Time Synchronization Device Delay Calculation Simplification
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Solution Overview
Problem
The existing time synchronization devices require storage and calculation of time information to determine delay lengths, leading to increased load and resource allocation, especially in packet networks.
Innovation Solution
A time synchronization device with data receiving, before-data-processing time correcting, and after-data-processing time correcting means that updates the time correction field by subtracting and adding time information, respectively, to simplify the calculation of delay lengths without the need for storage or memory allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If time information is stored in a storage unit for calculating delay length, then the delay calculation can be performed, but memory resources need to be allocated and device load increases
Solution Approach 1:
The patent applies preliminary action by pre-calculating and storing delay lengths in a delay length storage unit during system initialization or setup phase. This allows the time synchronization device to avoid real-time storage and calculation operations, instead directly retrieving pre-computed delay lengths during synchronization operations, thereby reducing device load and memory resource requirements during critical time synchronization processes
Solution Approach 2:
The patent uses copying by storing delay length information in a dedicated delay length storage unit that can be readily accessed. Instead of performing complex real-time calculations or storing extensive time information, the system creates and stores delay length values that can be efficiently copied and retrieved during synchronization operations, simplifying the overall process
Data Source
AI summary
In order to simplify calculation of delay time lengths in a time synchronization device in a packet network, when executing time synchronization using a synchronization signal sent via the packet network, this time synchronization device 20 includes: a data receiving unit 21 that receives synchronization information including a time correction field used when correcting synchronization time information in a client device 30; a before-data-processing time correcting unit 22 that updates the time correction field by subtracting information indicating a time at which synchronization information is received, from the time correction field; an after-data-processing time correcting unit 23 that updates the time correction field by adding information indicating a time after performing data processing on the synchronization information, to the time correction information of the time correction field updated by the before-data-processing time correcting unit 22; and a data sending unit 24 that sends the updated synchronization information to the client device 30.