CN117633723B - Environment monitoring traceability analysis method, system, terminal and medium based on Internet of things - Google Patents
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Abstract
本发明公开了基于物联网的环境监测溯源分析方法、系统、终端及介质，涉及环境监测技术领域，其技术方案要点是：本发明通过在城市废水排放管路中的排流节点处布置传感器或仪器设备来检测水质参数，依据排流管段两端排流节点的水质参数增量情况对污染源进行溯源分析，且在排流节点的总溯源参数溯源分析时同时考虑了分流作用和稀释作用的影响，以所有不同的第一排流节点对同一第二排流节点的第二溯源参数之和计算得到第二排流节点的总溯源参数，可以在城市复杂管路中对污染源进行准确溯源，且能够提取对污染情况进行预警，避免了污染物在主要流道进行积累而导致污染范围大的情况发生。
The present invention discloses an environmental monitoring source tracing analysis method, system, terminal and medium based on the Internet of Things, and relates to the technical field of environmental monitoring. The main points of the technical scheme are as follows: the present invention detects water quality parameters by arranging sensors or instruments at the drainage nodes in the urban wastewater discharge pipeline, and performs source tracing analysis on the pollution sources according to the water quality parameter increments of the drainage nodes at both ends of the drainage pipe section. In addition, the influence of the diversion effect and the dilution effect are simultaneously considered in the source tracing analysis of the total source tracing parameters of the drainage nodes. The total source tracing parameters of the second drainage node are calculated by the sum of the second source tracing parameters of all different first drainage nodes to the same second drainage node. The pollution sources can be accurately traced in the complex urban pipelines, and early warnings of the pollution situation can be extracted, thereby avoiding the accumulation of pollutants in the main flow channel and causing a large pollution range.
Description
技术领域Technical Field
本发明涉及环境监测技术领域，更具体地说，它涉及基于物联网的环境监测溯源分析方法、系统、终端及介质。The present invention relates to the field of environmental monitoring technology, and more specifically, to an environmental monitoring source tracing analysis method, system, terminal and medium based on the Internet of Things.
背景技术Background technique
水质污染是水中含有大量的重金属、有机毒物等有害化学物质，从而导致水的使用价值降低或丧失。而废水污染源主要分为工业源、农业源、城镇生活源以及少量的集中式污染设施排放源，其中城镇生活源污水排放量的增加是我国废水排放量增加的主要原因。Water pollution refers to the presence of a large amount of heavy metals, organic toxins and other harmful chemicals in water, which reduces or even eliminates the use value of water. The sources of wastewater pollution are mainly industrial, agricultural, urban and small-scale centralized pollution facilities. The increase in urban and small-scale sewage discharge is the main reason for the increase in wastewater discharge in my country.
目前，对于水环境污染监测主要是在主要流道（如河流或河流的汇入点）布置各类传感器来检测各种污染物质是否超出标准值，在检测到存在超标的污染物质时，将污染物质和检测位置信息进行上报。然而，污染物排放后随着水体流动而呈现稀释状态，且由于城市中废水排放管路分布复杂，可能存在部分分流状态，所以污染物在主要流道达到超标状态需要较差时间的积累，这就导致现有的水环境污染监测方法在检测到水污染时，水污染情况已经在较大范围内扩散，其水环境污染监测的及时性较差；此外，受城市中废水排放管路分布复杂的因素影响，现有的水环境污染监测方法无法准确对污染源进行溯源定位，导致后续的水污染处理工作难度较大。At present, water environment pollution monitoring mainly involves placing various sensors in the main flow channels (such as rivers or the confluence points of rivers) to detect whether various pollutants exceed the standard values. When the presence of pollutants exceeding the standard is detected, the pollutants and the detection location information are reported. However, after the pollutants are discharged, they are diluted as the water flows, and due to the complex distribution of wastewater discharge pipelines in cities, there may be partial diversion states, so it takes a long time for pollutants to accumulate in the main flow channels to reach the state of exceeding the standard. This results in the existing water environment pollution monitoring methods. When water pollution is detected, the water pollution has spread over a large area, and the timeliness of its water environment pollution monitoring is poor; in addition, due to the complex distribution of wastewater discharge pipelines in cities, the existing water environment pollution monitoring methods cannot accurately trace the source of pollution, resulting in greater difficulty in subsequent water pollution treatment.
因此，如何研究设计一种能够克服上述缺陷的基于物联网的环境监测溯源分析方法、系统、终端及介质是我们目前急需解决的问题。Therefore, how to research and design an environmental monitoring traceability analysis method, system, terminal and medium based on the Internet of Things that can overcome the above-mentioned defects is a problem that we urgently need to solve.
发明内容Summary of the invention
为解决现有技术中的不足，本发明的目的是提供基于物联网的环境监测溯源分析方法、系统、终端及介质，依据排流管段两端排流节点的水质参数增量情况对污染源进行溯源分析，且在排流节点的总溯源参数溯源分析时同时考虑了分流作用和稀释作用的影响，以所有不同的第一排流节点对同一第二排流节点的第二溯源参数之和计算得到第二排流节点的总溯源参数，可以在城市复杂管路中对污染源进行准确溯源，且能够提取对污染情况进行预警，避免了污染物在主要流道进行积累而导致污染范围大的情况发生。In order to address the deficiencies in the prior art, the purpose of the present invention is to provide an environmental monitoring source tracing analysis method, system, terminal and medium based on the Internet of Things. The pollution source is traced and analyzed according to the water quality parameter increments of the drainage nodes at both ends of the drainage pipe section, and the influence of the diversion effect and the dilution effect are considered simultaneously in the source tracing analysis of the total source tracing parameters of the drainage nodes. The total source tracing parameters of the second drainage node are calculated by the sum of the second tracing parameters of all different first drainage nodes to the same second drainage node. The pollution source can be accurately traced in complex urban pipelines, and early warning of the pollution situation can be extracted to avoid the accumulation of pollutants in the main flow channel and the occurrence of a large pollution range.
本发明的上述技术目的是通过以下技术方案得以实现的：The above technical objectives of the present invention are achieved through the following technical solutions:
第一方面，提供了基于物联网的环境监测溯源分析方法，包括以下步骤：In the first aspect, an environmental monitoring traceability analysis method based on the Internet of Things is provided, comprising the following steps:
建立目标区域内排流节点的分布图，排流节点为至少三个排流管段交汇形成的节点，且排流节点具有至少一个排入方向和至少一个排出方向；Establishing a distribution map of drainage nodes in the target area, where the drainage node is a node formed by the intersection of at least three drainage pipe segments, and the drainage node has at least one inlet direction and at least one outlet direction;
采集各个排流节点的水质参数；Collect water quality parameters at each drainage node;
依据同一排流管段两端排流节点的水质参数之差确定位于排出端的第一排流节点对位于排入端的第二排流节点的第一溯源参数；Determine a first tracing parameter of a first drainage node at a discharge end to a second drainage node at a discharge inlet end according to a difference in water quality parameters between drainage nodes at both ends of the same drainage pipe section;
根据第一排流节点的总溯源参数和第一排流节点在分布图中的结构参数确定第一排流节点对第二排流节点的分解溯源参数；Determine the decomposed tracing parameter of the first drainage node to the second drainage node according to the total tracing parameter of the first drainage node and the structural parameter of the first drainage node in the distribution graph;
以第一溯源参数和相应的分解溯源参数之和确定第一排流节点对第二排流节点的第二溯源参数；Determine a second tracing parameter of the first drainage node to the second drainage node by the sum of the first tracing parameter and the corresponding decomposed tracing parameter;
以所有不同的第一排流节点对同一第二排流节点的第二溯源参数之和计算得到第二排流节点的总溯源参数；The total tracing parameter of the second drainage node is calculated by the sum of the second tracing parameters of all different first drainage nodes to the same second drainage node;
从所有排流节点中筛选出总溯源参数最大的排流节点作为目标节点，并在目标节点的总溯源参数超出污染参数阈值时进行溯源预警。The drainage node with the largest total traceability parameter is selected from all drainage nodes as the target node, and a traceability warning is issued when the total traceability parameter of the target node exceeds the pollution parameter threshold.
进一步的，所述第二排流节点的总溯源参数计算公式具体为：Furthermore, the total tracing parameter calculation formula of the second drainage node is specifically as follows:
； ;
其中，表示第二排流节点/>的总溯源参数；/>表示第二排流节点/>具有不同的第一排流节点的数量；/>表示第一排流节点/>的总溯源参数；/>表示第一排流节点/>对第二排流节点/>的分解系数，由第一排流节点/>在分布图中的结构参数所决定的；/>表示第一排流节点/>对第二排流节点/>的第一溯源参数。in, Indicates the second drainage node/> Total traceability parameters; /> Indicates the second drainage node/> Having different numbers of first drain nodes; /> Indicates the first drainage node/> Total traceability parameters; /> Indicates the first drainage node/> For the second drain node/> The decomposition coefficient of the first drainage node/> Determined by the structural parameters in the distribution diagram; /> Indicates the first drainage node/> For the second drain node/> The first traceability parameter.
进一步的，所述第一溯源参数的计算公式具体为：Furthermore, the calculation formula of the first traceability parameter is specifically:
； ;
其中，表示第一排流节点/>的水质参数；/>表示第二排流节点/>的水质参数。in, Indicates the first drainage node/> Water quality parameters; /> Indicates the second drainage node/> water quality parameters.
进一步的，所述分解系数的计算公式具体为：Furthermore, the calculation formula of the decomposition coefficient is specifically:
； ;
其中，表示第二排流节点/>与第一排流节点/>之间排流管段的排流方向相对于第一排流节点/>的主流方向的方向偏角；/>表示第二排流节点/>与第一排流节点之间排流管段的排流方向相对于第一排流节点/>的主流方向的方向偏角；/>表示第一排流节点/>具有不同的第二排流节点的数量。in, Indicates the second drainage node/> With the first drain node/> The drainage direction of the drainage pipe section is relative to the first drainage node/> The direction deviation angle of the mainstream direction; /> Indicates the second drainage node/> With the first drainage node The drainage direction of the drainage pipe section is relative to the first drainage node/> The direction deviation angle of the mainstream direction; /> Indicates the first drainage node/> There are different numbers of second drain nodes.
进一步的，所述第一排流节点的主流方向为：以第一排流节点/>作为排入端所对应的，且具有最大排流量的排流管段的排流方向；Furthermore, the first drainage node The main flow direction is: from the first drainage node /> The discharge direction of the discharge pipe section corresponding to the discharge inlet and having the maximum discharge flow;
进一步的，所述第一排流节点的主流方向为：与第二排流节点/>和第一排流节点/>之间的排流管段具有最小方向偏角的，且以第一排流节点/>作为排入端所对应的排流管段的排流方向。Furthermore, the first drainage node The main flow direction is: with the second drainage node/> and the first drain node/> The drainage pipe section between them has the smallest direction deviation angle, and the first drainage node is The discharge direction of the discharge pipe section corresponding to the discharge inlet end.
进一步的，该方法还包括：Furthermore, the method further comprises:
筛选出总溯源参数超出污染参数阈值的所有排流节点；Filter out all drainage nodes whose total traceability parameters exceed the pollution parameter threshold;
以筛选出的排流节点为中心确定预设半径范围内所对应的遍历区域；Determine the traversal area corresponding to the preset radius range with the selected drainage node as the center;
若筛选出的排流节点在遍历区域内的总溯源参数最大，则视筛选出的排流节点为区域污染源，并进行预警处理。If the total traceability parameter of the selected drainage node is the largest in the traversed area, the selected drainage node is regarded as the regional pollution source and early warning processing is performed.
第二方面，提供了基于物联网的环境监测溯源分析系统，包括：Secondly, an environmental monitoring and traceability analysis system based on the Internet of Things is provided, including:
图谱构建模块，用于建立目标区域内排流节点的分布图，排流节点为至少三个排流管段交汇形成的节点，且排流节点具有至少一个排入方向和至少一个排出方向；A map construction module, used to establish a distribution map of drainage nodes in a target area, wherein a drainage node is a node formed by the intersection of at least three drainage pipe segments, and the drainage node has at least one inlet direction and at least one outlet direction;
数据采集模块，用于采集各个排流节点的水质参数；Data acquisition module, used to collect water quality parameters of each drainage node;
溯源分析模块，用于依据同一排流管段两端排流节点的水质参数之差确定位于排出端的第一排流节点对位于排入端的第二排流节点的第一溯源参数；A source tracing analysis module, used to determine a first source tracing parameter of a first drainage node at a discharge end to a second drainage node at a discharge inlet end according to a difference in water quality parameters between drainage nodes at both ends of a same drainage pipe section;
溯源分解模块，用于根据第一排流节点的总溯源参数和第一排流节点在分布图中的结构参数确定第一排流节点对第二排流节点的分解溯源参数；A tracing decomposition module, used to determine the decomposition tracing parameters of the first drainage node to the second drainage node according to the total tracing parameters of the first drainage node and the structural parameters of the first drainage node in the distribution graph;
参数求和模块，用于以第一溯源参数和相应的分解溯源参数之和确定第一排流节点对第二排流节点的第二溯源参数；A parameter summing module, used to determine a second tracing parameter of the first drainage node to the second drainage node by the sum of the first tracing parameter and the corresponding decomposed tracing parameter;
溯源叠加模块，用于以所有不同的第一排流节点对同一第二排流节点的第二溯源参数之和计算得到第二排流节点的总溯源参数；A tracing superposition module is used to calculate the total tracing parameter of the second drainage node by summing the second tracing parameters of all different first drainage nodes to the same second drainage node;
溯源预警模块，用于从所有排流节点中筛选出总溯源参数最大的排流节点作为目标节点，并在目标节点的总溯源参数超出污染参数阈值时进行溯源预警。The source tracing warning module is used to select the drainage node with the largest total tracing parameter from all drainage nodes as the target node, and to issue a source tracing warning when the total tracing parameter of the target node exceeds the pollution parameter threshold.
第三方面，提供了一种计算机终端，包含存储器、处理器及存储在存储器并可在处理器上运行的计算机程序，所述处理器执行所述程序时实现如第一方面中任意一项所述的基于物联网的环境监测溯源分析方法。In a third aspect, a computer terminal is provided, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the environmental monitoring and tracing analysis method based on the Internet of Things as described in any one of the first aspects is implemented.
第四方面，提供了一种计算机可读介质，其上存储有计算机程序，所述计算机程序被处理器执行可实现如第一方面中任意一项所述的基于物联网的环境监测溯源分析方法。In a fourth aspect, a computer-readable medium is provided, on which a computer program is stored, and the computer program is executed by a processor to implement the environmental monitoring traceability analysis method based on the Internet of Things as described in any one of the first aspects.
与现有技术相比，本发明具有以下有益效果：Compared with the prior art, the present invention has the following beneficial effects:
1、本发明提供的基于物联网的环境监测溯源分析方法，通过在城市废水排放管路中的排流节点处布置传感器或仪器设备来检测水质参数，依据排流管段两端排流节点的水质参数增量情况对污染源进行溯源分析，且在排流节点的总溯源参数溯源分析时同时考虑了分流作用和稀释作用的影响，以所有不同的第一排流节点对同一第二排流节点的第二溯源参数之和计算得到第二排流节点的总溯源参数，可以在城市复杂管路中对污染源进行准确溯源，且能够提取对污染情况进行预警，避免了污染物在主要流道进行积累而导致污染范围大的情况发生；1. The environmental monitoring source tracing analysis method based on the Internet of Things provided by the present invention detects water quality parameters by arranging sensors or instruments at the drainage nodes in the urban wastewater discharge pipeline, and performs source tracing analysis on the pollution sources according to the water quality parameter increments of the drainage nodes at both ends of the drainage pipe section. In addition, the influence of the diversion effect and the dilution effect are considered in the source tracing analysis of the total source tracing parameters of the drainage nodes. The total source tracing parameters of the second drainage node are calculated by the sum of the second source tracing parameters of all different first drainage nodes to the same second drainage node. The pollution sources can be accurately traced in the complex urban pipelines, and the pollution situation can be extracted for early warning, avoiding the accumulation of pollutants in the main flow channel and causing a large pollution range.
2、本发明在进行溯源分解时，依据排流管段之间的方向偏角为第二排流节点自适应分配结构参数，可以使得溯源分解所得到的分解溯源参数更为准确、可靠；2. When performing source tracing decomposition, the present invention adaptively allocates structural parameters to the second drainage node according to the directional deflection angle between the drainage pipe sections, so that the decomposed source tracing parameters obtained by the source tracing decomposition can be more accurate and reliable;
3、本发明在相应的遍历区域内对超出污染参数阈值的排流节点进行污染源可靠性筛选，能够实现多个污染源同步预警，可以适用于城市中多个污染源缓慢释放的场景。3. The present invention performs pollution source reliability screening on the drainage nodes that exceed the pollution parameter threshold in the corresponding traversal area, which can realize simultaneous early warning of multiple pollution sources and can be applicable to the scenario of slow release of multiple pollution sources in the city.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
此处所说明的附图用来提供对本发明实施例的进一步理解，构成本申请的一部分，并不构成对本发明实施例的限定。在附图中：The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:
图1是本发明实施例1中的流程图；FIG1 is a flow chart of Embodiment 1 of the present invention;
图2是本发明实施例1中分布图的局部示意图；FIG2 is a partial schematic diagram of a distribution diagram in Example 1 of the present invention;
图3是本发明实施例2中的系统框图。FIG3 is a system block diagram of Embodiment 2 of the present invention.
具体实施方式Detailed ways
为使本发明的目的、技术方案和优点更加清楚明白，下面结合实施例和附图，对本发明作进一步的详细说明，本发明的示意性实施方式及其说明仅用于解释本发明，并不作为对本发明的限定。In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary implementation modes of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.
实施例1：基于物联网的环境监测溯源分析方法，如图1所示，包括以下步骤：Embodiment 1: The environmental monitoring source tracing analysis method based on the Internet of Things, as shown in FIG1 , comprises the following steps:
S1：建立目标区域内排流节点的分布图；S1: Establish a distribution map of drainage nodes in the target area;
S2：采集各个排流节点的水质参数；S2: Collect water quality parameters of each drainage node;
S3：依据同一排流管段两端排流节点的水质参数之差确定位于排出端的第一排流节点对位于排入端的第二排流节点的第一溯源参数；S3: determining a first tracing parameter of a first drainage node at the discharge end to a second drainage node at the discharge inlet end according to a difference in water quality parameters between the drainage nodes at both ends of the same drainage pipe segment;
S4：根据第一排流节点的总溯源参数和第一排流节点在分布图中的结构参数确定第一排流节点对第二排流节点的分解溯源参数；S4: determining a decomposed tracing parameter of the first drainage node to the second drainage node according to the total tracing parameter of the first drainage node and the structural parameter of the first drainage node in the distribution graph;
S5：以第一溯源参数和相应的分解溯源参数之和确定第一排流节点对第二排流节点的第二溯源参数；S5: Determine a second tracing parameter of the first drainage node to the second drainage node by using the sum of the first tracing parameter and the corresponding decomposed tracing parameter;
S6：以所有不同的第一排流节点对同一第二排流节点的第二溯源参数之和计算得到第二排流节点的总溯源参数；S6: calculating the total tracing parameter of the second drainage node by taking the sum of the second tracing parameters of all different first drainage nodes to the same second drainage node;
S7：从所有排流节点中筛选出总溯源参数最大的排流节点作为目标节点，并在目标节点的总溯源参数超出污染参数阈值时进行溯源预警。S7: Filter out the drainage node with the largest total traceability parameter from all drainage nodes as the target node, and issue a traceability warning when the total traceability parameter of the target node exceeds the pollution parameter threshold.
排流节点为至少三个排流管段交汇形成的节点，且排流节点具有至少一个排入方向和至少一个排出方向。例如，一个排流节点可以具有一个排入方向和两个排出方向，又例如一个排流节点可以具有两个排入方向和两个排出方向。A drainage node is a node formed by the intersection of at least three drainage pipe segments, and the drainage node has at least one inlet direction and at least one outlet direction. For example, a drainage node may have one inlet direction and two outlet directions, or another example, a drainage node may have two inlet directions and two outlet directions.
水质参数可以仅为一种污染物质的检测值，如浓度。水质参数也可以是多种污染物质的检测值，对于多种污染物质的污染源溯源分析时可以独立分析，也可以联合分析，在此不受限制。Water quality parameters can be the detection value of only one pollutant, such as concentration. Water quality parameters can also be the detection values of multiple pollutants. When tracing the pollution sources of multiple pollutants, they can be analyzed independently or jointly, without limitation here.
第二排流节点的总溯源参数计算公式具体为：The calculation formula for the total traceability parameters of the second drainage node is as follows:
； ;
其中，表示第二排流节点/>的总溯源参数；/>表示第二排流节点/>具有不同的第一排流节点的数量；/>表示第一排流节点/>的总溯源参数；/>表示第一排流节点/>对第二排流节点/>的分解系数，由第一排流节点/>在分布图中的结构参数所决定的；/>表示第一排流节点/>对第二排流节点/>的第一溯源参数。in, Indicates the second drainage node/> Total traceability parameters; /> Indicates the second drainage node/> Having different numbers of first drain nodes; /> Indicates the first drainage node/> Total traceability parameters; /> Indicates the first drainage node/> For the second drain node/> The decomposition coefficient of the first drainage node/> Determined by the structural parameters in the distribution diagram; /> Indicates the first drainage node/> For the second drain node/> The first traceability parameter.
在本实施例中，第一溯源参数的计算公式具体为：In this embodiment, the calculation formula of the first traceability parameter is specifically:
； ;
其中，表示第一排流节点/>的水质参数；/>表示第二排流节点/>的水质参数。in, Indicates the first drainage node/> Water quality parameters; /> Indicates the second drainage node/> water quality parameters.
作为一种可选的实施方式，分解系数可以依据一个排列节点的流入管道的数量进行均匀分配。As an optional implementation, the decomposition coefficients may be evenly distributed according to the number of inflow pipes of an arrangement node.
作为另一种可选的实施方式，为了使得溯源分解所得到的分解溯源参数更为准确、可靠，分解系数的计算公式具体为：As another optional implementation, in order to make the decomposed traceability parameters obtained by the traceability decomposition more accurate and reliable, the calculation formula of the decomposition coefficient is specifically as follows:
； ;
其中，表示第二排流节点/>与第一排流节点/>之间排流管段的排流方向相对于第一排流节点/>的主流方向的方向偏角；/>表示第二排流节点/>与第一排流节点之间排流管段的排流方向相对于第一排流节点/>的主流方向的方向偏角；/>表示第一排流节点/>具有不同的第二排流节点的数量。in, Indicates the second drainage node/> With the first drain node/> The drainage direction of the drainage pipe section is relative to the first drainage node/> The direction deviation angle of the mainstream direction; /> Indicates the second drainage node/> With the first drainage node The drainage direction of the drainage pipe section is relative to the first drainage node/> The direction deviation angle of the mainstream direction; /> Indicates the first drainage node/> There are different numbers of second drain nodes.
作为一种可选的实施方式，第一排流节点的主流方向为：以第一排流节点/>作为排入端所对应的，且具有最大排流量的排流管段的排流方向。As an optional implementation, the first drain node The main flow direction is: from the first drainage node /> The discharge direction of the discharge pipe section corresponding to the discharge inlet end and having the largest discharge flow rate.
作为另一种可选的实施方式，第一排流节点的主流方向为：与第二排流节点/>和第一排流节点/>之间的排流管段具有最小方向偏角的，且以第一排流节点/>作为排入端所对应的排流管段的排流方向。As another optional implementation, the first drainage node The main flow direction is: with the second drainage node/> and the first drain node/> The drainage pipe section between them has the smallest direction deviation angle, and the first drainage node is The discharge direction of the discharge pipe section corresponding to the discharge inlet end.
此外，为了在城市中多个污染源缓慢释放的场景，实现多个污染源同步预警，本发明还包括：筛选出总溯源参数超出污染参数阈值的所有排流节点；以筛选出的排流节点为中心确定预设半径范围内所对应的遍历区域；若筛选出的排流节点在遍历区域内的总溯源参数最大，则视筛选出的排流节点为区域污染源，并进行预警处理。In addition, in order to achieve simultaneous early warning of multiple pollution sources in the scenario where multiple pollution sources are slowly released in the city, the present invention also includes: screening out all drainage nodes whose total tracing parameters exceed the pollution parameter threshold; determining the traversal area corresponding to the preset radius range with the screened drainage node as the center; if the total tracing parameter of the screened drainage node is the largest in the traversal area, the screened drainage node is regarded as a regional pollution source, and early warning processing is performed.
以如图2所示的分布图中的局部管路为例进行说明，从图2中可知，排流节点具有两个排出方向：/>至/>方向和/>至/>方向；而排流节点/>具有两个排入方向，即/>至/>方向和/>至/>，也具有两个排出方向，即/>至/>方向和/>至/>。Take the local pipeline in the distribution diagram shown in Figure 2 as an example. It can be seen from Figure 2 that the drainage node There are two discharge directions: /> To/> Direction and /> To/> direction; and the drainage node/> There are two discharge directions, namely/> To/> Direction and /> To/> , also has two discharge directions, namely/> To/> Direction and /> To/> .
若依据方向偏角来分配分解系数，则至/>方向为/>的主流方向，而/>的取值为2，若/>取值为2时，/>与/>之间的排流管段所对应的方向偏角为0度，而/>与/>之间的排流管段所对应的方向偏角为90度，所以为排流节点/>对排流节点/>的分解系数如下：If the decomposition coefficients are allocated according to the direction deflection angle, then To/> Direction:/> The mainstream direction, and /> The value of is 2, if/> When the value is 2, /> With/> The direction angle of the drainage pipe section between is 0 degrees, and / With/> The direction angle of the drainage pipe section between is 90 degrees, so it is a drainage node/> For drainage nodes/> The decomposition coefficients are as follows:
。 .
实施例2：基于物联网的环境监测溯源分析系统，该系统用于实现实施例1中所记载的基于物联网的环境监测溯源分析方法，如图3所示，包括图谱构建模块、数据采集模块、溯源分析模块、溯源分解模块、参数求和模块、溯源叠加模块和溯源预警模块。Example 2: An environmental monitoring source tracing and analysis system based on the Internet of Things, which is used to implement the environmental monitoring source tracing and analysis method based on the Internet of Things recorded in Example 1, as shown in Figure 3, including a graph construction module, a data acquisition module, a source tracing analysis module, a source tracing decomposition module, a parameter summation module, a source tracing superposition module and a source tracing warning module.
其中，图谱构建模块，用于建立目标区域内排流节点的分布图，排流节点为至少三个排流管段交汇形成的节点，且排流节点具有至少一个排入方向和至少一个排出方向；数据采集模块，用于采集各个排流节点的水质参数；溯源分析模块，用于依据同一排流管段两端排流节点的水质参数之差确定位于排出端的第一排流节点对位于排入端的第二排流节点的第一溯源参数；溯源分解模块，用于根据第一排流节点的总溯源参数和第一排流节点在分布图中的结构参数确定第一排流节点对第二排流节点的分解溯源参数；参数求和模块，用于以第一溯源参数和相应的分解溯源参数之和确定第一排流节点对第二排流节点的第二溯源参数；溯源叠加模块，用于以所有不同的第一排流节点对同一第二排流节点的第二溯源参数之和计算得到第二排流节点的总溯源参数；溯源预警模块，用于从所有排流节点中筛选出总溯源参数最大的排流节点作为目标节点，并在目标节点的总溯源参数超出污染参数阈值时进行溯源预警。Among them, the map construction module is used to establish a distribution map of drainage nodes in the target area. The drainage node is a node formed by the intersection of at least three drainage pipe sections, and the drainage node has at least one inlet direction and at least one outlet direction; the data acquisition module is used to collect water quality parameters of each drainage node; the source tracing analysis module is used to determine the first source tracing parameter of the first drainage node at the outlet end to the second drainage node at the inlet end according to the difference in water quality parameters of the drainage nodes at both ends of the same drainage pipe section; the source tracing decomposition module is used to determine the first source tracing parameter of the first drainage node at the outlet end to the second drainage node at the inlet end according to the total source tracing parameter of the first drainage node and the structure of the first drainage node in the distribution map. A parameter summation module is used to determine the second tracing parameter of the first drainage node to the second drainage node by the sum of the first tracing parameter and the corresponding decomposition tracing parameter; a tracing superposition module is used to calculate the total tracing parameter of the second drainage node by the sum of the second tracing parameters of all different first drainage nodes to the same second drainage node; a tracing warning module is used to screen out the drainage node with the largest total tracing parameter from all drainage nodes as the target node, and issue a tracing warning when the total tracing parameter of the target node exceeds the pollution parameter threshold.
工作原理：本发明通过在城市废水排放管路中的排流节点处布置传感器或仪器设备来检测水质参数，依据排流管段两端排流节点的水质参数增量情况对污染源进行溯源分析，且在排流节点的总溯源参数溯源分析时同时考虑了分流作用和稀释作用的影响，以所有不同的第一排流节点对同一第二排流节点的第二溯源参数之和计算得到第二排流节点的总溯源参数，可以在城市复杂管路中对污染源进行准确溯源，且能够提取对污染情况进行预警，避免了污染物在主要流道进行积累而导致污染范围大的情况发生。Working principle: The present invention detects water quality parameters by arranging sensors or instruments at the drainage nodes in the urban sewage discharge pipeline, and performs source tracing analysis on the pollution sources according to the water quality parameter increments of the drainage nodes at both ends of the drainage pipe section. The influence of the diversion effect and the dilution effect are simultaneously considered in the source tracing analysis of the total tracing parameters of the drainage nodes. The total tracing parameters of the second drainage node are calculated by adding the second tracing parameters of all different first drainage nodes to the same second drainage node. The pollution sources can be accurately traced in complex urban pipelines, and early warnings of pollution situations can be extracted to avoid the accumulation of pollutants in the main flow channels and the occurrence of a large pollution range.
本领域内的技术人员应明白，本申请的实施例可提供为方法、系统、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质（包括但不限于磁盘存储器、CD-ROM、光学存储器等）上实施的计算机程序产品的形式。Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.
本申请是参照根据本申请实施例的方法、设备（系统）、和计算机程序产品的流程图和／或方框图来描述的。应理解可由计算机程序指令实现流程图和／或方框图中的每一流程和／或方框、以及流程图和／或方框图中的流程和／或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和／或方框图一个方框或多个方框中指定的功能的装置。The present application is described with reference to the flowcharts and/or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and/or box in the flowchart and/or block diagram, as well as the combination of the processes and/or boxes in the flowchart and/or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate a device for implementing the functions specified in one process or multiple processes in the flowchart and/or one box or multiple boxes in the block diagram.
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和／或方框图一个方框或多个方框中指定的功能。These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device that implements the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和／或方框图一个方框或多个方框中指定的功能的步骤。These computer program instructions may also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and/or one or more boxes in the block diagram.
以上的具体实施方式，对本发明的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上仅为本发明的具体实施方式而已，并不用于限定本发明的保护范围，凡在本发明的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。The above specific implementation methods further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above are only specific implementation methods of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
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