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Wireless data communication method based on intelligent mobile phone with camera

A wireless data communication and smart phone technology, applied in the direction of free space transmission, short-distance system, etc., can solve the problems of external equipment power consumption and high technical requirements, achieve improved image grayscale recognition methods, accurate detection and judgment, and reduce power consumption. consumption effect

Inactive Publication Date: 2014-07-02
CHENGDU EACOM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Bluetooth and wifi can be used in almost all mobile phones, but these communication methods have relatively high power consumption and technical requirements for external devices; although NFC has low power consumption requirements for external devices, this method is not used in many smart phones. not support

Method used

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  • Wireless data communication method based on intelligent mobile phone with camera

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Embodiment Construction

[0023] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0024] The wireless data communication method based on a smart phone with a camera in the present invention uses a light-emitting device as an information emission source, and the information emission source represents byte information in binary form with emission brightness at a set time length; the set time length Not less than the minimum image detection cycle of the smartphone;

[0025] The light-emitting device can be various high-frequency light-emitting devices, such as light-emitting diodes combined with integrated circuit chips with dimming functions, which can reach a flicker frequency of tens of kilohertz to megahertz. The larger the amount of data. Binary 1 and 0 are respectively represented by turning on and off of the light emitting device within a preset time p...

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Abstract

The invention provides a wireless data communication method based on an intelligent mobile phone with a camera. A lighting device is used as an information transmitting source, and an information receiving source is the intelligent mobile phone with the camera. Information receiving steps include the procedures of starting a camera communication function, detecting a hand-shaking signal through the camera, building a data communication channel if the hand-shaking signal is legal, detecting a transmission signal through the camera after the data communication channel is built, storing or decoding the detected signal, transmitting a stopping signal through the information transmitting source after data transmission is finished, and closing the data communication channel after the camera detects the stopping signal. In terms of the information receiving steps, the camera detects whether an average grey value of images obtained in a set time period is larger than a preset threshold value or not and judges data information. Compared with an existing Bluetooth data transmission mode, the method has an obvious advantage in power consumption when information amount is little.

Description

technical field [0001] The invention belongs to the field of electronic communication, and in particular relates to a wireless data communication method based on a smart phone with a camera. Background technique [0002] At present, the use of smart phones is becoming more and more popular, and there are many wireless communication methods based on mobile phones, such as Bluetooth, wifi, NFC and so on. Bluetooth and wifi can be used in almost all mobile phones, but these communication methods have relatively high power consumption and technical requirements for external devices; although NFC has low power consumption requirements for external devices, this method is not used in many smart phones. not support. [0003] In practical applications, many portable devices only need to transmit data to the smartphone terminal one-way, so a convenient and cheap data transmission method is very practical. Contents of the invention [0004] The technical problem to be solved by th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/114
Inventor 程德福
Owner CHENGDU EACOM TECH
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