An ultra-thin swimming start relay judge

Abstract

The present invention relates to the technical field of swimming timing, and particularly to an ultra-thin swimming start relay judge. A timing module; a display module; a data transmission module; a detection module; a control module is used to determine whether the accuracy of the timing of the relay judge meets the requirements according to the timing error, and when it is determined that the requirements are not met, the power supply voltage of the timing module is adjusted to a corresponding value according to the display delay difference, or the proportion of the data volume of the wireless data transmission is adjusted to a corresponding value according to the bandwidth difference, or the sensitivity of the touch panel is increased to a corresponding value according to the utilization difference. The present invention compares the time of the video in the high-speed camera with the time displayed by the timing device, thereby establishing a determination criterion for whether there is a delay in the timing device, thereby determining in real time whether there is a delay, and when it is determined that the accuracy does not meet the requirements, adjusting the corresponding parameters in time, thereby ensuring the accuracy of timing.

Description

Technical Field

[0001] The present invention relates to the technical field of swimming timing, and particularly to an ultra-thin swimming start relay judge. Background Art

[0002] A swimming timer is used for the competitions and trainings of swimming events. It is an important device for determining the finishing results of swimmers when they reach the end of the lane, and is a basic device for realizing automatic swimming timing.

[0003] Chinese Patent Publication No.: CN112818842A discloses an intelligent image recognition swimming timing system and timing method based on machine learning, including: a swimming pool, in which K lanes are arranged, where K is a positive integer greater than or equal to 1, namely the 1st lane, the 2nd lane, the 3rd lane,..., the Kth lane. The feature is that an image acquisition display and a timer connected to the image acquisition display are arranged at the starting end or / and the opposite end of each lane; it also includes a timing host, a result processing host and a large screen display. The timing host is respectively connected to the result processing host and each timer, and the result processing host is connected to the large screen; the personal information and corresponding results of the swimmers in each lane are displayed on the large screen. It can be seen that the intelligent image recognition swimming timing system and timing method based on machine learning have the following problems: the corresponding operating parameters cannot be adjusted to the corresponding values according to whether there is a delay, so the accuracy of timing cannot be guaranteed. Summary of the Invention

[0004] Therefore, the present invention provides an ultra-thin swimming start relay judge to overcome the problem that the accuracy of timing cannot be guaranteed in the prior art.

[0005] To achieve the above object, the present invention provides an ultra-thin swimming start relay judge. It includes:

[0006] A timing module, including a takeoff sensor for emitting an electrical signal at takeoff, a touch panel for triggering an electrical signal when the athlete reaches the end, and a timer for recording the swimming time of the athlete;

[0007] A data transmission module, which is connected to the timing module for data transmission of the relay judge;

[0008] A display module, which is respectively connected to the timing module and the data transmission module, and includes a plurality of display screens;

[0009] A detection module, which is connected to the data transmission module, and includes a plurality of high-speed cameras arranged in the swimming venue for acquiring image information during the competition and a plurality of network detectors for detecting the network of the relay judge;

[0010] A control module, which is respectively connected to the timing module, the display module, the data transmission module and the detection module, and is used to adjust the power supply voltage of the timing module to a corresponding value according to the display delay difference, or adjust the proportion of the data volume of wireless data transmission to a corresponding value according to the bandwidth difference, or increase the sensitivity of the touchpad to a corresponding value according to the utilization difference when it is determined that the timing accuracy of the relay judge does not meet the requirements according to the timing error.

[0011] Further, the control module is also used to determine whether the timing accuracy of the relay judge meets the requirements according to the timing error, where

[0012] If the timing error is less than or equal to a preset timing error, it is determined that the timing accuracy of the relay judge meets the requirements;

[0013] If the timing error is greater than the preset timing error, it is determined that the timing accuracy of the relay judge does not meet the requirements, and the reason for the non - compliance of the timing accuracy of the relay judge is determined according to the display delay;

[0014] The timing error is the absolute value of the difference between the time recorded by the high - speed camera and the time displayed by the timing device.

[0015] Further, the control module determines the reason for the non - compliance of the timing accuracy of the relay judge according to the display delay,

[0016] If the display delay is greater than the preset display delay, it is determined that the reason for the non - compliance of the timing accuracy of the relay judge is that the operation of the display module does not meet the requirements, and the processing method is determined according to the bandwidth utilization rate;

[0017] If the display delay is less than or equal to the preset display delay, it is determined that the reason for the non - compliance of the timing accuracy of the relay judge is that the operation of the timing module does not meet the requirements, and the power supply voltage of the timing module is reduced to a corresponding value according to the display delay difference;

[0018] The display delay is the absolute value of the time difference between the time when the timing device issues the timing and the time when the display screen shows the timing time.

[0019] Further, the processing method is determined according to the bandwidth utilization rate,

[0020] If the bandwidth utilization rate is greater than the preset bandwidth utilization rate, wireless and wired data are used for data transmission together, and the proportion of the data volume of wireless data transmission is reduced to a corresponding value according to the bandwidth difference;

[0021] If the bandwidth utilization rate is less than or equal to the preset bandwidth utilization rate, the sensitivity of the touchpad is increased to a corresponding value according to the utilization difference.

[0022] Further, the reduction amplitude of the proportion of the data volume of the wireless data transmission is determined according to the bandwidth difference;

[0023] The bandwidth difference is the difference between the bandwidth utilization rate and the preset bandwidth utilization rate.

[0024] Further, the improvement amplitude of the sensitivity is determined according to the utilization difference;

[0025] The utilization difference is the difference between the preset bandwidth utilization rate and the bandwidth utilization rate.

[0026] Further, the reduction amplitude of the power supply voltage of the timer is determined according to the display delay difference;

[0027] The display delay difference is the difference between the preset display delay and the display delay.

[0028] Further, the data transmission module adopts two modes of wireless data transmission and wired data transmission, and preferentially selects the wireless data transmission mode.

[0029] Further, a limit value of the sensitivity is also set in the control module. If the sensitivity value of the touchpad is lower than the limit value after adjustment, it is determined that there is a risk of water wave mis-touch of the relay judge, and a device failure notice is issued.

[0030] Further, a limit voltage is also set in the control module. If the voltage of the timing module is lower than the limit voltage, it is determined that the current timing module does not meet the usage requirements, and a timing module replacement notice is issued.

[0031] Compared with the prior art, the beneficial effect of the present invention is that the calibration test for detecting whether there is a delay in the swimming timing device generally uses professional calibration equipment to simulate the takeoff and touch end time of athletes, check whether the response time of the timing device is accurate, and at the same time use two sets of independent timing devices for testing, compare whether the time records of the two sets of devices are consistent, invite well-trained athletes to participate in the test, require them to continuously perform multiple takeoffs and touch the end, observe whether the reaction of the timing device is consistent, and whether there are time differences between different athletes, historical data comparison: view the performance records of athletes in the same event before, to see if there are abnormal time fluctuations. There will be problems that the delay cannot be detected in real time. The present invention compares the time in the video in the high-speed camera with the time displayed by the timing device, thereby establishing a judgment standard for whether there is a delay in the timing device, thereby judging whether there is a delay in real time, and when the judgment accuracy does not meet the requirements, adjusting the corresponding parameters in time to ensure the accuracy of timing.

[0032] Further, the present invention determines the reason why the timing of the relay judge does not meet the requirements according to the display delay, and thus adjusts the relevant operating parameters according to the determined reason, so as to adjust in time, thereby further ensuring the accuracy of timing.

[0033] Further, the present invention distinguishes the situation where the timing of the relay judge does not meet the requirements due to network fluctuations and the sensitivity of the touchpad by calculating the bandwidth utilization rate, so as to accurately determine the reason, thereby further ensuring the accuracy of timing.

[0034] Further, the present invention calculates the bandwidth difference and compares it with a preset standard, and thus selects a corresponding adjustment coefficient according to the actual situation, so as to timely reduce the proportion of the data volume of wireless data transmission, and thus through the diversification of data transmission, reduce the excessive bandwidth occupation in a single data transmission process, resulting in network slowness, thereby increasing the data transmission speed, and thus further ensuring the accuracy of timing.

[0035] Further, the present invention improves the sensitivity, and thus makes up for the delay caused by subsequent transmission and display processes through the quick response of the touchpad, so as to ensure that the delay between the display screen and the content captured by the high-speed camera is within the allowable range, thereby further ensuring the accuracy of timing.

[0036] Further, in actual application, the operating voltage of the timer can be selected within a certain range according to different situations. The present invention, considering safety, uses low-voltage direct current and enables the voltage to be self-adjustable within a certain range, so as to avoid the risk of breakdown of the insulation layer due to old equipment lines and too high voltage, thereby ensuring the stability of equipment operation, and thus further ensuring the accuracy of timing. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 is the structural block diagram of the ultra-thin swimming start relay judge described in the embodiment of the present invention;

[0038] Figure 2 is the judgment flow chart for determining whether the timing accuracy of the relay judge meets the requirements in the embodiment of the present invention;

[0039] Figure 3 is the judgment flow chart for determining the reason why the timing accuracy of the relay judge does not meet the requirements in the embodiment of the present invention;

[0040] Figure 4 is the judgment flow chart for reducing the power supply voltage of the timer in the embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0041] In order to make the objectives and advantages of the present invention more clearly understood, the present invention will be further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0042] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and do not limit the protection scope of the present invention.

[0043] It should be noted that in the description of the present invention, the terms indicating directions or positional relationships such as "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0044] In addition, it should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] Please refer to Figure 1 as shown, which is a structural block diagram of the ultra-thin swimming start relay judge described in the embodiments of the present invention, including:

[0046] A timing module, including a takeoff sensor for sending an electrical signal at the takeoff and a touch panel for triggering an electrical signal when the athlete reaches the finish line;

[0047] A data transmission module, which is connected to the timing module and is used for data transmission between the various modules of the relay judge;

[0048] A display module, which is respectively connected to the timing module and the data transmission module, and includes a number of display screens;

[0049] A detection module, which is connected to the data transmission module, and includes a number of high-speed cameras arranged in the swimming venue for detecting the situation during the competition and a number of network detectors for detecting the network situation of the relay judge;

[0050] A control module, which is respectively connected to the timing module, the display module, the data transmission module, and the detection module, is used to determine whether the timing accuracy of the relay judge meets the requirements according to the timing error, and when the determination does not meet the requirements, adjust the power supply voltage of the timing module to a corresponding value according to the display delay difference, or adjust the proportion of the data volume of the wireless data transmission to a corresponding value according to the bandwidth difference, or increase the sensitivity of the touchpad to a corresponding value according to the utilization difference.

[0051] Please refer to Figure 2 As shown, it is a determination flowchart for determining whether the timing accuracy of the relay judge in the embodiment of the present invention meets the requirements. The control module is used to determine whether the timing accuracy of the relay judge meets the requirements according to the timing error. In the embodiment of the present invention, the allowable range of the timing error is [0s, 0.01s], where:

[0052] If the timing error is less than or equal to the preset timing error, it is determined that the timing accuracy of the relay judge meets the requirements; in the embodiment of the present invention, the preferred embodiment of the preset timing error is 0.009s;

[0053] If the timing error is greater than the preset timing error, it is determined that the timing accuracy of the relay judge does not meet the requirements, and the reason is determined according to the display delay;

[0054] The timing error is the absolute value of the difference between the time recorded by the high-speed camera and the time displayed by the timing device.

[0055] Please refer to Figure 3 As shown, it is a determination flowchart for determining the reason why the timing accuracy of the relay judge does not meet the requirements in the embodiment of the present invention. The control module determines the reason why the timing accuracy of the relay judge does not meet the requirements according to the display delay. In practical applications, the human eye cannot recognize the change time of the physical object less than 0.1s, so the delay time of the display device is less than 0.1s. Among them:

[0056] If the display delay is greater than or equal to the preset display delay, it is determined that the reason why the timing accuracy of the relay judge does not meet the requirements is that the operation of the display module does not meet the requirements, and the processing method is determined according to the bandwidth utilization rate of the data transmission module; in the embodiment of the present invention, the preferred embodiment of the preset display delay is 0.08s;

[0057] If the display delay is less than the preset display delay, it is determined that the reason why the timing accuracy of the relay judge does not meet the requirements is that the operation of the timing module does not meet the requirements, and the power supply voltage of the timing module is reduced to a corresponding value according to the display delay difference;

[0058] The display delay is the absolute value of the time difference between the time when the timing device issues a timing and the time when the display screen shows the timing time.

[0059] Specifically, the processing method is determined according to the bandwidth utilization rate. In practical applications, to avoid resource waste and ensure data transmission speed, the bandwidth utilization rate is generally between 70% and 90%. Among them:

[0060] If the bandwidth utilization rate is greater than the preset bandwidth utilization rate, wireless and wired data are used together for data transmission, and the proportion of the data volume transmitted by wireless data is reduced to the corresponding value according to the bandwidth difference; the preferred embodiment of the preset broadband utilization rate is 85%;

[0061] If the bandwidth utilization rate is less than or equal to the preset bandwidth utilization rate, the sensitivity of the touchpad is increased to the corresponding value according to the utilization rate difference;

[0062] The calculation method of the broadband utilization rate is: the current used bandwidth of the relay judge / the total available bandwidth × 100%.

[0063] Specifically, the difference between the bandwidth utilization rate and the preset bandwidth utilization rate is recorded as the bandwidth difference. According to the calculation conditions of the bandwidth utilization rate, the range of the bandwidth difference is (0%, 15%). Considering the actual application scenario and the detection result, it can be known that when the bandwidth utilization rate is higher than 93, the state of the wireless network cannot meet the daily data transmission of the relay judge. Therefore, in the embodiments of the present invention, the optional range of the bandwidth difference is (0%, 8%). The proportion adjustment coefficient is determined according to the ratio of the maximum data volume of the wireless network and wired transmission of the relay judge. In the embodiments of the present invention, the optional range of the proportion of the data volume transmitted by wireless data is (0.55, 1.0]. The reduction amplitude of the proportion of the data volume transmitted by wireless data is determined according to the bandwidth difference. Among them:

[0064] If the bandwidth difference is greater than the preset first-level bandwidth difference, the first proportion adjustment coefficient is used to reduce the proportion of the data volume transmitted by wireless data to the corresponding value; the preferred embodiment of the preset first-level bandwidth difference is 5.75%, and the preferred embodiment of the first proportion adjustment coefficient is 0.60;

[0065] If the bandwidth difference is less than or equal to the preset first-level bandwidth difference and greater than or equal to the preset second-level bandwidth difference, the second proportion adjustment coefficient is used to reduce the proportion of the data volume transmitted by wireless data to the corresponding value; the preferred embodiment of the preset second-level bandwidth difference is 3.52, and the preferred embodiment of the second proportion adjustment coefficient is 0.75;

[0066] If the bandwidth difference is less than the preset second-level bandwidth difference, the third proportion adjustment coefficient is used to reduce the proportion of the data volume transmitted by wireless data to the corresponding value; the preferred embodiment of the third proportion adjustment coefficient is 0.85;

[0067] Specifically, the proportion of the data volume of the wireless data transmission is the ratio of the data volume of the wireless data transmission to the sum of the data volumes of the wireless and wired data transmissions;

[0068] Specifically, the data transmission module uses two methods of wireless data transmission and wired data transmission, and preferentially selects the wireless data transmission mode. At this time, the proportion of the wireless data transmission is 100%. If the second proportion adjustment coefficient is selected, the adjusted proportion of the wireless data transmission is 0.75, and the proportion of the wired data transmission is 0.25.

[0069] Specifically, the increased amplitude of the sensitivity is determined according to the utilization rate difference. According to the calculation conditions of the utilization rate difference, the range of the utilization rate difference is [0, 85]. Similarly, for the consideration of avoiding resource waste and ensuring the data transmission speed, the optional range of the utilization rate difference in the embodiments of the present invention is [0%, 20%]. In the embodiments of the present invention, the initial value of the sensitivity is 0.01 s, where:

[0070] If the utilization rate difference is less than the preset first-level utilization rate difference, use the first adjustment coefficient to adjust the sensitivity to the corresponding value; the preferred embodiment of the preset first-level utilization rate difference is 8%, and the preferred embodiment of the first adjustment coefficient is 0.7;

[0071] If the utilization rate difference is greater than or equal to the preset first-level utilization rate difference and less than or equal to the preset second-level utilization rate difference, use the second adjustment coefficient to adjust the sensitivity to the corresponding value; the preferred embodiment of the preset second-level utilization rate difference is, and the preferred embodiment of the second adjustment coefficient is 0.5;

[0072] If the utilization rate difference is greater than the preset second-level utilization rate difference, use the third adjustment coefficient to adjust the sensitivity to the corresponding value; the preferred embodiment of the third adjustment coefficient is 0.2;

[0073] The utilization rate difference is the difference between the preset bandwidth utilization rate and the bandwidth utilization rate.

[0074] Please refer to Figure 4 As shown, it is the determination flowchart for reducing the power supply voltage of the timer described in the embodiments of the present invention. The reduction amplitude of the power supply voltage of the timer is determined according to the display delay difference. In the embodiments of the present invention, according to the calculation conditions of the display delay difference, the range of the display delay difference is (0 s, 0.08 s]. According to the actual situation, there cannot be an absolute 0 delay. Therefore, the optional range of the display delay difference in the embodiments of the present invention is (0 s, 0.08 s), where:

[0075] If the display delay difference is greater than a preset first - level display delay difference, the power supply voltage is reduced to a corresponding value using a first voltage regulation coefficient; a preferred embodiment of the preset first - level display delay difference is 0.05, and a preferred embodiment of the first voltage regulation coefficient is 0.5;

[0076] If the display delay difference is less than or equal to the preset second - level display delay difference and greater than or equal to the preset second - level display delay difference, the power supply voltage is reduced to a corresponding value using a second voltage regulation coefficient; a preferred embodiment of the preset second - level display delay difference is 0.03, and a preferred embodiment of the second voltage regulation coefficient is 0.65;

[0077] If the display delay difference is less than the preset second - level display delay difference, the power supply voltage is reduced to a corresponding value using a third voltage regulation coefficient; a preferred embodiment of the third voltage regulation coefficient is 0.72;

[0078] The display delay difference is the difference between the preset display delay and the display delay.

[0079] Specifically, the relay judge of the present invention is powered by direct current, and the operating voltage is [12V, 24V]. There is also a limit voltage set in the control module. If the voltage of the timing module is lower than the limit voltage, it is determined that the current timing module does not meet the usage requirements, and a timing module replacement notice is issued. A preferred embodiment of the limit voltage of the relay judge of the present invention is 24V. Therefore, a preferred embodiment of the first voltage regulation coefficient in the embodiments of the present invention is [0.5, 1.0]. It should be noted that the third voltage regulation coefficient is greater than the second voltage regulation coefficient which is greater than the first voltage regulation coefficient when selecting.

[0080] Specifically, there is also a limit sensitivity set in the control module. If the value of the sensitivity of the touchpad after adjustment is lower than the limit value, it is determined that there is a risk of water - wave false touch for the relay judge, and a device failure notice is issued. In the embodiments of the present invention, the limit sensitivity value is 0.001s.

[0081] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present invention.

Claims

1. An ultra-thin swimming start relay judgement device, characterized in that: include: A timing module, including a take-off sensor for sending an electrical signal when taking off, a touch pad for triggering an electrical signal when the athlete reaches the finish line, and a timer for recording the athlete's swimming time; A data transmission module, which is connected to the timing module and is used for data transmission of the relay judgement device; A display module, which is connected to the timing module and the data transmission module respectively, and includes a plurality of display screens; A detection module, which is connected to the data transmission module, includes a plurality of high-speed cameras arranged in the swimming venue for obtaining image information during the competition and a plurality of network detectors for detecting the network of the relay judge; A control module, which is respectively connected to the timing module, the display module, the data transmission module and the detection module, and is used to adjust the power supply voltage of the timing module to a corresponding value according to the display delay difference when it is determined that the timing accuracy of the relay determiner does not meet the requirements according to the timing error, or adjust the proportion of the data volume of wireless data transmission to a corresponding value according to the bandwidth difference, or increase the sensitivity of the touch panel to a corresponding value according to the utilization difference, wherein the timing error is the absolute value of the difference between the time recorded by the high-speed camera and the time displayed by the timing device.

2. The ultra-thin swimming start relay judgement device according to claim 1, characterized in that: The control module is also used to determine whether the timing accuracy of the relay judgement device meets the requirements according to the timing error, wherein: If the timing error is less than or equal to the preset timing error, it is determined that the timing accuracy of the relay judgement device meets the requirements; If the timing error is greater than the preset timing error, it is determined that the timing accuracy of the relay judge does not meet the requirement, and the reason why the timing accuracy of the relay judge does not meet the requirement is determined according to the display delay.

3. The ultra-thin swimming start relay judgement device according to claim 2, characterized in that: The control module determines the reason why the timing accuracy of the relay judgement device does not meet the requirements according to the display delay, If the display delay is greater than the preset display delay, it is determined that the reason why the timing accuracy of the relay judgement device does not meet the requirements is that the operation of the display module does not meet the requirements, and a processing method is determined according to the bandwidth utilization rate; If the display delay is less than or equal to the preset display delay, it is determined that the reason why the timing accuracy of the relay judgement device does not meet the requirement is that the operation of the timing module does not meet the requirement, and the power supply voltage of the timing module is reduced to a corresponding value according to the display delay difference; The display delay is the absolute value of the time difference between the time when the timing device sends out the timing and the time when the display screen displays the timing.

4. The ultra-thin swimming start relay judgement device according to claim 3, characterized in that: Determine the processing method based on bandwidth utilization. If the bandwidth utilization is greater than the preset bandwidth utilization, wireless and wired data are used to transmit data together and the proportion of wireless data transmission is reduced to a corresponding value according to the bandwidth difference; If the bandwidth utilization is less than or equal to the preset bandwidth utilization, the sensitivity of the touch panel is increased to a corresponding value according to the utilization difference.

5. The ultra-thin swimming start relay judgement device according to claim 4, characterized in that: The reduction degree of the proportion of the amount of data transmitted wirelessly is determined according to the bandwidth difference; The bandwidth difference is a difference between the bandwidth utilization and the preset bandwidth utilization.

6. The ultra-thin swimming start relay judgement device according to claim 4, characterized in that: The sensitivity increase is determined based on the utilization rate difference; The utilization difference is a difference between the preset bandwidth utilization and the bandwidth utilization.

7. The ultra-thin swimming start relay judgement device according to claim 3, characterized in that: The reduction range of the power supply voltage of the timer is determined according to the display delay difference; The display delay difference is a difference between the preset display delay and the display delay.

8. The ultra-thin swimming start relay judgement device according to claim 4, characterized in that: The data transmission module adopts two modes of wireless data transmission and wired data transmission, and the wireless data transmission mode is preferably selected.

9. The ultra-thin swimming start relay judgement device according to claim 1, characterized in that: The control module is also provided with a sensitivity limit value. If the sensitivity value of the touch panel after the sensitivity adjustment is lower than the limit value, it is determined that the relay determiner has a risk of being accidentally touched by water waves, and a device failure notification is issued.

10. The ultra-thin swimming start relay judgement device according to claim 1, characterized in that: A limit voltage is also provided in the control module. If the voltage of the timing module is lower than the limit voltage, it is judged that the current timing module does not meet the usage requirements, and a notification for replacing the timing module is issued.

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