Well lid safety monitoring system and method in urban road

Abstract

The invention discloses a well lid safety monitoring system and method in an urban road. The system comprises a sensor module, a well lid state module and a judgment module. The method comprises the steps that sensors are arranged, ultrasonic sensors are started by sensing water flow, and the well lid state is collected; a well lid type database is established, and a plurality of different databases are arranged in the database and are divided into a standard well lid database and an abnormal well lid database; the manhole cover type database is called according to the collected manhole cover state, the manhole cover state is calibrated through the controller, and the accurate manhole cover damage position is obtained. The well lid maintenance and management mode can be improved, statistics, positioning and monitoring are conducted on well lids by means of electronic informatization, and daily maintenance is conducted on the well lids through data processing, alarming, related equipment, devices, systems and the like; the exposure time after the well lid is damaged is shortened, the safety risk of passing vehicles and pedestrians is reduced, and the traffic safety of urban roads is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of monitoring equipment, and in particular to a system and method for monitoring the safety of manhole covers in urban roads. Background Art

[0002] In urban roads, due to the need for the construction of pipelines such as electricity, water supply and sewage, a large number of inspection wells and manhole covers are set up on the roads. The well-built manhole covers are often damaged or lost due to external forces. The loss and damage of manhole covers on the road have formed new road safety hazards, which have brought great safety risks to passing vehicles and pedestrians. It is extremely important to promptly discover and repair the damaged manhole covers. At present, there is no dedicated person to carry out safety maintenance on the manhole covers, which are only carried out in the road maintenance. The discovery of manhole cover damage mainly depends on the daily patrols of the road management department and the traffic management department; after discovery, they are reported to the road management department for repair; such part-time patrols discover manhole cover damage, which takes a long time, and the risk points on the road exist for a long time, which often leads to safety accidents for passing vehicles and pedestrians.

[0003] Prior art 1, Chinese patent, application number 202411354561.1, relates to the technical field of manhole cover health status analysis, and discloses a manhole cover health status analysis system and method based on distributed sensors, including a manhole cover data collection module, a manhole cover data analysis module and a manhole cover health status assessment module, the manhole cover data collection module includes a manhole cover internal illumination data collection unit, a manhole cover pressure data collection unit and a well liquid level height collection unit, and the manhole cover data analysis module includes an illumination data analysis unit, a manhole cover pressure data analysis unit and a well liquid level analysis unit. The system analyzes the initial damage of the manhole cover by analyzing the illumination of the interior of the manhole cover and whether it is subjected to a pressure exceeding its own bearing capacity, and analyzes and calculates the liquid level inside the manhole cover on rainy days and non-rainy days to determine whether the manhole cover is blocked. Although a comprehensive analysis of the health status of all situations is performed at the same time, and whether maintenance is required is determined based on the health status; however, the system structure is complex and the operation is cumbersome, resulting in low efficiency in the maintenance and management of the manhole cover.

[0004] Prior art 2, Chinese patent, application number 202410722644.5 provides an online monitoring device for pipe wells based on the Internet of Things, which involves the field of infrastructure and is applied to pipe wells containing well bodies. The online monitoring device for pipe wells includes: a manhole cover; a first detection device, which is arranged on the manhole cover and includes a displacement detection module; a second detection device, which is arranged on the well body and includes a gas monitoring module; a communication module, which is arranged on the manhole cover and connected to the first detection device and the second detection device; a power supply module, which is arranged on the manhole cover and connected to the communication module, the first detection device and the second detection device. Although the technical solution can take into account the detection of manhole cover displacement on the basis of gas monitoring in the well and improve the stability of manhole cover displacement detection; however, the relevant structure of the manhole cover is relatively simple, and the degree of intelligence is low, which makes the manhole cover monitoring efficiency low.

[0005] Prior art three, Chinese patent, application number 202410672035.3, involves the field of intelligent monitoring technology, which specifically discloses a manhole cover intelligent monitoring system and method for smart cities, which uses artificial intelligence technology based on deep learning to analyze the monitoring images of manhole covers, extract the visible light visual features of manhole covers, and at the same time, combine the monitoring parameters such as the displacement, tilt, underground water level and light intensity of the manhole cover to perform multi-dimensional data representation of the real-time state of the manhole cover, thereby realizing intelligent monitoring and early warning of the manhole cover state. In this way, the safety hazards of the manhole cover can be discovered in time, and early warning information can be issued so that the city management department can deal with it in time, although it improves management efficiency and reduces management costs; however, artificial intelligence needs to analyze a large number of images, which reduces the efficiency of monitoring and makes the cost too high.

[0006] At present, the existing technologies 1, 2 and 3 have the problems of low efficiency in the maintenance and management mode of manhole covers, low efficiency in manhole cover monitoring and high cost. In order to solve the above problems, the present invention provides a manhole cover safety monitoring system and method in urban roads; it can improve the maintenance and management mode of manhole covers, use electronic information technology to count, locate and monitor manhole covers; perform daily maintenance of manhole covers through data processing, alarm, related equipment, devices, systems, etc.; reduce the exposure time of manhole covers after damage, reduce the safety risks of passing vehicles and pedestrians, and improve the safety of urban road traffic. Summary of the invention

[0007] The main purpose of the present invention is to provide a system and method for monitoring the safety of manhole covers in urban roads, so as to solve the problems in the prior art of low efficiency of manhole cover maintenance and management mode, low efficiency of manhole cover monitoring and high cost.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A system for monitoring the safety of manhole covers in urban roads, comprising:

[0010] The sensor module is used to establish a manhole cover type database, deploy a number of ultrasonic sensors at the bottom and on the manhole cover, and initialize the ultrasonic sensors; deploy a water flow monitoring device at the bottom of the inspection well to monitor the water flow at the bottom and start the ultrasonic sensor;

[0011] Among them, the manhole cover type database includes a standard manhole cover type database and an abnormal manhole cover type database; the abnormal manhole cover type database includes manhole cover problems such as manhole cover displacement, manhole cover abnormal noise, manhole cover bulge, manhole cover sinking, manhole cover missing and manhole cover damage;

[0012] The manhole cover status module is used to receive the high-frequency ultrasonic pulses and reflected signals of the ultrasonic waves on the manhole cover, and convert the high-frequency ultrasonic pulses and reflected signals into electrical signals; pre-process the electrical signals, compare them with the established standard database, and obtain the manhole cover status; and input the manhole cover status into the controller;

[0013] Among them, the manhole cover status includes standard manhole cover type and abnormal manhole cover type;

[0014] The judgment module is used for the controller to judge according to the state of the manhole cover. If it is judged to be an abnormal manhole cover type, the judgment result is calibrated with the data of different damage types to obtain the damage type of the manhole cover; the damage type of the manhole cover is transmitted to the cloud platform and sent to the road management department and the traffic management department.

[0015] As a further improvement of the present invention, the sensor module comprises:

[0016] The manhole cover statistics submodule is used to collect the location coordinates of manhole covers on urban roads, mark the type and depth of the manholes, and input the collected manhole cover location coordinates, manhole type and manhole depth data into the manhole cover management system;

[0017] The manhole cover type database submodule is used for the manhole cover management system to collect manhole cover related information according to the input manhole cover position coordinates, inspection well type and inspection well depth data; analyze the collected manhole cover related parameters, extract manhole cover features, use them to build a manhole cover type database, and transmit the manhole cover features to the manhole cover type database;

[0018] Among them, the information related to the manhole cover includes the basic attributes of the manhole cover and the historical maintenance status; the basic attributes include size, material and number, etc.; the historical maintenance status includes maintenance time and maintenance reason, etc.;

[0019] The self-starter module is used to deploy several ultrasonic sensors at the bottom and on the manhole cover, initialize the ultrasonic sensors, and set the parameters of the ultrasonic sensors; deploy a water flow monitoring device at the bottom of the inspection well to monitor the water flow at the bottom and start the ultrasonic sensor;

[0020] The parameters of the ultrasonic sensor include the operating frequency of the ultrasonic sensor, the time difference between adjusting the transmission and reception of the signal, and other parameters.

[0021] As a further improvement of the present invention, the manhole cover type database submodule includes:

[0022] The information collection unit is used to perform preprocessing operations such as noise removal and size calibration on the collected manhole cover related parameters; extract features from the preprocessed data; and output the extracted manhole cover features to the manhole cover management system;

[0023] A manhole cover type database unit is used to construct a manhole cover type database, and to construct a characteristic value statistics subunit, a standard information data subunit and various abnormal information data subunits in the manhole cover type database; the manhole cover features are classified and input into the characteristic value statistics subunit;

[0024] The characteristic value statistical unit is used to analyze the characteristics of the classified manhole covers, summarize the manhole covers according to the analysis results, and obtain standard data information of the manhole covers; the standard information is input into the standard information data unit.

[0025] As a further improvement of the present invention, the self-promoter module comprises:

[0026] An initialization unit is used to arrange a plurality of ultrasonic sensors at the bottom and on the manhole cover, initialize the ultrasonic sensors, and set parameters such as the working mode and measurement range of the ultrasonic sensors;

[0027] The start unit is used to inspect the water flow monitoring device at the bottom of the well. When water flow is detected, a start signal is sent to the ultrasonic sensor in the specified area. The ultrasonic sensor in the specified area receives the start signal and starts to emit high-frequency ultrasonic pulses.

[0028] The acquisition unit is used to transmit high-frequency ultrasonic pulses to the manhole cover, which propagate through the surface of the manhole cover. If it encounters the internal structure or defects of the manhole cover, it will generate reflection; the same ultrasonic sensor will receive the reflected echo signal; and send the reflected echo signal to the manhole cover management system.

[0029] As a further improvement of the present invention, the manhole cover status module includes:

[0030] A conversion submodule, used for receiving high-frequency ultrasonic pulses and reflected signals of ultrasonic waves on the manhole cover, and converting the high-frequency ultrasonic pulses and reflected signals into electrical signals;

[0031] The processing submodule is used to amplify and remove noise from the electrical signal, shape and compare the electrical signal, and transmit the processed electrical signal to the manhole cover management system;

[0032] The status submodule is used to compare the processed electrical signal with the standard database to obtain the status of the manhole cover.

[0033] As a further improvement of the present invention, the state submodule includes:

[0034] The comparison unit is used to retrieve the standard manhole cover data in the standard database according to the preprocessed electrical signal; retrieve the standard information of the manhole cover in the standard data unit according to the positioning of the ultrasonic sensor; and retrieve the historical data of the manhole cover;

[0035] A judgment unit, used to compare the standard information of the manhole cover with the real-time manhole cover data, set a comparison state threshold, and judge the state of the manhole cover according to the comparison state threshold;

[0036] The output unit is used to send abnormal manhole cover state information to the controller if the manhole cover state is an abnormal manhole cover state.

[0037] As a further improvement of the present invention, the judging module includes:

[0038] The controller submodule is used to judge the state of the manhole cover according to the controller pattern, retrieve the standard manhole cover database, compare it with the manhole cover, set the comparison threshold, and obtain the manhole cover state according to the comparison threshold; if it is greater than the comparison threshold, it is judged as an abnormal manhole cover type;

[0039] The calibration submodule is used to process the abnormal manhole cover type, retrieve the damage type database, and calibrate the processing result with the damage type database; obtain the manhole cover damage type according to the calibration result, and send the damage type to the cloud platform;

[0040] The processing submodule is used to enable the cloud platform to analyze the damage type, preset the risk level of the manhole cover, and derive the risk level of the manhole cover based on the analysis level; set the risk level standard, if it is less than the risk level data, it will be sent to the road management department and the traffic management department; if it is greater than the risk level standard, the traffic management department will be reminded to carry out temporary processing, and the road management department will replace and repair the manhole cover in time.

[0041] As a further improvement of the present invention, the calibration submodule includes:

[0042] The first retrieval unit is used to process the abnormal manhole cover type, initiate a request to retrieve the damage type database, and determine the database strategy for the target damage type data; retrieve the damage type database to determine whether there is restriction condition data in the abnormal manhole cover;

[0043] Among them, the database strategy includes paging call strategy and non-paging call strategy;

[0044] A second retrieval unit is used to determine whether the number of rows returned in the restriction condition data is greater than a preset threshold if there is restriction condition data in the retrieved abnormal manhole cover type, and if it is less than the preset threshold, retrieve the first abnormal manhole cover type database; if it is greater than the preset threshold, retrieve the second abnormal manhole cover type database;

[0045] The first abnormal manhole cover type database includes data such as manhole cover tilt and displacement; the second abnormal manhole cover type database includes data such as manhole cover damage type;

[0046] The calibration unit is used to retrieve various abnormal manhole cover databases and perform calibration and evaluation on the abnormal manhole cover types to obtain the final manhole cover damage type, and send the manhole cover damage type to the cloud platform.

[0047] As a further improvement of the present invention, the processing submodule includes:

[0048] The level analysis unit is used to enable the cloud platform to perform risk category analysis based on the final manhole cover received and set the risk category level;

[0049] The risk levels include Class I manhole cover risk level, Class II manhole cover risk level, Class III manhole cover risk level and Class IV manhole cover risk level; Class I manhole cover risk level includes missing, damaged, manhole cover displacement, and no anti-fall device; Class II manhole cover risk level includes insufficient bearing capacity, manhole cover bulge, manhole cover sinking, etc.; Class III manhole cover risk level includes excessive cover seat difference, abnormal sound of manhole cover, damaged road surface around the manhole, etc.; Class IV safety hazard risks include incorrect manhole cover markings, manhole covers occupying blind paths, etc.;

[0050] The early warning unit is used to match the analysis results with the risk level of the manhole cover, set the corresponding early warning threshold according to the risk level of the manhole cover, set the risk level standard, and if it is less than the risk level data, it will be sent to the road management department and the traffic management department; if it is greater than the risk level standard, the traffic management department will be reminded to make temporary arrangements, and the road management department will replace and repair the manhole cover in time;

[0051] The feedback unit is used to transmit the data after maintenance to the manhole cover standard database, update the status information of the manhole cover, analyze the data after maintenance, and evaluate the life and maintenance cycle of the manhole cover.

[0052] To achieve the above object, the present invention also provides the following technical solutions:

[0053] A method for monitoring the safety of manhole covers in urban roads, comprising:

[0054] Establish a manhole cover type database, deploy several ultrasonic sensors at the bottom and on the manhole cover, and initialize the ultrasonic sensors; deploy a water flow monitoring device at the bottom of the inspection well to monitor the water flow at the bottom and activate the ultrasonic sensors;

[0055] Among them, the manhole cover type database includes a standard manhole cover type database and an abnormal manhole cover type database; the abnormal manhole cover type database includes manhole cover problems such as manhole cover displacement, manhole cover abnormal noise, manhole cover bulge, manhole cover sinking, manhole cover missing and manhole cover damage;

[0056] Receive the high-frequency ultrasonic pulse and reflected signal of the ultrasonic wave on the manhole cover, and convert the high-frequency ultrasonic pulse and reflected signal into an electrical signal; pre-process the electrical signal, compare it with the established standard database, and obtain the state of the manhole cover; input the state of the manhole cover into the controller;

[0057] Among them, the manhole cover status includes standard manhole cover type and abnormal manhole cover type;

[0058] The controller makes a judgment based on the status of the manhole cover. If it is judged to be an abnormal manhole cover type, it calibrates the judgment result with the data of different damage types to obtain the manhole cover damage type; the manhole cover damage type is transmitted to the cloud platform and sent to the road management department and the traffic management department.

[0059] The sensor module of the present invention establishes a standard manhole cover type database and an abnormal manhole cover type database, covering a variety of manhole cover problems, and can accurately determine the problems existing in the manhole cover. Ultrasonic sensors are arranged at the bottom and top of the manhole cover to monitor the state of the manhole cover in real time; wherein the ultrasonic sensor can be replaced by infrared, sensor and other equipment; the ultrasonic sensor is initialized to ensure its normal operation; a water flow monitoring device is arranged at the bottom of the inspection well to monitor the water flow and start the ultrasonic sensor. The manhole cover status module converts high-frequency ultrasonic pulses and reflected signals into electrical signals; pre-processes the electrical signals to ensure data accuracy; compares the pre-processed data with the standard database to obtain the manhole cover status; inputs the manhole cover status into the controller for subsequent judgment. The judgment module determines whether it is abnormal based on the manhole cover status; calibrates the abnormal status to determine the specific damage type; transmits the calibrated data to the cloud platform and sends it to the relevant departments. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Figure 1A schematic diagram of functional modules of an embodiment of a manhole cover safety monitoring system for urban roads according to the present invention;

[0061] Figure 2 A schematic diagram of a sensor module of an embodiment of a manhole cover safety monitoring system for urban roads of the present invention;

[0062] Figure 3 A schematic diagram of a manhole cover type database submodule of an embodiment of a manhole cover safety monitoring system for urban roads of the present invention;

[0063] Figure 4 A schematic diagram of a self-starter module of an embodiment of a manhole cover safety monitoring system for urban roads of the present invention;

[0064] Figure 5 A schematic diagram of a manhole cover status module of an embodiment of a manhole cover safety monitoring system for urban roads of the present invention;

[0065] Figure 6 A schematic diagram of a state submodule of an embodiment of a manhole cover safety monitoring system for urban roads of the present invention;

[0066] Figure 7 A schematic diagram of a judgment module of an embodiment of a manhole cover safety monitoring system for urban roads of the present invention;

[0067] Figure 8 A schematic diagram of a calibration submodule of an embodiment of a manhole cover safety monitoring system for urban roads according to the present invention;

[0068] Fig. 9 A schematic diagram of a second retrieval unit of an embodiment of a manhole cover safety monitoring system for urban roads of the present invention;

[0069] Fig.10 A schematic diagram of a processing submodule of an embodiment of a manhole cover safety monitoring system for urban roads according to the present invention;

[0070] Fig.11 A flowchart of the steps of an embodiment of a method for monitoring safety of manhole covers in urban roads according to the present invention;

[0071] Fig.12 A functional structure diagram of an embodiment of a manhole cover safety monitoring device for urban roads according to the present invention;

[0072] Fig.13 It is a structural schematic diagram of an embodiment of an electronic device of the present invention; Fig.14 It is a schematic structural diagram of an embodiment of the storage medium of the present invention. DETAILED DESCRIPTION

[0073] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0074] The terms "first", "second" and "third" in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first", "second" and "third" can explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. All directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0075] Reference to an "embodiment" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0076] like Figure 1 As shown, this embodiment provides an embodiment of a manhole cover safety monitoring system in an urban road. In this embodiment, the manhole cover safety monitoring system in an urban road specifically includes:

[0077] Sensor module 1 is used to establish a manhole cover type database, deploy a number of ultrasonic sensors at the bottom and on the manhole cover, and initialize the ultrasonic sensors; deploy a water flow monitoring device at the bottom of the inspection well to monitor the water flow at the bottom and start the ultrasonic sensor;

[0078] Among them, the manhole cover type database includes a standard manhole cover type database and an abnormal manhole cover type database; the abnormal manhole cover type database includes manhole cover problems such as manhole cover displacement, manhole cover abnormal noise, manhole cover bulge, manhole cover sinking, manhole cover missing and manhole cover damage;

[0079] The manhole cover status module 2 is used to receive the high-frequency ultrasonic pulses and reflected signals of the ultrasonic waves on the manhole cover, and convert the high-frequency ultrasonic pulses and reflected signals into electrical signals; pre-process the electrical signals, compare them with the established standard database, and obtain the manhole cover status; and input the manhole cover status into the controller;

[0080] Among them, the manhole cover status includes standard manhole cover type and abnormal manhole cover type;

[0081] The judgment module 3 is used for the controller to make a judgment based on the state of the manhole cover. If it is judged to be an abnormal manhole cover type, the judgment result is calibrated with different damage type data to obtain the manhole cover damage type; the manhole cover damage type is transmitted to the cloud platform and sent to the road management department and the traffic management department.

[0082] Preferably, the sensor module 1 of this embodiment establishes a standard manhole cover type database and an abnormal manhole cover type database, covering a variety of manhole cover problems, and can accurately determine the problems existing in the manhole cover. Ultrasonic sensors are arranged at the bottom and top of the manhole cover to monitor the state of the manhole cover in real time; wherein the ultrasonic sensor can be replaced by infrared, sensor and other equipment; the ultrasonic sensor is initialized to ensure its normal operation; a water flow monitoring device is arranged at the bottom of the inspection well to monitor the water flow and start the ultrasonic sensor. The manhole cover status module 2 converts high-frequency ultrasonic pulses and reflected signals into electrical signals; pre-processes the electrical signals to ensure data accuracy; compares the pre-processed data with the standard database to obtain the manhole cover status; inputs the manhole cover status into the controller for subsequent judgment. The judgment module 3 determines whether it is abnormal according to the state of the manhole cover; calibrates the abnormal state to determine the specific damage type; transmits the calibrated data to the cloud platform and sends it to the relevant departments.

[0083] In summary, this embodiment can improve the maintenance and management mode of manhole covers, use electronic information technology to count, locate and monitor manhole covers; perform daily maintenance on manhole covers through data processing, alarms, related equipment, devices and systems, reduce the exposure time of manhole covers after damage, reduce the safety risks of passing vehicles and pedestrians, and improve the safety of urban road traffic.

[0084] Furthermore, if Figure 2 As shown, the sensor module 1 specifically includes:

[0085] The manhole cover statistics submodule 11 is used to collect the manhole cover position coordinates on the urban road, mark the type and depth of the inspection well, and input the collected manhole cover position coordinates, inspection well type and inspection well depth data into the manhole cover management system;

[0086] The manhole cover type database submodule 12 is used for the manhole cover management system to collect manhole cover related information according to the input manhole cover position coordinates, the type of inspection well and the depth data of the inspection well; analyze the collected manhole cover related parameters, extract the manhole cover features, and use them to build a manhole cover type database, and transmit the manhole cover features to the manhole cover type database; wherein the manhole cover related information includes the basic attributes of the manhole cover and the historical maintenance status; the basic attributes include size, material and number, etc.; the historical maintenance status includes maintenance time and maintenance reason, etc.;

[0087] The self-starting submodule 13 is used to deploy a number of ultrasonic sensors at the bottom and on the manhole cover, initialize the ultrasonic sensors, and set the parameters of the ultrasonic sensors; deploy a water flow monitoring device at the bottom of the inspection well to monitor the water flow at the bottom and start the ultrasonic sensor; wherein the parameters of the ultrasonic sensor include the operating frequency of the ultrasonic sensor, the time difference of adjusting the transmission and reception signals, and other parameters.

[0088] Preferably, the manhole cover statistics submodule 11 of the present embodiment collects the position coordinates of the manhole covers in the urban roads, and marks the type and depth of the inspection wells, and inputs these data into the manhole cover management system. The manhole cover type database submodule 12 collects and analyzes the manhole cover related information based on the input manhole cover position coordinates, the type of inspection wells and the depth data of the inspection wells, extracts the manhole cover features, and constructs a manhole cover type database. The self-starting submodule 13 is to arrange ultrasonic sensors at the bottom and on the manhole cover, initialize the ultrasonic sensors, set the parameters of the ultrasonic sensors, and start the ultrasonic sensors when water flow is detected. In summary, the present embodiments together constitute a complete intelligent manhole cover management system, which realizes real-time monitoring, automatic alarm, on-site processing and information feedback of manhole covers, and greatly improves the efficiency and safety of urban manhole cover management.

[0089] Furthermore, if Figure 3 As shown, the manhole cover type database submodule 12 specifically includes:

[0090] The information collection unit 121 is used to perform preprocessing operations such as noise removal and size calibration on the collected manhole cover related parameters; extract features from the preprocessed data; and output the extracted manhole cover features to the manhole cover management system;

[0091] The manhole cover type database unit 122 is used to construct a manhole cover type database, and construct a feature value statistics subunit, a standard information data subunit and various abnormal information data subunits in the manhole cover type database; classify the manhole cover features and input them into the feature value statistics subunit;

[0092] The characteristic value statistical unit 123 is used to analyze the characteristics of the classified manhole covers, summarize the manhole covers according to the analysis results, and obtain standard data information of the manhole covers; and input the standard information into the standard information data unit.

[0093] Preferably, the information collection unit 121 of this embodiment is responsible for preprocessing operations such as noise removal and size calibration of manhole cover related parameters to ensure the accuracy and reliability of the data; it is an important part of data processing, and lays the foundation for subsequent feature extraction and analysis by cleaning and converting raw data; including data preprocessing (such as standardization, normalization, feature selection and extraction) and noise removal and other operations. The manhole cover type database unit is used to construct a manhole cover type database, and a characteristic value statistics subunit, a standard information data subunit, and various abnormal information data subunits are constructed therein; these subunits are used to classify and store manhole cover features to provide support for subsequent data analysis and decision-making; the database is reasonably designed, supports the functions of adding, deleting, modifying and checking manhole cover information, and can be expanded and upgraded according to needs to meet the needs of different engineering projects. The characteristic value statistical unit 123 analyzes the classified manhole cover characteristics, summarizes the manhole covers according to the analysis results, and obtains the standard data information of the manhole covers; these standard data information help improve management efficiency and response speed; through data analysis technology, such as trend analysis and prediction models, help city managers make better maintenance decisions; at the same time, the system supports a real-time monitoring interface for city managers to view the status of manhole covers, and supports automatic alarm functions. In summary, this embodiment realizes real-time monitoring and management of the status of manhole covers through steps such as data collection, preprocessing, feature extraction, classification storage and data analysis, and improves the intelligent level of urban management.

[0094] Furthermore, if Figure 4 As shown, the self-starter module 13 specifically includes:

[0095] The initialization unit 131 is used to arrange a plurality of ultrasonic sensors at the bottom and on the manhole cover, initialize the ultrasonic sensors, and set parameters such as the working mode and measurement range of the ultrasonic sensors;

[0096] The start unit 132 is used to inspect the water flow monitoring device arranged at the bottom of the well. When water flow is detected, a start signal is sent to the ultrasonic sensor in the designated area. The ultrasonic sensor in the designated area receives the start signal and starts to emit high-frequency ultrasonic pulses.

[0097] The acquisition unit 133 is used to transmit high-frequency ultrasonic pulses to the manhole cover, which propagate through the surface of the manhole cover. If it encounters the internal structure or defects of the manhole cover, it will generate reflection; the same ultrasonic sensor will receive the reflected echo signal; and send the reflected echo signal to the manhole cover management system.

[0098] Preferably, the initialization unit 131 of this embodiment performs initialization settings on the ultrasonic sensors at the bottom and on the manhole cover, including the configuration of parameters such as the working mode and the measurement range; ensuring that the sensor can operate correctly and provide accurate data in subsequent operations; involving comprehensive control of the equipment and data acquisition, and realizing comprehensive control of the sensor through the API, such as equipment initialization, sensor programming and startup, interrupt processing, mode configuration, range setting, etc.; in addition, initialization also includes operations such as setting the pin mode and starting the sensor. The startup unit 132 detects the water flow monitoring device at the bottom of the well, and when it detects the water flow passing through, it sends a startup signal to the ultrasonic sensor in the specified area; after the sensor receives the signal, it starts to send high-frequency ultrasonic pulses for subsequent measurement and analysis; the startup unit 132 uses the water flow monitoring device to trigger the startup of the ultrasonic sensor, ensuring that the sensor is activated only when needed, thereby saving energy and improving the response speed of the system; the design enables the system to automatically start under specific conditions to avoid unnecessary energy consumption. The acquisition unit 133 emits high-frequency ultrasonic pulses to the manhole cover and propagates through the surface of the manhole cover. When encountering the internal structure or defects of the manhole cover, the ultrasonic wave will be reflected, and the reflected echo signal will be received by the same ultrasonic sensor, and these signals will be sent to the manhole cover management system for further processing; it can accurately measure the structure and defects inside the manhole cover; by analyzing the reflected echo signal, it can determine the state of the manhole cover, such as whether there are cracks or other defects; it uses the propagation characteristics of ultrasonic waves in different media to calculate the distance and evaluate the structural integrity through the reflection time difference. In summary, the initialization unit 131, the startup unit 132 and the acquisition unit 133 of this embodiment together constitute a complete manhole cover management system, which realizes real-time monitoring and maintenance of the manhole cover status through precise initialization settings, timely startup response and efficient signal acquisition, and improves the safety and reliability of urban infrastructure.

[0099] Furthermore, if Figure 5 As shown, the manhole cover status module 2 specifically includes:

[0100] The conversion submodule 21 is used to receive the high-frequency ultrasonic pulses and reflected signals of the ultrasonic waves on the manhole cover, and convert the high-frequency ultrasonic pulses and reflected signals into electrical signals;

[0101] The processing submodule 22 is used to amplify and remove noise from the electrical signal, shape and compare the electrical signal, and transmit the processed electrical signal to the manhole cover management system;

[0102] The status submodule 23 is used to compare the processed electrical signal with the standard database to obtain the status of the manhole cover.

[0103] Preferably, the conversion submodule 21 of this embodiment receives the high-frequency ultrasonic pulses on the manhole cover and the reflected signals, and converts the signals into electrical signals; the process is similar to the working principle of the ultrasonic level meter, that is, by emitting high-frequency ultrasonic pulses, when the pulses encounter the surface of the measured medium, they are reflected back, and then received by the transducer and converted into electrical signals. Utilizing the high-frequency characteristics of ultrasound, this embodiment is used in non-destructive testing and obstacle detection, and can provide information about the internal structure of the material. The processing submodule 22 amplifies and denoises the converted electrical signals, and performs shaping and comparison, and finally transmits the processed electrical signals to the manhole cover management system; that is, the original electrical signals are preliminarily processed to facilitate subsequent data analysis and transmission; the processing submodule 22 uses signal amplification and denoising technology to ensure the accuracy and reliability of the signal; including filtering, amplification and other operations to extract useful information and eliminate interference. The state submodule 23 compares the processed electrical signal with the standard database to obtain the state of the manhole cover, that is, to compare the processed signal data with the preset standard or model to determine whether the target signal or substance exists; the state submodule 23 can identify the current state of the manhole cover, such as whether it is intact, whether there is an abnormality, etc., by comparing and analyzing the processed electrical signal. The comparison and analysis usually requires professional software or equipment to implement. In summary, the conversion submodule 21, the processing submodule 22 and the state submodule 23 of this embodiment respectively undertake the important tasks of signal reception, signal processing and state judgment in the manhole cover management system, ensuring the efficient operation and accuracy of the system.

[0104] Furthermore, if Figure 6 As shown, the state submodule 23 specifically includes:

[0105] The comparison unit 231 is used to retrieve the standard manhole cover data in the standard database according to the preprocessed electrical signal; retrieve the standard information of the manhole cover in the standard data unit according to the positioning of the ultrasonic sensor; and retrieve the historical data of the manhole cover;

[0106] The judgment unit 232 is used to compare the standard information of the manhole cover with the real-time manhole cover data, set a comparison state threshold, and judge the state of the manhole cover according to the comparison state threshold;

[0107] The output unit 233 is used to send abnormal manhole cover state information to the controller if the manhole cover state is an abnormal manhole cover state.

[0108] Preferably, the comparison unit 231 of this embodiment retrieves the standard manhole cover data in the standard database, combines the positioning information of the ultrasonic sensor, and retrieves the historical data of the manhole cover to achieve accurate monitoring of the manhole cover status; uses the pre-processed electrical signal to retrieve the standard manhole cover data, and combines the positioning information of the ultrasonic sensor to ensure the accuracy and real-time nature of the data; in addition, by retrieving historical data, the state change trend of the manhole cover can be better analyzed to improve the accuracy of early warning. The judgment unit 232 compares the standard information of the manhole cover with the real-time data, and sets a comparison state threshold, and judges whether the state of the manhole cover is abnormal according to the threshold, so as to timely discover potential safety hazards; by comparing the real-time collected data with the set threshold, an early warning can be issued, providing sufficient time for relevant disposal personnel to eliminate safety hazards; in addition, by reasonably setting the alarm threshold, the possibility of false alarms and missed alarms can be reduced. When the manhole cover status is judged to be abnormal, the output unit 233 sends the abnormal manhole cover status information to the controller so that corresponding emergency measures can be taken; it has an automatic alarm function, can immediately report when the abnormal state of the manhole cover is detected, and supports remote and near-field control and firmware upgrade functions; so that the system can respond to and handle abnormal manhole cover conditions in a timely manner to ensure the safe operation of municipal facilities. In summary, this embodiment constitutes an efficient and intelligent manhole cover management system; through real-time monitoring, data analysis and early warning mechanisms, it improves the information and intelligence level of urban management and lays the foundation for the construction of smart cities.

[0109] Furthermore, if Figure 7 As shown, the judgment module 3 specifically includes:

[0110] The controller submodule 31 is used to judge the state of the manhole cover according to the controller pattern, retrieve the standard manhole cover database, compare it with the manhole cover, set the comparison threshold, and obtain the manhole cover state according to the comparison threshold; if it is greater than the comparison threshold, it is judged as an abnormal manhole cover type;

[0111] The calibration submodule 32 is used to process the abnormal manhole cover type, retrieve the damage type database, and calibrate the processing result with the damage type database; obtain the manhole cover damage type according to the calibration result, and send the damage type to the cloud platform;

[0112] The processing submodule 33 is used to enable the cloud platform to analyze the damage type, preset the risk level of the manhole cover, and derive the risk level of the manhole cover according to the analysis level; set the risk level standard, if it is less than the risk level data, it will be sent to the road management department and the traffic management department; if it is greater than the risk level standard, the traffic management department will be reminded to carry out temporary processing, and the road management department will replace and repair the manhole cover in time.

[0113] Preferably, the controller submodule 31 of this embodiment makes a judgment based on the state of the manhole cover, retrieves the standard manhole cover database, and compares it with the actual manhole cover; by setting a comparison threshold, it determines whether the manhole cover is in a normal state; if the state of the manhole cover exceeds the threshold, it is judged as an abnormal manhole cover type; real-time monitoring is performed using sensor data, and once an abnormal state of the manhole cover is detected (such as tilting, flooding or flipping), an alarm is immediately triggered, and the alarm information is sent to the software system platform, which is convenient for staff to quickly locate and process. The calibration submodule 32 further processes the abnormal manhole cover type, retrieves the damage type database, and calibrates the processing results with the damage type database; according to the calibration results, the specific damage type of the manhole cover is determined, and this information is sent to the cloud platform; by comparing with the damage type database, the accurate identification of the manhole cover damage type is guaranteed, and the results are transmitted to the cloud platform in real time for further analysis and decision-making. The processing submodule 33 analyzes the manhole cover damage type provided by the calibration submodule, presets the risk level of the manhole cover, and derives the risk level of the manhole cover based on the analysis results; then sets the risk level standard, and if the manhole cover risk level is lower than the standard, notifies the road management department and the traffic management department; if the risk level is higher than the standard, reminds the traffic management department to take temporary measures, and the road management department replaces and repairs the manhole cover in time; it has strong data analysis capabilities, can conduct risk assessment based on the manhole cover damage type, and take corresponding emergency measures according to the assessment results; it not only improves the efficiency of emergency response, but also reduces the safety hazards caused by manhole cover problems.

[0114] In summary, this embodiment constitutes a complete intelligent manhole cover management system, which ensures the safety and stability of urban manhole covers through real-time monitoring, data calibration and risk assessment, thereby improving the efficiency and safety of urban management.

[0115] Furthermore, if Figure 8 As shown, the calibration submodule specifically includes:

[0116] The first retrieval unit 321 is used to process the abnormal manhole cover type, initiate a request to retrieve the damage type database, determine the database strategy for the target damage type data, and retrieve the damage type database to determine whether there is restriction condition data in the abnormal manhole cover;

[0117] Among them, the database strategy includes paging call strategy and non-paging call strategy;

[0118] The second retrieval unit 322 is used to determine whether the number of rows returned in the restriction condition data is greater than a preset threshold if there is restriction condition data in the retrieved abnormal manhole cover type, and if it is less than the preset threshold, retrieve the first abnormal manhole cover type database; if it is greater than the preset threshold, retrieve the second abnormal manhole cover type database;

[0119] The first abnormal manhole cover type database includes data such as manhole cover tilt and displacement; the second abnormal manhole cover type database includes data such as manhole cover damage type;

[0120] The calibration unit 323 is used to retrieve various abnormal manhole cover databases and perform calibration and evaluation on the abnormal manhole cover types to obtain the final manhole cover damage type, and send the manhole cover damage type to the cloud platform.

[0121] Preferably, the first retrieval unit 321 of this embodiment initiates a request to retrieve the damage type database and determines the database strategy for the target retrieval of damage type data, thereby effectively managing and processing the data of abnormal manhole cover types. The second retrieval unit 322 determines which abnormal manhole cover type database to retrieve based on whether there is restriction condition data in the abnormal manhole cover type and in combination with a preset threshold, so as to accurately obtain the required manhole cover damage type data; by comparing the number of rows returned with the preset threshold, the appropriate database is dynamically selected for data retrieval. The calibration unit 323 calibrates and evaluates the retrieved various abnormal manhole cover databases with the abnormal manhole cover types, obtains the final manhole cover damage type, and sends the results to the cloud platform.

[0122] In summary, this embodiment constitutes an efficient and accurate manhole cover damage type identification and management system, ensuring the accuracy of data and the stability of the system.

[0123] Furthermore, if Fig. 9 As shown, the second calling unit 322 specifically includes:

[0124] The first abnormal database subunit 3221 is used to extract features from the data of the abnormal manhole cover type, retrieve target retrieved data of the target application from the first abnormal manhole cover database, and determine whether the target retrieved database can match the target database in the whitelist of the preset application;

[0125] The second abnormal database subunit 3222 is used to extract features from the data of the abnormal manhole cover type, retrieve target retrieved data of the target application from the second abnormal manhole cover database, and determine whether the target retrieved database can match the target database in the whitelist of the preset application;

[0126] The processing subunit 3223 is used to determine the damage type status of the manhole cover according to the database retrieval situation, and analyze the manhole cover type status to obtain the final manhole cover damage type.

[0127] Preferably, in the first abnormal database subunit 3221 and the second abnormal database subunit 3222 of this embodiment, in terms of feature extraction and target database matching, the two subunits extract features from the data of abnormal manhole cover types and match them with the corresponding abnormal manhole cover database, thereby determining whether the target retrieved database is in the whitelist of the preset application. The processing subunit 3223 is responsible for analyzing the state of the manhole cover damage type according to the situation of the retrieved database, and deriving the final manhole cover damage type; the process involves multi-dimensional data representation of the manhole cover state, combining the image semantic feature vector and the monitoring parameter encoding vector, classifying and analyzing the manhole cover state, thereby achieving accurate judgment of the manhole cover damage type.

[0128] To sum up, this embodiment improves the automation level of manhole cover detection and management, reduces manual intervention, improves detection efficiency and accuracy, and provides effective technical support for smart city construction.

[0129] Furthermore, if Fig.10 As shown, the processing submodule 33 specifically includes:

[0130] The level analysis unit 331 is used to implement the cloud platform to perform risk category analysis based on the final manhole cover received, and set the risk category level; the risk level includes the first-class manhole cover risk level, the second-class manhole cover risk level, the third-class manhole cover risk level and the fourth-class manhole cover risk level; the first-class manhole cover risk level includes missing, damaged, manhole cover displacement, and no anti-fall device; the second-class manhole cover risk level includes insufficient bearing capacity, manhole cover bulge, manhole cover sinking, etc.; the third-class manhole cover risk level includes excessive cover seat difference, abnormal sound of manhole cover, damaged road surface around the well, etc.; the fourth-class safety hazard risk includes incorrect manhole cover identification, manhole cover occupying the blind path, etc.;

[0131] The early warning unit 332 is used to match the analysis result with the risk level of the manhole cover, set the corresponding early warning threshold according to the risk level of the manhole cover, set the risk level standard, and if it is less than the risk level data, send it to the road management department and the traffic management department; if it is greater than the risk level standard, remind the traffic management department to make temporary treatment, and the road management department to replace and repair the manhole cover in time;

[0132] The feedback unit 333 is used to transmit the data after maintenance to the manhole cover standard database, update the status information of the manhole cover, analyze the data after maintenance, and evaluate the life and maintenance cycle of the manhole cover.

[0133] Preferably, the level analysis unit 331 of this embodiment performs risk category analysis on the manhole cover, and sets the corresponding risk category level according to the analysis result; specifically, the risks of the manhole cover are divided into four categories: Class I manhole cover risk, Class II manhole cover risk, Class III manhole cover risk and Class IV manhole cover risk; by identifying hidden dangers such as missing, damaged, displaced, and no anti-fall device of the manhole cover, the unit can accurately classify the hidden dangers into the corresponding risk level; using intelligent technology, automatically analyze the status information of the manhole cover to reduce the error of human judgment. According to the latest detection data, the risk category level of the manhole cover is updated in real time to ensure the timeliness and accuracy of management. The early warning unit 332 sets the corresponding early warning threshold according to the risk level of the manhole cover, and determines whether action is needed based on these thresholds; matches the analysis results with the risk level of the manhole cover, and sends the data to the road management department and the traffic management department when the risk level of the manhole cover is lower than the set threshold; if it is higher than the threshold, the relevant departments are reminded to take temporary measures; the early warning threshold is dynamically adjusted according to real-time data to ensure the sensitivity and effectiveness of the early warning system; different early warning measures are taken according to different risk levels, such as sending notifications, setting warning signs, etc., to ensure timely response to various risks. The feedback unit 333 transmits the data after maintenance to the manhole cover standard database, updates the status information of the manhole cover, and analyzes the data after maintenance to evaluate the life and maintenance cycle of the manhole cover; through the analysis of the data after maintenance, the service life of the manhole cover and future maintenance needs are evaluated, so as to formulate a more reasonable maintenance plan; through information technology, the real-time update of the manhole cover status information and the scientific evaluation of the maintenance cycle are realized; and decision support based on data analysis is provided to help the management department make more scientific maintenance and replacement decisions. In summary, the present embodiments, through their respective technical functions and features, together constitute an efficient and intelligent manhole cover management system, ensuring the safe operation of urban infrastructure.

[0134] Further, if Fig.11 As shown, this embodiment also provides a method for monitoring the safety of manhole covers in urban roads. In this embodiment, the method for monitoring the safety of manhole covers in urban roads is applied to the system for monitoring the safety of manhole covers in urban roads in the above-mentioned embodiment, and specifically includes the following steps:

[0135] Step S1: Establish a manhole cover type database, arrange a number of ultrasonic sensors at the bottom and on the manhole cover, and initialize the ultrasonic sensors; arrange a water flow monitoring device at the bottom of the inspection well to monitor the water flow at the bottom and start the ultrasonic sensor; wherein the manhole cover type database includes a standard manhole cover type database and an abnormal manhole cover type database; the abnormal manhole cover type database includes manhole cover displacement, abnormal noise, manhole cover bulge, manhole cover subsidence, manhole cover missing, and manhole cover damage and other manhole cover problems;

[0136] Step S2: receiving high-frequency ultrasonic pulses and reflected signals of ultrasonic waves on the manhole cover, converting the high-frequency ultrasonic pulses and reflected signals into electrical signals; preprocessing the electrical signals, comparing them with the established standard database, and obtaining the state of the manhole cover; inputting the state of the manhole cover into the controller; wherein the state of the manhole cover includes a standard manhole cover type and an abnormal manhole cover type;

[0137] Step S3: The controller makes a judgment based on the state of the manhole cover. If it is judged to be an abnormal manhole cover type, the judgment result is calibrated with different damage type data to obtain the manhole cover damage type; the manhole cover damage type is transmitted to the cloud platform and sent to the road management department and the traffic management department.

[0138] Among them, the ultrasonic sensor equation is:

[0139]

[0140] Where: t represents the total time from the ultrasonic wave being emitted to being received by the sensor (unit: seconds), d represents the distance the ultrasonic wave propagates (unit: meters), v represents the propagation speed of the ultrasonic wave in the air (unit: meters / second), Δt delay Indicates the system delay time (unit: seconds);

[0141] The calculation expression of reflected signal strength is:

[0142]

[0143] Where: I represents the intensity of the reflected signal (unit: watt / square meter), I0 represents the intensity of the initial transmitted signal (unit: watt / square meter), α represents the ultrasonic attenuation coefficient (unit: 1 / meter), d represents the distance of ultrasonic propagation (unit: meter), K represents the number of interference waves (unitless), β k represents the amplitude of the kth interference wave (unitless), f k represents the frequency of the kth interference wave (unit: Hz), φ k represents the phase of the kth interference wave (unit: radian);

[0144] The controller's manhole cover status judgment equation expression:

[0145]

[0146] Where: S represents the manhole cover status score, w i represents the weight of the i-th feature, f i (x i ) represents the function of the i-th feature, x i represents the value of the i-th feature, n represents the total number of features, and v j represents the weight of the jth environmental feature, gj (y j ) represents the function of the jth environmental feature, y j represents the value of the jth environmental feature, and m represents the total number of environmental features;

[0147] The damage type calibration equation of the controller is expressed as:

[0148]

[0149] Where: D represents the damage type of the manhole cover, k′ represents the index of the damage type, and w j′k′ represents the weight of the j′th feature to the k′th damage type, g j′ (y j′ ) represents the function of the j′th feature, (y j′ ) represents the value of the j′th feature, m′ represents the total number of features, and u i′k′ represents the weight of the i′th historical data to the k′th damage type, h i′ (z i′ ) represents the function of the i′th historical data, z i′ The specific meanings of these complex equations and characters help the system process and analyze ultrasonic signals more accurately, determine the status and damage type of manhole covers, and thus achieve safe monitoring of urban road manhole covers.

[0150] Preferably, step S1 of this embodiment establishes a manhole cover type database and deploys ultrasonic sensors. Through initialization settings and inspection of water flow monitoring devices, real-time monitoring of the manhole cover status and timely activation of abnormal situations are guaranteed; through the combination of sensors and databases, comprehensive monitoring and rapid response to the manhole cover status are achieved, and the intelligent level of urban management is improved. Step S2 receives and processes ultrasonic signals, converts them into electrical signals and compares them with standard databases to obtain the manhole cover status; through the precise processing of high-frequency ultrasonic pulses and reflected signals, accurate judgment and classification of the manhole cover status are achieved, and real-time update of the manhole cover status and timely identification of abnormal situations are guaranteed. Step S3 The controller judges and calibrates according to the manhole cover status, transmits the damage type to the cloud platform, and sends it to relevant departments; through the combination of intelligent controllers and cloud platforms, automatic identification and remote processing of manhole cover damage are achieved, and the efficiency and safety of urban management are improved. In summary, this embodiment realizes real-time monitoring, accurate judgment, remote processing and efficient management of manhole cover status through the collaborative work of sensors, controllers, communication modules and cloud platforms, and improves the safety and management efficiency of urban infrastructure.

[0151] Further, if Fig.12As shown, this embodiment also provides a safety monitoring device for manhole covers in urban roads. In this embodiment, a safety monitoring device for manhole covers in urban roads is applied to a safety monitoring system for manhole covers in urban roads in the above-mentioned embodiment. The safety monitoring device for manhole covers in urban roads specifically includes a water flow monitoring device 5, a sensor device 6, a cloud platform 7, a controller 8 and a database device 9;

[0152] The water flow monitoring device 5 is responsible for sending a self-starting signal to the sensor device 6 when water flows through; the sensor device 6 is responsible for collecting basic information of the manhole cover and sending the basic information to the cloud platform 7; the cloud platform 7 is responsible for receiving the transmission data of the sensor device 6, processing it, and sending the processed data to the controller 8; the controller 8 calls the database device 9 according to the processed data, calibrates according to the data in the database device 9 and the manhole cover information collected in real time, and judges its safety level according to the calibration information; and sends the judgment result to the cloud platform 7; the database device 9 contains a number of manhole cover information, including standard manhole cover information and abnormal manhole cover information; the abnormal manhole cover information includes a database of various manhole cover damage conditions.

[0153] Preferably, when water flows through the water flow monitoring device 5 of this embodiment, it will send a self-starting signal to the sensor device 6. The signal is like a "wake-up" instruction, telling the sensor device 6 to start working. After receiving the signal, the sensor device 6 starts to collect basic information of the manhole cover, such as the location and status of the manhole cover. The information is like an "identity card" of the manhole cover, which contains its basic situation. The cloud platform 7 sensor device 6 sends the collected basic information to the cloud platform 7, which receives and processes the data. The processed data will be sent to the controller 8 for further analysis; the controller 8 retrieves the relevant manhole cover information from the database device 9 based on the data processed by the cloud platform 7, and compares the standard manhole cover information in the database with the manhole cover information collected in real time to see whether the manhole cover meets the standards; the database device 9 stores a large amount of manhole cover information, including standard manhole cover information and abnormal manhole cover information. The abnormal manhole cover information also contains a database of various manhole cover damage conditions, recording various problems that may occur in the manhole cover; the controller 8 determines the safety level of the manhole cover based on the calibrated information, and sends the determination result back to the cloud platform 7, which will record and analyze these results for subsequent management and maintenance.

[0154] In summary, this embodiment can realize real-time monitoring of the state of the manhole cover through this device, timely discover the abnormal situation of the manhole cover, and avoid traffic accidents or pedestrian injuries caused by manhole cover damage; it can automatically collect, process and analyze data, reduce the workload of manual inspections, and improve management efficiency; through the large amount of data in the database device 9, the system can more accurately judge the safety level of the manhole cover and provide a scientific decision-making basis for the urban management department; by discovering the abnormal situation of the manhole cover in advance, preventive maintenance can be carried out to avoid problems with the manhole cover at critical moments, and ensure the safety and smoothness of urban roads. This manhole cover safety monitoring device not only improves the safety of urban roads, but also improves the intelligent level of urban management, and has important technical significance and social value.

[0155] like Fig.13 As shown, this embodiment provides an embodiment of an electronic device. In this embodiment, the electronic device 10 includes a processor 101 and a memory 102 coupled to the processor 101 .

[0156] The memory 102 stores program instructions for implementing the method for monitoring the safety of manhole covers in urban roads of any of the above-mentioned embodiments. The processor 101 is used to execute the program instructions stored in the memory 102 to perform safety monitoring of manhole covers in urban roads. Among them, the processor 101 can also be called a CPU (Central Processing Unit). The processor 101 may be an integrated circuit chip with signal processing capabilities. The processor 101 can also be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc.

[0157] Further, Fig.14 The schematic diagram of the structure of the storage medium of an embodiment of the present application is that the storage medium 11 of the embodiment of the present application stores program instructions 111 that can implement all the above methods, wherein the program instructions 111 can be stored in the above storage medium in the form of a software product, including several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) or a processor to execute all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, or terminal devices such as a computer, a server, a mobile phone, and a tablet.

[0158] In the several embodiments provided by the present invention, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0159] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit may be implemented in the form of hardware or in the form of software functional units. The above is only an implementation mode of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the present invention specification and drawings, or directly or indirectly used in other related technical fields, is also included in the patent protection scope of the present invention.

[0160] The specific implementation methods of the invention are described in detail above, but they are only examples, and the invention is not limited to the specific implementation methods described above. For those skilled in the art, any equivalent modification or substitution of the invention is also within the scope of the invention, therefore, the equalization, modification, improvement, etc. made without departing from the spirit and principle of the invention should be included in the scope of the invention.

Claims

1. A manhole cover safety monitoring system in urban roads, characterized in that: The urban road manhole cover safety monitoring system comprises: The sensor module is used to establish a manhole cover type database, deploy a number of ultrasonic sensors at the bottom and on the manhole cover, and initialize the ultrasonic sensors; deploy a water flow monitoring device at the bottom of the inspection well to monitor the water flow at the bottom and start the ultrasonic sensor; Among them, the manhole cover type database includes a standard manhole cover type database and an abnormal manhole cover type database; the abnormal manhole cover type database includes manhole cover displacement, manhole cover abnormal noise, manhole cover bulge, manhole cover sinking, manhole cover missing and manhole cover damage problems; The manhole cover status module is used to receive the high-frequency ultrasonic pulses and reflected signals of the ultrasonic waves on the manhole cover, and convert the high-frequency ultrasonic pulses and reflected signals into electrical signals; pre-process the electrical signals, compare them with the established standard database, and obtain the manhole cover status; and input the manhole cover status into the controller; Among them, the manhole cover status includes standard manhole cover type and abnormal manhole cover type; The judgment module is used for the controller to judge according to the state of the manhole cover. If it is judged to be an abnormal manhole cover type, the judgment result is calibrated with the data of different damage types to obtain the damage type of the manhole cover; the damage type of the manhole cover is transmitted to the cloud platform and sent to the road management department and the traffic management department.

2. The urban road manhole cover safety monitoring system according to claim 1 is characterized in that: Sensor module, including: The manhole cover statistics submodule is used to collect the location coordinates of manhole covers on urban roads, mark the type and depth of the manholes, and input the collected manhole cover location coordinates, manhole type and manhole depth data into the manhole cover management system; The manhole cover type database submodule is used to implement the manhole cover management system to collect manhole cover related information according to the input manhole cover position coordinates, inspection well type and inspection well depth data; analyze the collected manhole cover related parameters, extract manhole cover features, use them to build a manhole cover type database, and transmit the manhole cover features to the manhole cover type database; The self-starter module is used to deploy several ultrasonic sensors at the bottom and on the manhole cover, initialize the ultrasonic sensors, and set the parameters of the ultrasonic sensors; deploy a water flow monitoring device at the bottom of the inspection well to monitor the water flow at the bottom and start the ultrasonic sensor.

3. The urban road manhole cover safety monitoring system according to claim 2 is characterized in that: Manhole cover type database submodule, including: The information collection unit is used to perform noise removal and size calibration preprocessing operations on the collected manhole cover related parameters; extract features from the preprocessed data; and output the extracted manhole cover features to the manhole cover management system; A manhole cover type database unit is used to construct a manhole cover type database, and to construct a characteristic value statistics subunit, a standard information data subunit and various abnormal information data subunits in the manhole cover type database; the manhole cover features are classified and input into the characteristic value statistics subunit; The characteristic value statistical unit is used to analyze the characteristics of the classified manhole covers, summarize the manhole covers according to the analysis results, and obtain standard data information of the manhole covers; the standard information is input into the standard information data unit.

4. The urban road manhole cover safety monitoring system according to claim 2 is characterized in that: Self-starter module, including: An initialization unit is used to arrange a plurality of ultrasonic sensors at the bottom and on the manhole cover, initialize the ultrasonic sensors, and set the working mode and measurement range parameters of the ultrasonic sensors; The start unit is used to inspect the water flow monitoring device at the bottom of the well. When water flow is detected, a start signal is sent to the ultrasonic sensor in the specified area. The ultrasonic sensor in the specified area receives the start signal and starts to emit high-frequency ultrasonic pulses. The acquisition unit is used to transmit high-frequency ultrasonic pulses to the manhole cover, which propagate through the surface of the manhole cover. If it encounters the internal structure or defects of the manhole cover, it will generate reflection; the same ultrasonic sensor will receive the reflected echo signal; and send the reflected echo signal to the manhole cover management system.

5. The urban road manhole cover safety monitoring system according to claim 1, characterized in that: Manhole cover status module, including: A conversion submodule, used for receiving high-frequency ultrasonic pulses and reflected signals of ultrasonic waves on the manhole cover, and converting the high-frequency ultrasonic pulses and reflected signals into electrical signals; The processing submodule is used to amplify and remove noise from the electrical signal, shape and compare the electrical signal, and transmit the processed electrical signal to the manhole cover management system; The status submodule is used to compare the processed electrical signal with the standard database to obtain the status of the manhole cover.

6. The urban road manhole cover safety monitoring system according to claim 5, characterized in that: Status submodule, including: The comparison unit is used to retrieve the standard manhole cover data in the standard database according to the preprocessed electrical signal; retrieve the standard information of the manhole cover in the standard data unit according to the positioning of the ultrasonic sensor; and retrieve the historical data of the manhole cover; A judgment unit, used to compare the standard information of the manhole cover with the real-time manhole cover data, set a comparison state threshold, and judge the state of the manhole cover according to the comparison state threshold; The output unit is used to send abnormal manhole cover state information to the controller if the manhole cover state is an abnormal manhole cover state.

7. The urban road manhole cover safety monitoring system according to claim 1, characterized in that: The judgment module includes: The controller submodule is used to judge the state of the manhole cover according to the controller pattern, retrieve the standard manhole cover database, compare it with the manhole cover, set the comparison threshold, and obtain the manhole cover state according to the comparison threshold; if it is greater than the comparison threshold, it is judged as an abnormal manhole cover type; The calibration submodule is used to process the abnormal manhole cover type, retrieve the damage type database, and calibrate the processing result with the damage type database; obtain the manhole cover damage type according to the calibration result, and send the damage type to the cloud platform; The processing submodule is used to enable the cloud platform to analyze the damage type, preset the risk level of the manhole cover, and derive the risk level of the manhole cover based on the analysis level; set the risk level standard, if it is less than the risk level data, it will be sent to the road management department and the traffic management department; if it is greater than the risk level standard, the traffic management department will be reminded to carry out temporary processing, and the road management department will replace and repair the manhole cover in time.

8. The urban road manhole cover safety monitoring system according to claim 7, characterized in that: Calibration submodule, including: The first retrieval unit is used to process the abnormal manhole cover type, initiate a request to retrieve the damage type database, and determine the database strategy for the target damage type data; retrieve the damage type database to determine whether there is restriction condition data in the abnormal manhole cover; A second retrieval unit is used to determine whether the number of rows returned in the restriction condition data is greater than a preset threshold if there is restriction condition data in the retrieved abnormal manhole cover type, and if it is less than the preset threshold, retrieve the first abnormal manhole cover type database; if it is greater than the preset threshold, retrieve the second abnormal manhole cover type database; The first abnormal manhole cover type database includes manhole cover tilt and displacement data; the second abnormal manhole cover type database includes manhole cover damage type data; The calibration unit is used to retrieve various abnormal manhole cover databases and perform calibration and evaluation on the abnormal manhole cover types to obtain the final manhole cover damage type, and send the manhole cover damage type to the cloud platform.

9. The urban road manhole cover safety monitoring system according to claim 7, characterized in that: Processing submodules, including: The level analysis unit is used to enable the cloud platform to perform risk category analysis based on the final manhole cover received and set the risk category level; The risk levels include Class I manhole cover risk level, Class II manhole cover risk level, Class III manhole cover risk and Class IV manhole cover risk level; Class I manhole cover risk level includes missing, damaged, manhole cover displacement, and no anti-fall device; Class II manhole cover risk level includes insufficient bearing capacity, manhole cover bulge, manhole cover sinking, insufficient bearing capacity, manhole cover bulge, manhole cover sinking; Class III manhole cover risk level includes excessive cover seat difference, abnormal noise of manhole cover, and damaged road surface around the manhole; Class IV safety hazard risks include incorrect manhole cover markings and manhole covers occupying blind paths; The early warning unit is used to match the analysis results with the risk level of the manhole cover, set the corresponding early warning threshold according to the risk level of the manhole cover, set the risk level standard, and if it is less than the risk level data, it will be sent to the road management department and the traffic management department; if it is greater than the risk level standard, the traffic management department will be reminded to make temporary arrangements, and the road management department will replace and repair the manhole cover in time; The feedback unit is used to transmit the data after maintenance to the manhole cover standard database, update the status information of the manhole cover, analyze the data after maintenance, and evaluate the life and maintenance cycle of the manhole cover.

10. A method for monitoring the safety of manhole covers in urban roads, which is applied to the system for monitoring the safety of manhole covers in urban roads as claimed in any one of claims 1 to 9, characterized in that: The method for inspecting the safety of manhole covers in urban roads comprises: Establish a manhole cover type database, deploy several ultrasonic sensors at the bottom and on the manhole cover, and initialize the ultrasonic sensors; deploy a water flow monitoring device at the bottom of the inspection well to monitor the water flow at the bottom and activate the ultrasonic sensors; Among them, the manhole cover type database includes a standard manhole cover type database and an abnormal manhole cover type database; the abnormal manhole cover type database includes manhole cover displacement, manhole cover abnormal noise, manhole cover bulge, manhole cover sinking, manhole cover missing and manhole cover damage problems; Receive the high-frequency ultrasonic pulse and reflected signal of the ultrasonic wave on the manhole cover, and convert the high-frequency ultrasonic pulse and reflected signal into an electrical signal; pre-process the electrical signal, compare it with the established standard database, and obtain the state of the manhole cover; input the state of the manhole cover into the controller; Among them, the manhole cover status includes standard manhole cover type and abnormal manhole cover type; The controller makes a judgment based on the status of the manhole cover. If it is judged to be an abnormal manhole cover type, it calibrates the judgment result with the data of different damage types to obtain the manhole cover damage type; the manhole cover damage type is transmitted to the cloud platform and sent to the road management department and the traffic management department.

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