CN113324594A - System and method for monitoring water level and flow of urban drainage pipe network - Google Patents

System and method for monitoring water level and flow of urban drainage pipe network Download PDF

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Publication number
CN113324594A
CN113324594A CN202110525035.7A CN202110525035A CN113324594A CN 113324594 A CN113324594 A CN 113324594A CN 202110525035 A CN202110525035 A CN 202110525035A CN 113324594 A CN113324594 A CN 113324594A
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China
Prior art keywords
flow
monitoring
water level
drainage pipe
pipe network
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CN202110525035.7A
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Chinese (zh)
Inventor
常应祥
马荣昌
胡彦彬
饶卓
彭军
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Hunan Jinlong Zhicheng Science And Technology Co ltd
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Hunan Jinlong Zhicheng Science And Technology Co ltd
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Priority to CN202110525035.7A priority Critical patent/CN113324594A/en
Publication of CN113324594A publication Critical patent/CN113324594A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm

Abstract

The invention provides a system and a method for monitoring water level and flow of a municipal drainage pipe network, wherein the system comprises a monitoring terminal for monitoring water area information, a telemetering communication terminal in communication connection with the monitoring terminal, a communication unit in communication connection with the telemetering communication terminal, a database server in communication connection with the communication unit, a system display platform in communication connection with the database server, and power supply equipment connected with the telemetering communication terminal. Compared with the prior art, the system and the method for monitoring the water level and the flow of the urban drainage pipe network have the advantages of strong adaptability, high accuracy, low time delay, simple installation and automatic early warning.

Description

System and method for monitoring water level and flow of urban drainage pipe network
Technical Field
The invention relates to the technical field of water body monitoring, in particular to a system and a method for monitoring water level and flow of a municipal drainage pipe network.
Background
The water level and flow monitoring is an important monitoring index for water bodies such as rivers, reservoirs and the like, and has important significance. In the prior art, the conventional water level and flow monitoring method comprises three methods of sensor monitoring, water level gauge manual monitoring and Parshall tank measurement. The sensor monitors analog quantity capable of automatically collecting and representing water level and flow, and then converts the analog quantity into water level and flow data through a certain circuit and algorithm.
According to the difference of the collected analog quantity, the water level and flow sensors can be divided into a float type sensor, a pressure type sensor, an ultrasonic type sensor and other various forms. The float type water level meter is cheap and has strong applicability, but when measuring the water level, a water level meter room is separately built, and the cost of the room even exceeds the cost of the water level sensor. In addition, the pressure sensor is greatly influenced by the change of water quality, and a calibration coefficient needs to be checked and adjusted frequently, so that the difficulty is brought to the operation and maintenance; the ultrasonic water level sensor is arranged above the open channel, so that the external interference is large, and the phenomenon of measuring water level drift often occurs. On the other hand, the manual monitoring mode is time-consuming and labor-consuming, and the Parshall tank needs to modify and shape the channel, which obviously does not conform to the field environment of most drainage pipe networks and can not adapt to the intelligent and automatic requirements of water level monitoring. The water level monitoring method in the prior art has the problems of backward monitoring means, higher monitoring cost, inaccurate monitoring data and the like, and is not beneficial to the further development of water level and flow monitoring work.
Therefore, there is a need to provide a new water level and flow monitoring system and method for municipal drainage pipe network to overcome the above-mentioned drawbacks.
Disclosure of Invention
The invention aims to provide a novel system and a method for monitoring the water level and the flow of a municipal drainage pipe network, which have the advantages of strong adaptability, high accuracy, low time delay, simple installation and automatic early warning.
In order to achieve the purpose, the invention provides a water level and flow monitoring system applied to a municipal drainage pipe network, which comprises a monitoring terminal for monitoring water area information, a telemetering communication terminal in communication connection with the monitoring terminal, a communication unit in communication connection with the telemetering communication terminal, a database server in communication connection with the communication unit, a system display platform in communication connection with the database server, and a power supply device connected with the telemetering communication terminal.
The invention also provides a method for monitoring the water level and the flow of the municipal drainage pipe network, which is applied to the system for monitoring the water level and the flow of the municipal drainage pipe network and comprises the following steps:
installing a monitoring terminal in a water flow area to be detected;
the monitoring terminal is in communication connection with the telemetering communication terminal, the type of the drainage pipe network and the calculated cross-sectional area are carried out through the telemetering communication terminal, then flow calculation is carried out according to a flow calculation formula, and the result is sent to a system display platform;
the system display platform sets a threshold range to facilitate automatic alarm.
Compared with the related technology, the invention has the advantages of simple installation, stable performance and no interference in long-time work; the installation environment is not limited and is not limited by commercial power, optical fibers, river width, water quality conditions and riverbed structures; various installation modes are suitable for different monitoring conditions, so that the accuracy and the effectiveness of data are ensured; and (4) setting a threshold value, and giving an early warning on abnormal conditions such as sudden increase or sudden decrease of water level and flow in real time.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts, wherein:
FIG. 1 is an architectural diagram of the present invention for a municipal drainage network water level and flow monitoring system;
FIG. 2 is a flow chart of the method for monitoring water level and flow rate of a municipal drainage pipe network according to the present invention;
FIG. 3 is a polygonal segmentation chart for the method for monitoring the water level and flow of the municipal drainage pipe network.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the water level and flow monitoring system for the municipal drainage pipe network according to the present invention includes a monitoring terminal 1 for monitoring water area information, a telemetry communication terminal 2 in communication with the monitoring terminal 1, a communication unit 3 in communication with the telemetry communication terminal 2, a database server 4 in communication with the communication unit 3, a system display platform 5 in communication with the database server 4, and a power supply device 6 connected to the telemetry communication terminal 2.
The monitoring terminal 1 comprises at least one of a Doppler ultrasonic flow meter, a water level sensor, a COD sensor, an ammonia nitrogen sensor and a video monitor.
The system display platform 5 comprises a mobile terminal and a PC terminal, and further comprises a data display function module, a historical record query function module, a threshold setting function module, an early warning alarm function module, a comparison analysis and screening function module, a chart display function module and an expandable module.
The communication unit 3 comprises an NB-IoT, GPRS or wired fiber optic communication module.
The power supply equipment 6 supplies power to the monitoring terminal and the telemetering communication terminal through the solar storage battery, normal operation of the equipment is guaranteed for more than 30 days, the photovoltaic solar panel can be installed to charge the storage battery under the condition permission, and the battery replacement period is prolonged.
Referring to fig. 2, the present invention further provides a method for monitoring water level and flow rate of a municipal drainage pipe network, where the method employs the above-mentioned system for monitoring water level and flow rate of a municipal drainage pipe network, and includes:
s1, installing the monitoring terminal in a water flow area to be detected; the modes of installation in the water flow area to be measured comprise underwater installation, support installation, shaft installation, suspension installation and the like.
And (3) underwater installation: firstly, fixing a probe of a monitoring terminal to the water bottom, directly placing the probe at a position to be installed, and marking the position of a bracket installation hole by using a pen or a screwdriver; secondly, drilling a hole at the marked mounting hole position by using a phi 10 drill bit and a percussion drill, wherein the depth is not less than 10cm (the depth is required to be greater than the length of an expansion screw), then inserting 4 expansion screws with the length of 8mm into the mounting hole, and firmly fixing the Doppler ultrasonic current meter; thirdly, performing pipe penetrating protection on the cable, fixing the wire pipe to the bottom and the side of the channel, routing the wire pipe to the position of the upright stanchion, fixing the underwater wire pipe firmly, preventing any cable from being exposed in water, performing pipe penetrating protection according to the routing schematic diagram, protecting the wire pipe by adopting a stainless steel horseback (pipe clamp), fixing the wire pipe by using a phi 6 plastic expansion screw, and drilling a hole at the installation position by using a 6mm drill bit; and fourthly, all the connecting wires penetrate out through the hollow stainless steel pipe or the PVC pipe and are connected to a power supply and a telemetering communication terminal on the shore or in the waterproof box, so that data interaction is realized.
During installation, attention is paid to power-off wiring, whether wiring is correct or not is checked before power is on, the probe of the monitoring terminal and the corrugated pipe are required to be firmly fixed underwater to prevent the monitoring terminal from being damaged by falling off due to water impact, and the galvanized steel pipe of the monitoring terminal support and the shore are required to be firmly fixed to prevent the monitoring terminal support from being finally damaged due to water impact. The cable poling is walked and is not asked fifty percent discount cable, guarantees that the radian when turning does not need the undersize, prevents to plug up inside trachea after the fifty percent discount, leads to pressure sensor data to take place the skew. And (3) in an installation environment with relatively rapid water flow (more than 0.8m/s), please reinforce the bracket.
Mounting a bracket: firstly, fixing a steel plate and square steel (the square steel and a galvanized steel pipe need to be welded in advance), and connecting and fixing a fixing plate and the square steel by using 4M 8 × 4 stainless steel screws and nuts; secondly, sleeving a cable of the monitoring terminal into a corrugated pipe with the length of 20cm, penetrating the cable into the corrugated pipe from square steel, penetrating the cable out of the other end of the galvanized steel pipe, and fixing the monitoring terminal on a steel plate by using 4M 8-4 stainless steel screw nuts; fixing the galvanized steel pipe, fixing the galvanized steel pipe by using an M40 stainless steel pipe clamp and a phi 6mm expansion screw, fixing at least more than 4 pipe clamps, and reinforcing the bracket and fixing more pipe clamps when the flow speed is high; the fourth step, carry out the poling protection with the cable to with the fixed canal limit of spool, walk the line toward pole setting position, the spool adopts stainless steel to ride horse card (pipe strap) and protects, uses phi 6's plastics expansion screw to fix, need use the 6mm drill bit to drill at the mounted position, can carry out pre-buried line of walking on the bank, inserts power and telemetering measurement communication terminal in bank or the waterproof box, realizes data interaction.
And (3) shaft installation: firstly, sleeving a section of corrugated pipe with the length of about 30cm on a cable sleeve of a monitoring terminal to protect a tail cable, and fixing a probe of a current meter to a steel plate by using 4M 8 stainless steel screws and nuts; secondly, penetrating a cable into the galvanized steel pipe, splicing and screwing the galvanized steel pipe one section by one section (splicing according to the required length), making a mark on the top of the steel pipe, pointing to the orientation of the current meter, and preventing the orientation of the current meter from being unable to be confirmed after installation; thirdly, adjusting the installation direction, enabling a ribbon (a probe of a current meter) to face the central position of an upstream horizontal well, using a percussion drill to match a drill bit with the diameter of 10mm to open a hole on a vertical shaft or a box culvert (a vertical line of the installation position of the steel pipe), and fixing by using at least more than 3 stainless steel expansion elevators according to the field conditions (more stainless steel expansion elevators are needed under the conditions of ensuring firm installation and high current speed); the fourth step, carry out the poling protection with the cable to with the fixed canal limit of spool, walk the line toward pole setting position, the spool adopts stainless steel to ride horse card (pipe strap) and protects, uses phi 6's plastics expansion screw to fix, need use the 6mm drill bit to drill at the mounted position, can carry out pre-buried line of walking on the bank, inserts power and telemetering measurement communication terminal in bank or the waterproof box, realizes data interaction.
Suspension installation: firstly, fixing a monitoring terminal probe at the bottom of a floating ball towards the direction of water flow, fixing a wiring and a wire pipe on the shore, and testing in water, wherein the normal communication of the equipment is good in waterproof tightness; secondly, erecting a pile on a bank or a fixed base plane, wherein the depth is more than or equal to 30cm, penetrating a steel wire rope through a suspension ball fixed position to be connected with an opposite pile position, and reinforcing, wherein the traction force of the steel wire rope is more than or equal to 1 t; thirdly, adjusting the tightness degree of the steel wire rope to enable the steel wire rope to bear the historical maximum flow velocity impact and prevent the steel wire rope from suspending in the air in the case of dry water; and fourthly, the cable is fixed in the shoreside equipment box through the threading pipe, the preformed hole is wrapped by the rubber ring, the cable insulation skin is prevented from being damaged due to abrasion, and meanwhile, the power supply and the remote measurement communication terminal in the shoreside or the waterproof box are connected to realize data interaction.
S2, the monitoring terminal is in communication connection with the telemetering communication terminal device, the type of the drainage pipe network and the cross-sectional area are calculated through the telemetering communication terminal device, flow calculation is carried out according to a flow calculation formula, and the result is sent to a system display platform;
the flow calculation formula is as follows:
Q=S*V*a
wherein S represents the current flow area; v represents the current instantaneous flow rate; a represents a coefficient and takes the value of 1. If the channel is silted up, the area of the silted up part needs to be calculated separately and subtracted in the final flow area, if the current meter is not installed at the lowest place, the water depth needs to compensate the installation height of the current meter. The core of the algorithm lies in the calculation of the flow area, channels of different shapes are calculated in different modes, but the calculation is carried out through water depth and section data, and the specific calculation mode is as follows (only rectangular, trapezoidal and circular tubes are made, irregular examples are provided, and other U-shaped and triangular calculation modes are similar and mainly are area calculation formulas).
The flow area comprises the cross-sectional area of a box culvert, the cross-sectional area of a pipeline or the cross-sectional area of a ditch.
The calculation of the cross-sectional area of the box culvert comprises the following steps:
when the box culvert is rectangular, the flow area is S ═ W × SH, W represents the channel width, and SH represents the water depth;
when the box culvert is trapezoidal, firstly calculating the water surface width WL (W2 + (W1-W2) SH/H; then, the trapezoidal area (narrow bottom + wide bottom) high/2 is calculated, and finally, the area S is calculated as (WL + W2) SH/2, W1 indicates the wide bottom of the trapezoid, W2 indicates the narrow bottom of the trapezoid, and H indicates the height of the trapezoid.
The calculation of the cross-sectional area of the pipeline comprises the following steps:
filling the pipe: s ═ pi (D/2) × (D/2);
half pipe: s ═ pi (D/2) × (D/2)/2;
less than half a tube: i.e. when the water level h < D/2, S ═ theta-sin theta cos theta) r2Wet cycle ρ is 2 θ r;
greater than half a tube: i.e. water level h > D/2, S ═ r (pi-theta + sin theta cos theta) r2Wet cycle ρ ═ 2(pi- θ) r;
where D is the pipe diameter, pi is the circumference ratio, and θ is the plane angle.
The channel section area calculation is carried out by adopting a segmentation method and comprises the following steps:
the channel belongs to an irregular pipeline, the cross section of a riverbed needs to be calculated, and the cross section of the riverbed and the water surface form a closed polygon; dividing any polygon into N triangles, dividing a closed polygon into a plurality of triangles, and calculating the area of each triangle; and accumulating the areas of the plurality of triangles to obtain the area of the cross section of the trench.
For example, given the vertex coordinates (order) of a polygon (a, B, C, D, E, F, S) to determine the area of the polygon, the first step is to divide the given polygon into a plurality of triangles, then determine the areas of the triangles, and finally add up the areas, so that the polygon can be divided into triangles in various ways, where we divide the polygon according to the method of fig. 3, and the area of the irregular polygon is:
s (a, B, C, D, E, F, S) ═ S Δ (a, B, S) + S Δ (B, C, S) + S Δ (C, D, S) + S Δ (D, E, S) + S Δ (E, F, S), the same applies to convex polygons.
And S3, setting a threshold range by the system display platform so as to facilitate automatic alarm.
Performing warehousing operation on data acquired by a front-end data acquisition terminal; configuring and classifying effective information, such as water level defined as 'SW', flow rate defined as 'LS', flow rate defined as 'LL' and the like; setting upper and lower threshold constraints, manually judging threshold limit setting, respectively setting upper and lower threshold values for SW, LS and LL, and judging the collected data; utilizing computer code to make code automatic judgement; when the SW is lower than a set lower limit threshold or higher than an upper limit threshold, automatically pushing alarm information to a background; when LS is lower than a set lower limit threshold or higher than an upper limit threshold, automatically pushing alarm information to a background; when LL is lower than a set lower limit threshold or higher than an upper limit threshold, automatically pushing alarm information to a background; and the alarm information is used for reminding the appointed user in a page pushing or short message reminding mode.
Compared with the related technology, the invention has the advantages of simple installation, stable performance and no interference in long-time work; the installation environment is not limited and is not limited by commercial power, optical fibers, river width, water quality conditions and riverbed structures; various installation modes are suitable for different monitoring conditions, so that the accuracy and the effectiveness of data are ensured; and (4) setting a threshold value, and giving an early warning on abnormal conditions such as sudden increase or sudden decrease of water level and flow in real time.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. The utility model provides a be used for municipal drainage pipe network water level and flow monitoring system, its characterized in that, including the monitor terminal who is used for waters information monitoring, with monitor terminal communication connection's telemetering measurement communication terminal, with telemetering measurement communication terminal communication connection's communication unit, with communication unit communication connection's database server, and with database server communication connection's system display platform, and with the power supply unit that telemetering measurement communication terminal connects.
2. The system for monitoring the water level and flow of the municipal drainage pipe network according to claim 1, wherein said monitoring terminal comprises at least one of a doppler ultrasonic flow meter, a COD sensor, an ammonia nitrogen sensor or a video monitor.
3. The system for monitoring the water level and the flow of the municipal drainage pipe network according to claim 1, wherein the system display platform comprises a data display function module, a history query function module, a threshold setting function module, an early warning and alarming function module, a comparative analysis and screening function module, a chart display function module and an expandable module.
4. The system of claim 1, wherein the communication unit comprises NB-IoT, GPRS or wired fiber optic communication modules.
5. A method for monitoring water level and flow in a municipal drainage network, using the system for monitoring water level and flow in a municipal drainage network according to any one of claims 1 to 4, comprising:
installing a monitoring terminal in a water flow area to be detected;
the monitoring terminal is in communication connection with the telemetering communication terminal, the type of the drainage pipe network and the calculated cross-sectional area are carried out through the telemetering communication terminal, then flow calculation is carried out according to a flow calculation formula, and the result is sent to a system display platform;
the system display platform sets a threshold range to facilitate automatic alarm.
6. The method for monitoring the water level and the flow of the municipal drainage pipe network according to claim 5, wherein the flow calculation formula is as follows:
Q=S*V*a
wherein S represents the current flow area; v represents the current instantaneous flow rate; a represents a coefficient and takes the value of 1.
7. The method for monitoring the water level and the flow of the municipal drainage pipe network according to claim 6, wherein the flow area comprises a box culvert cross-sectional area, a pipeline cross-sectional area or a ditch cross-sectional area.
8. The method for monitoring the water level and the flow of the municipal drainage pipe network according to claim 7, wherein the calculation of the cross-sectional area of the box culvert comprises:
when the box culvert is rectangular, the flow area is S ═ W × SH, W represents the channel width, and SH represents the water depth;
when the box culvert is trapezoidal, firstly calculating the water surface width WL (W2 + (W1-W2) SH/H; then, the trapezoidal area (narrow bottom + wide bottom) high/2 is calculated, and finally, the area S is calculated as (WL + W2) SH/2, W1 indicates the wide bottom of the trapezoid, W2 indicates the narrow bottom of the trapezoid, and H indicates the height of the trapezoid.
9. The method for monitoring the water level and the flow of the municipal drainage pipe network according to claim 7, wherein the calculation of the pipe cross-sectional area comprises:
filling the pipe: s ═ pi (D/2) × (D/2);
half pipe: s ═ pi (D/2) × (D/2)/2;
less than half a tube: i.e. when the water level h < D/2, S ═ theta-sin theta cos theta) r2Wet cycle ρ is 2 θ r;
greater than half a tube: i.e. water level h > D/2, S ═ r (pi-theta + sin theta cos theta) r2Wet cycle ρ ═ 2(pi- θ) r;
where D is the pipe diameter, pi is the circumference ratio, and θ is the plane angle.
10. The method for monitoring the water level and the flow of the municipal drainage pipe network according to claim 7, wherein the calculation of the cross-sectional area of the ditch is performed by a segmentation method comprising:
the channel belongs to an irregular pipeline, the cross section of a riverbed needs to be calculated, and the cross section of the riverbed and the water surface form a closed polygon;
dividing any polygon into N triangles, dividing a closed polygon into a plurality of triangles, and calculating the area of each triangle;
and accumulating the areas of the plurality of triangles to obtain the area of the cross section of the trench.
CN202110525035.7A 2021-05-14 2021-05-14 System and method for monitoring water level and flow of urban drainage pipe network Pending CN113324594A (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005189186A (en) * 2003-12-26 2005-07-14 Yokogawa Denshikiki Co Ltd Flow-measuring device
CN203745870U (en) * 2014-01-20 2014-07-30 湖南云控科技有限公司 Water resource intelligent integrated monitoring system
CN106128038A (en) * 2016-07-04 2016-11-16 安徽天达网络科技有限公司 A kind of urban flood defence water drainage early warning linked system
CN206058478U (en) * 2016-09-23 2017-03-29 安徽赛洋信息科技开发咨询有限公司 A kind of urban flooding online monitoring alarm system
CN207397469U (en) * 2017-06-26 2018-05-22 广州市久元自动化设备有限公司 A kind of water monitoring system
CN108981803A (en) * 2018-07-02 2018-12-11 宁波水表股份有限公司 A kind of water utilities monitoring management system
CN109506631A (en) * 2018-11-15 2019-03-22 湖南长高思瑞自动化有限公司 Hydrologic monitoring system based on Internet of Things
CN111765933A (en) * 2020-06-30 2020-10-13 深圳市宏电技术股份有限公司 Drainage pipe network flow monitoring system and method

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005189186A (en) * 2003-12-26 2005-07-14 Yokogawa Denshikiki Co Ltd Flow-measuring device
CN203745870U (en) * 2014-01-20 2014-07-30 湖南云控科技有限公司 Water resource intelligent integrated monitoring system
CN106128038A (en) * 2016-07-04 2016-11-16 安徽天达网络科技有限公司 A kind of urban flood defence water drainage early warning linked system
CN206058478U (en) * 2016-09-23 2017-03-29 安徽赛洋信息科技开发咨询有限公司 A kind of urban flooding online monitoring alarm system
CN207397469U (en) * 2017-06-26 2018-05-22 广州市久元自动化设备有限公司 A kind of water monitoring system
CN108981803A (en) * 2018-07-02 2018-12-11 宁波水表股份有限公司 A kind of water utilities monitoring management system
CN109506631A (en) * 2018-11-15 2019-03-22 湖南长高思瑞自动化有限公司 Hydrologic monitoring system based on Internet of Things
CN111765933A (en) * 2020-06-30 2020-10-13 深圳市宏电技术股份有限公司 Drainage pipe network flow monitoring system and method

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