JP2009237870A - Guardian management system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent missing child/leaving of a person to be protected without complicating configurations related to communication. <P>SOLUTION: A guardian management system 1 is provided with: a mobile station tag T1 movable in a prescribed mobile region with a guardian P1; mobile station tags T2 and T3 movable with persons P2 and P3 to be protected; and fixed station readers R1 to R4 equipped with a reader antenna 12. The location of the mobile station tag T is detected on the basis of radio signals transmitted from the mobile station tags T1 to T3, and received by the fixed station readers R1 to R4. Distance between the mobile station tag T1 and the mobile station tags T2 and T3 are detected on the basis of the location detection result. Whether or not the detected distance is equal to more than prescribed warning distances is decided. When the decision is satisfied, a corresponding warning instruction signal is generated and output. The mobile station tag T1 is provided with a display part DP for displaying corresponding warning, and for displaying the location of the mobile station tag T on the map according to the warning instruction signal. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a guardian management system for a guardian to manage a guardian such as a child, an elderly person, or a sick person.

For example, as a position detection system for a parent (guardian) to search for a lost child (protected person), for example, the one described in Patent Document 1 is known. In this prior art, the position of a guardian and the position of a guardian are detected using a global positioning system (GPS). Then, based on the detection result, it is calculated how far away and in what direction the guardian who is the searcher is, and displayed on the display means to notify the guardian. .
Japanese Patent Laid-Open No. 10-104331

  In the above prior art, first, the positioning means provided at the guardian-side receiving station and the positioning means provided at the guardian-side receiving station respectively receive information from GPS satellites and calculate their positions. (First positioning means and second positioning means). After that, these two positioning means must further transmit their own position information calculated by themselves to a server or the like (relative position calculation means), and the server needs to obtain the distance between the two receiving stations. That is, the receiving station requires a configuration corresponding to two types of communication, that is, communication with the GPS satellite and communication with the server side, so that the configuration related to communication has two systems, which is complicated. There was a problem.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a guardian management system that can prevent a guardian from getting lost or withdrawn with a single system without complicating the configuration related to communication.

  In order to achieve the above object, the first invention includes a first antenna means for transmitting and receiving information, and a first mobile station capable of moving in a predetermined movable area together with a guardian, and the first mobile station in advance. A storage unit for storing information and a second antenna means for transmitting and receiving information; and at least one second mobile station capable of moving in a predetermined movable area together with the protected person protected by the guardian; A third station means for transmitting and receiving information to and from the first mobile station and the second mobile station by wireless communication, and a base station fixedly arranged at a known position, wherein the guardian A guardian management system for managing a person to be protected, wherein the third antenna means of the base station is transmitted from the first antenna means and the second antenna means of the first mobile station and the second mobile station. Received at Position detecting means for detecting the positions of the first mobile station and the second mobile station based on a radio signal, and between the first mobile station and the second mobile station based on a detection result of the position detecting means. A distance detection means for detecting the distance of the distance, a determination means for determining whether the distance detected by the distance detection means is equal to or greater than a predetermined alarm distance, and a case where the determination of the determination means is satisfied Alarm generating means for generating and outputting an alarm instruction signal to be transmitted, wherein the first mobile station transmits from the third antenna means of the base station in response to the alarm instruction signal output from the alarm generating means Based on the detection result of the position detecting means and the map information included in the radio signal received by the first antenna means, the corresponding alarm display is performed and the positions of the first mobile station and the second mobile station are indicated. On the map Characterized in that it comprises display means for displaying Te.

  The first invention of this application is directed to a group consisting of a guardian and a guardian, and the first mobile station moves with the guardian and the second mobile station moves with the guardian. The positions of the first mobile station and the second mobile station are both detected by the position detection means, and the distance between the first mobile station and the second mobile station is detected by the distance detection means. Here, since the distance between the second mobile station and the first mobile station increases when the person to be protected moves far away from the guardian, the distance detected by the distance detection means increases. When this distance is equal to or greater than the predetermined alarm distance, the determination by the determination unit is satisfied, and the alarm generation unit outputs an alarm instruction signal correspondingly. As a result, a corresponding alarm is displayed on the display means provided on the first mobile station on the guardian side, and the positions of the first mobile station and the second mobile station are also displayed on the map.

  As described above, when the distance between the person to be protected and the guardian increases, a warning is automatically displayed on the first mobile station, and the guardian's attention can be drawn. Accordingly, it is possible to effectively prevent lost children with parents and children, prevent members from leaving the group, and the like. In addition, when a child gets lost or a member leaves the group, the guardian can immediately recognize that by means of a warning display, so it is possible to take prompt measures such as searching for the guardian immediately. . Further, the guardian can clearly check the position of the guardian on the map. Furthermore, it is possible for the guardian to infer on the map the distance, access route, etc. from his / her position to the position of the guardian.

  At this time, there is also an effect that the configuration related to communication can be simplified as compared with the GPS method. That is, considering the case where the GPS system is applied, the receiving station on the guardian side or the receiving station on the guardian side receives the information from the GPS satellite and calculates its own position. Therefore, when the same display as described above is to be performed, each of the two receiving stations further transmits its own position information calculated by itself to a server or the like, and the server determines the distance between the two receiving stations. There is a need. That is, the receiving station needs to have a configuration corresponding to two types of communication, that is, communication with the GPS satellite and communication with the server side. In contrast, in the first invention of the present application, the first and second mobile stations need only be configured to support communication with the base station side. Therefore, the configuration related to communication can be simplified.

  According to a second invention, in the first invention, there is provided registration means for registering a pair relationship between the second mobile station and the first mobile station when the second mobile station is attached to the first mobile station. And

  As a result, the first mobile station and the second mobile station can be reliably associated with each other when they are not used.

  According to a third invention, there is provided alarm distance setting means for variably setting the alarm distance according to an input signal in the second invention, and the determination means is configured such that the distance detected by the distance detection means is the alarm distance. It is characterized by determining whether it is more than the said alarm distance set by the distance setting means.

  Thereby, the setting of the distance for generating an alarm can be changed according to the place of action (the position of the person to be protected), the degree of congestion, the attribute of the person to be protected, and various other uses. As a result, appropriate settings can be made according to various usage modes and situations, and convenience is further improved.

  In a fourth aspect based on the third aspect, the warning distance setting means variably changes the warning distance according to position information of the second mobile station detected by the position detection means as the input signal. It is characterized by setting.

  This makes it appropriate automatically depending on the environment where the guardian is located (whether it is a safe place to keep your eyes open, a dangerous place if you keep your eyes open, or a place where you are likely to get lost). It is possible to switch to a different alarm distance. As a result, convenience is further improved.

  In a fifth aspect based on the fourth aspect, the warning distance setting means sets the warning distance short when the position of the second mobile station is within a predetermined area. If the position of the two mobile stations is outside a predetermined area, the alarm distance is set longer.

  By setting a certain area, such as a place dangerous to the guardian's eyes or a place where the guardian is likely to get lost, automatically when the guardian exists in such an area. Set the alarm distance short. As a result, an alarm is displayed earlier than usual in the first mobile station, so that the guardian's eyes can easily reach the guardian and the safety is improved.

  A sixth invention is the storage device of the second mobile station according to the third invention, based on a radio signal transmitted from the second antenna means of the second mobile station and received by the third antenna means of the base station. Stored in the attribute information acquisition means for acquiring the attribute information of the protected person corresponding to the second mobile station, wherein the alarm distance setting means is the attribute information acquisition means as the input signal The alarm distance is variably set according to the acquired attribute information of the protected person.

  This makes it possible to automatically switch to an appropriate alarm distance according to the attributes of the guardian (whether it is safe enough to keep an eye on it, a dangerous age if you keep an eye on it, an elderly person with weak feet, etc.) It becomes. As a result, convenience is further improved.

  In a seventh aspect based on the third aspect, the first mobile station is provided with operation means for allowing the guardian to input a predetermined setting, and is transmitted from the first antenna means of the first mobile station. Based on a radio signal received by the third antenna unit of the base station, an operation information acquisition unit is provided for acquiring operation information corresponding to the operation of the guardian with respect to the operation unit of the first mobile station, and the alarm distance setting The means is characterized in that the alarm distance is variably set according to the operation information acquired by the operation information acquisition means as the input signal.

  Thereby, the alarm distance is set based on the operation of the guardian via the operation means of the first mobile station. Therefore, the environment of the position where the guardian and the guardian are present (whether it is a safe place to keep your eyes open, a dangerous place to keep your eyes open, or a place where you can easily get lost), or By looking at the attributes of the person (such as whether it is a safe age to keep an eye on it, a dangerous age if you take your eyes off, or an elderly person with weak feet), etc. An appropriate warning distance that reflects the intention can be set. As a result, convenience is further improved.

  In an eighth aspect based on the seventh aspect, the operation information acquisition means acquires distance value information input by the guardian from the operation means of the first mobile station as the operation information, and the alarm distance setting means The alarm distance is set in correspondence with the distance value information acquired by the operation information acquisition means.

  Thereby, the alarm distance can be set directly to the value itself inputted by the guardian. Therefore, the value of the alarm distance considered by the guardian can be directly and reliably reflected.

  A ninth invention includes a correlation storage means for storing a correlation between the contents of the operation information and a value of an alarm distance to be set corresponding to the content of the operation information in the seventh invention, and the alarm distance setting means includes: The warning distance according to the correlation stored in the correlation storage unit is set based on the operation information acquired by the operation information acquisition unit.

  Thereby, when a guardian inputs predetermined operation information, an alarm distance corresponding to the operation information is acquired based on the correlation, and an appropriate alarm distance is automatically set.

  In a tenth aspect based on the ninth aspect, the operation information acquisition means acquires attribute information of the guardian input by the guardian by the operation means of the first mobile station as the operation information, and the alarm The distance setting unit sets the warning distance according to the correlation stored in the correlation storage unit based on the attribute information acquired by the operation information acquisition unit.

  This allows parents to enter attribute information of the guardian, such as the age of “old man”, “kindergarten”, “elementary school student”, the sex of “male”, “female”, and the health status of “sick” and “healthy body”. Then, an alarm distance corresponding to the attribute information is acquired based on the correlation, and an appropriate alarm distance is automatically set. The guardian can optimize the alarm distance only by inputting what attribute the guardian has, and does not need to manually set the alarm distance value. Therefore, the operation burden on the guardian can be reduced and the convenience can be improved.

  In an eleventh aspect based on the ninth aspect, the operation information acquisition means acquires, as the operation information, mode selection information input by the guardian from the operation means of the first mobile station, and the alarm distance setting means. Is configured to set the warning distance according to the correlation stored in the correlation storage unit based on the mode selection information acquired by the operation information acquisition unit.

  As a result, when a guardian selects and inputs a mode such as “long mode”, “short mode”, “normal mode”, “careful mode”, or “spread mode”, the alarm distance corresponding to the mode selection information is based on the correlation. Acquired and the appropriate alarm distance is automatically set. The guardian can optimize the alarm distance only by selecting and inputting the mode, and it is not necessary to manually set the alarm distance value. Therefore, the operation burden on the guardian can be reduced and the convenience can be improved.

  A twelfth aspect of the present invention is the information processing apparatus according to any one of the third to eleventh aspects, wherein the predetermined rule relating to the access order to the plurality of second mobile stations according to the detection result of the position detecting means and the map information The display means of the first mobile station comprises path information generation means for generating and outputting path information for sequentially accessing each of the plurality of second mobile stations from the first mobile station based on the characteristics of the first mobile station Is transmitted from the third antenna means of the base station according to the route information output from the route information generating means, and departs from the first mobile station based on the radio signal received by the first antenna means. Then, the route is displayed so as to arrive at each second mobile station in order according to the predetermined regularity.

  As a result, when an alarm is displayed on the display means of the first mobile station, the guardian follows the path displayed on the display means and quickly and smoothly without hesitation for each of the plurality of guardians. Can be searched and accessed.

  In a thirteenth aspect based on the twelfth aspect, the path information generating means is configured to minimize the path of the entire process for accessing all of the plurality of second mobile stations from the first mobile station. Is generated and output.

  Thereby, when the guardian searches for a plurality of guarded persons, each guardian can be accessed with a minimum distance according to the route displayed on the display means.

  In a fourteenth aspect based on the twelfth aspect, the route information generating means is configured to determine the first mobile station in order from the second mobile station having a higher priority assigned to each of the plurality of second mobile stations. Route information is generated and output so as to be accessed from the network.

  For example, if one guardian is an elderly person or kindergarten child, the child guardian can be reached before the elementary school student or junior high school student, or the female guardian is more than the male guardian. The display is made so that the guardian can reach first, or the sick person can reach before the healthy person. As a result, since it is possible to access the protected person to be searched and protected first as soon as possible, the convenience can be further improved.

  According to a fifteenth aspect, in any one of the second to fourteenth aspects, the first mobile station includes a charging unit that charges the second mobile station in a mounted state.

  Thereby, when not in use, the second mobile station is automatically charged by attaching the second mobile station to the first mobile station (the first mobile station serves as a charger for the second mobile station). Doubles as a function). As a result, it is not necessary to separately install the second mobile station in the charger, and convenience can be improved.

  According to the present invention, it is possible to prevent the protected person from getting lost or separated with one system without complicating the configuration related to communication.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

(A) Basic Configuration Related to Positioning of Mobile Station FIG. 1 is an explanatory diagram schematically showing the overall configuration of an embodiment of a guardian management system of the present invention.

  In FIG. 1, in this example, the guardian management system 1 of this embodiment is applied to the entire building floor (in this example, one floor of a store such as a shopping center, department store, supermarket, etc .; a predetermined movable area). Shows the case. The floor is provided with escalators ES and display shelves ST1 to ST17 for displaying products appropriately arranged. In addition to this floor, a management room ZS for an operator in charge of management (not shown, hereinafter referred to as a manager) is provided (a management room may be provided in the floor).

  The guardian management system 1 of this embodiment includes a mobile station tag T1 (first mobile station) provided in a cart CA used by a guardian (parent in this example) P1, and a name tag (batch) possessed by the guardian P2. ) Shaped mobile station tag T2 (second mobile station) and a plurality (four in the illustrated example) of fixed station readers (base stations) R1, R2, R3, R4 respectively installed at appropriate locations on the floor And a management server S installed in the management room ZS and connected to each of the fixed station readers R1 to R4 via the communication network NW. Hereinafter, as appropriate, the mobile station tags T1, T2 and the like (including a mobile station tag T3 related to another person to be protected P3 as described later) are simply referred to as “mobile station tag T” and fixed. The station leaders R1 to R4 are collectively referred to simply as “fixed station reader R”, the guardian P1 and the guardian P2 (including other guardian P3 as will be described later) and collectively referred to as “protection”. "Person / protected person P". In addition, in FIG. 1, the guardian P1 and the guardian P2 are shown one by one as an example.

  Each fixed station reader R is installed on, for example, a wall surface of the floor, and cooperates with the entire area within the floor as a communication range. Then, information is transmitted / received via radio communication to / from the mobile station tag T that moves together with the guardian / guardian P, and the management server S detects the position of the guardian / guardian P in the floor based on the result. It can be done.

  In addition, each fixed station reader R receives the attribute information (gender information and / or gender information) of the corresponding protected person / protected person P stored in advance in the mobile station tag T (particularly, the mobile station tag T2 related to the protected person P2 or the like). Age information, etc. (described later) can be acquired.

  The management server S stores map information on the floor. That is, for example, a plane coordinate system is set on the floor, the coordinate area occupied by the floor in advance, the installation position of each fixed station reader R1, R2, R3, R4, the arrangement position and occupation area of the escalator ES, the display shelf ST1, ST2, ST3, ST4, ST5, ST6, ST7, ST8, ST9, ST10, ST11, ST12, ST13, ST14, ST15, ST16, ST17 are arranged as map information as shown in FIG. Stored in S.

  In addition, the management server S has a location in the floor of the mobile station tag T based on the distance to the mobile station tag T detected by each fixed station reader R (that is, the location of the guardian P1 and the guardian P2). Detection is performed. Further, the management server S determines from the mobile station tag T1 related to the guardian P to the mobile station tag related to the guardian P2 in accordance with the detection results of the positions of the guardian P1 and the guardian P2 and the map information. The distance to T2 is calculated, and based on the calculated distance, the mobile station tag T1 displays a warning for the guardian P1 (details will be described later).

  FIG. 2 is a functional block diagram showing a functional configuration of the guardian management system 1 of the present embodiment. Note that only one fixed station reader is shown in order to avoid the complexity of illustration.

  In FIG. 2, the guardian management system 1 includes the mobile station tag T1 related to the guardian P1 and the mobile station tags T2 and T3 related to the guardian P2, as described above. The same applies hereinafter), the fixed station readers R1 to R4 that perform wireless communication with the mobile station tags T1, T2, and T3, and the management connected to the fixed station readers R1 to R4 via an appropriate communication network NW. Server S.

  For example, when a manager (operator) of the management room operates the management server S, a control signal is output from the management server S to each fixed station reader R via the communication network NW, and detection by each fixed station reader R is performed. A signal including the result is output to the management server S.

  The fixed station reader R has a reader main body 11 and a reader antenna (third antenna means) 12.

  The reader body 11 includes a wireless unit 16, an RSSI unit 17, a network communication control unit 18, a clock unit 19A, an arrival time detection unit 19, and a control unit 20.

  The wireless unit 16 performs wireless functions such as modulation, demodulation, and amplification for transmitting and receiving radio signals. The RSSI unit 17 detects the signal strength of the received signal.

  The network communication control unit 18 controls transmission / reception of control signals and information signals with the management server S via the communication network NW. The clock unit 19A has a function of outputting the current time (time information). In the present embodiment, a wired network using a cable or the like is assumed for the communication network NW. However, the present invention is not limited to this, and a wireless network may be used.

  The control unit 20 controls the operation of the entire fixed station reader R including the radio unit 16, the RSSI unit 17, the network communication control unit 18, the arrival time detection unit 19, and the clock unit 19A. That is, the control unit 20 performs signal processing according to a program stored in advance in the ROM while using the temporary storage function of the RAM. Specifically, the control unit 20 receives an input of a position detection processing execution command from the management server S, performs detection processing of the mobile station tags T1 to T3 by wireless communication via the reader antenna 12, and the detection result Is output to the management server S via the communication network NW. The control unit 20 also provides alarm information to the guardian P1, floor map information, and the position of the mobile station tag T, which is instructed by the management server S according to the distance between the mobile station tag T1 and the mobile station tags T2 and T3. Information or the like is transmitted to the mobile station tag T1 related to the guardian P1 by wireless communication via the reader antenna 12, and a corresponding display is performed. Further, the control unit 20 receives an input of an execution command for acquiring attribute information related to the guardian / guarded person P stored in the mobile station tag T from the management server S and moves by wireless communication via the reader antenna 12. It also has a function of performing information acquisition processing from the station tags T1 to T3 and outputting the acquired information (attribute information) to the management server S via the communication network NW (refer to modification examples described later).

  When high frequency power is supplied from the control unit 20, the reader antenna 12 generates and transmits a corresponding radio signal. Conversely, when the reader antenna 12 receives a radio signal, the received radio signal is output to the control unit 20.

  The management server S includes a CPU (central processing unit) 21, a memory 22, an operation unit 23, a display unit 24, a mass storage device 25, and a network communication control unit 26.

  The memory 22 is composed of, for example, a RAM or a ROM. Instructions and information from the administrator are input to the operation unit 23. Various information and messages are displayed on the display unit 24. The large-capacity storage device 25 is composed of a hard disk device, and stores a variety of information such as the above-described map information of the floor and attribute information of the guardian / guardian P (when not previously stored in the mobile station tag T). Function as. The network communication control unit 26 controls the exchange of control signals and information signals with the fixed station readers R1 to R4 via the communication network NW.

  Among the mobile station tags T1 to T3, the mobile station tag T1 related to a guardian is an IC circuit unit 31 (storage unit), a tag antenna (first antenna unit) 32, a display unit DP (display unit), and an operation. A part 36 (operation means) and a connector part 37 are provided.

  The IC circuit unit 31 includes a radio unit 33 that realizes radio functions such as modulation, demodulation, and amplification for transmitting and receiving radio signals, and a control unit 34 that controls the operation of the entire mobile station tag T including the radio unit 33. And a power source unit 39 having a power storage and power feeding function (the clock unit 35 will be described later).

  The operation unit 36 is used by the user of the mobile station tag T1 (that is, the protected person P1) to perform predetermined operation inputs (details will be described later) such as various settings and selections. When the mobile station tags T2 and T3 are detachably attached to the mobile station tag T1 (see FIG. 5 described later), the connector unit 37 supplies the power stored in the power supply unit 39 to the mobile station tags T2 and T3. Is to do. The connector part 37 and the power supply part 39 constitute the charging means described in each claim.

  The display unit DP is for displaying and notifying the alarm information to the guardian P1, the map information of the floor, the position information of the mobile station tags T1, T2, T3, etc. (FIG. 11 and the like described later). See).

  As described above, the mobile station tag T1 is provided in the cart CA (see FIG. 4 described later).

  On the other hand, the mobile station tags T2 and T3 related to the person to be protected have the same function and configuration as the mobile station tag T1, the IC circuit unit 31 (storage unit), the tag antenna (second antenna means) 32, and the connector. Part 40.

  When the mobile station tags T2 and T3 are attached to the mobile station tag T1 (see FIG. 5 described later), the connector section 40 is electrically connected to the connector section 37 and receives power supply. The supplied power is supplied to the power supply unit 39 via the control unit 34 and stored.

  For example, as shown in FIG. 3, the mobile station tags T2 and T3 are individually protected by the appropriate methods such as putting them in a pocket in the form of a card or hanging them from the neck in a pendant shape. Is possessed by.

  Further, the mobile station tags T1, T2, and T3 used in this example are active tags that are driven by power from the internal power supply unit 39 as described above. As a result, the mobile station tags T1, T2, T3 can receive even relatively weak radio signals.

  The mobile station tags T1, T2, and T3 have their identification information (tag IDs) associated with each other in advance (the upper digit of the tag ID is common, the tag ID is a serial number, etc.). Is convenient to be used by a group consisting of a guardian P1 and a guardian P2.

  FIG. 4 is a perspective view showing an external structure of the cart CA used by the guardian P. In FIG. 4, the cart CA includes a lower frame body 42 and an upper frame body 41 that are configured in a substantially frame shape using, for example, metal or resin, and 4 below the lower frame body 42 so that the cart CA can freely run. One wheel 43, a car support 44 provided on the front side of the upper frame 41 for installing a shopping basket, and a guard P1 as an operator provided on the top of the upper frame 41. A gripping portion 46 for gripping with a hand and a tag support portion 45 provided on the upper frame body 41 substantially horizontally on the front side of the gripping portion 46 are provided. The mobile station tag T1 is disposed substantially horizontally above the tag support portion 45 so that the display portion DP is on the top surface.

  FIG. 5 is a top view showing a detailed structure of the mobile station tag T1. As shown in FIG. 5, the mobile station tag T1 is provided with the display unit DP (consisting of a substantially rectangular LED or the like in this example) on the upper surface of the housing 38, and the operation unit 36 at the lower right. Is provided. Two recesses CV and CV for detachably mounting the mobile station tags T2 and T3 are provided on the front side of the housing 38 (upper side in FIG. 5).

  When the mobile station tag T2 (or mobile station tag T3) is inserted into the recess CV and attached, the connector portion 37 provided in the recess CV of the mobile station tag T1 is connected to the mobile station tag T2 (or mobile station tag T3). It connects with the said connector part 40, and is conduct | electrically_connected. As a result, the power previously stored in the power supply unit 39 of the mobile station tag T1 is supplied to the power supply unit 39 of the mobile station tag T2 (or the mobile station tag T3) via the connector unit 37 and the connector unit 40. Is done. Thus, since the mobile station tag T1 also functions as a charger, there is no need to separately install a charger for charging the mobile station tag T2 and the like, and convenience can be improved.

  When the mobile station tag T2 (or the mobile station tag T3) is mounted in the concave portion CV of the mobile station tag T1 as described above, not only the above charging but also the mobile station tag T1 and the mobile station tag T2 (and the mobile station tag T2). The station tag T3) may be recognized and registered as one group. Specifically, for example, the identification information (tag ID) stored in the IC circuit unit 31 of the mobile station tag T2 (or mobile station tag T3) is connected to the connector units 37 and 40, and the control unit of the mobile station tag T1 is connected. 34. And it is recognized and memorize | stored in the IC circuit part 31 of the mobile station tag T1 as one group information with the identification information (tag ID) of the said mobile station tag T1. Similar group information may also be stored in the IC circuit unit 31 of the mobile station tag T2 (or mobile station tag T3). Alternatively, instead of the grouped recognition and storage as described above, only the identification information of the other party (for example, the mobile station tag T2 viewed from the mobile station tag T1 and the mobile station tag T1 viewed from the mobile station tag T2) at the time of charging is used. You may make it memorize | store in each IC circuit part 31. FIG. In any case, the storing process in the IC circuit unit 31 executed by each mobile station tag T1, T2, etc. constitutes the registration means described in each claim.

(B) Method Principle of Mobile Station Position Detection FIG. 6 is a diagram for explaining the principle of a method for detecting the position of the mobile station tag T in the guardian management system 1 of the present embodiment. 6 shows an example in which the position of one mobile station tag T is detected by three fixed station readers R1 to R3 in order to avoid the complexity of illustration.

  In FIG. 6, the mobile station tag T possessed by the guardian / guardian P can move to a free coordinate position within the floor where the plane coordinate system is set as described above, whereas three fixed station readers R1 to R3 are fixedly arranged at known installation positions on the same floor. The fixed station readers R1 to R3 are connected to one management server S through a communication network NW so as to be able to send and receive information.

  In this configuration, the management server S determines the distance from each fixed station reader R1 to R3 to the mobile station tag T based on the reception time difference of the radio signal from the mobile station tag T at each fixed station reader R1 to R3. Measure and detect. That is, at least one of the fixed station readers R1 to R3 transmits a predetermined transmission request signal to the mobile station tag T, and the mobile station tag T fixes each radio signal (distance detection radio signal) correspondingly. Transmit to the station leaders R1 to R3. At this time, the time (arrival time) from when the mobile station tag T transmits a radio signal for distance detection until it is received by the fixed station reader R is the spatial distance between the fixed station reader R and the mobile station tag T. Proportional to distance. When the distance from each fixed station reader R to the mobile station tag T is different, the arrival time becomes a different value for each fixed station reader R and a time difference occurs. The management server S can calculate the distance between each fixed station reader R and the mobile station tag T based on the time difference.

  After the distances between the fixed station readers R1 to R3 and the mobile station tag T are calculated as described above, the management server S knows the fixed station readers R1 to R3 corresponding to these distances. The position of the mobile station tag T is calculated based on the installation position coordinates.

  Specifically, for example, the distance between the first fixed station reader R1 located at coordinates (x1, y1) and the mobile station tag T located at coordinates (x, y) is located at r1 and coordinates (x2, y2). The distance between the second fixed station reader R2 and the mobile station tag T is r2, and the distance between the third fixed station reader R3 located at the coordinates (x3, y3) and the mobile station tag T is r3. In addition, the error s is based on the time lag of each of the clock units 19A of the fixed station readers R1 to R3. Then, each of the first fixed station reader R1, the second fixed station reader R2, and the third fixed station reader R3 receives the reception time when the distance detection radio signal transmitted from the mobile station tag T at time T0 is received as T1, Let T2 and T3.

Under the above conditions, in FIG.
r1 + s = √ {(x−x1) ² + (y−y1) ² } (1A)
r2 + s = √ {(x−x2) ² + (y−y2) ² } (1B)
r3 + s = √ {(x−x3) ² + (y−y3) ² } (1C)
Holds.

Then, by subtracting equation (1B) from equation (1A),
| R1-r2 | = c × | T1-T2 | (1D)
Moreover, by subtracting the formula (1C) from the formula (1A),
| R1-r3 | = c × | T1-T3 | (1E)
The relationship expressed by In addition, c is a radio wave speed (= speed of light: about 3.0 × 10 ⁸ [m / s]).

  At this time, (the reception times T1, T2, and T3 are known as measured values), there are only three variables r1, r2, and r3. Therefore, the above two equations (1D) and (1E) are expressed by, for example, the Newton-Raphson method It is possible to specify the x and y coordinates (x, y) of the position of the mobile station tag T by solving the above. In addition, by providing four fixed station readers R1 to R4 as in the present embodiment, it is possible to perform position detection with higher accuracy. Although not described in detail, a method may be used in which each fixed station reader R receives a radio wave transmitted by the mobile station tag T1 and detects a position based on the intensity of the received radio wave.

  In the above example, each of the fixed station readers R1 to R3 only detects the reception time of the radio signal and transmits it to the management server S, and the positioning process (distance from the fixed station readers R1 to R3 to the mobile station tag T). Is calculated by the management server S, but is not limited thereto. That is, the control units 20 of the fixed station readers R1 to R3 transmit / receive the reception time information to each other, and the fixed station readers R1 to R3 perform calculation of the distance to the mobile station tag T (= position detecting means). And the calculation result (distance data) may be transmitted to the management server S. Alternatively, each of the fixed station readers R1 to R3 performs the detection of the distance from the mobile station tag T1 to the mobile station tag T2 (= function as distance detection means described later), and the distance reaches a predetermined alarm boundary distance. It is also conceivable that each fixed station reader R1 to R3 performs the determination up to whether or not (= function as determination means described later). In any case, the management server S totals the detection results and determination results from the respective fixed station readers R1 to R3 and performs subsequent processing.

(C) Danger when the guardian's eyes stop reaching For example, in FIG. 7, the guardian P1 is located between the display shelf ST1 and the display shelf ST2, and the guardian P2 also includes the display shelf ST1 and the display shelf. It is located in the vicinity of ST2, and the distance between the guardian P1 and the guardian P2 is relatively short. For this reason, if the guardian P1 is facing the guardian P2 side (the right side in FIG. 7), the guardian P2 can be easily seen. Is less likely (relatively safe).

  On the other hand, when the to-be-protected person P2 is located near the display shelf ST4 as shown in FIG. 8, the distance from the to-be-protected person P1 to the to-be-protected person P2 becomes relatively long. In this case, even if the guardian P1 faces the guardian P2 side (the right side in FIG. 8), the guardian P1 may change the guardian P2 because the distance is long or the display shelf ST4 blocks the field of view. It will not be easily visible. For this reason, the guardian P2 is separated from the guardian P1 in the gap between the eyes, and as shown in FIG. 9, the guardian P2 cannot be found (is lost) regardless of the direction of the guardian P1. There is.

(D) Alarm Issue In the present embodiment, the distance between the guardian P1 and the guardian P2 is a threshold value in view of the difficulty in reaching the guardian P1 due to the increase in distance as described above. When a certain alarm boundary distance (alarm distance) is reached, a corresponding alarm (alarm) is displayed and displayed on the display unit DP of the mobile station tag T1, and the position of the protected person P2 (the mobile station tag T2 Position) is displayed on a map.

  FIG. 10 is a diagram illustrating an example of the alarm boundary distance. In FIG. 10, a circle (alarm boundary line) whose radius is the alarm boundary distance from the guardian P1 is indicated by a dotted line. When the protected person P2 is located within the circle (not including the circle) of the alarm boundary line, the distance between the guardian P1 and the protected person P2 is less than the alarm boundary distance, so the mobile station No alarm is issued on the display portion DP of the tag T1 (in the case of (a) in FIG. 7). On the other hand, when the protected person P2 is located on or outside the circle of the alarm boundary line, the distance between the guardian P1 and the protected person P2 is equal to or greater than the alarm boundary distance, so the mobile station tag An alarm is issued on the display portion DP of T1 (in the case of (A) in FIG. 7). In the embodiment of the present invention, the alarm boundary distance of the guardian P1 and the position of the guardian P2 are determined.

  FIG. 11 is a diagram illustrating a display example of the mobile station tag T1 on the display unit DP when the alarm is issued (when the mobile station tag T2 is (A) in FIG. 10). As shown in FIG. 11, the map of the floor shown in FIG. 7 and the like is displayed over most of the display portion DP (in this example, about the lower third quarter of the entire area). On the map, the position of the mobile station tag T1 corresponding to the position of the guardian P1 (indicated by “current position” in the figure) and the position of the mobile station tag T2 corresponding to the position of the guardian P2 (see FIG. It is indicated by “Child position”. Then, an alarm message AL (“the child has moved away!”) Is displayed on the remaining upper portion of the display portion DP (in this example, the upper quarter of the entire area).

(E) Control sequence FIG. 12 shows a management server S, fixed station readers R1 to R4, a mobile station tag T1 (indicated by “guardian station” in the figure), and a mobile station tag T2 (in FIG. 12, “protected station” in the figure). It is a sequence diagram showing an example of transmission / reception of various signals transmitted and received between and control operations. In FIG. 12, each procedure is basically represented by a time series change from the upper side to the lower side in the figure. As described above, signals are transmitted and received between the management server S and the fixed station readers R1 to R4 via the communication network NW. In addition, signals are transmitted and received between the fixed station readers R1 to R4 and the mobile station tags T1 and T2.

  First, in step SS10, the CPU 21 of the management server S sends the mobile station tags T1, R1 to the fixed station readers R1 to R4 (or one specific fixed station reader R) via the network communication control unit 26. An instruction signal is output so as to transmit a radio wave transmission request for distance detection to T2. Thus, in step SR10, the radio unit 16 of each fixed station reader R1 to R4 (or one specific fixed station reader R) transmits a radio wave transmission request signal to the mobile station tags T1 and T2 via the reader antenna 12. To do.

  Then, the wireless unit 33 of the mobile station tag T1 that has received this transmission request signal transmits a corresponding radio signal for distance detection via the tag antenna 32 in step SP10. Similarly, the wireless unit 33 of the mobile station tag T2 In step SC10, a corresponding distance detection radio signal is transmitted via the tag antenna 32. The radio unit 16 of each of the fixed station readers R1 to R4 receives each distance detection radio signal via the reader antenna 12 in step SR20. Then, the arrival time detection unit 19 detects the reception time information at that time, and the control unit 20 outputs the reception time information to the management server S via the network communication control unit 18.

  Then, in step SS20, the CPU 21 of the management server S calculates the distance between the mobile station tags T1 and T2 based on the difference in reception time (= difference in arrival time) input from each of the fixed station readers R1 to R4. . Thereafter, in the next step SS30, the CPU 21 of the management server S calculates the position coordinates of the mobile station tags T1 and T2 by the method described above with reference to FIG. 6 based on the distance calculated in step SS20 (= position Detection means).

  In step SP10 and step SC10, a radio signal for distance detection is transmitted from the mobile station tag T in response to a transmission request from the fixed station readers R1 to R4 (or a specific fixed station reader R). Not limited to this. That is, the mobile station tag T continues to transmit a radio signal spontaneously at regular time intervals, and each fixed station reader R receives the radio signal continuously transmitted, and based on this, the management server S performs distance detection. May be.

  Next, in step SS40, the CPU 21 of the management server S, based on the position coordinates of the mobile station tags T1 and T2 calculated in step SS30 and the map information of the floor stored in advance in the large-capacity storage device 25, The distance from the mobile station tag T1 to the mobile station tag T2 (in other words, the distance from the guardian P1 to the guardian P2) is calculated (distance detection means).

  Thereafter, in step SS50, based on the detection result in step SS40, it is determined whether the distance between the mobile station tag T1 and the mobile station tag T2 has reached the predetermined alarm boundary distance (determination) means). If the distance between the mobile station tag T1 and the mobile station tag T2 is less than the alarm boundary distance, the determination in step SS50 is not satisfied and (the guardian P1 is not far enough to risk losing the guardian P2). End this flow. If the distance between the mobile station tag T1 and the mobile station tag T2 is equal to or greater than the alarm boundary distance, the determination in step SS50 is satisfied, and the process proceeds to step SS210.

  In step SS210, the CPU 21 of the management server S provides the map information and the positions of the mobile station tag T1 and the mobile station tag T2 detected in step SS30 to the fixed station readers R1 to R4 via the network communication control unit 26. An instruction signal is output so as to transmit information and a predetermined alarm instruction (alarm generating means). The fixed station readers R1 to R4 check whether or not the instruction signal is input in step SR40. If the instruction signal is detected, the radio unit 16 of the corresponding fixed station reader R1 to R4 detects the instruction signal in step SR50. The map information, the position information of the mobile station tags T1 and T2, and the alarm instruction are transmitted to the mobile station tag T1 associated with the guardian P1 via the reader antenna 12.

  In the mobile station tag T1 related to the guardian P1, the presence or absence of the transmission signal is inspected in step SP20, and reception of the map information / position information / alarm instruction is detected by the wireless unit 33 via the tag antenna 32. In this case, in step SP30, the control unit 34 of the mobile station tag T1 generates the display information corresponding to the received map information, the position information of the mobile station tags T1 and T2, and the alarm instruction and outputs the display signal to the display unit DP. Then, the position display of the mobile station tags T1 and T2 on the map and the display of the alarm message AL are performed, and this flow is finished. By repeating this flow as needed, the position of the mobile station tag T1 is monitored, and position information / alarm is displayed promptly when the mobile station tag T1 is more than the alarm boundary distance.

  As described above, in the guardian management system 1 of this embodiment, when a radio signal for distance detection is transmitted from the mobile station tag T, the radio signal is transmitted to the radio unit 16 of the fixed station readers R1 to R4. The reception time of the radio signal at this time is detected by the arrival time detector 19. Thereby, the management server S detects the positions of the mobile station tags T1 and T2 based on the reception time difference information of the fixed station readers R1 to R4 (step SS20). Thereafter, the management server S calculates the distance from the mobile station tag T1 related to the guardian P1 to the mobile station tag T2 related to the guardian P2 (step SS40), and whether or not the distance has reached a predetermined alarm boundary distance. Is determined (step SS50). When the alarm boundary distance is reached, the corresponding alarm message AL and the position of the mobile station tags T1, T2 are displayed on the display unit DP of the mobile station tag T1 related to the guardian P1.

  As described above, when the position of the guardian P2 is farther than the alarm boundary distance of the guardian P1, the alarm message AL is automatically displayed on the mobile station tag T1 to alert the guardian P1. be able to. In this way, for example, prevention of lost children with parents and children (parents are parents P1 and children are protected P2), or members are prevented from leaving other groups (such as a teacher P1 who is a guardian P1 and students are P2). Etc. can be effectively achieved. In addition, when a child is lost or a member leaves the group, the guardian P1 can immediately recognize this by displaying the warning message AL, so that a quick response such as searching for the guardian P2 immediately. Can be taken. At this time, the guardian P1 can clearly confirm the position of the guardian P2 on the map in the display unit DP. Furthermore, it is possible for the guardian P1 to estimate the distance, access route, etc. from his position to the position of the guardian P2 on the map.

  At this time, there is also an effect that the configuration related to communication can be simplified as compared with the GPS method. That is, if the positions of the guardian P1 and the guardian P2 are detected by the GPS method, the guard station P1 receiving station or the guardian P2 receiver station receives information from the GPS satellite. Each will calculate its own position. Therefore, when an alarm display similar to the above is to be performed, each of the two receiving stations further transmits its own position information calculated by itself to a server or the like, and the server determines the distance between the two receiving stations. Need to ask. That is, the receiving station needs to have a configuration corresponding to two types of communication, that is, communication with the GPS satellite and communication with the server side. On the other hand, in the present embodiment, as described above, both the mobile station tag T1 and the mobile station tag T2 need only be configured to support communication with the fixed station reader R side. Therefore, the configuration related to communication can be simplified.

  The present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit and technical idea of the present invention. Hereinafter, such modifications will be described.

(A-1) When the guardian manually sets the alarm boundary distance In the above embodiment, the alarm boundary distance is fixedly set in advance. In this modification, the alarm boundary distance is manipulated. It is set manually by the guardian P1 who is a person.

  FIG. 13 is a sequence diagram illustrating an example of transmission and reception of various signals transmitted and received between the management server S, the fixed station readers R1 to R4, the mobile station tag T1, and the mobile station tag T2 and the control operation in this modification example. It is a figure corresponding to FIG. 12 of the said embodiment. Parts equivalent to those in FIG. 12 are denoted by the same reference numerals.

  13 is different from FIG. 12 in that step SS42, step SR22, step SP100, step SP22, and step SR27 are newly provided between step SS40 and step SS50, which are related to the setting of the alarm boundary distance.

  That is, when step SS40 is completed, in step SS42, the CPU 21 of the management server S moves to each of the fixed station readers R1 to R4 (or one specific fixed station reader R) via the network communication control unit 26. An instruction signal is output so as to transmit an alarm boundary distance setting request to the station tag T1. As a result, in step SR22, the radio unit 16 of each of the fixed station readers R1 to R4 (or one specific fixed station reader R) transmits an alarm boundary distance setting request signal to the mobile station tag T1 via the reader antenna 12. To do.

  Then, the control unit 34 of the mobile station tag T1 that has received this alarm boundary distance setting request signal via the radio unit 33 executes an alarm boundary distance setting process in step SP100 to set the alarm boundary distance.

  Thereafter, the mobile station tag T1 transmits the setting result of the alarm boundary distance via the tag antenna 32 in step SP22. The radio unit 16 of each fixed station reader R1 to R4 (or one specific fixed station reader R) receives the alarm boundary distance setting result via the reader antenna 12 in step SR27. Then, the control unit 20 outputs the received alarm boundary distance setting result to the management server S via the network communication control unit 18, and the management server S sets the alarm boundary distance according to the input setting result. (Alarm distance setting means).

  Subsequent steps SS50 and subsequent steps are the same as those in FIG.

  FIG. 14 is a flowchart showing the detailed procedure of step SP100 executed by the mobile station tag T1 related to the guardian P1 in FIG. In FIG. 14, first, in step SP105, the control unit 34 generates a display signal and outputs the display signal to the display unit DP to cause a predetermined display (not shown) for prompting the guardian P1 to input an alarm boundary distance. .

  Then, the process proceeds to step SP110, and in response to the display in step SP105, the guardian P1 instructs the alarm boundary distance value (for example, “5 m”, “10 m”, etc.) by the operation unit 36, and corresponds to the indicated value. It is determined whether or not an operation signal (operation information, input signal) has been input (operation information acquisition means). The determination is not satisfied until the guardian P1 inputs an instruction, and the loop waits. If there is an instruction input, the determination is satisfied, and the process proceeds to step SP115.

  In step SP115, the instruction value of the guardian P1 input in step SP110 is set as the alarm boundary distance.

  Thereafter, in step SP120, it is determined whether or not the value of the alarm boundary distance input in step SP115 is within a preset appropriate range (for example, 1 m to 50 m). If it is outside the appropriate range, the determination at step SP120 is not satisfied and the routine returns to step SP105 and the same procedure is repeated. If it is within the appropriate range, the determination at step SP120 is satisfied, and this flow ends.

  FIG. 15 is a diagram illustrating a display example of the mobile station tag T1 on the display unit DP at the time of alarm generation in the present modification, and corresponds to FIG. 11 described above. As shown in the figure, in this modification, the value of the alarm boundary distance set by the guardian P1 is displayed on the sub display part DPa provided separately at the lower left of the display part DP (in this example, the setting is 5 m). It has become.

  In this modification, the alarm boundary distance is set based on the operation of the guardian P1 via the operation unit 36 of the mobile station tag T1. Therefore, the environment of the position where the guardian P1 and the guardian P2 exist (whether it is a safe place to keep your eyes open, a dangerous place to keep your eyes open, or a place where you can easily get lost), or By looking at the attributes of protected person P2 (whether it is a safe age to keep an eye on, a dangerous age if you take your eyes off, an elderly person with weak feet, etc.), etc. Thus, it is possible to set an appropriate alarm boundary distance that directly and reliably reflects the intention of the guardian P1. When the position of the guardian P2 becomes farther than the alarm boundary distance of the guardian P1, a warning message AL is displayed. As a result, convenience is further improved.

(A-2) When the guardian manually inputs the attributes of the guardian and sets the alarm boundary distance In this modification, the guardian P1 directly sets the distance as in the modification (a-1) above. Instead of inputting, the attribute of the guardian P2 (in this example, age, generation, etc.) is input, and the alarm boundary distance is set according to the table prepared in advance on the mobile station tag T1 side accordingly. is there.

  FIG. 16 is a diagram showing a table representing correspondence between attributes of the guardian P2 and the alarm boundary distance set in advance in the IC circuit unit 31 of the mobile station tag T1 as the correlation storage means.

  In this example, so that the alarm boundary distance is closer as the age of the protected person P2 is smaller, the distance up to 3 years old is set to 2 m, 5 m for kindergarten children, 10 m for the elementary school lower grades, and 20 m for the upper elementary grades.

  The sequence representing an example of transmission / reception of various signals and control operations between the management server S, the fixed station readers R1 to R4, the mobile station tag T1, and the mobile station tag T2 in the present modification example is shown in FIG. This is the same as that described above, except for the details of the detailed procedure for setting the alarm boundary distance in step SP100 executed by the mobile station tag T1.

  FIG. 17 is a flowchart showing the detailed procedure of step SP100 in FIG. 13 in the present modification. In FIG. 17, first, in step SP110, the control unit 34 of the mobile station tag T1 generates a display signal and outputs it to the display unit DP, and prompts the guardian P1 to input an instruction regarding the attribute of the guardian P2. Display (not shown) is performed.

  Then, the process proceeds to step SP140, and in response to the display in step SP110, the guardian P1 instructs the attribute of the guardian P2 (for example, “elementary school lower grade”, “kindergarten”, etc.) by the operation unit 36, and the indicated value It is determined whether an operation signal (operation information, input signal) corresponding to is input (operation information acquisition means). In addition, you may make it make the guardian P1 select and input from the preset item. The determination is not satisfied until the guardian P1 inputs an instruction, and the process returns to step SP110 and the same procedure is repeated. If there is an instruction input, the determination is satisfied and the process proceeds to step SP150.

  In step SP150, the alarm boundary distance is set with reference to the correlation shown in FIG. 16 based on the attribute of the guardian P2 input by the guardian P1 in step SP140. Then, this flow ends.

  FIG. 18 is a diagram illustrating a display example on the display unit DP of the mobile station tag T1 at the time of alarm generation in the present modification, and corresponds to FIG. 11 and the like. As shown in the figure, in this modification, the attribute of the protected person P2 set by the guardian P1 is displayed on the sub-display part DPb separately provided at the lower left of the display part DP (in this example, “elementary school lower grades”). ]) In addition, there are other age categories such as “elderly” and “adult”, age, sex of “male” and “female”, health of “sick” and “healthy body”. It may be possible to input (or select) by category such as the situation.

  In this modification, when the guardian P1 inputs the attribute information of the guardian P2 via the operation unit 36 of the mobile station tag T1, the alarm boundary distance corresponding to the attribute information is acquired based on the correlation, The appropriate alarm boundary distance is automatically set. As a result, the alarm boundary distance is optimized simply by inputting what attribute the protected person P2 has, so that the guardian P1 does not need to manually set the value of the alarm boundary distance. Therefore, the operation burden on the guardian P1 can be reduced, and convenience can be improved.

  In the above, the correlation between the attribute of the protected person P2 and the alarm boundary distance is prepared in advance, and the alarm boundary distance is automatically set by the guardian P1 inputting the attribute of the protected person P2. Not limited to this. In other words, several mode settings related to the alarm boundary distance are prepared, correlation between each mode and the alarm boundary distance is prepared in advance, and the guard boundary P1 automatically sets the alarm boundary distance by selecting the mode. Also good.

  In this case, when the guardian P1 selects and inputs a mode such as “long mode”, “short mode”, “normal mode”, “careful mode”, and “spreading mode”, the alarm boundary distance corresponding to the mode selection information is correlated. And an appropriate alarm boundary distance is automatically set. Since the alarm boundary distance is optimized only by selecting and inputting the mode via the operation unit 36, the guardian P1 does not need to manually set the value of the alarm boundary distance. Therefore, like the above, the operation burden on the guardian P1 can be reduced, and convenience can be improved.

(B-1) When the management server automatically changes the alarm boundary distance according to the position of the person to be protected In the modification of (a-2) above, the alarm boundary distance at the mobile station tag T1 according to the attribute of the person to be protected P2 Was set to be variable. On the other hand, in the present modification, the management server S sets the alarm boundary distance as compared with the other cases, for example, when it is located in a predetermined caution area with a high degree of danger according to the position of the person to be protected P2. It is to make it smaller.

  FIG. 19 is a diagram illustrating an example of the variable setting of the alarm boundary distance in the present modification, and corresponds to FIG. 10 of the embodiment. In FIG. 19, as in FIG. 10, a circle (alarm boundary line) whose radius is the alarm boundary distance from the guardian P <b> 1 is indicated by a dotted line. In this example, the caution area D (predetermined area) is set in the vicinity of the escalator ES. In the case of (i) or (i ′) in the figure where the protected person P2 is located outside the attention area D, the alarm boundary distance (i) is set to a normal value (for example, 5 m), while In the case of (ii) in the figure where the guardian P2 is located in the attention area D, the alarm boundary distance (ii) is automatically changed to a shorter (for example, 3 m) alarm boundary distance (ii) (assuming attention).

  That is, in the normal case where the person to be protected P2 is located outside the attention area D, for example, the alarm boundary distance (i) of 5 m is applied. In the case of (i ′) in the figure 4 m away, the alarm is not issued.

  On the other hand, when the person to be protected P2 is located in the attention area D, for example, the alarm boundary distance (ii) of 3 m is applied. Even in the case of (ii) in the figure where the protected person P2 is separated by 4 m from the alarm, a warning is issued.

  FIG. 20 is a sequence diagram illustrating an example of transmission and reception of various signals transmitted and received between the management server S, the fixed station readers R1 to R4, the mobile station tag T1, and the mobile station tag T2 and the control operation in this modification example. It is a figure corresponding to the said FIG. Components equivalent to those in FIG. 12 are denoted by the same reference numerals, and description thereof is omitted or simplified.

  In FIG. 20, step SS100 which is an alarm boundary distance setting procedure is provided between step SS40 and step SS50. In step SS40, after calculating the distance from the mobile station tag T1 related to the guardian P1 to the mobile station tag T2 related to the guardian P2, the process proceeds to step SS100. In step SS100, the alarm boundary distance is variably set depending on whether or not the person to be protected P2 is located in the area requiring attention D in accordance with the position detection result in step SS30 (refer to FIG. 21 described later for details). ).

  After step SS100, step SS50 and subsequent steps are the same as those in FIG.

  FIG. 21 is a flowchart showing the detailed procedure of step SS100 of FIG. 20 in the present modification.

  In FIG. 21, first in step SS150, based on the position information of the mobile station tag T2 detected in step SS30 (the position detection signal from each reader R at the time of position detection corresponds to the input signal described in each claim). Then, it is determined whether or not the position of the mobile station tag T2 (position of the person to be protected P2) is within the caution area D. For example, the management server S may store the arrangement information of the attention area D in advance (may be set by the guardian P1 via the operation unit 36 of the mobile station tag T1).

  When the position of the person P2 to be protected is outside the attention area D, the determination at Step SS150 is not satisfied, and the routine goes to Step SS155, where the alarm boundary distance is set to a normal value (5 m in the above example). When the position of the person to be protected P2 is within the attention area D, the determination at Step SS150 is satisfied, and the routine goes to Step SS160, where the alarm boundary distance is set shorter than the normal value (3 m in the above example). Step SS155 and step SS160 constitute alarm distance setting means described in each claim. When step SS155 or step SS160 is completed, this flow is finished.

  FIG. 22 is a diagram showing a display example on the display unit DP of the mobile station tag T1 at the time of alarm issuance (corresponding to the case of (ii) in FIG. 19) in this modified example. It is a corresponding figure. As described above, in this modified example, the guardian P2 is not greatly separated from the guardian P1, but the alarm boundary distance is outside the circle because the guardian P2 is located in the attention area D in the vicinity of the escalator ES. Message AL is displayed.

  In this modified example, the person to be protected P2 is located in a caution area D (for example, a place where it is dangerous if the guardian P1 keeps an eye, a place where the person to be protected P2 is likely to get lost, etc., in this example, near the escalator). Automatically switch the alarm boundary distance short. As a result, the warning is displayed earlier than usual at the mobile station tag T1, so that the guardian P1 can easily reach the guardian P2, and the warning is not frequently displayed. Since the alarm is displayed promptly only when the performance is improved, the safety is improved without impairing the convenience.

(B-2) When the alarm boundary distance is automatically changed according to the attribute of the person to be protected In the modified example of (b-1), the alarm boundary distance is set according to whether or not the person to be protected P2 is located in the area requiring attention. Set to variable. On the other hand, in this modification, the attribute information of the person to be protected P2 is acquired from the mobile station tag T2, and the alarm boundary distance is variably set according to the attribute.

  FIG. 23A and FIG. 23B are explanatory diagrams conceptually showing an example of stored information of the IC circuit unit 31 of the mobile station tag T2 in this modification. The example of FIG. 23A is a case where the to-be-protected person P2 is a 5-year-old boy. The IC circuit unit 31 includes identification information (tag ID), gender information (male) constituting attribute information, and age. Information (5 years old) is stored. The example of FIG. 23B is a case where the guardian P2 is an 8-year-old girl, and the IC circuit unit 31 includes identification information (tag ID), gender information (female) constituting attribute information, and age. Information (8 years old) is stored.

  FIG. 24 is a sequence diagram illustrating an example of transmission and reception of various signals transmitted and received between the management server S, the fixed station readers R1 to R4, the mobile station tag T1, and the mobile station tag T2 and the control operation in this modification example. It is a figure corresponding to the said FIG. 12 and FIG. The same steps as those in FIG. 12 are denoted by the same reference numerals, and description thereof is omitted or simplified.

  24, in this sequence, between step SS40 and step SS50, steps SS60, SR30, SC20, and SR40 related to the acquisition of the attribute information, and the alarm boundary distance using the acquired attribute information. The procedure of step SS150 related to the setting of the above is newly provided.

  That is, in step SS40, after calculating the distance between the mobile station tag T2 related to all the protected persons P2 and the mobile station tag T1 related to the guardian P1, the process proceeds to step SS60. In step SS60, the CPU 21 of the management server S transmits an attribute information transmission request (for the corresponding protected person P2) to the mobile station tag T2 to the fixed station readers R1 to R4 via the network communication control unit 26. The instruction signal is output. As a result, in step SR30, the radio units 16 of the corresponding fixed station readers R1 to R4 transmit the attribute information transmission request signal to the mobile station tag T2 via the reader antenna 12.

  And the radio | wireless part 33 of the mobile station tag T2 which each received this transmission request signal transmits the attribute information of corresponding to-be-protected person P2 via the tag antenna 32 in step SC20. The radio units 16 of the corresponding fixed station readers R <b> 1 to R <b> 4 receive attribute information via the reader antenna 12. In step SR40, the control unit 20 outputs the attribute information to the management server S via the network communication control unit 18, and the management server S acquires the attribute information (attribute information acquisition unit). In addition, it is not restricted to storing attribute information in each mobile station tag T1-T3 in this way. That is, the identification information (tag ID; information corresponding to the attribute information) of each mobile station tag T2 and the corresponding attribute information of the protected person P2 may be stored in a separate database in association with each other. In this case, in step SC20, the tag ID is transmitted instead of the attribute information and received by the readers R1 to R4. In step SR40, the tag ID is output to the management server S. In the management server S, the tag ID is used as a key in the database. And corresponding attribute information is acquired (attribute information acquisition means).

  In step SC20, the attribute information is transmitted from the mobile station tag T2 in response to the transmission requests from the fixed station readers R1 to R4. However, the present invention is not limited to this. That is, the mobile station tag T2 continues to transmit attribute information voluntarily at regular time intervals, and the fixed station readers R1 to R4 receive the radio signals that are continuously transmitted, and based on this, the management server S performs corresponding processing. You may do it. Further, the attribute information of the mobile station tag T1 may be acquired in the same manner. Of course, the attribute information may be associated with the tag ID and held by the management server S.

  Thereafter, the process proceeds to step SS150, and the correlation between the attribute information prepared in advance and the alarm boundary distance (for example, the memory of the management server S) based on the attribute information (corresponding to the input signal described in each claim) acquired as described above. The corresponding alarm boundary distance is set with reference to FIG. The correlation referred to at this time may be the same as that shown in FIG.

  Subsequent steps SS50 and subsequent steps are the same as those in FIG.

  In this modified example, the appropriate alarm boundary distance can be automatically switched according to the attribute of the person to be protected P2, so that convenience is improved. The attribute classification of the guardian P2 is not limited to that shown in FIG. 16, and as described above, another age classification such as “old man” or “adult”, age, “male”, “female”, etc. It is good also as classification, such as the gender and the health condition of "sick person" and "healthy body".

(C-1) When performing navigation display up to the position of the person to be protected In other words, it is a case where navigation to the position of the person to be protected P2 is performed with respect to the parent P1. FIG. 25 is a diagram illustrating a display example on the display unit DP of the mobile station tag T1 when the alarm is issued (when the mobile station tag T2 is (A) in FIG. 10) in the present modification. 11 corresponds to FIG.

  As shown in FIG. 25, in this modification, on the display unit DP of the mobile station tag T1, from the position of the guardian P1 (position of the mobile station tag T1) to the position of the guardian P2 (position of the mobile station tag T2). Is displayed on the map using an arrow AR.

  FIG. 26 is a sequence diagram illustrating an example of transmission and reception of various signals transmitted and received between the management server S, the fixed station readers R1 to R4, the mobile station tag T1, and the mobile station tag T2 and the control operation in this modification example. It is a figure corresponding to the said FIG. 12, FIG. 13, etc. The same steps as those in FIG. 12 are denoted by the same reference numerals, and description thereof is omitted or simplified.

  26, in this sequence, step SS300 is newly provided after step SS50, and step SS210 ′ corresponding to each of the steps SS210, SR40, SR50, SP20, and SP30 in FIG. Step SR40 ', Step SR50', Step SP20 ', Step SP30' are provided.

  That is, in step SS50, when the distance calculated in step SS40 is equal to or greater than the alarm boundary distance and the determination is satisfied, the process proceeds to step SS300. In step SS300, a route setting process is performed from the navigation access route described above, that is, from the position of the guardian P1 to the position of the guardian P2 (see FIG. 27 for details). Thereafter, the process proceeds to step SS210 ′.

  In step SS210 ′, the CPU 21 of the management server S outputs an instruction signal to the fixed station readers R1 to R4 via the network communication control unit 26, as in step SS210 described above. At this time, in addition to the map information similar to step SS210, the position information of the mobile station tag T1 and the mobile station tag T2, and the predetermined alarm instruction, the access route information set (created) in step SS300 is also transmitted. In addition, an instruction signal is output (alarm generating means). The fixed station readers R1 to R4 check whether or not the instruction signal has been input in step SR40 ′ corresponding to step SR40. If the instruction signal is detected, in step SR50 ′ corresponding to step SR50, The radio unit 16 of the corresponding fixed station reader R1 to R4 sends the above map information, the position information of the mobile station tags T1 and T2, the alarm instruction, and the access to the mobile station tag T1 related to the guardian P1 via the reader antenna 12. Send route information.

  In the mobile station tag T1 related to the guardian P1, the presence / absence of the transmission signal is checked in step SP20 ′ corresponding to the step SP20, and the map information / position information / alarm in the radio unit 33 via the tag antenna 32 is checked. If reception of the instruction / access route information is detected, the map information received by the control unit 34 of the mobile station tag T1, the position information of the mobile station tags T1 and T2, in step SP30 ′ corresponding to step SP30, A display signal corresponding to the alarm instruction and access route information is generated and output to the display unit DP, the position of the mobile station tags T1 and T2 on the map is displayed, and the mobile station tag from the mobile station tag T1 on the map The route display up to T2 and the alarm message AL are displayed, and this flow is finished.

  FIG. 27 is a flowchart showing the detailed procedure of step SS300.

  In FIG. 27, in step SS310, based on the position detection result in step SS30 and the map information (including the location of the escalator ES and the display shelves ST1 to ST17 and the occupied area information), the mobile station tag T1 All paths that can be assumed up to the tag T2 are constructed.

  Thereafter, in step SS320, the route having the shortest distance is selected from all the routes constructed in step SS310, and this flow is terminated. Although a detailed description is omitted, the shortest route search is performed by using a method such as a genetic algorithm in addition to the well-known Warsal-Floyd method, Dijkstra method, A * (Aster) search, and the like. It is.

  In this modification, when the guardian P1 searches for the guardian P2, it is possible to access the guardian P2 smoothly and quickly using the navigation display on the display unit DP, further improving convenience. To do.

(C-2) When performing navigation display that accesses a plurality of guardians in ascending order of age. That is, in this modification, one guardian P1 has a plurality of guardians (in this example, movement This is a case of managing two persons (a protected person P2 possessing a station tag T2 and a protected person P3 possessing a mobile station tag T3). Then, when accessing to search for the two protected persons P2 and P3, a navigation display for accessing with a predetermined regularity (in this example, in descending order of age) is performed.

  FIG. 28 is a diagram illustrating a display example on the display unit DP of the mobile station tag T1 when the alarm is issued in the present modification, and corresponds to FIG. 11 and the like.

  In FIG. 28, as described above, in this modified example, in addition to the protected person P2 possessing the mobile station tag T2 (indicated by “children position (1)”), the protected person P3 possessing the mobile station tag T3. (Displayed by “Children's position (2)”), which are respectively displayed on the display part DP of the mobile station tag T1.

  In this example, the guardian P2 displayed in the “children position (1)” is smaller in age than the guardian P3 displayed in the “children position (2)”. From the position of P1 (the position of the mobile station tag T1), first, the position of the protected person P2 (the position of the mobile station tag T2) is accessed, and then the position of the protected person P3 (the position of the mobile station tag T3) is further accessed. Such a route is displayed on the map using the arrow AR.

  In order to give such a priority that the access order is earlier as the age is lower, in this modification, an attribute coefficient corresponding to the attribute information of the protected persons P2 and P3 is used. FIG. 29 is a diagram showing a table representing an example of the attribute coefficient setting.

  In FIG. 29, in this example, the smaller the attribute coefficient is, the higher the priority is, so that the attribute coefficient is 1 until the age of 3, the attribute coefficient is 2 for kindergarten children, the attribute coefficient is 3 for the elementary school lower grades, and the attribute coefficient is 4 for the upper elementary school grades. Is set to

  Such an attribute coefficient is acquired by the management server S as follows. As in the modified example (a-2) above, the guardian P1 designates the attributes corresponding to the mobile station tags T2 and T3 (in other words, the guarded persons P2 and P3) via the operation unit 36 of the mobile station tag T1. The corresponding attribute information is transmitted from the mobile station tag T1 to the fixed station reader R together with the distance detection radio signal (the flowchart is not shown), and the attribute information received by the fixed station reader R is input to the management server S. The corresponding attribute coefficient is acquired using the table stored in the memory 22 of the management server S or the like.

  The acquisition of the attribute coefficient is not limited to the above, and the attribute information (gender information and age information) stored in the mobile station tags T2 and T3 is read from the readers R1 to R4 as in the modification (b-2). The attribute information may be acquired by the management server S, and the corresponding attribute coefficient may be acquired using the table. Alternatively, the attribute coefficient itself may be stored in the mobile station tags T2 and T3.

  A sequence representing an example of transmission and reception of various signals and control operations between the management server S, the fixed station readers R1 to R4, the mobile station tag T1, and the mobile station tags T2 and T3 in this modification is shown in FIG. This is basically the same as the one shown (however, the mobile station tag T3 related to the protected person P3 is added), and the details of the detailed procedure of the navigation route setting process in step SS300 are different.

  FIG. 30 is a flowchart showing the detailed procedure of step SS300 of FIG. 26 in the present modification. In FIG. 30, first, in step SS330, an operator N for counting the order is initialized to 1.

  Thereafter, the process proceeds to step SS340, and the access route from the mobile station tag T1 to the mobile station tag T2 (or T3) having the Nth smallest attribute coefficient (1 to 4) calculated based on the attribute information as described above is obtained. To construct. Note that step SS340 and step SS210 ′ of FIG. 26 described above constitute route information generation means described in each claim.

  In step SS350, it is determined whether or not the access route to all the mobile station tags T2 and T3 related to the protected persons P2 and P3 has been constructed. If a path for sequentially accessing all the mobile station tags T2 and T3 related to the guardian P2 is established starting from the mobile station tag T1 related to the guardian P1, the determination is satisfied, and this flow ends. If the mobile station tag T2 (or T3) for which the access path has not been established still remains, the determination is not satisfied, the process returns to step SS340, and the same procedure is repeated.

  In this modification, the guardian P1 can search and access the guardians P2 and P3 quickly and smoothly according to the arrow AR (representing the route) displayed on the display unit DP without hesitation. it can. In addition, display is performed so as to access a guardian who has a high search priority (in this example, a guardian P2 having a small age) in the previous order. As a result, since it is possible to access the protected person to be searched and protected first as soon as possible, the convenience can be further improved. In addition to the above, attributes such as elderly people and junior high school students may be provided as attribute categories for prioritizing access. Furthermore, the female guardian may be in the order before the male guardian, or the sick guardian may be in the order ahead of the healthy guardian.

(C-3) When performing a navigation display in which access is made sequentially from a guardian in a caution area In (c-2) above, regularity when performing route setting to access a plurality of guardians As a result, an access route is set so that the younger person P2 is given priority to access in the previous order. On the other hand, in this modified example, navigation display for preferentially accessing the protected person P2 in the area requiring attention D (in this example, the vicinity area of the escalator ES similar to the above) is performed in the previous order. In this modification, the attribute coefficient is used (by setting it in another mode) in order to set the priority order for the access order (described later).

  FIG. 31 is a diagram illustrating a display example on the display unit DP of the mobile station tag T1 when the alarm is issued in the present modification, and corresponds to FIG. 11 and the like.

  In FIG. 31, as described above, in this modification, the protected person P2 who has the mobile station tag T2 (indicated by “child position (1)”) and the protected person P3 who has the mobile station tag T3 ( Among the “children position (2)”), the guardian P3 displayed in the “children position (2)” is located in the attention area D near the escalator ES. As a result, access is first made from the position of the guardian P1 (position of the mobile station tag T1) to the position of the guardian P3 (position of the mobile station tag T3), and then the position of the guardian P2 (mobile station tag T2). A route for accessing to the position of () is displayed on the map using the arrow AR.

  A sequence representing an example of transmission and reception of various signals and control operations between the management server S, the fixed station readers R1 to R4, the mobile station tag T1, and the mobile station tags T2 and T3 in this modification is shown in FIG. This is basically the same as the one shown (however, the mobile station tag T3 related to the protected person P3 is added), and the details of the detailed procedure of the navigation route setting process in step SS300 are different.

  FIG. 32 is a flowchart showing the detailed procedure of step SS300 of FIG. 26 in the present modification, and corresponds to FIG. Steps equivalent to those in FIG. 30 are denoted by the same reference numerals, and description thereof is omitted or simplified.

  32, first, in step SS370, similarly to step SS150 of FIG. 21 described above, based on the position information of mobile station tags T2 and T3 detected in step SS30, the position of mobile station tag T2 or T3 (protected person P2 Alternatively, it is determined whether or not the position of P3 is within the attention area D.

  If the position of the person to be protected P2 (or P3) is outside the attention area D, the determination at step SS370 is not satisfied and the routine proceeds to step SS380, where the attribute coefficient is set to a normal value (2 in this example). If the position of the person to be protected P2 is within the attention area D, the determination at step SS370 is satisfied and the routine proceeds to step SS390, where the attribute coefficient is set smaller than the normal value (1 in the above example). When step SS380 or step SS390 is completed, the process proceeds to next step SS330.

  Henceforth, step SS330-step SS360 are the same as that of the said FIG. That is, after the operator N is initialized to 1 in step SS330, an access route to the mobile station tag T2 (or T3) having the Nth smallest attribute coefficient (here, 1 or 2) is constructed in step SS340. Note that step SS340 and step SS210 ′ of FIG. 26 described above constitute route information generation means described in each claim. Then, in step SS350, it is determined whether or not access paths to all the mobile station tags T2 and T3 have been constructed. If there is a mobile station tag T2 (or T3) in which no access path is constructed, the determination is satisfied. If not, the process returns to step SS340 and the same procedure is repeated. As described above, since the mobile station tag T existing in the attention area D has an attribute coefficient smaller than that of the mobile station tag T outside the attention area D, it always has priority in order. An access route will be established.

  Also in this modified example, as in the modified example of (c-2) above, the guardian P1 is at a loss with respect to each of the protected persons P2 and P3 according to the arrow AR (representing the route) displayed on the display unit DP. Search and access quickly and smoothly. In addition, display is performed such that a protected person with high search priority (in this example, a protected person P2 existing in the attention area D) is accessed in the previous order. As a result, since it is possible to access the protected person to be searched and protected first as soon as possible, the convenience can be further improved.

  In addition, as another route construction method for a plurality of protected persons P2 and P3, a route setting in which the distance of the entire process from the guardian P1 to the completion of access to all the protected persons P2 and P3 is minimized. May be performed. In this case, the search route is the shortest for the guardian P1, and thus the physical labor burden can be reduced.

  In the above description, the case where only one guardian P1 is associated with one guardian P2 (or a plurality of guardians P2 and P3) is described as an example, but the present invention is not limited thereto. That is, the present invention can be applied even when there are a plurality of guardians. In this case, it is only necessary to set the above alarm boundary distance for the mobile station tag related to each guardian, and to display the alarm on each mobile station tag when the guardian becomes farther than this. .

  Further, by applying this, when there are two guardians, the presence / absence of an alarm can be determined in consideration of the position information of each guardian and the position information of the guardian. That is, for example, if the guardian is located between two guardians even if the alarm boundary distance has been exceeded (eg when the elongated passage is elongated and walking with a parent and child), an alarm is displayed. This is possible. Conversely, when the number of guardians is one, it may be possible to measure only the distance between the guardian and the guardian without detecting the position of the guardian. In this case, an alarm display may be performed only depending on whether the measured distance exceeds the alarm boundary distance (the position of the person to be protected is irrelevant).

  In the above, the case where the present invention is applied to a store floor has been described as an example. However, the present invention is not limited to this and may be applied to other buildings. In addition, the scope of application may be further expanded to apply to an entire administrative division or other vast land (including theme parks and exposition venues). In such a case, the above-described area D requiring attention can be set, for example, in a peripheral area of a station (prone to getting lost due to a large number of people), a vicinity area of play equipment (risk when approaching), and the like.

  In addition, the map information is described as an example in the case where the management server S stores the map information in advance. However, the management server S further acquires an appropriate server (a so-called web server) outside the system. You may make it do.

  In addition to those already described above, the methods according to the above-described embodiments and modifications may be used in appropriate combination.

  In addition, although not illustrated one by one, the present invention is implemented with various modifications within a range not departing from the gist thereof.

It is explanatory drawing which shows roughly the whole structure of one Embodiment of the guardian management system of this invention. It is a functional block diagram showing the functional structure of a guardian management system. It is explanatory drawing showing the possession aspect of the mobile station tag for to-be-protected persons. It is a perspective view showing the external appearance structure of the cart which a guardian uses. It is a top view showing the detailed structure of the mobile station tag for guardians. It is a figure explaining the principle of the method of detecting the position of a mobile station tag. It is explanatory drawing showing the state in which the guardian's eyes have reached the to-be-protected person enough. It is explanatory drawing showing the state where a guardian's eyes do not reach a guardian enough. It is explanatory drawing showing the state which the guardian lost sight of the to-be-protected person. It is a figure showing an example of the alarm boundary distance. It is a figure showing the example of a display of the guardian's mobile station tag at the time of alerting. It is a sequence diagram showing an example of transmission and reception of various signals and control operations between a management server, a fixed station reader, a guardian mobile station tag, and a guardian mobile station tag. In a modified example in which the guard boundary is manually set by the guardian, the transmission and reception of various signals and control operations among the management server, fixed station reader, guardian mobile station tag, guardian mobile station tag It is a sequence diagram showing an example. It is a flowchart showing the detailed procedure of step SP100 of FIG. It is a figure showing the example of a display of the mobile station tag for guardians at the time of alarm alerting. 10 is a table showing correspondence between attributes of a guardian and an alarm boundary distance set as a correlation in a modification in which the guardian manually inputs the attributes of the guardian and sets the alarm boundary distance. It is a flowchart showing the detailed procedure of step SP100 of FIG. It is a figure showing the example of a display of the mobile station tag for guardians at the time of alarm alerting. It is a figure showing an example of the variable setting of an alarm boundary distance in the modification in which a management server changes an alarm boundary distance automatically according to a to-be-protected person's position. It is a sequence diagram showing an example of transmission and reception of various signals and control operations between a management server, a fixed station reader, a guardian mobile station tag, and a guardian mobile station tag. It is a flowchart showing the detailed procedure of step SS100 of FIG. It is a figure showing the example of a display by the guardian's mobile station tag at the time of alarm alerting. It is explanatory drawing which represented notionally the example of the memory | storage information of the IC circuit part of a mobile station tag in the modification which changes an alarm boundary distance automatically according to a guardian's attribute. It is a sequence diagram showing an example of transmission and reception of various signals and control operations between a management server, a fixed station reader, a guardian mobile station tag, and a guardian mobile station tag. In the modification which performs the navigation display to a to-be-protected person position, it is a figure showing the example of a display of the guardian's mobile station at the time of alerting. It is a sequence diagram showing an example of transmission and reception of various signals and control operations between a management server, a fixed station reader, a guardian mobile station tag, and a guardian mobile station tag. It is a flowchart showing the detailed procedure of step SS300 of FIG. It is a figure showing the example of a display of the guardian's mobile station tag at the time of warning alerting | reporting in the modification which performs a navigation display which accesses a some protector in order with small age. It is a table showing an example of attribute coefficient setting. It is a flowchart showing the detailed procedure of step SS300 of FIG. It is a figure showing the example of a display in the display part of the mobile station tag for guardians at the time of alarm alerting. It is a flowchart showing the detailed procedure of step SS300 of FIG.

Explanation of symbols

1 Parental control system 12 Reader antenna (third antenna means)
32 Tag antenna (first antenna means, second antenna means)
36 Operation part (operation means)
37 Connector (charging means)
39 Power supply (charging means)
DP display (display means)
P1 Parents R1-4 Fixed station leader (base station)
T1 mobile station tag (first mobile station)
T2 mobile station tag (second mobile station)
T3 mobile station tag (third mobile station)

Claims (15)

A first mobile station comprising first antenna means for transmitting and receiving information, and capable of moving in a predetermined movable area together with a guardian;
A storage unit that stores information in advance and a second antenna unit that transmits and receives information, and is associated with the first mobile station in advance, and is movable at least in a predetermined movable area together with a protected person protected by the guardian One second mobile station;
A third station means for transmitting and receiving information to and from the first mobile station and the second mobile station by wireless communication, and a base station fixedly arranged at a known position;
A guardian management system for the guardian to manage the guardian,
Based on the radio signal transmitted from the first antenna means and the second antenna means of the first mobile station and the second mobile station and received by the third antenna means of the base station, the first mobile station and the second mobile station 2 position detecting means for detecting the position of the mobile station;
Distance detecting means for detecting a distance between the first mobile station and the second mobile station based on a detection result of the position detecting means;
Determination means for determining whether the distance detected by the distance detection means is equal to or greater than a predetermined alarm distance;
An alarm generation means for generating and outputting a corresponding alarm instruction signal when the determination of the determination means is satisfied;
The first mobile station is
The detection result of the position detecting means included in the radio wave signal transmitted from the third antenna means of the base station and received by the first antenna means in response to the warning instruction signal output from the alarm generating means, and A guardian management system comprising display means for displaying a corresponding alarm on the basis of map information and displaying the positions of the first mobile station and the second mobile station on a map. 2. The guardian management system according to claim 1, further comprising registration means for registering a pair relationship between the second mobile station and the first mobile station when the second mobile station is attached to the first mobile station. . An alarm distance setting means for variably setting the alarm distance according to an input signal;
The determination means includes
3. The guardian management system according to claim 2, wherein it is determined whether or not the distance detected by the distance detection means is equal to or greater than the warning distance set by the warning distance setting means. The alarm distance setting means includes
4. The guardian management system according to claim 3, wherein the alarm distance is variably set according to position information of the second mobile station detected by the position detecting means as the input signal. The alarm distance setting means includes
When the position of the second mobile station is within a predetermined area, the warning distance is set short, and when the position of the second mobile station is outside the predetermined area 5. The guardian management system according to claim 4, wherein the alarm distance is set longer. Based on the radio signal transmitted from the second antenna means of the second mobile station and received by the third antenna means of the base station, the second mobile station stored in the storage unit of the second mobile station Having attribute information acquisition means for acquiring corresponding attribute information of the protected person,
The alarm distance setting means includes
The guardian management system according to claim 3, wherein the alarm distance is variably set according to the attribute information of the protected person acquired by the attribute information acquisition means as the input signal. The first mobile station includes an operation means that allows the guardian to input a predetermined setting.
Operation information corresponding to the operation of the guardian on the operation means of the first mobile station based on the radio signal transmitted from the first antenna means of the first mobile station and received by the third antenna means of the base station Operation information acquisition means for acquiring
The alarm distance setting means includes
The guardian management system according to claim 3, wherein the alarm distance is variably set according to the operation information acquired by the operation information acquisition means as the input signal. The operation information acquisition means includes
As the operation information, obtain the distance value information input by the guardian with the operation means of the first mobile station,
The alarm distance setting means includes
8. The guardian management system according to claim 7, wherein the alarm distance is set in correspondence with the distance value information acquired by the operation information acquisition means. Correlation storage means for storing the correlation between the content of the operation information and the value of the alarm distance to be set correspondingly,
The alarm distance setting means includes
8. The guardian management system according to claim 7, wherein the alarm distance is set according to the correlation stored in the correlation storage unit based on the operation information acquired by the operation information acquisition unit. The operation information acquisition means includes
As the operation information, acquire the attribute information of the guardian input by the guardian with the operating means of the first mobile station,
The alarm distance setting means includes
10. The guardian management system according to claim 9, wherein the alarm distance is set according to the correlation stored in the correlation storage unit based on the attribute information acquired by the operation information acquisition unit. The operation information acquisition means includes
As the operation information, obtain the mode selection information input by the guardian with the operation means of the first mobile station,
The alarm distance setting means includes
10. The guardian management system according to claim 9, wherein the alarm distance is set according to the correlation stored in the correlation storage unit based on the mode selection information acquired by the operation information acquisition unit. . Based on the detection result of the position detection means and the map information, based on a predetermined regularity related to the access order to the plurality of second mobile stations, from the first mobile station to the plurality of second mobile stations. Route information generating means for generating and outputting route information for sequentially accessing each of the
The display means of the first mobile station is
Based on the radio signal transmitted from the third antenna unit of the base station according to the route information output from the route information generating unit and received by the first antenna unit, the vehicle departs from the first mobile station and The guardian management system according to any one of claims 3 to 11, wherein route display is performed so as to arrive at each second mobile station in order according to a predetermined regularity. The route information generating means
13. The guardian according to claim 12, wherein the route information is generated and output so that a path of an entire process for accessing all of the plurality of second mobile stations from the first mobile station is minimized. Management system. The route information generating means
Generating and outputting path information so that a second mobile station having a higher priority assigned to each of the plurality of second mobile stations is accessed from the first mobile station in an earlier order. The guardian management system according to claim 12. The first mobile station is
The guardian management system according to any one of claims 2 to 14, further comprising charging means for charging the second mobile station in a mounted state.

Images