JPS58196735A - Intervehicle signal transmitting device - Google Patents

Abstract

PURPOSE:To constitute an inexpensive intervehicle signal transmitting device, by converting an input signal into an encoded pulse signal and transmitting and receiving it in the form of light or an ultrasonic wave. CONSTITUTION:A transmitting device 10 provided near the front window of a vehicle has the signal input device 14 consisting of a voide recognizing ECU22 stored with previously registered words, documents, etc., and a microphone 20 and this input device 14 recognizes a voice from the microphone 20 to output the recognition signal of a word to an encoder 16. The encoder 16 encodes the signal from the ECU22 or a keyboard and supplies the encoded signal to the transmitter 18 consisting of a transistor 24 and a light emitting diode 26. The transmitter 18 sends said encoded signal as light pulses to the receiver 12 in a vehicle which runs before the transmitter. The signal received by the photodiode 36 of the receiver 12 and regenerated by a decoder 32 is regenerated into a voice signal by a signal output device 34 having a voice synthesizing ECU38.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vehicle-to-vehicle signal transmission device, and more particularly to a vehicle-open signal transmission device for transmitting a signal during a vehicle running in tandem.

When traveling to a destination with two or more vehicles, it is common to discuss travel routes, rest areas, etc. before departure. However, there are many cases where it is necessary to have a meeting after departure, such as a sudden change of course or to take a break. He was sending signals to other cars. However, depending on such signal transmission means, it is not possible to sufficiently convey the contents of the signal to be transmitted to the other party, and it is necessary to stop the vehicle and explain the signal clearly each time.

For this reason, when traveling in groups of vehicles, especially when driving long distances, each vehicle is equipped with an OB radio, and signals can be transmitted between vehicles using this OB radio. It is being done. However, such OB radios are very expensive and require procedures under the Telecommunications Act, etc., so they cannot be used easily.

The present invention has been made in view of these problems, and an object of the present invention is to provide an inexpensive vehicle open signal transmitting device that can easily transmit signals between vehicles.

To achieve this objective, the device of the present invention is comprised of a transmitting device and a receiving device that are respectively installed in separate vehicles and transmit signals between the vehicles, and the transmitting device includes a signal input device that inputs signals, and a signal input device that inputs signals. An encoder converts the signal into a coded noise signal and outputs it, and the output of this encoder is converted into an optical signal or an ultrasonic signal and transmits it to a receiving device. a transmitter; the receiver includes a receiver that receives a signal transmitted from the transmitter; a decoder that decodes and outputs the coded /e-rus signal received by the receiver; and the decoder. a signal output device that outputs a signal decoded by the
A preferred embodiment of the present invention will be described below with reference to the drawings.

A characteristic feature of the present invention is that signal transmission between vehicles is performed using an optical Jt pulse signal or an ultrasonic pulse signal, which makes it possible to easily perform signal transmission between vehicles. be.

FIG. 1 shows a preferred embodiment of the vehicle open signal transmitting device of the present invention, in which a light pulse signal or an ultrasonic nocellus signal is transmitted to vehicle B from a transmitting device 10 installed near the front window of vehicle A. The direction is transmitted to a receiving device 12 provided near the rear window of the vehicle A, and a signal is transmitted from vehicle A to vehicle B.

FIG. 2 shows a detailed circuit diagram of such a transmitting device 10 and receiving device 12.

``In the present invention, the transmitting device 10 includes a signal input device 14 that inputs a signal, an encoder 161 that converts the input signal into a coded pulse signal, and converts the output of the encoder 16 into an optical pulse signal or an ultrasonic wave signal. and a transmitter 18 that converts the pulse signal into a pulse signal and transmits it to the receiver 12.

In the embodiment, the signal input device 14 is a microphone 20
and a voice recognition EOU 22 that recognizes the output of this microphone 20 as voice. Voice recognition EOU2
2, a predetermined word or sentence, such as "stop"
, "right turn", "left turn", etc. are registered, and when the voice input from the microphone 20 matches the registered word, the encoder 1 transmits a recognition signal corresponding to the registered word.
Output towards 6. The encoder 16 thus encodes the recognition signal input from the voice recognition EC 022 according to the signal content, converts it into a pulse signal, and outputs the pulse signal to the transmitter 18.

In this embodiment, the transmitter 18 converts the coded optical signal output from the encoder 16 into a coded optical signal using the transistor 24 and the light emitting diode 26, and transmits the signal to the receiver 12. Send. That is, the transistor 24 turns on and off according to the pulse signal output from the encoder 16, and turns on and off the energization circuit from the power supply VCC to the light emitting diode 26. Therefore, the light emitting diode F''26 outputs the pulse signal encoded by the encoder 16 and the iel This means that an optical pulse signal having the same content is transmitted.In the embodiment, an infrared signal is used as the nine-wave signal.

The receiving device 12 to which the optical Nogle signal is transmitted from the transmitting device 10 in this way is connected to the receiver 30 which receives the signal (No. 8) transmitted from the transmitter 18 and the coded signal received by this receiver 30. a) a decoder 32 that decodes and outputs the signal, and an external output device 34 that outputs the signal decoded by the decoder 32; in this embodiment, the transmitter 10 transmits the Since a light pulse signal is used as a signal to be received, the receiver 30 of the receiving device 12 is formed using a light receiving diode 36, which converts the received light/hair pulse signal into an electrical pulse signal and sends it to the decoder 32. The decoder 32 inputs the coded pulse notes input in this way to the encoder 1.
6, the signal is decoded into a signal before encoding and inputted to the signal output device @34.

In the embodiment, the signal output device 34 is a voice synthesis EC that converts the signal decoded by the decoder 32 into an audio signal.
and a speaker system 40 that converts the audio signal output from the audio synthesizer EOU 3g into actual audio.

Therefore, in the receiving device 12, the optical pulse signal received by the receiver 30 is decoded by the decoder 32, and output from the speaker system 40 as audio representing the received content.

The present invention has the above configuration, and its operation will be explained next.

When transmitting a signal from vehicle A to vehicle B using the vehicle open signal transmitting device of the present invention, one set of transmitters [10 and the rear vehicle traveling in parallel when only the receiving device f12 is used;
For example, the transmitter 10 is installed near the front window of vehicle A.
is installed, and its transmission direction is set to forward.

On the other hand, a receiving device 12 is installed near the rear window of vehicle B, which is the vehicle in front, and receives the signal from vehicle A, which is wave-throwing, for use as a lees receiving function.

In this state, for example, if you say "Stop" into the microphone 2°, the voice recognition EOU 22 will output the voice 'i&i!'. ! The signal is then encoded by the encoder 16, converted into a predetermined optical pulse signal from the light emitting diode 26, and transmitted. Since the light and R-lus signals of the embodiment are infrared rays, they have a certain spread and can be reliably transmitted to the receiving device 14 of the B vehicle traveling in the ^11 direction of the passenger vehicle.

The optical pulse signal transmitted in this manner is received by the light receiving diode 364C of the receiving device 12 of the B vehicle, converted into an electrical signal, and input to the decoder 32. 1 decoder 32 decodes the optical pulse signal received by the light receiving diode 136 and inputs it to the audio synthesis ECU 38, which is transmitted from the speaker system 40 (No. 1 is converted into audio and output.

Therefore, for example, if a voice saying "stop" is input into the microphone 20 in vehicle A, that voice will be directly uttered from the speaker system 40 of the receiving device 12 provided in vehicle B. This makes it possible to reliably transmit signals between vehicles even when the vehicles are running.

In the transmitting device 10, if two sets of transmitters 18 are provided at the output stage of the encoder 16, and one of them is placed near the front window of the vehicle and the other one near the rear window of the vehicle, it is possible to transmit signals in front of or beyond the vehicle. It becomes possible to send signals to vehicles traveling in either direction.

Similarly, if two sets of receivers 30 of the receiving device 12 are provided, and one of them is placed near the front window of the vehicle and the other near the rear window, the 1= signal is transmitted from the front of the vehicle or the rear of the vehicle. can receive any signal sent from the

In addition, the transmitter 18 of the transmitter 10 can be installed in a movable manner, and the alarm device 18 can be installed near the front window of the vehicle or near the second window of the vehicle. It becomes possible to send signals (RF) to a vehicle running either in front of the vehicle or in the direction of the vehicle.Similarly, the receiver 30 of the receiver 12 can be mounted in a movable position. For example, it is possible to receive either a signal transmitted from the front of the vehicle or a signal transmitted from the rear inside the vehicle.

In the present embodiment, signal transmission was performed using an infrared light pulse signal, but it is also possible to perform signal transmission using other types of light pulses 411, such as laser light. In this case, the laser beam has sharp directivity, and if left as it is, it will not be directed toward the receiving device 12.
Since it is difficult to set the transmission direction of the laser beam 9, it is necessary to use a lens or the like to expand the directional range of the laser beam 9.

Further, the transmission from the transmitting device IO to the receiving device 12 may be performed using an ultrasonic pulse signal instead of sending the optical pulse outside the body. , in this case, the transmitter 18 of the transmitter 10
It is also necessary to form the receiver 30 of the receiving device 12 using an ultrasonic transducer.

In addition, in this embodiment, a microphone 20 and a voice recognition device 0U22 are used as the signal input device 14 of the transmitting device 10, but it is also possible to use other signal input devices such as Keysade. .

Further, in the embodiment, the signal output device 3 of the receiver [12]
4, a voice synthesis ECU 38 and a speaker system 4
0 is used, however, it is also possible to use other signal output devices, such as a CRT or an indicator.

As explained above, according to the present invention, since signals are transmitted between vehicles using optical pulse signals or ultrasonic pulse signals, the complexity of intermediate chain procedures as in amateur radio and OB radio is eliminated. The circuit configuration can be simplified and costs can be reduced. Therefore, the vehicle open signal transmitting device of the present invention can be easily attached to a vehicle, and signals can be easily and reliably transmitted between vehicles.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of a vehicle open signal transmitting device of the present invention, and FIG. 2 is a block diagram of the vehicle open signal transmitting device of the present invention. DESCRIPTION OF SYMBOLS 10... Price sending device, 12... Receiving device, 14... Signal input device, 16... Encoder, 18... Transmitter, 30... Receiver, 32... Decoder, 34...No. 16 output device.

Claims (1)

[Claims] (1) Consisting of a transmitting device and a receiving device that are installed in separate vehicles and perform signal transmission between vehicles, and the transmitting device includes a signal input device that inputs signals, and a pulse signal that encodes the input signal. and a transmitter that converts the output of the encoder into an optical pulse signal or an ultrasonic/Jt pulse signal and transmits it to a receiving device. a receiver for receiving a signal received by the receiver; a decoder for decoding and outputting the coded ξ noise signal received by the receiver;
A signal output device that outputs a signal decoded by the decoder, and an inter-single picture signal transmission device that performs signal transmission between vehicles using an optical pulse signal or an ultrasonic pulse signal.