Design of Automatic Air Purification Device

2014 ◽  
Vol 644-650 ◽  
pp. 158-161
Author(s):  
Li Mei Wen
Keyword(s):  
Air Quality ◽  
Allergic Diseases ◽  
Air Purification ◽  
Single Chip ◽  
Real Time Control ◽  
Single Chip Microcomputer ◽  
Time Control ◽  
Air Cleaner ◽  
Air Pollutions ◽  
Air Purifier

In daily life because of polluted air people have a headache, insomnia, allergic diseases, respiratory diseases, etc. Air Purifier is also called "air cleaner" or "air sober machine". It refers to an equipment which can adsorb, decompose or transform all kinds of air pollutions,and volatilize an anion to improve the indoor air quality. In order to achieve the purpose of the microcomputer digital control of system, air purifier is designed with a single chip to reduce the artificial control. The single chip microcomputer is regarded as the core circuit part of the whole control system, the function of which is control all components of the air purification. Air purifier equipment consists of dust sensors, anion generator unit, fan module components and 4x4 matrix keyboard. Software program mainly includes: the display program, keyboard program, the clock program. This design aims at starting subsequent circuit module automatically through real-time control of air quality, achieving the function of air purification.

Study and Design of CAN Bus Node Based on MC912D60A Microcontroller in Automobile

2011 ◽  
Vol 201-203 ◽  
pp. 2317-2321
Author(s):  
Ji Fei Chen ◽  
Long Qing Zhao
Keyword(s):  
Design Principle ◽  
Can Bus ◽  
Design Method ◽  
Area Network ◽  
Single Chip ◽  
Real Time Control ◽  
Single Chip Microcomputer ◽  
Wiring Harness ◽  
Time Control ◽  
Flow Charts

Controller Area Network (CAN) is a kind of serial communication network that supports the distributed control and the real time control. The CAN have high performances and high reliabilities. It can solve many problems of complex circuitry, wiring harness increasing, operation reliability reducing and the difficulty of fault maintain increasing while using CAN Bus technology in automobile. In this paper, the form of CAN bus and node design method based on MC912D60A single chip microcomputer were studied and introduced. At last, the hardware design principle diagrams and software flow charts were given.

Based on the Double SCM Real Time Control System Design of Drum Brake

2013 ◽  
Vol 706-708 ◽  
pp. 667-673
Author(s):  
Sui Ping Li ◽  
Wei Dong Chen ◽  
Jing Jing Yao
Keyword(s):  
Control System ◽  
Software Design ◽  
Control System Design ◽  
Control Technology ◽  
Single Chip ◽  
Real Time Control ◽  
Single Chip Microcomputer ◽  
Simulation Test ◽  
Drum Brake ◽  
Time Control

Based on single-chip microcomputer(SCM) control technology, designed a set of new brake automatic cooling control system. Through the hardware and software design of the system, and simulation test, proved that the system is reliable. The system can solve the problem of truck brake failure effectively.

scholarly journals Effect of Air Purifier Use in the Classrooms on Indoor Air Quality—Case Study

Atmosphere ◽  
2021 ◽  
Vol 12 (12) ◽  
pp. 1606
Author(s):  
Małgorzata Basińska ◽  
Michał Michałkiewicz ◽  
Katarzyna Ratajczak
Keyword(s):  
Particulate Matter ◽  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Air Purification ◽  
Portable Devices ◽  
Microscopic Fungi ◽  
Before And After ◽  
Air Purifier ◽  
High Level

Dissatisfaction with indoor air quality is common even in relatively new or renovated Polish school buildings. To improve air quality in educational buildings, portable devices have seen increased use, for which manufacturers guarantee a high level of indoor air purification. However, their optimized operation largely depends on their correct use. The aim of this article was to determine the effectiveness of air purification in a primary school using an air purification device with an analysis of the classroom indoor air quality (IAQ). Two criteria were used, microbiological and particulate matter concentration. Measurements were made before device installation and during its continuous operation, and before and after lessons on chosen days. Measurements related to IAQ did not detect clear differences in the analyzed measurement periods. For microbiological contamination, in the morning before lessons, the total count for all bacteria and microscopic fungi was definitely lower than after lessons. Comparing the periods before and after device installation, no clear tendency for reducing the bacteria count or microscopic fungi occurred during air purifier operation, nor was there any noticeable trend in the reduction of particulate matter. There was no improvement in air quality in the classrooms during the operation of the purification devices.

Design and Implementation of a Kind of Intelligent Electric Blanket Temperature Control System

2013 ◽  
Vol 432 ◽  
pp. 447-452
Author(s):  
Rong Li ◽  
Zhe Ming Duan ◽  
Wei Zhou ◽  
Bing Chao Dong
Keyword(s):  
Real Time ◽  
Temperature Control ◽  
Temperature Control System ◽  
Single Chip ◽  
Real Time Control ◽  
Loop Control ◽  
Relay Control ◽  
Time Control ◽  
Control Relay ◽  
Design And Manufacture

Temperature control is the key problem in the design and manufacture of electric blankets. In order to solve current technological failure to real-time control of the temperature of electric blanket, this paper applies technical means of DS18B20 temperature acquisition and relay control temperature heating, together with key circuit, display circuit as well as other auxiliary circuit, and the system achieved electric blanket working temperature real-time intelligent control. Relay output controlled the temperature closed loop control by single-chip microcomputer, and a new type of intelligent temperature control technology of electric blanket is developed, real-time temperature control is enhanced, which improved the security and energy conservation of electric blanket.

scholarly journals The Design and Implementation of a Mobile Car Intelligent Toys

2018 ◽  
Vol 228 ◽  
pp. 03009
Author(s):  
Yajing Yu
Keyword(s):  
Obstacle Avoidance ◽  
Liquid Crystal Display ◽  
Single Chip ◽  
Single Chip Microcomputer ◽  
Control Module ◽  
Display Module ◽  
Left Turn ◽  
Time Control ◽  
Module Test ◽  
Microcomputer Control

The purpose of the subject is to design a car based on 51 single chip microcomputer control of nuclear intelligence toy car. Design is mainly divided into four modules respectively control module, test module, drive module, display module. Detection module by infrared receiving tube as tracking and obstacle avoidance of the detector to external environment for testing, testing mileage with hall element as the detector, test results of the test modules to control module, control module processed signal into the driver module to control the car turn left, turn right, forward, backward, at the same time control module and analysis processing state of marching into the 1602 LCD liquid crystal display status display. After many trials completed hardware design, the control core programming and sensor debug, finally realize the automatic tracking of toy cars, intelligent obstacle avoidance, mileage of display design requirements, and increase the car alarm, lights flashing remind and additional features such as voice control.

Design and Implementation of an Embedded PLC System with Applied-Information Technology

2014 ◽  
Vol 685 ◽  
pp. 401-404
Author(s):  
Xiao Juan Shi
Keyword(s):  
Machine Tool ◽  
Integrated Design ◽  
Ladder Diagram ◽  
Cnc Machine Tool ◽  
Single Chip ◽  
Cnc Machine ◽  
Real Time Control ◽  
Design Environment ◽  
Compact Structure ◽  
Time Control

To overcome the shortcomings of external PLC (Programmable Logic Controller) and soft PLC being widely employed in switch control of CNC machine tool, an embedded PLC system was developed by integrating AVR single chip ATMEGA169, PC bus technique and dual port RAM. Both hardware circuit and software of the PLC system were designed and implemented. The software of Industrial PC was developed by using ladder-diagram IDE (Integrated Design Environment) based on the platform of Borland C++ Builder. In this environment, it can fulfill edit, compilation and communication function of ladder-diagram file. It also can monitor and diagnose PLC running status. This developed embedded PLC system has the characteristics of compact structure, high communication and reliability. It can effectively satisfy real-time control requirements of CNC machine tool.

A Design for Electric Heating Thermostat System Based on ZigBee in Intelligent Building

2014 ◽  
Vol 587-589 ◽  
pp. 265-268
Author(s):  
An Jun Zhao ◽  
Min Wu
Keyword(s):  
Temperature Sensor ◽  
Electric Heating ◽  
Temperature Data ◽  
Wireless Transmission ◽  
Single Chip ◽  
Real Time Control ◽  
Intelligent Building ◽  
Indoor Temperature ◽  
Time Control ◽  
Reduce Energy Consumption

The system uses DS18B20 as a temperature sensor to collect temperature data on spot, uses ZigBee as wireless transmission module, and uses C8051F020, a single chip as a processor. The temperature control module issues instructions to achieve real-time control of the indoor temperature so as to control the temperature under established standard. The system can effectively reduce energy consumption.

Design of Monitoring System for Hydraulic Support Based on LabVIEW

2014 ◽  
Vol 989-994 ◽  
pp. 2758-2760 ◽  
Author(s):  
Shan Shan Tang ◽  
Chao Kun Wei
Keyword(s):  
Real Time ◽  
Monitoring System ◽  
Time Pressure ◽  
Data Communication ◽  
Support Pressure ◽  
Single Chip ◽  
Real Time Control ◽  
Pressure Monitor ◽  
Hydraulic Support ◽  
Time Control

Hydraulic support is widely used under the mine while the pressure is the most important factors of its safety.In view of the defects about present pressure monitor of mining hydraulic support ,designing a mining hydraulic support pressure monitoring system based on LabVIEW.This article mainly introducing the overall structure of the system, hydraulic system principle, the LabVIEW program, data communication and interface design.Using LabVIEW collection and storage support’s real-time pressure information. On the basis of the single chip microcomputer and the LabVIEW for data processing and display, improving the real-time control of hydraulic support.

Control System Design of a Humanoid Robot Head

2012 ◽  
Vol 468-471 ◽  
pp. 229-232
Author(s):  
Hao Guan ◽  
Xu Dong Yan ◽  
Jian Lan
Keyword(s):  
Control System ◽  
Humanoid Robot ◽  
Robot Manipulator ◽  
Low Cost ◽  
Serial Communication ◽  
Single Chip ◽  
Real Time Control ◽  
Time Control ◽  
Model Aircraft ◽  
Robot Head

The steering engine is a import execute component in controlling of humanoid robot、manipulator and model aircraft . In this paper, with the single chip processor STC89C52 as the core, and adopting the timer interrupt through serial communication way of real-time control system to produce PWM waves. This method has low cost and simple hardware design, can achieve more independent PWM waveforms output.

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