Subway protection area electronic map based on self-generating positioning system

Abstract

The invention provides a subway protection area electronic map based on a self-power-generation positioning system, and aims to solve problems existing in subway protection area management. Through wireless communication between the ground sign and the central management system, the ground sign uploads collected data to the central management system in real time, and real-time sharing and updating of information are achieved. Wherein the central management system utilizes high availability and elastic telescopic capability provided by a cloud computing platform, and data analysis adopts a geographic information system (GIS) technology. According to the invention, the GPS positioning technology and base station positioning are combined, positioning is carried out mainly depending on the GPS in an environment with good satellite signals, and high precision is ensured; and in an area where the satellite signal is poor or cannot be received, the position of the base station is used for auxiliary positioning, so that the defects of the GPS are overcome. By analyzing the data collected by the ground sign, the system can find potential safety hazards in time and remind management personnel to take corresponding measures through an early warning mechanism.

Description

Technical Field

[0001] This invention relates to an electronic map of a subway protection zone based on a self-generated positioning system, and particularly to a solution for providing an electronic map with high-precision positioning and navigation functions within a subway protection zone. Background Technology

[0002] With the booming development of urban subway transportation, the management and monitoring of subway protection zones have become increasingly critical. Subway protection zones are not only closely linked to the stable operation of the subway system, but also a core element in ensuring the harmonious coexistence of the surrounding environment. However, in terms of positioning technology for subway protection zones, existing solutions such as GPS and BeiDou, while performing excellently in open environments, rely heavily on satellite signals. Their application in underground environments such as subways is constrained by issues such as limited signal coverage and insufficient accuracy.

[0003] To overcome these challenges, this invention effectively integrates GPS and base station positioning. In environments with good satellite signals, GPS is primarily relied upon for positioning to ensure high accuracy. In areas with poor or no satellite signals, base stations are used for auxiliary positioning to compensate for GPS deficiencies. This invention relies on terrestrial communication base stations, which have relatively strong signal propagation capabilities and coverage, especially in densely populated areas such as cities where base stations are widely distributed and can provide relatively stable positioning services. Furthermore, the research and application of self-generating power technology is also crucial. Self-generating power technology not only provides a continuous and stable energy supply for landmarks but also achieves high-precision and high-reliability location information acquisition in underground environments through its unique positioning mechanism. The introduction of this technology enables the electronic map of the subway protection zone to update the location information of landmarks in real time, providing managers with more accurate and timely positioning data. Summary of the Invention

[0004] In view of this, the purpose of this invention is to provide an electronic map of a subway protection zone based on a self-generated positioning system, which can effectively improve the management and monitoring stability of subway protection zones.

[0005] An electronic map of a subway protection zone based on a self-generated positioning system, in conjunction with electronic landmarks on the ground of the subway protection zone, with a self-generated detection device attached below each electronic landmark. The device is powered by converting mechanical energy into electrical energy through a self-generated module.

[0006] An electronic map of a subway protection zone based on a self-generated positioning system integrates two positioning methods (GPS positioning and base station positioning) to complement each other, reduce errors, and thus improve the accuracy and reliability of positioning.

[0007] An electronic map of a subway protection zone based on a self-generated positioning system, characterized by the following steps:

[0008] S101, Start the self-generating positioning system, perform system initialization, check equipment status, and ensure the system is operating normally;

[0009] S102, the positioning device collects relevant data such as location and direction within the subway protection zone. The self-generated positioning system receives this data and transmits it to the data processing unit. The data processing unit filters and converts the received data signals to eliminate noise and interference. Based on the processed data, it calculates the precise location of the target within the subway protection zone.

[0010] S103. Based on the data processing results, determine the specific location of the target within the subway protection zone, integrate the determined location information into the electronic map of the subway protection zone, and display the target's location, trajectory, and other relevant information on the electronic map.

[0011] S104, set up a user interface, store location data, electronic maps and other related information in a secure and reliable database, and perform regular data backups to prevent data loss or damage.

[0012] The aforementioned electronic map of a subway protection zone based on a self-generated positioning system analyzes the collected data. If the monitored data is abnormal, it is determined that a landmark sign has been stolen, moved, or damaged, triggering an alarm. The alarm information and location are recorded, and the alarm information is sent to the backend platform via a wireless communication module.

[0013] The backend platform pushes the received information to the inspection personnel for processing. The inspection personnel process the alarm information and repair the electronic landmark.

[0014] The self-generated positioning system of the subway protection zone electronic map based on the self-generated positioning system also includes a transmitter module, a receiver, a GPS positioning module and an NBIOT communication module;

[0015] The NB-IoT wireless transmission module has excellent coverage and penetration, making it suitable for monitoring landmarks through periodic small data transmissions, perfectly solving the network coverage problem of meter terminals;

[0016] The GPS positioning module of the electronic map of the subway protection zone based on the self-generated positioning system adopts the HT1612Z3M3L module.

[0017] The wireless transmission module of the electronic map of the subway protection zone based on the self-generated positioning system adopts the NB-IoT module.

[0018] The data processing procedure aims to estimate the internal state of the observed process from a series of noisy observation data using a Kalman filter, and to model the process within the framework of Kalman filtering.

[0019] For each step k (Kalman gain), define matrix F. k (State transition matrix), H k (Transformation matrix from state variables to measurements), Q k (Process excitation noise covariance), R k (Measurement of noise covariance), B k (A matrix that converts the input into states) The Kalman filter model assumes that the true state at time k+1 evolves from the state at time k, conforming to the state equation: x k =F k x k-1 +B k u k +w k , of which F k It acts on x k-1 The state transition model on B k It acts on the controller vector u k The input-control model on, w k It is process noise, and it is assumed to have a mean of zero and a covariance matrix of Q. k The multivariate normal distribution, w k ~N(0,Q) k ), where cov{w(k)}=Q(k) represents the covariance matrix;

[0020] The data processing method for the electronic map of the subway protection zone based on the self-generated positioning system is based on the fourth-generation Web map rendering engine provided free of charge by Gaode Open Platform, and includes the following steps:

[0021] Users need to register an account on the Gaode Open Platform and complete the necessary authentication process;

[0022] After successful registration, the platform will generate a unique API (Application Programming Interface) key for the user. This key is the identity credential for subsequent API calls and is used to verify and authorize the legitimacy of API calls.

[0023] The Gaode Map API is called via HTTP (Hypertext Transfer Protocol) or HTTPS (Hypertext Transfer Protocol Secure) protocols. Users need to be familiar with the API interface parameters and return value formats.

[0024] Each API interface has a base URL (Uniform Resource Locator) used to identify information resources on the Internet and to uniformly address the services provided by the Internet. First, determine this base URL, and then add parameters on top of it.

[0025] After understanding the API calling specifications, users begin to construct HTTP requests, appending the parameters required by the Amap API to the URL in the prescribed format;

[0026] These parameters include the API key, query type (such as location search, route planning, etc.), location information (such as latitude and longitude coordinates or place name), and returned fields (such as address, distance, etc.).

[0027] By constructing a request, the user specifies the specific functionality of the API and the desired return results.

[0028] After constructing the HTTP request, the user sends it to the Amap API server using a network library or related tools;

[0029] After receiving the request, the server will perform the corresponding operation according to the parameters in the request and return data in JSON format (containing the latitude, longitude, address and other information required by the user).

[0030] After receiving the JSON data returned by the HTTP request, the user needs to parse it to extract the required information.

[0031] The parsing process follows the structure of the JSON data to ensure its accuracy and integrity.

[0032] Data obtained from the Amap API is cached so that when the same data is needed later, it can be retrieved directly from the cache, avoiding duplicate requests.

[0033] The user interface for the electronic map of a subway protection zone based on a self-generated positioning system includes map display and positioning, inspection task allocation and viewing, navigation and route planning, real-time data display, anomaly reporting and recording, task completion and feedback, and exit and data synchronization, wherein:

[0034] Users (inspection personnel) first log in to the electronic map system. After the system verifies the user's identity, it immediately displays the electronic map of the subway protection zone.

[0035] The map clearly marks the overall layout of the protected area, the location of key locations and facilities, enabling inspection personnel to intuitively understand the overall situation of the protected area;

[0036] The system uses positioning technology to automatically locate the current position of the inspection personnel and display it on the map in real time;

[0037] The system allows inspection personnel to manually locate specific inspection points to meet different inspection needs;

[0038] Based on the current location and inspection tasks of the inspection personnel, the system provides intelligent navigation to plan the best inspection route, helping the inspection personnel to reach each inspection point quickly and accurately.

[0039] The aforementioned electronic map of a subway protection zone based on a self-generated positioning system displays a list of inspection tasks (including detailed information such as inspection points, inspection requirements, and inspection times) to inspection personnel according to preset rules or administrator assignments.

[0040] By reviewing the task details, inspection personnel can understand the specific situation and precautions at each inspection point, ensuring the accuracy and efficiency of the inspection work.

[0041] During the inspection, the electronic map system displays real-time monitoring data related to the subway protection zone, such as temperature, humidity, and vibration.

[0042] The real-time updates of this data help inspectors to detect anomalies in a timely manner. Once an anomaly is detected or important information needs to be recorded, inspectors mark the anomaly on the map and enter relevant text descriptions or upload photos.

[0043] The system saves this information and generates an anomaly report for subsequent analysis and processing;

[0044] After completing their inspection tasks, the inspectors mark the task completion status on the electronic map and provide relevant feedback or suggestions.

[0045] The system continuously optimizes itself based on this feedback, improving the quality and efficiency of inspection work;

[0046] To ensure data integrity and security, after the inspection personnel complete their tasks, the system will synchronize all inspection data to the server for storage.

[0047] This process ensures real-time data updates and backups, preventing data loss or tampering. at the same time;

[0048] The system also employs security measures such as data encryption and access control to ensure data security;

[0049] The aforementioned electronic map of a subway protection zone based on a self-generated positioning system updates map information in real time via the Internet, displaying detailed information on the location of electronic landmarks in the subway protection zone.

[0050] The self-generated positioning system of the subway protection zone electronic map, which is based on a self-generated positioning system, serves as a means of obtaining the location of the subway protection zone electronic map. By collecting and processing the self-generated signals within the subway protection area, it achieves accurate measurement of electronic landmarks.

[0051] The communication protocol and data transmission method between the subway protection zone electronic map optimization and detection system based on a self-generated positioning system and the back-end platform adopt a compression algorithm to reduce the amount of data and use low-power wireless communication technology for data transmission to reduce energy consumption during data transmission.

[0052] The beneficial effects of this invention are as follows: An electronic map of a subway protection zone based on a self-generated positioning system successfully solves the problem of power supply difficulties for traditional positioning systems in complex environments such as subway protection zones. The positioning system, which integrates GPS and base station positioning, primarily relies on GPS for positioning in environments with good satellite signals, ensuring high accuracy. In areas with poor or unreceived satellite signals, base stations are used for auxiliary positioning to compensate for GPS deficiencies. Multi-frequency ranging and multipath radiation technologies provided by base stations are used to optimize GPS positioning. By fusing signals from multiple base stations, the interference of multipath signals on positioning accuracy is reduced, further improving positioning accuracy. The self-generated module converts mechanical energy in the environment into electrical energy, achieving system self-sufficiency without the need for an external power supply, thus simplifying the power supply system and reducing maintenance costs. The self-generated positioning system improves positioning accuracy and stability, making monitoring of subway protection zones more accurate and reliable, and helping to promptly detect potential safety hazards. The electronic map platform integrates rich geographic information, protection zone boundaries, key facilities, and other information, enabling real-time monitoring and management of subway protection zones, improving inspection efficiency, and enhancing safety assurance. Through early warning and alarm functions, the system can automatically handle abnormal situations, ensuring the safety and stability of the subway protection zone. The application of this invention has promoted the intelligent management of subway protection zones, improved management efficiency and quality, and provided a scientific basis for the planning, construction, and management of subway protection zones. This invention has produced significant beneficial effects in areas such as power supply, positioning, monitoring, management, and safety assurance. Attached Figure Description

[0053] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0054] Figure 1 This is a flowchart of the online monitoring process of the present invention;

[0055] Figure 2 This is a schematic diagram of the satellite navigation-based wireless network positioning method of the present invention;

[0056] Figure 3This is a layout diagram of the device of the present invention;

[0057] Figure 4 This is a schematic diagram of the Kalman filtering algorithm steps used in this invention;

[0058] Figure 5 This is a diagram of the serial port latitude and longitude information window of the present invention;

[0059] Figure 6 This invention relates to the 3D map display; Detailed Implementation

[0060] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0061] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product.

[0062] For reference Figure 2 As shown, this invention provides an electronic map of a subway protection zone based on a self-generated positioning system. It constructs an electronic map platform that integrates geographic information, protection zone boundaries, key facilities, and other information to achieve a visual display of the subway protection zone. Inspection personnel can access this electronic map via smart terminals to view the real-time status of the protection zone, receive inspection tasks, and record inspection data.

[0063] The specific steps, as an embodiment of the present invention, are as follows:

[0064] Step 1: Acquire image data of the subway protection zone using satellite remote sensing technology to help inspection personnel understand the overall layout and changes of the protection zone. Satellite positioning provides accurate navigation services for inspection personnel, ensuring they can conduct inspections along predetermined routes.

[0065] Step 2: The terminal is equipped with an electronic map application, which receives satellite and base station signals to achieve positioning and navigation functions. Inspection personnel use the terminal to view the electronic map, receive task instructions, record inspection data, and communicate with the server.

[0066] Step 3: The base station is responsible for providing wireless communication services to ensure unimpeded communication between the inspection personnel's terminal and the server, enabling real-time data transmission and synchronization.

[0067] Step 4: The server stores and manages geographic information, inspection tasks, and inspection data for the subway protection zone. It receives data from satellites, base stations, and inspection personnel terminals, processes and analyzes it, and returns the results to the inspection personnel's terminals. Simultaneously, the server can back up and restore inspection data to ensure data security and integrity.

[0068] Step 5: Inspection personnel receive task instructions through the terminal, conduct inspections according to the navigation of the electronic map, record abnormal situations, and upload the data to the server.

[0069] The system receives base station signals through a wireless communication module, obtains data such as base station ID and signal strength, and preprocesses the collected data, including filtering and noise reduction, to improve data quality.

[0070] refer to Figure 4 As shown, in order to estimate the internal state of the observed process from a series of noisy observation data using a Kalman filter, the data processing process must be modeled within the framework of Kalman filtering.

[0071] For each step k, define matrix F. k H k Q k R k B k The Kalman filter model assumes that the true state at time k+1 evolves from the state at time k, conforming to the state equation: x k =F k x k-1 +B k u k +w k , of which F k It acts on x k-1 The state transition model on B k It acts on the controller vector u k The input-control model on, w k It is process noise, and it is assumed to have a mean of zero and a covariance matrix of Q. k The multivariate normal distribution, w k ~N(0,Q) k ), where cov{w(k)}=Q(k) represents the covariance matrix;

[0072] For reference Figure 5 As shown, the present invention provides an electronic map of a subway protection zone based on a self-generated positioning system. It collects BeiDou data information through a positioning chip, converts the BeiDou data into GPS data, and then converts it into the latitude and longitude information required for the map.

[0073] By using multi-frequency ranging and multipath radiation technology, the fused positioning results are further optimized, and the optimized positioning results are output in the form of latitude, longitude, speed, direction, etc., for use by users or related applications.

[0074] For reference Figure 6 As shown, the present invention provides an electronic map of a subway protection zone based on a self-generating positioning system. The JSAPI 3D map is a new map view effect provided by vector map data. The 3D map is developed based on WEBGL, and while ensuring smoothness, it adds support for functions such as levelless zoom.

[0075] For reference Figure 6 As shown, the present invention provides an electronic map of a subway protection zone based on a self-generated positioning system. The map control includes five plugins: toolbar, scale bar, positioning, eagle eye, and basic layer switching.

[0076] Working Principle: The self-generating system converts mechanical energy into electrical energy, providing a stable power supply for the entire system. The transmitting module wirelessly transmits specific signals or data (including status information and location data related to the subway protection zone). The receiver receives the signals from the transmitting module, decodes and processes them, and extracts useful information. This information is then transmitted to the electronic map platform for processing and display. The GPS positioning module receives signals from GPS satellites and calculates the precise location of the receiver on the landmark. The NBIOT communication module transmits the collected data (including location information and status data) to a remote server or data center via the NBIOT network. Based on the received data, the electronic map platform updates the status information of the subway protection zone in real time and displays it to relevant personnel. Managers or inspectors can access the electronic map platform to view the real-time status of the protection zone, receive task instructions, and record inspection data.

Claims

1. An electronic map of a subway protection zone based on a self-generated positioning system, characterized in that, The electronic map's self-generating system is equipped with a sensor array, capable of generating its own power and collecting multi-dimensional signals such as the target's position, speed, and direction within the subway protection zone in real time, including: Self-generating technology reduces reliance on traditional power supply modes and improves system reliability and environmental adaptability, making it particularly suitable for scenarios requiring long-term, stable monitoring, such as subway protection zones. The sensor array consists of multiple sensor nodes, which are distributed in key locations within the subway protection zone, forming a dense network for collecting target information from all directions and multiple angles. Each sensor node possesses high sensitivity and accuracy, enabling it to perceive and acquire multi-dimensional signals such as the target's position, velocity, and orientation in real time. The sensor array can acquire the above-mentioned multi-dimensional signals in real time and transmit the data to the data processing unit for further processing and analysis through wireless communication technology.

2. The electronic map of a subway protection zone based on a self-generated positioning system as described in claim 1, characterized in that, The wireless communication technology of the electronic map uses a wireless communication module, which enables real-time data exchange and collaborative work with other security monitoring systems, thereby improving the safety management level of the entire subway protection zone.

3. The electronic map of a subway protection zone based on a self-generated positioning system as described in claim 1, characterized in that, The data processing employs Kalman filtering, which predicts the object's position coordinates and velocity based on the observation sequence of the object's position.

4. The electronic map of a subway protection zone based on a self-generated positioning system as described in claim 1, characterized in that, The target positioning utilizes multiple sensor nodes of a self-generated positioning system to collect multi-dimensional signals of the target within the subway protection zone in real time, including: The data processing unit uses signal fusion algorithms and position estimation techniques to comprehensively process the acquired signals and determine the precise location of the target. The determined location information is transmitted to the electronic map display module in real time, and the real-time location and movement trajectory of the target are displayed on the electronic map in a visual manner; The system receives user commands through a user interface, enabling operations such as zooming, panning, and labeling on the electronic map. Based on user queries or system-preset monitoring rules, corresponding security alerts or prompts are automatically triggered to remind users of potential security risks.

5. The electronic map of a subway protection zone based on a self-generated positioning system as described in claim 4, characterized in that, The data processing method for the electronic map is based on the fourth-generation Web map rendering engine provided free of charge by the Gaode Open Platform.

6. An electronic map of a subway protection zone based on a self-generated positioning system as described in claims 1-5, characterized in that, The positioning technology combines GPS and base station positioning to effectively improve the accuracy of location detection. An electronic map of a subway protection zone based on a self-generated positioning system, characterized in that: The electronic map display module supports switching and overlaying of multiple map layers, including basic geographic layers, real-time monitoring layers, and security warning layers, to meet the viewing and analysis needs of different users.

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