Method and device for man-machine system task reliability analysis

Abstract

The invention discloses a method and device for task reliability analysis of a man-machine system. The steps of the method include: S1. establishing a task reliability model of the man-machine system to be analyzed; S2. equating each task flow of the man-machine system to be analyzed is the IDA model, and set the performance influencing factors in the IDA model; respectively obtain the initial human error probability of each task process in each stage of the IDA model, and use the influence coefficient of the corresponding performance influencing factor to correct the initial human error probability, and obtain Corrected human error probability; S3. Calculate the reliability of each task process according to the corrected human error probability at each stage, and use the reliability of each task process to calculate the final reliability of the system according to the task reliability model; the device includes Reliability model building module, task analysis module and reliability calculation model. The invention has the advantages of simple realization method, high reliability analysis efficiency and precision, and the like.

Description

technical field [0001] The invention relates to the technical field of man-machine systems, in particular to a method and device for analyzing task reliability of a man-machine system. Background technique [0002] The man-machine system is a system composed of man and machine and relies on the interaction between man and machine to complete specified functions, such as the driver-carrier aircraft system, driver-locomotive system, and driver-motor train system. In order to ensure that the man-machine system can function reliably and efficiently, it is necessary to conduct reliability analysis on the man-machine system to evaluate the reliability of the man-machine system. [0003] The tasks of man-machine systems are usually composed of multiple task processes, and each task process involves multiple devices. At present, the reliability analysis and evaluation methods of man-machine systems usually treat people as machines, that is, they do not consider the influence of peop...

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Problems solved by technology

[0003] The tasks of man-machine systems are usually composed of multiple task processes, and each task process involves multiple devices. At present, the reliability analysis and evaluation methods of man-machine systems usually treat people as machines, that is, they do not consider the influence of people With the continuous improvement of system and equipment safety and reliability, the reliability of man-machine system depends more and more on the reliability of people, so it is impossible to realize accurate system reliability analysis without considering the influence factors of people

[0004] Human reliability analysis (Human Reliability Analysis, HRA) is to consider the consequences of human errors on risks, and realize reliability analysis to reveal the weak links of the system. At present, human reliability analysis is usually based solely on the analysis of human error probability methods or based on reliability analysis models, such as Cognitive Reliability and Error Analysis Method (CREAM) to construct a method for quantifying human error probability; IDA (Information, Decision, Action Model) model as a This kind of human reliability analysis model is to build a model for the operator's problem solving and decision-making phase under the given constraints and restrictions. The model consists of three parts: information module (information preprocessing stage), problem solving And decision-making module (decision-making stage) and action module (action execution stage), the IDA model can solve problems and make decisions, so as to get more reasonable decisions, but the model does not consider the influence of human cognitive ability and human-computer interaction, Applicability to human performance is uncertain, and the accuracy of model analysis is still not high

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