EP2259231A1 - Digitaler Tachograph und Verfahren zur Aufzeichnung von mit einem Fahrzeug zusammenhängenden Daten - Google Patents

Digitaler Tachograph und Verfahren zur Aufzeichnung von mit einem Fahrzeug zusammenhängenden Daten Download PDF

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Publication number
EP2259231A1
EP2259231A1 EP09162059A EP09162059A EP2259231A1 EP 2259231 A1 EP2259231 A1 EP 2259231A1 EP 09162059 A EP09162059 A EP 09162059A EP 09162059 A EP09162059 A EP 09162059A EP 2259231 A1 EP2259231 A1 EP 2259231A1
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EP
European Patent Office
Prior art keywords
related data
vehicle related
digital tachograph
signing
unload
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Withdrawn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
EP09162059A
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English (en)
French (fr)
Inventor
Mikael Jansson
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.)
Stoneridge Electronics AB
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Stoneridge Electronics AB
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 Stoneridge Electronics AB filed Critical Stoneridge Electronics AB
Priority to EP09162059A priority Critical patent/EP2259231A1/de
Publication of EP2259231A1 publication Critical patent/EP2259231A1/de
Withdrawn legal-status Critical Current

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    • 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
    • G07C5/008—Registering or indicating the working of vehicles communicating information to a remotely located station
    • 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
    • G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
    • G07C5/0841—Registering performance data
    • G07C5/085—Registering performance data using electronic data carriers

Definitions

  • the present invention relates generally to tachographs, and particularly to recording of vehicle related data thereon.
  • a digital tachograph is a recording and control device for road transport.
  • the digital tachograph is generally composed of a Vehicle Unit (VU) containing a printer, two slots for smart cards and a display.
  • VU Vehicle Unit
  • the VU is connected to a gearbox of a vehicle it is installed in, and the number of revolutions per minute is measured by a secure motion sensor and sent to the VU encrypted.
  • the VU is arranged to continuously record and store data about vehicle related activities and violations of a driver of the vehicle in a VU memory and on the driver's personal smart card.
  • vehicle related data stored are driver activities, durations, speeding, warnings of suspected tampering and other technical data.
  • the driver's current activity is recorded at regular intervals, and the activity of driving is automatically recorded. When the vehicle is stationary, it is possible for the driver to select among non-driving activities.
  • Drivers are prompted, at smart card insertion into the VU, to do manual inputs of activities that happened between last smart card withdrawal and current insertion, with start and end time for each activity and daily working period. If no manual input of activities is entered this period is registered as unknown.
  • Vehicle related data is upon request unloaded from the tachograph to an unload equipment, or unloading device, which unload equipment selects which days of vehicle related data are to be unloaded.
  • the tachograph starts to digitally sign the respective days. Each respective day is today by law required to be a digitally signed binary file.
  • the vehicle related data signed by the tachograph is thereafter unloaded to the unload equipment.
  • the purpose of the digitally signed vehicle related data is for law enforcement or other controlling authority to check if the vehicle related data is manipulated or not.
  • a problem with the present way of recording and unloading of vehicle related data in a tachograph is that the signing is required to be performed by a secure processor of the tachograph which generally has limited processing capacity, making signing and unloading of vehicle related data taking undesirably long time.
  • An object of the present invention is to significantly reduce the time it takes to record and unload data from the digital tachograph.
  • a digital tachograph for recording vehicle of related data, comprising an interface for transferring vehicle related data to the digital tachograph, a vehicle related data memory for storing vehicle related data, a signing processor for signing vehicle related data, and an interface for unloading vehicle related data from the digital tachograph
  • the digital tachograph comprises: selecting means for selecting vehicle related data from the vehicle related data memory according to criteria stored in a criteria memory; initiating means for initiating pre-signing of vehicle related data stored in the vehicle related data memory and selected according to the criteria, wherein the signing processor is configured to perform the pre-signing; and an unload memory for storing pre-signed vehicle related data signed by the signing processor so that it can be unloaded from the digital tachograph, the amount of time unloading of data takes is significantly reduced.
  • the recording efficiency is improved.
  • the criteria is one or more of the following: a certain time, a certain time period, a border crossing, a certain time within a country, a driver change, a certain time period for last driver, a trip ended, a certain trip length, and a freezer broken or a signal from another apparatus related to the vehicle, wherein preferably the certain time is 24:00, and the certain time period is one or more of the following: last hour, 12h, 24h, week, month, and year.
  • the digital tachograph preferably comprises means to automatically unload pre-signed vehicle related data from the unload memory to an unload device via the unload interface.
  • the unload criteria is preferably stored in an unload criteria memory, and advantageously is one of the following: signed data is put into the unload memory; the driver is changed; a certain time; a freezer is broken; and a regulation is broken.
  • the unload interface is preferably one of the following: a radio interface, GSM, 3G, 4G, WLAN and Bluetooth.
  • the vehicle related data memory is preferably integrated with the signing processor.
  • the vehicle related data memory is preferably arranged in a smart card connected to the digital tachograph.
  • the digital tachograph 1 comprises driver identifier means 2 and 3, processing means 4, a user interface 5, a printer 6, a first connection port 7 and a second connection port 8.
  • the driver identifier means preferably has two smart card readers as parts of an interface 7 for transferring vehicle related data: a first smart card reader 2 for a current driver and a second smart card reader 3 for a possible secondary driver, a so called co-driver.
  • the smart card readers are configured to receive a smart card 15 identifying a driver and co-driver, respectively, which smart card 15 is used to verify the identity of the driver currently responsible for generating vehicle related data on the digital tachograph 1.
  • the driver identifier means utilizes a wireless connection for remote identification of a driver and co-driver, respectively, such as through RFID, Bluetooth, or similar connection.
  • the driver or co-driver is preferably identified by verification means supporting such as remote identification, such as verification through a personal mobile phone, a personal PDA, or similar device.
  • the processing means 4 has a secure processing unit e.g. for reliable handling of driver identification, storing of authenticity certificates, storing of driving data (revolutions per minute) received from a gear box of a vehicle the digital tachograph is installed into, via a secure motion sensor, and for digital signing of vehicle related data, i.e. functioning as a signing processor 4 for signing vehicle related data.
  • the vehicle related data includes i.a. driving data and driver activities.
  • the digital tachograph comprises a vehicle related data memory 9 for storing vehicle related data, which memory the secure processing unit utilizes for secure storing of data.
  • the secure processing unit has limited processing resources and the processing means 4 preferably also comprises a second processing unit relieving the secure processing unit of non-secure processing, such as user interface communication, printing, etc.
  • the second processing unit preferably also communicates directly with the secure motion sensor, and forwards driving data from the secure motion sensor to the secure processing unit, in this way removing the need for a separate connector on the secure processing unit for connection to the secure motion sensor.
  • the limited processing resources of the secure processing unit e.g. results in that signing of a 24 hours of vehicle related data today takes about three seconds, and a typical unloading request of 365 days of signing thus takes about 19 minutes.
  • the user interface 5 comprises input means for e.g. manual entry of data and a small display for display of e.g. driver activity.
  • the printer 6 is e.g. used for printouts of registered driver activity, verification of manually input driver activity, or other vehicle related data.
  • the first connection port 7, also a part of the interface 7 for transferring vehicle related data to the digital tachograph, is configured for connection to a CAN-bus of the vehicle the tachograph is installed in, through which CAN-bus driving data is procured from the secure motion sensor.
  • the second connection port 8 is configured for connection to i.a. unloading equipment for unloading of vehicle related data, i.e functioning as an interface 8 for unloading vehicle related data from the digital tachograph.
  • An unloading equipment is usually a portable device, preferably a so called unloading device, which is used for unloading of signed vehicle related data, typically for unloading of a plurality of days at each unloading occasion.
  • the days that are to be unloaded from the digital tachograph are selected by the unloading device, and they are not known beforehand of the digital tachograph.
  • Unloading of data is traditionally performed through the second connection port 8, being a serial front port of the digital tachograph 1. It is alternatively also possible to unload signed vehicle related data through the first connection port 7, i.e. through the CAN-bus, or yet alternatively through e.g. a wireless connection such as a Bluetooth or IR connection.
  • the digital tachograph comprises selecting means 10, preferably the secure processing unit, for selecting vehicle related data from the vehicle related data memory according to criteria stored in a criteria memory 16.
  • the digital tachograph further comprises initiating means 11, preferably the secure processing unit, for initiating pre-signing of vehicle related data stored in the vehicle related data memory and selected according to the criteria stored in the criteria memory 16, wherein the signing processor 4, preferably the secure processing unit, is configured to perform the pre-signing.
  • pre-signing is referred to that the signing is performed without an unload instruction from an unload equipment.
  • the digital tachograph also comprises an unload memory 12 for storing pre-signed vehicle related data signed by the signing processor 4 so that it swiftly can be unloaded from the digital tachograph.
  • the vehicle related data memory is e.g. integrated in a chip with the signing processor 4.
  • the vehicle related data memory is arranged separated from the signing processor 4.
  • the criteria memory 16 and the unload memory 12 are integrated in a chip with the vehicle related data memory.
  • the vehicle related data memory, unload memory 12, etc. is alternatively arranged in a smart card 15 connected to the digital tachograph. In this way unloading of signed vehicle related data could be performed by simply removing such a smart card 15 from the digital tachograph.
  • Another smart card 15 can be used to replace the removed smart card 15, and the digital tachograph and the vehicle it is installed in are immediately ready for further utilization.
  • queuing means 4 preferably the secure processing unit, for queuing tasks to be performed by the signing processor 4, in which way the signing processor 4 can be utilized in an optimal way.
  • the criteria used to select which vehicle related data to pre-sign is preferably based on one or more of the following pre-sign criteria: a certain time, a certain time period, a border crossing, a certain time within a country, a driver change, a certain time period for last driver, a trip ended, a certain trip length, and a freezer broken or a signal from another apparatus related to the vehicle.
  • the certain time is preferably 24:00, and the certain time period is preferably one or more of the following: last hour, 12h, 24h, week, month, and year.
  • the single criterion for unloading of vehicle related data is whole days.
  • a non-driving related control signal is signaling a limit broken, such as to high temperature in a cargo, this is preferably registered by the digital tachograph and pre-signed, in order to prevent the driver from manipulating this information. Also signals from other apparatuses related to the vehicle can be registered and pre-signed by the digital tachograph.
  • the digital tachograph preferably comprises means 4, preferably the secure processing unit, to automatically unload pre-signed vehicle related data from the unload memory 12 to an unload device 13 via the unload interface, wherein the automatic unload preferably is performed according to unload criteria stored in an unload criteria memory 14, preferably related to the vehicle related data memory.
  • a trigger for initiating automatic unloading of pre-signed vehicle related data is preferably based on one of the following unload criteria: pre-signed data is stored in the unload memory 12; the driver is changed; a certain time; vehicle stopped; all smart cards removed from the digital tachograph; the ignition turned off; a freezer or other control signal is broken; and a regulation is broken.
  • unload interfaces For a facilitated unload interface of the digital tachograph one or more of the following unload interfaces is preferably used: a radio interface, GSM, 3G, 4G, WLAN and Bluetooth.
  • a radio interface GSM, 3G, 4G, WLAN and Bluetooth.
  • Recording of vehicle related data thus comprises the steps of: procuring vehicle related data; pre-signing selected procured vehicle related data, wherein the pre-signing is initiated according to a criteria stored in the digital tachograph; and storing the pre-signed vehicle related data in the digital tachograph for later unloading thereof.
  • Pre-signing is preferably initiated when a day has begun, i.e. 24:00, and unloading of the signed vehicle related data from the digital tachograph to an unload equipment is preferably initiated upon request from the unload equipment.
  • Vehicle related data is continuously collected and saved into the secure vehicle related data memory, belonging to the secure processing unit, of the tachograph when the smart card 15 is positioned in the first or second smart card reader. Further, manually input driver activity data is preferably also collected and saved into the secure vehicle related data memory, belonging to the secure processing unit, of the digital tachograph.
  • vehicle related data is saved as a binary file in the secure vehicle related data memory of the secure processing unit.
  • vehicle related data is assembled together on a day by day basis.
  • Other types of assembly of vehicle related data is however possible, such as hour based assembly.
  • Hour based vehicle related data can later be concatenated to a whole day.
  • vehicle related data for a required period in this case a day
  • vehicle related data has been saved in a binary file that vehicle related data is queued for pre-signing, i.e. the digital signing has been initiated.
  • the digital signing digitally signs the binary file first in the signing queue, i.e. when data processing capacity is available.
  • Digital signing combines the data to be signed and a digital certificate (the private key thereof) to a small amount of data in a digital signature. It is thereafter possible to check and verify the authenticity of the original data by utilization of the data to be verified, the digital signature and the digital certificate (the public key thereof), or a digital certificate (the public key thereof) higher up in its certificate hierarchy.
  • a digital certificate is an electronic document which uses a digital signature to bind together a public key of the digital certificate with an identity - information such as the name of a person or an organization, their address, and so forth, which is responsible for the original data.
  • the certificate can be used to verify that a public key belongs to an individual.
  • the pre-signed vehicle related data is unloaded from the digital tachograph to the unload equipment, typically being an unloading device.
  • the digital tachograph does not have the requested vehicle related data stored pre-signed digital signing is initiated for signing and unloading thereof.
  • the signed data i.e. the digital signature and the vehicle related data, for a day is alternatively stored additionally on a separate memory position, such that it is even more swiftly transferable to the unload equipment, however at the cost of extra memory utilization.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Traffic Control Systems (AREA)
  • Time Recorders, Dirve Recorders, Access Control (AREA)
EP09162059A 2009-06-05 2009-06-05 Digitaler Tachograph und Verfahren zur Aufzeichnung von mit einem Fahrzeug zusammenhängenden Daten Withdrawn EP2259231A1 (de)

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Application Number Priority Date Filing Date Title
EP09162059A EP2259231A1 (de) 2009-06-05 2009-06-05 Digitaler Tachograph und Verfahren zur Aufzeichnung von mit einem Fahrzeug zusammenhängenden Daten

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EP09162059A EP2259231A1 (de) 2009-06-05 2009-06-05 Digitaler Tachograph und Verfahren zur Aufzeichnung von mit einem Fahrzeug zusammenhängenden Daten

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2973136A1 (fr) * 2011-03-25 2012-09-28 France Telecom Verification de l'integrite de donnees d'un equipement embarque dans un vehicule
EP2509049A1 (de) 2011-04-06 2012-10-10 Scania CV AB Fahrzeug mit einem Fahrtenschreiber

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6141611A (en) * 1998-12-01 2000-10-31 John J. Mackey Mobile vehicle accident data system
US6490513B1 (en) 2001-08-22 2002-12-03 Matsushita Electrical Industrial Co., Ltd. Automobile data archive system having securely authenticated instrumentation data storage
US20080059701A1 (en) 2004-06-25 2008-03-06 Esfandabadi Riaz H Data Transmission In An Arrangement Comprising A Tachograph
DE102006048029A1 (de) 2006-10-09 2008-04-10 Siemens Ag Verfahren und Vorrichtung zur Übertragung von Daten zwischen einem Fahrtschreiber und einer Datenverarbeitungseinrichtung
DE102007036589A1 (de) 2007-08-02 2009-02-05 Continental Automotive Gmbh Verfahren zum Betreiben eines Tachographen und Tachograph

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6141611A (en) * 1998-12-01 2000-10-31 John J. Mackey Mobile vehicle accident data system
US6490513B1 (en) 2001-08-22 2002-12-03 Matsushita Electrical Industrial Co., Ltd. Automobile data archive system having securely authenticated instrumentation data storage
US20080059701A1 (en) 2004-06-25 2008-03-06 Esfandabadi Riaz H Data Transmission In An Arrangement Comprising A Tachograph
DE102006048029A1 (de) 2006-10-09 2008-04-10 Siemens Ag Verfahren und Vorrichtung zur Übertragung von Daten zwischen einem Fahrtschreiber und einer Datenverarbeitungseinrichtung
DE102007036589A1 (de) 2007-08-02 2009-02-05 Continental Automotive Gmbh Verfahren zum Betreiben eines Tachographen und Tachograph

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2973136A1 (fr) * 2011-03-25 2012-09-28 France Telecom Verification de l'integrite de donnees d'un equipement embarque dans un vehicule
WO2012131245A1 (fr) * 2011-03-25 2012-10-04 France Telecom Verification de l'integrite de donnees d'un equipement embarque dans un vehicule
US20140025955A1 (en) * 2011-03-25 2014-01-23 Orange Verifying the integrity of data from equipment on board a vehicle
US10491397B2 (en) 2011-03-25 2019-11-26 Orange Verifying the integrity of data from equipment on board a vehicle
EP2509049A1 (de) 2011-04-06 2012-10-10 Scania CV AB Fahrzeug mit einem Fahrtenschreiber

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