SU1339229A1 - Combination lock - Google Patents

Abstract

And: i) P | K tienie refers to the technique: i; i Till p; i i. lM4lll) I.4 OO liCKTOB Ol .IOCTVIKI IIOCTOpoHHM .x individuals, H in particular to K () .: u) Bi) iM (i.K. ibK) and: (() P) sgeny is a new secret number: 5amk; |. With iipaBH.ibiioM HaOofic stake on b. yuke i ei1 tax m with about. Yuka 3 receiving cola vk.pochayugs pe.ie 9 time and isno.ishte.; 1nny b.yuk I). In s.tuchae naoofia nspra- BH.ihiKMo stake signal; | from b. yuk 2 you and. | a false stake. switch 8 vk.pomaet pe.ie 9 c) emeii, sigma.ch with which measure. from K) biTi) iii element 11 1.3 pc. 1All the trigger 11. (Triggering an extra b.chock 10 on this isn’t a nrons wave. In counter 7 is measured in 1.1 Egsy nolcount K (.). 1 is the correct code of the wrong code and in reaching the setpoint) the number in the counter 7 work .chamka b. ju- knruegs. In the event of fatigue, the element And 13 is closed i) ei aaaaa the occurrence of signals vk- | k) h with neither pe.ie 9 time per inlncato) ii. Ra: (b. 1 kir () vka lock is carried out. 1 set of siein. 1 foot () of the lockout code. Knockout on block 4. When code 1 is comparable) a) blocking (SI1ЛК1Л е exit b. code 4 sets the unlock code sets the counter 7 to its original state and || 1 leads to the zam (well to the code set mode. (, working on the unit 10 and |) looking after the set |) and irav.biyogo Ko.ia.Iri this trigger 5 is set to "O and otk): 1.1ment 11 13 times |) en1enn passing s1l1al .1k) cue from le. ii 9 times and indicator i 1. 1 Il. Exit (L with with CD

Description

The invention relates to the technique of various objects from access by unauthorized persons, in particular to combination locks.

The purpose of the invention is to increase the secrecy of the castle.

The drawing shows a functional diagram of the lock.

The lock contains a code dialing block 1, a false code detection block 2, a block, 5 code receiving, block 4 receiving unlock code, trigger 5, element 6, counter 7, switch 8, time relay 9, executive block 10, indicator 11. element HF 12, additional element And 13.

The lock works as follows.

On block 1, the set is dialed in advance () in a fixed number in the form of a sequence of characters. If the sequence is typed correctly, then from the block 3 of receiving the code in the execution unit I) and in the time relay 9 the signals come to be turned on. The executive unit 10 is activated and generates a signal at the output of the device. After a certain time has elapsed, the relay 9 temporarily removes the signal from the power unit} of the K) and Si-n block. 1 at its output disappears. If the pic is incorrectly typed, then the signal from the unit 2 on the right, the shadow of the false code starts the counter 7 and switches the time relay 9 through the switch 8. Simultaneously with the activation of the time relay 9 through the open element I 13, the display unit 1 1 is also turned on. But after a certain time has elapsed, time relay 9 turns off the indication and sets block 3 on code and block 2 on the basis of which the false code returns to its initial state, and counter 7 is set to 1 m (1 de 111). If p) a second attempt is made to incorrectly dial, the circuit is triggered in a similar way, and counter 7 is set to no-, and) female 11, and so on. As soon as the value of counter 7 becomes rav1P) 1m “Oh, the commutator 8 and 1dk will work, -1yucht bc, chok 2 of the detection of the South code to the trigger input 5. Thus, an attempt of the wrong set will occur after this will cause the signal at the output of block 2, you are left 1P1Ya. SOUTHERN code, which through switch 8 turns on trigger 5 and blocks block 3 of receiving code. The signal from the output of the trigger 5 will open the first element of H 6 and close the second e, 1 of H 13, thereby raising the indicator when dialing the wrong code.

 azb, 1 () lock lock occurs when the unlock code is dialed, which will cause the appearance of a signal at the output of block 4 of the unlock code reception. This signal, through the open element 6, sets the counter 7 to the initial state. Switch 8 is transmitted, reads and removes the blocking signal from code reception unit 3. The castle is ready for fiem

five

five

0 0

five

0

five

five

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cipher. A subsequent set of the correct code combination trigger 5 is set to "()" and at the output of the execution unit 10 there is a message similar to that described. In addition, the signal from the trigger o opens the element And 13, and the signal thus triggered the indicator when trying incorrectly} the selected code.

Thus, in the proposed lock, unlike the known one, the indicator 11 only works when the lock is completely transferred from the locked state to the initial state, i.e. when operation of a current of 3 code receptions and the trigger 5 in "O. is authorized The operation of the block 3 of the code is resolved after dialing the correct code of the partitioning and triggering of the switch 8, and the installation of the trigger 5 in the "O signal is performed, volume with b; | (code set 3 for the rules1) H (the dial of the code. Therefore In a previous device, the secrecy of a lock is determined by the number of attempts, equal to the product of the number of sub-key attempts and the unlock code, and not their sum as in the known.

Claims (1)

Isopretsni formula Code lock that contains a code dialing block, first | | B1) 1 input which is connected to the first input of the standby code detection unit, the second output is connected to the first input of the code block, the third output is connected to the first input of the unlock code reception block The second input of which is connected to the trigger output and the first input of e.chement 11. vi) The input of the code receiving block of the breaking code is connected to the second input of the element H, the output of the I element is connected to the installation input of the counter, its counting input connected to the output of the block you are a false code and the first input of the switch, the second input of the counter connected to the output, the first 1 1V input of the switch is connected to the second input of the code receiving unit and the first 1 1 input of the trigger, the second switch i is connected to the first 1) 1 m input of the time relay, the second input of the time relay is connected to the 11th switch ( .) the output of the code receiving unit and the second trigger input, the first Bbiii output pe, is connected to the third input of the receiving unit and the second input of the output module, the second output time relay is connected to the second output terminal of the control unit, to the second whose entrance One second output of the code receiving unit, an indicator, characterized in that, in order to increase secrecy, it contains a NOT element and an additional AND element, and the third output of the time relay is connected to the first input of the additional I element, to the second input the output of the trigger is NOT connected via the element, and the indicator input is connected to the output of the additional element AND.