CN115930689A - Automatic target-scoring system and method based on shell-throwing port detection technology - Google Patents
Automatic target-scoring system and method based on shell-throwing port detection technology Download PDFInfo
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Abstract
The invention discloses an automatic target-scoring system and method based on a shell-throwing port detection technology, wherein the automatic target-scoring system comprises a target surface information acquisition subsystem, a target surface information acquisition subsystem and a shell-throwing port detection subsystem, wherein the target surface information acquisition subsystem is used for acquiring target surface information; the bullet shooting information capturing subsystem comprises a projectile port detecting module which is used for acquiring projectile information; the data processing subsystem further comprises a judging module, wherein the judging module is used for judging shooting hit conditions according to the target surface information and the throwout information, and the shooting hit conditions comprise a hit target, a hit non-target and a miss target; the data processing subsystem also comprises a shooting result counting module, and the shooting result counting module is used for counting the number of hit rings when a target is hit and a non-target is hit; the data processing subsystem also comprises a bullet consumption statistical module, and the bullet emission statistical module is used for judging whether the projectile is a shell or a live bullet according to the shape of the projectile and obtaining the bullet consumption number according to the number of the projectiles.
Description
Technical Field
The invention relates to the technical field of analysis and processing of firing practice scores, in particular to an automatic target scoring system and method based on a shell throwing port detection technology.
Background
At present, the automatic target-scoring system used in the training of the firing practice of troops mainly adopts the methods of shock wave target scoring, grating target scoring, image acquisition and the like to score the target to obtain the information of the number of hit rings, hit time, hit sequence and the like of each projectile, but the above methods are only limited to the case that the projectile normally hits the target (target surface). In fact, in practice shooting training, the condition that the projectile is not attached to a target (target surface) frequently occurs, for example, a part of the projectile is easy to fly off due to the psychological influence of shooting or poor skill mastering of a new soldier; the slamming of the trigger when the shooter of a pistol fires causes the projectile to be deflected significantly "on the ground". Statistically, the projectiles that occur are about 8% to 15%. When this occurs, existing automatic target scoring systems default to "no shooter" because no "signal" is captured, which results in missed reports and necessarily results in all missed target scoring for the hit sequence of subsequent projectiles. In addition, the shooters sometimes see wrong targets and hit wrong targets due to tension, if more than two shooters shoot on the same target, the existing automatic target scoring system cannot distinguish and distinguish, so that 'mixed report' is generated, and the target scoring information of other shooters (normal shooters) without wrong targets is seriously influenced. Under the condition of no distinguishing and distinguishing, when the performance of a normal shooter is counted, the conventional method is to calculate the actual shooting shot number with a higher ring number on a target. It is obvious that there is a large deviation from the actual hit (or miss) information to affect the benefit of the practice shooting training. Meanwhile, the situations of miss-target and miss-report, sequence dislocation, wrong-hit and miss-scoring and the like not only influence the accuracy of target report information, but also are difficult to trace the real shooting situation and ammunition consumption situation, so that the safety management and control of training ammunition are influenced.
Disclosure of Invention
To overcome the above-mentioned deficiencies in the prior art, the present invention provides an automatic target-scoring system and method based on a shell-rejection detection technique, so as to solve at least one of the above-mentioned technical problems.
Based on an aspect of the present invention, an automatic target scoring system based on a shell rejection detection technology is provided, including:
the target surface information acquisition subsystem is used for acquiring target surface information, and the target surface information comprises the hit time and the number of hit rings of each shooting;
the bullet shooting information capturing subsystem is arranged on the gun and comprises a projectile opening detecting module used for acquiring projectile information which comprises projectile time, projectile speed and projectile shape;
the data processing subsystem comprises a first data transmission module, and the first data transmission module is used for receiving the target surface information and the projectile information; the data processing subsystem also comprises a judging module, wherein the judging module is used for judging shooting hit conditions according to the target surface information and the throwing object information, and the shooting hit conditions comprise a hit target, a hit non-target and a miss target; the data processing subsystem also comprises a shooting result counting module, and the shooting result counting module is used for counting the number of hit rings when a target is hit and a non-target is hit; the data processing subsystem also comprises a bullet consumption statistical module, and the bullet emission statistical module is used for judging whether the projectile is a shell or a live bullet according to the shape of the projectile and obtaining the bullet consumption number according to the number of the projectiles.
In the technical scheme, the target surface information of the target corresponding to the shooter is obtained through the target surface information obtaining subsystem, the target surface information comprises the hit time and the number of hit rings of the target surface, if the shooter goes out of the target or hits a non-target, the hit time and the number of hit rings of farmers in the target surface information are both null values, and if the shooter hits the target, the data of the hit time and the number of hit rings corresponding to the shooting can be obtained.
The bullet shooting information capturing subsystem can detect the shooting time of the shooting object at the shooting port and takes the time as the bullet shooting time; the distance from the shooting point to the target and the flying speed of the bullet are fixed, the data processing subsystem can calculate the flying time of the bullet according to the distance, and the bullet shooting time and the flying time of the bullet are added to obtain the bullet hitting time. And the judgment module compares the bullet hit time obtained by calculation with the hit time in the target surface information, if the two times are matched, the shooting is successful in hitting the target, and otherwise, the shooting may be miss or wrong (hit on a non-target). In order to determine whether the target is missed or wrong, the data processing subsystem calls target surface information of the non-target, compares bullet shooting information of the shooter corresponding to the non-target with the target surface information, and if redundant hit information exists on the non-target, the shooting result of the shooter corresponding to the target is wrong, otherwise, the shooting result is missed.
Based on the automatic target scoring system, accurate judgment of shooting results (target hitting, non-target hitting and miss) of the shooter each time can be achieved, the situations of false report, mixed report, missed report and the like are avoided, and accurate statistics of shooting training results is achieved. Meanwhile, through the analysis of the shape of the projectile at the projectile port, whether the projectile at the projectile port is an unfired bullet or a bullet shell generated after the projectile is fired is judged, so that the consumption (normal firing) quantity of the bullets is accurately counted, and the safety control of the bullets is ensured.
Furthermore, the ejection port detection module comprises a transmitting-receiving array unit and a data analysis unit, wherein the transmitting-receiving array unit comprises a plurality of groups of optical transmitters and optical receivers which are arranged oppositely; the data analysis unit is connected with the optical receiver and used for receiving the optical signal data received by the optical receiver and analyzing the optical signal data to obtain the information of the projectile.
When no object is thrown out from the throwing port, the light emitted by the light emitter is received by the corresponding light receiver, and when the object is thrown out from the throwing port, the light emitted by the light emitter is shielded by the throwing object (bullet or shell), so that the corresponding light receiver cannot receive the light signal, and therefore whether the throwing object is thrown out from the throwing port or not and the throwing time of the throwing object can be judged. Because there are several groups of optical transmitters and optical receivers, when a cartridge case or bullet is thrown out, there will be a plurality of optical receivers that can not receive optical signals, and the shape of the thrown-out object can be analyzed according to the position of the shielded optical receiver. Based on the shape (including size) of the projectile and the time at which the optical signal is obscured, the projectile velocity can be calculated.
Furthermore, the automatic target scoring system also comprises an alarm module, wherein the alarm module comprises an alarm information generation unit and an alarm; the alarm information generation unit is connected with the judgment module, and when the judgment module judges that the shooting hit condition is hit non-target targets or miss targets, the alarm information generation unit generates an alarm control instruction and transmits the alarm control instruction to the alarm, and the alarm gives an alarm according to the received alarm control instruction.
The alarm is arranged on the firearm or near the shooting position of the shooter, and when the shooting of the shooter is off-target or hits a non-target, the alarm gives an alarm to remind the shooter to identify the correct target again, so that the training effect of the shooter is improved.
Furthermore, the alarm is an audible and visual alarm.
The audible and visual alarm is adopted to remind the shooter in the form of sound and light, so that the shooter can receive the alarm signal of the alarm.
Further, the alarm control instruction comprises a first alarm control instruction and a second alarm control instruction, the alarm information generating unit generates the first alarm control instruction when the shooting hit condition is off-target, the alarm information generating unit generates the second alarm control instruction when the shooting hit condition is hit on a non-target, and the audible and visual alarm receives the first alarm control instruction and the second alarm control instruction in different alarm modes.
When the shooter goes off the target or hits the non-target, the alarm has different alarm modes (the audible and visual alarm gives out alarm sound and light with different frequencies), so that the shooter can specifically know whether the target is off the target or hits the non-target, and the aiming direction and shooting action of the shooter at the next shooting can be adjusted in a targeted manner.
Furthermore, the automatic target scoring system also comprises a target position display terminal, and the target position display terminal is connected with the data processing subsystem and is used for displaying the number of hit rings to the shooter.
The shooting score of the shooter at the last time can be conveniently mastered in time through the display terminal, so that corresponding adjustment is carried out in the next shooting, and the training effect is improved.
Based on another aspect of the present invention, an automatic target-scoring method based on a shell-rejection detection technology is provided, which specifically includes the following steps:
s1: acquiring information of the throwing object;
s2: judging whether a projectile exists, if so, further judging whether the projectile is a bullet or a cartridge case according to the shape of the projectile, and if so, entering the step S3;
s3: calculating bullet flight time according to the distance from the shooting position to the target and the flight speed of the bullet, and calculating to obtain theoretical hit time according to the bullet flight time and the throwing time of the throwout object; acquiring target surface information of a target, judging whether the hit time is matched with the theoretical hit time, if so, entering a step S4, and if not, entering a step S5;
s4: acquiring the number of hit rings corresponding to the hit time, and counting the number of the hit rings into the shooting score of the corresponding shooter;
s5: calling hit information of other target positions, judging whether redundant hit information exists in the other target positions, and if not, indicating miss; if yes, the step S6 is carried out, wherein the non-target is hit;
s6: and acquiring the number of hit rings corresponding to the redundant hit information on the non-target, and counting the number of hit rings into the shooting result of the corresponding shooter.
In the technical scheme, whether the shot is a normal shot (the shot is a normal shot when the shot is a shell) is judged through the information of the projectile, theoretical hit time is obtained according to the shooting time (the projectile throwing time) and the bullet flight time, the theoretical hit time is matched with the actual hit time, if the matching is successful, the designed normal hit (hit target) is carried out, and if not, the target is missed or hit non-target; judging whether redundant hit information exists after the hit information of the shooter corresponding to the non-target is removed, if so, indicating that the shooting of the shooter corresponding to the target hits the non-target, and the redundant hit information on the non-target is the hit information of the shooter corresponding to the target. Through the scheme, the hitting situation of the shooter at each shooting can be accurately analyzed, the situations of missed report, wrong report and the like of the shooting result are avoided, and the accurate statistics of the training result is realized.
Further, the method for judging whether the projectile is a bullet or a shell in the step S2 is as follows: the length of the projectile is obtained according to the shape of the projectile, whether the length of the projectile is matched with the length of the shell is judged, if yes, the projectile is the shell, if not, whether the length of the projectile is matched with the length of the bullet is judged, and if yes, the projectile is the bullet.
During shooting training, the firearm may experience a stuck bullet fault, where the shooter needs to pull the bolt backwards to eject the unfired bullet from the ejection port. Therefore, the objects thrown from the shell throwing port can be unfired bullets or bullets generated after the bullets are fired, the appearance of the thrown objects at the shell throwing port is analyzed, whether the thrown objects are the bullets or the bullets is judged, the number of the unfired bullets is accurately counted, each issued bullet is fired or recovered, and the bullet safety control risk is avoided.
Further, the automatic target scoring method further comprises the step of generating an alarm control instruction to control an alarm to give an alarm after the target is judged to be missed or hit on a non-target.
Further, the method for judging whether the other target position has redundant hit information includes:
s501: obtaining the hit information of the non-target, and extracting the hit time of the non-target;
s502: obtaining theoretical hit time of the non-target based on the steps S1-S3;
s502: and comparing the hit time of the non-target with the theoretical hit time of the non-target, judging whether redundant hit time of the non-target exists, and if so, indicating that redundant hit information exists in the non-target.
If the non-target does not have a corresponding shooter (i.e. the non-target is not arranged for use) and the non-target obtains hit information, the hit information is redundant hit information; if the non-target has a corresponding shooter (namely, the non-target is arranged for use), the hit information of the shooter corresponding to the non-target is removed, and if redundant hit information is left, the hit information is the hit information of the shooter corresponding to the target.
Compared with the prior art, the invention has the beneficial effects that:
(1) The automatic target scoring system based on the projectile port detection technology provided by the invention can be used for acquiring and comparing the projectile information and the target surface information of the projectile port, accurately judging the shooting hit condition of a shooter, accurately counting the number of hit target targets and hit rings, the number of hit non-target targets and hit rings and the miss condition, truly and accurately acquiring the training condition of the shooter, and improving the safety and efficiency of military training.
(2) Judging whether the projectile is an unfired bullet or a cartridge case according to the shape of the projectile, thereby accurately counting the consumption condition of the bullet and ensuring the safety of bullet management.
(3) The invention provides an automatic target-reporting method based on a projectile mouth detection technology, which judges whether the shooting is normal (normal shooting when the projectile is a cartridge case) or not through projectile information, obtains theoretical hit time according to the shooting time (projectile throwing time) and bullet flight time, matches the theoretical hit time with actual hit time, if the matching is successful, the designed normal hit (hit target) is carried out, otherwise, the target-missing or hit non-target is carried out; judging whether redundant hit information exists after the hit information of the shooter corresponding to the non-target is eliminated, if so, indicating that the shooting of the shooter corresponding to the target hits the non-target, and the redundant hit information on the non-target is the hit information of the shooter corresponding to the target. Through the scheme, the hitting situation of the shooter at each shooting can be accurately analyzed, the situations of missed report, wrong report and the like of the shooting result are avoided, and the accurate statistics of the training result is realized.
Drawings
FIG. 1 is a schematic structural diagram of an automatic target scoring system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a bullet firing information capture subsystem according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a transceiver array unit according to an embodiment of the present invention;
FIG. 4 is a flowchart of an automatic target scoring method according to an embodiment of the invention.
Detailed Description
The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
Example 1
As shown in fig. 1, the present embodiment provides an automatic target scoring system based on a shell-rejection detection technique, which includes:
the target surface information acquisition subsystem is used for acquiring target surface information, and the target surface information comprises the target surface hit time and the number of hit rings; the target surface information acquisition subsystem comprises a target surface information acquisition module and a third data transmission module, and the target surface information acquired by the target surface information acquisition module is transmitted to the third data transmission module;
the bullet shooting information capturing subsystem is arranged on the gun and comprises a projectile opening detecting module used for acquiring projectile information which comprises projectile time, projectile speed and projectile shape; the bullet shooting information capturing subsystem further comprises a second data transmission module, and the second data transmission module is connected with the shell throwing port detection module;
specifically, the ejection opening detection module comprises a receiving and transmitting array unit and a data analysis unit, wherein the receiving and transmitting array unit comprises a plurality of groups of optical transmitters and optical receivers which are arranged oppositely; the data analysis unit is connected with the optical receiver and used for receiving the optical signal data received by the optical receiver and analyzing the optical signal data to obtain the information of the throwing substances;
specifically, as shown in fig. 2, the shape of the ejection port detection module in this embodiment is a cuboid with a length of 23cm, a width of 3cm, and a height of 5cm, a square through hole is formed on the cuboid, a plurality of light emitters (Fya) are arranged on the left inner wall of the square through hole, and a light receiver (Tya) opposite to the light emitter on the left inner wall is arranged on the right inner wall of the square through hole; a plurality of light emitters (Fxa) are arranged on the inner wall of the top of the square through hole, and a light receiver (Txa) opposite to the light emitters on the inner wall of the top is arranged on the inner wall of the bottom of the square through hole; the optical signal transmitted by any one of the optical transmitters can be received by the corresponding optical receiver, and the plurality of groups of optical transmitters and optical receivers form a transceiving array unit. The shell-throwing opening detection module is also provided with a storage battery, and the storage battery is used for supplying power to the optical receiver, the optical transmitter and the data analysis unit.
When the device is used, the projectile port detection module is fixed on a firearm body, so that the projectile port is positioned in the middle of the square through hole, when a bullet or a projectile shell is ejected from the projectile port, a part of optical signals emitted by the optical transmitter (shown in figure 3) can be shielded, a part of optical receivers cannot receive the optical signals, and the shape and the size of the projectile (the bullet or the projectile shell) can be pushed out according to the position of the optical receiver which cannot receive the optical signals, so that whether the bullet or the projectile shell is ejected is determined. Taking a 95-1 type automatic rifle as an example, the shooting speed of single shooting is 40 shots/minute, the theoretical shooting speed is 650 shots/minute and the shooting speed of continuous shooting is 100 shots/minute, the common bullet of the rifle with 5.8mm used by the rifle has the length of 58mm, the weight of 12.63g, the length of 42mm and the weight of 7.13g. It can be seen that the length of the shell is 16mm less than the length of the full projectile, and the difference makes the signals generated when the transmitting and receiving array units are shielded have obvious difference, and the shape of the projectile at the projectile port is determined as the shell according to the number of the optical receivers Txa and Tya shielded by the shell, and the projectile is counted as a shooting 1 projectile.
Preferably, the light emitter in this embodiment is an infrared light emitter, and the infrared light emitter emits an infrared signal; the light receiver in this embodiment is a photodiode. Normally, the ejection time of the shell from the shell ejection port is about 90ms, the response time of the photodiode is 0.5 mu s, and therefore the receiving and transmitting array has enough time to distinguish the sequence of the shells in the single-shot state and the continuous-shot state and sequentially transmit data. The caliber of a common bullet of the 95-1 automatic rifle is 5.8mm, the beam diameter of an infrared light emitter is about 3mm, therefore, the interval of a transceiving array is 2mm, and the transceiving array has enough spatial resolution to identify the shape and the size of a passing object.
The infrared photoelectric emitter and the photodiode have the advantages of small size, simple structure, high sensitivity, sunlight interference resistance, aerodynamic noise interference resistance, all-weather work, low cost and the like, and are suitable for being used in army field firing environment.
The automatic target scoring system also comprises a data processing subsystem, wherein the data processing subsystem comprises a first data transmission module, and the first data transmission module is in wireless communication connection with a second data transmission module and a third data transmission module respectively and is used for realizing wireless transmission of data; the first data transmission module is used for receiving the target surface information and the projectile information; the data processing subsystem also comprises a judging module, wherein the judging module is used for judging shooting hit conditions according to the target surface information and the projectile information, and the shooting hit conditions comprise a hit target, a hit non-target and a miss; the data processing subsystem also comprises a shooting result counting module, and the shooting result counting module is used for counting the number of hit rings when a target is hit and a non-target is hit; the data processing subsystem also comprises a bullet consumption statistical module, and the bullet emission statistical module is used for judging whether the projectile is a shell or a live bullet according to the shape of the projectile and obtaining the bullet consumption number according to the number of the projectiles.
As a preferred embodiment, the automatic target scoring system further comprises an alarm module, wherein the alarm module comprises an alarm information generation unit and an alarm; the alarm information generation unit is connected with the judgment module, and when the judgment module judges that the shooting hit condition is hit non-target targets or miss targets, the alarm information generation unit generates an alarm control instruction and transmits the alarm control instruction to the alarm, and the alarm gives an alarm according to the received alarm control instruction.
Preferably, the alarm is an audible and visual alarm.
Specifically, the alarm control instruction comprises a first alarm control instruction and a second alarm control instruction, the alarm information generation unit generates the first alarm control instruction when the shooting hit condition is off-target, the alarm information generation unit generates the second alarm control instruction when the shooting hit condition is hit on a non-target, and the alarm modes are different when the audible and visual alarm receives the first alarm control instruction and the second alarm control instruction.
When the shooter goes off the target or hits the non-target, the alarm has different alarm modes (the audible and visual alarm gives out alarm sound and light with different frequencies), so that the shooter can specifically know whether the target is off the target or hits the non-target, and the aiming direction and shooting action of the shooter at the next shooting can be adjusted in a targeted manner.
As a preferred implementation, the automatic target scoring system further comprises a target position display terminal, and the target position display terminal is connected with the data processing subsystem and is used for displaying the number of hit rings to the shooter.
The shooting score of the shooter at the last time can be conveniently mastered in time through the display terminal, so that corresponding adjustment is carried out in the next shooting, and the training effect is improved.
The data processing subsystem also comprises a display screen, the display screen is used for displaying the hit condition of a shooter and the ammunition consumption condition, and managers can master the conditions in real time through the display screen.
Example 2
As shown in fig. 4, the present embodiment provides an automatic target-scoring method based on a shell-rejection detection technology, which specifically includes the following steps:
s1: acquiring information of the throwout object;
s2: judging whether a projectile exists, if so, further judging whether the projectile is a bullet or a cartridge case according to the shape of the projectile, and if the projectile is the cartridge case and shows that the bullet is fired, entering step S3; the method for judging whether the projectile is a bullet or a shell comprises the following steps: acquiring the length of the projectile according to the shape of the projectile, judging whether the length of the projectile is matched with the length of the cartridge case, if so, judging that the projectile is the cartridge case, and entering the step S3; if not, judging whether the length of the projectile is matched with the length of the bullet, and if so, judging the projectile to be the bullet;
s3: calculating bullet flight time according to the distance from the shooting position to the target and the flight speed of the bullet, and calculating to obtain theoretical hit time according to the bullet flight time and the throwing time of the throwout object; acquiring target surface information of a target, judging whether the hit time is matched with the theoretical hit time, if so, indicating that the projectile hits the target (namely normal hit), entering step S4, and if not, indicating that the projectile misses the target or hits a non-target (namely wrong target), entering step S5;
s4: acquiring the number of hit rings corresponding to the hit time, and counting the number of hit rings into the shooting score of the corresponding shooter;
s5: calling hit information of other targets (non-target targets), judging whether redundant hit information exists in the other targets, and if not, indicating that the targets are missed; if yes, the step S6 is carried out, wherein the non-target is hit; the method for judging whether other target positions (non-target targets) penetrate through redundant hit information comprises the following steps:
s501: obtaining the hit information of the non-target, and extracting the hit time of the non-target;
s502: obtaining theoretical hit time of the non-target based on the steps S1-S3;
s502: comparing the hit time of the non-target with the theoretical hit time of the non-target, judging whether redundant hit time of the non-target exists, if so, indicating that redundant hit information exists in the non-target, and entering the step S6;
s6: and acquiring the number of hit rings corresponding to the redundant hit information on the non-target, and counting the number of hit rings into the shooting result of the corresponding shooter.
Examples are as follows:
s1: the target of the shooter A is assumed to be a target A, a bullet shooting information capturing subsystem A is installed on a firearm used by the shooter A, and a target surface information obtaining subsystem A is arranged on the target A. The bullet generation information capturing subsystem A acquires the information A of the projectile at the projectile opening and transmits the information A of the projectile to the data processing subsystem (the data processing subsystem is in wireless communication connection with a plurality of bullet emission information capturing subsystems and a target surface information acquiring subsystem);
s2: a judging module in the data processing subsystem judges whether the information of the projectile is a null value (when no projectile exists at the projectile port, the information of the projectile is the null value), if not, the projectile is thrown from the projectile port, and then the projectile is judged to be a shell or a bullet according to the shape and the size of the projectile, and if the projectile is the shell, the shooter A finishes a normal shooting;
s3: according to the distance L from the shooting position of the shooter A to the target A A And the flight speed of the bullet calculates the bullet flight time t A According to the time of flight t of the bullet A Calculating the projectile throwing time obtained by the bullet generation information capturing subsystem A to obtain the theoretical target hitting time of the target A; acquiring target surface information A of a target A by a target surface information acquisition subsystem, acquiring the actual hit time of the target A, judging whether the actual hit time of the target A is matched with the theoretical hit time of the target A, if so, indicating that the shooter A hits the target A (namely hits the target), and then entering step S4; if not, the shooter A is not hit by the target A, and the step S5 is entered;
s4: acquiring the number of hit rings on the target A, and counting the number of hit rings into the design score of the shooter A;
s5: and calling target surface information B of other target positions (such as the target B), acquiring whether other shooters use the target B, judging whether the target surface information B is a null value if no shooter uses the target B, indicating that the shooting result of the shooter A is miss if the target surface information B is the null value, and indicating that the shooter A hits the target B (namely hits a non-target) if the target surface information B is not the null value. If a shooter (shooter B) is using the target B, acquiring the projectile information B through a bullet shooting information capturing subsystem B installed on a shooter B firearm; calculating to obtain the theoretical hit time of the target B, and comparing the actual hit time in the target surface information B with the theoretical hit time of the target B to obtain the hit information of the shooter B in the target surface information B; after the hit information of the shooter B is removed, if redundant hit information exists in the target surface information B, the shooter A shoots the target B (namely, hits a non-target), and then the step S6 is carried out; if the target surface information B does not have redundant hit information, indicating that the shooter A is off target;
s6: and acquiring the number of hit rings corresponding to redundant hit information on the target B, counting the number of hit rings into the shooting score of the shooter A, and triggering an alarm to prompt the shooter A to hit the non-target.
When the projectile is normally launched and the shell is not ejected, the shielding time of the shell for the light emitted by the light emitter is 0; if the bullet is stuck at the shell throwing opening, the bullet shell can continuously shield the light emitted by the light emitter, the theoretical shielding time is infinite (until the fault is eliminated), and the time for throwing the bullet shell out of the shell throwing opening under the normal shooting condition is about 90ms. Therefore, the above-described cases can be distinguished according to the light signal blocking time.
When the bullet contained by the shooter is blocked, the shooter pulls the gun machine backwards to eject the unfired bullet from the ejection opening. The quantity of the firing ammunition should not be counted because the ejection bullet throws out a live ammunition which is not used yet. At this time, the judgment can be made according to the fact that the shielding light signals are different due to the difference between the length of the cartridge case and the length of the full cartridge. Taking a 5.8mm rifle common bullet as an example, the full bullet is 58mm long, and the shell is about 42mm long. The number of the light signals blocked when the cartridge case or the unused bullet passes through the covering surface can be calculated according to the full covering of the plane formed by the light emitter and the light receiver on the ejection opening, and the cartridge case and the unused bullet are judged according to the length of the cartridge case < the length of the unused bullet = the length of the exposed bullet head + the length of the cartridge case (namely, the light signal blocked by the cartridge case < the light signal blocked by the unused bullet). When it is determined that an unused round is thrown, the system will not count the current amount of ammunition consumed and determine that the shooter has not fired.
The other method is as follows: because the live ammunition mass is greater than the shell mass, the live ammunition weighs about 12.63g, and the shell weighs about 7.13g, according to the shell throwing principle of the automatic rifle, by utilizing the formula of elastic potential energy Ep and kinetic energy Ek, the bullet has the following characteristics:
k is the elastic recovery coefficient, x is the compression, further:
m is the object mass, v is the object speed, according to the law of conservation of energy, gunpowder combustion gas promotes rifle bolt reentry spring and moves backward, and the reentry spring obtains elastic potential energy, and converts kinetic energy into, drives and grabs the bullet hook and grabs the shell case from the chamber to throw out the shell mouth, and Ep = Ek then has:
further, the ejection speed is known as:
given a rifle shell weight of 7.13g and a full shot weight of about 12.63g, there are:
v cartridge case ＞v Live ammunition
The ejection speed of the shell from the ejection opening is far higher than the ejection speed of a shooter manually retreating the live ammunition (the live ammunition is heavier), so that the live ammunition and the shell can be accurately distinguished according to the ejection speed of the ejection.
When the projectile hit information and the projectile launch information are consistent in quantity and time (the difference between the launch time and the hit time is the flight time of the projectile, and the time difference between the launch time and the hit time is constant under the condition that the distance and the initial speed of the projectile are constant), judging that the projectile normally hits; when the projectile time (projectile throwing time) information is generated and the hit time information is not generated, the projectile of the shooter is off-target or hits a non-target, the hit information of other targets can be taken to be compared with the projectile launching information, if the hit information of the non-target is matched, the shooter is mistargeted, the projectile counts the score of the shooter, and the shooter is timely reminded to identify the correct target by controlling an alarm to give an alarm.
In the cooperative shooting training of a combat group, a plurality of shooters shoot a plurality of invisible targets which appear repeatedly. For example, there are 3 shooters numbered X1, X2, X3, respectively, and 6 targets (targets) numbered Y1, Y2, Y3, Y4, Y5, Y6, respectively. By using the method in the embodiment, according to the target number and the shooter number, the report of information such as the number of rings, the number of issues, the time and the like when each shooter hits each target can be accurately realized, the system can calculate and judge the damage strength of the target (target) according to the number of hit rings, and if the target Y5 is damaged and the shooter X2 hits Y5 for the 1 st time in 7 rings, the target Y5 can be judged to be light damage; the target Y5 still has the fighting capability and can display the target again, and when the 2 nd hit of the shooter X1 is 10 rings, the target Y5 can be judged to be eliminated and no longer displays the target. Therefore, the method provided by the embodiment can effectively enhance the benefit of the cooperative shooting training, and the cooperative shooting training can realize accurate analysis and restore the actual hit condition by using the automatic target scoring method.
In the invention, the time data acquisition is accurately recorded as t Accuracy of measurement The following is an analysis of the probability that when two shooters fire at the same time, one is off target and the other is mistargeted (hits on non-target targets):
according to the statistics of a large amount of sample data, when the number of bullets shot to a fixed target is n, the total shooting time is t according to the outline requirement General assembly Let us say that when the shooter shoots the ith shot, the use time is recorded as t i (i =1,2, …, n) then there are:
further, the average miss ratio is
The average mistargeting rate is>
The probability P of the above situation (one shooter missing a target, another shooter hitting a non-target) is:
when the hidden and displayed target is shot, the target display time is set as t Display device Each time of firing n 1 Burst, probability P of occurrence of the above Invisible and visible display Comprises the following steps:
therefore, when the time data acquisition is accurate to 0.01 second, when two shooters fire at the same time, one shooter is off-target and the other shooter is wrong. According to a large amount of sample data statistics, 5 bullets are shot on a fixed target, the total use time of a shooter after 5 times of shooting is 126 seconds, namely:
when 10 shooters take part in shooting, the probability of the above situations is as follows:
when the hidden target is shot, the target display time is 6 seconds, 2 continuous shots are shot each time, and the probability of the situation is as follows:
it can be seen that the specific example case still has extremely strong operability.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention.
Claims (10)
1. An automatic target scoring system based on a shell rejection port detection technology is characterized by comprising:
the target surface information acquisition subsystem is used for acquiring target surface information, and the target surface information comprises the hit time and the number of hit rings of each shooting;
the bullet shooting information capturing subsystem is arranged on the gun and comprises a projectile opening detecting module used for acquiring projectile information, and the projectile information comprises projectile time, projectile speed and projectile shape;
the data processing subsystem comprises a first data transmission module, and the first data transmission module is used for receiving the target surface information and the projectile information; the data processing subsystem also comprises a judging module, wherein the judging module is used for judging shooting hit conditions according to the target surface information and the throwing object information, and the shooting hit conditions comprise a hit target, a hit non-target and a miss target; the data processing subsystem also comprises a shooting result counting module, and the shooting result counting module is used for counting the number of hit rings when a target is hit and a non-target is hit; the data processing subsystem also comprises a bullet consumption statistical module, and the bullet emission statistical module is used for judging whether the projectile is a shell or a live bullet according to the shape of the projectile and obtaining the bullet consumption number according to the number of the projectiles.
2. The automatic target scoring system based on the shell rejection detection technology as claimed in claim 1, wherein the shell rejection detection module comprises a transceiver array unit and a data analysis unit, the transceiver array unit comprises a plurality of sets of optical transmitters and optical receivers oppositely arranged; the data analysis unit is connected with the optical receiver and used for receiving the optical signal data received by the optical receiver and analyzing the optical signal data to obtain the information of the projectile.
3. The automatic target scoring system based on the shell rejection detection technology as claimed in claim 1, wherein the automatic target scoring system further comprises an alarm module, the alarm module comprises an alarm information generation unit and an alarm; the alarm information generating unit is connected with the judging module, and when the judging module judges that the shooting hit condition is hit on a non-target or miss, the alarm information generating unit generates an alarm control instruction and transmits the alarm control instruction to the alarm, and the alarm gives an alarm according to the received alarm control instruction.
4. The automatic target scoring system based on the shell rejection detection technology as claimed in claim 3, wherein the alarm is an audible and visual alarm.
5. The automatic target-scoring system based on the shell-throwing port detection technology as claimed in claim 4, wherein the alarm control command comprises a first alarm control command and a second alarm control command, the alarm information generating unit generates the first alarm control command when the shooting hit condition is miss, the alarm information generating unit generates the second alarm control command when the shooting hit condition is hit on a non-target, and the alarm modes are different when the audible and visual alarm receives the first alarm control command and the second alarm control command.
6. The automatic target scoring system based on the projectile detection technology as claimed in claim 5, further comprising a target position display terminal, wherein the target position display terminal is connected with the data processing subsystem for displaying the number of hit rings to the shooter.
7. An automatic target scoring method based on a shell-throwing port detection technology, which is used for realizing the statistics of shooting results based on the automatic target scoring system based on the shell-throwing port detection technology as claimed in any one of claims 1 to 6, and is characterized by comprising the following steps:
s1: acquiring information of the throwing object;
s2: judging whether a projectile exists, if so, further judging whether the projectile is a bullet or a cartridge case according to the shape of the projectile, and if so, entering the step S3;
s3: calculating bullet flight time according to the distance from the shooting position to the target and the flight speed of the bullet, and calculating to obtain theoretical hit time according to the bullet flight time and the throwing time of the throwout object; acquiring target surface information of a target, judging whether the hit time is matched with the theoretical hit time, if so, entering a step S4, and if not, entering a step S5;
s4: acquiring the number of hit rings corresponding to the hit time, and counting the number of the hit rings into the shooting score of the corresponding shooter;
s5: calling hit information of other target positions, judging whether redundant hit information exists in the other target positions, and if not, indicating that the target is missed; if yes, the step S6 is carried out, wherein the non-target is hit;
s6: and acquiring the number of hit rings corresponding to redundant hit information on the non-target, and counting the number of hit rings into the shooting score of the corresponding shooter.
8. The automatic target scoring method according to claim 7, wherein the method for determining whether the projectile is a bullet or a shell in step S2 comprises: the length of the projectile is obtained according to the shape of the projectile, whether the length of the projectile is matched with the length of the shell is judged, if yes, the projectile is the shell, if not, whether the length of the projectile is matched with the length of the bullet is judged, and if yes, the projectile is the bullet.
9. The automatic target scoring method based on the shell throwing port detection technology as claimed in claim 8, wherein the automatic target scoring method further comprises generating an alarm control command to control an alarm to give an alarm after the target is determined to be missed or hit on a non-target.
10. The automatic target scoring method based on the shell rejection detection technology as claimed in claim 9, wherein the method for determining whether the other target has redundant hit information is as follows:
s501: obtaining the hit information of the non-target, and extracting the hit time of the non-target;
s502: obtaining theoretical hit time of the non-target based on the steps S1-S3;
s502: and comparing the hit time of the non-target with the theoretical hit time of the non-target, judging whether redundant hit time of the non-target exists, and if so, indicating that redundant hit information exists in the non-target.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113790630A (en) * | 2021-10-17 | 2021-12-14 | 神州凯业(佛山)科技有限公司 | Multi-person ball firing recognition system |
| CN216592971U (en) * | 2022-01-20 | 2022-05-24 | 中国人民武装警察部队警官学院 | Shooting training bullet counting device and system |
| CN115127400A (en) * | 2022-07-22 | 2022-09-30 | 厦门恒兴兴业机械有限公司 | System and method for controlling target scoring generation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790630A (en) * | 2021-10-17 | 2021-12-14 | 神州凯业(佛山)科技有限公司 | Multi-person ball firing recognition system |
| CN216592971U (en) * | 2022-01-20 | 2022-05-24 | 中国人民武装警察部队警官学院 | Shooting training bullet counting device and system |
| CN115127400A (en) * | 2022-07-22 | 2022-09-30 | 厦门恒兴兴业机械有限公司 | System and method for controlling target scoring generation |
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