JPH08265611A - In-vehicle monitoring device - Google Patents

Abstract

(57) [Summary] [Purpose] An in-vehicle monitoring device has both functions for rearward monitoring and in-vehicle monitoring. [Configuration] A changeover control circuit 24, an image processing device 25, and a changeover switch 26 are arranged in a direction taken by the image pickup camera 15 when the driver detection sensor 23 detects that the driver 22 is sitting. When the driver detection sensor 23 does not detect that the driver 22 is sitting in the driver's seat 17, the image captured by the imaging camera 15 is displayed on the in-vehicle monitor 19 in this state. First, the image capturing camera 15 directs the image capturing direction into the vehicle interior 12, and the video image captured by the image capturing camera 15 in this state is recorded in the VTR 21. As a result, the vehicle-mounted monitoring device can have both functions for rearward monitoring and for vehicle interior monitoring.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle-mounted monitoring device for confirming the safety of the rear of a vehicle, and more particularly to a vehicle-mounted monitoring device in which an image pickup camera can be used more effectively.

[0002]

2. Description of the Related Art Conventionally, a vehicle-mounted monitoring device for confirming the safety of the rear of a vehicle has been put into practical use.

FIG. 4 is a perspective view showing a vehicle equipped with such a conventional vehicle-mounted monitoring device.

In FIG. 4, reference numeral 51 denotes a vehicle (four-wheeled passenger vehicle), and the trunk room 5 on the rear side of the vehicle 51.
The image pickup camera 53 is provided inside the camera optical system portion 54.
It is installed with the rear facing. Trunk lid 5
5, a window 56 is provided at a position facing the camera optical system 54, and a transparent member 57 is fitted into the window 56. With this window portion 56, the imaging camera 53
Captures the rear of the vehicle 51 and outputs a video signal to the relay cable 58. The relay cable 58 passes under the floor of the vehicle 51 and is connected to the monitor 60 of the console box 59.

With such a conventional vehicle-mounted monitoring device,
The driver can check the image behind the vehicle captured by the image capturing camera 53 on the monitor 60 of the console box 59. However, the imaging camera 53 can perform only the function of rearward monitoring and cannot be said to have a sufficient function.

[0006]

In the conventional vehicle-mounted monitoring device, the image pickup camera can perform only the function of rearward monitoring, and cannot be said to have a sufficient function.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to eliminate the above-mentioned problems and provide a vehicle-mounted monitoring device having both functions of rearward monitoring and in-vehicle monitoring.

[0008]

An on-vehicle monitoring device according to the present invention according to claim 1 is installed on a rear glass side of a vehicle interior ceiling of a vehicle so as to be rotatable in a direction of imaging around a column. Image pickup camera, an in-vehicle monitor provided in front of the driver's seat of the vehicle, a recording device installed in the vehicle, and a driver for detecting whether or not the driver is sitting in the driver's seat of the vehicle. When a driver is installed in the vehicle and the detection sensor and the driver detection sensor detect that the driver is sitting, the imaging camera directs the image to the rear of the vehicle, and the imaging camera captures the image in this state. When the driver detection sensor does not detect that the driver is sitting, the image captured by the image capturing camera is directed to the passenger compartment, and the image is captured by the image capturing camera in this state. Recorded video Characterized by comprising a control means for recording the location.

According to a second aspect of the present invention, there is provided a vehicle-mounted monitoring device, which is installed inside the vehicle and which images the rear of the vehicle.
An image pickup camera, a second image pickup camera installed in the vehicle for taking an image of the interior of the vehicle, an in-vehicle monitor provided in front of a driver's seat of the vehicle, and a recording device installed in the vehicle, A driver detection sensor that detects whether or not a driver is sitting in the driver's seat of the vehicle, and is installed in the vehicle,
When the driver detection sensor detects that the driver is sitting, the image captured by the first imaging camera is displayed on the in-vehicle monitor, and the driver detection sensor is seated by the driver. Is not detected, the second
And a control unit for recording the image captured by the image capturing camera in the recording device.

[0010]

According to the first aspect of the present invention, when the control means detects that the driver is seated, the control means directs the image pickup camera to the rear side of the vehicle. When the image captured by the image capturing camera is displayed on the in-vehicle monitor, and the driver detection sensor does not detect that the driver is sitting in the driver's seat, the direction in which the image capturing camera images is directed to the vehicle interior, Since the image captured by the imaging camera is recorded in the recording device in this state, the vehicle-mounted monitoring device can be provided with both functions for rearward monitoring and for in-vehicle monitoring.

According to the second aspect of the invention, when the control means detects that the driver is seated, the control means displays the video imaged by the first imaging camera on the in-vehicle monitor. When the driver detection sensor does not detect that the driver is sitting, the image captured by the second image capturing camera is recorded in the recording device. It can have both functions for monitoring.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is an explanatory view showing an embodiment of a vehicle-mounted monitoring device according to the present invention.

In FIG. 1, reference numeral 11 is a vehicle (in this embodiment, a four-wheeled passenger vehicle), and a vehicle compartment 1 of this vehicle 11
An imaging camera 15 is installed on the rear glass 14 side of the ceiling portion 13 in 2 such that the imaging camera 15 can rotate in the direction of imaging around the support 16.

An in-vehicle monitor 19 is provided in the console box 18 on the front side of the driver's seat 17 of the vehicle 11.

Inside the trunk room 20 on the rear side of the vehicle 11, a VTR 21 serving as a recording device is provided.

The driver seat 17 is provided with a driver detecting sensor 23 for detecting whether or not the driver 22 is sitting. In this case, the driver detection sensor 23 is configured to detect whether or not the driver 22 is sitting by the pressure of the weight of the driver 22.

Further, in the vehicle 11, a switching control circuit 24 is provided.
An image processing device 25 and a changeover switch 26 are provided.

The switching control circuit 24 includes the driver detection sensor 2
3 detects that the driver 22 is sitting, the imaging camera 15 directs the image to the rear of the vehicle 11, and the driver detection sensor 23 detects that the driver 22 is sitting in the driver's seat 17. Imaging camera 1 if not detected
The direction in which the image is picked up by the vehicle 5 is directed to the inside of the vehicle compartment 12.

The image pickup camera 15 outputs the image signal obtained by the image pickup to the image processing device 25 through the relay cable 27.

The image processing device 25 performs appropriate image processing (for example, noise removal or contrast adjustment) on the video signal from the image pickup camera 15, and guides it to the common terminal C1 of the changeover switch 26.

The changeover switch 26 is used for the driver detection sensor 2
3 detects that the driver 22 is sitting, selects the first output terminal A1 and connects it to the common terminal C1,
When the driver detection sensor 23 does not detect that the driver 22 is sitting in the driver's seat 17, the second output terminal A
2 is selected and connected to the common terminal C1.

The first output terminal A1 of the changeover switch 26
Is connected to the video signal input terminal of the in-vehicle monitor 19 via the relay cable 28. The second output terminal A2 of the changeover switch 26 is connected to the video signal input terminal of the VTR 21 via the relay cable 29.

When the video signal is supplied to the video signal input terminal of the in-vehicle monitor 19, the screen display is turned on and the supplied video signal is displayed on the screen. Further, when the video signal is not supplied to the video signal input terminal of the in-vehicle monitor 19, the screen display is turned off.

When the video signal is supplied to the video signal input terminal of the VTR 21, recording on the magnetic tape is turned on and the supplied video signal is recorded on the magnetic tape. Further, in the VTR 21, when the video signal is not supplied to its video signal input terminal, the recording on the magnetic tape is turned off.

With such a connection, the switching control circuit 24
When the driver detection sensor 23 detects that the driver 22 is sitting, the image processing device 25 and the changeover switch 26 direct the image capturing direction of the image capturing camera 15 toward the rear of the vehicle, and in this state. When the driver detection sensor 23 does not detect that the driver is sitting in the driver's seat 17, the direction in which the imaging camera 15 takes an image is displayed on the in-vehicle monitor 19 by displaying the video imaged by the imaging camera 15 in FIG. To the inside of the vehicle compartment 12 and constitutes a control means for recording the video imaged by the imaging camera 15 in the VTR 21 in this state.

In such a vehicle-mounted monitoring device, when the driver 22 is sitting in the driver's seat 17, the driver detection sensor 23 detects that the driver 22 is sitting, and the switching control circuit 24 The direction in which the image capturing camera 15 captures images is directed toward the rear of the vehicle 11, and the changeover switch 26 selects the first output terminal A1 and connects it to the common terminal C1. As a result, the in-vehicle monitor 19 displays the image behind the vehicle captured by the imaging camera 15. As a result, the driver 22
Can confirm the rear of the vehicle. On the other hand, VTR2
In No. 1, since the video signal is not supplied to the video signal input terminal, the recording on the magnetic tape is turned off.

FIG. 2 is an explanatory view for explaining the operation of the vehicle-mounted monitoring device of FIG. 1 when the driver is not sitting in the driver's seat.

As shown in FIG. 2, when the driver is not sitting in the driver's seat 17, the driver detection sensor 23 detects that the driver is not seated, and the switching control circuit 24 causes the image pickup camera 15 to operate. The changeover switch 26 selects the second output terminal A2 and connects it to the common terminal C1 by directing the image capturing direction of the vehicle inside the vehicle interior 12. As a result, the in-vehicle monitor 19
The screen display is turned off, the recording on the magnetic tape is turned on, and the VTR 21 records the video signal of the inside of the vehicle interior 12 on the magnetic tape. Thus, if a thief enters the passenger compartment 12 while the driver is absent, the thief can be imaged and stored in the VTR 21.

According to such an embodiment, the on-vehicle monitoring device can be provided with both functions of rearward monitoring and in-vehicle monitoring when the driver is absent. In addition to rearward checking, vehicle theft prevention and
It can be useful for investigating the criminal after the vehicle is stolen and left behind.

FIG. 3 is a block diagram showing another embodiment of the vehicle-mounted monitoring device according to the present invention.

In FIG. 3, an image pickup camera 31 for the vehicle rear, which is a first image pickup camera, is installed in the vehicle to image the vehicle rear side, and the imaged image signal is input to a first input of a changeover switch 33. Lead to terminal A1.

The vehicle interior image pickup camera 32, which is the first image pickup camera, is installed in the vehicle, takes an image of the vehicle interior, and guides the imaged image signal to the second input terminal A2 of the changeover switch 33. . Common terminal C of changeover switch 33
1 is connected to the input terminal of the image processing device 36.

The image processing device 36 performs appropriate image processing on the video signal from the common terminal C1 of the changeover switch 33 and guides it to the common terminal C11 of the changeover switch 37.

On the other hand, the driver detection sensor 34 detects whether or not the driver 22 is sitting in the driver's seat.

The switching control circuit 35 detects whether or not the driver 22 is sitting by the pressure due to the weight of the driver,
When the driver detection sensor 34 detects that the driver is sitting, the changeover switch 33 is connected to the first input terminal A1 and the common terminal C1, and the changeover switch 3 is connected.
7 is connected to the first output terminal A11 and the common terminal C11. Further, the switching control circuit 35 includes the driver detection sensor 3
When 4 detects that the driver is not sitting, the changeover switch 33 is connected to the second input terminal A2 and the common terminal C1, and the changeover switch 37 is connected to the second output terminal A12 and the common terminal C11. Let

The changeover switch 37 has a first output terminal A1.
1 is connected to the video signal input terminal of the in-vehicle monitor 38 via a relay cable, and the second output terminal A12 is connected to the video signal input terminal of the VTR 39 via another relay cable.

The on-vehicle monitor 38 is provided on the front side of the driver's seat, and when a video signal is supplied to its video signal input terminal, the screen display is turned on and the supplied video signal is displayed on the screen. Further, when the video signal is not supplied to the video signal input terminal of the in-vehicle monitor 38, the screen display is turned off.

The VTR 39 is installed in a vehicle, and when a video signal is supplied to its video signal input terminal, recording on the magnetic tape is turned on and the supplied video signal is recorded on the magnetic tape. Further, in the VTR 39, when the video signal is not supplied to the video signal input terminal, the recording on the magnetic tape is turned off.

As a result, the changeover switch 33, the driver detection sensor 34, the changeover control circuit 35, the image processing device 36 and the changeover switch 37 are operated when the driver detection sensor 34 detects that the driver is sitting. The image captured by the vehicle interior imaging camera 32 is displayed when the vehicle-mounted monitor 38 displays the image captured by the vehicle rear imaging camera 31 and the driver detection sensor 34 detects that the driver is not sitting. Is configured in the VTR 39.

According to such an embodiment, when the driver is sitting in the driver's seat, the image captured by the vehicle rear-view imaging camera 31 is displayed on the in-vehicle monitor 38 so that the driver is sitting in the driver's seat. When it is detected that there is no such image, the VTR 39 stores the video imaged by the vehicle interior imaging camera 32. Therefore, as in the embodiment of FIG. In addition to having the function of monitoring the inside of the vehicle, the same effects as those of the embodiment of FIG. 1 are obtained, and the vehicle rear-side imaging camera 31 and the vehicle interior imaging camera 32 do not rotate in the imaging direction. Since it is good, these image pickup cameras can be easily hidden on the ceiling of the vehicle or the like, and it is possible to prevent a thief from destroying the camera or VTR.

Although the VTR is used as the recording device for recording the video signal in the embodiment shown in FIGS. 1 to 3, another video recording device, for example, a device for recording the video signal on the magnetic disk is also used. May be. Further, in the embodiment shown in FIGS. 1 to 3, the driver detection sensor 23 detects whether or not the driver 22 is sitting by the pressure due to the weight of the driver 22, but other detection is performed. A method, for example, an infrared active distance measuring device may detect whether the driver 22 is sitting.

[0043]

As described above, according to the present invention, the vehicle-mounted monitoring device can be provided with both functions for rearward monitoring and in-vehicle monitoring. Therefore, it can be used to prevent theft of the vehicle and to investigate the criminal after the vehicle is stolen and the vehicle is abandoned.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing an embodiment of a vehicle-mounted monitoring device according to the present invention.

FIG. 2 is an explanatory diagram for explaining the operation of the vehicle-mounted monitoring device of FIG. 1 when the driver is not sitting in the driver's seat.

FIG. 3 is a block diagram showing another embodiment of the vehicle-mounted monitoring device according to the present invention.

FIG. 4 is a perspective view showing a vehicle equipped with a conventional vehicle-mounted monitoring device.

[Explanation of symbols]

 11 Vehicle 12 Cabin 13 Ceiling 14 Rear Glass 15 Imaging Camera 16 Support 17 Driver's Seat 19 In-vehicle Monitor 21 VTR 22 Driver 23 Driver Detection Sensor 24 Switching Control Circuit 25 Image Processing Device 26 Change Switch

Claims (2)

[Claims] 1. An imaging camera installed on a rear glass side of a vehicle interior ceiling of a vehicle so as to be rotatable about an image of a column, and an in-vehicle monitor provided on a front side of a driver's seat of the vehicle. A recording device installed in the vehicle; a driver detection sensor for detecting whether or not a driver is sitting in the driver's seat of the vehicle; and a driver detection sensor installed in the vehicle for driving the driver detection sensor. When it is detected that a person is sitting, the direction taken by the imaging camera is directed to the rear of the vehicle, and in this state, the image taken by the imaging camera is displayed on the vehicle-mounted monitor, and the driver detection sensor is used by the driver. If it does not detect that the sitting
An in-vehicle monitoring device, comprising: a control unit that causes a recording device to record an image captured by the imaging camera in this state. 2. A first imaging camera installed inside the vehicle for imaging the rear of the vehicle, a second imaging camera installed inside the vehicle for imaging the interior of the vehicle, and a front side of a driver's seat of the vehicle. An in-vehicle monitor provided in the vehicle, a recording device installed in the vehicle, a driver detection sensor for detecting whether or not a driver is sitting in the driver's seat of the vehicle, installed in the vehicle, When the driver detection sensor detects that the driver is sitting, the image captured by the first imaging camera is displayed on the in-vehicle monitor, and the driver detection sensor indicates that the driver is sitting. An in-vehicle monitoring device, comprising: a control unit that causes a recording device to record an image captured by the second image capturing camera when it is not detected.