JPH0665538B2 - Electronic key equipment for automobiles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention unlocks a vehicle door (UNLOCK).
In addition, the present invention relates to an electronic key device for an automobile in which an engine starting circuit can be activated by a voice signal.

(Prior Art) Conventionally, when unlocking a door of an automobile and starting an engine, a driver shares one key to carry. However, according to this, it is necessary to insert the key into the keyhole each time, which is troublesome, and it is not easy to handle in a dark place.

Therefore, an electronic key device has been proposed in which the door can be unlocked and the engine can be started by a voice signal. This device recognizes a word or a personal identification number spoken by the driver by the voice recognition means, and unlocks the door when the word or the personal identification number matches a predetermined word or personal identification number.
It is also configured to activate the starting circuit of the engine.

(Problems to be Solved by the Invention) However, in such a conventional technique, even if the voice of the owner of the vehicle changes its tone, the voice recognition means cannot perform accurate voice recognition. On the other hand, if another person correctly pronounces a predetermined word or secret code, it correctly recognizes it and without permission of the car owner,
I was able to drive the car, which was a problem for theft prevention.

The present invention has been made in view of such problems, and an object thereof is to improve the anti-theft property and to keep the engine start circuit in an operating state even if the tone of the voice of the vehicle owner changes. It is to realize an electronic key device for an automobile that can be realized.

(Means for Solving Problems) The present invention which solves the problems described above, transmitting means for transmitting key code data corresponding to the uttered first personal identification number or word and data related to a voiceprint, A first judging means for judging whether or not the key code data sent from the transmitting means matches the key code data corresponding to the preset first secret code or word, and the first judging means judges that they match. In the case where the driving means for unlocking the door and the first judging means determine that they coincide with each other, it is then judged whether the data related to the voiceprint coincides with the preset data related to the voiceprint. The data corresponding to the second personal identification number or word uttered when it is determined that they do not match the second personal identification number or word is the preset second personal identification number or word. The third determination means for determining whether or not they match each other, and when the third determination means determines that they match, or when the second determination means determines that they match, the engine start circuit is made operable. And means.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a configuration block diagram showing an example of an apparatus according to the present invention, and FIG. 2 is a conceptual diagram showing an application example of the present invention.

In these figures, 1 is a transmitter (remote control key), and 2 is a receiver. The transmitter 1 is used while being carried,
The receiver 2 is installed near the outer handle 5 of the driver's door 4 of the automobile 3 as shown in FIG.

In the transmitter 1, 6 is a microcomputer, 7 is a voice signal from a microphone 70, and voice analysis is performed to generate key code data corresponding to a uttered personal identification number or a word, and a voice print is analyzed, and the voice print is analyzed. Voice analysis means for producing the data related to the above, and giving this to the microcomputer 6, 8 is a transmission amplifier controlled by the microcomputer 6, 9 is driven by the transmission amplifier 8, and key code data and data regarding voiceprint are placed. For example, a light emitting element that emits an optical signal.

In the receiver 2, 10 is a light emitting element that receives the optical signal transmitted from the transmitter 1, 11 is a receiving amplifier that amplifies the signal from this light receiving element, 12 is a microcomputer that inputs the signal from the receiving amplifier 11, Reference numeral 13 is a key code array memory which gives key code data corresponding to a first personal identification number or a word registered in advance in the microcomputer 12 and data relating to a voiceprint, and key code data corresponding to a second personal identification number or a word to be described later, 14 Is a microphone provided in the automobile, and 15 is a voice analysis means for analyzing a voice signal from the microphone 14 and producing key code data corresponding to the uttered personal identification number or word. Reference numeral 16 is a power relay unit for inputting a control signal from the microcomputer 12, and 17 is an unlocking actuator for the door driven by the signal from the power relay unit 14, which unlocks the door. Reference numeral 18 denotes an engine operating circuit for operating an engine starting circuit, which is connected to the microcomputer 12 via the power relay unit 16.

FIG. 3 is a functional block diagram of the receiver 2. In the figure, 121 indicates that the key code data received by the receiving amplifier 11 (key code data transmitted from the transmitter 1) is
Numeral 122 is a first judging means for judging whether or not the key code data corresponding to the first personal identification number or the word set in the key code array memory 13 in advance matches. When judged, it is a second judgment means for judging whether or not the data related to the voiceprint received by the reception amplifier 11 matches the data related to the voiceprint set in the key code array memory 13 in advance.
If the second judging means 122 judges that they do not match, the data 123 corresponding to the second personal identification number or the word input through the voice analyzing means 15 is set in the key code array memory 13 in advance. It is a third judging means for judging whether or not the data corresponds to the second personal identification number or the word. Each of these judging means is realized by a program of the microcomputer 12.

The operation of the apparatus configured as described above will be described below with reference to the flowchart shown in FIG.
First, a person trying to drive a car speaks a first personal identification number or word to the microphone 70 of the transmitter 1 (step 1). The voice analysis means 7 in the transmitter 1 is
The uttered voice is analyzed, key code data corresponding to a personal identification number or a word and data regarding a voiceprint are created, and the microcomputer 6 transmits these data as a pulse train signal to the receiver 2 side. The receiver 2 receives the transmitted data, and first, whether the data corresponding to the personal identification number matches the key code data corresponding to the first personal identification number or the word read from the key code array memory 13. It is judged by the first judging means 121 (step 2). If it is determined that they match, the unlock actuator 17 is driven to unlock the door 4 (step 3). Then, the second
The determination means 122 determines whether the transmitted voiceprint data matches the voiceprint data stored or set in the key code array memory 13 in advance (step 4). If it is determined that they match with each other, the process proceeds to step 5 and the engine operating circuit 18 is operated so that the engine can be started. If it is determined in step 4 that they do not match, the engine operating circuit 1
No. 8 does not operate (step 6). In this state, the driver speaks the second personal identification number or word toward the microphone 14 provided inside the vehicle (step 7). In the third judging means 123, the data applied via the voice analyzing means 15 is the key code array memory 13
It is judged whether or not it matches with the data of the second personal identification number or the word read from (step 8).
Go to step 5.

By the above operation, when the first personal identification number or word is first described and the personal identification number and the voiceprint match, the door can be unlocked and the engine can be operated. Even if the first personal identification number or the word matches, the engine cannot be started if the voice patterns do not match, for example, the tone of the voice changes. On the other hand, even in this case,
By saying the second personal identification number or word, if the personal identification number or word matches, the engine can be started.

In the above embodiment, the case where the data corresponding to the first and second personal identification numbers or words and the data relating to the voiceprint are both stored in the key code array memory shown in one block has been described. Each data may be stored in a separate memory means. The engine operating circuit is a circuit for turning on the electric circuit from the battery, and the engine starter is provided with another switch means.

(Effects of the Invention) As described above, the present invention determines whether or not a voiceprint matches in addition to the matching or non-matching of a personal identification number or words, and even if the voiceprint does not match, the second personal identification number. Alternatively, if the words match, the engine can be operated. Therefore, according to the present invention, it is possible to realize an electronic key device for an automobile, which has a high anti-theft property and which can start the engine even if the tone of the person's voice changes.

[Brief description of drawings]

FIG. 1 is a configuration block diagram showing an embodiment of the present invention, and FIG.
FIG. 3 is a conceptual diagram showing an application example of the present invention, FIG. 3 is a functional block diagram of a main part of the receiver 2, and FIG. 4 is a flowchart showing an example of operation. 1 ... Transmitter, 2 ... Receiver 6,12 ... Microcomputer 7,15 ... Voice analysis means 13 ... Key code array memory 14,70 ... Microphone 17 ... Unlock actuator 18 ... Engine operation Circuit 121 ... First judging means 122 ... Second judging means 123 ... Third judging means

Claims (1)

[Claims] 1. Transmitting means for transmitting key code data corresponding to a first secret code or word spoken and data associated with a voiceprint, and the key code data sent from the transmitting means is preset in advance. First judging means for judging whether or not it matches the key code data corresponding to the personal identification number or the word; driving means for unlocking the door when the first judging means judges that the key code data corresponds to the key code data; If it is determined that the voiceprint-related data is the same, the second determination means for determining whether the data related to the voiceprint matches the preset data related to the voiceprint, and the second determination means are determined not to match. In the case of a voice, the third judgment means for judging whether or not the data corresponding to the uttered second personal identification number or word matches the preset second personal identification number or word, and the third judgment means. If it is determined that a matching means,
Alternatively, an electronic key device for a motor vehicle, comprising means for enabling the starting circuit of the engine when the second determining means determines that they match.