Data processing arrangement and the operation mode thereof
A technology of a data processing device and a control device, which is applied in the registration/indication of vehicle operation, instruments, registration/instruction, etc., can solve the problems of tampering with records, large storage space, unpredictability, etc., and achieve the effect of reliable error formation
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[0011] figure 1 A digital tachograph DTCO is shown, which has a sequence memory SEQ according to the invention as a component of the memory MEM. The tachograph DTCO comprises a control unit CPU, which generally regulates the sequence (or sequence) of the tachograph DTCO and in particular the reading and writing of the sequence memory SEQ. The sequence memory SEQ is composed of a ring memory RNG and a linear memory LIN. The ring memory RNG is written by the control unit CPU in such a way that if a complete registration has taken place, the respective oldest entry OER is overwritten by the respective latest entry NER. In the linear memory, multiple record items are continuously stored under the address, wherein the oldest record item OEL in the linear memory is at the low address, and the newest record item NEL in the linear memory is at the highest registered address. Multiple record items register different events E, which occur when each function module FM1, FM2 is running....
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