Low illumination/dynamic range recognition power increase image sensor to improve car safety

Since Karl Benz first invented a real gasoline-powered car in 1885, automotive technology has made remarkable progress over the past century, such as anti-locking? Car system, power steering system, wiper, electronic stability control, navigation control, etc.

According to the latest research by JD Power and Associates, 38% of car buyers see new technology as the key to buying a new car. Another survey conducted by Deloitte ConsulTIng LLP in January 2014 showed that 61% of people born in the Y generation from 1982 to 2002 planned to buy high-tech cars. . Masa Hasegawa, head of Deloitte Management Consulting, said that while Generation Y may not necessarily look at key metrics such as horsepower, acceleration time or engine size, they have clear needs, needs and aspirations. In addition, Gen Y consumers also need safety technology, especially the ability to reduce the risk of distracted driving.

In recent years, consumers have become increasingly eager for advanced automotive technology. These cravings have been triggered by the increase in technology applications and have become a factor in the purchase of automobiles. This has actually inspired automakers to use technology to make Innovation in differentiation.

As consumers move to better interactive experiences and safe driving, the market demands that they use the same speed and innovation as smart phones to adapt to new technologies, which puts a lot of pressure on automakers, but they can also The car brand creates differentiation. Consumers want a better in-car experience/interactivity and expect the user interface to be more natural and intuitive.

Innovative technology and car safety upgrade

To achieve better safety features, consumers want to use safety automation to help them avoid or reduce any potential accidents. As automakers offer more in-car interactive features, they also need to develop technology to protect distracted drivers. Many times, the main cause of an accident is the driver's distraction, lack of concentration, and the driver's illusion or misjudgment of driving.

In general, innovative features are first introduced as options in high-end cars, and then eventually used in mainstream cars as costs fall, awareness increases, and demand grows. The core of automotive technology innovation is security, although some innovations are for convenience only.

Today, many active security systems cover a wide range of multidisciplinary areas and technologies, such as pedestrian detection cameras, distance measurement radars, path planning, and vehicle-to-vehicle wireless internet communications. Here are some of the key technologies currently being considered in the automotive market.

. Visual sensing technology

A rear view camera system that provides a view of the car while steering and reversing is now mainstream. By 2018, the United States intends to force automakers to install rear-view cameras in every new car. In response to this regulation, manufacturers began rolling out new cars equipped with rear-view camera systems in 2014.

The current new trend is the surround camera system, which uses four to five wide-angle cameras mounted on the front, rear and sides of the car to provide a 360-degree bird's eye view or front/rear split view, while some more advanced systems can even provide blind spots. Detection and parking assistance.

As early as 2005, night vision cameras were already deployed in Mercedes-Benz S-series cars. This technology is now also available in the E-series. Typically, night vision cameras use long-range light-emitting diode (LED) lights to make the distance in front of the car look farther. Current night vision cameras also add pedestrian detection to provide warning information to the driver with a heads-up display on the monitor or car windshield when a pedestrian or object approaches the vehicle.

Automatic high-beam control is a new technology that allows drivers to better see the road around the curve. According to the Highway Loss Data InsTItute survey, claims for property damage liability insurance fell by 10% after the use of automatic adjustment of the headlights (AdapTIve Headlights). In order to automatically adjust the headlights of the car, the camera is mounted on the rearview mirror, and when the car approaches the oncoming vehicle and the car overtakes in the same direction, it detects and turns off the high beam. It can switch between low beam and high beam, but it will gradually increase or decrease the light distribution according to the approach distance of the oncoming vehicle. In addition, it can dim the high beam when making a sharp turn. After the turn is completed, if there is no oncoming vehicle approaching, re-enable the high beam headlights.

Other innovative vehicle safety features include self-adjusting navigation controls, front body collision warning systems, automatic emergency braking, and pedestrian detection and lane departure warnings. These features use cameras or cameras plus radar/laser radar to monitor roads and dangerous conditions, and sometimes even assist drivers to automatically brake to avoid collisions. Therefore, the Autonomous Emergency Braking (AEB) system is becoming more and more popular in new cars.

Driver monitoring is the latest application in automotive technology to continuously assess the driver's ability to drive. The driver monitoring system uses a camera to detect a sleepy driver and issues a visual or audible warning when the driver is considered to be tired or not awake. Other factors that need to be considered in the driver monitoring system include speed, road conditions, acceleration and deceleration modes.

In the near future, it can be applied to vehicles and built on vision-based technologies, including gesture recognition for the human-car interface, rearview/side-view mirror replacement, and airbag configuration. In gesture control, the driver can connect to a infotainment center or console without touching any buttons or displays. These features are very useful, using a heads-up display to project a portion of the dashboard onto the windshield in front of the driver. In the case of a rear view mirror/side view mirror alternative, the camera can be used to instantly display the rear/side condition on the car display. As for the airbag configuration, the camera can detect the exact position of the driver behind the steering wheel. In the event of a collision, the airbag can be precisely configured to protect the driver's vital parts. A practical example of these new features is Chevrolet's 2015 Corvette, which comes with a camera for performance data loggers, mounted in the ceiling decoration from the driver's perspective, and recorded on the SD card for telemetry. Hardware and software to measure speed and G-force.

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