温度采集控制系统毕业论文.doc

摘 要 目前国内喷油泵试验台的量油系统仍采用传统的量筒式计量法．该测量系统存在量筒的制造误差、刻度误差和测量人员的视觉误差等，使测量系统的系统误差较大、自动化程度低、测量过程缓慢，已不能满足现代喷油泵对其测量精度的要求。将微机引入喷油泵试验台，对实现检测自动化提高检测精度和效率，增加检测功能有一定的实际意义和经济效益。结合实际情况，对原有电子控制喷油泵试验台进行改造、设计、开发，将单片机和计算机引入喷油泵试验台，设计一套监控系统，用单片机作为下位机控制试验台，用计算机作上位机，在基于Windows的操作界面下用预先编制好的监控软件控制单片机，既操作简单，对实现检测自动化、提高检测精度和效率、增加检测功能又有重要的现实意义 本文提出的温度采集控制系统以单片机（AT89C51）为核心，由控制部分、显示部分和温度测量（AD590）部分组成。该系统大部分功能通过硬件来实现，电路简单明了，系统稳定性很高。 这套温度控制系统可以方便地实现温度测量、温度显示等功能，并通过与单片机连接的键盘可以实时设定测控温度的下限，还可以连接相应的外围电路，在收到单片机发出的指令后对环境进行检测 本文首先描述系统硬件工作原理，并附以系统结构框图加以说明，着重介绍了本系统所应用的各硬件模块的功能和它的工作过程；其次，详细阐述了程序的各个模块及其实现过程。本系统的主要设计思想是以硬件为基础，软件和硬件相结合，最终实现各个模块的功能。 关键词：AT89C51、 温度采集AD590 Abstract The amount of domestic oil pump test-bed system is still USES the traditional LiangTong type measurement. The measurement system of existing manufacturing error LiangTong, calibration error and surveyors visual error, etc., so that the system error measuring system of bigger, the low automatic degree, measurement process slow, already cannot satisfy the measurement accuracy of modern fuel the requirements. Will the microcomputer introducing to the realization of pump test-bed, improves the detection inspecting automation accuracy and efficiency, increase the detection function has certain practical significance and economic benefits. Combined with the actual situation, the original electronic control pump test-bed for reform, the design, the development, will introduce single-chip microcomputer and computer pump test-bed, design a set of monitoring system, with single chip microcomputer as lower level computer control test rig, with the computer for PC, in Windows based user interface with programmed monitoring software control microcontroller, both simple operation, to realize detection automation, improving precision and efficiency, increase the detection function and have important practical significance In this paper, temperature gathering control system takes microcontroller (AT89C51) as the core, from controlling part, display