LIDAR Runtime Analysis via Spatial Encoding
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Solution Overview
Problem
Conventional LIDAR devices using CCD sensors face limitations in depth resolution due to slow read-out speeds, making them unsuitable for high-resolution applications.
Innovation Solution
A LIDAR device with a receiving unit that employs a deflector to direct reflected beams onto specific sections of a detector, allowing for parallel processing and eliminating the need for rapid read-out by encoding runtime into detector location, utilizing conventional CCD sensors for high-resolution imaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional CCD sensors are used for detection, then cost-effectiveness and imaging capability are improved, but read-out speed is too slow to achieve high depth resolution
Solution Approach 1:
The patent transforms the runtime analysis from a temporal measurement problem into a spatial mapping problem. By using a deflecting element to scan reflected beams across different positions of the CCD sensor, the runtime information is encoded into the spatial position where the beam strikes the detector. This allows conventional CCD sensors to achieve high depth resolution without requiring fast read-out speeds, as the runtime is determined by position rather than by rapid sequential sampling.
Solution Approach 2:
The deflecting element performs preliminary spatial encoding of the runtime information before the detector reads out the signal. By directing reflected beams to specific positions on the CCD sensor based on their runtime, the system prepares the data in a spatially encoded format that can be read out at conventional speeds while still preserving high depth resolution information.
2Measurement precision
If individual sections of the detector are consecutively activated or beams are deflected at changing angles, then runtime analysis capability is improved, but device complexity increases
Solution Approach 1:
The patent introduces a deflecting element as an intermediary between the reflected beams and the detector. This intermediary component performs the function of directing beams to different detector positions based on their runtime, thereby simplifying the control requirements for the detector itself. The deflecting element handles the complex spatial encoding task, allowing the detector to operate in a simpler, more conventional manner while still achieving high-resolution runtime analysis.
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
Enables high-resolution depth measurement without the need for quick detector read-out, achieving efficient and cost-effective runtime analysis by transforming runtime analysis into image analysis, suitable for applications requiring high parallel processing.
Implementation Method 1
the deflector changes the degree of the deflection of the incoming beams along the surface of the detector at a constant speed
Data Source
AI summary
A LIDAR device for scanning a scanning area. The LIDAR device includes a transmitting unit for generating beams and for deflecting the beams along the scanning area, and a receiving unit including at least one detector for receiving reflected beams. Individual sections of the detector are consecutively activatable at defined intervals for the detection of the reflected beams, or the reflected beams being deflectable onto individual sections of the detector by a deflector at a changing deflection angle. A control unit and a receiving unit are also provided.