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Self-adaptive resonant frequency method and self-adaptive resonant frequency device

A resonant frequency, self-adaptive technology, applied in the field of communication, can solve the problems of the change of the resonant frequency of the smart card, the terminal cannot communicate with the smart card, etc., and achieve the effect of improving the communication efficiency.

Active Publication Date: 2015-11-25
FEITIAN TECHNOLOGIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, during the communication process between the terminal and the smart card, due to the manufacturing process of the smart card, or with the increase of the working time of the smart card, the resonant frequency of the smart card will change, resulting in the terminal not receiving the signal of the smart card normally. , reduce the communication efficiency between the terminal and the smart card, and even make the terminal unable to communicate with the smart card

Method used

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  • Self-adaptive resonant frequency method and self-adaptive resonant frequency device
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  • Self-adaptive resonant frequency method and self-adaptive resonant frequency device

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Embodiment 1

[0029] Embodiment 1 of the present invention provides a method for adaptive resonance frequency, such as figure 1 As shown, when the terminal receives the card search request sent by the host computer, it performs the following steps:

[0030] Step 101: the number of terminal initialization errors;

[0031] Preferably, the initial value of the number of errors is 0;

[0032] In this embodiment, this step may also include: the terminal initializes the gain value; preferably, the initial value of the gain value is 4;

[0033] Step 102: The terminal searches for a card according to the gain value, and obtains a card search result;

[0034] Specifically, the terminal sends the gain value to the contactless chip in the terminal, the terminal sends a card search command to the contactless chip, and receives the card search result returned by the contactless chip;

[0035] For example, the card search command sent by the terminal to the contactless chip is 0x00FFFF0100;

[0036] ...

Embodiment 2

[0111] Embodiment 2 of the present invention provides a device for adaptive resonant frequency, such as Figure 4 As shown, it includes: a main control chip 401, a contactless chip 402 and a communication interface 403;

[0112] The communication interface 403 is used to receive the card search request sent by the host computer;

[0113] The main control chip 401 is used to send the gain value to the contactless chip 402 when the communication interface 403 receives the card search request; send the card search instruction to the contactless chip 402; receive the card search result returned by the contactless chip 402; Determine whether the card search is successful based on the received card search result; when it is judged that the card search is successful, return the operation result to the host computer through the communication interface 403; when it is judged that the card search fails, update the error code according to the card search result; adjust according to the e...

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Abstract

The invention discloses a self-adaptive resonant frequency method and a self-adaptive resonant frequency device. The self-adaptive resonant frequency method comprises the following steps: when a terminal receives a card search request from an upper computer, the terminal executes the following steps: step 1, the terminal carries out card search according to a yield value and obtains a card search result; step 2, the terminal judges whether card search is successful according to the card search result, if so, the terminal returns an operation result to the upper computer, if not, the terminal executes step 3; step 3, the terminal updates an error code according to the card search result; step 4, the terminal adjusts the yield value according to the error code; and step 5, the terminal judges whether the adjusted yield value is in a first default range, if so, the terminal executes the step 1, and if not, the terminal returns card search failure information to the upper computer to finish. By utilizing the self-adaptive resonant frequency method, the yield value of the smart card signal received by the terminal is automatically adjusted according to error type generated in card search process, and the communication efficiency of the terminal and a smart card is improved.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and device for adaptive resonant frequency. Background technique [0002] In the prior art, during the communication process between the terminal and the smart card, due to the manufacturing process of the smart card, or with the increase of the working time of the smart card, the resonant frequency of the smart card will change, resulting in the terminal not receiving the signal of the smart card normally. , reducing the communication efficiency between the terminal and the smart card, and even making the terminal unable to communicate with the smart card. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a method and device for adaptive resonant frequency, which automatically adjusts the gain value of the smart card signal received in the terminal according to the error type in the pr...

Claims

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Application Information

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IPC IPC(8): G06K7/00
Inventor 陆舟于华章
Owner FEITIAN TECHNOLOGIES
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