CN110316130A - Vehicle side safe distance display system - Google Patents

Abstract

The invention discloses a vehicle side safety distance display system, which includes: a camera unit installed on one side of the vehicle body to capture real-time images of the side and rear of the vehicle body; an image processing module connected to the vehicle body. The camera unit is used to perform image processing on the real-time image. The image processing module has a built-in virtual distance mark. During image processing, the distance mark is combined with the real-time image to form a real-time image with a virtual distance mark. image, and can change the representation mode of the distance mark according to default conditions; and a display unit connected to the image processing module, at least used to display the real-time image processed by the image processing module. Through a simple system architecture, the present invention provides drivers with an auxiliary system that can eliminate blind spots and grasp safe distance information simply and intuitively in a low-cost and highly adaptable manner, which is conducive to easy and quick judgment when driving and helps improve driving. Safety.

Description

Vehicle side safety distance display system

technical field

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

Background technique

With the popularization of personal transportation vehicles, in densely populated cities, the road traffic is crowded, and locomotives, battery cars or electric bicycles often shuttle in the traffic of vehicles. Due to the great changes in the mobility of riders, for vehicle drivers, It is not easy to judge the distance and position of the intruding knight from the rearview mirror, and it is easy to cause traffic jams and driving troubles, and it is also easy to cause accidents because it is hidden in the blind spot of the rearview mirror and cannot be detected in time; moreover, due to The structure of the car body will block most of the driver's side and rear vision, and the visibility of the rearview mirror is not only limited, but also unfavorable for the driver to judge the speed and distance of the car coming from behind, which will inevitably lead to misjudgment. Steering or changing lanes under insufficient conditions may cause a collision with an oncoming vehicle or even cause an accident.

In recent years, vehicle-mounted image processing technology has been continuously improved, and it has been widely used in mobile vehicles to assist drivers to observe blind spots that cannot be directly seen; The side and rear adopt radar and ultrasonic methods, and display with prompt sound or digital band, so that the driver will not pay attention to the car coming from behind and give a reminder. However, these systems need to be equipped with radar for sensing and detection, and complex calculation and judgment. Components such as the control box are not only expensive, but also more difficult to install and set for different specifications of the car body, and it is difficult to form a wide and universal model in the industry. Moreover, the current various systems do not provide simple functions The mode of directly judging the distance of the approaching vehicle. Therefore, when the driver receives the warning, although he knows that there is an object approaching in the blind zone but does not know the exact distance, it will inevitably take time to observe and judge, and cannot react and deal with it in time.

In view of this, how to save costs and achieve the best use efficiency is the direction that the industry in this field is constantly striving to improve.

Contents of the invention

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 can directly know the distance through simple image processing, which can improve driving safety and the ability of the driver to quickly adapt and respond. The cost is reduced and the installation process is simple, which is suitable for meeting customized requirements.

In order to achieve the above-mentioned purpose and effect, the car side safety distance display system provided by the present invention includes: a camera unit, which is installed on the side of the car body, for capturing real-time images of the side and rear of the car body; an image processing module, It is connected to the camera unit for image processing of the real-time image, wherein a virtual distance mark is built in the image processing module, and the distance mark is combined with the real-time image during image processing to form a virtual distance mark. A marked real-time image, and the display mode of the distance mark can be changed according to default conditions; and a display unit, connected to the image processing module, at least used to display the real-time image processed by the image processing module.

According to the above system architecture, the operation of the image processing module is based on the driving signal when the turn signal of the vehicle body 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 unit is activated.

According to the above-mentioned system architecture, wherein the image processing module changes the default condition of the representation mode of the distance marker, at least including the vehicle speed condition of the vehicle body.

According to the above system architecture, the image processing module is connected with a GPS unit, so as to receive the vehicle speed information provided by the GPS unit, and change the display mode of the distance marker according to the default vehicle speed condition.

According to the above system architecture, the distance mark includes a plurality of distance track lines representing different distances.

According to the above system architecture, the changeable display mode of the distance mark at least includes the change of the color of each distance track line.

According to the above system architecture, the image processing module is further connected to an image comparison module, the image comparison module is used to compare the real-time image and provide a warning signal, and the default condition for changing the display mode of the distance marker includes the warning signal .

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

In practical applications, the present invention can be directly combined with the vehicle-mounted systems of various manufacturers through a simple structure, forming a variety of feasible mechanisms, such as: integrating the camera element and image processing module into a camera device, and then directly connecting the vehicle-mounted system or the image processing module is assembled in the display device of the display unit and connected to the camera unit installed on the vehicle body; or the image processing module is set in the control device in cooperation with the control device of the vehicle system , and connect the camera unit and the display unit respectively. The distance mark in the image processing module is to enter a fixed distance mark at the corresponding distance position in the image according to the proportion of the vehicle body, the predetermined viewing angle and the actual distance during installation and setting. It does not require complicated calculation design and can be completed quickly at low cost. installation and customization as required.

The application of the present invention can present the side and rear images on the vehicle screen, improve the dead angle of sight in the side blind area, and completely achieve no blind area, so that the driver can confirm the environmental conditions more conveniently, directly and visually judge the distance from the distance mark, and improve the Driving safety; at the same time, it also eliminates the hidden danger of traffic accidents caused by the driver changing lanes without seeing the vehicle behind the right, and the fear caused by the inability to see the distance to the right when parking.

In addition, the present invention still has the following characteristics:

According to the range of the blind area of the rearview mirror, a suitable field of view can be designed to eliminate the blind angle of sight;

It can switch the display screen of real-time images in conjunction with the switching signal of the right direction light of the vehicle, and the timing of screen switching is accurate, smooth and without delay;

Auxiliary rainy weather will have water droplets on the window glass and rearview mirror glass, resulting in poor vision. With the auxiliary image, you can better grasp the driving situation;

The system architecture and equipment are simple, and there is no need to load too many sensors, control boxes, and complex calculations to interpret and warn, and can widely meet the requirements in a convenient and low-cost way.

In order to obtain a more specific understanding of the above-mentioned purpose, features and functions of the present invention, preferred embodiments of the present invention are described below with accompanying drawings.

Description of drawings

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

Fig. 2 is a schematic top view of the car body environment according to the embodiment of the present invention.

FIG. 3 to FIG. 7 are schematic diagrams of display screens when the embodiment of the present invention is used.

Label description:

10 camera elements;

20 image processing module;

30 display elements;

40 Direction lamp module;

50 GPS units;

60 image comparison module;

70 Warning unit;

V body;

S vehicle speed;

L distance marker;

L1, L2, L3 Distance trajectory lines.

Detailed ways

Please refer to Fig. 1, the basic composition of the car side safety distance display system of the present invention includes a camera unit 10, an image processing module 20 and a display unit 30, and the practical configuration can be further combined with a direction light module 40, a GPS unit 50 , an image comparison module 60 and a warning unit 70 .

Please also refer to Fig. 2, where the camera unit 10 is installed on the side of the vehicle body V. In this embodiment, it is installed at the position of the rear-view mirror on the right side (the position of the dotted line intersection) as an example to capture The real-time image of the predetermined range (such as the range between the two dotted 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 photographic device incorporated into the camera unit 10, or a display device incorporated into the control device or the camera unit 30 according to the in-vehicle system; the image processing module 20 has a built-in The virtual distance mark L is mainly connected to the camera unit 10 to receive real-time images and perform image processing, so that the distance mark L can be presented in the real-time image in a virtual way to form a real-time image with a virtual distance mark; practical Above, the distance mark L is an image element, which can be referred to in Fig. 3. This embodiment includes several distance trajectory lines L1, L2, L3 to represent different distances in the real-time image. In a combined way, the distance marker L at a fixed position is superimposed on the real-time image, and finally a real-time image screen with virtual distance markers is formed as shown in Figure 3.

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

For each distance track line L1, L2, L3 of the distance mark L, it is usually determined according to the proportion of the vehicle body, and of course it can also be configured according to the needs and habits of the user; in this embodiment, the distance track is based on the proportion of the vehicle body. Line L1 is equivalent to the distance of 3~4m behind the vehicle body V, distance trajectory line L2 is equivalent to the distance of 10~12m behind the vehicle body V, distance trajectory line L3 is equivalent to the distance of 20~24m behind the vehicle body V, and then When installing, draw a distance line at the corresponding distance in the actual environment, and then input the distance line into the image processing module 20, and the input distance trajectory lines L1, L2, L3 can be expressed as the scale of these distances in the real-time image. (as shown in Figure 3), and when there is an oncoming vehicle in the real-time image (as shown in Figure 6 and 7), the user can directly know the distance between the oncoming vehicle and himself through the distance trajectory lines L1, L2, and L3 , and take appropriate action immediately.

In this embodiment, the image processing module 20 is connected to the directional light module 40 of the vehicle body V to receive the driving signal when the directional light is activated to form a synchronous operation mode with the directional light; The processing module 20 can not perform image processing, and the display unit 30 displays real-time images without markers. When the driver wants to turn or change lanes and activate the direction lights, the image processing module 20 receives the driving signal and runs synchronously, and combines the distance marker L with the In the real-time image, it will be properly presented according to the default conditions (the screen shown in Figure 3). In a feasible embodiment, the image processing module 20 can usually be synchronized with the action of the direction lights on the same side of the camera unit 10 .

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

As shown in Fig. 3 to Fig. 5, they respectively illustrate the usage scenarios at different vehicle speeds S; among them, Fig. 3 shows the scenario of a lower vehicle speed S (25 km/hr), and the image processing module 20 judges according to the vehicle speed conditions, because the vehicle speed is higher The color change condition is not met at the low level, so the three distance trajectories L1, L2, and L3 of near, middle, and far remain unchanged (the blank in the figure represents safe green); Fig. 4 shows the situation of normal vehicle speed S (40 km/hr) , the image processing module 20 changes the color of the short-distance trajectory line L1 according to the vehicle speed condition (in the figure, a single oblique line represents the warning yellow color), while the middle and long-distance trajectory lines L2 and L3 do not change because they do not meet the color-changing conditions. ; Fig. 5 shows the situation of relatively high vehicle speed S (80 km/hr), the image processing module 20 changes the color of the two distance trajectory lines L1 and L2 according to the vehicle speed condition, and the color of the long distance trajectory line L3 is changed due to the lack of reach. Therefore, the driver can intuitively understand the safety distance that needs special attention at the current speed S from the discolored distance mark L, and can take appropriate measures in real time when he finds that there is an approaching vehicle within the safety distance.

Further, in the car side safety distance display system of this embodiment, an image comparison module 60 and a warning unit 70 can be added. The image comparison module 60 is connected with the image processing module 20 to obtain image data and use real-time images to perform Comparison, which can be compared with the images corresponding to the location area of the distance mark L in the real-time image, and judge whether there is an incoming vehicle in the location area through image comparison, and make a warning signal accordingly. The image processing module 20 and the warning unit 70 can receive the warning signals separately, and the image processing module 20 can further use the warning signals to make an independent judgment or a comprehensive judgment with the vehicle speed signal as a condition for changing the color of the distance mark L, and the warning unit 70 can make a warning to the driver according to the warning signals. Sound or light warning.

Please refer to Figure 6 and Figure 7, which respectively illustrate the usage scenarios at different vehicle speeds S and different distances to vehicles; among them, Figure 6 shows the situation at a normal vehicle speed S (40 km/hr), see the color change of the distance trajectory line L1 in the previous example, However, the distance track lines L2 and L3 have not changed. When there is an approaching vehicle, the image processing module 20 can make a comprehensive judgment based on the comparison result of the image comparison module 60 based on the speed signal of the vehicle. No additional changes are made to the distance trajectory lines L1, L2, and L3; Fig. 7 shows the situation of a higher vehicle speed S (80 km/hr). The color of the distance trajectory lines L1 and L2 in the previous example is changed, while the distance trajectory line L3 is not changed. change, when the oncoming vehicle is close to the warning distance (the position from the trajectory line L2), the image processing module 20 can make a comprehensive judgment based on the comparison result of the image comparison module 60 based on the vehicle speed signal. In this example, the oncoming vehicle is already on warning. Therefore, the color of the distance trajectory line L2 at the corresponding position is further changed (the dangerous red is represented by a double slash in the figure), so that the driver can intuitively know the current and future distance from the discolored distance mark L. The safety distance in the workshop is not enough, so it is not suitable to divert the route.

It can be seen from the above that the car side safety distance display system of the present invention has a simple structure, convenient installation tools, and low cost. While eliminating blind spots, it provides a simple and intuitive mode for drivers to judge distances, and can be widely applied to various types of vehicles and drivers. 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. For example, the judgment criteria and changing positions of the system operation can be determined according to practical needs. When not limited by the conditions of the embodiments, the scope of protection should be based on the claims , All equivalent 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)

1. A car side safety distance display system, characterized in that it comprises: A camera unit, which is installed on the side of the car body, is used to capture the real-time image of the side and rear of the car body; An image processing module, which is connected to the camera unit and used for image processing of real-time images, wherein a virtual distance mark is built in the image processing module, and the distance mark is combined with the real-time image during image processing to form Live imagery with virtual distance markers and the ability to change the representation of the distance markers based on default conditions; and, A display unit, connected to the image processing module, at least used to display the real-time image processed by the image processing module. 2 . The vehicle side safety distance display system according to claim 1 , wherein the operation of the image processing module is based on the driving signal when the vehicle body turn signal is activated. 3 . 3 . The vehicle side safety distance display system according to claim 2 , wherein the operation of the image processing module is further based on the driving signal when the turn signal on the same side of the camera unit is activated. 4 . 4 . The vehicle side safety distance display system according to claim 1 , wherein the default condition for changing the display mode of the distance marker includes at least a vehicle speed condition. 5. The vehicle side safety distance display system according to claim 4, wherein the image processing module is connected to a GPS unit capable of providing vehicle speed information. 6 . The vehicle side safety distance display system according to claim 1 , wherein the distance marker includes a plurality of distance trajectory lines representing different distances. 7 . 7 . The vehicle side safety distance display system according to claim 6 , wherein the changeable display mode of the distance mark at least includes the change of the color of each distance track line. 8 . 8. The vehicle side safety distance display system according to claim 4, wherein 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 The default condition for changing the representation mode of the distance marker further includes the warning signal. 9 . The vehicle side safety distance display system according to claim 8 , wherein the image comparison module is further connected to a warning unit capable of emitting a warning sound or a warning light according to the warning signal.