Vehicle movement support device

Abstract

To provide a vehicle movement support device capable of providing route guidance again at the request of a user when there is no passable route for the vehicle. [Solution] The vehicle movement support device 1 includes an input unit 3 for inputting the departure point, the destination, and vehicle identification information of the vehicle to be used, a road information acquisition unit 6 for searching for a route and acquiring road information for this route, a vehicle information acquisition unit 7 for acquiring vehicle information for the vehicle to be used, a comparison unit 8 for comparing the road information for the route with the vehicle information for the vehicle to be used and outputting a first comparison result, a determination unit 10 for outputting a first passable determination or a first impassable determination that there is an impassable section based on the first comparison result, and an output unit 4 for outputting the corresponding route when the determination unit 10 outputs the first passable determination, and for outputting a question regarding the action desired by the user when the determination unit 10 outputs the first impassable determination.

Description

[Technical field]

[0001] The present invention relates to a vehicle movement assistance device that supports vehicle movement by comparing vehicle information with road information and guiding a passable route for the vehicle. [Background technology]

[0002] Conventionally, when a vehicle moves, a route guidance device that guides the vehicle to the shortest route or the route with the lowest toll among multiple routes from the destination to the starting point is often used. However, this route guidance device is assumed to be used exclusively by ordinary cars, and does not fully consider road information such as road width, bridge and overpass height. For example, for vehicles such as large cranes and trucks, the route that is guided is actually impassable, and a situation occurs in which the vehicle cannot reach the destination. In recent years, therefore, technologies have been developed that enable route searches that take into account the attributes of roads and structures, the size of vehicles, and the like, and inventions relating to these technologies have already been disclosed.

[0003] Patent Document 1 discloses an invention entitled "Navigation Device" that relates to a navigation device that searches for and provides guidance on routes that a vehicle can travel. The invention disclosed in Patent Document 1 is characterized by comprising an input means for inputting information including a destination, a storage means for storing road information necessary for route search and route guidance, a vehicle information acquisition means for acquiring vehicle information necessary for extracting drivable roads, a route search means for extracting drivable roads based on the vehicle information acquired by the vehicle information acquisition means and the road information stored in the storage means and searching for a route to the destination inputted by the input means using the extracted drivable roads, and a route guidance means for providing route guidance according to the route searched for by the route search means. In the invention having such characteristics, route search and route guidance are performed based on vehicle information and road data, so that possible routes can be searched for and guidance can be provided according to the vehicle, thus eliminating the problem that the navigation device may provide guidance on impossible or inappropriate routes depending on the type of vehicle. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 8-278157 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the invention disclosed in Patent Document 1 does not mention the output when a drivable route is not found. In this case, if no guidance is provided to the user, the vehicle user may become dissatisfied without knowing the reason why the vehicle cannot reach the destination, or may give up easily. In addition, the user must input vehicle information such as the overall length and width of the vehicle by himself / herself. Therefore, the operation for this input may become cumbersome.

[0006] The present invention has been made in response to such conventional circumstances, and aims to provide a vehicle movement support device that can output routes that the vehicle can travel, and can also provide route guidance again at the user's request if there is no route that the vehicle can travel. [Means for solving the problem]

[0007] In order to achieve the above object, the first invention is characterized in that it comprises an input unit for inputting a starting point, a destination, and vehicle identification information that identifies a vehicle used by a user; a road information acquisition unit for searching for a route from the starting point to the destination using road information associated with location information and acquiring road information for this route; a vehicle information acquisition unit for acquiring vehicle information for the vehicle used from the vehicle information associated with the vehicle identification information; a comparison unit for comparing the road information for the route with the vehicle information for the vehicle used from the vehicle information associated with the vehicle identification information and outputting a first comparison result; a determination unit for determining whether or not there are any impassable sections on the route where the vehicle used is impassable based on the first comparison result, and outputting a first passable determination that there are no impassable sections, or a first impassable determination that there are impassable sections; and an output unit for outputting the relevant route when the determination unit outputs the first passable determination, and for outputting a question regarding the user's desired action when the determination unit outputs the first impassable determination.

[0008] In the invention having such a configuration, the location information is, for example, latitude and longitude, and the road information is, for example, road width, nodes indicating intersections and points where road structure changes, links indicating roads, etc. The vehicle identification information may be, for example, the model of the vehicle. The vehicle information may be, for example, the width, height, and total weight of the vehicle. In the invention having the above configuration, when a starting point and a destination are input to the input unit, the road information acquisition unit searches for a route corresponding to each of the position information of the starting point and the destination using road information associated with the position information. Furthermore, the road information acquisition unit acquires road information about the searched route.

[0009] Furthermore, when vehicle identification information is input to the input unit, the vehicle information acquisition unit acquires vehicle information about the vehicle to be used. Then, the comparison unit compares, for example, the road width along the route from the departure point to the destination with the vehicle width of the vehicle to be used, and outputs a first comparison result at least once. In this example, the first comparison result is that the vehicle width is narrower than the road width, or the vehicle width is equal to or larger than the road width.

[0010] Furthermore, in the above example, if the comparison result indicates that the vehicle width for one or more points along the route is all narrower than the road width, the determination unit outputs a first passability determination that there are no impassable points. In this case, the output unit outputs the corresponding route, i.e., the route for which the first passability determination has been output. This ends the processing of the vehicle movement support device. On the other hand, when the comparison result indicates that the vehicle width is equal to or greater than the road width for one or more points of position information on the route, the determination unit outputs a first impassability determination that there is an impassable point. In this case, the output unit outputs a question about the action the user desires to take. Examples of such a question include whether to end the determination of whether there are any impassable areas for the vehicle in use, whether to determine whether there are any impassable areas for another route, and whether to change the vehicle in use to a small vehicle.

[0011] The second invention is characterized in that, in the first invention, the question is whether the vehicle to be used can be changed to a small vehicle that is smaller than the vehicle to be used, and the user's answer to the question is input into the input unit, and if the answer is that the vehicle to be used will be changed to a small vehicle, small vehicle identification information that identifies the small vehicle is input into the input unit as vehicle identification information.

[0012] In the invention having such a configuration, in addition to the function of the first invention, when the small vehicle identification information is input to the input unit as the vehicle identification information, the vehicle information acquisition unit acquires the small vehicle information. Thereafter, the comparison unit compares the road information about the route with the small vehicle information and outputs the comparison result. Then, the determination unit determines whether there is an impassable portion on the route where small vehicles cannot pass, based on the comparison result, and outputs a first passable determination or a first impassable determination. The output unit similarly outputs a route where small vehicles can pass, or outputs a question about a course of action desired by the user. This question is repeatedly output when there is an impassable portion where small vehicles cannot pass.

[0013] The third invention is characterized in that, in the first invention, the question is whether the vehicle to be used can be changed to a smaller vehicle than the vehicle to be used, and the user's answer to the question is input into the input unit, and if the answer is not to change the vehicle to be used to a smaller vehicle, the output unit outputs location information corresponding to the impassable area. In such an invention, since the impassable location is any one of a plurality of pieces of position information on the route, the output unit can output the position information of the impassable location. Thus, in the second invention, in addition to the first invention, the processing of the vehicle movement support device is terminated by outputting the impassable location. Furthermore, the output unit may output the comparison result by the comparison unit in addition to the impassable location.

[0014] A fourth invention, in the first or second invention, is characterized in that it includes a calculation unit that calculates an angle between a first and a second intersecting road that constitute an intersection on the route, the angle being calculated based on position information of the intersection, position information of a first node located at the first intersecting road, and position information of a second node located at the second intersecting road, the comparison unit compares the angle with a predetermined intersection angle and outputs a second comparison result, the determination unit determines whether there is an intersection on the route at which the vehicle is impassable based on the second comparison result, and outputs a second passable determination that there is no impassable intersection, or a second impassable determination that there is an impassable intersection, the output unit outputs the corresponding route when the determination unit outputs the first passable determination and the second passable determination, and when the determination unit outputs the second impassable determination, the output unit outputs position information corresponding to the impassable intersection.

[0015] In such an invention, the intersection and its position information, the first intersecting road and its position information, and the second intersecting road and its position information are included in the road information. The calculation unit calculates the angle using the position coordinates of the intersection and the first and second intersecting roads, for example, by utilizing the inner product or magnitude of vectors. In the invention having the above configuration, in addition to the functions of the first or second invention, the calculation unit calculates the angle between the first and second intersecting roads at least once for an intersection on the route, and outputs the calculation result. Also, a right angle, for example, is given as the intersection angle in advance. In this example, the second comparison result output by the comparison unit is, for example, that the angle is equal to or greater than a right angle, or that the angle is smaller than a right angle.

[0016] Then, the determination unit outputs, based on a result of the second comparison, a second passable determination that there is no impassable intersection, or a second impassable determination that there is an impassable intersection. Furthermore, the output unit outputs the corresponding route, i.e., the route for which the first passable judgment and the second passable judgment have been output, only when the judgment unit outputs the first passable judgment and the second passable judgment. Also, when the judgment unit outputs the second impassable judgment, the output unit outputs position information corresponding to the impassable intersection. Therefore, in these cases, the processing of the vehicle movement support device is terminated. In addition, when the determination unit outputs the first impassability determination, the output unit outputs a question about the action the user desires, as in the first aspect of the invention. In this case, the process of the vehicle movement support device continues. Effect of the Invention

[0017] According to the first aspect of the present invention, the comparison unit outputs a comparison result for one or more pieces of position information along the route, so that the determination unit can determine in detail whether there are any impassable points on the route. Therefore, the route output by the output unit takes road information into sufficient consideration, and it is possible to prevent a situation in which the guided route is actually impassable and the destination cannot be reached. In addition, when the first impassability determination is output, a question is output as to the user's desired course of action, and depending on the answer to this question, the user can continue to use the vehicle movement support device. This reduces the risk that the user will easily give up on reaching the destination. Furthermore, routes that the vehicle can travel are output simply by inputting the departure point, destination, and vehicle identification information, so input operations are simple and the system is easy to use.

[0018] According to the second invention, in addition to the effects of the first invention, the determination unit determines whether there is an impassable section where a small vehicle cannot pass, so that the user can know in advance whether or not the user can reach the destination when using a small vehicle. Also, when there is an impassable section where a small vehicle cannot pass, the question is repeatedly output, so that the possibility of reaching the destination can be increased compared to when there is no such case.

[0019] According to the third invention, in addition to the effects of the first invention, the user can know the location information of the impassable area, so that it is expected that the user can understand the determination result that the destination cannot be reached. Also, in the case where the comparison result by the comparison unit is output, the user can know the reason why the destination cannot be reached, so that it is expected that the user can understand further.

[0020] According to the fourth invention, in addition to the effects of the first or second invention, the output unit outputs the corresponding route only when the determination unit outputs the first passable determination and the second passable determination, so that the route takes into consideration the shape of the intersection in addition to the road width, etc., and thus the user can know with more accuracy whether or not the vehicle in use can reach the destination. [Brief description of the drawings]

[0021] [Figure 1] 1 is a configuration diagram of a vehicle movement support device according to an embodiment. [Diagram 2] 4 is a flow diagram showing the processing steps of a vehicle movement support method executed by the vehicle movement support device according to the embodiment. FIG. [Diagram 3] 4 is a flow diagram showing the processing steps of a vehicle movement support method executed by the vehicle movement support device according to the embodiment. FIG. [Figure 4] 4 is a conceptual diagram for explaining an angle calculation method executed by a calculation unit. FIG. [Diagram 5] 4 is a flow chart showing the processing steps of an angle calculation method executed by a calculation unit. FIG. [Figure 6] 13 is a processing result of a vehicle movement support method executed by the vehicle movement support device. [Figure 7] 13 is a processing result of a vehicle movement support method executed by the vehicle movement support device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS EXAMPLES

[0022] A vehicle movement support device according to an embodiment of the present invention will be described in detail with reference to Fig. 1 to Fig. 7. Fig. 1 is a configuration diagram of a vehicle movement support device according to an embodiment. As shown in Fig. 1, a vehicle movement support device 1 according to the embodiment is a vehicle movement support device that supports the movement of a vehicle used by a user, and is a computer incorporating a communication unit 2, an input unit 3, an output unit 4, a control unit 5, and a storage unit 11. Of these, the control unit 5 controls all operations of the vehicle movement support device 1, and includes a road information acquisition unit 6, a vehicle information acquisition unit 7, a comparison unit 8, a calculation unit 9, and a determination unit 10. In this application, a user refers to a driver who drives a vehicle to be used, as well as a person who gives work instructions and information to the driver.

[0023] Furthermore, the vehicle movement support device 1 is configured to be able to communicate bidirectionally with a user's terminal 51, a road information storage unit 52 that stores road information, and a vehicle information storage unit 53 that stores vehicle information, via the communication unit 2 and the network 50. The road information is associated with location information, and the vehicle information is associated with vehicle identification information. The vehicle movement support device 1 may be installed in a vehicle to be used, or in a vehicle or building other than the vehicle to be used. Specifically, a smartphone, tablet, personal computer, or the like is used as the terminal 51 of the vehicle movement support device 1, and the terminal 51 is provided with a display screen 51a. Specifically, a server is used as the road information storage unit 52 and the vehicle information storage unit 53, and the road information storage unit 52 and the vehicle information storage unit 53 may be built into the vehicle movement support device 1. Each component of the vehicular movement support device 1 will be described below.

[0024] The input unit 3 receives inputs of the departure point, the destination, vehicle identification information for identifying the vehicle used by the user, as well as responses from the user. The vehicle may be, for example, a large vehicle, a medium-sized or small-sized crane, a truck, or a regular car. In addition, the vehicle identification information may be, for example, the type written on the vehicle inspection certificate. Furthermore, as will be described later, the output unit 4 outputs routes that the vehicle can take and questions about the action the user desires, depending on the contents of the determination by the determination unit 10.

[0025] The road information acquisition unit 6 searches for a route from the departure point to the destination input from the input unit 3, using the road information associated with the location information stored in the road information storage unit 52. This search is performed by a known method. Then, the road information acquisition unit 6 acquires road information about the searched route. Here, the location information is, for example, latitude and longitude. The road information is the road width, the vertical height from the road surface to structures located vertically above, the limit load, nodes on the road, links connecting the nodes, etc., and is stored in the road information storage unit 52 as numerical values, points, and lines corresponding to the location information. The road information storage unit 52 also stores map information including information on features such as roads, mountains, rivers, forests, and buildings. This map information is associated with the location information of the road information.

[0026] The vehicle information acquisition unit 7 acquires vehicle information about the vehicle to be used from the vehicle information associated with the vehicle identification information stored in the vehicle information storage unit 53. The vehicle information is, for example, the vehicle width, vehicle height, total weight, etc., and is stored in the vehicle information storage unit 53 as a numerical value corresponding to the vehicle identification information.

[0027] The comparison unit 8 compares the road information about the route acquired by the road information acquisition unit 6 with the vehicle information about the vehicle to be used acquired by the vehicle information acquisition unit 7, and outputs a first comparison result. The calculation unit 9 also calculates an angle θ (where 0 degrees<angle θ<180 degrees) between the first and second intersecting roads that constitute the intersection on the route acquired by the road information acquisition unit 6. This calculation method will be described in detail with reference to Figs. 4 and 5. Therefore, the comparison unit 8 compares the angle θ between the first and second intersecting roads calculated by the calculation unit 9 with a predetermined intersection angle, and outputs a second comparison result.

[0028] The determination unit 10 determines whether or not there is an impassable section on the route where the vehicle cannot pass, based on the first comparison result by the comparison unit 8. Then, the determination unit 10 outputs a first passable determination that there is no impassable section, or a first impassable determination that there is an impassable section. In addition, the determination unit 10 determines whether or not there is an intersection on the route that is impassable to the vehicle, based on a second comparison result by the comparison unit 8. Then, the determination unit 10 outputs a second passable determination that there is no impassable intersection, or a second impassable determination that there is an impassable intersection.

[0029] The memory unit 11 stores the first and second comparison results by the comparison unit 8, the calculation results by the calculation unit 9, the determination of the presence or absence of impassable areas by the determination unit 10, as well as all output results output in each processing step of the vehicle movement support device 1.

[0030] Next, a vehicle movement support method executed by the vehicle movement support device 1 will be described with reference to Fig. 2 and Fig. 3. Fig. 2 and Fig. 3 are each a flow chart showing processing steps of the vehicle movement support method executed by the vehicle movement support device according to the embodiment. 2 and 3, the vehicle movement support method 20 includes a step of inputting a starting point, etc. in S1 to a step of outputting impassable locations in S12. Each step will be described below.

[0031] As shown in FIG. 2, the departure point etc. input step S1 is a step in which the departure point and destination input by the user on the display screen 51a are input to the input unit 3 via the network 50 and the communication unit 2. The vehicle identification information input step of S2 is a step in which the vehicle identification information of the vehicle to be used is input to the input unit 3 via the network 50 and the communication unit 2. The input departure point, destination, and vehicle identification information are stored in the memory unit 11.

[0032] The road information acquisition step of S3 is a step in which the road information acquisition unit 6 searches for and determines a route from the input starting point to the destination based on road information associated with the position information. The starting point and the destination are recognized by the road information acquisition unit 6 as latitude (degrees) and longitude (degrees), respectively. Furthermore, the road information acquisition unit 6 acquires road information for the determined route. The determined route and its road information are stored in the memory unit 11.

[0033] The angle calculation step of S4 is a step in which the calculation unit 9 calculates the angle θ. This angle θ is calculated based on the position information of the intersection, the position information of a first node located on a first intersecting road, and the position information of a second node located on a second intersecting road. Each piece of position information is expressed in latitude (degrees) and longitude (degrees).

[0034] In the vehicle information acquisition step of S5, the vehicle information acquisition unit 7 acquires vehicle information (e.g., vehicle width, vehicle height) about the model of the vehicle to be used from the vehicle information associated with the vehicle identification information. The acquired vehicle information is stored in the storage unit 11. However, the vehicle information acquisition step of S5 may be performed between the vehicle identification information input step of S2 and the road information acquisition step of S3.

[0035] The first comparison step of S6 is a step in which the comparison unit 8 compares road information about the route with vehicle information about the vehicle to be used and outputs a first comparison result. The road information used in this step is specifically the road width d and the vertical height h along the vertical direction from the road surface to structures (bridges, overpasses, tunnel ceilings, etc.) that exist vertically above. Therefore, the vehicle information to be compared with the road width d and vertical height h is the vehicle width D and vehicle height H of the vehicle to be used. Then, the comparison unit 8 outputs as a first comparison result whether or not (a) the vehicle width D is smaller than the road width d, and (b) the vehicle height H is lower than the vertical height h. If the first comparison result is (a) and (b), the determination unit 10 outputs a first passable determination. After that, the second comparison step of S7 is executed.

[0036] On the other hand, when the first comparison result is neither (a) nor (b), that is, when at least one of (a) the vehicle width D is not smaller than the road width d and (b) the vehicle height H is not lower than the vertical height h is satisfied, the determination unit 10 outputs a first impassability determination. Then, the inquiry process of S9 is executed. The questioning step of S9 is a step in which the output unit 4 outputs a question to the user. This question is whether or not the vehicle to be used can be changed to a smaller vehicle than the vehicle to be used, and is transmitted by the communication unit 2 to the terminal 51 via the network 50. The transmitted question is displayed on the display screen 51a, and the user can input an answer to the question on the display screen 51a and reply.

[0037] The second comparison step of S7 is a step in which the comparison unit 8 compares the angle θ with a predetermined intersection angle φ and outputs a second comparison result. Specifically, the predetermined intersection angle φ is a right angle. Therefore, the comparison unit 8 outputs, as the second comparison result, whether the angle θ is a right angle, an obtuse angle, or an acute angle. When the angle θ is a right angle or an obtuse angle, the determination unit 10 outputs a second passability determination that there is no impassable intersection. Therefore, the determination unit 10 outputs the first passability determination and the second passability determination, and thus the route output step of S8 is executed. The route output step of S8 is a step in which the output unit 4 outputs a route that the vehicle can travel. The output route is displayed on the display screen 51a by the communication unit 2 transmitting it to the terminal 51 via the network 50. After this step, the vehicle movement support method 20 ends.

[0038] On the other hand, if the angle θ is an acute angle, the determination unit 10 outputs a second impassability determination that there is an impassable intersection. After this, the impassable intersection output step of S10 is executed. The impassable intersection output step of S10 is a step in which the output unit 4 outputs position information corresponding to an impassable intersection. The output intersection position information is transmitted by the communication unit 2 to the terminal 51 via the network 50, and is displayed on the display screen 51a. Then, after this step, the vehicle movement support method 20 ends.

[0039] As shown in FIG. 3, the answer recognition step S11, which is executed immediately after the questioning step S9, is a step in which, after the user's answer to the question is input to the input unit 3, the judgment unit 10 recognizes whether or not this answer indicates that the vehicle to be used is to be changed to a small vehicle. When the determination unit 10 recognizes that the answer indicates that the vehicle to be used will be changed to a small vehicle, the output unit 4 outputs a message requesting the user to input small vehicle identification information that identifies the small vehicle. Thereafter, the small vehicle identification number that the user inputs on the display screen 51a in response to the message is input as vehicle identification information to the input unit 3. This causes the vehicle identification information input step S2 to be executed again. Thereafter, at least the vehicle information acquisition step S5 and the first comparison step S6 are repeated. However, the starting point input step S1, the road information acquisition step S3, the angle calculation step S4, the second comparison step S7, and the impassable intersection output step S10, which have already been executed, are not repeated.

[0040] On the other hand, when the determination unit 10 recognizes that the response does not indicate that the vehicle to be used is to be changed to a small vehicle, the impassable area output step of S12 is executed. In the impassable portion output step of S12, the output unit 4 outputs position information corresponding to the impassable portion for the vehicle to be used. The output position information is transmitted by the communication unit 2 to the terminal 51 via the network 50, and is displayed on the display screen 51a. Then, after this step, the vehicle movement support method 20 ends.

[0041] Next, the angle calculation method executed in the angle calculation step S4 will be described with reference to Figures 4 and 5. Figure 4 is a conceptual diagram for explaining the angle calculation method executed by the calculation unit. As shown in FIG 4, at the intersection 60, a first cross road R1 and a second cross road R2 cross each other at an angle θ. A and node N indicating intersection 60 B Pass through node N A to node N B The vector pointing to node N is the first vector AB. B and a second node N on a second crossroad R2 C Pass through node N B to the second node N C The vector pointing to the node N on the surface of the earth is the second vector BC. A ~N C The two-dimensional coordinates (latitude (degrees), longitude (degrees)) of are A(x1,y1), B(x2,y3), and C(x3,y3), respectively. Therefore, the angle θ is the angle between the first vector AB and the second vector BC. However, the angle θ can range from greater than 0 degrees to less than 180 degrees. In addition, it is assumed that the user vehicle 61 enters the intersection 60 along a first vector AB and leaves the intersection 60 along a second vector BC. Also, the symbol N on the first cross road R1 and the second cross road R2 corresponds to the node N A ~N C It is a node other than.

[0042] Next, the steps of the angle calculation method will be described with reference to Fig. 5. Fig. 5 is a flow diagram showing the processing steps of the angle calculation method executed by the calculation unit. 5, the angle calculation method 30 includes a unit conversion step S4-1 to an angle calculation step S4-4. Each step will be described below. In the unit conversion step S4-1, the calculation unit 9 converts the node N A ~N CThis is a process of converting the unit of the two-dimensional coordinates in latitude and longitude coordinates of the node N from decimal (degrees) to the International System of Units (rad). A ~N C The two-dimensional coordinate values ​​are converted to radians by multiplying them by (π / 180).

[0043] In the two-dimensional coordinate conversion process of S4-2, the calculation unit 9 converts the node N A ~N C This is the process of converting two-dimensional coordinates (x(rad), y(rad)) in latitude and longitude coordinates into two-dimensional coordinates (x(m), y(m)) in the Mercator projection. Specifically, x(m) is calculated using equation (1), and y(m) is calculated using equation (2). Here, φ is the latitude, λ is the longitude, and R is the radius of the Earth.

[0044]

number

[0045]

number

[0046] In the step of calculating the inner product etc. in S4-3, the calculation unit 9 calculates the inner product etc. of the node N A ~N C This is a process of calculating the inner product and magnitude of vector AB and vector BC using the two-dimensional coordinates (x(m), y(m)). The inner product of vector AB and vector BC is calculated using equation (3), and the magnitudes of vector AB and vector BC are calculated using equations (4) and (5), respectively.

[0047]

number

[0048]

number

[0049]

number

[0050] The angle calculation step of S4-4 is a step in which the calculation unit 9 calculates the cosine of the angle θ using equation (6), and calculates the angle θ (rad) using the inverse function of this cosine, equation (7). The calculated angle θ (rad) is converted to a decimal angle (degrees) and then stored in the memory unit 11, and is used in the second comparison step of S7.

[0051]

number

[0052]

number

[0053] Furthermore, the processing results of the vehicle movement support method will be described with reference to Fig. 6 and Fig. 7. Fig. 6 shows the processing results of the vehicle movement support method executed by the vehicle movement support device when a route that is passable by the vehicle being used is output. Fig. 7 shows the processing results of the vehicle movement support method executed by the vehicle movement support device when an impassable location on the route is output. 6, the processing result of the vehicle movement support method 20 is displayed on the display screen 51a of the terminal 51. This processing result is the result of executing the starting point input step S1 to the route output step S8, and shows the starting point S and destination G input by the user, a route K that the vehicle in use can take, map information, and a message saying "Route K is passable." The message “Route K is passable” is based on the first passable determination and the second passable determination made by the determining unit 10 .

[0054] Next, Fig. 7 shows the results of executing the step of inputting the starting point etc. in S1 to the second comparison step in S7, and the step of outputting the impassable intersection in S10. Fig. 7 shows the starting point S, the destination G, the route K that is impassable for the vehicle to be used, map information, and a message that reads "Route K is impassable" and "Reason: There is an impassable intersection (x)." The former message is based on the determination unit 10 outputting a second passable determination, and the latter message is based on the output unit 4 outputting position information corresponding to an impassable intersection.

[0055] As described above, according to the vehicle movement support device 1, the user can know the routes that the vehicle in use can take simply by inputting the destination and vehicle identification information in the starting point input step S1 and the vehicle identification information input step S2 of the vehicle movement support method 20. Therefore, the operation for inputting the necessary information is simple and the device is easy to use. In addition, since the vehicle movement support device 1 can be installed in a building other than the vehicle to be used, a user other than the driver can search for a passable route in advance before the driver actually starts the vehicle to be used. Therefore, it is possible to solve the conventional problem of finding that a route is impassable after the driving work has started, and to complete the driving work smoothly.

[0056] Furthermore, according to the vehicle movement support device 1, when the determination unit 10 outputs the first impassable determination, the questioning step S9 is executed to determine whether or not there is a passable route for a small vehicle, so that the route can be repeatedly searched according to the user's wishes. This reduces the number of cases where the user gives up on reaching the destination easily, which is expected to contribute to the acceptance and completion of work orders. In addition to the vehicle information, in the second comparison step of S7, the angle θ of the intersection on the route is taken into account, and this angle θ is determined by the intersection angle θ of the node N A ~N C Since the calculation is performed using the position information of the vehicle, the user can know with greater accuracy whether or not the vehicle will be able to reach the destination.

[0057] The vehicle movement support device according to the present invention is not limited to the one shown in the embodiment. For example, the vehicle movement support device 1 may not include the calculation unit 9. In this case, the angle calculation step S4 and the second comparison step S7 of the vehicle movement support method 20 are omitted. In addition, in the first comparison step S6 of the vehicle movement support method 20, the comparison unit 8 may compare at least one of the road information such as the road width, the vertical height to the structure, and the limit load with the vehicle information (vehicle width, vehicle height, total weight) corresponding to this road information. Furthermore, the output unit 4 may or may not output the first comparison result and the second comparison result by the comparison unit 8. [Industrial Applicability]

[0058] The present invention can be used as a vehicle movement assistance device that assists the movement of a vehicle. [Explanation of symbols]

[0059] 1... Vehicle movement support device 2... Communication unit 3... Input unit 4... Output unit 5... Control unit 6... Road information acquisition unit 7... Vehicle information acquisition unit 8... Comparison unit 9... Calculation unit 10... Determination unit 11... Storage unit 20... Vehicle movement support method 30... Angle calculation method 50... Network 51... Terminal 51a... Display screen 52... Road information storage unit 53... Vehicle information storage unit 60... Intersection 61... Vehicle in use

Claims

1. an input unit for inputting a departure point, a destination, and vehicle identification information for identifying a vehicle to be used by a user; a road information acquisition unit that searches for a route from the departure point to the destination using road information associated with the location information and acquires the road information for the route; a vehicle information acquisition unit that acquires the vehicle information about the vehicle to be used from vehicle information associated with the vehicle identification information; a comparison unit that compares the road information about the route with the vehicle information about the vehicle to be used and outputs a first comparison result; a determination unit that determines whether or not there is an impassable section on the route where the user vehicle cannot pass based on a result of the first comparison, and outputs a first passable determination that there is no impassable section, or a first impassable determination that there is an impassable section; an output unit configured to output the route when the determination unit outputs the first passable determination, and to output a question regarding a course of action desired by the user when the determination unit outputs the first impassable determination, The question is whether or not the vehicle to be used can be changed to a small vehicle smaller than the vehicle to be used, A vehicle movement assistance device characterized in that the user's answer to the question is input into the input unit, and if the answer is to change the vehicle to be used to the small vehicle, small vehicle identification information that identifies the small vehicle is input into the input unit as the vehicle identification information.

2. an input unit for inputting a departure point, a destination, and vehicle identification information for identifying a vehicle to be used by a user; a road information acquisition unit that searches for a route from the departure point to the destination using road information associated with the location information and acquires the road information for the route; a vehicle information acquisition unit that acquires the vehicle information about the vehicle to be used from vehicle information associated with the vehicle identification information; a comparison unit that compares the road information about the route with the vehicle information about the vehicle to be used and outputs a first comparison result; a determination unit that determines whether or not there is an impassable section on the route where the user vehicle cannot pass based on a result of the first comparison, and outputs a first passable determination that there is no impassable section, or a first impassable determination that there is an impassable section; an output unit configured to output the route when the determination unit outputs the first passable determination, and to output a question regarding a course of action desired by the user when the determination unit outputs the first impassable determination, The question is whether or not the vehicle to be used can be changed to a small vehicle smaller than the vehicle to be used, A vehicle movement support device characterized in that the user's answer to the question is input into the input unit, and if the answer is not to change the vehicle to be used to the small vehicle, the output unit outputs the location information corresponding to the impassable area.

3. a calculation unit that calculates an angle between a first intersecting road and a second intersecting road that constitute an intersection on the route; the angle is calculated based on the position information of the intersection, the position information of a first node located at the first cross road, and the position information of a second node located at the second cross road; the comparison unit, when the determination unit outputs the first passable determination, compares the angle with a predetermined intersection angle and outputs a second comparison result; the determination unit determines whether or not there is an intersection on the route at which the user vehicle is unable to pass, based on a result of the second comparison, and outputs a second passable determination that there is no impassable intersection, or a second impassable determination that there is an impassable intersection; The vehicle movement support device according to claim 1 or claim 2, characterized in that the output unit outputs the corresponding route when the determination unit outputs the first passable judgment and the second passable judgment, and outputs the location information corresponding to the impassable intersection when the determination unit outputs the first passable judgment and the second impassable judgment.

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