Virtual Wireless Channels for Fast Command Response
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Solution Overview
Problem
In traditional bidirectional wireless communication systems, operational commands are delayed due to the use of a single communication channel, which treats commands and informational data equally, leading to undesirable responsiveness in remote-controlled movable barrier systems.
Innovation Solution
Implementing a bidirectional wireless communication system that utilizes multiple virtual communication channels, prioritizing operational commands on a command channel with a short connection interval and auxiliary data on a control channel with a longer interval, ensuring quick delivery of control commands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single communication channel is used for all communication purposes, then device complexity is reduced, but command response time deteriorates
Solution Approach 1:
The single communication channel is segmented into multiple virtual channels (command channel and control channel) that operate simultaneously. The command channel is dedicated for operational commands with high priority, while the control channel handles auxiliary data. This segmentation allows commands to be transmitted without waiting for data communication to complete, thereby reducing command response time while maintaining manageable system complexity through logical channel division.
2Ease of operation
If commands and informational data are treated equally on a single channel, then channel management is simplified, but command delivery speed deteriorates
Solution Approach 1:
The communication stream is segmented into two distinct virtual channels with different priorities. The command channel is specifically designated for operational commands and operates with higher priority, ensuring commands are delivered immediately when the channel is available. The control channel handles auxiliary data with lower priority. This segmentation enables differential handling of command and data traffic, improving command delivery speed while keeping channel management straightforward through clear functional separation.
3Productivity
If commands are held in a queue until data communication completes, then channel utilization is optimized, but system responsiveness deteriorates
Solution Approach 1:
The single channel is segmented into a command channel and a control channel that can operate in parallel. When data communication occurs on the control channel, command transmissions can simultaneously occur on the command channel without being held in a queue. This segmentation maintains high channel utilization by keeping both channels active while dramatically improving system responsiveness by eliminating the queuing delay for critical commands.
4Device complexity
If a single channel is used for bidirectional communication, then the communication system is simpler, but operational command priority cannot be ensured
Solution Approach 1:
The communication system is segmented into two virtual channels with distinct functional roles. The command channel is dedicated exclusively for operational commands from the control device to the movable barrier operator, ensuring commands receive immediate attention. The control channel handles bidirectional auxiliary data communication. This segmentation adds minimal complexity while providing robust command prioritization capability, allowing the system to adapt to different communication needs by selecting the appropriate channel based on message type.
Data Source
AI summary
A method for communicating over a wireless network. The method includes detecting, by a first device, a trigger event triggering communication with a second device and determining a desired channel of a plurality of communication channels appropriate for communication with a second device based on the trigger event. The method further includes generating, by the first device, an advertisement including a desired channel byte corresponding to the desired channel. The method further includes receiving, by the second device, the advertisement and identifying the desired channel byte included in the advertisement. The method further includes, transmitting, by the second device, a connection request for establishing a communication connection with the first device via the desired channel and associated connection parameters in response to identifying the desired channel byte included in the advertisement.