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Method, system and nfc device for establishing connection based on nfc

A technology for establishing connections and devices. It is applied in connection management, wireless communication, electrical components, etc., and can solve problems such as inability to send information to the other party, inability to exchange information with each other, and inability to establish NFC connections.

Active Publication Date: 2019-07-05
GUANGDONG XIAOTIANCAI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this exchange of information in NFC has a strong master-slave relationship, that is, it can only actively receive information from the other party, and cannot actively send information to the other party.
For example, when the two parties exchange information, they need to select A as the master device to read the information of the slave device B, and then switch the state of the master-slave device, B as the master device to read the information of the slave device A, but if A and B are both master devices or From the device, the NFC connection cannot be established between A and B, and information cannot be exchanged with each other. In addition, if information needs to be exchanged multiple times between A and B, correspondingly, multiple connections and multiple switches between A and B are required. , in order to exchange information with each other

Method used

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  • Method, system and nfc device for establishing connection based on nfc
  • Method, system and nfc device for establishing connection based on nfc
  • Method, system and nfc device for establishing connection based on nfc

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Please refer to figure 1 , which is a schematic flowchart of a method for establishing a connection based on NFC provided in Embodiment 1 of the present invention. The method of this embodiment is executed by the first NFC device and the second NFC device, and can be applied to a scenario where the first NFC device and the second NFC device need to quickly establish an NFC connection and exchange information.

[0030] The method for establishing a connection based on NFC may include the following steps:

[0031] S110: The first NFC device is randomly set as a master device or a slave device within a random time period T; the second NFC device is randomly set as a master device or a slave device within a random time period T′.

[0032] Exemplarily, the first NFC device is randomly set as either a master device or a slave device during a random time period T; similarly, the second NFC device is randomly set as a master device or a slave device during a random time period...

Embodiment 2

[0038] Please refer to figure 2 , which is a schematic flowchart of a method for establishing a connection based on NFC provided in Embodiment 2 of the present invention. The main difference between this embodiment and Embodiment 1 is that before S210, the content of starting the NFC on the first NFC device and the second NFC device respectively is added, after S210 and between S220, if If the NFC connection is not established, then in the next random period of time, randomly set the master device or the slave device, or switch the content of the master-slave device state, and add the content of the master device and the slave device completing the information exchange after S220.

[0039] The method for establishing a connection based on NFC may include the following steps:

[0040] S201: Start NFC on the first NFC device and the second NFC respectively.

[0041] Exemplarily, when the first NFC device and the second NFC device need to establish an NFC connection to exchang...

Embodiment 3

[0053] Please refer to image 3 , which is a schematic flowchart of a method for establishing a connection based on NFC provided in Embodiment 3 of the present invention. The technical solution provided in this embodiment corresponds to the method for establishing a connection based on NFC provided in the first embodiment above. For details not described in detail in this embodiment, refer to the first embodiment above.

[0054] The method for establishing a connection based on NFC may include the following steps:

[0055] S310: The NFC device is randomly set as a master device or a slave device within a random time period T.

[0056] Exemplarily, devices supporting NFC can exchange data in active or passive mode. In passive mode, the device that starts NFC and provides a radio frequency field is called a master device, and the corresponding device that starts NFC and does not generate a radio frequency field is called a master device. for the slave device. The master devic...

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PUM

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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 [0001] The invention relates to the field of wireless communication, in particular to an NFC device, a method and a system for establishing a connection based on the NFC. Background technique [0002] NFC (Near Field Communication, Near Field Communication) has been popularized and applied in many places, and one of the common applications is to exchange information with each other, such as exchanging business cards. However, this exchange of information in NFC has a strong master-slave relationship, that is, it can only actively receive information from the other party, and cannot actively send information to the other party. For example, when the two parties exchange information, they need to select A as the master device to read the information of the slave device B, and then switch the state of the master-slave device, B as the master device to read the information of the slave device A, but if A and B are both master devices or From the device, the NFC ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/80H04W76/10
CPCH04W4/80H04W76/14
Inventor 王强
Owner GUANGDONG XIAOTIANCAI TECH CO LTD