CN1027298C - Computerized puzzle lock - Google Patents
Computerized puzzle lock Download PDFInfo
- Publication number
- CN1027298C CN1027298C CN 91112716 CN91112716A CN1027298C CN 1027298 C CN1027298 C CN 1027298C CN 91112716 CN91112716 CN 91112716 CN 91112716 A CN91112716 A CN 91112716A CN 1027298 C CN1027298 C CN 1027298C
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- circuit
- lock
- shutter
- input
- control
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Abstract
The present invention discloses a coded lock for a computer. The present invention comprises a protective door, a mechanical lock, an input keyboard, a large-scale operation integrated circuit, a display, a dibit fast comparator and a control circuit, wherein the input keyboard and a liquid crystal display is arranged in the protective door; the protective door is in combined control of a mechanism lock and an electromagnetic pin, so the reliability is high. Input codes and original stored numbers respectively control an unlocking bolt structure and an alarm circuit after going through the dibit fast comparison circuit. A chip in the control circuit of the present invention adopts a CMOS circuit, and the present invention adopts a pi type antijamming circuit, and thus, the present invention has the advantages of electricity saving, stable operation and high calculation speed.
Description
The invention belongs to the electric permutation lock technical field, further relate to a kind of Computerized puzzle lock by computer cipher control.
At present, the electronic lock of use adopts the switch on and off formula more, promptly is equivalent to the binary system formula, and the decimal system of employing formula coded lock is also arranged, and this lock is used Single-chip Controlling more, its cost height, and power consumption is big, the circuit complexity.Chinese patent CN2061585U is about " a kind of high secret electronic password lock ", and it utilizes existing calculator as master unit, the mode that adopts number that originally deposited in and the number of newly importing to compare by turn.Relatively speed is slow for this coded lock, and again because the integrated circuit block that adopts is a 74LS series, so power consumption is bigger.
The object of the present invention is to provide a kind of fast operation, power saving, have the Computerized puzzle lock of protective device, good stability.
The present invention is by adopting the quick comparison method of dibit to reach the purpose of fast operation; adopt cmos circuit to reach purpose of power saving again, the present invention includes shutter, mechanical lock, keyboard, extensive computing integrated circuit, display, quick comparator and control circuit.The shell of mechanical lock has shutter, and the lock core of mechanical lock is by the dead bolt of connecting rod control shutter, and input keyboard and display are equipped with in the inside of shutter.The door-hinge that spring hooks shutter is equipped with at the doorframe place of shutter.One side of door-hinge top is equipped with driving lever, and electromagnet is put the below of driving lever, and the button that starts the computing switch is controlled by driving lever.The elbow of control time switch places the below of door-hinge, and electromagnet armature the higher authorities are fixed with the electromagnetism pin.Extensive integrated computing circuit is delivered to the number of keyboard contact and the key entry of dynamic keyboard input circuit former several memory, and is shown on display.After the new number of keying in is delivered to former poke that comparator and former several memory send here and is compared from the output of display, unblank bolt structure and warning circuit of control respectively behind the widening circuit broadening.
Extensive integrated computing circuit in the control circuit, special instruction memory, former several memories, comparator and state identification circuit all adopt cmos circuit.
The invention will be further described below in conjunction with accompanying drawing.
Fig. 1 is an overall structure schematic diagram of the present invention.
Fig. 2 is a lock housing surface texture schematic diagram of the present invention.
Fig. 3 is a lock housing lateral view of the present invention.
Fig. 4 is a control circuit block diagram of the present invention.
Fig. 5 is power supply of the present invention and anti-jamming circuit figure.
Fig. 6 is the circuit diagram of solid-state relay of the present invention.
Fig. 7 is warning circuit figure of the present invention.
Lock housing external surface of the present invention is made by steel plate, has a shutter (4) in the middle of the lock housing, and shutter (4) is also made with steel plate, and it is connected with the lock housing shaft type.The outside of shutter (4) has a groove, and mechanical lock (1) is housed on the frame of shutter (4), and its lock core (2) is by the lock core (5) of connecting rod (3) control shutter.When inserting specific key in the mechanical lock (1), lock core (5) is extracted out from the groove of shutter (4) by connecting rod (3).The spring (8) of shutter (4) doorframe place dress automatically springs open shutter (4), exposes keyboard (6) and display (7).Key in a certain number of combinations by keyboard (6), deposit former several memory (22) in as cipher key.Click the zero suppression button of keyboard (6), the former poke on the display (7) disappears.Spring (8) hooks the door-hinge (9) of shutter (4), and a side of door-hinge (9) top is equipped with driving lever (10).Electromagnet (11) is put the below of driving lever (10), and the button that starts computing switch (14) is controlled by driving lever (10).The elbow (16) of control time switch (15) places the below of door-hinge (9), and armature (12) the higher authorities of electromagnet (11) are fixed with electromagnetism pin (13).In the time will opening the computer lock; after keying in an identical number of combinations of former poke with cipher key by keyboard (6); shutting shutter (4) slightly inwardly pushes away again; door-hinge (9) promotes driving lever (10); driving lever (10) is pushed electromagnet armature (12) to magnetic pole; driving lever (10) lower end starts computing switch (14) closure simultaneously, for control circuit provides working power.Simultaneously, electromagnet (11) electric with the armature adhesive, electromagnetism pin (13) pins door-hinge (9), shutter (4) is by locked, both used the key shutter of also not opening, and plays the effect of protection keyboard (6) and display (7).The break-make that starts computing switch (14) provides working power for control circuit.
Large scale integrated circuit C101184(19) number of keying in the time of will opening electronic lock and former poke are sent into quick comparator CM5072(23) compare, its result delivers to identical widening circuit (24) broadening, direct current signal behind the broadening is delivered to the door bolt mechanism of unblanking (26), opens the computer lock.When comparator (23) find to be keyed in number and former poke when unequal, comparator (23) is sent comparative result into different widening circuits (25) broadening, direct current signal behind the broadening is delivered to solid-state relay (27), connects dc source, makes warning circuit (29) send sound, light warning.Single stabilization delay circuit ICM7556 in the power supply (30) guarantees that the computer lock is unblanked or the normal power supply of alarm procedure.When not unblanking, the computer lock is in electroless state, and shutter (4) is controlled by specific keys.
Input keyboard (6) has 20 keys at least, to guarantee can also to carry out mathematical computations except that input digit, is beneficial to the user and remembers former poke.
Display (7) is a LCD, the end of a thread of selecting every three lead-in wires in its input line is pressed the signal that potential differentiation is represented two digits, delivers to the input of comparator (23), compare fast, draw original poke and the number " identical " of new input or the pulse of " difference " very soon.Like this, suppose that former computing circuit speed is equivalent to per second 1,000,000 times, after the employing dibit comparison method, be equivalent to the speed of computing circuit is brought up to per second 2,000,000 times.Ratio comparison method by turn doubles.Increase the technical difficulty of dissecting circuit, saved power supply again.Part has adopted cmos circuit in addition, makes the static power consumption of lock be reduced to 0.02W.
Adopt π type anti-jamming circuit (31) to be connected on the input of AC power and the output of the dc output circuit after the rectification (30).Interference in the AC power and printed circuit board (PCB) are isolated, made circuit working stable.
Special instruction memory (21) adopts the RA4104 chip, is used to control extensive integrated computing circuit (19), and former several memory (22) is resetted.Instruction in the special instruction memory (21) has only manufacturing firm to access, the accident in case owner meets accident, and safety cabinet producer accesses this instruction in one minute, thereby opens the computer lock under the situation of not damage insurance cabinet and lock.
State identification circuit (28) is controlled by the control time switch (15) of shutter (4), after shutter (4) is opened, starts timing, when reaching certain preset time, connects solid-state relay (27), makes alarm (29) produce sound and light alarm.
The advantage of computer lock of the present invention is that password can be positive and negative eight-digit number or decimal, and number of password is about 1,600,000,000, replaceable password at any time, and fast operation, power saving, working stability, function is strong. Keyboard and display have shutter protection, if sled, when pounding or opening shutter and reaching certain preset time can send sound, light is reported to the police.
Claims (10)
1, a kind of Computerized puzzle lock, its shell has the inside of shutter, shutter that input keyboard and display are housed, it also comprises coded lock, acoustic-optic alarm and power control, it is characterized in that: the lock core of mechanical lock is by the dead bolt of connecting rod control shutter, shutter doorframe place shock mount hooks the door-hinge of shutter, one side of door-hinge top is equipped with driving lever, electromagnet is put the below of driving lever, the button that starts the computing switch is controlled by driving lever, the elbow of control time switch places the below of door-hinge, and the electromagnet armature upper fixed has the electromagnetism pin; Comparator adopts the CM5072 quick comparator, extensive integrated computing circuit C101184 links to each other with the dynamic keyboard input circuit through input data line, the special instruction memory connects extensive integrated computing circuit through input control line, display links to each other with extensive integrated computing circuit through output data line, former several memory links to each other with extensive integrated computing circuit through output control line, comparator links to each other with former several memories with display through two groups of data wires respectively fast, fast comparator relatively after, correct result controls the bolt electromagnet through the correct signal output line by widening circuit, error result is connected solid-state relay through the rub-out signal output line by widening circuit, makes alarm produce sound and light alarm.
2, computer sign indicating number lock as claimed in claim 1, it is characterized in that: described mechanical lock is controlled by specific keys.
3, Computerized puzzle lock as claimed in claim 1 is characterized in that: described input keyboard has 20 keys at least.
4, Computerized puzzle lock as claimed in claim 1 is characterized in that: described display is a LCD.
5, as claim 1 or 4 described Computerized puzzle locks, it is characterized in that: the end of a thread of selecting every three lead-in wires in the input line of described LCD, press the signal that potential differentiation is represented two digits, deliver to the input of quick comparator.
6, Computerized puzzle lock as claimed in claim 1 is characterized in that: adopt n type anti-jamming circuit to be connected on the input of AC power and the output of the dc output circuit after the rectification.
7, Computerized puzzle lock as claimed in claim 1 is characterized in that: the extensive integrated computing circuit in the control circuit, special instruction memory, former several memories, quick comparator and state identification circuit adopt cmos circuit.
8, Computerized puzzle lock as claimed in claim 1 is characterized in that: the special instruction memory adopts the RA4104 chip, is used to control extensive integrated computing circuit, and former several memory is resetted.
9, Computerized puzzle lock as claimed in claim 1, it is characterized in that: solid-state relay is controlled by widening circuit, is used to the acousto-optic of alarm, light warning that working power is provided.
10, Computerized puzzle lock as claimed in claim 1 is characterized in that: state identification circuit is controlled by the control time switch of shutter, after shutter is opened, starts timing, reaches certain preset time, connects solid-state relay and makes alarm produce sound and light alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91112716 CN1027298C (en) | 1991-12-31 | 1991-12-31 | Computerized puzzle lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91112716 CN1027298C (en) | 1991-12-31 | 1991-12-31 | Computerized puzzle lock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1066315A CN1066315A (en) | 1992-11-18 |
| CN1027298C true CN1027298C (en) | 1995-01-04 |
Family
ID=4911042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91112716 Expired - Fee Related CN1027298C (en) | 1991-12-31 | 1991-12-31 | Computerized puzzle lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1027298C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100888376B1 (en) * | 2008-09-02 | 2009-03-13 | 이상옥 | Electronic locking apparatus |
-
1991
- 1991-12-31 CN CN 91112716 patent/CN1027298C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1066315A (en) | 1992-11-18 |
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|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |