CN112367759B - Thing allies oneself with lock circuit board and thing allies oneself with lock device - Google Patents

Thing allies oneself with lock circuit board and thing allies oneself with lock device Download PDF

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Publication number
CN112367759B
CN112367759B CN202010934220.7A CN202010934220A CN112367759B CN 112367759 B CN112367759 B CN 112367759B CN 202010934220 A CN202010934220 A CN 202010934220A CN 112367759 B CN112367759 B CN 112367759B
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China
Prior art keywords
metal layer
door lock
antenna
nfc
circuit board
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Active
Application number
CN202010934220.7A
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Chinese (zh)
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CN112367759A (en
Inventor
张云恒
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Shenzhen Suner Technology Co ltd
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Shenzhen Suner Technology Co ltd
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Priority to CN202010934220.7A priority Critical patent/CN112367759B/en
Publication of CN112367759A publication Critical patent/CN112367759A/en
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0296—Conductive pattern lay-out details not covered by sub groups H05K1/02 - H05K1/0295
    • H05K1/0298—Multilayer circuits
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B45/00—Alarm locks
    • E05B45/06—Electric alarm locks
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00309—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated with bidirectional data transmission between data carrier and locks
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00571—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by interacting with a central unit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive loop type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/18—Printed circuits structurally associated with non-printed electric components

Abstract

The application discloses an Internet of things door lock circuit board and an Internet of things door lock device, wherein the circuit board comprises a substrate, a main control module, an NFC communication module, a door lock switch driving module, a Bluetooth antenna assembly and an NFC antenna assembly; the substrate comprises a first metal layer, a second metal layer and a grounding layer; the main control module is arranged on the first metal layer; the main control module comprises a system single chip; the NFC communication module is arranged on the first metal layer; the NFC communication module is connected with the system single chip; the door lock switch driving module is arranged on the first metal layer; the door lock switch driving module is connected with the system single chip; the Bluetooth antenna assembly is arranged on the first metal layer; the Bluetooth antenna assembly is connected with the system single chip; the NFC antenna assembly is arranged on the second metal layer and surrounds the second metal layer; NFC antenna module is connected to the NFC antenna subassembly, and then realizes the induction communication function of thing networking lock based on a circuit board, has reduced the volume of thing networking lock circuit board, changes in installing on the lock.

Description

Thing allies oneself with lock circuit board and thing allies oneself with lock device
Technical Field
The application relates to the technical field of Internet of things door locks, in particular to an Internet of things door lock circuit board and an Internet of things door lock device.
Background
The door lock is an indispensable component for achieving theft prevention. Along with the development of science and technology and the improvement of living standard, electronic locks are widely popularized and used in places such as families, hotels, enterprises and public places, wherein the application of the internet of things locks is more and more extensive, and the technical level of the internet of things locks is more and more mature.
At present, traditional thing networking lock usually needs to carry on the communication response function that the polylith circuit board realized thing networking lock, causes the bulky of circuit board, leads to the volume of thing networking lock too big, is difficult for installing on small-size lock.
Disclosure of Invention
Based on this, it needs the polylith circuit board to carry on for the realization communication response function of traditional thing networking lock, causes the bulky of circuit board, leads to the too big problem of volume of thing networking lock, provides a thing networking lock circuit board and thing networking lock device.
In order to achieve the above object, an embodiment of the present invention provides an internet-of-things door lock circuit board, including:
the substrate comprises a first metal layer, a second metal layer and a grounding layer; the second metal layer is arranged between the first metal layer and the grounding layer;
the main control module is arranged on the first metal layer; the main control module comprises a system single chip;
the NFC communication module is arranged on the first metal layer; the NFC communication module is connected with the system single chip;
the door lock switch driving module is arranged on the first metal layer; the door lock switch driving module is connected with the system single chip;
the Bluetooth antenna assembly is arranged on the first metal layer; the Bluetooth antenna assembly is connected with the system single chip;
the NFC antenna assembly is arranged on the second metal layer and surrounds the second metal layer; the NFC antenna assembly is connected with the NFC communication module.
In one embodiment, the Bluetooth antenna assembly comprises a first antenna and a Bluetooth onboard antenna coupled with the first antenna;
one end of the first antenna is connected with the system single chip.
In one embodiment, the first antenna is an elongated metal wire.
In one embodiment, the NFC antenna assembly comprises a second antenna and an NFC onboard antenna coupled with the second antenna;
one end of the second antenna is connected with the NFC communication module.
In one embodiment, the NFC onboard antenna is disposed annularly around the edge of the second metal layer.
In one embodiment, the system further comprises a buzzer connected with the system single chip; the buzzer is arranged on the first metal layer.
In one embodiment, the system also comprises a key component connected with the system single chip; the key assembly is arranged on the first metal layer.
In one embodiment, the key assembly comprises a touch keyboard and a backlight lamp which are respectively arranged on the first metal layer; the backlight lamp is arranged close to the touch keyboard;
the touch keyboard and the backlight lamp are respectively connected with the system single chip.
In one embodiment, the system also comprises a FLASH storage chip connected with the system single chip.
On the other hand, the embodiment of the invention also provides an internet of things door lock device which comprises the internet of things door lock circuit board.
One of the above technical solutions has the following advantages and beneficial effects:
in each embodiment of the above-mentioned door lock circuit board for the internet of things, the door lock circuit board for the internet of things includes a substrate, a main control module, an NFC communication module, a door lock switch driving module, a bluetooth antenna assembly, and an NFC antenna assembly, where the substrate includes a first metal layer, a second metal layer, and a ground layer; the second metal layer is arranged between the first metal layer and the grounding layer; the main control module is arranged on the first metal layer; the main control module comprises a system single chip; the NFC communication module is arranged on the first metal layer; the NFC communication module is connected with the system single chip; the door lock switch driving module is arranged on the first metal layer; the door lock switch driving module is connected with the system single chip; the Bluetooth antenna assembly is arranged on the first metal layer; the Bluetooth antenna assembly is connected with the system single chip; the NFC antenna assembly is arranged on the second metal layer and surrounds the second metal layer; the NFC antenna assembly is connected with the NFC communication module, and then the induction communication function of the Internet of things door lock is realized based on one circuit board. The method is based on the fact that a main control module, an NFC communication module, a door lock switch driving module and a Bluetooth antenna assembly are arranged on a first metal layer of a substrate; the NFC antenna assembly is arranged on the second metal layer of the substrate, NFC communication and Bluetooth communication functions of the IOT door lock are achieved on the substrate, the size of the IOT door lock circuit board is reduced, and the IOT door lock circuit board is easier to install on the door lock.
Drawings
The present application will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a first schematic diagram of an embodiment of an IOT door lock circuit board;
FIG. 2 is a second schematic diagram of an embodiment of an IOT lock circuit board;
fig. 3 is a schematic diagram of a third structure of the circuit board of the internet-of-things door lock in one embodiment.
Detailed Description
For a more clear understanding of the technical features, objects, and effects of the present application, specific embodiments of the present application will now be described in detail with reference to the accompanying drawings.
The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The following detailed description of embodiments of the present application will be made with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present application, are given by way of illustration and explanation only, and are not intended to limit the present application.
Referring to fig. 1, fig. 2 and fig. 3, a detailed description will be given below of an internet-of-things door lock circuit board and an internet-of-things door lock device according to an embodiment of the present application with reference to the drawings.
In order to solve the problem that the traditional thing networking lock needs to carry a plurality of circuit boards to realize the communication induction function, the circuit boards are large in size, and the problem that the volume of the thing networking lock is too large is caused. In one embodiment, as shown in fig. 1, there is provided an internet of things door lock circuit board, including:
a substrate 110, wherein the substrate 110 includes a first metal layer, a second metal layer and a ground layer; the second metal layer is arranged between the first metal layer and the grounding layer;
the main control module 120, wherein the main control module 120 is arranged on the first metal layer; the main control module 120 includes a system-on-chip 122;
the NFC communication module 130, wherein the NFC communication module 130 is disposed on the first metal layer; the NFC communication module 130 is connected to the system-on-chip 122;
the door lock switch driving module 140, the door lock switch driving module 140 is arranged on the first metal layer; the door lock switch driving module 140 is connected with the system single chip 122;
the Bluetooth antenna assembly 150, the Bluetooth antenna assembly 150 is arranged on the first metal layer; the bluetooth antenna assembly 150 is connected to the system-on-chip 122;
the NFC antenna component 160 is disposed on the second metal layer, and surrounds the second metal layer; an NFC antenna assembly 160 is connected to the NFC communications module 130.
Wherein the substrate 110 refers to a copper clad circuit board; the substrate 110 may be a PCB (Printed circuit board). The PCB board may be a double-sided PCB board. In one example, the substrate 110 may include a first metal layer, a second metal layer, and a ground layer. The first and second metal layers may be copper-clad metal layers; the ground layer is used for connecting the ground wire. A via hole can be arranged on the first metal layer; vias refer to metallized vias that guide the printing between the connected metal layer and the ground plane. It should be noted that the number and size of the vias may be determined according to the design requirements and size of the actual circuit board.
The master control module 120 refers to a control module having a bluetooth BLE function and a signal processing and transmitting function. The master control module 120 may include a system-on-a-chip 122. The System-on-a-chip 122 (abbreviated as SoC or SoC, other translated names include SoC, and System-on-chip) refers to a single chip integrated with a bluetooth chip and a processing chip. The system single chip 122 can be used for performing data interaction with a cloud server (such as a mobile terminal based on a bluetooth function), so as to implement bluetooth wireless communication, and further implement a bluetooth communication function of the internet of things door lock. The door lock switch driving module 140 may be used to drive the door lock transmission mechanism so that the door lock switch is opened or closed. The NFC (Near Field Communication) Communication module 130 may be used to sense identity information of a card (IC card), that is, the NFC Communication module 130 may be used to inductively communicate with the card.
The bluetooth antenna assembly 150 may be configured to receive the instruction transmitted by the cloud server and transmit the received instruction to the system-on-a-chip 122. The system-on-a-chip 122 can transmit signals to the bluetooth antenna assembly 150, and the bluetooth antenna assembly 150 transmits the signals to the cloud server, thereby enhancing bluetooth signal transmission. The communication signals between the system-on-a-chip 122 and the cloud server are enhanced by the arrangement of the bluetooth antenna assembly 150.
The NFC antenna component 160 can be used to receive the inductive information of the house card and transmit the received inductive information to the NFC communication module 130, and then the NFC communication module 130 can transmit the inductive information to the system-on-chip 122. By providing the NFC antenna assembly 160, bluetooth signal transmission is enhanced.
Further, the base substrate 110 includes a first metal layer, a second metal layer and a ground layer; the second metal layer is arranged between the first metal layer and the grounding layer; the main control module 120 is disposed on the first metal layer; the main control module 120 includes a system-on-chip 122; the NFC communication module 130 is disposed on the first metal layer; the NFC communication module 130 is connected to the system-on-chip 122; the door lock switch driving module 140 is arranged on the first metal layer; the door lock switch driving module 140 is connected with the system single chip 122; the bluetooth antenna assembly 150 is arranged on the first metal layer; the bluetooth antenna assembly 150 is connected to the system-on-chip 122; the NFC antenna component 160 is disposed on the second metal layer and surrounds the second metal layer; NFC antenna module 160 is connected NFC communication module 130, and then terminal accessible bluetooth antenna module 150 carries out communication connection with system single-chip 122, and room card accessible NFC antenna module 160 carries out induction communication with NFC communication module 130, realizes the response function of punching the card, and then only can realize the induction communication function of thing networking lock on a circuit board, has reduced the volume of circuit board.
In the above embodiment, the main control module, the NFC communication module, the door lock switch driving module, and the bluetooth antenna assembly are disposed on the first metal layer of the substrate; the NFC antenna assembly is arranged on the second metal layer of the substrate, NFC communication and Bluetooth communication functions of the IOT door lock are achieved on the substrate, the size of the IOT door lock circuit board is reduced, and the IOT door lock circuit board is easier to install on the door lock.
In one embodiment, as shown in fig. 2, there is provided an internet of things door lock circuit board, which includes a substrate 210, a main control module 220, an NFC communication module 230, a door lock switch driving module 240, a bluetooth antenna assembly 250, and an NFC antenna assembly 260; the substrate 210 includes a first metal layer, a second metal layer and a ground layer; the second metal layer is arranged between the first metal layer and the grounding layer; the main control module 220 is disposed on the first metal layer; the main control module 220 includes a system-on-chip 222; the NFC communication module 230 is disposed on the first metal layer; the NFC communication module 230 is connected to the system-on-chip 222; the door lock switch driving module 240 is arranged on the first metal layer; the door lock switch driving module 240 is connected with the system single chip 222; the bluetooth antenna assembly 250 is disposed on the first metal layer; the bluetooth antenna assembly 250 is connected to the system-on-chip 222; the NFC antenna component 260 is disposed on the second metal layer and surrounds the second metal layer; an NFC antenna assembly 260 is connected to the NFC communications module 230.
Wherein, bluetooth antenna assembly 250 includes a first antenna 252 and a bluetooth onboard antenna 254 coupled to first antenna 252; one end of the first antenna 252 is connected to the system-on-chip 222.
Specifically, the first antenna 252 may be a metal wire provided at the first metal layer. The bluetooth onboard antenna 254 may be a linear bluetooth onboard antenna or a sheet bluetooth onboard antenna.
Further, the first antenna 252 may be an elongated metal wire.
Further, a bluetooth onboard antenna 254 is coupled to the first antenna 252 based on one end of the first antenna 252 connected to the system-on-chip 222. The cloud server can establish a communication connection with the system-on-chip 222 through the bluetooth onboard antenna 254, and then the cloud server can couple the generated key with the first antenna 252 through the bluetooth onboard antenna 250 and transmit the key to the system-on-chip 222; the system-on-chip 222 can send the received key to the system-on-chip 222, thereby realizing the distribution of the corresponding encryption and decryption key to the internet-of-things door lock. The system single chip 222 can verify the house card receiving sensing information according to the received encryption and decryption key, and when the house card sensing information is successfully verified, the system single chip 222 transmits an unlocking driving instruction to the door lock switch driving module 240; the door lock switch driving module 240 drives the corresponding door lock switch to be opened according to the unlocking driving instruction, so that the room door is unlocked.
Further, the mobile terminal can establish a communication connection with the system-on-chip 222 through the bluetooth onboard antenna 254, and then the mobile terminal can be coupled with the first antenna 252 through the bluetooth onboard antenna 254 to transmit an unlocking instruction to the system-on-chip 222; the system single chip 222 can verify the unlocking instruction based on the key according to the unlocking instruction transmitted by the system single chip 222, and when the unlocking instruction is successfully verified, the system single chip 222 transmits the unlocking instruction to the door lock switch driving module 240; the door lock switch driving module 240 drives the corresponding door lock switch to be opened according to the unlocking driving instruction, so that the room door is unlocked.
In the above embodiment, the main control module, the NFC communication module, the door lock switch driving module, the first antenna, and the bluetooth onboard antenna are disposed on the first metal layer of the substrate; the NFC antenna assembly is arranged on the second metal layer of the substrate, NFC communication and Bluetooth communication functions of the IOT door lock are achieved on the substrate, communication signals between a system single chip and a cloud server are enhanced, the size of the IOT door lock circuit board is reduced, and the IOT door lock circuit board is easier to install on a door lock.
In one embodiment, as shown in fig. 2, NFC antenna assembly 260 includes a second antenna 262 and an NFC onboard antenna 264 coupled with second antenna 262; one end of the second antenna 262 is connected to the NFC communication module 230.
The second antenna 262 may be a metal wire disposed on the second metal layer. The NFC onboard antenna 264 may be a linear NFC onboard antenna or a sheet NFC onboard antenna.
Further, the second antenna 262 may be an elongated metal wire.
Further, the NFC onboard antenna 264 is a loop onboard antenna, and the NFC onboard antenna 264 is disposed around the peripheral edge of the second metal layer.
Further, the NFC communication module 230 is connected to one end of the second antenna 262, the NFC communication module 230 is connected to the system-on-chip 222, and the second antenna 262 is coupled to the NFC onboard antenna 264. The house card may establish a communication connection with the NFC communication module 230 through the NFC onboard antenna 264. The user can use the house card to approach the NFC communication module 230, and the NFC communication module 230 can be coupled to the NFC onboard antenna 264 through the second antenna 262 to read the house card sensing information of the house card and transmit the read house card sensing information to the system-on-chip 222. The system-on-chip 222 can then verify the received house card sensing information, and transmit an unlocking driving instruction to the door lock switch driving module 240 when the house card sensing information is successfully verified; the door lock switch driving module 240 can drive the corresponding door lock switch to be opened according to the unlocking driving instruction, and further unlocking of the room door is achieved.
In the above embodiment, the main control module, the NFC communication module, the door lock switch driving module, and the bluetooth antenna assembly are disposed on the first metal layer of the substrate; set up second antenna and NFC antenna module on the second metal level of base plate, through NFC communication and the bluetooth communication function who realizes the thing networking lock on a base plate, strengthened the communication signal between room card and the NFC communication module, reduced the volume of thing networking lock circuit board, change in and install on the lock.
In one embodiment, as shown in fig. 3, there is provided an internet of things door lock circuit board, which includes a substrate 310, a master module 320, an NFC communication module 330, a door lock switch driving module 340, a bluetooth antenna assembly 350, and an NFC antenna assembly 360; the substrate 310 includes a first metal layer, a second metal layer and a ground layer; the second metal layer is arranged between the first metal layer and the grounding layer; the main control module 320 is arranged on the first metal layer; the main control module 320 includes a system-on-a-chip 322; the NFC communication module 330 is disposed on the first metal layer; the NFC communication module 330 is connected to the system-on-chip 322; the door lock switch driving module 340 is arranged on the first metal layer; the door lock switch driving module 340 is connected with the system single chip 322; the bluetooth antenna assembly 350 is disposed on the first metal layer; the bluetooth antenna assembly 350 is connected to the system-on-chip 322; the NFC antenna component 360 is disposed on the second metal layer and surrounds the second metal layer; NFC antenna assembly 250 is connected to NFC communications module 330.
Wherein, the circuit board further comprises a buzzer 370 connected with the system single chip 322; the buzzer 370 is provided on the first metal layer.
Specifically, a user may input a peripheral device (e.g., a house card) by operating, and the NFC communication module 330 may read house card sensing information of the house card through the NFC antenna assembly 360; the system single chip 322 can verify the received house card sensing information, and further can trigger the buzzer 370 when the house card sensing information verification fails, so that the buzzer 370 sends out an alarm sound to indicate that the room door is failed to unlock.
In the above embodiment, the main control module, the NFC communication module, the door lock switch driving module, and the bluetooth antenna assembly are disposed on the first metal layer of the substrate; the NFC antenna assembly is arranged on the second metal layer of the substrate, NFC communication and Bluetooth communication functions of the IOT door lock are achieved on the substrate, the size of the IOT door lock circuit board is reduced, and the IOT door lock circuit board is easier to install on the door lock. Based on buzzer connected system single-chip, strengthened the intelligent degree of thing networking lock.
In one embodiment, as shown in fig. 3, the circuit board further includes a key assembly 380 connected to the system-on-a-chip 322; the keypad assembly 380 is disposed on the first metal layer.
Key assembly 380 may be a touch key assembly or a mechanical key assembly.
Specifically, based on key assembly 380 being connected to system-on-a-chip 322, the user can input an unlocking password by operating key assembly 380, and then key assembly 380 can transmit the unlocking password to system-on-a-chip 322. The system single chip 322 can verify the received house card sensing information, and further can transmit an unlocking driving instruction to the door lock switch driving module 340 when the house card sensing information is successfully verified; the door lock switch driving module 340 can drive the corresponding door lock switch to be opened according to the unlocking driving instruction, so as to realize the unlocking of the room door; when the verification of the house card sensing information fails, the buzzer 370 may be triggered, so that the buzzer 370 sounds an alarm to indicate that the unlocking of the door of the room fails.
In one specific embodiment, as shown in fig. 3, key assembly 380 includes a touch keypad 382 and a backlight 384, each disposed on a first metal layer; the backlight 384 is disposed proximate to the touch keyboard 382; the touch keyboard 382 and the backlight 384 are respectively connected to the system-on-chip 322.
Among them, the touch keyboard 382 may be a membrane switch type touch keyboard. In one example, the touch keyboard 382 supports 12 channels. The backlight 384 may be, but not limited to, a CCFL (Cold Cathode Fluorescent Lamp) backlight or a LED (Light Emitting Diode) backlight.
Specifically, the user can input an unlocking password through the touch keyboard 382, and then the touch keyboard 382 can transmit key information to the system-on-chip 322; the system single chip 322 can verify the received key information, and then can transmit an unlocking driving instruction to the lock switch driving module 340 when the key information is successfully verified; the door lock switch driving module 340 can drive the corresponding door lock switch to be opened according to the unlocking driving instruction, and further unlocking of the room door is achieved.
Further, based on the fact that the backlight 384 is arranged close to the touch keyboard 382, when the current ambient light is insufficient, the backlight 384 can be triggered to light up, a light source is increased to the area of the touch keyboard 382, and then a user can clearly see each key of the touch keyboard.
In one embodiment, as shown in FIG. 3, the circuit board further includes a FLASH memory chip 390 connected to the system-on-a-chip.
In particular, the FLASH memory chip 390 may be used to store encryption and decryption keys. The encryption and decryption keys may be derived based on a butt-joint encryption algorithm.
Further, the system single chip 322 can identify and judge the FLASH ID (FLASH identification code) of the FLASH memory chip 390, and further the system single chip 322 can read the stored encryption and decryption keys from the FLASH memory chip 390 when receiving the house card sensing information; the system single chip 322 verifies the house card induction information based on the encryption and decryption key, and transmits an unlocking driving instruction to the door lock switch driving module 340 when the house card induction information is successfully verified; the door lock switch driving module 340 drives the door lock switch to be opened according to the unlocking driving instruction, so that the room door is unlocked.
It should be noted that, for convenience of description, the internal structures of the first metal layer, the second metal layer and the ground layer included in the substrate are not shown in fig. 1, fig. 2 and fig. 3, however, any person skilled in the art to which the present application belongs should be able to determine the actual positions and functions of the first metal layer, the second metal layer and the ground layer in the main region, and therefore, the detailed description thereof is omitted here.
In a specific embodiment, the system single chip is in communication connection with the FLASH memory chip based on an SPI (Serial Peripheral Interface) communication mode.
Specifically, a FLASH storage chip is connected based on a system single chip; the system single chip can be connected with the FLASH memory chip through the SPI interface, and then when the system single chip receives the encryption and decryption key transmitted by the Bluetooth module, the received encryption and decryption key can be transmitted to the FLASH memory chip based on the SPI communication mode. The system single chip verifies the house card induction information based on the encryption and decryption key when receiving the house card induction information, and transmits an unlocking driving instruction to the door lock switch driving module when the house card induction information is successfully verified; the door lock switch driving module drives the corresponding door lock switch to be opened according to the unlocking driving instruction, and then unlocking of the room door is achieved.
In one embodiment, the door lock switch driving module comprises a door lock motor driving chip connected with the system single chip.
Specifically, the door lock motor refers to a motor for driving a door lock switch to rotate; the door lock motor driving chip refers to a driving chip for driving the door lock motor to work.
Further, when the house card sensing information (or unlocking password) is verified successfully, the system single chip transmits an unlocking driving instruction to the door lock motor driving chip; the door lock motor driving chip generates a driving signal according to the unlocking driving instruction, and transmits the driving signal to the door lock motor, so that the door lock motor rotates according to the driving signal, and the door lock switch is driven to be opened, so that the room door is unlocked.
In the above embodiment, the main control module, the NFC communication module, the door lock switch driving module, and the bluetooth antenna assembly are disposed on the first metal layer of the substrate; the NFC antenna assembly is arranged on the second metal layer of the substrate, NFC communication and Bluetooth communication functions of the IOT door lock are achieved on the substrate, the size of the IOT door lock circuit board is reduced, and the IOT door lock circuit board is easier to install on the door lock.
In a specific embodiment, the system single chip is connected with the door lock motor driving chip through an IO interface.
Specifically, the system single chip can be connected with a door lock motor driving chip through an IO interface, and further can directly transmit an unlocking driving instruction to the door lock motor driving chip through the IO interface when the house card induction information is successfully verified; the door lock motor driving chip generates a driving signal according to the unlocking driving instruction, and transmits the driving signal to the door lock motor, so that the door lock motor rotates according to the driving signal, and the door lock switch is driven to be opened, so that the room door is unlocked.
In one example, the IOT door lock circuit board further comprises a battery module connected with the system-on-a-chip. The battery module is arranged on the substrate and is electrically connected with the system single chip through the metal wiring. The battery module can be formed by one or more batteries connected in parallel or in series; the battery module can be used to supply power to the system-on-chip.
In one embodiment, an internet of things door lock device is further provided, and the internet of things door lock device comprises the internet of things door lock circuit board in any one of the embodiments.
Specifically, the IOT door lock circuit board comprises a substrate, a main control module, an NFC communication module, a door lock switch driving module, a Bluetooth antenna assembly and an NFC antenna assembly, wherein the substrate comprises a first metal layer, a second metal layer and a grounding layer; the second metal layer is arranged between the first metal layer and the grounding layer; the main control module is arranged on the first metal layer; the main control module comprises a system single chip; the NFC communication module is arranged on the first metal layer; the NFC communication module is connected with the system single chip; the door lock switch driving module is arranged on the first metal layer; the door lock switch driving module is connected with the system single chip; the Bluetooth antenna assembly is arranged on the first metal layer; the Bluetooth antenna assembly is connected with the system single chip; the NFC antenna assembly is arranged on the second metal layer and surrounds the second metal layer; the NFC antenna assembly is connected with the NFC communication module, and then the induction communication function of the Internet of things door lock is realized based on one circuit board.
In the above embodiment, the main control module, the NFC communication module, the door lock switch driving module, and the bluetooth antenna assembly are disposed on the first metal layer of the substrate; the NFC antenna assembly is arranged on the second metal layer of the substrate, NFC communication and Bluetooth communication functions of the IOT door lock are achieved on the substrate, the size of the IOT door lock circuit board is reduced, and the IOT door lock circuit board is easier to install on the door lock.
In one example, the internet-of-things door lock device further comprises a housing; the thing allies oneself with lock circuit board sets up in the casing.
For specific definition of the internet-of-things door lock device, reference may be made to the definition of the internet-of-things door lock circuit board in the foregoing, and details are not described herein again.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (6)

1. An thing networking lock circuit board which characterized in that includes:
a substrate including a first metal layer, a second metal layer and a ground layer; the second metal layer is arranged between the first metal layer and the grounding layer;
the main control module is arranged on the first metal layer; the main control module comprises a system single chip;
the NFC communication module is arranged on the first metal layer; the NFC communication module is connected with the system single chip;
the door lock switch driving module is arranged on the first metal layer; the door lock switch driving module is connected with the system single chip;
the Bluetooth antenna assembly is arranged on the first metal layer; the Bluetooth antenna assembly is connected with the system single chip;
an NFC antenna assembly disposed on and surrounding the second metal layer; the NFC antenna assembly is connected with the NFC communication module;
the NFC antenna assembly comprises a second antenna and an NFC on-board antenna coupled with the second antenna; one end of the second antenna is connected with the NFC communication module;
the NFC on-board antenna is annularly arranged on the edge of the second metal layer in a surrounding mode;
the system single chip is a single chip integrated with a Bluetooth chip and a processing chip;
the Bluetooth antenna assembly comprises a first antenna and a Bluetooth onboard antenna coupled with the first antenna;
one end of the first antenna is connected with the system single chip;
the first antenna is a strip-shaped metal wire.
2. The door lock circuit board of the internet of things of claim 1, further comprising a buzzer connected with the system single chip; the buzzer is arranged on the first metal layer.
3. The door lock circuit board of claim 1, further comprising a key assembly connected to the system-on-a-chip; the key assembly is arranged on the first metal layer.
4. The lock circuit board of the internet of things according to claim 3, wherein the key assembly comprises a touch keyboard and a backlight respectively arranged on the first metal layer; the backlight lamp is arranged close to the touch keyboard;
the touch keyboard and the backlight lamp are respectively connected with the system single chip.
5. The IOD door lock circuit board of any one of claims 1 to 4, further comprising a FLASH memory chip connected to the system-on-a-chip.
6. An internet-of-things door lock device, characterized by comprising the internet-of-things door lock circuit board according to any one of claims 1 to 5.
CN202010934220.7A 2020-09-08 2020-09-08 Thing allies oneself with lock circuit board and thing allies oneself with lock device Active CN112367759B (en)

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CN110571513A (en) * 2018-06-06 2019-12-13 嘉联益电子(昆山)有限公司 electronic device and multi-band flexible circuit board antenna structure thereof
CN111173380A (en) * 2020-03-02 2020-05-19 深圳晒尔科技有限公司 Thing allies oneself with lock control circuit board and thing allies oneself with lock device thereof

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US20150229018A1 (en) * 2014-02-12 2015-08-13 Apple Inc. Antenna on sapphire structure
CN107580740A (en) * 2015-04-27 2018-01-12 三星电子株式会社 Wireless power receiving device
CN108605423A (en) * 2016-07-11 2018-09-28 株式会社斗山 Anneta module formation composite substrate and its manufacturing method
CN110571513A (en) * 2018-06-06 2019-12-13 嘉联益电子(昆山)有限公司 electronic device and multi-band flexible circuit board antenna structure thereof
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CN111173380A (en) * 2020-03-02 2020-05-19 深圳晒尔科技有限公司 Thing allies oneself with lock control circuit board and thing allies oneself with lock device thereof

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