GR3002969T3 - Monitoring device for signal lights of a road traffic signal arrangement - Google Patents
Monitoring device for signal lights of a road traffic signal arrangementInfo
- Publication number
- GR3002969T3 GR3002969T3 GR91401553T GR910401553T GR3002969T3 GR 3002969 T3 GR3002969 T3 GR 3002969T3 GR 91401553 T GR91401553 T GR 91401553T GR 910401553 T GR910401553 T GR 910401553T GR 3002969 T3 GR3002969 T3 GR 3002969T3
- Authority
- GR
- Greece
- Prior art keywords
- signal
- signals
- switched
- road traffic
- monitoring device
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/12—Checking intermittently signalling or alarm systems
- G08B29/126—Checking intermittently signalling or alarm systems of annunciator circuits
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/097—Supervising of traffic control systems, e.g. by giving an alarm if two crossing streets have green light simultaneously
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Traffic Control Systems (AREA)
- Road Signs Or Road Markings (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
In this monitoring device for signal lamps (RT-LA, GE-LA, GN-LA) of a road traffic signal arrangement with a control device (STE) for switching (RT-LS, GE-LS, GN-LS) the signal lamps and with a signal security device (SSE), the lamp current (I) of the red signals (RT-LA) and the lamp voltages (U) of the green and yellow signals (GN-LA, GE-LA) are monitored for conflict-free signalling and the circuits are checked for absence of malfunction. For this purpose, at regular intervals the existing switched states of the signals are changed for a short period of time. The signal security device (SSE) evaluates these expected changes as check signals; failure of a check signal indicates a malfunction of the signal securìty device. The short period of time is kept here to such a length that there is no visible effect on the signals, e.g. one millisecond. With a control instruction (KB) of the control device (STE) switched-on signal lamps are momentarily switched off and switched off signal lamps are momentarily switched on. <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3621305 | 1986-06-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
GR3002969T3 true GR3002969T3 (en) | 1993-01-25 |
Family
ID=6303686
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GR91401553T GR3002969T3 (en) | 1986-06-25 | 1991-10-23 | Monitoring device for signal lights of a road traffic signal arrangement |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0251097B1 (en) |
JP (1) | JPS638900A (en) |
AT (1) | ATE66082T1 (en) |
DE (1) | DE3771946D1 (en) |
GR (1) | GR3002969T3 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3805949A1 (en) * | 1988-02-25 | 1989-09-07 | Siemens Ag | DEVICE FOR THE PARTIAL SHUTDOWN OF A ROAD SIGNAL SYSTEM |
DE3910864C1 (en) * | 1989-04-04 | 1990-05-23 | Siemens Ag, 1000 Berlin Und 8000 Muenchen, De | |
BE1004100A3 (en) * | 1990-12-04 | 1992-09-22 | Vertongen Patricia Francois | CONTROL CIRCUIT FOR SIGNALING LIGHTS CONTROLLED BY A CONTROL DEVICE. |
CN106652527B (en) * | 2017-02-10 | 2019-09-06 | 青岛海信网络科技股份有限公司 | A kind of method for diagnosing faults and system of traffic signal control |
CN111681442A (en) * | 2020-06-09 | 2020-09-18 | 贾若然 | Signal lamp fault detection device based on image classification algorithm |
CN115311884A (en) * | 2022-04-29 | 2022-11-08 | 彭肇华 | Novel traffic signal lamp fault detection system |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4544910A (en) * | 1982-05-10 | 1985-10-01 | Max Hoberman | Exit sign lamp flashing system with self-checking provisions |
DE3428444A1 (en) * | 1984-08-01 | 1986-02-06 | Siemens AG, 1000 Berlin und 8000 München | MONITORING DEVICE FOR TRAFFIC SIGNALING SYSTEMS |
-
1987
- 1987-06-22 EP EP87108892A patent/EP0251097B1/en not_active Expired - Lifetime
- 1987-06-22 DE DE8787108892T patent/DE3771946D1/en not_active Expired - Fee Related
- 1987-06-22 AT AT87108892T patent/ATE66082T1/en not_active IP Right Cessation
- 1987-06-25 JP JP62156721A patent/JPS638900A/en active Granted
-
1991
- 1991-10-23 GR GR91401553T patent/GR3002969T3/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE3771946D1 (en) | 1991-09-12 |
ATE66082T1 (en) | 1991-08-15 |
EP0251097B1 (en) | 1991-08-07 |
JPS638900A (en) | 1988-01-14 |
EP0251097A1 (en) | 1988-01-07 |
JPH0477360B2 (en) | 1992-12-08 |
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