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Method for designing and querying FlexRay bus database

A query method and database technology, applied in the field of software systems, can solve problems such as difficulty in finding and modifying data, difficulty in ensuring automatic control of the FlexRay bus, inability to realize the functions of machine reading and analysis of FlexRay data files, and achieve a clear and reasonable architecture definition Effect

Inactive Publication Date: 2014-01-15
上海固泰科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there is no uniform standard for the FlexRay bus database of major automobile manufacturers, and many of them are based on Excel spreadsheets or even Word documents to manage FlexRay-related data. The problems brought about by this are: 1. It is very difficult to find and modify the corresponding data; 2. The machine reading and parsing functions of FlexRay-related data files cannot be realized, and it is difficult to guarantee automatic control based on the FlexRay bus

Method used

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  • Method for designing and querying FlexRay bus database
  • Method for designing and querying FlexRay bus database
  • Method for designing and querying FlexRay bus database

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] exist figure 1 , create a FlexRay bus database file (104), which includes a signal table (101), a message table (102) and a node table (103).

[0024] exist figure 2 In the signal table (101), any number of independent signals (201)-(207) can be defined.

[0025] exist image 3 Among them, any number of independent messages (301)-(302) can be defined in the message table (102), and each message contains the independent signal loaded in it, for example, the independent message (301) is loaded with the independent signal (201 )-(203); Independent message (302) is loaded with independent signal (204)-(205).

[0026] exist Figure 4 Among them, any number of independent nodes (401)-(402) can be defined in the node table (103), and each node contains a list of messages sent by it. For example, an independent node (401) sends an independent message (301) and an independent message (302); independent node (402) does not contain sending message.

[0027] exist Figure 4...

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Abstract

The invention relates to a database system based on a FlexRay bus. The database system is formed by three data tables including a signal table, a message table and a node table, the signal table comprises all signal definitions in the network, the message table comprises all message definitions in the network, each message internally comprises a signal defined in the signal table, the node table comprises all node definitions in the network, each node internally comprises sent messages, the messages are defined in the message table, meanwhile, each node comprises the signals received by the node, and the signals are defined in the signal table.

Description

technical field [0001] The invention relates to a software system in the computer field, in particular to a database system based on the FlexRay bus. Background technique [0002] FlexRay is a high-speed, deterministic, fault-tolerant bus system for automobiles. FlexRay satisfies the requirements of The new x-by-wire system design concept has an increasing demand for information transmission speed, especially fault tolerance and time determinism. During the formulation and implementation of the automotive FlexRay bus protocol, it is necessary to encapsulate the signals, messages and nodes defined in the FlexRay network into a database file to realize symbol-based data access, thereby simplifying the work process and providing support for the monitoring and simulation of the FlexRay bus and test build base. [0003] At present, there is no uniform standard for the FlexRay bus database of major automobile manufacturers, and many of them are based on Excel spreadsheets or eve...

Claims

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Application Information

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IPC IPC(8): G06F17/30
CPCG06F16/211
Inventor 刘矗莫莽吴宝红
Owner 上海固泰科技有限公司
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