高精度跟踪式水位测量仪的设计与实现  

Design and Implementation of the High-precision Tracking Mode Water Level Measuring Instrument

作　　者：张颖江[1] 崔成法[1] 

机构地区：[1]湖北工业大学,武汉430068

出　　处：《计算机工程与应用》2006年第5期101-103,共3页Computer Engineering and Applications

基　　金：世行贷款资助项目(编号:CTC2003-15)

摘　　要：介绍了高精度跟踪式水位测量仪的工作原理、组成结构及设计实现。该测量仪采用Modbus通信协议,通过RS-485串行总线,可以单独或连网对各测量点的水位进行快速、实时的精确测量。分布在各测量点的水位测量仪(下位机)与PC机(上位机)组成非平衡主从式结构系统,上位机可以实现对多达140台下位机进行实时监控和数据信息的收集,系统最大通信距离可达1200m。This paper introduces the principle and architecture of the high-precision tracking mode water level measuring instrument,and mainly focus on the design and implementation methods.The design adopts RS-485 serial bus based on the Modbus communication protocol.It can work alone or within a network to perform fast traceable,precise, and real-time measurement for water level of each measured locations.The water level measuring instruments（slaves） distributed in different locations and host organize the non-equilibrium host-slave system mode.In the system,host can monitor more than 140 slaves in real time and gather data information.The largest communicating distance that the instrument can reach is 1,200 meters.

关 键 词：高精度跟踪式水位测量仪 微控制器 MODBUS通信协议 串口通信 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] TP39[自动化与计算机技术—控制科学与工程]