A new type of gun sight with intelligent shooting prompt function

Abstract

The present invention relates to the technical field of aiming equipment, specifically a new type of gun sight with an intelligent shooting prompt function, which includes: an intelligent image processing module for collecting infrared camera images and button operation signals, automatically detecting and identifying targets, automatically measuring target distances and calculating impact point positions as needed, and superimposing image information and displaying output in real time; an infrared camera module for acquiring target infrared images both during the day and at night; a shooting prompt module for generating a flashing reminder of shooting on an image when shooting conditions are met, and sending vibration information to a vibration bracelet through an NFC main control board to prompt a shooter to shoot; and a vibration bracelet worn on the shooter's wrist for receiving NFC vibration signals sent by the shooting module. The difficulty of the shooter finding a target can be effectively reduced, the shooting moment can be accurately controlled, and the intelligence and automation level of firearms can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of aiming instruments, in particular to a new type of gun aiming instrument with an intelligent shooting prompting function. Background Art

[0002] Firearms are important weapons for individual sniping, assault, defense, and offense, and are also an indispensable means of defense against the enemy in modern warfare. With the advancement of technology and changes in combat methods, the demand for automated, intelligent, and all-weather firearms is becoming more and more urgent. Traditional firearms are flexible and reliable, but in modern warfare, the battlefield situation changes rapidly. How to quickly and accurately find targets in complex battlefield environments, and how to efficiently, quickly, and accurately strike targets are urgent needs for high-efficiency, automated, and intelligent firearms.

[0003] The shooting effectiveness of a firearm is mainly composed of four parts: the gun, the bullet, the scope and the person. The design of the gun has accumulated experience for many years and has a great degree of inheritance; the bullet is constantly being improved, and has greatly improved in terms of stability, accuracy and lethality; the scope has been comprehensively improved in optical imaging and image processing with the rapid development of optoelectronic technology, and has greatly upgraded in terms of the size and imaging quality of the sight; the user, the person, currently still relies on strict and hard training and experience accumulation, constantly exploring the rules of using firearms, and mastering the operating skills to improve the attack accuracy and efficiency of firearms.

[0004] According to the traditional classification of rifles, they are generally divided into ordinary rifles, assault rifles and sniper rifles. Ordinary rifles are mainly used to fire bullets, kill exposed living targets and self-defense, and the effective range is generally 400 meters. Assault rifles are mainly used for charging, rapid attack and seizing positions. They focus on the rifle's rate of fire and burst shooting ability. The effective range varies greatly depending on the type of bullet and the length of the barrel, but generally emphasizes the assault function within 300 meters. The sniper rifle is a special high-precision rifle used to kill important living targets above 400 meters and anti-material targets at longer distances (anti-light armor, anti-explosives, anti-small radar stations, anti-low-altitude aircraft below 400 meters, etc.).

[0005] Because sniper rifles generally have a long combat range and a high level of target killing, they play an important role in eliminating potentially dangerous targets. Therefore, most countries have equipped sniper rifles with optical sights, red dot sights, electronic sights, as well as relatively expensive low-light sights and infrared sights. At the same time, they are also gradually promoting high-performance sights to ordinary rifles and assault rifles.

[0006] At present, combat mainly takes place at night, and usually requires the equipment of low-light or infrared cameras to solve the problem. Low-light cameras can work under extremely low illumination and are relatively cheap, but because low-light cameras can only receive reflected light from objects for imaging, when the light is too weak, there are large image noises, it is difficult to distinguish between the target and the background, and it is difficult to image in a completely dark environment. Because infrared cameras receive thermal radiation imaging of objects, they can image objects or personnel with temperature during the day, at night, and in completely dark conditions, and infrared cameras are relatively expensive. With the advancement of technology, the size of processed pixels is reduced, and the price of required infrared materials is reduced; the price of multiple sensors is reduced after one-time packaging and then cutting and packaging; the manufacturing process is mature and the yield rate is improved; the reduction in sensor size leads to a reduction in infrared lenses and a reduction in lens prices; the price of infrared cameras, especially non-cooled infrared cameras, drops rapidly. In addition, the increase in the number of non-cooled infrared cameras actually used has also caused the price of non-cooled infrared cameras to drop rapidly. At present, the manufacturing cost of non-cooled infrared cameras has been reduced to a level that is basically equivalent to the price of low-light cameras, so in this invention, a non-cooled infrared camera transmission imaging solution is adopted that can completely solve the imaging problem day and night, including in a completely dark environment, with a high cost performance ratio. In addition, because infrared cameras have the ability to penetrate smoke, shooters and intelligent processing algorithms can more quickly detect targets obscured by smoke during combat. Summary of the invention

[0007] In view of the problems in the prior art, the present invention provides a new type of gun sight with an intelligent shooting prompt function.

[0008] The technical solution adopted by the present invention to solve the technical problem is: a new type of gun sight with an intelligent shooting prompt function, the new type of gun sight with an intelligent shooting prompt function comprises:

[0009] Intelligent image processing module, used to collect infrared images and button operation signals, automatically detect and identify targets, automatically measure target distances and calculate impact point locations as needed, and perform real-time image information superposition and display output;

[0010] Infrared camera module, used to acquire infrared images both during the day and at night;

[0011] The shooting prompt module is used to generate a flashing shooting prompt on the image when the shooting conditions are met, and send vibration information to the vibration bracelet through the NFC main control board to prompt the shooter to shoot;

[0012] The vibration bracelet is worn on the shooter's wrist and is used to receive the NFC vibration signal sent by the shooting module and generate vibration to prompt shooting;

[0013] Button operation module, used for the shooter to control the working mode and status of the sight through buttons;

[0014] Image display module, used to display the acquired infrared image and superimposed information on a micro OLED screen, and the shooter can observe the image and read the shooting information through the eyepiece;

[0015] The power module is used to convert the 3.3V power supply of the battery into the voltage required by each module of the sight.

[0016] Specifically, the intelligent image processing module includes:

[0017] An acquisition interface module is used for multi-channel image acquisition of the image sensor of the rifle sight;

[0018] The core processing module includes a low-power SOC, a flash unit, a DDR unit, a clock unit, and an inter-board connection unit with the acquisition interface module;

[0019] The algorithm software module is used for image processing of the matching hardware module gun aiming system, including the software underlying driver module, configuration management module, target detection module, recognition algorithm design and implementation module, UI interface design module and task scheduling design module.

[0020] Specifically, the recognition algorithm design and implementation module is composed of an automatic target distance measurement algorithm software module, an on-demand trajectory solution software module, and a shooting prompt software module, wherein:

[0021] The automatic target distance measurement algorithm software module automatically calculates the target distance using projection calculation method according to the target type and target frame width detected by the intelligent algorithm and the target standard size;

[0022] The on-demand ballistic solution software module calculates the target distance based on the target selected by the shooter that appears in the center of the scene, calculates the impact point at that distance on the illumination table and generates an impact point scale on the image, prompting the shooter to pay attention and adjust the muzzle to the impact point, and wait for the target to enter the vicinity of the impact point.

[0023] Specifically, the shooting prompt module is connected to a vibration control module and a shooting prompt algorithm module, and the vibration control module is connected to an NFC main control board.

[0024] Specifically, the vibration bracelet includes an NFC main control and driving board, a flat vibration motor, and a strap.

[0025] Specifically, the shooting prompt module and the vibration bracelet are wirelessly connected by respectively providing a loop antenna A and a loop antenna B.

[0026] Specifically, the infrared camera module is an uncooled infrared camera module, which uses an infrared BT656 digital video through a flexible connecting line and is connected to the BT656 channel of the intelligent image processing module.

[0027] Specifically, the design method of the novel gun sight with intelligent shooting prompt function includes:

[0028] Step 1: Use the circuit board wiring software to create independent folders for the NFC main control board circuit and the vibration bracelet circuit board, and make wiring and boards as needed;

[0029] Step 2: Select the uncooled infrared camera module, button operation module, image display module, and combine the manufactured NFC main control board, vibration bracelet, intelligent image processing module, and power module to design a new gun sight;

[0030] Step 3: Using the HIMPP HiSilicon software development platform, on the basis of the algorithm software code, add the automatic target distance measurement algorithm software module, the on-demand trajectory solution software module, the shooting prompt software module, and the control software of the NFC main control board, directly compile the software to form the running code, download it to the flash unit of the core processing module, and execute the infrared image acquisition, interface configuration, target detection and recognition, distance measurement, on-demand impact point solution, target tracking and optimal shooting time calculation of intelligent shooting prompts, and perform shooting prompts when the attack conditions are met;

[0031] Step 4: Use NFC dedicated chip, equipped with single-chip microcomputer and vibration motor, and design a vibration bracelet with watch strap. Write single-chip microcomputer software to configure the working mode of the vibration bracelet NFC chip, and control the PWM vibration intensity of the vibration motor. After compiling and debugging and passing the joint test with the NFC main control board, form the running code, download it to the single-chip microcomputer flash, execute the reception of the intelligent shooting vibration signal and provide shooting vibration prompts;

[0032] Step 5: In the driver software, configuration management software, and image acquisition software code, modify, compile, and debug the corresponding software code according to the infrared image resolution, frame rate, and image type;

[0033] Step 6: In the target detection and recognition algorithm software code, the deep learning target detection model is trained and updated according to the target type and application environment to be attacked;

[0034] Step 7: Edit the software code in the UI interface and modify the code as needed;

[0035] Step eight, assemble the new gun sight with intelligent shooting prompt function according to the overall design block diagram, and conduct functional performance test.

[0036] A storage medium for receiving user input program, wherein the stored computer program enables an electronic device to execute the novel gun aiming design method with intelligent shooting prompting function.

[0037] A computer program product stored on a computer-readable medium includes a computer-readable program, which, when executed on an electronic device, provides a user input interface to implement the novel gun aiming design method with an intelligent shooting prompting function.

[0038] Beneficial effects of the present invention:

[0039] 1. The sight of the present application can be used day and night, and can automatically detect and identify targets, automatically measure target distances, intelligently calculate bullet impact points, and intelligently provide target shooting prompts. It can effectively reduce the difficulty for shooters to find targets, accurately control the shooting moment, and improve the intelligence and automation level of firearms; the use of new gun sights with shooting prompt functions can effectively expand the ability of firearms to fight day and night, especially at night, greatly improve the automation level of shooting, and improve the ability to observe battlefield scenes, intelligent target detection capabilities, and rapid and accurate shooting capabilities. Thereby effectively ensuring the all-weather defense and offensive capabilities in individual combat;

[0040] 2. Target distance measurement, target shooting time calculation, and shooting prompt function have been added with uncooled infrared camera module, button operation module, image display module, bracket guide, shooting NFC main control board module, and vibration bracelet. A new gun sight with intelligent shooting prompt function has been designed. After using the new gun sight, it provides advanced technical means for intelligent combat, daytime and day and night combat, and for assisting shooters to quickly find targets and attack targets quickly and accurately, which can effectively improve the shooter's combat capability.

[0041] 3. The present invention can also be extended to other equipment, such as unmanned aerial vehicles, combat robot dogs, automatic combat vehicles, sniper rifles, individual reconnaissance equipment and other equipment, for rapid detection, identification and attack prompts of targets. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0043] Figure 1 A system structure diagram of a new type of gun sight with intelligent shooting prompt function provided by the present invention;

[0044] Figure 2 A system schematic diagram of a new type of gun sight with intelligent shooting prompt function provided by the present invention;

[0045] Figure 3 A flow chart of a novel gun aiming design method with intelligent shooting prompting function provided by the present invention;

[0046] Figure 4 The task scheduling software flow chart provided by the present invention;

[0047] Figure 5The shooting moment calculation principle diagram provided by the present invention;

[0048] Figure 6 The main processor circuit diagram of the PN7150 chip provided by the present invention;

[0049] Figure 7 A circuit diagram of the antenna provided by the present invention;

[0050] Figure 8 A block diagram of the vibration bracelet provided by the present invention;

[0051] Fig. 9 ML51BB9AE and MOS drive circuit and vibration motor circuit diagram provided by the present invention;

[0052] Fig.10 A processing flow chart of the intelligent image processing board portion of the intelligent image processing module provided by the present invention;

[0053] Fig.11 This is a system schematic diagram of the intelligent image processing module provided by the present invention.

[0054] In the figure: 1. Infrared camera module; 2. Button control module; 3. Intelligent image processing module; 31. Acquisition interface module; 32. Core processing module; 33. Algorithm software module; 4. Image display module; 5. Shooting prompt module; 51. Vibration control module; 511. NFC main control board; 512. Loop antenna A; 52. Shooting prompt algorithm module; 6. Power supply module; 7. Vibration bracelet; 71. Loop antenna B; 72. NFC main control and driver board; 73. Flat vibration motor; 74. Strap. DETAILED DESCRIPTION

[0055] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0056] As attached Figure 1 As shown, the novel gun sight with intelligent shooting prompt function provided by the embodiment of the present invention includes: an infrared camera module 1, a button control module 2, an intelligent image processing module 3, an image display module 4, a shooting prompt module 5, a power module 6, and a vibration bracelet 7.

[0057] The infrared camera module 1 is used to acquire infrared images to realize target imaging during the day and at night. The acquired images are sent to the intelligent image module in BT656 format for preprocessing and intelligent target detection, recognition and tracking. In addition, the infrared camera module also receives the serial port control of the intelligent image processing module to set the self-test, calibration and data format of the infrared camera.

[0058] Infrared camera module 1 is an uncooled infrared camera module. In order to image the target scene both during the day and at night, the present invention uses the finished uncooled infrared camera module available on the market. Its main performance is as follows:

[0059] Resolution: 640x512;

[0060] Frame rate: 50Hz;

[0061] Pixel size: 12 μm;

[0062] Lens focal length: 50mm;

[0063] Power consumption: 500mW;

[0064] Working temperature: -20℃—55℃;

[0065] Output interface: BT656 digital output interface;

[0066] The infrared BT656 digital video is sent to the BT656 channel of the intelligent image processing board through a flexible cable. The corresponding VI is configured by the program to output 640x512 resolution, 50Hz video, so that high-quality target and scene images can be collected during the day and at night.

[0067] Button control module 2 is used for the shooter to set the system's working mode and working parameters through buttons, adjust the image zoom, brightness and contrast, perform system power on and off operations, select and determine the shooting target, and other operations

[0068] like Fig.11 As shown, the intelligent image processing module 3 includes:

[0069] The acquisition interface module 31 is used for multi-channel image acquisition of the image sensor of the rifle sight;

[0070] The core processing module 32 includes a low-power SOC, a flash unit, a DDR unit, a clock unit, and an inter-board connection unit with the acquisition interface module;

[0071] The algorithm software module 33 is used for image processing of the matching hardware module gun aiming system, including a software underlying driver module, a configuration management module, a target detection module, a recognition algorithm design and implementation module, a UI interface design module and a task scheduling design module.

[0072] The recognition algorithm design and implementation module is composed of an automatic target distance measurement algorithm software module, an on-demand trajectory solution software module, and a shooting prompt software module, wherein:

[0073] The automatic target distance measurement algorithm software module automatically calculates the target distance using projection calculation method according to the target type and target frame width detected by the intelligent algorithm and the target standard size;

[0074] The on-demand ballistic solution software module calculates the target distance based on the target selected by the shooter that appears in the center of the scene, calculates the impact point at that distance on the illumination table and generates an impact point scale on the image, prompting the shooter to pay attention and adjust the muzzle to the impact point, and wait for the target to enter the vicinity of the impact point.

[0075] The internal intelligent image processing board is the HiSilicon Media Processing Platform MPP. The internal processing flow is as follows: Fig.10 As shown, it is mainly divided into video input (VI), video processing (VPSS), video encoding (VENC), video decoding (VDEC), video output (VO), regional management (REGION) and other modules.

[0076] Among them, the video processing (VPSS) module is the core. It receives the video input from the VI and adds it to the public video buffer pool as needed, establishes a video sequence comparison table, and obtains image data from the public video buffer according to the user's application module for various required algorithm processing. The processing results can be put back into the buffer after superimposing the information, or the image can be directly taken out from the buffer for encoding, compression, storage or output.

[0077] The main function of the automatic target distance measurement algorithm software module is to automatically calculate the target distance using the projection calculation method according to the target type and target frame width detected by the intelligent algorithm and the target standard size. The basic formula of the algorithm is as follows:

[0078] Do=(Lo / Li)×F

[0079] Where, Lo-------standard target width, for example, when the target is a person, Lo = 65cm;

[0080] Li-------Width of target frame, which is the number of pixels occupied by the detected target frame × 0.0012cm;

[0081] F--------Focal length of infrared camera;

[0082] Do-----The target distance calculated by the algorithm.

[0083] The main functions of the on-demand ballistic solution software module and the shooting prompt software are: calculate the target distance based on the target selected by the shooter that appears in the center of the scene, calculate the impact point at this distance on the illumination table and generate the impact point scale on the image, prompt the shooter to pay attention and adjust the muzzle to the impact point, and wait for the target to enter the vicinity of the impact point. The shooting prompt software uses the tracking software module to continuously track the target, calculate the distance deviation between the target and the impact point, and also calculate the target's moving speed. In the case of adding the target's moving vector, it predicts the proximity between the target and the impact point to determine whether the shooting conditions are met. If the shooting conditions are met, a shooting symbol is generated and flashed in real time on the image; at the same time, a shooting vibration command is issued to the NFC main control board, so that the shooter can perceive the shooting prompt on the image and the bracelet and shoot in time.

[0084] The calculation principle of shooting time with target motion prediction function is as follows Figure 5 shown.

[0085] The image size is M×N pixels, and the coordinate system points start from the upper left corner (0,0) to (M-1,N-1). Mt(xt,yt) is the target position at time t (image frame), Mt-1(xt-1,yt-1) and Mt+1(xt+1,yt+1) are the target positions at time t-1 and t+1 (image frame) respectively, and A(xa,ya) is the coordinate of the impact point. Conventional gun aiming always has a delay of 1 frame time during image acquisition, so at time t, it is necessary to estimate the target position at time t+1, and determine whether to shoot based on whether the target and the impact point intersect at time t+1. The judgment rule is to calculate whether the distance Do is less than the given shooting threshold. According to this target position prediction calculation method, the lag error of the shooting position caused by imaging delay can be eliminated.

[0086] In fact, the calculation of the distance Do between the target and the impact point involves the movement of the muzzle when the shooter moves the impact point scale toward the target, as well as the movement of the target itself. However, because the position of the impact point scale in the image is fixed, the movement of the target in the image is the result of the movement of the muzzle and the movement of the target itself. For the convenience of calculation, we only need to consider the change of the relative coordinates of the target between adjacent moments (image frames). For the prediction of the target position at time t+1, the interpolation fitting prediction method is usually used.

[0087] Considering the complexity of target motion, we use nonlinear fitting method to fit and predict the target coordinate values ​​x and y respectively. The fitting function is defined as:

[0088] f(t)=a+bt+ct 2

[0089] Here, t represents the time axis, and can be taken as the frame number t=0, 1, 2, ..., and f(t) can be set equal to x(t) and y(t) respectively to achieve the fitting of the target position x(t) and y(t) relative to time t.

[0090] x(t)=a+bt+ct 2

[0091] y(t)=d+et+ft 2

[0092] It can be seen that the above two sets of equations contain a total of 6 parameters a, b, c, d, e, and f. Only three target coordinates x(t) and y(t) values ​​at time t are needed to solve these 6 parameters. After the 6 parameters are determined, the position coordinates x(t+1) and y(t+1) of the target at the next moment can be predicted. In order to reduce the fitting error, the target position of several consecutive frames can also be added during fitting, and the fitting is performed according to the minimum mean square error. In this project, because the image frame rate is 50Hz and 50 images are available per second, a few more images can be added to improve the fitting accuracy. The present invention selects 12 fitting points. After the fitting is completed, the target position at the subsequent t+1 moment can be predicted. The prediction formula is:

[0093] x(t+1)=a+b(t+1)+c(t+1) 2

[0094] y(t+1)=d+e(t+1)+f(t+1) 2

[0095] The calculation formula that meets the shooting conditions is as follows:

[0096] Do = (x(t+1)-xa)) 2 +(y(t+1)-ya) 2 ≤Th0

[0097] Among them, Do-------the distance between the target and the impact point at time t+1,

[0098] Th0------The threshold for shooting.

[0099] In the fitting calculation, in order to adapt to the real-time changes in the target position, the parameter values ​​in the prediction formula are centrally fitted at each time t, and the values ​​used in the fitting are composed of the target position coordinates in the images of the 12 most recent time (frames) before the time t. The predicted value of the target position at the first 12 moments starting from time 0 when the selected target is initially selected is directly given by the target position at that moment detected by the intelligent algorithm. Starting from the 13th moment, the position at each time t+1 is calculated by the prediction formula.

[0100] Task scheduling design module, the task scheduling design module flow chart of the present invention is as follows Figure 4 As shown:

[0101] 1) Power on the sight, system initialization and self-test;

[0102] 2) Infrared image acquisition and image preprocessing (including histogram equalization, image contrast stretching, brightness adjustment, image denoising, image defogging, etc.);

[0103] 3) Automatically enter deep learning intelligent target detection, automatically detect the required personnel, vehicles, targets and other targets according to the target type requirements selected by the shooter, mark the target frame and target type, and automatically calculate the target distance based on the target type closest to the center of the gun.

[0104] 4) Receive the shooter's key command to determine whether to shoot at the target in the center of the image. If shooting is determined, the impact point is automatically calculated according to the calculated target distance and the impact point position scale is displayed; at the same time, the target tracking program is started to robustly track the target and output the target frame and target coordinates.

[0105] 5) During the tracking process, the shooting conditions are continuously calculated. When it is determined that the shooting conditions are met, a flashing prompt is generated near the impact point in the image, and a vibration signal is sent to the vibration control board. The vibration control board starts the vibration bracelet to vibrate, so that the shooter can feel the shooting prompt from the image and wrist, and then quickly pull the trigger to shoot.

[0106] 6) After shooting is completed, you can select the target again to shoot. When you don’t need to work, send a shutdown command to shut down the machine.

[0107] The image display module 4 mainly displays the images obtained by the intelligent image processing module, the intelligent target detection and recognition results, the impact point scale, information prompts, menu operation interface and other intuitive results, so that the shooter can intuitively see the target and the impact point scale, so as to aim at the target and pull the trigger when the intelligent shooting prompt is given.

[0108] The shooting prompt module 5 is used to generate a flashing shooting prompt on the image when the shooting conditions are met, and generate a vibration shooting prompt to the shooter through the NFC main control board and the matching vibration bracelet, including intelligent target ranging and intelligent shooting judgment reminder algorithms and software, and a vibration control board that vibrates through NFC technology. The intelligent target ranging algorithm of this module uses an intelligent target detection and recognition algorithm to quickly calculate the target distance according to the size of a standard person or object, thereby reducing the error of manual estimation, and because the laser rangefinder is omitted, the new gun sight is reduced in size, weight, and power consumption.

[0109] The shooting NFC main control board module and the vibration bracelet can use extremely low power consumption and extremely low radiation methods to transmit vibration information to the shooter's wrist vibration bracelet in a wireless manner, reminding the shooter to shoot in time and improve the hit rate. Vibration reminders on the battlefield can effectively avoid being discovered by the enemy, but if the vibration device is installed on the gun sight, its vibration effect is difficult to ensure that the shooter can perceive it, so it needs to be transmitted to the shooter's ear or wearable device in a wired or wireless manner. Considering that it is difficult and unreliable to install it directly on the ear during single-soldier combat, the present invention proposes to install the vibration device on the shooter's wrist in the form of a bracelet, which can be installed securely and ensure the shooter's perception of vibration. In order not to affect the shooter's movement, the present invention proposes a wireless connection method. Currently, short-range wireless communication methods include Bluetooth, WIFI, infrared and NFC technologies. The radiation intensity of Bluetooth and WIFI is relatively large, and the communication distance is about 10 meters, which makes it very easy to be discovered by the enemy's radio reconnaissance equipment; infrared communication technology has strong directionality, short distance, and good concealment, but it cannot work when there is an obstruction; for this reason, the present invention proposes to use NFC near-field communication technology to send the vibration control signal to the vibration bracelet using NFC communication.

[0110] In this embodiment, the NFC vibration control sending device is installed on the gun sight, and the NFC vibration receiving device is installed on the shooter's wrist, ensuring that the vibration can be reliably transmitted and executed within 10 cm. The wireless vibration control method proposed by the present invention can greatly improve the shooter's concealment and the reliability of vibration transmission.

[0111] The present invention adopts NXP's NFC chip PN7150 chip to realize the vibration control board. The design of the vibration control board adopts the typical circuit recommended by NXP. The main processor circuit of the PN7150 chip is as follows: Figure 6 As shown, the I2C_SDA and I2C_SCL signals are connected to the intelligent image processing board of the gun sight, which are used to configure the PN7150 chip and control the sending of the shooting vibration signal. In order to ensure that the communication distance is close to or greater than 10cm, the antenna power supply voltage VANT is provided by the +5V voltage of the intelligent image processing board. Its transmitting signal terminals TX1, TX2 and receiving signal terminals RX1, RX2 are connected to the NFC antenna circuit. The antenna circuit diagram is shown in Figure 7 As shown in the figure, in order to ensure reliable communication within 10cm, PN7150 is configured to work in the ISO / IEC15693 protocol mode, thereby meeting the long-distance working mode of NFC. For the event transmission of shooting vibration, as little data as possible is used, and only the vibration bracelet number needs to be verified and the vibration event is sent.

[0112] The power module 6 leads out 5V to provide power to the vibration control board. Because the vibration control board uses an extremely low-power NFC host with a maximum power consumption of no more than 420mW, there is no need to redesign the power module.

[0113] The vibration bracelet 7 integrates a small flat vibration motor, an NFC communication module, an ultra-low power single-chip host, a vibrator drive circuit and a button battery into a micro bracelet, which can work for a long time and realize safe and timely shooting vibration reminders.

[0114] In order to facilitate design, programming and debugging, the vibration bracelet also uses the same main processor PN7150 chip, and its main processor circuit and antenna circuit are respectively Figure 6 and Figure 7 The vibration bracelet is as follows: Figure 8 As shown, an ultra-low power single-chip microcomputer is added, and the simplest configuration is adopted, that is, the single-chip microcomputer only needs to output I2C signals and PWM signals. The I2C signal is used to configure PN7150, and the PWM signal drives the vibration of the motor and controls the vibration intensity through the drive circuit. The vibration motor adopts a flat eccentric vibration motor, which achieves a significant vibration effect with a small volume. The button battery is used to provide the power required for the vibration bracelet, which is a rechargeable lithium battery. The bracelet strap adopts an elastic strap for easy wearing and removal. The single-chip microcomputer uses the ultra-low power consumption 10-pin package 8-bit single-chip microcomputer ML51BB9AE of Nuvoton Company. Its standby power consumption is only 1 microampere, and it is only 13 microamperes when working at low power consumption. The normal working power consumption does not exceed 80 microamperes, which is very suitable for battery-powered embedded devices. The drive circuit uses the simplest MOS tube to convert the PWM pulse control signal into a certain level of voltage to control the vibration of the vibration motor. ML51BB9AE and MOS drive circuit and vibration motor circuit are shown in the figure Fig. 9 shown.

[0115] As attached Figure 3 As shown, the novel gun aiming design method with intelligent shooting prompting function provided by the embodiment of the present invention comprises the following steps:

[0116] S101, using circuit board wiring software to create independent folders for the NFC main control board circuit and the vibration bracelet circuit board, and wiring and board making as needed;

[0117] S102, purchase related equipment according to the infrared camera module, button operation module hardware selection instructions, and connection instructions;

[0118] S103, designing and manufacturing an image display module according to the image display module selection and connection instructions;

[0119] S104, using HIMPP HiSilicon software development platform, based on the algorithm software code, adds automatic target distance measurement algorithm software module, trajectory solution software module and shooting prompt software module, NFC main control board control software, directly compiles the software to form running code, downloads it to the flash unit of the core processing module, executes infrared image acquisition, interface configuration, target detection and recognition, distance measurement, on-demand impact point solution, target tracking and optimal shooting time calculation of intelligent shooting prompts, and performs shooting prompts and signal sending when the attack conditions are met;

[0120] S105, using NFC dedicated chip, equipped with single-chip microcomputer and vibration motor, the watch strap is designed as a vibration bracelet. Write single-chip microcomputer software to realize the working mode configuration of the vibration bracelet NFC chip, the PWM vibration intensity control imaging of the vibration motor, compile and debug and pass the joint test with the NFC main control board, form the running code, download it to the single-chip microcomputer flash, execute the intelligent shooting vibration signal reception and provide shooting vibration prompts;

[0121] S106, in the UI interface editing software code, modify the code as needed;

[0122] S107, in the driver software, configuration management software, and image acquisition software codes, modify, compile, and debug the corresponding software codes according to the infrared image resolution, frame rate, and image type;

[0123] S108, assemble the new gun sight with intelligent shooting prompt function according to the designed new gun sight block diagram, and conduct functional performance test.

[0124] The present invention will be further described below in conjunction with the embodiments.

[0125] Attached Figure 2The relationship between each module is given. The design of a new gun sight with intelligent shooting reminder function includes: infrared camera module, button control module, image display module, intelligent image processing module, shooting prompt module, power module, and vibration bracelet. Based on the original intelligent target detection algorithm, this method proposes an intelligent target distance measurement algorithm and a bullet impact point position solution method; based on the original fire control calculation method, the optimal attack time reminder function is added, and the image character flashing and vibration prompt method are used to remind the shooter to shoot, thereby realizing rapid aiming and shooting, and enhancing shooting accuracy and efficiency. Combined with the above improvements, a non-cooled infrared camera module, an image display module based on a micro OLED screen and an eyepiece, and a button operation module are used to design a new gun sight with intelligent shooting prompt function. The sight designed by the present invention can be used day and night, and can automatically detect and identify targets, automatically measure target distance, intelligently calculate bullet impact points, and intelligently provide target shooting prompts. It can effectively reduce the difficulty of shooters in finding targets, accurately control the shooting moment, and improve the intelligence and automation level of firearms.

[0126] The following will be combined with the attached Figure 3 The novel gun aiming design method with intelligent shooting reminder function provided by the embodiment of the present invention is further described.

[0127] (1) Use EDA circuit board wiring software pads to create independent folders for the NFC main control board circuit and the vibration bracelet circuit board, and perform wiring and board making as needed;

[0128] (2) Purchase related equipment according to the infrared camera module, button operation module hardware selection instructions, and connection instructions;

[0129] (3) Using the HIMPP HiSilicon software development platform, on the basis of the algorithm software code, add the automatic target distance measurement algorithm software module, the trajectory solution software module and the shooting prompt software module, the NFC main control board control software, directly compile the software to form the running code, download it to the flash unit of the core processing module, and execute the infrared image acquisition, interface configuration, target detection and recognition, distance measurement, on-demand impact point solution, target tracking and optimal shooting time calculation of intelligent shooting prompts, and perform shooting prompts and signal sending when the attack conditions are met;

[0130] (4) Use NFC dedicated chip, equipped with single-chip microcomputer and vibration motor, and design a vibration bracelet for the watch strap. Write single-chip microcomputer software to realize the configuration of the working mode of the vibration bracelet NFC chip, the PWM vibration intensity control imaging of the vibration motor, compile and debug, and pass the joint test with the NFC main control board to form the running code, download it to the single-chip microcomputer flash, execute the reception of the intelligent shooting vibration signal and provide shooting vibration prompts;

[0131] (5) Use NFC dedicated chip, equipped with single-chip microcomputer and vibration motor, and design a vibration bracelet for the watch strap. Write single-chip microcomputer software to realize the configuration of the working mode of the vibration bracelet NFC chip, the PWM vibration intensity control imaging of the vibration motor, compile and debug, and pass the joint test with the NFC main control board to form the running code, download it to the single-chip microcomputer flash, execute the reception of the intelligent shooting vibration signal and provide shooting vibration prompts;

[0132] (6) In the UI interface editing software code, modify the code according to user requirements to meet actual usage needs;

[0133] (7) In the driver software, configuration management software, and image acquisition software code, modify, compile, and debug the corresponding software code according to the infrared image resolution, frame rate, and image type;

[0134] (8) Assemble the new gun sight with intelligent shooting prompt function according to the designed block diagram of the new gun sight, and conduct functional performance tests.

[0135] During the development, debugging or operation phase, the relevant designs and programs are modified as needed to meet the actual needs. The present invention uses Pads for the schematic diagram and wiring design of the hardware module, uses the HIMPP platform to design the algorithm software under Linux, and uses the Keil software platform for programming and debugging of the single-chip microcomputer.

[0136] Developers can modify and upgrade the hardware according to the module hardware design file, and upgrade the program function through software modification. Because actual development and debugging tests have been provided, when the use environment is exactly the same, only the board making and software downloading according to the file provided by the present invention can realize the intelligent shooting prompt function. With the verified schematic diagram and development source code, designers can easily modify the design data according to application requirements and change the parameter configuration to meet project needs.

[0137] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A new type of gun sight with intelligent shooting prompt function, characterized in that: The new gun sight with intelligent shooting prompt function includes: The intelligent image processing module (3) is used to collect infrared images and button operation signals, automatically detect and identify targets, automatically measure target distances and calculate impact point positions as required, and perform image information superposition and display output in real time; the intelligent image processing module (3) comprises: an acquisition interface module (31) for collecting multiple images of a gun sight image sensor; a core processing module (32) comprising a low-power SOC, a flash unit, a DDR unit, a clock unit and an inter-board connection unit with the acquisition interface module; an algorithm software module (33) for image processing of a matching hardware module gun sight system, comprising a software bottom-layer driver module, a configuration management module, a target detection module, a recognition algorithm design and implementation module, a UI interface design module and a task scheduling design module; the recognition algorithm design and implementation module is composed of an automatic target distance measurement algorithm software module, an on-demand trajectory calculation software module and a shooting prompt software module, wherein: The automatic target distance measurement algorithm software module automatically calculates the target distance using projection calculation method according to the target type and target frame width detected by the intelligent algorithm and the target standard size; The on-demand ballistic solution software module calculates the target distance based on the target selected by the shooter and appears in the center of the scene, calculates the impact point at the distance on the illumination table and generates the impact point scale on the image, prompting the shooter to pay attention and adjust the muzzle to the impact point, and wait for the target to enter the vicinity of the impact point; the shooting prompt software uses the tracking software module to continuously track the target, calculate the distance deviation between the target and the impact point, and also calculates the target's moving speed. With the addition of the target's moving vector, it predicts the proximity between the target and the impact point to determine whether the shooting conditions are met. If the shooting conditions are met, a shooting symbol is generated and flashed in real time on the image; at the same time, a shooting vibration command is issued to the NFC main control board, so that the shooter can perceive the shooting prompt on the image and the bracelet, and shoot in time; An infrared camera module (1) is used to acquire infrared images both during the day and at night; The shooting prompt module (5) is used to generate a flashing shooting prompt on the image when the shooting conditions are met, and at the same time send vibration information to the vibration bracelet through the NFC main control board to prompt the shooter to shoot; A vibration bracelet (7) is worn on the shooter's wrist and is used to receive the NFC vibration signal sent by the shooting module and generate vibration to prompt the shooter to shoot; A button operation module (2), used for the shooter to control the working mode and state of the sight through buttons; An image display module (4) is used to display the acquired infrared image and superimposed information on a micro OLED screen, and to allow the shooter to observe the image and read the shooting information through an eyepiece; The power module (6) is used to convert the 3.3V power supply of the battery into the voltage required by each module of the sight.

2. The novel gun sight with intelligent shooting prompt function according to claim 1 is characterized in that: The shooting prompt module (5) is connected to a vibration control module (51) and a shooting prompt algorithm module (52), and the vibration control module (51) is connected to an NFC main control board (511).

3. The new gun sight with intelligent shooting prompt function according to claim 1 is characterized by: The vibration bracelet (7) comprises an NFC main control and driving board (72), a flat vibration motor (73), and a watch strap (74).

4. The novel gun sight with intelligent shooting prompt function according to claim 1 is characterized in that: The shooting prompt module (5) and the vibration bracelet (7) are wirelessly connected by respectively being provided with a loop antenna A (512) and a loop antenna B (71).

5. The new gun sight with intelligent shooting prompt function according to claim 1 is characterized by: The infrared camera module (1) is a non-cooled infrared camera module, and uses an infrared BT656 digital video to connect to the BT656 channel of the intelligent image processing module (3) via a flexible connection line.

6. A method for designing a new type of gun sight with intelligent shooting prompt function according to any one of claims 1 to 3, characterized in that: The design method of the novel gun sight with intelligent shooting prompt function comprises: Step 1: Use the circuit board wiring software to create independent folders for the NFC main control board circuit and the vibration bracelet circuit board, and make wiring and boards as needed; Step 2: Select the uncooled infrared camera module, button operation module, image display module, and combine the manufactured NFC main control board, vibration bracelet, intelligent image processing module, and power module to design a new gun sight; Step 3: Using the HIMPP HiSilicon software development platform, on the basis of the algorithm software code, add the automatic target distance measurement algorithm software module, the on-demand trajectory solution software module, the shooting prompt software module, and the control software of the NFC main control board, directly compile the software to form the running code, download it to the flash unit of the core processing module, and execute the infrared image acquisition, interface configuration, target detection and recognition, distance measurement, on-demand impact point solution, target tracking and optimal shooting time calculation of intelligent shooting prompts, and perform shooting prompts when the attack conditions are met; Step 4: Use NFC dedicated chip, equipped with single-chip microcomputer and vibration motor, design vibration bracelet for watch strap, write single-chip microcomputer software, realize the working mode configuration of vibration bracelet NFC chip, PWM vibration intensity control imaging of vibration motor, compile and debug, and pass the joint test with NFC main control board, form running code, download it to single-chip microcomputer flash, execute intelligent shooting vibration signal reception and perform shooting vibration prompt; Step 5: In the driver software, configuration management software, and image acquisition software code, modify, compile, and debug the corresponding software code according to the infrared image resolution, frame rate, and image type; Step 6: In the target detection and recognition algorithm software code, the deep learning target detection model is trained and updated according to the target type and application environment to be attacked; Step 7: Edit the software code in the UI interface and modify the code as needed; Step eight, assemble the new gun sight with intelligent shooting prompt function according to the overall design block diagram, and conduct functional performance test.

7. A program storage medium for receiving user input, characterized in that: The computer program stored in the storage medium enables the electronic device to execute the design method of a new type of gun sight with an intelligent shooting prompt function as described in claim 6.

8. A computer program product stored on a computer readable medium, characterized in that: It includes a computer-readable program, which, when executed on an electronic device, provides a user input interface to implement the design method of a new gun sight with an intelligent shooting prompt function as claimed in claim 6.

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