A water accumulation detection sensor and monitoring system

Abstract

This invention provides a water accumulation detection sensor and monitoring system, relating to the field of water level monitoring technology. It solves the technical problem that existing water accumulation monitoring sensors are prone to failure when immersed in complex water environments containing mixed rainwater and sewage for extended periods. The device includes a top cover, a housing, a water level monitoring module, and a power supply. The top cover covers the upper end of the housing and is sealed to the housing. An internal cavity is provided within the housing, and both the water level monitoring module and the power supply are installed within this cavity, with the water level monitoring module electrically connected to the power supply. Both the top cover and the housing are made of waterproof and corrosion-resistant materials. The water level monitoring module is equipped with a water accumulation sensing chip, which periodically senses water accumulation information within the trench.

Description

Technical Field

[0001] This invention relates to the field of water level monitoring technology, and in particular to a water accumulation detection sensor and monitoring system, which can be used for water accumulation early warning and intelligent linkage control in places such as office buildings, underground garages, and shopping malls. Background Technology

[0002] With climate change and urban development, extreme weather events are becoming more frequent. Frequent torrential rains cause flooding in roads and basement passageways, greatly inconveniencing people's travel and living conditions, and even threatening lives and property. Urban drainage systems are facing immense pressure. In recent years, the government has attached great importance to urban flood control, introducing a series of policies and measures and increasing investment in urban drainage and flood prevention facilities.

[0003] Timely and accurate monitoring of water accumulation is crucial for providing information to building managers in the area, enabling them to take timely measures for drainage and traffic management, and reducing the inconvenience and losses caused by water accumulation. In practical implementation, accurately selecting suitable water accumulation detection sensors and deploying monitoring points to ensure the convenient and effective operation of the drainage system is a practical and important step. Furthermore, the continuous development of technologies such as the Internet of Things and big data, pushing water accumulation monitoring sensors towards intelligence, integration, and accuracy, is a necessity driven by technological and market demands.

[0004] Currently, most mainstream water accumulation monitoring sensors on the market are contact-based detection solutions, requiring complete immersion in water and relying on the water pressure difference generated by changes in water level to monitor the liquid level. However, these devices are constantly immersed in complex water environments containing rainwater and sewage, making them susceptible to acid and alkali corrosion, impurity accumulation, and microbial adhesion. This results in high equipment failure rates, short service lives, and high maintenance costs, making it difficult to reliably adapt to complex urban water accumulation monitoring scenarios in the long term. Summary of the Invention

[0005] The purpose of this invention is to provide a water accumulation detection sensor and monitoring system to solve the technical problem that existing water accumulation monitoring sensors are prone to failure due to long-term immersion in complex water environments containing mixed rainwater and sewage. The various technical effects of the preferred solutions among the many technical solutions provided by this invention are detailed below.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] The present invention provides a water accumulation detection sensor, including an upper cover, a housing, a water level monitoring module and a power supply, wherein the upper cover covers the upper end of the housing and the upper cover is sealed to the housing, the housing has an internal cavity, the water level monitoring module and the power supply are both installed in the cavity, and the water level monitoring module is electrically connected to the power supply. Both the top cover and the housing are made of waterproof and corrosion-resistant materials. The water level monitoring module is equipped with a water accumulation sensing chip, which is used to periodically sense water accumulation monitoring information in the trench.

[0008] Optionally, the accommodating cavity includes a first accommodating cavity and a second accommodating cavity, the water level monitoring module is installed in the first accommodating cavity, the power supply is installed in the second accommodating cavity, and the first accommodating cavity and the second accommodating cavity are arranged in parallel.

[0009] Optionally, the housing includes a sealing plate, a first accommodating box, and a second accommodating box. Both the first accommodating box and the second accommodating box are fixed on the sealing plate. The sealing plate is provided with a first opening and a second opening respectively. The interior of the first accommodating box and the first opening form the first accommodating cavity, and the interior of the second accommodating box and the second opening form the second accommodating cavity.

[0010] Optionally, the first receiving box has a first slot on both sides, and the second receiving box has a second slot on both sides. The first slot and the second slot correspond one-to-one, and the first slot and the second slot are connected by a flexible strip.

[0011] Optionally, the top cover has a bowl-shaped structure, and the interior of the top cover is provided with reinforcing ribs.

[0012] Optionally, the water level monitoring module includes a Bluetooth communication unit and an intermittent working element. The Bluetooth communication unit is used to transmit the water accumulation monitoring information detected by the water accumulation sensing chip to the outside, and the intermittent working element is used to control the water accumulation sensing chip to start and stop working according to a preset cycle.

[0013] This invention provides a monitoring system comprising a self-organizing lighting network, a drainage ditch cover, a signal transmission device, a cloud platform, a terminal device, and a water accumulation detection sensor. The water accumulation detection sensor is installed on the drainage ditch cover and is used to periodically sense water accumulation monitoring information within the ditch. The water accumulation detection sensor is communicatively connected to the self-organizing lighting network and can transmit the sensed water accumulation monitoring information to the self-organizing lighting network. The self-organizing lighting network is communicatively connected to the signal transmission device, and the signal transmission device is communicatively connected to the cloud platform. The self-organizing lighting network can forward the received water accumulation monitoring information to the cloud platform through the signal transmission device. The cloud platform is communicatively connected to the terminal device and can process and analyze the received water accumulation monitoring information, and can transmit the processing and analysis results to the terminal device.

[0014] Optionally, it also includes a camera monitoring device, which is communicatively connected to the self-organizing lighting network. The camera monitoring device is used to photograph the area where the drainage ditch cover is located and can transmit the photographed information to the self-organizing lighting network. The number of water accumulation detection sensors, the ditch cover plates, and the camera monitoring devices are all multiple, and each of the three is set up in a one-to-one correspondence.

[0015] Optionally, the self-organizing lighting network includes multiple lighting fixtures, each of which is equipped with an integrated Bluetooth and radar module. The lighting fixtures are communicatively connected to each other and form a wireless sensor network. The lighting fixtures are communicatively connected to the water accumulation detection sensor and to the signal transmission device.

[0016] Optionally, it also includes an alarm device, which is communicatively connected to the cloud platform.

[0017] This invention provides a water accumulation detection sensor that employs a sealed design between the top cover and the housing. The core components, such as the water level monitoring module and power supply, are enclosed within a cavity inside the housing. Combined with the waterproof and corrosion-resistant materials used for the top cover and housing, this effectively isolates the sensor from direct erosion by external rainwater, sewage, silt, acidic or alkaline media, and microorganisms. This prevents the core circuitry and sensing components from becoming damp, corroded, scaled, or clogged, improving the sensor's overall environmental adaptability and operational stability. The sealed and integrated arrangement of internal components results in a compact structure with a high level of protection, allowing for long-term adaptation to complex and harsh water accumulation monitoring scenarios such as urban roads, underground passages, and low-lying areas. This reduces the frequency of manual inspections, cleaning, maintenance, and equipment replacement, significantly lowering subsequent maintenance costs and ensuring stable, long-term, 24 / 7 water accumulation monitoring. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a water accumulation detection sensor provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the housing of a water accumulation detection sensor provided in an embodiment of the present invention; Figure 3 This is a top view of a water accumulation detection sensor provided in an embodiment of the present invention; Figure 4 This is a front view of a water accumulation detection sensor provided in an embodiment of the present invention; Figure 5 This is a side view of a water accumulation detection sensor provided in an embodiment of the present invention; Figure 6 This is a cross-sectional view of a water accumulation detection sensor installed on a drainage ditch cover, according to an embodiment of the present invention. Figure 7 This is a cross-sectional view from another angle of a water accumulation detection sensor installed on a drainage ditch cover, according to an embodiment of the present invention. Figure 8 This is a schematic diagram of the structure of a monitoring system provided in an embodiment of the present invention; Figure 9 yes Figure 8 A partial view of A in the middle; Figure 10 yes Figure 8 A partial view of B in the middle.

[0020] 1. Top cover in the picture; 2. Housing; 21. First receiving cavity; 22. Second receiving cavity; 23. Sealing plate; 24. First receiving box; 241. First slot; 25. Second receiving box; 251. Second slot; 3. Water level monitoring module; 4. Power supply; 5. Flexible belt; 6. Self-organizing lighting network; 61. Lighting fixtures; 611. Integrated Bluetooth and radar module; 7. Drainage trench cover; 8. Signal transmission equipment; 9. Cloud platform; 10. Terminal equipment. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0022] In the description of this invention, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not 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 of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0024] The present invention provides a water accumulation detection sensor, including an upper cover 1, a housing 2, a water level monitoring module 3 and a power supply 4. The upper cover 1 covers the upper end of the housing 2 and the upper cover 1 is sealed to the housing 2. The housing 2 has an internal cavity. The water level monitoring module 3 and the power supply 4 are both installed in the cavity and are electrically connected to the power supply 4. The power supply 4 can be a lithium thionyl chloride battery. Both the top cover 1 and the housing 2 are made of waterproof and corrosion-resistant materials. The water level monitoring module 3 is equipped with a water accumulation sensor chip. The water accumulation sensor chip is used to periodically sense the water accumulation monitoring information in the trench. Specifically, the water accumulation sensor chip can be selected to periodically sense the oscillation frequency generated by the water accumulating and impacting the housing 2. When the water in the trench submerges the water accumulation sensor, the flowing water or the ripples generated by the water accumulation will impact the housing 2. Thus, the water accumulation sensor chip can sense the oscillation frequency generated by the water accumulating and impacting the housing 2, which indicates that the water level in the trench exceeds the preset threshold. If the water accumulation sensor chip does not sense the oscillation frequency generated by the water accumulating and impacting the housing 2, it indicates that the water level in the trench does not exceed the preset threshold. This invention provides a water accumulation detection sensor, employing a sealed design between the upper cover 1 and the housing 2. The core components, such as the water level monitoring module 3 and the power supply 4, are enclosed within a cavity inside the housing 2. Combined with the waterproof and corrosion-resistant materials used for the upper cover 1 and housing 2, this effectively isolates the sensor from direct erosion by external rainwater, sewage, silt, acidic or alkaline media, and microorganisms. This prevents the core circuitry and sensing components from becoming damp, corroded, scaled, or clogged, improving the sensor's overall environmental adaptability and operational stability. The sealed and integrated arrangement of internal components results in a compact structure with a high level of protection, allowing for long-term adaptation to complex and harsh water accumulation monitoring scenarios such as urban roads, underground passages, and low-lying areas. This reduces the frequency of manual inspections, cleaning, maintenance, and equipment replacement, significantly lowering subsequent maintenance costs.

[0025] As an optional implementation, the accommodating cavity includes a first accommodating cavity 21 and a second accommodating cavity 22. The water level monitoring module 3 is installed in the first accommodating cavity 21, and the power supply 4 is installed in the second accommodating cavity 22. The first accommodating cavity 21 and the second accommodating cavity 22 are arranged in parallel, so that the water level monitoring module 3 and the power supply 4 can be installed independently in separate areas. The layout is neat and they do not interfere with each other, which facilitates the assembly of components, neat wiring, and subsequent maintenance and disassembly.

[0026] As an optional implementation, the housing 2 includes a sealing plate 23, a first accommodating box 24, and a second accommodating box 25. Both the first accommodating box 24 and the second accommodating box 25 are fixed on the sealing plate 23. The sealing plate 23 is provided with a first opening and a second opening respectively. The interior of the first accommodating box 24 and the first opening form a first accommodating cavity 21, and the interior of the second accommodating box 25 and the second opening form a second accommodating cavity 22. The cavity forming structure is regular and simple to assemble, which is convenient for modular processing and mass production. The sealing plate 23 is provided with an annular sealing protrusion, which can form a sealing structure with the upper cover 1. With the sealing plate 23 as the overall sealing base carrier, the two accommodating boxes are installed separately and fixedly, which can realize the physical partitioning and isolation of the water level monitoring module 3 and the power supply 4. The structure is highly independent, effectively avoiding mutual compression of components and messy interference of circuits, and facilitating assembly, fixation, and subsequent disassembly and maintenance.

[0027] As an optional implementation, the first receiving box 24 has a first slot 241 on both sides, and the second receiving box 25 has a second slot 251 on both sides. The first slot 241 and the second slot 251 correspond one-to-one, and the first slot 241 and the second slot 251 are connected by a flexible strip 5. There can be two flexible strips 5. When installing the water accumulation detection sensor onto the drainage ditch cover 7, the first receiving box 24 is inserted into one through slot on the drainage ditch cover 7, and the second receiving box 25 is inserted into another through slot on the drainage ditch cover 7. The first slot 241 and the second slot 251 are then connected by the flexible strip 5, thereby securing the water accumulation detection sensor to the drainage ditch cover 7. The flexible band 5 can be a cable tie or strap, etc. The connection between the slot and the flexible band 5 is simple and easy to install and remove, which facilitates the maintenance and replacement of the internal water level monitoring module 3 and power supply 4, while not damaging the overall sealing and protection structure of the shell 2, ensuring that the waterproof and corrosion-resistant performance of the equipment is not affected.

[0028] As an optional implementation, the upper cover 1 has a bowl-shaped structure, which fits the upper contour of the shell 2, making it easy to achieve precise circumferential alignment and sealing with the shell 2, increasing the sealing mating surface, and effectively improving the overall waterproof, dustproof, and corrosion-resistant sealing effect, preventing external water vapor, debris, and corrosive media from entering the internal cavity; the bowl-shaped structure can guide and unload rainwater flow and splashing water, reducing the direct impact of rainwater and the accumulation of water, reducing the stress load on the shell 2 and the upper cover 1 from the impact of water flow, and improving the structural impact resistance; in addition, the upper cover 1 is provided with internal reinforcing ribs, which can significantly improve the overall structural strength and rigidity of the bowl-shaped upper cover 1, preventing the upper cover 1 from deforming, denting, or cracking due to external pressure, bumps, or long-term wind and rain loads, and maintaining the sealing fit accuracy.

[0029] As an optional implementation, the water level monitoring module 3 includes a Bluetooth communication unit and an intermittent working element. The Bluetooth communication unit transmits the water accumulation monitoring information detected by the water accumulation sensor chip to the outside, enabling long-distance uploading of water accumulation monitoring information without wiring. This facilitates the cloud platform 9 to obtain on-site water accumulation monitoring information in real time, adapting to IoT networking applications and realizing intelligent remote monitoring and control of water accumulation. The intermittent working element controls the water accumulation sensor chip to start and stop working according to a preset cycle, eliminating the need for continuous standby detection throughout the day, reducing the overall power consumption of the sensor, effectively saving power consumption, extending battery life, and reducing the workload of frequent power supply replacements. The intermittent cycle working mode can reduce the wear and tear of the water accumulation sensor chip and circuit during long-term continuous operation, reduce component heating and aging rate, improve the working stability and service life of the water level monitoring module 3, and adapt to outdoor unattended, long-term continuous monitoring application scenarios.

[0030] This invention provides a monitoring system primarily for use in building areas such as office buildings, shopping malls, supermarkets, underground parking garages, factories, schools, and industrial parks. It includes a self-organizing lighting network 6, a drainage ditch cover 7, a signal transmission device 8, a cloud platform 9, terminal equipment 10, and a water accumulation detection sensor. The water accumulation detection sensor is installed on the drainage ditch cover 7, which is flush with the ground level. The sensor periodically senses and monitors water accumulation within the ditch. It is communicatively connected to the self-organizing lighting network 6 and can detect and transmit the detected water accumulation. The monitoring information is transmitted to the self-organizing lighting network 6. Specifically, when the water accumulation detection sensor detects that the water level in the ditch exceeds a preset threshold, it sends water accumulation monitoring information to the self-organizing lighting network 6. The self-organizing lighting network 6 communicates with the signal transmission device 8, which in turn communicates with the cloud platform 9. The self-organizing lighting network 6 forwards the received water accumulation monitoring information to the cloud platform 9 via the signal transmission device 8. The cloud platform 9 communicates with the terminal device 10, processing and analyzing the received water accumulation monitoring information and transmitting the results to the terminal device 10. The signal transmission device 8 can be a 4G gateway Wi-Fi, a network device that converts 4G cellular network signals into Wi-Fi signals (sometimes also including wired Ethernet). The cloud platform 9 can be a SaaS cloud platform. The core function of a SaaS cloud platform is to allow users to use software services on demand via the internet without the need for self-installation, maintenance, or upgrades. It deploys the software in the cloud, and users can use it simply by logging in through a browser or client, which greatly reduces the threshold and cost of use; the terminal device 10 can be a PC / APP terminal, that is, a computer, mobile phone, tablet or other visual device, that is, a 4G gateway Wi-Fi to receive information sent by the lighting fixture Bluetooth MESH network and upload it to the SaaS cloud platform; after receiving the information, the SaaS cloud platform analyzes the data and quickly transmits the warning and handling plan instructions to the terminal device 10 based on the calculation results; after receiving the processing information from the SaaS cloud platform, it directly displays it to the regional manager through the visual screen or SMS.

[0031] As an optional implementation, the system also includes video monitoring equipment and alarm equipment. The video monitoring equipment is communicatively connected to the self-organizing lighting network 6. It is used to capture images of the area where the drainage ditch cover 7 is located and transmits the captured information to the self-organizing lighting network 6. Multiple water accumulation sensors, drainage ditch covers 7, and video monitoring equipment are used, and each is configured in a one-to-one correspondence. When the water accumulation sensor transmits the detected water accumulation monitoring information to the cloud platform 9, the cloud platform 9 further verifies the accuracy of the monitoring results by checking the video information captured by the corresponding video monitoring equipment. The alarm equipment is communicatively connected to the cloud platform 9. When the cloud platform 9 confirms that the water accumulation exceeds a preset threshold, it simultaneously sends an alarm signal to the alarm equipment, causing the alarm equipment to emit a warning sound or warning light to alert staff.

[0032] As an optional implementation, the self-organizing lighting network 6 includes multiple lighting fixtures 61, each equipped with a Bluetooth and radar integrated module 611. The lighting fixtures 61 communicate with each other to form a wireless sensor network. Each lighting fixture 61 communicates with a water accumulation detection sensor and a signal transmission device 8. Each lighting fixture 61 is a transceiver sensor, and they communicate with each other. Furthermore, each lighting fixture 61 can receive messages from other lighting fixtures equipped with Bluetooth and radar integrated modules 611, or messages from lighting fixtures equipped with Bluetooth communication units. Thus, the lighting fixtures 61 form a wireless sensor network, transmitting information to the cloud platform 9 for processing via the signal transmission device 8. The types of lighting fixtures 61 used in the self-organizing lighting network 6 are extensive, including: LED T8 tubes, downlights / flat panel lights, industrial and mining lights, tunnel lights, light strips, streetlights, high-mast lights, rail lights, advertising light boxes, etc., all of which can form the self-organizing lighting network 6.

[0033] Further water accumulation detection sensors periodically wake up and sample every minute according to a set rhythm. When the water level reaches a set threshold, an alarm signal is immediately sent out via the built-in Bluetooth communication unit. The Bluetooth signal is received by a self-organizing lighting network 6 deployed in the surrounding area. The lighting fixtures 61 have built-in Bluetooth Mesh nodes and radar modules to form a wireless sensor network. The Bluetooth Mesh node is the basic component of the Bluetooth Mesh network, and its main function is to realize many-to-many communication and collaborative control between devices, which is particularly suitable for scenarios requiring large-scale device networking. The wireless sensor network accesses the SaaS cloud platform through a 4G gateway Wi-Fi, and synchronously receives water pump operation status data, water accumulation site video monitoring images, etc., for data aggregation, analysis, and remote information push. User terminal devices 10 (PC, mobile APP, or tablet) can view the monitoring status in real time through the cloud platform 9 and receive early warning and handling plan information.

[0034] The features and advantages of this invention are: 1. The structural design is compatible with standard trench cover 7. Its structure allows for quick installation and disassembly without tools, reducing deployment and maintenance costs.

[0035] 2. It uses Bluetooth Low Energy (BLE) technology and is designed with a timed wake-up mechanism, allowing it to operate continuously for several years powered by a coin cell battery or lithium-ion battery; 3. Information transmission utilizes a Bluetooth Mesh self-organizing network built from existing building lighting fixtures. This innovative implementation requires no additional communication infrastructure deployment and enables ubiquitous sensing where "where there are lights, there is a network." 4. Supports integration with cloud platforms, enabling remote monitoring, automatic alarms, and multi-terminal information push, thus improving emergency response efficiency; 5. Low-cost application: This feature makes the overall system construction cost significantly lower than that of traditional buried monitoring solutions, making it suitable for large-scale application in office buildings, shopping malls, schools, parks and other scenarios. 6. Simple structure and bright colors: This design utilizes a simplified structure to directly detect approaching flooding, allowing for direct installation onto the drainage ditch cover 7. Its bright appearance clearly indicates the installation location, making it easy to identify and locate.

[0036] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A water-accumulation detecting sensor characterized by comprising: It includes a top cover (1), a housing (2), a water level monitoring module (3), and a power supply (4), wherein, The upper cover (1) covers the upper end of the housing (2) and the upper cover (1) is sealed to the housing (2). The housing (2) has an accommodating cavity inside. The water level monitoring module (3) and the power supply (4) are both installed in the accommodating cavity, and the water level monitoring module (3) is electrically connected to the power supply (4). Both the top cover (1) and the shell (2) are made of waterproof and corrosion-resistant materials. The water level monitoring module (3) is equipped with a water accumulation sensing chip, which is used to periodically sense the water accumulation monitoring information in the trench.

2. The water accumulation detection sensor according to claim 1, wherein The accommodating cavity includes a first accommodating cavity (21) and a second accommodating cavity (22). The water level monitoring module (3) is installed in the first accommodating cavity (21), and the power supply (4) is installed in the second accommodating cavity (22). The first accommodating cavity (21) and the second accommodating cavity (22) are arranged in parallel.

3. The water accumulation detection sensor according to claim 2, characterized in that, The housing (2) includes a sealing plate (23), a first accommodating box (24) and a second accommodating box (25). The first accommodating box (24) and the second accommodating box (25) are both fixed on the sealing plate (23). The sealing plate (23) is provided with a first opening and a second opening. The interior of the first accommodating box (24) and the first opening form the first accommodating cavity (21). The interior of the second accommodating box (25) and the second opening form the second accommodating cavity (22).

4. The water accumulation detection sensor according to claim 3, characterized in that, The first receiving box (24) has a first card slot (241) on both sides, and the second receiving box (25) has a second card slot (251) on both sides. The first card slot (241) and the second card slot (251) correspond one-to-one, and the first card slot (241) and the second card slot (251) are connected by a flexible strip (5).

5. The water accumulation detection sensor according to claim 1, characterized in that, The upper cover (1) has a bowl-shaped structure, and the interior of the upper cover (1) is provided with reinforcing ribs.

6. The water accumulation detection sensor according to claim 1, characterized in that, The water level monitoring module (3) includes a Bluetooth communication unit and an intermittent working element. The Bluetooth communication unit is used to transmit the water accumulation monitoring information detected by the water accumulation sensing chip to the outside. The intermittent working element is used to control the water accumulation sensing chip to start and stop working according to a preset cycle.

7. A monitoring system, characterized in that, The system includes a self-organizing lighting network (6), a drainage ditch cover (7), a signal transmission device (8), a cloud platform (9), a terminal device (10), and a water accumulation detection sensor as described in any one of claims 1-6. The water accumulation detection sensor is installed on the drainage ditch cover (7) and is used to periodically sense water accumulation monitoring information in the ditch. The water accumulation detection sensor is communicatively connected to the self-organizing lighting network (6) and can transmit the sensed water accumulation monitoring information to the self-organizing lighting network (6). The self-organizing lighting network (6) is communicatively connected to the signal transmission device (8), and the signal transmission device (8) is communicatively connected to the cloud platform (9). The self-organizing lighting network (6) can forward the received water accumulation monitoring information to the cloud platform (9) through the signal transmission device (8). The cloud platform (9) is communicatively connected to the terminal device (10). The cloud platform (9) can process and analyze the received water accumulation monitoring information and transmit the processing and analysis results to the terminal device (10).

8. The monitoring system according to claim 7, characterized in that, It also includes a camera monitoring device, which is communicatively connected to the self-organizing lighting network (6). The camera monitoring device is used to take pictures of the area where the drainage ditch cover (7) is located and can transmit the shooting information to the self-organizing lighting network (6). The number of water accumulation detection sensors, the drainage ditch cover (7) and the camera monitoring device are all multiple and are set up in a one-to-one correspondence.

9. The monitoring system according to claim 7, characterized in that, The self-organizing lighting network (6) includes multiple lighting fixtures (61), each of which is equipped with a Bluetooth and radar integrated module (611). The lighting fixtures (61) communicate with each other and form a wireless sensor network. The lighting fixtures (61) communicate with the water accumulation detection sensor and the signal transmission device (8).

10. The monitoring system according to claim 7, characterized in that, It also includes an alarm device, which is communicatively connected to the cloud platform (9).

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