JP2006125906A - Vehicle traveling state analysis system, method, storage medium for recording program therein, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a traveling state analysis system and a method for acquiring, analyzing, and displaying travel data on a traveling vehicle by using a GPS, and to provide a storage medium for recording a program therein, and the program. <P>SOLUTION: An information processor mounted on the vehicle is characterized by being equipped with a processing part and a storage part while being connected to a GPS receiver. If a point for determining a travel measurement zone is designated while the vehicle is traveling, the processing part obtains this position from the GPS receiver to register this point in the storage part. In the meantime, when the vehicle travels again in the measurement zone, position information on the registered point is referred to at the storage part. When the vehicle is perceived to be traveling in the measurement zone based on determination whether the vehicle has passed through the registered point, the present position of the vehicle is received at prescribed intervals from the GPS receiver to write travel data in the storage part. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a travel state analysis system, a method, a storage medium in which a program is recorded, and a program provision for acquiring travel data of a traveling vehicle using GPS and analyzing and displaying the travel state.

It is widely performed to detect the position of a GPS receiver based on data received effectively from the GPS receiver.
In Japanese Patent Laid-Open No. 11-12558, a GPS receiver is mounted on a vehicle, and data on a travel route is recorded, and when a failure occurs, an attempt is made to locate the failure location and the cause of the failure with reference to the record. The invention to be described is described. In the present invention, the data is displayed as a two-dimensional or three-dimensional image so as to appeal visually.
JP-A-11-125884

  By the way, there are people who travel along the roads by car or motorcycle as a hobby. Such people have a strong interest in improving their driving skills. Therefore, I try to run on the same course many times, and to run with my own satisfaction. If you are a professional racer, you can have other people shoot videos of your run, etc., and use it later as a reflection or consideration. However, it is difficult for a person who travels as a hobby in his spare time to obtain data that can objectively analyze his / her driving unless he / she has enough funds. Therefore, I wouldn't hope if I could record and analyze my running data using cheap and easily available equipment.

If the position and time data of a running vehicle can be obtained using GPS as in the invention disclosed in Japanese Patent Application Laid-Open No. 11-125584, it can be diverted to meet the needs of such people.
However, the invention disclosed in Japanese Patent Application Laid-Open No. 11-12558 does not take into consideration that the vehicle travels repeatedly on the same route. For this reason, it is difficult to travel the course once traveled and collect data for the same section. This is because it is not easy to give an operation instruction to the device so that the measurement is started from the same point every time while the vehicle is running and ended at the same point in view of the speed of the vehicle. Therefore, the present invention has been made to solve the problem that it is possible to automatically obtain travel data of the same section without traveling according to a user's instruction when traveling again in a section that has already traveled.

  Further, from the viewpoint of improving driving technology, it is desirable to be able to appropriately and easily grasp the speed change during traveling, particularly the deceleration / acceleration state during cornering. Therefore, the present invention also has an issue to be solved by superimposing the course shape and speed information so that the characteristics of one's own driving can be understood at a glance.

  The invention according to claim 1 is a vehicle running state analysis system, wherein an information processing device mounted on a vehicle includes a processing unit, a storage unit, an operation unit, and an interface unit, and the information processing device includes a GPS receiver. The processing unit includes a travel data recording processing unit, the storage unit includes a registration point storage unit and a travel data storage unit, and the travel data recording processing unit is configured to operate the operation while the vehicle is traveling. The positions of the two points designated via the unit are acquired from the GPS receiver via the interface unit, and the registered points are stored as the measurement start point and the measurement end point of the travel measurement section. On the other hand, when the vehicle travels again in the travel measurement section, the travel data recording processing means reads the measurement start point from the registered point storage means. From the GPS receiver at a predetermined interval from when it is determined that the vehicle has passed the measurement start point until it is determined that the vehicle has passed the measurement end point. The position information and the time information are written in the travel data storage means.

Vehicles include automobiles and motorcycles.
The travel measurement section is a section that is a target for collecting position information and time information, which are travel data, using GPS. On the premise that the vehicle travels twice or more in the same section, both ends of the section are designated and stored in this position only when traveling for the first time. In the second and subsequent runs, the system according to the present invention automatically collects the running data of the section by referring to both ends of the stored section before running.
The invention according to claim 1 is directed to a so-called open course in which the start and the goal are different. However, it is possible to include a round-trip course that travels to the start immediately after reaching the goal.

  The invention according to claim 2 is a vehicle running state analysis system, wherein an information processing device mounted on a vehicle includes a processing unit, a storage unit, an operation unit, and an interface unit, and the information processing device includes a GPS receiver, The processing unit includes a travel data recording processing unit, the storage unit includes a registration point storage unit and a travel data storage unit, and the travel data recording processing unit is configured to operate the operation unit during travel of the vehicle. The position of one point designated via the GPS unit is acquired from the GPS receiver via the interface unit, and the position of this point is written in the registered point storage means as one point of the lap driving measurement section, while the vehicle When the vehicle travels again in the round travel measurement section, the travel data recording processing means refers to the location information of the one point from the registration point storage means, and the vehicle The position information and time information received from the GPS receiver at a predetermined interval from when it is determined that the vehicle has passed the spot until when it is determined that the vehicle has passed the spot again are used as travel data for one round. It is written in the travel data storage means.

  The invention according to claim 2 is intended for a loop course that repeatedly circulates the same course, such as a circuit.

  According to a third aspect of the present invention, the travel data recording processing means is provided when the distance between the registration point written in the registration point storage means and the current position of the traveling vehicle is equal to or less than a predetermined threshold value. The vehicle determines that the vehicle has passed the registration point, and when the vehicle exceeds the threshold, the distance between the line segment whose end point is the current position of the vehicle and the immediately preceding position and the registration point is a predetermined threshold. In the following cases, when it is determined that the vehicle has passed the registration point, and it is determined that the vehicle has passed the registration point at the current position, the travel data storage means stores the registration point that means the passage of the registration point. The passing mark is recorded together with the current position.

  It is extremely difficult to pass the same point registered during the first run during the second and subsequent runs. Therefore, when passing a point within a permissible range from the registered point, it is assumed that the registered point has been passed.

  According to a fourth aspect of the present invention, in the third aspect of the invention, the processing unit includes a traveling state analysis processing unit, and the traveling state analysis processing unit stores traveling data stored in the traveling data storage unit. , While calculating the travel distance, travel time, average / maximum / minimum speed of the travel measurement section, and calculating the time and speed during corner travel, the weight of the vehicle was input via the operation unit In this case, the output horsepower during traveling is calculated.

  According to a fifth aspect of the present invention, in the invention according to the fourth aspect, the processing unit includes a traveling state display processing unit, and the traveling state display processing unit stores the traveling data stored in the traveling data storage unit. Based on the position information, three-dimensional image data of the shape of the travel route is generated, the generated image data is output to the display unit, and the point with the registration point passing mark is displayed so that it can be visually recognized. It is characterized by doing.

  According to a sixth aspect of the present invention, in the fifth aspect of the present invention, the traveling state display processing unit displays a speed change state superimposed on the shape display of the traveling route on the display unit. Features.

  The invention according to claim 7 is the invention according to claim 5, wherein the traveling state display processing means is a three-dimensional image displayed on the display unit according to an operation instruction signal input via the operation unit. Is changed and displayed as an image viewed from an arbitrary angle.

  The invention according to claim 8 is the invention according to claim 4, wherein the processing unit includes a traveling state display processing unit, and the traveling state display processing unit stores the traveling data stored in the traveling data storage unit. Based on the position information, two-dimensional image data of the shape of the travel route is generated, the generated image data is output to the display unit, and the point with the registration point passing mark is displayed so that it can be visually recognized. It is characterized by doing.

  The invention according to claim 9 is the invention according to claim 5 or 8, wherein the traveling state display processing means visually recognizes a point where valid data can be acquired from a GPS receiver with respect to the display unit. The section is displayed in such a way that valid data cannot be obtained, and is displayed as a line segment.

  The invention according to claim 10 is a vehicle running state analyzing method, wherein the information processing device is designated at one or two designated points while the vehicle is mounted with the information processing device connected to the GPS receiver. Acquiring the position information of the GPS receiver from the GPS receiver and storing it as a registration point, and the traveling measurement measurement section specified at the one registration point, or the measurement measurement section specified at the two registration points, When the vehicle travels again, position information and time information during travel are acquired from the GPS receiver at predetermined intervals and stored as travel data; travel distance, travel time, travel based on the travel data The method includes a step of analyzing a traveling state including a speed, and a step of displaying the shape of the traveling route and the traveling state in association with each other on the screen of the information processing apparatus.

  The invention described in claim 11 is a recording medium on which a program for causing a computer to execute the method of claim 10 is recorded.

  The invention described in claim 12 is a program for causing a computer to execute the method of claim 10.

  The system can automatically collect traveling data of the same traveling section from the second traveling only by registering the position information of one or two points once during the first traveling. By analyzing and examining the collected data, the user can judge the degree of progress in driving technology by comparing the driving data with the characteristics and problems of his / her driving technology and the traveling date and time. As a result, the user can imagine efficient traveling in the traveling section.

  In addition, since the shape of the traveling section and the traveling speed are superimposed and displayed by a two-dimensional or three-dimensional image, it is possible to easily analyze one's own traveling. By referring to this display image, it is possible to confirm at a glance, for example, a change in running when a certain part is equipped, a braking start point, a release point, and the like. In addition, since the entire three-dimensional image can be rotated by a mouse operation, the traveling locus from any angle can be seen, and detailed information about the traveling section can be confirmed.

The configuration of the system according to the embodiment of the present invention will be described with reference to FIG. In the following description, a user of this system, that is, a person who runs on a vehicle is described as a “user”.
The system of this embodiment includes a GPS receiver 1 and an information processing device 2 mounted on a vehicle. The information processing apparatus 2 is preferably a personal computer (hereinafter referred to as “PC”) that can be mounted on a vehicle. Therefore, hereinafter, the information processing apparatus 2 is referred to as PC2.

The GPS receiver 1 includes an antenna and an interface unit between the PC 2.
The GPS receiver 1 is a device that obtains the position of a vehicle (that is, the position of the GPS receiver 1) using GPS (Global Positioning System), and is transmitted from a plurality of GPS satellites (not shown). The current position is calculated based on the relative time difference between the received GPS signals. The latitude / longitude / altitude information and time information of the current position are continuously sent to the PC 2 at regular intervals.
In addition, the GPS receiver 1 also transmits information for identifying whether the data is valid or invalid.
The data transmission interval depends on the capability of the GPS system, but is 1 second in a GPS system having the capability of 1 PPS.

The PC 2 includes an interface unit 3 with the GPS receiver 1, a processing unit 4, a storage unit 5, an operation unit 6, and a display unit 7.
The interface unit 3 of the PC 2 receives the data transmitted from the GPS receiver 1 and outputs it to the processing unit 4.

The processing unit 4 includes a travel data recording processing unit 4a, a travel state analysis processing unit 4b, a travel state display processing unit 4c, and the like.
Note that FIG. 1 is a block diagram that focuses on the functions of each unit, but does not illustrate each means of the processing unit 4, the control unit (not shown) of the operation unit 6 and the display unit 7, and the like. It can be realized by a CPU (Central Processing Unit).

The storage unit 5 includes a registration point storage unit 5a, a travel data storage unit 5b, a program storage unit 5c, an internal memory 5d, and the like.
As the storage unit 5, an external storage medium such as a CD-ROM or a floppy (registered trademark) disk, a hard disk built in the PC 2, a RAM, or the like can be used.

The registration point storage means 5a constituting the storage unit 5 stores the position information of the measurement start / end points of the section specified by the user during traveling.
The travel data storage means 5b stores latitude / longitude / altitude information and time information from the GPS receiver 1 as measurement data.
In addition, user-specified parameters to be referred to when the system of this embodiment is executed, the intermediate processing result by the traveling state analysis processing means 4b, and the like are stored in the storage unit 5, but the details are omitted.

  The travel data recording processing unit 4a, the travel state analysis processing unit 4b, and the travel state display processing unit 4c constituting the processing unit 4 are realized as functions generated by a program describing a processing procedure to be executed by the CPU. This program is stored in the program storage means 5c, read into the internal memory 5d when the PC 2 is started up or when the system of this embodiment is used, and is executed by the CPU.

  The operation unit 6 includes a keyboard and a mouse. An instruction to set a measurement start / end point, selection of a course type, input of a vehicle weight, selection of a travel result display type, and the like, which are described later by a user, are performed via the operation unit 6. The travel result display types include list display, graph display, two-dimensional image display, and three-dimensional image display, which will be described in detail later.

  The display unit 7 outputs and displays the image data created by the processing unit 4, a list of analysis results, and a graph. In order to make it easy to see how the speed changes, it is desirable that color display is possible. Further, the user's various operation instructions exclusively use the GUI, and the operation screen of this GUI is displayed on the display unit 7.

Hereinafter, the operation of the system of this embodiment will be described.
The operation of this system is roughly divided into collection of travel data, analysis of travel data, and display of travel conditions.

First, travel data collection will be described with reference to FIGS.
In the system of this embodiment, it is essential to register points for determining travel sections. If the same section is registered in the registration point storage means 5a during the first run, the section can be specified only by referring to the registration point storage means 5a for the second and subsequent times.

Here, the types of travel sections targeted by this system will be described.
There are three types of sections: loop course, open course, and round-trip course.
In the loop course, one point PntC may be designated as shown in FIG. Then, the time from passing through this point PntC until the next passing through this point PntC is measured as one round. It should be noted that it is desirable to select a point having a good reception status from the GPS satellite as the point PntC.

As shown in FIG. 3, the open course specifies a measurement start point PntS and a measurement end point PntE. A period from when the measurement start point PntS is passed to when the measurement end point PntE is passed is defined as a measurement section.
The round trip course is a variation of the open course. In FIG. 3, the vehicle travels from the point PntS to the point PntS immediately after traveling from the point PntS to the point PntE.
The loop course can also be regarded as a modification of the open course. This is because a special case where the measurement start point PntS and the measurement end point PntE are the same point is a loop course.
Therefore, the case where the vehicle runs on an open course will be described below. Since the other two courses can be easily inferred from the explanation about the open course, the explanation is omitted.
Note that the user can designate any one course type via the operation unit 6.

The processing by the travel data recording processing means 4a when the measurement start / end points are not yet registered will be described with reference to the flowchart of FIG.
The processing unit 4 performs preprocessing such as preparation for starting reception from the GPS receiver 1 (step S1). For example, the setting of the communication speed with the GPS receiver 1 via the interface unit 3 of the PC 2 is also performed in step S1. The processing unit 4 causes the display unit 7 to display a GUI operation screen for parameter setting by the user, and allows the user to make necessary inputs via the operation unit 6 (step S2). The user-specified parameters include the type of traveling course. Here, it is assumed that the user has selected an open course.

The user starts traveling of the vehicle on which the PC 2 is mounted in a state where the initialization of the GPS is completed and the PC 2 can receive from the GPS receiver 1. It is possible for the user to determine whether or not reception is possible by displaying a confirmation message or the like of the GPS operation status on the display unit 7.
While the vehicle is traveling, GPS data is received at predetermined intervals (step S3). The received data includes information on whether the GPS data is valid or invalid. Therefore, this information is referred to (step S4), and if invalid, the process returns to step S3 and waits for transmission of the next data. If it is valid, the received position information data is coordinate-transformed (step S5).

Here, the coordinate conversion is to convert latitude / longitude / altitude information into coordinates in a three-dimensional space composed of the ground surface and height because the GPS geodetic system is used. For example, WGS-84 (World Geodetic System 1984), which is a typical GPS geodetic system, uses the center of gravity of the earth as the origin, which is inconvenient in visual display of traveling data. Therefore, it is necessary to express the coordinates in the familiar three-dimensional space. In addition, since the calculation formula used for this conversion is known, description is abbreviate | omitted.
By the way, in the following description, a point where valid GPS data can be received will be referred to as a “GPS point”.

Next, it is determined whether or not the user has designated the current position as a registration point via the operation unit 6 (step S6). If there is no designation, the GPS data and the three-dimensional coordinates after coordinate conversion are stored as travel data storage means. 5b is recorded (step S7), and the process proceeds to step S10.
If it is determined in step S6 that there is designation, the GPS data and the three-dimensional coordinates after coordinate conversion are written in the registration point storage means 5a (step S8). Next, this position information is recorded in the travel data storage means 5b (step S9). At this time, the position information is marked with a mark that can be recognized as a registration point. This mark corresponds to a “registration point passing mark” in claim 3.
Then, it moves to step S10.

  In this description, since the user has selected an open course, the user must designate two registration points. Therefore, in step S10, it is determined whether or not two points have been written in the registration point storage means 5a. If not, the process returns to step S3 and waits for reception of GPS data. If two points have been written, the first running data recording process ends.

  An example of the data structure stored in the registration point storage means 5a is shown in FIG. In the first record, the course type is described. It is only necessary to be able to identify which type, and it may be represented by a code or a course type name. In the subsequent record, registration point position information, that is, latitude / longitude / altitude information based on the GPS geodetic system, and three-dimensional coordinates after coordinate conversion are described. In the case of an open course, the position information record at the measurement end point follows the position information record at the measurement start point.

An example of the data structure stored in the travel data storage means 5b is shown in FIG. Measurement data related to one GPS point is described in one record. The record is composed of the following items. That is, serial numbers indicating the order of appearance of GPS points (starting from 1), mark information indicating registered point passing points, latitude / longitude / altitude information based on the GPS geodetic system, three-dimensional coordinates after coordinate conversion, and GPS It is time information. There are as many records as the number of GPS points measured.
The mark information is used for distinguishing the measurement start point and the measurement end point of the section from the way-passing points, and any mark information can be used. For example, “S” is described as a code in the mark information column at the measurement start point, “E” is described as the measurement end point, and the mark information column at the midway passage point is left blank.

Next, a process in the case of traveling again on an open course in which points have already been registered will be described with reference to FIG.
The processing unit 4 performs preprocessing for recording travel data (step S21). In this pre-processing, preparation for reception from the GPS receiver 1, waiting for necessary input by the user via the operation unit 6, reading of coordinates of two registration points from the registration point storage unit 5 a, and the like are performed. One of the items input by the user is a threshold value used for determining registration point passage. This threshold will be described later.

When the preprocessing in step S21 is completed, the user starts traveling the vehicle equipped with PC2,
Data is received at predetermined intervals (step S22). The received data includes information on whether the GPS data is valid or invalid. Therefore, this information is referred to (step S23). If invalid, the process returns to step S22 and waits for the next data to be transmitted. If it is valid, the received positioning data is coordinate-converted (step S24).
In the next step S25, it is determined whether or not the measurement start point PntS has been passed (step S25), and if not yet passed, a determination process is performed to determine whether or not the measurement start point PntS has been passed at the current position (step S25). S26). This determination process will be described later with reference to FIGS.

  If it is determined in step S27 that the measurement start point PntS has not yet been passed, the process returns to step S22 and waits for reception of GPS data. If the current position has passed the measurement start point PntS, the GPS data of the current position and the converted coordinates are recorded in the travel data storage means 5b (step S28). Next, it returns to step S22 again and waits for reception of GPS data.

  If it is determined in step S25 that the measurement has passed the measurement start point PntS, it is determined whether or not it may be determined that the measurement end point PntE has been passed at the current position (step S29). This process is exactly the same as the determination process in step S26. If it is determined in step S30 that the measurement end point PntE has not yet been passed, the process proceeds to step S28, where the GPS data of the current position and the converted coordinates are recorded in the travel data storage means 5b. Next, it returns to step S22 again and waits for reception of GPS data. If the current position has passed the measurement end point PntE, the current position GPS data and converted coordinates are recorded in the travel data storage means 5b (step S31), and the current travel data recording process ends.

When the process shown in the flow in FIG. 4 and FIG. 7 is completed, the travel route of the vehicle is recorded as a coordinate set of GPS points expressed by a combination of longitude / latitude and altitude. That is, the passage route is configured by connecting a plurality of line segments connecting two GPS points.
As described above, by traveling the course once, the same course section is automatically remeasured from the second time.

Next, the registration point passage determination process in step S26 will be described in detail with reference to FIG.
The distance between the current position received from the GPS and the registration point PntS is calculated (step S41). It is determined whether or not the distance is equal to or smaller than a preset threshold value (hereinafter referred to as “threshold A”) (step S42). Assuming that it has passed, the process proceeds to the next processing step S27. If the threshold value A is exceeded, it is determined whether or not a GPS point immediately before the current location exists (step S43). If there is no GPS point, the registered point has not passed at the current location. Control goes to the next processing step S27.

  If the immediately preceding GPS point exists, the distance between the line segment having the immediately preceding GPS point and the current position as an end point and the registered point is calculated (step S44), and this distance is a threshold value (hereinafter referred to as "threshold value"). B ”) or less (step S45). If it is less than or equal to the threshold value B, it is assumed that the registration point has been passed at the current position, and the process proceeds to the next processing step S27. If the threshold value B is exceeded, it is assumed that the registration point has not passed at the current position, and the process proceeds to the next processing step S27.

The distance between the line segment calculated in step S44 and the registered point is obtained as follows.
That is, in FIG. 9, when the registration point is at the position of the point P1, since the perpendicular foot H1 from the point P1 to the line segment AB is on the line segment AB, the line segment with the points P1 and H as endpoints The length of corresponds to the distance.
If the registered point is at the position of the point P2, since the perpendicular foot H2 from the point P2 to the line segment AB is not on the line segment AB, the line having the point P2 and the point A or B as the end points The smaller of the minute lengths corresponds to the distance. In the case of FIG. 9, it is the length of the line segment connecting the point P2 and the point B. In addition, when the perpendicular | vertical leg is not on line segment AB like the point P2, you may determine with having not passed the registration point.

In order to appropriately recognize the measurement start / end point passage, the values set for the threshold A and the threshold B are important.
Both the threshold value A and the threshold value B should be set to values corresponding to at least the road width.

Next, traveling data analysis processing will be described.
The traveling state analysis processing means 4b refers to the traveling data storage means 5b and calculates the traveling distance in the section, the time required to finish the section, the average / maximum / minimum speed in the section, and the like.

As described above, in the travel data storage unit 5b, the travel route of the vehicle is recorded as a coordinate set of GPS points expressed by a combination of longitude / latitude and altitude.
The travel distance is a value calculated as the sum of all the distances between two adjacent GPS points. That is, the travel distance of the vehicle is obtained from the change in the position coordinates accompanying the travel.
The travel time is calculated as the difference between the time at which the positioning information marked with the measurement end point is received and the time at which the positioning information marked with the measurement start point is received in the travel data storage means 5b. Value.
The average speed is obtained by dividing the travel distance by the travel time.

Dividing the distance between two adjacent GPS points by the time between the two points gives the speed between the adjacent points. The speed is calculated between all two adjacent points, and the maximum value is the maximum speed in the travel section, and the minimum value is the minimum speed.
Note that the speed changes drastically when sudden sudden braking is applied while driving between two adjacent points. However, in normal driving, the average speed between adjacent points may be regarded as the maximum and minimum speeds of the entire course as described above.
This is because it is considered that when a situation in which sudden braking is applied occurs, the vehicle travels again later and the measurement data is collected again.

  If the weight of the vehicle is set in advance as a parameter, the output horsepower of the traveling vehicle can be calculated from the traveling speed. Note that the weight of the user is also added to the weight of the vehicle.

Furthermore, the corner can be determined from the traveling locus, and the start point and end point of the corner can be known. Therefore, the approach speed and the escape speed when traveling in the corner can be easily understood. Further, for each GPS point existing in the section from the start point to the end point of the corner, the average speed between adjacent GPS points is calculated, and the average speed between these points can be compared to find the minimum speed while passing the corner. The location of the minimum speed position at the corner is determined by the location between adjacent GPS points corresponding to the minimum speed.
A known method is used to discriminate the corner from the shape of the trajectory.

Next, the display of the traveling state based on the traveling data and the traveling state analysis result will be described.
The traveling state display processing unit 4c refers to the traveling data storage unit 5b, generates image data based on the locus data of the traveling section (specific section based on the mark information), and outputs the image data to the display unit 7. There are two types of travel locus display: a two-dimensional image and a three-dimensional image.

When displaying an image, drawing is performed after correcting the shape state. The reason why the correction is necessary is as follows.
Since the latitude / longitude / altitude data transmitted by the GPS is expressed in the GPS geodetic system, it is converted into coordinates in a three-dimensional space consisting of the ground surface and height. However, if the converted data is drawn as it is, the entire path is inclined by the amount corresponding to the ground axis. Therefore, it is necessary to obtain the average of the latitude / longitude data of each GPS point and correct the inclination of the entire route. With this correction, the drawing of the three-dimensional shape is not affected by the inclination of the ground axis.

The three-dimensional image reads the coordinates (X, Y, Z) of each GPS point constituting the route and displays them three-dimensionally. Since the mark is added to the GPS point determined to have passed the measurement start point and the measurement end point in the travel data storage unit 5b, the travel state display processing unit 4c determines the start point of the measurement section from the mark. The end point is determined, and the three-dimensional shape of the route in this section is drawn.
On the displayed route as shown in FIG. 10, the measurement start position (START) and end position (GOAL), and the maximum speed position in the travel section are displayed.

  The location where the GPS could not be received is displayed as a straight line because the shape cannot be specified. For example, since it cannot be received in the tunnel, the GPS point measured last before entering the tunnel and the GPS point measured first after leaving the tunnel are connected by a straight line. In FIG. 11, the part displayed with the straight line is shown with the broken line. In addition, black circles in FIG. 11 represent GPS points.

When displayed as a three-dimensional image, a detailed shape including the up and down of the route can be grasped.
Image training is also possible by looking at this 3D image before running.
Then, the speed data calculated for each adjacent GPS point is superimposed and displayed on this image. In particular, regarding the speed, it is more effective to display a color map in which the deceleration is colored red and the acceleration is colored blue. FIG. 12 shows a change in speed when traveling in a corner. Black circles are GPS points. For convenience, the decelerating point section is represented by diagonal lines, and the accelerating point section is represented by a horizontal line.

Since the path shape and the speed are displayed at the same time, the cornering characteristics of the user are particularly clear. Acceleration starts from the position before the start point of the corner, where it started decelerating, how much the approach speed was, where the speed was the lowest, and how far before the end point of the corner It is obvious how quickly the corner escapes. Therefore, it is possible to reflect on or consider whether the starting position of deceleration / acceleration was appropriate or whether the speed while passing through the corner could be increased further.
In addition, when equipped with expensive tuning parts, it is possible to objectively confirm changes in running by comparing three-dimensional images before and after the installation.

  This three-dimensional image can be displayed by changing the viewpoint by operating the operation unit 6. Because it is possible to see the running trajectory freely from any angle, it is possible to adjust places that are difficult to see depending on the shape of the course.

  In the case of three-dimensional display, it is also possible to display a grid for topographic data and display altitude information for grasping the altitude state of the course. Thereby, the state of the course can be grasped more accurately. In FIG. 10, grid display is performed on the terrain data. Moreover, in FIGS. 10-12, it displays on the basis of the plane where an altitude is lower than any GPS point of a travel section so that the up-down of a travel section can be understood at a glance.

The two-dimensional image displays the shape of the traveling section viewed from directly above. When there is a place where the GPS cannot be normally received with a complicated shape, there is an effect such as easily knowing where the GPS cannot be received. An example of two-dimensional display is shown in FIG. A black circle represents a GPS point.
Similar to the three-dimensional image, the measurement start position and end position, and the maximum speed position in the travel section are displayed in an overlapped manner on the route, and the location where GPS reception cannot be performed is displayed in a straight line.

  The transition of the speed change during the course section can be displayed in a graph such as a line graph. The horizontal axis is the travel time axis, and the vertical axis represents the speed transition. In particular, when viewed in combination with a two-dimensional or three-dimensional image, it becomes easy to discriminate a speed shift during traveling. FIG. 14 shows an example of a graph display. A two-dimensional image of the course is shown below the graph, but it is not difficult to correlate the corner portion marked with a circle in the course with the corresponding portion of the line graph.

The travel data can also be displayed as a list. A user who frequently travels on the same course can compare the travel state for each travel.
Items displayed in the list include the running time, distance traveled, average / maximum / minimum speed, average / maximum / minimum speed of each lap, average / maximum output horsepower, etc. while traveling.

  The embodiment disclosed above is illustrative in all respects, and is not restrictive, and various modifications can be made. However, as long as the modification is based on the technical idea described in the claims, the modification is included in the technical scope of the present invention.

It is a block diagram which shows the system configuration | structure of this embodiment. It is a figure which shows the registration point of the loop course of this embodiment. It is a figure which shows the start point and end point of the open course of this embodiment. It is a flowchart which shows the first run data measurement process of this embodiment. It is a figure which shows the data structure stored in the registration point memory | storage means of this embodiment. It is a figure which shows the data structure stored in the driving | running | working data storage means of this embodiment. It is a flowchart which shows the driving data measurement process after the 2nd time of this embodiment. It is a flowchart of the process which determines registration point passage of this embodiment. It is a figure which shows the meaning of the distance of the registration point of this embodiment, and a line segment. It is a figure which illustrates the three-dimensional display of this embodiment. It is a figure which illustrates the three-dimensional display of this embodiment. It is a figure which illustrates the three-dimensional display of this embodiment. It is a figure which illustrates the two-dimensional display of this embodiment. It is a figure which illustrates the graph display of the speed change of this embodiment.

Explanation of symbols

1 GPS receiver 2 PC
3 interface unit 4 processing unit 4a travel data recording processing unit 4b travel state analysis processing unit 4c travel state display processing unit 5 storage unit 5a registration point storage unit 5b travel data storage unit 6 operation unit 7 display unit

Claims (12)

A system comprising a processing unit, a storage unit, an operation unit, an interface unit, and an information processing device mounted on a vehicle,
The information processing apparatus has a function of connecting to a GPS receiver,
The processing unit includes a travel data recording processing unit, the storage unit includes a registration point storage unit and a travel data storage unit, and the travel data recording processing unit is connected to the operation unit via the operation unit while the vehicle is traveling. While acquiring the positions of the two designated points from the GPS receiver via the interface unit, the positions of the two points are written in the registered point storage means as the measurement start point and measurement end point of the travel measurement section When the vehicle travels again in the travel measurement section, the travel data recording processing means refers to the position information of the measurement start point and the measurement end point from the registered point storage means, and the vehicle starts the measurement. Received from the GPS receiver at a predetermined interval from when it was determined that the point was passed to when it was determined that it passed the measurement end point Vehicle running state analysis system and writes the location information and time information in the travel data storage means. A system comprising a processing unit, a storage unit, an operation unit, an interface unit, and an information processing device mounted on a vehicle,
The information processing apparatus has a function of connecting to a GPS receiver,
The processing unit includes a travel data recording processing unit, the storage unit includes a registration point storage unit and a travel data storage unit, and the travel data recording processing unit is connected to the operation unit via the operation unit while the vehicle is traveling. The position of one designated point is acquired from the GPS receiver via the interface unit, and the position of this point is written in the registered point storage means as one point of the lap driving measurement section, while the vehicle When traveling again in the travel measurement section, the travel data recording processing means refers to the location information of the one spot from the registered point storage means, and once again determines that the vehicle has passed the one spot, Until it is determined that the vehicle has passed the one point, the position information and time information received at predetermined intervals from the GPS receiver are used as travel data for one round. Vehicle running state analysis system and writes the running data storage means. When the distance between the registered point written in the registered point storage unit and the current position of the traveling vehicle is equal to or less than a predetermined threshold, the traveling data recording processing unit passes the registered point. When the threshold is exceeded, if the distance between the line segment whose end point is the current position of the vehicle and the immediately preceding position and the registered point is equal to or less than a predetermined threshold, the vehicle On the other hand, when it is determined that the registration point has been passed, and when it is determined that the registration point has been passed at the current position, a registration point passing mark indicating the passage of the registration point is recorded in the travel data storage unit together with the current position. The vehicle running state analysis system according to claim 1 or 2, characterized in that The processing unit includes a traveling state analysis processing unit, and the traveling state analysis processing unit refers to the traveling data stored in the traveling data storage unit, and the traveling distance, traveling time, average / maximum / The minimum speed is calculated, and the time and speed during cornering are calculated, while the output horsepower during driving is calculated when the weight of the vehicle is input through the operation unit. 4. The vehicle running state analysis system according to 3. The processing unit includes a traveling state display processing unit, and the traveling state display processing unit generates three-dimensional image data of the shape of the traveling route based on the positional information of the traveling data stored in the traveling data storage unit. 5. The vehicle running state analysis system according to claim 4, wherein the generated image data is output to the display unit and displayed so that the point with the registration point passing mark is visible. 6. The vehicle travel state analysis system according to claim 5, wherein the travel state display processing unit displays a speed change state superimposed on a travel route shape display on the display unit. The traveling state display processing means changes and displays the three-dimensional image displayed on the display unit as an image viewed from an arbitrary angle in accordance with an operation instruction signal input via the operation unit. The vehicle running state analysis system according to claim 5. The processing unit includes a traveling state display processing unit, and the traveling state display processing unit generates two-dimensional image data of the shape of the traveling route based on the positional information of the traveling data stored in the traveling data storage unit. 5. The vehicle running state analysis system according to claim 4, wherein the generated image data is output to the display unit and displayed so that the point with the registration point passing mark is visible. The running state display processing means displays on the display unit so that a point where valid data can be obtained from a GPS receiver can be visually recognized, and a section where valid data cannot be obtained is displayed as a line segment. The vehicle running state analysis system according to any one of claims 5 and 8. A method of analyzing a traveling state of a vehicle using an information processing device mounted on a traveling vehicle and connected to a GPS receiver,
The information processing apparatus acquires position information of one designated point or two points from the GPS receiver and stores it as a registered point, and a lap driving measurement section specified by the one registered point, or When the vehicle travels again in the travel measurement section specified at the two registration points, the position information and time information during travel are acquired from the GPS receiver at predetermined intervals, and stored as travel data; A step of analyzing a travel state including a travel distance, a travel time, and a travel speed based on the travel data, and a step of displaying the shape of the travel route and the travel state in association with each other on the screen of the information processing apparatus. A vehicle running state analysis method. A recording medium on which a program for causing a computer to execute the method of claim 10 is recorded. A program for causing a computer to execute the method of claim 10.