JP5303436B2 - Measured value management system and measured value management method - Google Patents

Description

  The present invention relates to a measurement value management system and a measurement value management method. Specifically, the RFID tag and sensors are efficiently linked to manage sensor measurement values related to an object reliably and at low cost. It relates to the technology that enables it.

  In recent years, RFID tags have been widely used in the fields of supply chain management and article management in distribution and sales. Further, in the distribution field and the like, a temperature sensor, an acceleration sensor, and the like are sometimes used for quality control of goods being transported. In the future, it is expected that the article management technology combining such RFID tags and various sensors will spread. As a relevant technology, for example, a product distribution management system has been proposed that makes it possible to easily acquire accurate environmental data of each site where products are placed in the distribution process so that the life analysis of the products can be performed in detail (Patent Literature). 1). In addition, a wireless tag device that efficiently collects necessary information and effectively holds the collected data with a small memory capacity, a wireless tag processing system, and the like have been proposed (see Patent Document 2). .

JP 2004-292147 A JP 2008-217556 A

By the way, sensors are likely to be more expensive to introduce than RFID tags, and unlike RFID tags, it is difficult to install sensors individually. This means that, for example, in the field of distribution, with respect to articles that are transported via various distribution channels, all sensors are installed for each item to acquire data on the transport status on the distribution channel. It is difficult to use.
Therefore, the present invention has been made in view of the above-described problems, and mainly provides a technique capable of managing sensor measurement values related to an object reliably and at low cost by efficiently linking RFID tags and sensors. Objective.

The measurement value management system of the present invention that solves the above-mentioned problems is a measurement value management system that manages the measurement values of sensors installed for each management unit of an article attached to an RFID tag, and is installed in the movement route or location of the article. A sensor management device for acquiring measurement data at the sensor by communicating with the sensor, and acquiring measurement data at the sensor obtained by the sensor management device, and performing predetermined statistical processing on the measurement data, An RFID tag reader / writer that provides a measurement data acquisition unit to be executed for each management unit identification information included, and an instruction to write the statistical processing result using the management unit identification information included in the measurement data as write destination information. Including a data storage processing unit to notify to the server, and the write instruction from the server using management unit identification information as write destination information Receiving, with respect to an RFID tag that stores identification information of the management unit to which the write instruction indicates, and a reader-writer for executing write processing of the statistical processing result, the measurement data acquisition unit of the server, by the reader-writer A predetermined statistical process for acquiring free capacity information in the storage area of the RFID tag and reducing the data size of the measurement data to the size of the free capacity is performed for each management unit identification information included in the measurement data. run, characterized in that.

Incidentally, in the above measurement management system, the measurement data acquisition unit of the server communicates with a plurality of the sensor management device, it acquires the measurement data of the sensors each sensor managing device manages, regarding the measurement data A predetermined statistical process is executed for each piece of management unit identification information included in the measurement data, and the data storage processing unit of the server includes the management unit identification information included in the measurement data and the measurement data. Dale the identification information and the statistical processing result of the write instruction and the write destination information of the sensor is a measurement device for measuring data, it notifies the reader-writer of the RFID tag, the reader writer, from the server, management Receiving the write instruction using the unit identification information and the sensor identification information as the write destination information, and identifying the management unit identification information indicated by the write instruction. The relative RFID tag for storing, may execute the statistical processing result write process to the storage area corresponding to the identification information of the sensor of the plurality of storage areas to which the RFID tag is provided.

Further, the above-mentioned measurement management system, the server, the reader writer and communication, the reader-writer is acquired by the output unit of the data of the statistical processing result stored in the storage area of the RFID tag communicable It is good also as providing the tag data acquisition part output to these.

Further, in the above measurement management system, tag data acquisition unit of the server communicates with the reader writer, the data of the statistical processing result stored in the storage area of the reader writer can communicate a RFID tag The statistical processing result data may be acquired and collated with a predetermined reference value, and the collation result may be output to the output unit.

Further, sensor measurements management method of the present invention is a measurement management method for managing the measured values of the sensors installed in each management unit of the article that accompanies the RFID tag, which is installed in a moving path or location of the article The management device acquires measurement data at the sensor by communicating with the sensor, the reader / writer acquires the free space information in the storage area of the RFID tag, the server communicates with the sensor management device, and Predetermined statistics for acquiring sensor measurement data obtained by the sensor management device , communicating with the reader / writer to acquire the free capacity information, and reducing the data size of the acquired measurement data to the size of the free capacity A process is executed for each identification information of the management unit included in the measurement data, and the statistical processing result using the identification information of the management unit included in the measurement data as the write destination information. The write instruction, notifies the reader-writer of RFID tags, interrogator communicates with the server, it receives the write instruction and the write destination information identification information management unit, a management unit to which the write instruction indicates Write processing of the statistical processing result is performed on the RFID tag storing the identification information.

  ADVANTAGE OF THE INVENTION According to this invention, an RFID tag and sensors can be cooperated efficiently and the sensor measured value regarding a target object can be managed reliably and at low cost.

It is a figure which shows the schematic structural example 1 of the measured value management system of this embodiment. It is a figure which shows the structural example of the RFID tag and reader / writer of this embodiment. It is a figure which shows the structural example of the sensor and sensor server of this embodiment. It is a figure which shows the structural example of the centralized control apparatus (server) of this embodiment. It is a figure which shows the structural example of the storage area in the RFID tag of this embodiment. It is a figure which shows the processing flow example 1 of the measured value management method of this embodiment. It is a figure which shows the schematic structural example 2 of the measured value management system of this embodiment. It is a figure which shows the processing flow example 2 of the measured value management method of this embodiment. It is a figure which shows the example of data management in the centralized control apparatus of this embodiment.

--- System configuration ---
Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a network configuration diagram including a measurement value management system 10 of the present embodiment. A measurement value management system 10 (hereinafter, system 10) shown in FIG. 1 is a computer system that can efficiently manage sensor measurement values related to an object by efficiently linking RFID tags and sensors. is there.

  In the present embodiment, the system 10 includes a central control device 100 as a server, a sensor server 200 as a sensor management device, and a reader / writer 300 of an RFID tag 30. The centralized control device 100 is a server device managed by, for example, a transportation company, and travels on an article as a transported object = on a transportation route (including an article delivery destination) or a manufacturing process via various networks 15 such as a WAN. An apparatus connected to the sensor server 200 or the reader / writer 300 installed in the communication device can be assumed.

  In the example shown in FIG. 1, an RFID tag 30 storing a tag ID, an identification code of the article 5 and the like and a sensor 50 (A sensor 50A and B sensor 50B in the figure) are attached to the article 5 to be managed. Has been. The types of the A sensor 50A and the B sensor 50B are different depending on the content to be monitored of the article 5. For example, the A sensor 50A and the B sensor 50B are temperature sensors when monitoring the temperature of the article 5 or its surroundings. When it does, it becomes an acceleration sensor. Of course, the type of sensor is not limited.

  The RFID tag 30 communicates wirelessly with the reader / writer 300, and the sensor 50 communicates with the sensor server 200 (A sensor 50A is A sensor server 200A and B sensor 50B is B sensor server 200B). Although not shown, of course, a plurality of reader / writers 300, sensor servers 200, RFID tags 30, and sensors 50 may be provided. Further, there may be a plurality of configurations shown in FIG. 1, and each central control device 100 may be connected to a higher-level management device or the like. In that case, an instruction to read / write the RFID tag 30 or acquire data of the sensor 50 may be issued from the upper management device to each central control device 100, or the control content is stored in each central control device 100, and the RFID The read / write result of the tag 30 and the data of the sensor 50 may be transmitted to the upper management device.

  FIG. 2 is a diagram illustrating a structure example of the RFID tag 30 and the reader / writer 300 according to the present embodiment. The RFID tag 30 includes an antenna 31 that receives radio waves from the reader / writer 300 and transmits / receives signals and data to / from the reader / writer 300. The RFID tag 30 includes a rectifying unit 32 that rectifies radio waves received from the antenna 31, and a power supply unit 33 that detects a voltage rectified by the rectifying unit 32 and supplies power to each unit. The RFID tag 30 includes a communication control unit 34 that demodulates received signals and RFID tag command data, and modulates signals to be transmitted and RFID tag command data.

  The RFID tag 30 includes a control unit 35 that executes various processes such as an initialization process, an RFID tag command data process, an access management process for each data item in the storage unit 36, and a process for generating response data to the reader / writer 300. ing. The RFID tag 30 includes a storage unit 36 that stores a tag ID that is an identification number of the RFID tag 30, identification information of a management unit of the article 5 to the article 5 to which the RFID tag 30 is attached, and other information. A structural example of the storage unit 36 will be described later with reference to FIG. As the management unit of the article 5, for example, a shipping unit or a storage unit of the article 5 can be assumed. Therefore, the identification information indicating the management unit of the article 5 includes, for example, a lot number and a pallet number. Alternatively, a single article may be a management unit such as a shipping unit or a storage unit.

  On the other hand, the reader / writer 300 transmits the RFID tag command data to the reader / writer main body 312 that performs control for transmitting / receiving data to / from the RFID tag 30, the radio wave output, the RFID tag 30, and the response from the RFID tag 30. Or the RFID reader / writer antenna 311 for receiving the signal.

  The reader / writer main body 312 transmits / receives RFID tag command data to / from the RFID tag 30 using the reader / writer antenna 311 and receives a response from the transmitter / receiver 313. At the time of modulation and reception of the RFID tag command data And a communication control unit 314 including a communication method.

  The reader / writer main body 312 includes a control unit 315 that controls the entire RFID reader / writer, a power supply unit 316 that supplies power from outside and supplies power to each unit, the central control device 100, an appropriate personal computer, and the like. A host interface 317 for communicating data, RFID reader / writer command data, execution results, and the like, and a memory 318 for storing a program for realizing necessary functions. The control unit 315 communicates with the centralized control device 100 via the network 15, receives a write instruction using the tag ID as write destination information, and stores the tag ID indicated by the write instruction with respect to the RFID tag 30 that stores the tag ID. A write process of the statistical process result included in the write instruction is executed.

  Such a reader / writer 300 outputs radio wave to the RFID tag 30 and transmits the RFID tag command data 1. The RFID tag 30 that has received the radio wave operates by receiving power from the radio wave, performs processing corresponding to the received RFID tag command data 1, and returns the RFID tag data 2 as a result. The RFID tag command data 1 is a read command for acquiring an identification number and data stored in the RFID tag 30, a write command for storing data in the RFID tag 30, and reading or writing for each area of the RFID tag 30. There are lock commands etc. to disable.

  FIG. 3 is a diagram illustrating a structure example of the sensor 50 and the sensor server 200 according to the present embodiment. The sensor 50 includes an antenna 51 that receives radio waves from the sensor server 200 and transmits and receives signals and data to and from the sensor server 200. The sensor 50 also includes a rectifying unit 52 that rectifies radio waves received from the antenna 51, a power source unit 53 that detects a voltage obtained by rectification, holds a power source, and supplies the power source to each unit. Yes.

  Further, the sensor 50 includes a communication control unit 54 that demodulates received signals and sensor command data, and modulates signals to be transmitted and sensor command data, and a detection unit 55 that acquires external environment information such as temperature and acceleration. I have. Further, the sensor 50 performs initialization processing, sensor command data processing, processing of data detected by the detection unit 55, storage processing in the storage unit 57, or data reference processing in the storage unit 57, sensor data responding to the sensor server 200. The control part 56 which performs the production | generation process of is provided. In addition, the sensor 50 includes a storage unit 57 that stores the identification number of the sensor 50 and other information and data acquired by the detection unit 55.

  On the other hand, the sensor server 200 is a server that is installed on the movement route or location of the article 5 and acquires measurement data of the sensor 50 by communicating with the sensor 50, and performs control for transmitting and receiving data to and from the sensor 50. It comprises a sensor main body 211 that carries it, and a sensor server antenna 212 that performs output of radio waves, transmission of sensor command data to the sensor 50, and reception of responses from the sensor 50. The sensor main body 211 transmits and receives sensor command data to the sensor 50 using the sensor server antenna 212 and receives a response thereof. The sensor main body 211 modulates the sensor command data at the time of transmission and the signal at the time of reception. A communication control unit 214 that performs amplification and demodulation is provided.

  The sensor server 200 includes a control unit 215 that controls the entire sensor server, a power supply unit 216 that receives power from outside and supplies power to each unit, and an external communication device such as the centralized control device 100 or a personal computer. A host interface 217 that communicates data, sensor command data, and execution results, and a memory 218 that stores a program that implements necessary functions. The sensor server 200 outputs radio waves to the sensor 50 and transmits sensor command data 3. On the other hand, the sensor 50 obtains the sensor command data 3 by receiving the radio wave, executes processing corresponding to the sensor command data 3, and returns the sensor data 4 as a result to the sensor server 200. The sensor command data 3 includes a command for acquiring data such as temperature and acceleration accumulated in the storage unit 57 of the sensor 50, a command for controlling the sensor 50, and the like.

  Next, the configuration of the central control device 100 included in the network 15 will be described. The central control apparatus 100 is a server apparatus that constitutes the system 10. The central control apparatus 100 is configured by connecting a storage unit 101, a memory 103, a control unit 104 such as a CPU, and a communication unit 107 to each other through a BUS.

  The centralized control device 100 is executed by the control unit 104 by reading the program 102 stored in the storage unit 101 such as a hard disk drive into a volatile memory such as the memory 103. In addition, the central control device 100 may include an input unit 105 such as various keyboards and buttons generally provided in a computer device, and an output unit 106 such as a display as necessary. The central control device 100 includes a communication unit 107 such as a NIC (Network Interface Card) that exchanges data with other devices, and can communicate with the sensor server 200, the reader / writer 300, and the like via the network 15. It has become.

  Next, functional units that the central control apparatus 100 configures and holds in the storage unit 101 based on the program 102 will be described. The centralized control device 100 communicates with the sensor server 200, which is a sensor management device, via the network 15, acquires measurement data of the sensor 50 obtained by the sensor server 200, and performs predetermined statistical processing on the measurement data. And a measurement data acquisition unit 110 that is executed for each piece of management unit identification information included in the measurement data. As an example of the statistical process executed by the measurement data acquisition unit 110, a process for obtaining an average value, a maximum value, and a minimum value of measurement data can be assumed as an example. Of course, the measurement data acquisition unit 110 naturally includes a program for executing such statistical processing.

  Further, the central control apparatus 100 notifies the reader / writer 300 of the RFID tag 30 via the network 15 of an instruction to write the statistical processing result using the identification information of the management unit included in the measurement data as the write destination information. A data storage processing unit 111 is provided.

  Note that the measurement data acquisition unit 110 of the central control device 100 communicates with a plurality of sensor servers 200 installed on the movement route or location of the article 5 via the network 15 to manage the sensors 50 managed by each sensor server 200. It is also possible to acquire the measurement data at and to execute predetermined statistical processing on the measurement data for each piece of management unit identification information included in the measurement data.

  In this case, the data storage processing unit 111 of the central control device 100 includes the identification information of the management unit included in the measurement data and the identification information of the sensor 50 that is the measurement device of the measurement data included in the measurement data. It is preferable to notify the reader / writer 300 of the RFID tag 30 via the network 15 of a write instruction for the statistical processing result using the write destination information as the write destination information.

  At this time, the reader / writer 300 communicates with the centralized control device 100 via the network 15 to receive the write instruction using the identification information of the management unit and the identification information of the sensor 50 as the write destination information. Write processing of the statistical processing result to the storage area corresponding to the identification information of the sensor 50 among the plurality of storage areas provided in the RFID tag 30 for the RFID tag 30 storing the identification information of the management unit indicated by the writing instruction Is preferably executed.

  In addition, the measurement data acquisition unit 110 of the centralized control device 100 communicates with the sensor server 200 via the network 15 to acquire measurement data of the sensor 50 obtained by the sensor server 200, and the reader / writer 300 The measurement data includes a predetermined statistical process for communicating via the network 15 to obtain information on the free space in the storage area of the RFID tag 30 and reducing the data size of the measurement data to the size of the free space. It may be executed for each piece of management unit identification information.

  The centralized control device 100 communicates with the reader / writer 300 via the network 15 and acquires the statistical processing result data stored in the storage area of the RFID tag 30 with which the reader / writer 300 can communicate. A tag data acquisition unit 112 that outputs to the output unit 106 may be provided.

  The tag data acquisition unit 112 of the centralized control device 100 communicates with the reader / writer 300 via the network 15, and the statistical processing result stored in the storage area of the RFID tag 30 with which the reader / writer 300 can communicate. The statistical processing result data may be collated with a predetermined reference value, and the collation result may be output to the output unit 106.

  Each of the units 110 to 112 in the centralized control device 100 constituting the system 10 described so far may be realized as hardware, or stored in an appropriate storage unit such as a memory or an HDD (Hard Disk Drive) in the centralized control device 100. It may be realized as a program. In this case, a control unit such as the CPU of the centralized control device 100 reads the corresponding program from the storage unit in accordance with the program execution and executes it.

--- Data structure example ---
Next, an example of the data structure in the storage unit 36 of the RFID tag 30 of this embodiment will be described. FIG. 5 is a diagram illustrating a data configuration example of the RFID tag 30 of the present embodiment. The RFID tag 30 in this embodiment includes the following areas in the storage unit 36. That is, the Reserved 402 for storing the password for access authentication, the identification number 411 of the RFID tag 30 = the UII 403 for storing the tag ID, and the product identification number 413 (lot number, manufacturing number, etc.) of the article 5 to which the RFID tag 30 is attached. A TID 404 to be stored and a USER 406 data storage area where the user can freely read and write data. The area of USER 405 illustrated in the figure is divided into five areas, Block_a 406, Block_b 407, Block_c 408, Block_d 409, and Block_e 410.

  As described above, the password 411 stored in the area of the Reserved 402 is a password for accessing each of the areas 402 to 410, and may be set for each area (in this case, for each area) You ’re setting access restrictions).

  The Block_a 406 to Block_e 410 are data storage areas for each sensor. For example, A sensor data 414 is stored in Block_a 406, B sensor data 415 is stored in Block_b 407, C sensor data 416 is stored in Block_c 408, D sensor data 417 is stored in Block_d 409, and E sensor data 418 is stored in Block_e 410. The The sensor data stored in these areas 406 to 410 is the result of statistical processing of the measurement data obtained from the corresponding sensor by the central control apparatus 100.

--- Example of processing procedure 1 ---
Hereinafter, the actual procedure of the measurement value management method in the present embodiment will be described with reference to the drawings. Various operations corresponding to the measurement value management method described below are realized by a program that is read and executed in a memory such as the central control device 100, the sensor server 200, and the reader / writer 300 constituting the system 10. And this program is comprised from the code | cord | chord for performing the various operation | movement demonstrated below. FIG. 6 is a diagram illustrating a processing flow example 1 of the measurement value management method of the present embodiment. Here, the acquisition of measurement data from the sensor server 200 and the data writing process to the RFID tag 30 in the central control apparatus 100 will be mainly described.

  In this case, the measurement data acquisition unit 110 of the centralized control device 100 communicates with the sensor server 200 set or designated in advance via the input unit 105, for example, via the network 15, and notifies the measurement data acquisition request. (S100). Of course, as a premise for performing such communication, the centralized control device 100 naturally includes the address of each sensor server 200 on the network 15 in the storage unit 101, and receives the designation of the sensor server 200 by the input unit 105 or the like. The address of the sensor server 200 (single or plural) is specified in the storage unit 101 and communication is started (the same applies to the reader / writer 300). The step s100 may be started by detecting the arrival of a start time or the like preset in the central control apparatus 100 by using a clock function or the like that the central control apparatus 100 naturally has as a computer. Alternatively, it may be started in response to the detection notification of the object 5 from the sensor server 200, or the central control device itself may include a sensor that detects the object 5 and start in response to the detection signal of the object 5 from the corresponding sensor. .

  On the other hand, the sensor server 200 that has received the measurement data acquisition request from the centralized control device 100 returns, for example, the measurement data acquired by wireless communication with the sensor 50 and accumulated in the memory 218 in response to the acquisition request. (S101).

  The measurement data acquisition unit 110 of the central control apparatus 100 receives and acquires the measurement data returned from the sensor server 200 (s102), and the management unit in which the measurement data includes predetermined statistical processing related to the measurement data. This is executed for each identification information, for example, for each lot number (s103). When the sensor server 200 that has returned the measurement data is managing a temperature sensor, the central control apparatus 100 uses the temperature data measured by the sensor 50 from the sensor server 200 as measurement data. obtain. When the sensor server 200 accumulates a large amount of continuous data including past temperature data, the central control device 100 can naturally acquire the large amount of temperature data. On the other hand, since it is not necessary to store all of these large amounts of temperature data in the RFID tag 30 and the storage capacity itself of the RFID tag 30 is not suitable for storing a large amount of data, the maximum value or minimum value of the temperature data group It is desirable to convert the value into an average value or the like. That is, statistical processing is required to process the data size that can be stored in the RFID tag 30 (the statistical processing method is not limited).

  Further, even if there are a plurality of sensor servers 200 that return the measurement data, or only one sensor server 200 returns the measurement data, the measurement data of a plurality of types of sensors 50 are included. If it is, the statistical processing in the measurement data acquisition unit 110 is executed for each sensor. Since each measurement data includes the identification information of the sensor 50 that measured the measurement data, the measurement data may be classified using the identification information as a key to perform statistical processing.

  For example, prior to step s103, the measurement data acquisition unit 110 of the centralized control apparatus 100 communicates with the reader / writer 300 set or designated in advance via the input unit 105 via the network 15, and this reader / writer 300. May acquire the free space information in the storage area of the RFID tag 30 that can communicate. In this case, the measurement data acquisition unit 110 notifies the reader / writer 300 of a request for checking the free space of the RFID tag 30 and obtains free space information of the RFID tag 30 from the reader / writer 300. In response to the request for checking the free space, the reader / writer side makes an inquiry about the free space to the communicable RFID tag 30 (= the RFID tag 30 existing within a predetermined distance from the reader / writer 300). In response to this inquiry, the RFID tag 30 returns, for example, information on the free capacity of each area of Block_a406 to Block_e410.

  The measurement data acquisition unit 110 that has obtained the free capacity information of the RFID tag 30 from the reader / writer 300 performs a predetermined statistical process for reducing the data size of the measurement data to the size of the free capacity in the step s103. This is executed for each piece of management unit identification information included. For example, it is assumed that the size of the measurement data group obtained from the sensor server 200 relating to the A sensor 50A is “100 kbytes” and the free space of the Block_a 406 in the storage area of the RFID tag 30 is “5 kbytes”. The measurement data acquisition unit 110 calculates an average value from the 20 pieces of measurement data (data of 5 kbytes per one) forming the measurement data group, and rounds it into one measurement data (= 5 kbytes).

  Subsequently, the data storage processing unit 111 of the centralized control device 100 sends the network unit 15 a write instruction of the statistical processing result using the identification information of the management unit included in the measurement data, for example, the lot number as the write destination information. Then, the reader / writer 300 of the RFID tag 30 is notified (s104). This notification may be multicast to the reader / writer 300 existing in the network 15, or may be performed to the reader / writer 300 designated in advance by the input unit 105.

  If the measurement data to be handled is from one type of sensor 50, only the identification information of the management unit may be used as the write destination information. However, for the measurement data derived from a plurality of types of sensors 50, the data storage processing unit 111 The identification information of the management unit included in the measurement data and the identification information of the sensor 50 that is the measurement device of the measurement data included in the measurement data are used as write destination information. That is, the storage area (areas 406 to 410) of the RFID tag 30 is designated to store the statistical processing result.

  On the other hand, the reader / writer 300 communicates with the central control apparatus 100 via the network 15 and receives the write instruction using the management unit identification information and the sensor 50 identification information as write destination information (s105). Then, the reader / writer 300 communicates with the RFID tag 30 existing in the communicable range, and acquires the product identification information = lot number information stored in the TID 404 in the storage area of the RFID tag 30 ( s106). Further, the reader / writer 300 determines whether the product identification information = lot number acquired here matches the lot number indicated by the write instruction, and specifies the RFID tag 30 that stores the lot number specified by the write instruction ( s107).

For the RFID tag 30 identified in step s107, the reader / writer 300 identifies the identification information of the sensor 50 among the plurality of storage areas provided in the corresponding RFID tag 30, for example, the storage area “Block_a” corresponding to “sensor A”. The statistical processing result is written to the central control apparatus 100 (s108), and the completion of the process is returned to the central control apparatus 100.
On the other hand, the data storage processing unit 111 of the centralized control apparatus 100 receives a notification of completion of the writing process of the statistical processing result from the reader / writer 300 to the RFID tag 30 (s109), and ends the process.

  In order to make it impossible to read or update the statistical processing result data written to the RFID tag 30, after the step s108, the reader / writer 300 makes the RFID tag 30 unreadable or unwritable with respect to the corresponding storage area. A lock command may be transmitted. In addition, when “write impossible” is set for the storage area to which the RFID tag 30 is to be written, the reader / writer 300 cancels the write disable setting before writing the statistical processing result, and then performs writing. Processing may be executed.

--- Processing procedure example 2 ---
FIG. 7 is a diagram showing a schematic configuration example 2 of the measurement value management system of this embodiment, and FIG. 8 is a diagram showing a processing flow example 2 of the measurement value management method of this embodiment. Next, processing when the statistical processing result stored in the storage area by the RFID tag 30 is read will be described. The network configuration in this case does not require a sensor system including the sensor 50 and the sensor server 200 as illustrated in FIG. By selecting and installing the configuration of FIG. 1 and the configuration of FIG. 7, a system can be constructed at a lower cost. For example, the system having the configuration shown in FIG. 1 may be constructed at a location where the measurement data of the sensor 50 needs to be updated and the system having the configuration shown in FIG.

  In this example, the RFID tag 30A is attached to the A article 5A, and the RFID tag 30B is attached to the B article 5B. These RFID tags are based on the premise that statistical processing results relating to measurement data of various sensors 50 are already stored in the processing described in the first processing procedure example. Although FIG. 7 shows an example in which only one reader / writer 300 is connected to the centralized control device 100, a plurality of reader / writers 300 may be connected.

  In such a situation, the tag data acquisition unit 112 of the centralized control device 100 communicates with a predetermined reader / writer 300 (a reader / writer 300 specified in advance by the input unit 105 or a multicast target reader / writer) via the network 15. Then, a request for acquisition of statistical processing results from the RFID tag 30 is notified (s200).

  On the other hand, the reader / writer 300 searches for the RFID tag 30 in the radio wave irradiation range (s201). When the RFID tag 30 that can communicate with this process cannot be searched (s201: No), the reader / writer 300 ends the process. On the other hand, when the RFID tag 30 that can be communicated by the above process can be retrieved (s201: Yes), the reader / writer 300 stores the retrieved RFID tag 30 in the storage areas 406 to 410 for each sensor. A statistical processing result data acquisition request is notified, and the corresponding statistical processing result is obtained (s202).

  If the “not readable” lock is set on the RFID tag 30, the reader / writer 300 executes a command for canceling the “not readable” setting in step s202. Of course, on the RFID tag side, access control to each storage area is executed based on the password 411 of the Reserved 402. As illustrated in FIG. 5, when a plurality of storage areas 406 to 410 are not set, but the storage area is only one, the reader / writer 300 simply stores the storage area in the RFID tag 30. A data request will be notified.

  Thus, the reader / writer 300 acquires the statistical processing result data stored in the storage area of the communicable RFID tag 30 and returns it to the central control apparatus 100 (s203). In the centralized control device 100, the statistical processing result obtained by the reader / writer 300 from the RFID tag 30 is stored in the storage unit 101, and is output to the output unit 106 such as a display device (s204), and the processing is terminated. An example of data management of statistical processing results obtained from the reader / writer 300 by the central control apparatus 100 is shown in FIG. In the example of FIG. 9, the value “10” is stored as the statistical processing result derived from the A sensor and the value “600” is stored as the statistical processing result derived from the B sensor in the field 710 for the RFID tag A. Similarly, in the field 720 for RFID tag B, a value of “5” is stored as a statistical processing result derived from the A sensor, and a value of “500” is stored as a statistical processing result derived from the B sensor.

  Note that the tag data acquisition unit 112 of the centralized control device 100 collates the statistical processing result data with a predetermined reference value, for example, after the step s204 (of course, before s204), and the collation result is obtained. The data may be output to the output unit 106 (s205). When the statistical processing result indicates, for example, temperature data, and the predetermined reference value indicates a normal temperature range, the collation result indicates that the sensor 50 affixed to the article 5 = the surroundings of the article sensed by the temperature sensor This is a determination result as to whether or not the temperature is within the normal temperature. Further, when the statistical processing result indicates, for example, acceleration data, and the predetermined reference value indicates the normal acceleration range, the collation result indicates that the sensor 50 attached to the article 5 = the article sensed by the acceleration sensor Is determined as to whether or not the movement is within the normal acceleration range. In addition, various aspects such as a pressure value, a wind speed, a concentration of a fluid, and the like can be similarly assumed.

  As an output example of the collation result, for example, a predetermined message may be notified to an upper management apparatus or a user terminal to which the central control apparatus 100 is connected. Whether or not the statistical processing result is within the normal range is not output, the collation result is listed and stored in the storage unit 101 of the centralized control device 100, or a higher-level management device connected to the network It may be transmitted to the user terminal or the like.

  Of the above processes, the process of the central control apparatus 100 may be performed by the reader / writer 300 instead.

  As described above, according to the present embodiment, it is possible to manage the sensor measurement value related to the object reliably and at low cost by efficiently linking the RFID tag and the sensors.

  As mentioned above, although embodiment of this invention was described concretely based on the embodiment, it is not limited to this and can be variously changed in the range which does not deviate from the summary.

5 Article 10 Measurement Value Management System 15 Network 16 Network 30 RFID Tag 50 Sensor 100 Centralized Control Device (Server)
101 storage unit 102 program 103 memory 104 control unit (CPU)
105 Input section (keyboard, mouse, etc.)
106 Output unit (display, speakers, etc.)
107 Communication Unit 110 Measurement Data Acquisition Unit 111 Data Storage Processing Unit 112 Tag Data Acquisition Unit 200 Sensor Server (Sensor Management Device)
300 Reader / Writer

Claims (5)

It is a measurement value management system that manages the measurement value of a sensor installed for each management unit of an article attached to an RFID tag,
A sensor management device that is installed in the movement path or location of the article and that acquires measurement data from the sensor by communicating with the sensor;
A measurement data acquisition unit that acquires sensor measurement data obtained by the sensor management device and executes predetermined statistical processing on the measurement data for each piece of management unit identification information included in the measurement data; and the measurement data A server including a data storage processing unit for notifying the reader / writer of the RFID tag of a write instruction of the statistical processing result using the identification information of the management unit included in the write destination information,
The write instruction using the management unit identification information as the write destination information is received from the server, and the statistical processing result writing process is executed for the RFID tag storing the management unit identification information indicated by the write instruction. Including a reader / writer,
The measurement data acquisition unit of the server acquires the free capacity information in the storage area of the RFID tag by the reader / writer, and performs predetermined statistical processing for reducing the data size of the measurement data to the size of the free capacity, Execute for each management unit identification information included in the measurement data.
A measured value management system. The measurement data acquisition unit of the server
In communication with a plurality of the sensor management device, it acquires the measurement data of the sensors each sensor managing device manages the predetermined statistical processing relating to the measurement data, for each identification information of the management unit of the measurement data includes Run,
The data storage processing unit of the server
The identification information management unit measurement data contains a write instruction of the measurement the data is a comprise that identification information and the write destination information of the sensor is a measuring device for the measurement data statistical processing results, the Notify the reader / writer of the RFID tag,
The reader / writer is
From the server, it receives the write instruction and the identification information of the identification information and sensor management unit and the writing destination information, to an RFID tag that stores identification information of the management unit indicating the write instruction, is the RFID tag The measurement value management system according to claim 1, wherein a process of writing the statistical processing result to a storage area corresponding to the identification information of the sensor among a plurality of storage areas provided is executed. The server
A tag data acquisition unit that communicates with the reader / writer, acquires data of the statistical processing result stored in a storage area of the RFID tag that can be communicated with the reader / writer, and outputs the data to an output unit. The measured value management system according to claim 1 or 2 . The tag data acquisition unit of the server,
The communication with the reader-writer, the reader writer obtains data of the statistical processing result stored in the storage area of the RFID tag can communicate collates the data of the statistical processing result with a predetermined reference value, the collation The measurement value management system according to claim 3 , wherein the result is output to an output unit. A measurement value management method for managing measurement values of a sensor installed for each management unit of an article attached to an RFID tag,
The sensor management device installed in the movement route or location of the article acquires measurement data at the sensor by communicating with the sensor,
The reader / writer acquires the free space information in the storage area of the RFID tag,
Server communicates with the sensor management device, it acquires the measurement data of the sensor the sensor managing device is obtained, wherein the communicating with the reader-writer to acquire the free space information, the data size of the measurement data the acquired the predetermined statistical processing be reduced to the size of the free space and then executed for each identification information of the management unit of the measurement data includes, was a write destination information identification information management unit the measurement data contains the Notify the RFID tag reader / writer of the statistical processing result write instruction,
PCD, communicate with the server, it receives the write instruction and the write destination information identification information management unit, to the RFID tag that stores identification information of the management unit to which the write instruction is shown, the statistical processing result Execute the writing process of
A measured value management method.