Classifications

• • G—PHYSICS
  • G08—SIGNALLING
  • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
  • G08B13/00—Burglar, theft or intruder alarms
  • G08B13/02—Mechanical actuation
  • G08B13/08—Mechanical actuation by opening, e.g. of door, of window, of drawer, of shutter, of curtain, of blind
• • E—FIXED CONSTRUCTIONS
  • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
  • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
  • E02D29/00—Independent underground or underwater structures; Retaining walls
  • E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
  • E02D29/14—Covers for manholes or the like; Frames for covers
  • E02D29/1481—Security devices, e.g. indicating unauthorised opening
• • G—PHYSICS
  • G08—SIGNALLING
  • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
  • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
  • G08B25/004—Alarm propagated along alternative communication path or using alternative communication medium according to a hierarchy of available ways to communicate, e.g. if Wi-Fi® not available use GSM

Definitions

• Device for accessing an underground or surface civil engineering infrastructure comprising a multi-protocol communication module, and system for managing a fleet of access devices
• the present invention relates to the field of access solutions to underground and surface civil engineering infrastructures of all types. Access to infrastructure is generally via an access hatch also called an access cover or buffer.
• a hatch allows access to underground and surface civil engineering infrastructure for their inspection and control.
• Civil engineering infrastructure means in particular public or private (hydraulic, electric, gas, communication, etc.) networks, with the exception of domestic applications such as housing.
• the targeted infrastructures are thus, in a non-exhaustive manner:
• public infrastructure networks such as access networks to natural resources or public energy: water networks (in particular drinking water reservoirs or storage towers of the water tower type, networks of sanitation dedicated to rainwater and wastewater, hydrants - also called fire hydrants - and the corresponding networks), electrical energy networks, including electrical cabinets (which can be installed on the surface , or be underground, buried, or partially buried), networks for the passage of communication cables (telephone, optical fiber, etc.)
• water networks in particular drinking water reservoirs or storage towers of the water tower type, networks of sanitation dedicated to rainwater and wastewater, hydrants - also called fire hydrants - and the corresponding networks
• electrical energy networks including electrical cabinets (which can be installed on the surface , or be underground, buried, or partially buried), networks for the passage of communication cables (telephone, optical fiber, etc.)
• - private infrastructure networks water, energy, underground (cable) or aerial communication infrastructure (antenna networks for example).
• a complete access solution generally comprises an access cover (hatch, or buffer), a frame to which the access cover is linked and which is for example sealed in the ground or on a fixed infrastructure, and a room located under (or behind) the access cover. It is important to ensure the control of the resources distributed by these infrastructures (natural resources, energy or sources of information). This constitutes an issue of public and economic interest. For certain applications, it is important to be able to control the infrastructures at all times, that is to say ensure continuity in the availability of information concerning them.
• the traditional solution for controlling, diagnosing, supervising and correcting networks consists of periodic human intervention in the "manholes" (that is to say at the level of infrastructure access rooms).
• This solution is costly in that it recursively mobilizes human resources to inspect the networks, requires the transport on site of maintenance personnel, tools. Human intervention also inherently presents certain risks, whether at the opening of access or in networks.
• document CA2862457 relates to the combination of a hatch with an antenna integrated in a ventilation zone, in order to be able to transmit and receive a signal.
• a communicating hatch can, for example, allow remote control of environmental parameters in a room formed under the hatch.
• the document US8258977 proposes a solution making it possible to control environmental parameters in the enclosure of a room.
• the invention tends to propose an access solution and a management system solving all or part of the aforementioned problems.
• the invention relates to an access device to an underground or surface civil engineering infrastructure, comprising an access hatch having a closed position in which it closes a chamber and an open position in which it gives access to said room.
• the hatch comprises a communication module comprising at least one antenna allowing the emission of a signal on at least one wireless communication network.
• the communication module is of the multi-protocol type so as to be able to transmit a signal according to at least two wireless communication protocols or according to at least one wired communication protocol and at least one wireless communication protocol.
• the association with the access device of a multi-protocol communication module offers the advantage of guaranteeing continuity of data transmission. It allows the installation of access devices, potentially constituting the same fleet of access devices, in various zones and to adapt them to the wireless communication networks available in these zones. In certain variants of the invention, even if a wireless communication network is unavailable, the use of another network allows ensuring the transmission of data. Transmission over two networks can be simultaneous, but, advantageously, the communication module can allow switching from one network to another, for example depending on network availability. The invention thus allows in particular the reliable transmission of data from devices for accessing an underground or surface civil engineering infrastructure for sensitive infrastructures and / or having a geographic location making transmissions complex.
• the protocols implemented can be chosen from:
• wired communication protocols can be adapted to communication by optical fiber or cable
• short-range wireless communication protocols can be chosen from: NFC, RFID, Bluetooth, in particular Bluetooth low energy, Lifi, Zigbee (brands filed); and medium or long range communications protocols can be chosen from 4G, 5G, LoRa, Sigfox, NB-loT, LTE-M, GPRS (registered trademarks).
• the communication module can be adapted to bidirectional communication.
• the communication module can be adapted to evaluate the availability of communication networks employing respectively the different protocols according to which said communication module is adapted to communicate, and to select the communication protocol for sending and / or receiving data by depending on the availability assessed.
• the communication module communicating on a first network can be adapted to switch its communication on a second network during a communication breakdown on the first wireless network.
• the access device can comprise at least one sensor chosen from: a sensor for opening or closing the hatch, a sensor for at least one environmental parameter of the chamber, an intrusion sensor near the hatch, an intrusion sensor or attempted intrusion into the chamber, each sensor being configured to deliver a signal to the communication module, the communication module being adapted to transmit the signal or signals, or information derived from said signal or said signals.
• the door opening or closing sensor can be chosen from: a contact sensor, a door angular position sensor, an accelerometer, an optical sensor.
• the access device can comprise at least one sensor of at least one environmental parameter of the chamber among: a sensor of temperature, humidity, presence or concentration of particles, presence or level of water, presence or concentration of a gas.
• the access device may comprise at least one intrusion sensor near the hatch among: a vibration sensor, a thermal sensor, an optical sensor, a sound sensor and / or at least one intrusion or attempted intrusion into the room among: a shock sensor, a vibration sensor, a temperature sensor, a sound sensor.
• the communication module can include an antenna that is indissociable from the hatch.
• Access device may include a battery enabling the communication module to be supplied, as a main item or in the event of a main electrical source failure.
• the hatch of the access device may include a rigid outer skin under which is formed a set of ribs substantially orthogonal to said outer skin, the ribs being arranged so as to form at least one compartment in which the communication module is installed, to the exception, where appropriate, of the antenna of said communication module, the compartment being closed by a rigid inner skin ensuring the mechanical protection of said communication module.
• the invention also relates to a system for managing a fleet of access devices to one or more underground or surface civil engineering infrastructures, the system comprising a set of access devices such as as previously defined and a server, each access device being configured to communicate with the server via at least two communication networks.
• each access device can be associated with an identifier communicated during any communication between the access device and the server, said server being adapted to retrieve geolocation information from said device from a memory. access.
• the management system may comprise at least one computer system for access to said server, the access system executing a computer program called the management platform, said management platform being adapted to provide information on the state of each of the access devices or on environmental data from the sensors fitted to the access devices.
• Said platform may include differentiated access to information from said access devices according to at least two user profiles.
• FIG. 1 shows an access device according to an embodiment of the invention according to a first aspect of the invention
• FIG. 2 shows an access device according to another exemplary embodiment
• FIG. 3 schematically shows an equipped communication module that can be implemented in the invention
• FIG. 4 schematically shows a management system of a fleet of access device according to another aspect of the invention.
• FIG. 5 schematically represents, by way of example, one aspect of a management system according to FIG. 4.
• FIG. 1 represents a hatch 1 and the frame 2 to which it is linked, which are intended to close off a chamber (not shown in FIG. 1) or to allow access thereto.
• the hatch 1 is shown in an open position, allowing access to the chamber via the opening 21 formed by the frame 2.
• the hatch 1 can have various constitutions.
• the hatch is made of galvanized steel.
• the hatch 1 can be of cast iron (ductile, gray), of stainless steel, of composite material.
• the hatch can thus be made of a single material, or can combine different constituent materials.
• part of the pad surface can be made of a first material and the complementary surface can be made of another material.
• the pad can combine galvanized steel with a part having a particular coating or even made of cast iron having an insert of another material. This can in particular help to allow the transmission of electromagnetic waves through the hatch 1, as detailed in the following.
• the hatch comprises an external rigid skin 11, for example made of galvanized steel.
• the outer skin corresponds to the visible part of the hatch 1 when the latter is in the closed position.
• the outer skin 1 1 covers or provides surface continuity with the frame 2.
• the hatch 1 may have a slight elevation relative to the frame 2, and / or have a non-planar surface which is wholly or partly in elevation relative to frame 2.
• ribs 12 form compartments 13, 13 ’.
• the ribs 12 are substantially orthogonal to the outer skin 11.
• Frame 2 can also be made of steel.
• the other aforementioned constituent materials can alternatively be used.
• the frame 2 can in particular be made of the same material as the hatch 1.
• the room can, for example, for infrastructure to be secured, be made of reinforced concrete or fiber-reinforced mortar.
• the chamber can be made of composite material or any other material used in the field of civil engineering.
• the hatch 1 has a seat, that is to say a contact zone in the closed position, which can be simply placed on the frame 2 or be held in the frame 2.
• the hatch 1 is linked to the frame so that it can take an open position and a closed position.
• the hatch 1 can be mounted as a pivot with respect to the frame 2, by a pivot 15.
• the hatch 1 may have a simple opening, that is to say that the hatch 1 may be opened to using a simple lifting key, or it may have a more or less complex locking system (for example authorizing the opening of the hatch 1 only using a specific key).
• the locking system 16 can comprise two locking latches which can be turned so as to bear under the frame 2, preventing the hatch 1 from opening.
• the hatch 1 is equipped in the invention with a communication module 3.
• the communication module 3 may in particular include one or more electronic units 31 provided with at least one antenna 32 allowing the transmission of a signal over a wireless network.
• the communication module 3 can be arranged in a compartment 13 formed under the outer skin 1 1 by the ribs 12.
• the compartment 13 accommodating the communication module 3 is closed by an inner skin 14.
• the inner skin 14 is rigid.
• the inner skin 14 may be of inorganic or organic material (for example plastic, of composite material) which can be reinforced to resist mechanical damage (for example using cutting tools), thermal (for example with a torch) or chemical. It can be, as non-exhaustive examples, metallic, for example being made of hot-dip galvanized steel, stainless steel, cast iron (ductile, gray), of composite material. Many materials, organic or inorganic, can thus be used.
• the antenna 32 of the communication module 3 can be positioned in the same compartment as the rest of the communication module 3. Alternatively, the antenna can be positioned in another compartment. The positioning of the antenna is important in order to allow the transmission of waves from the plate 1.
• the antenna 32 (or one or more of the antennas of the communication module) can be arranged in a compartment other than the electronic unit 31.
• the position of the antenna is advantageously optimized so as to have the best possible transmission of electromagnetic waves through the hatch 1.
• the constraint of protection of the antenna vis-à-vis an external solicitation can be taken into account.
• the configuration and the position of the antenna can in particular take into account the configuration of the ribs 12, as well as the presence on the hatch 1 of zones of less damping for the electromagnetic waves: zones of thickness thinner than the rest of the hatch 1, or made of a material different from the rest of the hatch allowing better passage of the waves, presence of a key hole in the hatch, etc.
• the communication module is integrated (positioned) in a fixed or adjustable manner, to ensure the best signal transmission performance and consequently the lowest possible energy consumption.
• FIG. 2 shows another exemplary embodiment of an access device according to the invention.
• FIG. 2 represents an access hatch 1 which, unlike the hatch of the device in FIG. 1, is substantially circular.
• the frame 2 is, in correspondence, substantially circular. It gives access to a bedroom 4.
• the plug or hatch 2 is typically made of cast iron (for example ductile iron).
• Frame 2 is made of the same material.
• the hatch 1 is articulated by a pivot 15 to the frame 2.
• a locking means 16 can make it possible to block the hatch 1 in the closed position.
• Ribs 12 form compartments 13, 13 ′ under the upper skin 11 of the hatch 1.
• the compartments can be opened or closed by an inner skin.
• the communication module is installed, fixed to the internal face of the upper skin 11 of the hatch 1.
• the communication module 3 can be fixed by conventional mechanical fixings, for example with screws . Other fixing means, for example, by magnetic elements can be used.
• the electronic unit 31 of the communication module and the antenna 32 can be fixed in the same compartment 13.
• the communication module is of the multi-protocol type. Switching from one protocol to another can be manual or automatic.
• the communication module is capable of communicating, and in particular of transmitting data via at least two networks, comprising at least one wireless communication network and using respectively different communication protocols.
• the communication module can be adapted to communicate, alternately or simultaneously, on two wireless networks or on a wired network and a wireless network.
• FIG. 3 An example of a communication module 3 which can be used in the invention is shown diagrammatically in FIG. 3.
• the communication module shown comprises an electronic box 31 and at least one antenna 32.
• the box 32 integrates a microprocessor 33 adapted to receive the signals coming from a set of sensors 34.
• the sensors 34 are integrated into the electronic unit 31 or are connected to said housing, as in the example shown, by sensor ports 35.
• the electronic unit 31 can advantageously be fluid-tight. It may include a plastic or steel shell.
• the ports of the electronic unit 31, whether these are the sensor ports 35 or, as described below, the ports for connecting an electrical power source, or still for the connection of an antenna, can advantageously be waterproof. Unused ports may be covered by a waterproof cap.
• the sensors 34 can have various detection or characterization functions.
• the sensors 34 may include a sensor for the position of opening or closing the hatch, an environmental sensor adapted to pick up an environmental parameter typically in the chamber 4 or near the chamber of the access device considered, a sensor making it possible to detect a presence or an intrusion near the access device or an intrusion or attempted intrusion into room 4.
• Each sensor 34 can be of various types, with or without contact.
• the sensors 34 may comprise a contact sensor, a sensor for the angular position of the hatch, an accelerometer, an optical sensor, a sensor for temperature, humidity, presence or concentration of particles, presence or level of water, presence or concentration of a gas, a shock sensor, a vibration sensor, a sound sensor.
• the communication module includes a power source.
• This electric power source can be a connection to an electric power network (for example a national distribution network) and / or to a local source (hydro-electric turbine, wind turbine, solar panel, etc.) and / or include a battery 36 used primarily or as backup in the event of a power failure by the network or the local source.
• the battery can be of different types, in particular of the lithium-ion type. It guarantees sufficient autonomy for the communication module 3, for example several months or even several years under normal conditions of use.
• the battery 36 can be integrated into the electronic unit 31, or be external to this unit as in the example shown in FIG. 3.
• Other sources of energy, complementary or alternative can be used: photovoltaic cells, connection to an electrical network, etc.
• the communication module is adapted to transmit according to at least two wireless communication protocols, alternately or simultaneously.
• the communication module 3 comprises at least one radio frequency module which can transmit according to at least two protocols, or at at least two modules which can respectively transmit according to at least one protocol.
• the communication module 3 comprises a first radio frequency module 37 and a second radio frequency module 38.
• the communication module may include a means of encrypting the transmitted data.
• the communication module 3 consists of several boxes linked together, for example each box managing a different communication protocol.
• the protocols used can generally be chosen from the Internet of Things protocols.
• the protocols that can be implemented in the invention can be categorized as follows.
• the protocols used can include one or more wired communication protocols.
• these wired communication protocols can be adapted to communication by optical fiber or cable.
• the protocols used include at least one wireless communication protocol.
• Wireless communication protocols can be short range communication protocols, and / or medium or long range communication protocols.
• Wired networks and short-range communication networks are mainly non-operated, that is to say independent of an antenna network deployed by an operator.
• short-range wireless communication protocols can be chosen from: NFC, RFID, Bluetooth, in particular Bluetooth Low Energy, Lifi, and Zigbee (registered trademarks).
• NFC NFC
• RFID NFC
• Bluetooth in particular Bluetooth Low Energy
• Lifi Low Energy
• Zigbee registered trademarks
• Medium or long range communications protocols can be chosen from 4G, 5G, LoRa, Sigfox, NB-loT, LTE-M, GPRS, GSM (registered trademarks).
• 4G Long Term Evolution
• 5G Long Term Evolution
• LoRa LoRa
• Sigfox NB-loT
• LTE-M Long Term Evolution-M
• GPRS General Packet Radio Service
• GSM registered trademarks
• Medium and long range communication networks can be of the operated or non-operated type.
• long-distance, low-consumption transmission technologies are preferred. They can in particular use the band 868Mhz-914Mhz. In certain cases of use, short or medium distance transmission technologies can be used. These technologies can use the 433Mhz band for example.
• a relay is then provided for the transmission of data over a long distance network to allow control of the access device from a remote platform.
• GSM Global System for Mobile communications
• UMTS / HSPA, LTE have the advantage of good network availability.
• the protocols supported by the communication module can for example be at least two of the protocols mentioned above.
• the protocols used can be modified, for example for a particular application or following an evolution of a protocol or the creation of a new protocol.
• the communication module 3 can be updated, via a physical communication port, or remotely.
• a modular design of the communication module can allow its evolution, for example by replacing a radio frequency module.
• the communication module can be configured to select the protocol to be used depending on the availability of the corresponding networks.
• the communication module can be configured to communicate in priority according to one of the protocols of the Internet of above, and switch to the GSM network if the priority network is unavailable.
• the communication module is configured to be able to communicate on three networks, according to three protocols.
• the module automatically switches from a first protocol to a second and then to the third in the event of successive communication failures.
• Each of the three protocols can use different means of communication. Alternatively, they can implement the same communication devices (for example the same module, the same antenna). Alternatively, two of the three protocols can implement the same communication devices and the third protocol implements communication devices different from those implemented by the other two protocols.
• the communication module is used to transmit a certain amount of data over a wireless communication network, but can obviously, according to certain configurations of the invention, receive information intended for the access means.
• the transmitted data can obviously come from the sensors 34, but they can also relate to the very operation of the communication module. They may for example include an indication of the charge level of the battery 36.
• the access device can, in certain embodiments of the invention, be capable of carrying out certain diagnoses of its condition and of transmitting the corresponding information. For example, the access device can ensure that the sensors it contains are working (or, at the very least, provide a measurement that is not inconsistent or improbable).
• the connection level on a wireless network can be determined, as well as the bandwidth available for data transfer.
• one or more antennas 32 may be necessary.
• a single antenna is linked directly to the electronic unit 31 by a suitable antenna socket.
• the antenna can, depending other embodiments, be integrated into the electronic unit 31.
• the antenna 32 can have various shapes, it can be rigid or wired, and has a diagram adapted to the frequencies used by one or more protocols used.
• the transmission power can be adapted during the installation of a given access device, depending on the availability of communication networks at the place of installation of the access device. The lowest possible power allows less electrical consumption, but the power must be sufficient to guarantee reliable data transmission.
• the communication module can be designed and programmed so as to transmit data only when a signal from a sensor corresponds to given information (for example, the opening of the hatch) or exceeds a predefined threshold by a measured value (for example, exceeding a given water level in the room).
• the communication module can be configured to transmit data periodically, for example at regular intervals. Failure to receive the expected data, insofar as the transmission times are predetermined or determinable, may result in an alert or a request for intervention on the access device concerned.
• the communication module can be provided with a device, for example a button 39, causing by its actuation the emission of a test signal on the communication network or networks.
• This test signal makes it possible to check whether the access device, once installed, is able to correctly transmit data.
• the invention relates to a system for managing a fleet of devices for accessing one or more underground or surface civil engineering infrastructures as previously described.
• a system is shown diagrammatically in FIG. 4.
• the system includes devices for accessing at least one underground or surface civil engineering infrastructure.
• a first access device A1 corresponds to a buffer allowing access to an underground infrastructure
• a second access device A2 corresponds to a device for accessing a surface infrastructure, for example an electrical cabinet.
• the first and second access devices A1, A2 correspond to communicating devices as previously described, and thus each comprise a multi-protocol communication module.
• the first access device A1 is suitable for communicating via a wireless network using the Sigfox protocol (registered trademark) with a first station B1, and on a wireless network using a GSM protocol with a second station B2.
• the second device is suitable for communicating via a wireless network using the LoRa protocol (registered trademark) with a third station B3, and with the second station B2 according to a GSM protocol.
• the data are then transmitted to a server S, in a conventional manner via one or more networks, after wired or wireless transmission to relays.
• the final transmission to the server can be ensured by Internet I.
• the server is able to receive, process and interpret data received according to various transmission protocols.
• the server s has adapted to process signals transmitted by all of the access devices communicating with the server s (each of these access devices can use different communication protocols).
• the server is accessible to an operator by a P platform.
• the P management platform is a computer program which is executed by a computer system.
• the P platform allows remote control of the management system's access devices.
• the control may include viewing the data from each access device.
• Said data may include information from measurements made by the sensors, or status data from the communication module associated with the access device.
• each access device of the system can be associated with an identifier.
• access device communicates with the server, it transmits its identifier to allow its identification.
• recognition algorithms can be used during the communication between the access device and the server, in order to allow respective authentication to secure the communication.
• the identification of the access device allows access to information concerning it.
• the access device can be geolocated, for example by loading position information associated with said access device during its installation.
• This position information (for example the latitude and longitude coordinates of the access device) can be saved in a computer memory during the installation of the access device.
• This memory can be understood at the server S or remote from it.
• position information can be recorded in a memory located at the level of the access device (for example in the communication module 3), this position information being attached in the data transmitted by the access device.
• FIG. 5 represents, by way of illustration, an example of information that can be delivered by the platform.
• FIG. 5 represents an example of a management screen that can be displayed to an operator controlling a fleet of devices for accessing underground or surface civil engineering infrastructures.
• the management screen of FIG. 5 is dynamic, in that it presents a certain number of zones constituting computer links making it possible, during an action on these zones, to access certain detailed information or to interact with one or more access devices.
• a card 51 makes it possible to view the various access devices of the management system, on the entire system or on a given zone.
• the access devices of the management system are represented on the card 51 by logos 52 which can advantageously make it possible to differentiate different types of access device, and / or the devices emitting an alert relating to their state or to a parameter controlled by sensors of said device concerned.
• the management system makes it possible to display data relating to the various access devices. For example, it displays the latest known information on the status of a given access device, and on the data it has transmitted.
• a zone of graphic objects 53 allows the synthetic display of the state of the access devices of the management system.
• Graphic objects 531 to 534 are described below by way of nonlimiting example.
• a network graphical object 531 indicates the number of access devices that can communicate with the server, and respectively the number of access devices experiencing communication problems (either cannot communicate with the server, or operate according to a communication protocol used as a backup following the breakdown of communication on the network using a default protocol). The details of the access devices concerned and, if applicable, the nature of the problems encountered can be viewed.
• a graphic object battery 532 makes it possible to display the number of access devices whose battery is at a satisfactory charge level, and respectively the number of access devices whose battery is at an insufficient charge level.
• the details of the access devices concerned as well as the precise charge level of the batteries of the access devices concerned can for example be viewed.
• a graphical connection object 533 makes it possible to display the number of access devices connected to the server. The details of the connected access devices can be viewed.
• a user graphic object 534 makes it possible to display the number of connected users. Typically, their identity can be viewed.
• an alert zone 54 indicates the various access devices for which an alert has been issued, relating to their state or to a parameter controlled by sensors of said device concerned.
• a menu 55 allows the display of detailed information on said alerts, on the data from the various access devices, in particular statistical information on this data, and on the state of the access devices.
• the platform can manage different levels of data access and different levels of interaction with remote systems (i.e. with access devices in the management system), according to different user profiles.
• one or more administrators can have access to all of the management system's functionalities, for all of the management system's access devices.
• Local administrators corresponding to a second user profile, can have access to all or part of the functionalities, but only for access devices located in a given geographical area, or for a given type of access device.
• Other profiles can be defined with limited access to certain functions.
• a control operator user profile can temporarily inhibit the sending of alerts associated with the opening of the hatch of one or more given access devices, in order to allow their physical control without triggering alert, for example for scheduled maintenance (visual inspection, battery replacement, etc.).
• the invention thus developed provides a device for accessing a civil engineering infrastructure, underground or surface, offering a reliable connection and particularly suitable for use in the context of a system for managing a fleet of devices for access.
• the developed features make it possible to adapt the various accesses to locally available networks, but also, if necessary, to guarantee data transmission in all circumstances by switching transmission from one wireless network to another.
• the system for managing a fleet of access devices allows simple and efficient management of said fleet, without requiring the organization of repetitive tours of control of the access devices. .
• the system of management makes it possible to intervene very quickly as soon as it is necessary on any of the devices in the fleet.

Landscapes

• Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• General Life Sciences & Earth Sciences (AREA)
• Paleontology (AREA)
• Business, Economics & Management (AREA)
• Environmental & Geological Engineering (AREA)
• Life Sciences & Earth Sciences (AREA)
• Computer Networks & Wireless Communication (AREA)
• Mining & Mineral Resources (AREA)
• Emergency Management (AREA)
• Civil Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Structural Engineering (AREA)
• Selective Calling Equipment (AREA)
• Arrangements For Transmission Of Measured Signals (AREA)
• Near-Field Transmission Systems (AREA)

Applications Claiming Priority (2)

Publications (3)

Family

ID=65494186

Family Applications (1)

Country Status (5)

Families Citing this family (2)

Citations (2)

Family Cites Families (11)

• 2018
  • 2018-07-10 FR FR1856352A patent/FR3083905B1/fr active Active
• 2019
  • 2019-07-02 SG SG11202100233WA patent/SG11202100233WA/en unknown
  • 2019-07-02 EP EP19752732.8A patent/EP3821085B1/de active Active
  • 2019-07-02 WO PCT/FR2019/051632 patent/WO2020012091A1/fr not_active Ceased
  • 2019-07-02 CN CN201980046248.2A patent/CN112789381A/zh active Pending

Patent Citations (2)

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events