Data Processing Arrangement and the Operation Mode Thereof
First Claim
1. A data processing arrangement, or a tachograph for a motor vehicle comprising a controller and at least one memory,wherein at least one partial area of the memory is formed as a sequence memory and the controller is formed in such a way that the sequences of the data processing arrangement or of the tachograph are logged in the sequence memory, wherein the sequence memory has at least one ring memory which is organized in circular fashion and is formed in such a way that an oldest entry can be overwritten respectively by a newest entry, and the sequence memory has at least one linear memory which is organized in linear fashion.
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Accused Products
Abstract
A data processing arrangement, in particular a tachograph for a motor vehicle has a control device and at least one memory. The traceability of an error arising during the data processing arrangement operation can be better guaranteed. At least one partial area of the memory is embodied in the form of a sequence memory and a control device is constructed such that sequences of the data processing arrangement or of the tachograph are recorded in the sequence memory, wherein the sequence memory is provided with at least one ring memory which is organised such that an oldest input is overwritten by a new input, respectively. Thus, it is made possible to record a plurality of sequential events leading to a substantial error in the sequence memory such that the size of the memory is increased within economically acceptable limits during a long operation of the arrangement.
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Citations
19 Claims
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1. A data processing arrangement, or a tachograph for a motor vehicle comprising a controller and at least one memory,
wherein at least one partial area of the memory is formed as a sequence memory and the controller is formed in such a way that the sequences of the data processing arrangement or of the tachograph are logged in the sequence memory, wherein the sequence memory has at least one ring memory which is organized in circular fashion and is formed in such a way that an oldest entry can be overwritten respectively by a newest entry, and the sequence memory has at least one linear memory which is organized in linear fashion.
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3. A method for the operation of a data processing arrangement or a tachograph, comprising a controller and at least one memory,
the method comprising the steps of: forming at least one partial area of the memory as a sequence memory and logging the sequences of the data processing arrangement or of the tachograph in the sequence memory, wherein the sequence memory has at least one ring memory which is organized in circular fashion and is formed in such a way that the oldest entry is overwritten respectively by the newest entry, and the sequence memory has at least one linear memory which is organized in linear fashion. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A tachograph for a motor vehicle comprising:
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a sequence memory having a ring memory and a linear memory, and a controller operable to log the sequences of the tachograph in the sequence memory, wherein the ring memory is organized in circular fashion and is formed in such a way that an oldest entry can be overwritten respectively by a newest entry, and the linear memory is organized in linear fashion.
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Specification