Information processor, information processing method, and program

Abstract

To provide an information processor or the like capable of preventing a processing load of an on-vehicle device from being increased, and of supporting detailed navigation.SOLUTION: An information processor according to one embodiment of the present disclosure comprises: acquisition means for acquiring vehicle information as information about a size of a vehicle from an on-vehicle device installed in the vehicle, when the vehicle is present in an area including a specific section; determination means for determining whether or not the vehicle passes through the specific section, based on the vehicle information, and road information as information about road restriction in the specific section; and transmission means for transmitting, to the on-vehicle device, passing propriety information indicating whether or not the vehicle can pass through the specific section.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to navigation technology. [Background technology]

[0002] 2. Description of the Related Art There are technologies that provide road navigation to vehicle drivers. In particular, a system that displays maps, route guidance, and the like on a device mounted on a vehicle is sometimes called a car navigation system.

[0003] A technology related to navigation is disclosed, for example, in Patent Document 1. Specifically, Patent Document 1 discloses a navigation device that detects a road section where passing is difficult and satisfies a predetermined condition based on road width data, vehicle width data of the vehicle itself, and vehicle width data of various other vehicles, and notifies a user of the detected difficult-to-pass section. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2004-245610 A Summary of the Invention [Problem to be solved by the invention]

[0005] Not all vehicles can travel on roads that have restrictions on vehicle traffic, such as narrow roads or roads with height restrictions. Drivers may not know whether their vehicles can travel on such roads. For this reason, detailed navigation may be required.

[0006] The navigation device disclosed in Patent Document 1 notifies a user of difficult-to-pass sections. Here, the navigation device is a device mounted on a vehicle (i.e., an in-vehicle device). That is, in the technology disclosed in Patent Document 1, the in-vehicle device holds various data and performs various processes for notifying the user of difficult-to-pass sections. This may increase the processing load on the in-vehicle device. To address this, it is conceivable to design the in-vehicle device with hardware that can withstand the increased processing load, but this may lead to an increase in various costs associated with the in-vehicle device.

[0007] The present disclosure has been made in consideration of the above-mentioned problems, and one of its objectives is to provide an information processing device, etc. that can suppress an increase in the processing load of an in-vehicle device and assist with detailed navigation. [Means for solving the problem]

[0008] An information processing device according to one aspect of the present disclosure includes an acquisition means for acquiring vehicle information, which is information regarding the size of the vehicle, from an on-board device mounted on the vehicle when the vehicle is present in an area including a specific section, a determination means for determining whether the vehicle is able to pass through the specific section based on the vehicle information and road information, which is information regarding road constraints in the specific section, and a transmission means for transmitting passability information indicating whether the vehicle is able to pass through the specific section to the on-board device.

[0009] An information processing method according to one aspect of the present disclosure, when a vehicle is present in an area including a specific section, obtains vehicle information, which is information regarding the size of the vehicle, from an onboard device mounted on the vehicle, and determines whether or not the vehicle can pass through the specific section based on the vehicle information and road information, which is information regarding road constraints in the specific section, and transmits passability information indicating whether or not the vehicle can pass through the specific section to the onboard device.

[0010] A program according to one aspect of the present disclosure causes a computer to execute the following processes when a vehicle is present in an area including a specific section: acquiring vehicle information, which is information regarding the size of the vehicle, from an onboard device mounted on the vehicle; determining whether or not the vehicle is able to pass through the specific section based on the vehicle information and road information, which is information regarding road constraints in the specific section; and transmitting passability information indicating whether or not the vehicle is able to pass through the specific section to the onboard device. Effect of the Invention

[0011] According to the present disclosure, it is possible to suppress an increase in the processing load on an in-vehicle device and to assist with detailed navigation. [Brief description of the drawings]

[0012] [Figure 1] FIG. 1 is a diagram illustrating an example of a configuration including an information processing device according to the present disclosure. [Diagram 2] 1 is a block diagram showing an example of a functional configuration of an information processing device according to the present disclosure. [Diagram 3] 1 is a first flowchart illustrating an example of an operation of an information processing device according to the present disclosure. [Figure 4] FIG. 1 is a diagram illustrating an example of a configuration of a navigation support system according to the present disclosure. [Diagram 5] FIG. 1 is a diagram showing an example of a situation in which a navigation assistance system according to the present disclosure is applied; [Figure 6] 1 is a first block diagram showing an example of a functional configuration of a navigation assistance system according to the present disclosure. [Figure 7] FIG. 1 is a first diagram showing an example of an image of information showing the width at each point according to the present disclosure. [Figure 8] FIG. 1 is a first sequence diagram illustrating an example of an operation of a navigation support system according to the present disclosure. [Figure 9] FIG. 2 is a diagram showing a first example of passability information according to the present disclosure. [Figure 10]FIG. 13 is a diagram showing a second example of passability information according to the present disclosure. [Figure 11] FIG. 13 is a diagram showing a third example of passability information according to the present disclosure. [Figure 12] FIG. 1 is a diagram showing a schematic diagram of a subdivided region according to the present disclosure. [Figure 13] FIG. 2 is a second block diagram showing an example of a functional configuration of a navigation assistance system according to the present disclosure. [Figure 14] FIG. 2 is a second diagram showing an example of an image of information showing the width at each point according to the present disclosure. [Figure 15] FIG. 13 is a diagram showing a fourth example of passability information according to the present disclosure. [Figure 16] FIG. 21 is a second sequence diagram illustrating an example of the operation of the navigation support system according to the present disclosure. [Figure 17] FIG. 2 is a block diagram showing an example of a hardware configuration of a computer device that realizes a navigation assistance system according to the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings, in which each of the drawings is associated with one or more embodiments.

[0014] <First embodiment> An overview of the information processing apparatus according to the first embodiment will be described.

[0015] Fig. 1 is a diagram illustrating an example of a configuration including an information processing device 100. The navigation assistance system 1000 includes at least the information processing device 100. In the example of Fig. 1, the navigation assistance system 1000 includes the information processing device 100 and an in-vehicle device 200. The information processing device 100 is communicably connected to the in-vehicle device 200 via a network. At this time, the information processing device 100 may be able to communicate with the in-vehicle device 200 via a device having a communication function.

[0016] The vehicle-mounted device 200 is a device mounted on a vehicle. The vehicle-mounted device 200 is, for example, an information device that provides route guidance to the driver. The vehicle-mounted device 200 may be a device having a function of a car navigation system. The vehicle-mounted device 200 may also be a smartphone, a tablet terminal, or the like. The vehicle-mounted device 200 is equipped with output devices such as a display and a speaker. The vehicle-mounted device 200 may also be equipped with input devices such as a touch panel and a keyboard. The vehicle-mounted device 200 is operated, for example, by the driver of the vehicle.

[0017] The information processing device 100 is, for example, a server. The information processing device 100 may be a device installed on a road. Alternatively, the information processing device 100 may be a system realized on a cloud. The information processing device 100 performs various processes related to navigation according to information acquired from the vehicle-mounted device 200.

[0018] The navigation assistance system 1000 in the present disclosure provides, for example, information regarding passage through a specific section to a driver. The specific section is a road on which restrictions are imposed on vehicle passage. For example, a passage for passing under a railroad track or a road may have a height restriction on the vehicles passing through. Such a passage may be called an underpass. An example of the specific section is such an underpass. The specific section is not limited to this example, and may be a road whose width is equal to or less than a predetermined value, or a road on which a vehicle weight limit is set. The navigation assistance system 1000, for example, provides navigation regarding passage through the specific section to a driver of a vehicle equipped with the on-board device 200.

[0019] Next, an example of the functional configuration of the information processing device 100 will be described.

[0020] 2 is a block diagram showing an example of a functional configuration of the information processing device 100. The information processing device 100 includes an acquisition unit 110, a determination unit 120, and a transmission unit .

[0021] The acquisition unit 110 acquires vehicle information from the vehicle-mounted device 200. The vehicle information is information related to the size of the vehicle. For example, the vehicle information includes information indicating the height, width, length, and weight of the vehicle in which the vehicle-mounted device 200 is mounted.

[0022] The acquisition unit 110 may acquire vehicle information when a vehicle is present in an area including the specific section. For example, one or more roadside devices capable of communicating with the vehicle-mounted device 200 are installed along a road including the specific section. For example, when a vehicle enters the communication range of the roadside device, the roadside device acquires vehicle information from the vehicle-mounted device 200. Then, the acquisition unit 110 acquires vehicle information from the roadside device. That is, the acquisition unit 110 may acquire vehicle information from the vehicle-mounted device 200 via the roadside device. At this time, the vehicle is present in the communication range of the roadside device. The area including the specific section may be an area within a predetermined range from the specific section. Also, the area including the specific section may be the communication range of a roadside device installed along the road including the specific section. Note that the area including the specific section is not limited to this example. The area may include the specific section.

[0023] Also, the method of acquiring the vehicle information may be other methods. For example, it is assumed that the vehicle-mounted device 200 has a function of measuring its own position. At this time, the vehicle-mounted device 200 detects that the vehicle is present in an area including a specific section based on the measured position information. Then, the vehicle-mounted device 200 may transmit the vehicle information to the information processing device 100 in response to the detection. The acquisition unit 110 may acquire the vehicle information transmitted in this manner.

[0024] In this manner, when the vehicle is present in an area including the specific section, the acquisition unit 110 acquires vehicle information, which is information regarding the size of the vehicle, from the vehicle-mounted device 200 mounted on the vehicle. The acquisition unit 110 is an example of an acquisition means.

[0025] The determination unit 120 determines whether or not the vehicle equipped with the on-board device 200 can travel through the specific section. At this time, the determination unit 120 makes the determination based on the vehicle information acquired by the acquisition unit 110 and road information related to the specific section. The road information is information related to the constraints of the road in the specific section. For example, the road information includes information indicating the width, height, and weight limit of the road in the specific section. The road information is stored in a storage device possessed by the information processing device 100, for example. For example, the determination unit 120 may determine whether or not the vehicle equipped with the on-board device 200 can travel through the specific section depending on whether or not the vehicle satisfies the constraints of the specific section.

[0026] In this way, the determination unit 120 determines whether or not the vehicle can travel through the specific section based on the vehicle information and the road information, which is information related to the constraints of the road in the specific section. The determination unit 120 is an example of a determination means.

[0027] The transmitting unit 130 transmits the passability information to the vehicle-mounted device 200. The passability information is information indicating whether or not a vehicle can pass through the specific section. That is, the passability information includes information based on the result of the determination by the determining unit 120. The passability information may be generated by the determining unit 120. When a roadside device such as the one described above is installed along a road including the specific section, the transmitting unit 130 may transmit the passability information to the vehicle-mounted device 200 via the roadside device. At this time, the passability information is output in the vehicle-mounted device 200.

[0028] In this manner, the transmitting unit 130 transmits the passability information indicating whether or not the vehicle is permitted to pass through the specific section to the vehicle-mounted device 200. The transmitting unit 130 is an example of a transmitting means.

[0029] Next, an example of the operation of the information processing device 100 will be described with reference to Fig. 3. Note that in this disclosure, each step in a flowchart will be expressed using a number assigned to each step, such as "S1".

[0030] 3 is a flowchart for explaining an example of the operation of the information processing device 100. When the vehicle is present in an area including the specific section, the acquisition unit 110 acquires vehicle information, which is information related to the size of the vehicle, from the vehicle-mounted device 200 mounted on the vehicle (S1). The determination unit 120 determines whether or not the vehicle can travel through the specific section based on the vehicle information and road information, which is information related to the road restrictions of the specific section (S2). The transmission unit 130 transmits passability information, which indicates whether or not the vehicle can travel through the specific section, to the vehicle-mounted device 200 (S3).

[0031] In this way, when the vehicle is in an area including the specific section, the information processing device 100 acquires vehicle information, which is information about the size of the vehicle, from the vehicle-mounted device 200 mounted on the vehicle. Furthermore, the information processing device 100 determines whether or not the vehicle can pass through the specific section based on the vehicle information and road information, which is information about road restrictions in the specific section. Then, the information processing device 100 transmits passability information, which indicates whether or not the vehicle can pass through the specific section, to the vehicle-mounted device 200.

[0032] There are technologies for performing road navigation, such as car navigation systems. However, such systems do not provide detailed information such as whether a restricted road is passable or not. In response to this, the information processing device 100 can cause the vehicle-mounted device 200 to output whether a specific section is passable or not. The driver of the vehicle equipped with the vehicle-mounted device 200 can drive according to the output information. In other words, the information processing device 100 can support detailed navigation.

[0033] In addition, the determination of whether the vehicle can pass through the specific section is performed by the information processing device 100, which is a device different from the vehicle-mounted device 200. Therefore, the vehicle-mounted device 200 does not need to perform the determination process. Furthermore, since roads with restrictions exist in various places, the amount of data of road information including information on the width and height of each road may be enormous. The vehicle-mounted device 200 does not need to have such road information. Furthermore, the passability information is not transmitted to the vehicle-mounted device 200 of all vehicles, but is transmitted to the vehicle-mounted device 200 of a vehicle that exists in an area including the specific section. Therefore, when the vehicle-mounted device 200 exists in an area including the specific section, it is sufficient to communicate with the information processing device 100. In other words, the information processing device 100 can also contribute to suppressing an increase in the processing load of the vehicle-mounted device 200. In other words, the information processing device 100 can suppress an increase in the processing load of the vehicle-mounted device and support detailed navigation.

[0034] <Second embodiment> Next, a navigation support system including an information processing device of a second embodiment will be described. In the second embodiment, a further example of the information processing device 100 described in the first embodiment will be described. Note that some of the contents overlapping with the first embodiment will not be described.

[0035] Fig. 4 is a diagram showing a schematic configuration of a navigation assistance system 1000. The navigation assistance system 1000 includes at least an information processing device 100. In the example of Fig. 4, the navigation assistance system 1000 includes the information processing device 100, an in-vehicle device 200, and roadside units 300-1, 300-2, ..., 300-n (n is a natural number). Hereinafter, when there is no need to distinguish between the roadside units 300-1, 300-2, ..., 300-n, they will be simply referred to as roadside units 300.

[0036] The roadside device 300 is a communication device capable of communicating with the information processing device 100 and the vehicle-mounted device 200. In this embodiment, the information processing device 100 is capable of communicating with the vehicle-mounted device 200 via the roadside device 300. The network constructed in the navigation assistance system 1000 may be a wireless Local Area Network (LAN), a public line network, a mobile data communication network, or a combination of these networks. The mobile data communication network includes a third generation mobile communication system (3G: 3rd Generation), a Long Term Evolution (LTE), a fourth generation mobile communication system (4G: 4th Generation), a fifth generation mobile communication system (5G: 5th Generation), and the like. Here, a 5G network, a dedicated network constructed in a specific range, is called a local 5G. The network of the navigation assistance system 1000 of the present disclosure may be constructed by a local 5G.

[0037] Next, an example of a situation in which the navigation support system 1000 in this embodiment is applied will be described. Fig. 5 is a diagram showing an example of a situation in which the navigation support system 1000 is applied. In the example of Fig. 5, a vehicle traveling on a road leading to a specific section is shown. The vehicle is equipped with an on-board device 200.

[0038] An area including the specific section is called a management area. That is, the roadside units 300-1, 300-2, and 300-3 are installed in an area including the specific section. In this example, the roadside units 300-1, 300-2, and 300-3 are installed along the road. The information processing device 100 can communicate with each of the roadside units 300-1, 300-2, and 300-3.

[0039] The communication range of each of the roadside devices 300-1, 300-2, and 300-3 includes at least the management area. For example, in the example of FIG. 5, the vehicle is traveling in the direction in which the specific section exists. When the vehicle enters the management area, the vehicle-mounted device 200 communicates with the roadside device 300-1. The information processing device 100 acquires various information from the vehicle-mounted device 200 via, for example, the roadside device 300-1. In addition, the information processing device 100 transmits information related to the passage of the specific section to the vehicle-mounted device 200 via any of the roadside devices 300-1, 300-2, and 300-3. The vehicle-mounted device 200 outputs information related to the passage of the specific section based on the information acquired from the roadside devices 300-1, 300-2, and 300-3. In this way, the navigation assistance system 1000 performs navigation for the driver of the vehicle that exists in the management area. The management area is not limited to this example. As described above, the management area only needs to include a specific section.

[0040] [Details of the Navigation Support System 1000] FIG. 6 is a block diagram showing an example of a functional configuration of the navigation assistance system 1000. As shown in FIG.

[0041] The roadside device 300 includes a communication unit 310. The communication unit 310 transmits and receives information to and from the information processing device 100 and the vehicle-mounted device 200. When a vehicle equipped with the vehicle-mounted device 200 enters the communication range, the communication unit 310 establishes communication with the vehicle-mounted device 200. In addition, the communication unit 310 may notify the information processing device 100 that the vehicle has entered the management area when the vehicle has entered the communication range.

[0042] The vehicle-mounted device 200 includes a measurement unit 210, an information transmission unit 220, an information acquisition unit 230, and an output control unit 240. The vehicle-mounted device 200 also includes a storage device 290. The storage device 290 stores vehicle information. The storage device 290 may be an external device to the vehicle-mounted device 200 that can communicate with the vehicle-mounted device 200.

[0043] The measurement unit 210 measures the position information of the in-vehicle device 200, that is, the position information of the vehicle itself. The measurement unit 210 is an example of a measurement means. Specifically, the measurement unit 210 measures the position information by receiving a positioning signal related to the position information. For example, the measurement unit 210 may receive a signal transmitted from a positioning satellite of a GNSS (Global Navigation Satellite System) such as a GPS (Global Positioning System) satellite, and measure the position information indicating the position of the vehicle itself based on the received signal. The measurement unit 210 may store the acquired position information in the storage device 290.

[0044] The information transmission unit 220 transmits various information. Specifically, the information transmission unit 220 transmits vehicle information, which is information about the size of the vehicle in which the information transmission unit 220 is mounted, to the information processing device 100. The information transmission unit 220 is an example of an information transmission means.

[0045] For example, the information transmission unit 220 transmits the vehicle information stored in the storage device 290 to the roadside device 300. The vehicle information may be information input to the in-vehicle device 200 by a user such as a driver. The vehicle information is transmitted to the information processing device 100 by the communication unit 310 of the roadside device 300. That is, the information transmission unit 220 transmits the vehicle information to the information processing device 100 via the roadside device 300.

[0046] The information transmission unit 220 may transmit, to the roadside device 300, identification information, location information, traveling speed, and the like of the vehicle in which the on-board device 200 is mounted. At this time, the identification information, location information, traveling speed, and the like are transmitted to the information processing device 100 by the communication unit 310 of the roadside device 300.

[0047] The information acquisition unit 230 acquires various information. Specifically, the information acquisition unit 230 acquires passability information indicating whether or not a vehicle can pass through a specific section from the information processing device 100. The information acquisition unit 230 is an example of an information acquisition means.

[0048] For example, the information processing device 100 transmits the passability information to the roadside device 300. Then, the communication unit 310 transmits the passability information to the vehicle-mounted device 200. That is, the information acquisition unit 230 acquires the passability information from the information processing device 100 via the roadside device 300. In addition, the information acquisition unit 230 may acquire further information such as map information from the information processing device 100.

[0049] The output control unit 240 outputs various information to an output device included in the vehicle-mounted device 200. Specifically, the output control unit 240 outputs passability information. The output control unit 240 is an example of an output control means.

[0050] For example, the output control unit 240 causes the passability information acquired by the information acquisition unit 230 to be displayed on a display of the vehicle-mounted device 200. Without being limited to this example, the output control unit 240 may cause a speaker of the vehicle-mounted device 200 to output the passability information. Furthermore, the output control unit 240 may cause map information and position information to be output. For example, the output control unit 240 may cause the display of the vehicle-mounted device 200 to display map information on which the position information measured by the measurement unit 210 is superimposed. The map information may be acquired from the roadside device 300, or may be stored in advance in the storage device 290.

[0051] The information processing device 100 includes an acquisition unit 110, a determination unit 120, and a transmission unit 130. The information processing device 100 also includes a storage device 190. The storage device 190 stores road information. Note that the storage device 190 may be an external device to the information processing device 100 that can communicate with the information processing device 100.

[0052] The acquisition unit 110 acquires information transmitted from the vehicle-mounted device 200 via the roadside device 300. Specifically, the information transmission unit 220 of the vehicle-mounted device 200 transmits vehicle information to the roadside device 300. The communication unit 310 of the roadside device 300 transmits the vehicle information to the information processing device 100. The acquisition unit 110 acquires the vehicle information transmitted from the roadside device 300. Similarly, when identification information, position information, traveling speed, and the like are transmitted by the information transmission unit 220, the acquisition unit 110 acquires the transmitted information.

[0053] The determination unit 120 determines whether or not the vehicle equipped with the on-board device 200 can pass through the specific section based on the vehicle information and the road information. The road information is information about the road restrictions of the specific section. For example, the road information includes information indicating the height, width, and weight limit of the road of the specific section. The road information may also include information indicating events such as accidents, construction, and disasters that have occurred on the road of the specific section. The road restrictions of the specific section indicated in the road information may arise due to the occurrence of events such as accidents, construction, and disasters. The road information may further include location information of the specific section, etc.

[0054] The road information is stored in, for example, the storage device 190 of the information processing device 100. The road information can be updated as appropriate by, for example, an administrator of the information processing device 100. This allows information based on the latest road information to be always transmitted to the vehicle-mounted device 200 of a vehicle passing through the management area. In contrast, when the vehicle-mounted device 200 has road information in advance and performs processing based on the road information, navigation based on the latest road information is not performed unless the road information is updated in the vehicle-mounted device 200.

[0055] The determination unit 120 determines, based on the vehicle information, whether or not the vehicle in which the on-board device 200 is mounted satisfies the constraints of the road in the specific section.

[0056] A case will be described in which the road information includes information indicating a height limit of a road in a specific section. For example, it is assumed that the road information indicates that the height of the road in the specific section is 2.4 m (meters). If the vehicle information indicates that the height of the vehicle exceeds 2.4 m, the determination unit 120 determines that the vehicle cannot pass through the specific section. Alternatively, if the vehicle information indicates that the height of the vehicle is less than 2.4 m, the determination unit 120 determines that the vehicle can pass through the specific section. Then, the determination unit 120 generates passability information including information based on the result of the determination. For example, if the height of the vehicle exceeds 2.4 m, the passability information includes information indicating that the vehicle cannot pass through the specific section. Furthermore, the passability information may include road information.

[0057] At this time, the determination unit 120 may generate information to call attention when the difference between the height of the road in the specific section and the height of the vehicle is less than a predetermined value, even if the vehicle is passable. For example, when the height of the road is 2.4 m and the height of the vehicle is 2.35 m, it can be said that the vehicle is passable. However, there is a possibility that the vehicle has an antenna on its roof or that luggage is placed on the roof. In this case, the actual height of the vehicle may be greater than the height indicated in the vehicle information. Therefore, when the difference between the height of the road in the specific section and the height of the vehicle is less than a predetermined value, the determination unit 120 may generate passability information including information to call attention.

[0058] The determination unit 120 also performs a similar determination when the road information includes information indicating the weight limit of the road in the specific section. That is, when the weight of the vehicle indicated in the vehicle information exceeds the weight limit indicated in the road information, the determination unit 120 determines that the vehicle cannot pass through the specific section. Even if the vehicle can pass through, when the difference between the weight limit of the road in the specific section and the weight of the vehicle is less than a predetermined value, the determination unit 120 may generate information to call attention. For example, depending on the baggage loaded on the vehicle, the weight of the entire vehicle including the baggage may exceed the weight limit. Therefore, when the difference between the weight limit of the road in the specific section and the weight of the vehicle is less than a predetermined value, the determination unit 120 may generate passability information including information to call attention.

[0059] Next, a case will be described where the road information includes information indicating the road width of a specific section. In this case, for example, the road information includes information indicating a plurality of widths within the specific section. FIG. 7 is a diagram showing an example of an image of information indicating the width for each point. In the example of FIG. 7, a road including the specific section is shown. In this example, the width of the road in the specific section varies depending on the point. For example, point A in the specific section has a width of 2.5 m, and point B has a width of 1.5 m. The road information may include, for example, information indicating the width for each point within such a specific section.

[0060] Assume that road information includes information indicating the road width as shown in the example of Fig. 7. For example, if the vehicle information indicates that the vehicle width is 1.8 m, the vehicle can pass through point A but cannot pass through point B. In this case, the determination unit 120 determines that the vehicle cannot pass through the specific section. In this way, the determination unit 120 may determine that the vehicle cannot pass through the specific section when the vehicle width exceeds the width of at least one of the points in the specific section.

[0061] In addition, even if the vehicle is passable, if the difference between the road width of the specific section and the vehicle width is less than a predetermined value, the determination unit 120 may generate information to call attention. For example, there is a possibility that the luggage loaded on the roof of the vehicle has a width that exceeds the vehicle width. Or, there may be a point in the specific section where an oncoming vehicle cannot pass each other. Therefore, if the difference between the road width of the specific section and the vehicle width is less than a predetermined value, the determination unit 120 may generate passability information including information to call attention.

[0062] The information included in the passability information is not limited to the above examples. For example, the passability information may include vehicle information and road information. The passability information may also include a distance from the vehicle to the specific section. In this case, the determination unit 120 calculates the distance from the vehicle to the specific section based on the position information acquired from the vehicle-mounted device 200 and the position of the specific section.

[0063] The transmitting unit 130 transmits the generated passability information to the vehicle-mounted device 200. More specifically, the transmitting unit 130 transmits the passability information to the roadside device 300. The communication unit 310 of the roadside device 300 transmits the passability information to the vehicle-mounted device 200. That is, the transmitting unit 130 transmits the passability information to the vehicle-mounted device 200 via the roadside device 300. The output control unit 240 of the vehicle-mounted device 200 causes the passability information transmitted by the transmitting unit 130 to be displayed on a display of the vehicle-mounted device 200, for example.

[0064] The transmission unit 130 may transmit further information to the vehicle-mounted device 200. For example, map information indicating a management area may be transmitted to the vehicle-mounted device 200. The output control unit 240 causes the map information transmitted by the transmission unit 130 to be displayed, for example, on the display of the vehicle-mounted device 200. This allows the vehicle-mounted device 200 to provide navigation around a specific section to the driver even if the vehicle-mounted device 200 does not have map information in advance.

[0065] [Example of operation of the navigation support system 1000] Next, an example of the operation of the navigation assistance system 1000 will be described with reference to Fig. 8. In this operation example, when a specific section with a height limit exists, navigation regarding the specific section is performed for the driver of the vehicle.

[0066] 8 is a sequence diagram illustrating an example of the operation of the navigation assistance system 1000. First, a vehicle equipped with the vehicle-mounted device 200 enters a management area. The communication unit 310 of the roadside device 300 establishes communication with the vehicle-mounted device 200 (S101). Thereafter, the information processing device 100 is able to communicate with the vehicle-mounted device 200 via the roadside devices 300-1, 300-2, . . . 300-n. The communication unit 310 notifies the information processing device 100 that the vehicle has entered the management area (S102).

[0067] The transmitting unit 130 of the information processing device 100 transmits map information indicating the management area to the vehicle-mounted device 200 via the roadside device 300 (S103). The information acquiring unit 230 of the vehicle-mounted device 200 acquires the map information (S104). The output control unit 240 causes the display to display the map information to which the position information has been added (S105). At this time, the measuring unit 210 measures the position information at all times. For example, the output control unit 240 superimposes the measured position information on the map information acquired from the information processing device 100. Then, the output control unit 240 may cause the map information on which the position information has been superimposed to be displayed.

[0068] The information transmission unit 220 of the vehicle-mounted device 200 transmits the vehicle information to the information processing device 100 via the roadside device 300 (S106). The acquisition unit 110 of the information processing device 100 acquires the vehicle information (S107). The determination unit 120 determines whether or not the vehicle in which the vehicle-mounted device 200 is mounted can pass through the specific section (S108). For example, the determination unit 120 determines whether or not the height of the vehicle indicated in the vehicle information exceeds the height of the road in the specific section indicated in the road information. If the height of the vehicle is equal to or greater than the height of the specific section, the determination unit 120 determines that the vehicle cannot pass through the specific section. If the height of the vehicle is less than the height of the specific section, the determination unit 120 determines that the vehicle can pass through the specific section.

[0069] The determination unit 120 generates passability information including information based on the result of the determination (S109). The transmission unit 130 transmits the generated passability information to the vehicle-mounted device 200 via the roadside device 300 (S110). The information acquisition unit 230 of the vehicle-mounted device 200 acquires the passability information (S111). The output control unit 240 outputs the passability information (S112). For example, the output control unit 240 displays map information on which the passability information is superimposed.

[0070] FIG. 9 is a diagram showing a first example of passability information. More specifically, FIG. 9 is an example of passability information displayed on the vehicle-mounted device 200 when it is determined that the vehicle cannot pass through the specific section. In this example, position information and passability information are superimposed on map information. The passability information indicates that the vehicle cannot pass through an underpass, which is a specific section. Furthermore, the passability information indicates information indicating the height of the underpass indicated in the road information and the height of the vehicle indicated in the vehicle information. By visually checking the information displayed in this manner, the driver can confirm that the vehicle cannot pass through the specific section.

[0071] Fig. 10 is a diagram showing a second example of the passability information. More specifically, Fig. 10 is an example of the passability information displayed on the vehicle-mounted device 200 when it is determined that the vehicle is passable through the specific section. In this example, the passability information indicates that the vehicle is passable through the underpass. Furthermore, the passability information shown in Fig. 9 is highlighted compared to the passability information shown in Fig. 10. In this way, the passability information indicating that the vehicle cannot pass through the specific section may be displayed more highlighted than the passability information indicating that the vehicle can pass through the specific section.

[0072] FIG. 11 is a diagram showing a third example of the passability information. More specifically, FIG. 11 shows an example of the passability information displayed on the vehicle-mounted device 200 when the vehicle is passable through the specific section and the difference between the height of the road in the specific section and the height of the vehicle is less than a predetermined value. In this case, the passability information includes information that calls attention. In this example, text information saying "Please take a detour if there is a load that exceeds the vehicle height" is displayed in the passability information. As shown in FIG. 9, FIG. 10, and FIG. 11, the display mode of the passability information may be different depending on the determination result of whether the vehicle is passable through the specific section.

[0073] The above-described operation example is merely one example of the operation of the navigation assistance system 1000. In other words, the operation of the navigation assistance system 1000 is not limited to the example of FIG.

[0074] In this way, the information processing device 100 of the second embodiment acquires vehicle information, which is information related to the size of the vehicle, from the vehicle-mounted device 200 mounted on the vehicle when the vehicle is in an area including the specific section. The information processing device 100 also determines whether or not the vehicle can pass through the specific section based on the vehicle information and road information, which is information related to road restrictions in the specific section. Then, the information processing device 100 transmits passability information indicating whether or not the vehicle can pass through the specific section to the vehicle-mounted device 200.

[0075] There are technologies for performing road navigation, such as car navigation systems. However, such systems do not provide detailed information such as whether a restricted road is passable or not. In response to this, the information processing device 100 can cause the vehicle-mounted device 200 to output whether a specific section is passable or not. The driver of the vehicle equipped with the vehicle-mounted device 200 can drive according to the output information. In other words, the information processing device 100 can support detailed navigation.

[0076] In addition, the information processing device 100, which is a device different from the vehicle-mounted device 200, determines whether the vehicle can pass through the specific section. Therefore, the vehicle-mounted device 200 does not need to perform the determination process. Furthermore, since roads with restrictions exist in various places, the amount of data of road information including information on the width and height of each road may be enormous. The vehicle-mounted device 200 does not need to have such road information. Furthermore, the passability information is not transmitted to the vehicle-mounted device 200 of all vehicles, but is transmitted to the vehicle-mounted device 200 of a vehicle that exists in an area including the specific section. Therefore, when the vehicle-mounted device 200 exists in an area including the specific section, it is sufficient to communicate with the information processing device 100. In this way, the information processing device 100 can also contribute to suppressing an increase in the processing load of the vehicle-mounted device 200. In other words, the information processing device 100 can suppress an increase in the processing load of the vehicle-mounted device and support detailed navigation.

[0077] Furthermore, the information processing device 100 may acquire vehicle information via a roadside device 300 installed in the area. Then, the information processing device 100 transmits map information indicating the area and passability information to the vehicle-mounted device 200 via the roadside device 300. This allows the vehicle-mounted device 200 to perform navigation based on the transmitted map information and passability information. In other words, the vehicle-mounted device 200 can perform navigation even if it does not have in advance map information indicating the area including the specific section. In other words, the information processing device 100 can assist in navigation.

[0078] Furthermore, when it is determined that the vehicle is passable through the specific section, and the difference between the size of the vehicle and the road constraints of the specific section is less than a predetermined value, the information processing device 100 may transmit passability information including information to warn about passing through the specific section to the vehicle-mounted device 200. The actual size of the vehicle may differ from the size indicated in the vehicle information due to luggage being loaded on the roof of the vehicle or the vehicle being modified. In such a case, even if the vehicle is passable through the specific section based on the vehicle information, the vehicle may not actually be able to pass through the specific section. The information processing device 100 can inform the driver of such a possibility that the vehicle may not be able to pass through the specific section.

[0079] Furthermore, the information processing device 100 may transmit to the vehicle-mounted device 200 passability information that is displayed in a different manner depending on the determination result of whether the vehicle is passable through the specific section. For example, passability information indicating that the vehicle is not passable through the specific section is displayed more emphasized than passability information indicating that the vehicle is passable through the specific section. In this case, the information processing device 100 can make the driver more aware that the vehicle is not passable through the specific section.

[0080] The vehicle information may include, for example, information on the width and height of the vehicle. In this case, the road information includes at least one of information on the width and height of the road in the specific section. The vehicle information may also include information on the weight of the vehicle. In this case, the road information includes information indicating the weight limit of the road in the specific section. In this way, the information processing device 100 can determine whether or not a vehicle can pass through a specific section that has restrictions on width, height, and weight limit, for example.

[0081] The vehicle-mounted device 200 transmits vehicle information, which is information about the size of the vehicle on which the device is mounted, to the information processing device 100. The vehicle-mounted device 200 also acquires passability information indicating whether or not the vehicle can pass through a specific section from the information processing device 100. Then, the vehicle-mounted device 200 outputs the passability information. In this way, the vehicle-mounted device 200 achieves the same effect as the above-mentioned information processing device 100. For example, the vehicle-mounted device 200 can notify the driver of the vehicle whether or not the specific section is passable. Furthermore, the vehicle-mounted device 200 does not need to determine whether or not the vehicle can pass through the specific section. In other words, the vehicle-mounted device 200 can suppress an increase in the processing load of the device and support detailed navigation.

[0082] The vehicle-mounted device 200 may measure its own position information. In this case, when the vehicle is present in an area including the specific section, the vehicle-mounted device 200 acquires map information indicating the area from the information processing device 100. Then, the vehicle-mounted device 200 outputs the map information on which the position information is superimposed and the passability information. This allows the vehicle-mounted device 200 to perform navigation around the specific section even if the vehicle-mounted device 200 itself does not have map information.

[0083] Furthermore, when the passability information indicates that the vehicle cannot pass through the specific section, the vehicle-mounted device 200 may output the passability information in an emphasized manner, as compared with when the passability information indicates that the vehicle can pass through the specific section. This allows the vehicle-mounted device 200 to more strongly recognize that the specific section is not passable.

[0084] [Variation 1] The navigation assistance system 1000 may perform navigation outside the specific section.

[0085] For example, a given area is subdivided. Then, each of the subdivided areas is set as a management area. FIG. 12 is a diagram showing a schematic diagram of a subdivided area. In the example of FIG. 12, a plurality of management areas are shown. In this case, the management area does not necessarily include a specific section.

[0086] Each of the management areas is provided with a corresponding roadside device 300. For example, when the roadside device 300 corresponding to the management area A1 is communicating with the vehicle-mounted device 200, the navigation assistance system 1000 can determine that the vehicle equipped with the vehicle-mounted device 200 is present in the management area A1.

[0087] The information processing device 100 may transmit map information including one management area and management areas surrounding the one management area to the vehicle-mounted device 200 of a vehicle traveling in the one management area. Then, the vehicle-mounted device 200 performs navigation using the transmitted map information and its own position information. For example, in the example of FIG. 12, the vehicle is traveling in the management area C2. In this case, the transmission unit 130 of the information processing device 100 transmits map information including the management areas B2, B3, C1, C2, C3, D2, and D3 to the vehicle-mounted device 200. This allows the navigation support system 1000 to perform navigation even if the vehicle-mounted device 200 does not have map information in advance. At this time, the determination unit 120 may determine whether or not a specific section in a management area other than the management area C2 is passable. Then, the transmission unit 130 may transmit passability information based on the result of the determination to the vehicle-mounted device 200 of the vehicle.

[0088] <Third embodiment> Next, a navigation support system including an information processing device according to a third embodiment will be described. In the third embodiment, an example in which vehicles pass each other in a specific section will be described. Note that some of the contents overlapping with those of the first and second embodiments will not be described.

[0089] [Details of Navigation Support System 1001] Fig. 13 is a block diagram showing an example of a functional configuration of a navigation assistance system 1001. The navigation assistance system 1001 of this embodiment includes an information processing device 101 instead of the information processing device 100 of the navigation assistance system 1000 shown in Fig. 4. That is, the navigation assistance system 1001 includes the information processing device 101, an in-vehicle device 200, and a roadside device 300.

[0090] The information processing device 101 may perform the processes described below in addition to the processes of the information processing device 100 described in the first and second embodiments.

[0091] The information processing device 101 includes an acquisition unit 111, a determination unit 121, a transmission unit 131, and a prediction unit 140. The acquisition unit 111 acquires vehicle information and location information from the in-vehicle device 200 of one or more vehicles present in the management area. That is, when a plurality of vehicles exist in the management area, the acquisition unit 111 may acquire vehicle information and location information from the in-vehicle device 200 of each of the plurality of vehicles. The acquisition unit 111 may acquire the vehicle information and location information at different times. For example, the acquisition unit 111 may acquire the vehicle information when the vehicle enters the management area. Furthermore, the acquisition unit 111 may continue to acquire location information at any time.

[0092] The prediction unit 140 predicts the occurrence of vehicle passing each other in a specific section. For example, the prediction unit 140 estimates the traveling direction of each vehicle from the position information acquired by the acquisition unit 111. Then, the prediction unit 140 predicts the occurrence of vehicle passing each other in the specific section from the position information and traveling direction of each vehicle. Note that the prediction method is not limited to this example. For example, the prediction unit 140 may estimate the position and traveling direction of the vehicle based on the location of the roadside device 300 that communicates with the vehicle-mounted device 200, and predict the occurrence of a passing.

[0093] In this way, the prediction unit 140 predicts the occurrence of vehicle passing in a specific section based on the position information. The prediction unit 140 is an example of a prediction means.

[0094] The determination unit 121 determines whether or not passing of vehicles is possible in the specific section. Specifically, the determination unit 121 determines whether or not passing of vehicles is possible at each point in the specific section based on the vehicle information of a vehicle predicted to pass another vehicle and the road information.

[0095] FIG. 14 is a diagram showing an example of an image of information indicating the width for each point. For example, a specific section exists on a road as shown in FIG. 14. In this case, the road information includes information indicating the widths of points E, F, G, and H in the specific section. Also, assume that vehicles with a width of 1.8 m pass each other. In this case, the points at which the vehicles can pass each other are points with a width of more than 3.6 m. In the example of FIG. 14, the vehicles cannot pass each other at points E and H. On the other hand, the vehicles can pass each other at points F and G. Therefore, in this example, the determination unit 121 determines that the vehicles can pass each other at points F and G in the specific section. In this way, the determination unit 121 may identify points at which the vehicles can pass each other in the specific section.

[0096] The determination unit 121 generates passability information including information based on the result of the determination. At this time, the determination unit 121 may generate passability information corresponding to each vehicle. For example, assume that three vehicles are present in the management area. The vehicles at this time are vehicle X, vehicle Y, and vehicle Z. For example, for vehicle X, the determination unit 121 determines whether or not the vehicle can pass by passing each other based on the vehicle information of vehicle X, the vehicle information of oncoming vehicle Y or vehicle Z, and road information. Then, the determination unit 121 generates passability information based on the determination result as passability information corresponding to vehicle X. Similarly, the determination unit 121 may generate passability information for each of vehicle Y and vehicle Z.

[0097] The transmitting unit 131 transmits the passability information to the vehicle-mounted device 200. At this time, the transmitting unit 131 transmits the passability information corresponding to the vehicle in which the vehicle-mounted device 200 is mounted to the destination vehicle-mounted device 200. The passability information indicates, for example, a prediction result of the occurrence of passing, predicted by the prediction unit 140, and whether or not passing is possible, determined by the determination unit 121.

[0098] In this way, the transmitting unit 131 transmits the predicted result of the occurrence of passing and the passability information indicating whether or not passing is possible to the on-board device 200 of the vehicle present in the management area. At this time, the passability information may indicate the point identified by the determining unit 121 as being passable by passing.

[0099] The transmitted passability information is output by the output control unit 240 of the vehicle-mounted device 200. Fig. 15 is a diagram showing a fourth example of the passability information. In this example, the vehicle's position information and the position information of the oncoming vehicle are superimposed on the map information. The passability information is further superimposed on the map information. The passability information indicates that passing will occur. The passability information also indicates points where passing with the oncoming vehicle is possible.

[0100] [Example of operation of navigation support system 1001] Next, an example of the operation of the navigation assistance system 1001 will be described with reference to Fig. 16. In this operation example, an example will be described in which navigation regarding a specific section is performed for the driver of a vehicle when a passing occurs.

[0101] Fig. 16 is a sequence diagram for explaining an example of the operation of the navigation assistance system 1001. Note that the example of Fig. 16 describes an example of the operation of the on-board device 200 of one vehicle existing in the management area. That is, the navigation assistance system 1001 may perform the processes of S201 to S213 for each of a plurality of vehicles existing in the management area.

[0102] The processes of S201 to S205 are the same as those of S101 to S105 in Fig. 8, and therefore will not be described. The information transmitting unit 220 of the vehicle-mounted device 200 transmits the vehicle information and the position information to the information processing device 100 via the roadside device 300 (S206). At this time, the measuring unit 210 measures the position information at any time. The acquiring unit 111 of the information processing device 100 acquires the vehicle information and the position information (S207).

[0103] The prediction unit 140 predicts the occurrence of a passing based on the position information (S208). At this time, the information processing device 101 acquires the position information from each of the vehicle-mounted devices 200 of the vehicles present in the management area. If it is predicted that a passing will not occur, the information processing device 101 may end the process.

[0104] The determination unit 121 determines whether or not passing through the specific section is possible (S209). At this time, the determination unit 121 may identify a point in the specific section where passing through is possible. Then, the determination unit 121 generates passability information indicating a prediction result of the occurrence of passing and whether or not passing through is possible (S210).

[0105] The transmission unit 131 transmits the generated passability information to the vehicle-mounted device 200 via the roadside device 300 (S211). At this time, the transmission unit 131 may transmit position information of the oncoming vehicle. The information acquisition unit 230 of the vehicle-mounted device 200 acquires the passability information (S212). The output control unit 240 outputs the passability information (S213). For example, the output control unit 240 causes the display of the vehicle-mounted device 200 to display passability information as shown in FIG. 15.

[0106] The above-described operation example is merely one example of the operation of the navigation assistance system 1001. In other words, the operation of the navigation assistance system 1001 is not limited to the example in FIG.

[0107] In this way, the information processing device 101 of the third embodiment acquires vehicle information and position information from the vehicle-mounted device 200 of one or more vehicles present in the area, and predicts the occurrence of vehicle passing in the specific section based on the position information. In addition, the information processing device 101 determines whether or not passing of vehicles is possible in the specific section. Then, the information processing device 101 transmits the predicted result of the occurrence of passing and the passability information indicating whether or not passing is possible to the vehicle-mounted device of the vehicle present in the area. As a result, the information processing device 101 can cause the vehicle-mounted device 200 to output, for example, whether or not passing will occur and whether or not passing is possible in the specific section. Therefore, the driver of the vehicle equipped with the vehicle-mounted device 200 can drive according to the output information. That is, the information processing device 101 can support detailed navigation.

[0108] At this time, the information processing device 101 may identify a point within the specific section where passing is possible. Then, the information processing device 101 may transmit passability information indicating the identified point to the vehicle-mounted device 200 of the vehicle present in the area. This allows the information processing device 101 to cause the vehicle-mounted device 200 to output where passing is possible. Therefore, the driver can drive according to the situation, for example, by having the vehicle wait at a point where passing is possible.

[0109] <Example of hardware configuration for navigation support system> The hardware constituting the navigation support system of the first, second and third embodiments described above will be described. Fig. 17 is a block diagram showing an example of the hardware configuration of a computer device constituting the navigation support system in each embodiment. The information processing device and the information processing method described in each embodiment and each modified example are realized in a computer device 90. For example, the information processing device, the in-vehicle device, the roadside device, etc. described in each embodiment and each modified example may have the hardware configuration shown in Fig. 17.

[0110] 17, a computer device 90 includes a processor 91, a RAM (Random Access Memory) 92, a ROM (Read Only Memory) 93, a storage device 94, an input / output interface 95, a bus 96, and a drive device 97. Note that an information processing device or the like may be realized by a plurality of electric circuits.

[0111] The storage device 94 stores a program (computer program) 98. The processor 91 executes the program 98 of the present reception support system using the RAM 92. Specifically, for example, the program 98 includes a program that causes a computer to execute processes shown in FIG. 3, FIG. 8, FIG. 16, etc. As the processor 91 executes the program 98, the functions of the components of the present navigation support system are realized. The program 98 may be stored in the ROM 93. The program 98 may also be recorded in the storage medium 80 and read out using the drive device 97, or may be transmitted to the computer device 90 from an external device (not shown) via a network (not shown).

[0112] The input / output interface 95 exchanges data with peripheral devices (such as a keyboard, a mouse, and a display device) 99. The input / output interface 95 functions as a means for acquiring or outputting data. The bus 96 connects each component.

[0113] There are various variations in the method of implementing the navigation assistance system. For example, each component included in the information processing device and the vehicle-mounted device can be implemented as a dedicated device. Also, each of the information processing device, the vehicle-mounted device, and the roadside device can be implemented based on a combination of multiple devices.

[0114] The scope of each embodiment also includes a processing method for recording a program for implementing each configuration in the functions of each embodiment on a storage medium, reading the program recorded on the storage medium as code, and executing the program on a computer. That is, a computer-readable storage medium is also included in the scope of each embodiment. Also, the storage medium on which the above-mentioned program is recorded and the program itself are included in each embodiment.

[0115] The storage medium is, for example, a floppy disk, a hard disk, an optical disk, a magneto-optical disk, a CD (Compact Disc)-ROM, a magnetic tape, a non-volatile memory card, or a ROM, but is not limited to these examples. Furthermore, the programs recorded on the storage medium are not limited to programs that execute processes independently, but also include programs that operate on an OS (Operating System) and execute processes in cooperation with other software and functions of an expansion board, which are included in the scope of each embodiment.

[0116] Although the present invention has been described above with reference to the embodiment, the present invention is not limited to the above embodiment. Various modifications that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention.

[0117] Furthermore, the above-described embodiments and modifications can be combined as appropriate.

[0118] A part or all of the above-described embodiments can be described as, but is not limited to, the following supplementary notes.

[0119] <Additional Notes>

[0120] [Appendix 1] an acquisition means for acquiring vehicle information, which is information relating to the size of the vehicle, from an on-board device mounted on the vehicle when the vehicle is present in an area including a specific section; a determination means for determining whether or not the vehicle is capable of passing through the specific section based on the vehicle information and road information that is information regarding restrictions on the road in the specific section; a transmitting means for transmitting passability information indicating whether the vehicle is permitted to pass through the specific section to the vehicle-mounted device, Information processing device.

[0121] [Appendix 2] The acquisition means acquires the vehicle information via a roadside unit installed in the area, The transmission means transmits map information indicating the area and the passability information to the vehicle-mounted device via the roadside device. 2. An information processing device according to claim 1.

[0122] [Appendix 3] When it is determined that the vehicle is capable of passing through the specific section, and the difference between the size of the vehicle and the road constraint of the specific section is less than a predetermined value, The transmitting means transmits the passability information including information to warn the driver about passing through the specific section to the vehicle-mounted device. 3. The information processing device according to claim 1 or 2.

[0123] [Appendix 4] The transmitting means transmits to the vehicle-mounted device the passability information, the passability information being displayed in a different manner depending on a result of a determination as to whether the vehicle is passable through the specific section. 4. An information processing device according to any one of claims 1 to 3.

[0124] [Appendix 5] The vehicle information includes information on the width and height of the vehicle, The road information includes at least one of information on the width and height of the road in the specific section. 5. An information processing device according to any one of claims 1 to 4.

[0125] [Appendix 6] The vehicle information includes information on the weight of the vehicle, The road information includes information indicating a weight limit of the specific section of the road. 6. An information processing device according to any one of claims 1 to 5.

[0126] [Appendix 7] Further comprising a prediction means, The acquisition means acquires the vehicle information and the position information from an on-board device of one or more vehicles present in the area, The prediction means predicts an occurrence of a passing of vehicles in the specific section based on the position information, The determination means determines whether or not passing of vehicles is possible in the specific section, The transmitting means transmits the predicted result of the occurrence of passing and the passability information indicating whether or not passing is possible to an in-vehicle device of a vehicle present in the area. 7. An information processing device according to claim 1.

[0127] [Appendix 8] The determination means identifies a point within the specific section where passing is possible, The transmitting means transmits the passability information indicating the identified point to an on-board device of a vehicle present in the area. 8. The information processing device according to claim 7.

[0128] [Appendix 9] When a vehicle is present in an area including a specific section, vehicle information, which is information regarding the size of the vehicle, is acquired from an on-board device mounted on the vehicle; determining whether or not the vehicle is capable of passing through the specific section based on the vehicle information and road information that is information regarding restrictions on the road in the specific section; transmitting passability information indicating whether the vehicle is permitted to pass through the specific section to the in-vehicle device; Information processing methods.

[0129] [Appendix 10] acquiring the vehicle information via a roadside device installed in the area; transmitting map information indicating the area and the passability information to the vehicle-mounted device via the roadside device; 10. The information processing method according to claim 9.

[0130] [Appendix 11] When it is determined that the vehicle is capable of passing through the specific section, and the difference between the size of the vehicle and the road constraint of the specific section is less than a predetermined value, transmitting the passability information including information to warn passengers about passing through the specific section to the vehicle-mounted device; 11. The information processing method according to claim 9 or 10.

[0131] [Appendix 12] transmitting the passability information, which is displayed in a different manner depending on a result of a determination as to whether the vehicle is permitted to pass through the specific section, to the vehicle-mounted device; 12. An information processing method according to any one of appendix 9 to 11.

[0132] [Appendix 13] The vehicle information includes information on the width and height of the vehicle, The road information includes at least one of information on the width and height of the road in the specific section. 13. An information processing method according to any one of appendix 9 to 12.

[0133] [Appendix 14] The vehicle information includes information on the weight of the vehicle, The road information includes information indicating a weight limit of the specific section of the road. An information processing method according to any one of appendixes 9 to 13.

[0134] [Appendix 15] Acquire the vehicle information and the location information from an on-board device of one or more vehicles present in the area; predicting an occurrence of a passing of vehicles in the specific section based on the position information; determining whether or not passing of vehicles is possible in the specific section; transmitting the predicted result of the occurrence of passing and the passability information indicating whether or not passing is possible to an on-board device of a vehicle present in the area; An information processing method according to any one of claims 9 to 14.

[0135] [Appendix 16] Identifying a point within the specific section where passing is possible; transmitting the passability information indicating the identified point to an on-board device of a vehicle present in the area; 16. An information processing method according to claim 15.

[0136] [Appendix 17] When a vehicle is present in an area including a specific section, a process of acquiring vehicle information, which is information related to the size of the vehicle, from an on-board device mounted on the vehicle; A process of determining whether or not the vehicle is capable of passing through the specific section based on the vehicle information and road information that is information regarding restrictions on the road in the specific section; and transmitting, to the vehicle-mounted device, passability information indicating whether the vehicle is permitted to pass through the specific section. program.

[0137] [Appendix 18] In the process of acquiring the vehicle information, the vehicle information is acquired via a roadside device installed in the area; In the process of transmitting, the map information indicating the area and the passability information are transmitted to the vehicle-mounted device via the roadside device. 18. The program according to claim 17.

[0138] [Appendix 19] When it is determined that the vehicle is capable of passing through the specific section, and the difference between the size of the vehicle and the road constraint of the specific section is less than a predetermined value, In the transmitting process, the passability information including information for calling attention to passing through the specific section is transmitted to the vehicle-mounted device. 19. The program according to claim 17 or 18.

[0139] [Appendix 20] In the transmitting process, the passability information is displayed in a different manner depending on a result of a determination as to whether the vehicle is passable through the specific section, and the passability information is transmitted to the vehicle-mounted device. 20. A program according to any one of appendix 17 to 19.

[0140] [Appendix 21] The vehicle information includes information on the width and height of the vehicle, The road information includes at least one of information on the width and height of the road in the specific section. A program according to any one of appendixes 17 to 20.

[0141] [Appendix 22] The vehicle information includes information on the weight of the vehicle, The road information includes information indicating a weight limit of the specific section of the road. 22. A program according to any one of appendices 17 to 21.

[0142] [Appendix 23] Further execute the prediction process, In the acquiring process, the vehicle information and the position information are acquired from an on-board device of one or more vehicles present in the area; In the prediction process, a prediction is made of an occurrence of a passing of vehicles in the specific section based on the position information; In the process of determining, it is determined whether or not passing of vehicles is possible in the specific section; In the transmission process, the predicted result of the occurrence of passing and the passability information indicating whether or not passing is possible are transmitted to an on-board device of a vehicle present in the area. A program according to any one of appendixes 17 to 22.

[0143] [Appendix 24] In the process of determining, a point in the specific section where passing is possible is identified; In the transmitting process, the passability information indicating the identified point is transmitted to an on-board device of a vehicle present in the area. 24. The program according to claim 23.

[0144] [Appendix 25] an information transmitting means for transmitting vehicle information, which is information regarding the size of the vehicle in which the vehicle is mounted, to the information processing device; an information acquisition means for acquiring passability information indicating whether the vehicle is permitted to pass through a specific section from the information processing device; and an output control means for outputting the passability information. Onboard equipment.

[0145] [Appendix 26] A measuring means is provided for measuring the position information of the aircraft itself; the information acquisition means, when the vehicle is present in an area including the specific section, acquires map information indicating the area from the information processing device; The output control means outputs the map information on which the position information is superimposed and the passability information. 26. An on-board device as described in Appendix 25.

[0146] [Appendix 27] When the passability information indicates that the vehicle is not permitted to pass through the specific section, the output control means outputs the passability information in an emphasized manner compared to when the passability information indicates that the vehicle is permitted to pass through the specific section. 27. The vehicle-mounted device according to claim 25 or 26. [Explanation of symbols]

[0147] 100, 101 Information processing device 110, 111 Acquisition Department 120, 121 Judgment section 130, 131 Transmitter 140 Prediction Department 200 Onboard equipment 210 Measurement Division 220 Information Transmission Department 230 Information Acquisition Department 240 Output control section 300 Roadside unit 310 Communications Department 1000, 1001 Navigation Assistance System

Claims

1. an acquisition means for acquiring vehicle information, which is information relating to the size of the vehicle, from an on-board device mounted on the vehicle when the vehicle is present in an area including a specific section; a determination means for determining whether or not the vehicle is capable of passing through the specific section based on the vehicle information and road information that is information regarding restrictions on the road in the specific section; a transmitting means for transmitting passability information indicating whether the vehicle is permitted to pass through the specific section to the vehicle-mounted device, Information processing device.

2. The acquisition means acquires the vehicle information via a roadside unit installed in the area, The transmitting means transmits map information indicating the area and the passability information to the vehicle-mounted device via the roadside device. The information processing device according to claim 1 .

3. When it is determined that the vehicle is capable of passing through the specific section, and the difference between the size of the vehicle and the road constraint of the specific section is less than a predetermined value, The transmitting means transmits the passability information including information to warn the driver about passing through the specific section to the vehicle-mounted device. The information processing device according to claim 1 .

4. The transmitting means transmits to the vehicle-mounted device the passability information, the passability information being displayed in a different manner depending on a result of a determination as to whether the vehicle is passable through the specific section. The information processing device according to claim 1 .

5. The vehicle information includes information on the width and height of the vehicle, The road information includes at least one of information on the width and height of the road in the specific section.

5. The information processing device according to claim 1.

6. The vehicle information includes information on the weight of the vehicle, The road information includes information indicating a weight limit of the specific section of the road.

5. The information processing device according to claim 1.

7. Further comprising a prediction means, The acquisition means acquires the vehicle information and the position information from an on-board device of one or more vehicles present in the area, The prediction means predicts an occurrence of a passing of vehicles in the specific section based on the position information, The determination means determines whether or not passing of vehicles is possible in the specific section, The transmitting means transmits the predicted result of the occurrence of passing and the passability information indicating whether or not passing is possible to an in-vehicle device of a vehicle present in the area. The information processing device according to claim 1 .

8. The determination means identifies a point within the specific section where passing is possible, The transmitting means transmits the passability information indicating the identified point to an on-board device of a vehicle present in the area. The information processing device according to claim 7.

9. When a vehicle is present in an area including a specific section, vehicle information, which is information regarding the size of the vehicle, is acquired from an on-board device mounted on the vehicle; determining whether or not the vehicle is capable of passing through the specific section based on the vehicle information and road information that is information regarding restrictions on the road in the specific section; transmitting passability information indicating whether the vehicle is permitted to pass through the specific section to the in-vehicle device; Information processing methods.

10. When a vehicle is present in an area including a specific section, a process of acquiring vehicle information, which is information related to the size of the vehicle, from an on-board device mounted on the vehicle; A process of determining whether or not the vehicle is capable of passing through the specific section based on the vehicle information and road information that is information regarding restrictions on the road in the specific section; and transmitting, to the vehicle-mounted device, passability information indicating whether the vehicle is permitted to pass through the specific section. program.

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