CN114909947B - Rifle shooting bullet counting method and device based on LORA (local area network of things) - Google Patents

Abstract

The invention discloses a rifle shooting bullet counting method and device based on the LORA Internet of Things, which includes: detecting the vertical acceleration pulse signal of the gun body at the target position where the currently fired bullet is; comparing the vertical acceleration pulse signal of the gun body with the threshold voltage, if If the acceleration pulse signal in the vertical direction of the gun body is not less than the threshold voltage, the square wave signal is shaped and output; the square wave signal output by the shaping is counted to obtain the number of bullets fired by the gun at each target position. The shooting bullet counting device provided by the present invention is small in size and light in weight: (1) An integrated three-axis acceleration sensor is used to detect the acceleration signal of the movement of the gun when bullets are fired, and the size is very small, and the peripheral circuit is simple and requires few devices; (2) The integrated LORA wireless module is small in size and integrates CPU and memory chips inside, making the circuit simple and the circuit board area small.

Description

Rifle shooting bullet counting method and device based on LORA Internet of Things

Technical field

The invention relates to a rifle shooting bullet counting method based on the LORA Internet of Things and a rifle shooting bullet counting method device based on the LORA Internet of Things, and belongs to the technical field.

Background technique

Rifle live ammunition shooting is an important training and assessment subject for grassroots troops. Real-time monitoring of the number of bullets fired at each shooting position can promptly detect whether individual personnel keep bullets privately, thus avoiding safety management accidents in the troops. In addition, the number of bullets fired is monitored in real time, and the number of bullets consumed in shooting training is statistically managed to improve the scientific and refined level of ammunition management. Therefore, real-time detection and counting of bullets fired from rifles is of great significance.

When a rifle is fired, it will produce noise, high-temperature exhaust smoke from the muzzle, and thrown shells. The measurement methods and shortcomings of existing bullet counting devices are as follows: sound sensors are used to measure the sound of bullet firing, but each shooting position seriously interferes with each other, and the measurement accuracy is Poor; use infrared or ultraviolet sensors to measure the infrared or ultraviolet characteristics of bullets when they are fired, but the installation is troublesome, inconvenient to operate and the measurement accuracy is not high; using infrared through-fire to measure the projectile shell throw is also inconvenient to operate and has poor anti-interference ability and other deficiencies; a camera is installed above the shooting position for detection through video image analysis, but the equipment cost is high, the installation is complex, and is not suitable for outdoor shooting ranges; based on the magnetoresistive sensor, the magnetic field changes caused by the movement of the bullet in the barrel are measured, and the Bullet shots measure and count, but the installation of the device on the barrel interferes with the firing operation.

In addition, most of the above measurement methods require power supply to the device through special lines, or signal lines to transmit measurement results to facilitate centralized monitoring. The wiring in the shooting range is complicated and inconvenient to use. Some also use Zigbee wireless transmission method for centralized monitoring, but this method has short transmission distance and poor anti-interference ability, so it is not suitable for use in complex environments.

The integrated three-axis acceleration sensor based on micro-electromechanical technology can simultaneously measure acceleration signals in the three directions of X, Y, and Z. It is small in size, light in weight, low in operating voltage, and low in cost. It can be directly welded on the circuit board; LORA Materials The networking uses spread spectrum communication technology, which has long communication distance and good reliability. The LORA communication module is small in size, low in power consumption, and has an embedded CPU and powerful functions. The development of these advanced technologies and devices has made it possible to develop a new bullet counting device that is small in size, light in weight, does not require wiring, can be easily installed on the gun body, and does not cause interference to aiming and shooting. Through LORA communication, multiple gun positions in the shooting range can be conveniently and centrally monitored without wiring, making it easy to use.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the shortcomings of the existing technology and provide a method and device for counting rifle bullets based on the LORA Internet of Things, which can monitor multiple gun positions in the shooting range in real time, is easy to use and operate, and counts rifle bullets with high accuracy. monitor.

In order to achieve the above purpose, the present invention provides a rifle shooting bullet counting method based on LORA Internet of Things, including:

Detect the acceleration pulse signal in the vertical direction of the gun body at the target position where the current bullet is fired;

Compare the vertical acceleration pulse signal of the gun body with the threshold voltage. If the vertical acceleration pulse signal of the gun body is not less than the threshold voltage, the square wave signal will be shaped and output;

Count the square wave signal output by the shaping to obtain the number of bullets fired by the gun at each target position.

Priority, after all shooting is completed or the preset shooting time is reached, the number of bullets fired by the gun at each target position is compared with the actual number of bullets loaded by the corresponding gun. If the number of bullets fired by the gun obtained is less than the actual number of bullets loaded by the corresponding gun. number, an alarm will appear.

Preferably, the value of the threshold voltage is the peak average value of the acceleration pulse signal in the vertical direction of the gun body obtained by multiple actual measurements on site in advance.

First, count the square wave signal output by the shaping to obtain the number of bullets fired by the gun at each target position, including:

After shaping and outputting the square wave signal, the corresponding target number is transmitted to the service terminal;

The service terminal parses the number of the target, and the number of bullets fired by the gun corresponding to the target is increased by 1.

Priority, the service terminal parses the target number and takes the following steps:

(A) Store the received target number in the data string;

To judge the validity of the target number, use the Mid function to intercept the first digit in the data string. If it is "#", then the target number is valid data and execute step B. Otherwise, end the run;

(B) Use the Mid function to get the second and third digits in the data string. If it is "0n", it means target location n, n∈[1,N], N is the total number of targets, and target location n Add 1 to the number of bullets fired by the gun at the target position, and compare the number of bullets shot by the gun at the target position with the actual number of bullets loaded by the corresponding gun. If the number of bullets shot by the gun at the target position reaches the actual number of bullets loaded by the corresponding gun, it means that all shots are fired. Finish;

(C) After multiple rounds of shooting, count the number of bullets fired by the gun in each round at each target position and the total number of bullets fired by the gun in multiple rounds to obtain the total bullet consumption.

Priority is given to transmitting the target number to the service terminal through LORA wireless communication.

Preferably, a rifle shooting bullet counting device based on the LORA Internet of Things is used to perform the above-mentioned method, including an integrated three-axis acceleration sensor, an acceleration signal comparison shaping circuit, an integrated LORA wireless module and a monitoring host, and an integrated three-axis acceleration sensor. The acceleration sensor and acceleration signal comparison shaping circuit are electrically connected to the integrated LORA wireless module. The integrated LORA wireless module is wirelessly connected to the monitoring host. The integrated three-axis acceleration sensor is used to detect the vertical acceleration pulse of the gun body at the target position where the current bullet is fired. Signal, acceleration signal comparison shaping circuit is used to compare the vertical acceleration pulse signal of the gun body with the threshold voltage. The integrated LORA wireless module is used to shape the output square wave signal and transmit the corresponding target number to the service terminal for monitoring. The host is used as the carrier of the service terminal.

Preferably, the integrated three-axis acceleration sensor model is MMA7361LC sensor;

The integrated LORA wireless module model is wireless module M-HL10;

The monitoring host includes a server and a LORA wireless router, and the server is electrically connected to the LORA wireless router;

The acceleration signal comparison and shaping circuit includes an LM393 dual voltage comparator, resistor R1, resistor R2, resistor R3, resistor R4 and capacitor C3. One end of resistor R4 is connected to VCC, and the other end of resistor R4 is connected to one end of resistor R1 and one end of resistor R3. The other end of resistor R3 Ground, the other end of resistor R1 and one end of resistor R2 are interconnected with the positive input end of the LM393 dual voltage comparator, the other end of the resistor R2 is connected to the output end of the LM393 dual voltage comparator, and the negative input end of the LM393 dual voltage comparator is connected in series with capacitor C3 ground;

The vertical acceleration pulse signal Z of the gun body is input to the negative input terminal of the LM393 dual voltage comparator, and the threshold voltage Vz is input to the positive input terminal of the LM393 dual voltage comparator;

It also includes a powerful magnet, an integrated three-axis acceleration sensor, an acceleration signal comparison shaping circuit and an integrated LORA wireless module fixed on the powerful magnet, which is adsorbed on the butt of the gun.

Preferably, an electronic device includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, the steps of any one of the above methods are implemented.

Preferably, a computer-readable storage medium has a computer program stored thereon, and when the computer program is executed by a processor, the steps of any of the above methods are implemented.

Beneficial effects achieved by the present invention:

1. The shooting bullet counting device provided by the present invention is small in size and light in weight: (1) It uses an integrated three-axis acceleration sensor to detect the acceleration signal of the gun movement when bullets are fired. It is very small in size, has simple peripheral circuits and requires few devices; ( 2) The integrated LORA wireless module is small in size and integrates CPU and memory chips inside, making the circuit simple and the circuit board area small.

2. The invention is easy to install and use and does not affect normal aiming and shooting: (1) It adopts wireless signal transmission and does not require external signal transmission lines; (2) It uses high-energy-density small lithium-ion batteries for power supply and does not require external wired power supply lines. Therefore, the shot bullet counting device is packaged as a small metal box, which is fixed on the gun through a strong magnetic sheet, making it easy and convenient to install and remove.

Description of the drawings

Figure 1 is a functional block diagram of the bullet counting device and monitoring host of the present invention;

Figure 2 is a waveform diagram of the acceleration pulse signal in the vertical direction of the gun body when the bullet of the present invention is ejected.

Figure 3 is a circuit diagram of the acceleration signal comparison and shaping circuit;

Figure 4 is the monitoring host software flow chart.

Figure 5 shows the monitoring screen of the bullet counting of multiple shooting positions of the monitoring host.

Detailed ways

The following examples are only used to more clearly illustrate the technical solutions of the present invention, but cannot be used to limit the scope of the present invention.

When a rifle bullet is fired, the gunpowder explosion will produce a large amount of gas and expand rapidly to generate thrust to launch the warhead from the barrel. At the same time, the interaction of forces will produce a reverse impact force, which is what we call recoil. This is mainly This will cause movement of the gun in the direction of the barrel and vertical bounce of the gun. Every time the rifle is fired, a corresponding acceleration signal is generated. Through the acceleration sensor S installed on the gun body, the vertical acceleration pulse signal Z of the gun body generated when the rifle is fired is collected as a basis for judging whether a bullet is fired.

Rifle shooting bullet counting method based on LORA IoT, including:

Detect the acceleration pulse signal in the vertical direction of the gun body at the target position where the current bullet is fired;

Compare the vertical acceleration pulse signal of the gun body with the threshold voltage. If the vertical acceleration pulse signal of the gun body is not less than the threshold voltage, the square wave signal will be shaped and output;

Count the square wave signal output by the shaping to obtain the number of bullets fired by the gun at each target position.

Further, in this embodiment, after all shooting is completed or the preset shooting time is reached, the number of bullets fired by the gun at each target position is compared with the actual number of bullets loaded by the corresponding gun. If the number of bullets fired by the gun obtained is less than the number of bullets fired by the corresponding gun. If the actual number of ammunition loaded is exceeded, an alarm will appear.

Furthermore, in this embodiment, the value of the threshold voltage is the peak average value of the acceleration pulse signal in the vertical direction of the gun body obtained by multiple actual measurements on site in advance.

Further, in this embodiment, the square wave signal output by the shaping is counted to obtain the number of bullets fired by the gun at each target position, including:

After shaping and outputting the square wave signal, the corresponding target number is transmitted to the service terminal;

The service terminal parses the number of the target, and the number of bullets fired by the gun corresponding to the target is increased by 1.

Further, in this embodiment, the target number is transmitted to the service terminal through LORA wireless communication.

Further, in this embodiment, the rifle shooting bullet counting device based on the LORA Internet of Things is used to perform the above-mentioned method, including an integrated three-axis acceleration sensor, an acceleration signal comparison and shaping circuit, an integrated LORA wireless module and a monitoring host, The integrated three-axis acceleration sensor and the acceleration signal comparison shaping circuit are electrically connected to the integrated LORA wireless module. The integrated LORA wireless module is wirelessly connected to the monitoring host. The integrated three-axis acceleration sensor is used to detect the gun body at the target position of the current shooting bullet. The acceleration pulse signal in the vertical direction, the acceleration signal comparison shaping circuit is used to compare the acceleration pulse signal in the vertical direction of the gun body with the threshold voltage. The integrated LORA wireless module is used to shape and output the square wave signal, and then transmit the corresponding target number to Service terminal, monitoring host is used as the carrier of service terminal.

Further, the model of the integrated three-axis acceleration sensor in this embodiment is the MMA7361LC sensor;

The integrated LORA wireless module model is wireless module M-HL10;

The monitoring host includes a server and a LORA wireless router, and the server is electrically connected to the LORA wireless router;

The acceleration signal comparison and shaping circuit includes an LM393 dual voltage comparator, resistor R1, resistor R2, resistor R3, resistor R4 and capacitor C3. One end of resistor R4 is connected to VCC, and the other end of resistor R4 is connected to one end of resistor R1 and one end of resistor R3. The other end of resistor R3 Ground, the other end of resistor R1 and one end of resistor R2 are interconnected with the positive input end of the LM393 dual voltage comparator, the other end of the resistor R2 is connected to the output end of the LM393 dual voltage comparator, and the negative input end of the LM393 dual voltage comparator is connected in series with capacitor C3 ground;

The vertical acceleration pulse signal Z of the gun body is input to the negative input terminal of the LM393 dual voltage comparator, and the threshold voltage Vz is input to the positive input terminal of the LM393 dual voltage comparator;

It also includes a powerful magnet, an integrated three-axis acceleration sensor, an acceleration signal comparison shaping circuit and an integrated LORA wireless module fixed on the powerful magnet, which is adsorbed on the butt of the gun.

Further, in this embodiment, an electronic device includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, any one of the above methods is implemented. A step of.

Further, in this embodiment, there is a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by the processor, the steps of any of the above methods are implemented.

There are many models available for the above-mentioned components of resistor R1, resistor R2, resistor R3, resistor R4 and capacitor C3 in the prior art. Those skilled in the art can select appropriate models according to actual needs. This embodiment will not give examples one by one.

The invention discloses a method and system for counting rifle bullets based on the LORA Internet of Things, which includes a battery-powered bullet counting device with LORA wireless communication function installed on the gun and a remotely arranged monitoring host with LORA wireless communication function. Centralized monitoring and management of multiple target positions in the shooting range can be carried out. The shooting bullet counting device is battery-powered and has no external connection for power supply. It is small in size and light in weight. It is simple and convenient to install on the gun and does not affect normal shooting. It has LORA communication function. The monitoring host collects each shooting bullet counting device in real time through the LORA Internet of Things. Perform statistical analysis on the number of bullets fired.

Shot bullet counting devices include:

(10) Integrated three-axis acceleration sensor: detects the acceleration pulse signal of the gun body movement when the gun bullet is fired.

(20) Acceleration signal comparison shaping circuit: Compares the acceleration pulse signal of gun body movement with the threshold voltage, shapes and outputs a square wave signal;

(30) Integrated LORA wireless module: detects square wave signals. Each square wave signal detected indicates that the gun fired a bullet, and the number of bullets fired by the gun increases by one;

The number of bullets fired by the gun is transmitted via LORA wireless transmission: through LORA wireless communication, the number of bullets fired by the gun is sent out for centralized statistical analysis by the monitoring host;

Monitoring host: Receive the number of bullets fired by multiple guns from multiple bullet counting devices through the LORA router, and perform statistical analysis on the number of bullets fired by each gun.

The acceleration signal comparison shaping circuit is used to shape the vertical acceleration pulse signal of the gun body into a square wave signal, so as to facilitate subsequent counting of the vertical acceleration pulse signal of the gun body. The specific content is as follows:

The acceleration signal comparison and shaping circuit uses a voltage comparison chip to compare the vertical acceleration pulse signal Z of the gun body with the threshold voltage Vz. When the peak value of the vertical acceleration pulse signal Z of the gun body is not less than the threshold voltage Vz, a square wave signal Rz is output. The value of the threshold voltage is the peak average value of the acceleration pulse signal in the vertical direction of the gun body obtained from multiple actual on-site measurements.

The integrated LORA wireless module M-HL10 is used to detect and count square wave signals, obtain the number of bullets fired by the gun, and wirelessly transmit the number of bullets fired by the gun to the monitoring host. The specific content is as follows:

The wireless module M-HL10 is a LORA communication module, which integrates the HC32L136 microprocessor and LORA signal transceiver circuit. Initialize the general input and output port GPIO3 of the wireless module M-HL10 to the input mode for detecting the square wave signal Rz. Every time a square wave signal Rz is detected indicating that a bullet has been fired, the number of bullets fired by the gun is increased by 1.

The wireless module M-HL10 sends the number of bullets fired by the gun through the LORA wireless channel of the LORA signal transceiver circuit, and the LORA communication module of the centralized monitoring host receives it.

The monitoring host receives the number of bullets fired by each gun sent by the bullet counting device to count, analyze and alarm the number of bullets fired by each gun. The specific content is as follows:

Receive the bullet count value sent by each fired bullet counting device through the LORA wireless channel;

The monitoring software provides corresponding software functions according to the requirements for shooting bullet management: comparative analysis of the number of bullets fired by each gun and the number of bullets issued. When the number of bullets fired by a gun is less than the number of bullets issued after a round of shooting, an alarm is issued; statistics of this training ( Assessment) The total number of bullets consumed by shooting.

The MMA7361LC sensor chip used in this design is a low-power micro-mechanical three-axis acceleration sensor chip. It has internal functions such as signal conditioning, low-pass filter, temperature compensation and self-test. The acceleration signal has plus or minus 1.5g and plus or minus 6g. Two measuring ranges are available, and the 1.5g measuring range is used in this design.

According to the actual measured acceleration signal amplitude, take the threshold voltage of the comparator Vz=2.2V, and appropriately select the values of R ₃ and R ₄ in resistor Figure 4.

The LORA network supports multi-channel communication. The LORA module of each gun is set to a different channel frequency, so bullet counting for multiple guns can be achieved.

Communication between the gateway and the monitoring host: The monitoring host software uses the Winsock control in VB to connect the monitoring host to the LORA gateway. Set the parameters Winsock1.RemoteHost = "192.168.0.178" and Winsock1.RemotePort =4001 to configure the gateway as a remote host, and then configure the gateway as a remote host through Winsock1 The .Connect method sends a connection request to the LORA gateway. After the LORA gateway is powered on, it is in a waiting state for connection. When it receives the connection request, it automatically receives the request and establishes a connection with the monitoring host. Clicking the "activate" button on the monitoring host screen as shown in Figure 5 activates the counting work of the shooting bullet counting device; before receiving this signal, the device does not measure and is in a waiting activation state, thereby avoiding During the preparations, the gun shake signal task was mistakenly used as a shooting signal. The monitoring host sends information to the bullet counting device to start working.

Data reception and bullet counting: When the LORA gateway receives the gun shooting bullet count signal sent from the LORA wireless module, Winsock triggers the DataArrival event and executes the following procedures:

In this embodiment, the service terminal parses the target number and adopts the following steps:

(A) Store the received target number in the data string;

To judge the validity of the target number, use the Mid function to intercept the first digit in the data string. If it is "#", then the target number is valid data and execute step B. Otherwise, end the run;

(B) Use the Mid function to get the second and third digits in the data string. If it is "0n", it means target location n, n∈[1,N], N is the total number of targets, and target location n Add 1 to the number of bullets fired by the gun at the target position, and compare the number of bullets shot by the gun at the target position with the actual number of bullets loaded by the corresponding gun. If the number of bullets shot by the gun at the target position reaches the actual number of bullets loaded by the corresponding gun, it means that all shots are fired. Finish;

(C) After multiple rounds of shooting, count the number of bullets fired by the gun in each round at each target position and the total number of bullets fired by the gun in multiple rounds to obtain the total bullet consumption.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each process and/or block in the flowchart illustrations and/or block diagrams, and combinations of processes and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine, such that the instructions executed by the processor of the computer or other programmable data processing device produce a use A device for realizing the functions specified in a process or processes in a flowchart and/or a block or blocks in a block diagram.

These computer program instructions may also be stored in a computer-readable memory that causes a computer or other programmable data processing apparatus to operate in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction means, the instructions The device implements the functions specified in a process or processes in the flowchart and/or in a block or blocks in the block diagram.

These computer program instructions may also be loaded onto a computer or other programmable data processing device, causing a series of operating steps to be performed on the computer or other programmable device to produce computer-implemented processing, thereby executing on the computer or other programmable device. Instructions provide steps for implementing the functions specified in a process or processes of a flowchart diagram and/or a block or blocks of a block diagram.

The above are only preferred embodiments of the present invention. It should be noted that those of ordinary skill in the art can also make several improvements and modifications without departing from the technical principles of the present invention. These improvements and modifications It should also be regarded as the protection scope of the present invention.

Claims (8)

1. The rifle shooting bullet counting method based on the LORA internet of things is characterized by comprising the following steps of:

detecting a gun body vertical acceleration pulse signal of a target position where a bullet is currently shot;

comparing the gun body vertical acceleration pulse signal with threshold voltage, and shaping and outputting square wave signals if the gun body vertical acceleration pulse signal is not smaller than the threshold voltage;

counting the square wave signals output by the integral shape to obtain the number of the gun shots of each target position;

the counting the square wave signals outputted by the integral shape to obtain the number of the gun shot bullets of each target position comprises the following steps:

after shaping and outputting square wave signals, transmitting the numbers of the corresponding target positions to a service terminal;

the service terminal analyzes the number of the target, and the number of the gun shooting bullets corresponding to the target is increased by 1;

the service terminal analyzes the number of the target, and the method comprises the following steps:

(A) Storing the number of the received target bit into a data character string;

b, judging the effectiveness of the number of the target, intercepting the first bit in the data character string by using a Mid function, if the first bit is "#", the number of the target is effective data, executing the step B, and otherwise, ending the operation;

(B) Taking the second bit and the third bit in the data character string by using a Mid function, if the number is 0N, the number is N number target bits, N epsilon [1, N ], N is the total number of target bits, the number of gun shooting bullets of the N number target bits is increased by 1, the number of gun shooting bullets of the target bits is compared with the actual loading number of the corresponding gun, and if the number of gun shooting bullets of the target bits reaches the actual loading number of the corresponding gun, the shooting is completely finished;

(C) After multiple rounds of shooting, counting the number of the shot bullets of each round of gun and the total number of the shot bullets of the rounds of gun at each target position to obtain the total bullet consumption.

2. The method for counting rifle shots based on the LORA's Internet of things of claim 1, wherein,

and after the shooting is completed or the preset shooting time is reached, comparing the number of the gun shots at each target position with the actual loading number of the corresponding gun, and if the obtained number of the gun shots is smaller than the actual loading number of the corresponding gun, giving an alarm and prompting.

3. The method for counting rifle shots based on the LORA's Internet of things of claim 1, wherein,

the threshold voltage is the peak value average value of the gun body vertical acceleration pulse signal obtained by actual measurement in the field for many times in advance.

4. The method for counting rifle shots based on the LORA's Internet of things of claim 1, wherein,

and transmitting the number of the target to the service terminal through LORA wireless communication.

5. The rifle shooting bullet counting device based on the LORA thing networking is characterized by comprising an integrated triaxial acceleration sensor, an acceleration signal comparison and shaping circuit, an integrated LORA wireless module and a monitoring host, wherein the integrated triaxial acceleration sensor and the acceleration signal comparison and shaping circuit are electrically connected with the integrated LORA wireless module, the integrated LORA wireless module is in wireless communication connection with the monitoring host, the integrated triaxial acceleration sensor is used for detecting a gun body vertical acceleration pulse signal of a target position where a bullet is currently shot, the acceleration signal comparison and shaping circuit is used for comparing the gun body vertical acceleration pulse signal with threshold voltage, the integrated LORA wireless module is used for transmitting the number of the corresponding target position to a service terminal after shaping and outputting the square wave signal, and the monitoring host is used as a carrier of the service terminal.

6. The rifle shot bullet counting device based on the LORA's Internet of things as set forth in claim 5 wherein,

the integrated triaxial acceleration sensor is an MMA7361LC sensor;

the model of the integrated LORA wireless module is a wireless module M-HL10;

the monitoring host comprises a server and a LORA wireless router, and the server is electrically connected with the LORA wireless router;

the acceleration signal comparison and shaping circuit comprises an LM393 double-voltage comparator, a resistor R1, a resistor R2, a resistor R3, a resistor R4 and a capacitor C3, wherein one end of the resistor R4 is connected with VCC, the other end of the resistor R4 is connected with one end of the resistor R1 and one end of the resistor R3, the other end of the resistor R3 is grounded, the other end of the resistor R1, one end of the resistor R2 and the positive electrode input end of the LM393 double-voltage comparator are connected with each other, the other end of the resistor R2 is connected with the output end of the LM393 double-voltage comparator, and the negative electrode input end of the LM393 double-voltage comparator is connected with the capacitor C3 in series and then grounded;

the gun body vertical acceleration pulse signal Z is input into the negative electrode input end of the LM393 double-voltage comparator, and the threshold voltage Vz is input into the positive electrode input end of the LM393 double-voltage comparator;

the gun also comprises a powerful magnet, an integrated triaxial acceleration sensor, an acceleration signal comparison and shaping circuit and an integrated LORA wireless module, wherein the powerful magnet is fixed on the gun stock of the gun, and the powerful magnet is adsorbed on the gun stock of the gun.

7. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the steps of the method of any of claims 1 to 4 when the program is executed.

8. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method according to any one of claims 1 to 4.