Distance Detection Device With Dual Optical Modules For Wide-Range Scanning

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Solution Overview

Problem

Current distance detection devices for mobile and non-mobile carriers lack efficient and wide-range scanning capabilities, particularly in complex environments, limiting their effectiveness in navigation and obstacle avoidance.

Innovation Solution

A distance detection device featuring a light source that emits pulse light beams and a scanning module with a first and second optical module, driven to project light beams in different directions, creating a strip-shaped scanning range for horizontal and vertical scanning, enabling wide-range detection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If a single optical module is used for scanning, then the device structure is simple, but the scanning range is limited

Engineering Contradiction:
Improvescanning rangeVSAvoidoptical module configuration
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The scanning system is divided into multiple independent optical modules (first optical module and second optical module), each capable of scanning in different directions. This segmentation allows the system to achieve a wider overall scanning range while maintaining manageable complexity through modular design.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent transitions from single-dimension scanning to two-dimension scanning by adding multiple optical modules positioned at different orientations. The first optical module scans in one direction while the second optical module scans in another direction, creating a strip-shaped scanning range that covers a broader area.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Area of stationary object

If multiple optical modules are added to expand scanning range, then the scanning coverage increases, but the device complexity increases

Engineering Contradiction:
Improvescanning coverageVSAvoidnumber of optical modules
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

Each optical module is designed to perform multiple functions: scanning in different directions, detecting targets at various angles, and contributing to the overall strip-shaped scanning pattern. This multi-functionality reduces the need for additional specialized components, thereby limiting the increase in device complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Area of stationary object

If optical modules are positioned to scan in different directions, then the scanning range expands to form a strip-shaped pattern, but the alignment precision requirements increase

Engineering Contradiction:
Improvestrip-shaped scanning rangeVSAvoidoptical module alignment
Core Design Contradiction:
Area of stationary objectVSManufacturing precision

Solution Approach 1:

The optical modules are designed with adjustable and repositionable characteristics, allowing for dynamic alignment during installation and maintenance. This dynamic capability enables precise positioning of each optical module to achieve the required strip-shaped scanning pattern while accommodating manufacturing tolerances.

Inventive Principle:
Principle #15Dynamics

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

The device effectively measures distance and orientation by scanning a wide strip-shaped range, enhancing navigation and obstacle detection capabilities in complex environments.

Implementation Method 1

a light source configured to emit pulse light beams sequentially

Methodology Applied
Scientific EffectTime of flight: Time of Flight

Data Source

PatentUS12196855B2Distance detection device
Publication Date: 2025.01.14 SZ DJI TECH CO LTD
  • US12196855B2 patent drawing
  • US12196855B2 patent drawing
  • US12196855B2 patent drawing

AI summary

The present disclosure provides a distance detection device. The distance detection device includes a light source configured to emit pulse light beams sequentially; and a scanning module including a first optical module, a second optical module, and drivers. The first optical module and the second optical module are sequentially positioned on an optical path of the light beams emitted by the light source, the drivers drive the first optical module and the second optical module to move to sequentially project the light beams emitted by the light source to different directions and form a strip-shaped scanning range after being emitted from the scanning module.