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Research and Implementation of QChat-based Vehicle Station Communication System

Author: XuYong
Tutor: SunJianDe; YangWenLin
School: Shandong University
Course: Electronics and Communication Engineering
Keywords: QChat Vehicle Station BREW QPK QDK
CLC: TN929.5
Type: Master's thesis
Year: 2013
Downloads: 8
Quote: 0
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Abstract


QChat is a CDMA1X/EVDO-based PTT communication technology,and is one of the best public trunking communication system. With China Telecom network, QChat intercom can be achieved without geographical restrictions. QChat-based vehicle station communication system has broad application prospects, such as Taxi, Logistics and large enterprise groups. In addition to provide trunking communication system of national coverage, QChat can also provide additional data value-added service to extend the application fields with the help of China Telecom3G network.According to application characteristics of vehicle station communication system, the subject focus on the two modules of intercom communication system and data communication system. The major work is software development program of communication system based on the existing hardware platform.Combined with the actual development process, this paper gives in-depth analysis of the study and implementation on QChat-based vehicle station communication system. Base on China Telecom CDMA network, considering that the fast-moving wireless environment,a overall architecture of the QChat-based vehicle station communication system is presented to provide high-quality intercom communication and data communication. Communication signaling protocols and network protocols for intercom are analyzed in detail. Special communication technologies are introduced, such as TCP, Socket and JSON. Protocols for data communication are described in detail. Special software development technologies are studied in depth, such as QDK, QPK and BREW. Analyzing and processing method of data communication protocols are also studied in depth.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications > Mobile Communications
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