JP5988267B2 - Moving means discriminating apparatus and computer program - Google Patents

Description

  The present invention relates to a moving means discriminating apparatus and a computer program for discriminating using which moving means a holder carrying a mobile terminal has moved.

  Automobiles traveling on roads in various places wirelessly transmit probe information, the server device collects these probe information, and determines, for example, the occurrence of traffic jams on the road based on the collected probe information, and the determination result (congestion information) Has been proposed (for example, see Patent Document 1).

Probe information is transmitted by a vehicle-mounted device fixed to a car having a wireless communication function. Recently, portable terminals having a wireless communication function such as smartphones and tablet terminals have been widely used. It has also been proposed to be used as a substitute for an in-vehicle device.
For example, since the portable terminal has a GPS function and can acquire the current position, when the portable terminal holder (user) operates the automobile, the portable terminal is mounted on the automobile. The terminal can periodically transmit current position information and time information as probe information.

JP 2006-344006 A

  As described above, on the basis of the probe information transmitted from the mobile terminal, the server device moves on a vehicle in order to accurately generate traffic information for a vehicle such as traffic congestion information on a road. It is necessary to collect the probe information transmitted from the portable terminal of the owner.

  However, in addition to using the mobile terminal as a device for a road information system mounted on a car, the owner must carry it and walk, carry it and ride it on a bicycle, or carry it and ride it on a train. It can also move. Therefore, in order to accurately generate traffic information for automobiles based on probe information transmitted from a mobile terminal, the mobile terminal (owner) that is the source of the probe information can be used by any moving means. It is necessary to determine whether it has moved.

  Therefore, when the owner who owns the mobile terminal is on a car or a train, the average speed when moving is generally larger than that when walking or riding a bicycle. And the probe information including the time information, an average speed when the mobile terminal moves can be obtained by calculation, and the moving means can be determined based on the average speed.

  However, for example, on a road where there is a lot of traffic and traffic is congested, the speed of the car becomes slow, and the average speed may be comparable to the average speed in the case of walking. Therefore, when probe information is wirelessly transmitted from the mobile terminal in a state where the owner who carries the mobile terminal is on a car traveling on such a congested road, the server device uses the probe. If the average speed is calculated based on the information and the moving means is determined based on the average speed, the moving means may be erroneously determined to be walking.

  That is, when the moving means is determined based on the average speed as described above, an error may occur. Therefore, an object of the present invention is to reduce the determination error of the moving means.

  (1) The moving means determination device according to the present invention includes an acquisition unit that acquires speed information indicating the speed of the mobile terminal for each predetermined time from terminal information transmitted by the mobile terminal that is moving, and a holder who possesses the mobile terminal And a determining unit that determines which moving means is used to move, from the start or stop of the mobile terminal to the next stop or next start is one trip, the determination unit is the trip The moving means in the trip is discriminated based on the speed distribution indicated by the speed information acquired every time as a discrimination criterion.

  According to the present invention, since the distribution of speed indicated by the speed information acquired for each trip is used as a determination criterion, it is determined by which moving means the owner carrying the mobile terminal has moved each trip. Thus, by using the average speed for the discrimination of the moving means as in the prior art, it is possible to reduce the occurrence of a discrimination error of the moving means such as walking and automobile being confused.

(2) Moreover, the said discrimination | determination part uses the ratio for which the speed contained in the average walking speed zone of a pedestrian occupies as said speed distribution, and when this ratio is more than a threshold value, a moving means is walking. It is preferable to discriminate.
In this case, when the proportion of the speed included in the average walking speed zone is high in the speeds indicated by the plurality of speed information included in one trip, it is possible to determine that the trip moving means is walking. It becomes possible. On the other hand, when the ratio of the speed included in the average walking speed zone is low, it is possible to determine that the trip moving means is other than walking (automobile). For this reason, it is possible to determine whether the moving means is a bicycle or an automobile that is traveling at a low speed by traveling on a congested road. The average walking speed zone is, for example, 3.5 km / h to 5.5 km / h.

(3) Moreover, the said discrimination | determination part uses the ratio for which the speed contained in the low-speed zone which becomes difficult for a bicycle to run as the distribution of the speed, and when this ratio is less than a threshold value, a moving means is a bicycle. It is preferable to determine that there is.
In this case, when the ratio of the speed included in the low speed zone that is difficult for the bicycle to occupy is low in the speed indicated by the plurality of speed information included in one trip, the moving means of this trip is the bicycle. Can be determined. On the other hand, when the ratio of the speed information included in the low speed zone is high, it is possible to determine that the trip moving means is other than a bicycle (automobile). Therefore, it is possible to determine whether the moving means is a bicycle or an automobile that is traveling at a relatively low speed by traveling on a congested road. Note that the low speed zone that makes it difficult for a bicycle to travel is, for example, 0 km / h to 4.5 km / h.

(4) Here, in general, trains have a long time to accelerate before reaching a cruising state (constant speed state), and cars have a time zone to accelerate before reaching a cruising state (constant speed state). Since it is short, it is conceivable to distinguish between trains and automobiles by paying attention to the difference in acceleration time zones. For this purpose, each trip is divided into an acceleration region (acceleration phase), a traveling region (cruising phase), and a deceleration region (deceleration phase), and the characteristics of the acceleration region (accelerating time zone) are extracted and moved. It is conceivable to determine the means (whether it is a train or a car).
However, when the speed change of the mobile terminal is indicated in the speed-time coordinate system from the position information acquired based on the GPS function of the mobile terminal, it may be difficult to determine the acceleration region properly. When the moving means is determined by paying attention to the difference in the acceleration time zone, if the determination of the acceleration region is different, an error may occur in the determination.
From the above, it is desirable to provide a moving means discriminating apparatus provided with technical means that can discriminate moving means without dividing the region as described above.

Therefore, the acquisition unit can further acquire acceleration information indicating the acceleration of the mobile terminal, and the determination unit further indicates the acceleration information of the mobile terminal moving in a predetermined speed band within each trip. It is preferable to discriminate the moving means in the trip using the acceleration distribution as a discrimination criterion.
There is a large difference in weight (vehicle weight) between an automobile and a train, and an automobile has a physically higher acceleration (acceleration / deceleration) than a train. Therefore, the moving means is an automobile by using the distribution of acceleration indicated by the acceleration information of the mobile terminal that moves in a transitional predetermined speed band (for example, 20 km to 40 km / h) until it becomes a cruise state as a discrimination criterion. Or the train is less likely to be confused, and the occurrence of discrimination errors can be reduced. In this way, the moving means can be determined without dividing each trip into regions.

(5) Moreover, in the moving means discriminating apparatus of (4), the discriminating unit indicates an acceleration equal to or higher than a first threshold among the acceleration information of the mobile terminal that has moved in each trip within the predetermined speed band. It is preferable to determine that the vehicle is a car when the ratio of the acceleration information is equal to or greater than the second threshold, and to determine that the vehicle is a train when the ratio is less than the second threshold.
In this case, it is possible to determine whether the moving means is an automobile or a train.

(6) Moreover, the acquisition unit can further acquire acceleration information indicating the acceleration of the mobile terminal and an inflection point where the sign of the acceleration changes, and the determination unit can further acquire the mobile terminal. It is preferable to determine the moving means in the trip based on the inflection point in each trip in which the trip has occurred.
A driver who drives a car tends to travel while repeating acceleration and deceleration while paying attention to the distance from the car traveling in front. In contrast, when a train enters a cruising state, it travels at a relatively constant speed without significant acceleration (deceleration). Therefore, by discriminating the moving means by paying attention to the inflection point of the acceleration, it becomes difficult to confuse whether the moving means is an automobile or a train, and it becomes possible to reduce the occurrence of discrimination errors. . For this reason, it is possible to determine the moving means without dividing each trip into regions.

(7) Further, the moving means discriminating apparatus, when the moving means of each of a plurality of trips is discriminated by the discriminating unit, when the moving means of one trip is different from the moving means of trips before and after the trip, It is preferable to further include a correction unit that performs a correction process that makes the moving means of one trip the same as the moving means of the preceding and following trips.
The discriminating unit discriminates the moving means of each of the plurality of trips, and even if there is an error in this discrimination, it is possible to correct it.

(8) In the moving unit determination device according to (7), it is preferable that the correction unit performs the correction process on the condition that the time of the one trip is shorter than a predetermined time.
In this case, there is a high possibility that an error has occurred in the determination of the moving means of the one trip, and this can be corrected.
(9) Further, in the movement means determination device according to (7) or (8), the correction unit determines that the movement means of the one trip is an automobile, and the movement means of the previous and subsequent trips is walking. In the case where it is determined that there is, it is preferable to stop the correction process when the speed of the mobile terminal in the one trip is larger than a predetermined value.
In this case, since the speed of the portable terminal in one trip is high, it is appropriate to determine that the moving means of this one trip is also an automobile, and the correction process by the correction unit can be stopped.

(10) Further, the present invention is a computer program for causing a computer to function as a moving means discriminating apparatus that discriminates using which moving means the owner carrying the mobile terminal has moved. From the start or stop to the next stop or the next start is one trip, the moving means determination device acquires speed information indicating the speed of the mobile terminal every predetermined time from the terminal information transmitted by the mobile terminal The moving means in the trip is discriminated using the speed distribution indicated by the speed information acquired for each trip as a discrimination criterion.
According to the present invention, it is possible to achieve the same operational effects as the moving means discriminating device described in (1).

  According to the present invention, since the distribution of speed indicated by the speed information acquired for each trip is used as a determination criterion, it is determined by which moving means the owner carrying the mobile terminal has moved each trip. Therefore, it is possible to reduce the occurrence of a determination error of the moving means.

It is a schematic block diagram of the road information system containing the movement means discrimination | determination apparatus of this invention. (A) is explanatory drawing which shows the map containing the road to which the portable terminal moved, (B) is a graph which made the speed of the portable terminal the vertical axis | shaft, and time was the horizontal axis. It is explanatory drawing of the information which shows the time change of the speed of a portable terminal, (A) is the case of a walk, (B) is the case of a motor vehicle. (A) is the result of statistical processing for speed information included in one trip of FIG. 3 (A), and (B) is the result of statistical processing for speed information included in one trip of FIG. 3 (B). It is explanatory drawing which shows a result. It is the result of the statistical processing about the several speed information contained in 1 trip, (A) is the case of a motor vehicle, (B) is the case of a bicycle. It is explanatory drawing of the information which shows the time change of the speed of a portable terminal. It is explanatory drawing which graphed the ratio regarding the acceleration information of the portable terminal which moved in 20 km / h-40 km / h within 1 trip (in the case of a car). It is explanatory drawing which graphed the ratio regarding the acceleration information of the portable terminal which moved in 20 km / h-40 km / h within 1 trip (in the case of a train). It is explanatory drawing which calculated | required the speed change of the portable terminal from the positional information acquired based on the GPS function of a portable terminal, and showed in the coordinate system of speed-time. It is explanatory drawing which shows the time change of the speed of the portable terminal in one trip. It is explanatory drawing which shows a part of FIG. It is explanatory drawing explaining the trip from a departure place to the destination, and the function of a correction | amendment part. It is explanatory drawing explaining the function of a correction | amendment part. It is a flowchart explaining the process by a discrimination | determination part.

Embodiments of the present invention will be described below.
[1. About the road information system)
FIG. 1 is a schematic configuration diagram of a road information system including a moving means discriminating apparatus 1 according to the present invention. The road information system includes a portable terminal 7 having a wireless communication function, a wireless communication device 3 (wireless base station) that receives a transmission signal wirelessly transmitted from the portable terminal 7, and the transmission signal through the wireless communication device 3. The server apparatus 10 which collects is included.

  The mobile terminal 7 is composed of, for example, a smartphone (mobile phone) or a tablet terminal possessed by the owner (user). The mobile terminal 7 includes a transmission / reception unit 5 that wirelessly transmits and receives various types of information, a control unit 6 that performs control for wireless communication and various types of information processing, and a position acquisition unit 4 that acquires current position information. ing. The position acquisition unit 4 includes, for example, a reception unit that receives a GPS signal and a positioning unit that acquires a current position from the received GPS signal.

The position acquisition unit 4 acquires the current position at a predetermined cycle. When the current position is acquired, the control unit 6 generates position information indicating the current position and time information (time information) at the current position as terminal information (probe information) i. The terminal information i is wirelessly transmitted from the transmission / reception unit 5. In the present embodiment, the generation cycle of the terminal information i and the transmission cycle of the terminal information i are the same, and can be set to, for example, a 1-second cycle. Note that the generation cycle and transmission cycle of terminal information i may be different, and in this case, a plurality of terminal information i are transmitted together.
The terminal information i also includes identification information of the mobile terminal 7, and the server device 10 (processing unit 13) that has acquired the terminal information i can identify the mobile terminal 7.

The portable terminal 7 is carried by the owner, and the owner moves by taking a car, a train, or a bicycle in addition to walking on roads (sidewalks) and the like in various places.
The owner can use the portable terminal 7 as an in-vehicle device of the automobile when getting on the automobile. In this case, the mobile terminal 7 generates and wirelessly transmits terminal information i including the position information and time information of the automobile. This generation / transmission process is repeated.

  When the owner rides a bicycle and a train, terminal information i including position information and time information is generated and transmitted wirelessly by the portable terminal 7 held in the same manner as when walking or riding a car. The This generation / transmission process is repeated.

  The wireless communication device 3 is composed of wireless base stations installed in various places or buildings on the road, receives the terminal information i transmitted from the mobile terminal 7 that moves around each place, and transfers it to the server device 10.

The server device 10 includes a server computer, and includes a storage unit 11 including a storage device such as a hard disk for storing a computer program and various information, a transmission / reception unit 12 including a communication interface for communicating with the wireless communication device 3, and information And a processing unit 13 including a processing device that performs processing.
When the transmission / reception unit 12 receives the terminal information i transmitted from the wireless communication device 3, the terminal information i is given from the transmission / reception unit 12 to the processing unit 13. As will be described later, the processing unit 13 uses the terminal information i, and the owner who owns the mobile terminal 7 that is the transmission source of the terminal information i uses each traveling unit described below as to what type of transportation means. A process (moving means determination process) for determining whether or not the vehicle has moved using (walking, bicycle, car, train) is performed.

  The server device 10 has a plurality of functional units that perform various functions, and one of these functional units is the moving unit determination apparatus 1 that performs the moving unit determination process. That is, the processing unit 13 included in the server device 10 includes a computer having a CPU, an internal memory, and the like, and a computer program for causing the server device 10 to function as the moving unit determination device 1 is installed in the storage unit 11. . Each function (an acquisition unit 21, a determination unit 22, and a correction unit 23, which will be described later) provided in the moving unit determination device 1 is exhibited when the computer program is executed by the processing unit 13.

[2. About moving means discriminating apparatus 1]
[2.1 Functions of processing unit 13]
FIG. 2A is an explanatory diagram showing a map including a road on which the mobile terminal 7 has moved. It is assumed that the mobile terminal 7 stopped at the point A starts moving from the point A and continues to move, and stops at the point B.

As described above, each piece of terminal information i transmitted by the portable terminal 7 every predetermined time (in this embodiment, every second) includes the position information and time information of the portable terminal 7. The predetermined time may be a time that is changed instead of a fixed time.
For this reason, the acquisition unit 21 obtains the position (trajectory point) for each predetermined time on the road map of the portable terminal 7 from the position information and time information included in the terminal information i transmitted from the certain portable terminal 7. The trajectory point information shown can be acquired, and the movement trajectory of the mobile terminal 7 can be acquired from a plurality of consecutive positions (a plurality of trajectory points) about the mobile terminal 7. Each dot in the map (on the road) in FIG. 2A is a locus point.

  Furthermore, when the acquisition unit 21 acquires the terminal information i including the position information and time information, the acquisition unit 21 can acquire the position information of the portable terminal 7 every predetermined time (every second). Thus, speed information indicating the speed of the mobile terminal 7 every predetermined time (every 1 second) can be obtained and obtained by calculation. Furthermore, the acquisition part 21 can obtain | require and acquire the acceleration information which shows the acceleration of the portable terminal 7 for every predetermined time (every 1 second) by calculation using the speed which this speed information shows.

As described above, the acquisition unit 21 can acquire position information, velocity information, and acceleration information for each trajectory point based on the terminal information i. The information is stored in association with each other for each trajectory point. Stored in the unit 11.
And the acquisition part 21 can obtain | require the relationship information (refer FIG. 2 (B)) which shows the time change of the speed of the portable terminal 7 based on these acquired information. The graph shown in FIG. 2B is represented by a line in which the time change of the speed is continuous, but is actually discrete information indicating the speed at every predetermined time (in this embodiment, every second).

In the above description, the case where the speed information is calculated from the position information of the mobile terminal 7 has been described. In addition, the mobile terminal 7 obtains speed information indicating its own speed, and the speed information is obtained from the terminal information i. In this case, the acquisition unit 21 acquires the speed information included in the terminal information i as it is.
Further, there is a case where the mobile terminal 7 obtains acceleration information indicating its own acceleration and transmits the acceleration information included in the terminal information i. In this case, the acquisition unit 21 includes the acceleration included in the terminal information i. Get the information as it is.

  Moreover, the acquisition part 21 can determine with the state of the portable terminal 7 being "stop", if the positional information which shows the same position is acquired continuously about predetermined times. In addition, when the position indicated by the position information changes from this “stop”, the state of the mobile terminal 7 can be determined to be “start”. If the position indicated by the position information continues to change, it can be determined that the state of the mobile terminal 7 is “moving”. Furthermore, if the position information indicating the same position is continuously acquired for a predetermined number of times from “moving”, it can be determined as “stop”. Thus, the acquisition unit 21 can determine whether the mobile terminal 7 is stopped, started, or moved based on the terminal information i.

  2A and 2B, the acquisition unit 21 can determine that the mobile terminal 7 starts at the point A (time t1) and stops at the point B (time (t4)). From this start (point A, time t1) to the next stop (point B, time t4) is set as one trip, and the acquisition unit 21 similarly starts and stops thereafter. Judgment and multiple trips can be set.

  Thereby, when the mobile terminal 7 moves from the departure place to the destination while repeating starting and stopping, as shown in FIG. 12, a plurality of trips are obtained between the departure place Ps and the destination Pe, The acquisition unit 21 can set each trip in time order. Each trip is given a trip number (trip ID). In the case of FIG. 12, the trip IDs are 1 to 6 in order of time.

As described above, when the mobile terminal 7 continues to transmit the terminal information i every predetermined time (every second), the acquisition unit 21 can determine a trip. The acquisition unit 21 acquires position information, speed information, and acceleration information for each of the plurality of trajectory points included in each trip, and these information are stored in the storage unit 11 in association with each trajectory point. .
Moreover, the acquisition part 21 can calculate the average speed at the time of the portable terminal 7 moving on each trip based on the speed information contained in each trip.

In addition to the acceleration information indicating the acceleration of the mobile terminal 7, the acquisition unit 21 acquires an inflection point at which the sign of acceleration changes. That is, when acceleration (acceleration information) is obtained from terminal information i at a certain time (tj), and acceleration (acceleration information) is obtained from terminal information i at time (tj + 1) after a predetermined time (1 second). When the acceleration sign changes between the time (tj) and the time (tj + 1), the acquisition unit 21 sets the trajectory point at the time (tj) as the inflection point where the acceleration sign changes. Do what you consider.
As described above, the information acquired by the acquisition unit 21 is stored in the storage unit 11 in association with the trip number for each trip.

And the discrimination | determination part 22 performs the process which discriminate | determines the moving means in each trip by using as a discrimination | determination reference | standard the speed distribution which the speed information in each of several trajectory points acquired for every trip shows.
Further, when the determining unit 22 determines the moving means for each of the plurality of trips, the correcting unit 23 performs a process of checking and correcting the moving means for each determined trip.
Specific processing contents by the determination unit 22 and the correction unit 23 will be described later.

[2.2 Discrimination process by discrimination unit 22]
[2.2.1 Car-walking discrimination]
It is assumed that the information shown in FIG. 3A is acquired by the acquisition unit 21 as information indicating a temporal change in the speed of the mobile terminal 7 in a certain trip. FIG. 3A is obtained when the owner who carries the mobile terminal 7 is walking. The maximum speed in one trip is 5.5 km / h, but if the average speed in this one trip is calculated, it becomes 5 km / h.

  Further, it is assumed that the information shown in FIG. 3B is acquired by the acquisition unit 21 as information indicating the time change of the speed of the mobile terminal 7 in a certain trip. FIG. 3B is obtained when the owner who has the mobile terminal 7 is in a car. However, this car is traveling on a congested road, and the maximum speed within one trip is 10 km / h, and the average speed in this one trip is calculated to be 5 km / h.

  In this way, on a road where there is a lot of traffic and traffic is congested, the speed of the car is slow, and the average speed may be the same as the average speed when walking. Therefore, when the owner who carries the portable terminal 7 rides on the automobile traveling on the traffic road in this way and the terminal information i is wirelessly transmitted from the portable terminal 7, the terminal information i is based on the terminal information i. If the average speed is calculated and the moving means is determined based on the average speed, the moving means may be erroneously determined to be walking.

  However, the discriminating unit 22 according to the present embodiment does not use the average speed as a discriminant criterion, and uses the velocity distribution (frequency distribution) indicated by the speed information at each of the plurality of trajectory points acquired for each trip as the discriminant criterion. A process for determining the moving means in the trip is performed.

  More specifically, the determination unit 22 statistically processes the speeds indicated by a plurality of speed information at a plurality of trajectory points included in one trip, and classifies these speeds for each speed (for each speed band). That is, the velocity distribution is obtained. FIG. 4A shows the result of statistical processing for the speed information included in one trip in FIG. 3A, and FIG. 4B shows the speed information included in one trip in FIG. It is the result of statistical processing. Note that the graphs shown in FIGS. 3A and 3B are represented by lines in which the speed changes with time, but in reality, the information is discrete information indicating the speed at every predetermined time (every second). .

Here, when the mobile terminal 7 is carried by a walking owner (in the case of FIG. 3A), the pedestrian is generally in an average walking speed range of 3.5 km / h to 5.5 km / h. Since walking, the speed distribution of the pedestrian is a distribution that is narrowly distributed around the average walking speed (for example, 4.5 km / h) as shown in FIG.
On the other hand, when the mobile terminal 7 is mounted on an automobile that is traveling at a low speed due to traffic jams (in the case of FIG. 3B), the automobile frequently repeats acceleration and deceleration during one trip. Therefore, as shown in FIG. 4B, the speed distribution of the automobile is a distribution that spreads and spreads in a range from 0 to the maximum speed (10 km / h).

Therefore, the determination unit 22 obtains a frequency distribution for a plurality of speed information (speeds) at a plurality of trajectory points included in one trip, and from this frequency distribution, the average walking speed zone of the pedestrian (speed 3.5 km / h to speed) The frequency of speed information (speed) included in 5.5 km) is obtained.
And the ratio of the frequency of the speed information included in the average walking speed zone (3.5 km / h to 5.5 km / h) with respect to the sum of the frequencies of the plurality of speed information at the plurality of trajectory points included in one trip. If the threshold value (20%) is equal to or greater than the threshold value (20%), it is determined that the moving means is walking. If the threshold value is less than the threshold value (20%), it is determined that the moving means is an automobile. In addition, the said threshold value can be changed and can be made into a value of 10 to 30%, for example.

As described above, the determination unit 22 uses the ratio of the speed included in the average walking speed zone of the pedestrian (3.5 km / h to 5.5 km / h) as the speed distribution in one trip, and this ratio. Is used to determine whether the moving means is an automobile or a walking.
When the ratio of the speed included in the average walking speed zone is high in the speed indicated by the plurality of speed information at the plurality of trajectory points included in one trip, it is determined that the moving means of this trip is walking. When the ratio of the speed included in the average walking speed zone is low, it is possible to determine that the trip moving means is other than walking (automobile).
That is, the variation in the speed indicated by the speed information for each predetermined time (every 1 second) included in one trip is small, and this speed distribution is narrowly distributed around the average walking speed (4.5 km / h). If the movement means is determined to be walking, the movement means is determined to be an automobile if the variation is large.

  As described above, according to the moving means discriminating apparatus 1 of the present embodiment, the speed distribution (the ratio of the speed included in the average walking speed band) indicated by the speed information at each of the plurality of trajectory points included in one trip is obtained. As a discrimination criterion, since the owner carrying the mobile terminal 7 determines which moving means each trip is used to move, the average speed is used for discrimination of the moving means as in the conventional case. It is possible to reduce the occurrence of a determination error of the moving means such as confusion with the automobile.

[2.2.2 Discrimination between automobile and bicycle]
Similar to the car-walking discrimination process described above, the information indicating the time change of the speed of the mobile terminal 7 is acquired when the owner of the mobile terminal 7 is in the car, and the mobile terminal 7 It is assumed that the information is acquired when the owner who owns is acquired when riding a bicycle (two bicycles).
And the discrimination | determination part 22 statistically processes the speed which the several speed information in the several locus point contained in 1 trip shows, and divides these speeds for every speed (for every speed zone). That is, the velocity distribution is obtained. FIG. 5A shows a case where the owner who has the mobile terminal 7 is in a car, and FIG. 5B shows that the owner who holds the mobile terminal 7 rides a bicycle (two-wheeled bicycle). It is the result of statistical processing when

  Here, it is generally difficult to run a bicycle in a low speed range of 0 km / h to 4.5 km / h. In other words, in such a low speed zone, the bicycle falls and cannot run. On the other hand, an automobile can frequently travel even in such a low speed zone, particularly when the road is congested.

Accordingly, the determination unit 22 obtains a frequency distribution for the speed information (speed indicated by the speed information) at a plurality of trajectory points included in one trip, and from this frequency distribution, a low speed zone (0 km / h) that makes it difficult for the bicycle to travel. The frequency of speed information included in ~ 4.5 km / h) is obtained.
When the frequency of the speed information included in the low speed zone (0 km / h to 4.5 km / h) is less than a threshold (10%), it is determined that the moving means is an automobile, and this threshold (10% If it is above, it is determined that the moving means is an automobile. In addition, the said threshold value can be changed and can be made into a value of 5 to 20%, for example.

As described above, the determination unit 22 uses the ratio of the speed included in the low speed zone (0 km / h to 4.5 km / h) that makes it difficult for the bicycle to travel as the speed distribution within one trip, and determines this ratio. As a reference, it is determined whether the moving means is an automobile or a bicycle.
And, when the ratio of the speed included in the low speed zone is low in the speed indicated by the speed information at each of the plurality of trajectory points included in one trip, it is determined that the moving means of this trip is a bicycle. When the ratio of the speed included in the low speed zone is high, it is possible to determine that the trip moving means is other than a bicycle (automobile).

  In FIG. 5B, each of the solid line, the alternate long and short dash line, and the broken line is information by different holders, but even if the holders are different, the bicycle is not continuously run in the low speed zone as described above.

[2.2.3 Car-train discrimination (Part 1)]
It is assumed that the acquisition unit 21 performs the same process as in the determination process described above, so that information indicating the time change of the speed of the mobile terminal 7 illustrated in FIG. 6 is acquired in a certain trip. In addition, this information is information when the holder who has the portable terminal 7 is in a car.

As described above, in the storage unit 11, the position information, speed information, and acceleration information at each of a plurality of trajectory points included in each trip are accumulated in the storage unit 11 for each trip (corresponding to the trip number). Yes. For this reason, the acquisition unit 21 stores the speed information included in the predetermined speed band and the acceleration information associated with the speed information from the plurality of speed information in the trip in which the mobile terminal 7 has moved. Can be extracted and obtained.
In the present embodiment, the predetermined speed band is a speed band of 20 km / h to 40 km / h, and the acquisition unit 21 includes speed information included in a speed band of 20 km / h to 40 km / h. Acceleration information corresponding to the speed information is extracted. The speed information in the range surrounded by the ellipse in FIG. 6 is the extracted speed information.

And the discrimination | determination part 22 is the following <condition 1> from the acceleration information in each of several trajectory points calculated | required from the portable terminal 7 which moved within the said predetermined speed zone (20 km / h-40 km / h) within one trip. The ratio of the acceleration information that satisfies is obtained.
<Condition 1> Acceleration information indicating acceleration equal to or greater than the first threshold value

In the present embodiment, the first threshold is 1 m / sec ² . In the present embodiment, the ratio indicated by the acceleration information indicating the acceleration whose absolute value is equal to or greater than the first threshold value is obtained.
That is, the determination unit 22 obtains the ratio of the acceleration information indicating the acceleration having an absolute value of ² m / s or more out of the acceleration information of the mobile terminal 7 that has moved within a trip at a speed of 20 km / h to 40 km / h.
The determination unit 22 determines that the vehicle is an automobile when the ratio is equal to or greater than the second threshold, and determines that the vehicle is a train when the ratio is less than the second threshold. In the present embodiment, the second threshold is 40%.

Furthermore, in the present embodiment, the “proportion of acceleration information” is a proportion related to time. For this reason, the determination unit 22 is the time (Δαt) during which the mobile terminal 7 that has moved within the predetermined speed zone (20 km / h to 40 km / h) travels at an acceleration greater than or equal to the first threshold (1 m / sec ² ) within one trip. Ask for. Further, the determination unit 22 obtains the total time (Δt1 and Δt2 in FIG. 6) that the mobile terminal 7 has moved in the predetermined speed band (20 km / h to 40 km / h) within one trip.
Then, the determination unit 22 uses, as the ratio, a ratio between a time (Δαt) traveled at an acceleration equal to or greater than the first threshold and a time (Δt1 and Δt2 in FIG. 6) the mobile terminal 7 moved at a speed of 20 km / h to 40 km / h. (Δαt / (Δt1 + Δt2) = ε) is obtained.
When this ratio (ε) is equal to or greater than the second threshold (40%), it is determined that the vehicle is an automobile, and when it is less than the second threshold (40%), it is determined that the vehicle is a train.

Incidentally, the first threshold may be varied, for example, be a 0.5 m / sec ² ～1.5M / sec ^2. Moreover, this 2nd threshold value can be changed, for example, can be 30%-50%.

Here, FIG. 7 is an explanatory diagram that graphs the ratio (ratio ε) relating to the acceleration information of the mobile terminal 7 that has moved within one trip in the predetermined speed range (20 km / h to 40 km / h). Shows a case where the mobile terminal 7 is mounted on a car.
On the other hand, FIG. 8 is an explanatory diagram that graphs the ratio (ratio ε) related to the acceleration information of the mobile terminal 7 that has moved within the predetermined speed band (20 km / h to 40 km / h) within one trip. FIG. 8 shows a case where the owner who has the mobile terminal 7 is on the train.
Each of FIGS. 7 and 8 shows the ratio (ratio ε) superimposed on a plurality of trips.

Here, there is a large difference in weight (vehicle weight) between a car and a train. Especially in a transitional speed zone (20 km to 40 km per hour) until the vehicle enters a traveling state (constant speed state), the car is compared with the train. Physically acceleration (acceleration / deceleration) increases.
Also, in general, the driver who drives the car is concerned about the distance from the car traveling in the front in the transitional speed zone (20 km / h to 40 km / h) until the driving state (constant speed state). While repeating relatively strong acceleration and deceleration, for example, the vehicle tends to accelerate until it reaches a cruise state that travels at an average speed of 60 km / h, for example. This “strong acceleration and deceleration” means acceleration and deceleration at which the acceleration (absolute value) is equal to or greater than the first threshold value (1 m / sec ² ) in the present embodiment.
On the other hand, the train accelerates at a relatively constant acceleration in a transitional speed zone (20 km / h to 40 km / h) until it enters a traveling state (constant speed state). That is, the train is “weaker acceleration (deceleration)” than in the case of an automobile, and this “weak acceleration (deceleration)” is an acceleration (acceleration that is less than the first threshold (1 m / sec ² ) in the present embodiment). (Deceleration).

  Accordingly, the distribution of acceleration information (acceleration distribution) at each of a plurality of trajectory points of the mobile terminal 7 moving at a speed included in a transitional speed band (20 km to 40 km / h) until the cruise state is reached is used as a discrimination criterion. This makes it possible to determine whether the moving means is an automobile or a train. That is, as described above, the discriminating unit 22 uses this acceleration information distribution at each of a plurality of trajectory points of the mobile terminal 7 moved in a predetermined speed band (20 km / h to 40 km / h) within one trip as a discriminating reference. Is determined.

Incidentally, when comparing FIG. 8 (rail) and 7 (automobile), the case of FIG. 7, the acceleration is -2m / sec ² ~-1 m / sec ² regions and 1 m / sec ² to 2 m / sec ² region Therefore, it can be said that there are many accelerations whose absolute values are greater than or equal to the first threshold value (1 m / sec ² ). In this case, the moving means is an automobile. Is determined.
In the above embodiment, both the positive acceleration and the negative acceleration are targeted using the absolute value of the acceleration, but only one of them may be used.

And according to this discrimination | determination process, it is not necessary to divide each trip into phases, such as an acceleration area, regarding discrimination | determination between a car and a train.
In other words, in general, a train has a long time to accelerate before reaching a cruise state (constant speed state), and a car has a short time to accelerate before reaching a cruise state (constant speed state) It is conceivable to distinguish between trains and cars by paying attention to the difference in acceleration time zones. For this purpose, each trip is divided into an acceleration region (acceleration phase), a traveling region (cruising phase), and a deceleration region (deceleration phase), and the characteristics of the acceleration region (accelerating time zone) are extracted and moved. It is conceivable to determine the means (whether it is a train or a car).
However, when the speed change of the mobile terminal is obtained from the position information acquired based on the GPS function of the mobile terminal 7 and shown in the speed-time coordinate system, the data becomes as shown in FIG. It may be difficult to properly determine the region and the deceleration region. That is, when the acceleration region is determined from time t1 to t2 in FIG. 9, when it is determined from time t1 to t3, it may be determined from time t1 to t4. When discriminating between trains and automobiles by paying attention to the difference in the acceleration time zone, an error may occur in the discrimination if the judgment of the acceleration region is different.
However, according to the discrimination processing according to the present embodiment, each trip is classified into an acceleration area (acceleration phase), a cruise area (cruising phase), a deceleration area (deceleration phase), etc. Even if it is not divided into (phase), as described above, the moving means can be determined, and the determination error can be reduced.

[2.2.4 Car-train discrimination (Part 2)]
FIG. 10 is an explanatory diagram showing a change over time in the speed of the mobile terminal 7 in one trip. Note that the information shown in FIG. 10 is information when the owner who owns the mobile terminal 7 is in a car.
For example, a driver who drives a car, on average traveling in a traveling state traveling at a speed of 50 km / h to 60 km / h, cares about the distance from the car traveling in front, changes lanes, travels on a road with poor visibility, etc. Due to the influence of the disturbance, it tends to run while repeating acceleration and deceleration. For this reason, as shown in FIG. 10, even after once increasing the speed from 50 km / h to 60 km / h, the speed drops to a speed range of 20 km / h to 40 km / h and may further accelerate (time ta in FIG. 10). , Near tb).

Here, as described in [2.2.3 Car-train discrimination (part 1)], the discrimination unit 22 moves within a trip within a predetermined speed range (20 km / h to 40 km / h). , The time (Δαt) traveled at an acceleration equal to or greater than the first threshold (1 m / sec ² ) is obtained, and the time (time Δt1 and Δt2 in FIG. ) And discriminating between an automobile and a train based on these ratios (Δαt / (Δt1 + Δt2) = ε), information in the vicinity of times ta and tb as shown in FIG. 10 becomes noise.
That is, in FIG. 10, although the moving means is an automobile, the value of (Δt1 + Δt2) is increased by the information around the times ta and tb, so that the moving means is erroneously determined as a train. There is a fear.

Therefore, as another discrimination process for a car and a train, in the case of a car, there are many interchanges of positive and negative accelerations, so a change in the sign of the acceleration can be used as a discrimination standard.
As described above, the acquisition unit 21 can acquire an inflection point where the sign of acceleration changes. That is, the acquisition unit 21 obtains acceleration (acceleration information) from the terminal information i at a certain time (tj), and the acceleration (acceleration information) from the terminal information i at a time (tj + 1) after a predetermined time (1 second). When the positive and negative accelerations are reversed when obtained, processing is performed in which the trajectory point at time (tj) is regarded as an inflection point where the positive and negative accelerations change.
However, when the absolute value of the difference (jerk acceleration) between the acceleration at time (tj + 1) and the acceleration at time (tj) is 1 m / sec ² or more, the trajectory point at time (tj) is the inflection point. Processing that is not considered is performed. If the absolute value of jerk (acceleration difference per unit time) is large at 1 m / second ² or more, it is considered that an inflection point is generated due to GPS positioning noise in the position acquisition unit 4. This is because an inflection point due to a noise is not regarded as an acceleration change during traveling.
FIG. 11 is an explanatory diagram showing a part of FIG. As shown in FIG. 11, in this embodiment, five inflection points h1 to h5 are acquired.

  And when the discrimination | determination part 22 acquires these inflection points h1-h5, from the time ((DELTA) th) from the time of each inflection point to the time to the next locus point, ie, the time of each inflection point, A time (Δth) until a time (tj + 1) at which a locus point after a predetermined time (1 second) is obtained is obtained. In the case of the inflection point h1 shown in FIG. 11, the time from time t1 to time t2 (Δth = 1 second) is obtained. When there are a plurality of inflection points, the time (Δth) is obtained for each, and these are summed (ΣΔth). In the case of FIG. 5, since Δth is 1 second, the sum (ΣΔth) is 5 seconds.

Further, the determination unit 22 has a speed indicated by the speed information at each of the plurality of trajectory points is 5 km / h or more, and an absolute value of acceleration indicated by the acceleration information at each of the acquired trajectory points is 0.005 m / hr. A time zone (ΔT) of ² or more and less than 0.3 m / sec ² is obtained.
Then, the determination unit 22 calculates a ratio (σ) between the total (ΣΔth) and the time zone (ΔT), compares the ratio (σ) with a threshold value, and determines whether the moving means is a train or an automobile. Judge whether there is. That is, when the ratio (σ) indicating the inflection rate is equal to or greater than a threshold, it is determined that the moving means is an automobile, and when the ratio is less than the threshold, it is determined that the moving means is a train. In addition, this threshold value can be made into the value between 20%-30%, for example.

  In this way, the determination unit 22 determines the moving means in this trip based on the inflection point where the positive / negative acceleration changes within one trip. In particular, in this embodiment, an index (ratio σ) indicating the time including the inflection point is used as a discrimination criterion.

  According to this determination processing, it is possible to reduce the occurrence of a determination error as to whether the moving means is an automobile or a train. That is, a driver who drives an automobile tends to travel while repeatedly accelerating and decelerating even if the vehicle is in a cruising state, paying attention to the distance from the automobile traveling ahead. In contrast, when a train enters a cruising state, it accelerates at a relatively constant speed without significant acceleration (deceleration). Therefore, as described above, focusing on the inflection point of the acceleration to determine the moving means makes it difficult for the moving means to be a car or a train, and reduces the occurrence of discrimination errors. Is possible. Further, as in the case of [2.2.4 Car-train discrimination (part 1)], the travel means can be discriminated without dividing each trip into regions (phases).

[2.3 Correction Unit 23]
By the determination process performed by the determination unit 22 described above, the moving means for each of the plurality of trips is determined. FIG. 12 shows a plurality of trips (ID = 1 to 6) and moving means determined for each trip. Thus, when the moving means for each of the plurality of trips is determined, the correction unit 23 performs the following correction process.

In other words, when one trip moving means is different from the preceding and following trip moving means, the correction unit 23 aligns the one trip moving means with the same as the preceding and following trip moving means. However, this correction process is executed only when both of the following <Condition 2> and <Condition 3> are satisfied.
<Condition 2> The time of one trip to be changed is shorter than a predetermined time (threshold). The predetermined time (threshold value) is a value between 75 seconds and 150 seconds, for example.
<Condition 3> The average speed of one trip to be changed is less than or equal to the upper limit value of the speed of the trip moving means before and after the trip. When the moving means is walking, for example, the upper limit value is 9 km / h.

  In the case of FIG. 12, it is determined that the trip moving means with ID = 3 is “automobile”, whereas the moving means of trips with ID = 2 and ID = 4 before and after that is “walking”. It is judged that there is. Therefore, the correction unit 23 corrects the trip moving means with ID = 3 from “automobile” to “walking”. Here, both <Condition 2> and <Condition 3> are satisfied.

  As described above, when both <condition 2> and <condition 3> are satisfied in the trip with ID = 3, there is a high possibility that an error has occurred in the determination of the moving means of the trip with ID = 3. Correct this. As described above, the determining unit 22 determines the moving means of each of the plurality of trips, and even if there is an error in this determination, it is possible to correct it.

As shown in FIG. 13, it is determined that the moving means of one trip (ID = 3) is “automobile”, and the moving means of trips before and after (ID = 2, 4) is “walking”. If it is determined that the speed (average speed) of the mobile terminal 7 in this one trip is larger than a predetermined value (threshold value), the correction unit 23 stops the correction process.
The predetermined value (threshold value) is, for example, a value between 20 km / h and 30 km / h.

  In this case, since the speed of the portable terminal 7 in the trip with ID = 3 is high, it is appropriate that the trip moving means determine that the trip is also “automobile”, and the correction process by the correction unit 23 is stopped. .

[3. About moving means discrimination method)
A moving means determining method performed by the moving means determining apparatus 1 configured as described above will be described.
When receiving the terminal information i transmitted from the mobile terminal 7, the moving means determination device 1 obtains the locus point of the mobile terminal 7 from the position information and time information included in the terminal information i. Further, position information, speed information, acceleration information, and the like at each locus point are also obtained.

Based on the acquired information, the moving means determining device 1 determines from the start of the moving mobile terminal 7 to the next stop as one trip, and as shown in FIG. 12, from the departure point Ps to the destination Pe. Set multiple trips in between.
And the movement means discrimination device 1 (discrimination part 22) discriminate | determines by what kind of movement means the portable terminal 7 moved to each trip. This determination is performed in order from the departure point Ps to the destination Pe. Note that the determination process (the process shown in FIG. 14) described below is performed by the determination unit 22 unless otherwise specified.

  For each trip, the average speed of the trip is determined (step S1 in FIG. 14). When this average speed is within a general speed range (range of 25 km / h to 40 km / h) at which the automobile travels on a general road, the moving means in the trip is determined to be “automobile”.

  In other cases, when the average speed is smaller than the lower limit value (25 km / h) of the range, as the first process (step S2), [2.2.1 Car-walking determination] and [2. 2.2 Discrimination between automobile and bicycle] is performed. That is, using the speed distribution indicated by the speed information at each of a plurality of trajectory points included in one trip, the moving means in the trip is determined.

Specifically, among a plurality of speed information at a plurality of trajectory points included in the trip, the ratio of the speed included in the average walking speed band (3.5 km / h to 5.5 km / h) is a threshold (total 20%) or more, it is determined that the moving means is “walking”, and when it is less than this threshold value (20% of the whole), it is determined that the moving means is “automobile”.
In addition, among a plurality of speed information at a plurality of trajectory points included in the trip, the ratio of the speed included in the low speed zone (0 km / h to 4.5 km / h) is less than the threshold (10% of the whole). In this case, it is determined that the moving means is “bicycle”, and when the moving means is equal to or greater than the threshold (10% of the total), it is determined that the moving means is “automobile”.

Further, in step S1 of FIG. 14, as another case, when the average speed is larger than the upper limit value (40 km / h) of the range, the second process (step S2) is performed separately from the first process (step S2). As S3), [2.2.4 Car-train discrimination (part 2)] is performed. That is, the moving means in this trip is determined based on the inflection point in the trip where the sign of acceleration changes.
Specifically, when the ratio (σ) indicating the inflection rate in the trip is equal to or greater than a threshold value (for example, a value between 20% and 30%), it is determined that the moving unit is “automobile”. . Moreover, when it is less than this threshold value, it is discriminate | determined that a moving means is other than a motor vehicle.

In the present embodiment, when it is determined that the moving means is other than a car as described above, [2.2.3 Car-train discrimination (part 1)] is further performed (step S4). That is, the moving means in this trip is determined using the distribution of acceleration at each of a plurality of trajectory points of the mobile terminal 7 moved in a predetermined speed band (20 to 40 km / hour) within one trip as a determination criterion.
Specifically, the ratio of the acceleration information indicating the acceleration with an absolute value of ² m / s or more is calculated from the acceleration information of the mobile terminal 7 that has moved within the trip at a speed of 20 km / h to 40 km / h. When this ratio is equal to or higher than the second threshold (40%), it is determined as “automobile”, and when it is lower than the second threshold (40%), it is determined as “train”. .

As described above, when the determination unit 22 determines the moving means of the mobile terminal 7 for each of a plurality of trips, the correction unit 23 compares the moving means of one trip with the moving means of trips before and after the trip, and is different. In such a case, a correction process is performed in which one trip moving means is the same as the preceding and following trip moving means in accordance with a predetermined condition (step S5).
For example, as shown in FIG. 12, when it is determined that the moving means of one trip (ID3) is an automobile and the moving means of trips before and after (ID2 and ID4) are determined to be walking, On the condition that the time of one trip (ID3) is shorter than a predetermined time (for example, 100 seconds), the moving means of one trip (ID3) is the same as the moving means of the preceding and following trips (ID2 and ID4) (walking) ) Is performed.
However, when the speed (average speed) of the mobile terminal 7 in one trip (ID3) is larger than a predetermined value (20 km / h to 30 km / h), this correction process is not performed.

As described above, according to the moving means determining apparatus 1 of the present embodiment, the moving means of the mobile terminal 7 in each trip can be determined. In addition, it is possible to reduce the occurrence of the determination error.
For each trip, position information, speed information, acceleration information, and the like are acquired. For this reason, the processing unit 13 can generate provision information (for example, traffic jam information) for the automobile by collecting each piece of information on the trajectory points included in the trip in which the moving means is determined to be an automobile. . This information can be provided (wirelessly transmitted) to automobiles traveling in various places and automobiles traveling on the road corresponding to the trip.

  In addition, according to the moving means discriminating apparatus 1 of the present embodiment as well as the information provided for the car as described above, the moving means of the mobile terminal 7 in each trip can be discriminated. Provided information for the moving means can be generated based on the information collected for each moving means, and this provided information can be provided. For example, each information of the trajectory points in the trip where the moving means is determined to be walking is collected, the provided information for walking is generated, and the provided information is sent to the portable terminal 7 possessed by the owner who is walking. It becomes possible to provide.

In the embodiment, the trip from the start of the mobile terminal 7 (point A in FIG. 2B, time t1) to the next stop (point B in FIG. 2B, time t4) is defined as one trip. However, in addition to this, one trip may be defined from the start to the next start (after the stop) or from the stop to the next stop (after the next start). May be.
In addition, embodiment disclosed this time is an illustration and restrictive at no points. The scope of rights of the present invention is not limited to the above-described embodiments, but includes all modifications within the scope equivalent to the configurations described in the claims.

[Appendix]
Further, the moving means discriminating apparatus 1 can be configured to perform the above-mentioned [2.2.3 Car-train discriminating (part 1)] regarding the discriminating process by the discriminating unit 22.
That is, this moving means discriminating apparatus is as follows.
The moving means discriminating apparatus includes an acquisition unit that acquires speed information indicating the speed of the portable terminal at predetermined time intervals from terminal information transmitted by the moving portable terminal, and what kind of moving means the holder of the portable terminal has And a discriminator for discriminating whether or not it has moved using
From the start or stop of the mobile terminal to the next stop or next start is one trip,
The discriminating unit discriminates the moving means in the trip using the distribution of acceleration indicated by the acceleration information of the mobile terminal that has moved in each trip within a predetermined speed band as a discriminant reference.

Further, the moving means discriminating apparatus can be configured to perform the above-mentioned [2.2.4 Car-train discrimination (No. 2)] regarding the discrimination processing by the discriminator 22.
That is, this moving means discriminating apparatus is as follows.
The moving means discriminating apparatus possesses an acquisition unit that acquires acceleration information indicating the acceleration of the mobile terminal and an inflection point at which the sign of the acceleration changes from terminal information transmitted by the mobile terminal, and the mobile terminal A discriminating unit for discriminating what moving means the owner has moved using,
From the start or stop of the mobile terminal to the next stop or next start is one trip,
The discriminating unit discriminates the moving means in the trip based on the inflection point in each trip.

1: Moving means discriminating device 7: Mobile terminal 10: Server device 21: Acquisition unit 22: Discrimination unit 23: Correction unit

Claims (11)

An acquisition unit for acquiring speed information indicating the speed of the mobile terminal and acceleration information indicating the acceleration of the mobile terminal from the terminal information transmitted by the moving mobile terminal;
A discriminating unit for discriminating which moving means the owner carrying the mobile terminal has moved,
From the start or stop of the mobile terminal to the next stop or next start is one trip,
The determination unit uses the distribution of the speed indicated by the speed information acquired for each trip and the distribution of the acceleration indicated by the acceleration information of the mobile terminal moving in the predetermined speed band within each trip as a determination reference. It is possible to determine the means of travel in the trip,
When the ratio of acceleration information indicating acceleration equal to or higher than a first threshold is equal to or higher than a second threshold among the acceleration information of the mobile terminal that has moved in the predetermined speed band within each trip. A moving means discriminating apparatus characterized by discriminating that it is a car and discriminating that it is a train when it is less than the second threshold. An acquisition unit that acquires speed information indicating the speed of the mobile terminal at predetermined time intervals from the terminal information transmitted by the mobile terminal that moves;
A determination unit for determining what moving means the owner carrying the portable terminal has moved; and
A correction unit that performs correction processing of the determined moving means;
With
From the start or stop of the mobile terminal to the next stop or next start is one trip,
The discriminating unit is capable of discriminating the moving means in the trip, using the speed distribution indicated by the speed information acquired for each trip as a discrimination criterion.
When the moving unit of each of a plurality of trips is determined by the determining unit, when the moving unit of one trip is different from the moving unit of the previous and subsequent trips, the correcting unit determines the moving unit of the one trip, It is possible to perform correction processing that is the same as the travel means for the preceding and following trips,
The correction unit determines that the moving means of the one trip is an automobile and determines that the speed of the portable terminal in the one trip is a predetermined speed when the moving means of the previous and following trips is determined to be walking. The moving means discriminating apparatus characterized in that the correction process is stopped when the value is larger than the value of. An acquisition unit that acquires speed information indicating the speed of the mobile terminal at predetermined time intervals from the terminal information transmitted by the mobile terminal that moves;
A discriminating unit for discriminating which moving means the owner carrying the mobile terminal has moved,
From the start or stop of the mobile terminal to the next stop or next start is one trip,
The discriminating unit can discriminate the moving means in the trip, using the speed distribution indicated by the speed information acquired for each trip as a discrimination criterion.
The determining unit uses a ratio of a speed included in the average walking speed zone of the pedestrian as the speed distribution, determines that the moving unit is walking when the ratio is equal to or greater than a threshold, and the ratio is The moving means discriminating apparatus characterized by discriminating that the moving means is an automobile when it is less than the threshold value . The determination unit uses, as the speed distribution, a ratio of a speed included in a low speed range where it is difficult for a bicycle to travel, and determines that the moving means is a bicycle when the ratio is less than a threshold value. The moving means discriminating apparatus according to any one of Items 1 to 3. The acquisition unit is further capable of acquiring acceleration information indicating the acceleration of the mobile terminal and an inflection point at which the sign of the acceleration changes.
The said discrimination | determination part further discriminate | determines the moving means in the said trip based on the said inflection point in each trip to which the said portable terminal moved, The moving means discrimination device as described in any one of Claims 1-4 .   When the moving unit of each of the plurality of trips is determined by the determining unit, when the moving unit of one trip is different from the moving unit of the previous and subsequent trips, the moving unit of the one trip is changed to the previous trip. The moving means discriminating apparatus according to claim 1, further comprising a correction unit that performs a correction process that is the same as the moving means.   The said correction | amendment part is a moving means discrimination | determination apparatus of Claim 6 which performs the said correction process on condition that the time of said one trip is shorter than predetermined time.   The correction unit determines that the moving means of the one trip is an automobile and determines that the speed of the portable terminal in the one trip is a predetermined speed when the moving means of the previous and following trips is determined to be walking. The moving means discriminating apparatus according to claim 6 or 7, wherein the correction processing is stopped when the value is larger than the value of. A computer program that causes a computer to function as a moving means determination device that determines what moving means the owner carrying the mobile terminal has moved,
From the start or stop of the mobile terminal to the next stop or next start is one trip,
The moving means discriminating device
Obtaining speed information indicating the speed of the mobile terminal and acceleration information indicating the acceleration of the mobile terminal from the terminal information transmitted by the mobile terminal,
Using the speed distribution indicated by the speed information acquired for each trip and the acceleration distribution indicated by the acceleration information of the mobile terminal moving within the trip within a predetermined speed range as a discrimination criterion, Can be determined,
Furthermore, when the proportion of the acceleration information indicating the acceleration equal to or higher than the first threshold among the acceleration information of the mobile terminal that has moved within the trip within the predetermined speed range is equal to or higher than the second threshold, the moving means Is a computer program, and if it is less than a second threshold, it is determined that the moving means is a train. A computer program that causes a computer to function as a moving means determination device that determines what moving means the owner carrying the mobile terminal has moved,
From the start or stop of the mobile terminal to the next stop or next start is one trip,
The moving means discriminating device
Obtaining speed information indicating the speed of the mobile terminal at predetermined time intervals from the terminal information transmitted by the mobile terminal;
Using the speed distribution indicated by the speed information acquired for each trip as a discrimination criterion, it is possible to determine the moving means in the trip,
When the moving means of each of the plurality of trips is determined, if the moving means of one trip is different from the moving means of the previous and subsequent trips, the moving means of the one trip is the same as the moving means of the previous and subsequent trips. Correction processing can be performed,
When it is determined that the moving means of the one trip is an automobile and it is determined that the moving means of the preceding and following trips is walking, the speed of the mobile terminal in the one trip is larger than a predetermined value. In this case, the correction process is stopped. A computer program that causes a computer to function as a moving means determination device that determines what moving means the owner carrying the mobile terminal has moved,
From the start or stop of the mobile terminal to the next stop or next start is one trip,
The moving means discriminating device
Obtaining speed information indicating the speed of the mobile terminal at predetermined time intervals from the terminal information transmitted by the mobile terminal;
Using the speed distribution indicated by the speed information acquired for each trip as a discrimination criterion, it is possible to determine the moving means in the trip,
As the speed distribution, the ratio of the speed included in the average walking speed zone of the pedestrian is used, and when the ratio is equal to or greater than the threshold, it is determined that the moving means is walking, and the ratio is less than the threshold. In this case, the computer program for determining that the moving means is an automobile.