WO2016079911A1 - Récepteur, système de communication, procédé de correction d'informations de position, programme, émetteur et procédé d'émission de signal sans fil - Google Patents

Récepteur, système de communication, procédé de correction d'informations de position, programme, émetteur et procédé d'émission de signal sans fil Download PDF

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Publication number
WO2016079911A1
WO2016079911A1 PCT/JP2015/004357 JP2015004357W WO2016079911A1 WO 2016079911 A1 WO2016079911 A1 WO 2016079911A1 JP 2015004357 W JP2015004357 W JP 2015004357W WO 2016079911 A1 WO2016079911 A1 WO 2016079911A1
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WO
WIPO (PCT)
Prior art keywords
user
unit
transmitter
receiver
information
Prior art date
Application number
PCT/JP2015/004357
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English (en)
Japanese (ja)
Inventor
渡辺　浩幸
Original Assignee
株式会社Ｊｖｃケンウッド
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2014236141A external-priority patent/JP2016099217A/ja
Priority claimed from JP2014236140A external-priority patent/JP2016099216A/ja
Application filed by 株式会社Ｊｖｃケンウッド filed Critical 株式会社Ｊｖｃケンウッド
Publication of WO2016079911A1 publication Critical patent/WO2016079911A1/fr

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
    • G01S11/02—Systems for determining distance or velocity not using reflection or reradiation using radio waves
    • G01S11/06—Systems for determining distance or velocity not using reflection or reradiation using radio waves using intensity measurements
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/005—Traffic control systems for road vehicles including pedestrian guidance indicator
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled

Definitions

  • the present invention relates to specifying the position of a transmitter that transmits a radio signal to a receiver.
  • GPS Global Positioning System
  • GPS Global Positioning System
  • a device that measures the position uses radio waves from GPS satellites.
  • radio waves from GPS satellites cannot be received indoors, and position positioning using GPS may not be performed.
  • Patent Document 1 discloses a method in which a positioning device uses a geomagnetic sensor and an acceleration sensor as autonomous navigation sensors without using GPS.
  • the distance between the positioning device and the access point is measured using the signal strength of the beacon packet transmitted from the access point, and the position of the positioning device is corrected using the measured distance. Is disclosed.
  • An object of the present embodiment is to provide a receiver, a communication system, and position information that can correctly identify the position of a user regardless of the positional relationship between a user wearing a device that communicates radio signals and a device that measures the position.
  • a correction method, a program, a transmitter, and a wireless signal transmission method are provided.
  • the wireless signal passes through the body of the user by using a reception unit that receives a wireless signal transmitted from a transmitter attached to the user, and information on the orientation of the user included in the wireless signal.
  • a determination unit that determines whether or not a determination is made, a distance specification unit that specifies a distance to the user using a determination result in the determination unit and a signal strength of the wireless signal, and the user's included in the wireless signal.
  • a receiver comprising: a position correction unit that corrects position information using the distance specified by the distance specifying unit.
  • the present embodiment is a transmitter that is attached to a user and transmits a radio signal including information on the user's orientation and the user's position information, and a receiver that receives a radio signal transmitted from the transmitter;
  • a determination unit that determines whether or not the wireless signal has passed through the user's body using information about the orientation of the user included in the wireless signal; a determination result in the determination unit; and a signal strength of the wireless signal;
  • a receiver having a distance specifying unit that specifies a distance to the user using a position correction unit, and a position correction unit that corrects the position information of the user included in the wireless signal using the distance specified by the distance specifying unit. And providing a communication system.
  • the present embodiment receives a radio signal transmitted from a transmitter attached to a user, and whether or not the radio signal has passed through the user's body using information on the user's orientation included in the radio signal. And determining a distance to the user using a determination result regarding whether or not the wireless signal has passed through the user's body and a signal strength of the wireless signal, and the user included in the wireless signal A position information correction method for correcting the position information using the specified distance is provided.
  • the present embodiment receives a radio signal transmitted from a transmitter attached to a user, and whether or not the radio signal has passed through the user's body using information on the user's orientation included in the radio signal. And determining a distance to the user using a determination result regarding whether or not the wireless signal has passed through the user's body and a signal strength of the wireless signal, and the user included in the wireless signal.
  • the present embodiment is a transmitter that transmits a radio signal to a receiver, the direction detecting unit detecting the direction of a user wearing the transmitter, and the direction of the user detected by the direction detecting unit
  • a determination unit that determines whether or not a radio signal to be transmitted to the receiver passes through the body of the user, and transmits the radio signal including a determination result in the determination unit to the receiver
  • a transmitter including a transmitter
  • This embodiment detects the orientation of the user wearing the transmitter, and uses the detected information about the orientation of the user to determine whether or not a radio signal to be transmitted to the receiver passes through the user's body. And a wireless signal transmission method for transmitting the wireless signal including the determination result to the receiver.
  • This embodiment detects the orientation of the user wearing the transmitter, and uses the detected information about the orientation of the user to determine whether or not a radio signal to be transmitted to the receiver passes through the user's body. And a program for causing a computer to transmit the wireless signal including the determination result to the receiver.
  • a receiver, a communication system, and a position information correction method that can correctly identify the position of a user regardless of the positional relationship between a user wearing a device that communicates wireless signals and a device that measures the position.
  • a program, a transmitter, and a wireless signal transmission method can be provided.
  • FIG. 1 is a diagram of a communication system according to the first embodiment.
  • FIG. 2 is a configuration diagram of the transmitter according to the first embodiment.
  • FIG. 3 is a configuration diagram of the receiver according to the first embodiment.
  • FIG. 4 is a diagram for explaining a method of determining the direction in which the user moves according to the first embodiment.
  • FIG. 5 is a diagram illustrating a relationship between RSSI and distance according to the first exemplary embodiment.
  • FIG. 6 is a diagram illustrating a flow of position correction processing in the receiver according to the first embodiment.
  • FIG. 7 is a configuration diagram of a receiver according to the second embodiment.
  • FIG. 8 is a configuration diagram of a receiver according to the third embodiment.
  • FIG. 9 is a configuration diagram of a transmitter according to the fourth embodiment.
  • FIG. 10 is a diagram illustrating a flow of wireless signal transmission processing according to the fourth embodiment.
  • FIG. 1 A configuration example of a communication system according to the first exemplary embodiment of the present invention will be described with reference to FIG.
  • the communication system in FIG. 1 includes a receiver 10 and a transmitter 20.
  • the transmitter 20 is assumed to be attached to the user.
  • FIG. 1 it is assumed that the transmitter 20 is worn around the chest of the user.
  • the communication system of FIG. 1 is configured such that the receiver 10 identifies the position of the user who moves with the transmitter 20 attached.
  • the receiver 10 receives the radio signal transmitted from the transmitter 20.
  • the wireless communication method used between the receiver 10 and the transmitter 20 may be, for example, a wireless LAN (Local Area Network), Bluetooth (registered trademark), Zigbee (registered trademark), or the like. Another wireless communication method different from the wireless communication method may be used.
  • a wireless LAN is used as the wireless communication method, for example, the receiver 10 may be a parent device and the transmitter 20 may be a child device.
  • the communication system of FIG. 1 may be used to accurately grasp the position information of the members who are active at the disaster site. For example, even if the communication system of FIG. 1 is used for the purpose of preventing a secondary disaster or the like by grasping the accurate position of the member wearing the transmitter 20 with reference to the position where the receiver 10 is installed. Good.
  • the utilization example of the communication system of FIG. 1 is not limited to this and is used for various purposes.
  • the transmitter 20 may be a computer device that operates when a CPU (Central Processing Unit) executes a program stored in a memory.
  • the transmitter 20 includes a direction detection unit 21, a position detection unit 22, and a transmission unit 23.
  • the direction detection unit 21 detects, for example, the direction of the user wearing the transmitter 20 using a geomagnetic sensor, that is, the direction or direction in which the user is facing.
  • the direction detection unit 21 may be an electronic compass that is a device that uses a geomagnetic sensor.
  • the direction detection unit 21 detects information related to the direction in which the user is facing.
  • the direction in which the user is facing may be indicated using east, west, south, or north, for example, northeast or southwest, and may be information indicating an angle from the reference with a certain direction as a reference.
  • the direction detection unit 21 outputs information regarding the detected user orientation to the transmission unit 23.
  • the position detector 22 detects the position information of the user wearing the transmitter 20 using, for example, an acceleration sensor and a gyro sensor. For example, the position detection unit 22 specifies the position of the user using the distance from the receiver 10 and the moving direction of the transmitter 20 as viewed from the receiver 10 with reference to the position where the receiver 10 is installed. May be.
  • the position detection unit 22 calculates the moving direction and moving amount of the user wearing the transmitter 20 by accumulating data detected in a predetermined sampling period using an acceleration sensor and a gyro sensor. Information indicated using the movement direction and movement amount of the user calculated in the position detection unit 22 may be referred to as position information.
  • the position detection unit 22 outputs the detected position information to the transmission unit 23.
  • the transmission unit 23 transmits to the receiver 10 a radio signal including information on the user orientation output from the direction detection unit 21 and position information output from the position detection unit 22.
  • the transmission unit 23 has an antenna corresponding to communication of a radio signal in a predetermined frequency band.
  • the direction detection unit 21 and the position detection unit 22 may periodically perform detection processing and periodically output the detected information to the transmission unit 23. Or when the information which instruct
  • FIG. 1 A diagrammatic representation of an exemplary embodiment of an exemplary embodiment of an exemplary embodiment of an exemplary embodiment of an exemplary embodiments.
  • the receiver 10 may be a computer device that operates when a CPU executes a program stored in a memory.
  • the receiver 10 includes a reception unit 11, an analysis unit 12, a data storage unit 16, and a display unit 17.
  • the analysis unit 12 may be, for example, a CPU or an MPU (Micro Processing Unit).
  • the analysis unit 12 further includes a determination unit 13, a distance specifying unit 14, and a position correction unit 15.
  • the data storage unit 16 may be a memory in the receiver 10 or an external storage device connected to the receiver 10.
  • the display unit 17 may be a display such as an LCD (Liquid Crystal Display).
  • the receiving unit 11 receives a radio signal transmitted from the transmitter 20 attached to the user.
  • the receiving unit 11 may receive a radio signal periodically transmitted from the transmitter 20 or may receive a radio signal transmitted from the transmitter 20 at an arbitrary timing.
  • the receiving unit 11 has an antenna that supports communication of radio signals in a predetermined frequency band.
  • the receiving unit 11 outputs the received radio signal to the analyzing unit 12.
  • the determination unit 13 determines whether or not the radio signal received by the reception unit 11 has passed through the user's body, using information regarding the user orientation included in the radio signal output from the reception unit 11. For example, when the user is moving north, when the user is facing north, the determination unit 13 determines that the wireless signal received by the reception unit 11 has passed through the user's body. When the user is moving north, when the user is facing south, the determination unit 13 determines that the wireless signal received by the reception unit 11 does not pass through the user's body. .
  • the transmitter 20 is mounted on the front surface of the user like the chest position of the user as described in FIG.
  • the criterion for determining whether or not the wireless signal has passed through the user's body is that the transmitter 20 is attached to the front surface of the user. Different.
  • the receiver 10 is provided with four switches 30 to 33. Further, as shown in FIG. 4, the north area obtained by dividing the periphery of the receiver 10 into four layers is the north layer, the east area is the east layer, the south layer is the south layer, and the west area is the west layer. A layer.
  • the switch 30 is provided in the north layer, the switch 31 is provided in the east layer, the switch 32 is provided in the south layer, and the switch 33 is provided in the west layer.
  • the user wearing the transmitter 20 may start moving after pressing the switch 30.
  • the determination unit 13 may determine that the user is moving north.
  • the switch 31 and the switch 33 are arranged along the east-west axis, and the switch 30 and the switch 32 are received along the north-south axis.
  • Machine 10 is installed.
  • the receiver 10 includes a geomagnetic sensor
  • the direction in which the user moves may be specified using the direction of the receiver 10 detected by the geomagnetic sensor and the position of the pressed switch.
  • FIG. 4 an example in which the area around the receiver 10 is divided into four and has four switches has been described, but the number of divided areas and the number of switches are not limited thereto.
  • the direction in which the user moves can be specified in detail by increasing the number of divided areas and increasing the number of switches accordingly.
  • the determination unit 13 may determine the moving direction of the user using the switch provided in the receiver 10. Or the determination part 13 may determine a user's moving direction using the user's positional information contained in a radio signal. The position information of the user is shown using the distance from the receiver and the direction viewed from the receiver with reference to the receiver 10. Therefore, the determination part 13 can determine a user's moving direction by using a user's positional information.
  • the distance specifying unit 14 specifies the distance from the receiver 10 to the user using the determination result in the determining unit 13 and the signal strength of the radio signal received in the receiving unit 11.
  • the signal strength of the radio signal may be indicated using, for example, RSSI (Received Signal Strength Strength Indication).
  • RSSI Receiveived Signal Strength Strength Indication
  • the RSSI value of the radio signal received by the receiver 10 is measured in advance while changing the distance between the user and the transmitter 20.
  • the results measured in advance are shown in FIG. FIG. 5 shows a case where the radio signal received by the receiver 10 passes through the user's body and a case where the radio signal does not pass through the user's body.
  • the result measured in a state where the user faces the receiver 10 is shown as a case where the user does not pass through the human body, and the result measured in the state where the user turns his back to the receiver 10 It is shown as passing through.
  • FIG. 5 shows a case where the radio signal received by the receiver 10 passes through the user's body and a case where the radio signal does not pass through the user's body.
  • the distance specifying unit 14 uses the RSSI of the wireless signal and the graph information indicated as having passed through the human body. The distance between 10 is specified. Further, when the determination unit 13 determines that the wireless signal that has not passed through the user's body has been received by the determination unit 13, the RSSI of the wireless signal and the graph information that is indicated as not passing through the human body Is used to specify the distance to the receiver 10.
  • FIG. 5 shows measurement results in two states, a state where the user and the receiver 10 face each other and a state where the user turns his back to the receiver 10, but the measurement in other states is performed in advance. May be executed.
  • the measurement may be performed in a state where the user is facing sideways with respect to the receiver 10.
  • the user may change the angle with respect to the receiver 10 and perform measurement in a plurality of states.
  • the angle of the user with respect to the receiver 10 may be changed by setting the state of the user facing the receiver 10 to 0 degrees and the state of the user facing away from the receiver 10 to 180 degrees.
  • the determination unit 13 may determine not only whether or not the radio signal has passed through the user's body but also that the user is facing sideways with respect to the receiver 10. For example, the determination unit 13 may determine that the user is facing sideways with respect to the receiver 10 when the user is moving in the north direction and the user is facing in the east direction. In this case, the distance specifying unit 14 specifies the distance to the transmitter 20 using the RSSI of the radio signal and the graph information indicated as the case where the user is facing sideways.
  • the determination unit 13 may calculate an angle at which the user is facing the receiver 10. For example, when the user is moving in the north direction and the user is facing north-northeast, the determination unit 13 may determine that the user is facing 135 degrees with respect to the receiver 10. Good.
  • the distance specifying unit 14 faces the RSSI of the radio signal and the measurement result measured in advance when the user faces the direction of 135 degrees with respect to the receiver 10 or a direction close to 135 degrees.
  • the distance from the transmitter 20 is specified using the graph information indicating the measurement result measured at the time.
  • the distance between the receiver 10 and the transmitter 20 is measured.
  • the error can be reduced.
  • the RSSI value in a plurality of states in which the angle with respect to the user's receiver is changed at a predetermined distance is measured as a reference value.
  • the change of the RSSI value may be calculated by calculation.
  • the position correction unit 15 corrects the user position information included in the radio signal using the distance between the receiver 10 specified by the distance specifying unit 14 and the user.
  • the position correction unit 15 outputs the corrected position information to the display unit 17.
  • the display unit 17 displays the position information output from the position correction unit 15, the user who operates the receiver 10 can confirm the exact position of the user wearing the transmitter 20.
  • the corrected position information may be transmitted to another device different from the receiver 10, for example, a device such as a smartphone, and the accurate position of the user wearing the transmitter 20 in the other device may be displayed.
  • a transmission unit (not shown) that transmits position information to another device may be used.
  • the receiver 10 includes the display unit 17 and the transmission unit, and the administrator or the like can confirm the accurate position of the user wearing the transmitter 20 in both the receiver 10 and other devices. Also good.
  • the position detector 22 of the transmitter 20 may determine the position of the pressed switch among the switches 30 to 33 as the initial position of the user and detect the position information.
  • the position information measured by setting the initial position of the user as the point where the movement is actually started is, for example, more accurate than when the initial position is assumed to be the center of the receiver 10 or an arbitrary place of the receiver 10. Indicates the position. Therefore, the position correction unit 15 corrects the position information measured by setting the initial position of the user as the point where the movement is actually started using the distance specified by the distance specifying unit 14, thereby making it more accurate.
  • the user's position can be specified.
  • the receiving unit 11 receives a radio signal transmitted from the transmitter 20 (S11).
  • the determination unit 13 determines the orientation of the user using information regarding the orientation of the user included in the wireless signal (S12).
  • the determination unit 13 determines whether or not the wireless signal received in step S11 passes through the user's body using the information on the user's orientation and the user's moving direction (S13). It is assumed that the moving direction of the user is specified by pressing a switch provided in the transmitter 20 before the user moves.
  • the distance specifying unit 14 determines the RSSI value of the radio signal received in step S11 (S14). Next, the distance specifying unit 14 specifies the distance to the user using the determination result in step S14 and the RSSI value specified in step S15 (S15).
  • the position correction unit 15 extracts the user position information included in the wireless signal received in step S11 (S16). Next, the position correction unit 15 corrects the user position information extracted in step S16 using the distance to the user specified in step S15 (S17). Next, the display unit 17 displays the corrected user position information (S18).
  • the position information extraction process of the user in step S16 may be performed between step S11 and step S13.
  • the determination unit 13 may determine the moving direction of the user using the user position information extracted in the user position information extraction process.
  • the receiver 10 uses the RSSI value that changes according to the distance between the user and the receiver in advance in a state where the orientation of the user with respect to the receiver is changed. be able to. Thereby, the receiver 10 can specify the distance between the receiver 10 and the user in consideration of the attenuation of the signal strength due to the received radio signal passing through the body. Therefore, regardless of the positional relationship between the user and the receiver 10 and the orientation of the user, the receiver 10 can accurately specify the position of the user.
  • the receiver 40 has a configuration in which an authentication unit 41 and a user information storage unit 42 are added to the receiver 10 of FIG. Since the configuration of the receiver 40 other than the authentication unit 41 and the user information storage unit 42 is the same as that of the receiver 10 of FIG. 3, detailed description thereof is omitted.
  • the user information storage unit 42 stores information for identifying a plurality of users.
  • the user information storage unit 42 may store fingerprint information, voiceprint information, face image information, or the like of each user.
  • the authentication unit 41 acquires the fingerprint information of the user when the user presses any one of the switches 30 to 33. Further, the authentication unit 41 specifies the user who pressed the switch using the acquired fingerprint information and the information stored in the user information storage unit 42. When the authentication unit 41 identifies the user who pressed the switch, the authentication unit 41 outputs information regarding the identified user to the analysis unit 12.
  • the authentication unit 41 specifies a user using the user's voice print information
  • the authentication unit 41 specifies the voice print information using the user's voice information obtained from a microphone or the like (not shown) installed in the receiver 40. Also good.
  • the authentication unit 41 may specify a user who starts moving using the specified voice print information and information stored in the user information storage unit 42.
  • the authentication unit 41 specifies a user using the user's face image information
  • the user's face image captured using a camera installed in the receiver 40 is stored in the user information storage unit 42. You may determine whether it corresponds with a face image.
  • the data storage unit 16 stores measurement results obtained by measuring RSSI that changes according to changes in distance for a plurality of users. That is, the data storage unit 16 associates and manages measurement results measured in advance for each user.
  • the distance specifying unit 14 extracts the measurement result related to the user output from the authentication unit 41 from the data storage unit 16.
  • the distance specifying unit 14 specifies the distance between the receiver 10 and the user using the graph information extracted from the data storage unit 16 and the determination result in the determination unit 13.
  • the position information of a plurality of users can be corrected by using the receiver 40 according to the second embodiment of the present invention.
  • the distance specifying unit 14 can extract graph information about the user who has transmitted the wireless signal from the data storage unit 16. Therefore, even when a plurality of users are moving, the position information can be corrected for each user.
  • the receiver 50 has a configuration in which a feedback processing unit 51 is added to the receiver 10 of FIG. Since the configuration of the receiver 50 other than the feedback processing unit 51 is the same as that of the receiver 10 of FIG. 3, detailed description thereof is omitted.
  • the feedback processing unit 51 receives the corrected position information output from the position correction unit 15 by the user.
  • the feedback processing unit 51 transmits the received corrected position information to the transmitter 20.
  • the feedback processing unit 51 transmits the corrected position information to the transmitter 20 via the wireless communication line.
  • the wireless communication method used when the feedback processing unit 51 transmits the position information to the transmitter 20 may be the same as the wireless communication method used by the receiving unit 11 with the transmitter 20, or different wireless communication methods. It may be.
  • the transmitter 20 can recognize the current accurate position by receiving the corrected position information transmitted from the feedback processing unit 51 of the receiver 50.
  • position information detected using an acceleration sensor and a gyro sensor is obtained by adding newly detected information to information detected in the past.
  • errors are also integrated. Therefore, the position information detected by the position detection unit 22 of the transmitter 20 includes a large error as time passes. In such a case, when the receiver 50 corrects the position information, the correction amount increases with time, and the correction may not be performed accurately.
  • the receiver 50 feeds back the corrected position information to the transmitter 20, the position information held by the transmitter 20 is updated to accurate position information. Thereby, even if time passes, the increase in the correction amount in the receiver 50 can be suppressed. Therefore, the receiver 50 can continue to perform accurate correction.
  • FIG. 8 shows a configuration in which the feedback processing unit 51 is added to the receiver 10 of FIG. 3, but the feedback processing unit 51 may be added to the receiver 40 of FIG.
  • the transmitter 60 has a configuration in which a determination unit 61 is added to the transmitter 20 of FIG. Since the configuration of the transmitter 60 other than the determination unit 61 is the same as that of the transmitter 20 of FIG. 2, detailed description thereof is omitted.
  • the determination unit 61 determines whether a radio signal transmitted from the transmitter 60 to the receiver 10 passes through the body of the user wearing the transmitter 60. Specifically, the determination unit 61 uses the information related to the user orientation output from the direction detection unit 21 and the user position information based on the receiver 10 output from the position detection unit 22. Since the determination process in the determination unit 61 is the same as that of the determination unit 13 in FIG.
  • the transmission unit 23 transmits to the receiver 10 a radio signal including a determination result regarding whether or not the radio signal to be transmitted passes through the body of the user wearing the transmitter 60.
  • the direction detection part 21 detects a user's direction using a geomagnetic sensor (S21).
  • the position detection part 22 detects a user's positional information using an acceleration sensor and a gyro sensor (S22).
  • the determination unit 61 determines whether or not the radio signal transmitted to the receiver 10 passes through the body of the user wearing the transmitter 60 using the information detected in steps S21 and S22 ( S23).
  • the transmission unit 23 transmits a radio signal including the determination result determined in step S23 to the receiver 10 (S24).
  • the transmitter can determine whether or not a radio signal received by the receiver 10 passes through the user's body.
  • the analysis unit 12 of the receiver 10 does not need to include the determination unit 13. This eliminates the need for the receiver 10 to execute a process for determining whether or not the radio signal has passed through the user's body, thereby reducing the processing load. For example, when the receiver 10 needs to execute processing for correcting position information regarding a large number of users, the processing load on the receiver 10 increases. In such a case, the effect of executing on the transmitter side the process of determining whether or not the radio signal has passed through the user's body is increased.
  • the present invention has been described as a hardware configuration, but the present invention is not limited to this.
  • the present invention can also realize processing in the receiver and transmitter by causing the CPU to execute a computer program.
  • Non-transitory computer readable media include various types of tangible storage media (tangible storage medium).
  • Examples of non-transitory computer-readable media include magnetic recording media (eg flexible disks, magnetic tapes, hard disk drives), magneto-optical recording media (eg magneto-optical discs), CD-ROMs (Read Only Memory), CD-Rs, CD-R / W, semiconductor memory (for example, mask ROM, PROM (Programmable ROM), EPROM (Erasable ROM), flash ROM, RAM (Random Access Memory)) are included.
  • the program may also be supplied to the computer by various types of temporary computer-readable media. Examples of transitory computer readable media include electrical signals, optical signals, and electromagnetic waves.
  • the temporary computer-readable medium can supply the program to the computer via a wired communication path such as an electric wire and an optical fiber, or a wireless communication path.
  • the present invention can be applied to a receiver, a communication system, a position information correction method, a program, a transmitter, and a radio signal transmission method, and in particular, a receiver related to specifying the position of a transmitter that transmits a radio signal to the receiver,
  • the present invention is applicable to a communication system, a position information correction method, a program, a transmitter, and a radio signal transmission method.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

La présente invention concerne un récepteur apte à spécifier correctement la position d'un utilisateur, auquel est fixé un dispositif qui effectue une communication de signal sans fil, ladite position étant spécifiée quelle que soit la relation de position entre l'utilisateur et d'autres dispositifs. Un mode de réalisation de la présente invention concerne un récepteur (10) équipé des éléments suivants : une unité (11) de réception qui reçoit des signaux sans fil émis par un émetteur (10) attaché à un utilisateur ; une unité (13) de détermination qui détermine, à l'aide des informations relatives à la direction de l'utilisateur, si les signaux sans fil sont passés à travers le corps de l'utilisateur, lesdites informations étant incluses dans les signaux sans fil ; une unité (14) de spécification de distance qui spécifie la distance jusqu'à l'utilisateur à l'aide des résultats de détermination obtenus de l'unité (13) de détermination, ainsi que l'intensité de signal des signaux sans fil ; et une unité (15) de correction de position qui corrige, à l'aide de la distance spécifiée au moyen de l'unité (14) de spécification de distance, les informations de position de l'utilisateur, lesdites informations de position étant incluses dans les signaux sans fil.
PCT/JP2015/004357 2014-11-21 2015-08-28 Récepteur, système de communication, procédé de correction d'informations de position, programme, émetteur et procédé d'émission de signal sans fil WO2016079911A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2014-236141 2014-11-21
JP2014-236140 2014-11-21
JP2014236141A JP2016099217A (ja) 2014-11-21 2014-11-21 送信機、無線信号送信方法及びプログラム
JP2014236140A JP2016099216A (ja) 2014-11-21 2014-11-21 受信機、通信システム、位置情報補正方法及びプログラム

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