Prompting method and system for preventing vehicle rear-end collisions, and vehicle

Abstract

A prompting method for preventing vehicle rear-end collisions, comprising: acquiring the actual vehicle speed of a current vehicle; acquiring the real-time vehicle distance between the current vehicle and a leading vehicle adjacent thereto on the same lane; and, on the basis of the actual vehicle speed of the current vehicle and the real-time vehicle distance, controlling a display apparatus (104) located at the tail of the current vehicle to perform corresponding dynamic display. Without changing vehicle brake lamps and braking the vehicle, the prompting method enables a following vehicle to be aware of the real-time vehicle distance between the current vehicle and the leading vehicle in real time, thus allowing the following vehicle to make pre-judgments in advance so as to avoid rear-end collisions caused by sudden braking. Further provided are a prompting system for preventing vehicle rear-end collisions, and a vehicle.

Description

Vehicle rear-end collision prevention prompting method, system and vehicle

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on December 8, 2023, with application number 202311686422.4, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The embodiments of the present application relate to, but are not limited to, the field of automobile technology, and in particular relate to, but are not limited to, a vehicle rear-end collision prevention prompt method, system, and vehicle. Background Art

[0004] When a vehicle is driving on the road, it may sometimes encounter heavy traffic. When following a vehicle, in order to maintain a safe gap, the driver will usually always pay attention to whether the brake lights of the vehicle in front are on to decide whether to brake to prevent rear-end collision.

[0005] Summary of the Invention

[0006] The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

[0007] One aspect of an embodiment of the present application provides a vehicle rear-end collision prevention prompt method. The method includes: obtaining the actual speed of a current vehicle; obtaining the real-time distance between the current vehicle and a preceding vehicle adjacent to the current vehicle in the same lane; and, based on the actual speed of the current vehicle and the real-time distance, controlling a display device located at the rear of the current vehicle to display a corresponding dynamic prompt.

[0008] In some embodiments, the method further includes: presetting the vehicle speed to multiple gears; and setting a corresponding safety distance according to the vehicle speed of each gear.

[0009] In some embodiments, based on the actual speed of the current vehicle and the actual vehicle distance, the display device located at the rear of the current vehicle is controlled to perform corresponding dynamic prompt display, including: determining the safety distance corresponding to the actual speed of the current vehicle as the real-time safety distance; according to the size of the real-time vehicle distance relative to the real-time safety distance, controlling the display device to perform different dynamic prompt displays.

[0010] In some embodiments, the display device includes a plurality of display lights, and the plurality of display lights form a progress bar for indicating the level of warning. The control of the display device to perform different dynamic prompt displays includes: controlling different numbers of the display lights to light up to dynamically display the size of the real-time vehicle distance relative to the real-time safety distance, wherein the closer the real-time vehicle distance is to the real-time safety distance, the more the number of display lights that are controlled to light up.

[0011] In some embodiments, controlling the display device to display different dynamic prompts further includes: controlling the display light to dynamically display different colors.

[0012] In some embodiments, the method also includes: pre-dividing the entire progress bar into a first progress interval, a second progress interval and a third progress interval in sequence according to the size of the real-time vehicle distance relative to the real-time safety distance, wherein the display lights in the first progress interval, the second progress interval and the third progress interval display green, yellow and red respectively; when the real-time vehicle distance is greater than or equal to the first multiple of the real-time safety distance, the progress on the progress bar is in the first progress interval; when the real-time vehicle distance is less than the first multiple of the real-time safety distance and greater than or equal to the second multiple of the real-time safety distance, the progress on the progress bar is in the second progress interval; when the real-time vehicle distance is less than the second multiple of the real-time safety distance, the progress on the progress bar is in the third progress interval.

[0013] In some embodiments, the display lights are controlled to dynamically display different dynamic prompts, including: when the progress on the progress bar is in the first progress interval, the display lights in the first progress interval are controlled to display green; when the progress on the progress bar reaches the second progress interval, the display lights in the second progress interval are controlled to display yellow; when the progress on the progress bar reaches the third progress interval, the display lights in the third progress interval are controlled to display red; and when the real-time vehicle distance is less than the real-time safety distance, all the display lights on the progress bar are controlled to light up and flash.

[0014] Another aspect of an embodiment of the present application provides a vehicle rear-end collision prevention warning system. The system includes a vehicle speed acquisition device, a vehicle distance detector, a display device, and a control device. The vehicle speed acquisition device is used to obtain the actual speed of the current vehicle. The vehicle distance detector is located in front of the current vehicle and is used to obtain the real-time distance between the current vehicle and the vehicle in front of it that is adjacent to the current vehicle in the same lane. The display device is located at the rear of the current vehicle. The control device is used to control the display device to display corresponding dynamic warnings based on the actual speed of the current vehicle and the real-time distance.

[0015] In some embodiments, the control device stores the safety distance corresponding to the vehicle speed of each gear.

[0016] In some embodiments, the control device is used to determine the safety distance corresponding to the actual speed of the current vehicle as the real-time safety distance, and to control the display device to display different dynamic prompts according to the size of the real-time vehicle distance relative to the real-time safety distance.

[0017] In some embodiments, the display device includes a plurality of display lights, and the plurality of display lights form a progress bar for indicating the level of warning. The control device is used to control different numbers of the display lights to light up according to the size of the real-time vehicle distance relative to the real-time safety distance. The closer the real-time vehicle distance is to the real-time safety distance, the more the control device controls the display lights to light up.

[0018] In some embodiments, the control device is further used to control the display light on the progress bar to dynamically display different colors.

[0019] In some embodiments, the control device is also used to pre-divide the entire progress bar into a first progress interval, a second progress interval and a third progress interval in sequence according to the size of the real-time vehicle distance relative to the real-time safety distance, wherein the display lights in the first progress interval, the second progress interval and the third progress interval display green, yellow and red respectively; when the real-time vehicle distance is greater than or equal to the first multiple of the real-time safety distance, the progress on the progress bar is in the first progress interval; when the real-time vehicle distance is less than the first multiple of the real-time safety distance and greater than or equal to the second multiple of the real-time safety distance, the progress on the progress bar is in the second progress interval; when the real-time vehicle distance is less than the second multiple of the real-time safety distance, the progress on the progress bar is in the third progress interval.

[0020] In some embodiments, controlling the display device to display different dynamic prompts also includes: when the progress on the progress bar is in the first progress interval, controlling the display light in the first progress interval to display green; when the progress on the progress bar reaches the second progress interval, controlling the display light in the second progress interval to display yellow; when the progress on the progress bar reaches the third progress interval, controlling the display light in the third progress interval to display red; and when the real-time vehicle distance is less than the real-time safety distance, controlling all the display lights on the progress bar to light up and flash.

[0021] Another aspect of an embodiment of the present application provides a vehicle, comprising the vehicle rear-end collision prevention warning system as described above.

[0022] The vehicle rear-end collision prevention prompt method, system, and vehicle of one or more embodiments of the present application can display the real-time distance change between the current vehicle and the vehicle in front of it that is adjacent to it in the same lane, and transmit the distance to the vehicle in front to the rear vehicle in real time, giving the rear vehicle a corresponding reminder so as to leave the driver of the rear vehicle with braking prediction time, thereby relieving driving tension and avoiding the occurrence of vehicle rear-end collision accidents.

[0023] The vehicle rear-end collision prevention warning method, system, and vehicle of one or more embodiments of the present application can allow the following vehicle to know the real-time distance between the current vehicle and the preceding vehicle in real time without changing the vehicle's brake lights or braking, thereby enabling the following vehicle to make an early prediction and avoid a rear-end collision caused by sudden braking. Other aspects will become apparent after reading and understanding the accompanying drawings and detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG1 is a flow chart of a vehicle rear-end collision prevention prompt method according to an embodiment of the present application.

[0025] FIG2 is a schematic diagram of the installation position of the vehicle distance detector according to an embodiment of the present application.

[0026] FIG3 is a schematic diagram of a display device according to an embodiment of the present application.

[0027] FIG4 is a schematic block diagram of a vehicle rear-end collision prevention warning system according to an embodiment of the present application. DETAILED DESCRIPTION

[0028] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of devices consistent with certain aspects of the present application, as detailed in the appended claims.

[0029] The terms used in the embodiments of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. Unless otherwise defined, technical or scientific terms used in the embodiments of this application should have the ordinary meaning understood by a person of ordinary skill in the art to which this application belongs. The terms "first," "second," and similar terms used in this specification and claims do not denote any order, quantity, or importance, but are simply used to distinguish different components. Similarly, terms such as "a" or "an" do not denote a limitation on quantity, but rather indicate the presence of at least one. "Multiple" or "several" means two or more. Unless otherwise indicated, terms such as "front," "rear," "lower," and / or "upper" are for convenience only and are not intended to limit to a single position or spatial orientation. Terms such as "include" or "comprising" mean that the elements or objects listed before "include" or "comprising" include the elements or objects listed after "include" or "comprising" and their equivalents, and do not exclude other elements or objects. Terms such as "connected" or "connected" are not limited to physical or mechanical connections and can include electrical connections, whether direct or indirect. As used in this specification and the appended claims, the singular forms "a," "an," "said," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0030] When driving on the road, vehicles sometimes encounter heavy traffic. When following a vehicle, drivers often monitor the brake lights of the vehicle ahead to maintain a safe gap and decide whether to brake to avoid rear-end collisions. However, everyone's understanding of the safe gap and braking response varies. Some people overreact and brake quickly upon seeing the brake lights illuminate, while others, subjectively sensing a decrease in the distance, brake frequently. This can cause the driver of the following vehicle to become nervous, leading them to maintain a long safe gap, which in turn makes it easier for adjacent vehicles to cut in line. Furthermore, especially when encountering an emergency braking situation at highway speeds, the following vehicle may not have enough time to brake by the time they see the brake lights change color, potentially leading to a rear-end collision. Therefore, relying on the brake light color change of the preceding vehicle as a warning does not provide effective early warning to the following vehicle in practice.

[0031] The present application provides a method for preventing rear-end collisions. FIG1 discloses a flow chart of the method for preventing rear-end collisions according to an embodiment of the present application. As shown in FIG1 , the method for preventing rear-end collisions according to an embodiment of the present application may include steps S1 to S3.

[0032] In step S1, the actual speed of the current vehicle is obtained.

[0033] In step S2, the real-time distance between the current vehicle and the vehicle ahead of it that is adjacent to the current vehicle in the same lane is obtained.

[0034] As shown in FIG2 , in one embodiment, the real-time distance between the current vehicle and the vehicle in front of it can be obtained by a distance detector 102 installed in front of the current vehicle. The distance detector 102 can include, for example, a radar detector.

[0035] In step S3, based on the actual vehicle speed of the current vehicle and the real-time vehicle distance, the display device located at the rear of the current vehicle is controlled to perform corresponding dynamic prompt display to provide corresponding prompts to the rear vehicle.

[0036] In some embodiments, the vehicle rear-end collision prevention method of the present application may further include: presetting the vehicle speed to multiple gears; and setting a corresponding safety distance based on the vehicle speed in each gear. Thus, based on the pre-set safety distance, the safety distance corresponding to the current vehicle's actual speed may be determined as the real-time safety distance.

[0037] In this case, step S3 may include step S31. In step S31, the display device may be controlled to display different dynamic prompts according to the size of the real-time vehicle distance relative to the real-time safety distance (for example, the difference between the real-time vehicle distance and the real-time safety distance), thereby providing an early warning to the vehicle behind.

[0038] Figure 3 shows a schematic diagram of a display device 104 according to an embodiment of the present application. As shown in Figure 3, in some embodiments, the display device 104 installed at the rear of the vehicle may include multiple display lights, which may form a progress bar to indicate the level of warning.

[0039] Controlling the display device to perform different dynamic displays in step S31 may include step S311. In step S311, different numbers of display lights may be controlled to illuminate to dynamically display the relative magnitude of the real-time vehicle distance to the real-time safety distance (e.g., the difference between the real-time vehicle distance and the real-time safety distance). The smaller the real-time vehicle distance relative to the real-time safety distance, the closer the real-time vehicle distance is to the real-time safety distance, and the more display lights are controlled to illuminate, the greater the progress displayed on the progress bar.

[0040] In some embodiments, controlling the display device to perform different dynamic displays in step S31 may further include step S312. In step S312, the display light may be controlled to dynamically display different colors.

[0041] As shown in FIG3 , in some embodiments, the vehicle rear-end collision prevention prompt method of the present application may further include pre-dividing the entire progress bar into a first progress interval 1041, a second progress interval 1042, and a third progress interval 1043, in accordance with the relative size of the real-time vehicle distance to the real-time safety distance. The display lights in the first progress interval 1041, the second progress interval 1042, and the third progress interval 1043 display green, yellow, and red, respectively. In some embodiments, when the real-time vehicle distance is greater than or equal to a first multiple of the real-time safety distance, the progress on the progress bar is in the first progress interval 1041; when the real-time vehicle distance is less than the first multiple of the real-time safety distance and greater than or equal to a second multiple of the real-time safety distance, the progress on the progress bar is in the second progress interval 1042; and when the real-time vehicle distance is less than the second multiple of the real-time safety distance, the progress on the progress bar is in the third progress interval 1043. The first and second multiples of the real-time safety distance may be set based on driving habits, but the present application is not limited thereto. For example, the first multiple is 2 and the second multiple is 1.3. In other words, when the real-time vehicle distance is greater than or equal to twice the real-time safety distance, the progress on the progress bar is located in the first progress interval 1041; when the real-time vehicle distance is less than twice the real-time safety distance and greater than or equal to 1.3 times the real-time safety distance, the progress on the progress bar is located in the second progress interval 1042; when the real-time vehicle distance is less than 1.3 times the real-time safety distance, the progress on the progress bar is located in the third progress interval 1043.

[0042] In some embodiments, step S312 may further include steps S3121 to S3123. In step S3121, when the progress bar is in the first progress interval 1041, the indicator light in the first progress interval 1041 may be controlled to illuminate green to indicate to the vehicle behind that the current vehicle's real-time distance is safe. Furthermore, the real-time distance between the current vehicle and the vehicle ahead may be displayed in real time based on the number of green lights that illuminate.

[0043] In step S3122, when the progress bar reaches the second progress interval 1042, the progress bar is controlled to display a green light in the first progress interval 1041 and a yellow light in the second progress interval 1042. At this time, the display colors of the display lights on the progress bar include several green lights and at least one yellow light, respectively, to indicate to the following vehicle that the current vehicle's real-time distance may pose a safety hazard, thereby providing an early warning to the following vehicle, reminding the driver of the following vehicle to be vigilant and pay attention to safety. Furthermore, the number of yellow lights that illuminate can indicate the real-time distance between the current vehicle and the preceding vehicle in real time.

[0044] In step S3123, when the progress bar reaches the third progress interval 1043, the progress bar controls the display light in the first progress interval 1041 to display green and the display light in the second progress interval 1042 to display yellow. Furthermore, the display light in the third progress interval 1043 can be controlled to display red. In this case, the display colors of the display lights on the progress bar include a plurality of green lights, a plurality of yellow lights, and at least one red light, respectively, to warn the following vehicle that the current vehicle's real-time distance to the vehicle ahead poses a significant safety hazard. This can provide an early warning to the following vehicle even if the current vehicle has not yet braked. This allows the following vehicle to make an early judgment based on the number and / or color of the display lights on the progress bar and brake in advance, thereby avoiding rear-end collisions caused by the current vehicle's sudden braking, which prevents the following vehicle from braking in time. Furthermore, the number of red lights that illuminate can indicate the current vehicle's real-time distance to the vehicle ahead in real time. The greater the number of red lights that illuminate, the greater the risk, and the closer the real-time distance to the real-time safe distance.

[0045] In some embodiments, step S312 may further include step S3124. In step S3124, when the difference between the real-time vehicle distance and the real-time safety distance is less than or equal to a limit value, where the limit value may be a minimum tolerable difference between the real-time vehicle distance and the real-time safety distance, for example, the limit value may be 0 or a specific multiple of the real-time safety distance, and the present application is not limited thereto, or when the real-time vehicle distance is less than the real-time safety distance, all display lights on the progress bar may be controlled to light up and flash, so as to provide the maximum warning prompt to the vehicle behind.

[0046] The vehicle rear-end collision prevention prompt method of the present application can display the real-time distance change between the current vehicle and the vehicle in front of it that is adjacent to it in the same lane, and transmit the real-time distance to the vehicle in front to the rear vehicle in real time, giving the rear vehicle a corresponding reminder, so as to leave the driver of the rear vehicle with braking prediction time, thereby relieving driving tension and avoiding the occurrence of vehicle rear-end collision accidents.

[0047] The vehicle rear-end collision prevention prompt method of the present application can allow the rear vehicle to know the real-time distance between the current vehicle and the front vehicle in real time without changing the vehicle's brake lights and when the current vehicle is not braking, so that the rear vehicle can make a prediction in advance and avoid a rear-end collision caused by sudden braking of the current vehicle.

[0048] The present application also provides a vehicle rear-end collision prevention system. Figure 4 shows a schematic block diagram of a vehicle rear-end collision prevention system 100 according to one embodiment of the present application. As shown in Figure 4, the vehicle rear-end collision prevention system 100 according to one embodiment of the present application includes a vehicle speed acquisition device 101, a vehicle distance detector 102, a display device 104, and a control device 103. The vehicle speed acquisition device 101 can be used to obtain the actual speed of the current vehicle, wherein the vehicle speed acquisition device 101 can include, for example, a GPS speedometer.

[0049] The distance detector 102 can be used to obtain the real-time distance between the current vehicle and the vehicle ahead, which is adjacent to the vehicle in the same lane. The distance detector 102 may, for example, include a radar detector. The distance detector 102 is positioned in front of the current vehicle. As shown in FIG2 , the distance detector 102 may, for example, be positioned on the front windshield of the vehicle near the interior rearview mirror. It will be appreciated that the distance detector 102 of the present application is not limited to the location shown in FIG2 ; the distance detector 102 may also be positioned at other locations in front of the vehicle.

[0050] The display device 104 is located at the rear of the vehicle. As shown in FIG3 , the display device 104 can be located below the trunk lid of the vehicle. It is understood that the display device 104 of the present application is not limited to the location shown in FIG3 . The display device 104 can also be located at other locations at the rear of the vehicle that are easily visible to vehicles behind.

[0051] The control device 103 can control the display device 104 to display corresponding dynamic prompts based on the actual speed of the current vehicle and the real-time vehicle distance, so as to provide corresponding prompts to the vehicles behind.

[0052] In some embodiments, the control device 103 stores the safety distance corresponding to each speed gear. The control device 103 can control the display device 104 to display different dynamic prompts according to the size of the real-time vehicle distance relative to the real-time safety distance.

[0053] As shown in FIG4 , in some embodiments, the display device 104 provided at the rear of the vehicle may include a plurality of display lights arranged in a row, and the plurality of display lights form a progress bar for indicating the level of warning. The control device 103 may control different numbers of display lights to light up according to the size of the real-time vehicle distance relative to the real-time safety distance, so as to dynamically display the size of the real-time vehicle distance relative to the real-time safety distance. The smaller the real-time vehicle distance is relative to the real-time safety distance (or the closer the real-time vehicle distance is relative to the real-time safety distance), the more display lights the control device 103 controls to light up, and the greater the progress displayed on the progress bar.

[0054] In some embodiments, the control device 103 may also control the display light on the progress bar to dynamically display different colors.

[0055] For example, the entire progress bar can be pre-divided into a first progress interval 1041, a second progress interval 1042 and a third progress interval 1043 according to the size of the real-time vehicle distance relative to the real-time safety distance (for example, the difference between the real-time vehicle distance and the real-time safety distance), wherein the display lights in the first progress interval 1041, the second progress interval 1042 and the third progress interval 1043 respectively display green, yellow and red.

[0056] When the real-time vehicle distance is greater than or equal to the first multiple of the real-time safety distance, the progress on the progress bar is in the first progress interval 1041. For example, when the progress on the progress bar is in the first progress interval 1041, the control device 103 may control the display light in the first progress interval 1041 to illuminate green to inform the vehicle behind that the real-time vehicle distance is relatively safe. In addition, the distance between the current vehicle and the vehicle ahead may be indicated in real time based on the number of green lights that illuminate.

[0057] When the real-time vehicle distance is less than the first multiple of the real-time safety distance and greater than or equal to the second multiple of the real-time safety distance, the progress on the progress bar is in the second progress interval 1042. When the progress on the progress bar reaches the second progress interval 1042, the control device 103 controls the display lights of the progress bar in the first progress interval 1041 to display green, and can also control the display lights in the second progress interval 1042 to display yellow. In this case, the display colors of the display lights on the progress bar include several green lights and at least one yellow light, respectively, to warn the following vehicle that the current vehicle's real-time vehicle distance may pose a safety hazard, providing an early warning to the following vehicle, reminding the driver of the following vehicle to be vigilant and pay attention to safety. Furthermore, the number of yellow lights that illuminate can indicate the current vehicle's distance to the preceding vehicle in real time.

[0058] When the real-time vehicle distance is less than the second multiple of the real-time safety distance, the progress on the progress bar is in the third progress interval 1043. When the progress on the progress bar reaches the third progress interval 1043, the control device 103 controls the progress bar to display green lights in the first progress interval 1041 and yellow lights in the second progress interval 1042. Furthermore, the control device 103 controls the display lights in the third progress interval 1043 to display red. In this case, the display colors of the display lights on the progress bar include a plurality of green lights, a plurality of yellow lights, and at least one red light, to warn the following vehicle that the current vehicle's real-time vehicle distance poses a significant safety hazard. This can provide an early warning to the following vehicle even if the current vehicle has not yet braked, allowing the following vehicle to make an early assessment and brake in advance, thereby avoiding rear-end collisions caused by the current vehicle's sudden braking, which would otherwise prevent the following vehicle from braking in time. Furthermore, the number of red lights that illuminate indicates the real-time vehicle distance from the vehicle ahead. The greater the number of red lights that illuminate, the greater the risk, and the closer the current vehicle's real-time vehicle distance is to the real-time safety distance.

[0059] When the real-time vehicle distance is less than the real-time safety distance, the control device 103 can control all the display lights on the progress bar to light up and flash, so as to give the rear vehicle a maximum warning prompt.

[0060] The vehicle rear-end collision avoidance warning system 100 of the present application has substantially similar beneficial technical effects to the above-mentioned vehicle rear-end collision avoidance warning method, and therefore will not be described in detail here.

[0061] The present application also provides a vehicle, which includes the vehicle rear-end collision prevention warning system 100 as described in the above embodiments.

[0062] The above is a detailed introduction to the vehicle anti-rear-end collision prompt method, system and vehicle provided in the embodiment of the present application. This article uses specific examples to illustrate the vehicle anti-rear-end collision prompt method, system and vehicle in the embodiment of the present application. The description of the above embodiment is only used to help understand the core idea of ​​the present application and is not intended to limit the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the spirit and principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications should also fall within the scope of protection of the claims attached to the present application.

Claims

1. A vehicle rear-end collision prevention prompt method, comprising: Get the actual speed of the current vehicle; Obtaining a real-time vehicle distance between the current vehicle and a front vehicle adjacent to the current vehicle in the same lane; as well as Based on the actual vehicle speed of the current vehicle and the real-time vehicle distance, a display device located at the rear of the current vehicle is controlled to perform corresponding dynamic prompt display.

2. The method of claim 1, further comprising: Set the vehicle speed to multiple gears in advance; Set the corresponding safety distance according to the vehicle speed in each gear.

3. The method of claim 2, wherein: The controlling the display device located at the rear of the current vehicle to display a corresponding dynamic prompt based on the actual vehicle speed and the actual vehicle distance of the current vehicle includes: Determine a safety distance corresponding to the actual speed of the current vehicle as a real-time safety distance; According to the size of the real-time vehicle distance relative to the real-time safety distance, the display device is controlled to display different dynamic prompts.

4. The method of claim 3, wherein: The display device includes a plurality of display lights, and the plurality of display lights form a progress bar for indicating the level of warning. The controlling the display device to perform different dynamic prompt displays includes: Control different numbers of the display lights to light up to dynamically display the size of the real-time vehicle distance relative to the real-time safety distance, The closer the real-time vehicle distance is to the real-time safety distance, the more the display lights are controlled to light up.

5. The method of claim 4, wherein: The controlling the display device to display different dynamic prompts also includes: The display light is controlled to dynamically display different colors.

6. The method of claim 4, further comprising: The entire progress bar is pre-divided into a first progress interval, a second progress interval, and a third progress interval in sequence according to the size of the real-time vehicle distance relative to the real-time safety distance, wherein the display lights in the first progress interval, the second progress interval, and the third progress interval are respectively displayed in green, yellow, and red; When the real-time vehicle distance is greater than or equal to the first multiple of the real-time safety distance, the progress on the progress bar is in the first progress interval; The real-time vehicle distance is less than the first multiple of the real-time safety distance and greater than or equal to the real-time safety distance. When the distance is a second multiple of the distance between the progress bar and the progress bar, the progress on the progress bar is in the second progress interval; When the real-time vehicle distance is less than the second multiple of the real-time safety distance, the progress on the progress bar is located in the third progress interval.

7. The method according to claim 6, wherein: The controlling of the display light to display different dynamic prompts includes: When the progress on the progress bar is in the first progress interval, controlling the display light in the first progress interval to display green; When the progress on the progress bar reaches the second progress interval, controlling the display light in the second progress interval to display yellow; When the progress on the progress bar reaches the third progress interval, controlling the display light in the third progress interval to display red; and When the real-time vehicle distance is less than the real-time safety distance, all display lights constituting the progress bar are controlled to light up and flash.

8. A vehicle rear-end collision prevention warning system, comprising: A vehicle speed acquisition device, used to acquire the actual vehicle speed of the current vehicle; A vehicle distance detector is arranged in front of the current vehicle and is used to obtain a real-time vehicle distance between the current vehicle and a front vehicle adjacent to the current vehicle in the same lane; A display device, arranged at the rear of the current vehicle; as well as The control device is used to control the display device to display corresponding dynamic prompts based on the actual vehicle speed of the current vehicle and the real-time vehicle distance.

9. The system of claim 8, wherein: The control device stores the safety distance corresponding to the vehicle speed of each gear.

10. The system according to claim 9, wherein: The control device is used to determine the safety distance corresponding to the actual vehicle speed of the current vehicle as the real-time safety distance, and control the display device to display different dynamic prompts according to the size of the real-time vehicle distance relative to the real-time safety distance.

11. The system of claim 9, wherein: The display device includes a plurality of display lights, and the plurality of display lights form a progress bar for indicating the level of warning. The control device is used to control different numbers of the display lights to light up according to the size of the real-time vehicle distance relative to the real-time safety distance. The closer the real-time vehicle distance is to the real-time safety distance, the more the control device controls the display lights to light up.

12. The system of claim 11, wherein: The control device is also used to control the display light on the progress bar to dynamically display different colors.

13. The system of claim 11, wherein: The control device is also used for: The entire progress bar is pre-divided into a first progress interval, a second progress interval, and a third progress interval in sequence according to the size of the real-time vehicle distance relative to the real-time safety distance, wherein the display lights in the first progress interval, the second progress interval, and the third progress interval are respectively displayed in green, yellow, and red; When the real-time vehicle distance is greater than or equal to the first multiple of the real-time safety distance, the progress on the progress bar is in the first progress interval; When the real-time vehicle distance is less than the first multiple of the real-time safety distance and greater than or equal to the second multiple of the real-time safety distance, the progress on the progress bar is in the second progress interval; When the real-time vehicle distance is less than the second multiple of the real-time safety distance, the progress on the progress bar is located in the third progress interval.

14. The system of claim 13, wherein: The controlling the display device to display different dynamic prompts also includes: When the progress on the progress bar is in the first progress interval, controlling the display light in the first progress interval to display green; When the progress on the progress bar reaches the second progress interval, controlling the display light in the second progress interval to display yellow; When the progress on the progress bar reaches the third progress interval, controlling the display light in the third progress interval to display red; and When the real-time vehicle distance is less than the real-time safety distance, all display lights constituting the progress bar are controlled to light up and flash.

15. A vehicle, comprising the vehicle rear-end collision prevention warning system according to any one of claims 8 to 14.

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