WO2024246094A1 - Verfahren zum erfassen bzw. feststellen eines warenbestands - Google Patents
Verfahren zum erfassen bzw. feststellen eines warenbestands Download PDFInfo
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- WO2024246094A1 WO2024246094A1 PCT/EP2024/064711 EP2024064711W WO2024246094A1 WO 2024246094 A1 WO2024246094 A1 WO 2024246094A1 EP 2024064711 W EP2024064711 W EP 2024064711W WO 2024246094 A1 WO2024246094 A1 WO 2024246094A1
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- radio
- label
- cio
- association
- detection
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Classifications
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10366—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves the interrogation device being adapted for miscellaneous applications
- G06K7/10475—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves the interrogation device being adapted for miscellaneous applications arrangements to facilitate interaction with further interrogation devices, e.g. such that at least two interrogation devices may function and cooperate in a network of such devices
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10297—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves arrangements for handling protocols designed for non-contact record carriers such as RFIDs NFCs, e.g. ISO/IEC 14443 and 18092
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
- G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
- G06K7/10366—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves the interrogation device being adapted for miscellaneous applications
- G06K7/10376—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves the interrogation device being adapted for miscellaneous applications the interrogation device being adapted for being moveable
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/08—Logistics, e.g. warehousing, loading or distribution; Inventory or stock management
Definitions
- the invention relates to a method for recording or determining an inventory of goods.
- Shelves, sales tables or other storage devices such as those found in retail stores and/or warehouses must be regularly restocked with goods. Goods are also regularly removed to put together orders. For example, some supermarkets offer to collect goods according to an order (e.g. online) so that they can then be picked up or delivered.
- an employee often uses a transport vehicle such as a shopping cart to transport the goods away from the storage device, for example to a pick-up station, or to the storage device. It is essential to keep an overview of the inventory of the storage device, the transport vehicle and/or the pick-up station. Otherwise, this can lead, for example, to goods not being available on the shelves of a supermarket and potential customers buying them elsewhere or to an order being incomplete.
- documenting the respective inventory is very time-consuming and prone to errors.
- the invention therefore has for its object to provide a method for detecting or determining an inventory of goods, whereby the aforementioned problems are overcome.
- the invention therefore relates to a method for detecting or determining an inventory of goods, wherein a radio tag which is attached to a product or a good is detected with the aid of detection devices positioned at different locations, wherein the radio tag is newly associated with a device which is at least temporarily located in the vicinity of the radio tag, depending on the occasion, and can subsequently be detected associated with the device with the aid of the selected detection devices, or wherein the association between the device and the relevant radio tag is dissolved depending on the occasion.
- the measures according to the invention have the advantage that the inventory is recorded quickly and correctly.
- radio labels which are attached, for example, to a product or its packaging, such as in a large area, can be carried out in different ways.
- the radio labels can be implemented as radio frequency identification labels, or RFID labels for short.
- a mobile detection device can be provided for detection, often referred to as a mobile reader, which can be carried to one of the RFID labels in order to be brought into contact with the RFID label. to record it individually electronically.
- Stationary recording devices can also be provided. These can be installed, for example, in the entrance or exit areas of shops, or at certain points in the area, for example on shelves, in order to electronically record RFID labels that are available there or that are moving past. Recording the RFID label therefore always requires being in its vicinity.
- the stationary RFID readers mentioned must be in operation permanently or with regular checks covering a large period of time, i.e. they must consume electrical power in order not to miss individual RFID labels that are moving past them.
- radio labels can also be implemented on the basis of other radio technologies or radio standards.
- the radio labels can be designed as Bluetooth radio labels, or BT radio labels for short.
- Bluetooth-compliant stationary detection devices since their transmission power is typically very limited due to their miniaturized design, a large number of Bluetooth-compliant stationary detection devices often have to be installed to cover a large area. These devices essentially have to be operated in continuous power-consuming mode in order to reliably detect the radio labels moving in their overall coverage area.
- the method has the following method steps:
- ES label radio signal
- the advantage of this preferential detection is that not all of the detection devices installed in a large area have to be involved in detecting the radio tag at the same time, but only a selection from the total number of installed detection devices that are characterized by being favorably positioned for receiving the tag's radio signal. Detection devices that are positioned too far away or those that are less suitable or not suitable for receiving the tag's radio signal due to the existing topology or structure of the area are not involved and can therefore be used for other activities or operated in an energy-saving mode or deactivated altogether. Over time, however, the selection can change because, for example, due to the movement of the device, other detection devices meet the first criterion and are therefore classified as being favorably positioned.
- This selection process of the detection devices therefore forms the basis for energy-saving operation of the entire detection devices and also of each individual detection device and thus makes a significant contribution to the energy-saving operation of a system to which the detection devices belong.
- the method can also be used not only for stationary radio tags, as is the case, for example, when such radio tags are attached to products lying on a shelf or resting on a parked transport vehicle. Rather, the method can also be used for location-variable radio tags, as is the case when a product to which the radio tag is attached is moved, for example, by a customer or an employee of a company. The same applies if a group of radio tags is moved together. In the case of a moving radio tag, a selection of the detection devices involved in the detection can be expected to change over time according to the changing device position.
- the invention is used primarily in retail and will therefore be discussed in detail with reference to retail.
- the application of the invention is not limited to retail. Rather, it can also be used in an industrial environment, such as in the manufacturing industry or the logistics sector. In all of these areas of application, there is a fundamental need for goods or products, regardless of whether they are packaged individually or in groups, to be transported from one place to another and for the products themselves or the packaging units in which they are packaged to be identified and/or the number of products or packaging units to be recorded.
- ESLs electronic shelf labels
- a mounting structure on which the ESLs and the product are located can be designed as a shelf or as a shelf level. It is also possible to attach them to a presentation table.
- ESLs can also be designed as a display sign for placement on a table.
- Such a display device can also be designed as a tag for attachment to clothing.
- the mounting structure can therefore also be designed as a connecting link between the electronic display device and the product.
- Such a mounting structure can therefore also be implemented as a stitching thread, needle or similar.
- the ESL can also be attached to the structure supporting the packaging units, such as a pallet, etc., or to the packaging that encloses the large number of products packaged with it.
- Such autonomously operated ESLs usually have a battery for their power supply.
- the ESLs can also be attached to a special electronic shelf rail designed to control and support several ESLs, whereby an electronic shelf rail controller (often just called a controller) is used in such an electronic shelf rail, which supplies the ESLs attached to the electronic shelf rail with data and/or power.
- the electronic shelf rail has lines that can be contacted by contacts of the ESL, which run along its length and are connected to the controller.
- these are not the autonomously operated ESLs described above, but rather externally supplied ESLs with contacts, since their supply is via the Controller, which in turn is powered by a battery or otherwise - as discussed below.
- the electronic shelf rail is designed in such a way that it forms the front end of a shelf and is attached to the shelf either directly or via an adapter.
- each display device has a screen, which is usually implemented as an electrophoretic screen in order to enable the most energy-efficient operation possible for battery-operated display devices that have a battery as an energy storage device.
- a screen which is usually implemented as an electrophoretic screen in order to enable the most energy-efficient operation possible for battery-operated display devices that have a battery as an energy storage device.
- other types of screens such as LCD screens, OLED screens or similar, can also be used.
- the electrical power supply can be provided by means of radio signals, which is known in technical jargon as "Power over WIFI", whereby the energy transmitted in this way is stored in an electrical energy storage device, such as a rechargeable battery in the display device.
- the energy supply can also be based - if not completely, then at least in a supporting manner - on a photovoltaic panel, with the help of which the energy storage device of the electronic display device is supplied with electricity.
- the electronic display device can also be designed as a so-called video shelf rail, which essentially has a relatively long video screen designed for mounting on the front edge of a shelf and adapted to the typical height of a conventional shelf rail, which is controlled by its own controller so that virtual ESLs can be played back in addition to video content.
- video shelf rails are often supplied with power via a cable due to their power consumption.
- an electronic device intended for displaying product and/or price information as the detection device, in particular an electronic Display device for still image and/or video playback or a control device for controlling such an electronic display device, wherein the electronic device is designed to receive the label radio signal.
- This design essentially consists in having at least one radio receiver that is technically suitable or designed to receive the label radio signal. This can be implemented in such a way that a separate (possibly additional) radio receiver is provided or a radio receiver provided for other purposes, such as communication, which is usually a component of a transceiver, is also used.
- the radio receiver is connected to a control device (a controller) of the electronic device in order to further process the fact of the reception of the label radio signal or its information content and/or to make it accessible to a higher-level system component or to make it available to it.
- the radio receiver can also be integrated into the control device of the electronic device, i.e. form a component thereof.
- the electronic device designed to receive the label radio signal can also be realized without a display functionality.
- the automatic selection of the at least one detection device involves the shared use of a communication infrastructure provided by a retailer for the electronic display of product and/or price information.
- This measure avoids the otherwise existing need for an additional communication infrastructure for transmitting the aforementioned fact of receiving the label radio signal and/or the information content transported with it.
- the existing communication infrastructure is thus used as efficiently as possible in two respects, namely on the one hand for communication regarding the product and/or price information and on the other hand for transmitting the data relating to the reception of the label radio signal.
- each of the electronic Address display devices specifically - analogous to the addressing system used for transmitting data relating to product and/or price information - in order to inform the display device in question that it has been selected to receive the label radio signal.
- a first command e.g. a start reception command
- this means that its radio receiver intended for receiving the label radio signal is permanently ready to receive in order to be able to receive the label radio signal continuously until a second command (e.g. a stop reception command) is received. This then leads to the radio receiver being deactivated, which reduces the power consumption at least by its proportion.
- the reception readiness of the radio receiver intended for receiving the label radio signal can follow an alternating cycle of temporary reception readiness followed by a temporary lack of reception readiness of the electronic display device, which is intended to reduce energy consumption, until the second command (e.g. a reception stop command) is received.
- the second command e.g. a reception stop command
- a radio-based system for operating the display devices uses a large number of access points, which form a radio network for the communication supply of the display devices in order to send addressed data to the display devices or to retrieve (addressed) data from the display devices.
- a group of display devices is assigned to an access point and can be addressed via this address.
- the assignment works by selecting a suitable radio channel in the ISM radio band (ISM stands for "Industrial, Scientific and Medical"), which is used by the respective access point, and registering the display device in question with the access point responsible for it.
- ISM International, Scientific and Medical
- the display device registered in this way can then subsequently establish a connection with the access point defined in this way. Carry out radio communication. If the connection with the predefined access point is lost, the display device can search for another access point that is available via radio technology, scanning the available channels (or channels known to the display device or pre-programmed) and, upon detection of an access point or its radio signal (e.g. based on the SSID - SSID stands for "Service Set Identifier"), re-registering with this access point.
- SSID - SSID stands for "Service Set Identifier
- a substantially standardized radio communication protocol such as ZigBee ® or Bluetooth ®
- a proprietary radio communication protocol such as the one disclosed in WO 2015/124197 A1, can also be used.
- the access points are in turn typically connected by cable to a central control device, namely a higher-level data processing device.
- the data processing device can, for example, be formed by a local server on which a software application (such as management software) is executed to manage and control the electronic display devices.
- a cloud-based data processing device can also be used for this, which provides the aforementioned functionality for managing and controlling the display devices.
- the data processing device supplies the individual display devices with the information assigned to them, which is visualized using the respective screen, and can also query and respond to the operating status or other status data of the display devices, such as the charge status of the battery.
- the data processing device also has access to a digital map, which is either designed as a planogram or realogram or - in other words - forms a digital representation of the positions of the electronic display devices.
- the data processing device therefore knows all the positions of the display devices in the area it manages. It is therefore able to make a selection regarding the preferred position based on knowledge of the device position, i.e. to determine the detection devices that are favorably positioned.
- the device which exists separately - i.e. detached - from the radio tag, is at least temporarily moved along with the radio tag, which is equivalent to the determination that it is at least temporarily in the vicinity or immediate vicinity of the radio tag.
- PDA personal digital assistant
- Such a PDA is used, for example, by retailer employees as they move through the area to fulfill customers' purchase orders, for which the term "store picking" is often used.
- PDA can, for example, send out a localization radio signal with its radio transmitter or a localization light signal with a light diode or its screen, with which it can be automatically localized in the area.
- a smartphone Such a smartphone is used, for example, by a customer of the retailer while moving through the area to display a shopping list or to navigate in the area.
- the smartphone can also send out at least one of the localization signals discussed in connection with the PDA (localization radio signal or localization light signal) in order to be localizable.
- PDA localization radio signal or localization light signal
- a smart shopping cart Such a smart shopping cart is used, for example, by a customer or by a retailer's employee while moving through the area to transport products, display price and/or product information about a product using a screen on the shopping cart, display a shopping list using the screen or display additional information, such as To visualize navigation or advertising information using the screen.
- the shopping cart can also send out at least one of the localization signals discussed in connection with the PDA in order to be localizable.
- a load transport vehicle In comparison to the smart shopping cart, such a load transport vehicle is designed for transporting a larger quantity of products or goods and/or for transporting heavier products or goods or generally higher loads.
- This can be, for example, a forklift truck or a self-propelled transport sled or the like.
- This load transport vehicle is mainly moved by an employee during his work in the area in order to bring products to the shelves etc. and to refill shelves.
- the transport vehicle can also send out at least one of the localization signals discussed in connection with the PDA in order to be localizable.
- a radio beacon transmitter in particular a Bluetooth Low Energy Radio Beacon.
- This is the most reduced form of the device.
- Such a device can be miniaturized and battery-operated, easy to transport and functionally reduced to only transmitting the localization radio signal.
- a retailer often already has an existing localization infrastructure, for example for handling store-picking-related activities or for navigation support for customers or employees, it has proven particularly advantageous, according to a first variant for determining a position that is favorable for receiving the label radio signal, to use a localization infrastructure that is provided by a retailer for localizing a person moving in the store or the device moved with the person to automatically determine the device position.
- a localization infrastructure that is provided by a retailer for localizing a person moving in the store or the device moved with the person to automatically determine the device position.
- the advantage here is that an existing localization infrastructure is simply used, but here with the particular advantage that de facto no adaptation of the technical components involved is necessary. Rather, the data processing device can be directly directed to the determined device position. and use them to select the appropriate detection device(s).
- the process of automatically determining the device position can be carried out radio-based according to a first embodiment.
- the localization radio signals are received by location receivers and evaluated according to the technology used.
- a combination of at least three receivers with the aid of a generally known triangulation method can be used to narrow down or determine the device position.
- This can be easily implemented in the case of WiFi or WLAN radio technology or Bluetooth technology, for example, in particular with the aid of Bluetooth Low Energy Beacons.
- each of the location receivers used is designed to independently determine the relative position of the device in relation to the receiver.
- the underlying design of the location receiver can have several receiving antennas.
- the electronics of the location receiver process the individual reception of the localization radio signal with each of the antennas in such a way that runtime differences and/or phase differences between the individual antennas are evaluated together with the respective measured received signal strength in order to determine the distance to the device and the direction towards the device.
- the measured received signal strength is usually specified using the "Received Signal Strength Indicator", which is recorded as standard in modern receiving electronics.
- the localization or real-time tracking system from the company "Quuppa Oy", Keilaranta 1, 02150 Espoo, Finland, web address: quuppa.com, abbreviated as QUUPPA, is mentioned in this context.
- the real-time tracking system from "Quuppa Oy” has, on the one hand, a "locator” as a location receiver, for example the models “Q17” or “Q35” are referred to, and on the other hand at least one so-called “tag” for emitting the localization radio signal, for example the models “QT-1" QT3- 1" or “QT1 Module” can be used.
- the process of automatically determining the device position can be image-based.
- cameras can be installed at different points in the area to record the respective scene.
- the image capture is carried out in the usual optoelectronic manner.
- Both still images and video recordings can serve as the basis for further processing.
- the recordings are analyzed using image or video evaluation software, whereby the objects that are generally known to the analyzing computer because they are pre-programmed or previously stored, or their characteristics and/or the light signals emitted by them, are identified.
- the device position for the device in question is determined taking into account a wide variety of aspects. These aspects can relate to the known position of the camera in the area or room, its known orientation in the area or room, as well as its known optical imaging system.
- these aspects can also relate to additional objects contained in the image or video that are known to the analyzing computer as such or in terms of their characteristic properties, and serve as a reference point for location in the area or room.
- Cameras mounted in or on the shelves and/or surveillance cameras distributed throughout the area or room, etc. can be integrated as cameras for this purpose.
- the analyzing computer can be located in the camera itself and make a significant contribution to determining the device's position. With knowledge of the aspects mentioned that can be used to narrow down the device's position, this can even be done entirely in the camera and the camera delivers the device's position (if necessary together with an identifier that identifies the device, which is also recorded) to the data processing device.
- the discussed determination of the device's position takes place directly in the data processing device, taking the aspects mentioned into account.
- a different procedure can also be used.
- the device position is determined solely by the fact that a localization radio signal is received, transmitted by at least one of the detection devices.
- the localization radio signal has the property of a radio beacon signal (called a "radio beacon signal" in English), which has a data content with the help of which the transmitting detection device can be identified because the connection between the detection device and the data content characterizing it is stored in the data processing device or is accessible to it.
- the detection device is equipped for this purpose with a radio module (e.g. designed to transmit a Bluetooth Low Energy Beacon signal).
- This localization radio signal is transmitted with such a transmission power that it can only be received in the environment, namely a reception range of a few meters up to about twenty meters around the detection device, so that the device position, as soon as the localization radio signal is reliably received by the device, can only be within this reception range.
- the fact that the device receives such a localization radio signal is therefore sufficient to determine that the device is within the reception range of the detection device. This is equivalent to fulfilling the first criterion for the detection device emitting the relevant localization radio signal.
- the device used for the purposes discussed here has a receiving module that is at least suitable for receiving the localization radio signal.
- a transceiver (in particular a Bluetooth Low Energy transceiver) is preferably used for this purpose, which also allows the fact of the localization radio signal being received to be transmitted wirelessly together with the data content to the data processing device, where further processing, in particular the automatic selection of the detection device that is in the best position to receive the label radio signal, is carried out.
- further processing in particular the automatic selection of the detection device that is in the best position to receive the label radio signal, is carried out.
- several localization radio signals can also be received at one device position, which are sent by different detection devices. so that several position-favored detection devices can be present.
- the method includes the transmission of a label radio signal that is individual to the radio label by the radio label during its movement, in particular by a group of radio labels during their joint movement. This allows each radio label to be detected during its movement and thus also tracked along its path of movement.
- the transmission of the label radio signal during a joint, group-wise movement of the radio labels ensures that none of the radio labels moves unnoticed. This means that all radio labels that move as a group remain continuously detectable.
- the detection comprises receiving the label radio signal by the at least one selected detection device and, on the basis of the received label radio signal, identifying the radio label and/or a product associated with the radio label.
- This measure not only allows the fact that a radio label is present in the reception area of the at least one detection device to be detected, but also ensures that its identity is known and, consequently, the movement path of the label can also be clearly detected. The same applies analogously to the product to which the radio label is attached.
- the automatic selection is carried out by the data processing device, whereby the data processing device digitally stores the positions of the detection devices or has access to the digitally stored positions.
- the data processing device also knows the device position. Based on this, the data processing device selects the at least one detection device that is favorably positioned by the distance of the respective detection device to the device being smaller than a limit value.
- the selection of the at least one detection device can be carried out entirely on a software basis, provided that the digital map of the area with the Detection devices are available for the software and the device position in the area has been determined at least to a limited extent - as previously discussed - and is therefore available for the software.
- the digital map will have at least two, but preferably also three dimensions.
- the two-dimensional map describes the area in a planar manner, whereas the three-dimensional map also indicates the height above the plane, as is the case with a planogram or realogram in which the entirety of the ESLs or similar display devices is noted in three dimensions.
- the automatic selection is also carried out by the data processing device.
- the data processing device is informed with the aid of the device about the at least one detection device to be selected. This is done by transmitting the data content of the localization radio signal received by the device, which was sent out by the detection device and received by the device.
- the sending detection device can be identified with the aid of the data content, because the connection between the detection device and the data content characterizing it is stored in the data processing device or is accessible to it.
- the automatic selection is based solely on the fact that there is such a close spatial relationship between the device and the detection device in question that the device can reliably receive the localization radio signal of the detection device.
- the limit value for the second variant mentioned in connection with the first variant arises naturally due to the transmission power predetermined by the detection device for transmitting the localization radio signal and the associated radio signal propagation.
- the absolute device position therefore does not have to be determined explicitly. However, it is at least limited to the reception area around the relevant detection device due to the fact that the data processing device knows the position of the detection device in a preferred embodiment.
- the data processing device defines the limit value variably depending on the device position. For example, if the device position is determined within a large space in a store, i.e. outside of the otherwise usually very narrow aisles, a larger limit value can be set for the space than is the case for the shelf aisles. On the one hand, this can ensure that even when there is a large space, at least one or a small group of detection devices is selected so that the radio tags located there can be reliably detected. In this case, the limit value can also be set to 10 meters. At the same time, it can also ensure that when the radio tags are present within a shelf aisle, not too many, i.e.
- the limit value can be set to less than four meters.
- a direction-dependent course of the limit value can also be set around the device position, which allows for very flexible modeling to take the real environmental conditions into account.
- the data processing facility can determine the limit value depending on the location to make it possible to select an optimal number of detection devices. This can be 1, 2, 3 or 4, or up to a maximum of 10 or 20 detection devices, so that the energy consumption for the detection process remains manageable and the selection is spatially limited to those detection devices that are presumably close to the radio tags to be detected.
- the data processing device has access to the charge level of a battery of the at least one detection device to be selected or selected, because this charge level was stored in advance or retrieved in a timely manner and the time period during which only one of these detection devices fulfilling the first criterion is selected to receive the tag radio signal is defined inversely proportional to a charge level of a battery of the respective detection device. This ensures a temporal involvement of the individual detection devices in the group of selected detection devices.
- a second criterion for the automatic selection can be used that for the detection devices satisfying the first criterion, with knowledge of the charge level of a battery of these detection devices, those detection devices are selected for receiving the tag radio signal whose batteries exceed a charge level threshold, in particular only that detection device is selected for receiving the tag radio signal whose battery has the highest charge level.
- a subgroup of the positionally favoured detection devices can be formed depending on the state of charge, which extends the battery life for the other detection devices which already have a relatively low state of charge and which would have to be selected based on the first criterion.
- the radio tag is equipped with its own battery and is operated electrically self-sufficiently in order to transmit the tag radio signal.
- any radio tag equipped in this way can also be operated as a self-powered radio tag in an area where no external power supply is provided.
- the radio tag can transmit its tag radio signal.
- the battery of the radio tag in question must be recharged or replaced.
- the radio label is supplied with electricity via an energy transmission radio signal in order to transmit the label radio signal.
- This enables the use of such radio labels without time restrictions, which in the case of the battery-operated radio labels for the method according to the invention.
- Such externally powered radio labels can therefore be used without interruption in the method discussed and thus ensure that they are continuously available for their detection.
- the energy transmission radio signal for electrical supply is transmitted in a frequency range between 700 MHz and 1 GHz and/or in a frequency range above 2 GHz.
- the use of the frequency range between 700 MHz and 1 GHz ensures that the energy transmission radio signal can propagate as far as possible and is thus effectively available for external supply over a large area.
- the energy transmission radio signal for electrical supply is to be transmitted in a frequency range of an ISM frequency band above 1 GHz, in particular the 2.4 GHz or 5 GHz ISM frequency band.
- An additional radio infrastructure for the sole purpose of energy transmission can be omitted and the existing radio communication infrastructure and the radio signals generated are used as the energy transmission radio signal.
- ISM bands where ISM stands for Industrial, Scientific, and Medical, and the use of these frequency bands for industrial, scientific, and medical applications is license-free.
- a mixed configuration of low-frequency energy transmission radio signal in the frequency range of 700 MHz and 1 GHz and high-frequency energy transmission radio signal in the frequency range of the 2.4 GHz or 5 GHz ISM frequency band is used, for example to ensure the availability of at least one of the energy transmission radio signals in all areas of the site.
- This mixed configuration can be advantageous if the radio tag is designed to work in two frequency bands, i.e. to receive the energy transmission radio signal in these two frequency bands and use it for its own electrical supply.
- another product from the company "Wiliot Ltd.”, HaTochen 8, Ofek 10 Building, 3rd Floor, Caesarea 3079861, Israel, is mentioned, which is marketed under the name "Dual Band loT Pixel 117".
- At least one, preferably exactly one, of the energy transmission transmitters is automatically selected, which has the smallest distance to the device compared to at least one other energy transmission transmitter. This measure also makes an important contribution to energy-saving operation of the overall system, because only the selected energy transmission transmitter or transmitters are activated to transmit the energy transmission radio signal. From the totality of the available energy transmission transmitters, a selection is therefore always made in relation to a single device position, which includes one or more energy transmission transmitters, but less than the total.
- the data processing device also knows the positions of the energy transmission devices in the area and can, using the device position, which is also available to it, decide which of the energy transmission devices is most advantageous in terms of its position.
- the one selected is the one that has the smallest distance to the device position in the vicinity of which the radio tags that are to be detected are located.
- the positions of the energy transfer transmitters can be stored in a separate data structure or integrated into the data structures used to store the planogram or realogram. In any case, the data processing device has access to them.
- the selection made by the data processing device is then communicated to the relevant energy transmission device.
- This can be done via a cable, such as a local area network (LAN for short) or using "Power over LAN", so that the activation or deactivation of the relevant energy transmission device as well as its electrical power supply can be done via a cable over one and the same line.
- the energy transmission devices can also be integrated into a radio network. Their power supply can then be provided either by a battery or by a pure power supply. They can also be supplied by radio signals, which can be achieved using the technology known as "Power over WiFi".
- the method discussed ensures the most efficient and energy-saving operation of the system discussed, because only those detection devices are activated to detect a tag radio signal that are actually suitable for this purpose, and at the same time only those energy transmission devices are active to transmit the energy transmission radio signal that can actually be used for the radio-based external power supply of the radio tags in question.
- a detection infrastructure is established that dynamically adapts to the movement of the radio tag, which often efficiently uses an existing infrastructure.
- the position and movement of the radio tag are derived from the device position or are equated to this device position or the change in the device position to a good approximation.
- the location is therefore based on knowledge of the location of the device and can be extremely advantageous for detecting individual or groups of the associated radio tags.
- the association of the device - and thus ultimately at least indirectly a position - with one or more of the radio tags can take place initially, i.e. before individual, or possibly group-based, recording or tracking of the movement is started. This is used, for example, when a transport sled or a forklift truck etc. is loaded with a large number of products that are to be tracked subsequently.
- the device can be integrated into the vehicle or be a PDA, smartphone etc. of the person operating the vehicle.
- the device can also be associated with one or more of the radio tags on an ad hoc basis, i.e. while the device is moving through the area. This is used, for example, when a customer or employee takes a product or an object to which a radio tag is attached.
- the radio tag in question is then carried by the person, e.g. by hand, or placed in a transport vehicle, e.g. a shopping cart, a transport sled, a forklift, etc., and moved along.
- the device can be the smart shopping cart, integrated into the transport sled, forklift, etc., or be a PDA (Personal Digital Assistant), smartphone, etc. of the person.
- association data which represent the association between the radio tag and the device, in particular comprising or consisting of data transmitted from the radio tag to the device and an identifier of the device, is transmitted from the device and/or from the detection device and/or from the radio tag, preferably from the device, to the data processing device.
- the association data are preferably stored in the data processing device. This allows central monitoring and/or management and/or control of the entire inventory. If several devices are moved through the area (e.g. shop) in order to load or unload shelves, the data processing device knows about the inventory of the goods moved with the respective device and can take steps based on this knowledge.
- the data processing device can automatically Send out instructions, e.g. instruction data that can be interpreted by the device, so that another employee can sneak the goods, e.g. pick them up from a warehouse and bring them to the shelf in the sales area.
- Goods can also be reordered in good time if it is determined that a certain quantity of a product is not available.
- the association process can be carried out, for example, in such a way that the device automatically detects the respective radio tag (initially/on an occasion) once by receiving the tag's radio signal, i.e. it assumes the role of a mobile detection device once, and transmits the data received from the radio tag together with its identifier to the data processing device, where the relationship between the device and the radio tag in question is stored.
- This process is particularly suitable when there is no other technical device other than the device itself, because the association process can be carried out anywhere in the area, such as on any shelf where a customer takes a product to which the radio tag in question is attached.
- association process is carried out at a defined location, such as in a loading zone or in the area of a gate, a separate, permanently installed association device can be present there, which records both the mobile device and the radio tags moving with the mobile device once and transmits the identifier of the mobile device together with the data received from the radio tags to the data processing device, where the relationship between the device and the relevant radio tag or tags is stored.
- the relationship between the mobile device and the respective radio tag is stored in the data processing device, so that only the device position needs to be determined during movement through the area in order to then use at least one adjacent stationary detection device to detect the associated radio tag.
- the event-related association or the event-related dissolution of the association is triggered manually on the recording device or the device, in particular by means of interaction with a user interface, preferably by means of a software application running on the device.
- the employee who carries the device with him can therefore manually trigger the association or the dissolution of the association on his device (e.g. handheld/mobile phone/smart shopping cart/load vehicle) or the recording device (e.g. ESL).
- ESL electronic book reader
- the measure thus allows a fine subdivision of the goods inventory, so that it is recorded without delay which goods are associated with the device or not. This enables latency-free triggering because this is done directly by the employee and certain measurable events do not have to occur first, such as removing the device from the radio label. This allows the inventory of the goods carried with the device to be kept particularly up to date. If this is communicated to the data processing device, for example, the instructions or instruction data, i.e. the orders for the other employees and/or the employee's own orders, can be adjusted in real time.
- the device can, for example, continuously document the radio labels and/or the products that move with the device.
- An increase in the inventory of goods moved with the device can be recorded or determined by a radio tag, which is attached to a product, being newly associated with the device for a specific reason and can then be recorded as associated with the device using the selected recording devices.
- This event-related association can be triggered manually on the device, for example, by the person carrying the device interacts with the user interface of a dedicated software application running on the device.
- the event-related association or the event-related dissolution of the association can be carried out automatically.
- the event-related dissolution of the association can therefore be carried out automatically and/or manually.
- the advantage of automatic triggering is that human errors are further avoided.
- the susceptibility to errors in the association and thus the susceptibility to errors in the goods recording and/or goods documentation is thus further reduced. If the automatic and manual association or the event-related dissolution of the association are used together, rapid and at the same time secure monitoring of the goods inventory is ensured.
- the employee can thus manually document in real time that he has put down or picked up an item. However, if he forgets to do this, this is recorded automatically.
- the association or dissolution of the association can be triggered by automatically recognizing that the product and/or the radio tag is in a product detection area, in particular in a basket, or by automatically recognizing that the product and/or the radio tag is not in the product detection area.
- the association or dissolution of the association can therefore be triggered, for example, by determining that the radio tag and/or the corresponding item is in a product detection area provided for this purpose, in particular a storage area, e.g. within the basket of the smart shopping cart, or is no longer in this area.
- the device and/or the transport vehicle can, for example, have an area detection device that is different from the detection devices.
- the area detection device is designed to determine or detect the presence and/or absence of the radio tag and/or the item in the product detection area. This can be done radio-based and/or optically, for example using a camera. This allows the goods being carried to be monitored.
- the association or dissolution of the association is triggered by detecting a movement of the radio tag in relation to the device or a movement of the device in relation to the radio tag.
- This allows the inventory of the goods carried by the device to be recorded along the path of movement, so that each time an item is put down or picked up, the association is dissolved or established.
- the inventory of goods can thus be determined precisely along the path.
- local information can also be documented in this way, so that it can be automatically recorded where an item was picked up from or where it was taken to.
- the transport vehicle such as the smart shopping cart, the load transport vehicle or similar can be used for automatic event-related association or dissolution.
- the transport vehicle can recognize (using image recognition or motion sensor, etc.) that a product or item is being placed in its storage area, e.g. its basket, and triggered by this incident, it can record the radio tags in its basket once in order to determine the new item and make it available for further tracking of the radio tags that are moving with it.
- This system allows, for example, the precise tracking of goods that are transported by customers or staff in their shopping carts without the need to access or record personal data. These measures also make it quite easy to check whether all goods that are moving with a device have actually been paid for as soon as they move towards the exit of the area (e.g. the exit of the supermarket).
- the association or dissolution of the association can be triggered by determining that the radio tag associated with the device can be detected in accordance with the movement path of the device or that the radio tag associated with the device can no longer be detected in accordance with the movement path of the device. For example, a reduction in the inventory of goods moved with the device can be determined by the fact that a radio tag associated with the device can suddenly no longer be detected in accordance with the movement path of the device because the goods in question, to which to which the radio tag is attached, has already been deposited at its destination or elsewhere and can therefore no longer be detected in a very short time if the selection of detection devices changes according to the movement of the device. If this situation is detected, the association between the device and the radio tag in question can be dissolved. This means that, for example, the activity of restocking shelves by supermarket staff can be automatically tracked and it can be verified that the goods marked with the radio tag in question have also been deposited in the correct place or at least in the correct area of the area.
- the radio labels that move with the device as well as the reduction or increase in the number of radio labels that move with it can also be recorded using the freely moving device itself.
- the transport device such as the smart shopping cart, the transport sled or the forklift, etc., with which the device is moved either directly or indirectly via the person operating the transport device, itself has an energy transmission device that serves for a, in particular permanent, radio-based energy supply to the radio labels on board the transport device.
- the energy supply already provided in the transport device is also used to supply the energy transmission device with electricity.
- This energy supply already provided in the transport device is used, for example, to operate the electronics provided there or the electrified drive mechanism.
- the radio labels are supplied with energy, they send out their individual label radio signals, with the help of which (i.e. via their data content) they can be clearly identified.
- the device continuously documents the radio labels and/or the products that are moved with the device.
- a list is kept on a computer that indicates which products are being carried on the "picker's" transport vehicle or on the "picker's” arm.
- the "picker” is the person, in particular the staff of the store, who physically takes care of transporting the goods in the store.
- the manual and/or automatic association or dissolution of the association the list is updated or logged to show that a product is now being carried by the picker or is no longer being carried by the picker and has been placed or refilled at the corresponding location.
- the mobile device and/or the transport vehicle can, for example, be configured as an area detection device and/or have the area detection device that continuously detects the label radio signals and thus always knows the number of radio labels being moved, which means that, for example via the data processing device, conclusions can be drawn about the products being moved with the device. This means that the device can always keep the products being moved with it and their number up to date, for example in a list.
- association data which represents the association between the radio tag and the device, in particular comprising or consisting of data transmitted from the radio tag to the device as well as an identifier of the device, are transmitted from the device and/or from the detection device and/or from the radio tag, preferably from the device, to a data processing device.
- the list can therefore also be maintained on the data processing device, where the list for the device is managed, i.e. kept up to date.
- the data processing device always retains an overview of the inventory of goods actually moving with the device, and ultimately with the person moving the device.
- the data processing device and/or the device can also create and ultimately optimize the route in the area for the person concerned.
- the data processing device and/or the device can thus create and/or optimize a route on the basis of the association data representing the association between the radio tag and the device and generate route instruction data that instruct a person using the device and/or a vehicle logically connected to the device, in particular a smart shopping cart or a load transport vehicle, to to follow the route.
- the route instruction data is processed using the device for this purpose.
- This measure can benefit the staff who are responsible for restocking goods, because a more efficient and time-saving route is offered fully electronically (e.g. using a device that is a PDA).
- staff store pickers
- This measure can also benefit customers who are in the store, if the data processing device has access to their electronic shopping list.
- the route for the customer can be optimized on the basis of the shopping list, and the recording device can be used to check which goods the customer already has with them and which goods still need to be collected.
- the relevant point in time or the relevant time window can be pre-calculated by the data processing device on the basis of the temporal course of the device's previous movement path and transmitted, for example, via a receive start command to the detection devices to be activated in the future, with the selection being made by extrapolating the previous movement path and applying the first criterion.
- This measure can be particularly useful if no ad hoc communication protocol is available for communication with the detection devices. This can be the case in particular if an existing communication infrastructure of an ESL system is used in order to use the relevant components designed to receive the label radio signal (ESL, controller, etc.) as detection devices.
- the tracking of radio labels that move with the device can also take place without associating the device with a radio label.
- those radio labels that are scheduled to be stationary at the respective location or in the vicinity of the respective recording device are also recorded, because they are located there in their designated place on the shelf, for example.
- the data processing device since the data processing device is informed of this scheduled position by accessing the planogram or the realogram, it can hide the radio labels that are scheduled to be recorded at the respective location or in the vicinity of the location defined by the device position, so that as a result only the radio labels that are actually moving with the device are tracked.
- the method is not limited to the detection of at least one moving radio tag. Rather, the method can also be used to detect one or more stationary radio tags.
- the measures according to the invention also preserve the capacity of the available radio channels, because only the position-favored detection devices and/or the position-favored energy transmission devices are activated and transmit.
- the electronic devices discussed ESLs, access points, servers, etc.
- the electronics can be discrete or built using integrated electronics or a combination of both.
- Microcomputers, microcontrollers, Application Specific Integrated Circuits (ASICs), possibly in combination with analog electronics or digital electronic peripheral components, can also be used. Many of the device functionalities mentioned are implemented - possibly in conjunction with hardware components - using software that runs on an electronic processor.
- Devices designed for radio communication usually have an antenna configuration as part of a transceiver module, possibly also a matching network, etc., for sending and receiving radio signals and can be controlled with digital signals or emit digital signals.
- the electronic devices can also have an internal electrical power supply, which can be implemented, for example, with a replaceable or rechargeable battery.
- the devices can also be powered via a cable, either through an external power supply or via “Power over LAN”.
- FIG. 1 shows a system for carrying out the method according to the invention
- Fig. 2 shows an application scenario of the invention in retail
- Fig. 3 shows a detection device designed as a controller of an electronic shelf rail
- Fig. 4 shows an exemplary process sequence for detecting a radio tag using the detection device, illustrated by means of a flow chart. Description of the embodiments
- FIG. 1 shows a first embodiment of a system 1 which is designed to carry out the method according to the invention.
- the system 1 has a server 2 as a data processing device.
- the server 2 is coupled to a wired network implemented as a "local area network", called LAN 3 for short.
- LAN 3 local area network
- Access points 4 are connected to the LAN 3, which are positioned in a distributed shopping area of a supermarket and serve to wirelessly connect electronic shelf rails RI to RIO to the server 2.
- the left access point 4 serves the shelf rails RI to R5
- the right access point 4 serves the shelf rails R 6 to RIO.
- the electronic shelf rails RI to Rll which are designed to communicate with the access points 4, can accommodate electronic displays which are not shown for reasons of clarity and are referred to in technical jargon as "electronic shelf labels", or ESLs for short. They are used to display product and/or price information relating to a product.
- ESLs are usually attached to the front edge of the shelf using the electronic shelf rails RI to RIO, essentially corresponding to the position of the product presented on the shelf.
- ESLs are supplied with both electrical and communication technology using the electronic shelf rails RI to RIO.
- the shelves and the products placed on them are also not shown in Figure 1 for the reasons mentioned.
- the arrangement of the electronic shelf rails RI to RIO shows that the shelves are arranged next to one another along a movement path S.
- Server 2 has access to the absolute positions of the electronic shelf rails RI to RIO in the shopping area, whereby in this case these positions are obtained from a digital planogram in which the respective absolute position of the electronic shelf rails RI to RIO is digitally stored.
- the electronic shelf rails RI to RIO each have a controller CI to CIO (also referred to as control device in the general description) provided on the side of them, which is used for Radio with the access points 4 and on the one hand controls the radio communication with one of the access points 4 and on the other hand communicates the instructions and/or display contents received from the server 2 to the affected ESLs, which is attached to its shelf rail RI to RIO, via cable.
- controller CI to CIO also referred to as control device in the general description
- Figure 3 shows a general electronics 5 of the controller CI, which is discussed in detail in the patent application PCT/EP2021/055916, and an access point radio module 6, also disclosed there, for radio communication with one of the access points 4.
- the electronics 5 has a computer 5A (e.g. a microcontroller) on which software programmed for the tasks to be carried out is processed.
- An interface 5B implemented with electrically conductive contact elements is used to contact lines of the electrical shelf rail RI that run along its longitudinal extension in order to supply ESLs that also contact these lines with electrical power and to communicate with them via wires.
- the controller CI has a battery 5C for its electrical supply, whereby the battery 5C can also be designed separately from the controller CI, i.e. can only be connected to it.
- the controller CI has a radio receiving module 7, which is designed to receive a label radio signal ES.
- the radio receiving module 7 can be integrated into the access point radio module 6 or by the access point radio module 6, specifically by its receiver, which is indicated in Figure 3 by the dot-dash block 6A.
- the radio reception module 7 can be activated by the server 2 by means of a reception start command RC via radio communication via the access points 4 with the controller CI when it is required to receive the label radio signal ES.
- each of the electronic shelf rails RI to RIO more precisely each of their controllers CI to CIO, forms a detection device for receiving the label radio signal ES emitted by a radio label El.
- the label radio signal ES is emitted by the radio label El shown in Figure 1, which is attached to a product PI in order to identify the product PI with its label radio signal ES.
- the radio label El must be supplied with energy for this because it does not have a battery, but is designed to obtain the energy required for its operation from a received radio signal.
- the system 1 has supply transmitters 8 positioned throughout the shopping area, which are designed to emit an energy transmission radio signal EF in the frequency range of approximately 900 MHz.
- the radio label El is designed to use the energy transmission radio signal EF for "harvesting energy" for its own electrical supply. It is therefore externally supplied via an energy transmission radio signal.
- radio label El is formed by a "Battery-Free loT Pixel" from Wiliot Ltd, already mentioned in the general description.
- Figure 1 shows a mobile battery-operated device 9, which is formed here by a portable radio fire transmitter, which sends out an individual radio fire signal FS, preferably a Bluetooth low-energy beacon signal, for the purpose of identification and location.
- This radio fire signal FS is received by location receivers 10 positioned throughout the shopping area, evaluated and the result of determining the location of the device 9 is transmitted to the server 2.
- the localization or real-time tracking system marketed by the company QUUPPA can be used, which includes both the location receiver 10 and the device 9 as a radio fire transmitter and a highly precise location of the device 9 is already possible with just a single location receiver 10 receiving the radio fire signal FS.
- the server 2, or more precisely the software running on the server 2 which knows the position of the location receiver 10 in the shopping area, can thus convert the location of the device 9 determined in relation to the location receiver 10 into an absolute device position in the shopping area.
- the radio label El is attached to a product or item and is detected using the detection devices CI - CIO positioned at different locations.
- the radio label El and the device 9 are associated with each other.
- association data representing the association between the radio label El and the device 9 are generated.
- the item connected to the radio label El is thus recorded and documented as inventory moved with the device 9.
- the association data can, for example, be transmitted together with the radio fire signal FS to the location receiver 10 and then transmitted to the server 2. There, the association data and thus the inventory carried with the device 9 as well as the position of the device 9 or the radio label El can be interpreted.
- instruction data can be generated which contain instructions on how to handle the goods.
- the radio label El and the device 9 are associated with each other, so that on the one hand the position of the device can be deduced from the position of the radio label El and vice versa.
- the association means that the goods are recognized as belonging to the device 9.
- the method 11 starts in a block 12.
- the products or goods are positioned in a product detection area.
- the product detection area can be, for example, the environment of an employee who carries the device 9 with him and carries the goods, for example, by hand or in a carrying device such as a basket.
- the product detection area can also be a storage area such as a basket of a smart shopping cart or the storage area of a load transport vehicle.
- the goods are connected to the radio label El.
- the radio label El is newly associated with the device (9) located at least temporarily in the vicinity of the radio label El depending on the event. The event can occur automatically, as discussed in the general part of the description.
- the association can take place automatically.
- a semi-manual event can also trigger the association.
- the employee may be necessary for the employee to confirm (e.g. on a user interface of the device 9) that the automatically recognized radio label El should be associated with the device 9.
- the association can also be triggered completely manually.
- the employee can scan the radio label El with the device 9, for example, bring it into a defined minimum distance in order to associate the radio label El with the device 9.
- the association data is generated, which is stored in the device 9, specifically in a memory unit of the device 9, in a computerized manner.
- the device 9 is therefore associated with the radio labels E1-E4 carried with it, so that the inventory of goods carried is documented.
- the location of the device 9 in the shopping area is determined, whereby the relative position of the device 9 determined with the aid of the location receiver 10 and related to the location receiver 10 was communicated to the server 2 and is converted there into the absolute device position GP in the shopping area, knowing the absolute position of the location receiver 10 in the shopping area.
- those controllers CI to CIO are searched for in relation to the device position GP that meet a first criterion, namely that they are located within a close range limit B, in this case, for example, less than five meters, from the device position, which is indicated accordingly in Figure 1. Since the software knows the absolute positions of the controllers CI to CIO in the shopping area, it calculates the distance between the device position GP and the position of the respective controllers CI to CIO and selects the controllers C4 to C6, since the first criterion is only met for these controllers C4 to C6.
- a close range limit B in this case, for example, less than five meters
- the already mentioned reception start command RC is then sent to the controllers C4 to C6 in order to activate their radio reception module 7 to receive the label radio signal ES.
- the label radio signal received with the help of the controllers C4 to C6 is communicated from the controllers C4 to C6 to the server 2 via one of the access points 4, where it is further processed by the software.
- the procedure can end in block 17.
- the process is continued in a loop 18 via blocks 13 to 16 until the software aborts the process.
- the controllers C5 to C7 are selected to receive the tag radio signal because now only they meet the first criterion, which is visualized by the shift of the short-range limit B to the right.
- the group of selected controllers C4 to C6, C5 to C7, C6 to C8, C7 to C9 and C8 to CIO gradually changes, which is indicated by the further gradual shift of the short-range limit B to the right.
- the controllers that are no longer selected are instructed to deactivate their receiving module 7 - after it was active - using the stop receiving command XC mentioned in the general description.
- the system of sensing devices activated according to the location in accordance with the first criterion can also be applied to the selection of the supply transmitters 8.
- the software of the server 2 can keep the left supply transmitter 8 activated while the right one is deactivated when the device 9 is located adjacent to the controllers CI to C5, and keep the left supply transmitter 8 deactivated while the right supply transmitter 8 is activated when the device 9 is located adjacent to the controllers C6 to CIO. This leads to a more efficient power supply of the radio label El by means of the respective energy transfer radio signal EF.
- the method discussed can of course also be used to pick up goods from the shelf 19 and move them with the device 9.
- the association can take place automatically if it is determined that the radio label El is moved with the device 9.
- the invention is then visualized again with the help of Figure 2 based on a spatial view along the shelf 19.
- the entities 4, 8 and 10 are only shown once for reasons of clarity, but this does not prevent them from being present multiple times in a real implementation in a retailer's store.
- the shelf 19 has three levels 20, 22 and 21.
- Each level 20 - 21 is equipped with ten electronic shelf rails RI to RIO, the controllers CI to CIO of which can be addressed individually for each level by the server 2 or its software.
- Each floor 20 - 21 therefore has the configuration of electronic shelf rails RI to 10 with their controllers CI to CIO shown in Figure 1, whereby these infrastructure elements are only provided with reference symbols throughout on the lowest floor and on the two floors above only three of these infrastructure elements are designated per floor in order not to overload the figure. For reasons of simplified representation, only one further group of infrastructure elements 4, 8 and 10 was shown.
- Figure 2 also shows a person 23 who is wearing the device 9, implemented as a radio fire transmitter, on a belt 24 while moving along path S. He is pushing a load transport vehicle 25 loaded with the products PI to P4.
- the products PI to P4 are marked with the radio labels El to E4, whereby they can be distinguished by a characteristic data content of their label radio signal ES.
- the radio labels El to E4 are associated with the device 9 as described in the context of Figure 4 and Figure 1.
- the goods or products PI to P4 carried are therefore known to the device 9 and logged there.
- the server 2 is also informed via the radio fire signal FS about which products PI to P4 are carried with the device 9. This is stored in the association data.
- the device position of the device 9 is determined within the short range limit B (less than 5 meters) adjacent to the electronic shelf labels RI to R3 of the three floors 20 - 21.
- the software compares the charge levels of the batteries (not shown) of the electronic shelf rails RI to R3 located within the short range limit B and selects, for example, only the controller CI of the lowest floor and the controller C3 of the top floor as the detection device for receiving the label radio signals ES.
- This process which now also takes into account the charge level of the battery of the respective electronic shelf rails RI to RIO, is repeated over time. For example, at a determined device position in the near range B of the electronic shelf rails R6 to R8, only one detection device (e.g. the controller C6 on the middle level) is selected to receive the label radio signal ES. Its battery has the highest charge level compared to the other controllers C6 to C8 that can be selected within the near range limit B. This enables the most energy-efficient use possible, particularly in an environment with densely packed detection devices.
- autonomous ESLs are used as detection devices, their block diagram structure differs from that of the controller CI in that the interface 5B is missing and a screen is provided instead.
- the computer 5A controls the radio-based receive and transmit tasks, the screen to display the Peris and/or product information received via radio.
- system 1 A second embodiment of system 1 will be discussed below, which focuses on the second variant according to the general description.
- a mobile phone is used as an example as a freely movable (mobile) battery-operated device 9, which has a Bluetooth Low Energy transceiver (first "BTLE transceiver") so that the label radio signals ES can be received.
- the device 9 is assigned to the person 23, which is also known to the server 2 because this connection is stored in a data structure there or can be obtained from an external data source.
- the person 23 is the employee of the supermarket who is busy repackaging the products Pl - P4.
- the products Pl - P4 are on the load transport vehicle 25.
- the load transport vehicle 25 has an electric drive that is powered by a powerful drive battery.
- the load transport vehicle 25 has the supply transmitter 8, which is therefore a component of the load transport vehicle 25 and is also powered electrically with the help of the drive battery.
- the transmission power of the supply transmitter 8 is set so that the radio labels El - E4 attached to the products P12 -P4 on the load transport vehicle 25 are reliably supplied with energy using the energy transmission radio signal EF, but this energy transmission radio signal EF has as short a range as possible beyond the load transport vehicle.
- the radio labels El - E4 are in the energy supply range of the energy transmission radio signal EF, they transmit their respective label radio signal ES, which is received by the device 9 is received using the first BTLE transceiver.
- the device 9 therefore monitors the existence of the radio labels El -E4 on the load transport vehicle 25 permanently or at intervals (eg periodically). In order to compensate for the power consumption of the device 9 caused by this, it can be provided that the device 9 is connected to the electronic supply of the load transport vehicle 25, i.e. draws its electrical power from the drive battery. Inductive charging can also be provided for this purpose.
- the device 9 generates the association data, i.e. a list of the identifiers of the radio labels El - E4, hereinafter referred to as the list of label identifiers, from the data content of the respective label radio signal ES.
- This list is automatically adjusted or changed when one of the radio labels El - E4 is removed from the load transport vehicle 25 or the load transport vehicle 25 is loaded with a product that has its own radio label, as discussed in the context of Figure 4.
- the device 9 can always provide the person 23 with plain text information relating to the products and/or store a list of the (unique) product identifiers for those products that are currently on the load transport vehicle 25.
- the inclusion of an external data source may also be necessary because the label identifiers are subject to encryption, particularly one that changes over time, the systematics of which are only known to the external data source.
- the electronic shelf rails RI - RIO used are modified in the present case in such a way that, in contrast to the modification according to Figure 3, they have a combined Bluetooth Low Energy reception and transmission module 7 (second "BTLE transceiver") instead of the reception module 7 discussed there. This allows at least two different operating modes to be implemented.
- the module 7 behaves as a Bluetooth Low Energy Beacon and transmits a Bluetooth Low Energy Beacon signal (hereinafter referred to as controller beacon signal) which can be received by the transceiver of the device 9 as soon as the device 9 is within the transmission range of module 7.
- controller beacon signal a Bluetooth Low Energy Beacon signal
- the transmission range within which the controller beacon signal can be reliably received can be limited to a few meters by adjusting the transmission power, eg less than 20 meters or less than 10 or even less than 5 meters.
- module 7 is in the receive state to receive different messages via Bluetooth Low Energy radio communication.
- a first message may be a message from the device 9 containing the list of product identifiers which identify products which are to be restocked with respect to a particular shelf rail.
- the second message can be a message from a radio label El-E4 containing the specific label identifier.
- the person 23 activates a software application on their device 9 that has been programmed and installed for the purpose of re-finishing products.
- the server 2 electronically provides instruction data on the device 9 containing information about the products PI to P4 to be re-finished, and the person 23 loads the load transport vehicle 25 with the products PI to P4.
- the radio labels El - E4 attached to the products PI - P4 are supplied with energy by radio, send out their label radio signals, and the device 9 records the label identifiers transmitted with them, so that either the device 9 itself or after communication with the server 2 confirms the correct selection of the products Pl - P4 and a list of the products on the load transport vehicle 25 is generated.
- the radio labels El - E4 are thus associated with the device 9.
- this fact is communicated to the server 2 by radio (e.g. by means of WLAN or by means of IoT communication, such as in accordance with the 5G or 6G mobile communications standard or higher) from the device 9, after which the server 2 activates the first operating mode of the module 7 for those controllers CI - CIO that are assigned to the products PI - P4 located on the load transport vehicle 25.
- radio e.g. by means of WLAN or by means of IoT communication, such as in accordance with the 5G or 6G mobile communications standard or higher
- controller CI of the lower level 22 is assigned to the product PI and P2
- the controller C7 of the middle level 21 is assigned to the product P3
- the controller CIO of the top level 20 is assigned to the product P4.
- the device 9 now moves with the person 23 along the path S shown in Figure 2 close enough to the controller CI of the lowest floor 22 so that the controller beacon signal sent from there can be received. As soon as this reception takes place, the device 9 instructs the relevant controller CI via communication with the server 2 to activate the second operating mode.
- the module 7 then goes into the receive state, which corresponds to the automatic selection of the relevant controller CI to receive a label radio signal (ES) sent by the radio label (El - E4) and/or an identifier derived therefrom, namely a product identifier that can be derived from the label identifier using the server 2 or an external data source available to the server.
- ES label radio signal
- El - E4 an identifier derived therefrom
- the first message or the second message can now be received by the controller 1.
- the latter can receive the label radio signals ES of the radio labels El - E4 directly, i.e. receive the second message, and also receive the first message.
- the product identifiers of the two products PI and P2 are made available to the relevant controller CI. Depending on the application, this can be interpreted as a re-sizing of individual products in terms of type and/or number.
- the transmission of two product identifiers can mean that two different product types are re-sizing with one piece each, or that two pieces of one product type are re-sizing.
- the CI controller therefore always keeps a direct overview of the number of products actually re-stacked and can communicate this information to server 2, where the inventory on the shelf and in the warehouse is monitored.
- server 2 can determine that both the two products PI and P2 or their containers, to which the radio labels El or E2 are attached, as well as the person 25 who has to carry out the re-stacking process, are/were in the immediate vicinity of the relevant shelf position where the products PI and P2 are to be placed. From this it is automatically concluded that the re-stacking process for the two products PI and P2 has been completed.
- Server 2 then instructs the relevant CI controller to enter its energy-saving mode, in which module 7 is deactivated in order to save energy.
- server 2 can at least determine that the person 23 who is responsible for the re-sizing was near the relevant shelf location for which the products PI and P2 are intended. From this knowledge, it is also automatically concluded that the re-sizing process for the two products PI and P2 is at least very likely completed. As a result, for example, the association of the radio labels El and E2 of the two products PI and P2 can be automatically dissolved.
- the server 2 instructs the relevant controller CI to enter its energy-saving mode, in which the module 7 is deactivated in order to save energy.
- the post-processing process for the two products PI and P2 was successfully completed by server 2 if the radio labels El and E2 assigned to the products PI and P2 are subsequently identified by device 9 as being on the load transport vehicle 25. are found to be missing because their label radio signals ES are no longer received by the device 9 as the load transport vehicle 25 continues to move along the path S.
- the association of the radio labels E2 and E3 with the device 9 is thus dissolved and no longer exists.
- the products PI and P2 are no longer included in the inventory carried by the device 9. Rather, the server 2 now knows that the products PI and P2 were positioned at the corresponding position in the shelf 19 and are therefore included in the inventory of the shelf 19.
- the position along the shelf 19 is also known by recording the position.
- the invention therefore makes it possible for the finishing process for products to be fully electronically tracked in a way that is as energy-efficient and radio-channel-friendly as possible.
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Abstract
Description
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Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020257040503A KR20260015192A (ko) | 2023-05-31 | 2024-05-29 | 제품 재고를 검출하거나 확인하기위한 방법 |
| CN202480029677.XA CN121127854A (zh) | 2023-05-31 | 2024-05-29 | 用于检测或确定商品库存的方法 |
| EP24731480.0A EP4720917A1 (de) | 2023-05-31 | 2024-05-29 | Verfahren zum erfassen bzw. feststellen eines warenbestands |
| AU2024279661A AU2024279661A1 (en) | 2023-05-31 | 2024-05-29 | Method for detecting or ascertaining a product stock |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EPPCT/EP2023/064622 | 2023-05-31 | ||
| PCT/EP2023/064622 WO2024245554A1 (de) | 2023-05-31 | 2023-05-31 | Verfahren zum erfassen von einem, insbesondere ortsvariablen, funk-etikett |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024246094A1 true WO2024246094A1 (de) | 2024-12-05 |
Family
ID=86760565
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2023/064622 Ceased WO2024245554A1 (de) | 2023-05-31 | 2023-05-31 | Verfahren zum erfassen von einem, insbesondere ortsvariablen, funk-etikett |
| PCT/EP2024/064711 Ceased WO2024246094A1 (de) | 2023-05-31 | 2024-05-29 | Verfahren zum erfassen bzw. feststellen eines warenbestands |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2023/064622 Ceased WO2024245554A1 (de) | 2023-05-31 | 2023-05-31 | Verfahren zum erfassen von einem, insbesondere ortsvariablen, funk-etikett |
Country Status (5)
| Country | Link |
|---|---|
| EP (2) | EP4720916A1 (de) |
| KR (2) | KR20260015837A (de) |
| CN (2) | CN121219707A (de) |
| AU (2) | AU2023451208A1 (de) |
| WO (2) | WO2024245554A1 (de) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140156367A1 (en) * | 2012-11-30 | 2014-06-05 | International Business Machines Corporation | Processing requests to buy items or services |
| WO2015124197A1 (de) | 2014-02-20 | 2015-08-27 | Imagotag Gmbh | System für zeitschlitzkommunikation |
| EP2956382A1 (de) | 2013-02-15 | 2015-12-23 | BiiP cvba | Hygienemittelspender |
| US20210012622A1 (en) * | 2019-07-11 | 2021-01-14 | Zebra Technologies Corporation | Scanning Devices and Methods to Constrain Radio Frequency Identification (RFID) Signals Within a Physical Location |
| EP3770812A1 (de) * | 2015-12-10 | 2021-01-27 | SES-Imagotag GmbH | Anzeigevorrichtung zum anzeigen einer preis- und / oder produktinformation |
| US20230154209A1 (en) * | 2020-07-06 | 2023-05-18 | Geotoll, Inc. | Method and system for reducing manual review of license plate images for assessing toll charges |
-
2023
- 2023-05-31 EP EP23730093.4A patent/EP4720916A1/de active Pending
- 2023-05-31 KR KR1020257040498A patent/KR20260015837A/ko active Pending
- 2023-05-31 CN CN202380097745.1A patent/CN121219707A/zh active Pending
- 2023-05-31 AU AU2023451208A patent/AU2023451208A1/en active Pending
- 2023-05-31 WO PCT/EP2023/064622 patent/WO2024245554A1/de not_active Ceased
-
2024
- 2024-05-29 EP EP24731480.0A patent/EP4720917A1/de active Pending
- 2024-05-29 WO PCT/EP2024/064711 patent/WO2024246094A1/de not_active Ceased
- 2024-05-29 KR KR1020257040503A patent/KR20260015192A/ko active Pending
- 2024-05-29 AU AU2024279661A patent/AU2024279661A1/en active Pending
- 2024-05-29 CN CN202480029677.XA patent/CN121127854A/zh active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140156367A1 (en) * | 2012-11-30 | 2014-06-05 | International Business Machines Corporation | Processing requests to buy items or services |
| EP2956382A1 (de) | 2013-02-15 | 2015-12-23 | BiiP cvba | Hygienemittelspender |
| WO2015124197A1 (de) | 2014-02-20 | 2015-08-27 | Imagotag Gmbh | System für zeitschlitzkommunikation |
| EP3770812A1 (de) * | 2015-12-10 | 2021-01-27 | SES-Imagotag GmbH | Anzeigevorrichtung zum anzeigen einer preis- und / oder produktinformation |
| US20210012622A1 (en) * | 2019-07-11 | 2021-01-14 | Zebra Technologies Corporation | Scanning Devices and Methods to Constrain Radio Frequency Identification (RFID) Signals Within a Physical Location |
| US20230154209A1 (en) * | 2020-07-06 | 2023-05-18 | Geotoll, Inc. | Method and system for reducing manual review of license plate images for assessing toll charges |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20260015837A (ko) | 2026-02-03 |
| KR20260015192A (ko) | 2026-02-02 |
| EP4720916A1 (de) | 2026-04-08 |
| EP4720917A1 (de) | 2026-04-08 |
| CN121219707A (zh) | 2025-12-26 |
| AU2024279661A1 (en) | 2026-01-08 |
| WO2024245554A1 (de) | 2024-12-05 |
| CN121127854A (zh) | 2025-12-12 |
| AU2023451208A1 (en) | 2026-01-08 |
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