JPS55127699A - Abnormality detector for trafic signal device - Google Patents
Abnormality detector for trafic signal deviceInfo
- Publication number
- JPS55127699A JPS55127699A JP3456279A JP3456279A JPS55127699A JP S55127699 A JPS55127699 A JP S55127699A JP 3456279 A JP3456279 A JP 3456279A JP 3456279 A JP3456279 A JP 3456279A JP S55127699 A JPS55127699 A JP S55127699A
- Authority
- JP
- Japan
- Prior art keywords
- signal device
- abnormality detector
- trafic
- trafic signal
- abnormality
- 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
Links
Landscapes
- Traffic Control Systems (AREA)
- Emergency Alarm Devices (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3456279A JPS55127699A (en) | 1979-03-23 | 1979-03-23 | Abnormality detector for trafic signal device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3456279A JPS55127699A (en) | 1979-03-23 | 1979-03-23 | Abnormality detector for trafic signal device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55127699A true JPS55127699A (en) | 1980-10-02 |
Family
ID=12417746
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3456279A Pending JPS55127699A (en) | 1979-03-23 | 1979-03-23 | Abnormality detector for trafic signal device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55127699A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06162391A (en) * | 1992-11-24 | 1994-06-10 | Tokyo Seimitsu Co Ltd | Display device for traffic signal system |
WO1996033480A1 (en) * | 1995-04-20 | 1996-10-24 | The Nippon Signal Co., Ltd. | Monitor and control unit for traffic signals |
US6504485B2 (en) | 1996-12-17 | 2003-01-07 | The Nippon Signal Co., Ltd. | Monitoring apparatus and control apparatus for traffic signal lights |
-
1979
- 1979-03-23 JP JP3456279A patent/JPS55127699A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06162391A (en) * | 1992-11-24 | 1994-06-10 | Tokyo Seimitsu Co Ltd | Display device for traffic signal system |
WO1996033480A1 (en) * | 1995-04-20 | 1996-10-24 | The Nippon Signal Co., Ltd. | Monitor and control unit for traffic signals |
US6184799B1 (en) | 1995-04-20 | 2001-02-06 | The Nippon Signal Co., Ltd. | Monitoring apparatus and control apparatus for traffic signal lights |
US6504485B2 (en) | 1996-12-17 | 2003-01-07 | The Nippon Signal Co., Ltd. | Monitoring apparatus and control apparatus for traffic signal lights |
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