CAJ | 학술논문

鉴于海事环境复杂多变，无线通信覆盖贫乏，为了能使遇险落水人员及时报警，主动报告自己的准确位置，本文基于北斗卫星短报文通信的功能，结合落水人员的遇险情况，设计了可以自动卫星定位并发出定位信息的报警终端。本文设计了一种新颖的落水触发电路，使得终端落水后自动进行卫星定位，并通过北斗卫星发出求救信号。北斗短报文通信电路采用北斗通信四合一模块，通过嵌入式处理器控制，实现卫星定位和求救信息发送。经测试表明，终端可以实现落水自动卫星定位，并通过北斗卫星发射，定位精度20米，发射成功率95%以上。
감우해사배경복잡다변，무선통신복개빈핍，위료능사우험낙수인원급시보경，주동보고자기적준학위치，본문기우북두위성단보문통신적공능，결합낙수인원적우험정황，설계료가이자동위성정위병발출정위신식적보경종단。본문설계료일충신영적낙수촉발전로，사득종단낙수후자동진행위성정위，병통과북두위성발출구구신호。북두단보문통신전로채용북두통신사합일모괴，통과감입식처리기공제，실현위성정위화구구신식발송。경측시표명，종단가이실현낙수자동위성정위，병통과북두위성발사，정위정도20미，발사성공솔95%이상。
Due to absence of wireless communication network on the sea, it is difficult to alarm timely once maritime emergency. In order to report the position of sinking people accurately, this paper designs a small portable Beidou alarm terminal which can auto alarm through Beidou satellite when falling into the sea. A new water trigger circuit is used in this terminal, which can control Beidou module to position and transmit the dangerous info and geographic position to rescue platform. All programs are executed by embedded MCU. Tests show that the terminal position accuracy arrives at 20 m and communication success ratio can run up to 95%.