CN213481140U - Closed U-shaped array ultrasonic automatic target scoring system - Google Patents
Closed U-shaped array ultrasonic automatic target scoring system Download PDFInfo
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Abstract
A closed U-shaped array ultrasonic automatic target scoring system comprises a frame, front and rear target receiving surfaces, a sealed target cavity, a closed ultrasonic wave transmission environment and a closed ultrasonic wave scoring system, wherein the frame is provided with the front and rear target receiving surfaces to form the sealed target cavity, the sealed target cavity has the function of isolating clutter interference outside a target scoring area, a relatively stable ultrasonic wave transmission environment is formed inside the sealed target cavity, and when shot penetrates through the front and rear target surfaces, the shot is rubbed with the target surface to generate ultrasonic waves; the bottom of the closed target cavity is provided with an ultrasonic signal acquisition probe part which is arranged in an arc shape and is used for acquiring ultrasonic signals generated by friction between the projectile and the target surface and the ambient temperature in the closed target cavity; the 5 ultrasonic sensors are in a U-shaped arrangement mode, are arranged on the sensor mounting seat in an equal way on arcs with the same circle center and the same radius, and the included angle between the axes of the adjacent sensors is 15 degrees. The 5 ultrasonic sensors perform twice operation and then perform average value calculation, and the average value is taken as the coordinate value of the impact point, so that the target-reporting error caused by processing is effectively solved.
Description
Technical Field
The invention relates to the technical field of ultrasonic waves, in particular to a closed U-shaped array ultrasonic automatic target scoring system.
Background
The precision target-scoring is a training target-scoring means frequently used in shooting training in military training of policemen and troops, aims to provide objective and accurate standard conditions for shooting training, examination and competition, and is favorable for improving the accuracy of ball firing. The existing ultrasonic target scoring technology has no compensation algorithm for the balance of an ultrasonic probe and the machining error of a mechanical structural part.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a closed U-shaped arrangement ultrasonic automatic target scoring system which comprises a target, a communication network and a master control system, wherein the target is provided with a data acquisition assembly, the data acquisition assembly acquires impact point data and sends the impact point data to the master control system through the communication network, and the master control system gives a shooting score, and is characterized in that: the target comprises a target cavity and a target frame, the target cavity is arranged on the target frame, and a fixed base is arranged on the target frame; the data acquisition assembly comprises ultrasonic sensors which are arranged on a fixed base in a U-shaped array.
Furthermore, the data acquisition assembly comprises 5 ultrasonic sensors, the 5 ultrasonic sensors are uniformly arranged on the fixed base in concentric circles on arcs with the same radius, and the included angle between the axes of the adjacent sensors is 10-30 degrees.
Further, 5 ultrasonic sensors are on the same longitudinal plane.
Furthermore, the data acquisition assembly also comprises an ultrasonic signal acquisition and processing circuit board, and the ultrasonic signal acquisition and processing circuit board is in electrical signal connection with the ultrasonic sensor; the 5 ultrasonic sensors are sequentially provided with a No. 1 ultrasonic probe, a No. 2 ultrasonic probe, a No. 3 ultrasonic probe, a No. 4 ultrasonic probe and a No. 5 ultrasonic probe from left to right, wherein the No. 1 ultrasonic probe, the No. 3 ultrasonic probe and the No. 5 ultrasonic probe form a group to carry out first ultrasonic signal detection, and corresponding coordinate values (X1, Y1) are calculated through an ultrasonic signal acquisition and processing circuit board; the No. 2 ultrasonic probe, the No. 3 ultrasonic probe and the No. 4 ultrasonic probe are a group to carry out secondary ultrasonic signal detection, and corresponding coordinate values (X2, Y2) are solved again through an ultrasonic signal acquisition and processing circuit board; the ultrasonic signal acquisition and processing circuit board performs average value operation on (X1, Y1) and (X2, Y2), and transmits the calculated average value (X, Y) of (X1, Y1) and (X2, Y2) as a coordinate value of the impact point to the overall control system.
Furthermore, the ultrasonic signal acquisition and processing circuit board comprises 5 sensor signal acquisition circuits, a sensor preamplification circuit, a signal filter circuit, a main amplification circuit, a voltage follower circuit and a voltage comparison circuit, and is provided with a time difference measuring instrument, a main control chip, a wireless communication module and a power converter;
the 5-path sensor signal acquisition circuit respectively acquires ultrasonic signals of a No. 1 ultrasonic probe, a No. 2 ultrasonic probe, a No. 3 ultrasonic probe, a No. 4 ultrasonic probe and a No. 5 ultrasonic probe and sends the ultrasonic signals to the preamplification circuit;
the pre-amplification circuit is connected with the primary filter circuit, amplifies the signal received by the ultrasonic sensor to a certain amplitude and then sends the signal to the signal filter circuit;
the signal filtering circuit is connected with the main amplifying circuit, and is used for effectively filtering interference noise signals and then sending the signals to the main amplifying circuit, and the main amplifying circuit is used for enhancing the signal intensity;
the voltage follower circuit is connected with the main amplifying circuit and is used for enhancing the output driving capability of signals;
the voltage comparison circuit is connected with the voltage follower circuit and used for judging the output intensity of the signals and connecting the output with the time difference measuring instrument, the time difference measuring instrument measures the time difference through the pulse counting circuit and sends the accurate measurement result of the time difference of the ultrasonic signals to the main control chip through the address bus and the data bus;
the main control chip transmits the time difference of the 5 paths of ultrasonic signals to a target track master control computer through a wireless communication module;
the ultrasonic signal acquisition and processing circuit board further comprises a circuit board and a communication module power supply battery pack, wherein the circuit board and the communication module power supply battery pack provide power sources for effective work for all parts of the ultrasonic signal acquisition and processing circuit board and the communication module.
Furthermore, the data acquisition assembly also comprises a temperature sensor and a temperature acquisition circuit, wherein the temperature sensor is arranged in the closed target cavity; the temperature acquisition circuit is connected with the main control chip through the single bus, acquires an environmental temperature value through the temperature sensor and sends acquired temperature data to the main control chip through the single bus.
Furthermore, the target cavity comprises a frame and front and rear target surfaces, the frame comprises a left side plate, a right side plate and an upper top plate, wherein the left side plate, the right side plate, the upper top plate, the front target surface and the rear target surface jointly enclose a target cavity with an opening at the bottom, the left side plate is sealed with the joints of the upper top plate, the front target surface and the rear target surface, and the right side plate is sealed with the joints of the upper top plate, the front target surface and the rear target surface;
the target frame comprises an ultrasonic probe mounting seat and a supporting seat, the ultrasonic probe mounting seat is fixed on the upper portion of the supporting seat, the size of the ultrasonic probe mounting seat is smaller than that of an opening in the bottom of the target cavity, the ultrasonic probe mounting seat is embedded into the target cavity, and a seam between the opening in the bottom of the target cavity and the supporting seat is sealed through glue.
Furthermore, the 5 ultrasonic sensors arranged in an arc shape adopt 18K ultrasonic sensors, the effective detection distance is not less than 1m, and the detection boundary included angle is not less than 120 degrees.
The invention also provides a closed U-shaped arrangement ultrasonic automatic target scoring system which comprises a closed target cavity, five closed U-shaped arrangement ultrasonic sensors, a temperature sensor, a sensor mounting seat, an ultrasonic signal acquisition and processing circuit board, a communication module, a target path branch control computer, a network switch or a Wifi wireless router, a target path general control computer, a watching television and a score output printer; 5 closed U-shaped array ultrasonic sensors and 1 temperature sensor are arranged below the closed target cavity, the output ends of the ultrasonic sensors and the temperature sensors are connected with an ultrasonic signal acquisition and processing circuit board through signal cables, and the ultrasonic signal acquisition and processing circuit board is connected with a communication module through signal cables; the communication module is in wired or wireless communication with the target track general control computer through a network switch or a Wifi wireless router, and the calculation result of the ultrasonic signal acquisition and processing circuit board is sent to the target track general control computer; the general control computer is connected with the target path branch control computer and the watching television through network cables, and issues the shooting score to the target path branch control computer and/or the watching television for display; the target machine master control computer opens a sub-control operation function to the target path sub-control computers; the target path general control computer is connected with the printer and can output the shooting scores as paper media at any time.
Further, the target path general control computer displays (X, Y) coordinate values in the target-reporting software according to the mathematical model, then judges the ring number and the azimuth information according to the target shape, and sends the final result to the target path branch control computer or the watching television through the network switch; the target path general control computer opens a sub-control function to the target path sub-control computer, and the external printer of the target path general control computer can print shooting scores of shooters.
Has the advantages that: according to the invention, a sealed target cavity is formed by the frame and the front and rear target surfaces to be shot, the sealed target cavity has the function of isolating clutter interference outside a target reporting area, a relatively stable ultrasonic wave propagation environment is formed inside the sealed target cavity, and when a shot passes through the front and rear target surfaces, the shot is rubbed with the target surfaces to generate ultrasonic waves; the bottom of the closed target cavity is provided with an ultrasonic signal acquisition probe part which is arranged in an arc shape and is used for acquiring ultrasonic signals generated by friction between the projectile and the target surface and the ambient temperature in the closed target cavity; the 5 ultrasonic sensors are in a U-shaped arrangement mode, are arranged on the sensor mounting seat in an equal way on arcs with the same circle center and the same radius, and the included angle between the axes of the adjacent sensors is 15 degrees. The 5 ultrasonic sensors perform twice operation and then perform average value calculation, and the average value is taken as the coordinate value of the impact point, so that the target-reporting error caused by processing is effectively solved.
Drawings
FIG. 1 is a schematic structural diagram of a closed U-shaped arrangement ultrasonic automatic target scoring system;
FIG. 2 is a schematic diagram of a target structure;
FIG. 3 is an arc-shaped arrangement diagram of sensors of the closed U-shaped arrangement ultrasonic automatic target-scoring system;
FIG. 4 is a schematic circuit diagram of an ultrasonic signal acquisition and processing circuit board;
FIG. 5 is a schematic structural view of a fixing base;
FIG. 6 is an exemplary diagram of a calculation formula of an ultrasonic signal acquisition and processing circuit board;
fig. 7 is an enlarged view of the structure of the fixed base.
Detailed Description
Example 1: as shown in fig. 1, a closed U-shaped arrangement ultrasonic automatic target scoring system includes a target 100, a communication network 200, and a master control system 300.
As shown in fig. 2, the target 100 is provided with a data acquisition component, the data acquisition component acquires the impact point data and transmits the impact point data to the master control system through the communication network, and the master control system gives a shooting result.
The target 100 comprises a target cavity 101 and a target stand 102, the target cavity 101 is mounted on the target stand 102, and a fixed base 103 is arranged on the target stand 102; the data acquisition assembly comprises ultrasonic sensors 104, and the ultrasonic sensors 104 are arranged on a fixed base 103 in a U-shaped array. Further, the fixing base 103 is arc-shaped.
Further, the data acquisition assembly comprises 5 ultrasonic sensors, the 5 ultrasonic sensors are uniformly arranged on the fixed base 103 on the arcs with the same radius of the concentric circle, the included angle between the axes of the adjacent ultrasonic sensors 104 is 1-36 degrees, and preferably, the included angle between the axes of the adjacent ultrasonic sensors 104 is 10-30 degrees.
Further, 5 ultrasonic sensors 104 are on the same longitudinal plane.
Further, as shown in fig. 3, the data acquisition assembly further includes an ultrasonic signal acquisition and processing circuit board, and the ultrasonic signal acquisition and processing circuit board is in electrical signal connection with the ultrasonic sensor; the 5 ultrasonic sensors are sequentially provided with a No. 1 ultrasonic probe, a No. 2 ultrasonic probe, a No. 3 ultrasonic probe, a No. 4 ultrasonic probe and a No. 5 ultrasonic probe from left to right, the ultrasonic probe refers to an ultrasonic sensor, wherein the No. 1 ultrasonic probe, the No. 3 ultrasonic probe and the No. 5 ultrasonic probe are a group to carry out first ultrasonic signal detection, and corresponding coordinate values (X1, Y1) are calculated through ultrasonic signal acquisition and processing circuit boards;
the No. 2 ultrasonic probe, the No. 3 ultrasonic probe and the No. 4 ultrasonic probe are a group to carry out secondary ultrasonic signal detection, and corresponding coordinate values (X2, Y2) are solved again through an ultrasonic signal acquisition and processing circuit board;
the ultrasonic signal acquisition and processing circuit board performs an average value operation on (X1, Y1) and (X2, Y2), and transmits the calculated average value (X, Y) of (X1, Y1) and (X2, Y2) as an impact point coordinate value to the master control system 300.
For easy understanding of the algorithm, the following description is made in conjunction with fig. 3 and 6:
the position of the ultrasonic sensor at the middle of the 5 ultrasonic sensors is used as the zero point of the transverse coordinate and the longitudinal coordinate.
When the projectile passes through the front and rear target surfaces, the friction with the target surfaces generates an ultrasonic wave source, and the ultrasonic sensor captures signals, in this example, point P in fig. 6, taking one group (probe No. 1, probe No. 3, and probe No. 5) of the ultrasonic sensors as an example, and taking a sensor with A, O, B points as an example in fig. 6.
The coordinate value of the point A is (-a, b); the coordinate value of the O point is (0, 0); the coordinate value of the point B is (-a, B);
asking for P (X, Y)
The ultrasonic sensor A acquires ultrasonic waves at a point P, and the distance of PA = T1V;
the ultrasonic sensor collects the ultrasonic waves of the point P, and the distance of PO = T2V;
b, collecting ultrasonic waves of a point P by the ultrasonic sensor, wherein the distance of PB = T2 × V;
the following operational formula is adopted:
S1=PA - PO = （T1-T2）*V
S2=PO - PB = （T2-T3）*V
v = sound velocity, 1 standard atmosphere and sound velocity at 15 ℃ of 340 m/s.
The following formula is adopted:
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
the x and y values can be obtained by following the above equation
The calculation principle is as described above.
The x1 and y1 values of the sensors 1, 3 and 5 are calculated, the x2 and y2 values of the sensors 2, 3 and 4 are calculated, and then the average value is taken as the coordinate value of the point P.
The 5 probes perform twice operation and then perform average value calculation, and the average value is taken as the coordinate value of the impact point, so that the processing error of target production is solved.
Furthermore, the 5 ultrasonic sensors arranged in an arc shape adopt 18K ultrasonic sensors, the effective detection distance is not less than 1m, and the detection boundary included angle is not less than 120 degrees.
Further, as shown in fig. 4, the ultrasonic signal collecting and processing circuit board includes 5 sensor signal collecting circuits, a sensor preamplifier circuit, a signal filter circuit, a main amplifier circuit, a voltage follower circuit, a voltage comparator circuit, a time difference measuring instrument, a main control chip, a wireless communication module, and a power converter;
the 5-path sensor signal acquisition circuit respectively acquires ultrasonic signals of a No. 1 ultrasonic probe, a No. 2 ultrasonic probe, a No. 3 ultrasonic probe, a No. 4 ultrasonic probe and a No. 5 ultrasonic probe and sends the ultrasonic signals to the preamplification circuit;
the pre-amplification circuit is connected with the primary filter circuit, amplifies the signal received by the ultrasonic sensor to a certain amplitude and then sends the signal to the signal filter circuit;
the signal filtering circuit is connected with the main amplifying circuit, and is used for effectively filtering interference noise signals and then sending the signals to the main amplifying circuit, and the main amplifying circuit is used for enhancing the signal intensity;
the voltage follower circuit is connected with the main amplifying circuit and is used for enhancing the output driving capability of signals;
the voltage comparison circuit is connected with the voltage follower circuit and used for judging the output intensity of the signals and connecting the output with the time difference measuring instrument, the time difference measuring instrument measures the time difference through the pulse counting circuit and sends the accurate measurement result of the time difference of the ultrasonic signals to the main control chip through the address bus and the data bus;
the main control chip transmits the time difference of the 5 paths of ultrasonic signals to a target track master control computer through a wireless communication module;
the ultrasonic signal acquisition and processing circuit board further comprises a circuit board and a communication module power supply battery pack, wherein the circuit board and the communication module power supply battery pack provide power sources for effective work for all parts of the ultrasonic signal acquisition and processing circuit board and the communication module.
Furthermore, the data acquisition assembly also comprises a temperature sensor and a temperature acquisition circuit, wherein the temperature sensor is arranged in the closed target cavity; the temperature acquisition circuit is connected with the main control chip through the single bus, acquires an environmental temperature value through the temperature sensor and sends acquired temperature data to the main control chip through the single bus.
Further, as shown in fig. 2, the target cavity 101 includes a frame and front and rear target surfaces, the frame includes a left side plate, a right side plate, and an upper top plate, wherein the left side plate, the right side plate, the upper top plate, the front target surface, and the rear target surface together enclose a target cavity with an opening at the bottom, the left side plate is sealed with glue at the joints of the upper top plate, the front target surface, and the rear target surface, and the right side plate is sealed with glue at the joints of the upper top plate, the front target surface, and the rear target surface;
as shown in fig. 5 and 7, the fixing base 103 includes an ultrasonic probe mounting seat 105 and a supporting seat 106, the ultrasonic probe mounting seat 105 is fixed on the upper portion of the supporting seat 106, the size of the ultrasonic probe mounting seat 105 is smaller than the size of the opening at the bottom of the target cavity, the ultrasonic probe mounting seat 105 is embedded into the target cavity, and the seam between the opening at the bottom of the target cavity and the supporting seat 106 is sealed by glue. Whereby the target chamber forms a closed target chamber. The closed target cavity has the function of isolating clutter outside the target reporting area, is formed by a frame and front and rear target receiving surfaces, and has the function of forming a relatively stable ultrasonic wave propagation environment in the closed target cavity, and when the shot passes through the front and rear target surfaces, the shot is rubbed with the target surfaces to generate an ultrasonic wave source;
further, 5 ultrasonic probe mounting grooves 107 are formed in the ultrasonic probe mounting seat 105, the 5 ultrasonic probe mounting grooves 107 are equally arranged on the ultrasonic probe mounting seat 105 in concentric circles on arcs with the same radius, an included angle between axes of adjacent ultrasonic probe mounting grooves 107 is 1-36 degrees, and preferably, an included angle between axes of adjacent ultrasonic probe mounting grooves 107 is 10-30 degrees. The ultrasonic probe is an ultrasonic sensor. The ultrasonic probe mounting groove 107 is matched with the ultrasonic sensor in size direction. The ultrasonic sensor is located in the ultrasonic probe mounting groove 107. Furthermore, install insulating rubber shock pad additional between ultrasonic sensor and the sensor mounting groove. Further, a temperature sensor fixing seat 108 is further arranged on the ultrasonic probe mounting seat 105, the temperature sensor 109 is fixedly arranged on the temperature sensor fixing seat 108, and insulation processing is performed between the temperature sensor and the sensor mounting seat.
Example 2: as shown in fig. 1, 2 and 5, the invention also provides a closed U-shaped arrangement ultrasonic automatic target-reporting system, which comprises a closed target cavity 101, 5 closed U-shaped arrangement ultrasonic sensors 104, a temperature sensor 109, a sensor mounting seat 105, an ultrasonic signal acquisition and processing circuit board, a communication module, a target way dividing control computer, a network switch or a Wifi wireless router, a target way general control computer, a watching television and a score output printer; 5 closed U-shaped arrayed ultrasonic sensors 104 and 1 temperature sensor 109 are arranged below the inside of the closed target cavity 101, the output ends of the ultrasonic sensors 104 and the temperature sensors 109 are connected with an ultrasonic signal acquisition and processing circuit board through signal cables, and the ultrasonic signal acquisition and processing circuit board is connected with a communication module through signal cables; the communication module is in wired or wireless communication with the target way general control computer through a network switch or a Wifi wireless router, and the calculation result of the ultrasonic signal acquisition and processing circuit board is sent to the target way general control computer 300; the general control computer 300 is connected with the target channel sub-control computer and the watching television through network cables, and issues the shooting scores to the target channel sub-control computer and/or the watching television for display; the target machine master control computer opens a sub-control operation function to the target path sub-control computers; the target path general control computer is connected with the printer and can output the shooting scores as paper media at any time.
Further, the target path general control computer 300 displays (X, Y) coordinate values in the target-reporting software according to the mathematical model, then judges the ring number and the azimuth information according to the target shape, and sends the final result to the target path branch control computer or the watching television through the network switch; the target path general control computer opens a sub-control function to the target path sub-control computer, and the external printer of the target path general control computer can print shooting scores of shooters.
Example 3: as shown in fig. 1, 2 and 5, a closed U-shaped arrangement ultrasonic automatic target scoring system comprises a closed target cavity 101, 5 closed U-shaped arrangement ultrasonic sensors 104, a temperature sensor 109, a sensor mounting seat 105, an ultrasonic signal acquisition and processing circuit board, a communication module, a target channel branch control computer, a network switch or a Wifi wireless router, a target channel general control computer, a watching television and a score output printer; five closed U-shaped array ultrasonic sensors 104 and a temperature sensor 109 are arranged below the closed acoustic cavity, the output ends of the ultrasonic sensors and the temperature sensor are connected with an ultrasonic signal acquisition and processing circuit board through signal cables, and the ultrasonic signal acquisition and processing circuit board is connected with a communication module through signal cables; the communication module is in wired or wireless communication with the target track general control computer through a network switch or a Wifi wireless router, and the calculation result of the ultrasonic signal acquisition and processing circuit board is sent to the target track general control computer; the general control computer is connected with the target path branch control computer and the watching television through network cables, and issues the shooting scores to the target path branch control computer and the watching television for display; the target machine master control computer opens a sub-control operation function to the target path sub-control computers; the target path general control computer is connected with the printer and can output the shooting scores as paper media at any time.
Preferably, the closed target cavity has a clutter dry burning function outside the isolation target reporting area, is formed by a frame and front and rear target receiving surfaces, and has the function of forming a relatively stable ultrasonic wave propagation environment in the closed target cavity, and when the projectile passes through the front and rear target surfaces, the projectile rubs against the target surfaces to generate an ultrasonic wave source;
preferably, the five arc-shaped ultrasonic sensors adopt 18K ultrasonic sensors, the effective detection distance is not less than 1m, the detection boundary included angle is not less than 120 degrees, and the five arc-shaped ultrasonic sensors are used for detecting the distance from an ultrasonic source to a detection surface of the sensor.
Preferably, the temperature sensor is used for detecting the environmental temperature data inside the closed target cavity.
Preferably, the sensor mounting seat is used for mounting a fixing base for the ultrasonic device and the temperature sensor, an insulating rubber shock pad is additionally arranged between the ultrasonic sensor and the sensor mounting seat, and insulation treatment is carried out between the temperature sensor and the sensor mounting seat.
Preferably, the ultrasonic signal acquisition and processing circuit board is a core component for receiving, processing, resolving and outputting resolving results of the ultrasonic signals and the ambient temperature signals.
Preferably, the communication module is a communication component for uploading numerical information of the impact point coordinates resolved by the ultrasonic signal acquisition and processing circuit board to the target track general control computer, the communication mode is wired/wireless compatible, and the communication mode is realized by adopting a network switch or a Wifi wireless router.
Preferably, the target way general control computer can display (X, Y) coordinate values in the target-reporting software according to the mathematical model, then judge the ring number and the azimuth information according to the target shape, and send the final result to the target way branch control computer and the watching television through the network switch; the target path general control computer opens a sub-control function to the target path sub-control computer, and the external printer of the target path general control computer can print shooting scores of shooters.
Example 4: a closed U-shaped arrangement ultrasonic automatic target scoring system comprises a closed target cavity, five closed U-shaped arrangement ultrasonic sensors, a temperature sensor, a sensor mounting seat, an ultrasonic signal acquisition and processing circuit board, a communication module, a circuit board and communication module power supply battery pack, a target path branch control computer, a network switch or a Wifi wireless router, a target path general control computer, a watching television and a score output printer; five closed U-shaped array ultrasonic sensors and a temperature sensor are arranged below the closed target cavity, the output ends of the ultrasonic sensors and the temperature sensor are connected with an ultrasonic signal acquisition and processing circuit board through signal cables, and the ultrasonic signal acquisition and processing circuit board is connected with a communication module through signal cables; the communication module is in wired or wireless communication with the target track general control computer through a network switch or a Wifi wireless router, and the calculation result of the ultrasonic signal acquisition and processing circuit board is sent to the target track general control computer; the general control computer is connected with the target path branch control computer and the watching television through network cables, and issues the shooting scores to the target path branch control computer and the watching television for display; the target machine master control computer opens a sub-control operation function to the target path sub-control computers; the target path general control computer is connected with the printer and can output the shooting scores as paper media at any time.
The closed target cavity has the function of isolating clutter interference outside the target reporting area and is formed by a frame and front and rear target receiving surfaces; forming a relatively stable ultrasonic wave propagation environment in the closed target cavity, and generating ultrasonic waves by friction with the target surface when the projectile passes through the front target surface and the rear target surface; the bottom of the closed target cavity is provided with an ultrasonic signal acquisition probe part which is arranged in an arc shape and is used for acquiring ultrasonic signals generated by friction between the projectile and the target surface and the ambient temperature in the closed target cavity; the five ultrasonic sensors are arranged on the sensor mounting seat in a concentric circle and same radius arc line mode, and the included angle between the axes of the adjacent sensors is 15 degrees; the temperature sensor device is arranged on the sensor mounting seat.
The No. 1 ultrasonic probe, the No. 3 ultrasonic probe and the No. 5 ultrasonic probe are a group to carry out the first ultrasonic signal detection, and corresponding coordinate values (X1, Y1) are calculated through an ultrasonic signal acquisition and processing circuit board; the No. 2 ultrasonic probe, the No. 3 ultrasonic probe and the No. 4 ultrasonic probe are a group to carry out secondary ultrasonic signal detection, and corresponding coordinate values (X2, Y2) are solved again through an ultrasonic signal acquisition and processing circuit board; and (X1, Y1) and (X2, Y2) are subjected to average value operation, and the balance of the ultrasonic probe and the machining error of the mechanical structure are compensated to obtain the coordinate values (X, Y) of the impact point.
The ultrasonic signal acquisition and processing circuit board comprises five sensor signal acquisition circuits, and is provided 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 comprises five sensor preamplification circuits, a signal filter circuit, a main amplification circuit, a voltage follower circuit and a voltage comparison circuit, and is provided with a time difference measuring instrument, a temperature acquisition circuit, a main control chip, a wireless communication module and a power supply converter; the pre-amplification circuit is connected with the primary filter circuit, amplifies the signal received by the ultrasonic sensor to a certain amplitude and then sends the signal to the signal filter circuit; the signal filter circuit is connected with the main amplifying circuit, and the signal filter circuit effectively filters interference noise signals and then sends the signals to the main amplifying circuit; the main amplifying circuit is used for enhancing the signal intensity; the voltage follower circuit is connected with the main amplifying circuit and is used for enhancing the output driving capability of signals; the voltage comparison circuit is used for judging the output strength of the signal and connecting the output with the time difference measuring instrument; the time difference measuring instrument measures the time difference through the pulse counting circuit and sends the accurate measurement result of the time difference of the five ultrasonic signals to the main control chip through the address bus and the data bus; the temperature acquisition circuit acquires an environmental temperature value and sends acquired temperature data to the main control chip through the single bus; the main control chip transmits the time difference and temperature data of the five paths of ultrasonic signals to the target track master control computer through the wireless communication module.
The power supply battery pack of the circuit board and the communication module provides an effective working power supply for all parts of the ultrasonic signal acquisition and processing circuit board and the communication module.
The network switch or the Wifi wireless router can effectively send data signals collected from a plurality of targets to a target track master control computer, the target track master control computer is provided with software for centralized control and score statistics, scores of all shooting positions can be effectively managed, and a shooting score sheet can be printed through a printer.
The target path general control computer can display (X, Y) coordinate values in target-reporting software according to the mathematical model, then judge the ring number and the azimuth information according to the target shape, and send the final result to the target path branch control computer and the watching television through the network switch; the target path general control computer opens a sub-control function to the target path sub-control computer, and the external printer of the target path general control computer can print shooting scores of shooters.
Claims (9)
1. The utility model provides an automatic target system that reports of closed U type arrangement supersound, includes target, communication network, total control system, is equipped with the data acquisition subassembly on the target, and the data acquisition subassembly gathers the data of hitting the point to will hit the point and send for total control system through communication network with hitting the point, total control system gives the shooting score, its characterized in that: the target comprises a target cavity and a target frame, the target cavity is arranged on the target frame, and a fixed base is arranged on the target frame; the data acquisition assembly comprises ultrasonic sensors which are arranged on a fixed base in a U-shaped array;
the data acquisition assembly comprises 5 ultrasonic sensors, the 5 ultrasonic sensors are arranged on the fixed base in a concentric circle and arc line with the same radius, and the included angle between the axes of the adjacent sensors is 10-30 degrees.
2. The closed U-shaped arrangement ultrasonic automatic target scoring system according to claim 1, characterized in that: the 5 ultrasonic sensors are on the same longitudinal plane.
3. The closed U-shaped arrangement ultrasonic automatic target scoring system according to claim 1, characterized in that: the data acquisition assembly also comprises an ultrasonic signal acquisition and processing circuit board, and the ultrasonic signal acquisition and processing circuit board is in electric signal connection with the ultrasonic sensor; the 5 ultrasonic sensors are sequentially provided with a No. 1 ultrasonic probe, a No. 2 ultrasonic probe, a No. 3 ultrasonic probe, a No. 4 ultrasonic probe and a No. 5 ultrasonic probe from left to right, wherein the No. 1 ultrasonic probe, the No. 3 ultrasonic probe and the No. 5 ultrasonic probe form a group to carry out first ultrasonic signal detection, and corresponding coordinate values (X1, Y1) are calculated through an ultrasonic signal acquisition and processing circuit board; the No. 2 ultrasonic probe, the No. 3 ultrasonic probe and the No. 4 ultrasonic probe are a group to carry out secondary ultrasonic signal detection, and corresponding coordinate values (X2, Y2) are solved again through an ultrasonic signal acquisition and processing circuit board; the ultrasonic signal acquisition and processing circuit board performs average value operation on (X1, Y1) and (X2, Y2), and transmits the calculated average value (X, Y) of (X1, Y1) and (X2, Y2) as a coordinate value of the impact point to the overall control system.
4. The closed U-shaped arrangement ultrasonic automatic target scoring system according to claim 3, characterized in that: the ultrasonic signal acquisition and processing circuit board comprises 5 sensor signal acquisition circuits, a sensor preamplification circuit, a signal filter circuit, a main amplification circuit, a voltage follower circuit and a voltage comparison circuit, and is provided with a time difference measuring instrument, a main control chip, a wireless communication module and a power supply converter;
the 5-path sensor signal acquisition circuit respectively acquires ultrasonic signals of a No. 1 ultrasonic probe, a No. 2 ultrasonic probe, a No. 3 ultrasonic probe, a No. 4 ultrasonic probe and a No. 5 ultrasonic probe and sends the ultrasonic signals to the preamplification circuit;
the pre-amplification circuit is connected with the primary filter circuit, amplifies the signal received by the ultrasonic sensor to a certain amplitude and then sends the signal to the signal filter circuit;
the signal filtering circuit is connected with the main amplifying circuit, and is used for effectively filtering interference noise signals and then sending the signals to the main amplifying circuit, and the main amplifying circuit is used for enhancing the signal intensity;
the voltage follower circuit is connected with the main amplifying circuit and is used for enhancing the output driving capability of signals;
the voltage comparison circuit is connected with the voltage follower circuit and used for judging the output intensity of the signals and connecting the output with the time difference measuring instrument, the time difference measuring instrument measures the time difference through the pulse counting circuit and sends the accurate measurement result of the time difference of the ultrasonic signals to the main control chip through the address bus and the data bus;
the main control chip transmits the time difference of the 5 paths of ultrasonic signals to a target track master control computer through a wireless communication module;
the ultrasonic signal acquisition and processing circuit board further comprises a circuit board and a communication module power supply battery pack, wherein the circuit board and the communication module power supply battery pack provide power sources for effective work for all parts of the ultrasonic signal acquisition and processing circuit board and the communication module.
5. The closed U-shaped arrangement ultrasonic automatic target scoring system according to claim 4, characterized in that: the data acquisition assembly further comprises a temperature sensor and a temperature acquisition circuit, and the temperature sensor is arranged in the closed target cavity; the temperature acquisition circuit is connected with the main control chip through the single bus, acquires an environmental temperature value through the temperature sensor and sends acquired temperature data to the main control chip through the single bus.
6. The closed U-shaped arrangement ultrasonic automatic target scoring system according to claim 1, characterized in that: the target cavity comprises a frame and front and rear target surfaces to be bounced, the frame comprises a left side plate, a right side plate and an upper top plate, wherein the left side plate, the right side plate, the upper top plate, the front target surface to be bounced and the rear target surface to be bounced jointly form the target cavity with an opening at the bottom, the left side plate is sealed with the joints of the upper top plate, the front target surface to be bounced and the rear target surface to be bounced in a gluing mode, and the right side plate is sealed with the joints of the upper top plate, the front target surface to be bounced and the rear;
the target frame comprises an ultrasonic probe mounting seat and a supporting seat, the ultrasonic probe mounting seat is fixed on the upper portion of the supporting seat, the size of the ultrasonic probe mounting seat is smaller than that of an opening in the bottom of the target cavity, the ultrasonic probe mounting seat is embedded into the target cavity, and a seam between the opening in the bottom of the target cavity and the supporting seat is sealed through glue.
7. The closed U-shaped arrangement ultrasonic automatic target scoring system according to claim 1, characterized in that: the 5 ultrasonic sensors arranged in an arc shape adopt 18K ultrasonic sensors, the effective detection distance is not less than 1m, and the detection boundary included angle is not less than 120 degrees.
8. The utility model provides a closed U type arrangement supersound automatic target scoring system which characterized in that: the system comprises a closed target cavity, five closed U-shaped arrayed ultrasonic sensors, a temperature sensor, a sensor mounting seat, an ultrasonic signal acquisition and processing circuit board, a communication module, a target path branch control computer, a network switch or a Wifi wireless router, a target path general control computer, a watching television and a score output printer; 5 closed U-shaped array ultrasonic sensors and 1 temperature sensor are arranged below the closed target cavity, the output ends of the ultrasonic sensors and the temperature sensors are connected with an ultrasonic signal acquisition and processing circuit board through signal cables, and the ultrasonic signal acquisition and processing circuit board is connected with a communication module through signal cables; the communication module is in wired or wireless communication with the target track general control computer through a network switch or a Wifi wireless router, and the calculation result of the ultrasonic signal acquisition and processing circuit board is sent to the target track general control computer; the general control computer is connected with the target path branch control computer and the watching television through network cables, and issues the shooting score to the target path branch control computer and/or the watching television for display; the target machine master control computer opens a sub-control operation function to the target path sub-control computers; the target path general control computer is connected with the printer and can output the shooting scores as paper media at any time.
9. The closed U-shaped arrangement ultrasonic automatic target scoring system according to claim 8, characterized in that: the target path general control computer displays (X, Y) coordinate values in the target-reporting software according to the mathematical model, then judges the ring number and the orientation information according to the target shape, and sends the final result to the target path branch control computer and/or the watching television through the network switch.
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| CN202021053674.5U CN213481140U (en) | 2020-06-10 | 2020-06-10 | Closed U-shaped array ultrasonic automatic target scoring system |
| PCT/CN2021/091918 WO2021249065A1 (en) | 2020-06-10 | 2021-05-06 | Closed u-shaped array ultrasonic automatic target-scoring system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111879182A (en) * | 2020-06-10 | 2020-11-03 | 南京润景丰创信息技术有限公司 | Closed U-shaped array ultrasonic automatic target scoring system |
| CN111879182B (en) * | 2020-06-10 | 2024-05-24 | 南京润景丰创信息技术有限公司 | Closed U-shaped array ultrasonic automatic target reporting system |
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