According to foreign media reports, many companies in Silicon Valley want to take a slice of the emerging market business of autonomous vehicles. Recently, a startup, Aeva, was born and occupied a large part of the New York Times. Its technological breakthrough is to create a single sensor that combines the functions of lidar and radar to determine the surrounding objects. Location and speed.
Most experts believe that autonomous vehicles are best equipped with three types of sensing devices: cameras, laser radar and radar, which need to integrate the functions of three types of sensing devices to build a comprehensive platform. The camera is designed to detect the shape of the target, but the device is unable to detect its distance and speed of movement. To this end, it is necessary to use a laser radar to measure the distance, and the radar can accurately estimate the speed of the target.
Of course, this argument is too simplistic. In automotive applications, radars have low resolution when measuring vehicle speed, while lidar provides 3D high-definition maps of the vehicle's surroundings.
The Aeva sensor is said to be designed to provide superior vehicle speed data. Current lidar sensors send separate pulses, while Aeva sensing devices send continuous wave of light, which reads more complex peripheral signal bounces, and the device captures sharp Higher images and the ability to track transmission speeds. Of course, the device combines the functions of both Lidar and radar, and has excellent performance in both deep exploration and rapid probing.
Compared to Lidar equipment, the device's continuous wave will provide greater detection range and higher resolution, and it will perform better when dealing with highly reflective targets such as climate change and bridge railings. It can also avoid interference from other optical sensors.
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