The Design And Realization Of An Automatic Target-scoring System Of The Armored Vehicles’ Ball Firing Practice

Live ball firing practice is an important means to test and improve the actual combat capability of the armored forces. The shooting results being measured timely and accurately is a key factor affecting the training effect. Traditional manual-based target scoring method exists some serious problems, for example:poor accuracy> low efficiencyn low rates of participating in training and hidden danger. In view of the above deficiencies, this thesis designs a new real-time automatic target-scoring system basing on shock-wave principle.The basic working principle of the shock wave target-scoring system is as follows: Shock-wave is produced when the projectile is flying at supersonic speed. Pulse signals produced by the shock-wave will be converted into electrical signals by the acoustic sensors which are under the target surface. Time differences will be produced when the shock wave reaches various acoustic sensors. The data acquisition system will deal with the electrical signal, and extract the arrival time differences. The result will be transmitted to the host computer by wireless. Positioning coordinates will be calculated by the host computer using the mathematical model established above. The final result will be displayed on the computer screen timely. The thesis gives the overall system implementation and specific realization methods of hardware and software design. The experiments of live ball firing are made to evaluate the system’s property. Through live ball firing tests and measurements, the results showed that the system is credible with high accuracy. The system which can meet the technical requirements has already been widely used in several shooting ranges.The designing characteristics of the wireless automatic target-scoring system are as follows:(l)Creatively put forward to a ’(?)’ model of acoustic sensors, which has higher positioning accuracy and smaller room so that the system can be carried and debugged easily. (2)By means of the combination of CPLD and microcomputer, the system realizes integration, with smaller room, lower Power consumption and higher reliability.(3)The system can control the appearance and occultation of the target remotely, with distance reaching3Km;(4)Due to the hybrid programming of Visual C++and MATLAB, the impact point coordinates can be calculated from the data transmitted by the serial port, using data Smallest twice Multiplication Iteration. The results will be displayed on the front panel timely.