A method, system, and medium for automatic power-on of electronic devices based on state machines.

CN121704672BActive Publication Date: 2026-07-03SHENZHEN JOYAR TECH (GRP) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHENZHEN JOYAR TECH (GRP) CO LTD
Filing Date
2025-12-19
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing technologies cannot reliably power on electronic devices automatically after a complete power outage. They suffer from high standby power consumption, reliance on RTC circuit failure, inaccurate power-on timing, and frequent false triggers, making it difficult to meet the needs of unattended operation and remote control.

Method used

By adopting a state machine-based approach and employing multi-level voltage threshold judgment and debouncing mechanisms, the power-up process is precisely monitored, generating a power-on pulse signal that meets the equipment requirements. Combined with feedback confirmation and timeout exception handling, the robustness of the power-on process is ensured.

Benefits of technology

It achieves accurate and reliable automatic power-on after a complete power outage, improving the reliability and environmental adaptability of the power-on process, reducing the risk of false triggering, and meeting the needs of unattended operation and remote control.

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Abstract

This invention provides a method, system, and medium for automatic power-on of electronic devices based on a state machine. By real-time monitoring of the main power supply voltage rising from zero, and sequentially comparing it with a first, second, and third voltage threshold, along with a debouncing mechanism and state machine switching logic, a compliant key pulse signal is automatically generated to trigger device power-on after the power supply stabilizes. This invention divides the entire power-on process into multiple state stages: hibernation, pre-preparation, ready, triggering, and completion. Utilizing a multi-level threshold comparison and stability verification mechanism, it ensures that the power supply voltage only generates the power-on command when it meets the device's normal operating requirements. This avoids the false triggering and startup failure problems caused by power fluctuations or interference in traditional solutions, significantly improving the reliability, environmental adaptability, and overall success rate of the automatic power-on process.
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