Terminal based on TETRA digital trunking mobile communication system could send and receive status and short data service message, and achieve navigation and location through short data service.
The paper introduces the integrated digital video data broadcasting system based on the cable network. We discuss the structure of headend system and the implementation of terminal equipment.
本文介绍了应用于有线电视网上的综合数字视频数据广播系统，重点描述了前端系统的结构和后端设备的实现。
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Substation electric energy remote terminal unit(ERTU) is an important plant-level device for substation data acquisition, and it is obviously a part of digital substation system.