JPH10253375A - Navigation system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a simplification of a memory of a navigation device while eliminating the need for purchasing the latest map information periodically by a user of a navigator. SOLUTION: A terminal 3 provided on a vehicle 1 receives a radio wave from a GPS(global positioning system) satellite 12 to accurately compute the position thereof. The information of the current position is inputted into a computer apparatus 9 together with information on the destination through an antenna 4 for orbit communication, a communication satellite 5, a ground base station 6 and a ground circuit 7 to compute a course based on the latest map information or the like inputted in a data base 8. The results of computation are inputted into the terminal 3 again through the ground circuit 7, the orbit communication 6 base station and the like to be notified to an operator by a liquid crystal monitor or a voice generation recognizing device 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a navigation system for detecting the position of a moving body such as an automobile and informing a driver of a route or the like.

[0002]

2. Description of the Related Art In a conventional navigation system, a mobile device is provided with a navigation device including a display, a storage device, a position detection device, and the like, and a gyro, a GPS (global positioning system) satellite, a beacon, and the like are used. The current position is detected, and this current position is displayed on the display. Then, by inputting the destination information, the route is calculated, and the route is displayed on a display or notified to the driver by voice or the like.

[0003]

In the above-mentioned conventional navigation system, it is necessary to input the latest map information as much as possible into the storage device. However, the map information changes every day, and if it is too old, it becomes impossible to calculate a correct route. Therefore, a user of the navigation system must always purchase map information written on a CD-ROM or the like sold by a software maker at regular intervals, and input the map information into a storage device of the navigation device.

[0004] The regular purchase and rewriting of the map information in this way requires a considerable expense for the user, and it is necessary to pay attention to the purchase of the latest map information. is there.

[0005] It is an object of the present invention to provide a navigation system which does not require such regular purchase and updating of map information, and which has a very simple configuration of a navigation device mounted on a moving body. Is what you do.

[0006]

According to the present invention, there is provided a navigation system comprising a communication device mounted on a moving body, a position detecting device, and a display or generating device; a ground base station communicating with the navigation device. And a navigation information storage database and a route calculation device connected to the ground base station; and the position of the moving object detected by the position detection device of the navigation device together with the destination is transmitted from the communication device to the communication device. Input to the route calculation device via the ground base station, calculate the route based on the navigation information stored in the database, transmit the calculation result from the ground base station to the navigation device, and display or generate the navigation device Characterized in that route information is displayed or generated by a device A.

In the navigation system of the present invention, the current position is detected using, for example, a GPS satellite, a gyro, a beacon, and the like, and the current position information is transmitted from the navigation device to a ground base station using a communication satellite line or the like. Transmit and input from terrestrial base station to arithmetic unit.
In this arithmetic device, a route is calculated based on the latest navigation information (for example, map information, parking lot information, hotel and restaurant information) stored in a database. Then, the calculation result is transmitted from the ground base station to the navigation device, and the route information is displayed or generated by the display or generation device of the navigation device.

Therefore, in the navigation system of the present invention, there is no need for a means for storing map information in a mobile navigation device, and all of this navigation information can be stored in a database connected to a ground base station. Good. Therefore, this navigation device does not require a device for storing navigation information such as map information, and does not require purchasing the latest navigation information.

[0009]

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

FIG. 1 is a system diagram showing an embodiment, in which a liquid crystal monitor or a speech generation / recognition device 2 mounted on an automobile 1 is shown.
, Communication terminal 3, orbcom antenna 4, communication satellite 5
And an Orbcom ground base station 6 and a database 8 connected to the Orbcom ground base station 6 via a ground line 7.
This system is constituted by the computer device 9 including the. Note that a GPS antenna 11 is installed in the vehicle 1, and the terminal 3 accurately calculates the current position of the vehicle 1 by satellite radio waves from GPS satellites 12.

The current position information is stored in the speech generation and recognition device 2.
Is transmitted from the orbcom antenna 4 together with the input destination information. This transmission signal is transmitted to the communication satellite 5
And received by the Orbcom ground base station 6 and input to the computer device 9 via the ground line 7. In the database 8 of the computer device 9, map information is input from the database company group 13 together with parking lot information, hotel information, restaurant information, traffic information, and the like.
The database 8 is always filled with the latest information.

The automobile 1 sent via the ground line 7
The current position information and the destination information are input to the computer device 9 and the route to the destination is calculated based on the information stored in the database 8. The result of this operation is
The signal is transmitted to the Orbcom ground base station 6 via the ground line 7, transmitted to the terminal 3 via the communication satellite 5 and the Orbcom antenna 4, and the operation result is notified to the driver by the liquid crystal monitor or the sound generator 2.

As described above, it is unnecessary to store the map information in the terminal 3 of the automobile 1, and it is not necessary for the user of the automobile 1 to always purchase and update the latest map information. . Since the terminal 3 does not require the map information storage device, a terminal 3 having a simple configuration can be used.

The route calculated by the computer device 9 includes, in addition to the shortest route to the destination, route information indicating an empty parking lot, information indicating a desired type of restaurant to be searched for, and information indicating a route to the restaurant. The information includes information indicating a route that makes the least right or left turn, information indicating an unoccupied road even if the vehicle turns slightly.

The liquid crystal monitor or the voice recognition device 2 recognizes a voice generated by the driver and outputs a signal for calling an ambulance or a tow truck as needed. This signal is also transmitted to the computer 9 via the orbcom antenna 4, the communication satellite 5, the orbcom ground base station 6, and the ground line 7.
And a dispatch request signal is transmitted from the computer device 9 to the tow truck owned organization or the ambulance owned organization together with the accident point signal.

[0016]

As described above, according to the present invention, it is unnecessary to store map information in a navigation device such as an automobile, and a storage operation device such as a terminal of the automobile is extremely simple and inexpensive. Things will be enough.
Further, it is unnecessary for the owner of the navigation device to always purchase the latest map information, so that cost burden and troublesomeness are eliminated. According to the present invention, for example, a vacant restaurant, gas station, parking lot, or the like can be quickly detected, and a tow truck or a traffic accident report can be made.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing a navigation system according to an embodiment.

[Explanation of symbols]

 Reference Signs List 1 automobile 2 LCD monitor or voice recognition device 3 terminal 4 orbcom antenna 5 communication satellite 6 orbcom ground base station 7 terrestrial line 8 database 9 computer device 11 GPS antenna 12 GPS satellite 13 database company group

Claims (1)

[Claims] 1. A navigation device comprising a communication device mounted on a mobile body, a position detection device, and a display or generation device; a ground base station communicating with the navigation device; and a ground device connected to the ground base station. A database for navigation information storage and a route calculation device; and inputs the position of the moving object detected by the position detection device of the navigation device together with the destination from the communication device to the route calculation device via the ground base station. Calculate the route based on the navigation information stored in the database,
A navigation system, wherein a calculation result is transmitted from the ground base station to a navigation device, and route information is displayed or generated by a display or generator of the navigation device.