JP2019135817A - Information processing device and program - Google Patents

Abstract

To acquire position information on a communication terminal independently of implementation and setting and the like of the communication terminal.SOLUTION: An information processing device 100 comprises: a first information acquisition unit 106 that acquires first information including a reception level of an electric wave from a wireless base station by a wireless communication terminal at an arbitrary place, and position information indicating a position of the place measured by the wireless communication terminal by using a first position measurement method and a second position measurement method; a second information acquisition unit 110 that acquires second information including the reception level of the electric wave from the wireless base station by the wireless communication terminal at the arbitrary place, and position information indicating a position of the place measured by the wireless communication terminal by using the first position measurement method; an information selection unit 112 that selects a plurality of pieces of second information on the basis of a plurality of pieces of first information; and a model generation unit 114 that generates a first position estimation model on the basis of the plurality of pieces of first information and generates a second position estimation model on the basis of the plurality of pieces of second information selected by the information selection unit.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an information processing apparatus and a program.

GPS (Global Positioning System), LCS (Location Service), and the like have been known as techniques for acquiring communication terminal position information (see, for example, Patent Document 1).
[Prior art documents]
[Patent Literature]
[Patent Document 1] JP 2012-226526 A

  Since positioning by GPS or LCS depends on the implementation and setting of the communication terminal, the position information may not be acquired. It is desirable to be able to provide a technology that can acquire the location information of the communication terminal without depending on the implementation and setting of the communication terminal.

  According to the first aspect of the present invention, an information processing apparatus is provided. The information processing apparatus is configured to receive a radio wave reception level from a radio base station by a radio communication terminal at an arbitrary point and the point measured by the radio communication terminal using the first position measurement method and the second position measurement method. You may provide the 1st information acquisition part which acquires the 1st information containing the positional information which shows a position. The information processing apparatus includes a reception level of radio waves from the wireless base station by the wireless communication terminal at an arbitrary point, and position information indicating the position of the point measured by the wireless communication terminal using the first position measurement method. You may provide the 2nd information acquisition part which acquires the 2nd information containing. The information processing apparatus may include an information sorting unit that sorts the plurality of second information acquired by the second information acquisition unit based on the plurality of first information. The information processing device generates a first position estimation model that estimates the position of the wireless communication terminal from the reception level of the wireless communication terminal based on the plurality of first information, and the plurality of information selected by the information selection unit You may provide the model production | generation part which produces | generates the 2nd position estimation model which estimates the position of a radio | wireless communication terminal from the reception level of a radio | wireless communication terminal based on 2nd information.

  The model generation unit may generate the second position estimation model based on the plurality of second information selected by the information selection unit and the plurality of first information. The first information may further include reception quality of radio waves from the radio base station by the radio communication terminal, and a cell ID for identifying a cell of the radio base station in which the radio communication terminal is located, The second information may further include reception quality of radio waves from the radio base station by the radio communication terminal and a cell ID for identifying a cell of the radio base station in which the radio communication terminal is located. The selection unit is acquired by the second information acquisition unit based on the reception level, reception quality, and cell ID of the first information and the second information, and the position information of the first information and the second information. A plurality of the second information may be selected. The information selection unit identifies the second information similar to the first information based on the reception level, reception quality, and cell ID of the first information and the second information, and the position information of the first information and The plurality of pieces of second information may be selected by selecting the second information having a distance derived from position information of the second information similar to the first information that is smaller than a predetermined threshold. The information selection unit may select a plurality of the second information acquired by the second information acquisition unit based on the first position estimation model. The information selection unit has a predetermined difference between the position estimated from the reception level included in the second information using the first position estimation model and the position indicated by the position information included in the second information. The plurality of second information may be selected by selecting the second information that is smaller than the threshold value.

  The first information may further include reliability of the position information, and the first information acquisition unit includes a plurality of the first information selected based on the reliability among the plurality of first information. You may get. The first information may further include a moving speed of the wireless communication terminal, and the first information acquisition unit includes a plurality of the first information selected based on the moving speed among the plurality of first information. Information may be obtained. The first information acquisition unit may acquire a plurality of the first information whose moving speed is slower than a predetermined threshold among the plurality of first information. The first information acquisition unit may acquire the first information for each target range of position estimation, and the second information acquisition unit may acquire the second information for each target range of position estimation, The model generation unit generates the first position estimation model based on a plurality of the first information for a target range in which the number of the first information is greater than a threshold associated with the target range. Well, for the target range in which the number of the first information is less than the threshold value associated with the target range and the number of the second information is greater than the threshold value associated with the target range, the information selection unit The second position estimation model may be generated based on a plurality of the second information selected by the above.

  The first information acquisition unit includes a reception level of radio waves from the radio base station by the radio communication terminal when the first base station parameter is set for the radio base station and the position information. Reception level of radio waves from the radio base station by the radio communication terminal when first information and a second base station parameter different from the first base station parameter is set for the radio base station And the first information including the position information may be acquired, and the second information acquisition unit is provided by the wireless communication terminal when a first base station parameter is set for the wireless base station. The second information including the reception level of the radio wave from the radio base station and the position information, and the radio communication terminal when the second base station parameter is set for the radio base station. The second information including the reception level of the radio wave from the radio base station and the position information may be acquired, and the information selection unit sets the first base station parameter for the radio base station. Based on the plurality of first information when the first base station parameter is set for the radio base station, the plurality of second information when the first base station parameter is set is selected, and the radio base station On the other hand, based on a plurality of the first information when the second base station parameter is set, a plurality of the above when the second base station parameter is set for the radio base station The second information may be selected, and the model generation unit is selected by the plurality of first information and the information selection unit when the first base station parameter is set for the radio base station. The above radio base Generating a position estimation model corresponding to the first base station parameter based on a plurality of the second information when the first base station parameter is set, and for the radio base station When the second base station parameter is set for a plurality of the first information when the second base station parameter is set and the radio base station selected by the information selection unit A position estimation model corresponding to the second base station parameter may be generated based on the plurality of second information. The base station parameter may include at least one of transmission power, tilt angle, and bandwidth by the radio base station, and the first base station parameter and the second base station parameter include transmission power, At least one of the tilt angle and the bandwidth may be different. In response to the number of the second information acquired by the second information acquisition unit being greater than a predetermined threshold when the base station parameter of the radio base station is changed, the model generation unit The second position estimation model is generated based on the plurality of second information, and the number of the first information acquired by the first information acquisition unit is greater than a predetermined threshold. The first position estimation model may be generated based on the plurality of first information. The threshold value to be compared with the number of the second information may be different from the threshold value to be compared with the number of the first information. The information processing apparatus uses the reception level acquisition unit that acquires the reception level of radio waves from a radio base station by a radio communication terminal, and the reception level acquisition unit using the first position estimation model or the second position estimation model. A position estimation unit that estimates the position of the wireless communication terminal from the received level acquired when the base information parameter of the wireless base station is changed. The position of the wireless communication terminal is estimated using the second position estimation model when the number of the second information acquired by the acquisition unit exceeds a predetermined threshold, and the first information acquisition The position of the wireless communication terminal may be estimated using the first position estimation model in response to the number of the first information acquired by the unit being greater than a predetermined threshold. The position estimation unit is configured such that the number of the second information acquired by the second information acquisition unit is greater than the predetermined threshold, and the number of the first information acquired by the first information acquisition unit is When the number is larger than a predetermined threshold, the position of the wireless communication terminal may be specified using the first position estimation model. When the base station parameter of the radio base station is changed, the position estimation unit is configured such that the number of the second information acquired by the second information acquisition unit is less than the predetermined threshold, and When the number of the first information acquired by one information acquisition unit is less than the predetermined threshold, the position estimation of the wireless communication terminal using the first position estimation model and the second position estimation model are used. It is not necessary to estimate the position of the wireless communication terminal.

  The information processing apparatus uses a reception level acquisition unit that acquires a reception level of radio waves from a wireless base station by a wireless communication terminal, and a reception level acquired by the reception level acquisition unit using the first position estimation model, A position estimation unit that estimates the position of the wireless communication terminal. The reception level acquisition unit may acquire the reception level transmitted by the radio base station. Accessing the base station database that stores the base station identification information for identifying the radio base station and the base station position information indicating the position of the radio base station in association with each other, the base station identification information received from the radio communication terminal A base station position information acquisition unit that acquires corresponding base station position information may be provided, and the position estimation unit may estimate the position of the wireless communication terminal further based on the base station position information. The information processing apparatus may include a distance acquisition unit that acquires a distance between the radio communication terminal and the radio base station transmitted by the radio base station, and the position estimation unit includes: The position of the wireless communication terminal may be estimated further based on the acquired distance. The information processing apparatus may include a movement speed acquisition unit that acquires a movement speed of the wireless communication terminal transmitted by the wireless base station, and the position estimation unit further includes the wireless communication based on the movement speed. The position of the terminal may be estimated. The information processing apparatus may include a map information acquisition unit that acquires map information, and the position estimation unit may estimate the position of the wireless communication terminal further based on the map information. The first position measurement method may be a position measurement method using GPS, and the second position measurement method may be a position measurement method using WiFi.

  According to the second aspect of the present invention, a program for causing a computer to function as the information processing apparatus is provided.

  It should be noted that the above summary of the invention does not enumerate all the necessary features of the present invention. In addition, a sub-combination of these feature groups can also be an invention.

An example of the communication environment of the information processing apparatus 100 is schematically shown. An example of functional composition of information processor 100 is shown roughly. An example of the model management table 140 is shown schematically. An example of the flow of processing by information processor 100 is shown roughly. It is explanatory drawing for demonstrating the selection process by the information selection part 112. FIG. An example of the flow of processing by information processor 100 is shown roughly. An example of the flow of processing by information processor 100 is shown roughly. It is explanatory drawing explaining an example of the timing which produces | generates a position estimation model. 1 schematically shows an exemplary hardware configuration of a computer 1000 that functions as an information processing apparatus 100.

  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. In addition, not all the combinations of features described in the embodiments are essential for the solving means of the invention.

  FIG. 1 schematically illustrates an example of a communication environment of the information processing apparatus 100. The information processing apparatus 100 communicates with the position information collection apparatus 20 via 10. The information processing apparatus 100 communicates with the position information collection apparatus 30 via the network 10. The information processing apparatus 100 communicates with the radio base station 500 via the network 10. The network 10 includes, for example, a mobile phone network and the Internet.

  The position information collection device 20 collects various information from the wireless communication terminal 620 via the network 10. The wireless communication terminal 620 is a terminal that can measure the position of the wireless communication terminal 620 by a position measurement technique that combines two different position measurement techniques. The wireless communication terminal 620 is a terminal capable of measuring the position of the wireless communication terminal 620 by using, for example, a position measurement method using GPS and a position measurement method using WiFi (registered trademark) (Wireless Fidelity). The position measurement method using GPS may be an example of a first position measurement method. The position measurement method using WiFi may be an example of a second position measurement method.

  The radio communication terminal 620 may measure the reception level of radio waves from the radio base station 500 and the position of the radio communication terminal 620 at a plurality of points. The wireless communication terminal 620 may measure these in a stationary state or may measure them while moving. The measurement by the wireless communication terminal 620 is executed by an application installed in the wireless communication terminal 620, for example. The application performs, for example, measurement in the background while executing the main function.

  The wireless communication terminal 620 may transmit measurement information including position information indicating the measured reception level and the measured position to the position information collection device 20. The measurement information may include the reception quality of radio waves from the radio base station 500. Further, the measurement information may include a cell ID that identifies the cell 510 of the radio base station 500. The wireless communication terminal 620 may transmit measurement information to the position information collection device 20 for each measurement. In addition, the wireless communication terminal 620 may store the measurement information and collectively transmit the measurement information to the position information collection device 20 at an arbitrary timing. For example, the wireless communication terminal 620 periodically transmits measurement information to the position information collection device 20. For example, the wireless communication terminal 620 transmits measurement information to the position information collection device 20 in response to receiving an instruction from the position information collection device 20.

  The location information collection device 30 collects various information from the wireless communication terminal 630 via the network 10. The wireless communication terminal 630 is a terminal that can measure the position of the wireless communication terminal 620 by one position measurement method. The wireless communication terminal 620 is a terminal that can measure the position of the wireless communication terminal 630 using, for example, a position measurement method using GPS.

  The radio communication terminal 630 may measure the reception level of radio waves from the radio base station 500 and the position of the radio communication terminal 630 at a plurality of points. The wireless communication terminal 630 may measure these while standing still, or may measure them while moving. The wireless communication terminal 630 estimates the position of the wireless communication terminal 630 by, for example, MDT (Minimization of Drive Test).

  The wireless communication terminal 630 may transmit measurement information including position information indicating the measured reception level and the measured position to the position information collection device 30. The measurement information may include the reception quality of radio waves from the radio base station 500. Further, the measurement information may include a cell ID that identifies the cell 510 of the radio base station 500. The wireless communication terminal 630 may transmit measurement information to the position information collection device 30 for each measurement. Further, the wireless communication terminal 630 may store the measurement information and collectively transmit the measurement information to the position information collection device 30 at an arbitrary timing. For example, the wireless communication terminal 630 periodically transmits measurement information to the position information collection device 30. For example, the wireless communication terminal 630 transmits measurement information to the position information collection device 30 in response to receiving an instruction from the position information collection device 30.

  The wireless communication terminal 640 is a terminal that does not have a function of transmitting position information to the position information collection device 20 and the position information collection device 30. The wireless communication terminal 640 may be a terminal that does not have a function of estimating the position of the wireless communication terminal 640. Further, the wireless communication terminal 640 has a function of estimating the position of the wireless communication terminal 640, but does not have a function of transmitting position information indicating the position to the position information collection device 20 and the position information collection device 30. It may be a terminal. The wireless communication terminal 640 is, for example, a terminal in which an application that can execute position measurement installed in the wireless communication terminal 620 is not installed. The wireless communication terminal 640 is a terminal that does not support MDT, for example.

  The wireless communication terminal 620, the wireless communication terminal 630, and the wireless communication terminal 640 are, for example, mobile phones such as smartphones. The wireless communication terminal 620, the wireless communication terminal 630, and the wireless communication terminal 640 may be a tablet terminal, a notebook PC (Personal Computer), or the like. When the wireless communication terminal 620, the wireless communication terminal 630, and the wireless communication terminal 630 are not distinguished, they may be described as the wireless communication terminal 600. The radio base station 500 and the radio communication terminal 600 may conform to any of the 3G communication method, the LTE (Long Term Evolution) communication method, the 4G communication method, the 5G communication method, and the communication method after the 5G communication method.

  In the information processing apparatus 100 according to this embodiment, the position information collection device 20 collects measurement information (may be referred to as measurement information 22) collected from a plurality of wireless communication terminals 620, and the position information collection device 30 includes a plurality of position information collection devices 30. Measurement information (may be described as measurement information 32) collected from the wireless communication terminal 630 is acquired, and based on these, wireless communication is performed from the reception level of radio waves from the wireless base station 500 by the wireless communication terminal 600. A position estimation model for estimating the position of the terminal 600 is generated.

  The information processing apparatus 100 collects position information for the target range, the threshold value set for each target range for position estimation, the number of measurement information 22 collected by the position information collection device 20 for the target range, and the target range. The position estimation model may be generated using measurement information determined based on the number of measurement information 32 collected by the device 30. The target range for position estimation may be, for example, 500 radio base stations. That is, the target range for position estimation may be a range covered by the radio base station 500. The information processing apparatus 100 may store a threshold set for each target range for position estimation.

  When both the number of measurement information 22 and the number of measurement information 32 are greater than a threshold for a certain target range, the information processing apparatus 100 may generate a position estimation model for the target range using the measurement information 22. The information processing apparatus 100 generates a position estimation model for the target range using the measurement information 22 even when the number of the measurement information 22 is larger than the threshold and the number of the measurement information 32 is smaller than the threshold. Good.

  The information processing apparatus 100 may generate a position estimation model for the target range using the measurement information 32 when the number of the measurement information 22 is smaller than the threshold and the number of the measurement information 32 is larger than the threshold for a certain target range. . When both the number of measurement information 22 and the number of measurement information 32 are less than the threshold for a certain target range, the information processing apparatus 100 does not generate a position estimation model, and does not generate a position estimation model for the target range. Instead of performing the position estimation used, it may be determined to perform position estimation using a conventional method such as triangulation.

  When generating the position estimation model using the measurement information 32, the information processing apparatus 100 may select the measurement information 32 using the measurement information 22. For example, the information processing apparatus 100 first resembles the measurement information 22 based on the reception level, reception quality, and cell ID included in the measurement information 22, and the reception level, reception quality, and cell ID included in the measurement information 32. The measurement information 32 to be specified is specified. Next, the information processing apparatus 100 excludes the measurement information 32 in which the distance derived from the position information included in the measurement information 22 and the position information included in the measurement information 32 similar to the measurement information 22 is greater than a predetermined threshold. Then, the measurement information 22 smaller than the threshold value is selected. Further, the information processing apparatus 100 may select measurement information 32 that is not similar to any measurement information 22. The information processing apparatus 100 may generate a position estimation model using the measurement information 32 selected in this way.

  Further, the information processing apparatus 100 may select the measurement information 32 using the position estimation model generated using the measurement information 22. For example, the information processing apparatus 100 first generates a position estimation model (may be described as a selection position estimation model) using the measurement information acquired from the position information collection apparatus 20. Next, the information processing apparatus 100 includes the position estimated from the reception level included in the measurement information using the selection position estimation model among the measurement information acquired from the position information collection apparatus 30, and the position information included in the measurement information. A plurality of pieces of measurement information are selected by selecting measurement information whose difference from the position indicated by is smaller than a predetermined threshold. Then, the information processing apparatus 100 generates a position estimation model based on the measurement information acquired from the position information collection apparatus 20 and the selected measurement information.

  The accuracy of position estimation by the wireless communication terminal 620 is higher than the accuracy of position estimation by the wireless communication terminal 630 in principle because a position estimation method combining two position estimation methods is used. However, the number of wireless communication terminals 620 tends to be significantly smaller than the number of wireless communication terminals 630. In addition, in the wireless communication terminal 620, for example, there is a tendency that the position estimation is not frequently performed due to the nature of performing the position estimation in the background of the application. For example, the wireless communication terminal 620 is performed at a frequency of about once every 30 minutes. There are many. The wireless communication terminal 630 tends to perform position estimation more frequently than the wireless communication terminal 620. For example, the wireless communication terminal 630 is often executed at a frequency of about once per minute.

  When the position estimation model is generated using the measurement information acquired from the position information collection device 20, the position estimation accuracy is higher than when the position estimation model is generated using the measurement information acquired from the position information collection device 30. Although a high position estimation model can be generated, the real-time property may become insufficient because the number of measurement information that can be acquired is small. On the other hand, when the position estimation model is generated using the measurement information acquired from the position information collection device 30, the real time property is compared with the case where the position estimation model is generated using the measurement information acquired from the position information collection device 20. May be a position estimation model with high but low position estimation accuracy.

  On the other hand, according to the information processing apparatus 100 according to the present embodiment, a threshold is provided for each position estimation target range, and when the number of measurement information 22 is greater than the threshold, a position estimation model using the measurement information 22 is provided. Generated. Thereby, when the number of the measurement information 22 is sufficient, a position estimation model with high position estimation accuracy using the measurement information 22 can be provided. If the number of measurement information 22 is less than the threshold and the number of measurement information 32 is greater than the threshold, a position estimation model using the measurement information 32 selected by the measurement information 22 is generated. Thereby, even if the number of measurement information 22 is insufficient, it is possible to provide a position estimation model that can realize relatively high position estimation accuracy and real-time performance.

  The information processing apparatus 100 may estimate the position of the wireless communication terminal 600 from the reception level of radio waves from the wireless base station 500 by the wireless communication terminal 600 using the generated position estimation model. By using the position estimation model, the information processing apparatus 100 can estimate the position of the wireless communication terminal 640 that does not have a function of transmitting the position information to the position information collecting apparatus 20 and the position information collecting apparatus 30. it can. Thereby, the position of many radio | wireless communication terminals 600 can be estimated. The information processing apparatus 100 can specify the location (so-called hot spot) where the wireless communication terminals 600 are concentrated, for example, by estimating the positions of many wireless communication terminals 600.

  For example, the information processing apparatus 100 first acquires information on reception levels of a plurality of wireless communication terminals 600 from the wireless base station 500. The radio base station 500 acquires the reception level of the radio communication terminal 600 by transmitting, for example, an instruction to feed back the radio wave reception level information from the radio base station 500 to the radio communication terminal 600. It transmits to the information processing apparatus 100. Also, the radio base station 500, for example, from the transmission power information of the radio communication terminal 600 and the radio wave reception level by the radio base station 500 from the radio communication terminal 600, from the radio base station 500 by the radio communication terminal 600. The reception level of the radio wave is calculated and transmitted to the information processing apparatus 100.

  FIG. 2 schematically illustrates an example of a functional configuration of the information processing apparatus 100. The information processing apparatus 100 includes an information collection unit 102, an information selection unit 104, an information acquisition unit 106, a model generation unit 108, an information acquisition unit 110, an information selection unit 112, a model generation unit 114, a model storage unit 116, and a base station reception unit. 120, a base station location information acquisition unit 129, a location estimation unit 130, and a map information acquisition unit 132. It is not always essential that the information processing apparatus 100 has all these configurations.

  The information collection unit 102 collects measurement information measured by the wireless communication terminal 620. The measurement information includes a reception level of radio waves from the radio base station 500 by the radio communication terminal 620, and position information indicating a position estimated using a position estimation method using GPS and a position estimation method using WiFi. Including. The measurement information may include radio wave reception quality from the radio base station 500 by the radio communication terminal 620. The measurement information may include a cell ID that identifies the cell 510 of the radio base station 500.

  The measurement information may further include the reliability of the position information. As a specific example, the position information and the reliability may be output by the Google Places API. The measurement information may further include the moving speed of the wireless communication terminal 620. As a specific example, the moving speed may be output by an OS (Operating System) of the wireless communication terminal 620. The information collection unit 102 may receive measurement information from the position information collection device 20. The information collection unit 102 may receive measurement information from the wireless communication terminal 620.

  The information selection unit 104 selects measurement information that satisfies a predetermined condition from the measurement information collected by the information collection unit 102. For example, the information selection unit 104 selects measurement information based on the reliability included in the measurement information. As a specific example, the information selection unit 104 selects measurement information whose reliability is higher than a predetermined threshold. The threshold value may be arbitrarily set. The high reliability may mean that the position accuracy indicated by the position information is high. Further, high reliability may mean that the position error indicated by the position information is small.

  For example, the information selection unit 104 selects measurement information based on the moving speed included in the measurement information. As a specific example, the information selection unit 104 selects measurement information whose moving speed is slower than a predetermined threshold. For example, the information selection unit 104 selects measurement information whose moving speed can be regarded as a stop because the wireless communication terminal 620 is not moving. The threshold value may be arbitrarily set.

  The information acquisition unit 106 acquires the measurement information selected by the information selection unit 104. The information acquisition unit 106 may be an example of a first information acquisition unit.

  The model generation unit 108 generates a position estimation model based on the measurement information acquired by the information acquisition unit 106. Generating the position estimation model may include updating the position estimation model. The model generation unit 108 may generate the position estimation model using any learning method. The model generation unit 108 may generate a position estimation model by machine learning. For example, the model generation unit 108 generates a position estimation model using a neural network. The model generation unit 108 may generate a position estimation model by deep learning. The position estimation model may be an example of a first position estimation model.

  The information acquisition unit 110 acquires measurement information measured by the wireless communication terminal 630. The measurement information includes a reception level of radio waves from the radio base station 500 by the radio communication terminal 630 and position information indicating a position estimated using a position estimation method using GPS. The measurement information may include radio wave reception quality from the radio base station 500 by the radio communication terminal 630. The measurement information may include a cell ID that identifies the cell 510 of the radio base station 500. The information acquisition unit 110 may receive measurement information from the position information collection device 30. The information acquisition unit 110 may receive measurement information from the wireless communication terminal 630. The information acquisition unit 110 may be an example of a second information acquisition unit.

  The information sorting unit 112 sorts the measurement information acquired by the information acquisition unit 110 based on the measurement information acquired by the information acquisition unit 106. The information selection unit 112 first receives the reception level, reception quality, and cell ID included in the measurement information acquired by the information acquisition unit 106, and the reception level, reception quality, and cell ID included in the measurement information acquired by the information acquisition unit 110. Based on the above, measurement information similar to the measurement information acquired by the information acquisition unit 106 among the measurement information acquired by the information acquisition unit 110 is specified. Next, the information selection unit 112 determines a threshold derived from the specified measurement information based on the distance derived from the position information included in the specified measurement information and the position information included in the measurement information acquired by the information acquisition unit 106. Larger measurement information is excluded and measurement information smaller than the threshold is selected. The information selection unit 112 may also select measurement information acquired by the information acquisition unit 110 that is not similar to any of the measurement information acquired by the information acquisition unit 106.

  The information selection unit 112 may select the measurement information acquired by the information acquisition unit 110 based on the position estimation model generated by the model generation unit 108. For example, the information selection unit 112 uses the position estimation model generated by the model generation unit 108 to estimate the position estimated from the reception level in the measurement information acquired by the information acquisition unit 110 and the position indicated by the position information included in the measurement information. The measurement information is selected by selecting measurement information whose difference is smaller than a predetermined threshold value. The threshold value may be arbitrarily set, for example, 100 m.

  The model generation unit 114 generates a position estimation model based on the measurement information selected by the information selection unit 112. The model generation unit 114 may generate a position estimation model based on the measurement information acquired by the information acquisition unit 106 and the measurement information selected by the information selection unit 112. Generating the position estimation model may include updating the position estimation model. The model generation unit 114 may generate the position estimation model using any learning method. The model generation unit 114 may generate a position estimation model by machine learning. For example, the model generation unit 114 generates a position estimation model using a neural network. The model generation unit 114 may generate a position estimation model by deep learning. The position estimation model generated by the model generation unit 114 may be an example of a second position estimation model.

  The model storage unit 116 stores the position estimation model generated by the model generation unit 108 and the position estimation model generated by the model generation unit 114. The model storage unit 116 may store a position estimation model for each target range for position estimation. For example, when the number of measurement information collected by the information collection unit 102 or the number of measurement information acquired by the information acquisition unit 106 is greater than a threshold corresponding to the target range, the model storage unit 116 has, for each of a plurality of target ranges. The position estimation model generated by the model generation unit 108 is stored. In addition, the model storage unit 116 has the number of measurement information collected by the information collection unit 102 or the number of measurement information acquired by the information acquisition unit 106 smaller than the threshold corresponding to the target range, and the measurement acquired by the information acquisition unit 110. When the number of information is larger than the threshold corresponding to the target range, the position estimation model generated by the model generation unit 114 may be stored.

  The base station receiving unit 120 receives various information from the radio base station 500. The information includes the reception level of radio waves from the radio base station 500 by the radio communication terminal 600. The information may include identification information of the radio base station 500. The information may include the distance between the radio base station 500 and the radio communication terminal 600. The radio base station 500 may include the distance between the radio base station 500 and the radio communication terminal 600 derived using an arbitrary method in the information. The information may include the moving speed of the wireless communication terminal 600. The radio base station 500 may include the moving speed of the radio communication terminal 600 derived using any method in the information. The radio base station 500 includes, for example, the moving speed of the radio communication terminal 600 derived using a moving speed deriving method using the Doppler effect in the information.

  The base station reception unit 120 includes a reception level acquisition unit 122, a distance acquisition unit 126, and a moving speed acquisition unit 128. It is not always essential that the base station receiving unit 120 has all these configurations. The reception level acquisition unit 122 acquires the reception level of radio waves from the radio base station 500 by the radio communication terminal 600 from the information received from the radio base station 500 by the base station reception unit 120. The distance acquisition unit 126 acquires the distance between the radio base station 500 and the radio communication terminal 600 from the information received from the radio base station 500 by the base station reception unit 120. The moving speed acquisition unit 128 acquires the moving speed of the radio communication terminal 600 from the information received from the radio base station 500 by the base station receiving unit 120. Base station position information acquisition section 129 acquires base station position information indicating the position of radio base station 500. The base station position information acquisition unit 129 accesses, for example, a base station database that stores base station identification information for identifying the radio base station 500 and base station position information of the radio base station 500 in association with each other, and performs radio communication terminal The base station position information corresponding to the base station identification information received from is acquired.

  The position estimation unit 130 uses the position estimation model stored in the model storage unit 116 to estimate the position of the radio communication terminal 600 from the information received by the base station reception unit 120. The position estimation unit 130 may estimate the position of the wireless communication terminal 600 from the reception level acquired by the reception level acquisition unit 122 using the position estimation model stored in the model storage unit 116. The position estimation unit 130 may use a position estimation model corresponding to the target range for position estimation. The position estimation unit 130 may use a position estimation model corresponding to the radio base station 500 where the radio communication terminal 600 is located.

  The position estimation unit 130 may estimate the position of the wireless communication terminal 600 based further on the base station position information acquired by the base station position information acquisition unit 129. The position estimation unit 130 may estimate the position of the information processing apparatus 100 based further on the distance acquired by the distance acquisition unit 126. The position estimation unit 130 may estimate the position of the wireless communication terminal 600 further based on the movement speed acquired by the movement speed acquisition unit 128.

  The map information acquisition unit 132 acquires map information. The map information acquisition unit 132 acquires map information via the network 10 from, for example, a map server that provides map information. The map information acquisition unit 132 may read map information stored in the external storage medium.

  The position estimation unit 130 may estimate the position of the wireless communication terminal 600 further based on the map information acquired by the map information acquisition unit 132. For example, the position estimation unit 130 determines the movement history of the wireless communication terminal 600 from the time-series estimated position of the wireless communication terminal 600 and determines that the wireless communication terminal 600 is moving on a road. When the position is off the road, the estimated position is corrected on the road to obtain the final estimated position. In addition, for example, when the position estimation unit 130 determines that the wireless communication terminal 600 is located in the train from the movement history and the moving speed of the wireless communication terminal 600, the estimated position Is corrected to the final estimated position.

  FIG. 3 schematically shows an example of the model management table 140. The model management table 140 is a table for managing a position estimation model for each base station parameter of the radio base station 500. The model generation unit 114 may generate a position estimation model for each base station parameter of the radio base station 500.

  For example, the information acquisition unit 106 uses the measurement information measured by the radio communication terminal 620 when the base station parameter A is set for the radio base station 500, and the base station parameter B for the radio base station 500. Measurement information measured by the wireless communication terminal 620 when set is acquired. In addition, the information acquisition unit 110 sets the measurement information measured by the radio communication terminal 630 when the base station parameter A is set for the radio base station 500, and the base station parameter B for the radio base station 500. Measurement information measured by the wireless communication terminal 630 when set is acquired.

  Next, the information selection unit 112 performs measurement information when the base station parameter A is set for the radio base station 500, and measurement when the base station parameter B is set for the radio base station 500. Information is selected in the same manner as described above. Then, the model generation unit 114 generates a position estimation model corresponding to the base station parameter A based on the measurement information when the base station parameter A is set for the radio base station 500, and the radio base station 500 On the other hand, a position estimation model corresponding to the base station parameter B is generated based on the measurement information when the base station parameter B is set.

  The base station parameter may include at least one of transmission power, tilt angle, and bandwidth by the radio base station 500. Further, the base station parameters may include other parameters. The plurality of base station parameters may be different in at least one of transmission power, tilt angle, and bandwidth.

  When estimating the position of the radio communication terminal 600, the position estimation unit 130 uses a position estimation model corresponding to the base station parameter set in the radio base station 500 when the radio communication terminal 600 performs measurement. The position of the wireless communication terminal 600 may be estimated. Thus, the position estimation accuracy can be improved by generating the position estimation model for each base station parameter.

  FIG. 4 schematically shows an example of the flow of processing by the information processing apparatus 100. FIG. 4 schematically shows a selection process by the information selection unit 104.

  In step (step may be abbreviated as S) 102, the information selection unit 104 acquires measurement information from the information collection unit 102. In S104, the information selection unit 104 determines whether the reliability included in the measurement information is higher than a predetermined threshold. If it is determined that it is high, the process proceeds to S106, and if it is determined that it is not high, the process proceeds to S110.

  In S106, the information selection unit 104 determines whether or not the moving speed of the wireless communication terminal 620 included in the measurement information is slower than a predetermined threshold value. If it is determined that it is late, the process proceeds to S108, and if it is determined that it is not late, the process proceeds to S110.

  In S108, the information selection unit 104 selects measurement information. In S110, the information selection unit 104 determines whether there is unprocessed measurement information. If it is determined that there is, the process returns to S102, and if it is determined that there is not, the process is terminated.

  FIG. 5 is an explanatory diagram for explaining the sorting process by the information sorting unit 112. FIG. 5 illustrates a feature space in which the information selection unit 112 uses the measurement information 22 acquired by the information acquisition unit 106 and the measurement information 32 acquired by the information acquisition unit 110 as reception axes, reception quality, and cell IDs as three axes. The state arrange | positioned in is illustrated.

  The information selection unit 112 groups the measurement information 22 and the measurement information 32 similar to the measurement information 22, that is, the measurement information 32 located in the vicinity of the measurement information 22 in the feature space. Further, the information selection unit 112 groups the measurement information 32 in which the measurement information 22 does not exist in the vicinity. FIG. 5 shows a group including measurement information 22, four measurement information 32 within a range 24 centered on the measurement information 22, and a group including five measurement information 32 in which no measurement information 22 exists in the vicinity. Illustrated.

  For the former group, the information selection unit 112 has a distance derived from the position information included in the measurement information 22 and the position information included in the measurement information 32 for each of the four pieces of measurement information 32 greater than a predetermined threshold. The measurement information 32 is excluded and the small measurement information 32 is selected. The threshold value may be arbitrarily set, for example, 200 m, 300 m, or the like. Further, the information selection unit 112 selects all the measurement information 32 for the latter group.

  The position information included in the measurement information 32 located near the measurement information 22 in the feature space shown in FIG. 5 is highly likely to approximate the position information included in the measurement information 22. Nevertheless, if the position information does not approximate, there is a high possibility that the position estimation accuracy of the measurement information 32 is low. According to the information selection unit 112 according to the present embodiment, it is possible to exclude such measurement information 32 that is likely to have low position estimation accuracy, and prevent the position estimation accuracy of the position estimation model from being lowered. it can.

  FIG. 6 schematically shows an example of the flow of processing by the information processing apparatus 100. FIG. 6 schematically shows the sorting process by the information sorting unit 112.

  In S <b> 202, the information selection unit 112 acquires measurement information from the information acquisition unit 110. In S204, the information selection unit 112 estimates the position of the wireless communication terminal 630 from the reception level in the measurement information acquired in S202 using the position estimation model generated by the model generation unit 108.

  In S206, the information selection unit 112 compares the position estimated in S204 with the position indicated by the position information in the measurement information acquired in S202. In S208, the information selection unit 112 determines whether the difference between the position estimated in S204 and the position indicated by the position information in the measurement information acquired in S202 is lower than a predetermined threshold. If it is determined that the value is low, the process proceeds to S210. If it is determined that the value is not low, the process proceeds to S212.

  In S210, the information selection unit 112 selects measurement information. In S212, the information selection unit 112 determines whether there is unprocessed measurement information. If it is determined that there is, the process returns to S202, and if it is determined that there is not, the process ends.

  FIG. 7 schematically shows an example of the flow of processing by the information processing apparatus 100. FIG. 7 schematically shows position estimation processing by the position estimation unit 130.

  In S <b> 302, the position estimation unit 130 acquires information from the radio base station 500 from the base station reception unit 120. In S304, position estimation section 130 estimates the position of radio communication terminal 600 from the reception level in the information from radio base station 500 using the position estimation model stored in model storage section 116.

  In S306, the position estimation unit 130 calculates the distance between the estimated position and the radio base station 500 from the estimated position estimated in S304 and the base station position information in the information from the radio base station 500. In S308, the position estimation unit 130 determines whether or not the calculated distance is smaller than a predetermined threshold. If it is determined to be small, the process proceeds to S310, and if it is not small, the process proceeds to S316.

  In S310, the position estimation unit 130 compares the distance calculated in S306 with the distance between the radio base station 500 and the radio communication terminal 600 in the information from the radio base station 500. In S312, the position estimation unit 130 determines whether or not the difference between the distance calculated in S306 and the distance between the radio base station 500 and the radio communication terminal 600 in the information is smaller than a predetermined threshold. If it is determined to be small, the process proceeds to S314, and if it is determined not to be small, the process proceeds to S316.

  In S314, the position estimation unit 130 determines to adopt the estimated position estimated in S304. In S316, the position estimation unit 130 determines whether there is unprocessed measurement information. If it is determined that there is, the process returns to S302, and if it is determined that there is not, the process ends.

  As described above, the position estimation unit 130 determines in advance the difference between the position estimated from the reception level using the position estimation model stored in the model storage unit 116 and the position of the base station indicated by the base station position information. If it is smaller than the threshold value, the estimated position is adopted, and if it is larger than the threshold value, the estimated position is not adopted and excluded from the result. The threshold value may be set arbitrarily. The position estimation unit 130 sets a threshold based on the cell 510 of the radio base station 500, for example. As a specific example, the position estimation unit 130 sets the distance between the radio base station 500 and the end of the cell 510 as a threshold value. As a result, when the position of the wireless communication terminal 600 that should be in the wireless base station 500 is estimated as a position outside the cell 510, the estimated position may be excluded from the result without adopting the position. it can. As a result, when the position estimation unit 130 estimates the positions of the plurality of wireless communication terminals 600, only the estimated position with high accuracy is obtained as a result by excluding the estimated position having a high probability of deviation from the original position. Can be included.

  In addition, as described above, the position estimation unit 130 includes a distance between the position estimated from the reception level using the position estimation model stored in the model storage unit 116 and the position of the base station indicated by the base station position information, When the difference between the distance between the radio base station 500 and the radio communication terminal 600 included in the information from the radio base station 500 is smaller than a predetermined threshold, the estimated position is adopted, and when the difference is larger than the threshold, the estimated position Is excluded from the results without adopting. Thereby, for example, although the estimated position is located in the cell 510 of the radio base station 500 where the radio communication terminal 600 is located, the distance between the radio base station 500 and the radio communication terminal 600 indicated by the estimated position If the distance between the radio base station 500 and the radio communication terminal 600 indicated by the information from the radio base station 500 is greatly different, it can be excluded from the result without adopting the estimated position. As a result, when the position estimation unit 130 estimates the positions of the plurality of wireless communication terminals 600, only the estimated position with high accuracy is obtained as a result by excluding the estimated position having a high probability of deviation from the original position. Can be included.

  FIG. 8 is an explanatory diagram illustrating an example of timing for generating the position estimation model. FIG. 8 schematically shows changes in the number of collections of the measurement information 22 and the measurement information 32 since the base station parameters of the radio base station 500 are changed, and the timing of generating the position estimation model.

  In this example, the model generation unit 108 and the model generation unit 114 are in a position while both the number of collections of the measurement information 22 and the number of collections of the measurement information 32 are less than a threshold value that is predetermined as the number of data necessary for learning. Do not generate an estimation model. The model generation unit 114 generates a position estimation model using the measurement information 32 selected by the measurement information 22 in response to the number of collections of the measurement information 32 being greater than the threshold value. In this case, the position estimation unit 130 performs position estimation using a position estimation model generated using the measurement information 32 selected by the measurement information 22. The model generation unit 108 generates a position estimation model using the measurement information 22 in response to the collection number of the measurement information 22 being greater than the threshold value. In this case, the position estimation unit 130 performs position estimation using the position estimation model generated using the measurement information. That is, the position estimation unit 130 preferentially uses the position estimation model generated using the measurement information 22 when the number of collections of the measurement information 32 is greater than the threshold and the number of collections of the measurement information 22 is greater than the threshold. Good.

  As described above, by generating the position estimation model according to the number of collections of the measurement information 22 and the number of collections of the measurement information 32, an appropriate position estimation model corresponding to the situation can be generated. In FIG. 8, the case where the threshold value for the measurement information 22 and the threshold value for the measurement information 32 are the same has been described as an example, but the present invention is not limited to this. For example, the threshold for the measurement information 32 is set larger than the threshold for the measurement information 22 such that the threshold for the measurement information 32 is 100,000 and the threshold for the measurement information 22 is 10,000. The threshold value for 22 may be different.

  FIG. 9 schematically illustrates an exemplary hardware configuration of a computer 1000 that functions as the information processing apparatus 100. The computer 1000 according to this embodiment includes a CPU peripheral unit including a CPU 1010, a RAM 1030, and a graphic controller 1085 that are connected to each other by a host controller 1092; a ROM 1020 that is connected to the host controller 1092 by an input / output controller 1094; An input / output unit having F1040, a hard disk drive 1050, a DVD drive 1070, and an input / output chip 1080 is provided.

  The CPU 1010 operates based on programs stored in the ROM 1020 and the RAM 1030 and controls each unit. The graphic controller 1085 acquires image data generated by the CPU 1010 or the like on a frame buffer provided in the RAM 1030 and displays the image data on the display 1090. Alternatively, the graphic controller 1085 may include a frame buffer that stores image data generated by the CPU 1010 or the like.

  The communication I / F 1040 communicates with other devices via a network by wire or wireless. The communication I / F 1040 functions as hardware that performs communication. The hard disk drive 1050 stores programs and data used by the CPU 1010. The DVD drive 1070 reads a program or data from the DVD-ROM 1072 and provides it to the hard disk drive 1050 via the RAM 1030.

  The ROM 1020 stores a boot program executed when the computer 1000 is started up, a program depending on the hardware of the computer 1000, and the like. The input / output chip 1080 connects various input / output devices to the input / output controller 1094 via, for example, a parallel port, a serial port, a keyboard port, a mouse port, and the like.

  A program provided to the hard disk drive 1050 via the RAM 1030 is stored in a recording medium such as a DVD-ROM 1072 or an IC card and provided by a user. The program is read from the recording medium, installed in the hard disk drive 1050 via the RAM 1030, and executed by the CPU 1010.

  A program that is installed in the computer 1000 and causes the computer 1000 to function as the information processing apparatus 100 may work on the CPU 1010 or the like to cause the computer 1000 to function as each unit of the information processing apparatus 100. The information processing described in these programs is read by the computer 1000, whereby the information collecting unit 102, the information selecting unit 104, which are specific means in which the software and the various hardware resources described above cooperate. Functions as the information acquisition unit 106, the model generation unit 108, the information acquisition unit 110, the information selection unit 112, the model generation unit 114, the model storage unit 116, the base station reception unit 120, the position estimation unit 130, and the map information acquisition unit 132. . And the specific information processing apparatus 100 according to the intended purpose is constructed | assembled by implement | achieving the calculation or processing of the information according to the intended purpose of the computer 1000 in this embodiment by these specific means.

  In the above embodiment, the information processing apparatus 100 includes the information collection unit 102, the information selection unit 104, the information acquisition unit 106, the model generation unit 108, the information acquisition unit 110, the information selection unit 112, the model generation unit 114, the model storage unit 116, Although the example provided with the base station receiving part 120, the position estimation part 130, and the map information acquisition part 132 was given and demonstrated, it is not restricted to this. An apparatus having some of these configurations may be provided.

  For example, an information selection device including the information collection unit 102 and the information selection unit 104 may be provided. The information selection device may transmit the measurement information selected by the information selection unit 104 to the information acquisition unit 106 provided in another device.

  In addition, a model generation apparatus including the information acquisition unit 106, the model generation unit 108, the information acquisition unit 110, the information selection unit 112, and the model generation unit 114 may be provided. The model generation device may store the position estimation model generated by the model generation unit 114 in the model storage unit 116 included in another device. The model generation apparatus may further include an information collection unit 102 and an information selection unit 104.

  In addition, a position estimation apparatus including the model storage unit 116, the base station reception unit 120, the position estimation unit 130, and the map information acquisition unit 132 may be provided. The position estimation device may not include the map information acquisition unit 132. The position estimation apparatus may further include an information acquisition unit 106, a model generation unit 108, an information acquisition unit 110, an information selection unit 112, and a model generation unit 114.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiment. It is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

  The order of execution of each process such as operations, procedures, steps, and stages in the apparatus, system, program, and method shown in the claims, the description, and the drawings is particularly “before” or “prior to”. It should be noted that it can be realized in any order unless the output of the previous process is used in the subsequent process. Regarding the operation flow in the claims, the description, and the drawings, even if it is described using “first,” “next,” etc. for convenience, it means that it is essential to carry out in this order. It is not a thing.

10 network, 20 location information collection device, 22 measurement information, 24 range, 30 location information collection device, 32 measurement information, 100 information processing device, 102 information collection unit, 104 information selection unit, 106 information acquisition unit, 108 model generation unit 110 information acquisition unit, 112 information selection unit, 114 model generation unit, 116 model storage unit, 120 base station reception unit, 122 reception level acquisition unit, 126 distance acquisition unit, 128 movement speed acquisition unit, 129 base station position information acquisition Unit, 130 position estimation unit, 132 map information acquisition unit, 140 model management table, 500 wireless base station, 510 cell, 600 wireless communication terminal, 620 wireless communication terminal, 630 wireless communication terminal, 640 wireless communication terminal, 1000 computer, 1010 CPU, 1020 ROM, 1030 R M, 1040 communication I / F, 1050 hard drive, 1070 DVD drive, 1072 DVD-ROM, 1080 output chip 1085 graphics controller, 1090 a display, 1092 host controller, 1094 output controller

Claims (25)

A reception level of radio waves from a radio base station by a radio communication terminal at an arbitrary point, and a position indicating a position at the point measured by the radio communication terminal using the first position measurement method and the second position measurement method A first information acquisition unit that acquires first information including information;
A second including a reception level of a radio wave from a radio base station by a radio communication terminal at an arbitrary point, and position information indicating the position of the point measured by the radio communication terminal using the first position measurement technique. A second information acquisition unit for acquiring information;
An information sorting unit that sorts the plurality of second information acquired by the second information acquisition unit based on the plurality of first information;
Based on the plurality of first information, a first position estimation model for estimating the position of the wireless communication terminal is generated from the reception level of the wireless communication terminal, and the plurality of second information selected by the information selection unit And a model generation unit for generating a second position estimation model for estimating the position of the wireless communication terminal from the reception level of the wireless communication terminal,
The accuracy of the position measured using the first position measurement method and the second position measurement method is higher than the accuracy of the position measured using the first position measurement method.   The information according to claim 1, wherein the model generation unit generates the second position estimation model based on the plurality of second information selected by the information selection unit and the plurality of first information. Processing equipment. The first information further includes reception quality of radio waves from the radio base station by the radio communication terminal, and a cell ID for identifying a cell of the radio base station in which the radio communication terminal is located,
The second information further includes radio wave reception quality from the radio base station by the radio communication terminal, and a cell ID for identifying a cell of the radio base station in which the radio communication terminal is located,
The information selection unit is configured such that the second information acquisition unit is based on the reception level, reception quality, and cell ID of the first information and the second information, and the position information of the first information and the second information. The information processing apparatus according to claim 1, wherein the plurality of acquired second information is selected.   The information selection unit identifies the second information similar to the first information based on the reception level, reception quality, and cell ID of the first information and the second information, and the position information of the first information The plurality of pieces of second information are selected by selecting the second information having a distance derived from position information of the second information similar to the first information that is smaller than a predetermined threshold. The information processing apparatus described.   The information processing apparatus according to claim 1, wherein the information sorting unit sorts the plurality of second information acquired by the second information acquisition unit based on the first position estimation model.   The information selection unit has a predetermined difference between the position estimated from the reception level included in the second information using the first position estimation model and the position indicated by the position information included in the second information. The information processing apparatus according to claim 5, wherein the second information is selected by selecting the second information that is smaller than a threshold value. The first information further includes a reliability of the position information,
The information according to any one of claims 1 to 6, wherein the first information acquisition unit acquires a plurality of the first information selected based on the reliability among a plurality of the first information. Processing equipment. The first information further includes a moving speed of the wireless communication terminal,
The information according to any one of claims 1 to 7, wherein the first information acquisition unit acquires a plurality of the first information selected based on the moving speed among a plurality of the first information. Processing equipment.   The information processing apparatus according to claim 8, wherein the first information acquisition unit acquires a plurality of the first information whose moving speed is slower than a predetermined threshold among the plurality of first information. The first information acquisition unit acquires the first information for each target range of position estimation,
The second information acquisition unit acquires the second information for each target range of position estimation,
The model generation unit generates the first position estimation model based on a plurality of the first information for a target range in which the number of the first information is greater than a threshold associated with the target range, A target range in which the number of the first information is less than the threshold value associated with the target range and the number of the second information is greater than the threshold value associated with the target range is selected by the information selection unit. The information processing apparatus according to claim 1, wherein the second position estimation model is generated based on the plurality of pieces of the second information. The first information acquisition unit includes a reception level of radio waves from the radio base station by the radio communication terminal when the first base station parameter is set for the radio base station and the position information Reception level of radio waves from the radio base station by the radio communication terminal when first information and a second base station parameter different from the first base station parameter is set for the radio base station And the first information including the position information,
The second information acquisition unit includes a reception level of the radio wave from the radio base station and the position information by the radio communication terminal when a first base station parameter is set for the radio base station. The second information including the second information, the reception level of the radio wave from the radio base station by the radio communication terminal when the second base station parameter is set for the radio base station, and the position information And get the
The information selection unit, based on a plurality of the first information when the first base station parameter is set for the radio base station, the first base station for the radio base station Based on a plurality of the first information when the second base station parameter is set for the radio base station, selecting a plurality of the second information when the parameter is set, Selecting a plurality of second information when the second base station parameter is set for a radio base station;
The model generation unit is configured to output the plurality of first information and the radio base station selected by the information selection unit when the first base station parameter is set for the radio base station. A position estimation model corresponding to the first base station parameter is generated based on a plurality of the second information when the first base station parameter is set, and the second base station parameter is transmitted to the radio base station. A plurality of the first information when the base station parameter is set and a plurality of the first information when the second base station parameter is set for the radio base station selected by the information selection unit The information processing apparatus according to claim 1, wherein a position estimation model corresponding to the second base station parameter is generated based on two information. The base station parameter includes at least one of transmission power, tilt angle, and bandwidth by the radio base station,
The information processing apparatus according to claim 11, wherein at least one of transmission power, tilt angle, and bandwidth is different between the first base station parameter and the second base station parameter.   In response to the number of the second information acquired by the second information acquisition unit being greater than a predetermined threshold when the base station parameter of the radio base station is changed, the model generation unit The second position estimation model is generated based on the plurality of second information, and the number of the first information acquired by the first information acquisition unit is greater than a predetermined threshold. The information processing apparatus according to claim 1, wherein the first position estimation model is generated based on the plurality of first information.   The information processing apparatus according to claim 13, wherein the threshold value to be compared with the number of the second information is different from the threshold value to be compared with the number of the first information. A reception level acquisition unit for acquiring a reception level of radio waves from a wireless base station by a wireless communication terminal;
A position estimation unit that estimates the position of the wireless communication terminal from the reception level acquired by the reception level acquisition unit using the first position estimation model or the second position estimation model;
In response to the number of the second information acquired by the second information acquisition unit being greater than a predetermined threshold when the base station parameter of the radio base station is changed, The position of the wireless communication terminal is estimated using the second position estimation model, and the number of the first information acquired by the first information acquisition unit is greater than a predetermined threshold. The information processing apparatus according to claim 13 or 14, wherein the position of the wireless communication terminal is estimated using the first position estimation model.   In the position estimation unit, the number of the second information acquired by the second information acquisition unit is greater than the predetermined threshold, and the number of the first information acquired by the first information acquisition unit is The information processing apparatus according to claim 15, wherein when the number is greater than a predetermined threshold, the position of the wireless communication terminal is specified using the first position estimation model.   The position estimation unit is configured such that when the base station parameter of the radio base station is changed, the number of the second information acquired by the second information acquisition unit is less than the predetermined threshold, and the first information When the number of the first information acquired by one information acquisition unit is less than the predetermined threshold, the position estimation of the wireless communication terminal using the first position estimation model and the second position estimation model are used. The information processing apparatus according to claim 16, wherein the position of the received wireless communication terminal is not estimated. A reception level acquisition unit for acquiring a reception level of radio waves from a wireless base station by a wireless communication terminal;
The position estimation part which estimates the position of the said radio | wireless communication terminal from the reception level which the said reception level acquisition part acquired using the said 1st position estimation model, These are provided. Information processing device.   The information processing apparatus according to any one of claims 15 to 18, wherein the reception level acquisition unit acquires the reception level transmitted by the radio base station. The base station identification information for identifying the radio base station and the base station database for storing the base station position information indicating the position of the radio base station are accessed in association with each other, and the base station identification information received from the radio communication terminal A base station location information acquisition unit for acquiring corresponding base station location information,
The information processing apparatus according to any one of claims 15 to 19, wherein the position estimation unit estimates the position of the wireless communication terminal further based on the base station position information. A distance acquisition unit for acquiring a distance between the wireless communication terminal and the wireless base station transmitted by the wireless base station;
The information processing apparatus according to claim 20, wherein the position estimation unit estimates the position of the wireless communication terminal further based on the distance acquired by the distance acquisition unit. A moving speed acquisition unit that acquires the moving speed of the wireless communication terminal transmitted by the wireless base station,
The information processing apparatus according to any one of claims 15 to 21, wherein the position estimation unit estimates the position of the wireless communication terminal further based on the moving speed. A map information acquisition unit that acquires map information
The information processing apparatus according to any one of claims 15 to 22, wherein the position estimation unit estimates the position of the wireless communication terminal further based on the map information. The first position measurement technique is a position measurement technique using GPS,
The second position measurement method is a position measurement method using WiFi.
The information processing apparatus according to any one of claims 1 to 23.   The program for functioning a computer as an information processing apparatus as described in any one of Claim 1 to 24.

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