JP2007241824A - Operation support device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an operation support device allowing a driver and the like to easily hear an alarm given based on detected information and music and the like from a portable music apparatus. <P>SOLUTION: This operation support device 1 is provided with an alarm part 3 outputting an alarm sound signal based on the detected information, a speaker part 4 giving alarm sound by receiving the alarm sound signal from the alarm part, a transmission part 5 transmitting the alarm sound signal outputted from the alarm part as a signal complying with receipt by another onboard sound apparatus installed separately from the drive support device 1, and a control part 2 including a transmission destination selection function for selecting either of the speaker part and the transmission part as a destination of the alarm sound signal from the alarm part. Preferably, the operation support device 1 is also provided with an external sound input terminal 6, through which a sound source sound signal from the portable sound apparatus is inputted, and a transmission sound selection part 7 selecting one of sound source sound signals to be outputted from the transmission part. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a driving support device, and more particularly, to a driving support device that notifies a driver or the like of an own vehicle by an alarm sound when a place where a speed control device is installed is detected.

  Conventionally, an in-vehicle car stereo for listening to music, radio, etc. in a car, and an in-vehicle radio for obtaining current information, traffic information, and the like are used. Also, as represented by radar detectors and car navigation systems, the radar is used to investigate information useful to the driver, such as the location where the speed control device is installed, traffic jam information, and accident information. In-vehicle driving assistance devices that inform the user are also used.

  However, in the above-described conventional driving support device, the sound pressure of the built-in speaker is limited, and it is difficult to hear the alarm depending on the surrounding sound environment such as road noise, wind noise, engine sound, car stereo music, etc. There was a case.

  Further, even if such a driving support device is set to a large volume, there is a problem that there is a limit to the power supply voltage and the characteristics of the speaker, causing sound cracking and the like.

  Therefore, the present invention has been made in view of the problems in the conventional driving support device, and when warning based on information detected by the driving support device, it is easier for the driver and passengers to hear, It is another object of the present invention to provide a driving support device that can listen to music from a portable music device.

  In order to achieve the above object, the present invention is a driving support device that is mounted on a vehicle and supports driving of the host vehicle, and outputs an alarm sound signal based on detected information, and the alarm unit. The speaker unit that receives the alarm sound signal and emits the alarm sound, and the alarm sound signal output from the alarm unit is transmitted as a signal suitable for reception of the vehicle-mounted acoustic device separate from the driving support device It is provided with a transmission part and the transmission destination selection part which selects whether the warning sound signal from the said warning part is transmitted to the said speaker part or the said transmission part, It is characterized by the above-mentioned.

  And according to the present invention, the alarm sound signal output from the alarm unit can be transmitted as a signal suitable for reception by the in-vehicle acoustic device, and can be emitted from the in-vehicle acoustic device into the vehicle as the alarm sound. Without being influenced by the sound environment of the vehicle and without causing sound cracking, it can be reliably transmitted to the driver and passengers with high sound quality and high volume.

  The driving support device includes a radar detector that detects a place where the speed control device is installed, and outputs an alarm sound signal from the alarm unit when the location where the speed control device is installed is detected. be able to.

  In the driving support apparatus, the on-vehicle acoustic device includes an FM radio receiver, and the transmission unit transmits the warning sound signal as a radio wave suitable for reception by the FM radio receiver. it can. As a result, the alarm sound can be heard via the FM radio receiver mounted on the vehicle.

  Further, the driving support device is configured to input either an external audio input terminal for inputting a sound source audio signal from a portable music device, an alarm audio signal from the alarm unit, or a sound source audio signal from the external audio input terminal. A transmission voice selection unit for selecting whether to output from the transmission unit can be provided. As a result, even when the FM radio receiver is fixed to a specific frequency, the transmission sound selection unit outputs the sound source sound signal from the portable music device from the transmission unit, thereby allowing music from the portable music device to be output. I can hear you.

  As described above, according to the present invention, it is possible to provide a driving support device that can be easily heard by a driver and can listen to music from a portable music device when warning is performed based on information detected by the driving support device. be able to.

  Next, embodiments of the present invention will be described with reference to the drawings. In the following description, the driving support device according to the present invention will be described as an example of a case where a radar detector is used and an alarm is issued in the vehicle via an FM radio receiver as an in-vehicle acoustic device.

  FIG. 1 shows an embodiment of a driving support apparatus according to the present invention. A radar detector 1 has a radar detection function and a control unit (microcomputer control unit) 2 for controlling the entire apparatus, and a control unit. When 2 detects a place where the speed control device is installed, an alarm unit 3 that outputs an alarm audio signal, a main body speaker unit 4 that receives an alarm audio signal from the alarm unit 3 and emits an alarm audio, An FM transmitter 5 for transmitting the alarm sound signal output from the alarm unit 3 as a signal suitable for reception by an FM radio receiver (not shown) separate from the driving support device 1; The external audio input terminal 6 for inputting the sound source audio signal from the figure) and the alarm audio signal from the alarm unit 3 or the sound source audio signal from the external audio input terminal 6 to be output to the FM transmitter 5 Select transmission audio to select And a part 7.

  When the control unit 2 receives a radar wave from the speed control device, the control unit 2 sends a radar detection function for instructing the alarm unit 3 to issue an alarm and an alarm sound signal from the alarm unit 3 to the main body speaker unit 4. A transmission destination selection function is provided for selecting either transmission or transmission to the FM transmission unit 5 via the transmission voice selection unit 7.

  The FM transmitter 5 selects a channel that is not used for FM radio broadcasting in an area where the radar detector 1 is used in order to avoid interference. The FM transmission function channel (transmission frequency) can be selected from a plurality of channels under microcomputer control. The FM radio band plan of the whole country is examined, and the selected frequency is extracted from the area where this radar detector 1 is used and the transmission output of FM broadcast radio waves in that area is small.

  The transmission voice selection unit 7 selects which voice signal of the external voice input terminal 6 or the alarm unit 3 is to be transmitted to the FM transmission unit 5, especially when a radar wave from the speed control device is received. The voice signal from the alarm unit 3 is transmitted with priority.

  Next, the operation of the radar detector 1 having the above configuration will be described with reference to FIG.

  During normal times, the sound source audio signal from the external audio input terminal 6 is output to the FM transmitter 5 via the transmission audio selector 7, and the audio is reproduced using an acoustic device including an FM radio receiver. On the other hand, when a warning operation is required on the radar detector 1 side, the transmission voice selection unit 7 transmits a voice signal from the warning unit 3 to the FM transmission unit 5, and an acoustic device including an FM radio receiver Use to trigger an alarm.

In consideration of practical convenience, the present invention has a plurality of transmission operation modes as follows.
(1) FM transmission mode In this mode, the sound source audio signal from the external audio input terminal 6 and the audio signal from the alarm unit 3 are all transmitted via the FM transmission unit 5. As a result, the music source of the in-vehicle audio device including the FM radio receiver is not reproduced, and usually the music of the portable music device is listened to and the warning sound of the radar detector 1 is switched and output when necessary. it can. In this mode, the warning sound of the radar detector 1 is also output from the in-vehicle acoustic device, so that it is possible to avoid missing the warning.
(2) FM + SPK mode In this mode, in addition to the function similar to the FM transmission mode of (1), the warning sound of the radar detector 1 is also output from the main body speaker unit 4. When it is often necessary to reproduce a music source of an in-vehicle audio device including an FM radio receiver, it is difficult to occupy the FM channel by the FM transmission function of the present invention. Therefore, the warning can be detected by the main body speaker unit 4 built in the radar detector 1.
(3) FM independent mode In this mode, only the sound source audio signal from the external audio input terminal 6 is always reproduced from the in-vehicle acoustic device via the FM transmitter 5. The warning sound of the radar detector 1 is output from the main body speaker unit 4 of the radar detector 1. In this mode, the playback music on the designated channel is always transmitted regardless of the warning of the radar detector 1, and the warning sound of the radar detector 1 is output from the main body speaker unit 4.

It is a functional lineblock diagram showing one embodiment of a driving support device concerning the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Radar detector 2 Control part 3 Alarm part 4 Main body speaker part 5 FM transmission part 6 External voice input terminal 7 Transmission voice selection part

Claims (4)

A driving support device mounted on a vehicle and supporting driving of the host vehicle,
An alarm unit that outputs an alarm sound signal based on the detected information;
A speaker unit that receives an alarm sound signal from the alarm unit and emits an alarm sound;
A transmission unit that transmits the warning audio signal output from the warning unit as a signal that is suitable for reception by an in-vehicle acoustic device separate from the driving support device;
A driving support apparatus comprising: a transmission destination selection unit that selects which of the speaker unit and the transmission unit transmits an alarm sound signal from the alarm unit. The driving support device includes a radar detector that detects a place where a speed control device is installed,
The driving support device according to claim 1, wherein when a place where the speed control device is installed is detected, an alarm sound signal is output from the alarm unit.   The in-vehicle acoustic device includes an FM radio receiver, and the transmission unit transmits the alarm sound signal as a radio wave suitable for reception by the FM radio receiver. The driving support device according to 1.   Select either external audio input terminal for inputting sound source audio signal from portable music device and alarm audio signal from alarm unit or sound source audio signal from external audio input terminal from transmitting unit The driving support device according to claim 1, further comprising a transmission voice selection unit for performing the transmission.

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