JP5560968B2 - Server, method and program for calculating wireless communication quality measurement point - Google Patents

Description

  The present invention relates to a server for calculating a measurement point of wireless communication quality in a mobile phone service area, a method thereof, and a program thereof.

  Mobile phone carriers need to be able to perform voice calls and data communications without problems in a vast service area, and it is necessary to grasp the communication quality and identify and improve degradation points in a vast service area.

  For this reason, a periodic travel survey is performed by a measurement vehicle that measures the communication quality indicated by the electric field strength of the radio wave, the antenna angle or output is adjusted based on the survey results, and the base station facility or antenna facility is further adjusted. Measures such as adding more were necessary.

  Specifically, a field survey is carried out by installing a field strength measuring device, interference level measuring device and GPS (Global Positioning System) positioning device on a dedicated vehicle for measuring communication quality in a vast service area. ing.

  However, in the communication quality measurement by this method, it is not possible to measure the inside of a building, an underground mall, a subway, or the like where measurement equipment cannot be carried.

  Therefore, a location where GPS positioning can be performed by a method of measuring communication quality using position information and radio wave information obtained by a mobile phone terminal equipped with a GPS positioning function, regardless of such a measurement vehicle. It is considered to measure communication quality in

  However, even with a communication quality measurement method using information obtained by a mobile terminal equipped with a GPS positioning function, the location may not be specified indoors or underground where radio waves from GPS satellites cannot be received.

  Also, the GPS positioning method requires reception of radio waves from multiple satellites, but it may not be possible to specify the location at points where it is difficult to receive radio waves from multiple satellites, such as a valley in a building. .

  As described above, when the radio wave from the GPS satellite cannot be received, the communication quality value when the communication quality is attenuated below the lower threshold value is stored in the communication quality storage unit of the portable terminal, and the communication quality is lower threshold value. The measurement point when attenuated below was estimated from the point where the GPS position measurement of the mobile phone terminal was possible. For this reason, when moving a long distance by a subway or the like from a location where positioning by a GPS satellite was possible, it is difficult to specify the location where the communication quality value could be stored.

  Therefore, Patent Document 1 discloses an invention of a mobile phone type receiving apparatus that grasps the current position using a geomagnetic sensor that detects geomagnetism, a motion sensor that detects gravity, acceleration, and the like, and simultaneously obtains the quality of radio signal reception. Has been.

JP 2008-042628 A

  However, the invention of the mobile phone-type receiving device disclosed in Patent Document 1 does not use the GPS position measurement for the current position, the geomagnetic sensor for detecting geomagnetism, the motion sensor for detecting gravity, acceleration, etc. Therefore, there is a problem that it is difficult to determine an accurate current position.

  Therefore, the present invention provides a server, a system, a mobile phone terminal, a method, and a program capable of accurately obtaining wireless communication quality deterioration information, which is information in which wireless communication quality is deteriorated or wireless communication is interrupted. The purpose is to provide.

  According to the present invention, GPS position / time information that associates the time at which the mobile phone terminal receives the signal with the latitude and longitude calculated from signals received from a GPS (Global Positioning System) satellite group, and the mobile phone terminal measures A position information deriving unit for deriving a movement path of the mobile phone terminal by acquiring acceleration / geomagnetic / time information associating acceleration and geomagnetism with the time when the acceleration and the geomagnetism are measured, and the mobile phone Radio communication quality / time information in which the electric field intensity and interference level measured by the terminal are associated with the time when the electric field intensity and the interference level were measured is acquired from the mobile phone terminal, and the radio communication quality / time information is By associating the time with the travel route, it is information that identifies the point where the wireless communication quality deteriorates or the wireless communication is interrupted. A wireless communication quality deterioration information deriving unit for deriving certain wireless communication quality deterioration information, wherein the position information deriving unit starts from the latitude and longitude calculated from positioning by GPS, and the acceleration / geomagnetic / time information A server for calculating a wireless communication quality measurement point, wherein the moving path is derived by time-integrating the acceleration included in the moving direction along the moving direction indicated by the acceleration / geomagnetic / time information. Provided.

In addition, according to the present invention, a GPS receiving function unit that calculates latitude and longitude by receiving signals from a GPS satellite group, an acceleration sensor function unit that measures acceleration, a geomagnetic sensor function unit that measures geomagnetism, and an electric field strength. A cellular phone terminal having an electric field strength detection function unit for measuring and an interference level detection function unit for measuring an interference level , wherein the time at which a signal from the GPS satellite group is received at the latitude and longitude calculated by the GPS reception function unit The GPS position / time information recording unit that records the GPS position / time information in association with each other, and the acceleration and the geomagnetism measured by the acceleration and the geomagnetism measured by the acceleration sensor function unit and the geomagnetic sensor function unit, respectively. Accelerating / geomagnetic / time information recording unit for recording acceleration / geomagnetic / time information in association with each other Wireless communication quality / time information recorded by associating the time when the electric field intensity and the interference level were measured with the electric field intensity and the interference level measured by the degree detection function unit and the interference level detection function unit, respectively. A cellular phone terminal further comprising: a time information recording unit .

  Furthermore, according to the present invention, the GPS position / time information that associates the time at which the mobile phone terminal receives the signal with the latitude and longitude calculated from the signals received from the GPS (Global Positioning System) satellite group, and the mobile phone terminal Position information deriving step for obtaining acceleration / geomagnetic / time information in which the acceleration and geomagnetism are measured and the acceleration / geomagnetic / time information associated with the measured acceleration and geomagnetism from the cellular phone terminal and deriving the movement path of the cellular phone terminal; Radio communication quality / time information in which the electric field intensity and interference level measured by the mobile phone terminal are associated with the time when the electric field intensity and the interference level are measured is acquired from the mobile phone terminal, and the radio communication quality / time information is acquired. By associating the time with the travel route, it is possible to identify a point where wireless communication quality deteriorates or wireless communication is interrupted. A wireless communication quality deterioration information deriving step for deriving wireless communication quality deterioration information, which is defined information, and in the position information deriving step, the acceleration calculated from the latitude and longitude calculated from positioning by GPS A method is provided in which the movement path is derived by time-integrating the acceleration included in the geomagnetism / time information along a movement direction indicated by the acceleration / geometry / time information.

  Furthermore, according to the present invention, the GPS position / time information that associates the time at which the mobile phone terminal receives the signal with the latitude and longitude calculated from the signals received from the GPS (Global Positioning System) satellite group, and the mobile phone terminal A position information deriving unit that obtains acceleration / geomagnetic / time information that associates the measured acceleration and geomagnetism with the time when the acceleration and the geomagnetism are measured, from the mobile phone terminal, and derives a movement path of the mobile phone terminal; Radio communication quality / time information in which the electric field intensity and interference level measured by the mobile phone terminal are associated with the time when the electric field intensity and the interference level are measured is acquired from the mobile phone terminal, and the radio communication quality / time information is acquired. By associating the time with the travel route, the wireless communication quality deteriorated or the point where the wireless communication was interrupted was specified. A wireless communication quality deterioration information deriving unit for deriving wireless communication quality deterioration information, which is information, and the position information deriving unit starts from the latitude and longitude calculated from positioning by GPS and uses the acceleration, geomagnetism / A wireless communication quality measurement point is calculated by deriving the moving path by time-integrating the acceleration included in the time information along a moving direction indicated by the acceleration / geomagnetic / time information. A program for causing a computer to function as a server is provided.

  According to the present invention, since the travel route is derived starting from the latitude and longitude calculated from the positioning by GPS, the wireless communication quality deterioration information, which is information that the wireless communication quality deteriorates or the wireless communication is interrupted, is obtained. It can be obtained accurately.

1 is a configuration diagram of a communication system of a mobile phone terminal according to a first embodiment of the present invention. It is a functional block diagram which shows the structure of the mobile telephone terminal which concerns on the 1st Embodiment of this invention. It is explanatory drawing which shows the condition where the mobile telephone terminal which concerns on the 1st Embodiment of this invention collects wireless communication quality information. It is a functional block diagram which shows the structure of the positional infomation / radio wave information analysis server which concerns on the 1st Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Here, FIG. 1 is a configuration diagram of the communication system of the mobile phone terminal according to the first embodiment of the present invention.

  In FIG. 1, the mobile phone terminal 101 executes signal reception from the GPS satellite group 105 at a constant cycle and records position information of latitude and longitude. As will be described later, the cellular phone terminal 101 includes a geomagnetic sensor function unit and an acceleration sensor function unit. The geomagnetic sensor detects geomagnetism, and the acceleration sensor detects acceleration (including gravity).

  In addition, the mobile phone terminal 101 in the mobile phone service area 106 measures the electric field strength and interference level of the radio wave from the base station 102 and records it as radio wave information. In FIG. 1, the position information / radio wave information analysis server 104 receives GPS position information, acceleration sensor information, geomagnetic sensor information, and radio wave information from the mobile phone terminal 101 and the mobile phone terminal 101. Data is collected from a base station 102 that performs wireless communication via a control signal network 103 that performs wired or wireless communication between the base station 102 and the position information / radio wave information analysis server 104.

  FIG. 2 is a functional block diagram showing the configuration of the mobile phone terminal according to the first embodiment of the present invention.

  In FIG. 2, a mobile phone terminal 211 includes a GPS reception function unit 202, a GPS position / time information record, in addition to a mobile phone basic function unit 201 having basic functions of a mobile phone such as a call function and transmission / reception of mail. Unit 203, electric field strength detection function unit 204, interference level detection function unit 205, acceleration sensor function unit 206, geomagnetic sensor function unit 207, acceleration / geomagnetic / time information recording unit 208, wireless communication quality / time information recording unit 209 and high An accuracy clock 210 is included.

  The GPS reception function unit 202 receives signals from the GPS satellite group 105 at a constant cycle, and calculates latitude / longitude information based on these signals.

  The GPS position / time information recording unit 203 associates the latitude / longitude information calculated by the GPS reception function unit 202 with the time information that is the time when the signal is received from the GPS satellite group 105, and records the information as GPS position / time information. This time information is based on the time by the high precision clock 210, but may be calculated based on a signal from the GPS satellite group 105.

  The acceleration sensor function unit 206 measures the acceleration from the point and the time point when the GPS position measurement is successful.

  The geomagnetic sensor function unit 207 also measures the geomagnetism from the point and time point starting from the point and time point when the GPS position measurement is successful.

  The acceleration and geomagnetism information measured by the acceleration sensor function unit 206 and the geomagnetic sensor function unit 207 are associated with time information that is the time at which the acceleration and geomagnetism are measured, and the acceleration and geomagnetism / time information recording unit 208 are accelerated.・ Recorded as geomagnetism / time information. This time information is based on the time by the high precision clock 210. The time measured by the high-accuracy timepiece 210 may be initialized with the time calculated based on the signal from the GPS satellite group 105.

  In FIG. 2, the information measured by the electric field strength detection function unit 204 and the interference level detection function unit 205 is wirelessly transmitted to the wireless communication quality / time information recording unit 209 together with the time information of the high-precision clock 210 at a constant cycle. Recorded as communication quality / time information.

  FIG. 3 is an explanatory diagram showing a situation in which the mobile phone terminal according to the first embodiment of the present invention collects wireless communication quality / time information.

  In FIG. 3, the mobile phone terminal 302 moves to an area where signals from the GPS satellite group 105 in the building / underground shopping street 312 do not reach as time passes, and further moves out of the building / underground shopping street 312 over time. The mobile phone terminal 303 is shown.

  In the point of the mobile phone terminal 301 in FIG. 3, it is indicated that the mobile phone service area 313 is capable of positioning based on a signal from the first GPS satellite group 309.

  The mobile phone terminal 302 in FIG. 3 indicates that the mobile phone terminal 301 has moved. This point is an area where the mobile phone terminal 302 is located inside a bulkhead indicated by a thick solid line, and the position cannot be determined by a signal from the second GPS satellite group 310, for example, in a building or underground mall It is shown that. In this area, even if it is within the range of the mobile phone service area 314 or the mobile phone service area 315, position measurement is impossible.

  The mobile phone terminal 303 in FIG. 3 indicates that the mobile phone terminal 303 has moved from the point of the mobile phone terminal 302. At this point, the mobile phone terminal 303 exists in the mobile phone service area 316 where the position can be determined by a signal from the third GPS satellite group 311.

  FIG. 4 is a functional block diagram showing a configuration of the position information / radio wave information analysis server 104 according to the first embodiment of the present invention.

  In FIG. 4, the GPS position / time information and acceleration received from the mobile phone terminal 101 via the base station and the control signal network by the location information / radio wave information analysis server 104 according to the first embodiment of the present invention. -It describes that geomagnetic / time information and wireless communication quality / time information are analyzed and stored in association with each other.

  In FIG. 4, the position information / radio wave information analysis server 104 derives position information, which is information for specifying the position of the mobile phone terminal based on the GPS position / time information 401 and the acceleration / geomagnetic / time information 402. By associating the information deriving unit 404 and the wireless communication quality / time information 403 with the position / time information derived by the position / time information deriving unit 404 with respect to time, the point where the wireless communication quality has deteriorated and the electric field strength at that point And a wireless communication quality deterioration information deriving unit 405 for deriving wireless communication quality deterioration information representing the interference level, and a storage unit 406 for storing the wireless communication quality deterioration information.

  Although the configuration of the first embodiment of the present invention has been described in detail above, the control signal network 103 in FIG. 1 is well known to those skilled in the art and is not directly related to the present invention. The description of the configuration is omitted.

[Operation of the first exemplary embodiment of the present invention]
The operation of the mobile phone terminal according to the first embodiment of the present invention will be described with reference to FIG.

  In FIG. 3, the GPS reception function unit 202 of the mobile phone terminal 301 performs signal reception from the first GPS satellite group 309 at a constant cycle by the mounted high-precision clock 210.

  The GPS reception function unit 202 calculates latitude / longitude information based on the signal received from the first GPS satellite group 309, and the GPS position information recording unit 203 uses the latitude / longitude information and the time of the high-precision clock 210. Correlate and store as GPS position / time information.

  In FIG. 3, the information measured by the acceleration sensor function unit 206 of the mobile phone terminal and the information measured by the geomagnetic sensor function unit 207 from the recording of the GPS position / time information from the period of signal reception from the GPS satellite, Furthermore, it is recorded as acceleration / geomagnetic / time information in the sensor information recording unit 208 in association with the time information of the high-precision timepiece 210 in a sufficiently short constant cycle (for example, 1/10 or less).

  In FIG. 3, the mobile phone terminal 301 starts moving from the current location after recording position / time information based on signal reception from the first GPS satellite group 309 in the GPS position / time information recording unit 203, The position is moved through the movement path 304 shown in FIG.

  In FIG. 3, the mobile phone terminal 302 at a point that has further moved from the moving point 305 indicates that the mobile phone terminal 302 has moved in the building or the space of the underground shopping street 312 that cannot receive the signal from the second GPS satellite group according to the moving route 306. Therefore, the mobile phone terminal 302 cannot receive a signal from the second GPS satellite group 310 and exists at a point where the latitude and longitude cannot be measured.

  For this reason, the acceleration measured by the acceleration sensor function unit 206 from the latitude / longitude information obtained by GPS position measurement at the point and time of the mobile phone terminal 301 before the movement is calculated by the position information / radio wave information analysis server 104 as follows. By time-integrating along the moving direction at each time during movement, the speed at each measurement time (including the direction and represented by a three-dimensional vector) is obtained, and by time-integrating the obtained speed, The movement distance at each measurement time is obtained. Here, the term “starting point” means that the point and the time point corresponding to the starting point are set to the initial values of the position and time, respectively.

  Further, based on the geomagnetism measured by the geomagnetic sensor function unit 207, the position information / radio wave information analysis server 104 performs a predetermined calculation to obtain the moving direction at each time during the movement.

  Based on the moving distance and moving direction at each measurement time, the position information / radio wave information analysis server 104 derives the movement route 304 and the movement route 306 shown in FIG. 3, and the position of the mobile phone terminal 302 at each measurement time is accurately determined. Can be calculated.

  In FIG. 3, the position of the mobile phone terminal 302 is a space between the mobile phone service areas and where the wireless communication quality is degraded or disconnected. This position is also an area where a signal from the second GPS satellite group 310 does not reach, such as in a building or an underground mall. For this reason, the position cannot be determined using the second GPS satellite group 310.

  In FIG. 3, the mobile phone terminal 302 further moves and passes the movement route 307 from the movement route 307 to move to the point of the mobile phone terminal 303. The mobile phone terminal 303 can receive a signal from the third GPS satellite group 311 and record the position information of latitude and longitude.

  FIG. 4 shows the GPS position / time information, acceleration / gemagnetism / time information, and wireless communication quality / time information stored in the mobile phone terminal collected from the mobile phone terminal via the base station 102. The flow of processing of the position information / radio wave information analysis server 104 to be processed is shown.

  The position / time information deriving unit 404 in FIG. 4 uses the above-described method based on the GPS position / time information 401 and the acceleration / geomagnetic / time information 402 notified from the mobile phone terminal at a constant cycle. Position / time information representing the position of the mobile phone terminal 302 at each measurement time in the routes 304 and 306 where the position cannot be measured is derived.

  The wireless communication quality deterioration information deriving unit 405 obtains the time when the wireless communication quality is deteriorated and the time when the wireless communication is interrupted from the wireless communication quality / time information 403. Next, the position / time information derived by the position / time information deriving unit 404 obtains the position of the mobile phone terminal at the time when the wireless communication quality deteriorates and the time when the wireless communication is not established.

  That is, the wireless communication quality deterioration information deriving unit 405 associates the wireless communication quality / time information and the position / time information with the time when the wireless communication quality is deteriorated or the time when the wireless communication is interrupted, so that the wireless communication quality is improved. Wireless communication quality deterioration information that identifies a point where deterioration or wireless communication has been interrupted is derived.

  More specifically, the wireless communication quality / time information indicates the time when the electric field strength is equal to or lower than a first threshold that is a predetermined reference or the time when the interference level is equal to or higher than a second threshold that is a predetermined reference. By extracting from the position / time information, the position of the cellular phone terminal at the same time as the time is extracted from the position / time information, thereby deriving wireless communication quality deterioration information for identifying a point where the wireless communication quality is deteriorated or the wireless communication is disconnected. Then, the derived wireless communication quality deterioration information is stored in the storage unit 406.

  As described above, in the present embodiment, the route of the mobile phone terminal is derived using the information obtained from the acceleration sensor and the geomagnetic sensor even in the region where the location of the mobile phone terminal cannot be specified using the signal reception from the GPS satellite. By doing so, since the point where the accurate wireless communication quality is observed is derived, it is possible to accurately derive the point where the wireless communication quality deteriorates or the wireless communication is interrupted from the vast mobile phone service area.

  Furthermore, in this embodiment, since the position information / radio wave information analysis server 104 performs the derivation of the route by the acceleration sensor and the geomagnetic sensor starting from the latitude and longitude after receiving the signal from the GPS satellite, Information necessary to be recorded on the telephone terminal can be kept to a minimum.

  Moreover, since the route is derived by the acceleration sensor function unit 206 and the geomagnetic sensor function unit 207 starting from the latitude and longitude after receiving the signal from the GPS satellite, the signal reception from the two adjacent GPS satellites is performed. Even if the mobile phone terminal has moved over a long distance during this period, the location of the route that was moving is accurately derived, so the point where the wireless communication quality during the movement has deteriorated can be accurately identified. There is also an effect that can be done.

[Second embodiment of the present invention]
As a second embodiment of the present invention, the basic configuration is the same as that of the first embodiment of the present invention, but the acceleration sensor and the geomagnetic sensor in the mobile phone terminal are changed.

  Specifically, the acceleration sensor is a three-axis acceleration sensor that can measure the acceleration in the three directions of the XYZ axes with one device, and the geomagnetic sensor is also a three-axis geomagnetic sensor that can measure the geomagnetism in the three directions of the XYZ axes. The movement route is derived based on the information detected by.

  As a result, the accuracy of deriving the route starting from the latitude and longitude of the GPS position measurement is increased, and the accuracy of specifying the degraded location of the wireless communication quality is increased.

  As described above, in the second embodiment of the present invention, since the sensor mounted on the mobile phone terminal is used, the wireless communication quality limited from the vast mobile phone service area as the accuracy of the sensor is improved. The effect that the degradation point of can be specified with high precision is acquired.

  The server according to the above embodiment of the present invention can be realized by hardware, but the computer reads a program for causing the computer to function as the server from a computer-readable recording medium and executes the program. Can also be realized.

  The method for calculating the wireless communication quality measurement point according to the above embodiment of the present invention can also be realized by hardware, but the computer reads the program for causing the computer to execute the method. It can also be realized by reading from a possible recording medium and executing it.

  A part or all of the above-described embodiment can be described as in the following supplementary notes, but is not limited thereto.

(Supplementary note 1) GPS position / time information that associates the time at which the mobile phone terminal receives the signal with the latitude and longitude calculated from signals received from a GPS (Global Positioning System) satellite group, and the acceleration measured by the mobile phone terminal A position information deriving unit for deriving a moving path of the mobile phone terminal by acquiring acceleration / geomagnetic / time information associating the acceleration and the time when the geomagnetism was measured with the geomagnetism from the mobile phone terminal;
Radio communication quality / time information in which the electric field intensity and the interference level measured by the mobile phone terminal are associated with the time when the electric field intensity and the interference level are measured is acquired from the mobile phone terminal, and the radio communication quality / time is obtained. A wireless communication quality deterioration information deriving unit for deriving wireless communication quality deterioration information, which is information specifying a point at which wireless communication quality deteriorates or wireless communication is interrupted, by associating information with the movement route with respect to time ,
With
The position information deriving unit uses the latitude and longitude calculated from the GPS positioning as a starting point, and the acceleration included in the acceleration / geomagnetic / time information along the moving direction indicated by the acceleration / geomagnetic / time information. A server for calculating a wireless communication quality measurement point, wherein the moving route is derived by time integration.

  (Supplementary Note 2) The wireless communication quality deriving unit is a time when the wireless communication quality is deteriorated or a time when the wireless communication is interrupted. By extracting the time when the interference level is equal to or higher than the second threshold from the wireless communication quality / time information, and extracting the position corresponding to each extracted time from the movement route, the wireless communication quality is deteriorated. Or the server according to appendix 1, wherein a point at which wireless communication is interrupted is specified.

(Supplementary Note 3) A server that calculates a wireless communication quality measurement point according to Supplementary Note 1 or 2,
A GPS reception function unit that calculates a latitude and longitude by receiving a signal from the GPS satellite group, an acceleration sensor function unit that measures the acceleration, a geomagnetic sensor function unit that measures the geomagnetism, and an electric field strength that measures the electric field strength A mobile phone terminal having a detection function unit and an interference level detection function unit for measuring the interference level;
A system for calculating a wireless communication quality measurement point.

(Appendix 4) The mobile phone terminal
A GPS position / time information recording unit that records the GPS position / time information in association with the time at which a signal from the GPS satellite group is received by the latitude and longitude calculated by the GPS reception function unit;
Acceleration / geomagnetic / time information that records the acceleration and geomagnetism / time information in association with the acceleration and the geomagnetism measured by the acceleration sensor function unit and the geomagnetic sensor function unit, respectively, and records the acceleration and the geomagnetism time. A recording section;
The wireless communication quality / time information is recorded by associating the time when the electric field strength and the interference level are measured with the electric field strength and the interference level measured by the electric field strength detection function unit and the interference level detection function unit, respectively. A wireless communication quality / time information recording unit;
The system according to appendix 3, further comprising:

  (Supplementary Note 5) The time interval included in the acceleration / geomagnetic / time information recorded in the acceleration / geomagnetic time information recording unit is included in the GPS position / time information recorded in the GPS position / time information recording unit. The system according to appendix 4, wherein the system is shorter than the time interval.

  (Appendix 6) GPS receiving function unit for calculating latitude and longitude by receiving signals from GPS satellite group, acceleration sensor function unit for measuring acceleration, geomagnetic sensor function unit for measuring geomagnetism, electric field strength for measuring electric field strength A mobile phone terminal having a detection function unit and an interference level detection function unit for measuring an interference level.

  (Appendix 7) A GPS position / time information recording unit that records as GPS position / time information by associating a time at which a signal from the GPS satellite group is received with the latitude and longitude calculated by the GPS reception function unit, and the acceleration sensor function An acceleration / geomagnetic / time information recording unit that records the acceleration and the geomagnetism measured as the acceleration / geomagnetic / time information in association with the acceleration and the geomagnetism measured by the geomagnetic sensor and the geomagnetic sensor function unit; Wireless communication for recording the wireless communication quality / time information by associating the time when the electric field strength and the interference level are measured with the electric field strength and the interference level measured by the electric field strength detection function unit and the interference level detection function unit, respectively. The mobile phone terminal according to appendix 6, further comprising a quality / time information recording unit

  (Supplementary Note 8) The time interval included in the acceleration / geomagnetic / time information recorded in the acceleration / geomagnetic time information recording unit is included in the GPS position / time information recorded in the GPS position / time information recording unit. The mobile phone terminal according to appendix 7, wherein the mobile phone terminal is shorter than the time interval.

(Supplementary note 9) GPS position / time information in which the time when the signal is received is associated with the latitude and longitude calculated from the signal received from the GPS (Global Positioning System) satellite group by the mobile phone terminal, the acceleration measured by the mobile phone terminal, and A position information deriving step of obtaining acceleration / geomagnetic / time information associating the acceleration and the time when the geomagnetism is measured with geomagnetism from the mobile phone terminal and deriving a movement path of the mobile phone terminal;
Radio communication quality / time information in which the electric field intensity and the interference level measured by the mobile phone terminal are associated with the time when the electric field intensity and the interference level are measured is acquired from the mobile phone terminal, and the radio communication quality / time is obtained. A wireless communication quality deterioration information deriving step for deriving wireless communication quality deterioration information, which is information specifying a point where wireless communication quality is deteriorated or wireless communication is interrupted by associating information with the movement route with respect to time; ,
Have
In the position information deriving step, the acceleration included in the acceleration / geomagnetic / time information is changed along the moving direction indicated by the acceleration / geomagnetic / time information, starting from the latitude / longitude calculated from positioning by GPS. And deriving the movement path by time integration.

  (Supplementary Note 10) In the wireless communication quality deriving step, as the time when the wireless communication quality is deteriorated or the time when the wireless communication is interrupted, the time when the electric field strength is equal to or less than a first threshold value or the time By extracting the time when the interference level is equal to or higher than the second threshold from the wireless communication quality / time information, and extracting the position corresponding to each extracted time from the movement route, the wireless communication quality is deteriorated. The method according to appendix 9, wherein a point where radio communication is interrupted is specified.

(Supplementary Note 11) A GPS reception function step in which the mobile phone terminal calculates a latitude and longitude by receiving a signal from the GPS satellite group;
An acceleration sensor function step in which the mobile phone terminal measures the acceleration; and
The mobile phone terminal measures a geomagnetism sensor that measures the geomagnetism, and
The mobile phone terminal measures the electric field strength, and the electric field strength detection function step;
An interference level detection function step in which the mobile phone terminal measures the interference level; and
The method according to appendix 9 or 10, further comprising:

(Additional remark 12) In the said mobile telephone terminal, the GPS position / time information recording which links | relates the time which received the signal from the said GPS satellite group with the latitude longitude calculated by the said GPS receiving function part, and records it as said GPS position / time information Steps,
In the mobile phone terminal, the acceleration and the geomagnetism / time information are recorded in association with the acceleration and the geomagnetism measured by the acceleration sensor function unit and the geomagnetic sensor function unit, respectively, with the time when the acceleration and the geomagnetism were measured. Acceleration, geomagnetism / time information recording step,
In the mobile phone terminal, the wireless communication quality is obtained by associating the time when the electric field strength and the interference level are measured with the electric field strength and the interference level measured by the electric field strength detection function unit and the interference level detection function unit, respectively. Radio communication quality to be recorded as time information / time information recording step;
The method according to appendix 11, further comprising:

  (Supplementary note 13) The time interval included in the acceleration / geomagnetic / time information recorded in the acceleration / geomagnetic time information recording step is included in the GPS position / time information recorded in the GPS position / time information recording step. The method according to appendix 12, wherein the method is shorter than the time interval.

(Supplementary note 14) GPS position / time information in which the time when the mobile phone terminal receives the signal to the latitude and longitude calculated from the signals received from the GPS (Global Positioning System) satellite group, the acceleration measured by the mobile phone terminal, A position information deriving unit for deriving a moving path of the mobile phone terminal by acquiring acceleration / geomagnetic / time information associating the acceleration and the time when the geomagnetism was measured with the geomagnetism from the mobile phone terminal;
Radio communication quality / time information in which the electric field intensity and the interference level measured by the mobile phone terminal are associated with the time when the electric field intensity and the interference level are measured is acquired from the mobile phone terminal, and the radio communication quality / time is obtained. A wireless communication quality deterioration information deriving unit for deriving wireless communication quality deterioration information, which is information specifying a point at which wireless communication quality deteriorates or wireless communication is interrupted, by associating information with the movement route with respect to time ,
With
The position information deriving unit uses the latitude and longitude calculated from the GPS positioning as a starting point, and the acceleration included in the acceleration / geomagnetic / time information along the moving direction indicated by the acceleration / geomagnetic / time information. A program for causing a computer to function as a server for calculating a wireless communication quality measurement point, wherein the moving route is derived by time integration.

  (Supplementary Note 15) The wireless communication quality deriving unit may determine the time when the wireless communication quality is deteriorated or the time when the wireless communication is interrupted, the time when the electric field strength is equal to or lower than a first threshold, or the By extracting the time when the interference level is equal to or higher than the second threshold from the wireless communication quality / time information, and extracting the position corresponding to each extracted time from the movement route, the wireless communication quality is deteriorated. Or The program according to appendix 14, wherein a point where radio communication is interrupted is specified.

  The present invention can be used to detect an area where communication quality deteriorates from a mobile phone service area or the like.

DESCRIPTION OF SYMBOLS 101 Mobile phone terminal 102 Base station 103 Control signal network 104 Location information / radio wave information analysis server 105 GPS satellite group 106 Mobile phone service area 201 Mobile phone basic function unit 202 GPS reception function unit 203 GPS position / time information recording unit 204 Electric field intensity Detection function unit 205 Interference level detection function unit 206 Acceleration sensor function unit 207 Geomagnetic sensor function unit 208 Acceleration / geomagnetic / time information recording unit 209 Wireless communication quality / time information recording unit 210 High-accuracy clock 301 Mobile phone terminal 302 Mobile phone terminal 303 Mobile phone terminal 304 Moving route 305 Moving point 306 Moving route 307 Moving route 308 Moving route 309 First GPS satellite group 310 Second GPS satellite group 311 Third GPS satellite group 312 Building / underground shopping area 313 Mobile phone service d A 314 Mobile phone service area 315 Mobile phone service area 316 Mobile phone service area 401 GPS position / time information 402 Acceleration / geomagnetic / time information 403 Wireless communication quality / time information 404 Position / time information deriving unit 405 Deriving wireless communication quality deterioration information Unit 406 Storage unit

Claims (9)

The GPS position / time information that associates the time at which the signal is received with the latitude and longitude calculated from signals received from a GPS (Global Positioning System) satellite group by the mobile phone terminal, and the acceleration and geomagnetism measured by the mobile phone terminal. And a position information deriving unit that obtains acceleration / geomagnetic / time information associated with the time when the geomagnetism is measured from the mobile phone terminal and derives a movement path of the mobile phone terminal;
Radio communication quality / time information in which the electric field intensity and the interference level measured by the mobile phone terminal are associated with the time when the electric field intensity and the interference level are measured is acquired from the mobile phone terminal, and the radio communication quality / time is obtained. A wireless communication quality deterioration information deriving unit for deriving wireless communication quality deterioration information, which is information specifying a point at which wireless communication quality deteriorates or wireless communication is interrupted, by associating information with the movement route with respect to time ,
With
The position information deriving unit uses the latitude and longitude calculated from the GPS positioning as a starting point, and the acceleration included in the acceleration / geomagnetic / time information along the moving direction indicated by the acceleration / geomagnetic / time information. A server for calculating a wireless communication quality measurement point, wherein the moving route is derived by time integration. The wireless communication quality deterioration information deriving unit is the time when the wireless communication quality is deteriorated or the time when the wireless communication is interrupted, the time when the electric field strength is equal to or less than a first threshold, or the interference level. Is extracted from the wireless communication quality / time information and the position corresponding to each extracted time is extracted from the movement path, thereby deteriorating the wireless communication quality, or 2. The server according to claim 1, wherein a point at which radio communication is interrupted is specified. A server for calculating a wireless communication quality measurement point according to claim 1 or 2,
A GPS reception function unit that calculates a latitude and longitude by receiving a signal from the GPS satellite group, an acceleration sensor function unit that measures the acceleration, a geomagnetic sensor function unit that measures the geomagnetism, and an electric field strength that measures the electric field strength A mobile phone terminal having a detection function unit and an interference level detection function unit for measuring the interference level;
A system for calculating a wireless communication quality measurement point. The mobile phone terminal
A GPS position / time information recording unit that records the GPS position / time information in association with the time at which a signal from the GPS satellite group is received by the latitude and longitude calculated by the GPS reception function unit;
Acceleration / geomagnetic / time information that records the acceleration and geomagnetism / time information in association with the acceleration and the geomagnetism measured by the acceleration sensor function unit and the geomagnetic sensor function unit, respectively, and records the acceleration and the geomagnetism time. A recording section;
The wireless communication quality / time information is recorded by associating the time when the electric field strength and the interference level are measured with the electric field strength and the interference level measured by the electric field strength detection function unit and the interference level detection function unit, respectively. A wireless communication quality / time information recording unit;
The system of claim 3, further comprising: The time interval included in the acceleration / geomagnetic / time information recorded in the acceleration / geomagnetic / time information recording unit is the time interval included in the GPS position / time information recorded in the GPS position / time information recording unit. The system of claim 4, wherein the system is shorter. GPS receiving function unit for calculating latitude and longitude by receiving signals from GPS satellites, acceleration sensor function unit for measuring acceleration, geomagnetic sensor function unit for measuring geomagnetism, electric field strength detection function unit for measuring electric field strength, and A mobile phone terminal having an interference level detection function unit for measuring an interference level,
A GPS position / time information recording unit that records as GPS position / time information by associating a time at which a signal from the GPS satellite group is received with the latitude / longitude calculated by the GPS reception function unit, the acceleration sensor function unit, and the geomagnetism An acceleration / geomagnetic / time information recording unit that records the acceleration and the geomagnetism measured by the sensor function unit in association with the time at which the acceleration and the geomagnetism are measured, and records the acceleration / geomagnetic / time information, and the electric field strength detection function Communication quality / time information recorded as wireless communication quality / time information by associating the time at which the electric field strength and the interference level were measured with the electric field strength and the interference level measured by the communication unit and the interference level detection function unit, respectively. mobile phone further comprising a recording section. The time interval included in the acceleration / geomagnetic / time information recorded in the acceleration / geomagnetic / time information recording unit is the time interval included in the GPS position / time information recorded in the GPS position / time information recording unit. The mobile phone terminal according to claim 6 , wherein the mobile phone terminal is shorter. The GPS position / time information that associates the time at which the signal is received with the latitude and longitude calculated from signals received from a GPS (Global Positioning System) satellite group by the mobile phone terminal, and the acceleration and geomagnetism measured by the mobile phone terminal. And a position information deriving step of deriving a movement route of the mobile phone terminal by acquiring acceleration / geomagnetic / time information associated with the time when the geomagnetism was measured from the mobile phone terminal;
Radio communication quality / time information in which the electric field intensity and the interference level measured by the mobile phone terminal are associated with the time when the electric field intensity and the interference level are measured is acquired from the mobile phone terminal, and the radio communication quality / time is obtained. A wireless communication quality deterioration information deriving step for deriving wireless communication quality deterioration information, which is information specifying a point where wireless communication quality is deteriorated or wireless communication is interrupted by associating information with the movement route with respect to time; ,
Have
In the position information deriving step, the acceleration included in the acceleration / geomagnetic / time information is changed along the moving direction indicated by the acceleration / geomagnetic / time information, starting from the latitude / longitude calculated from positioning by GPS. And deriving the movement path by time integration. The GPS position / time information that associates the time at which the signal is received with the latitude and longitude calculated from signals received from a GPS (Global Positioning System) satellite group by the mobile phone terminal, and the acceleration and geomagnetism measured by the mobile phone terminal. And a position information deriving unit that obtains acceleration / geomagnetic / time information associated with the time when the geomagnetism is measured from the mobile phone terminal and derives a movement path of the mobile phone terminal;
Radio communication quality / time information in which the electric field intensity and the interference level measured by the mobile phone terminal are associated with the time when the electric field intensity and the interference level are measured is acquired from the mobile phone terminal, and the radio communication quality / time is obtained. A wireless communication quality deterioration information deriving unit for deriving wireless communication quality deterioration information, which is information specifying a point at which wireless communication quality deteriorates or wireless communication is interrupted, by associating information with the movement route with respect to time ,
With
The position information deriving unit uses the latitude and longitude calculated from the GPS positioning as a starting point, and the acceleration included in the acceleration / geomagnetic / time information along the moving direction indicated by the acceleration / geomagnetic / time information. A program for causing a computer to function as a server for calculating a wireless communication quality measurement point, wherein the moving route is derived by time integration.

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