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Acousto-optic automatic target reporting system

An automatic, acousto-optic technology, applied in target indication systems, targets, offensive equipment, etc., can solve the problems of undiscovered reports or documents, achieve flexible and convenient deployment, reduce manufacturing costs, and reduce machining accuracy.

Inactive Publication Date: 2010-09-22
XIAN TECHNOLOGICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the formula for calculating the coordinates of the impact point given in US4885725 can eliminate the influence of sound propagation velocity, it uses plane waves to replace the circular arc surface when the shock wave reaches the microphone, which will bring measurement errors
[0004] The project team of this invention has searched domestic and foreign patent documents and published journal papers, and has not found any reports or documents closely related to the present invention.

Method used

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  • Acousto-optic automatic target reporting system
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  • Acousto-optic automatic target reporting system

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Embodiment 1: see figure 1 , the present invention is an acousto-optic automatic target reporting system, comprising: a detection light curtain L, an amplifying circuit, a data acquisition device, a coordinate calculation unit and a display part, and the present invention also includes a microphone array, and the detection light curtain L and the microphone array simultaneously The flying projectile is measured, and the captured signals are transmitted to the data acquisition device through their respective amplifiers, and the target information of the measured flying projectile is given; when the supersonic flying projectile passes through the detection light curtain, the detection light curtain outputs a trigger pulse to make The data acquisition device starts to work, and then the shock wave signal generated by the supersonic flying projectile is detected by the microphone array and outputs a corresponding signal. According to the time value of each microphone in the...

Embodiment 2

[0031] Embodiment 2: the main body constitutes the same as embodiment 1, see figure 1 .

[0032] The sound and light automatic target reporting system has two microphone arrays, and each microphone array is composed of three microphones. Microphone S1, microphone S2, and microphone S3 form the first microphone array, and microphone S4, microphone S5, and microphone S6 form the second microphone array. , the two microphone arrays are in the same plane as the detection light curtain L.

[0033] The invention has no special requirements on the position of the microphone in the sound array, which greatly reduces the installation requirements of the microphone and the machining precision of the microphone fixing device, and reduces the manufacturing cost of the whole system.

Embodiment 3

[0034] Embodiment 3: The composition of the main body is the same as in Embodiment 2. The layout of the two microphone arrays of the automatic target reporting system is: the connection line of the three microphones is a triangle, and the arrangement rule of the microphones is that the three microphones are arranged around the center point of the array, and the three microphones are arranged around the center point of the array. The wiring of the microphones forms a triangular combination array. see figure 2. In this example, the triangle of the microphone array is a regular triangle. In the first microphone array, microphone S1, microphone S2, and microphone S3 are located around the center point 01 of the array, all of which are equidistant from the center point 01 of the array. The connection of microphone S1, microphone S2, and microphone S3 Lines form regular triangle combinations.

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Abstract

The invention discloses an acousto-optic automatic target reporting system for measuring landing coordinates of supersonic flight pills. The system is composed of a detecting light curtain, two microphone arrays, a data acquisition device, a coordinate computing unit and a display part, wherein the detecting light curtain can be a passive light curtain or an active light curtain and is coincidentwith a predetermined target surface; and the two microphone arrays respectively comprise three microphones, wherein S1, S2 and S3 form one array, S4, S5 and S6 form the other array, and the three microphones in each array can be freely arranged around a center O1 or O2. The invention overcomes the error caused by substituting a local sound propagation speed when coordinates are computed by the existing acoustic target reporting system, is favorable for reducing the machining accuracy of the target reporting system, overcomes the defect that the existing acoustic targets have strict requirements for the installing positions of the microphones, and obviously reduces the manufacturing cost of the measuring system. The measuring system of the invention has the advantages of compact structure and simple target arrangement.

Description

technical field [0001] The invention belongs to the technical field of automatic target reporting in weapon shooting ranges, and mainly relates to an acousto-optic automatic target reporting device, in particular to an acousto-optic automatic target reporting system suitable for automatic measurement of the impact point of a target for live ammunition shooting. Background technique [0002] In the shooting training of shooting entertainment, army, public security department and the competition, the statistical method of shooting performance has artificial target reporting and automatic target reporting. Manual target reporting is the most traditional and primitive method, which has many disadvantages, such as personal subjectivity, difficulty in identifying heavy holes, time-consuming and laborious, and certain dangers. With the advancement of technology, various automatic target reporting technologies continue to emerge. Automatic target reporting overcomes the disadvantage...

Claims

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Application Information

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IPC IPC(8): F41J5/02F41J5/06
Inventor 冯斌倪晋平田会马时亮
Owner XIAN TECHNOLOGICAL UNIV
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