Method and system for automatically generating examination room route guidance
By obtaining the locations of feature points in electronic maps and 2D maps, establishing a comprehensive map and adding route guidance points, multiple guidance routes and point-expanded routes are generated. This solves the cumbersome problem of candidates checking routes in large examination halls, enables candidates to conveniently check the examination hall road routes before arriving at the examination hall, and improves candidates' familiarity with the examination hall terrain, facilitating subsequent examinations.
Patent Information
- Application Number
- CN202310212325.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-03-07
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2043-03-07
AI Technical Summary
Before taking a driving test, candidates need to check the conditions of multiple test roads in a large test center. Existing technology cannot obtain the test site road route in real time before arriving at the test center, making it cumbersome and inconvenient to check the route.
By obtaining the locations of feature points on electronic maps and 2D maps, a comprehensive map is established, and route guidance points are added to the comprehensive map to generate multiple guidance routes. Users can choose to drive within the guidance route, and during the driving process, point-based expansion routes are generated to replace the original routes and guide users to the test site.
It enables candidates to conveniently check the road route to the examination venue before arriving at the venue, solves the cumbersome problem of candidates checking the route in large examination venues, improves candidates' familiarity with the terrain of the examination venue, and facilitates subsequent examinations.
Smart Images
Figure CN116086480B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of examination room route guidance, and in particular to a method and system for automatically generating examination room route guidance. Background Art
[0002] In the current social environment, more and more people are taking driving tests, which require passing a written test and actual driving operations. Before actually driving, users need to arrive at the designated driving test location to take the driving test.
[0003] Due to the large number of users, the driver's license test center has a large test site to accommodate a large number of users and candidates for simultaneous testing. Therefore, all current candidates will arrive at the test site before the test and check the test road route within the test site route to facilitate the subsequent driver's license test.
[0004] Regarding the above-mentioned examination venue, the user can only view it after arriving at the examination venue. How to view the examination venue route in real time during the process of arriving at the examination venue, so as to save the user the tediousness of subsequent route viewing, is a problem to be solved.
[0005] Secondly, there are multiple test roads in the examination hall. How to quickly check and understand the conditions of multiple test roads is an urgent problem that needs to be solved. Summary of the Invention
[0006] The purpose of the present invention is to provide a method and system for automatically generating examination room route guidance to solve the problems raised in the above background technology.
[0007] To achieve the above objectives, one of the objectives of the present invention is to provide a method for automatically generating examination room route guidance, comprising the following steps:
[0008] S1. Obtain the locations of the same feature points in the electronic map and the 2D map;
[0009] S2. Create a comprehensive map based on the locations of the same feature points, and add route guidance points to the comprehensive map;
[0010] S3. Generate multiple guidance routes according to the route guidance points;
[0011] S4. When driving along the guidance route selected by the user, generating other road routes passing through the examination center within the guidance route, and recording the other road routes passing through the examination center as point-extension routes;
[0012] S5. When the user changes the original guidance route to a point-expanded route, a driving route passing through another road of the test site is established based on the point-expanded route.
[0013] As a further improvement of the present technical solution, the method of obtaining the same feature point positions in the electronic map and the 2D map specifically involves first obtaining multiple feature points in the 2D map, comparing the positions in the electronic map with the multiple feature points in the 2D map, determining the same feature point positions in the electronic map and the 2D map, and establishing a comprehensive map based on these.
[0014] As a further improvement of this technical solution, when establishing a comprehensive map based on the same feature point positions, a comparison algorithm is used for implementation, and the algorithm steps are as follows:
[0015] Step 1: Get the location of road feature points in the 2D map;
[0016] Step 2: Extract image features at the road feature point locations in the 2D map;
[0017] Step 3: Find the road coordinates in the electronic map that match the image features based on the image features of the road feature point positions;
[0018] Step 4: Pick up the coordinate points in the electronic map that have the same feature positions as the image features to form a comprehensive map.
[0019] As a further improvement of this technical solution, the route guidance points are added to the comprehensive map in the form of arrows, and the route guidance points are set according to the environment construction and real-time distance in the comprehensive map. The specific situation of the environment construction is as follows:
[0020] When a certain area in the integrated map is relatively empty and has no architectural signs, the number of route guidance points added increases;
[0021] When a certain area in the comprehensive map has densely packed buildings and too many architectural signs, the number of route guidance points added should be increased;
[0022] The specific situation based on real-time distance is as follows:
[0023] When the road is a straight line, add route guidance points at equal intervals:
[0024] When there is an intersection on the road, the number of route guidance points added at the intersection increases.
[0025] As a further improvement of the present technical solution, the multiple guidance routes are affected by the positions of the initial route guidance points when they are generated, and when the user drives according to the guidance routes, the route guidance points guide the user.
[0026] As a further improvement of this technical solution, when driving according to the guidance route, other road routes of the test site are generated based on the route guidance points within the guidance route, and the other road routes passing through the test site are recorded as point expansion routes, and the original driving route is replaced by the point expansion route.
[0027] As a further improvement of this technical solution, when driving according to the point-expanded route, a driving route passing through another road of the examination center is re-established based on the point-expanded route. The driving route of the other road of the examination center is different from the above-mentioned route passing through the examination center road.
[0028] A second object of the present invention is to provide a route generation system for implementing any of the above-mentioned methods for automatically generating route guidance for an examination center, comprising at least:
[0029] A feature point extraction module is used to obtain the locations of the same feature points in the electronic map and the 2D map;
[0030] A map generation and guidance module, wherein the map generation module is used to create a comprehensive map based on the locations of the feature points and to add route guidance points to the comprehensive map to guide the user's driving;
[0031] A multiple route generation module, wherein the multiple route generation module generates a guidance route based on the route guidance points, establishes other road routes passing through the examination center within the guidance route, and records the other road routes passing through the examination center as point-extended routes;
[0032] A route replacement module is used to expand the route by points to establish a driving route passing through another road of the examination center, and replace the original driving route with the driving route passing through another road of the examination center.
[0033] Compared with the prior art, the present invention has the following beneficial effects:
[0034] In the method and system for automatically generating route guidance for an examination room, a comprehensive map is constructed and route guidance points are added to the comprehensive map to guide users to the required examination room location;
[0035] Establish multi-directional guidance routes based on the location of route guidance points, solving the problem of users having a single driving route and giving users travel options;
[0036] Based on the point expansion route generated for the examination center road within the guidance route, the user can view the route of the examination center road when driving through the point expansion route, thereby meeting the user's needs to reach the destination and guiding the user to drive on the route of the examination center road, making it easier for the user to view and understand the terrain related to the examination center, which is beneficial for the user to take the test on the examination center road later. BRIEF DESCRIPTION OF THE DRAWINGS
[0037] Figure 1 It is the overall flow chart of the present invention;
[0038] Figure 2 It is an overall block diagram of the present invention. DETAILED DESCRIPTION
[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.
[0040] See also Figure 1 As shown, this embodiment provides a method for automatically generating examination room route guidance, including the following steps:
[0041] S1. Obtain the locations of the same feature points in the electronic map and the 2D map;
[0042] S2. Create a comprehensive map based on the locations of the same feature points, and add route guidance points to the comprehensive map;
[0043] S3. Generate multiple guidance routes according to the route guidance points;
[0044] S4. When driving along the guidance route selected by the user, generating other road routes passing through the examination center within the guidance route, and recording the other road routes passing through the examination center as point-extension routes;
[0045] S5. When the user changes the original guided route to a point-based route expansion, a driving route passing through another road of the test center is established based on the point-based route expansion;
[0046] With reference to the above, in this solution, first, by obtaining the locations of the same feature points in the electronic map and the 2D map, the locations of the selected feature points are made to be the same in the electronic map and the 2D map. Then, a synthetic comprehensive map is created based on the above feature points. The comprehensive map allows users to accurately and conveniently observe the location of the test center. Then, route guidance points are added to the comprehensive map. That is, route guidance points are added at intervals in the comprehensive map to facilitate users to reach the required test center location according to the route guidance points. The route guidance points are marked with arrows, and the route guidance points also mark shops and buildings near the road to facilitate user understanding and familiarity.
[0047] Among them, because the location that the user needs to reach is predetermined, multiple guidance routes can be generated under the initial route guidance point. That is, multiple guidance routes are generated from the initial route guidance point to multiple directions, solving the current problem of a single route and allowing users to choose their travel options. This is convenient for users to meet other considerations while reaching the required test location;
[0048] Next, when the user drives according to the selected guidance route, other road routes passing through the examination center will be generated within the guidance route, that is, the vehicle driving routes, vehicle entry and exit points in the examination center, so as to remind users that they can pass through such routes, which is convenient for users to experience and understand the exact situation of the examination center, which is beneficial for subsequent examinations, and the vehicle driving routes, vehicle entry and exit points will be recorded as point expansion routes. When the user changes the original guidance route and selects an expansion route, a driving route passing through other roads of the examination center will be established based on the point expansion route, that is, it will be constructed based on the location of the point expansion route, so that users can view the examination center and road point conditions on the point expansion route. At the same time, other driving routes related to the examination center roads or points will be established to guide users to drive on this route, so that users can view and understand the terrain related to the examination center, which is beneficial for users to take examinations on the examination center roads in the future.
[0049] The technical solutions mentioned above are described in detail below to facilitate understanding and implementation by professionals in this field:
[0050] To obtain the same feature point locations in the electronic map and the 2D map, the specific method is to first obtain multiple feature points in the 2D map, compare the locations in the electronic map with the multiple feature points in the 2D map, determine the same feature point locations in the electronic map and the 2D map, and establish a comprehensive map based on this. Through the establishment of the comprehensive map, users can intuitively view the locations of the examination centers on the comprehensive map, which makes it easier for users to understand the examination centers and drive towards the examination centers.
[0051] Among them, when building a comprehensive map based on the same feature point location, a comparison algorithm is used to implement it. The algorithm steps are as follows:
[0052] Step 1: Get the location of road feature points in the 2D map;
[0053] Step 2: Extract image features at the road feature point locations in the 2D map;
[0054] Step 3: Find the road coordinates in the electronic map that match the image features based on the image features of the road feature point positions;
[0055] Step 4: Pick up the coordinate points in the electronic map with the same feature positions as the image features to form a comprehensive map; the above algorithm steps are illustrated as follows: obtain the positions of the feature points of the examination room road in the 2D map, analyze the solid lines, dotted lines or road signs on the examination room road based on the positions of the feature points in the examination room road image, and then use the above feature points to find the coordinate points in the electronic map with the same feature positions as the image features. After determining the coordinate points, the coordinate points of the electronic map are merged with the positions of the image feature points to generate a comprehensive map for users to use, so as to facilitate guidance for entering the examination room.
[0056] Then, the route guidance points are added to the integrated map in the form of arrows, and the route guidance points are set according to the environmental construction and real-time distance in the integrated map. The specific conditions of the environmental construction are as follows:
[0057] When a certain area in the integrated map is relatively empty and has no architectural signs, the number of route guidance points added increases;
[0058] When a certain area in the comprehensive map has densely packed buildings and too many architectural signs, the number of route guidance points added should be increased;
[0059] The specific situation based on real-time distance is as follows:
[0060] When the road is a straight line, add route guidance points at equal intervals:
[0061] When there is an intersection on the road, the number of route guidance points added at the intersection is increased;
[0062] The above-mentioned architectural signs refer to buildings on the road. Furthermore, according to the environmental construction conditions in the above-mentioned comprehensive map, the number of route guidance points is increased accordingly to facilitate user understanding and reduce the possibility of users getting lost or confused during driving. When the road is a straight line, it means that the road is easy for users to see intuitively, and route guidance points can be added at equal distances without excessive addition. When there is an intersection on the road, the number of route guidance points added at the intersection is increased to facilitate users to become more familiar with the terrain of the road. At the same time, users are guided to the location of the test site, providing users with convenient road guidance.
[0063] Among them, when multiple guidance routes are generated, they are affected by the positions of the initial route guidance points, and when the user drives according to the guidance routes, the route guidance points guide the user. In this solution, when the guidance routes are generated, they change according to the positions of the initial route guidance points, and the guidance routes have multiple directions. That is to say, there are multiple reverse guidance routes on the route guidance points, so as to provide users with multiple route choices and will not limit the users. When the user encounters some other matters while driving towards the examination center, such as printing test-related documents, the existence of route guidance points can guide the user to choose the guidance route passing through the printed document location, providing convenience to the user; secondly, the driving involved in this solution can be riding or walking, and can also be applied to driving a vehicle.
[0064] In order to further improve the user's familiarity with the examination center roads before the test, when driving according to the guided route, a route passing through other roads of the examination center is generated based on the route guidance points within the guided route, and the route passing through other roads of the examination center is recorded as a point extension route, and the original driving route is replaced by the point extension route. When the user drives to one of the route guidance points, a route of other roads of the examination center close to the location of the route guidance point is established based on the location of the route guidance point, and the route passing through other roads of the examination center is recorded as a point extension route. The end point of the point extension route is the same as the end point of the guided route, which is a route different from the guided route. For example, when the guided route is a straight line, the point extension route can be a zigzag line with the same end point, and then pass through other roads of the examination center. Therefore, when the user changes the original driving route and drives along the point extension route, the user's need to reach the destination is met, and the user can also view other road routes in the examination center during driving, thereby improving the user's familiarity with the examination center roads before the test.
[0065] Among them, when driving according to the point-expanded route, the point-expanded route is used to re-establish a driving route passing through other roads of the test center. The driving route of other roads of the test center is different from the above-mentioned route passing through the test center road. Because the user drives according to the point-expanded route, the driving route passing through other roads of the test center is re-established by using the route guidance points in the point-expanded route. This is changed relative to the point-expanded route. Therefore, it is different from the above-mentioned route passing through other roads of the test center and the point-expanded route. When the point-expanded route reaches the same destination, the route passing through other roads of the test center is established to satisfy the user again so that the user can view the situation different from the above-mentioned and related to the test center road. Furthermore, the three types of guidance routes constructed by the guidance route, the point-expanded route, and the driving route of other roads can enable the user to fully and specifically understand the information about the test center site, which is convenient for the user to take the driver's license test in the test center.
[0066] See also Figure 2 As shown, the second object of the present invention is to provide a route generation system for implementing any of the above-mentioned methods for automatically generating route guidance for an examination room, comprising at least:
[0067] Feature point extraction module, which is used to obtain the locations of the same feature points in the electronic map and the 2D map;
[0068] The map generation and guidance module is used to create a comprehensive map based on the location of feature points, and add route guidance points to the comprehensive map to guide users to travel.
[0069] Multiple route generation module, the multiple route generation module generates a guidance route based on the route guidance points, and establishes other road routes passing through the examination center within the guidance route, and records the other road routes passing through the examination center as point expansion routes;
[0070] Route replacement module, which is used to establish a driving route passing through another road of the test site by expanding the route with points, and replace the original driving route with the driving route passing through another road of the test site;
[0071] With reference to the above, in this route generation system, by obtaining the same multiple feature point positions in the electronic map and the 2D map, a comprehensive map is established with the multiple feature point positions, and by adding route guidance points on the comprehensive map, the route guidance points are used to guide the user to drive, which is beneficial for the user to reach the required test site location, and then, multiple guidance routes are generated under the route guidance points, and multiple guidance routes are generated in multiple directions from the initial route guidance points. The guidance routes in multiple different directions are used to facilitate the user's travel. According to the guidance route selected by the user, a route passing through the guidance route will be generated within the guidance route. Other road routes in the examination center, this route will be recorded as a point expansion route. When the user drives along the point expansion route, he can understand other road routes in the examination center, which is beneficial for subsequent examinations in the examination center; then, when the route is expanded through the point, a driving route passing through another road of the examination center is established, and other driving routes related to the examination center roads or points are re-determined to guide the user to drive on this route, so that the user can view and understand the terrain related to the examination center. Finally, since this route generation system is designed to adapt to the above-mentioned method, we will not go into details here, and you can refer to the above-mentioned automatic generation method of examination center route guidance.
[0072] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.
Claims
1. A method for automatically generating examination room route guidance, characterized by: The steps include: S1. Acquire the locations of identical feature points in the electronic map and the 2D map. Specifically, acquiring the locations of identical feature points in the electronic map and the 2D map comprises first acquiring a plurality of feature points in the 2D map. S2. Create a comprehensive map based on the locations of the same feature points, and add route guidance points to the comprehensive map; Compare multiple feature points in the 2D map to their locations in the electronic map, identify the locations of feature points in the electronic map that are identical to those in the 2D map, and use these locations to create a comprehensive map. Creating a comprehensive map based on the locations of these identical feature points is accomplished using a comparison algorithm, the algorithm steps of which are as follows: Step 1: Get the location of road feature points in the 2D map; Step 2: Extract image features at the road feature point locations in the 2D map; Step 3: Find the road coordinates in the electronic map that match the image features based on the image features of the road feature point positions; Step 4: extract the coordinate points in the electronic map with the same feature positions as the image features to form a comprehensive map; S3. Generate multiple guidance routes according to the route guidance points; S4. When driving along the guided route selected by the user, other road routes passing through the examination center are generated within the guided route, namely, vehicle driving routes and vehicle entry and exit points in the examination center, and the user is prompted that such routes may be passed, so that the user can understand the exact situation of the examination center in advance, which is beneficial for subsequent examinations at the examination center, and the routes passing through the vehicle driving routes and vehicle entry and exit points are recorded as point expansion routes; S5. When the user changes the original guidance route to a point-expanded route, a driving route passing through another road of the examination center is established using the point-expanded route. The driving route of the other road of the examination center is different from the other road routes of the examination center passed by the original guidance route.
2. The method for automatically generating examination room route guidance according to claim 1, characterized in that: The route guidance points are added to the comprehensive map in the form of arrows, and the route guidance points are set according to the environment construction and real-time distance in the comprehensive map. The specific situation of the environment construction is as follows: When a certain area in the integrated map is relatively empty and has no architectural signs, the number of route guidance points added increases; When a certain area in the comprehensive map has densely packed buildings and too many architectural signs, the number of route guidance points added should be increased; The specific situation based on real-time distance is as follows: When the road is a straight line, add route guidance points at equal intervals: When there is an intersection on the road, the number of route guidance points added at the intersection increases.
3. The method for automatically generating examination room route guidance according to claim 1, characterized in that: When the multiple guidance routes are generated, they are affected by the positions of the initial route guidance points, and when the user drives according to the guidance routes, the route guidance points guide the user.
4. A route generation system for implementing the method for automatically generating route guidance for an examination room according to any one of claims 1 to 3, characterized in that: At least: A feature point extraction module is used to obtain the locations of the same feature points in the electronic map and the 2D map; A map generation and guidance module, which is used to create a comprehensive map based on the locations of the feature points and add route guidance points to the comprehensive map to guide the user's driving; A multiple route generation module, wherein the multiple route generation module generates a guidance route based on the route guidance points, establishes other road routes passing through the examination center within the guidance route, and records the other road routes passing through the examination center as point-extended routes; A route replacement module is used to expand the route by points to establish a driving route passing through another road of the examination center, and replace the original driving route with the driving route passing through another road of the examination center.