Pipe network sewage flow monitoring equipment and supervision system based on wireless communication

Abstract

The present invention relates to the field of sewage pipe network measurement technology, specifically to pipe network sewage flow monitoring equipment and a supervision system based on wireless communication, including a sewage pipe network detection section installed between sewage pipes. The monitoring equipment in the sewage pipe network detection section sends monitoring information to a signal receiving device on the ground through a wireless network. The monitoring equipment includes a refraction component arranged on the upper part of the sewage pipe network detection section, and a fixed ring component and a sliding ring component located on both sides of the refraction component; the fixed ring component is fixedly arranged on the sewage pipe network detection section, and the sliding ring component is slidably arranged on the sewage pipe network detection section through a sliding guide. The sliding drive component is connected to the sliding ring component in transmission to drive it to move. The flow rate, water level, silt deposition height and other information in the sewage pipe network are obtained through the sewage pipe network detection section. A prediction model is established through big data analysis to optimize the operation and management of the sewage pipe network.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage pipe network measurement, and in particular to pipe network sewage flow monitoring equipment and a supervision system based on wireless communication. Background Art

[0002] With the acceleration of urbanization and the growth of industrial production, the supervision of sewage pipe networks has become increasingly important. Traditional supervision methods often rely on manual inspections, which are not only inefficient but also lack comprehensive coverage. To address this problem, big data analysis technology has been introduced into sewage pipe network supervision. By collecting, integrating, analyzing, and mining massive amounts of data, it can achieve real-time monitoring, early warning prediction, and optimized management of sewage pipe networks, thereby improving supervision efficiency, reducing operation and maintenance costs, and providing strong support for environmental protection and public safety.

[0003] Through monitoring equipment distributed in the sewage pipeline network, data including the pipeline flow, water level, silt conditions, operating status, water quality parameters, etc. can be obtained. Through big data analysis technology, these scattered data can be integrated, and data mining and machine learning algorithms can be used to conduct real-time monitoring and early warning prediction of the operating status of the sewage pipeline network.

[0004] There are many methods for real-time monitoring of sewage pipe networks, including ultrasonic flow monitoring, millimeter wave flow monitoring, water turbidity sensors, water level sensors, and water pressure sensors, among others. Ultrasonic flowmeters, as non-contact measuring instruments, can be used to measure the flow of difficult-to-reach and difficult-to-observe fluids and large pipe diameters. They do not alter the fluid's flow state, do not cause pressure loss, and are easy to install. They can measure a wide range of media, including various liquids and sewage flows, including highly corrosive and non-conductive media.

[0005] Due to the large fluctuations in sewage flow in urban sewage pipes and the design requirements for drainage capacity, sewage pipes are often not full. When using ultrasonic flowmeters to measure sewage flow in a partially full pipe, if the ultrasonic wave propagates / refracts through the sewage surface and enters the air, the different propagation speeds of ultrasonic waves in different media make it difficult to detect the effect of the fluid flow rate on the ultrasonic signal. Therefore, it is difficult to measure sewage flow using ultrasonic flowmeters in a partially full pipe state. At the same time, due to the environmental conditions of the sewage pipe network, sludge will gradually accumulate at the bottom of the pipe. Therefore, when using ultrasonic devices for monitoring, the accumulated sludge will bury and obstruct the ultrasonic device. The accumulated sludge blocks the signal transmitter / receiver, making it impossible to monitor the sewage pipe. Summary of the Invention

[0006] In response to the shortcomings of the existing technology, the present invention provides a pipe network sewage flow monitoring device and supervision system based on wireless communication. It can obtain information such as flow, water level, silt deposition height, etc. in the sewage pipe network through the sewage pipe network detection section when the pipe is not full or sludge is accumulated at the bottom of the pipe. Through big data analysis, a prediction model is established to optimize the operation and management of the sewage pipe network.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A pipe network sewage flow monitoring device based on wireless communication includes a sewage pipe network detection section installed between sewage pipes, the monitoring equipment in the sewage pipe network detection section sends monitoring information to a signal receiving device on the ground through a wireless network, the monitoring equipment includes a refraction component arranged on the upper part of the sewage pipe network detection section, a fixed ring component and a sliding ring component located on both sides of the refraction component; the fixed ring component is fixedly arranged on the sewage pipe network detection section, the sliding ring component is slidably arranged on the sewage pipe network detection section through a sliding guide, and the sliding drive component is transmission-connected to the sliding ring component to drive it to move; and further includes a device arranged on the fixed ring component and An ultrasonic emitting component capable of circumferential movement, an ultrasonic receiving component arranged on the sliding ring component and capable of circumferential movement, a transmission component driving the ultrasonic emitting component and the ultrasonic receiving component to move circumferentially synchronously, and making the ultrasonic emitting component and the ultrasonic receiving component always spatially symmetrical with the refraction component as the center; when sludge is deposited at the bottom of the sewage pipe network detection section, the circumferential position of the ultrasonic emitting component and the ultrasonic receiving component is changed so that they extend out of the sludge end surface to emit and receive ultrasonic waves to monitor the sewage flow; the refraction component can control its reflector to hover at the sewage liquid level position according to the sewage liquid level position in the sewage pipe network detection section.

[0009] Furthermore, the fixed ring assembly, the sliding ring assembly and the refractive assembly are connected via a linkage assembly, so that when the sliding ring assembly slides, the refractive assembly is always located in the middle position between the fixed ring assembly and the sliding ring assembly.

[0010] Furthermore, the fixed ring assembly includes a fixed ring seat and a fixed ring end cover, the fixed ring seat and the fixed ring end cover are fixedly connected and form a first limited space, the first rotating ring is slidably set in the first limited space, and the first rotating ring is also provided with a first ring gear and an ultrasonic transmitting assembly; the sliding ring assembly includes a sliding ring seat and a sliding ring end cover, the sliding ring seat and the sliding ring end cover are fixedly connected and form a second limited space, the second rotating ring is slidably set in the second limited space, and the second rotating ring is also provided with a second ring gear and an ultrasonic receiving assembly; the output end of the sliding motor of the sliding drive assembly is connected to the driving screw, and the driving screw is transmission-connected to the sliding ring assembly through the driving nut seat, and the upper and lower ends of the sliding ring seat are connected to the support guide rail of the sliding guide member through the sliding support block.

[0011] Furthermore, the linkage assembly includes a first link group and a second link group arranged crosswise, and the middle parts of the first link group and the second link group can be rotatably connected to the connecting seat, and the two ends of the first link group and the second link group are respectively hinged to the fixed ring hinge part on the fixed ring seat and the sliding ring hinge part on the sliding ring seat, and the connecting seat is fixedly set on the refractive assembly; when the sliding ring assembly slides, the refractive assembly is pulled to slide through the first link group, the second link group and the connecting seat, and the refractive assembly is always in the middle position between the sliding ring assembly and the fixed ring assembly.

[0012] Furthermore, the first connecting rod group includes a first driven rod, a first short rod, and a first active rod hinged end to end, the first driven rod is hinged to the fixed ring hinge part, the first active rod is hinged to the sliding ring hinge part, the middle position of the first short rod is hinged to the connecting seat, and the first driven rod and the first active rod have the same length; the second connecting rod group includes a second driven rod, a second short rod, and a second active rod hinged end to end, the second driven rod is hinged to the fixed ring hinge part, the second active rod is hinged to the sliding ring hinge part, the middle position of the second short rod is hinged to the connecting seat, and the second driven rod and the second active rod have the same length.

[0013] Furthermore, one end of the driving shaft of the rotating motor of the transmission assembly is connected to the transmission gear, and the other end is connected to the fixed ring gear through the second transmission shaft. The transmission gear is meshed with the reversing gear, and the reversing gear rotates synchronously with the sliding ring gear through the first transmission shaft; the fixed ring gear is connected to the first ring gear, and the sliding ring gear is connected to the second ring gear. The rotating motor can simultaneously drive the fixed ring gear and the sliding ring gear to rotate in opposite directions, and then drive the ultrasonic transmitting assembly and the ultrasonic receiving assembly to rotate circumferentially in opposite directions, so that the ultrasonic transmitting assembly and the ultrasonic receiving assembly are always symmetrical in spatial position with the refractive assembly as the center.

[0014] Furthermore, one end of the first transmission shaft is slidably connected to the first telescopic sleeve on the reversing gear side through a first transmission key, and one end of the drive shaft is slidably connected to the second transmission key on the second transmission shaft through a second telescopic sleeve, thereby changing the extension length of the transmission assembly during the movement of the sliding ring assembly.

[0015] Furthermore, the refraction assembly includes an inner sliding seat located inside the sewage pipe network detection section and an outer sliding seat outside the outer side. The lower side of the inner sliding seat is connected to the reflective plate assembly via a telescopic assembly. The reflective plate assembly is also provided with a lifting screw. The lifting nut gear located on the outer sliding seat is threadedly connected to the lifting screw. The lifting motor drives the lifting nut gear to rotate. The lifting nut gear is engaged with the encoder gear of the encoder. The outer sliding seat is also provided with a wireless signal transmitting device, and the sewage flow information obtained by the sewage pipe network detection section is sent through the wireless signal transmitting device.

[0016] The lower end surface of the middle part of the reflective plate assembly is a reflective part, and buoyancy blocks are provided on both sides of the reflective part. The buoyancy blocks can touch the contact switch upward after being subjected to the buoyancy of the fluid in the pipeline, so that the reflective plate assembly can hover at the liquid level position of the fluid in the pipeline.

[0017] The present invention proposes a pipe network sewage flow big data analysis and supervision system based on wireless communication, which adopts the above-mentioned monitoring equipment and includes a data acquisition module, which monitors the flow, water level and silt deposition height in the sewage pipe network in real time through the sewage pipe network detection section, and sends the monitoring information to the signal receiving device through the wireless signal transmitting device; a data processing module, which preprocesses and analyzes the collected data, including data cleaning, outlier processing, and trend analysis, and further extracts useful information for analysis and decision-making; a data analysis module, which uses the ARIMA time series model to evaluate and predict the flow, water level, silt height and water quality change patterns of the sewage pipe network; and an early warning decision-making module, which trains and learns the historical data obtained by the data analysis module according to the machine learning algorithm, establishes a prediction model and issues early warnings, formulates response measures and optimizes the operation and management of the sewage pipe network.

[0018] Furthermore, the real-time monitoring of the flow, water level and silt deposition height in the sewage pipe network includes using an ultrasonic transmitting component and an ultrasonic receiving component to detect the flow velocity of the sewage; using the buoyancy block on the reflecting plate component to make the reflecting plate component hover at the liquid surface position of the sewage, thereby obtaining the water level in the pipe network, and at the same time calculating the cross-sectional area of the sewage fluid section according to the water level, and calculating the flow rate of the sewage according to multiplying the cross-sectional area by the flow velocity; controlling the rotation motor to start, driving the ultrasonic transmitting component and the ultrasonic receiving component to rotate circumferentially from the bottom of the pipe and raise the vertical height, when the ultrasonic transmitting component and the ultrasonic receiving component are exposed from the silt deposited at the bottom of the pipe, the ultrasonic receiving component starts to receive the ultrasonic signal emitted by the ultrasonic transmitting component, and calculates the lifting height of the ultrasonic transmitting component and the ultrasonic receiving component according to the rotation stroke of the rotating motor, thereby determining the silt deposited at the bottom of the pipe.

[0019] Compared with the existing technology, the present invention provides a pipe network sewage flow monitoring device and big data analysis and supervision system based on wireless communication, which has the following beneficial effects:

[0020] 1. The present invention uses the refraction component in the sewage pipe network detection section to suspend at the liquid level of the sewage in the pipe, thereby ensuring that the ultrasonic waves emitted by the ultrasonic transmitting component and the ultrasonic receiving component are completely propagated in the sewage, thereby realizing the sewage flow detection in a non-full pipe state in the pipe.

[0021] 2. When the refraction component of the present invention changes its height, the sliding ring component drives the ultrasonic receiving component to move due to the change in the refraction path. At the same time, the sliding ring component pulls the refraction component to translate through the linkage component, so that the refraction component is always in the middle position between the sliding ring assembly and the fixed ring assembly, ensuring that the ultrasonic receiving component can receive the ultrasonic signal refracted by the reflective component.

[0022] 3. The transmission assembly of the present invention can simultaneously drive the first rotating ring and the second rotating ring to rotate synchronously in opposite directions, thereby allowing the ultrasonic transmitting assembly and the ultrasonic receiving assembly to move out of the sludge deposited at the bottom of the pipe along the pipe wall in a circumferential path. When the ultrasonic receiving assembly begins to receive the signal from the ultrasonic transmitting assembly, it indicates that the ultrasonic transmitting assembly and the receiving assembly have just emerged from the sludge deposited at the bottom of the pipe. By obtaining the rotational stroke of the rotating motor during this process, the lifting height of the ultrasonic transmitting assembly and the receiving assembly can be obtained, and the height of the sludge deposited at the bottom of the pipe can be determined. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Schematic diagram of the overall structure of the pipe network sewage flow monitoring device based on wireless communication of the present invention;

[0024] Figure 2is a perspective view of a monitoring device of the present invention;

[0025] Figure 3 Schematic diagram of the pipe network sewage flow monitoring system based on wireless communication of the present invention;

[0026] Figure 4 It is a structural schematic diagram of the fixed ring and sliding ring assembly of the present invention;

[0027] Figure 5 It is a cross-sectional schematic diagram of the fixed ring and the sliding ring of the present invention;

[0028] Figure 6 Schematic diagram of the ultrasonic refraction path of the present invention, wherein (a) is the refraction path in a low water level state, (b) is the refraction path in a high water level state, (c) is a top view of the refraction path, and (d) is a side view of the refraction path;

[0029] Figure 7 It is a schematic structural diagram of the linkage assembly of the present invention when it is retracted;

[0030] Figure 8 It is a schematic structural diagram of the linkage assembly of the present invention when it is extended;

[0031] Figure 9 It is a structural schematic diagram of the transmission assembly of the present invention;

[0032] Figure 10 Where (A) is Figure 9 The enlarged schematic diagram of point A in the middle, (B) is Figure 9 A magnified schematic diagram of point B in the middle;

[0033] Figure 11 is a schematic structural diagram of the refractive assembly of the present invention;

[0034] Figure 12 is a cross-sectional view of a reflector assembly of the present invention;

[0035] In the picture:

[0036] Sewage pipe network detection section 100, baffle 101, connecting flange 102; sewage pipe 200;

[0037] Refraction assembly 1, inner sliding seat 11, outer sliding seat 12, telescopic assembly 13, lifting screw 14, lifting nut gear 15, encoder gear 16, encoder 17, lifting motor 18, wireless signal transmitter 19, reflector assembly 10, reflecting part 110, buoyancy block 120, contact switch 130;

[0038] Fixed ring assembly 2, fixed ring seat 21, fixed ring end cover 22, first rotating ring 23, first gear ring 24, fixed ring hinge portion 25;

[0039] Sliding ring assembly 3, sliding ring seat 31, sliding ring end cover 32, second rotating ring 33, second gear ring 34, sliding ring hinge part 35, driving nut seat 36;

[0040] Linkage assembly 4, first connecting rod group 41, first driven rod 411, first short rod 412, first active rod 413, second connecting rod group 42, second driven rod 421, second short rod 422, second active rod 423, connecting seat 43;

[0041] Transmission assembly 5, rotating motor 51, drive shaft 52, second telescopic sleeve 521, transmission gear 53, reversing gear 54, first telescopic sleeve 541, first transmission shaft 55, first transmission key 551, sliding ring gear 56, second transmission shaft 57, second transmission key 571, fixed ring gear 58;

[0042] Sliding guide 6, support rail 61, sliding support block 62;

[0043] Sliding drive assembly 7, sliding motor 71, driving screw 72;

[0044] Ultrasonic wave transmitting component 8; Ultrasonic wave receiving component 9; Implementation Method

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0046] The present invention is described in detail below with reference to the accompanying drawings. The pipe network sewage flow monitoring equipment and big data analysis and supervision system based on wireless communication of the present invention include a sewage pipe network detection section 100 installed between sewage pipes 200. The monitoring equipment in the sewage pipe network detection section 100 sends monitoring information to a signal receiving device on the ground through a wireless network. The monitoring equipment includes a refraction component 1 arranged on the upper part of the sewage pipe network detection section 100, a fixed ring component 2 and a sliding ring component 3 located on both sides of the refraction component 1; the fixed ring component 2 is fixedly arranged on the sewage pipe network detection section 100, and the sliding ring component 3 is slidably arranged on the sewage pipe network detection section 100 through a sliding guide 6. The sliding drive component 7 is transmission-connected to the sliding ring component 3 to drive Its movement; it also includes an ultrasonic emitting component 8 arranged on the fixed ring component 2 and capable of circumferential movement, an ultrasonic receiving component 9 arranged on the sliding ring component 3 and capable of circumferential movement, the transmission component 5 drives the ultrasonic emitting component 8 and the ultrasonic receiving component 9 to move circumferentially synchronously, and makes the ultrasonic emitting component 8 and the ultrasonic receiving component 9 always spatially symmetrical with the refraction component 1 as the center; when sludge is deposited at the bottom of the sewage pipe network detection section 100, the circumferential position of the ultrasonic emitting component 8 and the ultrasonic receiving component 9 is changed so that they extend out of the sludge end surface to emit and receive ultrasonic waves to monitor the sewage flow; the refraction component 1 can control its reflector to hover at the sewage liquid level position according to the sewage liquid level position in the sewage pipe network detection section 100.

[0047] The refraction component 1 in the sewage network detection section 100 is suspended at the liquid level of the sewage in the pipe, thereby ensuring that the ultrasonic waves emitted by the ultrasonic transmitting component 8 and the ultrasonic receiving component 9 are completely propagated in the sewage. It is known that the propagation speed of ultrasonic waves in sewage, air or pipe walls is different. When using ultrasonic waves to measure the flow rate of the fluid, the flow rate of the fluid is determined based on the influence of the flow rate of the fluid on the propagation of ultrasonic waves. Therefore, the refraction path of the ultrasonic wave and the certainty of the propagation speed in the refraction path must be guaranteed. The present invention uses the refraction component 1 to ensure that regardless of the height of the sewage water level in the pipe, the ultrasonic wave can be completely and only propagated in the sewage, thereby realizing the sewage flow detection in a non-full pipe state in the pipe.

[0048] According to the attached Figure 4 The fixed ring assembly 2, the sliding ring assembly 3 and the refractive assembly 1 are connected by a linkage assembly 4, so that when the sliding ring assembly 3 slides, the refractive assembly 1 is always located in the middle position between the fixed ring assembly 2 and the sliding ring assembly 3.

[0049] See attached Figure 5The fixed ring assembly 2 includes a fixed ring seat 21 and a fixed ring end cover 22. The fixed ring seat 21 and the fixed ring end cover 22 are fixedly connected and enclose a first limited space. The first rotating ring 23 is slidably arranged in the first limited space. The first rotating ring 23 is also provided with a first ring gear 24 and an ultrasonic transmitting assembly 8; the sliding ring assembly 3 includes a sliding ring seat 31 and a sliding ring end cover 32. The sliding ring seat 31 and the sliding ring end cover 32 are fixedly connected and enclose a second limited space. The second rotating ring 33 is slidably arranged in the second limited space. The second rotating ring 33 is also provided with a second ring gear 34 and an ultrasonic receiving assembly 9; the output end of the sliding motor 71 of the sliding drive assembly 7 is connected to the driving screw 72, and the driving screw 72 is transmission-connected to the sliding ring assembly 3 through the driving nut seat 36. The upper and lower ends of the sliding ring seat 31 are connected to the support guide rail 61 of the sliding guide member 6 through the sliding support block 62.

[0050] According to the attached Figure 7 The linkage assembly 4 includes a first link group 41 and a second link group 42 arranged crosswise, and the middle parts of the first link group 41 and the second link group 42 can be rotatably connected to the connecting seat 43, and the two ends of the first link group 41 and the second link group 42 are respectively hinged to the fixed ring hinge part 25 on the fixed ring seat 21 and the sliding ring hinge part 35 on the sliding ring seat 31, and the connecting seat 43 is fixedly set on the refractive assembly 1; when the sliding ring assembly 3 slides, the refractive assembly 1 is pulled to slide by the first link group 41, the second link group 42 and the connecting seat 43, and the refractive assembly 1 is always in the middle position between the sliding ring assembly 3 and the fixed ring assembly 2.

[0051] When the refraction component 1 changes its height, the sliding ring component 3 drives the ultrasonic receiving component 9 to move due to the change in the refraction path. At the same time, the sliding ring component 3 pulls the refraction component 1 to translate through the linkage component 4, so that the refraction component 1 is always in the middle position between the sliding ring component 3 and the fixed ring component 2, ensuring that the ultrasonic receiving component 9 can receive the ultrasonic signal refracted by the refraction component 1.

[0052] See attached Figure 8The first connecting rod group 41 includes a first driven rod 411, a first short rod 412, and a first active rod 413 hinged end to end, the first driven rod 411 is hinged to the fixed ring hinge part 25, the first active rod 413 is hinged to the sliding ring hinge part 35, the middle position of the first short rod 412 is hinged to the connecting seat 43, and the first driven rod 411 and the first active rod 413 have the same length; the second connecting rod group 42 includes a second driven rod 421, a second short rod 422, and a second active rod 423 hinged end to end, the second driven rod 421 is hinged to the fixed ring hinge part 25, the second active rod 423 is hinged to the sliding ring hinge part 35, the middle position of the second short rod 422 is hinged to the connecting seat 43, and the second driven rod 421 and the second active rod 423 have the same length.

[0053] See attached Figure 9 One end of the driving shaft 52 of the rotating motor 51 of the transmission assembly 5 is connected to the transmission gear 53, and the other end is connected to the fixed ring gear 58 through the second transmission shaft 57. The transmission gear 53 is meshed with the reversing gear 54, and the reversing gear 54 rotates synchronously with the sliding ring gear 56 through the first transmission shaft 55; the fixed ring gear 58 is transmission-connected to the first ring gear 24, and the sliding ring gear 56 is transmission-connected to the second ring gear 34. By rotating the motor 51, the fixed ring gear 58 and the sliding ring gear 56 can be driven to rotate in opposite directions at the same time, thereby driving the ultrasonic transmitting assembly 8 and the ultrasonic receiving assembly 9 to rotate circumferentially in opposite directions, so that the ultrasonic transmitting assembly 8 and the ultrasonic receiving assembly 9 are always spatially symmetrical with the refractive assembly 1 as the center.

[0054] Combined with attachment Figure 6 It shows that the ultrasonic emitting component 8 and the ultrasonic receiving component 9 are always symmetrical in space with the refractive component 1 as the center. Since the circumferential movement of the ultrasonic emitting component 8 and the ultrasonic receiving component 9 is synchronous and reverse movement, according to Figure 6 (c) and Figure 6 (d) It can be seen that its position is always symmetrical with the refractive component 1 as the center, thus ensuring the refraction path of the ultrasonic wave.

[0055] The transmission assembly 5 can simultaneously drive the first rotating ring 23 and the second rotating ring 33 to rotate synchronously in opposite directions, thereby allowing the ultrasonic emitting assembly 8 and the ultrasonic receiving assembly 9 to move out of the sludge deposited at the bottom of the pipe along the pipe wall in a circumferential path. When the ultrasonic receiving assembly 9 begins to receive the signal of the ultrasonic emitting assembly 8, it indicates that the ultrasonic emitting assembly and the receiving assembly have just been exposed to the sludge deposited at the bottom of the pipe. By obtaining the rotation stroke of the rotating motor 51 during this process, the lifting height of the ultrasonic emitting assembly and the receiving assembly can be obtained, and the height of the sludge deposited at the bottom of the pipe can be determined.

[0056] See attached Figure 10 One end of the first transmission shaft 55 is slidingly connected to the first telescopic sleeve 541 on the reversing gear 54 through the first transmission key 551, and one end of the drive shaft 52 is slidingly connected to the second transmission key 571 on the second transmission shaft 57 through the second telescopic sleeve 521, thereby changing the extension length of the transmission assembly 5 during the movement of the sliding ring assembly 3.

[0057] According to the attached Figure 11 The refraction assembly 1 includes an inner sliding seat 11 located inside the sewage pipe network detection section 100 and an outer sliding seat 12 outside the outer side. The lower side of the inner sliding seat 11 is connected to the reflective plate assembly 10 through a telescopic assembly 13. The reflective plate assembly 10 is also provided with a lifting screw 14. The lifting nut gear 15 located on the outer sliding seat 12 is threadedly connected to the lifting screw 14. The lifting motor 18 drives the lifting nut gear 15 to rotate. The lifting nut gear 15 is engaged with the encoder gear 16 of the encoder 17. The outer sliding seat 12 is also provided with a wireless signal transmitter 19, and the sewage flow information obtained by the sewage pipe network detection section 100 is sent through the wireless signal transmitter 19.

[0058] The lower end surface of the middle part of the reflective plate assembly 10 is the reflective portion 110, and buoyancy blocks 120 are provided on both sides of the reflective portion 110. The buoyancy blocks 120 can touch the contact switch 130 upward after being subjected to the buoyancy of the fluid in the pipeline, so that the reflective plate assembly 10 can hover at the liquid level position of the fluid in the pipeline.

[0059] The present invention proposes a pipe network sewage flow big data analysis and supervision system based on wireless communication, which adopts the above-mentioned monitoring equipment, including a data acquisition module, which monitors the flow, water level and silt deposition height in the sewage pipe network in real time through the sewage pipe network detection section 100, and sends the monitoring information to the signal receiving device through the wireless signal transmitting device 19; a data processing module, which preprocesses and analyzes the collected data, including data cleaning, outlier processing, and trend analysis, and further extracts useful information for analysis and decision-making; a data analysis module, which uses the ARIMA time series model to evaluate and predict the flow, water level, silt height and water quality change patterns of the sewage pipe network; and an early warning decision-making module, which trains and learns the historical data obtained by the data analysis module according to the machine learning algorithm, establishes a prediction model and issues early warnings, formulates response measures and optimizes the operation and management of the sewage pipe network.

[0060] The real-time monitoring of the flow, water level and silt deposition height in the sewage pipe network includes using the ultrasonic transmitting component 8 and the ultrasonic receiving component 9 to detect the flow rate of the sewage; the buoyancy block 120 on the reflecting plate component 10 is used to make the reflecting plate component 10 hover at the liquid surface position of the sewage, thereby obtaining the water level in the pipe network, and at the same time calculating the cross-sectional area of the sewage fluid section according to the water level, and calculating the flow rate of the sewage by multiplying the cross-sectional area by the flow rate; controlling the rotating motor 51 to start, driving the ultrasonic transmitting component 8 and the ultrasonic receiving component 9 to rotate circumferentially from the bottom of the pipe and raise the vertical height. When the ultrasonic transmitting component 8 and the ultrasonic receiving component 9 are exposed from the silt deposited at the bottom of the pipe, the ultrasonic receiving component 9 begins to receive the ultrasonic signal emitted by the ultrasonic transmitting component 8, and the lifting height of the ultrasonic transmitting component 8 and the ultrasonic receiving component 9 is calculated according to the rotation stroke of the rotating motor 51, thereby determining the silt deposited at the bottom of the pipe.

[0061] When determining the liquid level of sewage in the pipeline, the reflector assembly 10 is controlled to gradually descend from its highest position. When the contact switch 130 receives a signal, the encoder 17 determines the hovering height of the reflector assembly 10, thereby determining the liquid level of the sewage in the pipeline, and calculating the cross-sectional area of the sewage fluid based on the liquid level height. The slip ring assembly 3 is controlled to change the horizontal distance between the ultrasonic transmitting assembly 8 and the ultrasonic receiving assembly 9. When the ultrasonic receiving assembly 9 begins to receive ultrasonic signals, the slip ring assembly 3 is stopped, and the horizontal position between the ultrasonic transmitting assembly 8 and the ultrasonic receiving assembly 9 is obtained. The refraction path of the ultrasonic wave in the sewage fluid can be calculated based on the height of the reflector assembly 10. When sludge is deposited in the pipeline, the first rotating ring 23 and the second rotating ring 33 are rotated to raise the vertical height of the ultrasonic transmitting assembly 8 and the ultrasonic receiving assembly 9 to expose the surface of the deposited sludge. The vertical height of the refraction path is determined based on the raised height of the ultrasonic transmitting assembly 8 and the ultrasonic receiving assembly 9 and the height of the reflector assembly 10, and the refraction path of the ultrasonic wave is recalculated based on the horizontal distance between the ultrasonic transmitting assembly 8 and the ultrasonic receiving assembly 9.

[0062] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A pipe network sewage flow monitoring device based on wireless communication, comprising a sewage pipe network detection section (100) installed between sewage pipes (200), wherein the monitoring device in the sewage pipe network detection section (100) transmits monitoring information to a signal receiving device on the ground via a wireless network, and is characterized in that: The monitoring device comprises a refraction assembly (1) arranged on the upper part of the sewage pipe network detection section (100), and a fixed ring assembly (2) and a sliding ring assembly (3) located on both sides of the refraction assembly (1); The fixed ring assembly (2) is fixedly arranged on the sewage pipe network detection section (100), the sliding ring assembly (3) is slidably arranged on the sewage pipe network detection section (100) via a sliding guide (6), and the sliding drive assembly (7) is transmission-connected to the sliding ring assembly (3) to drive its movement; It also includes an ultrasonic emitting assembly (8) disposed on the fixed ring assembly (2) and capable of circumferential movement, and an ultrasonic receiving assembly (9) disposed on the sliding ring assembly (3) and capable of circumferential movement, wherein the transmission assembly (5) drives the ultrasonic emitting assembly (8) and the ultrasonic receiving assembly (9) to synchronously move circumferentially, and ensures that the ultrasonic emitting assembly (8) and the ultrasonic receiving assembly (9) are always spatially symmetrical with the refractive assembly (1) as the center. When sludge is deposited at the bottom of the sewage pipe network detection section (100), the circumferential position of the ultrasonic transmitting component (8) and the ultrasonic receiving component (9) is changed so that they extend beyond the sludge end surface to transmit and receive ultrasonic waves to monitor the sewage flow rate; The refraction component (1) can control its reflector to hover at the sewage level position according to the sewage level position in the sewage pipe network detection section (100); The fixed ring assembly (2) includes a fixed ring seat (21) and a fixed ring end cover (22); the fixed ring seat (21) and the fixed ring end cover (22) are fixedly connected and enclose a first limited space; a first rotating ring (23) is slidably arranged in the first limited space; and a first gear ring (24) and an ultrasonic emitting assembly (8) are further arranged on the first rotating ring (23); The sliding ring assembly (3) includes a sliding ring seat (31) and a sliding ring end cover (32). The sliding ring seat (31) and the sliding ring end cover (32) are fixedly connected and enclose a second limited space. The second rotating ring (33) is slidably arranged in the second limited space. The second rotating ring (33) is also provided with a second gear ring (34) and an ultrasonic receiving assembly (9). The output end of the sliding motor (71) of the sliding drive assembly (7) is connected to the driving screw (72), and the driving screw (72) is connected to the sliding ring assembly (3) through the driving nut seat (36). The upper and lower ends of the sliding ring seat (31) are connected to the support rail (61) of the sliding guide member (6) through the sliding support block (62).

2. The pipe network sewage flow monitoring device based on wireless communication according to claim 1 is characterized in that: The fixed ring assembly (2), the sliding ring assembly (3) and the refractive assembly (1) are connected via a linkage assembly (4), so that during the sliding process of the sliding ring assembly (3), the refractive assembly (1) is always located in the middle position between the fixed ring assembly (2) and the sliding ring assembly (3).

3. The pipe network sewage flow monitoring device based on wireless communication according to claim 2 is characterized in that: The linkage assembly (4) comprises a first connecting rod group (41) and a second connecting rod group (42) arranged crosswise, and the middle parts of the first connecting rod group (41) and the second connecting rod group (42) are rotatably connected to the connecting seat (43), and the two ends of the first connecting rod group (41) and the second connecting rod group (42) are respectively hinged to the fixed ring hinge part (25) on the fixed ring seat (21) and the sliding ring hinge part (35) on the sliding ring seat (31), and the connecting seat (43) is fixedly arranged on the refractive assembly (1); When the sliding ring assembly (3) slides, the refractive assembly (1) is pulled to slide by the first connecting rod assembly (41), the second connecting rod assembly (42) and the connecting seat (43), and the refractive assembly (1) is always located in the middle position between the sliding ring assembly (3) and the fixed ring assembly (2).

4. The pipe network sewage flow monitoring device based on wireless communication according to claim 3 is characterized in that: The first connecting rod group (41) includes a first driven rod (411), a first short rod (412), and a first active rod (413) that are hinged at both ends. The first driven rod (411) is hinged to the fixed ring hinge portion (25), the first active rod (413) is hinged to the sliding ring hinge portion (35), the middle position of the first short rod (412) is hinged to the connecting seat (43), and the first driven rod (411) and the first active rod (413) have the same length. The second connecting rod group (42) includes a second driven rod (421), a second short rod (422), and a second active rod (423) which are hinged at both ends. The second driven rod (421) is hinged to the fixed ring hinge portion (25), the second active rod (423) is hinged to the sliding ring hinge portion (35), the middle position of the second short rod (422) is hinged to the connecting seat (43), and the second driven rod (421) and the second active rod (423) have the same length.

5. The pipe network sewage flow monitoring device based on wireless communication according to claim 4 is characterized in that: One end of the driving shaft (52) of the rotating motor (51) of the transmission assembly (5) is connected to the transmission gear (53), and the other end is connected to the fixed ring gear (58) through the second transmission shaft (57). The transmission gear (53) is meshed with the reversing gear (54), and the reversing gear (54) rotates synchronously with the sliding ring gear (56) through the first transmission shaft (55); The fixed ring gear (58) is in transmission connection with the first ring gear (24), and the sliding ring gear (56) is in transmission connection with the second ring gear (34). By rotating the motor (51), the fixed ring gear (58) and the sliding ring gear (56) can be driven to rotate in opposite directions at the same time, thereby driving the ultrasonic emitting component (8) and the ultrasonic receiving component (9) to rotate circumferentially in opposite directions, so that the ultrasonic emitting component (8) and the ultrasonic receiving component (9) are always spatially symmetrical with the refractive component (1) as the center.

6. The pipe network sewage flow monitoring device based on wireless communication according to claim 5, characterized in that: One end of the first transmission shaft (55) is slidably connected to the first telescopic sleeve (541) on the side of the reversing gear (54) via a first transmission key (551), and one end of the drive shaft (52) is slidably connected to the second transmission key (571) on the second transmission shaft (57) via a second telescopic sleeve (521), thereby changing the extension length of the transmission assembly (5) during the movement of the sliding ring assembly (3).

7. The pipe network sewage flow monitoring device based on wireless communication according to claim 6, characterized in that: The refraction assembly (1) comprises an inner sliding seat (11) located inside the sewage pipe network detection section (100) and an outer sliding seat (12) located outside the sewage pipe network detection section (100); the inner sliding seat (11) is connected to the reflection plate assembly (10) below via a telescopic assembly (13); the reflection plate assembly (10) is further provided with a lifting screw (14); a lifting nut gear (15) located on the outer sliding seat (12) is threadedly connected to the lifting screw (14); a lifting motor (18) drives the lifting nut gear (15) to rotate; the lifting nut gear (15) is meshed with an encoder gear (16) of an encoder (17); a wireless signal transmitting device (19) is further provided on the outer sliding seat (12); sewage flow information acquired by the sewage pipe network detection section (100) is transmitted via the wireless signal transmitting device (19); The lower end surface of the middle portion of the reflective plate assembly (10) is a reflective portion (110), and buoyancy blocks (120) are provided on both sides of the reflective portion (110). The buoyancy blocks (120) are able to touch the contact switch (130) upwards after receiving the buoyancy of the fluid in the pipeline, so that the reflective plate assembly (10) can hover at the liquid level of the fluid in the pipeline.

8. A pipe network sewage flow monitoring system based on wireless communication, using the monitoring device according to claim 7, characterized in that: It includes a data acquisition module, which monitors the flow rate, water level and silt deposition height in the sewage pipe network in real time through the sewage pipe network detection section (100), and sends the monitoring information to the signal receiving device through the wireless signal transmitting device (19); The data processing module pre-processes and analyzes the collected data, including data cleaning, outlier processing, and trend analysis, and further extracts useful information for analysis and decision-making; The data analysis module uses the ARIMA time series model to evaluate and predict the flow rate, water level, silt height, and water quality changes of the sewage network; The early warning decision-making module trains and learns the historical data obtained by the data analysis module based on the machine learning algorithm, establishes a prediction model and issues early warnings, formulates response measures and optimizes the operation and management of the sewage network.

9. The pipe network sewage flow monitoring system according to claim 8, characterized in that: The real-time monitoring of the flow rate, water level and silt deposition height in the sewage pipe network includes using an ultrasonic transmitting component (8) and an ultrasonic receiving component (9) to detect the flow rate of the sewage; The buoyancy block (120) on the reflector assembly (10) allows the reflector assembly (10) to suspend at the liquid level of the sewage, thereby obtaining the water level in the pipe network, and calculating the cross-sectional area of the sewage flow section based on the water level, and calculating the flow rate of the sewage based on the cross-sectional area multiplied by the flow velocity; The rotating motor (51) is controlled to start, driving the ultrasonic emitting component (8) and the ultrasonic receiving component (9) to rotate circumferentially and raise the vertical height from the bottom of the pipeline. When the ultrasonic emitting component (8) and the ultrasonic receiving component (9) are exposed from the silt deposited at the bottom of the pipeline, the ultrasonic receiving component (9) begins to receive the ultrasonic signal emitted by the ultrasonic emitting component (8). The lifting height of the ultrasonic emitting component (8) and the ultrasonic receiving component (9) is calculated according to the rotation stroke of the rotating motor (51), thereby determining the height of the silt deposited at the bottom of the pipeline.

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