Wireless Frequency Hopping Sync for Fast Industrial Connections
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Solution Overview
Problem
Conventional industrial wireless communication systems struggle to establish synchronous connections rapidly.
Innovation Solution
An industrial wireless communication system that utilizes frequency hopping methods with synchronized communication frequencies and staggered switching periods to ensure rapid and reliable synchronous connections between base and remote wireless devices, including a synchronous connection signal transmission process with identification information and time synchronization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If frequency hopping method is used for wireless communication, then communication stability is improved, but connection establishment speed deteriorates
Solution Approach 1:
The patent applies preliminary action by pre-establishing frequency hopping patterns and synchronization parameters before actual data transmission begins. The master device and slave devices perform frequency synchronization and pattern matching in advance during the connection establishment phase, so that when data transmission starts, the frequency hopping is already synchronized, thus maintaining communication stability while reducing the impact on connection speed.
2Reliability
If synchronization matching is performed at the start of communication, then connection reliability is improved, but time consumption increases
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting synchronization parameters such as frequency offset, hopping rate, and pattern selection based on communication conditions. The system can switch between different synchronization modes (e.g., coarse synchronization followed by fine synchronization) and adapt parameters like the number of synchronization packets exchanged, allowing it to achieve reliable synchronization while minimizing time consumption by using faster parameter sets when conditions permit.
Data Source
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AI summary
This industrial wireless communication system (10) comprises a base wireless device (14) and a remote wireless device (16). The base wireless device has a synchronous connection transmission unit (25) for performing, by broadcast, the transmission process of transmitting a synchronous connection signal for achieving synchronous connection to the remote wireless device in only a single synchronous connection period (Tsc) which is an integral multiple of a hopping period (Tfh), the synchronous connection transmission unit sequentially switching communication frequencies for synchronization so as to transmit the synchronous connection signal with a plurality of communication frequencies for synchronization within one hopping period. The remote wireless device has a synchronous connection reception unit (36) for sequentially switching communication frequencies for synchronization with a switching period (Tcg) which is longer than the hopping period and shorter than twice the hopping period so as to perform a reception wait process for the synchronous connection signal with a plurality of communication frequencies for synchronization.