Since , tachographs are digital, which allows a more secure and accurate recording and storage of data than the previous analogue tachograph. European Commission – JRC Ispra – Digital Tachograph official website Digital Tachograph Smart Tachograph. Dear user,. The DTCO digital tachograph, with its system components, is an EC recording de- vice that complies with the technical.

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Tachograph – Wikipedia

This includes the drivers name, the date s the disc refers to, the start and end odometer readings and the registration mark of the vehicle. A digital tachograph system consists of a digital driver card, the tachograph headand a sender unit mounted to the vehicle gearbox.

Information is more explicitly defined in digital form and is less likely to be misinterpreted. You may improve this articlediscuss the issue on the talk pageor create a tachkgraph articleas appropriate.

As well as automatically receiving speed data, the tachograph records the driver’s activity selected from a choice of modes. A tachograph system comprises a sender unit mounted to the vehicle gearbox, the tachograph head and a recording medium. Fears that it is easy to falsify readings by tampering with tachographs have been allayed, since it is relatively easy to spot such attempts.

Without a digital card reader, computer and analysis digtaler, the data can be more difficult to interpret as it is not visually represented as the analogue chart is, and requires mathematical calculations to decipher the information from its presented format. Smart tachographs are the new generation of on-board mandatory digital recorders to enforce the EU legislation on professional drivers driving and resting times social regulation.

Media related to Tachographs at Wikimedia Commons.

Automatic heads succeeded manual heads, and differ from them in two main areas. Most tachographs produced prior to 1 May were of the analogue type.

Digital Tachograph Smart Tachograph

Unsourced material may be challenged and removed. Tachographs are also useful after an accident to help establish the cause and corroborate eye witness accounts.

Apart from enforcing regulations, tachographs are often used in Germany to investigate and punish speeding. For reasons of public safety, many jurisdictions have limits on the working hours of drivers of certain vehicles, such as buses and trucks. When the use of tachographs was imposed by the European Union on its member states in the s, governments and operating companies were opposed on the grounds that tachographs were expensive and unnecessary, and contributed nothing to road safety.


Speed limits by country. Please help improve this article by adding citations to reliable sources. Some Renault branded tachograph heads can produce printed information in a graphical format, similar in appearance to the activity trace on an analogue tachograph chart. Traffic law and safety. By using this site, you agree to the Terms of Use and Privacy Policy.

Multiple overlapping traces may still be deciphered in the speed and distance fields, but it is far more difficult for the activity field where one trace can easily be obliterated by another.

Information on the standard can be found here:. This enables the traces to be made without the use of ink. The chart is manufactured out of heavyweight paper with a black printed face that is thinly coated with a white wax, upon which is printed a number of features.

Communications regarding new ERCA policy and National policies review request for signing certificates, test keys must be addressed to: For the tachygraph, an early communications device, see Claude Chappe.

Views Read Edit View history. The stylus moves up and down with distance travelled, producing a zig-zag pattern, often rigitaler to as a ‘V’ trace. Digital driver cards store data in a format that can later also be read out as a. Unauthorized digltaler of the tachlgraph and then discarding one digtaler the two, so that some activities are “forgotten” is well known throughout Europe. In other projects Wikimedia Commons.

In Europe, drivers are legally required to accurately record their activities, retain the records and produce them on demand to transport authorities who are charged with enforcing regulations governing drivers’ working hours. Analogue tachograph heads provide no indication to the driver of the need to change the disc.

However, more sophisticated ways to interrupt the signals sent to the digital tachograph have since been created, including the use of magnets. December Learn how and when to remove this template message. From Wikipedia, the free encyclopedia. Tacnograph recording medium for analogue heads are wax coated paper discs, and for digital heads there are two recording mediums: Drivers and their trade unions initially opposed the use of tachographs because they feared that employers would examine the records and reduce the driver’s pay for any time stopped, even if the stop was for a good reason, such as checking the vehicle or going to the toilet.


This article has multiple issues. This ensures that the data cannot be retrieved by another company should the vehicle subsequently change ownership, or in the case or lease or hire vehicles that are used by many companies during their life. Road transport Road traffic management Traffic law Road safety Automotive technologies Measuring instruments. Please help improve it or discuss these issues on the talk page. This article tachogeaph about the device used for recording vehicle data.


They are also used in the maritime world, for example through the Central Commission for Navigation on the Rhine. From Wikipedia, the free encyclopedia. The driver’s activity is displayed in this area, and is always displayed as either driveother workavailability or rest. Today operators see tachographs as levellers—devices which prevent unfair competition from companies who force their drivers to work excessive hours.

This practice was approved by the German high regional court in the s. The trace closest to the centrefield is the distance trace. Please help improve this article by adding citations to reliable sources. When an analogue chart is visually analysed, a margin of error is present, dependent on the quality of the recording and the skill level of the analyst.

The country of type approval can be found on the rear of the chart, i. Learn how and when to remove these template messages.

If the disc is left in the head over 24 hours, a second trace will be written onto the first, and so on until the disc is removed.