TW201941994A - Vehicle side safety distance display system beneficial to quick and easy judgment in driving and capable of improving driving safety - Google Patents

Abstract

A vehicle side safety distance display system is disclosed, wherein an image capturing element is mounted on one side of a vehicle body to capture a live image, then, an image processing module performs distance mark image processing in variable expression mode according to preset conditions, finally, a display element which displays the live image with the virtual distance mark. With a simple system structure, the present invention provides a driver with an auxiliary system that can eliminate blind spots and easily and visually grasp the safety distance information in a low-cost and high-performance manner, which is beneficial to quick and easy judgment while driving, and helps to improve driving safety.

Description

Vehicle side safety distance display system

The invention relates to a blind zone display system for a vehicle, in particular to a vehicle-side safety distance display system capable of displaying the safety distance on the side of the vehicle and assisting the driver to easily judge the safety of the vehicle side.

With the popularization of personal transportation vehicles, in densely populated cities, road traffic is crowded, and locomotives, battery cars, or electric bicycles often shuttle in the wave of vehicles. Due to the great changes in knight mobility, for vehicle drivers, It is not easy to judge the distance and position of entering the knight from the rear-view mirror, it is easy to cause traffic jams and driving troubles, and it is easy to cause accidents because the blind spots hidden in the rear-view mirror field of vision are not detected in time; The body structure will block most of the driver's field of vision from the side and the rear. The visibility range of the rear view mirror is not only limited, but it is also unfavorable for the driver to judge the speed and distance of the car coming from behind. Turning or changing lanes under conditions may cause collisions with oncoming vehicles, or even cause accidents.

In recent years, the vehicle-mounted image processing technology has been continuously improved and has been widely used in mobile vehicles to assist drivers in observing visual blind spots that cannot be seen directly. However, most of the current vehicle monitoring systems on the market are on the side. Radar and ultrasonic waves are used at the sides and rear to display reminders or digital bands, so that the driver can be reminded to come to the car without paying attention. However, these systems need to be equipped with radars for inductive detection and complex calculations. Control box and other components, not Only the cost is relatively high, and it is more difficult to install and set up for different specifications of the car body, and it is difficult to form a wide and universal model in the industry. Furthermore, in the current various systems, there is no simple method to directly determine the distance to the car. Mode, so when the driver receives the warning, although he knows that there is an object in the blind spot, but he does not know the exact distance, it will inevitably take time to observe and judge, and he will not be able to react and dispose in time.

In view of this, how to save costs and achieve the best use efficiency is the direction that industry players are constantly working to improve.

The main purpose of the present invention is to provide a vehicle-side safety distance display system with a simple structure, which provides an application mode in which the driver directly knows the distance through simple image processing, which can improve driving safety and the ability of the driver to adapt quickly and react, and reduce It is cost-effective and simple to install, which is suitable to meet customized requirements.

In order to achieve the above-mentioned objects and effects, the technical means adopted by the present invention include: a camera unit, which is installed on the side of the vehicle body to capture real-time images of the rear side of the vehicle body; an image processing module, It is connected to the camera element to perform image processing on the real-time image. Among them, the image processing module has a built-in virtual distance marker. When performing image processing, the distance marker is combined with the real-time image to form A real-time image with a virtual distance marker, and the performance mode of the distance marker can be changed according to preset conditions; and a display element connected to the image processing module, at least for displaying the processed image by the image processing module. Instant image.

According to the above-mentioned system architecture, the operation of the image processing module is based on the driving signal when the vehicle body direction light is activated.

According to the above system architecture, the operation of the image processing module is further based on The driving signal when the direction light on the same side of the camera element is activated.

According to the above system architecture, the preset conditions under which the image processing module changes the distance mark expression mode include at least the vehicle speed conditions of the vehicle body.

According to the above system architecture, the image processing module is connected to a GPS unit, so as to receive the speed information provided by the GPS unit, and change the distance mark expression mode according to a preset speed condition.

According to the above system architecture, the distance marker includes a plurality of distance trajectories representing different distances.

According to the above system architecture, the changeable expression mode of the distance mark includes at least the color change of the distance track lines.

According to the above system architecture, the image processing module is further connected with an image comparison module. The image comparison module is used to compare the real-time image and provide a warning signal, and change the default condition of the distance mark expression mode. It also contains the warning signal.

According to the above system architecture, the image comparison module is further connected with a warning unit capable of emitting a warning sound or a warning light according to the warning signal.

In practical applications, the present invention can be directly combined with vehicle-mounted systems of various factories through a simple structure, forming a variety of feasible mechanisms, such as: integrating a camera unit and an image processing module in a photographing device, and then directly connecting the vehicle-mounted system Display unit; or let the image processing module be integrated in the display unit of the display unit and connected with the camera unit installed on the car body; or cooperate with the control device of the vehicle system to make the image processing module In the control device, a camera unit and a display unit are connected respectively. The distance mark in the image processing module is a fixed distance mark in the corresponding distance position in the image according to the body proportion, the predetermined viewing angle and the actual distance during the installation and setting. No complicated calculation design is required. It can be quickly and cost-effectively installed and customized according to demand.

The application of the invention can present the side-rear image on the on-board screen, improve the dead angle of sight in the side blind area, and completely achieve no blind area, so that the driver can more easily confirm the environmental conditions and directly visually judge the distance from the distance mark. Improve driving safety; at the same time, eliminate the fear of accidents caused by lane changes caused by the driver's failure to see the right rear vehicle, and the inability to see the distance to the right when stopping.

In addition, the present invention has the following features:

1. According to the scope of the blind zone of the rearview mirror, a suitable field of vision can be designed to eliminate the dead angle of the line of sight.

2. The real-time image display screen can be switched in accordance with the signal of the right turn signal of the whole vehicle. The timing of screen switching is accurate and smooth without delay.

3. Water droplets will remain on the window glass and rearview mirror glass on rainy days, which will result in poor visibility. The auxiliary image can better understand the driving position.

4. The system architecture and equipment are simple, there is no need to load too many sensors and control boxes, and no complicated calculation and interpretation warnings are needed, which can meet the requirements widely in a convenient and low-cost manner.

In order to obtain a more specific understanding of the above-mentioned objects, features, and functions of the present invention, the preferred embodiments of the present invention are described in conjunction with the drawings as follows:

10‧‧‧ camera yuan

20‧‧‧Image Processing Module

30‧‧‧display

40‧‧‧direction light module

50‧‧‧GPS unit

60‧‧‧Image comparison module

70‧‧‧Warning unit

V‧‧‧ body

S‧‧‧speed

L‧‧‧ distance marker

L1, L2, L3‧‧‧ distance track

FIG. 1 is a schematic diagram of a system architecture according to an embodiment of the present invention.

FIG. 2 is a schematic top view of a vehicle body environment according to an embodiment of the present invention.

3 to 7 are schematic diagrams of display screens when used in the embodiments of the present invention.

Please refer to FIG. 1. The basic composition of the vehicle-side safety distance display system of the present invention includes a display element 10, an image processing module 20, and a display element 30. The practical configuration can be combined with a directional light module as required. Group 40, a GPS unit 50, an image comparison module 60, and an alert unit 70.

Please also refer to FIG. 2 in which the camera unit 10 is installed on the side of the vehicle body V. In this embodiment, the position of the rear-view mirror on the right is used as an example (the position of the intersection of the dotted lines) for Capture a real-time image of a predetermined range (such as the range between two dashed lines) behind the V-side of the vehicle body.

The image processing module 20 can be configured according to the actual situation, such as a photography device incorporated in the camera unit 10, or a display device incorporated in the control device or the display unit 30 according to the in-vehicle system; the image processing module 20 A virtual distance marker L is built, which can be connected to the camera unit 10 to receive the real-time image and perform image processing, so that the distance marker L can be presented in the real-time image in a virtual manner to form a real-time image with a virtual distance marker. ; In practice, the distance marker L is an image element, which can be coordinated with reference to FIG. 3. This embodiment includes several distance locus lines L1, L2, and L3 to represent different distances in the live image. The image processing module The 20 series superimposes the distance mark L at a fixed position on the real-time image by superimposing the image, and finally forms a real-time image screen with a virtual distance mark as shown in FIG. 3.

The display unit 30 is connected to the image processing module 20 and used to receive the real-time image processed by the image processing module 20 and display it on the display screen.

The distance trajectories L1, L2, and L3 of the distance mark L are usually determined according to the proportion of the vehicle body. Of course, they can also be configured according to the needs and habits of the user. In the example, according to the proportion of the vehicle body, the distance from the trajectory line L1 is equivalent to a distance of 3 ~ 4m behind the vehicle body V, the distance from the trajectory line L2 is equivalent to a distance of 10 ~ 12m behind the vehicle body V, and the distance from the trajectory line L3 is equivalent to a vehicle The distance behind the body V is 20 ~ 24m. When reinstalling, draw a distance line at the corresponding distance in the actual environment, and then enter the distance processing line into the image processing module 20 according to this distance line. The distance trajectory lines L1, L2, and L3 after typing are It can be expressed as a scale of such distance in the real-time image (as shown in Figure 3), and when there is a car coming in the live image (as shown in Figures 6 and 7), the user passes the distance trajectory line L1, L2, L3 can directly know the distance between the coming car and itself, and immediately make appropriate treatment.

In this embodiment, the image processing module 20 is connected to the directional light module 40 of the vehicle body V, and is used to receive the driving signal when the directional light is activated to form a mode that runs synchronously with the directional light. In normal times, the image processing module 20 can not perform image processing, and the display element 30 displays a real-time image without a mark. When the driver wants to turn or change lanes to activate the direction indicator, the image processing module 20 receives the driving signal and runs synchronously. The distance marker L is integrated into the real-time image, and is appropriately presented according to a preset condition (the screen shown in FIG. 3). In a feasible embodiment, the image processing module 20 is generally capable of synchronizing the movement of the direction lights on the same side of the camera unit 10.

During driving, the higher the vehicle speed, the larger the safety distance must usually be maintained. Similarly, when changing lanes, the vehicle must also maintain a safe distance based on the vehicle speed and the rear side. In this embodiment, the image processing module 20 can The speed of the vehicle body V is used to adjust the expression mode of the distance mark L, so that the driver can intuitively see from the screen the safe distance that the current vehicle speed should pay special attention to. Among them, the image processing module 20 is connected to the power system or GPS unit 50 of the vehicle body V to obtain the vehicle speed information of the driving state of the vehicle body V, and to change each distance trajectory line L1 in the distance mark L according to the set vehicle speed conditions. , L2, L3 colors.

For example, as shown in Figs. 3 to 5, the usage scenarios at different vehicle speeds S are shown respectively. Among them, Fig. 3 shows a scenario with a lower vehicle speed S (25km / hr). The image processing module 20 judges according to the vehicle speed conditions. Lower color change conditions are not reached, so the three distance trajectory lines L1, L2, and L3 have not changed (the blank in the figure indicates safe green); Figure 4 shows the normal vehicle speed S (40km / hr). In the situation, the image processing module 20 changes the color of the near distance trajectory line L1 according to the speed of the vehicle (the single yellow line in the figure indicates the alert yellow), and the middle and far distance trajectory lines L2 and L3 are not made because the color change conditions are not reached. Figure 5 shows a scenario with a higher vehicle speed S (80km / hr). The image processing module 20 changes the color of the near and middle distance trajectory lines L1 and L2 depending on the speed of the vehicle. The discoloration condition is reached without change; by this, the driver can intuitively mark the distance L from the discoloration to know the safety distance at which the current speed S needs special attention, and can immediately take appropriate measures when it finds that the vehicle is coming within the safety distance.

Further, the vehicle-side safety distance display system in this embodiment can be further provided with an image comparison module 60 and a warning unit 70. The image comparison module 60 is connected to the image processing module 20 for acquiring image data and using Real-time image comparison, which is based on the comparison of the image in the real-time image corresponding to the area marked L position. The comparison of the image determines whether there is a car coming in the position area, and based on this, a warning signal is generated. The image processing module The group 20 and the warning unit 70 can respectively receive warning signals. The image processing module 20 can further use the warning signals to adopt independent judgment or comprehensive judgment with the speed signal as conditions for changing the color of the distance mark L. The warning unit 70 is Sound or light warning can be given to the driver based on the warning signal.

Please refer to Figures 6 and 7 for the use scenarios at different vehicle speeds S and oncoming distances respectively. Among them, Figure 6 shows the scenario of regular vehicle speed S (40km / hr). See the previous example for the color change of the distance trajectory line L1. The distance trajectory lines L2 and L3 remain unchanged. The image processing module 20 can comprehensively judge the vehicle speed signal based on the comparison result of the image comparison module 60. In this example, because the approaching vehicle has not reached the alert distance, the distance trajectory lines L1, L2, and L3 are not extra. Figure 7 shows the situation of higher vehicle speed S (80km / hr). See the previous example, the distance trajectory lines L1 and L2 change color, but the distance trajectory line L3 does not change. When the approaching vehicle approaches the warning distance (distance trajectory line L2 Position), the image processing module 20 can comprehensively judge the vehicle speed signal based on the comparison result of the image comparison module 60. In this example, the incoming vehicle is already in the alert distance, so the distance trajectory of the corresponding location is further The color of L2 changes (dangerous red is indicated by a two-way diagonal line in the figure), so that the driver can intuitively mark L from the discolored distance, and immediately know that the current safety distance from the coming workshop is insufficient, and it is not appropriate to perform a diversion.

As can be seen from the above, the vehicle-side safety distance display system of the present invention has a simple structure, convenient installation tools, and low cost. It also provides a simple and intuitive mode for judging the distance while removing blind spots, which can be widely applied to various types of cars and driver habits. To achieve the effect of improving driving safety. The above examples are only to illustrate the technical ideas and characteristics of the present invention, such as the judgment criteria and change position of the system operation, which can be determined according to practical needs. When not limited by the conditions of the embodiments, the protection scope should be described later. The scope of application for patents shall prevail, and all equal changes or modifications made according to the spirit of the present invention shall be covered by the technical idea of the present invention.

Claims (9)

A vehicle-side safety distance display system includes: a camera unit installed on a side of a vehicle body to capture a real-time image of the rear side of the vehicle body; an image processing module connected to the camera unit, It is used to perform image processing on the real-time image. Among them, the image processing module has a built-in virtual distance mark. When performing image processing, the distance mark is combined with the real-time image to form a real-time image with a virtual distance mark. And the expression mode of the distance marker can be changed according to preset conditions; and a display element connected to the image processing module, at least for displaying the real-time image processed by the image processing module. According to the vehicle-side safety distance display system described in item 1 of the scope of the patent application, the operation of the image processing module is based on the driving signal when the vehicle body's turn signal is activated. According to the vehicle-side safety distance display system described in item 2 of the scope of the patent application, the operation of the image processing module is further based on the driving signal when the direction lights on the same side of the camera element are activated. According to the vehicle-side safety distance display system described in item 1 of the scope of patent application, wherein the preset condition for changing the distance mark expression mode includes at least the vehicle speed condition. According to the vehicle-side safety distance display system described in item 4 of the scope of patent application, the image processing module is connected to a GPS unit capable of providing vehicle body speed information. The vehicle-side safety distance display system according to item 1 of the scope of the patent application, wherein the distance mark includes a plurality of distance trajectories representing different distances. The vehicle-side safety distance display system according to item 6 of the scope of the patent application, wherein the changeable expression mode of the distance mark includes at least the color change of the distance track lines. The vehicle-side safety distance display system according to item 4 of the scope of patent application, wherein the image The processing module is further connected with an image comparison module. The image comparison module is used to compare the real-time image and provide a warning signal, and the preset condition for changing the distance mark expression mode further includes the warning signal. According to the vehicle-side safety distance display system described in item 8 of the scope of the patent application, the image comparison module is further connected with a warning unit capable of emitting a warning sound or a warning light according to the warning signal.