Integrated Vehicle Sensor and Warning Module for Left-Behind Objects

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Solution Overview

Problem

Existing systems for recognizing left-behind objects in vehicles often suffer from separate arrangements of sensor devices and warning systems, leading to confusion and increased costs, especially in larger vehicles, as they require complex signal processing and additional installation space.

Innovation Solution

A compact component integrating a sensor device, control unit, and warning device, utilizing light-based detection and optical warning signals, which can be easily retrofitted and flexibly positioned within vehicles, reducing installation space and costs while providing accurate object detection and prevention of leaving objects behind.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If sensor device and warning device are arranged separately, then detection function is achieved, but device complexity and installation space increase

Engineering Contradiction:
Improveobject detection capabilityVSAvoidsystem structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the sensor device, control unit, and warning device into a single integrated component. The sensor device detects objects in the storage compartment, the control unit processes the sensor signals, and the warning device provides optical/acoustic alerts, all within one unified structure that can be retrofitted into vehicles without complex installation

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If sensor device and warning device are arranged separately, then detection function is achieved, but installation space and costs increase

Engineering Contradiction:
Improveobject detection capabilityVSAvoidinstallation space
Core Design Contradiction:
ReliabilityVSArea of stationary object

Solution Approach 1:

The patent combines the sensor device, control unit, and warning device into a single integrated component. The sensor device detects objects in the storage compartment, the control unit processes the sensor signals, and the warning device provides optical/acoustic alerts, all within one unified structure that can be retrofitted into vehicles without complex installation

Inventive Principle:
Principle #5Merging (Combining)

3Measurement precision

If complex signal processing methods are used to identify multiple left-behind objects, then object identification accuracy improves, but device complexity and costs increase

Engineering Contradiction:
Improveobject identification accuracyVSAvoidcontrol unit requirements
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent divides the storage compartment into multiple detection zones with multiple sensor devices. Each sensor device independently detects objects in its specific zone and generates corresponding sensor signals. The control unit processes these signals to identify the location and presence of left-behind objects, providing precise spatial information without requiring complex signal processing algorithms

Inventive Principle:
Principle #1Segmentation

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 integrated solution effectively notifies users of left-behind objects, reducing the risk of lost items and improving user experience, particularly in public transportation, by providing clear and efficient optical warnings, and can be easily adapted for various vehicle configurations.

Implementation Method 1

The sensor principle is preferably based on the detection of incident light

Methodology Applied
Scientific EffectLight-based detection: Photoelectric Effect

Implementation Method 2

light is emitted as the warning signal

Methodology Applied
Scientific EffectLight emission: Light Emitting Diode

Data Source

PatentUS11527144B2Recognizing left-behind objects in a transportation vehicle
Publication Date: 2022.12.13 FORD GLOBAL TECH LLC
  • US11527144B2 patent drawing
  • US11527144B2 patent drawing
  • US11527144B2 patent drawing

AI summary

Apparatus for recognizing left-behind objects 2 has a sensor device 3 designed to generate sensor signals 4 upon sensing a left-behind object 2, a control unit 5 designed to receive and process the sensor signals 4 and generate control signals 6 in reaction to the processed sensor signals 4, and a warning device 7, designed to receive the control signals 6 and output a warning signal 8 in reaction to the received control signals 6. A module arrangement 13 of individual component units having pairs of LED sensors and emitters may be arranged in a vehicle 14 to scan a storage region.