EP0995180B1 - Verfahren und vorrichtung zur verkehrsabhängigen steuerung von lichtsignalanlagen - Google Patents
Verfahren und vorrichtung zur verkehrsabhängigen steuerung von lichtsignalanlagen Download PDFInfo
- Publication number
- EP0995180B1 EP0995180B1 EP98946224A EP98946224A EP0995180B1 EP 0995180 B1 EP0995180 B1 EP 0995180B1 EP 98946224 A EP98946224 A EP 98946224A EP 98946224 A EP98946224 A EP 98946224A EP 0995180 B1 EP0995180 B1 EP 0995180B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- traffic
- control
- transmitted
- light signal
- control unit
- 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.)
- Expired - Lifetime
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Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/07—Controlling traffic signals
- G08G1/081—Plural intersections under common control
Definitions
- the invention relates to a method and an apparatus for traffic-dependent control of traffic lights according to the preamble of claim 1.
- EP 0 296 426 is a data transmission system known for traffic signal systems, in which a central Traffic computer with several microprocessor-controlled control units is connected to traffic nodes, both a Data transmission from the traffic computer to the control unit as well a transmission of measurement data from the control unit to the traffic computer is possible. With this procedure it is only possible the recorded data in real time to the traffic computer transmitted so that a permanent data transmission is guaranteed have to be. A permanent data transfer of the measurement data of all control units for the traffic computer provides a number of data that is not in one in complex traffic systems reasonable timeframe can be edited. thats why such a system is not for the analysis of acceleration measures suitable.
- Target areas for critical indicators such as waiting times of traffic flows, occupancy times of detectors or frequency of certain signal groups or phases Target state of the respective control unit defined.
- Target ranges by specifying one or two limit values confined in one or two directions.
- Unilaterally limited Target areas are, for example, for waiting times of buses in front of traffic lights by specifying a maximum waiting time to be given as a limit, while two-sided limited Target areas for the occupancy time, for example be defined by detectors.
- the Occupancy time between a maximum value (permanent occupancy of the detector due to a jam) and a minimum value (Vehicles even get to the detector due to a traffic jam not just to the detector).
- control center polls additional control units realize that in this case their detector data to the Send traffic calculator.
- traffic calculator are based on the transmitted detector data and the assigned switching states of the traffic signal systems improved controls of the Light signal systems are set and sent to the corresponding control units transfer.
- the method according to the invention advantageously uses the construction of existing traffic computer control unit systems.
- existing control units can by installing additional control devices for the invention Procedures are used. It is from the already existing intelligence of the control units through already built-in microprocessors.
- the method according to the invention is also suitable Use trend in road traffic technology, existing permanent connections between control units and traffic computers to be replaced by temporary, event-related connections.
- a control device 1 is shown, which is in the generally located at a traffic junction and the switching states of traffic light systems 2 controls and detectors 3 evaluated data evaluated.
- the control unit 1 is with a traffic computer 5 connected. They are generally several, similar or identical control units with one Traffic computer 5 connected. A traffic engineer in one Traffic control center thus has the option of a Evaluation computer 6 to query the data of the traffic computer 5.
- Storage device 7 provided in the for a certain Time period (for example 8 hours) the detector data obtained as well as the assigned switching states of the traffic signal systems can be saved.
- the storage unit is preferably 7 designed as a so-called circulation storage, the oldest stored detector data and switching states clears while the current detector data and Switching states are saved. This determines the storage capacity the storage device 7 the period for which a retrospective review of the events on Control unit 1 is guaranteed.
- Induction loops for example, are used as detectors 3 or vehicle detectors based on infrared. These detectors 3 are able, among other things, to Traffic volume on a bus lane or travel times of buses to investigate.
- a target state of the control device is already in the traffic planning 1 for the data determined by the detectors 3 been committed. For example, maximum values for the waiting time of a tram in front of a traffic light system or waiting times of a bus at the end of a bus lane defined and stored in control unit 1. Based on measured detector data is constantly checked whether the target state is still maintained. The waiting times are too long, a status message from control unit 1 is sent to the Transmit traffic computer 5 via a temporary connection, which also includes the detector data stored before this event and contains switching states.
- an improved control for the control unit 1 is determined, which ensures the desired target state.
- the transmitted older ones are also saved Detector data and switching states are taken into account in order Traffic calculator 5 the influences of changes to the control program to check. For example, a determined Cross-relationship between the length of green time at one second light signal system, which is far from the control unit is removed, and the waiting time of buses at the control unit 1 assigned light signal system 2 a control program stipulated by the backlog due to a changed green time before the second traffic light system is reduced, whereby the bus on the traffic light system assigned to the control unit is no longer hindered in his onward journey.
- Programs to improve traffic control can then be sent to the individual control units 1 from the traffic computer 5 transferred.
- the target state is also by transmitting new limit values from the traffic computer 5
- Control unit 1 can be changed if the target state changes in Operation turns out not to be feasible.
Description
Claims (5)
- Verfahren zur verkehrsabhängigen Steuerung von Lichtsignalanlagen (3) mit mindestens einem lokalen Steuergerät (1) zum Steuern der Schaltzustände der Lichtsignalanlagen (2) und zur Datenerfassung von Detektoren (3) durch ein Steuerprogramm, wobei das Steuergerät (1) mit einem zentralen Verkehrsrechner (5) verbunden ist,
dadurch gekennzeichnet,daß Sollbereiche für zulässige Detektordaten zum Definieren eines Sollzustandes des Steuergeräts (1) angegeben und im Steuergerät (1) gespeichert werden,daß die aktuellen Detektordaten mit den zugeordneten Schaltzuständen der Lichtsignalanlagen im Steuergerät (1) erfaßt werden und innerhalb eines vorgegebenen Zeitintervalls gespeichert bleiben,daß eine Zustandsmeldung an den Verkehrsrechner (5) übertragen wird, sofern die aktuellen Detektordaten außerhalb der Sollbereiche liegen,daß mit der übertragenen Zustandsmeldung im Verkehrsrechner (5) ein verbessertes Steuerprogramm festgelegt und an das Steuergerät (1) zur Ausführung übertragen wird. - Verfahren zur verkehrsabhängigen Steuerung von Lichtsignalanlagen nach Anspruch 1,
dadurch gekennzeichnet, daß mit der Zustandsmeldung die gespeicherten Detektordaten und die zugeordneten Schaltzustände der Lichtsignalanlagen (2) an den Verkehrsrechner (5) übertragen werden. - Verfahren zur verkehrsabhängigen Steuerung von Lichtsignalanlagen nach einem der Ansprüche 1 oder 2,
dadurch gekennzeichnet,daß das mindestens eine Steuergerät (1) mit zusätzlichen Steuergeräten koordiniert betrieben wird, die ebenfalls mit dem Verkehrsrechner (5) verbunden sind,daß vom Verkehrsrechner (5) nach der Zustandsmeldung die gespeicherten Detektordaten und die zugeordneten Schaltzustände der Lichtsignalanlagen der zusätzlichen Steuergeräte angefordert und von diesen an den Verkehrsrecher (5) übertragen werdenund daß im Verkehrsrechner (5) mithilfe der übertragenen Detektordaten und Schaltzustände des mindestens einen Steuergerätes (1) und der zusätzlichen Steuergeräte ein'verbessertes Steuerprogramm festgelegt und an die betreffenden Steuergeräte (1) zur Ausführung übermittelt wird. - Verfahren zur verkehrsabhängigen Steuerung von Lichtsignalanlagen nach einem der Ansprüche 1, 2 oder 3,
dadurch gekennzeichnet, daß im Verkehrsrechner die übermittelten Zustandsmeldungen protokolliert werden. - Verfahren zur verkehrsabhängigen Steuerung von Lichtsignalanlagen (1) nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, daß das Verfahren solange wiederholt wird, bis das Steuergerät (1) keine Zustandsmeldungen mehr an den Verkehrsrechner (5) überträgt und damit seinen Sollzustand erreicht hat.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19729394 | 1997-07-09 | ||
DE19729394 | 1997-07-09 | ||
PCT/DE1998/001917 WO1999003082A2 (de) | 1997-07-09 | 1998-07-09 | Verfahren und vorrichtung zur verkehrsabhängigen steuerung von lichtsignalanlagen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0995180A2 EP0995180A2 (de) | 2000-04-26 |
EP0995180B1 true EP0995180B1 (de) | 2002-03-20 |
Family
ID=7835170
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98946224A Expired - Lifetime EP0995180B1 (de) | 1997-07-09 | 1998-07-09 | Verfahren und vorrichtung zur verkehrsabhängigen steuerung von lichtsignalanlagen |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0995180B1 (de) |
AT (1) | ATE214827T1 (de) |
DE (1) | DE59803442D1 (de) |
WO (1) | WO1999003082A2 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE602004004815T2 (de) | 2003-08-22 | 2007-11-22 | Sartomer Technology Co., Inc., Wilmington | Hochtemperaturstabilisierung von uv-systemen |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3967245A (en) * | 1970-03-06 | 1976-06-29 | Omron Tateisi Electronics Co. | Traffic signal control device with core memory |
FR2344902A1 (fr) * | 1976-03-18 | 1977-10-14 | Sfim | Controleur de carrefour a microprocesseur |
FR2457529A1 (fr) * | 1979-05-21 | 1980-12-19 | Christian Franceries | Procede de regulation de circulation de vehicules, dispositif pour la mise en oeuvre de ce procede et application de ce dispositif a la simulation de trafic |
DE2923121A1 (de) * | 1979-06-07 | 1980-12-18 | Siemens Ag | Verfahren und schaltungsanordnung zur vornahme einer plausibilitaetspruefung bezueglich aufeinanderfolgend auftretender zeitinformationen in verkehrssignalanlagen |
DE3003495A1 (de) * | 1980-01-31 | 1981-08-06 | Siemens AG, 1000 Berlin und 8000 München | Schaltungsanordnung zur steuerung von insbesondere wenigstens einer strassenkreuzung zugehoerigen signalgebern |
FR2480467A1 (fr) * | 1980-04-15 | 1981-10-16 | Garbarani Sa A | Controleur de carrefours a groupe d'ordres-phases et son procede |
FR2544096B1 (fr) * | 1983-04-07 | 1985-08-16 | El Si Sa Entreprise | Dispositif pour la synchronisation sequentielle d'appareils et/ou machines electriques ou electroniques |
FR2563355B1 (fr) * | 1984-04-18 | 1988-04-08 | Do Boi Quyet | Dispositif d'elaboration et d'affichage d'informations routieres |
ATE104786T1 (de) * | 1987-06-26 | 1994-05-15 | Siemens Ag | Datenuebertragungssystem fuer strassenverkehrssignalanlagen. |
-
1998
- 1998-07-09 DE DE59803442T patent/DE59803442D1/de not_active Expired - Fee Related
- 1998-07-09 AT AT98946224T patent/ATE214827T1/de not_active IP Right Cessation
- 1998-07-09 WO PCT/DE1998/001917 patent/WO1999003082A2/de active IP Right Grant
- 1998-07-09 EP EP98946224A patent/EP0995180B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE59803442D1 (de) | 2002-04-25 |
WO1999003082A3 (de) | 1999-04-01 |
EP0995180A2 (de) | 2000-04-26 |
ATE214827T1 (de) | 2002-04-15 |
WO1999003082A2 (de) | 1999-01-21 |
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