JP6856396B2 - Communication measurement system, communication device, and communication device program - Google Patents

Description

The present invention relates to communication measurement systems, communication devices, and programs for communication devices.

In athletics track and field competitions, athletes orbit the track of the stadium. In such a competition or practice of the competition, the split time, which is the cumulative time from the start, or, for example, the lap time for each lap of the track is measured. The split time and lap time can also be measured by the measurer pressing the stopwatch. However, when multiple competitors are orbiting the track at the same time, the measurer has to operate the stopwatch for each competitor, which is difficult to work with and may cause forgetting to press or making a mistake. there were.

On the other hand, in sports competitions such as marathons where athletes aim for a goal while passing through measurement points set along the course in order, work such as determining that the athlete has passed the measurement points and measuring the time passed has been performed. Measurement systems using electronic devices may be used for automation.
In such a measurement system, a wireless device worn by the athlete detects a trigger point based on an increase or decrease in the electromagnetic field strength of the electromagnetic field generated by a loop coil arranged on the track, and the trigger point is detected. Time information including the time measured at that time is transmitted to the receiving device (see, for example, Patent Document 1).

Further, in a wireless communication system that performs wireless communication based on Bluetooth (registered trademark) Low Energy, which is a short-range wireless communication standard, advertisement packets that are identification information are transmitted before communication is established. In order to reduce power consumption, it has been proposed that when one communication device receives a scan request transmitted by another communication device, the transmission interval of the advertisement packet is changed to a predetermined interval (for example, a patent). Reference 2).

Japanese Patent No. 4865521 Japanese Patent No. 5892151

However, in the measurement system of the invention described in Patent Document 1, since the communication device worn by the athlete cannot confirm that the communication device on the receiving side has received the time information, the time information is transmitted until the trigger point is passed. You need to keep doing it. Then, in a competition such as a marathon in which a plurality of athletes are running, a plurality of athletes may pass the measurement points at a predetermined time. In such a case, in the invention described in Patent Document 1, since the communication device worn by the athlete continues to transmit the time information, interference may occur between the communication devices worn by a plurality of athletes. is there.

Further, in the invention described in Patent Document 2, when there are a plurality of peripheral or central communication devices, only the transmission interval of the advertisement packet is changed, and the plurality of communication devices continue to transmit the identification information. There is. Therefore, even in the invention described in Patent Document 2, interference may occur between a plurality of communication devices.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a communication measurement system, a communication device, and a program of a communication device capable of reducing interference between communication devices on the runner side.

In order to achieve the above object, the communication measurement system (measurement system 1) according to one aspect of the present invention includes a first communication device (communication device 20) and a second communication device (clock 10) that communicates with the first communication device. ), Each of the first communication device and the second communication device transmits and receives a radio wave (for example, an advertisement packet) including identification information for identifying the communication device (wireless communication control unit). 107, communication control unit 1013, wireless communication control unit 207), and a control unit (control unit 101, control unit 201) that controls the transmission of the radio wave, and the communication unit of the second communication device transmits. When the control unit of the second communication device transmits radio waves at each transmission interval and determines that the response radio waves to the transmission radio waves from the first communication device have been received, the next said after the transmission interval has passed. The communication unit is controlled so as not to transmit the transmitted radio wave.

Further, in the communication measurement system according to one aspect of the present invention, the response radio wave is an incidental information transmission request (scan request (SCAN_RQ)) that requests the first communication device to transmit incidental information to the second communication device. ) May be included.

Further, in the communication measurement system according to one aspect of the present invention, the second communication device uses a sensor (109) for detecting a state related to the environment in which the second communication device is used, and the second communication device. The incidental information includes at least one of sensors (109) for detecting a state related to the user, and the incidental information includes information requesting the retransmission of the radio wave, information requesting the transmission of the detection result detected by the sensor, and the first item. It may be at least one of the information indicating that the radio wave has been received from one communication device.

Further, in the communication measurement system according to one aspect of the present invention, when the control unit of the second communication device determines that the reception intensity of the radio wave is equal to or higher than a predetermined threshold value, the control unit transmits the transmitted radio wave. The communication unit may be controlled so as to restart.

Further, in the communication measurement system according to one aspect of the present invention, the control unit of the second communication device receives the response radio wave, transmits information for a request included in the response radio wave, and then, for a predetermined time, said The communication unit may be controlled so as not to receive radio waves from the first communication device.

Further, in the communication measurement system according to one aspect of the present invention, the communication unit (wireless communication control unit 207) of the first communication device transmits a first transmission radio wave (for example, an advertisement packet) as a communication signal, and the first transmission radio wave (for example, an advertisement packet) is transmitted. The first reception period for receiving the radio waves from the two communication devices is provided, and the communication unit (wireless communication control unit 107, communication control unit 1013) of the second communication device performs the first transmission from the first communication device. A second reception period for receiving radio waves is provided, and the second communication device is in a state of approaching the first communication device in response to the communication signal received in the second reception period. The communication unit of the second communication device includes a storage unit (106) that stores the time determined by the control unit as the measurement time, and the communication unit of the second communication device stores the measurement time stored by the storage unit in the second transmission radio wave (for example, advertises). It may be transmitted to the first communication device as a packet).

Further, in the communication measurement system according to one aspect of the present invention, the control unit of the second communication device has a time when the first transmission radio wave is received and a reception intensity when the first transmission radio wave is received. The time when the value exceeds the predetermined threshold value, the time between the time when the reception strength when receiving the first transmission radio wave exceeds the predetermined threshold value and the time when the reception strength falls below the predetermined threshold value. When the reception strength becomes maximum during the period from when the reception strength when receiving the first transmission radio wave exceeds the predetermined threshold value to when the reception strength subsequently falls below the predetermined threshold value. At least one of the times may be the measurement time determined to be in the approaching state.

Further, in the communication measurement system according to one aspect of the present invention, the first transmission radio wave includes the identification information of the first communication device, and the second transmission radio wave includes the identification information of the first communication device and the measurement. It may include information about time.

In order to achieve the above object, the communication device (clock 10) according to one aspect of the present invention includes a communication unit (wireless communication control unit 107, communication control unit 1013) that transmits a transmission radio wave having a transmission period at each transmission interval. If it is determined that the response radio wave to the transmitted radio wave is received from another communication device within the transmission period, the control unit that controls the communication unit so as not to transmit the next transmitted radio wave that has passed the transmission interval. (101) and.

Further, in the communication device according to one aspect of the present invention, the time when the control unit receives the transmission radio wave from the other communication device during the reception period for receiving the transmission radio wave from the other communication device. The time when the reception intensity when receiving the transmission radio wave from the other communication device exceeds the predetermined threshold value, and the reception intensity when receiving the transmission radio wave from the other communication device sets the predetermined threshold value. When the time is an intermediate point between the time when the reception strength is exceeded and the time when the reception strength falls below the predetermined threshold value, and when the reception strength when receiving the transmitted radio wave from the other communication device exceeds the predetermined threshold value. After that, at least one of the times when the reception intensity becomes maximum during the period from when the reception intensity falls below the predetermined threshold value is measured as the measurement time, and the measured measurement time is included in the transmission radio wave. The communication unit may be controlled so as to transmit the radio wave.

In order to achieve the above object, the program of the communication device according to one aspect of the present invention includes a procedure of transmitting a transmission radio wave to the computer of the communication device at each transmission interval and a response radio wave to the transmission radio wave from another communication device. When it is determined that the radio wave has been received, the procedure of controlling not to transmit the next transmitted radio wave that has passed the transmission interval is executed.

In order to achieve the above object, the program of the communication device according to one aspect of the present invention is the transmission radio wave from the other communication device during the reception period in which the computer of the communication device receives the transmission radio wave from the other communication device. The procedure for detecting the above, the procedure for measuring the time when the detection is performed as the measurement time, the procedure for including the measured measurement time in the transmission radio wave transmitted by the own device at each transmission interval, and the procedure for transmission by the own device. When it is determined that the response radio wave to the transmitted radio wave is received from the other communication device, the procedure of controlling not to transmit the next transmitted radio wave that has passed the transmission interval is executed.

According to the present invention, interference between communication devices on the runner side can be reduced.

It is a figure for demonstrating the outline of the measurement system which concerns on this embodiment. It is a figure for demonstrating the outline of the advertising packet in BLE. It is a block diagram which shows the schematic structure of the measurement system which concerns on this embodiment. It is a figure which shows the example of the information which the storage part of the communication device which concerns on this embodiment stores. It is a figure which shows the example of the information which the storage part of the communication device which concerns on this embodiment stores. It is a figure explaining the operation of the clock and the communication device during the competition which concerns on this embodiment. It is a figure which shows the example of the intermittent operation in the transmission of the measurement time information which concerns on this embodiment. It is a sequence diagram of the clock and the communication device in the intermittent operation which concerns on this embodiment. It is a figure which shows the state which the clock is receiving the communication signal transmitted by the communication device which concerns on this embodiment. It is a figure which shows the example of the strength of the communication signal transmitted by the communication device which concerns on this embodiment, and the radio wave received by a timepiece. It is a figure which shows the example of the current waveform when the communication device which concerns on this embodiment transmits a transmission signal, and the timepiece receives. It is a figure explaining an example in which a communication device receives the measurement time data transmitted by the clock which concerns on this embodiment. It is a figure which shows the example of the current waveform at the time of the communication device receiving the measurement time data transmitted by the clock which concerns on this embodiment. It is a figure which shows the example of the image displayed on the display part of the communication device which concerns on this embodiment. It is a figure which shows the example of the image of the measurement time information of an individual athlete displayed on the display part of the communication device which concerns on this embodiment. It is a figure which shows the example of the image which is displayed when the display part of the communication device which concerns on this Embodiment is a horizontally long state. It is a figure which shows the example of the image of the measurement time information displayed on the display part of the clock which concerns on this embodiment. It is a figure which shows another example of the image of the measurement time information displayed on the display part of the timepiece which concerns on this embodiment. It is a figure which shows the example of the current waveform of the timepiece and a communication device in the case where a timepiece constantly transmits an advertisement packet during the competition which concerns on this embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The scope of the present invention is not limited to the following embodiments.

First, the outline of the present embodiment will be described.
FIG. 1 is a diagram for explaining the outline of the measurement system 1 (communication measurement system) according to the present embodiment. As shown in FIG. 1, the measurement system 1 includes one or more clocks 10 (first clock 10-1, second clock 10-2, ...; second communication device, communication device) and communication equipment. 20 (first communication device, communication device) is included. When the measurement system 1 includes a plurality of clocks 10, the configurations of the plurality of clocks 10 may be the same or different. In the following description, an example in which the configurations of the plurality of clocks 10 are the same will be described. Hereinafter, in the present embodiment, when one of the first clock 10-1, the second clock 10-2, ... Is not specified, it is referred to as a clock 10.

The clock 10 and the communication device 20 are a communication method of a Wi-Fi (Wireless Fitness) standard, a Bluetooth (registered trademark) LE (Low Energy) (hereinafter referred to as BLE) standard, and the like. In the following description, an example in which the communication method is BLE will be described.

The communication device 20 is installed at, for example, a starting point. In the embodiment, it is assumed that the goal point is the same as the start point. The point where the communication device 20 exists can be an arbitrary place for measurement, and the start point and the goal point can be arbitrary different points. The watch 10 is worn by the athlete. The competitor sets the number of laps of the track by operating the clock 10 before the start of the competition. In addition, the competitor operates the clock 10 so that the communication function is turned on. The clock 10 starts a radio wave scanning operation (second reception period). The communication device 20 is operated by, for example, a measurer. The measurer operates the communication device 20 at the start of the competition to set the start of the competition. The communication device 20 starts transmitting a communication signal (first transmission radio wave) at the same time as setting the start of the competition. The communication signal is an advertising packet. When the clock 10 receives the advertising packet from the communication device 20, it starts measuring the lap time (measurement time) and the split time (measurement time). When the clock 10 receives the communication signal from the communication device 20, the clock 10 measures the lap time and the split time. The clock 10 transmits an advertising packet including the measured lap time and split time and identification information for identifying the clock 10 to the communication device 20 as a communication signal (second transmission radio wave). Here, the identification information is, for example, a Bluetooth® Device address. The communication device 20 constantly performs a scanning operation (first reception period), extracts identification information, lap time, and split time from the communication signal received from the clock 10, and stores the identification information in association with the lap time and split time. When the clock 10 receives the communication signal from the communication device 20 for the set number of laps, the clock 10 ends the measurement and transmits the communication signal to the communication device 20. The number of laps can be rephrased as the number of approaches counted as the number of times the watch 10 approaches the communication device 20.
Further, in FIG. 1, ..., -P2, -P1, P0, P1, P2, ... Show an example of the position where the clock 10 approaches the communication device 20.

After the start of communication, the clock 10 constantly scans and transmits advertising packets at predetermined time intervals, and ends communication when it receives a communication signal from the communication device 20 for a set number of laps.
Further, after the start of the competition, the communication device 20 constantly scans and transmits the advertising packet at predetermined time intervals, and ends the communication when the end of the competition is set by the measurer.
The communication device 20 measures the lap time, the split time, and the like by detecting the state of being close to the clock 10. The state in which the communication device 20 and the clock are close to each other is detected when the radio wave intensity received by the clock 10, which will be described later, becomes stronger.

In this way, the clock 10 measures when the advertising packet transmitted by the communication device 20 is received, and transmits the advertising packet to the communication device 20 including the measurement result. The communication device 20 receives the measurement result included in the advertising packet transmitted by the clock 10. In the present embodiment, measurement is performed without establishing communication between the clock 10 and the communication device 20. That is, in the present embodiment, the clock 10 and the communication device 20 each scan each other.

<Advertising packet in BLE>
Here, the outline of the advertising packet in BLE will be described.
FIG. 2 is a diagram for explaining an outline of an advertising packet in BLE. The figure indicated by reference numeral f1 is a diagram showing a packet structure. The figure indicated by reference numeral f2 is a figure showing the structure of advertising data.
In BLE, communication is performed using the 2.4 GHz band, and the number of channels is 40. In advertising, channels 37, 38, and 39 are used. Further, as shown by reference numeral f1 in FIG. 2, the configuration of the advertising packet in BLE is the same as the packet configuration in BLE (see, for example, BLUETOOTH (registered trademark) SPECIFICATION Version 4.0 [Vol 1], pages 36 to 47). ). Specifically, the advertising packet is composed of Premium, Access Addless, PDU, and CRC. The Premium is 1 octet, the Access Addless is 4 octets, the PDU is 2 to 38 octets, and the CRC is 3 octets. In addition, the PDU is composed of a Header and a Payload. This PFU Header contains a 4-bit PDU type. The PDU Type can set a scan request (SCAN_RQ), a scan response (SCAN_RSP), and the like. And the PDU Payload includes AdvA and AdvData (Advertising Data). AdvA is an address for identifying the device.

Further, as shown by reference numeral f2 in FIG. 2, the AdvData is composed of 31 octets, the first 1 octet is the length of the data, and the rest is composed of Ad Type (Advertising Data type) and Ad Data (Advertisement Data). (See, for example, BLUETOOTH® SPECIFICATION Version 4.0 [Vol 3], page 375). Then, by setting the AD Type, the data can be used as "Manufactureer Special Data". In this case, the Manufactureer can arbitrarily determine the length and content of the Ad Data.
In this embodiment, the data is used as "Manufactureer Special Data" in the advertising packet.

FIG. 3 is a block diagram showing a schematic configuration of the measurement system 1 according to the present embodiment.
The clock 10 includes a control unit 101, an oscillation circuit 102, a frequency dividing circuit 103, an operation unit 104, a display unit 105, a storage unit 106, a wireless communication control unit 107 (communication unit), an antenna 108, a sensor 109, and a battery 110. ..
The communication device 20 includes a control unit 201, an operation unit 202, a display unit 203, a storage unit 204, a sensor 205, an antenna 206, a wireless communication control unit 207 (communication unit), a battery 208, an oscillation circuit 209, and a frequency dividing circuit 210. Be prepared.

First, the clock 10 will be described.
The clock 10 is, for example, a digital clock having a timekeeping function and a communication function. After the start of communication, the clock 10 constantly scans the radio waves from the communication device 20 and detects the communication signal transmitted by the communication device 20. The transmission signal transmitted by the communication device 20 includes identification information for identifying the communication device 20. The clock 10 measures the lap time and the split time when the communication signal is received. In the following description, the lap time and the split time are referred to as measurement time information. The clock 10 transmits a communication signal including the measured measurement time information and the identification information of the own clock 10, and stops transmitting the communication signal when the response signal is received from the communication device 20. When the clock 10 detects the communication signal from the communication device 20 again, the clock 10 measures and transmits the communication signal. When the clock 10 receives the communication signal from the communication device 20 a predetermined number of times, the clock 10 ends scanning, measurement, and transmission of the communication signal.

The control unit 101 includes a timekeeping unit 1011, an information processing unit 1012 (control unit), and a communication control unit 1013 (communication unit). The control unit 101 measures the time using the reference signal output by the frequency dividing circuit 103, and displays the timed result on the display unit 105. The control unit 101 sets the number of times the communication signal is received from the communication device 20 based on the operation result output by the operation unit 104, and stores the set number of times in the storage unit 106. The control unit 101 controls the wireless communication control unit 107 to receive the communication signal transmitted by the communication device 20, and measures the lap time and the split time when the communication signal is received. The control unit 101 controls the wireless communication control unit 107 to transmit a communication signal including identification information and measurement time information to the communication device 20.

The time measuring unit 1011 includes an internal counter, measures the current time based on a reference signal input from the frequency dividing circuit 103, and holds pointer position information indicating the time measured in the internal counter.

The information processing unit 1012 stores the detection result output by the operation unit 104 in the storage unit 106. The detection result includes, for example, an instruction to start communication, the number of approaches described above, and the like. The setting of the number of approaches is transmitted from the communication device 20 to the watch 10 in a state where the communication device 20 and the watch 10 have established communication in advance. The number of approaches may be set on the communication device 20 side and extracted from the communication signal transmitted by the communication device 20. When the operation unit 104 outputs an instruction to start communication, the information processing unit 1012 outputs an instruction to start communication to the communication control unit 1013. The information processing unit 1012 extracts the identification information of the communication device 20 from the received communication signal output by the communication control unit 1013, and stores the extracted identification information of the communication device 20 in the storage unit 106. The information processing unit 1012 starts measurement when the communication signal is first received after the start of communication. The measurement may be started by the user manually operating the operation unit included in the timepiece 10. From the second time onward, the information processing unit 1012 measures the number of times the communication signal is received, the lap time and the split time when the communication signal is received, and generates transmission data including the measured measurement time information and the identification information of the own clock 10. , The generated data is output to the communication control unit 1013. When the information processing unit 1012 outputs information indicating that the communication control unit 1013 has detected the response signal, the information processing unit 1012 outputs a transmission stop instruction for stopping the transmission of the communication signal to the communication control unit 1013. The information processing unit 1012 receives the communication signal for the number of approaches, transmits the communication signal, ends the measurement of the lap time and the split time, and outputs a scan end instruction to end the scan to the communication control unit 1013. The information processing unit 1012 has described an example in which the lap time or split time measured when a communication signal is received from the communication device 20 is transmitted as measurement time information, but the present invention is not limited to this. The information processing unit 1012 may transmit one of the lap time and the split time. The information processing unit 1012 may transmit the time when the communication signal is received from the communication device 20 as the measurement time information. The information processing unit 1012 measures the lap time and the split time counted when the communication signal is received from the communication device 20 and stores them in the storage unit 106, resets the lap time, and restarts the counting of the lap time. As a result, the information processing unit 1012 measures the lap time for each lap of the track. The information processing unit 1012 reads out the lap time and the split time stored in the storage unit 106, controls the communication control unit 1013, and transmits the lap time and the split time. The information processing unit 1012 displays images such as the time measured, the split time, and the lap time on the display unit 105. The image displayed by the display unit 105 will be described later.

The communication control unit 1013 controls the wireless communication control unit 107 in response to the instruction to start the communication output by the information processing unit 1012, and starts the transmission and scanning operation of the communication signal (advertising packet). The communication control unit 1013 controls the wireless communication control unit 107 to detect and receive the communication signal transmitted by the communication device 20. The communication control unit 1013 may detect a communication signal from the communication device 20 when the strength of the received radio wave is equal to or higher than a predetermined threshold value. The communication control unit 1013 may detect the reception intensity by, for example, RSSI (Received Signal Strength Indicator). Here, the radio field intensity of the communication signal is, for example, about 0 to -100 dBm. The communication control unit 1013 controls the wireless communication control unit 107 to start transmitting a communication signal to the communication device 20. The communication control unit 1013 controls the wireless communication control unit 107 in response to the transmission stop instruction output by the information processing unit 1012, and ends the transmission of the communication signal. The communication control unit 1013 controls the wireless communication control unit 107 in response to the scan end instruction output by the information processing unit 1012 to end the scan.

The oscillation circuit 102 includes, for example, a crystal oscillator. A crystal oscillator is a passive element used to oscillate a first frequency from its mechanical resonance by utilizing the piezoelectric phenomenon of quartz. The oscillation frequency of the crystal oscillator is, for example, 32 kHz. The oscillation circuit 102 outputs the clock signal generated by oscillating the crystal oscillator to the frequency dividing circuit 103.
The frequency dividing circuit 103 divides the signal of the clock signal output by the oscillation circuit 102 to a desired frequency, and outputs the divided reference signal to the control unit 101. The frequencies of the reference signals are, for example, 64 Hz and 32 Hz.

The operation unit 104 is, for example, a crown or a push switch. The operation unit 104 detects the user's operation and outputs the detected operation result to the control unit 101. The detection result of the crown is the rotation angle of the crown and the like. The detection result of the push switch is an on state (pressed state), an off state (not pressed state), the number of times the push switch is pressed, and the like. Communication start is selected by operating the crown or push switch.

The display unit 105 is a device that displays information. As an example, the display unit 105 is composed of a 7-segment LED (light emitting diode), a liquid crystal display (LCD), and an organic EL (Electroluminescence) device. The display unit 105 displays the measured current time, the measured lap time, the split time, and the like according to the control of the control unit 101.

The storage unit 106 stores information and programs necessary for controlling the clock 10. The storage unit 106 stores the number of times the communication signal is received. The storage unit 106 stores the measured measurement time information. The storage unit 106 stores the identification information of the own clock 10.

The wireless communication control unit 107 transmits a communication signal to the communication device 20 via the antenna 108. The wireless communication control unit 107 receives the communication signal transmitted by the communication device 20 via the antenna 108, and outputs the received communication signal to the control unit 101. The wireless communication control unit 107 stores identification information unique to the watch 10. The identification information may be stored in the storage unit 106.

The antenna 108 converts the communication signal output by the wireless communication control unit 107 into radio waves, and transmits the converted radio waves to the communication device 20. The antenna 108 converts the received radio wave into an electric signal, and outputs the converted electric signal as a communication signal to the wireless communication control unit 107.

The sensor 109 is, for example, a heart rate sensor, an acceleration sensor, a gyro sensor, a temperature sensor, an alcohol sensor, a sensor for detecting a sleeping state, a sensor for detecting a person's state, and the like. The sensor 109 outputs the detected sensor detection result to the control unit 101.

The battery 110 is, for example, a button battery or a secondary battery. The battery 110 supplies the stored electric power to each part of the clock 10.

Next, the communication device 20 will be described.
As shown in FIG. 2, the communication device 20 is, for example, a tablet terminal, a smartphone, or the like, which has a communication function and a display screen. The communication device 20 may be a dedicated device. After the start of the competition, the communication device 20 transmits a communication signal including the identification information of the own device. The communication device 20 constantly scans radio waves and receives a communication signal transmitted by the clock 10. The communication device 20 extracts the identification information and the measurement time information of the clock 10 from the received communication signal, and stores the identification information in association with the measurement time information. When the communication device 20 receives the communication signal including the measurement time information from the clock 10, the communication device 20 transmits the response signal to the clock 10.

The control unit 201 starts an application that performs measurement according to the operation of the operation unit 202. The control unit 201 detects that the operation unit 202 is operated and the start of the competition is instructed when the application is running. When the control unit 201 detects that the start of the competition has been instructed, the control unit 201 controls the wireless communication control unit 207 to start transmitting and scanning a communication signal (advertising packet) including an identification signal of the own device. The control unit 201 controls the wireless communication control unit 207 to receive the communication signal transmitted by the clock 10. The control unit 201 extracts the identification information of the clock 10 and the measurement time information from the received communication signal, associates the measurement time information with the extracted identification information of the clock 10, and stores the storage unit 204 for each identification information of the clock 10. To memorize. When the control unit 201 receives the communication signal including the measurement time information from the clock 10, the control unit 201 controls the wireless communication control unit 207 to transmit the response signal to the clock 10. The response signal will be described later. The control unit 201 detects that the operation unit 202 has been operated and the end of the competition has been instructed. When the control unit 201 detects that the end of the competition has been instructed, the control unit 201 controls the wireless communication control unit 207 to end the transmission of the communication signal (advertising packet) and the scanning operation. Based on the sensor output of the sensor 205, the control unit 201 detects the posture of its own device, whether the screen is in the vertically long state or the screen is in the horizontally long state. The control unit 201 may change the image to be displayed on the display unit 203 according to the detected posture of the own device. The image displayed on the display unit 203 is a measurement result based on the received communication signal, that is, a lap time and a split time for each competitor. The image displayed by the display unit 203 will be described later. The number of approaches may be set on the communication device 20 side, and the communication signal may be transmitted to the clock 10 including the number of approaches. When the measurement time information included in the communication signal transmitted by the clock 10 is time, the control unit 201 calculates the lap time and split time using the received time information, and stores the calculated lap time and split time. It may be stored in 204. The control unit 201 may determine that the competition has started and start transmitting the communication signal when the competition start time set in advance by the operation of the operation unit 202 is reached. Further, the control unit 201 includes an internal counter, measures the current time based on the reference signal input from the frequency dividing circuit 210, and holds the pointer position information indicating the time measured in the internal counter.

The operation unit 202 detects the operation input from the user and outputs the detected operation result to the control unit 201. The operation unit 202 is, for example, a touch panel sensor provided on the display unit 203.

The display unit 203 is a device that displays information. The display unit 203 is configured by, for example, a liquid crystal display (LCD) and an organic EL (Electroluminescence) device. On the display unit 203, for example, an image of an application or the like is displayed according to the control of the control unit 201.

The storage unit 204 stores information, a program, an application for measuring a competition, and the like necessary for controlling the communication device 20. The storage unit 204 associates the identification information of the clock 10 with, for example, the name of an athlete, and stores the identification information for each identification information. The storage unit 204 associates the measurement time information with the identification information of the clock 10 and stores each identification information.

The sensor 205 is a gyro sensor that detects the posture of the communication device 20 (whether the screen is in the vertically long state or the screen is in the horizontally long state). The sensor 205 outputs the detected sensor detection result to the control unit 201.

The wireless communication control unit 207 transmits a communication signal to the clock 10 via the antenna 206. The wireless communication control unit 207 receives the communication signal transmitted by the clock 10 via the antenna 206, and outputs the received communication signal to the control unit 201.

The antenna 206 converts the communication signal output by the wireless communication control unit 207 into radio waves, and transmits the converted radio waves to the clock 10. The antenna 206 converts the received radio wave into an electric signal, and outputs the converted electric signal as a communication signal to the wireless communication control unit 207.

The battery 208 is, for example, a secondary battery. The battery 208 supplies the stored electric power to each part of the communication device 20.
The oscillation circuit 209 includes, for example, a crystal oscillator. A crystal oscillator is a passive element used to oscillate a first frequency from its mechanical resonance by utilizing the piezoelectric phenomenon of quartz. The oscillation frequency of the crystal oscillator is, for example, 32 kHz. The oscillation circuit 209 outputs a clock signal generated by oscillating the crystal oscillator to the frequency dividing circuit 210.
The frequency dividing circuit 210 divides the signal of the clock signal output by the oscillation circuit 209 to a desired frequency, and outputs the divided reference signal to the control unit 201. The frequencies of the reference signals are, for example, 64 Hz and 32 Hz.

Next, the information stored in the storage unit 204 of the communication device 20 will be described.
4 and 5 are diagrams showing an example of information stored in the storage unit 204 of the communication device 20 according to the present embodiment.
As shown in FIG. 4, the storage unit 204 stores the athlete's name in association with the identifier of the clock 10. As for the identifier of the clock 10, for example, the clock 10 transmits an advertising packet before the competition. Then, the control unit 201 of the communication device 20 controls the wireless communication control unit 207 to extract an identifier from the advertising packet transmitted by the clock 10, and stores the extracted identifier in the storage unit 204. For the athlete name, the measurer operates the operation unit 202 of the communication device 20 before the competition, selects a watch to be worn by the athlete, and inputs the athlete name. The control unit 201 associates the athlete name with the identifier and stores it in the storage unit 204 according to the result of the operation of the operation unit 202.

As shown in FIG. 5, the storage unit 204 stores the identifier of the clock 10 in association with the athlete name, the split time, and the lap time. The control unit 201 controls the wireless communication control unit 207 to extract the split time and the lap time from the advertising packet transmitted by the clock 10 each time the selection passes the goal point, and extracts the extracted split time and the lap time. It is stored in the storage unit 204. For example, the watch 10 worn by "Tanaka Taro" transmits a lap time "2:58" (2 minutes 58 seconds) and a split time "2:58" when passing in front of the first goal. The control unit 201 stores “2:58” in the split time, and sets the lap time No. It is stored in 1 at "2:58". Subsequently, the watch 10 worn by "Tanaka Taro" transmits "5:57" and a split time "2:59" at the lap time when passing in front of the second goal. The control unit 201 sets the split time. It is updated to "5:57" and stored in lap time No. 2 at "2:58".

Next, the operation of the clock 10 and the communication device 20 during the competition will be described with reference to FIGS. 6 to 8.
FIG. 6 is a diagram illustrating the operation of the clock 10 and the communication device 20 during the competition according to the present embodiment. As shown in FIG. 6, the watch 10 includes a case 11 and a belt.

FIG. 7 is a diagram showing an example of an intermittent operation in transmitting measurement time information according to the present embodiment. In the example shown in FIG. 7, the communication device 20 constantly transmits and scans advertising packets, and the clock 10 constantly scans. The transmission cycle of the advertisement packet is set as a cycle in which the transmission cycle from the clock 10 and the transmission cycle from the communication device 20 are different. Further, the scan cycle is set as a cycle in which the scan cycle of the clock 10 and the scan cycle of the communication device 20 are different. Both of these may be set as the same cycle. Further, the advertisement packet transmission cycle and the scan cycle are set as different cycles from each other. In addition, both may be set as the same cycle.

(Step S11) The control unit 101 of the clock 10 detects, for example, a radio wave from the communication device 20 when the radio wave intensity exceeds a threshold value. Subsequently, the control unit 101 measures the lap time and the split time when the radio wave is received, and transmits an advertising packet including ADVERTISING DATA (advertising data) of the measurement time information to the communication device 20.

(Step S12) When the control unit 201 of the communication device 20 can receive the advertising packet transmitted by the clock 10, the identification information and the measurement time information of the clock 10 are extracted from the received advertising packet. Here, the identification information of the clock 10 is an address unique to the wireless communication control unit 107 of the clock 10. Subsequently, the control unit 201 uses the extracted identification information as the transmission destination, and transmits an advertising packet including the identification information of the own device, which is the address of the communication device of the transmission destination and the transmission source, to the clock 10. The control unit 201 sets the PDU type of the advertising packet to SCAN REQUEST (response signal; incidental information transmission request) and transmits it as a response signal. Note that the control unit 201 may load incidental information as a scan request. The incidental information is information indicating that an advertisement packet has been received from the clock 10, for example, instruction information for requesting transmission of lap lime up to the 29th lap when the current 30th lap, and transmission of the sensor detection result detected by the sensor. Instruction information for requesting, instruction information for requesting retransmission of measurement time information, and the like.

(Step S13) The control unit 101 of the clock 10 receives the advertising packet set in the SCAN REQUEST transmitted by the communication device 20 as a response signal, and extracts the identification information of the communication device 20 and the PDU Type from the received advertising packet. .. Subsequently, the control unit 101 determines that the SCAN REQUEST includes the source and destination addresses, and therefore is requested by the communication device 20, that is, the communication device 20 has received the measurement time information. Subsequently, the control unit 101 sets the PDU type of the advertising packet to SCAN RESPONSE DATA (scan response data) and transmits the advertisement packet, and stops the transmission of the advertisement packet after the transmission.

When the control unit 101 can detect the radio wave from the communication device 20 when the radio wave strength exceeds the threshold value, the control unit 101 returns to the process of step S11 and restarts the transmission of the advertisement packet. Such an operation is referred to as an intermittent operation in the embodiment.

Further, when the communication device 20 transmits the incidental information as the SCAN REQUEST, the control unit 101 of the clock 10 transmits the information including the information requested to the SCAN RESPONSE DATA. The control unit 201 of the communication device 20 extracts information from the received communication signal. Using the value of the received information detected by the acceleration sensor, the control unit 201 may calculate the number of steps using the lap time and the acceleration, and calculate the pitch, stride (step length), etc. from the calculated number of steps. .. Then, the control unit 201 may store the calculated value in the storage unit 204 and display it on the display unit 203. The number of steps, pitch, and stride may be calculated by the control unit 101 of the clock 10. In this case, the incidental information may be instructional information requesting transmission of the number of steps, pitch, and stride.

FIG. 8 is a sequence diagram of the clock 10 and the communication device 20 in the intermittent operation according to the present embodiment.
(Step S21) The control unit 201 of the communication device 20 starts transmitting an advertising packet after the start of the competition. After that, the control unit 201 constantly transmits and scans the advertising packet.

(Step S22) The control unit 101 of the clock 10 detects and receives radio waves from the communication device 20.
(Step S23) The control unit 101 of the clock 10 starts measurement. Subsequently, the control unit 101 transmits an advertising packet which is ADVERTISING DATA including the measurement time information.

(Step S24) The control unit 201 of the communication device 20 detects the radio wave transmitted by the clock 10 and receives the advertising packet.
(Step S25) When the identification information and the measurement time information of the clock 10 can be extracted from the received advertising packet, the control unit 201 of the communication device 20 transmits an advertising packet in which the PDU type is set to SCAN REQUEST.

(Step S26) The control unit 101 of the clock 10 receives the advertising packet set in the SCAN REQUEST transmitted by the communication device 20.
(Step S27) When the PDU type of the received advertising packet is SCAN REQUEST, the control unit 101 of the clock 10 extracts incidental information included in SCAN REQUEST. Subsequently, the control unit 101 transmits information according to the incidental information as an advertising packet in which the PDU type is set to SCAN RESPONSE DATA.

(Step S28) The control unit 201 of the communication device 20 receives the SCAN RESPONSE DATA transmitted by the clock 10. The control unit 201 extracts the incidental information and the identification information from the received SCAN RESPONSE DATA, associates the identification information with the incidental information, and stores the incidental information in the storage unit 204.

(Step S29) The control unit 101 of the clock 10 stops the transmission of the advertisement packet after transmitting the advertising packet in which the PDU type is set to SCAN RESPONSE DATA.

(Step S30) The control unit 101 of the clock 10 stops scanning for a predetermined time. Alternatively, even if the control unit 101 receives the advertising packet after transmitting the SCAN RESPONSE DATA, if the identification information is the communication device 20, the control unit 101 does not perform the measurement and the transmission of the advertisement packet for a predetermined time. The reason for the processing in step S28 is to prevent the processing in step S22 from being performed by detecting the advertising packet after transmitting the measurement time information when the competitor passes the goal point.

(Step S31) The control unit 201 of the communication device 20 transmits an advertising packet.
(Step S32) The control unit 101 of the clock 10 restarts the scan after a predetermined time (mask period). The mask period will be described later.

After that, the control unit 101 of the clock 10 and the control unit 201 of the communication device 20 repeat the processes of steps S21 to S32 every time the clock 10 equipped with the clock 10 passes the goal point. That is, the clock 10 measures when a radio wave from the communication device 20 is detected at the goal point, transmits the measurement time information by including it in the advertisement packet, transmits the measurement time information, and then receives the response signal from the communication device 20 to advertise the packet. Stop sending. In this way, the clock 10 transmits the advertisement packet when the measurement and the measurement result are transmitted at the goal point, and the transmission is stopped for a period other than the goal point. Then, when the clock 10 goes around and the radio wave is detected again at the goal point, the clock 10 resumes the transmission of the advertisement packet.
Then, the control unit 101 of the clock 10 ends the measurement when it passes in front of the goal a set number of times. The control unit 201 of the communication device 20 ends the transmission and scanning of the advertising packet when the measurer operates the operation unit 202 to set the end of the competition.

Here, consider the case where a plurality of competitors are running on the track at the same time. When a plurality of competitors pass through the goal point at almost the same time, if each of the clocks 10 worn by the plurality of competitors constantly transmits an advertisement packet, the clocks 10 of the competitors may interfere with each other. is there.

On the other hand, the clock 10 and the communication device 20 of the present embodiment transmit the communication signal (advertising packet) including information other than the identification information to each other, and do not perform the communication establishment (pairing) process. As a result, the clock 10 transmits the advertising packet including the measurement time information only when it is necessary to transmit the measurement time information without maintaining the communication with the communication device 20.

As a result, according to the present embodiment, when a plurality of competitors are running on the same track, the plurality of clocks 10 or each transmit a communication signal only near the goal point, and thus the plurality of clocks. Interference between 10 can be avoided. Further, according to the present embodiment, the watch 10 worn by the athlete only when necessary for the measurement transmits the advertisement packet, which saves power.

Further, by the processing of step S30 and step S32, the control unit 101 measures the time and transmits the measured time information even when the advertising packet is transmitted at the passing goal point after the transmission of the SCAN RESPONSE DATA. Therefore, interference between the clocks 10 can be reduced. Further, by the processing of steps S29 and S31, the control unit 101 measures the time and transmits the measured time information even when the advertising packet is transmitted at the passing goal point after the transmission of the SCAN RESPONSE DATA. Therefore, the power consumption of the watch 10 can be reduced.

In the above-mentioned example, the example in which the measurement time information is transmitted each time the clock 10 passes the goal point has been described, but the present invention is not limited to this. The control unit 101 of the clock 10 measures each time it passes the goal point, and stores the measured measurement time information in the storage unit 106. Then, after the set number of measurement times is completed, the control unit 101 may read all the measurement time information from the storage unit 106 and collectively transmit all the read measurement time information to the communication device 20.

Next, the transmission of the communication signal of the communication device 20 and the reception of the communication signal of the clock 10 will be described.
FIG. 9 is a diagram showing a state in which the clock 10 is receiving the communication signal transmitted by the communication device 20 according to the present embodiment.
As shown in FIG. 9, after the start of the competition, the communication device 20 constantly transmits a communication signal (advertising packet) including the identification signal of the own device.
After the start of communication, the clock 10 constantly scans, detects and receives a communication signal (advertising packet) from the communication device 20. The clock 10 measures the lap time and the split time when the communication signal transmitted by the communication device 20 can be detected.

FIG. 10 is a diagram showing an example of the strength of the communication signal transmitted by the communication device 20 and the radio wave received by the clock 10 according to the present embodiment. In FIG. 10, the horizontal axis represents the time, the position, and the number of approaches, and the vertical axis represents the signal strength. The waveform g1 is a communication signal transmitted by the communication device 20. The waveform g2 is a radio wave of a communication signal received by the clock 10.

Like the waveform g1, the communication device 20 transmits a communication signal (advertising packet) at predetermined times (t1, t2, t3, t4, ...) After the start of the competition.
The clock 10 constantly scans and receives radio waves from the communication device 20. The communication control unit 1013 of the clock 10 determines that the communication signal cannot be received at the times t1, t2, and t7 when the reception strength of the radio wave is less than the threshold value, and the reception strength of the radio wave is equal to or higher than the threshold value. At the time t3, t5, t6, and t9, it is determined that the communication signal can be received. This state represents a state in which the clock 10 is approaching the communication device 20. In this way, FIG. 10 represents the change in the approaching state between the clock 10 and the communication device 20 according to the movement stroke of the clock 10.

In the present embodiment, as described with reference to FIG. 1, the communication device 20 is installed at the goal point (position P0), and the athlete wears the clock 10 and runs on the track. Therefore, the clock 10 gradually approaches the communication device 20, and the reception intensity of the received radio wave becomes stronger accordingly. In the example shown in FIG. 7, the radio wave intensity received at the position −P1 exceeds the threshold value, and the radio wave intensity received at the position P0 becomes the maximum value. Further, after passing in front of the goal, the received radio wave intensity decreases and falls below the threshold value at the position P2. In the present embodiment, the clock 10 keeps time when the received radio wave intensity becomes equal to or higher than the threshold value. In the example shown in FIG. 10, the clock 10 measures the time when the number of approaches is the first time (Nth time / N is an integer, and the same applies thereafter) at time t3 (position-P1), and at time t9 (position-P1). Time is performed when the number of approaches is the second (N + 1). Then, as will be described later, the clock 10 receives the communication signal from the communication device 20 so as not to perform the time counting a plurality of times during the period when the received radio wave intensity is equal to or higher than the threshold value (for example, time t3 to t6). A mask period TM (time t4 to t8) is provided from the time when the received radio wave intensity exceeds the threshold value to the time when it falls below the threshold value. The mask period TM may be a predetermined predetermined time, or may be a time including a time when the threshold value is reached after the threshold value is exceeded. The interval at which the communication device 20 transmits a communication signal is, for example, several hundred msec. In addition, athletes such as marathons run at, for example, about 1 km / 3 minutes. The speed in this case is about 0.5 m / 100 msec. Although the position P is schematically shown in FIG. 1 for the sake of explanation, when the transmission interval of the communication signal is 100 msec, the interval between the positions where the clock 10 approaches the communication device 20 is about 0.5 m. Since the distance between the positions is short and the measurement can be performed at the same position for each number of approaches, there is no problem even if the measurement is performed for each number of approaches at position −P1 instead of position P0. Further, even if the clock 10 cannot receive the radio wave from the communication device 20 at the position P-1, it can be received and measured at the next position P0, so that there is no problem in the measurement. As described above, in the present embodiment, when the reception intensity of the radio wave received during the mask period other than TM is equal to or higher than the threshold value, the clock 10 determines that the radio wave can be received and measures the measurement time information. A communication signal (advertising packet) including the above is transmitted to the communication device 20.

Further, in the present embodiment, the radio wave intensity is the maximum value until the time t7 (position P2) when the radio wave intensity received at time t3 (position −P1) exceeds the threshold value and the radio wave intensity falls below the threshold value. At the time t5 (point P0), the clock 10 can measure the time. In this case, although not shown, when there are a plurality of peaks (maximum values) in which the radio wave intensity is equal to or higher than the threshold value, the clock 10 clocks the largest peak.
Further, the clock 10 sets an intermediate time point in the period from the time t3 (position-P1) when the received radio wave intensity exceeds the threshold value to the time t7 (position P2) when the radio wave sensitivity falls below the threshold value. Can be the time point for timekeeping. In this case, the time measured by the clock 10 can be easily calculated from the time exceeding the threshold value and the time falling below the threshold value.
It is naturally possible that the threshold value when the received radio wave intensity exceeds the threshold value and the threshold value when the radio wave intensity falls below the threshold value are different values. In this case, the measurement time according to the actual situation can be effectively calculated.

The control unit 101 of the clock 10 receives the communication signal from the communication device 20, and extracts the identification information of the communication device 20 from the received communication signal. Then, the control unit 101 measures the time when the communication signal from the communication device 20 is received, and then mask processing that does not perform the measurement even when the communication signal including the same identification information is received again within the predetermined time. It can be performed. The clock 10 can preset a period during which this measurement is not performed as a mask period. The reason for this mask processing is to prevent the re-measurement and the re-transmission of the measurement time information from being performed by detecting the advertising packet again immediately after the transmission of the measurement time information when the competitor passes the goal point. ..

Further, the mask period can be set not only as a predetermined time but also by a predetermined condition. This predetermined condition can be, for example, a condition in which the reception strength of the communication signal falls below the threshold value after the clock 10 receives the communication signal from the communication device 20. In this case, the mask period is a period from the time when the clock 10 receives the communication signal from the communication device 20 to the time when the reception strength of the communication signal falls below the threshold value.
If the mask process is not executed, the number of times the clock 10 and the communication device 20 communicate with each other may be larger than the number of times they approach each other. It is conceivable that if the player cannot completely pass the vicinity of the goal, the communication exceeding the threshold strength may be repeated unnecessarily. Therefore, such an event can be prevented by executing the mask processing. In this case, the number of times the clock 10 and the communication device 20 approach each other is equal to the number of times of communication. As a result, it is possible to realize a measurement process that can efficiently detect the number of approaches while eliminating the need for extra communication.

Further, it is assumed that the clock 10 measures the time point at which the reception intensity reaches the maximum value until the reception intensity exceeds the threshold value and the reception intensity falls below the threshold value without setting the mask period. Also, it is possible to realize a measurement process that can efficiently detect the number of approaches.
Further, by not setting the mask period and assuming that the clock 10 measures the intermediate time point from the time when the reception intensity exceeds the threshold value to the time when the reception intensity falls below the threshold value. It is possible to realize a measurement process that can efficiently detect the number of approaches.
It should be noted that the threshold value when the reception intensity exceeds the threshold value and the threshold value when the reception intensity falls below the threshold value can be set to different values to be efficient. It is possible to realize a measurement process that can detect the number of approaches.

FIG. 11 is a diagram showing an example of a current waveform when the communication device 20 according to the present embodiment transmits a transmission signal and the clock 10 receives the transmission signal.
In FIG. 11, the horizontal axis is time. The waveform g11 is a current waveform that flows through the communication device 20 during communication. The waveform g12 is a current waveform that flows through the clock 10 during communication. Further, the period T1 is an advertisement interval (Advertise Interval). The period T2 is the scan interval (Scan Interval). The period T3 is a scan window. Further, the reference numeral Rx represents reception. The period T3 is the second reception period.

The communication device 20 transmits an advertising packet at times t12, t16, and t22. As a result, as shown in the waveform g11, a current flows through the communication device 20 during the period of time t12 to t13, t17 to t18, and t22 to t23.
As shown in the waveform g12, a current flows through the clock 10 during the scan window period T3 (time t11 to t14, t15 to t16, t19 to t20, t21 to t24). Further, when the clock 10 can detect the radio wave during the period T3, the clock 10 receives the advertising packet transmitted by the communication device 20. In the example shown in FIG. 11, the clock 10 receives the time t11 to t14 and the time t21 to t24, and does not receive the time t15 to t16 and the time t19 to t20. Further, although the advertising packet is transmitted during the period from time t17 to t18, the clock 10 does not receive it because it is outside the period T3.

Next, an example in which the communication device 20 receives the measurement time data transmitted by the clock 10 will be described.
FIG. 12 is a diagram illustrating an example in which the communication device 20 receives the measurement time data transmitted by the clock 10 according to the present embodiment.

When the clock 10 receives the advertising packet from the communication device 20, it measures the lap time and the split time, and transmits the advertising packet including the measured measurement time information and the identification information of the own clock 10 to the communication device 20.

The communication device 20 constantly scans and detects an advertising packet from the clock 10. The communication device 20 may detect the radio wave based on the radio wave strength as in the timepiece 10. The communication device 20 extracts the identification information and the measurement time information of the clock 10 from the received advertising packet, and stores the extracted measurement time information in the storage unit 204 in association with the identification information.
The communication device 20 identifies a plurality of clocks 10 by using the identification information of the clocks 10 extracted from the received advertising packet. The communication device 20 causes the display unit 203 to display the measurement result based on the information stored in the storage unit 204. The example shown in FIG. 12 is an example in which measurement time information is received from three clocks 10 (first clock 10-1, second clock 10-2, third clock 10-3). On the display unit 203, the measurement time information d1 of the first clock 10-1, the measurement time information d2 of the second clock 10-2, and the measurement time information d3 of the third clock 10-3 are displayed. ..

FIG. 13 is a diagram showing an example of a current waveform when the communication device 20 receives the measurement time data transmitted by the clock 10 according to the present embodiment. In FIG. 13, the horizontal axis is time. The waveform g21 is a current waveform that flows through the communication device 20 during communication. The waveform g22 is a current waveform that flows through the clock 10 during communication.

As shown in the waveform g21, the communication device 20 causes a current to flow during the scan window period (time t31 to t34, t37 to t40).
As shown in the waveform g22, a current flows through the clock 10 during the period (time t32 to t33, t35 to t36, t38 to t39) during which the advertising packet is transmitted.
The communication device 20 receives the advertising packet when the radio wave from the clock 10 can be detected during the scan window period. In the example shown in FIG. 13, the communication device 20 receives at times t32 to t33 and times t38 to t39, but does not receive at times t35 to t36.
The period during which the scanning operation is performed (time t31 to t34, t37 to t40) is the first reception period.

Next, an example of an image displayed on the display unit 203 of the communication device 20 will be described.
FIG. 14 is a diagram showing an example of an image displayed on the display unit 203 of the communication device 20 according to the present embodiment.
In the example shown in FIG. 14, it is an example of listing and displaying each competitor. The image of the area indicated by the reference numeral d11 is the measurement time information of the athlete name “Tanaka Taro”. The image of the area indicated by the reference numeral d12 is the measurement time information of the athlete name “Yamada Ichiro”. The image of the region indicated by the reference numeral d13 is the measurement time information of the athlete name “Hiroki Sato”.

In the example shown in FIG. 14, the latest lap time (LAP) and split time (SPLIT) when the athlete wearing the watch 10 last passed the goal point where the communication device 20 is installed are displayed. ing. For example, the 36th (No. 36) lap time of the athlete name "Tanaka Taro" is 2:59 (2 minutes 59 seconds), and the split time is 1: 47: 59 (1 hour 47 minutes 59 seconds). ..
The control unit 201 of the communication device 20 may sort and display, for example, the order of early or late split time, the order of names (for example, the order of AIUEO, the order of ABC), and the like. In this case, the control unit 201 may cause the display unit 203 to display the image d14 of the button for instructing sorting.

Further, when the measurer detects that the area indicated by the reference numeral d11 is tapped and selected, the control unit 201 lists and displays the measurement time information of the individual athlete as shown in FIG.
FIG. 15 is a diagram showing an example of an image of measurement time information of an individual athlete displayed on the display unit 203 of the communication device 20 according to the present embodiment.
In the example shown in FIG. 15, the control unit 201 displays the images in the order of acquisition. The image of the area indicated by the reference numeral d21 is the athlete name "Tanaka Taro" and the item "LAP (lap time) SPLIT (split time)". The image of the region indicated by the reference numeral d22 is the first lap time “No. 01” and the split time. The image of the region indicated by the reference numeral d23 is the second lap time “No. 02” and the split time. The image of the region indicated by the reference numeral d24 is the third lap time “No. 03” and the split time. The image of the region indicated by the reference numeral d25 is the fourth lap time “No. 04” and the split time. The image of the region indicated by the reference numeral d26 is the fifth lap time “No. 05” and the split time. The image of the region indicated by the reference numeral d27 is an image of a button for instructing sorting.

In addition, either descending order or ascending order may be used, and when the button for instructing sorting is pressed, the sorting may be re-sorted and displayed.
Further, when the distance for one lap (one lap) is input in advance by the measurer, the control unit 201 may calculate the speed of the competitor and display the calculated speed for each lap. Good.
Further, when it is detected that the area of reference numeral d21 is tapped and selected, the control unit 201 may shift from the display state of the image shown in FIG. 15 to the display state shown in FIG.
When the number of lap times is too large to display on one screen, the control unit 201 scrolls the screen to display by detecting that the operation unit 202 has slid a finger in the vertical direction on the display unit 203. You may do so.

Further, the control unit 201 determines whether the screen state of the communication device 20 has changed from the vertically long state (FIGS. 14 and 15) to the horizontally long state (FIG. 16) based on the sensor detection result detected by the sensor 205. It may be detected and the display screen may be switched according to the detection result.
FIG. 16 is a diagram showing an example of an image displayed when the display unit 203 of the communication device 20 according to the present embodiment is in a horizontally long state. The example shown in FIG. 16 is an example of the image d31 displayed when the communication device 20 is in a horizontally long state while the image of FIG. 15 is displayed.
When the control unit 201 detects that the communication device 20 is in a horizontally long state, it generates an image obtained by graphing the data shown in FIG. 15 and displays the generated image on the display unit 203. In FIG. 16, the horizontal axis is the number of lap time measurements and the vertical axis is the lap time.
The control unit 201 may shift to the display shown in FIG. 15 when the horizontally elongated state shown in FIG. 16 is returned to the vertically elongated state.

Next, an example of an image displayed on the display unit 105 of the clock 10 will be described.
FIG. 17 is a diagram showing an example of an image of measurement time information displayed on the display unit 105 of the clock 10 according to the present embodiment.
In FIG. 17, the image of the region indicated by the reference numeral d41 is an image of the measurement result of the split time (SPLIT). The image of the region indicated by the reference numeral d42 is an image of the measurement result of the lap time (LAP). In the example shown in FIG. 17, the lap time of the 36th time (No. 36) is "0:02:58" (2 minutes 58 seconds), and the split time is "1: 47: 58" (1 hour 47 minutes 58 seconds). ) Is an example.

FIG. 18 is a diagram showing another example of an image of measurement time information displayed on the display unit 105 of the clock 10 according to the present embodiment. The example shown in FIG. 18 is an example in which the displayable resolution of the display unit 105 is higher than the example shown in FIG.
In such a case, the control unit 101 may display a plurality of measured lap times and a plurality of split times as in the image of the region indicated by the reference numeral d51. The example shown in FIG. 18 is an example in which each of the latest four lap times and split times is displayed.

Further, the control unit 101 may switch the image of the region indicated by the reference numeral d51 to the image of the region indicated by the reference numeral d52 and display the image according to the operation result of the operation of the operation unit 104. In such a case, the control unit 101 stores, for example, the latest four lap times and split times that can be displayed on the display unit 105 in the storage unit 106, and graphs the stored information to generate an image. You may do so. Alternatively, the control unit 101 may store all the competition data in the storage unit 106, and read out each of the latest four lap times and split times from the storage unit 106 and display them.

In the above-mentioned example, an example in which the clock 10 and the communication device 20 are used for measuring the time in a competition in which a competitor runs a track has been described, but the present invention is not limited to this. The clock 10 and the communication device 20 may be applied to, for example, a system for managing attendance. In such a communication measurement system, when an employee wearing the clock 10 receives an advertisement from the communication device 20 which is a time card device, the time is measured and the time information is transmitted to the communication device 20. Then, the communication device 20 stores the identification information of the clock 10 in advance in the storage unit 204 in association with the employee number, the name, and the like. Then, the communication device 20 manages the attendance time and the leaving time by storing the received time information in association with the employee number and the name. Even in this case, the clock 10 stops the transmission of the advertisement packet after receiving the response signal from the communication device 20. As a result, since the clock 10 of the embodiment communicates only when passing in front of the communication device 20 which is a time card device, interference between the clocks 10 worn by each of the plurality of employees can be reduced and power consumption can be reduced. It can be carried out. The clock 10 may be a dedicated communication device including the components shown in FIG.

As described above, in the present embodiment, the clock 10 measures the lap time and the split time using the time when the communication signal transmitted by the communication device 20 is received as the trigger of the approaching state, and the measurement result is the communication device in the advertisement packet. I tried to send to 20. Then, after the measurement time data is transmitted, the advertisement packet of the clock 10 is not transmitted. As a result, according to the present embodiment, since the clock 10 worn by the athlete is transmitted only when necessary, interference between the clocks 10 on the athlete side can be reduced. Further, according to the present embodiment, the clock 10 transmits the advertisement packet only when necessary, which saves power.

Further, according to the present embodiment, the trigger signal is determined from the increase / decrease in the received signal strength of the short-range wireless communication used for transmitting / receiving the measurement time information as compared with the mat having the antenna in the conventional marathon competition. The number of antennas for channel identification can be reduced. Further, according to the present embodiment, a large-scale device is not required.
Further, according to the present embodiment, the system can be easily constructed by realizing the trigger point by the program of the communication device 20 such as the tablet terminal.
Further, according to the present embodiment, the watch 10 worn by the athlete may be a general-purpose device such as a smartphone or a smart watch, and by realizing the watch 10 with a program installed in the general-purpose device, a dedicated terminal is not required.

In the above-mentioned example, an example in which the clock 10 and the communication device 20 perform intermittent operations has been described, but the present invention is not limited to this. When interference does not occur or the influence of interference is small, the clock 10 may always transmit an advertisement packet including measurement time information. In addition, when interference does not occur or the influence of interference is small, for example, when there is one player or a small number of players (for example, two or three people), the start time of the players is different and the passing time of the goal point is different. Is different, etc.

The difference from the processing of each part described above will be described with reference to FIG.
First, the clock 10 will be described.
The clock 10 constantly transmits and scans a communication signal (advertisement packet) in response to an instruction to start communication. Then, when the clock 10 receives the communication signal for the number of approaches, the clock 10 ends the measurement, the transmission of the communication signal (advertisement packet), and the scan. Further, since the communication device 20 does not transmit the SCAN REQUEST, the clock 10 does not transmit the SCAN RESPONSE DATA which is a response to the SCAN REQUEST.

Next, the communication device 20 will be described.
When the communication device 20 receives the advertising packet including the ADVERTISING DATA (advertising data), the communication device 20 does not transmit the SCAN REQUEST.

Next, the operation when the clock 10 constantly transmits the advertisement packet during the competition will be described with reference to FIG.
FIG. 19 is a diagram showing an example of current waveforms of the clock 10 and the communication device 20 when the clock 10 constantly transmits an advertisement packet during the competition according to the present embodiment. In FIG. 19, the horizontal axis is time. The waveform g30 is a current waveform flowing through the communication device 20. The waveform g31 is a current waveform that flows through the communication device 20 at the time of transmission. The waveform g32 is a current waveform that flows through the communication device 20 at the time of reception. The waveform g40 is a current waveform flowing through the clock 10. The waveform g41 is a current waveform that flows through the clock 10 at the time of reception. The waveform g42 is a current waveform that flows through the clock 10 at the time of transmission.

As shown in the waveform g31, the communication device 20 transmits an advertising packet at times t52 to t53, t61 to t63, and t72 to t73.
As shown in the waveform g32, the communication device 20 receives the advertising packet when the radio wave can be detected at the times t54 to t59 and t66 to t69.

As shown in the waveform g41, the clock 10 receives an advertising packet when radio waves can be detected at times t51 to t55, t58 to t60, t65 to t67, and t71 to t74.
As shown in the waveform g42, the clock 10 transmits advertising packets at times t56 to t57, t62 to t64, t68 to t69, and t75 to t76.

As shown in FIG. 19, each of the clock 10 and the communication device 20 constantly transmits and scans advertisement packets.
Specifically, as shown in FIG. 19, each of the clock 10 and the communication device 20 alternately transmits and scans advertisement packets at a predetermined cycle, for example.
When the clock 10 can receive the advertising packet from the communication device 20 during scanning (time t51 to t55, t71 to t74), the clock 10 measures and measures at the next transmission timing (time t56 to t57, t75 to t76). Send time information.
When the communication device 20 can receive the advertising packet from the communication device 20 during scanning (time t54 to t59, t66 to t70), the communication device 20 receives the measurement time information transmitted by the clock 10.
As described above, in the present embodiment, the clock 10 and the communication device 20 each transmit the advertisement packet without establishing the communication, and receive the advertisement packet when it can be received.

According to the embodiment described with reference to FIG. 19, the trigger signal is determined from the increase / decrease in the received signal strength of the short-range wireless communication used for transmitting / receiving the measurement time information as compared with the mat having an antenna in the conventional marathon competition. By doing so, the number of antennas for channel identification can be reduced. Further, according to the present embodiment, a large-scale device is not required.
Further, according to the embodiment described with reference to FIG. 19, the system can be easily constructed by realizing the trigger point by the program of the communication device 20 such as a tablet terminal.
Further, according to the embodiment described with reference to FIG. 19, the watch 10 worn by the athlete may be a general-purpose device such as a smartphone or a smart watch, and is realized by a program installed in the general-purpose device to be a dedicated terminal. Is no longer needed.

If a connection is established and communication is performed, the communication may be disconnected if the clock 10 and the communication device 20 are separated from each other for a long distance during running. When the communication is disconnected in this way, it takes time to reconnect, so that the lap time is missed. Therefore, in the present embodiment, in order to eliminate such omission of lap time and the like, bidirectional communication is performed only by transmitting and scanning the advertisement packet. As a result, according to the present embodiment, the number of simultaneous connections is not limited.

Also in this embodiment, the mask period described with reference to FIG. 10 is provided. The control unit 101 of the clock 10 receives the communication signal from the communication device 20, and extracts the identification information of the communication device 20 from the received communication signal. Then, the control unit 101 measures the time when the communication signal from the communication device 20 is received, and then measures the mask period even when the communication signal including the same identification information is received again within the predetermined time. Absent. The reason for this processing is to prevent the processing of the measurement and the transmission of the measurement time information from being performed by detecting the advertising packet again immediately after the transmission of the measurement time information when the competitor passes the goal point.

In the above-mentioned example, an example in which the clock 10 and the communication device 20 each constantly transmit and scan advertising packets has been described, but the present invention is not limited to this. After transmitting the measurement time information, the clock 10 may stop the transmission of the advertising packet until the next advertisement packet is received from the communication device 20.

In the above-mentioned example, an example of using BLE communication as an example of proximity radio has been described, but the present invention is not limited to this. It may be another proximity radio capable of transmitting a communication signal by each of the watch 10 and the communication device 20 without establishing communication between the watch 10 and the communication device 20.

In the above-mentioned example, an example in which the watch 10 and the communication device 20 do not establish communication (do not pair) has been described, but the present invention is not limited to this. For example, if the track is small, or if the radio wave strength transmitted by the watch 10 and the communication device 20 is strong, or if the disconnection is not cut during the competition after the communication is established, the watch 10 and the communication device 20 are connected. Communication may be established.

Further, in the above-described example, an example in which the control unit 101 of the clock 10 transmits the measured lap time, split time, and the like as measurement time information has been described, but the present invention is not limited to this. The control unit 101 may transmit as the measurement time information a predetermined time, for example, a time that cannot occur as a lap time or a split time, such as 0 or 100 hours. In this case, the control unit 101 of the communication device 20 measures and measures the time when the communication signal is received from the clock 10 or when it is detected when the reception strength of the communication signal is equal to or higher than a predetermined threshold value. The time may be stored in the storage unit 204. The control unit 201 may calculate the lap time and split time for each clock 10 using the stored time, and store the calculated lap time and split time for each clock 10 in the storage unit 204. The communication device 20 may include a communication circuit (not shown), and the communication circuit may acquire time information from a base station such as a mobile phone communication network.

Alternatively, the control unit 201 of the communication device 20 may measure the lap time or the split time by measuring the time when the communication signal transmitted by the clock 10 is detected. In this case, the clock 10 corresponds to the first communication device, and the communication device 20 corresponds to the second communication device.

Further, in the above-described example, an example in which the scan is interrupted in steps S30 and S32 has been described, but the present invention is not limited to this, and steps S30 and S32 can be omitted.
Further, the control unit 101 of the clock 10 may also transmit information based on the sensor detection value detected by the sensor 109. For example, the control unit 101 may acquire the pulse rate detected by the sensor 109 and transmit it as an advertisement packet together with the measured measurement time information. In this way, when the communication signal includes a pulse rate or the like, the control unit 201 of the communication device 20 extracts the pulse rate and displays it on the display unit 203 together with the measured value for each player in FIG. 14, for example. It may be displayed.

In the above-mentioned example, an example applied to a competition in which a competitor goes around a track has been described, but the present invention is not limited to this. For example, as in a marathon, there may be a plurality of measurement points, and a communication device 20 may be installed at each measurement point. In such a case, the plurality of communication devices 20 installed at the measurement points may share the number of approaches and measurement data with each other using, for example, a communication line.
In the above example, the state in which the reception intensity exceeds the threshold value does not exclude the state in which the reception intensity exceeds the threshold value, and the state in which the reception intensity falls below the threshold value is defined as the threshold value or less. It does not exclude the state of becoming. Further, a state in which the reception intensity is equal to or higher than the threshold value does not exclude a state in which the reception strength exceeds the threshold value, and a state in which the reception strength is lower than the threshold value does not exclude a state in which the reception strength is lower than the threshold value. It is a thing.

A program for realizing a part or all of the functions of the control unit 101 of the clock 10 and the control unit 201 of the communication device 20 in the present invention is recorded on a computer-readable recording medium and recorded on the recording medium. The program may be read into a computer system and executed to perform processing performed by the control unit 101 of the clock 10 and the control unit 201 of the communication device 20. The term "computer system" as used herein includes hardware such as an OS and peripheral devices. Further, the "computer system" shall also include a WWW system provided with a homepage providing environment (or display environment). Further, the "computer-readable recording medium" refers to a portable medium such as a flexible disk, a magneto-optical disk, a ROM, or a CD-ROM, or a storage device such as a hard disk built in a computer system. Furthermore, a "computer-readable recording medium" is a volatile memory (RAM) inside a computer system that serves as a server or client when a program is transmitted via a network such as the Internet or a communication line such as a telephone line. In addition, it shall include those that hold the program for a certain period of time.

Further, the program may be transmitted from a computer system in which this program is stored in a storage device or the like to another computer system via a transmission medium or by a transmission wave in the transmission medium. Here, the "transmission medium" for transmitting a program refers to a medium having a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line. Further, the above program may be for realizing a part of the above-mentioned functions. Further, it may be a so-called difference file (difference program) that can realize the above-mentioned function in combination with a program already recorded in the computer system.

1 ... Measurement system, 10 ... Clock, 20 ... Communication equipment, 101 ... Control unit, 102 ... Oscillation circuit, 103 ... Frequency division circuit, 104 ... Operation unit, 105 ... Display unit, 106 ... Storage unit, 107 ... Wireless communication control Unit, 108 ... Antenna, 109 ... Sensor, 110 ... Battery, 1011 ... Measuring unit, 1012 ... Information processing unit, 1013 ... Communication control unit, 201 ... Control unit, 202 ... Operation unit, 203 ... Display unit, 204 ... Storage unit , 205 ... sensor, 206 ... antenna, 207 ... wireless communication control unit, 208 ... battery, 209 ... oscillation circuit, 210 ... frequency division circuit

Claims (11)

In a communication measurement system including a first communication device and a second communication device that communicates with the first communication device.
It said first communication equipment includes
A first reception period is provided for transmitting the first transmission radio wave including the identification information for identifying the first communication device and receiving the second transmission radio wave including the identification information for identifying the second communication device, and the second transmission. The first communication unit that receives radio waves and
A first control unit that controls the transmission of the first transmission radio wave is provided.
The second communication device is
A second communication unit that transmits the second transmission radio wave, provides a second reception period for receiving the first transmission radio wave, and receives the first transmission radio wave, and
A second control unit that controls the transmission of the second transmission radio wave, and
A memory that stores as a measurement time the time that the second control unit determines that the second communication device is in a state of approaching the first communication device according to the first transmission radio wave received in the second reception period. With a department,
The second the Communication section,
The measured time stored in the storage unit is used as the second transmission radio wave and transmitted to the first communication device at each transmission interval.
The second control section is,
If it is determined that it has received the response radio wave to said first transmit radio waves, and controls the second communication unit so as not to send the next second transmission radio wave has passed the transmission interval,
Communication measurement system. The response radio wave is
The communication measurement system according to claim 1, further comprising an incidental information transmission request requesting the first communication apparatus to transmit incidental information to the second communication apparatus. The second communication device is
It is provided with at least one of a sensor that detects a state related to the environment in which the second communication device is used and a sensor that detects a state related to a user who uses the second communication device.
The incidental information is
At least one of the information requesting the retransmission of the first transmitted radio wave, the information requesting the transmission of the detection result detected by the sensor, and the information indicating that the first transmitted radio wave has been received from the first communication device. The communication measurement system according to claim 2. The second control section is,
Claims 1 to 3 which control the second communication unit so as to restart the transmission of the second transmission radio wave when it is determined that the reception intensity of the first transmission radio wave is equal to or higher than a predetermined threshold value. The communication measurement system according to any one of the above. The second control section is,
After receiving the response radio wave and transmitting information for a request included in the response radio wave, the second communication unit is controlled so as not to receive the first transmission radio wave from the first communication device for a predetermined time. The communication measurement system according to any one of claims 1 to 4. The second control section, the time when receiving the first transmission radio wave, the time at which the reception intensity when receiving the first transmission radio wave is equal to or greater than a predetermined threshold value, said first transmission radio wave The time between the time when the reception strength in the case of reception exceeds the predetermined threshold value and the time when the reception strength falls below the predetermined threshold value is an intermediate time point, and the reception strength when the first transmission radio wave is received. At least one of the times when the reception intensity is maximized from the time when the value exceeds the predetermined threshold value to the time when the reception intensity falls below the predetermined threshold value is the measurement determined to be in the approaching state. Time
The communication measurement system according to claim 1. The first transmitted radio wave includes the identification information of the first communication device, and includes the identification information.
The communication measurement system according to claim 1 or 6 , wherein the second transmission radio wave includes identification information of the first communication device and information regarding the measurement time. With another communication unit that transmits other transmission radio waves including identification information that identifies its own device, provides another reception period for receiving a predetermined transmission radio wave, and receives the predetermined transmission radio wave.
With other control units that control the transmission of the other transmitted radio waves,
A communication device that communicates with other communication devices
A communication unit that transmits the predetermined transmission radio wave including identification information that identifies the own device, provides a reception period for receiving the other transmission radio wave, and receives the other transmission radio wave.
A control unit that controls the transmission of the predetermined transmission radio wave, and
A storage unit that stores as a measurement time the time that the control unit determines that the own device is in close proximity to the other communication device in response to the other transmitted radio waves received during the reception period.
Equipped with a,
The communication unit
The measured time stored in the storage unit is used as the transmission radio wave and transmitted to the other communication device at each transmission interval.
The control unit
A communication device that controls the communication unit so as not to transmit the next transmission radio wave that has passed the transmission interval when it is determined that the response radio wave to the other transmission radio wave has been received. The control unit
In the receiving period for receiving the other radio wave transmitted from the other communication apparatus, the another radio wave transmitted time, from the other communication device upon receipt of the other radio wave transmitted from the other communication device The time when the reception intensity when receiving the radio wave exceeds the predetermined threshold value, and the time when the reception intensity when receiving the other transmission radio wave from the other communication device exceeds the predetermined threshold value, and then the reception. The time between the time when the intensity falls below the predetermined threshold and the time when the reception intensity when receiving the other transmitted radio wave from the other communication device exceeds the predetermined threshold, and thereafter. At least one of the times when the reception intensity becomes maximum until the reception intensity falls below the predetermined threshold value is measured as the measurement time, and the measured measurement time is included in the predetermined transmission radio wave. The communication device according to claim 8 , wherein the communication unit is controlled so as to transmit. A communication device program to be executed by the communication device according to claim 8 or 9.
To the computer of the communication device
The procedure of transmitting the measured time stored in the storage unit as the transmission radio wave to the other communication device at each transmission interval, and
If it is determined that the response radio wave for the other transmission radio wave received from the other communication apparatus, and procedures for controlling so as not to transmit the radio waves transmitted next after the elapse of the transmission interval,
A program of a communication device that executes. A communication device program to be executed by the communication device according to claim 8 or 9.
To the computer of the communication device
A procedure for detecting the other transmitted radio wave from the other communication device and a procedure for detecting the other transmitted radio wave from the other communication device during the reception period for receiving the other transmitted radio wave from the other communication device.
A step of measuring the time when the detected as the measurement time,
And transmitting included in the transmission radio wave which the own device for each transmission interval the measurement time measured is sent,
If it is determined that the response radio wave for the transmitting radio wave which the own device transmits received from the other communication apparatus, and procedures for controlling so as not to transmit the radio waves transmitted next after the elapse of the transmission interval,
A program of a communication device that executes.

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