Reusable timing method for parallel time limit reasoning of real-time expert system

Abstract

The invention discloses a reusable timing method for parallel time limit reasoning of a real-time expert system. The method comprises the following steps that when a real-time expert system is started, a basic timer gTimer, a timing event queue Q, a timing event management thread tEventManager and a message queue msgQEvent for transmitting messages to the timing event management thread tEventManager are created; a timing event, a timing event queue Q and data items of nodes of the timing event queue Q are defined; whenever the time limit reasoning in any rule in the real-time expert system isstarted, the real-time expert system starts a timing event Ei, and sends the timing event Ei to the timing event management thread tEventManager through the message queue msgQEvent, and inserts the timing event Ei into the timing event queue Q after the timing event management thread tEventManager receives the processing request. The method provided by the invention effectively manages and allocates timer resources for a real-time expert system.

Description

technical field [0001] The invention relates to a reusable timing method for real-time expert system parallel time-limit reasoning, and the real-time expert system field of data support time-limit reasoning. Background technique [0002] When a rule-based real-time expert system deals with rules with time-limited features (time-related features), it needs to convert time-limited features into timed events, and the realization of a timed event depends on software timers. Software timers can be provided by the operating system or written by software developers themselves. When in the rule set loaded by the real-time expert system, rules with multiple time-limit features enter the timing state at the same time, the expert system will face the problem of processing multiple timing events at the same time, and the design lacks support for parallel processing of multiple time-limit reasoning, although On some platforms, you can rely on the timing mechanism provided by the operati...

AI Technical Summary

Problems solved by technology

When in the rule set loaded by the real-time expert system, rules with multiple time-limit features enter the timing state at the same time, the expert system will face the problem of processing multiple timing events at the same time, and the design lacks support for parallel processing of multiple time-limit reasoning, although On some platforms, you can rely on the timing mechanism provided by the operating system to repeatedly apply for and start the timer, but such a processing mechanism has certain shortcomings in the allocation and use of timer resources, and the expert system software cannot adapt to the rules in its rule base. Elastic demand for timer resources

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