A man-machine system task reliability analysis method and device

A human-machine system and analysis method technology, applied in the field of human-machine systems, can solve the problems of inability to achieve accurate system reliability analysis, uncertainty of human performance applicability, and low model analysis accuracy, achieving high accuracy and improving accuracy. , Analysis to achieve reasonable results

Active Publication Date: 2019-02-26
CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST
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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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  • A man-machine system task reliability analysis method and device
  • A man-machine system task reliability analysis method and device
  • A man-machine system task reliability analysis method and device

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Embodiment 1

[0044] Such as figure 1 As shown, the steps of the man-machine system task reliability analysis method of this embodiment include:

[0045] S1. Model establishment: establish the task reliability model of the man-machine system to be analyzed.

[0046] The task reliability model is used to estimate the degree to which the product completes the specified functions during the execution of the task. The basic reliability model is a full series model, that is, the reliability model is a series system, such as figure 2 As shown, the series system is composed of each task process and each device in series, and the parallel model, series-parallel model, series-parallel-parallel model, etc. can also be adopted according to the task situation, that is, each task operation process in the man-machine system is regarded as A unit, and the involved equipment as a hardware unit, consists of each task flow unit and each equipment unit in the man-machine system according to one of the conne...

Embodiment 2

[0084] This embodiment is to specifically analyze the reliability of the locomotive inspection and maintenance task, and the detailed steps are as follows:

[0085] Step 1: Analyze the composition of the man-machine system.

[0086] In the analysis of locomotive inspection and maintenance tasks, it is determined that the man-machine system is composed of the overhauler and the overhauled equipment. To simplify the analysis, the overhaul equipment specifically includes the man-machine interface involved in maintenance, such as the instrument panel and display screen.

[0087] Step 2: Task analysis.

[0088] In this embodiment, the analysis of the locomotive inspection and maintenance operation obtains the following 8 task processes:

[0089] ① Release the energy storage brake manually, and confirm that the energy storage brake is in the braking state;

[0090] ②Close the battery trip 61QA, and confirm that the battery voltage is not lower than 96V;

[0091] ③Confirm that the...

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Abstract

The invention discloses a man-machine system task reliability analysis method and device. The method comprises the following steps: S1, establishing a task reliability model of the man-machine systemto be analyzed; 2, equivalently taking each task flow of that man-machine system to be analyzed as an IDA model, and set performance influence factors in the IDA model; The initial human error probability of each task flow in each stage of the IDA model is obtained respectively, and the initial human error probability is corrected by using the influence coefficient corresponding to the performanceinfluence factor, and the corrected human error probability is obtained. 3, calculating that reliability of each task process accord to the human error probability corrected in each stage, and calculating the reliability of each task process accord to the task reliability model to obtain the final reliability of the system; The device includes a reliability model building module, a task analysismodule and a reliability calculation model. The invention has the advantages of simple realization method, high reliability analysis efficiency and precision.

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...

Claims

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Application Information

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IPC IPC(8): G06F11/00
CPCG06F11/008
Inventor 陈旭鸿唐欢潘宇雄汪旭杜绍华尹超匡芬
Owner CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST
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