Implementation method for supporting dual protocols by utilizing RFID chip

An implementation method and dual-protocol technology, applied in the field of radio frequency communication, can solve the problem that the chip does not have a communication protocol, etc., and achieve the effect of improving practical functions

Active Publication Date: 2015-06-03
SHANGHAI FEIJU MICROELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its implementation is that the chip supports two protocols at the same time, and it will respond immediately when receiving any protocol command, but the characteristic of this method is that the two protocols are equal, and the chip does not have a default communication protocol

Method used

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  • Implementation method for supporting dual protocols by utilizing RFID chip
  • Implementation method for supporting dual protocols by utilizing RFID chip

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Embodiment Construction

[0021] Attached below Figure 1 to Figure 2 The embodiments of the present invention are described in detail. This embodiment is implemented on the premise of the technical solution of the present invention, and provides detailed implementation and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0022] Such as figure 1 As shown, it shows the structural block diagram of the RFID chip utilized by the present invention, the RFID chip includes an ISO14443 instruction encoding / decoding module, an ISO15693 instruction encoding / decoding module, an ISO14443 instruction counter module, an ISO15693 instruction counter module, and an interface controller module , ISO14443 instruction executor module, ISO15693 instruction executor module, state machine / control unit module, EE memory module and RF module, among which the ISO14443 instruction encoding / decoding module completes the instruction receiving of the ISO14...

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Abstract

The invention discloses an implementation method for supporting dual protocols by utilizing an RFID chip. The method is characterized by comprising the following steps: setting one of an ISO 14443 protocol and an ISO 15693 protocol on the RFID chip as a default supported protocol on the RFID chip; electrifying the RFID chip, simultaneously receiving instructions of the two protocols, further judging the types of the received instructions, entering a communication mode of the default protocol if the instruction of the default protocol is received, and automatically switching into another communication mode when one condition is met; and not responding to the instruction and starting condition judgment when the instruction of a non-default protocol is received, judging the subsequent received instruction, switching to the communication mode of the non-default protocol if the condition is met, and responding to the instruction of the protocol. According to the implementation method disclosed by the invention, double communication protocols are realized, and the chip can preferentially enter a defaulted protocol mode during use and automatically switch to another communication protocol when the condition is met according to the service condition. Therefore, two protocol modes can be switched according to needs.

Description

technical field [0001] The invention relates to the technical field of radio frequency communication, and more specifically relates to a method for realizing dual protocols supported by an RFID chip. Background technique [0002] At present, there are mainly two communication protocols for high-frequency RFID chips, one is the ISO14443 protocol, and the other is the ISO15693 protocol. The two protocols have their own application characteristics. The ISO15693 protocol has the characteristics of long reading and writing distance and strong group reading ability, but the communication speed is relatively slow. The communication speed of the ISO14443 protocol is fast, but the distance is short and the group reading ability is not strong. With the rise of NFC technology and the application of the Internet of Things, the demand for both protocols is increasing. If the two communication protocols can be implemented in one chip, the advantages of the two will be combined, and the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K7/00
Inventor 初建朋曹玉升
Owner SHANGHAI FEIJU MICROELECTRONICS
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