Bi-directional communication electronic lock

Abstract

The invention discloses a bidirectional communication electronic lock comprising a key microprocessor 1, a key communication module 2, a key programming interface 3, a key power supply module 4, a lock clock module 5, a lock communication module 7, an input module 8, a display 9, an indication lamp 10, a speaker 11, a mechanical lock 12, a lock programming interface 13, and a lock power supply module 14. The bi-directional communication electronic lock ciphers the ID data of lock, random number and clock data into a data signal A and transmits it to a key which decodes ID data of a lock and clock data, then cipher the password of key, random number and clock data into a data signal B and transmits B to the lock which unlock after decoding a correct password for the lock and the clock data. The key is not provided with a battery, and becomes compact and portable. The key is inserted into the key hole, and the unlocking is automatically completed; contact electric signal communication is adopted, which guarantees high safety, smartness and stability of the lock.

Description

technical field [0001] The invention relates to an electronic lock, in particular to a two-way communication electronic lock. Background technique [0002] At present, various electronic locks have appeared on the market, and while bringing convenience, there are also some security defects. The widely used magnetic card lock is small in size and easy to use, but the magnetic card information is easy to be read and there is a risk of being copied. The widely used remote control locks are unlocked by transmitting radio frequency signals. There is a risk that the radio frequency signals are easily interfered and monitored, and the key needs battery power, which is generally bulky and inconvenient to carry. Invention patent CN201210261793.3 discloses a two-way interactive control method between a smart lock and a smart key. Three communications are performed between the lock and the key, which protects the unlock password to a certain extent, but due to the ID of the smart key ...

AI Technical Summary

Problems solved by technology

The widely used magnetic card lock is small in size and easy to use, but the magnetic card information is easy to be read and there is a risk of being copied

The widely used remote control locks are unlocked by transmitting radio frequency signals. There is a risk that the radio frequency signals are easily interfered and monitored, and the key needs battery power, which is generally large and inconvenient to carry.

Invention patent CN201210261793.3 discloses a two-way interactive control method between a smart lock and a smart key. Three communications are performed between the lock and the key, which protects the unlock password to a certain extent, but due to the ID of the smart key The number and unlock data packets have not been encrypted and are non-real-time changing data, so there is still a large possibility of leakage, and the key uses a non-contact method to supply power to the lock, and the power loss during the transmission process is serious, resulting in the battery capacity required for the key. Larger, so the key is bulky and cannot meet the requirements of portability

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