Sz Dji Technology Co., Ltd.

Huawei Technologies Co., Limited

Xu Yang Pan

Jun Shi

Lei Zhang

Jing Hu

Xiaoping Zhou

Yue Wen

Chengzhi Xu

A method of assisted takeoff of a movable object includes increasing output to an actuator that drives a propulsion unit of the movable object under a first feedback control scheme, determining whether the movable object has met a takeoff threshold, and controlling the output to the actuator using a second feedback control scheme different from the first feedback control scheme in response to the movable object having met the takeoff threshold.

Assisted takeoff

Systems, methods, and devices are provided for assisted takeoff of an aerial vehicle. The aerial vehicle may takeoff using a first control scheme and switch to a second control scheme for normal flight when a takeoff threshold is met. The first control scheme optionally does not use integral control while the second control scheme may use integral control. The aerial vehicle may determine that a takeoff threshold is met, based on an output to a motor of the aerial vehicle and/or an acceleration of the aerial vehicle.

The present invention discloses: when a first laser in N lasers is switched to a second idle laser in M lasers, a wavelength of a wavelength-selective optical element to which the first laser is coupled is adjusted from a first wavelength to a second wavelength, and the second wavelength is different from the N wavelengths. Similarly, when a first optical receiver in N optical receivers is switched to a second idle optical receiver in M optical receivers, a wavelength of a wavelength-selective optical element to which the first optical receiver is coupled is adjusted from a first wavelength to a second wavelength, and the second wavelength is different from the N wavelengths.

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Shenzhen, China

Xu Yang Pan