Ranging Device Metal Mesh Heater Snow Removal
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Solution Overview
Problem
Existing ranging devices face performance reduction due to insufficient removal of snow and water droplets, which obstruct transmission and reflection waves.
Innovation Solution
A ranging device with a metal mesh heater is designed to cover at least a portion of the opening, generating heat to improve the removal of snow and water droplets, thus ensuring unobstructed passage of transmission and reflection waves.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an electric heating conductor is provided outside the transmission window, then the ranging device can remove snow and water droplets, but the heating coverage is insufficient and ranging performance deteriorates
Solution Approach 1:
The heating section is divided into multiple independent heating elements arranged in a matrix pattern, with each element covering a specific region of the transmission window. This segmentation ensures comprehensive heating coverage across the entire window surface, effectively removing snow and water droplets from all areas while maintaining ranging performance.
Solution Approach 2:
The heating section is positioned to cover at least a portion of the opening where the transmission window is located, providing localized heating precisely where snow and water droplet removal is most critical. This targeted approach ensures effective clearing of the transmission path without unnecessary heating of other components.
2Object-affected harmful factors
If the heating section covers at least a portion of the opening, then snow and water droplet removal is improved, but device complexity increases
Solution Approach 1:
The heating section serves multiple functions simultaneously: it acts as a heating element to remove snow and water droplets, while its mesh structure also functions as a support framework and allows transmission of electromagnetic waves. This multi-functionality reduces the need for additional separate components, thereby limiting the increase in device complexity.
Solution Approach 2:
The heating section employs a mesh structure with numerous small openings that allow electromagnetic waves to pass through while providing sufficient surface area for heating. This porous configuration enables the heating element to be transparent to the transmission waves, eliminating the need for separate wave-transparent materials and simplifying the overall structure.
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 enhances the ranging performance by effectively preventing wave obstruction and maintaining the integrity of wave transmission and reception.
Implementation Method 1
The heating section includes a mesh of metal having a plurality of mesh openings and is disposed to cover at least a portion of the opening. The heating section generates heat by energizing the metal to heat the transmissive section.
Data Source
AI summary
A ranging device includes a transmitting section, a receiving section, a housing, a transmissive section, and a heating section. The transmitting section transmits a transmission wave. The receiving section receives a reflection wave caused by reflection of the transmission wave from an object. The housing encloses the transmitting section and the receiving section and has an opening formed for allowing the transmission wave and the reflection wave to pass therethrough. The transmissive section is formed of a material transparent to the transmission wave and the reflection wave, and covers the opening. The heating section includes a mesh of metal having a plurality of mesh openings and is disposed to cover at least a portion of the opening. The heating section generates heat by energising the metal to heat the transmissive section.