JPH0861963A - Navigation device with communication function - Google Patents

Abstract

PURPOSE: To indicate the current position, input position and character information of other travel bodies on a travel body display device by exchanging information on the current and input positions and character information possessed by each travel body through transmission and receiving sections, regarding a plurality of travel bodies with a navigation device having a communication function. CONSTITUTION: A transmission section 4 sends the current position signal F1, input position signal F2, character signal F10 and identification signal F3 of a travel body as transmission waves F4. On the other hand, a receiving section 5 receives waves F5. Furthermore, an identification signal judgement section 42 in the receiving section 5 makes a comparison between an identification signal F3 from other travel bodies and a specified identification signal F7 as desired, and sends a selected receiving signal F8 to a map synthesizing section 21 in a display section 3, upon finding an agreement. The section 21 synthesizes the current position signal F1, input position signal F2, character signal F10 and the selected receiving signal F8 into map information and, then, sends a display signal F9 to a display device 22 for indication.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a car navigation device of an automobile, for example, by connecting it to a communication terminal (radio device, mobile phone, etc.) so that the current position, input position and character information of a moving body can be displayed. The present invention relates to a navigation device with a communication function that communicates with another mobile body.

[0002]

2. Description of the Related Art A conventional navigation device uses a signal emitted from an external device (a radio wave from a satellite, a laser signal from an installed sensor, etc.) or a signal obtained from a position measuring device (such as the amount of movement of a vehicle to speed or tires). The current position of the moving body was calculated from a device for measuring the number of revolutions of the vehicle, a compass of the ship, etc.) and displayed on the display device. Here, the configuration and operation of the conventional technique will be described by taking a car navigation device as an example. However, in the following description, GPS
(Global Positioning System) is the reception of radio waves from GPS satellites orbiting the earth from the GPS antenna,
It is a system that knows the current position of a moving body.

FIG. 1 is a block diagram for explaining the structure and operation of an example of a conventional navigation device. The description will proceed with reference to FIG. 1 is a GPS antenna. The GPS antenna 1 receives radio waves from GPS satellites and sends a satellite signal F0 to the position calculation unit 2. The position calculator 2 calculates the current position signal F of the moving body from the satellite signal F0.
1 is calculated and sent to the map synthesis unit 21 in the display unit 3. On the other hand, the input position signal F2 and the character signal F10 from the input unit 6
Is also sent to the map synthesizer 21.

The input unit 6 is an input means such as a joystick, and is for inputting a desired position on a map or a desired intersection or a character. The map synthesizing unit 21 synthesizes various input signals input to the map information corresponding to 1000 sheets from the floppy disks 500 stored in the CD-ROM (Compact Disc Rom). The map synthesis unit 21 synthesizes the current position signal F1, the input position signal F2, and the character signal F10 with the map information to form a display signal F9, and sends the display signal F9 to the display device 22 for display.

With the above structure, the car navigation device is characterized in that the driver can confirm the current position, the input position and the character information on the map displayed on the display device 22 while traveling. Note that the position calculation unit 2 obtains the information for calculating the position from the GPS satellites, but the basic configuration and operation are the same when obtaining information from other devices. The map composition unit 21 may be omitted, and the calculated current position signal F1 may be displayed on the display device 22 as characters (coordinates or the like), but the basic configuration and operation are the same.

[0006]

The conventional navigation device does not have means for communicating the current position of a mobile unit to the navigation devices of other mobile units. Therefore, it has not been possible to share the information about the current position, the input position, and the character information of each moving body among a plurality of moving bodies.

Therefore, an object of the present invention is to provide a mobile unit having a navigation device with a communication function, which uses a transmitting unit and a receiving unit to communicate information about the current position, input position and character information of each mobile unit. By fitting,
It is an object of the present invention to provide a navigation device with a communication function capable of displaying the current position, the input position and the character information of another mobile body on the display device of the mobile body.

[0008]

According to the present invention, in a navigation device for calculating and displaying the current position of a moving body, a position calculating section for calculating the current position of the moving body and a transmission for transmitting the current position of the moving body. Unit, a receiving unit that receives the current position of the other mobile unit, and a display unit that displays the current position of the mobile unit calculated by the position calculation unit and the current position of the other mobile unit received by the receiving unit. It is a navigation device with a communication function characterized by having.

[0009]

The input section 6 has an input position signal F2 and a character signal F1.
0 is sent to the map synthesizing section 21 and the input position signal F2, the character signal F10 and the identification signal F3 are sent to the transmitting section 4. The transmission unit 4 includes a current position signal F1 and an input position signal F of the moving body.
2, the character signal F10 and the identification signal F3 are transmitted as a transmission radio wave F4. On the other hand, the receiving device 41 in the receiving unit 5 receives the reception radio wave F5 and sends it to the identification signal determining unit 42 as a reception signal F6. The identification signal determination unit 42 receives the received signal F6.
When the identification signal F3 from another moving object in the list and the designated identification signal F7 to be received sent from the input unit 6 are compared and coincident with each other, the selected reception signal F8 is transmitted to the map synthesis unit 21 in the display unit 3.
Send to The map synthesizing unit 21 adds the current position signal F to the map information.
1, input position signal F2, character signal F10, and selective reception signal F8 (current position of another mobile unit, input position, character information)
Are combined to form a display signal F9, and this display signal F9 is sent to the display device 22 for display.

[0010]

[Example] A car navigation system will be described below as an example.
The configuration and operation of one embodiment of the navigation device with communication function of the present invention will be described with reference to FIG.
1 is a GPS antenna. GPS antenna 1 is G
The position calculation unit 2 receives the satellite signal F0 by receiving the radio waves of the PS satellite.
Send to The position calculation unit 2 calculates the current position signal F1 of the moving body from the satellite signal F0, and the map synthesis unit 2 in the display unit 3
1 and the transmission unit 4.

Here, when communicating with other mobile units to share them, the identification signals are given to the mobile units registered in advance. At this time, the input unit 6 sends the input position signal F2 and the character signal F10 to the map synthesizing unit 21, and sends the input position signal F2, the character signal F10, and the identification signal F3 to the transmitting unit 4. The input unit 6 is an input means such as a joystick, and is for inputting a desired position of a destination on a map or an intersection, a character, or the like. Transmitter 4
Transmits the current position signal F1, the input position signal F2, the character signal F10, and the identification signal F3 of the moving body as a transmission radio wave F4.

The receiving device 41 in the receiving section 5 receives the received radio wave F
5 (current position signal, input position signal, character signal, identification signal of another moving body) is received and sent to the identification signal determination unit 42 as a reception signal F6. The identification signal determination unit 42 compares the identification signal F3 from another moving body in the reception signal F6 with the designated identification signal F7 to be received, which is sent from the input unit 6, and when they match, the identification signal determination unit 42 A reception signal of another mobile body corresponding to the designated identification signal F7 is selected. This selected reception signal F8 (the current position of another mobile unit, the input position,
(Text information) is sent to the map synthesis unit 21 in the display unit 3. The map synthesizing unit 21 synthesizes various input signals from the floppy disks 500 stored in a CD-ROM (Compact Disc Rom) to map information corresponding to 1000 sheets.
The map synthesizing unit 21 includes the current position signal F1, the input position signal F2, the character signal F10, and the selection reception signal F8 in the map information.
(Current position, input position, character information of other moving body) is combined to form a display signal F9, and this display signal F9 is sent to the display device 22 for display.

The operation of the embodiment of the present invention will be described below with reference to FIGS. Here, 5
The normal operation mode will be described. In addition, the moving bodies indicated by A, B, and C respectively include the navigation device with the communication function shown in FIG. 2 and described above. The display at the current position and the input position may be a simple circle mark, but a symbol display or the like that makes it possible to distinguish a moving body from another moving body, or to distinguish a plurality of other moving bodies from each other. Is preferably used in combination.

FIG. 3 is a schematic diagram for explaining the operation of the mobile unit B displaying the current position and the current position of another mobile unit A in one embodiment of the present invention. In FIG. 3, when the mobile unit B displays the current position of the other mobile unit A together with the current position by the navigation device with the communication function of the other mobile unit A and the mobile unit B, the other mobile unit A acts as the transmitting side. The mobile unit B operates as a receiving side. That is,
The other mobile unit A transmits the current position signal F1 by the transmitter 4 as a transmission radio wave F4. Mobile unit B transmits radio wave F4
Is received by the receiving unit 5 as a reception radio wave F5. Then, the current position of the other mobile unit A can be confirmed together with the current position on the display device 22 in the display unit 3 by the selection reception signal F8 from the reception unit 5.

FIG. 4 is a schematic diagram for explaining the operation of the mobile unit B displaying the input position of another mobile unit A in one embodiment of the present invention. In FIG. 4, another mobile unit A
And the navigation device with the communication function of the mobile unit B,
When the mobile unit B displays the input position of another mobile unit A,
The other mobile unit A operates as a transmitting side, and the mobile unit B operates as a receiving side. That is, the other mobile body A transmits the input position signal F2 as the transmission radio wave F4 by the transmission unit 4. The mobile unit B receives the transmission radio wave F4 as the reception radio wave F5 at the receiving unit 5. Then, it is possible to confirm the input position input from the input unit 6 of another moving body A on the display device 22 in the display unit 3 by the selection reception signal F8 from the reception unit 5.

FIG. 5 is a schematic diagram for explaining the operation of the mobile unit B displaying the input position of another mobile unit A and character information in one embodiment of the present invention. In FIG. 5, when the mobile device B displays the input position and the character information of the other mobile device A by the navigation device with the communication function of the other mobile device A and the other mobile device B, the other mobile device A becomes the transmission side. The mobile unit B operates as a receiving side. That is, the other mobile unit A transmits the input position signal F2 and the character signal F10 as the transmission radio wave F4 by the transmission unit 4. Mobile B is
The receiving section 5 receives the transmission radio wave F4 as a reception radio wave F5. Then, on the display device 22 in the display unit 3 by the selection reception signal F8 from the reception unit 5, the input unit 6 of the other mobile unit A.
You can check the input position and the character information (character information about the input position, etc.) input from.

In FIG. 6, in one embodiment of the present invention, the moving body A sets the input position of the moving body A only to one of the plurality of other moving bodies B and C, for example, the other moving body B. It is a schematic diagram for explaining the operation to display. In FIG.
By the navigation device with the communication function of the moving body A, the other moving body B, and the other moving body C, the moving body A is moved to the other moving body B.
When the input position is displayed only on, the mobile unit A operates as the transmitting side and the other mobile unit B operates as the receiving side.
That is, the moving body A transmits the identification signal F3 assigned to each moving body together with the input position signal F2 by the transmitting unit 4 as the transmission radio wave F4.

The other mobile unit B and the other mobile unit C receive the transmitted transmission radio wave F4 as a reception radio wave F5 at the receiving unit 5. At this time, the receiving units 5 of the other mobile units B and C
The identification signal determination unit 42 in the inside of the received identification signal F3 of the moving body A specifies the identification signal F7 (the specified identification signal F7 input from the input unit 6, or the identification signal determination unit 4 in advance).
The identification signals input to 2) are compared with each other. In FIG. 6, the identification signal F3 of the mobile unit A corresponds only to the designated identification signal F7 of the other mobile unit B. As a result, the identification signal F3 of the mobile unit A and the designated identification signal F7 of the other mobile unit B match. Then, the input position of the moving body A can be confirmed on the display device 22 in the display section 3 of the other moving body B by the selection reception signal F8 from the identification signal judging section 42 of the other moving body B. . In this case, by changing the identification signal F3 of the moving body A, the input position can be selectively displayed on another moving body A. Further, the display may be made not only on one other moving body but also on two or more other moving bodies at the same time.

FIG. 7 shows an operation in which the mobile unit C displays only the input position from one of the plurality of other mobile units A and B, for example, another mobile unit B in one embodiment of the present invention. It is a schematic diagram for explaining. In FIG. 7, when the mobile device C displays only the input position from the other mobile device B by the navigation device with the communication function of the other mobile device A and the other mobile devices B and C, the other mobile devices are displayed. B operates as the transmitting side, and mobile unit C operates as the receiving side. In other words, the other moving body A and the other moving body B receive the input position signal F2.
At the same time, the transmitter 4 transmits the identification signal F3 assigned to each moving body as a transmission radio wave F4.

The mobile unit C receives the transmitted transmission radio wave F4 as a reception radio wave F5 at the receiving section 5. At this time, the identification signal determination unit 42 in the reception unit 5 of the mobile unit C receives the designated identification signal F7 (input from the input unit 6) with respect to the received identification signals F3 of the other mobile units A and B. Identification signal F
3 or the identification signals that have been input to the transmission unit 4 in advance) are compared with each other. In FIG. 7, the designated identification signal F7 of the mobile unit C corresponds only to the identification signal F3 from another mobile unit B. As a result, the identification signal F3 of the other mobile unit B and the mobile unit C are detected.
The designated identification signal F7 of is in agreement. Then, based on the selection reception signal F8 from the identification signal determination unit 42 of the mobile unit C, the input position of another mobile unit B can be confirmed on the display device 22 in the display unit 3 of the mobile unit C. In this case, the moving body C
By changing the designated identification signal F7 of, the input position of another moving body A can be selectively displayed. Furthermore, not only one input position but also two or more input positions may be displayed at the same time.

The present invention is not limited to the above-mentioned embodiment. Although the identification signal assigned to each mobile unit is handled in one embodiment, there is no problem even when the transmission unit 4 and the reception unit 5 perform transmission and reception using only a specific frequency band by omitting all the processing related to the identification signal. Does not happen. Further, although the input unit 6 is provided in one embodiment, the present invention is also applied to a case where the input unit 6 is omitted and only the current position signals F1 of a plurality of moving bodies are transmitted and received.

[0022]

According to the present invention, in a plurality of moving bodies having a navigation device with a communication function, the transmitting unit and the receiving unit are used to communicate information about the current position, the input position and the character information of each moving unit. As a result, it is possible to display the current position, the input position, and the character information of another moving body on the display device of the moving body. In addition, this technology applies to all moving bodies (vehicles,
(Vessels, people, etc.) play an important role in communication of information that each mobile has.

[Brief description of drawings]

FIG. 1 is a block diagram for explaining the configuration and operation of an example of a navigation device according to a conventional technique.

FIG. 2 is a block diagram for explaining the configuration and operation of a navigation device with a communication function in an embodiment of the present invention.

FIG. 3 is a schematic diagram for explaining an operation of displaying a current position and a current position of another moving body in the embodiment of the present invention.

FIG. 4 is a schematic diagram for explaining an operation of displaying an input position of another moving body in the embodiment of the present invention.

FIG. 5 is a schematic diagram for explaining an input position of another moving body and an operation for displaying character information in one embodiment of the present invention.

FIG. 6 shows another mobile unit B according to an embodiment of the present invention.
It is a schematic diagram for explaining the operation of displaying the input position on one of the moving bodies of C.

FIG. 7 shows another mobile unit A according to an embodiment of the present invention.
FIG. 11 is a schematic diagram for explaining an operation of displaying an input position from one of B moving bodies.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 GPS antenna 2 Position calculation part 3 Display part 4 Transmission part 5 Reception part 6 Input part 21 Map composition part 22 Display device 41 Reception device 42 Identification signal judgment part

Claims (4)

[Claims] 1. A navigation device for calculating and displaying a current position of a moving body, a position calculating section for calculating the current position of the moving body, a transmitting section for transmitting the current position of the moving body, and another movement. Having a receiving unit for receiving the current position of the body, and a display unit for displaying the current position of the moving body calculated by the position calculating unit and the current position of the other moving body received by the receiving unit. A navigation device with a communication function. 2. The navigation device with a communication function according to claim 1, further comprising an input unit that sends an input position and character information to the transmission unit and the display unit. . 3. The navigation device with a communication function according to claim 1, further comprising an input unit for transmitting an identification signal for identifying each moving body to the transmission unit and the display unit. Navigation device with communication function. 4. The navigation device with a communication function according to claim 1, further comprising an input unit that sends an identification signal for identifying each moving body to the transmission unit and the display unit, and the transmission unit. Sends the current position and the identification signal as a transmission radio wave, the receiving unit receives the reception radio wave and gives it to the identification signal determination unit, and the identification signal determination unit determines the identification signal in the reception radio wave. A navigation device with a communication function, characterized in that the current position of another designated moving body is selected and sent to the display section.