JPH05142330A - Firing practice device - Google Patents

Abstract

PURPOSE:To correct the computing of a bullet transit course simply and accurately without need of such as complicated preparations, by performing the correction by using sound signals from a sound signal generating part set near a target. CONSTITUTION:Supersonic waves are emitted from a sound signal generating part 3 positioned at a sound source generating point 10 near impulse wave sensors S1-S4 arranged near a target to detect supersonic waves from the resonating sensors S1-S4. The set position of the sound signal generating part 3 can be computed according to the time difference of the supersonic waves detected from the sensors S1-S4, and the computing errors can be also detected as the actual position of the generating part 3 are predetermined. Consequently, according to the computing errors, correction of a measuring circuit 5 of delay time difference of waveform output from sensors is performed. In this constitution, correction of the computing of the bullet transit course can be performed by using sound signals from the generating part 3 set near the target, that is, near the sensors S1-S4, instead of using a service ammunition.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shooting training apparatus, and more particularly to a means for obtaining a passing position of an elastic force that penetrates a target by calculating outputs of a plurality of shooting wave sensors arranged near the target. Shooting training device.

[0002]

2. Description of the Related Art A shooting training device constructed in this way is
Even when shooting at a distance from the target, it is possible to immediately recognize the passing position of the elasticity with respect to the target without approaching the target.

However, in order to accurately calculate the passing position of the bullet, it is necessary to correct the calculation depending on the case. In the past, when performing such a correction, a so-called actual shot firing test was performed in advance, and the correction was performed based on the result of this actual shot firing.

[0004]

However, there is a problem that the conventional live-fire test can be performed only by a person authorized in a specific place due to the restriction of Japanese law. For this reason, it has been necessary to carry out the troublesome preparation such as transporting the shooting training device itself to a specific place and preparing a person who is qualified to fire an actual shot.

Therefore, the present invention has been made in view of the above circumstances, and the purpose thereof is to calculate extremely easily a bullet passing position without requiring any troublesome preparation. It is to provide a shooting training device that can realize accurate correction of

[0006]

In order to achieve such an object, the present invention basically enters into a target by calculating respective outputs of a plurality of shock wave sensors arranged in the vicinity of the target. In an impact training device equipped with means for determining the passing position of a bullet, the acoustic signal generator is positioned, and the calculation is rectified by the output of each shock wave sensor that detects the sound from the acoustic signal generator. It is characterized by comprising the means described above.

[0007]

According to the shooting training device having the above-described structure, the sound generated by the sound generating unit located near the target corrects the calculation for obtaining the passing position of the bullet instead of the conventionally used actual bullet. You will be able to do it.
Therefore, it is possible to realize an accurate correction of the calculation for obtaining the passing position of the bullet extremely easily without requiring any troublesome preparation.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a circuit diagram showing an embodiment of an attack sound generating device newly provided in a shooting training device according to the present invention. In the figure, there is a function generator 1, and a signal composed of a sine wave having a frequency of 500 KHz, for example, is output from the function generator 1. Where the frequency of the signal is 5
The shock wave sensor S, which will be described later, is set to 00 KHz.
This is because the resonance frequencies of 1, S2, S3, and S4 are matched.

The signal from the function generator 1 is amplified by the amplifier 2 and input to the acoustic signal generator 3. This acoustic signal generator 3
For example, by driving a piezoelectric element, the frequency is 500 KHz
It is designed to generate ultrasonic waves.

Further, the amplifier 2 is provided with an amplifier gain control circuit 4, and the amplifier gain control circuit 4 can control the magnitude of the acoustic signal from the acoustic signal generating section 3.

On the other hand, as shown in FIG. 2, four shock wave sensors S are provided in the vicinity of the target and on the plane orthogonal to the target.
1, S2, S3 and S4 are arranged. That is, immediately before the bullet enters the target, the velocity of the bullet is calculated by the time difference of shock wave detection by the shock wave sensors S1 and S2, and the bullet speed is calculated by the time difference of shock wave detection by the shock wave sensors S3 and S4. The passing position of is calculated.

The calculation of the velocity and the passing position of the bullet is performed by the sensor output waveform delay time difference measuring circuit 5 to which the respective outputs of the shock wave sensors S1, S2, S3 and S4 are input.

Although not shown, the sensor output waveform delay time difference measuring circuit 5 can calibrate the calculation result based on the detected error. This calibration is performed, for example, by adjusting the comparator volume.

The acoustic signal generator 3 in each of the impact sound generators described above is located at the sound source generating position 10 in FIG. The shock training device configured as described above is provided with the sensor output waveform delay time difference measuring circuit 5
In order to correct the above, it becomes possible to drive the impact noise generating device shown in FIG.

That is, the shock wave sensors S1, S2, S
If ultrasonic waves are emitted from the acoustic signal generator 3 arranged in the vicinity of S3 and S4, the shock wave sensors S1, S2, S3, and S4 that resonate at the frequency of the ultrasonic waves can detect the ultrasonic waves. become. Then, each shock wave sensor S1, S
The detection of ultrasonic waves in S2, S3, and S4 causes a time lag of Δt1, Δt2, and Δt3, as shown in FIG.

Therefore, the location of the acoustic signal generator 3 can be calculated from these time lags. However, since the location of the acoustic signal generator 3 is known in advance, the calculation error is also known. Like Therefore, the sensor output waveform delay time difference measuring circuit 5 can be calibrated based on this calculation error.

According to the above-described embodiment, the sound generated by the sound generating unit 3 located near the target is used to calibrate the calculation of the passing position of the bullet instead of the conventionally used actual bullet. Will be able to. For this reason, it is possible to realize the accurate correction of the calculation for obtaining the passing position of the bullet extremely easily without requiring any troublesome preparation.

In the above-mentioned embodiment, the shock wave sensor has been described as having four shock absorbers, but the number of shockwave sensors is not limited to this and may be any plural number. In addition, as the acoustic signal generator 3, it is needless to say that the acoustic signal generator 3 may be one that uses high voltage to cause discharge breakdown and utilizes the sound generated at this time.

[0019]

As is clear from the above description,
According to the impact training device of the present invention, it is possible to realize accurate correction of the calculation for obtaining the passing position of the bullet extremely easily without requiring any troublesome preparation.

[Brief description of drawings]

FIG. 1 is a circuit diagram showing an embodiment of an impact sound generating device included in a shooting training device according to the present invention.

FIG. 2 is a block diagram showing an embodiment of a shock wave sensor in the shock training device according to the present invention and a device for calculating a passing position of a bullet based on an output from the sensor.

FIG. 3 is an explanatory diagram illustrating that a time lag occurs in the output from each shock wave sensor.

[Explanation of symbols]

 1 Function generator 2 Amplifier 3 Acoustic signal generator

Claims (1)

[Claims] 1. A shooting training device provided with a means for obtaining a passing position of an elastic force that penetrates into a target by calculating respective outputs of a plurality of shooting wave sensors arranged in the vicinity of the target,
Shooting training, characterized in that the acoustic signal generator is positioned in the vicinity of the target, and means for rehabilitating the calculation by the output of each shock wave sensor for detecting the sound from the acoustic signal generator is provided. apparatus.