CN212482498U - Synchronous acquisition device for different equipment of athlete postures - Google Patents
Synchronous acquisition device for different equipment of athlete postures Download PDFInfo
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- CN212482498U CN212482498U CN202021497502.7U CN202021497502U CN212482498U CN 212482498 U CN212482498 U CN 212482498U CN 202021497502 U CN202021497502 U CN 202021497502U CN 212482498 U CN212482498 U CN 212482498U
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Abstract
The utility model discloses a synchronous acquisition device for different athlete gesture equipment, which comprises at least one group of high-speed camera and a laser velocimeter, wherein the high-speed camera and the laser velocimeter are respectively connected with a trigger starting circuit, a data processing server is respectively connected with a data output interface of the high-speed camera and the laser velocimeter through a data input interface, the data processing server is connected with a synchronous controller, a synchronous pulse signal output by the synchronous controller is connected with the trigger starting circuit, and the pulse width of the synchronous pulse signal triggers the high-speed camera and the laser velocimeter to synchronously work; the utility model discloses can realize that laser tests the speed and the accurate time synchronization of image acquisition, synchronous precision can reach the microsecond level, for laser velocimeter and camera gesture collection provide strict time synchronization, for follow-up data analysis provides accurate time reference, provides powerful data support for promoting sportsman's motion level.
Description
Technical Field
The utility model relates to a synchronous acquisition device of different equipment of sportsman's gesture is high-speed camera and the synchronous acquisition device of laser velocimeter.
Background
In the process of athlete movement, speed and gesture are two important indexes for measuring the movement state of an athlete, in the process of acquiring the movement data of the athlete, speed measurement can accurately measure the movement speed of the athlete, a high-speed camera can accurately capture the movement gesture of the athlete, but in order to better obtain the test effect, the speed measurement and gesture capture must be simultaneously accurate in time synchronization, so that the acquired data can be accurately corresponded, and the movement gesture of the athlete can be accurately analyzed. Currently, only the single synchronization of speed measurement and time or the synchronization of a high-speed camera and time is usually focused, and now to improve the research on the movement of athletes, many movement analyses need to simultaneously capture speed measurement and posture, and the high-speed camera and laser speed measurement need to be simultaneously synchronized with time, so that corresponding equipment is urgently needed to realize the simultaneous synchronization of the high-speed camera and the laser speed measurement and the time.
Disclosure of Invention
An object of the utility model is to provide a synchronous collection system of different equipment of sportsman's gesture is sportsman's speed test and gesture test time synchronizer, for laser velocimeter and camera gesture collection provide strict time synchronization, provide accurate time reference for follow-up data analysis, provide powerful data support for promoting sportsman's motion level.
In order to realize the purpose, the technical scheme of the utility model is that: a synchronous acquisition device for athlete postures different equipment comprises at least one group of high-speed camera and a laser velocimeter, wherein the high-speed camera and the laser velocimeter are respectively connected with a trigger starting circuit, a data processing server is respectively connected with data output interfaces of the high-speed camera and the laser velocimeter through data input interfaces, the data processing server is connected with a synchronous controller, a synchronous pulse signal output by the synchronous controller is connected with the trigger starting circuit, and the pulse width of the synchronous pulse signal triggers the high-speed camera and the laser velocimeter to synchronously work.
The scheme is further as follows: the high-speed cameras and the laser velocimeters are provided with a plurality of groups, the data processing server is provided with a plurality of groups of data input interfaces, and the plurality of groups of data input interfaces are mutually connected with the data output interfaces of the plurality of groups of high-speed cameras and the laser velocimeters.
The scheme is further as follows: the data input interface is respectively connected with a wireless data receiver, the data output interfaces of the high-speed camera and the laser velocimeter are connected with a wireless data transmitter, and the data input interface is respectively in wireless connection with the data output interfaces of the high-speed camera and the laser velocimeter through the wireless data receiver and the wireless data transmitter.
The scheme is further as follows: the synchronous controller is provided with a wireless communication transmitting circuit, the trigger starting circuit is provided with a wireless communication receiving circuit, and the synchronous controller outputs a synchronous pulse signal which is wirelessly connected with the trigger starting circuit through the wireless communication transmitting circuit and the wireless communication receiving circuit.
The scheme is further as follows: the trigger starting circuit comprises an optical coupling isolation circuit and a trigger driving circuit, wherein the input of the optical coupling isolation circuit is connected with a synchronous pulse signal, the output of the optical coupling isolation circuit is connected with the input of the trigger driving circuit, and the output of the trigger driving circuit is connected with a starting switch of the high-speed camera or the laser velocimeter.
The scheme is further as follows: the synchronous pulse signal is a synchronous pulse signal with adjustable pulse width, and the time length of the synchronous switch is adjusted by adjusting the pulse width.
The utility model has the advantages that:
1. the utility model discloses can realize that laser tests the speed and the accurate time synchronization of image acquisition, synchronous precision can reach the microsecond level, for laser velocimeter and camera gesture collection provide strict time synchronization, for follow-up data analysis provides accurate time reference, provides powerful data support for promoting sportsman's motion level.
2. The synchronizer, the laser velocimeter and the camera can be powered by 12V batteries, and can be conveniently applied to outdoor motion attitude test;
3. the synchronizer can provide time synchronization signals of a plurality of paths of laser velocimeters and a plurality of paths of cameras simultaneously, and can acquire the movement speeds and postures of a plurality of athletes simultaneously.
4. The testing frequency and the testing duration of the synchronizer can be flexibly configured, the local postures of the athletes can be continuously grabbed, and the whole postures of the athletes can also be obtained.
The present invention will be described in detail with reference to the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic diagram of the circuit structure of the present invention;
fig. 2 is a schematic diagram of the circuit structure with wireless connection function of the present invention;
fig. 3 is a schematic diagram of the trigger start circuit of the present invention.
Detailed Description
A synchronous acquisition device for different athlete gesture equipment is shown in figure 1, and comprises at least one group of high-speed cameras 1 and laser velocimeters 2, wherein the group of high-speed cameras 1 and the laser velocimeters 2 start and stop synchronously to acquire the movement speed and images of athletes, the figure illustrates a plurality of high-speed cameras 1 and laser velocimeters 2, i.e. the synchronous acquisition device can control a plurality of high-speed cameras 1 and laser velocimeters 2 simultaneously, taking the motion posture collection of the runner as an example, the motion speed of the runner is generally 2-10m/s, a plurality of laser velocimeters are arranged behind the runner side by side, the sports speed of a plurality of athletes can be tested simultaneously, a plurality of cameras are placed on the sides of the running athletes, each camera can test the distance of 10m, and a plurality of cameras are placed at the interval of 10m in the running direction of the athletes and can test the distance of 40 m. The high-speed camera and the laser velocimeter are respectively connected with the trigger starting circuits 3 and 4, the data processing server 5 is respectively connected with the data output interfaces 101 and 201 of the high-speed camera and the laser velocimeter through the data input interfaces 501 and 502, the data processing server is connected with the synchronous controller 6 through a serial port, a synchronous pulse signal output by the synchronous controller is connected with the trigger starting circuits 3 and 4, and the pulse width of the synchronous pulse signal triggers the high-speed camera and the laser velocimeter to synchronously work.
Wherein: the high-speed camera is a large-constant camera of a Mercury company with the model number of MER-030-120GM/GC, and the laser velocimeter is the laser velocimeter with the model number of LDM 301; the processing chip of the synchronous controller is a microprocessor chip with the model number of STM32F103, a synchronous pulse signal is generated by the microprocessor chip according to the command configuration of the data processing server, the frequency and the pulse width of the synchronous pulse can be adjusted, and the adjustment unit is microsecond, so the adjustment precision is microsecond; the time length of the synchronous switch is adjusted by adjusting the width of the synchronous pulse. The data processing server is provided with a plurality of kilomega network ports 501 and a plurality of USB interfaces 502 which are used as data input interfaces corresponding to a plurality of groups of high-speed cameras and laser velocimeters, the data processing server is connected with the high-speed cameras through the kilomega network ports 501, and the data processing server is connected with the laser velocimeters through the USB interfaces 502.
Fig. 1 illustrates a wired connection, in which cables of the wired connection are dragged more, a test area is limited, and a conventional synchronous device memory is based on a data processing server, the size of the server is large, and the movement of the server during the test process causes unnecessary physical energy consumption for the test work. For this purpose, as shown in fig. 2, a wireless connection technical solution of this embodiment is that the data input interface of the data processing server is connected with wireless data receivers 7 and 8, respectively, the data output interfaces of the high-speed camera and the laser velocimeter are connected with wireless data transmitters 9 and 10, and the data input interface and the data output interfaces of the high-speed camera and the laser velocimeter are wirelessly connected with the wireless data transmitters 9 and 10 through the wireless data receivers 7 and 8, respectively; meanwhile, the synchronous controller 6 is provided with a wireless communication transmitting circuit 601, the trigger starting circuits 3 and 4 are provided with wireless communication receiving circuits 301 and 401, and the synchronous controller outputs synchronous pulse signals which are wirelessly connected with the trigger starting circuits through the wireless communication transmitting circuit 601 and the wireless communication receiving circuits 301 and 401.
In order to prevent interference, the trigger starting circuit adopts photoelectric isolation, as shown in fig. 3, the trigger starting circuit includes an optical coupling isolation circuit 302 and a trigger driving circuit 303, the trigger driving circuit 303 outputs a driving voltage through a triode D, and may be used as a driving power source for conversion, for example: the switch driving voltage of the high-speed camera and the laser velocimeter is 12V, so that the power supply voltage VCC triggering the driving circuit 303 can select a 12V power supply, the input end A of the optical coupling isolation circuit is connected with a synchronous pulse signal, the output end B of the optical coupling isolation circuit is connected with the input of the triggering driving circuit, and the output end C of the triggering driving circuit is connected with a starting switch of the high-speed camera or the laser velocimeter.
Claims (6)
1. A synchronous acquisition device for athlete different-posture equipment comprises at least one group of high-speed camera and a laser velocimeter, and is characterized in that the high-speed camera and the laser velocimeter are respectively connected with a trigger starting circuit, a data processing server is respectively connected with data output interfaces of the high-speed camera and the laser velocimeter through data input interfaces, the data processing server is connected with a synchronous controller, a synchronous pulse signal output by the synchronous controller is connected with the trigger starting circuit, and the pulse width of the synchronous pulse signal triggers the high-speed camera and the laser velocimeter to synchronously work.
2. The synchronous acquisition device for different equipment according to claim 1, wherein the high-speed cameras and the laser velocimeters have a plurality of groups, the data processing server is provided with a plurality of groups of data input interfaces, and the plurality of groups of data input interfaces are mutually connected with the data output interfaces of the plurality of groups of high-speed cameras and the laser velocimeters.
3. The synchronous acquisition device for different equipment according to claim 1 or 2, wherein the data input interface is connected with a wireless data receiver, the data output interfaces of the high-speed camera and the laser velocimeter are connected with a wireless data transmitter, and the data input interface is wirelessly connected with the data output interfaces of the high-speed camera and the laser velocimeter through the wireless data receiver and the wireless data transmitter.
4. The synchronous acquisition device for different equipment according to claim 3, wherein the synchronous controller is provided with a wireless communication transmitting circuit, the trigger starting circuit is provided with a wireless communication receiving circuit, and the synchronous controller outputs a synchronous pulse signal which is wirelessly connected with the trigger starting circuit through the wireless communication transmitting circuit and the wireless communication receiving circuit.
5. The synchronous acquisition device for different equipment according to claim 1, wherein the trigger starting circuit comprises an optical coupling isolation circuit and a trigger driving circuit, the input of the optical coupling isolation circuit is connected with the synchronous pulse signal, the output of the optical coupling isolation circuit is connected with the input of the trigger driving circuit, and the output of the trigger driving circuit is connected with a starting switch of the high-speed camera or the laser velocimeter.
6. The synchronous acquisition device for different equipment according to claim 1, wherein the synchronous pulse signal is a synchronous pulse signal with adjustable pulse width, and the time length of the synchronous switch is adjusted by adjusting the pulse width.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021497502.7U CN212482498U (en) | 2020-07-27 | 2020-07-27 | Synchronous acquisition device for different equipment of athlete postures |
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| CN202021497502.7U CN212482498U (en) | 2020-07-27 | 2020-07-27 | Synchronous acquisition device for different equipment of athlete postures |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114599132A (en) * | 2022-05-09 | 2022-06-07 | 中国工程物理研究院流体物理研究所 | Imaging illumination light source driving pulse generation device and photographic illumination device |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114599132A (en) * | 2022-05-09 | 2022-06-07 | 中国工程物理研究院流体物理研究所 | Imaging illumination light source driving pulse generation device and photographic illumination device |
| CN114599132B (en) * | 2022-05-09 | 2022-07-29 | 中国工程物理研究院流体物理研究所 | Imaging illumination light source driving pulse generation device and photographic illumination device |
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