JP2024041464A - Movement purpose determination device, movement purpose determination method, and movement purpose determination program - Google Patents

Abstract

[Problem] To provide a travel purpose determination device capable of determining whether a travel of a passenger using a railway is for a transit purpose or a stay purpose. [Solution] A travel purpose determination device 10 includes a data acquisition unit 12, a compilation unit 13, a histogram creation unit 14, a threshold setting unit 15, and a determination unit 16. The histogram creation unit 14 extracts combinations of exit records and entrance records between two stations in the same area from the ticket gate passage data D1 for a predetermined period compiled by the compilation unit 13, and creates a histogram showing the distribution of time between the exit record time and the entrance record time at the two stations. The threshold setting unit 15 sets a determination threshold for determining whether the travel of each passenger is for a transit purpose or a stay purpose based on the histogram. The determination unit 16 compares the determination threshold set in the threshold setting unit 15 with the time from the exit record to the entrance record for each passenger to determine whether the travel of each passenger is for a transit purpose or a stay purpose. [Selected Figure] Figure 1

Description

The present invention relates to a travel purpose determination device, a travel purpose determination method, and a travel purpose determination program for determining the travel purpose of a passenger using a railway.

A transfer in which a passenger using a railway uses an electronic ticket (IC card, IC chip built into a mobile phone, etc.) to exit through a ticket gate at a railway station and enter through a ticket gate at another railway station. may be carried out.
At this time, a unique identifier is given to the electronic ticket. Then, based on the identifier of the electronic ticket, the route information of the transportation facility that each user boarded is obtained using the passage history of the ticket gate at the station and the purchase history, and the A system is provided to provide information to users.

In addition, several methods have been proposed for calculating the connecting time of passengers using railways outside the ticket gates based on the acquired route information.
For example, Patent Document 1 discloses that entry data including the date and time when a user of a transportation facility enters a ticket gate of a station to use the transportation facility, an identifier of the station of entry, and an identifier of the entrance ticket gate, and retains appearance data including the date and time of exit from the ticket gate of the station after using the transportation facility, an identifier of the exit station, and an identifier of the exit ticket gate, and based on the user identifier, the exit data; A stay data generation unit that combines the above admission data immediately after that and generates stay data including a stay time obtained by subtracting the above entry date and time from the above appearance date and time, and a stay time aggregation unit that aggregates the stay time based on at least one condition of the ticket gate, and the stay time aggregation unit calculates the stay time by excluding data entered and exited at the same ticket gate from the stay data. A transit time calculation system is disclosed that totals transit times by totaling them.

JP2012-242996A

However, the conventional transit time calculation system described above has the following problems.
That is, with the transit time calculation system disclosed in the above publication, it is possible to calculate the transit time from leaving the ticket gate at one railway station to re-entering through the ticket gate at another railway station.
However, with such a system configuration, even if it is possible to grasp the transit time from exiting through the ticket gate at one railway station to re-entering through the ticket gate at another railway station, it is not possible to determine whether the purpose of the trip is a transit or a stay. It was not possible to obtain information on the purpose of movement.

SUMMARY OF THE INVENTION An object of the present invention is to provide a travel purpose determination device, a travel purpose determination method, and a travel purpose determination program that are capable of determining whether a passenger using a railway is traveling for a transit purpose or for a stay. There is a particular thing.

A travel purpose determining device according to a first aspect of the present invention is a travel purpose determining device for determining the travel purpose of a passenger using a railway, and includes a data acquisition section, an aggregation section, a histogram creation section, a threshold value setting section, It is equipped with a determination section. The data acquisition unit acquires ticket gate passage data recorded when a passenger passes through an automatic ticket gate installed at a railway station for each passenger. The aggregation unit aggregates ticket gate passage data for a predetermined period. The histogram creation unit extracts combinations of attendance records and entry records between two stations in the same area from the ticket gate passage data for a predetermined period compiled by the aggregation unit, and extracts the combination of attendance records and entry records at the two stations. Create a histogram that shows the distribution of time between and entry record time. The threshold value setting unit sets a determination threshold value for determining whether the movement of each passenger is for a transit purpose or for a stay based on the histogram created by the histogram creation unit. The determining unit compares the determination threshold set by the threshold setting unit with the time from the entry record for each passenger to the entry record, and determines whether the travel for each passenger is for a transit purpose or for a stay.

Here, it is determined whether each passenger is traveling for a transit purpose or for a stay, using a determination threshold value that is set based on ticket gate passage data and used to estimate the purpose of travel of each passenger. For example, if the determination threshold is 10 minutes, if the time from the appearance record to the admission record is less than 10 minutes, it will be determined that the purpose is for a transit, and if it exceeds 10 minutes, it will be determined to be for the purpose of staying.
Here, the ticket gate passage data is acquired, for example, when a passenger using a railway passes through a ticket gate, and is data such as the entry station, entry time, exit station, and exit time for each passenger.

A transfer is, for example, a movement where there is no particular business at the departure station and the purpose is simply to transfer to another station's railway station.
Staying means, for example, moving when the user has to do errands such as shopping or working at the participating station and stays around the participating station for a certain period of time or more.
Thereby, it is possible to determine whether each passenger is traveling for a transit purpose or for a stay, using a determination threshold value that is set based on the ticket gate passing data and is used to estimate the purpose of travel of each passenger.
As a result, it can be determined whether the passenger using the railway is traveling for a transit purpose or for a stay.

A movement purpose determination device according to a second invention is the movement purpose determination device according to the first invention, further comprising an output section that outputs the determination result of the determination section.
As a result, the output unit can output the determination result of each passenger's purpose of travel, so for example, by providing the output data to a railway company, etc., the railway company can Be able to understand the purpose of movement.

A movement purpose determination device according to a third invention is the movement purpose determination device according to the first or second invention, in which the threshold value setting section determines whether or not the movement purpose is within the same area based on the histogram created by the histogram creation section. Let the time difference between the entry record time and the entry record time immediately after that between two certain stations be x (minutes), and the time difference for taking the mode be m (minutes), and the number ratio at this time can be calculated using the function h. When the time difference x starts from the initial value m and increases sequentially to m+1, m+2, etc.,
(A) h(x)<h(x+1),
(B) h(x) is less than or equal to a predetermined threshold _T1 ;
x, which satisfies both conditions (A) and (B), is set as a determination threshold for determining whether each passenger is traveling for a transit purpose or for a stay.

Here, the threshold value setting unit sets an appropriate determination threshold value for determining whether the movement of each passenger is for a transit purpose or for a stay purpose.
Here, we decided to satisfy both conditions (A) and (B) because, for example, if there are multiple large peaks that satisfy (A) in the created histogram, only condition (A) Numerical values are extracted from the histogram that includes only the second peak, but by adding the condition (B), numerical values are extracted from the histogram that includes the first peak and the second and subsequent peaks, and x This is to make it possible to set. At this time, the threshold value _T1 under the condition (B) is arbitrarily set.
As a result, by setting x that satisfies both conditions (A) and (B) as the determination threshold, an appropriate determination threshold can be set, and the purpose of movement can be determined with high accuracy. .

A movement purpose determination device according to a fourth invention is the movement purpose determination device according to any one of the first to second inventions, in which the threshold value setting section is configured to determine the movement purpose based on the histogram created by the histogram creation section. , Let the time difference between the entry record time and the immediately following entry record time between two stations in the same area be x (minutes), and the time difference for taking the mode be m (minutes), and the number ratio at this time is , using the function h as h(m), and when the time difference x starts from the initial value m and increases sequentially to m+1, m+2,...
(C) h(x) is less than or equal to a predetermined threshold T ₂ (T ₂ < T ₁ );
x that satisfies the condition is set as a determination threshold for determining whether each passenger's movement is for a transit purpose or for a stay.

Here, the threshold value setting unit sets an appropriate threshold value for determining whether the movement of each passenger is for a transit purpose or a stay purpose.
Here, if condition (C) is used, for example, even if the peak of the histogram decreases gently and the condition (A) h(x)<h(x+1) is not satisfied, the peak has become sufficiently small. When the determination is made, the threshold value T ₂ is arbitrarily set under the condition that T ₂ <T ₁ .
Thereby, by setting x that satisfies the condition (C) as the determination threshold, it is possible to set the determination threshold in accordance with the situation, and it is possible to determine an appropriate purpose of movement.

A movement purpose determination device according to a fifth invention is the movement purpose determination device according to any one of the first to second inventions, in which the threshold value setting section uses the Otsu method and the K-means method to Calculate the threshold for determining the distribution for transit and the distribution for stay.
Here, the threshold value setting unit calculates the threshold value for determining the distribution for the purpose of transit and the distribution for the purpose of staying, using, for example, the Otsu method or the K-means method.

Note that the Otsu method is a method of automatically determining a threshold value by determining an approximately optimal binarization threshold value for each object.
The K-means method is a method for determining an appropriate threshold value by clustering objects with similar characteristics into a plurality of similar object groups.
As a result, when a passenger using a railway exits from the ticket gate of a railway station and enters from the ticket gate of another railway station, the threshold value setting unit is used to determine whether the distribution is for the purpose of connecting or the distribution is for the purpose of staying. By calculating the threshold value, an appropriate purpose of movement can be determined.

A movement purpose determination device according to a sixth invention is a movement purpose determination device according to any one of the first to second inventions, wherein the threshold value setting section is configured to provide a data acquisition section in which a passenger passes through an automatic ticket gate. The apparatus further includes a threshold updating unit that updates the determination threshold based on a histogram to which data obtained during a predetermined period before the passing date is added.

As a result, the threshold updating unit updates the determination threshold based on the histogram to which data obtained in the data acquisition unit during a predetermined period before the day of passage when the passenger passed through the ticket gate, for example. Even when there is an unexpected event such as a concert, an appropriate determination threshold can be set, and the purpose of travel can be determined with high accuracy.

A movement purpose determination device according to a seventh invention is a movement purpose determination device according to any one of the first to second inventions, which includes a storage unit that stores data of two stations existing in the same area. It also has the following.
As a result, the storage unit saves data for two stations that exist in the same area, so that, for example, a certain passenger may exit the ticket gate and then enter through the ticket gate of another railway station. It is possible to grasp the combination of two stations located within walking distance in the same area.

The movement purpose determination device according to an eighth invention is the movement purpose determination device according to any one of the first to second inventions, wherein the data acquisition unit acquires ticket gate passing data every day. do.
As a result, the data acquisition unit can set an appropriate judgment threshold even when there is an influence from weather such as rain or wind, by acquiring ticket gate passage data every day. It is possible to determine the purpose of movement with high accuracy.

A movement purpose determination device according to a ninth invention is a movement purpose determination device according to any one of the first to second inventions, wherein the data acquisition unit acquires ticket gate passing data every month. do.
As a result, by acquiring the ticket gate passing data every month, the data acquisition unit can set a determination threshold with less variation, for example, compared to the case where the data is acquired every day. It is possible to determine the purpose of movement with high accuracy.

A movement purpose determination device according to a tenth invention is a movement purpose determination device according to any one of the first to second inventions, wherein the data acquisition unit acquires ticket gate passage data for each day of the week. .
As a result, the data acquisition unit can set appropriate judgment thresholds for weekdays, Saturdays, Sundays, holidays, etc. by acquiring ticket gate passage data for each day of the week, allowing for highly accurate movement. The purpose can be determined.

A movement purpose determination device according to an eleventh invention is a movement purpose determination device according to any one of the first to second inventions, wherein the data acquisition unit acquires ticket gate passage data for each season. .
As a result, the data acquisition unit can set appropriate judgment thresholds even when there are annual events such as Christmas or long holidays such as summer vacation, by acquiring ticket gate passage data for each season. It is possible to determine the purpose of movement with high accuracy.

A travel purpose determination method according to a twelfth invention is a travel purpose determination method for determining the travel purpose of a passenger using a railway, and includes a data acquisition step, an aggregation step, a histogram creation step, a threshold value setting step, A determination step is provided. The data acquisition step acquires ticket gate passage data recorded when a passenger passes through an automatic ticket gate installed at a railway station for each passenger. The aggregation step aggregates ticket gate passage data for a predetermined period. The histogram creation step extracts combinations of attendance records and entrance records between two stations in the same area from the ticket gate passage data for a predetermined period compiled in the aggregation step, and extracts combinations of attendance records and entry records at the two stations. Create a histogram that shows the distribution of time between and entry record time. The threshold value setting step sets a determination threshold value for determining whether the movement of each passenger is for a transit purpose or for a stay, based on the histogram created in the histogram creation step. The determination step compares the determination threshold set in the threshold setting step with the time from the entry record for each passenger to the entry record, and determines whether the travel for each passenger is for a transit purpose or for a stay.
Here, it is determined whether each passenger is traveling for a transit purpose or for a stay, using a determination threshold value that is set based on ticket gate passage data and used to estimate the purpose of travel of each passenger. For example, if the determination threshold is 10 minutes, if the time from the appearance record to the admission record is less than 10 minutes, it will be determined that the purpose is for a transit, and if it exceeds 10 minutes, it will be determined to be for the purpose of staying.

Here, the ticket gate passage data is acquired, for example, when a passenger using a railway passes through a ticket gate, and is data such as the entry station, entry time, exit station, and exit time of each passenger.
A transfer is, for example, a movement where there is no particular business at the departure station and the purpose is simply to transfer to another station's railway station.
Staying means, for example, moving when the user has to do errands such as shopping or working at the participating station and stays around the participating station for a certain period of time or more.
Thereby, it is possible to determine whether each passenger is traveling for a transit purpose or for a stay, using a determination threshold value that is set based on the ticket gate passing data and is used to estimate the purpose of travel of each passenger.
As a result, it can be determined whether the passenger using the railway is traveling for a transit purpose or for a stay.

A travel purpose determination program according to a thirteenth invention is a travel purpose determination program for determining the travel purpose of a passenger using a railway, and includes a data acquisition step, an aggregation step, a histogram creation step, a threshold value setting step, A determination step is provided. The data acquisition step acquires ticket gate passage data recorded when a passenger passes through an automatic ticket gate installed at a railway station for each passenger. The aggregation step aggregates ticket gate passage data for a predetermined period. The histogram creation step extracts combinations of attendance records and entrance records between two stations in the same area from the ticket gate passage data for a predetermined period compiled in the aggregation step, and extracts combinations of attendance records and entry records at the two stations. Create a histogram that shows the distribution of time between and entry record time. The threshold value setting step sets a determination threshold value for determining whether the movement of each passenger is for a transit purpose or for a stay, based on the histogram created in the histogram creation step. The determination step compares the determination threshold set in the threshold setting step with the time from the entry record for each passenger to the entry record, and determines whether the travel for each passenger is for a transit purpose or for a stay.

Here, it is determined whether each passenger is traveling for a transit purpose or for a stay, using a determination threshold value that is set based on ticket gate passage data and used to estimate the purpose of travel of each passenger. For example, if the determination threshold is 10 minutes, if the time from the appearance record to the admission record is less than 10 minutes, it will be determined that the purpose is for a transit, and if it exceeds 10 minutes, it will be determined to be for the purpose of staying.
Here, the ticket gate passage data is acquired, for example, when a passenger using a railway passes through a ticket gate, and is data such as the entry station, entry time, exit station, and exit time for each passenger.

A transfer is, for example, a movement where there is no particular business at the departure station and the purpose is simply to transfer to another station's railway station.
Staying means, for example, moving when the user has to do errands such as shopping or working at the participating station and stays around the participating station for a certain period of time or more.
Thereby, it is possible to determine whether each passenger is traveling for a transit purpose or for a stay, using a determination threshold value that is set based on the ticket gate passing data and is used to estimate the purpose of travel of each passenger.

As a result, it can be determined whether the passenger using the railway is traveling for a transit purpose or for a stay.

According to the travel purpose determining device according to the present invention, it is possible to determine whether a passenger using a railway is traveling for a transit purpose or a staycation purpose.

FIG. 1 is a control block diagram showing the configuration of a movement purpose determination device according to an embodiment of the present invention. FIG. 2 is a diagram showing ticket gate passing data including data presumed to be a transit purpose, transmitted to the travel purpose determination device of FIG. 1 and acquired by the ticket gate. FIG. 2 is a diagram illustrating ticket gate passing data including data estimated to be the purpose of stay transmitted to the travel purpose determination device of FIG. 1 and acquired by the ticket gate. FIG. 2 is a diagram showing area information data including data on a combination of two stations located within walking distance in the same area and stored in the movement purpose determination device of FIG. 1; FIG. 2 is a diagram showing a histogram as an example of the distribution of times between recorded entry times and recorded entrance times between two stations in the same area, created by a histogram creation unit included in the movement purpose determination device of FIG. 1; 2 is a flowchart showing the process flow of a movement purpose determination method performed by the movement purpose determination apparatus of FIG. 1; 7 is a flowchart showing the process flow of a method for calculating a transit time threshold used in the step of calculating a threshold for determining a transit time in FIG. 6. FIG.

The movement purpose determination device 10 and movement purpose determination method according to an embodiment of the present invention will be described below using FIGS. 1 to 7.
Note that in this embodiment, more detailed explanation than necessary may be omitted. For example, detailed explanations of well-known matters or redundant explanations of substantially the same configurations may be omitted. This is to avoid unnecessary redundancy in the following description and to facilitate understanding by those skilled in the art.
Applicants also provide the accompanying drawings and the following description to enable those skilled in the art to fully understand the invention, and are not intended to limit the claimed subject matter thereby. do not have.

(1) Configuration of the travel purpose determination device 10 The travel purpose determination device 10 according to the present embodiment uses a determination threshold value set based on the ticket gate passing data D1 to estimate the travel purpose of each passenger. Determine whether the passenger is traveling for a transit purpose or for a stay.

The movement purpose determining device 10 is connected to an input device 2, a display device 3, and a data server 4, as shown in FIG.
The input device 2 is, for example, a keyboard, and accepts input of area information data D2 to be stored in the movement purpose determination device 10.
As shown in FIG. 4, the area information data D2 is data regarding two stations existing in the same area.

Here, two stations existing in the same area are located within walking distance, for example, where a certain passenger may exit through the ticket gate of one railway station and re-enter through the ticket gate of another railway station. This is a combination of two stations.
Further, the data input from the input device 2 may be transmitted to the data acquisition unit 12 without being stored in the storage unit 11 of the movement purpose determination device 10.

The display device 3 is, for example, a PC (Personal Computer) owned by a railway company, and displays the prediction result of the travel purpose of each passenger predicted by the travel purpose determination device 10.
The data server 4 stores ticket gate passage data D1. As shown in FIG. 1, the ticket gate passage data D1 is generated based on entry records and exit records to railway stations collected from automatic ticket gates 5 installed at each railway station.

As shown in FIGS. 2 and 3, the ticket gate passage data D1 records the passenger's medium ID (for example, an identifier built into an electronic ticket), entry record and exit record, station name, ticket gate passage time, etc. has been done.
Here, the ticket gate passage data D1 is an accumulation of a plurality of trip data. Each trip data is a set of data including an entry record and a corresponding attendance record. The entry record includes the entry station and the time of passing through the automatic ticket gate 5 installed at the entry station. The participation record includes the participating station and the time when the participant passed through the automatic ticket gate 5 installed at the participating station.

The entry record and the attendance record are acquired by the automatic ticket gate machine 5 at different times and at different locations. When acquired by the automatic ticket gate 5, the entry record and exit record include ticket ID information given to each ticket used to pass through the automatic ticket gate 5 (enter or exit). The collected entry records and attendance records are stored on the data server 4 in a state where they are linked to each other via ticket ID information to form trip data.

Trip data shows what kind of ticket one passenger used, when and which station he entered, and when and from which station he departed, and identifies one trip by train from entry to exit. do. One trip has one-to-one correspondence with one "passenger" as its subject.
One or more automatic ticket gates 5 are installed at a railway station, and when a passenger passes through the machine, the automatic ticket gate 5 writes information to an IC card, etc., carried by the passenger, reads the information, and performs fare billing processing. or

Further, as shown in FIG. 1, the movement purpose determination device 10 of the present embodiment includes a storage unit 11, a data acquisition unit 12, a totaling unit 13, a histogram creation unit 14, a threshold value setting unit 15, and a determination unit. 16, a threshold value updating section 17, and an output section 18.
The storage unit 11 stores various data such as area information data D2 input from the input device 2, for example.

This makes it possible to know, for example, two stations that exist in the same area within walking distance that each passenger uses.
Further, for example, when a new station is installed and a new combination of two stations located within walking distance included in the area information data D2 occurs, the storage unit 11 stores the combination of the two stations in a list. You may add or change them.

As a result, for example, the movement purpose determination device 10 can set the determination threshold using the newly added area information data D2 in response to changes in the surrounding environment, such as the installation of a new station. can.
The data acquisition unit 12 acquires the ticket gate passage data D1 transmitted from the data server 4 to the data acquisition unit 12.

At this time, the data acquisition unit 12 acquires ticket gate passing data D1 for a predetermined period, for example, every day, in order to set a more accurate determination threshold in the threshold setting unit 15, which will be described later.
With this, for example, when acquiring the ticket gate passage data D1 on a daily basis, it is possible to set an appropriate determination threshold value, taking into account the influence of weather such as rain and wind.

The data acquisition unit 12 also acquires area information data D2 stored in the storage unit 11. Alternatively, the data acquisition unit 12 acquires the area information data D2 input from the input device 2 and transmitted to the data acquisition unit 12 without storing it in the storage unit 11.
The aggregation unit 13 aggregates ticket gate passage data D1 acquired from the data acquisition unit 12 for a predetermined period (for example, on a daily basis).

The histogram creation unit 14 extracts combinations of appearance records and entry records between two stations in the same area from the ticket gate passing data D1 for a predetermined period compiled by the totalization unit 13, and extracts combinations of appearance records and entry records as shown in FIG. Next, a histogram is created that shows the time distribution between the entry record time and the entry record time at the two stations.
At this time, the histogram may have the vertical axis as the number ratio and the horizontal axis as the time difference between the appearance time and the entrance time.

Further, data after a predetermined time may be aggregated into one peak. For example, in the case of FIG. 5, data after 60 minutes may be included in the 60 minute peak.
The threshold value setting unit 15 sets a determination threshold value for determining whether the movement of each passenger between two stations in the same area is for the purpose of transit or for the purpose of staying, based on the histogram created by the histogram creation unit 14. Set.

Specifically, the threshold value setting unit 15 calculates, for example, the time difference between the entry record time and the immediately following entry record time between two stations in the same area, based on the histogram created by the histogram creation unit 14. is x (minutes), the time difference for taking the mode is m (minutes), the number ratio at this time is h (m) using the function h, and the time difference x starts from the initial value m, m+1, When increasing sequentially as m+2,...
(A) h(x)<h(x+1),
(B) h(x) is less than or equal to a predetermined threshold _T1 ;
x, which satisfies both conditions (A) and (B), is set as a determination threshold for determining whether each passenger is traveling for a transit purpose or for a stay.

Here, as a case where (A) is satisfied, for example, as shown in FIG. 5, the time difference between the entry time and the entrance time, which takes the mode, is m = 5 (minutes), and the number ratio in this case is h (m)=0.16. Using the point obtained above as a starting point, and substituting 5, 6, etc. into (A), when m = 14 (minutes), the coefficient ratio = 0.006, and m = 15 (minutes) In this case, the coefficient ratio=0.007, so the condition (A) is satisfied.

Further, under the above conditions, if the threshold value T ₁ is arbitrarily set and T ₁ =0.02, the condition (B) is satisfied.
Therefore, in the case of the histogram shown in FIG. 5, the threshold value setting unit 15 sets the determination threshold value as x=14 (minutes) when both conditions (A) and (B) are satisfied as described above.

As a result, the determination unit 16 uses the determination threshold (14 minutes) set in the threshold setting unit 15 to determine whether the time difference between the entry time and the entry time is 14 minutes or less, if the time difference is for transit purposes, or if the time difference exceeds 14 minutes. If so, it is determined that the travel is for the purpose of staying.
In other words, as shown in the second and third lines from the top of FIG. The time I entered the station was 7:25 on January 30, 2022. Therefore, since the time difference between the exit time and the entrance time is 4 minutes, the determination unit 16 determines that the purpose is a transit purpose.

Similarly, as shown in the second and third lines from the top of FIG. 3, the time when the passenger corresponding to the medium ID "7654321" departed from B station was 2022/1/30 7:21, The time I entered C station was 8:01 on January 30, 2022. Therefore, since the time difference between the appearance time and the entrance time is 40 minutes, the determination unit 16 determines that the purpose is to stay. If you think about it realistically, it is unnatural for it to take 40 minutes to travel between two stations within walking distance for the purpose of connecting, so it is likely that the passenger in question is staying there for sightseeing, shopping, etc.

Here, the reason for satisfying both conditions (A) and (B) is that, for example, in the created histogram, the time difference between the appearance time and entrance time that takes the most frequent value is used as the starting point. This is because when there are multiple large peaks that satisfy (A), an appropriate determination threshold value can be set by including the plurality of large peaks that satisfy (A).
Note that, based on the histogram created by the histogram creation unit 14, the threshold value setting unit 15 sets the time difference between the entry record time and the entrance record time immediately after that between two stations in the same area as x (minutes). , the time difference for taking the mode is m (minutes), the number ratio at this time is h (m) using the function h, and the time difference x starts from the initial value m and increases sequentially to m+1, m+2,... In such cases,
(C) h(x) is less than or equal to a predetermined threshold T ₂ (T ₂ < T ₁ );
x that satisfies the condition may be set as a determination threshold for determining whether each passenger's movement is for a transit purpose or for a stay.

Here, as a case where (C) is satisfied, for example, when the threshold value T ₂ is arbitrarily set and T ₂ =0.005, the threshold value setting unit 15 sets the appearance time and entrance time that satisfy the condition (C). The time difference x from If condition (C) is used, for example, even if the peak of the histogram decreases gently and does not satisfy the condition (A) h(x) < h(x+1) described above, it is determined that the peak has become sufficiently small. In this case, the threshold value setting unit 15 sets an arbitrary threshold value to determine a determination threshold value suited to the situation, and the determination unit 16 determines an appropriate purpose of movement.

Note that the threshold value setting unit 15 uses, for example, the K-means method, based on the histogram created by the histogram creation unit 14, to set the threshold for determining the distribution for the purpose of transit and the distribution for the purpose of staying. May be set.
When using the K-means method, it is possible to obtain an appropriate determination threshold by clustering objects with similar characteristics into a plurality of similar object groups.
As a result, the threshold setting unit 15 determines whether a passenger using the railway exits from the ticket gate of one railway station and enters from the ticket gate of another railway station, and the distribution for the purpose of connecting and the distribution for the purpose of staying. Calculate the determination threshold. Thereby, the determination unit 16 can determine an appropriate purpose of movement.

As described above, the determination unit 16 uses the determination threshold set in the threshold setting unit 15, the time from the appearance record to the admission record of the medium ID (passenger) shown in FIGS. 2 and 3, and the time shown in FIG. By comparing the indicated entry station and exit station within walking distance, it is determined whether the movement of each passenger between two stations in the same area is for the purpose of transit or stay.
In addition, when the threshold value updating unit 17, which will be described later, updates the determination threshold set by the threshold value setting unit 15, the determining unit 16 again determines whether the passenger is traveling for a transit purpose or for a stay. I can do it.

The threshold updating unit 17 updates the determination threshold set by the threshold setting unit 15 based on the histogram to which data obtained during a predetermined period before the day on which the passenger passed through the ticket gate in the data acquisition unit 12 is added. Update. For example, if a transfer or stay determination is to be made based on the ticket gate passing data D1 on the target day at a later date, the threshold value updating unit 17 uses the data acquisition unit 12 to determine whether the passenger passes through the ticket gate on the day of passage. The resulting data may be added to a histogram.
As a result, even when there is an unexpected event such as a concert, by using the histogram created using the most recent ticket gate passage data D1, the threshold setting unit 15 can set an appropriate judgment threshold. The determination unit 16 can determine the purpose of movement with high accuracy.

The output unit 18 outputs the determination result of the determination unit 16 to, for example, each railway company that owns a railway line including two railway stations in the same area.
As a result, the user of the travel purpose determination device 10 can provide, for example, to a railway company, etc., the data in which the determination result of each passenger's travel purpose has been output via the output unit 18, so that the railway company can , it is possible to understand the purpose of travel of passengers using railways.

As shown in FIG. 1, the travel purpose determination device 10 of this embodiment is a device that determines the travel purpose of a passenger using a railway, and includes a data acquisition section 12, a totalization section 13, and a histogram creation section 14. , a threshold value setting section 15, and a determination section 16. The data acquisition unit 12 acquires ticket gate passage data D1 recorded when a passenger passes through an automatic ticket gate 5 installed at a railway station for each passenger. The totaling unit 13 totals the ticket gate passage data D1 for a predetermined period. The histogram creation unit 14 extracts combinations of appearance records and entrance records between two stations in the same area from the ticket gate passage data D1 for a predetermined period compiled by the aggregation unit 13, and Create a histogram showing the time distribution between the recorded participation time and the recorded entrance time. Based on the histogram created by the histogram creation unit 14, the threshold setting unit 15 sets a determination threshold for determining whether each passenger is traveling for a transit purpose or for a stay. The determining unit 16 compares the determination threshold set by the threshold setting unit 15 with the time from the entry record for each passenger to the entry record, and determines whether the travel for each passenger is for a transit purpose or for a stay.

Thereby, it is possible to determine whether each passenger is traveling for a transit purpose or for a stay, using a determination threshold value that is set based on the ticket gate passage data D1 and for estimating the travel purpose of each passenger.
As a result, it can be determined whether the passenger using the railway is traveling for a transit purpose or for a stay.

<Movement purpose determination method>
The travel purpose determination device 10 of this embodiment executes the travel purpose determination method according to the flowcharts shown in FIGS. 6 and 7.
That is, in the travel purpose determination method of this embodiment, as shown in FIG. 6, in step S1, ticket gate passage data D1 (for one day) of passengers using railways who have passed through the automatic ticket gate 5 is acquired.

Next, in step S2, the aggregation unit 13 acquires area information data D2 including stations in the same area inputted to the input device 2 and stored in the storage unit 11 via the data acquisition unit 12, and obtains the area information data D2 of the estimation target. Select a combination of exit/entrance stations within the same area.
Next, in step S3, the totaling unit 13 acquires the ticket gate passing data D1 acquired in step S1 and the area information data D2 input in step S2 via the data acquisition unit 12, and acquires the data for each medium ID. The ticket gate passing data D1 is totaled.

Next, in step S4, the totaling unit 13 extracts ticket gate passage data D1 of a certain medium ID (a certain passenger) from the ticket gate passage data D1 compiled in step S3.
Next, in step S5, the aggregation unit 13 sorts the ticket gate passage data D1 of a certain medium ID (a certain passenger) extracted in step S4 by ticket gate passage time.
Next, in step S6, the aggregation unit 13 determines whether or not "exit data=>entrance data" for the exit/entrance station combination to be estimated exists in the ticket gate passage data D1 sorted in step S5. do. Here, if the corresponding combination does not exist, the process moves to step S4, and if it does exist, the process moves to step S7.

Next, in step S7, the aggregation unit 13 determines that "exit data => entrance data" for the exit/entrance station combination to be estimated exists in step S6, Extract data => admission data.
Next, in step S8, the totaling unit 13 totalizes (entrance time - exit time) as the time required to travel between the departure station and the entrance station, based on the data extracted in step S7.

Next, in step S9, the aggregation unit 13 determines whether or not the data aggregated in step S8 has been aggregated for all the ticket gate passing data D1. Here, if the totalization is not completed, the process moves to step S4, and if it is completed, the process moves to step S10.
Next, in step S10, the totaling unit 13 totals the required time for each combination of exit/entrance stations to be estimated, based on the data compiled in step S9.

Next, in step S11, the histogram creation section 14 creates a histogram based on the data totaled by the totalization section 13.
Next, in step S12, the threshold value setting unit 15 calculates a threshold value for determining the transit time based on the histogram created by the histogram creation unit 14.
Note that the method for calculating the threshold value for determining the transit time will be explained later.

Next, in step S13, the determination unit 16 determines whether each passenger's movement between two stations in the same area is for the purpose of connecting, based on the determination threshold set by the threshold setting unit 15 or the threshold updating unit 17. The output unit 18 outputs the determination result of the purpose of travel.
Here, the method for calculating the determination threshold calculated in step S12 shown in FIG. 6 will be described in more detail using the flowchart shown in FIG.

That is, as shown in FIG. 7, in step S21, the threshold value setting unit 15 extracts the mode m (minutes) of the histogram based on the histogram created by the histogram creation unit 14.
Next, in step S22, the threshold setting unit 15 initializes the entry/exit time x minutes to m using the mode m (minutes) of the histogram extracted in step S21.

Next, in step S23, the threshold setting unit 15 uses the entrance/exit time x minutes initialized by the mode m (minutes) of the histogram in step S22, and sets the number of cases ratio h(x) for x minutes to x+1 minutes. The number ratio h(x+1) is calculated.
Next, in step S24, the threshold setting unit 15 determines that the number ratio h(x) for x calculated in step S23 and the number ratio h(x+1) for x+1 are such that h(x)<h(x+1). Determine whether the condition is satisfied. Here, if the condition is not satisfied, the process moves to step S26, and if the condition is satisfied, the process moves to step S25.

Next, in step S25, the threshold value setting unit 15 determines whether the number ratio h(x) for x calculated in step S23 satisfies the condition h(x)≦ _T1 . Here, if the condition is not satisfied, the process moves to step S27, and if the condition is satisfied, the process moves to step S28.
Here, if there are multiple large peaks where the number ratio h(x) for x calculated in step S23 and the number ratio h(x+1) for x+1 satisfy the condition h(x)<h(x+1). In order for the threshold value setting unit 15 to set an appropriate determination threshold value by including a plurality of large peaks that satisfy the above conditions, the threshold value _T1 is arbitrarily set.

Next, in step S26, the threshold setting unit 15 determines that the number ratio h(x) for x calculated in step S23 and the number ratio h(x+1) for x+1 are determined to be h(x)< Since it is determined that the condition h(x+1) is not satisfied, it is determined whether the number ratio h(x) satisfies the condition h(x)≦T ₂ . Here, if the condition is not satisfied, the process moves to step S27, and if the condition is satisfied, the process moves to step S28.

Here, although the number ratio h(x) for x calculated in step S23 and the number ratio h(x+1) for x+1 do not satisfy the condition h(x)<h(x+1), the peak In order for the threshold value setting unit 15 to set an appropriate determination threshold value when it is determined that the threshold value has become sufficiently small, the threshold value T ₂ is arbitrarily set under the condition that T ₂ <T ₁ .
Next, in step S27, the threshold setting unit 15 determines that the number ratio h(x) for x calculated in step S23 and the number ratio h(x+1) for x+1 are determined to be h(x)< h(x+1), but in step S25 it was determined that the number ratio h(x) does not satisfy the condition h(x)≦ _T1 , so in step S22 the mode value m(min) of the histogram is ) is substituted with x+1 minutes for the entry/exit time x minutes initialized by Thereafter, the process returns to step S23, and the processes from step S23 onwards are repeatedly executed.

In addition, the number ratio h(x) for x calculated in step S23 and the number ratio h(x+1) for x+1 do not satisfy the condition h(x)<h(x+1) in step S24, and In S26, it is determined that the number ratio h(x) does not satisfy the condition h(x)≦ _T2 , so the threshold value setting unit 15 initializes it with the mode m (minutes) of the histogram in step S22. Substitute x+1 minutes for the arrival and departure time x minutes. Thereafter, the process returns to step S23, and the processes from step S23 onwards are repeatedly executed.

Next, in step S28, the threshold setting unit 15 determines that the number ratio h(x) for x calculated in step S23 and the number ratio h(x+1) for x+1 are determined to be h(x)< Since it is determined in step S25 that the condition h(x+1) is satisfied and the condition h(x)≦T ₁ is satisfied, the determination threshold is set to x minutes.
In addition, the number ratio h(x) for x calculated in step S23 and the number ratio h(x+1) for x+1 do not satisfy the condition h(x)<h(x+1) in step S24, and Since it is determined in S26 that the condition h(x)≦T ₂ is satisfied, the threshold value setting unit 15 sets the determination threshold value to x minutes.
Thereby, the threshold value setting unit 15 can calculate the threshold value for determining the transit time.

[Other embodiments]
Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various changes can be made without departing from the gist of the invention.
(A)
In the embodiment described above, an example has been described in which the present invention is implemented as a movement purpose determination device and a movement purpose determination method. However, the present invention is not limited thereto.

For example, the present invention may be realized as a movement purpose determination program that causes a computer to execute the movement purpose determination method described above.
This travel purpose determination program is stored in a memory (storage unit) installed in the travel purpose determination device, and the CPU reads the travel purpose determination program stored in the memory and causes the hardware to execute each step. More specifically, the CPU reads the movement purpose determination program and executes the above-described data acquisition step, aggregation step, histogram creation step, threshold setting step, and determination step, thereby performing the same as above. effect can be obtained.
Further, the present invention may be realized as a recording medium storing a movement purpose determination program.

(B)
In the embodiment described above, the output unit 18 that outputs the determination result of whether the movement of each passenger between two stations in the same area, determined by the determination unit 16, is for the purpose of transit or for the purpose of stay, This is explained using examples provided within. However, the present invention is not limited thereto.
For example, as a method of utilizing the travel purpose determination result, in addition to outputting the result from the output unit to the outside and utilizing it, it is also possible to simply save it as data in the travel purpose determination device. That is, the movement purpose determination device of the present invention may have a configuration that does not include an output section.

(C)
In the above embodiment, an example is given in which the K-means method is used based on the histogram created by the histogram creation unit 14 to set the threshold for determining the distribution for transit purposes and the distribution for stay. I explained. However, the present invention is not limited thereto.

For example, the K-means method is not necessarily used, and the Otsu method may be used.
Here, when the Otsu method is used, the determination threshold can be automatically determined by determining the approximately optimal binarization threshold for each object.
Even in this case, the threshold setting unit determines whether a passenger using a railway exits from the ticket gate of one railway station and enters from the ticket gate of another railway station, and the distribution for the purpose of connecting and the distribution for the purpose of staying are different. By calculating the determination threshold, the determination unit can determine an appropriate purpose of movement.

(D)
In the above embodiment, the determination threshold set by the threshold value setting unit 15 is set based on the histogram to which data obtained in the data acquisition unit 12 during a predetermined period before the date of passage of the passenger through the ticket gate is added. An example has been described in which the threshold updating unit 17 for updating is provided within the movement purpose determination device 10. However, the present invention is not limited thereto.
For example, since the determination threshold can be set from one day's worth of data, the travel purpose determination device of the present invention may have a configuration that does not include a threshold updating unit.

(E)
In the above embodiment, an example has been described in which the storage unit 11 that stores the area information data D2 acquired by the data acquisition unit 12 is provided within the movement purpose determination device 10. However, the present invention is not limited thereto.

For example, the storage unit that stores the area information data may be provided in a server or the like provided outside the movement purpose determining device. That is, the movement purpose determination device of the present invention may have a configuration that does not include a storage unit as long as it can acquire necessary data from an external storage device or the like.
Even in this case, the data acquisition unit can obtain the same effect as described above by acquiring area information data from a server provided outside the movement purpose determining device.

(F)
In the embodiment described above, in order to set a more accurate determination threshold in the threshold value setting unit 15, an example has been described in which the ticket gate passing data D1 is acquired on a daily basis. However, the present invention is not limited thereto.
For example, it may be an apparatus that acquires data not only on a daily basis, but also on a monthly basis, a day of the week, or a season.

Even in this case, when acquiring ticket gate passage data for each day of the week, the threshold setting unit takes into account the influence of each day of the week, such as weekdays, Saturdays, Sundays, and holidays, where the number of passengers and passenger attributes are assumed to be different. Thus, an appropriate determination threshold can be set.
In addition, when acquiring ticket gate passage data for each season, appropriate judgment thresholds can be set for each purpose by taking into account the effects of annual events such as Christmas and long holidays such as summer vacation. be able to.

Furthermore, when acquiring ticket gate passage data every month, it is possible to set the threshold for judgment from an accurate histogram with less variation by using average passenger flow data over a long period of one month. It is possible.

The movement purpose determination device of the present invention has the effect of being able to determine whether the movement of a passenger using a railway is for a transit purpose or a stay purpose. It is widely applicable to various devices for predicting flow.

2 Input device 3 Display device 4 Data server 5 Automatic ticket gate 10 Travel purpose determination device 11 Storage unit 12 Data acquisition unit 13 Totalization unit 14 Histogram creation unit 15 Threshold setting unit 16 Judgment unit 17 Threshold update unit 18 Output unit D1 Passing through ticket gate Data D2 Area information data

Claims (13)

A travel purpose determination device for determining the travel purpose of a passenger using a railway,
a data acquisition unit that acquires ticket gate passage data recorded when the passenger passes through an automatic ticket gate installed at the railway station for each passenger;
a tabulation unit that tabulates the ticket gate passage data for a predetermined period;
Among the ticket gate passing data for the predetermined period compiled by the aggregation unit, a combination of appearance records and entry records is extracted between two stations in the same area, and the appearance record time and entry record at the two stations are extracted. a histogram creation unit that creates a histogram showing the distribution of time between recording times;
a threshold setting unit that sets a determination threshold for determining whether the movement of each passenger is for a transit purpose or for a stay based on the histogram created by the histogram creation unit;
A determination unit that compares the determination threshold set in the threshold setting unit with the time from the appearance record to the entry record for each passenger to determine whether the travel for each passenger is for a transit purpose or for a stay. and,
A moving purpose determination device equipped with. further comprising an output unit that outputs the determination result in the determination unit,
The movement purpose determining device according to claim 1. The threshold value setting unit calculates the time difference between the entry record time and the entrance record time immediately after that between two stations in the same area by x (minutes) based on the histogram created by the histogram creation unit. The time difference for taking the mode is m (minutes), the number ratio at this time is h (m) using the function h, and the time difference x starts from the initial value m and is sequentially m+1, m+2, etc. In the case of increasing
(A) h(x)<h(x+1),
(B) h(x) is less than or equal to a predetermined threshold _T1 ;
x, which satisfies both conditions (A) and (B), is set as the determination threshold for determining whether the movement of each passenger is for a transit purpose or for a stay purpose;
The movement purpose determining device according to claim 1 or 2. The threshold value setting unit calculates the time difference between the entry record time and the entrance record time immediately after that between two stations in the same area by x (minutes) based on the histogram created by the histogram creation unit. The time difference for taking the mode is m (minutes), the number ratio at this time is h (m) using the function h, and the time difference x starts from the initial value m and is sequentially m+1, m+2, etc. In the case of increasing
(C) h(x) is less than or equal to a predetermined threshold T ₂ (T ₂ < T ₁ );
setting x that satisfies the condition as the determination threshold for determining whether the travel of each passenger is for a transit purpose or for a stay;
The movement purpose determining device according to claim 1 or 2. The threshold value setting unit sets the determination threshold value for the distribution intended for transit and the distribution intended for stay, using the Otsu method and the K-means method.
The movement purpose determining device according to claim 1 or 2. The threshold value setting unit updates the determination threshold value based on the histogram to which data obtained by the data acquisition unit during a predetermined period before the date on which the passenger passed through the automatic ticket gate is added. further comprising a threshold updating unit;
The movement purpose determining device according to claim 1 or 2. further comprising a storage unit for storing data of two stations existing in the same area;
The movement purpose determining device according to claim 1 or 2. The data acquisition unit acquires the ticket gate passing data every day.
The movement purpose determining device according to claim 1 or 2. The data acquisition unit acquires the ticket gate passage data every month.
The movement purpose determining device according to claim 1 or 2. The data acquisition unit acquires the ticket gate passage data for each day of the week.
The movement purpose determining device according to claim 1 or 2. The data acquisition unit acquires the ticket gate passage data for each season.
The movement purpose determining device according to claim 1 or 2. A travel purpose determination method for determining the travel purpose of a passenger using a railway, the method comprising:
a data acquisition step of acquiring ticket gate passage data recorded when the passenger passes through an automatic ticket gate installed at the railway station for each passenger;
an aggregation step of aggregating the ticket gate passage data for a predetermined period;
Among the ticket gate passing data for the predetermined period compiled in the aggregation step, a combination of appearance record and entry record is extracted between two stations in the same area, and the appearance record time and entry record at the two stations are extracted. a histogram creation step of creating a histogram showing the distribution of time between recording times;
a threshold setting step of setting a determination threshold for determining whether the travel of each passenger is for a transit purpose or for a stay based on the histogram created in the histogram creation step;
A determination step of comparing the determination threshold set in the threshold setting step with the time from the attendance record to the entry record for each passenger to determine whether the travel for each passenger is for a transit purpose or for a stay. and,
A method for determining the purpose of movement. A travel purpose determination program for determining the travel purpose of a passenger using a railway,
a data acquisition step of acquiring ticket gate passage data recorded when the passenger passes through an automatic ticket gate installed at the railway station for each passenger;
an aggregation step of aggregating the ticket gate passage data for a predetermined period;
Among the ticket gate passing data for the predetermined period compiled in the aggregation step, a combination of appearance record and entry record is extracted between two stations in the same area, and the appearance record time and entry record at the two stations are extracted. a histogram creation step of creating a histogram showing the distribution of time between recording times;
a threshold setting step of setting a determination threshold for determining whether the travel of each passenger is for a transit purpose or for a stay based on the histogram created in the histogram creation step;
A determination step of comparing the determination threshold set in the threshold setting step with the time from the attendance record to the entry record for each passenger to determine whether the travel for each passenger is for a transit purpose or for a stay. and,
A travel purpose determination program that causes a computer to execute a travel purpose determination method comprising:

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