1、 基于基于 PLC 温室温度检测与控制系统的设计温室温度检测与控制系统的设计 作 者 XXX 指导教师 XXX 摘要摘要：温度检测和控制对人类日常生活、工业生产、气象预报、物资仓储等都起着极其重要的作用。在 许多场合，及时准确获得目标的温度信息是十分重要的，近年来，温度测控领域发展迅速，并且随着数 字技术的发展，温度的测控芯片也相应的登上历史的舞台，能够在工业、农业等各领域中广泛使用。 本系统是通过温度传感器采集温度数据，利用温度测量与温度控制相关理论知识设计的 PLC 温控系 统。运用 PLC 设计温室温度测控系统，从自动化运行的角度出发，分析讨论其产生故障的可能原因。同 时从实际硬件电路出
2、发，分析电路的工作原理，根据设计具体情况提出修改方案和解决办法。我所使用 的温度传感器是 XP-TP-A-V010-D，它具有体积小，精度高和功耗低等特点。温度传感器采集到的温度数 据是模拟信号，因此在系统中，我将 PLC 增加了一个模拟量扩展模块 EM235,采集到的温度信号便能通过 该模块直接输入到 PLC 中，PLC 则对数据进行分析、处理，并通过执行部件对温度进行控制，这种自动 化、智能化的处理方式在温室温度检控系统中将有着无限的应用和发展空间。 关键字关键字：PLC，温度传感器，检测,控制 Design of detection and control system of green
3、house temperature based on PLC Abstract: Temperature measurement and control plays an extremely important role in human daily life, including industrial production, weather forecast, material storage, etc In many cases, it is very important to acquire the timely and accurate information of the tempe
4、rature of the targets. Recently, along with the development of digital technology, the rapid development of temperature measurement and control has been widely used in various industrial agricultural fields, meanwhile, the chips of measurement and control the temperature have been on the historical
5、stage. This system, by collecting temperature data through the temperature sensor, with the application of PLC control system based on the theoretical knowledge about temperature measurement and control, intends to analyze the potential causes of the breakdowns in their automatic operation. At the s
6、ame time, starting from the circuits of actual hardware, and via analyzing operating principles of these electric circuits, this system is aiming at putting forward the revising proposasl and solutions according to the specific situations. The temperature sensor used by the author is XP-TP-A-V010-D, which is distinguished with small size, high precision and low power consumption. The temperature data collected by the temperature sensor is an analog signal. Therefore, in the system, an analo
