EP2469497B1 - Procédé d'enregistrement d'image de véhicules - Google Patents

Procédé d'enregistrement d'image de véhicules Download PDF

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Publication number
EP2469497B1
EP2469497B1 EP10450197A EP10450197A EP2469497B1 EP 2469497 B1 EP2469497 B1 EP 2469497B1 EP 10450197 A EP10450197 A EP 10450197A EP 10450197 A EP10450197 A EP 10450197A EP 2469497 B1 EP2469497 B1 EP 2469497B1
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EP
European Patent Office
Prior art keywords
entry
exit
pic
vehicle
memory
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.)
Not-in-force
Application number
EP10450197A
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German (de)
English (en)
Other versions
EP2469497A1 (fr
Inventor
Oliver Nagy
Alexander Abl
Jasja Tijink
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.)
Kapsch TrafficCom AG
Original Assignee
Kapsch TrafficCom AG
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
Priority to DK10450197.8T priority Critical patent/DK2469497T3/da
Application filed by Kapsch TrafficCom AG filed Critical Kapsch TrafficCom AG
Priority to ES10450197T priority patent/ES2401674T3/es
Priority to PL10450197T priority patent/PL2469497T3/pl
Priority to EP10450197A priority patent/EP2469497B1/fr
Priority to PT104501978T priority patent/PT2469497E/pt
Priority to SI201030145T priority patent/SI2469497T1/sl
Priority to CA2756910A priority patent/CA2756910A1/fr
Priority to AU2011250695A priority patent/AU2011250695B2/en
Priority to NZ596440A priority patent/NZ596440A/en
Priority to US13/330,379 priority patent/US20120162432A1/en
Priority to CN2011104270504A priority patent/CN102568219A/zh
Priority to CL2011003242A priority patent/CL2011003242A1/es
Priority to RU2011153165/11A priority patent/RU2011153165A/ru
Publication of EP2469497A1 publication Critical patent/EP2469497A1/fr
Application granted granted Critical
Publication of EP2469497B1 publication Critical patent/EP2469497B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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    • 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
    • G08G1/052—Detecting movement of traffic to be counted or controlled with provision for determining speed or overspeed
    • G08G1/054—Detecting movement of traffic to be counted or controlled with provision for determining speed or overspeed photographing overspeeding vehicles
    • 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

Definitions

  • the present invention relates to a method for image recording of vehicles passing through a distance between an entrance and an exit at too high a speed.
  • Certain traffic surveillance tasks require a picture of a vehicle to preserve evidence for the punishment of traffic offenses. Examples of this are the so-called “Section Control", in which the entry and exit times of a vehicle are measured at the section of road traveled by the vehicle and used for speed determination.
  • the traffic monitoring systems used for this purpose must meet strict data protection requirements in order to rule out as far as possible the impermissible creation of movement profiles of road users. For example, the statutory regulations in Austria and Germany for the implementation of Section Control require that a permanent identification of a vehicle and its transit data may only be made in the event of a speeding violation.
  • the invention has for its object to provide a method for imaging vehicles passing through a route at too high a speed, which offers the highest possible data protection for the sensitive transit data.
  • the invention enables a separate storage of the images of the vehicles in a secure memory and only for the time that is strictly necessary in order to be available in case of a speeding offense.
  • the images are only under the random Access identifier can be found, which in turn can be determined only by an anonymous comparison of encrypted or hashed entry and exit data.
  • the first memory may be sealed as a "black box” and privacy-certified, and only in the event of an offense the key (the access identifier) is provided for the "sealed" image recordings.
  • an "encrypted value” of the entry or exit identifier is understood as an encryption of this identifier by means of a cryptographic key, so that its knowledge of the decryption is required.
  • a “hashed value” “hash value”) of the entry or exit identifier is understood in the present description to mean the application of a virtually irreversible n: 1 mapping function to this identifier, i. a function that is only (extremely) ambiguous reversible, so that from the knowledge of the hash value practically no longer on the output value (the identifier) can be concluded. Examples of such hashing functions are the checksum function, the modulo function, etc.
  • the entry and exit times of quasi "anonymous" encrypted or hashed values are compared; and only if they are within a predetermined period of time is the associated access identifier used to retrieve an image capture.
  • the said period of time is chosen so that it corresponds to the minimum allowable travel time for the route, i. if a vehicle passes through it at the maximum permissible speed. This significantly increases data security.
  • an exit image of the vehicle is preferably recorded at the exit, a class of the vehicle is determined therefrom and the time period is predefined as a function of the determined class.
  • This can be different Speed limits for different classes (types) of vehicles are controlled, eg 130 km / h for cars, 100 km / h for trucks, 80 km / h for vehicles with trailers, etc.
  • the entry images in the first memory are each provided with their recording time and each entry image, which is not retrieved within a predetermined period, is deleted in the first memory.
  • the storage time of the image data in the first memory is thus limited to the minimum necessary period of time, which further reduces the risk of manipulation and unauthorized data access.
  • the access identifier from that record is used to clear the entry image stored thereto in the first memory ,
  • the first memory is physically separated from the second memory to facilitate the establishment of the first memory as a "black box”.
  • a further preferred embodiment of the invention is characterized in that an exit image of the vehicle is also recorded at the exit and each successfully retrieved entry image is archived together with the exit image and the identification of the vehicle for purposes of proof.
  • any suitable for an identification feature of the vehicle may be used, for example, a remote-readable VIN, a radio ID of an entrained RFID transponder chip, etc.
  • the identifier is simply the vehicle registration number on the license plate of the vehicle and is as a picture or especially preferably alphanumerically by optical character recognition (optical character recognition, OCR) in entry and exit images of the vehicle.
  • OCR optical character recognition
  • the same entry and exit images can be used for this, which are also archived for evidence, so that at the entrance and exit only a single image acquisition is required.
  • his speed can be determined from the entry and exit time of a vehicle and the length of the route between entry and exit.
  • the proper access to the image recordings can additionally be checked by a further offense check within the first memory (the "black box"), in addition to the access identifier, the entry and exit times in a form electronically signed by the entry and exit stations be handed over to the black box.
  • the respective images and entry and exit times are preferably provided at the entrance and exit with an electronic signature of an entry or exit station, and in particular with the access to the first memory, the entry and exit times to the first memory mitelle, and from first memory is a retrieval of the entrance image only allowed if the entrained entry and exit times are within the specified time period, preferably from the first memory and the signatures of the entry and exit times are checked.
  • the entry and exit images may be stored with a separate key from a third party, e.g. a competent traffic control authority, encrypted in the corresponding memories for control queries by this third party, in particular the authority.
  • a third party e.g. a competent traffic control authority
  • Fig. 1 shows a vehicle 1, which passes a distance 2 of length L from an entrance 3 to an exit 4.
  • the vehicle 1 has a unique identifier 5, for example in the form of its license plate number (LPN).
  • LPN license plate number
  • the identifier 5 could alternatively also be formed by other features of the vehicle 1, eg a machine-readable chassis number, a remote-readable radio identifier, eg RFID identifier, etc.
  • the entry station 6 has at least one camera or video camera, with which it can record an entry image PIC 1 of the vehicle 1 when passing the driveway 3 and can also detect the entry time TS 1 .
  • the entry station 6 also detects the identifier 5 or LPN of the vehicle 1 as "entry detection" LPN 1 .
  • the entry detection LPN 1 can for example be done directly by optical character recognition (OCR) of the vehicle registration number of the vehicle 1 in the entrance image PIC 1 , or by remote readout of a radio ID from an RFID transponder chip or radio on-board device (OBU) of the vehicle 1, or the like.
  • OCR optical character recognition
  • OBU radio on-board device
  • the entrance image PIC 1 , the entry ID LPN 1 and the entry time TS 1 are stored by the entry station 6 in databases 8, 9, as later described in detail with reference to Fig. 2 is explained.
  • the exit station 7 picks up an exit image PIC 2 of the vehicle 1 when passing the exit 4 and detects the exit time TS 2 as well as the identification 5 or LPN of the vehicle 1 as "exit recognition" LPN 2 .
  • the exit picture PIC 2 , the exit identifier LPN 2 and the exit time TS 2 are temporarily stored in an internal memory 10 of the exit station 7.
  • the entry and exit stations 6, 7 can communicate directly with one another via a data connection 11, and the method described below can be carried out, for example, directly in the exit station 7.
  • the entry and exit stations 6, 7 can communicate with an evaluation computer 12 in which their data are evaluated in the manner described below.
  • Fig. 2 shows that with the components of Fig. 1 performed method of the invention in detail.
  • a separate, unique and random access identifier (“random ID") RID is generated in the entry station 6 for each vehicle 1 that passes the entrance 3.
  • the access identifier RID may be randomly generated, or taken from a list of any prestored access identifiers known only at the entry station 6.
  • the entrance image PIC 1 is also recorded in the manner described and the entry time TS 1 and the entrance recognition LPN 1 detected, for example by OCR evaluation of the entrance image PIC 1 with respect to the vehicle registration number of the vehicle 1.
  • the entry identifier LPN 1 has formed a hash h.
  • the hash value h is generated in a virtually irreversible manner from the entry identifier LPN 1 , as discussed at the beginning.
  • step 14 the entry image PIC 1 is stored under the random access identifier RID in the first memory 8 of the entry station 6.
  • the memory 8 is a separate, preferably physically also in the form of a "black box” isolated and data protection technology sealed and certified memory, from which the once stored therein Ein marsscou PIC. 1 only accessible on the basis of their respective access identifier RID.
  • step 15 the hash value h (LPN 1 ) is stored together with the entry time TS 1 and the access identifier RID as a data record 16 in the second memory 9 of the entry station 6.
  • a vehicle 1 passes the exit 4, it being still not clear at first whether it is the same vehicle 1 that has passed the entrance 3 in steps 13-15.
  • the exit station 7 detects the exit identifier LPN 2 and the exit time TS 2 as well as the exit identifier LPN 2 , which can be obtained, for example, again from an exit picture PIC 2 by OCR evaluation of a vehicle license plate recognizable therein.
  • the exit identifier LPN 2 could also be determined from a radio identifier or other characteristic features of the vehicle 1, in which case the inclusion of an exit image PIC 2 is not absolutely necessary, but favorable for later proof purposes. From the exit identifier LPN 2 , the exit station 7 again calculates a hash value h (LPN 2 ) in the manner discussed above.
  • an encrypted value of the entry identifier LPN 1 was used in the entry station instead of a hash value, an encrypted value of the same is also formed in the exit station instead of a hash value of the exit identifier LPN 2 , u.zw. using the same key (or the other part of a corresponding public / private key pair for the entry and exit stations 6, 7).
  • the hash value h of the exit identifier LPN 2 is used to determine from the second memory 9 of the entry station 6 that data record 16 which contains the same hash value h as obtained from the entry identifier LPN 1 .
  • This can be one owned by a single vehicle 1 entry time TS 1 and its stored access identifier RID be determined without the vehicle identification 5 or LPN directly between the entry and exit stations 6, 7 must be replaced.
  • entry and exit identifications LPN 1 , LPN 2 are determined by means of OCR from the entry and exit pictures PIC 1 , PIC 2 , due to the error rate of conventional OCR methods, the case may occur that instead of a single correct OCR reading result several different " Candidate IDs LPN 1 and LPN 2, respectively, as possible OCR read results.
  • a plurality of encrypted or hashed candidate hash values h can also be formed on each side, ie in the entry station and in the exit station; Accordingly, in the retrieval of the record 16 from the second memory 9, the various candidate hash values h of both pages are compared with each other to find out the "matching" record 16 at which these hash values h coincide.
  • step 19 it is then compared whether the exit time TS 2 of this vehicle 1 is within a predetermined time period t max of the entry time TS 1 of the same vehicle 1. If this is the case (branch "y" of the comparison 19), then it is obviously a speeding error: The vehicle 1 then has the distance L in a shorter than the allowable time t max and thus with a higher than the maximum speed passed through. In this case, in step 20, the black box memory 8 is accessed using the access identifier RID specified in the data record 16, to derive therefrom the information stored under the access identifier RID Access image PIC 1 .
  • the entrance image PIC 1 can be used directly for punishment ("enforcement") of the traffic offense or in an optional step 21 together with the entry and exit times TS 1 , TS 2 and the optional exit image PIC 2 in a memory, eg also in the memory 10.
  • the exit station 7 are archived.
  • the time span t max can also be predetermined depending on the type (class) of the vehicle 1.
  • the exit image PIC 2 can be automatically analyzed to classify the vehicle 1 depicted therein;
  • different time intervals t max can then be determined and predefined from a stored table in order to define specific speed limits for certain vehicle types, taking into account the length L of the route 2, eg 130 km / h for cars, 100 km / h for trucks. 80 km / h for vehicles with trailers, etc.
  • a computer may retrieve the data generated in step 21 for further sanction, and upon retrieval, preferably, all data in the exit station 7 and memory 10 is deleted.
  • the black box memory 8 (optionally also the second memory 9) can be designed so that it continuously deletes all those entry pictures PIC 1 (or optionally also those data TS 1 , h (LPN 1 )) after a predetermined period of time from the time TS 1 of their detection, preferably after the said time period t max , not be retrieved.
  • These "unrequested" entry pictures PIC 1 obviously are pictures of vehicles 1 that have not committed a speeding offense so that they are deleted after expiration of the time period t max for privacy reasons (step 22).
  • the image recording or access times TS 1 can be stored in the first storage 1 directly to the entrance 8 pictures PIC.
  • deletion of the "no-entry" entry pictures PIC 1 in the first memory 8 are also triggered by the entry station 6 using the entry times TS 1 from the second memory 9 if the current time is greater than the entry time TS 1 plus the time period t max .
  • step 23 is traversed at the "no" branch of the comparison 19.
  • the clearing of the entry-free entry pictures PIC 1 is initiated in step 23 by the exit station 7, which sends a request to the black box memory 8 (and optionally the second memory 9) or the entry station 6 for deleting the entry picture (and optionally the data of the memory 9) sends.
  • a compliant vehicle thus leaves no identifiable traces in the system, which ensures the highest data security.
  • the steps 17 - 21 or 23 of the method can - except in the detection of the exit time TS 2 and the exit image PIC 2 - instead of in the exit station 7 in the (optional) evaluation computer 12 are performed, if desired.
  • the entry and exit pictures PIC 1 , PIC 2 can optionally be encrypted with a key of an authority and provided in the corresponding memories 8, 9, 10 for control inquiries by the authority.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Traffic Control Systems (AREA)
  • Storage Device Security (AREA)
  • Time Recorders, Dirve Recorders, Access Control (AREA)

Claims (12)

  1. Procédé enregistrement d'image (PIC1) de véhicules (1), qui parcourent une distance (2) entre une entrée (3) et une sortie (4) avec une vitesse trop élevée, comportant :
    la génération d'un identifiant d'accès aléatoire (RID) pour un véhicule (1) à l'entrée (3),
    l'enregistrement d'une image (PIC1) du véhicule (1) à l'entrée (3) et le stockage de l'image à l'entrée (PIC1) et de l'identifiant d'accès (RID) dans un premier dispositif de stockage (8) qui peut être appelé uniquement par le biais de cet identifiant d'accès (RID),
    la détection de l'heure d'entrée (TS1) et d'au moins un indicatif (LPN1) du véhicule à l'entrée (3), la formation d'une valeur chiffrée ou hachée (h) de cet indicatif à l'entrée (LPN1) et le stockage de l'heure d'entrée (TS1), de ladite valeur (h(LPN1)) et de l'identifiant d'accès (RID) sous forme d'un enregistrement de données (16) dans un deuxième dispositif de stockage (9),
    la détection de l'heure de sortie (TS2) et d'au moins un indicatif (LPN2) d'un véhicule (1) à la sortie (4), la formation d'une valeur chiffrée ou hachée (h) de cet indicatif à la sortie (LPN2) et la détermination de l'enregistrement de données (16) ayant la même valeur (h) chiffrée ou hachée dans le deuxième dispositif de stockage (9) et,
    lorsque l'heure de sortie (TS2) est située dans un intervalle de temps prédéfini (tmax) à partir de l'heure d'entrée (TS1) de cet enregistrement de données (16), l'emploi de l'identifiant d'accès (RID) de l'enregistrement de données (16) en vue d'accéder au premier dispositif de stockage (8) afin d'appeler l'image à l'entrée (PIC1) du véhicule (1) stockée dans ce but.
  2. Procédé selon la revendication 1, caractérisé en ce qu'une image à la sortie (PIC2) du véhicule (1) est également enregistrée à la sortie (4) et une classe du véhicule (1) est déterminée à partir de cette image, et en ce que l'intervalle de temps (tmax) est fixé selon la classe déterminée.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que les images à l'entrée (PIC1) sont dotées chacune dans le premier dispositif de stockage (8) de leur heure d'enregistrement (TS1) et chaque image à l'entrée (PIC1), qui n'est pas appelée dans un intervalle de temps prédéfini (tmax), est effacée dans le premier dispositif de stockage (8).
  4. Procédé selon la revendication 1 ou 2, caractérisé en ce que, lorsque l'heure de sortie (TS2) n'est pas située dans ledit intervalle de temps (tmax) depuis l'heure d'entrée (TS1) dudit enregistrement de données (16), l'identifiant d'accès (RID) est employé dans l'enregistrement de données (16) pour effacer l'image à l'entrée (PIC1) stockée dans le premier dispositif de stockage (8).
  5. Procédé selon une des revendications 1 à 4, caractérisé en ce que le premier dispositif de stockage (8) est séparé physiquement du deuxième dispositif de stockage (9).
  6. Procédé selon une des revendications 1 à 5, caractérisé en ce qu'une image à la sortie (PIC2) du véhicule (1) est également enregistrée à la sortie (4) et chaque image à l'entrée (PIC1) appelée avec succès est archivée avec l'image de sortie (PIC2) et l'indicatif (LPN) du véhicule à des fins de preuve.
  7. Procédé selon une des revendications 1 à 6, caractérisé en ce que le numéro d'immatriculation du véhicule est employé en tant qu'indicatif (LPN) et qu'il est détecté par une reconnaissance optique de caractères dans les images à l'entrée et à la sortie (PIC1, PIC2) du véhicule (1).
  8. Procédé selon une des revendications 1 à 7, caractérisé en ce que la vitesse d'un véhicule (1) est déterminée d'après ses heures d'entrée et de sortie (TS1, TS2) et la longueur (L) de la distance parcourue (2) entre l'entrée et la sortie (3, 4).
  9. Procédé selon une des revendications 1 à 8, caractérisé en ce que, à l'entrée (3) et à la sortie (4), les images (PIC1, PIC2) et les heures d'entrée et de sortie (TS1, TS2) sont pourvues d'une signature électronique d'une station d'entrée respectivement de sortie (6, 7).
  10. Procédé selon une des revendications 1 à 9, caractérisé en ce que, lors de l'accès au premier dispositif de stockage (8), les heures d'entrée et de sortie (TS1, TS2) sont transmises au premier dispositif de stockage (8) et un appel de l'image à l'entrée (PIC1) est ensuite autorisé par le premier dispositif de stockage (8) uniquement si les heures d'entrée et de sortie transmises (TS1, TS2) sont situées à l'intérieur dudit intervalle de temps prédéfini (tmax).
  11. Procédé selon les revendications 9 et 10, caractérisé en ce que les signatures des heures d'entrée et de sortie (TS1, TS2) sont également vérifiées par le premier dispositif de stockage (8).
  12. Procédé selon une des revendications 1 à 11, caractérisé en ce que les images d'entrée et de sortie (PIC1, PIC2), chiffrées avec une clé distincte, sont disponibles pour des interrogations de contrôle dans les dispositifs de stockage correspondants (8, 9, 10).
EP10450197A 2010-12-27 2010-12-27 Procédé d'enregistrement d'image de véhicules Not-in-force EP2469497B1 (fr)

Priority Applications (13)

Application Number Priority Date Filing Date Title
ES10450197T ES2401674T3 (es) 2010-12-27 2010-12-27 Procedimiento para grabar imágenes de vehículos
PL10450197T PL2469497T3 (pl) 2010-12-27 2010-12-27 Sposób wykonywania zdjęć pojazdów
EP10450197A EP2469497B1 (fr) 2010-12-27 2010-12-27 Procédé d'enregistrement d'image de véhicules
PT104501978T PT2469497E (pt) 2010-12-27 2010-12-27 Método para captação de uma imagens de veículos
SI201030145T SI2469497T1 (sl) 2010-12-27 2010-12-27 Postopek fotografiranja vozil
DK10450197.8T DK2469497T3 (da) 2010-12-27 2010-12-27 Fremgangsmåde til optagelse af billeder af køretøjer
CA2756910A CA2756910A1 (fr) 2010-12-27 2011-11-04 Methode de saisie d'images de vehicules
AU2011250695A AU2011250695B2 (en) 2010-12-27 2011-11-10 Method for capturing images of vehicles
NZ596440A NZ596440A (en) 2010-12-27 2011-11-15 Method for capturing images of vehicles
US13/330,379 US20120162432A1 (en) 2010-12-27 2011-12-19 Method for capturing images of vehicles
CN2011104270504A CN102568219A (zh) 2010-12-27 2011-12-19 用于捕获车辆的图像的方法
CL2011003242A CL2011003242A1 (es) 2010-12-27 2011-12-21 Metodo para capturar imagenes de vehiculos que pasan a traves de una seccion o un tramo de una carretera a una velocidad excesiva.
RU2011153165/11A RU2011153165A (ru) 2010-12-27 2011-12-26 Способ захвата изображений транспортных средств

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10450197A EP2469497B1 (fr) 2010-12-27 2010-12-27 Procédé d'enregistrement d'image de véhicules

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EP2469497A1 EP2469497A1 (fr) 2012-06-27
EP2469497B1 true EP2469497B1 (fr) 2012-12-19

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US (1) US20120162432A1 (fr)
EP (1) EP2469497B1 (fr)
CN (1) CN102568219A (fr)
AU (1) AU2011250695B2 (fr)
CA (1) CA2756910A1 (fr)
CL (1) CL2011003242A1 (fr)
DK (1) DK2469497T3 (fr)
ES (1) ES2401674T3 (fr)
NZ (1) NZ596440A (fr)
PL (1) PL2469497T3 (fr)
PT (1) PT2469497E (fr)
RU (1) RU2011153165A (fr)
SI (1) SI2469497T1 (fr)

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AU2011250695A1 (en) 2012-07-12
EP2469497A1 (fr) 2012-06-27
CL2011003242A1 (es) 2013-05-17
NZ596440A (en) 2012-04-27
ES2401674T3 (es) 2013-04-23
AU2011250695B2 (en) 2013-05-23
PT2469497E (pt) 2013-03-11
RU2011153165A (ru) 2013-07-10
DK2469497T3 (da) 2013-04-02
CN102568219A (zh) 2012-07-11
SI2469497T1 (sl) 2013-03-29
CA2756910A1 (fr) 2012-06-27
US20120162432A1 (en) 2012-06-28

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