JPH1175241A - Phs position information retrieval method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To flexibly manage position information at a supervisory center side. SOLUTION: A supervisory center 1-5 manages each terminal 1-1 through the provision of a telephone number, notice period or time table and makes setup (1) with each terminal based on the table and sets the notice period or time to its outgoing subaddress for the notice, and each terminal 1-1 stores the notice period or time in its outgoing subaddress and each terminal 1-1 sends an ID of a PHS base station and its reception level having been received by its terminal as position information when the stored period or time comes round.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention uses a portable communication device (hereinafter, referred to as a position information notification terminal) utilizing PHS wireless communication, and converts information corresponding to a location where the terminal exists into a position information conversion center. The location information conversion center converts the received information into latitude / longitude information and notifies the terminal location monitoring center, and the terminal location monitoring center compares the location information of the location information notification terminal with a map or address. The present invention relates to a PHS location information search method managed in association with the PHS location information.

[0002]

2. Description of the Related Art Conventionally, in a communication terminal using PHS radio, there is a position information notifying terminal for transmitting information regarding position information where the terminal is located. When the terminal transmits the position information, the terminal performs a functional operation such as notifying each time according to an instruction from the monitoring center or activating the terminal by setting a time or a cycle set in advance in the terminal.

[0003]

For this reason, in the former, the monitoring center always sends a position information notification request from the monitoring center, and then the position information notification terminal notifies the position information. It is necessary to make a position information notification request for each terminal, which increases the load. In the latter case, the notification is performed at a predetermined cycle or the like, so that there is a problem that the notification cannot be performed at a time / cycle other than the setting.

[0004] It is an object of the present invention to provide a PHS position information search method that enables flexible management of position information on the monitoring center side.

[0005]

The main feature of the present invention is to set a notification cycle or a notification time of position information from a monitoring center to a terminal for notifying information about a position. As a result, it is possible to reduce the load on the monitoring center side and obtain information on the position of the position information notification terminal at an arbitrary opportunity.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a system configuration of a PHS position information search system using a position information notification terminal.
The location information notifying terminal (searched terminal) 1-1 is a base station 1-2 in the PHS wireless system, a public network 1-.
3 can be connected to the position information conversion center 1-4. The position information conversion center 1-4 converts “position information” such as ID (identification) information of the base station notified as position information of the position information notification terminal 1-1 into latitude / longitude information. The location information conversion center 1-4 is connected to the terminal location monitoring center 1-5 via the network 1-3, and the terminal location monitoring center 1-5 receives the latitude / longitude information obtained from the location information conversion center 1-4. Based on the location information notification terminal 1-1
The location information notification terminal 1-1 is managed by, for example, displaying a map of the location and its surroundings.

FIG. 2 shows an example of a functional configuration of the location information notification terminal 1-1. The notification time / notification period for notifying the position information is recorded in the notification period / notification time recording unit 2-1. The power supply is turned on / off by the power switch 2-2, and the control of the entire device is performed by the control unit. The driving power of the terminal is obtained from the battery 2-4, and the wireless communication of the PHS is performed by the wireless unit 2-5 via the wireless communication antenna 2-6.

FIG. 3 shows a functional configuration example of the position information conversion center 1-4. The whole control is performed by the control unit 3-1. The position information conversion unit 3-2 converts the information regarding the position notified from the position information notification terminal 1-1 and the received signal level into the terminal 1-1.
To the latitude / longitude information of the line interface unit 3-
3 is connected to the network 1-3. FIG. 4 shows a functional configuration example of the terminal location monitoring center 1-5. A search terminal management unit 4-1 manages a terminal to be searched, an input unit 4-2 such as a keyboard is provided, and a control unit 4-3 controls the whole, and receives latitude / longitude information from the position information conversion center 1-4. The location of the location information notifying terminal (searched terminal) 1-1 and its surroundings are displayed on a location display section 4-4 on a map or the like, and connected to the network 1-3 via a line interface section 4-5. .

FIG. 5 shows an example of a control sequence according to the present invention. In this embodiment, the terminal location monitoring center 1-5 sets the notification time and the notification cycle of the information related to the location information to the location information notification terminal 1-1, and then the designated notification from the location information notification terminal 1-1. This is a case where information or the like regarding the position is notified at a time or a fixed cycle, and information is transmitted without connection between the position information notification terminal 1-1 and the terminal position monitoring center 1-5 for call control. In FIG. 5, the base station 1-2 is included in the network 1-3 to simplify the description.

As shown in FIG. 5, first, a control operation is started by setting a notification cycle / notification time for notifying the position information by the position information notification terminal 1-1 from the terminal position monitoring center 1-5. . The terminal position monitoring center 1-5 has a management table as shown in FIG. 6 in which a notification cycle / time is recorded for each position information notification terminal being monitored. In this management table, for example, it is recorded that the terminal having the management number “1” has the telephone number “050-123-4567” and the notification cycle of “20 minutes”. , The phone number is "050-234-567"
8 "and the notification time is" 10:30, 12:00, 16: 4
0 minutes ”is recorded. Here, each setting of the notification cycle / notification time may be set by the input unit 4-2 according to the type of service using the position information. For example, when this position information search method is used for monitoring a wandering elderly person, the normal notification cycle may be long, but in an emergency, the notification cycle may be shortened. Further, in the case where a company manages sales representatives who are out of the office, there may be a case where a notification time is set (for example, 10:00 am, 1:00 pm, 3:00 pm, 5 pm, etc.) and used.

The management table shown in FIG. 6 is recorded in the search terminal management section 4-1 of the terminal location monitoring center 1-5, and a notification cycle / time is set for a specified terminal. The terminal position monitoring center 1-5 includes a search terminal management unit 4-1.
In order to set the notification cycle / time of each terminal recorded in
Through the control unit 4-3 and the line interface unit 4-5,
The setting information is notified to the position information notification terminal 1-1. In FIG. 5, this notification is made by call setting (1) for terminal 1-1. That is, the notification of the notification cycle / time of the position information is performed by using the “source subaddress” among the information elements used in the call control information (“call setting”). The call setting control signal (1) reaches the position information notification terminal 1-1 via the network 1-3 as it is, and the position information notification terminal 1-1 receives the "call setting" signal (1). ,
Necessary information is obtained from within the “source subaddress”. Therefore, a "call setting accepted" signal (2) is returned, and a call signal (3) indicating that the connection is established by this connection is notified. A control for connecting a call by a signal such as "call" or "answer", that is, control for setting a communication path is not performed, and a "disconnect" signal (4) is immediately transmitted, and thereafter "release".
(5) The call control is terminated by a signal such as "release complete" (6). According to this method, it is possible to notify the other party of the information included in the call control information (1) (in this case, the information related to the position set in the “sub-address”) without shifting to the communication state. There is no need to pay for communication. Further, in this description, the setting of the designated cycle / designated time is notified from the terminal location monitoring center 1-5, but may be issued from the location information conversion center 1-4.

FIG. 7 shows an example in which the notification cycle / time of the position information is entered into the call setting format (1) using the calling subaddress. FIG. 7 shows an example in which the "source subaddress" of the information element used for call control is extended and used. Until octet 3, "TCCJT-Q931-b simplified mobile phone system public base station-digital network interface layer 3 specification", "TTCJT-Q931 ISDN user / network interface layer 3 specification", "RCRS
TD-28 Second Generation Cordless Telephone System Standard "
This is the same as that specified in the above. That is, octet 1 indicates that this information is an originating sub-address information element identifier, octet 2 indicates the length of the contents of the originating sub-address to be connected subsequently, and octet 3 indicates the sub-address identification. Octet 4 and subsequent are examples set for this control, indicating whether octet 4 is set to “period setting” or “time setting”, and the example of FIG. 7 is an example in which a notification period is set. Octet 4 contains "1" to identify it.
000 0000 ”, and the value of the notification cycle is set in octet 5. In this example, since the period is set with 7 bits, a period of up to 127 minutes can be set. That is, when the octet 5 is 1000 0000, the notification period is 0 minute, and when the octet 5 is 111111111, the notification period is 127 minutes. Octet 4
Is 1000 0001 when the notification time is set.

FIG. 8 shows an example of a format for setting a notification time. As described above, octet 4 sets "1000 0001" indicating the time setting, and after octet 5, the time to be notified is recorded for each octet in "hour" and "minute". That is, one notification time is notified using two octets. In the example of FIG. 8, “10:30” is set for octets 5 and 6, and “12:00” is set for octets 7 and 8.
This is an example in which the time setting notification is made for "minute" and "16:40" in octets 9 and 10.

According to the above method, the terminal location monitoring center 1
The notification cycle / time of the position information notified to the position information notification terminal 1-1 from -5 is transmitted via the antenna 2-6, the radio unit 2-5, and the control unit 2-3 in the position information notification terminal 1-1. Then, it is recorded in the notification cycle / notification time storage unit 2-1. Next, a procedure for notifying location information from the location information notification terminal 1-1 will be described. In the position information notification terminal 1-1, the control unit 2-3 monitors the setting content of the notification period / notification time storage unit 2-1 in which the notification period / time of the position information is set. Then, when the designated notification cycle / time has come, the position information is notified. Since the location information notification terminal 1-1 does not have a key portion or the like for inputting a telephone number for transmitting to the location information conversion center 1-4, the location information conversion center 1-4 determined in advance by the location information search system is used. The telephone number is stored in the control unit 2-3. This method uses the control unit 2
-3 may be stored in a memory such as a flash memory or an EEPROM. Alternatively, when notifying the notification cycle / time described above from the terminal position monitoring center 1-5, the position information conversion center 1-4 to which the position information should be notified.
May be notified at the same time. Further, the telephone number of the call destination (position information conversion center 1-4) is recorded in advance in the position information notification terminal 1-1, and is set at the same time when the notification information / time setting information of the position information is received. Check with the phone number of the caller,
Notify location information only when phone numbers match,
In the case of a mismatch, security can be enhanced by adopting a method such as not sending the position information.

In the position information notification terminal 1-1, the control unit 2-3
Performs monitoring of the specified time period / time, and when the specified time comes, the preset position information conversion center 1
"Call setting" signal (7) for transmitting a telephone number of -4
(FIG. 5) is transmitted to the network 1-3 via the radio unit 2-5 and the antenna 2-6. At this time, as shown in FIG. 5, the position information notification terminal 1-1 sets the "calling subaddress" as an example among the information elements used in the call control information ("call setting" (7)) used at the time of calling. ID of the CS (base station) with which the terminal 1-1 is communicating (identification information: CS-I
D) and the received signal level at that time are set and transmitted.
At this time, the control method regarding the acquisition of CS-ID information or the reception signal level on the terminal side is “RCR ST
D-28 Second Generation Cordless Telephone System Standard ". Since the setting (7) control information reaches the position information conversion center 1-4 as it is via the network 1-3, necessary information can be notified without shifting to the communication state as described above. There is no need to pay for communication. That is, when the location information conversion center 1-4 receives the call setting (7), it acquires the CS-ID, reception level, and the like from the calling subaddress information, and immediately receives the call setting (8) and disconnects (9) the terminal 1-1. The terminal 1-1 sends a release signal (10) after receiving the disconnection signal (9), and sends a release completion (11) from the position information conversion center 1-4.

As for the information on the position, the control unit 2-3 receives a signal received from the CS around the position information notification terminal, which is input to the antenna 2-6 and the radio unit 2-5 of the position information notification terminal 1-1. Monitoring is performed, and the CS-ID and the received signal level are set in the "calling sub-address" of the call control signal. In this case, the PHS uses the location information notification terminal 1
-1 is communicating with other neighboring CSs
Of the position information conversion center 1-
4 can more accurately confirm the location of the location information notification terminal 1-1.

Regarding the method of specifying the location of the location information notification terminal 1-1, the location information conversion center 1-4 side
Since the position of each CS is known in advance, and the received signal level generally reflects the distance between the location information search terminal and the CS, it is based on the CS-ID sent from the terminal and the received signal level. Thus, the position of the terminal can be specified by a triangulation method or the like.

In this description, the CS-ID and the received signal level are notified as a pair, but a method of notifying only the CS-ID may be used. In other words, depending on the accuracy with which the location of the location information notification terminal 1-1 needs to be known, the reception level is also required. In the PHS, the service area of one base station has a diameter of 100 to 20 for example.
Since it is relatively narrow, about 0 m, if the location of the location information notification terminal only needs to be known in units of one base station service area, only the CS-ID needs to be notified.

FIG. 9 shows an example of information relating to position information notified from the position information notifying terminal 1-1 using the "calling subaddress" of the call control. In FIG. 9, up to octet 3 is a standard setting as described above, and octet 4 and thereafter are the contents of this notification. That is, an example is shown in which the octet 4 and thereafter set and notify three sets of the CS-ID of the base station with which the location information notification terminal 1-1 is communicating and the received signal level. In octet 4,
The number of pairs (length) of the CS-ID and the content of the received signal level is indicated. In octets 5 to 10, CS-ID1 is indicated. In octet 11, the received signal level from the base station of CS-ID1 is indicated. And the reception level are given to each of 6 octets and 1 octet. As described above, the position information is not limited to the case where the CS-ID and the received signal level are transmitted, and only the CS-ID may be notified.

In the location information conversion center 1-4, the location information conversion unit 3-2 receives the location information notification terminal 1-1 on a map or the like via the line interface unit 3-3 and the control unit 3-1.
The CS-ID and the received signal level acquired from the position information notifying terminal 1-1, which are the original information when displaying the location, are converted into latitude / longitude information. The information converted into the latitude / longitude information is notified from the position information conversion center 1-4 to the terminal position monitoring center 1-5. FIG. 10 shows a format example for notifying the latitude / longitude information. This is also the case where the “calling subaddress” of “call control” is used, and octet 4 to
In 8, the telephone number of the position information notification terminal 1-1 of the position information is set by two digits from the upper digit. In the example of FIG. 10, the telephone number “050-123-4567” is set. The latitude of the position information is set in octet 9, the minute is set in octet 10, and the second is set in octet 11, respectively.
FIG. 10 shows a case where 60 degrees, 30 minutes, and 20 seconds are set. Set longitude, minute, and second in the following three octets. FIG. 10 shows a case where 135 degrees, 25 minutes, and 40 seconds are set. The terminal location monitoring center 1-5 displays and confirms the location of the location information notification terminal 1-1 on the map from the notified latitude / longitude information and the telephone number for specifying the location information notification terminal 1-1. It becomes possible. As a result, the terminal location monitoring center 1-5 can determine where the location information notification terminal 1-1 is located. For example, in the case of a service for monitoring a wandering elderly person, the terminal You can know where you are.

The above is the content of one control for notifying the position information of the position information notification terminal 1-1. This operation is automatically repeated at a predetermined time / period to confirm the location of the person having the position information notification terminal (position information search terminal) 1-1 or to move by continuously monitoring. And so on. Next, a case where the notification cycle / time of the position information from the position information notification terminal 1-1 is changed will be described. Terminal location monitoring center 1
In -5, the location information notification terminal 1- 1
1 is set, and when it is to be changed, a predetermined change is made from the input unit 4-2 such as a keyboard, and the position information and the like are notified again to the position information notification terminal 1-1. Of the notification cycle / notification time can be changed.
The control sequence is exactly the same as that described in FIG. 5, and there is no control complexity.

In the above, the control method of the method of setting the notification cycle / time of the notification from the position monitoring center, the configuration of the position information notification terminal for notifying the position information, the method of notifying the position information, and the like in the present invention have been described. Various modifications are conceivable depending on the configuration of the device, the method of transmitting and receiving the control information, and the like. For example, the configuration of the position information notification terminal shown in FIG. 2 is described as a dedicated terminal without providing a call function in the configuration of this terminal.
It is also possible to adopt a configuration in which the function of the present invention is added as a control content in the configuration of the HS telephone. In addition, regarding the call control, the method of notifying the necessary information without giving a “response” to the “call setting” is adopted. May be notified. Alternatively, the notification cycle / time may be sent from the location information conversion center 1-4 to the location information notification terminal 1-1 and set in the terminal 1-1.

[0023]

As described above, according to the present invention, the trigger for notifying the information corresponding to the position where the location information notification terminal is located is set by the instruction from the terminal location monitoring center to the notification cycle or the notification time. Since it is possible, it becomes unnecessary to call the position information notification terminal as a position information notification request for each position information notification terminal with respect to the timing change of the position information acquisition on the monitoring center side, so that the load can be controlled with less load. As a result, position information acquisition control from the position information notification terminal can be flexibly handled according to the characteristics of the service.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration example of a PHS position information search system.

FIG. 2 is a block diagram showing a functional configuration example of a position information notification terminal 1-1.

FIG. 3 is a block diagram showing a functional configuration example of a position information conversion center 1-4.

FIG. 4 is a block diagram showing an example of a functional configuration of a terminal location monitoring center 1-5.

FIG. 5 is a diagram showing an example of a control sequence according to the present invention.

FIG. 6 is a diagram showing an example of a notification cycle / notification time management table for each position information notification terminal of the terminal location monitoring center 1-5.

FIG. 7 is a view showing an example of a format for setting a notification cycle.

FIG. 8 is a diagram showing a format example for setting a notification time.

FIG. 9 is a diagram showing an example of a format for notifying a CS-ID and a reception level from a location information notification terminal.

FIG. 10 is a diagram showing an example of a latitude / longitude information format notified from a position information conversion center 1-4 to a terminal position monitoring center 1-5.

Claims (1)

[Claims] An information for identifying a PHS radio base station receiving a radio wave is notified to a position information conversion center as position information, and based on information from the position information conversion center,
In the method of monitoring the position of the location information notification terminal by a terminal location monitoring center, the location information conversion center or the terminal location monitoring center notifies the location information notification cycle or time for each location information notification terminal, A PHS position information search method, wherein position information is notified to the position information conversion center at a period or a time when the terminal is notified.