CN105813010A - NFC-based connection establishment method and system, and NFC devices - Google Patents
NFC-based connection establishment method and system, and NFC devices Download PDFInfo
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- CN105813010A CN105813010A CN201610298782.0A CN201610298782A CN105813010A CN 105813010 A CN105813010 A CN 105813010A CN 201610298782 A CN201610298782 A CN 201610298782A CN 105813010 A CN105813010 A CN 105813010A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/14—Direct-mode setup
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Abstract
The invention belongs to the technical field of wireless communication, and discloses an NFC-based connection establishment method and system, and NFC devices. The NFC-based connection establishment method comprises the following steps: a first NFC device is randomly set as a master device or a slave device within the duration of a random time length T; a second NFC device is randomly set as the master device or the slave device within the duration of a random time length T'; when one of the first NFC device and the second NFC device serves as the master device, and the other serves as the slave device, NFC connection is established between the master device and the slave device. The first NFC device is randomly set as the master device or the slave device within the duration of the corresponding time length, and the second NFC device is also randomly set as the master device or the slave device within the duration of the corresponding time length; when one of the two NFC devices serves as the master device and the other serves as the slave device, the NFC connection is established between the master device and the slave device. Therefore, the NFC connection can be conveniently and quickly established between the first NFC device and the second NFC device; when information needs to be exchanged for multiple times, information exchange can be achieved without multiple times of connection switching.
Description
Technical field
The present invention relates to wireless communication field, particularly relate to a kind of NFC device, set up the method and system connected based on NFC.
Background technology
NFC (NearFieldCommunication, near-field communication) is expanded in a lot of places to be applied, and one of wherein common application is exactly phase interchangeable information, for instance business card exchange etc..But this exchange information of NFC has very strong master slave relation feature, namely actively information can only be received from the other side, it is impossible to actively send information to the other side.Such as both sides need when exchanging information to select A to read the information from equipment B as main equipment, then it is switching master-slave equipment state again, B reads the information from device A as main equipment, but if A and B is all main equipment or from equipment, then just cannot set up NFC between A and B and connect, can not phase interchangeable information, if additionally, need between A and B repeatedly to exchange information, then accordingly, need between A and B repeatedly to connect and repeatedly switch, phase interchangeable information could be realized.
Summary of the invention
For solving relevant issues, it is an object of the invention to provide a kind of method, system and NFC device set up based on NFC and connect, to facilitate equipment room quickly to set up NFC connection, phase interchangeable information.
The present invention is by the following technical solutions:
First aspect, it is a kind of based on the NFC method setting up connection that the embodiment of the present invention provides, including:
First NFC device, within the time period of random duration T, is randomly set to main equipment or from equipment；Second NFC device, within the time period of random duration T ', is randomly set to main equipment or from equipment；
When, in described first NFC device and the second NFC device, one of them is main equipment, when another is from equipment, main equipment and from equipment set up NFC connect.
Second aspect, it is a kind of based on the NFC method setting up connection that the embodiment of the present invention provides, including:
This NFC device, within the time period of random duration T, is randomly set to main equipment or from equipment；
When, in described NFC device and another NFC device, one of them be main equipment, when another is from equipment, main equipment and set up NFC connection from equipment.
The third aspect, the embodiment of the present invention is the corresponding a kind of system setting up connection based on NFC provided also, including:
It is randomly provided module, for the first NFC device within the time period of random duration T, is randomly set to main equipment or from equipment；Second NFC device, within the time period of random duration T ', is randomly set to main equipment or from equipment；
Set up NFC link block, for when, in described first NFC device and the second NFC device, one of them be main equipment, when another is from equipment, main equipment and set up NFC connection from equipment.
Fourth aspect, the embodiment of the present invention is the corresponding a kind of NFC device provided also, including:
It is randomly provided module, for this NFC device within the time period of random duration T, is randomly set to main equipment or from equipment；
Setting up NFC link block, in described NFC device and another NFC device, one of them be main equipment, when another is from equipment, and main equipment and set up NFC connection from equipment.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought:
In the technical program, first NFC device and the second NFC device are by, in each self-corresponding random duration period, being randomly set to main equipment or from equipment, when in the first NFC device and the second NFC device, one is that main equipment one is for during from equipment, then setting up NFC and connect；The technical program can make two NFC device set up NFC connection quickly and easily, and needs repeatedly not need repeatedly to connect switching during exchange information, can realize phase interchangeable information.
Accompanying drawing explanation
Fig. 1 sets up, based on NFC, the method flow schematic diagram connected for what the embodiment of the present invention one provided.
Fig. 2 sets up, based on NFC, the method flow schematic diagram connected for what the embodiment of the present invention two provided.
Fig. 3 sets up, based on NFC, the method flow schematic diagram connected for what the embodiment of the present invention three provided.
Fig. 4 sets up, based on NFC, the method flow schematic diagram connected for what the embodiment of the present invention four provided.
Fig. 5 sets up, based on NFC, the system architecture schematic diagram connected for what the embodiment of the present invention five provided.
Fig. 6 sets up, based on NFC, the system architecture schematic diagram connected for what the embodiment of the present invention six provided.
The configuration diagram of a kind of NFC device that Fig. 7 provides for the embodiment of the present invention seven.
The configuration diagram of a kind of NFC device that Fig. 8 provides for the embodiment of the present invention eight.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is to be understood that specific embodiment described herein is only used for explaining the present invention, but not limitation of the invention.It addition, for the ease of describing, accompanying drawing illustrate only part related to the present invention but not full content.
Embodiment one
Refer to Fig. 1, it is the method flow schematic diagram setting up connection based on NFC that the embodiment of the present invention one provides.The executive agent of the method for the present embodiment is the first NFC device and the second NFC device, can be applicable to the first NFC device and the second NFC device needs quickly to set up the NFC sight connecting, exchanging information.
The method connected should be set up, it is possible to comprise the steps: based on NFC
S110: the first NFC device, in random duration T, is randomly set to main equipment or from equipment；Second NFC device, in random duration T ', is randomly set to main equipment or from equipment.
Exemplary, the first NFC device, within the time period of random duration T, is randomly set to or main equipment or from equipment；In like manner the second NFC device is within the time period of random duration T ', is randomly set to main equipment or from equipment.The equipment supporting NFC can exchange data under actively or passively pattern, in the passive mode, starts NFC and provides the equipment of radio-frequency field to be called main equipment, and another startup NFC of correspondence does not produce the equipment of radio-frequency field and is called from equipment.Main equipment is only on one's own initiative from from equipment receiving information, and can not send information to main equipment on one's own initiative from equipment.
In the present embodiment, random duration T can value be T=n*t, random duration T ' can value be T '=n ' * t, wherein n and n ' is the random integers in preset range, such as n and n ' is 1,2 ... the random integers between 9,10, t can set up the NFC shortest time connected between the first NFC device and the second NFC device, in other embodiments, random duration T and random duration T ' could be arranged to other values more than shortest time t.
S120: when, in the first NFC device and the second NFC device, one of them is main equipment, when another is from equipment, main equipment and from equipment set up NFC connect.
Exemplary, when at a time, it is main equipment or from equipment, namely one of them is main equipment when the first NFC device is different with the second NFC device, when another is from equipment, then the two NFC device is successfully established NFC and connects.
To sum up, the method that the embodiment of the present invention provides, by within the time period of different random duration, first NFC device and the second NFC device are all randomly set to main equipment or from equipment, when in two NFC device one be main equipment another for from equipment time, set up NFC between two NFC device to connect, two NFC device can be made to set up NFC quickly and easily and connect.
Embodiment two
Refer to Fig. 2, it is the method flow schematic diagram setting up connection based on NFC that the embodiment of the present invention two provides.The present embodiment differs primarily in that with embodiment one, before S210, add the content of the NFC being respectively started in the first NFC device and the second NFC device, after S210 and between S220, it is not set up NFC in this time period connects if added, then, within the time period of next random duration, be randomly set to main equipment or from equipment, or the content of switching master-slave equipment state, and after S220, add main equipment and complete the content of information exchange from equipment.
The method connected should be set up, it is possible to comprise the steps: based on NFC
S201: be respectively started the NFC on the first NFC device and the 2nd NFC.
Exemplary, when the first NFC device and the second NFC device need to set up NFC connection exchange information, need first the NFC function in two NFC device to be opened.
S210: the first NFC device, in random duration T, is randomly set to main equipment or from equipment；Second NFC device, in random duration T ', is randomly set to main equipment or from equipment.
S211: connect if being not set up NFC in this time period, then, within the time period of next random duration, be randomly set to main equipment or from equipment, or switching master-slave equipment state.
Exemplary, if the first NFC device determines that being not set up NFC in this time period connects, then within the time period of the random duration T of the next one, it is randomly set to main equipment or from equipment；If or the first NFC device determine be not set up in this time period NFC connect, then within the time period of the random duration T of the next one, switch master-slave equipment state.
In like manner, if the second NFC device determines that being not set up NFC in this time period connects, then, within the time period of the next one random duration T ', be randomly set to main equipment or from equipment；If or the second NFC device determine be not set up in this time period NFC connect, then within the time period of the next one random duration T ', switch master-slave equipment state.
Wherein, switching master-slave equipment state is particularly as follows: NFC device is switched to from equipment by main equipment, or is switched to main equipment by from equipment.
S220: when, in the first NFC device and the second NFC device, one of them is main equipment, when another is from equipment, main equipment and from equipment set up NFC connect.
S230: main equipment and from equipment complete information exchange.
Exemplary, main equipment has read after the information of equipment, switches to from equipment, and sends switching master-slave equipment status information to from equipment；After receiving switching master-slave equipment status information from equipment, switch to main equipment, and read the information from equipment, so far complete the information exchange between two NFC device.Wherein, all there is end mark at the end of above-mentioned information, and main equipment reads the information from equipment, when reading the end mark at information end place, then it represents that read this information complete.
To sum up, the method that the present embodiment provides, first NFC device and the second NFC device are before carrying out NFC connection, each open NFC function, to ensure that two NFC device can be set up NFC and connect, if two NFC device do not set up NFC connection within this time period, then in subsequent time period, two NFC device are randomly set to main equipment or all again from equipment, or switching master-slave equipment state, until when in two NFC device, one be main equipment another for from equipment time, main equipment and from equipment set up NFC connect, complete information exchange, this method can ensure that two NFC device can quickly be set up NFC and connect, complete information exchange.
The executive agent based on the NFC method setting up connection of above-described embodiment one and embodiment two offer is the first NFC device and the second NFC device, and the executive agent based on the NFC method setting up connection that following example three and embodiment four provide is single NFC device.
Embodiment three
Refer to Fig. 3, it is the method flow schematic diagram setting up connection based on NFC that the embodiment of the present invention three provides.What technical scheme correspondence above-described embodiment one that the present embodiment provides provided sets up the method connected, the detail content of the not detailed description of the present embodiment based on NFC, it is possible to reference to above-described embodiment one.
The method connected should be set up, it is possible to comprise the steps: based on NFC
S310: this NFC device, within the time period of random duration T, is randomly set to main equipment or from equipment.
Exemplary, supporting that the equipment of NFC can exchange data under actively or passively pattern, in the passive mode, start NFC and provide the equipment of radio-frequency field to be called main equipment, another startup NFC of correspondence does not produce the equipment of radio-frequency field and is called from equipment.Main equipment is only on one's own initiative from from equipment receiving information, and can not send information to main equipment on one's own initiative from equipment.
In the present embodiment, random duration T can value be T=n*t, wherein n is the random integers in preset range, such as n is 1,2 ... the random integers between 9,10, t can set up the NFC shortest time connected between this NFC device and another NFC device, in other embodiments, random duration T could be arranged to other values more than shortest time t.
S320: when, in this NFC device and another NFC device, one of them be main equipment, when another is from equipment, main equipment and set up NFC connection from equipment.
Exemplary, when at a time, it is main equipment or from equipment, namely one of them is main equipment when this NFC device is different with another equipment, when another is from equipment, then this NFC device is set up NFC with another NFC device and is connected.
To sum up, the method that the embodiment of the present invention provides, by within the time period of different random duration, this NFC device is randomly set to main equipment or from equipment, when in this NFC device with another NFC device, one be main equipment another for from equipment time, set up between two NFC device NFC connect, can make two NFC device set up conveniently and efficiently NFC connect.
Embodiment four
Refer to Fig. 4, it is the method flow schematic diagram setting up connection based on NFC that the embodiment of the present invention four provides.The present embodiment differs primarily in that with embodiment three, within this time period, NFC connection it is not set up if added after S410 and between S420, then within the time period of the random duration of the next one, it is randomly set to main equipment or from equipment, or the content of switching master-slave equipment state, and after S420, add main equipment and complete the content of information exchange from equipment.
The method connected should be set up, it is possible to comprise the steps: based on NFC
S410: this NFC device, within the time period of random duration T, is randomly set to main equipment or from equipment.
Exemplary, NFC function, before performing this step, is opened, to guarantee that this NFC device can be set up NFC with another NFC device and be connected by this NFC device.
S411: connect if being not set up NFC within this time period, then, within the time period of the random duration of the next one, be randomly set to main equipment or from equipment, or switching master-slave equipment state
Exemplary, if this NFC device determines that setting up NFC with another NFC device within this time period is connected, then within the time period of the random duration T of the next one, it is randomly set to main equipment or from equipment；If or this NFC device determines that within this time period not setting up NFC with another NFC device is connected, then within the time period of the random duration T of the next one, switching master-slave equipment state.
Wherein, switching master-slave equipment state is particularly as follows: NFC device is switched to from equipment by main equipment, or is switched to main equipment by from equipment.
S420: when, in this NFC device and another NFC device, one of them be main equipment, when another is from equipment, main equipment and set up NFC connection from equipment.
S430: main equipment and from equipment complete information exchange.
Exemplary, main equipment has read after the information of equipment, switches to from equipment, and sends switching master-slave equipment status information to from equipment；After receiving switching master-slave equipment status information from equipment, switch to main equipment, and read the information from equipment, so far complete the information exchange between two NFC device.Wherein, all there is end mark at the end of above-mentioned information, and main equipment reads the information from equipment, when reading the end mark at information end place, then it represents that read this information complete.
To sum up, the method that the embodiment of the present invention provides, if this NFC device does not set up NFC with another NFC device and is connected within this time period, then in subsequent time period, this NFC device is randomly set to main equipment or again from equipment, or switching master-slave equipment state, until when in this NFC device and another NFC device, one be main equipment another for during from equipment, main equipment and set up from equipment that NFC connects, the information that completes exchanges.
It it is below the embodiment setting up system embodiment and a kind of NFC device connected based on NFC of the embodiment of the present invention.The system set up, based on NFC, the method connected, set up connection based on NFC of the embodiment of the present invention and a kind of NFC device belong to a total inventive concept, the detail content of not detailed description in the system embodiment and a kind of NFC device embodiment that connect is being set up, it is possible to reference to the above-mentioned embodiment of the method set up based on NFC and connect based on NFC.
Embodiment five
Refer to Fig. 5, it is the system architecture schematic diagram setting up connection based on NFC that the embodiment of the present invention five provides.The system connected should be set up, it is possible to include following content based on NFC:
It is randomly provided module 510 and sets up NFC link block 520.
It is randomly provided module 510, for the first NFC device within the time period of random duration T, is randomly set to main equipment or from equipment；Second NFC device, within the time period of random duration T ', is randomly set to main equipment or from equipment.
Setting up NFC link block 520, in the first NFC device and the second NFC device, one of them be main equipment, when another is from equipment, and main equipment and set up NFC connection from equipment.
To sum up, first NFC device and the second NFC device are all within the time period of random duration, it is randomly set to main equipment or from equipment, when in two NFC device one be main equipment another for from equipment time, set up NFC between two NFC device to connect, two NFC device can be made to set up NFC quickly and easily and connect.
Embodiment six
Refer to Fig. 6, it is the system architecture schematic diagram setting up connection based on NFC that the embodiment of the present invention six provides.The present embodiment, on the basis of embodiment five, adds startup module 601, first determines module 611, second determines module 612 and read module 630.Wherein:
Start module 601, for starting the NFC in the first NFC device；Start the NFC in the second NFC device.
First determines module 611, if determining that for the first NFC device being not set up NFC in this time period connects, then, within the time period of the random duration T of the next one, be randomly set to main equipment or from equipment；If or determining that for the first NFC device being not set up NFC in this time period connects, then, within the time period of the random duration T of the next one, switch master-slave equipment state.
Second determines module 612, if determining that for the second NFC device being not set up NFC in this time period connects, then, within the time period of the next one random duration T ', be randomly set to main equipment or from equipment；If or determining that for the second NFC device being not set up NFC in this time period connects, then, within the time period of the next one random duration T ', switch master-slave equipment state.
Read module 630, has read the information from equipment for main equipment, switches to from equipment, sends switching master-slave equipment status information to from equipment；Receive described switching master-slave equipment status information from equipment, switch to main equipment, read the information from equipment.
To sum up, first NFC device and the second NFC device each open NFC function, main equipment it is randomly set to or from equipment within the time period of random duration, if two NFC device do not set up NFC connection within this time period, then within the next time period, two NFC device are randomly set to main equipment or again from equipment, or switching master-slave equipment state, until when one of them NFC device be main equipment and another NFC device for during from equipment, main equipment and set up NFC from equipment and connect, complete information exchange.
Embodiment seven
Refer to Fig. 7, it is the configuration diagram of a kind of NFC device that the embodiment of the present invention seven provides.A kind of NFC device, it is possible to include following content:
It is randomly provided module 710, for this NFC device within the time period of random duration T, is randomly set to main equipment or from equipment.
Setting up NFC link block 720, in this NFC device and another NFC device, one of them be main equipment, when another is from equipment, and main equipment and set up NFC connection from equipment.
To sum up, this NFC device is within the time period of random duration T, it is randomly set to main equipment or from equipment, when in this NFC device and another NFC device, one of them is when for main equipment, another is from equipment, this NFC device and another NFC device are set up NFC and are connected, and this NFC device can be made to set up NFC conveniently and efficiently with another NFC device and be connected.
Embodiment eight
Refer to Fig. 8, it is the configuration diagram of a kind of NFC device that the embodiment of the present invention eight provides.The present embodiment, on the basis of embodiment seven, adds and determines module 811 and read module 830.Wherein:
Determine module 811, if determining that for this NFC device being not set up NFC in this time period connects, then, within the time period of the random duration T of the next one, be randomly set to main equipment or from equipment；If or determining that for this NFC device being not set up NFC in this time period connects, then, within the time period of the random duration T of the next one, switch master-slave equipment state.
Read module 830, has read the information from equipment for main equipment, switches to from equipment, sends switching master-slave equipment status information to from equipment；Receive switching master-slave equipment status information from equipment, switch to main equipment, read the information from equipment.
To sum up, this NFC device is within the time period of this random duration, it is randomly set to main equipment or from equipment, connect if it is determined that this NFC device does not set up NFC within the time period of this random duration, within the time period of next random duration T, then again it is randomly set to main equipment or from equipment, or switching master-slave equipment state, until in this NFC device and another NFC device, one of them NFC device be main equipment and another NFC device for during from equipment, main equipment and set up NFC from equipment and connect, complete information exchange.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, to those skilled in the art, the present invention can have various change and change in detailed description of the invention.Any amendment of making within all spirit in the present invention and principle, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (12)
1. set up the method connected based on NFC for one kind, it is characterised in that including:
First NFC device, within the time period of random duration T, is randomly set to main equipment or from equipment；Second NFC device, within the time period of random duration T ', is randomly set to main equipment or from equipment；
When, in described first NFC device and the second NFC device, one of them is main equipment, when another is from equipment, main equipment and from equipment set up NFC connect.
2. the method for claim 1, it is characterised in that described main equipment and set up from equipment NFC connect before, also include:
If described first NFC device determines that being not set up NFC in this time period connects, then, within the time period of the random duration T of the next one, be randomly set to main equipment or from equipment；Or
If described first NFC device determines that being not set up NFC in this time period connects, then, within the time period of the random duration T of the next one, switch master-slave equipment state.
3. the method for claim 1, it is characterised in that described main equipment and set up from equipment NFC connect before, also include:
If described second NFC device determines that being not set up NFC in this time period connects, then, within the time period of the next one random duration T ', be randomly set to main equipment or from equipment；Or
If described second NFC device determines that being not set up NFC in this time period connects, then, within the time period of the next one random duration T ', switch master-slave equipment state.
4. the method for claim 1, it is characterised in that described random duration T value is T=n*t, described random duration T ' value is T '=n ' * t；
Wherein, n and n ' is the random integers in preset range, and t is the shortest time that described first NFC device and described second NFC device can set up NFC connection.
5. the method for claim 1, it is characterised in that described main equipment and from equipment set up NFC connect after, also include:
Main equipment has read the information from equipment, switches to from equipment, sends switching master-slave equipment status information to from equipment；
Receive described switching master-slave equipment status information from equipment, switch to main equipment, read the information from equipment.
6. the method for claim 1, it is characterised in that in described first NFC device within the time period of random duration T, is randomly set to main equipment or from before equipment, also including:
Start the NFC in described first NFC device；
In described second NFC device within the time period of random duration T ', it is randomly set to main equipment or from before equipment, also including:
Start the NFC in described second NFC device.
7. set up the method connected based on NFC for one kind, it is characterised in that including:
This NFC device, within the time period of random duration T, is randomly set to main equipment or from equipment；
When, in described NFC device and another NFC device, one of them be main equipment, when another is from equipment, main equipment and set up NFC connection from equipment.
8. method as claimed in claim 7, it is characterised in that at described main equipment with set up before NFC connects from equipment, also includes:
If described NFC device determines that being not set up NFC in this time period connects, then within the time period of the random duration T of the next one, it is randomly set to main equipment or from equipment；Or
If described NFC device determines that being not set up NFC in this time period connects, then, within the time period of the random duration T of the next one, switch master-slave equipment state；
Described main equipment and set up from equipment NFC connect after, also include:
Main equipment has read the information from equipment, switches to from equipment, sends switching master-slave equipment status information to from equipment；
Receive described switching master-slave equipment status information from equipment, switch to main equipment, read the information from equipment.
9. set up the system connected based on NFC for one kind, it is characterised in that including:
It is randomly provided module, for the first NFC device within the time period of random duration T, is randomly set to main equipment or from equipment；Second NFC device, within the time period of random duration T ', is randomly set to main equipment or from equipment；
Set up NFC link block, for when, in described first NFC device and the second NFC device, one of them be main equipment, when another is from equipment, main equipment and set up NFC connection from equipment.
10. system as claimed in claim 9, it is characterised in that also include:
First determines module, if determining that for described first NFC device being not set up NFC in this time period connects, then, within the time period of the random duration T of the next one, be randomly set to main equipment or from equipment；Or
If determining that for described first NFC device being not set up NFC in this time period connects, then, within the time period of the random duration T of the next one, switch master-slave equipment state；
Second determines module, if determining that for described second NFC device being not set up NFC in this time period connects, then, within the time period of the next one random duration T ', be randomly set to main equipment or from equipment；Or
If determining that for described second NFC device being not set up NFC in this time period connects, then, within the time period of the next one random duration T ', switch master-slave equipment state；
Read module, has read the information from equipment for main equipment, switches to from equipment, sends switching master-slave equipment status information to from equipment；Receive described switching master-slave equipment status information from equipment, switch to main equipment, read the information from equipment；
Start module, for starting the NFC in described first NFC device；Start the NFC in described second NFC device.
11. a NFC device, it is characterised in that including:
It is randomly provided module, for this NFC device within the time period of random duration T, is randomly set to main equipment or from equipment；
Setting up NFC link block, in described NFC device and another NFC device, one of them be main equipment, when another is from equipment, and main equipment and set up NFC connection from equipment.
12. NFC device as claimed in claim 11, it is characterised in that also include:
Determining module, if determining that for described NFC device being not set up NFC in this time period connects, then within the time period of the random duration T of the next one, being randomly set to main equipment or from equipment；Or
If determining that for described NFC device being not set up NFC in this time period connects, then, within the time period of the random duration T of the next one, switch master-slave equipment state；
Read module, has read the information from equipment for main equipment, switches to from equipment, sends switching master-slave equipment status information to from equipment；Receive described switching master-slave equipment status information from equipment, switch to main equipment, read the information from equipment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610298782.0A CN105813010B (en) | 2016-05-05 | 2016-05-05 | The method, system and NFC device of connection are established based on NFC |
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| CN201610298782.0A CN105813010B (en) | 2016-05-05 | 2016-05-05 | The method, system and NFC device of connection are established based on NFC |
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| CN105813010B CN105813010B (en) | 2019-07-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018095084A1 (en) * | 2016-11-23 | 2018-05-31 | Zhejiang Dahua Technology Co., Ltd. | System and method for establishing connection between devices |
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| Publication number | Publication date |
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| CN105813010B (en) | 2019-07-05 |
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