Intelligent Charging Device Load-Aware Scheduling Control
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Solution Overview
Problem
Conventional charging devices overload power distribution systems due to varying power utilization conditions across different charge zones, leading to inefficiencies and operational inconveniences, as they require manual settings to manage charging schedules.
Innovation Solution
An intelligent charging device with a control unit, power strips, and a display unit that acquires load signals, generates a charging demand sequence, and allocates charging time based on priority, ensuring that zones with higher demand are charged first, thereby preventing overloads and optimizing charging efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple digital devices are charged simultaneously in a teaching environment, then charging convenience is improved, but the power distribution system becomes overloaded
Solution Approach 1:
The charging device divides multiple power strips into different charge zones (first charge zone, second charge zone, etc.), allowing the system to segment the total power load into manageable portions. The control unit activates relays for specific zones based on power availability, preventing overall system overload while maintaining charging convenience for multiple devices.
2Reliability
If fixed charge time is allocated to each charge zone, then power distribution system overload is prevented, but charging efficiency decreases due to uniform time allocation regardless of actual power demand
Solution Approach 1:
The control unit dynamically adjusts the charge time for each power strip based on its actual power demand and the current power availability. Instead of fixed uniform time allocation, the system calculates and assigns different charge times to different power strips, optimizing charging efficiency while preventing power distribution system overload through real-time adaptive control.
3Adaptability or versatility
If manual setting of charge sequence and charge time is required, then charging schedule can be customized, but operational inconvenience increases for users
Solution Approach 1:
The control unit automatically detects the power demand of each power strip and autonomously determines the charging sequence and time allocation without requiring manual user input. The system serves itself by monitoring power conditions and making intelligent charging decisions, providing customization adaptability while eliminating operational inconvenience for users.
4Reliability
If charge zones are divided to avoid overload, then power distribution system stability is maintained, but charging time increases due to sequential charging of zones
Solution Approach 1:
The control unit performs preliminary assessment of power demand for each power strip before charging begins. Based on this advance knowledge, it optimizes the charging sequence and time allocation to minimize total charging time while ensuring that power distribution system stability is maintained through appropriate zone management and load control.
Data Source
AI summary
An intelligent charging device has a control unit and multiple power strips respectively connected to and simultaneously charging multiple sets of digital devices. Each power strip has a relay connected to the control unit. When acquiring load signals of the power strips and a maximum load threshold, the control unit performs a charging schedule configuration to generate a charging demand sequence, and then calculates a charging time for each charging schedule of a charging cycle according to the charging demand sequence and the load signals of the multiple power strips for charging time allocation and instructs each power strip to charge for a corresponding charging time in a corresponding charging schedule, thereby allowing the power strip with the maximum charging demand to charge first and achieving the goal of efficiency charging.