Gateway Wake-Up Synchronization for Simultaneous Smart Device Control

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Solution Overview

Problem

In smart home networks, multiple single-live-wire devices controlled by a gateway device often experience poor user experience due to asynchronous signal scanning, leading to inconsistent response times when receiving control instructions, particularly when turning on or off multiple devices simultaneously.

Innovation Solution

A device control system synchronizes the signal scanning processes of multiple electronic devices by determining a target scanning period with a wake-up and sleep time, ensuring all devices are awake during instruction transmission, and adjusts power consumption by optimizing duty cycles to minimize energy waste.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by stationary object

If single-live-wire devices use intermittent wake-up and sleep manner to reduce power consumption, then power consumption is reduced, but devices cannot simultaneously receive control instructions resulting in poor user experience

Engineering Contradiction:
Improvepower consumptionVSAvoiduser experience
Core Design Contradiction:
Use of energy by stationary objectVSEase of operation

Solution Approach 1:

The patent implements periodic wake-up and sleep cycles for single-live-wire devices, where devices alternate between active scanning periods and dormant sleep periods. This periodic operation reduces average power consumption while ensuring devices are periodically available to receive control instructions, resolving the contradiction between energy savings and operational responsiveness.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The patent merges the operation timing of multiple single-live-wire devices by synchronizing their wake-up periods to a common time window. This allows the gateway device to send control instructions to multiple devices simultaneously during their coordinated wake-up phase, improving user experience while maintaining power-saving sleep modes for all devices.

Inventive Principle:
Principle #5Merging (Combining)

2Adaptability or versatility

If multiple single-live-wire devices operate independently with different scanning periods, then each device can optimize its own power consumption, but they cannot respond simultaneously to control instructions

Engineering Contradiction:
Improvedevice independenceVSAvoidresponse time consistency
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

Each device maintains its own periodic scanning rhythm optimized for its power consumption needs, while the gateway device coordinates instruction transmission to occur during the overlapping active periods of multiple devices. This preserves device independence and individual optimization while achieving simultaneous response capability.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The system implements feedback mechanisms where devices report their scanning status and the gateway device adjusts instruction timing based on this feedback. This allows the system to maintain device independence while coordinating responses to ensure simultaneous execution of control operations across multiple devices.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS20250280364A1Device Control System and Method, Device, Readable Storage Medium, and Chip
Publication Date: 2025.09.04 HUAWEI TECH CO LTD
  • US20250280364A1 patent drawing
  • US20250280364A1 patent drawing
  • US20250280364A1 patent drawing

AI summary

A gateway device connected to a plurality of electronic devices determines a target scanning period of the electronic devices, where the target scanning period includes a wake-up time and a sleep time. The gateway device synchronizes signal scanning processes of the electronic devices based on the target scanning period, and sends a control instruction to the electronic devices when the electronic devices are all within the wake-up time in the target scanning period. Each electronic device can receive and execute the control instruction. The electronic devices perform signal scanning synchronously and can simultaneously receive and execute the control instruction of the gateway device.