Distance Measuring Apparatus Partitioning Wall Shielding

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Solution Overview

Problem

Existing distance measuring apparatuses using electromagnetic waves are susceptible to electromagnetic noise due to the transceiver and processing unit being housed in the same chamber with a transmissive window, which can interfere with the control circuit's ability to accurately measure distances.

Innovation Solution

The apparatus is designed with a housing that includes a non-transmissive material for the main structure, a transmissive window for electromagnetic waves, and a partitioning wall that separates the transceiver and processing unit into different chambers, preventing electromagnetic noise from affecting the processing unit.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If the transceiver and processing unit are housed in the same chamber with a transmissive window, then the device structure is simplified, but electromagnetic noise interferes with the control circuit's ability to accurately measure distances

Engineering Contradiction:

Improvedevice structureVSAvoiddistance measurement accuracy

Core Design Contradiction:

Device complexityVSMeasurement precision

Solution Approach 1:

The housing is divided into a first container chamber for the transceiver and a second container chamber for the processing unit by a partitioning wall. This segmentation isolates the processing unit from electromagnetic noise generated by the transceiver, thereby improving distance measurement accuracy while maintaining a relatively simple overall device structure.

Inventive Principle:

Principle #1Segmentation

2Device complexity

If the transceiver and processing unit are housed in the same chamber, then the device structure is simplified, but electromagnetic noise is generated that affects measurement accuracy

Engineering Contradiction:

Improvedevice structureVSAvoidelectromagnetic noise

Core Design Contradiction:

Device complexityVSObject-generated harmful factors

Solution Approach 1:

The partitioning wall separates the transceiver and processing unit into different chambers, preventing electromagnetic noise generated by the transceiver from affecting the processing unit. This segmentation approach reduces harmful electromagnetic interference while keeping the device structure simple and integrated.

Inventive Principle:

Principle #1Segmentation

3Measurement precision

If the transceiver and processing unit are separated into different chambers, then electromagnetic noise is shielded, but the device structure becomes more complex

Engineering Contradiction:

Improvedistance measurement accuracyVSAvoiddevice structure

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The housing is segmented into two chambers by a partitioning wall, providing electromagnetic shielding for the processing unit. Despite this internal segmentation, the overall device structure remains relatively simple as the partitioning wall is an integrated component of the housing rather than an additional complex subsystem.

Inventive Principle:

Principle #1Segmentation

4Temperature

If the transceiver and processing unit are separated into different chambers, then heat dissipation performance is enhanced, but the device structure becomes more complex

Engineering Contradiction:

Improveheat dissipation performanceVSAvoiddevice structure

Core Design Contradiction:

TemperatureVSDevice complexity

Solution Approach 1:

The partitioning wall creates separate thermal zones for the transceiver and processing unit, allowing independent heat management for each component. This segmentation improves heat dissipation performance by preventing heat accumulation in the processing unit chamber, while the overall structure remains simple as the partitioning wall serves both electromagnetic shielding and thermal management functions.

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

This configuration effectively shields the processing unit from electromagnetic noise, improving the accuracy of distance measurements and enhancing heat dissipation performance compared to traditional designs.

Implementation Method 1

a partitioning wall made of a third material that is non-transmissive of the electromagnetic wave. The partitioning wall is configured to partition an inner chamber of the housing into a first container chamber in which a transceiver is installed, and a second container chamber

Methodology Applied

Scientific EffectElectromagnetic wave blocking: Absorption (EM radiation)

Implementation Method 2

a window portion made of a second material that is transmissive of the electromagnetic wave and reflection wave

Methodology Applied

Scientific EffectElectromagnetic wave transmission: Refraction

Data Source

PatentUS10613199B2Distance measuring apparatus

Publication Date: 2020.04.07 DENSO CORP

AI summary

In a distance measuring apparatus, a housing is made of a first material that is non-transmissive of an electromagnetic wave, and includes an inner chamber, and a window portion made of a second material that is transmissive of the electromagnetic wave and reflection wave. The housing includes a partitioning wall made of a third material that is non-transmissive of the electromagnetic wave. The partitioning wall is configured to partition the inner chamber of the housing into a first container chamber and a second container chamber. In the first container chamber, a transceiver is installed. The first container chamber communicates with the window portion. In the second container chamber, the processing unit is installed.