CN106814368A - Pill impacting coordinate measuring device and measuring method based on laser distance measuring principle - Google Patents
Pill impacting coordinate measuring device and measuring method based on laser distance measuring principle Download PDFInfo
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- CN106814368A CN106814368A CN201710045926.6A CN201710045926A CN106814368A CN 106814368 A CN106814368 A CN 106814368A CN 201710045926 A CN201710045926 A CN 201710045926A CN 106814368 A CN106814368 A CN 106814368A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/46—Indirect determination of position data
- G01S17/48—Active triangulation systems, i.e. using the transmission and reflection of electromagnetic waves other than radio waves
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
本发明属于靶场测试技术领域，具体涉及一种基于激光测距原理的弹丸着靶坐标测量装置及其测试方法，解决现有技术存在的测量误差大、系统复杂、测量靶面小、系统容易受环境干扰等问题，本发明采用的技术方案由第一激光测距仪、第二激光测距仪、坐标原点指示器、靶架水平状态指示水泡，支撑靶架、供电及信号处理装置组成，所述两个激光测距仪的激光光源是扇形一字线型半导体激光器，其发光角度均为140°，且两个扇形一字线型光源的发光光幕在空间重合，两个激光测距仪对称设置于系统坐标原点指示器的两侧，通过测量穿越探测光幕面的弹丸与两个激光测距仪的距离，基于三角形几何模型求解弹丸着靶坐标。
The invention belongs to the technical field of shooting range testing, and in particular relates to a projectile landing coordinate measuring device based on the principle of laser ranging and a testing method thereof, which solve problems in the prior art such as large measurement error, complex system, small measurement target surface, and easy damage to the system. Environmental interference and other problems, the technical solution adopted by the present invention is composed of a first laser range finder, a second laser range finder, a coordinate origin indicator, a water bubble indicating the horizontal state of the target frame, a support target frame, a power supply and a signal processing device. The laser light sources of the two laser rangefinders are fan-shaped inline semiconductor lasers, and their light-emitting angles are 140°, and the light curtains of the two fan-shaped inline light sources overlap in space, and the two laser rangefinders It is symmetrically arranged on both sides of the system coordinate origin indicator, and by measuring the distance between the projectile passing through the detection light curtain surface and the two laser rangefinders, the projectile landing coordinates are calculated based on the triangular geometric model.
Description
First, technical field
The invention belongs to shooting range measurment technical field, and in particular to a kind of pill impacting coordinate based on laser distance measuring principle
Measurement apparatus and its method of testing, it can be used to measuring various calibre projectiles target coordinate.
2nd, background technology：
In rifle, big gun, the development of bullet and production, pill impacting coordinate is the key parameter for needing often test.Pass through
It is to weigh a good and bad important indicator of weapon performance that target coordinate further calculates the resulting degree of accuracy, closeness index, accurate
Exactness, the quality of closeness are directly connected to the height of hit probability in decisive range.Conventional measuring method has at present
Target plate method, sound target method, twin-line array CCD Convergence methods, many light curtain Convergence methods etc..
Target plate method is that according to testing regulations requirement on the position that trajectory specifies, setting plank or gauze, one group of shooting are complete
Finish, the position of shell hole on target plate is measured by hand.Although target plate method reliability is high, high material consumption, install inconvenient, it is impossible to
Identification repeated hole, wastes time and energy, and can not only accomplish real time data processing, and due to hand dipping, human error without
Method is eliminated.
Though the vertical target of Principles of Acoustics can realize the measurement of pill impacting coordinate, because it receives measurement ambient influnence larger, such as
The air pressure and environment temperature at scene etc., acoustics standing target measurement resultant error is larger, and sound target method cannot be used for bass speed bullet
Measurement.
Many light curtain Convergent measurement methods include four light curtain Convergence methods and six light curtain Convergence methods.Four light curtains cross test system be by
Four light curtains formed with light curtain target or sky are arranged in space with specific position and angle, when bullet is passed through from light curtain,
Bullet through four moment of light curtain is recorded with time-measuring gauge or data collecting instrument, according to four moment values and the locus of light curtain
Parameter just can calculate bullet through the position coordinates of light curtain.The method requirement predetermined target surface of bullet vertical incidence, works as out of plumb
When, the coordinate value that the measure formula of use is calculated differs larger with actual.Six light curtains cross test system be four light curtains hand over
Converge on the basis of vertical target, by increase by two light curtain faces realize to oblique incidence velocity of shot, the trajectory angle of pitch, trajectory azimuth and
The measurement of target position coordinate, the system successfully solves four light curtains and crosses vertical target to the point of impact of oblique incidence trajectory and speed indeterminacy
Deficiency.But many light curtain measuring methods for indoor bullet coordinate when measuring, it is necessary to be equipped with multiple light sources so that measuring system
It is complex.
Double CCD fire measuring systems that cross are a kind of non-contact measuring technologies for developing rapidly in recent years, due to
Many advantages, such as vertical targets of CCD have simple structure, easy to use, certainty of measurement high, real-time and high degree of automation, so
Double CCD cross, and target range commonly uses vertical target at home.But existing couple of CCD crosses vertical target for outdoor small-bore bullet measurement
When, have that sensitivity is low, it is hardly formed the shortcoming of larger measurement target surface.
3rd, the content of the invention
The measurement error that prior art is present big, system complex, measurement target surface be small, system easily receives ring to solve for the present invention
The problems such as border is disturbed, there is provided a kind of pill impacting coordinate measuring device and its method of testing based on laser distance measuring principle.
To achieve the above object, the technical solution adopted by the present invention is：A kind of pill impacting based on laser distance measuring principle
Coordinate measuring set, it is characterised in that：Including support target holder, the upper surface of described support target holder is provided with system coordinates origin
Indicator, the both sides of system coordinates origin indicator are symmetrically arranged with first laser rangefinder and second laser rangefinder, first
Laser range finder and second laser rangefinder are connected with system power supply power supply and signal processing apparatus respectively, first laser rangefinder
Be fan-shaped word line semiconductor laser with the LASER Light Source of second laser rangefinder, its lighting angle be 100 °-
160 °, and two luminous light curtains of fan-shaped word line semiconductor laser are in space coincidence.
Described support target holder upper surface is additionally provided with target holder horizontality and indicates bubble.
Described first laser rangefinder and the LASER Light Source light emitting anger of second laser rangefinder are 140 °.
A kind of pill impacting coordinate measuring method based on laser distance measuring principle, the bullet in detection light curtain face is passed through by measurement
Ball and two distances of laser range finder, based on triangle geometry model solution pill impacting coordinate, comprise the following steps that：
1) coordinate system XOY is set up by origin of two midpoint O of laser range finder LASER Light Source luminous point A and B, two are swashed
The distance between optar laser luminous point A and B are D；
2) ball firing, bullet passes through Measuring light screen face, and two laser range finder measurements obtain bullet and two lasers
Luminous point apart from S1And S2。
3) impact point coordinates is calculated according to system coordinates measure equation：
4) result of calculation x and y are obtained.
Compared with prior art, the invention has the advantages that and effect：
1st, the present apparatus has that measurement target surface is big, and certainty of measurement is high, measurement error can be reached in the range of 100m 2mm with
Interior, compared with other pill impacting coordinate measuring methods, measurement error is minimum；
2nd, because method of the present invention measuring principle is simple, based on the method for the present invention, the core probe unit of the present apparatus
It is two wide-angle laser range finders for being provided with fan-shaped word line semiconductor laser light resource, it is easy to be engineered；
3rd, present apparatus indoor and outdoor be can be used, and in outdoor application, because it uses active illuminating source, system is only visited
The light of wavelength corresponding to transmitting light source is surveyed, thus is not readily susceptible to the interference of external environment light；
4th, pill impacting coordinate can be obtained by measuring method of the present invention, can be for further for calculating is accurate, closeness
Index provides basic data, and the degree of accuracy, the quality of closeness are directly connected to the height of hit probability in decisive range.
4th, illustrate：
Fig. 1 is structure drawing of device of the invention；
Fig. 2 is pill impacting Coordinate calculation method schematic diagram of the present invention.
5th, specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
A kind of pill impacting coordinate measuring device (referring to Fig. 1) based on laser distance measuring principle of the present embodiment, including support
Target holder 5, the upper surface of described support target holder 5 is provided with system coordinates origin indicator 3, system coordinates origin indicator 3
Both sides are symmetrically arranged with first laser rangefinder 1 and second laser rangefinder 2, and first laser rangefinder 1 and second laser are found range
Instrument 2 is connected with system power supply power supply (6) and signal processing apparatus 7 respectively, first laser rangefinder 1 and second laser rangefinder 2
LASER Light Source be fan-shaped word line semiconductor laser, its lighting angle is 100 ° -160 °, and two words of sector one
The luminous light curtain of wire-type semiconductor laser is in space coincidence.
The described upper surface of support target holder 5 is additionally provided with target holder horizontality and indicates bubble 4, for monitoring whether target holder is located
In horizontality.
Whole device forms an entirety, is easy to carry and uses.
Referring to Fig. 2：A kind of pill impacting coordinate measuring method based on laser distance measuring principle, detection light is passed through by measurement
The bullet and two distances of laser range finder 1 and 2 in curtain face, based on triangle geometry model solution pill impacting coordinate, specifically
Step is as follows：
Coordinate system XOY is set up by origin of two midpoint O of laser range finder LASER Light Source luminous point A and B, when target holder water
When level state indicates bubble to be designated as centre position, the difference in height of two laser range finders is zero, and two laser range finders are in water
Square upward distance is D, bullet from E points through detection target surface, if laser range finder measures bullet and two laser range finders
The distance of LASER Light Source luminous point A and B is S1And S2。
Indoor and outdoor bullet coordinate method of testing based on device provided by the present invention is, when bullet passes through measurement target surface
When, the distance of bullet and point A and B is measured by two laser range finders, and then by the geometric operation based on Triangle Principle
Method, be calculated pill impacting coordinate.In the present embodiment, the treatment of data is carried out using signal processing apparatus 7, is adopted
It is connected with two laser range finders with signal processing apparatus 7, is comprised the following steps that：
One, sets up coordinate system XOY, two laser by origin of two midpoint O of laser range finder LASER Light Source luminous point
The distance between rangefinder laser luminous point is D；
Now the work of test device electrifying startup, the calculating in signal processing apparatus 7 is manually entered by systematic parameter D in advance
Machine；
Two, ball firings, bullet passes through Measuring light screen face, two laser range finder measurements obtain bullet and point A and B away from
From being S1And S2, and by signal-transmitting cable by two apart from S1And S2It is transferred to signal processing apparatus 7.
Three, signal processing apparatus 7 further calculate impact point coordinates according to system coordinates measure equation：
Four, Computer displays and storage result of calculation x and y.
The above, only present pre-ferred embodiments are not intended to limit the scope of the present invention.
Claims (4)
1. a kind of pill impacting coordinate measuring device based on laser distance measuring principle, it is characterised in that：Including support target holder (5),
The upper surface of described support target holder (5) is provided with system coordinates origin indicator (3), system coordinates origin indicator (3)
Both sides are symmetrically arranged with first laser rangefinder (1) and second laser rangefinder (2), and first laser rangefinder (1) and second swash
Optar (2) is connected with system power supply power supply (6) and signal processing apparatus (7) respectively, first laser rangefinder (1) and second
The LASER Light Source of laser range finder (2) is fan-shaped word line semiconductor laser, and its lighting angle is 100 ° -160 °, and
Two luminous light curtains of fan-shaped word line semiconductor laser are in space coincidence.
2. a kind of pill impacting coordinate measuring device based on laser distance measuring principle according to claim 1, its feature exists
In：Described support target holder (5) upper surface is additionally provided with target holder horizontality and indicates bubble (4).
3. a kind of pill impacting coordinate measuring device based on laser distance measuring principle according to claim 1, its feature exists
In：Described first laser rangefinder (1) and the LASER Light Source light emitting anger of second laser rangefinder (2) are 140 °.
4. a kind of pill impacting coordinate measuring method based on laser distance measuring principle according to claim 1, its feature exists
In：The bullet and two distances of laser range finder in detection light curtain face are passed through by measurement, based on triangle geometry model solution
Pill impacting coordinate, comprises the following steps that：
1) coordinate system XOY, two Laser Measurings are set up by origin of two midpoint O of laser range finder LASER Light Source luminous point A and B
The distance between distance meter laser luminous point A and B are D；
2) ball firing, bullet passes through Measuring light screen face, and two laser range finder measurements obtain bullet and two lasers light
Point apart from S1And S2。
3) impact point coordinates is calculated according to system coordinates measure equation：
4) result of calculation x and y are obtained.
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| CN201710045926.6A CN106814368A (en) | 2017-01-20 | 2017-01-20 | Pill impacting coordinate measuring device and measuring method based on laser distance measuring principle |
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| CN201710045926.6A CN106814368A (en) | 2017-01-20 | 2017-01-20 | Pill impacting coordinate measuring device and measuring method based on laser distance measuring principle |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108534699A (en) * | 2018-03-20 | 2018-09-14 | 中北大学 | A kind of laser light curtain range device for accurately measuring and measurement method |
| CN109059661A (en) * | 2018-08-08 | 2018-12-21 | 南京理工大学 | A kind of full-automatic Nutation Angle testing laser target and its test method |
| CN111256622A (en) * | 2020-01-22 | 2020-06-09 | 同济大学 | Dual laser type robot joint angle measuring method and angle measuring device |
| CN113124719A (en) * | 2021-04-24 | 2021-07-16 | 西安工业大学 | Laser ranging scanning type precision target and testing method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108534699A (en) * | 2018-03-20 | 2018-09-14 | 中北大学 | A kind of laser light curtain range device for accurately measuring and measurement method |
| CN109059661A (en) * | 2018-08-08 | 2018-12-21 | 南京理工大学 | A kind of full-automatic Nutation Angle testing laser target and its test method |
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| CN113124719A (en) * | 2021-04-24 | 2021-07-16 | 西安工业大学 | Laser ranging scanning type precision target and testing method thereof |
| CN113124719B (en) * | 2021-04-24 | 2023-12-01 | 西安工业大学 | Laser ranging scanning type precision target and testing method thereof |
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Application publication date: 20170609 |