Smart Home Device Startup Sequencing for Surge Current Control
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Solution Overview
Problem
Smart home systems face electrical safety issues due to surge currents from multiple devices turning on simultaneously, potentially harming devices and cables, leading to safety risks.
Innovation Solution
A device control method that determines time intervals based on surge current parameters to stagger the startup of devices, reducing the superposition of surge currents and improving system safety by sending instructions to devices to turn on sequentially, with a server managing the timing to prevent excessive current thresholds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple smart home devices are turned on simultaneously to provide convenience and comfort, then the functionality and user experience are improved, but the surge current superposition causes harm to devices and cables
Solution Approach 1:
The system performs preliminary analysis of surge current parameters for each device before execution. The server determines time intervals based on surge current characteristics in advance, and prepares a staged startup plan that prevents harmful current superposition while maintaining device functionality.
Solution Approach 2:
The simultaneous startup of multiple devices is segmented into sequential startup stages. The server divides the device group into different startup batches based on surge current parameters, with each batch activated at a determined time interval, thereby avoiding current superposition while preserving overall system functionality.
2Productivity
If devices are turned on simultaneously to complete complex tasks collaboratively, then the productivity and task completion efficiency are improved, but the electrical safety is compromised due to surge current
Solution Approach 1:
The system dynamically adjusts the startup timing of each device based on real-time analysis of surge current parameters. The server determines optimal time intervals that adapt to the electrical characteristics of different devices, enabling safe sequential activation that maintains task completion efficiency while ensuring electrical safety.
Solution Approach 2:
The system uses surge current parameters as feedback to determine appropriate time intervals between device activations. By analyzing the electrical characteristics of each device and adjusting the startup schedule accordingly, the system achieves both task efficiency and electrical safety through iterative optimization.
3Reliability
If a time interval is introduced between device startups to reduce surge current harm, then the electrical safety is improved, but the time required for system activation increases
Solution Approach 1:
The system optimizes the time interval parameter by analyzing surge current characteristics of different devices. Rather than using a fixed delay, the server calculates dynamic time intervals based on electrical parameters, achieving the minimum necessary safety gap that reduces activation time loss while maintaining electrical safety.
Data Source
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AI summary
A device control method is disclosed. In the method, when a first device and a second device are required to perform actions, a first instruction is sent to the first device, and a second instruction is sent to the second device after a first time interval; and when the first device, the second device, and a third device are required to perform actions, the first instruction is sent to the first device, the second instruction is sent to the second device after the first time interval, and a third instruction is sent to the third device after a second time interval, where the second time interval is greater than the first time interval, so that the third device performs a third action after a delay. In this way, harm caused by a superposition of surge currents to devices and cables is reduced, and safety of a smart home system is improved.