高冲击环境数采存储系统设计

Design of data acquisition and storage system in the high shock state

摘要:

介绍了数据采集存储系统硬件组成与技术指标、高冲击条件下电路设计方法及元器件选择原则、并行高速多通道数据采集与数据存储、数据预采集技术、系统动态参数设置等关键技术，利用甚高速集成电路硬件描述语言(VHDL)和QuartusⅡ9.0软件完成了系统原理设计和软件仿真，并设计了系统原理样机。仿真实验证明设计的系统实现了16通道100 kHz~500 kHz的数据采集和存储，能完成失重触发和指定通道阈值触发，系统运行稳定可靠。

Abstract:

The hardware architecture of data acquisition and storage, the method of circuit design and the principle of components option under high shock environment, parallel multi-channel high velocity data acquisition and data storage，data acquisition in advance, and dynamic setting of parameters are introduced in this paper. The system is modularly designed by using Very-high-speed integrated circuit Hardware Description Language(VHDL) and QuartusⅡ9.0 software, and the prototype is designed as well. The simulation results indicate that the proposed system can realize 16 channels data acquisition and storage with 100 kHz-500 kHz sampling frequencies, and it is controlled by the traixial acceleration sensor and the threshold trigger based appointed channel. Its stability and reliability are verified.