JPH0571868U - In-vehicle navigation device - Google Patents

Abstract

(57) [Summary] [Purpose] The current position can be confirmed more easily by comparing the position information determined by the navigation system with the surrounding scenery that the passengers of the car see with their own eyes. To do. In addition, by displaying the direction of a tall building, it is possible to guide the tourist attraction. [Configuration] An in-vehicle navigation device configured to display the position of a vehicle on a map and to display the presence of a designated target object in a designated range on the periphery of the map.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a map display device used in a car navigation device or the like, and more particularly to confirmation of the current position and guide display of a building.

[0002]

[Prior Art]

 Conventionally, a map display device used in a navigation device has a configuration in which the current position information read from an external sensor is used to read the map information from a map information storage medium such as a CD-ROM and display the map information on the display unit. ing.

[0003]

[Problems to be solved by the device]

 In conventional navigation systems, the display is generally small, so it is difficult to confirm the current position, and it is not possible to use targets such as tall buildings and mountains outside the display screen for position confirmation. there were.

[0004]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention displays the existence of a target object such as a tall building or mountain outside the map display screen around the screen, and compares it with a target object that a passenger can see in the car window. By this, the position can be confirmed more accurately.

[0005]

【Example】

 The operation of the vehicle navigation device according to the present invention will be described with reference to FIGS.

FIG. 1 shows a vehicle navigation device of the present invention. In the figure, 1 is various sensors attached to the vehicle, such as a geomagnetic sensor and a gyro compass. Reference numeral 2 is a position detecting device for detecting the absolute position of the vehicle, such as a sign post, a beacon, and a GPS receiver.

Reference numeral 3 denotes a map data recording device that records a map for displaying the vehicle position, various service information, and enlarged display map data of branch roads and video data, and is composed of, for example, a CD-ROM device. The map data storage device 3 also stores data of tall buildings and mountains.

Reference numeral 4 denotes a man-machine interface with a computing device, which is a key switch or a touch sensor that a driver inputs as necessary. An image memory 5 stores image data to be displayed on the display device.

Reference numeral 6 is a display control device, which is the same as the display device, and which sends a synchronizing signal for sending an image and data in the image memory. Reference numeral 7 is a display device for displaying map data and various service information, such as a liquid crystal display or a CRT display.

Reference numeral 8 indicates the vehicle position based on the position information from the various sensors 1 and the position detection device 2, marks the vehicle position on the map read from the map data recording device 3, and stores the map data in the image memory 5. Reference numeral 9 is a control circuit for performing arithmetic operations and control, 9 is an arithmetic device for actually performing arithmetic operations and control in the control circuit 8, 10 is a ROM in which programs and data of the arithmetic apparatus 9 are written. The RAM is a RAM for temporarily storing data, and stores map data and target data in a predetermined range read from the map data storage device 3 according to the position data from the position detection device 2.

Next, the flow of displaying the target object will be described with reference to FIG.

First, a map and the position and traveling direction of the own vehicle are displayed at a predetermined scale centering on the own vehicle (STEP 301).

Whether or not the target object is displayed, the target object display range, and the display target object are set by pressing the corresponding keys (STEPs 302 to 304), and the target object position data stored in the RAM 11 is used. The azimuth of the designated target within the designated distance with respect to the own vehicle is calculated (STEP 305), and the azimuth is displayed in a proper azimuth around the display device 7 by a symbol or an icon (STEP 306).

FIG. 4 shows a display example. The arrow shows the current position and the direction of travel, and the upper part is north in the figure.

At the upper right of the figure, the character <B> is displayed. This indicates that there is a tall building to the right of the front of the direction of travel. Similarly, it can be seen that there is a <tower>, that is, a steel tower on the left of the traveling direction.

[0016]

[Effect of the device]

 As described above, by using the present invention, it is possible to confirm the current position more easily by confirming the current position determined by the navigation system and the target of the vehicle passenger.

Further, tourist information can be provided by knowing the direction of a tall building, which is a famous place, from the inside of the car.

[Brief description of drawings]

FIG. 1 Example of navigation device of the present invention

[Fig. 2] Example of target management data of the present invention

FIG. 3 is a processing flowchart of the present invention.

[Fig. 4] Display example of the present invention

[Explanation of symbols]

 1 Various Sensors 2 Position Detection Device 3 Map Data Recording Device 4 Key Switch or Touch Sensor 5 Image Memory 6 Display Control Device 7 Display Device 8 Control Circuit 9 Arithmetic Device 10 ROM 11 RAM

Claims (1)

[Scope of utility model registration request] 1. A position detecting device for detecting a current position of a vehicle, a data storage device for recording data including map data such as a target object, and a display device for reading and displaying map data from the data storage device. A memory unit that stores data including the read map data, an input device that executes a desired input, and the desired map data is read from the data storage device based on the position information from the position detection device and is displayed on the map. It is provided with a control circuit for marking the vehicle position and sending it to the memory unit for calculation / control, and is configured to be able to display the presence of a designated target object within a designated range on the peripheral portion of the map. In-vehicle navigation device.