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NFC-based locking and unlocking device

An unlocking device and unlocking technology, applied in the field of door control security product design and NFC communication, can solve the problem of low security and reliability, and achieve the effect of simple structure

Inactive Publication Date: 2015-03-25
SHANGHAI HUAHONG INTEGRATED CIRCUIT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The design of existing locking and unlocking devices is basically based on infrared technology, which is not safe and reliable

Method used

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  • NFC-based locking and unlocking device

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Experimental program
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Effect test

Embodiment Construction

[0016] As shown in the accompanying drawings, the NFC-based locking and unlocking device includes:

[0017] A locking and unlocking module, which includes: an MCU, a motor, and a first NFC module; the MCU and the motor communicate through a standard interface, and control the motor to realize the locking and unlocking function. The MCU communicates with the first NFC module through the SPI or I2C standard interface, and obtains whether the external locking and unlocking incentive is generated through the first NFC module.

[0018] A locking and unlocking device has a second NFC module, and the first NFC module of the locking and unlocking module and the second NFC module of the locking and unlocking device realize wireless communication through a radio frequency antenna.

[0019] The first NFC module continuously inquires whether there is a second NFC module approaching from the outside. When the second NFC module approaches, the second NFC module will respond to the first NFC...

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Abstract

The invention discloses an NFC-based locking and unlocking device which comprises a locking and unlocking module and locking and unlocking equipment, wherein the locking and unlocking module comprises an MCU, a motor and a first NFC module; communication is realized between the MCU and the motor by virtue of a standard interface; communication is realized between the MCU and the first NFC module by virtue of an SPI interface or an I2C interface; the locking and unlocking equipment comprises a second NFC module; wireless communication is realized between the first NFC module and the second NFC module by virtue of a radio frequency antenna; the data are encapsulated by the second NFC module according to a protocol and are transmitted to the first NFC module; the data are unpacked by the first NFC module according to a protocol and are transmitted to the MCU; the data are analyzed and processed by the MCU, if private equipment exists, successful match is realized, and the motor is controlled to realize locking and unlocking; otherwise match fails, the MCU has no response, and the motor is not controlled to perform locking and unlocking. According to the device disclosed by the invention, the safety of the locking and unlocking device can be improved; and the device is applied to motor vehicles, cabinets and other gate control systems.

Description

technical field [0001] The invention relates to the field of door control security product design and NFC communication, in particular to an NFC-based locking and unlocking device. Background technique [0002] Near Field Communication (NFC), also known as short-range wireless communication, is evolved from contactless radio frequency identification (RFID) and is backward compatible with RFID. NFC technology is a short-range high-frequency wireless communication technology that allows non-contact point-to-point data transmission between electronic devices within a distance of ten centimeters to achieve data exchange. Due to the natural security of NFC technology, it is especially suitable for providing M2M (Machine to Machine) communication for handheld devices such as lock and unlock modules, and is considered to have a very broad prospect in the payment application of handheld devices such as lock and unlock modules . [0003] The design of existing locking and unlocking...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G07C9/00
Inventor 王亮周强
Owner SHANGHAI HUAHONG INTEGRATED CIRCUIT
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