JPS5744345A - Position detection system - Google Patents
Position detection systemInfo
- Publication number
- JPS5744345A JPS5744345A JP55118471A JP11847180A JPS5744345A JP S5744345 A JPS5744345 A JP S5744345A JP 55118471 A JP55118471 A JP 55118471A JP 11847180 A JP11847180 A JP 11847180A JP S5744345 A JPS5744345 A JP S5744345A
- Authority
- JP
- Japan
- Prior art keywords
- base station
- station
- position detection
- portable radio
- command signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
PURPOSE:To detect the movement position of a portable radio equipment automatically by a command signal from a base station. CONSTITUTION:In the service area Sa of a base station (a), radio stations b1-bn for position detection having serice areas Sb1-Sbn are arranged. The service areas Sb1-Sbn cover all the service area Sa of the base station (a). The base station (a) sends a command signal. On judging that the command signal is addressed to a portable radio station Cn, the station Cn lowers its transmission output below rated one and sets its transmission frequency to one for position detection to send a pilot signal for position detection at the transmission frequency. The radio station bm having received the signal transfers the details of it to the base station (a). The base station (a) discriminates the number of the radio station bm to detect the position of the portable radio station Cn. The portable radio station Cn has communication with the base station (a) with large output during call service.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55118471A JPS5744345A (en) | 1980-08-29 | 1980-08-29 | Position detection system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55118471A JPS5744345A (en) | 1980-08-29 | 1980-08-29 | Position detection system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5744345A true JPS5744345A (en) | 1982-03-12 |
Family
ID=14737489
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55118471A Pending JPS5744345A (en) | 1980-08-29 | 1980-08-29 | Position detection system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5744345A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03239091A (en) * | 1990-02-16 | 1991-10-24 | Mitsubishi Electric Corp | Moving body radio communication equipment |
JP2001204058A (en) * | 2000-01-20 | 2001-07-27 | Toyota Motor Corp | Automatic mobile object controller, mobile unit position informing unit and mobile unit position detector |
-
1980
- 1980-08-29 JP JP55118471A patent/JPS5744345A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03239091A (en) * | 1990-02-16 | 1991-10-24 | Mitsubishi Electric Corp | Moving body radio communication equipment |
JP2001204058A (en) * | 2000-01-20 | 2001-07-27 | Toyota Motor Corp | Automatic mobile object controller, mobile unit position informing unit and mobile unit position detector |
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