Overview: As AR HUD is getting more and more attention from the market, the overall industry is improving. Technically speaking, AR HUD is a new milestone in the development of HUD. Years of technology accumulation has brought a new experience in use; in terms of application, AR HUD is one of the important configurations that show the degree of intelligence of smart cars. The times make heroes, and the popularity of AR HUD is inevitable.
The head-up display HUD is an in-car equipment that displays key driving information such as vehicle speed on the front windshield, so that the driver can obtain relevant information without lowering his head. It appeared on some concept cars as early as the 1980s. Because the HUD technology originated from fighter jets and has its own technology aura, the appearance of the on-board HUD has surprised everyone.
The on-board HUD originated from the HUD on the fighter plane
With the development of HUD technology, the augmented reality AR HUD, which can combine virtual information with real road scenes with images, has also been used in Mercedes-Benz, Audi, Volkswagen, Great Wall, etc. Mass production of related models has been achieved, and the market has received a strong response.
According to the data from domestic research institutions, the number of domestic new car front-mounted standard HUDs from January to May this year was 414,500, a year-on-year increase of 118.96%, of which W-HUD accounted for 91.41 %. It is predicted that this year's AR-HUD load is expected to exceed 15,000. By 2023, the proportion of AR-HUD in the total HUD load has a chance to rise to 20%.
Why is AR HUD so popular? Let's briefly analyze it below.
A new stage of HUD development-ARHUD
The early HUD has a single color and a simple display interface, and the market has not been popular. Although follow-up with technological innovation, HUD display pictures and colors began to be rich, but the practicality is limited, only Mercedes-Benz, BMW, Audi and other luxury cars will be equipped.
until recent years,With the emergence of innovative optical technology AR (augmented reality), HUD manufacturers began to integrate AR technology to achieve the effect of combining the virtual image of HUD with the real road scene, greatly improving the sense of technology and practicality of HUD, and HUD began to be gradually adopted by the automotive industry. Pay attention. Until the new Mercedes-Benz S-Class (W223) announced the mass production of ARHUD, the HUD market was officially detonated.
With the introduction of AR technology, the practicality of HUD has improved and it has been recognized by consumers. Of course, it may also be the constant publicity in recent years that HUD has begun to be well-known. In any case, after the mass production of AR HUD, the market has risen rapidly.
AR HUD application advantages
AR HUD after mass production, why will the rapid growth of HUD? The editor believes that there are three points:
1. ARHUD augmented reality effects can better solve safety hazards
According to the general opinion of the industry, if AR HUD is commercially available, it needs at least 7.5 meters of virtual image distance (VID) ): When a person is driving, the point of view is a certain distance in front of the vehicle. If it is less than this distance, the driver's line of sight will still move.
The virtual image distance of the traditional W HUD is basically about 2.5m. It is necessary to adjust the line of sight to view the specific data on the HUD. There are still certain security risks. According to the assumption, the ultimate goal of HUD manufacturers is to achieve infinite results with the VID of AR HUD.
2. ARHUD brings innovative human-vehicle interaction HMI
With the rapid development of voice recognition, face recognition and other technologies, the way of human-vehicle interaction will continue to be upgraded. The traditional way of human-vehicle interaction is for the driver to input signals by clicking or sliding the central control and instrument screen. With the rapid development of the cockpit, emotional human-vehicle interaction through voice and gestures will become a new trend. In this context, AR-HUD, which used the windshield as the display interface, is expected to rely on a larger display size and a better immersive experience.Gradually replace the central control and instrumentation and become a new window for human-vehicle interaction.
AR HUD needs to integrate information obtained by vehicles such as cameras, millimeter wave radar, high-precision maps, and then implement arrow navigation and cartoon portrait guidance on the window to mark things (cars or people). Under the new way of human-vehicle interaction, AR-HUD is expected to become a new traffic portal for cars and reshape the smart cockpit hardware ecology.
3. AR HUD will become one of the important selling points of smart cars at this stage
What is the hottest thing in the automotive industry today? intelligent connected car . Since the second half of last year, the capital market has continued to increase the number of smart cars, and new and old car-making forces have seized the layout. Not only new forces such as Weilai , Ideal, and Xiaopeng , but traditional car companies such as Great Wall, SAIC Zhiji Auto, Beiqi Jihu, and Dongfeng Lantu are all vying to release their own intelligent models.
The cool display effect of AR HUD brings consumers an intuitive technological experience. The navigation, ADAS and other information are accurately combined in real-time traffic conditions, and information such as vehicle speed and rotation speed is projected on On the front windshield, combined with eye tracking , the pupil and gaze position are sensed in real time, providing the driver with more accurate positioning information. It can be said to be very compatible with the concept of smart cars, and it is also a major selling point of smart cars.
Smart cars are still in the early stages of development, and the overall cost of smart products is relatively high. Therefore, smart car brands are often positioned in the high-end field, with average selling prices above 300,000. Therefore, although the current AR HUD is not mature enough and the cost is high, smart cars are not too sensitive to this.
Summary
In short, it means that the accumulation of technology has brought excellent products.The integration with the right time node has promoted the explosive growth of AR HUD at this stage.
Although the industry is currently improving, there are still many problems that need to be broken through in the AR HUD itself, such as serious sunlight backflow caused by high magnification, excessive volume, and image distortion. Different HUD manufacturers will use years of research and development experience based on their own projection solutions to mitigate related adverse effects, and some manufacturers will try to adopt new technologies such as LCOS solutions and diffractive optical waveguides.
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