COM layer communication time limit monitoring method based on AUTOSAR

A technology of time limit and communication entity, which is applied in the direction of digital transmission system, electrical components, transmission system, etc. It can solve the problems of occupying alarm resources, long interruption time of clock off, affecting time accuracy, etc., and achieves high transmission and reception efficiency and low transmission and reception overhead , the effect of convenient debugging

Active Publication Date: 2013-10-30
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

Examples

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Embodiment Construction

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

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

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

[0039] 3) Judge the status of the communication entity according to the time limit parameters and timing parameters. If the communication entity's sending time expires, the upper layer will be notified that the communication entity has failed to send; if the communication entity's receiving time has expired, the lower layer will be notified that the communication entity has failed to receive; if the communication entity sends When the time point of t...

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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 an AUTOSAR-based communication entity unit time limit mechanism. Background technique [0002] AUTOSAR (Automotive Open System Architecture) is an open and standardized automotive electronic software architecture, which is jointly established by global automotive manufacturers, component suppliers and other electronics, semiconductor and software system companies. The AUTOSAR protocol stack is used for network communication between the ECU of automotive electronics and the ECU. It is a protocol stack similar to the OSI seven-layer model. Information is transferred to the protocol stack from the RTE (Run Time Environment) layer above. It is packed into frames, and then passed to the underlying hardware. Such as figure 1 As shown, Com layer communication entity units are mainly as follows: [0003] (1) Signal (atomic message), used for interaction between the Com la...

Claims

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Application Information

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