Smart Home Device Synchronization via Cumulative Processing Time
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Solution Overview
Problem
In smart home systems, achieving synchronization control of multiple nodes within a large wireless Mesh network is challenging, leading to poor user experience due to latency and incomplete synchronization.
Innovation Solution
A synchronization control method where control commands carry a count-down time duration and processing time, allowing smart home devices to determine their command execution time based on their own processing time and the total processing time of devices on the transmission path, ensuring accurate and synchronized execution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a central controller is used to control smart home devices, then control functionality is achieved, but control latency increases and user experience deteriorates
Solution Approach 1:
The patent segments the centralized control architecture into distributed control nodes. Each smart home device becomes an independent control node that can directly receive and execute control commands from terminal devices, eliminating the single-point bottleneck of the central controller and reducing control latency through parallel processing paths.
Solution Approach 2:
The patent introduces a time synchronization mechanism as an intermediary layer between control commands and device execution. By adding timestamp information and processing time fields to control packets, the system mediates the timing coordination between distributed nodes, enabling synchronized execution without requiring centralized arbitration.
2Area of stationary object
If wireless Mesh network is used to connect smart home devices, then network coverage and connectivity are improved, but synchronization control becomes difficult to achieve
Solution Approach 1:
The patent applies preliminary action by pre-calculating and embedding the total processing time in the control packet header before transmission. Each node adds its processing time to the accumulated total during forwarding, so that the target device receives the complete timing information in advance, allowing it to determine the exact execution time without waiting for feedback from other nodes.
Solution Approach 2:
The patent implements feedback through the time synchronization mechanism where each node's processing time is recorded and fed back into the control packet. This creates a closed-loop timing system where the execution time determination is based on actual measured processing times from all nodes in the transmission path, ensuring accurate synchronization despite network variations.
3Adaptability or versatility
If multiple smart home devices need to work synchronously in a large Mesh network, then system functionality is enhanced, but complete synchronization becomes hard to achieve
Solution Approach 1:
The patent changes the parameter representation by introducing a cumulative processing time field that dynamically adapts to the number of hops in the network. Instead of using fixed timing schedules, the system adjusts the execution time parameter based on the actual path length and processing requirements, allowing synchronized operation across varying network topologies and device counts.
Data Source
AI summary
The present disclosure relates to the smart home field, disclosing a synchronization control method within wireless network, a wireless network and a smart home device. In the present disclosure, controlling a terminal to broadcast a control command directed at multiple smart home devices; characterized in, the control command carries a count-down time duration for command execution time; continuing to broadcast the control command by a smart home device which receives the control command within its wireless broadcast coverage area, and carrying in the broadcasted control command the processing time for the smart home device to process the control command; determining command execution time by respective smart home devices to execute the control command according to the count-down time duration in the received control command, as well as the total processing time of respective smart home devices which the control command passes on its transmission path. The present disclosure enables respective devices in smart home system to achieve synchronization control, greatly improving user experience.