A Distributed Inspection Method for Water Supply Pipelines

Abstract

This invention relates to the field of water supply network inspection technology, specifically a distributed inspection method for water supply pipelines. First, inspection blocks are established and inspection devices are deployed. These devices can indicate the physical locations of each inspection target within the inspection block, collect and transmit water pipeline status data, and communicate collaboratively with the central management platform. Second, inspection personnel locate the inspection devices within the inspection block using handheld devices. Third, inspection personnel locate each inspection target based on the physical location information marked on the inspection device. Next, inspection personnel perform inspection tasks on each target. Finally, the inspection device acquires the status data of the inspection targets, processes it, and sends it to the central management platform to determine the completion rate of the inspection tasks. The advantages of this invention are: improved scalability of water pipeline inspection services, enhanced performance and reliability of multiple stages of water pipeline inspection, support for multi-source data access in water pipeline inspection, improved efficiency of water pipeline inspection work, and enhanced intelligence.

Description

Technical Field

[0001] This invention relates to the field of water supply network inspection technology, specifically a distributed inspection method for water supply pipelines. Background Technology

[0002] As a crucial component of urban infrastructure, the safe and stable operation of urban water supply networks is of great significance to urban life and economic development. However, traditional inspection methods often suffer from low efficiency, high missed inspection rates, and inability to monitor in real time when dealing with the inspection and management of the existing vast underground water supply pipelines, making it difficult to meet the needs of modern urban water supply network inspection.

[0003] Traditional water supply inspections typically involve patrolling the water supply pipelines and their ancillary facilities along the pipeline's direction, often with a time-based inspection cycle covering the entire network year-round. However, with urban development, water supply inspections urgently require comprehensive, efficient, and real-time methods. Timely acquisition of network status information is crucial for ensuring the safe and stable operation of the water supply network.

[0004] In recent years, QR code inspections and check-in inspections with built-in sensors have become common applications. These methods have advantages such as real-time acquisition of inspection record data and the movement trajectory of inspection personnel. However, when faced with the existing massive urban municipal water supply network and the actual needs of urban digital transformation, these digital inspection methods are somewhat simplistic. They only digitize inspection records but do not completely digitize the production method of inspection business, and cannot meet the needs of digital technology scenarios in smart cities.

[0005] On the other hand, with the advancement of IoT technology applications in urban water supply, the acquisition of pipeline network status "data" is constantly developing, and the digitalization process is rapidly evolving. Urban water supply networks are continuously introducing various sensing devices, perception technologies, and digital transmission technologies. IoT technology requires massive data processing and rapid response; relying on single hardware facilities to solve single production needs is clearly insufficient to meet the demands of urban digital scenarios. Furthermore, the various IoT devices installed in the actual physical space are often susceptible to the influence of signal transmission and municipal road maintenance conditions, consistently facing the challenge of not being able to penetrate every location within the pipeline. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a distributed inspection method for water pipelines, so as to realize comprehensive, efficient and real-time inspection of water supply networks.

[0007] To achieve the above objectives, a distributed inspection method for water pipelines is designed, as follows:

[0008] S1. Deploy inspection devices in a distributed manner to establish independent inspection blocks. The inspection devices include physical points for indicating the locations of each inspection target in the identification blocks within the independent inspection blocks, a functional module for collecting and sending water pipeline status data, a transmission module for collaborative communication with the central management platform, and an indicator device.

[0009] S2. Inspection personnel use handheld devices to locate the inspection equipment within the inspection area;

[0010] S3. The inspection personnel locate each inspection target based on the physical location information of each inspection target marked on the inspection device;

[0011] S4. Inspection personnel perform inspection tasks for each inspection target;

[0012] S5. The inspection device acquires the status data sent by the metering devices of each inspection target valve, processes it, and sends it to the central management platform to determine the completion rate of the inspection task.

[0013] The present invention also has the following preferred technical solutions:

[0014] 1. Several sensors and data acquisition devices are installed on the water supply network to send the collected data to the inspection device, and the results processed by the inspection device are transmitted to the central management platform for unified scheduling and analysis.

[0015] 2. The method distributes the inspection workload of the entire water supply network to various inspection areas.

[0016] 3. The method utilizes a unified deployment of inspection devices on one side of the curb line of urban municipal roads, with multiple inspection devices forming an independent inspection block.

[0017] 4. The method selects facilities and equipment that are large in scale, easily identifiable, and at a suitable distance as reference points, installs inspection devices at fixed points, and establishes independent inspection blocks.

[0018] 5. The inspection device stores and associates pipeline network data nearby, including valve location and pipe location.

[0019] 6. The inspection device includes a top cover and a base. A circular indicator can be installed on the top cover to record indicator information. The base is equipped with an electronic equipment compartment, a battery compartment and an indicator compartment, which can be connected in series with two adjacent indicator devices.

[0020] 7. The specific steps of the method S2 are as follows: Two inspection personnel each hold two handheld devices. The two handheld devices use the Bluetooth AOA algorithm to locate the distance and relative angle between them. Then, based on these two handheld devices, they search for the active RFID signal emitted by the inspection device. After receiving the RFID signal, the two devices can calculate the distance of the RFID chip based on RSSI, that is, the signal strength. Then, triangulation is performed based on the distance collected by each of the two devices and the relative position of the two devices.

[0021] Compared with the prior art, the advantages of this invention are:

[0022] 1. Improve the scalability of inspection operations

[0023] In the digital transformation of urban water supply, the number of devices using IoT technology may grow exponentially. Faced with so many terminal devices, a single server or computing resources cannot meet the required processing capacity. Distributed technology can add or remove edge acquisition and analysis devices according to the needs of inspection operations. The system automatically identifies the added or removed devices and automatically distributes part of the acquisition and analysis workload to these devices located at the edge of the pipeline network, reducing the workload of the central platform and thus achieving dynamic horizontal scaling.

[0024] 2. Enhance the performance and reliability of multiple components.

[0025] The Internet of Things (IoT) places stringent demands on response speed, which traditional single servers struggle to meet. Water supply network inspection utilizes distributed technology, leveraging the computing resources of multiple edge devices simultaneously to enhance system computing and communication performance. Furthermore, if a computer fails, other nodes can automatically take over through load balancing, ensuring system reliability.

[0026] 3. Meets the requirements for multi-source data access

[0027] Water supply pipelines involve numerous data sources within the Internet of Things (IoT), encompassing a wide variety of sensor units and devices. Traditional single servers struggle to handle such a large volume of data streams simultaneously, leading to inefficiency. Distributed technology, however, can distribute data processing across multiple nodes, allowing for allocation and storage based on the source data. This reduces the burden on individual nodes and enables optimization based on specific needs.

[0028] 4. Improve work efficiency

[0029] Distributed technologies can improve work efficiency. Distributing tasks across multiple nodes for processing and computation can shorten task completion time. Furthermore, distributed servers can allocate tasks based on the characteristics of different nodes, ensuring tasks are distributed as evenly as possible and improving the overall system response speed.

[0030] 5. Intelligence

[0031] Distributed inspection technology can record and analyze historical and real-time data such as the status of the water supply network and inspection operations monitored at each inspection point. It combines more accurate data with traditional management experience, reduces unnecessary on-site operations, and makes the inspection work more intelligent. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of the inspection device's top cover and base working together;

[0033] Figure 2 This is a top view of the top cover of the inspection device without the circular indicator sign installed;

[0034] Figure 3 This is a bottom view of the inspection device;

[0035] Figure 4 This is a top view of the top cover portion of the inspection device on which the circular indicator sign is installed;

[0036] Figure 5 This is a left view of the inspection device;

[0037] Figure 6 This is a schematic diagram of the inspection device in series configuration;

[0038] Figure 7 This is a top view of the circular sign;

[0039] Figure 8 This is a schematic diagram of the valve meter at the inspection target location;

[0040] Figure 9 This is a schematic diagram of the valve meter at the inspection target location;

[0041] Figure 10 This is a schematic diagram illustrating the method by which the inspection personnel locate the inspection targets and inspection signs.

[0042] In the diagram: 1. Top cover; 1.1 Circular indicator; 2.1 Circular indicator mounting position; 2.2 Large circular hole; 2.3 Small circular hole; 4. Base; 4.1 Electronic equipment compartment; 4.2 Battery compartment; 4.3 Indicator compartment; 4.4 Screw hole; 4.5 Drain hole; 4.6 Square notch; 4.7 Connecting plate; 4.8 T-shaped extension plate; 4.9 Rectangular cavity; 5.1 Wiring port; 6.1 Protrusion; 7.1 Valve attributes; 7.2 Valve position; 7.3 Valve diameter; 7.4 Valve distance; 8. Movable module; 8.1 Connecting base; 8.2 Rotating body; 8.3 Permanent magnet; 9. Fixed module; 9.1 L-shaped connecting plate; 9.2 Sensing probe; 9.3 Valve body; 10.1 Maintenance personnel; 10.2 Triangulation positioning method; 10.3 Maintenance target. Detailed Implementation

[0043] The present invention will be further described below with reference to specific embodiments. The present invention provides a distributed inspection method for water pipelines, the specific method of which is as follows:

[0044] The inspection workload of the entire water supply network is distributed to various inspection blocks. Inspection devices are deployed in a decentralized manner in the inspection area to establish independent inspection blocks. Inspection devices are uniformly deployed on one side of the curb line of urban municipal roads. Multiple inspection devices form an independent inspection block. This inspection device needs to be manufactured.

[0045] The inspection device consists of a top cover (structure 1) and a base (structure 4). For example... Figure 1 , 2 As shown, the top cover 1 has several circular indicator mounting positions 2.1. Each circular indicator mounting position 2.1 includes a large circular hole 2.2 and a small circular hole 2.3, which are concentrically formed. The inner wall of the large circular hole 2.2 is smooth, and the inner wall of the small circular hole 2.3 is provided with internal threads. Several circular indicators 1.1 are provided. Each circular indicator has at least a directional arrow, distance information, and product model on its top surface. The information on the circular indicator 1.1 can be changed as needed. Each circular indicator 1.1 has a connecting stud at its bottom that mates with the small circular hole 2.3 of the circular indicator mounting position 2.1 on the top cover. The circular indicator 1.1 can rotate around the small circular hole 2.3 as the center to control the direction pointed to by the arrow on the circular indicator 1.1 and confirm the specific information.

[0046] like Figure 3The base 4 shown is rectangular, with an electronic equipment compartment 4.1, a battery compartment 4.2, and an indicator compartment 4.3. The base 4 mainly consists of three compartments: two large and one small. The two large compartments are the IoT electronic equipment compartment 4.1 and the battery compartment 4.2, used to house the IoT control device and the power supply battery, respectively. The small compartment is the indicator compartment 4.3, used to house RFID tags and indicator lights. The power supply battery powers the IoT control device and RFID tags. The RFID tags store information, which maintenance personnel can read through terminal devices. The IoT control device can be used for information storage, function control, and IoT electronic control upgrades. The IoT electronic equipment compartment 4.1 has a wiring port 5.1 on one side and a screw hole 4.4 at the bottom for fixing to the ground. The battery compartment 4.2 has a drainage hole 4.5 at the bottom to prevent rainwater or other liquids from damaging internal components. A square notch 4.6 is provided at the top of the partition between the electronic equipment compartment 4.1, the battery compartment 4.2, and the indicator compartment 4.3 for internal wiring to pass through.

[0047] like Figure 1 , 3 As shown, the base 4 has outwardly extending connecting plates 4.7 on both the left and right sides. The connecting plates 4.1 are used to press and fix under the sidewalk bricks. The front side of the base 4 has a T-shaped expansion plate 4.8, which forms two rectangular holes 4.9 with the front end of the base 4. The bottom of the rear side of the base 4 has two protrusions 6.1, which cooperate with the rectangular holes 4.9 at the front end of the base for connecting the front and rear sides of two adjacent water supply network inspection devices in series.

[0048] The circular indicator 1.1 is as follows Figure 7 As shown in the diagram, the valve is printed with information such as 7.1 valve attributes, 7.2 valve location, 7.3 valve diameter, and 7.4 valve distance. Staff members create corresponding circular indicator signs 1.1 based on the actual information of the inspection target.

[0049] After the inspection device is pre-installed, when an inspection task is required, the inspection personnel will use the inspection device to find the inspection target according to the method described.

[0050] like Figure 10As shown, a working group is formed with two inspectors (10.1). Each inspector (10.1) holds two handheld devices. The two handheld devices use the Bluetooth AOA algorithm to determine the distance (10.4) and relative angle (10.5) between them. Then, based on these two handheld devices, they search for the active RFID signal emitted by the inspection device. After receiving the RFID signal, the two devices can calculate the distance of the RFID chip based on the RSSI (signal strength index). Then, based on the distance collected by each device and the relative position of the two devices, triangulation (10.2) is performed to locate the inspection sign (1.1). The inspectors find the inspection target (10.3) location according to the information shown on the inspection sign (1.1).

[0051] Upon reaching the inspection target 10.3, the inspection personnel 10.1 perform inspection operations on each inspection target 10.3. The valve metering device 9 on the inspection target feeds back the motion status information of the detected inspection target components to the inspection device 1.

[0052] The valve meter is specially designed and includes a movable module 1 and a fixed module 2.

[0053] The movable module 8 includes a connecting base 8.1, with a sleeve structure in the middle for connecting a valve adapter. The connecting base 8.1 rotates together with the valve when it rotates. A rotating body 8.2, fixed to the connecting base 8.1, is sleeved on the outside of the connecting base 8.1. The rotating body 8.2 rotates together with the valve adapter. Six permanent magnets 8.3 are arranged circumferentially on the rotating body 8.2, with the sleeve as the center.

[0054] The fixed module 9 has an L-shaped connecting plate 9.1 on one side, which is connected to the valve body 9.3 on one side and a sensing probe 9.2 on the other side. The sensing probe 9.2 is used to obtain the pulse signal when the permanent magnet 8.3 passes by directly above.

[0055] When maintenance personnel rotate the valve, the valve adapter rotates accordingly. The connecting base 8.1, which mates with the valve adapter, and the rotating body 8.2, which is fixedly connected to the sleeve of the connecting base 8.1, also rotate with the valve adapter. The six permanent magnets 8.3 on the rotating body 8.2 can be numbered 1-6. As the rotating body 8.2 rotates, the corresponding permanent magnets 8.3 (numbered 1-6) pass sequentially through the sensing probe 9.2 connected to one side of the fixed module 9. The sensing probe 9.2 measures the pulse signals generated by the permanent magnets 8.3 as they rotate and identifies their serial numbers.

[0056] When the sensor probe 9.2 detects that the permanent magnets 8.3 are arranged in ascending order, the valve rotates clockwise; conversely, when the sensor probe 9.2 detects that the permanent magnets 8.3 are arranged in descending order, the valve rotates counterclockwise.

[0057] When the sensor probe 9.2 detects a pulse signal from one permanent magnet 8.3, it indicates that the valve has rotated 60 degrees; when the sensor probe 9.2 detects a pulse signal from two permanent magnets 8.3, it indicates that the valve has rotated 120 degrees; and so on. When the sensor probe 9.2 detects a pulse signal from six permanent magnets 8.3, it indicates that the valve has rotated 360 degrees, which is one full rotation.

[0058] Therefore, by using the pulse signal data obtained from the sensor 9.2, the direction of valve rotation, the angle of valve rotation, and the number of valve rotations can be calculated, thereby monitoring whether the inspection personnel have performed compliant operation behaviors.

[0059] Inspection device 1 acquires the status data sent by the metering devices of each inspection target valve, processes it, and sends it to the central management platform. The back-end center then judges the completion rate of the inspection task based on the information.

[0060] The specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention.

[0061] Example

[0062] In this embodiment, considering the current needs and challenges of digital inspection and data collection for water supply networks, we attempt to adopt the characteristics of distributed systems—"decentralized deployment, independent operation, and centralized management"—to establish a distributed inspection method for water supply pipelines. This method involves deploying inspection workpoints along municipal roads, with each workpoint independently corresponding to an inspection unit within a small block, to obtain digital inspection data on the network status within that block. At the same time, it also takes into account traditional business processes and maintains the current production technology of manual visual inspection.

[0063] Distributed inspection technology for water supply pipelines is an inspection method characterized by "distributed deployment" of inspection work points. It establishes independent inspection blocks, which can "operate independently" through inspection work points. For example, they can indicate the physical location of each inspection target within the block, collect and send status data of the water pipeline, and the inspection work points can be collaboratively shared through a central management platform.

[0064] Distributed inspection of water supply pipelines is an inspection method based on IoT and cloud computing technologies. By installing various sensors and data acquisition devices on the water supply network, the collected data is initially analyzed and processed by edge terminals located at the inspection work points. The processed results are then transmitted to a cloud platform for unified scheduling and analysis. The central management platform can monitor and manage the entire water supply network's operational status, inspection needs, safety, and other aspects. This centralized control method ensures the stability and security of the inspection system, while facilitating management and maintenance by administrators. It maximizes the effectiveness of data, enabling real-time monitoring and early warning of the entire water supply network's operational status, timely detection and resolution of potential problems, improved water supply efficiency and management level, and ultimately, the intelligentization of the entire industry chain, value chain, and all scenarios, becoming an engine for transformation and upgrading.

[0065] In the distributed inspection technology for water supply pipelines, the inspection work points, which are "decentralized," are mainly composed of a set of digital pipeline inspection indicators. The surface of the inspection device is marked with pipeline equipment indicator labels, and the device integrates various digital devices with IoT technologies. The digital indicator devices are installed along the curb of municipal roads, and their surface indicators show the physical location of the main pipeline equipment in the surrounding area. At the same time, the digital indicator devices collect and send real-time pipeline status data according to the pipeline network management requirements.

[0066] Various sensing devices installed between inspection work points, or between inspection work points and the underground pipe network within a block, can work collaboratively using IoT technology. Within a block, these devices can operate relatively independently, installed separately according to various operating conditions. The digital indicator devices at inspection work points utilize IoT technology to digitize the inspection functions of each work point, independent of the larger pipe network system. We distribute the inspection workload of the entire water supply network to various inspection work points, improving multi-tasking capabilities. Through IoT technology in collaborative data acquisition, processing, and transmission at inspection work points, we can currently collaboratively collect, process, and transmit specific information about valve operations, such as "opening time, number of opening cycles, opening speed, and whether reset," fire hydrant status, such as "whether water is cut off, open / closed," and local water supply pressure. The collaborative work of inspection work points achieves efficient system management and data processing. Therefore, in addition to serving as directional labels, inspection points can more clearly indicate the location information of relevant water supply network facilities and equipment. Simultaneously, they can integrate multiple sets of digital tasks, standardizing the digital data acquisition and data transmission functions of inspection points within their respective small areas within the network system. Furthermore, the directional markings on the surface of the digital indicator devices can be integrated with the surrounding environment, taking into account the size and color of the surrounding paving stones, thus becoming a beautiful feature of the city. The indicator devices provide excellent wayfinding, guiding inspection personnel to quickly locate the specific positions of relevant water supply facilities and equipment, improving inspection efficiency and management effectiveness.

[0067] The technical characteristics of adopting the "distributed inspection and control method" are as follows:

[0068] 1. Decentralized Deployment Rules: Inspection work points are uniformly deployed along one side of the curb line of urban municipal roads. Fixed digital indicator devices are installed at these points using facilities and equipment of a specific size, easily identifiable location, and at appropriate distances, such as fire hydrants and streetlights. This provides a more intuitive representation and facilitates arrival and inspection by inspection personnel. This differs from the traditional direct placement approach, especially in areas with complex and continuous underground pipelines. By not directly setting reference points at specific buried pipe locations, it is easier to indicate multiple physical points.

[0069] 2. Install digital indicator devices on the ground to extend some of the signals collected from underground pipe networks to the ground, making it possible to ensure stable power supply and signal transmission for the acquisition and transmission equipment.

[0070] 3. The digital indicator device at each inspection point stores and associates pipeline network data nearby. The associated data is not limited to valve location and pipe location, and can be expanded according to inspection needs. At the same time, the relevant valves and other equipment indicators in the block are clearly expressed.

[0071] 4. Inspection work points inherently possess certain data analysis, storage, and monitoring capabilities. By monitoring data such as pressure, they can, under certain circumstances, help inspection workers reduce their workload, quickly identify problem areas, and improve work efficiency.

[0072] 5. When a fault is recorded at a nearby node during the inspection, the digital indicator device makes a corresponding record. After the fault is resolved, a corresponding fault recovery record is also made. Both can be recorded on-site by punching in the clock, thus ensuring data consistency. This ensures that human behavior controls the state of objects, and the state of objects regulates human behavior.

[0073] 6. It can integrate the functions of various water supply pipeline sensors, and deploy multiple sensors installed in the pipeline or next to the equipment, through the Internet of Things technology, to collect and transmit data at the inspection work points. Its digital indicator device can be equipped with data processing function and transmit data wirelessly, thereby enhancing the collaborative processing capability of the inspection work points according to specific conditions.

[0074] 7. Currently, in the application of information technology to pipelines, digitized drawings often contain discrepancies with the actual on-site locations, and these localized errors are not easily detected. Differences between historical data and data from road reconstruction and expansion also contribute to these fundamental errors. Distributed inspection operations maintain the characteristics of manual visual inspections while applying digital inspection technologies. By enhancing on-site visual inspections through inspection work points, the accuracy and integrity of the pipeline network are improved, enhancing physical space control capabilities and providing more accurate real-time data for effective integration with the digital space.

[0075] 8. Adopt a distributed inspection deployment for water supply pipelines. Each inspection reference point works independently, establishes a work block, and is effectively connected to the cloud platform. The information collected in the block is processed, and the processing results are uploaded to the cloud platform periodically or irregularly according to business needs.

[0076] 9. The physical locations of the inspection work points are promptly connected to the content of the digital space. The timely collection and transmission of effective data generated during the inspection operation, and the digital records formed by the indication function of the physical locations on site, can all be connected to various digital spaces through the application of IoT technology of digital indication devices. The physical space and digital space are combined through a large amount of continuous inspection work point data, which has extremely high data real-time characteristics. In the data processing process, the simulation of data is more realistic.

[0077] Application scenarios of distributed inspection technology for water supply networks: 1. Fault detection and prevention: The distributed sensing system formed by inspection work points can monitor the status of scenes or equipment through data collection and analysis. It can detect faults and make predictions, and then take appropriate measures. For example, the health status of equipment can be analyzed based on the data collected by the distributed system, thereby improving the availability and reliability of the system. 2. IoT edge computing: There are many edge computing scenarios in the Internet of Things (IoT), which require the rapid processing of large amounts of data, often offline. In this case, distributed computing can help IoT applications effectively process large amounts of data and perform some storage even when the signal is weak, reducing response time. Distributed inspection technology for water supply pipelines can achieve real-time monitoring and management of water supply equipment using IoT edge computing. 3. IoT security: Security is a relatively important topic in the IoT. Traditional security mechanisms cannot effectively deal with various security threats in the IoT. Therefore, distributed security mechanisms can analyze and encrypt the raw data collected, rather than transmitting it in a purely data-driven manner, which can help IoT application teams build more secure and reliable systems. Nodes in the distributed inspection technology for water supply pipelines can cooperate with each other to achieve faster and more secure responses. 4. Cloud-Network Coordination: Due to the unique nature of water supply networks, which are primarily located outdoors and underground, data collection is limited by factors such as location, environmental factors, and obstructions, posing a significant challenge to the continuous transmission of ideal real-time signals. Using edge devices to preprocess and store the collected information can greatly reduce data transmission volume and ensure efficient transmission based on network conditions, significantly improving system robustness and enabling effective cloud-network coordination, thus making intelligent management possible. For example, using an intelligent edge system to register and manage edge computing devices in the cloud allows for the extension of cloud applications to the edge or the integration of edge applications with cloud applications.

[0078] One example:

[0079] When using the distributed inspection method for water pipelines described in this invention, it is necessary to divide the inspection area into various sections in advance based on the inspection workload of the entire water supply network. Waterworks staff disperse inspection devices in the inspection area, excavating one side of the curb line of the municipal road and installing the inspection devices at the vacant curb line positions. The extended portion of the base plate of the inspection device is used to press down on the municipal road bricks. Multiple inspection devices can be deployed using this method.

[0080] The inspection device requires special manufacturing; the specific method is as follows:

[0081] Waterworks maintenance personnel create corresponding circular indicator signs 1.1 according to the information to be recorded. These signs are then connected to the small circular hole 2.3 on the top cover 1 via connecting studs, and fixed inside the large circular hole 2.2. The circular indicator sign 1.1 is as follows: Figure 7 As shown in the diagram, the valve is printed with information such as 7.1 valve attributes, 7.2 valve location, 7.3 valve diameter, and 7.4 valve distance. Staff members create corresponding circular indicator signs 1.1 based on the actual information of the inspection target.

[0082] Waterworks maintenance personnel, based on their needs, install the required IoT control equipment in the electronic equipment compartment 4.1 of base 4, place batteries in the battery compartment 4.2 of base 4 to provide power, and place custom-made RFID indicator tags and indicator lights in the indicator compartment 4.3 of base 4. The RFID tags can be programmed with terminal devices to display information such as the physical location and type of the water supply network inspection target. The top cover 1 is then installed on base 4. The connecting plate 4.7 extending from the front end of base 4 is pressed under the sidewalk bricks, embedding the water supply network inspection device into the curb of the municipal road.

[0083] When waterworks inspectors need multiple inspection devices for information marking, a water supply network inspection device can be made in the aforementioned manner. The T-shaped extension plate 4.8 at the front end of the base 4 and the rectangular opening 4.9 at the rear end of the base 4 are configured to form multiple devices connected in series. The aforementioned connecting plate 4.7 is then used to press the device under the sidewalk bricks.

[0084] After the inspection device is pre-installed, when an inspection task is required, the inspection personnel will use the inspection device to find the inspection target according to the method described.

[0085] like Figure 10 As shown, a working group is formed with two inspectors (10.1). Each inspector (10.1) holds two handheld devices. The two handheld devices use the Bluetooth AOA algorithm to determine the distance (10.4) and relative angle (10.5) between them. Then, based on these two handheld devices, they search for the active RFID signal emitted by the inspection device. After receiving the RFID signal, the two devices can calculate the distance of the RFID chip based on the RSSI (signal strength index). Then, based on the distance collected by each device and the relative position of the two devices, triangulation (10.2) is performed to locate the inspection sign (1.1). The inspectors find the inspection target (10.3) location according to the information shown on the inspection sign (1.1).

[0086] Upon reaching the inspection target 10.3, the inspection personnel 10.1 perform inspection operations on each inspection target 10.3. The valve metering device 9 on the inspection target feeds back the motion status information of the detected inspection target components to the inspection device 1.

[0087] The valve meter is specially designed and includes a movable module 1 and a fixed module 2.

[0088] The movable module 8 includes a connecting base 8.1, with a sleeve structure in the middle for connecting a valve adapter. The connecting base 8.1 rotates together with the valve when it rotates. A rotating body 8.2, fixed to the connecting base 8.1, is sleeved on the outside of the connecting base 8.1. The rotating body 8.2 rotates together with the valve adapter. Six permanent magnets 8.3 are arranged circumferentially on the rotating body 8.2, with the sleeve as the center.

[0089] The fixed module 9 has an L-shaped connecting plate 9.1 on one side, which is connected to the valve body 9.3 on one side and a sensing probe 9.2 on the other side. The sensing probe 9.2 is used to obtain the pulse signal when the permanent magnet 8.3 passes by directly above.

[0090] When maintenance personnel rotate the valve, the valve adapter rotates accordingly. The connecting base 8.1, which mates with the valve adapter, and the rotating body 8.2, which is fixedly connected to the sleeve of the connecting base 8.1, also rotate with the valve adapter. The six permanent magnets 8.3 on the rotating body 8.2 can be numbered 1-6. As the rotating body 8.2 rotates, the corresponding permanent magnets 8.3 (numbered 1-6) pass sequentially through the sensing probe 9.2 connected to one side of the fixed module 9. The sensing probe 9.2 measures the pulse signals generated by the permanent magnets 8.3 as they rotate and identifies their serial numbers.

[0091] When the sensor probe 9.2 detects that the permanent magnets 8.3 are arranged in ascending order, the valve rotates clockwise; conversely, when the sensor probe 9.2 detects that the permanent magnets 8.3 are arranged in descending order, the valve rotates counterclockwise.

[0092] When the sensor probe 9.2 detects a pulse signal from one permanent magnet 8.3, it indicates that the valve has rotated 60 degrees; when the sensor probe 9.2 detects a pulse signal from two permanent magnets 8.3, it indicates that the valve has rotated 120 degrees; and so on. When the sensor probe 9.2 detects a pulse signal from six permanent magnets 8.3, it indicates that the valve has rotated 360 degrees, which is one full rotation.

[0093] Therefore, by using the pulse signal data obtained from the sensor 9.2, the direction of valve rotation, the angle of valve rotation, and the number of valve rotations can be calculated, thereby monitoring whether the inspection personnel have performed compliant operation behaviors.

[0094] Inspection device 1 acquires the status data sent by the metering devices of each inspection target valve, processes it, and sends it to the central management platform. The back-end center then judges the completion rate of the inspection task based on the information.

[0095] The above description is merely a specific embodiment of the invention, but the scope of protection of the invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in the invention, based on the technical solutions and novel concepts of the invention, should be covered within the scope of protection of the invention.

Claims

1. A distributed inspection method for water supply pipelines, characterized in that, The method is as follows: S1. Deploy inspection devices in a distributed manner to establish independent inspection blocks. The inspection devices include physical points for indicating the locations of each inspection target in the identification blocks within the independent inspection blocks, a functional module for collecting and sending water pipeline status data, a transmission module for collaborative communication with the central management platform, and an indicator device. S2. Inspection personnel use handheld devices to locate the inspection equipment within the inspection area; S3. The inspection personnel locate each inspection target based on the physical location information of each inspection target marked on the inspection device; S4. Inspection personnel perform inspection tasks for each inspection target; S5. The inspection device acquires the status data sent by each inspection target, processes it, and sends it to the central management platform to determine the completion rate of the inspection task. Several sensors and data acquisition devices are installed on the water supply pipeline. The collected data is sent to the inspection device, and the results processed by the inspection device are transmitted to the central management platform for unified scheduling and analysis. The inspection device stores and associates water supply pipeline data nearby, including valve location and pipe location; The inspection device acquires the status data sent by the metering devices of each inspection target valve, processes it, and sends it to the central management platform. The back-end center then judges the completion rate of the inspection task based on the information.

2. The distributed inspection method for water supply pipelines as described in claim 1, characterized in that, The method distributes the inspection workload of the entire water supply pipeline to various inspection areas.

3. The distributed inspection method for water supply pipelines as described in claim 1, characterized in that, The method utilizes a unified deployment of inspection devices along one side of the curb line of urban municipal roads, with multiple inspection devices forming an independent inspection block.

4. The distributed inspection method for water supply pipelines as described in claim 1, characterized in that, The method selects facilities and equipment that are large in scale, easily identifiable, and at a suitable distance as reference points, installs inspection devices at these points, and establishes independent inspection zones.

5. The distributed inspection method for water supply pipelines as described in claim 1, characterized in that, The inspection device includes a top cover and a base. A circular indicator is installed on the top cover to record the instruction information. The base is equipped with an electronic equipment compartment, a battery compartment and an indicator compartment. Two protrusions are provided on the bottom of one side of the rear of the base, which cooperate with the rectangular hole at the front of the base for connecting two adjacent water supply network inspection devices in series.

6. The distributed inspection method for water supply pipelines as described in claim 1, characterized in that, The specific steps of the method S2 are as follows: Two inspection personnel each hold two handheld devices. The two handheld devices use the Bluetooth AOA algorithm to locate the distance and relative angle between them. Then, based on these two handheld devices, they search for the active RFID signal emitted by the inspection device. After receiving the RFID signal, the two devices can calculate the distance of the RFID chip based on the RSSI, that is, the signal strength. Then, triangulation is performed based on the distance collected by each device and the relative position of the two devices.

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