CN108952351B - Passive electronic lock core - Google Patents
Passive electronic lock core Download PDFInfo
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- CN108952351B CN108952351B CN201811041850.0A CN201811041850A CN108952351B CN 108952351 B CN108952351 B CN 108952351B CN 201811041850 A CN201811041850 A CN 201811041850A CN 108952351 B CN108952351 B CN 108952351B
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- 238000004891 communication Methods 0.000 claims abstract description 36
- 239000002184 metal Substances 0.000 claims abstract description 32
- 239000003990 capacitor Substances 0.000 claims description 111
- 239000013078 crystal Substances 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 101100168115 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) con-6 gene Proteins 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- 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
- E05B47/0012—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with rotary electromotors
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- 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
- E05B45/061—Electric alarm locks for combination locks
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- 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
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- 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
- E05B2047/0048—Circuits, feeding, monitoring
- E05B2047/0057—Feeding
- E05B2047/0063—Energy transfer from key to lock, e.g. for emergency opening
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- 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
- G07C2009/00753—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Lock And Its Accessories (AREA)
Abstract
The invention discloses a passive electronic lock cylinder, which comprises a shell, a lock cylinder metal cover, a circuit board, lock cylinder pins, a plastic locking groove and a communication connecting piece, wherein one side of a main body part of the lock cylinder metal cover is provided with a containing cavity matched with the circuit board, the communication connecting piece is perpendicular to the circuit board and fixed on one side of the circuit board, the lock cylinder pins are perpendicularly fixed on the other side of the circuit board, the circuit board is inserted into the containing cavity from the side surface of the containing cavity and transversely inserted into the through hole along a through hole on the lock cylinder metal cover, two U-shaped inserting arms of the plastic locking groove penetrate through slotted holes, the side surfaces of the inserting arms abut against one side of the circuit board to lock and fix the circuit board in the lock cylinder metal cover, and the lock cylinder metal cover is inserted into the shell from one end of a stepped groove and is tightly expanded and fixed with the inner wall of the shell. The invention can keep the electronic lock in a passive state in normal times, temporarily supplies power to the lock core of the electronic lock by the electronic key and communicates the power when the electronic lock needs to be unlocked, thereby realizing unlocking and saving energy.
Description
Technical Field
The invention relates to an electronic lock cylinder, in particular to a passive electronic lock cylinder.
Background
The large number of passive boxes and station machine rooms are all mechanical locks, and because different suppliers also introduce different types of mass keys, the passive boxes and station machine rooms cannot be effectively managed by manpower at all, and no centralized management and control method is provided. The disadvantage of mechanical locks is the low key management security: the mechanical key borrowing and returning system is difficult to effectively guarantee execution, an effective switch record cannot be generated by using a mechanical key to switch a lock, and problems cannot be traced or tracked; the mechanical key is seriously generalized and is easy to copy or purchase, so that the lockset is similar to a dummy lockset, and line misoperation or other safety accidents are easy to occur.
Along with the development of electronic technology, the electronic technology is widely applied to the lockset industry, and at present, electronic locksets are mostly added with an electronic control part on the basis of traditional mechanical locksets, so that the manufacturing process of the electronic lockset is more complex than that of the traditional mechanical locksets, and the cost is correspondingly increased; most of the existing electronic locks adopt active designs, namely, working power supply is needed to be provided for the locks, and as the use environment of the locks is very complex, the environment of outdoor use of a plurality of devices is a passive environment, and the reliability of the locks is directly influenced by the reliability of the power supply, the active locks cannot completely replace the traditional mechanical locks.
Disclosure of Invention
The invention aims to provide a passive electronic lock cylinder.
In order to solve the technical problems, the invention adopts the following technical scheme:
a passive electronic lock core, characterized in that: the lock cylinder metal cover comprises a shell, a lock cylinder metal cover, a circuit board, lock cylinder pins, a plastic locking groove and a communication connecting piece, wherein one side of a main body part of the lock cylinder metal cover is provided with a containing cavity matched with the shape of the circuit board, the communication connecting piece is perpendicular to the circuit board and fixed on one side of the circuit board, the lock cylinder pins are perpendicularly fixed on the other side of the circuit board, one end part of the lock cylinder metal cover protrudes outwards and is provided with a circular groove, the circular groove is provided with a through hole matched with the lock cylinder pins and communicated with the containing cavity, the circuit board is inserted into the containing cavity from the side of the containing cavity and transversely inserted into the through hole along the through hole in the lock cylinder metal cover, the plastic locking groove is a U-shaped plug, the other side of the containing cavity is provided with two slots matched with the plastic locking groove, the U-shaped plug arms of the plastic locking groove penetrate through and abut against one side of the circuit board to lock the circuit board and fix the lock cylinder metal cover, the inner diameter of the shell is matched with the lock cylinder metal cover, one end part of the shell is provided with a through hole matched with the lock cylinder metal cover, the through hole is inserted into the through the containing cavity along the through hole, the through hole is inserted into the through the containing cavity, and the metal cover is fixed with the expansion groove.
Further, a control circuit, a voltage conversion circuit, an electromagnetic valve control circuit, a buzzer control circuit, a card swiping control circuit and a 485 communication circuit are arranged on the circuit board, the voltage conversion circuit is connected with the control circuit and used for converting voltage, the electromagnetic valve control circuit is connected with the control circuit and used for controlling the action of an electromagnetic valve of the electronic lock, the buzzer control circuit is connected with the control circuit and used for controlling the buzzer to work, the card swiping control circuit is connected with the control circuit and used for controlling the card swiping, and the 485 communication circuit is connected with the control circuit and used for providing a 485 communication interface.
Further, the control circuit includes an Atmega88PA chip U1, 7 pins of the U1 are connected to one end of a crystal oscillator tube XL1 and one end of a capacitor C2, 8 pins of the U1 are connected to the other end of the crystal oscillator tube XL1 and one end of a capacitor C5, the other end of the capacitor C2 and the other end of the capacitor C5 are grounded, 3 pins 5 and 21 pins of the U1 are grounded, 9 pins of the U1 are connected to one end of a resistor R9, the other end of the resistor R9 is connected to a cathode of a light emitting diode LED2, an anode of the light emitting diode LED2 is connected to a 3.3V power supply, 2 pins of the U1 is connected to one end of a resistor R10, the other end of the resistor R10 is connected to a cathode of the light emitting diode LED1, an anode of the light emitting diode LED1 is connected to a 3.3V power supply, 4 pins 6 and 18 pins of the U1 are connected to one end of the capacitor C8 and one end of the capacitor C10, and the other end of the capacitor C8 is grounded.
Further, the voltage conversion circuit comprises a 78L05 three-terminal integrated voltage regulator chip U6 and an AAT322IIGV-3.3-2-T1 chip U7, a 1 pin of the U6 is connected with a 5V power supply, a 2 pin of the U6 is grounded, a 3 pin of the U6 is connected with one end of a capacitor C15 and a cathode of a diode D1, the other end of the capacitor C15 is grounded, an anode of the diode D1 is connected with one end of a fuse F1, the other end of the fuse F1 outputs a 12V power supply, the 1 pin of the U7 is connected with one end of a resistor R16, one end of a capacitor C4 and is connected with the 5V power supply, the 3 pin of the U7 is connected with the other end of the resistor R16, the 2 pin of the U7 is connected with the other end of the capacitor C4 and is grounded, the 5 pin of the U7 is connected with one end of the capacitor C11 and outputs a 3.3V power supply, and the other end of the capacitor C11 is grounded.
Further, the electromagnetic valve control circuit comprises a D882 triode U5, a base electrode of the U5 is connected with one end of a resistor R18, the other end of the resistor R18 is connected with a pin 10 of the U1, an emitter electrode of the U5 is grounded, a collector electrode of the U5 is connected with an anode of a diode D0, and a cathode of the diode D0 is connected with a 12V power supply.
Further, the buzzer control circuit comprises an S8550 triode T1, a base electrode of the T1 is connected with one end of a resistor R2, the other end of the resistor R2 is connected with the 11 pin of U1, a collector electrode of the T1 is grounded, an emitter electrode of the T1 is connected with one end of a buzzer BZ, and the other end of the buzzer BZ is connected with a 3.3V power supply.
Further, the card swiping control circuit comprises a high-integration read-write card RC522 chip U2 in non-contact communication, pins 1, 4, 5, 10, 14 and 18 of the U2 are grounded, pins 2, 3, 9 and 32 of the U2 are connected with a 3.3V power supply, pin 6 of the U2 is connected with one end of a resistor R1 and pin 12 of the U1, the other end of the resistor R1 is connected with the 3.3V power supply, pin 11 of the U2 is connected with one end of an inductor L1, pin 13 of the U2 is connected with one end of the inductor L2, pin 15 of the U2 is connected with one end of a capacitor C3 and is connected with the 3.3V power supply, the other end of the capacitor C3 is grounded, pin 16 of the U2 is connected with one end of a resistor R12, pin 17 of the U2 is connected with the other end of the resistor R12, one end of a capacitor C20 and one end of the resistor R11, the other end of the capacitor C20 is grounded, the other end of the resistor R11 is connected with one end of the capacitor C17, the other end of the capacitor C17 is connected with one end of the capacitor C33, one end of the capacitor C32, one end of the capacitor C31 and one end of the capacitor C30, the other end of the capacitor C33 is connected with the other end of the inductor L1 and one end of the capacitor C12, the other end of the capacitor C30 is connected with one end of the capacitor C13 and the other end of the inductor L2, the other ends of the capacitor C32, the other ends of the capacitor C31, the capacitor C12 and the other ends of the capacitor C13 are grounded, the 21 pin of the U2 is connected with one end of the crystal oscillator Y2 and one end of the capacitor C19, the 22 pin of the U2 is connected with the other end of the crystal oscillator Y2 and one end of the capacitor C14, the other ends of the capacitor C19 and the other ends of the capacitor C14 are grounded, the 24 pin of the U2 is connected with the 14 pin of the U1, and the 29, 30 and 31 pins of the U2 are respectively connected with the 17, 15 and 16 pins of the U1.
Further, the 485 communication circuit comprises an RS485 communication interface chip MAX485 chip U4, a 1 pin of U4 is connected with a 30 pin of U1, 2 pins of U4 and a 3 pin of U4 are connected with a 23 pin of U1, 4 pins of U4 are connected with a 31 pin of U1, 5 pins of U4 are grounded, 6 pins of U4 are connected with one end of a resistor R14 and 5 pins of a communication connector CON6, the other end of the resistor R14 is connected with a 3.3V power supply, 7 pins of U4 are connected with one end of a resistor R13 and 6 pins of a communication connector CON6, the other end of the resistor R13 is grounded, 8 pins of U4 are connected with one end of a capacitor C40 and are connected with the 3.3V power supply, and the other end of the capacitor C40 is grounded.
Compared with the prior art, the invention has the following advantages and effects: the passive electronic lock core can enable the electronic lock to keep a passive state in a normal passive state, and the electronic key is used for temporarily supplying power and communicating with the lock core of the electronic lock at any time when unlocking is needed, so that unlocking is realized, and energy is saved.
Drawings
Fig. 1 is a schematic view of a passive electronic lock cylinder of the present invention.
Fig. 2 is a disassembled view of the passive electronic lock cylinder of the present invention.
Fig. 3 is a schematic diagram of the control circuit of the present invention.
Fig. 4 is a schematic diagram of a voltage conversion circuit of the present invention.
Fig. 5 is a schematic diagram of the solenoid valve control circuit of the present invention.
Fig. 6 is a schematic diagram of a buzzer control circuit of the present invention.
FIG. 7 is a schematic diagram of a card swiping control circuit according to the invention.
Fig. 8 is a schematic diagram of a 485 communication circuit of the invention.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and not limited to the following examples.
As shown in fig. 1 and 2, the passive electronic lock cylinder of the invention comprises a shell 1, a lock cylinder metal cover 2, a circuit board 3, a lock cylinder contact pin 4, a plastic locking groove 5 and a communication connecting piece 6, wherein one side of a main body part of the lock cylinder metal cover 2 is provided with a containing cavity 7 matched with the shape of the circuit board 3, the communication connecting piece 6 is perpendicular to the circuit board 3 and fixed on one side of the circuit board 3, the lock cylinder contact pin 4 is perpendicularly fixed on the other side of the circuit board 3, one end part of the lock cylinder metal cover 2 protrudes outwards and is provided with a circular groove 8, a through hole matched with the lock cylinder contact pin 4 is formed in the circular groove 8, the circuit board 3 is inserted into the containing cavity 7 from the side of the containing cavity 7 and is transversely inserted into the through hole along the through hole in the lock cylinder metal cover 2, the plastic locking groove 5 is a U-shaped plug, a notch matched with the plastic locking groove 5 is formed in the lock cylinder metal cover 2 on the other side of the containing cavity 7, two U-shaped plug arms of the plastic locking groove 5 penetrate through the side of the circuit board 3 and lean against one side of the circuit board 3 and are abutted against one side of the shell 1 and the inner diameter of the metal cover 2, and the end part of the metal cover 2 is tightly matched with the shell 1 and the end part of the metal cover 1 is tightly locked with the shell 1.
The circuit board 3 is provided with a control circuit, a voltage conversion circuit, an electromagnetic valve control circuit, a buzzer control circuit, a card swiping control circuit and a 485 communication circuit, wherein the voltage conversion circuit is connected with the control circuit and used for converting the voltage, the electromagnetic valve control circuit is connected with the control circuit and used for controlling the action of an electromagnetic valve of the electronic lock, the buzzer control circuit is connected with the control circuit and used for controlling the buzzer to work, the card swiping control circuit is connected with the control circuit and used for controlling the card swiping, and the 485 communication circuit is connected with the control circuit and used for providing a 485 communication interface.
As shown in fig. 3, the control circuit includes an Atmega88PA chip U1, a 7 pin of the U1 is connected to one end of a crystal oscillator tube XL1 and one end of a capacitor C2, an 8 pin of the U1 is connected to the other end of the crystal oscillator tube XL1 and one end of a capacitor C5, the other end of the capacitor C2 and the other end of the capacitor C5 are grounded, 3, 5 and 21 pins of the U1 are grounded, a 9 pin of the U1 is connected to one end of a resistor R9, the other end of the resistor R9 is connected to a cathode of a light emitting diode LED2, an anode of the light emitting diode LED2 is connected to a 3.3V power supply, a 2 pin of the U1 is connected to one end of a resistor R10, the other end of the resistor R10 is connected to a cathode of the light emitting diode LED1, an anode of the light emitting diode LED1 is connected to a 3.3V power supply, 4, 6 and 18 pins of the U1 are connected to one end of the capacitor C8 and one end of the capacitor C10 are connected to the 3.3V power supply, and the other end of the capacitor C8 is grounded. The electronic key is composed of a control circuit, other communication modules, a rechargeable battery and the like, receives authentication of a mobile phone App through Bluetooth, and controls information to contact through a contact, so that the intelligent electric control lock is driven.
As shown in FIG. 4, the voltage conversion circuit comprises a 78L05 three-terminal integrated voltage regulator chip U6 and an AAT322IIGV-3.3-2-T1 chip U7, wherein the 1 pin of U6 is connected with a 5V power supply, the 2 pin of U6 is grounded, the 3 pin of U6 is connected with one end of a capacitor C15 and the cathode of a diode D1, the other end of the capacitor C15 is grounded, the anode of the diode D1 is connected with one end of a fuse F1, the other end of the fuse F1 outputs a 12V power supply, the 1 pin of U7 is connected with one end of a resistor R16, one end of a capacitor C4 and is connected with a 5V power supply, the 3 pin of U7 is connected with the other end of the resistor R16, the 2 pin of U7 is connected with the other end of the capacitor C4 and is grounded, the 5 pin of U7 is connected with one end of the capacitor C11 and outputs a 3.3V power supply, and the other end of the capacitor C11 is grounded. And converting the 5V power supply provided by the electronic key into 12V and 3.3V working power supplies required by the electronic lock cylinder.
As shown in fig. 5, the solenoid valve control circuit includes a D882 transistor U5, a base of the U5 is connected to one end of a resistor R18, the other end of the resistor R18 is connected to the 10 pin of the U1, an emitter of the U5 is grounded, a collector of the U5 is connected to an anode of a diode D0, and a cathode of the diode D0 is connected to a 12V power supply. The electromagnetic valve part mainly controls the conduction and non-conduction of the triode to control the work of the electromagnetic valve through the high-low level output by the io port of the mcu.
As shown in fig. 6, the buzzer control circuit includes an S8550 triode T1, a base of the T1 is connected to one end of a resistor R2, the other end of the resistor R2 is connected to the 11 pin of the U1, a collector of the T1 is grounded, an emitter of the T1 is connected to one end of a buzzer BZ, and the other end of the buzzer BZ is connected to a 3.3V power supply.
As shown in FIG. 7, the card-swiping control circuit comprises a high-integration read-write card RC522 chip U2 in non-contact communication, pins 1, 4, 5, 10, 14 and 18 of U2 are grounded, pins 2, 3, 9 and 32 of U2 are connected with a 3.3V power supply, pin 6 of U2 is connected with one end of a resistor R1 and pin 12 of U1, the other end of the resistor R1 is connected with a 3.3V power supply, pin 11 of U2 is connected with one end of an inductor L1, pin 13 of U2 is connected with one end of the inductor L2, pin 15 of U2 is connected with one end of a capacitor C3 and is connected with a 3.3V power supply, the other end of the capacitor C3 is grounded, pin 16 of U2 is connected with one end of a resistor R12, pin 17 of U2 is connected with the other end of the resistor R12, one end of a capacitor C20 and one end of the resistor R11, the other end of the capacitor C20 is grounded, the other end of the resistor R11 is connected with one end of the capacitor C17, the other end of the capacitor C17 is connected with one end of the capacitor C33, one end of the capacitor C32, one end of the capacitor C31 and one end of the capacitor C30, the other end of the capacitor C33 is connected with the other end of the inductor L1 and one end of the capacitor C12, the other end of the capacitor C30 is connected with one end of the capacitor C13 and the other end of the inductor L2, the other ends of the capacitor C32, the other ends of the capacitor C31, the capacitor C12 and the other ends of the capacitor C13 are grounded, the 21 pin of the U2 is connected with one end of the crystal oscillator Y2 and one end of the capacitor C19, the 22 pin of the U2 is connected with the other end of the crystal oscillator Y2 and one end of the capacitor C14, the other ends of the capacitor C19 and the other ends of the capacitor C14 are grounded, the 24 pin of the U2 is connected with the 14 pin of the U1, and the 29, 30 and 31 pins of the U2 are respectively connected with the 17, 15 and 16 pins of the U1. The card swiping part mainly uses magnetic card data collected by a card swiping chip, and then uses a carrier mode to analyze corresponding data by mcu for identification.
As shown in fig. 8, the 485 communication circuit includes an RS485 communication interface chip MAX485 chip U4, pin 1 of U4 is connected with pin 30 of U1, pin 2 and pin 3 of U4 are connected with pin 23 of U1, pin 4 of U4 is connected with pin 31 of U1, pin 5 of U4 is grounded, pin 6 of U4 is connected with one end of resistor R14 and pin 5 of communication connector CON6, the other end of resistor R14 is connected with 3.3V power, pin 7 of U4 is connected with one end of resistor R13 and pin 6 of communication connector CON6, the other end of resistor R13 is grounded, pin 8 of U4 is connected with one end of capacitor C40 and is connected with 3.3V power, and the other end of capacitor C40 is grounded. The 485 communication part converts the signal into a signal which can be identified by mcu through a 485 chip, and then performs data interaction in a serial communication mode.
When the intelligent key is used, the intelligent key is inserted into the end part of the shell 1 and is tightly inserted and connected with the lock cylinder contact pin 4 in the lock cylinder metal cover, the intelligent key provides control signals and power supply for the electronic lock cylinder through the lock cylinder contact pin, the motor of the control chip port control lock body pulls open the elastic sheet, and the hasp of the handle is loosened to realize unlocking.
The passive electronic lock core can enable the electronic lock to keep a passive state in a normal passive state, and the electronic key is used for temporarily supplying power and communicating with the lock core of the electronic lock at any time when unlocking is needed, so that unlocking is realized, and energy is saved.
The foregoing description of the invention is merely exemplary of the invention. Various modifications or additions to the described embodiments may be made by those skilled in the art to which the invention pertains or in a similar manner, without departing from the spirit of the invention or beyond the scope of the invention as defined in the appended claims.
Claims (6)
1. A passive electronic lock core, characterized in that: the lock cylinder metal cover comprises a shell, a lock cylinder metal cover, a circuit board, lock cylinder pins, a plastic locking groove and a communication connecting piece, wherein one side of a main body part of the lock cylinder metal cover is provided with a containing cavity matched with the shape of the circuit board, the communication connecting piece is perpendicular to the circuit board and fixed on one side of the circuit board, the lock cylinder pins are perpendicularly fixed on the other side of the circuit board, one end part of the lock cylinder metal cover is outwards protruded and provided with a circular groove, the circular groove is provided with a through hole matched with the lock cylinder pins and communicated with the containing cavity, the circuit board is inserted into the containing cavity from the side of the containing cavity and transversely inserted into the through hole along the through hole on the lock cylinder metal cover, the plastic locking groove is a U-shaped plug, the other side of the containing cavity is provided with two slotted holes matched with the plastic locking groove, the U-shaped two plug arms of the plastic locking groove penetrate through and abut against one side of the circuit board to lock and fix the circuit board in the lock cylinder metal cover, the inner diameter of the shell is matched with the lock cylinder metal cover, one end part of the shell is provided with a through hole matched with the lock cylinder metal cover, the metal cover is inserted into the through hole, and the through hole is transversely inserted into the through hole from the side of the containing cavity into the shell, and is tightly fixed with the inner wall of the shell;
the circuit board is provided with a control circuit, a voltage conversion circuit, an electromagnetic valve control circuit, a buzzer control circuit, a card swiping control circuit and a 485 communication circuit, wherein the voltage conversion circuit is connected with the control circuit and used for converting voltage, the electromagnetic valve control circuit is connected with the control circuit and used for controlling the electromagnetic valve action of the electronic lock, the buzzer control circuit is connected with the control circuit and used for controlling the buzzer to work, the card swiping control circuit is connected with the control circuit and used for controlling the card swiping, and the 485 communication circuit is connected with the control circuit and used for providing a 485 communication interface; the electromagnetic valve control circuit comprises a D882 triode U5, wherein the base electrode of the U5 is connected with one end of a resistor R18, the other end of the resistor R18 is connected with a pin 10 of a U1, the emitter electrode of the U5 is grounded, the collector electrode of the U5 is connected with the anode of a diode D0, and the cathode of the diode D0 is connected with a 12V power supply.
2. A passive electronic lock cylinder as claimed in claim 1, wherein: the control circuit comprises an Atmega88PA chip U1, 7 pins of the U1 are connected with one end of a crystal oscillator tube XL1 and one end of a capacitor C2, 8 pins of the U1 are connected with the other end of the crystal oscillator tube XL1 and one end of a capacitor C5, the other end of the capacitor C2 and the other end of the capacitor C5 are grounded, 3 pins 5 and 21 pins of the U1 are grounded, 9 pins of the U1 are connected with one end of a resistor R9, the other end of the resistor R9 is connected with a cathode of a light emitting diode LED2, an anode of the light emitting diode LED2 is connected with a 3.3V power supply, 2 pins of the U1 is connected with one end of a resistor R10, the other end of the resistor R10 is connected with a cathode of the light emitting diode LED1, an anode of the light emitting diode LED1 is connected with a 3.3V power supply, 4 pins 6 and 18 pins of the U1 are connected with one end of the capacitor C8 and one end of the capacitor C10, and the other end of the capacitor C8 is grounded.
3. A passive electronic lock cylinder as claimed in claim 2, wherein: the voltage conversion circuit comprises a 78L05 three-terminal integrated voltage regulator chip U6 and an AAT322IIGV-3.3-2-T1 chip U7, wherein the 1 pin of the U6 is connected with a 5V power supply, the 2 pin of the U6 is grounded, the 3 pin of the U6 is connected with one end of a capacitor C15 and the cathode of a diode D1, the other end of the capacitor C15 is grounded, the anode of the diode D1 is connected with one end of a fuse F1, the other end of the fuse F1 outputs a 12V power supply, the 1 pin of the U7 is connected with one end of a resistor R16, one end of a capacitor C4 and is connected with the 5V power supply, the 3 pin of the U7 is connected with the other end of the resistor R16, the 2 pin of the U7 is connected with the other end of the capacitor C4 and is grounded, the 5 pin of the U7 is connected with one end of the capacitor C11 and outputs a 3.3V power supply, and the other end of the capacitor C11 is grounded.
4. A passive electronic lock cylinder as claimed in claim 2, wherein: the buzzer control circuit comprises an S8550 triode T1, wherein the base electrode of the T1 is connected with one end of a resistor R2, the other end of the resistor R2 is connected with the 11 pin of U1, the collector electrode of the T1 is grounded, the emitter electrode of the T1 is connected with one end of a buzzer BZ, and the other end of the buzzer BZ is connected with a 3.3V power supply.
5. A passive electronic lock cylinder as claimed in claim 2, wherein: the card swiping control circuit comprises a high-integration read-write card RC522 chip U2 in non-contact communication, pins 1, 4, 5, 10, 14 and 18 of the U2 are grounded, pins 2, 3, 9 and 32 of the U2 are connected with a 3.3V power supply, pin 6 of the U2 is connected with one end of a resistor R1 and pin 12 of the U1, the other end of the resistor R1 is connected with the 3.3V power supply, pin 11 of the U2 is connected with one end of an inductor L1, pin 13 of the U2 is connected with one end of the inductor L2, pin 15 of the U2 is connected with one end of a capacitor C3 and is connected with the 3.3V power supply, the other end of the capacitor C3 is grounded, pin 16 of the U2 is connected with one end of a resistor R12, pin 17 of the U2 is connected with the other end of the resistor R12, one end of the capacitor C20 and one end of the resistor R11, the other end of the capacitor C20 is grounded, and the other end of the resistor R11 is connected with one end of the capacitor C17, the other end of the capacitor C17 is connected with one end of the capacitor C33, one end of the capacitor C32, one end of the capacitor C31 and one end of the capacitor C30, the other end of the capacitor C33 is connected with the other end of the inductor L1 and one end of the capacitor C12, the other end of the capacitor C30 is connected with one end of the capacitor C13 and the other end of the inductor L2, the other ends of the capacitor C32, the other ends of the capacitor C31, the capacitor C12 and the other ends of the capacitor C13 are grounded, the 21 pin of the U2 is connected with one end of the crystal oscillator Y2 and one end of the capacitor C19, the 22 pin of the U2 is connected with the other end of the crystal oscillator Y2 and one end of the capacitor C14, the other ends of the capacitor C19 and the other ends of the capacitor C14 are grounded, the 24 pin of the U2 is connected with the 14 pin of the U1, and the 29, 30 and 31 pins of the U2 are respectively connected with the 17, 15 and 16 pins of the U1.
6. A passive electronic lock cylinder as claimed in claim 2, wherein: the 485 communication circuit comprises an RS485 communication interface chip MAX485 chip U4, a 1 pin of U4 is connected with a 30 pin of U1, a 2 pin and a 3 pin of U4 are connected with a 23 pin of U1, a 4 pin of U4 is connected with a 31 pin of U1, a 5 pin of U4 is grounded, a 6 pin of U4 is connected with one end of a resistor R14 and a 5 pin of a communication connector CON6, the other end of the resistor R14 is connected with a 3.3V power supply, a 7 pin of U4 is connected with one end of a resistor R13 and a 6 pin of a communication connector CON6, the other end of the resistor R13 is grounded, an 8 pin of U4 is connected with one end of a capacitor C40 and is connected with the 3.3V power supply, and the other end of the capacitor C40 is grounded.
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| CN110176092A (en) * | 2019-05-23 | 2019-08-27 | 杭州咸亨国际科研中心有限公司 | A kind of single-point communication method for unlocking and unlocking apparatus |
| CN110067451B (en) * | 2019-05-31 | 2024-03-05 | 瞬烯万变(苏州)科技有限公司 | Circuit and method for ensuring and controlling clutch separation by passive electronic lock cylinder |
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