Simulating Design of Central Air Conditioning Control System in Office Buildings Based on PLC

2014 ◽  
Vol 525 ◽  
pp. 621-624
Author(s):  
Xue Jing Sun
Keyword(s):  
Control System ◽  
Software Design ◽  
Air Conditioning ◽  
Complete Control ◽  
Loop Control ◽  
Pid Algorithm ◽  
Central Air Conditioning ◽  
Programming Software ◽  
Plc Programming ◽  
Conditioning Control

In this paper, based on the Siemens S7-200 programmable controller in the central air conditioning control system, hardware and software of the central air-conditioning control system is designed. In hardware design PLC controller is used as controlling core to control temperature and humidity of the entire process. In the software design, control programming and multi-loop control of temperature, humidity PID algorithm are completed by using PLC programming software STEP7 because of its characteristics that it is easy to read and easy to achieve complete control. Lastly, Related parameter is set and the information is displayed by touching screen.

Research and Application on Central Air Conditioning Control System

2014 ◽  
Vol 602-605 ◽  
pp. 1468-1471
Author(s):  
Xue Jing Sun
Keyword(s):  
Control System ◽  
Pid Control ◽  
Air Conditioning ◽  
Control Temperature ◽  
Pid Algorithm ◽  
Input And Output ◽  
Central Air Conditioning ◽  
Set Up ◽  
Control Principle ◽  
Conditioning Control

In this paper, microcontroller is applied in the central air conditioning control system. Firstly, microcontroller controller is used as controlling core to control temperature and humidity of central air conditioning control system. Secondly, PID algorithm parameters are set up for improving traditional PID control principle. Lastly, input and output values can be set and displayed by LCD screen.

Research on Central Air Conditioning System of Intelligent Buildings

2014 ◽  
Vol 960-961 ◽  
pp. 639-642
Author(s):  
Xue Jing Sun
Keyword(s):  
Control System ◽  
Pid Control ◽  
Air Conditioning ◽  
Air Conditioning System ◽  
Pid Algorithm ◽  
Intelligent Buildings ◽  
Central Air Conditioning ◽  
Set Up ◽  
Control Principle ◽  
Conditioning Control

In this paper, microcontroller is applied in the central air conditioning control system. Firstly, microcontroller controller is used as controlling core to control temperature and humidity of central air conditioning control system. Secondly, PID algorithm parameters are set up for improving traditional PID control principle. Lastly, input and output values can be set and displayed by LCD screen.

Design of Central Air Conditioning Control System

2014 ◽  
Vol 602-605 ◽  
pp. 1472-1475
Author(s):  
Li Ming Wei ◽  
Chen Li
Keyword(s):  
Control System ◽  
Internal Control ◽  
Air Conditioning ◽  
Control Unit ◽  
Air Conditioner ◽  
Temperature And Humidity ◽  
Central Air Conditioning ◽  
External Equipment ◽  
Operation Results ◽  
Conditioning Control

In this paper, hardware and software of the central air-conditioning control system is researched by STC series of enhanced 8051 microcontroller. The STC11F 08XE is the main control of the hardware part. Temperature and humidity sensor regulating valve and all kinds of motor are used as external equipment to complete the temperature and humidity of building the internal control of central air conditioner. In terms of software, the program is described by protel99SE software. Microcontroller program is compiled by Microcontroller development tools keil u and STC-ISP. The temperature and humidity control and optimization of central air conditioning are completed by PID parameters. Infrared control unit is operated and liquid crystal is displayed to show the operation results.

Automatic Navigation of Intelligent Vehicle Control System Based on Laser Sensor

2014 ◽  
Vol 1049-1050 ◽  
pp. 661-664
Author(s):  
Yong Qi Han ◽  
Yi Liu ◽  
Nan Lin
Keyword(s):  
Control System ◽  
Movement Speed ◽  
Laser Sensor ◽  
Complete Control ◽  
Loop Control ◽  
Feature Extraction Method ◽  
Pid Algorithm ◽  
Automatic Navigation ◽  
Photoelectric Encoder ◽  
Fuzzy Control Algorithm

This smart car control system by MC9S12G128 controller as the core, the use of a row of 18 laser tubes and 6 receiving tube as the path recognition sensor, through MC9S12G128 I / 0 interface for sensor signal, and use the feature extraction method to extract the track type, realization of the starting line, cross line recognition. According to road information, the design adopts fuzzy control algorithm of output PWM wave to control the gear steering, complete control of the direction of the car, the car speed extracted with the use of photoelectric encoder, comparing with the current set point to get speed deviation, and output PWM pulse is obtained by using the PID algorithm to control the motor to adjust the car speed, complete the closed-loop control of the car movement speed. Through the experiment, the system is designed to achieve the desired effect.

Research on Central Air Conditioning Control System in Office Buildings Based on STC Microcontroller

2014 ◽  
Vol 960-961 ◽  
pp. 658-661
Author(s):  
Li Ming Wei ◽  
Chen Li
Keyword(s):  
Control System ◽  
Internal Control ◽  
Air Conditioning ◽  
Control Unit ◽  
Air Conditioner ◽  
Temperature And Humidity ◽  
Central Air Conditioning ◽  
External Equipment ◽  
Operation Results ◽  
Conditioning Control

In this paper, hardware and software of the central air-conditioning control system is researched by STC series of enhanced 8051 microcontroller. The STC11F 08XE is the main control of the hardware part. Temperature and humidity sensor regulating valve and all kinds of motor are used as external equipment to complete the temperature and humidity of building the internal control of central air conditioner. In terms of software, the program is described by protel99SE software. Microcontroller program is compiled by Microcontroller development tools keil u and STC-ISP. The temperature and humidity control and optimization of central air conditioning are completed by PID parameters. Infrared control unit is operated and liquid crystal is displayed to show the operation results.

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