Communication method among multiple tasks under real-time system

A communication method and real-time system technology, applied in the field of data communication systems, can solve problems such as not being able to interfere with the operation status of communication task groups, and achieve the effects of facilitating later maintenance, stable and controllable system performance, and high consistency

Active Publication Date: 2020-08-04
上海智殷自动化科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In terms of processing mechanism, the information monitoring interface can be opened to external systems, but it must not interfere with the normal establishment of the operation status of the communication task group

Method used

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  • Communication method among multiple tasks under real-time system

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The present invention is a communication method between multiple tasks under a real-time system, which is characterized in that it includes a control terminal, a task, and data, and the control terminal is respectively connected to the task and data; the control terminal communicates with the server terminal and the main controller through data communication Composed of data space and task communication space allocator, the data communication control server is respectively connected to the main controller communication data space and task communication space allocator, the main controller communication data space is connected to the task, and the task communication space allocator is connected to the data.

Embodiment 2

[0032]When the present invention is in use, at first, when starting, the control terminal is used as a separate program, creating a task communication control terminal, allocating the data communication space of the main control terminal, registering the ID number of the communication task, and establishing a rule base to wait for the request of the communication task;

[0033] Then, when the task, that is, task A needs to establish a connection with other task B, the task publishes the information requested by the task in the communication data space of the main controller. The communication control server obtains the task information request in the communication data space of the main controller, and needs to send a task connection establishment request to the established connection task, task B; after the established connection task, task B responds to the request, the communication control server executes the task according to Task communication rules, use the task communic...

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Abstract

The invention provides a communication method among multiple tasks under a real-time system, which is characterized in that a control end, tasks and data are included, and the control end is connectedwith the tasks and the data respectively; the control end is composed of a data communication control service end, a main controller communication data space and a task communication space distributor. The data communication control server is respectively connected with the main controller communication data space and the task communication space distributor, the main controller communication data space is connected with the task, and the task communication space distributor is connected with the data; according to the invention, a controlled task, process data and a control server are separated into three sections; the data communication control server is used to carry out communication control management on the multiple tasks. According to the method, a control end, task and data decentralized control method is used, and the task communication process can be effectively monitored on the basis that multi-task real-time performance normal communication is not affected.

Description

technical field [0001] The invention relates to a data communication system, in particular to a communication method between multiple tasks under a real-time system. Background technique [0002] Real-time operating system (RTOS) means that when external events or data are generated, they can accept and process them at a fast enough speed, and the processing results can control the production process or respond quickly to the processing system within the specified time. , and controls the operating system where all real-time tasks run in unison. Therefore, providing timely response and high reliability are its main characteristics. A real-time system is characterized by a system in which deviations in logic and timing can cause serious consequences. [0003] A task, also called a thread, is a simple program that can think of the CPU as entirely its own. The realization of multitasking operation actually depends on the CPU (Central Processing Unit) to switch and schedule b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/48G06F9/50G06F9/54
CPCG06F9/4881G06F9/5016G06F9/54Y02P90/02
Inventor 刘鑫
Owner 上海智殷自动化科技有限公司
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