Multi-Beam Wireless Power Steering for Safe Beam Intersections
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Solution Overview
Problem
Existing wireless power transmission systems face challenges in safely managing multiple collimated beams directed towards multiple targets, leading to increased hazards at beam intersection points due to potential exposure to higher power levels than designed safety limits, especially when beams cross or reflect within the same space.
Innovation Solution
The system employs beam steering modules and safety algorithms to detect and analyze beam intersections, calculate risks, and adjust beam power or direction to prevent hazardous conditions, using methods such as attenuating, turning off, or diverting beams to ensure safe operation, and combines power from multiple photovoltaic cells to provide a stable electrical output.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple beams are transmitted simultaneously to multiple targets, then power delivery capability and system productivity are improved, but safety hazards increase due to beam intersections creating exposure points with power levels exceeding designed safety limits
Solution Approach 1:
The system performs preliminary calculations to predict beam intersection points before beams are transmitted. The controller computes where multiple beams may cross based on their trajectories, and preemptively adjusts beam parameters or activates warning signals to prevent hazardous exposure conditions before they occur.
Solution Approach 2:
The system continuously monitors beam positions and trajectories, calculates intersection points in real-time, and provides feedback to the controller. Based on this feedback, the controller dynamically adjusts beam power levels, redirects beams, or activates warning signals to maintain safety while preserving power delivery capability.
2Use of energy by moving object
If beam power is increased to deliver more energy to targets, then energy transfer efficiency is improved, but the risk of hazardous exposure at intersection points increases
Solution Approach 1:
The system dynamically adjusts beam power levels based on real-time calculation of intersection points and potential exposure risks. Beam power is optimized to be as high as possible for efficient energy transfer, but is automatically reduced or redistributed when intersection hazards are detected, creating a dynamic balance between energy efficiency and safety.
Solution Approach 2:
The system changes beam parameters (power level, direction, timing) based on calculated intersection points. When hazardous intersections are predicted, the controller modifies one or more parameters such as reducing power at specific times, redirecting beams to alternative targets, or staggering beam activation to avoid simultaneous high-power intersections.
3Adaptability or versatility
If beam steering modules are used to direct beams to multiple targets, then system versatility and adaptability are improved, but device complexity increases
Solution Approach 1:
The beam steering modules serve multiple functions: they direct beams to different targets, adjust beam trajectories to avoid intersections, and enable the system to adapt to varying receiver positions and configurations. This multi-functionality reduces the need for separate safety systems and integrates safety control into the existing steering mechanism.
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 effectively mitigates the risks associated with multiple beam intersections by dynamically managing beam power and direction, ensuring safe operation and efficient energy transfer while maintaining system safety and functionality.
Implementation Method 1
The targets are generally photovoltaic cells for converting the optical power to electrical power
Data Source
AI summary
A system for transmitting wireless power from multiple sources to multiple receivers, in which the safety of the system is maintained in spite of the possibility that two beams may intersect in the transmission space, thereby generating power or power density levels which exceed those at which the safety mechanisms of the system were designed to operate. The paths of the beams are known from the transmission positions and directions, and from the positions and orientations of the receivers, as measured by positioning devices on them. When an intersection, or near intersection of beams is determined, the system is triggered to reduce the safety risk by attenuating or turning off, or by diverting, one or more of the beams. In addition, since a reflected beam's path may not be readily discernable, the system can ascertain if one of the beams has undergone a reflection, by looking for displayed mirror images.