JP2002054934A - Road map information updating system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the technics for collecting the new road information to exercise the optimum route guide function while minimizing the disagreement between the actual road circumstance and the road map data. SOLUTION: In a navigation device 1, a traveling locus forming part 17 forms a traveling locus of an automobile on the basis of the position data from a position detecting part 2, and the information for updating the road map including the traveling locus is transmitted to an information center 21. The information center 21 updates the road map information on the basis of the transmitted information for updating the road map, and distributes the updated road map information to the navigation device 1. In a case of collecting the data by the air photography or the site investigation of the actual road circumstance, it is difficult to update the road map information whenever necessary for the sake of time and cost, but in a case of this system, the road map information can be updated by utilizing, for example, the traveling locus of a vehicle in ordinary use without not specially aiming to update the road map information.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for acquiring road map data from an external information distribution source and updating and storing the latest road map data in an in-vehicle navigation device.

[0002]

2. Description of the Related Art Conventionally, in the case of a car navigation system, for example, a current position is detected by a GPS or the like as a vehicle travels, and the current position is displayed together with a road map on a display to provide guidance (position guidance). There is known a function of setting an appropriate route (destination route) from a current location to a destination and performing predetermined guidance (route guidance) so that the vehicle can travel according to the destination route. These guidance functions are realized using road map data stored therein. Generally, this road map data is C
It is recorded in advance on a recording medium such as a D-ROM or a DVD-ROM, and this recording medium is set in a data input device and used.

[0003] However, the road map data recorded on the recording medium in this manner reflects the situation at the time of recording, and for example, after that, a new road is opened or a facility is newly established. In such a case, map data having contents corresponding to those is required. At that time, every time the map data of a part of the area is corrected, it is not efficient to use the data newly stored in the recording medium in the unit of the whole map data, and the economy becomes worse.

[0004] Therefore, it has been considered to constitute a communication type car navigation device that can be connected to an external information distribution source. In the case of this communication type car navigation device, for example, it is connected to an information communication network such as the Internet via a wireless line such as a mobile phone or a car phone,
Data requested to be delivered to the information delivery source can be acquired (downloaded). For this reason, only the necessary road map data is distributed from the information distribution source providing the road map data distribution service, so that the road map data used by the own device can be updated.

[0005]

However, even when the road map data is distributed from the information distribution source, the road map data in the information distribution source does not reflect the latest road condition. Not exclusively. That is, collecting the latest road information requires cost and time, and the current situation is that the road map data is updated as frequently as once a year, for example. This means that when creating road map data, it is necessary to collect data by taking aerial photographs of the actual road conditions and conducting field surveys, and to process and edit that data into digital data, for example, for the whole country. This is because updating at any time is difficult in terms of time and cost.

If the road map data used by the navigation device and the actual road conditions are displaced as described above, a detour is provided even if the route guidance function is used, or a newly developed road is provided. It is possible to provide optimal route guidance and the like. Therefore, an object of the present invention is to propose a new road information collecting technology so that an appropriate route guidance function can be exhibited while minimizing a deviation between an actual road condition and road map data used by a navigation device. And

[0007]

According to a first aspect of the present invention, there is provided a road map information updating system for updating a road map collected based on a trajectory of a vehicle. The information is transmitted from the information collection device to the information center, and the information center can update the road map information based on the transmitted road map update information. Then, the updated road map information can be distributed to the vehicle-mounted navigation device. As described above, when data is collected by taking an aerial photograph of an actual road condition or conducting a site survey, it is difficult to update road map information as needed in terms of time and cost. On the other hand, in the case of the present system, the road map information can be updated using, for example, the traveling trajectory of the vehicle in normal use, even if it is not specifically intended to update the road map information. Updates are possible. In other words, when a new road is created, if the vehicle equipped with this information collection device travels on that road, a travel locus about the new road is obtained, and the updated road map information based on the new track is used for in-vehicle use. This is because the navigation device can be used. Assuming that all the vehicles are equipped with this information collecting device, even if only the first vehicle travels on a new road, the vehicle traveling on the new road thereafter has an in-vehicle navigation device. For example, it is theoretically possible to use road map information updated for a new road.

By employing such a road map information updating system, it is possible to minimize the deviation between the actual road conditions and the road map data used by the navigation device. Therefore, an appropriate function can be exhibited when the route guidance function is executed by the navigation device.

What is necessary for updating the road map information is information on a new road. Therefore, if the information for updating the road map is collected only in the case of the road leaving state as described in claim 2, at least the information collection device can collect new information as the information for updating the road map. It is assumed that the information collection device stores only information older than the road map information stored in the information center. Even in such a case, the information collection device updates the road map with new information. If the information can be collected, the information required on the information center side can be obtained. By doing so, it is possible to minimize the collection of unnecessary information in the information collection device or the information center, and the exchange of unnecessary information between the information collection device and the information center.

[0010] Further, there is a possibility that a traveling locus that does not match the shape and position of the actual new road may be detected due to problems such as accuracy in detecting the traveling locus. Then, you may make it show in Claim 3. In other words, when a new travel locus not previously stored is detected, the travel locus itself is stored, and when the new travel locus is the same as the previously stored travel locus, the number of times of storage is stored. Keep it. Then, the road map update information is transmitted to the information center only when the storage count reaches a predetermined value. This is because when the same traveling locus is detected a plurality of times, it is highly likely that the locus matches the shape and position of the actual new road.

In the case of the third aspect, measures have been taken by the information collecting apparatus. However, the measures may be executed on the information center side as described in the fourth aspect. That is, it is used for updating the road map only when the number of times of storage reaches the predetermined value.
Since information can be obtained from a plurality of information sources, more accurate data can be obtained. In addition, a road that is running for the first time does not always run multiple times. Therefore, it is possible to update the road map by using information from a plurality of information sources (that is, by making a decision on the information center side).

In the case of claim 3 or 4, the user is automatically determined to have a high possibility of being a traveling locus on a new road without any special involvement. As shown, a form in which the user is involved is also conceivable. That is, for example, there may be a signboard or the like, and it may be possible for the user to clearly determine that the road is new. Therefore, when the user specifies the start point and the end point with respect to the travel locus, the road map update information may be collected for the travel locus of the designated portion. In this case, there is an advantage that the data of the new road can be reliably collected without depending on the number of times of storage.

As the road map information, not only the location of the road but also various attributes related to the road are often set. For example, it is information such as width, road type (general road, motorway, etc.) or one-way traffic. Therefore, it is conceivable to update the road map information by grasping such information at the information center.

For example, in the case of claim 6, the traveling direction of the vehicle is determined based on the traveling locus, and if only the road map updating information indicating the traveling locus in the same direction is received a predetermined number of times or more, the traveling direction is determined. It is estimated that the new road obtained from the trajectory is one-way. In consideration of an error when the traveling locus is detected by a plurality of information collecting devices, the above process may be performed on a traveling locus that is considered to be substantially at the same position. Although the same determination and estimation can be performed on the information collection device side, since the determination and estimation cannot be performed without traveling the new road a plurality of times, the update timing of the road map information may be delayed. high.
On the other hand, since the information center can aggregate information from a plurality of information collection devices, the possibility of delay in update timing is reduced, which is advantageous.

In the case of claim 7, when the information collecting device stores the travel locus, the detection time or the detection time interval of the point data constituting the travel locus is also stored.
Then, the information center calculates the traveling speed of the vehicle based on the detection time or the detection time interval of the point data,
The road width is estimated from the traveling speed.

The information collecting device for collecting the traveling locus and the on-vehicle navigation device for receiving the distribution of the road map information need not necessarily be mounted on the same vehicle. It would be convenient. In addition, since both devices perform processing using the road map information, the road map information can be shared. In addition, the information collecting device detects the current position of the vehicle when detecting the traveling locus, but the current position detecting means is also used in the in-vehicle navigation device, so that both can be shared. There are very many.

[0017] If vehicles equipped with these two devices are mounted on each other, they can mutually use the updated road map information based on the result of the travel of the own vehicle via the information center. Therefore, the road map information referred to by the devices mounted on each vehicle is appropriately updated, and the information collection device is less likely to collect unnecessary traveling trajectories as road map update information. . In other words, if the road map information updated as a result of another vehicle traveling on a new road is distributed to the navigation device of the own vehicle, the information mounted on the own vehicle when the own vehicle travels on the new road This is because the collecting device is no longer determined to be in the road leaving state.

[0018]

Embodiments of the present invention will be described below with reference to the drawings. It is needless to say that the embodiments of the present invention are not limited to the following examples, and can take various forms as long as they belong to the technical scope of the present invention.

FIG. 1 is a functional block diagram schematically showing the configuration of a road map information updating system as an embodiment.
The present system includes a navigation device 1 corresponding to an “information collection device” and an “in-vehicle navigation device” in the claims, and an information center 21 corresponding to an “information center” in the claims. Although the navigation device 1 is provided in a plurality of vehicles, FIG. 1 illustrates one of them.
The information center 21 is provided as a facility fixed at a predetermined position on the ground.

As shown in FIG. 1, the navigation device 1
Has a position detection unit 2, a map data storage unit 3, a switch information input unit 4, a memory unit 5, a display unit 6, an audio output unit 7, a data communication unit 8, and a control unit 9. Hereinafter, these configurations will be described in order. The position detection unit 2 is configured by a GPS sensor, a gyro sensor, a vehicle speed sensor, and the like, and is a part that detects the current position of the vehicle. Note that if the current position of the vehicle can be detected, it is not necessary to provide all of the above sensors, and it is sufficient that at least one of the sensors is provided. However, in the case where a GPS sensor is provided, the position of the vehicle can be accurately detected.
It is assumed that the position detection unit 2 includes at least a GPS sensor.

The map data storage unit 3 stores, for example, a DV
It is composed of a D player, a hard disk, a CD player, etc., and stores map data including road map information.
In the road map data stored in the map data storage unit 3, a predetermined road number is stored in association with each road. Depending on the road, a predetermined road number is stored for each section of the road. They are stored in association with each other.

The switch information input unit 4 includes switches mounted on the left and right and up and down of a display device serving as the display unit 6, and a driver operates the switch information input unit 4.
, Various selections and various operation instructions can be made. The memory unit 5 includes, for example, a ROM or an R
The ROM stores programs for executing various processes described below, including a navigation program. In the RAM of the memory unit 5, an area for temporarily storing a work memory of a program, map data acquired from the map data storage unit 3, and the like is formed.

The display unit 6 is configured as a display device for displaying a map for navigating the driver and displaying a destination selection screen and the like. Further, the audio output unit 7 utters a voice for navigating the driver and an explanation of a screen operation. The data communication unit 8 has a mutual communication function, and is configured by, for example, a mobile phone, a car phone, or the like.

The control unit 9 controls the above-mentioned units of the navigation device 1, and includes a map data acquisition unit 10, a map matching unit 11, a route calculation unit 12, a route guidance unit 13,
It includes a drawing unit 14, a screen control management unit 15, a communication control unit 16, and a traveling trajectory creation unit 17. The operation of each of these units will be described.

First, the map data acquisition unit 10 stores map data required by each of the above units of the control unit 9 as described later.
Obtained from the map data storage unit 3 and provided to each unit. The processing in the map data acquisition unit 10 and the processing in other units are executed using the ROM and the RAM of the memory unit 5.

Further, the map matching section 11 stores the current position of the vehicle detected by the position detection section 2 and the map data storage section 3.
Using the road shape data or the like of the map data obtained from the, the road on which the current position is located is specified. At this time, the map data acquisition unit 10 acquires necessary map data from the map data storage unit 3.

The route calculation unit 12 uses the switch information input unit 4 to display a desired map from the current position calculated by the map matching unit 11 or the departure point specified by the driver. Calculate the route to the ground. The route guidance unit 13 calculates the points required for guidance based on the result of the route calculation and the road shape data stored in the map data, the position information of the intersection, the position information of the railroad crossing, and the like. It is calculated whether guidance (instruction of turning right or turning left, that is, so-called navigation) is necessary.

The drawing unit 14 draws a map of the current position, a schematic diagram of an expressway, an enlarged view near an intersection near an intersection, etc. in accordance with an instruction of the screen control management unit 15 and displays the drawing on the display unit 6. In the traveling locus creating unit 17, the position detecting unit 2
The travel locus of the own vehicle is created based on the position data from. Then, as described later, when the predetermined condition is satisfied, the road map update information including the travel locus is stored in the memory unit 5.
To accumulate.

On the other hand, the communication control unit 16 instructs the data communication unit 8 using the switch information input unit 4 when instructed by the driver and every time a predetermined time elapses, and performs mutual communication with the information center 21. To a state where it is possible. Also, when the data communication unit 8 receives a request from the information center 21, the communication control unit 16 sets the above-described mutual communication to be possible. When the mutual communication becomes possible as described above, the information for updating the road map stored in the memory unit 5 is transmitted to the information center 21.
Upload to. In addition, it is possible to request information distribution to the information center 21, receive information distributed from the information center 12 in response to the request, and store it in the memory unit 5. Information distributed from the information center 21 includes an application program and map data.

The information center 21 is connected to a radio base station 18 capable of communicating with each vehicle via a telephone station 19, and data is transmitted and received between the radio base station 18 and the navigation device 1. The information center 21 is located at the telephone office 1
The communication terminal 9 is provided with a line terminal device 22 for performing communication via the server 9, a server 23 for processing necessary information, and a database 24 for storing necessary data. The information center 21 processes the information for updating the road map obtained from the navigation device 1 by communication by the server 23, and
To accumulate. Then, when there is an information distribution request from the navigation device 1, the server 23 searches the database 24 for necessary information, and transmits, for example, the above-described application program and map data using the line terminal device 22.

Next, the processing relating to the updating of the road map executed in the navigation device 1 and the information center 21 configured as described above will be specifically described with reference to a flowchart. Here, two modes are shown. [First Mode] FIG. 2 is a flowchart showing a process executed by the control unit 9 of the navigation device 1 in the first mode, in which a running locus is accumulated and transmitted to the information center 21 in a predetermined case. is there.

The traveling locus creating section 17 takes in the current position coordinates (longitude and latitude values) detected by the position detecting section 2 at regular intervals (for example, 1 to 5 seconds) to create traveling locus information ( S101). The traveling direction is known from the traveling locus. In addition, since the travel distance and the time required for the travel can be obtained, the average traveling speed can be determined.

Next, the travel locus thus obtained is compared with the road shape data of the map data obtained from the map data storage unit 3 to determine whether or not the vehicle is in a road leaving state (S10).
2). If the vehicle is in a road leaving state (S10
2: YES), it is compared with the stored road map update information to determine whether or not there is a similar travel locus (S103). If there is no similar traveling locus (S103: NO), the number of creations is set to 1 (S1).
04), the road map update information including the travel locus is stored in the memory unit 5 (S105), and the process ends. In other words, it is assumed that the road is a new road that does not exist in the map data, and its traveling locus is stored. The road map update information is information including a travel locus, a storage time interval of position coordinates constituting the travel locus, the number of times the travel locus is created, and the like.

When determining whether or not the vehicle is in the road leaving state in S102, the degree of matching (degree of approximation) with the travel locus is within a predetermined range in which map matching is possible by using the map matching processing in the map matching unit 11. If there is no road shape data, it may be determined that the vehicle is in a road leaving state. Further, for example, it is preferable that a detour provided temporarily during road construction is not included in the new road here. Such a detour has a short road distance, is provided in parallel with the road before construction, and has a short distance from the road before construction. The traveling locus of such a detour is based on its characteristics and is not adopted as the traveling locus of a new road to be accumulated.

On the other hand, if a similar traveling locus exists (S103: YES), it is determined whether or not the number of times the traveling locus has been created is greater than or equal to a predetermined value (S106). If it is (S106: NO), the number of times of creation for the traveling locus is increased by 1 (S107), and this processing ends.

When a similar traveling locus is created in this way and the number of times the traveling locus is created increases, and the number of times the traveling locus is created exceeds a predetermined value (S106:
YES), the road map update information stored in S105 is transmitted to the information center 21 (S108). Thereafter, the transmitted road map update information is cleared from the memory unit 5 (S109), and the process ends.

The reason why the information for updating the road map is transmitted to the information center 21 only when the number of times of generation of the traveling locus exceeds a predetermined value is as follows. That is,
Due to problems such as accuracy in detecting the traveling locus, there is a possibility that a traveling locus that does not match the shape and position of the actual new road may be detected. On the other hand, when the same traveling locus is detected a plurality of times, it can be said that there is a high possibility that the locus matches the shape and position of the actual new road.

Next, the processing executed by the information center 21 which has received the above-described road map update information from the navigation device 1 will be described with reference to the flowchart of FIG. This process is executed each time the road map update information is received from the navigation device 1.

First, an average vehicle speed is calculated from the received road map updating information, and a road width is estimated from the average vehicle speed (S201). The average vehicle speed is calculated from the travel locus included in the road map update information and the time interval for capturing the current position coordinates that constitute the locus. In other words, the travel distance of the vehicle and the time required for the travel can be obtained from these, so that the average vehicle speed can be obtained by dividing the travel distance by the required time. Further, when estimating the road width from the average vehicle speed, for example, when there is information indicating a traveling speed of 80 km / h or more (or when there is a large amount), it is conceivable that the road width is the same as that of the motorway. . In subsequent S202, the traveling direction is acquired from the road map update information.

Then, in S203, it is compared with the road map updating information already stored to determine whether or not there is a similar traveling locus (S103). If there is no similar traveling locus (S203: N
O), the data is stored in the database 24 as locus data that can be provided, and the existing map data stored in the database 24 is updated (S206).

On the other hand, if there is a similar traveling locus (S203: YES), it is compared with the already stored locus data of the same shape to determine whether or not the traveling direction is different (S204). If the traveling directions are different (S204: YES), the information of the traveling direction is updated (S205). In this case, in subsequent S206, since the locus data itself is stored and the map data is updated based on the locus data, only the travelable direction as the road information is updated.

If the traveling direction is the same as the previously stored trajectory data of the same shape (S204: NO), this processing is terminated. In addition, as described above, the database 2
The track data (new road map information) and the updated map data stored in 4 are distributed in response to a distribution request from the navigation device 1. At this time, in the navigation device 1, there are cases where only new road map information is required, and cases where the entire updated map data is required. Therefore, in S206, the new trajectory data itself is stored, and the map data is updated.

Also, in the flowchart of FIG.
When the traveling direction is the same as the already stored locus data of the same shape (S204: NO), no processing is performed. For example, when only the locus data of the same traveling direction is received a predetermined number of times or more, Alternatively, it may be determined that the new road corresponding to the trajectory data is one-way.

[Second Aspect] In the first aspect, the navigation device 1 creates a similar traveling locus a predetermined number of times before uploading it to the information center 21. This is because, as described above, there is a possibility that a traveling locus that does not match the shape and position of the actual new road may be detected due to problems such as accuracy in detecting the traveling locus, but a plurality of times may be detected. This is because if the same traveling locus is detected, the locus is highly likely to match the shape and position of the actual new road. However, whether the data is finally adopted as the data to be provided to the navigation device 1 is determined by the information center 21 side. Therefore, in the second aspect, the processing is performed by the information center 21.

FIG. 4 is a flowchart showing the processing executed by the control unit 9 of the navigation device 1 in the case of the second mode. The travel locus information is created (S201), and the travel locus thus obtained is compared with the road shape data of the map data acquired from the map data storage unit 3 to determine whether or not the vehicle is in a road leaving state (S201). S202). If the vehicle is in the road leaving state (S202: YES), it is compared with the stored road map update information to determine whether or not there is a similar traveling locus (S203). If there is no similar traveling locus (S203: N
O), the road map updating information including the traveling locus is transmitted to the information center 21 (S204). Thereafter, the transmitted road map update information is stored in the memory unit 5 (S20).
5), end this processing. On the other hand, when the vehicle is not in the road departure state (S202: NO) or when there is a traveling locus that has already been transmitted (S203: YES), the present process is terminated as it is. That is, when a new travel locus is obtained (S230: NO), the information center 21 is unconditionally unconditionally set.
The information for updating the road map is transmitted to.

Next, a process executed by the information center 21 which has received the above-described road map update information from the navigation device 1 will be described with reference to a flowchart of FIG. The processes from S221 to S223 are the same as S201 to S203 in the case of the first embodiment shown in FIG.

If a negative determination is made in S213, that is, if there is no similar traveling locus as compared with the stored road map updating information (S213:
NO), the number of receptions is set to 1, and the received road map update information is stored in the database 24 (S215). At this stage, the data cannot be provided to the navigation device 1 yet.

On the other hand, if a similar traveling locus exists (S213: YES), it is compared with the already stored locus data of the same shape to determine whether or not the traveling direction is different (S216). If the traveling directions are the same (S216: NO), the process proceeds to S217 without performing the process of S217.
The process moves to the process at 218. On the other hand, when the traveling directions are different (S216: YES), the information on the traveling directions is updated (S217). Thereafter, it is determined whether or not the same trajectory data has been received a predetermined number of times or more (S218). If the same trajectory data is less than the predetermined value (S218: NO), the number of receptions for the travel trajectory is increased by 1 (S219), and this processing is terminated. I do.

When a similar traveling locus is received in this way and the number of receptions increases, if the number of receptions of the traveling locus exceeds a predetermined value (S218:
YES), the road map update information stored in S215 is stored in the database 24 as locus data that can be provided.
And the map data is updated based on the locus data (S220).

In this case, too, of course, the locus data (new road map information) stored in the database 24.
The updated map data is distributed in response to a distribution request from the navigation device 1. Note that, in the present embodiment, the traveling locus creating unit 17 in the position detecting unit 2 and the control unit 9 corresponds to a traveling locus detecting unit.

As described above, according to the road map information updating system of this embodiment, the navigation device 1 transmits the road map updating information including the trajectory of the vehicle to the information center 21, and the information center 21 transmits the information. The road map information can be updated based on the updated road map information, and the updated road map information can be delivered to the navigation device 1. In the case of collecting data by taking actual aerial photographs or conducting field surveys on actual road conditions, it is difficult to update road map information as needed, both in terms of time and cost. In the case of, the update of the road map information can be performed by using, for example, the traveling locus of the vehicle in normal use, without the purpose of updating the road map information only. By adopting this system, the deviation between the actual road condition and the road map data used by the navigation device 1 can be minimized, and the navigation device 1
In executing the route guidance function, an appropriate function will be exhibited.

[Others] (1) In the above-described embodiment, the user (for example, the driver) automatically determines a locus that is likely to be a traveling locus on a new road without any special involvement. However, a form in which the user is involved is also conceivable. For example, there are information signs,
If the user can clearly judge that the road is a new road, the user specifies a start point and an end point with respect to the traveling locus, and the road map updating information on the traveling locus of the designated portion is provided. Should be collected. If the start point and end point are specified,
What is necessary is just to specify the position coordinates closest to the designated point in the stored traveling locus, and to transmit them to the information center 21 as the traveling locus. The designation of the start point and the end point may be performed after traveling on a new road.

In this case, in the first mode, the determination of “whether or not the number of generations is equal to or more than a predetermined number” performed on the navigation device 1 side (see S106 in FIG. 3), and in the second mode For example, the determination of whether or not the number of receptions is equal to or more than a predetermined number (see S218 in FIG. 5) performed by the information center 21 becomes unnecessary. Nevertheless, there is the merit that only new road data can be reliably collected.

(2) In the above embodiment, the navigation apparatus 1 collects the trajectory data of the new road and the information center 2
1 and a subject that receives the distribution of the map information from the information center 21. However, they may be mounted on separate vehicles.

[Brief description of the drawings]

FIG. 1 is a functional block diagram schematically showing a configuration of a road map information updating system to which the present invention is applied.

FIG. 2 is a flowchart showing a process executed by the navigation device in the case of the first embodiment.

FIG. 3 is a flowchart showing a process executed in the information center in the case of the first mode.

FIG. 4 is a flowchart showing a process executed by the navigation device in the case of the second mode.

FIG. 5 is a flowchart showing a process executed in the information center in the case of the second mode.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 navigation device 2 position detection unit 3 map data storage unit 4 switch information input unit 5 memory unit
6 display unit 7 audio output unit 8 data communication unit 9
Control unit, 10: Map data acquisition unit, 11: Map matching unit, 12: Route calculation unit, 13: Route guidance unit, 14 ...
Drawing unit, 15: screen control management unit, 16: communication control unit, 1
7: travel locus creation unit, 18: radio base station, 19: telephone office, 21 ... information center, 22 ... line terminal device, 23 ... server, 24 ... database

Claims (8)

[Claims] An information processing apparatus according to claim 1, further comprising a traveling locus detecting means mounted on a vehicle traveling on a road, for detecting a traveling locus of the vehicle, and at least based on the traveling locus detected by the traveling locus detecting means. Collect,
An information collection device that transmits the road map update information to the outside, and stores the road map information, and the road map information can be distributed to the vehicle-mounted navigation device.
An information center for updating the road map information based on the road map update information transmitted from the information collection device. 2. The road map information updating system according to claim 1, wherein the information collecting device stores road map information, and when the traveling locus is detected by the traveling locus detecting means, the detected traveling locus. Is determined to be in a road leaving state that does not correspond to any of the roads specified by the stored road map information, and only in the case of the road leaving state, collection of the road map update information is performed. A road map information updating system characterized by performing. 3. The road map information updating system according to claim 1, wherein the information collecting device detects a traveling locus by the traveling locus detecting means.
If the traveling locus is a new traveling locus not previously stored, the traveling locus itself is stored. On the other hand, if the traveling locus is the same as the previously stored traveling locus, the number of times of storage is stored. And transmitting the road map update information to the information center only when the number of times of storage reaches a predetermined value. 4. The road map information updating system according to claim 1, wherein the information center does not previously store the travel locus in the road map update information transmitted from the information collection device. If the travel locus is a new travel locus, the travel locus itself is stored. On the other hand, if the travel locus is the same as a previously stored travel locus, the number of times of storage is stored. A road map information updating system, which is used for updating the road map for the first time when the number of times has reached. 5. The road map information updating system according to claim 1, wherein the information collecting device is configured to, when the user determines that the traveling locus detected by the traveling locus detecting means is a new road, determine that the user is a new road. A designation unit for designating a start point and an end point is provided, and the road map update information is collected for a traveling locus of a portion where the start point and the end point are designated by the designation unit. Road map information update system. 6. The road map information updating system according to claim 1, wherein the information center is configured to control the vehicle based on a traveling locus in the road map updating information transmitted from the information collecting device. The traveling direction is determined, and for a traveling locus that is considered to be substantially at the same position, if only the road map update information indicating the traveling locus in the same direction is received a predetermined number of times or more, the traveling locus is obtained from the traveling locus. A road map information updating system, which estimates that a new road to be used is one-way, and updates the road map information using the estimation result. 7. The road map information updating system according to claim 1, wherein the information collection device, when storing the travel trajectory, detects a detection time or a detection time of point data constituting the travel trajectory. The interval is also stored, which is also included in the road map update information. On the other hand, the information center detects the time or the detection time of the point data in the road map update information transmitted from the information collection device. A road map information updating system, which calculates a traveling speed of the vehicle based on an interval, estimates a road width from the traveling speed, and updates the road map information using the estimation result. 8. The road map information updating system according to claim 1, wherein said information collecting device is mounted on a vehicle on which said on-vehicle navigation device is mounted. Information update system.