JPS5747250A - Alarm device for approach of train - Google Patents

Alarm device for approach of train

Info

Publication number
JPS5747250A
JPS5747250A JP12135880A JP12135880A JPS5747250A JP S5747250 A JPS5747250 A JP S5747250A JP 12135880 A JP12135880 A JP 12135880A JP 12135880 A JP12135880 A JP 12135880A JP S5747250 A JPS5747250 A JP S5747250A
Authority
JP
Japan
Prior art keywords
train
approach
alarm device
alarm
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
JP12135880A
Other languages
Japanese (ja)
Inventor
Masaaki Sasada
Tadashi Iwata
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP12135880A priority Critical patent/JPS5747250A/en
Publication of JPS5747250A publication Critical patent/JPS5747250A/en
Pending legal-status Critical Current

Links

Landscapes

  • Train Traffic Observation, Control, And Security (AREA)
JP12135880A 1980-09-01 1980-09-01 Alarm device for approach of train Pending JPS5747250A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12135880A JPS5747250A (en) 1980-09-01 1980-09-01 Alarm device for approach of train

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12135880A JPS5747250A (en) 1980-09-01 1980-09-01 Alarm device for approach of train

Publications (1)

Publication Number Publication Date
JPS5747250A true JPS5747250A (en) 1982-03-18

Family

ID=14809282

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12135880A Pending JPS5747250A (en) 1980-09-01 1980-09-01 Alarm device for approach of train

Country Status (1)

Country Link
JP (1) JPS5747250A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6316263U (en) * 1986-07-18 1988-02-03
JPH01271088A (en) * 1988-04-22 1989-10-30 Mitsubishi Electric Corp Laser beam machine
JPH04365810A (en) * 1991-06-13 1992-12-17 Nissan Motor Co Ltd Working head for laser beam hardening
JPH04371514A (en) * 1991-06-18 1992-12-24 Nissan Motor Co Ltd Laser beam quenching method
JPH0853066A (en) * 1994-08-12 1996-02-27 Nippon Denki Ido Tsushin Kk Train approach alarm system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6316263U (en) * 1986-07-18 1988-02-03
JPH01271088A (en) * 1988-04-22 1989-10-30 Mitsubishi Electric Corp Laser beam machine
JPH04365810A (en) * 1991-06-13 1992-12-17 Nissan Motor Co Ltd Working head for laser beam hardening
JPH04371514A (en) * 1991-06-18 1992-12-24 Nissan Motor Co Ltd Laser beam quenching method
JPH0853066A (en) * 1994-08-12 1996-02-27 Nippon Denki Ido Tsushin Kk Train approach alarm system

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