JPH09307949A - Pinpointing system for personal position - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the personal position pinpointing system in which a person carries a light weight portable terminal and the personal position is quickly retrieved externally for the purpose of countermeasure of wandering about of a senile dementia and relief of an old person living alone and unhealthy. SOLUTION: The position pinpointing system has a movable terminal 5 having a transmitter and a receiver and sending a specific identification signal and a plurality of radio connection devices (relay stations) 141 located distributingly making radio connection to a mobile terminal within a prescribed communication range, stores zone position information of a mobile terminal when the mobile terminal enters a communication range of a radio connection device so as to roughly make positioning of the mobile terminal based on the information. Then a reception wave fine positioning measurement means 9 is applied only to a zone selected based on the rough position measurement to apply fine-positioning measurement to a position of a movable terminal by using time series information of a zone position and information such as a channel and time slot used by the terminal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for locating an individual position and a method for locating an individual using the system, and particularly as a wandering countermeasure for a demented elderly person and a rescue system for an elderly person living alone who has physical anxiety. Involved in a personal location system that promptly searches the location of an individual from the outside.

[0002]

2. Description of the Related Art As a method for searching for a lost child (hereinafter referred to as a target person) such as a demented elderly person, the target person is carried with a device capable of transmitting a radio wave signal, and the position of the radio wave signal emitted by the target person is detected by a direction finding technique. There is a way to identify. In particular,
When necessary, a radio signal is transmitted from a device held by the subject by some method, and the radio signal is received by a plurality of base stations. Based on this received signal, the transmission point of the radio wave signal is specified using the direction finding technique.

On the other hand, a mobile communication system, such as a mobile phone typified by PHS, has become widespread in which a plurality of base stations are provided to communicate with a mobile phone moving to the nearest base station. An example of obtaining the destination information using this method is disclosed in Japanese Patent Laid-Open No. 5-292563. FIG. 15 shows a block diagram of the system shown in this publication. The user office 1150 is connected to a wireless switching center 1110 via a general public line network, and this wireless switching center has a plurality of base stations 1131, 1132, and 11.
33 and 1134 are connected. Each of the base stations 1131, 1132, 1133, 1134 is a service area 112 which is a hexagonal zone where radio waves can reach from the own station.
In charge of 1, 1122, 1123, and 1124, respectively. When the mobile terminal 1140 moves from the service area 1121 to the service area 1122, the mobile terminal 1
In accordance with the position registration signal transmitted from 140, the movement information is converted into a message and sent to the user office 1150. User office 11 that received this message
Every time the mobile terminal 1140 moves between areas, 50 can know the destination information.

As described above, according to this method, when the mobile terminal (mobile phone) enters the communication range of a certain base station, the location information of this mobile phone is stored, and the location information is changed every time the base station to communicate with is changed. Since the system for updating the registration is adopted, the position of the mobile terminal can be roughly determined by downloading the position information in units of the communication range of the base station.

[0005]

However, in the conventional system as described above, when considering a general case where the target person is not known where in a very wide area, a relatively small number of receiving stations will try to cope. However, there is a problem in that even a radio wave emitted from a target person far from the receiving station must reach the receiving station, and as a result, the electric power of the radio wave emitted by the target person must be increased. On the other hand, in order to reduce the electric power of the radio wave emitted by the target person, it is necessary to arrange a large number of receiving stations at narrow intervals, which causes a problem of increasing the scale of equipment.

[0006] When using the existing equipment, there is no choice as described above. Taking PHS as an example, the communication range of a certain base station is several hundred meters in diameter, and the position identification in units of the communication range is performed. However, since the accuracy of position identification is poor, it is difficult to put this into practice for this purpose.

Further, in order to use the method of measuring the angle of only a specific portable transmitter, a means for distinguishing a plurality of portable transmitters is required. For example, when distinguishing by frequency, it is necessary to prepare frequency bands for the number of mobile transmitters, which is difficult to realize from the viewpoint of effective use of limited frequency resources.

The present invention has been made in view of such circumstances, and is located somewhere in a large area without preparing large-scale equipment and using a very small device carried by the subject. (EN) An individual position specifying system capable of specifying an individual position with high accuracy and an individual position specifying method using the same.

[0009]

An individual position specifying system according to claim 1 of the present invention is provided with a service area composed of a set of a plurality of cells, each of the cells, and an individual position of each cell. Transmitting a first identification signal, and a relay station that performs communication by a first wireless communication system using the first identification signal between the mobile terminal located in each cell,
If the first identification signal is received and stored in the cell, the newly received first identification signal is compared with the one received and stored last time, and if the two are different, the newly received first identification signal is received. A mobile terminal that sends a signal to the relay station that has issued the identification signal of, and a control station that receives a signal from the mobile terminal that has been sent through the relay station and identifies the cell in which the mobile terminal is located, and the control station Based on the obtained information of the cell in which the mobile terminal is located, a precise measuring device for searching for a radio wave signal emitted by the mobile terminal in the cell and grasping its position is provided.

The personal position identifying system according to claim 2 of the present invention comprises a service area composed of a set of a plurality of cells and a first identification signal provided for each cell and for each cell. A relay station that originates and communicates with a mobile terminal located in each cell by the first wireless communication method using the first identification signal, and is located in the service area, and has a second A selective calling device that calls a specific mobile terminal by a communication method, and a mobile terminal that sends a signal to a relay station of a cell in which it is located by a first wireless communication method when receiving a call signal from the selective calling device, and the relay. Based on the information of the cell in which the mobile terminal is located, which receives the signal from the mobile terminal sent through the station and identifies the cell in which the mobile terminal is located, in the cell concerned Moving end Search radio wave signals emitted from to those with a Seihaka device to grasp its location.

In the personal position identifying system according to claim 3 of the present invention, in claim 1 or 2, the radio signal transmitted by the mobile terminal at the time of search is a radio signal different from the first communication method. It is a thing.

[0012] According to a fourth aspect of the present invention, in the personal position specifying system according to the first or second aspect, it is defined that the precise measuring device is controlled based on the transmission information of the mobile terminal.

According to a fifth aspect of the present invention, in the personal position specifying system according to the fourth aspect, the transmission time of the mobile terminal is controlled by a signal from the precise measuring device.

According to a sixth aspect of the present invention, there is provided a personal position specifying system according to the first or second aspect, which is provided with a transducer which emits an acoustic or optical signal to a mobile terminal, and which is controlled acoustically by another control signal, or It specifies that an optically recognizable signal is emitted.

According to a seventh aspect of the present invention, in the personal position specifying system according to the first or second aspect, the mobile terminal is provided with a video image capturing device, and a video image of the periphery of the mobile terminal is captured by a control signal from another. However, it is defined that the video information is transmitted by the data transmission function provided in the mobile terminal.

The personal position identifying system according to claim 8 of the present invention is the personal position specifying system according to claim 1 or 2, wherein the cell group has a relay station for communicating with the mobile terminal using the second identification signal in the service area. It is provided that the following specific zones are provided.

The personal position identifying system according to claim 9 of the present invention is the personal position identifying system according to claim 1 or 2, wherein the control station is provided with a database, and the mobile terminal conforms to a preset pattern to specify a specific area of the service area. When the mobile terminal is moved, it stores the position movement information of the cell of this mobile terminal, roughly locates the location range of the mobile terminal based on the time-series information of the position of the mobile terminal and the moving speed, and emits the mobile terminal within the range. It defines that the device is provided with a precise measuring device that searches for a radio signal and obtains its position.

According to a tenth aspect of the present invention, there is provided the personal position specifying system according to the first or second aspect, in which the transmitter of the precise measuring device transmits a radio wave having directivity and variable output according to the precise measuring situation. The provision of means is provided.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1. An embodiment of the present invention will be described below with reference to the drawings. In the present embodiment, the case where the PHS system is used to implement the present invention will be described, but the present invention is not limited to the PHS system.
The same applies to a system in which the service area is composed of multiple cells. FIG. 1 shows an overall configuration diagram of the personal position specifying system of the present invention, and FIG. 2 is a flow chart showing the operation of this system. In the figure, the service area of the control station 1 is composed of a plurality of smaller sub-service areas 21, 22 ... (Omitted in the following), and each sub-service area is a plurality of smaller areas. (Cell) 1
, 132, ..., 231 ,.
The cell size is typically several hundred meters in diameter. For each cell, the relay station 1 that communicates with the mobile terminal 5 located in each cell by the PHS wireless communication system.
, 241 are provided, and each relay station has a function of transmitting an identification number in units of cells. The mobile terminal 5 has a function of receiving and storing this identification signal.

Next, the entire operation of FIG. 1 will be described with reference to the flowchart of FIG. 2, particularly in the service area 21. It is assumed that the mobile terminal 5 moves into the service area 21 from another service area and stays in the cell 131. When the mobile terminal 5 receives the first identification signal transmitted from the broadcast channel of the new nearest relay station 141 (step 101; hereinafter ST101), the identification number of the relay station already stored and the newly closest relay station 1
The identification signal from 41 is compared (ST102), and if different, the communication phase is entered, and to that effect the nearest relay station 1
41 by the PHS wireless communication system (ST10
3).

The notification of the position update from the mobile terminal 5 is transmitted from the relay station 141 to the control station 1 through the contact signal line 161 for each relay station and the exchange station 17. With this information, it is possible to grasp and identify in which relay station area the mobile terminal is located in the service area (ST
104). This is so-called mobile terminal location registration. This position information is sequentially updated in the storage means 8, but is accumulated as needed and used as time series information.

Next, if there is a request from the outside (ST10
5) Based on the information of the location area (cell) of the mobile terminal 5 obtained by the control station 1, the location of the mobile terminal is determined by using the precise measuring device 9 that searches for a weak radio wave emitted by the mobile terminal in the cell. Precisely measure (ST106). During the precise measurement, the control station 1 continues to monitor the cell in which the mobile terminal exists, and when there is a change in the cell in which the mobile terminal 5 is located, the control station 1 contacts the precise measurement device 9 one by one. If the position of the mobile terminal 5 can be confirmed, the precise measurement is completed (ST107), but the cell present at any time due to the movement of the mobile terminal 5 is specified using the identification signal.

Next, a method of precise measurement by the precise measuring device 9 will be described. 3 and 4 are views showing a measuring method by the precise measuring device 9. In the figure, 10 is a precision measuring device 9.
This is a directional antenna prepared for. The precise measuring device 9 moves to the location area (cell) 131 of the mobile terminal 5 in response to a request (ST105) from outside (indicated by a dotted line in the figure),
A signal from the mobile terminal 5 is searched using a directional antenna 10, as shown in FIG. 3, for example. Specifically, within the reception area 91 of the directional antenna 10, the direction of maximum reception sensitivity is measured, and the precise measurement device 9 moves in this direction to continue the measurement, whereby the position of the mobile terminal 5 is reached. To reach.

Alternatively, as shown in FIG. 4, the maximum sensitivity direction is measured at two locations, and the position of the mobile terminal 5 is calculated from the intersections by triangulation. However, since radio waves are reflected when there is a building or the like, accurate location determination is difficult only by triangulation in urban areas and the like, and the mobile terminal 5 is reached while repeating this measurement. If the size of the service area is relatively small, even if the position of the mobile terminal cannot be completely measured, it is often practically sufficient if it is located on the azimuth line starting from the precise measuring device that can measure the angle. Absent. Especially,
The location of the mobile terminal can be easily specified by combining the map information and the location history of the terminal carrier.

In the above embodiment, the control station 1 is provided by linking with the exchange station 17. However, if necessary, its function is installed in a nursing home or the like that protects the carrier of the mobile terminal. It can also be used for grasping the status of the mobile terminal.

As described above, by using the cell system such as the current PHS system, first, the cell in which the mobile terminal is located is captured, and the precise measurement is performed in the cell.
Minimal additional equipment without changing existing equipment,
The precise measurement area can be narrowed. Further, there is no need to change or add new functions to the mobile terminal, power consumption can be reduced, a precise measuring device can be simplified, and a precise measuring time can be shortened. In this case, the person who holds the mobile terminal automatically causes the nearest relay station to issue a location registration request by the PHS communication signal, whereby the target person who carries out the location registration of the mobile terminal in the PHS system and holds the mobile terminal is The location can be grasped by the roughness of the cell unit (a few hundred meters in diameter), and the location of the mobile terminal holder is precisely measured and specified in this narrow area. Further, as the precise measuring device, a receiver having directivity is used, and a method of searching while moving assuming that the mobile terminal is located on the maximum sensitivity line, measuring the maximum sensitivity direction from at least two points, A method of searching for a mobile terminal at the intersection and the like can be used.
Furthermore, since the location of the mobile terminal is narrowed down to one designated cell, by performing precise measurement of a very short distance,
The position of the mobile terminal can be specified. Further, since the mobile terminal may have a narrow range of radio waves, the mobile terminal can be configured with an extremely light weight and low power consumption.

Here, a radio wave signal related to the PHS communication system issued by the mobile terminal is used as a search signal. As a result, the PHS call signal can be used in this embodiment for searching, and there is an effect that it is not necessary to mount special equipment on the mobile terminal side.

Embodiment 2 In the above-described first embodiment, the radio signal emitted by the mobile terminal at the time of the search is the PHS communication system, but it may be a radio signal different from the PHS signal. In this case, since the PHS system can emit a radio signal independent of the PHS function called the transceiver mode, this is used as a search signal. This has the effect of avoiding long-term occupation of the PHS line, which is a public line, that may occur during a search. Especially
In the transceiver mode, after the precision measuring device moves to the cell where the mobile terminal exists, it is confirmed that wireless connection with the mobile terminal is possible, and the transmission and reception channels are set between the mobile terminal and the precise positioning measurement means. Switch to a channel with a transceiver mode signal, which allows you to talk only on. From this point onward, since the public line is not used for communication, the use of the public line is not required.

Embodiment 3 An embodiment of the present invention will be described below with reference to the drawings. FIG. 5 is an overall configuration diagram of the personal position identifying system of the present embodiment, and FIG. 6 is a flowchart showing the operation of this system. In the figure, the service area of the control station 1 is composed of a plurality of smaller sub service areas 21, 22 ..., Each sub service area is further smaller than a plurality of regions (cells) 131, 132 ,. ... 2
, 232, ... For each cell, between the mobile terminals 5 located in each cell,
Relay stations 141 and 14 that perform communication by the PHS communication method
, ..., 241, 242, ... are provided, and each relay station has a function of transmitting an identification number in units of sub service areas. The mobile terminal 5 has a function of receiving and storing this identification signal. In addition, selective calling devices 115 and 215 capable of calling the mobile terminal 5 are installed in the sub service area.

In the mobile terminal 5 according to the present embodiment, instead of the identification signal shown in the first embodiment, a selective calling device 215 separately provided when an external request is made.
From (corresponding to FIG. 5), an individual selection signal is transmitted to the mobile terminal 5 whose specific position is desired to be confirmed (ST201).
The mobile terminal 5 called by the individual identification signal informs the nearest relay station 242 that the individual selection signal is received by the normal PHS communication method (ST202). The communication from the mobile terminal 5 is transmitted to the control station 1 via the communication signal line 261 for the relay station 242 and the exchange 27 (ST20).
3). With this information, it is possible to grasp and identify in which relay station area the mobile terminal is located in the service area. This is so-called mobile terminal location registration. This position information is sequentially updated in the storage means 8, but is accumulated as needed and used as time series information.

Next, if there is a request from the outside (ST20
4) Based on the information of the location area (cell) of the mobile terminal 5 obtained by the control station 1, the location of the mobile terminal is determined using the precise measuring device 9 that searches for a weak radio wave emitted by the mobile terminal in the cell. Perform precise measurement (ST205). The precise measuring method is the same as in the first embodiment.

As described above, the cell system in which the current PHS system is used and the cell in which the mobile terminal is located is captured only when the selective call is received, and the precise measurement is performed therein. Therefore, since the precise measurement area can be narrowed without constructing special equipment, the power consumption of the mobile terminal can be reduced, the traffic due to the location registration is not increased, and the precise measurement apparatus can be simplified. It is possible to construct a position specifying system that can reduce the time required for precise measurement.

Embodiment 4 FIG. An embodiment of the present invention will be described below with reference to the drawings. The present embodiment shows a concrete method in the case where the operation of the precision measuring device in the above-mentioned embodiment is controlled based on the transmission information from the mobile terminal. Alternatively, it is similar to FIG. FIG. 7 is a diagram showing a configuration relating to transmission / reception of a mobile terminal. In the figure, a mobile terminal 5 transmits and receives radio waves to and from a relay station via an antenna 12 and a filter 13, and a transmission unit 51 and a reception unit 52, and transmission and reception of these transmission units and reception units 51 and 52. It is composed of a synthesizer section 53 for designating a channel and a control section 54. Of these, the control unit 54 has, for example, a microcomputer as a main control circuit, and the connection control unit 5
In addition to 4a, position detection means 54b and position registration means 54c
And

Next, the operation will be described. Connection control means 54
a is the transmission of radio waves between the relay station at the time of incoming and outgoing calls,
Perform reception. The position detection means 54b receives the position detection signal and the connection control signal transmitted from the relay station,
I specific to the source relay station inserted in these signals
The cell in which the own device exists is detected from the D code (CS-ID). Further, the position registration means 54c, when the cell detected by the position detection means 54b is different from the currently registered cell, transmits a position registration signal to the relay station, and via the communication line and the switching center 17, The position information recorded in the storage means 8 linked to the control station 1 is updated. In addition to this position information, the ID code (PS-ID) of the mobile terminal 5 and the information on the operation of the mobile terminal, for example, the channel used, the time slot, and the transmission time (timing) are transmitted. .

As described in the first embodiment, the precise measuring device 9 measures the maximum sensitivity direction of the signal from the mobile terminal 5 by using, for example, the directional antenna 10. At that time, by measuring in accordance with the channel frequency used by the mobile terminal 5 and the time slot, it is possible to distinguish from other radio waves and perform quick measurement. Further, if the timing signal is available, the reception gate can be measured in accordance with the timing signal, and the discrimination from other radio waves becomes easier. FIG. 8 is a diagram showing the timing of the PS-ID signal emitted from the mobile terminal and the signal emitted from the precision measuring device. As shown in this figure, first, the I
Issuing a unique word signal in a wide time range that covers the time slot of the D code (PS-ID), and after synchronizing once, keep the state and continue receiving with the minimum necessary reception timing gate. , The position of the mobile terminal 5 can be easily specified by tracing in the direction of the maximum reception sensitivity.

By controlling the timing required for precise measurement by using the transmission information of the mobile terminal, it is possible to avoid mixing other signals with the signal from the mobile terminal. That is,
Transmitted from the relay station by obtaining the timing signal and controlling the reception gate of the precision measuring device in addition to the area (cell) information and the information such as the channel and time slot used by the mobile terminal. Since only signals from the terminals can be received excluding unrelated signals, the accuracy of position measurement can be improved. Furthermore, there is an effect that battery consumption on the mobile terminal side can be reduced and unnecessary radio wave transmission time can be shortened.

Embodiment 5 Furthermore, the above-mentioned fourth embodiment
In the above, the transmission time (timing) of the mobile terminal 5 may be controlled by a signal from the outside, and this control may be performed by a signal from the precise measuring device. For example, in the fourth embodiment, the timing of the precision measuring device is controlled from the transmission information of the mobile terminal, but this may be fed back to the mobile terminal side to control the transmission time of the mobile terminal.
In this way, if the transmission time of the mobile terminal can be controlled from the precise measuring device side, the transmission time can be minimized for precise measurement. That is, normal PHS
The system sends a signal every 5 ms, but when trying to identify the location of an individual, it is not necessary to update location information at this frequency. Therefore, by avoiding the transmission of unnecessary radio waves, it is possible to reduce the consumption of the battery of the mobile terminal and to prevent the emission of unnecessary radio waves.

Embodiment 6 FIG. Another embodiment of the present invention will be described with reference to the drawings. FIG. 9 is a diagram showing a configuration relating to transmission / reception of a mobile terminal. In the configuration of FIG. 7, transducers 55 and 56 that emit acoustic or optical signals are provided,
It shows that it is controlled by a control signal from the other so as to emit a signal which can be recognized acoustically or optically. This allows the members of the search team who are approaching the mobile terminal carrier to know who the target mobile terminal carrier is, and also the people around the mobile terminal carrier. In addition, it is possible to send a signal that understands these things and cooperate with them to speed up the search work.

By sending a control signal to the mobile terminal side when the search team is very close to the mobile terminal,
The mobile terminal side can promptly search for the mobile terminal carrier by issuing a special acoustic signal or by issuing a special optical signal at night. Further, even if it is difficult to specify the position only by the precise measuring device, it is possible to search without knowing the face or the like of the mobile terminal carrier by searching with acoustic or optical signals as clues, In addition, the search activities can be speeded up by the cooperation of surrounding third parties. Since it can be generated as close as possible to the mobile terminal carrier and at a minimum timing as necessary, it is possible to operate in consideration of privacy issues, reduction of battery consumption, and avoiding annoyance to people around. it can.

Embodiment 7 Another embodiment of the present invention will be described with reference to the drawings. FIG. 10 is a diagram showing a configuration relating to transmission / reception of the mobile terminal. In the configuration of FIG.
7, it is shown that a peripheral image is photographed by a control signal from others and the image information can be transmitted by using the data transmission function provided in the mobile terminal. As a result, at the request of the outside, the surroundings of the mobile terminal carrier are photographed, converted into a digital signal by the image processing device 58, and the data is transmitted to the control station using the data transmission means 54d of the mobile terminal. It can be transmitted and the search activity can be speeded up.

Embodiment 8 FIG. An embodiment of the present invention will be described with reference to the drawings. FIG. 11 is a diagram showing the overall configuration of the personal position identifying system according to the present embodiment. As shown in FIG. 11, in addition to the first embodiment, the following elements are provided. The specific relay station, a second identification signal different from the first identification signal for the cell covered by the own station,
A function of transmitting together with the first identification signal is provided, and the cell of this relay station is set in an area where the specific warning zone 19 should be set.
Deploy. In the figure, cells 131 and 1 are set in the guard zone 19.
In this example, 33 and 134 are arranged. The warning zone 19 is an area preset by the control station, and is set in, for example, a dangerous area, an inaccessible area, or a peripheral portion under the control of the control station. Further, the mobile terminal has a function of detecting the second identification signal, and when receiving the second identification signal, the mobile terminal can make a position registration request to the relay station.

Next, the operation will be described. Usually, the operation is the same as that of the first embodiment. Mobile terminal is in alert zone 1
When entering 9, the mobile terminal 5 receives the second identification signal from the relay station in the guard zone, and the location registration request is made to the relay station. This information is transmitted to the control station, and the control station recognizes that the mobile terminal has entered the warning zone. Note that, here, the first identification signal is designed to function for location registration with respect to the PHS mobile terminal intended for normal calls, so that normal calls can be made by setting the zone for the alert zone. It does not substantially affect the operation of the system for the purpose. As a result, when a specific mobile terminal enters a preset warning zone, it can be automatically detected without affecting many other normal operating mobile terminals.

As described in the fourth embodiment, the mobile terminal 5 includes the transmitting unit 51 and the receiving unit 52, and the synthesizer unit 53 and the control unit 54 for designating the transmitting and receiving channels of the transmitting unit and the receiving units 51, 52. Composed. The personal position specifying system inputs a preset program into the storage means 8 linked to the control station 1.
The control station 1 follows the preset program
The control signal is transmitted via the communication line, and only the specific relay station accordingly transmits the second identification signal for position confirmation. Mobile terminals intended for wandering elderly people usually do not need to be monitored as long as they are within range. For example, it is sufficient to update the location registration when the mobile terminal approaches the boundary of the operating range of a specific relay station or when it moves beyond the normal operating range. If location registration is repeated in the same manner as a mobile terminal intended for a normal call, traffic will be congested and the call will be interrupted. For this reason,
A system for transmitting a calling signal for position confirmation according to a preset program is very effective.

In the above-described embodiment, if a specific relay station group designated in the security zone is registered in the control station in advance, communication from the relay station as in the first embodiment, for example, can be performed in the security zone. It is possible to determine whether or not you are in. In this case, the second identification signal becomes unnecessary.

Ninth Embodiment An embodiment of the present invention will be described with reference to the drawings. FIG. 12 is a diagram showing the overall configuration of the personal position identifying system according to the present embodiment. In the figure,
The control station 1 receives the information from the exchange station 17 and sends it to the storage means 18a, and a database that stores a database relating to the movement pattern of the mobile terminal based on the information accumulated in the storage means 18. 1b and.
The control station 1 includes a relay station, a communication line, an exchange station 17, and a control station 1.
The information stored in the storage means 8 is obtained via the, and based on the database such as the map information and the behavior pattern of the target person so far, in the cell where the mobile terminal is statistically located, Statistical processing such as narrowing down the existing range is performed, and this is used as a database. By using these databases, the personal position specifying system of the present invention can quickly specify the rough position of the mobile terminal that has moved according to the data, and further follow the information of the registered cell in time series. By doing so, it becomes possible to predict the location of the mobile terminal even when the mobile terminal goes out of the PHS service area while predicting the movement of the mobile terminal.

Embodiment 10 FIG. An embodiment of the present invention will be described with reference to the drawings. FIG. 13 is a diagram showing a measuring method by a precise measuring device constituting the individual position specifying system, and FIG.
FIG. 3 is a configuration diagram of the precision measuring device 9. In the figure, the precision measuring device 9
Includes a high-sensitivity receiving device 41 and a variable intensity radio wave transmitting device 42, and the directional antenna 10 further includes a plurality of directional antennas 10a and 10b. First, the requesting device 3 moves the precision measuring device 9 into the cell 131 in which the mobile terminal 5 is located. At that time, after confirming that the normal operation of the relay station is not disturbed, a plurality of directional antennas 10
(10a, 10b) is rotated or the precision measuring device is moved to emit radio waves in a wide range of directions (in this case, it is convenient to apply the channel frequency used by the mobile terminal in transceiver mode), and the mobile terminal From the response of
The position of the mobile terminal 5 is roughly specified. The reception area of the antenna at this time is about 91a. As shown in FIG. 13, x, y, z and radio waves are searched with a sufficiently large transmitted radio wave intensity that does not interfere with normal operation of the relay station, and y, that is, A
When the response of the mobile terminal at the point is confirmed, the intensity of the transmitted radio wave is reduced by the radio wave transmission device 42 of which the intensity is variable (the antenna reception area is about 91b), and the search is further performed near the point A. , The direction of point B is specified by the response sensitivity from the mobile terminal 5. In this way, the maximum sensitivity direction of the received radio wave is narrowed down from the response of the mobile terminal, and the movement and measurement are repeated. In this method, since the measurement range can be narrowed down in sequence, the position of the mobile terminal (target person) can be specified quickly. Further, since the transmission strength of the radio waves can be sequentially reduced, unnecessary radio wave transmission can be suppressed to the minimum. In addition, the position of the mobile terminal can be specified even outside the service area. Furthermore, in the above embodiment, an example using a plurality of directional antennas is shown,
For example, an omnidirectional antenna may be used as 10a, and a wide range search may be performed using the omnidirectional antenna, and then the directional antenna 10b having a variable direction may be switched to limit the search range.

In each of the above embodiments, the case where the present invention is carried out by utilizing the PHS system has been described, but the present invention is not limited to the PHS system, and the service area is composed of a plurality of cells. The same can be applied to the system described above.

[0048]

As described above, according to the personal location specifying system of claim 1 of the present invention, a service area composed of a set of a plurality of cells and each of the cells is provided, and each of the cells is provided. Transmitting an individual first identification signal, and a relay station that performs communication by the first wireless communication system using the first identification signal between the mobile terminal located in each cell,
If the first identification signal is received and stored in the cell, the newly received first identification signal is compared with the one received and stored last time, and if the two are different, the newly received first identification signal is received. A mobile terminal that sends a signal to the relay station that has issued the identification signal of, and a control station that receives a signal from the mobile terminal that has been sent through the relay station and identifies the cell in which the mobile terminal is located, and the control station Based on the information of the cell where the obtained mobile terminal is located, since it is equipped with a precise measuring device that searches for a radio signal emitted by the mobile terminal in the cell and grasps its position,
The equipment of the existing PHS system can be used, and substantial capital investment is unnecessary. Further, since the precise measurement area can be narrowed, the power consumption of the mobile terminal can be reduced, and the precise measurement device can be simplified and the precise measurement time can be shortened.

According to the personal location specifying system of claim 2 of the present invention, a service area formed of a set of a plurality of cells and a first identification signal provided for each cell and individually for each cell And a relay station that communicates with a mobile terminal located in each cell by the first wireless communication method using the first identification signal, and is located in the service area, A selective calling device for calling a specific mobile terminal in the communication system of, and a mobile terminal that sends a signal to the relay station of the cell in which it is located in the first wireless communication system when receiving a calling signal from the selective calling device, Based on the control station that receives the signal from the mobile terminal sent via the relay station and identifies the cell in which the mobile terminal is located, and the information in the cell in which the mobile terminal is located in the control station, within the cell Move end Since a Seihaka device to grasp the position searched by a radio signal emitted by, the pager functions and hybridization can be applied in a wide range, yet it is possible to reduce the power consumption.

According to the personal position identifying system of claim 3 of the present invention, in claim 1 or 2, since the radio signal transmitted by the mobile terminal at the time of searching is a radio signal different from the first communication system, the transceiver mode is used. If you use the call signal,
There is no additional element to a normal PHS mobile terminal, and in the transceiver mode, there is no effect on the public line at the time of precise measurement.

According to the personal position specifying system of claim 4 of the present invention, in claim 1 or 2, since the precise measuring device is controlled based on the transmission information of the mobile terminal, a large number of PHs are detected.
It becomes easy to extract the signal emitted by the target mobile terminal from the S channel signal, and the simplification of the structure of the precision measuring device and the shortening of the precision measuring time can be achieved.

According to the personal location specifying system of claim 5 of the present invention, in claim 4, the transmission time of the mobile terminal is controlled by a signal from the precise measuring device, so that the mobile terminal is controlled at the timing necessary for the precise measurement. By controlling transmission, it is possible to reduce battery consumption on the mobile terminal side, shorten unnecessary radio wave transmission time, and (in some cases, reduce line usage fee by shortening radio wave transmission time).

According to a sixth aspect of the personal position identifying system of the present invention, in the first or second aspect, the mobile terminal is provided with a transducer which emits an acoustic or optical signal, and an acoustic signal is generated by a control signal from the other. Alternatively, since an optically recognizable signal is emitted, even if it is difficult to identify the position only by precise measurement, it is possible to accelerate the discovery by searching for an acoustic or optical signal as a clue. The search is possible without knowing the face of the mobile terminal carrier. The search activities can be speeded up by the cooperation of surrounding third parties.

According to the personal position specifying system of claim 7 of the present invention, in claim 1 or 2, the mobile terminal is provided with a video image capturing device, and a video image of the periphery of the mobile terminal is generated by a control signal from another. Since the image information is taken and the video information is transmitted by the data transmission function provided in the mobile terminal, the location can be easily specified by using the peripheral video signal.

According to the personal location specifying system of claim 8 of the present invention, in claim 1 or 2, a cell group having a relay station for communicating with the mobile terminal using the second identification signal in the service area. Since it has a specific zone consisting of, when a specific mobile terminal enters the preset warning zone, this does not substantially affect the operation of the system intended for normal calls, It can be detected automatically.

According to the personal position specifying system of claim 9 of the present invention, in claim 1 or 2, the control station is provided with a database, and the mobile terminal matches the preset pattern to identify the service area. When moving in an area, the position movement information of the cell of this mobile terminal is stored, the location range of the mobile terminal is roughly determined based on the time-series information of the position of the mobile terminal and the movement speed, and the location of the mobile terminal Equipped with a precise measuring device that searches the emitted radio signal and finds its position, it follows the position information of the mobile terminal in time series to predict the movement of the mobile terminal in consideration of the moving speed. At the same time, it is possible to track the mobile terminal when it goes out of the operating zone of the wireless connection device.

According to the personal position specifying system of claim 10 of the present invention, in claim 1 or 2, the transmitter of the precision measuring device transmits a radio wave having directivity and variable output according to the precision measuring situation. Since the control means is provided, it can be brought close to the mobile terminal wearer and can be generated at the minimum timing as necessary, so privacy problems, reduction of battery consumption, and nuisance to people around. Operation that considers avoidance is possible.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of an individual position specifying system according to a first embodiment of the present invention.

FIG. 2 is a flowchart showing an operation procedure of the personal position identifying system according to the first embodiment of the present invention.

FIG. 3 is a principle diagram of a measuring method by a precise measuring device constituting the individual position specifying system according to the first embodiment of the present invention.

FIG. 4 is a principle diagram of another measuring method by the precise measuring device that constitutes the individual position identifying system according to the first embodiment of the present invention.

FIG. 5 is an overall configuration diagram of an individual position specifying system according to a third embodiment of the present invention.

FIG. 6 is a flowchart showing an operation procedure of the system according to the third embodiment of the present invention.

FIG. 7 is a diagram showing a configuration relating to transmission / reception of a mobile terminal according to Embodiment 4 of the present invention.

FIG. 8 is a diagram showing timings of signals from a mobile terminal and signals from a precise measuring device according to the fourth embodiment of the present invention.

FIG. 9 is a diagram showing a configuration relating to transmission / reception of a mobile terminal according to a sixth embodiment of the present invention.

FIG. 10 is a diagram showing a configuration relating to transmission / reception of a mobile terminal according to a seventh embodiment of the present invention.

FIG. 11 is an overall configuration diagram of an individual position specifying system according to an eighth embodiment of the present invention.

FIG. 12 is an overall configuration diagram of an individual position specifying system according to a ninth embodiment of the present invention.

FIG. 13 is a diagram for explaining the operation of the precise measuring device according to the tenth embodiment of the present invention.

FIG. 14 is a configuration diagram of a precise measuring device according to a tenth embodiment of the present invention.

FIG. 15 is a block diagram showing a conventional movement position identifying system.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 control station, 5 mobile terminals, 8 storage means, 9 precise measuring devices, 10, 10a, 10b directional antennas, 12 antennas, 13 filters, 16,
26 communication lines of the second communication system, 17 exchanges,
19 warning zone, 21, 22 sub-service area, 27 second communication type exchange, 41 high-sensitivity receiver, 42 variable-intensity radio wave oscillator, 51 receiver, 52 synthesizer, 53 transmitter, 54
Timing adjusting device, 54a Connection control means, 54b
Position detection means, 54c position registration means, 54d data transmission means, 55 optical transducer, 56
Acoustic transducers, 57 video shooting devices, 5
8 image processing devices, 91, 91a, 91b reception / transmission areas 115, 215 of directional antennas relay stations of the second communication system, 131, 132, 133, 231, 232
Cells, 141, 142, 143, 241, 242
Relay station, 161, 162, 163, 261, 262, 2
63 Communication line

Front Page Continuation (72) Inventor Atsushi Okamura 2-3-3 Marunouchi, Chiyoda-ku, Tokyo Sanryo Electric Co., Ltd. (72) Inventor Kazuo Mitsui 2-3-3 Marunouchi, Chiyoda-ku, Tokyo Sanryo Electric Co., Ltd. In the company

Claims (10)

[Claims] 1. A service area composed of a set of a plurality of cells, and a mobile terminal located in each cell, transmitting a first identification signal individually for each cell, and located in each cell. Between the relay station that communicates with the first identification signal using the first wireless communication method, and that the first identification signal is received and stored in the cell, and the newly received first One identification signal is compared with the one that was received and stored last time, and if they are different, a mobile terminal that sends a signal to the relay station that issued the newly received first identification signal, and the one sent via the relay station. Based on the information of the control station that identifies the cell in which the mobile terminal is located and the cell in which the mobile terminal is located, obtained by the control station, the radio wave emitted by the mobile terminal in the cell is received. Precision instrumentation that searches for signals and finds their position An individual position identifying system characterized by comprising: 2. A service area composed of a set of a plurality of cells, and a mobile terminal provided in each cell, transmitting a first identification signal individually for each cell, and located in each cell. And a selective call for calling a specific mobile terminal in the second communication method, which is located in the service area, and a relay station which performs communication using the first identification signal with the first wireless communication method. Device and a mobile terminal that receives a calling signal from the selective calling device, sends a signal to the relay station of the cell in which it is located in the first wireless communication system, and a signal from the mobile terminal sent through the relay station. The control station that identifies the cell in which the mobile terminal is located, and based on the information in the cell in which the mobile terminal is located, obtained by the control station, searches for the radio signal emitted by the mobile terminal in the cell and its position The spirit of grasping A personal position specifying system comprising a measuring device. 3. The personal position identifying system according to claim 1, wherein the radio signal transmitted by the mobile terminal at the time of searching is a radio signal different from the first communication method. 4. The personal position identifying system according to claim 1, wherein the precise measuring device is controlled based on the transmission information of the mobile terminal. 5. The personal position specifying system according to claim 4, wherein the transmission time of the mobile terminal is controlled by a signal from the precision measuring device. 6. The mobile terminal is provided with a transducer that emits an acoustic or optical signal, and a signal that can be recognized acoustically or optically by a control signal from another is emitted. Or the personal position specifying system according to 2. 7. A mobile terminal is provided with a video image capturing device, and a video image of the vicinity of the mobile terminal is captured by a control signal from another, and video information is transmitted by a data transmission function provided in the mobile terminal. The personal position specifying system according to claim 1 or 2. 8. A specific zone comprising a cell group having a relay station which communicates with a mobile terminal using a second identification signal is provided in the service area.
Or the personal position specifying system according to 2. 9. The control station is provided with a database, and when a mobile terminal moves in a specific area of a service area in conformity with a preset pattern, it stores the position movement information of the cell of the mobile terminal and moves the cell. Based on the time-series information of the position of the terminal and the moving speed, roughly locate the range of the mobile terminal, search for the radio signal emitted by the mobile terminal in the range,
The personal position specifying system according to claim 1 or 2, further comprising: a precise measuring device for determining the position. 10. The personal position according to claim 1, wherein the transmitting device of the precise measuring device comprises a control means for transmitting a radio wave having directivity and variable output according to the precise measuring situation. Specific system.