Remote Wireless Control Device Reset via Beacon Signal
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Solution Overview
Problem
Existing RF lighting control systems face challenges in resetting remotely located control devices to a default factory setting, especially when they are communicating on an unknown channel, as physical access is impractical and communication is hindered.
Innovation Solution
A method involving the transmission of a beacon signal on a predetermined channel, followed by the control device scanning for and locking onto this channel, and then receiving an instruction message to restore the default factory setting, allowing for remote resetting of the control device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the control device is mounted in a remote location, then the system coverage is improved, but physical access for resetting the device becomes impractical
Solution Approach 1:
The patent replaces the mechanical approach of physically accessing the device for resetting with a wireless RF-based method. The master control transmits RF signals to the remote control device, and the device responds by transmitting its unique identifier back to the master control, enabling identification and resetting without physical contact.
2Adaptability or versatility
If the control device communicates on an unknown channel, then the system adaptability is improved, but communication reliability deteriorates
Solution Approach 1:
The patent implements a preliminary channel scanning phase where the control device systematically searches through available RF channels to locate the master control's transmission channel. This preliminary action ensures that even though the device starts on an unknown channel, it can reliably establish communication by proactively finding the correct channel before normal operation begins.
Data Source
AI summary
The present invention provides a method of restoring a remotely-located control device of a wireless load control system to a default factory setting. The control device is operable to be coupled to a source of power and has a memory for storing programming information. First, a beacon message is transmitted repeatedly on a predetermined channel. Second, power is applied to the control device. Subsequently, the control device listens for the beacon message for a predetermined amount of time on each of the plurality of channels, and receives the beacon message on the predetermined channel. Next, the a first signal uniquely identifying the control device is transmitted wirelessly from the control device on the predetermined channel within a predetermined amount of time power is applied to the control device. Finally, the control device receives a second signal transmitted on the predetermined channel, and programs the memory with the default factory setting in response to the second signal.