CN104104441A - Near field communication method and near field communication system for intelligent terminals - Google Patents
Near field communication method and near field communication system for intelligent terminals Download PDFInfo
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- CN104104441A CN104104441A CN201410394181.0A CN201410394181A CN104104441A CN 104104441 A CN104104441 A CN 104104441A CN 201410394181 A CN201410394181 A CN 201410394181A CN 104104441 A CN104104441 A CN 104104441A
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Abstract
The invention relates to a near field communication method for intelligent terminals. The near field communication method comprises the following steps that: the first intelligent terminal converts a digital signal to a first optical wave signal and sends the first optical wave signal to the second intelligent terminal; the second intelligent terminal receives the first optical wave signal and converts the first optical wave signal to an electric signal, and carries out shaping and synchronous processing on the electric signal to synchronize the phase of the electric signal with the clock signal of the second intelligent terminal; the second intelligent terminal outputs a connection code, converts the connection code to a second optical wave signal, and then sends the second optical wave signal to the first intelligent terminal; the first intelligent terminal converts the second optical wave signal to an adaptation code, and judges whether the adaptation code is matched with the verification code of a local computer, if so, then the first intelligent terminal continues to send the digital signal. The invention further relates to a near field communication system. The near field communication method and the near field communication system disclosed by the invention are capable of saving product cost, improving an electromagnetic space, and realizing green wireless transmission; moreover, communication between the intelligent terminals becomes quite simple and convenient.
Description
Technical field
The present invention relates to the short distance wireless communication technology field, particularly a kind of near field communication method of intelligent terminal and near field communication system.
Background technology
Wireless Data Transmission between order the first two mobile phone or two other smart machines or signal transmission be mainly by bluetooth, Wifi is direct-connected and NFC (Near Field Communication, near-field communication) etc. mode realizes, but the place of electromagnetic radiation being had relatively high expectations at some is subject to certain use restriction.And the consideration of some smart machines based on abampere congruence factor, can not be equipped with bluetooth, Wifi and NFC module, this just causes the communication between these equipment to become very inconvenient.And, before connection, need open that catalogue is opened bluetooth layer by layer, Wifi is direct-connected and NFC function, therefore, be necessary to provide a kind of convenient and practical close range communication techniques.
Summary of the invention
Main purpose of the present invention is, for above-mentioned deficiency of the prior art, a kind of near field communication method and near field communication system of intelligent terminal are provided, both can save product cost, can improve electromagnetic space again, realize green wireless transmission, and the communication between intelligent terminal also becomes very simple and facilitates.
For achieving the above object, the present invention by the following technical solutions.
First the present invention provides a kind of near field communication method of intelligent terminal, is suitable for carrying out Near Field Communication between the first intelligent terminal and the second intelligent terminal, and described communication means comprises the following steps:
The first intelligent terminal is converted to digital signal according to the first lightwave signal of preset frequency flicker and to the second intelligent terminal transmitting;
The second intelligent terminal receives described the first lightwave signal and converts the signal of telecommunication to;
The second intelligent terminal carries out shaping and synchronous processing to the described signal of telecommunication, makes the phase place of the described signal of telecommunication and the clock signal synchronization of the second intelligent terminal;
The second intelligent terminal output one connects code, and converts to after the second lightwave signal with characteristic frequency flicker, to described the first intelligent terminal transmitting;
The first intelligent terminal is converted to adaptive code by described the second lightwave signal, and judges whether described adaptive code matches with the identifying code of the machine, if coupling enters next flow process: otherwise, process ends;
Described the first intelligent terminal continues to send described digital signal.
In above-mentioned communication means, the step that described the second intelligent terminal receives described the first lightwave signal and converts the signal of telecommunication to specifically comprises:
Described the second intelligent terminal receives after described the first lightwave signal, and described the first lightwave signal is carried out to filtration treatment, only makes the lightwave signal of particular color be converted into the described signal of telecommunication.
In above-mentioned communication means, the step that described the second intelligent terminal receives described the first lightwave signal and converts the signal of telecommunication to specifically comprises:
Described the second intelligent terminal receives described the first lightwave signal and converts thereof into after the signal of telecommunication, and the described signal of telecommunication is carried out to frequency discrimination processing, only retains the signal of telecommunication of characteristic frequency.
In above-mentioned communication means, also comprise step:
Judge whether digital switch signal of the described signal of telecommunication, if so, enter next flow process, otherwise, process ends.
In above-mentioned communication means, described the first lightwave signal and the second lightwave signal are blue light or ruddiness.
The present invention also provides a kind of near field communication system, comprises launch terminal and receiving terminal,
Described launch terminal comprises the first luminous component, and this first luminous component is converted to digital signal according to the first lightwave signal of preset frequency flicker and launches to receiving terminal;
Described receiving terminal comprises the second light receiving component, and described the second light receiving component receives described the first lightwave signal, and is converted into the signal of telecommunication;
Described receiving terminal also comprises the second central processing unit, and described the second central processing unit carries out shaping and synchronous processing to the described signal of telecommunication, makes the phase place of the described signal of telecommunication and the clock signal synchronization of described the second central processing unit;
Described receiving terminal also comprises the second luminous component, and described the second central processing unit connects code to described the second luminous component output one, and controls after second lightwave signal of described the second luminous component generation with characteristic frequency flicker, to described launch terminal transmitting;
Described launch terminal also comprises the first light receiving component and the first central processing unit, described the first light receiving component is converted to adaptive code by described the second lightwave signal, described the first central processing unit judges whether described adaptive code matches with the identifying code of the machine, if coupling, described launch terminal continues to send described digital signal, otherwise, stop sending.
In above-mentioned communication system, described receiving terminal also comprises:
Filter part, carries out filtration treatment to described the first lightwave signal, only makes the lightwave signal of particular color be converted to the described signal of telecommunication by described the second light receiving component.
In above-mentioned communication system, described receiving terminal also comprises frequency discriminator, and described frequency discriminator, for the frequency of the described signal of telecommunication is carried out to identifying processing, only retains the signal of telecommunication of characteristic frequency.
In above-mentioned communication system, described the second central processing unit, also for judging whether digital switch signal of the described signal of telecommunication, if so, exports the described signal of telecommunication to described the second central processing unit and carries out shaping and synchronous processing, otherwise, stop output.
In above-mentioned communication system, described the first lightwave signal and the second lightwave signal are blue light or ruddiness, and described launch terminal and receiving terminal are smart mobile phone, panel computer or intelligent wearing equipment.
The present invention utilizes the luminous components such as photoflash lamp of intelligent terminal (comprising launch terminal and receiving terminal) and the first-class light receiving component of shooting to carry out sending and receiving signal, because the signal vehicle between intelligent terminal is light wave, therefore, can realize green communications, can be widely used in various occasions, comprise that some have the specific occasion of strict demand to amount of electromagnetic radiation.And, utilize photoflash lamp and the first-class light receiving component of shooting and luminous component to carry out sending and receiving signal, very simple and convenient, without carrying out various settings, can use immediately, effectively improved the convenience of wireless near field communication between intelligent terminal.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the near field communication method of intelligent terminal in the embodiment of the present invention.
Fig. 2 is the schematic flow sheet of the near field communication method of intelligent terminal in another embodiment of the present invention.
Fig. 3 is the structural representation block diagram of near field communication system in the embodiment of the present invention.
The realization of the object of the invention, functional characteristics and advantage, in connection with embodiment, are described further with reference to accompanying drawing.
Embodiment
Below with reference to drawings and the specific embodiments, describe technical scheme of the present invention in detail, so as clearer, understand invention essence of the present invention intuitively.
Shown in Fig. 1, the present embodiment provides a kind of near field communication method of intelligent terminal, for between two intelligent terminals, carry out Near Field Communication, the intelligent terminal of indication of the present invention is a kind of can independently reception, process, the Portable movable smart machine transmitting, include but not limited to smart mobile phone, panel computer and intelligent watch, the intelligent wearing equipment such as intelligent glasses, on these equipment, be all combined with the first-class light receiving component of shooting, and the luminous component such as photoflash lamp or signal lamp, utilize the existing photoflash lamp of equipment itself and the first-class parts of shooting can realize wireless near field communication, and reach electromagnetic-radiation-free and easy to operate texts, and can be applied to various occasions, meet people's multiple communication requirement.
The present embodiment be take two intelligent terminals and is smart mobile phone as example, describes its technical scheme and operation principle in detail, to can understand technical spirit of the present invention clearlyer.
It is the first intelligent terminal that the present invention specifies one of them smart mobile phone, and another smart mobile phone is the second intelligent terminal, and the communication means described in the present embodiment comprises the following steps:
S100: the first intelligent terminal is converted to digital signal according to the first lightwave signal of preset frequency flicker and to the second intelligent terminal transmitting;
S200, the second intelligent terminal receive described the first lightwave signal and convert the signal of telecommunication to;
S300, the second intelligent terminal carry out shaping and synchronously process the described signal of telecommunication, make the phase place of the described signal of telecommunication and the clock signal synchronization of the second intelligent terminal;
S400, the second intelligent terminal output one connect code, and convert to after the second lightwave signal with characteristic frequency flicker, to described the first intelligent terminal transmitting;
S500, the first intelligent terminal are converted to adaptive code by the second lightwave signal, and judge whether adaptive code matches with the identifying code of the machine, if coupling enters next flow process: otherwise, process ends.
S600, the first intelligent terminal continue to send above-mentioned digital signal.
In step S100, the signal of described digital signal for needing the data of transmission or needing to transmit, these data or signal, to be used to control the drive circuit of photoflash lamp, make photoflash lamp according to predetermined frequency scintillation, thereby form the first lightwave signal and launch to the second intelligent terminal.
In step S200, the camera of the second intelligent terminal senses after above-mentioned the first lightwave signal, utilizes photoelectricity transformation principle that this first lightwave signal is converted to the signal of telecommunication, obviously, because the first lightwave signal is frequency modulation flicker, therefore, this signal of telecommunication is the level signal with certain frequency.
In step S300, the second intelligent terminal carries out shaping and synchronous processing to this signal of telecommunication, makes the phase place of this signal of telecommunication and the clock signal synchronization of the second intelligent terminal inside.
In proper communication situation, the camera of the second intelligent terminal receive except above-mentioned the first lightwave signal, also have the stray lights such as daylight, therefore, stray light need to be carried out to filtering.The step of the present embodiment filtering interfering light can be as follows:
S210: the camera of the second intelligent terminal receives after the first lightwave signal (containing stray light), and this lightwave signal is carried out to filtration treatment, only makes the light of particular color be converted into above-said current signal.In other words, this camera is only responded to the light of particular color, and the light of this color is carried out to opto-electronic conversion, obtains the useful signal of telecommunication.For example, suppose that the first lightwave signal is ruddiness, because camera is comprised of the some groups of photosensitive arrays that comprise R, G, B inductor, can be green by the G(closing in every group of photosensitive array) and B(blueness) inductor, making only has ruddiness inductor to be opened in camera, thereby only can convert ruddiness to the signal of telecommunication, the light of other color is dropped.
Certainly, also can adopt following steps to remove the signal of telecommunication that stray light produces, obtain the useful signal of telecommunication (as shown in Figure 2):
S220: the camera of the second intelligent terminal receives after above-mentioned the first lightwave signal, it is converted to the signal of telecommunication (now completely, comprising the converted noise signal of stray light), then this signal of telecommunication is carried out to frequency discrimination processing, only retain the signal of telecommunication of characteristic frequency, thereby obtain the useful signal of telecommunication.
Certainly, above-mentioned two kinds of methods are only two kinds of different execution modes of the present embodiment, and it can also have other execution mode, herein will not be exhaustive.
After obtaining the useful signal of telecommunication, need to judge whether this signal of telecommunication comprises data or the signal of required transmission, and therefore, the present embodiment is further comprising the steps of:
S250: judge whether digital switch signal of the described signal of telecommunication, if so, enter next flow process, otherwise, process ends.
This step is alleged enters next flow process and refers to and enter step S300, the signal of telecommunication is carried out to shaping and synchronous step.Above-mentioned alleged process ends refers to the communication process finishing between the first intelligent terminal and the second intelligent terminal.
Step S300 is for carrying out shaping and synchronous processing to the signal of telecommunication, the present embodiment can utilize shaping circuit and synchronous amplifying circuit to carry out shaping and synchronous processing.
Step S400 is for confirming when the second intelligent terminal data or the signal that above-said current signal is required transmission, or while meeting the data of required transmission or the host-host protocol of signal, to the first intelligent terminal feedback link code, to show the first intelligent terminal and the formal successful connection of the second intelligent terminal, can carry out formal transfer of data or signal transmission.The step of this feedback link code is as follows:
The second intelligent terminal output one connects code, and this code is electric impulse signal, to control the photoflash lamp of the second intelligent terminal, produces with the second lightwave signal of characteristic frequency flicker and to the first intelligent terminal transmitting.The flicker frequency of this second lightwave signal is not identical with the content of the first lightwave signal representative, naturally its flicker frequency is also different.
Step S500 is for verifying whether the first intelligent terminal for launching mates with the second intelligent terminal for receiving, in order to avoid at a plurality of the first intelligent terminals simultaneously when transmitting, the second intelligent terminal cannot carry out correspondingly one by one with the first intelligent terminal, and this step is specific as follows:
The first intelligent terminal is converted to adaptive code after receiving above-mentioned lightwave signal, then judge that whether this adaptation code matches with the pre-stored identifying code of the machine, if coupling, show that the first intelligent terminal and the second intelligent terminal are two smart mobile phones that need to carry out short-range communication, can transmit safely data and transmission of signal, thereby can not produce phenomenons such as " getting lines crossed ".
The present embodiment preferentially adopts blue light or ruddiness to carry out lightwave signal transmission as carrier light wave, is because the spectral region of blue light and ruddiness is less, is difficult for being interfered.
Because communicating by letter between the first intelligent terminal and the second intelligent terminal is all to transmit by light wave, therefore reduced electromagnetic radiation, make communication process environmental protection more.And, only the camera of the first intelligent terminal and the second intelligent terminal and photoflash lamp aligning can need be carried out to short-range communication, very convenient.
Shown in Fig. 3, the present invention also provides a kind of near field communication system 100, and it comprises transmitting intelligent terminal (abbreviation launch terminal) 10 and reception intelligent terminal (abbreviation receiving terminal) 20, wherein,
Launch terminal 10 comprises the first luminous component 11, and this first luminous component 11 is for being converted to digital signal according to the first lightwave signal of preset frequency flicker and to receiving terminal 20 transmittings;
Receiving terminal 20 comprises that the second light receiving component 22, the second light receiving components 22 receive the first lightwave signal, and is converted into the signal of telecommunication;
Receiving terminal 20 also comprises that 23 pairs of signals of telecommunication of the second central processing unit 23, the second central processing unit carry out shaping and synchronous processing, make the phase place of the signal of telecommunication and the clock signal synchronization of the second central processing unit 23;
Receiving terminal 20 also comprises that the second luminous component 21, the second central processing units 23 connect code to the second luminous component 21 outputs one, and controls after second lightwave signal of the second luminous component 21 generations with characteristic frequency flicker, to launch terminal 10 transmittings;
Launch terminal 10 also comprises the first light receiving component 12 and the first central processing unit 13, the first light receiving component 12 is converted to adaptive code by the second lightwave signal, whether the adaptive code of the first central processing unit 13 judgement matches with the identifying code of the machine, if coupling, launch terminal 10 continues to send digital signal, otherwise, stop sending.
The principle of the near field communication method of the operation principle of the near field communication system 100 of the present embodiment and intelligent terminal embodiment illustrated in fig. 1 is basic identical, and concrete execution step is with reference to embodiment illustrated in fig. 1, and the present embodiment repeats no more.Wherein, the launch terminal 10 of the present embodiment is equivalent to the first intelligent terminal, the first luminous component 11 is equivalent to the photoflash lamp of the first intelligent terminal, the first light receiving component 12 is equivalent to the camera of the first intelligent terminal, the first central processing unit 13 is CPU of the first intelligent terminal, mainly for the treatment of Various types of data and signal, comprise and judge that whether adaptive code that the first intelligent terminal receives matches with the pre-stored identifying code of the machine, and send digital signal etc.In like manner, the second luminous component 21 is equivalent to the photoflash lamp of the second intelligent terminal, and the second light receiving component 22 is equivalent to the camera of the second intelligent terminal, and the second central processing unit 23 is CPU of the second intelligent terminal.
In addition, the receiving terminal 20 of the present embodiment also comprises filter part 24, for the stray light of the first lightwave signal is carried out to filtration treatment, only makes the camera switching electrical signals of the received terminal 20 of lightwave signal (as ruddiness) of particular color.
The receiving terminal 20 of the present embodiment also can comprise frequency discriminator 25, or replaces above-mentioned filter part 24 with frequency discriminator 25, with the frequency of the signal of telecommunication that the first lightwave signal is converted to, carries out identifying processing, only retains the signal of telecommunication of characteristic frequency.
The second central processing unit 23 of the receiving terminal 20 of the present embodiment, also for judging whether digital switch signal of above-said current signal, if so, carries out this signal of telecommunication shaping and synchronous processing, otherwise, think that this signal of telecommunication is still noise signal, abandoned, stop output.
In addition, the first lightwave signal and second lightwave signal of the present embodiment all adopt blue light or ruddiness, and this launch terminal 10 and receiving terminal 20 can be the intelligent wearing equipment such as smart mobile phone, panel computer or intelligent watch.
In sum, the present invention utilizes the luminous components such as photoflash lamp of intelligent terminal (comprising launch terminal and receiving terminal) and the first-class light receiving component of shooting to carry out sending and receiving signal, because the signal vehicle between intelligent terminal is light wave, therefore, can realize green communications, can be widely used in various occasions, comprise that some have the specific occasion of strict demand to amount of electromagnetic radiation.And, utilize photoflash lamp and the first-class light receiving component of shooting and luminous component to carry out sending and receiving signal, very simple and convenient, without carrying out various settings, can use immediately, effectively improved the convenience of wireless near field communication between intelligent terminal.
The foregoing is only the preferred embodiments of the present invention; not thereby limit its scope of the claims; every equivalent structure or conversion of equivalent flow process that utilizes specification of the present invention and accompanying drawing content to do; directly or indirectly be used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. a near field communication method for intelligent terminal, is suitable for carrying out Near Field Communication between the first intelligent terminal and the second intelligent terminal, it is characterized in that, described communication means comprises the following steps:
S100, the first intelligent terminal are converted to digital signal according to the first lightwave signal of preset frequency flicker and to the second intelligent terminal transmitting;
S200, the second intelligent terminal receive described the first lightwave signal and convert the signal of telecommunication to;
S300, the second intelligent terminal carry out shaping and synchronously process the described signal of telecommunication, make the phase place of the described signal of telecommunication and the clock signal synchronization of the second intelligent terminal;
S400, the second intelligent terminal output one connect code, and convert to after the second lightwave signal with characteristic frequency flicker, to described the first intelligent terminal transmitting;
S500, the first intelligent terminal are converted to adaptive code by described the second lightwave signal, and judge whether described adaptive code matches with the identifying code of the machine, if coupling enters next flow process: otherwise, process ends;
S600, described the first intelligent terminal continue to send described digital signal.
2. near field communication method as claimed in claim 1, is characterized in that, described step S200 specifically comprises the following steps:
S210, described the second intelligent terminal receive after described the first lightwave signal, and described the first lightwave signal is carried out to filtration treatment, only make the lightwave signal of particular color be converted into the described signal of telecommunication.
3. near field communication method as claimed in claim 1, is characterized in that, described step 200 specifically comprises the following steps:
S220, described the second intelligent terminal receive described the first lightwave signal and convert thereof into after the signal of telecommunication, and the described signal of telecommunication is carried out to frequency discrimination processing, only retain the signal of telecommunication of characteristic frequency.
4. near field communication method as claimed in claim 1, is characterized in that, before step S300, also comprises step:
S250, judge whether digital switch signal of the described signal of telecommunication, if so, enter next flow process, otherwise, process ends.
5. near field communication method as claimed in claim 1, is characterized in that, described the first lightwave signal and the second lightwave signal are blue light or ruddiness.
6. a near field communication system, comprises launch terminal and receiving terminal, it is characterized in that:
Described launch terminal comprises the first luminous component, and this first luminous component is converted to digital signal according to the first lightwave signal of preset frequency flicker and launches to receiving terminal;
Described receiving terminal comprises the second light receiving component, and described the second light receiving component receives described the first lightwave signal, and is converted into the signal of telecommunication;
Described receiving terminal also comprises the second central processing unit, and described the second central processing unit carries out shaping and synchronous processing to the described signal of telecommunication, makes the phase place of the described signal of telecommunication and the clock signal synchronization of described the second central processing unit;
Described receiving terminal also comprises the second luminous component, and described the second central processing unit connects code to described the second luminous component output one, and controls after second lightwave signal of described the second luminous component generation with characteristic frequency flicker, to described launch terminal transmitting;
Described launch terminal also comprises the first light receiving component and the first central processing unit, described the first light receiving component is converted to adaptive code by described the second lightwave signal, described the first central processing unit judges whether described adaptive code matches with the identifying code of the machine, if coupling, described launch terminal continues to send described digital signal, otherwise, stop sending.
7. near field communication system as claimed in claim 6, is characterized in that, described receiving terminal also comprises:
Filter part, carries out filtration treatment to described the first lightwave signal, only makes the lightwave signal of particular color be converted to the described signal of telecommunication by described the second light receiving component.
8. near field communication system as claimed in claim 6, is characterized in that, described receiving terminal also comprises frequency discriminator, and described frequency discriminator, for the frequency of the described signal of telecommunication is carried out to identifying processing, only retains the signal of telecommunication of characteristic frequency.
9. near field communication system as claimed in claim 6, is characterized in that, described the second central processing unit is also for judging whether digital switch signal of the described signal of telecommunication, if, export the described signal of telecommunication to described the second central processing unit and carry out shaping and synchronous processing, otherwise, output stopped.
10. near field communication system as claimed in claim 6, is characterized in that, described the first lightwave signal and the second lightwave signal are blue light or ruddiness, and described launch terminal and receiving terminal are smart mobile phone, panel computer or intelligent wearing equipment.
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| CN201410394181.0A CN104104441A (en) | 2014-08-12 | 2014-08-12 | Near field communication method and near field communication system for intelligent terminals |
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| CN107113057A (en) * | 2014-12-16 | 2017-08-29 | 微软技术许可有限责任公司 | Optical communication with optical sensor |
| CN107682083A (en) * | 2017-11-01 | 2018-02-09 | 珠海市魅族科技有限公司 | A kind of short distance document transmission method and device |
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| CN114647090A (en) * | 2022-05-19 | 2022-06-21 | 江苏省现代企业信息化应用支撑软件工程技术研发中心 | Multi-sense organ extensible AR interaction device |
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