Integrated Radar Sensor Spatial Modeling

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Solution Overview

Problem

Conventional laser scanning systems are costly, prone to errors, especially when in motion, and struggle with short-range distance measurements and object tracking due to high operational frequencies and precision requirements, while conventional radar systems lack the resolution for effective data point detection and spatial modeling.

Innovation Solution

A high-resolution integrated radar sensor operating within specific frequency bands and using advanced beam steering techniques to detect data points with high precision, capable of generating three-dimensional spatial models and tracking multiple objects with improved accuracy and cost-effectiveness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If laser scanning systems are used for high-precision spatial determination, then measurement precision is improved, but device cost increases significantly

Engineering Contradiction:

Improvespatial determination precisionVSAvoidsystem cost

Core Design Contradiction:

Measurement precisionVSEase of manufacture

Solution Approach 1:

The patent transitions from optical frequency parameters (laser) to radio frequency parameters (radar), fundamentally changing the operating frequency band while maintaining measurement precision through advanced signal processing and beam steering techniques

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent replaces the mechanical/optical laser scanning system with an electronic radar-based system using electromagnetic waves in radio frequency bands, eliminating the need for expensive laser components while achieving comparable or superior performance

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If conventional laser scanning systems are used for motion detection, then measurement capability is maintained, but reliability deteriorates due to motion susceptibility

Engineering Contradiction:

Improvemotion detection reliabilityVSAvoiddistance measurement accuracy

Core Design Contradiction:

ReliabilityVSMeasurement precision

Solution Approach 1:

The patent changes the operating frequency from optical to radio frequency bands, where radio waves are less susceptible to motion-induced errors and environmental interference, improving reliability in dynamic conditions

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The system employs feedback mechanisms through continuous radar scanning and real-time signal processing to compensate for motion effects and maintain accurate distance measurements during device movement

Inventive Principle:

Principle #23Feedback

3Ease of manufacture

If conventional radar systems are used for scanning, then device cost is reduced, but measurement precision deteriorates due to low resolution

Engineering Contradiction:

Improvesystem costVSAvoiddata point detection resolution

Core Design Contradiction:

Ease of manufactureVSMeasurement precision

Solution Approach 1:

The patent uses higher frequency radio bands (millimeter wave range) within the radar spectrum, which provides shorter wavelengths and consequently higher resolution capabilities while maintaining the cost advantages of radar technology

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The system employs dynamic beam steering techniques that electronically adjust the radar beam direction and focus in real-time, enhancing resolution and detection precision without mechanical moving parts or increased cost

Inventive Principle:

Principle #15Dynamics

4Speed

If laser systems operate at high frequencies for short-range detection, then speed of detection is improved, but measurement precision worsens due to time-of-flight ranging error

Engineering Contradiction:

Improvedetection speedVSAvoidshort-range distance accuracy

Core Design Contradiction:

SpeedVSMeasurement precision

Solution Approach 1:

The patent transitions to radio frequency operation where the wavelength is longer and the time-of-flight measurement is less susceptible to timing errors at short ranges, improving distance accuracy while maintaining fast detection speeds through electronic processing

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

The solution provides real-time, high-precision detection and tracking of objects with improved processing efficiency compared to laser-based systems, enabling effective spatial modeling and data point detection across various ranges and applications with reduced costs.

Implementation Method 1

an integrated radar sensor is configured for detecting data points

Methodology Applied

Scientific EffectRadar: Radar

Implementation Method 2

detection of distance based on time of flight delay may be difficult to determine

Methodology Applied

Scientific EffectTime of flight: Time of Flight

Data Source

PatentEP3077847B1System and methods for data point detection and spatial modeling

Publication Date: 2023.01.04 TRIMBLE INC

Figure 1A~1B
Figure 2A~2B
Figure 3A~3C

AI summary

A device and methods are provided for detecting data points using an integrated radar sensor. In one embodiment, a method includes determining position of a device, detecting data points by an integrated radar sensor of the device, wherein the data points are determined for one or more points in space associated with one or more objects, and generating a spatial model of the one or more objects based on the detected data points. The device and methods may advantageously be employed for one or more of mapping, modeling, planning, machine control, navigation and object tracking.