摘要
基于CDMA2000和WCDMA的无线网络,设计并实现了车载式音视频监控系统,包括运行于后台的监控中心子系统和运行于终端的调用子系统。重点阐述了该监控系统中监控终端以及监控中心的软件设计和关键技术。系统在工程环境下进行了调用测试,测试结果表明,基于该设计的车载终端充分利用了CDMA2000和WCDMA网络的传输带宽,相对于单模的音视频传输,在传输效果上有较大的提高。
In this paper, mobile audio and video monitoring system is designed and implemented based on the CDMA2000 and WCDMA wireless network, including the monitoring center subsystem running in the background and calling subsystem running in the terminal. Software design and key technology of the monitoring terminal and monitoring center in this monitoring system are mainly elaborated in this paper. Calling test is conducted for the system under engineering environment. The test results show that the vehicle mounted terminal makes full use of CDMA2000 and WCDMA network transmission bandwidth. Compared with the single mode of audio and video transmission, the transmission effect of this system is improved greatly.
出处
《电视技术》
北大核心
2013年第8期63-66,96,共5页
Video Engineering
基金
重庆邮电大学自然科学基金项目(A2009-46)
重庆市科委科技攻关项目(CSTC2008AC2073)
关键词
车载
双模
音视频监控
无线传输
vehicle mounted terminal
dual module
audio and video monitoring
wireless transmission
