Wireless Power Feeding for Continuous Multi-Machine Operation
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Solution Overview
Problem
Existing motorized working machines, such as lawn mowers and construction equipment, face delays in work due to frequent charging needs, and require adjustable power supply based on varying power requirements.
Innovation Solution
A work system comprising a power feeding device that wirelessly transmits power to a working area using multiple power transmission units, and working machines equipped with power reception units, allowing for autonomous operation and remote control, with adjustable power reception capability and regenerative power transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If working machines are charged at high frequency, then battery power is maintained, but work efficiency is reduced due to interruptions
Solution Approach 1:
The power feeding device performs preliminary action by wirelessly transmitting power to working machines before their batteries are completely depleted. The system proactively supplies power during operation or at charging positions, preventing battery exhaustion and the need for frequent charging interruptions that would reduce work efficiency.
2Duration of action of stationary object
If wireless power transmission is implemented, then power supply continuity is improved, but power transmission capability must be sufficient for various machine types
Solution Approach 1:
The power feeding device employs dynamic power transmission capability that can adjust to different power requirements. The system includes multiple power transmission units with varying capacities, and the control unit dynamically selects and activates appropriate transmission units based on the detected working machine type and its power consumption characteristics, enabling continuous power supply across diverse machine applications.
Solution Approach 2:
The power feeding device is designed with universal functionality to serve multiple types of working machines simultaneously. By incorporating multiple power transmission units with different power capacities and using intelligent detection and selection mechanisms, the system can adaptively provide appropriate power levels for various machine types, from low-power lawn mowers to high-power construction equipment, ensuring broad applicability and continuous operation.
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
Enables efficient power supply to diverse working machines, maintaining continuous operation and improving work efficiency by adjusting power transmission based on machine type and need, and facilitating remote operation.
Implementation Method 1
at least one first power transmission unit configured to wirelessly transmit power to a working area of the plurality of working machines
Implementation Method 2
each of the plurality of working machines includes a power reception unit configured to receive the power wirelessly transmitted to the working area
Data Source
AI summary
A work system includes a plurality of working machines each including a working unit; and a power feeding device configured to supply power to the plurality of working machines. The plurality of working machines includes a plurality of types of working machines different in amount of power required to drive the working unit. The power feeding device includes at least one first power transmission unit configured to wirelessly transmit power to a working area of the plurality of working machines. Each of the plurality of working machines includes a power reception unit configured to receive the power wirelessly transmitted to the working area.