Design of Voice Communication System Based on the ZigBee Technology for Power Plant

2014 ◽  
Vol 716-717 ◽  
pp. 1230-1233
Author(s):  
Chun Wei Xue
Keyword(s):  
Power Plant ◽  
Wireless Communication ◽  
Communication Technology ◽  
Communication System ◽  
Voice Communication ◽  
Zigbee Technology ◽  
Zigbee Network ◽  
The Voice

In this paper, the overview of ZigBee technology is firstly introduced. Futhermore, in order to evaluate the feasibility of voice communication over ZigBee network, this paper takes ZigBee as a wireless communication technology to investigate wireless voice communication. The results show that the voice communication based on ZigBee technology turn out to be effective.

Study on Communication Technology in Power User Electric Energy Data Acquire System

2014 ◽  
Vol 651-653 ◽  
pp. 1097-1100
Author(s):  
Jun Wei Ma ◽  
Li Yan ◽  
Xiao Wei Hao ◽  
Xue Jiang Gao ◽  
Wei Zhao
Keyword(s):  
Wireless Communication ◽  
Smart Grid ◽  
Communication Technology ◽  
Communication System ◽  
Electric Energy ◽  
Energy Data ◽  
System Building ◽  
Made In

Power user electric energy data acquire system is the important part of building a strong smart grid, and the communication system building is placed in the key position. Firstly, the application of wireless communication technology in the electric energy data acquire system is introduced in this paper. Secondly, the EPON technology is given. Lastly, a comparison of the two communication schemes is made in the ten aspects in detail, hoping that it is as a reference for the construction of power user electric energy data acquire system.

scholarly journals Voice and Position Simultaneous Communication System Based on Beidou Navigation Constellation

2020 ◽  
Vol 38 (5) ◽  
pp. 1010-1017
Author(s):  
Zhen Ao ◽  
Feng Li ◽  
Qiang Ma ◽  
Guiqing He
Keyword(s):  
Communication System ◽  
Linear Prediction ◽  
Voice Conversion ◽  
Prediction Algorithm ◽  
Short Message ◽  
Navigation Systems ◽  
Analysis Program ◽  
Data Format ◽  
Voice Communication ◽  
The Voice

Considering China Beidou has unique two-way communication capability for short messages that are not available in other navigation systems such as GPS, a 600bps vocoder adapted to the short message channel of Beidou is developed. The sinusoidal excitation linear prediction algorithm is adopted by the vocoder to achieve voice communication with clear communication quality. Furthermore, a coordinate compression algorithm for processing positioning information is designed to provide more transmission space for speech encoded data. Based on the above-mentioned results, a communication system that only the Beidou navigation system is used to complete two-way secure voice and positioning simultaneous interpretation is realized. The system firstly uses a voice conversion program to convert the voice coded data obtained by the vocoder codec module into the Beidou short message data format; and then the voice code analysis program and the latitude and longitude analysis program is used to parse the voice code and location information; Finally, the experimental results of voice communication and positioning transmission are verified on the Beidou short message transceiver, and the subjective MOS test score indicates that the way is paved for the practical use of Beidou short message voice communication.

scholarly journals Prevention of Voice Phishing through Analysis of Telephone Call Voice Characteristic

2018 ◽  
Vol 7 (3.33) ◽  
pp. 62
Author(s):  
Hyung Woo Park ◽  
Jong Bae Kim ◽  
Myung Jin Bae
Keyword(s):  
Wireless Communication ◽  
Facial Expression ◽  
Communication Networks ◽  
Communication System ◽  
The Other ◽  
Phone Call ◽  
Psychological State ◽  
Wireless Communication Networks ◽  
Minimum Data ◽  
The Voice

Using a phone call to morale of others seeking money as voice phishing. When receiving these fraudulent calls are easily embarrassed, and if they get embarrassed, become more easily be cheated. These voice phishing techniques are evolving to be more intelligent and more diverse. Accordingly, the amount of damage and the victim reality is increasing. The phone call, only the minimum data necessary to transfer the information contained is passed to the other party through the wired or wireless communication networks. In the voice of phone call, It is because the communication system mainly conveys the voice and does not convey the facial expression, environmental situation, and psychological state of the other person. Therefore, it is difficult to judge the authenticity in speech of voice phishing over the telephone network, and it is easy to fall into the deceitful deceit of evolving fraud. In this paper, we analyze the characteristics of voice phishing voices, examine their characteristics, and use them to reduce fraud damage. The voices recorded by victims of actual telephone fraud were analyzed and the characteristics were summarized.  

Remote Communication System for Transmission Line Monitoring Based on CMA

2013 ◽  
Vol 423-426 ◽  
pp. 2655-2658
Author(s):  
Wei Wang ◽  
Hui Deng ◽  
Wen Shen ◽  
Qi Gui Yao ◽  
Xiang Qun Wang
Keyword(s):  
Wireless Communication ◽  
Transmission Line ◽  
Communication Technology ◽  
Communication System ◽  
Fiber Optic ◽  
Remote Communication ◽  
Communication Scheme ◽  
Typical Design ◽  
Important Significance ◽  
Transmission Line Monitoring

This paper studied application of fiber-optic and wireless communication technology in remote communication system for transmission line based on CMA and proposed the typical design scheme for different applications. The design of CMA which realized monitoring data centralized and upload had been given. The remote communication system used OPGW communication scheme had been constructed and run well, which has important significance for the construction of transmission line monitoring system.

A new wireless communication system based on ZigBee technology

2009 ◽  
Author(s):  
Zixin Qi ◽  
Yunzhou Zhang ◽  
Limeng Zhao ◽  
Qiushi Bai ◽  
Enyi Shi
Keyword(s):  
Wireless Communication ◽  
Communication System ◽  
Wireless Communication System ◽  
Zigbee Technology

A Study on Smart Agricultural Facilities Wireless Networking

2014 ◽  
Vol 926-930 ◽  
pp. 2213-2216
Author(s):  
Zhen Gang Yao
Keyword(s):  
Wireless Communication ◽  
Low Power ◽  
Communication Technology ◽  
Network Topology ◽  
Short Distance ◽  
Low Complexity ◽  
Wireless Networking ◽  
Data Rate ◽  
Power Cost ◽  
Zigbee Network

A wireless networking method for smart agricultural facilities was proposed in this paper. As ZigBee was a short distance, low complexity, low power cost, low data rate and two-way wireless communication technology, the wireless networking method was based on ZigBee. Network topology, hardware and software were designed in the paper.

scholarly journals The Design of Terrestrial Trunked Radio (TETRA) Communication System at Juanda Airport

2013 ◽  
Vol 1 (1) ◽  
Author(s):  
Devi Miasari ◽  
Ari Wijayanti ◽  
Okkie Puspitorini
Keyword(s):  
Wireless Communication ◽  
Communication System ◽  
Data Communication ◽  
Coverage Area ◽  
Wireless Communication System ◽  
Link Budget ◽  
In The Beginning ◽  
The Voice

Nowdays the application of wireless communication system at the airport area is very important as it is used to support the services and savety of people. In the beginning the communication is done by using Handy Talkie (HT) and the communication is limited on voice. To increase the working operation and savety of public the data communication, besides the voice, is needed. This research is designed to use wireless communication using TETRA technology on frequency 450 MHz by counting the linkbudget and are coverage of the airport. The calculation shows that the more the distance between Tx and Rx, the bigger the pathloss will be. When the distance is 5 km, the pathloss reaches 144,46dBm on the antenna receiver 1,25m. Menwhile the Rx heigh antenna does not have any significance effect on the pathloss. The coverage area for the plan can reach the distance 3,3 km when the power of transmission is 33 dBm which is enough to cover the whole area of the airport.Keywords: TETRA, Link Budget, Pathloss, Airport

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