Flowing water body water quality monitoring and early warning system and early warning method thereof

Abstract

The application provides a kind of flowing water body water quality monitoring and early warning system, including multiple monitoring units along the flow direction of flowing water body distribution and remote monitoring unit communication connection with detection unit;The monitoring unit includes sensor module, water quality sampling unit and control transmission unit;The water quality sampling unit includes water pump and sampling device, the water pump extracts water sample from the measured flowing water body and outputs to sampling device, the sensor module is set to sampling device and detects water sample, the output end of the sensor module is connected to control transmission unit, the control transmission unit is communication connection with remote monitoring unit, and the control transmission unit controls water pump work;It can reduce the influence of flow rate on monitoring result when monitoring the water quality parameter of flowing water body, so as to ensure the accuracy of final monitoring result, and can realize certain protection for sensor probe, ensure the stability of the whole system, and can provide accurate data support for water pollution traceability.

Description

Technical Field

[0001] This invention relates to the field of water quality monitoring, and in particular to a water quality monitoring and early warning system for flowing water bodies and its early warning method. Background Technology

[0002] In existing technologies, river water quality monitoring is generally carried out manually. This involves technicians taking samples of the river water regularly or irregularly, and then analyzing them in a laboratory to obtain the corresponding data. This method suffers from low data continuity and low efficiency. Since this testing method is similar to random sampling, omissions are possible. More importantly, after the sampled water is taken to the laboratory for analysis, it is easy to cause secondary pollution to the sampled water due to interference from storage and transportation, resulting in a large deviation from the actual collected samples and low accuracy.

[0003] Gradually, people have proposed some Internet of Things (IoT) based online monitoring systems, which monitor water quality parameters of the water body through various sensors and then upload the data. However, these systems still have the following drawbacks:

[0004] If the sensors are placed directly in the water, the flow rate will severely affect the sensor readings. Furthermore, the presence of sediment in the water can also significantly impact subsequent measurements if it adheres to the sensor probes. If the water is allowed to settle before measurement, the water quality may change during the settling period, leading to inaccurate results.

[0005] Therefore, in order to solve the above-mentioned technical problems, it is urgent to propose a new technical approach. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to provide a water quality monitoring and early warning system and method for flowing water bodies, which can reduce the influence of flow velocity on the monitoring results when monitoring water quality parameters of flowing water bodies, thereby ensuring the accuracy of the final monitoring results. It can also provide certain protection for the sensor probe, ensure the stability of the entire system, and provide accurate data support for tracing the source of water pollution.

[0007] The present invention provides a water quality monitoring and early warning system for flowing water bodies, comprising multiple monitoring units distributed along the flow direction of the flowing water body and a remote monitoring unit that is communicatively connected to the monitoring units;

[0008] The monitoring unit includes a sensor module, a water quality sampling unit, and a control and transmission unit.

[0009] The water quality sampling unit includes a water pump and a sampling device. The water pump extracts water samples from the flowing water body to be tested and outputs them to the sampling device. The sensor module is installed in the sampling device and detects the water samples. The output terminal of the sensor module is connected to the control and transmission unit. The control and transmission unit is communicatively connected to the remote monitoring unit and controls the operation of the water pump.

[0010] Furthermore, the sampling device includes a sampling box and a sampling tube assembly;

[0011] The sampling box is provided with an upper partition and a lower partition, which divide the sampling box into an upper chamber, a middle chamber and a lower chamber. The upper sampling partition and the lower sampling partition are inclined.

[0012] The top of the upper chamber is provided with a water inlet, which is connected to the output end of the water pump;

[0013] The upper partition is provided with a first water outlet pipe, which is vertically arranged and passes through the upper partition. The inlet of the first water outlet pipe is higher than the surface of the upper partition.

[0014] The lower partition is provided with a second water outlet pipe, which is vertically installed and passes through the lower partition. The inlet of the second water outlet pipe is higher than the surface of the lower partition.

[0015] The output port of the second water outlet pipe is connected to the input end of the sampling pipe assembly;

[0016] The sampling tube assembly is located in the lower chamber.

[0017] Furthermore, the sampling tube assembly includes a diversion tube and multiple spiral tubes, wherein the diversion tube is horizontally arranged and its inlet is connected to the outlet of the second outlet tube;

[0018] The spiral tube includes a spiral section and a straight section. One end of the spiral section is connected to a branch pipe, and the other end of the spiral section is connected to one end of the straight section. The other end of the straight section extends out of the lower chamber. The spiral section of the spiral tube is inclined.

[0019] Furthermore, the sensor module includes a pH sensor, a conductivity sensor, an ORP sensor, a TOC sensor, a sulfide sensor, a nitrogen oxide sensor, and a microbial sensor; the number of sensors in the sensor module corresponds one-to-one with the number of helical tubes, and each sensor is located in the helical section of the helical tube.

[0020] Furthermore, the control transmission unit includes a controller, a memory, and a GPS positioning circuit;

[0021] The controller is connected to the memory and GPS positioning circuit. The input terminal of the controller is connected to the output terminal of the sensor module. The control output terminal of the controller is connected to the control input terminal of the water pump. The controller is communicatively connected to the remote monitoring unit.

[0022] Furthermore, the remote monitoring center includes a monitoring server, a storage server, input / output devices, and early warning devices;

[0023] The monitoring server and the control transmission unit are connected via a wireless transmission module. The monitoring server is also connected to the storage server and to input / output devices and early warning devices.

[0024] Accordingly, the present invention also provides a method for monitoring and early warning of water quality in flowing water bodies based on the above system, comprising the following steps:

[0025] S1. Arrange monitoring units along the flowing water body being measured;

[0026] S2. Obtain the distribution information of enterprises within a set distance range of the location of the monitoring unit;

[0027] S3. Control the monitoring unit to work, acquire water quality parameters in the tested water body, and determine whether there are any abnormalities in the water quality parameters;

[0028] S4. When water quality parameters are abnormal, the remote monitoring unit will issue an early warning and display the location of the water quality abnormality and the abnormal water quality parameters.

[0029] Furthermore, in step S2, the distribution information of enterprises includes the composition information of pollutants in the daily wastewater of residents and enterprises.

[0030] The beneficial effects of this invention are as follows: This invention can reduce the influence of flow velocity on the monitoring results when monitoring water quality parameters of flowing water, thereby ensuring the accuracy of the final monitoring results. It can also provide certain protection for the sensor probe, ensuring the stability of the entire system, and can provide accurate data support for tracing the source of water pollution. Attached Figure Description

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0032] Figure 1 This is a schematic diagram of the structure of the present invention.

[0033] Figure 2 This is a schematic diagram of the electrical structure of the system of the present invention. Detailed Implementation

[0034] The present invention will be further described in detail below:

[0035] The present invention provides a water quality monitoring and early warning system for flowing water bodies, comprising multiple monitoring units distributed along the flow direction of the flowing water body and a remote monitoring unit that is communicatively connected to the monitoring units;

[0036] The monitoring unit includes a sensor module, a water quality sampling unit, and a control and transmission unit.

[0037] The water quality sampling unit includes a water pump and a sampling device. The water pump extracts water samples from the flowing water body being measured and outputs them to the sampling device. The sensor module is installed in the sampling device and detects the water samples. The output end of the sensor module is connected to a control and transmission unit, which is communicatively connected to a remote monitoring unit. The control and transmission unit controls the operation of the water pump. The water pump's inlet is located in the water body and requires protection, such as by installing a filter, to prevent large foreign objects from entering the pump and damaging it. This structure reduces the impact of flow velocity on the monitoring results when monitoring water quality parameters of flowing water bodies, thus ensuring the accuracy of the final monitoring results. It also provides protection for the sensor probe, ensuring the stability of the entire system and providing accurate data support for tracing the source of water pollution. The flowing water body refers to rivers, streams, and other flowing water bodies.

[0038] In this embodiment, the sampling device includes a sampling box 1 and a sampling tube assembly;

[0039] The sampling box is provided with an upper partition 16 and a lower partition 7, which divide the sampling box into an upper chamber 17, a middle chamber 15 and a lower chamber 18. The upper sampling partition and the lower sampling partition are inclined.

[0040] The upper chamber is provided with a water inlet 2 at its top, and the water inlet 2 is connected to the output end of the water pump; wherein, the water inlet is located at the inclined upper end of the upper partition, such as... Figure 1 As shown, the upper partition is inclined from left to right, so the left side is the upper end of the upper partition;

[0041] The upper partition is provided with a first water outlet pipe 4, which is vertically arranged and passes through the upper partition. The inlet 3 of the first water outlet pipe 4 is higher than the surface of the upper partition. The first water outlet pipe is arranged corresponding to the upper end of the lower partition, which is explained in the same way as the upper end of the upper partition.

[0042] The lower partition is provided with a second water outlet pipe 13, which is vertically arranged and passes through the lower partition. The inlet 14 of the second water outlet pipe is higher than the surface of the lower partition.

[0043] The output port of the second water outlet pipe is connected to the input end of the sampling pipe assembly;

[0044] The sampling tube assembly is located in the lower chamber. Through the above structure, the water can be settled twice due to the action of the upper and lower chambers, thereby reducing the possibility of silt in the water coming into contact with the sensor module. Moreover, drain outlets (5, 12) are provided in both the upper and middle chambers. The drain outlets are also inclined, and the inclination angle is exactly the same as the inclination angle of the upper and lower partitions, which facilitates the removal of silt and makes it easy to clean the upper and middle chambers. Drain pipes (11, 6) are provided in both the upper and lower chambers. The drain pipes are also inclined. An electric control valve is provided in the drain pipe. When monitoring is required, the controller controls the electric control valve to close, allowing water to be stored and settled. When the monitoring is completed, the electric control valve opens, discharging the water from the upper and middle chambers.

[0045] In this embodiment, the sampling tube assembly includes a diversion tube 10 and a plurality of spiral tubes. The diversion tube 10 is horizontally arranged and its inlet is connected to the outlet 14 of the second outlet tube 13.

[0046] The spiral tube includes a spiral section 9 and a straight section 8. One end of the spiral section is connected to a diversion pipe, and the other end of the spiral section is connected to one end of the straight section. The other end of the straight section extends out of the lower chamber. The spiral section of the spiral tube is inclined. Through the above structure, the inclined spiral tube can slow down the flow velocity of the water, thereby reducing the impact of the flow velocity on the measurement accuracy of the sensor. The optimal inclination angle of the spiral tube is 30°-40° with the horizontal direction, and the curvature of the spiral section should be as large as possible while still accommodating the sensor.

[0047] In this embodiment, the sensor module includes a pH sensor, a conductivity sensor, an ORP sensor, a TOC sensor, a sulfide sensor, a nitrogen oxide sensor, and a microbial sensor. The number of sensors in the sensor module corresponds one-to-one with the number of spiral tubes, and each sensor is located on a spiral segment of the spiral tube. That is, only one sensor is set on each spiral segment of the spiral tube, thereby avoiding mutual interference between sensors.

[0048] In this embodiment, the control transmission unit includes a controller, a memory, and a GPS positioning circuit;

[0049] The controller is connected to a memory and a GPS positioning circuit. The input terminal of the controller is connected to the output terminal of the sensor module, and the control output terminal of the controller is connected to the control input terminal of the water pump. The controller is communicatively connected to a remote monitoring unit. The controller uses an existing microcontroller, and the GPS positioning circuit can accurately determine the current location of the monitoring unit, which is beneficial for reporting abnormal water quality. In addition, the control transmission unit is also equipped with a GPS timing circuit connected to the controller, which can ensure the time synchronization between various monitoring units and facilitate the stable operation of the system.

[0050] In this embodiment, the remote monitoring center includes a monitoring server, a storage server, input / output devices, and an early warning device;

[0051] The monitoring server and the control transmission unit are connected via a wireless transmission module. The monitoring server is also connected to the storage server and to input / output devices and early warning devices. The early warning device is an audible and visual alarm, and the input / output devices are existing touch displays.

[0052] Accordingly, the present invention also provides a method for monitoring and early warning of water quality in flowing water bodies based on the above system, comprising the following steps:

[0053] S1. Arrange monitoring units along the flowing water body being measured;

[0054] S2. Obtain the distribution information of enterprises within a set distance range of the location of the monitoring unit;

[0055] S3. Control the monitoring unit to work, acquire water quality parameters in the tested water body, and determine whether there are any abnormalities in the water quality parameters;

[0056] S4. When water quality parameters are abnormal, the remote monitoring unit will issue an early warning and display the location of the water quality abnormality and the abnormal water quality parameters.

[0057] In step S2, the distribution information of enterprises includes the composition information and discharge information of pollutants in the daily wastewater of residents and enterprises. The composition information is the composition of the wastewater discharged by enterprises, and the discharge information includes the discharge volume and discharge path. The discharge path indicates whether the wastewater of the current enterprise will be discharged into the current river.

[0058] When water quality parameters are abnormal, i.e., when the water quality parameters exceed the set values, indicating pollution, the location information of the current detection unit is obtained, and the enterprises included in the current location are determined based on the location information of the monitoring unit. The distribution information of the current abnormal water quality parameters and enterprises is matched to identify the target enterprises, i.e., the names of the water quality parameters correspond to the emission components and emission paths of the enterprises. These enterprises are then marked as key observation objects, thereby providing accurate data support for subsequent treatment and triggering.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A water quality monitoring and early warning system for flowing water bodies, characterized in that: It includes multiple monitoring units distributed along the flow direction of the water body, as well as a remote monitoring unit that communicates with the detection units; The monitoring unit includes a sensor module, a water quality sampling unit, and a control and transmission unit. The water quality sampling unit includes a water pump and a sampling device for settling and reducing flow velocity. The water pump extracts water samples from the flowing water body being tested and outputs them to the sampling device. The sensor module is installed in the sampling device and detects the water samples. The output end of the sensor module is connected to the control and transmission unit. The control and transmission unit is communicatively connected to the remote monitoring unit and controls the operation of the water pump. The sampling device includes a sampling box and a sampling tube assembly; The sampling box is provided with an upper partition and a lower partition, which divide the sampling box into an upper chamber, a middle chamber and a lower chamber. The upper partition and the lower partition are inclined. The top of the upper chamber is provided with a water inlet and the water inlet is connected to the output end of the water pump. The water inlet is located at the inclined upper end of the upper partition. The upper partition is provided with a first water outlet pipe, which is vertically arranged and passes through the upper partition. The inlet of the first water outlet pipe is higher than the surface of the upper partition and is arranged corresponding to the upper end of the lower partition. The lower partition is provided with a second water outlet pipe, which is vertically installed and passes through the lower partition. The inlet of the second water outlet pipe is higher than the surface of the lower partition. The output port of the second water outlet pipe is connected to the input end of the sampling pipe assembly; The sampling tube assembly is disposed in the lower chamber; The sampling tube assembly includes a diversion tube and multiple spiral tubes. The diversion tube is horizontally arranged and its inlet is connected to the outlet of the second outlet tube. The spiral tube includes a spiral section and a straight section. One end of the spiral section is connected to a branch pipe, and the other end of the spiral section is connected to one end of the straight section. The other end of the straight section extends out of the lower chamber. The spiral section of the spiral tube is inclined. The inclination angle of the spiral tube is 30°-40° with respect to the horizontal direction.

2. The water quality monitoring and early warning system for flowing water bodies according to claim 1, characterized in that: The sensor module includes a pH sensor, a conductivity sensor, an ORP sensor, a TOC sensor, a sulfide sensor, a nitrogen oxide sensor, and a microbial sensor; the number of sensors in the sensor module corresponds one-to-one with the number of helical tubes, and each sensor is located in the helical section of the helical tube.

3. The water quality monitoring and early warning system for flowing water bodies according to claim 1, characterized in that: The control transmission unit includes a controller, a memory, and a GPS positioning circuit. The controller is connected to the memory and GPS positioning circuit. The input terminal of the controller is connected to the output terminal of the sensor module. The control output terminal of the controller is connected to the control input terminal of the water pump. The controller is communicatively connected to the remote monitoring unit.

4. The water quality monitoring and early warning system for flowing water bodies according to claim 1, characterized in that: The remote monitoring unit includes a monitoring server, a storage server, input / output devices, and an early warning device; The monitoring server and the control transmission unit are connected via a wireless transmission module. The monitoring server is also connected to the storage server and to input / output devices and early warning devices.

5. A method for monitoring and early warning of water quality in flowing water bodies based on the system described in any one of claims 1-4, characterized in that: Includes the following steps: S1. Arrange monitoring units along the flowing water body being measured; S2. Obtain the distribution information of enterprises within a set distance range of the location of the monitoring unit; S3. Control the monitoring unit to work, acquire water quality parameters in the tested water body, and determine whether there are any abnormalities in the water quality parameters; S4. When water quality parameters are abnormal, the remote monitoring unit will issue an early warning and display the location of the water quality abnormality and the abnormal water quality parameters.

6. The method for monitoring and early warning of water quality in flowing water bodies according to claim 5, characterized in that: In step S2, the distribution information of enterprises includes the composition information of pollutants in the daily wastewater of residents and enterprises.

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