JP7386216B2 - Location management system, program, and location management method - Google Patents

Description

The present invention relates to a location management system, a program, and a location management method.

Patent Document 1 describes a technique for confirming the location of a user, who is the owner of a mobile terminal, using a map displayed on the screen of another mobile terminal or a personal computer located at a remote location.
[Prior art documents]
[Patent document]
[Patent Document 1] Japanese Patent Application Publication No. 2010-171483

According to one embodiment of the invention, a location management system is provided. The location management system may include a transportation means estimating section that estimates the transportation means of a user who owns a location management terminal having a positioning section. The location management system may include an environment estimation unit that estimates the environment in which the user is placed. The location management system may include a transportation means identification section that identifies the user's transportation means based on the estimation result by the transportation estimation section and the estimation result by the environment estimation section.

The transportation means identifying section may identify the user's transportation means by correcting the estimation result by the transportation means estimating section based on the estimation result by the environment estimating section. The means of transportation estimating unit may estimate the means of transportation of the user based on acceleration information of the location management terminal. The means of transportation estimating unit may estimate the means of transportation of the user based on the acceleration information of the position management terminal using artificial intelligence (AI) that determines the means of transportation from acceleration information. The means of transportation estimating unit may estimate the means of transportation of the user based on the positioning history by the position management terminal.

The positioning unit may output a positioning result using at least one of the following positioning functions: GNSS (Global Navigation Satellite System) positioning, Wi-Fi (registered trademark) positioning, and Cell positioning. The environment estimation unit may estimate the environment based on a positioning function used by the positioning unit. The estimation result by the transportation means estimating unit may include scores for each of the plurality of transportation means. The means of transportation identifying section calculates the score of each of the plurality of means of transportation included in the estimation result by the means of transportation estimating section and the score of each of the means of transportation corresponding to the environment estimated by the environment estimating section. The means of transportation of the user may be specified based on the score.

The means of transportation identifying section calculates the score of each of the plurality of means of transportation included in the estimation result by the means of transportation estimating section and the score of each of the means of transportation corresponding to the environment estimated by the environment estimating section. a score, a score of each of the plurality of transportation means included in the previous estimation result by the transportation means estimating section, and a score of each of the plurality of transportation means corresponding to the previous environment estimated by the environment estimation section. The means of transportation of the user may be specified based on each score.

The position management system may include a matching execution unit that executes map matching for correcting a position determined by the positioning unit using map data. The location management system may include a matching execution unit that executes map matching according to the transportation means specified by the transportation device identification unit. When the means of transportation is a bicycle, the matching execution section may correct the position of the positioning result obtained by the positioning section on the road.

When the transportation means is a car, the matching execution unit may correct the position of the positioning result obtained by the positioning unit on the road. When the means of transportation is a car and the speed of movement of the car in which the user is riding is faster than a predetermined threshold, the matching execution unit corrects the position of the positioning result by the positioning unit to be on the expressway. You may do so. When the means of transportation is a train, the matching execution section may correct the position of the positioning result obtained by the positioning section on the track. When the means of transportation is on foot, the matching execution unit does not need to correct the position of the positioning result by the positioning unit.

The position management system may include a positioning result processing section. The positioning result processing unit specifies that the position of the first positioning result by the positioning unit is specified by the transportation means specifying unit based on the position of the second positioning result before the first positioning result. When the position is outside the movable range by the moving means, the position of the first positioning result may be corrected based on the position of the second positioning result and the movable range. The positioning result processing unit specifies that the position of the first positioning result by the positioning unit is specified by the transportation means specifying unit based on the position of the second positioning result before the first positioning result. If the position is outside the movable range by the moving means, the position of the first positioning result may be discarded.

The position management system may include a positioning result processing section. The positioning result processing unit specifies an error range of the first positioning result by the positioning unit by the transportation means specifying unit based on the position of the second positioning result before the first positioning result. If the position is outside the movable range by the moving means, the error range of the first positioning result may be expanded until it overlaps with the movable range.

According to one embodiment of the invention, a location management system is provided. The location management system is a transportation means that estimates the means of transportation of a user who has a location management terminal that has a positioning unit that outputs a positioning result using at least one of the following positioning functions: GNSS positioning, Wi-Fi positioning, and Cell positioning. It may include an estimator. The location management system may include a transportation means identifying section that identifies the user's transportation means based on the estimation result by the transportation means estimating section and the positioning function used by the positioning section.

The means of transportation estimating unit may estimate the means of transportation of the user based on acceleration information of the position management terminal or a positioning history by the position management terminal. The estimation result by the transportation means estimating unit may include scores for each of the plurality of transportation means. The means-of-movement specifying section calculates a score for each of the plurality of means of transportation included in the estimation result by the means-of-movement estimation section, and a score for each of the means for transportation corresponding to the positioning function used by the positioning section. The means of transportation of the user may be specified based on the following. The location management system may be installed in the location management terminal. The location management system may include the location management terminal including the transportation means estimation section. The location management system may include a location management server having a transportation means identification section.

According to one embodiment of the present invention, a program for causing a computer to function as the location management system is provided.

According to one embodiment of the present invention, a computer-implemented location management method is provided. The location management method may include a transportation means estimation step of estimating the transportation means of a user who owns a location management terminal having a positioning unit. The location management method may include an environment estimation step of estimating the environment in which the user is placed. The location management method may include a transportation means identification step of identifying the user's transportation means based on the transportation means estimation result and the environment estimation result.

According to one embodiment of the present invention, a computer-implemented location management method is provided. The location management method is a transportation method that estimates the transportation means of a user who has a location management terminal that has a positioning unit that outputs a positioning result using at least one of the following positioning functions: GNSS positioning, Wi-Fi positioning, and Cell positioning. It may include an estimation stage. The location management method may include a transportation means identification step of identifying the user's transportation means based on the estimation result of the transportation means and the positioning function used by the positioning unit.

Note that the above summary of the invention does not list all the necessary features of the invention. Furthermore, subcombinations of these features may also constitute inventions.

1 schematically shows an example of a location management system 10. An example of the flow of processing in the location management system 10 is schematically shown. An example of the functional configuration of the location management terminal 100 is schematically shown. An example of the functional configuration of the location management server 300 is schematically shown. An example of a transportation means score table 400 is schematically shown. An example of a positioning function score table 410 is schematically shown. An example of map matching is schematically shown. FIG. 3 is an explanatory diagram for explaining the processing content by the positioning result processing unit 124. FIG. FIG. 3 is an explanatory diagram for explaining the processing content by the positioning result processing unit 124. FIG. Another example of the flow of processing in the location management system 10 is schematically shown. An example of the hardware configuration of a computer 1200 functioning as a location management terminal 100, a wireless communication terminal 200, or a location management server 300 is schematically shown.

2. Description of the Related Art There is a known technology that allows a smartphone or the like to confirm the location information of a terminal by detecting the movement of the terminal using an acceleration sensor mounted on the location management terminal and transmitting the positioning results to a location management server. The location management terminal performs GNSS positioning, Wi-Fi positioning, Cell positioning, etc., but the accuracy of positioning depends on the environment at the time of positioning, and if the environment at the time of positioning is bad, positioning deviations occur. There is. The location management system according to the present embodiment provides a technique for specifying the means of transportation of a user who owns a location management terminal, and making it possible to correct the positioning result based on the means of transportation. The location management system improves the accuracy of identifying the means of transportation by, for example, correcting the means of transportation estimated based on the acceleration information and positioning history of the location management terminal based on the positioning function used to obtain the positioning results. improves. Furthermore, the position management system improves positioning accuracy by, for example, performing map matching using the identified means of transportation.

Hereinafter, the present invention will be described through embodiments of the invention, but the following embodiments do not limit the invention according to the claims. Furthermore, not all combinations of features described in the embodiments are essential to the solution of the invention.

FIG. 1 schematically depicts an example of a system 10. The system 10 includes a location management terminal 100. The system 10 may include a location management server 300. System 10 may include a wireless communication terminal 200 . The system 10 may include a NW (NetWork) positioning server 40. System 10 may be an example of a location management system. Note that the location management system may be implemented only by the location management terminal 100.

In the system 10, for example, the location of the user 102 acquired by the location management terminal 100 is transmitted to the location management server 300 via the network 20, and is stored in the location management server 300. Furthermore, the system 10 allows the user 202 using the wireless communication terminal 200 to check the pre-stored location of the user 102 by connecting to the location management server 300 via the wireless communication terminal 200. It is.

The location management terminal 100 is a terminal that allows the location management server 300 to manage the location information of the user 102 of the location management terminal 100. The location management terminal 100 executes processing for reporting location information to the location management server 300 at each predetermined timing.

For example, the location management terminal 100 detects the movement/standstill of the location management terminal 100 at predetermined intervals based on the output of a sensor such as an acceleration sensor mounted on the location management terminal 100, and detects whether the location management terminal 100 is moving or not. , executes processing for reporting location information to the location management server 300. The location management terminal 100 may execute processing for reporting location information to the location management server 300 at predetermined time intervals without detecting movement/stationarity. The location management terminal 100 is used by the user 102, and the measured location information may represent the location of the user 102.

The location management server 300 manages location information of the location management terminal 100. The location management server 300 provides location information of the location management terminal 100, for example, in response to a request from an authenticated device. For example, a parent may have a child carry the location management terminal 100, access the location management server 300 using an app installed on their smartphone, etc., and check the location information of the location management terminal 100.

The location management terminal 100 may be capable of performing mobile communication. The location management terminal 100 accesses the network 20 via a wireless base station, for example. The location management terminal 100 may access the network 20 via a Wi-Fi (registered trademark) access point. Network 20 includes a mobile communications network. Network 20 may include the Internet. The location management terminal 100 communicates with the location management server 300 via the network 20.

The location management terminal 100 has multiple types of positioning functions. The location management terminal 100 may be capable of performing GNSS positioning such as GPS (Global Positioning System) positioning. The location management terminal 100 may be capable of performing NW (NetWork) positioning. Examples of NW positioning include cell positioning and Wi-Fi positioning. The location management terminal 100 transmits, for example, cell information obtained by performing a cell scan and Wi-Fi access point information obtained by performing a Wi-Fi scan to the NW positioning server 40. Location information is acquired from the positioning server 40.

Wireless communication terminal 200 may be capable of performing mobile communication. Wireless communication terminal 200 accesses network 20 via a wireless base station, for example. Wireless communication terminal 200 may access network 20 via a Wi-Fi access point. Wireless communication terminal 200 communicates with location management server 300 via network 20.

The wireless communication terminal 200 has a function of confirming the location of the location management terminal 100 as the location of the user 102. The wireless communication terminal 200 is operated by the user 202 to connect to the location management server 300 via the network 20 . The wireless communication terminal 200 refers to the position information of the position management terminal 100 held in the position management server 300, displays it on the wireless communication terminal 200, and provides it to the user 202. The user 202 is, for example, a parent when the person in possession of the location management terminal 100 is a child.

The location management terminal 100 according to this embodiment has a function of estimating the means of transportation of the user 102 who owns the location management terminal 100. The location management terminal 100 estimates the means of transportation of the user 102 based on the acceleration information of the location management terminal 100 acquired by the acceleration sensor. The location management terminal 100 estimates the means of transportation of the user 102 based on the positioning history of the location management terminal 100, for example.

The location management terminal 100 may identify the means of transportation of the user 102 based on the estimation result of the transportation means of the user 102 and the estimation result of the environment in which the user 102 is placed. The location management terminal 100 may identify the means of transportation of the user 102 based on the estimation result of the means of transportation of the user 102 and the positioning function used to obtain the positioning result.

FIG. 2 schematically shows an example of the flow of processing in the system 10. Here, the location management terminal 100 executes positioning when movement is detected based on acceleration information, and selects a means of transportation identified from the estimation result of the transportation means based on the acceleration information and the estimation result of the environment in which the user 102 is placed. , and the positioning result to the location management server 300 will be described as an example. In this example, the flow of processing in a situation where the user 102 is moving will be described.

In step (step may be abbreviated as S) 102, the position management terminal 100 acquires acceleration information. The location management terminal 100 may acquire acceleration information from an acceleration sensor included in the location management terminal 100. In S104, the location management terminal 100 detects movement of the location management terminal 100 based on the acceleration information acquired in S102.

In S106, the location management terminal 100 estimates the means of transportation of the user 102 based on the acceleration information. Examples of means of transportation include walking, cycling, automobiles, and trains.

In S108, the location management terminal 100 performs positioning and obtains a positioning result. The location management terminal 100 performs GNSS positioning, for example, if GNSS positioning is executable. If GNSS positioning is not possible, the position management terminal 100 performs NW positioning and acquires the positioning result from the NW positioning server 40. If the Wi-Fi positioning is successful, the NW positioning server 40 transmits the positioning result by Wi-Fi positioning to the location management terminal 100, and if the Wi-Fi positioning fails, the NW positioning server 40 transmits the positioning result by Cell positioning to the location management terminal 100. Send to.

In S110, the location management terminal 100 estimates the environment in which the user 102 is placed. The location management terminal 100 estimates the environment in which the user 102 is placed, for example, using the positioning function used to obtain the positioning result obtained in S108.

For example, when GNSS positioning is used, the location management terminal 100 estimates that the environment in which the user 102 is placed is an environment in which GNSS positioning can be performed. That is, the position management terminal 100 estimates that the user 102 is placed in an environment where it can receive radio waves from a satellite.

When Wi-Fi positioning is used, the location management terminal 100 estimates that the environment in which the user 102 is located is an environment in which GNSS positioning cannot be performed but Wi-Fi positioning can be performed. That is, the location management terminal 100 estimates that the user 102 is in an environment where it is unable to receive radio waves from a satellite but can receive radio waves from a Wi-Fi access point. An example of such an environment is a subway station.

When Cell positioning is used, the location management terminal 100 estimates that the environment in which the user 102 is located is an environment in which GNSS positioning and Wi-Fi positioning cannot be performed, but Cell positioning can be performed. In other words, the location management terminal 100 assumes that the user 102 is in an environment where the user 102 cannot receive radio waves from a satellite, cannot receive radio waves from a Wi-Fi access point, but can receive radio waves from a wireless base station. presume. An example of such an environment is a place underground where there is no Wi-Fi access point installed nearby.

In S112, the location management terminal 100 identifies the means of transportation. The location management terminal 100 identifies the means of transportation, for example, based on the estimation result of the transportation means in S106 and the estimation result of the environment in S110.

In S114, the location management terminal 100 transmits the positioning result obtained in S108 and the transportation means specified in S112 to the location management server 300. In S116, the location management server 300 executes a process of correcting the positioning result based on the means of transportation. For example, when the means of transportation is a car and the position of the positioning result is off the road, the position management server 300 corrects the position to be on the road.

In S118, the location management server 300 stores the positioning results. The stored positioning results may be used to respond to inquiries from the user 202 regarding the location of the user 102 .

FIG. 3 schematically shows an example of the functional configuration of the location management terminal 100. The location management terminal 100 includes a storage section 110, an acceleration information acquisition section 112, a positioning section 114, a means of transportation estimation section 116, an environment estimation section 118, a means of transportation identification section 120, a server communication section 122, and a positioning result processing section 124. It's fine. Note that it is not essential for the location management terminal 100 to include all of these.

The storage unit 110 stores various information. The storage unit 110 stores, for example, information regarding the location management server 300 for communicating with the location management server 300. The storage unit 110 stores, for example, information regarding the NW positioning server 40 for communicating with the NW positioning server 40.

The acceleration information acquisition unit 112 acquires acceleration information. The acceleration information acquisition unit 112 may acquire acceleration information output by an acceleration sensor included in the position management terminal 100.

The positioning unit 114 positions the position management terminal 100. The positioning unit 114 may perform positioning using at least one of the following positioning functions: GNSS positioning, Wi-Fi positioning, and Cell positioning. The positioning unit 114 may store the positioning results in the storage unit 110.

The positioning unit 114 may perform positioning in response to predetermined conditions being met. For example, the positioning unit 114 performs positioning when movement of the position management terminal 100 is detected based on the acceleration information acquired by the acceleration information acquisition unit 112. The positioning unit 114 may perform positioning when movement is detected based on the accumulation result of acceleration information over a certain period of time. As a specific example, the positioning unit 114 detects movement/standstill of the location management terminal 100 every 30 seconds based on acceleration information, determines every 3 minutes whether or not there has been movement during the 3 minutes, and determines whether there has been movement. Perform positioning when Note that the positioning unit 114 may perform positioning every time a predetermined time elapses.

For example, the positioning unit 114 first attempts to perform GNSS positioning in response to a predetermined condition being met. If the GNSS positioning is successful, the positioning unit 114 associates the positioning result of the GNSS positioning with information indicating that the GNSS positioning has been performed and stores them in the storage unit 110.

If GNSS positioning fails, the positioning unit 114 performs NW positioning. That is, the positioning unit 114 executes a Wi-Fi scan and a cell scan, and combines the Wi-Fi access point information obtained by executing the Wi-Fi scan and the cell information obtained by executing the cell scan. is transmitted to the NW positioning server 40.

If the Wi-Fi positioning is successful, the NW positioning server 40 transmits the positioning result of the Wi-Fi positioning and information indicating that the Wi-Fi positioning was used to the location management terminal 100. The positioning unit 114 of the position management terminal 100 stores the received positioning result and information in the storage unit 110 in association with each other. If Wi-Fi positioning fails and Cell positioning is successful, NW positioning server 40 transmits the positioning result of Cell positioning and information indicating that Cell positioning was used to location management terminal 100. . When the NW positioning server 40 fails in Wi-Fi positioning and Cell positioning, it transmits information indicating that the positioning has failed to the location management terminal 100. The positioning unit 114 of the position management terminal 100 stores the received positioning result and information in the storage unit 110 in association with each other.

The means of transportation estimating unit 116 estimates the means of transportation of the user 102. The transportation means estimating unit 116 estimates the transportation means of the user 102 based on the acceleration information of the location management terminal 100, for example. The means of transportation estimating unit 116 may estimate the means of transportation using, for example, AI (Artificial Intelligence) that determines the means of transportation from acceleration information. The transportation means estimating unit 116 calculates scores for each of the plurality of types of transportation means, for example, based on the acceleration information, and sets the transportation means with the highest score as the estimation result. Since acceleration information exhibits different characteristics for each means of transportation, such AI can be generated by collecting a large amount of acceleration information for each means of transportation. Any known method may be used to generate the AI. The transportation means estimating section 116 stores the transportation means of the estimation result in the storage section 110. The means of transportation estimating section 116 may store the estimation results in the storage section 110 including scores for each of a plurality of types of means of transportation.

The means of transportation estimating section 116 may estimate the means of transportation of the user 102 based on the positioning history by the positioning section 114. For example, the transportation means estimating unit 116 identifies the travel speed from the positioning history and estimates the transportation method from the travel speed. For example, the means of transportation estimating unit 116 stores in advance the average moving speed of each of a plurality of types of means of transportation, and estimates the means of transportation by comparing the average moving speed with the specified moving speed. The means of transportation estimating unit 116 calculates scores for each of the plurality of types of means of transportation based on the travel speed, for example, and sets the means of transportation with the highest score as the estimation result. The means of transportation estimating section 116 may store the estimation results in the storage section 110 including scores for each of a plurality of types of means of transportation.

Further, the means of transportation estimating unit 116 identifies the attribute of the place where the user 102 has moved, for example from the positioning history, and estimates the means of transportation from the attribute of the place. For example, the means of transportation estimating unit 116 estimates walking if the person is moving on a sidewalk, car if the person is moving on a road, train, etc. if the person is moving on a railway. The means of transportation estimating unit 116 calculates scores for each of the plurality of types of means of transportation, for example, based on the attributes of the location, and sets the means of transportation with the highest score as the estimation result. The means of transportation estimating section 116 may store the estimation results in the storage section 110 including scores for each of a plurality of types of means of transportation.

The means of transportation estimating unit 116 may estimate the means of transportation using both the moving speed and the attributes of the place to which the user has moved. For example, the transportation means estimating unit 116 calculates a score for each of multiple types of transportation methods based on the transportation method, calculates a score for each of multiple types of transportation methods based on the attributes of the location, and calculates a score for each of the multiple types of transportation methods based on the location attribute, and the total score is the highest. The estimation result is the most expensive means of transportation. The means of transportation estimating section 116 may store the estimation results in the storage section 110 including scores for each of a plurality of types of means of transportation.

The environment estimation unit 118 estimates the environment in which the user 102 is placed. The environment estimating unit 118 estimates the environment based on, for example, the positioning function used to obtain the positioning result output by the positioning unit 114 and stored in the storage unit 110.

As a specific example, when GNSS positioning is used, the environment estimation unit 118 estimates the environment in which the user 102 is placed as an environment in which GNSS positioning can be performed. That is, the position management terminal 100 may estimate that the user 102 is placed in an environment where it can receive radio waves from a satellite.

When Wi-Fi positioning is used, the environment estimation unit 118 may estimate that the environment in which the user 102 is located is an environment in which GNSS positioning cannot be performed but Wi-Fi positioning can be performed. That is, the environment estimating unit 118 may estimate that the user 102 is in an environment where it cannot receive radio waves from a satellite but can receive radio waves from a Wi-Fi access point.

When Cell positioning is used, the environment estimating unit 118 may estimate that the environment in which the user 102 is placed is an environment in which GNSS positioning and Wi-Fi positioning cannot be performed, but Cell positioning can be performed. In other words, the environment estimation unit 118 assumes that the user 102 is in an environment where it is unable to receive radio waves from a satellite, cannot receive radio waves from a Wi-Fi access point, and can receive radio waves from a wireless base station. You can estimate it.

The means of transportation identifying unit 120 identifies the means of transportation of the user 102. The means of transportation identification section 120 may identify the means of transportation of the user 102 based on the estimation result by the transportation means estimation section 116 and the estimation result by the environment estimation section 118. For example, the transportation means identifying section 120 identifies the transportation means of the user 102 by correcting the estimation result by the transportation means estimating section 116 based on the estimation result by the environment estimating section 118.

The means of transportation identification section 120 determines the number of means of transportation based on the score of each of the means of transportation included in the estimation result by the means of transportation estimation section 116 and the score of each of the means of transportation corresponding to the environment estimated by the environment estimation section 118. The means of transportation of the user 102 may be specified. The score corresponding to the environment may be set in advance and stored in the storage unit 110, for example. For example, regarding environments in which GNSS positioning can be performed, relatively high scores are set for walking and cycling, and relatively low scores are set for cars and trains. For example, in an environment where GNSS positioning cannot be performed but Wi-Fi positioning can be performed, a relatively high score is set for trains, and a relatively low score is set for walking, cycling, and cars. For example, in an environment where GNSS positioning and Wi-Fi positioning cannot be performed but Cell positioning can be performed, a slightly higher score is set for trains and automobiles than for walking and cycling.

The transportation means specifying section 120 calculates the scores of each of the plurality of transportation means included in the estimation result by the transportation means estimation section 116, the score of each of the plurality of transportation means corresponding to the environment estimated by the environment estimation section 118, and the transportation means estimation section 116. Based on the scores of each of the plurality of means of transportation included in the estimation results before the previous time by the means estimating section 116 and the scores of each of the plurality of means of transportation corresponding to the environment before the previous time estimated by the environment estimating section 118, The means of transportation of the user 102 may be specified.

Note that the location management terminal 100 does not need to include the environment estimation unit 118. In this case, based on the estimation result by the transportation means estimating section 116 and the positioning function used to obtain the positioning result output by the positioning section 114 and stored in the storage section 110, the transportation means specifying section 120, User 102's means of transportation may be identified. The transportation means identification section 120 is used to obtain scores for each of the plurality of transportation means included in the estimation results by the transportation means estimation section 116 and the positioning results output by the positioning section 114 and stored in the storage section 110. The means of transportation of the user 102 may be specified based on the respective scores of the plurality of types of transportation means corresponding to the determined positioning function.

The score corresponding to the positioning function may be set in advance and stored in the storage unit 110, for example. For example, regarding GNSS positioning, relatively high scores are set for walking and cycling, and relatively low scores are set for cars and trains. For example, regarding Wi-Fi positioning, a relatively high score is set for trains, and relatively low scores are set for walking, cycling, and cars. For example, regarding Cell positioning, a relatively high score is set for trains, and relatively low scores are set for walking, cycling, and cars.

The server communication unit 122 communicates with the location management server 300. The server communication unit 122 may transmit the information stored in the storage unit 110 to the location management server 300 via the network 20. The server communication section 122 may transmit the positioning result and the means of transportation specified by the means of transportation identification section 120 to the location management server 300.

The positioning result processing unit 124 executes processing on the positioning results stored in the storage unit 110. The positioning result processing unit 124 corrects the positioning results stored in the storage unit 110, for example. For example, the positioning result processing unit 124 discards the positioning result stored in the storage unit 110.

FIG. 4 schematically shows an example of the functional configuration of the location management server 300. The location management server 300 includes a storage section 302, a positioning result receiving section 304, a matching execution section 306, and a location information providing section 308. Note that it is not essential for the location management server 300 to include all of these.

The storage unit 302 stores various information. The storage unit 302 stores, for example, the identification information of the location management terminal 100 and the identification information of the wireless communication terminal 200 corresponding to the location management terminal 100 in association with each other. The storage unit 302 stores, for example, map data.

The positioning result receiving unit 304 receives information from the position management terminal 100 via the network 20. The positioning result receiving unit 304 may receive positioning results from the location management terminal 100. The positioning result receiving unit 304 may receive the positioning result and the means of transportation from the position management terminal 100. The positioning result receiving unit 304 causes the storage unit 302 to store the received information.

The matching execution unit 306 uses map data stored in the storage unit 302 to execute map matching for correcting the position of the positioning result received by the positioning result receiving unit 304. The matching execution unit 306 may execute map matching according to the positioning results received by the positioning result receiving unit 304 together with the positioning results.

When the means of transportation is a bicycle, the matching execution unit 306 may correct the position of the positioning result to be on the road. For example, when the means of transportation is a bicycle and the position of the positioning result indicates on the road, the matching execution unit 306 does not perform correction, and when the position of the positioning result does not indicate on the road, the matching execution unit 306 corrects Correct upward. For example, the matching execution unit 306 corrects the position of the positioning result to the position on the road closest to the position.

When the means of transportation is a car, the matching execution unit 306 may correct the position of the positioning result obtained by the positioning unit 114 on the road. For example, when the means of transportation is a car and the position of the positioning result indicates on the road, the matching execution unit 306 does not perform correction, and when the position of the positioning result does not indicate on the road, the matching execution unit 306 changes the position of the positioning result to the road. Correct upward. For example, the matching execution unit 306 corrects the position of the positioning result to the position on the road closest to the position.

If the means of transportation is a car and the speed of the car in which the user 102 is riding is faster than a predetermined threshold, the matching execution unit 306 may correct the position of the positioning result to be on the expressway. For example, if the means of transportation is a car and the speed of the car in which the user 102 is riding is faster than a predetermined threshold, the matching execution unit 306 corrects the position of the positioning result to be on the expressway, and If it is slow, the position of the positioning result may be corrected to be on a general road.

If the moving speed of the car in which the user 102 is riding is faster than a predetermined threshold and there is an expressway around the location management terminal 100, the matching execution unit 306 corrects the position of the positioning result to be on the expressway. However, if there is no expressway or if the moving speed is slower than a threshold, the position of the positioning result may be corrected to be on a general road.

The matching execution unit 306 may calculate the moving speed of the car in which the user 102 is riding from the positioning history. The moving speed of the vehicle in which the user 102 is riding may be notified from the location management terminal 100 to the location management server 300. The location management terminal 100 may calculate the moving speed from the positioning history of the location management terminal 100 and notify the location management server 300 of the movement speed.

When the means of transportation is a train, the matching execution unit 306 may correct the position of the positioning result to be on the track. For example, the matching execution unit 306 corrects the position of the positioning result to a position on the track closest to the position.

When the means of transportation is on foot, the matching execution unit 306 does not need to correct the position of the positioning result.

In the above embodiment, a case has been described in which the location management terminal 100 includes the environment estimation section 118, but the present invention is not limited to this, and the location management server 300 may also include the environment estimation section. In this case, the environment estimation unit of the location management server 300 may refer to the information stored in the storage unit 302 and estimate the environment of the user 102 based on the positioning function used to obtain the positioning result. . The estimation method may be the same as that of the environment estimation unit 118.

FIG. 5 schematically shows an example of a transportation score table 400. The means of transportation score table 400 may include an estimation result 402 estimated by the means of transportation estimating unit 116, and a means of transportation score 404 indicating scores of multiple types of means of transportation for each estimation result. The transportation means score table 400 in FIG. 5 includes a score for each transportation method when walking is estimated, a score for each transportation method when it is estimated to be a bicycle, a score for each transportation method when it is estimated to be a car, and An example of the score for each means of transportation when it is estimated to be a train is shown.

The total of the transportation means score 404 for each estimation result 402 may be distributed such that when added up on the horizontal axis, it becomes 1. The transportation score 404 may be the score used to determine the estimation result. The score may be a score calculated based on acceleration information. The score may be a score calculated based on the positioning history.

Note that the transportation means score 404 may be a score set in advance for multiple types of transportation means. In this case, a score may be set according to the degree of similarity between the means of transportation. For example, relatively close scores may be set for walking and cycling, and relatively close scores may be set for cars and trains.

FIG. 6 schematically shows an example of the positioning function score table 410. The positioning function score table 410 includes scores for each of the plurality of types of transportation means for each positioning function used to obtain the positioning result. The positioning function score table 410 may include a positioning function 412 and a means of transportation score 414. The positioning function 412 may represent the type of positioning function used to obtain the positioning result. The transportation means score 414 may be a score for each of multiple types of transportation means for each of the positioning functions 412.

For example, if the positioning function is GNSS positioning, a higher score may be set for walking and cycling than for cars and trains because they are likely to be located outdoors. In the example shown in FIG. 6, the cost is 0.6 for walking, 0.34 for bicycle, 0.03 for car, and 0.03 for train.

For example, if the positioning function is Wi-Fi positioning, a high score may be set for a train because it is likely to be located indoors and a Wi-Fi access point is nearby. For example, in the subway, positioning cannot be performed using GNSS, and there is a high possibility that Wi-Fi installed in trains and stations can be used.

For example, when the positioning function is Cell positioning, a slightly higher score may be set for cars and trains than for walking and cycling, since both GNSS positioning and Wi-Fi positioning fail. Note that the scores illustrated in FIG. 6 are just examples, and any scores may be used.

Here, an example of a process in which the means of transportation identification unit 120 identifies a means of transportation using the means of transportation score table 400 and the positioning function score table 410 will be described. For example, consider a case where the actual means of transportation is walking, the transportation means estimated by the transportation means estimation unit 116 is a bicycle, and the positioning function used to obtain the positioning result is GNSS positioning.

When the means of transportation is determined to be a bicycle, the means of transportation score 404 is 0.3 for walking, 0.5 for bicycle, 0.1 for car, and 0.1 for train. The transportation means score 414 when the positioning function is GNSS is 0.6 for walking, 0.34 for bicycle, 0.03 for car, and 0.03 for train. Here, the transportation means score 404 of the transportation means score table 400 and the transportation means score 414 of the positioning function score table 410 in the current transportation means identification are added as the transportation means score total. The total transportation score is 0.9 for walking, 0.84 for bicycle, 0.13 for car, and 0.13 for train.

Then, the maximum total transportation means score is 0.9 for walking. Therefore, when it is estimated that the means of transportation is a bicycle, the means of transportation specifying unit 120 may specify that the means of transportation is walking, which has the highest total transportation means score. Note that the total transportation means score may be calculated using the sum of multiple transportation means identifications or the average.

For example, the sum or average of the total transportation means score for multiple transportation method identifications is calculated by adding a multiplier to the transportation method score total for multiple transportation method identifications such that the older the transportation method identification timing is, the lower the weight is. may be calculated by multiplying by For example, as an example of specifying a means of transportation multiple times, if t is the current number of times the means of transportation has been specified and Score(t) is the total score of the means of transportation for the tth time, then the following An adjusted score expressed by the formula may also be used.

Score (adjust) [t] = 0.1 x Score [t-4] + 0.2 x Score [t-3] + 0.3 x Score [t-2] + 0.4 x Score [t-1]

The total transportation score may be determined by adding weights to the transportation score 404, transportation score 414, and adjustment score after reflecting the weighting. The total transportation means score in this case may be expressed by the following formula, for example, assuming that W1 to W3 are weighted for each element.

Score[t]=W1×transportation means score 402+W2×transportation means score 412+W3×(Score(adjust)[t])

As mentioned above, instead of using only the estimation results of the means of transportation based on acceleration information or positioning history, by using the environment in which the user 102 is placed, the positioning function used, or past scores , it is possible to improve the accuracy of identifying the means of transportation.

In the above embodiment, the positioning unit 114 first tries GNSS positioning, and if the GNSS positioning fails, executes NW positioning, and the NW positioning server 40 tries Wi-Fi positioning, and if the Wi-Fi positioning fails, the NW positioning server 40 tries Wi-Fi positioning. Although the explanation has been given using an example in which the cell positioning is performed when the cell positioning is performed, the present invention is not limited to this. The positioning unit 114 may perform positioning, for example, by using a plurality of positioning functions in a hybrid manner. For example, when GNSS positioning, Wi-Fi positioning, and Cell positioning are all successful, the positioning unit 114 obtains a positioning result that integrates all of these positioning results, and when GNSS positioning fails, If both Wi-Fi positioning and Cell positioning are successful, obtain a positioning result that integrates both positioning results, and if GNSS positioning and Wi-Fi positioning fail, obtain the positioning result of Cell positioning. . In this case, the positioning function score table 410 includes, in addition to GNSS positioning, Wi-Fi positioning, and Cell positioning, as illustrated in FIG. It may include a score of a transportation means and scores of multiple types of transportation means corresponding to GNSS positioning and Wi-Fi positioning.

FIG. 7 schematically shows an example of map matching. An example of a specific process of the matching execution unit 306 will be described below with reference to the map 450. The map 450 includes a train-time positioning result 452, a train-time matching result 454, a car-time positioning result 456, and a car-time matching result 458.

The train positioning result 452 may be a line connecting points of positioning results determined by the positioning unit 114 while the user 102 is traveling by train. The train time matching result 454 may be a line based on map matching performed by the matching execution unit 306 on the train time positioning result 452 when the specified means of transportation is a train.

The matching execution unit 306 corrects the points of the positioning result on the track near the train time positioning result 452 to create a train time matching result 454. This is because when traveling by train, it is considered that the vehicle normally travels on railroad tracks.

The vehicle positioning result 456 may be a line connecting points of the positioning results determined by the positioning unit 114 while the user 102 is traveling in a vehicle. The car-time matching result 458 may be a line based on map matching performed by the matching execution unit 306 on the car-time positioning result 456 when the specified means of transportation is a car. The matching execution unit 306 corrects the points of the positioning result on the road near the vehicle positioning result 456 to create the vehicle matching result 458. This is because when traveling by car, it is considered that the vehicle normally travels on roads.

Note that the matching execution unit 306 does not need to perform map matching if the specified means of transportation is walking, since there is a possibility that the vehicle will enter a building or the like. If the identified means of transportation is a car and the moving speed is fast, the matching execution unit 306 may perform map matching on the expressway on the map.

As described above, the system 10 may be configured to perform map matching based on the positioning result of the positioning unit 114 and the identification result of the transportation means of the transportation device identification unit 120, and to correct the measurement result. Thereby, even if the accuracy of the positioning result of the positioning unit 114 is low, for example, the accuracy of the measurement result can be improved by map matching with the specified means of transportation.

FIG. 8 is an explanatory diagram for explaining the processing content by the positioning result processing unit 124. The positioning result 504 indicates the position of the latest positioning result. The positioning result 502 indicates the position of the previous positioning result.

The walking range 512 indicates a range within which the user can move on foot based on the positioning result 502. The walking movement range 512 is specified by, for example, the time from when the positioning of the positioning result 502 is performed until the positioning of the positioning result 504 is performed, and the average walking speed.

The bicycle movement range 514 indicates a possible movement range on a bicycle based on the positioning result 502. The bicycle movement range 514 is specified, for example, by the time from when the positioning of the positioning result 502 is performed until the positioning of the positioning result 504 is performed and the average traveling speed of the bicycle.

The car/train movement range 516 indicates a movable range by car or train based on the positioning result 502. The automobile/train movement range 516 is specified by, for example, the time from when the positioning result 502 is performed until the positioning according to the positioning result 504 is performed, and the average moving speed of the car or train.

When the means of transportation specified by the means of transportation specifying unit 120 in response to the positioning result 504 is a car, if the positioning result 504 is correct, the positioning result 504 indicates a position between the bicycle movement range 514 and the car/train movement range 516. However, in the example shown in FIG. 8, the positioning result 504 is located outside the automobile/train movement range 516. Therefore, there is a high possibility that the positioning accuracy of the positioning result 504 is low.

In such a case, the positioning result processing unit 124 may correct the positioning result 504. For example, the positioning result processing unit 124 corrects the positioning result 504 to a position 506 on a line connecting the positioning results 502 and 504, between the bicycle movement range 514 and the car/train movement range 516. Further, in such a case, the positioning result processing unit 124 may discard the positioning result 504.

As described above, the positioning result processing unit 124 uses the transportation means specifying unit 120 in which the position of the first positioning result by the positioning unit 114 is based on the position of the second positioning result before the first positioning result. If the position is outside the movable range by the moving means specified by , the position of the first positioning result may be corrected based on the position and movable range of the second positioning result. This can contribute to improving the accuracy of positioning results. Furthermore, the positioning result processing unit 124 specifies that the position of the first positioning result obtained by the positioning unit 114 is specified by the transportation means specifying unit 120 based on the position of the second positioning result before the first positioning result. If the position is outside the movable range by the moving means, the position of the first positioning result may be discarded. This can reduce the possibility of adopting positioning results with low accuracy.

FIG. 9 is an explanatory diagram for explaining the processing content by the positioning result processing unit 124. The positioning result 504 indicates the position of the latest positioning result. The positioning result 502 indicates the position of the previous positioning result. The walking range 512 indicates a range within which the user can move on foot based on the positioning result 502. The bicycle movement range 514 indicates a possible movement range on a bicycle based on the positioning result 502. The car/train movement range 516 indicates a movable range by car or train based on the positioning result 502.

The error range 522 indicates the range of the positioning error of the positioning result 504. The error range 522 may be stored in the storage unit 110 by the positioning unit 114. When performing GNSS positioning, the positioning unit 114 may identify the error range 522 using a known method and store it in the storage unit 110 together with the positioning result. When performing NW positioning, the positioning unit 114 may receive the error range 522 from the NW positioning server 40 and store it in the storage unit 110 together with the positioning result. The positioning result processing unit 124 may obtain the error range 522 from the storage unit 110.

When the means of transportation specified by the means of transportation specifying unit 120 in response to the positioning result 504 is a car, if the positioning result 504 is correct, the positioning result 504 indicates a position between the bicycle movement range 514 and the car/train movement range 516. However, in the example shown in FIG. 8, the positioning result 504 is located outside the automobile/train movement range 516. Therefore, there is a high possibility that the positioning accuracy of the positioning result 504 is low. Providing the error range 522 together with the positioning result 504 may give a misunderstanding that the location management terminal 100 is located within the error range 522 with relatively high accuracy. In such a case, the positioning result processing unit 124 may correct the error range 522. For example, the positioning result processing unit 124 expands the error range 522 until it overlaps with the automobile/train movement range 516. In the example shown in FIG. 9, the positioning result processing unit 124 corrects the error range 522 to an error range 524.

As described above, the positioning result processing unit 124 is a transportation means specifying unit in which the error range of the first positioning result by the positioning unit 114 is based on the position of the second positioning result before the first positioning result. If the position is outside the movable range by the moving means specified in step 120, the error range of the first positioning result may be expanded to overlap the movable range. Thereby, the reliability of the error range can be improved.

In the above embodiment, the case where the location management terminal 100 includes the positioning result processing unit 124 has been mainly described as an example, but the present invention is not limited to this, and the location management server 300 may include the positioning result processing unit. In this case, the positioning result processing section of the location management server 300 may process the positioning results stored in the storage section 302. The processing contents of the positioning result processing section of the position management server 300 may be the same as the processing contents of the positioning result processing section 124.

FIG. 10 schematically shows another example of the processing flow in the system 10. Here, the differences from FIG. 2 will be mainly explained. In this example, the location management server 300 includes a transportation means identification section.

The steps from S202 for acquiring acceleration information to S208 for acquiring positioning results are the same as from S102 for acquiring acceleration information to S108 for acquiring positioning results in FIG. In S210, the server communication unit 122 of the location management terminal 100 transmits the positioning result obtained in S208 and the means of transportation estimated in S206 to the location management server 300 via the network 20. In S212, the moving means identification unit of the location management server 300 identifies the moving means based on the positioning result and the moving means received in S210. The transportation means identifying section of the location management server 300 may identify the transportation means in the same manner as the transportation means identifying section 120.

In S214, the matching execution unit 306 of the location management server 300 executes a correction process for the positioning result based on the transportation means specified in S212. In S218, the matching execution unit 306 of the location management server 300 stores the positioning result corrected in S216 in the storage unit 302.

FIG. 11 schematically shows an example of the hardware configuration of a computer 1200 that functions as the location management terminal 100, the wireless communication terminal 200, or the location management server 300. The computer 1200 according to this embodiment includes a CPU 1212, a RAM 1214, and a graphics controller 1216, which are interconnected by a host controller 1210. Computer 1200 also includes input/output units such as a communication interface 1222, a storage device 1224, a DVD drive, and an IC card drive, which are connected to host controller 1210 via input/output controller 1220. The DVD drive may be a DVD-ROM drive, a DVD-RAM drive, etc. Storage device 1224 may be a hard disk drive, solid state drive, or the like. Computer 1200 also includes legacy input/output units, such as ROM 1230 and a keyboard, which are connected to input/output controller 1220 via input/output chips 1240.

The CPU 1212 operates according to programs stored in the ROM 1230 and RAM 1214, thereby controlling each unit. Graphics controller 1216 obtains image data generated by CPU 1212, such as in a frame buffer provided in RAM 1214 or itself, and causes the image data to be displayed on display device 1218.

Communication interface 1222 communicates with other electronic devices via a network. Storage device 1224 stores programs and data used by CPU 1212 within computer 1200. The DVD drive reads a program or data from a DVD-ROM or the like and provides it to the storage device 1224. The IC card drive reads programs and data from and/or writes programs and data to the IC card.

ROM 1230 stores therein programs that are dependent on the computer 1200 hardware, such as a boot program that is executed by the computer 1200 upon activation. I/O chip 1240 may also connect various I/O units to I/O controller 1220 via USB ports, parallel ports, serial ports, keyboard ports, mouse ports, etc.

The program is provided by a computer readable storage medium such as a DVD-ROM or an IC card. The program is read from a computer-readable storage medium, installed in storage device 1224, RAM 1214, or ROM 1230, which are also examples of computer-readable storage media, and executed by CPU 1212. The information processing described in these programs is read by the computer 1200 and provides coordination between the programs and the various types of hardware resources described above. An apparatus or method may be configured to implement the operation or processing of information according to the use of computer 1200.

For example, when communication is performed between the computer 1200 and an external device, the CPU 1212 executes a communication program loaded into the RAM 1214 and sends communication processing to the communication interface 1222 based on the processing written in the communication program. You may give orders. The communication interface 1222 reads transmission data stored in a transmission buffer area provided in a recording medium such as a RAM 1214, a storage device 1224, a DVD-ROM, or an IC card under the control of the CPU 1212, and transmits the read transmission data. Data is transmitted to the network, or received data received from the network is written to a reception buffer area provided on the recording medium.

Further, the CPU 1212 causes the RAM 1214 to read all or a necessary part of a file or database stored in an external recording medium such as a storage device 1224, a DVD drive (DVD-ROM), an IC card, etc. Various types of processing may be performed on the data. CPU 1212 may then write the processed data back to an external storage medium.

Various types of information, such as various types of programs, data, tables, and databases, may be stored on a recording medium and subjected to information processing. CPU 1212 performs various types of operations, information processing, conditional determination, conditional branching, unconditional branching, and information retrieval on data read from RAM 1214 as described elsewhere in this disclosure and specified by the program's instruction sequence. Various types of processing may be performed, including /substitutions, etc., and the results are written back to RAM 1214. Further, the CPU 1212 may search for information in a file in a recording medium, a database, or the like. For example, when a plurality of entries are stored in a recording medium, each having an attribute value of a first attribute associated with an attribute value of a second attribute, the CPU 1212 selects the first entry from among the plurality of entries. Search for an entry whose attribute value matches the specified condition, read the attribute value of the second attribute stored in the entry, and then set the attribute value to the first attribute that satisfies the predetermined condition. An attribute value of the associated second attribute may be obtained.

The programs or software modules described above may be stored in a computer-readable storage medium on or near computer 1200. Also, a storage medium such as a hard disk or RAM provided in a server system connected to a dedicated communication network or the Internet can be used as a computer-readable storage medium, thereby allowing the program to be transferred to the computer 1200 via the network. provide.

Blocks in the flowcharts and block diagrams of the present embodiments may represent stages in a process in which an operation is performed or a "part" of a device responsible for performing the operation. Certain steps and units may be provided with dedicated circuitry, programmable circuitry provided with computer readable instructions stored on a computer readable storage medium, and/or provided with computer readable instructions stored on a computer readable storage medium. May be implemented by a processor. Dedicated circuitry may include digital and/or analog hardware circuits, and may include integrated circuits (ICs) and/or discrete circuits. Programmable circuits can perform AND, OR, EXCLUSIVE OR, NAND, NOR, and other logical operations, such as field programmable gate arrays (FPGAs), programmable logic arrays (PLAs), etc. , flip-flops, registers, and memory elements.

A computer-readable storage medium may include any tangible device capable of storing instructions for execution by a suitable device such that a computer-readable storage medium with instructions stored therein may be illustrated in a flowchart or block diagram. A product will be provided that includes instructions that can be executed to create a means for performing specified operations. Examples of computer-readable storage media may include electronic storage media, magnetic storage media, optical storage media, electromagnetic storage media, semiconductor storage media, and the like. More specific examples of computer readable storage media include floppy disks, diskettes, hard disks, random access memory (RAM), read only memory (ROM), erasable programmable read only memory (EPROM or flash memory). , Electrically Erasable Programmable Read Only Memory (EEPROM), Static Random Access Memory (SRAM), Compact Disk Read Only Memory (CD-ROM), Digital Versatile Disk (DVD), Blu-ray Disc, Memory Stick , integrated circuit cards, and the like.

Computer-readable instructions may include assembler instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, state configuration data, or instructions such as Smalltalk®, JAVA®, C++, etc. any source code or object code written in any combination of one or more programming languages, including object-oriented programming languages such as may include.

The computer-readable instructions are for producing means for a processor of a general purpose computer, special purpose computer, or other programmable data processing device, or programmable circuit to perform the operations specified in the flowchart or block diagrams. A general purpose computer, special purpose computer, or other programmable data processor, locally or over a local area network (LAN), wide area network (WAN), such as the Internet, to execute the computer readable instructions. It may be provided in a processor or programmable circuit of the device. Examples of processors include computer processors, processing units, microprocessors, digital signal processors, controllers, microcontrollers, and the like.

Although the present invention has been described above using the embodiments, the technical scope of the present invention is not limited to the range described in the above embodiments. It will be apparent to those skilled in the art that various changes or improvements can be made to the embodiments described above. It is clear from the claims that such modifications or improvements may be included within the technical scope of the present invention.

The execution order of each process, such as an operation, a procedure, a step, and a stage in the apparatus, system, program, and method shown in the claims, specification, and drawings, specifically refers to "before" or "before". It should be noted that they can be implemented in any order unless the output of the previous process is used in the subsequent process. Even if the claims, specifications, and operational flows in the drawings are explained using "first," "next," etc. for convenience, this does not mean that it is essential to carry out the operations in this order. It's not a thing.

10 system, 20 network, 40 NW positioning server, 100 position management terminal, 102 user, 110 storage unit, 112 acceleration information acquisition unit, 114 positioning unit, 116 means of transportation estimation unit, 118 environment estimation unit, 120 means of transportation identification unit, 122 server communication unit, 124 positioning result processing unit, 200 wireless communication terminal, 202 user, 300 location management server, 302 storage unit, 304 positioning result receiving unit, 306 matching execution unit, 308 location information providing unit, 400 transportation means score table , 402 Estimation result, 404 Transportation means score, 410 Positioning function score table, 412 Positioning function, 414 Transportation means score, 450 Map, 452 Train time positioning result, 454 Train time matching result, 456 Car time positioning result, 458 Car time matching Result, 502 Positioning result, 504 Positioning result, 506 Position, 512 Walking range, 514 Bicycle range, 516 Car/train range, 522 Error range, 524 Error range, 1212 CPU, 1214 RAM, 1216 Graphic controller, 1218 Display device, 1220 input/output controller, 1222 communication interface, 1224 storage device, 1230 ROM, 1240 input/output chip

Claims (18)

a transportation means estimation unit that estimates the transportation means of a user who owns a location management terminal having a positioning unit that outputs a positioning result using a positioning function;
An environment estimating unit that estimates an environment in which the user is located based on the positioning function used to obtain the positioning result, and when GNSS positioning is used, the user If it is assumed that the user is in an environment where it can receive Wi-Fi positioning and Wi-Fi positioning is used, the user cannot receive radio waves from the satellite but is in an environment where it can receive radio waves from the Wi-Fi access point. If Cell positioning is used and the user is unable to receive radio waves from the satellite or from the Wi-Fi access point, the user may not be able to receive radio waves from the wireless base station. an environment estimation unit that estimates that the environment is such that it is possible to
Based on the score of each of the plurality of types of transportation means included in the estimation result by the transportation means estimating section and the score of each of the plurality of types of transportation means corresponding to the environment included in the estimation result by the environment estimation section. , a transportation means identification unit that identifies the user's transportation means ;
A score for each of the plurality of types of transportation means corresponding to the environment is set in advance, and for the environment in which the GNSS positioning can be performed, the score is set higher for walking and bicycles than for cars and trains, Regarding the environment in which the GNSS positioning cannot be performed and the Wi-Fi positioning can be performed, a higher score is set for the train than for the walking, the bicycle, and the car, and the GNSS positioning and the Wi-Fi Regarding the environment in which Fi positioning cannot be performed and the Cell positioning can be performed, the score is set higher for the train and the automobile than for the walking and the bicycle . The location management system according to claim 1, wherein the means of transportation identification section identifies the means of transportation of the user by correcting the estimation result by the transportation means estimating section based on the estimation result by the environment estimating section. . 3. The location management system according to claim 1 , wherein the transportation means estimating unit estimates the user's transportation method based on acceleration information of the location management terminal. 4. The means of transportation estimating unit estimates the means of transportation of the user based on the acceleration information of the location management terminal using artificial intelligence (AI) that determines the means of transportation from acceleration information. location management system. The location management system according to claim 1 or 2 , wherein the transportation means estimating unit estimates the user's transportation method based on a positioning history by the location management terminal. The means of transportation identification section is configured to calculate scores for each of the plurality of types of means of transportation included in the estimation result by the means of transportation estimating section and the scores of the plurality of kinds of means of transportation that correspond to the environment estimated by the environment estimating section. each score, each score of the plurality of types of transportation means included in the estimation results before the previous time by the transportation means estimation unit, and the plurality of types corresponding to the environment estimated by the environment estimation unit before the previous time. 2. The location management system according to claim 1 , wherein the means of transportation of the user is specified based on the score of each means of transportation of the user. a matching execution unit that executes map matching for correcting the position of the positioning result by the positioning unit using map data, the matching execution unit that executes map matching according to the means of transportation specified by the means of transportation identification unit; The location management system according to any one of claims 1 to 6 , comprising: a. The position management system according to claim 7 , wherein the matching execution unit corrects the position of the positioning result obtained by the positioning unit on the road when the transportation means is a bicycle. The position management system according to claim 7 or 8 , wherein the matching execution unit corrects the position of the positioning result by the positioning unit on the road when the transportation means is a car. When the means of transportation is a car and the speed of the car in which the user is riding is faster than a predetermined threshold, the matching execution unit corrects the position determined by the positioning unit to be on an expressway. The location management system according to claim 9 . The position management system according to any one of claims 7 to 10 , wherein the matching execution unit corrects the position of the positioning result by the positioning unit on a track when the transportation means is a train. The position management system according to any one of claims 8 to 11 , wherein the matching execution unit does not correct the position of the positioning result by the positioning unit when the means of transportation is on foot. The position of the first positioning result by the positioning unit is outside the movable range by the moving means specified by the moving means specifying unit, based on the position of the second positioning result before the first positioning result. If so, a positioning result processing unit that corrects the position of the first positioning result based on the position of the second positioning result and the movable range, or discards the position of the first positioning result. The location management system according to any one of claims 1 to 12 , comprising: The error range of the first positioning result by the positioning unit is a movable range by the moving means specified by the moving means specifying unit, based on the position of the second positioning result before the first positioning result. The position management system according to any one of claims 1 to 12 , further comprising: a positioning result processing unit that expands an error range of the first positioning result until it overlaps with the movable range when the positioning result is outside the range. . The location management system according to any one of claims 1 to 14 , wherein the location management system is installed in the location management terminal. The location management system includes:
the location management terminal having the means of transportation estimating section;
The location management system according to any one of claims 1 to 15 , comprising: a location management server having the transportation means specifying section. A program for causing a computer to function as the location management system according to any one of claims 1 to 14 . A computer-implemented location management method, comprising:
a transportation means estimation step of estimating the transportation means of a user who owns a location management terminal having a positioning unit that outputs a positioning result using a positioning function;
In the environment estimation step of estimating the environment in which the user is located based on the positioning function used to obtain the positioning result, if GNSS positioning is used, the user receives radio waves from a satellite. If it is assumed that the user is in an environment where Wi-Fi can be received, and Wi-Fi positioning is used, the user is in an environment where the user cannot receive radio waves from the satellite but can receive radio waves from the Wi-Fi access point. If Cell positioning is used, the user cannot receive radio waves from the satellite, cannot receive radio waves from the Wi-Fi access point, but can receive radio waves from the wireless base station. an environment estimation stage of estimating that the environment is placed in the environment;
Based on the score of each of the plurality of types of transportation means included in the estimation result of the transportation means and the score of each of the plurality of types of transportation means corresponding to the environment included in the estimation result of the environment , a transportation means identification step of identifying a transportation means ;
A score for each of the plurality of types of transportation means corresponding to the environment is set in advance, and for the environment in which the GNSS positioning can be performed, the score is set higher for walking and bicycles than for cars and trains, Regarding the environment in which the GNSS positioning cannot be performed and the Wi-Fi positioning can be performed, a higher score is set for the train than for the walking, the bicycle, and the car, and the GNSS positioning and the Wi-Fi Regarding the environment in which Fi positioning cannot be performed and the Cell positioning can be performed, a higher score is set for the train and the automobile than for the walking and the bicycle .

Images