CN108777011A - A kind of high security recognition of face smart lock - Google Patents

Abstract

The present invention allows users to quickly open the door through face recognition technology, but many householders dare not use this technology as a verification method for family property safety. The present invention greatly minimizes this potential safety hazard through real-time monitoring of the mobile phone terminal and the lock terminal. Even traditional locks cannot avoid the risk of forgetting to close the door and being picked, but the present invention has an alarm device to notify the user at the first time to take timely treatment. The invention has extremely high security. Users can perform a series of operations such as real-time log query, door closing, secondary locking, and door opening on the door, realizing the application of face recognition safety locks and solving users' doubts. The present invention mainly sacrifices a certain accuracy rate by adopting a multi-frame comparison method, but improves safety, and uses a safety alarm system as a guarantee.

Description

A High Security Face Recognition Smart Lock

technical field

The invention designs a high-security face recognition intelligent lock.

Background technique

In modern life, every family has one or more locks to ensure indoor security. For traditional locks, the contact between people and locks, such as fingerprint recognition or keys, will cause trouble for people with inconvenient hands, and keys or radio frequency cards will also be lost or forgotten in other places. As an emerging technology, face recognition, It realizes non-contact and portable convenience, and becomes one of the mainstream biometric technologies in the future. However, the current recognition rate of face recognition technology has not reached 100% and the false recognition rate has not reached 0%, so there are potential safety hazards.

Contents of the invention

The present invention aims to solve the above-mentioned shortcomings of the prior art, and provides a convenient door lock identification system with an alarm function.

The technical solution adopted by the present invention to solve the technical problem: the alarm system includes multi-frame threshold alarm, emergency door lock, multi-level alarm and face detection.

Preferably, the face recognition system is used as a way to unlock the door lock. The user can choose a non-contact and convenient way to unlock.

Preferably, an infrared sensing device is installed on the outer part of the face detection device, and when there is a person nearby, the circuit is connected and the face detection device is turned on. Reduce the energy consumption of the face recognition device in the smart lock.

As a preference, when the face recognition device is in working condition, a threshold is set, if the lock is not unlocked within the time range, it is judged as a first-level alarm level, and is fed back to the mobile phone terminal through the lock terminal. If someone nearby does not try to unlock the lock for a long time, it is considered a potential safety hazard.

Preferably, when the face recognition device is in working state and detects a human face, the photo to be recognized is collected through the camera to collect video streams and frames. Collect 50 photos after the face is detected, and set a threshold. If the recognition rate is lower than the threshold, it will be judged as a second-level alarm level, and the pictures will be fed back to the mobile phone to determine whether to activate the emergency device.

As preferably, when the face recognition device is in working condition and detects a human face, but the door is opened without starting the face recognition device or unlocking the door by other means, it will be judged as a third-level alarm level, and a short message reminder will be sent to the mobile phone .

Description of drawings

Fig. 1 is a block diagram of the gate structure of the system of the present invention.

Fig. 2 is a flow chart of the lock core structure of the system of the present invention.

Fig. 3 is the three-terminal interaction mode of the system of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

As shown in Figures 1-3, a smart door lock includes a main control module 1, an identification module 2, a wifi module 3, an infrared sensing module 4, a camera module 5 and a lock module 6 at the door lock end. The identification module is used to identify the user's unlocking operation instruction and transmits the data to the main control module 1 to determine whether to unlock; the wifi module 3 is used for the interaction between the lock end and the mobile phone end, so that the lock end is provided to the mobile phone end Data and mobile phone end to operate some instructions of the lock end; the infrared sensing module 4 is mainly used to control the on-off of the door lock end circuit, so as to realize the effect of saving electric energy; the described camera module 5 mainly collects the head portrait of the person who unlocks the lock ; The lock module 6 is mainly composed of 2 door locks, the first unlocking information is provided to the main control module 1 by the identification module 2, and the main control module 1 judges whether to lock or unlock, and the second unlocking information is provided by the mobile phone , and then determine whether to lock or unlock through the main control module 1.

In the present invention, the wifi module adopts the chip of model HI3518 and model 7601, which has the characteristics of fast transmission rate and convenient connection, and can transmit the video collected by the camera to the main control module, and can also be used for the main control module and mobile phone communication.

In the present invention, after the video collected by the camera is transmitted to the main control module through the wifi module, the user performs face recognition through the memory card provided in the main control module and stores facial data, thereby unlocking. And the recognition module is not a single face recognition, it can also be unlocked by entering a password, which is more flexible. When the wrong password reaches 3 times, the information will also be provided to the mobile terminal.

In the present invention, the infrared sensing module 4 can detect that there are people nearby. When there are people nearby, the face recognition module is turned on to reduce power consumption, and it is in the sleep module when there is no one.

In the present invention, the lockset module 6 is made up of 2 lock cylinders and 2 double relays, and the first double relay controls the first lock cylinder by the result output by the identification module 2, and when the identification is successful, the first The double relays control the lock cylinder to retract and open the door. In general, the first double relay controls the lock cylinder to extend and close the door. And the first double relay can also be controlled on the mobile phone to open the door, even if the guest is allowed by the owner, he can enter the door without revealing the password information. The second double relay controls the second lock cylinder by the command of the mobile phone terminal, and is used as an emergency door lock, and is generally in a retracted state. When a dangerous situation is found on the mobile phone, the emergency door lock is locked, even if the dangerous person is inside the door, he cannot go out.

In the present invention, the mobile phone app used in this technology mainly has the functions of viewing the video collected by the camera, controlling the opening and closing of the door lock and assigning family members or police permissions.

First of all, users can view the visitor's information through the video collected by the camera in a timely manner in the mobile app; secondly, when the visitor does not conform to the behavior that should be adopted by the door lock, different alarm levels will be displayed on the mobile app, and the user can Take action according to the situation, but in the case of a three-level alarm, the emergency door is locked to control the danger in time. Under the user's demand, the user can share the information with the police members, so that even when the user falls asleep at night, the police finds a known hidden danger in the family, checks the information collected by the camera, and takes timely support if the situation is serious measure.

Claims (10)

1. An intelligent lock with face recognition function, including an alarm system, a face recognition system, a feedback device and an emergency device, etc., is characterized in that: the face recognition system is connected to the alarm system, and the alarm system affects the output state of the feedback and Whether to activate the emergency device. 2. The intelligent lock with face recognition function according to claim 1, characterized in that: collect data through video streams and save pictures in multiple frames for comparison, when the database contains the collected faces, unlock, otherwise report to the police. 3. The intelligent lock with face recognition function according to claim 2, characterized in that: when the opening time of the face recognition device reaches the set threshold time, a first-level alarm is activated. 4. The smart lock with face recognition function according to claim 2, characterized in that: when multiple frames are compared, there are situations of recognition success and failure, the success rate is calculated, and when the success rate is lower than the set threshold, a secondary alarm is activated. 5. The intelligent lock with face recognition function according to claim 2, characterized in that: when the lock is damaged or cannot be locked, a three-level alarm is activated. 6. The smart lock with face recognition function according to claim 3, characterized in that: when the first-level alarm is activated, it will be fed back to the mobile phone through the device to remind the user that someone is near the door lock. 7. The smart lock with face recognition function according to claim 4, characterized in that: when the secondary alarm is activated, it will be fed back to the mobile phone through the device to remind the user that someone is trying to open the door. 8. The smart lock with face recognition function according to claim 5, characterized in that: when the three-level alarm is activated, it will be fed back to the mobile terminal through the device, plus a text message reminder, and the emergency device will be activated at the lock terminal. 9. The intelligent lock with face recognition function according to claim 8, characterized in that: the emergency device is automatically opened in the case of a three-level alarm or manually opened by the user. 10. According to the smart lock with face recognition function according to the above claims, by setting different alarm levels, the potential safety hazards can be fed back to the user, and corresponding measures can be taken.