JP2010089705A - Rear-view mirror with car navigation and camera image - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide safe and comfortable driving operation with display of car navigation during travel of a vehicle and display of a video camera for monitoring safety without moving a face or an eye line frequently, nor taking hands off a steering wheel. <P>SOLUTION: Both of a car navigation display screen part 11 and a video camera image display part 24 for monitoring the outside of the vehicle are integrated to form a camera image display 3 with car navigation, and it is put over an indoor rear-view mirror, and fixed. Moreover, switches for adjusting a display image are configured to be operated on the backside of the steering wheel, This allows view of car navigation and the video camera image only by moving the eye line slightly upward with the face directed to the front, and eliminates the need for frequently taking the hands off the steering wheel for adjusting the image. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

The present invention relates to a driving assistance device in an automobile interior, and more particularly to an outside scene imaging display device using a car navigation (car navigation) and a digital camera.

In recent years, car navigation (car navigation) devices have become widespread as assistance devices for driving automobiles, and it has become convenient because it is possible to quickly obtain a map of a sending destination, a vehicle position information display, and traffic information by voice and display. . On the other hand, all automobiles have rear and rear side mirrors that show the position of other vehicles behind the vehicle while driving outside.
Bumper mirrors are always available. Among them, a digital camera image display device is mounted around the driver's seat of large trailers and long-distance buses for monitoring the rear of the vehicle body during back travel.

The car navigation device is generally stored at a dashboard position diagonally in front of the driver's seat, and the display board is also attached to the electronic device body. As a device that supports driving, not only a map but also text information is displayed, a traveling instruction by voice is given during traveling, and traffic information is also taken in for convenience. On the other hand, the car navigation system has various functions, but these operations are performed with the switches on the electronic device body or with the remote switch box. In addition, monitoring of the situation outside the vehicle using digital camera images has been used to eliminate driving blind spots of buses and trailer trucks, as a small and inexpensive CCD camera has been used.

The image display device is used for the purpose of monitoring the field of view of the vehicle after measurement on a bus or a large truck. It is extremely useful and useful for safe driving at bus stops where passengers waiting for the arrival of buses hang out, and at workplaces that repeatedly move forward and backward in order to change the vehicle position at the luggage collection point. Patent Document 1 is such an apparatus, and describes a structure in which a camera is attached to a stay of a rearview mirror provided outside the driver's seat left window.
Patent Document 2 discloses a technique of using an infrared camera with an infrared lamp illumination that is particularly well-lighted at night, and Patent Document 3 also arranges an infrared video camera in a vehicle rearward direction and outputs its output video. A display device has been proposed in which an image is placed on the driver's seat.
JP 2002-172978 A JP 2004-156787 A JP-A-2005-014810 These video image display devices are placed on the main unit stored in the dashboard of the driver's seat or separated from the display unit and placed on the base of the dashboard or the lower side of the windshield. is doing.

A car navigation display device that allows you to see at a glance where you are and where you are in the car while driving is very convenient, but its display is built in the vicinity of the dashboard diagonally below the driver. In the case of the model, it is installed near the base on the lower side of the windshield. The driver's line of sight while driving is mostly looking through the front windshield in front, sometimes looking at the front of the car to watch and the rear view mirrors on the side of the driver's cab and traffic instruments, to check the vehicle behind the vehicle In order to see with an indoor rearview mirror, you will look diagonally upward. When looking at the car navigation display next to the dashboard and when looking at the rearview mirror or the front, the position of the line of sight is different, so it is necessary to raise and lower the face and move the line of sight. The same thing is accompanied by the movement of the line of sight similar to that of a car navigation display when viewing a display for monitoring outside the vehicle by a video camera. For the above reasons, it is not preferable to install them in the vicinity of the dashboard in order to place a car navigation system and a video camera display device in the vehicle for comfortable driving and device operation.

Various switch operations are indispensable for optimizing the function of the screen for both car navigation systems and video camera images. Car navigation systems often have a remote switch box. In order to make a video camera not only a single screen but also a front / rear / right / left screen into a single concept or a combined screen, it is necessary to frequently perform a switch operation of the switching operation. It is troublesome to operate the remote switch by releasing the handle while driving or operating the switch of the embedded device, which is not preferable from the viewpoint of safety.

To place video cameras at several locations in the car, combine the images and perform adjustment to display the optimum image quality, all image signals are concentrated near the display. At that time, the camera and the signal control unit are separated from each other by 3 to 5 m or more, and a cable is used to transfer the image signal therebetween. As various electronic devices are installed in cars, the number of cords and wires connected to them will increase. I want to hide cables and other cords in the car, especially around the driver's seat.

The purpose of this patent is to integrate a car navigation display device and a video camera video display device for a scene outside the vehicle, which is a very convenient vehicle driving support system, and simply attach the integrated device to the indoor rearview mirror. It is in.
The image adjustment switch operation of the car navigation system or the video camera uses switches provided on the back side of the handle bar. By doing this, the image display unit, which has been a problem in the past, is located near the dashboard, so that the eyes were often faced down, but the car navigation and video camera just by shifting the eyes slightly while keeping the face facing the front You will be able to see the video, and you won't have to let go of the handle to adjust the image.

Use wireless transmission to keep the camera and device body away from noise. By doing so, the video signal code in the vehicle is not routed.

In the rear vehicle monitoring of the video camera, an image in the infrared region can be seen by providing a filter function to the lens device.

Both the car navigation display and the video camera display are useful as individual devices, but if they are used at the same time, the line of sight must be changed each time, which is inconvenient for driving. In this patent, the display unit is integrated in order to use both video displays simultaneously. This frees the driver from looking at the side mirrors, indoor rearview mirrors, and sending instruments, and frequently looking around the car navigation screen and camera monitoring display on the sideboard so that the driver can drive safely and relaxedly. Become. In addition, since two display devices are gathered in one place and the installation place is placed on the indoor rear-view mirror that has been used in the past, it can be kept in a clean room without taking the place around the cab.

Similarly, the device operation switches of both devices can be operated on the back side of the handle that the driver is always grasping, so it is easy to operate, and you can relax without touching the device switch on the dashboard by moving your hand away from the handle. Driving in a posture will improve safety.

The video display by the video camera can monitor the outside of the vehicle, which is the blind spot of the driver, so safety is increased, and since the camera video is transferred by RF radio, the wire cord is not routed and a clear image without noise is obtained. can get.
An image in the infrared region can be obtained by giving a slight function to the optical components around the lens of the video camera. This effect makes it possible to clearly see the rear vehicle and the like far away in the daytime, reduces the obstruction of the strong glare of visible light at night, and makes it easier to see the image of the dark part.

Both car navigation systems and wireless video camera wireless transmission technology have already been commercialized, and display components can be easily obtained in any shape. Also, an auxiliary rear-view mirror that is slightly larger than the conventional rear-view mirror is commercially available. By using these commercially available technologies as they are, a camera image display device with a car navigation system can be produced, and by simply attaching it to the rearview mirror, the production time and production cost can be reduced.

Examples of specific prototypes are described below. FIG. 1 is a diagram of the camera image display device 3 with a car navigation in which the car navigation display unit 4 and the video camera display unit 5 are integrated. In the embodiment implemented by using the present invention, a commercially available auxiliary rearview mirror (80 x 250 x 8) is used, and a car navigation display unit and a video camera display unit (made by LCD) are mounted in the case. It was.
The video camera display unit 5 may display an image of the first camera 21 that captures an external scene, or a combination of the images of the second camera 22 or the third camera 23 displayed on the display screen. You can also

FIG. 2 shows a device layout diagram for sending signals and the like to the camera image display device 3 with a car navigation system. The main part 1 of the car navigation system was stored in the dashboard, and function switching and screen control switches 4 were attached to the back of the handle. The switches 4 and the main body 1 are connected by a cord 6. The image display unit 11 in the main body 1 and the camera image display device 3 with a car navigation system is connected by a cord 5, and the connection is made from the dashboard, through the metal window frame of the vehicle body, through the ceiling, and attached to the position of the indoor rearview mirror. Connected to the display device 3.

The main body 2 of the video camera image pickup device is also housed in the dashboard in the same manner as the car navigation system, and is connected to the function switching and screen control switches 4 attached to the back side of the handle by a cord 6. The image display unit 24 in the camera image pickup device body 2 and the camera image display device 3 with a car navigation system are connected by a cord 5, and like the signal transmission of the car navigation system, the cord 5 passes through the metal window frame of the vehicle body from the dashboard. It passes through the back of the ceiling and is connected to the display device 3 attached to the position of the indoor rearview mirror.

Video camera 21, 22, 23, 24 that captures scenes outside the vehicle for wireless monitoring and transmits the images wirelessly. Positions that reflect the right rear of the vehicle body, positions that reflect the left rear, and positions that directly below the rear of the vehicle body. It was placed in a position to reflect the back.
The wireless signal is received by the main unit 2 on the dashboard, and a screen after the desired camera selection, screen combination, and screen adjustment is displayed on the display unit 11.
Driving a vehicle equipped with the invention of the present patent is comfortable and safe without being bothered by monitoring and operation of equipment.

This patent allows you to easily drive the map display without moving your eyes and speaking your hand from the steering wheel when you travel to an unguided destination with a car navigation system. Useful. In addition, the driver can monitor the area where the blind spot of the car is captured by the imaging of the vehicle, so that safe work can be performed. In particular, it is possible to perform safe work when monitoring cameras on buses, trailer cars, forklifts that are used for loading luggage, and luggage tow trucks in stations, which increases industrial convenience.

Overview of camera image display device with car navigation system Arrangement of onboard car navigation camera image display device electronic equipment

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Car navigation system body 2 ... Video camera imaging device body 3 ... Camera image display device with car navigation system 4 ... Display image adjustment switch 5 ... Display signal transmission code 6 ... Control code 7 between display screen adjustment switch and main body ... Hook 11 ... Car navigation display screen part 24 ... Camera image display parts 21, 22, 23, 24 ... Wireless video camera

Claims (6)

A camera image display device with a car navigation system in which a video device that displays a scene outside the vehicle on the right half and a car navigation display device on the left half are integrated at the position of an indoor rearview mirror in the driver's seat of the car. The camera image display device with a car navigation system according to claim 1, wherein imaging of video cameras attached to a plurality of locations outside the vehicle is transferred into the vehicle by wireless radio transmission. The camera image can be displayed by displaying a single camera image on the entire screen, dividing the display section to display multiple camera images simultaneously, or displaying any combination of camera images at the same time. Item 1. A camera image display device with a car navigation system according to Item 1. The camera image display device with a car navigation system according to claim 1, wherein a non-reflective coating for transmitting infrared rays is applied to a lens portion of the camera and a dust-proof transparent plate 2. The camera image display with car navigation according to claim 1, wherein switching of various function displays of car navigation and various screen operations of external camera images are performed by switches provided on the back side of the driver's handlebar. apparatus. The code gland that transmits a signal from a car navigation main unit, a camera video main unit, and a screen display power source is drawn from the ceiling board side above the indoor rearview mirror. 1. A camera image display device with a car navigation system.