JPS584646A - Alarm device for automobile - Google Patents

Abstract

PURPOSE:To generate an alarm sound of good quality in good timing, by generating an alarm, formed with message voice and the alarm sound, from separate circuits and controlling not only selective classification but alarm generation timing through a common control circuit. CONSTITUTION:Signals of a switch group 1 and car speed sensor 2, input means, if becoming a logical state of generating message voice, can be identified by a control circuit 3 to give a command, contained with timing or the like, to a voice synthesizer circuit 4 and electronic alarm sound generator circuit 5, and output from a speaker 7 through an amplifier 6. For instance, a seat belt is forgotten to be fastened, if an engine is started, the control circuit 3 performs logical identification from a state of switches 1a, 1b, to command heading output of a melody sound for a short time firstly to the circuit 5. If the heading sound output is finished, a command is given secondly to the circuit 4 to output an alarm by voice.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a warning device for automobiles that issues a warning when a driver forgets to fasten his seat belt or speeds too much.

In recent years, with the development of electronics and the increase in demand for automobiles, various automobile warning devices using electronics have come on the market for the safety and convenience of automobile drivers and the like. One of them is a voice control device that makes use of voice synthesis technology such as the phoneme type or PARCOR method to utter a warning voice vowel or message voice. It was. Cases in which it is better to issue an alarm with an audible alarm rather than an audio one: For example, an electronic alarm is used for a warning while driving. There are also alarm devices that issue a warning sound, such as a sound, without sound. Furthermore, the above voice control device is used.

Before uttering this message voice, please tell the driver:
Some devices also emit an alarm sound (hereinafter referred to as cue sound) to call attention to the fact that a message voice is about to be uttered.

By the way, in the past, most of the cueing sounds mentioned above were simple sounds.
Normally, this was created by voice synthesis in the same way and on the same equipment as the message voice.

In addition to the above cueing sound, it is also possible to create a normal alarm sound by voice synthesis in the same manner as the message voice and using the same device.

However, the analysis and synthesis method represented by PARCO Machin.

In books that create these cue sounds and alarm sounds using synthesis technology such as the rule synthesis method represented by synthetic speech segment editing, the sound quality is poor, and it takes time to analyze sounds other than simple sound plates. The problem was that it took too much time.

Therefore, it is possible to use a recording/editing method represented by PCM, which can produce high-quality sound, but the equipment is very expensive and is not suitable for use in automobiles. Not practical.

This invention was made in view of the above circumstances,
To provide an inexpensive automobile warning device capable of emitting a high-quality warning sound with good timing.

The present invention will be described in detail below with reference to the drawings. Figure 0 is a block diagram showing an embodiment of an automobile alarm system according to the present invention, and 1 in the figure indicates a plurality of switches la, lb...
......A group of switches equipped with 1n.

2 is a vehicle speed sensor that generates a signal that increases or decreases depending on the vehicle speed; 3 is a signal from an input means; A control circuit that performs logical discrimination and generates an alarm command signal including two timing signals; 4 is a voice synthesis circuit that receives a predetermined alarm command signal from the control circuit 3 and outputs a voice message signal; 5 is a voice synthesis circuit that outputs a voice message signal from the control circuit 3; an electronic alarm sound generation circuit that receives a predetermined alarm command signal and outputs an electronic alarm sound (normal alarm sound or cue sound) signal; 6;
7 is an amplifier that amplifies the output signals of the voice synthesis circuit 4 and the electronic warning sound generation circuit 5, and 7 is a speaker that receives the amplified signal from the amplifier 6 and issues a warning to the driver.

Next, the operation of the above-mentioned device of the present invention will be explained.

First, switch group l and vehicle speed sensor 2, which are input means,
When the signal enters a logical state that causes a message voice to be uttered, the control circuit 3 identifies this and outputs an alarm command signal to the voice synthesis circuit 4 with message designation and utterance timing as command contents. Voice synthesis circuit 4 (-1) receives this alarm command signal and outputs a voice message signal according to the contents of the command. This signal is amplified by an amplifier 6 and sent to a speaker 7.
The message is output to the outside as a voice message. Further, when the signals from the switch group 1 and the vehicle speed sensor 2 reach a logical state that generates an alarm sound, the control circuit 3 identifies this and issues an alarm command to the electronic alarm sound generation circuit 5, which specifies the alarm sound generation timing, etc. Output a signal. The electronic alarm sound generation circuit 5 receives this alarm command signal and outputs an electronic alarm sound signal according to the contents of the command. This signal is amplified by an amplifier 6 and outputted from a speaker 7 to the outside as an alarm sound.

・The operation of the inventive device has been briefly described below.

The specific alarm operation will be described. Now switch 1a
is a belt switch that closes when the seat belt is not fastened, and switch 1b is an ignition key switch that is closed when the engine is started, and a one-car switch la is used.
, lb are both in the closed state. If you forget to fasten your seat belt and start the engine, the control circuit 3 logically identifies this condition and first starts the electronic alarm sound generation circuit 5.
To.

Outputs an alarm command signal to output a short-term warning sound (starting sound) for cueing. Therefore, the cue sound is output from the speaker 7. In this embodiment, an IC, generally called a melody IC, is used as a part of the electronic alarm sound generation circuit 5, which generates several types of sounds with very good quality using one element. The chime sound, which is its function, is assigned as the cue sound.

Now, when the output of this cue sound ends.

The control circuit 3 outputs an alarm command signal to the voice synthesis circuit 4 to cause the voice synthesis circuit 4 to output, for example, a message voice such as "fasten your seat belt" once following the cue sound. Therefore, from speaker 7.

Following the cue sound above, "Fasten your seat belt."
A message voice will be output.

Next, regarding the case where you accidentally drive too fast, in this case, the control circuit 3 identifies excessive speed by counting the pulses from the vehicle speed sensor 2,
An alarm command signal for causing the electronic alarm sound generation circuit 5 to output an alarm sound is output.

The electronic alarm sound generating circuit 5 receives this command signal, outputs an electronic alarm sound signal, and causes the speaker 7 to output an alarm sound.

In this embodiment, this alarm sound is an electronic jib sound, which is a function of the melody IC.

In the above embodiment, the switch group 1 and the vehicle speed sensor 2 are used as input means to the control circuit 3, but the invention is not limited to this, and other input circuits, sensors, etc. may be used. Of course, it is possible.

Further, the alarm sound generation circuit is not limited to the electronic alarm sound generation circuit 5 described above; for example, it is also possible to use a normal pud circuit or oscillation circuit, and in particular, when an electromagnetic buzzer is used, There is no need to use the amplifier 6 and the speaker 7 to output the alarm sound.

As described above, according to the present invention, the voice synthesis circuit that outputs the voice message signal and the alarm sound generation circuit that outputs the alarm sound signal are provided, and the message sound alarm and the alarm sound alarm are generated in separate circuits. At the same time, both of these circuits are controlled by one common control circuit, and this control circuit not only selects the type of alarm mentioned above, but also controls the timing of the alarm generation. This has the effect of providing an inexpensive automobile alarm device that can emit a warning sound and cue sound in a timely manner.

[Brief explanation of the drawing]

The figure is a block diagram showing an embodiment of the automobile alarm device according to the present invention. DESCRIPTION OF SYMBOLS 1... Switch group, 2... Vehicle speed sensor, 3... Control circuit, 4... Voice synthesis circuit, 5... Electronic alarm sound generation circuit. 6...Amplification circuit, 7...Speaker. Agent Makoto Kuzuno - Commissioner of the Japan Patent Office l, Indication of the case: Patent Application No. 12 N$-104 (No. 12 No. 2, Title of invention: Automobile warning device 3, Relationship with the person making the amendment case: Patent Dewajin 11) 2-2-3 Marunouchi, Chiyoda-ku, Tokyo Name (601) Mitsubishi Electric Co., Ltd. Representative Katayuni 8be 4, Agent Address 2-2-3-5 Marunouchi, Seventh Ward, Tokyo Details subject to amendment Column 6 of “Detailed Description of the Invention” of the amendment, page 3, line 9 of the description of the amendment “Corrected as “Speech Synthesis Technology Jkr Speech Synthesis Technique”

Claims (1)

[Scope of Claims] A control circuit that logically identifies a signal from an il+ input means and outputs an alarm command signal whose command contents include whether the alarm is to be issued by a message voice or an alarm sound, and the timing of generation of the alarm; a voice synthesis circuit that receives a predetermined alarm command signal from the control circuit and outputs a voice message signal;
The alarm sound generating circuit receives a predetermined alarm command signal from the control circuit and outputs an alarm sound signal, and includes an output means for outputting the audio message signal and alarm sound signal to the outside as a message sound and an alarm sound. An automobile alarm device characterized by: (2) The control circuit is configured to control the alarm sound generating circuit so that when the alarm is a message sound, the alarm sound is output for a short time immediately before the message sound. car alarm system.