CN2289018Y

CN2289018Y - Intelligence puzzle lock core and key

Info

Publication number: CN2289018Y
Application number: CN 96235086
Authority: CN
Inventors: 任烨; 谢适时
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-06-18
Filing date: 1996-06-18
Publication date: 1998-08-26
Anticipated expiration: 2006-06-18

Abstract

The utility model relates to an electronic type cipher lock core and a key. The lock core is composed of a fixing frame, a movable axle, an SCM control circuit and a relay, wherein the SCM control circuit is composed of an SCM, a non-volatile memory, a relay drive circuit, a power source, and a management press key for realizing cipher management functions, wherein the memory in which ciphers are stored, the relay drive circuit and the management press key are respectively connected with the corresponding connecting pins of the SCM; the front end of the movable axle is provided with a key hole; an IC chip, the inner part of which is provided with ciphers for unlocking the lock is arranged in the key. The lock core of the utility model can be made into various shapes to replace traditional cylinder lock cores. The utility model has the advantages of strong versatility, low cost, high reliability, good safety, convenient use and wide application ranges.

Description

Intelligent cipher lock core and key

The utility model relates to a kind of cipher lock and key of electricity consumption signal controlling lock-switch.

Traditional in the market cylinder lock, its key shape easily repeats, and also is replicated easily, poor stability, especially in the hotel, the hotel can give the bad person with opportunity, and cylinder lock is to open different locks with different keys, when will managing the switch of many door locks, a people need be with a big string key, and very inconvenient.Recently new products such as various coded locks, magnetic force lock, induction lock, Fingerprint Lock, networking lock, language lock, magnetic card lock also occurred, but all had following problem in varying degrees: reliability is low, poor stability, cost height, use inconvenience, versatility difference etc.

The purpose of this utility model is to provide a kind of highly versatile, cost is low, reliability is high, safety is good, easy to use intelligent cipher lock core and matched key thereof, can be widely used in the lock and the various occasion of various structure typess.

The technical solution of the utility model is as follows:

Intelligent cipher lock core of the present utility model is by fixed mount, movable axis, single chip machine controlling circuit and relay are formed, single chip machine controlling circuit is by single-chip microcomputer, nonvolatile memory, relay drive circuit, the management of power supply and realization cryptography management function is formed by key connecting, the memory of internal memory password wherein, relay drive circuit links to each other with the respective pins of single-chip microcomputer respectively with the management button, relay links to each other with relay drive circuit, leave the pin that can link to each other on the single-chip microcomputer with the matched key internal memory, this part pin extends and is arranged in the contact site of keyhole and key, so that single-chip microcomputer reads the unlocking cipher in its internal memory and checks when key insertion keyhole.The movable axis front end is provided with keyhole, and movable axis is contained in the fixed mount.There is a controlled action also can block the fixture block of the movable axis of lock on the relay, has groove on the movable axis of lock.Being checked when incorrect when the password in the key, the Single-chip Controlling relay is no power still, and its fixture block still is stuck in the groove of movable axis movable axis can not be rotated, and whether lock still leave or not; When the password in the key being checked when correct, the Single-chip Controlling relay power, its fixture block is sucked back and withdraw from the groove of movable axis, then movable axis can be by key turns, lock is unlocked.The management button can start the Password Management subprogram of single-chip microcomputer internal memory, to realize functions such as lock core cipher setting, key cipher are provided with.It is one or more to realize that as the starting switch control single chip computer management button of the management of key-cut and lock has, and all links to each other with the single-chip microcomputer corresponding pin.

Single-chip microcomputer be used for key cipher not to the time loudspeaker of reporting to the police link to each other, these loudspeaker are reported to the police as sound by Single-chip Controlling.

Have a power switch to connect with power supply in control circuit, this switch contact is a reed structure, be fixed on keyhole in the movable axis with the key contact portion, make this switch closure when key inserts, key is extracted the back disconnection out, to reach energy-conservation purpose.

Movable axis is cylindrical, and front end has the pin of corresponding key pin, and its middle part is the less spill of diameter of cylinder, and the middle part is with several annulus sheet metals that links to each other with the front end pin, has a groove at its edge, rear portion, can be blocked by the fixture block of relay; " U " shape metal spring leaf of corresponding movable axis middle part annulus sheet metal is arranged in the fixed mount, and these " U " shape metal spring leafs link to each other with the corresponding pin of single-chip microcomputer.Like this, when key turns is unblanked, keep the pin of key to be connected during the rotation of movable axis with the corresponding pin of single-chip microcomputer.

Supporting Electronics Cryptographic Keys of the present utility model, comprise the front end that to open lock and as the rear end of handle, the non-volatile integrated circuit storage chip of a slice internal memory unlocking cipher is equipped with in its inside, each pin arrangement of the read-write of this memory and control signal is at front end, these pins linked to each other with respective pins on the single-chip microcomputer and circuit of the present utility model are started working when key inserted keyhole, read key internal memory password and checked.Have by the integrated circuit storage chip on this key handle and draw the power contact that can connect power supply, this power contact comprises power positive cathode, intelligent cipher built-in lock pin electric quantity of power supply of the present utility model external power supply can be connected so that when not enough, still can make circuit operate as normal of the present utility model; Button cell and the power pins corresponding with storage chip also can be housed in key inside link to each other, by this button cell supply entire circuit electricity consumption.Memory in this key can adopt uses increasingly extensive high integrated memory chip, also claims the IC chip.

Memory in the utility model lock core and the key all adopts non-volatile memories class chip, for example EEPROM and PEROM chip etc., chip can be to encrypt or non-encrypted class, as 24C01A, 93C46,88SC102, SLE4442 type etc., encryption chip is to be used for the higher place of requirement safety, as strongbox etc.

Below in conjunction with drawings and Examples in detail the utility model is described in detail.

Fig. 1 is the single chip machine controlling circuit functional-block diagram of intelligent cipher lock core of the present utility model;

Fig. 2 is the single chip circuit schematic diagram of intelligent cipher lock core of the present utility model;

Fig. 3 is an assembling schematic diagram of the present utility model;

Fig. 4 is the front front view of fixed mount;

Fig. 5 is the schematic diagram of key of the present utility model;

Fig. 6 is a kind of behavior in service figure of the present utility model.

Fig. 1 to Fig. 5 reflects structure of the present utility model.

As shown in Figure 1, lock core of the present utility model be with single-chip microcomputer, memory and relay serve as control main body, its circuit part can be made on the very little circuit board, can be fixed in the fixed mount, power supply generally adopts dc-battery, with the lock shell is ground wire, and the basic lead-out wire of the control circuit of lock core has push button signalling line, the cue line when battery electric quantity is not enough etc.Other signal can increase according to the type of lock, as the key cipher verification not to the time alarm signal line etc.

Shown in Figure 2 is a kind of embodiment of single chip machine controlling circuit, and U1 is a single-chip microcomputer among the figure, can adopt the 89C2051 type, as entire circuit control centre, and can be all very simple and direct to each pin by self-defined programming and the circuit design of then making of plug-in.U2 is a memory, and IC is the built-in IC storage chip of key.Relay drive circuit is made up of resistance R 1, triode P1, diode D1, and wherein the end of R1 links to each other with single-chip microcomputer U1, and the other end connects the base stage of P1, the emitter stage of P1 connects power Vcc, the P1 colelctor electrode meets D1, and D1 is in parallel with relay J 1, and single-chip microcomputer U1 is by this circuit control relay action.Also comprise a power supply test circuit of realizing the supply voltage value test among Fig. 2, it links to each other with single-chip microcomputer U1 corresponding pin, comprise resistance R 2, R3, R4, diode D2 and comparator U3, wherein R2 and R3, R4 and D2 are serially connected in respectively between power supply and the ground wire, the contact of R2 and R3, the contact of R4 and D2 is just meeting U3 respectively, negative terminal, the output termination U1 of U3, when built-in electric quantity of power supply is not enough, then this circuit is given control signal of U1, single-chip microcomputer U1 controls respective element again and gives sound or light prompt, single-chip microcomputer U1 can be used for the built-in power electric weight when not enough the luminous tube L1 of prompting link to each other, change power supply early with the light prompt user.C1, C2 and Cy constitute clock circuit.The signal that the IC chip leads to U1 in the key mainly contains: power Vcc, ground wire GND, clock CIK, signal input and output I/O, reset signal CRST, programming signal PGM and fuse signal FUS etc.T1 and T2 are the management button, and T1 uses in the debug process of dispatching from the factory, and its effect is with the data dump among the U2, and T2 is used for key management.

When no key inserted, K switch 1 disconnected, and power supply is not powered, and single chip machine controlling circuit is not worked, and movable axis is stuck by the relay fixture block, and lock can not be opened.When key inserted, K switch 1 was closed under the pressure of key, single chip machine controlling circuit work, and whether U1 at first detects supply voltage enough, and the then low cue of output supply voltage inadequately is by the glittering prompting of luminous tube L1.The password in the key is read in U1 control then, compares judgement with password in the U2, if the incorrect then relay J 1 of key cipher does not power on, movable axis still is stuck, and lock can not leave, and output alarm signal, reports to the police by buzzing formula loudspeaker B1; If key cipher correctly then relay J 1 power on, the relay fixture block is sucked back and break away from groove on the movable axis, by the spinning movement of key lock is opened.Can set the longest permission uncaging time by U1.After U1 checks out key cipher, detection has or not the push button signalling input, and then change the key management function subprogram over to if having: the password in the key can be produced at random by single-chip microcomputer U1, desirable nybble or longer, thereby the possibility that password repeats is almost nil, and the user need not to remember password; The utility model lock core can be realized the identification of multi-level key, realize that a lock has two or more a plurality of other unlocking cipher of level, realize that a key can drive many locks, can open all guest room doors such as key of hotel waiter, dweller's key then can only be opened the door lock of oneself; The management function of lock core mainly is the management of unlocking cipher, the preparation of key etc., lock core of the present utility model bitting voluntarily, change unlocking cipher or can between different lock cores, transmit password voluntarily, realize that a key drives many locks and open same function such as lock with different keys.When a plurality of management button is arranged, can realize management function by the combination of button; Have only a management during button then can by button decide the meaning of push button signalling by lower frequency, thereby realize management function.For example revise the interior password of lock core and key simultaneously, be lock core bitting (be about to lock core cipher and pass to key), key cipher is passed to lock core etc., unlocking cipher can be revised at any time by the user.

Fig. 3 can reflect the structure and the position relation of key, movable axis, fixed mount and single chip machine controlling circuit plate.Pins such as the power line of the IC chip in the key 1, holding wire can become tabular shape, aciculiform or the hole shape of placing side by side by cloth at key 1 front end, and the keyhole in the corresponding movable axis 3 can be slot, hole shape or aciculiform, power contact 2 is arranged on the key 1 and leading foot is arranged.Generally there are 3 to 8 holding wires to connect between movable axis 3 and the fixed mount 7, realize of the connection of the IC chip of key 1 to single-chip microcomputer U1, can adopt lead directly to join, the annulus that also can adopt Fig. 3 and Fig. 4 and the connected mode of " U " shape reed are to guarantee being connected when movable axis 3 rotates, be movable axis 3 socket annulus sheet metals 4, fixing corresponding " U " shape sheet metal 8 in the fixed mount 7, circuit board 9 is fixed in the lock core fixed mount 7, also can be loaded on other position of lock body.Movable axis 3 rear portions have groove 5, can be blocked by the fixture block on the relay J 16.

The profile of the example of Fig. 6 is a kind of office, hotel door lock commonly used, its inner lock core has adopted the utility model, lean on upper end outdoors to have a supply voltage to hang down indicator lamp (light emitting diode) L1, the battery case 10 that one packed battery is arranged in the door, one button T1 is arranged at battery case 10 bottoms, as the management of lock core, the top of battery case 10 has a buzzer B1 to report to the police when having the key that is not inconsistent with door-opening password to insert.The utility model is the same with common lock, simple and convenient when using.

In sum, the utility model is the pellet shot from a slingshot part that substitutes traditional mechanical billiard lock core with single chip machine controlling circuit, advantage such as have highly versatile, price is low, reliability is high, safety is good, easy to use, unlocking cipher can be revised at any time by the user, circuit power consumption is little, practical, can be widely used in the lock and the various occasion of various structure typess, the lock that can form various uses easily, be applicable to family, unit, hotel etc., also can be used for the place that file cabinet, safety cabinet etc. require high insurance.

Claims

1, a kind of intelligent cipher lock core, it is characterized in that it is by fixed mount, movable axis, single chip machine controlling circuit and relay are formed, single chip machine controlling circuit is by single-chip microcomputer, nonvolatile memory, relay drive circuit, the management of power supply and realization cryptography management function is formed by key connecting, the memory of internal memory password wherein, relay drive circuit links to each other with the respective pins of single-chip microcomputer respectively with the management button, relay links to each other with relay drive circuit, leave the pin that can link to each other on the single-chip microcomputer with the matched key internal memory, this part pin extends and is arranged in movable axis in and the contact site of key, the movable axis front end is provided with keyhole, and movable axis is contained in the fixed mount.

2, intelligent cipher lock core according to claim 1 is characterized in that having on the relay a controlled action and can block the fixture block of movable axis or its extension.

3, intelligent cipher lock core according to claim 1, it is characterized in that single-chip microcomputer be used for key cipher not to the time loudspeaker of reporting to the police link to each other.

4, intelligent cipher lock core according to claim 1 is characterized in that comprising that one can be inserted and closed power switch by key, and this switch contact is a reed structure, is fixed on keyhole and key contact site in the movable axis.

5, intelligent cipher lock core according to claim 1, it is characterized in that movable axis is cylindrical, front end has the pin of corresponding key pin, its middle part is the less spill of diameter of cylinder, the middle part is with several and links to each other with the front end pin and can have groove at its edge, rear portion with the annulus sheet metal of movable axis rotation; Be fixed with in the fixed mount some " U " shape metal spring leaf and with corresponding the contacting of annulus sheet metal at movable axis middle part, " U " shape metal spring leaf links to each other with the corresponding pin of single-chip microcomputer again.

6, intelligent cipher lock core according to claim 1, it is one or more to it is characterized in that realizing that as the starting switch control single chip computer management button of the management of key-cut and lock has, and all links to each other with the single-chip microcomputer corresponding pin.

7, a kind of Electronics Cryptographic Keys, comprise the front end that to open lock and as the rear end of handle, it is characterized in that inside is equipped with the non-volatile integrated circuit storage chip of a slice internal memory unlocking cipher, each pin arrangement of the read-write of this memory and control signal is at front end.

8, Electronics Cryptographic Keys according to claim 7 is characterized in that having by the integrated circuit storage chip on its handle and draws the power contact that can connect power supply.

9,, it is characterized in that key inside is equipped with button cell and links to each other with the power pins of storage chip according to claim 7 or 8 described Electronics Cryptographic Keys.