Audio-based technique to sense and detect the road condition for autonomous driving vehicles
AssigneeBaidu USA LLC
InventorsWei Wang, Qi Luo, Kecheng Xu, Hongyi Sun, Reynolds Wesley, Youling Zou, Zejun Lin
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Abstract
Sound signals are received by one or more microphones disposed at an ADV. The sound signals are analyzed to extract a feature of a road on which the ADV is driving. A road condition of the road is determined based on the extracted feature. A path planning and speed planning is performed to generate a trajectory based on the road condition. The ADV is controlled to drive autonomously according to the generated trajectory.
Claims20
A computer-implemented method for operating an autonomous driving vehicle (ADV), the method comprising:
- receiving sound signals by one or more microphones disposed at the ADV;
- analyzing the sound signals to extract a feature representing a road on which the ADV is driving;
- determining a road condition of the road based on the extracted feature;
- performing a path planning and speed planning to generate a trajectory based on the road condition;
- and
- controlling the ADV to drive autonomously according to the generated trajectory.
A non-transitory machine-readable medium having instructions stored therein, which when executed by a processor, cause the processor to perform operations, the operations comprising:
- receiving sound signals by one or more microphones disposed at the ADV;
- analyzing the sound signals to extract a feature representing a road on which the ADV is driving;
- determining a road condition of the road based on the extracted feature;
- performing a path planning and speed planning to generate a trajectory based on the road condition;
- and
- controlling the ADV to drive autonomously according to the generated trajectory.
A data processing system, comprising:
- a processor;
- and
- a memory coupled to the processor to store instructions, which when executed by the processor, cause the processor to perform operations, the operations including receiving sound signals by one or more microphones disposed at the ADV;
- analyzing the sound signals to extract a feature representing a road on which the ADV is driving;
- determining a road condition of the road based on the extracted feature;
- performing a path planning and speed planning to generate a trajectory based on the road condition;
- and
- controlling the ADV to drive autonomously according to the generated trajectory.
Dependencies are inferred from the claim text.