一种遥测数据采编器设计

摘要

A telemetering data acquisition system of missile is designed about sampling encoder. In the design, control chip is FPGA. It complete data acquisition for 2 channels of digital signals in RS422 and 48 channels of analog signals and make the signals through the data compiled in the form of frame store in the memory, and accomplish the communicationg between FPGA and host computer by the usb interface, then upload the data in the memory to the host computer, and finally use application software compiled by Visual Basic 6. 0 to process the data uploaded. Experiments show that the design has high collection precision, low power consumption, good reliability and flexibility.%针对某模型弹遥测系统数据的采集,提出了一种数据采编器的设计;该设计以FPGA为控制芯片,实现了2路RS422总线数字信号与48路模拟信号的采集,将采集的信号通过数据帧格式的形式进行编帧存储到存储器,并通过USB接口实现了与上位机的数据通信,将存储器中的数据上传给上位机,最后运用Visual Basic 6.0编写的应用软件对上传的数据进行处理;实验表明,该设计采集精度高,功耗低,具有很好的可靠性和灵活性.