基于国产密码算法的应急广播大喇叭适配器的设计

Design of Loud-speaker Adapter of Emergency Broadcasting Based on Domestic Cryptography Algorithm

应急广播大喇叭系统是国家应急广播系统的重要组成部分,一般由县、乡、村3级前端、传输覆盖网和大喇叭终端组成,具有一直在线、强制收听的特点,承担着应急广播主动覆盖的职责,将密码技术应用于大喇叭适配器的设计及装置研发,可保证播出的有序、安全。

Emergency broadcasting system is an important channel for our government to release emergency information.It usually contains front end,transmitting network and loud-speaker terminal of three-level which are county,township and village.It has characteristics of online all time,listened compulsively and signal covering initiatively.It assumes the responsibility of emergency broadcasting active coverage.This paper applies encrypting technology in design of loud-speaker adapter and research and development of equipment to ensure the order and security of broadcasting.