With the development of science and technology, people’s travel has become increasingly convenient, and we are increasingly concerned about driving control requirements and travel safety. Traditional driving method still faces bad weather, night travel, complex road conditions, and the driver’s own condition that increase the travel risks. Therefore, intelligent driving technology based on the installation of various sensors to assist drivers in environmental perception and vehicle control has emerged. Compared with traditional driving, intelligent driving has a richer and more three-dimensional perception, all thanks to various sensors on the vehicle. Currently, commonly used sensors for intelligent driving include visible light cameras, multiple types of radars, and infrared cameras.
1. Visible light cameras
It is mainly used for lane detection, traffic sign recognition, pedestrian or vehicle recognition, etc. However, its resolution and information processing ability are limited, and it is also easily affected by environmental interference such as rain, snow, haze, glare, and darkness, and the recognition distance is limited.
2. Intelligent driving radars
Ultrasonic radar, based on the principles of ultrasonic ranging and positioning, is particularly suitable for parking scenarios and short distance sensing during driving. But it can only be applied to low-speed scenes and cannot distinguish the shape of objects.
Millimeter wave refers to electromagnetic waves that emit wavelengths between 1-10mm. Millimeter wave radar has a long detection distance, strong anti-interference ability, and is suitable for harsh weather, but cannot detect the shape of objects.
Lidar, known as the "eyes" of intelligent driving，has obvious advantages in 3D imaging, movement distance, and angle resolution, but its penetration performance still needs to be improved and the cost is also high.
3. Infrared thermal imaging
Unlike radar, infrared thermal imaging is a completely passive detection based on the radiation of objects themselves, fearless of haze, rain, snow, glare, and darkness, allowing drivers to clearly capture road condition information around the clock. Since it has an ability to perceive heat, infrared thermal imaging can detect the state of life inside and outside vehicles, greatly reducing the travel risks for drivers, passengers, and third parties.
As a rising star in the field of vehicle-mounted sensors, the automotive-grade infrared thermal imaging core components developed by GSTiR have been recognized by multiple mainstream manufacturers, and the related vehicle-mounted infrared thermal imaging vision systems have been mass-produced in the front and rear installation markets of multiple vehicle models.
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