EP3031009A2 - Systèmes d'acheminement et procédés d'association de données à un article transporté par un système d'acheminement - Google Patents

Systèmes d'acheminement et procédés d'association de données à un article transporté par un système d'acheminement

Info

Publication number
EP3031009A2
EP3031009A2 EP14759363.6A EP14759363A EP3031009A2 EP 3031009 A2 EP3031009 A2 EP 3031009A2 EP 14759363 A EP14759363 A EP 14759363A EP 3031009 A2 EP3031009 A2 EP 3031009A2
Authority
EP
European Patent Office
Prior art keywords
item
zone
data
conveying system
property
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP14759363.6A
Other languages
German (de)
English (en)
Other versions
EP3031009A4 (fr
Inventor
Darin Danelski
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Matthews Resources Inc
Original Assignee
Matthews Resources Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matthews Resources Inc filed Critical Matthews Resources Inc
Publication of EP3031009A2 publication Critical patent/EP3031009A2/fr
Publication of EP3031009A4 publication Critical patent/EP3031009A4/fr
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • G06K7/10415—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 fixed in its position, such as an access control device for reading wireless access cards, or a wireless ATM
    • G06K7/10425—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 fixed in its position, such as an access control device for reading wireless access cards, or a wireless ATM the interrogation device being arranged for interrogation of record carriers passing by the interrogation device
    • G06K7/10435—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 fixed in its position, such as an access control device for reading wireless access cards, or a wireless ATM the interrogation device being arranged for interrogation of record carriers passing by the interrogation device the interrogation device being positioned close to a conveyor belt or the like on which moving record carriers are passing
    • 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

Definitions

  • the present disclosure relates to conveying systems and methods, and in particular to conveying systems and methods of associating data with items being transported by a conveying system.
  • Conveying systems are used for a variety of purposes.
  • Exemplary conveying systems include packaging systems, order fulfillment systems, manufacturing systems, shipping sortation systems, and returns processing systems.
  • Some conveying systems use centralized multi-horsepower AC motors to drive shafts, belts or chains that, in turn, move banks of rollers to transport items throughout the conveying system.
  • Other conveying systems include rollers with internal DC "micro-horsepower" motors that drive a localized segment of rollers.
  • the latter systems include brushless DC roller conveying systems.
  • a brushless DC roller conveying system includes several components and features, such as drive rollers with self-contained brushless DC motors, intelligent local controllers, and networking between the controllers based on bidirectional communication protocols.
  • Brushless DC roller conveying systems can be controlled by local controllers that control local functions in each of a plurality of zones of the conveying system and a centralized controller that tracks "items" (such as corrugated boxes, plastic totes, or pallets) as the items are transported through the conveying system.
  • the centralized controllers tracks items by uniquely identifying the items at decision points in the conveyor system. These decision points include, for example, diverts, transfers, merges, order picking zones, weighing, sortation, and printing.
  • the conveyor systems often use bar codes that are printed on adhesive labels that are adhered to the items.
  • a permanent bar code label on a reusable tote could be temporarily assigned to item(s) contained within the tote.
  • the bar code associated with the permanent label is re-assigned when the items within the tote are changed.
  • bar code scanners are positioned at decision points to read the bar codes.
  • the bar code information is electronically sent to the centralized controller.
  • the centralized controller determines operations to be performed for the item or data to be transmitted to the barcode scan location.
  • This methodology is sub-optimal for a variety of reasons. For example, equipment capable of reading bar codes on moving items is expensive and can represent a large percentage of the cost of a conventional automated conveyor system.
  • bar code scanners throughout the conveying system are in communication with the central control system, which may result in extensive and expensive data communication networks and associated cabling.
  • information required at decision points is stored in a central database. Timely access to that database can become challenging on large automated conveyor systems because the central controller must service all decision points
  • the bar codes used in conventional automated conveyor systems are one- dimensional bar codes that uniquely identify the item.
  • one-dimensional bar codes do not contain any additional data about the item. Instead, data that determines the functions to be performed by the conveying system is stored remotely in a database associated with the centralized controller. This data can include routing information, order data, sort points, return points, or the like.
  • an item having an affixed one- dimensional bar code is transported by the conveying system.
  • the conveying system includes a first zone and a second zone, where each zone includes a conveyor section that transports items, a bar code reader configured to scan bar codes affixed to the items, and a local controller.
  • the conveying system further includes a centralized controller and a centralized database.
  • the bar code reader scans the bar code for an item when the item enters the corresponding zone and transmits the bar code information to the local controller.
  • the local controller retransmits the bar code information to the centralized controller for processing based on the operation for the particular zone.
  • the centralized controller could send an expected weight for the item identified by the bar code information to the local controller for the first zone for comparison with the actual weight of the item. If the second zone includes a label printer, the centralized controller will send information to the local controller for the second zone to cause the label printer to print an appropriate label for the item.
  • One problem with such systems is that the one-dimensional bar code does not allow information to be passed from one zone to another. Moreover, the information in the one-dimensional bar code cannot be updated. In addition, as stated before, the centralized controller can become a bottleneck for information transfer throughout the conveying system. Finally, bar code readers are required at every zone in such conveying systems, which is a significant cost for the conveying system and can slow down operation of the system to allow items to be scanned.
  • a similar conveying system including items with RFID tags have been implemented.
  • Such conveying systems allow information to be transferred from one zone to another (by writing information to the RFID tag).
  • RFID tags with every item can increase expenses significantly for large systems.
  • RFID tags can only be written a predefined number of times before they fail to operate reliably.
  • RFID tag readers at every zone which is a significant expense and can slow down operation of the system to allow tags to be scanned.
  • two-dimensional bar codes have allowed additional data to be passed along with the item.
  • two-dimensional bar codes can include data about a predefined route of a specific item within the automated conveyor system.
  • two- dimensional bar codes cannot be updated, thereby limiting the ability to update the data stored therein.
  • a method of associating data with an item being transported by a conveying system may include receiving an item at a first zone of a conveying system, receiving data associated with the item, storing the data in a first non- transitory computer-readable storage medium associated with the first zone, transporting the item to a second zone of the conveying system, and transferring the data stored in the first computer-readable storage medium to a second non-transitory computer-readable storage medium associated with the second zone.
  • a method of associating data with an item being transported by a conveying system may include receiving an item from a first zone of a conveying system at a second zone of the conveying system, receiving, by a local controller of the second zone, data associated with the item from a local controller of the first zone of the conveying system, wherein the data comprises an expected value for a property of the item, comparing, by the local controller of the second zone, the expected value for the property with an actual value for the property, in response to the comparing satisfying a threshold condition: transporting the item to a third zone of the conveying system, and transferring the data to a local controller of the third zone by the local controller of the second zone, and, in response to the comparing not satisfying the threshold condition, transporting the item to a fourth zone of the conveying system.
  • FIG. 1 depicts a block diagram of an illustrative conveying system according to an embodiment.
  • FIG. 2 depicts an illustrative method of associating data with an item being transported by the conveying system according to an embodiment.
  • FIG. 3 depicts an illustrative conveyor system according to an embodiment.
  • FIG. 4 depicts a block diagram of illustrative internal hardware that may be used to contain or implement program instructions according to an embodiment.
  • FIG. 1 depicts a block diagram of an illustrative conveying system according to an embodiment. As shown in FIG. 1, the conveying system includes a first zone 10 and a second zone 20.
  • Each zone 10, 20 may include a conveyor section 11, 21 configured to transports items, such as 1, a driver 12, 22 configured to drive the conveyor section 11, 21, a local controller 14, 24, and a non-transitory computer-readable storage medium 15, 25.
  • at least one zone, such as the first zone 10 may further include a data tag reader 13 (such as a bar code reader) configured to read data encoded in a data tag 2 (such as a bar code) associated with the item 1.
  • the first zone 10 further includes a scale 16, and the second zone 20 further includes a label printer 27.
  • the conveying system further includes a centralized controller 40 and a centralized database 41.
  • the conveying system does not include a centralized controller or a centralized database.
  • data may be stored in the computer-readable storage media 15, 25 associated with the respective zones.
  • the first zone 10 includes a scale 16, and the second zone 20 includes a label printer 27.
  • These functions of the first zone 10 and second zone 20 were selected to illustrate one potential implementation for a conveying system. Other embodiments are also considered within the scope of this disclosure. For example, any number of operations could benefit from allowing data to move through the conveying system with the item, such as at decision points in the conveying system, which may include diverts, transfers, merges, order picking zones, weighing, sortation, printing, and the like.
  • FIG. 2 depicts an illustrative method of associating data with an item being transported by the conveying system according to an embodiment.
  • a data tag such as, for example, a one-dimensional bar code, a two-dimensional bar code, an RFID tag, or the like
  • a data tag reader may read 210 (or scan) the data tag.
  • the data tag reader may transmit 215 the data tag information to a local controller.
  • the local controller may access 220 a database to store the data tag information and identify an expected value for each of one or more properties for the item based on the data tag information.
  • the local controller may retransmit 225 the data tag information to a centralized controller, which accesses 227 a central database to identify the expected values for the item.
  • a value for each of one or more actual properties of the item may be identified 230.
  • a scale may be used to identify 230 a weight of the item.
  • physical dimensions of the item may be identified 230 using one or more sensors. Additional and/or alternate properties may be identified 230 within the scope of this disclosure.
  • the local controller may compare 235 an actual value and an expected value for each property to determine whether the item satisfies a threshold condition.
  • the local controller for the first zone may submit 240 a request to a local controller for a second zone to determine whether the item may be transported to the second zone.
  • the local controller for the second zone may respond 245 to the request when the item can be transported.
  • the item may then be transported 250 to a second zone, and the data tag information and/or the one or more actual values for the properties may be transmitted 255 to a non-transitory computer-readable storage medium associated with the second zone.
  • the item may be transported 260 to a third zone for manual processing.
  • the second zone (and subsequent zones, if any) need not rescan the data tag on the item because the information is stored locally and transferred to the corresponding zone as, before or after the item is being transported.
  • information relevant to the zone for an item having a particular data tag may be stored at the zone in a local non-transitory computer-readable storage medium.
  • the data tag may only be scanned in the first zone, thereby speeding up the transportation of the item through the conveying system.
  • the disclosed method avoids the need for a data tag reader at each decision point in the conveying process, and eliminates the time needed for reading physical data tags, such as bar codes or RFID tags, in all but one zone.
  • all processing may be performed locally, which resolves the potential for blocking at a centralized controller.
  • the data tag is affixed to the item.
  • the data tag could be affixed to a container holding the item or be integrated with the container holding the item, or otherwise associated with the item.
  • the conveying system may use rollers with internal DC "micro-horsepower" motors that drive a localized segment of rollers, including brushless DC roller conveying systems.
  • the brushless DC roller conveying system may include drive rollers with self- contained brushless DC motors, intelligent local controllers and networking between the local controllers based on bidirectional communication protocols. These types of conveyor systems may segment long runs of conveyor into zones that hold a single item in a "Zone". Each zone may have its own powered/motorized roller and can be started and stopped independently of the other zones on the system.
  • the local controller in addition to driving the brushless motor, may also have the capability of communicating with external control components through digital I/O
  • Each controller may include a microprocessor and may be in communication with a non-transitory computer-readable storage medium.
  • the computer-readable storage medium may be of a sufficient size to store information pertaining to the item within the particular zone.
  • the computer-readable storage medium may not exist as a physical device that travels with the item (as in conventional systems), but instead may act a virtual data tag that travels with the item. Because the data tag is virtual, no cost is associated with the data tag or the
  • reader/writer devices that are conventionally required throughout conveying systems to read and write RFID tags. Also, since the data is transferred electronically, there are no speed issues relative to the transfer of the data.
  • the conveying system may include a motor driven roller conveyor line, which is basically a series of individual conveyors (zones) connected end to end to create longer lengths of conveyor. Each section of conveyor may contain its own drive roller which is coupled to the other rollers in that zone.
  • each local controller communicates with the controller(s) adjacent to it to move an item from one zone to another.
  • a storage medium may reside on a zone controller card of each local controller.
  • the conveying system conveys an item in a container, weighs the item to determine whether the item is the correct weight (based on the bar code), and either diverts the box to a reject lane or prints a shipping label specific to that item.
  • a box enters Zone 1.
  • a bar code scanner reads a bar code on the item and identifies the item as Item 12345.
  • the identifying information for Item 12345 is sent to a local database to access specific information about the item.
  • the item information may include a customer address, an expected weight, expected dimensions, a desired shipping method (such as, United States Postal Service delivery, UPS® delivery, Fed-Ex® delivery, or the like), a quantity, a SKU, whether the item is fragile, whether the item requires additional packaging, and/or the like.
  • Zone 1 queries Zone 2 to determine whether Zone 2 can accept the item (currently occupying Zone 1). If Zone 2 is clear, Zone 2 will activate its conveyor and notify Zone 1 that it is clear. Zone 1 then turns on its conveyor and transports the item towards Zone 2. As the item is being transported from Zone 1 to Zone 2, Zone 1 may send the entire data record for the item to Zone 2.
  • Zone 2 weighs the item. The actual weight is stored in the data record. Zone 2 queries Zone 3 to determine whether Zone 3 can accept the item. If Zone 3 is clear, Zone 3 will activate its conveyor and notify Zone 2 that it is clear. Zone 2 then turns on its conveyor and transports the item towards Zone 3. As the item is being transported from Zone 2 to Zone 3, Zone 2 may send the entire data record (including the recorded weight) for the item to Zone 3.
  • Zone 3 may compare the expected weight with the actual weight (as measured in Zone 2). If the local controller in Zone 3 determines that the actual weight is not the same as the expected weight, within a prescribed tolerance, Zone 3 will divert the item to Zone 6 (a reject conveyor). In this instance, Zone 3 queries Zone 6 to determine whether Zone 6 can accept the item. If Zone 6 is clear, Zone 6 will activate its conveyor and notify Zone 3 that it is clear. Zone 3 then turns on its conveyor and transports the item towards Zone 6.
  • Zone 3 will transport the item to Zone 4.
  • a label printer may print a shipping label for the item.
  • the data for the shipping label may be included in the data record now resident in the local non-transitory computer-readable storage medium in Zone 5.
  • the controller may retrieve the required information and cause the printer to print the label.
  • the order may then be marked as shipped.
  • the completed order information may be sent to an order tracking database separate from the conveying system.
  • FIG. 4 depicts a block diagram of illustrative internal hardware that may be used to contain or implement program instructions according to an embodiment.
  • a bus 400 serves as the main information highway interconnecting the other illustrated components of the hardware.
  • CPU 405 is the central processing unit of the system, performing calculations and logic operations required to execute a program.
  • CPU 405, alone or in conjunction with one or more of the other elements disclosed in FIG. 4, is an exemplary processing device, computing device or processor as such terms are used within this disclosure.
  • Read only memory (ROM) 410 and random access memory (RAM) 415 constitute exemplary memory devices.
  • a controller 420 interfaces with one or more optional memory devices 425 to the system bus 400.
  • These memory devices 425 may include, for example, an external or internal DVD drive, a CD ROM drive, a hard drive, flash memory, a USB drive or the like.
  • the memory devices 425 may be configured to include individual files for storing any software modules or instructions, auxiliary data, common files for storing groups of results or auxiliary, or one or more databases for storing the result information, auxiliary data, and related information as discussed above.
  • Program instructions, software or interactive modules for performing any of the functional steps associated with the steps, applications, or the like described above may be stored in the ROM 410 and/or the RAM 415.
  • the program instructions may be stored on a tangible computer-readable medium such as a compact disk, a digital disk, flash memory, a memory card, a USB drive, an optical disc storage medium, such as a Blu-rayTM disc, and/or other recording medium.
  • An optional display interface 430 may permit information from the bus 400 to be displayed on the display 435 in audio, visual, graphic or alphanumeric format.
  • the information may include information related to a current job ticket and associated tasks.
  • Communication with external devices may occur using various communication ports 440.
  • An exemplary communication port 440 may be attached to a communications network, such as the Internet or a local area network.
  • the hardware may also include an interface 445 which allows for receipt of data from input devices such as a keyboard 450 or other input device 455 such as a mouse, a joystick, a touch screen, a remote control, a pointing device, a video input device and/or an audio input device.
  • input devices such as a keyboard 450 or other input device 455 such as a mouse, a joystick, a touch screen, a remote control, a pointing device, a video input device and/or an audio input device.
  • compositions, methods, and devices can also “consist essentially of or “consist of the various components and steps, and such terminology should be interpreted as defining essentially closed-member groups. It will be further understood by those within the art that if a specific number of an introduced claim recitation is intended, such an intent will be explicitly recited in the claim, and in the absence of such recitation no such intent is present.
  • two recitations means at least two recitations, or two or more recitations). Furthermore, in those instances where a convention analogous to "at least one of
  • A, B, and C, et cetera is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (for example, " a system having at least one of A, B, and C” would include but not be limited to systems that have A alone, B alone, C alone, A and B together, A and C together, B and C together, and/or A, B, and C together, et cetera).
  • a range includes each individual member.
  • a group having 1-3 cells refers to groups having 1, 2, or 3 cells.
  • a group having 1-5 cells refers to groups having 1, 2, 3, 4, or 5 cells, and so forth.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Toxicology (AREA)
  • Health & Medical Sciences (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Operations Research (AREA)
  • Economics (AREA)
  • Tourism & Hospitality (AREA)
  • Quality & Reliability (AREA)
  • General Business, Economics & Management (AREA)
  • Marketing (AREA)
  • Human Resources & Organizations (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Entrepreneurship & Innovation (AREA)
  • Strategic Management (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Control Of Conveyors (AREA)
  • Financial Or Insurance-Related Operations Such As Payment And Settlement (AREA)
  • Discharge Of Articles From Conveyors (AREA)

Abstract

L'invention concerne des systèmes et des procédés d'association de données à un article en cours de transport par un système d'acheminement. L'article et les données associées à l'article sont reçus au niveau d'une première zone du système d'acheminement. Les données sont stockées dans un premier support de stockage lisible par ordinateur associé à la première zone. L'article est transporté jusqu'à une deuxième zone du système d'acheminement, et les données stockées sur le premier support de stockage lisible par ordinateur sont transférées à un deuxième support de stockage lisible par ordinateur associé à la deuxième zone.
EP14759363.6A 2013-08-07 2014-08-04 Systèmes d'acheminement et procédés d'association de données à un article transporté par un système d'acheminement Ceased EP3031009A4 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201361863409P 2013-08-07 2013-08-07
PCT/US2014/049638 WO2015020976A2 (fr) 2013-08-07 2014-08-04 Systèmes d'acheminement et procédés d'association de données à un article transporté par un système d'acheminement

Publications (2)

Publication Number Publication Date
EP3031009A2 true EP3031009A2 (fr) 2016-06-15
EP3031009A4 EP3031009A4 (fr) 2017-09-27

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EP14759363.6A Ceased EP3031009A4 (fr) 2013-08-07 2014-08-04 Systèmes d'acheminement et procédés d'association de données à un article transporté par un système d'acheminement

Country Status (5)

Country Link
EP (1) EP3031009A4 (fr)
JP (1) JP2016533991A (fr)
CA (1) CA2918809A1 (fr)
HK (1) HK1221050A1 (fr)
WO (1) WO2015020976A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120024669A1 (en) 2010-07-29 2012-02-02 Danelski Darin L Networked Motorized Drive Roller Conveyor
US9446908B2 (en) 2012-02-05 2016-09-20 Matthews Resources, Inc. Conveying systems and methods of associating data with an item transported by a conveying system
US10229383B2 (en) 2012-02-05 2019-03-12 Matthews International Corporation Perpetual batch order fulfillment

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Publication number Priority date Publication date Assignee Title
US5294004A (en) * 1991-08-19 1994-03-15 Durand-Wayland, Inc. Article-holding cup and scale for apparatus that sorts articles by weight
JPH05116722A (ja) * 1991-10-23 1993-05-14 Murata Mach Ltd ローラコンベア
JP4652583B2 (ja) * 2001-01-24 2011-03-16 アンリツ産機システム株式会社 物品検査システム
US7591366B2 (en) * 2005-06-07 2009-09-22 Hytrol Conveyor Company, Inc. Conveyor system and method for accumulating packages of varying lengths
JP5148504B2 (ja) * 2005-12-09 2013-02-20 テゴ，インコーポレイテッド 多重無線周波数ネットワークノードｒｆｉｄタグ
US8731476B2 (en) * 2007-03-19 2014-05-20 Peter Zawilski Device for and method of characterizing an object
US8284993B2 (en) * 2009-06-18 2012-10-09 Hytrol Conveyor Company, Inc. Decentralized tracking of packages on a conveyor
US20120024669A1 (en) * 2010-07-29 2012-02-02 Danelski Darin L Networked Motorized Drive Roller Conveyor
WO2012024278A1 (fr) * 2010-08-16 2012-02-23 First Solar, Inc. Système et procédé de mesure

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Also Published As

Publication number Publication date
WO2015020976A3 (fr) 2016-03-31
CA2918809A1 (fr) 2015-02-12
JP2016533991A (ja) 2016-11-04
EP3031009A4 (fr) 2017-09-27
HK1221050A1 (zh) 2017-05-19
WO2015020976A2 (fr) 2015-02-12

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