JPS5744353A - Information collection system - Google Patents

Information collection system

Info

Publication number
JPS5744353A
JPS5744353A JP55120156A JP12015680A JPS5744353A JP S5744353 A JPS5744353 A JP S5744353A JP 55120156 A JP55120156 A JP 55120156A JP 12015680 A JP12015680 A JP 12015680A JP S5744353 A JPS5744353 A JP S5744353A
Authority
JP
Japan
Prior art keywords
origination
optional
period
center station
polling
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
JP55120156A
Other languages
Japanese (ja)
Inventor
Takayoshi Aiki
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP55120156A priority Critical patent/JPS5744353A/en
Publication of JPS5744353A publication Critical patent/JPS5744353A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L12/403—Bus networks with centralised control, e.g. polling

Abstract

PURPOSE:To prevent data from overlapping each other by an information collection system which sends information to a center station by employing a pollying system and an optional origination system in combination, by sensing information on optinal origination generated during a polling period to the center station with a predetermined time difference. CONSTITUTION:On the completion of a period of polling from a center station, optional origination control mechanisms provided to respective terminal equipments No.1, No.2-No.n start operation to transmit requests for optional origination, generated during the polling period, successively according to times t1, t2-tn set to respective optional origination control mechanism. Therefore, data from respective terminal equipments are transmitted to a center station without overlapping each other. In an optional origination period DELTAT after the period T, terminals generating requests for optional origination newly become capable of originating successively.
JP55120156A 1980-08-30 1980-08-30 Information collection system Pending JPS5744353A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55120156A JPS5744353A (en) 1980-08-30 1980-08-30 Information collection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55120156A JPS5744353A (en) 1980-08-30 1980-08-30 Information collection system

Publications (1)

Publication Number Publication Date
JPS5744353A true JPS5744353A (en) 1982-03-12

Family

ID=14779333

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55120156A Pending JPS5744353A (en) 1980-08-30 1980-08-30 Information collection system

Country Status (1)

Country Link
JP (1) JPS5744353A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
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
JPH0492225U (en) * 1990-12-27 1992-08-11
US6091741A (en) * 1995-11-10 2000-07-18 Nec Corporation Radio packet communication system capable of avoiding transmission collision

Cited By (3)

* Cited by examiner, † Cited by third party
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
JPH0492225U (en) * 1990-12-27 1992-08-11
US6091741A (en) * 1995-11-10 2000-07-18 Nec Corporation Radio packet communication system capable of avoiding transmission collision

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