The invention discloses a road traffic danger early warning method and system based on an entropy weight method, and relates to the technical field of intelligent traffic management. The method comprises the following steps: establishing an index set; performing data standardization processing on the index set, and calculating the proportion of the time period value of each index in the index set in the corresponding index; calculating an information entropy of each index in the index set, and constructing an index weight of each index according to an information entropy calculation result; index weight updating is carried out through the variable coefficient, comprehensive evaluation is carried out based on an updating result, and a road danger coefficient weight threshold value is extracted through a comprehensive evaluation result; early warning grade setting is carried out according to the road danger coefficient weight threshold value, early warning grade trigger analysis is carried out through the real-time road omnibearing index data, and index early warning is generated according to a trigger result. The technical problem that in the prior art, traffic danger early warning evaluation is not objective and accurate enough is solved, and the technical effect of reducing road safety accidents is achieved.
本发明公开了一种基于熵权法道路交通危险预警方法及系统,涉及智慧交管技术领域。所述方法包括:建立指标集合;对指标集合进行数据标准化处理,并计算指标集合中各个指标的时段数值在对应指标的比重;计算指标集合中各个指标的信息熵,根据信息熵计算结果构建各个指标的指标权重;通过变异系数进行指标权重更新,基于更新结果进行综合评价,并通过综合评价结果提取道路危险系数权重阈值;以道路危险系数权重阈值进行预警等级设置,通过实时道路全方位指标数据进行预警等级触发分析,根据触发结果生成指标预警。解决了现有技术中交通危险预警评估不够客观准确的技术问题,达到了降低道路安全事故发生的技术效果。
Road traffic danger early warning method and system based on entropy weight method
一种基于熵权法道路交通危险预警方法及系统
2024-06-04
Patent
Electronic Resource
Chinese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / G06Q Datenverarbeitungssysteme oder -verfahren, besonders angepasst an verwaltungstechnische, geschäftliche, finanzielle oder betriebswirtschaftliche Zwecke, sowie an geschäftsbezogene Überwachungs- oder Voraussagezwecke , DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES / G08B SIGNALLING OR CALLING SYSTEMS , Signalisier- oder Rufsysteme |
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