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A near-field communication method, device, and computer-readable storage medium
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A near-field communication and address storage technology, which is applied in the field of communication, can solve problems such as low data transmission efficiency, prone to abnormal data transmission, and unstable NFC card connection, so as to improve efficiency, realize data communication connection management, and improve stability Effect
Active Publication Date: 2021-09-03
珠海极海半导体有限公司
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And because the communication protocol of NFC technology is simple and the characteristics of non-contact communication, when the mobile terminal with NFC carries out data transmission to NFC card, the data communication connection between this mobile terminal and the current NFC card will be disconnected at any time, and The NFC card connected to the mobile terminal for data communication can be replaced at will, and the connection between the mobile terminal and the NFC card for data communication with it is unstable. When the data transmitted by the mobile terminal for near-field communication and the NFC card is relatively large, data transmission is prone to occur. Abnormal, low data transfer efficiency
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example 1
[0095] Figure 4 An example flow diagram of a near field communication method provided by an embodiment of the present invention. see Figure 4 , the NFC methods in this example include:
[0096] Step 10: The NFC card reader polls the NFC card ID that is close to the bottom layer to determine whether there is a close NFC card ID. When an NFC card is close to the NFC card reader, save the current close NFC card ID.
[0097] Step 20: Judging whether the ID number of the current close card is the same as the ID number of the current transaction operation card (i.e. the NFC card currently executed by the NFC reader), if it is the same, then perform step 30; if not, then perform step 40;
[0098] Step 30: Polling a small data block of the file in the read-write file queue, and judging whether the read-write file NFC card is interrupted, if interrupted, then re-execute step 10; if not interrupted, then execute step 50;
[0099] Step 40: Determine whether the current business oper...
example 2
[0103] Figure 5 Another example flowchart of the near field communication method provided by the embodiment of the present invention. see Figure 5 , the NFC methods in this example include:
[0104] Step 1: Obtain the card's basic information and input and output streams. Determine whether the storage space is in a standardized format, if not, format the NFC card storage space, including the boot area, storage page area, file description area and file data area; if yes, perform step 2;
[0105] Step 2: Create a card object and a read-write object. The upper layer requests to monitor the read-write file, and sets the upper-layer buffer read-write file list, and then judges whether to perform a read operation or a write operation. If the read operation is performed, perform step 3; perform a write operation , then go to step 7;
[0106] Step 3: Obtain the initial storage page of the file according to the file description;
[0107] Step 4: Read the file data corresponding ...
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Abstract
Embodiments of the present invention provide a near-field communication method, device, and computer-readable storage medium, which relate to the technical field of communication. On the one hand, the embodiment of the present invention obtains the basic information of the first NFC card, and the first NFC card is an NFC card within a specified range from the NFC reader; thus, according to the basic information of the first NFC card information, to determine whether the first NFC card is an NFC card for the NFC reader to perform operations; if it is determined that the first NFC card is an NFC card for the NFC reader to perform operations, obtain the first The data of the NFC card; furthermore, according to the basic information and the data, perform a data read operation or write data operation on the first NFC card. Therefore, the technical solutions provided by the embodiments of the present invention can improve the stability of the data communication connection and improve the efficiency of data transmission.
Description
【Technical field】 [0001] The present invention relates to the field of communication technology, in particular to a near field communication method, device and computer-readable storage medium. 【Background technique】 [0002] Near Field Communication (NFC, Near Field Communication) is a short-distance communication technology that combines non-contact radio frequencyidentification technology and wireless technology. In recent years, with the development of NFC technology, many mobile terminals have integrated NFC functions. , the mobile terminal can identify and interact with compatible devices within a short distance through NFC technology, so that it can quickly realize identity recognition, mobile payment, information interaction and other operations. [0003] The communication transmission speed of NFC technology is dozens of bits per second. If two devices that perform near-field communication transmit large data capacity, the communication time of the two devices that...
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