CN101210825A - Map information generating systems - Google Patents

Map information generating systems Download PDF

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Publication number
CN101210825A
CN101210825A CNA2007101995623A CN200710199562A CN101210825A CN 101210825 A CN101210825 A CN 101210825A CN A2007101995623 A CNA2007101995623 A CN A2007101995623A CN 200710199562 A CN200710199562 A CN 200710199562A CN 101210825 A CN101210825 A CN 101210825A
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China
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information
driving trace
road
place
unit
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CNA2007101995623A
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CN101210825B (en
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中村德裕
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Aisin AW Co Ltd
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Aisin AW Co Ltd
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Priority claimed from JP2006352922A external-priority patent/JP4797978B2/en
Priority claimed from JP2006352951A external-priority patent/JP5029009B2/en
Priority claimed from JP2006352908A external-priority patent/JP5223192B2/en
Application filed by Aisin AW Co Ltd filed Critical Aisin AW Co Ltd
Publication of CN101210825A publication Critical patent/CN101210825A/en
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Publication of CN101210825B publication Critical patent/CN101210825B/en
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Abstract

The invention provides a cartographic information generating system which is used for generating information about the new added roads to the cartographic information stored in a navigation device and etc.. The traveling locus information generated when vehicles (3) serving as probe cars travel along paths that are not included in navigation map data (53) provided in the navigation device (4) is transmitted to a map distribution center (2) as probe data. After receiving the traveling locus information from the navigation device (4) of each vehicle (3), the map distribution center (2) gathers together the received data, groups together traveling locus information relating to the same path, and then generates new road information relating to a single new road in each group.

Description

Map information generating systems
Technical field
The present invention relates to newly establish the relevant map information generating systems of newly establishing road information of road to what generation was stored in that cartographic information in the guider appends.
Background technology
In recent years, much carry out the guiding of travelling of vehicle, the guider that makes the driver can arrive the destination easily is installed on the vehicle.At this, guider is meant this device: by the present position of detection vehicles such as GPS receiver, and pass through recording mediums such as DVD-ROM or HDD, or obtain and the corresponding map datum in present position by the internet, and it is presented on the LCD.From recording medium, read the map datum that comprises the vehicle present position, data are presented at the map picture around the present position of vehicle on the display device according to the map, simultaneously by vehicle location is identified (mark) and the overlapping demonstration of map picture, according to moving and the rolling map picture of vehicle, perhaps by fixing map picture and the moving vehicle station location marker, it is very clear in which place to make vehicle travel now.
Japan all builds new road (newly establishing road) national every year.And, situations such as existing road disappears or the shape of existing road changes can take place thereupon.Can exist such problem this moment: the relevant information of road of newly establishing of having built after having generated the map datum that guider had is not registered in the cartographic information data.Promptly, in having the guider that does not comprise the map datum of newly establishing road, owing to can not be shown to LCD with newly establishing road, and newly establish the object that road can not become route search, cause guider not retrieve the path of navigation of going the long way round by newly establishing road.For fear of such inconvenience, the renewal that need carry out the map datum that is stored in the guider with the time interval to a certain degree.Here, the renewal of map datum can be replaced old DVD and realize by buying new DVD, perhaps the renewal that sends of the information dispatching centre content of rewriting HDD with map datum according to the map.
And, be used for the relevant generation method of newly establishing road information of road of newly establishing that the map datum to guider appends as generation, generally being that the people is actual removes newly to establish road and carries out field investigation, and generates according to enquiry data.But the annual number of building of newly establishing road is many, if by the whole necessary items of manpower survey then need a lot of times.As a result, newly establishing in the map datum that road is reflected to guider needs the suitable time, causes the reliability decrease of guider.So, just attempt utilizing the resume generation of vehicle ' newly to establish road information before.For example, in TOHKEMY 2004-251790 communique, put down in writing such system: when judging vehicle and continuing to travel on the road in the map datum that is not present in guider, road information is newly established in the automatic generation of driving trace data according to vehicle, thus updating map data.
Patent documentation 1:JP spy open 2004-251790 (the 8th page～the 9th page, Fig. 4)
At this, in the map information updating system of described patent documentation 1 record, carry out map match, if when judging vehicle and continuing to travel on the road in the map datum that is not present in guider, generate according to driving trace without exception and newly establish road information.Therefore, might generate a plurality of to identical newly establish road newly establish road information.That is, even repeatedly travel under the situation of same road, on the road in a plurality of tracks that travels the time, the duplicate possibility of driving trace is very little, in addition, and because of detecting the deviation that error also can cause driving trace.Therefore, travel to generate when newly establishing road at every turn and newly establish road information, cause a road is appended a plurality of road informations of newly establishing.
Summary of the invention
The present invention is for solving the invention of problems of the prior art, purpose is, a kind of map information generating systems is provided, and this map information generating systems is newly established under the situation of road information generating according to track of vehicle, prevents from same road is generated a plurality of road informations of newly establishing.
(1) in order to reach described purpose, map information generating systems of the present invention comprises information collection unit and newly establishes the road information generation unit, this information collection unit collect with the road that in the road network of cartographic information, does not comprise that travels on the relevant driving trace information of driving trace of vehicle, this newly establishes the road information generation unit driving trace information collected according to described information collection unit, generate with newly establish road relevant newly establish road information, this map information generating systems is characterised in that, comprise the information block unit, this information block unit divides into groups to the driving trace information of travelling on same road in the collected driving trace information of described information collection unit respectively, the described road information generation unit of newly establishing is according to by the driving trace information of described information block unit packet, to each group generate one with newly establish road relevant newly establish road information.
(2) as described (1) described map information generating systems, it is characterized in that, comprise the begin chain determining unit and finish the chain determining unit, this begin chain determining unit is used for determining that driving trace begins the road chain in place, this driving trace begins the place and is meant, place during road driving that vehicle included existing road chain from described cartographic information begins not comprise in the road network of described cartographic information, this end chain determining unit is used for determining that driving trace finishes the road chain in place, this driving trace finishes the place and is meant, place when the road that vehicle does not comprise from the road network of described cartographic information turns back to existing road chain included in the described cartographic information, described information block unit begin the place to described driving trace road chain divides into groups with the identical relevant driving trace information of driving trace of road chain that described driving trace finishes the place.
(3) as described (1) or (2) described map information generating systems, it is characterized in that, comprise metrics calculation unit, this metrics calculation unit is to the driving trace of the collected a plurality of driving trace information of described information collection unit, calculate the standoff distance between each driving trace, described information block unit pair divides into groups with the relevant driving trace information of interior driving trace at predetermined distance with the standoff distance that described metrics calculation unit calculates.
(4) as described any described map information generating systems in (1)～(3), it is characterized in that, described metrics calculation unit is to the driving trace of a plurality of driving trace information, calculate the standoff distance between the position coordinates of predetermined distance mean value and as the standoff distance between the driving trace.
(5) as described (1) described map information generating systems, map information generating systems according to claim 1, it is characterized in that, comprise the information rejected unit, this information rejected unit is got rid of to be speculated as in the collected driving trace information of described information collection unit and is not had vehicle ' in the driving trace information of newly establishing on the road, described information block unit divides into groups to following driving trace information, this driving trace information is meant, the driving trace information except the driving trace information that described information rejected unit is got rid of.
(6) as described (5) described map information generating systems, it is characterized in that, comprise the begin chain determining unit and finish the chain determining unit, this begin chain determining unit is used for determining that driving trace begins the road chain in place, this driving trace begins the place and is meant, place during road driving that vehicle included existing road chain from described cartographic information begins not comprise in the road network of described cartographic information, this end chain determining unit is used for determining that driving trace finishes the road chain in place, this driving trace finishes the place and is meant, place when the road that vehicle does not comprise from the road network of described cartographic information turns back to existing road chain included in the described cartographic information, described information rejected unit are got rid of described driving trace and are begun the road chain in place and the identical driving trace information of road chain in described driving trace end place.
(7) as described (5) or (6) described map information generating systems, it is characterized in that, comprise that engine stops detecting unit, this engine stops detecting unit and is used to detect vehicle motor and stops, described information rejected unit get rid of described engine stop detecting unit detected travel in the driving trace information that stops of engine.
(8) as described any described map information generating systems in (5)～(7), it is characterized in that, comprise and retreat detecting unit, this retreats detecting unit and is used to detect vehicle rollback, described information rejected unit get rid of described retreat detecting unit detected travel in the driving trace information that retreats.
(9) as described any described map information generating systems in (5)～(8), it is characterized in that, comprise beginning place detecting unit and finish the place detecting unit, this begins the place detecting unit and is used to detect driving trace and begins the place, this driving trace begins the place and is meant, place during road driving that vehicle included existing road chain from described cartographic information begins not comprise in the road network of described cartographic information, this end place detecting unit is used to detect driving trace and finishes the place, this driving trace finishes the place and is meant, place when the road that vehicle does not comprise from the road network of described cartographic information turns back to existing road chain included in the described cartographic information, described information rejected unit get rid of described driving trace begin place and described driving trace finish between the place distance at predetermined distance with interior driving trace information.
(1) described map information generating systems with described structure, the travel relevant driving trace information of driving trace of the vehicle on the road that in the road network of cartographic information, does not comprise of collection, simultaneously the driving trace information of travelling on same road in the driving trace information of collecting is divided into groups, driving trace information according to grouping, to each group generate one newly establish road relevant newly establish road information, thereby newly establish under the situation of road information in driving trace generation according to vehicle, can prevent from same road is generated a plurality of situations of newly establishing road information, road information is newly established in correct generation.
In addition, (2) described map information generating systems begins the road chain in place and the identical relevant driving trace information of driving trace of road chain that described driving trace finishes the place is divided into groups to described driving trace, thereby newly establish under the situation of road information generating according to the driving trace of vehicle, can be according to the connection of chain and travel driving trace on same road of appropriate differentiation.
In addition, (3) described map information generating systems is to the driving trace of a plurality of driving trace information of collection, calculate the spacing distance between each driving trace, the relevant driving trace information of the driving trace of spacing distance in predetermined distance that calculates is divided into groups, thereby newly establish under the situation of road information generating according to the driving trace of vehicle, can be according to the configuration of driving trace and travel driving trace on same road of appropriate differentiation.
In addition, (4) described map information generating systems is to the driving trace of a plurality of driving trace information of collection, calculate the mean value of the spacing distance every between the position coordinates of predetermined distance, the driving trace information that the driving trace of mean value in predetermined distance at the interval that calculates is relevant is divided into groups, thereby newly establish under the situation of road information generating according to the driving trace of vehicle, can be according to the configuration of driving trace and travel driving trace on same road of appropriate differentiation.
In addition, (5) described map information generating systems is got rid of in the driving trace information of collecting and is speculated as vehicle and does not travel in the driving trace information of newly establishing on the road, driving trace information except the driving trace information of having got rid of is divided into groups, thereby newly establish under the situation of road information generating according to the driving trace of vehicle, in fact eliminating vehicle that can be correct does not travel at the driving trace of newly establishing on the road.Therefore, can also correct rapidly generation newly establish road information.
In addition, (6) described map information generating systems begins the road chain in place and the identical driving trace information of road chain in driving trace end place to driving trace, being speculated as vehicle does not travel and gets rid of newly establishing the driving trace information on the road, road information is newly established in generation according to the driving trace information except the driving trace information of having got rid of, thereby newly establish under the situation of road information generating, can prevent to generate and newly establish road information according to the driving trace in main facilitieses such as parking lot or shopping center of travelling according to the driving trace of vehicle.
In addition, (7) described map information generating systems driving trace information that the engine of vehicle in travelling is stopped is speculated as vehicle and does not travel and get rid of newly establishing the driving trace on the road, road information is newly established in generation according to the driving trace information except the driving trace information of having got rid of, thereby newly establish under the situation of road information generating, can prevent to generate and newly establish road information according to the driving trace in main facilitieses such as parking lot or shopping center of travelling according to the driving trace of vehicle.
In addition, (8) described map information generating systems driving trace information that vehicle is retreated under steam, being speculated as vehicle does not travel and gets rid of newly establishing the driving trace on the road, road information is newly established in generation according to the driving trace information except the driving trace information of having got rid of, thereby newly establish under the situation of road information generating, can prevent to generate and newly establish road information according to the driving trace in main facilitieses such as parking lot or shopping center of travelling according to the driving trace of vehicle.
In addition, (9) described map information generating systems begins the driving trace information of distance in predetermined distance between place and the described driving trace end place to driving trace, being speculated as vehicle does not travel and gets rid of newly establishing the driving trace on the road, road information is newly established in generation according to the driving trace information except the driving trace information of having got rid of, thereby newly establish under the situation of road information generating, can prevent from that driving trace according to for convenience and by the parking lot time from generating newly to establish road information according to the driving trace of vehicle.
Description of drawings
Fig. 1 is the simple structural drawing of the map information generating systems of expression present embodiment.
Fig. 2 is the block diagram of structure of the map information generating systems of expression present embodiment.
Fig. 3 is the figure of an example of the storage area of expression driving trace information D B.
Fig. 4 is the figure of an example that represents newly to establish the storage area of road information DB.
Fig. 5 is the block diagram of structure of the guider of expression present embodiment.
Fig. 6 is the key diagram of basic procedure of the map information generating systems of expression present embodiment.
Fig. 7 is the process flow diagram of detection data collection and treatment program of the map information generating systems of present embodiment.
Fig. 8 is the figure that obtains example of the driving trace information when representing on the road of vehicle ' in the road network that is not included in navigation map data.
Fig. 9 is the process flow diagram of newly establishing road information generation and notifier processes program of the map information generating systems of present embodiment.
Figure 10 is the figure of the driving trace information instances that is excluded in the step 12 of expression.
Figure 11 is the figure of the driving trace information instances that is excluded in the step 12 of expression.
Figure 12 is the figure of the driving trace information instances that is grouped in the step 13 of expression.
Figure 13 is the figure of the driving trace information instances that is grouped in the step 13 of expression.
Figure 14 is that the expression notice is newly established the figure of the notice of road information with the display frame of display.
Figure 15 is the process flow diagram of the map data update handling procedure of present embodiment map information generating systems.
Embodiment
Below, at map information generating systems of the present invention, the embodiment based on it has been specialized is elaborated with reference to accompanying drawing.
At first, utilize Fig. 1 that the simple structure of map information generating systems in the present embodiment 1 is described.Fig. 1 is the simple structural drawing of map information generating systems 1 in the present embodiment.
As shown in Figure 1, the map information generating systems in the present embodiment 1 comprise map home-delivery center 2 substantially, as the vehicle 3 of detection vehicle be arranged on guider 4 on the vehicle 3.
Here, map home-delivery center 2 collects and also to preserve the driving trace information as detection data that is sent by each vehicle 3 that travels in all parts of the country, and according to driving trace information generate relevant newly establish road newly establish road information.Then, generate more new data with reference to the road information of newly establishing that generated, the more new data that dispensing is generated, this more the map data update that is used for legacy version of new data be to comprise the redaction map datum of newly establishing road.In addition, more new data is divided into two kinds, a kind of is the new data more entirely that is used for the cartographic information that is stored in guider 4 all rewritten (following title upgrades entirely), and another kind is the difference update data in the regulation zone (to call difference update in the following text) of a updating map data.Below in Shuo Ming the present embodiment, special only to the conduct of difference update data more the embodiment of new data describe.Vehicle 3 is the vehicles on each road in the whole nation that travel, and constitutes probe vehicle system as detection vehicle with map home-delivery center 2.At this, probe vehicle system is meant the system that vehicle is come acquisition of information as sensor.Specifically, be such system: with speed data, the action situation of each system such as steering operation and gear is sent to the center with the GPS positional information to vehicle by communication module 5, at central side, the data of collecting is utilized as various information again.
At this, in the map generation system 1 of present embodiment, that obtained and be sent to the detection data of map home-delivery center 2 as vehicle 3, the position coordinates (latitude and longitude) of the vehicle 3 when travelling on the road that in the navigation map data 53 (with reference to Fig. 5) that guider 4 is had, does not comprise particularly including vehicle 3, the orientation, the speed of a motor vehicle.That is, the driving trace information of the relevant driving trace of vehicle 3 with on the road that does not comprise in the navigation map data 53 (with reference to Fig. 5) that guider 4 is had that travels the time is obtained and is sent as detection data.In addition, the vehicle 3 that can communicate by letter with map home-delivery center 2 there is no need to be many also to have only one.In this case, need not consider the driving trace of other vehicles, only the driving trace according to own vehicle upgrades navigation map data 53.
Guider 4 is mobile units, and it is arranged on the vehicle 3, represents map around the position of own vehicle according to institute's map data stored, and retrieval also guiding arrives the path of the destination that sets.Here, map home-delivery center 2 and guider 4 can by be loaded in advance DCM on the vehicle (DataCommunication Module: data communication module) or the vehicle of mobile phone etc. carry out two-way communication with communication module 5 (following letter only is called communication module 5), receive and dispatch between the two as various information such as the driving trace information of detection data and difference update data.
The guider 4 of present embodiment comes the map datum of updated stored when map home-delivery center 2 receives the difference update data according to the difference update data that receive.
In addition, in the map information generating systems 1 of the present embodiment of following explanation, guider 4 directly obtains the difference update data from map home-delivery center 2, carry out map and upgrade, but also can by user PC that the user had (Personal Computer: personal computer) or the retailer wait the point of sale to carry out the map renewal.
For example, when carrying out the map renewal, in the user PC that can come to communicate, download the difference update data from map home-delivery center 2 by communication networks such as internets with map home-delivery center 2 by user PC.Then, hope is temporarily stored the difference update data of downloading into HDD (Hard Disk Drive: hard disk), then with the data recording of storage in media such as CD-R or DVD-R, read this data by making guider 4, thus to guider 4 exchange difference update data.
When carrying out the map renewal by the point of sale, networks such as communication via satellite download to complete more new data on the point of sale PC that is arranged on the point of sale.And the HDD as the point of sale of storage medium that is connected on the PC of point of sale can pull down.Wish then to be connected with guider 4, thereby guider 4 is exchanged entirely more new data by the HDD with the point of sale of pulling down such as IEEE1394 (Institute of Electrical andElectronic Engineers 1394) standard.
Below, utilize Fig. 2 that the map home-delivery center 2 that constitutes map information generating systems 1 is elaborated.Fig. 2 is the block diagram of map information generating systems 1 structure of expression present embodiment.
As shown in Figure 2, map home-delivery center 2 comprise server (information collection unit, newly establish road information generation unit, information block unit, metrics calculation unit) 20, be connected with server 20 as the driving trace information D B24 of information recording part, newly establish road information DB25, central side cartographic information DB26, version management DB27, notice with display 28, central side communicator 29.
Server 20 comprises: CPU21, and it is as the calculation element and the control device of the integral body control of carrying out server 20; RAM22, it uses as processing memory when CPU21 carries out various computing; Internal storage devices such as ROM23, it writes down various control programs.Described various control program is used to carry out following processing etc.: improper information is got rid of and is handled, from vehicle 3 collect as getting rid of improper information the driving trace information of detection data; Information block is handled, and in the driving trace information that is not excluded, the driving trace information that travels on the same road is divided into groups; Newly establish road information and generate to handle, according to the driving trace information of grouping, to each group generate one relevant newly establish road newly establish road information; Priority set to be handled, and newly establishes road information to what generate, according to this vehicle ' number of newly establishing road priority is set; Newly establish the road information notifier processes, will newly establish road information according to the priority that sets and be presented at notice with on the display 28; More new data generates and handles, and according to legacy version map datum and redaction map datum, generation comprises the difference update data of newly establishing road information that do not comprised in the road network of legacy version map datum; Map datum sends to be handled, and the difference update data that generate is sent to the guider 4 of requirement.In addition, can replace CPU21 with MPU etc.
The storage of driving trace information D B24 accumulation is by the driving trace information of the relevant vehicle driving trace of each vehicle 3 collection that travels on the whole nation.The driving trace information of the driving trace information D B24 of present embodiment storage is the driving trace information of the relevant driving trace of vehicle 3 when travelling on the road that does not comprise in the road network of the navigation map data of guider 4.
Below, utilize Fig. 3 that the driving trace information that is stored among the driving trace information D B24 is described in more detail.Fig. 3 is the figure of an example of the storage area of expression driving trace information D B.
As shown in Figure 3, driving trace information comprises: begin chain number L SIt represents this chain number, that is, the existing road chain that from navigation map data, has comprised, the driving trace that begins the travels down that do not comprise to vehicle in the road network of navigation map data begins the chain number of the road chain (hereinafter referred to as begin chain) in place (the some s of Fig. 8); Finish chain number L EThe chain number that its expression is such, that is, the road that vehicle does not comprise from the road network of navigation map data, the driving trace that turns back to the existing road chain that comprises in the navigation map data finishes the chain number of the road chain in place (the some E of Fig. 8) (hereinafter referred to as finishing chain); Vehicle 3 travel on the road that in map datum, does not comprise the time, according to the rules the moment t, the position coordinates P that obtain of the time interval (for example every 1sec) (x, y), working direction N and speed of a motor vehicle S.
And accumulation stores the above-mentioned record information that travels of counting similar number with the data of collecting from each vehicle 3 among the driving trace information D B24.
On the other hand, newly establishing road information DB25 is the relevant storage unit of newly establishing road information of newly establishing road of storage, this newly establishes road information is to generate like this: as described later, with a plurality of driving trace information of storing among the driving trace information D B24, divide into groups according to each driving trace information that travels on the same road, newly establish road information thereby generate this.The road information of newly establishing that newly the establishing of present embodiment stored among the road information DB25 is relevant information of newly establishing road, it is to generate like this: improper information is got rid of processing (S12 of Fig. 9) and information block is handled (S13 of Fig. 9) to carrying out from the driving trace information of vehicle 3 collections, thereby, generate this relevant information of newly establishing road according to being divided into the driving trace information of travelling and newly establishing the relevant driving trace on the road same.In addition, also store such information, that is, handle by priority described later equally and that (S16 of Fig. 9) be provided with, relevant know or the information of the priority of navigation device 4 when providing and delivering with enterprising the working of display 28 in notice.
Below, utilize Fig. 4 to be described in more detail to newly establishing the road information of storing among the road information DB25 of newly establishing.Fig. 4 is the figure of an example that represents newly to establish the storage area of road information DB25.
Specifically, as shown in Figure 4, it comprises: the driving trace that exists that belongs to each grouping begins the begin chain number L of the existing road chain in place ASExist driving trace to finish the end chain number L of the existing road chain in place AEBelonging on the driving trace of grouping from the mean place coordinate P of beginning place every predetermined distance (for example 10m) A(X, Y).And shown in Figure 4 newly to establish the road of stipulating in the road information of newly establishing be such road, that is, and and from chain number L ASThe existing road chain begin, through position coordinates P A(X Y), arrives chain number L AEThe road of road chain.
In addition, central side cartographic information DB26 stores base map data 30 respectively according to each version, these base map data 30 generate according to the data or the input operation of outside input, are the basic map datums when upgrading the navigation map data of guider 4 storages.Here, version is meant and is used for the Production Time information of Production Time of diagram data definitely, can determine the time of map data creating by the reference version.In addition, central side cartographic information DB26 also stores difference update data 31 respectively according to each version, these difference update data 31 are made according to base map data 30 by server 20, and a part of difference update that is used for guider 4 map data stored is the redaction cartographic information.
And version management DB27 stores the relevant information of navigation map data version of storage in each guider 4.Here, navigation map data or base map data 30 store route guidance and the required various information of displayed map that comprise road network, for example comprise: be used for the chain data of the crossing intersection data of the map video data of displayed map, relevant each intersection, the node data that articulation point is arranged, relevant road (chain), the retrieve data that is used for searching route, relevant facility facility data, be used to retrieve the retrieve data in place etc.
In addition, notice is a kind of being used for newly to be established the notification unit that road information is notified to map home-delivery center 2 with what generate with display 28.Specifically, the notice of newly establishing road can show newly establishes map around road and its, and then can also show that other roads emphasize to show the map (with reference to Figure 14) of newly establishing road relatively.And map home-delivery center 2 is with reference to shown map, and actually carries out field investigation to newly establishing road, generates the base map data 30 that comprise the redaction of newly establishing road.In addition, the notice notice of newly establishing road information of carrying out with display 28 can be handled the priority that (S16 of Fig. 9) set according to priority and notifies.
Further, central side communicator 29 is to be used for the communicator that communicates with guider 4 by network 8.At this, LAN (Local Area Network)), WAN (Wide Area Network: wide area network), in-house network, mobile telephone network, telephone network, public telecommunication network, private wire network, the Internet etc. as network 8, can use communication system of following communication network for example etc.: LAN (Local Area Network:.For example can also use communication systems such as CS broadcasting by broadcasting satellite, BS broadcasting, ground wave digital television broadcasting, FM multi-broadcast.Can also use non-automatic fee system (ETC), the narrow domain communication system communication systems of using in the intelligent roadnet (ITS:IntelligentTransportation System) such as (DSRC) of stopping.
Below, use Fig. 5 that the simple structure of the guider 4 of formation present embodiment map information generating systems 1 is described.Fig. 5 is the block diagram of the structure of expression embodiment of the present invention guider 4.
As shown in Figure 5, the guider 4 of present embodiment comprises: handling part 41 is detected in the present place of detecting the vehicle present position, driving trace information D B42, information of vehicles DB43, cartographic information DB44, information navigation ECU (the begin chain determining unit of carrying out various computings according to input, finish the chain determining unit, beginning place detecting unit, finish the place detecting unit) 45, receive the operating portion 46 of operator's operation, LCD 47 to information such as operator's displayed maps, the loudspeaker 48 of outgoing route guiding related sound prompting, the reading device that can read recording mediums such as CD or DVD is a DVD driver 49, the communication module 5 that communicates with the traffic information center or the map home-delivery center 2 at VICS center etc.In addition, navigation ECU45 also is connected with the vehicle speed sensor 50 that detects the vehicle travel speed, the ACC switch 51 that detects the ON/OFF (being the startup/stop of engine) of ACC (attached key), the shift lever sensor 52 that detects gear.
Below each textural element that constitutes guider 4 is described.Now handling part 41 is detected by GPS61, geomagnetic sensor 62, range sensor 63, rotation direction sensor 64, the gyrosensor 65 as orientation detection portion, altitude gauge formations such as (not marking among the figure) in the place, can detect the position, orientation of present vehicle, to the distance of object (for example intersection) etc.
In addition, driving trace information D B42 is a storage unit, the relevant driving trace information of driving trace when its temporary transient store car 3 is travelled on the road that does not comprise in navigation map data 53 road networks of cartographic information DB44 storage.Specifically, GPS61 and gyrosensor 65 detect following information, and these information are stored among the driving trace information D B42 in order, and these information are: begin chain number L S, as shown in Figure 3, it is the chain number of this road chain, this road chain is that the existing road chain that vehicle has comprised from navigation map data begins the place to the driving trace of the travels down that beginning does not comprise in the road network of navigation map data; Finish chain number L E, it is the chain number of this road chain, this road chain is that the road that vehicle does not comprise from the road network of navigation map data finishes the place to the driving trace that returns the existing road chain that comprises in the navigation map data; In the time of vehicle 3 travels the road that does not comprise in map datum on according to the rules the moment t that obtains of the time interval (for example every 1sec) and position coordinates P (x, y); And working direction N and speed of a motor vehicle S.And,, the record information that travels that is stored among the driving trace information D B42 is sent to map home-delivery center 2 as detection data with predetermined timing.In addition, to the driving trace information that has sent, after each the transmission all with its deletion.
Information of vehicles DB43 is the storage unit that storage is provided with the relevant information of the vehicle 3 of guider 4.Information as vehicle 3 is correlated with stores for example vehicle type (common car, in-between car, large car, especially big car, automobile with small output volume etc.) or vehicle-width.
Cartographic information DB44 storage is used for the navigation map data 53 of the travel guiding and the route search of guider 4.And, in the present embodiment, use external memory and the recording medium of hard disk, but can also use disk such as floppy disk except hard disk as external memory as driving trace information D B42, information of vehicles DB43, cartographic information DB44.In addition, storage card, tape, magnetic drum, CD, MD, DVD, CD, MO, IC-card, light-card etc. can also be used as external memory.
At this, navigation map data 53 shows that by route guidance and map required various information constitute equally with foregoing base map data 30, for example by the facility data of the chain data of the crossing intersection data of the map video data that is used for displayed map, relevant each intersection, the node data that articulation point is arranged, relevant road (chain), the retrieve data that is used for searching route, relevant facility, be used to retrieve the retrieve data in place etc.
Navigation map data 53 can be by the region-wide map datum in the whole nation of update all in the lump full renewal or only upgrade the difference update of determining the area map data and upgrade.About the concrete renewal disposal route of full renewal and difference update,, here omit its explanation owing to be known technology.
In addition, the navigation ECU45 that constitutes guider 4 comprises: CPU71, and it is as the calculation element and the control device of the integral body control of carrying out guider 4; RAM72, it uses as processing memory when CPU71 carries out various computing, and the path data during the memory scan outbound path; ROM73, it stores various programs; Flash memory 74 internal storage devices such as grade, the program that its storage is read from ROM73.The various control programs of described ROM73 storage, except comprising the program of controlling usefulness, also comprise following program etc.: detection data collection and treatment program (Fig. 7), driving trace information when being used for obtaining vehicle 3 and travelling on the road that navigation map data 53 road networks at guider 4 do not comprise, and this driving trace information sent to map home-delivery center as detection data; The route guidance handling procedure is used for carrying out according to navigation map data 53 retrieval and the guiding in path; Map data update handling procedure (Figure 15) is used for carrying out according to the difference update data difference update of navigation map 53.And, can also use semiconductor memory, core memory (magnetic core) etc. as described RAM72, ROM73, flash memory 74 etc.In addition, also can wait replaced C PU71 and as calculation element and control device with MPU.
Then, utilize Fig. 6 that the basic procedure by the entire system of the above-mentioned map information generating systems that constitutes 1 is described.Fig. 6 is the key diagram of the basic procedure of expression present embodiment map information generating systems 1.
At first, as shown in Figure 6, guider 4 carries out map match according to the testing result of various sensors such as navigation map data 53 that is stored in cartographic information DB44 and GPS61, detects in the time of can't extracting match point the position coordinates (dimension and longitude) etc. of the vehicle 3 of when travels down (navigation map data 53 of vehicle 3 in guider 4 do not comprise).Then, detected position coordinates etc. is sent to map home-delivery center 2 as driving trace information.
On the other hand, map home-delivery center 2 receives the driving trace information from the guider 4 of each vehicle 3, and collects received data, carries out data analysis.In data analysis, at first get rid of detected exceptional values such as mistake because of device.Then, get rid of to be predicted as and do not have vehicle 3 and travel in the driving trace information of newly establishing on the road, thus the scope of reduced objects data.Then, the driving trace information of travelling on same road is divided into groups, newly establish road information what each group generated that relevant under its group newly establish road.Further, at the number that travels of newly establishing travels down of newly establishing road information priorities are set according to vehicle.
Then, map home-delivery center 2 newly establishes road information according to what set priority, generates map datum.In the generative process of map datum, at first will newly establish road information and be presented at notice with on the display 28 according to the priority of having set, map home-delivery center 2 sides notice is newly established road information.Then, map home-delivery center 2 is with reference to shown road information, the actual relevant information of newly establishing road of on-site collection of going to of newly establishing.Then, according to the information of newly establishing road information and on-site collection of notice with demonstration on the display 28, making comprises the redaction difference update data of newly establishing road.Then, to the guider that has version updating to require, according to newly establishing the priority dispensing difference update data that road information is set.
Relative therewith, the guider 4 that receives the difference update data is updated to the map datum that comprises the redaction of newly establishing road with the navigation map data of storing among the cartographic information DB44 53.Then, guider 4 carries out map match once more according to the navigation map data 53 that is upgraded, and same then repeating generates carries out the new generation of newly establishing road information and the transmission of difference update data.
Below, the detection data collection and treatment program of the server 20 of the navigation ECU45 of vehicle 3 in the map information generating systems 1 of present embodiment and map home-delivery center 2 being carried out according to Fig. 7 describes.Fig. 7 is the process flow diagram of the detection data collection and treatment program of present embodiment map information generating systems 1.Here, driving trace information when detection data collection and treatment program is obtained vehicle 3 and travelled on the road that does not comprise in the road network of the navigation map 53 of guider 4, it is sent to map home-delivery center 2 as detection data, and the driving trace information of being sent by each vehicle 3 is collected by map home-delivery center 2 simultaneously.And the procedure stores shown in the process flow diagram perhaps is stored among RAM22, the ROM23 that server 20 possessed in RAM72, ROM73 that guider 4 is possessed among following Fig. 7, by CPU71 or CPU21 at regular intervals (for example, every 200ms) carry out.
At first, according to Fig. 7 the performed detection data collection and treatment program of the CPU71 of guider 4 is described.In step (below, economize slightly S) 1, CPU71 detects the present position of vehicle by GPS61.Then in S2, CPU71 adopts the present position of detected vehicle among the described S1 and the navigation map data 53 that cartographic information DB44 is stored, and carries out map match, thus the position of the vehicle definitely on the diagram data.
Then, in S3, CPU71 judges whether the match point that is not extracted is arranged in the map match of described S2, judges whether that promptly row just sails on the road that does not comprise in the road network of the navigation map data 53 of guider 4.Its result, (S3: "No"), move to S6 when judging on the road that in the road network of navigation map data 53, comprises that just travels.
On the other hand, if judge (S3: "Yes") on the road that in the road network of navigation map data 53, does not comprise that just travels, then the detected present position coordinates of GPS61 is defined as a driving trace S that turns up the soil, this driving trace begins place S and is meant, the place of the road driving that does not comprise in existing road chain navigation map datum 53 road networks that vehicle begins to comprise from navigation map data 53.And then according to detected present position coordinates of GPS61 and navigation map data 53, the road chain that driving trace is begun place S is defined as begin chain, thereby obtains begin chain number L S(S4).And described S4 is equivalent to the processing of begin chain determining unit.
Then, in S5, CPU71 by GPS61 and various sensor at regular intervals (for example) every 1sec obtain various parameters as driving trace information, and it is stored among the driving trace information D B42.At this, Fig. 8 is the example that the expression vehicle ' is obtained driving trace information on the road 101 that the road network of navigation map data 53 does not comprise the time.
The expression vehicle enters road 101 from existing road chain 102 among Fig. 8, gets back to the example that travels of road chain 103 then.When travelling on road shown in Figure 8, at the appointed time at interval (for example 1sec) pass through some P11～P15, by GPS61, gyrosensor 65, vehicle speed sensor 50 obtain moment t and position coordinates P (x, y) and working direction N and speed of a motor vehicle S.And then, when the engine that detects vehicle by ACC switch 51 stops, perhaps detect gear and be made as " R " when retreating by shift lever sensor 52, this situation and the position coordinates of this moment are also stored as driving trace information.
And then in S6, CPU71 judges whether vehicle is got back on the included existing road of the road network of navigation map data 53 of guider 4.Its result, (S6: "Yes"), move to S7 in the time of on being judged as the included road of the road network of getting back to navigation map data 53.Relative therewith, (S6: "No"), then return S5, continue to obtain driving trace information in the time of on being judged as the included road of the road network of not getting back to navigation map data 53.
In S7, CPU71 is defined as driving trace with the detected present position coordinates of GPS61 and finishes place E, this driving trace finishes place E and be meant that the road that vehicle does not comprise turns back to the place of the existing road chain that comprises in the navigation map data 53 from the road network of navigation map data 53.And then according to detected present position coordinates of GPS61 and navigation map data 53, the road chain that driving trace is finished place E is defined as finishing chain, obtains and finishes chain number L EAnd described S7 is equivalent to finish the processing of chain determining unit.
In S8, CPU71 judges whether it is the opportunity that the driving trace information (with reference to Fig. 3) that described S4 obtains is sent to map home-delivery center 2 as detection data.If judge is that the opportunity that sends, (S8: "Yes"), the driving trace information that then will be stored among the driving trace information D B42 sent (S9).Relative therewith, if be judged as (the S8: "No"), then do not send driving trace information, finish detection data collection and treatment program on opportunity that is not transmission.
Next, according to Fig. 7 the detection data collection and treatment program of the CPU21 execution of map home-delivery center 2 is described.At first, CPU21 receives the driving trace information that is sent by guider 4 in S101.Then, the driving trace information accumulation that will receive in described S101 in S102 stores among the driving trace information D B24 (with reference to Fig. 3).Then, utilize the driving trace information of storage, generate as described later and newly establish road information and difference update data.Described S101 and S102 are equivalent to the processing of information collection unit.
Below, road information generates and the notifier processes program describes to newly establishing of carrying out of the server 20 of map home-delivery center 2 in the present embodiment map information generating systems 1 according to Fig. 9.Fig. 9 is the process flow diagram of newly establishing road information generation and notifier processes program of the map information generating systems 1 of present embodiment.At this, newly establish road information generation and notifier processes program and carry out such processing: according to the driving trace information of 2 collections of map home-delivery center in the described detection data collection and treatment program (Fig. 7), generate relevant newly establish road newly establish road information, and the road information of newly establishing that will generate notifies map home-delivery center 2 sides.And the program of representing in following Fig. 9 flow process is stored among the RAM22 or ROM23 of server 20, by CPU21 (for example every 200ms) execution at regular intervals.
At first, in S11, CPU21 gets rid of the detected exceptional values such as mistake because of device from driving trace information, and this driving trace information is newly to collect and be stored in information the driving trace information D B24 from each vehicle 3.Specifically, in the position coordinates that should be the vehicle 3 obtained continuously,, then get rid of the data that this position coordinates is correlated with midway if having only the coordinate of its a certain point different fully with other position coordinateses.
Then, in S12, CPU21 carries out improper information and gets rid of and handle, and described improper information gets rid of that to handle be to get rid of to estimate not have vehicle 3 and travel in the driving trace information processing of newly establishing on the road from the driving trace information of new collection.This is because even vehicle is just travelling in the map datum of vehicle navigation apparatus on the non-existent road, this road is also not necessarily newly established road.For example, even vehicle is in route deviation is sailed parking lot or facility into the time,, then can thinks and travel in map datum on the non-existent road if only with reference to the result of map match.As a result, just might generate originally non-existent relevant newly establish road newly establish road information.So, specifically, satisfy any one condition in the condition of following (1)～(5) as long as judge driving trace information in the present embodiment, then this driving trace information will be excluded.
(1) gets back to the relevant driving trace information of driving trace of same chain.
(2) the relevant driving trace information of the driving trace during the engine Halfway Stopping.
(3) the relevant driving trace information of the driving trace of vehicle rollback in the way.
(4) driving trace begins the driving trace information of being correlated with less than the driving trace of predetermined distance (for example 10m) in the interval between place S and the driving trace end place E.
(5) the relevant driving trace information of driving trace of in the included road network of base map data that map home-delivery center 2 has 30, travelling.
For example, Figure 10 is the figure of driving trace 105 that the driving trace information of described (1) condition is satisfied in expression.Driving trace 105 shown in Figure 10 is through some P from existing road chain 106 11～P 14, return identical road chain 106.This driving trace is to sail the possibility of the driving trace in the main facilitieses such as parking lot or shopping center into than higher, be travel extremely low in the possibility of newly establishing on the road.So be judged as the driving trace information that is not to travel newly establishing on the road, and get rid of.
Figure 11 is the figure of driving trace 107 that the driving trace information of described (4) condition is satisfied in expression.Driving trace 107 shown in Figure 11 is that the driving trace from existing road chain 108 begins the driving trace that place S sails road chain 109 into and finishes place E, and driving trace begin place S to driving trace finish place E apart from n deficiency 10m.This driving trace is the possibility height of the driving trace by the parking lot in order to take a short cut, and it is extremely low in the possibility of newly establishing road to travel.Do not establish the driving trace information of road newly so being judged as is to travel, and get rid of.
Equally, the driving trace that satisfies the driving trace information of described (2), (3) condition also is to sail the possibility of the driving trace in the main facilitieses such as parking lot or shopping center into than higher, and it is extremely low in the possibility of newly establishing on the road to travel.Do not establish the driving trace information of road newly so being judged as is to travel, and get rid of.
Satisfying the driving trace of the driving trace information of described (5) condition, is the driving trace when travelling on the road of having grasped as existing road in map home-delivery center 2.So this driving trace is the driving trace on this road of travelling, this road is meant, owing to guider 4 is not updated to the existing road that the cartographic information of redaction leads to errors and collects.Therefore, be judged as the driving trace information that is not to travel newly establishing on the road, and get rid of.In addition, get rid of in the processing in the improper information of described S12, eliminating is judged as the driving trace information that satisfies any one condition of described (1)～(5), but also can get rid of the driving trace information that satisfies a plurality of conditions in described (1)～(5) that is judged as.
Next, in S13, CPU21 is divided into identical group to the driving trace information of new collection with the driving trace information of travelling on same road, thereby carries out the information block of driving trace information block is handled.Specifically, in the present embodiment, the driving trace information that will satisfy following (1), (2), (3) full terms is divided into same group.
(1) the driving trace information of the driving trace that the begin chain of driving trace is identical with finishing chain.
(2) the driving trace information of the driving trace of distance in predetermined distance (for example 30m).
At this, come the determination methods of eligible to judging whether (2) to describe with the object lesson of Figure 12.Figure 12 represents two driving trace information.Driving trace information is that the driving trace from the existing road chain 111 begins place S 1The driving trace that drives on the existing road chain 112 finishes place E 1The driving trace information of driving trace.In addition, driving trace line 113 is that the coordinate that passes through a little according to vehicle makes the driving trace of driving trace information be similar to the line of straight line.
In addition, another driving information is that driving trace from the same existing road chain 111 begins the driving trace that place S2 drives on the existing road chain 112 and finishes place E 2The driving trace information of driving trace.In addition, driving trace line 114 is that the coordinate that passes through a little according to vehicle makes the driving trace of driving trace information be similar to the line of straight line.
In the present embodiment, begin place S from driving trace 1, S 2Beginning when the mean value of the standoff distance between the position coordinates of predetermined distance is in predetermined distance (for example 30m), is thought the condition that satisfies described (2).
Specifically, as shown in figure 12, the driving trace from driving trace line 113 begins place S 1The radius that draws is the round C of r 11, calculate circle C 11Intersection point T with driving trace line 113 11Coordinate.In addition, the driving trace from the driving trace line 114 begins place S 2Draw a round C that radius is r 21, calculate circle C 21Intersection point T with driving trace line 114 21Coordinate.
Then, from the intersection point T of driving trace line 113 11The radius that draws is the round C of r 12, calculate round C 12Intersection point T with driving trace line 113 12Coordinate.In addition, from the intersection point T of driving trace line 114 21The radius that draws is the round C of r 22, calculate round C 22Intersection point T with driving trace line 114 22Coordinate.Calculate intersection point T with same method below 13～T 16, intersection point T 23～T 26Coordinate.Then, calculate intersection point T respectively 11And T 21Between distance, intersection point T 12And T 22Between distance, intersection point T 13And T 23Between distance, intersection point T 14And T 24Between distance, intersection point T 15And T 25Between distance, intersection point T 16And T 26Distance, if its mean value in predetermined distance (for example 30m), then is judged as two driving trace information shown in Figure 12 the driving trace information of the driving trace of standoff distance in predetermined distance (for example 30m), and they are divided into one group.
In addition, when as shown in figure 13 the driving trace information more than 3 being carried out the judgement of described condition (2), for example, antinode T 11～T 1N, intersection point T 21～T 2N, intersection point T 31～T 3N... select representative point respectively, if the range averaging between intersection point and the representative point is in predetermined distance (for example 30m), then this driving trace information is judged as the driving trace information of the driving trace of standoff distance in predetermined distance (for example 30m), and they are divided into one group.
In addition, also can utilize standard deviation to judge.In this case, with the range averaging between intersection point and the representative point at ± σ with interior driving trace information, be judged as the driving trace information of the driving trace of standoff distance in predetermined distance, and they be divided into one group.And described S13 is equivalent to the processing of information block unit and metrics calculation unit.In addition, in the information block of described S13 was handled, the driving trace information that will be judged as satisfied (1), (2) two conditions was divided into groups, but also can satisfied with being judged as (1), the driving trace information of a condition in (2) divides into groups.
Then, in S14, CPU21 newly establishes road information and generate to handle, that is, to each group of dividing into groups among the described S13, generate of determining by the driving trace information that belongs to each group newly establish road relevant newly establish road information.Specifically, as shown in Figure 4,, calculate the begin chain number L of each group to the driving trace information of grouping AS, finish chain number L AE, and calculate from the beginning place every the mean place coordinate P of predetermined distance (for example 10m) at the driving trace that belongs to each group A(X Y), generates according to its combination and newly to establish road information.And, when having a plurality of groups, generate the same number of road information of newly establishing of number and group.But, generate the group that the driving trace information of collecting again after processing finishes is classified for last time newly establishing road information, regeneration is not newly established road information.In addition, described S14 is equivalent to newly establish the processing of road information generation unit.
And then in S15, CPU21 calculates vehicle and newly establishes the number that travels of newly establishing travels down in the road information what described S14 generated.Specifically, as the number of the driving trace information in same group of the basis of newly establishing road information that is generated, be exactly that vehicle is newly established the number that travels of travels down at this.
In addition, in S16, CPU21 is several to newly establishing road information setting priority according to travelling of calculating among the described S15.Specifically, from the number that travels many newly establish road relevant newly establish road information, set priority successively.
Then, in S17,, utilize notice newly to establish road information to map home-delivery center 2 sides notice with display 28 according to the priority that described S16 sets.At this, Figure 14 is that the expression notice is newly established the figure of the notice of road information with the display frame 120 of display 28.
As shown in figure 14, display frame 120 constitutes by comprising the peripheral map picture of newly establishing road 121 and newly establishing road tabulation 122.At this, newly to establish road tabulation 122 and will represent that the address of newly establishing site of road illustrates with the form of tabulating, the priority of setting is leaned in tabulation more by the last road of newly establishing more.And, when the user selects newly to establish road from newly establishing road tabulation 122, selected newly establish road and its peripheral map can be presented at notice with on the display 28.For example, in Figure 14, that has selected priority the highest " liking county magistrate zero * city △ zero street " in newly establishing road tabulation 122 newly establishes road, newly establishing road 121 and can be presented on the map correspondingly.Thereby, preferentially notify priority high newly establish road information.
Next, the map data update handling procedure of the server 20 of the navigation ECU45 of vehicle 3 in the map information generating systems 1 of present embodiment and map home-delivery center 2 being carried out according to Figure 15 describes.Figure 15 is the process flow diagram of the map data update handling procedure of present embodiment.At this, the map data update handling procedure is the difference update data of the new dispensing of home-delivery center 2 according to the map, and the appointed area of the navigation map data 53 of guider 4 is updated to the redaction map datum.And, among RAM72, the ROM73 or RAM22, ROM23 in the server 20 of the following procedure stores shown in the process flow diagram in Fig. 7 in guider 4, carry out every the stipulated time (for example, every 200ms) by CPU71 or CPU21.
At first, according to Figure 15 the map data update handling procedure of the CPU71 execution of guider 4 is described.At first in S21, CPU71 judges whether to satisfy the condition that map upgrades beginning, specifically, certain condition in judging whether to meet the following conditions, these conditions are: attached lock is changed to ON; Utilize operating portion 46 to carry out registration (comprising change) from residence; Utilize operating portion 46 to be provided with the destination of route search.Then, when judge do not satisfy any one condition (S21: in the time of "No"), the end process program; Satisfy certain condition (S21: in the time of "Yes"), move to S22 when judging.
In S22, CPU71 sends to map home-delivery center 2 and is used to carry out the navigation information that map upgrades.Here, the information that sends as navigation information comprises: determine guider 4 identification id, registration from the coordinate of residence and the coordinate that is provided with the destination under the situation of destination.
Then, in S23, CPU71 receives the difference update data 31 that sent by map home-delivery center 2 by communication module 5.And, comprise the version information of the version that is used for determining difference update data 31 in the difference update data 31 that receive.Further in S24, utilize the navigation map data of storing among 31 pairs of map information D of the difference update data B44 that receives among the described S23 53 to carry out difference update and handle.Its result is updated to and comprises the new map datum of newly establishing road.
Below, the map data update handling procedure performed to the CPU21 of map home-delivery center 2 describes.At first, in S121, CPU21 receives from guider 4 and is used to carry out the navigation information that map upgrades.Here, when connecting the power supply of guider 4, or when the registration that exists from residence, or when having set the destination, send navigation informations from guider 4.
Then, in S122, CPU21 obtains the version of the navigation map data of storing among the cartographic information DB44 of present guider 4 53.Specifically, with reference to version management DB27,, determine guider 4 as upgating object according to the identification id that receives as navigation information among the described S121, for each zone, from version management DB27, extract the version information of the navigation map data 53 of determined guider 4.
Then, in S123, CPU21 carries out following processing: in the upgating object zone of the guider 4 that sends navigation information, the version of the map datum that present guider 4 is had and the latest edition of the map datum that map home-delivery center 2 has compare, and judge whether the zone (S124) that exists needs to upgrade.And the upgating object zone is because of guider 4 begins the condition of the difference update processing of map datums, the destination locations difference difference from residence position and setting of registration.
Then, if be judged as the zone (S124: "Yes"), then from central side cartographic information DB26, extract and upgrade the required whole difference update data 31 (S125) in its zone that existence need be upgraded.Then, the difference update data of extracting 31 are distributed to guider 4 (S126).At this, special in the map information generating systems 1 of present embodiment, when sending the difference update data, the high high priority data of the priority of newly establishing road information that newly appends is distributed to guider 4.
On the other hand, there is not zone that need to upgrade (S124: "No"), then navigation device 4 does not send difference update data 31, and end process if be judged as.
By above-mentioned detailed description, in present embodiment map information generating systems 1, driving trace information in the time of will travelling the road that in the navigation map data 53 of guider 4, does not comprise as the vehicle 3 of detection vehicle, be sent to map home-delivery center 2 (S7) as detection data, on the other hand, map home-delivery center 2 receives the driving trace information of sending from the guider 4 of each vehicle 3, and collects the data that receive.Then, get rid of estimating not have vehicle 3 travels in the driving trace information of newly establishing on the road, thereby the scope of reduced objects data (S12), further to the driving trace information on same road of travelling divide into groups (S13), then to each group generate one newly establish road relevant newly establish road information (S14).Like this, generating according to the driving trace of vehicle when newly establishing road information, in fact correct eliminating does not have vehicle 3 and travels at the driving trace of newly establishing on the road, in addition, can prevent from same road is generated a plurality of road informations of newly establishing.Therefore, can also correct rapidly generation newly establish road information.
In addition, begin the identical driving trace information of road chain of road chain with the driving trace end place E of place S for driving trace, being speculated as vehicle does not travel and is newly establishing on the road and with its eliminating, thus, can prevent to generate and newly establish road information according to the driving trace in main facilitieses such as parking lot or shopping center of travelling.Further, the road chain that driving trace is begun place S divides into groups with the identical driving trace information of road chain that driving trace finishes place E, thereby can be according to the connection of chain and travel driving trace on same road of correct differentiation.
In addition, the travelling driving trace information, the driving trace that retreat in the way of driving trace information, the vehicle that stops in the way of travelling for the engine of vehicle 3 begins place S and driving trace and finishes the driving trace information of distance within predetermined distance between the E of place, is speculated as vehicle 3 and do not travel newly establishing on the road its eliminating.Therefore, can prevent to generate and newly establish road information according to travel driving trace in main facilitieses such as parking lot or shopping center or the driving trace when cutting across the parking lot.
And then, driving trace for a plurality of driving trace information of collecting, calculate the mean value of the standoff distance every between the position coordinates of predetermined distance, mean value to the standoff distance that calculates divides into groups with the relevant driving trace information of interior driving trace at predetermined distance, thus, generating according to the driving trace of vehicle when newly establishing road information, can be according to the configuration of driving trace and travel driving trace on same road of correct differentiation.
The present invention is not defined in the described embodiment, can carry out various improvement certainly in the scope that does not break away from spirit of the present invention, distortion.
In the present embodiment, by the driving trace information (S5) of guider 4 registration of vehicle 3, determine begin chain or finish chain (S4, S7); By map home-delivery center 2 from each vehicle 3 collect driving trace information (S102), get rid of improper data (S11, S12), grouping information (S13), generate and newly establish road information (S14), set priority (S16).But, described processing by in guider 4 and the map home-delivery center 2 any one carry out can.
For example, as other embodiments, can be by the driving trace information (S5) of guider 4 registration of vehicle 3, determine begin chain or finish chain (S4, S7), (S11 S12), collects driving trace information (S102), the grouping information (S13) of having got rid of improper data by map home-delivery center 2 from each vehicle 3 to get rid of improper data, generate and newly establish road information (S14), set priority (S16).
As other embodiments, can be all by guider 4 determine begin chains or finish chain (S4, S7), get rid of improper data (S11, S12), grouping information (S13), generate and newly establish road information (S14) and set priority (S16).In this case, can not consider the driving trace of other vehicles and generate and newly establish road information, newly establish road information and then need not through map home-delivery center 2 but generate.Therefore, map home-delivery center 2 sides need not to carry out the actual road investigation of newly establishing, and just can upgrade navigation map data 53.Can reduce communication cost like this, and updating map data rapidly.
And then, as other embodiments, guider 4 can a registration of vehicle 3 driving trace information (S5), and collect driving trace information (S102), determine that (S4 S7), gets rid of improper data (S11 for begin chain or end chain from each vehicle 3 by map home-delivery center 2, S12), grouping information (S13) generates and newly establishes road information (S14), sets priority (S16).
In addition, in the present embodiment, newly establish the notice and the dispensing of road information according to the priority of setting, and also can carry out according to priority for the renewal of navigation map data 53.For example, can preferentially comprise the renewal of the difference update data of newly establishing road information that priority is high.
In addition, in the present embodiment, the notice that has by map home-delivery center 2 with display 28 notify generated newly establish road information, but the PC that also can be had by the user of guider 4 notifies.That is, in the described S16 of Fig. 9, priority is set after, be distributed to user PC by will newly establishing road information, thereby the user can confirm newly to establish road information by PC.And for to user PC distribution information, preferably that priority is the high road information of newly establishing preferentially sends.

Claims (9)

1. map information generating systems, comprise information collection unit and newly establish the road information generation unit, this information collection unit collect with the road that in the road network of cartographic information, does not comprise that travels on the relevant driving trace information of driving trace of vehicle, this newly establishes the road information generation unit driving trace information collected according to described information collection unit, generate with newly establish road relevant newly establish road information, this map information generating systems is characterised in that
Comprise the information block unit, this information block unit divides into groups to the driving trace information of travelling on same road in the collected driving trace information of described information collection unit respectively,
The described road information generation unit of newly establishing is according to by the driving trace information of described information block unit packet, to each group generate one with newly establish road relevant newly establish road information.
2. map information generating systems according to claim 1 is characterized in that,
Comprise the begin chain determining unit and finish the chain determining unit,
This begin chain determining unit is used for determining that driving trace begins the road chain in place, this driving trace begins the place and is meant, place during road driving that vehicle included existing road chain from described cartographic information begins not comprise in the road network of described cartographic information
This end chain determining unit is used for determining that driving trace finishes the road chain in place, this driving trace finishes the place and is meant, place when the road that vehicle does not comprise from the road network of described cartographic information turns back to existing road chain included in the described cartographic information
Described information block unit begins the place to described driving trace road chain divides into groups with the identical relevant driving trace information of driving trace of road chain that described driving trace finishes the place.
3. according to claim 1 or 2 described map information generating systems, it is characterized in that,
Comprise metrics calculation unit, this metrics calculation unit is calculated the standoff distance between each driving trace to the driving trace of the collected a plurality of driving trace information of described information collection unit,
Described information block unit pair divides into groups with the relevant driving trace information of interior driving trace at predetermined distance with the standoff distance that described metrics calculation unit calculates.
4. map information generating systems according to claim 3 is characterized in that,
Described metrics calculation unit is to the driving trace of a plurality of driving trace information, calculate the standoff distance between the position coordinates of predetermined distance mean value and as the standoff distance between the driving trace.
5. map information generating systems according to claim 1 is characterized in that,
Comprise the information rejected unit, this information rejected unit is got rid of to be speculated as in the collected driving trace information of described information collection unit and is not had vehicle ' in the driving trace information of newly establishing on the road,
Described information block unit divides into groups to following driving trace information, and this driving trace information is meant, the driving trace information except the driving trace information that described information rejected unit is got rid of.
6. map information generating systems according to claim 5 is characterized in that,
Comprise the begin chain determining unit and finish the chain determining unit,
This begin chain determining unit is used for determining that driving trace begins the road chain in place, this driving trace begins the place and is meant, place during road driving that vehicle included existing road chain from described cartographic information begins not comprise in the road network of described cartographic information
This end chain determining unit is used for determining that driving trace finishes the road chain in place, this driving trace finishes the place and is meant, place when the road that vehicle does not comprise from the road network of described cartographic information turns back to existing road chain included in the described cartographic information
Described information rejected unit is got rid of described driving trace and is begun the road chain in place and the identical driving trace information of road chain in described driving trace end place.
7. according to claim 5 or 6 described map information generating systems, it is characterized in that,
Comprise that engine stops detecting unit, this engine stops detecting unit and is used to detect vehicle motor and stops,
Described information rejected unit is got rid of described engine and is stopped the driving trace information that the detected middle engine that travels of detecting unit stops.
8. according to any described map information generating systems in the claim 5 to 7, it is characterized in that,
Comprise retreating detecting unit, this retreats detecting unit and is used to detect vehicle rollback,
Described information rejected unit get rid of described retreat detecting unit detected travel in the driving trace information that retreats.
9. according to any described map information generating systems in the claim 5 to 8, it is characterized in that,
Comprise beginning place detecting unit and finish the place detecting unit,
This begins the place detecting unit and is used to detect driving trace and begins the place, this driving trace begins the place and is meant, place during road driving that vehicle included existing road chain from described cartographic information begins not comprise in the road network of described cartographic information
This end place detecting unit is used to detect driving trace and finishes the place, and this driving trace finishes the place and is meant, the place the when road that vehicle does not comprise from the road network of described cartographic information turns back to existing road chain included in the described cartographic information,
Described information rejected unit get rid of described driving trace begin place and described driving trace finish between the place distance at predetermined distance with interior driving trace information.
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