EP2385502A1 - Procédé de numérisation des informations contenues dans des tachygraphes analogues - Google Patents

Procédé de numérisation des informations contenues dans des tachygraphes analogues Download PDF

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Publication number
EP2385502A1
EP2385502A1 EP10004665A EP10004665A EP2385502A1 EP 2385502 A1 EP2385502 A1 EP 2385502A1 EP 10004665 A EP10004665 A EP 10004665A EP 10004665 A EP10004665 A EP 10004665A EP 2385502 A1 EP2385502 A1 EP 2385502A1
Authority
EP
European Patent Office
Prior art keywords
analogue
digitisation
information contained
tachographs
driver
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.)
Withdrawn
Application number
EP10004665A
Other languages
German (de)
English (en)
Inventor
Jokin Santurde López
Luis Unzueta Irurtia
Jose Javier Barandiaran Martirena
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.)
Fundacion Centro De Tecnologias De Interaccion Vis
GURETRUCK SL
Original Assignee
Guretruck SL
Fundacion Centro de Tecnologias de Interaccion Visual y Comunicaciones Vicomtech
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 Guretruck SL, Fundacion Centro de Tecnologias de Interaccion Visual y Comunicaciones Vicomtech filed Critical Guretruck SL
Priority to EP10004665A priority Critical patent/EP2385502A1/fr
Publication of EP2385502A1 publication Critical patent/EP2385502A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/002—Analysing tachograph charts

Definitions

  • Digitisation method of the information contained in analogue tachographs Digitisation method of the information contained in analogue tachographs.
  • the invention relates to a method for extraction of the information contained in the charts on which the card information is stored in today's analogue tachographs, said method can be extended to other types of system based on the graphic recording of symbols on paper in the same way as, for example, electrocardiograms, polygraphs, etc.
  • tachograph cards Today, methods of reading and interpretation of tachograph cards are based, with the aid of template registers, on the visual interpretation thereof.
  • a typical manual tachograph card reader is based on a system with an illuminated magnifying lens and a small keyboard for the operator and several coloured diodes which act as visual aids for the operator of the device.
  • the object of the present invention is to provide an electronic reading method for tachograph cards providing remarkable improvements in reading speed, precision and efficiency of the reading of data, as well as to convert said reading in texts or numbers without the need for human visual interpretation of data.
  • Digitisation method of the information contained in analogue tachographs which is robust against noise in the main chart, allowing to determine automatically the position and orientation of the card from the scanned image of an analogue card, converting the information recorded in a circular manner to linear for the automated extraction of the parameters of start and final end of the period of activity of the driver, as well as events occurring during said period, according to the flow diagram shown in Figure 2 .
  • the method consists of three steps: 1) detection of the card, 2) calculation of its orientation, and 3) data extraction.
  • the method allows extraction of the following information: 3.1) extraction of events, 3.2) detection of driver and co-driver, i.e. when the driver works as part of a team, periods, and 3.3) calculation of the distance travelled.
  • Step 1 Detection of the card
  • the card is detected in the image by means of contrast analysis. This process is executed on the image rescaled to a smaller size for speeding up the process.
  • the variance in the image is calculated for each area and the card is detected by means of horizontal and vertical projections ( Figure 9 ).
  • the diameter of the card is determined as the largest dimension from width and height of the detected card.
  • the calculation of the orientation of the card consists of the detection of the direction at 12 hours and at 24 hours.
  • the centre shape of a card is shown in figure 10 .
  • the method consists of adjusting the image to a 2D model which has been predefined as a list of dots.
  • the cartesian coordinates of the image are converted to polar coordinates to obtain an unfolded image of the card. From this image, the information contained in the card is extracted.
  • the events on the activity trace are extracted by measuring the thickness of the signal line.
  • the start and end of the activity are calculated from the list of events obtained searching for the largest gap between events of the same day or of consecutive days.
  • An event will be classified as "co-driver" when it relates to driving and shows a zero speed line. This process consists of detecting the zero speed line and searching for gaps on it.
  • Step 3-Case 3 Calculation of the distance travelled
  • the process will consist on detecting the skeleton of the distance trace, and then detecting the rise and fall peaks. Each rise or fall represent 5 km of distance travelled. The output is a list giving distance travelled each minute and the list of peaks.
  • Figure 13 shows and example of the digitisation ouput of an analogue card obtained using the described methods, showing a correct unfolding of the image and how initial and final positions of the period of activity and of the different events are obtained from it.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
EP10004665A 2010-05-04 2010-05-04 Procédé de numérisation des informations contenues dans des tachygraphes analogues Withdrawn EP2385502A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10004665A EP2385502A1 (fr) 2010-05-04 2010-05-04 Procédé de numérisation des informations contenues dans des tachygraphes analogues

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10004665A EP2385502A1 (fr) 2010-05-04 2010-05-04 Procédé de numérisation des informations contenues dans des tachygraphes analogues

Publications (1)

Publication Number Publication Date
EP2385502A1 true EP2385502A1 (fr) 2011-11-09

Family

ID=42735839

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10004665A Withdrawn EP2385502A1 (fr) 2010-05-04 2010-05-04 Procédé de numérisation des informations contenues dans des tachygraphes analogues

Country Status (1)

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EP (1) EP2385502A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993008543A1 (fr) * 1991-10-16 1993-04-29 Trutac Limited Procede et appareil de lecture des diagrammes de tachygraphes
DE19941631A1 (de) * 1999-09-01 2000-06-21 Bunjes Gerd Digital-Analyse von Automatik-Diagrammscheiben
EP1146486A2 (fr) * 2000-04-13 2001-10-17 Daito Mechatronics Co. Ltd. Système pour analyser l'état de fonctionnement d'un vehicule
US20060264769A1 (en) * 2005-05-13 2006-11-23 Cardiocore Lab, Inc. Method and apparatus for rapid interpretive analysis of electrocardiographic waveforms

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993008543A1 (fr) * 1991-10-16 1993-04-29 Trutac Limited Procede et appareil de lecture des diagrammes de tachygraphes
DE19941631A1 (de) * 1999-09-01 2000-06-21 Bunjes Gerd Digital-Analyse von Automatik-Diagrammscheiben
EP1146486A2 (fr) * 2000-04-13 2001-10-17 Daito Mechatronics Co. Ltd. Système pour analyser l'état de fonctionnement d'un vehicule
US20060264769A1 (en) * 2005-05-13 2006-11-23 Cardiocore Lab, Inc. Method and apparatus for rapid interpretive analysis of electrocardiographic waveforms

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ANTONACOPOULOS, A..; Y KENNEDY, A.P.: "An Automated Tachograph Chart Analysis System", PROCEEDINGS OF THE INTERNATIONAL WORKSHOP ON DOCUMENT ANALYSIS SYSTEMS, 2002
ANTONACOPOULOS, A.; Y KENNEDY, A.P.: "Information Extraction from Complex Circular Charts", PROCEEDINGS OF THE CONFERENCE ON DOCUMENT ANALYSIS AND RECOGNITION, 2001, pages 784 - 787, XP010560612, DOI: doi:10.1109/ICDAR.2001.953895

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