JP6034843B2 - Program, wireless terminal, information collecting apparatus and information collecting system - Google Patents

Description

  The present invention relates to a program, a wireless terminal, and an information collection device.

It is known to measure the line speed of a mobile communication network using a portable terminal (see, for example, Patent Document 1).
(Prior art documents)
(Patent Literature)
(Patent Document 1) Japanese Patent Application Laid-Open No. 2003-249887

  If the line speed measurement results are collected more than necessary, the load on the communication network increases.

  In the first aspect of the present invention, a program is provided. The program may be a program for causing a computer included in the wireless terminal to function as a first position information acquisition unit that acquires the first position information of the first positioning accuracy indicating the position of the wireless terminal. Said program may be a program for functioning a computer as a 2nd position information acquisition part which acquires the 2nd position information of the 2nd positioning accuracy higher than the 1st positioning accuracy which shows the position of a radio | wireless terminal. The above program acquires the second position information to the second position information acquisition unit when it is detected that the wireless terminal has moved from the outside to the inside of the first area based on the first position information. It may be a program for functioning as a control unit. The above-described program is a communication that indicates a communication environment of a wireless terminal when it is detected that the wireless terminal has moved from the outside to the inside of the second area in the first area based on the second position information. It may be a program for functioning as a communication environment information acquisition unit for acquiring environment information. A computer-readable recording medium recording the above program may be provided.

  The program may be a program for causing a computer to function as a movement speed information acquisition unit that acquires movement speed information indicating the movement speed of the wireless terminal. In the above program, the communication environment information acquisition unit detects that the wireless terminal has moved from the outside to the inside of the second area, and when the moving speed indicated by the speed information is smaller than a predetermined value, Communication environment information may be acquired. In the above program, the first position information acquisition unit may acquire first position information using position information of a relay device that relays communication of a wireless terminal. In the above program, the second position information acquisition unit may acquire second position information using a GPS signal or a short-range wireless signal.

  The above program may be a program for causing a computer to function as an event detection unit that detects a predetermined event. The above program causes a computer to function as a selection unit that selects one or more first areas from a plurality of predetermined areas when the event detection unit detects a predetermined event. It can be a program. In the above program, the selection unit selects one or more first areas based on the distance between the position when the event detection unit detects a predetermined event and each of a plurality of predetermined areas. You can do it.

  The above program causes the computer to communicate in the second area based on at least one of the number of communication environment information in the second area and the rate of increase in the number of communication environment information in the second area acquired by another wireless terminal. It may be a program for functioning as a setting unit that sets at least one of the number of times environmental information is acquired, the frequency of acquiring communication environment information in the second area, and the geographical range of the second area. In the above program, the setting unit at least has at least predetermined information on whether or not to acquire the communication environment information of the second area, the frequency of acquisition of the communication environment information of the second area, and the geographical range of the second area. One may be set to a predetermined condition.

  In a second aspect of the present invention, a wireless terminal is provided. The wireless terminal may include a first position information acquisition unit that acquires first position information with a first positioning accuracy that indicates a position of the wireless terminal. You may provide the 2nd position information acquisition part which acquires the 2nd position information of the 2nd positioning accuracy which shows the position of a radio | wireless terminal. A control unit may be provided that causes the second position information acquisition unit to acquire the second position information when it is detected that the wireless terminal has moved from the outside to the inside of the first area based on the first position information. Communication environment information for acquiring communication environment information indicating the communication environment of the wireless terminal when it is detected that the wireless terminal has moved from the outside to the inside of the second area in the first area based on the second position information. An acquisition unit may be provided. In the above wireless terminal, the second positioning accuracy may be higher than the first positioning accuracy.

  In a third aspect of the present invention, an information collection device is provided. The information collection device may include a collection unit that collects communication environment information acquired by one or more wireless terminals and indicating a communication environment of a predetermined area. The information collection device described above is based on the number of communication environment information to be acquired in the area and at least one of the number of communication environment information acquired in the area and the rate of increase in the number of communication environment information in the area. A determination unit that determines a change in at least one setting of the communication environment information acquisition frequency, the communication environment information acquisition frequency in the area, and the geographical range of the area. The information collection apparatus may include a transmission unit that transmits a control signal instructing change of at least one setting determined by the determination unit to at least a part of one or more wireless terminals.

  In the above information collection device, the determination unit acquires communication environment information in the area when the number of communication environment information acquired in the area is smaller than a set value of the number of communication environment information to be acquired in the area. You may decide to increase the frequency. In the above information collection device, the determination unit acquires communication environment information in the area when the number of communication environment information acquired in the area is equal to or greater than a set value of the number of communication environment information to be acquired in the area. It may be decided to stop or to narrow the geographical range of the area.

  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 information gathering system 100 is shown roughly. An example of the radio | wireless terminal 110 is shown schematically. An example of information gathering server 120 is shown roughly. An example of data table 400 is shown roughly.

  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. In the drawings, the same or similar parts are denoted by the same reference numerals, and redundant description may be omitted.

  FIG. 1 schematically illustrates an example of an information collection system 100. In FIG. 1, the geofence 32 and the geofence 34 are set around the station 20, and the radio terminal 110 of the station 20 is used by using the radio terminal 110 of the passenger of the train or the radio terminal 110 installed on the train. The details of the information collection system 100 will be described by taking as an example the case of acquiring information related to the communication environment.

  In the present embodiment, the geofence 34 is included in an area surrounded by the geofence 32. Further, at least a part of the station 20 is included in an area surrounded by the geofence 34. A geofence is a virtual geographical boundary. The area surrounded by the geofence 32 may be an example of a first area. The region surrounded by the geofence 34 may be an example of a second area.

  In the present embodiment, the information collection system 100 includes a wireless terminal 110 and an information collection server 120. The wireless terminal 110 and the information collection server 120 transmit and receive information to and from each other via the communication network 10. The information collection system 100 and the information collection server 120 may be an example of an information collection device.

  The communication network 10 transmits information between the wireless terminal 110 and the information collection server 120. In the present embodiment, the communication network 10 includes a relay device 12. The relay device 12 relays communication between the wireless terminal 110 and the information collection server 120. Examples of the relay device 12 include an access point and a base station.

  The communication network 10 may be a wired communication transmission line, a wireless communication transmission line, or a combination thereof. The communication network 10 may be the Internet, a dedicated line, a wireless communication network, or a combination thereof. The communication method in the wireless communication network may be a mobile communication method or a wireless data communication method. Examples of the mobile communication system include 3G system, LTE system, and 4G system. Wireless data communication methods include wireless PAN methods such as ZigBee (registered trademark) or Bluetooth (registered trademark), wireless LAN methods such as WiFi (registered trademark), wireless MAN methods such as WiMAX (registered trademark), wireless A WAN system etc. can be illustrated.

  The wireless terminal 110 transmits / receives information to / from a device connected to the communication network 10. The wireless terminal 110 may support a plurality of communication methods. For example, the wireless terminal 110 supports both mobile communication methods such as 3G, LTE, and 4G methods, and wireless communication methods such as a wireless LAN method and a wireless MAN method. Examples of the wireless terminal 110 include a personal computer and a mobile terminal. Examples of the portable terminal include a mobile phone, a smart phone, a PDA, a tablet, a notebook computer or a laptop computer, and a wearable computer. The wireless terminal 110 may be a wireless communication module installed in a moving body such as an automobile, a motorcycle, a bicycle, a train, a ship, an aircraft, an unmanned mobile device (sometimes referred to as a drone).

  In the present embodiment, the wireless terminal 110 includes a positioning unit that acquires position information indicating the position of the wireless terminal 110. The wireless terminal 110 may include two or more types of positioning units. Each of the two or more types of positioning units differs in at least one of positioning accuracy and power consumption, for example. A method for specifying the position of the wireless terminal 110 is not particularly limited. The position of the wireless terminal 110 may be specified by the latitude and longitude of the position or the latitude, longitude and altitude of the position. The position of the wireless terminal 110 may be specified by information identifying the address or facility of the position.

  The wireless terminal 110 acquires communication environment information indicating the communication environment of the wireless terminal 110. The wireless terminal 110 associates the acquired communication environment information with the position information of the position where the communication environment information is acquired, and transmits it to the information collection server 120. The wireless terminal 110 associates the acquired communication environment information, the position information of the position from which the communication environment information has been acquired, and the terminal identification information of the wireless terminal 110 from which the communication environment information has been acquired. 120 may be transmitted.

  Examples of communication environment information include information on communication carriers, frequency bands of radio waves used for communication, base stations to which the wireless terminal 110 is connected, communication method, radio wave level, communication quality, communication availability, etc. Can do. The communication environment information may include information regarding the communication network 10.

  Examples of the information on the base station include CID (Cell ID), LAC (Location Area Code), PSC (Primary Scrambling Code), and the like. Examples of communication methods include 3G, LTE, 4G, WiFi, tethering, and the like.

  The radio wave level includes radio wave reception level, radio wave intensity, RSCP (Received Signal Code Power), RSRP (Reference Signal Received Power), RSRQ (Reference Signal Received Quality), and the number of antennas displayed on the display unit of the wireless terminal 110. Can be illustrated. Examples of communication quality include communication speed, data communication throughput, data communication latency, and the like.

  Whether communication is possible is, for example, when the radio wave reception level is lower than a predetermined level (for example, when out of service area) or when searching for radio waves, communication is not possible (referred to as communication impossible). ). If communication cannot be established within a predetermined period, it may be determined that communication is not possible. If the frequency of occurrence of communication errors is greater than a predetermined value, it may be determined that communication is not possible.

  Whether or not communication is possible may be determined based on a result of repeating a process (sometimes referred to as trial) of acquiring information on a specific radio wave condition or communication quality a plurality of times. For example, when the proportion of trials in which the radio wave condition or the communication quality is better than a predetermined first threshold among the predetermined number of trials is greater than a predetermined second threshold It is determined that communication is possible (sometimes referred to as communication possible). In other cases, it is determined that communication is not possible.

  The terminal identification information of a wireless terminal is not particularly limited as long as it is information for identifying each of one or more wireless terminals. The terminal identification information of the wireless terminal may be information for identifying each of the one or more wireless terminals for a predetermined period.

  The terminal identification information includes a MAC address, a BD address for identifying a Bluetooth (registered trademark) compatible device (sometimes referred to as BD_ADDR), an address for identifying a ZigBee (registered trademark) compatible device (ZigBeeID and IDs unique to wireless terminals, such as ID numbers recorded on various SIM (Subscriber Identity Module) cards. The terminal identification information is an ID unique to the contractor assigned to each contractor of the wireless terminal (sometimes referred to as a contractor specific ID. Depending on the communication carrier, the terminal manufacturing number, user ID, i-mode ( (Registered trademark) ID, subscriber ID, EZ number, terminal serial number, etc.).

  The terminal identification information of the wireless terminal may be information that is assigned by a specific application and used for uniquely identifying the wireless terminal. Examples of information for uniquely identifying a wireless terminal by an application include a token used for PUSH notification, an account of a web service such as SNS (social networking service), and the like.

  The wireless terminal 110 executes a predetermined process triggered by the detection of the entry / exit of the geofence by the wireless terminal 110. In one embodiment, the wireless terminal 110 is enabled / disabled or ON / OFF of each of two or more positioning units, or two or more positioning units, triggered by detection of the entry / exit of a geofence by the wireless terminal 110. Switch each positioning frequency. In another embodiment, the wireless terminal 110 acquires communication environment information indicating the communication environment of the wireless terminal 110 triggered by the detection of the entry / exit of the geofence by the wireless terminal 110 as a trigger.

  In one embodiment, when the wireless terminal 110 exists outside the area surrounded by the geofence 32, the wireless terminal 110 acquires position information by the first positioning unit among the two or more positioning units. Based on the position information acquired by the first positioning unit, the wireless terminal 110 detects that the wireless terminal 110 has moved from the outside to the inside of the area surrounded by the geofence 32. When it is detected that the wireless terminal 110 has moved from the outside to the inside of the area surrounded by the geofence 32, the wireless terminal 110 has a second type that is different from the first positioning unit among the two or more positioning units. Position information is acquired by the positioning unit.

  The wireless terminal 110 detects that the wireless terminal 110 has moved from the outside to the inside of the area surrounded by the geofence 34 based on the position information acquired by the second positioning unit. When it is detected that the wireless terminal 110 has moved from the outside to the inside of the area surrounded by the geofence 34, the wireless terminal 110 acquires communication environment information. When it is detected that the wireless terminal 110 has moved from the outside to the inside of the area surrounded by the geofence 34, the wireless terminal 110 receives the communication environment information when the moving speed of the wireless terminal 110 is smaller than a predetermined value. May be obtained. Thereby, the communication environment of the wireless terminal 110 can be measured more accurately. In addition, the number of acquired communication environment information can be reduced. As a result, the load on the communication network 10 can be reduced.

  The positioning accuracy of the second positioning unit is preferably higher than the positioning accuracy of the first positioning unit. Thereby, it can be detected with higher accuracy that the wireless terminal 110 has moved from the outside to the inside of the area surrounded by the geofence 34. The power consumption of the first positioning unit is preferably less than the power consumption of the second positioning unit. The first positioning unit may acquire the position information of the wireless terminal 110 based on information that can be acquired when the communication function of the wireless terminal 110 is valid. Thereby, the electric energy consumed by the acquisition process of position information can be reduced.

  In another embodiment, the wireless terminal 110 acquires location information at the first frequency when the wireless terminal 110 is outside the area surrounded by the geofence 32. Based on the acquired position information, the wireless terminal 110 detects that the wireless terminal 110 has moved from the outside to the inside of the area surrounded by the geofence 32. When it is detected that the wireless terminal 110 has moved from the outside to the inside of the area surrounded by the geofence 32, the wireless terminal 110 acquires position information at the second frequency. The second frequency is preferably greater than the first frequency. The first frequency and the second frequency may be set according to the moving speed of the wireless terminal 110. Thereby, it can be detected with higher accuracy that the wireless terminal 110 has moved from the outside to the inside of the area surrounded by the geofence 34. In addition, the amount of power consumed by the position information acquisition process can be reduced.

  In another embodiment, when the wireless terminal 110 exists outside the area surrounded by the geofence 32, the wireless terminal 110 acquires the communication environment information at the first frequency. When it is detected that the wireless terminal 110 has moved from the outside to the inside of the area surrounded by the geofence 32, the wireless terminal 110 acquires the communication environment information at the second frequency. The second frequency may be the same as the first frequency or may be greater than the first frequency. When it is detected that the wireless terminal 110 has moved from the outside to the inside of the area surrounded by the geofence 34, the wireless terminal 110 acquires the communication environment information at the third frequency. The third frequency may be greater than the second frequency. Thereby, the acquisition number of communication environment information can be reduced. As a result, the load on the communication network 10 can be reduced.

  In this embodiment, the case where the wireless terminal 110 sets two geofences for one measurement target has been described. However, the geofence setting method is not limited to this embodiment. The wireless terminal 110 may set three or more geofences for one measurement target.

  The wireless terminal 110 may be realized by starting software or a program that defines the operation of each unit of the wireless terminal 110 in an information processing apparatus having a general configuration. An information processing device used as the wireless terminal 110 includes a data processing device having a processor such as a CPU, a ROM, a RAM, a communication interface, and an input device such as a keyboard, a touch panel, a microphone, a GPS information acquisition device, an acceleration sensor, and a gyro sensor. And an output device such as a display device, a speaker, and a vibration device, and a storage device such as a memory and an HDD. The data processing device or the storage device may store the above software or program. The software or program is executed by a processor, and causes the information processing apparatus to execute an operation defined by the instruction or program.

  The information collection server 120 collects information acquired by one or more wireless terminals 110. In the present embodiment, the information collection server 120 collects communication environment information acquired by the wireless terminal 110 in a predetermined area. Thereby, the acquisition number of communication environment information can be reduced and the load of the communication network 10 can be reduced.

  The information collection server 120 may transmit a signal instructing to change the communication environment information acquisition condition to at least a part of the one or more wireless terminals 110. For example, the information collection server 120 determines that the number of communication environment information to be acquired in a specific area in a predetermined first period and one or more wireless terminals 110 correspond to the predetermined second period. Based on at least one of the number of communication environment information acquired in the area and the rate of increase in the number of communication environment information, the number of acquisitions and the acquisition frequency of communication environment information in the area for a predetermined third period, and , Decide to change at least one of the geographical ranges of the area. The second period may be included in the first period, or may be a period before the first period. The third period may be included in the first period. The third period may be a period after the second period.

  For example, the information collection server 120 sets a target value for the number of communication environment information at Tokyo Station. The information collection server 120 collects communication environment information at Tokyo Station from a plurality of wireless terminals 110. When the number of collected communication environment information at the Tokyo station exceeds the target value, the information collection server 120 sends a signal instructing to stop the acquisition process of the communication environment information at the Tokyo station to all the wireless terminals 110. Send.

  The information collection server 120 may be realized by starting software or a program that defines the operation of each unit of the information collection server 120 in an information processing apparatus having a general configuration. The information processing device used as the information collection server 120 includes a data processing device having a processor such as a CPU, a ROM, a RAM, a communication interface, an input device such as a keyboard, a touch panel, and a microphone, and an output device such as a display device and a speaker. And a storage device such as a memory or an HDD. The data processing device or the storage device may store the above software or program. The software or program is executed by a processor to cause the information processing apparatus to execute an operation defined by the software or program.

  The information collection server 120 may be a virtual server or a cloud system. The information collection server 120 may be realized by a single server or may be realized by a plurality of servers.

  FIG. 2 schematically shows an example of the wireless terminal 110. In the present embodiment, the wireless terminal 110 includes a geofence setting unit 210, a position information acquisition unit 220, a terminal control unit 230, a moving speed acquisition unit 240, and a communication environment acquisition unit 250. The geofence setting unit 210 includes an area information storage unit 212, an area information update unit 214, an event detection unit 216, and an area selection unit 218. The position information acquisition unit 220 includes a low accuracy positioning unit 222 and a high accuracy positioning unit 224. The terminal control unit 230 includes a movement detection unit 232 and a positioning control unit 234.

  The area information update unit 214 may be an example of a setting unit. The area selection unit 218 may be an example of a selection unit. The low-accuracy positioning unit 222 may be an example of a first position information acquisition unit. The high-precision positioning unit 224 may be an example of a second position information acquisition unit. The terminal control unit 230 may be an example of a control unit.

  The geofence setting unit 210 sets a geofence. In the present embodiment, the details of the geofence setting unit 210 will be described by taking as an example a case where the geofence is set on the boundary line between the inside and the outside of the closed region. However, the geofence setting unit 210 is not limited to this embodiment. In other embodiments, the geofence is set to connect two points. When the above-mentioned geofence is displayed on a map, it is displayed as a straight line or a curve connecting two points.

  According to this embodiment, the wireless terminal 110 sets a geofence. Thereby, compared with the case where the information collection server 120 sets a geofence, the communication amount of the radio | wireless terminal 110 and the information collection server 120 can be reduced. Note that the geofence setting method is not limited to this embodiment. The geofence may be set by the information collection server 120.

  The area information storage unit 212 stores information on the area where the geofence is set. The geofence is set, for example, on the boundary line between the inside and outside of each area. The area information storage unit 212 associates, for example, area identification information for identifying each of one or more areas, area position information indicating the geographical range of each area, and communication environment information acquisition conditions in each area. Store.

  In one embodiment, the area information storage unit 212 stores information on an area that exists in the vicinity of the current position of the wireless terminal 110. Thereby, the resource usage of the wireless terminal 110 in the geofence setting process can be reduced. In another embodiment, the area information storage unit 212 stores information on areas where the communication environment should be acquired, and may not store information on areas where the communication environment does not need to be acquired. Thereby, the resource usage of the wireless terminal 110 in the geofence setting process can be reduced.

  The area information update unit 214 updates information on each area stored in the area information storage unit 212. The area information update unit 214 may receive a control signal from the information collection server 120 and update information on each area based on the control signal. The control signal includes information indicating a communication environment information acquisition condition in at least one area among one or more predetermined areas. The acquisition condition may be an example of setting of the wireless terminal 110.

  For example, the control signal includes a command for instructing a change in the acquisition condition of the communication environment information in the area surrounded by the geofence 34. The acquisition condition of the communication environment information in the area surrounded by the geofence 34 includes, for example, at least one of the acquisition frequency and the acquisition frequency of the communication environment information in the area and the geographical range of the area. When the control signal indicates that the number of acquisitions of the communication environment information in the area surrounded by the geofence 34 is 0, the area information update unit 214 relates to the area surrounded by the geofence 34 from the area information storage unit 212. Information may be deleted.

  When the control signal includes information indicating the wireless terminal that is the target of the command included in the control signal, the area information update unit 214 may determine whether or not the wireless terminal 110 is the target of the command. . When the area information update unit 214 determines that the wireless terminal 110 is a target of the above-described command, the area information update unit 214 may update information on each area based on the control signal. The information indicating the wireless terminal that is the target of the command included in the control signal includes the current position of the wireless terminal 110, the position of the wireless terminal 110 at a specific time or period, the model of the wireless terminal 110, the OS of the wireless terminal 110, and the wireless terminal 110 may be information relating to an application installed in 110. The specific time or period may be a specific time or period in the past, or may be a specific time or period in the future.

  The area information update unit 214 may set the acquisition condition of the communication environment information in each area to a predetermined condition at a predetermined timing. The predetermined timing may be a predetermined time or a timing at which a predetermined time has elapsed since the previous update. The predetermined condition may be an initial setting.

  The event detection unit 216 detects a predetermined event (sometimes referred to as a geofence update event). When the event detection unit 216 detects a geofence update event, the event detection unit 216 transmits information indicating the fact to the area selection unit 218.

  The geofence update event may be an event related to the position of the wireless terminal 110. The event related to the position of the wireless terminal 110 includes the start or completion of the location registration process of the wireless terminal 110 to the new base station, the start or completion of the handover process of the wireless terminal 110, and the radio wave from the new relay device. Examples include reception and establishment of communication with a new relay device. In the event related to the position of the wireless terminal 110, the distance between the position of the wireless terminal 110 and the current position of the wireless terminal 110 when the geofence setting process was last performed is larger than a predetermined value. It may be.

  The event related to the position of the wireless terminal 110 may be that the movement detection unit 232 detects the movement from the outside to the inside of the area surrounded by the geofence 34 of the wireless terminal 110. The event related to the position of the wireless terminal 110 may be that the movement detection unit 232 detects a movement from the inside to the outside of the area surrounded by the geofence 34 of the wireless terminal 110. The geofence update event may be that the communication environment acquisition unit 250 has acquired communication environment information. The geofence update event may be the arrival of a predetermined time or the passage of a predetermined time.

  The area selection unit 218 selects an area for setting a geofence. The area selection unit 218 sets a geofence on the boundary line of the selected area. In the present embodiment, the area selection unit 218 receives information indicating that the event detection unit 216 has detected a geofence update event from the event detection unit 216. When the area selection unit 218 receives information indicating the detection of the geofence update event from the event detection unit 216, the area selection unit 218 selects one or more areas where the geofence should be set from a plurality of predetermined areas. .

  For example, the area selection unit 218 is based on the position of the wireless terminal 110 or the current position of the wireless terminal 110 at the time of detecting the geofence update event, and the respective positions of the plurality of areas stored in the area information storage unit 212. Select one or more areas where the geofence should be set. The area selection unit 218 may select one or more areas where the geofence should be set from one or more areas where the communication environment information should be acquired with reference to the communication environment information acquisition conditions in each area. .

  In one embodiment, the area selection unit 218 selects a predetermined number of areas as the area where the geofence 32 is to be set. Further, the area selection unit 218 selects a predetermined number of areas as the areas where the geofence 34 is to be set. The number of areas where the geofence 34 should be set may be the same as the number of areas where the geofence 32 should be set, or may be larger than the number of areas where the geofence 32 should be set. In another embodiment, the area selection unit 218 sets the geofence 32 or the geofence 34 as an area to be set, and the position of the wireless terminal 110 or the current position of the wireless terminal 110 at the time of detecting the geofence update event, An area whose distance from the center is smaller than a predetermined value is selected. The area selection unit 218 sets the geofence 32 or the geofence 34 as an area to be set, and sets the minimum distance between the position of the wireless terminal 110 or the current position of the wireless terminal 110 when the geofence update event is detected and the boundary of the area. You may select the area whose value is smaller than a predetermined value.

  The position information acquisition unit 220 acquires position information of the wireless terminal 110. The position information acquisition unit 220 transmits the acquired position information to the terminal control unit 230. The position information acquisition unit 220 may acquire information indicating the accuracy of the position information together with the position information. The position information acquisition unit 220 may transmit information indicating the accuracy of the position information to the terminal control unit 230.

  The low-accuracy positioning unit 222 acquires the position information of the wireless terminal 110 by a positioning method that has lower positioning accuracy than the high-accuracy positioning unit 224. For example, the low-accuracy positioning unit 222 acquires the position information of the wireless terminal 110 using the position information of the relay device 12 that relays communication of the wireless terminal 110.

  The high-accuracy positioning unit 224 acquires the position information of the wireless terminal 110 by a positioning method with higher positioning accuracy than the low-accuracy positioning unit 222. For example, the high-accuracy positioning unit 224 acquires position information of the wireless terminal 110 using a GPS signal or a short-range wireless signal.

  The terminal control unit 230 controls each unit of the wireless terminal 110. For example, the terminal control unit 230 controls position information acquisition processing by the low-accuracy positioning unit 222 and the high-accuracy positioning unit 224. The terminal control unit 230 controls communication environment information acquisition processing by the communication environment acquisition unit 250.

  The movement detection unit 232 detects the movement of the wireless terminal 110. In the present embodiment, the movement detection unit 232 detects that the movement route of the wireless terminal 110 intersects with the geofence. For example, the movement detection unit 232 detects that the wireless terminal 110 has moved from the outside to the inside of the area surrounded by the geofence 32 based on the position information acquired by the low-accuracy positioning unit 222. The movement detection unit 232 detects that the wireless terminal 110 has moved from the inside to the outside of the area surrounded by the geofence 32 based on the position information acquired by the low-accuracy positioning unit 222. The movement detection unit 232 detects that the wireless terminal 110 has moved from the outside to the inside of the area surrounded by the geofence 34 based on the position information acquired by the high-precision positioning unit 224. The movement detection unit 232 detects that the wireless terminal 110 has moved from the inside to the outside of the area surrounded by the geofence 34 based on the position information acquired by the high-precision positioning unit 224.

  When the movement detection unit 232 detects that the movement route of the wireless terminal 110 intersects with the geofence, the movement detection unit 232 displays information indicating the fact of the geofence setting unit 210, the positioning control unit 234, and the communication environment acquisition unit 250. Send to at least one. For example, when the movement detection unit 232 detects that the wireless terminal 110 has moved from the outside to the inside of the area surrounded by the geofence 32, the movement detection unit 232 transmits information indicating that fact to the positioning control unit 234. When the movement detection unit 232 detects that the wireless terminal 110 has moved from the outside to the inside of the area surrounded by the geofence 34, the movement detection unit 232 transmits information indicating that fact to the positioning control unit 234. When the movement detection unit 232 detects that the wireless terminal 110 has moved from the outside to the inside of the area surrounded by the geofence 34, the movement detection unit 232 may transmit information indicating that to the geofence setting unit 210.

  The positioning control unit 234 controls the position information acquisition unit 220. The positioning control unit 234 may control the position information acquisition unit 220 based on the information received from the movement detection unit 232. The positioning control unit 234 may control the position information acquisition unit 220 based on information acquired from the position information acquisition unit 220 and indicating the accuracy of the position information.

  In one embodiment, the positioning control unit 234 causes the high-precision positioning unit 224 to acquire position information when receiving information indicating that the wireless terminal 110 has moved from the outside of the area surrounded by the geofence 32 to the inside. . In another embodiment, the positioning control unit 234 acquires position information by the high-precision positioning unit 224 when receiving information indicating that the wireless terminal 110 has moved from the outside to the inside of the area surrounded by the geofence 32. Increase frequency.

  The positioning control unit 234 may cause the low-accuracy positioning unit 222 to acquire position information when receiving information indicating that the wireless terminal 110 has moved from the inside to the outside of the area surrounded by the geofence 32. At this time, the positioning control unit 234 may disable or turn off the function of the high-precision positioning unit 224. The positioning control unit 234 may reduce the frequency of acquisition of position information by the high-precision positioning unit 224 as compared to the case where the wireless terminal 110 exists inside the area surrounded by the geofence 32.

  Similarly, the positioning control unit 234 causes the low-accuracy positioning unit 222 to acquire position information until it receives information indicating that the wireless terminal 110 has moved from the outside of the area surrounded by the geofence 32 to the inside. Also good. During this time, the positioning control unit 234 may disable or turn off the function of the high-precision positioning unit 224. The positioning control unit 234 may reduce the frequency of acquisition of position information by the high-precision positioning unit 224 as compared to the case where the wireless terminal 110 exists inside the area surrounded by the geofence 32.

  The positioning control unit 234 may select a positioning module to be used as each of the low-accuracy positioning unit 222 and the high-accuracy positioning unit 224 from two or more positioning modules. The positioning control unit 234 is a positioning module used as each of the low-accuracy positioning unit 222 and the high-accuracy positioning unit 224 based on information indicating the accuracy of the position information acquired by the low-accuracy positioning unit 222 and the high-accuracy positioning unit 224. May be selected. As a result, for example, a positioning module that acquires position information of the wireless terminal 110 using a GPS signal is used as the high-precision positioning unit 224 when the wireless terminal 110 exists outdoors, and the wireless terminal 110 exists indoors. In some cases, the low-precision positioning unit 222 may be used.

  The movement speed acquisition unit 240 acquires movement speed information indicating the movement speed of the wireless terminal 110. The movement speed acquisition unit 240 transmits the acquired movement speed information to the communication environment acquisition unit 250. The movement speed acquisition unit 240 may transmit the acquired movement speed information to the terminal control unit 230. An example of the moving speed acquisition unit 240 is an acceleration sensor.

  The communication environment acquisition unit 250 acquires communication environment information. For example, the communication environment acquisition unit 250 acquires communication environment information when it is detected that the wireless terminal 110 has moved from the outside to the inside of the area surrounded by the geofence 34. The communication environment acquisition unit 250 detects that the wireless terminal 110 has moved from the outside to the inside of the area surrounded by the geofence 34, and when the moving speed of the wireless terminal 110 is smaller than a predetermined value, Environmental information may be acquired.

  In the present embodiment, the communication environment acquisition unit 250 receives information indicating that the movement of the wireless terminal 110 from the outside to the inside of the area surrounded by the geofence 34 is detected from the movement detection unit 232. Further, the communication environment acquisition unit 250 acquires the movement speed information of the wireless terminal 110 from the movement speed acquisition unit 240. The communication environment acquisition unit 250 determines whether or not the moving speed of the wireless terminal 110 is smaller than a predetermined value based on the moving speed information.

  In the present embodiment, the communication environment acquisition unit 250 refers to the area information storage unit 212 and extracts communication environment information acquisition conditions in an area surrounded by the geofence 34. The communication environment acquisition unit 250 acquires communication environment information in an area surrounded by the geofence 34 according to the extracted acquisition conditions.

  For example, the communication environment acquisition unit 250 repeats the communication environment information acquisition process in the area surrounded by the geofence 34 as many times as indicated by the extracted acquisition conditions. The communication environment acquisition unit 250 may repeat the communication environment information acquisition process in the area surrounded by the geofence 34 at a frequency indicated by the extracted acquisition condition.

  When the wireless terminal 110 exists outside the area surrounded by the geofence 34, the communication environment acquisition unit 250 may acquire communication environment information according to a predetermined acquisition condition. The communication environment acquisition unit 250 may not acquire the communication environment information when the wireless terminal 110 exists outside the area surrounded by the geofence 34.

  The communication environment acquisition unit 250 associates the communication environment information indicating the communication environment of the wireless terminal 110 with the position information indicating the position of the wireless terminal 110 when the communication environment information is acquired, and Send. The communication environment acquisition unit 250 includes (a) communication environment information indicating the communication environment of the wireless terminal 110, (b) position information indicating the position of the wireless terminal 110 when the communication environment information is acquired, and (c). The terminal identification information of the wireless terminal 110 and at least one of the acquisition time information indicating the time or time segment when the communication environment information is acquired may be associated with each other and transmitted to the information collection server 120. Examples of time divisions include time zones, days of the week, holidays, weekdays, and combinations thereof. The communication environment acquisition unit 250 may transmit log information associated with at least communication environment information and position information to the information collection server 120.

  The timing at which the communication environment acquisition unit 250 transmits log information or the like is not particularly limited. The communication environment acquisition unit 250 may transmit log information or the like to the information collection server 120 while the wireless terminal 110 exists in the area surrounded by the geofence 34. The communication environment acquisition unit 250 may transmit log information or the like to the information collection server 120 after the wireless terminal 110 leaves the area surrounded by the geofence 32 or the geofence 34.

  FIG. 3 schematically shows an example of the information collection server 120. In the present embodiment, the information collection server 120 includes a log information acquisition unit 310, a log information storage unit 320, and a server control unit 330. The server control unit 330 includes a log information monitoring unit 332, a control signal generation unit 334, and a control signal transmission unit 336. The log information acquisition unit 310 may be an example of a collection unit. The control signal generation unit 334 may be an example of a determination unit. The control signal transmission unit 336 may be an example of a transmission unit.

  The log information acquisition unit 310 acquires one or more log information from each of the one or more wireless terminals 110. The log information storage unit 320 stores the log information acquired by the log information acquisition unit 310. The server control unit 330 controls each unit of the information collection server 120. The log information monitoring unit 332 monitors log information.

  In one embodiment, the log information monitoring unit 332 monitors the number of communication environment information for each area. For example, the log information monitoring unit 332 refers to the log information storage unit 320 and counts the number of communication environment information in a predetermined period for each area. When the number of communication environment information in a specific area exceeds a predetermined value, the log information monitoring unit 332 notifies the control signal generation unit 334 of area identification information of the area. The log information monitoring unit 332 may notify the area identification information and information indicating that the number of communication environment information in the area has reached a predetermined value or more.

  In another embodiment, the log information monitoring unit 332 monitors the increasing speed of the number of communication environment information for each area. For example, the log information monitoring unit 332 refers to the log information storage unit 320 and calculates the rate of increase in the number of communication environment information for a predetermined period for each area. When the increasing speed of the number of communication environment information in a specific area becomes equal to or greater than a predetermined value, the log information monitoring unit 332 notifies the control signal generation unit 334 of area identification information of the area. The log information monitoring unit 332 may notify the area identification information and information indicating that the increase rate of the number of communication environment information in the area is equal to or higher than a predetermined value. The increasing speed of the number of communication environment information in a predetermined period is calculated, for example, by dividing the number of communication environment information increased in a predetermined period by the time of the predetermined period.

  The conditions for the log information monitoring unit 332 to notify the control signal generation unit 334 of information are not limited to the above conditions. When the number of communication environment information in a specific area is equal to or greater than a predetermined value and the rate of increase in the number of communication environment information is equal to or greater than a predetermined value, the log information monitoring unit 332 The identification information may be notified to the control signal generation unit 334.

  The control signal generation unit 334 generates a control signal that controls the wireless terminal 110. The control signal generation unit 334 may determine the acquisition condition of the communication environment information in at least one area out of one or more predetermined areas. The communication environment information acquisition condition is a condition or setting relating to at least one of the type of communication environment information to be acquired, the acquisition position of the communication environment information, the time or time segment for acquiring the communication environment information, and the number of acquisitions of the communication environment information. It may be.

  For example, the control signal generation unit 334 may determine whether to change the communication environment information acquisition condition based on the information notified from the log information monitoring unit 332. The control signal generation unit 334 may determine the change of the acquisition condition of the communication environment information in at least one area among the one or more predetermined areas. In one embodiment, the control signal generation unit 334 includes information indicating that at least one of the number of communication environment information and the increase rate of the number of communication environment information in a specific area is equal to or greater than a predetermined value. When received from the log information monitoring unit 332, it is determined to change the acquisition condition of the communication environment information.

  In another embodiment, the control signal generation unit 334 newly determines a communication environment information acquisition condition at a predetermined time or at a predetermined time interval. For example, the control signal generation unit 334 includes at least one of the target value of the acquisition number of communication environment information, the acquisition number at that time, the increase rate of the acquisition number at that time, and the increase rate of the acquisition number in the past. Based on the above, the acquisition condition of the communication environment information in at least one of the predetermined one or more areas is newly determined. The control signal generation unit 334 compares the newly determined acquisition condition and the current acquisition condition, and if both are different, the communication environment information in at least one of the predetermined one or more areas The change of the acquisition condition may be determined.

  The control signal generation unit 334 may determine to change the acquisition condition of the specific wireless terminal 110. The specific wireless terminal 110 is based on the current position of the wireless terminal 110, the position of the wireless terminal 110 at a specific time or period, the model of the wireless terminal 110, the OS of the wireless terminal 110, an application installed in the wireless terminal 110, and the like. May be determined. Thereby, for example, even when the control signal is transmitted by the PUSH notification, whether or not the wireless terminal is to be controlled by the control signal on the side of the wireless terminal that has received the control signal. Can be determined.

  The control signal generation unit 334 generates a control signal indicating the determined acquisition condition. The control signal may be a signal instructing to change the acquisition condition determined by the control signal generation unit 334. The control signal generation unit 334 transmits the generated control signal to the control signal transmission unit 336.

  In the present embodiment, the control signal generation unit 334 determines the acquisition condition of communication environment information in at least one area out of one or more predetermined areas based on information received from the log information monitoring unit 332. . For example, the control signal generation unit 334 includes at least one of the number of communication environment information to be acquired in each area, the number of communication environment information acquired in each area, and the increase rate of the number of communication environment information in each area. Based on the above, the acquisition condition of the communication environment information of each area is determined.

  In one embodiment, when the number of communication environment information acquired in a specific area is smaller than the set value of the number of communication environment information to be acquired in the area, the control signal generation unit 334 Decide to increase the frequency of acquisition of communication environment information. In another embodiment, the control signal generation unit 334 determines the area when the number of pieces of communication environment information acquired in the specific area is equal to or larger than the set value of the number of pieces of communication environment information to be acquired in the area. It is decided to stop the acquisition of the communication environment information or to narrow the geographical range of the area.

  In another embodiment, the control signal generation unit 334 includes the number of communication environment information to be acquired in a specific area in a predetermined first period and one or more wireless terminals 110 in the second period. Based on at least one of the number of communication environment information acquired in the area and the rate of increase in the number of communication environment information, the number of acquisitions and the acquisition frequency of the communication environment information in the area in the third period, and the area To change at least one of the geographical ranges of The second period may be included in the first period, or may be a period before the first period. The third period may be included in the first period. The third period may be a period after the second period. The second period and the third period may be a predetermined period.

  The control signal transmission unit 336 transmits the control signal generated by the control signal generation unit 334 to one or more wireless terminals 110. The control signal transmission unit 336 may transmit a control signal to all the wireless terminals managed by the information collection system 100, and a control signal may be transmitted to a part of one or more wireless terminals managed by the information collection system 100. May be sent. The method for transmitting the control signal is not particularly limited. For example, the control signal transmission unit 336 transmits a control signal by a PUSH notification.

  FIG. 4 schematically shows an example of the data table 400. In the present embodiment, the data table 400 stores an area ID 410, an area name 420, an area position 430, and the communication environment information acquisition count 440 in the area in association with each other. At least one of the area ID 410 and the area name 420 may be an example of area identification information. The number of acquisition times 440 may be an example of an acquisition condition for communication environment information.

  In the present embodiment, the area position 430 is expressed using the center position 432 and the radius 434. The center position 432 is specified by, for example, latitude and longitude. The center position 432 may be specified by latitude, longitude, and altitude. The center position 432 may be specified by information identifying an address or a facility. When the shape of the area is a polygon, the area position 430 may be specified by the latitude and longitude of each vertex of the polygon, or the latitude, longitude, and altitude. The area position 430 may be specified by information identifying the address or facility of each vertex of the polygon.

  According to another embodiment, the area position 430 is specified by a section (which may be referred to as a regional mesh or the like) obtained by subdividing a region into unit regions having a predetermined size and shape. For example, the area position 430 is specified by identification information of a mesh at least a part of which is included in the area position 430, identification information of a mesh including at least a part of the area position 430, and the like.

  In FIG. 4, when the communication environment information acquisition count 440 in the area is not particularly set, “None” is indicated. When the communication environment information acquisition count 440 in the area is “0”, the record may be deleted from the data table 400. The areas indicated by area IDs A0001, A0003, A0005, and A0007 may have the same configuration as the area surrounded by the geofence 32, and may be an example of the first area. The areas indicated by area IDs A0002, A0004, A0006, and A0008 may have the same configuration as the area surrounded by the geofence 34, and may be an example of a second area.

  In this embodiment, the case where the data table 400 stores the area ID 410 and the communication environment information acquisition count 440 in the area in association with each other has been described. However, the data table 400 is not limited to this embodiment. In another embodiment, instead of the communication environment information acquisition count 440 in the area or together with the communication environment information acquisition count 440 in the area, the communication environment information acquisition frequency in the area corresponds to the area ID 410. You may store it.

  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. In addition, the matters described in the specific embodiment can be applied to other embodiments within a technically consistent range. 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 the output 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 communication network, 12 relay device, 20 station, 32 geofence, 34 geofence, 100 information collection system, 110 wireless terminal, 120 information collection server, 210 geofence setting unit, 212 area information storage unit, 214 area information update unit 216 event detection unit, 218 area selection unit, 220 position information acquisition unit, 222 low accuracy positioning unit, 224 high accuracy positioning unit, 230 terminal control unit, 232 movement detection unit, 234 positioning control unit, 240 movement speed acquisition unit, 250 communication environment acquisition unit, 310 log information acquisition unit, 320 log information storage unit, 330 server control unit, 332 log information monitoring unit, 334 control signal generation unit, 336 control signal transmission unit, 400 data table, 410 area ID, 20 area name 430 area position, 432 the center position, 434 radius 440 acquires the number of times

Claims (15)

A computer provided in the wireless terminal;
A first position information acquisition unit that acquires the first position information of the first positioning accuracy indicating the position of the wireless terminal;
A second position information acquisition unit for acquiring second position information indicating a position of the wireless terminal and having a second positioning accuracy higher than the first positioning accuracy;
A control unit that causes the second position information acquisition unit to acquire the second position information when it is detected that the wireless terminal has moved from the outside to the inside of the first area based on the first position information; And communication environment information indicating a communication environment of the wireless terminal when it is detected that the wireless terminal has moved from the outside to the inside of the second area in the first area based on the second position information. A communication environment information acquisition unit to acquire,
Acquisition of the communication environment information of the second area based on at least one of the number of communication environment information of the second area and the increase rate of the number of communication environment information of the second area acquired by another wireless terminal A setting section for setting the frequency,
Program to function as. Said computer further
An event detector for detecting a predetermined event; and
A selection unit for selecting one or more first areas from a plurality of predetermined areas when the event detection unit detects the predetermined event;
To function as
The program according to claim 1. A computer provided in the wireless terminal;
An event detector for detecting a predetermined event;
A selection unit that selects one or more first areas from a plurality of predetermined areas when the event detection unit detects the predetermined event;
A first position information acquisition unit that acquires the first position information of the first positioning accuracy indicating the position of the wireless terminal;
A second position information acquisition unit for acquiring second position information indicating a position of the wireless terminal and having a second positioning accuracy higher than the first positioning accuracy;
A control unit that causes the second position information acquisition unit to acquire the second position information when it is detected that the wireless terminal has moved from the outside to the inside of the first area based on the first position information. And communication environment information indicating a communication environment of the wireless terminal when it is detected that the wireless terminal has moved from the outside to the inside of the second area in the first area based on the second position information. A communication environment information acquisition unit,
Program to function as. The selection unit is based on a distance between the position of the wireless terminal when the event detection unit detects the predetermined event or the current position of the wireless terminal and each of the plurality of predetermined areas. Selecting the one or more first areas;
The program according to claim 2 or claim 3. Said computer further
A program for functioning as a moving speed information acquisition unit that acquires moving speed information indicating the moving speed of the wireless terminal,
The communication environment information acquisition unit detects that the wireless terminal has moved from the outside to the inside of the second area, and when the moving speed indicated by the moving speed information is smaller than a predetermined value, Obtaining the communication environment information;
The program according to any one of claims 1 to 4. The first location information acquisition unit acquires the first location information using location information of a relay device that relays communication of the wireless terminal,
The second position information acquisition unit acquires the second position information using a GPS signal or a short-range wireless signal.
The program according to any one of claims 1 to 5. Said computer further
Acquisition of the communication environment information of the second area based on at least one of the number of communication environment information of the second area and the increase rate of the number of communication environment information of the second area acquired by another wireless terminal In order to function as a setting unit for setting at least one of the number of times, the acquisition frequency of the communication environment information of the second area, and the geographical range of the second area,
The program according to any one of claims 1 to 6. The setting unit determines whether the communication environment information in the second area needs to be acquired, the frequency of acquisition of the communication environment information in the second area, and the geographical range of the second area at a predetermined timing. At least one is set to a predetermined condition;
The program according to claim 7. A wireless terminal,
A first position information acquisition unit for acquiring first position information of the first positioning accuracy indicating the position of the wireless terminal;
A second position information acquisition unit for acquiring second position information of second positioning accuracy indicating the position of the wireless terminal;
A control unit that causes the second position information acquisition unit to acquire the second position information when it is detected that the wireless terminal has moved from the outside to the inside of the first area based on the first position information; ,
Based on the second location information, when it is detected that the wireless terminal has moved from the outside to the inside of the second area in the first area, communication environment information indicating the communication environment of the wireless terminal is acquired. A communication environment information acquisition unit,
Acquisition of the communication environment information of the second area based on at least one of the number of communication environment information of the second area and the increase rate of the number of communication environment information of the second area acquired by another wireless terminal A setting section for setting the frequency,
With
The second positioning accuracy is higher than the first positioning accuracy,
Wireless terminal. A wireless terminal,
An event detection unit for detecting a predetermined event;
When the event detection unit detects the predetermined event, a selection unit that selects one or more first areas from a plurality of predetermined areas;
A first position information acquisition unit for acquiring first position information of the first positioning accuracy indicating the position of the wireless terminal;
A second position information acquisition unit for acquiring second position information of second positioning accuracy indicating the position of the wireless terminal;
A control unit that causes the second position information acquisition unit to acquire the second position information when it is detected that the wireless terminal has moved from the outside to the inside of the first area based on the first position information. When,
Based on the second location information, when it is detected that the wireless terminal has moved from the outside to the inside of the second area in the first area, communication environment information indicating the communication environment of the wireless terminal is acquired. A communication environment information acquisition unit,
With
The second positioning accuracy is higher than the first positioning accuracy,
Wireless terminal. A moving speed information acquisition unit for acquiring moving speed information indicating the moving speed of the wireless terminal;
The communication environment information acquisition unit detects that the wireless terminal has moved from the outside to the inside of the second area, and when the moving speed indicated by the moving speed information is smaller than a predetermined value, Obtaining the communication environment information;
The wireless terminal according to claim 9 or 10. One or more wireless terminals;
An information collecting device;
With
The information collecting device includes:
A collection unit that collects communication environment information acquired by the one or more wireless terminals and indicating a communication environment of a predetermined area;
Based on the number of the communication environment information to be acquired in the area, and at least one of the number of the communication environment information acquired in the area and the increasing speed of the number of the communication environment information in the area, the area A determination unit that determines a change in at least one setting of the communication environment information acquisition count in the area, the acquisition frequency of the communication environment information in the area, and a geographical range of the area;
A transmission unit that transmits a control signal instructing change of the at least one setting determined by the determination unit to at least a part of the one or more wireless terminals;
Have
Each of the one or more wireless terminals is the wireless terminal according to claim 9 or claim 10,
Information collection system. One or more wireless terminals;
And information collection device,
With
Each of the one or more wireless terminals is
A first position information acquisition unit for acquiring first position information of the first positioning accuracy indicating the position of the wireless terminal;
A second position information acquisition unit for acquiring second position information of the second positioning accuracy indicating the position of the wireless terminal;
A control unit that causes the second position information acquisition unit to acquire the second position information when it is detected that the wireless terminal has moved from the outside to the inside of the first area based on the first position information; ,
Based on the second position information, when it is detected that the wireless terminal has moved from the outside to the inside of the second area in the first area, communication environment information indicating the communication environment of the wireless terminal is acquired. A communication environment information acquisition unit,
Have
The second positioning accuracy, the positioning accuracy than the first positioning accuracy rather high,
The information collecting device includes:
A collection unit that collects the communication environment information acquired by each of the one or more wireless terminals;
Based on the number of the communication environment information to be acquired in the area, and at least one of the number of the communication environment information acquired in the area and the increasing speed of the number of the communication environment information in the area, the area A determination unit for determining a change in the setting of the acquisition frequency of the communication environment information in
A transmission unit that transmits a control signal instructing change of the at least one setting determined by the determination unit to at least a part of the one or more wireless terminals;
Comprising
Information collection system. The determination unit acquires the communication environment information in the area when the number of the communication environment information acquired in the area is equal to or greater than a set value of the number of the communication environment information to be acquired in the area. Decide to stop or to narrow the geographical range of the area,
The information collection system according to claim 13 . The determination unit acquires the communication environment information in the area when the number of the communication environment information acquired in the area is smaller than a set value of the number of the communication environment information to be acquired in the area. Decide to increase the frequency of,
The information collection system according to claim 13 or claim 14 .