CN202432925U - Target reporting system based on width of pill shock wave - Google Patents

Abstract

The utility model discloses a target reporting system based on a width of a pill shock wave and relates to a shock wave target reporting system based on the width of the pill shock wave, which is mainly used for achieving a precise target reporting function during firing practice of supersonic speed pills such as a rifle, a machine gun, a sniper rifle, a direct-aim artillery and the like. The target reporting system comprises a signal collector, a display terminal and a target surface, wherein the signal collector comprises a shock wave sensor array and a micro-processing plate; the shock wave sensor array comprises a shock wave sensor Q1, a shock wave sensor Q2, a shock wave sensor Q3, a shock wave sensor Q4 and a shock wave sensor Q5, which are arranged in a non-collinear manner; the shock wave sensor array is located at the bottom of a target plane, and the signal output end of the shock wave sensor array is connected with the input end of the micro-processing plate; the micro-processing plate comprises an amplifying circuit, a comparison circuit, a pulse signal width measuring circuit and a DSP (Digital Signal Processor) processing circuit; and the display terminal is a computer provided with a display program.

Description

Hit telling system based on bullet shock wave width

Technical field

The utility model relates to the shock wave target-reading system based on bullet shock wave width based on the hit telling system of bullet shock wave width, is mainly used in rifle, machine gun, sniper rifle, realizes precision indication of shots function when directly taking aim at supersonic projectile ball firing such as cannon.

Background technology

Chinese patent discloses " shock wave target-reading system " (publication number CN 1967136A) and " intelligence location hit telling system " (publication number CN1462864A) arrives the localization method of a plurality of sensor time difference based on the bullet shock wave; This method does not make full use of bullet shock wave characteristic information; Require bullet vertical incidence target surface, seriously limited the live shell tactical fire and used.

Summary of the invention

The utility model purpose is to above-mentioned weak point a kind of hit telling system based on bullet shock wave width to be provided; The bullet shock wave width that records according to each Shock Wave Sensors calculates each Shock Wave Sensors and trajectory linear distance; Through analytic calculation pill impacting position, be applicable to target surface live shell tactical fire is trained then.

The utility model takes following technical scheme to realize based on the hit telling system of bullet shock wave width:

Hit telling system based on bullet shock wave width is made up of signal picker, display terminal and target surface: signal picker is made up of Shock Wave Sensors array, little disposable plates etc.; Shock Wave Sensors Q1, Shock Wave Sensors Q2, Shock Wave Sensors Q3, Shock Wave Sensors Q4, Shock Wave Sensors Q5 that the Shock Wave Sensors array is laid by 5 non-colinears form.The Shock Wave Sensors array is positioned at the bottom on target plane, and its signal output part connects little disposable plates input.Little disposable plates comprises amplifying circuit, comparison circuit, pulse signal width measuring circuit and DSP treatment circuit etc.Display terminal is the computer that display routine is installed.

The signal output part of the Shock Wave Sensors Q1 of 5 non-colinear layings, Shock Wave Sensors Q2, Shock Wave Sensors Q3, Shock Wave Sensors Q4, Shock Wave Sensors Q5 links to each other with little disposable plates through holding wire in the said Shock Wave Sensors array, and little disposable plates output links to each other with the computer of display terminal.

The utility model technology beneficial effect:

The utility model adopts Shock Wave Sensors to measure bullet shock wave width, calculates pill impacting section track according to formula then, through analytic calculation pill impacting position, thereby realizes precision indication of shots function.Require bullet vertical incidence target surface than " shock wave target-reading system " (publication number CN 1967136A) and " intelligence location hit telling system " (publication number CN1462864A); The utility model is applicable to the arbitrarily angled incident target surface of bullet; To weapon incident target surface direction calibration, be more suitable in the tactical fire training before not only need not to use weapon oblique fire indication of shots.

Description of drawings

Below will combine accompanying drawing that the utility model is described further:

Fig. 1 is the principle schematic of the utility model.

Fig. 2 is the bullet shock-Wave Signal figure of the utility model sensor acquisition.

Fig. 3 is that the utility model shot orbit calculates sketch map.

The specific embodiment

With reference to accompanying drawing 1～3, be made up of signal picker 1 and display terminal 2, target surface 3 based on the hit telling system of bullet shock wave width: signal picker is made up of Shock Wave Sensors array 4, little disposable plates 5 etc.; Shock Wave Sensors Q1, Shock Wave Sensors Q2, Shock Wave Sensors Q3, Shock Wave Sensors Q4, Shock Wave Sensors Q5 that the Shock Wave Sensors array is laid by 5 non-colinears form.Shock Wave Sensors array 4 is positioned at the bottom on target plane, and its signal output part connects little disposable plates input.Display terminal is the computer that display routine is installed, and is connected with signal picker, receives the signal picker data and carries out the point of impact demonstration.

The signal output part of the Shock Wave Sensors Q1 of 5 non-colinear layings, Shock Wave Sensors Q2, Shock Wave Sensors Q3, Shock Wave Sensors Q4, Shock Wave Sensors Q5 links to each other with little disposable plates 5 through holding wire in the said Shock Wave Sensors array, and little disposable plates output links to each other with the computer of display terminal.

Based on the hit telling system of bullet shock wave width, it is characterized in that the deration of signal value of Shock Wave Sensors array collection bullet shock wave through each sensor, obtain each Shock Wave Sensors and trajectory linear distance, then through analytic calculation pill impacting position.

Described a kind of hit telling system based on bullet shock wave width can be obtained bullet incident target surface slope, does not require the vertical target surface incident of trajectory line, is applicable to live shell tactical fire training use.

The Shock Wave Sensors array adopts piezoelectric pressure indicator, frequency range 1Hz～40kHz, and range ability 0～250kPa, the rise time, overload capacity was not less than 2000g less than 2us, can accurately measure the bullet shock-Wave Signal.

The amplifying circuit of little disposable plates adopts the rate of climb to be not less than 10V/us, and the long-pending high speed amplifier that is not less than 4MHz of gain is not less than 1000 times to piezoelectric pressure indicator output voltage of signals gain amplifier; Give the high speed comparison circuit of delay less than 80ns; Produce pulse signal and give the time measuring circuit of programming device design, measure each road time pulse signal width, give DSP and resolve; Calculate hit location, be transferred to computer through wired or wireless mode then and show.

Operation principle:

(1) when bullet skims over the Shock Wave Sensors array, each Shock Wave Sensors is experienced the bullet shock-Wave Signal of certain hour length, with reference to Fig. 2, signal waveform be similar to letter " N", be also referred to as " N ripple ".Little disposable plates is amplified, after filtering and the comparison, is measured each shock-Wave Signal width then the signal of Shock Wave Sensors output.

(2) the projectile shock width

and the shock sensor to the projectile trajectory distance

has the formula:

（1）

Wherein

is projectile form factor; is the velocity of sound;

is the bullet Mach number;

is caliber, and

is long for bullet.

Arrangement can get:

（2）

Promptly is directly proportional with 4 powers of

, wherein

is designated as unknown quantity

.With reference to accompanying drawing 3, doing with target surface XOYThe plane, vertical target surface does ZIn the coordinate system of axle, known nIndividual probe coordinate position

, ...,

, and record nThe pulse wave duration of individual probe ,

...,

, suppose the coordinate of the bullet point of impact

, BOn target surface, get Be zero.Bullet incident space line equation is:

（3）

Make

, then (3) formula is rewritten as:

（4）

I.e. (5)

Wherein

, the distance that then the trajectory line is popped one's head in

relatively is:

（6）

Hit under the target surface situation at bullet; Track can not be parallel to target surface; Promptly

is non-vanishing; Then (6) formula is simultaneously divided by

; That is:

is converted into

, is converted into

,

,

,

,

five unknown numbers.

Through five sensor arraies are measured , can list a set of equations:

(7)

According to formula (7), DSP can solve five unknown numbers, obtains near the trajectory line equation of bullet landing point coordinates and target surface.

In actual use, it is straight directly to take aim at the weapon trajectory usually, is ignoring under the bullet vertical incidence angle case, promptly in (4) formula bGet zero, only exist

,

, ,

Four unknown numbers adopt four sensors can obtain the bullet landing point coordinates.

If in the shooting site environment, the shooting position is over against target surface, and shot orbit and target surface near normal are promptly in (4) formula a, bAll get zero, only exist ,

, Three unknown numbers, adopting not, three sensors of conllinear can obtain the bullet landing point coordinates.

Claims (3)

1. hit telling system based on bullet shock wave width, it is characterized in that: be made up of signal picker, display terminal and target surface: signal picker is made up of Shock Wave Sensors array, little disposable plates; Shock Wave Sensors Q1, Shock Wave Sensors Q2, Shock Wave Sensors Q3, Shock Wave Sensors Q4, Shock Wave Sensors Q5 that the Shock Wave Sensors array is laid by 5 non-colinears form; The Shock Wave Sensors array is positioned at the bottom on target plane, and its signal output part connects little disposable plates input; Little disposable plates comprises amplifying circuit, comparison circuit, pulse signal width measuring circuit and DSP treatment circuit; Display terminal is the computer that display routine is installed.

2. a kind of hit telling system according to claim 1 based on bullet shock wave width; It is characterized in that: the signal output part of the Shock Wave Sensors Q1 of 5 non-colinear layings, Shock Wave Sensors Q2, Shock Wave Sensors Q3, Shock Wave Sensors Q4, Shock Wave Sensors Q5 links to each other with little disposable plates through holding wire in the said Shock Wave Sensors array, and little disposable plates output links to each other with the computer of display terminal.

3. a kind of hit telling system according to claim 1 based on bullet shock wave width; It is characterized in that: the Shock Wave Sensors array adopts piezoelectric pressure indicator; Frequency range 1Hz～40kHz, range ability 0～250kPa, the rise time is less than 2us; Overload capacity is not less than 2000g, can accurately measure the bullet shock-Wave Signal.

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