The Design of Automatic Control Temperature System for Greenhouse

2014 ◽  
Vol 1006-1007 ◽  
pp. 662-665
Author(s):  
Yu Fan ◽  
Xue Feng Wu
Keyword(s):  
Temperature Sensor ◽  
Temperature Data ◽  
Digital Display ◽  
Single Chip ◽  
Single Chip Microcomputer ◽  
Key Technology ◽  
Modern Agriculture ◽  
Temperature Environment ◽  
Growth Habits ◽  
And Control

In modern agriculture, greenhouse environment implementation of automatic detection and control is necessary. The key technology of greenhouse facilities is the temperature control. The microcontroller is core processor and the temperature sensor is used to collect temperature data, and transmitting the data to the single chip microcomputer, the data collected will be sent to the digital display, so that operator could observe the current temperature. It can adjust the temperature environment inside the greenhouse in the system and flexible to meet the plant growth habits.

Design and Realization of a New Kind of Temperature Monitoring System

2014 ◽  
Vol 687-691 ◽  
pp. 852-855
Author(s):  
Dong Xing Wang
Keyword(s):  
Internet Of Things ◽  
Monitoring System ◽  
Temperature Sensor ◽  
Temperature Data ◽  
Temperature Monitoring ◽  
Single Chip ◽  
Single Chip Microcomputer ◽  
Alarm Signal ◽  
Oil Pump ◽  
Relevant Work

By using the single-chip microcomputer AT89C52 and the DS18B20 temperature sensor, this paper designed and realized an oil pump temperature monitoring system based on Internet of things. By installing the DS18b20 sensors in front of and behind the oil pump motor bearings; this monitoring system can collect the real-time temperature data of the oil pump bearing. The changed temperature data can be uploaded to the computer or the hand-held terminals by the transmission module when the temperature of the pump bearing changes. Especially, when the temperature is more than the alarm value preset by the system, the system can automatically send alarm signal, such as ring tones and screen flashing, and start the alarm module to warn the staffs to do the relevant work timely.

Design of Intelligent Living Room Environment’s Control System with Intelligent Materials

2013 ◽  
Vol 644 ◽  
pp. 3-7 ◽  
Author(s):  
Jun Yu ◽  
Yu Wen Zhai ◽  
Xiao Hong Li
Keyword(s):  
Control System ◽  
Comfort Level ◽  
Living Room ◽  
Intensity Level ◽  
Single Chip ◽  
Single Chip Microcomputer ◽  
Measurement And Control System ◽  
And Control ◽  
Environment Parameters ◽  
Measurement And Control

The measurement and control system of an intelligent living room environment is introduced in this paper, which takes single-chip microcomputer STC89C52 as the core chip. The system uses the intelligent digital temperature and humidity materials SHT11 and light sensitive resistor to realize the detections of living room temperature, relative humidity and light intensity level with automatic control, in order to improve the living room comfort level. It's function reliable, simply constructed, and can achieve the automatic adjustment of living room environment parameters.

Adaptive Control Research and Design Based on STC Single-Chip Microcomputer

2012 ◽  
Vol 516-517 ◽  
pp. 1678-1682
Author(s):  
Qiang Xu ◽  
Qian Zhang ◽  
Kai Chun Ren ◽  
Xing Qi Zhang ◽  
Shi Gang Li
Keyword(s):  
Software Design ◽  
Lighting System ◽  
Single Chip ◽  
Single Chip Microcomputer ◽  
Control Module ◽  
Control Research ◽  
Data Acquisition Module ◽  
And Control ◽  
Led Lights ◽  
Research And Design

This paper analyses the characteristics and the glowing use value of LED lights, using STC series microcontroller design a system of LED which can automatically adjust the light according to the environment changes. The control system consists by the data acquisition module and control module and circuit driver module. This paper gives the control circuit hardware and software design. This system has many advantages such as energy conservation and environmental protection and longevity when compared with the conventional lighting system.

Exploration of Humidity Data Acquisition System Based on Single Chip Microcomputer

2013 ◽  
Vol 753-755 ◽  
pp. 2494-2497
Author(s):  
Jun Xia Zhang ◽  
Bing Wang ◽  
Ya Ning Song
Keyword(s):  
Data Acquisition ◽  
Humidity Sensor ◽  
Data Acquisition System ◽  
Acquisition System ◽  
Price Ratio ◽  
Digital Display ◽  
Single Chip ◽  
Single Chip Microcomputer ◽  
Environmental Humidity ◽  
Humidity Monitoring

Exploring a kind of the humidity data acquisition system with higher performance-price ratio is vital to the environmental monitoring. At the present work, a novel of the humidity data acquisition system has been developed so as to collect and store the environmental humidity data. It consists of humidity sensor of DHT11£¬LED digital display and single chip microcomputer (SCM) of AT89S52. AT89S52 was used as the control chip which assembled with humidity sensor of DHT11 and digital display. Moreover, the behavior of humidity data acquisition was simulated with the software of Proteus; the results show that this designed system can collect the humidity data at bigger range. Therefore, the designed humidity acquisition system effectively achieves humidity monitoring, and has advantages of smaller volume, higher performance-price ratio, and portable.

N-C Lathe Cutting Force Measurement Research

2013 ◽  
Vol 457-458 ◽  
pp. 608-611
Author(s):  
Ming Xi Shao ◽  
Xiu Mei Zhang
Keyword(s):  
Cutting Force ◽  
Force Measurement ◽  
System Structure ◽  
Scale Transformation ◽  
Single Chip ◽  
Single Chip Microcomputer ◽  
Cutting Force Measurement ◽  
Cnc Lathe ◽  
And Control ◽  
Measurement And Control

through the use of single-chip microcomputer measurement CNC lathe cutting force, this paper focuses on the single chip microcomputer to implement continuous automatic sampling, A/D conversion, scale transformation and data processing methods. Introduces the principle of the measurement and control system, structure and data acquisition part of the program.

Research on Micromotor Dynamometer in Surgical Power Plant

2013 ◽  
Vol 303-306 ◽  
pp. 1748-1751
Author(s):  
Zhi Qiang Zhao ◽  
Cheng Liao
Keyword(s):  
Power Plant ◽  
Output Power ◽  
Data Gathering ◽  
Motor Speed ◽  
Single Chip ◽  
Single Chip Microcomputer ◽  
Brushless Motor ◽  
Driver Circuit ◽  
Electronic Load ◽  
And Control

Micro-motor is the core component of surgical power plant, this paper research a new method of measuring micro-motor speed and output power. This system takes WTK-10 Groove-type photoelectric sensor and 6 gap speed code disc to measure micro-motor speed, uses TQ661 torque sensor to measure output torque of micro-motor, takes electronic load loading circuit, torque-speed measuring circuit, brushless motor driver circuit and control circuit of single chip microcomputer to realize the detection of micro-motor speed and output power, and to display results on PC. This system has the functions of data gathering, data processing, displaying and alarm etc, is accurate, economical and practical etc.

Development of DSD from SCM to PC

2013 ◽  
Vol 475-476 ◽  
pp. 243-246
Author(s):  
Fu Ling Li ◽  
Xiu Ling He ◽  
Yong Li
Keyword(s):  
Data Storage ◽  
Storage Device ◽  
Single Chip ◽  
Single Chip Microcomputer ◽  
Cmos Chip ◽  
And Control

A kind of device for data storage is realized in this article. The data storage device (DSD) has USB and I2C port. By it we can transmit data from terminal for measure and control that base on SCM (single-chip microcomputer) to PC easily. DSD use EEPROM CMOS chip AT24C512 for storing data, and use USB chip CH341 for transmitting data to PC. This article showed AT24C512, CH341 and the characteristic of I2C BUS. The hardware for taking data and software for communicating between terminal and PC were designed in this article.

Design of Demisting System in Vehicle Dome Based on Fuzzy Control Algorithm

2014 ◽  
Vol 635-637 ◽  
pp. 1438-1442
Author(s):  
Peng Han ◽  
Xu Ying Wang
Keyword(s):  
Fuzzy Control ◽  
Temperature Sensor ◽  
Control Algorithm ◽  
Humidity Sensor ◽  
Dew Point ◽  
Single Chip ◽  
Single Chip Microcomputer ◽  
Point Temperature ◽  
Dew Point Temperature ◽  
Fuzzy Control Algorithm

This paper describes one demisting system in vehicle camera. On the basis of fuzzy control algorithm, temperature sensor and humidity sensor were used to sample the temperature and humidity inside the dome's cover, single-chip microcomputer was used to get the dew point temperature and window glass's actual temperature through calculation and adjust the heating power consumption automatically. With these processes, the target of intelligent demisting system finally was achieved. This design is practical in vehicle domes.

A Temperature Detecting System Based on DS18B20

2011 ◽  
Vol 328-330 ◽  
pp. 1806-1809 ◽  
Author(s):  
Yan Xiang Wu ◽  
Dan Liu ◽  
Xing Hong Kuang
Keyword(s):  
Liquid Crystal Display ◽  
Temperature Data ◽  
Environment Monitoring ◽  
Main Program ◽  
Single Chip ◽  
Single Chip Microcomputer ◽  
Digital Thermometer ◽  
Serial Interface ◽  
Whole Process ◽  
Operating Process

To overcome the defects of traditional temperature detecting devices, this paper introduces a temperature detecting system based on 1-wire digital thermometer DS18B20. It consists of programmable resolution 1-wire digital thermometer DS18B20, single chip microcomputer (SCM) AT89C51, and the peripheral circuits. The temperature data can be displayed on a liquid crystal display and simultaneously transmitted to a personal computer (PC) via serial interface for remote monitoring after it is detected by sensors. The operating process of DS18B20 and the connection between AT89C51 and PC are introduced in detail. We also provide the main program flowchart and the flowchart of accessing DS18B20 in this paper. The simulation of the whole process is successfully implemented with software PROTEUS. This system can be widely applied in environment monitoring and process control.

scholarly journals DESIGN AND RESEARCH OF AUTOMATIC ALIGNMENT TEST DEVICE OF SEMI-FEEDING PEANUT COMBINE HARVESTER

2019 ◽  
Vol 57 (1) ◽  
pp. 71-80
Author(s):  
X.L. Lv ◽  
Z.L. Hu ◽  
S.Y. Wang ◽  
Z.Y. Yu ◽  
◽  
...  
Keyword(s):  
Forward Speed ◽  
Single Chip ◽  
Single Chip Microcomputer ◽  
Test Device ◽  
Detection Mechanism ◽  
Hydraulic Flow ◽  
Alignment System ◽  
Automatic Alignment ◽  
Combine Harvester ◽  
And Control

For the caused harvesting loss problem by inaccurate alignment of the semi-feeding peanut harvester, an automatic alignment system on the control core of the single chip microcomputer μPD78F0525 was designed. The system adopts a four-bar detection mechanism to transmit the offset to the controller through the sensor and to adjust the excavator in time. On this basis, a peanut automatic alignment test device is developed, which is composed of conveying platform, ridge ditch, hydraulic execution system, signal detection mechanism, signal processing and control system, etc. The influence effect of the main factors of the system is tested through the test bench. The results show: the reaction time increases with the increase of spring preload and deviation distance, gradually decreases and tends to remain unchanged with the increase of forward speed, and first decreases and then increases with the increase of hydraulic flow. The unqualified rate first decreases and then increases with the increase of spring preload, gradually increases with the increase of forward speed and deviation distance, and gradually decreases with the increase of hydraulic flow. The effectiveness and stability of the automatic alignment system can meet the operation requirements. It effectively solved the problem of automatic alignment of the semi-feeding peanut harvester and provided a technical reference for the research and development of the automatic alignment system for harvesting the fruits under the soil.

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