Communication detector for unauthorized person's terminal

Abstract

To provide a communication detector for an unauthorized person's terminal, which eliminates the need to change a threshold stored in a storage device for determining whether communication is performed between the unauthorized person's terminal and a wearable terminal; allows cost reduction; and is easy to manage.SOLUTION: A portable detector 12, which is an example of a communication detector for an unauthorized person's terminal configured to detect the presence or absence of communication with an examinee's terminal 16, includes: an auxiliary storage device 51 provided in a main body 63 and storing a program and a threshold; a control circuit 50 provided in the main body 63 and reading the program to execute processing; and an alert generator 55 provided in the main body 63. The control circuit 50 executes: first processing of comparing radio field intensities between the examinee's terminal 16 and wearable terminals 17 and 18 with the threshold to determine whether or not communication between the examinee's terminal 16 and the wearable terminals 17 and 18 has been performed; and second processing of generating an alert by the alert generator 55 in response to determining that communication between the examinee's terminal 16 and the wearable terminals 17 and 18 has been performed.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present disclosure relates to a communication detector for an unauthorized terminal that detects whether communication is being performed by an unauthorized terminal within a specific area.

Background Art

[0002] An example of a communication detection system for an unauthorized terminal that detects communication of an unauthorized terminal performed within a specific area is described in Patent Document 1. The communication detection system described in Patent Document 1 includes a plurality of radio wave detection devices (communication detectors) and electronic devices. The plurality of radio wave detection devices are installed within a specific area where wireless communication using a first communication method is prohibited or restricted. Each radio wave detection device includes a detection unit that detects radio waves by wireless communication using the first communication method, a transmission unit that transmits a report signal including device identification information for uniquely identifying the radio wave detection device and the detection result of the detection unit by a second communication method, and a threshold setting unit that sets a threshold value. Further, the detection unit includes a reception unit that receives radio waves by wireless communication using the first communication method, and a determination unit that determines that wireless communication using the first communication method is being performed if the signal strength based on the radio waves received by the reception unit is equal to or greater than the threshold value.

[0003] Each radio wave detection device is disposed at both ends of a desk for examinees in an examination hall. The desks for examinees are arranged in a row in the examination hall. The electronic device is disposed on a desk for examiners in the examination hall. Wireless communication is possible between the electronic device and the radio wave detection device. When the radio wave detection device determines that a examinee is performing wireless communication with the outside by a first communication method, that is, a cellular method, using a portable terminal (unauthorized terminal), the radio wave detection device transmits a report signal including the determination result to the electronic device.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] According to the communication detection system described in Patent Document 1, the inventor of the present application has found that the intensity of the incoming radio waves (downlink radio waves) received by an illegal terminal from an external base station varies according to the distance between the illegal terminal and the base station, etc., and a determination unit that detects the uplink radio waves transmitted from the illegal terminal needs to change the threshold value used for determination according to the intensity of the uplink radio waves. There is also a problem that radio wave detection devices must be provided for each device, resulting in increased costs, and a problem that the threshold values must be set for all radio wave detection devices, which is troublesome to manage.

[0006] An object of the present embodiment is to provide a communication detector for an illegal terminal that can determine whether communication is being performed between an illegal terminal and a wearable terminal without changing the threshold value stored in the storage device, can reduce costs, and is easy to manage.

Means for Solving the Problems

[0007] The present embodiment is a communication detector for an illegal terminal that detects the presence or absence of communication by an illegal terminal possessed by an illegal person within a specific area, and includes a main body carried by a monitor who moves within the specific area to monitor the illegal person, a storage device provided in the main body in which a program is stored and a threshold value for determining whether communication has occurred between the illegal terminal and a wearable terminal worn on the body of the illegal person is stored, a control circuit provided in the main body that reads the program stored in the storage device and executes processing, and an alert generator provided in the main body. The control circuit executes a first process of determining whether communication has occurred between the illegal terminal and the wearable terminal by comparing the communication intensity between the illegal terminal and the wearable terminal with the threshold value, and a second process of generating an alert with the alert generator when it is determined that communication has occurred between the illegal terminal and the wearable terminal. A communication detector for an illegal terminal is disclosed.

Advantages of the Invention

[0008] In this embodiment, since the communication strength is constant between the unauthorized terminal and the wearable terminal, the communication detector for the unauthorized terminal does not need to change the threshold value stored in the storage unit to determine whether communication is being performed between the unauthorized terminal and the wearable terminal. This has the effect that the number of communication detectors for the unauthorized terminal can be reduced, thus reducing costs. Also, since it is not necessary to change the threshold values stored in the storage units of a large number of communication detectors, the management of the communication detectors is easy.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Modes for Carrying Out the Invention

[0010] (Background) Techniques for detecting the communication status of mobile phone terminals have been disclosed, for example, in Japanese Patent Application Laid-Open Nos. 2010-68461, 2010-109913, 2011-24131, etc. In these documents, when the damage caused by remittance fraud became a social problem, there was a mobile phone sensing device that senses radio waves emitted from a mobile phone terminal and issues an alert announcement from an attached speaker. In particular, in the case of refund fraud, the factor was that the mobile phone was used to guide the person to a corner where there was a nearby ATM (Automatic Teller Machine), and further, the transfer operation was also guided. Therefore, when there was a person making a call on a mobile phone at an ATM corner, it was a device with a mechanism that detected the radio waves of the uplink CH (channel) of the mobile phone installed on the wall surface and issued an alert.

[0011] However, the compatibility of the intensity of the uplink CH radio wave emitted from the mobile phone terminal varies depending on the downlink radio wave environment of the mobile phone base station. For example, when the incoming radio wave from the base station is weak, the intensity of the uplink CH radio wave is strong, and conversely, when the incoming radio wave from the base station is strong, the intensity of the uplink CH radio wave is weak. Therefore, in order to continue this function, for each ATM corner, a change to an optimal threshold value for changes in the radio wave environment coming from the surrounding base stations is required. If the threshold value is not changed every time the radio wave intensity changes, the radio waves from the mobile phones used by passers-by outside the ATM corner will also be detected, and the attention announcement will not stop, resulting in poor effectiveness. The communication detector of the present disclosure provides a technology to address such problems.

[0012] (Summary of this case) In this embodiment, an example of a communication detector for an illegal terminal, a communication detection computer, and a communication detection system is described with reference to the drawings. As shown in FIG. 1, the communication detection system 10 is an illegal communication detection system that detects whether short-range wireless communication has been performed between an illegal terminal and a wearable terminal. The communication detection system 10 includes a communication detection computer 11 and a portable detector 12, which is an example of a communication detector for an illegal terminal. Bidirectional communication can be performed between the communication detection computer 11 and the portable detector 12. A plurality of monitors 14 can move within a specific area, for example, within the examination venue 13 shown in FIG. 2. Each of the plurality of monitors 14 holds a portable detector 12. The communication detection system 10 is a system that detects whether short-range wireless communication, for example, radio wave communication, has been performed mutually between the examinee terminal (illegal terminal) 16 held by the examinee 15 and the wearable terminals 17, 18. The short-range wireless communication intensity between the examinee terminal 16 and the wearable terminals 17, 18 is substantially constant. Therefore, in order to determine whether short-range wireless communication has been performed mutually between the examinee terminal 16 and the wearable terminals 17, 18, it is not necessary to change the threshold value stored in the storage device of the portable detector 12.

[0013] (Examination venue) Figure 2 is a plan view showing an example of the examination venue 13. The examination venue 13 is provided inside a building. The examination venue 13 is a space partitioned by a first side wall 21, a second side wall 22, a third side wall 23, and a fourth side wall 24. In Figure 2, an example is shown where the first side wall 21 and the third side wall 23 are arranged in parallel, and the second side wall 22 and the fourth side wall 24 are arranged in parallel. When viewing the examination venue 13 from directly above in a plan view, the examination venue 13 is a quadrilateral, for example, a rectangle or a square. In the examination venue 13, a plurality of rows of tables A1, A2, A3, A4, A5, A6 are arranged between the second side wall 22 and the fourth side wall 24. Each of the table rows A1, A2, A3, A4, A5, A6 has a plurality of tables 25 arranged at intervals between the first side wall 21 and the third side wall 23.

[0014] And aisles 26 are respectively provided between the table rows. The aisles 26 are arranged along the second side wall 22 and the fourth side wall 24. Also, an aisle 27 is provided between the first side wall 21 and the table rows A1, A2, A3, A4, A5, A6. An aisle 28 is provided between the second side wall 22 and the table row A6. Further, an aisle 29 is provided between the third side wall 23 and the table rows A1, A2, A3, A4, A5, A6, and an aisle 30 is provided between the fourth side wall 24 and the table row A1.

[0015] Furthermore, at a plurality of different locations in the examination venue 13, for example, at the four corners of the examination venue 13, the repeaters 31 shown in Figure 1 are provided. The repeaters 31 are repeaters for short-range wireless communication and include, for example, Wi-Fi (registered trademark) access points, beacons, etc. The Wi-Fi access point transmits and receives radio wave signals of the wireless LAN standard. The beacon transmits and receives radio wave signals of short-range wireless communication, for example, radio wave signals of the Bluetooth (registered trademark) standard.

[0016] (Examinee) Since examinee 15 is restricted from bringing electronic devices into the examination venue 13, it has been decided that the power of the electronic devices should be turned off and stored in the bag. The electronic devices held by examinee 15 include the examinee terminal 16, wearable terminals 17, 18, etc. The wearable terminals 17, 18 are communication devices capable of performing short-range wireless communication with the examinee terminal 16. The wearable terminals 17, 18 may be either those worn on the body of examinee 15 or those placed on the table 25. The examinee terminal 16 includes a mobile phone, a smartphone, a tablet terminal, etc. The examinee terminal 16 is a computer having a control circuit, a display unit, an operation unit, a communication device, a storage device, etc.

[0017] The communication device is capable of Wi-Fi communication with the repeater 31. The storage device stores non-temporary programs, non-temporary applications, various kinds of information and data that are read by the control circuit. The display unit is, for example, a display, and the display unit displays characters, videos, images, etc. The operation unit is operated by examinee 15. The control circuit performs various kinds of processing, judgment, control, etc. according to the non-temporary programs, non-temporary applications, various kinds of information and data stored in the storage device, the operation content of the operation unit, etc., and processes the display content of the display unit, the input signal and output signal of the communication device.

[0018] The wearable terminal 17 is an electronic device capable of communicating with the repeater 31 mutually. The wearable terminal 17 includes, for example, a camera-equipped watch, a camera-equipped ring, a camera-equipped necklace, a camera-equipped pendant, a camera-equipped pen, etc. The wearable terminal 17 is controlled by the examinee terminal 16. And the wearable terminal 17 can convert the video taken by the camera into a radio wave signal and send it to the examinee terminal 16.

[0019] The wearable terminal 18 is an electronic device capable of communicating with the examinee terminal 16 without using a repeater 31 therebetween. The wearable terminal 18 is controlled by the examinee terminal 16. The wearable terminal 18 includes, for example, a voice earphone that outputs voice. The wearable terminals 17 and 18 are devices that can be worn on the body of the examinee 15. Further, the examinee terminal 16 can communicate with the cooperator terminal 33 via a base station 32 installed outside the examination venue 13. The cooperator terminal 33 is a computer operated by a cooperator outside the examination venue 13.

[0020] Therefore, the examinee 15 can photograph the examination questions with a camera included in the wearable terminal 17 and send the video thereof to the cooperator terminal 33 via the base station 32. The cooperator can send the answers to the examination questions, for example, video, image, text, voice, from the cooperator terminal 33 to the examinee terminal 16 via the base station 32. The examinee 15 may operate the examinee terminal 16 to commit unfair acts such as visually checking the answers or listening to the voice of the answers with the earphone of the wearable terminal 18.

[0021] (Communication Detection Computer) The communication detection computer 11 is operated by an examination administrator. The communication detection computer 11 is a computer provided with a control circuit 40, an auxiliary storage device 41, a communication device 42, an operation unit 43, etc. The communication detection computer 11 may be in any form among a server, a workstation, a mainframe, a supercomputer, etc. Further, the communication detection computer 11 may be either a single-type computer or a distributed computer. The communication device 42 is a wireless communication device that receives and transmits radio waves or electricity and light and performs two-way communication with the portable detector 12 via a network.

[0022] The auxiliary storage device 41 stores non-temporary applications, non-temporary programs, various kinds of information and data, etc. The various kinds of information and data, etc. include the information of the examination venue 13 and examinee information. The information of the examination venue 13 includes a schematic diagram of the examination venue 13 viewed from directly above in plan view, the number of a plurality of table rows arranged in the examination venue 13, the positions of each table row, the number of each table 25 included in each table row and the position of each table 25, the table identification number assigned to each table 25, etc. The table identification number is different for each table 25, and each table 25 can be identified by the table identification number.

[0023] Also, the examinee information includes the examination numbers and names of each examinee 15 who sits corresponding to each table 25 of each table row. The examination number is different for each examinee 15 and can identify each examinee 15. The examinee information of each examinee 15 is associated with the identification number assigned to each table 25. For this reason, even if a plurality of examinees 15 are sitting on the chairs corresponding to the same table 25, the table 25 and the examinee 15 can be specified respectively. The operation unit 43 is operated by the examination administrator. The examination administrator can operate the operation unit 43 to update, change, correct, etc. the information of the examination venue 13 and the examinee information.

[0024] The control circuit 40 includes an arithmetic processing circuit, a main storage device, an input port, an output port, etc. The control circuit 40 can communicate with the operation unit 43, the auxiliary storage device 41, and the communication device 42 mutually. The control circuit 40 reads non-temporary applications, non-temporary programs, etc. stored in the auxiliary storage device 41 to perform various kinds of processing, for example, judgment, comparison, control, and stores various kinds of processing results in the auxiliary storage device 41. Various kinds of information and data are accumulated in the auxiliary storage device 41.

[0025] The control circuit 40 constitutes an information processing unit 44 and a repeater control unit 45 in order to perform various kinds of processing. The information processing unit 44 processes the information of the examination venue 13, the examinee information, the information acquired from the portable detector 12, the information sent to the portable detector 12, etc.

[0026] (Portable detector) The portable detector 12 is sized and weighted such that each monitor 14 can carry it and move, i.e., walk, inside the examination venue 13. The portable detector 12 has a structure that can be attached to and detached from a part of the monitor 14's body, such as a pocket of clothing, a belt of clothing, etc. The portable detector 12 is a computer equipped with a main body 63, a control circuit 50, an auxiliary storage device 51, a communication device 52, an operation unit 53, an antenna 54, an alert generator 55, a power supply 56, etc. The main body 63 is a casing made of synthetic resin or metal, and the control circuit 50, the auxiliary storage device 51, the communication device 52, the operation unit 53, the antenna 54, the alert generator 55, and the power supply 56 are provided in the main body 63.

[0027] The communication device 52 is a wireless communicator that receives and transmits radio waves, electricity, or light, and performs two-way communication with the communication detection computer 11 either via the repeater 31 or without passing through the repeater 31. The auxiliary storage device 51 stores non-temporary applications, non-temporary programs, various information and data, etc. The various information and data stored in the auxiliary storage device 51 include information and data obtained from the communication detection computer 11, information and data detected by the portable detector 12, and information and data stored in advance without being obtained from the communication detection computer 11.

[0028] The operation unit 53 is operated by the monitor 14. When the monitor 14 operates the operation unit 53, the threshold value stored in the auxiliary storage device 51 can be set. The threshold value is a reference value used to determine whether the portable detector 12 has received a radio signal. Note that the portable detector 12 can also execute a process of storing the threshold value acquired from the communication detection computer 11 in the auxiliary storage device 51. The antenna 54 is connected to the control circuit 50, and the antenna 54 can receive an uplink radio signal and a downlink radio signal between the examinee terminal 16 and the wearable terminals 17, 18. The uplink radio signal is a radio signal sent from the wearable terminals 17, 18 to the examinee terminal 16. The downlink radio signal is a radio signal sent from the examinee terminal 16 to the wearable terminals 17, 18.

[0029] The control circuit 50 includes an arithmetic processing circuit, a main storage device, an input port, an output port, etc. The control circuit 50 can communicate with the operation unit 53, the auxiliary storage device 51, the alert generator 55, and the communication device 52. The control circuit 50 reads and starts non-temporary applications, non-temporary programs, etc. stored in the auxiliary storage device 51, and based on the threshold value stored in the auxiliary storage device 51, the operation content of the operation unit 53, the radio signal received by the antenna 54, the information and data acquired from the communication detection computer 11, etc., performs various processes, such as judgment, comparison, control, and stores various processing results in the auxiliary storage device 51.

[0030] The control circuit 50 can detect the presence or absence of at least one of the radio signals (downlink) sent from the examinee terminal 16 to the wearable terminals 17, 18 and the radio signals (uplink) received by the examinee terminal 16 from the wearable terminals 17, 18. In addition, the control circuit 50 can determine whether the intensity of the detected actual radio signal exceeds the threshold value stored in the auxiliary storage device 51. Furthermore, the control circuit 50 controls the alert generator 55. The control circuit 50 can always send information and data including the performed processes, control, and judgment results to the communication detection computer 11.

[0031] The control circuit 50 includes an information processing unit 57, a radio signal processing unit 58, and an alert control unit 62 to perform various processes, controls, judgments, etc. The information processing unit 57 processes information such as that of the examination venue 13 and examinee information. The radio signal processing unit 58 processes the radio signal received by the antenna 54. The alert control unit 62 generates an alert with the alert generator 55 when communication by radio signal is performed between the examinee terminal 16 and the wearable terminals 17, 18.

[0032] The alert generator 55 includes a display unit 59, a vibration motor 60, an earphone 61, etc. The display unit includes a display, a light-emitting diode (LED) lamp, etc. The display can display information and data of the examination venue 13, commands obtained from the communication detection computer 11, etc. The vibration motor 60 is an electric motor that vibrates the main body 63 when power is supplied. The earphone 61 is connected to the communication device 52 wirelessly or by wire. The earphone 61 is worn on the ear of the supervisor 14. The earphone 61 outputs sound corresponding to the signal output from the communication device 52. Also, the earphone 61 may be a bone conduction earphone having a vibration function. The power supply 56 is a battery mounted on the main body 63 that supplies power to electronic components such as the vibration motor 60, the display unit 59, etc. The battery is a secondary battery capable of charging and discharging.

[0033] (Communication Detection Method) The flowchart of FIG. 3 is an example of a communication detection method executed by the communication detection system 10. In step S10, the communication detection computer 11 sends various information, data, control signals, etc. to the portable detector 12. In step S10, the communication detection computer 11 sends, for example, the information of the examination venue 13 and the examinee information to the portable detector 12. Also, in step S10, the communication detection computer 11 can acquire and process various information, data, etc. from the portable detector 12. In step S10, the communication detection computer 11 acquires and processes, for example, the position information of each monitor 14 from each portable detector 12, and stores the position information of each monitor 14 in the auxiliary storage device 41 respectively. Note that the communication detection computer 11 can always perform the process of step S10.

[0034] The position information of each monitor 14 includes information for identifying each monitor 14 who holds the portable detector 12 in the examination venue 13 shown in FIG. 2, the current position of each monitor 14, and the movement route of each monitor 14. The information for identifying each monitor 14 includes the number of monitors 14 in the examination venue 13, the identification symbol for identifying each monitor 14, the identification symbol for identifying the portable detector 12 held by each monitor 14, etc. The current position of each monitor 14 is the position where each monitor 14 is located within the examination venue 13. The current position of each monitor 14 includes, for example, which of the passages 26 between the table rows A1, A2, A3, A4, A5, A6 each monitor 14 is in, which of the passages 27, 28, 29, 30 each monitor 14 is in, between which of the tables 25 each monitor 14 is located, etc. The movement route of each monitor 14 is determined from the movement history of the current position of each monitor 14.

[0035] The movement path of the monitor 14 means between which table columns the monitor 14 moved, which passageways the monitor 14 moved through, and in which moving directions the monitor 14 moved. The moving directions of the monitor 14 include a first direction B1 in which the monitor 14 moves from the first side wall 21 toward the third side wall 23, a second direction B2 in which the monitor 14 moves from the third side wall 23 toward the first side wall 21, a third direction B3 in which the monitor 14 moves from the second side wall 22 toward the fourth side wall 24, and a fourth direction B4 in which the monitor 14 moves from the fourth side wall 24 toward the second side wall 22.

[0036] The monitor 14 operates the portable detector 12 in step S20 to set a threshold value, and stores the set threshold value in the auxiliary storage device 51. Also, the portable detector 12 sends the threshold value to the communication detection computer 11. The communication detection computer 11 stores the acquired threshold value in the auxiliary storage device 41. The threshold value is the radio wave intensity of the wireless signal (dBm: decibels relative to a milliwatt), and is a reference value for determining whether communication is being performed between the subject terminal 16 and the wearable terminals 17, 18. For example, when the frequency of the radio wave signal is 2.4 GHz, "-65 dBm" can be set as the threshold value, and when the frequency of the radio wave signal is 5.0 GHz, "-60 dBm" can be set as the threshold value. After performing the operation in step S20, the monitor 14 holds the portable detector and moves, that is, walks, within the test venue.

[0037] In step S21, the portable detector 12 acquires various kinds of information, data, control signals, etc. from the communication detection computer 11. In step S21, the portable detector 12 acquires, for example, the information of the examination venue 13 and the examinee information from the communication detection computer 11, processes them, and stores them in the auxiliary storage device 51. In step S21, the portable detector 12 sends various kinds of information, data, etc. to the communication detection computer 11. In step S21, for example, while the examination is being conducted, the portable detector 12 generates the position information of the supervisor 14, stores the generated position information in the auxiliary storage device 51, and sends it to the communication detection computer 11. Note that the portable detector 12 can always execute the process of step S21.

[0038] The current position included in the position information of the supervisor 14 can be determined based on, for example, the intensity of the radio wave signals received by the portable detector 12 from a plurality of access points included in the repeater 31, the difference in the arrival time of the radio wave signals from each access point to the portable detector 12, etc. Also, the current position of the supervisor 14 can be determined based on the intensity of the signals received by the portable detector 12 from a plurality of beacons included in the repeater 31, the difference in the arrival time of the signals from each beacon to the portable detector 12, etc.

[0039] In step S22, the portable detector 12 determines whether it has detected a radio wave signal. If the portable detector 12 determines Yes in step S22, in step S23, it outputs the detection of the radio wave signal and its position on the display unit 59. The detection of the radio wave signal is, for example, to turn on the light emitting diode lamp included in the display unit 59.

[0040] Also, in step S24, the portable detector 12 determines whether it has detected a radio wave signal when the supervisor 14 walks along at least one of the passages 26 and 30 on both sides of the table 25 located at the ○-th position from the first side wall 21 among any one of the table rows, for example, the table row A1, in at least one of the first direction B1 and the second direction B2.

[0041] Here, it doesn't matter whether the monitor 14 who walked through the passages 26 and 30 on both sides of the predetermined table 25 is the same person or a different person. The portable detector 12 makes the determination in step S24 based on the movement history of the monitor 14. Based on the determination in step S24, the single table 25 where the examinee 15 communicating with the examinee terminal 16 is located can be identified. When the portable detector 12 determines Yes in step S24, in step S25, it determines whether the intensity of the detected radio wave signal exceeds the threshold value, that is, whether there is communication by the examinee terminal 16. The threshold value used for the determination in step S25 is the one set in step S20.

[0042] Note that when the portable detector 12 determines Yes in step S22, it can also proceed to step S25 without executing step S24. Further, when the communication detection computer 11 obtains the information determined Yes in step S22 from the portable detector 12 located in the passage on one side of any table 25 in step S10, it is also possible to send a command signal of "Please walk through the passage on the opposite side of the table 25" to another portable detector 12. The monitor 14 holding the portable detector 12 that received this command signal can walk through the "passage on the opposite side of the table 25" upon receiving the command.

[0043] When the portable detector 12 determines Yes in step S25, that is, determines that communication has been performed by the examinee terminal 16, it generates an alert in step S26. The alert generated by the portable detector 12 can be any of the following: blinking of the issuing diode lamp, lighting of the light-emitting diode lamp, vibration of the main body of the portable detector 12 by the vibration motor 60, vibration of the bone conduction earphone included in the earphone 61, voice output in the earphone 61, etc. When the alert generated by the portable detector 12 is the lighting or blinking of the light-emitting diode lamp, the number of light-emitting diode lamps to be lit can be made different according to the radio wave signal intensity. For example, as the detected radio wave intensity increases, the number of light-emitting diode lamps to be lit can be increased.

[0044] When the monitor 14 approaches the portable detector 12 to the body or bag of the examinee 15 sitting at the nearest table 25 from the current position where the alert generator 55 has generated an alert, the monitor 14 can identify one examinee 15 who has conducted radio signal communication with the examinee terminal 16. When the examinee 15 is identified, the portable detector 12 sends the information of the identified examinee 15, that is, the information of the cheating examinee, to the communication detection computer 11 and proceeds to step S22. The information of the cheating examinee is the examination number and name.

[0045] In addition, when the portable detector 12 determines No in step S22, or when it determines No in step S24, or when it determines No in step S25, that is, when it determines that no communication is being conducted with the examinee terminal 16, the portable detector 12 proceeds to step S22. The communication detection computer 11 acquires and processes the illegal information from the portable detector 12 in step S11 and stores it in the auxiliary storage device 41.

[0046] (Application Example) The application examples of the communication detection method performed by the communication detection system 10 include the following. For example, the communication detection computer 11 can also make the determinations in steps S22, S24, and S25 of FIG. 3. Specifically described, when the portable detector 12 determines Yes in step S22, the information indicating that fact and other information are sent from the portable detector 12 to the communication detection computer 11. Then, the control circuit 40 of the communication detection computer 11 acquires the information that "radio communication has been conducted with the examinee terminal 16" from the portable detector 12 in step S10 of FIG. 3.

[0047] Then, after step S10, the communication detection computer 11 makes determinations in steps S24 and S25. When the communication detection computer 11 determines Yes in step S25, the communication detection computer 11 sends a control signal that generates an alert to the portable detector 12 again in step S10. Then, the portable detector 12 executes the process of step S26. When a plurality of portable detectors 12 receive radio signals in the passages on both sides of the table 25, the communication detection computer 11 sends control signals to the plurality of portable detectors 12 respectively in step S26.

[0048] (Effect of the Embodiment) The intensity of the communication radio wave, specifically the arriving radio wave (downlink), between the base station 32 and the examinee terminal 16 varies due to disturbances in the environment, for example, the distance between the base station 32 and the examinee terminal 16, the presence or absence of obstacles between the examinee terminal 16 and the base station 32, the number of obstacles, the density of obstacles, the height of obstacles, the weather, etc. Therefore, when the examinee terminal 16 compares the actual intensity of the arriving radio wave received from the base station 32 with a threshold value to determine the presence or absence of communication between the examinee terminal 16 and the base station 32, the threshold value must be changed according to the environment, and the determination result of the presence or absence of communication between the examinee terminal 16 and the base station 32 may also become inaccurate.

[0049] On the other hand, the portable detector 12 of the present embodiment compares the intensity of the radio communication performed between the examinee terminal 16 and the wearable terminals 17, 18 with the threshold value stored in the auxiliary storage device 51 to determine whether communication is being performed between the examinee terminal 16 and the wearable terminals 17, 18. And the examinee terminal 16 and the wearable terminals 17, 18 are present in the same examination venue 13 and perform short-range communication. Therefore, the intensity of the communication radio wave between the examinee terminal 16 and the wearable terminals 17, 18 is substantially constant. Thus, it is not necessary to change the threshold value stored in the auxiliary storage device 51 of the portable detector 12 that detects the presence or absence of communication between the examinee terminal 16 and the wearable terminals 17, 18, and the determination accuracy of whether communication is being performed between the examinee terminal 16 and the wearable terminals 17, 18 can be maintained.

[0050] Since the monitor 14 can carry the portable detector 12 and move inside the examination venue 13, the monitor 14 can approach examinees 15 for whom cheating is suspected. Therefore, examinees 15 who are actually cheating can be accurately identified, and it is possible to prevent non-cheating examinees 15 from being misidentified as cheating examinees 15. In addition, the alert generated by the alert generator 55 is less likely to be noticed by examinees 15. Therefore, it is possible to prevent interference with the examinations of examinees 15 and interference with their concentration. Furthermore, after the portable detector 12 determines Yes in step S24 and then makes the determination in step S25, misidentification can be reliably prevented.

[0051] In addition, since the monitor 14 can carry the portable detector 12 and move inside the examination venue 13, the number of portable detectors 12 can be reduced compared to the case where detectors are provided on each table 25. Therefore, the manufacturing cost of the portable detector 12 and the construction cost of the communication detection system 10 can be reduced. Furthermore, since the number of portable detectors 12 is reduced, the management of the portable detectors 12 is easier compared to the prior art in which communication detectors are provided on all tables and the threshold values stored in the storage units of all the communication detectors are changed respectively. Moreover, since the number of portable detectors 12 is reduced, the processing volume of the communication detection computer 11 for processing and storing the information and data obtained from the portable detectors 12 is reduced, and the amount of information and data stored in the auxiliary storage device 41 is reduced. Therefore, it is possible to speed up the processing in the communication detection computer 11 and reduce the capacity of the auxiliary storage device 41.

[0052] Also, if information on the examination venue 13 and part of the position information of each supervisor 14 are stored in advance in the auxiliary storage device 51 of the portable detector 12, in step S21 of FIG. 3, the communication detection computer 11 does not need to acquire the information on the examination venue 13 and the position information of each supervisor 14. That is, the portable detector 12 can execute the communication detection method of FIG. 3 without acquiring information and control signals from the communication detection computer 11. For this reason, the processing amount of the control circuit 50 that processes and stores the information and data obtained by the portable detector 12 is reduced, and the amount of information and data stored in the auxiliary storage device 51 is reduced. Therefore, it is possible to speed up the processing in the portable detector 12 and reduce the capacity of the auxiliary storage device 51.

[0053] (Supplementary Explanation) An example of the technical meaning of the matters disclosed in this embodiment is as follows. The portable detector 12 is an example of a communication detector for an illegal terminal. The main body 63 is an example of a main body. The auxiliary storage device 51 is an example of a storage device. The control circuit 50 is an example of a control circuit. The alert generator 55 is an example of an alert generator. The antenna 54 is an example of an antenna. The examination venue 13 is an example of a specific area. The examinee 15 is an example of an illegal person. The examinee terminal 16 is an example of an illegal terminal. The wearable terminals 17, 18 are examples of wearable terminals.

[0054] The determinations in steps S22, 24, and 25 are examples of the first processing executed by the control circuit. The processing in step S26 is an example of the second processing executed by the control circuit. The processing in step S21 is an example of the third processing executed by the control circuit. The processing in step S24 is an example of the fourth processing executed by the control circuit. The processing in step S22 is an example of the fifth processing executed by the control circuit.

[0055] This embodiment is not limited to what is disclosed using the drawings, and various modifications can be made without departing from the gist thereof. The specific area may be a space not partitioned by a shielding object such as a side wall. For example, when a test taker is permitted to temporarily go from the test venue to the dressing room, a monitor with a portable detector can move through corridors, stairs, passageways, etc., and detect the radio wave communication between the test taker terminal and the wearable terminal held by the test taker with the portable detector, execute the communication detection method shown in FIG. 3, and execute the communication detection method in response to the application example in FIG. 3. In such a case, corridors, stairs, passageways, dressing rooms, etc. correspond to the specific area. Also, the presence or absence of a table is not a concern. That is, if the movement of the user within the specific area is restricted, that is, in an environment where the position of the user is fixed, one user who is conducting radio wave signal communication with an unauthorized terminal can be identified by the communication detector, the communication detection computer, and the communication detection system.

[0056] Also, the standard for radio wave communication between the test taker terminal and the wearable terminal detected by the portable detector may be a standard other than Wi-Fi and Bluetooth, for example, WIMAX (registered trademark, Worldwide Interoperability for Microwave Access). Also, the short-range wireless communication detected by the portable detector may be communication other than radio wave communication, for example, infrared communication.

[0057] The tests described in this embodiment include, in addition to university entrance examinations, high school entrance examinations, junior high school entrance examinations, etc., qualification examinations, promotion examinations, regular examinations, etc. Also, in a plan view of the test venue, the test venue may have any shape such as circular, elliptical, triangular, pentagonal, hexagonal, etc. Also, the test venue may be either inside or outside a building.

[0058] The "communication detection computer" disclosed in this embodiment and the drawings can also be defined as an "illegal information processing computer". Also, the "processing unit" can also be defined as a "processing circuit". Also, the "storage device" can also be defined as a "storage circuit". Furthermore, the "control unit" can also be defined as a "control circuit". Furthermore, the "operation unit" can also be defined as an "operator". Furthermore, the "wearable terminal" can also be defined as a "wearable computer". Furthermore, the "test taker terminal" can also be defined as a "test taker computer".

[0059] This embodiment also discloses the following communication detection computer and communication detection system. For example, it is connected to a communication detector for an illegal terminal held by a monitor in a specific area in order to detect the presence or absence of communication by an illegal terminal held by an illegal person in the specific area, and has a storage device in which a program is stored, and a control circuit that reads and executes the program stored in the storage device. The control circuit determines the presence or absence of communication between the illegal terminal and a wearable terminal worn on the body of the illegal person by processing information obtained from the communication detector for the illegal terminal. A first process, and a second process of sending a control signal for generating an alert by the communication detector to the communication detector for the illegal terminal when it is determined that communication has occurred between the illegal terminal and the wearable terminal. A communication detection computer that executes the above is disclosed.

[0060] Also, a communication detector for an unauthorized terminal provided in the specific area to detect the presence or absence of communication by an unauthorized terminal held by an unauthorized person within the specific area, and a communication detection computer that performs two-way communication with the communication detector for the unauthorized terminal, and the communication detection computer has a storage device in which a program is stored and a control circuit that reads and executes the program stored in the storage device. A communication detection system, wherein the communication detector for the unauthorized terminal is held by a monitor moving within the specific area to monitor the unauthorized person and includes an alert generator, and the control circuit processes information acquired from the communication detector for the unauthorized terminal to determine whether communication has occurred between the unauthorized terminal and a wearable terminal worn on the body of the unauthorized person. A first process, and a second process of sending a control signal for generating an alert by the alert generator to the communication detector for the unauthorized terminal when it is determined that communication has occurred between the unauthorized terminal and the wearable terminal are executed. A communication detection system is disclosed.

Industrial Applicability

[0061] This embodiment can be used as a communication detector for an unauthorized terminal that determines whether communication has occurred between an unauthorized terminal and a wearable terminal within a specific area.

Explanation of Signs

[0062] 10…Communication detection system, 11…Communication detection computer, 12…Portable communication detector, 16…Subject terminal, 17, 18…Wearable terminal, 50…Control circuit, 41, 51…Auxiliary storage device, 54…Antenna, 55…Alert generator, 63…Main body

Claims

1. A communication detector that detects whether or not a communication is made by an unauthorized person's terminal held by an unauthorized person within a specific area, a main body carried by a monitor who moves within the specific area to monitor the unauthorized person; a storage device provided in the main body, storing a program, and storing a threshold value for determining whether communication has been performed between the unauthorized person terminal and a terminal; a control circuit provided in the main body, which reads the program stored in the storage device and executes processing; an alert generator provided in the main body; and The control circuit a first process for determining whether communication has been performed between the unauthorized terminal and the terminal; a second process of generating an alert by the alert generator when it is determined that communication has been performed between the unauthorized terminal and the terminal; A communication detector for a malicious terminal that executes the above.

2. 2. The communication detector for a malicious terminal according to claim 1, The control circuit a third process for identifying each of the plurality of tables placed in the specific area; a fourth process of identifying a table from the plurality of tables that is being used by an unauthorized person who possesses the unauthorized person terminal that has communicated with the terminal; A communication detector for a malicious terminal further executes the above.

3. 3. The communication detector for a malicious terminal according to claim 2, the main body is further provided with an antenna for receiving radio signals communicated between the unauthorized person's terminal and the terminal; The control circuit further executes a fifth process of determining a movement path of the monitor within the specific area, The fourth process executed by the control circuit is a communication detector for a fraudster terminal that identifies the table being used by the fraudster when the monitor moves to either side of a designated table and the antennas on either side of the designated table receive radio signals.

4. 2. The communication detector for a malicious terminal according to claim 1, The specific area includes an examination venue; The fraudster includes a test taker, and a communication detector for a fraudster terminal.

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