JPS6433699A - Signal control system - Google Patents

Signal control system

Info

Publication number
JPS6433699A
JPS6433699A JP19138587A JP19138587A JPS6433699A JP S6433699 A JPS6433699 A JP S6433699A JP 19138587 A JP19138587 A JP 19138587A JP 19138587 A JP19138587 A JP 19138587A JP S6433699 A JPS6433699 A JP S6433699A
Authority
JP
Japan
Prior art keywords
signal
red
blue
emergency car
car
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
JP19138587A
Other languages
Japanese (ja)
Inventor
Taro Miyamoto
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP19138587A priority Critical patent/JPS6433699A/en
Publication of JPS6433699A publication Critical patent/JPS6433699A/en
Pending legal-status Critical Current

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  • Traffic Control Systems (AREA)

Abstract

PURPOSE:To improve safety by forcibly changing a signal provided on a road hindering the progressing direction of an emergency car to a red signal and forcibly changing a signal provided on the road of progressing direction to a blue signal when the emergency car arrives at a prescribed distance from the signal of the red signal. CONSTITUTION:A signal control signal transmitted from a transmitter 22 loaded in the emergency car 21 is received by a receiver 12 provided to the signal 11 when the emergency car 21 arrives at the prescribed distance from the signal 11 and transmitted to a signal controller 15. When the signal controller 15 inputs the signals control signal, it forcibly changes the signal transmitting this signal control signal to the blue signal and forcibly changes the other signal to the red signal. That means, the blue signal of the signal 13 is changed to the red signal from a yellow signal and simultaneously the red signal of the signal 11 is changed to the blue signal through the yellow signal. As a general car stops, the emergency car 21 can progress without stopping. Thus the safety is improved.
JP19138587A 1987-07-29 1987-07-29 Signal control system Pending JPS6433699A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19138587A JPS6433699A (en) 1987-07-29 1987-07-29 Signal control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19138587A JPS6433699A (en) 1987-07-29 1987-07-29 Signal control system

Publications (1)

Publication Number Publication Date
JPS6433699A true JPS6433699A (en) 1989-02-03

Family

ID=16273718

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19138587A Pending JPS6433699A (en) 1987-07-29 1987-07-29 Signal control system

Country Status (1)

Country Link
JP (1) JPS6433699A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04339888A (en) * 1991-05-17 1992-11-26 Aisin Chem Co Ltd Wet friction material
JPH05205193A (en) * 1992-01-27 1993-08-13 Sharp Corp Traffic signal controller

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04339888A (en) * 1991-05-17 1992-11-26 Aisin Chem Co Ltd Wet friction material
JPH05205193A (en) * 1992-01-27 1993-08-13 Sharp Corp Traffic signal controller

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