Method and module for correcting index discretization of low-frequency sensing device, and low-frequency sensing device

Abstract

The invention relates to a method and a module for correcting index discretization of a low-frequency sensing device, and the low-frequency sensing device, wherein the method for correcting the index discretization of the low-frequency sensing device comprises the following steps of: setting relative positions of and a distance d between the low-frequency sensing device and a low-frequency emission source for emitting low-frequency magnetic signals; presetting an initial threshold value GATE, and presetting a measurement standard value S of the low-frequency sensing device to the low-frequency magnetic signal according to the distance d; and adjusting the value of the GATE according to the difference between the actual measurement value X of the low-frequency sensing device for the low-frequency magnetic signal and the measurement standard value S, thus determining a present actual threshold value. The method is capable of keeping excellent transaction consistency of all the low-frequency sensing devices, namely keeping the card swiping control distance consistent, thereby enhancing the user experience; moreover, the low-frequency sensing device which does not reach the standard due to non-ideal transaction effect also can reach the standard of normal transaction after being corrected by the method; therefore, the yield of products can be improved.

Description

technical field [0001] The invention relates to the field of communications, in particular to a method for correcting discrete indexes of a low-frequency sensing device, a module, and a low-frequency sensing device. Background technique [0002] In recent years, with the development of mobile payment technology, people can already use their mobile phones to take buses, subways, go shopping in supermarkets, etc. These applications have brought great convenience to people's lives. At present, domestic mobile payment is technically divided into two categories, one is the 13.56MHz NFC solution; the other is the 2.4GHz solution. In the 2.4GHz solution, as long as an RFID-SIM / SD card with mobile payment function is inserted into the mobile phone, mobile payment can be realized. [0003] The card swiping distance (or transaction distance) control principle of the 2.4GHz scheme is the voltage value induced by the low-frequency induction device such as the low-frequency coil inside ...

AI Technical Summary

Problems solved by technology

[0004] However, due to the differences in the hardware of various RFID-SIM / SD cards, there are differences in the low-frequency magnetic signals they sense at the same distance, resulting in inconsistent electrical signals. If the thresholds of all RFID-SIM / SD cards If the value is constant, the swiping distance of various RFID-SIM / SD cards will be inconsistent, which will make the user experience of swiping the card different

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