JPS5744342A - Information collection system - Google Patents
Information collection systemInfo
- Publication number
- JPS5744342A JPS5744342A JP55118470A JP11847080A JPS5744342A JP S5744342 A JPS5744342 A JP S5744342A JP 55118470 A JP55118470 A JP 55118470A JP 11847080 A JP11847080 A JP 11847080A JP S5744342 A JPS5744342 A JP S5744342A
- Authority
- JP
- Japan
- Prior art keywords
- timer
- information
- terminal equipment
- answer signal
- circuit
- 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
- Detection And Prevention Of Errors In Transmission (AREA)
- Small-Scale Networks (AREA)
- Selective Calling Equipment (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
PURPOSE:To prevent radio interference by making the resending timing of each terminal equipment different in a system which transmitting pieces of information from many terminal equipments, decentralized at respective places, to a center station over a one-circuit radio channel. CONSTITUTION:When information is detected by a detecting circuit 2 at a terminal equipment, a transmission control circuit 3 actuates a transmitting circuit 4 to transmit the information to a center station and also actuates a timer 6. The center station, when receiving the information sent from the terminal equipment accurately, sends an answer signal back. On receiving the said answer signal, an answer signal detecting circuit 8 stops the clocking operation of the timer 6. If the answer signal is received, the time-up operation of the timer 6 actuates the transmitting circuit 4 again to resend the information and the timer 6 is actuated to restart the clocking operation. The time-up point of the timer 6 of every terminal equipment is made different.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55118470A JPS5744342A (en) | 1980-08-29 | 1980-08-29 | Information collection system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55118470A JPS5744342A (en) | 1980-08-29 | 1980-08-29 | Information collection system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5744342A true JPS5744342A (en) | 1982-03-12 |
Family
ID=14737463
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55118470A Pending JPS5744342A (en) | 1980-08-29 | 1980-08-29 | Information collection system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5744342A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6253527A (en) * | 1985-09-03 | 1987-03-09 | Fujitsu Ten Ltd | Optical calling system in mobile radio system |
JPH02199931A (en) * | 1989-01-27 | 1990-08-08 | Fujitsu Ten Ltd | Data transmission system |
JPH02301393A (en) * | 1989-05-16 | 1990-12-13 | Nec Home Electron Ltd | Traffic management system |
JP2010272070A (en) * | 2009-05-25 | 2010-12-02 | Panasonic Electric Works Co Ltd | Alarm system |
-
1980
- 1980-08-29 JP JP55118470A patent/JPS5744342A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6253527A (en) * | 1985-09-03 | 1987-03-09 | Fujitsu Ten Ltd | Optical calling system in mobile radio system |
JPH02199931A (en) * | 1989-01-27 | 1990-08-08 | Fujitsu Ten Ltd | Data transmission system |
JPH02301393A (en) * | 1989-05-16 | 1990-12-13 | Nec Home Electron Ltd | Traffic management system |
JP2010272070A (en) * | 2009-05-25 | 2010-12-02 | Panasonic Electric Works Co Ltd | Alarm system |
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