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Optical signal processing method and device

A processing method and optical signal technology, applied in the field of signal processing, can solve problems such as inaccurate signals and great influence on signal quality

Active Publication Date: 2015-07-22
FEITIAN TECHNOLOGIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the ambient light and the brightness of the host screen in the prior art have a great influence on the signal quality, the received voltage is directly affected by the brightness of the host screen, so that the optical signal received by the dynamic token is inaccurate and there is a large error

Method used

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  • Optical signal processing method and device
  • Optical signal processing method and device
  • Optical signal processing method and device

Examples

Experimental program
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Effect test

Embodiment 1

[0105] Embodiment 1 of the present invention provides an optical signal processing method, such as figure 1 As shown, it includes a sampling process and a conversion process, wherein the sampling process includes S1-S5, and the conversion process includes S6-S8;

[0106] S1: The sampling module samples the electrical signal to obtain the sampling result, and stores the sampling result in the cache;

[0107]In this embodiment, before step S1, it includes: the optical sensor receives the optical signal output by the output device and converts it into an electrical signal; when the interrupt trigger signal or delay trigger signal is received, the sampling module starts to work and collects the optical The electrical signal output by the sensor;

[0108] Specifically, the sampling module samples the electrical signal to obtain a sampling result, including: the sampling module continuously collects the electrical signal at least three times, and calculates the average voltage acco...

Embodiment 2

[0128] Embodiment 2 of the present invention provides an optical signal processing method, wherein the three states of black, gray, and white in the optical signal are used as an example to describe in detail, and the three states of black, gray, and white correspond to the Low, medium and high levels. After the terminal receives the optical signal output by the output device, it converts the optical signal into an electrical signal through the photoelectric device, and the processing device samples and processes it. The processing device includes a sampling module (for the sampling process) and a conversion module (for the conversion process). The processing method in the embodiment includes a sampling process and a conversion process; as figure 2 As shown, the sampling process includes steps 101-step 121, and the conversion process includes steps 122-step 132;

[0129] Step 101: When receiving an interrupt signal, the sampling module starts to receive electrical signals, c...

Embodiment 3

[0203] Embodiment 3 of the present invention provides a method for adjusting a preset voltage value in an adaptive manner. Specifically, in this embodiment, an adaptive method is required to adjust the maximum preset voltage value and the minimum preset voltage value before sampling, wherein, The maximum preset voltage value is the maximum voltage when the light signal state is white, and the minimum preset voltage value is the minimum voltage when the light signal state is black, such as image 3 As shown, the method of this embodiment specifically includes:

[0204] Step 201: When an interrupt signal is received, the acquisition module receives the electrical signal, continuously acquires multiple voltages, and obtains a sampling result;

[0205] Specifically, in this embodiment, when the device receives the interrupt signal, it continuously collects 4 or 8 times, and calculates the average voltage according to the collected voltage to obtain the sampling result;

[0206] I...

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Abstract

Disclosed are a method and device for increasing the adaptability of light intensity, which relate to the field of photoelectric communications. The method comprises: providing several stages of load resistors in the device, the device collecting voltage values, calculating the average value of all the collected voltage values when a preset number of voltage values which meet the requirements are collected, setting a voltage according to the average value and judging whether the set voltage meets preset requirements; and if yes, collecting data according to the set voltage; otherwise switching a load resistor according to a preset rule, wherein the load voltage may affect the voltage collection. The present invention has the beneficial effects of: improving the adaptability of a screen to light intensity during optical signal collection, and at the same time being able to reduce the error rate.

Description

technical field [0001] The invention relates to the field of signal processing, in particular to an optical signal processing method and device. Background technique [0002] With the rapid development of e-commerce and electronic banking, the Internet and mobile communication networks are increasingly used in financial transactions or online payments. In most transactions, it is first necessary to authenticate the identity of the person requesting the transaction. Identity authentication technologies include: static password authentication, dynamic password authentication, biotechnology authentication, data certificate authentication sent by a third party, etc. [0003] Since the password generated each time is changed, dynamic password authentication can effectively avoid being guessed and cracked, and has become one of the main authentication technologies. The dynamic token generates a dynamic password according to the static factor and the dynamic factor, the static fac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/32H04L1/00
CPCH04B10/00H04B10/616H04L1/00
Inventor 陆舟于华章
Owner FEITIAN TECHNOLOGIES