【毕业设计论文】--单片机压力检测系统”.doc

单片机系统在工业生产中，电流、电压、温度、压力、流量、流速和开关量都是常用的主要被控参数。在工业生产的很多领域中，都需要对进行检测。采用单片机对进行不仅具有方便、简单和灵活性大等优点，而且可以大幅度提高的。因此，单片机对问题是一个工业生产中经常会遇到的控制问题。单片机是一种集CPU、RAM、ROM、I/O接口和中断系统等部分于一体的器件，只需要外加电源和晶振就可实现对数字信息的处理和控制。因此，单片机广泛用于现代工业控制中。本论文侧重介绍“单片机系统”的软件设计及相关内容。论文的主要内容包括：采样、滤波、键盘、LED显示和报警系统，单片机AT89S52的开发以及系统应用软件开发等。作为控制系统中的一个典型实验设计，单片机系统综合运用了微机原理、自动控制原理、模拟电子技术、数字控制技术、键盘显示技术等诸多方面的知识，是对所学知识的一次综合测试AT89S52； CAN总线；安全检测系统 ABSTRACT With scientific constant progress, in industrial production, electric current, voltage, temperature, pressure are mainly commonly used. especially in the underground mine industry, the accurate test of pressure is very important.To obtain pressures of the formations in well tell testing ,a downhole wireline remote telemetry method is developed by using time division frequency transmission technology in the mode.It also enables to supply power to the downhole tool on a single-core wered-armored camored cable.The coded pulse data are modulated on power signals. Then the surface processor uses double countered synchronism method to measure the pressure frequencies. Adopt Single-Chip Microcomputer is it control convenient, simple, flexibility advantage such as being heavy to have not merely to control to go on to pressure to come, and can raise by technical indicator not to accuse of pressure by a large margin, thus can big improvement quality and the quantity of products. So the control problem to the pressure of Single-Chip Microcomputer is the control problem constantly be able to encounter in the industry manufacture.This thesis introduces the design and debugging of “the pressure control system by microcomputer”. As a typical experimental design in control system, it uses much control knowledge and comprehensively tests student’s ability in control system.The content of this thesis mainly includes: introduces, filtering ware, keyboard, man-computer dialogue supported by LED indication, heat control method, the development of micro-computer MCS-51 and systemic