Frequency Hopping Control for Multi-Master Wireless Game Systems
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Solution Overview
Problem
In wireless communication systems using frequency hopping spread spectrum, especially in game systems requiring real-time communication, existing technologies face challenges in minimizing latency and preventing signal collisions between multiple masters, leading to potential interference and reduced communication quality.
Innovation Solution
A communication device and method that employs a control section to manage frequency hopping for multiple communication modules, ensuring that they do not use the same frequency channels simultaneously, thereby reducing signal collision probability and maintaining stable communication by controlling the frequency hopping patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If frequency hopping spread spectrum is used for wireless communication between multiple masters and slaves, then wireless connectivity and user freedom are improved, but signal collision probability increases leading to transmission errors
Solution Approach 1:
The control section determines frequency hopping patterns for multiple masters in advance before communication begins. By pre-coordinating the hopping patterns of master1 and master2, the system prevents signal collisions before they occur, ensuring reliable transmission while maintaining wireless connectivity.
Solution Approach 2:
The control section monitors and manages the frequency hopping patterns of multiple masters, adjusting them dynamically to avoid collisions. This feedback mechanism ensures that when signal conditions change, the hopping patterns are optimized to prevent interference, maintaining both wireless operation and transmission reliability.
2Reliability
If signal retransmission is used to maintain communication quality in case of collision, then communication reliability is improved, but communication latency increases
Solution Approach 1:
Instead of waiting for collisions to occur and then retransmitting, the control section determines frequency hopping patterns in advance for all masters. This preliminary coordination prevents collisions before they happen, eliminating the need for retransmission and avoiding the associated time delays.
Solution Approach 2:
The system skips the retransmission step entirely by preventing collisions through advance determination of hopping patterns. By rushing through the communication process without collisions, the system maintains high speed real-time communication suitable for gaming applications.
3Reliability
If dedicated communication devices are assigned to each wireless controller, then communication stability is improved, but device complexity and user burden increase
Solution Approach 1:
The control section within a single communication device manages frequency hopping patterns for multiple masters (multiple wireless controllers). This multi-functional approach allows one communication device to serve multiple controllers simultaneously, eliminating the need for dedicated devices while maintaining communication stability through coordinated frequency management.
Solution Approach 2:
The patent combines the functionality of multiple dedicated communication devices into a single device with a control section that manages multiple masters. By merging these functions, the system reduces the total number of devices required while maintaining stable communication through centralized frequency hopping coordination.
Data Source
AI summary
A technology for realizing real-time frequency hopping in an environment containing a plurality of masters. A game machine includes a plurality of communication modules which carry out the frequency hopping, and a control section which controls communication by the communication modules. The control section controls the frequency hopping of at least one communication module to prevent frequency channels used by the plurality of communication modules from temporally overlapping. As a method for achieving the control, for example, a frequency band may be divided, and a divided frequency band may be assigned to each communication module. Alternatively, each communication module may use the same reference hopping pattern by shifting its phase, or may use the reference hopping pattern by adding a predetermined offset.