WO2021249065A1

WO2021249065A1 - Closed u-shaped array ultrasonic automatic target-scoring system

Info

Publication number: WO2021249065A1
Application number: PCT/CN2021/091918
Authority: WO
Inventors: 王宇; 王雷
Original assignee: 南京润景丰创信息技术有限公司
Priority date: 2020-06-10
Filing date: 2021-05-06
Publication date: 2021-12-16

Abstract

Discloses is a closed U-shaped array ultrasonic automatic target-scoring system, comprising targets (100), a communication network (200), and a master control system (300), wherein a data acquisition component is arranged on each target (100), and the data acquisition component comprises five ultrasonic sensors (104); the five ultrasonic sensors (104) are arranged in a U-shaped array, and are evenly arranged on concentric arcs with the same radius on a fixed base (103), and an included angle between axes of adjacent ultrasonic sensors (104) is 15 degrees; and the five ultrasonic sensors (104) carry out an operation twice and then calculate an average value, and the average value is taken as the coordinate value of an impact point.

Description

A closed U-shaped array ultrasonic automatic target reporting system

Technical field

The invention relates to the technical field of ultrasound, in particular to a closed U-shaped array ultrasound automatic target reporting system.

Background technique

Accuracy reporting is a training reporting method often used in shooting training for police and military militarized training. Its purpose is to provide objective and accurate standard conditions for shooting training, assessment, and competition, and to improve the accuracy of live ammunition shooting. The existing ultrasonic target reporting technology has no compensation algorithm for the equalization of the ultrasonic probe and the machining error of the mechanical structure.

Summary of the invention

The purpose of the present invention is to solve the shortcomings in the prior art, and proposes a closed U-shaped array ultrasonic automatic target reporting system, which includes a target, a communication network, and a master control system. The target is equipped with data acquisition components. The data acquisition component collects the impact point data, and sends the impact point data to the master control system through the communication network. The master control system gives the shooting results, and is characterized in that: the target includes a target cavity and a target frame, and the target cavity is installed on the target frame, The target frame is provided with a fixed base; the data acquisition component includes an ultrasonic sensor, and the ultrasonic sensor is installed on the fixed base in a U-shaped array.

Further, the data collection assembly includes 5 ultrasonic sensors, and the 5 ultrasonic sensors are equally arranged on the fixed base in a concentric arc with the same radius, and the included angle between the axes of adjacent sensors is 10-30° .

Further, 5 ultrasonic sensors are on the same longitudinal plane.

Further, the data acquisition component further includes an ultrasonic signal acquisition and processing circuit board, which is connected to the electrical signal of the ultrasonic sensor; from left to right, the 5 ultrasonic sensors are No. 1 ultrasonic probe, 2 Ultrasonic probe No. 3, Ultra probe No. 4, Ultra probe No. 5, of which the No. 1 ultrasound probe, No. 3 ultrasound probe and No. 5 ultrasound probe are a group for the first ultrasonic signal detection, through the ultrasonic signal acquisition and The processing circuit board calculates the corresponding coordinate values (X1, Y1); No. 2 ultrasonic probe, No. 3 ultrasonic probe and No. 4 ultrasonic probe are a group for the second ultrasonic signal detection, and the ultrasonic signal acquisition and processing circuit board solves again Calculate the corresponding coordinate values (X2, Y2); the ultrasonic signal acquisition and processing circuit board will average (X1, Y1) and (X2, Y2) to calculate the calculated (X1, Y1) and (X2, Y2) The average value (X, Y) is sent to the master control system as the coordinate value of the impact point.

Further, the ultrasonic signal acquisition and processing circuit board includes 5 sensor signal acquisition circuits, and includes a sensor preamplifier circuit, a signal filter circuit, a main amplifier circuit, a voltage follower circuit, a voltage comparison circuit, and a time difference Measuring instrument, main control chip, wireless communication module, power converter;

The said 5-channel sensor signal acquisition circuit collects ultrasonic signals of No. 1 super probe, No. 2 super probe, No. 3 super probe, No. 4 super probe, and No. 5 super probe respectively, and sends them to the preamplifier circuit;

The preamplifier circuit is connected to a first-level filter circuit, and the preamplifier circuit amplifies the signal received by the ultrasonic sensor to a certain amplitude and sends it to the signal filter circuit;

The signal filter circuit is connected to the main amplifier circuit, the signal filter circuit effectively filters out the interference noise signal and sends the signal to the main amplifier circuit, and the main amplifier circuit is used to enhance the signal strength;

The voltage follower circuit is connected to the main amplifier circuit to enhance the output driving capability of the signal;

The voltage comparison circuit is connected to a voltage follower circuit, and the voltage comparison circuit is used to interpret the signal output intensity and connect the output to a time difference measuring instrument. The precise measurement results of the s are sent to the main control chip through the address bus and the data bus;

The main control chip transmits the time difference of 5 ultrasonic signals to the target control computer through the wireless communication module;

It also includes a circuit board and a communication module power supply battery pack. The circuit board and the communication module power supply battery pack provide effective working power for the ultrasonic signal acquisition and processing circuit board and communication module parts.

Further, the data acquisition component further includes a temperature sensor and a temperature acquisition circuit, the temperature sensor is arranged inside the sealed target cavity; the temperature acquisition circuit is connected to the main control chip through a single bus, and the temperature acquisition circuit The sensor collects the environmental temperature value, and sends the collected temperature data to the main control chip through a single bus.

Further, the target cavity includes a frame and front and rear bullet-receiving target surfaces, and the frame includes a left side board, a right side board, and an upper top board. The rear bombardment target surface jointly encloses a target cavity with an opening at the bottom. The joints between the left side plate and the upper top board, front and rear bomb target surfaces are sealed with glue, and the right side board and the upper top board, front and rear bomb target surfaces are Adhesive sealing of joints;

The target frame includes an ultrasonic probe mounting seat and a support seat, the ultrasonic probe mounting seat is fixed on the upper part of the support seat, the size of the ultrasonic probe mounting seat is smaller than the size of the opening at the bottom of the target cavity, the ultrasonic probe mounting seat is embedded in the target cavity, and the bottom of the target cavity The joint between the opening and the support seat is sealed with glue.

Further, the 5 arc-shaped ultrasonic sensors adopt 18K ultrasonic sensors, the effective detection distance is not less than 1m, and the detection boundary angle is not less than 120°.

The present invention also provides a closed U-shaped array ultrasonic automatic target reporting system, which includes a closed target cavity, five closed U-shaped array ultrasonic sensors, a temperature sensor, a sensor mounting seat, an ultrasonic signal acquisition and processing circuit board, Communication module, target channel sub-control computer, network switch or Wifi wireless router, target channel master control computer, observation TV, score output printer; set 5 closed U-shaped array ultrasonic sensors and 1 under the closed target cavity The temperature sensor, the output end of the ultrasonic sensor and the temperature sensor are connected to the ultrasonic signal acquisition and processing circuit board through the signal cable, and the ultrasonic signal acquisition and processing circuit board is connected to the communication module through the signal cable; the communication module is through the network switch or Wifi wireless router Perform wired or wireless communication with the target channel main control computer, and send the ultrasonic signal acquisition and processing circuit board calculation results to the target channel main control computer; the main control computer is connected with the target channel sub-control computer and the observation TV through a network cable to connect The shooting results are sent to the target lane sub-control computer and displayed on the TV; the target machine master control computer opens the sub-control operation function to the target lane sub-control computer; the target lane master control computer is connected to the printer, and the shooting results can be displayed at any time Perform paper media output.

Further, the target channel master control computer displays the (X, Y) coordinate values in the target reporting software according to the mathematical model, and then judges the ring number and orientation information according to the target shape, and sends the final result to the target channel sub-control computer through the network switch And or observe the TV; the target lane master control computer opens the sub-control control function to the target lane sub-control computer, and the target lane master control computer can connect to the printer to print the shooting results of the shooter.

Beneficial effects: The present invention adopts a frame and front and rear bombed target surfaces to form a sealed target cavity. The sealed target cavity has the function of isolating the clutter interference outside the reporting target area, and forms a relatively stable ultrasonic propagation environment inside the sealed target cavity. When the projectile passes through When the front and rear target surfaces rub against the target surface, ultrasonic waves are generated; an arc-shaped ultrasonic signal acquisition probe component is set at the bottom of the closed target cavity to collect the ultrasonic signals generated by the friction between the projectile and the target surface and the ambient temperature in the closed target cavity; 5 Only the ultrasonic sensors are arranged in a U-shaped array, and they are evenly arranged on the concentric and same radius arcs on the sensor mounting seat, and the angle between the axes of adjacent sensors is 15°. Five ultrasonic sensors do two calculations and then calculate the average value, and take the average value as the coordinate value of the impact point, which effectively solves the target reporting error caused by processing.

Description of the drawings

Figure 1 is a schematic diagram of the structure of a closed U-shaped array ultrasonic automatic target reporting system;

Figure 2 is a schematic diagram of the target structure;

Figure 3 is a closed U-shaped array ultrasonic automatic target reporting system sensor arc layout diagram;

Figure 4 is a schematic diagram of the ultrasonic signal acquisition and processing circuit board circuit;

Figure 5 is a schematic diagram of the fixed base structure;

Figure 6 is an example diagram of the calculation formula of the ultrasonic signal acquisition and processing circuit board;

Figure 7 is an enlarged schematic diagram of the fixed base structure.

detailed description

Embodiment 1: As shown in FIG. 1, a closed U-shaped array ultrasonic automatic target reporting system includes a target 100, a communication network 200, and a master control system 300.

As shown in Figure 2, the target 100 is provided with a data acquisition component, which collects impact point data, and sends the impact point data to the master control system through the communication network, and the master control system gives the shooting results.

The target 100 includes a target cavity 101 and a target frame 102. The target cavity 101 is mounted on the target frame 102, and the target frame 102 is provided with a fixed base 103; the data acquisition component includes an ultrasonic sensor 104, the ultrasonic sensor 104 is mounted on the fixed base 103 in a U-shaped array. Further, the fixed base 103 is arc-shaped.

Further, the data collection assembly includes 5 ultrasonic sensors, and the 5 ultrasonic sensors are evenly arranged on the fixed base 103 in a concentric arc with the same radius, and the included angle between the axes of adjacent ultrasonic sensors 104 is 1 -36°, preferably, the angle between the axes of adjacent ultrasonic sensors 104 is 10-30°.

Further, five ultrasonic sensors 104 are on the same longitudinal plane.

Further, as shown in FIG. 3, the data acquisition component also includes an ultrasonic signal acquisition and processing circuit board, which is connected to the ultrasonic sensor electrical signal; the 5 ultrasonic sensors are in order from left to right No. 1 super probe, No. 2 super probe, No. 3 super probe, No. 4 super probe, No. 5 super probe, the super probe of the present invention refers to an ultrasonic sensor, wherein the No. 1 super probe, No. 3 ultrasonic probe and No. 5 ultrasonic probe are one The group conducts the first ultrasonic signal detection, and calculates the corresponding coordinate values (X1, Y1) through the ultrasonic signal acquisition and processing circuit board;

No. 2 ultrasonic probe, No. 3 ultrasonic probe, and No. 4 ultrasonic probe are a set for the second ultrasonic signal detection, and the corresponding coordinate values (X2, Y2) are calculated again through the ultrasonic signal acquisition and processing circuit board;

The ultrasonic signal acquisition and processing circuit board will calculate the average value of (X1, Y1) and (X2, Y2), and use the calculated average value (X, Y) of (X1, Y1) and (X2, Y2) as the impact point coordinates The value is sent to the master control system 300.

In order to facilitate the understanding of the algorithm, the following is a specific description in conjunction with Figures 3 and 6:

The position of the middlemost ultrasonic sensor of the 5 ultrasonic sensors is taken as the zero point of the horizontal coordinate and the longitudinal coordinate.

When the projectile passes through the front and rear target surfaces, it rubs against the target surface to generate an ultrasonic source, and the ultrasonic sensor captures the signal. This example is the point P in Figure 6, and one group (probe No. 1, probe No. 3, probe No. 5) Take the ultrasonic sensor as an example. In Figure 6, the sensors at three points A, O, and B are taken as examples.

The coordinate value of point A is (-a,b); the coordinate value of point O is (0,0); the coordinate value of point B is (-a,b);

Find P(X,Y)

The ultrasonic sensor A collects the ultrasonic waves at point P, the distance of PA=T1*V;

O ultrasonic sensor collects the ultrasonic wave of point P, the distance of PO=T2*V;

The ultrasonic sensor B collects the ultrasonic waves at point P, the distance of PB=T2*V;

Use the following formula:

S1=PA-PO=(T1-T2)*V

S2=PO-PB=(T2-T3)*V

V = speed of sound, which is 340 m/s under the conditions of 1 standard atmospheric pressure and 15°C.

Use the following formula:

sqrt((x+a)^2+(y-b)^2)-sqrt(x^2+y^2)=S1

sqrt(x^2+y^2)-sqrt((x-a)^2+(y-b)^2)=S2

Connect the above equations to get the x and y values

The calculation principle is shown above.

Calculate the x1, y1 values of sensors 1, 3, and 5, then calculate the x2, y2 values of sensors 2, 3, and 4, and then take the average value as the coordinate value of point P.

The five probes do two calculations and then calculate the average value. Taking the average value as the coordinate value of the impact point can solve the target production and processing error.

Further, as shown in FIG. 4, the ultrasonic signal acquisition and processing circuit board includes 5 sensor signal acquisition circuits, and includes a sensor preamplifier circuit, a signal filter circuit, a main amplifier circuit, a voltage follower circuit, and a voltage comparison circuit. Circuit, and equipped with time difference measuring instrument, main control chip, wireless communication module, power converter;

Further, as shown in FIG. 2, the target cavity 101 includes a frame and front and rear bullet-receiving target surfaces. The frame includes a left side panel, a right side panel, and an upper top panel, wherein the left side panel, the right side panel, and the upper top panel Together with the front receiving target surface and the rear receiving target surface, a target cavity with an opening at the bottom is formed. , Adhesive seal at the joints of the rear bomb target surface;

As shown in Figures 5 and 7, the fixed base 103 includes an ultrasonic probe mounting base 105 and a support base 106. The ultrasonic probe mounting base 105 is fixed on the upper part of the support base 106. The size of the ultrasonic probe mounting base 105 is smaller than the opening at the bottom of the target cavity. The ultrasonic probe mounting base 105 is embedded in the target cavity, and the joint between the opening at the bottom of the target cavity and the support base 106 is sealed with glue. As a result, the target cavity forms a closed target cavity. The closed target cavity has the function of isolating the clutter dry burning outside the reporting target area. It is composed of a frame and front and back receiving target surfaces. The function is to form a relatively stable ultrasonic propagation environment inside the closed target cavity. When the projectile passes through the front and rear target surfaces, Ultrasonic source generated by friction with the target surface;

Further, the ultrasonic probe mounting seat 105 is provided with 5 ultrasonic probe mounting grooves 107, and the 5 ultrasonic probe mounting grooves 107 are evenly arranged on the ultrasonic probe mounting seat 105 in a concentric circle with the same radius. The included angle between the axes of the probe mounting grooves 107 is 1-36°, and preferably, the included angle between the axes of adjacent ultrasonic probe mounting grooves 107 is 10-30°. The ultrasonic probe is the ultrasonic sensor. The ultrasonic probe installation groove 107 matches the size of the ultrasonic sensor. The ultrasonic sensor is located in the ultrasonic probe installation groove 107. Furthermore, an insulating rubber damping pad is installed between the ultrasonic sensor and the sensor installation groove. Furthermore, the ultrasonic probe mounting seat 105 is also provided with a temperature sensor fixing seat 108, the temperature sensor 109 is installed and fixed on the temperature sensor fixing seat 108, and the temperature sensor and the sensor mounting seat are insulated.

Embodiment 2: As shown in Figures 1, 2, and 5, the present invention also proposes a closed U-shaped array ultrasonic automatic target reporting system, including a closed target cavity 101, 5 closed U-shaped array ultrasonic sensors 104, Temperature sensor 109, sensor mount 105, ultrasonic signal acquisition and processing circuit board, communication module, target channel sub-control computer, network switch or Wifi wireless router, target channel master control computer, observation TV, score output printer; in a closed target Five closed U-shaped array ultrasonic sensors 104 and one temperature sensor 109 are arranged below the cavity 101. The output ends of the ultrasonic sensor 104 and the temperature sensor 109 are connected to the ultrasonic signal acquisition and processing circuit board through a signal cable. The ultrasonic signal acquisition and The processing circuit board is connected with the communication module through a signal cable; the communication module performs wired or wireless communication with the target channel master control computer through a network switch or Wifi wireless router, and sends the ultrasonic signal acquisition and processing circuit board calculation results to the target channel master control Computer 300; the master control computer 300 is connected to the target lane sub-control computer and the observation television through a network cable, and the shooting results are sent to the target lane sub-control computer and or displayed on the observation television; the target machine master control computer divides the target lane The control computer opens the sub-control operation function; the target track master control computer is connected with the printer, and the shooting results can be output to the paper medium at any time.

Further, the target channel master control computer 300 displays the (X, Y) coordinate values in the target reporting software according to the mathematical model, and then judges the ring number and orientation information according to the target shape, and sends the final result to the target channel sub-control through the network switch Computer and or watch TV; the target lane master control computer opens the sub-control control function to the target lane sub-control computer, and the target lane master control computer can connect to a printer to print the shooting results of the shooter.

Embodiment 3: As shown in Figures 1, 2, and 5, a closed U-shaped array ultrasonic automatic target reporting system, including a closed target cavity 101, 5 closed U-shaped array ultrasonic sensors 104, temperature sensors 109, Sensor mount 105, ultrasonic signal acquisition and processing circuit board, communication module, target channel sub-control computer, network switch or Wifi wireless router, target channel master control computer, observation TV, score output printer; below the enclosed acoustic cavity Equipped with five enclosed U-shaped array ultrasonic sensors 104 and a temperature sensor 109. The output ends of the ultrasonic sensors and temperature sensors are connected to the ultrasonic signal acquisition and processing circuit board through signal cables. The ultrasonic signal acquisition and processing circuit board passes signals. The cable is connected with the communication module; the communication module performs wired or wireless communication with the target channel master control computer through a network switch or Wifi wireless router, and sends the ultrasonic signal acquisition and processing circuit board calculation results to the target channel master control computer; master control computer It is connected with the target lane sub-control computer and the observation TV through a network cable, and the shooting results are sent to the target lane sub-control computer and the observation television for display; the target machine master control computer opens the sub-control control operation function to the target lane sub-control computer ; The target control computer is connected with the printer, and the shooting results can be output on paper media at any time.

Preferably, the sealed target cavity has the function of isolating the clutter dry burning outside the reporting target area, and is composed of a frame and front and rear bullet-receiving target surfaces. The function is to form a relatively stable ultrasonic propagation environment inside the sealed target cavity. When the projectile passes through When the front and back target surfaces are rubbed with the target surface, an ultrasonic source is generated;

Preferably, the five arc-shaped ultrasonic sensors adopt 18K ultrasonic sensors, with an effective detection distance of not less than 1 m, and a detection boundary angle of not less than 120°, which are used to detect the distance from the ultrasonic source to the detection surface of the sensor.

Preferably, the temperature sensor is used to detect the temperature data of the environment inside the sealed target cavity.

Preferably, the sensor mounting seat is used to install the ultrasonic device and the fixed base of the temperature sensor, an insulating rubber shock-absorbing pad is installed between the ultrasonic sensor and the sensor mounting seat, and the temperature sensor and the sensor mounting seat are insulated.

Preferably, the ultrasonic signal acquisition and processing circuit board is a core component for receiving, processing, resolving, and outputting the resolving result of ultrasonic signals and ambient temperature signals.

Preferably, the communication module is a communication component that uploads the numerical information of the impact point coordinates calculated by the ultrasonic signal acquisition and processing circuit board to the target track master control computer, and the communication method is wired/wireless compatible, using a network switch or a Wifi wireless router accomplish.

Preferably, the target channel master control computer can display the (X, Y) coordinate value in the target reporting software according to the mathematical model, and then judge the ring number and orientation information according to the target shape, and send the final result to the target channel sub-control through the network switch Computer and viewing television; the target lane master control computer opens the sub-control control function to the target lane sub-control computer, and the target lane master control computer can be connected to an external printer to print the shooting results of the shooter.

Embodiment 4: A closed U-shaped array ultrasonic automatic target reporting system, including a closed target cavity, five closed U-shaped array ultrasonic sensors, temperature sensors, sensor mounting seats, ultrasonic signal acquisition and processing circuit boards, and communications Module, circuit board and communication module power supply battery pack, target channel sub-control computer, network switch or Wifi wireless router, target channel master control computer, observation TV, score output printer; there are five closed type under the sealed target cavity U-shaped array ultrasonic sensor and a temperature sensor. The output ends of the ultrasonic sensor and temperature sensor are connected to the ultrasonic signal acquisition and processing circuit board through a signal cable, and the ultrasonic signal acquisition and processing circuit board is connected to the communication module through a signal cable; The communication module performs wired or wireless communication with the target channel master control computer through a network switch or Wifi wireless router, and sends the ultrasonic signal acquisition and processing circuit board calculation results to the target channel master control computer; the master control computer and the target channel sub-control computer and observe The TV is connected by a network cable, and the shooting results are sent to the target lane sub-control computer and displayed on the viewing TV; the target machine master control computer opens the sub-control control operation function to the target lane sub-control computer; the target lane master control computer and printer Connected, the shooting results can be output on paper media at any time.

The closed target cavity has the function of isolating the clutter interference outside the reporting target area. It is composed of a frame and front and back receiving target surfaces; a relatively stable ultrasonic propagation environment is formed inside the closed target cavity. When the projectile passes through the front and rear target surfaces, it will be Friction generates ultrasonic waves; an arc-shaped ultrasonic signal acquisition probe component is arranged at the bottom of the closed target cavity to collect the ultrasonic signals generated by the friction between the projectile and the target surface and the ambient temperature in the closed target cavity; five ultrasonic sensors are on the sensor mounting seat The arcs with the same radius and concentric centers are equally arranged, and the angle between the axes of adjacent sensors is 15°; the temperature sensor is installed on the sensor mounting seat.

The No. 1 ultrasonic probe, No. 3 ultrasonic probe and No. 5 ultrasonic probe are a group for the first ultrasonic signal detection, and the corresponding coordinate values (X1, Y1) are calculated through the ultrasonic signal acquisition and processing circuit board; the No. 2 ultrasonic probe, No. 3 ultrasonic probe and No. 4 ultrasonic probe are a set for the second ultrasonic signal detection, and the corresponding coordinate values (X2, Y2) are calculated again through the ultrasonic signal acquisition and processing circuit board; the (X1, Y1) and (X2) , Y2) Perform average calculation to compensate the balance of the ultrasonic probe and the machining error of the mechanical structure to obtain the impact point coordinate value (X, Y).

The ultrasonic signal acquisition and processing circuit board contains five sensor signal acquisition circuits, and is equipped with a time difference measuring instrument, a temperature acquisition measurement and conversion circuit, a data transceiver, a communication module, and a power converter.

The ultrasonic signal acquisition and processing circuit board mainly includes five-way sensor preamplification circuit, signal filter circuit, main amplifier circuit, voltage follower circuit, voltage comparison circuit and is equipped with time difference measuring instrument, temperature acquisition circuit, main control chip, and wireless communication. Module, power converter; the pre-amplification circuit is connected to the first-stage filter circuit, the pre-amplifier circuit amplifies the signal received by the ultrasonic sensor to a certain amplitude and sends it to the signal filter circuit; the signal filter The circuit is connected to the main amplifying circuit, and the signal filter circuit effectively filters out the interference noise signal and sends the signal to the main amplifying circuit; the main amplifying circuit is used to enhance the signal strength; the voltage follower circuit is connected to the main amplifying circuit, To enhance the signal output drive capability; the voltage comparison circuit is used to determine the signal output strength, and the output is connected to the time difference measuring instrument; the time difference measuring instrument through the pulse counting circuit to measure the time difference, the five-channel ultrasonic signal The precise measurement result of the time difference is sent to the main control chip through the address bus and the data bus; the temperature acquisition circuit collects the ambient temperature value, and sends the collected temperature data to the main control chip through a single bus; the main control chip transmits five channels of ultrasound The signal time difference and temperature data are transmitted to the target control computer through the wireless communication module.

The circuit board and the communication module power supply battery pack provide effective working power for each part of the ultrasonic signal acquisition and processing circuit board and the communication module.

The network switch or Wifi wireless router can effectively send the data signals collected from several targets to a target channel master control computer. The target channel master control computer has centralized control and performance statistics software, which can effectively manage each target. The results of the shooting position can be printed out through the printer.

The target path control computer can display the (X, Y) coordinate value in the target reporting software according to the mathematical model, and then judge the ring number and azimuth information according to the target shape, and send the final result to the target path sub-control computer and observe through the network switch Television; the target lane master control computer opens the sub-control control function to the target lane sub-control computer, and the target lane master control computer can be connected to an external printer to print the shooting results of the shooter.

Claims

A closed U-shaped array ultrasonic automatic target reporting system, including a target, a communication network, and a master control system. The target is equipped with a data acquisition component. The data acquisition component collects impact point data and sends the impact point data to the master control through the communication network System, the master control system gives shooting results, characterized in that: the target includes a target cavity and a target frame, the target cavity is installed on the target frame, and the target frame is provided with a fixed base; the data acquisition component includes an ultrasound A sensor, the ultrasonic sensor is installed on a fixed base in a U-shaped array;

The data collection assembly includes 5 ultrasonic sensors, and the 5 ultrasonic sensors are equally arranged on the fixed base on the arcs of concentric circles and the same radius, and the angle between the axes of adjacent sensors is 10-30°.
The closed U-shaped array ultrasonic automatic target reporting system according to claim 1, characterized in that: 5 ultrasonic sensors are on the same longitudinal plane.
The enclosed U-shaped array ultrasonic automatic target reporting system according to claim 1, wherein the data acquisition component further comprises an ultrasonic signal acquisition and processing circuit board, the ultrasonic signal acquisition and processing circuit board and the electrical signal of the ultrasonic sensor Connection; from left to right, the 5 ultrasonic sensors are No. 1 super probe, No. 2 super probe, No. 3 super probe, No. 4 super probe, No. 5 super probe, of which No. 1 super probe, No. 3 ultrasound probe and The No. 5 ultrasonic probe is a group for the first ultrasonic signal detection, and the corresponding coordinate value (X1, Y1) is calculated through the ultrasonic signal acquisition and processing circuit board; the No. 2 ultrasonic probe, the No. 3 ultrasonic probe and the No. 4 ultrasonic probe are One group performs the second ultrasonic signal detection, and calculates the corresponding coordinate values (X2, Y2) again through the ultrasonic signal acquisition and processing circuit board; the ultrasonic signal acquisition and processing circuit board combines (X1, Y1) and (X2, Y2) Perform average calculation, and send the calculated average (X, Y) of (X1, Y1) and (X2, Y2) as the impact point coordinate value to the master control system.
The closed U-shaped array ultrasonic automatic target reporting system according to claim 3, wherein the ultrasonic signal acquisition and processing circuit board includes 5 sensor signal acquisition circuits, and includes a sensor preamplifier circuit, Signal filter circuit, main amplifying circuit, voltage follower circuit, voltage comparison circuit, and equipped with time difference measuring instrument, main control chip, wireless communication module, power converter;

The said 5-channel sensor signal acquisition circuit collects ultrasonic signals of No. 1 super probe, No. 2 super probe, No. 3 super probe, No. 4 super probe, and No. 5 super probe respectively, and sends them to the preamplifier circuit;

The preamplifier circuit is connected to a first-level filter circuit, and the preamplifier circuit amplifies the signal received by the ultrasonic sensor to a certain amplitude and sends it to the signal filter circuit;

The signal filter circuit is connected to the main amplifier circuit, the signal filter circuit effectively filters out the interference noise signal and sends the signal to the main amplifier circuit, and the main amplifier circuit is used to enhance the signal strength;

The voltage follower circuit is connected to the main amplifier circuit to enhance the output driving capability of the signal;

The voltage comparison circuit is connected to a voltage follower circuit, and the voltage comparison circuit is used to interpret the signal output intensity and connect the output to a time difference measuring instrument. The precise measurement results of the s are sent to the main control chip through the address bus and the data bus;

The main control chip transmits the time difference of 5 ultrasonic signals to the target control computer through the wireless communication module;

It also includes a circuit board and a communication module power supply battery pack. The circuit board and the communication module power supply battery pack provide effective working power for the ultrasonic signal acquisition and processing circuit board and communication module parts.
The enclosed U-shaped array ultrasonic automatic target reporting system according to claim 4, characterized in that: the data acquisition component further comprises a temperature sensor and a temperature acquisition circuit, and the temperature sensor is arranged inside the closed target cavity; The temperature acquisition circuit is connected to the main control chip through a single bus, and the temperature acquisition circuit collects ambient temperature values through a temperature sensor, and sends the collected temperature data to the main control chip through the single bus.
The closed U-shaped array ultrasonic automatic target reporting system according to claim 1, wherein the target cavity includes a frame and front and rear bullet-receiving target surfaces, and the frame includes a left side plate, a right side plate, and an upper side plate. The top plate, the left side plate, the right side plate, the upper top plate, the front receiving target surface, and the rear receiving target surface jointly enclose a target cavity with an opening at the bottom. The seams are sealed with glue, and the joints between the right side board and the upper top board, front and rear bomb targets are sealed with glue;

The target frame includes an ultrasonic probe mounting seat and a support seat, the ultrasonic probe mounting seat is fixed on the upper part of the support seat, the size of the ultrasonic probe mounting seat is smaller than the size of the opening at the bottom of the target cavity, the ultrasonic probe mounting seat is embedded in the target cavity, and the bottom of the target cavity The joint between the opening and the support seat is sealed with glue.
The closed U-shaped array ultrasonic automatic target reporting system according to claim 1, characterized in that the 5 arc-shaped ultrasonic sensors adopt 18K ultrasonic sensors, the effective detection distance is not less than 1m, and the detection boundary angle is not less than 1m. Less than 120°.
A closed U-shaped array ultrasonic automatic target reporting system, which is characterized in that it includes a closed target cavity, five closed U-shaped array ultrasonic sensors, a temperature sensor, a sensor mounting seat, an ultrasonic signal acquisition and processing circuit board, and communication Module, target channel sub-control computer, network switch or Wifi wireless router, target channel master control computer, observation TV, score output printer; 5 closed U-shaped array ultrasonic sensors and 1 temperature are set under the closed target cavity The output terminals of the sensors, ultrasonic sensors and temperature sensors are connected to the ultrasonic signal acquisition and processing circuit board through a signal cable, and the ultrasonic signal acquisition and processing circuit board is connected to the communication module through a signal cable; the communication module is connected to the communication module through a network switch or Wifi wireless router The target channel master control computer performs wired or wireless communication, and sends the ultrasonic signal acquisition and processing circuit board calculation results to the target channel master control computer; the master control computer is connected with the target channel sub-control computer and the observation TV through a network cable to shoot The results are distributed to the target lane sub-control computer and or watched on the TV display; the target machine master control computer opens the sub-control control operation function to the target lane sub-control computer; the target lane master control computer is connected with the printer, and the shooting results can be performed at any time Paper media output.
The closed U-shaped array ultrasonic automatic target reporting system according to claim 8, characterized in that: the target channel master control computer displays (X, Y) coordinate values in the target reporting software according to the mathematical model, and then judges according to the target shape The ring number and azimuth information, and the final result will be sent to the target channel sub-control computer and or watch the TV through the network switch.