Device Synchronization via Periodic Time Slice Adjustment

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Solution Overview

Problem

In communication technologies, multiple devices sending data simultaneously often result in data loss due to interference, and existing methods that detect channel occupancy before sending data lead to low timeliness and efficiency in data transmission.

Innovation Solution

A device synchronization method that adjusts the data sending cycle based on a preset cycle adjustment parameter and time slice length, ensuring that devices can receive data packets without collision by determining a target time cycle and synchronizing data transmissions within a preset synchronization cycle.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If devices detect channel occupancy before sending data and wait when busy, then data collision is avoided, but sending timeliness deteriorates and transmission efficiency decreases

Engineering Contradiction:
Improvedata transmission reliabilityVSAvoidsending timeliness
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent implements periodic data sending cycles for each device, where devices alternately send data at predetermined time intervals rather than continuously monitoring and waiting. This periodic action ensures that each device has guaranteed transmission opportunities while maintaining reliable data transmission across the network.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The patent dynamically adjusts the data sending cycle of each device based on its priority level and current transmission state. High-priority devices can send more frequently while low-priority devices send less frequently, creating a dynamic scheduling system that improves overall timeliness while preventing collisions through coordinated cycle management.

Inventive Principle:
Principle #15Dynamics

2Productivity

If multiple devices send data simultaneously, then transmission speed increases, but data loss occurs due to mutual interference

Engineering Contradiction:
Improvedata transmission speedVSAvoiddata integrity
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent segments the data transmission process by dividing it into distinct time cycles for different devices. Each device is assigned specific time windows for transmission, creating segmented transmission slots that prevent simultaneous access conflicts while maintaining high overall throughput through efficient utilization of each segment.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent uses periodic data sending cycles where devices transmit data at regular intervals rather than continuously or randomly. This periodic transmission pattern allows multiple devices to operate concurrently in an organized manner, achieving high productivity while preventing data loss through coordinated timing that eliminates interference.

Inventive Principle:
Principle #19Periodic action

3Reliability

If devices use random waiting time before retrying, then collision probability decreases, but transmission efficiency deteriorates due to unnecessary waiting

Engineering Contradiction:
Improvecollision avoidanceVSAvoidtransmission efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent replaces random waiting with predetermined periodic cycles for each device. Instead of using exponential backoff or random delays, each device knows exactly when its next transmission opportunity occurs based on its assigned cycle, eliminating unnecessary waiting time while maintaining reliable collision avoidance through structured periodic access.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The patent enables each device to autonomously determine its own transmission timing based on pre-configured cycle parameters and priority levels. Devices self-manage their transmission schedules without needing to monitor channel state or perform random backoff calculations, improving efficiency while maintaining collision-free operation through decentralized autonomous scheduling.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS11477003B2Device synchronization method and apparatus, device, and storage medium
Publication Date: 2022.10.18 KEENON ROBOTICS CO LTD
  • US11477003B2 patent drawing
  • US11477003B2 patent drawing
  • US11477003B2 patent drawing

AI summary

Provided are a device synchronization method and apparatus, a device, and a storage medium. The device synchronization method includes: in response to determining that a second device does not receive a first data packet, determining a target time cycle for sending data packets by the second device based on a preset cycle adjustment parameter and a preset time slice length; determining whether the second device receives a second data packet sent by the first device based on the time slice length and the target time cycle of the second device; and in response to determining that the second device receives the second data packet sent by the first device, determining a time point for sending a data packet next time by the second device according to data packet information of the first device, achieving cycle synchronization of the second device in a preset synchronization cycle time period.