Vehicle Media Module With Rotating Reflector for Pedestrian Signaling
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Solution Overview
Problem
Existing vehicle lighting devices are limited in the types of signals they can transmit, often resulting in low visibility and difficulty in conveying clear and accurate signals, especially during the day due to high external illuminance, and existing sound systems do not effectively target pedestrians.
Innovation Solution
A media module with a rotatable module gear unit, reflection plate, light-emitting device, and speaker, which adjusts the angles of light and sound incidence to target pedestrians accurately using sensors and controllers, ensuring clear visual and auditory signals are directed towards them while minimizing pollution for others.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a common lighting device uses only turn-on and turn-off of LED to transmit signals, then the device structure is simple, but the type of signal that may be transmitted is limited and the clarity of the transmitted signal is poor
Solution Approach 1:
The patent applies dynamics by making the reflection plate rotatable to dynamically change the signal transmission direction. The module gear unit rotates the reflection plate according to the position of pedestrians, enabling the same lighting device to transmit signals in multiple directions and with varied patterns, thereby enriching signal types without complicating the overall device structure.
Solution Approach 2:
The patent introduces a new dimension by adding rotational movement to the reflection plate. Instead of only controlling signal transmission through on/off states (one dimension), the system now controls direction through rotation angles, adding a spatial dimension to signal transmission and enabling more diverse signal types.
2Ease of operation
If a common lighting device transmits signals only through turn-on and turn-off of LED, then the device is simple to operate, but visibility of the transmitted signal is low especially during the daytime with high external illuminance
Solution Approach 1:
The system dynamically adjusts the reflection plate angle to optimize signal visibility. By rotating the reflection plate toward pedestrians, the device concentrates light in the desired direction, enhancing signal visibility without requiring increased overall illumination intensity or complex operational procedures.
3Device complexity
If existing sound systems transmit sound in all directions, then the system structure is simple, but the sound cannot effectively target pedestrians
Solution Approach 1:
The patent applies dynamics to the sound transmission system by rotating the reflection plate to dynamically direct sound waves toward pedestrians. The module gear unit adjusts the reflection plate angle based on pedestrian position, enabling targeted sound transmission while maintaining a relatively simple system structure without requiring multiple speakers or complex acoustic arrays.
4Area of stationary object
If the media module transmits light and sound toward all directions, then the coverage area is maximized, but image pollution and noise pollution affect non-targeted individuals
Solution Approach 1:
The patent applies local quality by directing light and sound specifically toward the location of pedestrians rather than uniformly in all directions. The reflection plate rotates to concentrate signals in the local area where pedestrians are detected, providing targeted communication while minimizing pollution in other areas.
Solution Approach 2:
The system dynamically adjusts the signal direction to match pedestrian positions. The module gear unit continuously rotates the reflection plate to track and target pedestrians, enabling the coverage area to be dynamically concentrated on relevant targets rather than statically covering all directions, thereby reducing unnecessary pollution.
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 media module enables precise communication with pedestrians by adjusting light and sound directions, enhancing safety and stability by ensuring targeted signals are received without causing image or noise pollution to non-targeted individuals.
Implementation Method 1
a light-emitting device disposed to face a reflection surface of the reflection plate... light generated by the light-emitting device is incident toward the reflection plate
Implementation Method 2
light generated by the light-emitting device is incident toward the reflection plate... so that light incident toward a reflection plate is directed toward the pedestrian
Implementation Method 3
a speaker disposed to face the reflection surface of the reflection plate... a sound generated by the speaker is incident toward the reflection plate
Implementation Method 4
a sound generated by the speaker is incident toward the reflection plate... and sound incident toward the reflection plate is directed toward the pedestrian
Data Source
Figure 1
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AI summary
A media module may include a module gear unit rotatably installed in a vehicle body; a reflection plate connected to the module gear unit; a light-emitting device disposed to face a reflection surface of the reflection plate; and a speaker disposed to face the reflection surface of the reflection plate, wherein light generated by the light-emitting device is incident toward the reflection plate, and a sound generated by the speaker is incident toward the reflection plate.