JP2011229091A - Mobile terminal, position managing server, program and method for controlling transmission timing of control data using air pressure sensor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mobile terminal, a position managing server, a program and a method permitting sensor information, detected by a sensor built in the mobile terminal, to be transmitted to a server at a timing of not affecting the transmission or reception of conversation or communication data based on manipulation by a user.SOLUTION: A mobile terminal with a built-in air pressure sensor comprises transitional status detecting means that detects a first transitional status in which an air pressure level measured by the air pressure sensor shifts from a stable phase to a variable phase over time and/or a second transitional phase in which the air pressure level shifts from the variable phase to the stable phase, and control data transmitting means that transmits, when a transitional phase is detected, control data other than conversation or communication data based on manipulation by the user to an accessible base station via a wireless link.

Description

  The present invention relates to a technique for transmitting sensor information detected by a sensor mounted on a mobile terminal to a server.

  In recent years, with the miniaturization and high accuracy of sensors, one or more sensors have been built in portable terminals such as cellular phones. Examples of the sensor include an acceleration sensor, a geomagnetic sensor, a gyro sensor, and the like, and various ambient information can be measured.

  Conventionally, a technique for estimating the position of a pedestrian carrying a portable terminal based on sensor information detected by a plurality of sensors, even indoors where a radio wave from a GPS (Global Positioning System) satellite cannot be received. (See, for example, Patent Document 1). According to this technique, the movement distance of the user is estimated using an acceleration sensor, and the horizontal movement direction is estimated using a magnetic sensor. And using these two sensor information, the direction of a portable terminal is estimated and the direction of a user's body is estimated. Furthermore, the movement distance and direction in the vertical direction can be estimated using the atmospheric pressure sensor.

  There is also a technique for detecting the walking behavior of a pedestrian indoors, comparing the walking behavior with a feature point on a map, and estimating the position of the pedestrian (see, for example, Patent Document 2). According to this technology, walking behavior is determined based on sensor information detected by a distance sensor, an orientation sensor, an atmospheric pressure (altitude) sensor, or the like built in the mobile terminal. In particular, the indoor position is estimated based on the atmospheric pressure value detected by the atmospheric pressure sensor. Here, a position representing a characteristic change in atmospheric pressure, such as an elevator or a staircase, is used as a feature point. When such a characteristic change in atmospheric pressure is detected, it is determined that the characteristic point has been passed, and the estimated position is corrected. Thereby, the position estimation accuracy can be improved.

  There is also a technique for estimating the degree of congestion of a person at a specific position using a camera image (see, for example, Patent Document 3). According to this technique, the flow rate of a person is estimated by focusing on the motion vector of the person captured from the image. Thereby, the congestion degree of the person is estimated.

JP 2008-281494 A JP 2009-229204 A JP 2009-110152 A

  For example, according to the techniques described in Patent Documents 1 and 2, the detected sensor information is used for position estimation in the mobile terminal. It is also preferable to transmit such sensor information to the location management server without staying in the mobile terminal. The position management server can also estimate the flow rate and congestion degree of a person viewed from the entire map by receiving sensor information from a large number of mobile terminals.

  However, depending on the timing at which the sensor information is transmitted to the server, a situation occurs in which call communication data based on the user operation cannot be transmitted / received. When the wireless link for transmitting the sensor information to the server is established, the mobile terminal rejects the call based on the user operation.

  Therefore, the present invention provides a mobile terminal, a position management server, a program, and a method capable of transmitting control data to a position management server at a timing that does not affect transmission / reception of call communication data based on a user operation. Objective.

According to the present invention, a portable terminal incorporating a pressure sensor,
The barometric pressure value measured by the barometric sensor detects the first transition state in which the stable state shifts to the fluctuation state and / or the second transition state in which the transition from the fluctuation state to the stable state occurs with time. A transition state detection means;
Control data transmission means for transmitting control data other than call communication data based on a user operation to a base station via a wireless link when a transition state is detected.

According to another embodiment of the mobile terminal of the present invention, the transition state detection means,
The stable state is a state in which the atmospheric pressure value does not change almost constant over time,
The fluctuating state is also preferably a state in which the atmospheric pressure value is incremented or decremented substantially constant over time.

  According to another embodiment of the portable terminal of the present invention, it is also preferable that the control data transmission means transmits the atmospheric pressure value as the control data.

  According to another embodiment of the portable terminal of the present invention, the control data transmission means preferably transmits the control data including the atmospheric pressure value a plurality of times for each predetermined time unit after the detection of the transition state.

  According to another embodiment of the portable terminal of the present invention, the control data transmitting means further includes, in the control data, acceleration data based on the acceleration sensor, geomagnetic data based on the geomagnetic sensor, and / or control data for call communication. Inclusion is also preferred.

According to another embodiment of the mobile terminal of the present invention,
The mobile device is carried by a user who rides on a lift and skis on a course at a ski resort,
About transition status detection means
The first transition state represents a state immediately after the lift ride at a low altitude position, or a state immediately after the start of the course run at a high altitude position,
It is also preferable that the second transition state represents a state immediately after getting off the lift at a high altitude position, or a state immediately after the course run ends at a low altitude position.

According to the present invention, a location management server that receives a barometric pressure value as control data from the mobile terminal described above,
Altitude table with altitude registered for each barometric pressure value,
Reference position information receiving means for receiving, from an external measurement device, reference position information that associates an atmospheric pressure value and an altitude as a reference of the altitude table;
Map information storage means for storing map information;
A current position estimating means for deriving an altitude from an atmospheric pressure value using an altitude table and estimating the current position by associating the altitude with map information;

  According to the position management server of the present invention, it is preferable that the position management server further includes a congestion degree estimation unit that derives a congestion degree corresponding to a predetermined position range based on the current positions of a large number of mobile terminals estimated by the current position estimation unit. .

An external measuring device capable of communicating with the position management server described above,
The external measuring device is installed in any location where there is a mobile terminal carried by the user,
An atmospheric pressure sensor;
Transmitting means for transmitting, to the position management server, reference position information including an atmospheric pressure value detected by the atmospheric pressure sensor and fixed altitude data at the installation position.

According to the present invention, there is provided a system having the above-described portable terminal and the above-described location management server,
The map information accumulating means includes the elevation at the lift entrance, lift exit, course start start and / or course end, and the change (inclination) of the atmospheric pressure value according to the elapsed time at the lift and / or the elapsed time at the course. And changes in atmospheric pressure according to the
If the current position estimation means receives the atmospheric pressure value a plurality of times when the mobile terminal is in the transition state, the current position estimating means calculates the elapsed time from the difference between the atmospheric pressure value at time t and the atmospheric pressure value at time t-tm before that time. The change in the atmospheric pressure value according to the atmospheric pressure value is calculated, the change in the atmospheric pressure value of the lift and the course in the map information closest to the change in the atmospheric pressure value is detected, and it is estimated that the current position is on the lift or the course. .

According to the present invention, a program for causing a computer mounted on a portable terminal having a built-in barometric sensor to function,
The barometric pressure value measured by the barometric sensor detects the first transition state in which the stable state shifts to the fluctuation state and / or the second transition state in which the transition from the fluctuation state to the stable state occurs with time. A transition state detection means;
When detecting the transition state, the computer is caused to function as control data transmission means for transmitting control data other than call communication data based on a user operation to a base station via a wireless link.

According to the present invention, there is provided a program for causing a computer mounted on a position management server that receives an atmospheric pressure value as control data from the above-described portable terminal,
Altitude table with altitude registered for each barometric pressure value,
Reference position information receiving means for receiving, from an external measurement device, reference position information that associates an atmospheric pressure value and an altitude as a reference of the altitude table;
Map information storage means for storing map information;
An altitude is derived from an atmospheric pressure value using an altitude table, and the computer is caused to function as current position estimating means for estimating the current position by associating the altitude with map information.

According to the present invention, in a control data transmission method using a mobile terminal incorporating a barometric pressure sensor,
The barometric pressure value measured by the barometric sensor detects the first transition state in which the stable state shifts to the fluctuation state and / or the second transition state in which the transition from the fluctuation state to the stable state occurs with time. A first step;
And a second step of transmitting control data other than call communication data based on a user operation to a base station via a wireless link when a transition state is detected.

  According to the portable terminal, the position management server, the program, and the method of the present invention, the barometric pressure sensor built in the portable terminal is used to transmit and receive call communication data based on a user operation based on the change state of the barometric pressure value. The control data can be transmitted to the location management server at a timing that does not affect.

It is a system configuration figure of the present invention in a ski resort. It is explanatory drawing showing the relationship between the altitude and atmospheric | air pressure value in FIG. It is explanatory drawing showing the change of an atmospheric | air pressure value according to the movement accompanying a user's altitude change. It is a functional block diagram of the portable terminal in this invention. It is a function block diagram of the position management server in this invention. It is a graph showing the atmospheric | air pressure value according to time passage about the lift and course in a map.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a system configuration diagram of the present invention at a ski resort.

  According to FIG. 1, a ski slope is represented, and a lift on which a skier (user) rides and a course on which the user slides are provided. The user has a portable terminal 1 such as a cellular phone. In many cases, users who come to a ski resort in a group communicate with each other using a mobile phone or by telephone or e-mail to confirm each other's location.

  The mobile phone 1 is connected to a base station 3 connected to an access network (mobile phone network) by a wireless link. The access network is interconnected to the Internet. According to FIG. 1, a location management server 2 is connected to the Internet. The location management server 2 can determine the flow rate and the degree of congestion of the user of the entire ski resort by receiving control data from the mobile phone 1 possessed by the user.

  According to the present invention, the mobile phone 1 has a built-in atmospheric pressure sensor. Of course, an acceleration sensor, a geomagnetic sensor, or the like may be separately incorporated. The atmospheric pressure sensor outputs a voltage value based on the atmospheric pressure value according to the altitude of the mobile phone 1.

  Moreover, according to FIG. 1, the external measuring device 4 is installed in one or more places in the ski resort. Since the external measuring device 4 is installed, the altitude is a fixed value. Moreover, the external measuring device 4 has an atmospheric pressure sensor and measures an atmospheric pressure value at the altitude.

  FIG. 2 is an explanatory diagram showing the relationship between the altitude and the atmospheric pressure value in FIG.

  According to FIG. 2, the lower the altitude, the higher the atmospheric pressure. On the other hand, the higher the altitude, the lower the atmospheric pressure. However, the atmospheric pressure changes depending on the weather and the like. For this purpose, the external measuring device 4 associates the relationship between the altitude of the reference point and the atmospheric pressure. For example, even on a map, the same altitude is represented by contour lines. The higher the altitude change, the rougher the position on the map can be estimated by the atmospheric pressure.

  FIG. 3 is an explanatory diagram showing changes in the atmospheric pressure value in response to the movement of the user with a change in altitude.

  According to FIG. 3, the user gets on the lift A from a low altitude position, reaches the top, and slides on the course A from the top. FIG. 3 shows a change in the atmospheric pressure value detected by the atmospheric pressure sensor built in the mobile phone 1 with the passage of time. The atmospheric pressure sensor is measured every predetermined time unit (tm). By continuing to calculate the difference between the atmospheric pressure value at the current time t and the atmospheric pressure value at the previous time t-tm, it is possible to detect a change in atmospheric pressure over time. The predetermined time unit tm is arbitrarily set according to the system.

According to the present invention, the “stable state” and “fluctuating state” are detected based on the change in the atmospheric pressure value. These two states are associated with a “state determination code” as follows, for example.
“Stable state”: [State determination code 1]
A state in which the atmospheric pressure value does not change substantially with time. "Fluctuation state": [State determination code 2]
The pressure value is increasing or decreasing almost constant over time

Also, two transition states are detected based on changes in the atmospheric pressure value. These two states are associated with “transmission timing determination code” as follows, for example.
“First transition state”: [transmission timing determination code 1]
A state of transition from a stable state to a fluctuating state over time “second transition state”: [transmission timing determination code 2]
A state that has shifted from a variable state to a stable state over time

It is assumed that the portable terminal is carried by a user who rides on a lift and slides on a course at a ski resort. In such a case, the first transition state and the second transition state are expressed as follows.
“First transition state”: a state immediately after the lift ride at a low altitude position, or a state immediately after the start of a course run at a high altitude position.
“Second transition state”: a state immediately after getting off the lift at a high altitude position, or a state immediately after the course run ends at a low altitude position.

(S31) Waiting state before boarding at lift entrance (stable state)
There is no change in atmospheric pressure (altitude). Since the altitude at which the user is located is low, a certain time elapses while the atmospheric pressure value is high. During this time period, the user is likely to operate the mobile phone and talk to another person or send / receive data.

(S32) Immediately after getting on the lift (Stable state-> Fluctuating state)
The atmospheric pressure value is in a state (first transition state) in which the atmospheric pressure value transitions from the stable state to the fluctuation state over time. There is little possibility that the user will operate the mobile phone during this time.

(S33) During lift ride (fluctuating state)
The atmospheric pressure value is reduced at a constant rate with time, that is, the altitude is increased at a constant rate. During this time period, since the user is on the lift, there is a possibility of operating the mobile phone.

(S34) Immediately after getting off the lift (change state-> stable state)
The atmospheric pressure value is in a state (second transition state) in which the atmospheric pressure value transitions from the fluctuation state to the stable state as time elapses. There is little possibility that the user will operate the mobile phone during this time.

(S35) Waiting state before the run at the top of the course (stable state)
There is no change in atmospheric pressure (altitude). Since the altitude at which the user is located is high, a certain time elapses with a low atmospheric pressure value. During this time period, the user is likely to operate the mobile phone and talk to another person or send / receive data.

(S36) Immediately after the start of the run (Stable state-> Fluctuating state)
The atmospheric pressure value is in a state (first transition state) in which the atmospheric pressure value transitions from the stable state to the fluctuation state over time. There is little possibility that the user will operate the mobile phone during this time.

(S37) Running (fluctuating state)
The atmospheric pressure value increases at a constant rate with time, that is, the altitude decreases at a constant rate. During this time, the user may not have much possibility to operate the mobile phone.

(S38) Immediately after the run (fluctuating state-> stable state)
The atmospheric pressure value is in a state (second transition state) in which the atmospheric pressure value transitions from the fluctuation state to the stable state as time elapses. There is little possibility that the user will operate the mobile phone during this time.

(S39) Stopping (stable state)
The user is resting after the run. Therefore, there is no change in the atmospheric pressure value (altitude). Since the altitude at which the user is located is low, a certain time elapses while the atmospheric pressure value is high. During this time period, the user may operate the mobile phone and talk with another person or send / receive data.

  As shown in FIG. 3, on the ski slope, the timing at which the user operates the mobile terminal is limited to some extent. That is, the call communication data based on the user operation is not transmitted / received immediately after the lift ride (S32), immediately after the lift ride (S34), immediately after the start of the run (S36), and immediately after the end of the run (S38). Therefore, by transmitting the control data during this time period, it is possible to prevent the call communication data transmission / reception based on the user operation from being affected.

  FIG. 4 is a functional configuration diagram of the mobile terminal according to the present invention.

  According to FIG. 4, the mobile terminal 1 includes at least the atmospheric pressure sensor 100. In addition, the acceleration sensor 101 and the geomagnetic sensor 102 may be provided. The mobile terminal 1 includes a wireless communication interface unit 111 and a user interface unit 112. Furthermore, the mobile terminal 1 includes a user data transmission / reception unit 120, a transition state detection unit 121, and a control data transmission unit 122. These functional components are realized by executing a program that causes a computer mounted on the mobile terminal to function.

  The user data transmitting / receiving unit 120 communicates call communication data based on a user operation with the counterpart device via the wireless communication interface unit 111.

  The transition state detection unit 121 has a first transition state in which the atmospheric pressure value measured by the atmospheric pressure sensor transitions from the stable state to the fluctuation state with time and / or the first transition state from the fluctuation state to the stable state. 2 transition state is detected.

When the transition state is detected, the control data transmission unit 122 transmits control data other than the call communication data based on the user operation to a communicable base station via the wireless link. Examples of control data that the mobile terminal 1 transmits to the location management server 2 include the following data.
(1) Terminal ID (identifier)
(2) Time (3) Pressure value measured by the pressure sensor (4) Acceleration data measured by the acceleration sensor (5) Geomagnetic data measured by the geomagnetic sensor (6) Movement state determination code (7) Server communication timing Discrimination code

  After transmitting the control data, the control data transmission unit 122 deletes the data. The sensor information is collected and accumulated until the next transmission timing. Then, when the transmission timing is reached, the control data including the sensor information is transmitted to the position management server 2. The transmitted control data is not limited to sensor information, and may be data other than call communication data based on user operations.

  FIG. 5 is a functional configuration diagram of the location management server in the present invention.

  According to FIG. 5, the location management server 2 receives the atmospheric pressure value as control data from the mobile terminal 1. The position management server 2 includes a communication interface unit 20, a sensor information receiving unit 21, a sensor information storage unit 22, a reference position information receiving unit 23, an altitude table 24, a map information storage unit 25, and a current position estimation unit. 26 and a congestion degree estimation unit 27. The communication interface unit 20 communicates with the mobile terminal 1 and the external measurement device 4 via a network. These functional components other than the communication interface unit are realized by executing a program that causes a computer mounted on the location management server to function.

  The sensor information receiving unit 21 receives control data including an atmospheric pressure value from the mobile terminal 1 via the communication interface unit 20. According to FIG. 1, control data is received from the mobile terminal 1 immediately after the user gets on the lift (S 32), immediately after the lift gets off (S 34), immediately after the start of sliding (S 36), and immediately after the end of sliding (S 38). The atmospheric pressure value included in the control data is output to the sensor information storage unit 22. When the control data includes acceleration data, geomagnetic data, position information, and the like in addition to the atmospheric pressure value, the information is also output to the sensor information storage unit 22.

  The sensor information storage unit 22 stores the atmospheric pressure value in association with the identifier (ID) of the mobile terminal. It is also preferable to accumulate other sensor information.

  The reference position information receiving unit 23 receives reference position information from the external measurement device 4 via the communication interface unit 20. The reference position information is associated with the atmospheric pressure value and the altitude that serve as a reference for the altitude table. This reference position information is output to the altitude table 24.

  The altitude table 24 registers altitudes corresponding to a plurality of atmospheric pressure values. The altitude table 24 updates the relationship between the atmospheric pressure value and the altitude based on the reference position information.

  The map information storage unit 25 stores map information. This map information includes an altitude such as a contour line. For example, according to FIG. 1, the map information accumulating unit 25 changes the atmospheric pressure value according to the altitude at the lift boarding entrance, the lift exit entrance, the course run start entrance and / or the course run end exit, and the elapsed time at the lift ( (Inclination) and / or changes in atmospheric pressure values according to the elapsed time in the course.

  The current position estimation unit 26 derives an altitude from the atmospheric pressure value using the altitude table 24, and estimates the current position by associating the altitude with map information.

  FIG. 6 is a graph showing barometric pressure values over time for lifts and courses in the map.

  The graph of FIG. 6 represents the change (inclination) of the atmospheric pressure value with respect to time for the lift and the course. From this graph, it is possible to estimate which lift and course are located based on at least the change in the atmospheric pressure value. Therefore, it is not necessary to perform positioning based on radio waves from GPS satellites, which require a large amount of power consumption for the mobile terminal.

According to the graph of FIG. 6, the following information is associated with each lift and course.
(1) Lift or course identifier (ID)
(2) Start point altitude: low altitude on the lift or high altitude at the start of sliding (3) End point altitude: high altitude down from the lift or low altitude at the end of the run (4) Pressure change: air pressure at time intervals tm Value (5) Ride time: Lift ride time or run time

  The current position estimation unit 26 can derive the altitude from the atmospheric pressure value, but cannot estimate the position directly from the altitude. If there is only one lift entrance (or exit) or one course start point (or end point), the lift or course can be identified. On the other hand, when there are a plurality of lift entrances or a plurality of course sliding start locations at that altitude, it is not possible to directly select which lift or course.

  According to the present invention, the mobile terminal 1 transmits the control data including the atmospheric pressure value to the position management server 2 every predetermined time unit. Therefore, the location management server 2 can calculate the difference between the atmospheric pressure value at time t and the atmospheric pressure value at the previous time t-tm. If it does so, the change of the atmospheric | air pressure value in elapsed time (t-tm), ie, inclination, can be derived | led-out. This inclination and the graph of FIG. 5 can be compared, and the lift or course with the closest inclination can be selected.

  The estimation of the current position of the lift or the course based on the inclination can be executed twice immediately after the lift ride (S32) and immediately after the lift exit (S34). Therefore, even if the current position is erroneously estimated immediately after getting on the lift, the position estimate can be corrected immediately after getting off the lift. Similarly, it can be executed twice immediately after the start of the run (S36) and immediately after the end of the run.

  As another embodiment, it is also preferable to estimate the current position by further using the lift and the azimuth angle of the course. The lift and the azimuth angle of the course are registered in advance in the map information. The azimuth angle is the angle of a line connecting the starting point and the ending point of the lift or course with respect to the reference azimuth. When the azimuth angle is further used, the control data further includes geomagnetic data (or acceleration data). For example, according to the technique described in Patent Document 2, the azimuth angle can be estimated from the orientation of the mobile terminal using an acceleration sensor and a geomagnetic sensor. And the portable terminal 1 transmits the control data containing the azimuth to the position management server 2 for every predetermined time unit. The position management server 2 calculates the difference between the azimuth angle at the time t and the azimuth angle at the previous time t-tm, compares it with the azimuth angle of the lift or course using the map information, and determines the current position. It can also be estimated.

  The congestion degree estimation unit 27 derives the congestion degree corresponding to the predetermined position range based on the current positions of a large number of mobile terminals estimated by the current position estimation unit 26. According to the present invention, since it is possible to manage the lift boarding timing, lift boarding timing, sliding start timing, and sliding end timing of each terminal, the number of people waiting for the lift, the number of people waiting for the lift, the number of people waiting for the course, You can estimate the number of runners.

  According to the present invention, the number of people waiting for the lift and the number of people waiting for the course cannot be estimated in real time because no control data is transmitted at that time. However, the number of people on the lift and the number of people on the course are correlated with the number of people waiting on the lift and the number of people waiting on the course. That is, the number of passengers on the past lift and the number of people waiting to run on the current course are almost the same.

  Then, the congestion level estimation unit 27 can transmit the estimated congestion level on the map to the mobile terminal 1. The mobile terminal 1 displays the degree of congestion on the map. Thereby, the user who operates the portable terminal 1 can know which place on the map is congested.

  As described above in detail, according to the mobile terminal, the position management server, the program, and the method of the present invention, the user can use the barometric sensor built in the mobile terminal, based on the change state of the barometric pressure value. The control data can be transmitted to the location management server at a timing that does not affect the transmission / reception of the call communication data based on the operation. The position management server can estimate the position of the mobile terminal by receiving control data including the atmospheric pressure value from a large number of mobile terminals. As a result, the degree of congestion on the map can also be estimated.

  Various changes, modifications, and omissions of the above-described various embodiments of the present invention can be easily made by those skilled in the art. The above description is merely an example, and is not intended to be restrictive. The invention is limited only as defined in the following claims and the equivalents thereto.

DESCRIPTION OF SYMBOLS 1 Mobile terminal, mobile phone 100 Barometric pressure sensor 101 Acceleration sensor 102 Geomagnetic sensor 111 Wireless communication interface unit 112 User interface unit 120 User data transmission / reception unit 121 Transition state detection unit 122 Control data transmission unit 2 Location management server 20 Communication interface unit 21 Sensor information Receiving unit 22 Sensor information accumulating unit 23 Reference position information receiving unit 24 Altitude table 25 Map information accumulating unit 26 Current position estimating unit 27 Congestion degree estimating unit 3 Base station 4 External measuring device

Claims (13)

A portable terminal with a built-in barometric sensor,
The barometric pressure value measured by the barometric sensor detects a first transition state in which the stable state shifts to the fluctuation state and / or a second transition state in which the transition from the fluctuation state to the stable state occurs with time. Transition state detecting means for
A mobile terminal comprising: control data transmission means for transmitting control data other than call communication data based on a user operation to a base station via a wireless link when the transition state is detected. About the transition state detection means,
The stable state is a state in which the atmospheric pressure value does not change substantially constant over time,
2. The mobile terminal according to claim 1, wherein the fluctuation state is a state in which the atmospheric pressure value is increased or decreased substantially constant over time.   The portable terminal according to claim 1 or 2, wherein the control data transmission unit transmits the atmospheric pressure value as the control data.   The mobile terminal according to claim 3, wherein the control data transmitting unit transmits the control data including the atmospheric pressure value a plurality of times for each predetermined time unit after detecting the transition state.   The control data transmission means further includes acceleration data based on an acceleration sensor, geomagnetic data based on a geomagnetic sensor, and / or control data for call communication, in the control data. The portable terminal described. The mobile device is carried by a user who rides on a lift and skis on a course at a ski resort,
About the transition state detection means,
The first transition state represents a state immediately after the lift ride at a low altitude position, or a state immediately after the start of the course run at a high altitude position,
The second transition state represents a state immediately after getting off the lift at a high altitude position, or a state immediately after completion of the course run at a low altitude position, according to any one of claims 1 to 5. Mobile devices. A position management server that receives the atmospheric pressure value as the control data from the mobile terminal according to any one of claims 3 to 6,
Altitude table with altitude registered for each barometric pressure value,
Reference position information receiving means for receiving, from an external measurement device, reference position information that associates the atmospheric pressure value and altitude serving as a reference of the altitude table;
Map information storage means for storing map information;
A position management server, comprising: a current position estimating means for deriving an altitude from the atmospheric pressure value using the altitude table and estimating the current position by associating the altitude with the map information.   The position according to claim 7, further comprising: a congestion degree estimation means for deriving a congestion degree according to a predetermined position range based on current positions of a large number of mobile terminals estimated by the current position estimation means. Management server. The external measurement device capable of communicating with the location management server according to claim 7 or 8,
The external measuring device is installed at any location where the mobile terminal possessed by the user exists,
An atmospheric pressure sensor;
An external measurement apparatus comprising: a transmission unit configured to transmit the atmospheric pressure value detected by the atmospheric pressure sensor and reference position information including fixed altitude data at the installation position to the position management server. A system having the mobile terminal according to claim 6 and the location management server according to claim 7 or 8,
The map information accumulating means is configured to change the altitude at the lift boarding entrance, lift exit, exit from the course and / or end of course, and change (inclination) of the atmospheric pressure according to the elapsed time at the lift and / or the course. Accumulate changes in atmospheric pressure with time,
When the current position estimation means receives the atmospheric pressure value a plurality of times when the portable terminal is in the transition state, the difference between the atmospheric pressure value at the time t and the atmospheric pressure value at the previous time t-tm From the above, the change in the atmospheric pressure value according to the elapsed time is calculated, the change in the atmospheric pressure value of the lift and the course in the map information closest to the change in the atmospheric pressure value is detected, and it is estimated that the current position is on the lift or course. A system characterized by that. A program for operating a computer mounted on a portable terminal having a built-in barometric sensor,
The barometric pressure value measured by the barometric sensor detects a first transition state in which the stable state shifts to the fluctuation state and / or a second transition state in which the transition from the fluctuation state to the stable state occurs with time. Transition state detecting means for
When the transition state is detected, a computer is caused to function as control data transmission means for transmitting control data other than call communication data based on a user operation to a base station via a wireless link. program. A program for causing a computer mounted on a position management server that receives the atmospheric pressure value as the control data from the portable terminal according to any one of claims 3 to 6,
Altitude table with altitude registered for each barometric pressure value,
Reference position information receiving means for receiving, from an external measurement device, reference position information that associates the atmospheric pressure value and altitude serving as a reference of the altitude table;
Map information storage means for storing map information;
A program for a position management server, wherein a computer functions as current position estimating means for deriving an altitude from the atmospheric pressure value using the altitude table and associating the altitude with the map information to estimate a current position. . In a control data transmission method using a portable terminal with a built-in barometric sensor,
The barometric pressure value measured by the barometric sensor detects a first transition state in which the stable state shifts to the fluctuation state and / or a second transition state in which the transition from the fluctuation state to the stable state occurs with time. A first step to:
A control data transmission method comprising: a second step of transmitting control data other than call communication data based on a user operation to a base station via a wireless link when the transition state is detected.

Images