Automatic monitoring and early warning method and system for safe operation of water environment

Abstract

The invention relates to the technical field of water environment monitoring, in particular to an automatic monitoring and early warning method and system for safe operation of a water environment, monitoring of rivers in a monitored water area is achieved by partitioning and numbering the monitored water area, a river intersection is used as a demarcation point in the partitioning, and the intersection is located in the next partitioning. A monitoring module is arranged at the tail end of each subarea to monitor the river flow and the pollutant content, the predicted pollutant content of the river subarea with the intersection is obtained by establishing a pollutant complete mixing model, and the influence of the pollutant content of the upstream subarea on the downstream subarea is judged by comparing a set threshold value with the predicted pollutant content. And judging whether other newly-added pollution sources exist in the subarea or not by comparing the actual pollutant content of the subarea with the predicted pollutant content. Therefore, whether the source of the standard-exceeding pollutants is caused by the pollution source in the current river subarea or caused by the confluence upstream subarea can be judged.

Description

Technical Field

[0001] The present invention relates to the technical field of water environment monitoring, and in particular to an automatic monitoring and early warning method and system for safe operation of a water environment. Background Art

[0002] Monitoring the water environment and preventing pollutants in rivers from exceeding the standard is an important part of environmental governance. Existing environmental governance usually focuses on the pollution indicators of the current river, but rivers converge, so there is a situation where the pollutants in the current river do not exceed the standard, but after merging into the next river, the pollutants in the next river exceed the standard. In the existing technology, it is difficult to find out whether the pollutants that exceed the standard come from the current river or from the river that converged before. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides the following technical solutions: a method for automatic detection and early warning of safe operation of water environment, comprising the steps of: S1. Divide the rivers in the monitoring area into different zones, use the river confluence as the dividing point of the zones and number the zones. The river confluence belongs to the next zone, set a monitoring module at the end of the river in each zone, and execute the next step.

[0004] S2. Use the monitoring module to monitor and collect the actual data of each upstream partition in real time, including river flow and pollutant content, and then execute the next step.

[0005] S3. Establish a pollutant complete mixing model based on the actual data obtained in real time in step S2, obtain the predicted pollutant content of the next sub-district river, and execute the next step.

[0006] S4. Set a threshold value for the pollutant content of each partition, compare the predicted pollutant content in the partition with the intersection with the threshold value, and issue an alarm signal when the predicted pollutant content is greater than the threshold value, otherwise execute the next step.

[0007] S5. Compare the actual pollutant content in the partition with the intersection with the predicted pollutant content of the current partition. When the actual pollutant content of the current partition is greater than the predicted pollutant content of the current partition, issue an alarm signal, otherwise execute the next step.

[0008] S6. Record the changes in the actual data of each partition. When the predicted pollutant content of a subsequent partition exceeds the threshold after the actual data changes, mark the partition where the actual data has changed and issue an alarm signal, and then execute step S2.

[0009] Preferably, the pollutant complete mixing model expression is: , where P is the predicted pollutant content of the next partition, is the flow of the first river that flows into the next subdivision, is the pollutant content of the first river that flows into the next sub-district, is the flow of the second river that flows into the next subdivision, is the pollutant content of the second river that flows into the next sub-district, is the flow of the nth river flowing into the next partition, is the pollutant content of the nth river flowing into the next partition, where n is a natural number greater than or equal to 2.

[0010] Preferably, in step S5, when the actual pollutant content of the current partition is greater than the predicted pollutant content of the current partition and is manually determined to have no impact, the pollutant complete mixing model of the current partition is modified to , where The pollutant content that is judged to have no impact in the current partition.

[0011] Preferably, the pollutant level is a persistent pollutant level.

[0012] Preferably, after setting the threshold value of the pollutant content in each partition in step S4, an alarm signal is issued when the actual pollutant content in the current partition exceeds the threshold value.

[0013] An automatic detection and early warning system for safe operation of water environment executes the above method, including a processing core, a storage module, and a monitoring module. The monitoring module includes a river flow monitoring module and a pollutant content monitoring module. The storage module is used to store actual data obtained by the monitoring module.

[0014] Preferably, the river flow monitoring module includes a Doppler ultrasonic flowmeter, and the pollutant content monitoring module is a water quality detector for monitoring persistent pollutants.

[0015] Compared with the prior art, the present invention has the following beneficial effects: (1) Divide the rivers in the monitoring area into different zones, with the river confluence as the dividing point of each zone. Calculate the pollutant content of each zone before the confluence by establishing a pollutant complete mixing model and predict the pollutant content in the zone after the confluence to determine whether the pollutant content in each river zone that does not exceed the standard before the confluence will cause the pollutant content in the next river zone to exceed the standard after the confluence. (2) By comparing the predicted pollutant content of the sub-area with the actual pollutant content, it is determined whether there are other new pollutant sources in the current sub-area, and the pollutant complete mixing model is modified according to the specific situation of the new pollutant sources; (3) Record the changes in the actual data monitored in each zone. When the pollutant content in one zone exceeds the threshold, provide the staff with the actual data of the changes so that they can trace the cause of the excess.

[0016] Other advantages, objectives and features of the present invention will be set forth in part in the following description and, in part, will be apparent to those skilled in the art based on an examination of the following or may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the process of the present invention; Figure 2 It is a functional structure diagram of the system of the present invention; Figure 3 Schematic diagram of the working process of the system of the present invention. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-Figure 3 The present invention provides an automatic detection and early warning system for safe operation of a water environment, including a processing core, a storage module, and a monitoring module. The monitoring module includes a river flow monitoring module and a pollutant content monitoring module. The storage module is used to store actual data obtained by the monitoring module.

[0020] The river flow monitoring module includes Doppler ultrasonic flowmeter or radar flowmeter and other equipment capable of monitoring river flow.

[0021] The pollutant monitoring module is a water quality detector specially used to monitor persistent pollutants, including fluoride water quality detector, chloride water quality detector and various heavy metal water quality detectors and other monitoring equipment. One or more of them can be selected according to the actual monitoring needs, and one or more persistent pollutants can be monitored separately accordingly.

[0022] The control method of the system comprises the steps of: S1. Divide the rivers in the monitoring area into zones, with the river confluence as the dividing point of the zones and numbering the zones. The river confluence belongs to the next zone. Therefore, there is a situation where a river is divided into multiple zones by multiple confluences, and the zones are numbered to facilitate the establishment of the corresponding relationship between the zones. For example, the upstream zones corresponding to zone 4 are zones 1, 2 and 3, and the upstream zones corresponding to zone 7 are zones 5 and 6, etc., which is convenient for tracing the source when marking the zones later. A monitoring module is set at the end of the river in each zone, so that the actual data monitored by the monitoring module is the final data of the river in this zone, which is convenient for the accuracy of subsequent calculations. Since there are multiple rivers that converge closely and continuously, the setting of the zones must also consider the length of the mixed section, that is, the length of the zone must be at least greater than the length of the mixed section to ensure that the data collected by the monitoring module set at the end of the zone can be accurate. Based on the different specific conditions of each river, it is necessary to measure the length of the mixed section at the confluence of each river, and the existing empirical formula for calculating the mixed section cannot be directly applied. When there is another river partition that flows into the length of the mixed section, the river partition that flows into it is classified as the upstream river partition of the river partition that flows into the intersection that forms the mixed section, and the length of the mixed section is remeasured starting from the river partition that flows into it. After the partition and monitoring module settings are completed, proceed to the next step.

[0023] S2. Use the monitoring module to monitor and collect the actual data of each upstream partition in real time, including river flow and pollutant content, and then execute the next step.

[0024] S3. Establish a pollutant complete mixing model based on the actual data obtained in real time in step S2 to obtain the predicted pollutant content of the next subdivided river. The pollutant complete mixing model expression is: , where P is the predicted pollutant content of the next partition, is the flow of the first river that flows into the next subdivision, is the pollutant content of the first river that flows into the next sub-district, is the flow of the second river that flows into the next subdivision, is the pollutant content of the second river that flows into the next sub-district, is the flow of the nth river flowing into the next partition, is the pollutant content of the nth river that flows into the next sub-area, and n is a natural number greater than or equal to 2. The model obtains the predicted pollutant content after the confluence of the next sub-area by counting the content of persistent pollutants in each river before the confluence, that is, only when there is a confluence formed by the confluence of two river sub-areas, the river sub-area with the confluence has the predicted pollutant content belonging to the sub-area, and the sub-area without the confluence has no predicted pollutant content. After obtaining the data of the predicted pollutant content, the next step is executed.

[0025] S4. Set the threshold value of the pollutant content of each partition, compare the predicted pollutant content in the partition with the intersection with the threshold value, and send an alarm signal when the predicted pollutant content is greater than the threshold value. The threshold value of the pollutant content is the monitoring standard of the partition. In this embodiment, the multiple partitions can set the same threshold standard or different threshold standards according to the actual situation. Whether the threshold standards of each partition are the same does not affect the technical effect of this method. When the predicted pollutant content of the current partition is greater than the threshold value of the pollutant content of the current partition, it means that the pollutant content of the current partition exceeds the standard due to the river partition before the confluence, so an alarm signal is sent to warn the staff to further manage the river partition before the confluence. If the predicted pollutant content of the current partition does not exceed the pollutant content threshold of the current partition, it means that the pollutant content in the river partition before the confluence is not enough to cause the pollutant content of the river partition with the confluence after the confluence to exceed the standard. And after setting the threshold, when the actual pollutant content of the current partition is greater than the threshold value of the pollutant content of the current partition, an alarm signal is sent. It can not only realize early warning of the river partition with the confluence, but also realize timely warning of all river partitions. If no situation requiring an alarm signal is found in this step, proceed to the next step. If there is no predicted pollutant content in the partition, skip this step and proceed directly to the next step.

[0026] S5. Compare the actual pollutant content in the partition with the intersection with the predicted pollutant content in the current partition. When the actual pollutant content in the current partition is greater than the predicted pollutant content in the current partition, an alarm signal is issued. That is, the actual pollutant content in the current partition with the intersection should be equal to the predicted pollutant content in the current partition. The current actual pollutant content is greater than the predicted pollutant content in the current partition, indicating that there are other new pollution sources in the current partition, and the staff is required to judge the nature of the new pollution source, so an alarm signal is issued. If the staff finds that it is a temporary pollution source after inspection, it can be dealt with in time. If the staff determines that the new pollution source is a continuous pollution source, the degree of pollution of the new pollution source is judged. If the new pollution source causes the pollutant content in the current partition to exceed the set pollutant content threshold, the new pollution source should be strictly controlled; if the new pollution source only slightly increases the pollutant content and does not require special treatment, the predicted pollutant content of the current partition is corrected, and the corrected complete mixing model of pollutants in the current partition is , where For the pollutant content that is judged to have no impact on the current partition, that is, the content of the newly added pollutants is added to the predicted pollutant content to establish a new predicted pollutant content exclusive to the current partition. The content of the newly added pollutants can be directly obtained by subtracting the predicted pollutant content from the actual pollutant content of the current partition, or the staff can measure the specific pollutant content of the newly added pollution source. When the actual pollutant content of the current partition does not exceed the predicted pollutant content, proceed to the next step. The partition without predicted pollutant content skips this step and proceeds directly to the next step.

[0027] S6. record the changes of actual data of each sub-district. When the actual data changes, there is a predicted pollutant content of a subsequent sub-district that exceeds the threshold value. Mark the sub-district where the actual data changes and send out an alarm signal. Since the pollutant content is constantly accumulated in the process of continuous confluence of each sub-district, when the pollutant content of a sub-district increases, after multiple confluences of several sub-districts, the pollutant content in the river of a sub-district is exceeded. Therefore, the actual data in each sub-district should be recorded. When the actual data of a sub-district changes and the predicted pollutant content of a subsequent sub-district exceeds the pollutant content threshold, the sub-district where the actual data changes is marked and an alarm signal is sent out for processing by the staff, and the actual data of each sub-district recorded that changes are presented to the staff as a reference for subsequent processing. The actual data recorded in this step include river flow and pollutant content. When the pollutant content remains unchanged, the increase in river flow will also cause the pollutant content of the downstream, i.e., the next sub-district, to increase. When no abnormal situation that needs to send out an alarm signal is found in this step, return to re-execute step S2 for continuous monitoring.

[0028] On the basis of the above implementation scheme, the processors, modules, corresponding control programs, algorithm programs and other supporting technologies mentioned in the present invention can be implemented in combination with existing electrical technology, information technology, software technology and general protocols. They are not within the scope of protection required by the present invention and will not be described in detail in this application.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered as exemplary and non-restrictive in all respects.

Claims

1. A method for automatic detection and early warning of safe operation of water environment, characterized in that: Includes steps: S1. Divide the rivers in the monitoring area into different zones, take the river confluence as the dividing point of the zones and number the zones. The river confluence belongs to the next zone, set a monitoring module at the end of the river in each zone, and execute the next step; S2. The monitoring module monitors and collects the actual data of each upstream partition in real time, including river flow and pollutant content, and executes the next step; S3. Establish a complete pollutant mixing model based on the actual data obtained in real time in step S2, obtain the predicted pollutant content of the next partition river, and execute the next step; S4. Set a threshold value of pollutant content in each partition, compare the predicted pollutant content in the partition with the intersection with the threshold value, and issue an alarm signal when the predicted pollutant content is greater than the threshold value, otherwise execute the next step; S5. The actual pollutant content in the partition having the intersection is compared with the predicted pollutant content in the current partition. When the actual pollutant content in the current partition is greater than the predicted pollutant content in the current partition, an alarm signal is issued, otherwise the next step is executed; S6. Record the changes in the actual data of each partition. When the predicted pollutant content of a subsequent partition exceeds the threshold after the actual data changes, mark the partition where the actual data changes and send an alarm signal, and then execute step S2.

2. The method for automatic detection and early warning of safe operation of water environment according to claim 1 is characterized in that: The pollutant complete mixing model expression established in step S3 is: , where P is the predicted pollutant content of the next partition, is the flow of the first river that flows into the next subdivision, is the pollutant content of the first river that flows into the next sub-district, is the flow of the second river that flows into the next subdivision, is the pollutant content of the second river that flows into the next sub-district, is the flow of the nth river flowing into the next partition, is the pollutant content of the nth river flowing into the next partition, where n is a natural number greater than or equal to 2.

3. The method for automatic detection and early warning of safe operation of water environment according to claim 2 is characterized in that: In step S5, when the actual pollutant content of the current partition is greater than the predicted pollutant content of the current partition and is manually determined to have no impact, the pollutant complete mixing model of the current partition is modified to , where The pollutant content that is judged to have no impact in the current partition.

4. The method for automatic detection and early warning of safe operation of water environment according to claim 1 is characterized in that: The pollutant content is the persistent pollutant content.

5. The method for automatic detection and early warning of safe operation of water environment according to claim 1 is characterized in that: After the threshold value of the pollutant content in each partition is set in step S4, an alarm signal is issued when the actual pollutant content in the current partition exceeds the threshold value.

6. An automatic detection and early warning system for safe operation of water environment, executing any method according to claims 1-5, characterized in that: It includes a processing core, a storage module, and a monitoring module. The monitoring module includes a river flow monitoring module and a pollutant content monitoring module. The storage module is used to store the actual data obtained by the monitoring module.

7. The water environment safe operation automatic early warning system according to claim 6, characterized in that: The river flow monitoring module includes a Doppler ultrasonic flowmeter, and the pollutant content monitoring module is a water quality detector for monitoring persistent pollutants.

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