JP2007201590A - Vehicle-mounted video apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To identify whether a connected monitor is modified for the operator or not, and to switch the monitor to the video image of emergency warning broadcasting even if a vehicle is running when the connected monitor is not modified for the operator. <P>SOLUTION: A vehicle-mounted video apparatus includes a broadcasting receiver which can receive emergency warning broadcasting, a monitor outputting a video image delivered from the broadcast receiver or a video image delivered from other than the broadcast receiver, and a switching controller having a switching control means for selecting a video image input to the monitor. When the broadcast receiver receives the emergency warning broadcasting, the switching controller selects only the input video image of the monitor not for the operator as the video image of the broadcast receiver depending on the identification results from the connection monitor identification means. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an in-vehicle video apparatus that includes a broadcast receiving apparatus capable of receiving an emergency warning broadcast and a monitor that selects a plurality of input videos and outputs the video, and switches the video when receiving the emergency warning broadcast. It is.

  In analog TV broadcasts, satellite digital broadcasts, and terrestrial digital broadcasts, a mechanism is used in which a receiver can forcibly watch an emergency warning broadcast by a start control signal or the like when a disaster occurs. The emergency alert broadcast conveys important disaster information, and when the emergency alert broadcast is received, the monitor image should be immediately switched to the emergency alert broadcast image. However, in the in-vehicle monitor, it is dangerous to display the TV image on the driver's seat monitor while driving, which may divert the driver's attention and cannot be switched to an emergency warning broadcast image unconditionally.

An in-vehicle audiovisual apparatus provided with a broadcast receiving apparatus, which displays an emergency alarm broadcast video on a monitor when it is estimated that there is a person in the vehicle in a non-running state when the emergency alarm broadcast is received There is. (For example, refer to Patent Document 1).
JP 2003-324361 A

  The in-vehicle monitor may be installed not only in the driver's seat but also in the rear seat, and the rear seat monitor is for non-drivers, so that it is allowed to display a TV image even while traveling. In this case, even if an image of a DVD player or the like is output to the rear seat monitor, it is desirable to switch to an emergency alert broadcast image when an emergency alert broadcast is received. In the conventional invention, the driver monitor and the non-driver monitor are not distinguished. For this reason, when an emergency warning broadcast is received, an in-vehicle video device that switches to an emergency warning broadcast image unconditionally has a problem that a TV video is displayed on the driver's seat monitor even while the vehicle is running. In a vehicle-mounted video device that switches to an emergency warning broadcast image when it is estimated that there are people in the vehicle in the state, there is a problem that the image on the rear seat monitor cannot be switched to the emergency warning broadcast.

  The present invention identifies whether or not the connected monitor is for the driver, and when the monitor is for the driver, it is not switched to the emergency warning broadcast image during driving, and the monitor for the non-driver is used. In some cases, an object is to enable switching to an emergency warning broadcast image even during traveling.

In order to solve the above-described conventional problems, an in-vehicle video device according to the present invention is output from a broadcast receiving device capable of receiving an emergency alert broadcast, a video output from the broadcast receiving device, or a device other than the broadcast receiving device. A monitor device for outputting an image; a connection monitor identifying means for identifying whether the monitor device is for a driver or a non-driver; and a switching control means for selecting an image to be input to the monitor device An in-vehicle video device provided with a switching control device,
When the broadcast receiving device receives an emergency warning broadcast, the switching control device only receives the input image of the non-driver's monitor device as the image of the broadcast receiving device according to the identification result of the connection monitor identifying means. It is characterized by selecting so that it may become.

  According to the present invention, it is possible to perform appropriate video switching control for both a driver monitor and a non-driver monitor when receiving an emergency warning broadcast, thereby providing safer driving and a vehicle interior space. be able to.

(Embodiment 1)
FIG. 1 is a block diagram showing a configuration of an in-vehicle video apparatus according to Embodiment 1 of the present invention. In FIG. 1, 1 is a broadcast receiving device capable of receiving an emergency warning broadcast, 2 is installed in a driver's seat, and a driver's seat monitor that outputs images input from the broadcast receiving device or navigation device, 3 is installed in a rear seat, Rear seat monitor for outputting video input from a broadcast receiver or DVD player, 4 is a connection monitor identification means for identifying whether the connected monitor device is for a driver, and 5 is a driver seat monitor and rear seat A switching control means 6 for selecting a video input to the monitor, 6 is input to the connection monitor identification means 4, the switching control means 5, and the video / audio selector 1 for switching the video input to the driver seat monitor 2 and the rear seat monitor 3. This is a switching control device comprising a video / audio selector 2 for switching video.

  The broadcast receiving apparatus 1 extracts and demodulates a specific frequency from the signal received by the antenna, converts it to a transport stream, extracts an MPEG2 video stream and audio stream from the transport stream, decodes them, and outputs them as video and audio. Also, the value of the emergency warning broadcast activation flag in the TMCC (Transmission and Multiplexing Configuration Control) signal and the emergency information descriptor start_end_flag in the PMT are constantly monitored. When the value of the emergency warning broadcast activation flag is 1 and the value of start_end_flag is 1, it is determined that the emergency warning broadcast has started, a notification signal is sent to the switching control device 6, and the emergency information description Channel selection processing for the emergency alert broadcast service indicated by service_id in the child is performed, and video and audio of the emergency alert broadcast are output.

  The navigation device outputs the video showing the vehicle position on the road map using the position information from the GPS and the map information held in the interior, and also provides voice or text for the driving guidance to the destination inputted in advance. Video and audio are output by superimposing figures on video. In addition, when a video / audio switching operation is performed on the navigation device by the user, a control signal is sent to the switching control device 5, and the switching control device 5 outputs the video / audio of the driver's seat monitor from the broadcast receiving device. Switching to broadcast video / audio or navigation video / audio output from the navigation device.

  The DVD player decodes and reproduces the DVD content and outputs video and audio. Further, when a reproduction start operation is performed on the DVD player by the user, a control signal is sent to the switching control means 5, and the switching control device 5 broadcasts the image of the rear seat monitor from the broadcast receiving device. Switching to video / audio or DVD video / audio output from a DVD player.

  The switching control device 6 is provided with a setting switch for each output terminal as shown in FIG. 2, and the user sets the setting switch to the driver seat or the rear seat according to the installation location of the monitor to be connected. The monitor identifying means 4 identifies whether or not the connected monitor device is for the driver by referring to the value of the setting switch. The setting for each output terminal can be set on a setting screen, or information can be acquired through an in-vehicle local area network.

  It is assumed that the switching control means 5 detects information on whether or not the vehicle is running using the parking brake operation state. That is, the state in which the parking brake is operated so as to be effective is determined as not running. When the switching control means 5 detects the notification signal from the broadcast receiving apparatus 1, it switches the output video of all the video / audio selectors to the broadcast video / audio output from the broadcast receiving apparatus 1 if it is not running. If the vehicle is running, the monitor identification unit 4 is used to identify whether the monitor device connected to the video / audio selector to which the driver monitor is connected is for the driver. Only for the video / audio selector to which the monitor device is connected, the output video is switched to the broadcast video / audio output from the broadcast receiving device 1. The switching control device may be integrated with the monitor.

  When the broadcast reception device 1 receives an emergency warning broadcast in a state where the driver's seat monitor outputs navigation video / audio and the rear seat monitor outputs DVD video / audio while the vehicle is not traveling, the broadcast reception device 1 sends a notification signal to the switching control means 5 that an emergency warning broadcast has been received. When receiving the notification signal, the switching control means 5 switches the output video of the video / audio selector 1 and the video / audio selector 2 to the broadcast video / audio output from the broadcast receiver 1.

  When the broadcast receiver 1 receives an emergency warning broadcast while the driver's seat monitor outputs navigation video and audio while the rear seat monitor outputs DVD video and audio while traveling, the switching control means 5 When the notification signal is received from the broadcast receiving apparatus 1, the connection monitor identifying means 4 is used to identify whether the monitor connected to the video / audio selector 1 is for the driver. In this embodiment, the audio / video selector 1 does not do anything because a driver monitor is connected. Similarly, the switching control means 5 identifies whether the monitor connected to the video / audio selector 2 is for a driver. In this embodiment, since the video / audio selector 2 is connected to the non-driver monitor, the switching control means 5 switches the video output from the video / audio selector 2 to the broadcast video / audio output from the broadcast receiver 1.

  The in-vehicle video device of the present invention identifies whether or not the connected monitor device is for a driver, and performs video switching processing for the driver monitor device when receiving an emergency warning broadcast and non-driver monitor device. By making the video switching process different from the process, it is possible to immediately present emergency warning broadcasts to non-drivers without interfering with the driver's driving operation. The present invention is useful for an in-vehicle video apparatus in which the installation location of a video apparatus, a monitor seat such as a driver's seat or a rear seat is variable.

Block diagram of in-vehicle video apparatus in Embodiment 1 of the present invention The figure which shows the external appearance of the output terminal of the switching control apparatus in Embodiment 1 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Broadcast receiver 2 Driver's seat monitor 3 Rear seat monitor 4 Connection monitor identification means 5 Switching control means 6 Switching control apparatus

Claims (1)

A broadcast receiver capable of receiving an emergency alert broadcast; and
A monitor device that outputs video output from the broadcast receiving device or video output from other than the broadcast receiving device;
Connection monitor identification means for identifying whether the monitor device is for a driver or a non-driver;
A vehicle-mounted video device comprising a switching control device having a switching control means for selecting a video input to the monitor device,
When the broadcast receiving device receives an emergency warning broadcast, the switching control device only receives the input image of the non-driver's monitor device as the image of the broadcast receiving device according to the identification result of the connection monitor identifying means. A vehicle-mounted video apparatus, characterized by being selected as follows.

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