NFC (near field communication) intelligent door lock
A smart door lock and door lock technology, which is applied in the field of NFC smart door locks, can solve the problems of inability to realize independent power supply and high power consumption, and achieve the effect of low power consumption standby, low power consumption, and reduced power consumption
Inactive Publication Date: 2017-03-29
李玉德
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Problems solved by technology
[0006] In view of the shortcomings of the above-mentioned prior art, the purpose of the present invention is to provide an NFC smart door lock, which aims to solve the problem that the NFC master device of the NFC door lock in the prior art consumes a lot of power, cannot achieve independent power supply, and requires additional wiring. question
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[0025] The invention provides an NFC intelligent door lock. In order to make the object, technical solution and effect of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0026] Such as figure 1 Shown is a kind of NFC smart door lock of the present invention. Wherein the NFC smart door lock includes: a mechanical door lock part (that is, the basic mechanical structure part of the door lock) and an electronic part.
[0027] Wherein, the electronic part includes: a central processing module 100, an NFC identification module 200, a motor driving chip 300 for driving a motor, a motor 400 connected with the motor driving chip to drive the unlocking of the mechanical door lock, and a battery 500. The central p...
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The invention discloses an NFC (near field communication) intelligent door lock. The NFC intelligent door lock comprises a mechanical door lock, a central processing module, an NFC recognition module, a motor driving chip, a motor and a battery. The NFC recognition module is used for acquiring IC (integrated circuit) card information, the motor driving chip drives the motor, and the motor is connected with the motor driving chip to drive the mechanical door lock to unlock. The central processing module is used for receiving first IC card information acquired by the NFC recognition module and comparing with pre-stored second IC card information and is further used for outputting motor driving signals to the motor driving chip when the first IC card information matches with the second IC card information. The motor driving chip receives and amplifies the motor driving signals to drive the motor to rotate. The NFC recognition module further comprises a low-power-consumption MCU used for detecting antenna magnetic field changes, and the low-power-consumption MCU generates corresponding operation signals according to the NFC antenna magnetic field changes, so that interrupted reading of the NFC recognition module is realized.
Description
technical field [0001] The invention relates to the technical field of door locks, in particular to an NFC intelligent door lock. Background technique [0002] NFC near field communication technology is a new type of non-contact wireless communication technology evolved from RFID. By combining inductive card readers, inductive cards and point-to-point functions on a single chip, it can realize the functions of identification and data exchange with compatible devices within a short distance. [0003] This technology is widely used in different fields such as access control system and mobile payment. However, in the field of access control or door locks, the NFC device set on the door lock is the initiating device, which provides a radio frequency field during the entire communication process. Therefore, in the daily application of door lock or access control, the above-mentioned NFC device needs to continuously transmit radio frequency signals to detect whether there is an ...
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IPC IPC(8): G07C9/00
Inventor 李玉德
Owner 李玉德