Multi-Range Lidar Sensor with Dynamic Vertical Angle Switching

Solution Overview

Problem

Conventional systems require separate long and short distance lidar sensors, increasing complexity and cost due to the need for multiple sensors with different detection characteristics.

Innovation Solution

A multi-range detection lidar sensor with a single device capable of alternating between narrow and wide vertical angle ranges for long and short distance detection, using a laser projector, scanner, and controller to manage different detection modes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If separate long distance and short distance lidar sensors are used, then detection performance for different distances is improved, but device complexity and cost increase

Engineering Contradiction:

Improvedetection performanceVSAvoidsystem complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements a single lidar sensor that can operate in multiple detection modes by dynamically adjusting the vertical angle range of the laser scanner. The controller switches between a first vertical angle range for long distance detection and a second vertical angle range for short distance detection, allowing one device to perform functions that previously required two separate sensors. This multi-functionality approach maintains detection performance across different distances while reducing system complexity and cost.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent employs dynamic adjustment of the laser scanner's vertical angle range based on detection needs. The controller dynamically selects between different vertical angle ranges (first range for long distance, second range for short distance) depending on the operational requirements. This dynamic configuration allows the system to adapt its detection characteristics in real-time, resolving the contradiction between maintaining specialized detection performance and reducing overall system complexity.

Inventive Principle:

Principle #15Dynamics

2Reliability

If separate long distance and short distance lidar sensors are used, then detection performance for different distances is improved, but cost increases

Engineering Contradiction:

Improvedetection performanceVSAvoidmanufacturing cost

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent implements a single lidar sensor that can operate in multiple detection modes by dynamically adjusting the vertical angle range of the laser scanner. The controller switches between a first vertical angle range for long distance detection and a second vertical angle range for short distance detection, allowing one device to perform functions that previously required two separate sensors. This multi-functionality approach maintains detection performance across different distances while reducing system complexity and cost.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Length of stationary object

If a narrow vertical angle range is used, then long distance detection capability is improved, but short distance obstacle detection capability deteriorates

Engineering Contradiction:

Improvedetection distanceVSAvoiddetection range adaptability

Core Design Contradiction:

Length of stationary objectVSAdaptability or versatility

Solution Approach 1:

The patent employs dynamic adjustment of the laser scanner's vertical angle range based on detection needs. The controller dynamically selects between different vertical angle ranges (first range for long distance, second range for short distance) depending on the operational requirements. This dynamic configuration allows the system to adapt its detection characteristics in real-time, resolving the contradiction between maintaining specialized detection performance and reducing overall system complexity.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the operational parameters of the laser scanner by switching between different vertical angle ranges. The controller adjusts the scanning parameters dynamically - using a first vertical angle range for long distance detection and a second vertical angle range for short distance detection. This parameter change approach allows the system to optimize detection capability for different distance requirements without physical hardware changes.

Inventive Principle:

Principle #35Parameter changes

4Adaptability or versatility

If a wide vertical angle range is used, then short distance obstacle detection capability is improved, but long distance detection capability deteriorates

Engineering Contradiction:

Improvedetection range adaptabilityVSAvoiddetection distance

Core Design Contradiction:

Adaptability or versatilityVSLength of stationary object

Solution Approach 1:

The patent employs dynamic adjustment of the laser scanner's vertical angle range based on detection needs. The controller dynamically selects between different vertical angle ranges (first range for long distance, second range for short distance) depending on the operational requirements. This dynamic configuration allows the system to adapt its detection characteristics in real-time, resolving the contradiction between maintaining specialized detection performance and reducing overall system complexity.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the operational parameters of the laser scanner by switching between different vertical angle ranges. The controller adjusts the scanning parameters dynamically - using a first vertical angle range for long distance detection and a second vertical angle range for short distance detection. This parameter change approach allows the system to optimize detection capability for different distance requirements without physical hardware changes.

Inventive Principle:

Principle #35Parameter changes

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Reduces the need for multiple sensors, minimizing system complexity and cost while enabling flexible detection capabilities for various autonomous driving applications.

Implementation Method 1

a laser scanner for refracting the laser projected by the laser projector in any one angle range of a first vertical angle range and a second vertical angle range and scanning the laser

Methodology Applied

Scientific EffectRefraction: Refraction

Implementation Method 2

a receiver for receiving the laser projected by the laser projector and reflected by a target

Methodology Applied

Scientific EffectReflection: Reflection

Data Source

PatentUS20250327903A1Multi-range detection lidar sensor

Publication Date: 2025.10.23 HL KLEMOVE CORP

AI summary

Disclosed is a multi-range detection lidar sensor capable of detecting a plurality of detection regions using one lidar sensor. The multi-range detection lidar sensor includes a laser projector for projecting laser, a laser scanner for refracting the laser projected by the laser projector in any one angle range of a first vertical angle range and a second vertical angle range and scanning the laser, a receiver for receiving the laser projected by the laser projector and reflected by a target, and a controller for controlling the laser projector, the receiver, and the scanner.