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康炤旭     ★北京廣利核系統(tǒng)工程有限公司

摘要：DCS系統(tǒng)是核電站的神經(jīng)中樞，DCS系統(tǒng)的安全穩(wěn)定運(yùn)行對核電 站的安全具有重要意義。DCS系統(tǒng)本身具有豐富的自診斷功能，當(dāng)系統(tǒng) 出現(xiàn)異常也會記錄大量的在線和離線日志。對于離線日志目前的分析 手段比較單一，只能通過人工方式進(jìn)行日志的提取與分析。本文描述 了一種提高離線日志的提取與分析效率的方法，利用Windows自帶的 API函數(shù)，文件傳輸命令等自動獲取DCS系統(tǒng)離線日志并統(tǒng)一收集到指 定節(jié)點(diǎn)。利用Python語言對收集到的離線日志進(jìn)行分析，結(jié)合DCS系 統(tǒng)特點(diǎn)，從離線日志中提取出影響DCS系統(tǒng)穩(wěn)定運(yùn)行的信息。這些信息 采用JSON異步讀取的方式，通過ECharts圖表工具將分析結(jié)果以html 格式進(jìn)行在線展示，輔助操作員對DCS系統(tǒng)的健康狀態(tài)進(jìn)行輔助分析及 判斷，為DCS的智能化運(yùn)維提供了理論與技術(shù)參考。

關(guān)鍵詞：Python；ECharts；DCS日志；IIS；JSON

Abstract: DCS system is the nerve center of normal operation of  nuclear power plant. The safe and stable operation of DCS system is  of great significance to the safety of nuclear power plants. The DCS  system itself has rich self-diagnosis functions, and a large number of  online and offline logs will be recorded when the system is abnormal.  At present, the analysis method of offline log is relatively simple,  and the log can only be extracted and analyzed manually. This paper  describes a method to improve the efficiency of offline log extraction  and analysis of offline logs, using the API function and file transfer  command of windows to automatically obtain the offline log of DCS  system and collect it to the designated nodes. Python language is used  to analyze the collected offline logs. According to the characteristics  of the DCS system, the information that affects the stable operation of  the DCS system is extracted from the offline logs. The information is  read asynchronously by JSON, and the analysis results are displayed  online in HTML format through Ecarts chart tool, which helps operators  to analyze and judge the health status of DCS system, and provides  theoretical and technical reference for intelligent operation and  maintenance of DCS.

Key words: Python; ECharts; Log of DCS; IIS; JSON

點(diǎn)擊預(yù)覽：基于數(shù)據(jù)可視化的DCS系統(tǒng)日志分析方法研究及應(yīng)用.pdf

摘自《自動化博覽》2021年5月刊