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1. 发明专利

JP2014003453A Field strength measurement device 有权
标题翻译：现场强度测量装置
公开(公告)号：JP2014003453A
公开(公告)日：2014-01-09
申请号：JP2012137180
申请日：2012-06-18
申请人： Nexco-East Engineering Co Ltd , 株式会社ネクスコ東日本エンジニアリング , Fujisoku:Kk , 株式会社フジソク
发明人： OKABE AKIRA , YASHIRO TSUYOSHI , FUKUMA SEISHI , ONUMA KATSUSHI , UCHIDA ATSUSHI , ISHII YASUYUKI
IPC分类号： H04B17/00 , H04H20/02 , H04H20/12
摘要： PROBLEM TO BE SOLVED: To provide a field strength measurement device which allows for real time measurement of field strength of a plurality of radio waves on an express way, and easy distinguishment of the field strength of a radio signal inside a tunnel and outside a tunnel.SOLUTION: An AM/FM field strength measurement unit 15 mesures the field strength of broadcast signals of a plurality of channels. A 400 MHz band field strength measurement unit 16 mesures the field strength of a wireless signal. A trigger generation unit 18 generates trigger signals corresponding to the inlet and outlet of a tunnel. A control unit 19 displays a field strength, measured based on a pulse signal added to serial data supplied from the AM/FM field strength measurement unit 15 and the 400 MHz band field strength measurement unit 16, on a display device 22, and further displays a mark indicating a tunnel on the display device 22, on the basis of the trigger signal.
摘要翻译：要解决的问题：提供一种场强测量装置，其能够以快速的方式实时地测量多个无线电波的场强，并且容易区分隧道内和隧道外的无线电信号的场强解决方案：AM / FM场强测量单元15测量多个通道的广播信号的场强。 400MHz频带场强测量单元16测量无线信号的场强。触发器产生单元18产生对应于隧道的入口和出口的触发信号。控制单元19显示基于从AM / FM场强测量单元15和400MHz带场强度测量单元16提供的串行数据添加的脉冲信号测量的场强，并且进一步显示基于触发信号在显示装置22上指示隧道的标记。

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