JP4541746B2 - Competition measurement system and time measurement method - Google Patents

Description

  The present invention relates to a competition measurement system and a time measurement method capable of appropriately measuring the time of each individual athlete.

In recent years, attempts have been made to measure individual athletes' times in marathon competitions and the like. For example, a measurement system that measures a competitor's individual time based on the time when a barcode is printed on the athlete's race bib and the reader reads the barcode of the athlete who finished the goal has been put into practical use. .
Nevertheless, since this measurement system reads the barcode over a predetermined time after the goal, the time delayed from the actual measurement was measured in the first place. In particular, when a large number of athletes have scored at the same time, there is a problem that waiting for bar code reading occurs and a time considerably delayed from the actual measurement is measured.
In addition to the goal time, there is an increasing demand to measure the passing time at each timekeeping point (intermediate point, etc.), but this measurement system could not cope.

In order to solve such problems, various measurement systems have been developed, and operation tests and the like for practical use have been attempted. In order to measure time closer to actual measurement and to enable measurement at each timing point, the new measurement system is mainly used to measure the time of each individual player without contact. .
Specifically, the time is measured by a radio signal emitted from a transmitter (attached to the bib) carried by the athlete, or the competitor or bib etc. is identified from the photographed video. It is to measure.

Among other things, various devices have been devised for the practical use of measuring systems that allow athletes to carry transmitters. As an example, there is also a technology in which a trigger signal is transmitted by a transmitter within a narrow range along the goal line, and a unique number signal is automatically transmitted from the transmitter when the transmitter reaches the goal line together with the competitor. It is disclosed (for example, see Patent Document 1).
JP-A-8-57104 (Page 3-6, Fig. 1)

  The technique disclosed in Patent Document 1 measures the time (time) from the start when the receiver receives the unique number signal transmitted from the transmitter. When a large number of athletes reach the goal line at the same time, the unique number signals transmitted from the transmitters may overlap each other and cannot be identified. For this reason, the transmitter does not transmit the unique number signal only once, but transmits the unique number signal a plurality of times, thereby preventing the receiver from reading (missing) the unique number.

However, since the time to be measured is counted when the unique number signal can be received, if the unique number signal overlaps, the receiver misses the unique number signal and receives the next unique number, There was a problem that the measured time was somewhat delayed from the actual measurement.
In addition, since the measurement of the time due to the reception of the unique number signal must be performed within a limited range (within a narrow range in which the trigger signal is transmitted), there are many overlapping of the unique number signals. There is a problem that even if a plurality of transmissions are made, the unique number signal may be missed.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a competition measurement system and a time measurement method capable of appropriately measuring the time of each player.

In order to achieve the above object, a measurement system for competition according to the first aspect of the present invention is:
A first device that is carried by the athlete and a second device that is installed at a predetermined measurement point and transmits / receives information to / from the first device when the first device is located nearby. And a signal generation device that emits a trigger signal toward a predetermined measurement zone defined by the measurement point, and a measurement system for competition,
The first device is:
Before athlete reaches the measuring zone, receiving means for receiving the running time sent from the second device,
Clocking means for clocking the running time synchronized with the running time received by the receiving means;
When the athlete moves within said measurement zone, and detecting means for detecting a trigger signal by the signal generating device is emitted,
Specifying means for said detecting means based on the trigger signal detected, it is determined the measurement zone, identifying the running time as the measurement time of the clock means is clocking in a the measuring zone is determined,
Time storage means for storing the measurement time specified by the specifying means;
After the competitor has passed through the measurement zone, the measurement time of the time storing means is stored, together with at least preliminarily identification information assigned to the device-specific, and a transmitting means for transmitting to said second device ,
The second device is:
A running time transmitting means for transmitting the running time toward the first equipment to be carried by the athlete before reaching the measurement zone,
And a measuring time receiving means for receiving the measurement time and the identification information transmitted from the first equipment to be carried by the athlete after passing through the measurement zone,
It is characterized by that.

According to this invention, the receiving means at the first device receives the running time transmitted from the second device before the athlete reaches the measurement zone. The time measuring means measures the running time synchronized with the running time received by the receiving means. The detection means detects a trigger signal generated by the signal generating device when the athlete moves into the measurement zone. The specifying means determines the measurement zone based on the trigger signal detected by the detection means, and specifies the running time measured by the time measuring means in the determined measurement zone as the measurement time. The time storage means stores the measurement time specified by the specifying means. The transmission means transmits the measurement time stored in the time storage means to the second device together with the identification information allocated in advance to the device after the athlete has passed the measurement zone. On the other hand, the running time transmission means in the second device transmits the running time toward the first device carried by the competitor before reaching the measurement zone. The measurement time receiving means receives the measurement time and identification information transmitted from the first device carried by the competitor after passing through the measurement zone.
As described above, the first device first measures the running time synchronized with the running time of the second device before the athlete reaches the measurement zone. Then, the measured running time is specified as the measurement time in the measurement zone. Finally, after the athlete has passed the measurement zone, the measurement time and identification information are transmitted to the second device. Thereby, the second device acquires the measurement time specified and held in the measurement zone by the first device that measures the running time synchronized with the running time transmitted by the second device after passing through the measurement zone. become.
As a result, even if a large number of athletes reach the timing point etc. at the same time, it is possible to appropriately measure the time of each athlete.

Specifying means of said first device, said detecting means from the start of detection of the trigger signal until the end of the detection of the trigger signal determines that the measurement zone, wherein at an intermediate position of the measuring zone is determined The running time measured by the time measuring means may be specified as the measurement time.

  The transmission unit of the first device may transmit the measurement time and the identification information over a plurality of times based on a transmission timing that is different for each device. As a result, anti-collision is realized, and even if a large number of athletes reach the timing point etc. at the same time, the time of each athlete can be measured appropriately.

  The time measuring means of the first device may correct the running time that it has timed based on the running time received based on a predetermined time synchronization protocol.

The second device is:
A running time receiving means for receiving a running time transmitted from a predetermined transmitting device that measures a running time synchronized with a reference running time;
A time measuring means for measuring a running time synchronized with the running time received by the running time receiving means,
The running time transmitting unit may transmit the running time measured by the time measuring unit to the first device.

The running time transmitting means of the second device transmits the running time to which the ID information assigned in advance to the device is added toward the first device,
The receiving means of the first device receives the ID information together with the running time,
The transmission unit of the first device may transmit the measurement time, the ID information, and the identification information toward the second device.

In order to achieve the above object, a time measuring method according to the second aspect of the present invention is:
A first device that is carried by the athlete and a second device that is installed at a predetermined measurement point and transmits / receives information to / from the first device when the first device is located nearby. And a time generation method in a system including a signal generation device that emits a trigger signal toward a predetermined measurement zone defined by a measurement point,
In the first device, before a competitor reaches the measuring zone, a receiving step of receiving the running time sent from the second device,
A time measuring step for measuring a running time synchronized with the running time received in the receiving step;
When the athlete moves within said measurement zone, and detecting a trigger signal by the signal generating device is emitted,
A specifying step of based on said trigger signal detected by the detecting step to determine the measurement zone, identifying the running time was clocked in the clocking step as the measurement time during the measurement zone is determined,
A time storing step of storing the measurement time specified in the specifying step in a predetermined storage unit;
After the competitor has passed through the measurement zone, the measurement time stored in said time storing step, together with at least advance the first device unique to the allocated identification information, transmission to be transmitted to the second device Steps,
It is characterized by providing.

According to this invention, the receiving step receives the running time transmitted from the second device before the athlete reaches the measurement zone in the first device. In the time measuring step, the running time synchronized with the running time received in the receiving step is counted. The detection step detects a trigger signal generated by the signal generating device when the athlete moves into the measurement zone. In the specifying step, the measurement zone is determined based on the trigger signal detected in the detection step, and the running time measured in the timing step in the determined measurement zone is specified as the measurement time. The time storing step stores the measurement time specified in the specifying step in a predetermined storage unit. The transmission step transmits the measurement time stored in the time storage step to the second device together with the identification information allocated in advance to the first device after the athlete has passed the measurement zone.
As described above, the first device first measures the running time synchronized with the running time of the second device before the athlete reaches the measurement zone. Then, the measured running time is specified as the measurement time in the measurement zone. Finally, after the athlete has passed the measurement zone, the measurement time and identification information are transmitted to the second device. Thereby, the second device acquires the measurement time specified and held in the measurement zone by the first device that measures the running time synchronized with the running time transmitted by the second device after passing through the measurement zone. become.
As a result, even if a large number of athletes reach the timing point etc. at the same time, it is possible to appropriately measure the time of each athlete.

The specifying step, from the start of detection of the trigger signal at the detection step until the end of the detection of the trigger signal determines that the measurement zone, at the timing step at an intermediate position of the measuring zone is determined The measured running time may be specified as the measurement time.

In the transmission step, the measurement time and the identification information may be transmitted a plurality of times based on transmission timings that differ for each first device. As a result, anti-collision is realized, and even if a large number of athletes reach the timing point etc. at the same time, the time of each athlete can be measured appropriately.

  The time measuring step may correct the running time that the device has timed based on the running time received based on a predetermined time synchronization protocol.

  According to the present invention, it is possible to appropriately measure the time of each individual player.

  A competition measurement system according to an embodiment of the present invention will be described below with reference to the drawings. In addition, as an example, it demonstrates as a measurement system for competition which measures time at a plurality of points in a marathon competition.

(Embodiment 1)
FIG. 1 is a schematic diagram showing an example of the configuration of a competition measurement system 1 applied to the embodiment of the present invention. Hereinafter, a case where the start point and the goal point are different will be described as an example.

As shown in the figure, the competition timing system 1 includes a start signal generator 11 installed at a start point, a running time transmitter 12, and a running time receiver 13 installed at each timing point (a relay point or the like). , Time display device 14, running time transmitter 15, trigger signal generator 16, measurement time receiver 17, data processing device 18, running time receiver 13 installed at the goal point, and photo determination device 19. And a running time transmitter / receiver 20 mounted on the watch wheel TC that travels from the start point (near) to each goal point (near) via each timing point (near), and a wireless tag carried by each player RN 21.
Note that the start point, each timing point, and the goal point are scattered at positions separated from each other. The running time transmitter 12 and each running time receiver 13 and the running time transmitter / receiver 20 can perform wireless communication only when the watch wheel TC is located in the vicinity of each point.
Further, only when the athlete RN is located in the vicinity of each timing point, wireless communication between the running time transmitter 15 and the wireless tag 21 and wireless communication between the measurement time receiver 17 and the wireless tag 21 are possible. It has become.

  The start signal generator 11 installed at the start point supplies the start signal to the running time transmitter 12 in synchronization with the start instruction from the starter. Specifically, a predetermined start pistol is connected to the start signal generator 11, and when this start pistol is fired (shot), the start signal is supplied to the running time transmitter 12.

The running time transmitter 12 includes a timer (a time measuring unit 34 to be described later) that measures a running time serving as a reference in response to the start signal, and transmits the measured running time to a watch wheel TC located nearby.
Specifically, as shown in FIG. 2, the running time transmitter 12 includes an antenna 31, a transmission unit 32, a signal reception unit 33, and a timing unit 34.

The antenna 31 is a transmission antenna. Further, the transmission unit 32 transmits the running time counted by the time measuring unit 34 to the timepiece wheel TC (running time transmitter / receiver 20) located in the vicinity via the antenna 31.
The transmission unit 32 performs wireless communication with the running time transmitter / receiver 20 using a time synchronization protocol described later, and appropriately transmits the running time.

When the signal receiving unit 33 receives the start signal supplied from the start signal generator 11, the signal receiving unit 33 instructs the timing unit 34 to start timing.
The time measuring unit 34 is a timer for measuring a running time as a reference, and starts measuring time in response to a start signal (instruction from the signal receiving unit 33). The timekeeping unit 34 includes a highly stable crystal oscillator, and can stably keep the running time.

The running time receivers 13 installed at the respective time points and goal points receive the running time transmitted from the watch wheel TC (running time transmitter / receiver 20), and the running time synchronized with the received running time. Keep time.
Specifically, as shown in FIG. 3, the running time receiver 13 includes an antenna 41, a receiving unit 42, a time correcting unit 43, a time measuring unit 44, and a time supply unit 45.

The antenna 41 is a receiving antenna. The receiving unit 42 also receives a running time transmitted from a watch wheel TC (running time transmitter / receiver 20) located in the vicinity via the antenna 41.
The receiving unit 42 performs wireless communication using the time synchronization protocol with the running time transmitter / receiver 20 and appropriately receives the running time.

The time correction unit 43 corrects the running time counted by the timing unit 44 based on the running time received by the receiving unit 42.
The timing unit 44 starts timing by a switch operation (not shown) at the time when the start instruction is given by the starter. The time measuring unit 44 is a timer for measuring the running time, and the time correcting unit 43 measures the running time synchronized with the running time received by the receiving unit 42. Note that the timing unit 44 also includes a highly stable crystal oscillator, and can stably keep the running time.

  The time supply unit 45 supplies the running time (time information) measured by the time measuring unit 44 to the time display device 14 and the running time transmitter 15.

Returning to FIG. 1, the time display device 14 installed at each timing point includes an electric bulletin board or the like, and displays the running time according to the time information supplied from the running time receiver 13.
The time display device 14 may also be installed (mounted) at the start point, the goal point, and the watch wheel TC.

The running time transmitter 15 as a running time transmitting means installed at each timing point is for running time toward the player RN (radio tag 21) located in the vicinity (before reaching the measurement zone Z described later). Send.
Specifically, the running time transmitter 15 constitutes a part of the second device. As shown in FIG. 4, the running time transmitter 15 includes an antenna 51, a transmission unit 52, an ID storage unit 53, and a time acquisition unit 54. Composed.

The antenna 51 is a transmission antenna. Further, the transmission unit 52 transmits a running time or the like to the player RN (wireless tag 21) located in the vicinity and before reaching the measurement zone via the antenna 51. That is, the transmission unit 52 adds the running time ID stored in the ID storage unit 53 to the running time acquired by the time acquisition unit 54 and transmits the running time ID toward the wireless tag 21.
The transmission unit 52 performs wireless communication with the wireless tag 21 using a time synchronization protocol, and appropriately transmits the running time.

The ID storage unit 53 stores individual running time IDs that are different for each running time transmitter 15 (each time point). This running time ID is used to identify each running time transmitter 15.
The time acquisition unit 54 acquires the running time according to the time information supplied from the running time receiver 13.
Note that the running time transmitter 15 may also independently measure the running time. In that case, the running time synchronized with the running time counted by the running time receiver 13 is counted.

Returning to FIG. 1, the trigger signal generator 16 installed at each timing point is installed, for example, toward a timing line L that is a timing point, and in a measurement zone Z in a predetermined range centered on the timing line L. , Emit a trigger signal.
As an example, the trigger signal generation device 16 generates a microwave of 24 GHz and transmits a trigger signal toward the measurement zone Z by a predetermined parabolic antenna. The trigger signal generator 16 only needs to obtain the trigger signal directivity and be able to transmit the trigger signal toward the measurement zone Z in the same manner. Therefore, even if a communication technique such as UWB (Ultra Wide Band) is applied. Good.

The measurement time receiver 17 as the measurement time receiving means receives the measurement time and the like sent from the player RN (the radio tag 21) located in the vicinity (after passing the measurement zone Z), and the running time transmitter / receiver 15 And constitutes a second device.
Specifically, the measurement time receiver 17 includes an antenna 61, a reception unit 62, a temporary storage unit 63, and an output unit 64, as shown in FIG.

The antenna 61 is a receiving antenna. The receiving unit 62 receives the measurement time, the running time ID, and the tag ID transmitted from the player RN (wireless tag 21) that has passed through the measurement zone Z via the antenna 61.
The receiving unit 62 receives a measurement time or the like transmitted at a unique response timing that differs depending on the wireless tag 21. In addition, when the wireless tag 21 transmits the measurement time or the like over a plurality of times in consideration of duplication with other wireless tags 21, the reception unit 62 tries to receive each measurement time or the like.

  The temporary storage unit 63 temporarily stores the measurement time, the running time ID, and the tag ID received by the receiving unit 62. The temporary storage unit 63 has a capacity that can be sufficiently stored even when the receiving unit 62 receives a large number of measurement times and the like from a large number of competitors RN (different wireless tags 21) at the same time. ing.

  The output unit 64 sequentially outputs each measurement time (measurement time, running time ID, and tag ID) stored in the temporary storage unit 63 to the data processing device 18.

Returning to FIG. 1, the data processing device 18 aggregates the measurement time and the like output from the measurement time receiver 17 and generates ranking data and the like.
At that time, the data processing device 18 verifies whether or not the measured time is based on the running time transmitted from the running time transmitter 15 at the timing point according to the output running time ID or the like. Then, only the time based on the running time transmitted from the timing point may be processed as the official measurement time, and the others may be processed as the reference measurement time.

  The photo determination device 19 installed at the goal point includes a line sensor / video device or a high-speed video device, and appropriately records a video signal (video such as a goal line) supplied from a predetermined camera. At that time, the photograph determination device 19 combines (synchronizes) and records the time information supplied from the running time receiver 13 with the video signal. The recorded video is used to determine the finish order of the competitor who finishes the goal.

The running time transmitter / receiver 20 mounted on the watch wheel TC receives the running time transmitted from the running time transmitter 12 when the watch wheel TC is located in the vicinity of the start point, and is synchronized with the received running time. Time your running time.
In addition, the running time transmitter / receiver 20 uses the running time (running time synchronized with the running time of the start point) measured by itself when the watch wheel TC is located in the vicinity of each timing point or goal point. Transmit to the time receiver 13.
Specifically, as shown in FIG. 6, the running time transmitter / receiver 20 includes an antenna 71, a receiving unit 72, a timing unit 73, and a transmitting unit 74.

The antenna 71 is a transmission / reception antenna. The receiving unit 72 receives the running time transmitted from the running time transmitter 12 via the antenna 71 when the watch wheel TC is located in the vicinity of the start point.
The receiving unit 72 performs wireless communication using the time synchronization protocol with the running time transmitter 12 and appropriately receives the running time.

  The time measuring unit 73 is also a timer for measuring the running time, and measures the running time synchronized with the running time received by the receiving unit 72. Note that the timing unit 73 is also provided with a highly stable crystal oscillator, so that the running time can be stably maintained.

  The transmission unit 74 transmits the running time counted by the timing unit 73 to the nearby running time receiver 13 via the antenna 71 when the timepiece TC is located at each timing point or goal point.

Returning to FIG. 1, the wireless tag 21 carried by the player RN first measures the running time synchronized with the running time of the running time receiver 13 before the player RN reaches the measurement zone Z. Moreover, the measurement zone Z is discriminate | determined by detecting the trigger signal emitted from the trigger signal generator 16, and the running time measured in the measurement zone Z is specified as measurement time. Then, after the player RN passes the measurement zone Z, the specified measurement time and the like are transmitted to the measurement time receiver 17.
Specifically, the wireless tag 21 constitutes a first device, and as shown in FIG. 7, an antenna 81, a receiving unit 82 as a receiving means, a time correction unit 83, and a time measuring unit 84 as a time measuring means. , A trigger antenna 85, a trigger detection unit 86 as detection means, a time specification unit 87 as specification means, a storage unit 88, and a transmission unit 89 as transmission means.

The antenna 81 is a transmission / reception antenna. The receiving unit 82 receives the running time transmitted from the running time transmitter 15 via the antenna 81 before the athlete RN reaches the measurement zone Z.
The receiving unit 82 performs wireless communication with the running time transmitter 15 using a time synchronization protocol, and appropriately receives the running time.

The time correction unit 83 corrects the running time counted by the time measuring unit 84 based on the running time received by the receiving unit 82. In addition, the time correction unit 83 extracts a running time ID added to the received running time and stores it in the storage unit 88.
The timing unit 84 starts timing by operating a switch or the like (not shown) at a predetermined competition start time, but is also a timer that measures the running time, and is synchronized with the running time received by the receiving unit 82 by the time correction unit 83. Time your running time.
The timing unit 84 also includes a highly stable crystal oscillator, and can stably keep the running time. Note that the timing unit 84 does not always measure the time, but only after the receiving unit 82 receives the running time, the running time is counted only for a time sufficient for the competitor RN to pass the measurement zone Z. You may do it.

The trigger antenna 85 is tuned to the microwave generated by the trigger signal generator 16 and receives the trigger signal.
The trigger detection unit 86 detects a trigger signal via the trigger antenna 85. Then, the detection result is notified to the time specifying unit 87. For example, the trigger detection unit 86 detects the trigger signal ON timing (the timing when the trigger signal is first detected from the state where the trigger signal is not detected) and the trigger signal OFF timing (when the trigger signal is detected). The timing at which the detection is finished) is notified to the time specifying unit 87.

The time specifying unit 87 determines the measurement zone Z based on the trigger signal detected by the trigger detection unit 86, and specifies the running time measured by the time measuring unit 84 in the determined measurement zone Z as the measurement time.
For example, when the athlete RN reaches the measurement zone Z and the ON timing of the trigger signal is notified from the trigger detection unit 86, the time specifying unit 87 uses the running time counted by the time measuring unit 84 as the start time. Store in the storage unit 88. Thereafter, when the player RN passes through the measurement zone Z and the trigger detection unit 86 is notified of the trigger signal OFF timing, the running time counted by the timing unit 84 is stored in the storage unit 88 as the end time. . And the time specific unit 87 calculates | requires the intermediate value of start time and end time, and specifies it as the measurement time which the player RN passed the time measuring line L. FIG.
The time specifying unit 87 deletes the start time and the end time from the storage unit 88 and stores the specified measurement time in the storage unit 88.

The storage unit 88 stores the running time ID extracted by the time correction unit 83 and stores the measurement time specified by the time specifying unit 87.
In addition, the memory | storage part 88 has memorize | stored separate tag ID for every radio | wireless tag 21 (every player RN). This tag ID is used to identify each wireless tag 21 (each player RN).

The transmission unit 89 uses the measurement time, the running time ID, and the tag ID stored in the storage unit 88 as the measurement time at different response timings for each wireless tag 21 after the athlete RN passes the measurement zone Z. Transmit to the receiver 17.
The transmission unit 89 may transmit the measurement time and the like to the measurement time receiver 17 over a plurality of times in consideration of duplication with other wireless tags 21.

  Hereinafter, operation | movement of the measurement system 1 for competitions of the structure mentioned above is demonstrated with reference to FIG. The watch wheel TC is located at the start point (near) at the start of the competition, travels ahead of the player RN (for example, travels ahead of the first group, etc.), and each time point (near) It is assumed that the user moves to the goal point (near) via the route.

First, operations of the running time transmitter 12 and the running time transmitter / receiver 20 at the start time will be described.
When the start pistol is fired by the starter, the start signal generator 11 generates a start signal and supplies it to the running time transmitter 12.
The running time transmitter 12 starts measuring the running time in response to the start signal supplied from the start signal generator 11. Then, the running time transmitter 12 transmits the running time being measured to the timepiece TC (running time transmitter / receiver 20) located in the vicinity.
Specifically, the running time is appropriately transmitted between the running time transmitter 12 and the running time transmitter / receiver 20 by a time synchronization protocol as shown in FIG. That is, the running time transmitter 12 performs transmission processing on the transmission side, and the running time transmitter / receiver 20 performs reception processing on the reception side.

  First, the running time transmitter 12 transmits the running time to the running time transmitter / receiver 20 (step S1). That is, the running time (running time in response to the start signal) serving as a reference to be measured by itself is transmitted toward the timepiece TC located in the vicinity.

On the other hand, the running time transmitter / receiver 20 receives the running time sent from the running time transmitter 12 (step S2).
The running time transmitter / receiver 20 synchronizes with the received running time (step S3). That is, the running time transmitter / receiver 20 starts measuring the running time synchronized with the reference running time.

  The running time transmitter / receiver 20 waits until a predetermined response timing (step S4), and transmits information indicating link completion to the running time transmitter 12 (step S5). Then, the running time transceiver 20 finishes the reception process.

  The running time transmitter 12 waits for the synchronization completion in the running time transmitter / receiver 20 (step S6), and when the information indicating the link completion is sent, the transmission process is finished.

  With such a time synchronization protocol (transmission process and reception process), the running time measured by the running time transmitter 12 and the running time measured by the running time transmitter / receiver 20 are synchronized.

Next, the operation of the running time transmitter / receiver 20 and the running time receiver 13 at each timing point will be described.
The running time receiver 13 starts timing by operating a switch (not shown) at a predetermined competition start time. Then, when the watch wheel TC traveling ahead of the competitor RN moves to the vicinity of any timing point, the running time transmitter / receiver 20 is directed toward the running time receiver 13 at the timing point. Sends the running time (running time synchronized with the reference running time) that the user is timing.
Specifically, the running time is appropriately transmitted between the running time transmitter / receiver 20 and the running time receiver 13 by the time synchronization protocol as shown in FIG. 9 described above. That is, the running time transmitter / receiver 20 performs transmission processing on the transmission side, and the running time receiver 13 performs reception processing on the reception side.

That is, the transmission process and the reception process described above are performed in the same manner, and the running time measured by the running time transmitter / receiver 20 and the running time measured by the running time receiver 13 are synchronized. Thereafter, the running time receiver 13 measures the running time synchronized with the reference running time.
Then, the time display device 14 installed at the timing point sequentially displays the running time synchronized with the reference running time. In addition, the running time transmitter 15 can transmit the running time to the competitor RN (wireless tag 21).

Next, operations of the running time transmitter 15, the wireless tag 21, the measurement time receiver 17, and the like at each timing point will be described with reference to FIG. 10 and the like.
As described above, the running time has already been transmitted by the watch wheel TC (running time transmitter / receiver 20) preceding the competitor RN, and the running time transmitter 15 can transmit the running time.

When the wireless tag 21 approaches the vicinity of the timing point together with the player RN, the running time transmitter 15 transmits the running time to the wireless tag 21 before the player RN reaches the measurement zone Z.
Specifically, the running time is appropriately transmitted between the running time transmitter 15 and the wireless tag 21 by the time synchronization protocol as shown in FIG. 9 described above. That is, the running time transmitter 15 performs transmission processing on the transmission side, and the wireless tag 21 performs reception processing on the reception side. Thereafter, the wireless tag 21 measures the running time synchronized with the reference running time.

Thereafter, when the player RN reaches the measurement zone Z, the wireless tag 21 determines the measurement zone Z based on the detection result of the trigger signal generated by the trigger signal generator 16, and the running time ( (Intermediate value) is specified as the measurement time. Then, after the player RN passes the measurement zone Z, the wireless tag 21 transmits the measurement time and the like to the measurement time receiver 17.
Specifically, the wireless tag 21 executes a time measurement process as shown in FIG.

First, the wireless tag 21 waits for detection of a trigger signal generated by the trigger signal generator 16 (step S11). Then, when the wireless tag 21 detects the trigger signal, it determines whether or not it is the first detection (step S12).
That is, the wireless tag 21 determines whether or not the player RN has reached the measurement zone Z and has detected the trigger signal first (first time) from the state in which the trigger signal has not been detected.

If it is determined that the detection is the first detection, the wireless tag 21 stores the running time measured as the start time (step S13).
On the other hand, if it is determined that the detection is not the first time, the end of detection of the trigger signal is waited (step S14). That is, the wireless tag 21 stands by until the player RN passes the measurement zone Z and finishes detecting the trigger signal.

When the detection of the trigger signal is completed, the wireless tag 21 stores the running time that is being measured as the end time (step S15).
The wireless tag 21 obtains an intermediate value between the start time and the end time, and specifies the measurement time when the player RN has passed the time measurement line L (step S16).

After the player RN passes the measurement zone Z, the wireless tag 21 stands by until a different response timing passes (step S17), and when the response timing is reached, the measurement time is directed to the measurement time receiver 17. Transmit (step S18).
That is, the wireless tag 21 transmits the measurement time, the running time ID, and the tag ID to the measurement time receiver 17.
At this time, since the measurement time and the like are transmitted at different response timings (response time slots), anti-collision is realized.

  In this way, the measurement time and the like transmitted from the wireless tag 21 are received by the measurement time receiver 17 and totaled in the data processing device 18.

Next, returning to FIG. 8, the operation of the running time transceiver 20 and the running time receiver 13 at the goal point will be described.
The running time receiver 13 starts timing by operating a switch (not shown) at a predetermined competition start time. Then, when the watch wheel TC traveling ahead of the competitor RN moves to the vicinity of the goal point, the running time transmitter / receiver 20 counts itself toward the running time receiver 13 at the goal point. Running time (running time synchronized with the reference running time).
Again, the running time is appropriately transmitted between the running time transmitter / receiver 20 and the running time receiver 13 by the time synchronization protocol as shown in FIG. That is, the transmission process and the reception process described above are performed in the same manner, and the running time measured by the running time transmitter / receiver 20 and the running time measured by the running time receiver 13 are synchronized. Thereafter, the running time receiver 13 measures the running time synchronized with the reference running time.
Then, the photo determination device 19 installed at the goal point appropriately records an image such as a goal line (an image of the player RN who finishes). At that time, the photograph determination device 19 combines (synchronizes) and records the time information supplied from the running time receiver 13 with the video signal.

  As described above, the running time transmitter / receiver 20 of the timepiece TC is located in the vicinity of the start point at the start, and synchronizes with the running time measured by the running time transmitter 12. And since the clock TC runs ahead of the competitor RN in order to each timing point and goal point, the running time transmitter / receiver 20 measures itself to the running time receiver 13 located in the vicinity. Send running time (synchronized running time). Thereby, each running time receiver 13 measures the running time synchronized with the running time transmitter 12.

Moreover, since the running time is transmitted before the competitor RN reaches the measurement zone Z at each timing point, the wireless tag 21 measures the running time synchronized with the running time of the running time transmitter 15. Then, when the player RN reaches the measurement zone Z and passes, the wireless tag 21 specifies an intermediate running time as the measurement time. Finally, the wireless tag 21 transmits the measurement time and the like toward the measurement time receiver 17 after the athlete RN passes the measurement zone Z.
As a result, the wireless tag 21 that measures the running time synchronized with the reference running time acquires the measurement time specified and held in the measurement zone Z after passing through the measurement zone.
As a result, even if a large number of athletes reach the timing point etc. at the same time, it is possible to appropriately measure the time of each athlete.

In the above embodiment, the case where the running time is transmitted to the running time receiver 13 installed at each timing point or goal point has been described. However, the installation location of the running time receiver 13 is not limited to these and is arbitrary. It is.
For example, a running time receiver 13 may be mounted on a broadcast relay vehicle such as a television or radio that broadcasts a competition so that the running time can be transmitted from the running time transceiver 20.

  In the above embodiment, the case where the start point and the goal point are different has been described as an example. However, the present invention can be similarly applied to the case where the start point and the goal point are the same.

In the above embodiment, the marathon competition has been described as an example, but the competition to be timed is not limited to this and is arbitrary.
For example, the present invention can be appropriately applied to racewalking, relay races, handicapped person wheelchair road races, bicycle road races, triathlons, and mountain sports such as running and orientation.

  As described above, according to the present invention, it is possible to appropriately measure the time of each player.

It is a schematic diagram which shows an example of a structure of the measurement system for competitions concerning embodiment of this invention. It is a block diagram which shows an example of a structure of a running time transmitter. It is a block diagram which shows an example of a structure of a running time receiver. It is a block diagram which shows an example of a structure of another running time transmitter. It is a block diagram which shows an example of a structure of a measurement time receiver. It is a block diagram which shows an example of a structure of a running time transmitter / receiver. It is a block diagram which shows an example of a structure of a wireless tag. It is a schematic diagram for demonstrating operation | movement of the measurement system for competitions. It is a flowchart for demonstrating the transmission process and reception process which concern on embodiment of this invention. It is a schematic diagram for demonstrating operation | movement of the wireless tag etc. in each timekeeping point. It is a flowchart for demonstrating the time measurement process which concerns on embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Competition measurement system 11 Start signal generator 12 Running time transmitter 13 Running time receiver 14 Time display device 15 Running time transmitter 16 Trigger signal generator 17 Measurement time receiver 18 Data processing device 19 Photo determination device 20 Running time Transceiver 21 Radio tag

Claims (10)

A first device that is carried by the athlete and a second device that is installed at a predetermined measurement point and transmits / receives information to / from the first device when the first device is located nearby. And a signal generation device that emits a trigger signal toward a predetermined measurement zone defined by the measurement point, and a measurement system for competition,
The first device is:
Before athlete reaches the measuring zone, receiving means for receiving the running time sent from the second device,
Clocking means for clocking the running time synchronized with the running time received by the receiving means;
When the athlete moves within said measurement zone, and detecting means for detecting a trigger signal by the signal generating device is emitted,
Specifying means for said detecting means based on the trigger signal detected, it is determined the measurement zone, identifying the running time as the measurement time of the clock means is clocking in a the measuring zone is determined,
Time storage means for storing the measurement time specified by the specifying means;
After the competitor has passed through the measurement zone, the measurement time of the time storing means is stored, together with at least preliminarily identification information assigned to the device-specific, and a transmitting means for transmitting to said second device ,
The second device is:
A running time transmitting means for transmitting the running time toward the first equipment to be carried by the athlete before reaching the measurement zone,
And a measuring time receiving means for receiving the measurement time and the identification information transmitted from the first equipment to be carried by the athlete after passing through the measurement zone,
Measuring system for competitions characterized by this. Specifying means of said first device, said detecting means from the start of detection of the trigger signal until the end of the detection of the trigger signal determines that the measurement zone, wherein at an intermediate position of the measuring zone is determined The running time measured by the time measuring means is specified as the measurement time.
The competition measurement system according to claim 1, wherein: The transmission means of the first device transmits the measurement time and identification information to the second device over a plurality of times based on transmission timings that differ for each device.
The competition measurement system according to claim 1, wherein the measurement system is for competition. The time measuring means of the first device corrects the running time that it has timed based on the running time received based on a predetermined time synchronization protocol.
The game measurement system according to any one of claims 1 to 3, wherein the game measurement system is a game measurement system. The second device is:
A running time receiving means for receiving a running time transmitted from a predetermined transmitting device that measures a running time synchronized with a reference running time;
A time measuring means for measuring a running time synchronized with the running time received by the running time receiving means,
The running time transmitting means transmits the running time measured by the time measuring means to the first device.
The competition measurement system according to any one of claims 1 to 4, wherein the measurement system is for competition. The running time transmitting means of the second device transmits the running time to which the ID information assigned in advance to the device is added toward the first device,
The receiving means of the first device receives the ID information together with the running time,
The transmission means of the first device transmits the measurement time, ID information, and identification information toward the second device.
The game measurement system according to claim 1, wherein the game measurement system is a game measurement system. A first device that is carried by the athlete and a second device that is installed at a predetermined measurement point and transmits / receives information to / from the first device when the first device is located nearby. And a time generation method in a system including a signal generation device that emits a trigger signal toward a predetermined measurement zone defined by a measurement point,
In the first device, before a competitor reaches the measuring zone, a receiving step of receiving the running time sent from the second device,
A time measuring step for measuring a running time synchronized with the running time received in the receiving step;
When the athlete moves within said measurement zone, and detecting a trigger signal by the signal generating device is emitted,
A specifying step of based on said trigger signal detected by the detecting step to determine the measurement zone, identifying the running time was clocked in the clocking step as the measurement time during the measurement zone is determined,
A time storing step of storing the measurement time specified in the specifying step in a predetermined storage unit;
After the competitor has passed through the measurement zone, the measurement time stored in said time storing step, together with at least advance the first device unique to the allocated identification information, transmission to be transmitted to the second device Steps,
A time measuring method comprising: The specifying step, from the start of detection of the trigger signal at the detection step until the end of the detection of the trigger signal determines that the measurement zone, at the timing step at an intermediate position of the measuring zone is determined Specify the measured running time as the measurement time.
The time measuring method according to claim 7. The transmission step transmits a measurement time and identification information over a plurality of times based on transmission timings that differ for each of the first devices.
The time measuring method according to claim 7 or 8, characterized in that. The timekeeping step corrects the running time that it has timed based on the running time received based on a predetermined time synchronization protocol,
The time measuring method according to any one of claims 7 to 9, wherein

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