Wireless Lamp Control via PWM Signal Packaging
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Solution Overview
Problem
Conventional lamp control methods using solid electrical wires are limited by geographical constraints, making it difficult to effectively control lamps remotely.
Innovation Solution
A wireless control method for lamps using a control device with a GUI that generates PWM signals for brightness and color temperature adjustments, transmitted via wireless technology, allowing for remote control through a handheld device like a cell-phone or PDA.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If solid electrical wire is used for lamp control, then the control connection is stable and reliable, but the geographical disposition is limited and remote control is not achievable
Solution Approach 1:
The patent replaces the mechanical electrical wire connection with a wireless communication system. The control device transmits control signals to the lamp through wireless communication modules, eliminating the need for physical wire connections and enabling remote control operation.
Solution Approach 2:
The patent introduces a wireless communication module as an intermediary between the control device and the lamp. This intermediary converts control signals into wireless transmission formats and receives wireless control commands, facilitating remote control without direct physical connection.
2Adaptability or versatility
If wireless control is implemented, then remote control flexibility is improved, but signal transmission reliability may be affected
Solution Approach 1:
The patent implements a feedback mechanism where the lamp sends acknowledgment signals back to the control device after receiving control commands. The control device monitors whether the lamp responds correctly, and if not, retransmits the command, ensuring reliable control despite wireless transmission uncertainties.
3Ease of operation
If touch-based GUI control is used, then user interaction is simplified, but precise control of multiple parameters becomes difficult
Solution Approach 1:
The patent divides the control interface into separate functional areas: a touch area for simple on/off control and a color control area for precise brightness and color temperature adjustment. This segmentation allows users to choose between simple touch control or precise parameter control depending on their needs.
Solution Approach 2:
The patent adds a dimensional aspect to the touch interface by implementing a color control area with gradient visualization. The color control area displays a gradient from warm white to cold white, allowing users to control multiple parameters (brightness and color temperature) through spatial position in the interface rather than separate controls.
Data Source
AI summary
The control method comprises the following steps. Firstly, whether a touch event occurs in a control device is determined. Then, responding to a color temperature set and a brightness set from the control device, a first PWM and a second PWM is generated. Then, whether the lamp connects with to the control device is determined. Then, the first PWM and the second PWM is packaged in a color control package if the lamp connects with to the control device. Then, the color control package is transmitted to the lamp in wireless.