JP6357255B1 - system - Google Patents

Abstract

It is desirable to provide a technique capable of appropriately operating a management network when managing an article using an RFID attached to the article or the like. A first relay device disposed in a first network layer and a second relay device disposed in a second network layer higher than the first network layer, the first relay device comprising: A first information receiving unit that receives object information related to the object transmitted according to a predetermined timing by a wireless tag attached to the object, and a first information receiving unit that receives the object information received by the first information receiving unit. 1 information storage unit, a first change determination unit that determines whether or not there is a change in the status of the object based on the reception status of the object information by the first information reception unit, and the first change determination unit And a first information transmission unit that transmits the object information of the object to the second relay device when it is determined that the situation has changed. [Selection] Figure 4

Description

  The present invention relates to a system.

A technique for managing an article in a warehouse using an RFID attached to the article has been known (see, for example, Patent Document 1).
[Prior art documents]
[Patent Literature]
[Patent Document 1] Japanese Patent Application Laid-Open No. 2006-036389

  When managing an article using an RFID attached to the article or the like, it is desirable to provide a technique capable of appropriately operating a network for management.

  According to a first aspect of the invention, a system is provided. The system may include a first relay device arranged in the first network hierarchy. The system may include a second relay device arranged in a second network hierarchy that is higher than the first network hierarchy.

  The first relay device may include a first information receiving unit that receives object information related to an object transmitted according to a predetermined timing by a wireless tag attached to the object. The first relay device may include a first information storage unit that stores object information received by the first information reception unit. The first relay device may include a first change determination unit that determines whether or not there has been a change in the state of the object based on the reception state of the object information by the first information reception unit. The first relay device includes a first information transmission unit that transmits the object information of the object to the second relay device when the first change determination unit determines that the state of the object has changed. Good.

  The second relay device may include a second information receiving unit that receives information transmitted by the first information transmitting unit. The second relay device may include a second information storage unit that stores information received by the second information reception unit. The second relay device may include a second change determination unit that determines whether the position of at least one of the first relay device and the second relay device has changed. When it is determined by the second change determination unit that the position has changed, the second relay device transfers the information stored in the second information storage unit to the third network layer higher than the second network layer. You may have the 2nd information transmission part which transmits to the arrange | positioned 3rd relay apparatus.

  The first information receiving unit may receive the object information from the wireless tag using a first communication method, and the second information transmitting unit is more reliable than the first communication method. The information stored in the second information storage unit may be transmitted to the third relay device using a high second communication method. The first communication method may be a communication method that does not perform collision control, and the second communication method may be a communication method that performs collision control.

  The first change determination unit is configured to determine whether the first information reception unit receives the object information from the wireless tag and a period in which the object information is not received from the wireless tag. It may be determined whether or not the situation has changed. The first relay device may further include a timing setting unit that sets a timing at which the first information transmission unit transmits the object information of the object to the second relay device. When the change is detected by the first change determination unit between the first timing and the second timing set by the timing setting unit, the unit information of the target May be transmitted to the second relay device, and the timing setting unit may set the timing in accordance with instructions received via the second network layer and the first network layer.

  The wireless tag may include a sensor, the first information reception unit may receive detection information detected by the sensor from the wireless tag, and the first information storage unit may receive the first information reception. The first relay device may collect the plurality of detection information received from the plurality of wireless tags and generate aggregate information by storing the detection information received by the unit. An aggregation unit may be included, and the first information transmission unit may transmit the aggregation information generated by the information aggregation unit to the second relay device. The first change determination unit may determine whether there is a change in the state of the object based on the detection information received by the first information reception unit, and the first information transmission unit The aggregate information may be transmitted to the second relay device when the first change determination unit determines that the state of the object has changed. The information aggregation unit may aggregate the plurality of pieces of detection information according to a preset aggregation condition, and the first relay device may further include an aggregation condition setting unit that sets the aggregation condition, The aggregation condition setting unit may set the aggregation condition according to an instruction received via the second network hierarchy and the first network hierarchy. The information aggregating unit may generate the aggregated information including only the detection information indicating abnormality among the plurality of detection information received from the wireless tag by the first information receiving unit.

  It should be noted that the above summary of the invention does not enumerate all the necessary features of the present invention. In addition, a sub-combination of these feature groups can also be an invention.

1 schematically illustrates an example of a system 100. An example of system 100 at the time of applying to management of goods 62 is shown roughly. An example of system 100 at the time of applying to management of bridge 64 is shown roughly. An example of functional composition of edge server 300 is shown roughly. An example of functional composition of edge server 400 is shown roughly. An example of the hardware constitutions of the computer 1000 which functions as the edge server 300 or the edge server 400 is shown schematically.

  Hereinafter, the present invention will be described through embodiments of the invention, but the following embodiments do not limit the invention according to the claims. In addition, not all the combinations of features described in the embodiments are essential for the solving means of the invention.

  FIG. 1 schematically illustrates an example of a system 100. The system 100 according to the present embodiment includes a plurality of relay devices arranged in each of a plurality of network hierarchies. The system 100 is provided by, for example, a telecommunications carrier.

  In FIG. 1, the system 100 includes an edge server 200 arranged in the network 20, a plurality of edge servers 300 arranged in the network hierarchy 30 lower than the network 20, and a network hierarchy 40 lower than the network hierarchy 30. The case where it has the some edge server 400 arrange | positioned is illustrated. The number of network layers included in the system 100 is not limited to this, and may be an arbitrary number. The edge server 200, the edge server 300, and the edge server 400 are examples of relay devices.

  In this example, the lower network layer 80 may conform to the first communication method, and the upper network layer 90 may conform to the second communication method that is more reliable than the first communication method. For example, the first communication method is a communication method that does not perform collision control, and the second communication method is a communication method that performs collision control. The first communication method may be, for example, so-called LoRa (Long-Range) and so-called 5G IoT (Internet of Thing). The second communication method may be, for example, LTE (Long Term Evolution), so-called 4G, so-called 5G, and so-called NB-IoT (Narrow Band IoT).

  In the system 100 according to the present embodiment, the edge server 400 receives object information regarding the object 60 transmitted according to a predetermined timing by the wireless tag 50 attached to the object 60. The object information is identification information for identifying the object 60, for example. The object information may be identification information for identifying the wireless tag 50 attached to the object 60. Then, the system 100 optimizes the information by the edge server 400, the edge server 300, and the edge server 200 that are arranged in a hierarchy, and, for example, connects the cloud network 10 to the communication terminal 600 of the user 610 that manages the object 60. Send through. The cloud network 10 is configured by the Internet or the like.

  The object 60 may be any object whose status is a management target. The wireless tag 50 being attached to the object 60 may be disposed on the outer surface of the object 60 or may be incorporated in the object 60.

  Conceptually transmitting information may conceptually mean transmitting only information necessary for the user 610. Further, it may be that information inappropriate for the user 610 is not transmitted. Further, only reliable information may be transmitted. Further, it may be that uncertain information is not transmitted. Further, only information appropriate for the user 610 may be transmitted. In addition, information unnecessary for the user 610 may not be transmitted.

  For example, after transmitting the information received from the wireless tag 50 to the edge server 300, the edge server 400 determines whether or not the state of the object 60 has changed based on the reception state of the information from the wireless tag 50. Only when there is a change, information is transmitted to the edge server 300. As an example, the edge server 400 may determine whether or not the status of the object 60 has changed based on the timing at which information is received from the wireless tag 50 and the period in which information is not received from the wireless tag 50.

  When information is transmitted to the edge server 400 using a communication method in which the wireless tag 50 does not perform collision control, the information transmitted by the wireless tag 50 may not reach the edge server 400. For example, transmission by the wireless tag 50 may fail a few times every 10 times.

  For example, in a situation where the edge server 400 receives the information transmitted by the wireless tag 50 every 10 minutes, if the information is not received 10 minutes after the information is received, the object 60 is moved to the edge server 400. There is a possibility that it has been moved out of the communication range and a possibility that communication has failed. Therefore, if information is not received 10 minutes after receiving the information, it is uncertain if it is immediately determined that the object 60 has moved out of the communication range with the edge server 400 and transmitted to the communication terminal 600. Will send a lot of information.

  The edge server 400 according to the present embodiment receives information for a predetermined period such as 30 minutes after receiving information in a situation where information transmitted by the wireless tag 50 is received every 10 minutes, for example. If not, it is determined that the object 60 has been moved out of the communication range with the edge server 400, and information is transmitted to the communication terminal 600. As a result, uncertain information can be prevented from being transmitted.

  In addition, for example, in a situation where the wireless tag 50 having a sensor transmits detection information detected by the sensor to the edge server 400 according to a predetermined timing, the edge server 400 is arranged in a plurality of ranges. When receiving detection information from the wireless tag 50, the edge server 400 may aggregate a plurality of detection information to generate aggregate information and transmit the aggregated information to the edge server 300. The sensor included in the wireless tag 50 may be any sensor. For example, the sensors included in the wireless tag 50 are a temperature sensor, a humidity sensor, a vibration sensor, an acceleration sensor, a gyro sensor, and the like. The detection information may be an example of object information.

  For example, when the difference between the pieces of detection information received from the plurality of wireless tags 50 is smaller than a predetermined threshold, the edge server 400 transmits the average value or the representative value of the plurality of pieces of detection information to the edge server 300 as aggregate information. . Further, for example, the edge server 400 groups detection information received from the plurality of wireless tags 50, and groups the detection information with a difference smaller than a predetermined threshold, and an average value or a representative value of the group, Aggregated information including detection information that does not belong to the group is generated and transmitted to the edge server 300. Further, for example, the edge server 400 generates aggregated information including only detection information indicating abnormality among the detection information received from the plurality of wireless tags 50, and transmits the aggregated information to the edge server 300. Accordingly, the amount of information transmitted to the communication terminal 600 can be appropriately reduced as compared with the case where all the detection information received from the plurality of wireless tags 50 is transmitted to the edge server 300.

  The edge server 400 may aggregate a plurality of detection information according to a preset aggregation condition. For example, the edge server 400 sets the aggregation condition in accordance with the instruction received from the communication terminal 600 via the network hierarchy higher than the network hierarchy 40 included in the system 100 and the cloud network 10. Thereby, for example, the user 610 can adjust the usage amount of the network resource by adjusting the aggregation condition. Note that the edge server 400 may set the aggregation condition according to the operation of the operator of the edge server 400 or the like.

  The edge server 400 may transmit the object information received and stored from the wireless tag 50 to the edge server 300 according to a preset timing. Arbitrary timings such as every minute, every hour, every day, every week, etc. may be set as the timing. The edge server 400 transmits information to the edge server 300 at the second timing when, for example, a change in the state of the object is detected between the first timing and the second timing that are continuous.

  For example, the edge server 400 sets the timing in accordance with an instruction received from the communication terminal 600 via the network hierarchy higher than the network hierarchy 40 included in the system 100 and the cloud network 10. Thereby, for example, the user 610 can adjust the usage amount of the network resource by adjusting the timing. Note that the edge server 400 may set the timing according to the operation of the operator of the edge server 400 or the like.

  As described above, according to the system 100 according to the present embodiment, the amount of information transmitted to the communication terminal 600 via the hierarchical network and the cloud network 10 can be appropriately reduced, and the network load is appropriately reduced. can do. In addition, when the user 610 is charged according to the amount of communication, the charge amount can be appropriately reduced.

  FIG. 2 schematically shows an example of the system 100 when applied to the management of the product 62. Here, an example will be described in which the product 62 is stored in the storage box 42 in the warehouse 32 and the flow of the storage box 42 mounted on the transport vehicle 32 and transported is managed. An edge server 400 is disposed in the storage box 42, and an edge server 300 is disposed in the warehouse 32 and the transport vehicle 36, respectively.

  The wireless tag 50 attached to the product 62 transmits identification information for identifying the product 62 in accordance with a predetermined timing. The edge server 400 receives and stores information transmitted by the wireless tag 50 in the storage box 42. When the edge server 400 determines that the status of the product 62 has changed, the edge server 400 transmits the stored information to the edge server 300. The edge server 400 may transmit the identification information of the edge server 400 or the storage box 42 to the network hierarchy 30 together.

  The edge server 300 stores the information received from the edge server 400 and transmits it to the edge server 200. The edge server 300 may transmit the identification information of the edge server 300 and the position information acquired by the GPS unit 33 to the edge server 200 together.

  For example, when the product 62 is stored in the storage box 42 and the identification information transmitted by the wireless tag 50 is first received, the edge server 400 determines that the product 62 has been stored. Then, the edge server 400 transmits the identification information of the product 62 that has been determined to have changed in status to the edge server 300. After the identification information of the product 62 is transmitted, the edge server 400 receives the identification information from the wireless tag 50 attached to the product 62 as long as the status of the product 62 does not change. Do not send information.

  The edge server 300 transmits, for example, the identification information of the product 62, the identification information of the storage box 42, the identification information of the edge server 300, and the content of the change to the communication terminal 600. Thereby, the user 610 can grasp that the product 62 is stored in the storage box 42 in the warehouse 32 in which the edge server 300 is arranged.

  The edge server 400 identifies the reception timing according to the reception status of receiving the identification information from the wireless tag 50, and is a determination that serves as a reference for determining whether the status of the product 62 has changed from the specified reception timing A reference period may be set. For example, when the identification information is received from the wireless tag 50 every 10 minutes, the edge server 400 sets a period of 30 minutes as the determination reference period. The edge server 400 determines that there is a change that the product 62 has been loaded from the storage box 42 when the identification information of the product 62 is not continuously received during the determination reference period. Then, the edge server 400 may transmit the identification information of the product 62 determined to have changed to the edge server 300.

  The edge server 300 transmits, for example, the identification information of the product 62, the identification information of the storage box 42, the identification information of the edge server 300, and the content of the change to the communication terminal 600. As a result, the user 610 can grasp that the product 62 has been shipped from the storage box 42 in the warehouse 32 in which the edge server 300 is arranged.

  The edge server 400 may communicate with a BLE (Bluetooth (registered trademark) Low Energy) unit 44 disposed in the storage box 42. The BLE unit 44 may acquire position information of the storage box 42 in the warehouse 32 by receiving information transmitted by the BLE unit 34 in the warehouse 32. The edge server 400 may transmit the position information of the storage box 42 received from the BLE unit 44 to the edge server 300.

  For example, the edge server 300 transmits the identification information and position information of the storage box 42 to the communication terminal 600. Thereby, the user 610 can grasp the position of the storage box 42 in the warehouse 32.

  The edge server 400 may transmit the position information after the change to the edge server 300 when the position of the storage box 42 is changed after the position information of the storage box 42 is transmitted to the edge server 300. For example, when the position of the storage box 42 is changed in the warehouse 32, the BLE unit 44 determines that the position of the storage box 42 has been changed by receiving information transmitted by another BLE unit 34. The position information after movement is acquired. Then, the edge server 400 transmits the moved position information to the edge server 300.

  For example, the edge server 300 transmits the identification information of the storage box 42 and the position information after movement to the communication terminal 600. Thereby, the user 610 can grasp that the storage box 42 has been moved, and after and after the movement.

  When the storage box 42 is mounted on the transport vehicle 36, the information transmitted by the edge server 400 is received by the edge server 300 in the transport vehicle 36. When the storage box 42 is mounted on the transport vehicle 36, the BLE unit 44 receives the information transmitted by the BLE unit 38 in the transport vehicle 36, thereby acquiring the position information of the storage box 42 in the transport vehicle 36. To do.

  Here, the edge server 400 determines that the position of the storage box 42 has changed, and obtains at least one of the identification information of the edge server 400 and the identification information of the storage box 42, and the position information of the storage box 42. Send to.

  For example, the edge server 300 transmits the identification information of the storage box 42, the position information of the storage box 42, and the identification information of the edge server 300 to the communication terminal 600. Accordingly, the user 610 can grasp that the storage box 42 is mounted in the transport vehicle 36 in which the edge server 300 is disposed and the position of the storage box 42 in the transport vehicle 36.

  The edge server 300 may transmit the position information acquired by the GPS unit 37 to the communication terminal 600 together. The edge server 300 may transmit the changed position information to the communication terminal 600 when the position information changes after transmitting the position information acquired by the GPS unit 37 to the communication terminal 600. .

  As described above, it is possible to appropriately reduce the consumption of network resources by adopting a configuration in which information is transmitted to the communication terminal 600 only when the status of the product 62, the storage box 42, and the transport vehicle 36 changes. .

  FIG. 3 schematically shows an example of the system 100 when applied to the management of the bridge 64. Here, the edge server 400 is arranged in each part of the bridge 64, and each of the wireless tags 50 each having a sensor transmits detection information detected by the sensor according to a predetermined timing. An example will be described in which information transmitted by the tag 50 is received, optimized, and transmitted to the communication terminal 600 via the edge server 200 and the cloud network 10.

  The sensor included in the wireless tag 50 may be, for example, a temperature sensor, a humidity sensor, and a vibration sensor. The sensor included in the wireless tag 50 may be a sensor that analyzes and outputs information detected by a temperature sensor, a humidity sensor, a vibration sensor, or the like. The sensor outputs, for example, the degree of deterioration of the part to which the wireless tag 50 is attached as an analysis result. The plurality of wireless tags 50 may have the same sensor, and each of the plurality of wireless tags 50 may have a different sensor. Here, a case where a plurality of wireless tags 50 have the same sensor will be mainly described as an example.

  The edge server 400 stores detection information received from each of the plurality of wireless tags 50. The edge server 400 may transmit the detection information to the edge server 200 when it is determined that the status of the part to which the wireless tag 50 is attached has changed based on the detection information.

  The edge server 400 transmits, for example, detection information received from the wireless tag 50 to the edge server 200, and then a difference between the transmitted detection information and detection information received thereafter from the wireless tag 50 is a predetermined threshold value. If it is smaller, the detection information is not transmitted. The edge server 400 transmits the detection information to the edge server 200 when the difference between the transmitted detection information and the detection information received after that from the wireless tag 50 is greater than a predetermined threshold.

  The edge server 400 may transmit the average value or the representative value of the detection information received from the plurality of wireless tags 50 to the edge server 200. The edge server 400 transmits the average value or the representative value to the edge server 200, and then the difference between the transmitted average value or the representative value and the average value or the representative value of the detection information received thereafter is determined based on a predetermined threshold. If it is smaller, the average value or representative value is not transmitted. When the difference between the transmitted average value or representative value and the average value or representative value of the detection information received thereafter is larger than a predetermined threshold, the edge server 400 sets the average value or representative value as an edge. Transmit to server 200.

  The edge server 400 stores a normal range of detection information, and does not transmit to the edge server 200 when the detection information received from the wireless tag 50 is within the normal range, but only when the detection information is outside the normal range. 200 may be transmitted.

  When the edge server 400 does not receive detection information from some of the plurality of wireless tags 50 and receives detection information from other wireless tags 50, the detection received from the other wireless tags 50. The detection information of the part of the wireless tags 50 may be supplemented using the information. For example, if the detection information can be received from the wireless tags 50 at both ends of the three adjacent wireless tags 50 and the detection information cannot be received from the central wireless tag 50 due to communication failure, the wireless tags 50 at both ends The average value of the detection information received from may be stored as detection information of the central wireless tag 50 and transmitted.

  FIG. 4 schematically shows an example of the functional configuration of the edge server 400. The edge server 400 includes an information reception unit 402, an information storage unit 404, a change determination unit 406, an information transmission unit 408, a timing setting unit 410, an information aggregation unit 412, and an aggregation condition setting unit 414. Note that it is not essential that the edge server 400 has all of these configurations. The edge server 400 may be an example of a first relay device.

  The information receiving unit 402 receives object information regarding the object transmitted according to a predetermined timing by the wireless tag 50 attached to the object. The information receiving unit 402 receives, for example, identification information of an object. The information receiving unit 402 receives detection information detected by a sensor included in the wireless tag 50, for example. The information receiving unit 402 may be an example of a first information receiving unit.

  The information storage unit 404 stores information received by the information reception unit 402. The information storage unit 404 may be an example of a first information storage unit.

  The change determination unit 406 determines whether or not there has been a change in the state of the object based on the reception state of the object information by the information reception unit 402. For example, the change determination unit 406 determines whether the information reception unit 402 receives the object information from the wireless tag 50 and the period in which the information reception unit 402 does not receive the object information from the wireless tag 50. Determine if the situation has changed.

  For example, the change determination unit 406 specifies the reception timing according to the reception status of receiving the object information from the wireless tag 50, and determines whether or not the status of the object has changed from the specified reception timing. Set the reference criterion period. Then, the change determination unit 406 determines that there has been a change in the state of the object when the period in which the object information is not received from the wireless tag 50 exceeds the determination reference period. Further, the change determination unit 406 determines that there is a change in the state of the object when, for example, the difference in the detection information received by the information reception unit 402 from the wireless tag 50 is greater than a predetermined threshold.

  The change determination unit 406 may store a determination reference period setting method, a predetermined threshold value, and the like in advance. Further, the change determination unit 406 may receive and store such information from the communication terminal 600 or the like via a network layer higher than the network layer 40, for example.

  When the change determination unit 406 determines that the state of the object has changed, the information transmission unit 408 displays the object information of the object stored in the information storage unit 404 higher than the edge server 400. To the network hierarchy. For example, the information transmission unit 408 transmits the object information to the edge server 300. The information transmission unit 408 may transmit the object information to the edge server 200.

  The timing setting unit 410 sets the timing at which the information transmission unit 408 transmits the object information stored in the information storage unit 404. The timing setting unit 410 may set the timing in accordance with an instruction received via a network layer higher than the network layer 40. The timing setting unit 410 sets the timing according to instructions received from the communication terminal 600 via the cloud network 10, the edge server 200, and the edge server 300, for example. Note that the timing setting unit 410 may set the timing according to the operation of the operator of the edge server 400 or the like.

  When the change determination unit 406 detects a change in the state of the object during successive timings set by the timing setting unit 410, the information transmission unit 408 performs object information on the object at the latter timing. May be transmitted to the edge server 300.

  The information aggregating unit 412 aggregates information stored in the information storage unit 404. For example, the information aggregating unit 412 aggregates a plurality of pieces of detection information stored in the information storage unit 404 to generate aggregated information. For example, the information aggregating unit 412 generates an average value or a representative value of a plurality of pieces of detection information as aggregated information. In addition, the information aggregating unit 412 generates aggregated information including only detection information indicating abnormality among the plurality of detection information.

  The aggregation condition setting unit 414 sets information aggregation conditions by the information aggregation unit 412. The aggregation condition setting unit 414 may set the aggregation condition according to the instruction received via the network layer higher than the network layer 40. For example, the aggregation condition setting unit 414 sets the aggregation condition according to instructions received from the communication terminal 600 via the cloud network 10, the edge server 200, and the edge server 300. Note that the aggregation condition setting unit 414 may set the aggregation condition in accordance with the operation of the operator of the edge server 400 or the like. The information aggregation unit 412 may aggregate the information stored in the information storage unit 404 in accordance with the aggregation condition set by the aggregation condition setting unit 414.

  FIG. 5 schematically shows an example of the functional configuration of the edge server 300. The edge server 300 includes an information reception unit 302, an information storage unit 304, a change determination unit 306, an information transmission unit 308, and a timing setting unit 310. Note that it is not essential that the edge server 300 has all these configurations. The edge server 300 may be an example of a second relay device.

  The information receiving unit 302 receives the information transmitted by the information transmitting unit 408. The information receiving unit 302 may be an example of a second information receiving unit.

  The information storage unit 304 stores the information received by the information reception unit 302. The information storage unit 304 may be an example of a second information storage unit.

  The change determination unit 306 determines whether or not the position of at least one of the edge server 400 and the edge server 300 has changed. The change determination unit 306 may determine whether or not the position of the edge server 400 has changed based on the position information received from the edge server 400 by the information reception unit 302. The change determination unit 306 may determine whether or not the position of the edge server 300 has changed based on the position information acquired from the GPS unit 37 disposed with the edge server 300. The change determination unit 306 may be an example of a second change determination unit.

  When the change determination unit 306 determines that the position of at least one of the edge server 400 and the edge server 300 has changed, the information transmission unit 308 displays the information stored in the information storage unit 304 more than the network hierarchy 30. Sent to an edge server located in the upper network hierarchy. The information transmission unit 308 may be an example of a second information transmission unit.

  The timing setting unit 310 sets the timing at which the information transmission unit 308 transmits the information stored in the information storage unit 304. The timing setting unit 310 may set the timing in accordance with an instruction received via a network layer higher than the network layer 30. The timing setting unit 310 sets the timing according to instructions received from the communication terminal 600 via the cloud network 10, the edge server 200, and the edge server 300, for example. Note that the timing setting unit 310 may set the timing according to the operation of the operator of the edge server 300 or the like.

  When the change determination unit 306 detects a change in the position of the edge server 300 or the edge server 400 during successive timings set by the timing setting unit 310, the information transmission unit 308 performs the post-movement operation at the latter timing. The position of the edge server 300 or the edge server 400 is transmitted to the edge server arranged in the network hierarchy higher than the network hierarchy 30.

  FIG. 6 schematically illustrates an example of a computer 1000 that functions as the edge server 300 or the edge server 400. The computer 1000 according to this embodiment includes a CPU peripheral unit having a CPU 1010 and a RAM 1030 that are connected to each other by a host controller 1092, a ROM 1020 that is connected to the host controller 1092 by an input / output controller 1094, a communication I / F 1040, and a hard disk drive 1050. And an input / output unit having an input / output chip 1080.

  The CPU 1010 operates based on programs stored in the ROM 1020 and the RAM 1030 and controls each unit. The communication I / F 1040 communicates with other devices via a network by wire or wireless. The communication I / F 1040 functions as hardware that performs communication. The hard disk drive 1050 stores programs and data used by the CPU 1010.

  The ROM 1020 stores a boot program executed when the computer 1000 is started up, a program depending on the hardware of the computer 1000, and the like. The input / output chip 1080 connects various input / output devices to the input / output controller 1094 via, for example, a parallel port, a serial port, a keyboard port, a mouse port, and the like.

  A program provided to the hard disk drive 1050 via the RAM 1030 is stored in a recording medium such as an IC card and provided by the user. The program is read from the recording medium, installed in the hard disk drive 1050 via the RAM 1030, and executed by the CPU 1010.

  A program installed in the computer 1000 and causing the computer 1000 to function as the edge server 400 may work on the CPU 1010 or the like to cause the computer 1000 to function as each unit of the edge server 400. The information processing described in these programs is read by the computer 1000, whereby the information receiving unit 402, the information storing unit 404, which are specific means in which the software and the various hardware resources described above cooperate. It functions as a change determination unit 406, an information transmission unit 408, a timing setting unit 410, an information aggregation unit 412, and an aggregation condition setting unit 414. And the specific edge server 400 according to the use purpose is constructed | assembled by implement | achieving the calculation or processing of the information according to the use purpose of the computer 1000 in this embodiment by these concrete means.

  A program that is installed in the computer 1000 and causes the computer 1000 to function as the edge server 300 may work on the CPU 1010 or the like to cause the computer 1000 to function as each unit of the edge server 300. The information processing described in these programs is read by the computer 1000, whereby the information receiving unit 302, the information storing unit 304, which are specific means in which the software and the various hardware resources described above cooperate. It functions as a change determination unit 306, an information transmission unit 308, and a timing setting unit 410. And the specific edge server 300 according to the intended purpose is constructed | assembled by implement | achieving the calculation or processing of the information according to the intended purpose of the computer 1000 in this embodiment by these specific means.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiment. It is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

  The order of execution of each process such as operations, procedures, steps, and stages in the apparatus, system, program, and method shown in the claims, the description, and the drawings is particularly “before” or “prior to”. It should be noted that it can be realized in any order unless the output of the previous process is used in the subsequent process. Regarding the operation flow in the claims, the description, and the drawings, even if it is described using “first,” “next,” etc. for convenience, it means that it is essential to carry out in this order. It is not a thing.

10 networks, 20 networks, 30 network layers, 32 warehouses, 33 GPS units, 34 BLE units, 36 transport vehicles, 37 GPS units, 38 BLE units, 40 network layers, 42 containment boxes, 44 BLE units, 50 wireless tags, 60 Object, 62 products, 64 bridge, 100 system, 200 edge server, 300 edge server, 302 information receiving unit, 304 information storing unit, 306 change determining unit, 308 information transmitting unit, 310 timing setting unit, 400 edge server, 402 Information receiving unit, 404 information storing unit, 406 change determining unit, 408 information transmitting unit, 410 timing setting unit, 412 information aggregating unit, 414 aggregation condition setting unit, 600 communication terminal, 1000 computer, 1010 CPU, 1020 ROM, 1030 RAM, 1040 Communication I / F, 1050 Hard disk drive, 1080 Input / output chip, 1092 Host controller, 1094 Input / output controller

Claims (10)

A first relay device arranged in a first network hierarchy;
A second relay device arranged in a second network layer higher than the first network layer,
The first relay device
A first information receiving unit that receives object information related to the object transmitted according to a predetermined timing by a wireless tag attached to the object;
A first information storage unit for storing the object information received by the first information reception unit;
A first change determination unit that determines whether there is a change in the status of the target object based on a reception status of the target information by the first information reception unit;
A first information transmission unit configured to transmit the object information of the object to the second relay device when it is determined by the first change determination unit that the state of the object has changed. . The second relay device is
A second information receiving unit for receiving information transmitted by the first information transmitting unit;
A second information storage unit for storing information received by the second information receiving unit;
A second change determination unit that determines whether or not the position of at least one of the first relay device and the second relay device has changed;
When the second change determination unit determines that the position has changed, the information stored in the second information storage unit is arranged in a third network layer higher than the second network layer. The system according to claim 1, further comprising: a second information transmission unit configured to transmit to the third relay device. The first information receiving unit receives the object information from the wireless tag using a first communication method,
The second information transmission unit transmits information stored in the second information storage unit to the third relay device by using a second communication method having higher reliability than the first communication method. The system according to claim 2.   The system according to claim 3, wherein the first communication method is a communication method that does not perform collision control, and the second communication method is a communication method that performs collision control.   The first change determination unit, based on a timing at which the first information receiving unit receives the object information from the wireless tag and a period in which the object information is not received from the wireless tag. The system according to any one of claims 1 to 4, wherein it is determined whether or not the situation has changed. The first relay device
A timing setting unit for setting a timing at which the first information transmission unit transmits the object information of the object to the second relay device;
The first information transmission unit, when the change is detected by the first change determination unit between a continuous first timing and a second timing set by the timing setting unit, The object information of the second relay device,
The system according to any one of claims 1 to 5, wherein the timing setting unit sets the timing according to an instruction received via the second network layer and the first network layer. The wireless tag has a sensor,
The first information receiving unit receives detection information detected by the sensor from the wireless tag,
The first information storage unit stores the detection information received by the first information reception unit,
The first relay device includes an information aggregating unit that aggregates a plurality of the detection information received from the plurality of radio tags by the first information receiving unit, and generates aggregated information,
The system according to any one of claims 1 to 6, wherein the first information transmission unit transmits the aggregated information generated by the information aggregation unit to the second relay device. The first change determination unit determines whether there is a change in the state of the object based on the detection information received by the first information reception unit,
The said 1st information transmission part transmits the said aggregation information to a said 2nd relay apparatus, when it determines with the condition of the said object having changed by the said 1st change determination part. system. The information aggregating unit aggregates the plurality of detection information according to a preset aggregation condition,
The first relay device further includes an aggregation condition setting unit that sets the aggregation condition,
The system according to claim 7 or 8, wherein the aggregation condition setting unit sets the aggregation condition according to an instruction received via the second network hierarchy and the first network hierarchy.   The said information aggregation part produces | generates the said aggregation information containing only the said detection information which shows abnormality among the said some detection information which the said 1st information receiving part received from the said radio | wireless tag, Any of Claim 7-9 A system according to claim 1.

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