LiDAR Auto-Level Step Using Inertial Measurement Sensor
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Solution Overview
Problem
Users face difficulties in accurately configuring LiDAR devices, particularly in hard-to-reach locations, due to challenges in determining the six degrees of freedom, leading to inefficiencies in data accuracy and resource utilization.
Innovation Solution
Incorporating an inertial measurement sensor (IMS) in LiDAR devices to measure pitch and roll angles, allowing for easier configuration through a graphical user interface, where these angles are fixed, enabling users to specify other degrees of freedom with provided control elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a user manually configures all six degrees of freedom for a LiDAR device, then the positioning accuracy can be achieved, but the configuration time and computational resources increase significantly
Solution Approach 1:
The system performs preliminary automatic determination of pitch and roll angles using inertial measurement sensors during the installation phase. This preliminary action captures the device's orientation before the user needs to configure it, storing these values for later use in the configuration process, thereby saving time while maintaining accuracy
Solution Approach 2:
The LiDAR device automatically determines its own pitch and roll angles using built-in inertial measurement sensors. The device self-configures these two degrees of freedom without requiring external manual input, while still allowing users to manually configure the remaining degrees of freedom if needed
2Measurement precision
If a user manually configures all six degrees of freedom for a LiDAR device, then the positioning accuracy can be achieved, but the computational energy resources increase unnecessarily
Solution Approach 1:
The system extracts and automatically determines the pitch and roll angles using inertial measurement sensors, separating these two degrees of freedom from the manual configuration process. This extraction reduces the computational burden on the user while maintaining complete positioning accuracy, as only the remaining four degrees of freedom require user input
Solution Approach 2:
The LiDAR device automatically determines its own pitch and roll angles using built-in inertial measurement sensors. The device self-configures these two degrees of freedom without requiring external manual input, thereby reducing the computational energy resources that would otherwise be spent on manual configuration while maintaining complete positioning accuracy
3Adaptability or versatility
If a user configures a LiDAR device in a hard-to-reach area, then the device can be installed in optimal positions, but the difficulty of determining device location increases
Solution Approach 1:
The system replaces manual mechanical measurement of device orientation with automated inertial sensing. The inertial measurement sensors electronically determine pitch and roll angles without requiring physical access to the device or manual measurement tools, making it feasible to configure devices in hard-to-reach locations
Solution Approach 2:
The LiDAR device automatically determines its own orientation in hard-to-reach locations using built-in inertial measurement sensors. The device self-measures its pitch and roll angles without requiring a user to physically access or manually measure the device, thereby maintaining installation flexibility while eliminating the difficulty of location determination
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
This approach simplifies the configuration process, reducing time and energy consumption while enhancing data accuracy by determining critical angles using IMS measurements, facilitating precise representation of device positioning.
Implementation Method 1
performing by a computer system in communication with a first lidar device that includes a first inertial measurement sensor: receiving, from the first lidar device, a measurement of the first inertial measurement sensor; determining, using the measurement, at least one angle of a pitch angle or a roll angle of the first lidar device
Data Source
AI summary
Techniques (e.g., methods, systems, devices) for receiving, from the lidar device, a measurement of the inertial measurement sensor. The techniques further including determining, using the measurement, at least one angle of a pitch angle or a roll angle of the lidar device. The techniques further including fixing the at least one angle of the lidar device in a graphical user interface that displays a location of the lidar device and providing one or more control elements in the graphical user interface that enable a user to specify one or more other degrees of freedom of the lidar device.