A photovoltaic CCD optically-controlled access system

A light-controlled access control and photovoltaic technology, applied in the field of optical communication, can solve the problems of complex installation, high complexity, and impracticality, and achieve the effect of increasing communication distance and reducing implementation complexity

Inactive Publication Date: 2016-11-30
SUZHOU ZEMST MACHINERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Existing access control systems generally use wired signal transmission, which requires preset signal transmission lines, which is complicated to install and high in cost. The problem of synthesizing white light with multi-color LEDs is not practical

Method used

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  • A photovoltaic CCD optically-controlled access system
  • A photovoltaic CCD optically-controlled access system
  • A photovoltaic CCD optically-controlled access system

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Embodiment Construction

[0031] A kind of door control voice system based on optical communication of the present invention is described in further detail below in conjunction with accompanying drawing:

[0032] 2. If figure 1 As shown, a photovoltaic CCD light-controlled access control system includes: a central processing unit, a field programmable gate array circuit, a photoelectric detection circuit, a light-controlled lock module, an optical key module, a receiving antenna, a signal processing circuit, a power supply circuit, and a white LED , Visible light transmission link, main controller, audio codec, audio input and output terminals, power supply circuit;

[0033] The signal modulation device is responsible for modulating and generating the original electrical signal; the LED light is a monochrome LED; the light detector is a CCD photoelectric conversion device with a better response in the visible light band; the receiving antenna is a variable multiple optical Lens; the signal processing ...

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PUM

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Abstract

A photovoltaic CCD optically-controlled access system is disclosed. The system comprises a receiving antenna, a signal processing circuit, a power supply circuit and a white-light LED. A main controller is a single-chip microcomputer, and is used for controlling an audio encoding and decoding machine to perform voice data collection and compressed encoding and sending the collected data to an LED drive circuit through a serial port. The LED drive circuit sends on-off signals according to instructions. A photoelectric detection module controls a PD light sensitive tube to receive optical signals and to send the optical signals to the main controller. The main controller sends the received data to the audio encoding and decoding machine to perform decoding and outputting. The system achieves a low complex degree, a low cost and long communication distances, gives consideration to illumination and real-time voice talking-back, and can transmit other data except voices.

Description

technical field [0001] The invention relates to the technical field of optical communication, in particular to a photovoltaic CCD light control access control system. Background technique [0002] Solar energy (solar energy) refers to the thermal radiation energy of the sun (see the three ways of thermal energy transmission), and its main manifestation is the sun's rays that are often said. In modern times, it is generally used to generate electricity or provide energy for water heaters. Since the birth of life on earth, it has mainly survived on the heat radiation energy provided by the sun. Since ancient times, humans have also known to use sunlight to dry objects and use it as a method of making food, such as making salt and drying salted fish. With fossil fuels decreasing day by day, solar energy has become an important part of the energy used by human beings and has been continuously developed. There are two ways to use solar energy: photothermal conversion and photoe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G07C9/00
CPCG07C9/38
Inventor 王烨
Owner SUZHOU ZEMST MACHINERY CO LTD
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