JP2002171553A - Radio terminal retrieval system, radio terminal and radio terminal retrieval method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To build up a casualty searching rescue service system that can cope with a case that a person possessing a radio terminal with an enhanced adoption rate encounters with distress or affair. SOLUTION: This invention provides the system that retrieves a person possessing a radio terminal 11 with a function of automatically registering the presence of its own terminal to a radio base station 13 within a transmission reception enabled range or a position of the radio terminal 11, is provided with a mobile means 12 to which the radio base station 13 is installed, and the system retrieves the person possessing the radio terminal 11 or the position of the radio terminal 11 on the basis of a call telephone number acquired in advance. Through the configuration above, the system can quickly in flux move and place the wireless base station 13 installed on the mobile means 12 in the vicinity of a site such as a disaster site or a kidnapped site and can connect with a general line through the radio base station 13 of the mobile means 12 even at the outside of a fixed station service area so as to inform concerned people about a state of the distress or affair.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless terminal apparatus suitable for use in a distress search and rescue service system capable of coping with a person who has a portable telephone whose penetration rate has increased and is involved in a distress or an incident. The present invention relates to a search system, a wireless terminal device, and a wireless terminal device search method.

More specifically, a wireless base station is set up in a moving means such as a helicopter, and a person who has a wireless terminal device or a position of the wireless terminal device is searched for based on a previously acquired calling telephone number. In addition, it is possible to construct a distress search and rescue service system and the like that can deal with a case where a person having a wireless terminal device whose penetration rate has been increased is involved in a distress or an incident.

[0003]

2. Description of the Related Art In recent years, in the field of information communication, portable telephones and automobile telephones of a code division multiplex system to which spread spectrum communication is applied have been increasingly used. In a telephone set premised on this type of movement, a plurality of frequency bands are allocated to a telecommunications carrier in advance, a plurality of radio base stations are arranged for each frequency band, and a standby channel capable of optimal transmission and reception is selected. Communication through the wireless base station.

[0004] On the other hand, the penetration rate of wireless terminal devices including mobile phones has increased, and mountain climbing has often been carried with mobile phones. Therefore, it is expected that the probability that a victim in a mountainous area has a mobile phone has become considerably high.

FIG. 15 is an image diagram showing a configuration example of a mobile phone service system 1 according to a conventional example. Are provided in the mobile phone service system 1 shown in FIG. 15, and a plurality of mobile phones # 1, # 2,... Are subscribed. .

[0006] Each fixed station 61 has a service area PE1 within a radio wave range, and each fixed station 62 has a service area PE2 within a radio wave range. In these service areas PE1 and PE2, a plurality of mobile phones #
1, # 2, etc. move with the action of the holder and fixed station 6
1 and 62 and so on. These fixed stations 61, 62,... Are further connected to a network 3 including a telecommunications carrier, and the home telephone 2 is also connected to the network 3.

[0007] The mobile phone service system 1 has a function of automatically registering the existence (position) of the mobile phone itself in a wireless base station. In this function, in order to establish communication with the fixed station 61 or the like, the fixed station 61 or the like is activated from the channel having the highest received electric field strength, and after the activation is successful, the fixed station 61 To control the wireless telephone function so as to receive the broadcast information. At this time, if the wireless communication network number based on the broadcast information is the same as the standby channel of the scan destination operator currently scanning, the mobile phone can be on standby (hereinafter also referred to as a perch scan function). .

Accordingly, it is possible to make a call to the home telephone 2 from the service area PE1 or the like within the radio wave reach range, and the mobile phones # 1 and # 1 between the fixed station service areas PE1 and PE2 through the fixed stations 61 and 62. The two can talk.

[0009]

By the way, there is an increasing number of cases in which a mobile phone # 1 of the type applied in the mobile phone service system 1 is carried as if it is a fixed service area in a city area and mountain climbing is carried out. However, in this type of service system 1, even if an attempt is made to make a call from a deep valley or the like, the radio wave is closed to a high mountain and the radio wave does not reach the nearest fixed station 62 in many cases. Therefore, when a person carrying a mobile phone (hereinafter also referred to as a wireless terminal device) is involved in a distress or case, there is a problem that it is difficult to search for the person. By the way, it is possible to temporarily install fixed base stations or use satellite communication technology during the climbing season in places where mountain climbers are likely to go, but this will increase the cost of mobile phones and increase the cost of communication equipment. Absent.

Accordingly, the present invention has been made to solve such a conventional problem, and is a distress search which can cope with a case where a person who has a wireless terminal device, which has become increasingly popular, is involved in a distress or case. It is an object of the present invention to provide a wireless terminal device search system, a wireless terminal device, and a wireless terminal device search method that can construct a rescue service system and the like.

[0011]

An object of the present invention is to search for a person who has a wireless terminal device with a function of automatically registering the presence of the own device in a wireless base station or a position of the wireless terminal device within a transmittable / receivable range. A mobile base station installed in a mobile base station, using a wireless base station installed in the mobile base station, and having a wireless terminal device based on a previously acquired calling telephone number. Alternatively, the problem is solved by a wireless terminal device search system that searches for the position of the wireless terminal device.

According to the wireless terminal device search system of the present invention, the wireless base station installed in the moving means can be moved and arranged in a fluid and rapid manner near the site such as a distress place or abduction place, and can be fixed. Even outside the station service area, it can be connected to a general line through the wireless base station of the mobile means, and can be notified of distress and incident situations. In addition, even if the victim is not in a state where he / she can talk, as long as the wireless terminal device is powered on, the function of automatically registering the presence of the terminal itself with the wireless base station is used, and the wireless means of the mobile means is used. By controlling the antenna directivity of the base station, it is possible to search for the positions of victims and abductees. Therefore, it is possible to construct a distress search and rescue service system using a wireless terminal device whose penetration rate is increasing.

A wireless terminal device according to the present invention is a wireless terminal device having a function of automatically registering its own presence in a wireless base station within a transmittable / receivable range, based on a wireless telephone function and a wireless telephone function. And a distressed rescue mode for transmitting an distress signal.

According to the wireless terminal device of the present invention, when the person carrying the wireless terminal device is distressed or the wireless terminal device is lost, the wireless terminal device is powered on. In such a case, the location of the victim or the like carrying the wireless terminal device can be searched by internally or externally activating the distressed rescue mode.

A wireless terminal device search method according to the present invention searches for a person having a wireless terminal device having a function of automatically registering the presence of the own device in a wireless base station within a transmittable / receiveable range or a position of the wireless terminal device. A method for installing a wireless base station in a mobile means, acquiring a calling telephone number of a wireless terminal device, using a wireless base station installed in the moving means, and using a previously obtained calling telephone number. The method is characterized by searching for a person who has the wireless terminal device or the position of the wireless terminal device based on the wireless terminal device.

According to the wireless terminal device searching method according to the present invention, the wireless base station installed in the moving means can be fluidly and quickly moved and arranged near a site such as a distress place or an abduction place. Even outside the station service area, it can be connected to a general line through the wireless base station of the mobile means, and can be notified of distress and incident situations. Therefore, it is possible to construct a distress search and rescue service system using a wireless terminal device whose penetration rate is increasing.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a wireless terminal device search system, a wireless terminal device and a wireless terminal device search method according to the present invention will be described with reference to the drawings.

(1) Embodiment FIG. 1 is a block diagram showing a configuration example of a wireless terminal device search system 100 as an embodiment according to the present invention. In this embodiment, using a wireless base station set up in the mobile means, and, based on the previously obtained calling telephone number, to search for a person who has a wireless terminal device or the position of the wireless terminal device, It is possible to construct a distress search and rescue service system capable of coping with a person who has a wireless terminal device whose penetration rate has been increased and is involved in an accident or an incident.

Wireless terminal device search system 1 shown in FIG. 1A
Reference numeral 00 denotes a system for searching for a person having the wireless terminal device 11 having a function of automatically registering the presence of the own device in the wireless base station or the position of the wireless terminal device 11 in the transmittable / receiveable range PEx. The system 100 includes a mobile unit 12 in which a radio base station 13 is installed. A vehicle such as a car, an aircraft such as a helicopter, or a boat such as a boat is used as the moving means 12. This is because the moving means 12 is moved and arranged fluidly and quickly near a site such as a distress place or an abduction place.

A radio base station (hereinafter referred to as a mobile radio base station 13) installed in the mobile means 12 is used, and
A person who has the wireless terminal device 11 or a position of the wireless terminal device 11 is searched for based on the calling telephone number acquired in advance. For example, when a person carrying the wireless terminal device 11 that has been turned on is distressed,
Information on the distress location of the distress who possesses the wireless terminal device 11 is acquired, and based on the distress location information, it is estimated that the mobile means 12 on which the wireless base station 13 is installed is the distress location shown in FIG. 1B. Is moved to the site.

In this system 100, a wireless terminal device of a distressed person uses a perch scan function for automatically registering the presence of the terminal itself in a fixed wireless base station in a fixed system service area (receivable range) PEx of the conventional system. 11 registers the presence of its own device in the mobile radio base station 13. When the location is registered, the mobile radio base station 13 can call the radio terminal device 11 of the victim based on the calling telephone number.

In this example, the mobile radio base station 13 calls the radio terminal device 11 of the victim, but after calling the radio terminal device a predetermined number of times, the radio terminal device 11 is started up and the distress rescue mode is set. Is started. The distress rescue mode refers to an operation in which the distress signal is continuously or continuously transmitted by the wireless terminal device 11 for a predetermined time.

The wireless terminal device 11 has a transmit / receive range P
Ex has a function of automatically registering the presence of its own device in the radio base station 13 and has at least a radio telephone function and a distress rescue mode for transmitting an distress signal based on the radio telephone function. ing. After the distress rescue mode is called by the mobile radio base station 13 a predetermined number of times, the radio telephone function itself is activated, or the mobile radio base station 13 activates the radio telephone function. This allows
It is possible to provide the self-supporting or other independent wireless terminal device 11 with a distressed rescue mode.

In this system 100, when the rescue mode is activated by the wireless terminal device itself, the wireless terminal device 11 is provided with a mode setting means, and in consideration of the emergency, An operation is performed to set in advance whether or not to receive the search and rescue service, such as mountain climbing. The distress search and rescue service refers to a service in which the number of calls from the mobile radio base station 13 is registered in advance, and if the number of incoming calls exceeding the number of calls is detected, the service is regarded as distress and a search can be performed.

When the distress search and rescue service is set in the wireless terminal device 11, the number of calls registered in advance and the number of calls in the wireless telephone function are compared, and when the number of calls exceeds the number of calls, Sends a distress signal by a wireless telephone function. This distressed rescue mode includes an operation of continuously transmitting its own calling telephone number. This is to make it easier for the mobile wireless base station 13 to search for the wireless terminal device 11.

In any case, the distress signal is transmitted by the wireless terminal device 11 by activating the distress rescue mode. When the distress signal is transmitted, the mobile radio base station 13 narrows down the source of the distress signal and specifies the position of the victim.

In this example, a variable directivity antenna system for position search is attached to the moving means 12. By controlling the directivity of the antenna, the position of the wireless terminal device 11 can be searched by the mobile wireless base station 13 even when the victim cannot talk.

Next, a method of searching for a wireless terminal device will be described. FIG. 2 shows a wireless terminal device 11 search system 100.
6 is a flowchart showing a processing example in. In this system 100, it is assumed that a person who has a wireless terminal device 11 with a function of automatically registering the presence of the own device in the wireless base station 13 or a position of the wireless terminal device 11 is searched within the transmittable / receiveable range PEx. I do. It is assumed that a variable directivity antenna system for position search is attached to the moving means 12.

On the premise of this, the radio base station 13 is installed in the moving means 12 such as a vehicle, an aircraft or a ship in step A1 of the flowchart shown in FIG. Thereafter, in step A2, the calling telephone number of the wireless terminal device 11 is obtained. The calling telephone number is obtained from a family member or the like involved in a distress or abduction case. Then, in step A3, site information such as a distress place and an abduction place is acquired. This is to narrow the search area as much as possible.

Based on the site information, the mobile radio base station 13 is moved to a site considered to be a distress place or abduction place in step A4. Then, even during movement, the directivity of the antenna is controlled by using the variable directivity antenna system for position search attached to the moving means 12. This is because the position of the wireless terminal device 11 is searched by the mobile wireless base station 13 in a state where the victim cannot talk.

When the search proceeds and the mobile radio base station 13 enters the transmission / reception range PEx of the wireless terminal device 11 such as a victim, the process proceeds to step A5 and moves from the victim's radio terminal device 11. The presence of the own device is registered in the wireless base station 13. At this time, a perch scan function for automatically registering the presence of the own device in the transmission / reception range PEx of the conventional fixed station service area with the wireless base station 13 is used.

Then, proceeding to step A6, the mobile radio base station 13 specifies the person who has the radio terminal device 11 or the position of the radio terminal device 11 based on the calling telephone number acquired in advance. . In this system 100, the mobile radio base station 13 calls the radio terminal device 11 of the victim based on the calling telephone number.

If there is no response to this call,
After calling the distressed person's wireless terminal device 11 a predetermined number of times, the mobile wireless base station 13 starts up the wireless terminal device 11 to forcibly activate the distress rescue mode. Activating the distress rescue mode causes the wireless terminal device 11 to transmit an distress signal.
The mobile radio base station 13 narrows down the source of the distress signal and specifies the position of the radio terminal device 11 of the victim.

As described above, according to the wireless terminal device search system 100 according to the embodiment of the present invention, the mobile wireless base station 13 is fluidly and quickly moved and arranged near the site such as a distress place or an abduction place. Even outside the fixed station service area, it can be connected to a general line through the mobile radio base station 13 and can be notified of distress and incident situations.
In addition, even when the victim is not in a state in which he / she can talk, if the power of the wireless terminal device 11 is turned on, the function of automatically registering the presence of the wireless terminal device 11 with the wireless base station 13 is used. In addition, by controlling the antenna directivity of the mobile radio base station 13, it is possible to search for the positions of victims and abductees. Therefore, it is possible to construct a distress search and rescue service system using the wireless terminal device 11 whose penetration rate is increasing.

(2) Embodiment FIG. 3 is an image diagram showing a configuration example of a distress search and rescue service system 200 as an embodiment according to the present invention. In this embodiment, a radio base station is set up on a helicopter as an example of transportation in the event of a distress accident in a mountainous area, and
Based on the calling telephone number acquired in advance, the location of the mobile phone holder is searched for, and if a mountain climbing enthusiast or the like who has a mobile phone whose penetration rate has been increasing becomes involved in a distress, it can be performed smoothly and quickly. The rescue operation was made possible.

The distress search and rescue service system 200 shown in FIG. 3 is used in connection with a fixed station service system, and has a function of automatically registering the existence (position) of the mobile phone itself in a mobile station service area in a radio base station. This is a system for searching for the position of a victim who has the mobile phone 101 and rescuing the victim. In this system 200, the mobile phone carrier is in charge of the mobile phone search section, and the actual rescue operation of the victims may be performed by a mountain rescue squad or the like.

The fixed station service system is provided with fixed wireless base stations (simply called fixed stations) 61, 62, etc., and a plurality of portable telephones 101 are contracted.
Each fixed station 61 and the like has a service area in a range where radio waves can reach, and a plurality of mobile phones 101... Exist in this service area. These fixed stations 61 and 62.
.. Are connected to a network 3 to which a home telephone 2 is also connected.

This distress search and rescue service system 200
Is provided with a helicopter 53 for searching for victims in which a radio base station (hereinafter simply referred to as a mobile station) 7 can be set up. An airplane, a car, or the like may be used as the transportation means in addition to the helicopter 53, and these may be combined. Mobile station 7 near the distress site fluidly and quickly
To move and arrange.

The mobile station 7 installed in the helicopter 53 is used, and a person carrying the mobile phone 101 or a position of the mobile phone 101 is searched for based on the calling telephone number obtained in advance. . For example,
In the case where the person carrying the mobile phone 101 with the power turned on is distressed, information on the distress location of the distressed person carrying the mobile phone 101 is obtained, and the mobile station is set based on the information on the distress location. Helicopter 53 with 7 built
Is moved to a mountain part or the like which is assumed to be a distress place shown in FIG.

Since the mobile station 7 is connected to the network 3 and has its own mobile station service area PEx, the mobile station 7 can communicate with the mountain section 5 within a radio wave range and the home telephone 2, Through the fixed stations 61, 62, etc., it is also possible to communicate with the mobile phone 101 in the fixed station service areas PE1, PE2, etc. In this system 200, the presence of the own device in the fixed station service area is determined by the wireless base station 1.
The mobile phone 101 of the victim in the mobile station service area PEx using the perch scan function that automatically registers the mobile phone 101 in the mobile station 101
From the mobile station 7 to register the presence of the own device.
With this registration, the mobile station 7 can call the victim's mobile phone 101 based on the calling telephone number.

FIG. 4 is a block diagram showing an example of the internal configuration of the mobile station 7. As shown in FIG. FIG. 5 is a perspective view showing a configuration diagram of the antenna body. The mobile station 7 shown in FIG. 4 is provided with a variable directivity antenna system 71 for position search. The variable directivity antenna system 71 includes, for example, an antenna body 70, an antenna interface 17, and a directivity control device 18.

As the antenna body 70, an adaptive array antenna having a plurality of antenna elements as shown in FIG. 5 is used. The adaptive array antenna includes eight Yagi antennas AN1 to AN8, for example, an arrangement interval θ ° = 45 °.
(Around the counterclockwise direction) radially. The antenna body 70 is not limited to this, and may be any antenna having a structure that can vary from omnidirectional to extremely narrow directivity. The antenna 70 is a helicopter 5 (not shown).
3 and is fixed to the lower part of the antenna 3, and the directivity of the antenna 70 is controlled.

In this example, when the traveling direction of the helicopter 53 is set to 0 °, one Yagi antenna 70 is set as a reference antenna, and the reference antenna is positioned in the traveling direction. In this example, the antenna body AN1 is used as a reference antenna body. This is to clarify the position of the helicopter 53 and the position of the reference antenna body AN1, thereby improving the calculation accuracy when the position of the victim is specified. This allows the mobile station 7 to search for the position of the mobile phone 101 even when the victim cannot call.

Returning to FIG. 4, the antenna 70 is used when the victim's mobile phone 101 detects the presence of the aircraft itself, receives a distress signal, and transmits a call signal and a start signal. An antenna interface 17 is connected to these antennas 70, and inputs of eight antennas 70 are selected. This is for specifying the direction of the source of the distress signal transmitted from the victim's mobile phone 101. The directivity control device 18 is connected to the antenna interface 17, and outputs a control signal to the antenna interface 17 to select the antenna body 70,
The direction of the source of the distress signal from the distressed person's mobile phone 101 is specified.

Further, a radio processing unit 72 is connected to the antenna interface 17 so as to process a signal received from the mobile phone 101 of the victim and a signal transmitted to the mobile phone 10. The wireless processing unit 72 includes a DSP
(Digital Signal Processor) 73 is connected, and performs digital signal processing on the reception signal and the transmission signal. A memory 74 is connected to the DSP 73 so that received data and transmitted data are temporarily stored. A communication network interface 75 is connected to the memory 74, and the fixed telephone service area P through the home telephone 2 or the fixed stations 61, 62,.
Communication processing is performed with the mobile phones # 1, # 2, etc. in E1, PE2.

The above-mentioned memory 74 and directivity control device 18
Is connected to a CPU 78, and an input device 77 and a liquid crystal display monitor 76 are connected to the CPU 78. The input device 77 sets a distress search and rescue mode,
It is used when inputting the position coordinates of the helicopter 53. The liquid crystal display monitor 76 displays a map of the mountainous area 5 and a distress location.

In the CPU 78, the memory 74 and the directivity control device 1 are controlled based on a control command issued from the input device 77.
8. It controls the liquid crystal display monitor 76 and the like.
For example, the CPU 78 performs a process for calling the mobile phone 101 of the victim from the mobile station 7 or calls the mobile phone 101 a predetermined number of times.
To activate the distress rescue mode. Further, the CPU 78 controls the display of the position of the victim as well as the position coordinates of the helicopter 53 on the liquid crystal display monitor 76, and marks the display position narrowed down as the distress position.

Next, an example of directivity control in the antenna body 70 attached to the helicopter 53 will be described with reference to FIGS. FIG. 6 shows an example of the omni-directionality of the adaptive array antenna. 7A and 7B are image diagrams showing search examples on the port side and the starboard side in the antenna 70, and FIGS. 8A and 8B are image diagrams showing search examples on the starboard rear and the starboard front in the antenna 70.

In this example, the antenna 70 is attached and fixed below the helicopter 53 (not shown), and the directivity of the antenna 70 is controlled. The reference antenna body AN1 is aligned with the traveling direction of the helicopter 53 at 0 °, and in this example, it is assumed that the source of the distress signal exists in the victim's mobile phone 101 in the forward direction on the starboard side.

On the premise of this, when the helicopter 53, which has set up the mobile station 7, is moved to a place considered to be a distress place or abduction place, as shown in FIG. The AN 8 is operated to have directivity in all directions. This is to prevent the radio wave from the victim's mobile phone 101 from being missed.

Further, even during movement, the directivity of the antenna is controlled by using the variable directivity antenna system 71 for position search attached to the helicopter 53. Since there is a state where the victim cannot talk, the mobile phone 10
This is because the mobile station 7 searches for the position 1.

When the search proceeds and the helicopter 53 enters the mobile station service area of the mobile phone 101 of the victim or the like, the location of the self-machine is registered from the mobile phone 101 of the victim to the mobile station 7. It is done as follows. At this time,
A perch scan function for automatically registering the presence of the own device in the fixed station service area of the conventional system with the mobile station 7 is used. After the location registration, the directivity of the antenna 70 of the mobile station 7 is switched to search for the location of the victim. In other words, the mobile phone 10 of the victim
The position of the victim is determined by determining whether or not 1 exists.

In the antenna 70 shown in FIG. 7A, in order to search the port side of the helicopter 53, the antennas AN1, AN2, AN3, A3 are set so that the total directivity is reduced to about half.
Select the received radio wave of N4AN5 and the victim's mobile phone 1
It is configured to detect whether or not a received radio wave from 01 to the mobile station 7 exists. In this example, the victim's mobile phone 1
In No. 01, the received radio wave is not detected because the source of the distress signal exists in the forward direction on the starboard side.

Thereafter, as shown in FIG. 7B, to search the starboard side of the helicopter 53, the antennas AN5, A
The reception radio waves of N6, AN7, AN8, and AN1 are selected to detect whether or not the reception radio waves from the victim's mobile phone 101 to the mobile station 7 exist. In this example, the mobile phone 101 of the victim has a source of the distress signal in the forward direction on the starboard side, so that the received radio wave is detected. And
The directionality gradually narrowed, and the victim's mobile phone 101
Identify the location of

For example, as shown in FIG. 8A, in order to search on the starboard side, the radio waves received by the antennas AN5, AN6, AN7 are selected, and the radio waves from the portable telephone 101 of the victim to the mobile station 7 are present. Is detected. In this example, since the source of the distress signal exists on the starboard side of the mobile phone 101 of the victim, no received radio wave is detected. In order to further narrow the directivity, as shown in FIG.
The reception radio waves of N8 and AN1 are selected to detect whether or not a reception radio wave from the victim's mobile phone 101 to the mobile station 7 exists.

In this example, since the source of the distress signal is present in the portable telephone 101 of the distressed person in the forward direction on the starboard side, the received radio wave is detected. In particular, in this example, since the radio wave received by the antenna body AN8 is received most strongly, the source of the distress signal from the victim's mobile phone 101 is 315 ° with respect to the traveling direction 0 ° of the helicopter 53, that is, on the starboard side. It becomes clear that the victim is in the direction of -45 °.

Next, a display example of the distress position on the liquid crystal display monitor 76 will be described. FIG. 9 is an image diagram showing a display example of the distress position Px on the liquid crystal display monitor 76. In this example, the topographic image of the site and the map information are superimposed and displayed on the liquid crystal display monitor 76. On the liquid crystal display monitor 76, the position of the mobile phone 101 held by the victim is obtained by a method of finding a point where two straight lines intersect,
It is assumed that the position coordinates are displayed.

Therefore, at least the helicopter 53
The direction of the mobile phone 101 is searched at two points. In this example, the measurement point (first fovering position)
At P1, for example, a direction about -100 ° behind starboard with respect to the victim's mobile phone 101 is found. Thereafter, it is assumed that the user moves the fovering position of the helicopter 53 and finds, for example, a direction of about + 30 ° ahead of port with respect to the victim's mobile phone 101 at the measurement point (second fovering position) P2.

The measured values of these two points P1 and P2 are input to the CPU 78 of the mobile station 7, and are displayed on the liquid crystal display monitor 76 in a superimposed manner. A point where two straight lines intersecting at the two points P1 and P2 are found, and the position Px of the mobile phone 101 of the victim is calculated by the CPU 78. By linking this calculation result to the map information, the position Px of the victim
Can be specified.

Subsequently, the distress search and rescue service system 2
The mobile phone 101 applied at 00 will be described. FIG. 10 is a block diagram showing an example of the internal configuration of the mobile phone 101. The mobile phone 101 shown in FIG. 10 has a wireless telephone function and a self-sustaining distress rescue mode for transmitting an distress signal based on the wireless telephone function, and determines the presence (position) of the mobile phone in the mobile station service area. It has a function of automatically registering with the mobile station 7. In the distress rescue mode, after being called by the mobile station 7 a predetermined number of times, the wireless telephone function itself is activated.

The mobile phone 101 is provided with a CPU 33 for executing a rescue mode, and an internal bus 38 is connected to the CPU 33. The internal bus 38 is connected to a wireless receiving unit 41, a received signal processing unit 42, a transmission signal processing unit 43, a wireless transmitting unit 44, and the like that constitute a wireless telephone function. An antenna duplexer 45 is connected to the wireless receiving unit 41 and the wireless transmitting unit 44 and is connected to the antenna 26.

In the radio receiving section 41, the radio wave received by the antenna 26 is separated from the transmission signal by the antenna duplexer 45, and only the reception signal of a predetermined carrier frequency is selected.
The received signal is amplified at a high frequency by a low noise amplifier or the like. The amplified received signal is mixed with the signal of the local oscillation frequency, and the intermediate frequency received signal is separated from the mixed signal. The received signal is subjected to quadrature demodulation processing after being amplified by the intermediate amplifier. The received signal after quadrature demodulation is analog
It is digitally converted to digital reception information.

After the control message and the voice compression information are demodulated from the received information, the error is corrected. The control message is output to the CPU 33. This audio compression information is output from the wireless reception unit 41 to the reception signal processing unit 42. In the reception signal processing unit 42, the audio compression information is decoded and decompressed. The expanded audio information is digital-to-analog converted and then amplified and output from the speaker 24 for the receiver. The reception signal processing unit 42 includes a rear speaker 3
2 is connected, and a call is received with an onomatopoeic sound such as "beep, beep, beep ..." at the time of an incoming call. The aim is to aim for those who are fainted.

A transmission signal processing unit 43 is connected to the microphone 28, and after its own audio signal is amplified, it is converted from analog to digital. The converted audio information is encoded and compressed. The encoded audio compression information is output from the transmission signal processing unit 43 to the wireless transmission unit 44. In the wireless transmission unit 44, the control message from the CPU 33 and the voice compression information are synthesized, and an error correction code is further added. The transmission information after the sign is added is modulated. The modulated transmission information is digital-to-analog converted. The converted transmission signal is amplified after being converted to an intermediate frequency transmission signal. The carrier frequency signal is modulated by the amplified transmission signal, power-amplified, and radiated from the antenna 26 toward the radio base station.

The mobile phone 101 is provided with an operation button 25 as an example of a setting means, and is operated so as to set in advance that the distress search and rescue service is to be received, such as mountain climbing. If this operation is performed in advance, if the number of incoming calls exceeding the number of calls registered and stored in advance is detected, it is regarded as distress and a search can be performed (distress search and rescue service). The number of calls may be set as an incoming timer value. In this case, the incoming timer value is set to a time such as 10 minutes.

Further, when the distress search and rescue service is set, the CPU 33 compares the number of calls registered in advance with the number of calls received in the wireless telephone function, and transmits the received call if the number of calls exceeds the number of calls. The distress signal is transmitted by the signal processing unit 43 and the wireless transmission unit 44.

This distressed rescue mode includes an operation of continuously transmitting its own calling telephone number. When this is defined as the continuous transmission mode, the continuous transmission mode is automatically set when the distressed rescue mode is activated.
In the continuous transmission mode, the distress signal is transmitted continuously after the setting, but it is desirable that the mobile station finish the search within this time. In this case, the mobile station 7 changes the directivity of the antenna 70 to search for the transmission radio wave of the victim's mobile phone 101. At this time, the link between the mobile phone 101 and the mobile station 9 is not interrupted. From the mobile phone 101,
This is because it is necessary to continue transmitting radio waves to some extent.

At this time, how long the radio wave is transmitted is set by a timer, and if the mobile station 7 cannot be searched during that time, the location registration from the portable telephone 101 of the victim to the mobile station 7 is performed again. It shall be. This is to make it easier for the mobile station 7 to search for the mobile phone 101. When the distress signal is transmitted, the mobile station 7 narrows down the source of the distress signal and specifies the position of the victim.

An EEPROM 36 is connected to the internal bus 38, and stores a control program for executing the distress rescue mode, the number of incoming calls, and the name of the other party. The EEPROM 36 also records telephone numbers such as speed dials. Further, a ROM 34 is connected to the internal bus 38, and each control program CP for controlling the entire mobile phone 101 is stored.

As for the control program CP, the display control of the liquid crystal display 23, the control procedure of the transmission processing using the communication modem such as the transmission signal processing 43 and the radio transmission section 44, and the communication of the radio reception section 41 and the reception signal processing 42 are performed. Describes a control procedure for reception processing using a modem. The control program CP is stored in the EEPROM 34 in addition to the EEPROM 34.
OM36 may be used. This is because the control program CP can be rewritten at the time of version upgrade.

Further, the liquid crystal display 23, the RAM 35, and the external I / O interface 37 are connected to the internal bus 38. The liquid crystal display 23 displays the telephone numbers of the other party and the own station, messages from the other party, character information to be transmitted to the other party, various event information contents, and the like, which are performed based on the control program CP. The RAM 35 is used as a working memory,
Character information such as a control message and a message when the user is absent by the wireless receiving unit 41 is temporarily recorded.

Further, an I / O interface unit 39 is connected to the CPU 33, and the I / O interface unit 39
Is connected to an operation button 25 and a key array 27. The number of calls may be set as an incoming timer value. In this case, the incoming call timer value is made to be recognized by the CPU 33 by operating the operation button 25 or the key array unit 27. The incoming call timer value is set at a time such as 10 minutes. Normally, the key array 27 is operated when inputting a telephone number and character information to the CPU 33.

The incoming call timer value is set in the EEPROM 36 or the like. The number is set to twice or three times the normal number of incoming calls so as not to be mistaken for distress. CP
In U33, the distress rescue mode is set, and when receiving the distress search and rescue service, the control program CP is read from the ROM 34 and information processing is performed according to the control program CP.

As for information processing, after being called by the mobile station 7 a predetermined number of times, the radio telephone function itself is activated. Communication control using a communication modem such as the transmission signal processing 43 and the wireless transmission unit 44 is performed. Although not shown, a vibrator is attached to the main body of the mobile phone 101,
The incoming call may be notified. The aim is to aim for stunned victims.

An external I / O interface 37 is connected to the internal bus 38 to reach a USB terminal for an external device (not shown) and use an external personal computer, an external IC card, and a communication modem. The expanded information processing can be extended. This is convenient when rewriting the control program in the distress rescue mode. of course,
A power supply unit 93 is connected to these function processing circuits, and the power switch SW is turned on whenever receiving a distress search and rescue service. When the power is turned on, the mobile phone 101 enters a standby state. The standby state refers to the CPU 33 of the mobile phone 101, the LC,
This is a power saving state in which power is not supplied to the system LSI such as D23 except for the clock function.

As described above, according to the mobile phone 101 according to the embodiment of the present invention, when the person carrying the mobile phone 101 is distressed or the mobile phone 101 is lost, When the power of the telephone 101 is turned on, by internally activating the distress rescue mode, the position of the distressed person or the like carrying the mobile phone 101 is searched based on the distress signal transmitted in this mode. can do.

Next, a method for searching for the mobile phone 101 will be described with reference to FIGS. FIG. 11 shows an example of processing performed by the holder of the mobile phone 101, and FIGS. 12 and 13 show the mobile station 7 of the distress search and rescue service system 200.
14 are flowcharts showing examples of processing in the mobile phone 101 of the victim.

In this system 200, a person who possesses a portable telephone 101 having a function of automatically registering the presence of the portable telephone in the mobile station service area with the mobile station 7 or the portable telephone 1.
It is assumed that a search is made for the position 01. The helicopter 53 has a variable directivity antenna system 71 for position search.
It is assumed that is attached.

Based on this, the owner of the mobile phone 101 who climbs the mountain checks whether or not the power of the mobile phone 101 has been turned on in step B1 of the flowchart shown in FIG. The check at this time is the owner himself. Thereafter, in step B2, the holder checks whether the distressed rescue mode has been set.

If the mode has not been set, the flow shifts to step B3, and the operation button 25 is operated to operate the CPU 33.
Set the distressed rescue mode. Then, step B4
And confirms whether the holder has set the incoming call timer. If the incoming call timer has not been set, the process proceeds to step B5, and the operation button 25 or the key array unit 27 is operated to set the incoming call timer in the CPU 33. This set of the incoming call timer is intended to prevent the user from being mistaken for distress.

If the person carrying the mobile phone 101 does not return home after passing the scheduled descent, a family member or the like submits a search request to the distress search and rescue service system 200 (distress case). In response to this, in the case of a mountain rescue squad under the distress search and rescue service system, if a search request is made in step C1 of the flowchart shown in FIG.

Thereafter, the process proceeds to step C3, in which the system 200 acquires rough distress location information from the climbing plan of the holder of the portable telephone set 101 in order to make the search area slightly smaller. At the same time, the calling telephone number of the mobile phone 101 of the holder (hereinafter referred to as the “distressed person”) who is considered to be distressed by family members is acquired.

Thereafter, the process proceeds to step C 4, where the mobile radio base station (mobile station) 7 is installed in the helicopter 53. Then, based on the distress location information and the calling telephone number of the mobile phone 101, the helicopter 53 that has set up the mobile station 7 in step C5 is moved to a site considered to be a distress location.

Then, even during the movement, the directivity of the antenna 70 is controlled in step C6 by using the variable directivity antenna system 71 for position search attached to the helicopter 53. Here, the eight antennas AN1 to AN8 shown in FIG. 6 are operated to have directivity in all directions. This is to prevent the radio wave from the victim's mobile phone 101 from being missed.

The search proceeds and the helicopter 53 enters the mobile station service area of the mobile phone 101 of the victim, but the mobile station 7 registers the location from the mobile phone 101 in the service area in step C7. Is constantly monitored. When the helicopter 53 enters the mobile station service area of the victim's mobile phone 101, the mobile station 7 sends the victim's mobile phone 10 in step C8.
It is detected whether there has been an existing position registration from No. 1.

At this time, it is checked whether or not the mobile station 7 can be recognized by the victim's portable telephone 101 in step E1 of the flowchart of FIG. The process of recognizing the mobile station in the mobile phone 101 is continuously performed until the battery runs out. Therefore, when the mobile station service area approaches the mobile phone 101 possessed by the victim and the transmission radio wave arrives, the process proceeds to step E2, where the location of the mobile station 7 is registered with the mobile station 7.

If there is no such position registration, the flow returns to step C6 in the flowchart of FIG. 12 to control the directivity of the antenna 70 again. After the location registration, the directivity of the antenna 70 of the mobile station 7 is switched to search for the location of the victim. In other words, the position of the victim is specified by determining in which direction the mobile phone 101 of the victim is located.

If there is a location registration from the victim's mobile phone 101 in step C8, the process proceeds to step C8.
Then, the mobile station 7 makes a call to the mobile phone 101 of the victim in step 9. At this time, the mobile phone 101
In step E3 of the flowchart shown in FIG. 14, it is checked whether there is a call, and in the mobile station 7, it is checked whether there is a call in step C10 of the flowchart in FIG. If there is no call, mobile phone 101
In the mobile station 7, if there is no response from the victim, the process proceeds to step C13 and the mobile phone 10
The call to 1 is continued. Mobile station 7 with mobile phone 101
If there is a call from, the process goes to step E4 to detect whether or not to respond.

When the call is accepted, the victim survives,
In the system 200, the flow proceeds to step C11 in the flowchart shown in FIG. 13, and the distressed person directly checks the distress situation, distress position, and the like. Then, step C1
In step 2, the helicopter 53 is moved to the distress position, and the victim is rescued.

Therefore, when the mobile phone 101 does not answer, the number of calls registered in advance is compared with the number of calls received in the wireless telephone function. The distress signal is transmitted by the wireless transmission unit 44.

For example, the flow shifts to step E6 in the flowchart shown in FIG. 14 to reduce the incoming call timer value by one each time the number of calls is increased, and it is determined in step E7 whether the incoming timer value has become "0". . If the incoming timer value is not "0", the process returns to step E4, and every time the number of calls increases by one, the process goes to step E6 to decrease the incoming timer value by one. When the incoming call timer value becomes "0", the process proceeds to step E8 to start the distress rescue mode.

In this example, when the distress rescue mode is activated,
A continuous transmission mode for continuously transmitting distress signals is set. The continuous time after the continuous transmission mode is set is measured, and the process proceeds to step E9 to check whether a predetermined continuous time has elapsed. If the continuous time has not elapsed, the process proceeds to step E10, and the distress signal is continuously transmitted. If this continuous time has elapsed, the process proceeds to step E11, where it is checked whether there is a remaining battery level. The control is terminated when there is no remaining battery power. If there is remaining battery power, the process returns to step E3 to check whether there is a call.

In response to this, the mobile station 7 checks whether or not the distress signal has been received in step C14 of the flowchart shown in FIG. When the distress signal is received, the process proceeds to step C15 to narrow the antenna directivity to the source of the distress signal as described with reference to FIGS. Then, the process shifts to step C16 to check whether two or more directions have been specified. If two or more directions have not been specified, the process proceeds to step C17 to check whether an distress signal has been received. If the distress signal has been received, the process returns to step C15 to control the antenna directivity to narrow down the source of the distress signal. The helicopter 53 has at least two points P1,
At P2, the direction of the mobile phone 101 is searched.

If the distress signal cannot be received, the process goes to step C18 to move the helicopter 53, and then goes to step C9 where the mobile station 7 calls the victim's portable telephone 101 again. You. Therefore,
If two or more directions have been specified in step C16, the process proceeds to step C19, where the distress position is calculated.

In this example, the measured values at the two points P1 and P2 are input to the CPU 78 of the mobile station 7, and are superimposed and displayed on the liquid crystal display monitor 76. 2 by two points P1, P2
The point where the straight line intersects is found and the victim's mobile phone 101
Is calculated by the CPU 78. By linking this calculation result to the map information, the position P of the victim
x can be specified on the liquid crystal display monitor 76 (see FIG. 9). When the position Px of the victim is specified, the process proceeds to step C20, where the helicopter 53 is moved to the distress position to rescue the victim. Then, in step C21, the helicopter 53 is returned to the heliport,
At 22, the mobile radio base station is dissolved.

As described above, the mobile phone 10 according to the present invention
According to the search method 1, the mobile station 7 installed in the helicopter 53 can be fluidly and quickly moved to the distress location, and the mobile station 7 can be placed outside the fixed station service area through the radio base station 13 of the helicopter 53. Can be connected to and notified of distress situations.

Further, even when the victim is not in a state where he / she can talk, if the power switch SW of the mobile phone 101 is turned on, a function of automatically registering the existence of the mobile phone 101 in the mobile station 7 is provided. By using and controlling the antenna directivity of the mobile station 7, it is possible to search for the positions of victims and abductees. Therefore, it is possible to construct the distress search and rescue service system 200 using the mobile phone 101 whose penetration rate is increasing.

In this embodiment, the case of the antenna body 70 having eight Yagi antennas has been described. However, the present invention is not limited to this. May be used to search for the mobile phone 101 of the victim. In this case, the antenna element may be movable with respect to the rotation support portion, and the antenna element may move up and down in the Z direction. This makes it possible to measure the angle at which the victim looks down at the direction of the portable telephone 101 of the victim from the helicopter 53. This function may be introduced into the antenna 70.

In this embodiment, the search and rescue of a mountain climbing enthusiast in the event of a distress has been described. However, the present invention is not limited to this. The present invention can also be applied to a system for confirming the presence of a wandering elderly person who has a mobile phone with the button turned on.

[0100]

As described above, according to the wireless terminal device search system according to the present invention, a wireless base station installed in a mobile means is used, and a wireless communication is performed based on a previously acquired calling telephone number. The position of the person who has the terminal device or the position of the wireless terminal device is searched.

According to this configuration, the radio base station installed in the mobile means can be moved and arranged quickly and in the vicinity of the site such as a distress place or an abduction place. It can be connected to a general line through a wireless base station, and can report the situation of distress or incident. Moreover, even if the victim is not in a callable state,
When the power of the wireless terminal device is turned on, the function of automatically registering the presence of the wireless terminal device with the wireless base station and controlling the antenna directivity of the wireless base station of the moving means can be used for the victim. And the location of abductees.

According to the wireless terminal device of the present invention, an emergency rescue mode for transmitting an emergency signal based on a wireless telephone function is provided.

With this configuration, if the person carrying the wireless terminal device is distressed or lost, and the wireless terminal device is powered on, the internal or By externally activating the distressed rescue mode, it is possible to search for the position of a victim or the like who has the wireless terminal device.

According to the wireless terminal device searching method according to the present invention, a person who has a wireless terminal device with a function of automatically registering the presence of the own device with the wireless base station within the transmittable / receivable range or the position of the wireless terminal device When searching for a mobile phone, a wireless base station is set up in a mobile means, a calling telephone number of a wireless terminal device is acquired, a wireless base station installed in the mobile means is used, and a calling telephone acquired in advance is used. The person who has the wireless terminal device or the position of the wireless terminal device is searched based on the number.

According to this configuration, the radio base station installed in the moving means can be moved and arranged rapidly and in the vicinity of the site such as a distress place or abduction place. It can be connected to a general line through a wireless base station, and can report the situation of distress or incident.

The present invention is very suitable when applied to a distress search and rescue service system capable of coping with a person who has a portable telephone whose penetration rate has increased and is involved in a distress or case.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration example of a wireless terminal device search system 100 as an embodiment according to the present invention.

FIG. 2 is a flowchart illustrating a processing example in the wireless terminal device search system 100;

FIG. 3 is an image diagram showing a configuration example of a distress search and rescue service system 200 as an embodiment according to the present invention.

FIG. 4 is a block diagram showing an example of the internal configuration of a mobile radio base station 7.

FIG. 5 is a perspective view showing a configuration example of the antenna body 70.

FIG. 6 is a characteristic diagram showing an example of omni-directionality of the antenna 70.

FIGS. 7A and 7B are image diagrams showing examples of searching for a port side and a starboard side in the antenna body 70. FIGS.

8A and 8B are image diagrams showing examples of searching for starboard rearward and starboard frontward in the antenna body 70. FIG.

9 is an image diagram showing a display example of a distress position Px on the liquid crystal display monitor 76. FIG.

FIG. 10 is a block diagram showing an example of the internal configuration of the mobile phone 101.

FIG. 11 is a flowchart illustrating a processing example in a holder of the mobile phone 101;

FIG. 12 is a flowchart illustrating a processing example (part 1) in the mobile station of the distress search and rescue service system 200;

FIG. 13 is a flowchart showing a processing example (No. 2) in the mobile station of the distress search and rescue service system 200.

FIG. 14 is a flowchart showing an example of processing in a distressed cell phone 101;

FIG. 15 is an image diagram showing a configuration example of a mobile phone service system 1 according to a conventional example.

[Explanation of symbols]

11: wireless terminal device, 12: moving means, 13
..Radio base stations, 17 ... antenna interfaces,
18 ... directional control device, 70 ... antenna body, 7
DESCRIPTION OF SYMBOLS 1 ... Variable directivity antenna system, 100 ... Wireless terminal device search system, 101 ... Mobile telephone, 2
00 ・ ・ ・ Distress search and rescue service system

 ──────────────────────────────────────────────────続 き Continued on the front page F-term (reference) KK03

Claims (19)

[Claims] 1. A system for searching for a person who has a wireless terminal device having a function of automatically registering the presence of the own device in a wireless base station within a transmittable / receiveable range or a position of the wireless terminal device, A mobile station provided with a station, using a radio base station installed in said mobile means, and
A wireless terminal device search system for searching for a person holding the wireless terminal device or a position of the wireless terminal device based on a calling telephone number acquired in advance. 2. A case where a person carrying the wireless terminal device which is turned on is distressed, and obtains information on a distress place related to the person carrying the wireless terminal device, and obtains information on the distress place. Moving the mobile means provided with the wireless base station to a site presumed to be the distress location based on the above, and registering the existence of the own apparatus from the wireless terminal device of the distressed person to the wireless base station of the mobile means The wireless terminal device search system according to claim 1, wherein: 3. The wireless terminal device search system according to claim 2, wherein the wireless base station of the moving means calls the wireless terminal device of the victim based on the calling telephone number. 4. The radio base station of the moving means, wherein after calling the distressed person's wireless terminal device a predetermined number of times, the operation of the wireless terminal device is started to activate the distress rescue mode. The wireless terminal device search system according to claim 2, wherein: 5. The wireless terminal device search system according to claim 4, wherein the distress signal is transmitted by the wireless terminal device when the distress rescue mode is activated. 6. The wireless terminal device search according to claim 2, wherein the wireless base station of the moving means narrows down a source of the distress signal and specifies a position of the distressed person. system. 7. The wireless terminal device search system according to claim 1, wherein a variable directivity antenna system for position search is attached to the moving means. 8. A wireless terminal device having a function of automatically registering the presence of its own device in a wireless base station within a transmittable / receiveable range, comprising: a wireless telephone function; A wireless terminal device comprising a rescue mode. 9. The distress rescue mode is such that, after being called by a specific wireless base station a predetermined number of times, the wireless telephone function itself is activated or the wireless base station activates the wireless telephone function. Claim 8
A wireless terminal device according to claim 1. 10. A case where the rescue mode is activated by the wireless telephone function itself, wherein the number of calls from the wireless base station is registered in advance and the number of incoming calls exceeding the number of calls is detected. 9. The wireless terminal according to claim 8, further comprising: setting means for setting in advance that the service that can be searched and regarded as distress is a distress search and rescue service. apparatus. 11. A method of comparing the number of calls registered in advance with the number of calls received in the wireless telephone function, and transmitting an distress signal by the wireless telephone function when the number of calls exceeds the number of calls. 11. The method according to claim 10, wherein
A wireless terminal device according to claim 1. 12. The wireless terminal device according to claim 8, wherein the distress rescue mode includes an operation of continuously transmitting a calling telephone number of the terminal itself. 13. A method for searching for a person who has a wireless terminal device having a function of automatically registering the presence of the own device in a wireless base station within a transmission / reception range or a position of the wireless terminal device, the wireless base station comprising: Set up a station in a mobile means, obtain a calling telephone number of the wireless terminal device, use a wireless base station set up in the mobile means, and
A method for searching for a wireless terminal device, wherein a search is made for a person having the wireless terminal device or a position of the wireless terminal device based on a calling telephone number acquired in advance. 14. A distressed person having the wireless terminal device who is powered on, wherein information on the distress location of the distressed person having the wireless terminal device is obtained, and the distress location information is obtained. Moving the mobile means provided with the wireless base station to a site presumed to be the distress location based on 14. The wireless terminal device search method according to claim 13, wherein: 15. The wireless base station of the mobile means, wherein the wireless terminal device of the victim is called based on the calling telephone number.
3. The wireless terminal device search method according to claim 1. 16. The radio base station of the moving means, wherein after calling the radio terminal device of the distressed person a predetermined number of times, the radio terminal device is activated to activate the distress rescue mode. 14. The wireless terminal device searching method according to claim 13. 17. The wireless terminal device search method according to claim 16, wherein the distress signal is transmitted by the wireless terminal device when the distress rescue mode is activated. 18. The wireless terminal device search according to claim 17, wherein the mobile base station of the moving means narrows down a source of the distress signal and specifies a position of the distressed person. Method. 19. The wireless terminal device search method according to claim 13, wherein a variable directivity antenna system for position search is attached to the moving means.