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JPS5233207A - System for alarming approach of trains - Google Patents
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JPS5233207A - System for alarming approach of trains - Google Patents

System for alarming approach of trains

Info

Publication number
JPS5233207A
JPS5233207A JP10847575A JP10847575A JPS5233207A JP S5233207 A JPS5233207 A JP S5233207A JP 10847575 A JP10847575 A JP 10847575A JP 10847575 A JP10847575 A JP 10847575A JP S5233207 A JPS5233207 A JP S5233207A
Authority
JP
Japan
Prior art keywords
trains
alarming
approach
nearby
report
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.)
Granted
Application number
JP10847575A
Other languages
Japanese (ja)
Other versions
JPS5519790B2 (en
Inventor
Hajime Murayama
Katsuji Nakamura
Shiro Kitabayashi
Mitsuo Fukuda
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
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP10847575A priority Critical patent/JPS5233207A/en
Publication of JPS5233207A publication Critical patent/JPS5233207A/en
Publication of JPS5519790B2 publication Critical patent/JPS5519790B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Train Traffic Observation, Control, And Security (AREA)

Abstract

PURPOSE: Alarm system to report workmen along railway that trains is nearby, whether they move working position.
COPYRIGHT: (C)1977,JPO&Japio
JP10847575A 1975-09-09 1975-09-09 System for alarming approach of trains Granted JPS5233207A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10847575A JPS5233207A (en) 1975-09-09 1975-09-09 System for alarming approach of trains

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10847575A JPS5233207A (en) 1975-09-09 1975-09-09 System for alarming approach of trains

Publications (2)

Publication Number Publication Date
JPS5233207A true JPS5233207A (en) 1977-03-14
JPS5519790B2 JPS5519790B2 (en) 1980-05-28

Family

ID=14485688

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10847575A Granted JPS5233207A (en) 1975-09-09 1975-09-09 System for alarming approach of trains

Country Status (1)

Country Link
JP (1) JPS5233207A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0438597A (en) * 1990-06-04 1992-02-07 East Japan Railway Co Radio communicating system
JPH04100777A (en) * 1990-08-19 1992-04-02 East Japan Railway Co Portable warning device for approach of train

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5833608U (en) * 1981-08-31 1983-03-04 株式会社内海屋 core wall structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0438597A (en) * 1990-06-04 1992-02-07 East Japan Railway Co Radio communicating system
JPH04100777A (en) * 1990-08-19 1992-04-02 East Japan Railway Co Portable warning device for approach of train

Also Published As

Publication number Publication date
JPS5519790B2 (en) 1980-05-28

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