Fuzzy Synthetic Evaluation Model for Smart Washing Machine

Generally fuzzy control system (FCS) is worked in washing machine. For the fuzzy set theory, membership functions are the building blocks. In a fuzzy set, fuzziness is determined by its membership functions. The shapes of membership functions are important, because it has an effect on fuzzy inference system. The shapes of membership functions can be triangular, trapezoidal and gaussian. The most widely used triangular membership function is used in this paper, because it can capture the short time period. In washing machine, open loop control system is found. This paper applies a fuzzy synthetic evaluation method (FSEM) for washing cloth in washing machine as FSEM can handle the multiple criteria with the help of evaluation matrix generated from membership function and weight matrix generated by Analytical Hierarchy Process (AHP). The purpose of this research is to minimize the wash time. By applying FSEM, we get a wash time which is less than that wash time got from applying the Mamdani approach in FCS. An example is given for illustration. For more reduction of wash time, statistical averaging method is also used. To reduce the wash time, statistical averaging method can be used in Mamdani approach also.

Applying Analytical Hierarchy Process to a WiMAX Performance Evaluation Model

Evaluating performance of individual features of WiMAX technology is a topic of widespread discussion. Currently, there is no quantitative way of measuring WiMAX technology so that wireless operators can meet their design objectives. This paper outlines a set of design criteria for WiMAX and provides a decision-making aid that ranks the importance of criteria using Analytic Hierarchy Process （AHP）. This ranking should sufficiently reflect market expectations of the relative importance of various design criteria. A model integrating AHP priorities with enhanced Data Envelopment Analysis （DEA） is the basis for formulating a technological value in simple, comparable format. A case study is provided to show how this technological value is used to evaluate a three year network deployment plan. In the future, this model could be extended to WiMAX equipment suppliers for the purpose of validating performance targets of individual criteria, and enhancing supplier roadmaps for future network development.

Evaluation of the Safety of Mine Road Based on Fuzzy Analytic Hierarchy Process

Generally, mine roads are located in the mountain areas, as its complex topography, mostly along the river near the cliffs, steep bend anxious, the mine road design has to adopt lower technical standards relatively and usually is lack of traffic safety facilities. Especially, there are mainly medium-sized vehicles on mine road, under the heavy traffic vehicles affect repeatedly, high frequency of traffic accidents more easily happen in mine road area and cause serious effects on life or property. Combining with the particularity of mine road safety environment, this paper studies the basic theory of safety evaluation, analyses the factors of traffic safety design and special mine terrain conditions, and then establishes mine road safety index system and evaluation model based on the principles such as systematicness, independent indexes, qualitative and quantitative analysis, feasibility, scientificity and reliability. At last, the paper successfully evaluates the safety of road in Huang Mailing phosphate rock area with fuzzy AHP method based on engineering project.

An effective method for performance evaluation of ACLS based on improved grey analytic hierarchy

The performance evaluation of automatic carrier landing system(ACLS)is an important part in the field of carrier aircraft landing control.Combining grey analytic hierarchy theory and data normalization theory,an improved grey analytic hierarchy method is introduced to evaluate the performance of ACLS.A complete performance evaluation indicators system of ACLS is established,and the definition and calculation formula of each indicator are provided.The grey analytic hierarchy model is modified to improve the real-time performance of the algorithm,where traditional expert scoring sampling matrix is substituted by an indicator normalized sample matrix.Taking a certain ACLS as an example,the experimental simulation is carried out,and the simulation results verify the reliability and the accuracy of the improved grey analytic hierarchy method.

Evaluation of Productive Plant Landscapes in Cold Regions Based on a Multiple Cropping Model

Four varieties of each rapeseed and buckwheat were planted in different sowing periods to explore a variety of planting patterns.A theoretical foundation was provided for the innovative application of cold region productive plant landscapes.The analytic hierarchy process was employed to develop a model for the evaluation of multiple cropping systems.A comprehensive evaluation was conducted to study 10 indicators in plant type,flower color,flowering period,flower volume,branch coverage,plot average yield,number of grains per plant,yield per plant,thousand-grain quality and ecological adaptability in four different varieties of each rapeseed and buckwheat.The results indicated that flower color,ecological adaptability,plot average yield and flower volume were the most important indicators for the value of productive plant landscapes in cold regions.Concerning the sowing period,the optimal combination of varieties and planting times were March 31 for Qingza No.5(rapeseed)and July 18 for Xinong T1211(buckwheat).

Evaluation of urban river landscape design rationality based on AHP

An evaluation model for the rationality of the landscape design of urban rivers was established with the analytic hierarchy process （AHP） method so as to provide a foundation for updating the landscape design of urban rivers. The evaluation system was divided into four layers, including the target layer, the comprehensive layer, the element layer, and the index layer. Each layer was made of different indices. The evaluation standards for each index were also given in this paper. This evaluation model was proved tenable through its application to the landscape design rationality evaluation of the Weihe River in Xinxiang City of Henan Province. The results show that the water quality, space, activity, facility, community, width of vegetation, sense of beauty and water content are among the most influential factors and should be considered the main basis for evaluating the rationality of the landscape design of urban rivers.

组合赋权法在卷烟机综合性能评价中应用

【目的】客观准确地评价卷烟机设备性能,从质量水平、消耗水平和效能水平3个维度出发,构建设备综合性能评价指标体系和组合赋权评价模型。【方法】利用最大熵原理给出最优组合系数和方案评价计算步骤。开展Topsis方法、层次分析法、熵值法和组合赋权法在卷烟机设备综合性能评价的实例分析和比较工作。【结果】4种方法具有显著正相关关系,评价结果满足一致性。组合赋权法与其他评价方法相比具有最优组合系数和误差平方和小优势。

基于TFN-AHP和云模型的母舰对气垫船保障能力评价

母舰对气垫船的保障能力是气垫船任务执行能力的重要组成部分,对母舰的保障能力进行综合评价是提升气垫船与母舰保障适配能力的重要环节。母舰对气垫船的保障活动具有高度的随机性、复杂性和动态性,导致其保障能力的评价也存在不确定性和模糊性。为此,基于三角模糊数(triangular fuzzy number,TFN)-层次分析法(analytic hierarchy process,AHP)与云模型提出了一种新的母舰对气垫船保障能力评价方法,并对某型母舰对气垫船的保障能力进行了评价。该方法通过特定的结构算法完成定性概念与定量表示的相互结合,降低了保障能力评价中权重计算的主观性和随机性,为母舰对气垫船保障能力评价提供了借鉴。

煤矿采动稳定区煤层气开发区块经济评价技术

针对我国煤矿采动稳定区煤层气开发区块评价技术缺乏,难以有效指导经济开发应用这一问题,基于煤层气开发效果与综合效益,分析了采动稳定区煤层气开发区块评价关键参数,构建了考虑技术进步等动态影响因素的煤层气开发区块经济评价指标体系,采用层次分析方法获得了各单项指标的相对权重,并提出了开发区块最大隶属原则经济评价方法。应用试验表明,该经济评价方法可为煤矿采动稳定区煤层气开发决策提供可靠指导。

基于集对分析理论和数字化平台的山岭隧道塌方风险评价

为更准确、更科学地完成山岭隧道塌方风险评价,提出一种基于层次分析法(AHP)-熵值法(Entropy)集对分析理论的山岭隧道塌方风险评价方法。首先,选取地质因素、设计因素、施工因素、管理因素4项因素作为塌方风险评价指标体系的准则层,选取12项因素作为指标层,运用层次分析法和熵值法分别计算2级指标权重;然后,引入集对分析理论确定指标联系度,并结合置信度准则对塌方风险的等级进行判定;接着,利用Grasshopper以及Python软件,对集对分析理论进行可视化程序开发,并将其与隧道-地质BIM交互模型进行耦合,建立基于AHP-Entropy集对分析模型的隧道塌方风险数字化分析平台;最后,结合重庆某隧道实际工程,验证隧道塌方风险评价的高效化、可视化效果。研究表明:基于集对分析理论的山岭隧道塌方风险评价数字化分析平台运行时间约为2 s,与传统的隧道塌方风险评价方法相比可以大大提高风险评价效率,同时利用AHP-Entropy法确定评价指标权重,提高了评价结果的可靠性。

基于层次分析法和熵权法的高校校园安全灰色评价模型及应用

随着我国高等教育的快速发展,高校校园安全问题日益凸显。为了正确评价高校校园的安全状况,通过对高校校园安全问题的实地调查,分析了影响校园安全管理的相关因素,构建了由5个一级指标和19个二级指标组成的高校校园安全评价指标体系,基于层次分析法和熵权法建立高校校园安全灰色评价模型,并结合某高校的实际情况进行校园安全评价,为提升高校校园的安全性提供对策和建议。

高校大学生实验室安全意识评价模型的构建

为减少实验室安全事故的发生和提高大学生的实验室安全意识,设计了实验室安全意识影响因素调查问卷和大学生实验室安全意识评价调查问卷,利用层次分析法—熵权法(AHP-EWM)主客观相结合的方法建立高校大学生实验室安全意识评价体系。通过主成分分析法(PCA)处理,再选取累计贡献率超过95%的评价指标进行布谷鸟搜索(Cuckoo Search, CS),最后结合混合优化支持向量机(SVM)建立PCA-CS-SVM大学生实验室安全意识评价模型。验证结果表明,与PCA-LS-SVM和PCA-GA-SVM模型相比,PCA-CS-SVM模型的预测值与实际值的误差较小且评价等级与实际值保持一致,具有较高的准确性和可靠性,可用于高校大学生实验室安全意识评价。

基于QAR飞参数据飞行员风切变处置能力评价模型

为提高飞行员处置风切变的能力,本文基于快速存取记录器(QAR,quick access recorder)飞参数据建立了飞行员风切变处置能力评价模型。首先,将飞行员风切变处置能力分为处置决策及时性、程序合规性以及航迹管理能力3个维度;其次,基于层次分析法(AHP,analytic hierarchy process)建立飞行员风切变处置能力评价体系,并融合专家经验构建风切变处置能力定量评价模型;最后,基于QAR采集的飞参数据验证该模型的实用性和可行性。实验结果表明,本文所构建的定量评价模型可以较好地判别飞行员风切变处置能力的优劣,定位出其处置不当的指标,并给出操纵建议。该评价模型可为改进飞行训练提供参考,具有一定的实用价值。

基于组合赋权-云模型的抽蓄电站高质量发展评价体系

为科学评价生产期抽蓄电站高质量发展现状、把握电站发展的薄弱环节、明确建设期及新投运电站发展方向,根据抽蓄电站定位及高质量发展内涵,经过2轮筛选,构建了包含服务电力系统稳定运行、经济、绿色、创新、共享5个一级指标以及18个二级指标的评价指标体系;选用层次分析法–决策实验分析方法确定指标权重,运用云模型评价各电站高质量发展等级。最后,选取A抽蓄电站为算例验证评价体系适用性。评价结果显示,该电站服务电力系统稳定运行、绿色和共享3个指标表现均为良好,经济和创新指标表现为中等,与电站实际运行情况相符合。该验证结果表明,采用上述方法构建的评价指标体系有很好的适用性。

生态环境治理项目安全生产标准化评价模型及其应用

为提高生态环境治理项目安全生产标准化评价的准确性和客观性,针对安全生产标准化存在的管理缺陷及主要问题,首先结合相关文献和项目实际确定安全生产标准化评价指标体系,然后采用层次分析法计算各评价指标的权重,构建了安全生产标准化评价模型,最后应用安全生产标准化评价模型对某土地开发整理项目进行了实例应用与分析。结果表明,该评价模型适用于生态环境治理项目安全生产标准化量化评分,对今后生态环境治理项目安全生产标准化评价具有指导意义。

基于AHP-TOPSIS的土壤重金属污染修复植物适宜性评价

目的筛选出适应性强、处理效果好的植物,用于解决困扰重金属污染土壤植物修复的选种难题。方法应用层次分析法构建以生态适应性、技术可行性、经济可行性为准则、下含8个影响因素的指标体系,建立判断矩阵,并对其构造进行改进,通过逼近理想解的排序法筛选出最适合的修复植物;把该模型用于沈阳市某化工厂被重金属严重污染的土壤修复,对15种植物进行评价、筛选。结果构造的改进判断矩阵评价误差更小;通过计算发现,在污染土壤植物修复工程中,耐旱性是影响修复效果的主要因素;筛选结果表明,狼尾草等适合用于该场地的植物修复,接近度为0.838,去除率可达82%。结论该植物筛选模型能综合考虑各评价指标的影响,可以客观、准确地筛选出修复植物。

基于AHP-灰色聚类模型的舰艇自身抗损能力评估方法

针对当前舰艇平台性能评价标准不一的问题,尤其是如何更好评价定性指标的问题,探究一种客观公正的评价方法。以舰艇自身抗损能力为研究对象,提出层次分析(AHP)-灰色聚类模型在自身抗损能力综合评估的应用,并在分析研究舰艇自身抗损能力影响因素的基础上建立评估指标体系。运用AHP确定各指标权重,针对舰艇自身抗损能力的各项评价指标,基于专家打分法的打分结果,应用灰类的白化权函数进行数据归一化处理,得到各项评价指标的分数值。根据指标评价体系以及各项指标的权重和分数值,对舰艇自身抗损能力进行综合评价。实例分析结果表明,该方法使用便捷,能够对舰艇自身抗损能力进行客观公正的评价,可为舰船自身抗损能力综合评估提供指导。

基于Kano模型和层次分析法的切片刀舒适性优化设计研究

文章基于手持设备评价指标的研究,建立切片刀舒适性指标评价体系。同时,通过文献资料研究分析影响手持设备舒适性的因素,提取舒适性的各项标准确定切片刀的舒适性相关指标,利用Kano模型分析用户满意度情况并运用层次分析法构建刀柄造型和材料的各项指标的舒适性权重,将刀具的相关因素数据进行标准化处理,对设计方案评价进行方案改进。以期对切片刀设计提供一定的借鉴。

基于ADC和AHP的舰载双波段雷达作战效能评估

针对舰载双波段雷达作战效能评估问题,提出一种基于ADC和AHP的作战效能评估方法。首先,建立了适用于舰载双波段雷达特点的ADC模型,给出了各因子的具体评估过程。然后,通过AHP给出了能力因子各指标权重系数的计算方法。最后以某舰载双波段雷达为例,给出了模型的应用实例。该模型可操作性强,能准确评估舰载双波段雷达作战效能。