There are two hot topics about LiDAR. One is a bombing news by Elon Musk from Tesla. In the sprawling ages of autonomous cars, AI controls the operation of cars, leading the AI boom in the market. However, there are two differences in the data of AI calculations. One is the dominant Tesla. Elon Musk has always been a proponent of stereo photography lenses, and believes that the lens is the only solution for self-driving cars. However, from the previous resolute opposition to LiDAR, Musk decided to embrace LiDAR instead.
LiDAR will lead the trend of 3D imaging. To this end, a LiDAR sensor has been added to the iPhone 12 Pro lens. Because of LiDAR, not only can you take a flat “photo”, but also sense the surrounding 3D stereo environment, turn the distance and depth of the objects in the picture into data, and quickly model the image to make the image three-dimensional, making it 360 Look around and use it.
In the application of self-driving cars, although the camera can clearly identify the size and color of the object, it is easily affected by light and weather. Although the radar can still operate normally at night, there are still many restrictions on the material. Simultaneously install a speed measuring radar or a communication antenna, the electromagnetic waves emitted by them are likely to cause misjudgments by the ranging radar;
In the opposite, because the laser light emitted by it has a shorter wavelength and more concentrated energy, it has a better resolution, can measure the distance with higher precision, identify the shape of an object, and can measure up to about 200 meters in depth. Distance, and can achieve centimeter-level measurement accuracy. In addition, because it is not affected by ambient light and brightness, it can sense the shape and distance of surrounding obstacles day and night, and create a 3D geographic information model around it.
There is no other reason, only it can quickly measure the distance, direction and speed of other vehicles or obstacles. Reduce the driver’s risk of injury.
In the future, self-driving cars require multiple sensors such as camera, radar, and LiDAR to complement each other. In the current development of self-driving, sensors such as millimeter wave radar, ultrasonic radar, and lens have indeed been widely used on car bodies. What are the advantages of LiDAR, and why has it become the top priority of the current self-driving car development?
Traditional Lidarin adopts mechanical rotation. Through the 360-degree rotating transmitter head, the faster and more accurate laser beam is changed from line to surface, and multiple laser beams are arranged in the vertical direction to form multiple surfaces. The purpose of dynamic 3D scanning and dynamic reception of messages, but both optical systems and mechanical rotation systems are expensive. In the early days, at least seven. Fifty thousand dollars, and the volume is huge, can only be installed on the roof of the car.
The IC design team is composed of a team of masters and doctors located in Silicon Valley and Taiwan. All have at least 15 years of design experience.
The OPA (Optical Phased Array) team is led by a PhD who has experience in developing physical objects.
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