Digital photoelectric integrated anti-recoil indicating device

Abstract

The embodiment of the invention provides a digital photoelectric integrated anti-recoil indicating device which comprises a laser displacement sensor connected with a detection circuit board and used for emitting laser pulses to a breech, receiving the laser pulses reflected back from the breech, carrying out laser distance measurement to obtain a laser displacement distance, and sending the laser displacement distance to the detection circuit board; the laser displacement distance is sent to a detection circuit board; and the detection circuit board is used for recording time information from laser pulse emission to laser pulse receiving of the laser displacement sensor, calculating the gun recoil time according to the time information based on a ToF flight time measurement basic principle, and calculating the gun recoil distance according to the laser displacement distance.

Description

Technical Field

[0001] This document relates to the field of laser technology, and particularly to a digital optoelectronic integrated recoil indication device. Background Art

[0002] In the prior art, the military mainly uses mechanical recoil devices for measurement during shooting. The main principle is that when the gun recoils, the gun breech pushes the pointer of the rear coordinate scale to the farthest distance. The reading is viewed through the scale graduation, and then the pointer of the rear coordinate scale is manually reset for the next measurement. This device can only measure one parameter of the gun recoil distance and cannot detect the faults of excessive or insufficient gun return. Moreover, manual resetting is laborious, and it is prone to rust if not maintained in time, resulting in more inaccurate measurement results. Summary of the Invention

[0003] The purpose of the present invention is to provide a digital optoelectronic integrated recoil indication device, aiming to solve the above problems in the prior art.

[0004] The present invention provides a digital optoelectronic integrated recoil indication device, including:

[0005] A laser displacement sensor, connected to the detection circuit board, for emitting a laser pulse to the gun breech, receiving the laser pulse reflected from the gun breech, performing laser ranging to obtain the laser displacement distance, and sending the laser displacement distance to the detection circuit board;

[0006] A detection circuit board, arranged in the host, for recording the time information of the laser displacement sensor from emitting the laser pulse to receiving the laser pulse, calculating the gun recoil time based on the basic principle of ToF flight time measurement, and calculating the gun recoil distance according to the laser displacement distance.

[0007] Adopting the embodiment of the present invention, the detection speed is fast and the accuracy is high. The detection records can be saved and printed, breaking the manual operation of one-shot and one-reset of the traditional mechanical detection equipment, conforming to the development concept of new equipment, further liberating the labor force, and improving the battlefield detection efficiency. In daily training, the maintenance procedures are reduced and the operation is convenient. Brief Description of the Drawings

[0008] In order to more clearly illustrate the technical solutions in one or more embodiments or the prior art of this specification, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in this specification. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0009] Figure 1It is a schematic diagram of the digital optoelectronic integrated recoil indication device according to an embodiment of the present invention;

[0010] Figure 2 It is a schematic diagram of the preferred structure of the digital optoelectronic integrated recoil indication device according to an embodiment of the present invention. Detailed implementation manners

[0011] In order to enable those skilled in the art to better understand the technical solutions in one or more embodiments of this specification, the following will clearly and completely describe the technical solutions in one or more embodiments of this specification with reference to the accompanying drawings in one or more embodiments of this specification. Obviously, the described embodiments are only a part of the embodiments of this specification, rather than all the embodiments. Based on one or more embodiments of this specification, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this document.

[0012] According to an embodiment of the present invention, a digital optoelectronic integrated recoil indication device is provided. Figure 1 It is a schematic diagram of the digital optoelectronic integrated recoil indication device according to an embodiment of the present invention, as Figure 1 shown. The digital optoelectronic integrated recoil indication device according to an embodiment of the present invention specifically includes:

[0013] A laser displacement sensor 10, connected to a detection circuit board, for emitting a laser pulse to the breechblock and receiving the laser pulse reflected from the breechblock, performing laser ranging to obtain a laser displacement distance, and sending the laser displacement distance to the detection circuit board; the laser displacement sensor 10 specifically includes:

[0014] A transmitter, for continuously emitting laser pulses to the breechblock;

[0015] A receiver, for continuously receiving the laser pulse reflected from the breechblock, performing laser ranging to obtain a laser displacement distance, and sending the laser displacement distance to the detection circuit board.

[0016] A detection circuit board 12 (disposed in the host), for recording the time information of the laser displacement sensor from emitting a laser pulse to receiving the laser pulse, based on the basic principle of ToF time-of-flight measurement, calculating the recoil time of the gun according to the time information, and calculating the recoil distance of the gun according to the laser displacement distance. The detection circuit board 12 specifically includes: a microcontroller, for calibrating the reference number to 0, when it is determined that the position of the breechblock has changed by a predetermined length, triggering timing, recording the time information of the laser displacement sensor from emitting a laser pulse to receiving the laser pulse, based on the basic principle of ToF time-of-flight measurement, until the timing time reaches the maximum value, returning to the reference number, calculating the recoil time of the gun based on the maximum value, and calculating the recoil distance of the gun according to the laser displacement distance.

[0017] The host also includes:

[0018] A power supply module for powering the digital optoelectronic integrated recoil indication device;

[0019] An adapter board for connecting other circuit boards in the host.

[0020] A display board (i.e., an LED display screen) for displaying the recoil time and recoil distance of the artillery calculated by the microcontroller.

[0021] An alarm module for judging whether there is a fault in the artillery recoil according to the recoil time and recoil distance of the artillery, and giving an alarm if a fault occurs.

[0022] A printing module for printing the historical data of the recoil time and recoil distance of the artillery in real time.

[0023] The device further includes:

[0024] A reflector is arranged at the gun breech for reflecting the laser pulse emitted by the laser displacement sensor. Among them, the reflector is a folding structure, and the states of the folding structure include: a folded state when not in use and an unfolded state when in use.

[0025] In the embodiment of the present invention, the laser displacement sensor and the detection circuit board are separately installed. A shock-absorbing spring is arranged under the host for reducing the vibration of the detection circuit board.

[0026] The digital optoelectronic integrated recoil indication device in the embodiment of the present invention has a fast detection speed, high accuracy, and convenient operation, breaks the manual operation of one-shot and one-reset of traditional mechanical detection equipment, further liberates manpower, reduces daily maintenance procedures, improves battlefield detection efficiency, effectively prevents potential safety risks of personnel and equipment, and conforms to the future development direction of equipment digitization. Through the laser displacement sensor, the maximum and minimum recoil distance indexes are detected and the parameters are displayed on the screen in real time. If the detected indexes exceed the limit, an audible and visual alarm can be issued to remind the personnel to stop shooting.

[0027] This device is mainly used to measure the recoil distance of the artillery, and determine whether there is excessive or insufficient recoil of the artillery by the working time of the recoil mechanism after each ammunition is fired. Once a fault occurs, an alarm will be immediately issued to inform the crew to quickly stop firing and ensure the safety of personnel and equipment. ① Main unit (with a detection circuit board installed): It is installed on the wire transmission box on the left turret wall of the artillery, allowing the crew to view the data in real time and print out the historical data during actual firing as needed. ② Laser displacement sensor: It uses a 360° damped probe and can adjust the detection direction; the base uses a threaded locking clamping mechanism, and the installation position can be flexibly changed according to the characteristics of the equipment. ③ Reflector: It is made of high-reflectivity material, which can effectively reflect the infrared signal to the receiver of the photoelectric switch, enhancing the sensitivity and stability of the switch; usually it covers the surface of the liquid volume detection meter on the right side of the gun breech. When in use, it adopts a three-fold mechanism with its own shaft resistance and quickly enters the working state. ④ Power supply connection: The power supply connector of this machine uses an insulated power clamp to fix the wire on the terminal. The connection method is convenient and fast, which can ensure the stable transmission of current and can accurately measure even when the voltage is lower than the normal voltage of the equipment.

[0028] The technical solution of the embodiment of the present invention creatively applies the basic principle of ToF time-of-flight measurement, adopts an anti-interference algorithm to improve the detection accuracy; uses a digital display screen to intuitively display the detection parameters; uses a 360° damped probe and can adjust the detection direction; has an audible and visual alarm function to enhance the warning effect; can be equipped with a printing function to view the detection history record and count the data changes; a folding reflector can be installed on the gun breech to make the detection effect better.

[0029] Specifically, the basic principle of Time-of-Flight (ToF) is to continuously emit light pulses (generally invisible light) onto the target object, and then receive the light pulses reflected from the object. The distance of the object to be measured is calculated by detecting the round-trip flight time of the light pulses. According to different modulation methods, it can generally be divided into two types: Pulsed Modulation and Continuous Wave Modulation. The pulsed modulation method generally uses square-wave pulses. By directly calculating the time difference between the pulse emission and reception through a timer, the distance can be obtained. This measurement method is simple and has a fast response, but it has high requirements for the performance of physical devices and also for the time measurement accuracy. In the pulsed modulation scheme, a square-wave modulated illumination source is generally used, which is relatively easy to implement in digital circuits. This method has high requirements for the performance of physical devices and very high requirements for the clock accuracy of the control switch. To generate high-precision and highly repeatable high-frequency pulses, both the illumination unit and the ToF sensor require high-speed signal control to achieve high-precision depth measurement. In the continuous wave modulation method, continuous sine wave modulation is generally used. By continuously emitting modulated infrared laser light from the light source, after the light beam is reflected by the surface of the object to be measured, a part of the light returns along the original path and is received by the detector. Due to the phase difference between the transmitted and received signals, the flight time difference of the light can be indirectly calculated through phase difference detection technology. Different from pulsed wave modulation, the continuous wave modulation method obtains multiple samples each time it measures, with a phase difference of 90° between each sample. A total of 4 samples are collected, namely C1 - C4. Most ToFs use this method, that is, the 4-phase method, which is relatively easy to implement in digital operations. Continuous wave ToF can use dual frequencies to solve the phase ambiguity phenomenon, using the measurement data of two different frequencies to solve the phase ambiguity and thus restore the correct depth value. With dual-frequency measurement, high-precision measurement and a high effective detection distance can be achieved simultaneously. Compared with the pulsed wave modulation scheme, the continuous wave modulation method has lower requirements and higher measurement accuracy, so most use the continuous wave modulation method.

[0030] The base of the main unit (with a detection circuit board installed) uses shock-absorbing springs to reduce vibration and noise and extend the service life of the machine body. The LED display screen has the characteristics of high brightness, rich colors, and strong dynamics, which is convenient for reading. The probe (i.e., the above-mentioned laser displacement sensor) can be adjusted 360° in the detection direction with damping. The printer control panel is simple and intuitive, with few operation steps, and can perform real-time printing, making it convenient to use.

[0031] After static testing and small-scale use, the components of this device are installed quickly, the probe is sensitive, the accuracy is high, and the state is good.

[0032] This device uses a laser displacement sensor and can give out audible and visual alarms. The working voltage range is 10V to 50V DC voltage, the working ambient temperature is -20°C to 50°C, the anti-vibration ability is ≥5° / 10 seconds, and it can be used all-weather and maintain good technical conditions under various extreme weather conditions. The displacement display is 0 to 999mm, the acceleration display is 0 to 10g, and the working time display is 0 to 2000ms. It can initially judge the situation of recoil failure. This device can be used in various scenarios such as usual training, live firing with actual equipment, and drills.

[0033] The digital optoelectronic integrated recoil indication device in the embodiment of the present invention has a small volume, light weight, high detection efficiency, and controllable cost. It can effectively replace the existing mechanical recoil detection equipment and improve the firing safety of artillery. By using the dual-index detection of recoil distance and time, the correct rate is significantly improved; detecting with a laser optoelectronic sensor and the electronic display screen can display parameters such as recoil distance, time, and acceleration in real time, with higher efficiency; liberating manual operation and simplifying the operation steps; ④ simple maintenance; ⑤ simple and intuitive detection feedback method, making it easier to master the working state of the recoil device; ⑥ simple installation and convenient operation.

[0034] The comparison of the index parameters between this device and the traditional mechanical detection device is shown in Table 1 as follows:

[0035] Table 1

[0036]

[0037] In practical applications, the main control chip is ATmega2560, the display is upgraded to an RGB dot matrix display (64x32 resolution), and a recording and printing function is added. The system uses a SparkFun VL53L1X sensor for ranging, and the ranging range is 200mm to 1500mm. Each 10 seconds is a ranging cycle, and the maximum distance value within this cycle is displayed and printed. The printer selects the Minyou MY-E4M embedded printing module, which supports RS232, USB, and TTL communications. It has a wide-range DC-DC 5V and 12V dual-output, uses a 12V DC power supply to power the printer, and a 5V DC power supply to power other components.

[0038] The ranging program flow is as follows:

[0039] Initialization: Initialize the I2C interface of ATmega2560. Initialize the VL53L1X sensor. Initialize the RGB dot matrix display. Initialize the printer communication (TTL).

[0040] Main loop: Conduct a ranging cycle every 10 seconds. During the ranging cycle, continuously read the distance value of the VL53L1X sensor. Record and compare each read distance value, and save the maximum value. Display the maximum distance value within this cycle on the RGB dot matrix display.

[0041] Print the maximum distance value through the printer.

[0042] Performance indicators: Ranging range: 200mm - 1500mm; Ranging period: 10 seconds; Display update: The maximum distance value is updated every 10 seconds; Printing function: The maximum distance value is printed every 10 seconds; Accuracy: The accuracy of the VL53L1X sensor is ±3mm.

[0043] Power on the system to ensure that all components are working properly. Use a standard ranging tool (such as a tape measure) to measure the actual distance and compare it with the distance displayed by the system. Verify whether the printer can correctly print the maximum distance value within each ranging period. Conduct multiple tests within different distance ranges (200mm - 1500mm) to verify the stability and accuracy of the system. The system should be able to accurately measure and display the distance within the range of 200mm to 1500mm. The display is updated every 10 seconds, and the maximum distance value within this period is printed.

[0044] The technical solution of the embodiment of the present invention has successfully realized a laser ranging system based on ATmega2560, which has higher processing capabilities and richer display effects. By adding a printing function, the system can record and output the maximum distance value within each ranging period, and is suitable for application scenarios that require data recording.

[0045] In summary, the present invention provides a multifunctional recoil detection device based on the ToF (Time-of-Flight) measurement principle in real time. The device continuously emits light pulses to the target object, then receives the light pulses reflected from the object, calculates the distance of the measured object by detecting the round-trip flight time of the light pulses, and records the time index used in the whole process, completing the detection of two indicators of distance and time, and can accurately judge whether the recoil device is faulty.

[0046] The digital optoelectronic integrated recoil indicating device of the embodiment of the present invention uses a laser optoelectronic sensor to detect, and indicates parameters such as the recoil distance, time, and acceleration of the gun recoil device through an electronic display screen to judge whether there is a fault in the recoil device. The device has a fast detection speed and high accuracy, can save and print the detection records, breaks the manual operation of one-shot and one-reset of traditional mechanical detection equipment, conforms to the development concept of new equipment, further liberates the labor force, and improves the battlefield detection efficiency. In daily training, the maintenance procedures are reduced, and the operation is convenient.

[0047] Compared with the previous devices, the technical solution of the embodiment of the present invention has the following advantages:

[0048] 1. By adopting the dual-index detection of recoil distance and time, the correct rate is significantly improved;

[0049] 2. Detect with a laser photoelectric sensor, and the electronic display screen can display parameters such as recoil distance, time, acceleration, etc. in real time, with higher efficiency;

[0050] 3. Liberate manual operation and simplify the operation steps;

[0051] 4. Simple maintenance;

[0052] 5. The detection feedback method is simple and intuitive, and it is easier to master the working state of the recoil device;

[0053] 6. Simple installation and convenient operation.

[0054] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A digital photoelectric integrated recoil indicator device, characterized in that: include: A laser displacement sensor is connected to the detection circuit board, and is used to emit laser pulses to the breech block, and receive laser pulses reflected from the breech block, perform laser ranging, obtain laser displacement distance, and send the laser displacement distance to the detection circuit board; The detection circuit board is arranged on the host and is used to record the time information from the laser displacement sensor emitting the laser pulse to receiving the laser pulse. Based on the basic principle of ToF flight time measurement, the gun recoil time is calculated according to the time information, and the gun recoil distance is calculated according to the laser displacement distance.

2. The device according to claim 1, characterized in that The device further comprises: The reflector is arranged at the breech block and is used for reflecting the laser pulse emitted by the laser displacement sensor.

3. The device according to claim 1, characterized in that The reflector is a folding structure, and the states of the folding structure include: a folded state when not in use and an unfolded state when in use.

4. The device according to claim 1, characterized in that The laser displacement sensor specifically comprises: A transmitter, used to continuously emit laser pulses to the breech block; The receiver is used to continuously receive the laser pulses reflected from the breech block, perform laser ranging, obtain the laser displacement distance, and send the laser displacement distance to the detection circuit board.

5. The device according to claim 1, characterized in that The detection circuit board specifically comprises: The microcontroller is used to calibrate the reference number to 0. When it is determined that the position of the gun breech changes by a predetermined length, it triggers timing and records the time information from the laser displacement sensor emitting a laser pulse to receiving a laser pulse. Based on the basic principle of ToF time of flight measurement, the timing time reaches a maximum value and returns to the reference number. The gun recoil time is calculated based on the maximum value, and the gun recoil distance is calculated based on the laser displacement distance.

6. The device according to claim 5, characterized in that The host further comprises: A power module, used to supply power to the digital optoelectronic integrated recoil indicator device; The adapter board is used for connecting other circuit boards in the host.

7. The device according to claim 5, characterized in that The host further comprises: The display panel is used to display the gun recoil time and the gun recoil distance calculated by the microcontroller.

8. The device according to claim 5, characterized in that The host further comprises: An alarm module is used to determine whether a gun recoil failure occurs according to the gun recoil time and the gun recoil distance, and to alarm if a failure occurs; The printing module is used to print the historical data of the gun recoil time and the gun recoil distance in real time.

9. The device according to claim 1, characterized in that The laser displacement sensor and the detection circuit board are installed separately.

10. The device according to claim 1, characterized in that A shock absorbing spring is arranged under the mainframe to reduce the vibration of the detection circuit board.

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