CN101696610A - Card type cipher lock - Google Patents
Card type cipher lock Download PDFInfo
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- CN101696610A CN101696610A CN200910101648A CN200910101648A CN101696610A CN 101696610 A CN101696610 A CN 101696610A CN 200910101648 A CN200910101648 A CN 200910101648A CN 200910101648 A CN200910101648 A CN 200910101648A CN 101696610 A CN101696610 A CN 101696610A
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- lock
- cipher
- circuit
- card
- password
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Abstract
The invention discloses a card type cipher lock, which comprises a lock cylinder, a cipher setting circuit and a cipher comparison circuit, wherein the lock cylinder comprises an optoelectronic isolator; and the optoelectronic isolator comprises a light-emitting diode and a photo transistor. The card type cipher lock applies the optoelectronic isolation technology which mainly uses the optoelectronic isolator commonly used in the switch quantity control technology, and the optoelectronic isolator comprises the light-emitting diode and the photo transistor. By means of the technology, the cipher unlocking aim is achieved through the functions of the cipher setting circuit and the cipher comparison circuit. The card type cipher lock has simple structure, low cost, simple cipher setting, and convenient and quick operation, effectively prevents people from forgetting the cipher, and is practical and reliable.
Description
Technical field
The present invention relates to a kind of coded lock, particularly a kind of card form coded lock.
Background technology
As everyone knows, the door lock of usefulness all is a conventional door lock on ordinary days, and it is a mechanical door lock, and the key of mechanical lock is replicated easily, be cracked, and if the key loss, must change door lock to guarantee safety.At above problem, people have developed relatively coded lock reliably, even like this under the situation that key is lost, also can reach anti-theft effect by changing password.In the prior art, the close mode of the survey of coded lock is various, photoelectric technology also is a class wherein, whether useful single-chip microcomputer is tested password and is met in similar design, this method cost is higher, is difficult for popularizing, though digital circuit has been used in another design, simple in structure, cost is not high, but password setting is too loaded down with trivial details, has brought the trouble of operation, also having a kind of is exactly to unblank by direct key feeding cipher on a kind of equipment, this method needs people to remember password, too simple is decoded by others easily, and too difficult user is easy to again forget, especially old man and child, reliability is not high.
Summary of the invention
For the coded lock that improves prior art deficiency at some technical elements, the invention provides a kind of card form coded lock, it has used photoelectric isolation technology, this technology has mainly been used the photoisolator that arrives commonly used in the switching value control technology, and photoisolator comprises light emitting diode and phototriode.Under this technology, by the purpose that is used for reaching unlock password of password setting circuit and password comparison circuit, the present invention is simple in structure again, cost is not high, and password setting is simple, simple operation, preventing that effectively people from forgetting Password, is a kind of practical and reliable card form coded lock.
The present invention is achieved by the following technical solutions:
The present invention is a kind of card form coded lock, comprises lock core, password setting circuit and password comparison circuit, and lock core comprises photoisolator, and photoisolator comprises light emitting diode and phototriode.
Password setting circuit of the present invention comprises latch, and the password comparison circuit comprises digital comparator, and the password comparison circuit is connected with drive circuit, and drive circuit is a transistor drive circuit, and drive circuit is connected with the magnetic force lock, and lock core also comprises card lock and self-lock switch.
The present invention improves prior art, a kind of card form coded lock is provided, it has used photoelectric isolation technology, mainly used the photoisolator that arrives commonly used in the switching value control technology, photoisolator comprises light emitting diode and phototriode, this basic equipment and password setting circuit and password comparison circuit are formed the loop, thereby reached the purpose of unlock password, the present invention is simple in structure, cost is not high, and password setting is simple, simple operation, preventing that effectively people from forgetting Password, is a kind of practical and reliable coded lock.
Description of drawings
Fig. 1 is the lock core schematic side view of apparatus of the present invention embodiment 1;
Fig. 2 is the lock core schematic top plan view of apparatus of the present invention embodiment 1;
Fig. 3 is that the lockhole master of apparatus of the present invention embodiment 1 looks schematic diagram;
Fig. 4 is the structural representation of the password setting circuit of apparatus of the present invention embodiment 1;
Fig. 5 is the structural representation of the cryptographic check circuit of apparatus of the present invention embodiment 1;
Fig. 6 is the structural representation of the card key of apparatus of the present invention embodiment 1;
Fig. 7 is the schematic flow sheet of the overall plan of apparatus of the present invention embodiment 1;
Fig. 8 is the structural representation of the password setting circuit of apparatus of the present invention embodiment 2;
Fig. 9 is the structural representation of the cryptographic check circuit of apparatus of the present invention embodiment 2.
Among the figure: the 1st, lockhole, the 2nd, light hole, the 3rd, self-lock switch, the 4th, light emitting diode, the 5th, phototriode, the 6th, lock core, the 7th, password setting circuit, the 8th, cryptographic check circuit, the 9th, transistor drive circuit, the 10th, magnetic force lock, the 11st, password miscue, the 12nd, password setting switch, the 13rd, card lock, the 14th, card lock locked groove, the 15th, code hole, the 16th, toggle switch, the 17th, card key.
The specific embodiment
The contrast accompanying drawing is described further embodiments of the invention below:
The present invention is a kind of card form coded lock, comprises lock core 6, password setting circuit 7 and password comparison circuit, and lock core 6 comprises photoisolator, and photoisolator comprises light emitting diode 4 and phototriode 5.
Fig. 1 is the lock core schematic side view of apparatus of the present invention embodiment 1, and Fig. 3 is that the lockhole master of apparatus of the present invention embodiment 1 looks schematic diagram.Embodiment 1 has four photoelectric password switches, so four light holes 2 are arranged, self-lock switch 3 is located at lock core 6 with respect to lockhole 1, Fig. 2 is the lock core schematic top plan view of apparatus of the present invention embodiment 1, photoisolator comprises light emitting diode 4 and phototriode 5, and the arrangement that they are paired is positioned at the back of light hole 2, one end of lock core 6 is provided with card lock 13 corresponding to the position of opening, and the other end then is a self-lock switch 3.When card was inserted into the tram, card lock 13 was fixed card, and the self-lock switch 3 lock core 6 in is pressed when this position simultaneously, the circuit connection.After door is opened, press card once more, then self-lock switch 3 is pressed for the second time, and switch is upspring, and card is ejected lockhole 1.The number of photoisolator can become, as 4,8,16 etc., number is many more, difficult more being cracked, secret ability is strong more, and the position of photoisolator is also variable, and promptly photoisolator can be set to no longer on the straight line, distance between the photoisolator can not wait yet, and can make the difficulty more that cracks of password like this.Password setting circuit 7 comprises latch, and cryptographic check circuit 8 comprises digital comparator.Among the figure, DB
nThe input that connects password setting circuit 7, A
nThe input that connects the password comparison circuit.
Fig. 4 is the structural representation of the password setting circuit of apparatus of the present invention embodiment 1, and password setting circuit 7 has used latch, and the effect of latch is the data signal of input to be latched output then, among the figure, and DB
NBe the data signal of input, B
NBe the data signal of corresponding output, this design can make the very convenient of password setting change, only needs to insert key, presses password setting switch 12 then and gets final product.
Fig. 5 is the structural representation of the cryptographic check circuit of apparatus of the present invention embodiment 1, and cryptographic check circuit 8 has used digital comparator, and its effect is the two ways of digital signals of relatively importing, provide comparative result then, two paths of signals comes respectively to the on-off circuit of latch and lock core 6, among the figure, and B
NFrom latch, A
NFrom on-off circuit, digital comparator compares password and the key cipher that sets in advance.If password is correct, F
A=BThe time, drive magnetic force lock 10 and open the door, otherwise, F worked as
A＜＜BOr F
A＞＞BThe time, then light the LED lamp on the door, the prompt cipher mistake.
Fig. 6 is the structural representation of the card key of apparatus of the present invention embodiment 1, card key 17 preferably uses firm a little material, be provided with toggle switch 16 on the key, can control the open and close of code hole 15, such key just can use any password, key tail is carved with card lock locked groove 14, allows card lock 13 with its locking when being used to open the door.
Fig. 7 is the schematic flow sheet of the overall plan of apparatus of the present invention embodiment 1, specific implementation method is as follows, we should be provided with password earlier before formal the use, arbitrarily open arbitrarily individual hole on the card key 17 when being provided with, key is inserted lockhole 1, pressing password setting switch 12 then presses back lock and opens and then represent password setting completed, hole on the card is exactly a password at this moment, after password setting finished, the user just can normally use this product, only card need be inserted lockhole 1 during use, card is fixed by locking after inserting the tram, this moment, then optoelectronic switch was connected if hole clipping is opened on the relevant position, and password is correct on the expression card, door can be opened automatically, otherwise prompt cipher mistake is then taken out key and only need be pressed key once more and unclamp then, and key can eject from lockhole 1 automatically.
Fig. 8 is the structural representation of the password setting circuit of apparatus of the present invention embodiment 2, and Fig. 9 is the structural representation of the cryptographic check circuit of apparatus of the present invention embodiment 2, and embodiment 2 has eight photoelectric password switches, so eight light holes 2, secret better effects if are arranged.All the other mode of occupation are all identical with embodiment 1 with general configuration.
At last; it is also to be noted that; what more than enumerate only is several specific embodiment of the present invention; obviously; the invention is not restricted to above embodiment; many distortion can also be arranged, and all distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be thought protection scope of the present invention.
Claims (8)
1. a card form coded lock comprises lock core (6), password setting circuit (7) and cryptographic check circuit (8), it is characterized in that described lock core (6) comprises photoisolator.
2. card form coded lock according to claim 1 is characterized in that, described photoisolator comprises light emitting diode (4) and phototriode (5).
3. card form coded lock according to claim 2 is characterized in that, described password setting circuit (7) comprises latch.
4. card form coded lock according to claim 3 is characterized in that, described cryptographic check circuit (8) comprises digital comparator.
5. according to claim 1 or 2 or 3 or 4 described card form coded locks, it is characterized in that described cryptographic check circuit (8) is connected with drive circuit.
6. card form coded lock according to claim 5 is characterized in that, described drive circuit is transistor drive circuit (9).
7. card form coded lock according to claim 6 is characterized in that, described drive circuit is connected with magnetic force lock (10).
8. according to claim 6 or 7 described card form coded locks, it is characterized in that described lock core (6) also comprises card lock (13) and self-lock switch (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910101648A CN101696610A (en) | 2009-08-20 | 2009-08-20 | Card type cipher lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910101648A CN101696610A (en) | 2009-08-20 | 2009-08-20 | Card type cipher lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101696610A true CN101696610A (en) | 2010-04-21 |
Family
ID=42141734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910101648A Pending CN101696610A (en) | 2009-08-20 | 2009-08-20 | Card type cipher lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101696610A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886496A (en) * | 2010-06-30 | 2010-11-17 | 李鹤 | Grating electronic lock |
| CN106340095A (en) * | 2016-08-26 | 2017-01-18 | 合肥若涵信智能工程有限公司 | Inlaid magnetic lock |
| CN107909135A (en) * | 2017-10-18 | 2018-04-13 | 四川大学 | A kind of USB flash disk that can prevent data from revealing |
-
2009
- 2009-08-20 CN CN200910101648A patent/CN101696610A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886496A (en) * | 2010-06-30 | 2010-11-17 | 李鹤 | Grating electronic lock |
| CN106340095A (en) * | 2016-08-26 | 2017-01-18 | 合肥若涵信智能工程有限公司 | Inlaid magnetic lock |
| CN107909135A (en) * | 2017-10-18 | 2018-04-13 | 四川大学 | A kind of USB flash disk that can prevent data from revealing |
| CN107909135B (en) * | 2017-10-18 | 2023-07-07 | 四川大学 | USB flash disk capable of preventing data leakage |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20100421 |