CN209799618U - Voice coded lock - Google Patents
Voice coded lock Download PDFInfo
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- CN209799618U CN209799618U CN201821931364.1U CN201821931364U CN209799618U CN 209799618 U CN209799618 U CN 209799618U CN 201821931364 U CN201821931364 U CN 201821931364U CN 209799618 U CN209799618 U CN 209799618U
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- Prior art keywords
- pronunciation
- main control
- control unit
- unit
- voice
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Abstract
The utility model discloses a pronunciation trick lock, including pronunciation acquisition unit, memory cell, main control unit and lock core drive unit, pronunciation acquisition unit wherein includes the microphone, pronunciation amplifier circuit and audio signal modulator, pronunciation amplifier circuit includes resistance R1 again, resistance R2, potentiometre RP1, electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, diode D1, diode D2 and audio power amplifier, gather pronunciation and generate the pronunciation signal of telecommunication through the microphone, through the pronunciation amplifier circuit amplified pronunciation signal of telecommunication, the pronunciation signal of telecommunication after amplifying is deciphered through the audio signal modulator, convert the alternation signal of telecommunication and give the main control unit to handle. Consequently the utility model discloses a pronunciation trick lock is through improving pronunciation acquisition unit for have stronger speech recognition performance, improved password disguise.
Description
Technical Field
The embodiment of the utility model relates to a trick lock particularly, relates to a pronunciation trick lock.
Background
Along with the promotion of the electric revolution and the internet revolution, the lockset is also advanced with the time, the electronic coded lock is produced, the electronic coded lock is a novel lockset formed by combining an electronic control circuit and an electromagnetic actuating mechanism, the unlocking mode is various, the confidentiality is strong, specific objects such as cards or plugs can be used as keys, the keys can also be omitted, and the electromagnetic actuating mechanism is controlled to unlock the lock by simultaneously or sequentially pressing a button or a toggle switch according to a group of passwords. The electronic coded lock has an anti-theft alarm function, overcomes the defects of small code amount and poor safety performance of a mechanical coded lock, and greatly improves the technology and the performance, so that the electronic coded lock gradually replaces the traditional mechanical coded lock.
The electronic cipher lock system consists of mainly electronic lock body, electronic cipher key and other parts, and the electronic cipher key can store several unlocking ciphers for the user to modify and update or to prepare new unlocking cipher key.
At present, voice application is very wide, and some people also design the voice coded lock by combining voice and coded lock, but the voice recognition capability of most voice coded locks at present is poor, and the voice coded lock can be recognized only by repeated broadcasting, so that the password concealment is reduced, and the voice recognition capability needs to be improved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a pronunciation trick lock that discernment performance is stronger.
In order to realize the purpose of the utility model, the utility model adopts the following technical scheme: a voice coded lock comprises a lock cylinder motor, a voice acquisition unit, a storage unit, a main control unit and a lock cylinder driving unit, wherein the voice acquisition unit comprises a microphone, a voice amplification circuit and an audio signal modulator, the voice amplification circuit comprises a resistor R1, a resistor R2, a potentiometer RP1, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a diode D1, a diode D2 and an audio power amplifier, an RC filter circuit is formed by the resistor R1 and the capacitor C1 and is connected to the output end of the microphone, the output end of the microphone sends a signal into the audio power amplifier after passing through a series circuit of the potentiometer RP1 and the capacitor C2, a gain setting end of the audio power amplifier is connected with the capacitor C3, the output end of the audio power amplifier sends the signal to the audio signal modulator after passing through a series circuit of the capacitor C4 and the resistor R2, the audio signal modulator modulates the signal and then sends the signal to the main, the diode D1 and the diode D2 are connected in parallel in an inverse manner to form a limiting circuit and are connected to the output end of the audio power amplifier; the storage unit is connected with the main control unit and used for storing the unlocking password; the master control unit is used for receiving the audio signal sent by the voice acquisition unit, comparing the received audio signal with unlocking password data in the storage unit and sending a control signal to the lock cylinder driving unit; the lock cylinder driving unit is connected with the main control unit and used for receiving the control signal sent by the main control unit and controlling the lock cylinder motor to rotate.
Furthermore, the utility model discloses still provide following subsidiary technical scheme:
The audio power amplifier adopts an LM386 type audio integrated power amplifier.
The audio signal modulator uses a general phase-locked loop circuit tone decoder of the type LM 567.
the memory unit comprises an AT24C04 type memory.
The main control unit comprises an AT89C52 type single chip microcomputer.
the lock cylinder driving unit comprises a first optical coupler, a first switch tube and a relay, a light emitter of the first optical coupler is connected with the main control unit, a light receiver is connected with a base electrode of the first switch tube, a collector electrode of the first switch tube is connected with a power supply, an emitter electrode of the first switch tube is connected with a coil of the relay, and a normally open contact of the relay is connected with the lock cylinder motor.
The voice coded lock further comprises a key unit, wherein the key unit is connected with the main control unit and used for inputting a key password to the main control unit and modifying an unlocking password in the storage unit.
The key unit is a matrix type keyboard and is provided with 15 button switches, wherein 10 buttons are respectively used for inputting 0 to 9 numbers, and the remaining 5 button switches are respectively used for confirming, canceling, opening voice, closing voice and modifying unlocking passwords.
The voice coded lock further comprises an alarm unit, the alarm unit comprises a second optical coupler, a second switch tube and a buzzer, a light emitter of the first optical coupler is connected with the main control unit, a light receiver is coupled with a base electrode of the second switch tube, a collector electrode of the second switch tube is connected with a power supply, and an emitter electrode of the second switch tube is connected with the buzzer.
Compared with the prior art, the utility model discloses a pronunciation trick lock's advantage lies in: it includes the pronunciation acquisition unit, a storage unit, main control unit and lock core drive unit, pronunciation acquisition unit wherein includes the microphone, pronunciation amplifier circuit and audio signal modulator, pronunciation amplifier circuit includes resistance R1 again, resistance R2, potentiometre RP1, electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, diode D1, diode D2 and audio power amplifier, gather pronunciation through the microphone and generate the pronunciation signal of telecommunication, amplify the pronunciation signal of telecommunication through pronunciation amplifier circuit, decode the pronunciation signal of telecommunication after amplifying through the audio signal modulator, convert the alternating signal of telecommunication and give the main control unit to handle. Consequently the utility model discloses a pronunciation trick lock is through improving pronunciation acquisition unit for have stronger speech recognition performance, improved password disguise.
Drawings
In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the drawings that are needed in the description of the embodiments or related technologies will be briefly introduced below, and it is obvious that the drawings in the following description only relate to some embodiments of the present invention and are not limiting to the present invention.
Fig. 1 is a circuit diagram of a voice combination lock according to a preferred embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the following detailed description of the present invention, taken in conjunction with the accompanying drawings and the detailed description, is given in a non-limiting manner.
Referring to fig. 1, the voice combination lock of the present embodiment includes: the device comprises a voice acquisition unit, a storage unit, a main control unit, a lock cylinder driving unit, a key unit and an alarm unit.
The voice acquisition unit comprises a microphone MK1, a voice amplification circuit and an audio signal modulator U2.
Microphone MK1 is used to collect speech and generate audio signals.
The voice amplifying circuit comprises a resistor R1, a resistor R2, a potentiometer RP1, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a diode D1, a diode D2 and an audio power amplifier U1, wherein the audio power amplifier U1 adopts an LM386 type audio integrated power amplifier. The resistor R1 and the capacitor C1 form an RC filter circuit and are connected to the output end of the microphone MK1, the output end of the microphone MK1 sends an audio signal to the input end (pin 3) of the audio power amplifier U1 after passing through a series circuit of the potentiometer RP1 and the capacitor C2, the capacitor C3 is connected between the gain setting ends (pin 1 and pin 8) of the audio power amplifier U1, the output end (pin 5) of the audio power amplifier U1 sends the amplified audio signal to the audio signal modulator U2 after passing through a series circuit of the capacitor C4 and the resistor R2, and the output end of the audio power amplifier U1 is grounded through a limiting circuit formed by reversely connecting the diode D1 and the diode D2 in parallel after passing through a series circuit of the capacitor C4 and the resistor R2. The RC filter circuit formed by the resistor R1 and the capacitor C1 is used for filtering noise waves of an output signal of the microphone MK1, the potentiometer RP1 is used for adjusting input volume, namely signal voltage, the capacitor C2 is an output coupling capacitor of the microphone MK1, the capacitor C3 is used for improving a gain value of the U1, the capacitor C4 and the resistor R2 are CR compensation networks used for correcting phase shift, high-frequency self-excitation is restrained, the U1 circuit is protected, and an amplitude limiting circuit formed by the diode D1 and the diode D2 is used for acting in advance of the protection circuit when output overload is carried out, instant overload signals are cut off, and the phenomenon of sound interruption is avoided.
the audio signal modulator U2 adopts LM567 type general phase-locked loop circuit tone decoder, the audio signal amplified by the voice amplifying circuit enters U2 and is modulated and decoded into alternating voltage signal, and then the alternating voltage signal is sent to the main control unit for processing.
The storage unit U3 comprises an AT24C04 type memory, is connected with the main control unit and is used for storing an unlocking password, and the unlocking password is one or a combination of numbers, Chinese characters and letters.
The main control unit U4 comprises an AT89C52 type single chip microcomputer, and is used for receiving the decoded audio signal sent by the voice acquisition unit, comparing the received audio signal with unlocking password data in the storage unit, sending a control signal to the lock cylinder driving unit, and sending an alarm triggering signal to the alarm unit.
The key cylinder driving unit comprises a first optical coupler J1, a first switch tube Q1 and a relay K1. The second optocoupler is connected with the main control unit. The light emitter of the first optical coupler J1 is connected with the control signal output port (P0.2 port) of the main control unit U4, one end of the light receiver is connected with the power supply, the other end of the light receiver is connected with the base electrode of the first switch tube Q1, and the collector electrode of the first switch tube Q1 is connected with the power supply and the emitter electrode is connected with the coil of the relay K1. The normally open contact of relay K1 is connected with the electron lock core, and in case main control unit U4 sends control signal to first opto-coupler J1, the illuminator is luminous, and the photic ware switches on, and first switch tube Q1 switches on, and relay K1 coil gets electricity, and normally open contact is closed, and the electron lock core gets the electricity and opens the door.
The key unit is connected with the main control unit U4 and is used for inputting key passwords and modifying unlocking passwords in the storage unit to the main control unit, the key unit is a matrix type keyboard and is provided with 15 button switches, 10 buttons are used for inputting 0-9 numbers respectively, and the rest 5 button switches are used for confirming, canceling, starting voice, closing voice and modifying the unlocking passwords respectively.
The alarm unit comprises a second optocoupler J2, a second switching tube Q2 and a buzzer H1. A light emitter of the second optocoupler J2 is connected with a control signal output port (port P0.1) of the main control unit U4, one end of the light receiver is connected with a power supply, the other end of the light receiver is connected with a base electrode of a second switch tube Q2, a collector electrode of the second switch tube Q2 is connected with the power supply, and an emitter electrode of the second switch tube Q2 is connected with a buzzer H1. Once the main control unit U4 sends a control signal to the second optocoupler J2, the light emitter emits light, the light receiver is turned on, the second switch tube Q2 is turned on, and the buzzer H1 buzzes.
When the electronic lock core unlocking device works, a user inputs a voice password into the microphone MK1, the microphone MK1 collects voice and generates an audio signal, the audio signal is amplified by the voice amplification circuit and is sent into the main control unit U4 after being modulated and decoded by the audio signal modulator U2, the main control unit U4 extracts an unlocking password stored in the storage unit U3, the audio signal and the unlocking password are subjected to data comparison, if the comparison is successful, a control signal is sent to the lock core driving unit, the electronic lock core is driven by the lock core driving unit to unlock, if the comparison is unsuccessful, an alarm trigger signal is sent to the alarm unit, and an alarm is sent by the buzzer H1.
The user can also input a key password into the main control unit U4 through the key unit, similarly, the main control unit U4 extracts an unlocking password stored in the storage unit U3, compares the key password with the unlocking password, sends a control signal to the lock cylinder driving unit if the comparison is successful, drives the electronic lock cylinder to unlock through the lock cylinder driving unit, sends an alarm trigger signal to the alarm unit if the comparison is unsuccessful, and sends an alarm to sound through the buzzer H1. The user can also carry out the operations of opening voice, closing voice and modifying unlocking passwords through the key unit.
The voice coded lock of the utility model also has other common units known by the technical personnel in the field, such as a power supply unit for providing stable voltage and a display unit for displaying the code.
It should be noted that the above-mentioned preferred embodiments are only for illustrating the technical concepts and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention accordingly, and the protection scope of the present invention cannot be limited thereby. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (9)
1. The utility model provides a pronunciation trick lock, includes lock core motor, its characterized in that: comprises a voice acquisition unit, a storage unit, a main control unit and a lock cylinder driving unit, wherein,
The voice acquisition unit comprises a microphone, a voice amplification circuit and an audio signal modulator, the voice amplification circuit comprises a resistor R1, a resistor R2, a potentiometer RP1, a capacitor C1 and a capacitor C2, the microphone comprises a capacitor C3, a capacitor C4, a diode D1, a diode D2 and an audio power amplifier, wherein a resistor R1 and a capacitor C1 form an RC filter circuit and are connected to the output end of a microphone, the output end of the microphone sends a signal to the audio power amplifier after passing through a series circuit of a potentiometer RP1 and the capacitor C2, the gain setting end of the audio power amplifier is connected with the capacitor C3, the output end of the audio power amplifier sends the signal to an audio signal modulator after passing through the series circuit of the capacitor C4 and the resistor R2, the audio signal modulator modulates the signal and sends the signal to a main control unit, and a diode D1 and the diode D2 are reversely connected in parallel to form an amplitude limiting circuit and are connected to the output end of;
The storage unit is connected with the main control unit and used for storing the unlocking password;
The master control unit is used for receiving the audio signal sent by the voice acquisition unit, comparing the received audio signal with unlocking password data in the storage unit and sending a control signal to the lock cylinder driving unit;
the lock cylinder driving unit is connected with the main control unit and used for receiving the control signal sent by the main control unit and controlling the lock cylinder motor to rotate.
2. The voice combination lock of claim 1, wherein: the audio power amplifier adopts an LM386 type audio integrated power amplifier.
3. The voice combination lock of claim 1, wherein: the audio signal modulator adopts an LM567 type general phase-locked loop circuit tone decoder.
4. The voice combination lock of claim 1, wherein: the memory unit comprises an AT24C04 type memory.
5. The voice combination lock of claim 1, wherein: the main control unit comprises an AT89C52 type single chip microcomputer.
6. The voice combination lock of claim 1, wherein: the lock cylinder driving unit comprises a first optical coupler, a first switch tube and a relay, a light emitter of the first optical coupler is connected with the main control unit, a light receiver is connected with a base electrode of the first switch tube, a collector electrode of the first switch tube is connected with a power supply, an emitter electrode of the first switch tube is connected with a coil of the relay, and a normally open contact of the relay is connected with the lock cylinder motor.
7. The voice combination lock of claim 1, wherein: the key unit is connected with the main control unit and used for inputting a key password to the main control unit and modifying an unlocking password in the storage unit.
8. The voice combination lock of claim 7, wherein: the key unit is the matrix keyboard, has 15 button switches, and wherein 10 buttons are used for inputing 0 to 9 figures respectively, and remaining 5 button switches are used for confirming, canceling, opening pronunciation, closing pronunciation and modification password of unblanking respectively.
9. the voice combination lock of claim 1, wherein: the alarm unit comprises a second optical coupler, a second switch tube and a buzzer, wherein a light emitter of the first optical coupler is connected with the main control unit, a light receiver is coupled with a base electrode of the second switch tube, a collector electrode of the second switch tube is connected with a power supply, and an emitter electrode of the second switch tube is connected with the buzzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821931364.1U CN209799618U (en) | 2018-11-22 | 2018-11-22 | Voice coded lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821931364.1U CN209799618U (en) | 2018-11-22 | 2018-11-22 | Voice coded lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209799618U true CN209799618U (en) | 2019-12-17 |
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ID=68816664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821931364.1U Expired - Fee Related CN209799618U (en) | 2018-11-22 | 2018-11-22 | Voice coded lock |
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| Country | Link |
|---|---|
| CN (1) | CN209799618U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113707155A (en) * | 2020-05-22 | 2021-11-26 | 中山市富深家用制品有限公司 | Voice password modification method and device |
-
2018
- 2018-11-22 CN CN201821931364.1U patent/CN209799618U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113707155A (en) * | 2020-05-22 | 2021-11-26 | 中山市富深家用制品有限公司 | Voice password modification method and device |
| CN113707155B (en) * | 2020-05-22 | 2024-06-14 | 中山市富深家用制品有限公司 | Voice password modification method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191217 Termination date: 20201122 |