JPS5663639A - Data collection system - Google Patents
Data collection systemInfo
- Publication number
- JPS5663639A JPS5663639A JP14017879A JP14017879A JPS5663639A JP S5663639 A JPS5663639 A JP S5663639A JP 14017879 A JP14017879 A JP 14017879A JP 14017879 A JP14017879 A JP 14017879A JP S5663639 A JPS5663639 A JP S5663639A
- Authority
- JP
- Japan
- Prior art keywords
- terminal equipment
- circuit
- data collection
- collecting station
- data collecting
- 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
- Selective Calling Equipment (AREA)
Abstract
PURPOSE: To elevate reliability of the remote data collection and reduce the cost of a terminal equipment, by providing a terminal equipment code confirming circuit on the MODEM of the terminal equipment side, detecting a terminal equipment code signal from the data collecting station, and connecting the terminal equipment and the data collecting station.
CONSTITUTION: The FS wave transmitted from the data collection station is supplied to the demodulating circuit 32 through the hybrid circuit 31 of the MODEM30 of the terminal equipment side, and in this circuit, it is converted to a clock pulse sent out from the data collecting station. A terminal equipment confirmation code signal contained in this pulse is detected by the terminal equipment code confirming circuit 50, one of the AND gate circuits G1WG3 for selecting a terminal equipment corresponding to the detected code signal is operated, and it is connected to one of the terminal equipments 401W403, respectively. A data of the selected terminal equipment is read out, is modulated to FS by the modulating circuit 33, and it is sent to the data collecting station through the circuit 31. In this way, reliability of the data collection is elevated, and also the cost can be reduced since the MODEM30 can be used in common by plural terminal equipments.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14017879A JPS5663639A (en) | 1979-10-30 | 1979-10-30 | Data collection system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14017879A JPS5663639A (en) | 1979-10-30 | 1979-10-30 | Data collection system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5663639A true JPS5663639A (en) | 1981-05-30 |
Family
ID=15262700
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14017879A Pending JPS5663639A (en) | 1979-10-30 | 1979-10-30 | Data collection system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5663639A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5221588A (en) * | 1975-08-12 | 1977-02-18 | Asahi Chem Ind Co Ltd | Remote monitor device |
-
1979
- 1979-10-30 JP JP14017879A patent/JPS5663639A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5221588A (en) * | 1975-08-12 | 1977-02-18 | Asahi Chem Ind Co Ltd | Remote monitor device |
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