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Optical communication control method, device and optical communication system

A technology of an optical communication system and a control method, applied in the field of optical communication, can solve the problems of difficult control of brightness and limited communication information, and achieve the effect of facilitating communication

Active Publication Date: 2020-03-24
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The brightness of ordinary light sources used in traditional vehicle-to-vehicle optical communication technology is not easy to control, so the communication information that can be transmitted is limited

Method used

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  • Optical communication control method, device and optical communication system
  • Optical communication control method, device and optical communication system
  • Optical communication control method, device and optical communication system

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Embodiment Construction

[0037] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0038] see figure 1 , the present invention provides an optical communication control method, comprising the following steps:

[0039] Step S1: Acquiring a time-sharing image of the location of the modulated light-emitting element; wherein, the modulated light-emitting element is controlled by a PWM modulation method to emit light.

[0040] PWM (Pulse Width Modulation, Pulse Width Modulation) is an analog control side pulse width modulation. It is a very effective technology that uses the digital output of a microprocessor to control an...

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PUM

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Abstract

The invention provides a method for controlling optical communication, comprising the following steps of: acquiring a time-sharing image of the position at which a modulating light-emitting element isdisposed, wherein the modulating light-emitting element illuminates controlled by a PWM modulation mode; analyzing the time-sharing image to determine the PWM waveform information transmitted by themodulating light-emitting element; and parsing the PWM waveform information to obtain corresponding communication information. In the optical communication control method provided by the invention, the modulating light-emitting element is provided with different light-emitting images at different times based on the PWM modulation method, thus corresponding communication information is determined by the different light-emitting images. In addition, the invention further provides an optical communication control device corresponding to the optical communication control method. The invention alsoprovides an optical communication system, which is mainly applied in the vehicle-to-vehicle communication technology, and capable of realizing real-time effective communication between vehicles.

Description

technical field [0001] The present invention relates to the technical field of optical communication, in particular to an optical communication control method, a corresponding optical communication control device and an optical communication system. Background technique [0002] Nowadays, behind the increase in vehicles that facilitate people's travel and cargo transportation, traffic accidents have always been a major safety hazard after the popularity of vehicles. With the continuous improvement of people's safety awareness, more and more vehicle-to-vehicle communication technologies are gradually applied to vehicles. The "hidden" data that cannot be opened can automatically predict whether a possible collision will occur in front of the vehicle's driving road, so the use of vehicle-to-vehicle communication technology can greatly reduce the incidence of potential crises. [0003] In vehicle-to-vehicle communication technology, vehicle-to-vehicle optical communication tech...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/116H04B10/516H04B10/67H04W4/46
CPCH04B10/116H04B10/516H04B10/67
Inventor 朱琳
Owner BOE TECH GRP CO LTD
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