CN100395424C - Minicomputer intelligent lockset system - Google Patents
Minicomputer intelligent lockset system Download PDFInfo
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- CN100395424C CN100395424C CNB2004100140501A CN200410014050A CN100395424C CN 100395424 C CN100395424 C CN 100395424C CN B2004100140501 A CNB2004100140501 A CN B2004100140501A CN 200410014050 A CN200410014050 A CN 200410014050A CN 100395424 C CN100395424 C CN 100395424C
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- dead bolt
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Abstract
The present invention relates to a microcomputer intelligent lock system which is composed of a keyboard circuit, a position driving circuit, a microprocessor, a lock head electromagnet driving circuit, a memory body, a protection circuit and a power supply control circuit, wherein the keyboard circuit, the position driving circuit and the memory body are all directly connected with the microprocessor; a buzzing and indicator light circuit, the lock head electromagnet driving circuit, the power supply control circuit and the protection circuit are all directly connected with the position driving circuit; the protection circuit controls the reading and writing of the memory body; codes are modified by the microprocessor circuit and a personal computer (PC) in an online mode; a constant-current electrical signal utilizes a thyristor to control the alternating current power of an electric lock; and a returning hook device is arranged in the electric lock in order to ensure the microcomputer intelligent lock system to automatically unlock when a door is closed. Because the present invention can automatically be unlocked, the protection circuit can prevent the memory body from being operated by mistake, and the wrong operation is caused by the switching-on operation and the switching-off operation; a lock is provided with an electronic switch and is not provided with drawn arcs or sparks; the longest digits of the input codes can reach 16; and therefore, the codes can be modified by the microcomputer intelligent lock system and the computer in the online mode.
Description
Technical field
The present invention relates to a kind of electronic-controlled installation, belong to electronic technology and areas of information technology.
Background technology
Shortcomings such as general mechanical lock ubiquity duplicates easily now, and safety performance is not strong, some people even just can not open most of mechanical locks with key; Though IC card lock has been realized intellectuality, easily stained in actual applications, easily to lose, product is not general, uses inconvenience.Existing multiple coded lock also exists some shortcomings: simple switching regulator coded lock, and the password figure place is few, revises inconvenience, and confidentiality is not strong.The coded lock of digital gate circuit is revised inconvenience, can not detect lack of wisdomization automatically.CUP controlling computer plate coded lock all can not be refuted with PC and connect, and intellectuality is restricted, and is difficult to reach the requirement of home intelligence.The Electric lock that preceding coding lock system generally uses does not have the automatic function of protecting that goes up, and closes to forget upward guarantor, pick-proof ability behind the door easily.What the drive circuit of a lot of electric locks used is transistor circuit, works under the inductive load situation, punctures easily and produces fault.What also have that some electric locks use is that A.C. contactor drives, and the arcing spark phenomenon often takes place in the contact, contact oxidation can take place in the course of time, burn and phenomenon such as glue, burn to death, and poor reliability fault rate height, the stability of a system is poor.
Summary of the invention
In order to overcome the prior art deficiency, the invention provides to access to your password unblanks, also can make and open the lock with the key, revise password by keyboard and the online dual mode of PC, automatically shutdown prevents malice examination sign indicating number, and tapered end is gone up automatically and protected, anti-theft pick-proof, a kind of microcomputer-recognized intelligent lock system of the automatic detection hardware fault of memory.
Technical solution of the present invention: mainly by 4*4 keyboard circuit, position latch, 8031 microprocessors, tapered end solenoid driver circuit, E
2PROM memory bank, holding circuit, power control circuit, electric lock, buzzing and LED light circuit, J1, J2 socket, socket J3, resistance R 8, resistance R 15, optocoupler U16, triode Q1, triode Q6, decoder U3, ungated integrated circuit U8, NAND gate integrated circuit U11, form with a door integrated circuit U14, NAND gate integrated circuit U17, ungated integrated circuit U18, bus driver U13 and U15; 8031 microprocessors directly read keypad information, and and E
2PROM two-way exchange data; 8031 microprocessors are being controlled the work that latch is driven in the position, by position latch direct control buzzing and LED light circuit, tapered end solenoid driver circuit, power control circuit and holding circuit; Holding circuit is directly being controlled E
2The read-write of PROM; Described 8031 microprocessor circuit part comprise serial communication circuit, it can with the online remotely modifying password of PC; Energy-conservation keyboard electric current when attonity of design is zero; Dc system is suspended on the alternating current, and dc signal utilizes IGCT control electric lock AC power; Be provided with back in the electric lock and collude device and guarantee to realize protecting on the automation at closing time.
The serial communication circuit of described and the online remotely modifying password of PC, comprise that 1 pin, the ground wire of integrated circuit U1A in the computer plate circuit, 3 pin of integrated circuit U2A are connected to 1,2,3 pin of socket J3 respectively, finally are connected to TXD, ground wire, the RXD signaling interface of PC COM1 or COM2 mouth by string line.
Described E
2The PROM holding circuit, in the time of can preventing Switching Power Supply to E
2PROM rewrites unintentionally, by E
216 pin of 20 pin of PROM and the end of connecting resistance R8 and optocoupler U16, the other end ground connection of R8,15 pin of U16 connect 3 pin of NAND gate integrated circuit U17, and 1 pin of U17 connects the P1.0 pin of CPU 8031, and 2 pin of U17 connect 2 pin of ungated integrated circuit U18,1 pin of U18 connects 14 pin of decoder U3,2 pin of U16 connect the emitter stage of triode Q1, and 1 pin of U16 is by R9 ground connection, and the colelctor electrode of Q1 connects+5V, the base stage of Q1 obtains forward bias by R10, and capacitor C 3 is connected between the base stage and ground of Q1.
Described keyboard is welded with no locking press button, one end ground connection, another terminated signal lines, holding wire passes through J1, the J2 socket, be connected to NAND gate circuit U11 and bus driver U13, the input of U15, the 8 pin output signals of NAND gate integrated circuit U11 are connected to INT0 or the INT1 of CPU 8031 after by not circuit U8 negate, bus driver U13, the U15 output inserts the P0 mouth data/address bus of CPU 8031, U13, the chip select signal of U15 is subjected to and door integrated circuit U14 output control, and the input of U14 connects 17 ends of CPU8031 and 4 pin or 5 pin of decoder U3 respectively.
Described electric lock solenoid driver circuit is by the end of the P1.6 pin connecting resistance R15 of CPU, the base stage of another termination triode Q6 of R15, the colelctor electrode of Q6 connects+the 5V power supply, the emitter stage of Q6 connects the gate pole of bidirectional thyristor KS20, the end of the negative electrode of KS20 and grounding wire and electromagnet coil K, the other end of electromagnet coil and the anode of KS20 are connected to the two ends of the 36V transformer time utmost point respectively.
Described electric lock mainly comprises fixedly magnetic circuit, armature, coil, dead bolt colludes device with returning, wherein fixedly be with the AC coil that is connected with the tapered end solenoid driver circuit in magnetic circuit and the armature, armature can rotate around the axis under the effect of coil and armature back-moving spring, movable rod connects armature and dead bolt, the dead bolt head is made up of dead bolt inclined-plane and rectangular column two parts, the terminal dead bolt bar that connects of dead bolt, the terminal chute that connects of dead bolt bar, the axle that movable rod one end protrudes is the slip shape in chute, the dead bolt bar is fixed with the unhook push rod, the back side outline line of unhook push rod has a slope, the latch hook front end has bossy body, bossy body rotates thereby drive latch hook in the outline line motion at the effect lower edge unhook push rod back side of spring, and dead bolt resets under the effect of dead bolt back-moving spring.
After adopting above technical scheme, the beneficial effect that the present invention reaches is: password figure place random length reaches as high as 16; Can be online with computer, realize the online modification password, for future function upgrading possibility is provided; Automatically go up and protect electronic unblanking; Automatic detection of stored device, indicator lamp reflects its state of the art; During switching on and shutting down, holding circuit can prevent E
2The maloperation of PROM; The electro-magnets of lockset circuit adopts electronic switching circuit, no arcing no-spark, and stable performance, safe and reliable.
Description of drawings
Fig. 1 is a lock system theory diagram of the present invention.
Fig. 2 is computer plate circuit theory diagrams of the present invention.
Fig. 3 is an electric lock mechanism map of the present invention.
In shown in Figure 3, fixedly magnetic circuit 1, moving armature 2, electromagnet coil 3, dead bolt 4, movable rod 5, latch hook protrudes 6, unhook push rod 7, latch hook spring 8, latch hook 9, dead bolt back-moving spring 10, armature back-moving spring 11, dead bolt inclined-plane 12, dead bolt rectangular column 13, chute 14, dead bolt bar 15.
The specific embodiment
Integrated package part: U1 is MC1489, and U2 is MC1488, and U3 is 74LS138, U4 is 2864A, and U5 is 8031, and U6 is 74LS373, U7 is 2764, and U8 is 74LS14, and U9, U10 are 74LS173, U11, U12 are 74LS30, U13, U15 are 74LS244, and U14 is 74LS32, and U16 is TLP521, U17 is 7400, and U18 is 7404.
Triode portion: Q1, Q2, Q3, Q4, Q5 are 9014 or 9013, and Q6 is 9013.
Active component: R1, R2, R3, R4, R5, R6, R7, R8 are 1K Ω, and R9 is 100 Ω, and R10 is 10K Ω, and R11, R12, R13, R14 are 500 Ω, and R15 is 10 Ω, 0.5W, and R18 is 47K Ω, and R19 is 8K Ω, and R81 is 100K Ω.
Capacitive part: C1, C2 are 3PF, and C3 is 100Uf, and C4 is 10Uf, and C5 is 0.01Uf, and other filtering and power purification all adopt 47uF electrochemical capacitor and bigger ceramic disc capacitor.
Electromagnet please be selected the 36V AC coil for use in the electric lock, and electric current should be less than 2A.
IGCT adopts KS20/500.
During work:
1, with the online remotely modifying password of PC aspect
Is sending handshake after the native system energising always, after PC is subjected to and confirms, will be newly, bit string such as Old Password returns native system.Native system is subjected to PC and passes back and necessary the processing such as compare after the information immediately, replaces Old Password and preserves if Old Password is correctly just used new password; Operation also will be revised situation such as success or not after finishing and issue PC.Connecting circuit work is as follows:
The TTL signal that the TXD pin of CPU 8031 will be sent is passed to MC1488 (U2), and MC1488 changes it into RS232 signal, issues the RXD pin of PC serial port by the serial port line.The TXD pin of PC serial port passes to 1 pin of native system MC1489 (U1) with the RS232 signal that sends by the serial port line, and MC1489 is converted into the Transistor-Transistor Logic level signal and is sent to 8031 RXD pin, thereby makes native system receive the information that PC sends.
2, E2PROM protection system aspect
When system energising part does not reset and outage moment, the electric pulse complexity, the signal confusion causes mistake to write to E2PROM easily, makes system unreliable, has therefore designed holding circuit.R10 and C3 have constituted delay circuit and the base stage of Q1 will be waited until after system reset is finished just obtain high level when connecting power supply.So the Q1 base stage in dangerous period at energising initial stage is a low level, Q1 ends, and first pair of optocoupler of TLP521 (U16) just ends, and 15 pin of U16 are high-impedance state, and under the effect of R81, the gating end of 2864 (U4) is high potential, and 2864 forbid read-write.The base stage of Q1 was high potential after system reset was finished, the Q1 conducting, and first pair of optocoupler conducting of U16,2864 gating end (20 pin) is received 3 ends of 7400 (U17) by optocoupler.Because 8031 P1.0 mouth goes out high level behind the system initialization, 2864 gating end (20 pin) directly is subjected to the chip select signal controlling of 74LS138.During shutdown, 8031 P1.0 mouth goes out low level, makes the 3 pin output of 7400 (U17) always be high level, and 2864 is disabled.
3, low-power consumption keyboard aspect
When key is not pressed, unsettled 74LS30 (U11) and 74LS30 (U12) think high level mutually NAND go out low level, after 74LS14 (U8) negate, be high level, can not cause that 8031 interrupt.
When key was pressed, J1 socket respective signal line was by this button ground connection, and U11 or U12 go out high level, are low level after 74LS14 (U8) negate, caused that 8031 interrupt carrying out the subprogram of reading keyboard.8031 P0 mouth reads keyboard signal by 74LS244 and judges key assignments.
4, electric lock drive circuit aspect
When not unblanking, 8031 P1.5 mouth goes out low level, and triode Q6 ends, and bidirectional thyristor KS20 loses gate current and ends.Electro-magnets of lockset K can not get the 36V alternating current, is failure to actuate.
When unblanking, 8031 P1.5 mouth goes out high level, triode Q6 conducting, and bidirectional thyristor KS20 obtains gate current and ends.Electro-magnets of lockset K obtains the 36V alternating current, unblanks.When closing, 8031 P1.5 mouth goes out low level, and triode Q6 ends, and bidirectional thyristor KS20 loses gate current, and KS20 closes when the 36V alternating current is crossed " zero " point, and K dead electricity lock resets.
5, tapered end self-insurance explanation
Lockset utilizes the electromagnet principle, and micro computer signals and drives the tapered end electromagnet coil 3 that IGCT is connected interchange 36V, and armature 2 adhesives retract tapered end 4, and door is opened.Control signal cancellation back coil 3 dead electricity, tapered end 4 will stretch out under the effect of spring, but (expose lock and establish inclined-plane 12 because the effect of inner latch hook 9 can only be stretched out half, in order to closing the door), at closing time, dead bolt inclined-plane 12 is because the dead bolt shell on the collision doorframe is pushed up back a part, unhook push rod 7 retreats, latch hook 9 is chosen out on its inclined-plane, back, under the effect of spring 10, dead bolt is ejected fully, stylolitic part 13 behind the inclined-plane 12 exposes and falls in the dead bolt shell, similarly to traditional security door plays the anti-theft pick-proof effect.The lockset of my design is compared with traditional security door lockset has the effect of protecting of going up automatically.
During operation, press start button, power supply indicator is bright, and system pipes twice, and (illustrative system self check by) can normal running.By " input " key, input indicator is bright.The input password is confirmed by " affirmation " key behind the password end of input.
After correct input password and the affirmation, door is opened automatically, locks after about 2 seconds to reset.Available keyboard is revised password: after door is correctly opened, pin three seconds of " modification " key immediately, stop up to tweeting sound, unclamp " modification " key.By " affirmation " key, promptly revise success by " affirmation " key behind the heavily defeated new password behind the input new password.Available PC is revised password: the COM1 or the COM2 mouth that will install serial line interface and PC with supporting serial port line connect.Open computer, operation " micro computer lock system password update routine " fills original code and new password and checks and use new password, starts the microcomputer-recognized intelligent lock system then.Click the transmission button on the PC interface, system automatic detecting serial slogan, communication finishes in about one minute.The below of program window shows feedback informations such as performance automatically.Shutdown: not operation that system starts back about 10 seconds, will close lock system automatically.Pressing " closing key " shuts down immediately.Restart:, restart immediately by " restarting " key.
Claims (6)
1. a microcomputer-recognized intelligent lock system is characterized in that: mainly by 4*4 keyboard circuit, position latch, 8031 microprocessors, tapered end solenoid driver circuit, E
2PROM memory bank, holding circuit, power control circuit, electric lock, buzzing and LED light circuit, J1, J2 socket, socket J3, resistance R 8, resistance R 15, optocoupler U16, triode Q1, triode Q6, decoder U3, ungated integrated circuit U8, NAND gate integrated circuit U11, form with a door integrated circuit U14, NAND gate integrated circuit U17, ungated integrated circuit U18, bus driver U13 and U15; Keyboard circuit, position latch, E
2The PROM memory bank all directly links to each other with 8031 microprocessors; Buzzing and LED light circuit, tapered end solenoid driver circuit, power control circuit, holding circuit all directly link to each other with the position latch; Holding circuit is directly being controlled E
2The read-write of PROM; Described 8031 microprocessor circuit part comprise serial communication circuit, it can with the online remotely modifying password of PC; Energy-conservation keyboard electric current when attonity of design is zero; Dc system is suspended on the alternating current, and dc signal utilizes IGCT control electric lock AC power; Be provided with back in the electric lock and collude device and guarantee to realize protecting on the automation at closing time.
2. the described a kind of microcomputer-recognized intelligent lock system of claim 1, it is characterized in that: described serial communication circuit comprises that 1 pin, the ground wire of integrated circuit U1A, 3 pin of integrated circuit U2A are connected to 1,2,3 pin of socket J3 respectively, finally are connected to TXD, ground wire, the RXD signaling interface of PC COM1 or COM2 mouth by string line.
3. the described a kind of microcomputer-recognized intelligent lock system of claim 1 is characterized in that: described E
2The PROM holding circuit, in the time of can preventing Switching Power Supply to E
2PROM rewrites unintentionally, by holding circuit E
216 pin of 20 pin of PROM and the end of connecting resistance R8 and optocoupler U16, the other end ground connection of resistance R 8,15 pin of optocoupler U16 connect 3 pin of NAND gate integrated circuit U17,1 pin of NAND gate integrated circuit U17 connects the P1.0 pin of CPU 8031,2 pin of NAND gate integrated circuit U17 connect 2 pin of ungated integrated circuit U18,1 pin of ungated integrated circuit U18 connects 14 pin of decoder U3,2 pin of optocoupler U16 connect the emitter stage of triode Q1,1 pin of optocoupler U16 is by resistance R 9 ground connection, the colelctor electrode of triode Q1 connects+5V, the base stage of triode Q1 obtains forward bias by resistance R 10, and capacitor C 3 is connected between the base stage and ground of triode Q1.
4. the described a kind of microcomputer-recognized intelligent lock system of claim 1, it is characterized in that: described keyboard is welded with no locking press button, one end ground connection, another terminated signal lines, holding wire passes through J1, the J2 socket, be connected to NAND gate integrated circuit U11 and bus driver U13, the input of U15, the 8 pin output signals of NAND gate integrated circuit U11 are connected to the INTO or the INT1 of microprocessor CPU 8031 after by ungated integrated circuit U8 negate, bus driver U13, the U15 output inserts the P0 mouth data/address bus of microprocessor CPU 8031, bus driver U13, the chip select signal of U15 is subjected to and door integrated circuit U14 output control, connects 17 ends of microprocessor CPU 8031 and 4 pin or 5 pin of decoder U3 respectively with the input of door integrated circuit U14.
5. the described a kind of microcomputer-recognized intelligent lock system of claim 1, it is characterized in that: described electric lock solenoid driver circuit is by the end of the P1.6 pin connecting resistance R15 of microprocessor CPU 8031, the base stage of another termination triode Q6 of resistance R 15, the colelctor electrode of triode Q6 connects+the 5V power supply, the emitter stage of triode Q6 connects the gate pole of bidirectional thyristor KS20, the end of the negative electrode of bidirectional thyristor KS20 and grounding wire and electromagnet coil K, the anode of the other end of electromagnet coil and bidirectional thyristor KS20 are connected to the two ends of the 36V transformer time utmost point respectively.
6. the described a kind of microcomputer-recognized intelligent lock system of claim 1, it is characterized in that: described electric lock mainly comprises fixedly magnetic circuit (1), armature (2), coil (3), dead bolt (4) and return and to collude device, wherein fixedly be with the AC coil (3) that is connected with the tapered end solenoid driver circuit in magnetic circuit (1) and the armature (2), armature (2) can rotate around the axis under the effect of coil (3) and armature back-moving spring (11), movable rod (5) connects armature (2) and dead bolt (4), dead bolt (4) head is made up of dead bolt inclined-plane (12) and rectangular column (13) two parts, the terminal dead bolt bar (15) that connects of dead bolt (4), the terminal chute (14) that connects of dead bolt bar (15), the axle that movable rod (5) one ends protrude is the slip shape in chute (14), dead bolt bar (15) is fixed with unhook push rod (7), the back side outline line of unhook push rod (7) has a slope, latch hook (9) front end has bossy body (6), bossy body (6) is in the outline line motion at effect lower edge unhook push rod (7) back side of spring (8), rotate thereby drive latch hook (9), dead bolt (4) resets under the effect of dead bolt back-moving spring (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100140501A CN100395424C (en) | 2004-02-16 | 2004-02-16 | Minicomputer intelligent lockset system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100140501A CN100395424C (en) | 2004-02-16 | 2004-02-16 | Minicomputer intelligent lockset system |
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| Publication Number | Publication Date |
|---|---|
| CN1560407A CN1560407A (en) | 2005-01-05 |
| CN100395424C true CN100395424C (en) | 2008-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100140501A Expired - Fee Related CN100395424C (en) | 2004-02-16 | 2004-02-16 | Minicomputer intelligent lockset system |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102242584B (en) * | 2011-06-09 | 2013-07-03 | 奉化诚兴道电子科技有限公司 | Control chip of coded lock |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1158750A (en) * | 1981-07-06 | 1983-12-13 | Kenji Iio | Electronic locking device |
| US4812841A (en) * | 1987-05-26 | 1989-03-14 | Chen Hai C | Computer-controlled password lock |
| CN2067307U (en) * | 1990-05-17 | 1990-12-12 | 中国计量科学研究院 | Computer permutation lock |
| CN1253220A (en) * | 1998-11-09 | 2000-05-17 | 深圳蛇口诚意机电设备有限公司 | Intelligent door lock and method for automatically fitting its key and modifying key cipher |
| CN2383920Y (en) * | 1999-02-23 | 2000-06-21 | 陈俊毅 | Controller for door permutation lock |
| US6374653B1 (en) * | 1997-12-22 | 2002-04-23 | Security People, Inc. | Mechanical/electronic lock and key therefor |
| CN2675805Y (en) * | 2004-02-16 | 2005-02-02 | 焦悦 | Microcomputer intelligent lock |
-
2004
- 2004-02-16 CN CNB2004100140501A patent/CN100395424C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1158750A (en) * | 1981-07-06 | 1983-12-13 | Kenji Iio | Electronic locking device |
| US4812841A (en) * | 1987-05-26 | 1989-03-14 | Chen Hai C | Computer-controlled password lock |
| CN2067307U (en) * | 1990-05-17 | 1990-12-12 | 中国计量科学研究院 | Computer permutation lock |
| US6374653B1 (en) * | 1997-12-22 | 2002-04-23 | Security People, Inc. | Mechanical/electronic lock and key therefor |
| CN1253220A (en) * | 1998-11-09 | 2000-05-17 | 深圳蛇口诚意机电设备有限公司 | Intelligent door lock and method for automatically fitting its key and modifying key cipher |
| CN2383920Y (en) * | 1999-02-23 | 2000-06-21 | 陈俊毅 | Controller for door permutation lock |
| CN2675805Y (en) * | 2004-02-16 | 2005-02-02 | 焦悦 | Microcomputer intelligent lock |
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| Publication number | Publication date |
|---|---|
| CN1560407A (en) | 2005-01-05 |
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Granted publication date: 20080618 Termination date: 20160216 |