JP2007174636A - Communication method, communication system, transmitter, receiver and biological information measuring system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To excellently perform communications in one-way communications from a transmitting side to a receiving side. <P>SOLUTION: A transmitter 101 transmits at predetermined time intervals a biological information signal of which a transmission level is a first level and a transmission number is the first, and a biological information signal of which a transmission level is a second level and a transmission number is the second, regarding the identical heartbeat data. A receiver 102 receives the biological information signals from the transmitter 101 with a receiving sensitivity fixed at a constant value, fetches and stores data of normally received biological information. When biological information of a different transmission number and the identical data content is received thereafter, the relevant subsequent data are not stored but discarded. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a communication method for transmitting a signal from a transmission side to a reception side, a communication system for transmitting a signal from a transmission side means to a reception side means, a transmitter used in the communication method and communication system, a receiver, and the The present invention relates to a biological information measurement system having a correspondence relationship with a communication method or a communication system.

  2. Description of the Related Art Conventionally, portable biological information measurement systems that measure human biological information such as heart rate, pulse rate, and number of steps have been developed. In general, the biological information measuring system detects a user's biological information and wirelessly transmits a biological information signal that is a signal related to the biological information, and receives a biological information signal from the transmitting side means. Receiving means for displaying and the like are provided, and at least one of the transmitting means and the receiving means is carried by a user and used.

  For example, as a portable heart rate measurement system that is a kind of portable biological information measurement system, a heart rate monitor body (transmission side means) that detects heartbeats and wirelessly transmits heart rate information is pressed against a user's chest with a chest belt. The heart rate information from the heart rate monitor body is received by the receiving means of the wrist watch type device using a wrist watch type device (receiving side means) having a receiving means, a display means, etc., and the heart rate information is received. A display that is displayed by the display means has been developed.

  Although transmission of signals from the transmission side means to the reception side means needs to be performed accurately, proper communication may not be performed.

  In general, in a wireless communication system in which signals are transmitted wirelessly from a transmission-side means to a reception-side means, the reason for the inability to transmit and receive appropriate signals is as follows: (1) Input level of the reception-side means due to an increase in communication distance (2) Communication failure due to excessive input level of the receiving means due to shortened communication distance, (3) Interference wave other than radio transmission wave to be received There are communication failures caused by influences, and (4) communication failures caused by changes in the communication environment and the communicable distance.

  In developing a wireless communication system that is placed in a use environment where all these causes of communication failures are assumed, it is necessary to develop a wireless transceiver having a technique for solving all of the above problems.

  As means for solving these problems, for example, as disclosed in Patent Document 1, the reception level of the reception side means is fed back to the transmission side means, so that the transmission signal output of the transmission side means is matched to the reception status of the reception side means. There is an invention that is changed.

However, as in the invention described in Patent Document 1, in a system in which the reception level of the reception side means is fed back and the transmission output of the transmission side means is adjusted, the bidirectional communication means is inevitably assumed. The configuration becomes complicated. Further, there is a problem that it cannot be applied to a one-way communication system such as a portable paging receiving terminal or a heart rate monitor system that transmits a timing signal at regular intervals as described above.
Paragraphs [0030] to [0052] and Japanese Patent Application Laid-Open No. 2004-201156 and FIGS.

  An object of the present invention is to enable good communication from a transmission side to a communication side.

  Another object of the present invention is to enable good communication in one-way communication from the transmission side to the reception side.

  According to the present invention, in the communication method of transmitting a signal from the transmission side to the reception side, the transmission side transmits a signal representing the same content information a plurality of times at a predetermined interval, and at least one of the transmission side and the reception side Provides a communication method characterized by communicating each signal in a plurality of communication states having different communication levels.

  The transmitting side transmits a signal representing information of the same content a plurality of times at a predetermined interval, and at least one of the transmitting side and the receiving side communicates the signals in a plurality of communication states having different communication levels.

  Here, the transmitting side may be configured to transmit the signals at different transmission levels, and the receiving side may receive the signals with a constant reception sensitivity.

  The transmitting side may be configured to transmit the signals at a constant transmission level, and the receiving side may receive the signals with different reception sensitivities.

  The transmitting side may be configured to transmit at least two signals among the signals at different transmission levels, and the receiving side may receive the signals with at least two different reception sensitivities.

  Further, the receiving side may have a storage means for storing information, and may be configured to store only one of the signals representing the information of the same content in the storage means.

  Further, a transmission number is added to the signal, and the receiving side determines whether or not the information is the same content based on the transmission number in the signal, and the signal in the signal representing the information of the same content Only one may be stored in the storage means.

  Alternatively, only one of the signals representing the same content information is stored in the storage means without receiving the same content information by determining the next reception timing based on the transmission number. It may be configured.

  Further, according to the present invention, in a communication system having a transmission side means for transmitting a signal and a reception side means for receiving a signal from the transmission side means, the transmission side means outputs a signal representing information of the same content in advance. There is provided a communication system characterized in that transmission is performed a plurality of times at intervals, and at least one of the transmission side means and the reception side means communicates the signals in a plurality of communication states having different communication levels.

  The transmission side means transmits a signal representing information of the same content a plurality of times at predetermined intervals, and at least one of the transmission side means and the reception side means communicates the signals in a plurality of communication states having different communication levels. .

  Here, the transmitting side means may be configured to transmit the signals at different transmission levels, and the receiving side means may receive the signals with a constant reception sensitivity.

  The transmitting side means may be configured to transmit the signals at a constant transmission level, and the receiving side means may receive the signals with different reception sensitivities.

  Further, the transmitting side means may be configured to transmit at least two signals of the signals at different transmission levels, and the receiving side means may receive the signals with at least two different reception sensitivities.

  Further, the receiving side means may have a storage means for storing information, and may be configured to save only one of the signals having the same contents in the storage means.

  In addition, a transmission number is added to the signal, and the receiving side means determines whether or not the information is the same content based on the transmission number in the signal, and includes the signal representing the information of the same content. Only one of these may be stored in the storage means.

  According to the present invention, in the transmitter having a transmission means for transmitting a signal to the receiver and a transmission control means for controlling the transmission means, the transmission control means differs in signals representing information of the same content. There is provided a transmitter characterized in that the transmission means is controlled to transmit a plurality of times at predetermined intervals at a transmission level.

  The transmission control unit controls the transmission unit to transmit a signal representing the same information at a predetermined transmission interval at a plurality of times at different transmission levels.

  Here, the transmission control means may be configured to control the transmission means so as to transmit at least two of the signals at different transmission levels.

  In addition, a predetermined transmission number may be added to the signal.

  Further, a sensor for detecting biological information may be provided, and the signal may be configured to be a biological information signal related to the biological information.

  According to the present invention, in the receiver having a receiving means for receiving a signal from the transmitter and a receiving control means for controlling the receiving means, the receiving control means is spaced from the transmitting side means at a predetermined interval. There is provided a receiver characterized in that the receiving means is controlled to receive signals representing information of the same content transmitted a plurality of times with different sensitivities.

  The reception control means controls the reception means so as to receive signals representing information of the same content transmitted from the transmitter a plurality of times at predetermined intervals with different sensitivities.

  Here, the reception control means may be configured to control the reception means so as to receive each signal with at least two different reception sensitivities.

  In addition, it has a storage means for storing information, and the reception control means is configured to store in the storage means only one of the signals including the same content information received by the reception means. May be.

  Further, a transmission number is added to the signal, and the reception control means determines whether or not the information is the same content based on the transmission number in the signal, and in the signal representing the information of the same content Only one may be stored in the storage means.

  The signal may be configured to be a biological information signal related to biological information.

  Furthermore, a display means for displaying the biological information may be provided.

  In addition, according to the present invention, the transmission-side means for transmitting a biological information signal, which is a signal related to biological information, and the reception-side means for receiving the biological information signal from the transmission-side means, the transmission-side means and the reception In a biological information measurement system in which a user carries and uses at least one of the side means, the transmission side means transmits the biological information signal representing the same content information a plurality of times at predetermined intervals, and the transmission side means At least one of the reception side means communicates each of the biological information signals in a plurality of communication states having different communication levels.

  The transmitting-side means transmits biological information signals representing the same content information a plurality of times at predetermined intervals, and at least one of the transmitting-side means and the receiving-side means transmits each of the biological information signals to a plurality of communications with different communication levels. Communicate in state.

  Here, the transmitting-side means may transmit each biological information signal at a different transmission level, and the receiving-side means may receive each biological information signal with a constant reception sensitivity.

  Further, the transmission side means may be configured to transmit each biological information signal at a constant transmission level, and the reception side means may receive each biological information signal with different reception sensitivities.

  The transmitting side means transmits at least two biological information signals in the respective biological information signals at different transmission levels, and the receiving side means receives each of the biological information signals with at least two different reception sensitivities. It may be configured.

  Further, the receiving side means may have a storage means for storing information, and may be configured to save only one of the signals having the same contents in the storage means.

  In addition, a transmission number is added to the signal, and the receiving side means determines whether or not the information is the same content based on the transmission number in the signal, and includes the signal representing the information of the same content. Only one of these may be stored in the storage means.

  Alternatively, the reception path means discriminates the next reception timing based on the transmission number and does not receive the same content information, but stores only one of the signals representing the same content information. You may comprise so that it may preserve | save in a means.

  Further, according to the present invention, when the previous signal is a radio signal, the communication environment detecting means is provided in any of the communication method, the communication system, the transmitter, the receiver, and the biological information measurement system. By having it, you may comprise so that the said different transmission level or the said different receiving sensitivity may be determined according to a communication environment detection state.

  ADVANTAGE OF THE INVENTION According to this invention, at the time of communication from a transmission side to a reception side, generation | occurrence | production of a communication failure can be suppressed and communication can be performed favorably.

  Further, according to the present invention, in one-way communication in which a signal is transmitted from the transmission side means to the reception side means, it is possible to suppress the occurrence of communication failure and perform communication satisfactorily.

  In addition, according to the present invention, it is possible to suppress the occurrence of communication failure due to fluctuations in the communication distance, so that even when the communication distance between the transmission side means and the reception side means fluctuates, communication can be performed satisfactorily. Become.

  In addition, there is an effect that noise resistance is improved.

  Further, even when the communication environment changes, it is possible to perform communication satisfactorily.

  Hereinafter, a communication method, a communication system, a transmitter, a receiver, and a biological information measurement system according to embodiments of the present invention will be described. In the present embodiment, a heart rate monitor main body (transmission side means) that detects heartbeats and wirelessly transmits heartbeat information is used as a chest belt as a biological information measurement system that has a corresponding relationship with the communication method and communication system. A wristwatch-type device (receiver-side device) that is worn in pressure contact with a person's chest and has receiving means, display means, etc., receives heart rate information from the heart rate monitor body by the receiving means of the wristwatch-type device. An example of a portable heart rate monitor system in which the heart rate information is displayed on the display means will be described.

  FIG. 1 is a block diagram of a heart rate monitor system according to the first embodiment of the present invention.

  In FIG. 1, a heart rate monitor system measures a heart rate of a user 100, which is a biological signal, and transmits a biological information signal 101 representing the information on the heart rate as a transmitting side means. And a biological information receiver 102 as a receiving means for receiving a biological information signal from the mobile phone.

  The transmitter 101 is integrally attached to a chest belt (not shown), and is used by being attached to the chest of the user 100. The receiver 102 has, for example, a wristwatch type appearance and is used by being worn on the arm of the user 100. The transmitter 101 and the receiver 102 are configured to communicate with each other, and one-way transmission of a biological information signal is performed from the transmitter 101 to the receiver 102 by radio (for example, electromagnetic induction). Done. Further, the transmitter 101 is configured to detect the heart rate of the human body 100, transmit the heart rate per unit time as a biological information signal to the receiver 102, and display the heart rate on the receiver 102 side. .

  A transmitter 101 detects a heartbeat and performs a transmission control of a biological information signal related to the heartbeat, a heartbeat detection / transmission control unit 103, and a memory 110 as a first storage unit that stores data such as transmission heart rate data. The output signal level can be changed, and a transmission output circuit 111 that receives a transmission output data signal and outputs it as a biological information signal, and an antenna 112 for wirelessly transmitting the biological information signal are provided. The heartbeat detection / transmission control unit 103 constitutes a transmission control unit, and the transmission output circuit 111 and the transmission antenna 112 constitute a transmission unit.

  The heartbeat detection / transmission control unit 103 calculates a heart rate per unit time based on the heartbeat detected by the biological information detection unit 104 and the biological information detection unit 104 having the sensor 105 for detecting the heartbeat of the human body. Is stored in the memory 110 as biometric information, the transmission data processing unit 107 that reads out the memory 110 when the biometric information is stored in the memory 110 and controls transmission processing, and the transmission data processing unit 107 Converts the biometric information read out into a signal format suitable for transmission (for example, a serial signal) and outputs the biometric information to the transmission output circuit 111 as a transmission output data signal, and the output of the transmission output circuit 111 A transmission output level switching unit 109 that performs level switching control is provided.

  Although the detailed operation will be described later, the transmitter 101 transmits a biometric information signal having the first transmission level (for example, a large level) and the first transmission number for the same heartbeat data, and the transmission level is the first level. A biological information signal having a second level different from the first level (for example, a small level) and a transmission number different from the first level (in this case, the second level) is set to a predetermined time interval (for example, one second interval). The above operation is repeated at a predetermined time interval for each heartbeat data transmitted and measured at (1). For example, when one heart rate data is transmitted at two levels, the time required for transmitting the first and second signals is 2 seconds in total, and therefore each heart rate data is transmitted continuously in time. In this case, each heartbeat data is transmitted at intervals of 2 seconds. Thereby, the transmitter 101 transmits each biological information representing the heart rate measured by the sensor 105 at the predetermined time interval.

  On the other hand, the receiver 102 includes a receiving antenna 120, a reception input circuit 119 that detects and amplifies the biological information signal received by the antenna 120, and outputs it as a received input data signal, and second storage means that stores data such as biological information. As a memory 118, a received input data signal from the receiving input circuit 119 is received and stored as biometric information in the memory 118, and the heart rate is displayed based on the biometric information stored in the memory 118. A display control unit 113 is provided. The data reception / heart rate display control unit 113 constitutes a reception control unit, and the reception input circuit 119 and the antenna 120 constitute a reception unit.

  The data reception / heart rate display control unit 113 receives the received input data signal from the reception input circuit 119 and outputs it as biometric information, and receives the biometric information from the data reception unit 117 in the memory 118. From the biometric data display processing unit 115 and the biometric data display processing unit 115, which detects that the biometric information is stored in the data processing unit 116 and the memory 118, and outputs heartbeat information in a format suitable for displaying the biometric information. A biological information display unit 114 is provided as display means for displaying the heart rate corresponding to the heart rate information.

  Although the detailed operation will be described later, the receiver 102 receives each biological information signal from the transmitter 101 with a reception sensitivity fixed to a constant value, captures normally received biological information data, and stores it in the memory 118. Thereafter, when biometric information signals having the same data contents and different transmission numbers are received, the subsequent biometric information is discarded without being saved.

  FIG. 2 is a flowchart showing processing of the transmitter 101. FIG. 3 is a flowchart showing processing of the receiver 102.

  The operation of the first embodiment of the present invention will be described below with reference to FIGS.

  When the sensor 105 detects biological information of the human body 100 (heartbeat in the present embodiment) (step S201), the biological information detection unit 104 performs processing such as waveform shaping to perform conversion processing into an electrical signal suitable for communication. The biometric information is output (step S202).

  Next, the biometric data accumulation processing unit 106 calculates a heart rate per unit time based on the biometric information from the biometric information detection unit 104 (step S203), and uses the heart rate data as biometric information as the memory 110. (Step S204).

  The transmission data processing unit 107 detects that biometric information (heart rate data) is stored in the memory 110, reads the biometric information from the memory 110 (step S205), and converts it into a biometric information signal shown in FIG. Step S206). That is, in FIG. 17, the biometric information signal is transmitted to the biometric information section that stores biometric information such as heartbeat data, and the same biometric information when it is transmitted a plurality of times (in this embodiment, twice) (for example, A transmission / reception information unit for storing transmission number data indicating whether the biometric information is transmitted first).

  The transmission data processing unit 107 stores the heart rate data read from the memory 110 in the biological information unit, and also stores the transmission number data indicating the number of data to be transmitted in the transmission / reception information unit, thereby generating a biological information signal. The biometric information signal is generated and output to the data transmission unit 108.

  At the same time, the transmission data processing unit 107 outputs an instruction signal to the transmission output level switching unit 109 so that the output level of the transmission signal becomes the first level (high level in the present embodiment). The transmission output level switching unit 109 outputs a transmission output control signal to the transmission output circuit 111 in response to the instruction signal from the transmission data processing unit 107 so that the output signal level of the transmission output circuit 111 becomes the first level. (Step S207).

  The data transmission unit 108 modulates the biological information signal by converting the biological information signal from the transmission data processing unit 107 into a serial signal, and outputs it to the transmission output circuit 111 as a transmission output data signal (step S208). ).

  In response to the transmission output control signal from the transmission output level switching unit 109, the transmission output circuit 111 sets its own transmission output level to the first level, sets the transmission output data signal as a biological information signal, and sets the antenna 112 Via the first transmission level (step S209).

  On the other hand, on the receiver 102 side, the reception input circuit 119 receives the first level biological information signal from the transmitter 101 via the antenna 120, and stores the first level biological information as a received input data signal. It outputs to the receiving part 117 (step S301 of FIG. 3).

  The data receiving unit 117 demodulates the first level biological information and outputs the demodulated information to the received data processing unit 116 (step S302).

  The reception data processing unit 116 checks whether or not normal data is received as biometric information by performing an error check on the biometric information from the data reception unit 117 (step S303).

  If the reception data processing unit 116 determines in step S303 that a normal biological information signal has not been received from the data reception unit 117 (that is, if it has been determined that data reception has failed), the process returns to step S301.

  If the reception data processing unit 116 determines in step S303 that a normal biometric information signal has been received from the data reception unit 117 (that is, if it has been determined that data reception has been successful), the transmission number included in the biometric information signal. Is checked (step S304), and it is determined whether the data is the same as already received data (step S305). That is, in step 305, the received data processing unit 116 determines that the data has the same content when the transmission number is larger than the transmission number of the biological information normally received last time, and stores the data received this time. It discards without doing and returns to step S301 (step S310). If the received data processing unit 116 determines that the biometric information received this time is biometric information received for the first time, the received data processing unit 116 changes the biometric information into a format that can be stored in the memory 118 and stores the biometric information in the memory 118. Save (step S306).

  Next, the biometric data display processing unit 115 reads the biometric information stored in the memory 118 (step S307), converts it into displayable display data (step S308), and outputs it to the biometric information display unit 114. The process returns to step S301 (step S309).

  The biometric information display unit 114 receives display data from the biometric data display processing unit 115 and displays corresponding biometric information. Thereby, the biological information display unit 114 displays the heart rate measured by the transmitter 101.

  On the other hand, on the transmitter 101 side, after the transmission output circuit 111 transmits the first level biological information signal in step S209, the transmission data processing unit 107 transmits a different transmission number to the heartbeat data having the same content as the transmitted biological information. Is added to generate a new biological information signal (step S210), and the transmission data processing unit 107 outputs the biological information signal to the data transmission unit 108. In the biometric information signal generated this time, the biometric information (heart rate data) included in the biometric information section has the same content as the biometric information signal transmitted last time, and the transmission number data is different from the previous one (for example, this time The transmission number is the second.)

  At the same time, the transmission data processing unit 107 sets the transmission output level so that the output level of the transmission signal is a second level that is different from the first level (in this embodiment, a level smaller than the first level). An instruction signal is output to the switching unit 109. The transmission output level switching unit 109 outputs a transmission output control signal to the transmission output circuit 111 in response to the instruction signal from the transmission data processing unit 107 so that the output signal level of the transmission output circuit 111 becomes the second level. (Step S211).

  The data transmission unit 108 modulates the biological information signal by converting the biological information signal from the transmission data processing unit 107 into a serial signal, and outputs it to the transmission output circuit 111 as a transmission output data signal (step S212). ).

  In response to the transmission output control signal from the transmission output level switching unit 109, the transmission output circuit 111 sets its own transmission output level to the second level, and uses the transmission output data signal as the second level biological information signal. After outputting via the antenna 112, the process returns to step S201 (step S213). Since the signal transmission at the first level and the signal transmission at the second level are each performed in 1 second, both signal transmissions are performed at intervals of 1 second.

  In the receiver 102, the reception input circuit 119 receives the second level biological information from the transmitter 101 via the antenna 120, and sends the second level biological information to the data reception unit 117 as a reception input data signal. Output (step S301 in FIG. 3).

  Thereafter, the receiver 102 executes the processes of steps S302 to S310 as described above. In this case, the reception data processing unit 106 checks the transmission number included in the biological information signal to determine whether the data is the same as the already received data (steps S304 and S305), and the biological information signal received this time Since the transmission number is larger than the transmission number of the biological information signal received last time, it is determined that the data has the same contents, and the data received this time is discarded without being stored in the memory 118 and the process returns to step S301. (Step S310).

  As described above, according to the first embodiment, the signal level output from the transmitter 101 is configured to be variable, and the reception sensitivity of the receiver 102 is fixed to a predetermined value.

  That is, the transmitter 101 transmits biometric information signals having the same data contents at a plurality of times at different transmission levels at predetermined intervals, and the receiver 102 receives the biometric information signals fixedly at a predetermined interval at the predetermined intervals. The received and normally received data is taken in and stored in the memory 118, and thereafter, even if a biometric information signal having the same data content but a different transmission number is received, it is discarded without being saved.

  Therefore, even when the distance between the transmitter 101 and the receiver 102 fluctuates greatly, when the transmission level is low at a short distance, an excessive phenomenon of the reception input level is suppressed and the communication state is improved, and the communication state is good. Since the communication becomes good when the transmission level is high, it is possible to suppress the occurrence of communication failure and maintain a good communication state. Further, in the one-way communication of transmission from the transmitter 101 to the receiver 102, it is possible to suppress the occurrence of communication failure and perform communication satisfactorily.

  In addition, when any one of the pieces of biometric information having the same data content transmitted a plurality of times is appropriately received, the biometric information of the next different data content is stored without storing the same content data again. Since it can be configured to receive from the first, appropriate reception is possible.

  FIG. 4 is a block diagram of a receiver 402 used in the heart rate monitor system according to the second embodiment of the present invention. In the second embodiment, similarly to the first embodiment, the transmission signal level output from the transmitter can be changed to a plurality of levels, and the reception sensitivity of the receiver is fixed to a predetermined value. The configuration is the same as the first embodiment.

  However, the receiver 402 as a receiving side means is different from the receiver 102 of FIG. 1 in that it includes a reception timing signal generation unit 421 that generates a reception timing signal for determining reception timing. In the case of preventing the storage of the same data, in the first embodiment, the biometric information signals having the same contents and different transmission numbers are received once and then discarded without being stored. In the second embodiment, after a biological information signal is received, the next biological information signal is not received until a predetermined time has elapsed.

  In FIG. 4, a receiver 402 receives a reception antenna 420, a reception input circuit 419 that detects and amplifies a biological information signal received by the antenna 420 and outputs it as a received input data signal, and stores second data such as biological information. Data reception for receiving the received input data signal from the memory 418 as the storage means and the reception input circuit 419 and storing it as the biometric information in the memory 418 and displaying the heart rate based on the biometric information stored in the memory 418 A heart rate display control unit 413 is provided. The data reception / heart rate display control unit 413 constitutes reception control means, and the reception input circuit 419 and the antenna 420 constitute reception means.

  The data reception / heart rate display control unit 413 receives the received input data signal from the reception input circuit 419 and outputs it as biometric information, and receives the biometric information from the data reception unit 417 in the memory 418. From the biometric data display processing unit 415 and the biometric data display processing unit 415 that detects that the biometric information is stored in the data processing unit 416 and the memory 418 and outputs heartbeat information in a format suitable for displaying the biometric information. A biological information display unit 414 as display means for displaying a heart rate corresponding to the heart rate information, and a reception timing signal generation unit 421 for generating a reception timing signal for determining the reception timing are provided.

  In the second embodiment, the transmitter as the transmission side means has the same configuration as the transmitter 101 shown in FIG. 1, and its operation is also the same as the flowchart of FIG.

  FIG. 5 is a flowchart for explaining the operation of the heart rate monitor system according to the second embodiment, and is a flowchart showing the operation of the receiver 402.

  The operation of the second embodiment will be described below with reference to FIGS. 4 and 5 and with reference to FIGS. The description of the same parts as those of the first embodiment will be omitted or simplified.

  As described above, the transmitter 101, for the same heart rate data, has the first transmission level and the first transmission number as the transmission level, the second transmission level and the second transmission number as the second transmission number. The biological information signal to be transmitted is transmitted at predetermined time intervals, and the transmission operation is continuously performed with respect to each measured heart rate data. As a result, the transmitter 101 transmits the measured biological information signal at predetermined time intervals.

  The reception input circuit 419 of the receiver 402 receives the first level biological information signal from the transmitter 101 via the antenna 420, and uses the first level biological information as a received input data signal. (Step S501 in FIG. 5).

  The data receiving unit 417 demodulates the first level biological information and outputs it to the received data processing unit 416 (step S502).

  The reception data processing unit 416 determines whether normal data has been received as biometric information by performing an error check on the biometric information from the data reception unit 417 (step S503).

  If the reception data processing unit 416 determines in step S503 that a normal biological information signal has not been received from the data reception unit 417 (that is, if it is determined that data reception has failed), the process returns to step S501.

  On the other hand, if the reception data processing unit 416 determines in step S503 that a normal biological information signal has been received from the data reception unit 417 (that is, if it has been determined that data reception has been successful), the transmission included in the biological information. After checking the number (step S504), the reception timing generator 421 synchronizes the reception timing (step S505).

  The reception timing generation unit 421 starts the timing operation until the timing when the transmitter 101 outputs the next new biological information in the reception timing synchronization of step S505, and while the timing operation is being performed, the reception data processing unit A stop instruction signal is output to 416 so as to stop the reception operation. The reception data processing unit 416 stops the reception operation by stopping the power supply of the reception input circuit 419 in response to the stop instruction signal from the reception timing generation unit 421.

  Next, the received data processing unit 416 changes the received biometric information into a format that can be stored in the memory 418, and stores and saves it in the memory 418 (step S506).

  Next, the biometric data display processing unit 415 reads the biometric information stored in the memory 418 (step S507), converts it into displayable display data (step S508), and displays the biometric information display unit 414 as a display unit. Output (step S509). The biometric information display unit 414 receives display data from the biometric data display processing unit 415 and displays the corresponding biometric information. Thereby, the biological information display unit 414 displays the heart rate measured by the transmitter 101.

  On the other hand, if the reception timing generation unit 421 determines that the predetermined time has elapsed after starting the timing operation in step S505, the reception timing generation unit 421 outputs a release instruction signal for releasing the reception operation stop to the reception data processing unit 416. The reception data processing unit 416 restarts the reception operation of the reception input circuit 419 to receive and process the next new biological information, returns to step S501, and repeats the processing (step S510).

  According to the second embodiment, the same effects as those of the first embodiment can be obtained. In the second embodiment, after the receiver 402 normally receives the biological information from the transmitter 101, the reception operation of the biological information signal is not performed until the reception timing generator 421 counts a predetermined time. Therefore, biological information with the same data content but different transmission numbers is not received. Therefore, it is not necessary to discard biometric information having the same data contents but different transmission numbers, and the processing is simplified. Also, the power supply of the reception input circuit 419 and the like can be shut off for the predetermined time. Therefore, there is an effect that power saving can be achieved.

  In addition, when any one of the pieces of biometric information having the same data content transmitted a plurality of times is appropriately received, the biometric information of the next different data content is stored without storing the same content data again. Since it can be configured to receive from the first, appropriate reception is possible.

  FIG. 6 is a block diagram of a heart rate monitor system according to the third embodiment of the present invention. In the third embodiment, the signal level output from the transmitter is fixed to a predetermined value and output, and the reception sensitivity of the receiver is changed to a plurality of values.

  In FIG. 6, the heart rate monitor system measures a heartbeat of a user 600 as a biological signal and transmits a biological information signal representing the information on the heartbeat as a transmitter 601 and a transmitter 601. And a receiver 602 as a receiving means for receiving a biological information signal.

  The transmitter 601 is integrally attached to a chest belt (not shown), and is used by being attached to the chest of the user 600. The receiver 602 has, for example, a wristwatch type appearance, and is used by being worn on the arm of the user 600. Communication is possible between the transmitter 601 and the receiver 602, and signals are transmitted from the transmitter 601 to the receiver 602 by radio (for example, electromagnetic induction). The transmitter 601 is configured to detect a heartbeat of a human body, transmit a heart rate per unit time as a biological information signal to the receiver 602, and display the heart rate on the receiver 602 side.

  A transmitter 601 detects a heartbeat, performs a transmission control of a biological information signal related to the heartbeat, a heartbeat detection / transmission control unit 603, a memory 610 as a first storage unit that stores data such as heartbeat data, a transmission output A transmission output circuit 611 that receives a data signal and outputs it as a biological information signal, and an antenna 612 for wirelessly transmitting the biological information signal. The heartbeat detection / transmission control unit 603 constitutes transmission control means, and the transmission output circuit 611 and the transmission antenna 612 constitute transmission means.

  The heart rate detection / transmission control unit 603 calculates a heart rate per unit time based on the heart rate detected by the biometric information detection unit 604 and the biometric information detection unit 604 having the sensor 605 for detecting the heartbeat of the human body as biometric information. A biometric data storage processing unit 606 stored in the memory 610; a transmission data processing unit 607 that reads out from the memory 610 and controls transmission processing when the biometric information is stored in the memory 610 as the first storage unit; and transmission data processing A data transmission unit 608 is provided that converts the biological information read by the unit 607 into a signal format suitable for transmission (for example, a serial signal) and outputs the biological information to the transmission output circuit 611 as a transmission output data signal.

  Although the detailed operation will be described later, the transmitter 601 uses the same heart rate data as a biological information signal whose transmission level is fixed to a predetermined value and the transmission number is the first, and the transmission level is the same value as the predetermined value. The biological information signal having the second transmission number is transmitted at a predetermined time interval (for example, every 1 second). Further, the transmitter 601 repeats the above operation for each measured heartbeat data at a predetermined time interval (2 seconds when the transmission number is the above two), whereby the transmitter 601 It is configured to transmit a biological information signal related to the biological information.

  On the other hand, the receiver 602 includes a reception antenna 620, a reception input circuit 619 that detects and amplifies the biological information signal received by the antenna 620, and outputs it as a received input data signal, and second storage means that stores data such as biological information. As a memory 618, a received input data signal from the receiving input circuit 619 is received and stored as biometric information in the memory 618, and the heart rate is displayed based on the biometric information stored in the memory 618. A display control unit 613 is provided. The data reception / heart rate display control unit 613 constitutes a reception control unit, and the reception input circuit 619 and the antenna 620 constitute a reception unit.

  The data reception / heart rate display control unit 613 receives the received input data signal from the reception input circuit 619 and outputs it as biometric information, and receives the biometric information from the data reception unit 617 in the memory 618. Signals from the biometric data display processing unit 615 and the biometric data display processing unit 615 that detect that the biometric information is stored in the data processing unit 616 and the memory 618 and output a signal in a format suitable for displaying the biometric information. The biological information display unit 614 as a display means for displaying the corresponding heart rate, the reception sensitivity level switching unit 622 for switching and controlling the reception sensitivity of the reception input circuit 619 to a plurality of values, and the reception timing by the reception data processing unit 616 are controlled. A reception timing generation unit 621 is provided.

  Although the detailed operation will be described later, the receiver 602 changes the reception sensitivity to a plurality of values at a predetermined time interval (for example, one second interval) synchronized with the signal transmission time interval of the transmitter, and also transmits the transmitter 601. To receive a biological information signal. The receiver 602 receives biometric information from the transmitter 601 normally after receiving normal biometric information from the transmitter 601 until the next new biometric information is transmitted from the transmitter 601 in the same manner as in the second embodiment. Until the predetermined time elapses, the biological information signal receiving operation is not performed.

  FIG. 7 is a flowchart showing processing of the transmitter 601. 8 to 10 are flowcharts showing processing of the receiver 602.

  The operation of the third embodiment of the present invention will be described below with reference to FIGS.

  When the sensor 605 detects biological information of the human body 600 (in this embodiment, a heartbeat) (step S701), the biological information detection unit 604 performs processing such as waveform shaping to perform conversion processing into an electrical signal suitable for communication. (Step S702).

  Next, the biometric data accumulation processing unit 606 calculates a heart rate per unit time based on the biometric information from the biometric information detection unit 604 (step S703), and the heart rate data is stored in the memory 610 as biometric information. Is stored and stored (step S704).

  The OLE_LINK1 transmission data processing unit 607 detects that the biological information is stored in the memory 610, reads the biological information from the memory 610 (step S705), and converts it into a biological information signal shown in FIG. 17 (step S706). ). In step S706, the transmission data processing unit 607 stores the heart rate data read from the memory 610 in the biometric information unit and also stores transmission number data indicating the number of data to be transmitted in the transmission / reception information unit. Then, a biological information signal is generated, and the biological information signal is output to the data transmission unit 608.

  The data transmission unit 608 modulates the biological information signal by converting the biological information signal from the transmission data processing unit 607 into a serial signal, and outputs it to the transmission output circuit 611 as a transmission output data signal (step S707). ).

The transmission output circuit 611 outputs the transmission output data signal as a biological information signal through the antenna 612 at a predetermined transmission level fixed to a constant value (step S708). OLE_LINK1
On the receiver 602 side, the reception sensitivity level switching unit 622 outputs a reception sensitivity control signal to the reception input circuit 619 at predetermined time intervals (for example, at intervals of 1 second), thereby setting the reception sensitivity of the reception input circuit 619 to the predetermined value. Control to change at time intervals. The reception sensitivity level switching unit 622 first outputs a reception sensitivity control signal to the reception input circuit 619 and sets the reception sensitivity of the reception input circuit 619 to a first level (for example, a large level) (step S801).

  In this state, the reception input circuit 619 receives the biological information signal from the transmitter 601 via the antenna 620, and outputs the biological information to the data reception unit 617 as a reception input data signal (step S802).

  The data receiving unit 617 demodulates the biological information and outputs the demodulated information to the received data processing unit 616 (step S803).

  The reception data processing unit 616 determines whether normal data has been received as biometric information by performing an error check on the biometric information from the data reception unit 617 (step S804).

  If the reception data processing unit 616 determines in step S804 that a normal biological information signal has not been received from the data reception unit 617 (ie, if it has been determined that data reception has failed), the process returns to step S801.

  On the other hand, if the received data processing unit 616 determines in step S804 that a normal biological information signal has been received from the data receiving unit 617 (that is, if it has been determined that data reception has been successful), it is included in the biological information signal. The transmission number is inspected (step S805), stored in the memory 618 and saved (step S805).

  Next, the biometric data display processing unit 615 performs display processing in steps S806 to S808. That is, the biometric data display processing unit 615 reads the biometric information stored in the memory 618 (step S806), converts it into displayable display data (step S807), and outputs it to the biometric information display unit 614 (step S808). ).

  The biometric information display unit 614 receives display data from the biometric data display processing unit 615 and displays corresponding biometric information. Thereby, the biological information display unit 614 displays the heart rate measured by the transmitter 601.

  Next, the reception timing generation unit 621 synchronizes the reception timing (step S809). The reception timing generation unit 621 starts a timing operation until the next new biometric information is transmitted from the transmitter 601 in the reception timing synchronization. During the timing operation, the reception timing generation unit 621 The stop instruction signal is output so as to stop the reception operation. The reception data processing unit 616 stops the reception operation in response to the stop instruction signal from the reception timing generation unit 421, for example, by stopping the power supply of the reception input circuit 619.

  When the reception timing generation unit 621 determines that a predetermined reception timing has arrived (that is, the timing at which the next new biometric information is transmitted from the transmitter 601 has arrived) (step S810 in FIG. 9), the reception data A reception start instruction signal is output to the processing unit 616. In response to the reception start instruction signal, the reception data processing unit 616 supplies power to the reception input circuit 619 so that a reception operation can be performed.

  In response to an instruction from the reception data processing unit 616, the reception input circuit 619 performs a reception operation for the next new biological information signal (step S811). The reception input circuit 619 receives a biological information signal from the transmitter 601 via the antenna 620 and outputs the biological information to the data reception unit 617 as a reception input data signal.

  The data receiving unit 617 demodulates the biological information and outputs it to the received data processing unit 616 (step S812).

  The reception data processing unit 616 performs error checking of the biometric information from the data reception unit 617 to determine whether normal data is received as biometric information, and the reception timing generation unit 621 measures a predetermined time. Whether or not (timed out) is determined (step S813).

  If the reception data processing unit 616 determines in step S813 that a normal biological information signal has been received from the data reception unit 617 (that is, if it has been determined that data reception has been successful), the transmission number included in the biological information signal. The biometric information is converted into a format suitable for storage, stored in the memory 618 and stored (step S814).

  Next, the biometric data display processing unit 615 performs display processing in steps S815 to S817. That is, the biometric data display processing unit 615 reads the biometric information stored in the memory 618 (step S815), converts it into displayable display data (step S816), and outputs the display data to the biometric information display unit 614. The process returns to S810 (step S817). The biometric information display unit 614 receives display data from the biometric data display processing unit 615 and displays corresponding biometric information. As a result, the biological information display unit 614 displays the heart rate corresponding to the new biological information measured by the transmitter 601.

On the other hand, the reception data processing unit 616 determines in step S813 that a normal biological information signal has not been received from the data reception unit 617 (that is, if it has been determined that data reception has failed), or reception timing. When the generation unit 621 determines that the predetermined time has passed (originally a time-out due to exceeding the time to receive), the reception sensitivity level switching unit 622 determines that the reception sensitivity of the reception input circuit 619 is the first level. The sensitivity is switched and controlled by outputting a reception sensitivity control signal to the reception input circuit 619 so that the second level is different (for example, the reception sensitivity is lower than the first level). Accordingly, the reception input circuit 619 changes the reception sensitivity to the second level in response to the reception sensitivity control signal (step S818).
The transmission data processing unit 607 reads the biological information from the memory 610 again (step S709), and converts it into a biological information signal shown in FIG. 17 (step S710). In step S710, the transmission data processing unit 607 stores the heart rate data read from the memory 610 in the biological information unit, and also stores transmission number data indicating the number of data to be transmitted in the transmission / reception information unit. Then, a biological information signal is generated, and the biological information signal is output to the data transmission unit 608.

  The data transmission unit 608 modulates the biological information signal by converting the biological information signal from the transmission data processing unit 607 into a serial signal, and outputs it to the transmission output circuit 611 as a transmission output data signal (step S711). ).

The transmission output circuit 611 outputs the transmission output data signal as a biological information signal through the antenna 612 at a predetermined transmission level fixed to a constant value (step S712).

In this state, the reception timing generation unit 621 determines whether or not the reception timing has occurred again, that is, the predetermined reception timing has arrived again from the reception sensitivity changing process in step S818 (that is, again). If it is determined that the predetermined time has passed (step S819 in FIG. 10), the reception input circuit 619 determines that the biometric information signal transmitted again from the transmitter 601 (the biometric data itself is the same as the previous one but the transmission number is the same). A reception operation of a different (larger signal than the previous one) is performed (step S820). The reception input circuit 619 receives a biological information signal from the transmitter 601 via the antenna 620 and outputs the biological information to the data reception unit 617 as a reception input data signal.

  The data receiving unit 617 demodulates the biological information and outputs it to the received data processing unit 616 (step S821).

  The reception data processing unit 616 performs error checking of the biometric information from the data reception unit 617 to determine whether normal data is received as biometric information, and the reception timing generation unit 621 measures a predetermined time. Whether or not (timed out) is determined (step S822).

  If the reception data processing unit 616 determines in step S822 that a normal biological information signal has been received from the data reception unit 617 (that is, if it has been determined that data reception has been successful), the transmission number included in the biological information signal. The biometric information is converted into a format suitable for storage, stored in the memory 618, and stored.

  Next, the biometric data display processing unit 615 performs display processing in steps S823 to S825. That is, the biometric data display processing unit 615 reads the biometric information stored in the memory 618 (step S823), converts it into displayable display data (step S824), and outputs it to the biometric information display unit 614 (step S825). ). The biometric information display unit 614 receives display data from the biometric data display processing unit 615 and displays corresponding biometric information. As a result, the biological information display unit 614 displays the heart rate corresponding to the biological signal newly measured by the transmitter 601.

  Next, the reception sensitivity level switching unit 622 controls the reception sensitivity of the reception input circuit 619 to switch to the first level, and returns to Step 810 (Step S826). The reception input circuit 619 switches the reception sensitivity from the second level to the first level in response to the control of the reception sensitivity level switching unit 622. Thereafter, the process returns to step S810 to perform the process.

  On the other hand, when the reception data processing unit 616 determines in step S822 that normal data is not received as biometric information from the data reception unit 617, and the reception timing generation unit 621 counts a predetermined time (timed out). ), The process returns to step S801.

  As described above, according to the third embodiment, the signal level output from the transmitter 101 is fixed to a predetermined value and transmitted, and the reception sensitivity of the receiver 102 is set to a plurality of reception levels. It is configured to change and control the sensitivity.

  That is, the transmitter 101 transmits biometric information signals having the same contents at the same transmission level multiple times, and the receiver 102 receives each of the biometric information signals while changing the reception sensitivity according to the reception situation. The received data is fetched and stored, and thereafter, the biometric information signal having the same data content is not received.

  Therefore, as in the second embodiment, communication is good when the transmission level is low at a short distance, and communication is good when the transmission level is high at a long distance. This is advantageous in that it can be maintained and power saving can be achieved.

  In addition, when any one of the pieces of biometric information having the same data content transmitted a plurality of times is appropriately received, the biometric information of the next different data content is stored without storing the same content data again. Since it can be configured to receive from the first, appropriate reception is possible.

  FIG. 11 is a block diagram of a heart rate monitor system according to the fourth embodiment of the present invention. The fourth embodiment is configured to transmit while changing the signal transmission level of the transmitter to a plurality of values, and is configured to receive by changing the reception sensitivity of the receiver to a plurality of values. ing.

  In FIG. 11, the heart rate monitor system measures a heart beat of a user 1100 as a biological signal and transmits a biological information signal representing the heart beat information. And a receiver 1102 as a receiving means for receiving a biological information signal.

  The transmitter 1101 is integrally attached to a chest belt (not shown), and is attached to the chest of the user 1100 for use. The receiver 1102 has, for example, a wristwatch type appearance and is used by being worn on the arm of the user 1100. Communication is possible between the transmitter 1101 and the receiver 1102, and signals are transmitted from the transmitter 1101 to the receiver 1102 by radio (for example, electromagnetic induction). The transmitter 1101 is configured to detect a heartbeat of a human body, transmit a heart rate per unit time as a biological information signal to the receiver 1102, and display the heart rate on the receiver 1102 side.

  A transmitter 1101 detects a heartbeat and performs a transmission control of a biological information signal related to the heartbeat, a heartbeat detection / transmission control unit 1103, a memory 1110 as a first storage unit that stores data such as heart rate data, and an output signal A level change control control is possible, a transmission output circuit 1111 that receives a transmission output data signal and outputs it as a biological information signal, and an antenna 1112 for wirelessly transmitting the biological information signal. The heartbeat detection / transmission control unit 1103 constitutes a transmission control unit, and the transmission output circuit 1111 and the transmission antenna 1112 constitute a transmission unit.

  The heartbeat detection / transmission control unit 1103 calculates a heart rate per unit time based on the heartbeat detected by the biological information detection unit 1104 having the sensor 1105 for detecting the heartbeat of the human body, and stores it as biological information. A biometric data storage processing unit 1106 that stores data in the memory 1110; a transmission data processing unit 1107 that controls transmission processing by reading from the memory 1110 when the biometric information is stored in the memory 1110 serving as the first storage unit; The biometric information read out by the 1107 is converted into a signal format suitable for transmission (for example, serial signal) and output to the transmission output circuit 1111 as a transmission output data signal, and the output level of the transmission output circuit is switched and controlled. For this purpose, a transmission output level switching unit 1109 is provided.

  Although the detailed operation will be described later, the transmitter 1101 refers to a transmission / reception level setting table described later, and transmits a plurality of biological information signals having different transmission numbers and different transmission levels for the same heartbeat data at predetermined time intervals. (For example, every 1 second). For each measured heart rate data, the above operation is repeated at predetermined time intervals. Thereby, the transmitter 1101 is configured to transmit each measured biological information at predetermined time intervals.

  On the other hand, the receiver 1102 has a receiving antenna 1120, a reception input circuit 1119 for detecting and amplifying the biological information signal received by the antenna 1120 and outputting it as a received input data signal, and second storage means for storing data such as biological information. As a memory 1118, data received from the reception input circuit 1119 is received and stored as biometric information in the memory 1118, and the heart rate is displayed based on the biometric information stored in the memory 1118. A reception / heart rate display control unit 1113 is provided. The data reception / heart rate display control unit 1113 constitutes reception control means, and the reception input circuit 1119 and the reception antenna 1120 constitute reception means.

  The data reception / heart rate display control unit 1113 receives the received input data signal from the reception input circuit 1119 and outputs it as biometric information, and receives the biometric information from the data receiving unit 1117 in the memory 1118. A biometric data display processing unit 1115 that detects that biometric information is stored in the data processing unit 1116 and the memory 1118 and outputs biometric information (heart rate information) in a format suitable for displaying the biometric information. A biometric information display unit 1114 as display means for displaying the heart rate corresponding to the biometric information from the unit 1115, a reception sensitivity level switching unit 1122 for switching and controlling the reception sensitivity of the reception input circuit 1119 to a plurality of values, and a reception data processing unit A reception timing generation unit 1121 for controlling the reception timing by 1116 is provided.

  Although the detailed operation will be described later, the receiver 1102 refers to a transmission / reception level setting table described later, and is set at a predetermined time interval (for example, every 1 second) that is set in advance to synchronize with the transmission level switching timing of the transmitter 1101. The reception sensitivity is changed to a plurality of values, and the biological information is received from the transmitter 1101. The receiver 1102 receives the biological information signal from the transmitter 1101 after receiving the biological information normally until the reception timing generator 1121 counts a predetermined time until the next new biological information is transmitted from the transmitter 1101. The receiving operation is not performed.

  FIG. 12 is a flowchart showing processing of the transmitter 1101. FIGS. 13 to 15 are flowcharts showing processing of the receiver 1102.

  FIG. 16 is a transmission / reception level setting table showing setting values of the transmission level of the transmitter 1101 and the reception sensitivity of the receiver 1102, and is stored in both the memory 1110 of the transmitter 1101 and the memory 1118 of the receiver 1102. Yes.

  The operation of the fourth embodiment of the present invention will be described below with reference to FIGS.

  When the sensor 1105 detects biological information (in this embodiment, heartbeat) of the human body 1100 (step S1201), the biological information detection unit 1104 performs processing such as waveform shaping to perform conversion processing into an electrical signal suitable for communication. (Step S1202).

  Next, the biometric data accumulation processing unit 1106 calculates a heart rate per unit time based on the biometric information from the biometric information detection unit 1104 (step S1203), and the memory 1110 stores the heart rate data as biometric information. Is stored and stored (step S1204).

  When the transmission data processing unit 1107 detects that the biological information (heart rate data) is stored in the memory 1110, the transmission data processing unit 1107 refers to the transmission / reception level setting table of FIG. 16 stored in the memory 1110 (step S1205). The transmission output level switching unit 1109 is controlled so that the output level switching unit 1109 sets the transmission output level of the transmission output circuit 1111. Here, the transmission output level switching unit 1109 refers to the transmission / reception level setting table, and outputs a biological information signal having a transmission number of the first and a transmission level of the first transmission level (transmission level is small in the example of FIG. 16). The transmission output circuit 1111 is controlled so that the transmission output circuit 1111 transmits (step S1206).

  Next, the transmission data processing unit 1107 reads the biological information from the memory 1110 (step S1207) and converts it into a biological information signal shown in FIG. 17 (step S1208). In step S1208, the transmission data processing unit 1107 stores the heart rate data read from the memory 1110 in the biometric information unit, and transmission number data indicating the number of data to be transmitted (currently the data indicating the first). ) Is stored in the transmission / reception information unit, a biological information signal is generated, and the biological information signal is output to the data transmission unit 1108.

  The data transmission unit 1108 modulates the biological information signal by converting the biological information signal from the transmission data processing unit 1107 into a serial signal, and outputs it to the transmission output circuit 1111 as a transmission output data signal (step S1209). ).

  The transmission output circuit 1111 outputs the transmission output data signal as a biological information signal via the antenna 1112 at the first transmission level (step S1210).

  Next, the transmission data processing unit 1107 refers to the transmission / reception level setting table of FIG. 16 stored in the memory 1110, and all the numbers (first to third three types in the example of FIG. 16). If the transmission level is set and transmission is not performed, the process returns to step S1205 to repeat the process (step S1211). As a result, biometric information signals having the same data contents and different transmission numbers are transmitted at a transmission level set in association with the transmission number at a predetermined time interval (for example, every 1 second).

  When the transmission data processing unit 1107 completes transmission at the predetermined time interval in step S1211, using transmission levels for all transmission numbers (first to third in the example of FIG. 16). In step S1201, the process is repeated.

  Through the processing in steps S1205 to S1211, the same biological information data is stored in the biological information section and the transmission number data (in this example, the first number is different in the transmission / reception information section) for the same biological information data (heart rate data in this example). The biometric information signal storing the first, second, and third number data) is sequentially transmitted at a predetermined time interval (for example, every 1 second) at the first transmission level (transmission level is small) and the transmission level is first. Transmission is performed at each of a second transmission level (transmission level is large) higher than the transmission level and a third transmission level (transmission level is large) that is the same as the second transmission level.

  After the same biometric information is transmitted by three types of methods, the process returns to step S1201 in step S1211, and thereafter, the process is repeated for new biometric information at predetermined time intervals in the same manner as described above.

  On the other hand, on the receiver 1102 side, the reception sensitivity control signal is sent to the reception input circuit 1119 at a predetermined time interval (for example, every 1 second) such that the reception sensitivity level switching unit 1122 is synchronized with the transmission level switching timing on the transmitter 1101 side. , The reception sensitivity of the reception input circuit 1119 is controlled to change at the predetermined time interval. First, the reception sensitivity level switching unit 1122 outputs a reception sensitivity control signal to the reception input circuit 1119, and sets the reception sensitivity of the reception input circuit 1119 to the first level (high level in this example) in FIG. S1301). As a result, the transmitter 1101 transmits at the first transmission level (low level), and the receiver 1102 receives at the first level reception sensitivity (high reception sensitivity).

  In this state, the reception input circuit 1119 receives a biological information signal from the transmitter 1101 via the antenna 1120, and outputs the biological information to the data reception unit 1117 as a reception input data signal (step S1302).

  The data receiving unit 1117 demodulates the biological information and outputs it to the received data processing unit 1116 (step S1303).

  The reception data processing unit 1116 performs error checking on the biometric information from the data reception unit 1117 to determine whether normal data is received as biometric information (step S1304).

  If the reception data processing unit 1116 determines in step S1304 that a normal biological information signal has not been received from the data reception unit 1117 (ie, if it has been determined that data reception has failed), the process returns to step S1301.

  If the reception data processing unit 1116 determines in step S1304 that a normal biological information signal has been received from the data reception unit 1117 (that is, if it has been determined that data reception has been successful), the reception data processing unit 1116 is a signal suitable for storage in the memory. The data is converted into a format and the transmission number included in the biological information signal is inspected, stored in the memory 618, and stored (step S1305).

  Next, the biometric data display processing unit 1115 performs display processing in steps S1306 to S1308. That is, the biometric data display processing unit 1115 reads the biometric information stored in the memory 1118 (step S1306), converts it into displayable display data (step S1307), and outputs it to the biometric information display unit 1114 (step S1308). ).

  The biometric information display unit 1114 receives display data from the biometric data display processing unit 1115 and displays corresponding biometric information. Thereby, the biological information display unit 1114 displays the heart rate measured by the transmitter 1101.

  Next, the reception timing generation unit 1121 synchronizes reception timing (step S1309). The reception timing generation unit 1121 starts a time counting operation until the next new biometric information is transmitted from the transmitter 1101 in the reception timing synchronization. During the time counting operation, the reception data processing unit 1116 In response to this, a stop instruction signal is output so as to stop the reception operation. It is assumed that the time measured until the next new biometric information is transmitted from the transmitter 1101 is calculated and derived from the transmission number checked in step S1305. The reception data processing unit 1116 stops the reception operation by stopping the power supply of the reception input circuit 1119 in response to the stop instruction signal from the reception timing generation unit 1121.

  When the reception timing generation unit 1121 determines that a predetermined reception timing has been reached (that is, a predetermined time has elapsed) (step S1310 in FIG. 14), the reception input circuit 1119 performs the next new biological information reception operation. This is performed (step S1311). The reception input circuit 1119 receives a biological information signal from the transmitter 1101 via the antenna 1120 and outputs the biological information to the data reception unit 1117 as a reception input data signal.

  The data receiving unit 1117 demodulates the biological information and outputs the demodulated information to the received data processing unit 1116 (step S1312).

  The reception data processing unit 1116 performs an error check on the biometric information from the data reception unit 1117 to determine whether normal data has been received as biometric information, and to pass a predetermined time beyond the point at which it should originally be received. It is determined whether or not it has elapsed (whether or not time-out has occurred) (step S1313).

  When the reception data processing unit 1116 determines in step S1313 that a normal biological information signal has been received from the data reception unit 1117 (that is, when it has been determined that data reception has been successful), the transmission number included in the biological information signal. The biometric information is converted into a format suitable for storage, stored in the memory 1118, and stored (step S1314).

  Next, the biometric data display processing unit 1115 performs display processing in steps S1315 to S1317. That is, the biometric data display processing unit 1115 reads the biometric information stored in the memory 1118 (step S1315), converts it into displayable display data (step S1316), and outputs it to the biometric information display unit 1114. The process returns to S1310 (step S1317). The biometric information display unit 1114 receives display data from the biometric data display processing unit 1115 and displays corresponding biometric information. Thereby, the biological information display unit 1114 displays the heart rate measured by the transmitter 1101.

  On the other hand, the reception data processing unit 1116 determines in step S1313 that a normal biological information signal has not been received from the data reception unit 1117 (that is, if it has been determined that data reception has failed), or is originally received. If it is determined that a predetermined time has passed (timed out) beyond the point in time to be received, the transmission / reception level setting table in FIG. 16 is referred to (step S1318 in FIG. 15), and the reception sensitivity level switching unit 1122 receives the signal. An instruction is given to reset the reception sensitivity of the input circuit 1119 to a predetermined level.

  In the present embodiment, the reception data processing unit 1116 gives the reception sensitivity level switching unit 1122 the same reception sensitivity of the reception input circuit 1119 as the first level (2 (re-reception) in FIG. 16). , The reception sensitivity is the same as that of the first level. In response to the instruction from the reception data processing unit 1116, the reception sensitivity level switching unit 1122 controls the reception sensitivity of the reception input circuit 1119 to the same level as the first level (step S1319).

  In this state, the reception input circuit 1119 performs reception processing again (step S1320).

  The data receiving unit 1117 demodulates the biological information and outputs it to the received data processing unit 1116 (step S1321).

  The reception data processing unit 1116 performs an error check on the biometric information from the data reception unit 1117 to determine whether normal data has been received as biometric information, and to pass a predetermined time beyond the point at which it should originally be received. It is determined whether or not it has elapsed (whether or not time-out has occurred) (step S1322).

  If the reception data processing unit 1116 determines in step S1322 that a normal biological information signal has been received from the data reception unit 1117 (that is, if it has been determined that data reception has been successful), the transmission number included in the biological information signal. The biometric information is converted into a format suitable for storage, stored in the memory 1118, and stored (step S1323).

  Next, the biometric data display processing unit 1115 performs the display processing in steps S1324 to S1326. That is, the biometric data display processing unit 1115 reads the biometric information stored in the memory 1118 (step S1324), converts it into displayable display data (step S1325), and outputs it to the biometric information display unit 1114 (step S1326). ). The biometric information display unit 1114 receives display data from the biometric data display processing unit 1115 and displays corresponding biometric information. Thereby, the biological information display unit 1114 displays the heart rate measured by the transmitter 1101.

  Next, the reception sensitivity level switching unit 1122 controls the reception input circuit 1119 to switch the reception sensitivity to the first level, and returns to step 1310 (step S1327). The reception input circuit 1119 switches the reception sensitivity to the first level in response to the control of the reception sensitivity level switching unit 1122. Thereafter, the process returns to step S1310 for processing.

  On the other hand, the reception data processing unit 1116 determines in step S1322 that a normal biological information signal has not been received from the data reception unit 1117 (that is, if it has been determined that data reception has failed) or is originally received. If it is determined that a predetermined time has passed (timed out) beyond the point in time, all numbers (in the example of FIG. 16, refer to the transmission / reception level setting table of FIG. 16 stored in the memory 1118). If the reception operation is not performed according to the first to third types of reception sensitivity levels, the process returns to step S1318 to repeat the process (step S1328).

  In this case, in step S1319, the reception data processing unit 1116 sets the reception sensitivity of the reception input circuit 1119 again to a predetermined level for the reception sensitivity level switching unit 1122 with reference to the transmission / reception level setting table of FIG. To instruct. In the present embodiment, the reception data processing unit 1116 makes the reception sensitivity of the reception input circuit 1119 a third level smaller than the second level (3 (re-reception) in FIG. 16) with respect to the reception sensitivity level switching unit 1122. ). In response to the instruction from the reception data processing unit 1116, the reception sensitivity level switching unit 1122 sets the reception sensitivity of the reception input circuit 1119 to the second level again, and the reception input circuit 1119 performs reception again. (Step S1320).

  In step S1328, the reception data processing unit 1116 returns to step S1301 when reception is completed using the reception sensitivity levels of all the numbers (first to third types in the example of FIG. 16). Repeat the above process.

  As described above, according to the fourth embodiment, the signal transmission level of the transmitter 1101 is changed to a plurality of values at predetermined time intervals, and the reception sensitivity of the receiver 1102 is changed. Is changed to a plurality of values at predetermined time intervals.

  That is, the transmitter 1101 transmits a plurality of biometric information signals having the same data contents at different transmission levels, and the receiver 1102 receives each of the biometric information signals while changing the reception sensitivity according to the reception situation. The received data is taken in, and the biometric information signal having the same data content is not received again.

  Therefore, it exceeds the effect described in the second and third embodiments, and in the communication by the combination of the first transmission level and the first reception level, it is possible to suppress the occurrence of an excessive reception level at the time of short-range communication. In communication using a combination of level and reception second level, the communication characteristics at long distances are improved. In communication using a combination of transmission third level and reception third level, the reception sensitivity of the receiver is low, so the effect of external noise Since the biometric information from the transmitter is received while suppressing the noise, the noise resistance performance is improved, and it becomes possible to satisfactorily perform long-distance communication from a short distance.

In addition, when any one of the pieces of biometric information having the same data content transmitted a plurality of times is appropriately received, the biometric information of the next different data content is stored without storing the same content data again. Since it can be configured to receive from the first, it is possible to perform efficient reception, and effects such as power saving can be achieved.

FIG. 18 is a block diagram of a heart rate monitor system according to the fifth embodiment of the present invention. The fifth embodiment adds a communication environment detection unit for determining whether the communication environment is in the air or underwater by a pressure sensor to the transmitter and the receiver, respectively, in the fourth embodiment of the present invention, The transmitter is configured to transmit while changing the signal transmission level determined by the communication environment state (in air or underwater) detected by the communication environment state detection unit to a plurality of values, and in the receiver The reception sensitivity determined by the communication environment state (in the air or underwater) detected by the communication environment state detection unit is changed to a plurality of values for reception. The signal shown in the present embodiment is a radio signal, and it is common that the communication distance is shortened by absorbing the radio signal underwater. For this reason, in order to obtain the same communication distance performance in water as in air, it is necessary to set a transmission level or reception sensitivity higher than that in air.

  In FIG. 18, the heart rate monitor system measures a heartbeat of a user 1800 as a biological signal and transmits a biological information signal representing the heartbeat information as a transmitting side means, and a transmitter 1801 from the transmitter 1801. And a receiver 1802 as a receiving side means for receiving a biological information signal.

  The transmitter 1801 is integrally attached to a chest belt (not shown), and is attached to the chest of the user 1800 for use. The receiver 1802 has, for example, a wristwatch type appearance and is used by being worn on the arm of the user 1800. Communication is possible between the transmitter 1801 and the receiver 1802, and signals are transmitted from the transmitter 1801 to the receiver 1802 by radio (for example, electromagnetic induction). The transmitter 1801 is configured to detect a heartbeat of a human body, transmit a heart rate per unit time as a biological information signal to the receiver 1802, and display the heart rate on the receiver 1802 side.

  A transmitter 1801 detects a heartbeat, performs a transmission control of a biological information signal related to the heartbeat, a heartbeat detection / transmission control unit 1803, a memory 1810 as a first storage unit that stores data such as heart rate data, and an output signal A level change control control is possible, a transmission output circuit 1811 that receives a transmission output data signal and outputs it as a biological information signal, and an antenna 1812 for wirelessly transmitting the biological information signal. The heartbeat detection / transmission control unit 1803 constitutes a transmission control means, and the transmission output circuit 1811 and the transmission antenna 1812 constitute a transmission means.

  The heart rate detection / transmission control unit 1803 calculates a heart rate per unit time based on the heart rate detected by the biometric information detection unit 1804 having the sensor 1805 for detecting the heart rate of the human body, and stores it as biometric information. A transmission output level is set according to a communication environment state obtained from the communication environment detection unit 1814 and a communication environment detection unit 1814 having a sensor 1813 for detecting a communication environment state around the transmitter 1801. And when the biometric information is stored in the memory 1810 as the first storage unit, the biometric information read out from the memory 1810 and controls transmission processing is transmitted. The biometric information read out by the transmission data processing unit 1807 is transmitted. Converted to a signal format suitable for use (for example, serial signal) Data transmission unit 1808 to be output to the transmission output circuit 1811, a transmission output level switching section 1809 for controlling the switching of the output level of the transmission output circuits as.

  Although the detailed operation will be described later, the transmitter 1801 refers to a transmission / reception level setting table to be described later according to the communication environment state, and for the same heartbeat data, the transmitter 1801 has a plurality of different transmission numbers and different transmission levels. Biological information signals are transmitted at predetermined time intervals (for example, at intervals of 1 second). For each measured heart rate data, the above operation is repeated at predetermined time intervals. Accordingly, the transmitter 1801 is configured to transmit each measured biological information at a predetermined time interval.

  On the other hand, the receiver 1802 has a receiving antenna 1822, a reception input circuit 1821 for detecting and amplifying the biological information signal received by the antenna 1822 and outputting it as a received input data signal, and second storage means for storing data such as biological information. Received data received from the memory 1820 and the reception input circuit 1821 as data stored in the memory 1820 as biometric information, and also displays the heart rate based on the biometric information stored in the memory 1820 A heart rate display control unit 1815 is provided. The data reception / heart rate display control unit 1815 constitutes a reception control unit, and the reception input circuit 1821 and the reception antenna 1822 constitute a reception unit.

  The data reception / heart rate display control unit 1815 includes a data reception unit 1819 that receives a reception input data signal from the reception input circuit 1821 and outputs it as biological information, and a sensor 1824 that detects a communication environment state around the receiver 1802. The reception environment processing unit 1818, the reception data processing unit 1818 for setting the reception sensitivity according to the communication environment state obtained from the communication environment detection unit 1825, and storing the biological information from the data reception unit 1819 in the memory 1820, and the biological data in the memory 1820 Corresponding to the biometric information from the biometric data display processing unit 1817 and the biometric data display processing unit 1817 that detects that the information is stored and outputs the biometric information in a format suitable for displaying the biometric information (heart rate information). Biological information display unit 1816 as display means for displaying heart rate, reception input circuit 1821 Reception sensitivity level switching section 1824 to switch control the reception sensitivity to a plurality of values, and a reception timing generator 1823 controls the reception timing by the received data processing section 1818.

  Although the detailed operation will be described later, the receiver 1802 refers to a transmission / reception level setting table to be described later according to the communication environment state, and sets a predetermined time interval (synchronized with the transmission level switching timing of the transmitter 1101). For example, the reception sensitivity is changed to a plurality of values at intervals of 1 second), and the biological information is received from the transmitter 1801. The receiver 1802 receives the biological information signal from the transmitter 1801 until the reception timing generator 1823 counts a predetermined time until the next new biological information is transmitted from the transmitter 1801. The receiving operation is not performed.

  FIG. 19 is a flowchart showing processing of the transmitter 1801. 20 to 22 are flowcharts showing processing of the receiver 1802.

  FIG. 23 is a transmission / reception level setting table showing the transmission level of the transmitter 1801 and the setting values of the reception sensitivity of the receiver 1802 set according to the state of the communication environment. The memory 1810 and the receiver of the transmitter 1801 It is stored in both of the memory 1820 1802.

  The operation of the fifth embodiment of the present invention will be described below with reference to FIGS.

  When the sensor 1805 detects biological information of the human body 1800 (in this embodiment, a heartbeat) (step S1901), the biological information detection unit 1804 performs processing such as waveform shaping to perform conversion processing into an electrical signal suitable for communication. (Step S1802).

  Next, the biometric data accumulation processing unit 1806 calculates the heart rate per unit time based on the biometric information from the biometric information detection unit 1804 (step S1903), and the memory 1810 uses the heart rate data as biometric information. Is stored and stored (step S1904).

  When the transmission data processing unit 1807 detects that the biological information (heart rate data) is stored in the memory 1810, the transmission data processing unit 1807 stores the information in the memory 1810 according to the communication environment state (in the air or underwater) obtained from the communication environment detection unit 1814. Referring to the transmission / reception level setting table of FIG. 23 (step S1906), the transmission output level switching unit 1809 is controlled so that the transmission output level switching unit 1809 sets the transmission output level of the transmission output circuit 1811. Here, the transmission output level switching unit 1809 refers to the transmission / reception level setting table, the transmission number is the first and the transmission level is the first transmission level (in the example of FIG. 23, the communication environment is in the air). The transmission output circuit 1811 is controlled so that the transmission output circuit 1811 transmits a biological information signal having a low transmission level when detected and a high transmission level when detecting that the communication environment is underwater (step S1907).

  Next, the transmission data processing unit 1807 reads the biological information from the memory 1810 (step S9208) and converts it into a biological information signal shown in FIG. 17 (step S1909). In step S1909, the transmission data processing unit 1807 stores the heart rate data read from the memory 1810 in the biometric information unit, and also transmits transmission number data indicating the number of data to be transmitted (currently data representing the first). ) In the transmission / reception information unit, a biological information signal is generated, and the biological information signal is output to the data transmission unit 1808.

  The data transmission unit 1808 modulates the biological information signal by converting the biological information signal from the transmission data processing unit 1807 into a serial signal or the like, and outputs it as a transmission output data signal to the transmission output circuit 1811 (step S1910). ).

  The transmission output circuit 1911 outputs the transmission output data signal as a biological information signal through the antenna 1812 at the first transmission level (step S1911).

  Next, the transmission data processing unit 1807 refers to the transmission / reception level setting table of FIG. 23 stored in the memory 1810, and all the numbers (first to third three types in the example of FIG. 23). If the transmission level is set and transmission is not performed, the process returns to step S1905 to repeat the process (step S1912). Thereby, at a predetermined time interval (for example, every 1 second), biological information signals having the same data contents but different transmission numbers are transmitted at a transmission level set in association with the transmission number and the communication environment state. Become.

  When the transmission data processing unit 1807 completes transmission at the predetermined time interval using the transmission levels for all transmission numbers (first to third in the example of FIG. 23) in step S1912. In step S1901, the process is repeated.

  Through the processing in steps S1905 to S1912, the same biometric information data is stored in the biometric information section and the transmission number data (in this example, the first number) is stored in the biometric information section for the same biometric information data (heart rate data in this example). The biometric information signal storing the first, second, and third number data) is sequentially transmitted at a predetermined time interval (for example, every 1 second) at the first transmission level (if the communication environment state is in the air). Low level, transmission level is high when the communication environment is underwater), second transmission level is higher than the first transmission level (high transmission level when the communication environment is in the air, and when the communication environment is underwater) 3rd transmission level with the same transmission level as the 2nd transmission level (transmission level is large when the communication environment is in the air, transmission level is large when the communication environment is underwater) Each in, will be sent in.

  After the same biometric information is transmitted by three types of methods, the process returns to step S1901 in step S1912. Thereafter, the process is repeated for new biometric information at predetermined time intervals in the same manner as described above.

  On the other hand, on the receiver 1802 side, the reception sensitivity control signal is sent to the reception input circuit 1821 at a predetermined time interval (for example, every 1 second) such that the reception sensitivity level switching unit 1824 is synchronized with the transmission level switching timing on the transmitter 1801 side. , The reception sensitivity of the reception input circuit 1821 is controlled to change at the predetermined time interval. First, the reception data processing unit 1818 obtains a communication environment state by the communication environment detection unit 1826 (step 2001). Next, the reception data processing unit 1818 sets the reception sensitivity of the reception sensitivity input circuit 1821 to the first level shown in FIG. 23 with respect to the reception sensitivity level switching unit (the reception sensitivity is high when the communication environment state is in the air, and the communication environment state is underwater). In this case, it is instructed to set the reception sensitivity extra large). The reception sensitivity level switching unit 1824 outputs a reception sensitivity control signal to the reception input circuit 1821, and sets the reception sensitivity of the reception input circuit 1821 to the first level in FIG. 23 (when the communication environment is in the air, the reception sensitivity is high, If the communication environment state is underwater, the transmission level is set to extra large (step S2002). Thereby, the transmitter 1801 transmits the signal at the first transmission level (the transmission level is low when the communication environment state is in the air, and the transmission level is high when the communication environment state is underwater). Reception is performed with reception sensitivity (reception sensitivity is large when the communication environment state is in the air, and reception sensitivity is oversized when the communication environment state is underwater).

  In this state, a biological information signal from the transmitter 1801 is received via the reception input circuit 1821 antenna 1822, and the biological information is output to the data reception unit 1819 as a reception input data signal (step S2003).

  The data receiving unit 1819 demodulates the biological information and outputs it to the received data processing unit 1818 (step S2004).

  The reception data processing unit 1818 performs error checking on the biometric information from the data reception unit 1819 to determine whether normal data is received as biometric information (step S2005).

  If the reception data processing unit 1818 determines in step S2005 that a normal biological information signal has not been received from the data reception unit 1819 (that is, if it is determined that data reception has failed), the process returns to step S2001.

  If the received data processing unit 1818 determines in step S2005 that a normal biological information signal has been received from the data receiving unit 1819 (that is, if it has been determined that data reception has been successful), the received data processing unit 1818 is a signal suitable for storage in the memory. The data is converted into a format and the transmission number included in the biological information signal is inspected, stored in the memory 1820, and stored (step S2006).

  Next, the biometric data display processing unit 1817 performs display processing in steps S2007 to S2009. That is, the biometric data display processing unit 1817 reads the biometric information stored in the memory 1820 (step S2007), converts it into displayable display data (step S2008), and outputs it to the biometric information display unit 1816 (step S2009). ).

  The biometric information display unit 1816 receives display data from the biometric data display processing unit 1817 and displays corresponding biometric information. Thereby, the biological information display unit 1816 displays the heart rate measured by the transmitter 1801.

  Next, the reception timing generator 1823 synchronizes the reception timing (step S2010). In the reception timing synchronization, the reception timing generation unit 1823 starts a time counting operation until the next new biological information is transmitted from the transmitter 1801, and during the time counting operation, the reception data processing unit 1818 is started. In response to this, a stop instruction signal is output so as to stop the reception operation. It is assumed that the time taken until the next new biometric information is transmitted from the transmitter 1801 is calculated and derived from the transmission number checked in step S2006. In response to the stop instruction signal from the reception timing generation unit 1823, the reception data processing unit 1818 stops the reception operation, for example, by stopping the power supply of the reception input circuit 1821.

  When the reception timing generation unit 1823 determines that a predetermined reception timing has been reached (that is, a predetermined time has elapsed) (step S2011 in FIG. 21), the reception data processing unit 1818 determines the communication environment state from the communication environment detection unit 1826. After obtaining (step S2012), the reception sensitivity level switching unit 1824 supports the reception sensitivity to be set to the first reception sensitivity, and the reception sensitivity level switching unit 1824 receives the first value from the reception input circuit 1821. The reception sensitivity is set (step 2013). The reception input circuit 1821 performs the next new biometric information reception operation (step S2014). The reception input circuit 1821 receives a biological information signal from the transmitter 1801 via the antenna 1822 and outputs the biological information to the data reception unit 1819 as a reception input data signal.

  The data receiving unit 1819 demodulates the biological information and outputs it to the received data processing unit 1818 (step S2015).

  The reception data processing unit 1818 performs an error check on the biometric information from the data reception unit 1819 to determine whether normal data has been received as biometric information, and for a predetermined time beyond the point at which it should be received. It is determined whether or not it has elapsed (whether or not it has timed out) (step S2016).

  If the reception data processing unit 1818 determines in step S2016 that a normal biological information signal has been received from the data reception unit 1819 (that is, if it has been determined that data reception has been successful), the transmission number included in the biological information signal. The biometric information is converted into a format suitable for storage, stored in the memory 1820, and stored (step S2017).

  Next, the biometric data display processing unit 1817 performs display processing in steps S2018 to S2020. That is, the biometric data display processing unit 1817 reads the biometric information stored in the memory 1820 (step S2018), converts it into displayable display data (step S2019), and outputs it to the biometric information display unit 1816. The process returns to S2011 (step S2020). The biological information display unit 1816 receives display data from the biological data display processing unit 1818 and displays corresponding biological information. Thereby, the biological information display unit 1816 displays the heart rate measured by the transmitter 1801.

  On the other hand, the reception data processing unit 1818 determines in step S2016 that a normal biological information signal has not been received from the data reception unit 1819 (that is, if it has been determined that data reception has failed), or is originally received. When it is determined that the predetermined time has passed (timed out) beyond the time point to be performed, the communication environment detection unit 1826 obtains the communication environment state (step S2021 in FIG. 22), and the diagram is based on the obtained communication environment state. 23 (step S2022), the reception sensitivity level switching unit 1824 is instructed to reset the reception sensitivity of the reception input circuit 1821 to a predetermined level.

  In the present embodiment, the reception data processing unit 1818 makes the reception sensitivity of the reception input circuit 1821 the same as the first level with respect to the reception sensitivity level switching unit 1824 (2 (re-reception) in FIG. 23). For example, when it is assumed that the communication status is underwater, an instruction is given to set the reception sensitivity to the same level as the first level). In response to the instruction from the reception data processing unit 1818, the reception sensitivity level switching unit 1824 controls the reception sensitivity of the reception input circuit 1821 to the same level as the first level (step S2023).

  In this state, the reception input circuit 1821 performs reception processing again (step S2024).

  The data receiving unit 1819 demodulates the biological information and outputs it to the received data processing unit 1818 (step S2025).

  The reception data processing unit 1818 performs an error check on the biometric information from the data reception unit 1819 to determine whether normal data has been received as biometric information, and for a predetermined time beyond the point at which it should be received. It is determined whether or not it has elapsed (whether or not it has timed out) (step S2026).

If the reception data processing unit 1818 determines in step S2026 that a normal biological information signal has been received from the data reception unit 1819 (that is, if it has been determined that data reception has been successful), the transmission number included in the biological information signal. The biometric information is converted into a format suitable for storage, stored in the memory 1820, and stored (step S2027).

Next, the biometric data display processing unit 1817 performs the display processing in steps S2028 to S2030. That is, the biometric data display processing unit 1817 reads the biometric information stored in the memory 1820 (step S2028), converts it into displayable display data (step S2029), and outputs it to the biometric information display unit 1816 (step S2030). ). The biometric information display unit 1816 receives display data from the biometric data display processing unit 1817 and displays corresponding biometric information. Thereby, the biological information display unit 1816 displays the heart rate measured by the transmitter 1801. Thereafter, the process returns to step S2011 to perform the process.

On the other hand, the reception data processing unit 1818 determines in step S2026 that a normal biological information signal has not been received from the data reception unit 1819 (that is, if it has been determined that data reception has failed) or is originally received. When it is determined that a predetermined time has passed (timed out) beyond the point in time, all numbers (in the example of FIG. 23, refer to the transmission / reception level setting table of FIG. 23 stored in the memory 1820). If the receiving operation is not performed according to the first to third receiving sensitivity levels, the process returns to step S2021 to repeat the process (step S2031).

  In this case, in step S2023, the reception data processing unit 1818 sets the reception sensitivity of the reception input circuit 1821 to a predetermined level again with respect to the reception sensitivity level switching unit 1122 with reference to the transmission / reception level setting table of FIG. To instruct. In the present embodiment, the reception data processing unit 1818 makes the reception sensitivity of the reception input circuit 1821 a third level smaller than the second level (3 (re-reception) in FIG. 23) with respect to the reception sensitivity level switching unit 1824. ). In response to the instruction from the reception data processing unit 1818, the reception sensitivity level switching unit 1824 sets the reception sensitivity of the reception input circuit 1821 to the third level again, and the reception input circuit 1821 performs reception again. (Step S2024).

  In step S2031, the reception data processing unit 1818 returns to step S2001 when reception is completed using reception sensitivity levels of all the numbers (first to third types in the example of FIG. 23). Repeat the above process.

  As described above, according to the fifth embodiment, the signal transmission level corresponding to the communication environment state of the transmitter 1801 is configured to be transmitted while being changed to a plurality of values at predetermined time intervals. The reception sensitivity according to the communication environment state of the receiver 1802 is configured to be changed to a plurality of values at predetermined time intervals.

  That is, the transmitter 1801 transmits biometric information signals having the same data contents at different transmission levels according to the communication environment, and the receiver 1102 changes the reception sensitivity according to the communication environment state according to the reception situation. Each of the biological information signals is received, the normally received data is taken in, and the biological information signal having the same data content is not received again.

  Therefore, it exceeds the effect described in the second, third, and fourth embodiments, and in the communication by the combination of the transmission first level and the reception first level, the occurrence of excessive reception level during short-range communication is suppressed, In communication by the combination of the second transmission level and the second reception level, the communication characteristics at long distances are improved, and in the communication by the third transmission level and the third reception level, the receiver reception sensitivity is low, so the external Noise resistance performance is improved because biological information is received from the transmitter while suppressing the influence of noise, and long-distance communication can be performed satisfactorily from a short distance according to the communication environment state such as in the air or underwater. It becomes possible.

  In addition, when any one of the pieces of biometric information having the same data content transmitted a plurality of times is appropriately received, the biometric information of the next different data content is stored without storing the same content data again. Since it can be configured to receive from the first, it is possible to perform efficient reception, and effects such as power saving can be achieved.

  In addition, the communication environment state shown in the present embodiment is in the air and in the water, and the pressure sensor is used as the communication environment detection means for discriminating this. However, the communication environment state defined by the present invention is in the air or in the water. It is not limited. The communication environment state intended by the present invention is a state including an element that may hinder the operation of propagating an information signal from the transmission side to the reception side by wireless communication. That is, since water has a higher absorption rate of electromagnetic waves than air, there is a characteristic that the communication distance is shortened. Therefore, it is determined whether the communication environment is in the air or not. Another example of defining the communication environment state is a change in salinity in water. Even in the same water, the absorption rate of electromagnetic waves differs between fresh water and seawater due to the presence or absence of salt. Further, it is generally known that the propagation distance characteristic of electromagnetic waves changes with the concentration of salt, that is, the communication distance changes. In order to detect the communication environment state due to the change in the salinity concentration in the water, a salinity concentration sensor is configured, and the transmission level and the reception sensitivity are determined according to the radio wave absorption rate that changes depending on the state of the salinity concentration. You may comprise. As an operation at that time, when the salinity concentration is high, a method may be adopted in which the transmission output is increased (transmitting at a higher output level) and the reception sensitivity is increased (a smaller signal is received). Another example of defining the communication environment state is a change in external electromagnetic wave noise that occurs in the vicinity of the wireless communication frequency band. A detection sensor for detecting the level of the external electromagnetic wave noise may be configured, and the transmission level may be determined or the reception sensitivity may be determined according to the interference that varies depending on the state of the external noise level. As the operation at that time, when the external electromagnetic wave is high in noise, the transmission output may be increased (transmitted at a higher output level) and / or the reception sensitivity may be decreased (only a larger signal is received). . Another example of defining further communication environment states is that the electromagnetic wave propagation characteristics in the atmosphere change between daytime and nighttime. In this case, a light receiving sensor for detecting whether it is daytime or nighttime may be mounted, and a transmission level or reception sensitivity may be determined according to a radio wave communication state that changes between daytime and nighttime.

  Further, the communication environment detection unit shown in the present embodiment is not limited to the configuration of the present embodiment (fifth), but the transmitter shown in the first embodiment, the transmitter shown in the second embodiment, It is possible to add to the receiver shown in the third embodiment.

  The present invention can be applied to a method and a system for transmitting a signal from a transmission side means to a reception side means. In addition to a heart rate monitor, at least one of transmission side means and reception side means including a biological information measurement system that measures biological information such as a heart rate, a pulse, and walking of a person, such as a pulse meter and a pedometer, is used by a user. Is suitable for a portable biological information measuring system configured to be carried by the user.

1 is a block diagram of a heart rate monitor system according to a first embodiment of the present invention. It is a flowchart which shows the process in the 1st Embodiment of this invention. It is a flowchart which shows the process in the 1st Embodiment of this invention. It is a block diagram of the receiver used for the heart rate monitor system which concerns on the 2nd Embodiment of this invention. It is a flowchart which shows the process in the 2nd Embodiment of this invention. It is a block diagram of the heart rate monitor system concerning a 3rd embodiment of the present invention. It is a flowchart which shows the process in the 3rd Embodiment of this invention. It is a flowchart which shows the process in the 3rd Embodiment of this invention. It is a flowchart which shows the process in the 3rd Embodiment of this invention. It is a flowchart which shows the process in the 3rd Embodiment of this invention. It is a block diagram of the heart rate monitor system concerning a 4th embodiment of the present invention. It is a flowchart which shows the process in the 4th Embodiment of this invention. It is a flowchart which shows the process in the 4th Embodiment of this invention. It is a flowchart which shows the process in the 4th Embodiment of this invention. It is a flowchart which shows the process in the 4th Embodiment of this invention. It is a figure which shows the transmission / reception level setting table used for the 4th Embodiment of this invention. It is a figure which shows the format of the biometric information signal used for embodiment of this invention. It is a block diagram of the heart rate monitor system concerning a 5th embodiment of the present invention. It is a flowchart which shows the process in the 5th Embodiment of this invention. It is a flowchart which shows the process in the 5th Embodiment of this invention. It is a flowchart which shows the process in the 5th Embodiment of this invention. It is a flowchart which shows the process in the 5th Embodiment of this invention. It is a figure which shows the transmission / reception level setting table used for the 5th Embodiment of this invention.

Explanation of symbols

100, 600, 1100, 1800... User 101, 601, 1101, 1801... Transmitter 102, 402, 602, 1102, 1802... 603, 1103, 1803 ... Heart rate detection / transmission control units 104, 604, 1104, 1804 constituting the transmission control means Biological information detection unit 105, 605, 1105, 1804 ... Sensor (biological information detection unit) ) 106, 606, 1106, 1806 ... biometric data storage processing units 107, 607, 1107, 1807 ... transmission data processing units 108, 608, 1108, 1808 ... data transmission units 109, 1109, 1809 ... Transmission output level switching units 110, 610, 1110, 1810 ... as the first storage means Antenna 1813 ... sensors constituting the transmission output circuit 112,612,1112,1812 ... transmitting means constituting the memory 111,611,1111,1811 ... transmitting unit (communication environment detection unit, the transmitter side)
1814: Communication environment detection unit (transmitter side)
113, 413, 613, 1113, 1815... Data reception / heart rate display control unit 114, 414, 614, 1114, 1816 constituting the reception control means. Biometric information display units 115, 415, 615 as display means. 1115, 1817 ... biometric data display processing unit 116, 416, 616, 1116, 1818 ... received data processing unit 117, 417, 617, 1117, 1819 ... data receiving unit 118, 418, 618, 1118 , 1820... Memories 119, 419, 619, 1119, 1821 as second storage means, reception input circuits 120, 420, 620, 1120, 1822 constituting the receiving means, antennas constituting the receiving means 421, 621, 1121, 1823... Reception timing generation units 622, 112 , 1824 ... reception sensitivity level switching section 1825 ... sensor (communication environment detection unit, the receiver side)
1826 Communication environment detector (receiver side)

Claims (38)

In a communication method for transmitting a signal from a transmission side to a reception side,
The transmitting side transmits a signal representing information of the same content a plurality of times at predetermined intervals, and at least one of the transmitting side and the receiving side communicates the signals in a plurality of communication states having different communication levels. A characteristic communication method.   2. The communication method according to claim 1, wherein the transmitting side transmits the signals at different transmission levels, and the receiving side receives the signals with a constant receiving sensitivity.   The communication method according to claim 1, wherein the transmitting side transmits the signals at a constant transmission level, and the receiving side receives the signals with different reception sensitivities.   The communication method according to claim 1, wherein the transmitting side transmits at least two signals in the signals at different transmission levels, and the receiving side receives the signals with at least two different reception sensitivities. .   5. The communication method according to claim 2, wherein the signal is a radio signal, and the different transmission levels are determined according to a radio communication environment state.   5. The communication method according to claim 3, wherein the signal is a radio signal, and the different reception sensitivity is determined according to a radio communication environment state.   7. The receiving apparatus according to claim 1, wherein the receiving side has storage means for storing information, and stores only one of the signals representing the same information in the storage means. The communication method as described in one.   A transmission number is added to the signal, and the receiving side determines whether or not the information has the same content based on the transmission number in the signal, and one of the signals representing the information of the same content. The communication method according to claim 7, wherein only the data is stored in the storage unit.   A transmission number is added to the signal, and the receiving side determines the next timing to be received based on the transmission number in the signal, and the information of the same content without receiving the signal of the same content The communication method according to claim 7, wherein only one of the signals representing is stored in the storage unit. In a communication system having transmission side means for transmitting a signal and reception side means for receiving a signal from the transmission side means,
The transmission side means transmits a signal representing the same content information a plurality of times at predetermined intervals, and at least one of the transmission side means and the reception side means communicates the signals in a plurality of communication states having different communication levels. A communication system.   11. The communication system according to claim 10, wherein the transmission side means transmits the signals at different transmission levels, and the reception side means receives the signals with a constant reception sensitivity.   11. The communication system according to claim 10, wherein the transmission side means transmits the signals at a constant transmission level, and the reception side means receives the signals with different reception sensitivities.   11. The transmitting side means transmits at least two signals in each of the signals at different transmission levels, and the receiving side means receives each of the signals with at least two different reception sensitivities. Communications system.   14. The signal according to claim 11 or 13, wherein the signal is a wireless signal and has communication environment detection means, and the different transmission levels are determined according to a wireless communication environment state obtained from the communication environment detection means. Communications system.   14. The signal according to claim 12, wherein the signal is a wireless signal and has communication environment detection means, and the different reception sensitivities are determined according to a wireless communication environment state obtained from the communication environment detection means. Communications system.   16. The receiving means according to claim 10, further comprising storage means for storing information, wherein only one of the signals having the same contents is stored in the storage means. The communication system according to 1.   A predetermined transmission number is added to the signal, and the receiving side means determines whether or not the information is the same content based on the transmission number in the signal, and includes the signal representing the information of the same content. The communication system according to claim 16, wherein only one of the two is stored in the storage unit. In a transmitter having a transmission means for transmitting a signal to a receiver, and a transmission control means for controlling the transmission means,
The transmission control means controls the transmission means so as to transmit a signal representing information of the same content a plurality of times at predetermined intervals at different transmission levels.   19. The transmitter according to claim 18, wherein the transmission control unit controls the transmission unit to transmit at least two signals of the signals at different transmission levels.   The said signal is a radio signal, has a communication environment detection means, The said different transmission level is determined by the radio | wireless communication environment state obtained from the said communication environment detection means. Transmitter.   20. The transmitter according to claim 18, wherein a predetermined transmission number is added to the signal.   The transmitter according to any one of claims 18 to 21, further comprising a sensor for detecting biological information, wherein the signal is a biological information signal related to the biological information. In a receiver having a receiving means for receiving a signal from a transmitter and a receiving control means for controlling the receiving means,
The reception control means controls the reception means so as to receive signals representing information of the same content transmitted from the transmitter a plurality of times at predetermined intervals with different sensitivities.   24. The receiver according to claim 23, wherein the reception control means controls the reception means so as to receive each signal with at least two different reception sensitivities.   25. The signal according to claim 23 or 24, wherein the signal is a wireless signal and has communication environment detection means, and the different reception sensitivities are determined according to a wireless communication environment state obtained from the communication environment detection means. Receiving machine.   A storage means for storing information is provided, wherein the reception control means stores only one of the signals including the same content information received by the reception means in the storage means. Item 26. The receiver according to any one of Items 23 to 25.   A transmission number is added to the signal, and the reception control means determines whether the information is the same content based on the transmission number in the signal, and one of the signals representing the information of the same content. 27. The receiver according to claim 26, wherein only the data is stored in said storage means.   The receiver according to any one of claims 23 to 27, wherein the signal is a biological information signal related to biological information.   29. The receiver according to claim 28, further comprising display means for displaying the biological information. A transmitting-side unit that transmits a biological information signal that is a signal related to biological information; and a receiving-side unit that receives a biological information signal from the transmitting-side unit, and at least one of the transmitting-side unit and the receiving-side unit is a user. In the biological information measurement system that is carried and used by
The transmitting-side means transmits the biological information signal representing the same content information a plurality of times at predetermined intervals, and at least one of the transmitting-side means and the receiving-side means transmits each biological information signal to a plurality of communication levels. The biological information measuring system characterized by communicating in the communication state.   31. The biological information measuring system according to claim 30, wherein the transmitting side means transmits the biological information signals at different transmission levels, and the receiving side means receives the biological information signals with a constant reception sensitivity. .   31. The biological information measurement system according to claim 30, wherein the transmitting side means transmits each biological information signal at a constant transmission level, and the receiving side means receives each biological information signal with different reception sensitivities. .   The transmitting side means transmits at least two biological information signals in the biological information signals at different transmission levels, and the receiving side means receives the biological information signals with at least two different reception sensitivities. The biological information measuring system according to claim 30.   34. The biological information signal is a wireless signal and has communication environment detection means, and the different transmission levels are determined according to the wireless communication environment state obtained from the communication environment detection means. The biological information measuring system described.   34. The biological information signal is a wireless signal, has a communication environment detection unit, and determines the different reception sensitivity according to a wireless communication environment state obtained from the communication environment detection unit. Biological information measurement system.   36. The receiver according to claim 30, wherein the receiving means has storage means for storing information, and stores only one of the signals having the same contents in the storage means. The biological information measurement system described in 1.   A transmission number is added to the signal, and the receiving side means determines whether or not the information is the same content based on the transmission number in the signal, and 1 in the signal representing the information of the same content. 37. The biological information measuring system according to claim 36, wherein only one of them is stored in the storage means.   A transmission number is added to the signal, and the receiving side means determines the timing to be received next based on the transmission number in the signal, and receives the same content without receiving the same content signal. 37. The biological information measuring system according to claim 36, wherein only one of signals representing information is stored in the storage means.

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