JPH08304088A - Navigation system of moving body - Google Patents

Abstract

PURPOSE: To obtain a navigation system in which voice, graphic or character data, as well as the positional information from a GPS receiver, can be ex changed between first and second moving bodies, e.g. automobiles. CONSTITUTION: Two automobiles 7A, 7B mounting GPS receivers 2A, 2B, respectively, are provided with receivers 8A, 8B for exchanging the positional information received by the GPS receivers 2A, 2B. The automobiles 7A, 7B are further provided with units 10A, 10B for inputted information other than the positional information, transmitters 11A, 11B for transmitting other information to other vehicle, receivers 13A, 13B for receiving other information, and control circuits 15A, 15B for controlling the transmission/reception of information to/from the receivers 13A, 13B and the input units 10A, 10B and displaying the information on displays 5A, 5B. With such constitution, message information can be exchanged and displayed in addition to the positional information.

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 a mobile body, and more particularly, it provides position information and / or other information other than the position information between two mobile bodies each equipped with a GPS receiver. The present invention relates to a mutually interchangeable navigation system.

[0002]

2. Description of the Related Art Conventionally, a navigation system having a GPS receiver has the configuration shown in FIG. In FIG. 4, 1 is a GPS receiving antenna, and 2 is a GPS receiver that receives GPS radio waves from satellites via the GPS receiving antenna. Reference numeral 3 denotes a position information calculation device that calculates the position information of the moving body based on the received GPS radio waves. Reference numeral 4 is a map data storage device, 5 is a display device, and 6 is an image processing circuit. The position of the moving body calculated by the position information calculation device 3 is arranged on the map data.

On the other hand, there has been proposed a structure in which position information can be exchanged between two automobiles (ships) for such a general navigation system. For example, JP-A No. 5-10008 and JP-A No. 4-158290 can be cited.

[0004]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
The techniques disclosed in Japanese Patent Application Laid-Open No. 08-08158 and Japanese Patent Application Laid-Open No. 4-158290 are systems in which only position information can be exchanged with each other. However, for example, when companions take a few cars and travel, go to golf, etc., it is not enough to exchange location information, and message information unique to the comrades, such as voice, figure,
It is desirable that character information and the like can be exchanged with each other, and the above-mentioned conventional techniques have not been considered in this respect.

An object of the present invention is to provide a navigation system for a mobile body, which can surely exchange not only position information but also information other than position information.

[0006]

In order to achieve the above object, according to the present invention, a first GPS receiver, a first position information calculation device, a first map data storage device, and a first display. In a navigation system for a mobile body, which includes a device and a first image processing circuit for controlling them, a first mobile body is installed in the first mobile body, and first position information of the first mobile body is stored in the second mobile body. A first position information transmitter for transmitting to, a transmitting antenna connected to the first position information transmitter, and a device for inputting information other than the first position information installed in the first moving body. One input device, a first other information transmitter for transmitting information other than the first position information input by the first input device to the second mobile object, and the first other information Other information transmission antenna connected to the transmitter and second other information installed in the second mobile unit A first other information receiver that receives information other than the second position information transmitted from the receiver via the other information receiving antenna, and the first other information receiver is other than the second position information. When the other information is received, the other information is displayed on the first display device, and / or other information other than the first position information input to the first input device is displayed on the first display device. And a first other information control circuit for controlling the display.

[0007]

With the above arrangement, it is possible to exchange the position information and other information other than the position information between the first moving body and the second moving body.

[0008]

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

In FIG. 1, 7A is a first moving body and is shown by a frame surrounded by a dotted line on the left side. 7B is a second moving body and is shown by a frame surrounded by a dotted line on the right side. here,
Since the configuration of the first moving body 7A and the configuration of the second moving body 7B are the same and are distinguished by A or B after the reference numeral, only the configuration of the first moving body 7A will be described and the second moving body 7A will be described. The description of the moving body 7B is omitted. In addition, in the first moving body 7A, 1
A to 6A have the same configurations as those shown in FIG. 4, and the first receiving antenna 1A, the first GPS receiver 2A, the first position information computing device 3A, and the first map data storage device 4 are provided.
The operations of A, the first display device 5A, and the first image processing circuit 6A are similar to those of 1 to 6 in FIG.

In the first mobile unit 7A, 8A is a first position information transmitter installed in the first mobile unit, which stores the position information of the first mobile unit calculated by the position information calculation unit 3A. What is transmitted to the second mobile unit 7B. 9A is a first transmitting antenna connected to the first position information transmitter 8A. 10A is a first input device for inputting information (voice, figure, or character information) other than position information. 11A is a first other information transmitter that transmits information other than the input position information toward the second mobile body 7B,
12A is a first other information transmitting antenna, 13A is a first other information receiver for receiving other information transmitted from the second mobile object, 14A is a first other information receiving antenna, and 15A is a first other information receiving antenna. An information control circuit, which transmits other information other than the first position information input to the first input device 10A via the first other information transmitter 11A, or the first other information receiver. The information is controlled to be received through 13A and the information from the other information receiver 13A and the input device 10A is controlled to be displayed on the display device 5A.

Next, the operation will be described with reference to FIGS.

FIG. 2A shows the display screen of the first display device in the first moving body, and FIG. 2B shows the display screen of the second display device in the second moving body. In addition, in FIGS. 2A and 2B, the current position of the first moving body is represented by point a, and the current position of the second moving body is represented by point b.

Now, the first moving body and the second moving body are automobiles, and the first moving body moves from the a point to the f point and the second moving body moves from the point a to the point f in FIG. Is proceeding from point b to point f. At this time, in the first moving body 7A, the first GPS receiver 2A shown in FIG. 1 receives the GPS radio wave from the satellite,
The position information of the first moving body 7A is calculated based on the GPS radio wave received by the first position information calculating device 3A, and the position of the first moving body calculated by the first image processing circuit 6A is set to the first position. Since it is arranged on the map data in the display device 5A of FIG.
This is notified by lighting the point c in (a). Similarly, also in the second moving body 7B shown in FIG. 1, the second GPS receiver 2B receives the GPS radio wave from the satellite, and based on the GPS radio wave received by the second position information calculation device 3B. Since the position information of the second moving body 7B is calculated by positioning, the traveling position of the second moving body 7B is also notified by the lighting display of the point d in FIG. 2B. Further, along with this operation, the second position information calculation device 3B of the second moving body 7B shown in FIG. 1 outputs the result of the positioning calculation via the second position information transmitter 8B and the second transmission antenna 9B. Therefore, the first image processing circuit 6A in the first moving body 7A that receives the first moving object 7A receives the first receiving antenna 1A and the first GPS receiving signal. The traveling position information of the second moving body 7B is controlled to be displayed on the same display device 5A via the machine 2A and the first position information calculation device 3A.

Therefore, as shown in FIG. 2A, on the map data of the first display device in the first moving body, in addition to the point c, which is the traveling position of the first moving body, The d point, which is the traveling position of the second moving body, is also lit and displayed. On the other hand, similar position information is transmitted from the first mobile unit to the second mobile unit, so that the map data of the second display device of the second mobile unit is displayed on the map data of FIG. In addition to the point d, which is the traveling position of the second moving body, the point c, which is the traveling position of the first moving body, is lit and displayed as shown in FIG.

By continuing such position information exchange, the traveling position of the first moving body reaches the point f in FIG. 3A and the point f is lit up. At this time, for example, if there is congestion from point d to point e on the travel route of the second moving body, d
It only lights up the spot.

When this state is seen from the first moving body which has arrived at the f point which is the waiting place first, the d point which is the traveling position of the second moving body lights up on the first display device. Is the second moving body involved in the traffic jam?
Information is unknown whether it was stopped for some reason or was in an accident, and from the perspective of people boarding the second moving body stopped at point d, this was due to congestion. Despite wanting to send the information that the vehicle is stopped to the first moving body, it is annoying that this cannot be done.

Therefore, in the present invention, as shown in FIG.
The second mobile body 7B which transmits the inquiry message other than the position information from the first mobile body 7A to the second mobile body 7B or receives the inquiry message transmits the reply message to the first mobile body 7A. By configuring to send,
This is a solution to the above-mentioned troublesome problem.

That is, now, as shown in FIG. 3A, the first moving body has arrived at point f and the second moving body is at point d. From this state, "d"
~ The second input device in the second moving body 7B shown in FIG. 1 is provided with a voice or a graphic or character information saying "the point e is congested and the first moving body wants to go to the destination first". When input to 10B, the second other information control circuit 15B digitally compresses the voice or graphic or character information (hereinafter referred to as other information), and at the same time, the second other information transmitter 11B and the second other information transmitter 11B. Other information transmitting antenna 12B
In order to input to the first other information receiving antenna 14A in the first moving body 7A via the, the first other information receiver 13A of the first moving body which receives this transmits the other information to the other information. Input to the control circuit 15A.

Then, the other information control circuit 15A digitally expands the message information indicating that "the points d to e are congested and the first mobile wants to go to the destination first" of the second mobile. At the same time, the output is controlled to be output to the first display device 5A. As a result, people boarding the first moving body can visually confirm the position information of the second moving body in the lighting state of the point d in FIG. 3 (a), and "the points d to e are congested. Since it is possible to confirm the voice, graphic, or character information saying "I want the first moving body to go to the destination first," the action to be performed next can be performed, so that the above-mentioned annoyance can be eliminated.

In the system in which the first mobile unit 7A and the second mobile unit 7B exchange position information and / or other information as described above, information exchange is carried out via a satellite. Since it is expensive and difficult to realize, the actual information exchange is based on the existing road traffic system VIC.
It will be carried out via a relay tower such as S (a method of communicating via the relay tower closest to the moving body). As for the frequency band used in this case, it is feared that there will be a shortage of frequencies due to the spread of mobile phones in recent years, but it will also be possible to use millimeter waves that can be used with future digital main broadcasting. A predetermined frequency band is secured to enable reliable information exchange.

[0021]

As described above, according to the navigation system for a mobile unit of the present invention, the first and second mobile units are respectively provided with transceivers for transmitting and receiving position information, and other than the position information. An input device for inputting information, a transmitter / receiver for other information for transmitting / receiving information other than position information to / from the first and second moving bodies, and another information control circuit for controlling them are provided, Since the position information and the information other than the position information are exchanged between the mobile unit and the second mobile unit, the information exchange between the first mobile unit and the second mobile unit is possible. The effect is that it can be performed reliably.

[Brief description of drawings]

FIG. 1 is a system block diagram showing the main points of the present invention.

FIG. 2 is an explanatory diagram showing an example of a display screen of a display device.

FIG. 3 is an explanatory diagram showing another embodiment of the display screen of the display device.

FIG. 4 is a system block diagram showing a configuration of a conventional navigation system.

[Explanation of symbols]

 1A 1st GPS receiving antenna 2A 1st GPS receiver 3A 1st position information calculating device 4A 1st map data storage device 5A 1st display device 6A 1st image processing circuit 7A 1st moving body 7B Second mobile object 8A First position information transmitter 9A First position information transmitting antenna 10A First input device 11A First other information transmitter 12A First other information transmitting antenna 13A First other information reception Machine 14A First other information receiving antenna 15A First other information control circuit.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Katsuhiko Izumi, 292 Yoshida-cho, Totsuka-ku, Yokohama-shi, Kanagawa, Ltd. Inside the Hitachi Media Visual Media Laboratory (72) Inventor Hirofumi Taguchi, 292 Yoshida-cho, Totsuka-ku, Yokohama-shi, Kanagawa Hitachi, Ltd. Visual Media Laboratory (72) Inventor Nobuyuki Kaku, 292 Yoshida-cho, Totsuka-ku, Yokohama, Kanagawa Prefecture

Claims (6)

[Claims] 1. A navigation system for a mobile body, which exchanges information by transmitting / receiving positional information of a first mobile body and / or information other than the positional information to / from a second mobile body other than the first mobile body. A navigation system for a mobile body, wherein the information other than the position information is voice information, graphic information, or character information. 2. A first GP which is installed in a first mobile unit and receives GPS radio waves to obtain first position information of the first mobile unit.
An S receiver, a first position information calculation device that is installed in the first mobile unit and performs positioning calculation of the first position information of the first mobile unit by GPS radio waves, and a map installed in the first mobile unit A first map data storage device for outputting data, and the first movement on the map data output from the first map data storage device based on the positioning calculation result of the first position information calculation device. In a navigation system for a mobile body, which comprises a first image processing circuit which controls to display first position information of the body, and a first display device which displays an output of the first image processing circuit, A first position information transmitter that is installed in a first moving body and transmits first position information of the first moving body to a second moving body other than the first moving body via a transmitting antenna; , The first position installed on the first moving body A first input device for inputting information other than the information, and a first other device for transmitting information other than the first position information input by the first input device to the second mobile body. Information transmitter and first other information reception for receiving other information other than the second position information transmitted from the second other information transmitter installed in the second mobile body via a reception antenna And a first other information receiver, when the other information other than the second position information is received, displays the other information on the first display device, and / or to the first input device. A first other information control circuit for controlling to display information other than the input first position information on the first display device, and the first moving body and the second moving body. Information exchange between the first and second position information and information other than the first and second position information. Navigation system of a moving body and said. 3. The car navigation system according to claim 2, wherein the information other than the position information is voice information, graphic information or character information. 4. The navigation system for a mobile body according to claim 1, 2 or 3, wherein information is exchanged using millimeter waves. 5. The navigation system for a mobile body according to claim 1, 2, 3 or 4, wherein information exchange is performed using digitally compressed and expanded signals. 6. The navigation system according to claim 1, 2, 3, 4 or 5, wherein the first moving body and the second moving body are automobiles.