A protection method for embedded microcomputer based on rtems operating system

Abstract

The invention relates to an embedded type microcomputer protection method based on an RTEMS operation system. The method comprises the steps that firstly, a system structure comprising an application layer, a middle layer, an RTEMS multi-task scheduling kernel and a hardware drive program is established, wherein the application layer, the middle layer, the RTEMS multi-task scheduling kernel and the hardware drive program are connected from top to bottom and are in communication with one another; secondly, various initialization tasks required by the system are accomplished by an initialization function, a global data exchange area is prepared, a plurality of tasks running concurrently are created, a corresponding task number is written to each task, and each task number shows the priority level of execution; finally, the tasks are executed in order through the RTEMS multi-task scheduling kernel according to the task numbers, data are exchanged through the global data exchange area controlled by mutual exclusion, and therefore microcomputer protection is achieved. Thus, the excellent intelligent electric microcomputer protection performance of the system is achieved, the system which has the high cost performance and accords with the characteristics of an electric power and industrial control industry is obtained through RTEMS optimization and extension, the manufacturing cost is low, the market competitiveness is high, and the economic benefits are good.

Description

technical field [0001] The invention belongs to the technical field of microcomputer protection of power equipment, in particular to an embedded microcomputer protection method based on an RTEMS operating system. Background technique [0002] At present, power measurement, control and protection devices are developing rapidly towards intelligent applications, which require power measurement and control protection devices to have the ability to complete power parameter calculations, fast logic judgments, high-speed industrial network communications, file storage of fault data, and complex man-machine interface display. Complex functions; however, the traditional power measurement, control and protection devices without an operating system that operate in the front and back mode can no longer adapt to the current technological development, and must use an embedded real-time operating system to realize the aforementioned functions. Therefore, many commercial embedded real-time ...

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Problems solved by technology

[0003] 1. The core code is not disclosed—the commercial embedded real-time operating system is a general solution, but for each embedded device, various external devices are very different, and the performance indicators and application functions that need to be highlighted are also very different. Since the core of the operating system is not mastered, it is difficult to optimize the system, and it is impossible to customize and develop an embedded protection system with outstanding performance and complete functions

[0004] 2. Expensive charges - thus increasing the cost of terminal products using the commercial embedded real-time operating system, making the product lose its cost advantage in the highly competitive market

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