LiDAR Scanning Order Adjustment for Interference Reduction

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Solution Overview

Problem

Existing LiDAR systems face significant interference issues when multiple LiDAR units operate in the same scanning mode, leading to insufficient anti-interference ability.

Innovation Solution

A radar control method that adjusts the scanning order and time intervals of LiDAR units after each frame of signal emission and reception, ensuring that the scanning order of subsequent frames differs from the previous ones, thereby reducing interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple LiDAR units operate in the same scanning mode, then the system achieves consistent and predictable scanning performance, but interference between LiDAR units increases and anti-interference ability deteriorates

Engineering Contradiction:

Improveanti-interference abilityVSAvoidinterference between LiDAR units

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent applies dynamics by making the scanning order variable and adjustable rather than fixed. The control device dynamically changes the scanning order of different LiDAR units based on preset strategies, allowing the system to adapt scanning patterns to reduce interference while maintaining operational reliability.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the scanning order parameter of LiDAR units to differentiate their scanning patterns. By adjusting this parameter, the system ensures that multiple LiDAR units do not scan along identical trajectories simultaneously, thereby reducing mutual interference while maintaining consistent scanning performance.

Inventive Principle:

Principle #35Parameter changes

2Reliability

If the scanning order of LiDAR is adjusted to reduce interference, then anti-interference ability improves, but system complexity increases

Engineering Contradiction:

Improveanti-interference abilityVSAvoidscanning order control complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements feedback mechanisms where the control device monitors the scanning states of multiple LiDAR units and adjusts their scanning orders accordingly. This feedback loop enables automatic interference reduction without requiring complex manual configuration, managing system complexity through intelligent control.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The control device automatically manages the scanning order allocation among LiDAR units based on preset rules and real-time system state, enabling the system to self-regulate interference levels without external intervention, thereby simplifying operational complexity while maintaining anti-interference capability.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS20250123370A1Radar control method, device, terminal equipment and storage medium

Publication Date: 2025.04.17 SUTENG INNOVATION TECHNOLOGY CO LTD

AI summary

The present application provides a radar control method, apparatus, terminal device and storage medium. The method includes: after completing an emission and reception of a frame of signals, adjusting a scanning order of a LiDAR, so that a scanning order of a current frame of the LiDAR is not all the same as a scanning order of a previous frame of signal; controlling the LiDAR to perform an operation of emission and reception on the next frame of signal according to the adjusted scanning order.