Intelligent well lid flood discharge system based on machine vision

Abstract

The utility model relates to an intelligent well lid flood discharge system based on machine vision. The intelligent well lid flood discharge system comprises a vision system and an intelligent well lid system. The visual system is used for monitoring the condition around the well lid and controlling the action of the intelligent well lid system; the intelligent well lid system comprises a well base, a well lid and a garbage collecting device, a water inlet is formed in the well lid, one side of the well lid is hinged to the well base, and the well lid is driven by a lid lifting device to be opened and closed; and an air blowing structure is arranged below the water inlet. The intelligent well lid flood discharge system based on the machine vision can be applied to low-lying road sections where water is prone to accumulating, the unattended and automatic and timely flood discharge functions can be achieved, and flood prevention workers do not need to wait for field operation.

Description

Technical Field

[0001] The utility model relates to the technical field of flood discharge, and in particular to an intelligent manhole cover flood discharge system based on machine vision. Background Art

[0002] Nowadays, with the intensification of global climate change and the rapid increase in urban construction density, the flood discharge systems in some urban areas will not be able to meet the current flood discharge needs. Therefore, when facing heavy rainfall, it is difficult to drain the accumulated water in time, which can easily cause urban waterlogging. When dealing with severe water accumulation on the road caused by heavy rain, the drainage and flood control staff of the relevant municipal bureau generally deal with it in the following ways. Generally, the staff will rush to the short-term waterlogging section and first choose to open the manhole cover to speed up the drainage of rainwater and help the accumulated water to drain into the sewer pipe. In some sections without sewer wells or serious siltation, manual pumping will be adopted to pump out the accumulated water with a water pump truck and discharge it into the nearest sewer pipe through the connecting pipe; however, if the pipe is blocked, a high-pressure dredging vehicle will be used to dredge the pipe first to solve the water accumulation problem. Under normal circumstances, opening the sewer manhole cover to quickly drain the road water into the sewer pipe is the most direct and effective way. However, the existing technology lacks the technology of automatic manhole cover flood discharge, so there is an urgent need for an intelligent manhole cover flood discharge system based on machine vision. Summary of the invention

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an intelligent manhole cover flood discharge system based on machine vision.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] An intelligent manhole cover flood discharge system based on machine vision includes a vision system and an intelligent manhole cover system; the vision system is used to monitor the conditions around the manhole cover and control the action of the intelligent manhole cover system; the intelligent manhole cover system includes a manhole seat, a manhole cover and a garbage collection device, the manhole seat is embedded and fixed on the road surface, the manhole cover is provided with a water inlet, one side of the manhole cover is hinged on the manhole seat, and the manhole cover is driven to open and close by a cover lifter; an air blowing structure is provided below the water inlet, the air blowing structure includes an air port seat fixedly connected to the bottom of the manhole cover, a water passage connected to the water inlet is provided at the central axis position of the air port seat, an annular cone surface is provided in the middle of the water passage, a plurality of blowing holes arranged toward the water inlet are arranged at intervals along the circumferential direction on the annular cone surface, an annular air duct connected to each blowing hole is provided inside the air port seat, and the air inlet end of the annular air duct is connected to the air outlet end of the blower through an air pipe.

[0006] Furthermore, the visual system is composed of a visual camera and a control system, and the visual system is installed on a street light pole or an existing truss on the roadside.

[0007] Furthermore, the intelligent manhole cover system also includes a cover-lifting warning device, which sounds an alarm when the manhole cover is in a state of being lifted to release flood water.

[0008] Furthermore, the lid-lifting warning device includes a warning light, a telescopic rod, a guide sleeve, a winch, a winch driving device and a lifting spring. The guide sleeve is fixedly connected to the bottom of the well seat, the telescopic rod and the guide sleeve are slidably connected, the warning light is fixed to the top of the telescopic rod, the bottom of the telescopic rod is connected to the winch by a twisting rope, the winch driving device drives the winch to rotate, and the lifting spring is located inside the telescopic rod, one end of the lifting spring is against the bottom of the warning light, and the other end of the lifting spring is pressed against the bottom of the guide sleeve.

[0009] Furthermore, the cover lifter is an electric lifting cylinder.

[0010] Furthermore, the garbage collection device comprises a collection frame and a fixing frame, the fixing frame is placed on the flange of the well seat, and the collection frame is inserted into the fixing frame.

[0011] The utility model adopts the above technical solution, and has the following beneficial effects: the visual system monitors the situation around the manhole cover, and when an abnormality is found, a command can be directly issued to control the manhole cover to be lifted; the intelligent manhole cover is designed to automatically clean the water inlet to prevent blockage, and can be actively lifted to discharge flood water when the water accumulation is serious. The intelligent manhole cover flood discharge system based on machine sensing can be used in low-lying sections of roads prone to water accumulation, and can realize the function of unattended, automatic and timely flood discharge, without waiting for flood control staff to arrive for operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention is further described in detail below with reference to the accompanying drawings and specific implementations:

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a structural diagram of the intelligent manhole cover system;

[0015] Figure 3 Schematic diagram of lifting the manhole cover for the smart manhole cover system;

[0016] Figure 4 is a schematic diagram of the blowing structure;

[0017] Figure 5 It is a cross-sectional view of the air port seat;

[0018] Figure 6 It is a structural schematic diagram of the cover-lifting warning device;

[0019] Figure 7 It is a structural diagram of a garbage collection device. DETAILED DESCRIPTION

[0020] like Figure 1-7 As shown, the intelligent manhole cover flood discharge system based on machine vision of the utility model includes a vision system 1 and an intelligent manhole cover system 2.

[0021] The visual system 1 is used to monitor the conditions around the manhole cover 22 and control the actions of the intelligent manhole cover system 2. The visual system 1 is composed of a visual camera 11 and a control system 12. The visual system 1 is installed on a street light pole or an existing truss on the roadside.

[0022] The intelligent manhole cover system 2 is designed to automatically clean the water inlet, and can actively open the flood discharge when the water accumulates seriously. The main body of the intelligent manhole cover system 2 is consistent with the ordinary manhole cover 22 and also has a manhole cover 22 and a well seat 21, so the two have strong universal interchangeability. This means that the intelligent manhole cover system 2 can also have the functions of the traditional 6-protection (anti-theft, anti-displacement, anti-falling, anti-bouncing, anti-noise, and anti-settling) manhole cover 22. Adding these functions will not affect the subsequent structural design of the intelligent manhole cover system 2. It can be seen that the intelligent manhole cover system 2 is modified on the traditional manhole cover 22.

[0023] Specifically, the intelligent manhole cover system 2 includes a manhole seat 21, a manhole cover 22 and a garbage collection device 23. The manhole seat 21 is embedded and fixed on the road surface. The manhole cover 22 has a water inlet. One side of the manhole cover 22 is hinged on the manhole seat 21. The manhole cover 22 is driven to open and close by a cover lifter 24; wherein the cover lifter 24 is an electric lifting cylinder. When the water above the manhole cover 22 is deep, the electric lifting cylinder will lift the manhole cover 22 to a certain angle to better drain the accumulated water into the sewer pipe. The bottom of the cylinder barrel of the electric lifting cylinder is connected to the base plate pre-buried on the base layer, and the end of the rod is installed on the manhole cover 22 through a pin shaft. Therefore, when the electric lifting cylinder is running, the manhole cover 22 will rotate around the pin shaft connected to the manhole seat 21 under the action of the cylinder rod, so as to achieve the purpose of lifting and closing the manhole cover 22.

[0024] An air blowing structure 26 is provided below the water inlet of the manhole cover 22. The air blowing structure 26 can blow away the garbage covering the water inlet, and is suitable for the case where there is little water accumulation.

[0025] The blowing structure 26 specifically includes an air port seat 261 fixedly connected to the bottom of the manhole cover 22, and a water passage communicating with the water inlet is provided at the central axis position of the air port seat 261, and a ring-shaped cone is provided in the middle of the water passage, and a plurality of blowing holes 262 arranged toward the water inlet are provided on the ring-shaped cone along the circumferential direction, and an annular air channel 263 communicating with each blowing hole 262 is provided inside the air port seat 261, and the air inlet end of the annular air channel 263 is connected to the air outlet end of the blower 265 through an air pipe 264. The airflow entering the annular air channel 263 will be blown out from the blowing holes 262, thereby blowing away the light covering above the water inlet.

[0026] The intelligent manhole cover system 2 also includes a cover-lifting warning device 25. When the manhole cover 22 is in the state of being lifted up to discharge flood water, the cover-lifting warning device 25 sounds an alarm to serve as a prompt. The cover-lifting warning device 25 includes a warning light 251, a telescopic rod 252, a guide sleeve 253, a winch 254, a winch driving device 255 and a lifting spring 256. The guide sleeve 253 is fixedly connected to the bottom of the manhole seat 21. The telescopic rod 252 is slidably sleeved with the guide sleeve 253. The warning light 251 is fixed to the top of the telescopic rod 252. The bottom of the telescopic rod 252 is connected to the winch 254 through a rope 257. The winch driving device 255 drives the winch 254 to rotate. The lifting spring 256 is located inside the telescopic rod 252. One end of the lifting spring 256 is against the bottom of the warning light 251, and the other end of the lifting spring 256 is pressed against the bottom of the guide sleeve 253. When the manhole cover 22 is in a closed state, the entire cover-lifting warning device 25 will retract below the base layer. At this time, the lifting spring 256 is in a compressed state, and the telescopic rod 252 will tend to extend upward. However, since there is a twisted rope 257 at the bottom that is tautly connected to the winch 254, the telescopic rod 252 will not extend upward. When the warning device needs to be raised, the winch drive device 255 (winch motor) will rotate to release the twisted rope 257, so the telescopic rod 252 and the warning light 251 will extend upward under the action of the lifting spring 256. When retracting, the winch 254 tightens the twisted rope 257, and the telescopic rod 252 compresses the spring downward to retract. A spring telescopic wire is also placed inside the telescopic rod 252 to power the warning light 251.

[0027] The garbage collection device 23 includes a collection frame 231 and a fixing frame 232. The fixing frame 232 is placed on the flange of the well seat 21, and the collection frame 231 is inserted into the fixing frame 232. The upper edge of the collection frame 231 is kept at a distance from the bottom of the well seat 21. When the holes of the collection frame 231 are seriously blocked, the water in the frame can also flow out from the upper suspension to ensure the flood discharge capacity of the intelligent well cover.

[0028] The visual system 1 is used to issue control instructions to the intelligent manhole cover system 2, which is equivalent to the "eyes" of the entire flood discharge system. In the case of slight water accumulation on the road surface, if the visual system 1 detects that the water inlet above the manhole cover 22 is blocked by debris such as plastic and fallen leaves and there are no other traffic participants around the manhole cover 22, it will transmit a start signal to the drive plate of the blowing structure 26, so that the blowing hole 262 has a high-speed airflow blowing towards the water inlet, thereby blowing away the blocked debris. When the blockage is blown away from the water inlet or other traffic participants approach the vicinity of the manhole cover 22, the visual system 1 will send a stop signal and the blowing structure 26 will stop running.

[0029] When the visual system 1 detects that the road section around the manhole cover 22 is seriously flooded and it is predicted that there will be no other traffic participants in the short term, the system will send an operation signal to the warning light 251 of the warning device and the drive control board of the winch motor, and the warning light 251 will flash and rise. The visual system 1 will then send an operation signal to the drive board of the electric cylinder cover-lifting mechanism, and the manhole cover 22 will be lifted to a certain angle. If the visual system 1 detects again that the road surface water has subsided, it will send a recovery signal to the warning device and the electric cylinder cover-lifting mechanism. In addition, the visual system 1 can also detect other unexpected situations of the smart manhole cover and send abnormal alarms to the control center, such as when the manhole cover 22 is damaged, missing, or lifted abnormally.

[0030] There are many target detection algorithms that can be used in the visual system 1. Taking yolov5 as an example, it has the characteristics of small model, fast speed and suitable for mobile terminal deployment. Data is collected for model training in two ways: public data sets and on-site pictures. For each data set picture, it is marked whether there are blockages (such as plastics, fallen leaves, etc.) at the inlet and outlet, whether there are too many blockages that affect the normal operation of the flood discharge system, and whether there are other traffic participants (such as pedestrians, vehicles, etc.) around the manhole cover 22. In addition, since the visual system 1 is greatly affected by lighting conditions, it is necessary to ensure that it can have good detection effects under different lighting conditions, especially on rainy days, when the lighting conditions are often poor, so the selection of data sets should include as many pictures as possible under different weather conditions. The labeled data set is trained to obtain the weight file of the model and tested. If there is obvious lack of detection accuracy, missed detection or false detection, it is necessary to consider improving the model by adding attention mechanisms and other methods.

[0031] The above describes the specific implementation of the present invention, but those skilled in the art should understand that this is only an example. Those skilled in the art can make various changes or modifications to this implementation without departing from the principle and essence of the present invention, but these changes and modifications are all within the scope of protection of the present invention.

Claims

1. Intelligent manhole cover flood discharge system based on machine vision, characterized by: It includes a visual system and an intelligent manhole cover system; the visual system is used to monitor the conditions around the manhole cover and control the action of the intelligent manhole cover system; the intelligent manhole cover system includes a manhole seat, a manhole cover and a garbage collection device, the manhole seat is embedded and fixed on the road surface, the manhole cover is provided with a water inlet, one side of the manhole cover is hinged on the manhole seat, and the manhole cover is driven to open and close by a cover lifter; an air blowing structure is provided below the water inlet, the air blowing structure includes an air port seat fixedly connected to the bottom of the manhole cover, a water passage connected to the water inlet is provided at the central axis position of the air port seat, an annular cone surface is provided in the middle of the water passage, a plurality of blowing holes arranged toward the water inlet are provided on the annular cone surface at intervals along the circumferential direction, an annular air duct connected to each blowing hole is provided inside the air port seat, and the air inlet end of the annular air duct is connected to the air outlet end of the blower through an air pipe.

2. The intelligent manhole cover flood discharge system based on machine vision according to claim 1 is characterized in that: The visual system consists of a visual camera and a control system, and the visual system is installed on a street light pole or an existing truss on the roadside.

3. The intelligent manhole cover flood discharge system based on machine vision according to claim 1 is characterized in that: The intelligent manhole cover system also includes a cover-lifting warning device, which sends out an alarm when the manhole cover is in a state of being lifted up to discharge flood water.

4. The intelligent manhole cover flood discharge system based on machine vision according to claim 3 is characterized in that: The cover-lifting warning device includes a warning light, a telescopic rod, a guide sleeve, a winch, a winch driving device and a lifting spring. The guide sleeve is fixedly connected to the bottom of the well seat, the telescopic rod is slidably sleeved with the guide sleeve, the warning light is fixed to the top of the telescopic rod, the bottom of the telescopic rod is connected to the winch by a twisting rope, the winch driving device drives the winch to rotate, and the lifting spring is located inside the telescopic rod, one end of the lifting spring is against the bottom of the warning light, and the other end of the lifting spring is pressed against the bottom of the guide sleeve.

5. The intelligent manhole cover flood discharge system based on machine vision according to claim 1 is characterized in that: The cover lifter is an electric lifting cylinder.

6. The intelligent manhole cover flood discharge system based on machine vision according to claim 1 is characterized in that: The garbage collecting device comprises a collecting frame and a fixing frame. The fixing frame is placed on the flange of the well seat, and the collecting frame is inserted into the fixing frame.

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