JP3077110U - In-vehicle monitor system and in-vehicle monitor control device - Google Patents

Abstract

(57) [Summary] [Problem] To display an image captured by a monitor camera that captures an image of the rear of an automobile when moving backward. When a user shifts a shift lever (8) to a back (reverse) position in order to start a reverse movement, and when the power supply state on the back lamp power supply line (6) changes from off to on, the control unit detects this. A monitor camera 101 transmits a remote control signal pattern for television / video switching of the on-vehicle monitor device 2 stored in the memory 102, and displays a display image of the on-vehicle monitor device 2 on a rear view of the vehicle.
Switch to the image.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to an in-vehicle monitor control device that controls switching of a display channel of an in-vehicle monitor device that displays a television broadcast image, a navigation image, and an image captured by a monitor camera.

[0002]

[Prior art]

 2. Description of the Related Art In recent years, an in-vehicle monitor device that displays a television broadcast image or a navigation image of a navigation device may be mounted on an automobile. In addition, a monitor camera that captures the rear of the vehicle is installed in the vehicle to confirm the safety behind the vehicle when the vehicle is moving backwards. The image behind the vehicle is displayed on an in-vehicle monitor device by switching to an input channel to be used.

Here, usually, such switching of the display channel is performed by a driver operating a remote control device attached to the vehicle-mounted monitor device to set the display channel of the vehicle-mounted monitor device to the input channel of the image captured by the monitor camera. This is done by switching.

[0004]

[Problems to be solved by the invention]

 As described above, conventionally, when the driver checks the safety behind the vehicle using the in-vehicle monitor device, the driver must operate the remote control device every time the vehicle moves backward, and the operation is complicated. Because of this complexity, even if a monitor camera is provided, it may be neglected to confirm safety at the rear using the monitor camera and the in-vehicle monitor device.

Accordingly, an object of the present invention is to display an image captured by a monitor camera that captures an image of the rear of the vehicle when the vehicle moves backward without requiring user operation.

[0006]

[Means for Solving the Problems]

 In order to achieve the object, the present invention includes, for example, a monitor device equipped with a plurality of image input channels, each of which is mounted on an automobile, a monitor camera for photographing the rear of the vehicle, and a monitor control device. The monitor device is a monitor device that switches an image input channel to be displayed in response to reception of a predetermined remote control signal, and an image captured by the monitor camera is output to one image input channel of the monitor device. The monitor control device includes: a detection unit configured to detect a backward movement state of the vehicle; a storage unit configured to store the predetermined remote control signal; and a storage unit configured to store the storage unit when the detection unit detects the start of the backward movement of the vehicle. Means for displaying the remote control signal stored in the monitor means as an image input channel to be displayed by the monitor device; To switch to Le provides a vehicle monitor system characterized by having a remote control unit to be transmitted to the monitoring device.

According to such an in-vehicle monitor device, when the monitor control device detects the start of the backward movement of the vehicle, the monitor control device stores the remote control signal stored in the storage means as a display target. Is transmitted to the monitor device so that the image input channel to be switched is switched to the image input channel from which the image captured by the monitor camera is output. Shooting the rear image captured by the monitor camera can be displayed.

Here, if the monitor control device detects the backward movement of the vehicle in accordance with the presence or absence of power supply to the rear illumination lamp of the vehicle, no special means is required and the monitor control device is extremely simple. In the configuration, the start of the backward movement of the vehicle can be detected.

In the above-mentioned monitor control device, if a remote control signal is received from the outside and the received remote control signal is stored in the storage means as the predetermined remote control signal, the monitor control device can be used for any monitor device. By transmitting and storing a remote control signal from the remote control device to the monitor control device, an arbitrary monitor device can be used as the monitor device of the vehicle-mounted monitor system. Alternatively, the present vehicle-mounted monitor system using this monitor device can be mounted on a vehicle already equipped with the monitor device, so-called retrofit.

[0010] In the monitor control device, when the detection means detects the end of the backward movement of the vehicle, the monitor control unit stores the remote control signal stored in the storage means as an image input channel to be displayed. Is transmitted to the monitor device so that the monitor device is switched to the image input channel that the monitor device was displaying before the vehicle starts moving backward, so that the display of the monitor device is automatically changed to the original image at the end of reverse driving. The display can return to the input channel display.

[0011]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described.

FIG. 1 shows a configuration of an on-vehicle monitor system according to the present embodiment.

In FIG. 1, reference numeral 1 denotes an in-vehicle monitor control device. Reference numeral 2 denotes an in-vehicle monitor device having a built-in TV tuner and having one or a plurality of video input channels and using a CRT or a liquid crystal display device as a display unit. Reference numeral 3 denotes an infrared remote control device of the on-vehicle monitor device 2, 4 denotes a monitor camera, 5 denotes a back lamp for illuminating the rear of the vehicle, 6 denotes a back lamp power supply line, 7 denotes a power supply control device, and 8 denotes a gear change operation of the automobile. It is a shift lever that accepts.

Here, as shown in FIG. 2, the on-vehicle monitor device 2 is provided near the dashboard in front of the driver's seat so that the driver can visually recognize it. The on-vehicle monitor control device 1 is provided at a position where it can face the on-vehicle monitor device 2, for example, behind a rear seat as shown in the figure. The monitor camera 4 is disposed so as to be able to photograph the rear outside the vehicle.

The back lamp 5, the back lamp power supply line 6, the power supply control device 7, and the shift lever 8 are provided in a normal automobile. The power supply control device 7 supplies power to the back lamp 5 using the back lamp power supply line 6 only during a period in which the shift lever 8 is at the back (reverse) position, and performs control to turn on the back lamp 5. I have.

Returning to FIG. 1, the in-vehicle monitor control device 1 includes a control unit 101, a memory 102, a power supply detector 103 which detects the presence or absence of power supply on the back lamp power supply line 6 and notifies the control unit 101 of the power supply detector 103, a remote control device 3, an infrared receiver 104 such as a light-receiving diode for receiving a remote control signal pattern to be transmitted, a reception processor 105 for transmitting a remote control signal pattern received by the infrared receiver 104 to the controller 101, An infrared light emitter 106 such as a light emitting diode for transmitting a remote control signal pattern, a transmission processing unit 107 for driving the infrared light emitter 106 in response to an output signal from the control unit 101, and learning according to a user's switch knob setting position The mode switch 108 that outputs a value representing the mode / control mode, and the setting position of the user's switch knob A channel number display switch 109 for outputting an n value representing each of the numbers 1, 2, 3,... Here, the control unit 101 can be composed of, for example, a microcomputer and peripheral circuits necessary for its operation.

Here, when installing such an in-vehicle monitor system, a user connects the monitor camera 4 to a video input channel of the in-vehicle monitor device 2. When there are a plurality of video input channels such as video 1, video 2, video 3, and video n, connect to the video input channel of video n having the largest channel number. Specifically, the input terminal of the video input channel having the largest channel number and the output terminal of the monitor camera 4 are connected by a video signal transmission path such as a video cable. Also, when installing the on-vehicle monitor system, the user sets the position of the switch knob of the channel number display switch 109 to a position to output the same number as the number of video input channels.

Hereinafter, the operation of the vehicle-mounted monitor control device 1 will be described.

Here, the processing performed by the control unit 101 to operate the on-vehicle monitor control device 1 includes a learning mode processing and a control mode processing. The learning mode process is a process performed by the control unit 101 when the setting position of the switch knob of the mode switch 108 is set to a position for outputting a value indicating the learning mode. The learning mode process is a mode switch. This is a process performed by the control unit 101 when the setting position of the switch knob 108 is set to a position for outputting a position indicating the control mode.

First, the learning mode process will be described.

FIG. 3 shows a procedure of processing in the learning mode.

In this process, as shown, when the process is started, the process waits for a remote control signal pattern from the reception processing unit 105 (step 302). The pattern is stored in the memory 102 (step 303). Then, the process returns to step 301, and the above processing is repeated while the setting position of the switch knob of the mode switch 108 is set to the position for outputting the value indicating the learning mode.

Here, the user uses the learning mode process to make the in-vehicle monitor control device 1 learn the remote control signal pattern of the television / video switching operation. The TV / video switching operation refers to a TV / video switching remote control signal pattern transmitted by the infrared remote control device 3 in response to the pressing of the TV / video switching button provided on the infrared remote control device 3. Accordingly, every time the in-vehicle monitor device 2 receives a display image and a remote control signal pattern for television / video switching, (TV tuner output image-video 1 video input channel input image-video 2 video input channel input ,..., -Video n channel input image of video n-TV tuner output image). In the simplest case where there is only one video input channel, the in-vehicle monitor device 2 displays the display image and the TV tuner output image and video video each time a remote control signal pattern for television / video switching is received. The input channel is alternately switched with the input image.

Now, the user makes the in-vehicle monitor control device 1 learn the remote control signal pattern of such a television / video switching operation by the following operation. That is, first, the switch knob of the mode switch 108 is set to a position for outputting a value indicating the learning mode. Next, the infrared remote control device 3 is pointed at the on-vehicle monitor control device 1, and the TV / video switching button of the infrared remote control device 3 is depressed. Thus, the remote control signal pattern of the television / video switching operation is stored in the memory 102 of the vehicle-mounted monitor control device 1. Finally, the switch knob of the mode switch 108 is set to a position for outputting a value indicating the control mode.

Next, control mode processing will be described.

FIG. 4 shows a processing procedure in the control mode.

In this process, as shown in the figure, when the process is started, the detection result of the presence or absence of power supply on the back lamp power supply line 6 of the power supply detector 103 is monitored, and the power supply state on the back lamp power supply line 6 is turned off. When it is detected that the signal has changed from ON to ON (step 401), the remote control signal pattern stored in the memory 102 is read out and sent to the transmission processing unit 107. The process of transmitting light to the device 2 is repeated as many times as the number output by the channel number display switch 109 (step 402).

Thus, when the user shifts the shift lever 8 to the back (reverse) position to start the reverse, it is detected that the power supply state on the back lamp power supply line 6 has changed from off to on. The control unit 101 performs the number of times the channel number display switch 109 outputs the remote control signal pattern for television / video switching stored in the memory 102 in the learning mode process, that is, the in-vehicle monitor. Light is transmitted to the in-vehicle monitor device 2 as many times as the number of video input channels of the device 2. As described above, since the monitor camera 4 is connected to the video input channel having the highest channel number among the video input channels of the on-vehicle monitor device 2, this allows the TV tuner output image to be displayed before the start of reverse travel. The displayed image of the on-vehicle monitor device 2 is switched to an image of the monitor camera 4 showing the situation behind the vehicle.

Now, when the display image of the on-vehicle monitor device 2 is switched to the image of the monitor camera 4 in this way, the detection result of the presence or absence of power supply on the back lamp power supply line 6 of the power supply detector 103 is next. When it is detected that the power supply state on the back lamp power supply line 6 has changed from ON to OFF (step 403), the remote control signal pattern stored in the memory 102 is read out and transmitted to the transmission processing unit 107. Then, the remote control signal pattern is transmitted from the infrared emitting device 106 to the on-vehicle monitor device 2 once (step 404).

When the user finishes the reverse movement and operates the shift lever 8 from the back (reverse) position to another position, the power supply state on the back lamp power supply line 6 changes from on to off. Upon detecting this state change, the control unit 101 once transmits the television / video switching remote control signal pattern stored in the memory 102 in the learning mode process described above. Then, the in-vehicle monitor device 2 displaying the image of the video input channel having the largest channel number at this time, that is, the image of the monitor camera 4, switches the display image to the original TV tuner output image.

When the control unit 101 switches the display image of the on-vehicle monitor device 2 to the original TV tuner output image in this way, the control unit 101 returns to step 401 and repeats the above operation by switching the mode switch 108 This operation is repeated while the knob setting position is set to the position that outputs the value indicating the control mode.

As described above, the in-vehicle monitor device according to the present embodiment has been described.

By the way, in the above description, the in-vehicle monitor device 2 displays the output image of the TV tuner at the time of starting the backward movement. When using a navigation device or video player connected to the j video input channel to display output images, the number of video input channels is assumed to be n (n> j), and the number of n-j The position of the switch knob of the channel number display switch 109 may be set so as to output. As a result, the display of the in-vehicle monitor device 2 that has displayed the image input to the video input channel of the video j before the reverse travel is switched to the image of the monitor camera 4 when the reverse travel starts. However, in this case, since the control unit 101 cannot know the value of j, it cannot switch to the image to be input to the video input channel of the original video j at the end of the backward movement. It will switch to the tuner output image.

In the above embodiment, the monitor camera 4 may be used without being connected to the highest video number. In this case, the number of times of transmission of the remote control signal pattern for television / video switching necessary for switching the image displayed by the on-vehicle monitor device 2 to the image of the monitor camera 4 at the time of starting reverse movement is output. In order to set the position of the switch knob of the channel number display switch 109 and switch the display of the in-vehicle monitor device 2 to an image displayed by the in-vehicle monitor device 2 before the start of reverse movement by using a separately provided switch, What is necessary is just to specify the number of times of transmission of the remote control signal pattern for television / video switching which needs to be transmitted at the end of reverse travel. In this way, the user may use the on-board monitor device 2 at the start of the reverse movement, for example, displaying the output image of a navigation device or a video player connected to the video input channel of the video j. However, the display on the in-vehicle monitor device 2 can be switched to the image of the monitor camera 4 at the start of the reverse movement, and can be switched to the image input to the video input channel of the original video j at the end of the reverse movement.

The above embodiment can be similarly applied to a case where the monitor camera 4 is of a transmitter type, that is, a type in which an image is transmitted by radio waves so as to be received by a TV tuner.

In this case, the in-vehicle monitor control device 1 learns from the infrared remote control device 3 a remote control signal pattern that specifies a reception channel (eg, channel 7) of the TV tuner that receives the image of the monitor camera 4, What is necessary is just to make the in-vehicle monitor control device 1 transmit the learned remote control singing pattern at the time of starting the reverse movement.

In the above embodiment, a sensor for detecting an abnormality is further provided, and when the sensor detects an abnormality, the on-vehicle monitor control device 1 operates during the period of detecting the abnormality. A remote control signal pattern for turning on the power supply of the camera, and a video player connected to the monitor camera 4 is provided. 1 may transmit a remote control signal pattern of a video recorder instructing a recording operation of an image captured by the monitor camera 4 to the video recorder.

[0038]

[Effect of the invention]

 As described above, according to the present invention, the captured image of the monitor camera that captures the rear of the vehicle can be displayed on the in-vehicle monitor device when the vehicle moves backward without requiring user operation.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an on-vehicle monitor system according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing an example of arrangement of components of the vehicle-mounted monitor system according to the embodiment of the present invention;

FIG. 3 is a flowchart illustrating a procedure of a process in a learning mode according to the embodiment of the present invention.

FIG. 4 is a flowchart illustrating a procedure of a process in a control mode according to the embodiment of the present invention.

[Explanation of symbols]

1: on-board monitor control device, 2: on-board monitor device, 3: infrared remote control device, 4: monitor camera,
5; back lamp, 6; back lamp power supply line, 7; power supply control device, 8; shift lever, 101; control unit, 10
2, memory 103; power supply detector 104; infrared receiver 105; reception processing unit 106; infrared emitter 1
07: transmission processing unit, 108; mode switch, 109;
Channel number display switch

Claims (6)

[Utility model registration claims] 1. A monitor device having a plurality of image input channels, a monitor camera for photographing the rear of a vehicle, and a monitor control device, each of which is mounted on an automobile, wherein the monitor device is provided with a predetermined remote control. A monitor device that switches an image input channel to be displayed in response to receiving a control signal, wherein an image captured by the monitor camera is output to one image input channel of the monitor device, Detecting means for detecting a reverse state of the vehicle; storing means for storing the predetermined remote control signal; and the remote control signal stored in the storing means when the detecting means detects the start of reverse movement of the vehicle. The monitor so that the image input channel to be displayed by the monitor device is switched to the image input channel from which the image captured by the monitor camera is output. Vehicle monitor system characterized by having a remote control unit for transmitting the data unit. 2. The on-vehicle monitor system according to claim 1, wherein said detecting means detects a backward traveling state of said vehicle according to whether power is supplied to a rear illumination lamp of said vehicle. Monitor system. 3. The in-vehicle monitor system according to claim 1, wherein the monitor control device receives a remote control signal from an external device, and stores the received remote control signal as the predetermined remote control signal. An on-vehicle monitor system comprising a learning means for storing the information in a vehicle. 4. The on-vehicle monitor system according to claim 1, 2 or 3, wherein the remote control means stores the data stored in the storage means when the detection means detects the end of the backward movement of the vehicle. Remote control means for transmitting a remote control signal to the monitor device such that the image input channel to be displayed by the monitor device is switched to the image input channel that was to be displayed by the monitor device before the start of the reverse movement of the vehicle. An on-vehicle monitor system comprising: 5. The on-vehicle monitor system according to claim 1, further comprising: a receiving unit for receiving a designation of the number of times, wherein said remote control unit detects that the detecting unit has started the backward movement of the vehicle. Or when the detection means detects the end of the backward movement of the vehicle, the remote control signal stored in the storage means is transmitted to the monitor device the number of times that the reception means has received. On-board monitor system. 6. An on-vehicle monitor control device mounted on an automobile vehicle and controlling a monitor device mounted on the automobile vehicle, wherein a reverse traveling state of the vehicle is determined in accordance with whether power is supplied to a back lamp of the automobile vehicle. Detecting means for detecting; storage means for storing a remote control signal for causing the monitor device to switch a display channel; and the remote control stored in the storage means when the detecting means detects the start of backward movement of the vehicle. Remote control means for transmitting a signal to the monitor device.