JP3076090B2 - Automotive alarm device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates in order to ensure the safety of vehicle traveling on the general road, relates automobile alarm system to be mounted on vehicles.

[0002]

At present, if you want to drive a car, a large number of and road signs regulations or instructions regarding traffic is displayed, road
Signaled by the brake lights and turn signal indicating a change in operation state of the other vehicle running on (running state) (right turn, left turn, diversion, crawling, stop, retreat, etc.) so as to operate while recognizing visually the Stipulated.

[0003]

However, automobiles
While driving, many and many kinds of road signs installed along the road
It is difficult to recognize the contents of the signal of the preceding vehicle while recognizing all of the knowledge . The invention is based on overlooking road signs and cues of preceding vehicles by visual only.
An object of the present invention is to provide a vehicle alarm device that can give a driver an alarm by hearing to prevent an accident from occurring .

[0004]

SUMMARY OF THE INVENTION An alarm device for a vehicle according to the present invention is an alarm device to be mounted on a vehicle, and comprises:
When the driver changes driving conditions, drive immediately after the vehicle
A breaker that informs the following vehicle
Signs corresponding to various signals from lights and direction indicators
Transmitting device for transmitting a wireless signal modulated according to
From the preceding vehicle traveling immediately before
No signal modulated by codes corresponding to various signals indicating
When a linear signal is received, the code is restored from the received signal.
Receiver that generates different alarm sounds according to the type
The transmission device is configured so that the driver of the own vehicle
A change of the running state is given to the following vehicle by a light or a direction indicator.
Brake pedal and direction indication to perform notice and execute
Alarm when the lever is operated or at the discretion of the driver
Operate the manual switch provided to send to the following vehicle
The code corresponding to the control signal from these operations
A code generator for generating and outputting the signal;
Output code of the code generator only when the control signal is input
Control to transmit a wireless signal modulated by
And a that transmission controller, said plurality of vehicles each warning
Running on the road in the same direction with the
When the driver of the own vehicle brakes to change the driving state
When the pedal or turn signal lever is operated or the surrounding
When the manual switch is operated according to circumstances,
Modulated with the respective code to sound the alarm
Radio signal is transmitted to the following vehicle and
Changing the running state of the preceding vehicle from the preceding vehicle or issuing an alarm
That a wireless signal modulated by a code indicating
A warning sound corresponding to the sign is generated, and the same direction
Each of the drivers of the plurality of cars traveling at
Oversight of changes in the running state of the preceding vehicle
Audible alarm sound even if there is unclear front due to bad field
The driver is alerted by driving, causing a rear-end collision.
Characterized to be able to avoid other traffic accidents
It is assumed that. And the wireless signal is an electromagnetic signal
Wave, light wave outside the visible region or volume wave due to air vibration
It is characterized by having. Furthermore, if the receiving device
Acoustic equipment (bell, spin
Alarm sound corresponding to the demodulated code output by
It is characterized by being synthesized speech .

[0005]

FIG. 1 is a perspective view of an embodiment to which the present invention is applied. In the figure, a wireless signal 25 modulated by a code corresponding to the type of a signal is emitted from a preceding vehicle 22 traveling from right to left on a general road 21 to a following vehicle 23.
You.

FIGS. 2 and 3 are circuit diagrams of a device according to a first embodiment of the present invention. The first embodiment uses an electromagnetic wave as a wireless signal. Figure 2 is Ru Oh <br/> an electrical block diagram of a transmission apparatus for transmitting an electromagnetic wave is equipped in an automobile. In the drawing, 1-1 to 1-n are input terminals of the code generator 2 to which signals corresponding to the type of warning (signal) (for example, right turn, left turn, braking, reverse, etc.) are inputted.
When a signal is received from a control signal of a braking lamp or the like, or when the driver wants to give an alarm to a car behind, the driver receives a signal from a switch or the like by operating the driver.
The code generator 2 generates a code (for example, a binary code) corresponding to the applied input signal. For example, if there are four types of signals, four types of codes can be configured by a combination of long and short signals. Further, as seen in a touch-tone telephone, a code can be formed by a combination of tone signals. The high-frequency oscillator 3 generates an original signal of an electromagnetic wave for transmitting a signal, and any frequency can be used. However, the communication distance is relatively short, the antenna to be described later is downsized, and it is easy to have directivity. For this purpose, an oscillator having a frequency in the UHF band or the SHF band is suitable. The modulator 4 modulates the output of the high-frequency oscillator 3 with a code from the code generator 2 (for example, phase modulation).
The output is guided to a transmission antenna 7 via an amplifier 6 via a transmission controller 5 for transmitting a high-frequency signal only when there is a transmission signal. The transmitting antenna 7 is a directional antenna such as a dipole antenna with a reflector having a gentle directivity in both the horizontal and vertical planes with respect to the rear direction of the vehicle, and transmits a modulated high-frequency signal only to the following vehicle. I do.

In the case of FIG . 2, instead of the combination of the oscillator 3 and the modulator 4, a modulatable oscillator, for example, a voltage-controlled frequency variable oscillator (so-called VCO) can be used to directly apply frequency modulation to the oscillator.

FIG. 3 is an electrical configuration diagram of a receiving device installed in an automobile when using electromagnetic waves. Receiving antenna 1
Reference numeral 1 denotes a directional antenna having a gentle directivity in front of the vehicle and having the same polarization plane as the above-described transmitting antenna, and receives only a high-frequency signal transmitted from the front of the vehicle. The received signal is amplified by the amplifier 14 and then demodulated by the demodulator 15 to obtain a code corresponding to the type of alarm. Although a receiver using the direct demodulation method is shown here, a single superheterodyne configuration or a double superheterodyne configuration may be used depending on the frequency band used and the required selectivity. If the decoder 16 uses, for example, four types of codes as signals classified into the types of alarms,
It is taken out as a signal output of the book, thereby driving the alarm sound generator 17. The alarm sound generator 17 generates an electric signal of an alarm sound (for example, a combination of audio tones, a combination of intermittent sounds, a synthesized voice, etc.) according to the type of code, and outputs a sound such as a speaker provided near the driver's seat. An alarm is given to the driver by the device 18.

FIG. 4 and FIG. 5 are circuit diagrams of an apparatus showing a second embodiment of the present invention. The second embodiment uses light as a wireless signal. Figure 4 shows an electrical configuration of a transmission apparatus installed in vehicles in case of using light. The process of obtaining a code output from the alarm inputs 1-1 to 1-n by the code generator 2 is the same as in FIG. Light emitting device (light emitting element)
Numeral 8 is for generating a light beam in the infrared region for transmitting a signal, and any wavelength can be used. The output current of the code generator 2 modulates the amplitude of the output of the light emitter 8. The light emitter 8 has light directivity in both the horizontal and vertical planes toward the rear of the vehicle. For example, light in the infrared region modulated only by the following vehicle with a light emitting element combined with an optical lens or a parabolic mirror. Send a signal. The Ru possible der using light of only a specific polarization plane by adding a polarizing glass in order to give the external light and difference.

FIG. 5 shows an electrical configuration of a receiving device installed in a vehicle when using light. The light receiving element 12 is a directional light receiving element using an optical system having a gentle directivity in front of the vehicle, and an optical signal having the same polarization plane and the same wavelength as the light emitter 8 sent from the front of the vehicle. Only receive and convert to electrical signals. Demodulating the received signal, the process of code 14-18 for generating alarm sound by decoding is the same as that shown in FIG.

FIGS. 6 and 7 are circuit diagrams of a device according to a third embodiment of the present invention. The third embodiment uses a volume wave caused by air vibration as a wireless signal.
FIG. 6 shows an electrical configuration of a transmission device installed in a vehicle when a volume wave caused by air vibration is used. Alarm input 1-1 to 1
The process of obtaining a code output from the -n by the code generator 2
Same as 2 . The high-frequency oscillator 3 generates an original signal of air vibration of ultrasonic waves for transmitting a signal, and any frequency can be used. However, the communication distance is relatively short, and an electro-acoustic transducer, an acousto-electric In order to reduce the size of the converter and make it easier to provide directivity, a super-audio frequency oscillator of 10 kHz or more is suitable. Modulator 4 modulates the output of the high frequency oscillator 3 (for example, phase modulation), its output only if a sending signal via the transmission controller 5 for transmitting a high frequency signal, the electroacoustic transducer via the amplifier 6 To the vessel 9. The electro-acoustic modulator 9 is a directional transducer such as a piezoelectric transducer with a horn, which has gentle directivity in both the horizontal and vertical directions with respect to the rear of the vehicle. Send out.

In the case of FIG . 6, instead of the combination of the oscillator 3 and the modulator 4, a modulatable oscillator, for example, a voltage-controlled frequency variable oscillator (so-called VCO) can be used to directly apply frequency modulation to the oscillator.

FIG. 7 shows an electrical configuration of a receiver installed in a vehicle when a volume wave caused by air vibration is used. The acoustoelectric transducer 13 has a gentle directivity in front of the vehicle,
The direction of the plane of polarization is the same as that of the electro-acoustic transducer 9 described above, and only the ultrasonic signal transmitted from the front of the vehicle is received. Codes 14 to 18 for demodulating and decoding the received signal to generate an alarm sound
Process until are the same as those shown in FIG.

[0014]

According to the present invention, oversight can be reduced by adding a sense of hearing to a driver who has conventionally relied only on visual perception, and a warning can be given for a decrease in attention due to driver fatigue or the like. Therefore, there is an extremely large effect in practical use.

[Brief description of the drawings]

FIG. 1 is a perspective view of an embodiment to which the present invention is applied.

FIG. 2 is a system diagram of a transmission device provided in an automobile when using electromagnetic waves according to the first embodiment of the present invention.

FIG. 3 is a first embodiment of the present invention using electromagnetic waves.
FIG. 2 is a system diagram of a receiving device provided in a car when the vehicle is in a state.

FIG. 4 shows a second embodiment of the present invention in which light is used.
FIG. 2 is a system diagram of a transmission device provided in a vehicle in each case.

FIG. 5 shows a second embodiment of the present invention in which light is used.
FIG. 1 is a system diagram of a receiving device provided in a vehicle in such a case.

FIG. 6 shows a third embodiment of the present invention, which is based on air vibration.
Transmitter system installed in automobile when using volume wave
It is a diagram.

FIG. 7 shows a third embodiment of the present invention, which is based on air vibration.
A receiver system installed in a car when using volume waves
It is a diagram.

[Explanation of symbols]

1-1 to 1-n Alarm signal input terminal 2 Code generator 3 High frequency oscillator 4 Modulator 5 Transmission controller 6 Amplifier 7 Transmission antenna 8 Light emitting element 9 Electroacoustic modulator 11 Receiving antenna 12 Light receiving element 13 Acoustoelectric converter 14 amplifier 15 demodulator 16 decoder 17 warning sound generator 18 the acoustic device 21 road 22 car 2 5 No line signals

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-63-298700 (JP, A) JP-A-4-241100 (JP, A) JP-A-61-163500 (JP, A) 22258 (JP, B1) JP 42-7514 (JP, B1) (58) Fields investigated (Int. Cl. ⁷ , DB name) G08G 1/00-1/16

Claims (5)

(57) [Claims] An alarm device for mounting on an automobile.
When the driver of the vehicle changes driving conditions,
A vehicle that informs the following vehicle
Signs corresponding to various signals from rake lights and direction indicators
A transmitting device for transmitting a wireless signal modulated by
The running state of the preceding vehicle from the preceding vehicle
Modulated by codes corresponding to various signals indicating changes
When the received wireless signal is received, the code is recovered from the received signal.
Reception that generates different alarm sounds depending on the type
The transmission device is configured so that the driver of the own vehicle operates a brake light or a direction indicator.
Warning of a change in driving condition to the following vehicle
Operate the brake pedal or turn signal lever to execute
Warning or when the driver decides,
This is when you operate the manual switch provided for sending
Generates and outputs codes corresponding to control signals from these operations
And a control signal input to the code generator.
Modulated by the output code of the code generator only when
Transmission controller for controlling transmission of a transmitted wireless signal
And a plurality of automobiles each equipped with the alarm device and on a road.
When the vehicle is traveling in the same direction,
Brake pedal or turn signal lever to change state
The manual switch when operating
When operating the
A radio signal modulated with a corresponding code
Sent to the vehicle and the preceding vehicle
Modulated by a sign indicating a change in the driving state of the car or a warning
Warning sound corresponding to the code when receiving the transmitted wireless signal
Occur, and the drivers of the plurality of cars traveling in the same direction on the road
Changes in the running state of the preceding vehicle visually
Oversight or poor visibility due to poor visibility,
The driving warning is alerted by an audible warning sound.
To avoid rear-end collisions and other traffic accidents
An alarm device for a vehicle, wherein 2. The alarm device according to claim 1, wherein the wireless signal is an electromagnetic wave. 3. The alarm device according to claim 1, wherein the wireless signal is a light wave outside a visible region. 4. The vehicle alarm device according to claim 1, wherein the wireless signal is a volume wave caused by air vibration. 5. The alarm sound of the receiving device according to claim 1,
2. The vehicle according to claim 1, wherein the vehicle is a synthesized voice.
Alarm device.