JP2021099609A - Vehicle audio system - Google Patents

Abstract

To provide a vehicle audio system capable of using an on-vehicle device for preventing a traffic accident.SOLUTION: An on-vehicle device 2 comprising vehicle identification information is installed in a vehicle A. Information acquisition means 11 acquires the vehicle identification information from the on-vehicle device 2. The vehicle identification information comprises vehicle type information of the vehicle A. Audio signal transmission means 15 transmits a predetermined audio signal corresponding to the vehicle identification information acquired by the information acquisition means 11. The on-vehicle device 2 comprises an audio device 21 that outputs voice sound by receiving an audio signal from the audio signal transmission means 15.SELECTED DRAWING: Figure 1

Description

The present invention relates to a vehicle voice system.

In recent years, traffic accidents due to aging, reverse driving on highways, school roads, and fatal accidents on walks in kindergartens have occurred frequently, and precious lives have been lost. Although the evolution of automobiles and the improvement of the road environment are progressing, it takes time to prevent accidents due to the evolution of automobiles, and it is difficult to prevent traffic accidents by improving the road environment.
Conventionally, there is known a toll charge calculation device that identifies an ETC on-board unit that communicates with an ITS spot when a vehicle passes through an ETC exit gate device, and calculates and charges a toll charge. The ETC on-board unit is also capable of audio output. ETC on-board units are widely used and can be used to prevent traffic accidents.

JP-A-2015-162100

However, in the device described in Patent Document 1, there is a problem that the on-board unit is not useful for preventing traffic accidents.

The present invention has been made focusing on such a problem, and an object of the present invention is to provide a voice system for a vehicle in which an on-board unit can be used to prevent a traffic accident.

In order to achieve the above object, the vehicle voice system according to the present invention has a vehicle identification information, an on-board unit provided in the vehicle, an information acquisition means for acquiring the vehicle identification information from the on-board unit, and the above. The vehicle-mounted device has a voice signal transmitting means for transmitting a predetermined voice signal corresponding to the vehicle identification information acquired by the information acquisition means, and the vehicle-mounted device receives the voice signal from the voice signal transmitting means and outputs the voice. It is characterized by having a voice device to perform.

In the vehicle voice system according to the present invention, voice is output by a predetermined voice signal corresponding to the vehicle identification information. Therefore, the voice that is useful for preventing traffic accidents is output according to the vehicle, and the on-board unit is used for traffic accidents. It can be used for prevention. In the present invention, the vehicle identification information is information for distinguishing a vehicle provided with an on-board unit from another vehicle.

In the vehicle voice system according to the present invention, it is preferable that the vehicle identification information includes the vehicle type information of the vehicle and the voice signal transmitting means has a configuration for transmitting the voice signal corresponding to the vehicle type information.
In this case, since the voice corresponding to the vehicle type information of the vehicle is output, it is possible to output the voice useful for preventing the traffic accident according to the vehicle type of the vehicle and utilize the on-board unit for the prevention of the traffic accident. The vehicle type information is, for example, information on a large vehicle, a light vehicle, an ordinary vehicle, and the like. The vehicle identification information may also include information such as a beginner, an elderly person, and a disabled person according to the vehicle driver.

The vehicle voice system according to the present invention includes detection means for acquiring the passing time information and passing speed information of a plurality of the vehicles passing through a predetermined position on the road, and the passing time information and the passing of each vehicle from the detecting means. It has an inter-vehicle distance calculation means for acquiring speed information and obtaining an inter-vehicle distance in front of the following vehicle from the time difference of the passing time information of two consecutive vehicles and the speed difference of the passing speed information. The signal transmitting means may have a configuration for transmitting the voice signal based on the front inter-vehicle distance obtained by the inter-vehicle distance calculating means.
In this case, the distance between vehicles in front of the following vehicle is obtained from the passing time information and the passing speed information of two vehicles that continuously pass through a predetermined position on the road, and the voice based on the obtained distance between vehicles in front is used as the voice device of the on-board unit. Can be output from. The output voice is, for example, a numerical value of the inter-vehicle distance, a warning prompting the inter-vehicle distance to be taken, or the like. The voice based on the distance between vehicles in front may be output by the voice device of the following vehicle of the two vehicles or the voice device of the preceding vehicle.

In the vehicle voice system according to the present invention, when the distance between vehicles in front obtained by the vehicle-to-vehicle distance calculation means is within a predetermined distance in relation to the passing speed information, the voice signal transmitting means emits a warning sound from the voice device. It is preferable to have a configuration for transmitting the audio signal to be output.
In this case, when the distance between vehicles in front is within a predetermined distance, a warning sound can be output from the voice device, and the on-board unit can be used to prevent a traffic accident. The warning sound may be output by the voice device of the following vehicle of the two vehicles, or by the voice device of the preceding vehicle.

In the vehicle voice system according to the present invention, when the distance between vehicles in front obtained by the inter-vehicle distance calculation means is within a predetermined distance in relation to the passing speed information, the voice signal transmitting means has a predetermined distance between vehicles in front. It is possible to have a configuration in which the voice signal for outputting a warning sound from the voice device is transmitted to the vehicle that has passed the predetermined position within a predetermined time after the vehicle within the distance has passed the predetermined position. preferable.
In this case, when the distance between vehicles in front is within a predetermined distance, it is possible to call attention to a vehicle following a vehicle having a short distance in front within a predetermined time with a warning sound.

The vehicle voice system according to the present invention has a disaster information receiving means for receiving regional disaster information.
It is preferable that the audio signal transmitting means has a configuration for transmitting the audio signal based on the regional disaster information received by the disaster information receiving means.
In this case, regional disaster information can be output from the voice device and used for evacuation from a disaster.
In the vehicle voice system according to the present invention, the vehicle-mounted device includes an ETC vehicle-mounted device, and the information acquisition means, the voice signal transmission means, the detection means, the inter-vehicle distance calculation means, and the disaster information receiving means are on the roadside device. It is preferable that it is provided.

INDUSTRIAL APPLICABILITY According to the present invention, it is possible to provide a vehicle voice system in which a loader can be used to prevent a traffic accident.

It is a functional block diagram of the voice system for a vehicle of embodiment of this invention. It is a conceptual diagram of the voice system for a vehicle shown in FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 and 2 show a vehicle voice system according to an embodiment of the present invention.
As shown in FIGS. 1 and 2, the vehicle voice system includes a roadside device 1 and an in-vehicle device 2.
The roadside device 1 is installed on the side of a road such as an expressway. The roadside device 1 is provided with a computer, and functionally includes an information acquisition means 11, a detection means 12, an inter-vehicle distance calculation means 13, a disaster information receiving means 14, and an audio signal transmission means 15.

The information acquisition means 11 transmits a predetermined radio wave toward the road and acquires vehicle identification information by bidirectional communication with the vehicle-mounted device 2.
The detecting means 12 has a time measuring device 12a and a speedometer 12b. The timekeeping device 12a has a digital clock function. The speedometer 12b comprises a laser Doppler speedometer that measures speed using the Doppler effect. The detection means 12 uses the time measuring device 12a and the speedometer 12b to acquire the passing time information and the passing speed information of a plurality of vehicles A passing through predetermined positions on the road.

The inter-vehicle distance calculation means 13 is composed of a CPU, acquires the passing time information and the passing speed information of each vehicle A from the detecting means 12, and obtains the time difference of the passing time information of two consecutive vehicles A and the speed of the passing speed information. From the difference, the distance between vehicles in front of the following vehicle A is calculated.
The disaster information receiving means 14 is adapted to receive regional disaster information such as earthquake early warnings and tsunami warnings distributed by the Japan Meteorological Agency, and disaster / evacuation information transmitted by local governments.

The audio signal transmitting means 15 has a memory, a CPU, an input unit, and an output unit, and is connected to the information acquisition means 11, the detection means 12, the inter-vehicle distance calculation means 13, and the disaster information receiving means 14. The voice signal transmitting means 15 includes (1) a predetermined voice signal corresponding to the vehicle identification information and the vehicle type information acquired by the information acquisition means 11, and (2) a voice signal based on the distance between vehicles in front obtained by the distance calculation means 13. (3) A voice signal for outputting a warning sound from the voice device 21 when the distance between vehicles in front obtained by the vehicle-to-vehicle distance calculation means 13 is within a predetermined distance in relation to passing speed information, (4) Obtained by the vehicle-to-vehicle distance calculation means 13. When the distance between vehicles in front is within a predetermined distance in relation to the passing speed information, the vehicle A having a distance between vehicles in front within a predetermined distance has passed the predetermined position within a predetermined time after passing the predetermined position. , A voice signal for outputting a warning sound from the voice device 21, and (5) a voice signal based on the regional disaster information received by the disaster information receiving means 14 are transmitted.

The vehicle-mounted device 2 includes an ETC vehicle-mounted device 2, has vehicle identification information recorded in a memory, and is attached to the vehicle A. The vehicle-mounted device 2 has a two-way communication function. The vehicle identification information includes the individual identification information of the vehicle A and the vehicle type information. The individual identification information consists of, for example, a chassis number. The vehicle type information includes, for example, type information such as a large vehicle, a light vehicle, and an ordinary passenger car. The vehicle-mounted device 2 has a voice device 21 that receives a voice signal from the voice signal transmitting means 15 and outputs the voice.

In the vehicle voice system according to the present invention, the information acquisition means 11 acquires vehicle identification information from the vehicle-mounted device 2 of the vehicle A traveling on the road by two-way communication, and the voice signal transmission means 15 corresponds to the vehicle type information of the vehicle A. The predetermined voice signal is transmitted, and the voice device 21 of the vehicle-mounted device 2 outputs the voice corresponding to the vehicle type information. For example, if vehicle A is a large vehicle, the voice will be "Be careful because the road width is narrow.", And if it is a normal vehicle, it will be "Accident-prone area, so be careful of speed." Please, for example. In this way, the on-board unit 2 can be utilized for the prevention of traffic accidents by outputting voices and the like that are useful for preventing traffic accidents according to the vehicle type of the vehicle A.

Further, the detecting means 12 acquires the passing time information and the passing speed information of the two vehicles A that continuously pass a predetermined position on the road, and the inter-vehicle distance calculating means 13 obtains and obtains the distance between the following vehicles A in front of the vehicle A. The sound based on the distance between vehicles ahead can be output from the sound device 21 of the vehicle-mounted device 2. The output voice is, for example, "Please take a distance of 80 m between vehicles" when the speed is 80 km / h.

Further, when the distance between vehicles in front is within a predetermined distance in relation to the passing speed information, a warning sound is output from the voice device 21. The warning sound is, for example, when the speed is 80 km / h and the inter-vehicle distance is 40 m, "Please take the inter-vehicle distance. It is dangerous." In this case, it is preferable that the voice device 21 of the preceding vehicle A also receives a voice such as "the distance between the vehicle and the following vehicle is short."
Furthermore, a warning sound, for example, a voice such as "a dangerous vehicle is running ahead" is output to the vehicle A following the vehicle A having a short distance in front within a predetermined time, and the pool is struck. It is possible to call attention to accident prevention.

Further, in the vehicle voice system according to the embodiment of the present invention, regional disaster information can be output from the voice device 21 and used for evacuation from a disaster.
A magnet detachable mark equipped with a data transmission / reception chip for transmitting information on beginners, the elderly, persons with disabilities, etc. may be affixed to the vehicle A. In this case, the information acquisition means 11 can acquire the information from the mark, transmit an audio signal in accordance with the information, and output the audio from the audio device 21 of the vehicle A.

A Vehicle 1 Roadside device 2 In-vehicle device 11 Information acquisition means 12 Detection means 12a Timekeeping device 12b Speedometer 13 Inter-vehicle distance calculation means 14 Disaster information receiving means 15 Voice signal transmitting means 21 Voice device

Claims (7)

An on-board unit that has vehicle identification information and is installed in the vehicle,
An information acquisition means for acquiring the vehicle identification information from the vehicle-mounted device, and
It has an audio signal transmitting means for transmitting a predetermined audio signal corresponding to the vehicle identification information acquired by the information acquiring means.
The vehicle-mounted device has a voice device that receives the voice signal from the voice signal transmitting means and outputs the voice.
A featured vehicle voice system. The vehicle identification information includes vehicle type information of the vehicle.
The audio signal transmitting means has a configuration for transmitting the audio signal corresponding to the vehicle type information.
The vehicle voice system according to claim 1. A detection means for acquiring the passing time information and the passing speed information of a plurality of the vehicles passing through a predetermined position on the road, and
The passing time information and the passing speed information of each vehicle are acquired from the detecting means, and the distance between the following vehicles in front of the following vehicle is obtained from the time difference of the passing time information of the two consecutive vehicles and the speed difference of the passing speed information. It has a vehicle-to-vehicle distance calculation means for calculating the distance,
The audio signal transmitting means has a configuration of transmitting the audio signal based on the front inter-vehicle distance obtained by the inter-vehicle distance calculating means.
The vehicle voice system according to claim 1 or 2. When the distance between vehicles in front obtained by the inter-vehicle distance calculating means is within a predetermined distance in relation to the passing speed information, the voice signal transmitting means transmits the voice signal for outputting a warning sound from the voice device. To have
The vehicle voice system according to claim 3. When the distance between vehicles in front obtained by the inter-vehicle distance calculation means is within a predetermined distance in relation to the passing speed information, the voice signal transmitting means causes the vehicle having a distance between vehicles in front within the predetermined distance to perform the predetermined position. Having a configuration in which the voice signal for outputting a warning sound from the voice device is transmitted to the vehicle that has passed the predetermined position within a predetermined time after passing.
The vehicle voice system according to claim 4. Has a disaster information receiving means to receive local disaster information,
The audio signal transmitting means has a configuration for transmitting the audio signal based on the regional disaster information received by the disaster information receiving means.
The vehicle voice system according to claim 5. The on-board unit is composed of an ETC on-board unit, and the information acquisition means, the voice signal transmission means, the detection means, the inter-vehicle distance calculation means, and the disaster information receiving means are provided on the roadside device. The vehicle voice system according to claim 6.

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