Anti-collision rear-end collision display device

Abstract

The utility model relates to the technical field of vehicle safety, and discloses an anti-collision rear-end collision display device which comprises a distance measuring unit and a display unit. The distance measuring unit comprises a distance measuring instrument; the distance measuring unit is electrically connected with the display unit; the range finder is arranged at a first position at the tail of the target vehicle and is used for detecting the distance between the target vehicle and a rear vehicle; the display area of the display unit is located at a second position on the rear windshield of the target vehicle, and when the distance between the target vehicle and the rear vehicle is within the designated range, corresponding prompt information is displayed on the display area. The device provided by the utility model can realize the functions of real-time detection of the following distance of the rear vehicle and display prompt.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle safety, and particularly relates to an anti-collision and rear-end collision display device. Background Art

[0002] With the continuous expansion of the household car market, the number of automobiles in possession has increased sharply, and traffic congestion has become a normal phenomenon. Due to the dense traffic flow, the driving space of drivers is limited, and the control of the vehicle distance has become a great challenge. The probability of rear-end collision accidents has increased significantly, bringing great pressure to road traffic safety.

[0003] In a complex traffic environment, it is often difficult for drivers to accurately judge the distance from the vehicle in front or behind, especially in poor visibility or emergency situations, and it is easy to cause rear-end collision accidents due to misjudgment. In related technologies, auxiliary systems such as reverse radars or reverse cameras equipped on vehicles mainly focus on detecting obstacles behind the vehicle, and there is a lack of a device that can detect the following distance of the vehicle behind in real time and give a warning. Summary of the Utility Model

[0004] In view of this, the utility model provides an anti-collision and rear-end collision display device, which can realize the function of real-time detection of the following distance of the vehicle behind and display prompt.

[0005] In a first aspect, the utility model provides an anti-collision and rear-end collision display device, which includes a ranging unit and a display unit; the ranging unit includes a rangefinder; the ranging unit is electrically connected to the display unit; the rangefinder is arranged at a first position at the rear of the target vehicle for detecting the vehicle distance from the vehicle behind; the display area of the display unit is located at a second position on the rear windshield of the target vehicle, and when the vehicle distance between the target vehicle and the vehicle behind is within a specified range, corresponding prompt information is displayed on the display area.

[0006] In an optional embodiment, the device further includes a data processing unit; the ranging unit is electrically connected to the display unit through the data processing unit; after receiving the distance information provided by the ranging unit, the data processing unit converts it into prompt information to be displayed on the display unit.

[0007] In an optional embodiment, the prompt information includes real-time distance information or collision warning information.

[0008] In an optional embodiment, the display unit further includes a projection unit; the projection unit is located at a third position of the target vehicle; the projection direction of the projection unit is directly opposite to the second position on the rear windshield of the target vehicle to display corresponding prompt information at the second position on the rear windshield of the vehicle.

[0009] In an optional embodiment, the display unit is a liquid crystal display device located at the second position on the rear windshield of the vehicle.

[0010] In an alternative embodiment, the ranging unit is also electrically connected to a horn unit in the target vehicle to sound a warning horn when the distance between the target vehicle and the vehicle behind is less than a threshold value.

[0011] The technical solution provided by this application may include the following beneficial effects:

[0012] An anti-collision and rear-end collision display device of this application includes a ranging unit and a display unit. The ranging unit includes a rangefinder for real-time detection of the distance from the vehicle behind. The display area of the display unit is located at a second position on the rear windshield of the vehicle, and this position enables the driver of the vehicle behind to see the prompt without affecting the line of sight of the driver of the vehicle itself. When the distance between the target vehicle and the vehicle behind is within a specified range, the display unit displays corresponding prompt information on the display area, which can timely correct driving errors and avoid rear-end collision accidents. The above solution can realize the function of real-time detection of the following distance of the vehicle behind and display prompt. Description of the Drawings

[0013] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0014] Figure 1 is a structural block diagram of an anti-collision and rear-end collision display device according to an embodiment of the present invention;

[0015] Figure 2 is a schematic diagram of information transmission of an anti-collision and rear-end collision display device according to an embodiment of the present invention. Detailed Embodiments

[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0017] In this embodiment, an anti-collision and rear-end collision display device is provided. Figure 1 is a structural block diagram of an anti-collision and rear-end collision display device according to an embodiment of the present invention, as Figure 1As shown in the figure, the device includes a ranging unit 101 and a display unit 102; the ranging unit includes a rangefinder; the ranging unit 101 is electrically connected to the display unit 102; the rangefinder is disposed at a first position at the rear of the target vehicle for detecting the distance from the vehicle behind; the display area of the display unit 102 is located at a second position on the rear windshield of the target vehicle, and when the distance between the target vehicle and the vehicle behind is within a specified range, a corresponding prompt message is displayed on the display area.

[0018] Optionally, the prompt message includes real-time distance information or collision warning information.

[0019] Optionally, the ranging unit 101 is also electrically connected to a horn unit 104 in the target vehicle to sound a warning horn when the distance between the target vehicle and the vehicle behind is less than a threshold value.

[0020] A rangefinder is an instrument capable of measuring distance, usually sensors such as radar, laser or ultrasonic, used to detect the distance between the target vehicle and the vehicle behind, that is, the following distance. The ranging unit includes a rangefinder. Installing the rangefinder at the first position at the rear of the vehicle is conducive to accurately measuring the distance of the vehicle behind. The display unit is used to display prompt messages, and its display area is installed on the rear windshield of the target vehicle so that the driver of the vehicle behind can see the prompt messages. The ranging unit (including the rangefinder) and the display unit achieve data transmission through electrical connection to ensure the real-time and accuracy of the ranging information. The prompt message is not limited to the real-time following distance information, but also includes collision warning and other information. The real-time distance information allows the driver to intuitively understand the distance from the vehicle behind, so as to make reasonable driving decisions. The collision warning information issues a warning when the distance is too close, reminding the driver to take emergency measures to avoid accidents.

[0021] Optionally, the anti-collision and rear-end collision display device also has an accident recording function, which can automatically record the accident process when a collision occurs, providing evidence for accident handling.

[0022] The horn unit emits a horn sound under certain conditions (the distance of the vehicle behind is less than the threshold value) to warn the vehicle behind, and combines with the display unit to achieve a double prompt effect of sound and light, further improving the warning effect. Optionally, the threshold value can be adjusted in real time. The setting of the threshold value is related to multiple factors, including:

[0023] (1) Target vehicle type and size: There are differences in the body length, width and height of different vehicle models, so the requirements for the safe following distance will also be different. Large vehicles (such as trucks and buses) usually have a longer body and larger blind spots, so the threshold value of their safe following distance is usually set farther than that of small vehicles.

[0024] (2) Environmental factors: Factors such as road type (e.g., highway, urban road, rural path), road surface conditions (e.g., dry, slippery, icy), and current air visibility will all affect the safe distance of vehicles.

[0025] (3) Vehicle speed: Vehicle speed affects the braking distance. The faster the vehicle speed, the longer the braking distance. Therefore, it is necessary to dynamically adjust the vehicle distance threshold according to the current speed of the vehicle to ensure sufficient time and distance for braking in case of an emergency.

[0026] Specifically, when the distance of the following vehicle is too close, the device will display the following vehicle distance information in real time and issue a warning signal when necessary to remind the driver to adjust the vehicle speed and distance in time, thus effectively avoiding the occurrence of rear-end accidents. For example, when the distance measuring instrument detects that the following vehicle distance is greater than 2m, the display area on the rear windshield will display "Please keep a safe following distance" to remind the following vehicle to drive in a standard manner; when the distance measuring instrument detects that the following vehicle distance is less than 2m, the display area on the rear windshield will display "The current vehicle distance is XXm" in real time to remind the following vehicle to prevent following too closely; when the distance measuring instrument detects that the following vehicle distance is less than 0.5m, the display area on the rear windshield will display "About to collide, please brake" and automatically sound the horn to remind the following vehicle; if a collision has occurred, it will display "Rear-ended, please get out of the car to handle" to remind the driver to handle the accident in time, and the device will record the collision process of the following vehicle in real time as a voucher for accident judgment.

[0027] In an alternative embodiment, the transmission of the distance information and the prompt information is as Figure 2 shown. The device further includes a data processing unit 103; the distance measuring unit 101 is electrically connected to the display unit 102 through the data processing unit 103; after receiving the distance information provided by the distance measuring unit 101, the data processing unit 103 converts it into prompt information for display on the display unit 102.

[0028] Specifically, the data processing unit receives the distance information provided by the distance measuring instrument, processes it and converts it into prompt information that can be displayed on the display unit, improving the readability and practicality of the information.

[0029] In an alternative embodiment, the display unit 102 further includes a projection unit 1021; the projection unit 1021 is located at the third position of the target vehicle; the projection direction of the projection unit 1021 is directly opposite to the second position on the rear windshield of the target vehicle to display the corresponding prompt information at the second position on the rear windshield of the vehicle.

[0030] Optionally, the display unit 102 is a liquid crystal display device located at the second position on the rear windshield of the vehicle.

[0031] The projection unit is a way of implementing the display unit, which displays the prompt information on the rear windshield of the vehicle through projection technology. The projection unit projects the prompt information directly onto the rear windshield of the vehicle, avoiding the need for additional installation of display devices. The liquid crystal display device is used as the display unit, which has higher clarity and stability and can better display the prompt information. By providing two display methods, namely the projection unit and the liquid crystal display device, it can be flexibly selected according to different vehicle models and requirements, improving the applicability of this anti-collision and rear-end collision display device in the face of different situations.

[0032] In summary, through the integration of the ranging unit and the display unit, the utility model can realize the function of real-time detection of the following distance of the vehicle behind and display prompts, effectively helping the driver of the vehicle behind to judge the following distance and avoiding the occurrence of rear-end collision and collision accidents.

Claims

1. An anti-collision and rear-end collision display device, characterized in that, The device includes a ranging unit and a display unit; The ranging unit includes a rangefinder; the ranging unit is electrically connected to the display unit; the rangefinder is disposed at a first position at the rear of the target vehicle for detecting the distance from the vehicle behind; The display area of the display unit is located at a second position on the rear windshield of the target vehicle, and when the distance between the target vehicle and the vehicle behind is within a specified range, corresponding prompt information is displayed in the display area.

2. The device according to claim 1, characterized in that, The device further includes a data processing unit; the ranging unit is electrically connected to the display unit through the data processing unit; after receiving the distance information provided by the ranging unit, the data processing unit converts it into prompt information for display on the display unit.

3. The device according to claim 2, characterized in that, The prompt information includes real-time distance information or collision warning information.

4. The device according to any one of claims 1 to 3, characterized in that, The display unit further includes a projection unit; the projection unit is located at a third position of the target vehicle; the projection direction of the projection unit is directly facing the second position on the rear windshield of the target vehicle to display corresponding prompt information at the second position on the rear windshield of the vehicle.

5. The device according to any one of claims 1 to 3, characterized in that The display unit is a liquid crystal display device located at the second position on the rear windshield of the vehicle.

6. The device according to any one of claims 1 to 3, characterized in that, The ranging unit is also electrically connected to the horn unit in the target vehicle to sound a warning horn when the distance between the target vehicle and the vehicle behind is less than a threshold.

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