Projection system and wireless charging method of projection system

Abstract

A projection system comprises a power supply device, a wireless charging transmitting device, a projection system control assembly, a storage unit and an optical system. The wireless charging transmitting device comprises a communication control assembly, a coil and a driving circuit. The optical system comprises a light source, a light valve and a projection lens, the projection system control assembly controls the light valve to convert the illumination light beam into an image light beam, and the projection lens projects the image light beam into a projection image. The user operation information is stored in the storage unit, and the projection image comprises an operation menu related to the user operation information. The projection system control assembly turns on or turns off the wireless charging transmitting device according to user operation information, and the communication control assembly controls the driving circuit to provide driving current to the coil according to device charging information when the wireless charging transmitting device is turned on so as to wirelessly charge the electronic device. The invention further provides a wireless charging method of theprojection system. The projection system and the wireless charging method thereof provided by the invention can provide power for the electronic device, so that brief reports or viewing activities can be carried out smoothly.

Description

technical field [0001] The present invention relates to a projection system and a charging method thereof, in particular to a projection system and a wireless charging method of the projection system. Background technique [0002] The projection system is used for projecting dynamic or static images in mobile electronic devices such as tablet computers and mobile phones for briefing or viewing activities. However, the power source of the mobile electronic device usually relies on its own battery. When the power of the battery of the mobile electronic device is insufficient, an external charging cable is required to charge the battery. Since the connectors of the charging cables used by mobile electronic devices usually have specific specifications, if a suitable charging cable is not carried, the mobile electronic device will not be able to project through the projection system due to insufficient power, which will affect the presentation or viewing activities. Although the...

AI Technical Summary

Problems solved by technology

Since the connectors of the charging cables used by mobile electronic devices usually have specific specifications, if a suitable charging cable is not carried, the mobile electronic device will not be able to project through the projection system due to insufficient power, which will affect the presentation or viewing activities.

Although the current mobile electronic device has a built-in wireless charging receiving device, so that the mobile electronic device can be charged through wireless charging, but the external wireless charging transmitting device for charging the mobile electronic device is an independent device. If there is no external wireless charging transmitter device provided at the briefing or viewing event site, the mobile electronic device still cannot be charged via wireless charging

Therefore, when using a projection system in conjunction with a mobile electronic device for briefing or viewing activities, there is a problem in the prior art that the presentation or viewing activities are difficult to carry out due to the difficulty in providing suitable charging devices or equipment

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