EP3084745A1 - Steuerungssystem und verfahren zur steuerung einer lichtsignalanlage - Google Patents
Steuerungssystem und verfahren zur steuerung einer lichtsignalanlageInfo
- Publication number
- EP3084745A1 EP3084745A1 EP15710751.7A EP15710751A EP3084745A1 EP 3084745 A1 EP3084745 A1 EP 3084745A1 EP 15710751 A EP15710751 A EP 15710751A EP 3084745 A1 EP3084745 A1 EP 3084745A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- control unit
- control
- signal
- traffic
- traffic signal
- 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
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/07—Controlling traffic signals
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/095—Traffic lights
-
- 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
Definitions
- the invention relates to a control system for controlling a traffic signal system.
- the invention further relates to a method for controlling a traffic signal system.
- the invention also relates to a computer program.
- German Offenlegungsschrift DE 10 2011 004 841 A1 discloses a method and a traffic signal control system for controlling traffic light systems.
- the object underlying the invention therein may be sailed ⁇ hen be to provide a control system for controlling a traffic signal.
- the patent US 4,463,339 A shows a control of a signal generator, wherein two control devices are provided for this purpose. If an error of the first control apparatus, the CONT ⁇ augmentation is transmitted to the second control device. In the case of an error in the second control unit, the second control unit attempts to remedy this fault itself, but without transferring the control back to the first control unit.
- the publication US 2012/0 150 421 AI shows a STEU ⁇ tion of a signal generator. There are two control devices vorgese ⁇ hen, the control of the signal generator can be transmitted from the first to the second control unit.
- the object underlying the invention can also be seen to provide a method for controlling a traffic signal system.
- a control system for controlling a traffic signal system comprising:
- the two control units are each formed in a control of the traffic signal system by the one
- Control unit to take over the control of the traffic signal system from the one control unit.
- a method of controlling a traffic signal system comprising the following steps:
- a computer program comprising program code for carrying out the procedural ⁇ Rens includes for controlling a traffic signal, when the computer program on a computer, in particular a
- Control system preferably a control unit, is executed.
- the invention therefore encompasses the idea of providing two control units which can each independently control the traffic light system.
- the other control unit can continue to control the traffic light system.
- the two control units are formed, in a Steue ⁇ tion of the traffic signal system by the one control unit the To take control of the traffic signal from the one control unit, a seamless transition from the control of the traffic signal system by the one control unit to the control of the traffic signal system by the other control unit is made possible in an advantageous manner.
- the traffic signal system can thus continue to operate without failure. As a result, it is possible, in particular advantageously, to further regulate traffic or traffic flows.
- At least one of the control units is configured to send transfer points to the other control unit, in which the other control unit could take over the control, the other control unit is adapted to sent over ⁇ acquisition points a takeover to check the controller and to take over the control depending on the verification.
- the other control unit is designed to store the transfer points sent into a memory and to take over the control if it is determined during the check that no transfer points are stored in the memory.
- Main control unit (first control unit) to the zu Kunststoffnden at ⁇ signal frames to the second system (second control unit) are transmitted in parallel. These are temporally arranged there in the Sig ⁇ Nalsentvorrat. Parallel to this, the second system always controls the current signal image (this is the core task in particular). During this processing, the takeover points are checked.
- the takeover point corresponds to a predetermined signal image.
- At least one of the control units in a control of Light signal system based on a signal time plan is ⁇ out is to send the signal schedule during the control to the other control unit, the other Steuerein ⁇ unit is designed to control the light signal system based on the sent signal time plan when assuming the control.
- the main ⁇ control unit (first control unit) can transmit (preferably up to 4) signal plans to the second control unit.
- the second control unit is particularly prepared to examine the transfer points, and then to switch optionally into one of the übermit ⁇ telten signal plans.
- At least one control unit is designed to switch on after it has been switched on Check whether the other control unit controls the traffic light system or not, and, if so, to take over the control of Lichtsig ⁇ nalstrom of the other control unit.
- This can be avoided in an advantageous manner that the control unit also starts after switching on with the control of the traffic signal system, this control could overlap with the control of the traffic signal system by means of the other control unit or get in the way. Such a scenario is thus avoided in an advantageous manner . Because before the one control unit starts with the STEU ⁇ tion of the traffic signal, it checks whether the other control unit already controls the traffic light system or not.
- the control unit may be equal linked to the control start of the traffic signal.
- At least one of the control units is designed, in response to a transfer command, to terminate the control and transfer it to the other control unit.
- Such a handover command can be issued, for example, in response to a groove ⁇ zerangins.
- a transfer command can also be sent from the other control unit to the one control unit.
- the two control units can also be formed according to a master-slave concept. This means, in particular, that the first control unit (main control unit) is the master and that the second control unit (emergency control unit) is the slave.
- a control unit is configured as a main control unit for controlling the light signal system in a normal operation and wherein the other control unit is also.
- the other control unit is also keptbil ⁇ det as Notêt nie for controlling the light signal system in an emergency operation.
- normal operation preferably, there is a possible ⁇ ness signal plans by an operator on, off or switch, detection data by traffic engineering methods to the control feed back (traffic-dependent Steue ⁇ tion) to perform time-dependent control and / or change server (automatically or on request) ,
- the emergency control unit Since usually an emergency operation is only of relatively short duration, the emergency control unit does not have to have all the functionalities of the main control unit and can be correspondingly smaller, that is, in particular, be equipped with less computing capacity. An emergency operation is then given to the special ⁇ when the main control unit is switched off or shut itself off, eg due to an update or a defect.
- the first control unit sends acquisition points to the second control unit during its control, at which the second control unit could take over the control, wherein the second control unit checks an acceptance of the control at the transmitted takeover points and depends on the review takes over the control.
- the second control unit stores the transmitted acceptance points in a memory and takes over the control when it is determined during the check that no takeover points are stored in the memory.
- the first control unit controls the traffic light system based on controls a signal timing plan and sends the signal time schedule during the control to the second control unit, the second control unit after the acquisition controls the light signal ⁇ system based on the sent signal time plan.
- the first control unit inserts the transfer points in the Sig ⁇ nalplan, wherein the second control unit from about ⁇ takeover point at which the second control unit, the control by the first control unit accepts the traffic signal based on this Transfer point controls the following signal plan.
- the second control unit stops in response to a handover ⁇ command, control, and hands over to the first control unit.
- the first control unit checks after switching on and before controlling whether the second control unit controls the light signal system ⁇ or not, and, if so, takes over the control of the traffic signal from the second control unit ⁇ .
- Traffic light system controls in a normal operation of the Lichtsignalanla ⁇ ge and wherein the second control unit acts as an emergency control unit, the control of the traffic signal system in a change from normal operation in an emergency operation and the
- Embodiments relating to the method result analogously from the embodiments with regard to the control system and vice versa. Accordingly made statements and corresponding advantages in terms of the method analogous to the embodiments and advantages with regard to the control system and vice versa.
- control unit includes in particular the case that both control units are designed accordingly.
- the first control unit can also be considered to be a control unit ⁇ be distinguished.
- the second control unit may in particular be referred to as the other control unit.
- the first control unit may thus for example be formed as Haupt horrein ⁇ unit.
- the second control unit may be playing designed as Notêtech at ⁇ .
- the two control units each comprise a processor.
- the Hauptsteu ⁇ erritt comprises a main processor (main CPU).
- Insbeson ⁇ particular it can be provided that includes a Notêtiens Notmaschineor (Not CPU or runflat CPU).
- the emergency processor can be referred to in particular as an emergency running processor. Because this emergency running processor should take over the control of the traffic signal system in emergency operation.
- the emergency operation can for example also be called emergency operation.
- the second control unit may be designed according to one embodiment as a monitoring unit. That means in particular that it causes a monitoring ⁇ function in normal operation. The second control unit checks or monitors in particular that or whether the main control unit (in general: first control unit) sends new signaling requests.
- FIG. 2 shows a flow diagram of a method for controlling a traffic signal system
- FIG. 3 shows a flowchart of a further method for controlling a traffic signal system
- 5 shows a sequence diagram for activating an emergency or emergency operation.
- FIG. 1 shows a control system 101 for controlling a traffic signal system (not shown).
- the control system 101 comprises two control units 103 and 105, each of which is designed to control a traffic signal un ⁇ depending on each other. Further, the two control units 103 and 105 are formed, in a control of the traffic signal system by the one control unit, the control of the traffic signal from the one control unit to take over ⁇ men.
- the first control unit 103 may, for example, be designed as a main control unit be.
- the control unit 105 may for example be formed as Notsteu ⁇ erritt. This means in particular that there is no symmetry between the two control units 103 and 105. But it can in particular consist of a symmetry. In particular, the two control units 103 and 105 are formed the same.
- FIG. 2 shows a flowchart of a method for controlling a traffic signal system.
- the traffic signal system is controlled by means of a first control unit.
- the control of the traffic signal from the first STEU ⁇ erashi is taken over by a second control unit.
- the second control unit controls the light ⁇ signal system.
- step 301 during the control according to step 201, transfer points are sent to the second control unit.
- step 303 the second control unit stores the takeover points in a memory.
- step 305 the second control unit checks whether there are still takeover points in the memory. If this is the case, the procedure goes back to step 201, the first STEU ⁇ erritt controls the traffic signal further itself. If, however, are no more-over points in the memory, so the control of the Lichtsignalanla ⁇ ge through which according to step 203 second control unit, so that it controls the traffic signal in step 205.
- the advantage of increased availability in the event of a fault of the first control unit is effected, which may be formed, for example, as a main control unit with main CPU ⁇ .
- the outer layer does not fall out.
- An external system in the sense of the present invention is the special ⁇ a summary of all sensors and actuators in the area of influence of the control system and thus comprises the special ⁇ the light signal system.
- a traffic-technically correct signaling in the sense of the present invention is:
- a fixed time signal schedule (signal schedule) that corresponds to the previously current signal schedule
- a predefined fixed schedule (signal schedule).
- a special situation or an emergency situation (emergency operation) in the sense of the present invention may be:
- the invention thus causes on ⁇ maintaining an operation of a light signal system in case of special situations, limited to the minimum variation of the control in an advantageous manner to provide a technically correct traffic signaled capitalization of the grounds to ensure.
- the transition to another control variant runs without interruption, with retention of all safety-relevant specifications, guidelines and standards.
- in emergency mode preferably only the execution of a fixed sig- nal plan is provided.
- the procedure can be preferably identical and ensures the rule that all Describesre ⁇ -relevant regulations, standards and rules are followed.
- the main processor (the main control unit) notify the emergency ⁇ running processor (the Notêttician) in time with predefined steps, such as a possible signaling in the future might look like.
- a special software algorithm automatically identifies ideal transition points (acquisition ⁇ points) between a possible future signaling and the stored signal times in NotlaufProzessor. Identified transfer points (so-called. Hops) are temporarily Stored ⁇ chert and result in a possible transfer scenario from the main processor to NotlaufProzessor.
- An optionally provided downstream signal fuse ensures at all times that no enemy or other dangerous signal images are switched.
- a signal protection is in particular a unit (RILSA) performs inde ⁇ dig and self-sufficient the necessary measures from the guidelines for traffic lights to signal protection.
- the main control unit thus advantageously carries out a valid, future calculation of the signal times, wherein an algorithm is provided which analyzes these future calculations such that an ideal, seamless transition
- a configured signal time plan or signal plan is marked as an emergency service plan. This marking can be carried out independently of a signal group orientation or phase orientation. In an embodiment, not shown, it can be provided that the currently running signal plan is used for emergency operation, in particular if no signal plan is marked in the configuration.
- the one control unit requests the other control unit to take over the control, whereby it then assumes control in response to the request.
- the one control unit can request the other control unit to terminate its control and to transfer it to the requesting control unit.
- the emergency control unit terminates its control and the emergency operation mode is canceled.
- a HOP hand over point, transfer point or takeover point
- the fault mode is a mode in which the light signal ⁇ plant flashes yellow, so-called fault flashing.
- HOPs with empty run flat index are preferably used in the following cases:
- the main control unit When starting the main control unit, it is checked whether the emergency control unit is in emergency operation. If this is the case, the emergency operation is terminated. For this purpose, the termination of the emergency operation is initiated by an appropriate message (Übergabeierhan) to the emergency control unit. Thereafter, the Notêtody waits after reaching the next transfer point to a signal control by the main control unit ⁇ . The main control unit automatically calculates the transition from the currently controlled image in the transfer point to the required target image.
- the emergency operation can be aborted by the user by pressing an off button.
- a message for ending the emergency operation is sent internally as in a ge ⁇ targeted retrieval from the emergency operation.
- the emergency plan runs to the next GSP (most favorable switching point, so a takeover point).
- the implicit mechanism uses an "all yellow" picture to get into a fault flashing of the system.
- the emergency operation is preferably also recognized
- the dynamic mode can be activated, where the current signal plan (SP) is used as an emergency plan or the static mode, in which an SP is specified as an emergency plan.
- SP current signal plan
- the configuration tools and / or the planners must take care in the re ⁇ gel that in the corresponding plans overall appropriated UZPs (transfer times, so tender points) are in front ⁇ handen. Especially with a clearly defined SP Müs ⁇ sen, the signal images in the respective UZP correspond to each other.
- the activation of the emergency operation can be carried out for all scenarios, for example, only by suspending the signaling requests.
- Scenario 1 Firmware Update (or other advanced Sze ⁇ scenarios) a system interface is created on the Notertonplan can be explicitly activated. Via the interface, the controlling component can be informed that the signaling to the emergency control unit should be terminated. Thus, the entry into the emergency operation can be observed with the main control unit.
- the system When the system enters standby mode, it preferably remains active until, for example, one of the following events occurs:
- the deactivation of the emergency operation can be achieved for example by fol ⁇ constricting user scenarios:
- the emergency operation is preferably switched off after a maximum number ⁇ ner messages occurred. Archiving is preferably terminated when crizoswei ⁇ se of the following conditions is reached:
- the archived data is requested by the main control unit •
- the emergency operation is finished (even "power off” and max. ⁇ archive size reached)
- Signaling monitoring messages occurring during emergency operation and a changing operating status are archived together with the time of occurrence.
- the control system 401 comprises a first control unit 403 and a second control unit 405, wherein the control unit 403 is designed as a main control unit.
- the control ⁇ unit 405 is designed as a NotlaufSteuerü.
- Reference numeral 407 points to a unit or a compo ⁇ nent for managing different status in the system 401.
- the reference numeral 409 points to a unit or a compo ⁇ nent, which supply a resulting signal picture taking into a user priority or operating priorities and / or the current operating mode and / or the time requirements can calculate.
- Reference numeral 411 points to a component or a unit for managing the status of the second control unit 405.
- Reference numeral 413 indicates a unit or a component that classifies a desired Signa ⁇ capitalization in accordance with the temporal sequence, and for passing on the signaling, the traffic signal provides ,
- the reference numeral 406 points to an interface between the two control units 403 and 405.
- the second control unit 405 transmits to the main control unit 403 its current operating status, that is, whether it is in emergency operation or in another operating mode. is located.
- the following scenarios may be provided:
- the unit 409 calculates HOPs corresponding to a signal plan. This in a step 423.
- the unit 409 sends an emergency signaling plan to the second control unit 405 as soon as a normal on-control of the traffic signal system is to begin, that is, when a signal plan is controlled (ie not in the off-picture, for example). This transmission is performed in step 425.
- the second control unit 405 accepts the emergency plan or emergency signaling plan, so receives it.
- the second control unit 405 stores the entge ⁇ gen réelle Notlaufplan.
- step 427 the following sequence is then inserted ⁇ restricts that only the case is considered that a signal plan is already running.
- the unit 409 sends continuously or continuously signaling frames per signal group for certain times including hops (Moegli ⁇ che-over points in time) to the second control unit 405.
- the unit 413 processes controllable to turn this signaling images temporally coupled signal frames.
- the operation mode 435 is the emergency operation at the start of the main control unit 403, the scenario 433 is performed.
- the unit 409 has recognized the operating mode emergency or emergency operation and is phasing itself to a ge ⁇ suitable time or takeover time in accordance with a
- Step 437 to take over by analyzing or viewing the constantly josge ⁇ reported signaling images or their status.
- the unit 409 sends a handover command to the second control unit 405 for signaling the Sprint ⁇ me decisions. This in a step 439.
- the second control unit 405 controls a signaling of the traffic signal until the next HOP.
- the main control unit 403 waits until this HOP to enter there with its own signaling, ie to take control of the traffic light system. This is shown in a step 443.
- FIG. 5 shows a sequence diagram for activating an emergency operation or an emergency operation of the control system 401 according to FIG. 4.
- the same reference numerals as in FIG. 4 are used. For the sake of clarity, not all features of FIG. 4 are shown in FIG.
- the unit 409 continuously sends signaling frames per Sig ⁇ nalelle for certain times, including hops. This signal frames temporally controllable in a step 429.
- the unit or component 413 proces ⁇ preparing these signaling images coupled. This, in a step 441.
- the sequence is reduced to the case where no direct signaling ⁇ white images are sent to the second control unit. This is for example intentional or due to an error. This means in particular that from the time of step 501 no signaling images are sent to the second control unit 405.
- the second control unit 405 controls a signaling of the Lichtsig ⁇ nalstrom until the next HOP.
- step 507 The control of the traffic signal system then takes place by the second control unit 405 according to a step 508. If, however, no emergency operation is possible, a transition is made in a step 509 to a fault indication. This means, in particular, that the signaling of the traffic signal system changes to an interference flashing according to a step 511. Correspondingly, a system status is set.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Traffic Control Systems (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014205324 | 2014-03-21 | ||
| PCT/EP2015/055145 WO2015140030A1 (de) | 2014-03-21 | 2015-03-12 | Steuerungssystem und verfahren zur steuerung einer lichtsignalanlage |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP3084745A1 true EP3084745A1 (de) | 2016-10-26 |
| EP3084745B1 EP3084745B1 (de) | 2022-01-26 |
| EP3084745B8 EP3084745B8 (de) | 2022-03-02 |
Family
ID=52692618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15710751.7A Active EP3084745B8 (de) | 2014-03-21 | 2015-03-12 | Steuerungssystem und verfahren zur steuerung einer lichtsignalanlage |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3084745B8 (de) |
| DK (1) | DK3084745T3 (de) |
| WO (1) | WO2015140030A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102024110341A1 (de) * | 2024-04-12 | 2025-10-16 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren und Vorrichtung zum Durchführen einer Softwareaktualisierung in einem Fahrzeug |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3336574A (en) * | 1965-02-15 | 1967-08-15 | John V Selzer | Auxiliary controllers for warning of malfunction for electrical traffic light systems |
| US4463339A (en) * | 1979-01-02 | 1984-07-31 | Ralph E. Frick | State/interval redundant controller system for traffic signals |
| US5073866A (en) * | 1989-09-20 | 1991-12-17 | Daeges Michael J | Traffic signal control system |
| US5659305A (en) * | 1995-03-17 | 1997-08-19 | Science Applications International Corporation | Backup traffic signal management system and method |
| US20120150421A1 (en) * | 2010-12-08 | 2012-06-14 | Mark Simpson | Dynamic Transitioning Between Intersection Controller Traffic Engines |
-
2015
- 2015-03-12 DK DK15710751.7T patent/DK3084745T3/da active
- 2015-03-12 EP EP15710751.7A patent/EP3084745B8/de active Active
- 2015-03-12 WO PCT/EP2015/055145 patent/WO2015140030A1/de not_active Ceased
Non-Patent Citations (2)
| Title |
|---|
| None * |
| See also references of WO2015140030A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3084745B8 (de) | 2022-03-02 |
| EP3084745B1 (de) | 2022-01-26 |
| DK3084745T3 (da) | 2022-04-04 |
| WO2015140030A1 (de) | 2015-09-24 |
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