JPH083624Y2 - Voice lock - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a voice lock, and in particular, the voice of the person who is trying to unlock the lock is registered and the electric lock is opened when there is a voice input that matches the registered voice. The present invention relates to a voice lock to be locked.

[0002]

2. Description of the Related Art In order to control access to important areas such as general households, laboratories, and computer rooms, the opening and closing of room doors is controlled by identifying the voice of a person (authorized person) who is authorized A voice lock is installed.

In such a conventional voice lock, generally, voice identification information such as a voiceprint pattern or a cepstrum of a speaker is stored in advance in the voice identification device side, and the authorized person actually outputs a voice to the identification device. By inputting, this input voice is compared with the stored voice identification information, and if they match, it is configured to identify a valid permitter and permit entry and exit.

[0004]

In such a conventional voice lock, when the user has a cold or drinks, for example, the voice becomes different from the voice in normal times. , Even if it is the voice of the registered authorized person,
There is a drawback that the voice identification device does not operate and the voice lock cannot be unlocked.

Therefore, in view of the above-mentioned conventional problems, the present invention requires that the authorized person is input by voice so that the authorized person does not become unable to unlock even if the authorized person has a different voice. The purpose of the invention is to provide a voice lock that can identify the.

[0006]

In order to achieve the above object, a speaker identification device according to the present invention registers voices of a plurality of persons who are going to unlock as digital data, and registers the voices. In a voice lock equipped with an identification device that generates an unlocking signal for unlocking an electric lock when a voice input corresponding to the voice input is made, a voice registration memory in which the voice of the person trying to unlock is stored as digital data A switch for reading the digital data stored in the memory, a D / A converter for converting the digital data read from the memory into an analog signal, and a voice driven by the analog signal from the D / A converter. A speaker that emits sound, and a key device carried and carried by the person who is trying to unlock, and the identification device is a voice of a plurality of people who are trying to unlock. A memory storing as digital data, a microphone for inputting a voice, A to convert the voice input from the microphone into a digital signal /
It has a D converter and a comparing means for sequentially comparing the digital signal from the A / D converter with the digital data of the voices of a plurality of persons stored in the memory, and the digital signal of the voice inputted by the comparing means. It is characterized by generating an unlocking signal for unlocking the electric lock when there is digital data matching with.

[0007]

In the above structure, the person who is trying to unlock has a voice registration memory in which his or her voice is stored as digital data, and the digital data stored in this voice registration memory is read by a switch operation, Since the key device for emitting the own voice from the speaker is carried by the analog signal converted by the A / D converter, the voice of the person trying to unlock is stored in the memory of the identification device. Even if the voice is different from the voice that is present, the electric lock can be reliably unlocked by causing the key device to emit its own voice instead.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a configuration of a key device 5 which constitutes a part of a voice lock according to the present invention. In FIG. 1, a voice registration memory 6 relates to a voice of a predetermined authorized person who is allowed to unlock. Audio information is stored as digital data. This digital data is read by the controller 7 including a microcomputer,
The data is input to the D / A converter 8. The signal converted into the analog signal by the D / A converter 8 is supplied to the amplifier 9 and the speaker 10 is driven to output the voice of the predetermined authorized person stored in the memory 6. The data read control of the controller 7 is performed by the switch 11. Further, the key device 5 is formed in, for example, a card or a disc shape so that the key device 5 can be carried and easily carried by the authorized person.

To store voice data in the voice registration memory 6 of the key device 5, as shown in FIG. 2, first, the voice of the predetermined permitter is converted into an electric signal by the microphone 1 and then by the amplifier 2. This is amplified and input to the A / D converter 8 to be converted into a digital signal. Next, this digital signal is converted into a PCM signal by the PCM converter 4 and stored in the memory 6 of the key device 5.

When the key device 5 has a card shape, as shown in FIG. 3, the controller 7 is operated by turning on the switch 11 to read the voice data registered in advance in the memory 6, and the D / A converter 8 is used. The audio signal converted into the analog signal is amplified by the amplifier 9 and output as sound from the speaker 10. This voice is identified by the identification device 1
2 receives and performs identification by comparing with voice data of a predetermined authorized person registered in advance in the identification device 12, and if both are in agreement, for example, an electric lock 13 provided on a door is opened. Output as a lock signal.

That is, the identification device 13 is configured as shown in FIG. 4, and an identification signal such as a voice signal output from the key device 5 is picked up by the microphone 14 and converted into an electric signal. This electric signal is converted into a digital signal by the A / D converter 15 and input to the comparator 16. Further, identification signals such as voice information concerning a plurality of talkers registered in advance in the memory 17 are sequentially input to the comparator 16 by the controller 20. In the comparator 16, the identification signal of the key device 5, which is the output of the A / D converter 15, and the identification signals of the plurality of registrants stored in the memory 17 are sequentially compared, and even one of them matches. If there is one, the output signal is sent out. An output signal from the comparator 16 is amplified by an amplifier 18, and a drive circuit 19 is driven to send a lock signal to activate the electric lock 13 to open the door.

[0012]

As described above, according to the present invention, since the voice of the permitter can be registered in the key device such as a card or a disk, the same identification signal as that of the permitter can be supplied to the identifier. As a result, the effect that the unlocking can be surely performed even when the authorized person makes a voice different from that in the normal time.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a voice lock including an identification device and a key device according to the present invention.

FIG. 2 is a diagram showing a usage example of an identification device when the key device of FIG. 1 is used.

FIG. 3 is a block diagram showing an embodiment of an apparatus for storing voice information of a permitter in a voice recognition memory in the key device of FIG.

FIG. 4 is a block diagram showing a specific configuration of an identification device.

[Brief description of reference numerals]

 3,15 A / D converter 5 Key device 6,17 Voice registration memory 7,20 Controller 8 D / A converter 10 Speaker 12 Identification device 13 Electric lock 14 Microphone 16 Comparator 19 Driving circuit

Claims (1)

[Scope of utility model registration request] 1. An identification for generating an unlocking signal for unlocking an electric lock when voices of a plurality of persons trying to unlock are registered as digital data and a voice input matching the registered voices is received. In a voice lock equipped with a device, a voice registration memory in which the voice of the person trying to unlock is stored as digital data, a switch for reading the digital data stored in the memory, and a digital readout from the memory. A key device that has a D / A converter that converts data into an analog signal and a speaker that is driven by an analog signal from the D / A converter and emits a sound, and is carried by the person who is trying to unlock A memory for storing the voices of a plurality of persons trying to unlock as digital data, and a microphone for inputting voices, An A / D converter for converting the voice input from the microphone into a digital signal, the A /
The digital signal from the D converter has a comparing means for sequentially comparing with the digital data of the voices of a plurality of persons stored in the memory, and there is digital data that matches the digital signal of the voice inputted by the comparing means. A voice lock characterized by generating an unlocking signal for unlocking the electric lock at the time.