Wireless Control Device Beacon Channel Selection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing RF lighting control systems face challenges in establishing reliable communication between control devices operating on different frequencies, particularly in noisy environments, which can lead to interference and hinder proper configuration.
Innovation Solution
A method involving the transmission of a beacon signal on a predetermined channel, where control devices listen for and lock onto the beacon signal on one of multiple available channels, allowing them to communicate effectively on the designated channel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If control devices transmit and receive RF signals on the same frequency, then communication reliability is improved, but interference with nearby RF lighting control systems increases
Solution Approach 1:
The patent divides the RF communication spectrum into multiple frequency channels. Each control system can operate on a different channel, segmenting the overall communication environment. This allows multiple systems to coexist without interference while maintaining reliable communication on their designated channels.
Solution Approach 2:
The patent introduces frequency channel selection as an additional dimension for system differentiation. Instead of all systems operating on a single frequency, the system adds the frequency channel dimension, allowing spatial and spectral separation of multiple control systems to prevent interference.
2Object-affected harmful factors
If control devices use different frequency channels, then interference with nearby systems is reduced, but establishing communication between devices on different frequencies becomes complex
Solution Approach 1:
The patent implements preliminary channel selection and beacon transmission before actual control communication. The master control device预先 selects an optimal frequency channel and transmits beacon signals to establish the communication framework. This preliminary setup simplifies subsequent device pairing and communication establishment.
Solution Approach 2:
The patent uses beacon signals as an intermediary mechanism to facilitate communication establishment between devices on different frequency channels. The beacon signal acts as a mediator that carries channel identification information, allowing control devices to discover and connect to each other on the appropriate frequency without complex manual configuration.
3Reliability
If control devices listen for beacon signals on multiple channels, then communication reliability in noisy environments is improved, but the time required for channel establishment increases
Solution Approach 1:
The patent implements periodic beacon signal transmission at predetermined intervals on each frequency channel. Control devices listen for these periodic beacons, and the repeating pattern allows devices to reliably detect the presence of other systems while maintaining a predictable time framework for channel establishment.
Solution Approach 2:
The patent allows control devices to dynamically change their listening parameters, such as the duration of listening on each channel and the threshold for beacon detection. By adjusting these parameters, the system can balance between thorough channel scanning for reliability and minimizing the time spent on channel establishment.
Data Source
AI summary
The method of the present invention allows a first wireless control device that is operable to communicate on a predetermined one of a plurality of channels to establish communication with a second wireless control device that may be communicating on any of the plurality of channels. A beacon message is first transmitted repeatedly by the wireless control device on the predetermined channel. The second wireless control device listens for the beacon message for a predetermined amount of time on each of the plurality of channels. When the second control device receives the beacon message on the predetermined channel, the second control device begins communicating on the predetermined channel. The second wireless device may begin listening for the beacon message in response to powering up.