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1. (WO2017201990) PROJECTOR SAFE WORKING METHOD AND DEVICE

Pub. No.:    WO/2017/201990    International Application No.:    PCT/CN2016/106641
Publication Date: Fri Dec 01 00:59:59 CET 2017 International Filing Date: Tue Nov 22 00:59:59 CET 2016
IPC: G03B 21/16
Applicants: ZTE CORPORATION
中兴通讯股份有限公司
Inventors: ZHANG, Yongliang
张永亮
Title: PROJECTOR SAFE WORKING METHOD AND DEVICE
Abstract:
A projector safe working method and device, the method comprises the following steps: detecting the fan rotational speed of the projector fan (S101); detecting the battery temperature of the projector's built-in battery (S102); detecting the brightness of the projector's light engine (S103); when the fan rotational speed is less than a preset first rotational speed value and is greater than or equal to a preset second rotational speed value, and the brightness of the light engine is a preset first brightness value, reducing the brightness of the light engine from the first brightness value to a preset second brightness value (S104); when the battery temperature is lower than a preset first temperature value and is higher than or equal to a preset second temperature value, and the brightness of the light engine is the preset first brightness value, reducing the brightness of the light engine from the first brightness value to the preset second brightness value (S105), thereby maintaining the internal temperature of the projector at a long-term safety level.