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Vehicle-mounted visible light communication receiving end device based on a photovoltaic cell

A technology of visible light communication and photovoltaic cells, which is applied in the field of network communication, can solve problems such as non-compliance and increased energy consumption, and achieve the effects of reducing energy supply, reducing energy consumption, and improving environmental energy utilization

Inactive Publication Date: 2019-05-17
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cars use light energy to power vehicle sensors without polluting the environment. Traditional vehicle sensors use in-vehicle batteries to supply energy, which undoubtedly increases unnecessary energy consumption and does not conform to the current concept of green development.

Method used

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  • Vehicle-mounted visible light communication receiving end device based on a photovoltaic cell
  • Vehicle-mounted visible light communication receiving end device based on a photovoltaic cell
  • Vehicle-mounted visible light communication receiving end device based on a photovoltaic cell

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Embodiment 1

[0041] refer to image 3 , the current space where the vehicle-mounted visible light communication receiver device in this embodiment is located is a daytime environment, and the ambient light source includes the sun light source and the daytime running light source. The energy threshold is required. At this time, the photovoltaic module not only supplies the electric energy converted from light energy to the visible light receiving module for normal operation, but also stores the surplus electricity in the energy storage element 6 in the form of DC energy.

Embodiment 2

[0043] The difference between this embodiment and Embodiment 1 is that the current space in this embodiment is a nighttime environment, and the ambient light sources include ambient light sources such as street lamps and driving light sources.

[0044] refer to Figure 4 At this time, the ambient light source is weaker than that in the daytime, and the photovoltaic module converts the light energy of the ambient light source (such as street lamp) and driving light source into electrical energy. When the conversion energy is lower than the energy threshold required by the visible light receiving module, and it is difficult to support the normal operation of the visible light receiving module, this device can reversely supply the DC energy stored in the energy storage element during the day to the visible light receiving module to ensure its normal operation.

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Abstract

The invention discloses a vehicle-mounted visible light communication receiving end device based on a photovoltaic cell. The device can utilize the environment light source and the signal light sourceto generate electric energy to realize autonomous power supply while receiving visible light signals of other vehicles; unnecessary energy consumption of the vehicle is reduced; the system comprisesa visible light receiving module and a photovoltaic module, wherein the visible light receiving module comprises a photodiode array, an information processing circuit and a main control unit, and thephotodiode array is used for receiving visible light information, converting an original visible light signal into an original electric signal and allowing the information processing circuit to filterand modulate the signal and process the main control unit; the photovoltaic module comprises a photovoltaic cell panel array, an energy collection circuit and an energy storage element. The photovoltaic cell panel array is used for achieving light-electricity conversion of an environment light source and a signal light source and providing energy needed by work for all components of the visible light receiving module through the energy collecting circuit and the energy storage element.

Description

technical field [0001] The invention belongs to the field of network communication, and relates to a vehicle-mounted visible light communication receiver device, in particular to a vehicle-mounted visible light communication receiver device based on a photovoltaic cell. Background technique [0002] Light-emitting diode LED is a semiconductor device that can convert electrical energy into light energy. With the advantages of long product life, low cost, high brightness, and small size, it is called the fourth-generation green and environmentally friendly lighting source. Compared with traditional automotive halogen headlights and xenon headlights, using LED headlights is more energy-efficient, more environmentally friendly, more durable, higher brightness, and faster lighting speed. Therefore, it has been favored by more and more car manufacturers, and has gradually become an essential element of car lights. Due to the ultra-high response frequency of LED lights, it is ver...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/116H04B10/60H04B10/80
Inventor 许梦昊
Owner XIDIAN UNIV
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