EP4309165A1 - Système pour donner une priorité à un véhicule spécial au niveau de noeuds régulés par des feux de circulation dans un réseau routier - Google Patents

Système pour donner une priorité à un véhicule spécial au niveau de noeuds régulés par des feux de circulation dans un réseau routier

Info

Publication number
EP4309165A1
EP4309165A1 EP22710518.6A EP22710518A EP4309165A1 EP 4309165 A1 EP4309165 A1 EP 4309165A1 EP 22710518 A EP22710518 A EP 22710518A EP 4309165 A1 EP4309165 A1 EP 4309165A1
Authority
EP
European Patent Office
Prior art keywords
special vehicle
reporting
designed
points
request message
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
Application number
EP22710518.6A
Other languages
German (de)
English (en)
Inventor
Michael Sax
Roland Wunder
Gernot Zimmermann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yunex GmbH
Original Assignee
Yunex GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yunex GmbH filed Critical Yunex GmbH
Publication of EP4309165A1 publication Critical patent/EP4309165A1/fr
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/07—Controlling traffic signals
    • G08G1/087—Override of traffic control, e.g. by signal transmitted by an emergency vehicle
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/09—Arrangements for giving variable traffic instructions
    • G08G1/096—Arrangements for giving variable traffic instructions provided with indicators in which a mark progresses showing the time elapsed, e.g. of green phase
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/029—Location-based management or tracking services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/44—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]

Definitions

  • the invention relates to a system for prioritizing a special vehicle at intersections of a road network controlled by traffic signals
  • the published application DE 102008 041 091 A1 describes a priority request system for emergency vehicles at an intersection controlled by a traffic light system.
  • each entrance area of the intersection has a separate reporting area that extends over the full width of the roadway to the center of the intersection.
  • the emergency vehicles are equipped with a GPS receiver to determine the location coordinates and a computer to determine the direction of travel of the emergency vehicle.
  • the computing device compares the location coordinates of the emergency vehicle with the reporting area stored in the reporting area memory. If it is recognized that the emergency vehicle is in the reporting area, the code output assigned to the reporting area is switched and a transmitter is keyed as a result.
  • the traffic light system contains a receiver assembly that works in the ISM frequency range (IMS stands for Industrial, Scientific and Me- dical) works.
  • the receiving assembly receives the switching commands from the emergency vehicle's transmission assembly, which encodes the signals and forwards the commands to a signaling system control unit.
  • the control unit includes traffic-related programming that includes up to four special phases.
  • the system is also applicable to public transport, for example to prioritize a bus or the like.
  • a system of the type mentioned above is known from the product publication "Satellite-supported prioritization Sitraffic Stream, priority for public transport", published in 2014 by Siemens AG, order no. A19100-V350-B170 installed, which have signal transmitters for issuing release and blocking signals to road users and control units for activating the signal transmitters according to a signal program
  • the signal sequences and the signal times of the signal program can be influenced within certain limits, so that when a release request is received, the requested release signal can be issued as soon as possible g connected, which is designed to receive a request message via a cellular mobile network and to transmit a release request to the control unit of the node to be traversed by the special vehicle.
  • the special vehicle carries an on-board unit with a storage unit for overwritable storage of reporting points assigned to the junction points, with a locating unit for continuously determining the current position of the special vehicle, with a computing unit for determining when the special vehicle has passed a reporting point and with a communication unit.
  • the communication unit is designed to issue a request when it is determined that a reporting point has been passed to generate a message for sending via the cellular mobile network and to send the request message generated via the cellular mobile network to the traffic control center.
  • Patent specification DE 102016 105 558 B3 discloses a method for influencing a traffic control system, which includes a traffic control computer that controls a large number of variable light signal systems in a traffic route network for the purpose of priority control for at least one emergency vehicle with right of way. Position data of a destination, current position data and data of the current direction vector of the emergency vehicle are provided. A route for the emergency vehicle is then predicted from its current position to the position of the destination, taking into account the direction of travel represented by the direction of travel vector and selected by the driver of the emergency vehicle.
  • the alternating light sign systems relating to a predicted direction of travel on the predicted route are influenced in such a way that the respective alternating light sign system releases traffic in the direction of the predicted route before or at the predicted arrival of the at least one emergency vehicle.
  • Additional alternating light signal systems in the vicinity of the alternating light signal systems in front of the emergency vehicle are switched in such a way that vehicles located in a travel corridor for the emergency vehicle on the lane of the predicted route can leave the travel corridor and no vehicles can enter the travel corridor until at least an emergency vehicle reaches this location.
  • the invention is therefore based on the object of providing a priority authorization system for special vehicles which can be used more flexibly.
  • the generic prioritization system additionally comprises at least some of the nodes in each case a communication device connected to the control device for data transmission and arranged on the roadside of the respective node.
  • the communication device is designed to receive a request message via a wireless local area network and to transmit a release request to the control device.
  • the communication unit carried in the special vehicle is also designed to generate a request message for sending via the local radio network when a reporting point has been passed and to send the generated request message via the local radio network to the communication device of the node to be traversed.
  • This provides a digital hybrid system for priority, which enables a special vehicle to request a release signal both at nodes with an assigned communication device via a local radio network and at nodes without an assigned communication device via the traffic computer center via a cellular mobile network.
  • the locating unit of the vehicle device carried on board the special vehicle can be designed as a reception module of a global satellite-supported navigation system in order to continuously determine the position of the special vehicle.
  • request messages are generated both for sending via the cellular mobile radio network and via a local radio network.
  • the communication unit of the vehicle device is designed to send a generated request message both via the cellular mobile radio network and via the local radio network.
  • the vehicle device is designed to determine a reporting point passage locally in the special vehicle through the interaction of its computing unit with the locating unit and the memory unit. As a result, in contrast to known methods, a continuous transmission of current location and travel directions to a central location is avoided.
  • the request message is transmitted in real time via the communication unit of the vehicle device to the traffic control center or to the communication device of the node.
  • the release request is transmitted from the traffic computer center to the control unit of the traffic signal system to be influenced via the existing communication channels between the traffic computer center and the connected control units
  • the priority system flexibly covers the possibilities of local and central prioritization of special vehicles - depending on whether a roadside communication device is assigned to a node or not.
  • the communication unit is designed to generate a request message for sending via a cellular mobile radio network according to a mobile radio standard of the 3G or 4G or 5G generation.
  • a mobile radio standard of the 3G or 4G or 5G generation Compared to a 2G generation mobile radio standard (54 kbit/s in the GPRS standard), the maximum bandwidths for data transmission of a request message from the 3G generation (384 kbit/s in the UMTS standard) to 4G (150 Mbit/s in the LTE standard) to 5G (10 Gbit/s in the 5G standard).
  • the communication unit is designed to generate a request message for sending via a wireless local area network according to a WiFi or ITS-G5 standard.
  • a WiFi or ITS-G5 standard Operating in the 5 GHz frequency band, the ITS-G5 standard offers dedicated short-range communication based on the IEEE 802.1lp standard.
  • the aim of this radio standard are mainly applications in the field of cooperative intelligent transport systems.
  • a request message for sending via the C V2X technology C-V2X stands for Cellular Vehicle-to-Everything.
  • WLAN networks mobile radio networks are used here for direct communication between the communication unit of the vehicle device and the roadside communication device.
  • the communication unit has a so-called PC5 interface for direct communication with the infrastructure and other vehicles; In addition, it can have a so-called Uu interface for regular communication with the base station of a cellular mobile radio network.
  • C-V2X was originally defined as LTE version 14 of the 3G Project Partnership for vehicle-to-vehicle, infrastructure and cellular network communication applications. With version 16, the functionality has been expanded to support the 5G standard.
  • the communication unit is designed to generate a request message with vehicle data identifying the special vehicle and/or with reporting point data identifying the reporting point passed and/or with time data identifying the time of passage.
  • Request messages sent out by the communication unit of a vehicle device contain information in their telegram data as to which special vehicle passed which reporting point at which point in time. With this information, a release signal can be requested at the control unit of the junction to be crossed by the special vehicle in the traffic computer center and/or in the communication device assigned to a junction.
  • the reporting points stored in the memory unit are each defined by their location coordinates on a node arm leading to the node to be traversed and by a catch line running transversely to this node arm. Because a reporting point is not only identified by its location coordinates on the node ten points, but is additionally defined by a capture line, reporting point passages can be determined more reliably.
  • the catch line assigned to the reporting point is characterized by its alignment transversely to the junction arm, so that the determination algorithm for a reporting point passage can take into account the direction in which the special vehicle passed the catch line. This is crucial when different special vehicles typically pass a reporting point in different directions of travel, but a request message is only to be triggered for special vehicles in a specific direction of travel.
  • the processing unit is designed to determine that the special vehicle has passed a reporting point if a travel trajectory formed by continuously connecting specific local positions of the special vehicle intersects the catch line of the reporting point.
  • the recognition of an intersection point and intersection angle between the travel trajectory of the special vehicle and the detection line of a reporting point is easy to implement algorithmically in the computing unit.
  • a detection point passage is deemed to have been established when an intersection is detected and the intersection angle is within a parameterizable tolerance range of 90°.
  • pre-registration points upstream of the respective reporting points and logout points downstream of the respective reporting points are stored in the storage unit.
  • the on-board unit can successively determine the passage of three reporting points on the route of a special vehicle when crossing a junction.
  • a request report can be made when passing the upstream pre-registration point are generated and transmitted, which initiates a change in the signal program from normal operation to prioritization operation in the control unit.
  • the release signal is requested as described above. If the special vehicle then passes the check-out point assigned to this route after crossing the junction, a request message is generated and sent out, which causes the control unit to switch from prioritization mode back to normal mode.
  • the central traffic computer is designed to define and update reporting points and possibly pre-registration points and deregistration points centrally for the nodes and to transmit them to the driving tool of the special vehicle.
  • the programming of the reporting points in the traffic computer center can be carried out according to planning specifications and then automatically transmitted to all on-board devices of the special vehicles by radio.
  • newly added reporting points can be added, existing reporting points updated or obsolete reporting points deleted without the user of a special vehicle having to take any special action.
  • the database of the reporting points can be kept up-to-date in the vehicle devices of all special vehicles operating in a road network.
  • software for the central setup, maintenance and monitoring of reporting points is provided in the traffic computer center.
  • the control unit is designed to transmit a prioritization confirmation and/or the current signal status and/or a remaining time forecast until the signal status changes to the vehicle device via the communication device arranged on the roadside.
  • the prioritization via the local radio network allows the reception of signal states, prognosis information and prioritization feedback in real time via the inventive appropriate prioritization system without having to rely on a mobile phone connection to the traffic computer center. This increases driving comfort and the safety of a user driving the special vehicle.
  • the traffic computer center is designed to calculate the effectiveness of the prioritization from the time data of the passage times of the special vehicle from pre-registration, registration and deregistration points.
  • the prioritization system thus includes an independent quality management function, which can be used to illustrate the effectiveness of the prioritization, particularly in the area of junctions, by means of a diagrammatic representation.
  • a priority system 1 for prioritizing a special vehicle 2 is set up and provided at a traffic signal-controlled node K of a particular inner-city road network.
  • a traffic signal-controlled node K of a particular inner-city road network.
  • a traffic light system 30 is installed at junction K for traffic control of competing traffic flows.
  • the light signal system 30 comprises signal transmitters 31 for emitting release and blocking signals for road users in the form of switchable light signals.
  • the signal transmitters 31 are controlled according to a signal program running in a control unit 32 of the light signal system 30, which can switch between normal operation and prioritization operation.
  • the change from normal operation in a prioritization mode is triggered by receipt of a release request MG in the control unit 32 for a specific route via the node K.
  • the special vehicle 2 is, for example, a local public transport bus that is approaching the junction K on the approach to the junction arm Kl and will leave the junction K according to its bus route on the departure of the junction arm K3, then the signal transmitters 31 are switched in such a way in prioritization mode controlled so that a release signal is switched on for this route and a blocking signal is switched on for cross traffic.
  • a release request MG can be transmitted to control unit 32 in two different ways. If the node K to be traversed by the special vehicle 2 is assigned a communication device 40 which is arranged on the roadside and is connected to the control unit 32 for data transmission, the release request MG can be transmitted by the communication device 40 .
  • the communication device 40 is what is known as a roadside unit (RSU) for what is known as vehicle-to-infrastructure communication (V2I). If no such communication device 40 is assigned to the node K, the release request MG can be transmitted by a traffic computer center 50 of the road network.
  • the traffic computer center 50 is a central traffic computer that coordinates the traffic signal systems 30 in the road network and is connected to the control units 31 for data transmission.
  • the special vehicle 2 carries a vehicle device 20 - a so-called onboard unit (OBU) - which is used to generate and transmit a request message MD both to the traffic computer center 50 and to a road side communication device 40 is formed.
  • the vehicle device 20 comprises a communication unit 21, which, according to the invention, sends a generated request message MD both via a cellular mobile radio network NC to the traffic computer center 50 and via a local radio network NL to a roadside communication device 40 can send.
  • the communication unit 21 is designed to generate a request message MD in accordance with the mobile radio standard supported by the cellular mobile radio network NC, preferably a mobile radio standard of the 3G or 4G or 5G generation.
  • the traffic computer center 50 is designed to receive such request messages MD.
  • the communication unit 21 is also designed to generate a request message MD for a radio local area network NL according to a WiFi or ITS-G5 standard. Accordingly, the communication device 40 is set up to receive such request messages MD.
  • a hybrid communication on method for request messages MD is provided, depending on the infrastructure of a node K, a release request MG via a roadside communication on worn 40 or a traffic computer center 50 can trigger.
  • the communication unit 21 can advantageously be designed to generate a request message MD for sending via the C-V2X technology.
  • it has a first interface, the so-called PC5 interface, for direct local radio communication NL to the roadside communication device 40 and a second interface, the so-called Uu interface, for network-based communication via the cellular mobile radio networks NC.
  • a request message MD is generated automatically when the special vehicle 2 passes a predefined reporting point PI assigned to the node K.
  • the vehicle device 20 includes a memory unit 22 in which the reporting points PI are stored.
  • a reporting point PI is defined by its location coordinates on the node arm Kl leading to the node K to be traversed and by a catch line Fl running transversely to this node arm Kl.
  • the catch line Fl is transverse to the direction of travel on the node arm Kl.
  • the vehicle device 20 includes a than GPS receiver-trained locating unit 23 for the ongoing determination of the current position ..., Tn-2, Tn-1, Tn of the special vehicle 2.
  • the vehicle device 20 also includes a computing unit 24, which determines whether a connection ongoing certain local positions ..., Tn-2, Tn-1, Tn formed travel trajectory T of the special vehicle 2 intersects the catch line Fl of the reporting point PI.
  • a passage of the reporting point PI is to be determined, since the travel trajectory T of the special vehicle 2 is the catch line Fl between the local positions Tn-1 and Tn.
  • the intersection angle between the travel trajectory T and catch line Fl can be determined. Due to the orientation of the catch line Fl transverse to the direction of travel on the node arm Kl, this should be 90°, taking into account a deviation tolerance. The triggering of a request message MD for vehicles that do not pass the catch line in the intended direction of travel can thus be suppressed.
  • the request message MD generated by the communication unit 21 can have vehicle data identifying the special vehicle 2, such as a bus line, and/or the reporting point data identifying the reporting point that has passed, such as its location coordinates, and/or the time data identifying the time of passage.
  • vehicle data identifying the special vehicle 2 such as a bus line
  • reporting point data identifying the reporting point that has passed such as its location coordinates
  • time data identifying the time of passage can then be transmitted via the roadside communication device 40 or via the traffic computer center 50 to the control device 32 of the node K to be traversed.
  • a pre-registration point PO upstream of the reporting point PI and a de-registration point P2 downstream of the reporting point PI can be stored in the storage unit 22 with associated capture lines F0 and F2.
  • the arithmetic unit 24 can, analogously to a reporting point passage, a passage of the special vehicle 2 at the pre-registration point PO and at the de-registration point P2 determine, the communication unit 21 generates and sends each to request messages MD.
  • a request message MD is sent, based on which the traffic computer center 50 or the communication device 20 transmits a change request to the control unit 32 in order to effect a change in the running signal program from normal operation to a prioritization operation.
  • the preferential release signal is then switched on as soon as the special vehicle 2 passes the reporting point PI, also called the main registration point, and requests it.
  • the distances between the pre-registration point PO, the main registration point PI and a stop line at junction K are calculated in such a way that when special vehicle 2 is traveling at an average speed, the signal program change is complete by the time the main registration point PI is reached and the release signal is switched on until the stop line is reached further, so that the special vehicle 2 can pass the node K without stopping.
  • a request message MD is sent, on the basis of which the traffic computer center 50 or the communication device 20 transmits a change-back request to the control unit 32 in order to cause a change in the running signal program from prioritization operation back to its normal operation.
  • the traffic computer center 50 is designed to define and update reporting points PI and pre-registration points PO and deregistration points P2 centrally for the routes via a node K and to transmit them to the vehicle device 20 of the special vehicle 2 via the cellular mobile network NC.
  • the reporting points PO, PI, P2 are stored in the memory unit 22 of the vehicle device 20 so that they can be overwritten.
  • control unit 32 can transmit prioritization confirmations and/or the current signal status of signal transmitter 31 and/or a remaining time forecast until the next change in the signal status to vehicle device 20.
  • the traffic computer center 50 is also designed to calculate an effectiveness of the prioritization from the time data of the passage times of the special vehicle 2 from pre-registration, main registration and deregistration points and to display this to the operator of the traffic center 50 diagrammatically, for example.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Traffic Control Systems (AREA)

Abstract

La présente invention concerne un système (1) pour donner une priorité à un véhicule spécial (2) au niveau de nœuds régulés par des feux de circulation (K) dans un réseau routier. Ledit système comprend des feux de circulation (30) installés au niveau des nœuds (K), avec des émetteurs de signaux (31) pour émettre des signaux de feu vert et des signaux de feu rouge et avec des unités de commande (32) pour commander les émetteurs de signaux (31) en fonction d'un programme de signaux influençable par des requêtes de feu vert (MG). Un dispositif de véhicule (20) transporté dans le véhicule spécial (2) comprend une unité de mémoire (22) pour stocker de manière excessive des points de rapport (P1) associés aux nœuds (K), une unité de positionnement (24) pour déterminer en continu la position locale actuelle (Tn-2, Tn-1, Tn) du véhicule spécial (2), une unité de calcul (23) pour détecter le passage à travers un point de rapport (P1) par le véhicule spécial (2), et une unité de communication (21) conçue de manière à, lorsque le passage à travers un point de rapport (P1) est détecté, générer un message de requête (MD) et envoyer ce dernier à un centre informatique de trafic (50) du réseau routier par l'intermédiaire d'un réseau radio mobile cellulaire (MC) et/ou à un dispositif de communication (40) du nœud (K) à franchir au moyen d'un réseau radio local (NL). Ceci permet d'obtenir un système de priorisation utilisable de manière flexible pour des véhicules spéciaux.
EP22710518.6A 2021-03-17 2022-02-17 Système pour donner une priorité à un véhicule spécial au niveau de noeuds régulés par des feux de circulation dans un réseau routier Pending EP4309165A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021202594.3A DE102021202594A1 (de) 2021-03-17 2021-03-17 System zur Bevorrechtigung eines Sonderfahrzeugs an lichtsignalgesteuerten Knotenpunkten eines Straßennetzes
PCT/EP2022/053902 WO2022194479A1 (fr) 2021-03-17 2022-02-17 Système pour donner une priorité à un véhicule spécial au niveau de nœuds régulés par des feux de circulation dans un réseau routier

Publications (1)

Publication Number Publication Date
EP4309165A1 true EP4309165A1 (fr) 2024-01-24

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP22710518.6A Pending EP4309165A1 (fr) 2021-03-17 2022-02-17 Système pour donner une priorité à un véhicule spécial au niveau de noeuds régulés par des feux de circulation dans un réseau routier

Country Status (3)

Country Link
EP (1) EP4309165A1 (fr)
DE (1) DE102021202594A1 (fr)
WO (1) WO2022194479A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116386359A (zh) * 2022-11-23 2023-07-04 郑州信大捷安信息技术股份有限公司 一种基于v2i的单行道优先通行系统及方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19842912B4 (de) 1998-09-18 2005-02-03 Greenway Systeme Gmbh Verfahren zur Fahrwegfreischaltung für Einsatzfahrzeuge mit Sonderbefugnissen unter Nutzung des GPS-Systems und Steuereinrichtung zur Durchführung des Verfahrens
DE102008041091B4 (de) 2008-08-07 2011-08-25 SWARCO Traffic Systems GmbH, 72669 Prioritätsanforderungssystem für Einsatzfahrzeuge
DE102010008852B4 (de) 2010-01-04 2011-09-01 Init Innovative Informatikanwendungen In Transport-, Verkehrs- Und Leitsystemen Gmbh Verfahren, Auswerterechner und Bordcomputer zur Beeinflussung einer Lichtsignalanlage
WO2015024964A2 (fr) 2013-08-23 2015-02-26 Siemens Aktiengesellschaft Système de détermination d'informations de trafic
EP3151214A1 (fr) * 2015-09-30 2017-04-05 Siemens Aktiengesellschaft Systeme de priorisation d'un utilisateur de reseau routier, en particulier d'un cycliste, sur un point de noeud commande par signal lumineux
DE102016105558B3 (de) 2016-03-24 2017-05-11 Ludwig Trostel Verfahren und Vorrichtung zur Beeinflussung eines Verkehrsleitsystems
US11164128B2 (en) 2018-04-27 2021-11-02 Cubic Corporation Optimizing emergency services logistics using data from a smart traffic control system

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WO2022194479A1 (fr) 2022-09-22
DE102021202594A1 (de) 2022-09-22

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