Bluetooth bidirectional communication intelligent lock

Abstract

The invention discloses a Bluetooth bidirectional communication intelligent lock, which comprises a mechanical part, a motor module, a controller module, a storage module, a clock module, a touch screen module, a sound module, a power supply module, a Bluetooth module, a shielding can, a doorframe contact, a departure button, an indicator light, a key controller module, a key power supply module, an input module, a key Bluetooth module, and a key clock module. The invention is characterized in that positions of a key and the intelligent lock can be effectively judged through the intensity of a Bluetooth signal; the intelligent lock and the key can recognize each other in a bidirectional communication manner; and a key code is sent after the recognition succeeds. Current time is taken as a secret key, and communication information is encrypted through an AES algorithm. In comparison with the prior art, the lock needs no person to approach a sensor, and is relatively simple in system and comparably low in power consumption. The key code is protected through bidirectional matching; the key is prevented from copying; and the transmission content can be changed in real time. Monitoring is prevented, and the lock is relatively safe.

Description

Technical field [0001] The invention relates to the technical field of electronic locks, in particular to a Bluetooth two-way communication smart lock. Background technique [0002] In order to remove the tedious operation of inserting the key to unlock, many electronic lock control systems transmit control information wirelessly. With the continuous updating of Bluetooth technology, power consumption control has reached a satisfactory level, and the popularity of smart phones has also made Bluetooth mobile terminals readily available. Therefore, the combination of electronic locks and Bluetooth technology has become a major trend in the future. There are also many related products on the market. However, the characteristics of Bluetooth determine that its transmission data is easily intercepted by other communication devices, and the unlocking information is easy to be copied, and this copying party does not even know, and the harm is even greater than the mechanical key. The ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the above-mentioned problems in the prior art, and provide a Bluetooth two-way communication intelligent lock, which can effectively solve the problem that the communication process of the existing Bluetooth electronic lock is easy to be stolen and copied, the security is low, the system structure is complicated, and the operation is cumbersome. question

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