scholarly journals Design of Central Air Conditioning Control Acquisition Device Based on IoT Technology

2021 ◽  
Vol 2143 (1) ◽  
pp. 012002
Author(s):  
Changwei Huang
Keyword(s):  
Information Integration ◽  
Air Conditioning ◽  
Rapid Development ◽  
Engineering Application ◽  
Mobile Terminal ◽  
Central Air Conditioning ◽  
Acquisition Device ◽  
Intelligent Devices ◽  
System Acquisition ◽  
Conditioning Control

Abstract With the rapid development of Internet and electronic technology, the Internet of things (hereinafter referred to as IOT) has become an important way of many intelligent devices, which can improve people’s application of intelligent devices. Through the IOT, we can carry out the research on the centralized monitoring system of central air conditioning [1]. Through the IOT, we can realize the IOT of indoor and outdoor units of central air conditioning, which can realize the important application of practical engineering projects. Through fuzzy algorithm, this paper can improve the overall improvement of the project. Through the cooperation of MCU and GPRS module, we can complete the wireless transmission of data., This can realize computer terminal monitoring and mobile terminal monitoring. Through engineering application, we can realize the automation and information integration of system monitoring, which will greatly improve the monitoring efficiency. Through the development of acquisition device, we can improve the comfort and security of central air conditioning, which will enhance the communication between the physical equipment of the system and the upper server network. Firstly, this paper analyzes the flow of fuzzy PID algorithm. Then, this paper specifies the system diagram of the central air conditioning control acquisition system [2]. Finally, this paper puts forward the important work of system acquisition.

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.

Recent Patents on OPC for Central Air-Conditioning System

2014 ◽  
Vol 8 (1) ◽  
pp. 234-239
Author(s):  
Jiejia Li ◽  
Peng Yang ◽  
Xiaoyan Han ◽  
Pengcheng Guo
Keyword(s):  
Air Conditioning ◽  
Integrated Management ◽  
Rapid Development ◽  
Data Communications ◽  
Air Conditioning System ◽  
Opc Server ◽  
Opc Client ◽  
Opc Technology ◽  
Central Air Conditioning ◽  
And Control

To achieve the centralized monitoring and integrated management of the central air-conditioning system, taking the characteristics of data communications and control complexity in the air-conditioning system into consideration, and combined with the OPC (OLE(Object Linking and Embedding) for Process Control) technology, an intelligent central airconditioning supervisory system is developed and designed. In this paper, after searching the OPC technology standard, the overall structure diagram of the monitoring system is designed, and the OPC server program is also developed by using Knight OPC Server Rapid Development Toolkits. The OPC client application program and man-machine interface are exploited by KingView configuration software. The monitor and control system whose interface is opened is designed for the central air-conditioning. In the end, the experiment result proves that the system operation has good performance for temperature-controller and humidity-controller clustered controlling as well as data communications, thus, satisfying the requirements.

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.

Numerical Simulation of College Dormitory Ventilation Airflow

2014 ◽  
Vol 522-524 ◽  
pp. 491-494
Author(s):  
Hui Xing Li ◽  
Cheng Cheng Tang ◽  
Guo Hui Feng ◽  
Rui Yang Gao
Keyword(s):  
Indoor Air ◽  
Air Conditioning ◽  
Architectural Design ◽  
Rapid Development ◽  
High Rise ◽  
The North ◽  
Heating And Cooling ◽  
Air Supply ◽  
Central Air Conditioning

China's higher education has entered a rapid development period, the total number of students increased dramatically, using the north-south double-sided architectural design of high-rise dormitory buildings constantly emerge. The indoor air quality of dormitory using central air-conditioning for heating and cooling has become the focus problem. To the north of the dormitory air conditioning as the research object, under the same condition and simulate and analysis the airflow of the side air supply and the top air supply of the air conditioning and ventilation room. The results show that the room adopt the side air supply form has more superiority in comfort and economy.

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.

Method and Realization of Central Air-Conditioning Control Strategy Communication Based on STM32

2014 ◽  
Vol 1039 ◽  
pp. 328-333 ◽  
Author(s):  
Tao Han ◽  
Xue Feng Lai ◽  
Liang Wen Yan ◽  
Zai Feng Zhang
Keyword(s):  
Control Strategy ◽  
Air Conditioning ◽  
Communication Protocol ◽  
Serial Communication ◽  
Good Control ◽  
Control Effect ◽  
Modbus Protocol ◽  
System A ◽  
Central Air Conditioning ◽  
Conditioning Control

Abstract. With the SIEMENS S7-200 PLC and HMI based on KingView being the master, a slave station of STM32F103C8T6 microcontroller is developed based on MODBUS protocol. The establishment and program designing of communication protocol using RS485/RS232 between master and slave is introduced firstly. Then the process of debugging between the microcontroller and PC, the microcontroller and the PLC is elaborated. Thus serial communication is implemented based on MODBUS protocol in RTU mode. The system will be applied in central air-conditioning control system. A good control effect will be obtained as the controlling strategy and main algorithm can be computed in the STM32 slave station.

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