全自动智能陀螺寻北仪中待测光标信号采集模块的设计

Design of Cursor Signal Acquisition Module in All Automated Intelligent Gyroscope North Finder

介绍了全自动智能陀螺寻北仪的硬件系统原理图.基于CPLD技术设计的电路驱动CCD图像传感器,通过待测光标信号采集模块,实现陀螺仪光标信号的高精度自动采集.实验表明该模块能有效的代替人眼对光标进行识别,可以减少测量结果对操作人员素质的依赖,使寻北仪的寻北精度从原来的30″提高到5″,为仪器寻北全自动化和智能化奠定了基础.

Schematic hardware system diagram of all automatic intelligent gyroscope north finder is presented. For the realization of high precise automated acquisition of gyroscope＇s cursor signal, photoelectric sensor CCD is selected. Based on the characteristic of the CCD, the CCD＇ s driver circuit has been designed, and the module of cursor signal acquisition has been designed ultimately. It has been proved through experiment that the module can substitute human eyes to recognize the cursor signal effectively. The precision of the north finder is improved from 30＂to 5＂. The base on which the north-finder will be all automatic and intelligent is established.