CN212363318U - Drainage pipe monitoring devices based on thing networking - Google Patents
Drainage pipe monitoring devices based on thing networking Download PDFInfo
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- CN212363318U CN212363318U CN202021358077.3U CN202021358077U CN212363318U CN 212363318 U CN212363318 U CN 212363318U CN 202021358077 U CN202021358077 U CN 202021358077U CN 212363318 U CN212363318 U CN 212363318U
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Abstract
The utility model provides a drainage pipeline monitoring device based on the Internet of things, which comprises a water level gauge, a first flow meter, a second flow meter and a monitoring unit, wherein the water level gauge is arranged on the inner wall of a rainwater well; the first flowmeter is arranged at the upstream position of a drainage pipeline connected with the catch basin; the second flowmeter is arranged at the downstream position of a drainage pipeline connected with the catch basin; the monitoring unit is arranged in a control box near the rainwater well, is connected with the water level meter, the first flowmeter and the second flowmeter through near field communication, and is connected with the control center through a mobile communication network. The utility model discloses the flow data of the second flowmeter according to first flowmeter can obtain the real-time drainage flow of rainwater well, and control center calculates difference between them promptly for the real-time drainage flow of rainwater well, and it is long when having shortened rainwater well flow calculation, can in time obtain velocity of flow data, under the great condition of water level fluctuation under extreme environment, the flow data of surveying is more accurate.
Description
Technical Field
Embodiments of the present disclosure generally relate to the field of urban drainage monitoring and management systems, and more particularly, to a drainage pipeline monitoring device based on the internet of things.
Background
The catch basin is a necessary structure of a rain/sewage drainage pipe network and is an important facility for facilitating daily inspection, preventing and dredging pipeline blockage.
Generally, a water level meter is arranged at a monitoring point and sends water level information of the rainwater well to a server of a monitoring center, but the water level information of the rainwater well is only collected, the obtained information is single, the actual current drainage condition of the rainwater well and a drainage pipeline connected with the rainwater well cannot be effectively known, in addition, under extreme and severe environments such as strong wind, heavy rain and the like, the water level fluctuation is large, the measured water level is inaccurate, and monitoring personnel cannot judge the accurate drainage quantity of the rainwater well according to the water level data. The change of the drainage speed of the catch basin needs to be obtained through the change of the water level in the section time, and the information is not updated timely, so that the urban drainage clogging treatment is delayed, and the surface water is accumulated.
SUMMERY OF THE UTILITY MODEL
According to the embodiment of the disclosure, a drainage pipe monitoring device based on the Internet of things is provided, and the drainage flow of a rainwater well in real time can be measured.
In a first aspect of the disclosure, a drainage pipeline monitoring device based on the internet of things is provided. This drainage pipe monitoring devices based on thing networking includes: a water level gauge, a first flow meter, a second flow meter, and a monitoring unit, wherein,
the water level meter is arranged on the inner wall of the catch basin;
the first flowmeter is arranged at the upstream position of a drainage pipeline connected with the catch basin;
the second flowmeter is arranged at the downstream position of a drainage pipeline connected with the catch basin;
the monitoring unit is arranged in the control box near the catch basin, so that the damage of the equipment of the monitoring unit caused by water inflow in the catch basin or the drainage pipeline is prevented, or the equipment arranged outside is easy to age and convenient to install; the water level meter, the first flow meter and the second flow meter are connected through near field communication; and is connected with the control center through a mobile communication network. And the monitoring unit receives water level or flow data sent by the water level meter, the first flow meter and the second flow meter through near field communication, or sends a control instruction to the water level meter, the first flow meter and the second flow meter.
The above aspects and any possible implementation manners further provide an implementation manner, wherein the travel switch is arranged below the manhole cover, connected with the monitoring unit, and used for monitoring the position state of the rainwater manhole cover.
The above-described aspects and any possible implementations further provide an implementation, in which the water gauge is an electronic water gauge,
and the electronic water level gauge is electrically connected with a water level gauge communication module and a water level gauge power supply module.
The above aspects and any possible implementations further provide an implementation in which the electronic water level gauge extends from a bottom end of the catch basin inner wall to a top end of the catch basin inner wall, is mounted within a hollow mounting bracket, the mounting bracket being fixed to the catch basin inner wall,
the water level gauge communication module and the water level gauge power supply module are arranged at the top end in the mounting bracket.
The above aspects and any possible implementation manners further provide an implementation manner, where the first flow meter is configured as one or more first doppler ultrasound probes, and a first flow meter communication module and a first flow meter power module are electrically connected to the first doppler ultrasound probes;
the second flowmeter is set to be one or more second Doppler ultrasonic probes, and a second flowmeter communication module and a second flowmeter power module are electrically connected with the second Doppler ultrasonic probes.
The above aspect and any possible implementation manner further provide an implementation manner, where the first flow meter communication module includes a first analog-to-digital converter, and a first signal processor connected to the first analog-to-digital converter, and the first signal processor is connected to the monitoring unit;
the second flowmeter communication module comprises a second analog-to-digital converter and a second signal processor connected with the second analog-to-digital converter, and the second signal processor is connected with the monitoring unit.
The above aspect and any possible implementation further provide an implementation in which the first flow meter communication module and the second flow meter communication module are the same flow meter communication module.
The above aspects and any possible implementation manners further provide an implementation manner, where the first flow meter communication module and the first flow meter power supply module are externally coated with a waterproof coating or are packaged in a waterproof material shell;
and waterproof coatings are coated outside the second flowmeter communication module and the second flowmeter power supply module or are packaged in a waterproof material shell.
The above aspect and any possible implementation manner further provide an implementation manner, in which the control center is configured to calculate a real-time drainage flow rate of a rainwater well according to the data of the first flow meter and the second flow meter received from the monitoring unit, and includes:
the first flowmeter is spaced from the water outlet of the catch basin and is used for measuring the real-time inflow rate of the upstream position of the drainage pipeline;
the second flowmeter is spaced from the water outlet of the catch basin and is used for measuring the real-time drainage flow of the downstream position of the drainage pipeline;
and the control center calculates the real-time drainage flow of the catch basin according to the difference value of the real-time water inlet flow of the first flowmeter and the real-time drainage flow of the second flowmeter.
The above aspect and any possible implementation manner further provide an implementation manner, where the monitoring unit transmits data with the water level meter, the first flow meter, and the second flow meter by using a Zigbee network or bluetooth.
The utility model discloses the flow data of the second flowmeter according to first flowmeter can obtain the real-time drainage flow of catch basin, the real-time inflow flow of the catch basin upper reaches position that first flowmeter records, the real-time drainage flow of the catch basin low reaches position that the second flowmeter records, control center calculates difference between them and is the real-time drainage flow of catch basin, it is long when having shortened the calculation of catch basin flow, can in time obtain velocity of flow data, under the great condition of water level fluctuation under extreme environment, the flow data who surveys are more accurate. And the rainwater well water level information of the water level gauge is integrated, so that the drainage condition of the rainwater well is more comprehensive.
The rainwater well accessory is provided with a monitoring unit which receives data sent by the water level gauge, the first flow meter, the second flow meter and the travel switch, the monitoring unit sends the received data to the control center, and the control center can also send signals to the water level gauge, the first flow meter, the second flow meter and the travel switch through the monitoring unit. The monitoring unit is arranged at one side close to the data source, transmits or receives data to each device nearby, and transmits each item of data with the control center in a centralized manner, so that signal transmission is simpler and quicker.
It should be understood that what is described in this summary section is not intended to limit key or critical features of the embodiments of the disclosure, nor is it intended to limit the scope of the disclosure. Other features of the present disclosure will become apparent from the following description.
Drawings
The above and other features, advantages and aspects of various embodiments of the present disclosure will become more apparent by referring to the following detailed description when taken in conjunction with the accompanying drawings. In the drawings, like or similar reference characters designate like or similar elements, and wherein:
fig. 1 is a schematic connection diagram of a drainage pipeline monitoring device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a drainage pipeline monitoring device according to an embodiment of the present invention;
fig. 3 shows a schematic structural diagram of a water level gauge provided by an embodiment of the present invention;
fig. 4 shows a schematic structural diagram of a first flow meter and a second flow meter according to another embodiment of the present invention.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 4 is:
100 water level meter, 110 water level meter communication module, 120 mounting bracket, 121 supporting plate, 122 outer tube, 123 fixing plate, 124 cover, 130 water level meter power module, 210 first flowmeter, 211 first doppler ultrasonic probe, first flowmeter communication module 212, 2121 first analog-to-digital converter, 2122 first signal processor, 213 first flowmeter power module, 220 second flowmeter, 221 second doppler ultrasonic probe, 2221 second analog-to-digital converter, 2222 second signal processor, 222 second flowmeter communication module, 223 second flowmeter power module, 300 stroke switch, 400 monitoring unit, 500 control center.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are some, but not all embodiments of the present disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
In addition, the term "and/or" herein is only one kind of association relationship describing an associated object, and means that there may be three kinds of relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
The utility model discloses a drainage pipe monitoring devices based on thing networking that embodiment provided is described below with reference to fig. 1-4.
As shown in fig. 1, according to the utility model discloses a drainage pipe monitoring device based on thing networking that embodiment provided, including setting up at water level gauge 100, first flowmeter 210, second flowmeter 220 and the travel switch 300 of monitoring end, the monitoring unit 400 that is connected with water level gauge 100, first flowmeter 210, second flowmeter 220, travel switch 300 electricity, and the control center 500 who is connected with monitoring unit 400.
The water level gauge 100 is disposed on an inner wall of the rainwater well and used for monitoring the depth of accumulated water in the rainwater well. The water gauge 100 is a drop-in type water gauge, a probe of the drop-in type water gauge extends into the lower part of the catch basin, the probe is connected with a water gauge communication module 110 arranged on the upper part of the catch basin through a cable, and the water gauge communication module 110 is a transmitter. The water gauge 100 is installed in a mounting bracket 120, and the mounting bracket 120 extends from the bottom end of the rainwater well to the top end of the rainwater well and is fixed to the inner wall of the rainwater well by expansion screws. The mounting bracket 120 is integrally formed in a pipe shape, a support plate 121 is provided at an upper portion thereof, and an outer pipe 122 is formed at an outer portion of the support plate 121. The support plate 121 is fixed in the outer pipe 122 perpendicular to the axial direction of the outer pipe 122, one end of the support plate 121 close to the inner wall of the rainwater well is connected and fixed with the fixing plate 123, and the fixing plate 123 is perpendicular to the plane of the support plate 121, extends towards the axial direction of the outer pipe 122, and is fixed on the inner wall of the rainwater well. The transmitter is fixed on the support plate 121 so that the transmitter is fixed on the upper portion of the inner wall of the rainwater well through the support plate 121.
The outer pipe 122 of the mounting bracket 120 is penetrated, and the contact wall surface corresponding to the inner wall of the rainwater well is fixed to the inner wall of the rainwater well, and is formed into a curved surface, which is consistent with the radian of the inner wall of the rainwater well, so that the mounting bracket 120 can be fixed to the inner wall of the rainwater well conveniently, and the impact of water flow on the mounting bracket 120 is reduced. A notch matched with the fixing plate 123 is formed on the arc surface of the outer pipe 122, the fixing plate 123 is arranged in the notch and fixed with the inner wall of the rainwater well, and the plane of the fixing plate 123 is consistent with the extension direction of the arc surface. A cover 124 is provided to be openable at one side wall of both sides of the contact wall surface corresponding to the inner wall of the rainwater well. The cover 124 is hinged to the contact wall surface, and the cover 124 rotates towards the inner wall of the rainwater well after being opened, so that the water level gauge 100 can be maintained after the cover 124 is opened by related personnel. The cover 124 is locked and fastened to another wall surface corresponding to the inner wall of the catch well.
The bottom of the mounting bracket 120 is open, a plurality of small holes are formed on the wall surface of the outer pipe 122 below the supporting plate 121 in the extending direction, so that water can conveniently flow into the mounting bracket 120, and the probe and the cable of the drop-in type water level gauge penetrate through and extend into the mounting bracket 120. The mounting bracket 120 is made of steel, PVC or ABS material, has good weather resistance and corrosion resistance, can resist the erosion of rainwater and sewage, and has long service life.
The water level gauge 100 may be an ultrasonic water level gauge, an infrared water level gauge, a radar water level gauge, or the like, which is installed at an upper portion of the rainwater well and fixed to an inner wall of the rainwater well by a support plate 121 of the installation bracket 120.
The water gauge power module 130 adopts a lithium battery or a storage battery to charge the input water gauge and the water gauge communication module 110. The water gauge power module 130 is disposed on the support plate 121, fixed by waterproof bolts, and electrically connected to the drop-in water gauge and the water gauge communication module 110.
The water gauge communication module 110 converts a signal received from a probe of the drop-in water gauge into an electrical signal that can be received by the monitoring unit 400, and transmits the signal to the monitoring unit 400. Position coding is input to the water level gauge 100, the water level gauge communication module 110 sends water level data to the monitoring unit 400 in a near field communication mode and sends position coding data to the monitoring unit 400, and the control center 500 receives and decodes the water level data and the water level gauge position coding data sent from the monitoring unit 400, so that water level information and water level gauge position information of a rainwater well can be obtained.
As shown in fig. 2, a first flowmeter 210 is provided at an upstream position of a drain pipeline connected to a rainwater well, a second flowmeter 220 is provided at a downstream position of the drain pipeline connected to the rainwater well, the first flowmeter 210 is used for measuring an inflow rate at the upstream position of the drain pipeline connected to the rainwater well, and the second flowmeter 220 is used for measuring a drain rate at the downstream position of the drain pipeline connected to the rainwater well.
The first flow meter 210 includes a first doppler ultrasound probe 211, a first flow meter communication module 212, and a first flow meter power supply module 213, where the first flow meter communication module 212, the first flow meter power supply module 213 and the first doppler ultrasound probe 211 are disposed at one side and connected to the first doppler ultrasound probe 211 in a wired or wireless manner. The second flow meter 220 includes a second doppler ultrasound probe 221, a second flow meter communication module 222, and a second flow meter power module 223, where the second flow meter communication module 222, the second flow meter power module 223 and the second doppler ultrasound probe 221 are disposed at one side and connected to the second doppler ultrasound probe 221 in a wired or wireless manner. The first Doppler ultrasonic probe 211, the first flowmeter communication module 212 and the first flowmeter power supply module 213 are positioned at the upstream position of the drainage pipeline, and have a spacing of not less than 30 centimeters from the water outlet of the catch basin. The second Doppler ultrasonic probe 221, the second flowmeter communication module 222 and the second flowmeter power supply module 223 are located at the downstream position of the drainage pipeline, and are spaced from the water outlet of the catch basin by not less than 30 centimeters. The certain distance is set for with the delivery port of rainwater well to the flowmeter, is favorable to improving flow measurement's accuracy, prevents to set up to lead to measuring inaccurate because of rainwater well drainage in to the pipeline when the distance is nearer.
The first flow meter communication module 212 includes a first analog-to-digital converter 2121, and a first signal processor 2122 connected to the first analog-to-digital converter 2121 and disposed at a position closer to the storm water wellhead. The Doppler ultrasonic flow meter is used for measuring the flow rate based on the Doppler effect, the first Doppler ultrasonic probe 211 emits a beam of ultrasonic waves, the ultrasonic waves are transmitted in the fluid, impurities such as bubbles or solid particles can be contained in the drainage pipeline fluid, when the ultrasonic waves contact the impurities in the fluid, the reflected ultrasonic waves can generate Doppler frequency shift, the Doppler frequency shift is in direct proportion to the flow rate, and the flow rate of the fluid can be measured by measuring the Doppler frequency shift. The first doppler ultrasound probe 211 converts the detected flow rate signal into a digital signal through the first analog-to-digital converter 2121, and transmits the digital signal to the first signal processor 2122, and the digital signal is processed by the first signal processor 2122 into a signal that can be received by the monitoring unit 400 and transmitted to the monitoring unit 400 by the first signal processor 2122 through near field communication. The position code is input to the first flow meter 210, the first flow meter communication module 212 sends the position code to the control center 500 through the monitoring unit 400, and the control center 500 decodes the position code to obtain the position information of the first flow meter 210.
The second flow meter communication module 222 includes a second analog-to-digital converter 2221, and a second signal processor 2222 connected to the second analog-to-digital converter, and is disposed at a position closer to the storm water wellhead. Based on the doppler effect, the second doppler ultrasound probe 221 converts the detected flow rate signal into a digital signal through the second analog-to-digital converter 2221, and transmits the digital signal to the second signal processor 2222, the digital signal is processed by the second signal processor 2222 into a signal that can be received by the monitoring unit 400, and the signal is transmitted from the second signal processor 2222 to the monitoring unit 400 by using the near field communication. The position code is input to the second flowmeter 220, the second flowmeter communication module 222 sends the position code to the control center 500 through the monitoring unit 400, and the control center 500 decodes the position code to obtain the position information of the second flowmeter 220.
As shown in fig. 4, in some embodiments, the first flow meter communication module 221 and the second flow meter communication module 222 are the same flow meter communication module, and the first doppler ultrasound probe 211 and the second doppler ultrasound probe transmit signals to the monitoring unit 400 by means of near field communication through the same flow meter communication module. The flow meter communication module is disposed between the first doppler ultrasound probe 211 and the second doppler ultrasound probe 221.
The first flow meter power supply module 213 and the second flow meter power supply module 223 adopt lithium batteries or storage batteries to respectively charge the first doppler ultrasonic probe 211, the first flow meter communication module 212, the second doppler ultrasonic probe 221 and the second flow meter communication module 222, or charge the first doppler ultrasonic probe 211, the second doppler ultrasonic probe 221 and one flow meter communication module. In some embodiments, the first meter power module 213 and the second meter power module 223 are provided as the same meter power module.
The first flowmeter communication module 212, the first flowmeter power module 213, the second flowmeter communication module 222 and the second flowmeter power module 223 are coated with waterproof coatings or packaged in waterproof material shells.
The monitoring unit 400 is arranged in a control box near the rainwater well, is convenient to install and prevents the rainwater well from being easily watered and damaged due to aging. The monitoring unit 400 receives data from the water level gauge 100, the first flow meter 210, the second flow meter 220 and the travel switch 300 through near field communication, specifically, a Zigbee network or bluetooth is used. The monitoring unit 400 transmits the received data to the control center 500 through a mobile network, specifically, the data is transmitted through a network such as 4G, GPRS, CDMA, or NB-IoT, and the control center 500 is provided with a server to receive various data of the rainwater well. The control center 500 may control the states of the water level gauge 100, the first flow meter 210, the second flow meter 220, and the stroke switch 300 through the monitoring unit 400. The control center 500 transmits a control command to the monitoring unit 400 through the mobile network, and the monitoring unit 400 transmits the control command to the water level gauge 100, the first flow meter 210, the second flow meter 220 and each communication module of the travel switch 300, controls the state of each device, for example, sets parameters of a rainwater well or a pipeline to the water level gauge 100, the first flow meter 210 and the second flow meter 220, and starts or shuts down each device.
The control center 500 calculates the real-time drainage flow of the rainwater well according to the difference between the real-time inflow of the first flowmeter 210 and the real-time drainage flow of the second flowmeter 220, the first flowmeter 210 measures the real-time inflow of the upstream position of the drainage pipeline connected with the rainwater well, the second flowmeter 220 measures the real-time drainage flow of the downstream position of the drainage pipeline connected with the rainwater well, the real-time drainage flow of the downstream position of the drainage pipeline is the sum of the inflow of the upstream position of the drainage pipeline and the water drained to the drainage pipeline of the rainwater well, the real-time drainage flow of the drainage pipeline minus the real-time inflow is the real-time drainage flow of the rainwater well, and related personnel can accurately know the drainage condition of the rainwater well according to the real-time drainage flow of the rainwater.
When a plurality of rainwater wells are arranged in a row, a flowmeter is arranged between adjacent rainwater wells, and the real-time drainage flow of the flowmeter of the previous rainwater well is used as the water inflow flow data of the current rainwater well, so that the drainage conditions of the plurality of rainwater wells in the row are obtained.
In general, the monitoring unit 400 transmits the well lid status, the water level data and the flow rate data to the control center 500 through the mobile network at regular time intervals, which may be set as needed, for example, data is transmitted to the control center 500 every hour. When the water level data and the flow data exceed the preset values or the state of the well lid changes, the control center 500 sets the time interval of data transmission to be 1 minute.
When the water level data and the flow data exceed the preset alarm value or the well lid state changes, the monitoring unit 400 reports alarm information to the control center 500 in real time, the control center 500 sends the alarm information to relevant personnel through short messages or APP and other channels, and the relevant personnel can inquire and read the water level information, the flow information, the geographical position information and the well lid state of the rainwater well in real time. The monitoring unit 400 may also send information, specifically, a Zigbee network or bluetooth, to the relevant person through near field communication.
In the description of the present specification, the terms "connect", "mount", "fix", and the like are to be understood in a broad sense, for example, "connect" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In the description of the present application, the description of the terms "one embodiment," "some embodiments," etc. means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A drainage pipeline monitoring device based on the Internet of things is characterized by comprising a water level meter, a first flow meter, a second flow meter and a monitoring unit, wherein,
the water level meter is arranged on the inner wall of the catch basin;
the first flowmeter is arranged at the upstream position of a drainage pipeline connected with the catch basin;
the second flowmeter is arranged at the downstream position of a drainage pipeline connected with the catch basin;
the monitoring unit is arranged in a control box near the catch basin; the water level meter, the first flow meter and the second flow meter are connected through near field communication; and is connected with the control center through a mobile communication network.
2. The drainpipe monitoring device according to claim 1, further comprising:
travel switch, travel switch sets up in the well lid below, with the monitoring unit is connected for the position state of monitoring rainwater well lid.
3. Drainage pipeline monitoring device according to claim 1,
the water level gauge is an electronic water level gauge,
and the electronic water level gauge is electrically connected with a water level gauge communication module and a water level gauge power supply module.
4. A drainpipe monitoring device according to claim 3,
the electronic water level gauge extends from the bottom end of the inner wall of the rainwater well to the top end of the inner wall of the rainwater well and is arranged in a hollow mounting bracket which is fixed on the inner wall of the rainwater well,
the water level gauge communication module and the water level gauge power supply module are arranged at the top end in the mounting bracket.
5. Drainage pipeline monitoring device according to claim 1,
the first flowmeter is provided with a first Doppler ultrasonic probe, a first flowmeter communication module and a first flowmeter power module which are electrically connected with the first Doppler ultrasonic probe;
the second flowmeter is set as a second Doppler ultrasonic probe, a second flowmeter communication module and a second flowmeter power module, wherein the second flowmeter communication module and the second flowmeter power module are electrically connected with the second Doppler ultrasonic probe.
6. Drainage pipeline monitoring device according to claim 5,
the first flow meter communication module comprises a first analog-to-digital converter and a first signal processor connected with the first analog-to-digital converter, and the first signal processor is connected with the monitoring unit;
the second flowmeter communication module comprises a second analog-to-digital converter and a second signal processor connected with the second analog-to-digital converter, and the second signal processor is connected with the monitoring unit.
7. Drainage pipeline monitoring device according to claim 6,
the first flow meter communication module and the second flow meter communication module are the same flow meter communication module.
8. Drainage pipeline monitoring device according to claim 5,
waterproof coatings are coated outside the first flowmeter communication module and the first flowmeter power module or are packaged in a waterproof material shell;
and waterproof coatings are coated outside the second flowmeter communication module and the second flowmeter power supply module or are packaged in a waterproof material shell.
9. Drainage pipeline monitoring device according to claim 1,
the control center is used for calculating the real-time drainage flow of the rainwater well according to the data of the first flowmeter and the second flowmeter received from the monitoring unit, and comprises the following steps:
the first flowmeter is spaced from the water outlet of the catch basin and is used for measuring the real-time inflow rate of the upstream position of the drainage pipeline;
the second flowmeter is spaced from the water outlet of the catch basin and is used for measuring the real-time drainage flow of the downstream position of the drainage pipeline;
and the control center calculates the real-time drainage flow of the catch basin according to the difference value of the real-time water inlet flow of the first flowmeter and the real-time drainage flow of the second flowmeter.
10. Drainage pipeline monitoring device according to claim 1,
the monitoring unit transmits data with the water level meter, the first flow meter and the second flow meter by adopting a Zigbee network or Bluetooth.
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