Projector Wireless Charging Control for Uninterrupted Presentations
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Solution Overview
Problem
The challenge is to facilitate presentations or viewing activities with mobile electronic devices when their batteries are low, as external charging cables or wireless charging devices may not be readily available, disrupting the use of projection systems.
Innovation Solution
A projection system integrated with a power supply device, a wireless charging transmission device, a projection system control assembly, a storage unit, and an optical system, where the control assembly turns on or off the wireless charging based on user input, using a coil and driving circuit to provide power to the device, and an optical system for projecting images, including operation menus for charging functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mobile electronic devices rely on their own battery for power, then the device can operate independently, but when the battery is low, the device cannot be charged without external charging equipment, disrupting presentation or viewing activities
Solution Approach 1:
The patent combines the wireless charging transmission device with the projection system, integrating two separate functions (projection and wireless charging) into a single system. The control assembly of the projection system manages both projection operations and wireless charging operations, eliminating the need for separate external charging equipment and ensuring continuous operation during presentations.
2Ease of operation
If external wireless charging transmission devices are used to charge mobile electronic devices, then wireless charging can be provided, but these devices are independent and not always available at presentation or viewing activities
Solution Approach 1:
The projection system is designed to perform multiple functions: it can project images/videos and simultaneously provide wireless charging services. The control assembly includes a wireless charging control unit that manages charging operations, making the projection system a universal device that eliminates the need for separate wireless charging transmitters at presentation locations.
3Productivity
If a projection system is used with mobile electronic devices for presentations, then dynamic images can be projected, but when the device battery is low and no suitable charging device is available, the presentation cannot continue
Solution Approach 1:
The integrated projection system provides continuous useful action by simultaneously performing projection and wireless charging functions. The control assembly monitors battery status and automatically activates wireless charging when needed, ensuring that the mobile electronic device remains powered throughout the presentation without interruption or time loss for separate charging operations.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables timely power provision to electronic devices through wireless charging, ensuring uninterrupted presentations or viewing activities by integrating charging functionality within the projection system.
Implementation Method 1
The wireless charging transmission device includes a communication control assembly, a coil, and a driving circuit. The driving circuit is electrically connected to the power supply device. The communication control assembly controls the driving circuit to provide a driving current to the coil according to a device charging information received via the coil when the wireless charging transmission device is turned on, so as to wirelessly charge an electric device.
Data Source
AI summary
A projection system includes a power supply device, a wireless charging transmission device, a projection system control assembly, a storage unit, and an optical system. The projection system control assembly controls a light valve thereof to convert illumination beam into image beam. A projection lens thereof projects the image beam to be a projection image. A user operation information is stored in the storage unit. The projection image includes an operation menu related to the user operation information. The projection system control assembly turns on or turns off the wireless charging transmission device according to the user operation information to wirelessly charge electronic device. A wireless charging method of the projection system is also provided.