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DBC signal export start bit format conversion method and system

A format conversion and signal export technology, which is applied in the DBC signal export start bit format conversion method and system field, can solve the problem that the CANDB++ format start bit is different from the text format definition start bit, etc.

Pending Publication Date: 2022-07-01
ZHIJI AUTOMOTIVE TECH CO LTD
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Problems solved by technology

[0003] For the above defects or improvement needs of the prior art, the invention provides a DBC signal derived start bit format conversion method and system, which can effectively solve the CANDB++ format start bit and the CANDB++ format start bit that occurs when the existing DBC signal is exported and converted to a Motorola format signal. The text format defines the problem of different starting bits, and generates the correct Excel table file

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  • DBC signal export start bit format conversion method and system
  • DBC signal export start bit format conversion method and system
  • DBC signal export start bit format conversion method and system

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[0025] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present application. Accordingly, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0026] Whether it is Motorola format or Intel format, the start bit of a DBC file opened in CANDB++ is the lowest bit (LSB), such as figure 1 and figure 2 As shown, both the Intel format and the Motorola format are signals with a start bit of 30 and a signal length of 24 Bit. In the text format, ...

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Abstract

The invention discloses a DBC signal export start bit format conversion method and a DBC signal export start bit format conversion system. The method comprises the steps that data information in a DBC file is extracted, and a start bit, byte length and a byte sequence are obtained; judging a signal format corresponding to the byte sequence; when the byte sequence is in an Intel format, importing a numerical value of a lowest signal bit (LSB) into an Excel table according to a defined text format specification; and when the byte sequence is in a Motora format, according to a defined text format specification, acquiring a highest signal bit (MSB) in the text format, calculating and converting the MSB into a lowest signal bit (LSB), and importing a numerical value of the LSB into an Excel table. According to the method, a Motora format signal start bit in a DBC text format is accurately calculated and converted into a start bit in CANDB + +, and the start bit is imported into an Excel table, so that the imported start bit is required by design.

Description

technical field [0001] The invention belongs to the technical field of automobile database development, and more particularly, relates to a method and a system for converting a starting bit format of a DBC signal derivation. Background technique [0002] The DBC file is a file that describes the data communication between CAN network nodes. The .dbc file is a file in ASCII format, and its .dbc extension can be used to define the CAN network. In the process of automobile network development, the DBC database is inseparable. In order to conveniently view the communication matrix information in the DBC, it is necessary to import the existing DBC into an Excel table. At present, there are many DBC import tools, some use EXCEL VBA, some use Python, these import tools will face the problem that the motorola format signal start bit in CANDB++ format is different from that in text format during the conversion process, many tools will directly convert the text The start bit in the f...

Claims

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Application Information

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IPC IPC(8): G06F16/11
CPCG06F16/116
Inventor 殷婷婷
Owner ZHIJI AUTOMOTIVE TECH CO LTD
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