Method for evaluating inductive effect of navigation product, testing device and construction method for testing device

A technology for navigation products and testing devices, applied to measurement devices, instruments, etc., can solve the problems of high labor cost and time cost, easy to be affected by outdoor traffic conditions and weather, and subjective influence, so as to reduce labor and material costs, reduce Subjective Influence, Effect of Guaranteed Accuracy and Objectivity

Active Publication Date: 2015-03-25
BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD
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AI-Extracted Technical Summary

Problems solved by technology

[0003] The existing technology has the following defects: the cost of manpower and time is very large, and it is necessary to collect corresponding induced data outdoors, which is easily affected by outdoor traffic conditions and weather; the process ...
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Method used

Optionally, in an implementation of this embodiment, as shown in Figure 4, the first GPS point set can be determined in the following manner: for each induced GPS point in the first navigation product, calculate its The shortest distance (i.e. spherical distance) from the GPS route of the second navigation product, if the shortest distance is less than the ratio of the number of induced GPS points of the threshold to the total number of induced GPS points of the first navigation product (this ratio can be called the binding rate) If the preset value is exceeded, a first GPS point set is generated. Determining the first GPS point set according to the bundling rate can increase the number of induced GPS points participating in the comp...
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Abstract

The invention discloses a method for evaluating an inductive effect of a navigation product, a testing device and a construction method for the testing device, wherein the method for evaluating the inductive effect of the navigation product comprises the following steps: drawing induction GPS (global positioning system) points of the navigation product on a map, and saving induction information of the induction GPS points of the navigation product so as to display corresponding induction information when operating the induction GPS points; associating the induction GPS points of the navigation product with street view images in a street view map so as to display corresponding street view images when operating the induction GPS points; evaluating whether the induction information of the navigation product is accurate according to the displayed induction information and the displayed street view images when operating the induction GPS points. According to the method for evaluating the inductive effect of the navigation product, the testing device and the construction method for the testing device, an indoor evaluating manner is provided, so that the costs of manpower and material resources are reduced, the influence of weather, traffic and the like on evaluation is avoided, the subjective influence of evaluators is reduced, and the accuracy and the objectivity of evaluation results are guaranteed.

Application Domain

Technology Topic

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  • Method for evaluating inductive effect of navigation product, testing device and construction method for testing device
  • Method for evaluating inductive effect of navigation product, testing device and construction method for testing device
  • Method for evaluating inductive effect of navigation product, testing device and construction method for testing device

Examples

  • Experimental program(1)

Example Embodiment

[0044] The various aspects of the present invention will be described in detail below in conjunction with the drawings and specific implementations. Among them, the well-known modules and units and their mutual connections, links, communications or operations are not shown or detailed. Moreover, the described features, architectures or functions can be combined in any manner in one or more embodiments. Those skilled in the art should understand that the following various embodiments are only used for illustration, and are not used to limit the protection scope of the present invention. It can also be easily understood that the modules or units or steps in the various embodiments described herein and shown in the drawings can be combined and designed in various configurations.
[0045] figure 1 It is a schematic flow chart of a method for evaluating the inducing effect of navigation products according to an embodiment of the present invention, refer to figure 1 , The method includes:
[0046] 10: Draw the guidance GPS (Global Positioning System) points of the navigation product on the map, and save the guidance information of the guidance GPS points of the navigation product, so that the corresponding guidance information can be displayed when the guidance GPS points are operated. For example, draw the induced GPS points of navigation products on a two-dimensional map.
[0047] In the present invention, "operation" refers to actions or events such as clicking, mouse rolling, and the like. "Guided GPS points" refer to points that contain navigation guidance related information and corresponding GPS coordinates. Common GPS points only contain corresponding GPS coordinates.
[0048] It should be noted that the “guided GPS points of navigation products” mentioned in the present invention and similar descriptions below do not mean “all induced GPS points of navigation products”, but can be determined according to actual needs. Which of the products induce GPS points. For example, when evaluating the guidance effect of navigation products, if only the guidance effect in Haidian District is evaluated, then it is obvious that the "leading GPS points of navigation products" refer to the guidance GPS points within the Haidian District. That is to say, the present invention does not limit the actual geographical range and map range involved in evaluating navigation products.
[0049] Optionally, in an implementation manner of this embodiment, the following methods can be used, but not limited to, to obtain the guidance GPS points of the navigation product: de-duplication (ie, remove duplicate content) and coordinate conversion according to the vocabulary data of the navigation product Processing (for example, transforming the coordinate form into a form that satisfies the international coordinate system), using the processed data as the input of the navigation product, and running the navigation product (or according to the navigation logic of the navigation product) to obtain the guidance GPS points of the navigation product (for example, Voice guidance GPS points) and guidance information (for example, voice guidance information).
[0050] 12: Associate the guidance GPS point of the navigation product with the street view image in the street view map, so that the corresponding street view image is displayed when the guidance GPS point is operated.
[0051] For example, the guiding GPS point of the navigation product is associated with the street view image in the street view map according to the coordinates of the GPS point of the navigation product and the GPS point coordinates in the street view map.
[0052] 14: Evaluate whether the guidance information of navigation products is accurate based on the guidance information displayed when operating the guidance GPS point and street view images.
[0053] For example, if the guidance information shows that the currently tested guidance GPS point is a traffic light, but according to the street view image, it is found that there is no traffic light at or near the guidance GPS point, then the guidance information of the guidance GPS point is considered inaccurate. Of course, those skilled in the art can flexibly perform comparisons in various ways to determine whether the inducement information is accurate, and the present invention does not specifically limit the comparison methods.
[0054] Using the method provided by the embodiment of the present invention, the navigation guidance information is integrated into the street view, thereby providing an indoor evaluation method. Compared with the existing evaluation technology, the labor and material costs are greatly reduced, and the traffic, weather, etc. The influence reduces the subjective influence of the evaluators and ensures the accuracy and objectivity of the evaluation results.
[0055] Optionally, in an implementation manner of this embodiment, as figure 1 As shown by the dashed box in, the method may further include:
[0056] 11: According to the position relationship between the guidance GPS point of the navigation product and the maneuver point of the navigation product, the guidance GPS point of the navigation product is grouped by the maneuver point type, and the grouping information is saved, so that the maneuver of the guidance GPS point is displayed when the guidance GPS point is operated. Point type.
[0057] For example, first obtain maneuver point information (for example, maneuver point type, coordinates, etc.) from the maneuver point database, and then calculate according to the following logic: figure 2 As shown, suppose there are two points g1 and g2 in the maneuver point list, g2 is behind g1, the point closest to g1 in the GPS point list of the navigation product is b1, and the point closest to g2 is b2. If the interval between b1 and b2 is Denoted as [b1, b2), the maneuver point corresponding to [b1, b2) is considered to be grouped as g2, that is, [b1, b2) and g2 have the same maneuver point type, and so on.
[0058] Optionally, in this implementation manner, different display modes can be set for the guidance GPS points of the navigation product according to the types of maneuvering points. For example, for the maneuver point g1, it may have multiple types (for example, left turn, reference object, U-turn, etc.). At this time, for the first type, the first display mode can be set, for example, the first color The line connects the induced GPS point corresponding to the maneuver point g1; for the second type, a second display mode can be set, for example, the second color line is used to connect the induced GPS point corresponding to the maneuver point g1; and so on. In this way, it is convenient for the evaluator to intuitively determine the maneuver point type of each guidance GPS point on the map, determine the range of the guidance GPS point belonging to the same maneuver point type, and so on.
[0059] 13: Evaluate whether the maneuver point type of the guidance GPS point is accurate according to the maneuver point type displayed when operating the guidance GPS point and the street view image.
[0060] For example, if the maneuvering point type of the currently tested GPS guidance point is a U-turn, but according to the corresponding street view image, it is found that the currently tested guidance GPS point is located on a one-way road and there is no possibility of turning around. The point type is wrong. Similar comparison methods are not detailed one by one, and the present invention does not limit the specific comparison methods.
[0061] By adopting the method provided by this implementation manner, not only the guidance information can be evaluated, but also the maneuver point type corresponding to each guidance GPS point can be evaluated, which improves the data range covered by the evaluation.
[0062] Those skilled in the art should understand that processing 14 can evaluate whether the guidance information of navigation products is accurate based on the guidance information and street view images, precisely because processing 10 and processing 12 (or processing 10, 11, and 12) are used to construct integrated navigation products. Guiding GPS points, guidance information and street view map as a reference test platform/testing device.
[0063] Therefore, in an embodiment of the present invention, processing 10 and processing 12 (or processing 10, 11, and 12) can be used to construct a test platform/test device for evaluating the inducing effect of navigation products. This construction method and the constructed product are within the protection scope of the present invention.
[0064] image 3 It is a method for evaluating the inducing effect of navigation products according to an embodiment of the present invention, refer to image 3 , The method includes:
[0065] 30: Determine the first GPS point set according to the positional relationship between the induced GPS point of the first navigation product and the GPS route of the second navigation product, where the first GPS point set contains the difference between the first navigation product and the second navigation product Induced GPS points whose spherical distance of the GPS route is less than the threshold.
[0066] Optionally, in an implementation manner of this embodiment, as Figure 4 As shown, the first GPS point set can be determined in the following way: For each induced GPS point in the first navigation product, calculate the closest distance (ie spherical distance) between it and the GPS route of the second navigation product, if the closest distance is less than The ratio of the threshold number of induced GPS points to the total number of induced GPS points of the first navigation product (this ratio may be referred to as the bundling rate) exceeds a preset value, and then the first GPS point set is generated. Determining the first GPS point set according to the bundling rate can increase the number of induced GPS points participating in the comparison and further ensure the evaluation quality.
[0067] 32: Draw the guidance GPS points in the first GPS point set and the second GPS point set on the map, and save the guidance information of each guidance GPS point, so as to display the corresponding guidance information when operating the guidance GPS point. Among them, the second The GPS point set contains the induced GPS points of the second navigation product.
[0068] In this embodiment, the GPS route of the second navigation product includes the induced GPS points of the second navigation product and the ordinary GPS points of the second navigation product. In an implementation of this embodiment, the second navigation product can collect a common GPS point set during actual navigation, and add guidance information to some GPS points in the common GPS point set, thereby generating the GPS route of the second navigation product.
[0069] Optionally, in an implementation manner of this embodiment, in order to facilitate distinguishing the induced GPS points in the first GPS point set and the second GPS point set, it may be the induced GPS points in the first GPS point set and the second GPS point. Set different display modes for the centralized guidance GPS points, for example, set the guidance GPS points in the first GPS point concentration to the third color or first shape, and set the guidance GPS points in the second GPS point concentration to be different from the third color A fourth color or a second shape different from the first shape, etc.
[0070] 34: Associate the guiding GPS points in the first GPS point set and the second GPS point set with the street view image of the street view map, so that the corresponding street view image is displayed when the guiding GPS point is operated.
[0071] 36: Evaluate whether the guidance information of at least one of the first navigation product and the second navigation product is accurate according to the guidance information displayed when operating the guidance GPS point and the street view image.
[0072] For example, if the guidance information of the guidance GPS point of the currently tested second navigation product shows a speed limit of 50km/h ahead, and the guidance information of the guidance GPS point of the first navigation product that is adjacent or the same as the guidance GPS point shows forward The speed limit is 40km/h. At this time, you can search for speed limit signs based on nearby street view images to determine which kind of guidance information is accurate. Similar comparison methods are not described in detail one by one, and the present invention does not limit the specific comparison methods.
[0073] Using the method provided in this embodiment, by integrating navigation guidance information into the street view, an indoor evaluation method is provided, which greatly reduces the labor and material costs, and ensures the accuracy and objectivity of the evaluation result. In addition, by combining and comparing the guidance information of the first navigation product and the guidance information of the second navigation product, and using the corresponding street view as a reference, not only can the navigation product be evaluated more comprehensively and accurately, but it is also helpful to determine the need for optimization Data and the direction of data optimization.
[0074] Optionally, in an implementation manner of this embodiment, as image 3 As shown by the dotted box, the method further includes:
[0075] 31: According to the position relationship between the guiding GPS points in the first GPS point set and the second GPS point set and the maneuvering points of the second navigation product, the guiding GPS points in the first GPS point collection and the guiding GPS points in the second GPS point collection are collected Group by maneuver point type and save group information.
[0076] Among them, the processing 31 can be implemented using the following steps. First, bind the induced GPS points in the first GPS point to the GPS route of the second navigation product (such as Figure 4 As shown by the dashed arrow in the “Road Tie” refers to binding the induced GPS points to the nearest road network) to obtain the processed GPS route, where the processed GPS route includes both the first GPS point set and the first GPS point set. 2. The induced GPS points in a collection of GPS points; then, according to the position relationship between each induced GPS point on the processed GPS route and the maneuver point of the second navigation product, determine the route segment corresponding to each maneuver point on the processed GPS route; Finally, according to the guidance GPS points on each route segment and the maneuver points corresponding to each route segment, the guidance GPS points in the first GPS point concentration and the guidance GPS points in the second GPS point concentration are grouped by maneuver point type (more specific grouping) Way with figure 2 The grouping method shown is similar, and will not be repeated here).
[0077] In this implementation manner, during or after processing 31, different display modes may be set for the induced GPS points in the first GPS point set and the second GPS point set according to the maneuver point type. For example, the first color connecting line is used to connect the first GPS point set and the induced GPS points in the second GPS point set to indicate that these induced GPS points correspond to the first maneuver point type; the second color connecting line is used to connect the first GPS point Set and the induced GPS points in the second GPS point set to indicate that these induced GPS points correspond to the second maneuver point type. In this way, the evaluator can intuitively determine the maneuver point type of each guidance GPS point, determine the range of the guidance GPS point belonging to the same maneuver point type, etc. on the map.
[0078] 35: Evaluate whether the maneuver point type of the induced GPS point is accurate according to the maneuver point type displayed when operating the GPS point and the street view image.
[0079] For example, if the maneuver point type of the GPS guidance point of the clicked second navigation product is a left turn, the maneuver point type of the guidance GPS point of the first navigation product adjacent to the guidance GPS point is also a left turn, but according to the corresponding If the street view image finds that it can only go straight and cannot turn left, it is considered that the maneuver point type of the GPS guidance point of the first navigation product is not accurate.
[0080] Using the method provided by this implementation manner, not only the guidance information can be evaluated, but also the maneuver point type corresponding to each guidance GPS point can be evaluated, which improves the data range covered by the evaluation.
[0081] In addition to the above-mentioned embodiments or implementations, in another embodiment of the present invention, the above-mentioned processing 30, 32, and 34 (or processing 30, 31, 32, and 34) can be used to construct an inducing effect for evaluating navigation products. Test platform/test device. This construction method and the constructed product are within the protection scope of the present invention.
[0082] Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented by means of software combined with a hardware platform. Based on this understanding, all or part of the contribution of the technical solution of the present invention to the background technology can be embodied in the form of a software product, and the computer software product can be stored in a storage medium, such as ROM/RAM, magnetic disk, optical disk, etc. , Including several instructions to make a computer device (which can be a personal computer, a server, a smart phone or a network device, etc.) execute the method described in each embodiment or some parts of the embodiment of the present invention.
[0083] The terms and expressions used in the specification of the present invention are only for illustration and do not mean to constitute a limitation. Those skilled in the art should understand that various changes can be made to the details of the above-mentioned embodiments without departing from the basic principles of the disclosed embodiments. Therefore, the scope of the present invention is only determined by the claims. In the claims, unless otherwise specified, all terms should be understood in the broadest and reasonable sense.
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