JP5342892B2 - Moving means determination apparatus, moving means determination method, and moving means determination program - Google Patents

Description

  The present invention relates to a moving means determination apparatus, a moving means determination method, and a moving means determination program for determining a user's current moving means.

  Patent Document 1 describes a method of determining whether a user's current moving means is a walking or a train by using position information obtained from a position measuring device such as a GPS. However, if it is attempted to determine the user's moving means by this method, an erroneous determination is likely to occur, and there arises a problem that it is determined that the moving means has changed although the moving means has not actually changed. If such erroneous determination of the moving means frequently occurs, a service that provides information using the timing when the moving means of the user has changed is hindered.

JP 2003-242169 A

As described above, in the conventional method, it is often erroneously determined that the moving means has changed even though the moving means of the user has not changed, and it is difficult to accurately determine the current moving means of the user. Met.
The present invention has been made paying attention to the above circumstances, and its object is to provide a moving means determination apparatus, a moving means determination method, and a moving means determination program capable of accurately determining a user's current moving means. Is to provide.

  In order to achieve the above object, one aspect of the present invention is an apparatus for determining a moving means of a user, the acquiring means for acquiring information including the position of the user and the time, and a fixed time from a reference time. A determination unit that sequentially determines the moving means of the user based on the acquired information, a storage unit that stores the moving unit of the determination section, and a new determination section by the determination unit. When the moving means is determined, the moving means of the previous determination section is corrected based on the stored moving means and the moving means of the new determination section, and the corrected moving means is stored. And a correction means for storing the corrected movement means in the storage means when different from the movement means.

  According to another aspect of the present invention, there is provided a method for use in an apparatus for determining a moving means of a user, wherein information including the position of the user and its time is acquired, and a determination from a reference time to a certain time before is determined. As the section, sequentially determining the moving means of the user based on the acquired information, storing the moving means of the determination section, and when the moving means of a new determination section is determined in the determination, Based on the stored moving means and the moving means of the new determination section, the moving means of the previous determination section is corrected, and the corrected movement is performed when the corrected moving means is different from the stored moving means. There is provided a moving means determination method characterized by storing means.

  According to another aspect of the present invention, there is provided a program for controlling an apparatus for determining a moving means of a user, the computer acquiring information including the user position and the time, and a constant from a reference time. A process for sequentially determining the user's moving means based on the acquired information, a process for storing the moving means for the determination section, and a new determination section for the determination When the means is determined, the moving means in the previous determination section is corrected based on the stored moving means and the moving means in the new determination section, and the corrected moving means is stored in the stored movement. A moving means determination program is provided that executes a process of storing the corrected moving means in the storage means when different from the means.

  Therefore, according to the present invention, it is possible to provide a moving means determination apparatus, a moving means determination method, and a moving means determination program that can accurately determine a user's current moving means.

The figure which shows an example of the misjudgment of a moving means. The figure for demonstrating the determination method in this embodiment. The figure for demonstrating the determination method in this embodiment. The functional block diagram which shows one Embodiment of a movement means determination apparatus. The figure which shows the hardware structural example of the moving means determination apparatus of FIG. 5 is a flowchart showing an overall flow of operation of the moving means determination apparatus of FIG. The flowchart which shows the process sequence of a moving means determination correction | amendment part. The figure which shows the comparison of the determination precision of the moving means at the time of the case where this method is applied, and the case by a conventional method. The figure which shows the comparison of the frequency | count of a change of the movement means at the time of the case where this method is applied with the case by a conventional method.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a diagram illustrating an example of erroneous determination of a moving unit. The result of having determined a moving means by making a fixed time (n second) before the present time T into a determination area is represented. Even if the user has actually moved the entire section by means α, the determination result incorrectly determines that the user has moved by switching between means α and means β.

  FIG. 2 is a diagram for explaining a determination method in the present embodiment. In order to reduce the erroneous determination of the current moving means, an approach is taken in which the determination accuracy is improved by correcting the determination in the determination section immediately before the current time T. The determination section is a section for issuing a determination of the moving means. If the determination section is n seconds, one moving means is determined from the data for n seconds. As shown in FIG. 2, when the current time is T, the result of the determination section B (the determination section immediately before the determination section A) is obtained using the result of the determination section A and the previously determined moving means (cache). Correction is performed, that is, the moving means for the time from time T-2n to time T-n is corrected. Since erroneous determination often appears suddenly in only one section as shown in FIG. 1, correction can be performed by shifting the determination section by one. The determination patterns using this method are roughly divided into four types as shown in FIG.

  FIG. 4 is a functional block diagram showing an embodiment of the moving means determination apparatus of the present invention. As shown in FIG. 4, the present apparatus includes a position measurement unit 1 that calculates time, latitude, longitude, and the like based on information received from a GPS satellite, and receives data such as position information and a timer to record and move An input / output interface (I / F) 2 for transmitting data to the means determination unit, a recording unit 3 for recording data, a moving means determination unit 4 for performing moving means determination, and a moving means determination The movement means determination correction | amendment part 5 which correct | amends the result of this, and the timer 21 which transmits a start trigger are provided.

  The position measurement unit 1 receives data from a GPS satellite, calculates time, latitude, and longitude based on the received data, and transfers and records the data to the recording unit 3 through the input / output I / F 2. When the input / output I / F 2 receives a start trigger from the operator or the timer 21, the input / output I / F 2 transmits the trigger to the moving means determination unit 4. When the movement means determination unit 4 receives the start trigger, the movement means determination unit 4 requests the recording unit 3 for data necessary for movement means determination (position information and measurement time in the determination section) and receives the corresponding data. The moving means is determined based on the received data, and the determined determination result data is transmitted to the moving means determination correcting unit 5. Upon receipt of the determination result data, the movement means determination correction unit 5 requests cache data from the recording unit 3, and corrects the movement means in the previous determination section based on the received determination result data and cache data. Then, it is recorded in the recording unit 3 as the correction result data of the moving means in the target determination section. When the correction result data is different from the cache data, the cache data recorded in the recording unit 3 is rewritten with the correction result data.

  FIG. 5 is a diagram illustrating a hardware configuration example of the moving unit determination apparatus. This apparatus is roughly divided into a CPU 11, a bus 12, a program memory 13, a data memory 14, a GPS receiver 15, a communication interface 16, an input / output interface 17, an input device 18, a display device 19, a timer interface 20, and It consists of a timer 21.

  The program memory 13 stores an input / output control program 131, a position measurement control program 132, a moving means determination program 133, and a moving means determination correction program 134 as programs necessary for performing the moving means determination process. ing. The data memory 14 is provided with a position information recording area 141, a determination result recording area 142, and a determination result cache recording area 143 as areas for recording data necessary for determining the moving means. Yes. The CPU 11, program memory 13, data memory 14, GPS receiver 15, communication interface 16, input / output interface 17, input device 18, display device 19, timer interface 20, and timer 21 are connected by a bus 12. Therefore, exchange of data etc. is possible between each.

Next, the operation of the moving means determination device will be described. FIG. 6 is a flowchart showing the overall flow of the operation of the moving means determination apparatus.
In FIG. 6, the position measurement unit 1 calculates position information and measurement time from information received from the GPS receiver, and sequentially records them in the recording unit 3 (step S1). The moving means determination unit 4 determines whether or not to make a moving means determination based on the presence or absence of a start trigger (step S2). If the moving means determination is made, the process proceeds to step S3. If not, the process ends. To do.

  The moving means determination unit 4 requests the recording unit 3 for position information and measurement time in the determination section, and receives the requested data from the recording unit 3 (step S3). The moving means determination unit 4 determines whether there is enough data to perform moving means determination (step S4). If the number of data is complete, the process proceeds to step S5. If not, the process proceeds to S2.

  Next, the moving means determination unit 4 obtains the speed and acceleration at each measurement time from the position information received in step S3 (step S5), and determines the moving means in the determination sections A and B from the obtained speed and acceleration. (Step S6). The moving means determination unit 4 delivers the determination result of the moving means determined in step S6 to the moving means determination correction unit 5 (step S7). The movement means determination correction unit 5 corrects the determination result of the movement means in the target determination section (determination section B) by the process described later, records the correction result in the recording section 3, and returns to step S2.

FIG. 7 is a flowchart showing the processing procedure of the moving means determination correction unit 4. As shown in FIG. 7, the correction process branches depending on whether or not there is a cache. If there is a cache, the process is largely divided depending on whether the results of the determination sections A and B are equal.
The moving means determination correction unit 5 requests the recording means 3 for the moving means (cache) determined previously, and if there is a cache, the process proceeds to step S702, and if not, the process proceeds to step S711 (step S701). If there is no cache in step S701, the moving means determination correction unit 5 saves the result of the determination section B in the cache (step S711), and ends the process using the moving means determination result of the determination section B as the result of the target determination section. (Step S753).

  If there is a cache in step S701, the moving means determination correction unit 5 determines whether the results of the determination sections A and B are equal (step S702). If they are equal, the process proceeds to step S721. . If the results of determination sections A and B are equal in step S702, the moving means determination correction unit 5 further determines whether or not the results of determination sections A and B are equal to the cache (step S721). If not equal, the process proceeds to step S722. If the results of the determination sections A and B are not equal to the cache in step S721, the moving means determination correction unit 5 overwrites the cache of the recording unit 3 with the result of the determination section B (step S722) and moves the determination section B. The process is terminated with the means determination result as the result of the target determination section (step S753).

  On the other hand, when the results of the determination sections A and B are different in step S702, the moving means determination correction unit 5 determines whether or not the cache of the determination section B is equal to the result of the determination section B (step S731). If not equal, the process proceeds to step S732. If the result of determination section B is not equal to the cache in step S731, it is determined whether the result of determination section A is equal to the cache (step S732). If the result of determination section A is equal to the cache, the process proceeds to step S751. Then, the moving means determination correcting unit 5 ends the processing with the moving means determination result of the determination section A as the result of the target determination section (step S751). If it is determined in step S732 that the result of the determination section A is not equal to the cache, the process proceeds to step S752, and the moving unit determination correction unit 5 ends the processing using the cache moving unit determination result as the result of the target determination section (step S752).

  The correct answer rate and the number of changes of the moving means were compared between the case of using the method of the present embodiment and the case of no correction. The correct answer rate is the ratio of the number of equal moving means determined as actual moving means for each determination section. FIGS. 8A and 8B show the comparison results of the correct answer rates when the determination is performed at n = 15, 30, 60 (seconds). The number of changes of the moving means is a number indicating how much the moving means has been changed. FIGS. 9A and 9B show the comparison results of the number of changes of the moving means when the determination is performed at n = 15, 30, 60 (seconds).

  From the above comparison, the accuracy of the accuracy rate and the number of changes of the moving means are improved in the method of the present embodiment compared to the case where no correction is performed. In the case of n = 60, there is not much difference in accuracy between the accuracy rate and the number of changes of the moving means, but when n = 30, 15 and the determination interval is shortened, the difference opens greatly.

  Therefore, it can be confirmed that the method of the present embodiment is effective even when the moving means is determined in a short time such as n = 15 and 30. Therefore, the current moving means can be accurately determined by using the method of the present embodiment.

  DESCRIPTION OF SYMBOLS 1 ... Position measurement part, 2 ... Input / output interface, 3 ... Recording part, 4 ... Movement means determination part, 5 ... Movement means determination correction part, 21 ... Timer, 11 ... CPU, 12 ... Bus, 13 ... Program memory, 131 ... Input / output control program, 132 ... Position measurement control program, 133 ... Moving means determination program, 134 ... Moving means determination correction program, 14 ... Data memory, 141 ... Position information recording area, 142 ... Determination result recording area, 143 ... Determination result cache recording area 15 ... GPS receiver 15a ... GPS receiving antenna 16 ... communication interface 16a ... communication antenna 17 ... input / output interface 18 ... input device 19 ... display device 20 ... timer interface Face, 21 ... Timer.

Claims (4)

An apparatus for determining a moving means of a user,
Obtaining means for obtaining information including the position of the user and its time;
A determination unit that sequentially determines the moving unit of the user based on the acquired information, with a determination period from a reference time to a certain time before,
Storage means for storing movement means for the determination section;
When the moving means of the new determination section is determined by the determination means, the moving means stored in the determination section two or more times before the reference time and the moving means of the determination section one time before the reference time Based on the moving means of the new determination section, the moving means of the determination section immediately before the reference time is corrected, and the corrected moving means is stored in the determination section two or more times before the reference time. And a correction means for storing the corrected movement means in the storage means when different from the movement means. An apparatus for determining a moving means of a user,
Obtaining means for obtaining information including the position of the user and its time;
A determination unit that sequentially determines the moving unit of the user based on the acquired information, with a determination period from a reference time to a certain time before,
Storage means for storing movement means for the determination section;
When the determining means determines a moving means of a new determination section,
It is different from the moving means and the moving means moving means and said new diagnostic section determination section before one than the reference time is stored in two or more prior to the judgment section than and the reference time by the same , said with one moving means before the decision interval from the reference time stored in the storage unit, the reference time from the previous decision period preceding determination period than it the reference time to the mobile unit Adopting the means of transportation
Be different from the moving means of the reference time two or more before a the stored moving means in the judgment section and the moving means of the preceding determination period from the reference time is the same than and the new judgment section The moving means of the determination section immediately before the reference time is directly adopted as the moving means of the determination section one time before the reference time ,
If the stored moving means and the moving means of the new determination section is different from the one mobile unit of a previous decision interval from and the reference time to the same two or more previous decision interval from the reference time , the moving means of the new determination section adopts the moving means of the determination section before one than the reference time,
When the moving means of the moving means and the new determination period of the reference time from the two or more previous previous one from the stored moving means the reference time in the judgment section determination section are different from each other, the reference A moving means determination apparatus, comprising: a moving means stored in a determination section two or more times before the reference time in a moving section in a determination section one time before the time . A method used in an apparatus for determining a moving means of a user,
Obtaining information including the user's location and time,
Based on the acquired information, the user's moving means is sequentially determined from a reference time to a certain time before the determination section,
Storing means for moving the determination section;
When the moving means of a new determination section is determined in the determination, the moving means stored in the determination section two or more times before the reference time, the moving means of the determination section one time before the reference time, and the Based on the moving means of the new determination section, the moving means of the determination section one time before the reference time is corrected, and the corrected moving means is stored in the determination section two or more times before the reference time. A moving means determination method comprising: storing a corrected moving means when different from the moving means. A program for controlling an apparatus for determining a moving means of a user,
On the computer,
Processing for obtaining information including the position of the user and its time;
A process of sequentially determining the moving means of the user based on the acquired information, with a determination interval from a reference time to a certain time before,
Processing for storing means for moving the determination section;
When the moving means of a new determination section is determined in the determination, the moving means stored in the determination section two or more times before the reference time, the moving means of the determination section one time before the reference time, and the Based on the moving means of the new determination section, the moving means of the determination section one time before the reference time is corrected, and the corrected moving means is stored in the determination section two or more times before the reference time. A moving means determination program for executing a process of storing the corrected moving means in the storage means when different from the moving means.

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