Information processing system, information processing terminal, information processing method, and program

Abstract

To improve the reliability of a detection signal from a wireless communication medium on which a high-specification main processor is not installed.SOLUTION: An information processing system includes: a wireless communication medium having a state detection unit that detects the state of a detection target, an IC chip that stores unique information for identifying the state detection unit, and a wireless communication antenna connected to the IC chip; an information processing terminal having a reading unit for reading a detection signal of the state detection unit and the unique information from the wireless communication medium; and an information processing device having the unique information and a determination algorithm linked to the unique information. The information processing terminal reads the detection signal multiple times in the reading unit, and corrects the detection signal based on the read unique information and plurality of detection signals and the determination algorithm received from the information processing device.SELECTED DRAWING: Figure 1

Description

【Technical Field】 【0001】 The present invention relates to an information processing system, an information processing terminal, an information processing method, and a program. 【Background Art】 【0002】 Patent Document 1 discloses a technique for correcting deterioration of various sensors such as an image sensor, a temperature sensor, and a radiation measuring instrument mounted on an electronic device in a system in which the electronic device and a server are connected via a network. 【0003】 [[ID=1C]]In the system described in Patent Document 1, the server analyzes detection data from sensors mounted on a communication device as an electronic device at a predetermined timing to identify deterioration locations and causes of deterioration. Then, data for correcting the detection data is generated according to the identified deterioration locations and causes of deterioration, and is transmitted to the communication device via the network. 【0004】 According to Patent Document 1, the communication device can correct detection data due to deterioration locations and causes of deterioration of the mounted sensors based on correction data transmitted from the server via the network. 【0005】 By the way, in fields such as product manufacture, management, and distribution, printing media such as tags on which information about a product is visibly printed and attached to the product, and labels on which information about a product is visibly printed and attached to the product or the like are used. 【0006】 In recent years, particularly, wireless communication media such as RFID (Radio Frequency Identification) labels and RFID tags corresponding to RFID technology for transmitting and receiving information by non-contact communication have become widespread. 【0007】 Therefore, by providing a sensor (state detection unit) capable of detecting the state of a product in these wireless communication media and attaching it to the product, a detection signal based on the state of the product can be obtained. [Prior art documents] [Patent Documents] 【0008】 [Patent Document 1] International Publication No. 2020 / 116046 [Overview of the project] [Problems that the invention aims to solve] 【0009】 In a system like the one described in Patent Document 1, a high-spec main processor is installed to operate the electronic device, making it possible to compensate for the degradation of sensors installed in the electronic device. 【0010】 However, due to limitations in usage and manufacturing costs, wireless communication media cannot be configured with high-spec circuits. As a result, detection signals obtained from wireless communication media sometimes fail to meet the reliability requirements necessary for determining the state of a product. 【0011】 Therefore, the present invention aims to improve the reliability of detection signals from wireless communication media that do not have a high-spec main processor. [Means for solving the problem] 【0012】 According to one aspect of the present invention, a wireless communication medium having a state detection unit for detecting the state of an object to be detected, an IC chip storing unique information for identifying the state detection unit, and a wireless communication antenna connected to the IC chip, an information processing terminal having a reading unit for reading the detection signal of the state detection unit and the unique information from the wireless communication medium, and an information processing device having the unique information and a determination algorithm linked to the unique information, wherein the information processing terminal has correction means for performing the reading of the detection signal multiple times with the reading unit and correcting the detection signal based on the read unique information and the multiple detection signals and the determination algorithm received from the information processing device. death , The information processing terminal uses the determination algorithm to set one detection signal from a plurality of detection signals.An information processing system is provided. [Effects of the Invention] 【0013】 According to this embodiment, the information processing terminal can improve the reliability of the detection signal from the wireless communication medium by performing the reading of the detection signal multiple times in the reading unit and correcting the detection signal based on the unique information read and multiple detection signals, as well as a judgment algorithm received from the information processing device. [Brief explanation of the drawing] 【0014】 [Figure 1] Figure 1 is a schematic diagram illustrating an information processing system according to the first embodiment of the present invention. [Figure 2] Figure 2 is a configuration diagram illustrating an example of a wireless communication medium according to this embodiment. [Figure 3] Figure 3 is a configuration diagram illustrating an example of an information processing terminal according to this embodiment. [Figure 4] Figure 4 is a configuration diagram illustrating an example of an information processing device according to this embodiment. [Figure 5] Figure 5 is a flowchart illustrating the processes performed in the information processing system shown as the first embodiment. [Figure 6] Figure 6 is a schematic diagram illustrating an information processing system according to a second embodiment of the present invention. [Figure 7] Figure 7 is a configuration diagram illustrating an example of an information processing terminal according to the second embodiment. [Figure 8] Figure 8 is a flowchart illustrating the processes performed in the information processing system shown as the second embodiment. [Figure 9] Figure 9 is a schematic diagram illustrating another form of wireless communication medium: a drug pack in which multiple drugs are packaged. [Modes for carrying out the invention] 【0015】 [First Embodiment] <Information Processing System> Hereinafter, the information processing system 1 according to the first embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic diagram for explaining the information processing system 1 according to the embodiment of the present invention. 【0016】 The information processing system 1 shown in FIG. 1 includes a wireless communication medium 2 attached to a product 100 as a detection target, an information processing terminal 3 capable of non-contact communication with the wireless communication medium 2, and an information processing device 4 capable of communicating with the information processing terminal 3 via a network NW. 【0017】 The information processing system 1 is a system in which a detection signal detected based on the state of the product 100 by the wireless communication medium 2 attached to the product 100 is sent to the information processing terminal 3 and corrected in the information processing terminal 3. 【0018】 Further, in the information processing system 1, a detection signal based on the state of the product 100 is acquired in the information processing terminal 3, and the detection signal is also transmitted to the information processing device 4, and the state of the product is analyzed in the information processing device 4. 【0019】 <Wireless communication medium> FIG. 2 is a configuration diagram for explaining an example of the wireless communication medium according to the present embodiment. 【0020】 As shown in FIG. 2, the wireless communication medium 2 includes an inlet base material 21, a loop antenna 22 disposed on the inlet base material 21, an IC chip 23 connected to the loop antenna 22, and a sensor 24. 【0021】 In the present embodiment, the wireless communication medium 2 is a label in which an adhesive layer is formed on the back surface of the inlet base material 21 and is used by being attached to a product 100 as a detection target. 【0022】 As the inlet base material 21, paper, synthetic resin, or engineering plastic that can be formed into a film shape can be used. As the paper, kraft paper, high-quality paper, art paper, coated paper, glossy gloss paper, thermal paper, etc. can be used. 【0023】 Furthermore, as the film, polyester, polyethylene, polypropylene, vinyl chloride, polystyrene, paper-like films made primarily from synthetic resins, etc., can be used. 【0024】 The loop antenna 22 and IC chip 23 are compatible with RFID (Radio Frequency Identification) technology, which transmits and receives information via contactless communication. 【0025】 In this embodiment, the loop antenna 22 is a wireless communication antenna that supports near-field communication (NFC) with a communication distance of about 10 cm, utilizing the HF band from 3 MHz to 30 MHz, and in particular the 13.56 MHz specific frequency band. 【0026】 The loop antenna 22 can be formed from a metal film such as copper or aluminum, conductive ink, or metal wire. The loop antenna 22 is electrically and physically connected to the IC chip 23 by baking bond using an anisotropic conductive paste or conductive film. 【0027】 An insulating layer 25 is formed on a portion of the surface of the loop antenna 22. A conductive wire portion 26 is formed on the surface of the insulating layer 25, connecting the end of the loop antenna 22 to the connection point with the IC chip 23. 【0028】 The IC chip 23 is electrically connected to the loop antenna 22 and is bonded to the surface of the inlet substrate 21 via the loop antenna 22. The IC chip 23 stores unique information (hereinafter referred to as the sensor ID) for identifying the sensor 24, which acts as a state detection unit. 【0029】 Sensor 24 is a sensor capable of detecting environmental changes as changes in the resistance value of a resistor. 【0030】 In this embodiment, the sensor 24 is activated when a reader / writer (information processing terminal 3 in this embodiment) is brought close, using the current generated in the loop antenna 22 by the electromotive force induced by the reader / writer as a current source. As a result, the sensor 24 can acquire a voltage change as a detection signal based on the change in resistance value due to the environment of the resistor. 【0031】 The sensor 24 includes temperature sensors, humidity sensors, weight sensors, shape change sensors, etc., and each is formed as a separate sensor element depending on the object to be detected. 【0032】 In this embodiment, the sensor 24 functions as a state detection unit that detects the state of the product 100 to be detected. 【0033】 By attaching the wireless communication medium 2, which has a sensor 24, to the product 100, detection signals based on the state of the product 100 can be obtained. Furthermore, the wireless communication medium 2 can transmit the sensor ID of the sensor 24 and the detection signal from the sensor 24 to the information processing terminal 3 via short-range wireless communication. 【0034】 In this embodiment, the wireless communication medium 2 comprises only a loop antenna 22 and an IC chip 23 and sensor 24 powered by a power supply obtained from the induced electromotive force excited in the loop antenna 22. It does not include an advanced circuit configuration such as a so-called CPU (Central Processing Unit) that enables conversion, processing, and analysis of signals acquired by the sensor 24. Therefore, the manufacturing cost of the wireless communication medium 2 can be reduced. 【0035】 <Information Processing Terminal> Figure 3 is a configuration diagram illustrating an example of an information processing terminal 3 according to this embodiment. 【0036】 As shown in Figure 3, the information processing terminal 3 has a network interface 31 (hereinafter referred to as NW interface 31) and a near-field wireless communication interface 32 (hereinafter referred to as NFC interface 32). 【0037】 The NW interface 31 transmits and receives information between the information processing terminal 3 and the information processing device 4 via the network NW. The NFC interface 32 functions as a reader that reads detection signals from the wireless communication medium 2 via short-range wireless communication. 【0038】 The information processing terminal 3 has a touch panel display 33. The touch panel display 33 is, for example, a liquid crystal display (LCD), and an LCD drive that activates the LCD displays the determination results regarding the status of product 100, the operating procedures for acquiring detection signals from the wireless communication medium 2 of product 100, and the determination results regarding the status of product 100. Alternatively, it accepts operation input from the user based on the displayed operating procedures. 【0039】 The information processing terminal 3 has an audio input / output unit 34. The audio input / output unit 34, although not shown, includes a circuit for converting digital data into sound, a speaker, and a microphone. 【0040】 The information processing terminal 3 has a processing unit 35. The processing unit 35 is composed of a CPU. 【0041】 The processing unit 35, as part of the CPU's functional configuration, includes a signal acquisition module 351 that acquires a detection signal from the wireless communication medium 2, a feasibility determination module 352 that determines whether or not to accept the detection signal, and a calibration module 353 that calibrates the detection signal. 【0042】 In this embodiment, these modules represent a functional configuration implemented by the CPU, but they may also be physical configurations that perform the functions of each module. 【0043】 The signal acquisition module 351 performs the process of acquiring detection signals from the sensor 24 via the NFC interface 32 multiple times. In other words, the NFC interface 32 and the signal acquisition module 351 function as acquisition means or acquisition unit for acquiring unique information and detection signals. 【0044】 The pass / fail determination module 352 determines whether the obtained multiple detection signals are valid or invalid. The pass / fail determination module 352 determines whether the variation of the multiple detection signals exceeds a certain range, or whether a predetermined number of detection signals have been acquired. 【0045】 When power is supplied to the loop antenna 22 by the induced electromotive force generated by the NFC interface 32, a stable voltage may not be obtained for the IC chip 23 and sensor 24. In addition, the detected signal may contain disturbances (noise) from other radio waves or static electricity in the wiring connecting the loop antenna 22 and the IC chip 23, or the wiring connecting the IC chip 23 and the sensor 24, or it may contain input-referred noise (transition noise) in the ADC (analog-to-digital converter). 【0046】 Since the wireless communication medium 2 does not have an advanced circuit configuration such as a CPU, it is not possible to perform filtering or noise reduction processing on the signal detected by the sensor 24. 【0047】 Therefore, in this embodiment, the calibration module 353 in the information processing terminal 3 performs calibration processing or correction processing, etc., and sets a processed signal (hereinafter referred to as a representative value). 【0048】 In this embodiment, the system includes a calibration module 353, which serves as a correction means or correction unit for correcting the detection signals based on a judgment algorithm linked to a plurality of detection signals acquired by the signal acquisition module 351 and the sensor ID. 【0049】 The calibration module 353 selects a calibration method based on the variability of multiple detection signals. For example, if the variability (standard deviation) of multiple detection signals acquired by the signal acquisition module 351 is within a predetermined range, the calibration module 353 sets the average value of all acquired detection signals as the representative value. 【0050】 The calibration module 353 sets the median of the multiple detection signals as the representative value if the variation of the multiple detection signals acquired by the signal acquisition module 351 is within a predetermined range and falls within a specific range. 【0051】 If the variation of the multiple detection signals acquired by the signal acquisition module 351 exceeds a predetermined range, the calibration module 353 discards several values ​​near the upper limit and several values ​​near the lower limit of the multiple detection signals, and sets the average value (trimmed average) of the remaining signals as the representative value. 【0052】 The calibration algorithm (sometimes referred to as the judgment algorithm) used by the calibration module 353 to perform calibration is stored in the storage unit 36, which serves as a storage means. 【0053】 The processing unit 35 transmits the multiple detection signals and processed signals used to determine the state to the information processing unit 4. 【0054】 The processing unit 35 controls the NW interface 31, NFC interface 32, touch panel display 33, and audio input / output unit 34 according to various control programs stored in the memory unit 36. 【0055】 The information processing terminal 3 has a storage unit 36. The storage unit 36 ​​includes a ROM (Read Only Memory) for storing various control programs and a RAM (Random Access Memory) as a work area for the CPU, which will be described later. An SSD (Solid State Drive) or the like can be used as the storage unit 36. 【0056】 Furthermore, the memory unit 36 ​​stores programs for executing the process of acquiring a detection signal from the wireless communication medium 2, and programs for executing the process of transmitting the detection signal to the information processing device 4, and so on. 【0057】 The memory unit 36 ​​also stores various control programs for the processing unit 35 to control the NW interface 31, NFC interface 32, touch panel display 33, and audio input / output unit 34. 【0058】 The NW interface 31, NFC interface 32, touch panel display 33, audio input / output unit 34, processing unit 35, and storage unit 36 ​​are connected to each other by an internal bus 37. 【0059】 With the above configuration, the information processing terminal 3 can perform contactless communication compliant with short-range wireless communication with the wireless communication medium 2 and acquire detection signals from the wireless communication medium 2. 【0060】 Furthermore, the information processing terminal 3 can determine the state of product 100 using detection signals acquired from the wireless communication medium 2, based on a calibration algorithm (judgment algorithm) acquired from the information processing device 4 via the NW interface 31. The information processing terminal 3 can also correct the calibration algorithm (judgment algorithm) itself based on the detection signals. Therefore, the reliability of detection signals from the wireless communication medium can be improved. 【0061】 <Information Processing Device> Figure 4 is a configuration diagram illustrating the information processing device 4 according to this embodiment. As shown in Figure 4, the information processing device 4 has a network interface 41 (hereinafter referred to as NW interface 41) for wireless connection to a network NW. As a result, the information processing device 4 functions as a so-called server that performs wireless communication with the information processing terminal 3 via the network NW. 【0062】 The information processing device 4 includes an input unit 42 for receiving input from an administrator, a display unit 43, and a processing unit 44. 【0063】 The processing unit 44 is comprised of a CPU. The processing unit 44 includes an analysis module 441, which is a correction means for analyzing the detection signal and modifying the determination algorithm based on the read detection signal. 【0064】 The analysis module 441 analyzes the detection signals sent from the information processing terminal 3. Specifically, based on the multiple detection signals sent from the information processing terminal 3 that were used to set representative values, the analysis module 441 analyzes the variance, variability trends, time-series changes (degradation), correlations (other factors, environment, temperature), etc., of the detection signals from the sensor 24. 【0065】 Furthermore, the analysis module 441 analyzes variance, variability trends, time-series trends (deterioration), correlations (other factors, environment, temperature), etc., based on representative values ​​sent from the information processing terminal 3. 【0066】 An example of the analysis of the detected signal in the analysis module 441 is as follows: 【0067】 The detection signals sent from the information processing terminal 3 over a predetermined period are aggregated at regular intervals, and the variance or standard deviation is calculated for the multiple detection signals included in each period. Then, the correlation with other factors such as temperature, humidity, and illuminance acquired during the same period is calculated. From the obtained correlation, it is determined whether the variation in the detection signals is due to fluctuations caused by the sensor 24 or to disturbances such as noise during measurement or communication noise. Furthermore, the same determination is made before or after the predetermined period, and the trend of the variation in the detection signals is analyzed over a time series over the predetermined period. 【0068】 If a single sensor 24 is equipped with multiple types of sensor elements, the analysis module 441 analyzes the correlation between these elements and the detection signals detected by other sensors. 【0069】 Furthermore, the processing unit 44 controls the NW interface 41, the input unit 42, and the display unit 43. 【0070】 The information processing device 4 has a storage unit 45 as a storage means. The storage unit 45 includes a ROM for storing various control programs and RAM as a work area for the CPU. An HDD (Hard Disk Drive) or SSD can be used as the storage unit 45. 【0071】 The memory unit 45 stores a sensor ID for identifying the sensor 24 and a judgment algorithm linked together. 【0072】 Furthermore, the memory unit 45 stores a sensor ID for identifying the sensor 24, parameters related to calibration processing for correcting the detection signal from the sensor 24, information necessary for correcting each sensor 24 (calibration information), and individual characteristic information of the sensor 24. 【0073】 Furthermore, the memory unit 45 stores detection signals acquired from the information processing terminal 3, linked to each sensor ID. The memory unit 45 also stores representative values ​​of detection signals for each type of sensor 24. 【0074】 The NW interface 41, input unit 42, display unit 43, processing unit 44, and storage unit 45 are connected to each other by an internal bus 46. 【0075】 With the above configuration, the information processing device 4 can transmit the information necessary for compensating the detection signal to the information processing terminal 3 via the network NW. It can also analyze the detection signal received from the information processing terminal 3. 【0076】 <Correction processing of detection signals in information processing systems> Next, we will explain the compensation process for the detection signal performed in the information processing system 1. 【0077】 Figure 5 is a flowchart illustrating the processes performed in information processing system 1. 【0078】 The user launches the media reading program installed on the information processing terminal 3, holds the information processing terminal 3 over the wireless communication medium 2, and starts reading. 【0079】 In step S1, the information processing terminal 3 generates an induced electromotive force in the loop antenna 22 of the wireless communication medium 2 via the NFC interface 32 and reads the sensor ID from the sensor 24. 【0080】 In step S2, the wireless communication medium 2 is activated by the induced electromotive force from the information processing terminal 3, which activates the IC chip 23 and the sensor 24, and transmits the sensor ID of the sensor 24 to the information processing terminal 3. 【0081】 In step S3, the information processing terminal 3 transmits the received sensor ID to the information processing device 4. 【0082】 In step S4, the information processing device 4 receives the sensor ID and performs a process to compare the received sensor ID with the sensor ID stored in the storage unit 45. If the received sensor ID and the sensor ID stored in the storage unit 45 can be matched, a signal indicating that the match was successful is sent to the information processing terminal 3. 【0083】 Furthermore, in step S5, the information processing device 4 transmits a calibration algorithm (judgment algorithm) associated with the sensor ID stored in the memory unit 45 to the information processing terminal 3. The information processing device 4 also transmits calibration parameters associated with the sensor ID, individual characteristic information corresponding to the sensor ID, etc., to the information processing terminal 3. 【0084】 Characteristic information is used to determine a specific range of variation. For example, if the wireless communication medium 2 equipped with the sensor 24 is a drug pack, this information includes the number of drug packets in the drug pack, the resistance values ​​of the resistors placed in the drug pack, and their variation. 【0085】 In step S4, the information processing terminal 3 receives a notification that the sensor ID sent from the information processing device 4 has been matched, and in step S6, it reads the detection signal from the wireless communication medium 2. 【0086】 In step S6, the information processing terminal 3 generates an induced electromotive force in the loop antenna 22 of the wireless communication medium 2 via the NFC interface 32 and reads the detection signal from the sensor 24. 【0087】 In step S7, the wireless communication medium 2 is activated by the induced electromotive force from the information processing terminal 3, which activates the IC chip 23 and the sensor 24, and transmits the detection signal from the sensor 24 to the information processing terminal 3. 【0088】 Next, in step S8, the information processing terminal 3 stores the detection signal acquired from the wireless communication medium 2 in the storage unit 36. 【0089】 In this embodiment, steps S6 to S8 are repeated multiple times, thereby acquiring multiple detection signals from the sensor 24. 【0090】 In step S9, the pass / fail determination module 352 in the information processing terminal 3 determines whether the obtained multiple detection signals are pass / fail. If the variation of the multiple detection signals exceeds a certain range, or if a predetermined number of detection signals have not been obtained, the pass / fail determination module 352 repeats the process from step S6. 【0091】 If the pass / fail determination module 352 determines that it has acquired a predetermined number of detection signals and that the variation of the multiple detection signals falls within a specific range, the process proceeds to step S10. 【0092】 In step S10, the calibration module 353 performs calibration or correction processing on the detection signal that is determined to be within the variation range after pass / fail determination, thereby generating a processed signal (representative value). 【0093】 The calibration module 353 selects a calibration algorithm that, when the variation (standard deviation) of multiple detection signals acquired by the signal acquisition module 351 is within a predetermined range, sets the average value of all acquired detection signals as the representative value. 【0094】 Furthermore, the calibration module 353 selects an algorithm that sets the median of the multiple detection signals as the representative value if the variation of the multiple detection signals acquired by the signal acquisition module 351 is within a predetermined range and falls within a specific range. 【0095】 Furthermore, if the variation in the multiple detection signals acquired by the signal acquisition module 351 exceeds a predetermined range, the calibration module 353 selects an algorithm that discards multiple values ​​near the upper limit and multiple values ​​near the lower limit of the multiple detection signals, and sets the average value (trimmed average) of the remaining signals as the representative value. 【0096】 In step S11, the information processing terminal 3 transmits a representative value to the information processing device 4. The information processing terminal 3 also transmits to the information processing device 4 the multiple detection signals used to set the representative value. 【0097】 In step S12, the information processing device 4 receives a representative value of the detection signal and multiple detection signals used to set the representative value, and stores them in the storage unit 45. 【0098】 In step S13, the analysis module 441 in the information processing device 4 analyzes the variance, variability trend, time series changes (degradation), correlation (other factors, environment / temperature), etc. of the detection signals from the sensor 24 based on multiple detection signals used to set representative values ​​sent from the information processing terminal 3. 【0099】 As an example of the analysis, multiple detection signals sent from the information processing terminal 3 over a predetermined period are grouped together at regular intervals, and the variance or standard deviation is calculated for the multiple detection signals included in each period. Then, the correlation with other factors such as temperature, humidity, and illuminance acquired during the same period is calculated. From the obtained correlation, it is determined whether the variation in the detection signals is due to fluctuations caused by the sensor 24 or to disturbances such as noise during measurement or communication noise. Furthermore, the same determination is made before or after the predetermined period, and the trend of the variation in the detection signals is analyzed over a time series over the predetermined period. 【0100】 Next, in step S14, the information processing device 4 modifies the calibration parameters and individual sensor characteristic information based on the analysis results. The information processing terminal 3 also issues warnings or notifications to the information processing terminal 3 as necessary. 【0101】 Through the above process, the information processing system 1 can improve the accuracy of the detection signal by calibrating the unstable detection signal acquired from the wireless communication medium 2. 【0102】 <Effects and Effects> In the information processing system 1 according to this embodiment, the wireless communication medium 2 consists only of a loop antenna 22, an IC chip 23, and a sensor 24, and does not have an advanced circuit configuration such as a so-called CPU. Therefore, when power is supplied to the loop antenna 22 by the induced electromotive force generated by the NFC interface 32, a stable voltage may not be obtained for the IC chip 23 and the sensor 24. 【0103】 In contrast, according to the information processing system 1, the calibration module 353 in the information processing terminal 3 can perform calibration or correction processing on the detection signal detected by the sensor 24 of the wireless communication medium 2 attached to the product 100, thereby setting a representative value for the detection signal. 【0104】 This makes it possible to improve the reliability of the detection signal from the sensor 24 on the wireless communication medium 2, even if a high-spec circuit cannot be configured on the wireless communication medium 2 and correction of the detection signal from the sensor 24 cannot be performed on the wireless communication medium 2. 【0105】 Furthermore, according to the information processing system 1, for example, it becomes possible to accurately perform state determination processing of product 100 using detection signals. 【0106】 According to the information processing system 1, the calibration algorithm executed by the calibration module 353 is corrected in the information processing device 4. Since the calibration algorithm itself for calibrating the detection signal can be updated, the accuracy of setting the representative value of the detection signal can be improved. 【0107】 [Second Embodiment] <Information Processing System> Hereinafter, the information processing system 10 according to the second embodiment of the present invention will be described in detail with reference to the drawings. Components having the same functions as those in the first embodiment will be given the same reference numerals and their detailed descriptions will be omitted. 【0108】 Figure 6 is a schematic diagram illustrating the information processing system 10 according to the second embodiment. 【0109】 The information processing system 10 shown in Figure 6 comprises a wireless communication medium 2 attached to a product 100 to be detected, and an information processing terminal 30 capable of contactless communication with the wireless communication medium 2. The detection signal detected by the wireless communication medium 2 attached to the product 100 is calibrated in the information processing terminal 30. 【0110】 In the information processing system 10 according to the second embodiment, an information processing device 4 that can be connected to an information processing terminal 30 via a network NW is not required. 【0111】 Figure 7 is a configuration diagram illustrating an example of an information processing terminal 30 according to the second embodiment. The processing unit 350 of the information processing terminal 30 further includes an analysis module 354 in addition to the modules of the information processing terminal 3 as a functional configuration of the CPU. In the second embodiment, the analysis module 354 may be a physical configuration. 【0112】 Figure 8 is a flowchart illustrating the processes performed in the information processing system 10. 【0113】 The user launches the media reading program installed on the information processing terminal 3, holds the information processing terminal 3 over the wireless communication medium 2, and starts reading. 【0114】 In step S101, the information processing terminal 3 generates an induced electromotive force in the loop antenna 22 of the wireless communication medium 2 via the NFC interface 32 and reads the sensor ID from the sensor 24. 【0115】 In step S102, the wireless communication medium 2 is activated by the induced electromotive force from the information processing terminal 3, which activates the IC chip 23 and the sensor 24, and transmits the sensor ID of the sensor 24 to the information processing terminal 3. 【0116】 In step S103, the information processing terminal 3 receives a sensor ID and performs a process to compare the received sensor ID with the sensor ID stored in the storage unit 36. 【0117】 If the received sensor ID can be matched with the sensor ID stored in the storage unit 36, in step S104, the information processing terminal 3 sets the determination algorithm (calibration algorithm) associated with the sensor ID stored in the storage unit 36, parameters related to the calibration algorithm, and individual characteristic information corresponding to the sensor ID. 【0118】 Next, in step S105, the information processing terminal 3 reads a detection signal from the wireless communication medium 2. The information processing terminal 3 generates an induced electromotive force in the loop antenna 22 of the wireless communication medium 2 via the NFC interface 32 and reads the detection signal from the sensor 24. 【0119】 In step S106, the wireless communication medium 2 is activated by the induced electromotive force from the information processing terminal 3, which activates the IC chip 23 and the sensor 24, and transmits the detection signal from the sensor 24 to the information processing terminal 3. 【0120】 Next, in step S107, the information processing terminal 3 stores the detection signal acquired from the wireless communication medium 2 in the storage unit 36. 【0121】 In this embodiment, the process from step S105 to step S107 is repeated multiple times, thereby acquiring multiple detection signals from the sensor 24. 【0122】 In step S108, the pass / fail determination module 352 in the information processing terminal 3 determines whether the obtained detection signals are valid or not. If the variation in the multiple detection signals exceeds a certain range, or if a predetermined number of detection signals have not been obtained, the pass / fail determination module 352 repeats the process from step S105. 【0123】 If the pass / fail determination module 352 determines that it has acquired a predetermined number of detection signals and that the variation of the multiple detection signals falls within a specific range, the process proceeds to step S109. 【0124】 In step S109, the calibration module 353 performs calibration or correction processing on the detection signal that is determined to be within the variation range after pass / fail determination, thereby generating a processed signal (representative value). 【0125】 The calibration module 353 selects a calibration algorithm that, when the variation (standard deviation) of multiple detection signals acquired by the signal acquisition module 351 is within a predetermined range, sets the average value of all acquired detection signals as the representative value. 【0126】 Furthermore, the calibration module 353 selects an algorithm that sets the median of the multiple detection signals as the representative value if the variation of the multiple detection signals acquired by the signal acquisition module 351 is within a predetermined range and falls within a specific range. 【0127】 Furthermore, if the variation in the multiple detection signals acquired by the signal acquisition module 351 exceeds a predetermined range, the calibration module 353 selects an algorithm that discards multiple values ​​near the upper limit and multiple values ​​near the lower limit of the multiple detection signals, and sets the average value (trimmed average) of the remaining signals as the representative value. 【0128】 In step S110, the information processing terminal 3 stores the representative value in the storage unit 36. 【0129】 In step S111, the information processing device 4 receives a representative value of the detection signal and multiple detection signals used to set the representative value, and stores them in the storage unit 45. 【0130】 In step S111, the analysis module 354 analyzes the variance, variability trend, time-series changes (degradation), and correlations (other factors, environment, temperature) of the detection signals from the sensor 24, based on the multiple detection signals used to set representative values. 【0131】 Furthermore, in step S111, the analysis module 354 analyzes variance, variability trends, time-series trends (deterioration), correlations (other factors, environment / temperature), etc., based on the set representative values. 【0132】 Next, in step S112, the information processing terminal 3 corrects the calibration algorithm based on the analysis results. 【0133】 Through the above process, the information processing system 10 can improve the accuracy of the signal by calibrating the unstable detection signal acquired from the wireless communication medium 2. 【0134】 <Effects and Effects> According to the information processing system 10 of this embodiment, a processed signal (hereinafter referred to as a representative value) that has undergone calibration processing or correction processing by the calibration module 353 in the information processing terminal 3 is set. 【0135】 Therefore, the detection signal detected by the sensor 24 of the wireless communication medium 2 attached to the product 100 can be acquired by the information processing terminal 3, and the detection signal can be calibrated and corrected at the information processing terminal 3. 【0136】 This makes it possible to improve the reliability of the detection signal from the sensor 24 on the wireless communication medium 2, even if a high-spec circuit cannot be configured on the wireless communication medium 2 and correction of the detection signal from the sensor 24 cannot be performed on the wireless communication medium 2. 【0137】 Furthermore, the information processing system 10 enables accurate status determination processing of product 100, for example, using detection signals. 【0138】 [Other embodiments] Although this embodiment has been described above, the above embodiment is merely one example of how the present invention can be applied, and it is not intended to limit the technical scope of the present invention to the specific configuration of the above embodiment. 【0139】 In this embodiment, the antenna provided by the wireless communication medium 2 may be a dipole antenna in addition to a loop antenna. Furthermore, the antenna may be compatible with the UHF band (300MHz to 3GHz, particularly 860MHz to 960MHz). 【0140】 In this embodiment, the sensor 24 is activated when a reader / writer (information processing terminal 3 in this embodiment) is brought close, using the current generated in the loop antenna 22 by the electromotive force induced by the reader / writer as the current source. Alternatively, a method can be applied to obtain power to activate the IC chip 23 using the action of an electric field or radio waves. 【0141】 In the embodiment, a wireless communication medium 2 equipped with a sensor 24 was described. The wireless communication medium may be a container or packaging sheet into which the sensor is incorporated. Below, a drug pack is described as another example of a wireless communication medium. 【0142】 Figure 9 is a schematic diagram illustrating another form of wireless communication medium: a drug pack (hereinafter referred to as a Press Through Pack: PTP sheet) in which multiple drugs are packaged. 【0143】 The PTP sheet 200 shown in Figure 9 is a so-called blister pack in which drug packaging sections 211a, 211b, 211c, 211d, 211e, 211f, 211g, 211h, 211i, 211j, 211k, and 211l are formed on a sheet base material 211, in which drugs such as capsules or tablets are enclosed. In addition, a loop antenna 221 is formed on a part of the sheet base material 211. An IC chip 231 is connected to the loop antenna 221. 【0144】 Resistors 241a, 241b, 241c, 211d, 211e, 211f, 211g, 211h, 211i, 211j, 211k, and 211l are positioned adjacent to each of the drug packaging sections 211a, 211b, 211c, 211d, 211e, 211f, 211g, 211h, 211i, 211j, 211k, and 241l. 【0145】 Furthermore, each of the resistors is provided with conductors 251a, 251b, 251c, 251d, 251e, 251f, 251g, 251h, 251i, 251j, 251k, and 251l that are connected to the resistor and pass through the adjacent casing. Each of these conductors is connected to the IC chip 231. 【0146】 This allows the voltage generated by energizing each resistor using the current produced in the loop antenna 221 by the induced electromotive force when a reader / writer (e.g., information processing terminal 3) is brought close to the device as a current source, to be acquired as a detection signal. 【0147】 For example, if medication is removed from any of the drug packaging sections, the corresponding wire will break, cutting off the current and resulting in a resistance value different from that of all drug packaging sections when all are energized. This allows for the detection of a drug packaging section being opened. 【0148】 In this embodiment, the processing unit 35 and the processing unit 44 may each be composed of multiple microcomputers. 【0149】 The storage unit 36 ​​is a computer-readable storage medium that records the operation program of the processing unit 35, and may be configured to be detachable from the information processing terminal 3. Similarly, the storage unit 45 may be configured to be detachable from the information processing device 4. 【0150】 In the process shown in Figure 5, if the information processing device 4 is equipped with a reader / writer for the wireless communication medium 2, all steps performed in the information processing terminal 3 and the information processing device 4 may be performed in the information processing device 4. 【0151】 Furthermore, some of the steps shown in Figure 5 may be performed on another terminal or device (not shown) connected to the network NW. 【0152】 In this embodiment, the various programs for executing each process in the information processing system 1 may be stored on a non-transient recording medium such as a CD-ROM or semiconductor memory. [Explanation of symbols] 【0153】 1.10 Information Processing Systems 2 Wireless communication medium 3. Information Processing Terminal 4. Information Processing Device 11 Inlet base material 21 Inlet base material 22 Loop Antennas 23 IC chips 24 Sensor (State Detection Unit) 25 Insulating layer 26 Conductor section 30 Information Processing Terminals 31 Network Interface (NW Interface) 32. Near Field Communication Interface (NFC Interface) 33 Touchscreen display 34 Audio Input / Output Section 35 Processing Unit 36 Storage unit (storage means) 37 Internal bus 41 Network Interface (NW Interface) 42 Input section 43 Display section 44 Processing Unit 45 Storage unit (storage means) 46 Internal bus 100 products 200 PTP sheets 211 Sheet base material 211a,211b,211c,211d,211e,211f,211g,211h,211i,211j,211k,211l Medicine packaging section 221 Loop Antenna 231 IC chips 241a,241b,241c,241d,241e,241f,241g,241h,241i,241j,241k,241l Resistor 350 Processing Unit 351 Signal acquisition module (acquisition means, acquisition unit) 352 Approval / Rejection Determination Module 353 Calibration module (correction means, correction unit) 354 Analysis Module (Correction Method) 441 Analysis Module (Correction Method)

Claims

[Claim 1] A wireless communication medium having a state detection unit for detecting the state of an object to be detected, an IC chip storing unique information for identifying the state detection unit, and a wireless communication antenna connected to the IC chip, An information processing terminal having a reading unit for reading the detection signal from the state detection unit and the unique information from the wireless communication medium, An information processing device having the aforementioned unique information and a determination algorithm linked to the aforementioned unique information, Equipped with, The information processing terminal has a correction means that performs the reading of the detection signal multiple times in the reading unit and corrects the detection signal based on the unique information and multiple detection signals read and the determination algorithm received from the information processing device. The aforementioned information processing terminal is Using the aforementioned determination algorithm, one detection signal is selected from a plurality of detection signals. Information processing system. [Claim 2] A wireless communication medium having a state detection unit for detecting the state of an object to be detected, an IC chip storing unique information for identifying the state detection unit, and a wireless communication antenna connected to the IC chip, An information processing terminal having a reading unit for reading the detection signal from the state detection unit and the unique information from the wireless communication medium, An information processing device having the aforementioned unique information and a determination algorithm linked to the aforementioned unique information, Equipped with, The information processing terminal has a correction means that performs the reading of the detection signal multiple times in the reading unit and corrects the detection signal based on the unique information and multiple detection signals read and the determination algorithm received from the information processing device. The aforementioned information processing device is The system includes a modification means for modifying the determination algorithm based on the detected signal that has been read. Information processing system. [Claim 3] An information processing system according to claim 1 or 2, The aforementioned information processing device is The system includes a storage means for storing the detection signal, the unique information, and the determination algorithm in association. Information processing system. [Claim 4] The information processing system according to claim 3, The storage means stores the unique information and the history of the detection signal in association. Information processing system. [Claim 5] An information processing system according to claim 1 or 2, The aforementioned state detection unit does not include a CPU (Central Processing Unit). Information processing system. [Claim 6] A wireless communication medium having a state detection unit for detecting the state of an object to be detected, an IC chip storing unique information for identifying the state detection unit, and a wireless communication antenna connected to the IC chip, An information processing terminal having the aforementioned unique information and a determination algorithm linked to the aforementioned unique information, Equipped with, The information processing terminal has correction means that performs the reading of the detection signal by the state detection unit multiple times and corrects the detection signal based on the multiple detection signals and the determination algorithm. The aforementioned information processing terminal is Using the aforementioned determination algorithm, one detection signal is selected from a plurality of detection signals. Information processing system. [Claim 7] A wireless communication medium having a state detection unit for detecting the state of an object to be detected, an IC chip storing unique information for identifying the state detection unit, and a wireless communication antenna connected to the IC chip, An information processing terminal having the aforementioned unique information and a determination algorithm linked to the aforementioned unique information, Equipped with, The information processing terminal has correction means that performs the reading of the detection signal by the state detection unit multiple times and corrects the detection signal based on the multiple detection signals and the determination algorithm. The aforementioned information processing terminal is The system includes a modification means for modifying the determination algorithm based on the detected signal that has been read. Information processing system. [Claim 8] An information processing system according to claim 6 or 7, The aforementioned information processing terminal is The system includes a storage means for storing the detection signal, the unique information, and the determination algorithm in association. Information processing system. [Claim 9] The information processing system according to claim 8, The storage means stores the unique information and the history of the detection signal in association. Information processing system. [Claim 10] An information processing system according to claim 6 or 7, The aforementioned state detection unit does not include a CPU (Central Processing Unit). Information processing system. [Claim 11] An acquisition means that acquires the unique information from a wireless communication medium having a state detection unit that detects the state of the object to be detected, an IC chip storing unique information for identifying the state detection unit, and a wireless communication antenna connected to the IC chip, and performs the reading of the detection signal by the state detection unit multiple times, The acquisition means includes a correction means for correcting the detection signals based on a determination algorithm linked to a plurality of detection signals acquired by the acquisition means and the unique information, Using the aforementioned determination algorithm, one detection signal is selected from a plurality of detection signals. Information processing system. [Claim 12] Acquisition means for acquiring the unique information from a wireless communication medium having a state detection unit for detecting the state of a target, an IC chip storing unique information for identifying the state detection unit, and a wireless communication antenna connected to the IC chip, and for performing the reading of the detection signal by the state detection unit multiple times, The acquisition means includes a correction means for correcting the detection signals based on a determination algorithm linked to a plurality of detection signals acquired by the acquisition means and the unique information, The system further includes a modification means for modifying the determination algorithm based on the detected signal that has been read. Information processing system. [Claim 13] An information processing system according to claim 11 or 12, The system includes a storage means for storing the detection signal, the unique information, and the determination algorithm in association. Information processing system. [Claim 14] The information processing system according to claim 13, The storage means stores the unique information and the history of the detection signal in association. Information processing system. [Claim 15] An information processing system according to claim 11 or 12, The aforementioned state detection unit does not include a CPU (Central Processing Unit). Information processing system. [Claim 16] An acquisition unit acquires the unique information from a wireless communication medium having a state detection unit that detects the state of the object to be detected, an IC chip that stores unique information for identifying the state detection unit, and a wireless communication antenna connected to the IC chip, and performs the reading of the detection signal by the state detection unit multiple times. The system includes a correction unit that corrects the detection signals based on a plurality of detection signals acquired by the acquisition unit and a determination algorithm linked to the unique information, Using the aforementioned determination algorithm, one detection signal is selected from a plurality of detection signals. Information processing terminal. [Claim 17] An acquisition unit that acquires the unique information from a wireless communication medium having a state detection unit for detecting the state of an object to be detected, an IC chip storing unique information for identifying the state detection unit, and a wireless communication antenna connected to the IC chip, and performs the reading of the detection signal by the state detection unit multiple times, The system includes a correction unit that corrects the detection signals based on a plurality of detection signals acquired by the acquisition unit and a determination algorithm linked to the unique information, The system includes a modification means for modifying the determination algorithm based on the detected signal that has been read. Information processing terminal. [Claim 18] A wireless communication medium having a state detection unit for detecting the state of the target to be detected, an IC chip storing unique information for identifying the state detection unit, and a wireless communication antenna connected to the IC chip, acquires the unique information, and performs the reading of the detection signal by the state detection unit multiple times. Based on the multiple detection signals acquired and the determination algorithm linked to the unique information, the detection signals are corrected. Using the aforementioned determination algorithm, one detection signal is selected from a plurality of detection signals. Information processing methods. [Claim 19] A wireless communication medium having a state detection unit for detecting the state of the target to be detected, an IC chip storing unique information for identifying the state detection unit, and a wireless communication antenna connected to the IC chip, acquires the unique information, and performs the reading of the detection signal by the state detection unit multiple times. Based on the multiple detection signals acquired and the determination algorithm linked to the unique information, the detection signals are corrected. The system includes a modification means for modifying the determination algorithm based on the detected signal that has been read. Information processing methods. [Claim 20] A computer program executable by a device that acquires a detection signal from a state detection unit and the unique information from a wireless communication medium having a state detection unit that detects the state of a target to be detected, an IC chip storing unique information for identifying the state detection unit, and a wireless communication antenna connected to the IC chip, A procedure for reading the detection signal multiple times, A procedure for correcting the detection signals based on a determination algorithm linked to a plurality of the detection signals and the unique information, A procedure for setting one detection signal from a plurality of detection signals using the aforementioned determination algorithm, A program to be executed by the aforementioned computer. [Claim 21] A computer program executable by a device that acquires a detection signal from a state detection unit and the unique information from a wireless communication medium having a state detection unit that detects the state of a target to be detected, an IC chip storing unique information for identifying the state detection unit, and a wireless communication antenna connected to the IC chip, A procedure for reading the detection signal multiple times, A procedure for correcting the detection signals based on a determination algorithm linked to a plurality of the detection signals and the unique information, A procedure for modifying the determination algorithm based on the detected signal that was read, A program to be executed by the aforementioned computer.

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