Head-up display device, display control method and device, and medium

Abstract

A display control method, comprising: acquiring a first distance between a present vehicle and an intersection for turning (S601); while the present vehicle travels from a position at a predetermined reference distance from said intersection to said intersection, determining a display size of turning indication information on the basis of the first distance (S602), wherein the turning indication information is used for indicating a turning direction of said intersection, and the display size of the turning indication information is in a negative correlation with the first distance; and displaying the turning indication information over said intersection on the basis of the display size of the turning indication information (S603). The display control method reduces the mental effort of drivers, and improves safety in complex driving environments. Also provided are a display control method and device, and a medium.

Description

Head-up display device, display control method, device and medium

[0001] Cross Reference to Related Applications

[0002] This application claims priority to the Chinese patent application No. 2024106340636, filed on May 21, 2024, and entitled "Head-up display device, display control method, device and medium", the content of which is incorporated herein by reference. TECHNICAL FIELD

[0003] The present disclosure relates to the technical field of head-up display control, and more particularly to a head-up display device, a display control method, a device and a medium. BACKGROUND

[0004] A head-up display (HUD) device projects light rays of a display image output by an image source onto an imaging window (e.g., an imaging panel, a windshield, etc.) through an optical design such as a reflective type, thereby displaying vehicle state information (e.g., vehicle speed, fuel level, etc.) and navigation, hazard warning, etc. indication information at a proper position in front of the driver. Through this design, the driver can obtain relevant information such as vehicle speed, fuel level, etc. without deviating the line of sight from the front road surface, thereby improving the safety factor and driving experience of driving.

[0005] During vehicle driving, the navigation-related indication information can be displayed as an arrow, a flight line, etc. that is adapted to the direction of the navigation path. When approaching an intersection that needs to be turned in the navigation path, the indication information will change accordingly in the direction in which the vehicle needs to be turned, so as to prompt the driver to pay attention to the need to turn in front of the driving direction.

[0006] TECHNICAL CONTENT

[0007] The present disclosure provides a head-up display device, a display control method, a device and a medium, which improves the driver's perception of the front turning intersection and the guiding effect of the HUD device for navigation, thereby improving the user experience.

[0008] The technical solution of the present disclosure is implemented as follows:

[0009] In a first aspect, the present disclosure provides a display control method, which comprises:

[0010] obtaining a first distance between the vehicle and a to-be-turned intersection; wherein the to-be-turned intersection is an intersection that needs to be turned and is located in front of the vehicle along a driving route of the vehicle and closest to the vehicle;

[0011] display the turning instruction information at the to-be-turned intersection according to the display size of the turning instruction information.

[0012] display the turning instruction information at the to-be-turned intersection according to the display size of the turning instruction information.

[0013] In a second aspect, the present disclosure provides a display control device, comprising: an acquisition unit, a determination unit and a control unit; wherein,

[0014] The acquisition unit is configured to acquire a first distance between a host vehicle and a to-be-turned intersection; wherein the to-be-turned intersection is an intersection that is located in front of the host vehicle along a driving route of the host vehicle and closest to the host vehicle;

[0015] The determination unit is configured to determine a display size of turning instruction information according to the first distance during a period when the host vehicle drives from a predetermined reference distance from the to-be-turned intersection to the to-be-turned intersection; wherein the turning instruction information is used to indicate a turning direction at the to-be-turned intersection, and the display size of the turning instruction information is negatively correlated with the first distance.

[0016] The control unit is configured to display the turning instruction information at the to-be-turned intersection according to the display size of the turning instruction information.

[0017] In a third aspect, the present disclosure provides a display control device, comprising: a processor and a memory; the processor is used to execute instructions stored in the memory to realize the display control method according to the first aspect.

[0018] In a fourth aspect, the present disclosure provides a computer readable storage medium, which stores at least one instruction used to be executed by a processor to realize the display control method according to the first aspect.

[0019] In a fifth aspect, the present disclosure provides a head-up display device, comprising: a display control unit and a display unit; wherein,

[0020] The display control unit is configured to acquire a first distance between a host vehicle and a to-be-turned intersection; wherein the to-be-turned intersection is an intersection that is located in front of the host vehicle along a driving route of the host vehicle and closest to the host vehicle;

[0021] display a size of the turning instruction information according to the first distance during the host vehicle travels from a predetermined reference distance from the intersection to be turned to the intersection to be turned, wherein the turning instruction information is used to indicate a turning direction at the intersection to be turned, and the size of the turning instruction information is negatively related to the first distance;

[0022] display the turning instruction information according to the size of the turning instruction information at the intersection to be turned;

[0023] The display unit is configured to project and display the turning instruction information to a windshield of the host vehicle based on the control of the display control unit.

[0024] In a sixth aspect, the present disclosure provides a vehicle comprising the head-up display device of the fifth aspect.

[0025] The present disclosure provides a head-up display device, a display control method, a device and a medium; the size of the turning instruction information is dynamically increased as the distance between the host vehicle and the intersection to be turned shortens, so that the driver can intuitively judge the distance between the host vehicle and the intersection to be turned by perceiving the change of the size of the turning instruction information, without receiving other data, thereby reducing the thinking burden of the driver and improving the safety in complex driving environment.

[0026] BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following will briefly introduce the drawings needed to be used in the description of the embodiments. The drawings in the following description are only exemplary embodiments of the present disclosure.

[0028] FIG. 1 is a schematic diagram of a vehicle-mounted system according to the present disclosure.

[0029] FIG. 2 is an exemplary top view of a vehicle according to the present disclosure.

[0030] FIG. 3 is an exemplary perspective view from a driver's seat of a vehicle according to the present disclosure.

[0031] FIG. 4 is a schematic diagram of an architecture of a head-up display device according to the present disclosure.

[0032] FIG. 5 is a schematic diagram of a turning instruction information according to the present disclosure.

[0033] FIG. 6 is a flowchart of a display control method according to the present disclosure.

[0034] FIG. 7 is a schematic diagram of a driving route according to the present disclosure.

[0035] FIG. 8 is another schematic diagram of a turning instruction information according to the present disclosure.

[0036] FIG. 9 is another example of steering instruction information provided by the present disclosure.

[0037] FIG. 10 is an example of a vehicle provided by the present disclosure traveling to an intersection to be steered.

[0038] FIG. 11 is another example of steering instruction information provided by the present disclosure.

[0039] FIG. 12 is an example of an element of dynamic display provided by the present disclosure.

[0040] FIG. 13 is an example of a configuration of a display control device provided by the present disclosure.

[0041] FIG. 14 is an example of a structure of a display control device provided by the present disclosure. DETAILED DESCRIPTION

[0042] To make the objectives, technical solutions, and advantages of the present disclosure more apparent, example embodiments according to the present disclosure will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, and are not all embodiments of the present disclosure. It should be understood that the present disclosure is not limited by the example embodiments described herein.

[0043] In the present disclosure, the word “example” is used to mean an example, an illustration, or an instance. Any embodiment or implementation described as “example” in the present disclosure should not be construed as preferable or advantageous over other embodiments or implementations. Rather, the word “example” is used to present a concept in a specific manner.

[0044] Referring to FIG. 1, an example of an in-vehicle system 100 applicable to the technical solutions of the present disclosure is shown. In some examples, the vehicle equipped with the system 100 can be any type of vehicle, including but not limited to various types of cars, car-based utility vehicles (CUVs), sport utility vehicles (SUVs), trucks, recreation vehicles (RVs), or other mobile machines for transporting people or goods.

[0045] In many cases, the vehicle equipped with the system 100 can be powered by an internal combustion engine. As another possibility, the vehicle equipped with the system 100 can be a hybrid vehicle (HEV) powered by both an internal combustion engine and one or more electric motors, such as a series hybrid electric vehicle (SHEV), a plug-in hybrid electric vehicle (PHEV), a power-split hybrid electric vehicle (PSHEV). As another possibility, the vehicle equipped with the system 100 can also be an electric vehicle (EV) that uses an electric motor as a power source, or other mobile machinery for transporting people or goods. In the following content of the present specification, the vehicle equipped with the on-board system 100 will be referred to as the host vehicle.

[0046] As shown in FIG. 1, the on-board system 100 includes a navigation subsystem 110, a group of environment detection devices 120 that acquire the environment in which the vehicle is located during travel of the vehicle, a group of vehicle travel state detection devices 130, a data processing section 140, a display control section 150, and a display section 160. The above-mentioned components or device groups are coupled together through a communication bus 12. In some examples, the communication bus 12 is used for connection communication between the above-mentioned components or device groups, such as a controller area network (CAN), a local interconnect network (LIN), a FlexRay bus, a media Oriented systems transport (MOST) bus, an in-vehicle Ethernet, and the like. Note that FIG. 1 shows only a part of the on-board system 100, and not all of the components of the on-board system 100.

[0047] In FIG. 1, the navigation subsystem 110 includes a positioning device 111 and a map information storage device 112. The positioning device 111 is capable of positioning the position of the host vehicle based on a positioning system such as a global positioning system (GPS), a Chinese Beidou system, a Russian GLONASS system, a European Galileo system, a Japanese quasi-zenith satellite system (QZSS), an Indian regional navigation satellite system (IRNSS), and the like, and obtaining position information of the host vehicle. The map information storage device 112 stores map information, is capable of acquiring a navigation route to a destination based on the position information obtained from the positioning device 111, and displays the position information and the navigation route in a map application.

[0048] In FIG. 1, the environment detection device group 120 can include a vehicle-mounted communication device 121, a radar 122, a laser range finder 123, and a video camera 124. These devices are capable of acquiring environment information indicating the surrounding environment of the host vehicle.

[0049] The vehicle-mounted communication device 121 can wirelessly communicate with one or more devices directly or via a communication network. The devices capable of communicating with the vehicle-mounted communication device 121 can be other vehicles, road side machines or road side stations, mobile terminal devices used by an occupant of the host vehicle, and the like.

[0050] In some examples, the vehicle-mounted communication device 121 can communicate using various wireless communication systems, such as a wideband code division multiple access (WCDMA) system, an evolved universal terrestrial radio access network (E-UTRAN) system, a next generation radio access network (NG-RAN) system, a long term evolution (LTE) system, a worldwide interoperability for microwave access (WiMAX) communication system, a future 5th generation (5G) system such as a new radio access technology (NR), and a future communication system such as a 6G system.

[0051] In some examples, the in-vehicle communication device 121 can also communicate with a wireless local area network (WLAN) using WiFi. In some embodiments, the in-vehicle communication device 121 can also communicate directly with devices using an infrared link, Bluetooth, or ZigBee. In some examples, the in-vehicle communication device 121 can also communicate with devices using other wireless protocols.

[0052] The radar 122 is used to sense objects within the surrounding environment of the host vehicle, and can also be used to sense the speed and / or heading of the objects. In some examples, the radar 122 can rely on electromagnetic waves or laser light as a medium, and detect objects based on a time of flight (TOF) or phase-shift manner, and detect the position, distance, and relative speed of the detected objects. In some examples, in order to be able to detect objects located in front of, behind, or to the side of the host vehicle, the radar 122 can be configured at an appropriate location on the exterior of the host vehicle.

[0053] The laser range finder 123 can use laser light to sense objects in the environment in which the host vehicle is located. In some embodiments, the laser range finder 123 can include one or more laser sources, a laser scanner, and one or more detectors, among other system components.

[0054] The camera 124 can be used to capture multiple images of the surrounding environment of the host vehicle. The camera 124 can be a still camera or a video camera. In some examples, in order to obtain images of the exterior of the host vehicle, the camera 124 can be located at an appropriate location on the exterior of the host vehicle. For example, in order to obtain images of the front of the host vehicle, the camera 124 can be configured in close proximity to the interior of the host vehicle and the front windshield. Alternatively, the camera 124 can be configured in close proximity to the front bumper or the perimeter of the radiator grill. In some examples, in order to obtain images of the rear of the host vehicle, the camera 124 can be configured in close proximity to the interior of the host vehicle and the rear window. Alternatively, the camera 124 can be configured in close proximity to the rear bumper, the trunk, or the perimeter of the tailgate. In some examples, in order to obtain images of the side of the host vehicle, the camera 124 can be configured in close proximity to the interior of the host vehicle and at least one of the side windows. Alternatively, the camera 124 can be configured in close proximity to the side mirrors, the fenders, or the perimeter of the doors.

[0055] In FIG. 1, the vehicle running state detection device group 130 can include a steering angle sensor 131 that detects a steering angle of the host vehicle, a vehicle speed sensor 132 that detects a running speed of the host vehicle, and an acceleration sensor 133 that detects an acceleration applied to the host vehicle. In some examples, as shown by the dashed box, an inertial sensor 134 that detects a change in position and orientation of the host vehicle based on inertial acceleration can also be included, which in particular implementations can be a combination of the acceleration sensor 133 and a gyroscope.

[0056] In FIG. 1, the data processing section 140 can be implemented as a computing system having a memory, a processor, an input / output interface, and buses connecting these. In some examples, the data processing section 140 causes the processor to execute a plurality of commands by program instructions stored in the memory, to implement processing of data obtained by the navigation subsystem 110, the environment detection device group 120, and the vehicle running state detection device group 130. In some examples, the data processing section 140 can also control, in part or in whole, running of the host vehicle based on the processed data.

[0057] In FIG. 1, as shown by the dashed box, the display control section 150 and the display section 160 can be the main body of a head-up display (HUD) device 170. The display control section 150 can process data received after processing by the data processing section 140, or after receiving data obtained by the navigation subsystem 110, the environment detection device group 120, and the vehicle running state detection device group 130, to obtain display information that needs to be displayed, and project the display information to the windshield of the host vehicle for display by the display section 160.

[0058] In conjunction with the example top view of the host vehicle shown in FIG. 2 and the example perspective view from the driver's seat of the host vehicle shown in FIG. 3, the host vehicle includes a windshield 204 located at the front of the vehicle. The driver and passengers within the passenger cabin 208 of the host vehicle can see the front of the host vehicle through the windshield 204.

[0059] In FIG. 3, the windshield 204 is visually located above the vehicle dashboard 206. The driver can turn a steering wheel 210 within the passenger cabin 208 to steer the vehicle, for example, to change lanes, merge, and park the vehicle. In some embodiments, the steering wheel 210 can be stowed or omitted.

[0060] The head-up display device 170 projects display information 212 (e.g., virtual images) onto a portion of the windshield 204 through one or more apertures (e.g., aperture 216) in the instrument panel 206. While FIG. 3 illustrates an example size of the display information 212, the display information 212 can be presented over a larger or smaller area. Examples of the display information 212 include various vehicle information, such as a current vehicle speed, a current gear of a vehicle transmission, an engine speed, a direction of the vehicle, current infotainment system settings, and / or other vehicle information. The head-up display device 170 provides information to a driver of the vehicle without requiring the driver to remove his or her gaze from objects in front of the vehicle.

[0061] Referring to an example implementation architecture of the head-up display device 170 shown in FIG. 4, the display control section 150 generates a signal 412 based on data processed by the data processing section 140, or data 420 transmitted from the navigation subsystem 110, the environmental detection equipment group 120, and the vehicle travel state detection equipment group 130. In some examples, the display control section 150 can be an electronic device including a central processing unit (CPU), a memory, a communication interface, and a bus, where the CPU, the memory, and the communication interface are communicably connected to each other by the bus. A display control program is stored in the memory, and the CPU implements the functions described above with respect to the display control section 150 by executing the display control program, and performs the display control processing described below.

[0062] The display section 160 can include a light source 161 and a light path assembly 162. The light source 161 outputs light (e.g., virtual images) based on the signal 412 from the display control section 150 to be displayed on the windshield 204. For example, the light source 161 can include one or more lasers and output red, green, and blue light.

[0063] The light path assembly 162 can reflect the output of the light source 161 through the aperture 216 onto the windshield 204. A viewer (e.g., a driver) can view the display information 212 in a display area on the windshield 204 where the display information 212 is projected. In some examples, the light path assembly 162 can include one or more than one mirror (flat mirror) and a concave mirror (magnifying mirror). The output of the light source 161 is reflected to the windshield 204 via the mirror and by the concave mirror to form a virtual image 40 that can be visually observed by the driver, which appears to the driver as if the virtual image 40 is projected onto a projection surface 41 at a set distance in front of the vehicle, but through the projection surface 41, the real environment remains visible. In some examples, the light path assembly 162 can be omitted, and the light source 161 can project the display information 212 directly onto the windshield 204 to form the virtual image 40 on the projection surface 41.

[0064] In combination with the foregoing Figs. 1-4, during the driving of the vehicle, the display control unit 150 determines the orientation information of the driving track of the vehicle according to the position information of the vehicle and the navigation path provided by the navigation subsystem 110, and projects the orientation information of the driving track onto the windshield 204 in the form of indication information (for example, an arrow or a flight line adapted to the orientation direction) through the display unit 160. The driver can drive the vehicle to the destination according to the guidance of the projected indication information. Specifically, as shown in Fig. 5, in the display area 5 of the windshield 204, there is a right-turn intersection in front of the vehicle driving route, when the vehicle approaches the intersection, the turning indication information 51 is displayed to cover the driving road, since the turning indication information 51 is a virtual image formed by the display unit 160, therefore, the reference sign thereof is indicated by a dashed line in Fig. 5. The lane line of the driving road is shown by a black filled block, which is the real environment scene. In some examples, as shown in Fig. 5, the turning indication information 51 is displayed as a plurality of indication blocks arranged at the intersection, which points to the direction of the turn required at the intersection, that is, the right turn. In some examples, the indication information 51 can also be displayed as a curved arrow, and the curved direction of the arrow is adapted to the direction of the turn required at the intersection.

[0065] Although the turning indication information 51 prompts the driver the turning direction at the intersection, the driver still needs to observe or know the actual road conditions of the vehicle driving in the driving process to accurately turn at the intersection. In some examples, in addition to the turning indication information 51, the driver also needs to combine the distance between the vehicle and the intersection where the turn is required to control the turning of the vehicle, as shown in Fig. 5, usually the distance data is displayed in the form of digital information 52 in the display area 5, so that the driver needs to combine the image information (turning indication information 51) and the digital information 52 to control the turning of the vehicle, which increases the thinking burden of the driver, and reduces the driving safety in the case of increasingly complex road surface environment.

[0066] Therefore, the present disclosure expects to provide a more intuitive and accurate display control scheme for the turning conditions of the intersection ahead, to assist the driver to better understand the position of the vehicle and the path of the turning driving in the driving process, improve the perception of the driver to the intersection ahead and the guidance effect of the navigation, improve the safety and convenience, and improve the user experience.

[0067] As shown in Fig. 6, it shows an example of a display control method provided by the present disclosure, which can be executed by the aforementioned head-up display device 170, especially can be executed by the display control unit 150 in the aforementioned head-up display device 170. The method shown in Fig. 6 includes steps S601-S603.

[0068] In step S601, a first distance between the host vehicle and the intersection to be turned is acquired.

[0069] In the present disclosure, the intersection to be turned includes an intersection that is located in front of the host vehicle along a driving route of the host vehicle and closest to the host vehicle. As shown in FIG. 7, the driving route of the host vehicle is indicated by a black thick arrow, and there are two intersections to be turned in front of the host vehicle along the driving route of the host vehicle, which are intersection 71 and intersection 72, respectively. As can be seen from FIG. 7, intersection 71 is the intersection to be turned closest to the host vehicle, and at intersection 71, the host vehicle needs to turn right.

[0070] In some examples, the host vehicle can acquire the position information of the host vehicle in real time according to the positioning device 111 in the navigation subsystem 110. In addition, the position information of the intersection to be turned can also be acquired by using the map information stored in the map information storage device 112. The first distance D between the host vehicle and the intersection to be turned is acquired according to the position information of the host vehicle and the position information of the intersection to be turned.

[0071] In some examples, taking vehicle to infrastructure (V2I) communication in a vehicle networking system as an example, as shown in FIG. 7, a road side unit (RSU) 73 can be provided at the intersection, such as intersection 71 and 72, to provide services for vehicles, for example, to realize vehicle identity recognition, electronic toll collection, electronic demerit points, etc. The road side unit 73 can be installed with a sensing device to realize the collection of road information, thereby providing a vehicle-road cooperation service. The road side unit 73 can interface with a road side traffic sign (for example, an electronic traffic light, or an electronic speed limit sign, etc.) to realize real-time control of the traffic light or the speed limit sign, or can interact with the vehicle communication device 121 of the host vehicle in a wireless communication manner to provide road information to the vehicle, thereby improving the automatic driving or assisted driving function. For example, the road side unit 73 can use dedicated short range communication (DSRC) technology, or can use C-V2X (C-V2X) based on a cellular network to communicate with the host vehicle, such as based on a long term evolution (LTE) communication protocol or based on a 5th generation (5G) communication protocol. Based on the wireless communication interaction process between the host vehicle and the road side unit 73 provided at the intersection to be turned, i.e., intersection 71, the first distance D between the host vehicle and the intersection to be turned can be acquired.

[0072] It should be noted that since the host vehicle is driving along the driving route, the first distance D will gradually decrease, and when the first distance D decreases to zero, it indicates that the host vehicle has driven to the intersection to be turned 71 and needs to turn right according to the driving route.

[0073] In step S602, the display size of the turning instruction information is determined according to the first distance during the host vehicle travels from a predetermined reference distance away from the intersection to be turned to the intersection to be turned.

[0074] In the present disclosure, the turning instruction information is used to indicate the turning direction at the intersection to be turned, and the display size of the turning instruction information is negatively correlated with the first distance.

[0075] In combination with the exemplary intersection to be turned, such as intersection 71 shown in FIG. 7, the real environment as seen by the driver of the host vehicle from the windshield 204 is shown in FIG. 8, and the turning instruction information 81 can be displayed as a plurality of instruction blocks arranged at the intersection 71, which are similar to the instruction information 51 in FIG. 5, and the instruction blocks point to the direction of the turn required at the intersection 71, i.e., a right turn. As such, the turning instruction information 81 can intuitively indicate to the driver the intersection 71 ahead of the driving route and the turning direction required at the intersection 71. However, in order to safely and smoothly turn right at the intersection 71, the driver also needs to combine the first distance D between the host vehicle and the intersection 71 to control the turn of the host vehicle. For example, the driver needs to drive the vehicle to the intersection 71, i.e., the first distance D is small (such as a few meters) or even zero, to safely and smoothly turn right.

[0076] In order to enable the driver to intuitively and accurately perceive the change of the first distance D between the host vehicle and the intersection 71, while reducing the thinking burden of the driver due to receiving too many types of data, in the present disclosure, some features of the display characteristics of the turning instruction information 81 are selected to change with the first distance D, and this feature change enables the driver to physiologically perceive the shortening of the first distance D, so that the driver does not need to be prompted by the additional numerical information 52 shown in FIG. 5 in the display area 5, reducing the types of data received by the driver, reducing the thinking burden of the driver, and thereby improving driving safety.

[0077] In some examples, the display size of the turning instruction information 81 is selected as the display feature that changes with the first distance D, and the display size of the turning instruction information 81 is negatively correlated with the first distance D, i.e., the smaller the first distance D (the closer the host vehicle to the intersection to be turned), the larger the display size of the turning instruction information 81. Since the human visual system has the perception characteristic that "near large and far small" for the distance of an object, the present disclosure increases the display size of the turning instruction information 81 displayed at the intersection 71 to be turned as the first distance D shortens. The driver can intuitively perceive that the host vehicle is gradually approaching the intersection 71 to be turned by observing the change in display size, and perform the turning operation when the host vehicle reaches the intersection 71 to be turned.

[0078] It should be noted that in the case of a long distance from the intersection 71, such as when the first distance D of the vehicle from the intersection 71 is greater than 100-150 m, the need for the vehicle to turn is not urgent, and at this time only the turning indication information 81 is needed to prompt the driver that there is a turning intersection ahead of the driving route and the direction of the turn at the intersection. Based on this, the disclosure can set a reference distance to represent the urgency of the need for the vehicle to turn, that is, from the first distance D reaching the reference distance, the display size of the turning indication information 81 needs to be increased as the first distance D shortens, until the vehicle drives to the intersection 71 to complete the vehicle turn. In some examples, the reference distance can be selected from an appropriate distance value in the range of 100 m to 150 m, such as 140 m, that is, when the vehicle reaches a distance of 140 m from the turning intersection 71, the display size of the turning indication information 81 is determined according to the first distance D based on the technical solution of the disclosure, until the vehicle drives to the turning intersection 71 to complete the vehicle turn. In addition, the reference distance can also be flexibly adjusted according to actual application conditions.

[0079] In step S603, the turning indication information is displayed at the turning intersection according to the display size of the turning indication information.

[0080] For the above steps, the display control unit 150 controls the display unit 160 to dynamically adjust the display size of the turning indication information 81 displayed at the turning intersection 71 in the display area 5, which dynamically increases as the first distance D shortens. Through the change of the display size, the driver can intuitively perceive that the distance between the vehicle and the turning intersection 71 is constantly decreasing. For example, when the first distance D shown in FIG. 7 is 140 m, the display size of the turning indication information 81 displayed at the turning intersection 71 in the display area 5 is shown in FIG. 8. As the vehicle travels along the driving route shown in FIG. 7, when the first distance D is 120 m, the display size of the turning indication information 81 displayed at the turning intersection 71 in the display area 5 is shown in FIG. 9. By comparing FIG. 8 and FIG. 9, it can be seen that as the first distance shortens, the intersection 71 gradually approaches the vehicle, the turning indication information 81 moves downward in the display area 5 so that the turning indication information 81 remains displayed at the position of the intersection 71, and the display size of the turning indication information 81 also gradually increases, so that the driver can perceive that the vehicle is constantly approaching the turning intersection.

[0081] It should be noted that, as shown in FIG. 10, when the host vehicle travels to the intersection 71, the display size of the turning instruction information 81 displayed at the intersection 71 in the display area 5 is as shown in FIG. 11. It can be seen that the display size of the turning instruction information 81 shown in FIG. 11 is not only larger than the display size of the turning instruction information 81 shown in FIG. 8, but also larger than the display size of the turning instruction information 81 shown in FIG. 9. In the present disclosure, the display size of the turning instruction information 81 shown in FIG. 10 is the maximum size that the turning instruction information 81 can display.

[0082] Through the above technical solution, the display size of the turning instruction information is dynamically increased as the distance between the host vehicle and the intersection to be turned shortens. The driver can intuitively judge the distance between the intersection to be turned by perceiving the display size change of the turning instruction information, without the need to receive other data, thereby reducing the thinking burden of the driver and improving safety in complex driving environment.

[0083] For the technical solution shown in FIG. 6, in some implementations, during the period when the host vehicle travels from the predetermined reference distance from the intersection to be turned to the intersection to be turned, the display size of the turning instruction information is determined according to the first distance, comprising:

[0084] During the period when the host vehicle travels from the predetermined reference distance from the intersection to be turned to the intersection to be turned, the first distance is obtained according to the travel distance of the host vehicle;

[0085] The display size of the turning instruction information is determined between the lower limit of the size and the upper limit of the size according to the first distance and the reference distance; wherein the lower limit of the size is the preset display size of the turning instruction information when the host vehicle is at the predetermined reference distance from the intersection to be turned, and the upper limit of the size is the preset display size of the turning instruction information when the host vehicle travels to the intersection to be turned, wherein the lower limit of the size is smaller than the upper limit of the size.

[0086] For the above implementation, in combination with the travel route example shown in the aforementioned FIG. 7, specifically, the lower limit of the size is the minimum display size of the turning instruction information during the period when the host vehicle travels from the predetermined reference distance from the intersection to be turned to the intersection to be turned. The upper limit of the size is the maximum display size of the turning instruction information during the period when the host vehicle travels from the predetermined reference distance from the intersection to be turned to the intersection to be turned. It should be noted that the lower limit of the size and the upper limit of the size can be preset values, and can be flexibly adjusted according to actual application conditions.

[0087] During the period that the host vehicle travels from the predetermined reference distance to the intersection to be turned, the first distance D between the host vehicle and the intersection to be turned is constantly reduced, i.e., the first distance is constantly updated by the travel distance of the host vehicle, and the present disclosure takes the set data collection period as the update period of the first distance. When an update period ends, the first distance can be obtained by subtracting the travel distance of the host vehicle from the reference distance. For the first distance, it is numerically smaller than the reference distance and greater than or equal to zero. In combination with the negative correlation between the display size of the turning indication information and the first distance, the display size of the turning indication information corresponding to the first distance when an update period ends should be greater than the lower limit of the size and less than the upper limit of the size.

[0088] For the above-mentioned implementation and its elaboration, in some examples, the first distance is obtained according to the travel distance of the host vehicle during the period that the host vehicle travels from the predetermined reference distance to the intersection to be turned, including:

[0089] dividing the period that the host vehicle travels from the predetermined reference distance to the intersection to be turned into N data collection periods according to a predetermined data collection period;

[0090] determining the travel distance of the host vehicle in the i-th data collection period according to the travel speed of the host vehicle, where 1≤i≤N;

[0091] subtracting the travel distance of the host vehicle in the first data collection period from the reference distance to obtain the first distance of the host vehicle at the end of the first data collection period;

[0092] when i≥2, subtracting the travel distance of the host vehicle in the i-th data collection period from the first distance of the host vehicle at the end of the i-1-th data collection period to obtain the first distance of the host vehicle at the end of the i-th data collection period.

[0093] For the above-mentioned examples, in detail, the set data collection period can be taken as the update period of the first distance. In the present disclosure, the data collection period can be set to 50ms, 80ms, 100ms, 120ms or 150ms, etc., and can also be flexibly adjusted according to actual application conditions. Based on the data collection period, one or more data collection periods can be divided during the period that the host vehicle travels from the predetermined reference distance to the intersection to be turned.

[0094] In the present disclosure, for the i-th data collection period, the driving speed of the host vehicle in the data collection period can be obtained by using the vehicle speed sensor, and the driving distance of the host vehicle in the i-th data collection period can be obtained by using the product of the driving speed and the length of the data collection period. In the present disclosure, 1≤i≤N, N represents the number of the divided data collection periods, i and N are both positive integers.

[0095] For the 1st data collection period, the first distance of the host vehicle at the end of the 1st data collection period can be obtained by subtracting the driving distance of the host vehicle in the 1st data collection period from the aforementioned reference distance;

[0096] For the i-th data collection period, the first distance of the host vehicle at the end of the i-th data collection period can be obtained by subtracting the driving distance of the host vehicle in the i-th data collection period from the first distance of the host vehicle at the end of the (i-1)th data collection period. It can be understood that, as i increases, the host vehicle gradually approaches the intersection to be turned 71, and the first distance at the end of the i-th data collection period will gradually decrease.

[0097] For the above implementation, in some examples, the display size of the turning instruction information is determined between the lower limit and the upper limit of the size according to the first distance and the reference distance, including:

[0098] The ratio of the first distance of the host vehicle at the end of the i-th data collection period to the reference distance is obtained;

[0099] According to the ratio, the display size of the turning instruction information corresponding to the end of the i-th data collection period is obtained by interpolation between the lower limit and the upper limit of the size.

[0100] For the above example, the display size of the turning instruction information corresponding to the end of the i-th data collection period will increase as i increases, in addition to being between the lower limit and the upper limit of the size. In the present disclosure, the first distance at the end of the i-th data collection period is Di, and the reference distance is L, then the display size of the turning instruction information at the end of the i-th data collection period can be obtained by interpolation between the lower limit and the upper limit of the size according to the ratio of Di to L. It can be known that, when i≥2, the display size of the turning instruction information at the end of the (i-1)th data collection period is smaller than the display size of the turning instruction information at the end of the i-th data collection period.

[0101] For example, if the reference distance is set to 140m, the vehicle speed to 36km / h, and the data acquisition period to 100ms, then it can be known that the vehicle travels approximately 1m during each data acquisition period. When the first data acquisition period ends, the first distance decreases from 140m to 139m. At this point, based on the ratio of 139 to 140, the distance is calculated within the lower limit N of the dimension. min Up to size limit N max Interpolation is performed between the values ​​to obtain the display size N1 of the turn signal information at the end of the first data acquisition period. It can be understood that N... min <N1<N max When the second data collection period ended, the first distance decreased from 139m to 138m. At this point, based on the ratio of 138 to 140, the lower limit of the size N is determined. min Up to size limit N max Interpolation is performed between the intervals to obtain the display size N2 of the turn signal information at the end of the second data acquisition period. It can be understood that N... min <N1<N2<N max It should be noted that the vehicle's speed is collected during each data collection period to calculate the distance traveled within that period, thus obtaining the first distance at the end of each data collection period. Following this process, when the vehicle reaches intersection 71, the first distance at the end of the corresponding data collection period is 0. Therefore, the display size of the turn indicator information at the end of that data collection period is N. max This means displaying the turn signal information at the largest possible display size, so that the driver can perceive that they have reached intersection 71 and need to control the vehicle to turn right based on the change in the display size of the turn signal information.

[0102] It should be noted that, combining Figures 8 and 9 above, the display size of the turn instruction information is continuously determined according to the data collection period. Therefore, the turn instruction information 81 ultimately displayed in display area 5 will also be displayed according to the data collection period, causing a stuttering effect in the change of the display size of the turn instruction information 81 observed by the driver. To avoid this stuttering, in some examples, the turn instruction information is displayed at the intersection where the driver is about to turn based on its display size, including:

[0103] During the first data collection period, through smoothing processing, the display size of the turn instruction information is changed from the lower limit to the display size of the turn instruction information corresponding to the end of the first data collection period, and displayed in the display area to fit the intersection to be turned;

[0104] When i≥2, in the ith data collection period, the display size of the turning instruction information is changed from the display size of the turning instruction information corresponding to the ego vehicle at the end of the (i-1)th data collection period to the display size of the turning instruction information corresponding to the ego vehicle at the end of the ith data collection period through smoothing processing, and is displayed in the display area in the form of sticking to the intersection to be turned.

[0105] For the above examples, specifically, in order to avoid the occurrence of the above-mentioned freezing phenomenon in the changing process, the display size of the turning instruction information is changed in each data collection period through smoothing processing, so that the display size of the turning instruction information changes to present a smooth video effect when displayed in the display area 5.

[0106] For the foregoing technical solutions, their implementation manners and examples, it needs to be explained that in addition to the display size of the turning instruction information, it needs to be explained that the visual system of the human body for distance perception will also be reflected in the phenomenon that the closer object moves faster in the field of view relative to the farther object. In the present disclosure, the above-mentioned relative motion can also provide a means for the driver to visually perceive distance information.

[0107] Based on this, in some implementation manners, when the turning instruction information includes elements dynamically moving towards the turning direction at the intersection to be turned, the method further includes:

[0108] During the period when the ego vehicle travels from a predetermined reference distance from the intersection to be turned to the intersection to be turned, the moving speed of the dynamically displayed element is determined according to the first distance; wherein the moving speed of the dynamically displayed element is negatively related to the first distance;

[0109] The turning instruction information is displayed at the intersection to be turned according to the moving speed of the dynamically displayed element.

[0110] For the above-mentioned implementation manners, specifically, the elements capable of dynamic display can be filled in the turning instruction information 81 in a rendering manner, such as various shaped image elements, light spots with strong color contrast with the turning instruction information 81, etc. As shown in FIG. 12, taking a circle as an example, the moving direction of these elements is the turning direction at the intersection to be turned shown by the arrow, i.e. moving to the right.

[0111] In combination with the foregoing technical solutions, in the present disclosure, as the vehicle gradually approaches the intersection to be turned, the moving speed of the circular image can be accelerated, so that the driver accurately understands that the ego vehicle is gradually approaching or has arrived at the intersection to be turned 71 based on the perceived increase in the moving speed, and turns the ego vehicle to the right when arriving at the intersection to be turned 71.

[0112] For the above implementation, in some examples, the moving speed of the dynamically displayed element is determined according to the first distance during the period when the host vehicle travels from the predetermined reference distance to the intersection to be turned, comprising:

[0113] dividing the period when the host vehicle travels from the predetermined reference distance to the intersection to be turned into N data collection periods according to a predetermined data collection period;

[0114] determining the travel distance of the host vehicle in the i th data collection period according to the travel speed of the host vehicle, wherein 1≤i≤N;

[0115] subtracting the travel distance of the host vehicle in the first data collection period from the reference distance to obtain the first distance of the host vehicle at the end of the first data collection period;

[0116] when i≥2, subtracting the travel distance of the host vehicle in the i th data collection period from the first distance of the host vehicle at the end of the i-1 th data collection period to obtain the first distance of the host vehicle at the end of the i th data collection period;

[0117] obtaining the ratio of the first distance of the host vehicle at the end of the i th data collection period to the reference distance;

[0118] according to the ratio, interpolating between the lower limit of the moving speed and the upper limit of the moving speed to obtain the moving speed of the dynamically displayed element corresponding to the i th data collection period; wherein the lower limit of the moving speed is the preset moving speed of the dynamically displayed element when the host vehicle is at the predetermined reference distance from the intersection to be turned, the upper limit of the moving speed is the preset moving speed of the dynamically displayed element when the host vehicle travels to the intersection to be turned, and the lower limit of the speed is less than the upper limit of the speed.

[0119] For the above example, in combination with the foregoing technical solution, the travel distance in each data collection period is obtained by using the vehicle travel speed, and the first distance of the host vehicle at the end of the data collection period is obtained according to the travel distance. For specific details of the first distance, please refer to the foregoing technical solution, which will not be repeated here.

[0120] In the present disclosure, the lower limit of the moving speed V min is the minimum speed of the element moving during the period when the host vehicle travels from the predetermined reference distance to the intersection to be turned. The upper limit of the moving speed V maxthe maximum speed of the element moving during the period from when the vehicle travels from the predetermined reference distance to the intersection to be turned to the intersection to be turned. For each data collection period, the first distance at the end of the data collection period is numerically smaller than the reference distance and greater than or equal to zero, so the moving speed of the dynamically displayed element at the end of each data collection period should be greater than the lower limit of the moving speed and less than or equal to the upper limit of the moving speed.

[0121] Specifically, taking the i th data collection period as an example, for the i th data collection period, the moving speed of the corresponding dynamically displayed element increases with the increase of i in addition to being greater than the lower limit of the moving speed and less than the upper limit of the moving speed. In the present disclosure, the first distance at the end of the i th data collection period is Di, and the reference distance is L, so the moving speed of the dynamically displayed element at the end of the i th data collection period can be obtained by interpolating from the lower limit of the moving speed to the upper limit of the moving speed according to the ratio of Di to L. It can be seen that the moving speed of the dynamically displayed element at the end of the i-1 th data collection period is less than the moving speed of the dynamically displayed element at the end of the i th data collection period. It should be noted that with the continuous increase of i, until the vehicle travels to the intersection to be turned 71, the first distance at the end of the data collection period corresponding to this moment is 0, and the moving speed of the dynamically displayed element at the end of the data collection period is V max That is, the elements in the turning instruction information move at the maximum moving speed, so that the driver can perceive that the intersection to be turned 71 has been reached and needs to control the vehicle to turn right according to the change of the moving speed of the elements in the turning instruction information.

[0122] For the above implementation manner, in some examples, the displaying the turning instruction information at the intersection to be turned according to the moving speed of the dynamically displayed element comprises:

[0123] controlling the dynamically displayed element to move according to the moving speed of the dynamically displayed element corresponding to the i th data collection period of the vehicle, and displaying the dynamically displayed element in the display area to fit the intersection to be turned.

[0124] It should be noted that in the present disclosure, the change of the display size of the turning instruction information is combined with the change of the moving speed of the elements in the turning instruction information, and the two reaction phenomena of the human eye data system for perceiving distance information are utilized at the same time, so that the driver can more accurately understand the position of the vehicle and the turning path, and further improve the driver's perception of the turning intersection ahead and the guiding effect of the navigation.

[0125] Based on the same inventive concept of the foregoing technical solutions, referring to FIG. 13, a display control device 1300 provided by the present disclosure is shown, which includes an acquisition unit 1301, a determination unit 1302, and a control unit 1303.

[0126] The acquisition unit 1301 is configured to acquire a first distance between the host vehicle and a to-be-turned intersection; wherein the to-be-turned intersection includes an intersection that is located in front of the host vehicle along a driving route of the host vehicle and closest to the host vehicle and needs to be turned;

[0127] The determination unit 1302 is configured to determine a display size of turning instruction information according to the first distance during the host vehicle drives from a predetermined reference distance away from the to-be-turned intersection to the to-be-turned intersection; wherein the turning instruction information is used to indicate a turning direction at the to-be-turned intersection, and the display size of the turning instruction information is in a negative correlation with the first distance;

[0128] The control unit 1303 is configured to display the turning instruction information at the to-be-turned intersection according to the display size of the turning instruction information.

[0129] In some examples, the determination unit 1302 is configured to:

[0130] acquire the first distance according to a driving distance of the host vehicle during the host vehicle drives from the predetermined reference distance away from the to-be-turned intersection to the to-be-turned intersection;

[0131] determine the display size of the turning instruction information between a lower limit of size and an upper limit of size according to the first distance and the reference distance; wherein the lower limit of size is a preset display size of the turning instruction information when the host vehicle is at the predetermined reference distance away from the to-be-turned intersection, the upper limit of size is a preset display size of the turning instruction information when the host vehicle drives to the to-be-turned intersection, and the lower limit of size is smaller than the upper limit of size.

[0132] In some examples, the determination unit 1302 is configured to:

[0133] divide a period during which the host vehicle drives from the predetermined reference distance away from the to-be-turned intersection to the to-be-turned intersection into N data collection periods according to a predetermined data collection period;

[0134] determine a driving distance of the host vehicle in an i-th data collection period according to a driving speed of the host vehicle, wherein 1≤i≤N;

[0135] subtract the driving distance of the host vehicle in the first data collection period from the reference distance to obtain a first distance of the host vehicle at the end of the first data collection period;

[0136] When i≥2, the first distance of the host vehicle at the end of the i-1th data collection period is subtracted by the travel distance of the host vehicle in the ith data collection period, to obtain the first distance of the host vehicle at the end of the ith data collection period.

[0137] In some examples, the determining unit 1302 is configured to:

[0138] obtain a ratio of the first distance of the host vehicle at the end of the current data collection period to the reference distance;

[0139] According to the ratio, interpolate between the lower limit of the size and the upper limit of the size to obtain the display size of the steering instruction information corresponding to the host vehicle at the end of the ith data collection period.

[0140] In some examples, the control unit 1303 is configured to:

[0141] In the 1st data collection period, the display size of the steering instruction information is changed from the lower limit of the size to the display size of the steering instruction information corresponding to the host vehicle at the end of the 1st data collection period through smoothing processing, and is displayed in the display area to fit the to-be-turned intersection.

[0142] When i≥2, in the ith data collection period, the display size of the steering instruction information is changed from the display size of the steering instruction information corresponding to the host vehicle at the end of the i-1th data collection period to the display size of the steering instruction information corresponding to the host vehicle at the end of the ith data collection period through smoothing processing, and is displayed in the display area to fit the to-be-turned intersection.

[0143] In some examples, when the steering instruction information includes an element that dynamically moves towards the turning direction at the to-be-turned intersection, the determining unit 1302 is further configured to: during the period that the host vehicle travels from the predetermined reference distance away from the to-be-turned intersection to the to-be-turned intersection, determine the moving speed of the dynamically displayed element according to the first distance; wherein the moving speed of the dynamically displayed element is negatively correlated with the first distance.

[0144] The control unit 1303 is further configured to display the steering instruction information at the to-be-turned intersection according to the moving speed of the dynamically displayed element.

[0145] In some examples, the determining unit 1302 is further configured to:

[0146] divide the period that the host vehicle travels from the predetermined reference distance away from the to-be-turned intersection to the to-be-turned intersection into N data collection periods according to a predetermined data collection period;

[0147] determining a driving distance of the host vehicle in the i-th data collection period according to a driving speed of the host vehicle, wherein 1≤i≤N;

[0148] subtracting the driving distance of the host vehicle in the first data collection period from the reference distance to obtain a first distance of the host vehicle at the end of the first data collection period;

[0149] when i≥2, subtracting the driving distance of the host vehicle in the i-th data collection period from the first distance of the host vehicle at the end of the (i-1)-th data collection period to obtain a first distance of the host vehicle at the end of the i-th data collection period;

[0150] obtaining a ratio of the first distance of the host vehicle at the end of the i-th data collection period to the reference distance;

[0151] interpolating between a lower limit of the moving speed and an upper limit of the moving speed according to the ratio to obtain a moving speed of the dynamically displayed element corresponding to the i-th data collection period of the host vehicle, wherein the lower limit of the moving speed is a preset moving speed of the dynamically displayed element when the host vehicle is at a predetermined reference distance from the intersection to be turned, the upper limit of the moving speed is a preset moving speed of the dynamically displayed element when the host vehicle drives to the intersection to be turned, and the lower limit of the moving speed is less than the upper limit of the moving speed.

[0152] In some examples, the control unit 1303 is further configured to:

[0153] controlling the dynamically displayed element to move according to the moving speed of the dynamically displayed element corresponding to the i-th data collection period of the host vehicle and display on the display area in conformity with the intersection to be turned.

[0154] In some examples, the obtaining unit 1301 is configured to:

[0155] obtaining position information of the host vehicle in real time according to a positioning device in a navigation system of the host vehicle;

[0156] obtaining position information of the intersection to be turned using map information stored by a map information storage device in the navigation system of the host vehicle;

[0157] obtaining a first distance between the host vehicle and the intersection to be turned according to the position information of the host vehicle and the position information of the intersection to be turned.

[0158] In some examples, the obtaining unit 1301 is configured to:

[0159] According to a wireless communication interaction process between the on-vehicle communication device of the vehicle and a roadside unit arranged at the intersection to be turned, a first distance between the vehicle and the intersection to be turned is obtained.

[0160] Referring to FIG. 14, a structural block diagram of the display control apparatus 1300 is shown according to an example embodiment of the present disclosure. In some examples, the display control apparatus 1300 has a communication function and can access a wired network or a wireless network. In some examples, the display control apparatus 1300 can receive data based on the accessed wired network or wireless network. It can be understood that the display control apparatus 1300 undertakes the calculation and processing work of the technical solutions of the present disclosure, which are not limited by the present disclosure.

[0161] As shown in FIG. 14, the display control apparatus 1300 in the present disclosure can include one or more of the following components: a processor 1410 and a memory 1420.

[0162] Optionally, the processor 1410 connects various parts in the entire display control apparatus 1300 by various interfaces and lines, and performs various functions of the display control apparatus 1300 and processes data by running or executing instructions, programs, code sets or instruction sets stored in the memory 1420, and calling data stored in the memory 1420. Optionally, the processor 1410 can be implemented in at least one of a hardware form of a digital signal processing (DSP), a field-programmable gate array (FPGA), a programmable logic array (PLA). The processor 1410 can be integrated with one or a combination of a central processing unit (CPU), a graphics processing unit (GPU), a neural-network processing unit (NPU) and a baseband chip. Among them, the CPU mainly processes operating systems, user interfaces and application programs, etc.; the GPU is responsible for rendering and drawing the content to be displayed on the touch display screen; the NPU is used to realize artificial intelligence (AI) functions; and the baseband chip is used to process wireless communication. It can be understood that the above-mentioned baseband chip can also not be integrated into the processor 1410, but be realized by a separate chip.

[0163] The memory 1420 can include a random access memory (RAM) and can also include a read-only memory (ROM). Optionally, the memory 1420 includes a non-transitory computer-readable storage medium. The memory 1420 can be used to store instructions, programs, codes, code sets, or instruction sets. The memory 1420 can include a program storage area and a data storage area, where the program storage area can store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playing function, an image playing function, etc.), instructions for implementing the above various method embodiments, etc., and the data storage area can store data created according to use of the display control apparatus 1300, etc.

[0164] In addition, those skilled in the art can understand that the structure of the display control apparatus 1300 shown in the above-described figures does not constitute a limitation on the display control apparatus 1300, and the display control apparatus 1300 can include more or fewer components than shown, or combine certain components, or different component arrangements. For example, the display control apparatus 1300 also includes a display screen, a camera assembly, a microphone, a speaker, a radio frequency circuit, an input unit, a sensor (such as an acceleration sensor, an angular velocity sensor, a light sensor, etc.), an audio circuit, a WiFi module, a power supply, a Bluetooth module, etc., which are not described here in detail.

[0165] The present disclosure also provides a computer-readable storage medium storing at least one instruction for being executed by a processor to implement the display control method according to the above various embodiments.

[0166] The present disclosure also provides a computer program product including computer instructions stored in a computer-readable storage medium; a processor of the display control apparatus 1300 reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions to cause the display control apparatus 1300 to perform the display control method according to the above various embodiments.

[0167] Those skilled in the art should understand that, in one or more examples described above, the functions described in the specification of the present disclosure can be implemented in hardware, software, firmware or any combination thereof. When implemented in software, these functions can be stored in a computer readable medium or transmitted as one or more instructions or code on a computer readable medium. The computer readable medium includes computer storage medium and communication medium, wherein the communication medium includes any medium that facilitates the transfer of computer program from one place to another. The storage medium can be any available medium accessible by a general purpose or special purpose computer.

[0168] It should be noted that the flowchart and block diagrams in the drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams can represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical functions. It should also be noted that in some alternative implementations, the functions noted in the blocks can occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently or in the reverse order, depending on the functionality involved. It will also be noted that each block of the block diagrams and / or flowchart illustrations, and combinations thereof, can be implemented by a dedicated hardware-based system that performs the specified functions or operations, or combinations of hardware and software.

[0169] In general, the various example embodiments of the present disclosure can be implemented in hardware or special-purpose circuits, software, firmware, logic, or any combination thereof. Some aspects can be implemented in hardware, while other aspects can be implemented in firmware or software which can be executed by a controller, microprocessor or other computing device, Although the various aspects of embodiments of the present disclosure can be illustrated and described as block diagrams, flow charts, or using some other pictorial representation, it is well understood that these blocks, apparatus, systems, techniques or methods described herein can be implemented in, as non-limiting examples, hardware, software, firmware, special purpose circuits or logic, general purpose hardware or controler or other computing devices, or some combination thereof.

[0170] The example embodiments of the present disclosure described above in detail are merely illustrative, and not restrictive. Those skilled in the art should understand that various modifications and combinations can be made to these embodiments or features thereof without departing from the principles and spirits of the present disclosure, and such modifications should fall within the scope of the present disclosure. Industrial Applicability

[0171] In the embodiment, by controlling the display size of the turning instruction information to dynamically increase as the distance between the vehicle and the intersection to be turned shortens, the driver can intuitively judge the distance between the vehicle and the intersection to be turned by perceiving the change of the display size of the turning instruction information, without the need to additionally receive other data, thereby reducing the thinking burden of the driver and improving the safety in complex driving environment.

Claims

1. A display control method characterized by comprising: The method comprises: acquiring a first distance between the vehicle and a to-be-turned intersection; wherein the to-be-turned intersection comprises an intersection that is located in front of the vehicle along a driving route of the vehicle and closest to the vehicle and needs to be turned; during driving of the vehicle from a predetermined reference distance from the to-be-turned intersection to the to-be-turned intersection, determining a display size of turning instruction information according to the first distance; wherein the turning instruction information is used for indicating a turning direction at the to-be-turned intersection, and the display size of the turning instruction information is in a negative correlation with the first distance; displaying the turning instruction information at the to-be-turned intersection according to the display size of the turning instruction information.

2. The method of claim 1, wherein, The determining of the display size of the turning instruction information according to the first distance during driving of the vehicle from the predetermined reference distance from the to-be-turned intersection to the to-be-turned intersection comprises: during driving of the vehicle from the predetermined reference distance from the to-be-turned intersection to the to-be-turned intersection, acquiring the first distance according to a driving distance of the vehicle; determining the display size of the turning instruction information between a lower limit and an upper limit of a set size according to the first distance and the reference distance; wherein the lower limit of the size is a preset display size of the turning instruction information when the vehicle is at the predetermined reference distance from the to-be-turned intersection, and the upper limit of the size is a preset display size of the turning instruction information when the vehicle drives to the to-be-turned intersection, wherein the lower limit of the size is smaller than the upper limit of the size.

3. The method of claim 2, wherein, The acquiring of the first distance according to the driving distance of the vehicle during driving of the vehicle from the predetermined reference distance from the to-be-turned intersection to the to-be-turned intersection comprises: dividing a period during which the vehicle drives from the predetermined reference distance from the to-be-turned intersection to the to-be-turned intersection into N data acquisition periods according to a predetermined data acquisition period; determining a driving distance of the vehicle in an i-th data acquisition period according to a driving speed of the vehicle, wherein 1≤i≤N; subtracting the driving distance of the vehicle in the first data acquisition period from the reference distance to obtain the first distance of the vehicle at the end of the first data acquisition period; when i≥2, subtracting the driving distance of the vehicle in the i-th data acquisition period from the first distance of the vehicle at the end of the i-1-th data acquisition period to obtain the first distance of the vehicle at the end of the i-th data acquisition period.

4. The method of claim 3, wherein, The determining of the display size of the turning instruction information between the lower limit and the upper limit of the set size according to the first distance and the reference distance comprises: acquiring a ratio of the first distance of the vehicle at the end of the i-th data acquisition period to the reference distance; according to the ratio, interpolating between the lower limit of the size and the upper limit of the size to obtain a display size of the turning instruction information corresponding to the vehicle at the end of the i-th data acquisition period.

5. The method of claim 4, wherein, The displaying of the turning instruction information at the to-be-turned intersection according to the display size of the turning instruction information comprises: In the first data collection period, the display size of the turning instruction information is changed from the size lower limit to the display size of the turning instruction information corresponding to the host vehicle at the end of the first data collection period through smoothing processing, and is displayed in the display area to fit the intersection to be turned; When i≥2, in the i-th data collection period, the display size of the turning instruction information is changed from the display size of the turning instruction information corresponding to the host vehicle at the end of the i-1-th data collection period to the display size of the turning instruction information corresponding to the host vehicle at the end of the i-th data collection period through smoothing processing, and is displayed in the display area to fit the intersection to be turned.

6. The method of claim 1, wherein, When the turning instruction information includes an element dynamically moving towards the turning direction at the intersection to be turned, the method further comprises: During the period when the host vehicle travels from a predetermined reference distance from the intersection to be turned to the intersection to be turned, the moving speed of the dynamically displayed element is determined according to the first distance; wherein the moving speed of the dynamically displayed element is negatively correlated with the first distance; The turning instruction information is displayed at the intersection to be turned according to the moving speed of the dynamically displayed element.

7. The method of claim 6, wherein, The determination of the moving speed of the dynamically displayed element during the period when the host vehicle travels from a predetermined reference distance from the intersection to be turned to the intersection to be turned according to the first distance comprises: N data collection periods are divided according to a predetermined data collection period during the period when the host vehicle travels from a predetermined reference distance from the intersection to be turned to the intersection to be turned; The travel distance of the host vehicle in the i-th data collection period is determined according to the travel speed of the host vehicle, wherein 1≤i≤N; The first distance of the host vehicle at the end of the first data collection period is obtained by subtracting the travel distance of the host vehicle in the first data collection period from the reference distance; When i≥2, the first distance of the host vehicle at the end of the i-th data collection period is obtained by subtracting the travel distance of the host vehicle in the i-th data collection period from the first distance of the host vehicle at the end of the i-1-th data collection period; The ratio of the first distance of the host vehicle at the end of the i-th data collection period to the reference distance is obtained; According to the ratio, the moving speed of the dynamically displayed element corresponding to the host vehicle in the i-th data collection period is obtained by interpolation between the lower limit of the moving speed and the upper limit of the moving speed; wherein the lower limit of the moving speed is the preset moving speed of the dynamically displayed element when the host vehicle is at a predetermined reference distance from the intersection to be turned, the upper limit of the moving speed is the preset moving speed of the dynamically displayed element when the host vehicle travels to the intersection to be turned, and the lower limit of the moving speed is less than the upper limit of the moving speed.

8. The method of claim 7, wherein, The display of the turning instruction information at the intersection to be turned according to the moving speed of the dynamically displayed element comprises: According to the moving speed of the corresponding dynamic display element of the vehicle in the i-th data collection period, the dynamic display element is controlled to move, and the dynamic display element is displayed on the display area to fit the intersection to be turned.

9. The method of claim 1, wherein, The first distance between the vehicle and the intersection to be turned is obtained by: Real-time position information of the vehicle is obtained by a positioning device in a navigation system of the vehicle; Position information of the intersection to be turned is obtained by map information stored in a map information storage device in the navigation system of the vehicle; The first distance between the vehicle and the intersection to be turned is obtained according to the position information of the vehicle and the position information of the intersection to be turned.

10. A display control device, characterized by comprising: The display control device comprises an obtaining unit, a determining unit and a control unit, wherein: The obtaining unit is configured to obtain the first distance between the vehicle and the intersection to be turned, wherein the intersection to be turned is the intersection closest to the vehicle and located in front of the vehicle along the driving route of the vehicle; The determining unit is configured to determine the display size of the turning instruction information according to the first distance during the vehicle driving from a predetermined reference distance to the intersection to be turned, wherein the turning instruction information is used to indicate the turning direction at the intersection to be turned, and the display size of the turning instruction information is negatively correlated with the first distance; The control unit is configured to display the turning instruction information at the intersection to be turned according to the display size of the turning instruction information.

11. A display control device characterized by comprising: The display control device comprises a processor and a memory, and the processor is used to execute instructions stored in the memory to realize the display control method according to any one of claims 1 to 9.

12. A computer-readable storage medium, characterized in that, The computer readable storage medium stores at least one instruction for being executed by a processor to realize the display control method according to any one of claims 1 to 9.

13. A head-up display device, characterized by comprising: The head-up display device comprises a display control unit and a display unit, wherein: The display control unit is configured to obtain the first distance between the vehicle and the intersection to be turned, wherein the intersection to be turned is the intersection closest to the vehicle and located in front of the vehicle along the driving route of the vehicle; During the vehicle driving from a predetermined reference distance to the intersection to be turned, the display size of the turning instruction information is determined according to the first distance, wherein the turning instruction information is used to indicate the turning direction at the intersection to be turned, and the display size of the turning instruction information is negatively correlated with the first distance; The turning instruction information is displayed at the intersection to be turned according to the display size of the turning instruction information; The display unit is configured to project and display the turning instruction information to the windshield of the vehicle based on the control of the display control unit.

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