Temperature and Humidity Detection System Based on Power Line Communication

2012 ◽  
Vol 236-237 ◽  
pp. 242-246
Author(s):  
Jian Qiang Zhang ◽  
Dan Ya Chen ◽  
He Huang ◽  
Yun Lu
Keyword(s):  
Detection System ◽  
Power Line ◽  
Flow Diagram ◽  
Power Line Communication ◽  
Module Structure ◽  
Single Chip ◽  
Process Flow Diagram ◽  
Single Chip Computer ◽  
Power Line Carrier ◽  
Strong Capacity

Introduction of a intelligence control system of remote temperature & moisture adjustment based on single-chip computer. It explains hardware flow diagram, module structure and system software process flow diagram based on principle of power line carrier transmission and humiture control. With STC12C5404ADsingle chip computer and DHT21 as main control chip and humiture collection chip, the system hard ware is characterized by efficient and strong capacity of resisting disturbance compare to traditional humiture checking system.

Research on the Technology of Low-Voltage Power Line Carrier-Current Communication Based on OFDM

2013 ◽  
Vol 397-400 ◽  
pp. 2004-2007
Author(s):  
Wen Yan Ding ◽  
Zhi Ning Sun ◽  
Xiang Long Wang
Keyword(s):  
Low Voltage ◽  
Power Line ◽  
Power Line Communication ◽  
Channel Code ◽  
Carrier Wave ◽  
Wave Modulation ◽  
Modulation And Demodulation ◽  
Error Ratio ◽  
Power Line Carrier ◽  
Bit Error Ratio

The design on the system of low-voltage power line carrier-current communication based on OFDM was finished in this paper. Then model of the system was simulated and the modulation and demodulation of OFDM were realized. The results show that the integral performance can be enhanced with channel code. And the bit error ratio (BER) of the system is different with several sub-carrier wave modulation modes. This system could satisfy the requirement of power line communication basically.

Intelligent Monitoring Water System by PLC (Power Line Carrier) and Wireless Communication

2013 ◽  
Vol 846-847 ◽  
pp. 283-287
Author(s):  
Hong Mei Wang ◽  
Xu Ming Long ◽  
Ai Ling Luo
Keyword(s):  
Wireless Communications ◽  
Data Storage ◽  
High Reliability ◽  
Water System ◽  
Power Line ◽  
Core Network ◽  
Low Carbon ◽  
Single Chip ◽  
Power Line Carrier ◽  
Query Node

To saves water resources and low carbon environmental, we have designed a smart monitoring watering system based on power carrier and wireless communications, the system schema is divided into three layer, background server control the concentrated controller through wireless core network; each concentrated controller controls watering system through power carrier network; watering systems as the terminal access points of The Internet of Things , directly control the location regional's temperature, humidity and the soil situation, thereby achieved unmanned unattended, automatically watering. System integrates technology as wireless communications, power line carrier, single-chip microcomputer , application in LCD and so on, through hardware and software design, realizes data storage, the node information query, node failures and cable guard alarm function. Experimental results show that the overall system has low power consumption, high reliability, strong anti-jamming ability, so that it can better meet site's needs.

Power Line Carrier Detection System Based on Virtual Instrument

2011 ◽  
Vol 314-316 ◽  
pp. 2205-2209 ◽  
Author(s):  
Min Yu ◽  
Xin Yu Jin ◽  
Cheng Gang Xu ◽  
Yu Zhang
Keyword(s):  
Virtual Instrument ◽  
Evaluation System ◽  
Low Voltage ◽  
Detection System ◽  
Power Line ◽  
Power Line Carrier ◽  
Power Line Carrier Communication ◽  
Testing Standards ◽  
Carrier Communication

Low-voltage power line carrier (PLC) communication has received wide attention. However, testing standards are not well defined for PLC communication yet, and there are no professional, systematic and comprehensive detection indicators to measure and evaluate the quality of PLC communication. This paper proposed a low-voltage power line carrier communication evaluation system based on Virtual Instrument (VI). Simulation results revealed that the proposed system could precisely reflect the quality of the PLC communication.

FFU Motors Remote Monitoring System Based on Power Line Communication and GPRS

2012 ◽  
Vol 433-440 ◽  
pp. 5113-5117
Author(s):  
Yi Wang Wang ◽  
Bo Zhang ◽  
Feng Wen Cao ◽  
Hui Pan
Keyword(s):  
Motor Control ◽  
Low Voltage ◽  
Power Line ◽  
Control Mode ◽  
Power Line Communication ◽  
General Packet Radio Service ◽  
Remote Monitoring System ◽  
Power Line Carrier ◽  
On Line ◽  
Filter Unit

In view of the advantage of low voltage power line carrier technique and general packet radio service(GPRS), a solution of fan filter unit(FFU) motor remote mointoring system based on GPRS and low voltage power line communication is introduced. This system combines a framework of low voltage power line communication and GPRS network with host computer monitoring center, which changes the traditional FFU motor control mode, and realize FFU motor remote real-time on-line automatic monitoring.The system implementation methods were described in detail, and the hardware and sofware design were given.The test and practice showed that the proposed has higher efficient and stronger anti-interference capability, which met the requirements of networkization and intelligentization, and a better way for the FFU motor control. The designed system has good application value.

Study of SC-FDMA Reduce PAPR Based on the Power Line Carrier Communication

2014 ◽  
Vol 989-994 ◽  
pp. 3658-3662 ◽  
Author(s):  
Gang Jun Gong ◽  
Dang Ke Hao ◽  
Ye Zhang ◽  
Jun Lu ◽  
Gang Xu
Keyword(s):  
Average Power ◽  
Power Line ◽  
Power Line Communication ◽  
Power Ratio ◽  
Ofdma System ◽  
Emission Efficiency ◽  
Power Line Carrier ◽  
Power Rate ◽  
Power Line Carrier Communication ◽  
Carrier Communication

In order to reduce peak to average power ratio (PAPR) higher of OFDMA problems, this paper proposes a power line communication system based on SC-FDMA model, compared this model and OFDMA system on peak to average, the same power with the throughput, the same throughput required simulation sub carrier number of needed power and power rate users; The results show that: when introduced the SC-FDMA into the power line communication, can effectively reduce the system PAPR, the terminal can obtain better emission efficiency.

Switching Power Supply Impact on the Power Line Carrier Communication

2014 ◽  
Vol 513-517 ◽  
pp. 2820-2826
Author(s):  
Li Hua Liang ◽  
Xi Hong Zhang ◽  
Ye Shen He
Keyword(s):  
Power Supply ◽  
Electromagnetic Interference ◽  
Power Line ◽  
Power Line Communication ◽  
Switching Power Supply ◽  
Switching Power ◽  
Power Line Carrier ◽  
Power Line Carrier Communication ◽  
The Impact ◽  
Carrier Communication

This paper introduces the power line carrier communication technology and switching power supply, and expounds the factors that affect the switching power supply for power line communication, analyzes how to solve the problem of switching power supply in power line communication, such as analysis of phase noise electromagnetic interference on the impact of switching power supply, and proposes measures to perfect the switching power supply.

Sign in / Sign up

Export Citation Format

Share Document