Dynamic Overlap Control for Vehicle Sensor Data Volume

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Solution Overview

Problem

In vehicle-mounted measurement devices with multiple sensors, overlapping detection areas can exceed communication bandwidth and processing capacity, leading to reduced accuracy in diagnosis and calibration, while limiting overlap reduces accuracy further.

Innovation Solution

A vehicle-mounted measurement device unit with a data processing device that dynamically sets overlapping detection areas between sensors for measurement and non-measurement conditions, generating integrated data to manage data volume and improve accuracy.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If overlapping detection areas are increased to improve diagnosis and calibration accuracy, then measurement precision is improved, but communication bandwidth and processing capacity are exceeded

Engineering Contradiction:
Improvediagnosis and calibration accuracyVSAvoiddata volume
Core Design Contradiction:
Measurement precisionVSQuantity of substance

Solution Approach 1:

The patent segments the detection data by creating separate processing paths for overlapping and non-overlapping detection areas. The data processing device divides incoming detection data into first detection data from overlapping areas and second detection data from non-overlapping areas, allowing selective processing and transmission based on communication bandwidth availability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent dynamically changes the parameter of overlapping detection area based on communication conditions. The data processing device determines whether to increase or decrease the overlapping detection area according to communication bandwidth availability, transforming a static detection configuration into a dynamic one that adapts to changing communication constraints.

Inventive Principle:
Principle #35Parameter changes

2Quantity of substance

If overlapping detection areas are limited to reduce data volume, then communication bandwidth is preserved, but diagnosis and calibration accuracy deteriorate

Engineering Contradiction:
Improvedata volumeVSAvoiddiagnosis and calibration accuracy
Core Design Contradiction:
Quantity of substanceVSMeasurement precision

Solution Approach 1:

The patent implements dynamic adjustment of the overlapping detection area based on real-time communication conditions. The data processing device continuously monitors communication bandwidth availability and dynamically modifies the detection area configuration, transitioning between different operational states (increasing or decreasing overlap) to balance data volume requirements with diagnostic accuracy needs.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent applies partial action by selectively processing only certain detection data based on communication conditions. When bandwidth is limited, the device processes only essential second detection data from non-overlapping areas. When bandwidth is available, it additionally processes first detection data from overlapping areas, implementing a scalable processing approach that adapts to available resources.

Inventive Principle:
Principle #16Partial or excessive action

3Area of stationary object

If multiple detectors are used to cover all directions of the vehicle, then detection coverage is improved, but data transmission and processing complexity increases

Engineering Contradiction:
Improvedetection coverageVSAvoiddata processing complexity
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The patent segments detection data based on spatial overlap characteristics, dividing the data stream into manageable categories (overlapping vs. non-overlapping detection areas). This segmentation allows the system to handle multiple detector inputs systematically by processing different data types through appropriate pathways, reducing overall processing complexity despite increased detector count.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The data processing device performs multiple functions: it processes both overlapping and non-overlapping detection data, manages communication bandwidth allocation, and dynamically adjusts detection area configuration. This multi-functional approach consolidates what would otherwise require separate systems, managing the complexity introduced by multiple detectors through a unified processing architecture.

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

Data Source

PatentUS20220390606A1Vehicle-mounted measurement device unit and integrated data generation method in vehicle-mounted measurement device unit
Publication Date: 2022.12.08 DENSO CORP
  • US20220390606A1 patent drawing
  • US20220390606A1 patent drawing
  • US20220390606A1 patent drawing

AI summary

A vehicle-mounted measurement device unit includes a data processing device. The data processing device includes: a plurality of detector input units, each of which being connected to a corresponding one of a plurality of detectors having respective predetermined detection areas; an output unit configured to be connected to a vehicle control device arranged in a vehicle; an overlapping detection area setting unit configured to dynamically set an overlapping detection area between a plurality of arbitrary detectors among the plurality of detectors; and an integrated data generation unit configured to, in accordance with the set overlap detection area, generate integrated data using detection data corresponding to the detection areas input from the plurality of detectors via the plurality of detector input units and output the integrated data via the output unit.