Detection apparatus, detection system, detection method, and movable device

Abstract

A detection apparatus is configured to be mounted to a device body of a movable device via a driving member and includes an emission component. The emission component includes an emitter configured to emit a signal, a reflector disposed in proximity to the emitter and configured to reflect the signal emitted by the emitter, and a driver connected to the reflector and configured to drive the reflector to rotate to emit the signal to different directions. Based on a direction range in which an obstacle is located, the driving member is selected to drive the detection apparatus to rotate; or the driver of the emission component is selected to drive the reflector to rotate.

What is claimed is: 
     
         1 . A detection apparatus comprising:
 an emission component including:
 an emitter configured to emit a signal; 
 a reflector disposed in proximity to the emitter and configured to reflect the signal emitted by the emitter; and 
 a driver connected to the reflector and configured to drive the reflector to rotate to emit the signal to different directions; 
   wherein:
 the detection apparatus is configured to be mounted to a device body of a movable device via a driving member; and 
 based on a direction range in which an obstacle is located:
 the driving member is selected to drive the detection apparatus to rotate; or 
 the driver of the emission component is selected to drive the reflector to rotate. 
 
   
     
     
         2 . The detection apparatus of  claim 1 , wherein the emitter includes a laser emitter and the signal includes a laser signal. 
     
     
         3 . The detection apparatus of  claim 1 , wherein the emitter includes an emission head and an emission lens connected to the emission head. 
     
     
         4 . The detection apparatus of  claim 3 , wherein the emission head includes a laser emission head and the emission lens includes a collimating lens. 
     
     
         5 . The detection apparatus of  claim 1 , wherein the driver includes a micro-electro-mechanical system (MEMS) driver. 
     
     
         6 . The detection apparatus of  claim 1 , further comprising:
 a modulator configured to perform an amplitude modulation on the signal emitted by the emitter.   
     
     
         7 . The detection apparatus of  claim 1 , further comprising:
 a receiver electrically connected with the controller and configured to receive a reflected signal from the obstacle.   
     
     
         8 . The detection apparatus of  claim 7 , wherein the receiver includes:
 a photodiode configured to receive the reflected signal and convert the reflected signal into an electrical signal; and   a receiving lens disposed over the photodiode.   
     
     
         9 . The detection apparatus of  claim 1 , wherein:
 the driver is configured to drive the reflector to rotate with respect to the emitter around a plurality of axes including a first axis and a second axis; and   the driving member is configured to drive the detection apparatus to rotate around a third axis.   
     
     
         10 . The detection apparatus of  claim 9 , wherein the third axis is different from the first axis and the second axis. 
     
     
         11 . The detection apparatus of  claim 9 , wherein:
 the plurality of axes include a roll axis of the movable device and a pitch axis of the movable device; and   the third axis includes a yaw axis of the movable device.   
     
     
         12 . The detection apparatus of  claim 1 , wherein:
 in response to the obstacle being in a first direction range, the driving member is selected to drive the detection apparatus to rotate while the driver of the emission component does not drive the reflector to rotate; and   in response to the obstacle being in a second direction range, the driver of the emission component is selected to drive the reflector to rotate.   
     
     
         13 . A movable device comprising:
 a device body;   a control device configured to control an operation of the movable device;   a driving member disposed at the device body; and   a detection apparatus configured to be mounted to the device body via the driving member, the detection apparatus including:
 an emission component including:
 an emitter configured to emit a signal; 
 a reflector disposed in proximity to the emitter and configured to reflect the signal emitted by the emitter; and 
 a driver connected to the reflector and configured to drive the reflector to rotate to emit the signal to different directions; 
 
   wherein the control device is further configured to, based on a direction range in which an obstacle is located:
 select the driving member to drive the detection apparatus to rotate; or 
 select the driver of the emission component to drive the reflector to rotate. 
   
     
     
         14 . The movable device of  claim 13 , further comprising:
 a propulsion device extending from the device body and configured to provide power for propelling the movable device.   
     
     
         15 . The movable device of  claim 13 , wherein the detection apparatus further includes:
 a receiver electrically connected with the controller and configured to receive a reflected signal from the obstacle.   
     
     
         16 . The movable device of  claim 15 , wherein the receiver includes:
 a photodiode configured to receive the reflected signal and convert the reflected signal into an electrical signal; and   a receiving lens disposed over the photodiode.   
     
     
         17 . The movable device of  claim 13 , wherein:
 the driver is configured to drive the reflector to rotate with respect to the emitter around a plurality of axes including a first axis and a second axis; and   the driving member is configured to drive the detection apparatus to rotate around a third axis.   
     
     
         18 . The movable device of  claim 17 , wherein the third axis is different from the first axis and the second axis. 
     
     
         19 . The movable device of  claim 17 , wherein:
 the plurality of axes include a roll axis of the movable device and a pitch axis of the movable device; and   the third axis includes a yaw axis of the movable device.   
     
     
         20 . The movable device of  claim 13 , wherein the control device is further configured to:
 in response to the obstacle being in a first direction range, select the driving member to drive the detection apparatus to rotate while the driver of the emission component does not drive the reflector to rotate; and   in response to the obstacle being in a second direction range, select the driver of the emission component to drive the reflector to rotate.