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Fireman positioning system

机译:消防员定位系统

摘要

A fireman positioning system includes: a first radio wave emitting device and a second radio wave emitting device, spaced with a predetermined distance and utilized for correspondingly emitting a first frequency modulated signal and a second frequency modulated signal; and a position receiving device, carried or worn by a fireman, and utilized for receiving the first frequency modulating signal and the second frequency modulating signal, and can demodulate the first frequency modulated signal via a first carrier signal so as to obtain a first output signal, and demodulate the second frequency modulated signal via a second carrier signal so as to obtain a second output signal, wherein a phase difference is formed between the first output signal and the second output signal, and the position receiving device can determine a direction angle of the fireman relative to the two radio wave emitting devices via the phase difference.
机译:消防员定位系统,包括:第一无线电波发射装置和第二无线电波发射装置,其间隔开预定距离并用于分别发射第一调频信号和第二调频信号。消防员携带或佩戴的位置接收装置,用于接收第一调频信号和第二调频信号,并可以通过第一载波信号对第一调频信号进行解调,以获得第一输出信号并通过第二载波信号对第二调频信号进行解调,得到第二输出信号,其中,在第一输出信号和第二输出信号之间形成相位差,位置接收装置可以确定方向角。消防员相对于两个无线电波发射设备的相位差。

著录项

  • 公开/公告号US10735921B2

    专利类型

  • 公开/公告日2020-08-04

    原文格式PDF

  • 申请/专利权人 MAN-CHEE LIU;

    申请/专利号US201916450944

  • 发明设计人 MAN-CHEE LIU;

    申请日2019-06-24

  • 分类号H04W4/33;H04W4/02;A62C99;H04W64;H04W4/029;

  • 国家 US

  • 入库时间 2022-08-21 11:26:32

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