JP2007074574A - Mobile communication device and group monitoring system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To form a group with a simple method and to notify isolation from the group, without requiring much costs. <P>SOLUTION: A registration processing section 122 forms a group by storing an input common group code 102 in a storage section 120, and a transmission processing section 123 periodically transmits a calling signal 104, based on the common group code 102 stored in the storage section 120, from a short-distance communication section 112 in accordance with a transmission term t1. A reception processing section 124 receives, by the short-distance communication section 112, the calling signal 104 containing the common group code 102, transmitted from another mobile communication equipment 103 and when the calling signal 104 containing the common group code 102 can not be received as long as or longer than an isolation warning time t2, a warning is issued. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a mobile communication device and a collective monitoring system having a short-range communication function for performing direct wireless communication with a mobile communication device at a short distance, and in particular, monitoring a departure from a group using the short-range communication function. The present invention relates to a portable communication device and a collective monitoring system.

  A service for tracking the current position based on the position information based on the GPS positioning signal of a mobile communication device by carrying or attaching a mobile communication device to a child, an elderly person, a car, a two-wheeled vehicle, or a pet has already been commercialized ( For example, Non-Patent Document 1) and various systems for notifying that they have left the group are described in the literature (for example, Patent Document 1, Patent Document 2, and Patent Document 3).

  In Non-Patent Document 1, for example, when a child carrying a mobile communication device gets lost, the monitoring center that is contacted by the parent requests the child's mobile communication device to transmit the current position, and the child There is a service for notifying the parent of the current position of the mobile phone and a service for tracking the current position by displaying the position information transmitted from the portable communication device every predetermined time on a personal computer or the like.

  The search system of Patent Document 1 is installed in a facility when a lost band or a search for a lost child is carried by carrying a wristband or a linked folder with a bar code for identifying a group to an attendant. When a terminal is read to register a lost child or registered to search for a lost child, the position of the terminal where the lost child information is registered first is displayed on the terminal registered later.

  In the mobile phone system of Patent Literature 2, when group setting information in which a plurality of mobile communication devices are grouped is registered in the base station, and the mobile communication device registered in the group setting information exits from the communication service area of the base station, Notify other mobile communication devices in the same group.

In the car navigation device of Patent Document 3, the position information based on the GPS signal of the leader vehicle is periodically transmitted to other vehicles. In other vehicles, the leader obtained from the position information based on the GPS signal of the own vehicle and the position information of the leader vehicle. When the distance to the vehicle exceeds a predetermined value, a warning message is automatically issued to search for a route that catches up with the leader vehicle.
Cocosecom brochure, December 4, 2003 edition Japanese Patent Laying-Open No. 2003-150741 (FIG. 7) Japanese Patent No. 3015708 (FIG. 5) JP 2002-168640 A (FIG. 3)

  However, in conventional services that have been commercialized, location searches are not performed until the child is lost or kidnapped, so when a location search is performed, it goes far. Sometimes, after being taken away, the situation was irreversible. Also, in Patent Document 1, in order to display the position of the terminal where the lost child information is registered, both the lost child and the person who searches for the lost child must go to the terminal and register in the facility where the terminal is installed. So there is a burden on both the lost child and the person looking for the lost child.

  In particular, for those who act in groups, it is more preferable to have them be monitored so as not to leave the group before getting lost, rather than looking for their place after getting lost. Even if the monitored area is within the base station communication area and the base station communication area is large, it may get lost, but if it does not go out of the base station communication area, it is notified to other mobile communication devices. There is nothing.

  In order to recognize that the user is away from a specific partner without fixing the area, as shown in Patent Document 3, the distance information obtained from the GPS signal may be used to calculate the distance to each other. Since it is necessary to calculate the distance between each other, it is expensive and labor intensive to build and operate a calculation processing system, and the service cost is high. .

  The present invention has been made in view of such points, and it is an object of the present invention to provide a portable communication device and a group monitoring system that form a group by a simple method and notify the group without cost when leaving the group. And

  The mobile communication device of the present invention includes a short-range communication means for performing direct wireless communication with a mobile communication device at a short distance, a storage means for storing group information for identifying a group formed by a plurality of mobile communication devices, Monitoring means for monitoring that communication by the short-range communication means can be performed with another portable communication device that forms the same group based on the group information, and other portable communication devices that form the same group in the monitoring means In the case where communication by the distance communication means cannot be performed, a notification means for notifying that the vehicle has left the group is provided.

  According to the present invention, there is an effect that when a group is formed by a simple method and it is separated from the group, it can be notified without cost.

  Hereinafter, the first embodiment, the second embodiment, the third embodiment, and the fourth embodiment by the monitoring system of the present invention will be described in detail with reference to the drawings.

(Embodiment 1)
In the first embodiment, in a group formed by portable communication devices in which a common group code is registered as a group code of the local station, short-range communication that transmits and receives a call signal including the common group code is performed, and the common group code is When it becomes impossible to receive a call signal including the call signal, a warning is issued that the mobile communication device has left the group.

  FIG. 1 is a block diagram showing a configuration of a collective monitoring system according to Embodiment 1 of the present invention. In FIG. 1, a group monitoring system 101 includes two portable communication devices 103a and 103b that register a common group code 102 as a group code of their own station to form a group, and each of the portable communication devices 103a and 103b includes A call signal 104 including a common group code 102 is periodically transmitted in the short-range communication areas 105a and 105b where the weak radio waves can reach, centering on the mobile communication devices 103a and 103b.

  FIG. 2 is a diagram showing a configuration of a call signal according to Embodiment 1 of the present invention. The calling signal 104 includes a signal code 106 for an inquiry signal and a group code 102. The mobile communication device 103 can receive the calling signal 104 including the same group code 102 as the group code of the own station, but treats the calling signal including a group code other than the group code of the own station as an invalid signal.

  Further, when the mobile communication device 103a is within the short-range communication area 105b of the mobile communication device 103b, the mobile communication device 103b can receive the calling signal 104 including the common group code 102 transmitted by the mobile communication device 103b, but the short-range communication area 105b. When the mobile communication device 103b moves outside the mobile communication device 103b, the call signal 104 including the common group code 102 transmitted by the mobile communication device 103b cannot be received. Limited to the distance communication area 105b.

  The same applies to the mobile communication device 103b. The mobile communication device 103 monitors the reception status of the call signal 104 including the common group code 102 transmitted by the other mobile communication devices 103, and calls the mobile communication device 103b including the common group code 102. When the signal 104 cannot be received, a warning is issued because the common group code 102 is separated from the registered group.

  Short-range communication is performed with weaker power used for communication with a base station, and specifically, Bluetooth (registered trademark of SIG), ultrasonic sensor, infrared communication (Irda), or the like is used.

  In particular, Bluetooth is a wireless communication standard that does not require qualification, and the transmission distance is about 100 m (class 1) and about 25 m (class) by controlling the transmission power with radio waves in a band with a center frequency of 2.45 GHz. 2) or about 10 m (class 3), so that wireless communication can be performed with the portable communication device 103 within a range of about 100 m, about 25 m, or about 10 m. Further, unlike infrared communication, Bluetooth can perform communication without being obstructed by an obstacle or the like.

  FIG. 3 is a block diagram showing another configuration of the collective monitoring system according to Embodiment 1 of the present invention. The group monitoring system 101 in FIG. 3 is an example in which four mobile communication devices 103a, 103b, 103c, and 103d register a common group code 102 to form a group.

  If the mobile communication device 103a is in one of the short-range communication areas 105b, 105c, and 105d formed by the other mobile communication devices 103b, 103c, and 103d, the mobile communication device 103a is connected to the other mobile communication devices 103b, 103c. , 103d, the call signal 104 including the common group code 102 transmitted can be received.

  When the group becomes large, the mobile communication device 103a is considered to be in the group if it is in any one of the wide areas including the short-range communication areas 105b, 105c, and 105d of the mobile communication devices 103b, 103c, and 103d. The range that is said to spread.

  For example, when a child leaves school, the mobile communication devices 103a, 103b, 103c, and 103d that return home in the same direction register a common group code 102 to form a group, and from the mobile communication device 103a to another mobile communication device 103b. , 103c, and 103d, even if they are separated one by one, the mobile communication device 103a receives the call signal 104 including the common group code 102 if it is within the short-range communication area 105 of someone's mobile communication device 103 Suppose you are in a group because you can.

  When all other mobile communication devices 103b, 103c, 103d are separated from the mobile communication device 103a and the mobile communication device 103a moves out of the short-range communication areas 105b, 105c, 105d, the mobile communication device 103a The call signal 104 including the common group code 102 transmitted by the mobile communication devices 103b, 103c, and 103d cannot be received.

  The same applies to the mobile communication devices 103b, 103c, and 103d. The mobile communication device 103 monitors the reception status of the call signal 104 including the common group code 102 transmitted by the other mobile communication devices 103, and the common group code. When the call signal 104 including 102 cannot be received, a warning is issued that the common group code 102 has been separated from the registered group.

  FIG. 4 is a block diagram showing a configuration of the mobile communication device according to Embodiment 1 of the present invention. As shown in FIG. 4, the mobile communication device 103 includes a short-range communication unit 112, a collective monitoring unit 113, a key input unit 114, a display unit 115, a drive unit 116, a speaker 117, and a call timer 118. The reception timer 119 and the storage unit 120 are connected to the control unit 121 and provided.

  The short-range communication unit 112 performs direct wireless communication with another portable communication device 103 at a short distance via the antenna 111, and the call signal 104 including the registered common group code 102 is transmitted using a weak radio wave. A call signal 104 including the group code 102 is received from another mobile communication device 103 which has transmitted the area 105 and registered the common group code 102.

  The group monitoring unit 113 includes a registration processing unit 122, a transmission processing unit 123, and a reception processing unit 124. The group monitoring unit 113 registers a common group code 102 to form a group and includes a call signal 104 including the common group code 102. Collective monitoring processing is performed to receive the call signal 104 including the common group code 102 transmitted from the other portable communication device 103 and monitor the reception state.

  The storage unit 120 stores the telephone number 125 of the local station, the group code 102, the calling signal transmission cycle t1, the departure warning time t2 that is assumed to leave the group, and the like. For example, the leaving warning time t2 is set to a time obtained by multiplying the calling signal transmission cycle t1 by several times.

  The registration processing unit 122 stores a common group code 102 input from a group monitoring service screen, which will be described later, in the storage unit 120 as the group code 102 of its own station to form a group, and a transmission processing unit 123 and a reception processing unit 124 is started.

  The transmission processing unit 123 periodically transmits the calling signal 104 based on the common group code 102 stored in the storage unit 120 from the short-range communication unit 112.

  The reception processing unit 124 receives the call signal 104 including the common group code 102 transmitted from the other mobile communication device 103 by the short-range communication unit 112 and includes the common group code 102 for the departure warning time t2 or more. A warning is issued when a message cannot be received.

  FIG. 5 is a diagram showing an example of a group monitoring service screen according to Embodiment 1 of the present invention. As shown in FIG. 5, the group monitoring service screen 131 includes a group code input field 132, a registration button 133 and an end button 134, and a display field 135 for displaying a warning message.

  When a group code is entered in the group code input field 132 of the group monitoring service screen 131 and the registration button 133 is selected, the registration processing unit 122 is activated to form a group based on the input common code 102. The reception processing unit 124 is activated to transmit the calling signal 104 including the common group code 102, and receives the calling signal 104 including the common group code 102 transmitted from the other portable communication device 103 to monitor the reception state. When the group monitoring process is executed and the end button 134 is selected, the processes of the transmission processing unit 123 and the reception processing unit 124 are ended.

  An operation for performing group monitoring in the mobile communication device 103 of the group monitoring system 101 configured as described above will be described. FIG. 6 is a flowchart for explaining the operation of the collective monitoring unit according to the first embodiment of the present invention. As shown in FIG. 6, when the user displays the group monitoring service screen 131 on the display unit 115 by the key input unit 114 of the mobile communication device 103 (ST101), the group monitoring unit 113 is activated from the control unit 121 and registered. The unit 122 is activated.

  When the user inputs a common group code in the group code input field 132 (ST102) and selects the registration button 133 (ST103; YES), the storage unit 120 uses the input common group code as the group code 102 of the own station. (ST104) and the transmission processing unit 123 and the reception processing unit 124 are activated.

  The transmission processing unit 123 sets the transmission timer 118 at the calling signal transmission cycle t1 (ST105), and the reception processing unit 124 sets the reception timer 119 at the withdrawal warning time t2 (ST106).

  If the transmission timer 118 times out (ST107; YES), the transmission processing unit 123 transmits the call signal 104 including the common group code 102 from the short-range communication unit 112 (ST108), and transmits the call signal at the call signal transmission cycle t1. The timer 118 is reset (ST109).

  The reception processing unit 124 receives the call signal 104 including the common group code 102 by the short-range communication unit 112 before the reception timer 119 times out without selecting the end button 134 (ST110; NO). (ST111; YES) This time, since the call signal 104 including the common group code 102 transmitted by the other mobile communication device 103 can be received, it is assumed that the user is in the group in which the common group code 102 is registered. Then, the reception timer 119 is reset at the departure warning time t2, the processing of ST107 to ST111 is repeated, and the reception of the call signal 104 including the next common group code 102 is awaited.

  If the transmission timer 118 times out while repeating the processing from ST107 to ST111 (ST107; YES), transmission processing section 123 transmits call signal 104 using common group code 102 stored in storage section 120 (ST108). ), The call timer 118 is reset at the call signal transmission cycle t1 (ST109), and the call signal including the common group code 102 at the call signal transmission cycle t1 until the end button 134 is selected (ST110; NO). The process of transmitting 104 is repeated.

  If the user selects the end button 134 on the group monitoring service screen 131 (ST110; YES), the registration processing unit 122 ends the transmission processing unit 123 and the reception processing unit 124.

  In ST106, the reception processing unit 124 sets the reception timer 119 at the withdrawal warning time t2, and the end button 134 on the group monitoring service screen 131 is not selected (ST107, ST110; NO), and the common group code 102 is set. If the call signal 104 is not received (ST111; NO), the process returns to ST107 and until the reception timer 119 times out (ST112; YES), the group monitoring end input by the key input unit 114, or a common Waiting for the reception of the paging signal 104 including the group code 102.

  If the reception timer 119 times out (ST112; YES) before receiving the call signal 104 including the common group code 102 (ST111; NO) without the end button 134 being selected (ST110; NO), this time Since the call signal 104 including the common group code 102 transmitted by the other mobile communication device 103 could not be received even after the leaving warning time t2, the user was left in the display column 135 of the group monitoring service screen 131. Is displayed (ST113), the drive unit 116 is vibrated, an alarm sound is output from the speaker 117 (ST114), the process returns to ST106, the reception timer 119 is reset at the separation warning time t2, and the next Waiting for reception of the call signal 104 including the common group code 102 A repeat.

  In the flowchart explaining the operation of the group monitoring unit shown in FIG. 6, ST101 to ST104 and ST110 are processing steps of the registration processing unit 122, ST105 and ST107 to ST110 are processing steps of the calling processing unit 123, ST106 and ST110 to ST114 are processing steps of the reception processing unit 124.

  As described above in detail, according to the first embodiment of the present invention, the short-range communication unit 112 that performs direct wireless communication with another mobile communication device 103 at a short distance to the mobile communication device 103; The storage unit 120 that stores the input common group code 102 as the group code 102 of the own station, and the call signal 104 that includes the common group code 102 and receives the call signal 104 that includes the common group code 102 and includes a common group code 102 that is longer than the leaving warning time t2. And a reception processing unit 124 that issues a warning when the signal 104 cannot be received, so that the mobile communication device 103 can form a group in a simple manner and notify it without cost when leaving the group. It was.

  According to the first embodiment, the mobile communication device 103 includes the transmission processing unit 123 that transmits the calling signal 104 using the common group code 102 stored in the storage unit 120. The other mobile communication device 103 stored in the storage unit 120 as the group code 102 receives the call signal 104 including the common group code 102 and receives the call signal 104 including the common group code 102 for the withdrawal warning time t2 or more. If the reception processing unit 124 that issues a warning when it is not possible, the other mobile communication devices 103 that store the common group code 102 can also form a group in a simple manner without incurring costs when leaving the group. Can be informed.

  According to the first embodiment, since the mobile communication device 103 includes the registration processing unit 122 that registers a common group code, a user of the mobile communication device 103 can easily set a group for transmitting and receiving the common group code 102. Can be formed.

  According to the first embodiment, if a call signal 104 including a common group code 102 transmitted from any of the mobile communication devices 103 can be received, the mobile communication device 103 registers the common group code 102. If the number of mobile communication devices 103 that register a common group code 102 is increased, a large group can be formed and group monitoring can be performed over a wide range. .

  According to the first embodiment, since a group is formed by registering the common group code 102, the group can be freely formed for the convenience of the user. For example, if you want to eliminate a group, you do not have to register the common group code 102. If you register the group code of another group and register it, you can belong to another group. If a group code is registered, a new group can be formed.

  According to the first embodiment, there is no need to set an upper limit on the number of members of the group formed by registering the common group code 102.

  In the first embodiment, when the registration button 133 is selected on the group monitoring service screen 131, the transmission processing unit 123 and the reception processing unit 124 are activated from the registration processing unit 122, and the registration processing and the group monitoring processing are continued. However, when a new monitoring button or the like is provided on the group monitoring service screen 131 and the registration button 133 is selected on the group monitoring service screen 131, only the registration processing is performed, and the monitoring button is displayed on the group monitoring service screen 131. The registration process and the group monitoring process may be performed separately, such that the group monitoring process is performed when selected.

  In the first embodiment, when the registration button 133 is selected on the group monitoring service screen 131, the registration processing unit 122 performs registration processing and then activates both the transmission processing unit 123 and the reception processing unit 124. In the group monitoring service screen 131, a transmission button and a monitoring button are provided, and when the transmission button is selected, only the transmission processing unit 123 is activated and only the calling signal 104 including the common group code 102 is transmitted, When the monitor button is selected, only the reception processing unit 124 may be activated to receive only the call signal 104 including the common group code 102.

  By providing separate call buttons on the group monitoring service screen 131 and separately sending the call signal 104 including the common group code 102, the mobile communication device 103 that transmits the call signal 104 including the group code 102 is limited. Can limit the range that is considered to be in the group, making it easier to see who is away.

  According to the first embodiment, the registration unit 122 is provided in the group monitoring unit 113 and the group code input to the group code input field 132 of the group monitoring service screen 131 is stored as the group code 102 of the local station. Mobile communication device that performs a transmission / reception process of the call signal 104 using the group code 102 stored in the storage unit 120 but has a contract to form a group without providing the registration processing unit 122 in the group monitoring unit 113 The group monitoring process may be performed by distributing a common group code to 103 and storing it in the group code of the local station of the storage unit 120 in advance.

  According to the first embodiment, the group code input in the group code input field 132 of the group monitoring service screen 131 is directly stored in the storage unit 120 for transmission / reception processing, but there is a contract for forming a group. A group code is distributed in advance to a mobile communication device 103 and stored in the storage unit 120, and transmission / reception is performed after user authentication such as starting transmission / reception processing when the input group code matches the distributed group code. Processing may be performed.

  In the first embodiment, one group code is stored in the storage unit 120 of the mobile communication device 103. However, a plurality of group codes are stored in the storage unit 120, and call signals based on the plurality of group codes are sequentially transmitted. The group codes received from among the plurality of group codes may be checked in order while being transmitted to the group, and at the same time, belonging to the plurality of groups may be monitored at the same time.

(Embodiment 2)
In the second embodiment, in a group formed by mobile communication devices registered in the member list, short-range communication is performed in which a reference signal is periodically transmitted and a response signal is received based on the member list. When the response signal cannot be received, the mobile communication device issues a warning that it has left the group.

  FIG. 7 is a block diagram showing a configuration of a group monitoring system according to Embodiment 2 of the present invention. 7, the group monitoring system 201 includes a mobile communication device 202 and mobile communication devices 203a, 203b, 203c,... Registered in the member list 204 of the mobile communication device 202.

  The mobile communication device 202 uses the telephone numbers 205a, 205b, 205c,... Of the mobile communication devices 203a, 203b, 203c,... Registered in the member list 204, and the phone numbers 205a, 205b of the mobile communication devices 203a, 203b, 203c,. , 205c,... Are periodically transmitted in the short-range communication area 207 that can be reached by weak radio waves.

  FIG. 8 is a diagram showing a configuration of an inquiry signal according to Embodiment 2 of the present invention. As shown in FIG. 8, the inquiry signal 206 is composed of a signal code 106 of the inquiry signal, identification information 209 of the partner station, and identification information 210 of the own station, and the inquiry signals 206a, 206b, 206c,. The telephone numbers 205a, 205b, 205c,... Of the mobile communication devices 203a, 203b, 203c,... Registered in the member list 204 are set in the identification information 209 of the partner station, and the mobile communication device 202 is set in the identification information 210 of the local station. The phone number of your station is set.

  For example, when the mobile communication devices 203a, 203b, 203c,... Are in the short-range communication area 207 centered on the mobile communication device 202, the mobile communication devices 203a, 203b, 203c,. , 205b, 205c,... Are received and response signals 208a, 208b, 208c,... Are returned to the portable communication device 202, but moved out of the near field communication area 207. Mobile communication devices 203a, 203b, 203c,... Cannot receive inquiry signals 206a, 206b, 206c,... Including their own telephone numbers 205a, 205b, 205c,. Even if the communication device 202 transmits the inquiry signals 206a, 206b, 206c,. a, 203b, 203c, the response signal 208a from ..., 208b, 208c, does not receive a ....

  FIG. 9 is a diagram showing a configuration of a response signal according to Embodiment 2 of the present invention. As shown in FIG. 9, the response signal 208 includes a response signal signal code 211, a partner station identification information 212, and a local station identification information 213, and the response signals 208 a, 208 b, 208 c,. The telephone numbers 205a, 205b, 205c,... Of the mobile communication devices 203a, 203b, 203c,... Registered in the member list 204, which are the transmission destinations of the inquiry signal 206, are set in the identification information 212 of the partner station. In the information 213, the transmission source of the inquiry signal 206, that is, the telephone number 125 of the own station of the portable communication device 202 is set.

  The mobile communication device 202 includes telephone numbers 205a, 203b, 203c,... Of the mobile communication devices 203a, 203b, 203c,. , 205c,... Are sent to monitor the reception status of the response signals 208a, 208b, 208c,... And the inquiry signals 206a, including the telephone numbers 205a, 205b, 205c,. If the response signals 208a, 208b, 208c,... Of the mobile communication devices 203a, 203b, 203c,... Cannot be received even if 206b, 206c,. .

  FIG. 10 is a block diagram showing a configuration of the mobile communication apparatus according to Embodiment 2 of the present invention. 10, the same components as those in the block diagram showing the configuration of the mobile communication device according to Embodiment 1 of the present invention shown in FIG.

  As shown in FIG. 10, the mobile communication device 202 includes a short-range communication unit 112, a group monitoring unit 214, a key input unit 114, a display unit 115, a driving unit 116, a speaker 117, a timer 215, A storage unit 220 is connected to the control unit 221, and the group monitoring unit 214 includes a registration processing unit 216, a monitoring processing unit 217, and an inquiry signal generation unit 218.

  The short-range communication unit 112 performs direct wireless communication with the mobile communication device 203 at a short distance via the antenna 111 and transmits an inquiry signal 206 including the telephone number 205 of the mobile communication device 203 registered in the member list 204. The response signal 208 is received from the mobile communication device 203.

  In the storage unit 220, the telephone number 125 of the local station, the individual transmission period t3 in which the inquiry signal 206 is transmitted to the individual portable communication device 203 registered in the member list 204, and the inquiry signal in which the portable communication device 202 transmits the inquiry signal. The transmission period t4, the member list 204, the counter k, the response reception position l for storing the registered position of the member list 204 that has received the response signal 208, and the like are stored.

  The inquiry signal transmission period t4 is calculated according to the number of mobile communication devices 203 registered in the member list 204 so that the individual transmission period t3 is constant when performing collective monitoring.

  The member list 204 stores the telephone numbers 205a, 205b, 205c,... Of the mobile communication devices 203a, 203b, 203c,.

  The group monitoring unit 214 activates the registration processing unit 216 and the monitoring processing unit 217 according to a user input, forms a group, and executes group monitoring processing.

  The registration processing unit 216 registers the telephone number 205 of the mobile communication device 203 input on the group monitoring service screen, which will be described later, in the member list 204 of the storage unit 220 or the mobile communication device 203 registered from the member list 204. The process of deleting the telephone number 205 is performed.

  The monitoring processing unit 217 generates and transmits inquiry signals 206a, 206b, 206c,... According to the telephone numbers 205a, 205b, 205c,... Of the mobile communication devices 203a, 203b, 203c,. Monitors the reception status of response signals 208a, 208b, 208c,... Returned from the mobile communication devices 203a, 203b, 203c,..., And monitors all the mobile communication devices 203a, 203b, 203c,. Is transmitted when the response signals 208a, 208b, 208c,... Cannot be received from any portable communication device 203 registered in the member list 204, even though the inquiry signals 206a, 206b, 206c,.

  The inquiry signal generation unit 218 uses the telephone numbers 125 of the mobile communication device 202 and the phone numbers 205a, 205b, 205c,... Of the mobile communication devices 203a, 203b, 203c,. 206c,... Are generated.

  FIG. 11 is a diagram illustrating an example of a group monitoring service screen according to the second embodiment of the present invention. As shown in FIG. 11, the group monitoring service screen 241 displays a telephone number input field 242, a registration button 243, a release button 244, a monitoring button 245, an end button 246, and a telephone number of a registered member. A column 247 is provided.

  When a telephone number of a mobile communication device as a member is entered in the telephone number input field 242 of the group monitoring service screen 241 and the registration button 243 is selected, the registration processing unit 216 performs registration processing for registering the telephone number 205 in the member list 204. If the registered member telephone number is selected from the display field 247 of the group monitoring service screen 241 and entered in the telephone number input field 242, and the cancel button 244 is selected, the canceling process of deleting the telephone number 205 from the member list 204 is performed. When the end button 246 is selected, the registration processing unit 216 ends.

  When the monitor button 245 is selected, the monitoring processing unit 217 performs a group monitoring process of monitoring the response signal 208 transmitted from the mobile communication device 203 by sending an inquiry signal 206 to the telephone number 205 registered in the member list 204, When the end button 246 is selected, the monitoring processing unit 217 ends.

  An operation for performing group monitoring in the mobile communication device 202 of the group monitoring system 201 configured as described above will be described. 12 and 13 are flowcharts for explaining the operation of the group monitoring unit according to Embodiment 2 of the present invention. As shown in FIG. 12, when the user displays the group monitoring service screen 241 on the display unit 115 by the key input unit 114 of the mobile communication device 202 (ST201), the group monitoring unit 214 is activated from the control unit 221 and performs registration processing. The unit 216 is activated.

  When the user inputs the telephone number of the mobile communication device as a member in the telephone number input field 242 (ST202; NO, ST203; NO, ST204) and selects the registration button 243 (ST205; YES), the registration processing unit 216 The input telephone number is stored in the member list 204 of the storage unit 220 (ST206), and the process returns to ST201 to display the group monitoring service screen 241 in which the telephone number of the registered mobile communication device is added to the display field 247 (ST201). ).

  In ST204, when a registered telephone number is selected from the registered member display field 247 of the group monitoring service screen 241 and entered in the telephone number input field 242, and the cancel button 244 is selected (ST205; NO, ST207; YES), Group monitoring by deleting the telephone number 205 of the mobile communication device 203 input from the member list 204 of the storage unit 220 (ST208), returning to ST201, and removing the phone number 205 of the released mobile communication device 203 from the display field 247 The service screen 241 is displayed (ST201).

  In ST201, when the user selects the monitoring button 245 (ST202; NO, ST203; YES), if the member is registered in the member list 204 (ST209; YES), the group monitoring unit 214 changes the registration processing unit 216. When finished, the monitoring processor 217 is activated.

  In ST209, if no member is registered in member list 204 (ST209; NO), a message indicating that no member is registered is displayed in display field 247 (ST210), and the process returns to ST201. When the end button 246 is selected in ST201 (ST202; YES), the registration processing unit 216 is ended.

  The operation of the monitoring processing unit 217 will be described. As shown in FIG. 13, the monitoring processing unit 217 calculates the inquiry signal transmission cycle t4 by (individual transmission cycle t3) / (number of members registered in the member list 204) (ST211).

  The counter k is set to “1” and the response reception position 1 is set to “0” (ST212). The inquiry signal generator 218 uses the telephone number 205 of the mobile communication device 203 registered in the kth member list 204 to obtain an inquiry signal. 206 is generated (ST213), transmitted (ST214), and the timer 215 is set at the transmission period t4 of the inquiry signal (ST215).

  After setting the timer 215 in ST215, the end button 246 is not selected (ST216; NO), and before the timer 215 times out, the response signal 208 from the kth registered mobile communication device 203 in the member list 204 is received. Is received (ST217; YES), since the near field communication with the k-th registered mobile communication device 203 in the member list 204 has been performed, the counter k is saved and stored in the response reception position l ( ST218).

  If the timer 215 has not timed out (ST219; NO), the process returns to ST216, repeats ST216 to ST219, and waits for the timer 215 to time out (ST216; NO, ST217; YES, ST218, ST219; NO).

  When the timer 215 times out in ST219 (ST219; YES), if the counter k does not indicate the end of the member list 204 (ST220; NO), “1” is added to the counter k (ST221), and the counter k And the response reception position l are compared.

  The process of transmitting the inquiry signal 206 including the telephone number 205 to the mobile communication device 203 registered in the member list 204 by comparing the counter k with the response reception position l is performed without receiving the response signal 206. If not (ST223; NO), the process returns to ST213, and the process of generating and transmitting the inquiry signal 206 from the telephone number 205 of the mobile communication device 203 registered next to the member list 204 is repeated.

  In ST215, after the timer 215 is set in the inquiry signal transmission cycle t4, if the user selects the end button 246 before the timer 215 times out (ST216; YES), the monitoring processing unit 219 is ended.

  In ST215, after setting the timer 215 at the inquiry signal transmission cycle t4, the end button 246 is not selected (ST216; NO), and the response signal 208 is received from the kth registered mobile communication device 203 in the member list 204. Is not received (ST217; NO), until the timer 215 times out (ST219; NO), the process returns to ST216 and waits for reception of the response signal 208 from the mobile communication device 203 (ST216; NO, ST217; NO, ST219; NO).

  In ST219, when the timer 215 times out (ST219; YES), if the counter k indicates the end of the member list 204 (ST220; YES), the counter k is set to “1” (ST221), and the counter k And the response reception position l are compared.

  The process of transmitting the inquiry signal 206 including the telephone number 205 to the mobile communication device 203 registered in the member list 204 by comparing the counter k with the response reception position l is performed without receiving the response signal 206. If not (ST223; NO), the process returns to ST213, and the process of generating and transmitting the inquiry signal 206 from the telephone number 205 of the mobile communication device 203 registered at the top of the member list 204 is repeated.

  In ST223, the process of transmitting the inquiry signal 206 including the telephone number 205 to the mobile communication device 203 registered in the member list 204 by comparing the counter k with the response reception position l is performed without receiving the response signal 206. If it is around (ST223; YES), a warning message notifying that the mobile communication device 202 has left the group is displayed in the display field 247 (ST224), and the driving unit 116 is vibrated to output an alarm sound from the speaker 117. (ST225), “0” is set in the response reception position 1 (ST226), and the process returns to ST213 to generate the inquiry signal 206 from the telephone number 205 of the mobile communication device 203 newly registered in the member list 204. Repeat the transmission process.

  FIG. 14 is a block diagram showing another configuration of the collective monitoring system according to Embodiment 2 of the present invention. In the group monitoring system 201 of FIG. 14, the mobile communication devices 203a, 203b, 203c,... Registered in the member list 204 of the mobile communication device 202 are also provided with a group monitoring unit 214, and the mobile communication devices 203a, 203b, 203c,. Are provided with member lists 204a, 204b, 204c,... Registered as members of other mobile communication devices 203a, 203b, 203c,... Including the mobile communication device 202, and the mobile communication device 202 and the mobile communication devices 203a, 203b,. 203 includes telephone numbers 205, 205a, 205b, 205c,... Registered in the member lists 204, 204a, 204b, 204c,... Within the short-range communication areas 207, 207a, 207b, 207c,. Inquiry signals 206, 206a, 206b, 206c,... Transmission by weak radio waves.

  The member lists 204, 204a, 204b, 204c,... Are obtained by registering different members freely by the users of the mobile communication devices 202, 203a, 203b, 203c,. In the collective monitoring system 201 shown in FIG. 13, a wide area including the short-range communication areas 207, 207a, 207b, 207c,.

  As described above in detail, according to Embodiment 2 of the present invention, mobile communication device 202 is connected to short-range communication unit 112 that performs direct wireless communication with mobile communication device 203 at a short distance, and mobile communication. Even though the storage unit 220 that stores the member list 204 in which the telephone numbers of the devices 203 are registered and the inquiry signal 206 is transmitted to all the mobile communication devices 203 registered in the member list 204, they are registered in the member list 204. And the monitoring processing unit 217 that issues a warning when the response signals 208a, 208b, 208c,... Cannot be received from any portable communication device 203, the portable communication device 202 forms a group by a simple method. When I was away from it, I was able to inform you of it without incurring costs.

  According to the second embodiment, since the registration processing unit 216 that inputs the telephone number 205 of the mobile communication device 203 and registers it in the member list 204 of the storage unit 221 is provided, the user of the mobile communication device 202 registers as a member. A group based on the member list 204 can be easily formed by freely designating the mobile communication device 203 to be selected.

  According to the second embodiment, the mobile communication device 202 must include the collective monitoring unit 214, but the mobile communication device 203 registered in the member list 204 receives the inquiry signal 206 including its own telephone number. Thus, it is sufficient that the response signal 208 can be returned, so that a commercially available portable communication device with a near field communication function can be registered to be a member.

  In the second embodiment, an inquiry signal 206 including the telephone number 205 is transmitted to the mobile communication device 203 registered in the member list 204 in ST223 of the flowchart explaining the operation of the collective monitoring unit shown in FIG. A warning is issued if the process makes one round without receiving the response signal 206, but the timing for issuing the warning is not limited to one round. Any number of laps may be used as long as it is one or more laps.

  In the second embodiment, the group monitoring unit 214 of the mobile communication device 202 includes the registration processing unit 216. However, the registration processing unit 216 is not included, and the member list 204 is stored in the storage unit 220 in advance and fixed. Group monitoring may be performed by the selected members.

  In the second embodiment, the identification information 209 of the counterpart station in the inquiry signal 206, the identification information 210 of the local station, the identification information 212 of the counterpart station in the response signal 208, and the identification information 213 of the local station are included in the mobile communication device 202 and the mobile station. Although the telephone number 205 of the communication apparatus 203 is set, what is set is not limited to the telephone number 205. A terminal ID or the like may be set as long as the mobile communication device can be identified.

(Embodiment 3)
In the third embodiment, the collective monitoring system 101 of the first embodiment is connected to a monitoring center via a base station and a communication network, and a contact registered in advance in the monitoring center indicates that the mobile communication device has left the group. To report.

  FIG. 15 is a block diagram showing a configuration of a group monitoring system according to Embodiment 3 of the present invention. 15, a group monitoring system 301 is connected via a base station 303 and a communication network 304 to a plurality of mobile communication devices 302a, 302b, 302c,... That form a group by registering a common group code. And a monitoring center 305.

  When the mobile communication device 302 leaves the group, the mobile communication device 302 transmits data indicating “isolation” to the monitoring center 305 via the base station 303 and the communication network 304. When the monitoring center 305 receives data indicating “isolation”, the monitoring center 305 reports to the contact points 306a, 306b, 306c,.

  FIG. 16 is a block diagram showing a configuration of the mobile communication apparatus according to Embodiment 3 of the present invention. In FIG. 16, the same components as those in the block diagram showing the configuration of the mobile communication apparatus according to Embodiment 1 of the present invention shown in FIG.

  As shown in FIG. 16, the mobile communication device 302 includes a base station communication unit 312 that performs radio communication with the base station 303 via the antenna 111 in addition to the mobile communication device 103 of the first embodiment shown in FIG. 4. A position information search unit 315 that receives a GPS signal from a satellite via the antenna 111, searches for a current position, and acquires position information; The collective monitoring unit 313 is provided with a reception processing unit 324 to which processing for transmitting data indicating “to the monitoring center 305 is added, and stores the address of the monitoring center 305 on the communication network 304 in the monitoring center address 323 of the storage unit 320.

  FIG. 17 is a block diagram showing the configuration of the monitoring center according to Embodiment 3 of the present invention. As shown in FIG. 17, the monitoring center 305 includes a communication processing unit 331, a disconnection communication unit 332, and a storage unit 340 connected to the control unit 341.

  The communication processing unit 331 communicates with the mobile communication devices 302a, 302b, 302c,... And the contacts 306a, 306b, 306c,.

  The detachment contact unit 332 receives data indicating “isolation” from the mobile communication devices 302a, 302b, 302c,... And contacts 306a of the mobile communication devices 302a, 302b, 302c,. 306b, 306c,... And the location information of the mobile communication devices 302a, 302b, 302c,.

  The storage unit 340 stores a contact list 334 in which the contacts 306a, 306b, 306c, ... are registered. In the contact list 334, the contacts 306a, 306b, 306c,... That the user requests to be notified when leaving the group are stored in advance for each of the telephone numbers 333a, 333b, 333c,. The registered contacts 306a, 306b, 306c,... Are specifically addresses on the communication network 304, telephone numbers, or mail addresses.

  An operation of executing group monitoring in the group monitoring system 301 configured as described above will be described. FIG. 18 is a flowchart for explaining the operation of the reception monitoring unit of the mobile communication device according to Embodiment 3 of the present invention. FIG. 18 is a flow diagram in which processing related to the reception processing unit 324 is extracted from the flow diagram for explaining the operation of the collective monitoring unit according to the first embodiment of the present invention illustrated in FIG. 6, and the implementation of the present invention illustrated in FIG. The same code | symbol is attached | subjected about the same process step as the flowchart explaining operation | movement of the group monitoring part which concerns on the form 1 of.

  As shown in FIG. 18, the reception processing unit 324 of the mobile communication device 302 displays a warning message informing that it has left the group in ST113 (ST113), vibrates the drive unit 116, and outputs an alarm sound from the speaker 117. (ST114), the position information search unit 315 obtains the position information of the mobile communication device 302 (ST301), data indicating “isolation”, the position information of the mobile communication device 302, and the telephone number 125 of the mobile communication device 302. Is transmitted from the base station communication unit 312 to the monitoring center 305 via the base station 303 and the communication network 304 according to the monitoring center address 323 (ST302), and the process returns to ST106.

  FIG. 19 is a flowchart for explaining the operation of the leaving communication unit of the monitoring center according to Embodiment 3 of the present invention. In FIG. 19, when the departure contact unit 332 of the monitoring center 305 receives data indicating “isolation” from the mobile communication device 302 via the communication processing unit 331 (ST401; YES), the contact list 334 is displayed according to the received telephone number. If the search is made (ST402) and the contact 306 is registered (ST403; YES), the mobile communication device 302 is separated from the group from the communication processing unit 331 via the communication network 304 and the mobile communication device. The position information of 302 is transmitted (ST404), the process returns to ST401, and the reception of the next data indicating “isolation” is awaited (ST401; NO).

  As described above in detail, according to the third embodiment of the present invention, the group monitoring unit 313 of the mobile communication device 302 receives the data indicating “isolation” when it leaves the group, to the monitoring center 305. A processing unit 324 is provided, and the monitoring center 305 receives data indicating “isolation” from the mobile communication devices 302a, 302b, 302c,... And is registered in the contact list 334. Since each contact address 306a, 306b, 306c,... Is provided with a leaving contact unit 332 that transmits that it has left the group, the mobile communication devices 302a, 302b, 302c,. When the mobile communication devices 302a, 302b, 302c,... 306c, was able to inform ... to.

  In addition, since the mobile communication device 302 includes a position information search unit 315 that receives a GPS signal from the satellite via the antenna 111 and searches the current position to acquire the position information, the mobile communication devices 302a, 302b, and 302c are provided. ,... Register a common group code to form a group and move away from the group, and position information of the portable communication devices 302a, 302b, 302c,. , 306b, 306c,.

(Embodiment 4)
In the fourth embodiment, the collective monitoring system 201 of the second embodiment is connected to a monitoring center via a base station and a communication network, and a contact registered in advance in the monitoring center indicates that the mobile communication device has left the group. To report.

  FIG. 20 is a block diagram showing a configuration of a collective monitoring system according to Embodiment 4 of the present invention. 20, the group monitoring system 401 includes a plurality of mobile communication devices 402a, 402b, 402c,... That form a group by registering other mobile communication devices in the member list, and a base station 303 and a communication network 304. And a monitoring center 305 connected to each other.

  When the mobile communication device 402 leaves the group, the mobile communication device 402 transmits data indicating “isolation” to the monitoring center 305 via the base station 303 and the communication network 304. When the monitoring center 305 receives the data indicating “isolation”, the monitoring center 305 reports to the previously registered contacts 406a, 406b, 406c,.

  FIG. 21 is a block diagram showing a configuration of a mobile communication device according to Embodiment 4 of the present invention. 21, a block diagram showing the configuration of the mobile communication device according to Embodiment 2 of the present invention shown in FIG. 10, and a block diagram showing the configuration of the mobile communication device according to Embodiment 3 of the present invention shown in FIG. The same components are denoted by the same reference numerals.

  As shown in FIG. 21, in addition to the mobile communication device 202, the mobile communication device 402 includes a base station communication unit 312 that performs wireless communication with the base station 303 via the antenna 111, and a GPS signal from the satellite via the antenna 111. And a position information search unit 315 for searching for the current position and acquiring the position information. When the monitor processing unit 217 of the second embodiment leaves the group, data indicating “isolation” is displayed in the monitoring center 305. The collective monitoring unit 414 includes the monitoring processing unit 417 to which the transmission process is added, and stores the address of the monitoring center 305 on the communication network 304 in the monitoring center address 323 of the storage unit 420.

  The configuration of the monitoring center 305 according to the fourth embodiment is the same as the block diagram showing the configuration of the monitoring center according to the third embodiment shown in FIG. 17, and the operation of the monitoring center 305 is also the implementation of the present invention shown in FIG. It is the same as the flowchart explaining operation | movement of the leaving contact part of the monitoring center which concerns on the form 3. FIG.

  The monitoring processing unit 417 of the mobile communication device 402 in the group monitoring system 401 configured as described above will be described. FIG. 22 is a flowchart for explaining the operation of the monitoring processing unit of the mobile communication device according to Embodiment 4 of the present invention. FIG. 22 is a flow diagram in which processing related to the monitoring processing unit 417 is extracted from the flow diagram for explaining the operation of the group monitoring unit according to the second embodiment of the present invention shown in FIG. 12 and FIG. The same processing steps as those in the flowchart for explaining the operation of the group monitoring unit according to the second embodiment of the invention are denoted by the same reference numerals.

  As shown in FIG. 22, the monitoring processing unit 417 of the mobile communication device 402 displays a warning message informing that it has left the group in ST224 (ST224), and vibrates the driving unit 116 to output an alarm sound from the speaker 117. (ST225), the location information search unit 315 obtains location information of the mobile communication device 402 (ST401), data indicating "isolation", location information of the mobile communication device 402, and the telephone number of the mobile communication device 402 125 is transmitted from the base station communication unit 312 of the mobile communication device 402 to the monitoring center 305 via the base station 303 and the communication network 304 according to the monitoring center address 323 (ST402), and “0” is set in the response reception position l. (ST226), it returns to ST213.

  As described above in detail, according to the fourth embodiment of the present invention, monitoring that transmits data indicating “isolation” to the monitoring center 305 to the group monitoring unit 414 of the mobile communication device 402 when leaving the group. A mobile communication device 402a, 402b, 402c,... That includes a processing unit 417 and receives data indicating “isolation” from the mobile communication devices 402a, 402b, 402c,. Since each of the contact points 406a, 406b, 406c,... Has a departure contact unit 332 that transmits that it has left the group, the mobile communication devices 402a, 402b, 402c,. If the mobile communication devices 402a, 402b, 402c,... 06a, 406b, was able to inform 406c, ... in.

  In addition, since the mobile communication device 402 includes a position information search unit 315 that receives a GPS signal from the satellite via the antenna 111 and searches the current position to acquire the position information, the mobile communication devices 402a, 402b, 402c, ..., when other mobile communication devices are registered in the member list 204 to form a group and leave the group, the location information of the mobile communication devices 402a, 402b, 402c,... Is stored in the mobile communication devices 402a, 402b, 402c,. Can be notified to the contacts 406a, 406b, 406c,.

  In the fourth embodiment, the group monitoring unit 414 of the mobile communication device 402 includes the registration processing unit 216, and the mobile communication device 402 registers other mobile communication devices in the member list 204 to form a group. The monitoring center 305 includes a registration processing unit, and a registration processing unit provided in the monitoring center 305 via the base station 303 and the communication network 304 registers other mobile communication devices in the member list to form a group and monitor The member list registered in the center 305 may be distributed to the mobile communication device 402 via the communication network 304 and the base station 303.

  The portable communication device and the collective monitoring system according to the present invention relate to a portable communication device and a collective monitoring system having a short-range communication function for performing direct wireless communication with a portable communication device at a short distance, and in particular, the short-range communication function. The present invention relates to a portable communication device and a collective monitoring system that monitor withdrawal from a collective, and has an effect that a collective can be formed by a simple method, and it can be informed without cost when leaving the collective, It is effective in the crime prevention service industry that supports the safety when people and things act as a group.

The block diagram which shows the structure of the group monitoring system which concerns on Embodiment 1 of this invention. The figure which shows the structure of the calling signal which concerns on Embodiment 1 of this invention. The block diagram which shows another structure of the group monitoring system which concerns on Embodiment 1 of this invention. 1 is a block diagram showing a configuration of a mobile communication device according to Embodiment 1 of the present invention. The figure which shows the example of the group monitoring service screen which concerns on Embodiment 1 of this invention. The flowchart explaining operation | movement of the group monitoring part which concerns on Embodiment 1 of this invention. The block diagram which shows the structure of the group monitoring system which concerns on Embodiment 2 of this invention. The figure which shows the structure of the inquiry signal which concerns on Embodiment 2 of this invention. The figure which shows the structure of the response signal which concerns on Embodiment 2 of this invention. The block diagram which shows the structure of the portable communication apparatus which concerns on Embodiment 2 of this invention. The figure which shows the example of the group monitoring service screen which concerns on Embodiment 2 of this invention. The flowchart explaining operation | movement of the group monitoring part which concerns on Embodiment 2 of this invention. The flowchart explaining operation | movement of the group monitoring part which concerns on Embodiment 2 of this invention. The block diagram which shows another structure of the group monitoring system which concerns on Embodiment 2 of this invention. The block diagram which shows the structure of the group monitoring system which concerns on Embodiment 3 of this invention. The block diagram which shows the structure of the portable communication apparatus which concerns on Embodiment 3 of this invention. The block diagram which shows the structure of the monitoring center which concerns on Embodiment 3 of this invention. FIG. 9 is a flowchart for explaining the operation of the reception monitoring unit of the mobile communication device according to the third embodiment of the present invention. The flowchart explaining operation | movement of the leaving | separation communication part of the monitoring center which concerns on Embodiment 3 of this invention. The block diagram which shows the structure of the group monitoring system which concerns on Embodiment 4 of this invention. Block diagram showing a configuration of a mobile communication device according to a fourth embodiment of the present invention. FIG. 9 is a flowchart for explaining the operation of the monitoring processing unit of the mobile communication device according to the fourth embodiment of the present invention.

Explanation of symbols

101, 201, 301, 401 Collective monitoring system 103, 202, 203, 302, 402 Portable communication device 102 Group code 104 Call signal 105, 207 Short-range communication area 112 Short-range communication unit 113, 214 Collective monitoring unit 118 Transmission timer 119 Reception timer 122, 216 Registration processing unit 123 Transmission processing unit 124, 324 Reception processing unit 204 Member list 205, 333 Telephone number 206 Inquiry signal 208 Response signal 215 Timer 217, 417 Monitor processing unit 218 Inquiry signal generation unit 303 Base station 304 Communication Network 305 Monitoring center 306, 406 Contact address 312 Base station communication unit 315 Location information search unit 323 Monitoring center address 334 Contact list

Claims (8)

Short-range communication means for performing direct wireless communication with a mobile communication device at a short distance;
Storage means for storing group information for identifying a group formed by a plurality of portable communication devices;
Monitoring means for monitoring that communication by the short-range communication means and other portable communication devices that form the same group by the group information;
If the monitoring means cannot communicate with another portable communication device that forms the same group and the short-range communication means, an informing means for notifying that the group has left,
A portable communication device comprising:   The portable communication apparatus according to claim 1, further comprising a registration unit that stores the group information in the storage unit.   The group information is a common group code within the same group, and the short-range communication means receives a call signal including the common group code transmitted by another mobile communication device forming the same group, The monitoring means periodically monitors the reception of the call signal including the common group code by the short-range communication means, and when the call signal including the common group code cannot be received for a predetermined time or more, the notification means The mobile communication device according to claim 1 or 2, wherein the mobile communication device notifies that it has left the group.   4. The portable communication device according to claim 3, wherein the short-range communication unit includes a transmission unit that periodically transmits a calling signal including the common group code stored in the storage unit.   The group information is a member list in which other mobile communication devices forming the same group are stored by device identification information, and the short-range communication means receives an inquiry signal including the device identification information stored in the member list. The monitoring means monitors the reception of the response signal for the inquiry signal periodically transmitted by the short-range communication means and is stored in the member list. In spite of having transmitted the inquiry signal to the portable communication device indicated by all the device identification information, the response signal of the portable communication device indicated by any of the device identification information stored in the member list could not be received, The mobile communication device according to claim 1 or 2, wherein the notification means notifies that the user has left the group. A collective monitoring system in which a plurality of portable communication devices are connected to a monitoring center via a base station and a communication network,
The portable communication device is
Base station communication means for communicating with the monitoring center via the communication network and base station;
Short-range communication means for performing direct wireless communication with a mobile communication device at a short distance;
Storage means for storing group information for identifying a group formed by the plurality of portable communication devices;
Monitoring means for monitoring that communication by the short-range communication means and other portable communication devices that form the same group by the group information;
Informing means for transmitting data indicating that the base station communication means is isolated to the monitoring center when the monitoring means cannot communicate with other portable communication devices forming the same group by the short-range communication means; ,
With
The monitoring center is
Communication means for communicating with the mobile communication device via the base station and a communication network;
Storage means for storing contact information of the portable communication device;
When the data indicating the isolation is received from the portable communication device via the communication means, the leaving contact means for transmitting that the user has left the group to the contact information of the portable communication device stored in the storage means When,
A collective monitoring system comprising:   The group monitoring system according to claim 6, wherein the mobile communication device includes a registration unit that stores the group information in the storage unit. The portable communication device includes position information acquisition means for acquiring geographical position information of the own device,
The notification means is acquired by the position information acquisition means and the position information acquisition means when the monitoring means cannot communicate with other portable communication devices forming the same group by the short-range communication means. The group monitoring according to claim 6 or 7, wherein the position information is transmitted to the monitoring center, and the leaving contact means of the monitoring center transmits the received position information to the contact address. system.

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