CN111402461A - A voiceprint-based smart door lock system - Google Patents

Abstract

The invention discloses an intelligent door lock system based on voiceprints, which comprises: the voiceprint receiving and processing module is used for receiving the sound and carrying out noise filtering and feature extraction on the sound; the storage module is used for storing the voice signal of the user in advance and storing the voice signal received and processed by the voiceprint receiving and processing module; the calling module is used for calling the voice signal of the user stored in the storage module in advance and matching the voice signal received and processed by the voiceprint receiving and processing module through the comparison module; the fingerprint identification module and the password input module are respectively used for controlling the unlocking of the electric lock through fingerprints or digital passwords after the voice of a user does not pass through the matching smoothly; the invention saves more electric energy, can avoid noise interference and is beneficial to accurately extracting the vocal print characteristics; when the electric lock is not unlocked through the voiceprint matching, the fingerprint identification module and the password input module, the functions of alarming and video monitoring can be achieved, and the safety is improved.

Description

A voiceprint-based smart door lock system

technical field

The invention relates to the technical field of intelligent door lock systems, in particular to a voiceprint-based intelligent door lock system.

Background technique

The intelligent door lock system is deeply loved by people because of its convenience and high efficiency. However, the feature extraction of the voiceprint by the existing voiceprint intelligent door lock system is easily disturbed by noise, which makes it impossible to accurately extract the voiceprint features. After the voiceprint matching is abnormal, the door lock cannot be opened, and the voiceprint feature cannot be re-entered, which is inconvenient to use and has low security. For this reason, we have launched a voiceprint-based smart door lock system.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a voiceprint-based smart door lock system to solve the above-mentioned problems in the background art.

To achieve the above object, the present invention provides the following technical solutions: a voiceprint-based intelligent door lock system, comprising:

A voiceprint receiving and processing module, which is used to receive sound and perform noise filtering and feature extraction on the sound;

a storage module, which is used to pre-store the user's voice signal and store the processed voice signal received by the voiceprint receiving and processing module;

a retrieval module, which is used for retrieving the pre-stored user's voice signal in the storage module, and matches the voice signal received and processed by the comparison module and the voiceprint receiving and processing module;

The fingerprint identification module and the password input module are respectively used to control the electric lock to open through the fingerprint or digital password after the user's voice fails to be successfully matched;

The infrared sensor module is used to sense the user's approach to the door lock. At this time, the central processing unit controls the power supply module to the storage module, electric lock, password input module, fingerprint recognition module, alarm module, retrieval module, high-speed dome camera, sound The pattern receiving and processing module and the comparison module provide power.

As a further optimization of this technical solution, the voiceprint receiving and processing module includes a sound receiving unit, a noise filtering unit and a feature extraction unit.

As a further optimization of this technical solution, the sound receiving unit is used to receive sound, the noise filtering unit is used to filter the noise in the sound signal received by the sound receiving unit, and the feature extraction unit is used to extract features of the sound .

As a further optimization of this technical solution, the central processing unit is also connected to an intelligent terminal through a wireless communication module signal. After the user's voice has not been matched, and the fingerprint identification module and the password input module cannot be made through fingerprints or digital passwords When the electric lock is controlled to open, the central processor controls the high-speed dome camera to shoot the real-time video of the user and displays it on the intelligent terminal.

As a further optimization of this technical solution, the alarm module is used to generate an alarm when the user's voice has not been matched, and the fingerprint identification module and the password input module cannot control the electric lock to open through the fingerprint or digital password.

As a further optimization of this technical solution, when the user's voice signal received through the voiceprint receiving and processing module fails to match the user's voice signal pre-stored in the storage module, but the user inputs the user's voice signal through the fingerprint identification module and the password input module When the fingerprint and the digital password successfully open the electric lock, the storage module will store the user's voice signal received by the voiceprint receiving and processing module.

Compared with the prior art, the beneficial effects of the present invention are: when the user approaches the door lock, the infrared sensing module senses, and then the central processing unit controls the power supply module to supply the storage module, the electric lock, the password input module, and the fingerprint. The identification module, the alarm module, the retrieval module, the high-speed dome camera, the voiceprint receiving and processing module and the comparison module provide power to make it in a standby state, which can avoid the storage module, electric lock, password input module, fingerprint identification module, and alarm module. , the retrieval module, the high-speed dome camera, the voiceprint receiving and processing module and the comparison module have been in the standby state to save power;

Then the user makes a sound and receives the sound through the sound receiving unit. The noise filtering unit is used to filter the noise in the sound signal received by the sound receiving unit, and then the feature extraction unit is used to extract the characteristics of the sound, which can avoid noise interference. It is conducive to the accurate extraction of voiceprint features;

At this time, the pre-stored user's voice signal in the storage module is retrieved through the retrieval module, and the processed voice signal is received and matched by the comparison module and the voiceprint receiving and processing module;

After the matching is successful, the electric lock will be automatically opened. After the matching fails, the user can input the fingerprint and the digital password through the fingerprint identification module and the password input module respectively, so that the electric lock will be opened. The user's voice signal is stored, so that the user can successfully pass the voiceprint matching next time;

When the user's voice signal received through the voiceprint receiving and processing module fails to match the user's voice signal pre-stored in the storage module, and the user fails to input fingerprint and digital password through the fingerprint identification module and the password input module When the electric lock is opened, the alarm module generates an alarm, and at the same time, the central processor controls the high-speed dome camera to display the real-time video of the user on the intelligent terminal, which facilitates alarming and video monitoring and improves security.

Description of drawings

1 is a schematic diagram of a voiceprint-based smart door lock system of the present invention;

FIG. 2 is a schematic diagram of a voiceprint receiving and processing module of the present invention.

In the picture: 1 storage module, 2 infrared sensor module, 3 central processing unit, 4 power supply module, 5 retrieval module, 6 electric lock, 7 password input module, 8 fingerprint recognition module, 9 intelligent terminal, 10 wireless communication module, 11 Alarm module, 12 high-speed dome cameras, 13 voiceprint receiving and processing modules, 14 comparison modules, 15 noise filtering units, 16 feature extraction units, 17 sound receiving units.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

1-2, the present invention provides a technical solution: a voiceprint-based smart door lock system, including:

Voiceprint receiving and processing module 13, which is used for receiving sound and performing noise filtering and feature extraction on the sound;

The storage module 1 is used to store the user's voice signal in advance and store the processed voice signal received by the voiceprint receiving and processing module 13;

The retrieval module 5 is used to retrieve the pre-stored user's voice signal in the storage module 1, and receive and process the voice signal through the comparison module 14 and the voiceprint receiving and processing module 13 for matching;

The fingerprint identification module 8 and the password input module 7 are respectively used to control the electric lock 6 to open through a fingerprint or a digital password after the user's voice fails to be successfully matched;

The infrared sensor module 2 is used to sense the user approaching the door lock. At this time, the central processing unit 3 controls the power supply module 4 to supply the storage module 1, the electric lock 6, the password input module 7, the fingerprint recognition module 8, the alarm module 11, the adjustment The acquisition module 5 , the high-speed dome camera 12 , the voiceprint receiving and processing module 13 and the comparison module 14 provide power.

Specifically, the voiceprint receiving and processing module 13 includes a voice receiving unit 17 , a noise filtering unit 15 and a feature extracting unit 16 .

Specifically, the sound receiving unit 17 is used to receive sound, the noise filtering unit 15 is used to filter the noise in the sound signal received by the sound receiving unit 17 , and the feature extraction unit 16 is used to extract the features of the sound.

Specifically, the central processing unit 3 is also connected to the smart terminal 9 through the wireless communication module 10. After the user's voice has not been matched, and the fingerprint identification module 8 and the password input module 7 cannot be made through fingerprints or digital passwords When the electric lock 6 is controlled to open, the central processing unit 3 controls the high-speed dome camera 12 to display the real-time video of the user on the intelligent terminal 9 .

Specifically, the alarm module 11 is used to generate an alarm when the user's voice has not been matched, and the fingerprint identification module 8 and the password input module 7 cannot control the electric lock 6 to open through the fingerprint or digital password.

Specifically, when the user's voice signal received through the voiceprint receiving and processing module 13 fails to match the user's voice signal pre-stored in the storage module 1, but the user inputs a fingerprint through the fingerprint identification module 8 and the password input module 7 When the electric lock 6 is successfully opened with the digital password, the storage module 1 stores the user's voice signal received by the voiceprint receiving and processing module 13 .

Working principle: When the user approaches the door lock, the infrared sensor module 2 senses it, and then the central processing unit 3 controls the power supply module 4 to the storage module 1, the electric lock 6, the password input module 7, the fingerprint recognition module 8, and the alarm module 11. , the retrieval module 5, the high-speed dome camera 12, the voiceprint receiving and processing module 13 and the comparison module 14 provide power to make it in a standby state, which can avoid the storage module 1, the electric lock 6, the password input module 7, and the fingerprint identification module 8. , the alarm module 11, the retrieval module 5, the high-speed dome camera 12, the voiceprint receiving and processing module 13 and the comparison module 14 are always in a standby state to save power;

Then the user makes a sound, and the sound is received by the sound receiving unit 17. The noise filtering unit 15 is used to filter the noise in the sound signal received by the sound receiving unit 17, and then the feature extraction unit 16 is used to extract the characteristics of the sound, which can avoid Noise interference, which is conducive to the accurate extraction of voiceprint features;

At this time, the pre-stored user's voice signal in the storage module 1 is retrieved through the retrieval module 5, and the processed voice signal is received and matched by the comparison module 14 and the voiceprint receiving and processing module 13;

After the matching is successful, the electric lock 6 is automatically opened. After the matching fails, the user can input a fingerprint and a digital password through the fingerprint identification module 8 and the password input module 7 respectively, so that the electric lock 6 is opened. At this time, the storage module 1 will receive through the voiceprint. The user's voice signal received by the processing module 13 is stored, so that the user can successfully pass the voiceprint matching next time;

When the user's voice signal received by the voiceprint receiving and processing module 13 fails to match the user's voice signal pre-stored in the storage module 1, and the user inputs a fingerprint and a digital password through the fingerprint identification module 8 and the password input module 7 When the electric lock 6 is also unsuccessfully opened, the alarm module 11 generates an alarm, and the central processing unit 3 controls the high-speed dome camera 12 to shoot the real-time video of the user and displays it on the intelligent terminal 9, which is conducive to the alarm and the alarm. Video surveillance for increased security.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. an intelligent door lock system based on voiceprint, is characterized in that, comprises: A voiceprint receiving and processing module (13), which is used for receiving sound and performing noise filtering and feature extraction on the sound; a storage module (1), which is used for pre-storing the voice signal of the user and storing the voice signal after receiving and processing by the voiceprint receiving and processing module (13); A retrieval module (5), which is used for retrieving the pre-stored user's voice signal in the storage module (1), and receives the processed voice signal through the comparison module (14) and the voiceprint receiving and processing module (13) for matching ; The fingerprint identification module (8) and the password input module (7) are respectively used to control the opening of the electric lock (6) through a fingerprint or a digital password after the user's voice fails to be successfully matched; The infrared sensing module (2) is used for sensing the user's approach to the door lock, and at this time, the central processing unit (3) controls the power supply module (4) to the storage module (1), the electric lock (6), and the password input module (7). ), a fingerprint identification module (8), an alarm module (11), a retrieval module (5), a high-speed dome camera (12), a voiceprint receiving and processing module (13) and a comparison module (14) to provide power. 2. A voiceprint-based smart door lock system according to claim 1, wherein the voiceprint receiving and processing module (13) comprises a sound receiving unit (17), a noise filtering unit (15) and a characteristic Extraction unit (16). 3. A voiceprint-based smart door lock system according to claim 2, wherein the sound receiving unit (17) is used for receiving sound, and the noise filtering unit (15) is used for receiving sound The noise in the sound signal received by the unit (17) is filtered, and the feature extraction unit (16) is used for extracting the features of the sound. 4. a kind of intelligent door lock system based on voiceprint according to claim 1, is characterized in that: described central processing unit (3) is also connected with intelligent terminal (9) through wireless communication module (10) signal, in After the user's voice has not been matched, and the fingerprint identification module (8) and the password input module (7) cannot control the electric lock (6) to open through the fingerprint or digital password, the central processing unit (3) controls the high-speed dome camera. (12) The real-time video captured by the user is displayed on the intelligent terminal (9). 5. A kind of intelligent door lock system based on voiceprint according to claim 1, is characterized in that: described alarm module (11) is used for after the user's voice has not been matched, and through fingerprint or digital password also not The fingerprint identification module (8) and the password input module (7) can control the electric lock (6) to open to generate an alarm. 6. a kind of intelligent door lock system based on voiceprint according to claim 1, is characterized in that: when the voice signal of the user received by the voiceprint receiving processing module (13) fails to communicate with the storage module (1) The pre-stored user's voice signal matches, but when the user enters the fingerprint and the digital password through the fingerprint identification module (8) and the password input module (7) and successfully makes the electric lock (6) open, the storage module (1) will pass the voice signal. The voice signal of the user received by the pattern receiving and processing module (13) is stored.

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