Dual protection method and system for electronic lock

Abstract

The invention provides a dual protection method and system for an electronic lock. The dual protection method comprises the following steps: a motor of an electronic lock is initialized to a zero position; whether the motor rotates forwards or not is judged, if yes, the motor rotates forwards, and if not, the motor rotates reversely; when the motor rotates forwards, the current value I1 of forward rotation of the motor is detected, and a forward rotation voltage value U1 is calculated; when the motor rotates reversely, the current value I2 of the reverse rotation of the motor is detected, and a reverse rotation voltage value U2 is calculated; when the motor rotates forwards, whether the forward rotation voltage value U1 within a set time t1 is larger than or equal to a forward rotation locked-rotor voltage value U3 or not is judged, and if yes, the motor is turned off; and if not, a motor fault alarm is given, and the motor is shut down at the same time. According to the invention, a method of combining the stalling current of a motor with action time is used to subdivide stalling within a certain time so as to distinguish whether the stalling is reasonable or not, so that the probability of overload and jamming of the motor is reduced, and the mechanism works more stably and reliably.

Description

technical field [0001] The invention relates to the technical field of electronic locks, in particular to an electronic lock double protection method and system. Background technique [0002] At present, there are two control methods for motor-type electronic locks, action time control and locked-rotor current control. Time control is mostly used in mechanisms with in-position detection signals, and locked-rotor current control is relatively common. Refer to the Chinese patent publication No. CN207863638U for an electronic head lock device that uses motor locked-rotor, including a housing and a The locking mechanism in the body, the housing is provided with a lock hole; the locking mechanism includes a motor, a cam, a locking pin and a spring, the cam is installed on the motor shaft, and the locking pin is slidably arranged on the locking mechanism. In the space, its inner end extends into the lock hole, the spring is arranged between the outer end of the lock pin and the h...

AI Technical Summary

Problems solved by technology

[0003] The present invention solves the problem that the existing motor-type electronic lock is easy to be stuck and not in place, and proposes a double protection method and system for the electronic lock, which combines the electronic lock current with the action time to prevent the lock within a certain period of time. Rotation is subdivided to distinguish whether it is reasonable to stall, thereby reducing the probability of motor overload and jamming, and making the mechanism work more stably and reliably

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