R911317263 MSK061C-0300-NN-M1-UG0-NNNN模块现货

R911317263 MSK061C-0300-NN-M1-UG0-NNNN

Temperature Control System of Cold Storage 
Ting Lu 1 and Zeliang Liu 2 
School of Electronic Engineering, Jiujiang University, Jiujiang, Jiangxi, China 
1
luting524@163.com, 2aptblaze@163.com 
Keywords: IOT; Sensor; Temperature detection
Abstract. This design is a temperature detection and automatic control system based on STC89S52 
micro controller for the cold storage. Mainly consists of a power supply, a temperature detection 
circuit, a system control circuit , actuator, the temperature display circuit, alarm circuit and other 
parts, using DS18B20 temperature sensor detects the current temperature of cold storage through the 
STC89S52 controller and auxiliary circuit to calculate the output, and the LCD display the 
temperature value; if the measurement value is upper or lower limit value, the system will alarm, and 
at the same time to start or stop the actuator, making the temperature quickly reached the preset range. 
Introduction 
Cold storage is using cooling facilities to create the proper humidity and temperature conditions of 
warehouse, also known as cold storage, processing and storage of agricultural and livestock products. 
It can get rid of the influence of climate, prolong the period of storage preservation of agricultural and 
livestock products, in order to regulate market supply. At present, if you want to speed up the 
refrigerator industry to safe, normative, environmental protection, energy saving, convenient 
operation, simple structure of the direction of development, we must to improve the automatic 
management level of the cold storage and management to be further strengthened, and the operation 
cost is greatly cut down. This paper design temperature control system is a simple operation, and is 
low-cost, easy to run. This system is DS18B20 digital sensor to detect temperature, STC89S52 
microcontroller to control the cold storage temperature, with temperature, alarm and control 
temperature and other functions. 
Determination of the programme 
For cold storage temperature control system, and the following three schemes: 1. Selection of FPGA 
programmable logic device, by using FPGA device can greatly shorten the design time of the system 
and make the products to market faster, and then to enhance the competition ability of the product. 2 
PLC programmable logic device, the PLC as the control system, it is characterized by the processing 
of the signal time is short, the progress is fast, and timely. All the I/O input and output signal are 
selected photoelectric isolation, with good self identification function. 3 STC STC89S52 
microcontroller, which is characterized by low power consumption, high performance, the price is 
cheaper, and and the traditional 8051 microcontroller are compatible. Using this design scheme, 
considering the practicality and price, the chips and devices are common components, the cheap price 
for the whole system construction, and the prospect of this system is good. 
This design to STC89S52 SCM as the mastermind, DS18B20 temperature sensor range - 50 DEG 
to 120 DEG C, the measured temperature is sent to STC89S52 SCM, the MCU, the temperature in the 
display circuit is displayed in real time, the system recovery is 1602 LCD module display. This 
system can not only display the temperature can also be used to a specific temperature value is set out, 
to measure the temperature real-time monitoring and control, when the temperature is higher than the 
set temperature, it will immediately make corresponding temperature equipment work rapidly adjust 
the cold storage temperature, so as to achieve the constant temperature state, then the control system 
is stable operation, the control automation. 
International Conference on Electromechanical Control Technology and Transportation (ICECTT 2015) © 2015. The authors - Published by Atlantis Press

R911317263 MSK061C-0300-NN-M1-UG0-NNNN

R911317263 MSK061C-0300-NN-M1-UG0-NNNN

冷库温度控制系统
丁路1号和刘泽良2号
九江大学电子工程学院，江西九江
1.
luting524@163.com, 2aptblaze@163.com 
关键词：物联网；传感器温度检测
摘要本设计是基于STC89S52的温度检测与自动控制系统
用于冷库的微控制器。主要包括电源、温度检测
电路、系统控制电路、执行器、温度显示电路、报警电路等
零件，使用DS18B20温度传感器通过
STC89S52控制器和辅助电路计算输出，LCD显示
温度值；如果测量值为上限值或下限值，系统将报警，并且
同时启动或停止执行机构，使温度迅速达到预设范围。
介绍
冷库是利用冷却设施来创造适当的湿度和温度条件
仓库，又称冷库，用于农牧产品的加工和储存。
它可以消除气候的影响，延长农产品的贮藏保鲜期
牲畜产品，以调节市场供应。目前，如果您想加快
冰箱行业要安全、规范、环保、节能、方便
操作、结构简单的发展方向，必须提高自动化
冷库管理水平和管理有待进一步加强，运行
成本大大降低。本文设计的温度控制系统操作简单，是
成本低，易于运行。本系统采用DS18B20数字传感器检测温度，STC89S52
微控制器控制冷库温度，具有温度、报警和控制功能
温度和其他功能。
方案的确定
对于冷库温度控制系统，有以下三种方案：1.FPGA的选择
可编程逻辑器件，通过使用FPGA器件可以大大缩短系统的设计时间
并使产品更快地进入市场，进而提高产品的竞争力。2.
PLC可编程逻辑器件，以PLC为控制系统，其特点是处理
信号时间短，进度快，及时。所有I/O输入和输出信号为：
选用光电隔离，具有良好的自识别功能。3 STC STC89S52
微控制器，其特点是低功耗、高性能、价格低廉
并且与传统的8051微控制器兼容。使用该设计方案，
考虑到实用性和价格，芯片和设备是通用组件，价格便宜
对于整个系统的建设，该系统具有良好的应用前景。
本设计以STC89S52单片机为主脑，DS18B20温度传感器范围-50度
到120摄氏度时，测量的温度被发送到STC89S52单片机，MCU中的温度
显示电路实时显示，系统恢复为1602 LCD模块显示。这
系统不仅可以显示温度，还可以用于设定特定的温度值，
测量温度实时监控，当温度高于
设定温度后，会立即使相应的温度设备工作迅速调整
冷库温度，以达到恒温状态，然后控制系统
运行稳定，控制自动化。
机电控制技术和运输国际会议（ICECTT 2015）©2015。作者-亚特兰蒂斯出版社出版