JP4735284B2 - Method for detecting position of portable terminal, position detecting system for portable terminal, and security system using portable terminal - Google Patents

Description

  The present invention relates to a mobile terminal position detection method, a mobile terminal position detection system, and a security system using the mobile terminal. More specifically, the present invention relates to a mobile terminal position detection method, a mobile terminal position detection system, and a security system using the mobile terminal that can detect the position of the mobile terminal even indoors.

  Conventionally, as a current position reporting device that can be portable and can report the current position in an emergency, and its system, the portable terminal calculates the current position based on information from GPS satellites, and transmits the calculated current position information to the monitoring center There is a reporting device (see, for example, Patent Document 1).

JP-A-8-180286 (page 9, FIG. 2)

However, when the current position is calculated from information from a conventional GPS satellite and the calculation result is transmitted to a monitoring center or the like, there is a problem that the position accuracy deteriorates indoors where the signal from the GPS satellite is difficult to reach.
For example, a GPS function mobile phone with a GPS function can calculate its current position with an accuracy of about 10 m or less if it is outdoors, but indoors, the reception status of information from GPS satellites deteriorates and positioning is performed. There was a problem that the accuracy deteriorated extremely.
For this reason, in a system such as a security system where it is necessary to always keep track of the position of the security guard who patrols both indoors and outdoors in the management device, the security guard simply carries the mobile phone with a GPS function. Then, the position was not able to be grasped enough.

  The present invention has been made to solve such problems, and provides a mobile terminal position detection method and a mobile terminal position detection system that can specify the position of a mobile terminal even indoors. With the goal.

The position detection system according to the present invention includes a receiver network in which a plurality of receivers that detect radio waves transmitted by a mobile terminal are disposed indoors, and the receiver network and the mobile terminal connected via the network to the mobile terminal. A mobile terminal position detection system, wherein the management terminal includes a receiver network in which a plurality of receivers for detecting radio waves transmitted by the mobile terminal are disposed indoors, and the reception A mobile terminal and a mobile terminal and a management terminal connected to the mobile terminal via the network for managing the position of the mobile terminal,
The management terminal associates a reception time when the command is received according to a command from the management terminal and transmits the received portable terminal ID to the management terminal in association with the position detection target portable terminal. When the mobile terminal receives the command, the mobile terminal transmits a reception notification in which the reception time and its mobile terminal ID are associated according to the command to the management terminal, and the receiver When the mobile terminal detects a radio wave that transmits the reception notification, the mobile terminal transmits a detection notification in which the detection time at which the radio wave is detected and its own receiver ID are associated to the management terminal, and the management terminal Compares the reception time associated with the mobile terminal ID with the detection time, and places the receiver with the receiver ID associated with the detection time And to detect the position of the mobile terminal based on.

  According to the present invention, the position of the mobile terminal can be detected even indoors.

Embodiment 1 FIG.
FIG. 1 is a diagram for explaining a configuration of a position information system in the first embodiment.
The management terminal 10 is a terminal that manages the position of the mobile phone 30, and transmits a mail 101 made up of a character string to the mobile phone 30 that is the target of position search via the mobile phone base station 20. The character string sent by the mail 101 becomes a command (command) that causes the mobile phone 30 to execute the process specified by the character string. The contents of the command will be described later. The management terminal 10 receives the reception notification 102 transmitted from the mobile phone 30 via the mobile phone base station 20. The contents of the reception notification 102 will be described later.

  The mobile phone 30 receives the mail 101 from the management terminal 10 via the mobile phone base station 20. The cellular phone 30 decodes the command composed of the character string transmitted by the mail 101 and returns the result processed in accordance with the command as a reception notification 102 to the management terminal 10 via the cellular phone base station 20.

  The small receiver 40 is installed for each room on each floor of a building such as an office building. The installation location of the small receiver is not limited to an office building but may be a building such as a factory, and is installed at a location where the location of the person carrying the mobile phone is desired to be specified. The small receiver 40 detects the presence or absence of radio waves transmitted from the mobile phone 30 by monitoring radio waves in the frequency band emitted by the mobile phone 30. When the small receiver 40 detects a radio wave emitted from the mobile phone, it transmits a detection notification 103 to the management terminal 10 via a network such as a local area LAN or the Internet.

  FIG. 2 shows a configuration diagram of the management terminal 10, the mobile phone 30, and the small receiver 40.

  In FIG. 2, the management terminal 10 includes first to third memories 12 to 14. The first memory 12 stores the telephone number, address, etc. of the destination mobile phone. The second memory 13 stores a command table 18 of commands for instructing the mobile phone 30 to execute. The third memory 14 stores a reception notification 102 from the portable terminal 30 and a detection notification 103 from the small receiver 40. The processing unit 15 extracts a command number corresponding to the process to be executed by the mobile terminal 30 from the command table 18 and transmits the command number as a character string mail to the destination mobile phone. FIG. 3 shows an example of the command table 18. The contents of the command table 18 will be described later.

  In FIG. 2, a mobile phone 30 includes a transmission / reception unit 31 that transmits / receives information to / from the management terminal 10, a clock 32 that outputs the current time, and a storage unit 33 that stores an ID number that is individually given to the mobile phone in advance and identifies itself. The processing unit 34 stores a program 35 that decodes the content of the command from the character string transmitted by mail from the management terminal 10 and performs processing according to the decoded command. When the transmission / reception unit 31 receives the mail 101 from the management terminal 10, the program 35 stored in the processing unit 34 decodes the content of the command sent by the mail. Then, processing corresponding to the decoded command is executed, and the execution result is transmitted to the management terminal 10 as a reception notification 102.

  Here, the mobile phone 30 may be equipped with a GPS receiver 36. In an environment where a GPS signal that is a positioning signal can be received from a GPS satellite while outdoors, the GPS receiver 36 can measure its own position based on the GPS signal. Further, the time of the internal clock 32 may be calibrated based on the clock error obtained in the positioning process.

  In FIG. 2, the small receiver 40 stores a transmission / reception unit 41 that transmits a detection notification 103 to the management terminal 10, a clock 42 that outputs the current time, and a small receiver ID number given in advance for each small receiver. And a processing unit 44 that receives and processes radio waves emitted from the mobile phone 30. The transmission / reception unit 41 constantly monitors the radio waves emitted from the mobile phone 30, and transmits a detection notification 103 to the management terminal 10 when it detects that the reception notification 102 is issued from the mobile phone 30 by monitoring the radio waves. The contents of the detection notification 103 will be described later.

  FIG. 4 shows an example of installation of the small receiver 40. The small receiver 40 is installed in each room on each floor of a building 50 such as an office building, and receives radio waves emitted from the mobile phone 30 located in the same room. Each small receiver 40 is connected to a network such as a local LAN or the Internet by wire or wireless, and is in an environment in which communication with the management terminal 10 is performed.

  FIG. 5 is a diagram for explaining the operation of the position information system according to the first embodiment. The operation of the position information system according to the first embodiment will be described with reference to FIG.

(1) In step S101 (hereinafter, referred to as S101), the management terminal 10 uses the address of the mobile phone 30 (determining the location of the mobile phone with the ID number 36) looking for the current location as the transmission destination. To send the command number. Here, the management terminal 10 transmits the command number (command number = 1 in the example of FIG. 3) corresponding to the command for returning the reception time of the mail to the mobile phone and the ID number of the mobile phone by the mail 101. To do.

(2) The mobile phone 30 receives the mail 101 via the mobile phone base station 20 (S103).

(3) The processing unit 34 of the mobile phone that has received the mail 101 has a program for recognizing the command number sent by mail, and performs processing according to the recognized command number (S104). Here, since the received command number is 1, the processing unit 34 acquires the reception time when the mail 101 is received from the clock 32 and also acquires the ID number of its own mobile phone from the storage unit 33 and acquires the received reception time. And the ID number of the mobile phone are transmitted to the management terminal 10 as a reception notification 102 (S105).

(4) The mobile phone base station receives the reception notification from the mobile phone and transmits it to the management terminal 10 (S106).

(5) The management terminal 10 receives the reception notification 102 (S107). The management terminal 10 stores the mobile phone ID number and the reception time sent in the reception notification 102 in the third memory 14 (S108).

(6) On the other hand, the small receiver 40 constantly monitors the radio wave of the reception notification 102 transmitted by the mobile phone 30. The small receiver 40 that has detected the radio wave emitted by the mobile phone 30 in the transmission / reception unit 41 includes the detection time when the radio wave is detected based on the clock 42 installed therein, and the ID number of the small receiver that is assigned to the small receiver in advance. Are transmitted as detection signals to the mobile phone base station (S109).

(7) The management terminal 10 that has received the detection signal stores the ID number and detection time of the small receiver transmitted by the detection signal in the third memory unit 14 (S110).
FIG. 6 is an example of the information list 60 of the received signal 102 and the detection signal 103 stored in the third memory unit 14 in a list format. FIG. 7 schematically shows transmission timings at which the mobile phone 30 and the small receiver 40 transmit the reception notification 102 and the detection notification 103, respectively. The information list 60 in FIG. 6 shows that the mobile phone 30 with the ID number 36 receives the mail 101 from the management terminal 10 at 11:10:10 and the management terminal 10 receives the reception notification 102 sent by the mobile phone 30 with the ID number 36. Is received at 11:10:12. The management terminal 10 detects the reception notification 103 transmitted by the mobile phone 30 whose ID number cannot be specified at 11:10:10, and the management terminal 10 displays the detection notification 103 transmitted by the small receiver 40 with ID number 1. It shows that it was received at 11:10:12.

(8) The management terminal 10 specifies the position of the mobile phone 30 based on the information list 60 (S111). The position of the mobile phone 30 is specified as follows. When receiving the reception notification 102, the management terminal 10 searches the information list 60 for a detection time that is substantially the same as the reception time at which the mobile phone 30 received the mail 101. Next, the ID number of the small receiver corresponding to the detected detection time is extracted. The processing unit 15 of the management terminal 10 determines that the mobile phone 30 that is searching for a position is in the vicinity of the small receiver having the extracted ID number. In the example of the information list 60 of FIG. 6, the mobile phone ID number 36 reception time (11:10:10) and the detection time (11:10:10) of the detection notification transmitted from the small receiver of ID number 1 Therefore, it is determined that the mobile phone with ID number 36 is at the location of the small receiver with ID number 1.

(9) The processing unit 15 displays the position of the mobile phone 30 with the ID number 36 identified by the above flow on the display device (not shown) “in the vicinity of the small receiver with the ID number 1”. To do.

  In the present invention, a plurality of small receivers are installed indoors to detect radio waves emitted by mobile phones located nearby. The management terminal that manages the location information of the mobile phone transmits a processing command to the mobile phone that searches for the location. When the mobile phone receives a processing command from the management terminal, the processing unit provided in the mobile phone transmits the received reception time and the ID number of the mobile phone to the management terminal. When the small receiver detects the radio wave of the mobile phone, the small receiver transmits the detection time when the radio wave is detected and the ID number of its own small receiver to the management terminal. The management terminal compares the reception time transmitted from the mobile phone with the detection time transmitted from the small receiver to identify the small receiver that has received the outgoing radio wave transmitted by the mobile phone communicated from the management center. I did it.

  As described above, according to the present invention, the current position of the mobile phone can be specified by the installation position of the small receiver even indoors.

Embodiment 2. FIG.
In the first embodiment, the example of the case where there is one mobile phone in the building has been described, but actually, a plurality of mobile phones are used in the building. In the second embodiment, the position of the designated mobile phone is specified in a situation where a plurality of mobile phones are used in a building.

  FIG. 8 is a diagram for explaining the operation of the position information system in the second embodiment. The configuration of the position information system is the same as that in the first embodiment. The same configuration and the same steps as those of the first embodiment are denoted by the same reference numerals and description thereof is omitted. Here, steps different from those of the first embodiment will be mainly described.

(1) In the same manner as in the first embodiment, the management terminal 10 transmits a message serving as a command to the mobile phone 30 that searches for a position in steps S101 to S110, and the mobile phone 30 receives a reception notification 102 and a small receiver. The detection notification 103 is received from (ID number 1) 40.

(2) In the second embodiment, in S201, the small receiver (ID number 2) 40 detects the reception notification 102 issued by the mobile phone 30 different from the mobile phone to be searched and is the detected time. The detection time and the ID number of the small receiver are transmitted to the management terminal 10 as a detection notification 103.

(3) Upon receiving the detection notification 103, the management terminal 10 stores the mobile phone ID number and the reception time transmitted in the detection notification 103 in the information list 60 in the third memory (S108). FIG. 9 shows an example of the information list 60. FIG. 10 schematically shows the timing at which the mobile phone 30 and the small receiver 40 with ID numbers 1 and 2 transmit the reception notification 102 and the detection notification 103, respectively. In FIG. 11, the mobile phone 30 with the ID number 36 receives the mail 101 from the management terminal 10 at 11:10:10, and the reception notification 102 sent by the management terminal 10 from the mobile phone 30 with the ID number 36 is 11:10. It shows that it was received at 12 minutes. Further, the small receiver 40 detects the reception notification 103 transmitted by the mobile phone 30 at 11:10:10, and the management terminal 10 detects the detection notification 103 transmitted by the small receiver 40 with ID number 1 at 11:10. It shows that it was received in 12 seconds. The small receiver 40 detects the reception notification 103 transmitted by the mobile phone 30 at 11:10:14, and the management terminal 10 detects the detection notification 103 transmitted by the small receiver 40 with ID number 2 at 11:10. Indicates that it was received in 15 seconds.

(4) The management terminal 10 specifies the position of the mobile phone 30 based on the information list 60 (S111). The location of the mobile phone 30 being searched is specified as follows. When receiving the reception notification 102, the management terminal 10 searches the information list 60 for a detection time that is substantially the same as the reception time at which the mobile phone 30 received the mail 101. In the example of the information list 60 shown in FIG. 9, there are two detection notifications in the list, that is, a detection notification from the small receiver with ID number 1 and a detection notification from the small receiver with ID number 2. A detection time that is substantially the same as the reception time (11:10:10) from the mobile phone of number 36 is searched. Here, the detection time (11:10:10) from the small receiver with ID number 1 is searched. Next, the ID number of the small receiver corresponding to the detected detection time is extracted. Here, ID number 1 is extracted. The processing unit 15 of the management terminal 10 determines that the mobile phone 30 that is searching for a position is in the vicinity of the small receiver having the extracted ID number (ID number 1).

  As described above, according to the second embodiment, even when there are a plurality of portable terminals indoors, the position of the cell phone being searched for can be specified by the installation position of the small receiver without error. Can do.

Embodiment 3 FIG.
In the second embodiment, an example in which a plurality of portable terminals are in a building and the reception notifications issued by the respective portable terminals are at different times has been described. In the third embodiment, the position of the designated mobile phone is specified in a situation where there are a plurality of mobile terminals in the building and the reception notifications issued by the respective mobile terminals are almost at the same time.

  FIG. 11 is a diagram for explaining the operation of the position information system in the third embodiment. The configuration of the position information system is the same as that in the second embodiment. The same configuration and the same steps as those of the second embodiment are denoted by the same reference numerals and description thereof is omitted. Here, steps different from those of the second embodiment will be mainly described.

(1) In the same manner as in the second embodiment, the management terminal 10 transmits a message serving as a command to the mobile phone 30 that searches for a position in steps S101 to S110 and steps S201 to S202, and receives a notification from the mobile phone 30. The detection notification 103 is received from the small receiver 40 having the ID 102 and ID numbers 1 and 2. FIG. 12 shows an example of the reception list. FIG. 13 schematically shows the timing at which the mobile phone 30 and the small receiver 40 with ID numbers 1 and 2 transmit the reception notification 102 and the detection notification 103, respectively. In the third embodiment, it is assumed that the mobile phones with ID numbers 1 and 2 receive radio waves from different mobile phones at approximately the same time and transmit the reception notification 102.

(2) The processing unit 15 of the management terminal 10 specifies the position of the mobile phone 30 based on the information list 60 (S111). The specifying method is the same as that in the second embodiment, and is performed by comparing the reception time and the detection time. In the example of FIG. 14, since the reception time (11:10:10) and the detection time (11:10:10) from the two small receivers (ID numbers 1 and 2) are the same time, the position of the mobile phone Cannot be identified.

(3) In this case, the management terminal 10 returns to step S101 (S301), and again performs a process of sending an e-mail to the mobile phone whose position is to be searched (S101).

(4) Thereafter, the processing of S101 to S111 is performed again to narrow down the small receivers at the detection time substantially the same as the reception time. In the example of FIG. 14, the small receiver with ID number 1 corresponding to the second mail transmission from the management terminal 10 is extracted, and it can be seen that the mobile phone to be searched is located in the vicinity of the small receiver with ID number 1. . If the position of the mobile phone cannot be specified even by the second mail transmission, the management terminal 10 repeatedly transmits the mail until the position can be specified.

 As described above, in the third embodiment, the management terminal 10 can receive the notification sent at the same detection time from the plurality of small receivers 40 for the mail transmitted from the management terminal 10. By repeatedly sending e-mails to the mobile phone that is the search partner, the location can be specified.

Embodiment 4 FIG.
In the first to third embodiments, each mobile phone 40 receives the mail 101 from the management terminal 10 and transmits the reception notification 102. In the mobile phone 4, the location of the designated mobile phone is specified in a situation where another mobile phone other than the mobile phone for which the location search is being performed.

   FIG. 14 is a diagram for explaining the operation of the position information system in the second embodiment. FIG. 15 is an example of a reception list. FIG. 16 is a diagram schematically illustrating the timing at which the mobile phone 30 and the small receiver 40 with ID numbers 1 and 2 transmit the reception notification 102 and the detection notification 103, respectively. The configuration of the position information system is the same as that of the third embodiment. The same configuration and the same steps as those of the third embodiment are denoted by the same reference numerals and description thereof is omitted.

  In FIG. 16, the small receiver with ID number 2 receives a radio wave emitted by a mobile phone other than ID number 36 that is searching for a position, and continuously transmits a detection notification 102 to the management terminal 10. ing. At this time, the information list 60 of the management terminal 10 includes a detection signal from the small receiver with ID number 1 receiving the radio wave emitted by the mobile phone with ID number 36 and a detection from the small receiver with ID number 2. Since the signal is stored, the management terminal 10 cannot identify which is the correct position.

  In FIG. 16, when the management terminal 10 determines that the position of the mobile phone cannot be specified (S301), it searches the information list 60 for a small receiver that continuously receives radio waves (S401). ). When there is a small receiver that continuously receives radio waves for a long time, the processing unit 15 of the management terminal determines that the small receiver has detected the radio waves of the mobile phone in a call and receives the reception list. The small receiver is deleted from (S402).

  Next, the processing unit 15 performs position specification based on the deleted reception list. In the example of the information list 60 shown in FIG. 15, the small receiver with ID number 2 is deleted from the information list 60. Then, the processing unit 15 specifies the position of the small receiver with ID number 1 as the position of the mobile phone.

  As described above, in the fifth embodiment, since the small receiver that is receiving the radio wave during a call is deleted from the information list 60, the small receiver can be extracted without error and searched. The position of the mobile phone can be reliably identified.

Embodiment 5 FIG.
In the fourth embodiment, when the position of the mobile phone cannot be specified by receiving detection notifications from a plurality of small receivers, a search is made as to whether there is a mobile phone in a call. In the fifth embodiment, a plurality of small receptions are performed. When the position of the mobile phone cannot be specified after receiving the detection notification from the machine, the position is specified by comparing the reception intensity.

  FIG. 17 is a diagram for explaining the operation of the position information system in the fifth embodiment. The configuration of the position information system is the same as that of the fourth embodiment. The same configurations and the same steps as those of the fourth embodiment are denoted by the same reference numerals and description thereof is omitted.

  In S111 of FIG. 17, the management terminal 10 specifies the position of the mobile phone 30 as in the fourth embodiment. Here, the processing unit 44 of the small receiver 40 measures the intensity of the radio wave received from the mobile phone, and transmits the measured radio wave intensity as part of the detection notification.

  Here, the management terminal 10, when can not be identified or not by one of the detection signal 103 is a mobile phone that searching from any small receiver for receiving a detection signal from a plurality of small receivers, each of the small receiver 40 The radio wave intensity of the detection notification sent from is compared (S501). Then, the small receiver that has received the strongest radio wave is determined to be the small receiver that is closest to the cell phone being searched, and the position of the cell phone is specified.

  Next, the management terminal 10 identifies the position of the small receiver determined in S501 as the position of the mobile phone, and outputs it to a display device or the like (S112).

  As described above, in the fifth embodiment, the management terminal 10 obtains information on the radio wave intensity of the mobile phone from the small receiver 40, and specifies the position of the mobile phone by comparing the radio wave intensity. Thereby, even when the position of the mobile phone cannot be specified by receiving detection notifications from a plurality of small receivers, the position of the mobile phone being searched for can be specified accurately.

Embodiment 6 FIG.
In the fifth embodiment, when the position of the mobile phone cannot be specified after receiving detection notifications from a plurality of small receivers, the position is specified by comparing the reception intensity. In the sixth embodiment, the time timing of the mail transmitted by the management apparatus 10 is given a pattern, and the transmission pattern is compared with the detection notification pattern transmitted from the small receiver in response to the command. The position of the desired mobile phone 30 is specified.

  FIG. 18 illustrates a timing at which the management apparatus 10 transmits an email to a mobile phone that searches for a position, a timing at which the mobile phone 30 receives an email from the management apparatus 10 and transmits a reception notification 102, and a plurality of small receptions. It is an example of the figure which represented the timing of the detection notification which the machine 40 transmits typically. Here, a method of specifying the position of the mobile phone will be described using the example shown in FIG.

  The management apparatus 10 transmits the mail 101 as a command to the mobile phone that is the target of the position search a plurality of times. In the example of FIG. 18, the second mail is transmitted t1 (seconds) after the first mail transmission, and the third and fourth mails are transmitted after t2 (seconds) and after t3 (seconds). . The mobile phone 30 that has received the mail 101 from the management apparatus 10 transmits the first to fourth reception notifications at time timings t1, t2, and t1 (seconds) corresponding to the mail reception interval.

  On the other hand, the small receiver 2 (ID = 2) that has received the reception notification radio wave transmitted by the mobile phone 30 is the first to the same timing as t1, t2, and t1 (seconds), similar to the transmission timing of the reception notification. A fourth detection signal 103 is transmitted to the management terminal 10. In the small receiver 1 (ID = 1), the transmission time of the detection signal 103 coincides with the first transmission time of the small receiver 2 (ID = 2). There is no transmission. In the small receiver 3 (ID = 3), the transmission time of the first detection signal 103 coincides with the first transmission time of the small receiver 2 (ID = 2), but the second detection signal is After t3 (seconds).

  The management terminal 10 stores, in the first memory, the transmission timing of the mail transmitted to the search target mobile phone a plurality of times. The processing unit 15 of the management terminal searches for a small receiver that transmits a detection notification at the same timing as the transmission timing among detection notifications transmitted from a plurality of small receivers. Then, it is determined that there is a mobile phone in the vicinity of the small receiver that transmits at the same timing.

  As described above, according to the sixth embodiment, the time timing of the mail transmitted by the management apparatus 10 is provided with pattern characteristics, the transmission pattern, and the detection notification pattern transmitted from the small receiver in response to the command. Are compared, and it is determined that the desired mobile phone 30 is located in the vicinity of the small receiver having the same timing. According to this, even when the detection notification is simultaneously received from a plurality of small receivers and the position of the mobile phone cannot be specified, the position of the mobile phone 30 can be reliably specified.

Embodiment 7 FIG.
In the mobile phones 1 to 6, the management terminal 10 transmits a mail to the mobile phone 30 that is searching, and the mobile phone 30 includes a program 35 that decodes and executes the content of the received mail. did. The location information system according to the present invention is not limited to the effectiveness by such mail transmission / reception, but, for example, other protocols such as HTTP, HTTPS, etc., and other communication protocols that can be applied to mobile phone applications such as socket communication protocols. Can also be realized. In mail transmission / reception, a plurality of mail services such as Internet mail service and short mail service can be applied.

  FIG. 18 is a diagram for explaining the configuration of the position information system according to the seventh embodiment. The same configurations and the same processes as those in the first to sixth embodiments are denoted by the same reference numerals and description thereof is omitted. FIG. 18 shows an example in which a mobile phone compatible with the socket communication protocol is used. The center server 70 delivers the command 105 to the mobile phone using a socket communication protocol. The processing unit 34 of the mobile terminal 30 that has received the command 105 automatically executes the same processing as in the first to sixth embodiments in accordance with the command.

  In the seventh embodiment, the management terminal 10 transmits the command 105 via the center server 70, not by mail transmission, and the mobile phone 30 allows the application corresponding to the socket communication protocol to decode the command consisting of a character string. The management terminal 10 can specify the position of the mobile phone 30 by performing the process and notifying the management terminal 10 of the detection notification 103.

Embodiment 8 FIG.
In the seventh embodiment, the mobile phone 30 includes the GPS receiver 36 and performs positioning using the GPS signal if it can receive the GPS signal 110 from the GPS satellite 80 and transmits the result to the management terminal 10. In a situation where a GPS signal cannot be received from a GPS satellite, a reception notification 102 is transmitted to the management terminal.

  FIG. 19 is a diagram for explaining the operation of the position information system according to Embodiment 4 of the present invention. Here, the mobile phone 30 includes a GPS receiver 36 (see FIG. 1). The same functions and processes as those in the first to seventh embodiments are denoted by the same reference numerals and description thereof is omitted.

  FIG. 20 is a flowchart for explaining the operation of the mobile phone 30 in the seventh embodiment. FIG. 21 is a flowchart for explaining the operation of the management terminal 10 in the seventh embodiment.

  The operation of the position information system according to the eighth embodiment will be described with reference to FIG. 20, FIG. 21, and FIG. Here, the configuration of the position information system is the same as that of the seventh embodiment, and the same configurations and the same steps are denoted by the same reference numerals and description thereof is omitted.

In FIG.
(1) When receiving the command 105 from the management terminal 10, the GPS receiver 36 of the mobile phone 30 receives the GPS signal 110, which is a positioning signal, from the GPS satellite 80 (S701). When GPS signals can be received from four or more GPS satellites, the process proceeds to step S702. On the other hand, if it cannot be received, the process proceeds to step S704.
(2) In S702, the GPS receiver 36 measures its own position based on the received GPS signal, and outputs the measured positioning information to the processing unit 34.
(3) Next, in S <b> 703, the processing unit 34 transmits the ID number and position information of its own mobile phone stored in the storage unit 33 to the management terminal 10.
(4) On the other hand, when four or more GPS signals cannot be received in S <b> 701, the processing unit 34 transmits a reception notification 102 to the management terminal 10.

Next, in FIG.
(1) The management terminal 10 determines whether the transmission information from the mobile phone 30 is a positioning result by a GPS signal (S711).
(2) If the positioning result is a GPS signal, the positioning result is specified as the position of the mobile phone (S712).
(3) If the positioning result is not a GPS signal, the mobile phone is located indoors where GPS signals cannot be received, and the position of the mobile phone is specified by any of the forms shown in the first to sixth embodiments (S714). .
(4) The management terminal 10 outputs the position of the mobile phone specified in S712 or S714 (S713).

  As described above, according to the eighth embodiment, the mobile phone transmits the positioning result based on the GPS signal to the management terminal if the mobile phone is in an environment where the GPS signal can be received, and if the mobile phone is indoors, As shown in the first to sixth embodiments, the reception notification is transmitted to the management terminal. If the mobile phone can receive GPS signals, the management terminal can identify the location of the mobile phone from the positioning results. If the mobile phone is indoors, it can receive notifications and detection notifications for small receivers installed indoors. Thus, the position of the mobile phone can be specified. Thus, the management terminal can specify the position of the mobile phone regardless of whether it is indoors or outdoors.

  FIG. 22 is an example of a display of the position of the mobile phone specified by the management terminal 10. On the display device of the management terminal, the positions of a plurality of mobile phones that are indoors as well as outdoors are displayed in a map.

  FIG. 23 is an example of an application that uses a mobile phone as a security terminal. The security guard who detects the anomaly takes a picture of the scene with a mobile phone camera. Thereafter, the photographed on-site photograph is transmitted to the security central terminal which is the management terminal. The security central terminal can share information by distributing the location of the occurrence of the anomaly and the on-site photo to each security terminal being guarded. Here, according to the present invention, the site of occurrence of an abnormality is not limited to the outdoors but may be indoors, and position information can be shared.

  FIG. 24 is an example of an application using a mobile phone as a disaster prevention terminal. When a disaster such as an earthquake or fire occurs in a factory or office, employees carrying a mobile phone send their location and the disaster situation taken with the mobile phone camera to the disaster prevention central terminal, which is the management terminal. To do. The disaster prevention central terminal can share the disaster situation by distributing the disaster situation and the call result. Here, according to this invention, since the disaster prevention central terminal can grasp | ascertain a position also about the employee who exists indoor, it is useful for disaster prevention.

It is a figure explaining the structure of the position information system which concerns on Embodiment 1 of this invention. It is a block diagram of the management terminal, mobile telephone, and small receiver which concern on Embodiment 1 of this invention. It is a figure which shows an example of the command table which concerns on Embodiment 1 of this invention. It is a figure which shows an example of installation of the small receiver which concerns on Embodiment 1 of this invention. It is a figure explaining operation | movement of the positional information system which concerns on Embodiment 1 of this invention. It is the figure which showed an example of the information list which concerns on Embodiment 1 of this invention. It is the figure which showed an example of the transmission timing of the reception notification and detection notification which concern on Embodiment 1 of this invention. It is a figure explaining operation | movement of the positional information system which concerns on Embodiment 2 of this invention. It is the figure which showed an example of the information list which concerns on Embodiment 2 of this invention. It is the figure which showed an example of the transmission timing of the reception notification and detection notification which concern on Embodiment 2 of this invention. It is a figure explaining operation | movement of the positional infomation system which concerns on Embodiment 3 of this invention. It is the figure which showed an example of the information list which concerns on Embodiment 3 of this invention. It is the figure which showed an example of the transmission timing of the reception notification and detection notification which concern on Embodiment 3 of this invention. It is a figure explaining operation | movement of the positional information system which concerns on Embodiment 4 of this invention. It is the figure which showed an example of the information list which concerns on Embodiment 4 of this invention. It is the figure which showed an example of the transmission timing of the reception notification and detection notification which concern on Embodiment 4 of this invention. It is a figure explaining operation | movement of the positional infomation system which concerns on Embodiment 5 of this invention. It is the figure which showed an example of the transmission timing of the reception notification and detection notification of the positional information system which concerns on Embodiment 6 of this invention. It is a figure explaining operation | movement of the positional infomation system which concerns on Embodiment 7 of this invention. It is a figure explaining operation | movement of the positional infomation system which concerns on Embodiment 8 of this invention. It is a flowchart figure explaining operation | movement of the mobile telephone 30 in Embodiment 8 of this invention. It is a flowchart figure explaining operation | movement of the management terminal 10 in Embodiment 8 of this invention. It is an example of the display of the position of the mobile telephone which the management terminal 10 which concerns on Embodiment 8 of this invention specified. It is an example of the application which uses the mobile telephone which concerns on Embodiment 8 of this invention as a security terminal. It is an example of the application which used the mobile telephone which concerns on Embodiment 8 of this invention as a terminal for disaster prevention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Management terminal, 11 Transmission / reception part, 12 1st memory, 13 2nd memory, 14 3rd memory, 15 processing part, 18 Command table, 20 Mobile phone base station, 30 Mobile phone, 31 Transmission / reception part, 32 Clock , 33 storage unit, 34 processing unit, 35 program, GPS receiver 36, 40 small receiver, 41 transmission / reception unit, 42 clock, 43 storage unit, 44 processing unit, 50 building, 60 information list, 70 center server, 80 GPS Satellite, 110 GPS information, 101 mail, 102 reception notification, 106 GPS positioning result.

Claims (11)

A receiver network in which a plurality of receivers for detecting radio waves transmitted by the mobile terminal are arranged indoors, a management terminal connected to the receiver network and the mobile terminal via the network and managing the position of the mobile terminal; A position detection system for a portable terminal having
The management terminal associates a reception time when the command is received according to a command from the management terminal and transmits the received portable terminal ID to the management terminal in association with the position detection target portable terminal. Send a command requesting
When the portable terminal receives the command, the portable terminal transmits a reception notification in which the reception time is associated with the portable terminal ID according to the command to the management terminal,
When the receiver detects a radio wave for transmitting the reception notification, the receiver transmits a detection notification in which the detection time at which the radio wave is detected and its receiver ID are associated with the management terminal,
The management terminal compares the reception time associated with the portable terminal ID with the detection time, and detects the position of the portable terminal based on the arrangement location of the receiver of the receiver ID associated with the detection time A position detection system for a portable terminal. The management terminal detects the position of the mobile terminal based on the location of the receiver with the receiver ID associated with the detection time closest to the reception time . The management terminal searches for a detection time that is substantially the same as the reception time transmitted from the mobile terminal as a position detection target from among detection times transmitted from the plurality of receivers, and receives a plurality of receptions. If the detection time of the same time is retrieved from the machine, the management terminal the command transmitted to the mobile terminal again, to the command transmitted again, the received transmitted from the mobile terminal time and on the basis of said receiver ID and the detection time transmitted from the portable terminal ID and the front and receiver, the position of the portable terminal according to claim 1, wherein the detecting the position of said mobile terminal Detection system. The management terminal, a position detection system for a portable terminal according to claim 3, wherein transmitting the command repeated until detecting a position of said mobile terminal to said mobile terminal. The management terminal searches for a detection time that is substantially the same as the reception time transmitted from the portable terminal for position detection from among detection times transmitted from the plurality of receivers. If the detection time of the same time is retrieved from, to exclude a receiver to detect a radio wave of the portable terminal during a call, according to claim 1, wherein the detecting the position of said mobile terminal Mobile terminal position detection system. The management terminal searches for a detection time that is substantially the same as the reception time transmitted from the mobile terminal as a position detection target from among detection times transmitted from the plurality of receivers, and receives a plurality of receptions. If the detection time of the same time is retrieved from the aircraft, the position of the mobile terminal in the radio waves the receiver has detected, as the vicinity of the radio field intensity is strongest receiver is a current position of the mobile terminal The position detection system for a portable terminal according to claim 1, wherein: The management terminal transmits the command combined at a predetermined time interval, and the vicinity of the receiver that has transmitted a detection signal to the command at the predetermined time interval is the current position of the portable terminal The position detection system of a portable terminal according to claim 1, wherein the position of the portable terminal is detected. The mobile terminal position detection system according to claim 1, wherein the management terminal transmits the command using a short mail service provided for communication of the mobile terminal. The mobile terminal position detection system according to claim 1, wherein the management terminal transmits the command using an Internet mail service provided for communication of the mobile terminal. A receiver network in which a plurality of receivers for detecting radio waves transmitted from a mobile terminal are arranged indoors, and a management terminal connected to the receiver network and the mobile terminal via the network and managing the position of the mobile terminal A mobile terminal position detection method in a mobile terminal position detection system having:
Said management terminal, with respect to the position detection target of the mobile terminal, to the transmission of the ID of the portable terminal receiving the a reception time of the received command to command the management terminal transmits to the management terminal instructs Sending a content command;
Sending an acknowledgment to the mobile device consists of a mobile terminal ID of the receiving time and the self-which has received the pre-Symbol command to the management terminal,
The receiver, and transmitting the mobile terminal detects the radio wave of the reception notification to send, a detection notification comprising a receiver ID of detection time and self it detects the radio waves to the management terminal,
Mobile terminal the management terminal, and before and said portable terminal ID with Ki受 Shin time, characterized in that the front and a step of identifying the location of the mobile terminal based on said receiver ID and dangerous knowledge time Position detection method. A receiver network in which a plurality of receivers that detect radio waves transmitted by portable terminals carried by security guards are installed indoors, and the receiver network and the portable terminal are connected via the network to manage the position of the portable terminal A security system using a mobile terminal having a management terminal
Content that causes the management terminal to transmit, to the management terminal, the reception time when the command transmitted by the management terminal is received and the ID of the mobile terminal that has received the command to the mobile terminal subject to position detection Send the command
The mobile terminal that has received the command transmits a reception notification including the reception time at which the command is received and its mobile terminal ID to the management terminal,
The receiver that has detected the radio wave of the reception notification transmitted by the mobile terminal transmits a detection notification including the detection time at which the radio wave is detected and its own receiver ID to the management terminal,
The management terminal, before use and the portable terminal ID and Ki受 Shin time, the mobile terminal characterized by and Turkey detecting the position of said mobile terminal based before and the receiver ID and dangerous knowledge time Security system.

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