WO2013045714A1 - Traffic control device - Google Patents

Traffic control device Download PDF

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Publication number
WO2013045714A1
WO2013045714A1 PCT/ES2011/070669 ES2011070669W WO2013045714A1 WO 2013045714 A1 WO2013045714 A1 WO 2013045714A1 ES 2011070669 W ES2011070669 W ES 2011070669W WO 2013045714 A1 WO2013045714 A1 WO 2013045714A1
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WO
WIPO (PCT)
Prior art keywords
traffic
data processor
infraction
switchable
detector
Prior art date
Application number
PCT/ES2011/070669
Other languages
Spanish (es)
French (fr)
Inventor
Luis Miguel LÓPEZ MARTÍNEZ
Rubén FUENTE CUBO
Ricardo HERRANZ JIMÉNEZ
José Luis MAUPOEY FABUEL
Original Assignee
Unitronics Comunicaciones, S.A.
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.)
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Publication date
Application filed by Unitronics Comunicaciones, S.A. filed Critical Unitronics Comunicaciones, S.A.
Priority to PCT/ES2011/070669 priority Critical patent/WO2013045714A1/en
Publication of WO2013045714A1 publication Critical patent/WO2013045714A1/en

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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
    • G08G1/017—Detecting movement of traffic to be counted or controlled identifying vehicles
    • G08G1/0175—Detecting movement of traffic to be counted or controlled identifying vehicles by photographing vehicles, e.g. when violating traffic rules
    • 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

Definitions

  • the present invention relates to a traffic controller device and, more particularly, to a vehicle passing monitoring device by a switchable traffic signal.
  • Switchable traffic signals such as traffic lights are intended to order the passage of vehicles on public roads, for example, a crossing of public roads.
  • Switchable traffic signals such as traffic lights are intended to order the passage of vehicles on public roads, for example, a crossing of public roads.
  • the surveillance camera system begins to capture images when a detector device such as an inductive loop, connected to the cameras, detects the presence or movement of a vehicle in an area not allowed in relation to the current switching state of the switchable traffic signal, for example, red traffic light.
  • a detector device such as an inductive loop
  • the camera system is activated from the information supplied by the fixed detector loop embedded within the roadway pavement in the vicinity of the switchable traffic signal located within a controlled traffic zone. It should be noted that the operation of inductive loops implies expensive maintenance.
  • the camera system Once the camera system has been activated, it captures images of the passage of vehicles at the height of the switchable traffic signal, at which time the vehicle that activated the camera system is breaking traffic regulations.
  • the infrared detection camera system described has a drawback derived from the need to have a fixed loop detector installed within the roadway of the public thoroughfare, and the system loses the deterrent effect of behaviors against traffic rules, which are pursued by the authorities that install the surveillance system, since the location of it being known and not being able to vary or move said system to other traffic signals, repeat infringing vehicles change their behavior to comply with traffic regulations. traffic in the area where the control system and the loop detector is installed and, outside of that zone, violate traffic regulations.
  • the system for detecting infractions as a whole is exposed to acts of vandalism consisting, for example, of deactivating fixed detection devices.
  • the present invention seeks to solve one or more of the drawbacks set forth above by means of a traffic controller device as claimed in the claims.
  • An object of the traffic control device is to identify vehicles that violate traffic regulations by combining different cameras continuously capturing images of a traffic zone to be controlled regulated by a switchable traffic signal, a detector device that supplies a virtual infraction line, a traffic signal switching status detector, a data processor adapted to read or identify vehicle records or license plates and a communications interface that communicates via radio with a traffic management center.
  • Yet another object of the traffic controller device is to be supplied in a single portable container that is easy to install and uninstall from a traffic location to be controlled. This facilitates the movement of the controller device to other possible locations, forcing potential infringing vehicles to comply with traffic regulations and, thus, road safety is increased.
  • Still another object of the traffic controller device is to detect the switching state of a switchable traffic signal without having a direct connection with it.
  • Another object of the traffic controller device is to use an infraction detector assembled within the portable container of the traffic controller device. Therefore, the traffic control device makes it possible to dispense with a physical detector embedded within a road suitable for vehicle traffic and for direct connection to the switchable traffic signal.
  • Still another object of the controlling device is to continuously capture images of the target traffic zone to be controlled and of the switchable traffic signal located in the same traffic zone.
  • Figure 1 shows in a schematic view a traffic controller device installed in a support structure located in a traffic zone controlled by a switchable traffic signal.
  • the traffic control device 1 1 comprises a plurality of B / W black and white cameras 12 adapted to continuously capture images of vehicles 16 circulating in a traffic zone regulated by a switchable traffic signal 15, a traffic detector infraction adapted to provide a virtual infraction detection line, a switching state detector of the switchable traffic signal comprising a configurable color camera to continuously capture images of the switched traffic signal 15, a data processor 13 that executes an algorithm for reading records or license plates and a communications interface that communicates via radio with a traffic management center 14.
  • the height and position of the controller 1 1 device is selected to allow an optimal field of view of the traffic zone to be controlled. Also, some of the cameras 12 can be installed outside the container 1 1 of the controller device in order to have an optimal field of view of the traffic zone to be controlled.
  • the controller device 1 1 is configured to be mechanically fixed to a support structure such as a lamppost located at a predetermined distance of the switchable traffic signal 15, facilitating the implementation and deployment of the controller device as much as the installation of dedicated poles or staff.
  • B / W cameras 12 continuously capture images of vehicles 15 that move through the traffic zone controlled by the controller device.
  • the captured B / W images are transmitted to the data processor 13 that executes an identification algorithm of a vehicle registration or registration plate 16 that has been displaced while the switchable traffic signal 15 is in the switching state corresponding to the arrest of vehicles, that is, a red light.
  • the images captured by the status detector are in turn transmitted to the data processor 13 that executes an artificial vision algorithm to determine whether the switching state of the traffic signal corresponds to the red light, that is, the traffic controller device does not require a direct physical connection to traffic light 15 to determine the current state of switching, traffic light in red, amber and / or green.
  • the data processor 13 determines the switching status of the switchable traffic signal from the images captured by the color camera of the status detector.
  • the infraction detector is configured to insert into the images received by the data processor from the B / W camera, a virtual infraction line from which the data processor 13 is able to determine whether a vehicle The stop line of the switchable traffic signal is exceeded when it emits an additive switching signal corresponding to a red light. [0026] Therefore, the infraction detector defines a virtual infraction line in the field of view of the image captured by the B&W camera.
  • the images captured by the different cameras are stored in a mass storage device such as an intermediate memory, so that in response to a request message issued by the data processor 13, the intermediate memory transmits the requested stored images by the data processor.
  • the controller device 1 1 does not comprise an infrared trigger element, that is, the data processor continuously receives images captured by the B / W camera and the switching status detector and is adapted therefrom to determine If any vehicle has breached traffic regulations.
  • the processor 13 correlates between the images captured by the B / W camera and the images captured by the color camera of the switching status detector in the event that the color of the switchable traffic signal 15 corresponds at red light.
  • the data processor 13 determines that the traffic light 15 is in its red switching state, it initiates a vehicle detection process 16 that exceeds the virtual infraction line inserted in a B / W image captured and received by it. If the result of the previous step is affirmative, it initiates a stage of identification of the registration of the offending vehicle.
  • the data processor 13 determines that a vehicle 16 has exceeded the virtual infraction line when it detects a change in gray scale on the other side of the virtual infraction line inserted in a B / W image and, in addition, a license plate is detected in the area that has undergone the change
  • the data processor 13 recovers from the buffer a set of previous images corresponding to the field of view that monitors the color camera where the offending vehicle 16 has been detected to attach them with images captured after the infraction By the same color camera.
  • the color camera in addition to seeing the state of the traffic light, is the one that offers the previous images of the vehicle before entering the line of virtual infringement and subsequent to the passage of the car through said line.
  • the B / W camera is used to know that the car is on the other side of the infraction line when the color camera detects the switching state in red.
  • the images of both types of cameras are correlated.
  • the 1 1 traffic controller device receives no signal associated with the detection of a traffic violation, once the 1 1 controller device has been installed and activated, it begins to continuously capture images corresponding to the target traffic area of control.
  • the traffic control device 1 1 performs an uninterrupted capture of images corresponding to the target control zone, in advance of an infraction, that is, it performs a preventive image capture.
  • the buffer and the data processor 13 cooperate to record and determine if an infringement event has been performed by a vehicle 16 when the switchable traffic signal 15 was switched to its active or red switching state.
  • both the time in which the traffic signal 15 must be switched to red and the time that must remain before it switches back to green can be parameterized. In order to detect infringing vehicles only in that interval. This avoids detecting infringing vehicles just when the traffic signal has been switched to red or a moment before it turns to green.
  • the data processor 13 generates a sequence of color images before and after the detection of an infraction that is transmitted through the radio interface of the controller device to a traffic management center 14.
  • the communication interface can use a 3G type communication protocol.
  • One of the transmitted images comprises the offending vehicle 16 that has completely exceeded the virtual infraction line with the red light. Therefore, the area of interest to be controlled is that corresponding to the position of the vehicle before and after the traffic light line.
  • the data processor 13 also records a series of data for each captured image. These include the date, time and location of the capture and the Identification of the cameras that have intervened in the detection of the infraction. All this data is also transmitted to the traffic management center.
  • the data processor is programmed to order the deletion of the images captured and stored in the buffer memory, once it has been determined that there has been no violation of traffic regulations and / or a message has been sent including information associated with an infringement event detected at the traffic management center 14.
  • the data processor 13 is adapted to send the detected violations to the buffer for storage when there is no communication with the management center. Once the communication is recovered, the stored infractions are transmitted to the management center.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Traffic Control Systems (AREA)

Abstract

A traffic control device (11) which identifies vehicles (16) violating traffic rules within a traffic area controlled by a switchable traffic signal (15) by means of the combined use of different cameras (12) for continuously capturing images of the traffic area to be controlled, a detector device which supplies a virtual violation line, a detector for detecting the switching state of the traffic signal, a data processor (13) for reading or identifying vehicle registrations or licence plates and a communication interface which communicates with a traffic management centre (14) via radio.

Description

DISPOSITIVO CONTROLADOR DE TRÁFICO  TRAFFIC CONTROLLER DEVICE
OBJETO OBJECT
[0001] La presente invención se refiere a un dispositivo controlador de tráfico y, más particularmente, a un dispositivo de vigilancia del paso de vehículos por una señal de tráfico conmutable. [0001] The present invention relates to a traffic controller device and, more particularly, to a vehicle passing monitoring device by a switchable traffic signal.
ESTADO DE LA TÉCNICA STATE OF THE TECHNIQUE
[0002] Las señales de tráfico conmutables tal como semáforos tienen por objeto ordenar el paso de vehículos por las vías públicas, por ejemplo, un cruce de vías públicas. [0003] Es conocido en el estado de la técnica la instalación de sistemas de cámaras de vigilancia para capturar imágenes de vehículos que se desplazan cuando la señal de tráfico conmutable está emitiendo una señal activa de detención de vehículos. [0002] Switchable traffic signals such as traffic lights are intended to order the passage of vehicles on public roads, for example, a crossing of public roads. [0003] It is known in the state of the art the installation of surveillance camera systems to capture images of vehicles moving when the switchable traffic signal is emitting an active vehicle stop signal.
[0004] El sistema de cámaras de vigilancia empieza a capturar imágenes cuando un dispositivo detector tal como un bucle inductivo, conectado a las cámaras, detecta la presencia o un movimiento de un vehículo en una zona no permitida en relación con el estado de conmutación actual de la señal de tráfico conmutable, por ejemplo, semáforo en rojo. [0004] The surveillance camera system begins to capture images when a detector device such as an inductive loop, connected to the cameras, detects the presence or movement of a vehicle in an area not allowed in relation to the current switching state of the switchable traffic signal, for example, red traffic light.
[0005] Es decir, el sistema de cámaras es activado a partir de la información suministrada por el bucle detector fijo embebido dentro del pavimento de la calzada en la proximidad de la señal de tráfico conmutable ubicada dentro de una zona de tráfico controlada. Se ha de observar que el funcionamiento de los bucles inductivos implica un mantenimiento caro. [0005] That is, the camera system is activated from the information supplied by the fixed detector loop embedded within the roadway pavement in the vicinity of the switchable traffic signal located within a controlled traffic zone. It should be noted that the operation of inductive loops implies expensive maintenance.
[0006] Una vez que el sistema de cámaras ha sido activado, captura imágenes del paso de vehículos a la altura de la señal de tráfico conmutable, en ese instante el vehículo que ha activado el sistema de cámaras está incumpliendo las normas de tráfico. [0006] Once the camera system has been activated, it captures images of the passage of vehicles at the height of the switchable traffic signal, at which time the vehicle that activated the camera system is breaking traffic regulations.
[0007] A partir de las imágenes capturadas por el sistema de cámaras es posible identificar o leer el registro o placa de matrícula del vehículo infractor para la posterior identificación del propietario del vehículo. [0008] El sistema de cámaras de detección de infracciones descrito tiene un inconveniente derivado de la necesidad de disponer de un detector de bucle fijo instalado dentro de la calzada de la vía pública, y es que el sistema pierde el efecto disuasorio de comportamientos contra las normas de tráfico, que persiguen las autoridades que instalan el sistema de vigilancia, ya que al ser conocida la localización del mismo y no poder variarse o moverse dicho sistema a otras señales de tráfico, los vehículos infractores reincidentes cambian su comportamiento para cumplir las normas de tráfico en la zona donde está instalado el sistema de control y el detector de bucle y, fuera de dicha zona, incumplen las normas de tráfico. Además, el sistema de detección de infracciones en conjunto está expuesto a actos de vandalismo consistentes, por ejemplo, en desactivar los dispositivos detectores fijos. [0007] From the images captured by the camera system it is possible to identify or read the registration or registration plate of the offending vehicle for the subsequent identification of the vehicle owner. [0008] The infrared detection camera system described has a drawback derived from the need to have a fixed loop detector installed within the roadway of the public thoroughfare, and the system loses the deterrent effect of behaviors against traffic rules, which are pursued by the authorities that install the surveillance system, since the location of it being known and not being able to vary or move said system to other traffic signals, repeat infringing vehicles change their behavior to comply with traffic regulations. traffic in the area where the control system and the loop detector is installed and, outside of that zone, violate traffic regulations. In addition, the system for detecting infractions as a whole is exposed to acts of vandalism consisting, for example, of deactivating fixed detection devices.
SUMARIO SUMMARY
[0009] La presente invención busca resolver uno o más de los inconvenientes expuestos anteriormente mediante un dispositivo controlador de tráfico como es reivindicado en las reivindicaciones. [0009] The present invention seeks to solve one or more of the drawbacks set forth above by means of a traffic controller device as claimed in the claims.
[0010] Un objeto del dispositivo controlador de tráfico es identificar vehículos infractores de normas de tráfico mediante el uso combinado de diferentes cámaras de captura continua de imágenes de una zona de tráfico a controlar regulada por una señal de tráfico conmutable, un dispositivo detector que suministra una línea de infracción virtual, un detector del estado de conmutación de la señal de tráfico, un procesador de datos adaptado para leer o identificar registros o placas de vehículos y una interfaz de comunicaciones que se comunica vía radio con un centro de gestión de tráfico. [0011] Aún otro objeto del dispositivo controlador de tráfico es ser suministrado en un único contenedor portable fácil de instalar y desinstalar de una ubicación de tráfico que se desea controlar. De este modo se facilita el movimiento del dispositivo controlador a otras ubicaciones posibles, forzando a los potenciales vehículos infractores a cumplir las normas de tráfico y, de este modo, se aumenta la seguridad vial. [0010] An object of the traffic control device is to identify vehicles that violate traffic regulations by combining different cameras continuously capturing images of a traffic zone to be controlled regulated by a switchable traffic signal, a detector device that supplies a virtual infraction line, a traffic signal switching status detector, a data processor adapted to read or identify vehicle records or license plates and a communications interface that communicates via radio with a traffic management center. [0011] Yet another object of the traffic controller device is to be supplied in a single portable container that is easy to install and uninstall from a traffic location to be controlled. This facilitates the movement of the controller device to other possible locations, forcing potential infringing vehicles to comply with traffic regulations and, thus, road safety is increased.
[0012] Todavía otro objeto del dispositivo controlador de tráfico es detectar el estado de conmutación de una señal de tráfico conmutable sin tener una conexión directa con la misma. [0013] Otro objeto del dispositivo controlador de tráfico es utilizar un detector de infracción ensamblado dentro del contenedor portable del dispositivo controlador de tráfico. Por tanto, el dispositivo controlador de tráfico permite prescindir de un detector físico incrustado dentro de una calzada apta para tráfico de vehículos y de conexión directa con la señal de tráfico conmutable. [0012] Still another object of the traffic controller device is to detect the switching state of a switchable traffic signal without having a direct connection with it. [0013] Another object of the traffic controller device is to use an infraction detector assembled within the portable container of the traffic controller device. Therefore, the traffic control device makes it possible to dispense with a physical detector embedded within a road suitable for vehicle traffic and for direct connection to the switchable traffic signal.
[0014] Aún otro objeto del dispositivo controlador es capturar continuamente imágenes de la zona de tráfico objetivo a controlar y de la señal de tráfico conmutable ubicada en la misma zona de tráfico. [0014] Still another object of the controlling device is to continuously capture images of the target traffic zone to be controlled and of the switchable traffic signal located in the same traffic zone.
BREVE ENUNCIADO DE LAS FIGURAS [0015] Una explicación más detallada de la invención se da en la descripción que sigue y que se basa en las figuras adjuntas: BRIEF STATEMENT OF THE FIGURES [0015] A more detailed explanation of the invention is given in the description that follows and which is based on the attached figures:
[0016] La figura 1 muestra en una vista esquemática un dispositivo controlador de tráfico instalado en una estructura de soporte localizado en una zona de tráfico objeto de control regulado por una señal de tráfico conmutable. MODO DE REALIZACIÓN [0016] Figure 1 shows in a schematic view a traffic controller device installed in a support structure located in a traffic zone controlled by a switchable traffic signal. MODE OF REALIZATION
[0017] En relación ahora con la figura 1 donde se muestra un contenedor 1 1 que contiene un dispositivo controlador de tráfico instalado en una estructura de soporte localizado en una zona de tráfico objetivo de control regulado por una señal 15 de tráfico conmutable. [0018] El dispositivo 1 1 controlador de tráfico comprende una pluralidad de cámaras 12 en blanco y negro B/N adaptadas para capturar continuamente imágenes de vehículos 16 que circulan por una zona de tráfico regulada por una señal 15 de tráfico conmutable, un detector de infracción adaptado para suministrar una línea de detección de infracción virtual, un detector del estado de conmutación de la señal de tráfico conmutable que comprende una cámara de color configurable para capturar continuamente imágenes de la señal 15 de tráfico conmutada, un procesador 13 de datos que ejecuta un algoritmo de lectura de registros o placas de vehículos y una interfaz de comunicaciones que se comunica vía radio con un centro 14 de gestión de tráfico. [0019] La altura y la posición del dispositivo 1 1 controlador se selecciona para permitir un campo de visión óptimo de la zona de tráfico a controlar. Asimismo, alguna de las cámaras 12 puede ser instalada fuera del contenedor 1 1 del dispositivo controlador con el fin de tener un campo de visión óptimo de la zona de tráfico a controlar. [0017] In relation to FIG. 1, where a container 1 1 is shown containing a traffic controller device installed in a support structure located in a control target traffic zone regulated by a switchable traffic signal 15. [0018] The traffic control device 1 1 comprises a plurality of B / W black and white cameras 12 adapted to continuously capture images of vehicles 16 circulating in a traffic zone regulated by a switchable traffic signal 15, a traffic detector infraction adapted to provide a virtual infraction detection line, a switching state detector of the switchable traffic signal comprising a configurable color camera to continuously capture images of the switched traffic signal 15, a data processor 13 that executes an algorithm for reading records or license plates and a communications interface that communicates via radio with a traffic management center 14. [0019] The height and position of the controller 1 1 device is selected to allow an optimal field of view of the traffic zone to be controlled. Also, some of the cameras 12 can be installed outside the container 1 1 of the controller device in order to have an optimal field of view of the traffic zone to be controlled.
[0020] El dispositivo 1 1 controlador está configurado para ser fijado mecánicamente a una estructura soporte tal como una farola localizada a una distancia predeterminada de la señal 15 de tráfico conmutable, facilitando al máximo la implantación y despliegue del dispositivo controlador al no ser necesaria la instalación de postes o báculo dedicados. [0020] The controller device 1 1 is configured to be mechanically fixed to a support structure such as a lamppost located at a predetermined distance of the switchable traffic signal 15, facilitating the implementation and deployment of the controller device as much as the installation of dedicated poles or staff.
[0021] Las cámaras 12 de B/N capturan continuamente imágenes de vehículos 15 que se desplazan por la zona de tráfico controlada por el dispositivo controlador. Las imágenes en B/N capturadas son transmitidas al procesador 13 de datos que ejecuta un algoritmo de identificación de un registro o placa de matrícula de vehículo 16 que se ha desplazado mientras que la señal 15 de tráfico conmutable está en el estado de conmutación correspondiente a la detención de vehículos, es decir, semáforo en rojo. [0021] B / W cameras 12 continuously capture images of vehicles 15 that move through the traffic zone controlled by the controller device. The captured B / W images are transmitted to the data processor 13 that executes an identification algorithm of a vehicle registration or registration plate 16 that has been displaced while the switchable traffic signal 15 is in the switching state corresponding to the arrest of vehicles, that is, a red light.
[0022] Mientras la cámara de color del detector del estado de conmutación de la señal de tráfico captura continuamente imágenes del estado de conmutación actual de la señal 15 de tráfico conmutable. [0022] While the color camera of the traffic signal switching status detector continuously captures images of the current switching status of the switchable traffic signal 15.
[0023] Las imágenes capturadas por el detector de estado son a su vez transmitidas al procesador 13 de datos que ejecuta un algoritmo de visión artificial para determinar si el estado de conmutación de al señal de tráfico corresponde con el semáforo en rojo, es decir, el dispositivo controlador de tráfico no requiere tener una conexión física directa con el semáforo 15 para determinar el estado actual de conmutación, semáforo en rojo, ámbar y/o verde. [0024] El procesador 13 de datos determina el estado de conmutación de la señal de tráfico conmutable a partir de las imágenes capturadas por la cámara de color del detector de estado. [0023] The images captured by the status detector are in turn transmitted to the data processor 13 that executes an artificial vision algorithm to determine whether the switching state of the traffic signal corresponds to the red light, that is, the traffic controller device does not require a direct physical connection to traffic light 15 to determine the current state of switching, traffic light in red, amber and / or green. [0024] The data processor 13 determines the switching status of the switchable traffic signal from the images captured by the color camera of the status detector.
[0025] El detector de infracciones está configurado para inserta en las imágenes recibidas por el procesador de datos desde la cámara de B/N, una línea de infracción virtual a partir de la cual el procesador 13 de datos es capaz de determinar si un vehículo a sobrepasado la línea de parada de la señal de tráfico conmutable cuando éste emite una señal aditiva de conmutación correspondiente a semáforo en rojo. [0026] Por lo tanto, el detector de infracción define una línea de infracción virtual en el campo de visión de la imagen capturada por la cámara de B/N. [0025] The infraction detector is configured to insert into the images received by the data processor from the B / W camera, a virtual infraction line from which the data processor 13 is able to determine whether a vehicle The stop line of the switchable traffic signal is exceeded when it emits an additive switching signal corresponding to a red light. [0026] Therefore, the infraction detector defines a virtual infraction line in the field of view of the image captured by the B&W camera.
[0027] Las imágenes capturadas por las diferentes cámaras son almacenadas en un dispositivo de almacenamiento masivo tal como una memoria intermedia, de manera que en respuesta a un mensaje de petición emitido por el procesador 13 de datos, la memoria intermedia transmite las imágenes almacenadas solicitadas por el procesador de datos. El dispositivo 1 1 controlador no comprende un elemento de disparo de infracción, es decir, el procesador de datos recibe de modo continuo imágenes capturadas por la cámara de B/N y del detector de estado de conmutación y a partir de las mismas está adaptado para determinar si algún vehículo ha incumplido las normas de tráfico. [0027] The images captured by the different cameras are stored in a mass storage device such as an intermediate memory, so that in response to a request message issued by the data processor 13, the intermediate memory transmits the requested stored images by the data processor. The controller device 1 1 does not comprise an infrared trigger element, that is, the data processor continuously receives images captured by the B / W camera and the switching status detector and is adapted therefrom to determine If any vehicle has breached traffic regulations.
[0028] El procesador 13 realiza una correlación entre las imágenes capturadas por la cámara de B/N y las imágenes capturadas por la cámara de color del detector del estado de conmutación en el evento de que el color de la señal 15 de tráfico conmutable corresponda a semáforo en rojo. [0028] The processor 13 correlates between the images captured by the B / W camera and the images captured by the color camera of the switching status detector in the event that the color of the switchable traffic signal 15 corresponds at red light.
[0029] Si el resultado de la etapa de correlación es afirmativo, es decir, en el evento de que el procesador 13 de datos determine que el semáforo 15 está en su estado de conmutación rojo, inicia un proceso de detección de vehículo 16 que sobrepasase la línea de infracción virtual insertada en una imagen de B/N capturada y recibida por el mismo. Si el resultado del paso anterior es afirmativo, inicia una etapa de identificación del registro del vehículo infractor. [0029] If the result of the correlation stage is affirmative, that is, in the event that the data processor 13 determines that the traffic light 15 is in its red switching state, it initiates a vehicle detection process 16 that exceeds the virtual infraction line inserted in a B / W image captured and received by it. If the result of the previous step is affirmative, it initiates a stage of identification of the registration of the offending vehicle.
[0030] El procesador 13 de datos determina que un vehículo 16 ha sobrepasado la línea de infracción virtual cuando detecta un cambio en la escala de grises al otro lado de la línea de infracción virtual insertada en una imagen en B/N y, además, se detecta una placa de matrícula en el área que ha sufrido el cambio [0030] The data processor 13 determines that a vehicle 16 has exceeded the virtual infraction line when it detects a change in gray scale on the other side of the virtual infraction line inserted in a B / W image and, in addition, a license plate is detected in the area that has undergone the change
[0031] Y, además, el procesador 13 de datos recupera desde la memoria intermedia un conjunto de imágenes anteriores correspondientes al campo de visión que vigila la cámara de color donde se ha detectado el vehículo 16 infractor para adjuntarlas con imágenes capturadas después de la infracción por la misma cámara color. [0031] And, in addition, the data processor 13 recovers from the buffer a set of previous images corresponding to the field of view that monitors the color camera where the offending vehicle 16 has been detected to attach them with images captured after the infraction By the same color camera.
[0032] Resumiendo, la cámara color, además de ver el estado del semáforo, es la que ofrece las imágenes anteriores del vehículo antes de entrar en la línea de infracción virtual y las posteriores al paso del automóvil por dicha línea. La cámara B/N se utiliza para saber que el auto está al otro lado de la línea de infracción cuando la cámara color detecta el estado de conmutación en rojo. Las imágenes de ambos tipos de cámaras están correlacionadas. [0033] El dispositivo 1 1 controlador de tráfico no recibe señal alguna asociada a la detección de una infracción de tráfico, una vez que el dispositivo 1 1 controlador ha sido instalado y activado, éste comienza a capturar continuamente imágenes correspondientes al área de tráfico objetivo de control. [0032] In summary, the color camera, in addition to seeing the state of the traffic light, is the one that offers the previous images of the vehicle before entering the line of virtual infringement and subsequent to the passage of the car through said line. The B / W camera is used to know that the car is on the other side of the infraction line when the color camera detects the switching state in red. The images of both types of cameras are correlated. [0033] The 1 1 traffic controller device receives no signal associated with the detection of a traffic violation, once the 1 1 controller device has been installed and activated, it begins to continuously capture images corresponding to the target traffic area of control.
[0034] Asimismo, el dispositivo 1 1 controlador de tráfico realiza una captura ininterrumpida de imágenes correspondientes a la zona objetivo de control, de manera anticipada a una infracción, es decir, realiza una captación preventiva de imágenes. [0034] Likewise, the traffic control device 1 1 performs an uninterrupted capture of images corresponding to the target control zone, in advance of an infraction, that is, it performs a preventive image capture.
[0035] La memoria intermedia y el procesador 13 de datos cooperan para grabar y determinar si un evento de infracción ha sido realizado por un vehículo 16 cuando la señal 15 de tráfico conmutable estaba conmutado a su estado de conmutación activo o rojo. [0035] The buffer and the data processor 13 cooperate to record and determine if an infringement event has been performed by a vehicle 16 when the switchable traffic signal 15 was switched to its active or red switching state.
[0036] En el detector del estado de conmutación se pueden parametrizar tanto el tiempo en el que la señal 15 de tráfico debe llevar conmutado a rojo como el tiempo que debe restar para que vuelva conmutar a verde. Con el objetivo de detectar vehículos infractores sólo en ese intervalo. Así se evita detectar vehículos infractores justo cuando la señal de tráfico ha sido conmutada a rojo o un instante previo a que se conmute a verde. [0036] In the detector of the switching state, both the time in which the traffic signal 15 must be switched to red and the time that must remain before it switches back to green can be parameterized. In order to detect infringing vehicles only in that interval. This avoids detecting infringing vehicles just when the traffic signal has been switched to red or a moment before it turns to green.
[0037] El procesador 13 de datos genera una secuencia de imágenes en color anteriores y posteriores a la detección de una infracción que son transmitidas a través de la interfaz radio del dispositivo controlador a un centro 14 de gestión de tráfico. La interfaz de comunicación puede utilizar un protocolo de comunicaciones del tipo 3G. Una de las imágenes transmitidas comprende el vehículo 16 infractor que ha rebasado completamente la línea de infracción virtual con el semáforo en rojo. Por tanto, el área de interés a controlar es la correspondiente a la posición del vehículo antes y después de la línea de semáforo. [0037] The data processor 13 generates a sequence of color images before and after the detection of an infraction that is transmitted through the radio interface of the controller device to a traffic management center 14. The communication interface can use a 3G type communication protocol. One of the transmitted images comprises the offending vehicle 16 that has completely exceeded the virtual infraction line with the red light. Therefore, the area of interest to be controlled is that corresponding to the position of the vehicle before and after the traffic light line.
[0038] El procesador 13 de datos registra además una serie de datos para cada imagen capturada. Entre estos se incluyen la fecha, hora y lugar de la captura y la identificación de las cámaras que ha intervenido en la detección de la infracción. Todos estos datos son transmitidos también al centro de gestión de tráfico. [0038] The data processor 13 also records a series of data for each captured image. These include the date, time and location of the capture and the Identification of the cameras that have intervened in the detection of the infraction. All this data is also transmitted to the traffic management center.
[0039] El procesador de datos está programado para ordenar el borrado de las imágenes capturadas y almacenadas en la memoria intermedia, una vez que se ha determinado que no ha existido una infracción de las normas de tráfico y/o ha sido enviado un mensaje incluyendo información asociada a un evento de infracción detectado al centro 14 de gestión de tráfico. [0039] The data processor is programmed to order the deletion of the images captured and stored in the buffer memory, once it has been determined that there has been no violation of traffic regulations and / or a message has been sent including information associated with an infringement event detected at the traffic management center 14.
[0040] Asimismo, el procesador 13 de datos está adaptado para enviar las infracciones detectadas a la memoria intermedia para su almacenamiento cuando no existe comunicación con el centro de gestión. Una vez la comunicación se recupera, las infracciones almacenadas son transmitidas al centro de gestión. [0040] Also, the data processor 13 is adapted to send the detected violations to the buffer for storage when there is no communication with the management center. Once the communication is recovered, the stored infractions are transmitted to the management center.

Claims

REIVINDICACIONES
1. Un dispositivo controlador de tráfico identifica vehículos infractores de normas de tráfico dentro de una zona de tráfico regulada por una señal (15) de tráfico conmutable; caracterizado porque el dispositivo (1 1) controlador de tráfico comprende una cámara (12) de blanco y negro B/N adaptada para capturar continuamente imágenes de la zona de tráfico controlada, un dispositivo detector adaptado para suministrar una línea de infracción virtual, un detector del estado de conmutación de la señal de tráfico conmutable, un procesador (13) de datos adaptado para leer o identificar registros o placas de vehículos (16) y una interfaz de comunicaciones vía radio que transmite mensajes asociados a infracciones detectadas a un centro de gestión de tráfico. 1. A traffic controller device identifies vehicles violating traffic rules within a traffic zone regulated by a switchable traffic signal (15); characterized in that the traffic controller device (1 1) comprises a black and white B&W camera (12) adapted to continuously capture images of the controlled traffic zone, a detector device adapted to supply a virtual infraction line, a detector of the switching state of the switchable traffic signal, a data processor (13) adapted to read or identify vehicle records or plates (16) and a radio communication interface that transmits messages associated with detected infractions to a management center of traffic.
2. Dispositivo de acuerdo a la reivindicación 1 ; caracterizado porque el procesador (13) de datos está configurado para insertar la línea de infracción virtual en una imagen en B/N recibida. 2. Device according to claim 1; characterized in that the data processor (13) is configured to insert the virtual infraction line into a received B / W image.
3. Dispositivo de acuerdo a la reivindicación 1 ; caracterizado porque el procesador (13) de datos está configurado para determinar el estado de conmutación actual de la señal (15) de tráfico conmutable en función de las imágenes en color recibidas desde el detector del estado de conmutación. 3. Device according to claim 1; characterized in that the data processor (13) is configured to determine the current switching status of the switchable traffic signal (15) based on the color images received from the switching status detector.
4. Dispositivo de acuerdo a la reivindicación 1 ; caracterizado porque el procesador (13) de datos es capaz de generar un mensaje de infracción si detecta la presencia de un vehículo (16) pasada la línea de infracción virtual y la señal de tráfico está conmutada a su señal activa de detención de vehículos. 4. Device according to claim 1; characterized in that the data processor (13) is capable of generating an infraction message if it detects the presence of a vehicle (16) past the virtual infraction line and the traffic signal is switched to its active vehicle stop signal.
5. Dispositivo de acuerdo a la reivindicación 1 ; caracterizado porque el procesador (13) de datos es capaz de leer o identificar un registro o placa de vehículo (16) que ha sobrepasado la línea de infracción virtual. 5. Device according to claim 1; characterized in that the data processor (13) is capable of reading or identifying a vehicle register or plate (16) that has exceeded the virtual infraction line.
6. Dispositivo de acuerdo a la reivindicación 5; caracterizado porque el mensaje de infracción generado por el procesador (13) de datos incluye imágenes de color previas a la infracción y posteriores a la misma. 6. Device according to claim 5; characterized in that the infraction message generated by the data processor (13) includes color images before and after the infraction.
7. Dispositivo de acuerdo a la reivindicación 5; caracterizado porque el procesador (13) de datos es capaz de recuperar imágenes de color previas a la infracción almacenadas en un dispositivo de almacenamiento masivo. 7. Device according to claim 5; characterized in that the data processor (13) is capable of recovering pre-infringement color images stored in a mass storage device.
8. Dispositivo de acuerdo a la reivindicación 5; caracterizado porque el procesador (13) de datos está adaptado para transmitir el mensaje de infracción a un centro (14) de gestión de tráfico a través de la interfaz de comunicación utilizando un protocolo de comunicación inalámbrico tal como un protocolo 3G. 8. Device according to claim 5; characterized in that the data processor (13) is adapted to transmit the violation message to a traffic management center (14) through the communication interface using a wireless communication protocol such as a 3G protocol.
PCT/ES2011/070669 2011-09-26 2011-09-26 Traffic control device WO2013045714A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB945693A (en) * 1959-09-08 1964-01-08 Agfa Ag Device for traffic supervision
WO2001020581A1 (en) * 1999-09-14 2001-03-22 Locktronic Systems Pty Ltd Improvements in image recording apparatus and method
US20040222904A1 (en) * 2003-05-05 2004-11-11 Transol Pty Ltd Traffic violation detection, recording and evidence processing system
ES2246047T3 (en) * 2002-04-15 2006-02-01 Gatsometer B.V. METHOD AND DEVICE FOR CONTROLLING A SURVEILLANCE CAMERA.
US20110182473A1 (en) * 2010-01-28 2011-07-28 American Traffic Solutions, Inc. of Kansas System and method for video signal sensing using traffic enforcement cameras

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB945693A (en) * 1959-09-08 1964-01-08 Agfa Ag Device for traffic supervision
WO2001020581A1 (en) * 1999-09-14 2001-03-22 Locktronic Systems Pty Ltd Improvements in image recording apparatus and method
ES2246047T3 (en) * 2002-04-15 2006-02-01 Gatsometer B.V. METHOD AND DEVICE FOR CONTROLLING A SURVEILLANCE CAMERA.
US20040222904A1 (en) * 2003-05-05 2004-11-11 Transol Pty Ltd Traffic violation detection, recording and evidence processing system
US20110182473A1 (en) * 2010-01-28 2011-07-28 American Traffic Solutions, Inc. of Kansas System and method for video signal sensing using traffic enforcement cameras

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