CN112349005A - Intelligent access control system capable of achieving door opening through voice recognition - Google Patents
Intelligent access control system capable of achieving door opening through voice recognition Download PDFInfo
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- CN112349005A CN112349005A CN202010962685.3A CN202010962685A CN112349005A CN 112349005 A CN112349005 A CN 112349005A CN 202010962685 A CN202010962685 A CN 202010962685A CN 112349005 A CN112349005 A CN 112349005A
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- voice
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/20—Individual registration on entry or exit involving the use of a pass
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C9/00—Individual registration on entry or exit
- G07C9/30—Individual registration on entry or exit not involving the use of a pass
- G07C9/32—Individual registration on entry or exit not involving the use of a pass in combination with an identity check
- G07C9/37—Individual registration on entry or exit not involving the use of a pass in combination with an identity check using biometric data, e.g. fingerprints, iris scans or voice recognition
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L17/00—Speaker identification or verification
- G10L17/02—Preprocessing operations, e.g. segment selection; Pattern representation or modelling, e.g. based on linear discriminant analysis [LDA] or principal components; Feature selection or extraction
Abstract
The invention provides an intelligent access control system for realizing door opening through voice recognition, which comprises: the sound sensing module is used for detecting sound data of a user who opens the door at present; the sound analysis module is used for analyzing the sound data detected by the sound sensing module; and the access control module is used for controlling the opening and closing of the door according to the analysis result of the sound analysis module. According to the intelligent access control system for realizing door opening through voice recognition, the single sensing mode at present is changed, non-contact recognition is realized, the information safety can be better ensured, and the detection efficiency is improved; in addition, from the aspect of information acquisition, the voice acquisition is more convenient, and meanwhile, the uniqueness and the privacy are better; moreover, from the perspective of security, the safety and the controllability of the information are realized.
Description
Technical Field
The invention relates to the technical field of intelligent access control, in particular to an intelligent access control system for realizing door opening through voice recognition.
Background
In the current intelligent access control system, the identity of an entrant is mainly identified in a fingerprint or card mode, and the intelligent access control system has certain security loopholes and cannot realize non-contact identification.
Disclosure of Invention
The invention provides an intelligent access control system for realizing door opening through voice recognition, which is used for changing the existing single induction mode, realizing non-contact recognition, ensuring the information security and improving the detection efficiency.
The invention provides an intelligent access control system for realizing door opening through voice recognition, which comprises:
the sound sensing module is used for detecting sound data of a user who opens the door at present;
the sound analysis module is used for analyzing the sound data detected by the sound sensing module;
and the access control module is used for controlling the opening and closing of the door according to the analysis result of the sound analysis module.
Furthermore, the intelligent access control system for realizing door opening through voice recognition further comprises an information transmission module, and the information transmission module is used for transmitting the sound data detected by the sound sensing module to the sound analysis module, transmitting the analysis result of the sound analysis module back to the sound sensing module, and transmitting the analysis result of the sound analysis module to the access control module.
Further, the information transmission module comprises a switch.
Furthermore, the intelligent access control system for realizing door opening through voice recognition further comprises a database for storing the pre-collected sound characteristic information of each legal user.
Further, the voice analysis module comprises a voice matching unit and a user identity judgment unit, wherein:
the voice matching unit is used for matching the voice data detected by the voice sensing module with the voice feature information of each legal user stored in the database;
and the user identity judging unit is used for judging whether the identity of the current door-opening user is legal or not according to the matching result obtained by the sound matching unit.
Further, the sound matching unit includes:
a similarity probability calculating subunit, configured to calculate a similarity probability between the voice feature of the current user and the voice feature of the voice feature stored in the database, based on a detected voice feature matrix constructed based on the voice feature extracted from the voice data of the current user detected by the voice sensing module and a legal feature matrix constructed based on the voice feature information of the legal user stored in the database,
wherein, a detection voice characteristic matrix t formed by processing a section of voice of user Y through characteristicsYExpressed as:
tY＝|tY1,tY2,…,tYn| (1)
wherein, tYiRepresenting the ith detection voice feature, and recording the detection voice feature which is not extracted into the voice feature as 0;
legal feature matrix T constructed based on sound feature information of user Y stored in the databaseYExpressed as:
TY＝|TY1,TY2,…,TYn| (2)
wherein n is the number of the characteristic information, n is a natural number greater than 1, TYiRepresenting the legal feature corresponding to the ith detection voice feature, marking the legal feature which has not extracted the voice feature as 0,
for detecting speech feature matrix tYI.e. detecting the speech feature tYiI is an integer greater than 1 and less than n, which is associated with a legal feature matrix T of user Y stored in the databaseYThe ith element inPrime, i.e. legal feature TYiThe similarity probability of (c) is:
detection voice characteristic matrix t of current userYAnd a legal feature matrix T stored in the databaseYThe similarity probability of (c) is:
namely:
wherein, I represents the quantity of all the acquired characteristic information;
if P (Y) is more than or equal to 0.8 and I is more than or equal to 0.75n, the identity of the current user is judged to be a legal identity, otherwise, the identity is judged to be an illegal identity.
Further, the sound sensing module includes a microphone and a speaker, wherein:
the sound pick-up is used for picking up sound data of the current door-opening user;
the loudspeaker is used for carrying out voice broadcast according to the analysis result of the sound analysis module.
Furthermore, the loudspeaker is also used for carrying out voice alarm under the condition that the analysis result of the sound analysis module is that the current door opening user belongs to an illegal user.
Furthermore, the intelligent access control system for realizing door opening through voice recognition further comprises an access control card module for controlling the opening and closing of the door through the access control card.
Further, the entrance guard card module includes: card sender customer end, card sender and card reader, wherein:
the card sender is used for sending the access control card through the card sending client;
the card reader is used for reading information in the access control card;
the entrance guard control module is also used for controlling the opening and closing of the door according to the reading result of the card reader.
The intelligent access control system for realizing door opening through voice recognition provided by the embodiment of the invention has the following beneficial effects: the current single induction mode is changed, non-contact identification is realized, the information safety can be better ensured, and the detection efficiency is improved; in addition, from the aspect of information acquisition, the voice acquisition is more convenient, and meanwhile, the uniqueness and the privacy are better; moreover, from the perspective of security, the safety and the controllability of the information are realized.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a block diagram of an intelligent access control system that realizes door opening through voice recognition in an embodiment of the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
An embodiment of the present invention provides an intelligent access control system that realizes door opening through voice recognition, as shown in fig. 1, including:
the voice sensing module 101 is used for detecting voice data of a user who opens a door at present;
a sound analysis module 103, configured to analyze the sound data detected by the sound sensing module;
and the access control module 104 is used for controlling the opening and closing of the door according to the analysis result of the sound analysis module.
The working principle of the technical scheme is as follows: the invention realizes the detection, matching and data acquisition of sound information based on the sound sensing module 101, the sound analysis module 103 and the access control module 104.
Specifically, in the present invention, the sound sensing module 101 detects sound data of a user currently opening a door, where the sound data is, for example, voiceprint data; the sound analysis module 103 analyzes the sound data detected by the sound sensing module; the door access control module 104 controls the opening and closing of the door according to the analysis result of the sound analysis module.
In operation, after the sound sensing module 101 detects the sound data, the information of the sound data is transmitted to the sound analysis module 103 (for example, the sound analysis module may be a management system platform), the information of the analysis result obtained by the sound analysis module 103 is transmitted to the access control module 104, and a preset action is triggered, where the preset action may be, for example, door opening, voice broadcast, voice alarm, and the like.
Furthermore, the intelligent access control system for realizing door opening through voice recognition further comprises a door opening button 107 arranged in the door, so that a user in the door can directly open the door through the door opening button 107.
The beneficial effects of the above technical scheme are: the current single induction mode is changed, non-contact identification is realized, the information safety can be better ensured, and the detection efficiency is improved; in addition, from the aspect of information acquisition, the voice acquisition is more convenient, and meanwhile, the uniqueness and the privacy are better; moreover, from the perspective of security, the safety and the controllability of the information are realized.
In one embodiment, the intelligent door access system that realizes door opening through voice recognition further includes an information transmission module 102, configured to transmit the sound data detected by the sound sensing module 101 to the sound analysis module 103, transmit an analysis result of the sound analysis module 103 back to the sound sensing module 101, and transmit an analysis result of the sound analysis module 103 to the door access control module 104.
The working principle of the technical scheme is as follows: the information among the sound sensing module 101, the sound analysis module 103 and the access control module 104 is transmitted through a network, and the information transmission module 102 includes an exchanger as an example and not a limitation.
Specifically, after the sound sensing module 101 detects sound data, the information of the sound data is transmitted to the sound analysis module 103 through the information transmission module 102, the obtained information of the analysis result is transmitted back to the sound sensing module 101 through the information transmission module 102 by the sound analysis module 103, and the obtained information of the analysis result is transmitted to the access control module 104 through the information transmission module 102 by the sound analysis module 103.
The beneficial effects of the above technical scheme are: by means of the switch, information transmission among the sound sensing module, the sound analysis module and the access control module can be achieved.
In one embodiment, the intelligent access control system for opening a door through voice recognition further includes a database 105 for storing pre-collected voice feature information of each legal user.
The working principle of the technical scheme is as follows: the sound analysis module 103 includes a sound matching unit and a user identity determination unit, wherein:
the voice matching unit is configured to match the voice data detected by the voice sensing module 101 with voice feature information of each legal user stored in the database 105;
and the user identity judging unit is used for judging whether the identity of the current door-opening user is legal or not according to the matching result obtained by the sound matching unit.
Further, a threshold of matching degree may be set, and if the matching degree between the sound data detected by the sound sensing module 101 and the sound feature information of each legal user stored in the database 105 exceeds a preset threshold of matching degree (for example, 95%), the user identity determining unit determines that the identity of the current door-opening user is legal; on the contrary, if the matching degree between the voice data detected by the voice sensing module 101 and the voice feature information of each legal user stored in the database 105 is lower than a preset matching degree threshold (for example, 95%), the user identity determination unit determines that the identity of the user currently opening the door is illegal. It should be noted that the specific value of the threshold matching degree and the matching algorithm are not specifically limited in the present invention.
As an example and not by way of limitation, the matching process may be performed by a management system platform, where the management system platform simulates voice information (pre-stored voiceprint) of a legal user pre-stored in the database 105 and voice data (voiceprint data) detected by the voice sensing module 101 as a time-fluctuation signal diagram in the same coordinate system, and selects a pre-stored voiceprint and a region where the amplitude of the voiceprint data is greater than a set value to overlap in sequence; and in the overlapping interval, if the maximum amplitude difference of the pre-stored voiceprint and voiceprint data is smaller than the set amplitude difference, the matching is regarded as successful, the percentage of the overlapping interval which is successfully matched to the total overlapping interval is counted and used as the matching degree of the management system platform, and the user identity judging unit judges whether the identity of the current door opening user is legal or not according to the matching degree.
The beneficial effects of the above technical scheme are: by means of the database, the pre-collected sound characteristic information of each legal user can be stored, and by means of the sound matching unit and the user identity judging unit, whether the identity of the current door opening user is legal or not can be determined.
In one embodiment, the sound matching unit includes:
a similarity probability calculating subunit, configured to calculate a similarity probability between the voice feature of the current user and the voice feature of the voice feature stored in the database, based on a detected voice feature matrix constructed based on the voice feature extracted from the voice data of the current user detected by the voice sensing module and a legal feature matrix constructed based on the voice feature information of the legal user stored in the database,
wherein, a detection voice characteristic matrix t formed by processing a section of voice of user Y through characteristicsYExpressed as:
tY＝|tY1,tY2,…,tYn| (1)
wherein, tYiRepresenting the ith detection voice feature, and recording the detection voice feature which is not extracted into the voice feature as 0;
legal feature matrix T constructed based on sound feature information of user Y stored in the databaseYExpressed as:
TY＝|TY1,TY2,…,TYn| (2)
wherein n is the number of the characteristic information, n is a natural number greater than 1, TYiRepresenting the legal feature corresponding to the ith detection voice feature, marking the legal feature which has not extracted the voice feature as 0,
for detecting speech feature matrix tYI.e. detecting the speech feature tYiI is an integer greater than 1 and less than n, which is associated with a legal feature matrix T of user Y stored in the databaseYThe ith element in (1), i.e. legal feature TYiThe similarity probability of (c) is:
detection voice characteristic matrix t of current userYAnd a legal feature matrix T stored in the databaseYThe similarity probability of (c) is:
namely:
wherein, I represents the quantity of all the acquired characteristic information;
if P (Y) is more than or equal to 0.8 and I is more than or equal to 0.75n, the identity of the current user is judged to be a legal identity, otherwise, the identity is judged to be an illegal identity.
The working principle of the technical scheme is as follows: since all n feature values are not necessarily obtained after one voice information acquisition, the feature values that cannot be obtained are recorded as 0 for the convenience of calculation. Correspondingly, when the feature value is not obtained, the detected voice feature and the corresponding legal feature do not participate in the subsequent similarity calculation.
And when the P (Y) is more than or equal to 0.8 and the I is more than or equal to 0.75n, the matching between the currently provided voice information and the voice information of the Y user stored in the database is successful, the current identity is a legal identity, and otherwise, the current identity is judged to be an illegal identity.
The beneficial effects of the above technical scheme are: when the user voice identity information is judged, accurate judgment can be achieved without depending on all sound characteristics, a user does not need to provide a large amount of voice information, user experience is improved, meanwhile, the judging time of identity legality is shortened, and judging efficiency is improved. And finally, the accuracy of the final judgment result on whether the user is legal can be ensured through the limiting conditions of the two parameters P (Y) and I.
In one embodiment, the sound sensing module 101 comprises a microphone and a speaker, wherein:
the sound pick-up is used for picking up sound data of the current door-opening user;
the loudspeaker is used for carrying out voice broadcast according to the analysis result of the sound analysis module.
The working principle of the technical scheme is as follows: the loudspeaker is also used for carrying out voice alarm under the condition that the analysis result of the sound analysis module indicates that the current door opening user belongs to an illegal user.
As described above, since the information of the analysis result obtained by the sound analysis module 103 is transmitted back to the sound sensing module 101 through the information transmission module 102, the analysis result of the sound analysis module 103 can be broadcasted and alarmed by voice through the speaker in the sound sensing module 101. Illustratively, the sound pickup is a microphone and the speaker is a loudspeaker.
The beneficial effects of the above technical scheme are: by means of a sound pick-up, sound data of a user currently opening the door can be picked up, and by means of a loudspeaker, voice broadcasting can be performed.
In one embodiment, the intelligent access control system for opening the door through voice recognition further includes an access card module 106, configured to control opening and closing of the door through an access card.
The working principle of the technical scheme is as follows: the entrance guard card module 106 is used in combination with the sound sensing module 101, the sound analysis module 103 and the entrance guard control module 104, so that the traditional card identification, fingerprint identification and sound detection can be combined, and the information safety and detection efficiency can be further improved.
Specifically, the access card module 106 includes: card sender customer end, card sender and card reader, wherein:
the card sender is used for sending the access control card through the card sending client;
the card reader is used for reading information in the access control card;
the entrance guard control module is also used for controlling the opening and closing of the door according to the reading result of the card reader.
The beneficial effects of the above technical scheme are: by means of the access card module, the opening and closing of the door can be controlled through the access card.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. The utility model provides an intelligent access control system who opens door through speech recognition realization which characterized in that includes:
the sound sensing module is used for detecting sound data of a user who opens the door at present;
the sound analysis module is used for analyzing the sound data detected by the sound sensing module;
and the access control module is used for controlling the opening and closing of the door according to the analysis result of the sound analysis module.
2. The intelligent access control system for realizing door opening through voice recognition according to claim 1, further comprising an information transmission module for transmitting the voice data detected by the voice sensing module to the voice analysis module, transmitting the analysis result of the voice analysis module back to the voice sensing module, and transmitting the analysis result of the voice analysis module to the access control module.
3. The intelligent access control system for realizing door opening through voice recognition according to claim 1, wherein the information transmission module comprises a switch.
4. The intelligent access control system for realizing door opening through voice recognition according to claim 1, wherein the intelligent access control system for realizing door opening through voice recognition further comprises a database for storing pre-collected voice feature information of each legal user.
5. The intelligent access control system for realizing door opening through voice recognition according to claim 4, wherein the voice analysis module comprises a voice matching unit and a user identity judgment unit, wherein:
the voice matching unit is used for matching the voice data detected by the voice sensing module with the voice feature information of each legal user stored in the database;
and the user identity judging unit is used for judging whether the identity of the current door-opening user is legal or not according to the matching result obtained by the sound matching unit.
6. The intelligent access control system for realizing door opening through voice recognition according to claim 5, wherein the sound matching unit comprises:
a similarity probability calculating subunit, configured to calculate a similarity probability between the voice feature of the current user and the voice feature of the voice feature stored in the database, based on a detected voice feature matrix constructed based on the voice feature extracted from the voice data of the current user detected by the voice sensing module and a legal feature matrix constructed based on the voice feature information of the legal user stored in the database,
wherein, a detection voice characteristic matrix t formed by processing a section of voice of user Y through characteristicsYExpressed as:
tY＝|tY1,tY2,…,tYn| (1)
wherein, tYiRepresenting the ith detection voice feature, and recording the detection voice feature which is not extracted into the voice feature as 0;
legal feature matrix T constructed based on sound feature information of user Y stored in the databaseYExpressed as:
TY＝|TY1,TY2,…,TYn| (2)
wherein n is the number of the characteristic information, n is a natural number greater than 1, TYiRepresenting the legal feature corresponding to the ith detection voice feature, marking the legal feature which has not extracted the voice feature as 0,
for detecting speech feature matrix tYI.e. detecting the speech feature tYiI is an integer greater than 1 and less than n, which is associated with a legal feature matrix T of user Y stored in the databaseYThe ith element in (1), i.e. legal feature TYiThe similarity probability of (c) is:
detecting words of current userTone feature matrix tYAnd a legal feature matrix T stored in the databaseYThe similarity probability of (c) is:
namely:
wherein, I represents the quantity of all the acquired characteristic information;
if P (Y) is more than or equal to 0.8 and I is more than or equal to 0.75n, the identity of the current user is judged to be a legal identity, otherwise, the identity is judged to be an illegal identity.
7. The intelligent access control system for realizing door opening through voice recognition according to claim 1, wherein the sound sensing module comprises a sound pickup and a speaker, wherein:
the sound pick-up is used for picking up sound data of the current door-opening user;
the loudspeaker is used for carrying out voice broadcast according to the analysis result of the sound analysis module.
8. The intelligent access control system realizing door opening through voice recognition according to claim 7, wherein the speaker is further configured to perform voice alarm when the analysis result of the sound analysis module indicates that the current door opening user belongs to an illegal user.
9. The intelligent access control system for realizing door opening through voice recognition according to claim 1, further comprising an access card module for controlling the opening and closing of the door through the access card.
10. The intelligent access control system for realizing door opening through voice recognition according to claim 1, wherein the access control card module comprises: card sender customer end, card sender and card reader, wherein:
the card sender is used for sending the access control card through the card sending client;
the card reader is used for reading information in the access control card;
the entrance guard control module is also used for controlling the opening and closing of the door according to the reading result of the card reader.
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Application publication date: 20210209 |