JPH0336238U

JPH0336238U -

Info

Publication number: JPH0336238U
Application number: JP1989097277U
Authority: JP
Priority date: 1989-08-21
Filing date: 1989-08-21
Publication date: 1991-04-09

Description

[Brief explanation of drawings]

第１図はこの考案による通信装置の構成図、第
２図は従来のもののブロツク図を示すものであり
、図において１は移動体、２はアンテナ、３は指
向性アンテナ、４は駆動部、５は駆動信号、６は
制御部、７は送受信信号、８は送受信部、９は受
信信号レベル、１０は逐次読出しデータ、１１は
記憶部、１２は受信最大レベル検出部、１３は最
大受信レベル、１４は通信信号、１５は送信開始
信号、１６は通信部、１７は最大受信レベル、１
８は通信適合レベル、１９は比較部、２０は駆動
角度信号である。なお、図中同一あるいは相当部
分に同一符号を付して示してある。 FIG. 1 is a block diagram of a communication device according to this invention, and FIG. 2 is a block diagram of a conventional device. In the figure, 1 is a moving body, 2 is an antenna, 3 is a directional antenna, 4 is a drive unit, 5 is a drive signal, 6 is a control section, 7 is a transmission/reception signal, 8 is a transmission/reception section, 9 is a reception signal level, 10 is sequential read data, 11 is a storage section, 12 is a reception maximum level detection section, 13 is a maximum reception level , 14 is a communication signal, 15 is a transmission start signal, 16 is a communication section, 17 is a maximum reception level, 1
8 is a communication compliance level, 19 is a comparison section, and 20 is a drive angle signal. In the drawings, the same or corresponding parts are designated by the same reference numerals.

Claims

[Scope of utility model registration request]

An antenna of a mobile body that transmits and receives CW waves, a mobile body that communicates while moving using transmitted and received signals from the antenna, a plurality of directional antennas that transmit and receive CW waves from the mobile body and directs them to the mobile body, A plurality of drive units that move each directional antenna, a control unit that controls the drive units, a transmission/reception unit that transmits and receives communication signals to and from the directional antenna, a communication unit that generates and receives communication signals, and a control unit. a storage unit that stores the driving angle signal from the transmitter and the reception signal level from the transmitting/receiving unit, a reception maximum level detection unit that detects the antenna angle at which the reception level is maximum from the data in the storage unit, and the reception signal level and the communication compliance level. After receiving the CW waves from the moving object and directing the multiple directional antennas to the angle where the reception level is maximum, the CW wave from the moving object is The directional antenna remains stationary at that pointing position as long as the reception level that allows communication with the object is obtained, and if communication becomes impossible, the directional antenna resumes repeating the pointing operation and captures the moving object. A passive tracking communication device characterized by avoiding fluctuations in reception quality and mechanical wear of an antenna.