Design of multi-channel pill-loading data acquisition system

Abstract

In order to obtain the data of the target when the missile intersects the target, and to allow researchers to make an analysis about the target according to these data, a data acquisition system with acquisition, display and storage function was designed in this paper. An overall design plan of the Multi-channel data acquisition has been presented. The system consists of hardware part and software part. The main part of hardware is a data acquisition card, and the software part includes data acquisition card control procedures and PC software. In the data acquisition card, the chip of LPC2129 is chosen as the main controller of hardware system which is a micro-controller based on a 16/32 bit ARM7TDMI-S CPU, and a NAND Flash memory is used as a storage device of sampling data. Through serial port connections, the system could communicate with the computer to realize the data transfer and erase storage etc. The procedures comprise the data pre-processing software and the sampling data playback software. The experimental result shows that the system can work stably and effectively.