EP3559927A1 - Method and system for enhanced traffic light signaling and for computing a target speed of an automotive vehicle - Google Patents
Method and system for enhanced traffic light signaling and for computing a target speed of an automotive vehicleInfo
- Publication number
- EP3559927A1 EP3559927A1 EP17828922.9A EP17828922A EP3559927A1 EP 3559927 A1 EP3559927 A1 EP 3559927A1 EP 17828922 A EP17828922 A EP 17828922A EP 3559927 A1 EP3559927 A1 EP 3559927A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- traffic light
- waiting queue
- queue
- signal
- estimate
- 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
- 238000000034 method Methods 0.000 title claims abstract description 34
- 230000011664 signaling Effects 0.000 title abstract description 3
- 230000006870 function Effects 0.000 claims description 21
- 238000004891 communication Methods 0.000 claims description 20
- 238000012545 processing Methods 0.000 claims description 15
- 230000018199 S phase Effects 0.000 claims description 11
- 238000013459 approach Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000001413 cellular effect Effects 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000003384 imaging method Methods 0.000 description 3
- 230000006855 networking Effects 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 2
- 230000006399 behavior Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000013213 extrapolation Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000012886 linear function Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/04—Detecting movement of traffic to be counted or controlled using optical or ultrasonic detectors
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/042—Detecting movement of traffic to be counted or controlled using inductive or magnetic detectors
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
- G08G1/096708—Systems involving transmission of highway information, e.g. weather, speed limits where the received information might be used to generate an automatic action on the vehicle control
- G08G1/096716—Systems involving transmission of highway information, e.g. weather, speed limits where the received information might be used to generate an automatic action on the vehicle control where the received information does not generate an automatic action on the vehicle control
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
- G08G1/096708—Systems involving transmission of highway information, e.g. weather, speed limits where the received information might be used to generate an automatic action on the vehicle control
- G08G1/096725—Systems involving transmission of highway information, e.g. weather, speed limits where the received information might be used to generate an automatic action on the vehicle control where the received information generates an automatic action on the vehicle control
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
- G08G1/096733—Systems involving transmission of highway information, e.g. weather, speed limits where a selection of the information might take place
- G08G1/096758—Systems involving transmission of highway information, e.g. weather, speed limits where a selection of the information might take place where no selection takes place on the transmitted or the received information
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
- G08G1/096766—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission
- G08G1/096783—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission where the origin of the information is a roadside individual element
Definitions
- the invention generally relates to automotive vehicles and to methods and devices for regulating road traffic.
- the invention relates to a method for computing a target speed, at which an automotive vehicle is able to approach a traffic light and pass through it while the traffic light is in a green phase, taking into account the state of the waiting queue in front of the traffic light.
- C-ITS Cooperative Intelligent Transport Systems
- a traffic light 10 is equipped with an electronics module 12 configured to generate and transmit data messages 30 periodically.
- a vehicle 20 is equipped with receiving means 40 capable of receiving said messages.
- the vehicle is further capable of interpreting and processing the data comprised in said messages.
- SPaT messages Signal Phase and Time, SPaT messages, which provide information about the physical location of the traffic light, but also information indicating the current phase of the traffic light, i.e., green, orange or red, and information about the timing of upcoming phase changes.
- FIG. 2 illustrates an exemplary known SPaT signal, wherein at time t gl , a green phase starts.
- the traffic light changes to orange at time t ol and further to red at time t rl , and so on.
- GLOSA Green Light Optimized Speed Advisory
- the information provided by a traffic light is used by an electronics module of the automotive vehicle to compute a speed S, at which the car should approach the traffic light in order to arrive at the light while it is in a green phase.
- the corresponding time period at which the vehicle should arrive at the traffic light is indicated by the interval [t gl , t ol ].
- the traffic lights along a road traffic axis are generally linked by a data communication network, allowing for a synchronization among several traffic lights, and allowing a vehicle to obtain information enabling it to pass all the lights along a traffic axis during a green phase.
- GLOSA systems have been studied in the prior art, see for example "Performance study of Green Light Optimized Speed Advisory (GLOSA) application using an integrative cooperative ITS simulation platform ", Katsaros et al., 201 1 IEEE - 978-1-4577-9538-2/11).
- Patent document WO 2016/055589 suggests to extend the GLOSA framework to include further traffic information that is being sensed by one or more sensing modules on board of an automotive vehicle. The goal is to take into account at least some traffic information that is external to both the vehicle and the traffic light, such as regulatory speed limitations, or the speed of a third-party vehicle driving in front of the vehicle performing the GLOSA computation.
- the invention aims at providing a method and system that allow to take into account the state of the expected waiting queue in front of a traffic light, when computing a GLOSA-like speed advisory. Summary of the invention
- the invention provides a method for determining a target speed of an automotive vehicle using a speed computing device as the vehicle approaches a traffic light.
- the method comprises the following steps:
- said signal further comprises information relating to the length of a waiting queue in front of the traffic light, and said target speed is computed as a function of said information.
- said information relating to the length of a waiting queue in front of the traffic light may comprise the indication of at least one time period during which the traffic light is in a green phase and the corresponding waiting queue in front of the traffic light is expected to be empty.
- Said information relating to the length of a waiting queue in front of the traffic light may preferably comprise the indication of at least one time instant at which the waiting queue is not empty, together with the corresponding expected queue length.
- said information relating to the length of a waiting queue in front of the traffic light may preferably comprise an indication of the distance between the traffic light and the last vehicle in the corresponding waiting queue.
- the target speed may preferably be computed so that the automotive vehicle driving at the target speed is able to pass the traffic light without queuing in front of it.
- the method may comprise a step of generating said signal using a signal generating device and transmitting the signal using data transmission means to said speed computing device via a data communication channel.
- the data transmission means may preferably comprise a networking interface of the signal generating device.
- the data communication channel may preferably comprise a cellular data network or a vehicular ad-hoc network.
- the step of generating said signal may comprise:
- said estimate into a signal indicating the traffic light's phases as a function of time, so that said signal indicates at least one time period during which the traffic light is in a green phase and the waiting queue is expected to be empty.
- the step of generating said signal may further preferably comprise:
- the signal may preferably be updated or regenerated periodically.
- Said waiting queue may preferably comprise a current waiting queue or at least one upcoming waiting queue in front of the traffic light.
- the time required for a queue of automotive vehicles in front of the traffic light to empty may preferably be computed starting from the beginning of an upcoming green phase of the traffic light.
- the sensing means may preferably comprise a data processor, a traffic sensor, an image sensor coupled to an image processor, a data receiving device, or a combination of the above.
- the estimate(s) may preferably be stored in a memory element.
- said sensing means may estimate the length of a waiting queue in front of the traffic light and compute said estimate(s) on an average draining rate of the queue.
- the draining rate may be estimated based on observed draining rates of the queue, or it may be a predetermined value stored in a memory element to which the sensing means have read access.
- the sensing means may preferably receive traffic information via a data communication channel, said information being transmitted from at least one traffic information gathering node in a communication network and indicating a waiting queue length/duration or said estimate.
- the sensing means may preferably receive data from a transmitting device on board of the last automotive vehicle in a waiting queue as it passes the traffic light, said data indicating the time said vehicle spent in the queue, and wherein the sensing means use said waiting time as the estimate of the time required for the next upcoming waiting queue to empty.
- the estimate(s) and/or expected queue lengths/durations may preferably be a function of previously encoded estimates.
- the function may preferably be a linear function.
- said signal may further be received by data reception means of said speed computing device.
- the data reception means may preferably comprise a networking interface of said speed computing device.
- said distance estimate representing the distance separating the traffic light from the automotive vehicle, may be received by data reception means of said speed computing device or estimated using distance sensing means of said speed computing device.
- the distance sensing means may preferably comprise a radar device, or an imaging sensor coupled to an image processor.
- Said speed computing device may preferably be an on-board device of said vehicle.
- the device may comprise a Global Satellite Positioning, GPS, device.
- the device may be an electronic module that is part of the vehicles data infrastructure.
- the speed computing device may comprise a data processor located at a node in a communication network, which is configured to transmitting said target speed to said automotive vehicle.
- the signal generating device may preferably be comprised in an electronics module of said traffic light.
- the signal generating device may comprise a data processor located at a node in a communication network, which is configured to transmit said signal to said automotive vehicle.
- the device comprises data reception means configured for receiving, when an automotive vehicle approaches a traffic light, a signal indicating the phases of said traffic light as a function of time, the signal further indicating at least one time period during which the traffic light is in a green phase and a waiting queue in front of the traffic light is empty.
- the device further comprises computing means configured for computing a target speed of said automotive vehicle, the target speed being such that the automotive vehicle driving at the target speed arrives at the traffic light during a green phase thereof, wherein said target speed is computed as a function of an estimate of the distance separating the vehicle and the traffic light, and of said time period.
- the signal generating device comprises signal generating means, the signal generating means being configured to generate a signal indicating a traffic light's phases as a function of time, the signal further comprising information relating to the length of a waiting queue in front of the traffic light.
- Said information relating to the length of a waiting queue in front of the traffic light may preferably comprise the indication of at least one time period during which the traffic light is in a green phase and the corresponding waiting queue in front of the traffic light is expected to be empty.
- said information relating to the length of a waiting queue in front of the traffic light may comprise the indication of at least one time instant at which the corresponding waiting queue is not empty, together with the corresponding expected queue length.
- the signal generating device may further preferably comprise data transmission means configured for transmitting said generated signal to a receiving device.
- the signal generating device may further comprise sensing means for obtaining an estimate of the time required for a queue of automotive vehicles in front of said traffic light to empty, and processing means for encoding said estimate into said signal, so that the latter indicates at least one time period during which the traffic light is in a green phase and a waiting queue in front of the traffic light is expected to be empty.
- the signal generating device may further comprise sensing means for obtaining a further estimate, said further estimate being of a waiting queue length, or of a waiting queue duration being the expected time required for a waiting queue to empty, at at least one time instant wherein said waiting queue is not empty, and processing means for encoding said time instant and the corresponding waiting queue length/duration into said signal, so the latter indicates at least one time instant at which the waiting queue is not empty, together with the corresponding expected waiting queue length/duration.
- said waiting queue comprises a current waiting queue or at least one upcoming waiting queue in front of the traffic light.
- a method and system which allow to take into account the time expected for a waiting queue in front of a traffic light to become empty, when computing a GLOSA-like speed advisory.
- an automotive vehicle can approach the traffic light such that when it arrives at the height of the traffic light, the latter is in a green phase and there is no waiting queue.
- the invention extends the efficiency of GLOSA systems in real-world strigrii. Further, it allows the automotive vehicle to operate at a higher fuel efficiency, as braking, stopping and restarting actions due to the arrival in a waiting queue in front of a traffic light are avoided.
- the invention enables smoother traffic flows, improving in particular the overall traffic efficiency around traffic lights.
- the expected lengths and/or durations of the waiting queue(s) in front of a traffic light are communicated to an automotive vehicle approaching the traffic light. Knowing the lengths and/or durations of the waiting queues, a reduced target speed may be computed so as to arrive at the traffic light in a manner that minimizes or reduces the C0 2 emissions of a thermal engine driven vehicle, or more generally the energy consumption of any vehicle.
- figure 1 provides an illustration of a cooperative intelligent transport system known from the prior art
- figure 2 provide an illustration of the evolution of a SPaT signal in time, as known from the prior art
- FIG. 3 provides a schematic top view of a road with a traffic light in front of which a queue of vehicles as formed, and a third car approaching the traffic light;
- figure 4 provides an illustration of the evolution of an extended SPaT-like signal in time, in accordance with a preferred embodiment of the invention
- FIG. 5 provides a schematic illustration of a signal generating device in accordance with a preferred embodiment of the invention.
- figure 6 provides a schematic illustration of a speed computing device in accordance with a preferred embodiment of the invention.
- the relative wording "in front of a traffic light” is to be understood as describing locations from which the light emitted by a traffic light can be seen when looking into the direction of the traffic light. Therefor a queue of waiting automotive vehicles forms "in front" of a traffic light if said traffic light is in a red phase and the vehicles must stop and wait. It is further noted that one traffic light per road lane is assumed. Where there are several lanes and traffic lights on one road, the method according to the invention may be implemented independently for each lane and/or traffic light as adequate.
- Known traffic lights are equipped with electronics and logic modules that enable them to function and to change light phases on a regular predetermined basis or using information obtained using traffic sensors. Such equipment will not be described to any detail, as the present description focusses on features that are relevant to the invention.
- the length of a waiting queue may be readily exchanged with the duration of the waiting queue, as both measures are deemed equivalent and the skilled person is capable of computing one from the other.
- a duration of a waiting queue or equivalently the time required for a waiting queue to become empty, is mentioned, that duration may be readily exchanged with the length of the waiting queue, without departing from the scope of the invention.
- Figure 3 offers an illustration of a scenario in which the method in accordance with the invention finds its applications.
- the traffic light 10 While the traffic light 10 is in a red phase, automotive vehicles CI, C2 stop at the light and a queue forms along the road lane whose traffic is regulated by the traffic light 10.
- the traffic light Using a signal generating device 120 having data transmission means 128, the traffic light periodically broadcasts a signal 130 indicating its current phase and the timing of forthcoming phase changes.
- the signal includes information relating to the length and/or duration of the current waiting queue in front of the traffic light.
- the signal may also comprise information indicating the length and/or duration of upcoming waiting queues in front of the traffic light.
- the information relating to the length of the waiting queue in front of the traffic light comprises for example the expected timing of at least one phase during which the traffic light is in a green phase and the queue in front of it is empty.
- the time period T Q1 corresponding to this additional phase is encoded in the signal 130.
- the signal 130 may be transmitted in the form of an analogue signal or preferably in the form of data packets comprising structured data. Knowing the instants t gl , t g2 , ... at which green phases of the traffic light start, the signal generating device 120 has to obtain an expected time required for the current queue (and upcoming queues) to become empty.
- the estimation of the expected time period(s) may be implemented by several mathematical forecast models known as such in the art, without departing from the scope of the present invention.
- the last observed draining time for the queue may be used as expected value for all draining times of upcoming waiting queues.
- a linear extrapolation of several previously measured queue draining times may be used to estimate draining times T Q1 , T Q2 , ... of upcoming waiting queues.
- the notation T Q1 will denote either a current observation of the queue draining time, or a computed expected queue draining time, which takes into account, among other data, a current observation of the queue draining time. The use of the notation is clear for each specified embodiment.
- T Q2 Estimates of the draining times of upcoming waiting queues, i.e. waiting queues that are expected to form after the next upcoming green phase of the traffic light, T Q2 , .. . are computed similarly based on expected behavior of the traffic flows, and on the observations acquired up until the signal is generated.
- the signal may comprise only the information indicating the waiting queue's length and/or duration.
- the information relating to the length of the waiting queue in front of the traffic queue may further comprise indications of the expected length of the waiting queue, at at least one instant in time.
- the estimation of the queue lengths may be implemented by several mathematical forecast models known in the art, based on current and/or earlier observations of the queue length evolution.
- the signal is preferably updated or regenerated periodically.
- the expected time/times that is/are encoded into signal 130 is/are preferably computed at an electronics module embedded on the traffic light 10, even more preferably being part of the signal generating means 120.
- the computation may be made at a central computation node in a communication network linked to the signal generating means, or even on board of an automotive vehicle. In the latter cases, the resulting expected draining time is transmitted to the signal generating means using a VANET or using a cellular data communication channel.
- the computed values are preferably stored in a memory element.
- the signal 130 is preferably transmitted using a SPaT-like protocol by the traffic light.
- the signal generating means are in that case embedded in an electronics module of the traffic light and comprise data transmission means for emitting the SpaT-like signal 130.
- an observation of the current queue draining time TQ ! , or the current length of the queue in front of the traffic light is obtained by using at least one traffic camera installed at or around the traffic light 10.
- the traffic camera comprises an image sensor linked to an image data processor for extracting visual information from the sensed image or video data.
- the image sensor and image data processor provide sensing means for obtaining the queue draining time and/or the queue lengths.
- the draining rate may be modelled according to observed data such as the actual speed of the automotive vehicles leaving the queue, wherein such data may also be obtained using the image sensor and an appropriately programmed image data processor. Based on previous observations of the queue length, which may be complemented by traffic flow statistics, the expected queue lengths of upcoming waiting queues forming at later times may also be obtained.
- an observation of the current queue draining time T Q I or the queue length is obtained by using dedicated traffic sensors that detect the passing of vehicles at the traffic light.
- sensors may for example comprise inductive loops embedded in the road and linked to a data processor.
- Another alternative for obtaining an observation of the current queue draining time T Q1 or the queue length is provided by way of one or more traffic information gathering nodes located in a communication network to which the signal generating means 120 have read access.
- Such known traffic information nodes implement services that aggregate publicly available traffic data, and they may be extended to use dedicated processing means to extract measurements of the queue draining times of each traffic lights. The resulting information is then either broadcast to all traffic lights or transmitted to a specific traffic light upon request.
- an observation of the current queue draining time T Q I is obtained by means of the automotive vehicles waiting in the queue.
- a vehicle passes the traffic light, it estimates whether it is the last vehicle of the current queue and sends the time it spent in the queue to a central entity or to the signal generating means 120.
- the communication originating at the automotive vehicle may be made using a VANET or a cellular data
- the central entity or signal generating means detect which vehicle was the last in the queue, for example based on imaging data.
- FIG 4 illustrates an exemplary extended SpaT-like signal 130 in accordance with a preferred embodiment the present invention, wherein at time t gl , a green phase starts.
- the traffic light changes to orange at time t ol and further to red at time and so on.
- the signal provides an indication of the time t ql at which the queue in front of the traffic light is expected to be empty.
- the signal is similarly extended with estimates of the lengths/durations of upcoming waiting queues in front of the traffic lights, which may be greater or equal to zero.
- a third automotive vehicle C3 approaches the traffic light 10 having queue Qi and expected queue draining time TQI.
- a speed computing device 140 obtains an estimate D of the distance separating the vehicle and the traffic light, and said signal 130 indicating the traffic light's phases a s a function of time, as well as, for example, the time period Ti during which the queue is expected to have cleared while the phase of the traffic light is green. Using these data, the speed computing device computes a target speed S t .
- the device may also compute the target speed S t using a later time period, for example T 2 , if the automotive vehicle C3 would not be able to reach the traffic light within period ⁇ .
- the knowledge of expected upcoming queue lengths may be used by the speed computing device to compute a reduced target speed, so as to arrive at the traffic light at a time when the queue is expected to be within a predetermined limit, thereby reducing C0 2 emissions of a thermal engine driven vehicle, or more generally the energy consumption of any vehicle.
- the resulting target speed is either communicated to the driver of the vehicle using audio or visual display means, or it may be fed to an onboard computing device of the vehicle, that is in charge of regulating the car's speed autonomously.
- the speed computing device 140 is shown as being onboard of vehicle C2, it may for example be a GPS device, a smartphone or an electronics module that is part of the vehicle's data infrastructure.
- the speed computing means may be implemented at a central computing node in a communication network, which has access to data D and signal 130, and which communicates with the vehicle using a VANET or using a cellular data communication channel.
- the distance D is preferably sensed at the vehicle C3 by appropriate distance sensing means, such as an onboard radar, for example.
- the distance may be provided by traffic sensors linked to a central computing entity or by the traffic light having appropriated sensing means.
- the distance information D is transmitted to the vehicle C3 using a VANET or using a cellular data communication channel. While numerous techniques may be used for computing the target speed S t , we provide here one preferred example, which is both simple and flexible, without limiting the scope of the invention thereto. Define:
- an aggressiveness parameter which can be set by the user and/or by the computation entity (e.g. via leveraging some information on the expected accuracy of t ql
- the recommended target speed for a vehicle to reach a traffic light when that light is green and passing may be one of the three following choices:
- FIG. 5 provides a schematic illustration of the main building blocks of a signal generating device 120 in accordance with a preferred embodiment of the invention, which is preferably embedded with a traffic light.
- the device comprises sensing means for obtaining an estimate of the time T Q1 required for the current queue in front of the traffic light to empty, once the light changes to green.
- the sensing means include for example an imaging sensor, an image processor and a data processor for computing said estimate based on past and current queue observations.
- the information TQI is stored in a memory element 126 for later use and encoded into a signal 130 indicating the traffic light's phases as a function of time and indicating at least one period ⁇ during which the traffic light is in a green phase and the waiting queue is expected to be empty.
- expected queue lengths may also be encoded into the signal 130.
- FIG. 6 provides a schematic illustration of the main building blocks of a speed computing device 140 in accordance with a preferred embodiment of the invention, which is preferably provided on board of an automotive vehicle.
- the device comprises data reception means 144 configured for the reception of the signal 130 as transmitted by the signal generating device 130.
- the data reception means 144 may comprise a networking interface and data processing means configured to extract the time and phase information included in said signal, so that it may be used by processing means 142.
- the device further comprises distance sensing means 146 for obtaining an estimate of the distance D separating the vehicle from the traffic light it approaches.
- the processing means 144 include a processor configured to compute the target speed S t of the vehicle as a function of the time interval Ti comprised in the received signal 130.
- the signal 130 comprises information on the evolution of the length of the waiting queue, that information may also be taken into account while computing the target speed S t of the vehicle.
- the resulting speed information is provided either to a display unit, a speech generating unit, or to an electronics module of the vehicle.
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Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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LU93392A LU93392B1 (en) | 2016-12-22 | 2016-12-22 | Method and system for enhanced traffic light signaling and for computing a target speed of an automotive vehicle |
PCT/EP2017/084535 WO2018115511A1 (en) | 2016-12-22 | 2017-12-22 | Method and system for enhanced traffic light signaling and for computing a target speed of an automotive vehicle |
Publications (2)
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EP3559927A1 true EP3559927A1 (en) | 2019-10-30 |
EP3559927B1 EP3559927B1 (en) | 2022-03-16 |
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EP17828922.9A Active EP3559927B1 (en) | 2016-12-22 | 2017-12-22 | Method and system for enhanced traffic light signaling and for computing a target speed of an automotive vehicle |
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EP (1) | EP3559927B1 (en) |
LU (1) | LU93392B1 (en) |
WO (1) | WO2018115511A1 (en) |
Cited By (1)
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CN113299080A (en) * | 2021-04-28 | 2021-08-24 | 东南大学 | Signal real-time optimization method based on intersection traffic state |
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GB2572448B (en) * | 2018-03-30 | 2021-02-03 | Jaguar Land Rover Ltd | Vehicle control method and apparatus |
SE1851025A1 (en) * | 2018-08-30 | 2020-03-01 | Scania Cv Ab | Method and control arrangement for calculating an appropriate vehicle speed |
CN111768613B (en) * | 2019-03-12 | 2021-11-09 | 北京嘀嘀无限科技发展有限公司 | Road function change determining method and device |
CN111724600A (en) * | 2020-06-30 | 2020-09-29 | 公安部交通管理科学研究所 | Real-time queuing length analysis method and system based on edge calculation |
CN113506442B (en) | 2021-09-10 | 2021-12-28 | 之江实验室 | Urban road network traffic signal lamp control method based on expected income estimation |
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DE102007043602A1 (en) * | 2007-09-13 | 2009-03-19 | Robert Bosch Gmbh | Method for adjusting the speed of a vehicle in front of a signal system and vehicle system |
DE102009042923A1 (en) * | 2009-09-24 | 2011-08-04 | Siemens Aktiengesellschaft, 80333 | Driver assistance system for motor vehicle for optimizing motion parameters of motor vehicle when approaching traffic signal system, has interface for acquisition of current motion parameters of motor vehicle |
JP5518257B2 (en) * | 2011-04-21 | 2014-06-11 | 三菱電機株式会社 | Driving support device |
FR3027109B1 (en) | 2014-10-08 | 2019-05-31 | Valeo Schalter Und Sensoren Gmbh | DETERMINING AN OPTIMUM SPEED FOR A MOTOR VEHICLE APPROACHING A TRICOLOR FIRE |
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2016
- 2016-12-22 LU LU93392A patent/LU93392B1/en active IP Right Grant
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2017
- 2017-12-22 EP EP17828922.9A patent/EP3559927B1/en active Active
- 2017-12-22 WO PCT/EP2017/084535 patent/WO2018115511A1/en unknown
Cited By (2)
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CN113299080A (en) * | 2021-04-28 | 2021-08-24 | 东南大学 | Signal real-time optimization method based on intersection traffic state |
CN113299080B (en) * | 2021-04-28 | 2021-12-21 | 东南大学 | Signal real-time optimization method based on intersection traffic state |
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WO2018115511A1 (en) | 2018-06-28 |
EP3559927B1 (en) | 2022-03-16 |
LU93392B1 (en) | 2018-06-22 |
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