JP2016173762A - Information processing system, electronic tag, and calibration value calculation method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information processing system for properly calibrating environment information, an electronic tag, and a calibration value calculation method.SOLUTION: An information processing system includes: an environment information detection section 509 which periodically detects first environment information in the vicinity of an electronic tag 50; a first determination section 511 which determines whether the environment of the space where the electronic tag 50 is located satisfies a predetermined condition or not; a second determination section 513 which determines, when the predetermined condition is satisfied, whether a difference between the latest first environment information and the previous first environment information is equal to or less than a first threshold or not; a calibration-enabled state information transmission section 505 which transmits calibration-enabled state information to a repeater 30 when the difference is equal to or less than the first threshold; an environment information receiving section 507 which receives second environment information detected by an environment control apparatus 40, from the repeater 30; and a calibration value calculation section 517 which calculates a calibration value, on the basis of the second environment information and the first environment information. The environment information detection section 509 calibrates the first environment information by use of the calibration value.SELECTED DRAWING: Figure 11

Description

  The present invention relates to an information processing system, an electronic tag, and a calibration value calculation method.

  2. Description of the Related Art Conventionally, in fields such as distribution and distribution, a technique for managing the environment around an article using an electronic tag (IC tag) such as an RFID (Radio Frequency IDentification) tag attached to the article is known.

  For example, in Patent Document 1, a reader / writer having a temperature sensor calibrates a temperature measured by the temperature sensor with a temperature measured by a highly accurate temperature sensor of another reader / writer, and the calibrated temperature is an IC tag. Techniques for writing to are disclosed.

  However, in the conventional technology as described above, there is no mention of under what conditions the temperature is calibrated, so there is a possibility that the temperature cannot be calibrated correctly. For example, the temperature cannot be correctly calibrated under a condition where there is a temperature difference between the location where the temperature sensor is located and the location where the highly accurate temperature sensor is located.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide an information processing system, an electronic tag, and a calibration value calculation method capable of correctly calibrating environmental information.

  In order to solve the above-described problems and achieve the object, an information processing system according to an aspect of the present invention is an information processing system including a plurality of electronic tags and a relay device, and each of the plurality of electronic tags is An environment information detection unit that periodically detects first environment information that is environment information around the electronic tag, and a first that determines whether or not an environment in a space where the electronic tag is located satisfies a predetermined condition. And a second determination unit that determines whether or not a difference between the latest first environment information and the previous first environment information is equal to or less than a first threshold when the predetermined condition is satisfied. And a calibratable state information transmitting unit that transmits calibratable state information indicating that the state is calibratable to the relay device if the first threshold value or less, and after transmitting the calibratable state information, the relay Placed in the space from the device Based on the environment information receiving unit that receives the second environment information that is the environment information detected by the environment control device, the second environment information, and the first environment information before receiving the second environment information. A calibration value calculation unit that calculates a calibration value for calibrating the first environment information detected by the environment information detection unit, the environment information detection unit using the calibration value The relay device calibrates environment information, the relay device receives a calibratable state information from each of the plurality of electronic tags, and the number of calibratable state information received becomes a second threshold value. An environmental information transmission unit that acquires the second environmental information from the environmental control device and transmits the second environmental information to the plurality of electronic tags.

  According to the present invention, there is an effect that environmental information can be correctly calibrated.

FIG. 1 is a block diagram illustrating an example of the configuration of the information processing system according to the present embodiment. FIG. 2 is a diagram illustrating an example of an arrangement in the transport container according to the present embodiment. FIG. 3 is a block diagram illustrating an example of a hardware configuration of the environment control apparatus according to the present embodiment. FIG. 4 is a block diagram illustrating an example of a hardware configuration of the relay device according to the present embodiment. FIG. 5 is a block diagram illustrating an example of a hardware configuration of the electronic tag according to the present embodiment. FIG. 6 is a block diagram illustrating an example of a hardware configuration of the information processing apparatus according to the present embodiment. FIG. 7 is a diagram illustrating an example of calibration control information registered in the information processing apparatus. FIG. 8 is a diagram illustrating an example of order information according to the present embodiment. FIG. 9 is a diagram illustrating an example of shipping information according to the present embodiment. FIG. 10 is a diagram illustrating an example of delivery information according to the present embodiment. FIG. 11 is a block diagram illustrating an example of functional configurations of the information processing apparatus, the relay apparatus, the environment control apparatus, and the electronic tag according to the present embodiment. FIG. 12 is a diagram illustrating an example of calibration control information to which the product number of the present embodiment is added. FIG. 13 is a diagram illustrating an example of environment control information according to the present embodiment. FIG. 14 is a diagram illustrating an example of calibration condition information according to the present embodiment. FIG. 15 is a diagram illustrating an example of the temperature transition of the present embodiment. FIG. 16 is a diagram illustrating an example of the temperature transition of the present embodiment. FIG. 17 is a diagram illustrating an example of the calibration condition information after the update according to the present embodiment. FIG. 18 is a diagram illustrating an example of the calibration control information after the update according to the present embodiment. FIG. 19A is a flowchart illustrating an example of a procedure flow of processing performed in the information processing system according to the present embodiment. FIG. 19B is a flowchart illustrating an example of a flow of a process performed in the information processing system according to the present embodiment. FIG. 20A is a flowchart illustrating an example of a flow of a process performed in the information processing system according to the second modification. FIG. 20B is a flowchart illustrating an example of a flow of a process performed in the information processing system according to the second modification. FIG. 21 is a block diagram illustrating an example of functional configurations of the relay device and the electronic tag according to the third modification. FIG. 22A is a flowchart illustrating an example of a flow of a process performed in the information processing system according to the third modification. FIG. 22B is a flowchart illustrating an example of a flow of a process performed by the information processing system according to the third modification.

  Hereinafter, embodiments of an information processing system, an electronic tag, and a calibration value calculation method according to the present invention will be described in detail with reference to the accompanying drawings. In the following embodiments, a plurality of articles each provided with an electronic tag are arranged in a transport container, and the temperature of each article placed in the transport container is written in each electronic tag by writing the temperature around the electronic tag. A method for calibrating the temperature written in the electronic tag when managing the electronic tag will be described, but the present invention is not limited to this.

  FIG. 1 is a block diagram illustrating an example of the configuration of the information processing system 1 according to the present embodiment. As shown in FIG. 1, the information processing system 1 includes an information processing apparatus 10, a recipient terminal 21, a sender terminal 22, a deliverer terminal 23, relay apparatuses 30-1 and 30-2, and environmental control. Device 40 and electronic tags 50-1 to 50-n (n is an integer of 2 or more).

  The information processing apparatus 10, the recipient terminal 21, the sender terminal 22, the deliverer terminal 23, and the relay apparatuses 30-1 and 30-2 are connected via the network 2. Examples of the network 2 include the Internet and a LAN (Local Area Network). The network 2 may be a wired network or a wireless network.

  The relay devices 30-1 and 30-2 are configured to be wirelessly connectable to the environment control device 40 and the electronic tags 50-1 to 50-n. In the present embodiment, the relay devices 30-1 and 30-2 are connected to the environment control device 40 and the electronic tags 50-1 to 50-n by near field communication such as RFID (Radio Frequency IDentification) as an example. However, the present invention is not limited to this.

  In the following description, when it is not necessary to distinguish between the relay devices 30-1 and 30-2, they are simply referred to as the relay device 30, and when it is not necessary to distinguish between the electronic tags 50-1 to 50-n, It may be simply referred to as an electronic tag 50.

  In the present embodiment, the relay devices 30-1 and 30-2, the environment control device 40, and the electronic tags 50-1 to 50-n are disposed in the transport container. FIG. 2 is a diagram illustrating an example of an arrangement in the transport container according to the present embodiment. As shown in FIG. 2, the environment control device 40 is disposed in the transport container, and the relay devices 30-1 and 30-2 are disposed at positions where wireless communication with the environment control device 40 is possible. In addition, each article provided with the electronic tag 50 is arranged in alignment with a position where any one of the relay devices 30 arranged in the transport container and the electronic tag 50 can perform wireless communication.

  The environment control device 40 controls the temperature in the transport container, and examples thereof include an air conditioner. FIG. 3 is a block diagram illustrating an example of a hardware configuration of the environment control apparatus 40 according to the present embodiment. As shown in FIG. 3, the environment control device 40 includes a control device 41 such as a CPU (Central Processing Unit), a main storage device 42 such as a ROM (Read Only Memory) and a RAM (Random Access Memory), and an HDD (Hard). An auxiliary storage device 43 such as a disk drive or SSD (Solid State Drive), a temperature sensor 44 that detects temperature, a communication device 45 that is a communication interface for wireless communication with the relay device 30, and a temperature increase And a heating / cooling device 46 for performing a heating / cooling operation for lowering the temperature.

  The relay device 30 relays communication between the electronic tag 50 and the information processing device 10 and controls temperature calibration by the electronic tag 50, and examples include a reader / writer device. FIG. 4 is a block diagram illustrating an example of a hardware configuration of the relay device 30 according to the present embodiment. As shown in FIG. 4, the relay device 30 includes a control device 31 such as a CPU, a main storage device 32 such as a ROM and a RAM, an auxiliary storage device 33 such as an HDD and an SSD, an environment control device 40 and an electronic tag 50. A first communication device 34 that is a communication interface for wireless communication with the communication device 2 and a second communication device 35 that is a communication interface for communication via the network 2. Note that the relay device 30 may include a display device such as a display and an input device such as a touch panel as necessary.

  The electronic tag 50 stores the temperature around the electronic tag 50 and is used to manage the temperature around the article to which the electronic tag 50 is attached. Examples thereof include an RFID tag. FIG. 5 is a block diagram illustrating an example of a hardware configuration of the electronic tag 50 of the present embodiment. As illustrated in FIG. 5, the electronic tag 50 includes a control device 51 such as a CPU, a main storage device 52 such as a ROM and a RAM, an auxiliary storage device 53 such as a nonvolatile memory, and a display device 54 such as electronic paper. A temperature sensor 55 that detects the temperature, and a communication device 56 that is a communication interface for wireless communication with the relay device 30.

  In the present embodiment, when the temperature sensor 55 provided in the electronic tag 50 and the temperature sensor 44 provided in the environment control device 40 are compared, the temperature sensor 44 is assumed to have higher temperature detection accuracy.

  The information processing apparatus 10 manages the delivery of each item to which the electronic tag 50 is attached, the temperature calibration value written in the electronic tag 50, and the like, and includes a computer such as a server apparatus. FIG. 6 is a block diagram illustrating an example of a hardware configuration of the information processing apparatus 10 according to the present embodiment. As illustrated in FIG. 6, the information processing apparatus 10 includes a control device 11 such as a CPU, a main storage device 12 such as a ROM and a RAM, an auxiliary storage device 13 such as an HDD and an SSD, and a display device 14 such as a display. , An input device 15 such as a mouse, a keyboard, or a touch panel, and a communication device 16 that is a communication interface for communication via the network 2, and has a hardware configuration using a normal computer.

  The recipient terminal 21 is a terminal device used by a goods recipient, and examples thereof include a PC (Personal Computer), a tablet terminal, and a smartphone. The shipper terminal 22 is a terminal device used by a shipper of goods, and examples thereof include a PC, a tablet terminal, and a smartphone. The deliverer terminal 23 is a terminal device used by an article delivery company, and examples thereof include a PC, a tablet terminal, and a smartphone.

  In the present embodiment, the delivery company prepares the electronic tag 50. When the delivery company receives the electronic tag 50, the delivery company writes calibration control information for calibrating the temperature to the electronic tag 50 and registers the calibration control information in the information processing apparatus 10. The calibration control information may be written to the electronic tag 50 using a relay device 30 or a reader / writer device different from the relay device 30. Further, the registration of the calibration control information to the information processing apparatus 10 may be performed from the deliverer terminal 23.

  FIG. 7 is a diagram illustrating an example of calibration control information registered in the information processing apparatus 10. In the example illustrated in FIG. 7, the calibration control information includes an ID, an allowable range, a determination temperature, a calibration allowable value, and a calibration value, but is not limited thereto.

  ID is an identifier of the electronic tag 50. The allowable range indicates the temperature range in which the calibration determination process for determining whether or not calibration is possible is performed. Specifically, the temperature setting value set by the shipping company ± the value of the allowable range is This is an acceptable range. In the example illustrated in FIG. 7, the allowable range is a temperature setting value of −1 ° C. to a temperature setting value of + 1 ° C. The determination temperature is a temperature difference that is determined to be calibrated by the calibration determination process. In the example shown in FIG. 7, if the temperature difference between the latest temperature and the previous temperature is 0.1 ° C. or less, it is determined that calibration is possible. The calibration tolerance value is an absolute value of the tolerance value of the calibration value. If the absolute value of the calculated calibration value exceeds the tolerance value, a calibration error occurs. The calibration value is a calibration value of the temperature written in the electronic tag 50, and the initial value is zero.

  The recipient terminal 21 transmits the item order information to the sender terminal 22. FIG. 8 is a diagram illustrating an example of order information according to the present embodiment. In the example illustrated in FIG. 8, the order information includes the product number of the article, the number of orders, and the delivery date and time, but is not limited thereto.

  The shipper terminal 22 transmits the shipment information of the article to the deliverer terminal 23 based on the order information transmitted from the recipient terminal 21. FIG. 9 is a diagram illustrating an example of shipping information according to the present embodiment. In the example illustrated in FIG. 9, the shipping information includes the product number of the article, the number of orders, the delivery date and time, the shipping destination, the shipping source, the necessity of environmental control, the control environment, and the setting value, but is not limited thereto. It is not a thing. The product number, the number of orders, and the delivery date and time are those described in the order information. The necessity of environmental control indicates whether or not environmental control in the shipping container is necessary during the delivery of the article in the shipping container. The control environment indicates an environment to be controlled. The set value indicates a value for controlling the environment to be controlled. In the example shown in FIG. 9, since the environmental control necessity “necessary”, the control environment “temperature”, and the set value “−20” are set, the temperature in the transportation container is set to −20 ° C. during the delivery of the goods in the transportation container. Need to control.

  Based on the shipping information transmitted from the shipper terminal 22, the deliverer terminal 23 transmits the article delivery information to the information processing apparatus 10 and registers it. FIG. 10 is a diagram illustrating an example of delivery information according to the present embodiment. In the example shown in FIG. 10, the delivery information includes the product number of the article, the number of orders, the delivery date and time, the shipping destination, the shipping source, the necessity of environmental control, the control environment, the set value, and the presence / absence of calibration. It is not limited. The product number, order quantity, delivery date / time, shipping destination, shipping source, necessity of environmental control, control environment, and set value of the article are described in the shipping information. The presence / absence of calibration indicates the presence / absence of calibration of the control environment.

  Then, the shipping company receives the electronic tag 50 from the shipping company, and writes the product number of the article to which the electronic tag 50 is attached to the electronic tag 50. The product number may be written to the electronic tag 50 using a relay device 30 or a reader / writer device different from the relay device 30. In addition, the delivery company receives an article to which the electronic tag 50 is attached from the shipping company, arranges the article in the shipping container as shown in FIG. 2, and delivers the shipping container to the receiving company by using the transportation vehicle.

  Under the above premise, the functional configurations of the information processing apparatus 10, the relay apparatus 30, the environment control apparatus 40, and the electronic tag 50 will be described. FIG. 11 is a block diagram illustrating an example of functional configurations of the information processing apparatus 10, the relay apparatus 30, the environment control apparatus 40, and the electronic tag 50 according to the present embodiment.

  As illustrated in FIG. 11, the information processing apparatus 10 includes a storage unit 101 and a communication unit 103. The storage unit 101 can be realized by, for example, the auxiliary storage device 13, and the communication unit 103 can be realized by, for example, the control device 11, the main storage device 12, and the communication device 16. For the above-mentioned assumption, the storage unit 101 stores calibration control information (see FIG. 7) and delivery information (see FIG. 10).

  Further, as illustrated in FIG. 11, the relay device 30 includes a communication unit 301. The communication unit 301 includes a proofreadable state information receiving unit 303 and an environment information transmitting unit 305. The communication unit 301 can be realized by, for example, the control device 31, the main storage device 32, the first communication device 34, and the second communication device 35.

  As illustrated in FIG. 11, the environment control device 40 includes a communication unit 401, an environment information detection unit 403, and an environment control unit 405. The communication unit 401 can be realized by, for example, the control device 41, the main storage device 42, and the communication device 45, and the environment information detection unit 403 can be realized by, for example, the control device 41, the main storage device 42, and the temperature sensor 44, The environment control unit 405 can be realized by the control device 41, the main storage device 42, and the heating / cooling device 46, for example.

  As shown in FIG. 11, the electronic tag 50 includes a storage unit 501, a communication unit 503, an environment information detection unit 509, a first determination unit 511, a second determination unit 513, and a calibration value calculation. Part 517. The communication unit 503 includes a proofreadable state information transmission unit 505 and an environment information reception unit 507. The storage unit 501 can be realized by, for example, the auxiliary storage device 53, the communication unit 503 can be realized by, for example, the control device 51, the main storage device 52, and the communication device 56, and the environment information detection unit 509 can be realized by, for example, the control device 51, the main storage device 52, and the temperature sensor 55. The first determination unit 511, the second determination unit 513, and the calibration value calculation unit 517 can be realized by the control device 51 and the main storage device 52, for example. . For the above-mentioned assumption, the storage unit 501 stores calibration control information to which a product number is added as shown in FIG.

  As shown in FIG. 2, the communication unit 301 of the relay device 30 instructs the electronic tag 50 to read the ID and product number when an article to which the electronic tag 50 is attached is placed in the transport container. The communication unit 503 of the electronic tag 50 acquires the ID and product number from the storage unit 501 and passes them to the relay device 30. Then, the communication unit 301 of the relay device 30 transmits the read ID and product number to the information processing device 10.

  The communication unit 103 of the information processing device 10 receives the ID and product number from the relay device 30 and acquires a delivery information record including the product number from the delivery information stored in the storage unit 101 (see FIG. 10). As shown in FIG. 13, the necessity of environmental control, the control environment, the set value, and the presence / absence of calibration are extracted, and the received ID is associated. Hereinafter, a set of ID, necessity of environmental control, control environment, set value, and presence / absence of calibration is collectively referred to as environment control information. Then, the communication unit 103 transmits the environmental control information to the relay device 30.

  The communication unit 301 of the relay device 30 receives the environment control information from the information processing device 10, notifies the environment control device 40, extracts an ID from the environment control information, and sends the environment tag to the electronic tag 50 indicated by the ID. Notify control information. The notification of the environmental control information to the environmental control device 40 does not have to be performed every time the environmental control information is received from the information processing apparatus 10, but may be performed at the time of the first reception.

  Upon receiving the notification from the relay device 30, the communication unit 401 of the environmental control device 40 checks whether the environmental control necessity is “necessary”, and if it is “necessary”, the environmental information detection unit 403 The environment information of the control environment is periodically detected, and the environment control unit 405 controls the environment so that the environment information becomes a set value while referring to the environment information detected by the environment information detection unit 403. In the case of the environmental control information shown in FIG. 13, the environmental information detection unit 403 periodically detects the temperature in the transport container, and the environmental control unit 405 detects that the temperature detected by the environmental information detection unit 403 is −20 ° C. Control the temperature in the shipping container to be.

  Upon receiving the notification from the relay device 30, the communication unit 503 of the electronic tag 50 stores the setting value in association with the calibration control information to which the product number has been added in the storage unit 501 as illustrated in FIG. 14. Hereinafter, a set of a product number, a set value, and calibration control information (ID, allowable range, determination temperature, calibration allowable value, and calibration value) is collectively referred to as calibration condition information. In addition, the communication unit 503 checks whether the presence / absence of calibration is “present”. If “yes”, the communication unit 503 instructs the environment information detection unit 509 to start the calibration determination process.

  When the start of the calibration determination process is instructed, the environment information detection unit 509 periodically detects the first environment information that is the environment information around itself (the electronic tag 50), and calibrates using the calibration value. . In the case of the calibration condition information shown in FIG. 14, the environment information detection unit 509 periodically detects the temperature around itself in the transport container. In the present embodiment, the environment information detection unit 509 stores in the storage unit 501 a temperature obtained by adding the calibration value (0) to the detected temperature. The storage unit 501 includes at least a temperature at which the calibration value (0) is added to the latest temperature and a temperature at which the calibration value (0) is added to the previous temperature detected by the environment information detection unit 509. It shall be remembered.

  The first determination unit 511 determines whether the environment of the space in which the first (electronic tag 50) is located satisfies a predetermined condition. Specifically, the first determination unit 511 determines whether or not the latest first environment information detected by the environment information detection unit 509 is within a predetermined range.

  In the case of the calibration condition information shown in FIG. 14, the predetermined range is −19 (set value + allowable range) ° C. to −21 (set value−allowable range) ° C., and the first determination unit 511 is the environment information detection unit 509. It is determined whether or not the temperature obtained by adding the calibration value (0) to the latest temperature detected by the step is within a range of −19 ° C. to −21 ° C.

  When the temperature control by the environment control device 40 is started, the temperature detected by the environment information detection unit 509 and the temperature to which the calibration value (0) is added transitions as shown in FIG. 15, the first determination unit 511 At the time of 3/20 10:06, the temperature obtained by adding the calibration value (0) to the latest temperature detected by the environment information detection unit 509 is determined to be within −19 ° C. to −21 ° C.

  When the first determination unit 511 determines that the predetermined condition is satisfied, the second determination unit 513 detects the latest first environment information detected by the environment information detection unit 509 and the previous first environment information. It is determined whether or not the difference is less than or equal to the first threshold value. Specifically, when the first determination unit 511 determines that the second determination unit 513 is within a predetermined range, the second determination unit 513 detects the latest first environment information detected by the environment information detection unit 509 and the first previous time. It is determined whether or not the difference from the environmental information is equal to or less than the first threshold value.

  In the case of the calibration condition information shown in FIG. 14, the first threshold value is 0.1 (determination temperature) ° C., and the second determination unit 513 sets the calibration value to the latest temperature detected by the environment information detection unit 509 ( It is determined whether or not the difference between the temperature at which 0) is added and the temperature at which the calibration value (0) is added to the previous temperature detected by the environment information detection unit 509 is 0.1 or less.

  After the temperature obtained by adding the calibration value (0) to the latest temperature detected by the environment information detection unit 509 is within −19 ° C. to −21 ° C. and determined by the first determination unit 511, the environment information detection unit 509 , And the temperature at which the calibration value (0) is added transitions as shown in FIG. In this case, the second determination unit 513 includes the temperature obtained by adding the calibration value (0) to the latest temperature detected by the environment information detection unit 509 at the time of 3/20 10:09, and the environment information detection unit. It is determined that the difference between the temperature detected by 509 and the temperature at which the calibration value (0) is added to the previous temperature is 0.1 or less.

  Thereby, the calibration determination process in the electronic tag 50 is completed, and it is determined that the electronic tag 50 can be calibrated. However, the detection of the first environment information by the environment information detection unit 509 is continued.

  When the second determination unit 513 determines that the calibratable state information transmission unit 505 is equal to or less than the first threshold value, the calibratable state information transmission unit 505 transmits calibratable state information indicating that the calibration is possible to the relay device 30.

  The calibratable state information receiving unit 303 of the relay device 30 receives calibratable state information from each of the electronic tags 50-1 to 50-n.

  The environment information transmitting unit 305 of the relay device 30 receives the environment control device 40 from the environment control device 40 when the number of calibratable state information received by the calibratable state information reception unit 303 reaches the second threshold. 2nd environmental information which is the environmental information detected by this is acquired, and it transmits to each of the electronic tags 50-1 to 50-n.

  In the present embodiment, the second threshold value is n, but is not limited to this. In other words, in this embodiment, the environment information transmitting unit 305 receives the calibratable state information from all the electronic tags 50-1 to 50-n by the calibratable state information receiving unit 303, and transmits the environment control device 40 from the environment control device 40. The temperature detected by 40 is acquired and transmitted to each of the electronic tags 50-1 to 50-n.

  The environment information receiving unit 507 of the electronic tag 50 receives the second environment information detected by the environment control device 40 from the relay device 30 after the calibratable state information transmitting unit 505 transmits the calibratable state information. . In the present embodiment, the environment information receiving unit 507 receives the temperature detected by the environment control device 40 from the relay device 30.

  The calibration value calculation unit 517 is detected by the environment information detection unit 509 based on the second environment information received by the environment information reception unit 507 and the first environment information before reception of the second environment information. A calibration value for calibrating the first environment information is calculated, and the calibration value stored in the storage unit 501 is updated.

  In this embodiment, the calibration value calculation unit 517 calculates the difference between the temperature received by the environment information reception unit 507 and the temperature obtained by adding the calibration value (0) to the latest temperature stored in the storage unit 501. Calibration value. For example, when the temperature received by the environment information receiving unit 507 is −20.2 ° C., and the temperature obtained by adding the calibration value (0) to the latest temperature stored in the storage unit 501 is −20 ° C., The calibration value is −0.2 ° C. (−20.2 ° C. + 20 ° C.).

  In the case of the calibration condition information shown in FIG. 14, the calibration value calculation unit 517 compares the calculated calibration value (−0.2) with the absolute value of the calibration tolerance and confirms that it is less than or equal to the absolute value of the calibration tolerance. Then, as shown in FIG. 17, the calibration value of the calibration condition information is updated, and a flag indicating that calibration has been completed is set.

  Thereby, since the environment information detection unit 509 calibrates the detected temperature using the calibration value (−0.2) thereafter, the detected temperature can be calibrated correctly.

  The communication unit 503 acquires the ID and the calibration value from the storage unit 501 and passes the ID and the calibration value to the relay device 30, and the communication unit 301 of the relay device 30 transmits the ID and the calibration value to the information processing device 10 to process the information. The communication unit 103 of the device 10 receives the ID and the calibration value from the relay device 30, and in the calibration control information (see FIG. 7) stored in the storage unit 101, a record including the received ID as shown in FIG. Update the calibration value to the received calibration value.

  FIG. 19A and FIG. 19B are flowcharts illustrating an example of a flow of a process performed in the information processing system 1 of the present embodiment.

  First, the communication unit 301 of the relay device 30 instructs the electronic tag 50 to read the ID and product number (information transmission), and the communication unit 503 of the electronic tag 50 receives the ID and product number (tag) from the storage unit 501. Information) is acquired and passed to the relay device 30 (steps S101 to S107).

  Subsequently, the communication unit 301 of the relay device 30 transmits the read ID and product number to the information processing device 10, and the communication unit 103 of the information processing device 10 receives the ID and product number from the relay device 30 and stores them. The delivery information record including the product number is acquired from the delivery information stored in the unit 101, the necessity of environmental control, the control environment, the set value, and the presence / absence of calibration are extracted, and the received ID is associated with the environment. Control information is transmitted to the relay device 30 (steps S109 to S115).

  Subsequently, the communication unit 301 of the relay device 30 receives the environment control information from the information processing device 10 and notifies the environment control device 40, and the communication unit 401 of the environment control device 40 notifies the notification from the relay device 30. If it is received, it is confirmed whether the environmental control necessity is “necessary”. If it is “necessary”, the environmental information detection unit 403 periodically detects the environmental information of the control environment, and the environmental control unit 405. Refers to the environment information detected by the environment information detection unit 403, and controls the environment so that the environment information becomes a set value (steps S117 to S121). Then, the communication unit 401 sets the environment control information and notifies the relay device 30 that environment control has been started, and the communication unit 301 of the relay device 30 receives that fact (steps S123 to S125).

  Subsequently, the communication unit 301 of the relay device 30 notifies the electronic tag 50 of the environmental control information received from the information processing device 10, and the communication unit 503 of the electronic tag 50 receives the notification from the relay device 30 and receives the product. The calibration control information to which the number is added is associated with the set value as calibration condition information, which is stored in the storage unit 501 and whether or not calibration is present is checked (steps S127 to S131). If the presence / absence of calibration is not “present” (No in step S131), the process ends.

  If the presence / absence of calibration is “present” (Yes in step S131), the environment information detection unit 509 detects the temperature (sensor temperature) around itself in the transport container, and sets the calibration value (0) to the detected temperature. The added temperature is stored in the storage unit 501 (step S133).

  Subsequently, the first determination unit 511 determines whether or not the temperature detected by the environment information detection unit 509 is within a predetermined range (set temperature) (step S135), and if not within the predetermined range (in step S135). No), it returns to step S133.

  Subsequently, when the first determination unit 511 determines that the second determination unit 513 is within the predetermined range (Yes in step S135), the second determination unit 513 calculates the latest temperature and the previous temperature detected by the environment information detection unit 509. It is determined whether or not the difference is equal to or less than the first threshold (determination temperature) (step S137). If not less than the first threshold (No in step S137), the process returns to step S133.

  Subsequently, when the second determination unit 513 determines that the calibratable state information transmission unit 505 is equal to or less than the first threshold value (Yes in step S137), the calibratable state information indicating that the calibratable state is present. Is transmitted to the relay device 30 (step S139), and the calibratable state information receiving unit 303 of the relay device 30 receives the calibratable state information from the electronic tag 50 (step S141).

  Subsequently, the environment information transmitting unit 305 of the relay device 30 determines whether or not the calibratable state information receiving unit 303 has received the calibratable state information from all the electronic tags 50-1 to 50-n (step S143). If not received (No in step S143), the process returns to step S133.

  Subsequently, when the proofreadable state information receiving unit 303 receives the proofreadable state information from all the electronic tags 50-1 to 50-n (Yes in step S143), the environment information transmitting unit 305 receives the proofreadable state information from the environment control device 40. The temperature (temperature information) detected by the environmental control device 40 is acquired and transmitted to each of the electronic tags 50-1 to 50-n (steps S145 to S153).

  Subsequently, the environment information receiving unit 507 of the electronic tag 50 receives the temperature detected by the environment control device 40 from the relay device 30, and the calibration value calculation unit 517 receives the temperature received by the environment information receiving unit 507. The difference between the latest temperature stored in the storage unit 501 and the temperature obtained by adding the calibration value (0) is used as a calibration value, and compared with the absolute value (reference value) of the calibration allowable value of the calibration condition information (step) S155 to S159). If it is not less than the absolute value of the calibration tolerance (No in step S159), an error message is displayed on the display device 54 (step S161). On the other hand, when it is below the absolute value of the calibration allowable value (Yes in step S159), the process of step S161 is not performed.

  Subsequently, the communication unit 503 of the electronic tag 50 acquires the ID and the calibration value (calibration information) from the storage unit 501, and passes them to the relay device 30, and the communication unit 301 of the relay device 30 receives the ID and the calibration value. The communication unit 103 of the information processing apparatus 10 receives the ID and the calibration value from the relay apparatus 30 and transmits the calibration including the received ID in the calibration control information stored in the storage unit 101. The value is updated to the received calibration value (steps S163 to S171).

  As described above, according to this embodiment, after the temperature of the space where the electronic tag is located becomes uniform, each electronic tag calculates a calibration value and calibrates the detected temperature. It can be calibrated correctly.

  In particular, according to the present embodiment, the calibration value of the electronic tag is calculated not in the state for calculating the calibration value but in a state where it is actually used, so that the electronic tag cannot be used because it has not been calibrated. And can be operated with a minimum number of electronic tags.

(Modification 1)
In the above embodiment, the predetermined condition determined by the first determination unit is set as whether or not the latest first environment information detected by the environment information detection unit is within the predetermined range. However, the latest condition detected by the environment control device is It may be determined whether the second environment information is within a predetermined range.

  In this case, the environment information transmission unit 305 of the relay device 30 periodically acquires the second environment information detected by the environment control device 40 from the environment control device 40, transmits the second environment information to each electronic tag 50, and electronic The environment information receiving unit 507 of the tag 50 periodically receives the second environment information detected by the environment control device 40 from the relay device 30. Then, the first determination unit 511 of the electronic tag 50 determines whether or not the latest second environment information detected by the environment control device 40 is within a predetermined range, and the second determination unit 513 is within the predetermined range. In this case, it may be determined whether or not the difference between the latest first environment information detected by the environment information detection unit 509 of the electronic tag 50 and the previous first environment information is equal to or less than the first threshold value. .

  Furthermore, the environment information transmission unit 305 uses the second environment information acquired from the environment control device 40 after the number of received calibratable state information as the second threshold value as the second environment information for calibration. The environment information receiving unit 507 receives the second environment information for calibration, and the calibration value calculation unit 517 receives the second environment information for calibration and the second environment for calibration. The calibration value may be calculated based on the first environment information before receiving the information.

  Even if it does in this way, there can exist an effect similar to the said embodiment.

(Modification 2)
In the above embodiment, the case where communication between the relay device 30 and the information processing device 10 is always online has been described as an example. However, communication between the relay device 30 and the information processing device 10 is not always online. Also, it may be temporarily offline. Therefore, in the second modification, a case where communication between the relay device 30 and the information processing device 10 is offline will be described.

  20A and 20B are flowcharts illustrating an example of a procedure flow of processing performed in the information processing system 1 according to the second modification.

  The processing from step S201 to S207 is the same as the processing from step S101 to S107 in the flowcharts of FIGS. 19A and 19B.

  Subsequently, when the communication with the information processing apparatus 10 is offline, the communication unit 301 of the relay apparatus 30 waits for a predetermined time until it is online (step S209). However, here, it is assumed that it was not online.

  Subsequently, the communication unit 301 of the relay device 30 instructs the electronic tag 50 to read the calibration control information with the product number added (calibration information transmission), and the communication unit 503 of the electronic tag 50 includes the storage unit 501. The calibration control information to which the product number has been added is acquired and transferred to the relay device 30 (steps S211 to S217).

  If the communication control unit 301 of the relay device 30 cannot acquire the calibration control information to which the product number is added (No in step S219), the communication unit 301 instructs the electronic tag 50 to display that calibration has not been performed (step S221), and the network. An error and an unexecuted message are displayed on the display device 54 (step S223).

  On the other hand, if the communication control unit 301 of the relay device 30 can acquire the calibration control information to which the product number is added (Yes in step S219), it instructs the environment control device 40 to read the environment control information, and the environment control device 40. The communication unit 401 acquires the environment control information and passes it to the relay device 30 (steps S225 to S231). Here, it is assumed that the environmental control information is the set value of the first embodiment and is held in advance by the environmental control device 40.

  Subsequently, the communication unit 301 of the relay device 30 notifies the electronic tag 50 of the environmental control information received from the environment control device 40, and the communication unit 503 of the electronic tag 50 receives the notification from the relay device 30 and receives the product. The set value is associated with the calibration control information to which the number is added to obtain calibration condition information, which is stored in the storage unit 501 (steps S233 to S235).

  Subsequently, the processing from step S237 to S269 is the same as the processing from step S133 to S165 in the flowcharts of FIGS. 19A and 19B. However, if it is not less than or equal to the absolute value of the allowable calibration value (No in step S263), a network error and an uncalibrated message are displayed on the display device 54 (step S265).

  In the modified example 2, since the presence or absence of calibration cannot be confirmed, the calibration value is calculated even without calibration. In this case, if it is known that there is no calibration after restoration online, the information processing apparatus 10 What is necessary is just to correct with the correct calibration value memorize | stored in the memory | storage part 101.

  Subsequently, the communication unit 301 of the relay device 30 confirms the connection with the information processing device 10. The subsequent processing from step S273 to S277 is the same as the processing from step S167 to S171 in the flowcharts of FIGS. 19A and 19B.

(Modification 3)
In the third modification, another mode in which the communication between the relay apparatus 30 and the information processing apparatus 10 described in the second modification is offline will be described. Hereinafter, differences from the second modification will be mainly described, and components having the same functions as those of the second modification will be denoted by the same names and symbols as those of the second modification, and description thereof will be omitted.

  FIG. 21 is a block diagram illustrating an example of functional configurations of the relay device 1030 and the electronic tag 1050 according to the third modification. As shown in FIG. 21, in the relay device 1030 of the third modification, the illuminance information receiving unit 1307 and the notification unit 1309 of the communication unit 1301 are different from the second modification, and in the electronic tag 1050, the illuminance detection unit 1521 and the communication unit 1503. The illuminance information transmission unit 1523 and the first determination unit 1511 are different from the second modification. Note that the information processing apparatus 10 and the environment control apparatus 40 are the same as those in the second modification, and are not described.

  The illuminance detection unit 1521 periodically detects the illuminance around itself (the electronic tag 1050). In the modified example 3, the illuminance around its own in the transport container is periodically detected. The illuminance detection unit 1521 can be realized by, for example, the control device 51, the main storage device 52, and an optical sensor.

  The illuminance information transmission unit 1523 transmits illuminance information indicating the illuminance to the relay device 1030 every time the illuminance detection unit 1521 detects the illuminance.

  The illuminance information receiving unit 1307 receives illuminance information from each of the plurality of electronic tags 1050.

  The notification unit 1309 notifies the plurality of electronic tags 1050 that the predetermined condition is satisfied when the number of illuminance information indicating the illuminance that is equal to or less than the third threshold value is the fourth threshold value. In the third modification, the third threshold value is illuminance that can be determined to be a dark state, and the fourth threshold value is n, but is not limited thereto. That is, in Modification 3, the notification unit 1309 indicates that the predetermined condition is satisfied if the illuminance indicated by the illuminance information of all the electronic tags 50-1 to 50-n received by the illuminance information receiving unit 1307 is in a dark state. Notice. This is because the illuminance indicated by the illuminance information of all the electronic tags 50-1 to 50-n is in the dark state, and it is considered that the transport container is closed and is in the dark state, and the transport container is closed. This is because the temperature in the transport container is considered to be close to the set value.

  The first determination unit 1511 determines that the predetermined condition is satisfied based on the notification from the notification unit 1309 that the predetermined condition is satisfied.

  FIG. 22A and FIG. 22B are flowcharts illustrating an example of a procedure flow of processing performed in the information processing system 1001 according to the third modification.

  The processing from step S301 to S323 is the same as the processing from step S201 to S223 in the flowcharts of FIGS. 20A and 20B.

  Subsequently, the communication unit 1301 of the relay apparatus 1030 instructs the electronic tags 1050-1 to 1050-n to read the illuminance information, and the illuminance information transmission unit 1523 of each electronic tag 1050 is detected by the illuminance detection unit 1521. Illuminance information indicating the obtained illuminance is passed to the relay device 1030 (steps S325 to S331).

  Subsequently, the notification unit 1309 of the relay apparatus 1030 determines whether or not the illuminance information is received from all the electronic tags 1050-1 to 1050-n by the illuminance information reception unit 1307 (step S <b> 333). (No in step S333), the process returns to step S331.

  Subsequently, when the illuminance information receiving unit 1307 receives the illuminance information from all of the electronic tags 1050-1 to 1050-n (Yes in step S <b> 333), the notification unit 1309 illuminates all the illuminance information indicated in the dark state. It is determined whether or not there is (step S335), and if all are not dark (No in step S335), the process returns to step S325.

  Subsequently, when it is determined that all illuminance information is in a dark state (Yes in step S335), the notification unit 1309 notifies each electronic tag 1050 that the predetermined condition is satisfied, and the first determination unit 1511. Determines that the predetermined condition is satisfied based on a notification from the notification unit 1309 that the predetermined condition is satisfied, and the environmental information detection unit 509 detects the temperature (sensor temperature) of its own surroundings in the transport container. Then, the temperature obtained by adding the calibration value (0) to the detected temperature is stored in the storage unit 501 (step S337).

  The subsequent processing from step S339 to S375 is the same as the processing from step S241 to S277 in the flowcharts of FIGS. 20A and 20B.

  Even if it does in this way, there can exist an effect similar to the said embodiment.

(Modification 4)
In the above embodiment and each modified example, the case where the environmental information is temperature has been described as an example, but the present invention is not limited to this. For example, the environmental information may be humidity.

(Modification 5)
In the above-described embodiment and each modification, the second determination unit has described an example in which it is determined whether or not the difference between the latest temperature and the previous temperature is equal to or less than the first threshold. However, the present invention is not limited to this. Alternatively, it may be determined whether the difference between the latest temperature and the moving average of a plurality of past temperatures is equal to or less than the first threshold, or the temperature from the latest temperature to the past predetermined number of minutes. It may be determined whether or not the difference between the total value and the total temperature value from the previous temperature to the past predetermined number of minutes or the differential value is equal to or less than the first threshold value.

(program)
A program executed by the information processing apparatus, the relay apparatus, the environment control apparatus, and the electronic tag (hereinafter, referred to as “each apparatus of the above embodiment and each modification”) of the above embodiment and each modification can be installed. A file in a format or an executable format is provided by being stored in a computer-readable storage medium such as a CD-ROM, a CD-R, a memory card, a DVD (Digital Versatile Disk), or a flexible disk (FD).

  Further, the program executed by each device of the above-described embodiment and each modified example may be provided by being stored on a computer connected to a network such as the Internet and downloaded via the network. In addition, the program executed by each device of the above embodiment and each modification may be provided or distributed via a network such as the Internet. Further, the program executed by each device of the above-described embodiment and each modification may be provided by being incorporated in advance in a ROM or the like.

  The program executed by each device of the embodiment and each modification has a module configuration for realizing the above-described units on a computer. As actual hardware, for example, the CPU reads out a program from the ROM to the RAM and executes the program, so that each functional unit is realized on the computer.

DESCRIPTION OF SYMBOLS 1,1001 Information processing system 10 Information processing apparatus 11 Control apparatus 12 Main storage apparatus 13 Auxiliary storage apparatus 14 Display apparatus 15 Input apparatus 16 Communication apparatus 21 Recipient terminal 22 Shipper terminal 23 Distributor terminal 30-1, 30-2 ( 30, 1030) Relay device 31 Control device 32 Main storage device 33 Auxiliary storage device 34 First communication device 35 Second communication device 40 Environmental control device 41 Control device 42 Main storage device 43 Auxiliary storage device 44 Temperature sensor 45 Communication device 46 Heating / cooling device 50-1 to 50-n (50, 1050) Electronic tag 51 Control device 52 Main storage device 53 Auxiliary storage device 54 Display device 55 Temperature sensor 56 Communication device 101 Storage unit 103 Communication unit 301, 1301 Communication unit 303 Calibration possible state information receiving unit 305 Environmental information transmitting unit 401 Communication unit 40 Environmental information detection unit 405 Environmental control unit 501 Storage unit 503, 1503 Communication unit 505 Calibration possible state information transmission unit 507 Environmental information reception unit 509 Environmental information detection unit 511, 1511 First determination unit 513 Second determination unit 517 Calibration value Calculation unit 1307 Illuminance information reception unit 1309 Notification unit 1521 Illuminance detection unit 1523 Illuminance information transmission unit

JP 2006-023963 A

Claims (9)

An information processing system comprising a plurality of electronic tags and a relay device,
Each of the plurality of electronic tags includes:
An environmental information detector that periodically detects first environmental information that is environmental information around the electronic tag;
A first determination unit that determines whether an environment of a space where the electronic tag is located satisfies a predetermined condition;
A second determination unit that determines whether or not a difference between the latest first environmental information and the previous first environmental information is equal to or less than a first threshold when the predetermined condition is satisfied;
If the first threshold value or less, a calibratable state information transmitting unit that transmits calibratable state information indicating that the state is calibratable to the relay device;
An environment information receiving unit that receives second environment information that is environment information detected by the environment control device arranged in the space from the relay device after transmitting the calibratable state information;
Calibration for calculating a calibration value for calibrating the first environment information detected by the environment information detection unit based on the second environment information and the first environment information before receiving the second environment information. A value calculation unit,
The environmental information detection unit calibrates the first environmental information using the calibration value,
The relay device is
From each of the plurality of electronic tags, a calibratable state information receiving unit that receives the calibratable state information,
An environment information transmitting unit configured to acquire the second environment information from the environment control device and transmit the second environment information to the plurality of electronic tags when the number of calibratable state information received reaches a second threshold. Information processing system. The first determination unit determines whether or not the latest first environmental information is within a predetermined range,
The said 2nd determination part determines whether the difference of the newest 1st environmental information and the last 1st environmental information is below the said 1st threshold value, when it is in the said predetermined range. 1. The information processing system according to 1. The environmental information transmission unit periodically acquires the second environmental information from the environmental control device, and transmits the second environmental information to the plurality of electronic tags.
The environment information receiving unit periodically receives the second environment information from the relay device,
The first determination unit determines whether or not the latest second environment information is within a predetermined range,
The second determination unit determines whether or not a difference between the latest first environmental information and the previous first environmental information is equal to or less than the first threshold when the predetermined determination range falls within the predetermined range;
The environment information transmission unit uses the second environment information acquired from the environment control device after the number of received calibratable state information reaches the second threshold as the second environment information for calibration. Send to multiple electronic tags,
The environment information receiving unit receives the second environment information for calibration from the relay device after transmitting the calibratable state information,
The calibration value calculation unit calculates the calibration value based on the second environment information for calibration and the first environment information before receiving the second environment information for calibration. Information processing system. Each of the plurality of electronic tags includes:
The information processing system according to claim 2 or 3, further comprising a calibration condition information storage unit that stores calibration condition information for determining the predetermined range and the first threshold value. Each of the plurality of electronic tags includes:
An illuminance detector that periodically detects the illuminance around the electronic tag;
An illuminance information transmitter that transmits illuminance information indicating the illuminance to the relay device each time the illuminance is detected;
The relay device is
An illuminance information receiving unit that receives the illuminance information from each of the plurality of electronic tags;
A notification unit that notifies the plurality of electronic tags that the predetermined condition is satisfied when the number of illuminance information indicating the illuminance that is equal to or less than a third threshold is a fourth threshold;
The information processing system according to claim 1, wherein the first determination unit determines that the predetermined condition is satisfied based on a notification that the predetermined condition is satisfied. Each of the plurality of electronic tags includes:
The information processing system according to claim 5, further comprising a calibration condition information storage unit that stores calibration condition information for determining the first threshold value.   The information processing system according to claim 1, wherein the environmental information is temperature. An electronic tag,
An environmental information detector that periodically detects first environmental information that is environmental information around the electronic tag;
A first determination unit that determines whether an environment of a space where the electronic tag is located satisfies a predetermined condition;
A second determination unit that determines whether or not a difference between the latest first environmental information and the previous first environmental information is equal to or less than a first threshold when the predetermined condition is satisfied;
A calibratable state information transmitter that transmits proofreadable state information indicating that the proofreadable state is present to the relay device if the first threshold value or less;
An environment information receiving unit that receives second environment information that is environment information detected by the environment control device arranged in the space from the relay device after transmitting the calibratable state information;
Calibration for calculating a calibration value for calibrating the first environment information detected by the environment information detection unit based on the second environment information and the first environment information before receiving the second environment information. A value calculation unit,
The environmental information detection unit is an electronic tag that calibrates the first environmental information using the calibration value. A calibration value calculation method executed in an information processing system including a plurality of electronic tags and a relay device,
Each of the plurality of electronic tags includes:
An environmental information detection step of periodically detecting first environmental information which is environmental information around the electronic tag;
A first determination step of determining whether an environment of a space where the electronic tag is located satisfies a predetermined condition;
A second determination step for determining whether or not a difference between the latest first environmental information and the previous first environmental information is equal to or less than a first threshold when the predetermined condition is satisfied;
A calibratable state information transmission step of transmitting to the relay device calibratable state information indicating that it is in a calibratable state if it is equal to or less than the first threshold;
An environment information receiving step of receiving second environment information, which is environment information detected by the environment control device arranged in the space, from the relay device after transmitting the calibratable state information;
Calibration for calculating a calibration value for calibrating the first environmental information detected by the environmental information detecting step based on the second environmental information and the first environmental information before receiving the second environmental information. A value calculation step;
A calibration step of calibrating the first environmental information using the calibration value,
The relay device is
A calibratable state information receiving step for receiving the calibratable state information from each of the plurality of electronic tags;
An environment information transmitting step of acquiring the second environment information from the environment control device and transmitting it to the plurality of electronic tags when the number of calibratable state information received reaches a second threshold value. Calibration value calculation method.

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