Information processing system, and information processing method

Abstract

To conveniently detect whether or not a person is seated on a seating appliance.SOLUTION: An embodiment of the present invention is an information processing system comprising: a first wireless tag attached to a seating face or a backrest face of a seating appliance to store unique tag identification information; and an information processing device comprising a storage unit which associates a user of the seating appliance with the tag identification information of the wireless tag attached to the seating appliance to be stored. The information processing device comprises: an acquisition unit which acquires the tag identification information when the first wireless tag transmits a signal including the tag identification information; and a control unit which determines whether or not the user is seated on the seating appliance on the basis of whether or not the tag identification information is acquired.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an information processing system, an information processing method, and a program. [Background technology]

[0002] Conventionally, there has been a technology to detect whether a person is sitting on a seating device such as a chair (sitting detection technology) ) have been proposed. Seating detection technology is used to determine whether employees are seated or not in the workplace, and in railways and other areas. It can be used for a wide range of purposes, such as determining whether passengers are present or absent on buses and other public transport. For example, Patent Document 1 describes a system that detects whether a player is sitting or leaving a seat at a gaming machine. The system is composed of peripheral devices arranged around the gaming table and infrared devices installed on the peripheral devices that are directed in the direction of the chair. The infrared sensor detects the presence or absence of a person based on the temperature information from the infrared sensor. A person detection processing unit and a chair detection unit that detects the presence or absence of a chair based on the temperature information of an infrared sensor. The detection processing unit receives the detection results of the person detection processing unit and the chair detection processing unit, and determines the surrounding conditions of the gaming machine. and a state determination processing unit that determines whether or not the state of the vehicle is within the predetermined range. Patent Document 2 also describes a capacitance type sensor provided in an insulating film embedded in a seat. This sensor detects the presence of an occupant in the seat. The occupant detection is performed by detecting the capacitance that changes in response to the pressure. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2018-000425 [Patent Document 2] Japanese Patent Application Laid-Open No. 2006-226823 Summary of the Invention [Problem to be solved by the invention]

[0004] However, conventional seat detection technology is complex and expensive, making it difficult to apply to general use. For example, the system described in Patent Document 1 uses an infrared sensor to detect the seated person. The more seats there are to be monitored, the more difficult it becomes to detect temperature information from the system. The capacitance type sensor described in Patent Document 2 uses an insulating film It must be embedded in the seat, making it less versatile.

[0005] Therefore, the present invention is capable of detecting whether or not a person is seated on a seating implement more easily than conventional methods. The purpose is to [Means for solving the problem]

[0006] In one aspect of the present invention, a unique tag identification is attached to the seat or back of the seating equipment. A first wireless tag that stores information, a user of the seating equipment, and a wireless device attached to the seating equipment. an information processing device having a storage unit that stores tag identification information of the line tag in association with the tag identification information; When the first wireless tag transmits a signal including the tag identification information, the information processing device an acquisition unit that acquires the tag identification information; and a control unit that determines whether the user is seated on the seating equipment; It is a logical system. [Effects of the Invention]

[0007] According to one aspect of the present invention, it is possible to more easily detect whether or not a person is seated on a seating device than in the past. You can find out. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a diagram illustrating an example of application of an embodiment of a seat leaving / taking-up detection system. [Figure 2] FIG. 2 is a front view of the chair shown in FIG. 1. [Figure 3] FIG. 2 is a diagram illustrating an example of a data configuration of a seating presence database. [Figure 4] FIG. 2 is a block diagram showing the internal configuration of each device of the seat leaving / taking-up detection system of one embodiment. [Figure 5] FIG. 10 is a diagram illustrating the configuration of an advertising packet transmitted from an IoT tag. [Figure 6] FIG. 10 is a diagram illustrating measurement results for a tag attached to a seat surface. [Figure 7] 10A and 10B are diagrams illustrating measurement results for a tag attached to the backrest surface. [Figure 8] 2 is an example of a rear view of the chair shown in FIG. 1. [Figure 9] 10A and 10B are diagrams illustrating measurement results for a tag attached to the rear surface of a backrest. DETAILED DESCRIPTION OF THE INVENTION

[0009] The following describes a seating / leaving detection system, which is an embodiment of an information processing system of the present disclosure, with reference to FIG. This will be explained with reference to the surface. In this disclosure, "seating equipment" refers to equipment provided in a specific area for people to sit on. Examples of such seating equipment include chairs and sofas. In the following description, a chair is a type of seating equipment. In addition, the seating equipment will be described as a single-person chair, but this is not a limitation. It will not be done.

[0010] In one embodiment, to detect whether a person is seated in the chair, a sensor Io In one embodiment, a T-tag (an example of a wireless tag) is attached. ings) tag (hereinafter simply referred to as "tag") is an environmental tag that generates electricity based on the radio waves in the surrounding environment. The present invention is a power-generating communication device that operates without a battery, but is not limited to this. The communication distance of the tag shown is not limited and can be changed or adjusted as appropriate depending on the application. .

[0011] The tag should be attached to the chair so that it can be attached to the user when the user is seated. Any position that is in contact with or close to the chair may be used, such as the seat or back of a chair. When the user is seated, the tag will be covered by a part of the user's body, and radio waves will be transmitted from the tag. On the other hand, the radio waves emitted from the tag will be weak. When the user is not seated, the tag can transmit radio waves normally. The signal emitted from the tag contains the tag ID (an example of tag identification information) that is unique to the tag. Therefore, the signal transmitted from the tag can be received and the tag ID can be obtained from the signal. In this case, it can be determined that the user is not sitting in the chair corresponding to the tag, and the tag ID can be obtained. If this is not possible, it can be determined that the user is seated in the chair corresponding to the tag. In one embodiment, the signal emitted from the tag is transmitted to the area where the seat occupancy detection system is applied. In another embodiment, the signal emitted by the tag is Received by the user's device (e.g., smartphone, tablet, etc.) It is reliable. In one embodiment, when a wireless device or user terminal within the area receives a tag ID from a tag, If the tag ID is not available, the server sends the received tag ID to the server connected to the network. Based on whether or not D was acquired, the user's access to the specific chair associated with the tag ID is confirmed. Decide whether to sit or leave.

[0012] Hereinafter, the system configuration of the seat leaving / leaving detection system 1 according to one embodiment will be described with reference to FIGS. 1 to 3. FIG. 1 is a diagram showing an application example of a seat leaving / taking-up detection system 1 according to an embodiment. In a workplace where multiple chairs are arranged, users (e.g., employees) who use chairs ) is configured to detect when the person leaves or sits down. Referring to FIG. 1, the area AR to which the seat leaving / taking-up detection system 1 is applied has a plurality of chairs 3. In Area AR, users are assigned to each chair 3 in advance. Users are seated in the chairs 3 assigned to them as needed.

[0013] 2 is a front view of the chair shown in FIG. 1. The chair 3 has a seat portion 31 and a backrest portion 3 As shown in FIG. 2, a tag T1 is attached to the seat portion 31, and a tag T2 is attached to the backrest portion 32. The tags T1 and T2 are examples of first wireless tags. be.

[0014] As will be described in detail later, the tags T1 and T2 are, for example, environmentally-generated power sources that generate power based on radio waves from the surrounding environment. The tags T1 and T2 are communication devices that do not have batteries. A temperature sensor for detecting the temperature can be built in. The tags T1 and T2 are tagged with a unique tag I at predetermined intervals (for example, every short time, about 1 to 10 seconds). In one embodiment, the device is configured to transmit a signal (a packet, which will be described later) containing D. The signal emitted from each tag includes a tag ID that is unique to the tag that emitted the signal. In this mode, the signal emitted by each tag contains the temperature and It includes the detected values ​​of the sensors (referred to as "sensor data"). In the following, we will explain the case where the signal sent from each tag contains the tag ID and sensor data. In the following explanation, the tag ID and sensor data will be collectively referred to as "tag information." That's what they say.

[0015] The communication distance between the tags T1 and T2 is not limited, but is, for example, in the range of 3 to 10 meters. Each tag T1, T2 is configured to perform wireless communication with low power consumption, and the communication protocol is Examples of such technologies include Bluetooth Low Energy (registered trademark) (hereinafter referred to as BLE), Bluetooth (registered trademark) BLE (trademark), ZigBee (registered trademark), etc. In the following, we will assume that communication is performed using BLE. An example will be given. If tags T1 and T2 comply with the BLE standard, they advertise to surrounding BLE devices. Broadcast Ising packets (described later). Tags T1 and T2 send The packet contains tag information (tag ID and sensor data).

[0016] As shown in FIG. 1, the seating / leaving detection system 1 includes a wireless device 2 and a network The network NW includes a management server 5 that can communicate with the network NW. For example, LAN (Local Area Network), WAN (Wide Area Network), mobile communication network Network, Internet, etc. The wireless device 2 receives packets from tags T1 and T2 attached to the chair 3 via BLE communication. Wireless device 2 also functions as a BLE wireless terminal that receives packets from each tag. When the packet is received, the tag ID and sensor data contained in the received packet are sent to the management server 5. Send. In a situation where packets can be transmitted normally, tags T1 and T2 are sent at predetermined intervals as described above. In response, the wireless device 2 also transmits the tag information to the management server 5 at predetermined intervals. Send.

[0017] The tags T1 and T2 are in contact with or in close proximity to a part of the user's body when the user sits on the chair 3. It is installed in a position where When the user is seated on the chair 3, the tag T1 and the tag T2 are located on the seat surface. By covering tag T2 on the backrest, the tags will not be able to transmit radio waves properly. In this case, the wireless device 2 cannot receive packets from the tags. If the person in charge is not seated, the tag information that should be received periodically cannot be received from the wireless device 2. From this, it can be seen that the user of the corresponding chair 3 is seated. On the other hand, when the user leaves chair 3, tags T1 and T2 are exposed and each tag is correctly Since it can always transmit radio waves, wireless device 2 receives packets from each tag and The tag information contained in the packet is sent to the management server 5. The management server 5 periodically By receiving the information from the wireless device 2, it is possible to know that the user of the corresponding chair 3 has left the seat. do.

[0018] In FIG. 1, the user terminal 4 is an information processing terminal carried by a user, and is a non-limiting example. For example, laptop computers, tablet devices, and smartphones Examples include: In one embodiment, the user terminal 4 may have, for example, a BLE-enabled application and It can communicate with the management server 5 via the work NW and functions in the same way as the wireless device 2. That is, the user terminal 4 receives packets from tags T1 and T2 and The tag information included in the tag may be transmitted to the management server 5. That is, in the seat leaving / taking-up detection system 1, the management server 5 detects tags T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22, T23, T24, T25, T26, T27, T28, The route for acquiring tag information of T2 is at least (i) the route from wireless device 2 to the tag (ii) a route through which the user terminal 4 receives tag information from the tag and transmits it to the management server 5; The information is received from the management server 5 via one of the routes, and the information is transmitted to the management server 5 via one of the routes. It will not be done.

[0019] The management server 5 manages the seating status of each chair 3 in the area AR of FIG. This is an example of an information processing device. The management server 5 includes a seating / non-seating database as shown in FIG. The seating database contains one record for chair 3 in area AR. Each record contains the tag IDs of tags T1 and T2 attached to the corresponding chair 3, The user ID, which is the identification information of the user assigned to the corresponding chair 3, and the In child 3, information indicating whether the user is seated or not ("seated" or "away") is displayed. The information indicating the seat is associated with the information indicating the seat. The management server 5 responds depending on whether tag information is acquired from the wireless device 2 or the user terminal 4. The seating / leaving information of the records is updated accordingly.

[0020] Next, referring to FIG. 4 and FIG. 5, the configuration of each device of the seat leaving / leaving detection system 1 according to one embodiment will be described. explain. FIG. 4 is a block diagram showing the internal configuration of each device in the seat leaving / leaving detection system 1 of this embodiment. Figure 5 shows the structure of the advertising packets sent from tags T1 and T2. be. In the following, when referring to matters common to tags T1 and T2, we will use the phrase " It is written as "Tag T".

[0021] Referring to FIG. 4, the tag T includes, for example, a control unit 11, an antenna 12, a harvesting The power supply circuit 10 includes a power supply 13, a voltage control unit 14, an RF transceiver 15, and a sensor 16. Although the overall shape of the tag T is not shown, for example, an antenna 12 and a sensor 16 are formed. A thin film that connects a conductive metal foil with a predetermined pattern and an IC chip that is connected to the metal foil. The IC chip contains a control unit 11, a harvesting unit 13, and a voltage A control unit 14 and an RF transceiver 15 are mounted.

[0022] The control unit 11 has a microprocessor and a memory 111, and controls the entire tag T. The memory 111 is a RAM (Random Access Memory) or a ROM (Read Only Memory). It contains the program executed by the microprocessor as well as the unique identification information of the tag T. The tag ID, the sensor data output by the sensor 16, and the like are stored.

[0023] The harvesting unit 13 detects the temperature based on radio waves in the surrounding environment (for example, radio waves from surrounding wireless communication). The generated power is stored in the internal energy storage 131. In this embodiment, the harvesting unit 13 stores, for example, the signal received by the antenna 12. The radio signal is converted into a DC voltage and stored in the energy storage 131. The storage 131 is, for example, a capacitor. In the case of a capacitor, The capacitor may be formed on a silicon substrate (i.e., an on-die capacitor).

[0024] The radio waves used by the harvesting unit 13 for energy harvesting are multiple in a wide range of frequency bands. For example, mobile communication systems such as 3G to 5G Radio waves from wireless communication in the frequency bands used by Bluetooth (registered trademark), Wi-Fi (registered trademark) Radio waves generated by wireless communication in the frequency bands used in communication standards such as ZigBee (registered trademark) ) and Thread, etc., are used in wireless communication in the 2.4 GHz band. Wireless frequency bands used in ID (e.g., 900MHz band, 13.56MHz band) Examples include radio waves used for communication. The radio waves shown here are generally applicable in almost all areas. The tag T then harvests energy from the harvesting unit 13 based on radio waves in the surrounding environment. Therefore, there is no need to install a battery in the tag T, and the system In addition, since there is no need to install a battery, This eliminates the need to replace the tag, so even if the tag exists, the tag ID cannot be obtained. This problem does not occur.

[0025] The voltage control unit 14 supplies an operating voltage to the control unit 11 and the RF transceiver 15. The voltage of the energy storage 131 is monitored, and the power mode is adjusted according to the monitoring result. When the voltage of the energy storage 131 is equal to or lower than a predetermined threshold, The power mode is set to the first mode in which only the minimum circuit is operated, and at this time, the control unit 11 and R The transceiver 15 does not generate packets or transmit radio signals, as will be described later. When the voltage of the energy storage 131 is charged to a predetermined threshold or more, the power mode The second mode is set to execute a normal processing routine, and the control unit 11 and the RF transceiver The server 15 performs various processes including packet generation and radio signal transmission.

[0026] It should be noted that the control unit 11 may be configured to operate the energy storage even when the power mode is the first mode, for example. When the voltage of the storage 131 is charged above a predetermined threshold, it is detected by the sensor 16. The sensor data may be stored in the memory 111 together with the data on the detection time. When the power mode is switched from the first mode to the second mode, the control unit 11 A packet including the sensor data and the detection time data stored in the memory 111 is generated and sent. You can believe it.

[0027] The sensor 16 detects the ambient temperature data of the tag T (i.e., sensor data). The data is temporarily stored in memory 111 for inclusion in packets, which will be described later.

[0028] When the power mode is the second mode, the control unit 11 performs advertising according to the BLE protocol. Generates a sizing packet. Advertising packets are used to realize broadcast communication in BLE. This is a packet sent using the advertising channel, and has the packet structure shown in Figure 5. The advertising packet will be referred to simply as a "packet" below where appropriate.

[0029] In FIG. 5, the preamble and address access are each predetermined fixed values. CRC is a cyclic check code that is used to check the packet payload (i.e., advertising channel A test calculated using a predetermined generating polynomial for a PDU (protocol data unit) It's data. An advertising channel PDU (hereinafter simply referred to as "PDU") consists of a header and a payload. The payload consists of an ADV address and ADV data. The address is the address of the advertiser (i.e., the tag T that is the entity that broadcasts), but The ADV data may be a random value set for each transmission so as not to identify the sender. Advertiser data (broadcast data), tag ID and sensor 1 This corresponds to tag information including sensor data output by 6.

[0030] It is preferable that the control unit 11 encrypts the PDU. If necessary, you can use AES (Advanced Encryption Standard) with a key length of 128 bits. .

[0031] The RF transceiver 15 receives a predetermined digital signal for a packet (baseband signal) to be transmitted. After performing quadrature modulation (e.g., GFSK (Gaussian Frequency Shift Keying)), The high-frequency signal (in the case of BLE, a signal in the 2.4 GHz frequency band) is transmitted to antenna 12. Send to.

[0032] The antenna 12 includes a transmitting antenna and a power generating antenna. The receiver 15 transmits a high-frequency radio signal (packet). The antenna receives, for example, radio waves from the surrounding environment and cooperates with the harvesting unit 13 to transmit the radio waves. It functions as a

[0033] As shown in FIG. 4, the user terminal 4 includes, for example, a control unit 41, a storage 42, an operation input The device includes a communication unit 43, a display unit 44, a first communication unit 45, and a second communication unit 46.

[0034] The control unit 41 is mainly composed of a microprocessor and controls the entire user terminal 4. do. In one embodiment, the control unit 41 controls the BLE-compatible application stored in the storage 42. Load and run the application. The storage 42 is a storage device such as an SSD (Solid State Drive), and Stores various programs executed by the control unit 41, such as E-compatible applications. .

[0035] The operation input unit 43 receives operation inputs from the user to execute various programs. The touch panel input unit is an input interface provided on the display panel of the display unit 44. may be. The display unit 44 includes a display panel such as an LCD and a drive circuit for the display panel. The results of the program execution by the unit 41 are displayed.

[0036] The first communication unit 45 performs wireless communication with an object in a communication range narrower than that of the second communication unit, for example. For example, if tag T is configured to receive packets broadcast by There are.

[0037] The second communication unit 46 is a communication interface for communicating with the management server 5 via the network NW. In one embodiment, the control unit 41 receives a signal from the tag T via the first communication unit 45. The control unit 41 further receives a packet from the tag T and acquires tag information. The logging information is transmitted to the management server 5 via the second communication unit 46 .

[0038] As shown in FIG. 4, the management server 5 includes, for example, a control unit 51, a storage 52, and a communication It has a signal section 53. The control unit 51 is mainly configured with a microprocessor and controls the entire management server 5. do. The storage 52 (an example of a storage unit) is a large-scale storage device such as an HDD (Hard Disk Drive). and stores a seating and leaving database. The communication unit 53 is a communication interface for communicating with the wireless device 2 and the user terminal 4. It functions as a

[0039] The control unit 51 executes the server program to receive a packet containing a tag T and a tag ID. When the tag ID is transmitted, it functions as an acquisition unit that acquires the tag ID via the wireless device 2 or the user terminal 4. It works. The control unit 51 executes the server program to determine whether or not the tag ID has been acquired. Then, it is determined whether the user is seated in the corresponding chair 3 or not, and the seating status is recorded in the seating status database (see FIG. 3). ) to update the

[0040] Specifically, the seating status database is updated as follows. The tags T1 and T2 are attached to the seat and back of each chair 3 in the area AR. 2 broadcasts packets at predetermined intervals (for example, every short time of 1 to 10 seconds). When the wireless device 2 or the user terminal 4 receives a packet, the packet contains The wireless device 2 or the user transmits the tag information (tag ID and sensor data) to the management server 5. If the user terminal 4 cannot receive the packet, the wireless device 2 or the user terminal 4 notifies the management server 5 Send nothing to Therefore, the control unit 51 of the management server 5 may, for example, detect the same tag a predetermined number of times or more within a predetermined time period. When an ID is received, it is determined that a tag ID has been acquired, and the relevant ID is entered in the seat / seat leaving database. The seating / non-seat information corresponding to the tag ID is set to "Absent." Conversely, if the same tag ID is used within a specified time, If the message cannot be received, or if it can be received but the number of times is less than the predetermined number, The seating / leaving information corresponding to the tag ID is set to "seated." If a tag ID is received once, or if a tag ID cannot be received once, You can rewrite the seating information based on whether or not you have acquired the tag ID. However, by determining whether or not to acquire the tag ID based on the number of times it is received within a given time, The accuracy of seating information can be improved.

[0041] Next, referring to Figs. 6 and 7, the seat and back of each chair 3 are attached to The measurement results for the tags T1 and T2 will be explained. FIG. 6 is a diagram illustrating the measurement results for the tag T1 attached to the seat of the chair 3. 7 is a diagram illustrating the measurement results for the tag T2 attached to the back of the chair 3. In Fig. 6 and Fig. 7, tags T1 and T2 are attached to a chair 3 as shown below. The person repeatedly leaves and sits down every 15 minutes, and the tag information of tags T1 and T2 is stored in the management server 5. The reception results (reception frequency, temperature) are shown here. The reception frequency is measured for each period (approximately 15 minutes). ) shows the average number of times tag information is received per minute.

[0042] Period P0 (time t0 to time t1): Seated Period P1 (between time t1 and t2): Absent Period P2 (between times t2 and t3): Seated Period P3 (between times t3 and t4): Absent Period P4 (between times t4 and t5): Seated Period P5 (between t5 and t6): Absent Period P6 (between times t6 and t7): Seated Period P7 (between t7 and t8): Absent

[0043] As shown in FIGS. 6 and 7, the management server 5 monitors the user's seating time (P0, P2 ,P4,P6) can hardly receive tag information of tags T1 and T2, while During the periods when the person is away (P1, P3, P5, P7), tag information for tags T1 and T2 is received. Therefore, the frequency of receiving tag information is compared with a predetermined threshold. This makes it possible to determine whether the user is sitting or leaving their seat.

[0044] 6 and 7, immediately after the user leaves the desk, at times t1, t3, t5, and t In step 7, the management server 5 can immediately receive tag information and the tags T1, T The temperature indicated by the sensor data from chair 2 is high, and the temperature indicated by the sensor data from chair 3 is cold. It can be seen that the temperature gradually decreases as the temperature is lowered.

[0045] As described above, in the seating / leaving detection system 1 according to one embodiment, The tags T1 and T2 are small and operate with low power consumption, and send packets containing at least the tag ID. The management server 5 transmits the tag ID via the wireless device 2 or the user terminal 4. The management server 5 is configured to acquire the tag ID based on whether or not the tag ID has been acquired. Based on this, it is determined whether the user of the chair 3 is seated on the chair 3. According to the seating / leaving detection system 1, the seat or back of each chair 3 in the area AR By simply attaching a tag, it is possible to check whether a user is seated on chair 3 more easily than before. It can be detected.

[0046] As shown in Figures 6 and 7, immediately after the user who was sitting on chair 3 leaves the chair, The temperature of the seat and backrest rises. Since part of the body covers the seat tag T1 and the back tag T2, each tag emits packets normally. However, immediately after the user leaves the desk, each tag can send packets normally. As the temperature increases, the sensor data included in the packet indicates a high temperature. If the sensor data included in the tag information acquired by the management server 5 indicates a value higher than a predetermined temperature, In this case, it is possible to more accurately determine that a passenger, not luggage, was seated. can be done.

[0047] In one embodiment, as shown in FIG. 8, a tag T3 for measuring room temperature in an area AR, T4 may be attached to chair 3. Figure 8 shows a rear view of chair 3. In Figure 8, 2 However, this is not the only option and a single tag may be attached to chair 3. In addition, in FIG. 8, tags T3 and T4 are attached to the back of the backrest 32 of the chair 3. However, the location of the tag is not limited to this. Tags T3 and T4 may be attached anywhere as long as they are not affected by temperature. For example, alternative locations include the legs of the chair 3 and the side of the backrest 32. T4 are examples of the second wireless tag. The tags T3 and T4 are attached to the chair 3 at positions where the user's body does not come into contact with them. Therefore, the management server 5 can receive tag information regardless of whether the user is seated or not.

[0048] As mentioned above, immediately after a seated user leaves the seat, the data is acquired from tags T1 and T2. The temperature value indicated by the sensor data is higher than the room temperature. The temperature value indicated by the sensor data obtained from T1 or tag T2 is If the temperature value indicated by the sensor data obtained from the It may be determined that the user is seated. It is more accurate than judging based only on the temperature indicated by the data, and It can be concluded that there was.

[0049] In Figure 9, tags T3 and T4 are attached to chair 3, and the sensor data is collected in the same way as tags T1 and T2. As shown in FIG. 9, the temperature indicated by the temperature sensor was measured during the entire time period from t0 to t8. The tag information of tags T3 and T4 can be received, and the temperature indicated by the sensor data from tags T3 and T4 can be The temperature ranged from 17.5 to 20 degrees Celsius, which is roughly the same as the room temperature, throughout the entire time period. At times t1, t3, t5, and t7 immediately after leaving the desk, the sensor data from tags T1 and T2 The temperature indicated by the sensor data from tags T3 and T4 is significantly higher than the temperature indicated by the sensor data from tags T4 and T5. It was.

[0050] The above-mentioned tags T1 and T2 are energy-harvesting wireless tags that operate by obtaining energy from surrounding radio waves. Because it is a wire tag, it is suitable for long-term operation. However, the wireless tag that is used is an energy harvesting tag. The present invention is not limited to RFID tags of this type, but may also be applied to RFID tags that operate in the UHF band. The wireless device 2 may be provided with a reader / writer device for communicating with the RFID tag.

[0051] The above is a description of the information processing system, the information processing method, and the program according to the present invention. However, the present invention is not limited to the above-described embodiment. Various improvements, modifications, and combinations of the above embodiments may be made without departing from the spirit and scope of the present invention. is possible. [Explanation of symbols]

[0052] 1. Seat departure detection system T1, T2, T3, T4... Tags 11...Control unit 111...Memory 12...Antenna 13...Harvesting section 131...Energy Storage 14...Voltage control section 15...RF transceiver 16...Sensor 2...Wireless device 21...Control unit 22...Antenna 23...RF transceiver 24…Communications Department 3. Chair 31... Seat part 32...Backrest 4...User terminal 41...Control unit 42…Storage 43...Operation input section 44…Display section 45...1st Communications Department 46...Second Communications Department 5...Administration Server 51...Control unit 52…Storage 53…Communications Department NW...Network

Claims

1. A first wireless device attached to the seat or back of the seating equipment and storing unique tag identification information. Line tags and The user of the seating equipment is associated with the tag identification information of the wireless tag attached to the seating equipment. an information processing device having a storage unit for storing the information; Equipped with The information processing device includes: When the first wireless tag transmits a signal including the tag identification information, the tag identification information an acquisition unit that acquires the information; Based on whether or not the tag identification information is acquired, the user is seated on the seating equipment. and a control unit that determines whether Information processing system.

2. When the number of times that the tag identification information is received within a predetermined time is equal to or greater than a predetermined value, the control unit and determining that the tag identification information has been acquired.

2. An information processing system according to claim 1.

3. the first wireless tag operates by obtaining energy from surrounding radio waves; 3. An information processing system according to claim 1 or 2.

4. the first wireless tag has a sensor for detecting temperature, The control unit determines whether the user is seated on the seating equipment based on the detection information of the sensor. determine whether 4. An information processing system according to claim 1.

5. A sensor for detecting temperature is attached to the seating equipment at a position not close to the user. a second wireless tag having a sensor and storing unique tag identification information; The control unit detects the temperature detected by the first wireless tag as the temperature detected by the second wireless tag. If the detected temperature is higher than the temperature, it is determined that the user is seated on the seating equipment. 、 5. An information processing system according to claim 4.

6. An information processing method between a wireless tag and an information processing device, comprising: The wireless tag is attached to the seat or back of the seating equipment and stores unique tag identification information. Remember, The information processing device is configured to communicate with a user of the seating equipment and a wireless tag attached to the seating equipment. a storage unit that stores tag identification information in association with the tag identification information; The information processing method includes: a step of the wireless tag transmitting a signal including the tag identification information; The information processing device acquires the tag identification information included in the signal transmitted by the wireless tag. A step of determining whether the user is seated on the seating equipment based on whether the user has and, Information processing methods.

7. In an information processing device that processes information contained in a signal transmitted by a wireless tag, A program for causing a computer to execute a predetermined method, The wireless tag is attached to the seat or back of the seating equipment and stores unique tag identification information. Remember, The method comprises: When the wireless tag transmits a signal including tag identification information, a step for acquiring the tag identification information is performed. Tep and When the tag identification information is acquired in the acquiring step, a user of the seating equipment and A storage unit that stores tag identification information of a wireless tag attached to the seating equipment in association with the tag identification information of the wireless tag attached to the seating equipment. The user corresponding to the tag identification information acquired in the acquiring step is determining that the person is seated on the seating equipment; program.

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