TW201800926A - Electronic map processing method, device and system - Google Patents

Abstract

An electronic map processing method, device and system. The method comprises: obtaining a movement speed of a vehicle; determining a first scale corresponding to the movement speed; and adjusting the scale of an electronic map into the first scale. The method, device and system provide an electronic map processing approach of adjusting the scale of an electronic map according to the movement speed of a vehicle.

Description

Electronic map processing method, equipment and system

The present invention relates to electronic map technology, and more particularly, to an electronic map processing method, device, and system.

With the development of the automotive industry and the advancement of automotive intelligence, the automotive driving experience has become the focus of attention of car manufacturers and users. In order to improve the driving experience, most cars on the market are currently equipped with navigation functions. The navigation function can support the travel of car users by means of electronic maps.

In reality, under different circumstances, car users have different requirements for the display scale of electronic maps. For example, when turning, bifurcation, and high-speed entrances such as non-closed or non-straight road sections, car users often need to carry out driving directions. Judging, at this time, the electronic map needs to be displayed on a smaller scale, and on closed or straight sections, the electronic map can be displayed on a larger scale. To solve this problem, the current main solution is to set a scale enlargement point on the electronic map in advance and change the scale according to the distance between the car and the scale enlargement point. However, the disadvantage of this method is that it can only be used in the navigation state. Function, that is, it can only be set When the navigation end point is reached. However, in the cruise state (that is, no navigation end point is set), because the zoom point appears randomly, the scale of the electronic map cannot be automatically adjusted at this time. Therefore, the current electronic maps still have shortcomings in the automatic adjustment of the scale, and the user experience is poor.

The invention provides an electronic map processing method, device and system, so as to provide at least one electronic map processing method for adjusting the scale of the electronic map according to the moving speed of a vehicle.

In a first aspect, the present invention provides an electronic map processing method, which includes: obtaining a moving speed of a vehicle; determining a first scale corresponding to the moving speed; and adjusting the scale of the electronic map to the first scale.

In a second aspect, the present invention provides a vehicle-mounted device, including: an acquisition module for acquiring a moving speed of a vehicle; a first determining module for determining a first scale corresponding to the moving speed; and an adjusting module for The scale of the electronic map is adjusted to the first scale.

In a third aspect, the present invention provides an in-vehicle device, including: an input device, a processor, and a display element, the display element is used to display an electronic map; wherein the processor is respectively connected to the input device and the display device. Display element The input device is used to obtain the moving speed of the vehicle; the processor is used to determine a first scale corresponding to the moving speed; the processor is further used to convert the electronic map The scale is adjusted to the first scale.

In a fourth aspect, the present invention provides a user interface system, including: a processor element and a display element; the display element is used to display an electronic map; and the processor element is used to determine a corresponding speed of a vehicle A first scale; the processor element is further configured to adjust the scale of the electronic map to the first scale, so that the display element displays the electronic map at the first scale.

In a fifth aspect, the present invention provides a navigation system for a vehicle-mounted device, including: an on-board input device, an on-board processor, and an on-board display element, wherein the on-board display element is used to display an electronic map; wherein the on-board processing The onboard input device and the onboard display element are respectively coupled; the onboard input device is used to obtain the moving speed of the vehicle; and the onboard processor is used to determine that the moving speed corresponds to The first scale; the onboard processor is further configured to adjust the scale of the electronic map It is adjusted to the first scale, so that the onboard display element displays the electronic map at the first scale.

According to a sixth aspect, the present invention provides a vehicle-mounted Internet operating system, including: an input control unit that controls an on-board input device to obtain a moving speed of a vehicle; a processing control unit that determines a first scale corresponding to the moving speed; The control unit adjusts the scale of the electronic map to the first scale after the processing control unit determines a first scale corresponding to the moving speed.

In the present invention, the scale of the electronic map is determined according to the moving speed of the vehicle by obtaining the moving speed of the vehicle, so that the electronic map is displayed at a scale suitable for the current moving speed of the vehicle, which ensures that the electronic map is In cruise mode, the scale can also be adjusted automatically according to the moving speed of the vehicle; and the combination of the processing of the electronic map and the driving behavior of the user can always ensure that the display scale of the electronic map matches the driving behavior of the user. Beneficial to improve driving safety and electronic map experience.

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11‧‧‧Get Module

12‧‧‧First Confirmation Module

13‧‧‧ Adjustment module

14‧‧‧ Third Confirmation Module

15‧‧‧Fourth Confirmation Module

16‧‧‧Second Confirmation Module

17‧‧‧Processing Module

21‧‧‧ input device

22‧‧‧Processor

23‧‧‧Display element

31‧‧‧Processor element

32‧‧‧Display element

41‧‧‧ Airborne Input Device

42‧‧‧ airborne processor

43‧‧‧Airborne display element

51‧‧‧input control unit

52‧‧‧Processing Control Unit

53‧‧‧Display control unit

In order to more clearly explain the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are Some embodiments of the invention, for those skilled in the art, can also obtain other drawings according to these drawings without paying progressive labor.

FIG. 1 is a schematic flowchart of an electronic map processing method according to an embodiment of the present invention; FIG. 2a is a schematic diagram of a relationship between speed and scale provided by the present invention; FIG. 2b is a user interface before scale change provided by the present invention Schematic diagram; Figure 2c is a schematic diagram of the user interface after changing the scale on the basis of Figure 2b; Figure 3 is a schematic flowchart of an electronic map processing method according to an embodiment of the present invention; Figure 4a is a distance and scale Schematic diagram of the change relationship; Fig. 4b is a schematic diagram of the user interface before the scale change according to the present invention; Fig. 4c is a schematic diagram of the user interface after the scale is changed on the basis of Fig. 4b; A schematic flowchart of an electronic map processing method; FIG. 6 is a schematic structural diagram of an in-vehicle device provided by an embodiment of the present invention; FIG. 7 is a schematic structural diagram of an in-vehicle device provided by an embodiment of the present invention FIG. 8 is a schematic structural diagram of an in-vehicle device provided by an embodiment of the present invention; FIG. 9 is a schematic structural diagram of an in-vehicle device provided by an embodiment of the present invention; and FIG. 10 is a structure of a user interface system provided by an embodiment of the present invention 11 is a schematic structural diagram of a vehicle-mounted device navigation system provided by an embodiment of the present invention; and FIG. 12 is a schematic structural diagram of a vehicle-mounted Internet operation system provided by an embodiment of the present invention.

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same digits in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present invention. Rather, they are merely examples of devices and methods consistent with some aspects of the invention as detailed in the scope of the appended patent application.

The invention provides a method for processing an electronic map, which can change the scale of the electronic map according to the moving speed of a vehicle. The vehicle related to the present invention may be any vehicle, and may also be another vehicle having an electronic map function. The vehicle may be, for example, an internal combustion engine vehicle, an electric vehicle, a gas road vehicle, an oil-gas hybrid vehicle, an oil-electric hybrid vehicle, or an electric vehicle. Mopeds and various deformations; other vehicles with electronic map functions can be, for example, small aircrafts, yachts, and various deformations.

The working modes of the electronic map of the present invention include, but are not limited to, a cruise mode and a navigation mode. Among them, the cruise mode can be understood as that the user does not set a destination on the electronic map. The electronic map tracks the user's real-time location, and displays the user's real-time location and the map near the real-time location. Called non-navigation mode. The navigation mode can be understood as that the user sets a departure point and a destination on an electronic map, the electronic map displays route information from the departure point to the destination, and tracks the user's real-time location. The scale of the electronic map can be understood as the ratio of the length of the unit line segment to the actual distance on the electronic map. The larger the scale, the larger the field of view on the electronic map, and the fewer display elements (such as building names, street names, etc.) on the electronic map. For example, when the scale of the electronic map is larger, the actual area range that can be displayed per unit area on the electronic map is larger, and the fewer elements such as building names displayed on the electronic map are. On the contrary, the smaller the scale, the smaller the field of view on the electronic map, the more display elements on the electronic map. For example, the smaller the scale of the electronic map, the smaller the actual area range that can be displayed per unit area on the electronic map. Correspondingly, more and more elements such as building names, street names, etc. displayed on a unit area are more detailed. For example, when the scale is equal to 200, the meaning it can represent is 1 cm on the electronic map, which represents 200 meters of the actual distance. Of course, this is only an example, and it is not a unique limitation.

The in-vehicle device described in the present invention can be implemented by hardware, or The corresponding software is implemented by hardware. In practical applications, the vehicle-mounted device can be implemented as a vehicle in a vehicle, or as a mobile terminal device such as a mobile phone or tablet connected to the vehicle.

The detailed embodiment is used below to describe the electronic map processing process of the present invention in detail. The following specific embodiments may be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

FIG. 1 is a schematic flowchart of an electronic map processing method according to an embodiment of the present invention. As shown in Figure 1, the method includes:

Step 101: Obtain a moving speed of a vehicle.

The moving speed of the vehicle in this embodiment is the basis for converting the scale of the electronic map, and it may be any one of the vehicle's transient moving speed, average transient moving speed, and average moving speed. Among them, the transient moving speed can be understood as the speed of the vehicle obtained by sampling the vehicle once. The average transient moving speed can be understood as two or more speed samples of the vehicle in a unit time, and the average speed of the two or more speeds obtained by the sampling (that is, the transient moving speed) is calculated. The speed of the vehicle obtained. For the setting of the unit time, a person skilled in the art can specifically set according to specific needs, and this embodiment does not specifically limit it. For example, the unit time can be set to 1 second. By using the vehicle twice or more speeds within one second, and averaging two or more speeds acquired to obtain the vehicle, Average transient moving speed. The average moving speed can be understood as an improvement on at least two average transient moving speeds of the vehicle within a preset time period. Perform the averaging operation to get the speed. For example, if the preset duration is 2 minutes, at least two average transient movement speeds of the vehicle within 2 minutes before the current time are obtained, and the averaged average obtained transient movement speed is averaged to obtain the average movement of the vehicle. speed. It should be noted that the preset time length here may be any time length greater than the above unit time.

When the vehicle-mounted device is implemented as a mobile terminal, the above-mentioned moving speed can be obtained indirectly by the mobile terminal following the moving speed of the vehicle. For example, the in-vehicle device is a mobile phone. At this time, the electronic map is displayed on the screen of the mobile phone. When the scale of the electronic map is adjusted, the mobile phone uses the sensor installed on the mobile phone to obtain the speed of moving with the vehicle.

When the in-vehicle device is implemented as a vehicle, the electronic map is displayed through a display screen on the vehicle. At this time, the moving speed of the vehicle can be obtained by collecting the bus on the vehicle.

Step 102: Determine a first scale corresponding to the moving speed.

The scale of the electronic map can be determined according to the moving speed of the vehicle. According to the actual driving situation, the relationship between the speed of the vehicle and the scale of the electronic map can be set as a proportional relationship, that is, the larger the speed of the vehicle, the larger the scale of the corresponding electronic map, the smaller the speed of the corresponding movement. The smaller the scale of the electronic map. In actual situations, the corresponding relationship between the moving speed and the scale can be obtained according to the mapping relationship between the moving speed and the scale, or the mapping relationship between the moving speed range and the scale. The mapping relationship may be specifically a list of correspondences between the movement speed and the scale value, or may be specifically a correspondence relationship column between the movement speed range and the scale value. table. When the electronic map is scaled, the scale value corresponding to the moving speed can be obtained by looking up the table according to the current moving speed of the vehicle. Optionally, the mapping relationship may also be specifically a mapping algorithm between a moving speed and a scale, or a corresponding relationship between a moving speed range and a scaling map algorithm.

In simple terms, the moving speed of a vehicle can be used as an input variable, the scale of an electronic map can be used as an output variable, and a corresponding scaling mapping algorithm can be used to calculate and obtain a scale suitable for the moving speed of the vehicle. For example, the moving speed of a vehicle can be used as an input variable, and the scale of the electronic map can be obtained by a unified scale mapping algorithm. You can also divide the moving speed of the vehicle into several speed ranges, and set a corresponding scale mapping algorithm for each speed range. When converting the scale of the electronic map, you must first determine the moving speed of the vehicle. Speed range. After determining the speed range to which the vehicle's moving speed belongs, the scale mapping algorithm corresponding to the speed range is used to calculate the scale of the electronic map. You can also set a list of the correspondence between the movement speed and the scale in advance. When the scale conversion is performed, the scale corresponding to the movement speed can be obtained by looking up the table. Of course, the above is only an example, and it is not a limitation. Scale mapping algorithm

For example, optionally, the moving speed can be divided into three threshold ranges, which are: [0, akm / h), [akm / h, bkm / h), [b km / h, infinite). The scale mapping algorithm corresponding to the threshold range [0, akm / h) is: scale = h * v + f (1)

The scale mapping algorithm corresponding to the threshold range [akm / h, bkm / h) is: scale = k * (v / 10-3) ³ -1 * (v / 10-3) ² + j * (v / 10- 3) + s (2)

[bkm / h, infinite] The corresponding scale mapping algorithm is: scale = g (3)

Among them, scale is the value of the scale. For example, when scale = 300, it means that the ratio of the unit length to the actual distance on the electronic map is 1: 300. Here, the length unit of the unit length and the actual distance length on the electronic map. The unit can be arbitrarily set. For example, 1: 300 can be expressed as 1 cm on the electronic map, which represents 300 meters of the actual distance. v is the moving speed of the vehicle, a, b, h, f, k, l, j, s, and g are constants, where a, b, and g can be set by the person skilled in the art according to needs, h, f , k, l, j, s can be obtained by sampling and fitting. This is similar to the prior art, and will not be repeated here.

That is, when the threshold range of the vehicle's moving speed is [0, akm / h), the scale of the electronic map is calculated using formula (1); when the threshold range of the moving speed of the vehicle is [akm / h, bkm / h), the formula (2) is used to calculate the scale of the electronic map; when the threshold range of the speed of the traffic is [b km / h, infinite), the formula (3) is used to calculate the scale of the electronic map. Of course, this is just an example, and it is not the only limitation.

Step 103: Adjust the scale of the electronic map to the first scale.

For example, assuming that the scale obtained after the calculation in the above steps is 200, the scale of the electronic map is adjusted to 200.

Further, in order to better understand the method and effect of this embodiment, the method of this embodiment is described below with reference to a specific schematic diagram.

FIG. 2a is a schematic diagram of a relationship between speed and scale provided by the present invention. In the figure, the horizontal axis is the moving speed value of the vehicle, the unit is km / hour, and the vertical axis is the scale value of the electronic map, the unit is meter. In practical applications, a threshold value can be set for the moving speed of the vehicle. When the moving speed exceeds this threshold value, the scale value is adjusted to a fixed scale value, that is, the part of the curve in FIG. 2a where the speed is greater than 110km / h. In this case, the vehicle is moving at a high speed, and the displacement of the vehicle changes rapidly in a unit time. At this time, displaying the electronic map at a larger scale can reduce the displacement of the vehicle on the electronic map, which is convenient. The driver observes, the visual experience is better. When the moving speed of the vehicle is less than this threshold, the larger the speed of the vehicle, the corresponding electronic map is displayed on a larger scale, and the smaller the speed of the vehicle, the corresponding electronic map is displayed on a smaller scale. This can be seen here in the part of the curve in Fig. 2a where the velocity is less than 110 km / h. In addition, in order to further enhance the scale adjustment effect and make the scale adjustment and driving behavior more compatible, the moving speed of the vehicle can be divided into several speed ranges, combined with the actual driving needs, in order of speed range from small to large, in order Increasing the adjustment scale of the scale can be seen here in Fig. 2a where the moving speed is in the range of (10km / h, 80km / h), and the moving part is in the curve range of (80km, 110km / h).

Further, FIG. 2b is a schematic diagram of a user interface before the scale change according to the present invention, and FIG. 2c is a schematic diagram of the user interface after the scale is changed based on FIG. 2b. The moving speed of the vehicle in the state of FIG. 2b is greater than the moving speed of the state in FIG. 2c. As shown in Figure 2b and Figure 2c, in actual applications, the greater the moving speed of the vehicle, the larger the scale of the electronic map, and the user interface is the greater the moving speed of the vehicle, the unit on the electronic map The larger the actual area range of the area display, that is, the larger the field of view on the electronic map, the fewer elements the corresponding electronic map displays, and the lower the recognition of the map. The smaller the moving speed of the vehicle, the smaller the actual area displayed by the unit area on the electronic map, the smaller the field of view of the electronic map, and the more elements displayed on the corresponding electronic map, the higher the recognition of the map. This is shown in FIG. 2b and FIG. 2c. The visual field range of FIG. 2c is smaller than the visual field range of FIG. 2b, and the recognition degree of the road of FIG. 2c is higher than that of FIG. 2b. It should be noted that the electronic map processing method provided in this embodiment can be applied to the cruise mode and navigation mode of the electronic map at the same time, or can be applied only to the cruise mode of the electronic map. Especially in the cruise mode, the effect of the electronic map processing method provided by this embodiment is particularly prominent.

In this embodiment, the scale of the electronic map is determined according to the moving speed of the vehicle by obtaining the moving speed of the vehicle, so that the electronic map is displayed at a scale suitable for the current moving speed of the vehicle, thereby ensuring the electronic map. In cruise mode, the scale can also be adjusted automatically according to the moving speed of the vehicle; and the combination of the processing of the electronic map and the driving behavior of the user can always ensure the electronic map's The display scale is matched with the driving behavior of the user, which is beneficial to improving the safety of driving and the experience of using electronic maps.

On the basis of the above embodiment, the vehicle-mounted device may also identify the working mode of the electronic map before acquiring the moving speed of the vehicle, and after the working mode of the electronic map is identified, the corresponding processing method is used for the electronic map. Scale. The specific method is as follows: FIG. 3 is a schematic flowchart of an electronic map processing method according to an embodiment of the present invention. As shown in FIG. 3, the method includes:

Step 201: Determine whether the working mode of the electronic map is a cruise mode, and if not, perform step 202.

Optionally, in practical applications, the working mode of the electronic map may be determined according to the setting data of the electronic map. When the setting data includes the starting position information and the destination position information, the working mode of the electronic map is the navigation mode. When the starting position information and the destination position information are not included in the setting data, the working mode of the electronic map is the navigation mode. Of course, the above-mentioned method for obtaining the working mode is only an implementation method in this embodiment, and is not a unique limitation on it. As long as the method capable of identifying the working mode of the electronic map is within the protection scope of the present invention.

Step 202: Determine a second scale corresponding to the distance according to the distance between the current location of the vehicle and the zoom-in point in front, and adjust the scale of the electronic map to the second scale.

In this embodiment, when the working mode of the electronic map is a navigation state, optionally, the scale of the electronic map is determined by the distance between the current location of the vehicle and the magnification point in front. The magnification point here is at Pre-set position points on the electronic map. In particular, in this embodiment, the zoom-in points may be specifically embodied as positions of intersections on a navigation route. When the vehicle enters a certain area in the area around the magnification point, the adjustment operation of the scale of the electronic map can be started. The size of the area can be set according to specific needs. This embodiment does not make it specific. limited. For example, the range of the area can be set to 200 meters, that is, when the vehicle enters a range 200 meters away from the enlarged point in front, the scale of the electronic map is adjusted.

In practical applications, the relationship between the distance between the vehicle and the zoom point in front and the scale of the electronic map can be set as a proportional relationship, that is, the larger the distance between the vehicle and the zoom point in front, the larger the scale of the corresponding electronic map. The larger the distance, the smaller the scale of the corresponding electronic map. In actual situations, the correspondence between the distance between the vehicle and the zoom point in front and the scale can be obtained according to the mapping relationship between the distance and the scale, or the mapping relationship between the distance range and the scale. The mapping relationship may be specifically a list of correspondence relationships between a distance between a vehicle and a zoom point in front and a preset scale value, or may be specifically a correspondence relationship between a distance range and a preset scale value. List. When adjusting the scale of the electronic map, the scale value corresponding to the distance can be obtained by looking up the table according to the distance between the vehicle and the zoom point in front. Optionally, the mapping relationship may also be specifically a mapping algorithm between a distance and a scale between a vehicle and a zoom-in point in front, or a corresponding relationship between a distance range and a scale mapping algorithm.

In simple terms, the distance between the vehicle and the zoom point in front As an input variable, the scale of the electronic map is used as an output variable, and a corresponding scale mapping algorithm is used to calculate and obtain a scale suitable for the distance. For example, the distance between the vehicle and the zoom point in front can be used as an input variable, and the scale of the electronic map can be obtained by a unified scale mapping algorithm. You can also divide the distance between the vehicle and the zoom point in front into several distance ranges, and set a corresponding scale mapping algorithm for each distance range. When converting the scale of the electronic map, you must first determine the vehicle The distance range to which the distance from the front magnification point belongs. After determining the distance range to which the distance between the vehicle and the front magnification point belongs, the scale of the electronic map is calculated according to the scale mapping algorithm corresponding to the distance range. You can also set a list of the correspondence between distances and scales in advance. When the scale conversion is performed, the scale corresponding to the distance can be obtained by looking up the table. Of course, the above is only an example, and it is not a limitation.

For example, optionally, the distance between the vehicle and the magnification point in front can be divided into two distance ranges, respectively: [0, m meters), [m meters, positive infinity). The scale conversion algorithm corresponding to the distance range [0, m meters) is: scale = i × x / p + q (4)

The scale conversion algorithm corresponding to the distance range (m meters, positive infinity) is: scale = n (5)

Among them, scale is a scale value. For example, when scale = 300, it means that the ratio of the unit length to the actual distance on the electronic map is 1: 300. Here, the length unit and actual distance of the unit length on the electronic map. The unit of length can be arbitrarily set. For example, 1: 300 here can be expressed as 1 cm on the electronic map, which represents 300 meters of the actual distance. x is the distance between the vehicle's current position and the front magnification point, m, i, p, q, n are constants, where m, n can be set by the person skilled in the art according to needs, i, p, q can be obtained by sampling and fitting methods, which is similar to the prior art and will not be repeated here.

That is, when the distance range between the vehicle and the magnification point in front is [0, m meters], formula (4) is used to calculate the scale of the electronic map; when the distance between the vehicle and the magnification point in front belongs to When the distance range is [m meters, positive infinity], formula (5) is used to calculate the scale of the electronic map. Of course, this is just an example, and it is not a unique limitation.

Further, in order to better understand the method and effect of this embodiment, the method of this embodiment is described below with reference to a specific schematic diagram.

FIG. 4a is a schematic diagram of the relationship between distance and scale provided by the present invention. The horizontal axis in the figure is the distance between the vehicle and the zoom point in front, in meters, and the vertical axis is the scale value of the electronic map, in meters. In practical applications, the distance between the vehicle and the zoom point in front is proportional to the scale of the electronic map, that is, the larger the distance between the vehicle and the zoom point in front, the larger the scale of the electronic map. This is shown in Figure 4a as the relationship between distance and scale is a curve that shows a linear upward trend. For example, when the front magnification point is an intersection, usually, when a vehicle passes through an intersection, the driver usually needs to check the road conditions to choose his own route. At this time, an electronic map is required to provide higher recognition. The degree is reflected on the electronic map, that is, the scale of the electronic map is small, the field of view is small, and the degree of route recognition is high. And gradually changing the scale of the map according to the distance between the vehicle and the zoom point in front can enhance the smoothness of the scale change, which is beneficial to improving the user experience.

Further, FIG. 4b is a schematic diagram of a user interface before the scale change according to the present invention, and FIG. 4c is a schematic diagram of the user interface after the scale is changed based on FIG. 4b. The distance between the vehicle and the forward magnification point in the state of FIG. 4b is greater than the distance between the vehicle and the forward magnification point in the state of FIG. 4c. As shown in Figure 4b and Figure 4c, in practical applications, the greater the distance between the vehicle and the zoom point in front, the larger the scale of the electronic map, and the reflection on the user interface is the unit area displayed on the electronic map. The larger the actual area, that is, the larger the field of view on the electronic map, the fewer elements the corresponding electronic map displays, and the lower the map's recognition. The smaller the distance between the vehicle and the zoom point in front, the smaller the actual area displayed on the electronic map per unit area, the smaller the field of view of the electronic map, and the more elements displayed on the corresponding electronic map, the more recognizable the map is. Higher. This is shown in FIG. 4b and FIG. 4c. The visual field range of FIG. 4c is smaller than the visual field range of FIG. 4b, and FIG. 4c has a higher recognition degree than the road of FIG. 4b. In this embodiment, when the electronic map is in a navigation state, the scale of the electronic map is determined according to the distance between the vehicle and the zoom point in front, so that the electronic map is in the navigation working mode, and can also be based on the distance between the vehicle and the zoom point in front. Distance to achieve accurate adjustment of the scale of the electronic map, making the adjustment of the scale more in line with the driving behavior of the user, which can significantly enhance the user experience and improve driving safety Fullness.

FIG. 5 is a schematic flowchart of an electronic map processing method according to an embodiment of the present invention. As shown in FIG. 5, based on the embodiment shown in FIG. 3, the method includes:

Step 301: Determine whether the user is performing an operation on the electronic map, and if yes, end the operation; otherwise, perform hidden processing on the touch control keys on the electronic map, and execute step 302.

In actual applications, for the user's judgment of the operation behavior of the electronic map, optionally, the user's operation behavior can be obtained by using a touch sensor connected to the touch screen. For example, when the touch sensor detects a touch signal, it is determined that the user is operating the electronic map. If the touch signal is not detected, it is determined that the user is not operating the electronic map. Of course, the foregoing judgment method is only an implementation method in this embodiment, and is not a unique limitation on it. As long as the method capable of judging a user's operation behavior is within the protection scope of the present invention.

Step 302: Determine whether the working mode of the electronic map is a cruise mode. If not, perform steps 303-305; if yes, perform step 306.

Step 303: Obtain the moving speed of the vehicle.

Step 304: Determine a first scale corresponding to the moving speed.

Step 305: Adjust the scale of the electronic map to the first scale.

Step 306: Determine a second scale corresponding to the distance according to the distance between the current position of the vehicle and the zoom-in point in front, and The scale of the electronic map is adjusted to the second scale.

Steps 302 and 306 are described in detail in the foregoing embodiment, which is not described in this embodiment.

This embodiment is based on the above embodiment. Before converting the scale of the electronic map, the user first judges the operation state of the electronic map. When it is determined that the user has not operated the electronic map, further The scale of the electronic map is adjusted according to the method of the above embodiment. Therefore, the conflict between self-adjustment of the electronic map and user operation is avoided, and the user experience is enhanced.

FIG. 6 is a schematic structural diagram of a vehicle-mounted device according to an embodiment of the present invention. As shown in FIG. 6, the vehicle-mounted device includes: an obtaining module 11 for obtaining a moving speed of a vehicle; a first determining module 12 for determining a first scale corresponding to the moving speed; and an adjusting module 13 for The scale of the electronic map is adjusted to the first scale.

Wherein, the moving speed of the vehicle is proportional to the scale of the electronic map. The first determining module 12 is specifically configured to determine a first scale corresponding to the moving speed according to a mapping relationship between speed and a scale, or determine a first speed range to which the moving speed belongs; according to the speed range A mapping relationship between the scale and the scale to determine a mapping relationship between the first speed range and the scale; A first scale corresponding to the moving speed is determined according to the mapping relationship.

Particularly, the vehicle-mounted device provided in this embodiment may be specifically a mobile terminal or a vehicle-mounted device in practical applications. When the in-vehicle device is a mobile terminal, correspondingly, the acquisition module 11 includes a first acquisition sub-module for acquiring a speed at which the mobile terminal moves with the vehicle. When the vehicle-mounted device is a vehicle-mounted device, correspondingly, the obtaining module 11 includes a second obtaining sub-module for obtaining a moving speed of the vehicle through a bus of the vehicle.

In particular, in this embodiment, the moving speed of the vehicle obtained by the obtaining module 11 may be any one of the following moving speeds: transient moving speed, average transient moving speed, and average moving speed.

At this time, the acquisition module 11 includes: a third acquisition sub-module for acquiring a transient moving speed of the vehicle; or a fourth acquisition sub-module for acquiring the vehicle in a first preset At least two transient moving speeds within a time period, and averaging the at least two transient moving speeds to obtain an average transient moving speed; or a fifth obtaining submodule for obtaining the At least two average transient movement speeds within a second preset time period, and averaging the at least two average transient movement speeds to obtain an average movement speed, wherein the average transient movement speed is the vehicle Equipment on the vehicle It is obtained by averaging at least two transient moving speeds in the first preset time period.

The vehicle-mounted device provided in this embodiment may be used to execute the method embodiment shown in FIG. 1 above, and its implementation principles and technical effects are similar. This embodiment is not described here again.

FIG. 7 is a schematic structural diagram of a vehicle-mounted device according to an embodiment of the present invention. As shown in FIG. 7, based on the structure shown in FIG. 6, the vehicle-mounted device may further include a third determination module 14 for determining whether the working mode of the electronic map is a cruise mode.

A fourth determining module 15 is configured to determine, when the third determining module 14 determines that the working mode of the electronic map is a navigation mode, according to a distance between a current position of the vehicle and a magnification point in front of the vehicle. The second scale corresponding to the distance; the adjustment module 13 is further configured to adjust the scale of the electronic map to the second scale.

The distance is proportional to the scale of the electronic map. The fourth determining module 15 is specifically configured to determine a second scale corresponding to a distance between the vehicle and a zoom point in front according to a mapping relationship between the distance and the scale, or determine a first scale to which the distance belongs. A distance range; determining a mapping relationship between the first distance range and a scale according to a mapping relationship between the distance range and a scale; determining a second ratio corresponding to the distance according to the mapping relationship ruler.

The vehicle-mounted device provided in this embodiment may be used to execute the method embodiment shown in FIG. 3 described above, and the implementation principles and technical effects thereof are similar. This embodiment is not described here again.

FIG. 8 is a schematic structural diagram of a vehicle-mounted device according to an embodiment of the present invention. As shown in FIG. 8, based on the structure shown in FIG. 7, the vehicle-mounted device may further include: a second determination module 16 for determining whether a user is operating an electronic map; and a processing module 17 for When the user does not operate the electronic map, the touch control buttons on the electronic map are hidden, and the acquisition module 11 is triggered to obtain the moving speed of the vehicle.

The vehicle-mounted device provided in this embodiment may be used to execute the method embodiment shown in FIG. 5 above, and its implementation principles and technical effects are similar. This embodiment is not described herein again.

FIG. 9 is a schematic structural diagram of a vehicle-mounted device according to an embodiment of the present invention. As shown in FIG. 9, the vehicle-mounted device includes: an input device 21, a processor 22, and a display element 23. The display element 23 is used to perform an electronic map. Display; wherein the processor 22 is coupled to the input device 21 and the display element 23 respectively; the input device 21 is used to obtain the moving speed of the vehicle; and the processor 22 is used to determine all The moving speed corresponds to the first A scale; the processor 22 is further configured to adjust the scale of the electronic map to the first scale.

The input device 21 is specifically configured to: obtain a transient moving speed of the vehicle; or obtain at least two transient moving speeds of the vehicle within a first preset time period, and determine the speed of the vehicle. Averaging the at least two transient moving speeds to obtain an average transient moving speed; or obtaining at least two average transient moving speeds of the vehicle within a second preset time period, and comparing the at least two The average transient moving speed is averaged to obtain an average moving speed, wherein the average transient moving speed is that the vehicle-mounted device averages at least two transient moving speeds of the vehicle within a first preset duration. owned.

When the vehicle-mounted device is a mobile terminal, correspondingly, the input device 21 is specifically configured to: obtain the speed at which the mobile terminal moves with the vehicle; or when the vehicle-mounted device is a vehicle-mounted device, the corresponding The input device 21 is specifically configured to obtain a moving speed of the vehicle by using a bus of the vehicle.

The processor 22, The processor 22 is further configured to determine whether a user is operating an electronic map; if not, perform hidden processing on the touch control keys on the electronic map, and trigger the input device to acquire the traffic The speed at which the tool moves.

The processor 22 is further configured to determine whether the working mode of the electronic map is a cruise mode; if yes, trigger the input device to obtain the moving speed of the vehicle.

In particular, in this embodiment, there is a proportional relationship between the moving speed of the vehicle and the scale of the electronic map. Further, the processor 22 may be specifically configured to: determine a first scale corresponding to the moving speed according to a mapping relationship between speed and a scale, or determine a first speed range to which the moving speed belongs; according to the speed The mapping relationship between the range and the scale determines the mapping relationship between the first speed range and the scale; and according to the mapping relationship, determines the first scale corresponding to the moving speed.

The vehicle-mounted device provided in this embodiment may be used to execute the foregoing method embodiments, and the implementation principles and technical effects thereof are similar. This embodiment is not described herein again.

FIG. 10 is a schematic structural diagram of a user interface system according to an embodiment of the present invention. As shown in FIG. 10, the user interface system may include: A processor element 31 and a display element 32; the display element 32 is used to display an electronic map; the processor element 31 is used to determine a first scale corresponding to a moving speed of a vehicle; the processor element 31, and The scale of the electronic map is adjusted to the first scale, so that the display element displays the electronic map at the first scale.

FIG. 11 is a schematic structural diagram of an in-vehicle device navigation system according to an embodiment of the present invention. As shown in FIG. 11, the system may include an on-board input device 41, an on-board processor 42, and an on-board display element 43. The onboard display element 43 is used to display an electronic map; wherein the onboard processor 42 is coupled to the onboard input device 41 and the onboard display element 43 respectively; the onboard input device 41 is used to obtain The moving speed of the vehicle; the onboard processor 42 is configured to determine a first scale corresponding to the moving speed; the onboard processor 42 is further configured to adjust the scale of the electronic map to the first scale A scale, so that the on-board display element displays the electronic map at the first scale.

In particular, when the system is installed on a mobile terminal, correspondingly, the onboard input 41 device is specifically configured to: obtain the speed at which the mobile terminal moves with the vehicle; or, When the system is installed on vehicle equipment, correspondingly, the onboard input device 41 is specifically configured to: obtain the moving speed of the vehicle through a bus of the vehicle.

The on-board input device 41 is further specifically configured to: obtain a transient movement speed of the vehicle; or obtain at least two transient movement speeds of the vehicle within a first preset duration, and Averaging the at least two transient moving speeds to obtain an average transient moving speed; or obtaining at least two average transient moving speeds of the vehicle within a second preset time period, and comparing the at least two Average the average transient moving speeds to obtain an average moving speed, where the average transient moving speed is the vehicle-mounted device performing at least two transient moving speeds of the vehicle within a first preset duration Get on average.

The onboard processor 42 is further configured to: determine whether a user is operating an electronic map; if not, perform hidden processing on the touch control keys on the electronic map and trigger the onboard input device Obtain the moving speed of the vehicle.

The onboard processor 42 is further configured to determine whether the working mode of the electronic map is a cruise mode; if so, trigger the onboard input device to obtain the vehicle's Moving speed.

Optionally, the onboard processor 42 may be specifically configured to: determine a threshold range to which the moving speed belongs; determine a scale conversion algorithm corresponding to the threshold range; and use the scale conversion algorithm to determine an electronic map First scale.

In particular, in this embodiment, there is a proportional relationship between the moving speed of the vehicle and the scale of the electronic map.

The on-board processor 42 may be specifically configured to: determine a first scale corresponding to the moving speed according to a mapping relationship between speed and a scale, or determine a first speed range to which the moving speed belongs; and according to the speed range The mapping relationship between the scale and the scale determines the mapping relationship between the first speed range and the scale; and according to the mapping relationship, determines the first scale corresponding to the moving speed.

The on-board input device 41 may include at least one of a software programmable interface, a transceiver, a device-oriented device interface, and a user-oriented user interface.

The user-oriented user interface includes one or more of the following: a voice input device and a touch sensing device.

FIG. 12 is a schematic structural diagram of a vehicle-mounted Internet operating system according to an embodiment of the present invention. As shown in FIG. 12, the system includes: an input control unit 51 that controls an on-board input device to obtain a vehicle The processing control unit 52 determines a first scale corresponding to the moving speed; the display control unit 53 determines the first scale corresponding to the moving speed after the processing control unit 52 determines The scale is adjusted to the first scale.

The processing control unit 52 is further configured to: determine whether a user is operating an electronic map; if not, perform hidden processing on the touch control buttons on the electronic map, and control the onboard input device to obtain The moving speed of the vehicle.

In particular, the processing control unit 52 may be further configured to: determine whether the working mode of the electronic map is a cruise mode; if so, control the onboard input device to obtain the moving speed of the vehicle.

Optionally, in this embodiment, the moving speed of the vehicle is proportional to the scale of the electronic map.

In practical applications, the processing control unit 52 may be specifically configured to determine a first scale corresponding to the moving speed according to a mapping relationship between speed and a scale, or determine a first speed range to which the moving speed belongs; Determine the mapping relationship between the first speed range and the scale according to the mapping relationship between the speed range and the scale; determine the first ratio corresponding to the moving speed according to the mapping relationship Case ruler.

The vehicle-mounted device provided in this embodiment may be used to execute the foregoing method embodiments, and the implementation principles and technical effects thereof are similar. This embodiment is not described herein again.

It should be noted that the onboard of the "onboard input device" and "onboard processor" in the embodiments of the present invention may be the "onboard input device" and "onboard processor" carried on the vehicle, or It is the "onboard input device" and "onboard processor" carried on the aircraft, and it can also be the "onboard input device" and "onboard processor" carried on the mobile terminal. The "onboard processor" may also be a device carried on other types of vehicles, and the meaning of "onboard" is not limited in the embodiments of the present invention. Taking the vehicle-mounted device as an example, the on-board input device may be a vehicle-mounted input device, and the on-board processor may be a vehicle-mounted processor.

Depending on the type of vehicle-mounted equipment installed, the above-mentioned on-board input device may include a variety of input devices, for example, it may include a user-oriented on-board user interface, a device-oriented on-board device interface, and software on-board programmable Design at least one of interface and transceiver. Optionally, the device-oriented airborne device interface may be a wired interface for data transmission between the device and the device (such as a connection interface with a driving recorder on the center console of the vehicle), or may be used for A hardware insertion interface (such as a USB interface, a serial port, etc.) for data transmission between the device; optionally, the user-oriented vehicle-mounted user interface may be, for example, a voice input device (for example, Microphones located on the steering wheel or operating rudder, central sound collection equipment, etc.), and user access Touch-sensing devices that receive user touch input (such as a touch screen with a touch-sensing function, a touchpad, etc.); optionally, the on-board programmable interface of the software can be, for example, a vehicle control system. An entry for users to edit or modify, such as the input pin interface or input interface of the large and small chips in the vehicle; optionally, the above-mentioned transceiver may be a radio frequency transceiver chip with a communication function in the vehicle, and a base frequency. Processing chips and transmitting and receiving antennas. According to the method in the embodiments corresponding to FIG. 1 to FIG. 3 described above, the onboard input device is used to obtain a moving speed of a vehicle. The airborne input device may be a device transmission interface that communicates with various business sources inside the vehicle or mobile phone, or a transceiver with a communication function. The onboard input device is also used to receive various instructions triggered by the user. The onboard input device may also be a voice input device that receives voice input, and a touch sensing device (such as a touch screen with a touch sensing function, a touch pad, etc.) for receiving user touch input.

Depending on the type of vehicle-mounted equipment installed, the above-mentioned on-board processors can use various application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), and programmable logic devices. (PLD), field programmable gate array (FPGA), central processing unit (CPU), controller, microcontroller, microprocessor or other electronic components, and is used to perform the above method. The on-board processor is coupled to the on-board input device and the on-board display element through an in-vehicle circuit or a wireless connection. The above-mentioned on-board processor may execute the method in the embodiment corresponding to FIG. 1 to FIG. 3. For example, the on-board processor may determine a first scale of the electronic map according to the moving speed, and control the on-board processor. The display element uses the first scale to display the electronic map.

The present invention also provides a processor-readable storage medium. The storage medium stores program instructions, and the program instructions are used to cause the processor to execute the methods described in FIG. 1 to FIG. 3 in the foregoing embodiment.

The above readable storage medium may be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable and programmable read-only memory (EEPROM) You can erase the programmable read-only memory (EPROM), the programmable read-only memory (PROM), the read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disc.

The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms "a", "the", and "the" used in the embodiments of the present invention and the scope of the attached application patent are also intended to include the plural forms unless the context clearly indicates other meanings.

It should be understood that although the terms first, second, third, etc. may be used to describe XXX in the embodiments of the present invention, these XXX should not be limited to these terms. These terms are only used to distinguish XXX from each other. For example, without departing from the scope of the embodiments of the present invention, the first XXX may also be referred to as the second XXX, and similarly, the second XXX may also be referred to as the first XXX.

Depending on the context, the words "if," "if," as used herein, can be interpreted as "at" or "when" or "responding to" OK "or" Respond to detection. "Similarly, depending on the context, the phrases" if determined "or" if detected (condition or event stated) "can be interpreted as" when determined "or" responded to determination " Or "when testing (statement or event stated)" or "responding to testing (statement or event stated)".

It should also be noted that the terms "including", "including" or any other variants thereof are intended to cover non-exclusive inclusions, so that a commodity or system that includes a series of elements includes not only those elements, but also those that are not explicitly listed Other elements, or elements that are inherent to this commodity or system. Without more restrictions, the elements defined by the sentence "including a ..." do not exclude the existence of other identical elements in the product or system including the elements.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, but not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or to replace some or all of the technical features equivalently; and these modifications or replacements do not depart from the essence of the corresponding technical solutions of the technical solutions of the embodiments of the present invention. range.

Claims (38)

An electronic map processing method includes: acquiring a moving speed of a vehicle; determining a first scale corresponding to the moving speed; and adjusting the scale of an electronic map to the first scale. The method according to item 1 of the patent application scope, wherein before the obtaining the moving speed of the vehicle, the method further comprises: determining whether the user is operating the electronic map; if not, the touch on the electronic map is performed. And controlling the control keys to perform hiding processing, and performing the step of obtaining the moving speed of the vehicle. The method according to item 1 of the scope of patent application, wherein before the obtaining the moving speed of the vehicle, the method further comprises: determining whether the working mode of the electronic map is a cruise mode; if yes, executing the obtaining the moving speed of the vehicle A step of. The method according to any one of claims 1 to 3, wherein the moving speed of the vehicle is proportional to the scale of the electronic map. The method according to item 4 of the scope of patent application, wherein the determining a first scale corresponding to the moving speed comprises: determining a first scale corresponding to the moving speed according to a mapping relationship between the speed and the scale. The method according to item 4 of the scope of patent application, wherein determining the first scale corresponding to the moving speed comprises: determining a first speed range to which the moving speed belongs; The mapping relationship between the first speed range and the scale is determined according to the mapping relationship between the speed range and the scale; and the first scale corresponding to the moving speed is determined according to the mapping relationship. The method according to item 3 of the scope of patent application, further comprising: if it is determined that the working mode of the electronic map is a navigation mode, according to the distance between the current position of the vehicle and the magnification point in front, Determining a second scale corresponding to the distance; and adjusting the scale of the electronic map to the second scale. The method according to item 7 of the scope of patent application, wherein the distance is proportional to the scale of the electronic map. The method according to item 7 or 8 of the scope of patent application, wherein the determining a second scale corresponding to the distance according to the distance between the current position of the vehicle and the magnification point in front includes: according to the distance The mapping relationship between the scale and the scale determines a second scale corresponding to the distance between the vehicle and the forward magnification point. The method according to item 7 or 8 of the scope of the patent application, wherein determining the second scale corresponding to the distance according to the distance between the current position of the vehicle and the magnification point in front includes determining the The first distance range to which the distance belongs; determining the mapping relationship between the first distance range and the scale according to the mapping relationship between the distance range and the scale; determining the second ratio corresponding to the distance according to the mapping relationship ruler. The method according to any one of claims 1 to 3, wherein the scale of the electronic map is inversely proportional to the number of display elements on the electronic map. An in-vehicle device includes: an acquisition module for acquiring a moving speed of a vehicle; a first determination module for determining a first scale corresponding to the moving speed; and an adjustment module for adjusting an electronic map's scale to a desired value. The first scale is described. The device according to item 12 of the scope of patent application, wherein the device further comprises: a second determination module for determining whether a user is operating an electronic map; and a processing module for when the user When the electronic map is not operated, the touch control buttons on the electronic map are hidden, and the acquisition module is triggered to obtain the moving speed of the vehicle. The device according to item 12 of the scope of patent application, wherein the device further includes: a third determining module for determining whether the working mode of the electronic map is a cruise mode; and the acquiring module, which is specifically used for When the working mode of the electronic map is a cruise mode, the moving speed of the vehicle is obtained. Designed according to any one of items 12-14 of the scope of patent application Equipment, wherein the moving speed of the vehicle is proportional to the scale of the electronic map. The device according to item 15 of the scope of patent application, wherein the first determining module is specifically configured to determine a first scale corresponding to the moving speed according to a mapping relationship between the speed and the scale. The device according to item 15 of the scope of patent application, wherein the first determining module is specifically configured to: determine a first speed range to which the moving speed belongs; determine according to a mapping relationship between the speed range and a scale A mapping relationship between the first speed range and a scale; and a first scale corresponding to the moving speed is determined according to the mapping relationship. An in-vehicle device includes: an input device, a processor, and a display element, where the display element is used to display an electronic map; wherein the processor is coupled to the input device and the display element, respectively; the input A device for acquiring a moving speed of a vehicle; the processor for determining a first scale corresponding to the moving speed; and the processor for adjusting the scale of the electronic map to the first scale scale. The device according to item 18 of the scope of patent application, wherein: The processor is further configured to determine whether a user is operating an electronic map; if not, perform hidden processing on the touch control buttons on the electronic map and trigger the input device to acquire the vehicle Speed of movement. The device according to item 18 of the scope of patent application, wherein the processor is further configured to determine whether the working mode of the electronic map is a cruise mode; if so, trigger the input device to obtain the moving speed of the vehicle . The device according to any one of claims 18-20 of the scope of the patent application, wherein the moving speed of the vehicle is proportional to the scale of the electronic map. The device according to item 21 of the scope of patent application, wherein the processor is specifically configured to determine a first scale corresponding to the moving speed according to a mapping relationship between the speed and the scale. The device according to item 21 of the scope of patent application, wherein the processor is specifically configured to: determine a first speed range to which the moving speed belongs; and determine the first speed range according to a mapping relationship between the speed range and a scale. A mapping relationship between a speed range and a scale; according to the mapping relationship, a first scale corresponding to the moving speed is determined. A user interface system includes: a processor element and a display element; the display element for displaying an electronic map; the processor element for determining a first scale corresponding to a moving speed of a vehicle; and the processor A component, further configured to adjust the scale of the electronic map to the first scale, so that the display element displays the electronic map at the first scale. An in-vehicle device navigation system includes an on-board input device, an on-board processor, and an on-board display element. The on-board display element is used to display an electronic map. The on-board processor and the on-board input respectively. The device is coupled to the on-board display element; the on-board input device is used to obtain the moving speed of the vehicle; the on-board processor is used to determine a first scale corresponding to the moving speed; the machine The onboard processor is further configured to adjust the scale of the electronic map to the first scale, so that the on-board display element displays the electronic map at the first scale. The system according to item 25 of the scope of patent application, wherein the onboard processor is further configured to: determine whether a user is operating an electronic map; if not, control the touch on the electronic map Press the key to hide the process, and trigger the onboard input device to obtain the movement of the vehicle speed. The system according to item 25 of the scope of patent application, wherein the onboard processor is further configured to: determine whether the working mode of the electronic map is a cruise mode; if so, trigger the onboard input device to obtain the traffic The speed at which the tool moves. The system according to any one of claims 25-27, wherein the moving speed of the vehicle is proportional to the scale of the electronic map. The system according to item 28 of the scope of patent application, wherein the onboard processor is specifically configured to determine a first scale corresponding to the moving speed according to a mapping relationship between the speed and the scale. The system according to item 28 of the scope of patent application, wherein the on-board processor is specifically configured to: determine a first speed range to which the moving speed belongs; and determine a position based on a mapping relationship between the speed range and a scale. The mapping relationship between the first speed range and the scale is determined according to the mapping relationship, and the first scale corresponding to the moving speed is determined. The system according to item 25 of the scope of patent application, wherein the onboard input device includes at least one of a software programmable interface, a transceiver, a device-oriented device interface, and a user-oriented user interface. The system according to item 31 of the scope of patent application, wherein the user-oriented user interface includes one or more of the following: a voice input device; a touch sensing device. An in-vehicle Internet operation system includes: an input control unit that controls an on-board input device to obtain a moving speed of a vehicle; a processing control unit that determines a first scale corresponding to the moving speed; and a display control unit that controls during the processing After the unit determines a first scale corresponding to the moving speed, the unit adjusts the scale of the electronic map to the first scale. The system according to item 33 of the patent application scope, wherein the processing control unit is further configured to: determine whether a user is operating an electronic map; if not, control the touch buttons on the electronic map Perform hidden processing and control the onboard input device to obtain the moving speed of the vehicle. The system according to item 33 of the scope of patent application, wherein the processing control unit is further configured to: determine whether the working mode of the electronic map is a cruise mode; if so, control the onboard input device to obtain the movement of the vehicle speed. Department according to any one of claims 33-35 System, wherein the moving speed of the vehicle is proportional to the scale of the electronic map. According to the system of claim 36, wherein the processing control unit is specifically configured to determine a first scale corresponding to the moving speed according to a mapping relationship between the speed and the scale. The system according to item 36 of the scope of patent application, wherein the processing control unit is specifically configured to: determine a first speed range to which the moving speed belongs; and determine the according to a mapping relationship between the speed range and a scale A mapping relationship between the first speed range and a scale; and according to the mapping relationship, a first scale corresponding to the moving speed is determined.