JPS5850835A - Two-way communication system between on road and moving body - Google Patents

Two-way communication system between on road and moving body

Info

Publication number
JPS5850835A
JPS5850835A JP14804581A JP14804581A JPS5850835A JP S5850835 A JPS5850835 A JP S5850835A JP 14804581 A JP14804581 A JP 14804581A JP 14804581 A JP14804581 A JP 14804581A JP S5850835 A JPS5850835 A JP S5850835A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
number
polling
road
machine
vehicle
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
JP14804581A
Inventor
Akihiko Nakamura
Original Assignee
Sumitomo Electric Ind 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

Links

Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G1/00Traffic control systems for road vehicles
    • G08G1/09Arrangements for giving variable traffic instructions
    • G08G1/0962Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
    • G08G1/0967Systems involving transmission of highway information, e.g. weather, speed limits
    • G08G1/096766Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission
    • G08G1/096783Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission where the origin of the information is a roadside individual element

Abstract

PURPOSE:To shorten an ID number and to shorten a polling period greatly by giving a moving body a local polling number which passes only in one communication area. CONSTITUTION:When a vehicle 7 enters the service area of a road machine 1, the road machine 1 transmits a trigger signal to the vehicle. The vehicle 7 receives the trigger signal to transmit its ID code and a demand signal. The road machine 1 transmits those signals and a local polling number to a central data processing unit 4. Then, the vehicle 7 enters the service area of a road machine 2. On the basis of data from the central data processing unit 4, the road machine 2 scans the local polling number. Once receiving its polling number, the vehicle 7 returns an answer signal. The local polling number depends upon the number of vehicles in the service area, but consists of about 4 bits.
JP14804581A 1981-09-19 1981-09-19 Two-way communication system between on road and moving body Pending JPS5850835A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14804581A JPS5850835A (en) 1981-09-19 1981-09-19 Two-way communication system between on road and moving body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14804581A JPS5850835A (en) 1981-09-19 1981-09-19 Two-way communication system between on road and moving body

Publications (1)

Publication Number Publication Date
JPS5850835A true true JPS5850835A (en) 1983-03-25

Family

ID=15443898

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14804581A Pending JPS5850835A (en) 1981-09-19 1981-09-19 Two-way communication system between on road and moving body

Country Status (1)

Country Link
JP (1) JPS5850835A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6081942A (en) * 1983-10-12 1985-05-10 Hitachi Ltd Digital recorder for driver's trip
US5127692A (en) * 1987-10-20 1992-07-07 Canon Kabushiki Kaisha Article gripping apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6081942A (en) * 1983-10-12 1985-05-10 Hitachi Ltd Digital recorder for driver's trip
JPH0347782B2 (en) * 1983-10-12 1991-07-22 Nitsutsu Sogo Kenkyusho Kk
US5127692A (en) * 1987-10-20 1992-07-07 Canon Kabushiki Kaisha Article gripping apparatus

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