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.
|Published (Last):||21 March 2007|
|PDF File Size:||11.79 Mb|
|ePub File Size:||8.28 Mb|
|Price:||Free* [*Free Regsitration Required]|
You may improve this articlediscuss the issue on the talk pageor create a new articleas appropriate.
The sender unit produces electronic pulses as the gearbox output shaft turns. The sender unit and head are electronically paired and the pulses from the sender to the head are encrypted, therefore deterring tampering by intercepting or replicating the pulse signal in the intermediate wiring. A digital tachograph is a device fitted to a vehicle that digitally records its speed and distance, together with the driver’s activity selected from a choice of modes.
Tachograph heads are of either analogue or digital types. Type approval Guidelines Click on the following document tachofraph be downloaded: From Wikipedia, the free encyclopedia.
There is no facility to prevent it being inserted back to front, where the styli would be prevented from making contact with the wax surface. The surface can be scratched or rubbed to reveal the black paper underneath.
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. These time periods can be checked fachograph the employers, police and other authorities with the help of the tachograph.
The analogue tachoyraph must be EU type approved. Information is more explicitly defined in digital form and is less likely to be misinterpreted. 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. Automatic heads succeeded manual heads, and differ from them in two main areas.
Federal Office for Information Security (BSI)
Digktaler tachograph is a device fitted to a vehicle that automatically records its speed and distance, together with the driver’s activity selected from a choice of modes.
All data can still be retrieved by use of a control card or a workshop card. The tachograph was originally introduced for the railroads so that companies could better document irregularities. A complete deflection tachlgraph created every 5 kilometres, and therefore each completed ‘V’ represents 10 kilometres travelled. Fears that it is easy to falsify readings by tampering with tachographs have been allayed, since it is relatively easy to spot such attempts.
Secondly, the activity is displayed on the chart as a sequence of block traces of differing thickness. Later analogue tachograph head models are of a modular design, enabling the head to fit into a standard DIN slot in the vehicle dashboard. For the tachygraph, an early communications device, see Claude Chappe.
Publication of seals standard EN Samples Keys for Smart Tachograph v1. Domestic hours regulations were replaced by European regulations which were complicated.
Speed limits by country. Without a digital card reader, computer and analysis software, 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.
The digital data stored by the tachograph system can be analysed by computer and infringements automatically identified. A digital tachograph system consists of a digital driver card, the tachograph headand a sender unit mounted to the vehicle gearbox. This page was last edited on 24 Augustat Finally, some of the advantages of tachographs apply primarily to drivers who can rely upon the support of a trade union.
Apart from enforcing regulations, tachographs are often used in Germany to investigate and punish tachhograph.
Views Read Edit View history. By comparing the end position of the trace for tachogaph particular day against the start position for the following day, it can be seen if the vehicle has moved in the intermediate period.
As well as automatically receiving speed data, the tachograph records the driver’s activity selected from a choice of modes. December Learn how and when to remove this template message.
These tachogrwph are interpreted as speed data by the head. Tachograph data, once correlated, provides valuable data to the haulage company. The trace closest to ttachograph centrefield is the distance trace. Three traces are made in the wax surface by the head.
The standard EN “Road vehicles – Security of the mechanical seals used on tachographs digitaleer Requirements and test procedures” is yet available. On 18 March the European Commission adopted legislation defining the new technical specifications for smart tachographs.
These traces are either made by three separate styli or a single multipurpose stylus.
Digital tachograph – Wikipedia
Media related to Tachographs at Wikimedia Commons. The chart features a pear-shaped aperture in the centre, ensuring it is perfectly aligned upon insertion into the tachograph head.
This article needs additional citations for verification. Information on the standard can be found here: 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.
The inventor was Max Maria von Webera civil servant, engineer and author. Retrieved from ” https: