JPS5663639A - Data collection system - Google Patents

Data collection system

Info

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
Application number
JP14017879A
Other languages
Japanese (ja)
Inventor
Takeshi Abe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ricoh Co Ltd
Original Assignee
Ricoh Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP14017879A priority Critical patent/JPS5663639A/en
Publication of JPS5663639A publication Critical patent/JPS5663639A/en
Pending legal-status Critical Current

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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
JP14017879A 1979-10-30 1979-10-30 Data collection system Pending JPS5663639A (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5221588A (en) * 1975-08-12 1977-02-18 Asahi Chem Ind Co Ltd Remote monitor device

Patent Citations (1)

* Cited by examiner, † Cited by third party
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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