Uses integrated, the time sharing transmission way, the Controlling Signal of temperature, the audio frequency and the video frequency is processed by the DSP, transmits by a wireless channel. 采用集成、分时传输的方式,把温度、音频、视频被控对象,统一由1块DSP处理,由一条无线通道传输。
This article elaborated with emphasis based on the digital set-top box SIP video frequency terminal realization, including SIP agreement stack realization, call user's analysis, RTP data channel establishment, SIP network and other networks interconnections. 本文重点论述了基于数字机顶盒的SIP视频终端的实现,包括SIP协议栈的实现、呼叫用户的解析、RTP信息通道的建立、SIP网络和其他网络的互联。
Video Frequency Communication Channel: When there are many controlled stations, the 2 Mbps self-heal loop net can be established based on the control-platform unit. 视频通道:当被控站较多时,采用以调度台为单位组成2Mbps自愈环网;