WO2025232002A1 - 一种基于多传感器阵列的明渠断面输沙量测量方法 - Google Patents

一种基于多传感器阵列的明渠断面输沙量测量方法

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Publication number
WO2025232002A1
WO2025232002A1 PCT/CN2024/108173 CN2024108173W WO2025232002A1 WO 2025232002 A1 WO2025232002 A1 WO 2025232002A1 CN 2024108173 W CN2024108173 W CN 2024108173W WO 2025232002 A1 WO2025232002 A1 WO 2025232002A1
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sub
sediment
sediment transport
measurement parameters
main influencing
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French (fr)
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李先瑞
刘磊磊
许斌
张效栋
赵昊旭
刘现磊
张磊
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Tianjin Research Institute For Water Transport Engineering State Ministry Of Transport
Tianjin University
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Tianjin Research Institute For Water Transport Engineering State Ministry Of Transport
Tianjin University
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Priority to LU603956A priority Critical patent/LU603956B1/en
Publication of WO2025232002A1 publication Critical patent/WO2025232002A1/zh
Priority to ZA2025/10001A priority patent/ZA202510001B/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/002Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow wherein the flow is in an open channel
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00Measuring or testing not otherwise provided for
    • G01D21/02Measuring two or more variables by means not covered by a single other subclass
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/06Indicating or recording devices
    • G01F15/068Indicating or recording devices with electrical means
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/07Integration to give total flow, e.g. using mechanically-operated integrating mechanism
    • G01F15/075Integration to give total flow, e.g. using mechanically-operated integrating mechanism using electrically-operated integrating means
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A90/00Technologies having an indirect contribution to adaptation to climate change
    • Y02A90/30Assessment of water resources

Definitions

  • This invention relates to the field of sediment transport measurement technology, and in particular to a method for measuring sediment transport in open channel cross-sections based on a multi-sensor array.
  • Flow rate can be calculated using methods such as the velocity-area method
  • sediment concentration measurement mainly involves three methods: traditional manual sampling and analysis methods (such as the drying method and the specific gravity method), acoustic measurement methods (such as ADCP), and optical measurement methods (such as optical scattering and optical projection).
  • traditional manual sampling and analysis methods such as the drying method and the specific gravity method
  • acoustic measurement methods such as ADCP
  • optical measurement methods such as optical scattering and optical projection
  • This invention provides a method for measuring sediment transport in an open channel cross-section based on a multi-sensor array, comprising the following steps:
  • the sediment transport measurement parameters with a cumulative contribution rate ⁇ Mj ⁇ 0.85 are the main influencing factors. Then, based on the Mj values from large to small, the first main influencing factor, the second main influencing factor, ..., the zth main influencing factor are determined, where z ⁇ the number of types of sediment transport measurement parameters;
  • R ⁇ sub> d ⁇ /sub> is the preset determination coefficient threshold
  • RMSE ⁇ sub> d ⁇ /sub> is the preset root mean square error threshold
  • MAE ⁇ sub> d ⁇ /sub> is the preset mean absolute error threshold
  • the cumulative contribution rate ⁇ Mj is:
  • calculation model is as follows:
  • a ⁇ sub> i ⁇ /sub> , B ⁇ sub>i ⁇ /sub>, C ⁇ sub>i ⁇ /sub> , D ⁇ sub>i ⁇ /sub> , E ⁇ sub> i ⁇ /sub> , F ⁇ sub> i ⁇ /sub> are the nonlinear parameters corresponding to rule i;
  • the first layer of the computational model fuzzyens the input signal of the main influencing factor, and the membership value of the i-th node is:
  • the second layer of the computational model calculates the trigger strength w ⁇ sub> i ⁇ /sub> of each fuzzy rule
  • Calculation model layer 3 Obtain the normalized trigger strength based on layer 2.
  • Layer 4 of the computational model Calculates the rule output, specifically the contribution of the i-th rule to the model output.
  • the root mean square error (RMSE) is:
  • the mean absolute error (MAE) is:
  • the sediment transport measurement method of this invention uses multiple sensors to sample sediment transport measurement parameters q related to sediment transport calculation.
  • the main influencing factors i.e., the sediment transport measurement parameters that have a significant impact on sediment transport calculation, are then determined.
  • the coefficient of determination R2 root mean square error (RMSE), and mean absolute error (MAE) are then calculated.
  • the validity of the obtained sediment transport measurement parameters q is then determined by comparison. If invalid, the sediment transport measurement parameters q are re-acquired; if valid, the sediment transport volume Cs is calculated based on the valid parameters.
  • This method significantly improves the measurement accuracy of sediment transport in open channels, ensuring effective monitoring of water body sediment conditions. It provides a data foundation for the analysis of hydraulic characteristics, water resource allocation, and river ecosystem balance, and provides technical support for decision-making and measures in water resource management, environmental protection, river engineering planning, and flood control engineering.
  • Figure 1 is a flowchart of the method for measuring the sediment transport volume of an open channel cross section based on a multi-sensor array.
  • An embodiment of the present invention provides a method for measuring sediment transport in an open channel cross-section based on a multi-sensor array, comprising the following steps:
  • the sediment transport measurement parameters are standardized to obtain standardized data Q.
  • the standardized data Q is:
  • the standardized covariance matrix RQ is:
  • the contribution rate Mj of the main influencing factor is:
  • the cumulative contribution rate ⁇ Mj is:
  • the sediment transport measurement parameters with a cumulative contribution rate ⁇ Mj ⁇ 0.85 are the main influencing factors. Then, the first main influencing factor, the second main influencing factor, ..., the zth main influencing factor are determined according to the Mj value from large to small, where z ⁇ the number of types of sediment transport measurement parameters;
  • the calculation model is as follows:
  • the first layer of the computational model fuzzyens the input signal of the main influencing factor, and the membership value of the i-th node is:
  • the second layer of the computational model calculates the trigger strength w ⁇ sub> i ⁇ /sub> of each fuzzy rule
  • Calculation model layer 3 Obtain the normalized trigger strength based on layer 2.
  • Layer 4 of the computational model Calculates the rule output, specifically the contribution of the i-th rule to the model output.
  • the actual sediment content was measured on-site to obtain the true sediment content value; the coefficient of determination R2 , root mean square error RMSE, and mean absolute error MAE were calculated from the calculated sediment content value and the true sediment content value.
  • the coefficient of determination R2 is:
  • the root mean square error (RMSE) is:
  • the mean absolute error (MAE) is:
  • R ⁇ sub> d ⁇ /sub> is the preset determination coefficient threshold
  • RMSE ⁇ sub> d ⁇ /sub> is the preset root mean square error threshold
  • MAE ⁇ sub> d ⁇ /sub> is the preset mean absolute error threshold
  • the sediment transport volume measurement parameters q related to the calculation of sediment transport volume are continuously sampled by multiple sensors, and standardized data Q is obtained after standardization. Then, the covariance matrix RQ , eigenvalue ⁇ , and eigenvector t are calculated. Then, the contribution rate Mj of the main influencing factors and the cumulative contribution rate ⁇ Mj corresponding to each sediment transport volume measurement parameter are calculated, and the main influencing factors, that is, the sediment transport volume measurement parameters that have a significant impact on the calculation of sediment transport volume, are determined.
  • a calculation model is established to calculate the calculated sediment concentration, and the actual sediment concentration is measured on-site to obtain the true sediment concentration value.
  • the coefficient of determination R2 , root mean square error RMSE, and mean absolute error MAE are calculated from the calculated and true sediment concentration values.
  • the validity of the obtained sediment transport measurement parameter q is then determined by comparison. If it is invalid, the sediment transport measurement parameter q is re-obtained. If it is valid, the sediment transport Cs is calculated based on the valid sediment transport measurement parameter.
  • the sediment transport measurement method of this invention greatly improves the measurement accuracy of sediment transport in open channels, ensures effective monitoring of sediment conditions in water bodies, provides a data foundation for the analysis of hydraulic characteristics, water resource allocation, and the balance of river ecosystems, and provides technical support for decision-making and measures in water resource management, environmental protection, river engineering planning, and flood control projects.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

本发明公开了一种基于多传感器阵列的明渠断面输沙量测量方法,包括如下步骤:1)采样输沙量测量参数q;2)进行标准化得到标准化数据Q;3)计算获得Q的标准化协方差矩阵RQ,以及特征值λ和特征向量t;4)选取主影响因素,确定第一主影响因素、第二主影响因素、...、第z主影响因素;5)计算获得决定系数R2、均方根误差RMSE、平均绝对误差MAE;若R2<Rd、RMSE<RMSEd且MAE<MAEd,则该组输沙量测量参数有效,否则返回步骤1)重新采样输沙量测量参数:6)根据有效的输沙量测量参数计算输沙量Cs。本发明的输沙量测量方法极大的提高了明渠输沙量的测量精度,确保了对水体泥沙状况进行有效监测。

Description

一种基于多传感器阵列的明渠断面输沙量测量方法 技术领域
本发明涉及输沙量测量技术领域,尤其涉及一种基于多传感器阵列的明渠断面输沙量测量方法。
背景技术
全球水土流失的现象日趋严重。要想治理好泥沙,首要问题就是能够对水体泥沙状况进行有效监测,获取实时的、精确的悬沙浓度数据,对于研究泥沙的输运过程十分重要。我国对于输沙过程的研究已经具有很长的历史,不过大部分属于理论研究,精确测量结果很多来源于中小尺度测量。对于大河流,港湾的输沙过程的实时监测经验较少,监测技术缺乏深入研究。
目前,常用的输沙量测量是获取流量和含沙量后通过计算求得断面的输沙量。流量测量可通过流速面积法等进行计算获得,而含沙量测量主要有三种,即传统人工采样分析方法(如烘干法、比重法等)、声学测量法(ADCP等)和光学测量法(光学散射、光学投射等)。但是在测量含沙量的过程中并未考虑到水中含沙量的粒径和色度对测量过程中的影响。输沙量测量的准确性有待提高。
发明内容
鉴于现有技术中的上述缺陷或不足,期望提供一种基于多传感器阵列的明渠断面输沙量测量方法,分别测量水深、流速、温度、含沙量、砂粒径、砂粒表面色度因素,通过分析不同因素的影响效果和权重来计算断面输沙量。该方式极大的提高了明渠输沙量的测量精度,确保了对水体泥沙状况进行有效监测。
本发明提供的一种基于多传感器阵列的明渠断面输沙量测量方法,包括如下步骤:
1)按照时间间隔T分别采样输沙量测量参数q,所述输沙量测量参数包 括水深值q1、流速值q2、温度值q3、含沙量值q4、砂粒径值q5、砂粒表面色度值q6
2)对所述输沙量测量参数进行标准化得到标准化数据Q;
3)计算获得Q的标准化协方差矩阵RQ,以及RQ的特征值λ和所述特征值λ对应的特征向量t;
4)选取主影响因素,分别计算各输沙量测量参数对应的主影响因素贡献率Mj以及累计贡献率∑Mj
其中,累计贡献率∑Mj≥0.85的输沙量测量参数为主影响因素,再根据Mj值由大到小确定第一主影响因素、第二主影响因素、...、第z主影响因素,z≤输沙量测量参数的种类数量;
5)建立计算模型,经计算模型计算获得含沙量计算值;现场进行含沙量的实际测量得到含沙量真实值;由含沙量计算值与含沙量真实值计算获得决定系数R2、均方根误差RMSE、平均绝对误差MAE;若R2<Rd、RMSE<RMSEd且MAE<MAEd,则该组输沙量测量参数有效,否则返回步骤1)重新采样输沙量测量参数;
其中,Rd为预设的决定系数阈值,RMSEd为预设的均方根误差阈值,MAEd为预设的平均绝对误差阈值:
6)根据有效的输沙量测量参数计算输沙量Cs
进一步的,所述标准化数据Q为:
其中:


进一步的,所述标准化协方差矩阵RQ为:
所述特征值λ的计算公式为:
RQQ-λQ=0;
其中,特征值λ1≥λ2…≥λy≥0,y≤6;
所述特征值λh对应的特征向量为th,h=1,2,...,y;
进一步的,所述主影响因素贡献率Mj为:
所述累计贡献率∑Mj为:
进一步的,所述计算模型为:
构建规则i:若x1=Ai,x2=Bi,x3=Ci,x4=Di,x5=Ei,x6=Fi,则:
fi=ti1x1+ti2x2+...+tizxz
其中,i=1,2,...,z;Ai、Bi、Ci、Di、Ei、Fi是规则i对应的非线性参数;
计算模型第1层:对主影响因素输入信号进行模糊化处理,第i个节点的隶属度值为:
其中,{mi,ni,ki}为适应性变量;
计算模型第2层:计算各个模糊规则的触发强度wi
计算模型第3层:根据第二层获得归一化触发强度
计算模型第4层:计算规则输出,计算第i条规则对模型输出的贡献:
计算模型第5层:去模糊化,获得含沙量计算值:
进一步的,所述决定系数R2为:
所述均方根误差RMSE为:
所述平均绝对误差MAE为:
其中,为第i次现场实际测量含沙量真实值;为前i次现场实际测量含沙量真实平均值;m为现场实际测量含沙量的总次数。
进一步的,所述输沙量Cs为:
相对于现有技术而言,本发明的有益效果是:
本发明的输沙量测量方法通过多传感器分别采样与输沙量的计算相关的输沙量测量参数q,经计算确定其中的主影响因素,即对输沙量计算影响较大的输沙量测量参数。然后经计算获得决定系数R2、均方根误差RMSE和平均绝对误差MAE;再经比较确定获得的输沙量测量参数q是否有效,无效则重新获取输沙量测量参数q;有效则根据有效的输沙量测量参数计算输沙量Cs。本发明的输沙量测量方法极大的提高了明渠输沙量的测量精度,确保了对水体泥沙状况进行有效监测。为水力特性、水资源分配以及河流生态系统的平衡分析提供了数据基础,为水资源管理、环境保护、河流工程规划和防洪工程等方面的决策和措施提供了技术保障。
应当理解,发明内容部分中所描述的内容并非旨在限定本发明的实施例的关键或重要特征,亦非用于限制本发明的范围。本发明的其它特征将通过以下的描述变得容易理解。
附图说明
通过阅读参照以下附图所作的对非限制性实施例所作的详细描述,本发明的其它特征、目的和优点将会变得更明显:
图1为基于多传感器阵列的明渠断面输沙量测量方法的流程图。
具体实施方式
下面结合附图和实施例对本发明作进一步的详细说明。可以理解的是,此处所描述的具体实施例仅仅用于解释相关发明,而非对该发明的限定。另外还需要说明的是,为了便于描述,附图中仅示出了与发明相关的部分。
需要说明的是,在不冲突的情况下,本发明中的实施例及实施例中的特征可以相互组合。下面将参考附图并结合实施例来详细说明本发明。
请参考图1,本发明的实施例提供了一种基于多传感器阵列的明渠断面输沙量测量方法,包括如下步骤:
1)按照时间间隔T分别采样输沙量测量参数q,包括水深值q1、流速值q2、温度值q3、含沙量值q4、砂粒径值q5、砂粒表面色度值q6
2)对输沙量测量参数进行标准化得到标准化数据Q,标准化数据Q为:
其中:


3)计算获得Q的标准化协方差矩阵RQ,以及RQ的特征值λ和所述特征值λ对应的特征向量t;
标准化协方差矩阵RQ为:
特征值λ的计算公式为:
RQQ-λQ=0;
其中,特征值λ1≥λ2…≥λy≥0,y≤6;
特征值λh对应的特征向量为th,h=1,2,...,y;
4)选取主影响因素,分别计算各输沙量测量参数对应的主影响因素贡献率Mj以及累计贡献率ΣMj
主影响因素贡献率Mj为:
累计贡献率ΣMj为:
其中,累计贡献率ΣMj≥0.85的输沙量测量参数为主影响因素,再根据Mj值由大到小确定第一主影响因素、第二主影响因素、...、第z主影响因素,z≤输沙量测量参数的种类数量;
5)建立计算模型,经计算模型计算获得含沙量计算值;
计算模型为:
构建规则i:若x1=Ai,x2=Bi,x3=Ci,x4=Di,x5=Ei,x6=Fi,则:
fi=ti1x1+ti2x2+...+tizxz,i=1,2,···,z;
其中,Ai、Bi、Ci、Di、Ei、Fi是规则i对应的非线性参数;
计算模型第1层:对主影响因素输入信号进行模糊化处理,第i个节点的隶属度值为:
其中,{mi,ni,ki}为适应性变量;
计算模型第2层:计算各个模糊规则的触发强度wi
计算模型第3层:根据第二层获得归一化触发强度
计算模型第4层:计算规则输出,计算第i条规则对模型输出的贡献:
计算模型第5层:去模糊化,获得含沙量计算值:
现场进行含沙量的实际测量得到含沙量真实值;由含沙量计算值与含沙量真实值计算获得决定系数R2、均方根误差RMSE、平均绝对误差MAE;
决定系数R2为:
均方根误差RMSE为:
平均绝对误差MAE为:
其中,为第i次现场实际测量含沙量真实值;为前i次现场实际测量含沙量真实平均值;m为现场实际测量含沙量的总次数;
若R2<Rd、RMSE<RMSEd且MAE<MAEd,则该组输沙量测量参数有效,否则返回步骤1)重新采样输沙量测量参数;
其中,Rd为预设的决定系数阈值,RMSEd为预设的均方根误差阈值,MAEd为预设的平均绝对误差阈值:
6)根据有效的输沙量测量参数计算输沙量Cs
在本实施例中,进行输沙量测量时,通过通过多传感器连续采样与输沙量的计算相关的输沙量测量参数q,经标准化处理后得到标准化数据Q,再经计算获得协方差矩阵RQ、特征值λ和特征向量t;然后计算各输沙量测量参数对应的主影响因素贡献率Mj以及累计贡献率∑Mj,并确定主影响因素,即对输沙量计算影响较大的输沙量测量参数;
然后建立计算模型计算获得含沙量计算值,现场进行含沙量的实际测量得到含沙量真实值;由含沙量计算值和含沙量真实值计算获得决定系数R2、均方根误差RMSE和平均绝对误差MAE,再经比较确定获得的输沙量测量参数q是否有效,若无效则重新获取输沙量测量参数q;若有效则根据有效的输沙量测量参数计算输沙量Cs
本发明的输沙量测量方法极大的提高了明渠输沙量的测量精度,确保了对水体泥沙状况进行有效监测,为水力特性、水资源分配以及河流生态系统的平衡分析提供了数据基础,为水资源管理、环境保护、河流工程规划和防洪工程等方面的决策和措施提供了技术保障。
在本说明书的描述中,术语“一个实施例”、“一些实施例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或特点包含于本申请的至少一个实施例或示例中。在本说明书中,对上述术语的示意性表述不一定指的是相同的实施例或实例。而且,描述的具体特征、结构、材料或特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上仅为本申请的优选实施例而已,并不用于限制本申请,对于本领域的技术人员来说,本申请可以有各种更改和变化。凡在本申请的精神和原则 之内,所作的任何修改、等同替换、改进等,均应包含在本申请的保护范围之内。

Claims (7)

  1. 一种基于多传感器阵列的明渠断面输沙量测量方法,其特征在于,包括如下步骤:
    1)按照时间间隔T分别采样输沙量测量参数q,所述输沙量测量参数包括水深值q1、流速值q2、温度值q3、含沙量值q4、砂粒径值q5、砂粒表面色度值q6
    2)对所述输沙量测量参数进行标准化得到标准化数据Q;
    3)计算获得Q的标准化协方差矩阵RQ,以及RQ的特征值λ和所述特征值λ对应的特征向量t;
    4)选取主影响因素,分别计算各输沙量测量参数对应的主影响因素贡献率Mj以及累计贡献率∑Mj
    其中,累计贡献率∑Mj≥0.85的输沙量测量参数为主影响因素,再根据Mj值由大到小确定第一主影响因素、第二主影响因素、...、第z主影响因素,z≤输沙量测量参数的种类数量;
    5)建立计算模型,经计算模型计算获得含沙量计算值;现场进行含沙量的实际测量得到含沙量真实值;由含沙量计算值与含沙量真实值计算获得决定系数R2、均方根误差RMSE、平均绝对误差MAE;若R2<Rd、RMSE<RMSEd且MAE<MAEd,则该组输沙量测量参数有效,否则返回步骤1)重新采样输沙量测量参数;
    其中,Rd为预设的决定系数阈值,RMSEd为预设的均方根误差阈值,MAEd为预设的平均绝对误差阈值:
    6)根据有效的输沙量测量参数计算输沙量Cs
  2. 根据权利要求1所述的基于多传感器阵列的明渠断面输沙量测量方法,其特征在于,所述标准化数据Q为:
    其中:


  3. 根据权利要求2所述的基于多传感器阵列的明渠断面输沙量测量方法,其特征在于,所述标准化协方差矩阵RQ为:
    所述特征值λ的计算公式为:
    RQQ-λQ=0;
    其中,特征值λ1≥λ2…≥λy≥0,y≤6;
    所述特征值λh对应的特征向量为th,h=1,2,...,y;
  4. 根据权利要求3所述的基于多传感器阵列的明渠断面输沙量测量方法,其特征在于,所述主影响因素贡献率Mj为:
    所述累计贡献率∑Mj为:
  5. 根据权利要求4所述的基于多传感器阵列的明渠断面输沙量测量方法,其特征在于,所述计算模型为:
    构建规则i:若x1=Ai,x2=Bi,x3=Ci,x4=Di,x5=Ei,x6=Fi,则:
    fi=ti1x1+ti2x2+...+tizxz,i=1,2,···,z;
    其中,Ai、Bi、Ci、Di、Ei、Fi是规则i对应的非线性参数;
    计算模型第1层:对主影响因素的输入信号进行模糊化处理,第i个节点的隶属度值为:
    其中,{mi,ni,ki}为适应性变量;
    计算模型第2层:计算各个模糊规则的触发强度wi
    计算模型第3层:根据第二层获得归一化触发强度
    计算模型第4层:计算规则输出,计算第i条规则对模型输出的贡献:
    计算模型第5层:去模糊化,获得含沙量计算值:
  6. 根据权利要求5所述的基于多传感器阵列的明渠断面输沙量测量方法,其特征在于,所述决定系数R2为:
    所述均方根误差RMSE为:
    所述平均绝对误差MAE为:
    其中,为第i次现场实际测量含沙量真实值;为前i次现场实际测量含沙量真实平均值;m为现场实际测量含沙量的总次数。
  7. 根据权利要求6所述的基于多传感器阵列的明渠断面输沙量测量方法,其特征在于,所述输沙量Cs为:
PCT/CN2024/108173 2024-05-09 2024-07-29 一种基于多传感器阵列的明渠断面输沙量测量方法 Pending WO2025232002A1 (zh)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006084322A (ja) * 2004-09-16 2006-03-30 Japan Radio Co Ltd 流砂量計測装置
CN201555609U (zh) * 2009-10-29 2010-08-18 唐山现代工控技术有限公司 淤沙宽河道流量测量装置
CN216050065U (zh) * 2021-04-25 2022-03-15 北京润华信通科技有限公司 渠道断面自动测流系统
CN115563579A (zh) * 2022-10-09 2023-01-03 昆明理工大学 一种电容式传感器测量含沙量的数据融合方法
CN116295677A (zh) * 2022-09-07 2023-06-23 中碧科技(江苏)有限公司 一种高泥沙河道大断面自动测流的方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019218263A1 (zh) * 2018-05-16 2019-11-21 深圳大学 基于极限学习机的极限ts模糊推理方法及系统
CN108876047B (zh) * 2018-06-26 2021-07-20 西安理工大学 基于gamlss模型输沙贡献率的研究方法
CN112729433B (zh) * 2020-12-28 2022-05-27 长江水利委员会水文局 集成压力传感的河流流量和输沙量现场实时同步监测方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006084322A (ja) * 2004-09-16 2006-03-30 Japan Radio Co Ltd 流砂量計測装置
CN201555609U (zh) * 2009-10-29 2010-08-18 唐山现代工控技术有限公司 淤沙宽河道流量测量装置
CN216050065U (zh) * 2021-04-25 2022-03-15 北京润华信通科技有限公司 渠道断面自动测流系统
CN116295677A (zh) * 2022-09-07 2023-06-23 中碧科技(江苏)有限公司 一种高泥沙河道大断面自动测流的方法
CN115563579A (zh) * 2022-10-09 2023-01-03 昆明理工大学 一种电容式传感器测量含沙量的数据融合方法

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