JP2001069554A - Radio terminal system and terminal apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To accurately grasp the position of the carrier of a terminal device, even if a searcher is located at an undefined place, such as its outing destination by notifying a selective call receiver of the positional information on the terminal device from a control station via a transmitting-side system. SOLUTION: A search cooperator, who is previously authorized accesses a data base 1 via a subscriber/public telephone set 5. At this time, the data base 1 notifies the search cooperator of the position of a radio terminal 6 in voices. The base 1 also notifies a selective call receiver 9 that is carried by a searcher and stored previously (or set by the search cooperator when an inquiry is received from the telephone set 5) of the position registration information on the terminal 6 via the transmitting-side system o the receiver 9. The searcher learns of the position of the carrier of the terminal 6 by looking at the zone number or area name, which is shown on the display part of the receiver 9 and shows the position of the terminal 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless terminal system and a terminal device capable of searching for a carrier of a terminal device using a low-power microcell wireless telephone system such as a PHS system. The present invention relates to a wireless terminal system and a terminal device that can accurately grasp the position of a person carrying the terminal device even when a person is in an undetermined place such as a place to go.

[0002]

2. Description of the Related Art In recent years, wireless telephone systems of a low-power micro-cell type such as a PHS system have become widespread. Here, an outline of the PHS system will be described with reference to FIG. FIG. 10 is a system schematic configuration diagram of the PHS system. As shown in FIG. 10, the PHS system includes a wireless terminal 6 as a slave unit of a digital cordless telephone, a base station 3 for setting and controlling a wireless circuit of the wireless terminal 6 in the cell 7, a base station 3 A switch 2 connected by a line for controlling switching of line connection, a database (PHS system service control station) 1 for managing various information required for services, and a subscriber telephone / public telephone 5 connected to a public line It is composed of The database 1, the exchange 2, and the base station 3 are connected via a digital network 4.

[0003] By installing the base station 3 of the cell 7 which is a very small zone in an area where users gather, and connecting to the digital network 4, the wireless terminal 6 usually used in homes and offices can be used. It can be taken out and used outdoors, providing an economical service for the user. As a result, a wireless access system is newly added to the digital network 4, and diversification of services accompanying diversification of access is expected.

A major feature of the PHS system is that the radius of the cell 7 (base station area) is smaller than that of a conventional car phone or mobile phone because the microcell technology is adopted. While the cell radius of a mobile phone is 1.5 to several kilometers, that of a PHS system is about 100 to 200 m. Thus, by reducing the cell radius, it is possible to accommodate a large amount of traffic.

On the other hand, in order to provide a continuous service area with a small cell radius, a large number of base stations 3 must be installed. For example, the number of base stations for car telephones is about 200 in Tokyo, while the number of base stations 3 for PHS systems is in the thousands or tens of thousands in the 23 wards or on the Yamanote Line.

However, since the base station 3 is sufficiently small and can be installed on a wall surface, a ceiling, a telephone pole, a traffic light at an intersection, a telephone booth, etc., it is possible to provide a wide range of services including a closed area such as an underground mall or a building. You can do it.

Next, an example of the configuration of the wireless terminal 6 is shown in FIG.
This will be described with reference to FIG. FIG. 11 is a configuration block diagram illustrating a configuration of the wireless terminal 6. As shown in FIG. 11, the wireless terminal 6 includes an antenna 28 and a wireless unit 11 as a transmitting / receiving unit.
, A modulator 12 that performs π / 4 shift QPSK modulation, a demodulator 13 that performs synchronous detection, and a TDMA (Time Division
A TDMA-TDD synchronization control circuit 14 for performing synchronization control of Multi Access) and TDD (Time Division Duplex);
AD that performs mutual conversion between voice data and digital data
PCM audio codec 15, microphone 17 as an audio input unit, and amplifying a signal from microphone 17 to ADPC
Microphone amplifier 16 for outputting to M voice codec 15
, A speaker 19 as an audio output unit, and an amplifying signal from the ADPCM audio codec 15
, A keyboard 21 as an input unit, a display device 22 for displaying a telephone number, an incoming message, and the like input from the keyboard 21, and a human interface such as the keyboard 21 and the display device 22. CPU 20, RAM 23, CPU 2
0, a ROM 25 for storing a control program for the local station, an EEPROM 25 for storing the own station number, a power supply (battery) 26 for supplying power to the entire apparatus, and a protocol control circuit 27 for controlling a layer 2 protocol. .
The antenna power radiated from the antenna 28 is 10 m
Very small, W or less, which is a feature of the microcell system.

Next, a position registration operation in the wireless terminal 6 will be described with reference to FIG. FIG. 12 shows the wireless terminal 6
It is a state transition diagram which shows the operation state in. As shown in FIG. 12, when the power is turned on from the power-off state (100), the control channel selecting operation (101) is performed.

In this control channel selection, after establishing synchronization on an arbitrary control channel, it is determined whether or not a standby transition condition such as a standby zone selection level is satisfied. The channel is set to the channel selection OK, and the process shifts to the standby state (102). However, if the standby condition is not satisfied, control channel selection is performed again as channel selection NG.

In the standby state (102), the following operation is performed. First, a level difference between the holding level (control channel level) of the standby zone and the reception level is obtained, and the presence or absence of zone shift is determined according to the value. Secondly, if it is determined in the above determination that there has been a zone transfer, a location registration operation (103) is performed on the base station 3. This location registration operation notifies the base station that manages the zone that the wireless terminal 6 is in the zone (cell) to which the wireless terminal 6 has shifted, and the base station transmits the location information via the exchange 2 based on the notification. The information is output to the database 1 and the location information is stored and managed in the database 1. Third, if there is an incoming call, the incoming call processing (105)
Fourth, when there is a call operation, the outgoing call processing (10
4) is to be performed.

Here, the location registration operation will be specifically described. When the zone shifts from the standby state (102), the state changes to the control channel selection state (101).
2), and immediately transits to the location registration state (103). However, when the wireless terminal 6 stores valid location registration reception information (operator identification code and paging area number), the location registration information on the base station side is known, so that the location registration state is set. No transition is required.

The location registration reception information becomes valid from the time when the location registration is successful and the location registration reception information is recorded, and as long as the wireless terminal 6 stays in the same general call area, The stored location registration reception information is valid.

The location registration operation is performed when the wireless terminal 6 does not store the location registration reception information of the base station that succeeded in the location registration last, such as immediately after power-on, or when the zone shifts. This is performed when the location registration reception information of the base station that has succeeded in the last location registration and the base station information coming from the currently synchronized base station are different.

As described above, when radio waves are transmitted from the wireless terminal 6 to the base station 3, the power consumption of transmitting radio waves from the wireless terminal is minimized during a call and during location registration. The power consumption of the battery is suppressed, and a long standby time is enabled.

The wireless telephone system and the terminal device of the PHS system are mainly for realizing a telephone call using the terminal device, and by using this system, it is possible to search for a carrier of the terminal device. A wireless terminal system and a terminal device have been proposed (see Japanese Patent Application Laid-Open No. Hei 9-135474).

Hereinafter, a wireless terminal system and a terminal device for searching for a carrier of the terminal device will be described with reference to the drawings. First, the schematic configuration of this wireless terminal system is as follows:
As with the conventional PHS system shown in FIG.
Database 1 of the system service control station and exchange 2
And a digital network 4 comprising a PHS system base station 3, a wireless terminal 6, and a subscriber / public telephone 5 connected to the exchange 2. Here, the subscriber / public telephone 5, the exchange 2, and the base station 3 are the same as those of the conventional PHS.
It is exactly the same as the system.

The database 1 stores and manages information (position registration information) whose position has been registered by the wireless terminal 6 in the same manner as in the prior art. In response to
The position registration information stored in the database 1 can be provided. The wireless terminal 6 is a wireless terminal that removes a call function from a conventional PHS wireless terminal and performs only a location registration operation.

Next, the configuration of the wireless terminal 6 will be described with reference to FIG.
I will explain using. FIG. 13 is a configuration block diagram of the wireless terminal 6. Parts having the same configuration as in FIG. 11 are described with the same reference numerals. The wireless terminal 6 is obtained by removing components for realizing a call in a conventional wireless terminal. Specifically, the antenna 28 has a pair of housings similar to the conventional one, the wireless unit 11, the π / 4 shift QPSK, and the like. Modulator 12, synchronous detection demodulator 13, TDMA-TDD synchronous control circuit 14, protocol control circuit 27, CPU
30, a RAM 23, a ROM 24, and an EEPROM 2
5 and a power supply 26. Note that the wireless terminal 6
Are exactly the same as those in the related art, and a detailed description thereof will be omitted.

Next, the operation of the wireless terminal 6 will be described with reference to FIG.
I will explain using. FIG. 14 is a state transition diagram illustrating an operation state of the wireless terminal 6. The operation of the wireless terminal 6 is almost the same as that of the related art. As shown in FIG. 14, when the power is turned on from the power OFF state (200), the wireless terminal 6 enters the control channel selection state (201) and satisfies the standby transition condition. If the channel selection is OK, the mobile terminal shifts to the standby state (202), and determines whether or not there is a zone shift based on the level difference between the control channel holding level and the reception level. Then, the location is registered (203).

Here, the location registration means that the location registration information transmitted by the wireless terminal 6 is registered by registering that the wireless terminal 6 is in the cell of the base station 3 to which the zone shifts, as in the prior art. , Are stored and managed in the database 1 from the base station 3 via the exchange 2. And
A previously authorized searcher accesses the database 1 from, for example, a subscriber / public telephone 5 connected to the exchange 2 to know the current position (zone or cell) from the position registration information of the wireless terminal 6. Is available.

According to the above-mentioned radio terminal, since the components and means related to the call of the conventional PHS radio terminal are removed and only the part related to the location registration is left, an inexpensive and small radio terminal can be realized. effective. Also,
The exchange 2 and the base station 3 on the PHS system service side can be used without any modification of the existing infrastructure equipment.
This has the effect of expanding the range of use of the HS system.

An example of effective use of the wireless terminal system is monitoring the position of a wandering elderly person. recent years,
With the advent of the aging society, the dementia of the elderly has become a social problem, and as a measure against wandering, which is one of the behavior patterns of the elderly with dementia, the wireless terminal 6 is carried by the wandering elderly, Each time the wireless terminal 6 shifts to the zone of the PHS system, the wireless terminal 6 performs location registration, and the current location is stored in the database 1. Then, a searcher (family or the like) who is allowed in advance accesses the database 1 and obtains the mobile person (wandering elderly) from the position registration information of the wireless terminal 6.
It can be quickly rescued by recognizing the current position (zone) of the person, which is very effective from the viewpoint of geriatric nursing.

Further, since the PHS system is used, the current position of the wireless terminal can be recognized in a narrow zone having a radius of 100 to 200 m. Further, unlike the mobile phone, the PHS system can be used even in an underground mall or a building. Since the position registration is performed, there is an effect that the position of the wireless terminal 6 can be confirmed even when the person carrying the wireless terminal 6 is in an underground mall or a building.

Here, the case where the wandering elderly person carries the wireless terminal of the present invention has been described, but other examples of the person who carries the wireless terminal include infants, animals, and the like who want to grasp the location of the wireless terminal. Many adaptations are possible. Furthermore, when the first terminal device is used integrally with the means for transporting goods such as luggage, the location of the goods such as luggage can be easily grasped, and there is an effect that an efficient new collection and delivery system can be realized.

[0025]

However, in order to obtain the location information of the person carrying the terminal device using the above-mentioned conventional wireless terminal system and terminal device, a searcher needs to enter a database from a subscriber telephone or a public telephone into a database. There is a problem in that access is required and the user must be in a place where a subscriber telephone is installed (for example, at home) or in a place where a public telephone is installed.

Further, since the position information of the person carrying the terminal device is notified by voice transmitted from a subscriber telephone or a public telephone, it is difficult to hear the voice due to ambient noise and the like, particularly when accessing the database from the public telephone. There was a problem that sometimes.

The present invention has been made in view of the above circumstances, and is a wireless terminal system and a terminal device capable of searching for a carrier of a terminal device using a wireless telephone system such as a PHS. It is an object of the present invention to provide a wireless terminal system and a terminal device capable of accurately grasping the position of a person carrying the terminal device even when the user is in an undetermined place such as a place to go.

[0028]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems of the conventional example, the invention according to claim 1 comprises a mobile terminal, a base station for transmitting and receiving to and from the terminal in a zone, In a wireless terminal system having a control station that manages information obtained from the base station, the terminal device is a terminal device that informs a base station that it is in a shifted zone in the case of zone shift, The station is a base station that transmits position information to the control station in response to the notification from the terminal device, the control station is a control station that outputs the position information of the terminal device managed in response to an inquiry, The control station is connected to a transmission system of a selective paging receiver for transmitting to a mobile selective paging receiver, and the position information of the terminal device from the control station is transmitted to the transmission system of the selective paging receiver. Characterized in that the selective call receiver is notified via the search caller, the searcher possessing the selective call receiver, the search cooperator inquires to the control station, such as going out of place In place,
The position of the person carrying the terminal device can be accurately grasped.

[0029] In order to solve the above-mentioned problems of the conventional example, the invention according to claim 2 is obtained from a mobile terminal, a base station for transmitting and receiving to and from the terminal in a zone, and a base station. A terminal device used in a wireless terminal system having a control station that manages received information, the terminal device comprising: a destination storage means for storing a call number of a specific selective call receiver in advance; And a position notifying means for calling a call number of the selective call receiver stored in the storage means via a transmitting side system of the selective call receiver connected to the control station and notifying positional information. Receiving a specific message transmitted via the base station and executing the position notification means when the received message matches with the message stored in the internal storage, and searching for a portable telephone having a selective call receiver. Person By searching collaborators send specific message to the terminal device via the base station, even in indefinite places go like, it is possible to accurately grasp the wearer of the position of the terminal device.

[0030] In order to solve the problems of the above-mentioned conventional example, the invention according to claim 3 is obtained from a mobile terminal device, a base station for transmitting and receiving to and from the terminal device in a zone, and the base station. A terminal device used in a wireless terminal system having a control station that manages received information, the terminal device comprising: a destination storage means for storing a call number of a specific selective call receiver in advance; The call number of the selective call receiver stored in the storage means is transmitted via the transmitting side system of the selective call receiver connected to the control station, and a position notifying means for notifying position information, and a timer are provided. The location notification means is executed at regular time intervals using the timer, and the searcher possessing the selective call receiver is located at an undetermined place such as a place to go. Also, it is possible to periodically and accurately grasp the wearer of the position of the terminal device.

[0031] In order to solve the above-mentioned problems of the conventional example, the invention according to claim 4 is obtained from a mobile terminal, a base station for transmitting and receiving to and from the terminal in a zone, and the base station. A terminal device used in a wireless terminal system having a control station that manages received information, the terminal device comprising: a destination storage means for storing a call number of a specific selective call receiver in advance; A call number of the selective call receiver stored in the storage means, a call is transmitted through a transmission side system of the selective call receiver connected to the control station, and position notifying means for notifying position information; Zone storage means for storing a zone, and when the zone is moved out of a specific zone stored in the zone storage means in the case of zone transfer, the position notification means is executed. The searcher possessing the selective call receiver can automatically and accurately grasp that the terminal device carrier has moved to a specific area even in an undetermined place such as when going out. it can.

In order to solve the above-mentioned problems of the conventional example, the invention according to claim 5 can be obtained from a mobile terminal, a base station for transmitting and receiving to and from the terminal in a zone, and the base station. A terminal device used in a wireless terminal system having a control station that manages received information, the terminal device comprising: a destination storage means for storing a call number of a specific selective call receiver in advance; A call number of the selective call receiver stored in the storage means, a call is transmitted through a transmission side system of the selective call receiver connected to the control station, and position notifying means for notifying position information; Zone storage means for storing a zone, and in the case of a zone transfer, when a specific zone stored in the zone storage means is entered, the position notification means is executed. The searcher possessing the selective call receiver can automatically and accurately grasp that the terminal device carrier has moved to a specific area even in an undetermined place such as when going out. it can.

[0033] In order to solve the problems of the above-mentioned conventional example, the invention according to claim 6 is obtained from a mobile terminal apparatus, a base station for transmitting and receiving to and from the terminal apparatus in a zone, and a base station. A terminal device used in a wireless terminal system having a control station that manages received information, the terminal device comprising: a destination storage means for storing a call number of a specific selective call receiver in advance; A position notifying unit for calling a call number of the selective call receiver stored in the storage means via a transmitting side system of the selective call receiver connected to the control station and notifying positional information; A mode switch for performing mode switching of the operation mode; and a zone storage means for storing a zone to which the terminal device has shifted in the learning mode. In the case of a shift to a zone, when the position is outside the zone stored in the zone storage unit, the position notification unit is executed, and it is necessary to set a zone in which the position notification unit is to be executed in advance. In addition, the searcher who possesses the selective call receiver can improve the convenience, and even in an undetermined place such as when going out, a specific case where the person carrying the terminal device does not normally enter The fact that the user has moved to the area can be automatically and accurately grasped.

[0034]

Embodiments of the present invention will be described with reference to the drawings. The wireless terminal system according to the embodiment of the present invention is a case of searching for a carrier of the wireless terminal using a wireless telephone system such as a PHS, even if the searcher is in an undetermined place such as where to go out, It enables the location of the person carrying the wireless terminal to be accurately grasped. When a control station that manages the position information of the wireless terminal is inquired from a subscribed telephone / a public telephone, the control station is informed of the wireless terminal to be inquired. While transmitting the position information of the wireless terminal to the selective call receiver via the transmitting side system of the selective call receiver connected to the control station, and having the selective call receiver. The searcher is notified of the position of the person carrying the wireless terminal.

Further, the terminal device according to the embodiment of the present invention is for a case where a carrier of a wireless terminal is searched for using a wireless telephone system such as a PHS. In this case, the location of the person carrying the wireless terminal can be accurately grasped. The wireless terminal includes a destination storage means for storing in advance a call number of a specific selective call receiver, and a destination storage means. Location calling means for calling the calling number of the selective call receiver stored in the means via the transmitting side system of the selective call receiver, and notifying the position of the wireless terminal. When a specific message is received from a public telephone via the base station, the position notifying means is executed, and the position notifying means is executed at regular time intervals. By position Executing the notifying means, and executing the position notifying means at a time other than the zone obtained by learning in the zone storage means of the wireless terminal, and informing the searcher possessing the selective call receiver of the position of the wireless terminal carrier. To inform.

First, a schematic configuration of the wireless terminal system according to the first embodiment of the present invention will be described with reference to FIG. FIG. 1 is a schematic configuration diagram illustrating the wireless terminal system according to the first embodiment. As shown in FIG. 1, the wireless terminal system according to the first embodiment includes a first system similar to a conventional wireless terminal system, and a transmitting side system 8 of a selective call receiver connected to the system. Have been.

The first system is a digital network 4 comprising a database 1 of a PHS system service control station, an exchange 2, and a base station 3 of a PHS system, as in the conventional radio terminal system shown in FIG. And the wireless terminal 6
And a subscriber / public telephone 5 connected to the exchange 2.

On the other hand, the transmission side system 8 of the selective call receiver is a base station 8 for setting and controlling a radio circuit with a movable selective call receiver 9 having a display function such as a pager.
2 and an exchange 81 connected to the base station 82 by a digital line and performing exchange control of the line connection.
The database 1 of the first system is connected to the transmitting side system 8 of the selective call receiver, via which
Transmission to the selective call receiver 9 is possible.

Next, each part of the first system will be briefly described. The subscriber / public telephone 5, the wireless terminal 6, the exchange 2
And the base station 3 is completely the same as the conventional one, and the description is omitted. The database 1 stores and manages information (location registration information) registered by the wireless terminal 6 in the same manner as in the related art. In response to an inquiry from the telephone 5, the location registration information stored in the database 1 is provided, and at the same time, the location registration information can be notified to the selective call receiver 9 via the transmitting side system 8 of the selective call receiver. It has become. The selective call receiver 9 to which the location registration information of the wireless terminal 6 is notified may be specified in advance in the database 1 or may be set by an operation from the subscriber / public telephone 5 at the time of inquiry. Conceivable.

The search for the carrier of the wireless terminal 6 by the first system is performed by a searcher possessing the selective call receiver 9 and a search cooperator such as a family cooperating with the searcher.
It is performed as follows. First, a search cooperator who is permitted in advance accesses the database 1 from the subscribed / public telephone 5. At this time, the database 1 notifies the search cooperator of the position information of the wireless terminal 6 by voice. At the same time, the database 1 selects the selective call receiver 9 stored in advance (or set by the search cooperator by the operation at the time of inquiry from the subscriber telephone / public telephone 5) and possesses the selective call receiver 9. The location registration information of the wireless terminal 6 is notified via the transmission side system of the paging receiver. Then, the searcher can know the position of the person carrying the wireless terminal 6 by looking at the zone number or area name indicating the position of the wireless terminal 6 displayed on the display unit of the selective call receiver 9.

At this time, if the searcher and the search cooperator preliminarily decide on the timing and the number of times of accessing the database 1, the searcher can carry the mobile terminal 6 even in an undetermined place such as when going out. It is possible to know the position of the person, and to save the trouble of searching for a public telephone to access the database 1 by himself when going out. In addition, the searcher looks at the position information displayed on the display unit of the selective call receiver 9, and finds the wireless terminal 6.
The position of the carrier can be accurately grasped.

At this time, the search cooperator also makes the database 1
When inquiring to the user, the position information of the person carrying the wireless terminal 6 can be known, so that the position information of the person carrying the wireless terminal 6 can be grasped by a plurality of persons, and the position monitoring of the person carrying the wireless terminal 6 can be reliably performed. Performance can be improved. Also,
At this time, if the search cooperator repeatedly accesses the database 1 from the subscribed / public telephone 5, the searcher sees the position information sequentially notified to the selective call receiver 9 and performs a more efficient search. It can be carried out.

According to the wireless terminal system of the first embodiment, if a search cooperator permitted in advance makes an inquiry from the subscriber / public telephone 5 to the database 1, the selective call receiver possessed by the searcher is obtained. Since the position information of the wireless terminal 6 is notified to the user 9, the searcher can accurately grasp the position of the person carrying the wireless terminal 6 even in an undetermined place such as a place to go.

As the selective call receiver 9, an inexpensive and small device such as a pager which is generally widely used can be used, and existing equipment can be used without modification.

As an example of effectively using the wireless terminal system of the first embodiment, there is a position monitoring of a wandering elderly person as in the related art. In recent years, with the advent of an aging society, dementia of the elderly has become a social problem, and as a measure against wandering, which is one of the behavior patterns of the elderly with dementia,
The wandering elderly person carries the wireless terminal 6 of the first embodiment,
Each time the zone of the PHS system is shifted during wandering, the wireless terminal 6 performs position registration, and the current position is stored in the database 1.

The searcher carries the selective call receiver 9 and searches while moving outdoors, and a search cooperator, such as a family member who has been permitted in advance, makes a telephone call at home or pays at a public telephone. If the user repeatedly accesses the database 1, the user can see the position information of the wireless terminal 6 that is sequentially notified and displayed to the selective call receiver 9, and can accurately grasp the position of the carrier (wandering old man), so that the person can be quickly rescued. Yes, it is very effective from the viewpoint of geriatric nursing.

Here, the case where the wandering elderly person carries the wireless terminal of the present invention has been described. Many adaptations are possible if you want to know. Furthermore, when the first terminal device is used integrally with the means for transporting goods such as luggage, the location of the goods such as luggage can be easily grasped, and there is an effect that an efficient new collection and delivery system can be realized.

Next, the configuration of the wireless terminal system and the terminal device according to the second embodiment of the present invention will be described with reference to FIG. FIG. 2 is a configuration block diagram of a wireless terminal (second terminal device) according to the second embodiment. Parts having the same configuration as in FIG. 13 are described with the same reference numerals. The second terminal device is a conventional wireless terminal 6
Basically the same configuration as the above, a pair of housing antennas 2
8, a radio unit 11, and a π / 4 shift QPSK modulator 12
, Synchronous detection demodulator 13, TDMA-TDD synchronization control circuit 14, protocol control circuit 27, CPU 40
, RAM 23, ROM 24, and EEPROM 25
, A power source 26, and a destination storage means 41 for newly storing a call number of a specific selective call receiver 9. However, the CPU 40 in the second terminal device,
The functions are slightly different from those of the conventional CPU 30.

Each part of the second terminal device will be described, but the description of the same parts as in the prior art will be omitted. The destination storage means 41 is a non-volatile RAM, in which a call number of a specific selective call receiver to be notified of the position of the wireless terminal 6 is stored in advance. The CPU 40
When the program read from the ROM 24 is executed,
In addition to the location registration means for performing location registration immediately after the power is turned on and when the zone is shifted, it is determined whether or not a signal transmission command transmitted from the authorized person via the subscriber telephone / public telephone 5 has been received. A received message determining means and a position notifying means for notifying a position when a signal transmission command is received are executed.

The location notifying means includes a destination storage means 41
Is called, and the zone number of the zone to which the wireless terminal 6 currently belongs is checked. Since the process of checking the zone number has already been described, the description is omitted. And
The zone number is transmitted, and when the transmission is completed, the call is disconnected.

Next, the operation of the second terminal device will be described with reference to FIG.
I will explain using. FIG. 3 is a state transition diagram showing an operation state of the second terminal device. As shown in FIG. 3, when the power is turned on from the power OFF state (300), the second terminal device enters the control channel selection state (301), and satisfies the standby transition condition and selects the channel. If so, the mobile terminal shifts to the standby state (302), determines whether or not there is a zone shift from the level difference between the control channel holding level and the reception level, and if there is a zone shift, performs location registration with the base station 3. It moves to the position registration state (303). Up to this point, the operation is the same as in the first embodiment. Then, when a signal transmission command is received in the standby state (302), the state shifts to the position notification state (304), and the position notification means is executed, and the wireless terminal 6 is transmitted to the selective call receiver 9 set in advance. Is notified of the zone number.

Next, the operation of the wireless terminal system which calls a specific selective call receiver 9 via the PHS network and the transmitting side system 8 of the selective call receiver and transmits a message will be described. When the position notification means is executed by the CPU 40, the call number of the selective call receiver 9 stored in the destination storage means 41 is called, and a line is established. Then, the zone number to which the wireless terminal 6 currently belongs is transmitted through the established line via the wireless unit 11 and the antenna 28. When the transmission is completed, the line is disconnected.

Next, the processing in the standby state of the CPU 40 of the second terminal device will be described with reference to FIG. FIG. 4 is a flowchart illustrating a flow of a process in a standby state of the CPU 40 of the second terminal device. In the processing in the standby state of the CPU 40 of the second terminal device, it is determined whether or not a signal transmission command has been received (401), and if received (Yes), the position notification unit is executed to notify the position (402). ) And then perform standby processing (40
3) Return to the process 401. In the standby process, the zone migration is monitored, and when the zone is migrated, the location registration process is performed.

The search for the carrier of the wireless terminal 6 by the second system is performed by a searcher possessing the selective call receiver 9 and a search cooperator such as a family cooperating with the searcher.
It is performed as follows. First, when a search cooperator who is permitted in advance accesses the database 1 from the subscriber telephone / public telephone 5, the database 1 is stored in advance (or when the search cooperator makes an inquiry from the subscriber telephone / public telephone 5). To the selective call receiver 9 possessed by the searcher via the transmitting side system of the selective call receiver. Then, the searcher can know the position of the person carrying the wireless terminal 6 by looking at the zone number or area name indicating the position of the wireless terminal 6 displayed on the display unit of the selective call receiver 9.

At this time, if the timing and the number of times of accessing the database 1 are previously determined between the searcher and the search cooperator, the searcher can carry the wireless terminal 6 even in an undefined place such as when going out. It is possible to know the position of the person, and to save the trouble of searching for a public telephone to access the database 1 by himself when going out.

Further, by looking at the position information displayed on the display unit of the selective call receiver 9, the searcher can accurately grasp the position of the person carrying the wireless terminal 6. In addition, at this time, the subscriber telephone / public telephone 5
If the searcher repeatedly accesses the database 1, the searcher can perform a more efficient search by looking at the position information sequentially notified to the selective call receiver 9.

According to the wireless terminal system according to the second embodiment, when a search cooperator who is permitted in advance transmits a signal transmission command from the subscriber / public telephone 5 to the wireless terminal 6, the wireless terminal 6 receives the command. 6 executes the position notifying means and notifies the selective call receiver 9 stored in the destination storage means 41 in advance of the position information (zone number) of the wireless terminal 6, so that the selective call receiver 9 is possessed. There is an effect that the searcher who is performing can accurately grasp the position of the person carrying the wireless terminal 6 even in an undefined place such as a place to go.

Next, a radio terminal system and a terminal device according to a third embodiment of the present invention will be described with reference to FIGS. FIG. 5 is a configuration block diagram of a wireless terminal (third terminal device) according to the third embodiment.
FIG. 11 is a flowchart illustrating a flow of a process in a standby state of the third terminal device.

The third terminal device is basically the same as the second terminal device as shown in FIG. 5, and includes a pair of antennas 28, a radio unit 11, and a π / 4 shift QPSK modulation. , A synchronous detection demodulator 13, a TDMA-TDD synchronization control circuit 14, a protocol control circuit 27, a CPU 5,
0, RAM 23, ROM 24, and EEPROM 25
, A power supply 26, and a destination storage means 41,
A timer 29 for counting a predetermined time interval is newly provided. However, the CPU 50 in the third terminal device
Is slightly different from the CPU 40 of the second terminal device.

The components of the third terminal device will be described, but the description of the same portions as the conventional and second terminal devices will be omitted. The timer 29 counts a certain time in order to execute the position notification means at a certain time interval. When the CPU 50 enters the standby state, the CPU 50 monitors the time using the timer 29, and executes the position notification means at regular time intervals. Here, the operation of the position notifying means is the same as that of the position notifying means of the second terminal device.

Specifically, in the standby state of the CPU 50 of the third terminal device, as shown in FIG. 6, it is determined whether a predetermined time has elapsed (501), and only when the predetermined time has elapsed, the position notifying means is executed. Then, the location is notified (502), a standby process is performed (503), and the process returns to 501. still,
In the stand-by process (503), a zone shift is monitored, and when the zone is shifted, a location registration process is performed.

According to the wireless terminal system according to the third embodiment, the wireless terminal 6 executes the position notifying means at fixed time intervals, and the selective call receiver 9 stored in the destination storage means 41 in advance. To the location information (zone number) of the wireless terminal 6, the searcher possessing the selective call receiver 9 periodically determines the location of the person carrying the wireless terminal 6 even in an undetermined place such as when going out. There is an effect that the target can be grasped accurately and accurately.

Next, a fourth embodiment of the present invention will be described. Note that the terminal device (fourth terminal device) according to the fourth embodiment of the present invention is the same as the second terminal device shown in FIG.
The description will be given with reference to FIG. 2 only for the OM 24 and the CPU 40.

The ROM 24 stores one or more zone numbers corresponding to the zones in advance. The ROM 24 is a storage unit that retains its contents even when the power is turned off, and may be the EE-PROM 25 or the nonvolatile RAM 23. CPU40
Has a flag for a condition for executing the position notifying means. As shown in FIG. 7, it monitors whether or not the zone has been shifted, and refers to the flag and the ROM 24 when a specific condition is satisfied. , For executing the position notifying means.
FIG. 7 is a flowchart illustrating the operation of the CPU 40.

Specifically, the CPU 40 monitors whether or not the zone has been shifted (601). If there is no zone shift (if NO), the CPU 40 continues to monitor. (If YES), ROM 24
It is determined whether or not the new zone (the zone after the shift) is the zone in which the position notifying means should be executed with reference to (60).
2) If the zone is to execute the position notifying means (if YES), execute the position notifying means (60).
3) Returning to the processing 601, if it is not the zone in which the position notifying means should be executed in the processing 602 (if NO), the processing returns to the processing 601 without doing anything.

The process 602 will be described in more detail. A flag is provided for a condition for executing the position notifying means. When this flag is set, when the terminal goes out of the zone stored in the ROM 24, the flag is set. ,
It can be set to execute the position notification means. In such a case, the CPU 40 refers to the zone number of the zone after the transfer and the ROM 24 and determines that the zone after the transfer is R
It is determined whether the zone is stored in the OM 24. If it is stored, it is determined that it is not the zone where the position notifying means should be executed, and if it is not stored, it is determined that it is the zone where the position notifying means should be executed.

If the flag relating to the condition for executing the position notifying means is not set, the terminal
Can be set to execute the position notifying means when entering the zone stored in. In such a case, the CPU 40 determines the zone number and R
With reference to the OM 24, it is determined whether or not the post-migration zone is a zone stored in the ROM 24. if,
If it is stored, it is determined that the zone is one where the position notifying means should be executed, and if not, it is determined that it is not the zone where the position notifying means should be executed. The setting of the flag may be reversed.

Next, the operation of the wireless terminal system according to the fourth embodiment will be described. When the terminal enters a zone stored in the ROM 24, An example will be described in which the setting is to execute the means. When the wireless terminal 6 shifts the zone, the CPU 40 compares the zone number stored in the ROM 24 and the zone number after the shift one by one. Here, if there is a match, the position notifying means is executed, and the position information (zone number) of the wireless terminal 6 is notified to the selective call receiver 9 stored in the destination storage means 41 in advance. You.

According to the wireless terminal system according to the fourth embodiment, when the wireless terminal 6 shifts from one zone to another,
U40 compares the zone number after migration with the zone number stored in ROM 24, and the person carrying wireless terminal 6 is out of a specific area specified by the zone number stored in ROM 24, or Since it is determined whether or not the user has entered a specific area, the location notification unit is executed, and the location information (zone number) of the wireless terminal is notified to the selective call receiver 9 stored in the destination storage unit 41 in advance. The searcher possessing the selective call receiver can automatically and accurately grasp that the carrier of the wireless terminal 6 has moved to a specific area even in an undetermined place such as when going out. This has the effect.

In particular, when the wireless terminal 6 is carried by a wandering elderly or a toddler, a safety area or a danger area is set in advance, and only when the wandering aged or infant moves to the danger area, the searcher can be provided. Since the whereabouts are automatically notified, there is no need to constantly monitor the behavior of the wandering elderly or infant, which has the effect of reducing the burden on the searcher.

Next, a fifth embodiment of the present invention will be described. Each part of the terminal device (fifth terminal device) according to the fifth embodiment of the present invention will be described with reference to FIG. FIG. 8 is a configuration block diagram of a fifth terminal device of the present invention. The fifth terminal device, as shown in FIG.
, Modulator 12, demodulator 13, TDMA-TDD synchronization control circuit 14, RAM 23, ROM 24, EE
PROM 25, power supply 26, protocol control circuit 27
, Antenna 28, CPU 60, and destination storage means 4
1 and a newly provided changeover switch 10.

The changeover switch 10 switches the mode of the wireless terminal 6 between the learning mode and the operation mode, and sets in the CPU 60 which mode the wireless terminal 6 is in. The RAM 23 is a nonvolatile RAM that retains its contents even when the power is turned off, and stores one or more zone numbers.

As shown in FIG. 9, the CPU 60 monitors the terminal's transition to the zone, and performs a specific process when the wireless terminal 6 has shifted to the zone. FIG.
It is a flowchart figure showing operation | movement of 0.

Specifically, the CPU 60 constantly monitors whether or not the wireless terminal 6 has shifted from one zone to another (70).
1) If the wireless terminal 6 does not shift the zone (N
If it is O), do nothing and return to step 701. Further, in the process 701, if the zone has been shifted (in the case of YES), the CPU 60 refers to the changeover switch 10 to determine whether or not the learning mode is set (702). Is the learning mode (Y
In the case of ES, the RAM 23 is checked to see whether the number of the new zone (zone after migration) has already been stored, and if it has not been stored, the current zone number is stored. Do nothing (7
05). Then, the process returns to the process 701.

Then, in the process 702, if the changeover switch 10 is in the operation mode (if NO), the CPU 60 checks whether or not the zone after the shift should execute the position notifying means (703). This operation is already the same as that described in the process 602, and thus the description thereof is omitted.

If it is determined in step 703 that the zone after the shift should execute the position notifying means (YES), the position notifying means is executed (704), and the process returns to step 701. If it is determined in step 703 that the post-shift zone should not execute the position notifying unit (NO), the process returns to step 701 without doing anything.

The radio unit 11, modulator 12, demodulator 13, TDMA-TDD synchronization control circuit 14, ROM
24, EEPROM 25, power supply 26, protocol control circuit 27, antenna 28, destination storage means 41
Is the same as that shown in FIG. 2, and the description thereof will be omitted.

Next, the operation of the fifth terminal device will be described by taking the case where the changeover switch 10 is in the learning mode as an example. When the wireless terminal 6 shifts the zone, the CPU determines whether or not the zone number after the shift is stored in the RAM 23.
If the data is retrieved and stored by 60, the zone number after the transfer is stored in the RAM 23. If the zone number has already been stored, the zone number stored in the RAM 23 does not change.

Next, the operation of the fifth apparatus will be described by taking the case where the changeover switch 10 is in the operation mode as an example. When the wireless terminal 6 shifts the zone, the zone number stored in the RAM 23 and the zone number after the shift are stored in the CPU.
60 are compared one by one. Here, if there is no match, that is, when the wireless terminal 6 is located outside the zone acquired in the learning mode, the position notifying unit is executed and stored in the destination storage unit 41 in advance. The selected selective call receiver 9 is notified of the position information (zone number) of the wireless terminal 6.

According to the wireless terminal system according to the fifth embodiment, when the wireless terminal 6 shifts the zone, the zone after the shift is recorded in the RAM 23 in the learning mode, and is recorded in the operation mode. When the vehicle is out of the zone, the location notifying means is executed, and the location information of the wireless terminal 6 is notified to the selective call receiver 9 stored in the destination storage means 41 in advance. You do n’t need to set,
In addition, the searcher possessing the selective call receiver 9 automatically and accurately grasps that the carrier of the wireless terminal 6 has moved to a specific area where the user does not normally travel, even in an undefined place such as when going out. There is an effect that can be.

In particular, when the above-mentioned wireless terminal 6 is carried by a wandering elderly person or a toddler, only when the wandering elderly person or a toddler moves to a dangerous area other than a safe area where the wandering elderly person normally travels, the searcher is automatically located. Since the notification is made, there is no need to constantly monitor the behavior of the wandering elderly or infant, and this has the effect of reducing the burden on the searcher.

As described above, in each embodiment of the present invention, the PHS system in Japan has been described. However, a similar low-power microcell wireless telephone system in which the maximum value of the transmission power of the wireless terminal is 1 W or less, for example, , European DE
CT, DCS1800 / 1900, CT-2 in the UK, WACS in the United States, etc.
The location can be easily managed and tracked using the wireless terminal of the present invention.

[0083]

According to the first aspect of the present invention, the control station that manages the location information of the terminal device outputs the location information of the target terminal device in response to the inquiry, and simultaneously transmits the location information of the target terminal device to the transmission side of the selective call receiver. Since it is a wireless terminal system that notifies the selective call receiver of the position information of the terminal device through the system, the searcher possessing the selective call receiver,
When the search cooperator makes an inquiry to the control station, there is an effect that the position of the person carrying the terminal device can be accurately grasped even in an undetermined place such as when going out.

According to the second aspect of the present invention, there is provided a terminal device used in a wireless terminal system, which receives a specific message via a base station and notifies a position when the message matches a message stored in an internal storage. Since the terminal device executes the means and notifies the location information of the terminal device to the selective call receiver specified in advance, the searcher possessing the selective call receiver transmits the specific message to the search cooperator. By transmitting the information to the terminal device via the base station, there is an effect that the position of the person carrying the terminal device can be accurately grasped even in an unfixed place such as a place to go.

According to the third aspect of the present invention, there is provided a terminal device used in a wireless terminal system, wherein the position notification means is executed at predetermined time intervals using a timer, and a selective call receiver specified in advance is provided. Terminal device that notifies the location information of the terminal device to the user, the searcher possessing the selective call receiver can periodically and accurately determine the position of the person carrying the terminal device even in an undetermined place such as when going out. There is an effect that can be grasped.

According to the fourth aspect of the present invention, there is provided a terminal device used in a wireless terminal system, wherein a specific zone is stored in advance, and a position notification is made when the mobile station is out of the specific zone during zone transfer. Since the terminal device notifies the location information of the terminal device to the selective call receiver specified in advance by executing the means, the searcher possessing the selective call receiver can be used even in an undetermined place such as when going out. In addition, it is possible to automatically and accurately grasp that the person carrying the terminal device has moved to a specific area.

According to the fifth aspect of the present invention, there is provided a terminal device used in a wireless terminal system, wherein a specific zone is stored in advance, and a position notification is made when a specific zone is entered during zone transfer. Since the terminal device notifies the location information of the terminal device to the selective call receiver specified in advance by executing the means, the searcher possessing the selective call receiver can be used even in an undetermined place such as when going out. In addition, it is possible to automatically and accurately grasp that the person carrying the terminal device has moved to a specific area.

According to the sixth aspect of the present invention, there is provided a terminal device used in a wireless terminal system, comprising a mode changeover switch between a learning mode and an operation mode, and storing a zone to which the terminal device has shifted during the learning mode. Means, and when the operation mode is outside the zone stored in the zone storage means, executes the position notifying means to notify the selective call receiver specified in advance of the terminal information of the terminal device as a terminal device. Therefore, it is not necessary to set a zone in which the position notifying means is to be executed in advance, so that the convenience can be improved. In the place of
This has the effect that it is possible to automatically and accurately grasp that the person carrying the terminal device has moved to a specific area that does not normally travel.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a wireless terminal system according to a first embodiment.

FIG. 2 is a configuration block diagram of a wireless terminal (second terminal device) according to a second embodiment.

FIG. 3 is a state transition diagram showing an operation state of a second terminal device.

FIG. 4 is a flowchart illustrating a flow of a process in a standby state of a CPU of a second terminal device.

FIG. 5 is a configuration block diagram of a wireless terminal (third terminal device) according to a third embodiment.

FIG. 6 is a flowchart illustrating a flow of a process in a standby state of a CPU of a third terminal device.

FIG. 7 is a flowchart illustrating the operation of the CPU 40.

FIG. 8 is a configuration block diagram of a wireless terminal (fifth terminal device) according to a fifth embodiment.

FIG. 9 is a flowchart illustrating the operation of the CPU 60.

FIG. 10 is a system schematic configuration diagram of a PHS system.

FIG. 11 is a configuration block diagram showing a configuration of a conventional wireless terminal 6;

FIG. 12 is a state transition diagram showing an operation state in a conventional wireless terminal 6.

FIG. 13 is a configuration block diagram showing a configuration of a conventional wireless terminal 6.

FIG. 14 is a state transition diagram showing an operation state in a conventional wireless terminal 6.

[Explanation of symbols]

1 ... database 2 ... exchanger 3 ... base station 4
... Digital network, 5 ... Subscribed telephone / public telephone, 6 ... Wireless terminal, 7 ... Cell, 8 ... Transmission system of selective call receiver, 9 ... Selective call receiver, 10 ... Switch, 11 ... Wireless unit, 12 ... Modulator, 13 ... Demodulator, 14 ... TDMA-TDD synchronization control circuit, 15 ...
ADPCM voice codec, 16: microphone amplifier,
17: microphone, 18: speaker amplifier, 19: speaker, 20, 30, 40, 50, 60 ... CPU,
21: keyboard, 22: display device, 23: RA
M, 24 ROM, 25 EEPROM, 26 power supply, 27 protocol control circuit, 28 antenna,
29: timer, 41: destination storage means, 81:
Switch, 82 ... Base station

Claims (6)

[Claims] 1. A wireless terminal system comprising: a mobile terminal device; a base station for transmitting and receiving to and from the terminal device in a zone; and a control station for managing information obtained from the base station. The device is a terminal device that notifies a base station that it is in a zone that has been shifted in the case of a zone shift, and the base station transmits position information to the control station in response to a notification from the terminal device. The control station is a control station that outputs position information of a terminal device managed in response to an inquiry, and the control station includes a transmission of a selective call receiver that transmits to a mobile selective call receiver. Wireless communication system, wherein the location information of the terminal device from the control station is notified to the selective call receiver via the transmitting system of the selective call receiver. Tem. 2. A wireless terminal system having a mobile terminal device, a base station for transmitting and receiving to and from the terminal device in a zone, and a control station for managing information obtained from the base station. A terminal device, wherein the terminal device stores, in advance, a call destination storage means for storing a call number of a specific selective call receiver, and a call number of the selective call receiver, which is stored in the call destination storage means, to the control station. Originating a call via the transmitting side system of the selective call receiver connected to the mobile station, and having position notifying means for notifying the position information, and receiving a specific message transmitted through the base station. A terminal device that executes the position notification means when the message matches a message stored in the internal storage. 3. A wireless terminal system having a mobile terminal device, a base station for transmitting and receiving to and from the terminal device in a zone, and a control station for managing information obtained from the base station. A terminal device, wherein the terminal device stores, in advance, a call destination storage means for storing a call number of a specific selective call receiver, and a call number of the selective call receiver, which is stored in the call destination storage means, to the control station. Originating a call via the transmitting side system of the selective call receiver connected to the location notification means for notifying location information,
A terminal device, comprising: a timer, wherein the position notification unit is executed at regular time intervals using the timer. 4. A wireless terminal system having a mobile terminal device, a base station for transmitting and receiving to and from the terminal device in a zone, and a control station for managing information obtained from the base station. A terminal device, wherein the terminal device stores, in advance, a call destination storage means for storing a call number of a specific selective call receiver, and a call number of the selective call receiver, which is stored in the call destination storage means, to the control station. Originating a call via the transmitting side system of the selective call receiver connected to the location notification means for notifying location information,
A zone storage unit that stores a specific zone in advance, and executes the position notifying unit when a zone is outside the specific zone stored in the zone storage unit in the case of zone shift. Terminal device. 5. A wireless terminal system comprising a mobile terminal device, a base station for transmitting and receiving to and from the terminal device in a zone, and a control station for managing information obtained from the base station. A terminal device, wherein the terminal device stores, in advance, a call destination storage means for storing a call number of a specific selective call receiver, and a call number of the selective call receiver, which is stored in the call destination storage means, to the control station. Originating a call via the transmitting side system of the selective call receiver connected to the location notification means for notifying location information,
A zone storage unit that stores a specific zone in advance, and executes the position notifying unit when a zone shifts to a specific zone stored in the zone storage unit. Terminal device. 6. A wireless terminal system having a mobile terminal device, a base station for transmitting and receiving to and from the terminal device in a zone, and a control station for managing information obtained from the base station. A terminal device, wherein the terminal device stores, in advance, a call destination storage means for storing a call number of a specific selective call receiver, and a call number of the selective call receiver, which is stored in the call destination storage means, to the control station. Originating a call via the transmitting side system of the selective call receiver connected to the location notification means for notifying location information,
A mode changeover switch for performing mode switching between a learning mode and an operation mode, and a zone storage unit for storing a zone to which the terminal device has shifted in the learning mode; A terminal device that executes the position notifying means when the position is out of the zone stored in the zone storing means.