JPH0773615B2 - Exercise form checker - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an exercise form checker that allows an athlete of any sport to check the exercise form immediately after playing.

[Conventional technology]

When practicing various sports, use a mirror, video camera, video tape recorder, etc. to visually check the exercise form (eg, golf swing) at the same time as it is played or after a while. May be adopted.

[Problems to be solved by the invention]

However, when looking at the mirror and checking the form, it is necessary to always keep the eyes on the mirror, and in practice, it is difficult to hit a golf ball, for example. It may cause collapse. Also, when using a video camera and a video tape recorder, it can be confirmed only after rewinding or cueing, so immediately after play, the memory of the series of movements remembered by the body is also lost. Therefore, it becomes possible to visually check it, and there is a problem that it cannot be said that it is a very effective means for checking the exercise form.

The present invention was devised in view of the above problems of the prior art, and the player checks the exercise form immediately after playing and while the body remembers a series of movements of the exercise form. It is intended to provide a device capable of doing so.

[Means for solving problems]

Therefore, the exercise form checker of the present invention captures the exercise form of a sports athlete as a video signal, inputs it as a video signal, stores it in a memory after A / D conversion, and takes it out from the memory after a set time elapses and then D A / A conversion is performed and the video signal is reproduced visually.

As a premise, the basic features of the present invention will be described with reference to FIG.
A more specific description using (b) is as follows.

That is, the athlete's exercise form is captured by the video camera (1), the video signal is converted to a digital data signal by the A / D converter (2), and the data demultiplexer is used to convert the video signal to a digital data signal as shown in FIG. The digital data signal is stored in the memory group X (3a). Then, as shown in FIG. 9B, the input destination of the digital data signal is switched to the memory group Y (3b) by the data demultiplexer. On the other hand, the digital data signal stored in the memory group X (3a) is taken out by the data multiplexer to the D / A converter (4) after being delayed by a preset delay time and converted into an analog video signal again. , Is played on the TV monitor (5). At this time, the memory group XY (3
a) If the storage capacity of (3b) is adjusted, while the memory group X (3a) is storing signals by the data demultiplexer, the memory group Y (3b) is stored by the data multiplexer.
From the memory group X (3a) by the data multiplexer while the memory group Y (3b) is being stored by the data demultiplexer. By alternately repeating a plurality of memory groups using a multiplexer and a data demultiplexer, it is possible to delay and display a continuous image.

〔Example〕

 Specific examples of the present invention will be described below.

FIG. 2 is a circuit diagram showing the circuit configuration of the golf swing checker device of the present invention.

The apparatus of this embodiment is roughly classified into a video signal input circuit A for capturing an image, a memory circuit B for signal storage having a special circuit configuration (a data multiplexer and a data demultiplexer described later) in a signal input / output unit, A reproduction circuit C for reproducing the signal taken out from the memory circuit B as an image and a control circuit D for executing a storage operation control command of an input signal of the memory circuit B and a signal output control command according to a set delay time. Have

The video signal input circuit A includes a video camera (10), A /
The video camera (10) captures the golf swing of the golfer, and the A / D converter (20) converts the video signal into a digital data signal.

The memory circuit B includes a distribution amplifier (30) which is a data demultiplexer, video memory groups (31a) to (31e), and a matrix switcher (32) which is a data multiplexer. ) Is the A / D converter (2
The digital data signal converted in (0) is branched according to the number of video memory groups (31a) to (31e), and the same signal is simultaneously output to these video memory groups (31a) to (31e). Further, the matrix switcher (32) is connected to the output side of the video memory groups (31a) to (31e) and switches the signal extraction from each of the memory groups (31a) to (31e). In each of the video memory groups (31a) to (31e), the storage operation of the input signal from the distribution amplifier (30) side is controlled by a control command of the control circuit D described later, and the input signals are simultaneously input to each memory group. Of the incoming digitally converted data signals, the signals that make up the first and second screens are stored in the video memory group (31a), and the signals of the third and fourth screens are stored in the video memory group (31b). ) Is stored in each video memory group (31a) to (31e) as a digital signal. Similarly, switching of digital data signal extraction from the video memory groups (31a) to (31e) by the matrix switcher (32) is also controlled by the control command of the control circuit D, and the first screen from the video memory group (31a) and The signals of the second screen are taken out, then the signals are switched to the video memory group (31b), and then the signals of the third screen and the fourth screen are taken out from the video memory group (31b).

The reproduction circuit C includes a D / A converter (40) for converting a digital data signal into an analog signal, and a TV monitor (50) for reproducing an analog video signal as an image.
The D / A converter (40) converts the digital data signals sequentially output from the video memories (31a) to (31e) by the matrix switcher (32) into analog video signals, and further the TV monitor (50). Will play this as an actual video.

The control circuit D includes a CPU (60) having a delay time setting interface (61), and a storage operation control command of an input signal from the CPU (60) to each of the video memory groups (31a) to (31e). Video memory side interfaces (62a) to (62e) for outputting the video memory groups and the video memory groups (31a) to (3a) from the CPU (60) to the matrix switcher (32).
And a matrix switcher side interface (63) for instructing switching of digital signal extraction from 1e). The CPU (60) is connected to the CPU (60) via the delay time setting interface (61).
A sequence is automatically formed based on the delay time set in itself, and a storage operation control command for each video memory group (31a) to (31e) and a signal extraction switching control command for the matrix switcher (32) are output. That is, this CP
U (60) is the distribution amplifier (30)
Of the digital data signals that are simultaneously input to all the memory groups that have been branched in step 1, each of the video memory groups (31a) to (31a)
The control commands for individually instructing e) at which time to store are output via the interfaces (62a) to (62e). Similarly, in the CPU (60), the matrix switcher (32) has video memory groups (31a) to (31e).
When each digital signal is extracted from the video memory group (31a) to (3a) after the set delay time elapses.
A memory switching control command for signal extraction is output to the matrix switcher (32) so that signals can be sequentially extracted from 1e).

Since the present embodiment has the above configuration, the video signal of the golf swing of the golfer captured by the video camera (10) is converted into a digital data signal by the A / D converter (20) and further distributed. Amplifier (30)
And the same signal is simultaneously sent to all video memory groups (31a) to (31e). On the other hand, the CPU (60) automatically forms a sequence based on the delay time set by the delay time setting interface (61), and digital conversion is performed for each video memory group (31a) to (31e). Command when to store each data signal,
Further, after the delay time has elapsed, a memory switching command for outputting signals from the video memories (31a) to (31e) by the matrix switcher (32) is output to the matrix switcher (32). The digital data signal extracted by this matrix switcher (32) is D / A.
It is converted into an original analog video signal by the converter (40) and reproduced as an image by the TV monitor (50).

When performing special recording such as strobe recording (intermittent recording) or slow motion recording, it is advisable to change the sequence of memory side memory control by the CPU (60) and signal extraction control by the matrix switcher (32). That is, in the case of flash recording, the output timing of the storage control command is set large for each of the video memory groups (31a) to (31e), and one signal is taken out from the video memory group by the matrix switcher (32). It may be performed by thinning out every other time (in this case, it is necessary to increase the capacity of the video memory groups (31a) to (31e)). For slow-motion recording, increase the capacity of the video memory groups (31a) to (31e) and add the CPU (6
It is preferable to increase the number of video recording screens by narrowing the output timing of the storage control command between the video memory groups (31a) to (31e) from (0).

In addition, this golf swing checker has a loop repeat function by changing the sequence of the CPU (60) as needed, and you can repeat the scene you want to watch as many times as you want.

〔The invention's effect〕

According to the exercise form checker of the present invention detailed above,
The data multiplexer and data multiplexer are used to delay for a preset time, and the exercise form is automatically reproduced as an image on a TV monitor, etc. Not only the visual form check but also the athlete himself. It becomes possible to check the form, and it becomes possible to check the form while the athlete's body remembers the series of movements, and it is possible to dramatically improve the practice effect.

[Brief description of drawings]

FIGS. 1 (a) and 1 (b) are explanatory views showing the device structure of the present invention in a more specific state, and FIG. 2 is a circuit diagram showing the circuit structure of a golf swing checker according to an embodiment of the present invention. . In the figure, (1) and (10) are video cameras, and (2) and (20) are A / D.
Converter, (3a) (3b) are memory groups, (31a) (31b)
(31c) (31d) (31e) are video memory groups, (30) is a distribution amplifier, (32) is a matrix switcher, (4) and (40) are D / A converters, (5) (5)
0) shows a TV monitor, and (60) shows a CPU.

Claims (1)

[Claims] 1. A sports athlete's exercise form is visually captured and input as a video signal, and after A / D conversion, a digital data signal is stored in a memory, and this digital data signal is stored after a lapse of a set time. Remove it from memory and press D /
In the motion form checker that A-converts and reproduces the video signal visually, use a data multiplexer and a data demultiplexer to sequentially store digital data signals in a plurality of memory groups, and after this time has elapsed, this digital data signal is stored. Is sequentially output from the memory group.