Navigation system and navigation method capable of conveniently inquiring path

Abstract

The invention discloses a navigation system and a navigation method capable of conveniently querying a path, and the navigation method specifically comprises the following steps: 1, collecting multi-source map data through a multi-source map collection module, and improving the accuracy and integrity of the map data; 2, processing and integrating the multi-source map data collected in the step 1, and uploading the processed data to a system for updating a map database; step 3, realizing navigation positioning through a method of combining multiple positioning modes, and improving the positioning precision of navigation; 4, acquiring starting point information and terminal point information input by the user; and step 5, planning a navigation path according to the real-time updated map data obtained in the step 2 and the starting point information and the terminal point information obtained in the step 4, and adjusting the path in real time according to the multiple positioning data obtained in the step 3, so that a more reasonable and efficient navigation path is planned for the user, and meanwhile, the path is dynamically adjusted in real time according to the position and the driving condition of the user. And the navigation convenience is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of navigation systems, and particularly relates to a navigation system and a navigation method capable of conveniently querying paths. Background Art

[0002] Navigation systems play an increasingly important role in fields such as daily life, transportation, and logistics. Existing navigation systems mainly rely on satellite positioning technology and map data to achieve path query and navigation functions.

[0003] However, existing navigation systems have many deficiencies. In terms of map data, due to the continuous changes in the geographical environment, such as the construction, reconstruction, expansion of roads, and the adjustment of traffic rules, the existing map data update methods are often not timely and comprehensive enough. Traditional map data collection mainly relies on professional surveying and mapping teams to conduct on-site collection regularly. This method not only has high costs and low efficiency, but also is difficult to update in real time, resulting in deviations between map data and actual geographical conditions, thus affecting the accuracy of navigation paths. In terms of positioning, in complex environments such as urban high-rise dense areas, mountainous areas, tunnels, and indoor areas, the existing satellite positioning technology is prone to signal occlusion or interference, resulting in a decrease in positioning accuracy or even inability to position, making the navigation system unable to provide accurate navigation services for users in these areas. Summary of the Invention

[0004] The purpose of the present invention is to provide a navigation system and a navigation method capable of conveniently querying paths for the deficiencies of the existing technology.

[0005] The technical solution of the present invention to solve the above problems is: a navigation system capable of conveniently querying paths, including a multi-source map collection module, a map processing module, a multi-location module, a path planning and navigation module, and a user interaction module;

[0006] The multi-source map collection module includes a satellite remote sensing data acquisition unit, a user-reported data receiving unit, and a data docking unit with the transportation department;

[0007] The map processing module is used to process and integrate the data obtained by the multi-source map collection module, and upload the processed data to the system for updating the map database;

[0008] The multi-location module realizes navigation positioning through the combination of multiple positioning methods;

[0009] The path planning and navigation module plans a navigation path according to the updated map data and the start and end point information input by the user, and adjusts the path in real time;

[0010] The user interaction module provides an operation interface for the user to input information and display navigation information.

[0011] A navigation method for conveniently querying paths specifically includes the following steps:

[0012] Step 1, collect multi-source map data through a multi-source map collection module, and through comprehensive analysis of the multi-source map data, achieve comprehensive and real-time update of the map data;

[0013] Step 2, process and integrate the multi-source map data collected in Step 1, and upload the processed data to the system for updating the map database;

[0014] Step 3, achieve navigation positioning through a method combining multiple positioning methods, including three positioning methods: inertial navigation positioning, Bluetooth positioning, and Wi-Fi positioning;

[0015] Step 4, obtain the starting point information and ending point information input by the user;

[0016] Step 5, plan a navigation path based on the real-time updated map data obtained in Step 2, the starting point information and ending point information obtained in Step 4, and adjust the path in real time according to the multiple positioning data obtained in Step 3.

[0017] Furthermore, the multi-source map data includes satellite remote sensing data, user-reported data, and traffic department data;

[0018] The satellite remote sensing data is collected by satellites to obtain high-resolution ground image data, and image recognition technology is used to extract the changes in geographical information such as roads and buildings; the user-reported data is collected by receiving the map data change information reported by the user's navigation device or mobile application, such as road construction and newly opened roads; the traffic department data is collected by real-time docking with the database of the traffic management department to obtain the latest traffic control information, road construction plans, and other data.

[0019] Furthermore, Step 2 specifically includes the following steps:

[0020] S201: Perform image preprocessing on the satellite remote sensing data to remove noise and interference;

[0021] S202: Use a deep learning algorithm to extract features and classify the preprocessed image to identify the changed parts of the map data;

[0022] S203: For the user-reported data and traffic department data, perform data format conversion and verification to ensure the accuracy and consistency of the data;

[0023] S204: Integrate the multi-source data processed in S202 and S203 into the existing map database to achieve real-time update of the map data.

[0024] Further, in step 3, the inertial navigation method is as follows: by measuring the acceleration and angular velocity of the carrier, using the integration algorithm to deduce the position and attitude changes of the carrier, and obtaining inertial navigation positioning data; the Bluetooth positioning method is as follows: by communicating with surrounding Bluetooth beacons, obtaining Bluetooth signal strength information, and using the signal propagation model to calculate the distance from the Bluetooth beacons, thereby obtaining Bluetooth positioning data; the Wi-Fi positioning unit obtains information such as the signal strength and MAC address of the hotspot by scanning the surrounding Wi-Fi hotspots, and uses the Wi-Fi hotspot position information pre-stored in the database to calculate through the positioning algorithm to obtain Wi-Fi hotspot positioning data; then, the inertial navigation positioning data, Bluetooth positioning data, and Wi-Fi hotspot positioning data are fused to obtain multi-location data.

[0025] The present invention has beneficial effects:

[0026] The present invention provides a navigation system that can conveniently query paths. Through the multi-source map data collection module, it can obtain data from multiple aspects such as satellite remote sensing, user reports, and traffic departments in real time, ensuring that the map data can timely reflect the changes in the geographical environment, greatly improving the accuracy and integrity of the map data; through the multi-location module, a composite positioning method combining inertial navigation, Bluetooth positioning, and Wi-Fi positioning is adopted, effectively solving the positioning problems of traditional satellite positioning technology in complex paths and areas with poor signals, and improving the positioning accuracy of navigation; and the path planning and navigation module uses the updated accurate map data and advanced path planning algorithms to be able to plan a more reasonable and efficient navigation path for users, and at the same time dynamically adjusts the path according to the user's position and driving conditions in real time, improving the convenience of navigation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a flowchart of the navigation method in the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0028] A navigation system that can conveniently query paths includes a multi-source map collection module, a map processing module, a multi-location module, a path planning and navigation module, and a user interaction module.

[0029] The multi-source map collection module includes a satellite remote sensing data acquisition unit, a user report data receiving unit, and a traffic department data docking unit.

[0030] The map processing module is used to process and integrate the data obtained by the multi-source map collection module, and upload the processed data to the system for updating the map database.

[0031] The multi-positioning module realizes navigation positioning through the combination of multiple positioning methods, including three positioning methods: inertial navigation positioning, Bluetooth positioning, and Wi-Fi positioning.

[0032] The path planning and navigation module plans a navigation path according to the updated map data and the start and end point information input by the user, and adjusts the path in real time.

[0033] The user interaction module provides an operation interface for the user to input information and display navigation information.

[0034] A navigation method for conveniently querying paths specifically includes the following steps:

[0035] Step 1: Collect multi-source map data through the multi-source map collection module, and comprehensively analyze the multi-source map data to achieve comprehensive and real-time update of the map data;

[0036] The multi-source map data includes satellite remote sensing data, user-reported data, and traffic department data;

[0037] Satellite remote sensing data is collected by satellites to obtain high-resolution ground image data, and image recognition technology is used to extract changes in geographical information such as roads and buildings; the user-reported data is collected by receiving map data change information reported by the user's navigation device or mobile application, such as road construction and newly opened roads; the traffic department data is collected by real-time docking with the database of the traffic management department to obtain the latest traffic control information, road construction plans, and other data.

[0038] Step 2: Process and integrate the multi-source map data collected in Step 1, and upload the processed data to the system for updating the map database, which specifically includes the following steps:

[0039] S201: Perform image preprocessing on the satellite remote sensing data to remove noise and interference and improve image quality;

[0040] S202: Use deep learning algorithms to extract features and classify the preprocessed images to identify the changed parts of the map data;

[0041] S203: For the user-reported data and traffic department data, perform data format conversion and verification to ensure the accuracy and consistency of the data;

[0042] S204: Integrate the multi-source data processed in S202 and S203 into the existing map database to achieve real-time update of the map data.

[0043] Step 3: Realize navigation positioning through the combination of multiple positioning methods, including three positioning methods: inertial navigation positioning, Bluetooth positioning, and Wi-Fi positioning;

[0044] The inertial navigation method is as follows: By measuring the acceleration and angular velocity of the carrier, using the integration algorithm to deduce the position and attitude changes of the carrier, and obtaining inertial navigation positioning data; The Bluetooth positioning method is as follows: By communicating with surrounding Bluetooth beacons, obtaining Bluetooth signal strength information, and using the signal propagation model to calculate the distance from the Bluetooth beacon, thereby obtaining Bluetooth positioning data; The Wi-Fi positioning unit obtains information such as the signal strength and MAC address of the hotspot by scanning the surrounding Wi-Fi hotspots, and uses the Wi-Fi hotspot position information pre-stored in the database to calculate through the positioning algorithm to obtain Wi-Fi hotspot positioning data; Then, the inertial navigation positioning data, Bluetooth positioning data, and Wi-Fi hotspot positioning data are fused to obtain multi-location data, improving the positioning accuracy in complex paths and areas with poor signals.

[0045] Step 4: Obtain the starting point information and ending point information input by the user.

[0046] Step 5: According to the real-time updated map data obtained in Step 2, the starting point information and ending point information obtained in Step 4, plan the navigation path, and adjust the path in real time according to the multi-location data obtained in Step 3;

[0047] During the navigation process, the multi-location data of the user is obtained in real time. According to the driving direction and speed of the user, the navigation path is dynamically adjusted, and accurate and clear navigation guidance is provided to the user through voice prompts and map display methods.

[0048] The above is only a preferred embodiment of the present invention, and it is not a limitation of the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A navigation system for convenient route query, characterized in that: It includes multi-source map collection module, map processing module, multiple positioning module, path planning and navigation module, and user interaction module; The multi-source map collection module includes a satellite remote sensing data collection unit, a user reported data receiving unit and a traffic department data docking unit; The map processing module is used to process and integrate the data obtained by the multi-source map collection module, and upload the processed data to the system for updating the map database; The multi-positioning module realizes navigation positioning by combining multiple positioning methods; The path planning and navigation module plans the navigation path according to the updated map data and the starting point and end point information input by the user, and adjusts the path in real time; The user interaction module provides an operation interface for users to input information and display navigation information.

2. A navigation method for conveniently querying a route, characterized in that: The specific steps include: Step 1, collecting multi-source map data through a multi-source map collection module; Step 2, processing and integrating the multi-source map data collected in step 1, and uploading the processed data to the system for updating the map database; Step 3: Navigation positioning is achieved by combining multiple positioning methods, including three positioning methods based on inertial navigation positioning, Bluetooth positioning and Wi-Fi positioning; Step 4, obtaining the starting point information and the end point information input by the user; Step 5, planning a navigation path according to the real-time updated map data obtained in step 2 and the starting point information and the end point information obtained in step 4, and adjusting the path in real time according to the multiple positioning data obtained in step 3.

3. A navigation method capable of conveniently querying a route according to claim 2, characterized in that: Multi-source map data includes satellite remote sensing data, user-reported data, and transportation department data; Satellite remote sensing data collection obtains high-resolution ground image data through satellites, and uses image recognition technology to extract changes in geographic information such as roads and buildings; the user-reported data collection receives map data change information reported by the user's navigation device or mobile phone application, such as road construction, newly opened roads, etc.; the transportation department data collection obtains the latest traffic control information, road construction planning and other data through real-time docking with the database of the transportation management department.

4. A navigation method capable of conveniently querying a route as claimed in claim 3, characterized in that: Step 2 specifically includes the following steps: S201: Perform image preprocessing on satellite remote sensing data to remove noise and interference; S202: extracting and classifying features of the preprocessed image using a deep learning algorithm to identify the changed parts of the map data; S203: Perform data format conversion and verification on the data reported by users and the data of the transportation department to ensure the accuracy and consistency of the data; S204: The multi-source data processed by S202 and S203 are integrated into the existing map database to achieve real-time update of the map data.

5. A navigation method capable of conveniently querying a route according to claim 2, characterized in that: In step 3, the inertial navigation method is: by measuring the acceleration and angular velocity of the carrier, the position and posture change of the carrier are calculated using an integral algorithm to obtain inertial navigation positioning data; the Bluetooth positioning method is: by communicating with the surrounding Bluetooth beacons, Bluetooth signal strength information is obtained, and the distance to the Bluetooth beacon is calculated using a signal propagation model, thereby obtaining Bluetooth positioning data; the Wi-Fi positioning unit scans the surrounding Wi-Fi hotspots to obtain information such as the signal strength and MAC address of the hotspot, and uses the Wi-Fi hotspot location information pre-stored in the database to obtain Wi-Fi hotspot positioning data through a positioning algorithm; the inertial navigation positioning data, Bluetooth positioning data, and Wi-Fi hotspot positioning data are then fused and processed to obtain multiple positioning data.

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