A sewer network and inspection well integrated monitoring system

Abstract

The utility model discloses a kind of integrated monitoring system of sewer network inspection well, including first wireless data transmission module, first wireless data transmission module is electrically connected with liquid level sensor, flow sensor, water quality sensor and inspection well cover displacement monitoring sensor, first wireless data transmission module is connected with second wireless data transmission module by wireless communication protocol, second wireless data transmission module is connected with server by collector, server is connected with display screen.The utility model sets up inspection well cover displacement monitoring sensor, when inspection well cover appears displacement or the condition of lifting, will lead to the pressure data monitored by at least part pressure sensor change, by the terminal equipment comprehensive analysis of remote inspection well cover corresponding multiple pressure sensor monitored pressure data, can judge whether the displacement or lifting condition of inspection well cover appears, to be able to avoid traffic accident caused by inspection well cover anomaly in time.

Description

Technical Field

[0001] This utility model relates to the field of drainage pipe network monitoring technology, specifically an integrated monitoring system for drainage pipe network manholes. Background Technology

[0002] With the development of urbanization in my country, the construction of municipal public facilities has developed rapidly. Now, underground drainage pipes are installed under urban roads. Drainage pipes refer to the system composed of pipes and channels that collect and discharge sewage, wastewater and rainwater and their ancillary facilities, including main pipes, branch pipes and pipes leading to treatment plants. The drainage pipes that are densely distributed throughout the city constitute the drainage pipe network.

[0003] Currently, the inspection of drainage pipe networks mainly relies on regular manual patrols. However, these patrols cannot provide real-time status information, making it difficult to respond promptly to abnormal conditions. Meanwhile, with the rapid advancement of IoT technology, drainage pipe monitoring is gradually incorporating this technology. Specifically, level sensors are installed inside the pipes to monitor changes in water levels, and water quality sensors are used to monitor water quality. The monitored data is then transmitted wirelessly to terminal devices. However, current drainage pipe monitoring generally neglects the monitoring of manhole cover abnormalities. If manhole covers shift or tilt, they can easily cause traffic accidents or lead to children falling in. Utility Model Content

[0004] The purpose of this utility model is to improve and innovate upon the shortcomings and problems existing in the background technology, and to provide an integrated monitoring system for drainage pipe network manholes.

[0005] An integrated monitoring system for drainage pipe networks and manholes includes a first wireless data transmission module. The first wireless data transmission module is electrically connected to a liquid level sensor, a flow sensor, a water quality sensor, and a manhole cover displacement monitoring sensor. The liquid level sensor monitors the liquid level in the drainage pipe network. The flow sensor is installed at least at the input and output ends of the drainage pipe. The water quality sensor monitors the water quality in the drainage pipe network. The manhole cover displacement monitoring sensor monitors the displacement of the corresponding manhole covers in the drainage pipe network. The first wireless data transmission module is connected to a second wireless data transmission module via a wireless communication protocol. The second wireless data transmission module is connected to a server via a data acquisition device. The server is connected to a display screen.

[0006] A further option is that the collector is a Type I collector or a Type II collector.

[0007] A further embodiment is that the manhole cover displacement monitoring sensor includes multiple pressure sensors arranged in a ring array at the upper end of the inspection well. The pressure sensors are installed at the bottom end of a chute, which is located at the upper end of the inspection well and directly below the edge of the manhole cover. A sliding plate is slidably fitted inside the chute, and a telescopic rod is installed on the upper surface of the sliding plate. The top end of the telescopic rod passes through the top wall of the chute and extends to the outside of the inspection well. A spring is sleeved on the telescopic rod, and the two ends of the spring are connected to the sliding plate and the top wall of the chute, respectively.

[0008] A further option is to have at least four pressure sensors.

[0009] A further embodiment is that the first wireless data transmission module is connected to a 220V AC power supply and a battery via a power switching module, and the battery is connected to a solar panel.

[0010] A further embodiment is that the first wireless data transmission module is connected to a power adapter via a power switching module, and the power adapter is connected to an AC power source via a female plug.

[0011] A further embodiment is that the power switching module includes a first diode and a second diode. The emitter of the first diode is connected to the first terminal of a first resistor, the first terminal of a relay coil, and a positive voltage source. The base of the first diode is connected to the second terminal of the first resistor and the first terminal of a photoresistor through a second resistor. The second terminal of the photoresistor is grounded. The collector of the first diode is connected to the first terminals of a third resistor and a fourth resistor. The second terminal of the third resistor is grounded. The second terminal of the fourth resistor is connected to the base of the second diode. The emitter of the second diode is grounded through a fifth resistor. The collector of the second diode is connected to the second terminal of the relay coil. The normally open switch corresponding to the relay is used to connect the battery and the first wireless data transmission module. The normally closed switch corresponding to the relay is used to connect the 220V AC power supply and the first wireless data transmission module.

[0012] A further option is that the first diode is a PNP type diode and the second diode is an NPN type diode.

[0013] Compared with the prior art, the beneficial effects of this utility model are: (1) By setting up a manhole cover displacement monitoring sensor, when the manhole cover is displaced or tilted, the pressure data monitored by at least some pressure sensors will change. By comprehensively analyzing the pressure data monitored by multiple pressure sensors corresponding to the manhole cover through remote terminal equipment, it can be determined whether the manhole cover is displaced or tilted, so as to avoid traffic accidents caused by abnormal manhole covers in a timely manner;

[0014] (2) When the light intensity is sufficient, the power switching module selects the solar panel to supply power to the first wireless data transmission module through the battery; when the light intensity is insufficient, the power switching module selects 220V mains power to supply power to the first wireless data transmission module through the female plug and power adapter, so that different power supplies can be flexibly selected to supply power to the first wireless data transmission module, thereby reducing the use of mains power and reducing the user's electricity expenses. Attached Figure Description

[0015] Figure 1 A schematic diagram of an integrated monitoring system for drainage pipe network manholes provided in this embodiment of the utility model;

[0016] Figure 2 A schematic diagram of the structure of an inspection well equipped with a manhole cover displacement monitoring sensor, provided for an embodiment of this utility model;

[0017] Figure 3 Provided for the embodiments of this utility model Figure 2 A magnified view of the structure at point A in the middle;

[0018] Figure 4 The circuit diagram corresponding to the power switching module provided in the embodiment of this utility model is shown.

[0019] Reference numerals: 1. First wireless data transmission module; 2. Liquid level sensor; 3. Flow sensor; 4. Water quality sensor; 5. Manhole cover displacement monitoring sensor; 501. Inspection well; 502. Manhole cover; 503. Slide; 504. Spring; 505. Telescopic rod; 506. Slide plate; 507. Pressure sensor; 6. Power switching module; 7. Power adapter; 8. Female plug; 9. Battery; 10. Solar panel; 11. Second wireless data transmission module; 12. Data collector; 13. Server; 14. Display screen; R1. First resistor; R2. Second resistor; RL. Photoresistor; Q1. First diode; R3. Third resistor; R4. Fourth resistor; R5. Fifth resistor; Q2. Second diode; K1. Relay. Detailed Implementation

[0020] To make the objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] Please see Figures 1-4 This utility model provides an integrated monitoring system for drainage pipe networks and manholes, including a first wireless data transmission module 1. The first wireless data transmission module 1 is electrically connected to a liquid level sensor 2, a flow sensor 3, a water quality sensor 4, and a manhole cover displacement monitoring sensor 5. The liquid level sensor 2 is used to monitor the liquid level in the drainage pipe network. The flow sensor 3 is installed at least at the input and output ends of the drainage pipe; by comparing the flow changes at the input and output ends of the drainage pipe, it can be determined whether there is a leak in the drainage pipe. The water quality sensor 4 is used to monitor the water quality of the drainage pipe network. The water quality sensor 4 can be a COD water quality monitoring sensor, which monitors the chemical oxygen demand (COD) of the water in the drainage pipe in real time, thereby monitoring the organic pollution status of the water. The manhole cover displacement monitoring sensor 5 is used to monitor the displacement of the manhole covers corresponding to the drainage pipe network, thereby determining whether the manhole covers have shifted or tilted. The first wireless data transmission module 1 is connected to the second wireless data transmission module 11 via a wireless communication protocol. The second wireless data transmission module 11 is connected to the server 13 via a data collector 12, and the server 13 is connected to a display screen 14. The first wireless data transmission module 1 can transmit the received monitoring data to the second wireless data transmission module 11 via a wireless communication protocol. The data collector 12 then forwards the monitoring data received by the second wireless data transmission module 11 to the server 13 and displays it on the display screen 14. This enables real-time remote monitoring of the drainage network's water level, water quality, flow rate, and the displacement of manhole covers. Therefore, a rapid response can be initiated should any abnormalities occur in the drainage network.

[0023] Optionally, the collector 12 is a type I collector or a type II collector.

[0024] Specifically, the manhole cover displacement monitoring sensor 5 includes multiple pressure sensors 507 arranged in a ring array on the upper end of the inspection well 501. The manhole cover 502 is installed on the upper end of the inspection well 501. The pressure sensors 507 are installed at the bottom end of a sliding groove 503. The sliding groove 503 is located on the upper end of the inspection well 501 and directly below the edge of the manhole cover 502. A sliding plate 506 is slidably fitted inside the sliding groove 503. A telescopic rod 505 is installed on the upper surface of the sliding plate 506. The top end of the telescopic rod 505 penetrates the top wall of the sliding groove 503 and extends to the outside of the inspection well 501. A spring 504 is sleeved on the telescopic rod 505. The two ends of the spring 504 are connected to the sliding plate 506 and the top wall of the sliding groove 503, respectively. The number of pressure sensors 507 is at least four. Once the manhole cover 502 is accurately placed on the inspection well 501, the weight of the manhole cover 502 applies pressure to the telescopic rod 505, causing the sliding plate 506 at the bottom of the telescopic rod 505 to press against the surface of the pressure sensor 507. This allows all four pressure sensors 507 to monitor pressure data. The pressure sensors 507 are directly connected to the first wireless data transmission module 1, enabling the first wireless data transmission module 1 to transmit the monitored pressure data. If the manhole cover 502 shifts or tilts, the telescopic rod 505 will extend under the action of the spring 504, and the sliding plate 506 will no longer apply pressure to the pressure sensor 507. At this time, at least some of the pressure sensors 507 will not detect pressure data. Since the pressure sensor 507 is directly connected to the first wireless data transmission module 1, the pressure data monitored by the pressure sensor 507 is sent to the remote terminal device through the first wireless data transmission module 1. The remote terminal device can then comprehensively analyze the pressure data monitored by the multiple pressure sensors 507 corresponding to the manhole cover 502, thereby determining whether the manhole cover 502 has shifted or tilted, which facilitates timely maintenance by staff and helps to avoid traffic accidents caused by abnormal conditions of the manhole cover 502.

[0025] Furthermore, the first wireless data transmission module 1 is connected to a 220V AC power supply and a battery 9 via a power switching module 6. The battery 9 is connected to a solar panel 10. Specifically, the first wireless data transmission module 1 is connected to a power adapter 7 via the power switching module 6. The power adapter 7 is connected to the 220V AC power supply via a female plug 8, and the power adapter 7 and the female plug 8 are plugged together. The power adapter 7 is used to convert 220V AC power into low-voltage DC power. The power adapter 7 internally includes a transformer, a rectifier circuit, a filter circuit, and a voltage regulator circuit. When the light intensity is sufficient, the power switching module 6 selects the solar panel 10 to supply power to the first wireless data transmission module 1 via the battery 9; when the light intensity is insufficient, the power switching module 6 selects 220V AC mains power to supply power to the first wireless data transmission module 1 via the female plug 8 and the power adapter 7. This allows for flexible selection of different power sources to power the first wireless data transmission module 1, thereby reducing the use of AC mains power and lowering the user's electricity costs.

[0026] It should be noted that the wiring terminals on the first wireless data transmission module 1 generally include four ports: 485A, 485B, VCC, and GND. When the first wireless data transmission module 1 is connected to the level sensor 2, flow sensor 3, water quality sensor 4, and pressure sensor via a 4-core shielded cable, the VCC and GND ports of the first wireless data transmission module 1 are simultaneously connected to a low-voltage DC power supply via a 2-core power cable. As mentioned above, the low-voltage DC power supply can be sourced from 220V AC mains power or from the battery 9, enabling the first wireless data transmission module 1 to both receive data monitored by the aforementioned sensors and supply power to them. Of course, in practical applications, a low-voltage DC power supply can also be directly used to power the aforementioned sensors. Those skilled in the art can determine this based on the actual situation, and this utility model does not impose any specific limitations.

[0027] Specifically, the power switching module 6 includes a first diode Q1 and a second diode Q2. The first diode Q1 is a PNP type diode, and the second diode Q2 is an NPN type diode. The emitter of the first diode Q1 is connected to the first terminal of the first resistor R1, the first terminal of the relay K1 coil, and the positive voltage source. The base of the first diode Q1 is connected to the second terminal of the first resistor R1 and the first terminal of the photoresistor RL through the second resistor R2. The second terminal of the photoresistor RL is grounded. The collector of the first diode Q1 is connected to the first terminals of the third resistor R3 and the fourth resistor R4. The second terminal of the third resistor R3 is grounded, and the second terminal of the fourth resistor R4 is connected to the base of the second diode Q2. The emitter of the second diode Q2 is grounded through the fifth resistor R5, and the collector of the second diode Q2 is connected to the second terminal of the relay K1 coil. Specifically, the normally open switch corresponding to relay K1 is used to connect the battery 9 and the first wireless data transmission module 1; the normally closed switch corresponding to relay K1 is used to connect the 220V AC power supply and the first wireless data transmission module 1, that is, the normally closed switch corresponding to relay K1 is used to connect the output terminal of the power adapter 7 and the first wireless data transmission module 1; in other words, the normally open switch corresponding to relay K1 is located in the power supply circuit of the battery 9 and the first wireless data transmission module 1, and the normally closed switch corresponding to relay K1 is located in the power supply circuit of the output terminal of the power adapter 7 and the first wireless data transmission module 1. Because the resistance of the photoresistor RL decreases significantly with increasing light intensity, under sufficient light, the low resistance of RL results in a large voltage drop across the first resistor R1, causing the first diode Q1 to conduct. The conducting diode Q1 pulls up its collector voltage, causing the second diode Q2 to conduct as well. This allows current to flow through the coil of relay K1, closing the normally open switch and opening the normally closed switch, switching the 220V AC mains power supply to the solar panel 10 via the battery 9. Conversely, under insufficient light, the high resistance of RL results in a small voltage drop across the first resistor R1, preventing the first diode Q1 from conducting. In this case, the collector of the first diode Q1 is effectively grounded, preventing the second diode Q2 from conducting. The normally open switch of relay K1 remains open, and the normally closed switch remains closed, allowing the first wireless data transmission module 1 to be powered by the 220V AC mains.

[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the utility model.

[0029] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0030] Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. The reference to "embodiment" herein means that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily indicate the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application. Although embodiments of this utility model have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. An integrated monitoring system for drainage pipe network manholes, characterized in that: The system includes a first wireless data transmission module (1), which is electrically connected to a liquid level sensor (2), a flow sensor (3), a water quality sensor (4), and a manhole cover displacement monitoring sensor (5). The liquid level sensor (2) is used to monitor the liquid level of the drainage network. The flow sensor (3) is installed at least at the input and output ends of the drainage pipe. The water quality sensor (4) is used to monitor the water quality of the drainage network. The manhole cover displacement monitoring sensor (5) is used to monitor the displacement of the manhole cover corresponding to the drainage network. The first wireless data transmission module (1) is connected to a second wireless data transmission module (11) via a wireless communication protocol. The second wireless data transmission module (11) is connected to a server (13) via a collector (12). The server (13) is connected to a display screen (14).

2. The integrated monitoring system for drainage pipe network manholes according to claim 1, characterized in that: The collector (12) is a type I collector or a type II collector.

3. The integrated monitoring system for drainage pipe network manholes according to claim 1, characterized in that: The manhole cover displacement monitoring sensor (5) includes multiple pressure sensors (507) arranged in a ring array on the upper end of the inspection well (501). The pressure sensors (507) are installed at the bottom end of the slide groove (503). The slide groove (503) is opened at the upper end of the inspection well (501) and located directly below the edge of the manhole cover (502). A sliding plate (506) is slidably fitted inside the slide groove (503). A telescopic rod (505) is installed on the upper surface of the sliding plate (506). The top end of the telescopic rod (505) passes through the top wall of the slide groove (503) and extends to the outside of the inspection well (501). A spring (504) is sleeved on the telescopic rod (505). The two ends of the spring (504) are connected to the sliding plate (506) and the top wall of the slide groove (503) respectively.

4. The integrated monitoring system for drainage pipe network manholes according to claim 3, characterized in that: The number of pressure sensors (507) is at least four.

5. The integrated monitoring system for drainage pipe network manholes according to claim 1, characterized in that: The first wireless data transmission module (1) is connected to a 220V AC power supply and a storage battery (9) through a power switching module (6), and the storage battery (9) is connected to a solar panel (10).

6. The integrated monitoring system for drainage pipe network manholes according to claim 5, characterized in that: The first wireless data transmission module (1) is connected to a power adapter (7) via a power switching module (6), and the power adapter (7) is connected to a 220V AC power supply via a female plug (8).

7. The integrated monitoring system for drainage pipe network manholes according to claim 5, characterized in that: The power switching module (6) includes a first diode (Q1) and a second diode (Q2). The emitter of the first diode (Q1) is connected to the first terminal of the first resistor (R1), the first terminal of the relay (K1) coil, and a positive voltage source. The base of the first diode (Q1) is connected to the second terminal of the first resistor (R1) and the first terminal of the photoresistor (RL) through the second resistor (R2). The second terminal of the photoresistor (RL) is grounded. The collector of the first diode (Q1) is connected to the first terminal of the third resistor (R3) and the first terminal of the fourth resistor (R4). The terminals are connected, the second terminal of the third resistor (R3) is grounded, the second terminal of the fourth resistor (R4) is connected to the base of the second diode (Q2), the emitter of the second diode (Q2) is grounded through the fifth resistor (R5), and the collector of the second diode (Q2) is connected to the second terminal of the relay (K1) coil; wherein, the normally open switch corresponding to the relay (K1) is used to conduct the battery (9) and the first wireless data transmission module (1); the normally closed switch corresponding to the relay (K1) is used to conduct the 220V AC power supply and the first wireless data transmission module (1).

8. The integrated monitoring system for drainage pipe network manholes according to claim 7, characterized in that: The first diode (Q1) is a PNP type diode, and the second diode (Q2) is an NPN type diode.

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