COM layer communication time limit monitoring method based on AUTOSAR

A time-limited, communication entity technology, applied in digital transmission systems, electrical components, transmission systems, etc., can solve the problems of occupying Alarm resources, long interruption time of clock off, affecting time accuracy, etc., to achieve high transceiver efficiency and low transceiver overhead. , the effect of convenient debugging

Active Publication Date: 2011-11-02
ZHEJIANG UNIV
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AI Technical Summary

Problems solved by technology

[0015] (1) The user needs to configure too many monitoring alarms, which directly causes the problem of occupying too many alarm resources of the system, making it difficult to maintain and debug
[0016] (2) During the maintenance process, it is necessary to traverse too many monitoring alarms, which takes too much time, and may cause too many operations in the interruption, resulting in too long interruption time of the clock off, which will affect the accuracy of the sending time

Method used

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  • COM layer communication time limit monitoring method based on AUTOSAR
  • COM layer communication time limit monitoring method based on AUTOSAR
  • COM layer communication time limit monitoring method based on AUTOSAR

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Embodiment Construction

[0036] like Figure 5 As shown, the COM layer communication time limit monitoring method based on AUTOSAR of the embodiment of the present invention, its implementation steps are as follows:

[0037] 1) Establish a monitoring alarm that follows the start of the COM layer, and create time limit parameters and timing parameters when each communication entity is initialized;

[0038] 2) The monitoring alarm regularly traverses all communication entities, and updates the timing parameters of each communication entity each time it traverses;

[0039] 3) Judging the state of the communication entity according to the time limit parameter and the timing parameter, if the sending time of the communication entity is overtime, then notify the upper layer that the communication entity has failed to send; if the communication entity receiving time is overtime, then notify the lower layer that the communication entity has failed to receive; When the time point of the mode comes, the commun...

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Abstract

The invention discloses a COM layer communication time limit monitoring method based on AUTOSAR, comprising the following steps of: 1) establishing a monitoring alarm which is started along a COM layer and establishing a time limit parameter and a timing parameter when each communication entity is initialized; 2) traversing all communication entities and updating the timing parameter of each communication entity at each time of traversing by the monitoring alarm; and 3) judging the state of each communication entity according to the time limit parameter and the timing parameter, informing an upper layer of failed sending of the communication entity if the sending time of the communication entity is over, informing a lower layer of failed receiving of the communication entity if the receiving time of the communication entity is over, and transmitting the communication entity to the lower layer and resetting the time limit parameter of the communication entity if the time point of the sending mode of the communication entity arrives. The invention has the advantages of a few occupied resources, simple maintenance, convenience for debugging, high treatment speed and high receiving and transmitting efficiency.

Description

technical field [0001] The invention relates to the field of smart cars, in particular to an implementation method of a communication entity unit time limit mechanism based on AUTOSAR. Background technique [0002] AUTOSAR (Automotive Open System Architecture) is an open and standardized automotive electronics software architecture, which is jointly established by global automakers, component suppliers and other electronics, semiconductor and software system companies. The AUTOSAR protocol stack is used for network communication between ECUs of automotive electronics and between ECUs. It is a protocol stack similar to the OSI seven-layer model. Information is transmitted to the protocol stack from the RTE (Run Time Environment) layer above. are packed into frames and passed to the underlying hardware. like figure 1 As shown, the Com layer communication entity units mainly include the following types: [0003] (1) Signal (atomic message), used for interaction between the C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/26H04L29/08
Inventor 李红顾宗华王旭阳张成硕陈浩杰
Owner ZHEJIANG UNIV
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