JP2006300655A - Group travel navigation method, group travel navigation system, navigation device, and information center - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To compare a route searched by a navigation device of own vehicle with an up-to-date master route in all the navigation devices of group travel vehicles, and to display easily understandingly a portion different in the route, based on a comparison result therein. <P>SOLUTION: This navigation device for the group travel set vehicle compares a route search result in the own device with the master route (step S512), when receiving the master route (step S511), and displays a differential route in the comparison result while superposing it on the route search result in the own device (step S513). <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to a group travel navigation method, a group travel navigation system, a navigation apparatus, and an information center, and more particularly to a group travel navigation system, a group travel navigation system, a navigation apparatus, and an information center for guiding group travel of a plurality of vehicles.

Some conventional navigation devices are provided with a function (communication service) for displaying each vehicle position on a map when the same destination is set in the navigation devices of a plurality of vehicles and the group travels. For example, Patent Document 1 discloses a technique for displaying the positions of the host vehicle and other vehicles on a map and displaying the order of approach in the order of closest to the common destination. However, when multiple vehicles are traveling in a group using such a function, the hardware version of the navigation device (navigation device version) and the version of the map being used (map information version) Needless to say, the route search results differ depending on the difference in). For this reason, the device which absorbs the difference of the navigation apparatus version and map information version between the navigation apparatuses of each vehicle, and displays the same route search result on the navigation apparatus of each vehicle is needed.

However, in the conventional navigation device, the current map data is compared with the traveling locus of the vehicle, and when the difference data is at a qualified level, the map correction location of the group to which the difference data belongs can be known at the information center. Although there was a technique (see, for example, Patent Document 2), it was not compatible with group traveling of a plurality of vehicles.

In addition, in a conventional navigation device, there is a map update method in which old data portions on a route are updated at once when a route search is performed, and in other cases, the data is dynamically changed according to the driving situation. Although known (see, for example, Patent Document 3), this also does not correspond to group traveling of a plurality of vehicles.

Furthermore, the conventional navigation device compares the map information of the server device with the map information held by the terminal device, and there is a technology for updating the map information when the versions are different. This is a vehicle route search, and the updated part of the map is limited to a part different from the master route (see, for example, Patent Document 4), and this also does not correspond to group traveling of a plurality of vehicles. It was.
JP-A-9-210701 JP 2004-198997 A JP 2004-295207 A JP 2004-309705 A

As described above, the conventional navigation device has a function of displaying the vehicle position information of each other when the same destination is set in the navigation device of a plurality of vehicles and the group travels. Depending on the difference between the navigation device version and the map information version, the route search results are different, and the travel route is displayed differently, and the position of other vehicles cannot be displayed on the road.

The first problem of the present invention is to compare the route search results in the navigation device of each vehicle and set each destination based on the comparison result when the same destination is set in the navigation device of a plurality of vehicles and the group travels. It is an object of the present invention to provide a group traveling navigation method in which different parts of a route are displayed in an easy-to-understand manner on a vehicle navigation device.

A second object of the present invention is to provide a group travel navigation system that realizes the group travel navigation method.

A third object of the present invention is to provide a navigation device that implements the group travel navigation method.

A fourth object of the present invention is to provide an information center that enables the group traveling navigation method.

Means for Solving the Problems and Effects of the Invention

The group travel navigation method according to claim 1 performs the group travel by setting the same destination in the navigation device for a plurality of vehicles, and further performs the setting to display the vehicle position information of the plurality of vehicles. -Even if the navigation device of the vehicle that requested the vehicle position confirmation receives the navigation device version, the map information version, and the route search result from the navigation device of each vehicle, the latest map information version or the map information version is the same. The route search result searched by the navigation device of the new navigation device version is transmitted as a master route to the navigation device of each vehicle, and the navigation device of each vehicle receives the master route and compares it with the route search result in its own device. , Different parts of the route based on the comparison results Characterized in that it displays. According to the group travel navigation method of the first aspect, the route search result in the own device is compared with the master route on the navigation device of each vehicle, and different parts of the route are displayed in an easy-to-understand manner based on the comparison result. As a result, there is no inconvenience that different travel paths are displayed between the navigation devices of vehicles traveling in groups.

The group travel navigation method according to claim 2 is configured to perform the group travel by setting the same destination in the navigation device for a plurality of vehicles and further to display the vehicle position information for the plurality of vehicles. Receives the navigation device version, the map information version, and the route search result of the navigation device of each vehicle, and the route searched by the navigation device of the newer navigation device version even if the latest map information version or the map information version is the same. The search result is transmitted as a master route to the navigation device of each vehicle, the navigation device of each vehicle receives the master route, compares the route search result in its own device with the master route, and based on the comparison result A different part of the route is displayed. According to the group travel navigation method of the second aspect, the route search result in the own device is compared with the master route on the navigation device of each vehicle, and different portions of the route are easily displayed based on the comparison result. As a result, there is no inconvenience that different travel paths are displayed between the navigation devices of vehicles traveling in groups.

The group travel navigation method according to claim 3 is the group travel navigation method according to claim 1 or 2, wherein the navigation device of each vehicle has a master route link information in its own map information. The route is displayed so as to overlap the route searched by the own device. According to the group travel navigation method of the third aspect, since the master route is displayed superimposed on the route searched by the own device, the user (driver, etc.) of each vehicle arrives at the destination without making a mistake in the travel route. can do.

The group travel navigation method according to claim 4 is the group travel navigation method according to claim 1 or 2, wherein the navigation device of each vehicle has a master route information when there is no link information of the master route in its own map information. Display that there is a difference between the route search result in the own device and the master route at the start point of the route, and display that it is a merging point at the merging point of the route searched by the own device and the master route Features. According to the group travel navigation method of claim 4, it is displayed that there is a difference between the route search result in the own device and the master route at the start point of the master route, and the route searched by the own device and the master route Therefore, the user of each vehicle can arrive at the destination without making a mistake in the travel path.

The group travel navigation method according to claim 5 is the group travel navigation method according to claim 1 or 2, wherein the navigation device of each vehicle has a master route information when there is no link information of the master route in the map information of the own device. The route from the starting point of the route to the joining point of the route searched by the own device and the master route is displayed by connecting the arrow line segments. According to the group travel navigation method of the fifth aspect, the route from the start point of the master route to the junction point of the route searched for by the own device and the master route is displayed by connecting the arrow line segments. The user can arrive at the destination without making a mistake in the travel route.

The group travel navigation system according to claim 6, wherein a version request receiving means for receiving a version request from an information center, and a version for returning a navigation device version, a map information version and a route search result to the information center in response to the version request. Based on the reply means, the version receiving means for receiving the navigation device version, the map information version and the route search result of the navigation device of each vehicle transferred from the information center, and the navigation device version, the map information version and the route search result Even if the latest map information version or the map information version is the same, the route search result searched with the navigation device of the newer navigation device version is determined as the master route. Route determining means, master route transmitting means for transmitting the master route to the information center, master route receiving means for receiving the master route from the information center, route search results in the own device, and the master route A navigation device having a route comparison means for comparison and a comparison result display means for displaying a comparison result compared by the route comparison means, and when there is a destination / vehicle position confirmation request from a navigation device of any vehicle Version request transmitting means for transmitting a version request to the navigation device of the vehicle; version receiving means for receiving the navigation device version, map information version and route search result from the navigation device of each vehicle; the navigation device version, the map information version, and The route search result is Version transfer means for transferring to both navigation devices, master route receiving means for receiving a master route from the navigation device of any vehicle, and master route transfer means for transferring the master route to the navigation device of each vehicle And an information center. According to the group travel navigation system of the sixth aspect, when a plurality of people go to the same destination with different vehicles, the same destination is set in each navigation device, and vehicle position information of the plurality of vehicles is further obtained. When setting to display, the navigation device of the vehicle that has sent the destination / vehicle position confirmation request displays the navigation device version and map information version of the navigation device of each vehicle and the route search result to the destination. The route search result received by the navigation device of the newer navigation device version even if the latest map information version or the map information version is the same is sent to the navigation device of each vehicle as a master route, The vehicle navigation system By comparing the route search result and the master path, the display clarity of different parts of the route based on the comparison result.

The group travel navigation system according to claim 7, wherein a version request receiving means for receiving a version request from an information center, and a version for returning a navigation device version, a map information version and a route search result to the information center in response to the version request. Based on the reply means, the version receiving means for receiving the navigation device version, the map information version and the route search result of the navigation device of each vehicle transferred from the information center, and the navigation device version, the map information version and the route search result Even if the latest map information version or the map information version is the same, the route search result searched with the navigation device of the newer navigation device version is determined as the master route. A navigation apparatus comprising: a route determination unit; a route comparison unit that compares a route search result in its own device with the master route; and a comparison result display unit that displays a comparison result compared by the route comparison unit; Version request transmission means for transmitting a version request to the navigation device of each vehicle when a destination / vehicle position confirmation request is received from the vehicle navigation device, and the navigation device version, map information version and route search from the navigation device of each vehicle Version receiving means for receiving results, version transfer means for transferring the navigation device version, map information version and route search results to the navigation device of any vehicle, receiving version receiving means, and the master route for each vehicle Navigation equipment Characterized in that it consists of the information center and a master path transmission means for transmitting to. According to the group travel navigation system of the seventh aspect, when a plurality of people go to the same destination with different vehicles, the same destination is set in each navigation device, and vehicle position information of the plurality of vehicles is further obtained. When setting the information to be displayed, the information center receives the navigation device version and map information version of the navigation device of each vehicle and the route search result to the destination from the navigation device of each vehicle, and the latest map information version. Or, even if the map information version is the same, the route search result searched with the navigation device of the newer navigation device version is sent as a master route to the navigation device of each vehicle, and the navigation device of each vehicle receives the master route. Compare with the route search result on your device, To clearly display a different portion of the path based on the comparison result.

The group travel navigation system according to claim 8 is the group travel navigation system according to claim 6 or claim 7, wherein the comparison result display means includes a master route link information in the map information of its own device. The route is displayed so as to overlap the route searched by the own device. According to the group travel navigation system of the eighth aspect, since the master route is displayed so as to overlap the route searched by the own device, the user understands the difference between the route search result by the own device and the master route at a glance. be able to.

The group travel navigation system according to claim 9 is the group travel navigation system according to claim 6 or claim 7, wherein the comparison result display means is configured such that when there is no link information of the master route in the map information of its own device, Display that there is a difference between the route search result in the own device and the master route at the start point of the route, and display that it is a merging point at the merging point of the route searched by the own device and the master route Features. According to the group travel navigation system of claim 9, it is displayed that there is a difference between the route search result in the own device and the master route at the start point of the master route, and the route searched by the own device and the master route Therefore, the user can easily recognize that there is a difference between the route search result in the own device and the master route.

The group travel navigation system according to claim 10 is the group travel navigation system according to claim 6 or 7, wherein the comparison result display means is configured such that the master route link information is not included in the map information of the own device. The route from the starting point of the route to the joining point of the route searched by the own device and the master route is displayed by connecting the arrow line segments. According to the group travel navigation system of the tenth aspect, the route from the start point of the master route to the junction point of the route searched for by the own device and the master route is displayed by connecting the arrow line segments. It is possible to easily recognize the difference between the route search result in the own device and the master route.

12. A navigation apparatus according to claim 11, wherein a version request receiving means for receiving a version request from an information center, and a version reply means for returning a navigation apparatus version, a map information version and a route search result to the information center in response to the version request. And a version receiving means for receiving the navigation device version, map information version and route search result of the navigation device of each vehicle transferred from the information center, and the latest based on the navigation device version, map information version and route search result Route determination means for determining a route search result searched with a navigation device of a newer navigation device version as a master route even if the map information version or the map information version is the same A master route transmitting means for transmitting the master route to the information center; a master route receiving means for receiving the master route from the information center; and a route comparison for comparing a route search result in the own device with the master route. And a comparison result display means for displaying a comparison result compared by the path comparison means. According to the navigation device of the eleventh aspect, when a plurality of people go to the same destination with different vehicles, the same destination is set in each navigation device, and vehicle position information of the plurality of vehicles is displayed. In such a setting, the navigation device of the vehicle that sent the destination / vehicle position confirmation request sends the navigation device version and map information version of the navigation device of each vehicle and the route search result to the destination to the navigation of each vehicle. Even if the latest map information version or the same map information version is received from the device, the route search result searched with the navigation device of the newer navigation device version is sent to the navigation device of each vehicle as the master route. The navigation device receives the master route Compared with the route search result in the self-device, to clearly display a different portion of the path based on the comparison result.

13. A navigation apparatus according to claim 12, wherein a version request receiving means for receiving a version request from an information center, and a version reply means for returning a navigation apparatus version, a map information version and a route search result to the information center in response to the version request. A master route receiving unit that receives a master route from the information center, a route comparison unit that compares a route search result in the own device with the master route, and a comparison that displays a comparison result compared by the route comparison unit And a result display means. According to the navigation device of claim 12, when a plurality of people go to the same destination with different vehicles, the same destination is set in each navigation device, and vehicle position information of the plurality of vehicles is further displayed. In such a setting, the information center receives the navigation device version and map information version of the navigation device of each vehicle and the route search result to the destination from the navigation device of each vehicle, and the latest map information version or map Even if the information version is the same, the route search result searched by the navigation device of the newer navigation device version is sent to the navigation device of each vehicle as the master route, and the navigation device of each vehicle receives the master route and receives its own device. Compared to the route search result in Zui to display an easy-to-understand different parts of the path.

The navigation device according to claim 13 is the navigation device according to claim 11 or 12, wherein the comparison result display means sets the master route to the own device when the map information of the own device includes link information of the master route. It is characterized by being displayed superimposed on the route searched in step (1). According to the navigation device of the thirteenth aspect, since the master route is displayed so as to overlap the route searched by the own device, the user can understand the difference between the route search result in the own device and the master route at a glance. it can.

The navigation device according to claim 14 is the navigation device according to claim 11 or claim 12, wherein the comparison result display means has a master route start point when the map information of the device does not include link information of the master route. In addition, it is displayed that there is a difference between the route search result in the own device and the master route, and that a merge point is displayed at the merge point between the route searched by the own device and the master route. According to the navigation device of the fourteenth aspect, it is displayed that there is a difference between the route search result in the own device and the master route at the start point of the master route, and between the route searched by the own device and the master route. Since the merge point is displayed at the merge point, the user can easily recognize that there is a difference between the route search result in the own device and the master route.

The navigation device according to claim 15 is the navigation device according to claim 11 or claim 12, wherein the comparison result display means is a start point of the master route when the map information of the device does not include link information of the master route. The route from the route to the merge point of the route searched by the own device and the master route is displayed by connecting the arrow line segments. According to the navigation device of the fifteenth aspect, since the route from the start point of the master route to the junction point of the route searched for by the own device and the master route is displayed by connecting the arrow segments, the user can The difference between the route search result at and the master route can be easily recognized.

17. The information center according to claim 16, comprising: a version request transmitting means for transmitting a version request to a navigation device of each vehicle when a destination / vehicle position confirmation request is received from a navigation device of any vehicle; and a navigation device of each vehicle. Version receiving means for receiving the navigation device version, map information version and route search result from the above, version transfer means for transferring the navigation device version, map information version and route search result to the navigation device of any vehicle, and the optional A master route receiving means for receiving a master route from the navigation device of the vehicle, and a master route transfer means for transferring the master route to the navigation device of each vehicle. According to the information center of the sixteenth aspect, when a plurality of people go to the same destination with different vehicles, the same destination is set in each navigation device, and vehicle position information of the plurality of vehicles is displayed. In such a setting, the navigation device of the vehicle that sent the destination / vehicle position confirmation request sends the navigation device version and map information version of the navigation device of each vehicle and the route search result to the destination to the navigation of each vehicle. Even if the latest map information version or the same map information version is received from the device, the route search result searched with the navigation device of the newer navigation device version is sent to the navigation device of each vehicle as the master route. The navigation device receives the master route and receives it Compared route search result and, displays clarity different parts of the route based on the comparison result.

18. An information center according to claim 17, comprising: a version request transmitting means for transmitting a version request to a navigation device of each vehicle when a destination / vehicle position confirmation request is received from a navigation device of any vehicle; and a navigation device of each vehicle The version receiving means for receiving the navigation device version, the map information version and the route search result from the navigation device version, the map information version and the route search result, even if the latest map information version or the map information version is the same Master route determining means for determining a route search result searched with a navigation device of a newer navigation device version as a master route, and master route transmitting means for transmitting the master route to the navigation device of each vehicle. And it features. According to the information center of the seventeenth aspect, when a plurality of people go to the same destination with different vehicles, the same destination is set in each navigation device, and vehicle position information of the plurality of vehicles is displayed. In such a setting, the navigation device of the vehicle that sent the destination / vehicle position confirmation request sends the navigation device version and map information version of the navigation device of each vehicle and the route search result to the destination to the navigation of each vehicle. Even if the latest map information version or the same map information version is received from the device, the route search result searched with the navigation device of the newer navigation device version is sent to the navigation device of each vehicle as the master route. The navigation device receives the master route and receives it Compared route search result and, displays clarity different parts of the route based on the comparison result.

Navigation of the vehicle that sent the destination / vehicle position confirmation request when setting the same destination in the navigation device of multiple vehicles to perform group traveling and further displaying the vehicle position information of multiple vehicles The device receives the navigation device version, the map information version, and the route search result to the destination from the navigation device of each vehicle, and the navigation of the newer navigation device version even if the latest map information version or the map information version is the same. The route search result searched by the device is sent as a master route to the navigation device of each vehicle, and the navigation device of each vehicle receives the master route and compares it with the route search result in its own device, and based on the comparison result Display different parts of the route clearly.

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

FIG. 1 is a block diagram showing the configuration of the group travel navigation system according to the first embodiment of the present invention. The group travel navigation system according to the first embodiment includes a navigation device 10 mounted on a plurality of vehicles 1, a mobile phone 160a connected to the navigation device 10, an information center 180 including a group travel vehicle list 185, information The main part is composed of a mobile phone network 190 connecting the center 180 and the mobile phone 160a.

The navigation device 10 has a route search function and a route guidance function, and as shown in FIG. 1, a position detector 110 for detecting the current position of the vehicle 1 and a group of operation switches for inputting various instructions from the user. 120, a remote control terminal (hereinafter referred to as a remote controller) 130a capable of inputting various instructions in the same manner as the operation switch group 120, a remote control sensor 130 for receiving a signal from the remote controller 130a, map data and various types of information. A map data input device 140 for inputting map data and the like from a recorded recording medium (not shown), a display device 145 for displaying various kinds of road maps, a voice input / output device 150 for inputting and outputting various sounds, Data storage device 155 for storing various data such as vehicle information and an interface for performing wired connection with external devices 160, a TV receiver 170 that receives TV (Television) broadcasts, a VICS (vehicle information and communication system) roadside device (not shown), a VICS device 175 that communicates with these various devices, and these various devices. And a control circuit 100 for controlling the apparatus. Reference numeral 160 a denotes a mobile phone connected to the control circuit 100 via the interface unit 160.

The position detector 110 receives a GPS radio wave transmitted from a GPS (Global Positioning System) satellite, calculates a parameter stored in the received GPS radio wave, acquires position data, and an angular velocity. A gyroscope 110b that calculates a direction based on detecting the direction, and acquires direction data indicating the calculated direction; a distance sensor 110c that detects a travel distance and acquires distance data indicating the detected distance; And a geomagnetic sensor 110d that detects direction based on geomagnetism and acquires direction data representing the detected direction, and complements each data acquired by each component to thereby obtain the current position of the vehicle 1 Detecting (specifying) and detecting the traveling direction (specifying). Specifically, the current position of the vehicle 1 is mainly detected by the GPS receiver 110a and the distance sensor 110c, and the traveling direction of the vehicle 1 is detected by the gyroscope 110b and the geomagnetic sensor 110d. Since the position detector 110 has detection errors of different properties, the position detector 110 detects the current position and the traveling direction with high accuracy while interpolating the detection errors with each other. However, the required detection accuracy is required. If it is possible to calculate the current position and the traveling direction, it is not necessary to provide all the components. Depending on the accuracy, it may be constituted by some of the components described above, or a rotation sensor for steering, a wheel sensor for each rolling wheel, or the like may be used.

The operation switch group 120 includes, for example, a mechanical switch provided in a case of the display device 145, a touch switch formed on a color liquid crystal display of the display device 145, and the like, and a control circuit that inputs various data and setting items. 100 is provided for feeding. The remote control sensor 130 is also provided as an input means, and receives an operation input from the remote control 130 a and transmits it to the control circuit 100.

The map data input device 140 includes various kinds of map drawing data, map matching data, map data such as road data as network data, mark data indicating facilities, and guidance image and audio data. This is a device for inputting the data (hereinafter collectively referred to as map information). As a map information recording medium, CD-ROM (Compact Disk-Read Only Memory), DVD-ROM (Digital Versatile Disk-Read Only Memory), HDD (Hard Disk Drive), memory, memory card, etc. can be used. . It is assumed that the map information includes the navigation device version and the map information version of the navigation device 10.

The display device 145 is a color display device, and includes a liquid crystal display, an organic electroluminescence display, a plasma display, a CRT (Cathode Ray Tube), or the like, and any of them may be used. On the display screen of the display device 145, a mark indicating the current position and traveling direction identified from the current position and traveling direction of the vehicle 1 detected by the position detector 110 and the map data input from the map data input device 140 ( Additional data such as current position / direction mark), travel route to the destination (guidance route), name, landmark, and various facility marks can be displayed in a superimposed manner. Also, facility guides can be displayed.

The voice input / output device 150 includes a microphone, a speaker, an amplifier, and the like. The voice input / output device 150 inputs a user's voice command, a facility guide or various guidance voices input from the map data input device 140, and the interface unit 160. It is possible to output a reading voice of the acquired information.

The data storage device 155 is a storage device that stores various data such as vehicle information and route search results. Note that the map information input from the map data input device 140 may be stored in the data storage device 155.

The interface unit 160 enables communication between the navigation device 10 and the information center 180 by connecting the mobile phone 160a as an external device by wire. In the first embodiment, the mobile phone 160a is used as a means for enabling communication between the navigation device 10 and the information center 180. Instead, however, DCM (Data Communication) is used.
Module) or the like can also be used. Also, a PDA (Personal Digital Assistant) portable terminal can be used instead of the cellular phone 160a.

The TV receiver 170 is a device that receives a TV broadcast and reproduces it on the display device 145 and the audio input / output device 150.

The VICS device 175 includes a VICS sensor and an FM (Frequency Modulation) tuner, and controls, for example, an information signal from an optical / radio wave beacon received by the VICS sensor or an information signal from FM multiplex broadcasting received by the FM tuner. The circuit 100 is configured to provide the control circuit 100 with an FM broadcast signal received via a radio antenna, a radio beacon signal and an optical beacon signal received from a fixed station for VICS service arranged near the road. input. Further, the VICS device 175 is configured to have a function of transmitting vehicle information to the outside.

The control circuit 100 includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), an I / O (Input / Output), and a bus line (not shown) for connecting these components. It is configured around a well-known microcomputer consisting of the above, and executes various controls based on a navigation program stored in a ROM or the like. In addition, the current position and the traveling direction of the vehicle 1 are calculated based on each detection signal from the position detector 110, the road map near the current position read via the map data input device 140, the operation switch group 120, Based on the map display processing for displaying a road map or the like in the range instructed by the operation of the remote controller 130a or the like on the display device 145, the point data stored in the map data input device 140, according to the operation of the operation switch group 120 or the remote controller 130a or the like. Destination selection processing for setting a destination, route search processing for automatically obtaining an optimal route from the current position to the destination by a method such as Dijkstra method, route guidance processing for performing route guidance using the searched route, etc. I do. The RAM temporarily stores temporary data at the time of program execution, map data acquired from the map data input device 140, and the like.

FIG. 2 is a diagram illustrating an example of an input screen displayed on the display device 145 in order to perform initial setting of group travel. The user operates the operation switch group 120, the remote controller 130a, etc., and the owner of the mobile phone 160a connected to one or more vehicles 1 that wants to travel in a group from the input screen displayed on the display device 145. You can enter your name, phone number and email address.

FIG. 3 is a diagram illustrating an entry in the group traveling vehicle list 185 of the information center 180. Each entry includes fields of the name, telephone number, mail address, group travel setting flag, vehicle position non-display flag, and vehicle position non-display target name of the owner of the mobile phone 160a.

Referring to FIG. 4, the processing at the time of the group travel setting request of the navigation device 10 includes an input screen display step S101, a group travel vehicle list creation step S102, a group travel setting request transmission step S103, and a group travel availability confirmation request transmission. Step S104, group travel setting permission / rejection notification reception step S105, permission / rejection determination step S106, group travel setting permission flag OFF step S107, group travel setting permission flag ON step S108, vehicle position non-display determination step S109, vehicle position non-display flag ON step S110, all group travel permission flag setting determination step S111, predetermined time elapsed determination step S112, unset group travel setting flag OFF step S113, group And a travel setting request transmitting step S114 Prefecture.

Referring to FIG. 5, the processing when the information center 180 receives the group travel setting request includes a group travel setting request reception step S201, a group travel vehicle list storage step S202, and a group travel setting request transfer step S203.

Referring to FIG. 6, the process when the navigation device 10 receives the group traveling vehicle list includes a group traveling setting list receiving step S301 and a group traveling vehicle list storing step S302.

Referring to FIG. 7, the processing when the information center 180 receives a group travel availability confirmation request includes a group travel availability confirmation request reception step S211 and a group travel availability confirmation transfer step S212.

Referring to FIG. 8, the process at the time of receiving the group travel availability confirmation request of navigation device 10 includes group travel availability confirmation request reception step S311, group travel vehicle list and group travel availability confirmation request display step S312, and group travel setting permission. / Reject notification reply step S313.

Referring to FIG. 9, the processing when the information center 180 receives the group travel setting permission / rejection notification includes a group travel setting permission / rejection notification reception step S221 and a group travel setting permission / rejection notification transfer step S222.

Referring to FIG. 10, the processing at the time of transmission of the destination / vehicle position confirmation request of the navigation apparatus 10 includes a destination / vehicle position confirmation request transmission step S401, a map information version reception step (version receiving means) S402, a master Route determination step (master route determination means) S403, master route transmission step (master route transmission means) S404, route search result / master route comparison step (route comparison means) S405, difference route overlap display step (comparison result display) Means) S406.

Referring to FIG. 11, the processing at the time of receiving the destination / vehicle position confirmation request of information center 180 includes destination / vehicle position confirmation request reception step S231, version request transmission step (version request transmission means) S232, and map information. A version reception step (version reception means) S233 and a map information version transfer step (version transfer means) S234 are included.

Referring to FIG. 12, the process at the time of receiving the version request of the navigation apparatus 10 includes a version request receiving step (version request receiving means) S501 and a map information version returning step (version returning means) S502.

Referring to FIG. 13, the processing at the time of master route reception by the information center 180 includes a master route reception step (master route reception means) S241 and a master route transfer step (master route transfer means) S242.

Referring to FIG. 14, the navigation device 10 performs a master route reception process including a master route reception step (master route reception unit) S511, a route search result / master route comparison step (route comparison unit) S512, and a difference route overlap. Display step (comparison result display means) S513.

FIG. 15 is a diagram illustrating an example in which the master route is displayed so as to overlap the route searched by the own device when there is link information in the map information of the navigation device 10 of the own vehicle 1.

FIG. 16 shows that when there is no link information in the map information of the navigation device 10 of the own vehicle 1, there is a difference between the route search result in the own device and the master route at the start point of the master route. It is a figure which shows the example which displays that it is a merge point in the merge point of the path | route and master path which were searched with the apparatus.

FIG. 17 is a diagram in which the arrow line segments are connected to the route from the start point of the master route to the junction point of the route searched for by the own device and the master route when there is no link information in the map information of the navigation device 10 of the own vehicle 1. FIG.

Next, the operation of the group travel navigation system according to the first embodiment configured as described above will be described in detail.

Here, it is assumed that the navigation device 10 of each vehicle 1 can communicate with the information center 180 through the mobile phone 160a.

The navigation device 10 of each vehicle 1 sequentially executes destination setting processing, route searching processing, and route guidance processing for route searching. First, in the destination setting process, the navigation device 10 displays a menu for destination setting on the display device 145 and prompts the user to input a destination. Next, in the route search process, when the navigation device 10 detects that the user has input a destination by operating the operation switch group 120, the remote controller 130a, etc., the current vehicle 1 is detected based on the data obtained from the position detector 110. The position is obtained, the optimum route from the current position to the destination is automatically searched by a technique such as Dijkstra method, and the route search result is stored in the data storage device 155. Subsequently, in the route guidance process, the navigation device 10 displays the route obtained by the route search process in an overlapping manner on the road map displayed on the display device 145, and guides the user to the appropriate route.

(1) Initial setting process for group driving

A navigation device 10 of a vehicle 1 that requests group travel setting (hereinafter referred to as a group travel setting request source vehicle) 1 performs an initial setting for group travel and displays an input screen displayed on the display device 145 (see FIG. 2). ) Prompts the user to input the name, phone number, and mail address of the owner of the mobile phone 160a connected to one or more vehicles 1 that want to travel in a group (step S101).

From the input screen displayed on the display device 145 by the operation of the operation switch group 120, the remote controller 130a, etc., the user has the name and telephone number of the owner of the mobile phone 160a connected to one or more vehicles 1 that wants to travel in groups. And enter your email address. As described above, it is possible to perform the initial setting of the group traveling only by inputting the name, telephone number, and mail address of the owner of the mobile phone 160a such as a family member, a relative, or a friend from the input screen displayed on the display device 145. Thus, one or more vehicles 1 that want to travel in a group can be easily set. In particular, the name, telephone number, and e-mail address of the owner of the mobile phone 160a connected to the vehicle 1 who wants to travel in a group from the address book of the mobile phone 160a connected to the own vehicle 1 are read, and the vehicle from which the group travel setting request is made One navigation device 10 may be selected and set.

When the input by the user is completed, the navigation device 10 of the vehicle 1 that is the group travel setting request source wants to travel in a group based on the name, phone number, and mail address of the owner of the mobile phone 160a input on the input screen by the user. A group traveling vehicle list 185 (see FIG. 3) composed of one or more vehicles 1 to be considered is created (step S102).

Subsequently, the navigation device 10 of the vehicle 1 as the group travel setting request source transmits a group travel setting request including the created group travel vehicle list 185 to the information center 180 through the mobile phone 160a (step S103).

When the information center 180 receives the group travel setting request including the group travel vehicle list 185 (step S201), the information center 180 stores the group travel vehicle list 185 (step S202), and navigation of each vehicle 1 in the group travel vehicle list 185. The group travel setting request including the group travel vehicle list 185 is transferred to the device 10 (step S203).

When the navigation device 10 of each vehicle 1 in the group traveling vehicle list 185 receives a group traveling setting request including the group traveling vehicle list 185 (step S301), the group traveling vehicle list 185 is stored in the data storage device 155 (step S301). S302).

After transmitting the group travel setting request, the navigation device 10 of the vehicle 1 that is the group travel setting request source confirms whether the group travel is possible in the navigation device 10 of each vehicle 1 in the group travel vehicle list 185. A confirmation request is transmitted to the information center 180 through the mobile phone 160a (step S104).

When the information center 180 receives the group traveling availability confirmation request (step S211), the information center 180 transfers the group traveling availability confirmation request to the navigation device 10 of each vehicle 1 in the group traveling vehicle list 185 (step S212).

When the navigation device 10 of each vehicle 1 in the group traveling vehicle list 185 receives the group traveling availability confirmation request (step S311), the group traveling vehicle list 185 and the group traveling availability confirmation request are displayed on the display device 145 to the user. Confirmation is prompted (step S312).

The user sees the group traveling vehicle list 185 and the group traveling availability confirmation request displayed on the display device 145 and inputs whether to allow or reject group traveling of the subject vehicle 1. At this time, if it is not desired to notify the specific vehicle 1 (one or more) in the group traveling vehicle list 185 of the position of the own vehicle 1, this is also input. For example, when Mr. A's vehicle 1 does not want to inform only the Mr. C's vehicle 1 in the group traveling vehicle list 185 of the position of the own vehicle 1, the vehicle position non-display and the vehicle position non-display target name C are input. .

When the input by the user is completed, the navigation device 10 of each vehicle 1 in the group travel vehicle list 185 sends a group travel setting permission notification or a group travel setting rejection notification to the information center 180 through the mobile phone 160a according to the user input. A reply is made (step S313).

When the information center 180 receives the group travel setting permission notification or the group travel setting rejection notification (step S221), the information center 180 transfers the group travel setting permission notification or the group travel setting rejection notification to the navigation device 10 of the vehicle 1 that is the group travel setting request source. (Step S222).

Upon receiving the group travel setting permission notification or the group travel setting rejection notification (step S105), the navigation device 10 of the vehicle 1 as the group travel setting request source determines whether it is a group travel setting rejection notification or a group travel setting permission notification. Determination is made (step S106).

If it is determined that the group travel setting refusal notification has been received (step S106: refusal), the navigation device 10 of the group travel setting request source vehicle 1 turns off the group travel setting flag (step S107), and then controls to step S111. Move. If it is determined that the group travel setting permission notification has been received (step S106: permission), the navigation device 10 of the vehicle 1 as the group travel setting request source turns on the group travel setting flag of the corresponding entry in the group travel vehicle list 185 ( Step S108). Hereinafter, the entry vehicle 1 whose group travel setting flag is ON is appropriately referred to as a group travel setting vehicle 1.

Next, the navigation device 10 of the vehicle 1 that is the group travel setting request source has returned the group travel setting permission notification, but does not display the position of the own vehicle 1 for the specific vehicle 1 (one or more). Is determined to be input (step S109), and if input (step S109: YES), the vehicle position non-display flag of the corresponding entry in the group traveling vehicle list 185 is turned ON. Then, the name of the owner of the mobile phone 160a connected to the specific vehicle 1 (one or more) is written in the vehicle position non-display target name (step S110). If not input (step S109: NO), the navigation device 10 of the vehicle 1 as the group travel setting request source moves the control to step S111.

Subsequently, the navigation device 10 of the vehicle 1 as the group travel setting request source determines whether or not the group travel permission flags of all the entries in the group travel vehicle list 185 have been set (step S111). When the group travel permission flags of all entries in the group travel vehicle list 185 are set (step S111: YES), the navigation device 10 of the vehicle 1 that is the group travel setting request source moves the control to step S114.

If the group travel permission flag of all entries in the group travel vehicle list 185 has not been set (step S111: NO), the navigation device 10 of the vehicle 1 that is the group travel setting request source transmits a group travel permission confirmation request. Whether or not a predetermined time has elapsed (step S112), and if the predetermined time has not elapsed (step S111: NO), the process returns to step S105 to notify the next group travel setting permission notification or group travel setting. Wait for the rejection notification. If the predetermined time has elapsed (step S112: YES), the navigation device 10 of the group travel setting request source vehicle 1 turns off the unset group travel setting flag in the group travel vehicle list 185 (step S113).

Then, the navigation device 10 of the vehicle 1 as the group travel setting request source transmits a group travel setting request including the updated group travel vehicle list 185 to the information center 180 through the mobile phone 160a (step S114).

When receiving the group travel setting request including the group travel vehicle list 185 (step S201), the information center 180 overwrites and stores the group travel vehicle list 185 (step S202), and the group travel setting including the group travel vehicle list 185 is performed. The request is transferred to the navigation device 10 of each vehicle 1 in the group traveling vehicle list 185 (step S203).

When the navigation device 10 of each vehicle 1 in the group travel vehicle list 185 receives a group travel setting request including the group travel vehicle list 185 (step S301), the navigation device 10 stores the group travel vehicle list 185 stored in the data storage device 155. Overwrite and store (step S302).

(2) Destination / vehicle position confirmation request processing

When a user inputs a destination / vehicle position confirmation request to the navigation device 10 by operating the operation switch group 120, the remote controller 130a, or the like in any group travel setting vehicle 1, the navigation device 10 displays the destination / vehicle. A position confirmation request is transmitted to the information center 180 through the mobile phone 160a (step S401). Hereinafter, the navigation device 10 that transmits the destination / vehicle position confirmation request is appropriately referred to as the navigation device 10 of the vehicle 1 that is the destination / vehicle position confirmation request source.

Upon receiving the destination / vehicle position confirmation request (step S231), the information center 180 transmits a version request to the navigation device 10 of each group travel setting vehicle 1 in the group travel vehicle list 185 (step S232).

When the navigation device 10 of each group travel setting vehicle 1 receives the version request (step S501), it searches from the navigation device version, the map information version, the destination, and the vehicle position stored in the data storage device 155. The route search result is returned to the information center 180 through the mobile phone 160a (step S502).

When the information center 180 receives the navigation device version, the map information version, and the route search result from the navigation devices 10 of all the vehicles 1 in the group traveling vehicle list 185 (step S233), the received navigation device version and map information version are received. , And the route search result is transferred to the navigation device 10 of the vehicle 1 as the destination / vehicle position confirmation request source (step S234).

Upon receiving the navigation device version, the map information version, and the route search result (step S402), the navigation device 10 of the vehicle 1 as the destination / vehicle position confirmation request source determines the master route (step S403), and determines the master route. The information is transmitted to the information center 180 through the band telephone 160a (step S404). In the determination of the master route, even if the latest map information version or the map information version is the same, the route search result with a newer navigation device version is used as the master route. Thereafter, the navigation device 10 of the vehicle 1 of the destination / vehicle position confirmation request source compares the route search result in the own device with the master route (step S405), and the difference route of the comparison result is the route in the own device. The search result is displayed on the display device 145 in a superimposed manner (step SS406).

Upon receiving the master route (step S241), the information center 180 transfers the master route to the navigation device 10 of each group travel setting vehicle 1 in the group travel vehicle list 185 (step S242).

When the navigation device 10 of each group travel setting vehicle 1 receives the master route (step S511), it compares the route search result in its own device with the master route (step S512).

The following is assumed as a mode of comparison between the route search result in the own device and the master route.

Since the starting point of the vehicle 1 as the destination / vehicle position confirmation request source and the starting point of the other group travel setting vehicle 1 may be different, the comparison between the route search result in the own device and the master route is the group travel The destination vehicle position confirmation requesting vehicle 1 and other group travel setting vehicles 1 are all started from the first point onward.

When the route 1 of the group travel setting requester vehicle 1 is changed by DRGS (Dynamic Route Guidance System) due to traffic jams or the like, the route comparison described above is performed each time, and drawing according to DRGS is performed. change.

If there is a mismatch between the route search result in the own device and the master route, the user may be notified of this fact and prompted to update the map information.

Since the master route may partially update the map information and partially search the route with the latest map information, it is also possible to create a master route that combines the latest map information for each map section. .

Finally, the navigation device 10 of each group travel setting vehicle 1 displays the difference route of the comparison result on the display device 145 so as to overlap the route search result of its own device (step S513).

For example, the following is assumed as a mode of displaying the difference route of the comparison result superimposed on the route search result in the own device.

When the map information of the navigation device 10 of the host vehicle 1 includes the link information of the master route, the master route is displayed over the route searched by the navigation device 10 of the host vehicle 1 as illustrated in FIG.

When there is no link information of the master route in the map information of the navigation device 10 of the host vehicle 1, “there is a difference in route search results with the master route” at the start point of the master route as illustrated in FIG. Is displayed, and the “merge point with the master route” is displayed at the merge point with the master route.

Similarly, when there is no link information in the map information of the navigation device 10 of the own vehicle 1, as illustrated in FIG. 17, the route from the start point of the master route to the junction point of the route searched for by the own device and the master route May be displayed by connecting the line segments.

According to the first embodiment, when a plurality of people go to the same destination with different vehicles 1, the same destination is set in each navigation device 10, and vehicle position information of the plurality of vehicles 1 is further displayed. In such a setting, the navigation device 10 of the destination vehicle / vehicle position confirmation requesting vehicle 1 searches for the navigation device version and map information version of the navigation device 10 of each group travel setting vehicle 1 and the route search to the destination. The result is received from the navigation device 10 of each group travel setting vehicle 1 and the route search result searched by the navigation device 10 of the newer navigation device version even if the latest map information version or the same map information version is the same as the master route. Sent to the navigation device 10 of each group travel setting vehicle 1 And the navigation device 10 in each group travel set vehicle 1 receives the master path as compared to the route search result in the own device, it is possible to clearly display a different portion of the path based on the comparison result.

As described above, the first embodiment of the present invention has been described. However, this is merely an example, and the present invention is not limited to this, and the knowledge of those skilled in the art can be obtained without departing from the scope of the claims. Various modifications based on this are possible. For example, in the first embodiment, the master route is determined by the navigation apparatus 10 of the destination vehicle / vehicle position confirmation requesting vehicle 1, but may be determined by the information center 180.

1 is a block diagram showing a configuration of a group navigation system according to Embodiment 1 of the present invention. The figure which shows an example of the input screen displayed on a display apparatus. The figure which shows an example of a group traveling vehicle list The flowchart which shows the process at the time of the group travel setting request of a navigation apparatus. The flowchart which shows the process at the time of group travel setting request reception of an information center. The flowchart which shows the process at the time of the group travel setting request of a navigation apparatus. The flowchart which shows the process at the time of the group driving | running | working availability confirmation request | requirement reception of an information center. The flowchart which shows the process at the time of the group travel availability confirmation request | requirement reception of a navigation apparatus. The flowchart which shows the process at the time of the group driving | running | working setting permission / rejection notification reception of an information center. The flowchart which shows the process at the time of the destination and vehicle position confirmation request | requirement transmission of a navigation apparatus. The flowchart which shows the process at the time of the destination and vehicle position confirmation request | requirement reception of an information center. The flowchart which shows the process at the time of the version request reception of a navigation apparatus. The flowchart which shows the process at the time of master path | route reception of an information center. The flowchart which shows the process at the time of the master path | route reception of a navigation apparatus. The figure which shows the example which superimposes and displays a master path | route on the path | route searched with the own apparatus, when there is link information in the map information of the navigation apparatus of the own vehicle. When there is no link information of the master route in the map information of the navigation device of the own vehicle, it is displayed at the start point of the master route that there is a difference between the route search result in the own device and the master route, and the search is performed by the own device The figure which shows the example which displays that it is a merge point at the merge point of a path | route and a master path | route. When there is no master route link information in the map information of the navigation device of the host vehicle, the route from the start point of the master route to the junction point of the route searched for by the host device and the master route is displayed by connecting the arrow segments. The figure which shows an example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vehicle 10 Navigation apparatus 100 Control circuit 110 Position detector 120 Operation switch group 130 Remote control sensor 130a Remote control terminal (remote control)
140 Map data input device 145 Display device 150 Voice input / output device 155 Data storage device 160 Interface unit 160a Mobile phone 170 TV receiver 175 VICS device 180 Information center 185 Group traveling vehicle list S101 Input screen display step S102 Group traveling vehicle list creation step S103 Group travel setting request transmission step S104 Group travel availability confirmation request transmission step S105 Group travel setting permission / rejection notification reception step S106 Permit / rejection determination step S107 Group travel setting permission flag OFF step S108 Group travel setting permission flag ON step S109 Vehicle position Non-display determination step S110 Vehicle position non-display flag ON etc. Step S111 All-group travel permission flag setting determination step S 12 predetermined time elapsed determination step S113 unset group travel setting flag OFF step S114 group travel setting request transmission step S201 group travel setting request reception step S202 group travel vehicle list storage step S203 group travel setting request transfer step S211 group travel availability confirmation request reception Step S212 Group travel availability confirmation transfer step S221 Group travel setting permission / rejection notification reception step S222 Group travel setting permission / rejection notification transfer step S231 Destination / vehicle position confirmation request reception step S232 Version request transmission step (version request transmission means)
S233 Map information version reception step (version reception means)
S234 Map information version transfer step (version transfer means)
S241 Master route receiving step (master route receiving means)
S242 Master route transfer step (master route transfer means)
S301 Group travel setting request reception step S302 Group travel vehicle list storage step S311 Group travel availability confirmation request reception step S312 Group travel vehicle list and group travel availability confirmation request display step S313 Group travel setting permission / rejection notification reply step S401 Destination / vehicle Position confirmation request sending step S402 Step for receiving map information version etc. (version receiving means)
S403 Master route determination step (master route determination means)
S404 Master route transmission step (master route transmission means)
S405 Route search result / master route comparison step (route comparison means)
S406 Difference path overlap display step (comparison result display means)
S501 Version request receiving step (version request receiving means)
S502 Map information version reply step (version reply means)
S511 Master route receiving step (master route receiving means)
S512 Route search result / master route comparison step (route comparison means)
S513 Difference path overlap display step (comparison result display means)

Claims (17)

When setting the same destination to the navigation device of multiple vehicles and performing group traveling, and further setting to display the vehicle position information of multiple vehicles,
The navigation device of the destination / vehicle position confirmation requesting vehicle receives the navigation device version, the map information version, and the route search result from the navigation device of each vehicle, and the latest map information version or the map information version is the same. The route search result searched with the navigation device of the newer navigation device version is transmitted as a master route to the navigation device of each vehicle,
A group traveling navigation method, wherein a navigation device of each vehicle receives the master route, compares the master route with a route search result of the own device, and displays different portions of the route based on the comparison result. When setting the same destination to the navigation device of multiple vehicles and performing group traveling, and further setting to display the vehicle position information of multiple vehicles,
The information center receives the navigation device version, map information version, and route search result of the navigation device of each vehicle, and searches with the navigation device of the newer navigation device version even if the latest map information version or map information version is the same. The route search result is sent to the navigation device of each vehicle as a master route,
A group travel navigation characterized in that the navigation device of each vehicle receives the master route, compares the route search result in the own device with the master route, and displays different portions of the route based on the comparison result. Method. The group traveling navigation method according to claim 1 or 2, wherein the navigation device of each vehicle displays the master route superimposed on the route searched by the own device when the map information of the own device includes the link information of the master route. . When the navigation device of each vehicle has no link information of the master route in the map information of its own device, it displays that there is a difference between the route search result in its own device and the master route at the start point of the master route, The group travel navigation method according to claim 1 or 2, wherein a merge point is displayed at a merge point between the route searched by the own device and the master route. When the navigation device of each vehicle does not have link information of the master route in its own map information, the route from the start point of the master route to the junction point of the route searched for by the own device and the master route is indicated by an arrow line segment. The group travel navigation method according to claim 1, wherein the group travel navigation methods are displayed in a connected manner. Version request receiving means for receiving a version request from an information center, version reply means for returning a navigation device version, a map information version and a route search result to the information center in response to the version request, forwarded from the information center Version receiving means for receiving the navigation device version, map information version and route search result of the navigation device of each vehicle, and the latest map information version or map information version based on the navigation device version, map information version and route search result. Master route determination means for determining, as a master route, a route search result searched with a navigation device of a newer navigation device version that is the same, and sends the master route to the information center. The route comparison unit compares the route search result with the master route reception unit that receives the master route from the information center, the route comparison unit that compares the route search result with the master route, and the route comparison unit. A navigation device having comparison result display means for displaying a comparison result;
Version request transmitting means for transmitting a version request to the navigation device of each vehicle when there is a destination / vehicle position confirmation request from the navigation device of any vehicle, and the navigation device version, map information version, and Version receiving means for receiving a route search result, version transfer means for transferring the navigation device version, map information version and route search result to the navigation device of any vehicle, and a master route from the navigation device of the arbitrary vehicle A group travel navigation system comprising a master route receiving means for receiving and an information center having master route transfer means for transferring the master route to a navigation device of each vehicle. A version request receiving means for receiving a version request from the information center; a version reply means for returning a navigation device version, a map information version and a route search result to the information center in response to the version request; and a master route from the information center. A navigation apparatus comprising: a master route receiving means for receiving; a route comparison means for comparing a route search result in the device with the master route; and a comparison result display means for displaying a comparison result compared by the route comparison means; ,
Version request transmitting means for transmitting a version request to the navigation device of each vehicle when there is a destination / vehicle position confirmation request from the navigation device of any vehicle, and the navigation device version, map information version, and A version receiving means for receiving a route search result, and a navigation device of a newer navigation device version even if the latest map information version or the map information version is the same based on the navigation device version, the map information version and the route search result. A master route determining means for determining a searched route search result as a master route, and an information center having master route transmitting means for transmitting the master route to a navigation device of each vehicle, Group travel navigation system that. The group travel navigation system according to claim 6 or 7, wherein the comparison result display means displays the master route superimposed on the route searched by the own device when the map information of the own device includes the link information of the master route. . When the comparison result display means displays that there is no link information of the master route in the map information of the own device, there is a difference between the route search result in the own device and the master route at the start point of the master route; The group travel navigation system according to claim 6 or 7, wherein a merge point is displayed at a merge point between the route searched by the own device and the master route. When the comparison result display means does not include the link information of the master route in the map information of the own device, the route from the start point of the master route to the joining point of the route searched for by the own device and the master route is indicated by an arrow line segment. The group travel navigation system according to claim 6 or 7, wherein the group travel navigation system is displayed in a connected manner. Version request receiving means for receiving a version request from the information center;
Version reply means for returning a navigation device version, a map information version and a route search result to the information center in response to the version request;
Version receiving means for receiving the navigation device version, map information version and route search result of the navigation device of each vehicle transferred from the information center;
Based on the navigation device version, the map information version, and the route search result, even if the latest map information version or the map information version is the same, the route search result searched with the navigation device of the newer navigation device version is determined as the master route. Master route determination means;
Master route transmitting means for transmitting the master route to the information center;
Master route receiving means for receiving the master route from the information center;
A route comparison means for comparing a route search result in its own device with the master route;
A navigation apparatus comprising comparison result display means for displaying a comparison result compared by the route comparison means. Version request receiving means for receiving a version request from the information center;
Version reply means for returning a navigation device version, a map information version and a route search result to the information center in response to the version request;
Master route receiving means for receiving a master route from the information center;
A route comparison means for comparing a route search result in its own device with the master route;
A navigation apparatus comprising comparison result display means for displaying a comparison result compared by the route comparison means. The navigation device according to claim 11 or 12, wherein the comparison result display means displays the master route superimposed on the route searched by the own device when there is link information of the master route in the map information of the own device. When the comparison result display means displays that there is no link information of the master route in the map information of the own device, there is a difference between the route search result in the own device and the master route at the start point of the master route; The navigation device according to claim 11 or 12, wherein the navigation device displays that it is a merging point at a merging point between the route searched by the own device and the master route. When the comparison result display means does not include the link information of the master route in the map information of the own device, the route from the start point of the master route to the joining point of the route searched for by the own device and the master route is indicated by an arrow line segment. The navigation device according to claim 11 or 12, wherein the navigation devices are displayed in a connected manner. Version request transmission means for transmitting a version request to the navigation device of each vehicle when there is a destination / vehicle position confirmation request from the navigation device of any vehicle;
Version receiving means for receiving a navigation device version, a map information version and a route search result from the navigation device of each vehicle;
Version transfer means for transferring the navigation device version, the map information version and the route search result to the navigation device of the arbitrary vehicle;
Master route receiving means for receiving a master route from the navigation device of any vehicle;
An information center comprising master route transfer means for transferring the master route to a navigation device of each vehicle. Version request transmission means for transmitting a version request to the navigation device of each vehicle when there is a destination / vehicle position confirmation request from the navigation device of any vehicle;
Version receiving means for receiving a navigation device version, a map information version and a route search result from the navigation device of each vehicle;
Based on the navigation device version, the map information version, and the route search result, even if the latest map information version or the map information version is the same, the route search result searched with the navigation device of the newer navigation device version is determined as the master route. Master route determination means;
An information center, comprising: master route transmission means for transmitting the master route to a navigation device of each vehicle.

Images