基于PXI总线的星载单机地面检测通用接口卡设计

Design of Universal Interface Card of Ground Test Equipment for Satellite Payload Based on PXI Bus

为了解决卫星载荷地面检测设备研制过程中遇到的研制成本高、研制周期长、维护更新困难等问题,分析和总结了卫星载荷地面检测设备常用功能,提出了在一块PXI板卡上集成OC指令接口、RS422通信接口、电机脉冲接口、AD遥测接口等多种接口的解决措施,并进行了相应的软硬件及通用性方面的设计研究,达到了提高设备的便携性和集成度、控制成本、缩短研制周期、提高研制效率以及增加通用性和可配置性的目的,具有很强的航天工程实用意义。

In order to solve the problems of high cost,long period and difficult updating in the development of satellite payload ground test equipment,the common functions of ground test equipment for satellite payload are analyzed and summarized,and then a solution,which integrates multiple interfaces such as OC instruction interface,RS422 communication interface,motor pulse interface and AD telemetry interface on a PXI board card,is put forward.The design and research of the corresponding software,hardware and the universality has been carried out,and the purpose of improving the portability and integration of the equipment,controlling the cost,shortening the development period,improving the development efficiency and increasing the generality and configurability has been achieved,which indicates that the designed card has a strong practical significance in aerospace engineering.