Calculation And Application Of Nuclear Power Plant DCS Human-Computer Interaction Complexity

Digital control system is now widely used in aviation, railway transportation, chemical, nuclear power and other industrial enterprises, including the nuclear power industry is particularly evident. Using digital control system to the development of nuclear power industry brings opportunities, but also challenges. For example, this new type of human-computer interaction give the operator brings new complexity, it not only reduces the operator's situational awareness, while also increasing the cognitive load operator, which can cause human errors. The nuclear power industry, security is extremely demanding, even if some obscure errors are likely to affect the efficiency of the production of nuclear power, there may be a serious danger to public safety. Therefore, the complexity of Nuclear power plant digital control system human-computer interaction have a great significance. So the complexity of the nuclear power plant DCS Where HCI in? There are more complex? You can be quantified? This article is a certain amount of research.First, the article analyzes the characteristics of a nuclear power plant digital control system, and then introduces the characteristics of digital human-computer interaction as well as the complexity of the scientific method is proposed to calculate the entropy of a nuclear power plant DCS human-computer interaction complexity on these foundations. Secondly, with this method for a digital nuclear power plant steam generator tube rupture accident emergency procedures interactive complexity quantified, the results obtained by analyzing the video data to prove the rationality and feasibility of the method of measurement. Finally, the research findings, and made a number of human-computer interaction to reduce the complexity of the proposal. Through research, the following conclusions:(1) The paper compares several methods of computational complexity, that the information entropy theory can be used to describe the complexity of the information that can quantify the complexity of the nuclear power plant digital control system human-computer interaction.(2) This paper presents the influence of the complexity of the mechanism model of human-computer interaction, through research observation, we found that five key influencing factors, which quantify the five key factors to quantify the complexity of the nuclear power plant digital control system human-computer interaction. Article by expert investigation to five indicators assigned weights, and use graphic entropy calculated entropy of each index, and the total entropy of human-computer interaction.(3) in the steam generator tube rupture accident, concluded complexity Step 18 Step 19 be larger than, and its complex value of each index larger than Step 19. In practice, you can use this method to choose the best program procedures, but also to take targeted measures against some high complexity solutions to reduce its complexity. This study of the training of operators, the dispensing operation time, as well as selection and optimization procedures HMI programs have some guidance.