CN2330748Y - Self-dependent electronic cipher lock - Google Patents
Self-dependent electronic cipher lock Download PDFInfo
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- CN2330748Y CN2330748Y CN98201468.6U CN98201468U CN2330748Y CN 2330748 Y CN2330748 Y CN 2330748Y CN 98201468 U CN98201468 U CN 98201468U CN 2330748 Y CN2330748 Y CN 2330748Y
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Abstract
The utility model relates to a self-dependent electronic cipher lock which comprises a key, a lock body, a lock tongue, an unlocking device, a random cipher generator, a control circuit and a battery, wherein, the control circuit is composed of a single chip computer, a power supply controlling part, a memory in the utility model, an unlocking device driving circuit, a key socket and a keyboard. When the utility model is unlocked, ciphers do not need to be inputted, a user can prepare a new legal key or clear the legitimacy of the original key; the utility model automatically changes the ciphers of the key after unlocked so as to have using safety enhancement.
Description
The utility model relates to a kind of autonomous type electronic password lock, belongs to E05B49/00 class coded lock field.
The kind of electronic password lock is a lot: keyboard-type, light-card formula, magnetic card type, IC-card formula ...The keyboard-type electronic password lock is owing to need import password at every turn when unblanking, this just makes: 1 requires user's hypermnesia password; 2 complex operations; 3. easily give away secrets in the operating process, thereby the use of keyboard-type electronic password lock has very big limitation.Light-card formula, magnetic card type, the IC-card formula electronic password lock that uses do not require user's hypermnesia password at present, simple to operate, be difficult for giving away secrets, but owing to need seek help from special equipment and the professional and technical personnel could prepare or remove key, so the use of such electronic password lock also has very big limitation.
In addition, the electronic password lock that uses at present also has the following disadvantages: 1. standby opening ways is mechanical type, and its poor stability can't embody the high security of electronic password lock.2. because the key cipher that uses is fixed password, when allowing one key operated many when passing through the lock of mandate, its deterioration of safety.
In order to overcome the above-mentioned deficiency of existing electronic password lock, the purpose of this utility model just provides the electronic password lock with following major function:
1. the user can think whenever need, and need not to seek help from the legitimacy that special equipment and professional and technical personnel just can prepare legal new key independently or remove original key.
2. need not to input password when unblanking, the simple to operate and worries of exempting memory cipher.
3. provide and whenever open once the lock function of a key cipher of change automatically, thereby improve the safety in utilization of lock.
For achieving the above object, the utility model adopts following design scheme:
The autonomous type electronic password lock comprises key, lock body, dead bolt, opening device, random cipher generator, main control circuit and battery, it is characterized in that: described main control circuit is made up of single-chip microcomputer, lock built-in storage, power control part branch, opening device drive circuit, master key socket, keyboard, and wherein: the clock mouth of described lock built-in storage and data port connect two LPTs of described single-chip microcomputer respectively; The input that described power control part divides connects described battery, the described master key socket of control termination; The input of described opening device drive circuit connects the start signal output of described single-chip microcomputer, and output connects described opening device; Each pin of described master key socket connects described battery, the control end of power control part branch, the LPT of single-chip microcomputer respectively; Described keyboard connects the keyboard mouth of described single-chip microcomputer.
In other implementing measures of the present utility model:
Described random cipher generator is realized or the random cipher generator circuit by software, this random code generator circuit is composed in series by noise generator, noise amplifier and comparator, the output of this comparator connects the LPT of described single-chip microcomputer, and noise generator is at least a element of selecting from resistor, diode, triode.
Described keyboard is made of one or more button.
The serial port of described single-chip microcomputer is connected to the serial communication drive circuit.
Also can comprise adding electrical interface, its power pin connects described battery through diode.
Also can comprise the standby control circuit that constitutes by second singlechip, the second lock built-in storage, standby key socket, the second opening device drive circuit, the same main control circuit of its annexation, the output of the second opening device drive circuit connects described opening device.
Described key is electron key or IC-card, and described master key socket and standby key socket correspondingly are electron key socket or IC-card seat.
The utility model utilizes random code generator to generate key cipher, provide whenever to open once the lock function of a key cipher of change automatically, and cooperate keyboard to prepare or remove key, thereby make electronic cipher be locked in preparation or remove realize on the key real autonomous.
Below in conjunction with drawings and Examples the utility model is elaborated.
Fig. 1 is the general structure schematic diagram of autonomous type electronic password lock.
The interface schematic diagram of Fig. 2 for being connected with each parts on the primary, spare control circuit board.
Fig. 3 represents the software flow pattern of autonomous type electronic password lock.
Fig. 4 represents the circuit diagram of autonomous type electronic password lock master control circuit board.
Fig. 5 represents the circuit diagram of autonomous type electronic password lock standby control circuit plate.
See also Fig. 1.Standby key seat 5.1), key the utility model comprises lock body 1, dead bolt 2, opening device 3, master control circuit board 4, standby control circuit plate 5, battery pack 6, powers up mouthfuls 7 outward, the independent peripheral components of the independent peripheral components (comprising: master key seat 4.1, indicator lamp 4.2 and keyboard 4.3) of master control circuit board 4, standby control circuit plate 5 (comprising:.Opening device 3 wherein, battery pack 6 and the outer mouth 7 that powers up are again the public peripheral components of master control circuit board 4 and standby control circuit plate 5 simultaneously.
See also Fig. 2.The main control circuit 4.4 of master control circuit board 4 connects master key seated connection mouth 4.5, serial communication interface 4.6, power interface 6.1, additional power source interface 7.1, opening device interface 3.1, indicator lamp and buzzer interface 4.7, keyboard interface 4.8, spare interface 4.9, and the control circuit 5.2 of standby control circuit plate 5 connects standby key seated connection mouth 5.3, power interface 6.2, additional power source interface 7.2, opening device interface 3.2.Wherein: master key seated connection mouth 4.5 and standby key seated connection mouth 5.3 are 7 needle sockets, are connected with master key seat 4.1 and standby key seat 5.1 respectively; Power interface 6.1 and 6.2 is 2 needle sockets, joins with battery pack 6; Additional power source interface 7.1 and 7.2 is 2 pins or 3 needle sockets, and powers up mouthfuls 7 outward and joins; Opening device interface 3.1 and 3.2 is 2 needle sockets, joins with opening device 3; Indicator lamp and buzzer interface 4.7 are 3 pins or the above socket of 3 pins, join with indicator lamp 4.2 and buzzer; Keyboard interface 4.8 is 2 pins or the above socket of 2 pins, joins with keyboard 4.3; Serial communication interface 4.6 is 3 pins or the above socket of 3 pins, joins with the PERCOM peripheral communication cable; Spare interface 4.9 is 2 pins or the above socket of 2 pins, extended function after being used for.
See also Fig. 4.Main control circuit of the present utility model by single-chip microcomputer IC1, lock built-in storage IC2, power control part divide 4.43, random code generator part 4.45, opening device drive circuit 4.44, serial communication drive circuit 4.41 form IC1 and IC2 formation single chip part 4.42.Peripheral interface unit comprises master key seated connection mouth 4.5, battery interface 6.1, additional power source interface 7.1, opening device interface 3.1, indicator lamp and buzzer interface 4.7, keyboard interface 4.8, serial communication interface 4.6 and spare interface 4.9.Wherein: two LPTs that the clock mouth of lock built-in storage IC2 and data port meet single-chip microcomputer IC1 respectively; Power control part divides 4.43 input to connect battery 6, control termination master key socket 4.5; The input of opening device drive circuit 4.44 connects the start signal output of single-chip microcomputer IC1, and output connects opening device 3; Each pin of master key socket 4.5 connects battery 6 respectively, power control part divides 4.43 control end, the LPT of single-chip microcomputer IC1; Keyboard interface 4.8 connects the keyboard mouth of single-chip microcomputer.
In single chip part 4.42, constitute reset circuit by resistance R 1, diode D1 and capacitor C 3: its input meets power supply VCC, and output connects the S01 pin of single-chip microcomputer IC1; Constitute oscillating circuit by capacitor C 1, C2 and crystal CZ1: the two ends of crystal CZ1 connect S04 and the S05 pin of single-chip microcomputer IC1 respectively; Lock built-in storage IC2 is a nonvolatile memory: clock mouth M05 pin and data port M06 pin connect two LPT S17 and the S16 pin of single-chip microcomputer IC1 respectively, and M04 and M08 pin be ground connection and power supply VCC respectively; The S10 pin ground connection of single-chip microcomputer IC1, the S20 pin meets power supply VCC.
Power control part divides 1 end of 4.43 input termination battery interface 6.1, output termination power VCC, 2 ends of control termination master key seated connection mouth 4.5: the emitter stage of triode Q1 connects 1 end of power interface 6.1, and colelctor electrode meets power supply VCC, connects the colelctor electrode of triode Q0 behind the base stage series resistor R2; The grounded emitter of triode Q0 connects 2 ends of master key seated connection mouth 4.5 behind the base stage series resistor R4; 2 ends of the positive termination master key seated connection mouth 4.5 of capacitor C 5, negativing ending grounding; Resistance R 3 is in parallel with capacitor C 5.
Opening device drive circuit 4.44 is made up of triode Q3 and resistance R 5: the end of the start signal output S08 pin connecting resistance R5 of single-chip microcomputer IC1, the base stage of another termination triode Q3 of resistance R 5, the emitter stage of triode Q3 meets power supply VCC, and colelctor electrode connects 1 pin of opening device interface 3.1; Opening device drives signal and is sent through 1 pin of opening device interface 3.1 by the colelctor electrode of triode Q3.
In serial communication driving circuit section 4.41, data inputs drives to be made up of resistance R 6 and triode Q4: data input signal is through 2 pin of serial communication interface 4.6 end to resistance R 6, the base stage of another termination triode Q4 of resistance R 6, the grounded emitter of triode Q4, colelctor electrode connect the S02 pin of single-chip microcomputer IC1; Data output drives to be made up of resistance R 7 and triode Q5: the S03 pin of a termination single-chip microcomputer IC1 of resistance R 7, and the base stage of another termination triode Q5 of resistance R 7, the emitter stage of triode Q5 meets power supply VCC, and colelctor electrode connects 3 pin of serial communication interface 4.6; Data output signal is sent through 3 pin of serial communication interface 4.6 by the colelctor electrode of triode Q5.
Random signal generator 4.45 is composed in series by noise generator NS, noise amplifier OP and comparator C MP.It is big characteristics that noise generator is introduced this lock, the autonomous operation mode that has had it that this lock is realized is simplified, and can realize whenever opening once password of lock change: the end ground connection of noise generator NS connects the input of noise amplifier 0P after the other end serial connection capacitor C 4; The input of noise amplifier 0P is connected to an end of resistance R 12 simultaneously, and the other end of R12 is connected to the central point of the bleeder circuit that is made of resistance R 10 and R11; Resistance R 10 and R11 constitute bleeder circuit, the end ground connection of R10, and the end of another termination R11, another termination power VCC of R11, the interface of R10 and R11 is the central point of bleeder circuit; The input of the output termination comparator C MP of noise amplifier OP; The central point of the bleeder circuit that another input connecting resistance R10 of comparator C MP and R11 constitute, the output of comparator C MP connects the S15 pin of single-chip microcomputer IC1; Noise generator NS is made of at least a noise producing component, as resistance, Zener diode (BZV16,1N5353BY series ...) and triode (2N5401,9012 ...) wait and can be used as the noise producing component, what use in this circuit is Zener diode; Noise amplifier OP by the broad band amplifier integrated package (LM324, LM2904 ...) constitute; Comparator C MP by the comparator integrated package (LM339, LM2903 ...) constitute; If comparator (as the 89C2051 of ATMEL) is contained in used single-chip microcomputer inside, above-mentioned comparator C MP can save.The course of work of random signal generator 4.45 is: the noise signal that noise generator NS produces is delivered to broad band amplifier OP and is amplified, and is read in by single-chip microcomputer IC1 after comparator C MP becomes randomly pulsed phase signal.Because single-chip microcomputer much smaller than noise bandwidth (＜1/100), thereby can Approximate Equivalent be sampling to desirable white noise to this signals sampling frequency, the random code Approximate Equivalent of generation is desirable random code.
1 pin of master key jack interface 4.5 and 1 pin of battery interface 6.1 join, 2 pin of master key jack interface 4.5 and the anode of capacitor C 5 join, and 3 pin are standby pin, and 4 pin meet power supply VCC, 5,6 pin join 7 pin ground connection with S19 pin and the S18 pin of single-chip microcomputer IC1 respectively.When key inserted master key socket 4.1,1 pin of master key jack interface 4.5 was connected with 2 pin by the switch on connecting line and the master key socket 4.1; 5 pin of master key jack interface 4.5 and 6 pin join with the data port and the clock mouth of key respectively by connecting line and master key socket 4.1.
1 pin of additional power source interface 7.1 and the anode of diode D2 join, and 1 pin of the negative electrode of diode D2 and battery interface 6.1 joins, 2 pin ground connection of additional power source interface 7.1.
1～3 pin of keyboard interface 4.8 connects S14～S12 pin of single-chip microcomputer IC1,4 pin ground connection respectively.
Indicator lamp and buzzer interface 4.7 are used for external indicator lamp 4.2 and buzzer BZ, and so that sound and light signal to be provided: the S06 pin of single-chip microcomputer IC1 is connected to the negative terminal of luminous tube LED1, the positive termination power VCC of LED1 by 1 pin of series resistor R8 and interface 4.7; The S07 pin of single-chip microcomputer IC1 is connected to the negative terminal of luminous tube LED2, the positive termination power VCC of LED2 by 2 pin of series resistor R9 and interface 4.7; The S07 pin of single-chip microcomputer IC1 is connected to the end of buzzer BZ, another termination power VCC of buzzer by 3 pin of interface 4.7.
The adoptable kind of single-chip microcomputer IC1 is a lot of in the circuit, as MC6800 series, INTEL8051 series ... Deng.Lock built-in storage IC2 adoptable kind is also a lot, as 93C06,93C46,24C04,24C16 ... Deng.
Key of the present utility model can adopt IC-card, also can adopt electron key.Key divides normal key and other key of particular stage (other key of particular stage such as master key) two big classes, and its difference is inner data difference.In the internal storage of normal key, have: 1. one group of normal key condition code, 2. the lock number more than a group, the 3. key number more than a group, the 4. key cipher more than a group.In the internal storage of master key, have: 1. one group of master key condition code, 2. one group of 12 main password.Corresponding to normal key and master key, in the internal storage IC2 of lock, have: 1. one group of lock number, 2. one group lock out factory's password, 3. one group of 12 main password, the 4. normal key password more than a group.
In the coded lock of the present utility model software is housed, narrates the course of work below in conjunction with Fig. 3:
When key inserts master key seat 4.1, power switch on the master key seat 4.1 is connected, thereby 1 pin of master key seated connection mouth 4.5 and 2 pin are connected, and the voltage of battery pack 6 is delivered to the input (anode of capacitor C 5) of power control circuit 4.43 by 1 pin of power interface 6.1, to capacitor C 5 chargings.The voltage at capacitor C 5 two ends is added to the base stage of triode Q0 by resistance R 4, makes the Q0 conducting, and makes triode Q1 conducting by resistance R 2.The conducting of Q1 makes the voltage of battery pack 6 be added to power supply VCC, thereby makes entire circuit enter duty.When key was extracted, the electricity of being deposited with electric capacity C5 was kept conducting power down after 5 to 10 seconds of triode Q0 and Q1.So both can power saving, the application life of having improved circuit again.
According to the classification difference of the key that inserts master key seat 4.1 and the state difference of keyboard 4.3, the working programme that single-chip microcomputer IC1 starts is also different:
When ㈠ enters duty when circuit, if no key is pressed on the keyboard 4.3, then single-chip microcomputer IC1 starts the working programme of unblanking: LPT S19 by single-chip microcomputer IC1 and S18 (this bipod joins with the data port and the clock mouth of key respectively by master key seated connection mouth 4.5, connecting line and master key socket 4.1) read the content of internal storage in the key, judge whether its tagged word is correct.As if correct, take out one group of password of corresponding this lock code name in the key, then, read the content of locking built-in storage IC2 by data port and the clock mouth of locking built-in storage IC2, from lock built-in storage IC2, take out one group of password of corresponding key code name and check; If password conforms to, then the S08 pin of single-chip microcomputer IC1 becomes low level, drives opening device 3 by opening device driving circuit section 4.44 and opening device interface 3.1, opens dead bolt, finishes and unblanks, thereby realized inputing the purpose that password can be unblanked.Opening device can be by electromagnet or motor as power source.
(1) be normal key as if what insert master key seat 4.1, when password check conforms to, single-chip microcomputer IC1 can read a new random cipher immediately from random code generator 4.45, or by new random cipher of software generation, change the corresponding password content in lock built-in storage IC2 and the normal key internal storage respectively, just can realize whenever opening once password of lock change.In order to realize that a key opens manyly the locks that use different passwords, and realize whenever opening once password of lock change, can in a key internal storage, store the different passwords of locking code names of many groups.Equally in order to realize that a lock can be by many using the key operated of different passwords, and realize whenever opening once password of lock change, can be in the lock built-in storage passwords of the different key code names of the many groups of storage.
(2) if adopt fixed password (after promptly unblanking not Change Password) at every turn, or what insert master key seat 4.1 is master key, then need not to generate a new random cipher and goes to change respectively corresponding password content in lock built-in storage IC2 and the key internal storage.
(2) when circuit enters duty, there is key to press on the keyboard 4.3, according to the classification difference of the key that inserts master key seat 4.1, single-chip microcomputer IC1 starts different bitting working programmes:
When (1) key of insertion master key seat 4.1 is normal key, single-chip microcomputer IC1 judges by the content that its LPT S19 and S18 (this bipod joins with the data port and the clock mouth of key respectively by master key seated connection mouth 4.5, connecting line and master key socket 4.1) read internal storage in the key whether its tagged word is correct.If correct, then single-chip microcomputer IC1 points out by LED1.After keying in main password by keyboard 4.3 this moment, the content that data port and the clock mouth of single-chip microcomputer IC1 by lock built-in storage IC2 reads built-in storage IC2 in the lock is taken out corresponding main password and is checked.If password conforms to, then single-chip microcomputer IC1 points out by LED1 once more.After this key in key number by keyboard 4.3.When if the key number of keying in is not more than the maximum effectively key number of lock, single-chip microcomputer IC1 can read a new random cipher immediately from random code generator 4.45, or by new random cipher of software generation, or manually key in a new password by keyboard 43, write the units corresponding in lock internal storage IC2 and the normal key internal storage respectively, thereby realize autonomous type bitting function.
When (2) key of insertion master key seat 4.1 is master key, single-chip microcomputer IC1 judges by the content that its LPT S19 and S18 (this bipod joins with the data port and the clock mouth of key respectively by master key seated connection mouth 4.5 connecting lines and master key socket 4.1) read internal storage in the master key whether its tagged word is correct.As if correct, take out the main password of corresponding this lock code name in the master key, data port and the clock mouth by lock built-in storage IC2 reads the content of locking built-in storage IC2 then, therefrom takes out corresponding main password and checks.If password conforms to, then single-chip microcomputer IC1 points out by LED1.After this master key is changed to normal key, and keys in key number by keyboard 4.3.When if the key number of keying in is not more than the maximum effectively key number of lock, single-chip microcomputer IC1 can read a new random cipher immediately from random code generator 4.45, or by new random cipher of software generation, or manually key in a new password by keyboard 4.3, write the units corresponding of internal storage in lock built-in storage IC2 and the normal key respectively, thereby realize autonomous type bitting function.The difference of the mode of this mode and front is: the former need input main password but need not master key, and the latter does not need to input main password but needs master key.
In above-mentioned bitting process if the key number of keying in by keyboard 4.3 during greater than the maximum effectively key number of lock, by the difference of key entry data, can be realized multiple function, for example:
1. change main password: this function can be in the main password of change lock, the main password in the change master key, or make new master key.
2. remove single power that normal key is opened this lock: make single normal key if just can't open this lock without preparation again.This function is particularly suitable for after certain normal key is lost, and removes the unit relevant with this normal key among the lock internal storage IC2, thereby removes the power that this normal key is opened this lock; Or when certain normal key is not lost, the unit relevant in removing lock internal storage IC2 with this normal key, thereby when removing this normal key and open the power of this lock, will empty with the memory cell of this phase-locked pass in this normal key internal storage.
3. the normal key that clears all is opened the power of this lock: make the normal key in whole former uses just can't open this lock without preparing again.This function is particularly suitable for when locking more the change hands for certain, removes the whole memory cell relevant with normal key among the lock internal storage IC2, thereby removes the power that the normal key in the former use is opened this lock.
Single-chip microcomputer IC1 provides various sound and light signals by indicator lamp LED1, indicator lamp LED2 and buzzer BZ, (indicator lamp LED2 is bright as illegal key, while buzzer BZ sound), low-voltage warning (indicator lamp LED1 and indicator lamp LED2 are glittering, and buzzer BZ rings simultaneously), normally unblank (indicator lamp LED1 is bright) etc.
It is in order to produce key cipher that the utility model uses the purpose of random cipher generator, so it also can be realized by software.In addition, if only use when producing key cipher and using fixed password, then the random cipher generator can be saved with the keyboard that locks band.
Serial communication driving circuit section 4.41 is used for the serial communication data signal levels of single-chip microcomputer is converted to the data signal levels that is suitable for transmitting on transmission line: input drives to be made up of resistance R 6 and triode Q4, data output drives to be made up of resistance R 7 and triode Q5, and transmission line is connected on the serial communication interface 4.6.Utilize the serial communication port of single-chip microcomputer, the information of unblanking can be spread out of, also can realize remote bitting, remote clear key and unblank at a distance etc. by serial communication port.
If no remote bitting, clearly key and demand such as unblank, then serial communication driving circuit section can be saved.
Adding electrical interface is to the reserve support of battery supply in locking, and can accept or reject as required.
Spare interface is used for connecing from now on expansion equipment, as: display and switch door checkout gear etc.
Also can have standby control circuit shown in Figure 5 in the utility model, this circuit is the reduced form of main control circuit, it comprise second singlechip IC1 ', the second lock built-in storage IC2 ', the second opening device drive circuit 4.44 ', standby key socket 5.3, battery interface 6.2, additional power source interface 7.2 and opening device interface 3.2.The same main control circuit of its annexation, the second opening device drive circuit 4.44 ' output connect opening device 3.
In single chip part CPU ', by resistance R 1 ', diode D1 ' and capacitor C 3 ' constitute reset circuit: its input meets power supply VCC ', and output connects the S01 pin of single-chip microcomputer IC1 '; By capacitor C 1 ', C2 ' and crystal CZ1 ' constitute oscillating circuit: the two ends of crystal CZ1 ' connect S04 and the S05 pin of single-chip microcomputer IC1 ' respectively; IC2 ' is a nonvolatile memory: clock mouth and data port M05 and M06 pin connect two LPT S17 and the S16 pin of single-chip microcomputer IC1 ' respectively, and M04 and M08 pin be ground connection and power supply VCC ' respectively; The S10 pin ground connection of single-chip microcomputer IC1 ', the S20 pin meets power supply VCC '.
Opening device drive circuit 4.44 ' by triode Q3 ' and resistance R 5 ' form: the end of the start signal output S09 pin connecting resistance R5 ' of single-chip microcomputer IC1 ', resistance R 5 ' the base stage of another termination triode Q3 ', the emitter stage of triode Q3 ' meets power supply VCC ', and colelctor electrode connects 1 pin of opening device interface 3.2.Opening device drives signal and is sent through 1 pin of opening device interface 3.2 by the colelctor electrode of triode Q3 '.
1 pin of standby key jack interface 5.3 connects the negative terminal of diode D2 ', 1 pin of the anode of diode D2 ' and battery interface 6.2 joins, 2 pin of standby key jack interface 5.3 with meet power supply VCC ' after 4 pin link to each other, 3 pin are standby pin, 5 pin and 6 pin join 7 pin ground connection with S19 pin and the S18 pin of single-chip microcomputer IC1 ' respectively.When key inserts standby key socket 5.1,1 pin of standby key jack interface 5.3 by the switch on connecting line and the standby key socket 51 be connected with 2 pin; 5 pin of standby key jack interface 5.3 and 6 pin join with the data port and the clock mouth of key respectively by connecting line and standby key socket 5.1.
3 pin of additional power source interface 7.2 and the anode of diode D3 ' join, and 1 pin of the negative terminal of diode D3 ' and standby key jack interface 5.3 joins; 2 pin ground connection of additional power source interface 7.2.
The standby control circuit course of work of the present utility model is: when master key inserts standby key seat 5.1, power switch on the standby key seat 5.1 is connected, thereby the voltage that makes battery pack 6 is by power interface 6.2,1 pin and 2 pin of diode D2 ' and standby key jack interface 5.3 are added to power supply VCC ', make single-chip microcomputer IC1 ' the startups working programme of unblanking in the lock immediately: (this bipod passes through standby key seated connection mouth 5.3 for LPT S19 by single-chip microcomputer IC1 ' and S18, connecting line and standby key socket 5.1 join with the data port and the clock mouth of key respectively) read the content of internal storage in the master key, judge whether its tagged word is correct.If correct, take out the main password in the master key.Then, the content that data port and the clock mouth by lock built-in storage IC2 ' reads built-in storage IC2 ' in the lock, the main password of taking-up correspondence is checked from lock built-in storage IC2 '.If password conforms to, then the S09 pin of single-chip microcomputer IC1 ' becomes low level, by opening device driving circuit section 4.44 ' and opening device interface 3.2 drive opening devices 3, open dead bolt, finish and unblank, thereby realized the purpose that standby control circuit is unblanked.
The utility model autonomous type electronic password lock has following major advantage:
(1) utilization has realized reaching completely easy autonomous type function with keyboard that locks band and random code generator, the user can think whenever need, and need not to seek help from the legitimacy that special equipment and professional and technical personnel just can prepare legal new key (comprising master key) independently or remove original key (comprising master key).
Need not to input password when (2) unblanking, the simple to operate and worries of exempting memory cipher.
(3) can realize whenever opening once password of lock renewal, not be afraid of others' copied key, thereby have higher safety.
(4) keys can be driven many locks, and a key just can be opened the lock that all allow out at body, exempt the worries of a lot key always.
(5) in lock, can establish lock by cable by adding during the power supply short of electricity.
(6) use standby control circuit, realized the real electronization of coded lock: when main control circuit is out of order in the lock, master key can be inserted standby key socket startup stand-by circuit and unblank.
(7) this lock both can use separately, also can the information of unblanking be spread out of by the serial communication port and the computer networking of locking, or realized that remote bitting, remote clear key reach and unblank at a distance.
Below only be part embodiment of the present utility model, any based on equivalents of the present utility model, all should be within protection domain of the present utility model.
Claims (10)
1. autonomous type electronic password lock, comprise key, lock body, dead bolt, opening device, random cipher generator, main control circuit and battery, it is characterized in that: described main control circuit is made up of single-chip microcomputer, lock built-in storage, power control part branch, opening device drive circuit, master key socket, keyboard, wherein:
The clock mouth of described lock built-in storage and data port connect two LPTs of described single-chip microcomputer respectively;
The input that described power control part divides connects described battery, the described master key socket of control termination;
The input of described opening device drive circuit connects the start signal output of described single-chip microcomputer, and output connects described opening device;
Each pin of described master key socket connects described battery, the control end of power control part branch, the LPT of single-chip microcomputer respectively;
Described keyboard connects the keyboard mouth of described single-chip microcomputer.
2. autonomous type electronic password lock as claimed in claim 1 is characterized in that: described random cipher generator is realized by software.
3. autonomous type electronic password lock as claimed in claim 1 is characterized in that: described random cipher generator is the random cipher generator circuit.
4. autonomous type electronic password lock as claimed in claim 3 is characterized in that: described random cipher generator circuit is composed in series by noise generator, noise amplifier and comparator, and the output of this comparator connects the LPT of described single-chip microcomputer.
5. autonomous type electronic password lock as claimed in claim 4 is characterized in that: described noise generator is at least a element of selecting from resistor, diode, triode.
6. autonomous type electronic password lock as claimed in claim 1 is characterized in that: described keyboard is made of one or more button.
7. autonomous type electronic password lock as claimed in claim 1 is characterized in that: the serial port of described single-chip microcomputer is connected to the serial communication drive circuit.
8. autonomous type electronic password lock as claimed in claim 1 is characterized in that: it comprises also and adds electrical interface that its power pin connects described battery through diode.
9. as each described autonomous type electronic password lock of claim 1 to 8, it is characterized in that: it also comprises the standby control circuit that is made of second singlechip, the second lock built-in storage, standby key socket, the second opening device drive circuit, the same main control circuit of its annexation, the output of the second opening device drive circuit connects described opening device.
10. autonomous type electronic password lock as claimed in claim 9 is characterized in that: described key is electron key or IC-card, and described master key socket and standby key socket correspondingly are electron key socket or IC-card seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98201468.6U CN2330748Y (en) | 1998-02-26 | 1998-02-26 | Self-dependent electronic cipher lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98201468.6U CN2330748Y (en) | 1998-02-26 | 1998-02-26 | Self-dependent electronic cipher lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2330748Y true CN2330748Y (en) | 1999-07-28 |
Family
ID=33958741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98201468.6U Expired - Fee Related CN2330748Y (en) | 1998-02-26 | 1998-02-26 | Self-dependent electronic cipher lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2330748Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017084070A1 (en) * | 2015-11-19 | 2017-05-26 | 闵瑜 | Electronic door lock management method and system |
| CN108118974A (en) * | 2018-02-05 | 2018-06-05 | 攀枝花学院 | Lockset and key with random cipher |
| CN108734829A (en) * | 2018-04-16 | 2018-11-02 | 余仲飞 | Intelligent cipher lock and method |
| CN111091639A (en) * | 2019-12-17 | 2020-05-01 | 万晖五金（深圳）有限公司 | Lock system and control method |
-
1998
- 1998-02-26 CN CN98201468.6U patent/CN2330748Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017084070A1 (en) * | 2015-11-19 | 2017-05-26 | 闵瑜 | Electronic door lock management method and system |
| US10043328B2 (en) | 2015-11-19 | 2018-08-07 | Yu Min | Electronic door lock management method and system |
| CN108118974A (en) * | 2018-02-05 | 2018-06-05 | 攀枝花学院 | Lockset and key with random cipher |
| CN108734829A (en) * | 2018-04-16 | 2018-11-02 | 余仲飞 | Intelligent cipher lock and method |
| CN111091639A (en) * | 2019-12-17 | 2020-05-01 | 万晖五金（深圳）有限公司 | Lock system and control method |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |