JP3385624B2 - Navigation device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a navigation device for guiding a route of a moving body such as a vehicle.

[0002]

2. Description of the Related Art As an example of a conventional navigation device, map information recorded in a storage device such as a CD-ROM is used for a satellite-based positioning system (Global Position).
GP using ingSystem (hereinafter abbreviated as GPS)
There is one that searches and displays based on the current position obtained by the S receiver. A conventional navigation device will be described below.

FIG. 2 is a block diagram of a conventional navigation device. 1 is a GPS receiver for receiving signals from GPS satellites to detect side position information, and 2 is a CD-ROM for recording road maps, topographic maps and the like. A reproduction unit 3 selects a map information corresponding to the positioning information from the GPS receiver 1 from the CD-ROM reproduction unit 2 and converts it into a display signal. A control unit 4 displays a display signal from the control unit 3. The display.

In the conventional navigation device having the above-mentioned components, the current position is first determined by the side position signal of the GPS receiver 1, and then the map corresponding to the determined side position information is read from the CD-ROM 2. It was read out and displayed on the CRT display 4 together with a mark indicating the current position.

[0005]

However, in the above-described conventional configuration, the route to the destination is traced by relying on the line indicating the road drawn on the map on the CRT display 4, and at the branch point to pass through. Whether an intersection, a three-way intersection or a passing point is the correct route to the destination CRT
There is a problem that it is difficult to judge whether the traveling route is correct only by the map displayed on the display.

An object of the present invention is to provide a navigation device which solves the problems of the conventional example.

[0007]

In order to achieve the above object, a navigation device of the present invention includes a positioning device for detecting positioning information of a current position and a map information storage means for outputting prestored map information. A display device that displays the map information stored in the map information storage means and the positioning information detected by the positioning device as the current position, an image capturing device that captures the surrounding real scene, and a video signal captured by the image capturing device. a temporary storage unit that temporarily stores, brake mobile
A configuration including an input device that detects and inputs a pedal operation , and a storage unit that receives an input from the input device and reads a video signal from before the input from the temporary storage means and records the video signal together with the positioning information of the positioning device Has become.

[0008]

According to the present invention, with the above-described structure, the surrounding scenes such as intersections and trifurcations which are apt to be mistakenly run are recorded together with the positioning information measured by the GPS receiver. Searched by the local GPS positioning information by, and paired with the closest positioning information,
The video recorded during the previous run can be reproduced and displayed on the display device for confirmation.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A navigation device according to an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of an embodiment of the navigation device of the present invention.
In the figure, reference numerals 1 to 4 indicate the same functions as those of the conventional example of FIG. Reference numeral 5 denotes an image pickup device for picking up information about surrounding scenes at a passing point, and 6
Is an input device for sending a signal for driving the start of recording of the photographing output, 7 is a storage unit for recording the surrounding environment information of the vehicle together with the positioning information of the GPS receiver 1, and 8 is a record that can retrieve the information of the storage unit 7. A recording device for recording on a medium.

The above-mentioned constituent elements will be described. Next, the mutual relation and operation of the constituent elements will be described. First, the surrounding scene of a place where it is easy to make a mistake in traveling such as an intersection or a parting road while the vehicle is traveling is photographed by the imaging device 5 by a drive signal input from the input device 6, and a pair of information is stored in the storage unit 7 together with positioning information from the GPS receiver. And record.

In this way, the surrounding scene while traveling is recorded in the recording unit 7 together with the GPS positioning information, and the GPS information recorded therein is measured by the GPS receiver 1 at the local point while traveling on the road. By searching based on the information, the scene information stored as a pair with the positioning information closest to the GPS positioning information at the local point is reproduced, and the CD-ROM player 2 (map) is displayed on the CRT display 4 (display device). The scene around the local point is displayed together with the map information in the information storage means), and it is determined whether or not the running point is a correct route to the destination based on the reproduced scene. At this time, the display on the CRT display 4 may be a multi-screen, or the map information and the scene screen may be switched and displayed as necessary. The recording medium of the storage unit 7 may be selected from semiconductor memory, floppy disk, video tape, optical disk, etc., as required.

Further, the information recorded in the storage unit 7 can be transferred to the recording unit 8 and transferred to a medium such as a floppy disk, a video tape, a magneto-optical disk, and the data can be passed to another navigation device. With this data, even if the road is the first to pass, the actual scene information can be displayed by inputting this information medium.

The following device can be used as the input device 6. (1) Input by the output signal of the rotation angle detection device that detects the handle rotation angle. In the route to the destination, it is easy to misidentify the intersection, which is a branch point, or a three-way intersection.
Therefore, when the steering wheel is rotated at an intersection or a three-way intersection, an input signal for starting recording is issued. However, since the steering wheel is rotated a little during general driving, it should be operated when the rotation angle exceeds a preset angle. (2) Input by depressing the brake pedal. At traffic signals, railroad crossings, and temporary stop areas, deceleration is performed and brake operation is performed, so this is detected and input. Traffic lights, level crossings, etc. are useful as elements for determining the route. (3) Gear down is detected and input. Since the speed is reduced at intersections, traffic lights, railroad crossings, and temporary stop areas, the shift lever is used to detect the gear down or change gears of an automatic vehicle and input. (4) The gyro device detects changes in the acceleration and angular acceleration of the vehicle, and detects and inputs the acceleration that occurs when passing through an intersection, a corner, or the like. (5) Input by voice recognition in order to input according to the operator's will. Use the voice of the driver or a specific person by setting it to react only to the voice registered in advance.
This avoids reacting to the voices of other passengers, the car stereo or the radio. (6) Similarly, a switch is used as an input device for inputting according to the intention of the operator. While driving, operate the switch as necessary to input and start recording.

The above-mentioned input methods may be carried out individually or in combination of plural kinds.

The following methods are possible for the recording method. (1) Always photograph and record a scene while the vehicle is traveling. (2) While the vehicle is traveling, the scene is always photographed, but is not recorded, but is recorded only for the first predetermined time in response to a drive start signal from the input device 6. (3) The scene is constantly input to the storage unit 7 while traveling, and is constantly accumulated in the temporary memory for the second predetermined time. Recording to the storage unit 7 is performed by a signal input from the input device 6. The recording is performed for the first predetermined time period including the past video for the second predetermined time period immediately before. As a result, the scene from the state of entering the passing point before the operation of the input device 6 can be recorded. (4) During traveling, the scene input from the imaging device 5 is started to be recorded in the storage unit when a signal from the input device 6 is received, thereby reducing the recording capacity.

The above recording methods (1) to (4) can be carried out individually or in combination.

The image pickup device 5 can also perform the following. (1) The scene information is extracted as a still image. As a result, the storage capacity of the storage unit 7 can be reduced. (2) The scene information is extracted as a moving image. The vehicle is running,
Since vibration occurs, it is preferable to suppress the vibration and blurring of the video image by using a known technique such as a gyro sensor when fixing to the vehicle. (3) Infrared flash is emitted to capture an image. Although it is necessary to hit the flash to input the scene information while driving at night, it is generally dazzling and extremely dangerous for oncoming vehicles and passersby. Therefore, the danger is avoided by emitting an infrared light flash. Therefore, the image pickup device 5 is provided with a function of converting infrared light into visible light in the case of infrared light flash emission.

Although the case of a vehicle has been described above, the moving body is not limited to a vehicle, and if necessary, a ship,
It can be used for other moving objects such as aircraft.

[0019]

As described above, in the navigation device of the present invention, the scene information preliminarily photographed and stored in the storage unit is searched for by the positioning information of the GPS receiver corresponding to the passing position of the moving body and the map is searched. By providing the function of displaying on the display device together with the map information output from the information storage means, it is possible to accurately determine the passing route and to accurately guide the route of the moving body.

[Brief description of drawings]

FIG. 1 is a block diagram of a navigation device according to an embodiment of the present invention.

FIG. 2 is a block diagram of a conventional navigation device.

[Explanation of symbols]

1 GPS receiver 2 CD-ROM player (map information storage means) 3 control unit 4 CRT display (display device) 5 Imaging device 6 Input device 7 memory 8 recording devices

Front page continuation (58) Fields surveyed (Int.Cl. ⁷ , DB name) G01L 21/00 G08G 1/0969 G09B 29/10

Claims (5)

(57) [Claims] 1. A positioning device for detecting positioning information of a current position, map information storage means for outputting map information stored in advance, map information stored in the map information storage means and the positioning device are detected. A display device that displays the positioning information as the current position, an image capturing device that captures the surrounding real scene, a temporary storage unit that temporarily stores the image signal captured by the image capturing device, and a brake pedal operation of the moving body that is detected. A navigation comprising: an input device for inputting; and a storage unit for receiving an input from the input device and reading out a video signal from before the input from the temporary storage means and recording it together with positioning information of the positioning device. apparatus. 2. A positioning device for detecting positioning information of a current position, a map information storage unit for outputting map information stored in advance, a map information stored in the map information storage unit and the positioning device are detected. A display device that displays the positioning information as the current position, an imaging device that captures the surrounding real scene, a temporary storage unit that temporarily stores the video signal captured by the imaging device, and a gear down operation of the moving body is detected and input. And a storage unit that receives an input from the input device and reads a video signal from before the input from the temporary storage unit and records the video signal together with the positioning information of the positioning device. . 3. A positioning device for detecting positioning information of a current position, a map information storage unit for outputting map information stored in advance, a map information stored in the map information storage unit and the positioning device are detected. A display device that displays the positioning information as a current position, an imaging device that captures the surrounding real scene, a temporary storage unit that temporarily stores a video signal captured by the imaging device, and an acceleration change of a moving body that is detected and input. And a storage unit that receives an input from the input device and reads a video signal from before the input from the temporary storage unit and records the video signal together with the positioning information of the positioning device. . 4. The storage device is searched based on the current positioning information from the positioning device, and the display device displays a video signal of the positioning information closest to the current position.
The navigation device according to claim 1 . 5. The navigation device according to claim 1 , further comprising a recording device that records the video signal and the positioning information recorded in the storage unit in an external storage medium.