Three-dimensional map system based on dual positioning seismic internet of things intelligent electric connector

Abstract

The application discloses a three-dimensional map system based on a dual-positioning vibration internet-of-things intelligent electric connector, and relates to the technical field of three-dimensional maps.The system comprises an intelligent electric connector, a three-dimensional map generation module, a cloud server and a user interactive terminal; the intelligent electric connector collects vibration data through a vibration sensor, obtains plane and height dual-positioning data through Beidou+GPS dual-mode differential positioning and air pressure sensing and floor calibration algorithms, uploads data using dual-mode communication, and receives instructions to perform remote on-off control; the cloud server completes data analysis, abnormality grading determination and data storage; the three-dimensional map generation module models and renders based on dual-positioning data, and generates a real-time updated three-dimensional space map; the user interactive terminal can realize alarm receiving, remote control, data query and three-dimensional map retrieval.The application realizes earthquake-carrying electric safety monitoring and full-scene accurate positioning, and provides technical support for low-altitude equipment height positioning and navigation.

Description

Technical Field

[0001] This invention relates to the field of three-dimensional map technology, and in particular to a three-dimensional map system based on a dual-positioning vibration IoT smart electrical connector. Background Technology

[0002] With the rapid development of low-altitude economy, urban three-dimensional transportation, multi-story buildings, and underground spaces, new business models such as drone inspection, low-altitude operations, and three-dimensional maintenance have placed higher demands on spatial perception capabilities. There is an urgent need to construct a comprehensive three-dimensional spatial map system covering above-ground, underground, and multi-story areas to provide precise spatial support for low-altitude operations and three-dimensional maintenance. However, in existing technologies, spatial management of power consumption nodes still largely relies on two-dimensional planar maps, which can only achieve horizontal position marking and cannot present the vertical distribution of equipment on different floors and at different heights. Furthermore, it is difficult to support three-dimensional navigation and inspection path planning for low-altitude equipment such as drones, creating blind spots in three-dimensional spatial management and failing to meet the multi-dimensional spatial operation needs of the low-altitude economy.

[0003] Currently, the difficulty of indoor vertical positioning has become a prominent pain point in the industry. Although some smart electrical devices integrate positioning and monitoring modules, they generally suffer from a lack of three-dimensional spatial information: satellite positioning signals have difficulty penetrating building walls and floors, and cannot obtain effective elevation information in indoor, basement, and high-rise building scenarios; indoor positioning technologies such as Bluetooth, Wi-Fi, and UWB have low vertical accuracy, high floor misjudgment rates, are easily affected by obstruction and interference, and require additional base station deployment, making it impossible to achieve low-cost wide-area coverage. Traditional GPS / BeiDou positioning can only provide latitude and longitude coordinates, and cannot achieve accurate identification of height and floor, making it difficult to construct three-dimensional spatial data with elevation information; at the same time, most existing monitoring systems can only achieve point marking on two-dimensional maps, and cannot link equipment status, abnormal events, and three-dimensional spatial location, and cannot form an interactive, positionable, and traceable three-dimensional spatial situation view, making it difficult to meet the needs of real-time perception and emergency response of equipment status in low-altitude operations, and also unable to provide intuitive spatial visualization support for three-dimensional operation and maintenance.

[0004] Existing technical solutions generally lack the ability to accurately map elevation to floors, lack reliable floor calibration mechanisms, cannot convert the distribution information of massive electrical connectors into structured three-dimensional spatial data, and cannot achieve dynamic updates, layered display, and one-click navigation of equipment location and status. As a result, drones and intelligent inspection equipment cannot perform path planning and operation scheduling based on a unified three-dimensional map, which restricts the intelligent and efficient development of electrical equipment management in low-altitude economic scenarios. Summary of the Invention

[0005] The purpose of this invention is to propose a three-dimensional map system based on a dual-positioning vibration IoT smart electrical connector, which solves the problem in the existing technology of being unable to achieve three-dimensional spatial modeling and equipment status linkage display with multi-story, full-height, and full-area coverage, and provides accurate three-dimensional spatial support and visualization services for equipment management in low-altitude economic and three-dimensional scenarios.

[0006] To achieve the above objectives, this invention proposes a three-dimensional map system based on a dual-positioning vibration IoT smart electrical connector, comprising: Intelligent electrical connectors, 3D map generation modules, cloud servers, and user interaction terminals; The intelligent electrical connector is the system's only hardware entry point, integrating four major modules to ensure wide-area deployment and stable operation, including a terminal acquisition module, a positioning module, an IoT communication module, and a power supply module. The terminal acquisition module has a built-in miniature high-precision vibration sensor for acquiring vibration acceleration, vibration frequency, and vibration duration data. The positioning module includes a geographic location positioning unit and an altitude positioning unit, forming dual positioning data that combines planar and altitude data; The geographic location positioning unit obtains the planar latitude and longitude coordinates of the smart electrical connector through Beidou + GPS dual-mode differential; The height positioning unit uses air pressure sensing combined with a floor calibration algorithm to obtain the absolute height and relative floor information of the smart electrical connector; The IoT communication module is electrically connected to the terminal acquisition module and the positioning module, and includes a WiFi communication subunit, an NB-IoT communication subunit and a relay. It uses WiFi+NB-IoT dual-mode communication to automatically switch and upload the acquired vibration data and positioning data to the network, and receive control commands from the network. The power supply module adopts a dual power supply mode of mains power and lithium battery and is electrically connected to the terminal acquisition module, the positioning module and the Internet of Things communication module, including a mains power supply unit, a lithium battery power supply unit and a charging management unit; The cloud server is connected to the IoT communication module and includes a data parsing unit, an anomaly determination unit, and a data storage unit. It is used to parse and process the received vibration data and dual positioning data, determine the anomaly classification, store historical data and alarm information, and push the processing results to the 3D map generation module and the user interaction terminal. The 3D map generation module performs 3D grid modeling, coordinate mapping and floor stacking rendering based on dual positioning data, generates and updates a 3D spatial map in real time, and simultaneously displays the corresponding smart connector points in a linked manner by highlighting, flashing or color changing according to the anomaly judgment results. The user interaction terminal is communicatively connected to the cloud server, including a mobile APP and a PC terminal, and is used to receive alarm and early warning information, remotely control the on / off state of electrical connectors, query historical data, and access the three-dimensional spatial map.

[0007] Preferably, the miniature high-precision vibration sensor supports multi-level adjustment of vibration sensitivity, and can be adapted to vibration monitoring of different electrical connectors and electrical devices by adjusting the vibration feedback ratio.

[0008] Preferably, the floor calibration algorithm calculates the initial height by converting the air pressure value collected by the barometer, and combines it with the building floor height database to calculate and correct the floor height through the difference, as shown in the following formula: ; in, The absolute height of the smart electrical connector, This is the universal gas constant. T The ambient thermodynamic temperature, g It is the acceleration due to gravity. M For the molar mass of air, As the reference pressure, p The measured air pressure at the location of the smart electrical connector. This is a correction factor based on a building floor height database; The formula for calculating the floor is as follows: ; in, N For the target floor, Ground reference height, h Preset floor height Calibrate the floor offset.

[0009] Preferably, the 3D map generation module generates a 3D spatial map, and the specific steps are as follows: S101. Divide the monitoring area into several three-dimensional grid units according to latitude and longitude range, height range, and floor number, and bind each grid unit with a unique spatial code. S102. Map the latitude, longitude, absolute height, and floor information of multiple smart electrical connectors to a three-dimensional coordinate system to generate three-dimensional device locations with elevation attributes. S103. Vertically stack and render according to floor order, integrate building outline, equipment distribution, and on / off status to form a three-dimensional spatial map including above-ground and underground spaces.

[0010] Preferably, the data parsing unit is used to parse the received raw vibration data and positioning data; Anomaly detection unit: Used to compare the parsed real-time vibration data with a preset threshold, determine the current anomaly level, and issue an early warning message; The data storage unit is used to store historical data, alarm records, and generated 3D map data.

[0011] Preferably, the anomaly determination unit uses a comprehensive vibration anomaly scoring method with a time decay factor for calculation, as shown in the following formula: ; in, S For real-time vibration anomaly scoring, This is the normalized value of the current vibration acceleration. This is the normalized value of the historical vibration frequency. This is the normalized value for the duration of the vibration. , , These are weighting coefficients. k The attenuation coefficient is... t For time parameters, For integration variables; The specific thresholds for grading are as follows: S <30: Normal, no alarm; 30≤ S <60: Mild abnormality; S ≥60: Severe abnormality; The anomaly detection unit is based on real-time vibration anomaly scoring. S By combining the height difference determination formula with other methods, the false alarm rate can be reduced. The height difference determination formula is as follows: ; in, For the height difference, For smart electrical connectors in t The height of time, For smart electrical connectors in t The altitude at time -1.

[0012] Preferably, the data storage unit also stores vibration data, positioning data, alarm records, and historical data; the 3D map system supports data traceability and trend analysis storage and algorithm application.

[0013] Preferably, the module of the intelligent electrical connector can be applied to devices in all scenarios, including white goods, new energy vehicles, charging facilities, building power distribution, industrial power, and commercial or household electrical terminals, thus consolidating the data diversity of the three-dimensional system.

[0014] Therefore, this invention proposes a three-dimensional map system based on a dual-positioning vibration IoT smart electrical connector, which has the following advantages: (1) Based on the dual positioning data of Beidou + GPS planar positioning and barometric floor height positioning, this invention constructs a full-domain three-dimensional spatial map covering the ground, underground and multiple floors through three-dimensional grid division, unified coordinate mapping and floor stacking rendering, which fully presents the real spatial distribution of electrical connectors in the horizontal and vertical directions, completely solving the defect of traditional planar maps that cannot display height, floors and three-dimensional topological relationships, and providing a unified three-dimensional spatial visualization base for complex buildings, underground spaces and high-rise buildings.

[0015] (2) This invention links the vibration anomaly judgment result with the depth of the three-dimensional map. When anomalies such as illegal prying, equipment displacement, or fault vibration occur, the alarm point can be highlighted, flashed, or color-changed in real time on the three-dimensional map, and automatically focused and located. This realizes that the anomaly can be seen and the point can be located, which significantly improves the efficiency of anomaly identification, fault investigation and emergency response.

[0016] (3) The three-dimensional map generated by this invention has a unified coordinate system, accurate elevation information and dynamic equipment status. It can directly provide standardized three-dimensional spatial positioning and navigation data for UAV inspection, intelligent robots and low-altitude operation equipment, support path planning, autonomous obstacle avoidance, precise operation and full-domain scheduling, fill the gap in the field of electrical equipment without dedicated three-dimensional spatial maps, and strongly support the intelligentization and automation of scenarios such as low-altitude economy, three-dimensional security and intelligent operation and maintenance.

[0017] (4) This invention uses intelligent electrical connectors as the hardware core to build a fully closed-loop three-dimensional map system of “collection-positioning-communication-processing-modeling-interaction”, which is currently irreplaceable by any similar architecture; at the same time, relying on the massive natural deployment of electrical connectors, it achieves full coverage of indoor and outdoor, high and low floors, and above and below ground, which other hardware does not have such wide range and universality.

[0018] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0019] Figure 1 This is an overall architecture diagram of the three-dimensional map system based on a dual-positioning vibration IoT smart electrical connector, as described in this invention. Figure 2 This is a flowchart illustrating the construction process of the three-dimensional map system based on a dual-positioning vibration IoT smart electrical connector, as described in this invention. Figure 3 This is a flowchart illustrating the workflow of the 3D map system based on a dual-positioning vibration IoT smart electrical connector, as described in this invention.

[0020] Figure Labels 110. Smart electrical connector; 1. Terminal acquisition module; 101. Miniature high-precision vibration sensor; 2. Positioning module; 201. Geographic location positioning unit; 202. Altitude positioning unit; 3. Internet of Things communication module; 301. WiFi communication subunit; 302. NB-IoT communication subunit; 303. Relay; 4. Cloud server; 401. Data parsing unit; 402. Anomaly detection unit; 403. Data storage unit; 5. User interaction terminal; 501. Mobile APP; 502. PC terminal; 6. Power supply module; 601. Mains power supply unit; 602. Lithium battery power supply unit; 603. Charging management unit; 7. 3D map generation module. Detailed Implementation

[0021] To make the technical solutions, advantages, and objectives of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below. The described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention without creative effort are within the protection scope of the present invention.

[0022] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

[0023] Example 1 like Figure 1 As shown, this invention provides a three-dimensional map system based on a dual-positioning vibration IoT smart electrical connector, which is applied to the power supply lines of indoor socket distribution boxes, energy storage stations, charging piles, and other power-consuming products in high-rise and underground buildings. It provides users with intelligent control solutions for electrical connector devices, precise height positioning control of electrical connector devices, and precise height positioning electronic maps. The system includes: a smart electrical connector 110, a cloud server 4, a user interaction terminal 5, and a three-dimensional map generation module 7. The intelligent electrical connector 110 includes a terminal acquisition module 1, a positioning module 2, an Internet of Things communication module 3, and a power supply module 6; The terminal acquisition module 1 has a built-in miniature high-precision vibration sensor 101 for acquiring vibration acceleration, vibration frequency, and vibration duration data. The miniature high-precision vibration sensor 101 supports multi-level adjustment of vibration sensitivity and can be adapted to vibration monitoring of different electrical connectors by adjusting the vibration feedback ratio.

[0024] The positioning module 2 includes a geographic location positioning unit 201 and an altitude positioning unit 202. The geographic location positioning unit 201 obtains the planar latitude and longitude coordinates of the electrical connector through Beidou + GPS dual-mode differential, and the altitude positioning unit 202 uses air pressure sensing combined with a floor calibration algorithm to obtain the absolute height and relative floor information of the smart electrical connector, so as to achieve high-precision three-dimensional positioning with an absolute height error of ±0.5m and a relative floor error of ±1 floor. The floor calibration algorithm calculates the initial height by converting air pressure values ​​collected by barometers, and combines this with a building floor height database to correct the floor height through differential calculation. The formula is as follows: ; in, The absolute height of the smart electrical connector, This is the universal gas constant. T The ambient thermodynamic temperature, g It is the acceleration due to gravity. M For the molar mass of air, As the reference pressure, p The measured air pressure at the location of the smart electrical connector. This is a correction factor based on a building floor height database; The formula for calculating the floor is as follows: ; in, N For the target floor, Ground reference height, h Preset floor height Calibrate the floor offset.

[0025] The IoT communication module 3 includes a WiFi communication subunit 301, an NB-IoT communication subunit 302, and a relay 303. It uses WiFi+NB-IoT dual-mode communication with automatic switching to upload the collected vibration data and positioning data to the network and receive control commands from the network. Among them, the IoT communication module 3 prioritizes the use of the WiFi communication subunit 301 to transmit data. The relay 303 receives control commands from the user interaction terminal 5 or the cloud server 4 and directly controls the connection and disconnection of the power supply circuit of the electrical connector to realize automatic power-off protection in abnormal situations.

[0026] The cloud server 4 includes a data parsing unit 401, an anomaly detection unit 402, and a data storage unit 403; The data parsing unit 401 is used to parse the received raw vibration data and positioning data; Anomaly determination unit 402: used to compare the parsed real-time vibration data with a preset threshold, determine the current anomaly level, and issue an early warning message; Data storage unit 403 is used to store historical data, alarm records and generated 3D map data, supporting data traceability and trend analysis storage and algorithm applications.

[0027] The anomaly determination unit uses a comprehensive vibration anomaly scoring method with a time decay factor for calculation, as shown in the following formula: ; in, S For real-time vibration anomaly scoring, This is the normalized value of the current vibration acceleration. This is the normalized value of the historical vibration frequency. This is the normalized value for the duration of the vibration. , , These are weighting coefficients. k The attenuation coefficient is... t For time parameters, For integration variables; The specific thresholds for grading are as follows: S <30: Normal, no alarm; 30≤ S <60: Mild abnormality; S ≥60: Severe abnormality; The anomaly detection unit is based on real-time vibration anomaly scoring. S By combining the height difference determination formula with other methods, the false alarm rate can be reduced. The height difference determination formula is as follows: ; in, For the height difference, For smart electrical connectors in t The height of time, For smart electrical connectors in t The altitude at time -1.

[0028] When the cloud server 4 determines that a severe anomaly has occurred, it will push the anomaly level, location information, and altitude information to the user interaction terminal 5 within 1 second. The user interaction terminal 5 has a one-click navigation function, which can quickly navigate to the location of the alarm power connector based on the location data of the positioning module 2.

[0029] User interaction terminal 5 includes a mobile APP 501 and a PC terminal 502, used to receive alarm and warning information, remotely control the on / off state of electrical connectors, query historical data, and access 3D maps. Simultaneously, user interaction terminal 5 features real-time alarm reception, 3D spatial map visualization, remote parameter adjustment, historical data query and export, and one-click navigation to the location of alarm devices; it also integrates video and voice social networking, navigation, mini-programs, and payment link functions, and is compatible with third-party APPs.

[0030] The power supply module 6 adopts a dual power supply mode of mains power and lithium battery, including mains power supply electronic unit 601, lithium battery power supply electronic unit 602 and charging management unit 603. When the mains power is interrupted, the lithium battery power supply electronic unit 602 can maintain the system operation for 72 hours. The charging management unit 603 monitors the power level and pushes a low power alarm to the mobile APP 501 or PC terminal 502 when the power level is low.

[0031] The 3D map generation module 7 performs 3D raster modeling, coordinate mapping, and floor stacking rendering based on dual positioning data to generate and update a 3D spatial map in real time. Simultaneously, based on anomaly detection results, it highlights, flashes, or changes color to corresponding smart connector locations. The specific steps of the 3D map generation module 7 in generating the 3D spatial map are as follows: S101. Divide the monitoring area into several three-dimensional grid units according to latitude and longitude range, height range, and floor number, and bind each grid unit with a unique spatial code. S102. Map the latitude, longitude, absolute height, and floor information of multiple smart electrical connectors to a three-dimensional coordinate system to generate three-dimensional device locations with elevation attributes. S103. Render the building vertically in order of floor, blending the building outline, equipment distribution, and access status to form a three-dimensional spatial map that includes above-ground and underground spaces. All components and modules in this invention are integrated into a single motherboard. The terminal acquisition module 1 and the positioning module 2 are electrically connected to the data input terminal of the IoT communication module 3 via a UART interface. The power supply module 6 is electrically connected to the terminal acquisition module 1, the positioning module 2, and the IoT communication module 3. The IoT communication module 3 is wirelessly linked to the user interaction terminal 5 and the cloud server 4. The 3D map generation module 7 is deployed on the cloud server 4 and is connected to the user interaction terminal 5 via network communication.

[0032] The specific workflow of this invention is as follows: Initialization: After the 3D map system composed of intelligent electrical connectors is powered on, the miniature high-precision vibration sensor 101, positioning module 2, and Internet of Things communication module 3 are activated, the power supply module 6 is powered on, and the network pairing with the cloud server 4 is completed, and the user interaction terminal 5 is bound to the device.

[0033] Data Acquisition and Upload: The miniature high-precision vibration sensor 101 collects vibration data in real time, while the geolocation unit 201 and the altitude positioning unit 202 simultaneously collect latitude, longitude, and altitude data. The data is then uploaded to the cloud server 4 in real time via the IoT communication module 3. The cloud server 4 analyzes the data through the data parsing unit 401, and the anomaly judgment unit 402 compares it with a preset threshold. If the vibration data exceeds the preset threshold, it is judged as an anomaly.

[0034] Alarm push: The cloud server 4 packages the abnormality level, vibration data and dual positioning information, and pushes them to the user interaction terminal 5 through the IoT communication module 3. The user interaction terminal 5 controls the relay 303 to execute the power on and off command.

[0035] Data traceability: Users can view historical vibration data and positioning trajectory through user interaction terminal 5. The data storage unit 403 of cloud server 4 supports data export. The 3D map generation module 7 receives and integrates the positioning data of positioning module 2 to form a 3D spatial map, which is presented and intelligently controlled on user interaction terminal 5.

[0036] Example 2 like Figure 2 As shown, the present invention also provides a construction process for a three-dimensional map system based on a dual-positioning vibration IoT smart electrical connector, the steps of which are as follows: S1. The system is powered on and starts up, and completes self-test of each module. The smart electrical connector is connected to the cloud server for pairing, and the user interaction terminal is bound to the device. The 3D map generation module preloads building data and initializes the 3D grid coordinate system to build a 3D space base. S2. The positioning module obtains planar coordinates through BeiDou + GPS dual-mode differential, and obtains height and floor information through barometric pressure sensing and floor calibration algorithm to form three-dimensional positioning data. S3, the IoT communication module adopts WiFi + NB-IoT dual-mode automatic switching to upload vibration data and three-dimensional positioning data to the cloud server in real time; S4. The cloud server parses and processes the data, mapping latitude and longitude, absolute height, and floor information to a unified three-dimensional coordinate system to generate three-dimensional equipment locations with elevation attributes. S5, the 3D map generation module generates and updates a 3D spatial map containing above-ground, underground and multi-story areas through 3D grid division, coordinate mapping and floor stacking rendering; S6: Cloud storage of 3D map models, equipment 3D trajectories, and historical anomaly data enables 3D spatial situation retrospection, fault analysis, and system optimization. S7. Users can achieve one-click navigation in the three-dimensional space map through the user interaction terminal, and provide three-dimensional positioning and path planning support for low-altitude equipment.

[0037] Example 3 like Figure 3 As shown, the present invention also provides a workflow for a three-dimensional map system based on a dual-positioning vibration IoT smart electrical connector, the steps of which are as follows: T1. System initialization and pairing (system power-on, each module self-tests, completes terminal and cloud server network pairing, and mobile APP binds to device). T2. Real-time acquisition of vibration + dual positioning data (miniature high-precision vibration sensor 101 collects vibration parameters, and geographic location positioning unit 201 and altitude positioning unit 202 simultaneously collect positioning data). T3. Dual-mode communication data is uploaded to the cloud (IoT communication module 3 prioritizes uploading via WiFi communication subunit 301, and switches to NB-IoT communication subunit 302 if WiFi is unavailable to ensure uninterrupted data transmission). T4. Cloud data analysis and anomaly detection (cloud server 4 processes data through data analysis unit 401, and anomaly detection unit 402 compares it with preset vibration threshold). T5. Abnormality Classification Judgment (based on vibration intensity, vibration frequency, and vibration duration, it is divided into three levels: normal, mild abnormality, and severe abnormality, corresponding to different alarm priorities). T6. Cloud push alarm information (cloud server 4 packages the abnormality level, vibration data, and dual positioning information and pushes them to the user interaction terminal 5). T7. User interaction terminal 5 receives alarm, location and vibration data (mobile APP 501 and PC terminal 502 receive information simultaneously and trigger alarm reminder). T8, Operation and Maintenance Response + One-Click Navigation (Operation and maintenance personnel receive reminders and navigate to the alarm location with one click through the user interaction terminal 5 for on-site troubleshooting and handling). T9. Cloud Data Storage and Traceability Analysis (Data storage unit 403 retains all data, supports historical data query and export, and is used for fault analysis and security assessment).

[0038] It is worth noting that all contents not described in detail in this invention are existing technologies and are well known to those skilled in the art.

[0039] Therefore, this invention provides a three-dimensional map system based on a dual-positioning vibration IoT smart electrical connector. Through BeiDou + GPS and altitude sensing dual-mode stereo positioning, multi-dimensional vibration monitoring and early warning, and three-dimensional spatial map construction, it achieves accurate positioning without blind spots in all scenarios, proactive protection for power safety, and provides reliable spatial positioning support for drones and intelligent robots in the low-altitude economic field.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A three-dimensional map system based on a dual-positioning vibration IoT smart electrical connector, characterized in that, include: Intelligent electrical connectors, 3D map generation modules, cloud servers, and user interaction terminals; The smart electrical connector includes a terminal acquisition module, a positioning module, an IoT communication module, and a power supply module; The terminal acquisition module has a built-in miniature high-precision vibration sensor for acquiring vibration acceleration, vibration frequency, and vibration duration data. The positioning module includes a geographic location positioning unit and an altitude positioning unit, forming dual positioning data that combines planar and altitude data; The geographic location positioning unit obtains the planar latitude and longitude coordinates of the smart electrical connector through Beidou + GPS dual-mode differential; The height positioning unit uses air pressure sensing combined with a floor calibration algorithm to obtain the absolute height and relative floor information of the smart electrical connector; The IoT communication module is electrically connected to the terminal acquisition module and the positioning module, and includes a WiFi communication subunit, an NB-IoT communication subunit and a relay. It uses WiFi+NB-IoT dual-mode communication to automatically switch and upload the acquired vibration data and positioning data to the network, and receive control commands from the network. The power supply module adopts a dual power supply mode of mains power and lithium battery and is electrically connected to the terminal acquisition module, the positioning module and the Internet of Things communication module, including a mains power supply unit, a lithium battery power supply unit and a charging management unit; The cloud server is connected to the IoT communication module and includes a data parsing unit, an anomaly determination unit, and a data storage unit. It is used to parse and process the received vibration data and dual positioning data, determine the anomaly classification, store historical data and alarm information, and push the processing results to the 3D map generation module and the user interaction terminal. The 3D map generation module performs 3D grid modeling, coordinate mapping and floor stacking rendering based on dual positioning data, generates and updates a 3D spatial map in real time, and simultaneously displays the corresponding smart connector points in a linked manner by highlighting, flashing or color changing according to the anomaly judgment results. The user interaction terminal is communicatively connected to the cloud server, including a mobile APP and a PC terminal, and is used to receive alarm and early warning information, remotely control the on / off state of electrical connectors, query historical data, and access the three-dimensional spatial map.

2. The three-dimensional map system based on a dual-positioning vibration IoT smart electrical connector as described in claim 1, characterized in that, The miniature high-precision vibration sensor supports multi-level adjustment of vibration sensitivity and can be adapted to vibration monitoring of different electrical connectors and electrical devices by adjusting the vibration feedback ratio.

3. The three-dimensional map system based on a dual-positioning vibration IoT smart electrical connector as described in claim 1, characterized in that, The floor calibration algorithm calculates the initial height by converting air pressure values ​​collected by barometers, and combines this with a building floor height database to correct the floor height through differential calculation. The formula is as follows: ； in, The absolute height of the smart electrical connector, This is the universal gas constant. T The ambient thermodynamic temperature, g It is the acceleration due to gravity. M For the molar mass of air, As the reference pressure, p The measured air pressure at the location of the smart electrical connector. This is a correction factor based on a building floor height database; The formula for calculating the floor is as follows: ； in, N For the target floor, Ground reference height, h Preset floor height Calibrate the floor offset.

4. The three-dimensional map system based on a dual-positioning vibration IoT smart electrical connector as described in claim 1, characterized in that, The 3D map generation module generates a 3D spatial map, and the specific steps are as follows: S101. Divide the monitoring area into several three-dimensional grid units according to latitude and longitude range, height range, and floor number, and bind each grid unit with a unique spatial code. S102. Map the latitude, longitude, absolute height, and floor information of multiple smart electrical connectors to a three-dimensional coordinate system to generate three-dimensional device locations with elevation attributes. S103. Render the buildings vertically in order of floor, blending the building outlines and equipment distribution to form a three-dimensional spatial map that includes both above-ground and underground spaces.

5. The three-dimensional map system based on a dual-positioning vibration IoT smart electrical connector as described in claim 1, characterized in that, The data parsing unit is used to parse the received raw vibration data and positioning data; Anomaly detection unit: Used to compare the parsed real-time vibration data with a preset threshold, determine the current anomaly level, and issue an early warning message; The data storage unit is used to store historical data, alarm records, and generated 3D map data.

6. The three-dimensional map system based on a dual-positioning vibration IoT smart electrical connector as described in claim 5, characterized in that, The anomaly determination unit uses a comprehensive vibration anomaly scoring method with a time decay factor for calculation, as shown in the following formula: ； in, S For real-time vibration anomaly scoring, This is the normalized value of the current vibration acceleration. This is the normalized value of the historical vibration frequency. This is the normalized value for the duration of the vibration. , , These are weighting coefficients. k The attenuation coefficient is... t For time parameters, For integration variables; The specific thresholds for grading are as follows: S <30: Normal, no alarm; 30≤ S <60: Mild abnormality; S ≥60: Severe abnormality; The anomaly detection unit is based on real-time vibration anomaly scoring. S By combining the height difference determination formula with the system, a linkage determination can be performed to reduce the false alarm rate; the height difference determination formula is as follows: ； in, For the height difference, For smart electrical connectors in t The height of time, For smart electrical connectors in t The altitude at time -1.

7. The three-dimensional map system based on a dual-positioning vibration IoT smart electrical connector as described in claim 5, characterized in that, The data storage unit also stores vibration data, positioning data, alarm records, and historical data; the 3D map system supports data traceability and trend analysis storage and algorithm applications.

8. The three-dimensional map system based on a dual-positioning vibration IoT smart electrical connector as described in claim 1, characterized in that, The modules of the intelligent electrical connector can be applied to devices in all scenarios, including white goods, new energy vehicles, charging facilities, building power distribution, industrial power, and commercial or household electrical terminals, thus strengthening the data diversity of the three-dimensional system.

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