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Automatic Driving Can Not Lack The Inertial Navigation System
Dec 17, 2018

Different sensors have their own advantages and disadvantages. When driving a car safely, it is necessary to ensure that multiple sensors work together and ensure redundant detection information. For autonomous vehicles with L4 and above, the POS system (Position Orientation System) with inertial guidance is essential.

Automatic driving can not lack the inertial navigation system

In the high-automatic driving system, the perception of road information will not only be simple and high-precision position, but also calculate road curvature, slope and heading information in real time, and provide it to the decision control system to adjust the power output in real time according to the driving state of the vehicle. Make sure the car runs smoothly.

In addition to the position and attitude of the vehicle, the inertial navigation system can also measure the vehicle coordinate system in real time and accurately (generally defined as the X axis on the right side of the vehicle, the Y axis on the front side, and the Z axis on the roof side). Acceleration, angular velocity and other information in the direction for the decision control system to accurately control the vehicle.

Therefore, it can be basically concluded that the self-driving car of L4 and above requires a positioning accuracy of 10-30 cm and fuses the POS with high-precision map information.

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