SU996711A1 - Electronic coded device for lock - Google Patents

Description

The invention relates to devices for locking rooms, in particular to an electronic code lock device. The electronic code lock device is known, which contains a power source, the output of which is connected to the bounce block via the reference code dialing key, the second key of the reference code dialing key and the dialing code block whose inputs are connected to the power supply source connected to the inputs of the register set code and the element SHS, the output of which through the trigger, the delay element, the prohibition element is connected to the block of the signaling signal, the clock pulse generator connected to the second inputs register. pa and flip-flop, a comparison block, the input of which is connected to the output of the dialing register, and the output to the executive unit and the second input of the prohibition element l. The disadvantage of this electronic-cod device for the lock is low secrecy, due to the lack of promptness in changing the code. The aim of the invention is to increase the segregation rate by increasing the efficiency of the code change. The goal is achieved by the fact that an electronic code device for a lock containing a power source, the output of which is connected to the bounce block through the telephone set point of the ethson code, the second key of the reference code set and the code set block whose inputs are connected to the power source , the outputs of the code dialing unit are connected to the inputs of the code dialing register and the OR element, whose output is via a trigger, a delay element, a prohibition element is connected to the alarm unit, a clock generator connected to the second inputs regis tra and trigger, a comparison unit whose input is connected to the output of the code dialing register and the output to the execution unit and the second input of the prohibition element has an additional key of the reference code set, a bounce block, a delay element, a reference code register and the OR element, and the additional key input connected to the output of the power source, and the output to the input of an additional bounce block, the output of which is connected to the first input of the register of the additional reference code and to the input of the additional delay element, its output is connected to the input element of the additional element OR whose second input is connected to the output of the chattering unit, and the output to the second input of the additional reference code register, the third input to the Output register of the reference code is connected to the output of the second set of the reference code set, the output of the additional reference code register connected to the inputs of the comparison unit.

In addition, in order to improve the convenience of changing the code, it has an indicator block connected to the output of the additional register of the reference code.

The drawing shows the proposed device.

The reference code device for the lock consists of a power source 1, the output of which through, the key of the set of the reference code 2 is connected to the deblocking unit 3, the second key of the set of the reference code 4, the block of the code 5, the register of the set b,. the element OR 7, the trigger 8, the element and the rod 9, the prohibition element 10, the alarm unit 11, the clock pulse generator 12, the comparison block 13, the executive unit 14, the additional key of the reference code set 15, the additional bounce block 16, in addition delay element 17, additional register of reference code 18, additional element OR 19, display unit 20.

The device operates as follows.

When the power source 1 is turned on, the register of the chip code 18 and the trigger 8 are set to zero, and the code set register 6 is in the one state (the setting driver of the initial state is not shown). Using the keys of the reference code set 2 and 15, the reference code is entered into the register of the reference code 18 as logical 0 and 1. The bounce block units 3 and 16 are designed to eliminate the false impulses that occur when the keys 2 and 15 are closed or open. Code 4 is used to set reference register 18 in О in case of incorrect installation of the code. An additional delay element 17 is designed to correctly trigger the register of the reference code 18 when entering logical 1 into it (the trigger is triggered on the leading edge of the signal received at input c). Reference Code Register

18 serves to enter and store the reference lock code. The display unit 20 indicates the reference code set in the reference code register 18 and thus serves to verify the correctness of the reference code in the reference code register 18. The code set register 6 is designed to fix the code 5 entered on the code set.

When a code is dialed on a block of code 5, the inputs of a logical element OR 7 are supplied with a constant voltage from a source, power 1, which forms a high potential at the output of this element, setting a trigger 8 to 1. As a result, potential with a high level, which then enters the delay element 9. The delayed delay element 9 does not allow the signal to pass for a certain predetermined time. This is necessary in order to wait for the time needed to dial the necessary code. If the code set is correct, from the output of the comparator unit 13, a high level potential is input to the input of the inhibit 10 logic element, which closes the inhibit logic element 10, thereby preventing the activation of the enable signal to the alarm unit 11. In the case where the code set there will be no- correct, the comparison block 13 will not work. The signal from the output of the delay element 9 passes through the element of the prohibition 10 and includes a block of alarm 11, since there is no prohibiting signal. Coming from the output of the comparison block 13 to the input of the prohibition element 10.

Returning the device to its original state (setting 1 of all the triggers of dialing register code 6 and; as a result, shutting down the executive unit 14, if the correct code was dialed, and setting the About trigger 8 and, as a result, turning on the alarm unit 11, if the wrong code is typed) occurs with the arrival of the next clock pulse from the clock pulse generator 12.

The electronic code device enters a state that allows for repeated code dialing.

Claims (1)

1. An electronic code lock device comprising a power source, the output of which is connected via a dial key of the reference code to a bounce block, a second key of the dial of the reference code, and a dial block code, the inputs of which are connected to a power source, the outputs of the code set block are connected to the inputs of the code set register and the OR element, whose output is via a trigger, delay element, prohibition element connected to the alarm unit, a clock generator connected to the second inputs of the register set code and trigger, the comparison unit, whose input is connected to the output of the code dialing register, and the output to the execution unit and the second input of the prohibition element, is distinguished by the fact that, in order to increase the secrecy of the lock, by The operability of the code change, it contains additional key for dialing the code, bounce block, delay element, reference code register and OR element, the additional key input is connected to the output of the power source, and the output is to the input of the additional bounce block, the KOTOpo.ro output is connected to the primary input of the register of the additional reference code and to the input of the additional delay delay, and its output is connected to the input of the additional element OR, the second input of which is connected to the output cm block debounce / output and input BTOpmiM with additional reference code register, the third input of additional reference code register connected to an output of the second reference code dialing key, outputs the reference code register further coupled to vhods1mi comparing unit. Sources of information taken into account in the examination of ul 1. USSR author's certificate 773242, cl. E 05 B 47/00, 10/19/78.