JPH0744189A - On-vehicle speed recognition device - Google Patents

Abstract

PURPOSE:To improve the security against the loss and robbery of a door key and facilitate the opening operation of a door by the speech recognition device mounted on a vehicle. CONSTITUTION:The on-vehicle speech recognition device which is mounted on the vehicle and recognizes the voice of a user is provided with an unlocking actuator 7 which unlocks at least a door lock, a fuel lid lock, a trunk lock, and a speech recognition part 5 which judges whether or not an input speech matches the unlocking instructions of the user of the vehicle for the door, fuel lid, and trunk by registering the unlocking instructions and drives the unlocking actuator 7 only when the speech matches one of them.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a voice recognition device mounted on a vehicle, and more particularly, to a voice recognition device of the present invention, which relates to improvement of security due to loss or theft of a door key, and easiness of door opening operation.

[0002]

2. Description of the Related Art Conventionally, as a technology in such a field, there has been one which recognizes the utterance of a message of a driver and operates a car audio, a mirror and the like.

[0003]

By the way, the key of the door, engine, etc. cannot identify the person holding the key. For example, if the key is lost or stolen, the security of the key becomes ineffective. There was a problem. Further, when carrying luggage in both hands, there is a problem in that it is necessary to operate after placing a piece of luggage, for example, which is complicated. When operating with a wireless key, it can be operated from a position away from the car, but when carrying luggage in both hands, there was a problem similar to the above.

Therefore, in view of the above problems, it is an object of the present invention to provide a vehicle-mounted voice recognition device which can improve security and facilitate operation by using the voice recognition device.

[0005]

In order to solve the above problems, the present invention provides a vehicle-mounted voice recognition device for recognizing the voice of an occupant mounted on a vehicle with an unlock actuator and a voice recognition unit. The unlocking actuator is designed to unlock at least the door lock, the filler cap and the trunk lock.

The voice recognition unit registers at least door lock, refueling lid lock, and trunk lock release commands of the vehicle user, and if a voice is input while the vehicle is stopped, this voice matches the lock release command. The lock release actuator is driven only when they match.

[0007]

According to the vehicle-mounted voice recognition apparatus of the present invention, at least the door lock, the fuel filler lid lock, and the trunk lock release command of the vehicle user are registered, and when the vehicle is stopped, the voice is input. It is judged whether it matches the unlock command, and only if it matches, at least the door lock,
When the filler lid lock and trunk lock are released, the operator can identify the operator because it is compared with the registered voice, and the door key etc. is not required.The security is improved due to the loss or theft of the door key, etc. Even when carrying luggage, there is no need to operate it by hand, the unlocking operation becomes easy, and convenience is improved.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a schematic configuration of a vehicle-mounted voice recognition device according to an embodiment of the present invention, which unlocks a door lock and the like. The in-vehicle voice recognition device shown in this figure is provided with a microphone 1 installed at a position where an external voice can be captured in a vehicle, an amplifier 2 for amplifying an electric output signal of the microphone 1, and an analog output of the amplifier 2. A / D converter 3 (Analog to
Digital Converter), a dictionary unit 4 including a non-volatile memory (ROM (Read Only Memory)) for storing a parameter indicating a voice feature from a voice of a door lock release command, and A / D based on the dictionary unit 4. A voice recognition unit 5 that distinguishes a user of the vehicle from a person other than the user based on the recognition of voice data of the D converter 3, and a microcomputer for driving and controlling an actuator described later based on the voice recognition result of the voice recognition unit 5. And a lock release actuator 7 controlled by the control unit 6. Further, a switch 8 is provided between the A / D converter 3 and the dictionary unit 4 and the voice recognition unit 5, which is used when registering a cancellation command of a person who uses the vehicle. The unlock actuator 7 locks the door so that it does not open when the door is closed, and the door lock unlock actuator 71A that unlocks the door lock portion 71B and the trunk lock portion 72B that locks the door so that it does not open when the trunk is closed.
The tank lock release actuator 72A for releasing the lock of the oil supply port and the oil supply port lid lock release actuator 73A for unlocking the fuel port cover lock portion 73B that locks the fuel supply port so as not to open when closed. The voice recognition unit 5 is, for example, a DSP (Digital Signal).
The technology for confirming an individual based on the personal information contained in the voice signal is called speaker verification. In this matching technique, a parameter indicating the characteristics of a person's voice is registered, and this is subjected to pattern matching with the voice parameter of the person to be matched, and the user himself / herself is determined based on the degree of similarity.

FIG. 2 is a flow chart for explaining registration of an unlock command in the dictionary unit 4 of FIG. To enable the following processing so as not to cause inconvenience even if a person using the vehicle is added. In step S1 of the figure, the switch 8 is switched to connect the output of the A / D converter 3 to the dictionary unit 4 to enter the registration mode. In step S2, when the user utters "door" toward the microphone 1, the dictionary unit 4 digitizes this voice and registers it as a door unlock command.

Similarly, in step S3, the dictionary unit 4
When the user utters "trunk" into the microphone 1, the voice is digitized and registered as a trunk lock release command. In step S4, similarly, when the user utters "refueling mouth" toward the microphone 1, this dictionary is digitized and registered as a fueling mouth unlock command.

In step S5, if there is another additional command, it is registered in the same manner as above. If the above determination is "NO" in step S6, the switch 8 is switched to connect to the voice recognition unit 5 to enter the voice recognition mode. In addition, in order to perform the above registration accurately, the order of registration may be determined in advance and manualized or guidance for registration may be provided.

FIG. 3 is a flow chart for explaining the operation control of the actuator by the control unit 6 of FIG. In step S shown in this figure, the control unit 6 determines whether the vehicle speed is zero. For this purpose, the control unit 6 inputs a signal from the vehicle speed sensor. This step is for avoiding the lock release of the present invention performed while the vehicle is stopped and operating during traveling.

In step S11, the above judgment is "Y
If "ES", then it is determined whether or not there is voice in the microphone 1. It is determined whether the output signal of the microphone 1 is above a predetermined level. If the above determination is "YES" in step S12, the voice recognition unit 5 is activated to execute the voice recognition process.

In step S13, it is determined whether the voice recognition result matches the registered door unlock command "door". If this determination is "NO", the process proceeds to step S15. In step S14, the above determination is "YES"
Then, the door lock release actuator 71A is driven.

In step S15, it is determined whether the voice recognition result matches the registered trunk lock release command "trunk". If this determination is "NO", the process proceeds to step S17. If the above determination is "YES" in step S16, the trunk lock release actuator 72
Drive A.

In step S17, it is determined whether the voice recognition result matches the registered fuel filler lock release command "fuel filler". If this determination is “NO”, the process proceeds to step S end. In step S18, the above determination is "YE
If “S”, the fuel filler port lock release actuator 73A is driven. If none of the patterns is matched in the above matching judgment and the judgment is "NO", the unlocking actuator 7 is not driven because the user is not the person himself / herself.

From the above description, it is clear that the door lock, the trunk lock, the fuel filler, etc. can be unlocked from the outside of the vehicle, but the trunk, the fuel filler, etc. can also be unlocked from the inside of the vehicle. Since this is done, the keys for the door lock, the ran lock, and the filler neck lock are unnecessary, but they may be provided as they are. This is because, in this case, it is effective in terms of operability except for security.

[0018]

As described above, according to the present invention, at least the door unlocking command for the door, the fuel filler lid and the trunk of the vehicle user is registered, and if there is a voice input while the vehicle is stopped, this voice is locked. It is judged whether it agrees with the release command, and only if it coincides, at least the door lock, refueling lid lock, and trunk lock are released, so the door key is not required, and security is improved due to loss or theft of the door key. Even if you have luggage, you can unlock the door and operate it easily.

[Brief description of drawings]

FIG. 1 is a diagram showing a schematic configuration of a vehicle-mounted voice recognition device according to an embodiment of the present invention, which unlocks a door lock and the like.

FIG. 2 is a flowchart illustrating registration of an unlock command in a dictionary unit 4 in FIG.

FIG. 3 is a flowchart illustrating an actuator operation control by a control unit 6 in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Microphone 2 ... Amplifier 3 ... A / D converter 4 ... Dictionary part 5 ... Voice recognition part 6 ... Control part 7 ... Unlocking actuator

 ─────────────────────────────────────────────────── ─── Continued front page (72) Ikue Takahashi 1-22 Goshodori, Hyogo-ku, Kobe, Hyogo Prefecture Fujitsu Ten Limited

Claims (1)

[Claims] 1. A vehicle-mounted voice recognition device which is mounted on a vehicle for recognizing a voice of an occupant, comprising at least a door lock, a filler cap lock, a lock release actuator (7) for releasing a trunk lock, and a vehicle user's voice lock device. At least the door lock, refueling lid lock, and trunk lock release command are registered.If there is a voice input while the vehicle is stopped, it is judged whether this voice matches the lock release command. An in-vehicle voice recognition device, comprising: a voice recognition unit (5) for driving an actuator (7).