渔用对讲机的语音加密器设计

Design of Voice Encryption Device for Fishery Radio

渔船无线电通信对于渔业安全生产有着举足轻重的作用,共同作业的渔船之间必须保持经常性联络。它可以加强海上通信联络,及时交流生产情况,互发渔群信息,分析中心渔场,指挥船只调度,确保安全生产,海上遇险时发送求救信号等。但是在很多特殊的场合,对讲机的通话内容往往是不能泄漏的。如共同作业的渔船之间发布鱼群信息等,必须把对讲机的语音信息进行加密才能进行传输。文章设计一种对讲机加密板,硬件上以STC15S204EA为核心,使用分割频带语音加密芯片CMX264D5和FSK通信芯片CMX865A设计的语音加密器,保密性能好,别人无法监听。

Fishing boat radio communication is very important for fishery safety production, frequent contact between fishing vessels must be maintained. This can enhance maritime communications, timely exchange of production, send each other information of fishery group, analyze center fishery, command ship scheduling, ensure safety in production, send a distress signal if maritime distress happened etc.. But in many special occasions, the content of the intercom is often not leaking. Such as the joint operation of the fishing boat to publish information on the fish and so on, the voice information must be encrypted to carry out transmission. In this paper, we design a kind of intercom encryption board, on hardware use STC15S204EA as the core, use splitting frequency band voice encryption chip and FSK communication chip CMX865A to design voice encryption device, it has good security performance, others cannot monitor.