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Communication method between assemblies on basis of resource sharing

A communication method and resource sharing technology, applied in the field of digital information transmission, can solve the problems of limited alarm and OS event resources, affecting system performance, etc., and achieve the effect of reducing the number and optimizing resources

Inactive Publication Date: 2011-05-25
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the Alarm and OS event resources allowed by the usual embedded operating system are limited, and too many such resources will seriously affect the performance of the system.

Method used

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  • Communication method between assemblies on basis of resource sharing
  • Communication method between assemblies on basis of resource sharing
  • Communication method between assemblies on basis of resource sharing

Examples

Experimental program
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Embodiment Construction

[0019] refer to figure 1 , figure 2 , after the initial configuration of the OS and RTE is completed, the communication events between the components are carried out according to the following steps.

[0020] 1. Configure the Alarm according to the configuration description, and map the communication events in the same OS task to a communication OS event.

[0021] 2. Initialize the Alarm resource stack, use an array to represent the Alarm resource stack, use the global stack top pointer and initialize it to point to the 0th element, and initialize the index of the next item in each array element to be the next adjacent node in the array The subscript.

[0022] 3. The communication event requests to allocate an Alarm, and assigns the top node from the resource stack to the activity according to the stack top pointer, and then the stack top pointer points to the next node indicated by the next node index item in the node. Set the value of each field in the node to communicat...

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PUM

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Abstract

The invention relates to a communication method between assemblies on the basis of resource sharing, comprising the following steps: realizing an overtime monitoring function for communication between AUTOSAR assemblies by maintaining a global Alarm and a shared resources stack of an OS (operating system) task and a communication OS event corresponding to the global Alarm; sharing the Alarm in different communication events; and meanwhile, mapping all communication completion events and overtime events trigged by communication activity in the same OS task to the same communication OS event tooptimize resource utilization.

Description

technical field [0001] The invention relates to the field of digital information transmission, in particular to a resource sharing-based inter-component communication method in the Automobile Open System Architecture (AUTOSAR). Background technique [0002] In order to cope with the increasingly complex electronic software systems in contemporary cars and the increasing complexity of control electronic control software, major European and Japanese car manufacturers and some chip manufacturers have launched an industry standard called Open Automotive System Architecture (AUTOSAR). At the same time, with the increase of complex vehicle functions, the number of electronic control chips (ECUs) used in automobiles is also increasing. Great test. Therefore, how to use limited resources to deploy more software functions to achieve energy saving and emission reduction is a very important and meaningful issue. [0003] AUTOSAR divides the electronic software architecture into four ...

Claims

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Application Information

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IPC IPC(8): G06F9/54
Inventor 杨国青胡博彭威刘敏赵民德田帅刘财志
Owner ZHEJIANG UNIV
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