摘要
针对在石英挠性加速度计性能检验与监测、退化机理等研究中,对加速度计输出信号快速准确采集的需求,设计一种高精度自主测试系统。提出了基于Zig Bee无线自组网的网络化测控方案,设计了适用于测控环境相对分散的分簇拓扑网络结构,以CC2530为核心设计了加速度计无线采集节点与智能无线控制终端,基于AD7734设计了加速度计高精度A/D转换电路。基于Z-Stack协议栈实现无线网络节点组网控制、数据传输程序设计,基于C#实现上位机终端控制台设计,针对大规模节点数据设计了一种高速数据帧结构,并采用了握手传输机制。经实际应用证明:系统采样误差低至0.049mV,可同时对40只加速度计进行长时间自主数据采集,并完成简单数据分析。系统可用于加速度计性能分析与建模研究中。
To acquire quartz flexible accelerometer output signal quickly and accurately, a high precision autonomously test system is designed. Networked measurement and control solutions based on Zig Bee wireless Ad Hoc networks is proposed. Clustering topology network architecture is designed which is suitable for measurement and control environement of relative dispersed clustering topology network structure, and accelerometer wireless acquisition node and intelligent wireless control terminal are designed based on CC 2530, high precision A/D converter circuit is designed based on AD7734. Based on Z-Stack protocol zack realize designed of wireless network nodes networking control and data transfer program, and upper PC terminal console is designed based on C#, a high-speed data frame structure is designed, aiming at large scale node datas, and handshake transmission mechanism is used. Through practical application shows that, sampling error of the system as low as 0. 049 mV, and can simultaneously and autonomously aquire datas by 40 accelerometers, achieve analysis on simple data. The system can be used for accelerometer performance analysis and modeling study.
出处
《传感器与微系统》
CSCD
北大核心
2014年第8期65-68,共4页
Transducer and Microsystem Technologies
基金
绵阳市科技计划资助项目(10J006)
关键词
加速度计
采集
Zig
BEE
无线控制
自组网
accelerometer
acquisition
Zig Bee
wireless control
Ad Hoe networks
