Visual Locating Device Antenna Interference
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Solution Overview
Problem
Existing visual locating devices for motor vehicles face issues with electromagnetic interference, unstable connections, and fixed light signal characteristics that are not suitable in varying environmental conditions, particularly high brightness scenarios, and can interfere with the antenna's performance.
Innovation Solution
A visual locating device using LEDs powered by a driving circuit and a waveguide made of synthetic material, coupled to the antenna, with a control circuit that allows adjustable light emission modes, including color, frequency, number of flashes, and intensity, to enhance visibility in different environments, and is designed to be electromagnetically compatible and robust.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a normal incandescent light bulb is mounted in a socket housed inside the spherical body, then the light signal can be generated, but metal parts can magnetically interfere with the original structure of the antenna, deteriorating its performance
Solution Approach 1:
The patent extracts the metal socket and replaces it with a plastic socket, removing the harmful metal component that caused electromagnetic interference with the antenna while maintaining the light bulb mounting functionality
Solution Approach 2:
The patent introduces a plastic body as an intermediary material between the light source and the antenna, preventing direct magnetic interaction while still allowing the light signal to be transmitted through the transparent plastic material
2Ease of manufacture
If the connection between the transparent plastic body and the tip of the antenna is made simple, then the device is easier to manufacture, but the plastic body can come loose from the antenna due to vibrations and waving movement
Solution Approach 1:
The patent uses a spherical body shape that can be coupled with the antenna tip, providing natural geometric compatibility and stable connection through curved surfaces that distribute mechanical stresses
Solution Approach 2:
The patent incorporates preliminary positioning features and coupling mechanisms that ensure proper alignment and secure connection before the vehicle begins moving, preventing loosening during operation
3Device complexity
If the light signal characteristics are fixed, then the device structure is simpler, but the signal is not suitable in varying environmental conditions, particularly high brightness scenarios
Solution Approach 1:
The patent implements dynamic control of the light signal characteristics through a control unit that can adjust intensity, flash patterns, and duration based on environmental conditions, transforming the static light source into an adaptive signaling system
Solution Approach 2:
The patent changes the operational parameters of the light source (intensity, flash frequency, duration) based on environmental conditions, allowing the same hardware to perform optimally in varying lighting scenarios without structural modification
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 provides a visually effective and reliable light signal that adapts to environmental conditions, avoiding electromagnetic interference and ensuring the antenna's performance, while being simple, robust, and cost-effective.
Implementation Method 1
a waveguide (15) coupled to the antenna (5) to receive the optical signal generated by the LEDS (4-L), wherein the waveguide (15) is made of a synthetic material so that the optical signal generated by the LEDS (4-L) is fed to the inlet of the waveguide (15) and enables the illumination of at least part of the waveguide (15)
Data Source
Figure 1
Figure 2~3
AI summary
A visual locating device (1) for a motor vehicle (2), comprising a light signal generator (4) coupleable with an antenna (5) of the motor vehicle (2), and electronic control means (9) responsive to an activation/setting command to control the light signal generator (4) to cause emission of a light signal suitable to enable visually locating said motor vehicle (2). The electronic control means (S3) comprise user- controllable setting means (20) to set a light emission mode of the light signal generator (4).