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

Abstract

The invention relates to the technical field of sewage pipe network measurement, in particular to a pipe network sewage flow monitoring device and supervisory system based on wireless communication, which comprises a sewage pipe network detection section arranged between sewage pipes, and the monitoring device in the sewage pipe network detection section sends monitoring information to a signal receiving device on the ground through a wireless network. The monitoring device comprises a refraction assembly arranged on the upper portion of the sewage pipe network detection section, and a fixed ring assembly and a sliding ring assembly located on the two sides of the refraction assembly. The fixed ring assembly is fixedly arranged on the sewage pipe network detection section, the sliding ring assembly is arranged on the sewage pipe network detection section in a sliding mode through a sliding guide piece, and the sliding driving assembly is in transmission connection with the sliding ring assembly so as to drive the sliding ring assembly to move. Information such as flow, water level and sludge deposition height in the sewage pipe network is obtained through the sewage pipe network detection section, and a prediction model is established through big data analysis to optimize operation management of the sewage pipe network.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage pipe network measurement, and particularly to a pipe network sewage flow monitoring device 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 difficult to cover comprehensively. To solve this problem, big data analysis technology has been introduced into the supervision of sewage pipe networks. By collecting, integrating, analyzing, and mining massive amounts of data, real-time monitoring, early warning prediction, and optimized management of sewage pipe networks can be achieved, thereby improving supervision efficiency, reducing operation and maintenance costs, and providing strong support for environmental protection and public safety.

[0003] Data such as the flow rate, water level, silt condition, operation status, and water quality parameters of the pipe network can be obtained through monitoring devices distributed in the sewage pipe network. Through big data analysis technology, these scattered data can be integrated, and data mining and machine learning algorithms can be used to monitor and predict the operation status of the sewage pipe network in real time.

[0004] There are many means for real-time monitoring of sewage pipe networks. Among them, ultrasonic flow monitoring, millimeter-wave flow monitoring, water turbidity sensors, water level sensors, water pressure sensors, etc. are common monitoring methods. Among them, as a non-contact measuring instrument, an ultrasonic flowmeter can be used to measure the flow rate of fluids that are not easy to contact and observe, as well as the flow rate of large-diameter pipes. It does not change the flow state of the fluid, does not generate pressure loss, and is easy to install. The media it measures are extensive, and it can measure the flow rate of various liquids and sewage, including strongly corrosive media and non-conductive media.

[0005] Since the sewage flow rate in urban sewage pipes fluctuates greatly, and due to the design requirements of drainage capacity, sewage pipes are usually in a non-full pipe state. When using an ultrasonic flowmeter to measure the sewage flow rate in a non-full pipe state, if the propagation / refraction path of ultrasonic waves passes through the liquid surface of the sewage into the air, it is difficult to obtain the influence of the fluid velocity on the ultrasonic signal because the propagation speed of ultrasonic waves is different in different media. Therefore, it is difficult to implement the measurement of sewage flow rate using an ultrasonic flowmeter in a non-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 an ultrasonic device for monitoring, the accumulated sludge will bury and obstruct the ultrasonic device, and after the accumulated sludge blocks the signal transmitting / receiving device, monitoring inside the sewage pipe cannot be carried out. Summary of the Invention

[0006] In view of the shortcomings of the prior art, the present invention provides a pipe network sewage flow monitoring device and supervision system based on wireless communication, which can obtain the flow, water level, sludge deposition height and other information 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, and establish a prediction model through big data analysis 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: A pipe network sewage flow monitoring device based on wireless communication comprises a sewage pipe network detection section installed between sewage pipes, the monitoring device in the sewage pipe network detection section sends monitoring information to a signal receiving device on the ground through a wireless network, the monitoring device comprises 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 with the sliding ring component to drive it to move; and further comprises a refraction component arranged on the fixed ring component and An ultrasonic transmitting 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 transmitting component and the ultrasonic receiving component to synchronously move circumferentially, and making the ultrasonic transmitting 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 positions of the ultrasonic transmitting component and the ultrasonic receiving component are changed so that they extend out of the sludge end surface to transmit 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.

[0008] Furthermore, the fixed ring assembly, the sliding ring assembly and the refraction assembly are connected via a linkage assembly, so that when the sliding ring assembly slides, the refraction assembly is always located in the middle position between the fixed ring assembly and the sliding ring assembly.

[0009] 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 arranged in the first limited space, and the first rotating ring is also provided with a first gear ring 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 arranged in the second limited space, and the second rotating ring is also provided with a second gear ring 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 through the sliding support block.

[0010] Furthermore, the linkage assembly includes a first link group and a second link group which are arranged crosswise, and the middle parts of the first link group and the second link group are rotatably connected to the connection seat. 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 connection seat is fixedly arranged on the refraction assembly; when the sliding ring assembly slides, the refraction assembly is pulled to slide through the first link group, the second link group and the connection seat, and the refraction assembly is always in the middle position between the sliding ring assembly and the fixed ring assembly.

[0011] Furthermore, the first link group includes a first driven rod, a first short rod and a first driving rod which are hinged end to end. The first driven rod is hinged to the fixed ring hinge part, the first driving rod is hinged to the sliding ring hinge part, and the middle position of the first short rod is hinged to the connection seat, and the lengths of the first driven rod and the first driving rod are the same; the second link group includes a second driven rod, a second short rod and a second driving rod which are hinged end to end. The second driven rod is hinged to the fixed ring hinge part, the second driving rod is hinged to the sliding ring hinge part, and the middle position of the second short rod is hinged to the connection seat, and the lengths of the second driven rod and the second driving rod are the same.

[0012] Furthermore, one end of the driving shaft of the rotating motor of the transmission assembly is connected with a transmission gear, and the other end is connected with a fixed ring gear through a second transmission shaft. The transmission gear meshes with a reversing gear, and the reversing gear rotates synchronously with a sliding ring gear through a first transmission shaft; the fixed ring gear is in transmission connection with a first toothed ring, and the sliding ring gear is in transmission connection with a second toothed ring. The rotating motor can drive the fixed ring gear and the sliding ring gear to rotate in opposite directions at the same time, and further can 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 symmetric in spatial position with the refraction assembly as the center.

[0013] Furthermore, one end of the first transmission shaft is slidably connected with a first telescopic sleeve on the side of the reversing gear through a first transmission key, and one end of the driving shaft is slidably connected with a second transmission key on the second transmission shaft through a second telescopic sleeve, so as to change the extension length of the transmission assembly during the movement of the sliding ring assembly.

[0014] Furthermore, the refraction component includes an inner sliding seat located inside the sewage pipe network detection section and an outer sliding seat located outside. The lower part of the inner sliding seat is connected to the reflector assembly through a telescopic component. A lifting screw is also arranged on the reflector assembly. A lifting nut gear located on the outer sliding seat is threadedly connected to the lifting screw. A lifting motor drives the lifting nut gear to rotate. The lifting nut gear meshes with the encoder gear of the encoder. A wireless signal transmitting device is also arranged on the outer sliding seat to transmit the sewage flow information obtained from this sewage pipe network detection section through the wireless signal transmitting device. The lower end face of the middle part of the reflector assembly is a reflection part. Buoyancy blocks are arranged on both sides of the reflection part. After being buoyed by the fluid in the pipeline, the buoyancy blocks can touch the contact switch upward, enabling the reflector assembly to hover at the liquid level position of the fluid in the pipeline.

[0015] The present invention proposes a big data analysis and supervision system for the sewage flow in pipe networks based on wireless communication. Using the above monitoring equipment, it includes a data acquisition module that 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 and sends the monitoring information to the signal receiving device through the wireless signal transmitting device; a data processing module that 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 that uses the ARIMA time series model to evaluate and predict the variation laws of the flow rate, water level, silt height, and water quality in the sewage pipe network; and a warning decision module that trains and learns from the historical data obtained by the data analysis module according to the machine learning algorithm, establishes a prediction model and issues warnings, and formulates countermeasures and optimizes the operation and management of the sewage pipe network.

[0016] Furthermore, the real-time monitoring of the flow rate, water level, and silt deposition height in the sewage pipe network includes using an ultrasonic emission component and an ultrasonic reception component to detect the flow velocity of the sewage; enabling the reflector assembly to hover at the liquid level position of the sewage through the buoyancy blocks on the reflector assembly, thereby obtaining the water level in the pipe network. At the same time, the cross-sectional area of the sewage fluid section is calculated based on the water level, and the sewage flow rate is calculated by multiplying the cross-sectional area by the flow velocity; controlling the rotation motor to start, driving the ultrasonic emission component and the ultrasonic reception component to rotate circumferentially and lift vertically from the bottom of the pipe. When the ultrasonic emission component and the ultrasonic reception component emerge from the silt deposited at the bottom of the pipe, the ultrasonic reception component starts to receive the ultrasonic signal emitted by the ultrasonic emission component. The lifting height of the ultrasonic emission component and the ultrasonic reception component is calculated based on the rotation stroke of the rotation motor, thereby determining the silt height deposited at the bottom of the pipe.

[0017] Compared with the prior art, the present invention provides a sewage flow monitoring device and a big data analysis and supervision system for pipe networks based on wireless communication, having the following beneficial effects: 1. The present invention suspends the refraction component in the sewage level position in the pipeline through the detection section of the sewage pipeline network, so as to ensure that the ultrasonic waves emitted by the ultrasonic wave transmitting component and the ultrasonic wave receiving component are completely transmitted in the sewage, and then the sewage flow detection in the non-full pipe state in the pipeline can be realized.

[0018] 2. While the refraction component of the present invention changes its height, due to the change of the refraction path, the sliding ring component drives the ultrasonic wave receiving component to move. 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 component and the fixed ring component, ensuring that the ultrasonic wave receiving component can receive the ultrasonic wave signal refracted by the reflection component.

[0019] 3. The transmission component of the present invention can simultaneously drive the first rotating ring and the second rotating ring to rotate synchronously in opposite directions, so that the ultrasonic wave transmitting component and the ultrasonic wave receiving component move out of the sludge deposited at the bottom of the pipeline along the circumferential path of the pipeline wall. When the ultrasonic wave receiving component starts to receive the signal of the ultrasonic wave transmitting component, it indicates that the ultrasonic wave transmitting component and the receiving component have just emerged from the sludge deposited at the bottom of the pipeline at this time. By obtaining the rotation stroke of the rotation motor in this process, the lifting height of the ultrasonic wave transmitting component and the receiving component can be obtained, and then the height of the sludge deposited at the bottom of the pipeline can be determined. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the pipeline network sewage flow monitoring device based on wireless communication of the present invention; Figure 2 It is a perspective view of the monitoring device of the present invention; Figure 3 It is a schematic diagram of the pipeline network sewage flow supervision system based on wireless communication of the present invention; Figure 4 It is a schematic diagram of the structure of the fixed ring and the sliding ring component of the present invention; Figure 5 It is a cross-sectional view of the fixed ring and the sliding ring of the present invention; Figure 6 It is a schematic diagram of the ultrasonic wave refraction path of the present invention, where (a) is the refraction path in the low water level state, (b) is the refraction path in the high water level state, (c) is the top view of the refraction path, and (d) is the side view of the refraction path; Figure 7 It is a schematic diagram of the structure of the linkage component when it contracts of the present invention; Figure 8 It is a schematic diagram of the structure of the linkage component when it extends of the present invention; Figure 9 It is a schematic diagram of the structure of the transmission component of the present invention; Figure 10Among them, (A) is Figure 9 an enlarged schematic view of part A in Figure 9 and (B) is an enlarged schematic view of part B in; Figure 11 a structural schematic diagram of the refraction component of the present invention; Figure 12 a cross-sectional view of the reflector component of the present invention; In the figure: the sewage pipe network detection section 100, the baffle 101, the connecting flange 102; the sewage pipe 200; the refraction component 1, the inner sliding seat 11, the outer sliding seat 12, the telescopic component 13, the lifting screw 14, the lifting nut gear 15, the encoder gear 16, the encoder 17, the lifting motor 18, the wireless signal transmitting device 19, the reflector component 10, the reflection part 110, the buoyancy block 120, the contact switch 130; the fixed ring component 2, the fixed ring seat 21, the fixed ring end cover 22, the first rotating ring 23, the first toothed ring 24, the fixed ring hinge part 25; the sliding ring component 3, the sliding ring seat 31, the sliding ring end cover 32, the second rotating ring 33, the second toothed ring 34, the sliding ring hinge part 35, the driving nut seat 36; the linkage component 4, the first link group 41, the first driven rod 411, the first short rod 412, the first driving rod 413, the second link group 42, the second driven rod 421, the second short rod 422, the second driving rod 423, the connecting seat 43; the transmission component 5, the rotating motor 51, the driving shaft 52, the second telescopic sleeve 521, the transmission gear 53, the reversing gear 54, the first telescopic sleeve 541, the first transmission shaft 55, the first transmission key 551, the sliding ring gear 56, the second transmission shaft 57, the second transmission key 571, the fixed ring gear 58; the sliding guide 6, the support rail 61, the sliding support block 62; the sliding drive component 7, the sliding motor 71, the driving screw 72; the ultrasonic transmitting component 8; the ultrasonic receiving component 9; Embodiment

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] The present invention is described in detail below according 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 the monitoring information to the signal receiving device on the ground through the 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 with 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.

[0023] 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 speeds of ultrasonic waves in sewage, air or pipe walls are different. When using ultrasonic waves to measure the flow rate of a 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 ensured. The present invention uses the refraction component 1 to ensure that the ultrasonic wave can be completely and only propagated in the sewage regardless of the height of the sewage water level in the pipe, thereby realizing the sewage flow detection in a non-full pipe state in the pipe.

[0024] According to the attached Figure 4 The fixed ring assembly 2, the sliding ring assembly 3 and the refractive assembly 1 are connected through 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.

[0025] See attached Figure 5, the fixed ring assembly 2 includes a fixed ring base 21 and a fixed ring end cover 22. The fixed ring base 21 and the fixed ring end cover 22 are fixedly connected to form a first limiting space. A first rotating ring 23 is slidably arranged in the first limiting space. A first gear ring 24 and an ultrasonic transmitting component 8 are further arranged on the first rotating ring 23. The sliding ring assembly 3 includes a sliding ring base 31 and a sliding ring end cover 32. The sliding ring base 31 and the sliding ring end cover 32 are fixedly connected to form a second limiting space. A second rotating ring 33 is slidably arranged in the second limiting space. A second gear ring 34 and an ultrasonic receiving component 9 are further arranged on the second rotating ring 33. The output end of a sliding motor 71 of the sliding drive component 7 is connected to a drive screw 72. The drive screw 72 is in transmission connection with the sliding ring assembly 3 through a drive nut seat 36. The upper and lower ends of the sliding ring base 31 are connected to a support guide rail 61 of a sliding guide 6 through sliding support blocks 62.

[0026] According to the attached Figure 7 , the linkage component 4 includes a first link group 41 and a second link group 42 arranged crosswise. The middle parts of the first link group 41 and the second link group 42 are rotatably connected to a connection seat 43. The two ends of the first link group 41 and the second link group 42 are respectively hinged to a fixed ring hinge part 25 on the fixed ring base 21 and a sliding ring hinge part 35 on the sliding ring base 31. The connection seat 43 is fixedly arranged on the refraction component 1. When the sliding ring assembly 3 slides, it pulls the refraction component 1 to slide through the first link group 41, the second link group 42 and the connection seat 43, and makes the refraction component 1 always in the middle position between the sliding ring assembly 3 and the fixed ring assembly 2.

[0027] While changing the height, due to the change of the refraction path, the sliding ring assembly 3 drives the ultrasonic receiving 9 component to move. At the same time, the sliding ring assembly 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 assembly 3 and the fixed ring assembly 2, ensuring that the ultrasonic receiving component 9 can receive the ultrasonic signal refracted by the reflection component 1.

[0028] See the attached Figure 8, the first link group 41 includes a first driven rod 411, a first short rod 412, and a first driving rod 413 that are hinged end to end. The first driven rod 411 is hinged to the fixed ring hinge portion 25, the first driving rod 413 is hinged to the sliding ring hinge portion 35, and the middle position of the first short rod 412 is hinged to the connecting seat 43, and the lengths of the first driven rod 411 and the first driving rod 413 are the same; the second link group 42 includes a second driven rod 421, a second short rod 422, and a second driving rod 423 that are hinged end to end. The second driven rod 421 is hinged to the fixed ring hinge portion 25, the second driving rod 423 is hinged to the sliding ring hinge portion 35, the middle position of the second short rod 412 is hinged to the connecting seat 43, and the lengths of the second driven rod 421 and the second driving rod 423 are the same.

[0029] See the appendix Figure 9 , one end of the drive shaft 52 of the rotation motor 51 of the drive assembly 5 is connected to the drive gear 53, and the other end is connected to the fixed ring gear 58 through the second transmission shaft 57. The drive gear 53 meshes 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 toothed ring 24, and the sliding ring gear 56 is in transmission connection with the second toothed ring 34. By the rotation 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, and then the ultrasonic transmitting assembly 8 and the ultrasonic receiving assembly 9 can be driven to rotate circumferentially in opposite directions, so that the ultrasonic transmitting assembly 8 and the ultrasonic receiving assembly 9 are always symmetric in spatial position with the refraction assembly 1 as the center.

[0030] Combined with the appendix Figure 6 It shows that the ultrasonic transmitting assembly 8 and the ultrasonic receiving assembly 9 are always symmetric in spatial position with the refraction assembly 1 as the center. Since the circumferential movement of the ultrasonic transmitting assembly 8 and the ultrasonic receiving assembly 9 is a synchronous reverse movement, according to Figure 6 c and Figure 6 d, it can be seen that their positions are also always symmetric with the refraction assembly 1 as the center, thus ensuring the refraction path of the ultrasonic wave.

[0031] The drive assembly 5 can drive the first rotating ring 23 and the second rotating ring 33 to rotate synchronously in opposite directions at the same time, and then the ultrasonic transmitting assembly 8 and the ultrasonic receiving assembly 9 are moved out of the sludge deposited at the bottom of the pipeline along the circumferential path of the pipeline wall. When the ultrasonic receiving assembly 9 starts to receive the signal of the ultrasonic transmitting assembly 8, it indicates that the ultrasonic transmitting assembly and the receiving assembly have just emerged from the sludge deposited at the bottom of the pipeline. By obtaining the rotation stroke of the rotation motor 51 during this process, the lifting height of the ultrasonic transmitting assembly and the receiving assembly can be obtained, and then the height of the sludge deposited at the bottom of the pipeline can be determined.

[0032] See the appendix Figure 10, 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 through 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 through a second telescopic sleeve 521, and the extension length of the transmission assembly 5 is changed during the movement of the sliding ring assembly 3.

[0033] According to the attached Figure 11 , the refraction assembly 1 includes an inner sliding seat 11 inside the sewage pipe network detection section 100 and an outer sliding seat 12 outside. The lower part of the inner sliding seat 11 is connected to the reflector assembly 10 through a telescopic assembly 13. A lifting screw 14 is further provided on the reflector assembly 10. A lifting nut gear 15 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 meshes with the encoder gear 16 of the encoder 17. A wireless signal transmitting device 19 is further provided on the outer sliding seat 12, and the sewage flow information obtained from the sewage pipe network detection section 100 is sent through the wireless signal transmitting device 19; The lower end surface of the middle part of the reflector assembly 10 is a reflection part 110. Buoyancy blocks 120 are arranged on both sides of the reflection part 110. After being buoyed by the fluid in the pipeline, the buoyancy blocks 120 can touch the contact switch 130 upward, so that the reflector assembly 10 can hover at the liquid level position of the fluid in the pipeline.

[0034] The present invention proposes a big data analysis and supervision system for the sewage flow in the pipe network based on wireless communication, adopting the above monitoring equipment, including 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; a data processing module, which preprocesses and analyzes the collected data, including data cleaning, outlier processing, 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 rate, water level, silt height and water quality change law of the sewage pipe network; 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 an early warning, formulates countermeasures and optimizes the operation management of the sewage pipe network.

[0035] 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 velocity of the sewage; enabling the reflection plate component 10 to hover at the liquid level position of the sewage through the buoyancy block 120 on the reflection plate component 10, thereby obtaining the water level in the pipe network. At the same time, calculate the cross-sectional area of the sewage fluid section according to the water level, and calculate the flow rate of the sewage by multiplying the cross-sectional area by the flow velocity; control the rotation motor 51 to start, drive the ultrasonic transmitting component 8 and the ultrasonic receiving component 9 to rotate circumferentially from the bottom of the pipe and lift the vertical height. When the ultrasonic transmitting component 8 and the ultrasonic receiving component 9 emerge from the silt deposited at the bottom of the pipe, the ultrasonic receiving component 9 starts to receive the ultrasonic signal emitted by the ultrasonic transmitting component 8. Calculate the lifting height of the ultrasonic transmitting component 8 and the ultrasonic receiving component 9 according to the rotation stroke of the rotation motor 51, and then determine the height of the silt deposited at the bottom of the pipe.

[0036] When determining the liquid level position of the sewage in the pipe, control the reflection plate component 10 to gradually descend from the highest position. When the contact switch 130 receives a signal, determine the hovering height of the reflection plate component 10 through the encoder 17, thereby determining the liquid level position of the sewage in the pipe, and calculate the cross-sectional area of the sewage fluid section according to the liquid level height; control the slip ring component 3 to change the horizontal distance between the ultrasonic transmitting component 8 and the ultrasonic receiving component 9. When the ultrasonic receiving component 9 starts to receive the ultrasonic signal, stop the slip ring component 3, obtain the horizontal position between the ultrasonic transmitting component 8 and the ultrasonic receiving component 9, and the refraction path of the ultrasonic in the sewage fluid can be calculated in combination with the height of the reflection plate component 10; when there is silt deposition in the pipe, rotate the first rotating ring 23 and the second rotating ring 33 to raise the vertical height of the ultrasonic transmitting component 8 and the ultrasonic receiving component 9 and make them emerge from the surface of the deposited sludge. Determine the vertical height of the refraction path according to the height by which the ultrasonic transmitting component 8 and the ultrasonic receiving component 9 are raised and the height of the reflection plate component 10, and recalculate the refraction path of the ultrasonic in combination with the horizontal distance between the ultrasonic transmitting component 8 and the ultrasonic receiving component 9.

[0037] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present 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) sends monitoring information to a signal receiving device on the ground via a wireless network, characterized in that: The monitoring device comprises a refraction component (1) arranged on the upper part of the sewage pipe network detection section (100), and a fixed ring component (2) and a sliding ring component (3) located on both sides of the refraction component (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 the sliding ring assembly (3) to move; It also includes an ultrasonic emitting component (8) disposed on the fixed ring component (2) and capable of circumferential movement, and an ultrasonic receiving component (9) disposed on the sliding ring component (3) and capable of circumferential movement, wherein the transmission component (5) drives the ultrasonic emitting component (8) and the ultrasonic receiving component (9) to synchronously move circumferentially, and ensures that the ultrasonic emitting component (8) and the ultrasonic receiving component (9) are always spatially symmetrical with the refractive 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 transmitting component (8) and the ultrasonic receiving component (9) is changed so that they extend out of the sludge end surface to transmit and receive ultrasonic waves to monitor the sewage flow; The refraction component (1) can control its reflection plate to hover at the sewage liquid level position according to the sewage liquid level position in the sewage pipe network detection section (100).

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 fixed ring assembly (2) comprises 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 transmitting assembly (8) are also arranged on the first rotating ring (23); The sliding ring assembly (3) comprises 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; a second rotating ring (33) is slidably arranged in the second limited space; a second gear ring (34) and an ultrasonic receiving assembly (9) are also arranged on the second rotating ring (33); The output end of the sliding motor (71) of the sliding drive assembly (7) is connected to a driving screw (72), and the driving screw (72) is transmission-connected to the sliding ring assembly (3) via a driving nut seat (36), and the upper and lower ends of the sliding ring seat (31) are connected to the supporting guide rail (61) of the sliding guide member (6) via a sliding support block (62).

4. The pipe network sewage flow monitoring device based on wireless communication according to claim 3 is characterized in that: The linkage assembly (4) comprises a first link group (41) and a second link group (42) which are arranged crosswise, and the middle parts of the first link group (41) and the second link group (42) are rotatably connected to a connecting seat (43), and the two ends of the first link group (41) and the second link group (42) are respectively hinged to a fixed ring hinge part (25) on the fixed ring seat (21) and a 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).

5. The pipe network sewage flow monitoring device based on wireless communication according to claim 4 is characterized in that: The first connecting rod group (41) comprises a first driven rod (411), a first short rod (412), and a first active rod (413) which 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) comprises 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 (412) is hinged to the connecting seat (43); and the second driven rod (421) and the second active rod (423) have the same length.

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

7. The pipe network sewage flow monitoring device based on wireless communication according to claim 6 is characterized in that: One end of the first transmission shaft (55) is slidably connected to a 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 a second transmission key (571) on the second transmission shaft (57) via a second telescopic sleeve (521), so that the extension length of the transmission assembly (5) is changed during the movement of the sliding ring assembly (3).

8. The pipe network sewage flow monitoring device based on wireless communication according to claim 7 is characterized in that: The refraction component (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 component (10) below via a telescopic component (13); the reflection plate component (10) is also 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); and a wireless signal transmitting device (19) is also 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 part of the reflective plate assembly (10) is a reflective portion (110), and buoyancy blocks (120) are arranged 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.

9. A pipe network sewage flow monitoring system based on wireless communication, using the monitoring device according to any one of claims 1 to 8, characterized in that: It comprises a data acquisition module, which monitors the flow rate, water level and sludge 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, 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, 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.

10. The pipe network sewage flow monitoring system according to claim 9, characterized in that: The real-time monitoring of the flow rate, water level and sludge 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 surface of the sewage, thereby obtaining the water level in the pipe network, and 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 the cross-sectional area multiplied by the flow velocity; The rotating motor (51) is controlled to start, driving the ultrasonic transmitting component (8) and the ultrasonic receiving component (9) to rotate circumferentially and rise vertically from the bottom of the pipeline. When the ultrasonic transmitting component (8) and the ultrasonic receiving component (9) emerge from the sludge deposited at the bottom of the pipeline, the ultrasonic receiving component (9) begins to receive the ultrasonic signal emitted by the ultrasonic transmitting component (8). The elevation 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 height of the sludge deposited at the bottom of the pipeline.

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