A multi-model integrated and coupled ecological scenario simulation method and system

Abstract

The present invention relates to an ecological scenario simulation method and system for multi-model integration and coupling, belonging to the technical field of environmental quality assessment, and comprising the following steps: Step 1): acquiring a three-dimensional space target area, setting the three-dimensional space target area as a three-dimensional space model, calculating the spatial scale of the three-dimensional space model, and collecting data in the three-dimensional space model; Step 2): when the three-dimensional space model is in a dynamic state, monitoring the concentration of water pollutants in the three-dimensional space model; Step 3): when the three-dimensional space model is in a static state, monitoring the concentration of water pollutants in the three-dimensional space model; Step 4): comparing the concentration of water pollutants when the three-dimensional space model is in a dynamic state and in a static state; The beneficial effect of the present invention: by comparing the concentration of water pollutants when the three-dimensional space model is in a dynamic state and in a static state, digital monitoring and assessment of the water environment are realized.

Description

Technical Field

[0001] The present invention belongs to the technical field of environmental quality assessment, and in particular relates to an ecological scenario simulation method and system for multi-model integration and coupling. Background Art

[0002] Water ecological security protection and governance is the focus of the sustainable development strategy. Currently, a large number of rivers, lakes, reservoirs and other water environments are suffering from serious water pollution problems. Water ecological security has become the most prominent issue among many ecological security issues. In order to effectively deal with water ecological security issues in rivers and lakes, it is urgent to grasp the dynamic changes of water environment in a certain area. Strengthening the monitoring of water ecological security and obtaining real-time changes in water quality and surrounding ecological environment are necessary means to protect water ecological security, which has a positive role and far-reaching significance for the protection and governance of water environment.

[0003] Water environment monitoring is the basis of water resource management and protection. At present, a monitoring network has been basically formed with large rivers, lakes and reservoirs as monitoring objects. Conventional monitoring has been quite mature, and automatic water quality monitoring stations have been established in important rivers, lakes and reservoirs. Conventional monitoring is still in the control indicators of surface water environmental quality standards, and still adopts a monitoring indicator system based on comprehensive indicators to monitor water ecology and water environment. Summary of the invention

[0004] The present invention provides a multi-model integrated and coupled ecological scenario simulation method and system for solving the technical problem of how to realize digital monitoring and evaluation of water environment. The present invention further optimizes the comparison of the concentration of water pollutants when the three-dimensional space model is in a dynamic state and in a static state, so as to realize digital monitoring and evaluation of water environment.

[0005] In order to achieve the above object, the present invention is implemented by the following technical solutions:

[0006] A multi-model integration and coupling ecological scenario simulation method includes the following steps:

[0007] Step 1): Acquire a three-dimensional space target area, set the three-dimensional space target area as a three-dimensional space model, calculate the spatial scale of the three-dimensional space model, and collect data in the three-dimensional space model; wherein the data of water substances in the three-dimensional space model are collected by using a point sampling method;

[0008] Step 2): When the three-dimensional space model is in a dynamic state, the concentration of water pollutants in the three-dimensional space model is monitored by using the fluid in the three-dimensional space model; wherein the concentration of water pollutants in the three-dimensional space model is monitored by using a fluid steady flow model method;

[0009] Step 3): When the three-dimensional space model is in a static state, the concentration of water pollutants in the three-dimensional space model is monitored using a grid volume model method;

[0010] Step 4): Compare the concentrations of water pollutants when the three-dimensional space model is in a dynamic state and when it is in a static state.

[0011] Optionally, in step 1), the acquired three-dimensional space target area is set as a rectangular three-dimensional space target area, so that the three-dimensional space target area is the same as the actual three-dimensional space target area.

[0012] Furthermore, the spatial scale of the three-dimensional spatial model is calculated by using a spatial scale calculation method, which comprises the following steps:

[0013] Step 11): Set the origin and set the X-axis, Y-axis and Z-axis on the three-dimensional space model;

[0014] Step 12): Calculate the spatial scale of the three-dimensional space model on the X-axis, Y-axis and Z-axis respectively using the flow velocity of the fluid.

[0015] Specifically, in step 12), the spatial scale of the three-dimensional space model is calculated using the flow velocity of the fluid, and the following formula (1) is used for calculation:

[0016] (1);

[0017] in, is the average flow velocity of the fluid in the X-axis direction. The fluid flows from one end of the X-axis to the other end. For a certain moment, is the total number of moments, for The sum of the moments is a time period. or is the length of the fluid in the X-axis direction;

[0018] is the average flow velocity of the fluid in the y-axis direction. The fluid flows from one end of the y-axis to the other end. For a certain moment, is the total number of moments, for The sum of the moments is a time period. or is the length of the fluid in the y-axis direction;

[0019] is the average flow velocity of the fluid in the z-axis direction. The fluid flows from one end of the z-axis to the other end. is the time difference of the fluid flowing from one end to the other end of the z-axis, or is the length of the fluid in the z-axis direction;

[0020] are the lengths of the fluid in the x-axis, y-axis and z-axis directions respectively; × × Get the spatial volume of the three-dimensional space model.

[0021] Optionally, in step 1), the point sampling method is the following formula (2):

[0022] (2);

[0023] in, is the coordinate of a point in the three-dimensional space model, The material collected at a certain point in the three-dimensional space model. or A point in the three-dimensional space model carries the collected material.

[0024] Optionally, in step 2), the fluid steady flow model method monitors the concentration of water pollutants in the three-dimensional space model using the following formula (3):

[0025] (3);

[0026] in, is the water pollutant in the three-dimensional space model, , and are the average flow velocities of the fluid in the x-axis, y-axis and z-axis directions, respectively. The velocity volume of the fluid, is the velocity volume of the fluid with water contamination;

[0027] , and are the lengths of the fluid in the x-axis, y-axis and z-axis directions, is the volume of the three-dimensional space model;

[0028] It is the ratio of water pollutants in the velocity volume of the fluid to the volume of the three-dimensional space model; It is the concentration of water pollutants in the three-dimensional space model when the three-dimensional space model is in a dynamic state.

[0029] Optionally, in step 3), the grid volume model method adopts the following formula (4):

[0030] (4);

[0031] in, A volume unit of a three-dimensional space model, is the serial number of the volume unit, is the total number of volume units in the three-dimensional space model, for Select a certain volume unit from the volume units. For a volume unit that has been screened out, is the volume of the three-dimensional space model, It is the ratio of water pollutants contained in a certain volume unit volume to the volume of the three-dimensional space model. It is the concentration of water pollutants in the three-dimensional space model when the three-dimensional space model is in a static state.

[0032] Optionally, in step 4), the concentrations of water pollutants when the three-dimensional space model is in a dynamic state and in a static state are compared to obtain the concentrations of the three-dimensional space model in the two states; if the concentration of water pollutants when the three-dimensional space model is in a static state is greater than the concentration of water pollutants when the three-dimensional space model is in a dynamic state, the ecological water pollution is serious; if the concentration of water pollutants when the three-dimensional space model is in a static state is less than or equal to the concentration of water pollutants when the three-dimensional space model is in a dynamic state, the ecological water pollution is not serious.

[0033] A multi-model integrated and coupled ecological scenario simulation system is used to execute a multi-model integrated and coupled ecological scenario simulation method.

[0034] Beneficial effects of the present invention:

[0035] The present invention sets a water flow area in a certain three-dimensional space on an actual riverbed as a three-dimensional space model, randomly collects data of substances in the water in the three-dimensional space model, and identifies the substances in the water. When the three-dimensional space model is in a dynamic state, the fluid in the three-dimensional space model is used to monitor the concentration of water pollutants in the three-dimensional space model. When the three-dimensional space model is in a static state, the concentration of water pollutants in the three-dimensional space model is monitored, and the concentrations of water pollutants when the three-dimensional space model is in a dynamic state and in a static state are compared. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0037] Figure 1It is a schematic diagram of the system structure of the present invention;

[0038] Figure 2 It is a schematic diagram of a three-dimensional space model of the present invention;

[0039] Figure 3 It is a schematic diagram of the workflow of the present invention. DETAILED DESCRIPTION

[0040] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0041] Example 1

[0042] like Figure 1 As shown, this embodiment provides an ecological scenario simulation system with multi-model integration and coupling, including: a first acquisition module, a model building module, a second acquisition module, a first monitoring module, a second monitoring module and a concentration comparison module.

[0043] The first acquisition module is used to acquire the three-dimensional space target area;

[0044] The model building module is used to build a three-dimensional space model and calculate the spatial scale of the three-dimensional space model;

[0045] The second acquisition module is used to randomly acquire data of water substances in the three-dimensional space model in the model building module;

[0046] The first monitoring module is used to monitor the concentration of water pollutants in the three-dimensional space model when the three-dimensional space model is in a dynamic state;

[0047] The second monitoring module is used to monitor the concentration of water pollutants in the three-dimensional space model when the three-dimensional space model is in a static state;

[0048] The concentration comparison module is used to compare the concentration of water pollutants when the three-dimensional space model is in a dynamic state and when it is in a static state.

[0049] The specific circuit connection relationship of each module is as follows Figure 1 shown.

[0050] Example 2

[0051] Combination Figure 2 and Figure 3 As shown, Figure 3 As shown, this embodiment provides an ecological scenario simulation method of multi-model integration and coupling, comprising the following steps:

[0052] Step 1): obtain a three-dimensional spatial target area (a water flow area in a certain three-dimensional space on the actual riverbed), set the three-dimensional spatial target area as a three-dimensional spatial model, calculate the spatial scale of the three-dimensional spatial model, and collect data in the three-dimensional spatial model; wherein, a point sampling method is used to randomly collect data on water substances in the three-dimensional spatial model;

[0053] Step 2): When the three-dimensional space model is in a dynamic state, the concentration of water pollutants in the three-dimensional space model is monitored by using the fluid in the three-dimensional space model; wherein the concentration of water pollutants in the three-dimensional space model is monitored by using a fluid steady flow model method;

[0054] Step 3): When the three-dimensional space model is in a static state, the concentration of water pollutants in the three-dimensional space model is monitored using a grid volume model method;

[0055] Step 4): Compare the concentrations of water pollutants when the three-dimensional space model is in a dynamic state and when it is in a static state.

[0056] Specifically, in step 1), the acquired three-dimensional space target area is set to a rectangle (such as Figure 2 The three-dimensional space target area (as shown) is made the three-dimensional space target area the same as the actual three-dimensional space target area.

[0057] The spatial scale of the three-dimensional spatial model (the volume of the three-dimensional spatial model) is calculated by using a spatial scale calculation method, which comprises the following steps:

[0058] Step 11): Set the origin and set the X-axis, Y-axis and Z-axis on the three-dimensional space model;

[0059] Step 12): Calculate the spatial scale of the three-dimensional space model on the X-axis, Y-axis and Z-axis respectively using the flow velocity of the fluid.

[0060] Furthermore, in step 12), the spatial scale of the three-dimensional space model is calculated using the flow velocity of the fluid, and the following formula (1) is used for calculation:

[0061] (1);

[0062] in, It is the average flow velocity of the fluid or water flow in the X-axis direction. The fluid flows from one end of the X-axis to the other end (the speed of the water flow from the upstream direction to the downstream direction). For a certain moment, is the total number of moments, for The sum of the moments is used to obtain a time period, which is the flow time of the water on the X-axis of the three-dimensional space model. or is the length of the fluid in the X-axis direction, i.e., the length of the three-dimensional space model in the X-axis direction;

[0063] is the average flow velocity of the fluid in the y-axis direction, the fluid flows from one end of the y-axis to the other end (perpendicular to the speed of the water flow from upstream to downstream, the fluid will flow in the y-axis direction due to the wind), For a certain moment, is the total number of moments, for The sum of the moments is used to obtain a time period, which is the flow time of the water on the y-axis of the three-dimensional space model. or is the length of the fluid in the y-axis direction, i.e., the length of the three-dimensional space model in the y-axis direction;

[0064] is the average flow velocity of the fluid in the z-axis direction. The fluid flows from one end of the z-axis to the other end (water flows upward, from the ground to the highest point). is the time difference of water flowing from the ground to the highest point, that is, the water flow in the three-dimensional space model from the lowest point ( Figure 2 The time when the xoy plane or ground) reaches the highest point, or is the length of the fluid in the z-axis direction, that is, the length of the three-dimensional space model in the z-axis direction;

[0065] are the lengths of the fluid in the x-axis, y-axis and z-axis directions respectively; × × Get the spatial volume of the three-dimensional space model.

[0066] In addition, in step 1), the point sampling method is as follows:

[0067] (2);

[0068] in, is the coordinate of a point in the three-dimensional space model, The material collected at a certain point in the three-dimensional space model. or The point sampling method is to randomly collect data at a certain point in the three-dimensional space model. A certain point may or may not contain water pollutants. It is just to randomly collect data at a certain point in the three-dimensional space model.

[0069] In step 2), the fluid steady flow model method monitors the concentration of water pollutants in the three-dimensional space model, using the following formula (3):

[0070] (3);

[0071] in, is the water pollutant in the three-dimensional space model, , and are the average flow velocities of the fluid in the x-axis, y-axis and z-axis directions, respectively. The velocity volume of the fluid, is the velocity volume of the fluid with water contamination;

[0072] , and are the lengths of the fluid in the x-axis, y-axis and z-axis directions, is the volume of the three-dimensional space model;

[0073] It is the ratio of water pollutants in the velocity volume of the fluid to the volume of the three-dimensional space model; It is the concentration of water pollutants in the three-dimensional space model when the three-dimensional space model is in a dynamic state.

[0074] In step 3), the grid volume model method uses the following formula (4):

[0075] (4);

[0076] in, A volume unit of a three-dimensional space model, is the serial number of the volume unit, is the total number of volume units in the three-dimensional space model, for Select a certain volume unit from the volume units. For a volume unit that has been screened out, is the volume of the three-dimensional space model, It is the ratio of water pollutants contained in a certain volume unit volume to the volume of the three-dimensional space model. It is the concentration of water pollutants in the three-dimensional space model when the three-dimensional space model is in a static state.

[0077] For the fluid steady flow model method and the grid volume model method, the water pollutants in the three-dimensional space model The point sampling method is to randomly find each point in the three-dimensional space model, collect the water substances at each point, and identify and confirm the material composition of each point (usually), so as to know the water pollutants in the three-dimensional space model. It is a certain type or several types of substances, such as: a specific acidic substance or a specific alkaline substance or a specific acid and alkaline mixture.

[0078] In step 4), the concentrations of water pollutants when the three-dimensional space model is in a dynamic state and in a static state are compared to obtain the concentrations of the three-dimensional space model in the two states; if the concentration of water pollutants when the three-dimensional space model is in a static state is greater than the concentration of water pollutants when the three-dimensional space model is in a dynamic state, the ecological water pollution is serious; if the concentration of water pollutants when the three-dimensional space model is in a static state is less than or equal to the concentration of water pollutants when the three-dimensional space model is in a dynamic state, the ecological water pollution is not serious.

[0079] Finally, by comparing the concentrations of water pollutants when the three-dimensional space model is in a dynamic state and when it is static, the concentrations of the three-dimensional space model in the two states are obtained.

[0080] Example 3

[0081] like Figure 2 As shown, the present invention sets a water flow area in a certain three-dimensional space on the actual riverbed as Figure 2 A three-dimensional space model is developed, data of substances in the water are randomly collected in the three-dimensional space model, and the substances in the water are identified. When the three-dimensional space model is in a dynamic state, the fluid in the three-dimensional space model is used to monitor the concentration of water pollutants in the three-dimensional space model. When the three-dimensional space model is in a static state, the concentration of water pollutants in the three-dimensional space model is monitored, and the concentrations of water pollutants when the three-dimensional space model is in a dynamic state are compared with those when the three-dimensional space model is in a static state.

[0082] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A multi-model integration and coupling ecological scenario simulation method, characterized in that: The steps include: Step 1): Acquire a three-dimensional space target area, set the three-dimensional space target area as a three-dimensional space model, calculate the spatial scale of the three-dimensional space model, and collect data in the three-dimensional space model; wherein the data of water substances in the three-dimensional space model are collected by using a point sampling method; Step 2): When the three-dimensional space model is in a dynamic state, the concentration of water pollutants in the three-dimensional space model is monitored by using the fluid in the three-dimensional space model; wherein the concentration of water pollutants in the three-dimensional space model is monitored by using a fluid steady flow model method; In step 2), the fluid steady flow model method monitors the concentration of water pollutants in the three-dimensional space model using the following formula (3): (3)； in, is the water pollutant in the three-dimensional space model, , and are the average flow velocities of the fluid in the x-axis, y-axis and z-axis directions, respectively. The velocity volume of the fluid, is the velocity volume of the fluid with water contamination; , and are the lengths of the fluid in the x-axis, y-axis and z-axis directions, is the volume of the three-dimensional space model; It is the ratio of water pollutants in the velocity volume of the fluid to the volume of the three-dimensional space model; is the concentration of water pollutants in the three-dimensional space model when the three-dimensional space model is in a dynamic state; Step 3): When the three-dimensional space model is in a static state, the concentration of water pollutants in the three-dimensional space model is monitored using a grid volume model method; Wherein, in the step 3), the grid volume model method adopts the following formula (4): (4)； in, A volume unit of a three-dimensional space model, is the serial number of the volume unit, is the total number of volume units in the three-dimensional space model, for Select a certain volume unit from the volume units. For a volume unit that has been screened out, is the volume of the three-dimensional space model, It is the ratio of water pollutants contained in a certain volume unit volume to the volume of the three-dimensional space model. is the concentration of water pollutants in the three-dimensional space model when the three-dimensional space model is in a static state; Step 4): Compare the concentrations of water pollutants when the three-dimensional space model is in a dynamic state and when it is in a static state.

2. The multi-model integrated and coupled ecological scenario simulation method according to claim 1, characterized in that: In the step 1), the acquired three-dimensional space target area is set as a rectangular three-dimensional space target area, so that the three-dimensional space target area is the same as the actual three-dimensional space target area.

3. The multi-model integrated and coupled ecological scenario simulation method according to claim 2 is characterized in that: The spatial scale of the three-dimensional spatial model is calculated by using a spatial scale calculation method, which comprises the following steps: Step 11): Set the origin and set the X-axis, Y-axis and Z-axis on the three-dimensional space model; Step 12): Calculate the spatial scale of the three-dimensional space model on the X-axis, Y-axis and Z-axis respectively using the flow velocity of the fluid.

4. The multi-model integrated and coupled ecological scenario simulation method according to claim 3 is characterized in that: In the step 12), the spatial scale of the three-dimensional space model is calculated using the flow velocity of the fluid, and the following formula (1) is used for calculation: (1)； in, is the average flow velocity of the fluid in the X-axis direction. The fluid flows from one end of the X-axis to the other end. For a certain moment, is the total number of moments, for The sum of the moments is a time period. or is the length of the fluid in the X-axis direction; is the average flow velocity of the fluid in the y-axis direction. The fluid flows from one end of the y-axis to the other end. For a certain moment, is the total number of moments, for The sum of the moments is a time period. or is the length of the fluid in the y-axis direction; is the average flow velocity of the fluid in the z-axis direction. The fluid flows from one end of the z-axis to the other end. is the time difference of the fluid flowing from one end to the other end of the z-axis, or is the length of the fluid in the z-axis direction; are the lengths of the fluid in the x-axis, y-axis and z-axis directions respectively; × × Get the spatial volume of the three-dimensional space model.

5. The multi-model integrated and coupled ecological scenario simulation method according to claim 1, characterized in that: In the step 1), the point sampling method is the following formula (2): (2)； in, is the coordinate of a point in the three-dimensional space model, The material collected at a certain point in the three-dimensional space model. or A point in the three-dimensional space model carries the collected material.

6. The multi-model integrated and coupled ecological scenario simulation method according to claim 1, characterized in that: In the step 4), the concentrations of water pollutants when the three-dimensional space model is in a dynamic state and when it is in a static state are compared to obtain the concentrations when the three-dimensional space model is in two states; if the concentration of water pollutants when the three-dimensional space model is in a static state is greater than the concentration of water pollutants when the three-dimensional space model is in a dynamic state, then the ecological water pollution is serious; If the concentration of water pollutants when the three-dimensional space model is in a static state is less than or equal to the concentration of water pollutants when the three-dimensional space model is in a dynamic state, the ecological water pollution is not serious.

7. A multi-model integrated and coupled ecological scenario simulation system, used to execute a multi-model integrated and coupled ecological scenario simulation method according to any one of claims 1 to 6, characterized in that: include: The first acquisition module is used to acquire a three-dimensional space target area; A model building module, used for building a three-dimensional space model and calculating the spatial scale of the three-dimensional space model; The second acquisition module is used to randomly acquire data of water substances in the three-dimensional space model in the model building module; The first monitoring module is used to monitor the concentration of water pollutants in the three-dimensional space model when the three-dimensional space model is in a dynamic state; The second monitoring module is used to monitor the concentration of water pollutants in the three-dimensional space model when the three-dimensional space model is in a static state; A concentration comparison module is used to compare the concentration of water pollutants when the three-dimensional space model is in a dynamic state and when it is in a static state; The first acquisition module is connected to the second acquisition module through the model building module circuit, the second acquisition module circuit is connected to the first monitoring module and the second monitoring module, and the first monitoring module and the second monitoring module circuit are connected to the concentration comparison module.

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