单总线技术在地电场多电极数据采集系统中的应用

来源期刊：中南大学学报(自然科学版)2004年第3期

论文作者：白宜诚 杨学顺 肖建平 陈儒军 罗维斌

文章页码：457 - 462

关键词：单总线;可寻址开关;通信协议;多电极智能转换;高密度电法

Key words：1-wire; addressable switch; communication protocol; multi-electrode intelligent change; high density electrical survey

摘    要：针对传统高密度电法仪的电极系需用与电极总数相等的多根导线与主机相连的局限,提出了一种单总线技术,用7~10芯电缆即可控制几百根导线的智能电极控制系统,设计了数据采集系统的发送、接收和智能电极等各部分的硬件结构,并应用于地电场数据采集系统中;此外,以偶极-偶极为例给出了智能电极自动转换的软件控制算法;对整个系统进行电阻网络物理模拟测试及误差分析,并对该系统进行水槽试验。研究结果表明:该系统解决了各部分之间的硬件接口技术;所采集的数据质量可靠,真实地反映了被测目标电场信息,达到了野外数据采集精度要求。

Abstract: To resolve the incommodity that the number of wires connected to host computer must be equal to the total amount of electrode in the traditional high density instrument , the intelligent electrode control system based on the 1-wire technology is established by using a cable containing 7~10 wires to connect hundreds of electrodes. The hardwares of transmitter and receiver and intelligent electrode are designed, and the hardware interface technology is. Then dipole-dipole as an example of the software control arithmetic for electrode automatic change is devised . At last the resistance net model test for the whole system and the error analysis are carried out . By the physical analogy in the flume , the results show that the dependable data is reliable,which can reflect the information of geoelectrial field for the object meet the requirement of accuracy for data acquisition in the field.