Pipeline water leakage detection system

Abstract

The utility model discloses a pipeline water leakage detection system, which is characterized in that a plurality of fire hydrants are arranged on a pipeline at intervals, the pipeline water leakage detection system comprises a plurality of sensors, each fire hydrant is provided with one sensor, and the sensors comprise a pressure sensor, a flow velocity sensor and a sound sensor; an edge calculator, each sensor is connected to the edge calculator, and the edge calculator is used for preprocessing the signal data collected by the sensors; and the cloud server is connected with the edge calculator, and the cloud server obtains a water leakage detection result according to the preprocessed signal data of the plurality of adjacent fire hydrants. According to the utility model, a water leakage detection result is obtained through signal data of pressure, water flow and sound, so that an error caused by a single factor variable is avoided, the accuracy of water leakage detection is improved, and accurate positioning of a pipeline water leakage point is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline detection technical field, concretely relates to a pipeline water leakage detection system. BACKGROUND

[0002] Fire hydrant is an important component of fire infrastructure, and is also an important index for measuring the ability of a city to prevent and reduce disasters. Therefore, water supply pipelines need to be installed with fire hydrants in sections to achieve the purpose of fire protection. In practical application, the patrol personnel detects the water leakage of the pipeline by detecting the water pressure of the fire hydrant. However, the change of water pressure will be affected by many factors, and the monitoring of water pressure cannot cover many different emergency situations, so it cannot accurately determine whether the pipeline leaks. SUMMARY

[0003] The main purpose of the utility model is to provide a pipeline water leakage detection system to provide the accuracy of water leakage detection.

[0004] To achieve the above purpose, the utility model provides a pipeline water leakage detection system, which is provided with a plurality of fire hydrants arranged at intervals on the pipeline, comprising:

[0005] A plurality of sensors, each of the fire hydrants is provided with a sensor, and the sensor comprises a pressure sensor, a flow rate sensor and a sound sensor;

[0006] An edge calculator, each of the sensors is connected to the edge calculator, and the edge calculator is used for pre-processing the signal data collected by the sensor; and

[0007] A cloud server, the cloud server is connected with the edge calculator, and the cloud server obtains a water leakage detection result according to the pre-processed signal data of the adjacent plurality of fire hydrants.

[0008] Optionally, the cloud server comprises a water leakage detection module and a warning platform, the water leakage detection module is connected with the edge calculator, the warning platform is connected to the water leakage detection module, and the warning platform is used for sending a warning signal according to the detection result.

[0009] Optionally, the water leakage detection module comprises a cross-correlator and an adaptive filter connected with each other, the cross-correlator is used for determining the range of the water leakage point through cross-correlation positioning technology, and the adaptive filter is used for determining the position of the water leakage point through phase spectrum analysis method.

[0010] Optionally, the pipeline water leakage detection system further comprises an NB-lot communication module, the NB-lot communication module is arranged on the fire hydrant, and the edge calculator and the cloud server are connected through the NB-lot communication module.

[0011] Optionally, a filter is arranged between the edge computer and the sound sensor, and the sound sensors of the plurality of fire hydrants are respectively connected to the edge computer through the filter.

[0012] Optionally, the edge computer comprises a feature recognition module and a fusion algorithm module, the pressure sensor, the flow rate sensor and the sound sensor are respectively connected to the feature recognition module, the feature recognition module recognizes the signals of pressure, water flow and sound, the feature recognition module is connected to the fusion algorithm module, and the fusion algorithm module performs fusion calculation on the recognized signals based on an information fusion algorithm.

[0013] Optionally, the pipeline leakage detection system further comprises a photovoltaic power generator, the photovoltaic power generator is arranged on the fire hydrant, and the photovoltaic power generator is used to supply power to the equipment.

[0014] In the technical scheme of the utility model, pressure sensors, flow rate sensors and sound sensors are arranged on a plurality of fire hydrants to monitor the pressure, water flow and sound at different positions of the pipeline, and an edge computer pre-processes the signal data of pressure, water flow and sound; a cloud server analyzes the pre-processed signal data transmitted by the edge computer, and obtains a leakage detection result according to the pre-processed signal data of adjacent fire hydrants. The utility model detects the leakage detection result through the signal data of pressure, water flow and sound, thereby avoiding errors caused by single factor variables, and improving the accuracy of leakage detection. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to the structures shown in these drawings without creative labor.

[0016] Figure 1 It is an installation schematic view of the sensor on the fire hydrant in an embodiment of the utility model;

[0017] Figure 2 It is a structural schematic view of the pipeline leakage detection system in an embodiment of the utility model;

[0018] EXPLANATION OF DRAWINGS:

[0019] Pipe 100 Sound sensor 350 Fire hydrant 200 Edge calculator 400 Sensor 300 Cloud server 600 Pressure sensor 310 NB-lot communication module 700 Flow rate sensor 330 Photovoltaic power generator 800

[0020] The realization, functional characteristics and advantages of the utility model will be further illustrated with reference to the drawings combined with the embodiments. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directional indications will also change accordingly.

[0023] In addition, if the embodiments of the present application involve descriptions of "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes A scheme, or B scheme, or A and B simultaneously satisfying the scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection required by the present application.

[0024] Referring to Figures 1 to 2 As shown in the utility model embodiment, a pipeline water leakage detection system is provided with a plurality of fire hydrants 200 arranged at intervals on a pipeline 100, comprising: a plurality of sensors 300, each of the fire hydrants 200 is provided with a sensor 300, the sensor 300 comprises a pressure sensor 310, a flow rate sensor 330 and a sound sensor 350; an edge calculator 400, each of the sensors 300 is connected to the edge calculator 400 respectively, the edge calculator 400 is used for preprocessing the signal data collected by the sensor 300; and a cloud server 600, the cloud server 600 is connected with the edge calculator 400, the cloud server 600 obtains a water leakage detection result according to the preprocessed signal data of the adjacent plurality of fire hydrants 200.

[0025] The utility model discloses a technical scheme in multiple fire hydrant 200 respectively sets up pressure sensor 310, flow rate sensor 330, sound sensor 350 to this monitoring pipeline 100 different position's pressure, water flow and sound, and edge computer 400 carries out the pretreatment to pressure, water flow and sound's signal data, and cloud server 600 carries out the analysis to the pretreated signal data that edge computer 400 transmitted, and cloud server 600 draws the water leakage detection result according to the pretreated signal data of adjacent fire hydrant 200.

[0026] Need to explain, the utility model flow rate sensor 330 detects the water flow at corresponding fire hydrant 200, is used to exclude the illegal water of outside, so as to produce the interference of pipeline 100's water leakage detection, under the premise of discharging the illegal water interference of outside, detects the water pressure and sound at fire hydrant 200, and draws the water leakage detection result based on the data signal of water pressure and sound.When water pressure and sound are all abnormal, cloud server 600 carries out the analysis to the sound signal of abnormal adjacent fire hydrant 200's sound sensor 350, to draw the water leakage detection result. When pipeline 100 leaks, cloud server 600 locates the specific position of water leakage point. Supplementary explanation, under the premise of knowing the speed of sound propagation in pipeline 100, based on the time of detecting the water leakage sound at adjacent fire hydrant 200, calculates the distance according to time and speed, to realize the positioning of water leakage point. The utility model embodiment carries out the pretreatment to the signal data that sensor 300 gathers through edge computer 400, and the pretreated data is transmitted to cloud server 600, reduces the data processing burden of cloud server 600, and cloud server 600 carries out the analysis to the collected signal data, to predict the possible fault condition, realizes the remote monitoring of pipeline 100.

[0027] Referring to Figures 1 to 2 As shown in the utility model an embodiment, the cloud server 600 includes water leakage detection module and early warning platform, the water leakage detection module is connected with the edge computer 400, the early warning platform is connected to the water leakage detection module, and the early warning platform is used to send early warning signal according to detection result. Need to explain, the utility model embodiment carries out the analysis to the pretreated acquisition signal through water leakage detection module, and the early warning platform is connected with water leakage detection module, and the early warning platform sends corresponding early warning signal based on the water leakage detection result of water leakage detection module, of course, the early warning signal can be sound signal, also can be photoelectric signal, can also be the combination of sound signal and photoelectric signal, and the utility model embodiment is not limited to this, so that all is within the protection scope of the utility model.

[0028] Referring toFigures 1 to 2 As shown in the utility model one embodiment, the water leakage positioning module includes each other's connection cross correlator and adaptive filter, the cross correlator is used for determining the range where the water leakage point is located through cross correlation positioning technology, the adaptive filter is used for determining the position where the water leakage point is located through phase spectrum analysis method. It needs to be explained that the cross correlator carries out first order or second order derivative calculation to the received sound signal, enhances the mutation part of the sound signal, so as to improve the correlation of the sound signal, thereby determining the pipeline 100 between the fire hydrant 200 where the water leakage point is located. Adaptive filter calculates the phase spectrum of the sound signal, analyzes the phase difference change caused by the propagation of the water leakage sound in the pipeline 100, further locates the specific position of the water leakage point, so as to realize the positioning of the water leakage point.

[0029] Referring to Figures 1 to 2 As shown in the utility model one embodiment, the pipeline water leakage detection system further includes NB-lot communication module 700, the NB-lot communication module 700 is arranged in the fire hydrant 200, and the edge computer 400 and the cloud server 600 are connected through the NB-lot communication module 700. It needs to be explained that the utility model embodiment utilizes narrowband internet of things NB-IoT wireless communication technology, NB-IoT wireless communication technology is a kind of low-power wide area network technology, suitable for remote monitoring, can realize low-power, low-cost, wide-coverage remote data transmission, ensure the effective monitoring of the state of pipeline 100.

[0030] Referring to Figures 1 to 2 As shown in the utility model one embodiment, the edge computer 400 and the sound sensor 350 are provided with filter, and the sound sensor 350 of a plurality of fire hydrants 200 is respectively connected to the edge computer 400 through filter. It needs to be explained that the utility model carries out filter processing to sound signal, filter processing can adopt different signal processing techniques, so as to avoid the interference of environmental noise, is favorable to extract effective sound information, so it is suitable for signal analysis in noisy environment, improves the accuracy and robustness of sound signal processing.

[0031] Referring to Figures 1 to 2As shown in the utility model one embodiment, the edge computer 400 includes feature recognition module and fusion algorithm module, the pressure sensor 310, the flow sensor 330 and the sound sensor 350 are connected to the feature recognition module respectively, the feature recognition module identifies the signals of pressure, water flow and sound, the feature recognition module is connected with the fusion algorithm module, the fusion algorithm module carries out fusion calculation to the signal identified based on information fusion algorithm.It needs to be explained that, the utility model extracts the key parameters by identifying the signals of pressure, water flow and sound collected by the sensor 300, and carries out fusion based on Dempster-Shafer (D-S) evidence theory and granularity calculation theory, Bayes network fusion, neural network fusion and other information fusion algorithms to different key parameters, to determine whether the pipeline 100 leaks water.Under the premise of excluding external illegal water use interference, the water pressure and sound at the fire hydrant 200 are detected, and when the water pressure and sound are both abnormal, the edge computer 400 judges whether the pipeline 100 leaks water, to realize accurate judgment of the pipeline 100 leak detection.And when detecting water leakage, the corresponding sound signal at the fire hydrant 200 is transmitted to the cloud server 600, to realize preprocessing of useless data, thereby reducing the data processing burden of the cloud server 600.

[0032] Referring to Figures 1 to 2 As shown in the utility model one embodiment, the pipeline leak detection system further includes photovoltaic power generator 800, the photovoltaic power generator 800 is connected to the edge computer 400, and the photovoltaic power generator 800 supplies power to the edge computer 400.The photovoltaic power generator 800 includes a solar panel and an energy storage device, the solar panel is arranged on the surface of the fire hydrant 200, for converting external solar energy into electrical energy, the solar panel is connected with the energy storage device, the energy storage device is used for storing converted electrical energy, and the energy storage device is connected to the edge computer 400, to realize power supply for the edge computer 400, and ensure the scheduled detection of the edge computer 400.

[0033] The above-mentioned is only the optional embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made by using the utility model specification and the attached drawings, or direct / indirect application in other related technical fields under the utility model concept of the utility model includes in the patent protection range of the utility model.

Claims

1. A pipe leakage detection system, a plurality of hydrants being provided at intervals on a pipe, characterized by The application relates to a pipeline leakage detection system. A plurality of sensors are arranged on the fire hydrants, wherein the sensors include pressure sensors, flow rate sensors and sound sensors; An edge computer is connected to the sensors, and the edge computer is used for preprocessing signal data collected by the sensors; A cloud server is connected to the edge computer, and the cloud server obtains a leakage detection result according to preprocessed signal data of adjacent fire hydrants. The cloud server includes a leakage detection module and an early warning platform, wherein the leakage detection module is connected to the edge computer, the early warning platform is connected to the leakage detection module, and the early warning platform is used for sending an early warning signal according to a detection result.

2. The plumbing leak detection system of claim 1, wherein, The leakage detection module includes a cross-correlator and an adaptive filter, wherein the cross-correlator is used for determining a range of a leakage point through a cross-correlation positioning technology, and the adaptive filter is used for determining a position of the leakage point through a phase spectrum analysis method.

3. The plumbing leak detection system of claim 2, wherein, The pipeline leakage detection system further includes an NB-lot communication module, wherein the NB-lot communication module is arranged on the fire hydrants, and the edge computer and the cloud server are connected through the NB-lot communication module.

4. The pipe leak detection system of any one of claims 1 to 3, wherein, A filter is arranged between the edge computer and the sound sensors, and the sound sensors of the plurality of fire hydrants are connected to the edge computer through the filter.

5. The plumbing leak detection system of any one of claims 1 to 3, wherein, The edge computer includes a feature recognition module and a fusion algorithm module, wherein the pressure sensors, the flow rate sensors and the sound sensors are connected to the feature recognition module, the feature recognition module is used for recognizing signals of pressure, water flow and sound, the feature recognition module is connected to the fusion algorithm module, and the fusion algorithm module is used for performing fusion calculation on the recognized signals based on an information fusion algorithm.

6. The plumbing leak detection system of any one of claims 1 to 3, wherein, The pipeline leakage detection system further includes a photovoltaic power generator, wherein the photovoltaic power generator is arranged on the fire hydrants, and the photovoltaic power generator is used for supplying power to equipment.

7. The plumbing leak detection system of any one of claims 1 to 3, wherein, ​

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