WO2023286716A1 - データベース生成方法、データベース生成装置、データベース生成プログラム、データ解析方法、データ解析装置及びデータ解析プログラム - Google Patents
データベース生成方法、データベース生成装置、データベース生成プログラム、データ解析方法、データ解析装置及びデータ解析プログラム Download PDFInfo
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- mobility
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- 238000007405 data analysis Methods 0.000 title claims description 21
- 230000037230 mobility Effects 0.000 claims description 350
- 238000004364 calculation method Methods 0.000 claims description 73
- 238000000605 extraction Methods 0.000 claims description 68
- 230000007613 environmental effect Effects 0.000 claims description 64
- 230000001133 acceleration Effects 0.000 claims description 55
- 238000004458 analytical method Methods 0.000 claims description 27
- 239000000284 extract Substances 0.000 claims description 8
- 238000004891 communication Methods 0.000 description 22
- 238000010586 diagram Methods 0.000 description 15
- 230000005540 biological transmission Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000010845 search algorithm Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- NAWXUBYGYWOOIX-SFHVURJKSA-N (2s)-2-[[4-[2-(2,4-diaminoquinazolin-6-yl)ethyl]benzoyl]amino]-4-methylidenepentanedioic acid Chemical compound C1=CC2=NC(N)=NC(N)=C2C=C1CCC1=CC=C(C(=O)N[C@@H](CC(=C)C(O)=O)C(O)=O)C=C1 NAWXUBYGYWOOIX-SFHVURJKSA-N 0.000 description 1
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/123—Traffic control systems for road vehicles indicating the position of vehicles, e.g. scheduled vehicles; Managing passenger vehicles circulating according to a fixed timetable, e.g. buses, trains, trams
- G08G1/127—Traffic control systems for road vehicles indicating the position of vehicles, e.g. scheduled vehicles; Managing passenger vehicles circulating according to a fixed timetable, e.g. buses, trains, trams to a central station ; Indicators in a central station
- G08G1/13—Traffic control systems for road vehicles indicating the position of vehicles, e.g. scheduled vehicles; Managing passenger vehicles circulating according to a fixed timetable, e.g. buses, trains, trams to a central station ; Indicators in a central station the indicator being in the form of a map
Definitions
- the present disclosure relates to technology for generating a database and technology for extracting predetermined data that satisfies extraction conditions from the database.
- Patent Literature 1 discloses that when the driving condition of a vehicle on a road not included in map information is acquired and it is determined that the driving condition satisfies a predetermined registration standard, it is possible to drive comfortably on the road on which the vehicle has traveled. It is disclosed that the road is determined to be present and added to the map information.
- the present disclosure has been made in order to solve the above problems, and provides a technique for generating a database that can collect information on comfort when traveling on roads within a predetermined area for each type of mobility. It is intended for
- a computer acquires state information indicating the types and positions of a plurality of mobilities traveling on one or more roads in a predetermined area, and , based on the state information, for each of the plurality of types of mobility, driving comfort indicating how comfortable it is to travel on each road with each type of mobility among the one or more roads is calculated, and a database is generated in which, for each of the one or more roads, the types of the plurality of mobilities are associated with the driving comfort when the mobilities of the respective types are driven on each road.
- FIG. 1 is a diagram showing the overall configuration of a mobility management system according to an embodiment of the present disclosure
- FIG. 2 is a schematic diagram for explaining a moving route of mobility
- It is a figure which shows an example of a structure of a server apparatus.
- It is a figure which shows the example which divided
- It is a figure which shows an example of link information.
- It which shows an example of area information.
- FIG. 4 is a flow chart for explaining a database generation operation of the server device; It is a figure which shows another example of a comfort database. It is a figure which shows another example of a comfort database. 4 is a flowchart for explaining data analysis operation of the server device;
- Light vehicles and motorized bicycles may be stipulated by law to run at the edge of the road at a lower speed than automobiles. In this case, light vehicles and motorized bicycles have many opportunities to slow down or change the direction of travel to avoid pedestrians and parked cars on the road. However, it is often not more comfortable to drive than a car.
- Patent Document 1 only roads where the driving condition of the vehicle satisfies a predetermined registration standard are added to the map information, and it is not possible to grasp the comfort of driving on the road for each vehicle type from this map information.
- a database generation method is a state in which a computer indicates the types and positions of a plurality of mobilities traveling on one or more roads in a predetermined area. Information is acquired, and based on the state information for each of the one or more roads, for each of the plurality of types of mobility, comfort when traveling on each road with each type of mobility is the one or more roads. , and for each of the one or more roads, the plurality of types of mobility and the driving comfort when traveling on each road with the type of mobility. and create a database that associates .
- a database is generated that associates a plurality of types of mobility with driving comfort when traveling on each road with the type of mobility. be done.
- the generated database it is possible to collect the driving comfort when driving on each road within a given area with a particular type of mobility.
- the state information further includes information indicating the time when the plurality of mobilities are running
- the calculation of the running comfort includes: For each of the one or more roads, based on the state information, the types of the plurality of mobilities and the driving comfort during the time period during which the plurality of mobilities were traveling are calculated
- generating the database includes: For each of one or more roads, the types of the plurality of mobilities, the time period during which the plurality of mobilities were traveling, and the driving comfort when traveling on each road with the type of mobility during the time period and may be associated with each other.
- this collected driving comfort it is possible to travel on each road with a relatively high degree of comfort among one or more roads in a predetermined area with a specific type of mobility at a specific time. can be grasped. As a result, when moving within a predetermined area during a certain time period, it is possible to grasp which type of mobility and which road should be used to move comfortably.
- the state information further includes information indicating an environment when the plurality of mobilities are traveling on the one or more roads, In calculating comfort, for each of the one or more roads, based on the state information, the types of the plurality of mobilities and the driving comfort in the environment when the plurality of mobilities are traveling are calculated; In generating the database, for each of the one or more roads, the types of the plurality of mobilities, the environment in which the plurality of mobilities were traveling, and driving on each road with the type of mobility in the environment and the driving comfort at the time of driving may be associated with each other.
- the collected driving comfort it is possible to determine the relative degree of comfort with which one or more roads in a given area can be driven on each road with a particular type of mobility in a particular environment. can grasp. As a result, when moving within a predetermined area in a certain environment, it is possible to grasp which type of mobility and which road should be used to move comfortably.
- the average speed when each type of mobility is traveling on each road, and the average speed when each type of mobility is traveling on each road The speed comfort is calculated based on the sample standard deviation of the speed when traveling, and the average angular velocity and average acceleration when each type of mobility is traveling on each road, and each type of mobility is
- the straight running comfort may be calculated based on sample standard deviations of angular velocity and acceleration when traveling on each road.
- the speed comfort based on the average speed when each type of mobility is traveling on each road the average value of indicators that indicate the straight line comfort based on the average angular velocity and average acceleration when each type of mobility is traveling on each road, and the environment when each type of mobility is traveling on each road.
- the driving comfort when driving on each road in which each type of mobility is included in each area may be calculated based on the environmental comfort based on the above.
- the average speed when each type of mobility is traveling on each road, and the average speed when each type of mobility is traveling on each road The speed comfort is calculated based on the sample standard deviation of the speed when traveling, and the average angular velocity and average acceleration when each type of mobility is traveling on each road, and each type of mobility is The straight running comfort is calculated based on the sample standard deviation of the angular velocity and acceleration when traveling on each road, and the average value of the index indicating the environment when each type of mobility is traveling on each road. , the sample standard deviation of the index indicating the environment when each type of mobility is traveling on each road, and the environmental comfort may be calculated based on.
- each type of mobility is traveling on each road at a speed equal to or lower than a predetermined lower limit speed.
- the driving comfort may be calculated based on information obtained by excluding the information indicating from the state information.
- a database generation device includes an acquisition unit that acquires state information indicating types and positions of a plurality of mobilities traveling on one or more roads in a predetermined area, and the one or more for each of the roads, based on the state information, for each of the plurality of types of mobility, the level of comfort when traveling on each road with each type of mobility is determined among the one or more roads. and a calculation unit that calculates the driving comfort shown in the figure, and for each of the one or more roads, associates the plurality of types of mobility with the driving comfort when traveling on each road with the type of mobility. and a generator for generating a database.
- a database generation program acquires state information indicating the types and positions of a plurality of mobilities traveling on one or more roads in a predetermined area, and For each of the plurality of types of mobility, based on the state information, driving comfort indicating how high the comfort level is when traveling on each road with each type of mobility among the one or more roads. and generating a database that associates, for each of the one or more roads, the plurality of types of mobility with the driving comfort when traveling on each road with the type of mobility. make your computer work.
- a data analysis method is a data analysis in a data analysis device that extracts at least one road that satisfies an extraction condition from the database generated by the database generation method according to (1) above.
- the method wherein the extraction condition includes a type of mobility and a condition for specifying the driving comfort when traveling on a road with the type of mobility, acquires the extraction condition, and satisfies the extraction condition.
- One road is extracted from the database, and analysis result information including the extracted at least one road is output.
- At least one road that satisfies the extraction conditions for specifying the type of mobility and the driving comfort when traveling on a road with that type of mobility is extracted from the database, and the analysis includes the at least one road. Result information is output. Therefore, from the analysis result information, it is possible to easily grasp at least one road on which the type of mobility specified by the extraction condition can travel in the predetermined area with the driving comfort specified by the extraction condition.
- the analysis result information includes each of the at least one road and each of the at least one road of the type of mobility specified by the extraction condition. may include a heat map representing the relationship between the driving comfort when driving
- a map is output. Therefore, from the heat map, it is possible to easily grasp the driving comfort when traveling on each of at least one road that satisfies the extraction conditions with the type of mobility specified by the extraction conditions.
- a data analysis device is a data analysis device that extracts at least one road that satisfies an extraction condition from the database generated by the database generation method according to (1) above.
- the extraction condition includes a condition for specifying the type of mobility and the driving comfort when traveling on a road with the type of mobility, a condition acquisition unit for acquiring the extraction condition, and the at least An extraction unit for extracting one road from the database, and an output unit for outputting analysis result information including the extracted at least one road.
- a data analysis program is a data analysis program that extracts at least one road that satisfies an extraction condition from the database generated by the database generation method according to (1) above.
- the extraction condition includes a condition for specifying the type of mobility and the driving comfort when traveling on a road with the type of mobility, the extraction condition is acquired, and the at least one road that satisfies the extraction condition is selected.
- a computer is operated to extract from the database and output analysis result information including the extracted at least one road.
- FIG. 1 is a diagram showing the overall configuration of mobility management system 100 according to an embodiment of the present disclosure. As shown in FIG. 1 , the mobility management system 100 includes mobility 1 , terminal device 2 and server device 3 .
- Mobility 1 includes, for example, large vehicles, ordinary vehicles, small vehicles, motorcycles (motorized bicycles), and light vehicles. Light vehicles include electrically assisted bicycles and bicycles. Mobility 1 is driven by a user. Mobility 1 moves from a starting point to a destination according to a user's instruction. Mobility 1 can stop at any place. The mobility 1 is communicably connected to the server device 3 via the network 5 .
- Network 5 is, for example, the Internet.
- the terminal device 2 is, for example, a smart phone, a tablet computer, or a personal computer, and is used by the user who gets on the mobility 1 and the administrator of the mobility management system 100.
- the terminal device 2 is connected to the server device 3 via the network 5 so as to be able to communicate with each other.
- the terminal device 2 transmits the extraction conditions to the server device 3, receives analysis result information from the server device 3, and presents the received analysis result information.
- the server device 3 is, for example, a web server.
- the server device 3 is an example of a database generation device and a data analysis device.
- the server device 3 receives various information from the mobility 1 and the terminal device 2 and transmits various information to the mobility 1 and the terminal device 2 .
- the server device 3 creates a database based on the information received from the mobility 1.
- the server device 3 also receives extraction conditions from the terminal device 2, extracts information that satisfies the received extraction conditions from the database, and transmits the extracted information to the terminal device 2 as analysis result information.
- the mobility 1, the terminal device 2, and the server device 3 are communicably connected to the public server 4 via the network 5.
- Public server 4 returns necessary public information in response to inquiries from mobility 1 , terminal device 2 and server device 3 .
- the public information includes, for example, information indicating the season corresponding to the specified date and time, information indicating the weather at the specified date and time, information indicating the date division of the specified date, and the like.
- the date segment is information indicating which day of the seven days of the week from Sunday to Saturday and which holiday it is.
- FIG. 2 is a diagram showing an example of the configuration of mobility 1 according to the embodiment of the present disclosure.
- the mobility 1 includes an input unit 11 , a processor 12 , a GPS (Global Positioning System) receiver 13 , a communication unit 14 , a drive unit 15 and a sensor 16 .
- GPS Global Positioning System
- the input unit 11 accepts the driving operation of the mobility 1 by the user.
- the GPS receiver 13 acquires the current position of the mobility 1.
- the current position is represented by latitude and longitude.
- the sensor 16 detects various speeds of the mobility 1.
- the sensor 16 includes a velocity sensor, an angular velocity sensor, and an acceleration sensor.
- a speed sensor detects the running speed of the mobility 1 .
- the angular velocity sensor detects the angular velocity of the mobility 1 about the longitudinal direction, that is, the angular velocity of the mobility 1 in the roll direction. Furthermore, the angular velocity sensor detects the angular velocity of the mobility 1 with the left-right direction as its axis, that is, the angular velocity of the mobility 1 in the pitch direction. Furthermore, the angular velocity sensor detects the angular velocity of the mobility 1 about the vertical axis, that is, the angular velocity of the mobility 1 in the yaw direction.
- the acceleration sensor detects the acceleration of the mobility 1 in three directions, i.e., the front-back direction, the left-right direction, and the up-down direction.
- the processor 12 is, for example, a CPU (Central Processing Unit) and includes an operation control section 121 and a transmission control section 122 .
- CPU Central Processing Unit
- the driving control unit 121 controls the driving unit 15 according to the user's driving operation by the input unit 11 to move the mobility 1 .
- the transmission control unit 122 While the mobility 1 is running, the transmission control unit 122 periodically (for example, every 30 seconds) transmits state information indicating the current state of the mobility 1 to the server device 3 .
- the state information includes a mobility ID for identifying mobility 1, the date and time when the state information was sent (the time when mobility 1 is running), the type of mobility 1, and the position of mobility 1 received by the GPS receiver 13. , and traveling speed of the mobility 1 detected by the sensor 16, angular velocity in three directions (roll direction, pitch direction and yaw direction), and acceleration in three directions (longitudinal direction, lateral direction and vertical direction).
- the type of mobility 1 indicates any one of a large vehicle, a normal vehicle, a small vehicle, a motorcycle (motorized bicycle), and a light vehicle.
- the communication unit 14 transmits various information to the server device 3 and receives various information from the server device 3 .
- the communication unit 14 transmits the state information to the server device 3 .
- the drive unit 15 is, for example, a travel motor and a transmission, and moves the mobility 1 according to control by the operation control unit 121.
- FIG. 3 is a diagram showing an example of the configuration of the terminal device 2.
- the terminal device 2 includes a control section 21 , an input section 22 , a display section 23 and a communication section 24 .
- the control unit 21 is, for example, a CPU, and controls the terminal device 2 as a whole.
- the input unit 22 is, for example, a touch panel, and receives input of various information by the user.
- the communication unit 24 transmits various information to the server device 3 and receives various information from the server device 3 .
- the display unit 23 is, for example, a liquid crystal display device, and displays various information.
- FIG. 4 is a schematic diagram for explaining the moving route of the mobility 1. As shown in FIG. 4
- FIG. 5 is a diagram showing an example of the configuration of the server device 3. As shown in FIG. As shown in FIG. 5, the server device 3 includes a communication section 31, a memory 32 and a processor 33 (computer).
- the communication unit 31 receives the state information transmitted by the mobility 1.
- the communication unit 31 outputs the received state information to the acquisition unit 331 .
- the communication unit 31 receives the extraction conditions transmitted by the terminal device 2 .
- the communication unit 31 transmits analysis result information to the terminal device 2 .
- the memory 32 is, for example, a semiconductor memory or a hard disk drive, and includes a map information storage unit 321, a state information storage unit 322, a link information storage unit 323, an area information storage unit 324, and a comfort database 325 (database).
- the map information storage unit 321 pre-stores information indicating a map of a predetermined area (hereinafter referred to as map information).
- map information information indicating a map of a predetermined area
- a region indicated by map information is divided into a plurality of areas.
- FIG. 6 is a diagram showing an example of dividing a region 65 indicated by map information into a plurality of areas.
- an area 65 indicated by the map information is divided into a plurality of rectangular areas.
- the multiple areas have the same size.
- the vertical and horizontal lengths of each area are, for example, 30 meters.
- Each area is given an area ID for identifying the area.
- "A[1,1]” and "A[1,2]” in FIG. 6 are area IDs.
- the stopover point 63 exists in the area whose area ID is "A[2,2]".
- the area 65 indicated by the map information is divided into a plurality of rectangular areas, but the present disclosure is not particularly limited to this, and may be divided into a plurality of circular areas. good.
- the state information storage unit 322 stores state information transmitted by a plurality of mobilities 1.
- the link information storage unit 323 stores link information indicating the position of each link on the map.
- FIG. 7 is a diagram showing an example of link information. As shown in FIG. 7, the link information storage unit 323 stores link information in which link IDs, endpoint coordinates, and distances are associated with each other.
- the endpoint coordinates represent the coordinates on the map of the two nodes that are the two endpoints of the link.
- Distance represents the distance between the two endpoints of the link.
- the area information storage unit 324 stores area information indicating the position on the map of each area included in the area 65 indicated by the map information.
- FIG. 8 is a diagram showing an example of area information. As shown in FIG. 8, the area information storage unit 324 stores area information in which an area ID is associated with the central coordinates of the area. The center coordinates represent the center coordinates on the map of each divided area.
- the comfort database 325 is a database that associates and stores, for each of one or more links in a predetermined area, the type of mobility 1 and the driving comfort when traveling on each link with the mobility 1 of that type. is.
- the driving comfort indicates the degree of comfort when traveling on each link within a predetermined area with mobility 1 among one or more links within the predetermined area. Therefore, by referring to the comfort database 325, it is possible to grasp, for example, which type of mobility 1 and which link should be used to move most comfortably in a predetermined area.
- FIG. 9 is a diagram showing an example of the comfort database 325.
- FIG. 11 shows an example in which the driving comfort "R11" when driving on the link is associated with.
- the comfort database 325 is generated by the generation unit 333. A method of generating the comfort database 325 will be described later.
- the processor 33 is, for example, a CPU, and includes an acquisition unit 331 , a calculation unit 332 , a generation unit 333 , a condition acquisition unit 334 , an extraction unit 335 and an output unit 336 .
- the acquisition unit 331 acquires state information indicating the current state of the mobility 1 that is being driven, and stores the acquired state information in the state information storage unit 322 .
- the calculation unit 332 refers to the state information storage unit 322, the link information storage unit 323, and the area information storage unit 324, and calculates a plurality of mobility 1 for each of one or more links (roads) within a predetermined area (predetermined region). For each type, a driving comfort level is calculated, which indicates how high the comfort level of the one or more links is when traveling on each link with each type of mobility 1 . The details of the calculation method of the driving comfort will be described later.
- the generation unit 333 For each of one or more links in a predetermined area, the generation unit 333 generates a plurality of types of mobility 1 and the driving comfort when traveling on each link with the type of mobility 1 calculated by the calculation unit 332. , and create a comfort database 325 in which .
- the condition acquisition unit 334 acquires the extraction conditions received by the communication unit 31.
- the extraction conditions specify at least one of the departure and destination of mobility 1, the type of mobility 1, the departure time and arrival time of mobility 1, and the driving comfort when traveling on roads with the type of mobility 1. including conditions to
- the extraction unit 335 extracts at least one link that satisfies the extraction condition acquired by the condition acquisition unit 334 from the link information storage unit 323, the area information storage unit 324, and the comfort database 325.
- the extraction unit 335 refers to the link information storage unit 323, the area information storage unit 324, and the comfort database 325, and uses the best priority search algorithm to specify the extraction conditions acquired by the condition acquisition unit 334. search for at least one best route to travel between a given origin and destination. Best-first search algorithms are, for example, the Dijkstra method, the A* algorithm, or the uniform cost search.
- the extraction unit 335 extracts all links that make up at least one of the searched best routes as at least one link that satisfies the extraction conditions.
- the output unit 336 outputs analysis result information including at least one link extracted by the extraction unit 335 to the communication unit 31 .
- the communication unit 31 transmits the analysis result information to the terminal device 2 .
- the output unit 336 appropriately refers to the link information storage unit 323, the area information storage unit 324, and the map information storage unit 321, and acquires map information including at least one link extracted by the extraction unit 335. .
- the output unit 336 draws so as to emphasize at least one best route searched by the extraction unit 335 and the starting point and destination specified by the extraction conditions on the map indicated by the map information.
- the output unit 336 outputs information indicating the drawn map to the communication unit 31 as analysis result information. Drawing with emphasis includes drawing the drawing target in a dark color, drawing the drawing target with a thick line, enclosing the drawing target with a line drawing, and the like.
- FIG. 10A is a diagram showing an example of analysis result information.
- the output unit 336 displays a link different from the three links 103 to 105 on the map 106 indicated by the map information including all the three links 103 to 105 extracted by the extraction unit 335.
- the three links 103 to 105 are drawn with dashed lines, and the three links 103 to 105 are drawn with bold black arrows to emphasize the route searched by the extraction unit 335, which consists of the three links 103 to 105.
- a drawn example is shown.
- FIG. 10A shows an example in which the output unit 336 draws the starting point 101 and the destination 102 specified by the extraction conditions with black circles emphasizing them.
- the output unit 336 outputs each of the at least one link extracted by the extraction unit 335, the driving comfort when traveling on each of the at least one link with the type of mobility 1 specified by the extraction condition, may be generated, and analysis result information including the generated heat map may be output to the communication unit 31 .
- the output unit 336 refers to the comfort database 325, and on the map indicated by the map information including all of the at least one link extracted by the extraction unit 335, each of the at least one link The greater the driving comfort value associated with the type of mobility 1 specified by the link and the extraction condition, the more emphasized the drawing may be.
- FIG. 10B is a diagram showing another example of analysis result information.
- the output unit 336 outputs three links 103 to 105 that constitute the route searched by the extraction unit 335 and other links extracted by the extraction unit 335 on the map 106 shown in FIG. 10A. is emphasized by drawing in a darker color as the driving comfort value associated with each link and the type of mobility 1 specified by the extraction condition is larger.
- link 103 is drawn in the darkest color and link 104 is drawn in the lightest color. This indicates that of the three links 103 to 105, the link 103 has the highest running comfort and the link 104 has the lowest running comfort.
- FIG. 11 is a flow chart for explaining the database generation operation of the server device 3 .
- target area The operation of generating the comfort database 325 in the server device 3 for one area (hereinafter referred to as target area) will be described below. Note that the operation of generating the comfort database 325 is performed for an arbitrary area at an arbitrary timing, such as once a day.
- step S1 the acquisition unit 331 acquires state information periodically transmitted from a plurality of mobilities 1 that are running, and stores the acquired state information in the state information storage unit 322. do.
- step S2 the calculation unit 332 calculates, for each of the one or more links in the target area, based on the state information acquired from the plurality of mobilities 1 traveling on the one or more links. Driving comfort is calculated for each type of mobility 1 . A method of calculating the driving comfort in step S2 will be described later.
- step S3 the generation unit 333 drives each link with the type of mobility 1 and the type of mobility 1 calculated by the calculation unit 332 for each of one or more links in the target area.
- a comfort database 325 is generated in which driving comfort at times is associated with.
- step S2 a method of calculating driving comfort by the calculation unit 332 in step S2 will be described.
- the target type for one type of mobility 1 (hereinafter referred to as the target type), for each of one or more links in the target area, the driving comfort when the target type of mobility 1 travels on each link is calculated.
- a calculation example will be described.
- the calculation unit 332 calculates the average speed when the target type of mobility 1 is traveling on each link and the sample standard deviation (sample standard deviation) of the speed when the target type of mobility 1 is traveling on each link. ) and speed comfort based on.
- the speed comfort indicates how comfortable the speed at which the target type of mobility 1 can run on each link.
- the calculation unit 332 refers to the link information storage unit 323, the area information storage unit 324, and the state information storage unit 322, and determines that the target type of mobility 1 is running on one or more links in the target area. Get the state information sent at the time.
- the calculation unit 332 refers to the running speed of the mobility 1 included in the acquired state information, and for each of the one or more links in the target area, the time when the target type of mobility 1 was running on each link L q An average value V q_ave of running speed is calculated.
- the average value V q_ave of the traveling speed when the target type of mobility 1 travels on each link L q is abbreviated as the average speed V q_ave on each link L q .
- calculation unit 332 refers to the position of the mobility 1 included in the acquired state information instead of referring to the running speed of the mobility 1 included in the acquired state information, and calculates the running speed of the mobility 1 of the target type. may be calculated.
- the calculation unit 332 may exclude, from the acquired state information, state information indicating that the running speed of the target type of mobility 1 is equal to or lower than a predetermined lower limit speed.
- state information indicating that the running speed of the target type of mobility 1 is equal to or lower than a predetermined lower limit speed.
- the information acquired when the target type of mobility 1 is forced to run or stop at a low speed below the lower limit speed due to traffic jams, traffic lights, etc. can be excluded from the state information, and based on the state information, It is possible to appropriately calculate the speed comfort when the target type of mobility 1 runs normally.
- the calculation unit 332 calculates the speed comfort C q Calculate
- V ave_min indicates the minimum value of the average velocities V q_ave on one or more links L q within the target area.
- V ave_max indicates the maximum value of the average velocities V q_ave on one or more links L q within the target area. That is, according to formula (1), the greater the average speed V q_ave on the link L q , the greater the speed comfort C q when traveling on the link L q with the target type of mobility 1 . Therefore, the speed comfort C q when traveling on the link L q whose average speed V q_ave is the maximum value V ave_max among the one or more links in the target area is 100%.
- the calculation unit 332 refers to the traveling speed included in the acquired state information, and for each of the one or more links in the target area, the target type of mobility 1 is traveling on each link L q .
- the sample standard deviation V q_ssd of the running speed at time is abbreviated as the sample standard deviation V q_ssd of the running speed on each link L q .
- the calculation unit 332 calculates the speed when traveling on each link L q with the target type of mobility 1 using the following formula (2) including the sample standard deviation V q_ssd of the traveling speed on each link L q . Calculate the stability D q .
- V ssd_min denotes the minimum value of the sample standard deviations V q_ssd of running speeds on one or more links L q within the target area.
- V ssd_max indicates the maximum value of the sample standard deviations V q_ssd of travel speeds on one or more links L q in the area of interest. That is, according to formula (2), the smaller the sample standard deviation V q_ssd of the running speed on the link L q , the greater the speed stability D q when the target type of mobility 1 runs on the link L q . Become. Therefore, among the one or more links in the target area, the speed stability D q when traveling on the link L q with the minimum value V ssd_min of the sample standard deviation V q_ssd of the running speed is 100%. .
- the calculation unit 332 weights the speed comfort C q and the speed stability D q when traveling on each link L q with the target type of mobility 1, as shown in the following equation (3).
- the average value is calculated as the speed comfort M q when traveling on each link L q with the target type of mobility 1 .
- WC is the weighting factor for the speed comfort Cq
- WD is the weighting factor for the speed stability Dq .
- the weighting factor WC and the weighting factor WD are set to arbitrary values of 0 or more so that at least one of the weighting factor WC and the weighting factor WD has a value greater than 0.
- the weighting factor W C and the weighting factor W D are based on experimental values, and the user of the mobility 1 determines which of the speed comfort C q and the speed stability D q is the comfort during driving of the mobility 1. It may be determined as appropriate depending on whether it is important as a quality. For example, if only the speed comfort Cq is emphasized as the comfort during running of the mobility 1, the weighting factor WC should be set to a value greater than 0, and the weighting factor WD should be set to 0.
- the calculation unit 332 samples the average angular velocity and average acceleration when the target type of mobility 1 is traveling on each link, and the angular velocity and acceleration when the target type of mobility 1 is traveling on each link.
- the straight running comfort is calculated based on the standard deviation and .
- the straight-running comfort indicates how comfortably the target type of mobility 1 can run straight on each link.
- the calculation unit 332 refers to the angular velocities in the three directions of the mobility 1 included in the acquired state information, and for each of one or more links in the target area, the mobility 1 of the target type is set to each link. Calculate the average value ⁇ jq_ave of the angular velocity in each direction j when traveling L q .
- the average angular velocity ⁇ jq_ave in each direction j when the target type of mobility 1 travels on each link L q is abbreviated as average angular velocity ⁇ jq_ave in each direction j on each link L q .
- the calculation unit 332 refers to the position of the mobility 1 included in the acquired state information instead of referring to the angular velocities in the three directions of the mobility 1 included in the acquired state information, and calculates the position of the mobility 1 of the target type. Angular velocities in three directions may be calculated.
- the calculation unit 332 may exclude, from the acquired state information, state information indicating that the running speed of the target type of mobility 1 is equal to or lower than a predetermined lower limit speed.
- state information indicating that the running speed of the target type of mobility 1 is equal to or lower than a predetermined lower limit speed.
- the information acquired when the target type of mobility 1 is forced to run or stop at a low speed below the lower limit speed due to traffic jams, traffic lights, etc. can be excluded from the state information, and based on the state information, It is possible to appropriately calculate straight-ahead comfort when the target type of mobility 1 runs normally.
- the calculation unit 332 uses the following formula (4) including the average angular velocity ⁇ jq_ave in each direction j in each link L q to determine the direction j Calculate the comfort E jq of the degree of rotation to .
- ⁇ j_ave_min denotes the minimum value of the average angular velocities ⁇ jq_ave in each direction j on one or more links L q within the target area.
- ⁇ j_ave_max indicates the maximum value of the average angular velocities ⁇ jq_ave in each direction j on one or more links L q within the target area. That is, according to formula (4), the smaller the average angular velocity ⁇ jq_ave in each direction j on the link L q , the more comfortable the degree of rotation in each direction j when traveling on the link L q with the target type of mobility 1. The sex E jq increases.
- the comfort E jq of the degree of rotation in each direction j when traveling on the link L q having the minimum value ⁇ j_ave_min in the average angular velocity ⁇ jq_ave in each direction j is , 100%.
- the calculation unit 332 refers to the angular velocity included in the acquired state information, and for each of the one or more links in the target area, when the target type of mobility 1 is running on each link L q Calculate the sample standard deviation ⁇ jq_ssd of the angular velocity in each direction j of .
- the sample standard deviation ⁇ jq_ssd of the angular velocity in each direction j when the target type of mobility 1 is traveling on each link L q is abbreviated as the sample standard deviation ⁇ jq_ssd of the angular velocity in each direction j on each link L q . do.
- the calculation unit 332 uses the following formula (5) including the sample standard deviation ⁇ jq_ssd of the angular velocity in each direction j in each link L q to calculate Calculate the stability F jq of the degree of rotation in each direction j.
- ⁇ j_ssd_min denotes the minimum of the sample standard deviations ⁇ jq_ssd of the angular velocity in each direction j on one or more links L q in the area of interest.
- ⁇ j_ssd_max denotes the maximum of the sample standard deviations ⁇ jq_ssd of the angular velocity in each direction j on one or more links L q in the area of interest. That is, according to equation (2), the smaller the sample standard deviation ⁇ jq_ssd of the angular velocity in each direction j on the link L q , the rotation in each direction j when traveling on the link L q with the target type of mobility 1. The degree of stability F jq is increased.
- the calculation unit 332 refers to the accelerations in the three directions of the mobility 1 included in the acquired state information, and for each of one or more links in the target area, the target type of the mobility 1 is each link L q Calculate the average value A jq_ave of the acceleration in each direction j when running.
- the average value of acceleration A jq_ave in each direction j when the target type of mobility 1 is traveling on each link L q is abbreviated as average acceleration A jq_ave in each direction j on each link L q .
- the calculation unit 332 may exclude, from the acquired state information, state information indicating that the running speed of the target type of mobility 1 is equal to or lower than a predetermined lower limit speed. In this case, information acquired when the target type of mobility 1 is forced to run or stop at a low speed below the lower limit speed due to traffic congestion, waiting at a traffic light, etc. can be excluded from the state information, and based on the state information, It is possible to appropriately calculate straight-ahead comfort when the target type of mobility 1 runs normally.
- the calculation unit 332 uses the following formula (6) including the average acceleration A jq_ave in each direction j in each link L q to determine the direction j Calculate the comfort G jq for acceleration to .
- a j_ave_min denotes the minimum value of the average accelerations A jq_ave in each direction j on one or more links L q within the target area.
- a j_ave_max indicates the maximum value of the average accelerations A jq_ave in each direction j on one or more links L q within the target area. That is, according to formula (6), the smaller the average acceleration A jq_ave in each direction j on the link L q , the more comfortable the acceleration in each direction j when traveling on the link L q with the target type of mobility 1. The gender G jq increases.
- the comfort G jq of the acceleration in each direction j when traveling on the link L q having the minimum value A j_ave_min in the average acceleration A jq_ave in each direction j is , 100%.
- the calculation unit 332 refers to the acceleration included in the obtained state information, and for each of the one or more links in the target area, when the target type of mobility 1 is running on each link L q Calculate the sample standard deviation A jq_ssd of the acceleration in each direction j of .
- the sample standard deviation A jq_ssd of acceleration in each direction j when the target type of mobility 1 is traveling on each link L q is abbreviated as A jq_ssd sample standard deviation of acceleration in each direction j on each link L q . do.
- the calculation unit 332 uses the following formula (7) including the sample standard deviation A jq_ssd of the acceleration in each direction j on each link L q to calculate the Calculate the stability H jq of acceleration in each direction j.
- a j_ssd_min denotes the minimum of the sample standard deviations A jq_ssd of acceleration in each direction j on one or more links L q in the area of interest.
- a j_ssd_max indicates the maximum value among the sample standard deviations A jq_ssd of the acceleration in each direction j on one or more links L q within the area of interest. That is, according to the formula (7), the smaller the sample standard deviation A jq_ssd of the acceleration in each direction j on the link L q , the acceleration in each direction j when the target type of mobility 1 travels on the link L q .
- the joint stability H jq increases.
- the stability of the acceleration in each direction j when traveling on the link L q in which the sample standard deviation A jq_ssd of the acceleration in each direction j is the minimum value A j_ssd_min H jq becomes 100%.
- the calculation unit 332 calculates the comfort E jq of the degree of rotation in each direction j when traveling on each link L q with the target type of mobility 1, and the degree of comfort E jq in each direction j, A weighted average value of the stability of the degree of rotation F jq , the comfort G jq of acceleration in each direction j, and the stability of acceleration H jq in each direction j is calculated for each link L q is calculated as straight-ahead comfort N q when traveling.
- W jE is the weighting factor for the comfort E jq of the degree of rotation in each direction j.
- W jF is a weighting factor for the stability F jq of the degree of rotation in each direction j.
- W jG is the weighting factor of comfort G jq for acceleration in each direction j.
- WjH is a weighting factor for the stability Hjq of acceleration in each direction j. At least one of the weighting coefficients WjE, WjF , WjG, and WjH is set to an arbitrary value of 0 or more, with a value greater than 0.
- Weighting coefficients W jE, W jF , W jG, and W jH are calculated based on experimental values for the mobility 1 user's degree of comfort E jq in each direction j, j Any one of the stability F jq of the degree of rotation to the direction j, the comfort G jq of the acceleration in each direction j, and the stability H jq of the acceleration in each direction j is defined as the comfort during traveling of the mobility 1. It may be determined as appropriate depending on whether it is important.
- W1E, W2E, W3E, W1G, W2G, and W3G are set to values greater than 0, and the weighting coefficients W1F, W2F , W3F , W1H , W2H , and W3H are set to 0. You just have to decide.
- the calculation unit 332 calculates the weighted average value of the speed comfort M q and the straight-line comfort N q as shown in the following equation (9) when the target type of mobility 1 travels on each link L q . It is calculated as driving comfort R q .
- ⁇ denotes a weighting factor for speed comfort M q greater than zero.
- ⁇ denotes a weighting factor of the straight running comfort N q , which is greater than zero.
- the weighting coefficients ⁇ and ⁇ are based on experimental values and depend on which of the speed comfort M q and the straight-line comfort N q the user of the mobility 1 places importance on as comfort during traveling of the mobility 1. It may be determined as appropriate. For example, when speed comfort Mq is more important than straight running comfort Nq as the comfort during traveling of the mobility 1, the weighting factor ⁇ may be set to a value larger than the weighting factor ⁇ .
- a comfort database 325 is generated in which R q is associated with. Therefore, from the created comfort database 325, it is possible to collect the travel comfort Rq when the specific type of mobility 1 travels on each link Lq in the predetermined area.
- each link Lq can be driven among one or more links in a predetermined area by the specific type of mobility 1. can grasp. As a result, when moving within a predetermined area, it is possible to grasp which type of mobility 1 and which link should be used to move comfortably.
- step S2 the calculation unit 332 calculates, for each of the one or more links in the target area, based on the state information obtained from the plurality of mobilities 1 traveling on the one or more links.
- the types of the mobilities 1 and the driving comfort during the times when the mobilities 1 were running may be calculated.
- the time zone may be, for example, a one-hour time zone obtained by dividing one day into 24 equal time zones, or a 12-hour time zone representing the morning and a 12-hour time zone representing the afternoon. .
- the calculation unit 332 refers to the link information storage unit 323, the area information storage unit 324, and the state information storage unit 322, and determines that the target type of mobility 1 is traveling on one or more links in the target area. Gets the state information shown.
- the calculation unit 332 refers to the transmission date and time included in the acquired status information, and divides the acquired status information for each time period including the referred transmission date and time.
- the calculation unit 332 calculates the driving comfort R q as described above using the state information for each time period after the division, and calculates the driving comfort R q for each time period by traveling on each link L q with the target type of mobility 1. It is assumed that the running comfort is R q when
- step S3 the generation unit 333 generates the type of mobility 1, the time zone during which the mobility 1 was running, and the calculation unit A comfort database 325 is generated in which the travel comfort R q calculated by 332 when traveling on each link L q in the relevant type of mobility 1 during the relevant time slot is associated with the comfort database 325 .
- FIG. 12 is a diagram showing another example of the comfort database 325.
- FIG. 12 in the generated comfort database 325, the type of mobility 1 "large vehicle” and the mobility 1 of the type “large vehicle” run with respect to the link with the link ID "131011". and the driving comfort "R111" when traveling on the link with the link ID "131011” in the time period “morning” with the mobility 1 of the type "large vehicle” in the time period "morning". An example is shown.
- the generated comfort database 325 it is possible to collect the travel comfort R q when traveling on each link L q in the target area in a specific time period with a specific type of mobility 1 .
- the relative comfort level of each link L q among one or more links in the target area is determined by a specific type of mobility 1 in a specific time period. You can see if you can run. As a result, when moving within the target area during a certain time period, it is possible to grasp which type of mobility 1 and which link should be used to move comfortably.
- step S2 the calculation unit 332 calculates, for each of the one or more links in the target area, based on the state information obtained from the plurality of mobilities 1 traveling on the one or more links. , the type of the plurality of mobilities 1 and the driving comfort in the environment when the plurality of mobilities 1 are traveling may be calculated.
- the environment when the plurality of mobilities 1 are traveling is, for example, the weather, season, or date division when the plurality of mobilities 1 are traveling.
- the date segment indicates which day of the seven days of the week from Sunday to Saturday and which holiday it is.
- step S1 the acquisition unit 331 refers to the transmission date and time included in the state information acquired from the plurality of mobilities 1 that are running, and uses the communication unit 31 to transmit the transmission information to the public server 4.
- Query information indicating the weather, season, or date division corresponding to the date and time.
- the acquisition unit 331 acquires information indicating the weather, season, or date division corresponding to the transmission date and time received by the communication unit 31 from the public server 4 as information indicating the environment when the mobility 1 was traveling.
- the acquisition unit 331 stores the acquired information indicating the environment when the mobility 1 was running (hereinafter referred to as environment information) in the state information storage unit 322 .
- the calculation unit 332 refers to the link information storage unit 323, the area information storage unit 324, and the state information storage unit 322, and the target type mobility 1 determines one or more links in the target area. Acquire state information indicating that the vehicle was running.
- the calculation unit 332 refers to the environment information included in the acquired state information, and divides the acquired state information for each environment indicated by the referred environment information.
- the calculation unit 332 uses the state information of each environment after the division to calculate the driving comfort R q as described above, and calculates this when traveling on each link L q with the target type of mobility 1 in each environment. of driving comfort R q .
- step S3 the generation unit 333 generates the type of mobility 1, the environment in which the mobility 1 was running, and the calculated A comfort database 325 is generated in which the driving comfort R q calculated by the unit 332 when traveling on each link L q with the mobility 1 of the type in the environment is associated with the comfort database 325 .
- FIG. 13 is a diagram showing another example of the comfort database 325.
- FIG. 13 in the generated comfort database 325, the type of mobility 1 “large vehicle” and the mobility 1 of the type “large vehicle” run with respect to the link with the link ID “131011”. and the driving comfort "R131" when driving on the link with the link ID "131011” in the environment “sunny” with mobility 1 of the type "large vehicle” in the environment “sunny”. An example is shown.
- the generated comfort database 325 it is possible to collect the driving comfort Rq when driving on each link Lq in the target area with a specific type of mobility 1 in a specific environment. According to this collected driving comfort R q , it is possible to determine how relatively high the comfort of driving each link L q among one or more links in the target area by a specific type of mobility 1 in a specific environment. You can figure out what you can do. As a result, when moving within a target area in a certain environment, it is possible to grasp which type of mobility 1 and which link should be used to move comfortably.
- FIG. 14 is a flow chart for explaining the data analysis operation of the server device 3. As shown in FIG.
- the condition acquisition unit 334 acquires the extraction conditions that the communication unit 31 received from the terminal device 2 .
- the terminal device 2 receives input of extraction conditions by the operator and transmits the input extraction conditions to the server device 3 .
- the extraction conditions include at least one of the departure and destination of Mobility 1, the type of Mobility 1, the departure time and arrival time of Mobility 1, and the time when the type of Mobility 1 travels on the road. Contains conditions that specify driving comfort.
- step S12 the extraction unit 335 extracts from the link information storage unit 323, the area information storage unit 324, and the comfort database 325 at least one link that satisfies the extraction conditions acquired in step S11.
- step S13 the output unit 336 outputs analysis result information including at least one link extracted in step S12 to the communication unit 31.
- the communication unit 31 transmits the analysis result information to the terminal device 2 .
- the terminal device 2 receives the analysis result information transmitted by the server device 3 and displays the received analysis result information. Thereby, the terminal device 2 can present the analysis result information to the operator.
- calculation unit 332 calculates the speed comfort and the straight-line comfort, and calculates the running comfort using the weighted average value of the speed comfort and the straight-line comfort.
- the calculation unit 332 further calculates the environmental comfort, and calculates the speed comfort based on the weighted average value of the speed comfort, the straight-line comfort, and the environmental comfort.
- Environmental comfort indicates how comfortable the environment is when traveling on each link with the target type of mobility 1 .
- the acquisition unit 331 refers to the transmission date and time included in the state information acquired from the plurality of mobilities 1 that are running, and uses the communication unit 31 to , the environmental index corresponding to the transmission date and time is queried.
- An environmental index is an index that indicates the environment.
- environmental indicators include solar radiation, precipitation, snowfall, temperature and wind speed.
- the wind speed may be a wind speed for each wind direction (for example, an easterly wind speed, a westerly wind speed, etc.), or may be a wind speed regardless of the wind direction.
- the acquisition unit 331 acquires the environmental index corresponding to the transmission date and time received by the communication unit 31 from the public server 4 as the environmental index when the mobility 1 is running.
- the acquisition unit 331 stores the acquired environmental index when the mobility 1 is running in the state information in the state information storage unit 322 .
- step S2 the calculation unit 332 calculates speed comfort M q and straight-line comfort N q when the target type of mobility 1 travels on each link Lq, as in the first embodiment. do. Furthermore, the calculation unit 332 calculates the environmental comfort Z q when the target type of mobility 1 travels on each link Lq as follows.
- the calculation unit 332 refers to the link information storage unit 323, the area information storage unit 324, and the state information storage unit 322, and determines that the target type of mobility 1 is running on one or more links in the target area. Get the state information sent at the time.
- the calculation unit 332 refers to the environmental index included in the acquired state information, and for each of the one or more links in the target area, each Calculate the average value U jq_ave of the environmental index j.
- the average value U jq_ave of each environmental index j when the target type of mobility 1 travels on each link L q is abbreviated as the average value U jq_ave of each environmental index j on each link L q .
- the calculation unit 332 may exclude, from the acquired state information, state information indicating that the running speed of the target type of mobility 1 is equal to or lower than a predetermined lower limit speed.
- state information indicating that the running speed of the target type of mobility 1 is equal to or lower than a predetermined lower limit speed.
- the information acquired when the target type of mobility 1 is forced to run or stop at a low speed below the lower limit speed due to traffic jams, traffic lights, etc. can be excluded from the state information, and based on the state information, It is possible to appropriately calculate the environmental comfort when the target type of mobility 1 runs normally.
- the calculation unit 332 uses the following formula (10) including the average value U jq_ave of each environmental index j on each link L q to determine the environment when the target type of mobility 1 travels on each link L q .
- a comfort X jq of the environment indicated by the index j is calculated.
- U j_ave_min indicates the minimum value of average values U jq_ave of each environmental index j on one or more links L q within the target area.
- U j_ave_max indicates the maximum value among the average values U jq_ave of each environmental index j on one or more links L q within the target area. That is, according to the equation (10), the smaller the average value U jq_ave of each environmental index j on the link L q , the more the environment indicated by each environmental index j when the target type of mobility 1 travels on the link L q . Comfort X jq is increased.
- the environmental comfort X jq indicated by each environmental index j when traveling on the link L q having the minimum value U j_ave_min of the average value U jq_ave of each environmental index j becomes 100%.
- the calculation unit 332 refers to the environmental index included in the acquired state information, and for each of the one or more links in the target area, the target type of mobility 1 is running on each link L q .
- the sample standard deviation U jq_ssd of each environmental index j at time is abbreviated as sample standard deviation U jq_ssd of each environmental index j on each link L q .
- the calculation unit 332 uses the following formula (11) including the sample standard deviation U jq_ssd of each environmental index j at each link L q to calculate each An environmental stability Y jq indicated by the environmental index j is calculated.
- U j_ssd_min denotes the minimum value among the sample standard deviations U jq_ssd of each environmental indicator j on one or more links L q within the target area.
- U j_ssd_max denotes the maximum value among the sample standard deviations U jq_ssd of each environmental index j on one or more links L q within the area of interest. That is, according to the equation (11), the smaller the sample standard deviation U jq_ssd of each environmental index j on the link L q , the more the environment indicated by each environmental index j when the target type of mobility 1 travels on the link L q . The stability Y jq of becomes large.
- the stability Y of the environment indicated by each environmental index j when traveling on the link L q with the minimum value U j_ssd_min of the sample standard deviation U jq_ssd of each environmental index j jq becomes 100%.
- the calculation unit 332 calculates the environmental comfort X jq indicated by each environmental index j when the target type of mobility 1 travels on each link L q , and each environmental index j is The weighted average value of the indicated environmental stability Y jq is calculated as the environmental comfort Z q when traveling on each link L q with the target type of mobility 1 .
- W jX is a weighting factor of the environmental comfort X jq indicated by each environmental index j.
- W jY is a weighting factor for environmental stability Y jq indicated by each environmental index j.
- n indicates the number of environmental indicators. For example, if the state information includes solar radiation and rainfall as environmental indicators, the number of environmental indicators is two.
- the weighting coefficients WjX and WjY are set to arbitrary values equal to or greater than 0 such that at least one of them is greater than 0.
- the weighting coefficients W jX and W jY are based on experimental values to determine whether the user of the mobility 1 is comfortable with the environment X jq indicated by each environmental index j and the stability of the environment indicated by each environmental index j. It may be appropriately determined according to which of the characteristics Y, jq is emphasized as comfort during traveling of the mobility 1 .
- the calculation unit 332 calculates the weighted average value of the speed comfort M q , the straight running comfort N q , and the environmental comfort Z q as shown in the following equation (13). q is calculated as the driving comfort R q when driving.
- ⁇ denotes a weighting factor for speed comfort M q greater than zero.
- ⁇ denotes a weighting factor of the straight running comfort N q , which is greater than zero.
- ⁇ denotes a weighting factor for environmental comfort Z q greater than zero.
- the weighting coefficients ⁇ , ⁇ , and ⁇ are determined based on experimental values by which the mobility 1 user selects any of the speed comfort M q , the straight-line comfort N q , and the environmental comfort Z q as comfort during driving of the mobility 1. It may be determined as appropriate depending on whether it is important as a quality.
- the weighting factor ⁇ should be set to a value larger than the weighting factor ⁇ and the weighting factor ⁇ , and the weighting factor ⁇ should be set to a value larger than the weighting factor ⁇ (if ⁇ > ⁇ > ⁇ is set, good).
- step S2 the calculation unit 332 calculates, for each of one or more links in the target area, a plurality of mobilities running on the one or more links. Based on the state information acquired from 1, the types of the plurality of mobilities 1 and the traveling comfort during the time period during which the plurality of mobilities 1 were traveling may be calculated. Accordingly, in step S3 (FIG. 11), the generation unit 333 generates the type of the mobility 1, the time zone during which the mobility 1 was traveling, and the calculation unit A comfort database 325 may be generated in which the travel comfort R q calculated by 332 when traveling on each link L q in the relevant type of mobility 1 during the relevant time period are associated with each other.
- the mobility It is possible to more appropriately calculate the running comfort R q by taking into consideration the average value of the environmental index and the variation in the environmental index when the vehicle 1 travels on each link L q .
- each component may be configured with dedicated hardware or realized by executing a software program suitable for each component.
- Each component is realized by reading and executing a software program (database generation program, data analysis program) recorded on a recording medium such as a hard disk or a semiconductor memory by a program execution unit (computer) such as a CPU or processor.
- a software program database generation program, data analysis program
- a recording medium such as a hard disk or a semiconductor memory
- a program execution unit such as a CPU or processor.
- LSI Large Scale Integration
- circuit integration is not limited to LSIs, and may be realized by dedicated circuits or general-purpose processors.
- An FPGA Field Programmable Gate Array
- reconfigurable processor that can reconfigure the connections and settings of the circuit cells inside the LSI may be used.
- a processor such as a CPU executing a program (database generation program, data analysis program).
- each step shown in the above flowchart is executed is for illustrative purposes in order to specifically describe the present disclosure, and may be an order other than the above as long as the same effect can be obtained. . Also, some of the above steps may be executed concurrently (in parallel) with other steps.
- the technology according to the present disclosure is useful for technology for generating a database because it is possible to collect information on the comfort level of each type of mobility when traveling on roads within a predetermined area.
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Abstract
Description
軽車両及び原動機付自転車(バイク)等は、道路の端側を自動車に比べて低速で走行するように法令で定められている場合がある。この場合、軽車両及び原動機付自転車等は、歩行者及び道路上に駐停車している自動車を避けるために、減速したり、進行方向を大きく変える機会が多く、同じ道路を走行する場合であっても自動車より快適に走行できないことが多い。
図1は、本開示の実施の形態におけるモビリティ管理システム100の全体構成を示す図である。図1に示すように、モビリティ管理システム100は、モビリティ1、端末装置2及びサーバ装置3を備える。
続いて、サーバ装置3のデータベース生成動作について説明する。図11は、サーバ装置3のデータベース生成動作について説明するためのフローチャートである。
続いて、ステップS2における算出部332による走行快適性の算出方法について説明する。以下では、ある一の種類(以降、対象種類)のモビリティ1を対象にして、対象エリア内の一以上のリンクのそれぞれについて、対象種類のモビリティ1が各リンクを走行する時の走行快適性を算出する例について説明する。
まず、算出部332は、対象種類のモビリティ1が各リンクを走行していたときの平均速度と、対象種類のモビリティ1が各リンクを走行しているときの速度のサンプル標準偏差(標本標準偏差)と、に基づいて速度快適性を算出する。速度快適性は、対象種類のモビリティ1でどの程度快適な速度で各リンクを走行できるかを示す。
次に、算出部332は、対象種類のモビリティ1が各リンクを走行していたときの平均角速度及び平均加速度と、対象種類のモビリティ1が各リンクを走行しているときの角速度及び加速度のサンプル標準偏差と、に基づいて、直進快適性を算出する。直進快適性は、対象種類のモビリティ1でどの程度快適に各リンクを直進走行できるかを示す。
続いて、サーバ装置3のデータ解析動作について説明する。図14は、サーバ装置3のデータ解析動作について説明するためのフローチャートである。
以下、本開示の第2の実施の形態について説明する。第1の実施の形態では、算出部332が、速度快適性及び直進快適性を算出し、速度快適性及び直進快適性の加重平均値によって走行快適性を算出する例について説明した。第2の実施の形態では、算出部332は、更に、環境快適性を算出し、速度快適性、直進快適性及び環境快適性の加重平均値によって速度快適性を算出する。環境快適性は、対象種類のモビリティ1で各リンクを走行するときの環境がどの程度快適であるかを示す。
具体的には、算出部332は、リンク情報記憶部323、エリア情報記憶部324及び状態情報記憶部322を参照し、対象種類のモビリティ1が対象エリア内の一以上のリンクを走行している時に送信した状態情報を取得する。
Claims (14)
- コンピュータが、
所定領域内の一以上の道路を走行している複数のモビリティの種類及び位置を示す状態情報を取得し、
前記一以上の道路のそれぞれについて、前記状態情報に基づいて、前記複数のモビリティの種類毎に、各種類のモビリティで各道路を走行する時の快適性が前記一以上の道路の中でどの程度高いかを示す走行快適性を算出し、
前記一以上の道路のそれぞれに対し、前記複数のモビリティの種類と、当該種類のモビリティで各道路を走行する時の前記走行快適性と、を対応付けたデータベースを生成する、
データベース生成方法。 - 前記状態情報は、更に、前記複数のモビリティが走行している時の時刻を示す情報を含み、
前記走行快適性の算出では、
前記一以上の道路のそれぞれについて、前記状態情報に基づいて、前記複数のモビリティの種類及び前記複数のモビリティが走行していた時間帯における前記走行快適性を算出し、
前記データベースの生成では、
前記一以上の道路のそれぞれに対し、前記複数のモビリティの種類と、前記複数のモビリティが走行していた時間帯と、当該時間帯に当該種類のモビリティで各道路を走行する時の前記走行快適性と、を対応付ける、
請求項1に記載のデータベース生成方法。 - 前記状態情報は、更に、前記複数のモビリティが前記一以上の道路を走行している時の環境を示す情報を含み、
前記走行快適性の算出では、
前記一以上の道路のそれぞれについて、前記状態情報に基づいて、前記複数のモビリティの種類及び前記複数のモビリティが走行していたときの環境における前記走行快適性を算出し、
前記データベースの生成では、
前記一以上の道路のそれぞれに対し、前記複数のモビリティの種類と、前記複数のモビリティが走行していたときの環境と、当該環境において当該種類のモビリティで各道路を走行する時の前記走行快適性と、を対応付ける、
請求項1に記載のデータベース生成方法。 - 前記走行快適性の算出では、
各種類のモビリティが各道路を走行していたときの平均速度に基づく速度快適性と、各種類のモビリティが各道路を走行していたときの平均角速度及び平均加速度に基づく直進快適性と、に基づいて、各種類のモビリティが各領域に含まれる各道路を走行する時の前記走行快適性を算出する、
請求項1から3の何れか一項に記載のデータベース生成方法。 - 前記走行快適性の算出では、
各種類のモビリティが各道路を走行しているときの平均速度と、各種類のモビリティが各道路を走行しているときの速度のサンプル標準偏差と、に基づき前記速度快適性を算出し、
各種類のモビリティが各道路を走行しているときの平均角速度及び平均加速度と、各種類のモビリティが各道路を走行しているときの角速度及び加速度のサンプル標準偏差と、に基づき前記直進快適性を算出する、
請求項4に記載のデータベース生成方法。 - 前記走行快適性の算出では、
各種類のモビリティが各道路を走行していたときの平均速度に基づく速度快適性と、各種類のモビリティが各道路を走行していたときの平均角速度及び平均加速度に基づく直進快適性と、各種類のモビリティが各道路を走行していたときの環境を示す指標の平均値に基づく環境快適性と、に基づいて、各種類のモビリティが各領域に含まれる各道路を走行する時の前記走行快適性を算出する、
請求項1又は2に記載のデータベース生成方法。 - 前記走行快適性の算出では、
各種類のモビリティが各道路を走行しているときの平均速度と、各種類のモビリティが各道路を走行しているときの速度のサンプル標準偏差と、に基づき前記速度快適性を算出し、
各種類のモビリティが各道路を走行しているときの平均角速度及び平均加速度と、各種類のモビリティが各道路を走行しているときの角速度及び加速度のサンプル標準偏差と、に基づき前記直進快適性を算出し、
各種類のモビリティが各道路を走行しているときの環境を示す指標の平均値と、各種類のモビリティが各道路を走行しているときの環境を示す指標のサンプル標準偏差と、に基づき前記環境快適性を算出する、
請求項6に記載のデータベース生成方法。 - 前記走行快適性の算出では、
各種類のモビリティが所定の下限速度以下の速度で各道路を走行していたことを示す情報を前記状態情報から除外した情報に基づいて前記走行快適性を算出する、
請求項1に記載のデータベース生成方法。 - 所定領域内の一以上の道路を走行している複数のモビリティの種類及び位置を示す状態情報を取得する取得部と、
前記一以上の道路のそれぞれについて、前記状態情報に基づいて、前記複数のモビリティの種類毎に、各種類のモビリティで各道路を走行する時の快適性が前記一以上の道路の中でどの程度高いかを示す走行快適性を算出する算出部と、
前記一以上の道路のそれぞれに対し、前記複数のモビリティの種類と、当該種類のモビリティで各道路を走行する時の前記走行快適性と、を対応付けたデータベースを生成する生成部と、
を備えるデータベース生成装置。 - 所定領域内の一以上の道路を走行している複数のモビリティの種類及び位置を示す状態情報を取得し、
前記一以上の道路のそれぞれについて、前記状態情報に基づいて、前記複数のモビリティの種類毎に、各種類のモビリティで各道路を走行する時の快適性が前記一以上の道路の中でどの程度高いかを示す走行快適性を算出し、
前記一以上の道路のそれぞれに対し、前記複数のモビリティの種類と、当該種類のモビリティで各道路を走行する時の前記走行快適性と、を対応付けたデータベースを生成するようにコンピュータを機能させるデータベース生成プログラム。 - 請求項1に記載のデータベース生成方法によって生成された前記データベースから抽出条件を満たす少なくとも一の道路を抽出するデータ解析装置におけるデータ解析方法であって、
前記抽出条件は、モビリティの種類及び当該種類のモビリティで道路を走行するときの前記走行快適性を特定する条件を含み、
前記抽出条件を取得し、
前記抽出条件を満たす前記少なくとも一の道路を前記データベースから抽出し、
抽出した前記少なくとも一の道路を含む解析結果情報を出力する、
データ解析方法。 - 前記解析結果情報は、前記少なくとも一の道路のそれぞれと、前記抽出条件によって特定される種類のモビリティで前記少なくとも一の道路のそれぞれを走行する時の前記走行快適性と、の関係を表すヒートマップを含む、
請求項11に記載のデータ解析方法。 - 請求項1に記載のデータベース生成方法によって生成された前記データベースから抽出条件を満たす少なくとも一の道路を抽出するデータ解析装置であって、
前記抽出条件は、モビリティの種類及び当該種類のモビリティで道路を走行するときの前記走行快適性を特定する条件を含み、
前記抽出条件を取得する条件取得部と、
前記抽出条件を満たす前記少なくとも一の道路を前記データベースから抽出する抽出部と、
抽出した前記少なくとも一の道路を含む解析結果情報を出力する出力部と、
を備えるデータ解析装置。 - 請求項1に記載のデータベース生成方法によって生成された前記データベースから抽出条件を満たす少なくとも一の道路を抽出するデータ解析プログラムであって、
前記抽出条件は、モビリティの種類及び当該種類のモビリティで道路を走行するときの前記走行快適性を特定する条件を含み、
前記抽出条件を取得し、
前記抽出条件を満たす前記少なくとも一の道路を前記データベースから抽出し、
抽出した前記少なくとも一の道路を含む解析結果情報を出力するようにコンピュータを機能させるデータ解析プログラム。
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