Moving Robot Light Device Location Detection Using Illuminance Changes
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Solution Overview
Problem
In low-light environments, moving robots face difficulties in determining their location and detecting objects, which hinders their ability to control and manage light devices effectively, leading to inefficient energy usage.
Innovation Solution
The moving robot employs image acquisition and control units to remotely control light devices by turning them on/off or flickering them, allowing it to determine their location through illuminance changes captured in images, and generates a light map to secure necessary illuminance and reduce unnecessary energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the moving robot uses image processing to determine location and detect objects, then positioning accuracy and object detection capability are improved, but in low-illuminance environments the system fails to function properly
Solution Approach 1:
The patent introduces light devices as intermediary elements to solve the low-illuminance problem. The robot controls light devices to emit light, creating artificial illumination that enables the image processing system to function. The light device acts as a mediator between the robot's control system and the environmental lighting condition, allowing the robot to actively manage illumination rather than passively relying on ambient light.
2Reliability
If the moving robot controls multiple light devices to ensure adequate illuminance, then location determination and object detection are improved, but energy consumption increases
Solution Approach 1:
The patent applies partial action by controlling only the necessary number of light devices based on current operational needs. The robot evaluates whether illumination is required and activates only sufficient light devices to achieve adequate illuminance for image processing, rather than activating all available light devices. This selective activation reduces energy consumption while maintaining reliable location determination and object detection.
Solution Approach 2:
The patent implements periodic action through flickering control of light devices. Instead of continuous illumination, the robot controls light devices to flicker at specific frequencies, enabling image processing systems to detect light sources and determine locations through temporal patterns. This periodic illumination reduces energy consumption compared to continuous operation while maintaining functional reliability.
3Difficulty of detecting and measuring
If the moving robot activates light devices to improve visibility, then location and object detection capabilities are enhanced, but unnecessary energy is consumed when illumination is not needed
Solution Approach 1:
The patent implements feedback mechanisms where the robot continuously monitors environmental illuminance levels and adjusts light device activation accordingly. The system evaluates current lighting conditions and determines whether additional illumination is necessary for effective image processing. This feedback loop prevents unnecessary energy consumption by activating light devices only when detection difficulty warrants additional illumination, rather than operating continuously or based on fixed schedules.
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 approach enables the robot to autonomously determine light device locations, secure necessary illuminance for navigation, and prevent unnecessary energy consumption by selectively turning on/off light devices.
Implementation Method 1
determines a location of the light device based on an illuminance change sensed in an image
Data Source
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AI summary
A moving robot is provided. A moving robot according to an embodiment of the present invention determines the location of a preset light device within a driving area and controls the light device based on the location. A moving robot according to an embodiment of the present invention includes a control unit controlling on/off of a light device through a communication unit and determining the location of a light device while moving a main body to a location where illuminance is changed based on an image obtained by an image acquisition unit.