CN104960474B - The implementation method of unshielding safe early warning display system based on automobile original vehicle system - Google Patents

Abstract

The invention discloses a non-shielding safety warning display system based on the original vehicle system of the automobile, including the original automobile warning display system composed of a data acquisition device, an automobile warning device and a display device. The decoder that the data output end of acquisition device is connected, the FPGA that is connected with the output end of this decoder, the encoder that is connected with the output end of this FPGA, and the memory that is connected on this FPGA; Said FPGA is also connected with described automobile The early warning device is connected, and the output end of the encoder is connected with the display device. The invention has ingenious design and simple structure, can obviously improve the safety warning display performance of the automobile, and has high practical value.

Description

Realization method of non-occlusion safety early warning display system based on automobile original vehicle system

technical field

The invention designs an automobile warning display system, in particular relates to a method for realizing a non-blocking safety warning display system based on the original automobile system.

Background technique

With the popularization of automobiles in Chinese society, consumers' requirements for automobiles are no longer limited to whether they own a car, but pay more attention to what kind of car they own. In terms of car performance, safety performance is the key for every car owner. Focus on primary performance. In order to widen the difference in model configuration, the safety system provided by the original car factory is too expensive, and its market share is only 3-5%, leaving a huge market space for later modified products.

At present, there are mainly two types of modification technologies for automobile safety performance on the market:

(1) Upgrade the original screen of the car, and display the additional alarm system on the original car screen. The additional alarm system and the original alarm system are displayed in a switching manner, that is to say, the content of the original car system is displayed at the same time. Either show the contents of the add-on. This method will interfere with the customer's use of the original car system, causing unnecessary safety and use hazards.

(2) Add a separate device for safety warning display. Although this method will not affect the display of the original car system, it will largely destroy the integrated design of the original car, giving the user a feeling of redundant equipment, which is not beautiful enough .

Contents of the invention

The purpose of the present invention is to provide a non-shielding safety early warning display system based on the original vehicle system of the automobile, which can solve the hidden dangers of automobile safety in the prior art, and improve the convenience of use and the reliability of safety.

In order to achieve the above object, the technical scheme adopted in the present invention is as follows:

The non-blocking safety warning display system based on the original vehicle system of the automobile includes the original automobile warning display system composed of a data acquisition device, an automobile early warning device and a display device, and also includes a decoder connected to the data output end of the data acquisition device , the FPGA connected with the output of the decoder, the encoder connected with the output of the FPGA, and the memory connected to the FPGA; the FPGA is also connected with the car warning device, the output of the encoder connected to the display device.

The present invention also provides a method for realizing the above-mentioned non-blocking safety warning display system based on the original vehicle system of the automobile, including the following steps:

(1) Preset the corresponding color according to the pixel level of the early warning display area, preset the corresponding fusion coefficient according to different display contents, and set corresponding signs for the areas that do not need early warning display;

(2) Real-time acquisition of environmental images during the use of the car through the data acquisition device, and transmission to the decoder for decoding;

(3) The FPGA performs fusion calculation processing on each frame of the environmental image acquired by the data acquisition device, and finally encodes it through the encoder to form an alarm image;

(4) The new environmental image is transmitted to the display device and the automobile early warning device respectively for display and early warning; at the same time, it is transmitted to the memory for data storage.

Preferably, the calculation logic of the R value of a pixel of the environment image in the step (3) is as follows:

i. a=0 when transparent;

R=Rx;

ii. When fully occluded, a=255;

R = Ry

iii. Translucent display

R＝Rx*(255-a)/255+Ry*a/255

Among them, R represents the most basic element of the graphic pixel color of the digital image, Rx represents the R value of the pixel in the image data of the original vehicle system, Ry represents the R value of the pixel in the alarm image data, and a represents the pixel in the alarm image data Point identity fusion attributes.

Compared with the prior art, the present invention has the following beneficial effects:

(1) The present invention utilizes the original data collection device of the automobile for data collection, and uses the original display device for image display, and utilizes the original early warning device for early warning prompts, without the need to separately increase the early warning display device, and does not need to display two It does not need to switch the early warning display system, and does not change the original overall design of the car. It only needs to perform data fusion processing on the collected data to make the early warning display content more accurate, which can significantly improve the safety performance of the car. The design is ingenious. The operation is simple and has obvious technical progress.

(2) The present invention has an obvious mark on the non-display area, realizes non-blocking display, integrates the original car style, and will not affect the owner's use of the original car system, thereby better ensuring the safety of the early warning system. work efficiently.

(3) The present invention does not require additional configuration of external equipment, does not increase the cost of automobiles, and has great potential for wide application.

Description of drawings

Fig. 1 is a system block diagram of the present invention.

Fig. 2 is a schematic flow chart of the present invention.

Detailed ways

The present invention will be further described below with reference to the accompanying drawings and examples, and the embodiments of the present invention include but not limited to the following examples.

Example

As shown in Figure 1, the non-occlusion safety warning display system disclosed by the present invention is based on the original warning display system of the car, and improves the safety warning performance of the car by using a data fusion algorithm to improve the data processing capability.

Specifically, the original car alarm display system includes a data acquisition device, a car early warning device and a display device. On this basis, newly increase the decoder that is connected with the data output end of described data acquisition device, the FPGA that is connected with the output end of this decoder, the encoder that is connected with the output end of this FPGA, and be connected on this FPGA of memory. In addition, the FPGA is also connected to the car warning device, and the output end of the encoder is connected to the display device.

At the same time, a corresponding implementation method is also configured, as shown in Figure 2, and the details are as follows:

(1) Preset the corresponding color according to the pixel level of the early warning display area, preset the corresponding fusion coefficient according to different display contents, and set corresponding signs for the areas that do not need early warning display.

a. Set the standards for displaying various colors, such as: the color RGB (8, 4, 8) is used as a transparent color, the transparency of RGB (127, 127, 127) is 75, and other colors are fully displayed;

b. Set the pixel color of the entire area of the alarm image to RGB (8, 4, 8), and the size of the area refers to the original image, such as: 800*480;

c. According to different alarm contents, refer to the display design method, and set the corresponding pixel points in the alarm image to the corresponding colors. For example: in the overspeed display, the alarm display board (size: 300*240, position: 500*120) part is transparency 75, the color value is RGB (127, 127, 127), other parts are displayed normally, no transparency, speed limit Red circle RGB (255, 0, 0) for the card, RGB (25, 255, 255) for white background, RGB (0, 0, 0) for black characters, and red RGB (255, 0, 0) for the current speed.

(2) Real-time acquisition of environmental images during the use of the car through the data acquisition device, and transmission to the decoder for decoding.

(3) The FPGA performs fusion calculation processing on each frame of the environmental image acquired by the data acquisition device, and finally encodes it through the encoder to form an alarm image. Taking the R value calculation of a pixel as an example, the calculation logic is as follows:

iv. When transparent, a=0;

R=Rx;

v. a=255 when fully occluded;

R = Ry

vi. Translucent display

R＝Rx*(255-a)/255+Ry*a/255

Among them, R represents the most basic element of the graphic pixel color of the digital image, Rx represents the R value of the pixel in the image data of the original vehicle system, Ry represents the R value of the pixel in the alarm image data, and a represents the pixel in the alarm image data Point identity fusion attributes.

(4) The new environmental image is transmitted to the display device and the automobile early warning device respectively for display and early warning; at the same time, it is transmitted to the memory for data storage.

Through the cooperation of the above-mentioned hardware and algorithms, the data processing capability can be effectively improved, and a completely unobstructed display can be realized, so that the early warning display capability of the car is significantly improved, and the safety, reliability and practical value of the car are significantly improved.

The above-described embodiments are only preferred embodiments of the present invention, and are not limitations on the scope of protection of the present invention. However, all changes made by adopting the design principle of the present invention and performing non-creative work on this basis should belong to the protection scope of the present invention. within.

Claims (1)

1. the implementation method of the unshielding safe early warning display system based on automobile original vehicle system, which is characterized in that including by The original-pack alarm display system of automobile that data acquisition device, automobile prior-warning device and display device are constituted further includes and the number According to the decoder that the data output end of harvester connects, the FPGA being connect with the output end of the decoder is defeated with the FPGA The encoder of outlet connection, and the memory that is connected on the FPGA；The FPGA is also connect with the automobile prior-warning device, The output end of the encoder is connect with the display device, and the implementation method includes the following steps：

(1) its corresponding color is preset according to the Pixel-level of early warning display area, it is default corresponding according to different display contents Fusion coefficients, and the corresponding mark of region setting shown to not needing early warning；

(2) environmental images during automobile use are acquired in real time by data acquisition device, and is transferred to decoder and is solved Code；

(3) each frame data for the environmental images that FPGA obtains data acquisition device carry out fusion operation processing respectively, finally It is encoded by encoder, forms a new environmental images；

The calculating logic of the R values of a pixel of new environmental images is as follows in the step (3)：

I. a=0 when transparent；

R=Rx；

A=255 when ii. blocking completely；

R=Ry

Iii. when translucent display

R=Rx* (255-a)/255+Ry*a/255

Wherein, R indicates that the most basic inscape of the graphical pixel color of digitized video, Rx indicate the image data of former vehicle system The R values of middle pixel, Ry indicate that the R values of pixel in alarm image data, a indicate the mark of pixel in alarm image data The attribute of fusion；(4) new environmental images are transferred to display device and automobile prior-warning device respectively, carry out display and early warning；Together When be transferred to memory carry out data storage.