Time Verification Device for Rapid Anomaly Detection in Synchronization Networks
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Solution Overview
Problem
Existing time synchronization systems in networks require multiple receptions of time synchronization messages to detect anomalies, leading to delayed detection of unintended time synchronization.
Innovation Solution
A time synchronization system comprising a master device, one or more slave devices, and a time verification device connected via a communication network, where the master device transmits synchronization messages with global time stamps, and the time verification device generates verification information to rapidly verify the synchronization state between local and global times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple receptions of time synchronization messages are used to detect anomalies, then the reliability of anomaly detection is improved, but the time required to detect anomalies increases
Solution Approach 1:
The patent introduces a time verification device as an intermediary component that independently verifies the validity of time synchronization messages. This mediator receives time synchronization messages from the master node, validates them using verification information (such as checking timestamps, sequence numbers, and consistency), and determines anomalies without requiring multiple message receptions by slave nodes. This resolves the contradiction by maintaining high reliability through independent verification while reducing detection time.
Solution Approach 2:
The patent implements preliminary verification of time synchronization messages by the time verification device before the slave nodes process them. The verification device pre-checks the validity of messages using verification information generated by the master node, and only forwards valid messages to slave nodes. This preliminary action ensures high detection reliability while enabling rapid anomaly detection since the heavy verification work is done in advance by the dedicated verification device rather than requiring multiple receptions by each slave node.
2Speed
If a time verification device is introduced to rapidly verify synchronization states, then the anomaly detection speed is improved, but the device complexity increases
Solution Approach 1:
The time verification device, while adding a new component, is designed with clear specialized functions: receiving time synchronization messages, generating verification information, validating messages, and forwarding results. This specialized multi-functionality allows rapid verification without requiring complex general-purpose processing in each slave node, thus improving speed while keeping individual device complexities manageable through functional specialization.
Data Source
AI summary
A time verification device comprises a verification execution unit and a result transmission unit. The verification execution unit generates verification information for verifying a synchronization state of a local time and a global time for each of one or more slave devices on the basis of master verification information received from a master device and slave verification information received from each of the one or more slave devices. The result transmission unit transmits the verification information generated by the verification execution unit to each of the master device and the one or more slave devices.