JPWO2014097445A1 - Map information generating apparatus and map information generating method - Google Patents

Abstract

When a new road is detected, the road information acquisition unit (720) acquires road information regarding the new road, and the environment information acquisition unit (730) acquires environmental information of the new road. Subsequently, the updated map generation unit (740A) is eligible for additional registration to the map in the recording unit (710A) of the new road based on the traffic amount information, road sign information, etc. included in the environmental information. Determine. Then, if it is determined by the determination of the eligibility that the new road is eligible for registration, the updated map generation unit (740A) generates road registration information related to the new road based on the road information, The generated road registration information is added to the map information in the recording unit (710A). As a result, when new road information is registered in the map, registration of roads in which an increase in traffic volume is not desirable is reasonably and efficiently excluded.

Description

  The present invention relates to a map information generation device, a map information generation method, a map information generation program, and a recording medium on which the map information generation program is recorded.

  Conventionally, navigation systems for guiding and guiding a travel route of a moving body such as a vehicle have been widely used. Advances in technology related to such navigation systems are remarkable, and various technologies for improving user convenience have been proposed.

  As one of such proposed technologies, if the probe vehicle is not traveling on a new road in the map distribution center based on travel locus information when traveling on a point not included in the map data sent from the probe vehicle. There is a technique for registering map data after excluding predicted travel locus information (see Patent Document 1: hereinafter referred to as “conventional example 1”). In the technique of the conventional example 1, the distance between the first point where the travel of the point not included in the road link in the map data is started and the second point returned to the road link in the map data is less than a predetermined distance. The map data is updated by removing the running locus information.

  As another proposed technique, there is a technique for adding a road to the map data when the vehicle travels on a road that is not registered on the map data of the navigation system (refer to Patent Document 2 below). Called Example 2). In the technique of Conventional Example 2, if the current position of the host vehicle deviates from the road on the map data and travel along an unregistered road that is not registered on the map data is detected, map data that adds the unregistered road is added. Ask the user whether or not to update When the user's intention to update is confirmed, the unregistered road is added to the map data.

JP 2008-164831 A JP 2006-071753 A

  In the technique of Conventional Example 1 described above, places other than roads such as private land are excluded from road update registration. However, if it is an unregistered road, a road where the increase in the traffic volume of the vehicle, such as a busy road, a school road, a sidewalk or a bicycle-only road, is not preferable is registered as a new road.

  The occurrence of such a situation that a new road that does not increase in traffic volume is undesirably registered depends on the judgment of the user whether or not to register a new road as in the technique of Conventional Example 2. It is suppressed. However, when the driver determines whether or not a new road is registered while driving, there is a possibility of adversely affecting driving safety. In addition, when it is determined that there is no driving operation after traveling on a new road, if the presence or absence of registration of the new road is judged, the memory regarding the situation of the new road becomes ambiguous, and the vehicle There is a case where a new road where an increase in traffic volume is not desirable is registered.

  In addition, considering the ultra-small electric vehicles that are expected to become popular today, due to the size of the car body, the traffic on pedestrian and bicycle roads that are originally prohibited is physically ( Road width and vehicle body width), and the traffic frequency of roads where it is not desirable to increase the traffic volume of vehicles such as narrow roads and roads with heavy traffic is considered to increase compared to conventional vehicles. It has been. If such a road is registered as a new road, the number of registered roads in which an increase in the traffic volume of the vehicle is undesirable is further increased.

  In addition, if the information on the road whose registration number has increased in this way is made available to other vehicles, a situation in which the traffic volume on the road where an increase in the traffic volume of the vehicle is undesirable is further increased. Furthermore, a road on which a normal vehicle or a large vehicle cannot travel due to the relationship between the road width and the vehicle width is also presented as road information in the navigation of the normal vehicle or the large vehicle.

  The present invention has been made in view of the above circumstances, and when registering a new road on a map, it is possible to rationally and efficiently register a road where an increase in the traffic volume of a moving object is not preferable. It is an object of the present invention to provide a map information generation apparatus and a map information generation method that can be excluded.

  According to a first aspect of the present invention, a storage unit that stores a map; and road information acquisition that acquires road information about the road when a moving body moves on a road that is not included in the map in the storage unit. Based on the road information acquired from the road information acquisition unit, the environmental information acquired by the environmental information acquisition unit, and the map, An updated map generating unit that generates an updated map in which the road is added to the map, and the updated map generating unit, when the environment of the road reflected in the environmental information satisfies a predetermined condition, The map information generating apparatus, wherein the road is added to a map in the storage unit.

  According to a second aspect of the present invention, a storage unit that stores a map; a road information acquisition unit that acquires road information related to a road that is not included in the map in the storage unit from a moving body that has moved the road; An environmental information acquisition unit that acquires environmental information of the road from the mobile body; the road information acquired from the road information acquisition unit; the environmental information acquired by the environmental information acquisition unit; and the map And an updated map generating unit that generates an updated map in which the road is added to the map, wherein the updated map generating unit satisfies a predetermined condition for the environment of the road reflected in the environment information In this case, the map information generating apparatus is characterized in that the road is added to the map in the storage unit.

  From a third point of view, the present invention is a map information generation method used in a map information generation apparatus that includes a storage unit that stores a map and updates the map, and is included in the map in the storage unit. A road information acquisition step of acquiring road information relating to the road when a moving body moves on a non-road; an environment information acquisition step of acquiring environmental information of the road; and the acquired in the road information acquisition step An update map generation step of generating an update map in which the road is added to the map based on the road information, the environment information acquired in the environment information acquisition step, and the map, and the update In the map generation step, when the road environment reflected in the environmental information satisfies a predetermined condition, the road is added to the map in the storage unit. Is an adult way.

  From a fourth aspect, the present invention is characterized by comprising a storage unit that stores a map, and causing a computer included in a map information generation device that updates the map to execute the map information generation method of the present invention. This is a map information generation program.

  From a fifth aspect, the present invention includes a storage unit that stores a map, and the map information generation program of the present invention is recorded so as to be readable by a computer included in the map information generation device that updates the map. This is a recording medium characterized by the above.

It is a block diagram for demonstrating the structure of the map information generation apparatus which concerns on 1st Embodiment of this invention. It is a block diagram for demonstrating the structure of the map information generation apparatus which concerns on 2nd Embodiment of this invention. It is a block diagram for demonstrating the structure of the navigation apparatus concerning 1st Example of this invention. It is a flowchart for demonstrating the update map production | generation process by the apparatus of FIG. It is a flowchart for demonstrating the registration process of the new road of FIG. It is a block diagram for demonstrating positioning of the server apparatus based on 2nd Example of this invention. It is a block diagram for demonstrating the structure of the navigation apparatus of FIG. It is a block diagram for demonstrating the structure of the server apparatus of FIG. It is a figure for demonstrating the content of the vehicle classification | category information in the memory | storage unit of FIG. It is a figure for demonstrating the content of the map information in the memory | storage unit of FIG. It is a flowchart for demonstrating the production | generation process and transmission process of additional registration candidate information by the apparatus of FIG. It is a flowchart for demonstrating the update map production | generation process by the apparatus of FIG. It is a flowchart for demonstrating the map update information delivery process by the apparatus of FIG.

100A ... Navigation device (map information generating device)
110A: Control unit (road information acquisition unit, environmental information acquisition unit,
Update map generator)
120A: Storage unit (storage unit)
300 ... Server device (map information generating device)
320 ... External communication unit (map information transmitter)
330 ... Control unit (road information acquisition unit, environmental information acquisition unit,
Update map generator)
700A, 700B ... Map information generation device 710A, 710B ... Storage unit 720 ... Road information acquisition unit 730 ... Environmental information acquisition unit 740A, 740B ... Update map generation unit 770 ... Transmission unit (map information transmission unit)

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the following description and drawings, the same or equivalent elements are denoted by the same reference numerals, and redundant description is omitted.

[First Embodiment]
First, a first embodiment of the present invention will be described with reference to FIG.

<Configuration>
FIG. 1 shows the configuration of a map information generating apparatus 700A according to the first embodiment. As shown in FIG. 1, it is arranged in the moving body MV.

  In the moving body MV, a position detection unit (PSD) 910, a new road detection unit (NRD) 920, and a road environment detection unit (RCD) 930 are arranged in addition to the map information generation device 700A. Further, a display control unit (DCT) 940A and a display unit (DSP) 950 are further arranged in the moving body MV.

  The position detection unit 910 includes a GPS (Global Positioning System) receiver and the like, and sequentially detects the position (current position) of the current position of the moving object MV. Then, the position detection unit 910 sends the detected current position to the new road detection unit 920 and the display control unit 940A.

  The new road detection unit 920 receives the current position sent from the position detection unit 910. Then, based on the current position, the new road detection unit 920 refers to the map information stored in the map information generation device 700A (more specifically, the storage unit 710A described later) and is included in the map. A road that is not open (hereinafter referred to as “new road”) is detected.

  Upon detecting such a new road, the new road detection unit 920 detects that the moving body has started moving at a point not included in the map in the storage unit 710A, and uses the start point as one end of the new road candidate. To do. Subsequently, when the moving body returns to the road included in the map in the storage unit 710A, the new road detection unit 920 sets the point returned to the road on the map as the other end of the new road candidate. When the distance between one end and the other end of the new road is equal to or greater than a predetermined distance, the new road candidate is detected as a new road.

  When a new road is detected in this way, the new road detection unit 920 uses, as road information related to the new road, trajectory information in which current positions received during movement from one end of the detected new road to the other end are arranged in time order. To the map information generating apparatus 700A. In addition, when the new road detection unit 920 detects one end of the new road candidate, the new road detection unit 920 sends an operation start command to the road environment detection unit 930. When the new road detection unit 920 detects the other end of the new road candidate, the new road detection unit 920 sends an operation end command to the road environment detection unit 930.

  When the road environment detection unit 930 receives the operation start command sent from the new road detection unit 920, the road environment detection unit 930 starts detecting environmental information of the road on which the moving body is moving. In the first embodiment, the environmental information is information related to the traffic volume of people and road sign information.

  When the road environment detection unit 930 receives the operation end command sent from the new road detection unit 920, the road environment detection unit 930 ends the detection of the environment information. The environmental information thus detected between the start of detection and the end of detection is sent from the road environment detection unit 930 to the map information generation device 700A at the end of detection.

  The display control unit 940A receives the current position sent from the position detection unit 910. Then, the display control unit 940A reads map information around the current position from the map information generation device 700A (more specifically, a storage unit 710A described later). Subsequently, the display control unit 940A creates display data for displaying a map around the current position based on the read map information. The display data created in this way is sent to the display unit 950.

  The display unit 950 receives display data sent from the display control unit 940A. Then, the display unit 950 performs map display according to the display data.

<< Configuration of Map Information Generating Device 700A >>
Next, the configuration of the map information generating apparatus 700A will be described.

  As illustrated in FIG. 1, the map information generation device 700A includes a storage unit (MEM) 710A, a road information acquisition unit (RIA) 720, and an environment information acquisition unit (CIA) 730. The map information generating apparatus 700A includes an updated map generating unit (UMG) 740A.

  The storage unit 710A stores various information used in the map information generation device 700A. Such information includes information on a map used for map display on the display unit 950. Such map information includes road shape data representing road shapes by links and nodes (intersections, etc.), background data representing buildings, rivers, ground surfaces (features), and the like.

  The updated map generation unit 740A is accessible to the storage unit 710A. In addition, the map information in the storage unit 710A can be read by the new road detection unit 920 and the display control unit 940A.

  Said road information acquisition part 720 receives the road information regarding the new road sent from the new road detection part 920. Then, the road information acquisition unit 720 acquires the road information, and sends the acquired road information to the update map generation unit 740A.

  The environment information acquisition unit 730 receives the environment information sent from the road environment detection unit 930. Then, the environment information acquisition unit 730 acquires the environment information, and sends the acquired environment information to the update map generation unit 740A.

  The update map generation unit 740A receives the road information sent from the road information acquisition unit 720 and the environment information sent from the environment information acquisition unit 730. Then, the update map generation unit 740A determines whether or not the new road has registration eligibility based on the environmental information. If the result of this determination is affirmative, the updated map generation unit 740A generates information on a new road based on the road information. Then, the update map generation unit 740A updates the map information in the storage unit 710A by adding the generated new road information to the map information in the storage unit 710A.

  Details of the operation of the update map generation unit 740A will be described later.

<Operation>
Next, the operation of the map information generation apparatus 700A configured as described above will be described mainly focusing on the operation of the update map generation unit 740A.

  It is assumed that the position detection unit 910 has started a position detection operation and sequentially sends the detected current position to the new road detection unit 920. In addition, the new road detection unit 920 starts a new road detection operation based on the current position detected by the position detection unit 910, and each time a new road is detected, the road information regarding the detected new road Are sent to the map information generating apparatus 700A. In addition, the road environment detection unit 930 has started an operation for detecting environmental information according to the operation control by the new road detection unit 920, and sends the detected environmental information of the new road to the map information generation device 700A. Shall.

  When the road information acquisition unit 720 receives the road information regarding the new road, the road information acquisition unit 720 acquires the road information. Then, the road information acquisition unit 720 sends the acquired road information to the update map generation unit 740A.

  When the environmental information acquisition unit 730 receives environmental information regarding a new road, the environmental information acquisition unit 730 acquires the environmental information. Then, the environment information acquisition unit 730 sends the acquired environment information to the update map generation unit 740A.

  When the road information and the environment information regarding the new road are received, the update map generation unit 740A starts an update map generation process. In the update map generation process, the update map generation unit 740A first determines whether or not the new road has registration ineligibility based on the environment information.

  In the determination of the registration ineligibility, the updated map generation unit 740A first determines the traffic volume of the person on the new road based on the information on the traffic volume of the person on the new road included in the environmental information. A traffic volume determination is made as to whether or not the threshold is exceeded. This kind of traffic determination is performed because a road with a large amount of traffic is not preferable because the traffic volume of the moving body increases from the viewpoint of traffic safety, and therefore the map displayed on the display unit 950 that provides road guidance. This is because it should be avoided. For this reason, if the result of the traffic volume determination is affirmative, the updated map generation unit 740A generates the updated map of this time without adding the information on the new road to the map information in the storage unit 710A. The process ends.

  If the result of the traffic volume determination described above is negative, the updated map generation unit 740A adds the new road to the map information in the storage unit 710A, using the road sign information included in the environment information. A sign determination is made as to whether or not the vehicle is ineligible (for example, “new road is a school road”). If the result of this sign determination is affirmative, the updated map generation unit 740A ends the current update map generation process without adding the new road information to the map information in the storage unit 710A. To do.

  If the result of the sign determination is negative, the updated map generation unit 740A determines that the new road should be added to the map in the storage unit 710A. Subsequently, the update map generation unit 740A generates road registration information based on the road information regarding the new road. Then, the update map generation unit 740A adds the generated road registration information to the map information in the storage unit 710A. Thus, when the map in the storage unit 710A is updated, the updated map generation unit 740A ends the current update map generation process.

  Thus, each time the road information and the environment information regarding the new road are received, the update map generation unit 740A performs the update map generation process described above, and appropriately updates the map in the storage unit 710A. Then, the display control unit 940A refers to the map information that has been updated as appropriate based on the current position of the mobile unit MV, and causes the display unit 950 to display a map around the current position of the mobile unit MV.

  As described above, in the map information generation apparatus 700A of the first embodiment, when a new road is detected, the road information acquisition unit 720 acquires road information regarding the new road, and the environment information acquisition unit 730 Obtain environmental information for new roads. Subsequently, the updated map generation unit 740A determines eligibility for additional registration of the new road on the map in the storage unit 710A based on the traffic volume, road signs, and the like included in the environmental information. Then, if it is determined by the determination of the eligibility that the new road is eligible for registration, the updated map generation unit 740A generates and generates road registration information related to the new road based on the road information. The road registration information is added to the map information in the storage unit 710A.

  Therefore, according to the first embodiment, when a new road is registered in the map used for presentation to the user, the registration of the road where the increase in the traffic volume of the mobile body is not preferable is rationally and efficiently performed. Can be excluded.

[Second Embodiment]
Next, a first embodiment of the present invention will be described with reference to FIG.

<Configuration>
FIG. 2 shows a configuration of a map information generation device 700B according to the second embodiment of the present invention. As shown in FIG. 2, the map information generation device 700 _</ b> B includes a terminal device (TEU) 800 _j arranged in a mobile unit (MB) MV _j (j = 1, 2,...) Via a network 850. Data communication can be performed.

In addition to the terminal device 800 _j , each mobile unit MV _j includes a position detection unit 910, a new road detection unit 920, and a road environment detection unit 930, as in the case of the mobile unit MV in the first embodiment described above. Has been placed. The new road detection unit 920 is different from the case of the first embodiment in that a new road is detected by referring to a map stored in a storage unit 810 included in the terminal device 800 _j described later.

Each of the terminal devices 800 _j includes a storage unit 810, a transmission unit 820, and a reception unit 830. Each of the terminal devices 800 _j includes a display control unit 940 </ b> B and a display unit 950.

The storage unit 810 stores various information used in the terminal device 800 _j . To such information, information of the map to be utilized in the map display on the display unit 950, and the version number of the map information (hereinafter, also referred to as "map version number"), and mobile width of the moving body MV _j Mobile object information including is included. Note that the map information includes road shape data, buildings, rivers, and ground surfaces that represent road shapes as links and nodes (intersections, etc.), as with the map information in the storage unit 710A in the first embodiment described above. Background data representing (feature) is included.

  The transmission unit 820 receives the road information sent from the new road detection unit 920 and the environment information sent from the road environment detection unit 930. And the transmission part 820 transmits the said road information and the said environment information to the map information generation apparatus 700B via the network 850 with mobile body information.

  The transmission unit 820 receives a map update information request sent from the display control unit 940B. And the transmission part 820 transmits the said map update information request | requirement to the map information generation apparatus 700B via the network 850 with mobile body information.

  In the following description, the road information, environment information, moving body information, and map update information request sent by the transmission unit 820 are collectively referred to as “terminal transmission data”.

  The reception unit 830 receives the map update information returned from the map information generation apparatus 700B via the network 850 as a response to the map update information request. Then, the receiving unit 830 sends the received map update information to the display control unit 940B.

  Similar to the case of the display control unit 940A in the first embodiment, the display control unit 940B stores information on the map around the current position based on the current position sent from the position detection unit 910. Read from. Then, the display control unit 940B creates display data for displaying a map around the current position based on the read map information, and uses the created display data as in the case of the first embodiment. The data is sent to the display unit 950 configured similarly.

Further, the display control unit 940B periodically (for example, once a day) requests the map update information specifying the mobile body information of the mobile body MV _j , the identification information of the terminal device 800 _j , and the map version number. Is sent to the transmission unit 820. Upon receiving the map update information sent from the receiving unit 830 as a response to the map update information request, the display control unit 940B adds the map update information to the map information in the storage unit 810, thereby storing the map update information in the storage unit 810. Update map information.

<< Configuration of Map Information Generating Device 700B >>
Next, the configuration of the map information generation apparatus 700B will be described.

  As shown in FIG. 2, the map information generation device 700B is different from the map information generation device 700A in the first embodiment in that it includes a storage unit 710B instead of the storage unit 710A, and an update map generation unit 740A. Instead, the update map generation unit 740B is provided, and the reception unit 760 and the transmission unit 770 are provided. Hereinafter, description will be made mainly focusing on these differences.

The storage unit 710B stores various information used in the map information generation device 700B. Such information includes information on a map that can be used for map display on each display unit 950 of the terminal device 800 _j . Such map information includes individual map information corresponding to each individual classification when the moving body width determined for each moving object is classified by a predetermined method. The storage unit 710B can be accessed by the updated map generation unit 740B.

  Note that the “predetermined method” is determined in advance based on simulation, experience, and the like from the viewpoint that it is possible to determine that the same road can be moved as long as the moving bodies belong to the same individual classification. Examples of such “predetermined methods” include methods classified into “ultra-small”, “small”, “medium” and “large”.

  The updated map generation unit 740 </ b> B receives the road information to which the moving body information is added and the environment information sent from the environment information acquisition unit 730 sent from the road information acquisition unit 720. And the update map production | generation part 740B performs the update map production | generation process regarding the map in the memory | storage part 710B corresponding to the separate classification | category to which the extracted mobile body width | variety extracts the mobile body width | variety from the said mobile body information.

  In addition, the update map generation unit 740B receives a map update information request in which request source identification information, mobile object information, and a map version number are specified, sent from the reception unit 760. Then, the update map generation unit 740B extracts the moving body width from the moving body information and then indicates the map version number from the map information corresponding to the individual classification to which the extracted moving body width belongs. Map update information after the version is read from the storage unit 710B. Subsequently, the update map generation unit 740B sends the read map update information and transmission destination identification information specifying the terminal device specified by the request source identification information as a transmission destination to the transmission unit 770.

  Details of the operation of the update map generation unit 740B will be described later.

The reception unit 760 receives the road information and the environment information to which the moving body information is added transmitted from each of the terminal devices 800 _j via the network 850. Then, the reception unit 760 sends the road information to the road information acquisition unit 720. In addition, the reception unit 760 sends the environment information to the environment information acquisition unit 730.

The receiving unit 760 has been transmitted from the respective terminal devices 800 _j, request source identification information, the mobile body information and the map update information request map version number is specified, it received via the network 850. Then, the receiving unit 760 sends the map update information request to the updated map generating unit 740B.

  The transmission unit 770 receives the map update information and the transmission destination identification information transmitted from the update map generation unit 740B. Then, the transmission unit 770 transmits the map update information to the terminal device specified by the transmission destination identification information via the network 850.

<Operation>
Next, the operation of the map information generation device 700B configured as described above will be described mainly focusing on the update map generation process and the map update information distribution process by the update map generation unit 740B.

The moving body MV _1, ... of the terminal apparatus 800 _k in a mobile MV _k is at least one, the position detection unit 910, the new road detecting unit 920 and, as the road environment detection unit 930, which starts operating And Then, each time a new road is detected by the new road detection unit 920, road information and environmental information relating to the new road, together with mobile information via the network 850, from the terminal apparatus 800 _k to the map information generating device 700B Suppose that it is sent. Further, it is assumed that a map update information request in which the mobile object information, the identification information of the terminal device 800 _k , and the map version number are periodically sent from the terminal device 800 _k to the map information generating device 700B. .

《Update map generation processing》
First, the update map generation process will be described.

When receiving the road information and the environment information sent from the terminal device 800 _k together with the moving body information, the receiving unit 760 sends the road information to which the moving body information is added to the road information acquiring unit 720 and transmits the environmental information to the environment. Send to information acquisition unit 730

  The road information acquisition unit 720 that has received the road information to which the moving body information is added acquires the information and sends the acquired information to the update map generation unit 740B. The environment information acquisition unit 730 that has received the environment information acquires the information and sends the acquired information to the update map generation unit 740B.

  When the road information and the environment information to which the moving body information is added are thus received, the update map generation unit 740B starts an update map generation process. In the update map generation process, the update map generation unit 740B first specifies a map corresponding to the individual classification to which the mobile body width specified by the mobile body information belongs.

  Subsequently, the updated map generation unit 740B determines whether or not the road corresponding to the road information has been acquired corresponding to the specified map. If the result of the acquired determination is affirmative, the updated map generation unit 740B adds the information of the road to the information of the specified map in the storage unit 710B, and updates the current map. The generation process ends.

  Next, the update map generation unit 740B performs the determination of registration ineligibility (the above-described traffic volume determination and sign determination) based on the environment information in the same manner as the update map generation unit 740A described above. And when the result of determination of registration ineligibility is affirmative (that is, when the result of either the traffic determination or the sign determination is affirmative), the updated map generation unit 740B stores The updated map generation process of this time is terminated without adding the information of the road to the information of the specified map in the unit 710B.

  On the other hand, when the result of the determination of registration ineligibility is negative (that is, when the results of both traffic determination and sign determination are negative), the updated map generation unit 740B Is a new road having registration eligibility and should be added to the specified map in the storage unit 710B. Subsequently, the updated map generation unit 740B generates road registration information based on the road information regarding the new road. Then, the updated map generation unit 740B adds the generated road registration information to the specified map information in the storage unit 710B. Thus, when the map in the storage unit 710B is updated, the updated map generation unit 740B ends the current update map generation process.

  Thus, every time the road information and the environment information are received together with the moving body information, the update map generation unit 740B performs the update map generation process described above, and appropriately updates the map in the storage unit 710B.

《Map update information distribution processing》
Next, map update information distribution processing will be described.

When receiving the map update information request sent from the terminal device 800 _k , the receiving unit 760 sends the map update information request to the update map generating unit 740B. When the map update information request is received in this way, the update map generation unit 740B starts the map update information distribution process.

  In the map update information distribution process, the update map generation unit 740B first specifies a map corresponding to the individual classification to which the mobile body width specified by the mobile body information belongs. Subsequently, the updated map generation unit 740B reads, from the storage unit 710B, map update information after the version indicated by the map version number specified in the map update information request from the specified map information. Next, the update map generation unit 740B transmits the read map update information and transmission destination identification information that specifies the terminal device specified by the request source identification information specified in the map update information request as the transmission destination. Part 770.

Thus whenever receiving the map update information request, updating the map generating unit 740B performs the above-mentioned map update information distribution process, the moving body width of the moving body MV _k to terminal apparatus 800 _k which has issued the map update information request is placed The latest map information corresponding to is distributed to the terminal device 800 _k .

In the terminal device 800 _k that has received the map update information, the display control unit 940 </ b> B updates the map information in the storage unit 810 by adding the map update information to the map information in the storage unit 810. Then, the display control unit 940B is based on the current position of the moving body MV _k, the information in the map which is appropriately updated, and displays the map around the current position of the moving body MV _k on the display unit 950.

As described above, in the map information generation device 700B of the second embodiment, the road information acquisition unit 720 acquires the road information of the new road candidate sent from the terminal device 800 _k arranged in the mobile body MV _k. At the same time, the environmental information acquisition unit 730 acquires the environmental information of the new road candidate sent from the terminal device 800 _k . Subsequently, the updated map generation unit 740B refers to the map information in the storage unit 710B, and determines whether or not the road is a new road based on the road information.

  If the result of the new road determination is affirmative, the updated map generation unit 740B uses the traffic amount, road sign, etc. included in the environmental information to map the new road to the map in the storage unit 710B. Determine eligibility for additional registration. Then, if it is determined by the determination of the eligibility that the new road is eligible for registration, the updated map generation unit 740B generates and generates road registration information related to the new road based on the road information. The registered road registration information is added to the map information in the storage unit 710B.

  Therefore, according to the second embodiment, as in the case of the first embodiment, when a new road is additionally registered in a map used for presentation to the user, an increase in the traffic volume of the moving body is not preferable. Road registration can be reasonably and efficiently excluded.

  In the second embodiment, the storage unit 710B stores map information for each moving body width range classified according to a predetermined reference, and the road information acquisition unit 720 includes a moving body of the moving body. Further, mobile body information whose width can be specified is acquired. And the update map production | generation part 740B updates the map in the memory | storage part 710B corresponding to the mobile body width specified by mobile body information.

  For this reason, according to 2nd Embodiment, according to the mobile body width | variety of a mobile body, only the road which the said mobile body can pass can be additionally registered appropriately.

In the second embodiment, when a map update information request sent from the terminal device 800 _{k is} received, the map information generation device 700B updates the map in the storage unit 810 in the terminal device 800 _k to be the latest. The information is distributed to the terminal device 800 _k . For this reason, the terminal device 800 _{k can} easily acquire the latest map and perform map display using the acquired latest map.

[Modification of Embodiment]
The present invention is not limited to the above-described embodiment, and various modifications are possible.

  For example, in the first and second embodiments described above, human traffic information and road sign information are adopted as environment information. May be added to the environmental information.

  Moreover, in said 1st and 2nd embodiment, although the presentation of the map information to the user was performed by the map display, the presentation by the voice guidance may be performed together.

  In the second embodiment, the moving body information includes the moving body width. However, the moving body information further includes at least one of the moving body length and the moving body height. In the storage unit, map information may be stored for each shape of a two-dimensional or three-dimensional moving body, and each may be set as an update target.

In the second embodiment, the terminal device 800 _k periodically issues map update information. However, the map update information may be issued in accordance with an explicit instruction from the user. .

  The elements other than the storage unit of the map information generation device of the above embodiment are configured as a computer device including a computer as a calculation unit, and the functions of the elements are realized by executing a program. be able to. These programs may be acquired in a form recorded on a portable recording medium such as a CD-ROM or DVD, or may be acquired in a form distributed via a network such as the Internet. Can do.

  Embodiments of the present invention will be described below with reference to the drawings. In the following description and drawings, the same or equivalent elements are denoted by the same reference numerals, and redundant description is omitted.

[First embodiment]
First, a navigation device including the function of the map information generation device 700A of the first embodiment described above will be described as a first example with reference to FIGS.

<Configuration>
FIG. 3 schematically shows the configuration of the navigation device 100A according to the first embodiment. As shown in FIG. 3, the navigation device 100A is arranged in a vehicle CR and moves together with the vehicle CR.

  The navigation device 100A includes a control unit 110A, a storage unit 120A, a sound output unit 130, and a display unit 140. The navigation device 100 </ b> A includes an input unit 150, a sensor unit 160, a GPS receiving unit 170, and a photographing unit 180.

  The control unit 110A performs overall control of the entire navigation device 100A. The control unit 110A will be described later.

  The storage unit 120A includes a nonvolatile storage device such as a hard disk device, and stores various information data used in the navigation device 100A. Such information data includes map information MPA and the like. The storage unit 120A can be accessed by the control unit 110A. That is, the storage unit 120A functions as the storage unit 710A in the first embodiment described above.

  The sound output unit 130 includes a speaker and outputs sound corresponding to the sound data sent from the control unit 110A. This sound output unit 130 outputs guidance voices such as the traveling direction of the vehicle CR, the traveling situation, and the traffic situation regarding the navigation processing under the control of the control unit 110A.

  The display unit 140 includes a display device such as a liquid crystal panel, and displays an image corresponding to the display data sent from the control unit 110A. This display unit 140 displays images such as map information and route information, guidance information, and the like during navigation processing under the control of the control unit 110A. That is, the display unit 140 functions as the display unit 950 in the first embodiment described above.

  The input unit 150 includes a key unit provided in the main body of the navigation device 100A and / or a remote input device including the key unit. Here, as a key part provided in the main body part, a touch panel provided in a display device of the display unit 140 can be used. In addition, it can replace with the structure which has a key part, or can also employ | adopt the structure input with a sound using a voice recognition technique in combination.

  When the user operates the input unit 150, setting of operation contents and operation commands of the navigation device 100A are performed. For example, the user performs a route search command specifying a destination, a map display command around the current value, and the like using the input unit 150.

  The sensor unit 160 includes a vehicle speed sensor, an acceleration sensor, an angular velocity sensor, a tilt sensor, and the like. Detection results from various sensors included in the sensor unit 160 are sent as sensor data to the control unit 110A. In addition, the sensor unit 160 fulfill | performs a part of function of the position detection part 910 in 1st Embodiment mentioned above.

  The GPS receiving unit 170 described above calculates the current position of the vehicle CR based on reception results of radio waves from a plurality of GPS satellites. Further, the GPS receiving unit 170 measures the current time based on the date / time information transmitted from the GPS satellite. Information on these current position and current time is sent to the control unit 110A as GPS data. Note that the GPS receiving unit 170 performs a part of the function of the position detection unit 910 in the first embodiment described above.

  The photographing unit 180 includes a photographing device such as a camera. The photographing unit 180 photographs the vicinity of the vehicle CR under the control of the control unit 110A. The result of photographing by the photographing unit 180 is sent to the control unit 110A as image data. Note that the photographing unit 180 fulfills a part of the function of the road environment detection unit 930 in the first embodiment described above.

  Next, the control unit 110A described above will be described. The control unit 110A includes a central processing unit (CPU) and its peripheral circuits. Various functions as the navigation device 100A are realized by the control unit 110A executing various programs.

  The program executed by the control unit 110A is recorded on a computer-readable recording medium such as a hard disk, CD-ROM, or DVD, and is loaded from the recording medium and executed. The program may be acquired in a form recorded on a portable recording medium such as a CD-ROM or DVD, or may be acquired in a form distributed via a network such as the Internet. Also good.

  The control unit 110A appropriately refers to the map information in the storage unit 120A based on the sensor data sent from the sensor unit 160 and the GPS data received from the GPS receiving unit 170, and provides navigation information to the user. Process. The navigation information providing process includes (i) a map display for displaying a map of an area designated by the user on the display device of the display unit 140, (ii) where the vehicle CR is located on the map, , Map matching to calculate which direction it is going, (iii) calculation of estimated arrival time when driving to the destination along the set route, (iv) direction to travel, etc. Control for displaying guidance guidance on the display device of the display unit 140 and control for outputting voice for guidance guidance from the speaker of the sound output unit 130, etc. It is. In other words, the control unit 110A functions as a part of the position detection unit 910 and the display control unit 940A in the first embodiment described above.

  In addition, the control unit 110A functions as the new road detection unit 920, a part of the road environment detection unit 930, the road information acquisition unit 720, the environment information acquisition unit 730, and the update map generation unit 740A in the first embodiment described above. It is like that. The operation of the control unit 110A when performing this function will be described later.

  In addition, when the control unit 110A travels, the distance between the position obtained based on the sensor data and the GPS data and the road on the map currently stored in the storage unit 120A is equal to or greater than the first predetermined distance. Then, it is determined that the vehicle has deviated from the road registered in the map and has started traveling on the new road candidate. Thereafter, when the distance between the position obtained as a result of the map matching described above and the road in the map currently stored in the storage unit 120A is less than the first predetermined distance, the control unit 110A displays the map. Returning to the registered road, it is determined that the travel on the new road candidate has been completed.

  Here, the “first predetermined distance” is determined in advance based on experiments, simulations, experiences, and the like in consideration of the position specifying accuracy by map matching from the viewpoint of efficient detection of new road candidates.

<Operation>
Next, the operation of the navigation device 100A configured as described above will be described by focusing on the update map generation process.

  In the updated map generation process, as shown in FIG. 4, first, in step S11, the control unit 110A determines whether or not the vehicle CR has deviated from the road included in the map information MPA stored in the storage unit 120A. judge. If the result of this determination is negative (step S11: N), the process of step S11 is repeated.

  If the result of determination in step S11 is affirmative (step S11: Y), control unit 110A determines that vehicle CR has started traveling on a new road candidate. Then, the process proceeds to step S12. In step S <b> 12, the control unit 110 </ b> A issues a shooting start command to the shooting unit 180. As a result, the photographing unit 180 starts photographing operation around the vehicle CR.

  Next, in step S13, the control unit 110A collects environmental information of the current position and the new road candidate. When collecting such environmental information, the control unit 110A first acquires the shooting data sent from the shooting unit 180. Subsequently, the control unit 110A analyzes the shooting data and extracts people around the vehicle CR and road signs.

  Next, the control unit 110A counts the number of extracted people. Subsequently, the control unit 110A determines whether or not the count result is the maximum value of the count results during the traveling of the new road candidate so far. When the result of the count value determination is affirmative, the control unit 110A sets the count result as the maximum count value. On the other hand, when the result of the count value determination is negative, the control unit 110A maintains the count maximum value so far.

  Next, the control unit 110 </ b> A recognizes the environment information of the vehicle traveling indicated by the extracted road sign. Subsequently, the control unit 110A determines whether or not the content of the recognition result is included in the road sign information of the current new road candidate while traveling so far. If the result of the overlap recognition determination is affirmative, the recognition result is not added to the road sign information, and the process of step S13 is terminated.

  On the other hand, if the result of the overlap recognition determination is affirmative, the recognition result is added to the road sign information. And the process of step S13 is complete | finished.

  When the process of step S13 ends, in step S14, the control unit 110A determines whether or not the vehicle CR has returned to the road included in the map information MPA stored in the storage unit 120A. If the result of this determination is negative (step S14: N), the process returns to step S13. And the process of step S13, S14 is repeated until the result of determination in step S14 becomes affirmative.

  If the result of the determination in step S14 is affirmative (step S14: Y), the process proceeds to step S15. In step S <b> 15, the control unit 110 </ b> A issues a shooting end command to the shooting unit 180. As a result, the photographing unit 180 ends the photographing operation.

  Next, in step S16, whether or not the control unit 110A has traveled on the new road by determining whether or not the distance between the start position and the end position of the current new road candidate is equal to or greater than the second predetermined distance. Determine whether. The “second predetermined distance” is determined in advance based on experiments, simulations, experiences, and the like from the viewpoint of accurately determining whether a new road candidate is a new road.

  If the result of the determination in step S16 is negative (step S16: N), the process returns to step S11. On the other hand, when the result of the determination in step S16 is affirmative (step S16: Y), the process proceeds to step S17.

  In step S <b> 17, the control unit 110 </ b> A performs a new road registration process based on the current position and environment information collected for the new road. The new road registration process will be described later.

  When the new road registration process in step S17 ends, the process returns to step S11. Thereafter, the process of steps S11 to S17 is repeated, and a new road registration process is performed each time a new road is detected. Then, the control unit 110A refers to the map information MPA updated as appropriate, searches for a travel route to the destination, and displays a map around the current position of the vehicle CR based on the current position of the vehicle CR. The guidance guidance information such as display on the unit 140 is presented to the user.

(New road registration process)
Next, the new road registration process in step S17 will be described.

  In the new road registration process, as shown in FIG. 5, first, in step S21, the control unit 110A determines whether or not the maximum count value collected for this new road is equal to or greater than a predetermined threshold value. To determine whether the road is busy. By making such a determination, the control unit 110A has many traffic environments having a road environment in which it is not preferable that the current new road is additionally registered in the map information MPA in the storage unit 120A from the viewpoint of traffic safety. Determine if the road.

  The “predetermined threshold value” is determined in advance based on experiments, simulations, experiences, and the like from the viewpoint of maintaining traffic safety.

  If the result of the determination in step S21 is affirmative (step S21: Y), the control unit 110A ends the process of step S17 without additionally registering the current new road in the map information MPA. And a process returns to step S11 of FIG. 4 mentioned above.

  If the result of the determination in step S21 is negative (step S21: N), the process proceeds to step S22. In this step S22, whether or not the road sign information collected for the new road this time includes registration ineligibility information that is not preferable to be additionally registered in the map information MPA in the storage unit 120A from the viewpoint of traffic safety. Determine whether. In the first embodiment, the collected road sign information includes information that indicates “commuting road”, information that indicates “bicycle road”, information that indicates “pedestrian road”, It is determined whether or not information indicating that the road is “bicycle and pedestrian road” is included.

  If the determination result in step S22 is affirmative (step S22: Y), the control unit 110A ends the process of step S17 without additionally registering the new road of this time in the map information MPA. Then, the process returns to step S11 in FIG.

  If the result of the determination in step S22 is negative (step S22: N), the control unit 110A indicates that the new road this time does not contain registration ineligibility information that is not preferable to be additionally registered. to decide. Then, the process proceeds to step S23.

  In step S23, the control unit 110A creates additional registration information including trajectory information of the new road based on the current position collected for the current new road. Then, the control unit 110A additionally registers the created additional registration information in the map information MPA in the storage unit 120A.

  When the process of step S23 ends, the process of step S17 ends. Then, the process returns to step S11 in FIG.

  As described above, in the first embodiment, the control unit 110A performs road information related to the new road and environmental information of the new road for determining registration eligibility in parallel with the detection operation of the new road. To collect. Subsequently, the control unit 110A determines eligibility for additional registration of the new road based on the traffic volume, road signs, and the like included in the environmental information. Then, if it is determined by the determination of the eligibility that the new road is eligible for registration, the control unit 110A generates road registration information related to the new road based on the road information, and the generated road The registration information is additionally registered in the map information MPA in the storage unit 120A.

  Therefore, according to the first embodiment, when a new road is registered in a map used for presentation to the user, registration of a road where an increase in vehicle traffic is not preferable is rationally and efficiently performed. Can be excluded.

[Second Embodiment]
First, a server apparatus including the function of the map information generation apparatus 700B of the second embodiment described above will be described as a second example with reference to FIGS.

<Configuration>
FIG. 6 shows the positioning of the server device 300 according to the second embodiment. As shown in FIG. 6, the server device 300 is arranged at a fixed position, and via a network 500 and a navigation device 100B _j arranged in each of the vehicles CR _j (j = 1, 2,...). Data communication can be performed. The contents of communication between the navigation device 100B _j and the server device 300 will be described later.

Here, as shown in FIG. 7, each of the navigation devices 100B _j is provided with a control unit 110B instead of the control unit 110A as compared with the navigation device 100A of the first embodiment, and instead of the storage unit 120A. The difference is that the storage unit 120B is provided and the wireless communication unit 190 is further provided.

Compared with the storage unit 120A described above, the storage unit 120B stores map information MPT _j and vehicle information CRI _j instead of the map information MPA. Here, the map version number is included in the map information MPT _j . The vehicle information CRI _j includes vehicle width information of the vehicle CR _j , and the map information MPT _j is map information corresponding to the vehicle width information of the vehicle CR _j .

  That is, the storage unit 120B performs the function of the storage unit 810 in the second embodiment described above.

Additional control unit 110B is different from the control unit 110A described above, without performing the registration process of new road for the navigation device 100B _j, the road information and environmental information relating to the road, with the vehicle information CRI _j, the wireless communication The point of sending to the unit 190 is different. Further, the control unit 110B is different from the control unit 110A, (i) periodically (e.g., once / day), vehicle information CRI _j of the vehicle CR _j, the identification information of the navigation device 100B _j, and map information When a map update information request specifying the map version number of MPT _j is sent to the wireless communication unit 190, and (ii) when the map update information sent from the wireless communication unit 190 as a response to the map update information request is received, The difference is that the map update information is added to the map information MPT _j in the storage unit 120B. That is, the control unit 110B functions as a part of the position detection unit 910, a new road detection unit 920, a part of the road environment detection unit 930, and the display control unit 940B in the second embodiment described above. ing.

The wireless communication unit 190 performs communication with the server device 300 via the network 500 under the control of the control unit 110B. The wireless communication unit 190 transmits a set of road information, environment information, and vehicle information CRI _j (hereinafter referred to as “additional registration candidate information”) sent from the control unit 110B to the server apparatus 300 via the network 500. To do.

  Further, the wireless communication unit 190 transmits the map update information request sent from the control unit 110B to the server device 300 via the network 500 as terminal transmission data. Furthermore, the wireless communication unit 190 sends the map update information transmitted from the server device 300 to the control unit 110B via the network 500.

  That is, the wireless communication unit 190 performs the functions of the transmission unit 820 and the reception unit 830 in the second embodiment described above.

(Configuration of server apparatus 300)
Next, the configuration of the server device 300 will be described.

  FIG. 8 shows the configuration of the server apparatus 300. As shown in FIG. 8, the server device 300 includes a storage unit 310, an external communication unit 320, and a control unit 330.

  The storage unit 310 includes a hard disk device that is a nonvolatile storage device. The storage unit 310 stores various information data used for the operation of the server device 300. This information data includes vehicle classification information CCI and map information MPB.

  The contents of the vehicle classification information CCI and the map information MPB will be described later.

Additional external communication unit 320 receives the additional registration candidate information transmitted via the network 500 from each of the navigation device 100B _j. Then, the external communication unit 320 sends the additional registration candidate information to the control unit 330.

Further, external communication unit 320 receives the map update information request transmitted via the network 500 from each of the navigation device 100B _j. Then, the external communication unit 320 sends the map update information request to the control unit 330.

  Further, the external communication unit 320 receives the map update information designated by the transmission destination sent from the control unit 330. Then, the external communication unit 320 transmits the map update information to the designated transmission destination via the network 500.

  In other words, the external communication unit 320 performs the functions of the receiving unit 760 and the transmitting unit 770 described above.

  The control unit 330 performs overall control of the entire server device 300. The control unit 330 includes a central processing unit (CPU) and its peripheral circuits. Various functions are realized by the control unit 330 executing various programs. These functions include the functions of the road information acquisition unit 720, the environment information acquisition unit 730, and the update map generation unit 740B in the second embodiment described above. The operation of the control unit 330 when performing this function will be described later.

  The program executed by the control unit 330 is recorded on a computer-readable recording medium such as a hard disk, CD-ROM, or DVD, and is loaded from the recording medium and executed. The program may be acquired in a form recorded on a portable recording medium such as a CD-ROM or DVD, or may be acquired in a form distributed via a network such as the Internet. Also good.

(Contents of vehicle classification information CCI)
Next, the contents of the vehicle classification information CCI described above will be described.

  In the vehicle classification information CCI, as shown in FIG. 9, the vehicle width is associated with the individual classification (classification #p (p = 1, 2,...)) To which the vehicle having the vehicle width belongs. The vehicle classification based on the vehicle width is determined in advance based on simulations, experiences, and the like from the viewpoint that it can be determined that vehicles belonging to the same individual classification can move on the same road. In the second embodiment, individual classifications of “ultra-small”, “small”, “medium” and “large” are adopted.

(Contents of map information MPB)
Next, the contents of the map information MPB described above will be described.

  As shown in FIG. 10, the map information MPB includes distribution information and update information. The distribution information includes distribution information for each classification #p. The distribution information for each classification #p includes registration information for each version number.

  Here, the registration information corresponding to the version V0 is original information which is the original map information. Also, the registration information corresponding to version V1 and later is update information from the previous version.

  In addition, the update information includes update information for each classification #p. The update information is information on roads that have not been promoted to distribution information. Such update information is promoted to new version distribution information periodically (for example, once / day). The promotion of the update information to the distribution information is performed by the control unit 330.

<Operation>
Next, description will be given mainly focusing on the update map generation process and the map update information distribution process by the server device 300 configured as described above.

The vehicle CR _1, ... navigation device 100B _k in at least one vehicle CR _k of is assumed to start the operation. That is, as shown in FIG. 11, the control unit 110 </ b> B in the navigation device 100 _</ b> B _k performs the same processing as steps S <b> 11 to S <b> 16 shown in FIG. 4 described above in steps S <b> 31 to S <b> 36. When it is determined that the vehicle has traveled a new road for the navigation device 100B _k In step S36, in step S37, the control unit 110B has the additional registered candidate information via the wireless communication unit 190 and network 500, Assume that the message is sent to the server apparatus 300. Further, the control unit 110B periodically sends a map update information request in which the vehicle information CRI _k , the identification information of the navigation device 100B _k and the map version number are designated via the wireless communication unit 190 and the network 500, to the server device Suppose that it is sent to 300.

《Update map generation processing》
First, the update map generation process will be described.

In such update map generation process, as shown in FIG. 12, first, in step S41, determines the control unit 330, whether the newly received additional registration candidate information sent from the navigation device 100B _k. If the result of the determination in step S41 is negative (step S41: N), the process of step S41 is repeated.

When new additional registration candidate information is received and the result of determination in step S41 is affirmative (step S41: Y), the process proceeds to step S42. In step S42, the control unit 330, first, based on the vehicle information CRI _k included in the additional registration candidate information, the vehicle width of the vehicle CR _k to identify the individual classification belonging.

  Subsequently, the control unit 330 refers to the distribution information and update information corresponding to the identified individual classification, and determines whether or not the road corresponding to the road information in the new additional registration information has already been acquired. judge. If the result of the determination in step S42 is affirmative (step S42: Y), the process returns to step S41.

  If the result of the determination in step S42 is negative (step S42: N), the control unit 330 determines that the road corresponding to the new additional registration information is a new road. Then, the process proceeds to step S43.

  In step S43, the control unit 330 performs the same process as the process performed by the control unit 110A in step S21 described above, and determines whether or not the current new road is a busy road. If the result of the determination in step S43 is affirmative (step S43: Y), the process returns to step S41.

  If the result of the determination in step S43 is negative (step S43: N), the process proceeds to step S44. In this step S44, the control unit 330 performs the same process as the process by the control unit 110A in the above-described step S22, and the road sign information collected for this new road is ineligible for registration from the viewpoint of traffic safety. It is determined whether or not information is included.

  If the result of the determination in step S44 is affirmative (step S44: Y), the process returns to step S41. On the other hand, when the result of the determination in step S44 is negative (step S44: N), the control unit 330 determines that the current new road is a new road that is eligible for registration. Then, the process proceeds to step S45.

  In step S45, the control unit 330 generates road registration information based on the road information regarding the new road this time. Then, the control unit 330 performs temporary registration for adding the generated road registration information to the update information corresponding to the individual classification specified in step S42 described above. Thereafter, the process returns to step S41.

  Note that, as described above, the control unit 330 performs regular registration to periodically upgrade the update information to new version distribution information. At this time, the control unit 330 clears the content of the update information.

  Thus, each time additional registration information is received, the control unit 330 performs the update map generation process described above, and updates the map information in the storage unit 310 as appropriate.

《Map update information distribution processing》
Next, map update information distribution processing will be described.

In such map update information distribution process, as shown in FIG. 13, first, in step S51, determines the control unit 330, whether the newly received the transmitted map update information request from the navigation device 100B _k . If the result of the determination in step S51 is negative (step S51: N), the process of step S51 is repeated.

When a new map update information request is received and the result of determination in step S51 is affirmative (step S51: Y), the process proceeds to step S52. In step S52, the control unit 330, first, based on the vehicle information CRI _k included in the additional registration candidate information, the vehicle width of the vehicle CR _k to identify the individual classification belonging. Subsequently, the control unit 330 extracts update information after the version indicated by the map version number specified in the map update information request from the distribution information corresponding to the specified individual classification as map update information. .

Next, in step S53, the control unit 330, the extracted map update information, and transmission destination specifying the navigation device 100B _k specified by the request source identification information specified in the map update information request as the destination The identification information is sent to the external communication unit 320. As a result, the external communication unit 320, the map update information, with the latest map version number at that time, via a network 500, are transmitted to the navigation apparatus 100B _k which has issued the map update information request.

As described above, each time receiving the map update information request, the control unit 330 performs the above-mentioned map update information distribution processing, auto vehicle CR _k to the navigation device 100B _k is arranged which has issued the map update information request the map information corresponding to the width, to deliver to the navigation device 100B _k.

The navigation device 100B _k receives the map update information, the control unit 110B is, by adding the map update information in the map information MPT _j storage unit 120B, and updates the map information MPT _j of the storage unit 120B. Then, the control unit 110B has, with reference to the map information MPT _j being appropriately updated, the search for the travel route to the destination, and, based on the current position of the vehicle CR _k, around the current position of the vehicle CR _k The guidance guidance information such as display on the map display unit 140 is presented to the user.

As described above, in the second embodiment, which is transmitted from the navigation device 100B _k located on the vehicle CR _k, the additional registration information including road information and environmental information of the new road candidates, control of the server device 300 The unit 330 acquires. Subsequently, the control unit 330 determines whether or not the road is a new road based on the road information while referring to the map information MPB in the storage unit 310.

  If the result of the new road determination is affirmative, the control unit 330 is eligible for additional registration in the map information MPB in the storage unit 310 based on the traffic volume, road signs, etc. included in the environmental information. Determine sex. Then, if it is determined by the determination of the eligibility that the new road is eligible for registration, the control unit 330 generates road registration information related to the new road based on the road information, and the generated road The registration information is added to the map information MPB in the storage unit 310.

  Therefore, according to the second embodiment, as in the case of the first embodiment, when a new road is additionally registered in a map used for presentation to the user, an increase in the traffic volume of the vehicle is not preferable. Road registration can be reasonably and efficiently excluded.

In the second embodiment, in the storage unit 310, together with the map information is stored for each classified vehicle width range in a predetermined reference, the additional registration information, the vehicle width of the vehicle CR _k vehicle information CRI _k capable of specifying a has to be further included. Then, the control unit 330 updates the map information in the storage unit 310 corresponding to the vehicle width specified by the vehicle information CRI _k .

  For this reason, according to the second embodiment, it is possible to appropriately additionally register only roads that can pass in accordance with the vehicle width.

In the second embodiment, when a map update information request sent from the navigation device 100B _{k is} received, the map update information for updating the map information MPT _k in the storage unit 120B in the navigation device 100B _k is updated to the server. device 300 is distributed to the navigation device 100B _k. Therefore, the navigation device 100Bk _can easily acquire the latest map and perform map display using the acquired latest map.

[Modification of Example]
The present invention is not limited to the above-described embodiments, and various modifications can be made.

  For example, in the first and second embodiments described above, human traffic information and road sign information have been adopted as environmental information. Information may be added to the environmental information.

  In the first and second embodiments, the surrounding image is analyzed to detect information on the amount of traffic of the person. On the other hand, you may make it detect the information of a person's traffic using a human sensitive sensor.

  In the second embodiment, the vehicle information includes the vehicle width. However, the vehicle information further includes at least one of the vehicle length and the vehicle height, and the storage unit in the server device includes Map information may be stored for each two-dimensional or three-dimensional moving body shape, and each may be used as an update target.

  In the second embodiment, the navigation apparatus periodically issues a map update information request. However, the map update information request is issued in accordance with an explicit command input by the user input to the input unit. You may do it.

  Further, in the second embodiment, the navigation device arranged in the vehicle detects a new road candidate and collects road information and environmental information of the new road candidate. On the other hand, the navigation device arranged in the vehicle sends the current position and photographing data to the server device, and the server device also detects new road candidates and collects road information and environmental information of the new road candidates. It may be.

  In the second embodiment, the server device performs version management of map update information, and the update information and the latest map after the map information version stored in the navigation device that issued the map update information request. The version number was returned as a response to the map update information request. On the other hand, when a map update information request is received, the server device may return the latest entire map information as a response to the map update information request.

  In the second embodiment, the newness of the map information is determined based on the map version number. However, the main registration date and time in the distribution information may be used instead of the map version number.

According to a first aspect of the present invention, a storage unit that stores a map; and road information acquisition that acquires road information about the road when a moving body moves on a road that is not included in the map in the storage unit. Based on the road information acquired from the road information acquisition unit, the environmental information acquired by the environmental information acquisition unit, and the map, An updated map generating unit that generates an updated map in which the road is added to the map, and the updated map generating unit includes information related to a person's traffic on the road in the environment information, and A first condition that the amount of traffic is greater than or equal to a threshold, and information on a road sign indicating the attribute of the road is included in the environment information, and the road sign adds the road to the map in the storage unit To do When at least one condition of the second condition as indicating incompetence is satisfied that, do not add the road map in the storage unit, it is the map information generating device according to claim.

According to a second aspect of the present invention, a storage unit that stores a map; a road information acquisition unit that acquires road information related to a road that is not included in the map in the storage unit from a moving body that has moved the road; An environmental information acquisition unit that acquires environmental information of the road from the mobile body; the road information acquired from the road information acquisition unit; the environmental information acquired by the environmental information acquisition unit; and the map An updated map generating unit that generates an updated map in which the road is added to the map, and the updated map generating unit includes information related to the traffic volume of the person on the road in the environment information, And the 1st condition that the amount of traffic is more than a threshold, and the information of the road sign which shows the attribute of the road is included in the environment information, and the road sign is the map in the storage part On the road When at least one condition of the second condition as indicating incompetence relates to pressure is satisfied, not add the road map in the storage unit, it in the map information generating device according to claim is there.

From a third point of view, the present invention is a map information generation method used in a map information generation apparatus that includes a storage unit that stores a map and updates the map, and is included in the map in the storage unit. A road information acquisition step of acquiring road information relating to the road when a moving body moves on a non-road; an environment information acquisition step of acquiring environmental information of the road; and the acquired in the road information acquisition step An update map generation step of generating an update map in which the road is added to the map based on the road information, the environment information acquired in the environment information acquisition step, and the map, and the update the map generation process, wherein the environment information includes information about the traffic amount of human in the road, and the first condition and the traffic amount is equal to or greater than the threshold, and, prior to said environment information At least one condition of the second condition that information of a road sign indicating a road attribute is included and the road sign indicates ineligibility regarding adding the road to the map in the storage unit In the map information generation method, the road is not added to the map in the storage unit when is satisfied .

Claims (10)

A storage unit for storing a map;
A road information acquisition unit that acquires road information about the road when a moving body moves on a road that is not included in the map in the storage unit;
An environmental information acquisition unit for acquiring environmental information of the road;
Update map generation for generating an updated map in which the road is added to the map based on the road information acquired from the road information acquisition unit, the environmental information acquired by the environmental information acquisition unit, and the map And comprising;
The updated map generation unit adds the road to the map in the storage unit when the environment of the road reflected in the environment information satisfies a predetermined condition.
A map information generating device characterized by that. The environmental information includes information on the traffic volume of people on the road,
The predetermined condition includes that the traffic volume is less than a threshold value.
The map information generating apparatus according to claim 1, wherein The environmental information includes road sign information indicating the attribute of the road,
The predetermined condition includes that the road sign does not indicate ineligibility for adding the road to the map in the storage unit,
The map information generation device according to claim 1 or 2, wherein A storage unit for storing a map;
A road information acquisition unit that acquires road information relating to a road not included in the map in the storage unit from a moving body that has moved the road;
An environmental information acquisition unit for acquiring environmental information of the road from the moving body;
Update map generation for generating an updated map in which the road is added to the map based on the road information acquired from the road information acquisition unit, the environmental information acquired by the environmental information acquisition unit, and the map And comprising;
The updated map generation unit adds the road to the map in the storage unit when the environment of the road reflected in the environment information satisfies a predetermined condition.
A map information generating device characterized by that.   The map information transmitting unit according to claim 4, further comprising a map information transmitting unit configured to transmit the map information to a mobile body that has transmitted the request when a request for the map information in the storage unit is received. Map information generator. In the storage unit, a map is stored for each moving body width range classified according to a predetermined criterion,
The road information acquisition unit further acquires moving body information capable of specifying a moving body width of the moving body,
The updated map generation unit updates a map in the storage unit corresponding to the moving body width specified by the moving body information.
The map information generation device according to claim 4, wherein   When receiving a request for information on a map in the storage unit that specifies a moving body width, a map information transmission unit that transmits information on a map corresponding to the specified moving body width to the moving body that has transmitted the request The map information generating apparatus according to claim 6, further comprising: A map information generating method used in a map information generating device that includes a storage unit that stores a map and updates the map,
A road information acquisition step of acquiring road information relating to the road when a moving body moves on a road not included in the map in the storage unit;
An environmental information acquisition step of acquiring environmental information of the road;
Update that generates an updated map in which the road is added to the map based on the road information acquired in the road information acquisition step, the environmental information acquired in the environment information acquisition step, and the map A map generation process;
In the updated map generation step, when the environment of the road reflected in the environment information satisfies a predetermined condition, the road is added to the map in the storage unit,
A map information generation method characterized by that.   A map information generation program comprising: a storage unit that stores a map; and causing a computer included in the map information generation apparatus that updates the map to execute the map information generation method according to claim 8.   10. A recording medium comprising: a storage unit for storing a map, wherein the map information generation program according to claim 9 is recorded so as to be readable by a computer included in the map information generation device that updates the map. .

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