Wi-Fi Load Control for Remote Lighting Power Adjustment
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Solution Overview
Problem
There is a need for a wireless load control device that can connect to the Internet via a wireless connection and control or program a lighting load in response to messages received from a wireless device, such as a smartphone.
Innovation Solution
A load control device that includes a controllably conductive device coupled in series electrical connection between an AC power source and an electrical load, a controller operatively coupled to the controllably conductive device, and a Wi-Fi module operable to receive wireless signals directly from a wireless local area network or a point-to-point communication device, such as a smartphone, for controlling the power delivered to the load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a load control device uses traditional wireless communication (RF/IR), then it can provide wireless control capability, but it cannot connect to the Internet for remote control from distant locations
Solution Approach 1:
The patent introduces a Wi-Fi communication module as an intermediary that enables the load control device to connect to the Internet through wireless networks. This mediator allows the device to receive control commands from remote locations via the Internet while maintaining compatibility with existing control architectures, thus achieving Internet connectivity without fundamentally redesigning the entire system.
2Ease of operation
If a load control device adds Internet connectivity, then it enables remote control from anywhere in the world, but it increases device complexity
Solution Approach 1:
The load control device is designed with multi-functionality, incorporating both traditional local control capabilities and new Internet-based remote control functions. The device can operate in multiple modes: local wireless control, Internet remote control, and hybrid operation, making it universally applicable across different usage scenarios without requiring separate devices.
Solution Approach 2:
The Wi-Fi module serves as an intermediary layer that bridges the gap between the simple user interface (smartphone/web browser) and the complex control logic, allowing users to control the device from anywhere in the world without exposing them to the underlying system complexity.
3Ease of operation
If a load control device uses wireless communication modules, then it provides wireless control capability, but it increases power consumption
Solution Approach 1:
The Wi-Fi communication module is designed to operate in periodic intervals rather than continuously. It activates only when control commands need to be transmitted or received, and remains in low-power state otherwise. This periodic operation significantly reduces overall power consumption while maintaining wireless control functionality.
Data Source
AI summary
A load control device for controlling the power delivered from an AC power source to an electrical load is able to receive radio-frequency (RF) signals from a Wi-Fi-enabled device, such as a smart phone, via a wireless local area network. The load control device comprises a controllably conductive device adapted to be coupled in series between the source and the load, a controller for rendering the controllably conductive device conductive and non-conductive, and a Wi-Fi module operable to receive the RF signals directly from the wireless network. The controller controls the controllably conductive device to adjust the power delivered to the load in response to the wireless signals received from the wireless network. The load control device may further comprise an optical module operable to receive an optical signal, such that the controller may obtain an IP address from the received optical signal and control the power delivered to the load in response to a wireless signal received from the wireless network that includes the IP address.