Optical positioning method, system and device based on LED and image sensor

Optical positioning method, system and device based on LED and image sensor

  • CN 106,610,490 A
  • Filed: 12/30/2016
  • Published: 05/03/2017
  • Est. Priority Date: 12/30/2016
  • Status: Active Application
First Claim
Patent Images

1. it is a kind of based on LED and the light projection method of imageing sensor, it is characterised in that the method is comprised the following steps:

  • Light emitting step:

    Optical signal is sent by the LED of transmitter;

    Distance determines step:

    The light signal strength received by the imageing sensor sensing in receiver, according to the luminous strong of LEDDegree, LED luminous beams distribution character and the light signal strength that receives, obtain between receiver and the LED of transmitter away fromFrom wherein described image sensor front is provided with optical lens;

    Angle-determining step:

    Position coordinateses of the LED imaging faculas center in image sensor plane are determined, according to optical lensOptical projection model, obtains the space relative angle between transmitter and receiver;

    Positioning step:

    The distance between LED-based locus coordinate, receiver and transmitter and space relative angle,Calculate the locus of receiver.

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