JP2020057426A - Information transmission device - Google Patents

Abstract

To provide an information transmission device and an information presentation device that can recommend optimal speed without being affected by a specific mobile body.SOLUTION: In a server 20, a communication unit 21 collects, from each of a plurality of on-vehicle devices 10, information on a host vehicle, and a generation unit 22 generates speed distribution information 23a indicating distribution of travel speed at a prescribed position on the basis of speed information and positional information collected by the communication unit 21 and transmits it in response to a request from an on-vehicle device 30.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an information presentation device that presents information to a mobile object.

  2. Description of the Related Art Conventionally, there has been known a device that provides suitable support when traveling on a road existing in a traveling direction. For example, Patent Document 1 discloses detecting another vehicle existing in front of the road on which the own vehicle is traveling, acquiring the traveling state of the other vehicle using inter-vehicle communication, and based on the acquired traveling state of the other vehicle. Assists the vehicle in adapting to the road conditions in the traveling direction. Specifically, the traveling locus of another vehicle is calculated, and the condition of the road ahead is estimated. It describes that an appropriate speed is calculated from a curve shape included in the estimated front road condition, compared with the state of the own vehicle, and if there is a difference, control or notification is performed.

JP 2006-24104 A

  The road adaptive travel control device for a vehicle described in Patent Literature 1 receives speed information from a preceding vehicle, an oncoming vehicle, or the like, on which a host vehicle has actually traveled on a planned route, using inter-vehicle communication. Therefore, it is affected by a specific vehicle. For example, when the communication partner vehicle is not traveling at an appropriate speed such as rough driving, there is a problem that guidance at an optimal speed cannot be provided.

  In view of the above-described problem, an object of the present invention is to provide, for example, an information presentation device that can guide an optimum speed without being affected by a specific moving object.

  In order to solve the above-mentioned problem, the invention according to claim 1 is an information presentation device arranged on a moving body, wherein the position information on a position where a plurality of other moving bodies has moved and the position information on the moved position respectively. A distribution information acquisition unit configured to acquire speed distribution information indicating a distribution of a moving speed at a predetermined position, which is generated based on speed information related to a moving speed of another moving body, and the moving body in which the information presentation device is arranged A display unit having a first display unit that displays the current moving speed by pointing to a position on a scale, and a second display unit that displays the speed distribution information in association with the first display unit. It is characterized by having.

  The invention according to claim 2 is an information presentation method in an information presentation device arranged on a moving body, wherein the distribution information acquisition unit is configured to provide position information on a position where a plurality of other moving bodies have moved and a position where the plurality of moving bodies have moved. A distribution information acquisition step of acquiring speed distribution information indicating a distribution of the moving speed at a predetermined position, which is generated based on the speed information related to the moving speed of the other moving object, and a display unit, A first display unit that displays the current moving speed of the placed moving body by pointing to a position on a scale and a second display unit that displays the speed distribution information in association with the first display unit. And a display step of performing the display.

  According to a third aspect of the present invention, a computer executes the information presentation method according to the second aspect.

  The invention according to claim 4 is an information presentation device arranged on a moving body, wherein the distribution information acquiring unit acquires speed distribution information that is a distribution of moving speeds of a plurality of other moving bodies at a predetermined position. And a display unit for displaying a current moving speed of the moving body on which the information presenting device is arranged at the predetermined position and the speed distribution information in association with each other.

  The invention according to claim 5 is an information presentation method in an information presentation device arranged on a moving body, wherein the distribution information acquisition unit is a distribution of moving velocities of a plurality of other moving bodies at a predetermined position. A distribution information acquiring step of acquiring distribution information, and a display step of displaying a current moving speed of the moving body on which the information presenting device is arranged at the predetermined position and the speed distribution information in association with each other. And is characterized by including.

  According to a sixth aspect of the present invention, a computer executes the information presentation method according to the fifth aspect.

FIG. 1 is a block diagram of an information transmitting device and an information presenting device according to a first embodiment of the present invention. It is an example of a curved road. 3 is a graph showing a distribution of a minimum speed when passing between a start point and an end point of the curve shown in FIG. 2. FIG. 2 is an explanatory diagram of a method for estimating an appropriate speed in the information transmitting device shown in FIG. 1. FIG. 2 is an explanatory diagram of a display example of speed distribution information in the information presentation device shown in FIG. 1. 4 is a flowchart of an operation of generating speed distribution information in the information transmitting device shown in FIG. 3 is a flowchart of an operation of estimating and transmitting an appropriate speed in the information transmitting apparatus shown in FIG. 1. 3 is a flowchart of a vehicle information generation operation in the information presentation device shown in FIG. 1. 2 is a flowchart of an operation of presenting speed distribution information and an appropriate speed in the information presentation device shown in FIG. 1. 6 is a flowchart of an appropriate speed estimation and presentation operation of the information presentation device according to the second example of the present invention.

  Hereinafter, an information transmitting apparatus according to an embodiment of the present invention will be described. In the information transmitting apparatus according to an embodiment of the present invention, the collection unit may include, from each of the plurality of first moving bodies, position information on a moved position and a first speed on a moving speed of the first moving body at each of the moved positions. Information, the generating unit generates speed distribution information indicating a distribution of a moving speed at a predetermined position based on the position information and the first speed information collected by the collecting unit, and the transmitting unit generates Transmits speed distribution information in response to a request from By doing so, it is possible to generate and transmit speed distribution information based on the first speed information of the plurality of first moving objects, so that the influence of a specific moving object can be obtained by referring to the speed distribution information. The optimum speed can be guided without the need.

  In addition, the collection unit may further acquire environment information at a position included in the position information, and the generation unit may generate speed distribution information based on the environment information. By doing so, it is possible to generate speed distribution information in consideration of environmental information such as weather, temperature, and traveling time, and it is possible to guide a more optimal speed.

  In addition, the collection unit may further acquire information on the type of the first moving object, and the generation unit may generate speed distribution information based on the information on the type of the first moving object. By doing so, it is possible to generate speed distribution information in consideration of information on the type, size, weight, and the like of the first moving body, and it is possible to guide a more optimal speed.

  In addition, the generation unit may further generate attention information at a predetermined position based on a plurality of pieces of speed distribution information. By doing so, attention information can be generated based on a change in speed or environment near a predetermined position and a change in the type of the moving object, and attention can be called together with the speed distribution information.

  A second speed acquisition unit configured to generate speed distribution information at a plurality of positions, and to obtain second speed information regarding each of the moving speeds when the plurality of positions are moved from the second moving body; Based on the second speed information acquired by the two-speed acquisition unit and the speed distribution information at a position corresponding to the second speed information, the tendency of the moving speed of the second moving body is determined, and the determined tendency and the tendency at the predetermined position are determined. An estimating unit for estimating an appropriate speed suitable for the case where the second mobile body moves at a predetermined position based on the speed distribution information, wherein the transmitting unit further transmits information on the appropriate speed. Good. With this configuration, it is possible to estimate an appropriate speed when the second mobile body moves at a predetermined position from the speed and the speed distribution information at an arbitrary position when the second mobile body moves in the past. Therefore, it is possible to guide the speed according to the tendency of the second moving body.

  Further, the information presentation device according to one embodiment of the present invention is arranged in the above-described second mobile object, the distribution information acquisition unit acquires the speed distribution information, and the estimation unit acquires the speed acquired by the distribution information acquisition unit. Based on the distribution information, an appropriate speed suitable for the case where the second mobile body moves at a predetermined position is estimated, and the presentation unit presents information on the appropriate speed. With this configuration, it is possible to estimate a speed suitable for the second moving body to move based on the speed distribution information acquired from the information transmitting device, and to guide an optimum speed.

  In addition, the information presentation device according to one embodiment of the present invention is arranged in the above-described second mobile object, the distribution information acquisition unit acquires the speed distribution information, and the display unit displays the current movement of the second mobile object. It has a first display unit for displaying speed by pointing to a position on the scale, and a second display unit for displaying speed distribution information in association with the first display unit. By doing so, for example, speed distribution information can be displayed in association with a speed meter. Therefore, it is possible to easily draw the user's attention.

  In the information transmitting method according to an embodiment of the present invention, in the collecting step, the position information on the moved position and the first speed information on the moving speed of the first moving body at each of the moved positions are collected, and the generating step includes Generating speed distribution information indicating a distribution of a moving speed at a predetermined position based on the position information and the first speed information collected by the collection unit, and, in a transmitting step, in response to a request from the second moving body, Transmit speed distribution information. By doing so, it is possible to generate and transmit speed distribution information based on the first speed information of the plurality of first moving objects, so that the influence of a specific moving object can be obtained by referring to the speed distribution information. The optimum speed can be guided without the need.

  Further, an information transmission program that causes a computer to execute the above-described information transmission method may be used. By doing so, it is possible to generate and transmit speed distribution information based on the first speed information of the plurality of first moving objects by using a computer. The optimum speed can be guided without being affected by the body. Further, since the program is executed by a computer, dedicated hardware or the like is not required, and the program can be installed and functioned on a general-purpose information processing device or the like.

  Further, the above-described information transmission program may be stored in a computer-readable recording medium. By doing so, the program can be distributed as a single unit in addition to being incorporated into the device, and the version can be easily upgraded.

  Further, the information presentation method according to an embodiment of the present invention is executed by the above-described second moving body, acquires speed distribution information in a distribution information acquisition step, and acquires a velocity distribution information acquired by a distribution information acquisition unit in an estimation step. Based on the distribution information, an appropriate speed suitable for the case where the second mobile body moves at a predetermined position is estimated, and information on the appropriate speed is presented in a presentation step. With this configuration, it is possible to estimate a speed suitable for the second moving body to move based on the speed distribution information acquired from the information transmitting device, and to guide an optimum speed.

  Further, the information presentation method may be an information presentation program that is executed by a computer. By doing so, it is possible to estimate a speed suitable for the second moving body to move based on the speed distribution information acquired from the information transmitting device by using the computer, and to guide the optimum speed. it can. Further, since the program is executed by a computer, dedicated hardware or the like is not required, and the program can be installed and functioned on a general-purpose information processing device or the like.

  Further, the above-described information presentation program may be stored in a computer-readable recording medium. By doing so, the program can be distributed as a single unit in addition to being incorporated into the device, and the version can be easily upgraded.

  Further, the information presentation method according to an embodiment of the present invention is executed by the above-described second moving body, acquires speed distribution information in a distribution information acquisition step, and displays the second movement on a first display unit in a display step. The current moving speed of the body is displayed by pointing to a position on the scale, and the speed distribution information is displayed on the second display in association with the first display. By doing so, for example, speed distribution information can be displayed in association with a speed meter. Therefore, it is possible to easily draw the user's attention.

  Further, the information presentation method may be an information presentation program that is executed by a computer. By doing so, the speed distribution information can be displayed in association with, for example, a speedometer using a computer. Therefore, it is possible to easily draw the user's attention. Further, since the program is executed by a computer, dedicated hardware or the like is not required, and the program can be installed and functioned on a general-purpose information processing device or the like.

  Further, the above-described information presentation program may be stored in a computer-readable recording medium. By doing so, the program can be distributed as a single unit in addition to being incorporated into the device, and the version can be easily upgraded.

  An information transmitting apparatus and an information presenting apparatus according to a first embodiment of the present invention will be described with reference to FIGS. The in-vehicle device 10 is arranged in a car or the like as a first moving body, and transmits the position of the own vehicle and speed information at the position to the server 20 as own vehicle information. In addition, the in-vehicle device 10 is arranged in a plurality of first moving objects as shown in FIG.

  The server 20 as an information transmitting device generates speed distribution information 23a, which will be described later, based on the position of the vehicle acquired from the plurality of in-vehicle devices 10 and the weather server 40, speed information at the position, and weather information such as weather. . Then, an appropriate speed is estimated from the speed distribution information 23a in response to a request from the vehicle-mounted device 30, and transmitted together with the speed distribution information 23a.

  Although the server 20 is configured by one server in FIG. 1, each component may be provided in another server, such as an arithmetic server and a distribution server. That is, the server 20 may be composed of a plurality of server groups. Of course, each server may be installed at a position separated from each other and configured to communicate with each other through a network or the like.

  The in-vehicle device 30 as an information presenting device is arranged in an automobile or the like as the second moving body, acquires the appropriate speed and speed distribution information 23a at a position where the vehicle will travel from the server 20, and presents it. The in-vehicle device 30 transmits the position of the own vehicle and the speed information at the position to the server 20 as in the in-vehicle device 10. Although only one in-vehicle device 30 (second mobile body) is shown in FIG. 1, a plurality of in-vehicle devices 30 may be provided.

  The weather server 40 transmits environmental information such as weather and temperature at a predetermined position in response to a request from the server 20.

  The in-vehicle devices 10 and 30 and the weather server 40 are connected to the server 20 by wire or wirelessly via the Internet, a public line, or a dedicated line. In the present embodiment, the in-vehicle devices 10 and 30 will be described as being arranged in an automobile, but may be arranged in a moving object such as a motorcycle or a bicycle. In addition, the moving body on which the in-vehicle devices 10 and 30 are arranged is a moving body that can move at the same type or near speed, such as between cars or bicycles, to present an appropriate speed as described later. Is preferred.

Next, the configuration of each device described above will be described. The in-vehicle device 10 includes a GPS unit 11, a vehicle information generation unit 12, and a communication unit 13.

  The GPS unit 11 receives radio waves transmitted from a plurality of GPS (Global Positioning System) satellites as is well known, obtains position information of the vehicle, and outputs the position information to the vehicle information generation unit 12. In the present embodiment, an example is shown in which the GPS unit 11 is provided integrally with the in-vehicle device 10. However, the GPS unit 11 may be configured as a separate body and be detachable from the in-vehicle device 10. In this embodiment, the GPS is used as a means for detecting the position of the own vehicle. However, the present invention is not limited to this, and another method such as an independent sensor may be used.

  The vehicle information generation unit 12 is configured by a CPU (Central Processing Unit) having a memory such as a RAM (Random Access Memory) and a ROM (Read Only Memory). The own vehicle information generation unit 12 generates vehicle information including vehicle speed information at the position of the own vehicle input from the GPS unit 11 and operation information of a wiper, a headlight, and the like, together with the own vehicle position information, as own vehicle information. . The generation of the own vehicle information may be performed, for example, at fixed time intervals or fixed distance intervals. That is, the host vehicle information includes position information on the moved position and first speed information on the moving speed of the first moving body at each of the moved positions.

  The communication unit 13 transmits the vehicle information generated by the vehicle information generation unit 12 to the server 20.

  The server 20 includes a communication unit 21, a generation unit 22, and a storage unit 23.

  The communication unit 21 as a collection unit and a transmission unit receives the vehicle information from the in-vehicle device 10 and the in-vehicle device 30, and receives the environment information from the weather server 40. In addition, the communication unit 21 transmits the appropriate speed information and the speed distribution information 23a generated by the generation unit 22 to the in-vehicle device 30. That is, the position information and the first speed information are collected. They also collect environmental information. Furthermore, the speed distribution information 23a is transmitted in response to a request from the second mobile unit.

  The generating unit 22 as a generating unit and an estimating unit is configured by a CPU, for example, like the own vehicle information generating unit 12. The generation unit 22 generates speed distribution information 23a, which will be described later, based on the own vehicle information and the environment information collected by the communication unit 21, and stores the generated speed distribution information 23a in the storage unit 23. Then, in response to a request from the in-vehicle device 30, the appropriate speed at the destination of the moving body in which the in-vehicle device 30 is located is estimated from the speed distribution information 23a.

  The storage unit 23 is configured by a nonvolatile storage medium such as a hard disk or a semiconductor memory. The storage unit 23 stores the speed distribution information 23a generated by the generation unit 22, other information, and the like.

  The in-vehicle device 30 includes a communication unit 31, an interpretation unit 32, a GPS unit 33, a presentation unit 34, and a vehicle information generation unit 35.

  The communication unit 31 as the distribution information acquisition unit receives the appropriate speed information and the speed distribution information 23a from the server 20. In addition, the communication unit 31 transmits the own vehicle information generated by the own vehicle information generating unit 35 to the server 20.

  The interpretation unit 32 outputs the appropriate speed information and the speed distribution information 23a received by the communication unit 31 to the presentation unit 34.

  The presentation unit 34 presents the appropriate speed information and the speed distribution information 23a input from the interpretation unit 32 to, for example, a driver. The presentation method will be described later.

  The GPS unit 33 is similar to the GPS unit 11 of the vehicle-mounted device 10. The own-vehicle information generating unit 35 is mounted on the vehicle except that the own-vehicle information includes identification information (unique information such as an ID) for identifying the vehicle (second mobile body) in which the in-vehicle device 30 is arranged. This is the same as the own vehicle information generation unit 12 of the device 10. This identification information is referred to when estimating the appropriate speed described later. That is, in the present embodiment, the vehicle on which the in-vehicle device 30 is disposed also has a function as the first moving body.

  Next, the speed distribution information 23a generated from the vehicle information generated by the in-vehicle devices 10 and 30 and transmitted to the server 20 will be described. The speed distribution information 23a is information indicating a speed distribution of an automobile or the like at a certain point (position) on a road. That is, it is information indicating the distribution of the moving speed at the predetermined position. A specific example will be described with reference to FIGS.

  FIG. 2 is a graph showing a curved road, and FIG. 3 is a graph showing the distribution of the minimum speed when passing between the start point and the end point of the curve shown in FIG. The generation unit 22 generates a distribution as shown in FIG. 3 as the speed distribution information 23a as needed from the vehicle information collected from the on-vehicle devices 10 and 30, and stores the distribution in the storage unit 23. When the speed distribution information 23a is stored in the storage unit 23, it is needless to say that the speed distribution information 23a is stored in association with the position information. In addition, attribute information such as a curve and an intersection may be added. The attribute information can be added, for example, by storing map information in the storage unit 23 and referring to the map information.

  The speed distribution information 23a may be generated for all points (positions) on the road, or may be generated only for specific points. For example, the generation unit 22 may generate the speed distribution information 23a for points that are statically specified by referring to the map information (curve points, points with narrow road widths, points with poor visibility, etc.).

  In addition, the generation unit 22 acquires actual information (information on the traveling speed, information on the position where the accident occurred, etc.), and refers to these points to dynamically specify a point (a change in the speed is steep). Speed distribution information 23a may be generated for a point, a point where sudden braking has occurred, a point where an accident has occurred, and the like. Such a dynamically specified point is a point specified by estimating the existence of a risk factor that cannot be read only by referring to the map information from collected data or the like.

  In addition, the generation unit 22 counts the points manually set by the user of the apparatus and the voting from other users of the apparatus (point information that the user perceives to need attention in traveling) in other vehicles. The speed distribution information 23a may be generated for a point such as a point specified by the.

  The speed distribution information 23a may be generated for each weather such as fine weather or rainy weather or for each temperature such as 0 ° C. or 30 ° C. based on weather information such as weather and temperature received from the weather server 40. Also, it may be generated for each time zone, such as at night or during the day. For the time zone, the server 20 may have a clock function, or the vehicle information may include time information. That is, the speed distribution information may be generated based on the environment information.

  Further, the speed distribution information 23a may be generated for each vehicle type, weight, or size of the vehicle. Of course, the speed distribution information 23a may be generated for each type of moving object such as a car, a motorcycle, and a bicycle. The information on the type of the moving body (vehicle type, weight, size, type of the moving body, and the like) may be included in the own vehicle information. That is, the collecting unit may further collect information on the type of the first moving body, and the generating unit may further generate speed distribution information based on the information on the type of the first moving body.

  Further, the weather may be identified by the wiper operation information included in the vehicle information. Further, the time zone may be identified by the operation information of the headlight included in the vehicle information.

  In addition, when the speed distribution information 23a is generated according to the weather or the vehicle type based on the weather information or the information about the type of the moving object, the speed distribution information 23a is simply generated according to the fine weather, the rainy weather, the small car, the large car, or the like. Not only can it be generated, but also by comparing the speed distribution information 23a at the same position, the degree of attention of the road can be estimated.

  For example, it can be estimated that the road surface is rough at a position where there are many low-speed cars during bad weather compared to when it is fine. In addition, it can be estimated that a road where a large vehicle tends to pass at a lower speed than a small vehicle has a narrow road width. Such information may be included in the speed distribution information as caution information. This caution information is not limited to direct information such as a rough road surface or a narrow road width, and may be information indicating a caution level of large, medium, small, numerical value, color, or the like.

  In addition, the caution information compares the speed distribution information 23a at the start point of the curve with the speed distribution information 23a of the lowest speed. If the speed difference is large, it is estimated that rapid deceleration is being performed, and the caution level is determined. May be higher.

  As described above, the generation unit 22 further generates the attention information at a predetermined position based on the plurality of speed distribution information 23a (for example, fine weather and rainy weather, small and large vehicles, the speed at the starting point and the minimum speed). You may.

  Next, a method of estimating an appropriate speed from the speed distribution information 23a will be described with reference to FIG. As shown in FIG. 4, from the speed distribution information 23a of the position X and the position Y where the vehicle (own vehicle) in which the in-vehicle device 30 is arranged has traveled in the past, the speed when the vehicle has passed is obtained from the identification information. By searching, the position in the speed distribution is specified. In the example of FIG. 4, the light passes through the distribution at a speed lower than the center. From this, it is presumed that the vehicle is being driven carefully or inexperienced. Therefore, the appropriate speed at the approaching position A estimates a speed lower than the center.

  Here, the tendency of the moving speed of the second moving body is determined based on the second speed information acquired by the second speed acquiring unit and the speed distribution information at a position corresponding to the second speed information in the claims. The part corresponds to searching for the speed at the time when the vehicle has passed from the identification information from the speed distribution information 23a of the positions X and Y where the vehicle has traveled in the past, and specifying the position in the speed distribution. A portion for estimating an appropriate speed suitable for the case where the second mobile body moves at the predetermined position based on the determined tendency and the speed distribution information at the predetermined position in the claims is the example of FIG. Since the vehicle is passing at a speed lower than the center with respect to the distribution, the own vehicle is estimated to be cautious driving or immature driving, and the appropriate speed in the approaching curve (position A) is higher than the center. Estimating a lower speed also corresponds.

  In this estimating method, the past traveled positions X and Y used when estimating the appropriate speed of the location A may be different from the location A, or the location A may be traveled in the past. If there is, the position A may be included. Of course, the speed distribution information 23a may be estimated not only at two places but also at one place or three or more places. The positions X and Y may be selected at random, or a position having a similar condition such as the radius of curvature or the number of lanes at the position A may be selected. Alternatively, the average value of the positions of all the speed distribution information 23a that have traveled in the past may be updated every time the vehicle travels, and the average value may be estimated from the average value.

  In this estimation method, an appropriate speed for each driver may be estimated. In this case, for example, the device may have an identification unit for identifying the driver, and the speed of the own vehicle may be managed and stored for each identified driver.

  Next, an example of presentation of the speed distribution information 23a and the appropriate speed information in the presentation unit 34 will be described. FIG. 5 is a presentation example of the speed distribution information 23a. FIG. 5A shows a meter 34a in which a scale 34b is displayed in a substantially elliptical shape, and a display frame 34e is provided on the outer periphery of the scale 34b of a known speedometer 34d which indicates the speed of the vehicle with a pointer 34c. The display frame 34e is a display device provided on the outer periphery of the scale 34b, and is constituted by, for example, a liquid crystal display or the like, and displays light and dark and colors according to the speed distribution information 23a as described later.

  The meter 34a as a display unit displays a range of distribution on a display frame 34e as a second display unit. For example, a speed with a large distribution is a bright display, and a speed with a small distribution is a dark display. By doing so, the speed distribution information can be intuitively recognized in accordance with the own vehicle speed indicated by the speedometer as the first display unit.

  Further, the color may be changed in comparison with the own vehicle speed. For example, in FIG. 5A, the vehicle speed is slower than the speed with a large distribution, so that the vehicle is green, and when the vehicle speed is faster than the speed with a large distribution, as in FIG. 5B, the color is red. Here, the determination that the own vehicle speed is lower than the distribution speed is made when the own vehicle speed is estimated to be a sufficiently safe speed from the speed distribution (for example, a speed within the lower 30% of the speed distribution). The determination that the own vehicle speed is “higher” than the distribution speed is made when the own vehicle speed is estimated to be a dangerous speed from the speed distribution (for example, a speed within the upper 30% of the speed distribution). Things.

  Also, the presentation of the speed distribution information 23a can display various traveling information such as an odometer, a trip meter, and an alarm provided in a meter having a speedometer, a tachometer, or the like as it is, with the graph shown in FIG. It may be displayed on a suitable display device. Alternatively, the information may be displayed on a display device provided on an instrument panel in the vehicle compartment. Alternatively, when a head-up display (HUD) is provided, it may be displayed on the HUD.

  The appropriate speed information may be displayed in a mark or the like on the display frame 34e shown in FIG. 5 in association with the scale of the speedometer, or may be a display device in the meter or a display device provided on the instrument panel. Or on a HUD or the like. Further, the appropriate speed information may be output by voice.

  Next, operations of the server 20 and the vehicle-mounted device 30 will be described with reference to flowcharts. 6 and 7 are flowcharts of the server 20. This flowchart is executed by the generation unit 22.

  FIG. 6 is a flowchart of an operation for generating speed distribution information. First, in step S11 as a collection process, the vehicle information transmitted from the vehicle-mounted device 10 or the vehicle-mounted device 30 is collected, and the process proceeds to step S12. This step is executed each time a signal is received from each in-vehicle device because the transmission timing differs for each in-vehicle device (mobile body). In this step, the weather information is also collected from the weather server 40.

  Next, in step S12 as a generation process, the speed distribution information 23a is generated from the own vehicle information collected in step S11, and the process proceeds to step S13. That is, the vehicle speed information having the same position information from the own vehicle information is included in the distribution shown in FIG. This step may be performed each time step S11 is executed, or may be collectively processed at predetermined time intervals with respect to the vehicle information collected during that time.

  Next, in step S13, the speed distribution information 23a generated in step S11 is stored in the storage unit 23.

  The server 20 always updates the speed distribution information 23a by sequentially executing the flowchart of FIG. In addition, the period of the vehicle information used to generate the speed distribution information 23a may be limited to a period such as the past one month. In this way, it is possible to generate the speed distribution information 23a according to changes in road conditions such as seasons and road works.

  FIG. 7 is a flowchart of an operation of estimating and transmitting an appropriate speed to the in-vehicle device 30 (second mobile body). First, in step S21, it is determined whether or not the vehicle information from the in-vehicle device 30 has been received via the communication unit 21, and if it has been received (in the case of YES), the process proceeds to step S22, and if it has not been received ( If NO), this step is repeated. The own vehicle information received in this step may be used for generating the speed distribution information 23a according to the flowchart of FIG.

  Next, in step S22, the moving direction (moving route) is estimated based on the position information included in the own vehicle information received in step S21 and the own vehicle information up to that time, and speed distribution information 23a is generated in the moving direction. It is determined whether or not the approaching position is approaching. If the approaching position is approaching (in the case of YES), the process proceeds to step S23, and if not (in the case of NO), the process returns to step S21. That is, it is determined whether the vehicle is approaching the position where the speed distribution information 23a is generated, such as a curve or an intersection, and the appropriate speed is estimated only when approaching. In addition, as a criterion of whether or not the vehicle is approaching, the distance may be set uniformly, or the distance may be set according to the vehicle speed included in the own vehicle information.

  Next, in step S23, it is determined whether or not the estimation of the appropriate speed is possible. If it is possible (YES), the process proceeds to step S24. If not (NO), the process proceeds to step S26. Since the appropriate speed is estimated from past traveling as described above, it cannot be estimated when there is no past traveling history (vehicle speed information) such as at the beginning when the vehicle-mounted device 30 is arranged. In that case, only the speed distribution information 23a is transmitted as described later.

  Next, in step S24, an appropriate speed is estimated, and the process proceeds to step S25. The appropriate speed is estimated from the position in the speed distribution information 23a of the position where the vehicle has traveled in the past, as shown in FIG.

  Next, in step S25 as a transmission step, the appropriate speed information estimated in step S24 and the speed distribution information 23a at the position are transmitted to the in-vehicle device 30 via the communication unit 21.

  In step S26, since the proper speed could not be estimated, only the speed distribution information 23a is transmitted to the in-vehicle device 30 via the communication unit 21.

  8 and 9 are flowcharts of the in-vehicle device 30. FIG. 8 is a flowchart of the operation of transmitting the own vehicle information, which is executed by the own vehicle information generating unit 35. This operation is the same for the in-vehicle device 10. First, in step S31, it is determined whether or not it is the transmission timing of the vehicle information. If it is the transmission timing (in the case of YES), the process proceeds to step S32. If it is not the transmission timing (in the case of NO), this step is performed. repeat.

  Next, in step S32, the vehicle information is generated and transmitted to the server 20 via the communication unit 31.

  FIG. 9 is a flowchart of an operation for presenting an appropriate speed, which is executed by the interpretation unit 32. First, in step S41 as a distribution information acquisition step, the appropriate speed information and the speed distribution information 23a are received from the server 20 via the communication unit 31, and the process proceeds to step S42.

  Next, in step S42, appropriate speed information and speed distribution information 23a as a display process are presented. That is, as described above, the information is displayed in the display frame 34e, the inside of the meter, or the like, and the appropriate speed information is output by voice.

  In the above description, the in-vehicle device 30 only displays or outputs the appropriate speed. However, for example, the interpreter 32 compares the vehicle speed with the vehicle speed information included in the vehicle information so that the vehicle speed is lower than the appropriate speed. The appropriate speed information may be presented only when the vehicle is fast.

  According to the present embodiment, the server 20 is configured such that the communication unit 21 collects own vehicle information from each of the plurality of in-vehicle devices 10, and the generation unit 22 generates the vehicle speed information and the position information collected by the communication unit 21. Based on this, speed distribution information 23a indicating the distribution of the moving speed at a predetermined position is generated and transmitted in response to a request from the vehicle-mounted device 30. By doing so, the speed distribution information 23a based on the vehicle speed information from the plurality of in-vehicle devices 10 can be generated, so that it is possible to avoid being affected by a specific moving object.

  Further, the generation unit 22 generates a plurality of pieces of speed distribution information 23a, and from the in-vehicle device 30, the vehicle speed information when the second mobile body in which the in-vehicle device 30 is disposed has traveled in the past is included in the speed distribution information 23a. Determine the position or tendency. Then, the generation unit 22 estimates the appropriate speed of the approaching position based on the determined tendency and the speed distribution information at the position where the second mobile body is approaching, and the communication unit 21 transmits the appropriate speed along with the speed distribution information 23a. Transmit proper speed information. In this way, it is possible to estimate an appropriate speed when the second mobile body travels at a position where the second mobile body is currently approaching from the speed distribution information 23a of the position where the second mobile body has traveled in the past. Therefore, it is possible to guide the speed according to the tendency of the second moving body.

  Further, the communication unit 21 further acquires environment information from the weather server 40, and the generation unit 22 further generates speed distribution information 23a based on the environment information. By doing so, the speed distribution information 23a can be generated in consideration of environmental information such as weather, temperature, and traveling time, and a more optimal speed can be guided.

  In addition, the communication unit 21 further obtains information on the type of the first mobile unit on which the in-vehicle device 10 is arranged, such as the vehicle type and the weight or the size of the vehicle, and the generation unit 22 further determines the type of the first mobile unit. The speed distribution information 23a is generated based on the information on the speed distribution. In this manner, the speed distribution information 23a can be generated in consideration of the information on the type, such as the vehicle type, the size, and the weight, of the first moving body, and a more optimal speed can be guided.

  In addition, the in-vehicle device 30 is disposed on the second mobile unit, the communication unit 31 acquires the speed distribution information 23a, and the meter 34a indicates the current traveling speed of the second mobile unit on the position on the scale 34b. And a display frame 34e for displaying the speed distribution information 23a on the outer periphery of the speedometer 34d. By doing so, the speed distribution information 23a can be displayed in association with the speedometer 34d. Therefore, the driver can be easily alerted.

  In the above description, the server 20 determines whether it is necessary to generate the appropriate speed or to transmit the speed distribution information 23a, assuming that the transmission of the vehicle information from the in-vehicle device 30 is a request from the in-vehicle device 30. The device 30 may make a request separately from the transmission of the vehicle information. For example, when the vehicle-mounted device 30 has map information and a curve or an intersection approaches on a road on which the vehicle is traveling, the interpretation unit 32 sends a request for the appropriate speed information and the speed distribution information 23a to the communication unit 31. Via the server 20. This request includes position information such as a curve and an intersection requesting the appropriate speed information and the speed distribution information 23a. When receiving the request, the server 20 estimates appropriate speed information of the position information included in the request and transmits the estimated speed information to the vehicle-mounted device 30 together with the speed distribution information 23a.

  Further, when the in-vehicle device 30 makes a request separately from the transmission of the vehicle information, the information of the position where the speed distribution information 23a is generated may be periodically received from the server 20. In this way, it is possible to request the appropriate speed information and the speed distribution information 23a even at a position that cannot be understood from a map such as a road construction or a place where accidents frequently occur.

  Next, an information transmitting apparatus and an information presenting apparatus according to a second embodiment of the present embodiment will be described with reference to FIG. The same parts as those in the first embodiment are denoted by the same reference numerals, and the description is omitted.

  In the first embodiment, the server 20 estimates the appropriate speed. In the present embodiment, the in-vehicle device 30 estimates the appropriate speed. The configuration is the same as in FIG.

  In the present embodiment, the server 20 transmits only the speed distribution information 23a in response to a request from the vehicle-mounted device 30. In the in-vehicle device 30, as shown in FIG. 4, the interpreting unit 32 searches the speed distribution information 23a at an arbitrary position where the vehicle has traveled in the past from the identification information to find the speed at which the own vehicle has passed. The position in the distribution of. Then, an appropriate speed at the approaching position is estimated. That is, the interpretation unit 32 functions as an estimation unit that estimates an appropriate speed suitable for the case where the second mobile body moves at the predetermined position, based on the speed distribution information acquired by the distribution information acquisition unit.

  In the present embodiment, in order to perform the estimation as shown in FIG. 4 by the in-vehicle device 30, when the speed distribution information 23a is received, the vehicle speed information of the own vehicle at the position indicated by the speed distribution information 23a is interpreted in the interpretation unit 32 or It is stored in a memory or the like (not shown). Then, the position of the distribution is specified from the received speed distribution information 23a and the vehicle speed information of the own vehicle. Then, the tendency is determined from the position of the distribution.

  FIG. 10 shows a flowchart of an operation of estimating and presenting an appropriate speed in the vehicle-mounted device 30. This flowchart is executed by the interpretation unit 32. First, in step S51 as a distribution information acquisition step, the speed distribution information 23a is received from the server 20 via the communication unit 31, and the process proceeds to step S52.

  Next, in step S52, it is determined whether or not the estimation of the appropriate speed is possible. If it is possible (YES), the process proceeds to step S53, and if not (NO), the process proceeds to step S55. In this step, as in step S23 in FIG. 7, the appropriate speed is estimated from the past running, so that it cannot be estimated if there is no past running history (vehicle speed information) such as at the beginning when the in-vehicle device 30 is arranged. In that case, only the speed distribution information 23a is presented as described later.

  Next, in step S53 as an estimation step, an appropriate speed is estimated, and the process proceeds to step S54. The appropriate speed is estimated from the position in the speed distribution information 23a of the position where the vehicle has traveled in the past, as described above.

  Next, in step S54 as a presentation step, the appropriate speed (information) and the speed distribution information 23a are presented, and the process proceeds to step S56. That is, as in the first embodiment, the information is displayed in a meter or the like, and the appropriate speed information is output by voice.

  On the other hand, in step S55, since the appropriate speed could not be estimated, only the speed distribution information 23a is presented, and the process proceeds to step S56.

  Next, in step S56, the presented speed distribution information 23a and the corresponding vehicle speed information are stored. The speed distribution information 23a and the vehicle speed information stored in this step are used for estimating the appropriate speed from the next time.

  Instead of step S56, a trend in the distribution may be analyzed from the presented speed distribution information 23a and the corresponding vehicle speed information, and the analysis result may be stored. That is, the position of the vehicle speed information stored in step S56 in the corresponding speed distribution information is analyzed. In this case, only this analysis result is saved, and there is no need to save the speed distribution information and the vehicle speed information. If only the analysis result is stored, it is possible to estimate an appropriate speed in step S53. Alternatively, similarly to the first embodiment, the average value of the positions of all the speed distribution information 23a that have traveled in the past may be updated and stored sequentially each time the vehicle travels. In this case, it is not necessary to save the analysis result for each position.

  According to the present embodiment, in the in-vehicle device 30 arranged in the second mobile unit, the communication unit 31 acquires the speed distribution information 23a, and the interpreting unit 32 performs the processing based on the speed distribution information 23a acquired by the communication unit. Then, the appropriate speed suitable for the case where the second mobile body moves at a predetermined position is estimated, and the presentation unit 34 presents the appropriate speed information. By doing so, it is possible to estimate a speed suitable for the second moving body to move based on the speed distribution information 23a acquired from the server 20, and to guide the optimum speed.

  In the second embodiment, when the request for the speed distribution information 23a is determined and transmitted by the in-vehicle device 30, the vehicle information need not be transmitted, and the vehicle information generation unit 35 can be omitted.

  Further, in the above-described two embodiments, the estimation is performed when the appropriate speed can be estimated. However, only the speed distribution information 23a may be transmitted or presented. In this case, the vehicle-mounted device 30 only needs to request the speed distribution information 23a, and transmission of the vehicle information is not essential.

  Further, the in-vehicle device 30 and the navigation device described in the embodiment may be linked with each other, and the speed distribution information 23a and the appropriate speed information may be displayed on a route guided by the navigation device.

  In addition, the appropriate speed information not only transmits and presents a numerical value of speed, but also indicates that the speed should be paused when the minimum speed tends to be 0 km / h (pause) at a position where there is no signal. It may be presented.

  Further, the present invention is not limited to the above embodiment. That is, those skilled in the art can make various modifications in accordance with conventionally known knowledge without departing from the gist of the present invention. Such a modification is, of course, included in the scope of the present invention as long as it has the configuration of the information transmitting device and the information presenting device of the present invention.

10 In-vehicle device (first mobile unit)
20 server (information transmission device)
21 communication unit (collection unit, transmission unit, second speed acquisition unit)
22 Generation unit (generation unit, estimation unit)
23a Speed distribution information 30 In-vehicle device (second mobile unit, information presentation device)
31 Communication unit (distribution information acquisition unit)
32 Interpretation unit (estimation unit)
34 Presentation part 34a Meter (display part)
34b Scale 34d Speedometer (first display)
34e display frame (second display unit)
S11 Own vehicle information collection (collection process)
S12 Speed distribution information generation (generation step)
S25 Transmission of speed distribution information and proper speed information (transmission step)
S41 Speed distribution information, proper speed information reception (distribution information acquisition step)
S42 Speed distribution information, proper speed information display (display step)
S51 Speed distribution information reception (distribution information acquisition step)
S53 Proper speed estimation (estimation process)
S54 Speed distribution information and proper speed information presentation (presentation process)

Claims (1)

An information presentation device arranged on a moving body,
A distribution information acquisition unit that acquires velocity distribution information that is a distribution of moving speeds of a plurality of other moving objects at a predetermined position,
A display unit that displays the moving speed of the moving body at the predetermined position and the speed distribution information in association with each other,
An information presentation device comprising:

Images