基于RDS县镇村级应急广播系统方案设计

Design of County-level Rural Emergency Broadcast System Based on RDS

应急广播系统是针对灾难、应急情况，相关政策颁布进行提前通知和宣传的系统，是属于数字广播通讯系统。目前存在为RDS、TS以及IP三种主流传输方式的应急广播传输方案，本文综合利用RDS传输信息，配合相应寻址加密手段，增加了音频广播传输控制灵活性，提高了系统的覆盖范围、稳定性与准确性。引入电话、短信插播功能，增强了突发状况下的应对性和时效性。利用音频柱结合GPRS回传功能，有效缩减了日常维护的难度与开支。

Emergency Broadcast System is a digital broadcast communication system which notifies and promulgates disasters, emergencies and relevant policies in advance. There are 3 mainstream emergency broadcast transmission solutions including RDS, TS and IP. This paper introduces the RDS solution. With addressing and en- cryption, it can enhance the control flexibility of audio broadcast transmission; improve the coverage, stability and accuracy of the system. The application of tele- phone and SMS spots enhances the timeliness under emergency situations. The sound column and GPRS return function can effectively reduce the difficulty and expense of routine maintenance.