ELECTRONIC COMBINATION LOCK Russian patent published in 2016 - IPC E05B49/00 

FIELD: safety systems.

SUBSTANCE: invention relates to protection of various objects from unauthorized access. Electronic combination lock, which contains code receiving unit, connected to input bus, comparator unit, first group of inputs of which is connected with group of outputs of code receiving unit, and second group of inputs is connected with group of outputs of storage device, first counter and actuating unit, characterised by that it further includes adder, majority element, coincidence element, trigger, switching unit, second counter with 2^n-1 count module and third counter with 2ⁿ count module, which group of outputs is connected to B-adder group of inputs, A-adder group of inputs of which is connected with group of outputs of switching unit, set of inputs of which is connected with group of outputs of second counter 2^n-1 count module, output of which is connected to third counter count input to 2ⁿ count module, inverting input of the second counter count module 2ⁿ, connected to output of first counter, first comparison unit output is connected to first input element and match with metering input of trigger, output of which is connected to second input of coincidence element and to control input of switching unit and to first input of the majority decision element, second input is connected to second output of comparator unit, and third output is connected to trigger reset input, with its output and with metering input of third counter, group of adder outputs is connected with storage device group of inputs, coincidence element output is connected to actuating unit input.

EFFECT: technical result is reduction of probability of unauthorised opening of electronic code lock in definite time interval at given number of reference values of code combinations of reference values of codes by using each of reference values as access code reference value and opening code standard value, simplified electronic code lock due to use of shared reception channel and access and opening codes comparison.

1 cl, 1 tbl, 4 dwg