Radar Sensor Short Message Consolidation

Solution Overview

Problem

Conventional radar systems face challenges in efficient data transfer and reliable object detection due to the high volume of data generated by multiple sensor units, leading to increased power consumption, analog performance degradation, and higher costs.

Innovation Solution

Each sensor unit calculates a short message containing data for identifying potential objects and determining their probability of being real, which is then consolidated by an evaluation instance to produce a final detection result, reducing the data volume transferred and improving detection reliability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If complete detection results from all sensor units are transferred to the evaluation instance, then detection reliability is improved, but data transfer volume and power consumption increase

Engineering Contradiction:

Improvedetection reliabilityVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent extracts only the essential detection results (short messages containing object identification data and probability assessments) from the complete detection results of all sensor units, rather than transferring the entire data set. This extraction approach maintains detection reliability by preserving critical information while significantly reducing data transfer volume and power consumption.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent segments the detection data into two parts: complete detection results remain at sensor units for local processing, while only condensed short messages are transferred to the evaluation instance. This segmentation allows the system to maintain high detection reliability through comprehensive local analysis while minimizing data transmission requirements.

Inventive Principle:

Principle #1Segmentation

2Reliability

If complete detection results from all sensor units are transferred to the evaluation instance, then detection reliability is improved, but data transfer volume increases

Engineering Contradiction:

Improvedetection reliabilityVSAvoiddata transfer volume

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

The patent extracts only the essential detection results (short messages containing object identification data and probability assessments) from the complete detection results of all sensor units, rather than transferring the entire data set. This extraction approach maintains detection reliability by preserving critical information while significantly reducing data transfer volume.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent segments the detection data into two parts: complete detection results remain at sensor units for local processing, while only condensed short messages are transferred to the evaluation instance. This segmentation allows the system to maintain high detection reliability through comprehensive local analysis while minimizing data transmission requirements.

Inventive Principle:

Principle #1Segmentation

3Area of stationary object

If multiple sensor units with overlapping detection areas are used, then detection coverage is improved, but system complexity increases

Engineering Contradiction:

Improvedetection coverageVSAvoidsystem complexity

Core Design Contradiction:

Area of stationary objectVSDevice complexity

Solution Approach 1:

The patent segments the detection data into two parts: complete detection results remain at sensor units for local processing, while only condensed short messages are transferred to the evaluation instance. This segmentation allows the system to maintain high detection reliability through comprehensive local analysis while minimizing data transmission requirements.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces short messages as an intermediary data format between sensor units and the evaluation instance. These short messages serve as a mediator that condenses comprehensive detection information into a manageable format, enabling the system to handle multiple sensor units with overlapping detection areas without proportionally increasing complexity.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS20250147146A1Method for evaluating radar signals in a radar system including multiple sensor units

Publication Date: 2025.05.08 ROBERT BOSCH GMBH

AI summary

A method for evaluating radar signals in a radar system including multiple sensor units, which are each capable of detecting objects in the surroundings of the radar system, the detection areas of the sensor units at least overlapping one another. In the method, each sensor unit calculates a short message from the radar signals received by it, whose data volume is smaller than the complete detection result, but which at least contains data which allow for the identification of potential objects and for the determination of a probability that the potential object is a real object, and at least one evaluation instance receives the entirety of all short messages of all sensor units and, on the basis of these short messages and selected detection results of the sensor units, calculates a consolidated detection result.