Based on Single Chip Microcomputer Heating Temperature Automatic Control System

2012 ◽  
Vol 591-593 ◽  
pp. 1664-1668
Author(s):  
De Yong Liu ◽  
Hong Song ◽  
Zhi Qiang Kong

The temperature control is one of the most common control system,with the development of the sensing technology, new single-bus digital temperature sensor to achieve faster development of the test and control of the temperature. The system is a temperature sensor AD590 to acquisition analog signals, after ADC0809 converted into digital signals to 89C51 single chip processing, so as to achieve the collection of temperature, and then through the CD4511 drive seven sections LED display. The system can control of temperature, through the keyboard for temperature of add or subtract Settings, if detection temperature is more than set temperature, stop heating, if detection temperature is below the set temperature, start heating. The system of design and wiring are simple,easy extension, cost-effective, volume is small, compact structure,strong anti-interference ability.

2010 ◽  
Vol 29-32 ◽  
pp. 349-353
Author(s):  
Jing Tang ◽  
En Xing Zheng

The paper designs a temperature control system based on AT89C51 and DS18B20. The design uses the DS18B20 digital temperature sensor as the temperature acquisition unit and the AT89C51 microcontroller unit to control them, not only have the advantages that easy to control and with good flexibility, but also can greatly enhance the controlled temperature index.


2013 ◽  
Vol 448-453 ◽  
pp. 1312-1315
Author(s):  
Qun Li

Energy-saving and environmental protection has become the theme of the 21st century. Greenhouse is an energy-intensive industries. Every year, 35% of energy consumption on agricultural production is used for greenhouse heating in the world, which accounts for 15-40% of the cost of greenhouse production. For improving energy efficiency and protecting the environment, the reasonable control of greenhouse environmental parameters is significant. The design of solar greenhouse real-time environment monitoring and automatic control system is based on 8051 single-chip in the thesis. The temperature and humidity signal are obtained from DS18B20 digital temperature sensor and IH3605 humidity sensor. When the greenhouse temperature exceeds the set temperature, the device can be started by perform timely processing, then the user can read LED digital display temperature and humidity values.


2014 ◽  
Vol 595 ◽  
pp. 232-236
Author(s):  
Guo Jun Xu ◽  
Jing Zhang ◽  
Zhao Yang Yang ◽  
Ti Yin Li

The principle and the realization method of the temperature measuring system which based on the temperature data acquisition chip-DS18B20 and the serial communication chip MAX1480B were introduced. Hardware principle diagram, software flow chart and main subprogram are also given. The dependability of the system was strengthened by using visualization technology and ionic smoke sensing technology.


2014 ◽  
Vol 599-601 ◽  
pp. 1111-1114 ◽  
Author(s):  
Xiao Yan Wang ◽  
Zhi Wen Zhou ◽  
Tao Wu

A vegetable greenhouse temperature detection and control system is described in this paper. The system is based STC89C52 microcontroller, using DS18B20 temperature sensor to detect real-time temperature, and using fuzzy control algorithm to control greenhouse temperature. Experimental results show that the system is cost-effective, long life and high degree of intelligence, has some practical value.


2012 ◽  
Vol 214 ◽  
pp. 644-648
Author(s):  
Wen Mian Shao ◽  
Hai Tao Li ◽  
Li Hong Jin

Aim to the current shortcomings manual control system of greenhouse flowers and plants, designed of the temperature and humidity control system, introduced the system, working principle and structure in detail to the composition of the various parts of hardware and software components of the processes, PLC as the core of the system, chosen DS18B20 single-wire digital temperature sensor, IH3605 humidity sensors, digital to analog converter, digital display, auxiliary equipment, implemented the automatic control of the flower greenhouse temperature and humidity, had characteristic such as simple structure, high reliability, cost-effective, good temperature, to promote the value of a wide range and so on


2012 ◽  
Vol 462 ◽  
pp. 753-756
Author(s):  
Zhi Yong Zhang ◽  
Tie Liang Guo

The features and working principle of single-wire digital temperature sensor DS18B20 are introduced. Through applying single chip microcontroller AT89C51, the water bath temperature control system is designed based on DS18B20. The paper also gives the structure of the hardware device, main design of software and the C51 program of DS18B20. In the end, the experimental result shows that the DS18B20 system has a higher accuracy.


2013 ◽  
Vol 694-697 ◽  
pp. 1475-1478
Author(s):  
Xing Jian Jia

A new type of intelligent hanger was designed. Wings structure of hanger mechanical part was adopted,screw rod and motor combination of the lifting mechanism can make the wings outspread and fold, unique cover curtain structure was adopted. Cover curtain roll up and down through the motor driving.The control system adopts AT89C51 single-chip microcomputer. According to the information that coming from the rain sensor and the temperature sensor, two stepper motor’s positive and negative rotational motion was controlled.So as to realize automatic adjustment when it rains. The hanger will be automatically closed when the temperature is higher than expectation, and the hanger will be automatically opened when the temperature is less than expectation.The hanger has been produced and has a good performance.


2013 ◽  
Vol 7 (1) ◽  
pp. 131-137
Author(s):  
Xingjian Jia ◽  
Changbao Chu

A new type of intelligent hanger was designed based on single chip and Pro-E software. 3D entity model of actuator and cover curtain mechanism are established by Pro-E. Wings structure of hanger mechanical part was adopted screw rod and motor combination of the lifting mechanism can make the wings outspread and fold, unique cover curtain structure was adopted. Cover curtain rolls up and down through the motor driving. The control system adopts AT89C52 single chip. According to the information that coming from the rain sensor and the temperature sensor, two stepper motor’s positive and negative rotational motion was controlled. So as to realize automatic adjustment when it rains. The hanger will be automatically closed when the temperature is higher than expected, and the hanger will be automatically opened when the temperature is less than expected. The hanger that has been produced has a good performance.


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