Study On High-speed Synchronous Camera Control System Based On TMS320F2812

Theodolite is an optical instrument widely used to measure angles at proving ground these days. It records images of the moving object on films and corresponding data as the results of surveying with high-speed synchronous camera in real time and afterwards analysis the results of surveying to get the trajectory and flight characteristic of the moving object. With the development of new weapon equipment, better metrical instrument using at the proving ground is needed. So depending on the demand of the full-digital theodolite technique, a new high-speed synchronous camera control system based on DSP (Digital Signal Processor) was studied on in this dissertation.According to the technical parameters of the high-speed synchronous camera, firstly the simulation mathematical model of the camera control system, which has been constantly modified during our engineering design, was built. Then high fidelity simulations had been acted to develop and test all parameters and algorithms of the control system. Finally the design scheme of the camera control system was put forward. In order to meet the demand of high control precision, fast real time and high reliability, some measures, such as improving on the feedback unit and the power drive circuit, adopting advanced DSP chip TMS320F2812.A typical camera control system designing was discussed in detail. And a dual closed loop phase and speed control structure based TMS320F2812 DSP was accomplished to achieve the phase and frequency synchronization. The experimental results show that the control system measures up with the technical parameters. It verifies that this design is a correct and valuable one.