毕业设计（论文）-基于无线通信的液位远程监控系统设计_精品.doc

本科学生毕业设计 . 院部名称： 专业班级： 学生姓名： 指导教师： 职 称： 黑 龙 江 工 程 学 院 二○一二年六月 The Graduation Design for Bachelors Degree Design of Liquid Level Based on Wireless Remote Monitoring Candidate：Specialty：Measurement Control Technology and Instrumentation Class：Supervisor：.Li Jing Heilongjiang Institute of Technology 2012-06·Harbin  摘要 在工业过程控制系统中液位对象是一种十分普遍的对象，对液位对象的监测与控制是系统实现其功能必不可少的环节。液位的高低直接影响着工业过程控制的安全性，如果超出范围，很可能会酿成危险的后果。在过去，液位的监控装置多数是使用单片机实现点对点控制和显示，工作人员必须到工业现场操作这些仪器，且单片机功能十分有限，只能完成一些相对简单的操作。随着无线通信技术的发展，无线通信技术在工业控制领域的应用日趋广泛，基于无线通信的远程监控系统实现远程监测、控制和管理的有效集成，能及时了解现场信息，快速进行决策，并省去了很多人力。 本系统设计了一个基于无线通信的液位远程监控系统，将无线通信技术与液位测量相结合，实现远程监控系统的设计。选用压力传感器对液位进行测量，采用AT89S52单片机作为中央处理单元，对液位信号进行采集、数据处理、显示、报警等工作。 本设计的远程液位监控系统可以检测到被测液体的实时液位，当达到预先设定的上限报警设定值时，发出声音报警和控制信号，以提示操作人员采取安全对策或自动控制相关安全装置。该报警器可以实时、准确检测液体液位，并且可以长时间可靠无误的报警，具有很广泛的应用前景。 报警器；；单片机；传感器 ABSTRACT In industrial process control system level objects is a very common objects, monitoring and control of the level object is a system to achieve an essential part of its function. Of high and low level directly affect the security of industrial process control, if you are out of range, is likely to lead to dangerous consequences. In the past, mostly liquid level monitoring device using single-chip could transmit point to point of control and display, staff must be to the industrial operation of these instruments, and MCU function is very limited, only relatively simple operation is complete. With the development of wireless communication technologies, wireless communication increasing use of technology in the field of industrial control, remote monitoring and control system based on wireless communication for remote monitoring, control and management of effective integration, informed the scene information, make decisions quickly, and save a lot of manpower. System design of a remote liquid level monitoring system based on wireless communication, wireless communication technology in c