JPH08115494A - Navigation device and navigation system - Google Patents

Abstract

PURPOSE: To provide a navigation device and a navigation system whereby navigation data is transmitted/received between the navigation devices. CONSTITUTION: The navigation device 3 mounted on a mobil body is provided with a radio wave part 5 and an antenna 4 in addition to a GPS receiver 7 and transmits required navigation data within set navigation data to another navigation device 3 which is moved with the mobil body where this navigation device 3 is mounted when navigation data such as present position, target position and route, etc., are set from an input part 10. In this case, when another navigation device 3 which is moved with this device 3 is in a group, the group is designated so that navigation data required for the group is successively transmitted to the whole navigation devices 3 in the group.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a navigation device and a navigation system, and more particularly, to a navigation device and a navigation system for informing a moving state of a moving body.

[0002]

2. Description of the Related Art A conventional navigation device or system for a moving body is, for example, a GPS.
(Global Positioning System) is available. This GPS-based navigation device is mounted on each mobile body, for example, on each car, etc. When the current position and the target position are set, various directions from the current position to the target position, for example, the shortest route, mainly the main A route consisting of a road or a route that can be reached in a short time is calculated, and the route selected by the user among these various routes is displayed on the map information together with the current position and the target position.

That is, a navigation device using GPS is mounted on each moving body and stores map information in a memory. When the current position and the destination position are input and operated at the departure point, the navigation device calculates various directions from the current position and the destination position, and selects the selected route,
It is displayed on the map information together with the current position and destination position. When the mobile body starts traveling according to the above route, the navigation device receives a predetermined signal from a GPS satellite, calculates its own current position from this signal, and uses the calculated current position as map information in the memory. It is synthesized and displayed on the display device.

[0004]

However, the navigation device used in such a conventional navigation system is basically used on an individual basis and is used in a plurality (group) unit. Since this is not premised, the current position, the target position, the route, etc. are input for each navigation device.

Therefore, in order to go to the same destination position through the same current position from the same current position for each group, each navigation device performs input operation of various navigation data such as input of current position and destination position and selection of route. However, there is a problem in that the navigation device has poor usability because the setting operation is troublesome and the navigation devices in the same group may make different settings.

Therefore, the present invention has been made in view of the above-mentioned problems, and navigation data set by at least one navigation device can be shared by other navigation devices, and the navigation device and the navigation device have good usability. The purpose is to provide a system.

[0007]

According to a first aspect of the present invention, there is provided a navigation device, which is mounted on a moving body, generates a current position of the moving body, and displays the present position on a map. , Operating position for performing various setting operations necessary for various navigation processes such as current position, destination position and route, and various navigation data necessary for other navigation processes such as navigation data and map data set by the operating unit. The above-described object is achieved by including storage means for storing and control means for outputting predetermined navigation data among the navigation data stored in the storage means together with identification data of another navigation device.

In this case, for example, as described in claim 2, the control means, when the navigation data to be output among the various navigation data is designated by the operation means, the storage means is the storage means. Of the navigation data stored in, the necessary navigation data may be output based on the designation by the operating means.

Further, for example, as described in claim 3, the storage means stores identification data of the other plurality of navigation devices as a group, and the control means stores the navigation data by the operation means. When a group stored in the storage means is designated as an output destination, the identification data and the navigation data may be output to each navigation device of the designated group.

Further, for example, as described in claim 4, navigation data to be output corresponding to the group stored in the storage means may be stored.

The navigation device of the present invention is described in claim 5.
As described in, a navigation device that is mounted on a mobile body, generates a current position of the mobile body and displays the current position on a map, and a receiving unit that receives navigation data transmitted from another navigation device, Storage means for storing the navigation data received by the receiving means and other various navigation data necessary for the navigation processing; and control means for setting the navigation data necessary for the navigation processing based on the navigation data received by the receiving means. The above-mentioned object is achieved by including the.

In the navigation system of the present invention, as described in claim 6, a navigation device is mounted on each of a plurality of moving bodies, and each navigation device generates a current position of each moving body and displays it on a map. In the navigation system, at least one of the navigation devices is configured by an operating unit that performs various setting operations necessary for various navigation processes such as a current position, a target position, and a route, and the operating unit. Storage means for storing various navigation data necessary for other navigation processing such as navigation data and map data, transmission means for transmitting the navigation data stored in the storage means to another navigation device, and the storage means. The stored navigation data Control means for transmitting predetermined navigation data to the other navigation device from the transmitting means, and the other navigation device among the navigation devices receives the navigation data transmitted from the navigation device including the transmitting means. Receiving means for receiving, and storage means for storing the navigation data received by the receiving means and various navigation data necessary for other navigation processing,
The above object is achieved by including control means for setting navigation data necessary for navigation processing based on the navigation data received by the receiving means.

[0013]

According to the navigation device of the present invention, the navigation device mounted on the moving body performs various setting operations necessary for various navigation processes such as the current position, the target position and the route by the operating means. Various navigation data necessary for other navigation processing such as navigation data and map data set by the operating means are stored in the storage means. Predetermined navigation data among the navigation data stored in this storage means is output under the control of the control means together with the identification data of other navigation devices.

Therefore, the navigation data set by the operation means in one navigation device can be transmitted to the other navigation devices so that the navigation data can be shared by the other navigation devices, and the navigation data can be shared by all the navigation devices. It is possible to save the trouble of setting, prevent missetting of navigation data, and improve the usability of the navigation device.

In this case, for example, when the control means specifies navigation data to be output among the various navigation data by the operation means, the control means stores the data in the storage means. Among the navigation data, if the necessary navigation data is output based on the designation by the operation means, only the necessary navigation data can be transmitted, and the necessary and sufficient navigation data can be transmitted in a short transmission time. it can.

Further, for example, as described in claim 3, the storage means stores identification data of the other plurality of navigation devices as a group, and the control means stores the navigation data of the navigation data by the operation means. When a group stored in the storage means is designated as an output destination, each navigation device of the designated group is caused to output the identification data and the navigation data, and the group that acts together. The same navigation data can be transmitted to the navigation devices inside the same, and the same navigation data can be easily and easily shared within the group.

Further, for example, as described in claim 4, when the navigation data to be output corresponding to the group stored in the storage means is stored,
It is possible to efficiently transmit the shared navigation data to the navigation devices in the group that are taking action.

According to the navigation device of the present invention, the receiving means receives the navigation data transmitted from the other navigation device, and the received navigation data and other various navigation data necessary for the navigation processing. Is stored in the storage means. Then, the control means sets the navigation data necessary for the navigation processing based on the navigation data received by the receiving means.

Therefore, it is possible to set the same navigation data as that of the other navigation device without performing the setting operation of the navigation data one by one, and it is possible to prevent the setting error of the navigation data from being set, and the navigation data is set by the other navigation device. Navigation data can be shared. As a result, the usability of the navigation device can be improved.

According to the navigation system of the invention described in claim 6, when a navigation device is mounted on each of a plurality of moving bodies, and each navigation device generates a current position of each moving body and displays it on a map, When at least one navigation device of the plurality of navigation devices performs various setting operations necessary for various navigation processes such as the current position, the target position and the route by the operating means, the navigation data set by the operating means and Various navigation data necessary for other navigation processing such as map data is stored in the storage means, and the control means transmits predetermined navigation data among the navigation data stored in the storage means from the transmission means to another navigation device. Let

Then, the other navigation device receives the navigation data transmitted from the navigation device provided with the transmitting means by the receiving means, and receives the received navigation data and other various navigation data necessary for the navigation processing. It is stored in the storage means. The control means sets the navigation data necessary for the navigation processing based on the received navigation data.

Therefore, when the navigation data is set by at least one navigation device, the operation of setting the navigation data is not performed by the plurality of other navigation devices one by one, and the input error of the navigation data is prevented, while the other plural navigation devices are set. The same navigation data can be shared by the navigation devices, and the usability of the navigation system can be improved.

[0023]

EXAMPLES The present invention will be specifically described below based on examples. 1 to 7 are views showing a navigation system to which an embodiment of a navigation device and a navigation system according to the present invention are applied. This embodiment shows a navigation device and a navigation system mounted on a moving body such as an automobile. It has been applied to.

First, the structure will be described. FIG. 1 is an overall configuration diagram of a navigation system 1 that acquires the current position of a moving body by GPS (Global Positioning System). 1, a navigation system 1 includes a navigation device (see FIG. 2) 3 and a plurality of GPS satellites G mounted on a plurality of moving bodies 2a, 2b, ...
The navigation device 3 is composed of S1, GS2, GS3, ..., And is mounted on each of the moving bodies 2a, 2b ,.
The GPS satellite signals transmitted from S2, GS3, ... Are received to calculate the current position and other mobile units 2
It has a communication function for communicating with a, 2b, ....

As shown in FIG. 2, the navigation device 3 includes an antenna 4, a radio section 5, a control section (control means) 6,
GPS receiver 7, map data storage unit (storage means)
8, a display unit 9, an input unit (operating means) 10, and the like.

The GPS receiver 7 is for each GPS satellite GS.
The GPS satellite signals transmitted from 1, GS2, GS3, ... Are received, converted into a predetermined signal form, and output to the control unit 6.

The control unit 6 has three or four GPS satellites GS1, GS2, G input from the GPS receiver 7.
The distance is calculated in real time from the propagation time of the GPS satellite signal transmitted from S3, and the current position information of the two-dimensional or three-dimensional moving body is calculated. This current position information is, for example, position information based on longitude-latitude data.

The control unit 6 includes a CPU (Central Processing).
Unit), ROM (Read Only Memory) 11 and RAM
(Random Access Memory) 12 and the like, ROM 11
Stores a program as the navigation device 3, a processing program for detecting the traveling state, storing the traveling state and displaying the traveling state, a transmission / reception processing processing program for navigation data with other navigation devices 3, system data, etc. To do.

The RAM (storage means) 12 is used as a work memory and stores group data for each group A, B, ... As shown in FIGS. 3 and 4, and the group data is, for example, , The group A, B,
Is composed of a member name (MEMBER), a calling number for communication, and transmission data (navigation data).

The control unit 6 controls each unit of the navigation device 3 to synthesize the current position of the moving body on the map data stored in the map data storage unit 8 which will be described later and display the same on the display unit 9 or input. The setting data of the navigation data set and input by the unit 10 is stored, necessary navigation data is transmitted to the other navigation device 3, or the navigation data transmitted from the other navigation device 3 is received and set.

The map data storage unit 8 is, for example, a CD-R.
A CD-ROM equipped with an OM driver and storing map information of Japan in various scales is mounted. This map information can be searched by latitude and longitude. The map data storage unit 8 operates under the control of the control unit 6 to read out and output the map data stored in the CD-ROM which is a storage medium.

The display unit 9 uses, for example, a liquid crystal display device, displays the current positions of the moving bodies 2a, 2b, ... With map data, and displays the moving state of the moving body which will be described later. Various input data is displayed by the input unit 10.

The input unit 10 is provided with keys for inputting various data and attribute information, such as a ten-key pad and an asterisk key, and the control unit 6 scans the key operation of the input unit 10. Various processes corresponding to the key input are performed. That is, the user of the navigation device 3 uses the input unit 10 to input a current position and a destination position, select a desired route from a plurality of routes from the current position to the destination position, and specify a transmission partner of the navigation data. Input various commands such as transmission instructions. The wireless unit 5
It performs transmission / reception processing with another navigation device 3, and the antenna 4 transmits / receives a radio wave signal with another navigation device 3.

That is, when the antenna 4 receives the radio signal from the other navigation device 3, it outputs it to the radio unit 5, and the radio unit 5 converts the radio signal input from the antenna 4 into a predetermined signal form. Output to the control unit 6. The wireless unit 5 also converts a transmission command or navigation data input from the control unit 6 into a predetermined signal form, and causes the antenna 4 to transmit the signal as a radio signal.

Therefore, the antenna 4 and the radio section 5 are provided.
Generally functions as a transmission unit that transmits navigation data to another navigation device 3 and a reception unit that receives navigation data transmitted from another navigation device 3.

Next, the operation of this embodiment will be described. The navigation device 3 of this embodiment includes GPS satellites GS1 and GS.
2, GS3, ... to obtain the current position of the moving body from the GPS satellite signals, not only to display the current position on the map information, but also to send navigation data to and from other navigation devices 3. The characteristic is that the navigation data set by one navigation device 3 can be received and shared with another navigation device 3.

When a plurality of moving bodies 2a, 2b, ... Use the navigation device 3 to move from the same current position to the same destination position through the same route, one moving body 2a, 2b. ..., for example, when navigation data is set by the navigation device 3 mounted on the moving body 2a, the same navigation data is transmitted to the navigation devices 3 mounted on the other moving bodies 2b, 2c ,. And can be set.

That is, in the navigation device 3 of the mobile unit 2a for setting data, as shown in FIG.
The user of the navigation device 3 sets the navigation data through the input unit 10 (step S).
1). In the setting of this navigation data, the current position as the starting position and the destination position are input, and the route to be used is selected.

That is, when the current position and the destination position are input, the navigation device 3 receives various routes from the current position to the destination position, for example, the route X with the shortest distance and the route with the shortest time as shown in FIG. Y or the like is calculated and displayed on the display unit 9, and the user of the navigation device 3 sees the display of the route and selects the route to be used, for example, the route X from the input unit 10. The navigation device 3 causes the display unit 9 to display and output the selected route, for example, the route X. The route may be selected by previously inputting the route with the shortest distance at the same time when the current position and the target position are input.

Next, the navigation device 3 outputs a selection display as to whether or not to perform group transmission on the display unit 9,
According to this display, the user of the navigation device 3
When an input operation as to whether or not to perform group transmission is performed from the input unit 10, processing according to the input operation is performed (step S
2).

That is, when the group transmission is designated, the navigation device 3 waits until the group number is input next (step S3), and then the group data registered in the input group number (see FIG. 3 and FIG. 4) is read from the RAM 12 and a transmission process is performed.

That is, the RAM 12 is stored in the RAM 12 shown in FIGS.
As shown in, the member name, calling number and transmission data are stored for each group A, B, ..., The transmission data is data such as destination position, current position and route as navigation data. Of these, it is data indicating the content of which data is to be transmitted.

The group data is input from the input unit 10 in advance and stored in the RAM 12. Further, the transmission data set in the group data shown in FIGS. 3 and 4 may not be sent as it is, but the transmission data selected by the input unit 10 may be sent.

Then, the navigation device 3 performs a calling process for the calling numbers registered in the designated groups A, B, ... (Step S4), and the other navigation device 3 responds to the call. , The navigation data having the content corresponding to the transmission data registered in the designated group data is transmitted to the other navigation device 3 (step S5). The transmission data may include date / time data, message data input from the input unit 10, and the like. The calling process and the data transmission process are sequentially performed on the navigation devices 3 of the members registered as the transmission data of the designated groups A, B, ....

The transmission method is not limited to this, and the group identification data and the navigation data are transmitted, and this data is received by another navigation device, and the group identification data identifies the group to which the user belongs. The navigation data corresponding to the group identification data that is data may be fetched and set. In this case, the group data in FIGS. 3 and 4 is composed of identification data and transmission data (navigation data), and the receiving side navigation device stores the group identification data to which it belongs.

If the group transmission is not designated in the above step S2, the display prompting the input of the calling number is displayed on the display unit 9 and the input of the calling number is waited (step S2).
6) When the calling number is input, next, a display prompting the input of the transmission data is displayed on the display unit 9 and the input of the transmission data is waited (step S7).

As described above, the input of the transmission data designates which navigation data is to be transmitted as the navigation data. For example, whether the navigation data to be transmitted is only the destination position or the destination position. This is data that specifies whether or not to also transmit the route and the current position, the destination position, and the route. Also, message data and the like can be included in the transmission data.

When the transmission data is input in step S7, the calling number input in step S6 is sent to the radio unit 5 to call the navigation device 3 of the other party (step S4), and the navigation device 3 of the other party. When the call is answered, the designated navigation data is transmitted (step S
5).

As shown in FIG. 7, the navigation devices 3 of the other mobile units 2b, 2c, ... Check at a predetermined cycle whether there is a call (step P1). Then, the transmitted navigation data is received via the antenna 4 and the wireless unit 5 (step P2). The other navigation device 3 performs a navigation data setting process based on the received navigation data (step P3).

As described above, according to this embodiment, the moving body 2
Navigation device 3 mounted on a, 2b, ...
Performs various setting operations required for various navigation processes such as the current position, the target position, and the route by the input unit 10 which is an operation unit, and other navigation such as the navigation data and the map data set by the input unit 10. Various navigation data necessary for processing are stored in the map data storage unit 8 and the RAM 12 which are storage means.
Predetermined navigation data among the stored navigation data is transmitted to another navigation device 3 under the control of the control unit 6 which is the control unit, via the radio unit 5 which is the transmission unit and the antenna 4.

Therefore, one navigation device 3
The navigation data set in step 1 can be transmitted to the other navigation devices 3 so that the navigation data can be shared by the other navigation devices 3, and the labor for setting the navigation data in all the navigation devices 3 can be saved. It is possible to prevent the setting mistake of the navigation data and improve the usability of the navigation device 3.

Further, according to the present embodiment, when the input unit 10 specifies the navigation data to be transmitted to the other navigation device 3 among the various navigation data, the navigation specified by the input unit 10 among the navigation data. Since the data is transmitted to the other navigation device 3, only necessary navigation data can be transmitted, and necessary and sufficient navigation data can be transmitted in a short transmission time.

Further, according to this embodiment, when a plurality of other navigation devices 3 are stored as a group and the groups A, B, ... Are designated as the destinations of the navigation data, the designated group A is designated. , B, ..., The navigation data is sequentially transmitted to each of the navigation devices 3 in the group, so that the same navigation data can be transmitted to the navigation devices 3 in the group that act together. Can be shared easily and easily. Further, according to the present embodiment, the navigation data transmitted from the other navigation device 3 is received by the antenna 4 and the wireless unit 5, and the received navigation data and other various navigation data necessary for the navigation processing, It is stored in the map data storage unit 8 and the RAM 12. Then, the control unit 6 sets the navigation data necessary for the navigation processing based on the received navigation data.

Therefore, the same navigation data as that of the other navigation device 3 can be set without performing the operation of setting the navigation data one by one, and a mistake in setting the navigation data can be prevented. The navigation data set in can be shared.

Further, according to the navigation system 1 of the present embodiment, the navigation device 3 is mounted on each of the plurality of moving bodies 2a, 2b, ..., And each navigation device 3 has each moving body 2a, 2b ,. .. are generated and displayed on a map, but at least one of the plurality of navigation devices 3
However, when performing various setting operations necessary for various navigation processes such as the current position, the target position, and the route, the various navigation data necessary for other navigation processes such as the set navigation data and map data are stored. Predetermined navigation data among the stored navigation data is transmitted to another navigation device 3.

Then, the other navigation device 3 receives the transmitted navigation data and sets the navigation data necessary for the navigation process based on the received navigation data.

Therefore, when the navigation data is set by at least one navigation device 3, it is possible to prevent the navigation data input error without performing the navigation data setting operation for each of the other navigation devices 3. The other navigation devices 3 can share the same navigation data, and the usability of the navigation system can be improved.

In each of the above-mentioned embodiments, the present invention is applied to the one in which the own position information is acquired by GPS, but the present invention is not limited to this. For example, a self-contained navigation system using a gyro sensor or a beacon (sign Road Traffic Information Communication System (VICS)
For example, the position information of the self may be acquired by such means.

Further, in the above embodiment, the radio unit is formed integrally with the navigation device, but the present invention is not limited to this, and the navigation device and the radio unit may be formed separately. In this case, the wireless unit is composed of, for example, a wireless communication device, the navigation device outputs identification data for identifying another navigation device and the navigation data, and the wireless communication device uses the output identification data to identify the other. The navigation device is called to send navigation data.

[0060]

According to the navigation device of the invention described in claim 1, the navigation device mounted on the moving body uses the operating means to perform various setting operations necessary for various navigation processes such as the current position, the target position and the route. And then
Various kinds of navigation data such as the navigation data and the map data set by the operation means are stored in the storage means. Predetermined navigation data among the navigation data stored in this storage means is output under the control of the control means together with the identification data of other navigation devices.

Therefore, the navigation data set by the operating means in one navigation device can be transmitted to the other navigation devices so that the navigation data can be shared by the other navigation devices, and the navigation data can be shared by all the navigation devices. It is possible to save the trouble of setting, prevent missetting of navigation data, and improve the usability of the navigation device.

In this case, for example, when the control means designates the navigation data to be output among the various navigation data by the operating means, the control means stores the navigation data in the storage means. Among the navigation data, if the necessary navigation data is output based on the designation by the operation means, only the necessary navigation data can be transmitted, and the necessary and sufficient navigation data can be transmitted in a short transmission time. it can.

Further, for example, as described in claim 3, the storage means stores identification data of the other plurality of navigation devices as a group, and the control means stores the navigation data by the operation means. When a group stored in the storage means is designated as an output destination, each navigation device of the designated group is caused to output the identification data and the navigation data, and the group that acts together. The same navigation data can be transmitted to the navigation devices inside the same, and the same navigation data can be easily and easily shared within the group.

Further, for example, as described in claim 4, when the navigation data to be output corresponding to the group stored in the storage means is stored,
It is possible to efficiently transmit the shared navigation data to the navigation devices in the group that are taking action.

According to the navigation device of the present invention, the receiving means receives the navigation data transmitted from the other navigation device, and the received navigation data and other various navigation data necessary for the navigation processing. Is stored in the storage means. Then, the control means sets the navigation data necessary for the navigation processing based on the received navigation data.

Therefore, it is possible to set the same navigation data as that of another navigation device without performing the operation of setting the navigation data one by one, and it is possible to prevent the setting error of the navigation data from being set by another navigation device. Navigation data can be shared. As a result, the usability of the navigation device can be improved.

According to the navigation system of the invention described in claim 6, when a navigation device is mounted on each of a plurality of moving bodies, and each navigation device generates a current position of each moving body and displays it on a map, When at least one navigation device of the plurality of navigation devices performs various setting operations necessary for various navigation processes such as the current position, the target position and the route by the operating means, the navigation data set by the operating means and Various navigation data necessary for other navigation processing such as map data is stored in the storage means, and the control means transmits predetermined navigation data among the navigation data stored in the storage means from the transmission means to another navigation device. Let

Then, the other navigation device receives the navigation data transmitted from the navigation device provided with the transmitting means by the receiving means, and receives the received navigation data and other various navigation data necessary for the navigation processing. It is stored in the storage means. The control means sets the navigation data necessary for the navigation processing based on the received navigation data.

Therefore, when the navigation data is set by at least one navigation device, the operation of setting the navigation data is not performed by the plurality of other navigation devices one by one, and the input error of the navigation data is prevented, and the other plural navigation devices are set. The same navigation data can be shared by the navigation devices, and the usability of the navigation system can be improved.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of a navigation system to which an embodiment of a navigation device and a navigation system of the present invention is applied.

FIG. 2 is a block configuration diagram of a navigation device mounted on the moving body in FIG.

3 is a diagram showing an example of group data stored in a RAM shown in FIG.

FIG. 4 is a diagram showing another example of group data stored in the RAM of FIG.

5 is a flowchart showing a navigation data transmission process by the navigation device of FIG.

FIG. 6 is a diagram showing an example of various directions from a current position to a destination position.

7 is a flowchart showing a navigation data receiving process by the navigation device of FIG.

[Explanation of symbols]

 1 Navigation system 2a, 2b, ... Mobile body 3 Navigation device 4 Antenna 5 Radio part 6 Control part 7 GPS receiver 8 Map data storage part 9 Display part 10 Input part 11 ROM 12 RAM

Claims (6)

[Claims] 1. A navigation device, which is mounted on a mobile body, generates a current position of the mobile body and displays the current position on a map, and performs various setting operations necessary for various navigation processes such as a current position, a target position and a route. Operating means for performing, storage means for storing various navigation data necessary for other navigation processing such as navigation data and map data set by the operating means, and predetermined navigation data among the navigation data stored in the storage means. A navigation device comprising: control means for outputting navigation data together with identification data of another navigation device. 2. The control means, when the navigation data to be output out of the various navigation data is designated by the operating means, based on the designation by the operating means of the navigation data stored in the storage means. The navigation device according to claim 1, wherein the necessary navigation data is output. 3. The storage means stores identification data of the other plurality of navigation devices as a group, and the control means is stored in the storage means as an output destination of the navigation data by the operation means. The navigation device according to claim 1 or 2, wherein when a group is designated, the identification data and the navigation data are output to the respective navigation devices of the designated group. 4. The navigation device according to claim 3, wherein navigation data to be output corresponding to the group stored in the storage means is stored. 5. A navigation device which is mounted on a mobile body and which generates a current position of the mobile body and displays it on a map, the receiving means receiving navigation data transmitted from another navigation device, Storage means for storing the navigation data received by the receiving means and various navigation data necessary for other navigation processing; control means for setting the navigation data necessary for the navigation processing based on the navigation data received by the receiving means; A navigation device comprising: 6. A navigation system in which a navigation device is mounted on each of a plurality of moving bodies, each navigation device generating a current position of each moving body and displaying the current position on a map, at least one of the navigation devices. One navigation device is used for operating means for performing various setting operations necessary for various navigation processing such as current position, destination position, and route, and for other navigation processing such as navigation data and map data set by the operating means. Storage means for storing various types of navigation data, transmission means for transmitting the navigation data stored in the storage means to another navigation device, and predetermined navigation data among the navigation data stored in the storage means Other navigation than transmission means Control means for transmitting the navigation data to the navigation device, and the other navigation device of the navigation devices receives the navigation data transmitted from the navigation device including the transmission means, and receives by the receiving means. Storage means for storing the various navigation data necessary for the navigation processing and other navigation data, and a control means for setting the navigation data necessary for the navigation processing based on the navigation data received by the receiving means. Navigation system characterized by.