JP2018147070A - Determination device, communication device, management device, and communication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a determination device capable of more appropriately determining whether or not a watching target is in a predetermined position range.SOLUTION: A determination device comprises a reception unit for receiving radio waves carrying information including an identifier of a communication device, that are emitted by a communication device 201 being within a predetermined distance from a watching target regardless of presence/absence of movement of the watching target to derive a reception radio wave intensity of the radio waves; a determination unit for performing a first determination of whether or not a position of the watching target is in a predetermined position range from the reception radio wave intensity and the identifier; and an output unit for outputting a determination result of the first determination.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a determination apparatus that determines a position of a person or an object.

  Due to a person's trap, lost child, lost pet, theft of an object, etc., the location of the person or the like may be out of the desired range of the person. In such a case, in order to prevent the spread of possible damages such as accidents or disappearances of the person, the person who watches them quickly notices that the person or object is no longer in the prescribed range. It is important to get.

  As a method of watching whether or not the location of the watch is within a predetermined range, a method of keeping the GPS in the watch target and watching the person or object by the positional information sent by the GPS can be considered. Here, “GPS” is an abbreviation for “Global Positioning System”.

  Patent Document 1 includes a server, a plurality of short-range wireless communication devices, a setting terminal set by a watcher who confirms the location of the person being watched over, and a mobile terminal possessed by the person being watched over. Disclose the watch system.

  Patent Document 2 discloses an at-home determination device that determines whether a user is at home or absent based on a comparison between the current power usage status in the user's house and the past power usage status. To do.

JP 2014-146999 A JP 2006-126713 A

15th Smart Meter System Study Group, “Problems and Responses Related to Promotion of Smart Meter Introduction”, Ministry of Economy, Trade and Industry, [Search January 31, 2017], Internet, (http: //www.meti.go) .Jp / committee / summary / 0004668 / pdf / 015 — 03 — 00.pdf)

  The contents described in the above-mentioned patent documents have a problem that it is impossible to appropriately recognize whether or not a subject to be watched over, such as a human trap or a lost child, a lost pet, or a theft of an object.

  An object of this invention is to provide the determination apparatus etc. which can perform more appropriately determination about whether the watching target exists in a predetermined position range.

  The determination device of the present invention receives a radio wave carrying information including an identifier of the communication device, which is emitted by a communication device within a predetermined distance from the watching target regardless of whether the watching target is moved, A receiving unit for deriving a received radio wave intensity of a radio wave; a determining unit for performing a first determination as to whether the position of the watching target is within a predetermined position range from the received radio wave intensity and the identifier; and the first determination And an output unit for outputting the determination result.

  The determination device or the like of the present invention can more appropriately determine whether the watching target is in a predetermined position range.

It is a conceptual diagram showing the example of a structure of the communication system of 1st embodiment. It is a conceptual diagram showing the structural example of a communication apparatus. It is a conceptual diagram showing the structural example of a management apparatus. It is a conceptual diagram showing the example of a structure of a communication apparatus. It is a conceptual diagram showing the structural example (the 1) of a communication apparatus provided with a mounting part. It is a conceptual diagram showing the structural example (the 2) of a communication apparatus provided with a mounting part. It is a figure (the 1) showing the time change example (the 1) of the position of a communication apparatus. It is the figure (the 2) showing the time change example (the 1) of the position of a communication apparatus. It is a figure (the 1) showing the time change example (the 2) of the position of a communication apparatus. It is the figure (the 2) showing the time change example (the 2) of the position of a communication apparatus. It is a conceptual diagram showing the example of a time change of 1st intensity | strength. It is a conceptual diagram showing the example of a processing flow of the process which the process part of a communication apparatus performs. It is a conceptual diagram showing the example of a processing flow of the transmission process of the measurement information which the process part of a communication apparatus performs. It is a conceptual diagram showing the process flow example of the process regarding the radio wave emitted from the radio | wireless machine which the process part of a communication apparatus performs. It is a conceptual diagram showing the example of a processing flow of a process of S263. It is a conceptual diagram showing the 1st example of a process of S211. It is a conceptual diagram showing the 2nd example of a process of S211. It is a conceptual diagram showing the 3rd example of a process of S211. It is a conceptual diagram showing the 4th example of a process of S211. It is a figure showing the example of a process of S213. It is a key map showing the 1st example of processing of S215. It is a conceptual diagram showing the 2nd example of a process of S215. It is a conceptual diagram showing the 1st example of a process of S217. It is a conceptual diagram showing the 2nd example of a process of S217. It is a conceptual diagram showing the example of a processing flow of a process of S265. It is a conceptual diagram showing the example of a process of S301. It is a conceptual diagram showing the storage process of the measurement information which the process part of a management apparatus performs. It is a conceptual diagram showing the example of a processing flow of the process accompanying reception of B notification which the process part of a management apparatus performs. It is a conceptual diagram showing the example of a processing flow of the process which the process part of a management apparatus performs regarding reception of A notification. It is a conceptual diagram showing the example of a process of S343. It is a conceptual diagram showing the example of a process of S351. It is a conceptual diagram showing the 1st example of a process of S362. It is a conceptual diagram showing the 2nd example of a process of S362. It is a conceptual diagram showing the structural example of the communication system of 2nd embodiment. It is a conceptual diagram showing the structural example of a 2nd communication apparatus. It is a figure showing the time change example (the 1) of the position of a communication apparatus. It is a conceptual diagram showing the time change example of 1st intensity | strength and 3rd intensity | strength. It is a conceptual diagram showing the process example (the 1) of the 1st determination which the process part of the communication apparatus of 2nd embodiment performs. It is a conceptual diagram showing the process example (the 2) of the 1st determination which the process part of the communication apparatus of 2nd embodiment performs. It is a conceptual diagram showing the process example (the 1) of the 2nd determination which the process of the communication apparatus of 2nd embodiment performs. It is a conceptual diagram showing the process example (the 2) of the 2nd determination which the process of the communication apparatus of 2nd embodiment performs. It is a block diagram showing the minimum structure of the determination apparatus of this invention.

<First embodiment>
In the first embodiment, the position of the monitoring target is determined by communication performed between the communication device that transmits the usage amount information of the supply target to the management device by communication and the communication device held by the monitoring target. It is embodiment regarding a system. In each embodiment, “holding” by the watching target means that the holding target is within a predetermined distance from the watching target regardless of whether or not the watching target is moved.
[Configuration and operation]
FIG. 1 is a conceptual diagram illustrating a configuration of a communication system 401 that is an example of the communication system according to the first embodiment.

  The communication system 401 includes a communication device 101, a communication device 201, and a management device 301.

  The communication device 201 is held by a person or object to be watched over. The holding includes holding by installation or wearing on the person or object to be watched over.

  The communication device 201 holds the ID of the communication device 201. Here, ID is an abbreviation for Identifier. In the following, the notation “ID” refers to an identifier used in common in the communication system 401.

  The communication device 201 emits radio waves in a predetermined wireless band including the ID of the communication device 201 to the surrounding space at a predetermined timing. The timing is, for example, one second interval. In addition, the wireless band is a wireless band that can be received by the communication apparatus 101. The radio band is, for example, a 920 MHz band.

  The communication apparatus 101 measures the usage amount by the user to be supplied supplied to the user. The supply target is, for example, electric power supplied from an electric company, tap water supplied from a water company, or gas supplied from a gas company.

  The communication apparatus 101 sends measurement information including the measured usage amount and the ID of the communication apparatus 101 to the management apparatus 301 through the communication line 501a at a predetermined interval. The interval is, for example, 30 minutes. As the communication line 501a, for example, a PLC line, a multi-hop line using a 920 MHz band, a radio telephone line, or a combination thereof can be used. Here, PLC is an abbreviation for Power Line Communication.

  The communication device 101 can transmit and receive radio waves in a predetermined frequency band. The frequency band is a frequency band related to radio waves transmitted from the communication device 201. The frequency band is, for example, the 920 MHz band.

  The communication apparatus 101 holds the ID of the communication device 201 in advance.

  When receiving a radio wave in the frequency band, the communication apparatus 101 acquires an ID included in the reception information and a received radio wave intensity (also referred to as a received electric field intensity) related to the reception. Then, the communication apparatus 101 determines whether the acquired ID is the ID of the communication device 201.

  When the communication device 101 determines that the ID included in the reception information is the ID of the communication device 201, the communication device 101 determines the position of the person or object to be watched from the received radio wave intensity. The determination is a determination as to whether or not the person or object to be watched is (is) in a predetermined position range. For example, if the person to be watched over is a person who should be in a certain building, the determination is a determination as to whether the person is in the building. Also, for example, if the object to be watched over is an object that should be in a certain building, the determination is a determination as to whether the object is in the building.

  Detailed examples of the determination will be described later in [Operation Example] and [Processing Flow Example].

  In the following, when the communication apparatus 101 determines that the ID included in the received information is the ID of the communication device 201, the received radio wave intensity of the radio wave carrying the received information is referred to as "first intensity". To. When the communication device 101 determines that the ID included in the received information is not the ID of the communication device 201 corresponding to the communication device 101, the received radio wave intensity of the radio wave carrying the received information is “second strength”. I will say. Here, “corresponding to the communication device 101” means, for example, the case where the owner, the administrator, the user, or the like of the communication device 201 and the communication device 101 are the same. The same applies to the following description.

  When the communication device 101 determines that the person or object to be watched is not (is not) in a predetermined location, the communication device 101 sends an A notification indicating that to the management device 301. The A notification includes the ID of the communication device 101 and the ID of the communication device 201.

  If the communication device 101 determines that the above-described ID is not the ID of the communication device 201, the communication device 101 determines whether the second strength is equal to or greater than a predetermined threshold value. That the second intensity is equal to or greater than the predetermined threshold indicates that another wireless device similar to the communication device 201 has approached the communication device 101. If the communication device 101 determines that the second intensity is equal to or greater than the threshold value, the communication device 101 sends a B notification, which is a notification indicating that, to the management device 301. The B notification includes the ID of the communication device 101 and the ID of the communication device.

  The communication device 101 is, for example, a smart meter that configures an AMI (Advanced Metering Infrastructure) network. The smart meter is described in Non-Patent Document 1, for example. In that case, the communication apparatus 101 is installed outdoors and can communicate with a HEMS or the like installed in a building managed by the user through a so-called B route. Here, HEMS is an abbreviation for Home Energy Management System. The B route is described in Non-Patent Document 1, for example.

  Furthermore, the radio band used for B route communication is, for example, the 920 MHz band. Therefore, when the radio wave emitted by the communication device 201 is in the 920 MHz band, the communication device 101 that is a smart meter can use a communication unit used for B-route communication for receiving the radio wave.

  When the management apparatus 301 receives the measurement information from the communication apparatus 101, the management apparatus 301 records the set of the usage information, the ID of the communication apparatus 101, and the reception time of the measurement information included in the measurement information. And the management apparatus 301 performs a predetermined | prescribed process using the usage-amount information recorded in the past, ID of the communication apparatus 101, and the information of the reception time of the said measurement information as needed. The process is, for example, a process for charging a user with a usage fee corresponding to the usage amount.

  The management apparatus 301 communicates with the communication apparatus 101 and other communication apparatuses similar to the communication apparatus 101 (not shown in FIG. 1) through the communication line 501a.

  Each of the other communication devices is also a combination of the usage amount information of the supply target and the respective IDs (hereinafter referred to as the communication device 101) measured by the user to whom each of the other communication devices is assigned. , "First information") is sent to the management apparatus 301.

  In each of the other communication devices, as in the case of the communication device 101, the second intensity of the radio wave emitted by the communication device other than the communication device associated with the communication device to the wireless space has exceeded a predetermined threshold value. If you are doing the following: That is, each notifies the management apparatus 301 via the communication line 501a that the second intensity of the radio wave has exceeded a predetermined threshold and the communication device ID included in the received information. In the following, it is assumed that the above-mentioned B notification includes those notifications sent from the other communication devices to the management device 301.

  The management device 301 receives the ID of the communication device included in the B notification sent by each of the communication device 101 and the other communication devices, the ID of the communication device that sent the B notification, and the time when the B notification was received. Information (hereinafter referred to as “second information”) is stored in the database.

  In the following, the communication device ID is described as “communication device ID”, and the communication device ID is described as “communication device ID”.

  When the management device 301 receives the A notification from the communication device 101, the management device 301 searches the second information including the communication device ID included in the A notification from the second information stored in the database. To do. Then, when searching for the second information including the communication device ID, the management device 301 identifies the position of the communication device from the communication device ID included in the second information. Here, it is assumed that the management device 301 holds position information of each communication device. The position information is information indicating correspondence between each communication apparatus ID and the position of the communication apparatus corresponding to the communication apparatus ID.

  Then, the management apparatus 301 derives the position of the communication device 201 from the identified position of the communication apparatus. The management apparatus 301 also sends a C notification, which is a notification including the derived location information of the communication device 201, to the notification destination 601 through the communication line 501b. The communication line 501b is a communication line connected to the Internet, for example. The C notification is, for example, notification of an e-mail sent to a mobile terminal or personal computer that is a notification destination. Further, the user of the notification destination is a person who watches over the watching target holding the communication device 201.

  The case where the C notification does not include the position information of the communication device 201 can also be assumed.

  FIG. 2 is a conceptual diagram illustrating a configuration of a communication apparatus 101a that is an example of each of the communication apparatus 101 illustrated in FIG. 1 and the other communication apparatuses described above.

  The communication apparatus 101a includes a measurement unit 121, communication units 116a and 116b, processing units 106a and 106b, a creation unit 111, and a recording unit 126.

  The measurement unit 121 measures the usage amount of the supply target described above. Then, the measurement unit 121 causes the sequential recording unit 126 to record measurement information including usage amount information representing the measured usage amount. The measurement unit 121 is an integrating wattmeter when the supply target is electric power. The measuring unit 121 is an integrated water meter when the supply target is tap water. The measurement unit 121 is an integrated gas meter when the supply target is gas.

  The processing unit 106a reads the measurement information recorded in the recording unit 126 from the recording unit 126 at a predetermined timing. Then, the processing unit 106a includes the ID of the communication device 101a read from the recording unit 126 in the measurement information. Then, the processing unit 106a sends the measurement information to the management apparatus 301 illustrated in FIG. 1 via the communication unit 116a.

  Further, the processing unit 106a causes the communication unit 116a to send the information created by the creating unit 111 to the management apparatus 301 illustrated in FIG. 1 in accordance with an instruction from the creating unit 111.

  The communication unit 116a sends information instructed by the processing unit 106a to the management apparatus 301 illustrated in FIG. The communication unit 116a also sends the information received from the management device 301 to the processing unit 106a.

  The communication unit 116b receives a predetermined radio wave belonging to the same frequency band as the radio wave emitted by the communication device 201 illustrated in FIG. The radio wave received by the communication unit 116b may be a radio wave transmitted by the communication device 201, or may be a radio wave transmitted by another communication device not shown in FIG.

  And the communication part 116b calculates | requires the received radio wave intensity | strength of the said radio wave, when the said radio wave is received. If the ID can be acquired from the radio wave, the communication unit 116b acquires the ID. When the ID can be acquired, the communication unit 116b sends the combination of the received radio wave intensity and the acquired ID to the processing unit 106b.

  The processing unit 106b determines whether the ID transmitted from the communication unit 116b is the ID of the communication device 201 illustrated in FIG. The determination is a determination as to whether the ID is the ID of the communication device 201 that is a communication device corresponding to the communication device 101a.

  When the processing unit 106b determines that the ID is the ID of the communication device 201, the processing unit 106b determines the position of the watching target from the first intensity or the temporal change amount of the first intensity. This determination is a determination as to whether or not the watching target is in a predetermined position range. Moreover, the said time change amount is a value showing the grade of the change of 1st intensity | strength with progress of time. The amount of time change is, for example, the amount of change per unit time of the first intensity or the slope of the time change of the first intensity.

  A detailed example of the determination will be described later in [Operation Example] and [Processing Flow Example].

  When it is determined that the watching target is in the predetermined position range, the processing unit 106b does not perform any special operation other than the above.

  On the other hand, when the processing unit 106b determines that the watching target is not in the predetermined position range, the processing unit 106b causes the creation unit 111 to create notification information. The notification information includes information indicating that the watching target is not in the predetermined position range, the ID of the communication device 101a, and the ID of the communication device 201. The notification information is information for performing the A notification described above.

  On the other hand, when the processing unit 106b determines that the ID is not the ID of the communication device 201 that is a communication device corresponding to the communication device 201a, the processing unit 106b determines whether the second strength is equal to or greater than a predetermined threshold. If the processing unit 106b determines that the second intensity is equal to or greater than a predetermined threshold, the processing unit 106b causes the creation unit 111 to create notification information indicating that a communication device other than the communication device 201 has approached. The notification information includes the ID of the communication device 101a and the communication device ID related to the reception information. The notification information is information for performing the B notification described above.

  The creation unit 111 creates notification information in accordance with an instruction from the processing unit 106b. Then, the creation unit 111 sends the created notification information to the processing unit 106a. The processing unit 106a causes the communication unit 116a to send the notification information to the management device 301 illustrated in FIG.

  The recording unit 126 holds in advance the ID of the communication device 101a and the ID of the communication device 201 illustrated in FIG.

  The recording unit 126 also stores programs and information used by the measurement unit 121, the communication units 116a and 116b, the processing units 106a and 106b, and the creation unit 111 for performing the above-described processing.

  The recording unit 126 also records information instructed by each of the measurement unit 121, the communication units 116a and 116b, the processing units 106a and 106b, and the creation unit 111. The recording unit 126 also sends the information instructed by each of the measurement unit 121, the communication units 116a and 116b, the processing units 106a and 106b, and the creation unit 111 to any one of these destinations according to the instruction.

  1 is supplied with power necessary for the operation of each configuration from a power source (not shown).

  2 includes the measurement unit 121, the communication device according to the present embodiment does not necessarily include the measurement unit. The above description of the measurement unit 121, the processing unit 106a, and the recording unit 126 in the communication apparatus according to the present embodiment that does not include a measurement unit is obtained by replacing “measurement unit 121” with “external measurement device”.

  FIG. 3 is a conceptual diagram illustrating a configuration of a management apparatus 301a that is an example of the management apparatus illustrated in FIG.

  The management apparatus 301a is a server, for example.

  The management apparatus 301a includes a communication unit 316a, a processing unit 306, a recording unit 321, a creation unit 307, and a communication unit 316b.

  The management apparatus 301a communicates with the communication apparatus 101 and the other communication apparatuses not shown in FIG. 1 via the communication line 501a shown in FIG.

  The communication unit 316a receives the above-described measurement information, A notification, and B notification sent by the communication device 101 and the other communication device. The communication unit 316a sends each of the received measurement information, the A notification, and the B notification to the processing unit 306 in combination with the time at which they are received.

  The processing unit 306 includes the first information that the recording unit 321 includes, in the measurement unit sent from the communication unit 316a, the first information that combines the usage amount and the communication device ID and the time when the measurement device is received. Store in the database. The processing unit 306 also includes the second information that is included in the B notification sent from the communication unit 316a and that includes the second information that is combined with the communication device ID and the communication device ID and the time when the B notification is received. Store in the second database.

  The processing unit 306 performs processing such as charging processing for each communication device ID from the first information stored in the first database.

  When the A notification is sent from the communication unit 316a, the processing unit 306 adds the communication device ID included in the A notification to the communication device ID included in the second information stored in the second database. Determine if there is a match.

  If the processing unit 306 determines that the communication device ID included in the second information matches the communication device ID included in the A notification, the processing unit 306 determines that the second information matches. From the above, the position of the communication device with the communication device ID included in the notification A is specified. The processing unit 306 identifies the position of the communication device from the communication device ID included in the second information determined to match and the position information of the communication device that holds each communication device ID. The position information is stored in advance by the recording unit 321. An example of processing in which the processing unit 306 identifies the position of the communication device will be described later in the section “Example of processing flow”.

  Then, the processing unit 306 causes the creation unit 307 to create the above-described C notification including information indicating the position of the identified communication device, and sends the notification to the notification destination via the communication unit 316b.

  When the communication unit 316b sends the C notification created by the creation unit 307, the processing unit 306 designates a notification destination of the C notification to the communication unit 316b.

  The notification destination is stored in the recording unit 321.

  The processing unit 306 may select a notification destination from a plurality of notification destination candidates related to the C notification stored in the recording unit 321. The processing unit 306 performs the selection as follows, for example.

  It is assumed that the recording unit 321 holds two notification destinations, a first notification destination and a second notification destination, for an A notification including a certain communication device ID. The first notification destination is a notification destination for the case where the user of the notification destination device is at home. The first notification destination is, for example, a personal computer installed in the user's house. The second notification destination is used when the user of the notification destination device is not at home. The second notification destination is, for example, the user's mobile phone.

  When the notification A is received from the communication unit 316a, the processing unit 306 first includes a communication device ID that matches the communication device ID included in the A notification from the first database held by the recording unit 321. Read information. The first information is information at the time of reception close to the reception of the A notification. The processing unit 306 may read a plurality of pieces of first information.

  The processing unit 306 determines whether the user is at home or going out from the read first information. If the processing unit 306 determines that the user is at home, the processing unit 306 selects the first notification destination as the notification destination of the C notification. On the other hand, when determining that the user is out, the processing unit 306 selects the second notification destination as the notification destination of the C notification.

  The creation unit 307 creates a C notification according to an instruction from the processing unit 306. The C notification is typically an email notification. The creation unit 307 sends the created C notification to the communication unit 316b.

  The communication unit 316b sends the C notification sent from the creation unit 307 to the aforementioned notification destination through the communication line 501b shown in FIG.

  The recording unit 321 holds the ID of the management apparatus 301a and the IDs of the communication apparatus 101 connected via the communication line 501a shown in FIG. 1 and the other communication apparatuses described above.

  The recording unit 321 also holds position information indicating the correspondence between the IDs of the communication device 101 and the other communication devices described above and the positions of the communication device 101 and the other communication devices described above.

  The recording unit 321 also holds a notification destination for the C notification of each of the communication device 101 and the other communication devices described above. The notification destination is associated with the communication device ID of each of the communication device 101 and the other communication devices described above.

  The recording unit 321 further holds the first database and the second database described above.

  The recording unit 321 further holds programs and information necessary for each of the communication unit 316a, the processing unit 306, the creation unit 307, and the communication unit 316b to perform the above-described processes.

  In addition, the recording unit 321 records information instructed by each of the communication unit 316a, the processing unit 306, the creation unit 307, and the communication unit 316b.

  The recording unit 321 also sends information instructed by each of the communication unit 316a, the processing unit 306, the creation unit 307, and the communication unit 316b to any one of these destinations according to the instruction.

  1 is supplied with power necessary for the operation of each configuration from a power source (not shown).

  FIG. 4 is a conceptual diagram illustrating a configuration of a communication device 201a that is an example of the communication device 201 illustrated in FIG.

  The communication device 201a includes a transmitter 226.

  The transmitter 226 includes a transmission unit 206, a processing unit 211, a recording unit 216, and a power source 221.

  The power source 221 supplies each component of the communication device 201a with power necessary for the operation of each component. The power source 221 is preferably portable. The power source 221 is, for example, a battery or a solar battery.

  The processing unit 211 causes the transmission unit 206 to emit radio waves in a predetermined radio band including the ID of the communication device 201a to the surrounding space at a predetermined timing. The interval is, for example, 1 second.

  The transmission unit 206 emits wireless radio waves to the surrounding wireless space in accordance with instructions from the processing unit 211. The wireless band of the radio wave is a wireless band that can be received by the communication apparatus 101 illustrated in FIG. The radio band is, for example, a 920 MHz band.

  The recording unit 216 holds an ID of the communication device 201a, a program and information necessary for the transmission unit 206 or the processing unit 211 to perform the above processing. The recording unit 216 also records the instructed information in accordance with an instruction from the transmission unit 206 or the processing unit 211. The recording unit 216 also sends the instructed information to the transmission unit 206 or the processing unit 211 that is a destination in accordance with an instruction from the transmission unit 206 or the processing unit 211.

  As described above, the communication device 201 illustrated in FIG. 1 is used in a state where a person or object to be watched is held. The communication device 201 may include a mounting portion for facilitating the holding.

  FIG. 5 is a conceptual diagram illustrating a configuration of a communication device 201b that is an example of the communication device 201 including a mounting unit.

  The communication device 201b includes a transmitter 226 and a mounting unit 231.

  The description of the transmitter 226 illustrated in FIG. 5 is the same as the description of the transmitter 226 illustrated in FIG.

  At least a part of the mounting portion 231 is fixed to the transmitter 226. And the mounting part 231 makes holding | maintenance of the communication apparatus 201b by the person and thing of watching object easy.

  FIG. 6 is a conceptual diagram illustrating a configuration of a communication device 201c that is an example of the communication device 201b illustrated in FIG. FIG. 6A is a top view of the communication device 201c. FIG. 6B is a cross-sectional view assuming that the communication device 201c is cut along the line 199a.

  The communication device 201c includes a transmitter 226c and a mounting unit 231c.

  The transmitter 226c is an example of the transmitter 226 illustrated in FIG.

  The mounting portion 231 c includes a belt portion 233, a contact portion 232, and a contacted portion 234.

  A transmitter 226 c is fixed to the belt portion 233.

  The belt portion 233 has flexibility and can be wound around a portion to be attached such as a human hand or foot or a rod-shaped portion of an object.

  Then, in a state where the belt portion 233 is wound around the attachment portion, the surface of the contact portion 232 and the surface of the contacted portion 234 are brought into contact with each other, and the surfaces are pressed against each other with a predetermined surface pressure. The surface and the surface of the contacted part 234 are fixed with a predetermined strength.

  As described above, the communication device 201c is attached to the attachment portion.

  For example, one of the contact part 232 and the contacted part 234 is one of a pair of surface fasteners that can be bonded to each other, and the other of the contact part 232 and the contacted part 234 is the other of the surface fasteners.

  The contact part 232 and the contacted part 234 may be adhesive. Moreover, when the contact part 232 and the to-be-contacted part 234 are adhesive, the case where one of the contact part 232 and the to-be-contacted part 234 does not exist can be assumed.

  In addition to the mounting portion 231c shown in FIG. 6, the mounting portion may be a portion for attaching to a wristwatch belt or an arm.

The mounting portion may further be a structure that can be locked like a handcuff. When the key is locked, the communication device may be difficult to be removed from the watching target after being attached to the watching target.
[Operation example]
Next, a specific example of the operation of the communication apparatus illustrated in FIG. 1 will be described.

  7 and 8 are diagrams illustrating an example (part 1) of temporal change in the position of the communication device 201 illustrated in FIG. The time changes in the order of FIGS. 7A, 7B, 8A, and 8B.

  The target person 701 shown in FIGS. 7 and 8 is a person to be watched over by a person not shown. The inside of the building 706 is a position range where the subject 701 should be. The position of the target person 701 deviates from the position range when the target person 701 goes outside the building 706. Here, in order for the target person 701 to go outside the building 706, the person 701 must pass through the entrance / exit 711. Here, a door, a window, etc. are assumed as an entrance / exit.

  In the following description, “abnormal” refers to a deviation from a position range in which it is determined that the watching target should be (is).

  The state of the target person 701 is further increased in degree of abnormality when the target person 701 goes outside the site. Here, in order for the target person 701 to go outside the site, the target person 701 must pass through the gate installed in the gate portion 716.

  Note that the communication device 201 shown in FIG. 1 is attached to the subject 701.

  A communication device 101 is installed in a site near the gate 716.

  FIG. 7A is a diagram illustrating a state in which the target person 701 is inside the building 706.

  The communication device 201 attached to the subject 701 emits radio waves at a predetermined timing. The wireless radio wave passes through the constituent members of the entrance / exit 711 and the wall of the building 706, reaches the communication device 101, and is received by the communication device 101. The constituent member of the entrance / exit 711 is, for example, a door or a window glass.

  The radio wave intensity reaching the communication apparatus 101 is greatly attenuated as compared with the vicinity of the communication device 201. The reason is that the distance from the communication device 201 to the communication device 101 is at least the distance between the communication device 101 and the entrance / exit 711, and further, radio waves are attenuated by the constituent members of the entrance / exit 711 and the wall of the building 706.

  The communication apparatus 101 acquires the ID of the communication device 201 included in the wireless radio wave. The communication apparatus 101 also determines that the received radio wave intensity (the first intensity described above) of the radio wave is smaller than a predetermined threshold value (threshold value Th1). In that case, the communication apparatus 101 does not perform any operation other than the above with regard to watching the target person 701.

  FIG. 7B is a diagram illustrating a state in which the subject 701 opens the entrance 711 and exits to the site outside the building 706.

  The radio wave intensity of the radio wave by the communication device 101 by the communication device 201 is such that the subject 701 opens the entrance, and the entrance components (doors, window glass, etc.) and the walls of the building 706 are between the communication device 201 and the communication device 101. It increases when there is no more. Since the time required for the constituent members of the entrance / exit to disappear between the communication device 201 and the communication device 101 is short, the radio wave intensity increases in a short time. For this reason, the first strength of the communication apparatus 101 increases in a short time.

  The communication apparatus 101 determines that an abnormality has occurred in the state of the target person 701 and the communication device 201 due to the increase in the first strength (first determination). For example, the communication apparatus 101 performs notification (first notification) based on the first determination.

  The first notification is, for example, the above-described A notification sent to the management apparatus 301 illustrated in FIG. The first notification may be sent to a display unit (not shown) installed in the building 706 or on the site, or a display unit (not shown) provided in the communication device 101, for example, instead of the above-mentioned A notification. In this case, these display units that have received the first notification display information indicating that an abnormality has occurred in the location of the subject 701.

  If the increase in the first intensity continues for a certain long time, the communication apparatus 101 may determine that a higher degree of abnormality has occurred with respect to the state of the target person 701 and the communication device 201 (second). Judgment). For example, the communication apparatus 101 performs notification (second notification) based on the second determination.

  The second notification is, for example, the above-described A notification sent to the management apparatus 301 illustrated in FIG. The second notification may be sent to a display unit (not shown) installed in the building 706 or on the site, or a display unit (not shown) included in the communication device 101, for example, instead of the above-mentioned A notification. Absent. In this case, these display units that have received the second notification display information indicating that an abnormality has occurred in the state of the subject 701. The display is, for example, a display with a higher warning level than the display when the display unit has already performed the display that has received the first notification.

  FIG. 8A is a conceptual diagram showing a state in which the subject 701 in the site has approached the gate 716. The fact that the subject 701 has approached the gate 716 means that the subject 701 is likely to go out of the site through the gate of the gate 716. Accordingly, the state shown in FIG. 8A has a higher degree of abnormality than the state shown in FIG.

  In the state shown in FIG. 8A, the communication device 201 attached to the subject 701 is near the communication device 101 installed in the vicinity of the gate 716. Therefore, the radio wave intensity of the radio wave emitted from the communication device 201 that reaches the communication device 101 is larger than that in the state shown in FIG. Accordingly, the first intensity of the radio wave by the communication device 101 is also large.

  When the communication apparatus 101 determines that the first intensity of the radio wave exceeds the threshold Th2 (third determination), for example, the communication apparatus 101 performs a third notification.

  The third notification is, for example, the aforementioned A notification sent to the management apparatus 301 illustrated in FIG. The third notification is not the above-mentioned A notification, but may be sent to a display unit (not shown) installed in the building 706 or on the site, or a display unit (not shown) included in the communication device 101, for example. Absent. In this case, these display units that have received the third notification display information indicating that an abnormality has occurred in the state of the subject 701.

  When the above-mentioned display part has already performed the display which received the above-mentioned 1st notice and the 2nd notice, the said display is a notice of a higher warning level, for example.

  FIG. 8B is a diagram illustrating a state in which the subject 701 who has passed through the gate of the gate 716 is away from the gate 716 and the building 706.

  In the state illustrated in FIG. 8B, the communication device 201 attached to the subject 701 is away from the communication device 101. Therefore, the first intensity related to reception by the communication device 101 of the radio wave emitted from the communication device 201 is lower than the state shown in FIG. 7B or FIG.

  If the communication device 201 determines that the first strength is smaller than the threshold Th3 (fourth determination), for example, the communication device 201 performs a fourth notification.

  The fourth notification is, for example, the above-described A notification sent to the management apparatus 301 illustrated in FIG. The fourth notification may be sent to a display unit (not shown) installed in the building 706 or on the site, or a display unit (not shown) provided in the communication device 101, for example, instead of the A notification described above. Absent. In this case, these display units that have received the fourth notification display information indicating that an abnormality has occurred in the state of the subject 701.

  When the above-described display unit has already performed a display that has received the first notification, the second notification, or the third notification, the display is, for example, a display with a higher warning level.

  9 and 10 are diagrams illustrating an example (part 2) of time change in the position of the communication device 201 illustrated in FIG. The time changes in the order of FIG. 9 (a), FIG. 9 (b), and FIG. 10 (a) to FIG. 10 (c).

  The object 702 shown in FIGS. 9 and 10 is an object to be watched over by a person not shown. It is assumed that the position range where the object 702 should be defined is the inside of the building 706. The position of the object 702 becomes abnormal when the object 702 goes outside the building 706.

  A person 703 shown in FIGS. 9 and 10 is a person who enters the building 706 from the outside of the building 706 and takes out the object 702. Here, in order for the person 703 to go out of the building 706 with the object 702, the person 703 must pass through the entrance / exit installed at the entrance / exit 711.

  The state of the object 702 becomes more abnormal when the object 702 goes outside the site. Here, in order for the person 703 to go outside the site with the object 702, the person 703 must pass through the gate installed in the gate part 716.

  The target object 702 stores the communication device 201 shown in FIG.

  A communication device 101 is installed in a site near the gate 716.

  FIG. 9A is a diagram illustrating a state in which the object 702 is inside the building 706.

  The communication device 201 stored in the object 702 emits radio waves at a predetermined timing. The wireless radio wave passes through the constituent members of the entrance / exit 711 and the wall of the building 706, reaches the communication device 101, and is received by the communication device 101. The radio wave intensity of the radio wave reaching the communication device 101 is greatly attenuated as compared with the vicinity of the communication device 201. The reason is that the distance from the communication device 201 to the communication device 101 is long, and further, radio waves are attenuated by the constituent members of the entrance / exit 711 and the wall of the building 706.

  The communication apparatus 101 acquires the ID of the communication device 201 included in the wireless radio wave. The communication apparatus 101 also determines that the first intensity of the radio wave is smaller than a predetermined threshold (threshold Th1). In that case, the communication apparatus 101 does not perform any special operation other than the above in regard to watching the object 702.

  FIG. 9B is a diagram illustrating a state in which a person 703 enters a building 706 and has an object 702. In the state shown in FIG. 9B, the radio wave emitted from the communication device 201 stored in the object 702 is attenuated by the constituent members (doors, window glass, etc.) of the entrance / exit 711 and the wall of the building 706, and the communication device. 101 is reached. Accordingly, the first intensity of the radio wave by the communication device 101 is smaller than the threshold Th1.

  FIG. 10A is a diagram illustrating a state in which a person 703 has an object 702, opens an entrance / exit 711, and exits to a site outside the building 706.

  The radio wave intensity by the communication device 101 of the radio wave by the communication device 201 is due to the fact that the person 703 opens the entrance / exit 711 and there are no constituent members (doors, window glass, etc.) of the entrance / exit 711 between the communication device 201 and the communication device 101. ,To increase. Since the time required to eliminate the constituent members of the entrance / exit 711 between the communication device 201 and the communication device 101 is short, the radio wave intensity increases in a short time. For this reason, the first intensity of the radio wave of the communication apparatus 101 increases in a short time.

  The communication apparatus 101 determines that an abnormality has occurred in the state of the object 702 and the communication device 201 due to the increase in the first strength (first determination). For example, the communication apparatus 101 performs notification (first notification) based on the first determination.

  The first notification is, for example, the above-described A notification sent to the management apparatus 301 illustrated in FIG. The first notification may be sent to a display unit (not shown) installed in the building 706 or on the site or a display unit (not shown) included in the communication device 101, for example, instead of the A notification described above. Absent. In this case, these display units that have received the first notification display information indicating that an abnormality has occurred in the state of the object 702.

  When the increase in the first intensity continues for a certain long time, the communication apparatus 101 may determine that a higher degree of abnormality has occurred in the states of the target person 701 and the communication device 201 (first). Second judgment). For example, the communication apparatus 101 performs notification (second notification) based on the second determination.

  The second notification is, for example, the above-described A notification sent to the management apparatus 301 illustrated in FIG. The second notification may be sent to a display unit (not shown) installed in the building 706 or on the site, or a display unit (not shown) included in the communication device 101, for example, instead of the above-mentioned A notification. Absent. In this case, these display units that have received the second notification display information indicating that an abnormality has occurred in the state of the subject 701. The display is, for example, a display with a higher warning level than the display when the display unit has already performed the display that has received the first notification.

  FIG. 10B is a conceptual diagram showing a state in which a person 703 in the site approaches the gate 716 with the object 702. The fact that the person 703 has approached the gate 716 means that the object 702 is likely to go out of the site through the gate of the gate 716. Accordingly, the state shown in FIG. 10B has a higher degree of abnormality than the state shown in FIG.

  In the state shown in FIG. 10B, the communication device 201 attached to the object 702 is near the communication device 101 installed in the vicinity of the gate portion 716. For this reason, the radio wave intensity of the radio wave emitted from the communication device 201 reaching the communication device 101 is larger than that in the state shown in FIG. Accordingly, the first intensity of the radio wave by the communication device 101 is also large.

  When the communication apparatus 101 determines that the first intensity of the radio wave exceeds the threshold Th2 (third determination), for example, the communication apparatus 101 performs a third notification.

  The third notification is, for example, the aforementioned A notification sent to the management apparatus 301 illustrated in FIG. The third notification is not the above-mentioned A notification, but may be sent to a display unit (not shown) installed in the building 706 or on the site, or a display unit (not shown) included in the communication device 101, for example. Absent. In this case, the display units that have received the third notification display information indicating that an abnormality has occurred in the state of the object 702.

  When the above-mentioned display part has already performed the display which received the above-mentioned 1st notice, the display part performs the notice which raised the warning level further, for example.

  FIG. 10C is a diagram illustrating a state in which the object 702 that has passed through the gate of the gate portion 716 is separated from the gate portion 716 and the building 706.

  In the state illustrated in FIG. 10C, the communication device 201 stored in the object 702 is away from the communication device 101. Therefore, the first intensity related to reception by the communication device 101 of the radio wave emitted by the communication device 201 is lower than the state shown in FIG. 9B or FIG.

  If the communication device 201 determines that the first strength is smaller than the threshold Th3 (fourth determination), for example, the communication device 201 performs a fourth notification.

  The fourth notification is, for example, the above-described A notification sent to the management apparatus 301 illustrated in FIG. The fourth notification may be sent to a display unit (not shown) installed in the building 706 or on the site, or a display unit (not shown) provided in the communication device 101, for example, instead of the A notification described above. Absent. In this case, these display units that have received the fourth notification display information indicating that an abnormality has occurred in the state of the object 702.

  When the above-mentioned display part has already performed the display which received the above-mentioned 1st notice and the 3rd notice, the display part performs the notice which raised the warning level further, for example.

  The display unit in the description of FIGS. 7 to 10 outputs information indicating that an abnormality has occurred in the location of the target person 701 together with the display or in place of the display, by voice, vibration, or the like. It doesn't matter.

  The display unit is, for example, a HEMS installed inside a building 706. Here, HEMS is an abbreviation for Home Energy Management System. When the communication apparatus 101 is a smart meter, it is determined that the communication apparatus 101 communicates with the HEMS via the B route described above (see Non-Patent Document 1). Therefore, when the communication apparatus 101 is a smart meter, the display or the like can be output to the HEMS serving as the display unit by communication using the B route.

  FIG. 11 shows a communication device for radio waves emitted by the communication device 201 corresponding to the transition of the state shown in FIG. 7A to FIG. 8B or FIG. 9A to FIG. It is a conceptual diagram showing the example of a time change of the 1st intensity | strength in 101. FIG.

  The first intensity before the time Tr is the first intensity in the communication device 101 of the radio wave emitted by the communication device 201 in the states of FIGS. 7A, 9A, and 9B. In this state, the radio wave emitted from the communication device 201 reaches the communication device 101 through the constituent members of the entrance / exit 711 and the wall of the building 706 shown in FIGS. 7A, 9A, and 9B. . For this reason, the first intensity before time T is larger than the above-described threshold Th3 but is relatively low.

  When the entrance / exit 711 shown in FIGS. 7A and 9B between the time Tr and the time Ta is shown in FIG. 9B by the subject 701 in the case shown in FIG. 7A. Is opened by a person 703. Thereby, the structural member between the communication apparatus 201 and the communication apparatus 101 is lost, and the first strength increases within a short time. In the transition to the time Ta, the first intensity becomes Th1 or more.

  After that, between the time Ta and the time Tb, the state shown in FIG. 7B to the state shown in FIG. 8A, or the state shown in FIG. 10A to the state shown in FIG. 10B. Respectively. Between the time Ta and the time Tb, since the communication device 201 approaches the communication device 101, the first strength increases.

  In FIG. 8A or FIG. 10B, the first intensity is equal to or greater than a threshold Th2.

  After the time Tb, the first strength increases until the time Tc when the communication device 201 is closest to the communication device 101. When the time Tc is exceeded, the communication device 201 and the communication device 101 are separated from each other. Decrease.

When the time Td is exceeded, the first intensity becomes less than the threshold Th3. Time Td is the time corresponding to the state of FIG. 8B or FIG.
[Processing flow example]
First, a processing flow example of processing performed by the communication device 201 illustrated in FIG. 1 will be described.

  FIG. 12 is a conceptual diagram illustrating a processing flow example of processing performed by the processing unit 211 illustrated in FIG.

  For example, the processing unit 211 starts the processing illustrated in FIG. 12 when the power from the power source 221 illustrated in FIG. 5 is supplied.

  And the process part 211 instruct | indicates discharge | release of the radio wave containing ID of the communication apparatus 201b with respect to the transmission part 206 shown in FIG. 5 as a process of S101. In response to the instruction, the transmission unit 206 emits a predetermined radio wave.

  And the process part 211 determines whether time (DELTA) T1 passed since the time of completion | finish of the process represented to S101 as a process of S102. Here, it is assumed that the processing unit 211 can use a timer.

  The processing unit 211 performs the process of S103 when the determination result of the process of S102 is yes.

  On the other hand, when the determination result of the process of S102 is no, the processing unit 211 performs the process of S102 again.

  When performing the process of S103, the processing unit 211 determines whether to end the process illustrated in FIG. 12 as the same process. The processing unit 211 performs the determination by, for example, determining whether there is input of end information from the outside. The end information is, for example, due to the stop of power supply from the power source 221 shown in FIG.

  If the determination result obtained in step S103 is yes, the processing unit 211 ends the process illustrated in FIG.

  On the other hand, the process part 211 performs the process of S101 again, when the determination result by the process of S103 is no.

  Next, a processing flow example of processing performed by the communication apparatus 101 illustrated in FIG. 1 will be described.

  FIG. 13 is a conceptual diagram illustrating a processing flow example of processing performed by the processing unit 106a of the communication apparatus 101a illustrated in FIG. This process is a process of sending the measurement information measured by the communication apparatus 101a to the management apparatus 301 shown in FIG.

  For example, the processing unit 106a starts the processing illustrated in FIG. 13 when power supply is started.

  And the process part 106a acquires the newest measurement information which the measurement part 121 shown in FIG. 2 recorded on the recording part 126 from the recording part 126 as a process of S201. Here, it is assumed that the measurement unit 121 illustrated in FIG. 2 sequentially records measurement information in the recording unit 126.

  Then, the processing unit 106a creates sending information including the measurement information acquired from the recording unit 126 as the processing of S202.

  Then, the processing unit 106a instructs the communication unit 116a to send the sending information created by the processing of S203 to the management apparatus 301 illustrated in FIG. 1 as the processing of S203. The communication unit 116a sends the sending information to the management apparatus 301 in accordance with the instruction.

  Then, the processing unit 106a determines whether or not the time ΔT2 has elapsed since the end of the process of S203, as the process of S204. Here, it is assumed that the processing unit 106a can use a timer.

  When the determination result obtained in step S204 is yes, the processing unit 106a performs step S205.

  On the other hand, when the result of the determination in S204 is no, the processing unit 106a performs the process in S204 again.

  When performing the process of S205, the processing unit 106a determines whether to end the process illustrated in FIG. 13 as the same process. The processing unit 106a performs the determination by, for example, determining whether there is input of end information from the outside. The end information is, for example, due to the stop of supplied power.

  If the determination result obtained in step S205 is yes, the processing unit 106a ends the process illustrated in FIG.

  On the other hand, when the determination result obtained in S205 is no, the processing unit 106a performs the process in S201 again.

  FIG. 14 is a conceptual diagram illustrating an example of a processing flow of processing related to radio waves emitted from the wireless device, which is performed by the processing unit 106b of the communication apparatus 101a illustrated in FIG. In the process shown in FIG. 14, the communication unit 116b shown in FIG. 2 displays the received radio wave intensity of the radio wave having the same frequency as the radio wave emitted by the communication device 201 shown in FIG. 1 and the information included in the radio wave. It is assumed that the data is sequentially sent to the processing unit 106b.

  For example, when the power supply is started, the processing unit 106b starts the process illustrated in FIG.

  Then, the processing unit 106b determines whether the received radio wave intensity of the radio wave having the same frequency as the radio wave emitted by the communication device 201 illustrated in FIG. 1 exceeds the threshold Th6 as the process of S261. Here, the threshold Th6 is a threshold for the received radio wave intensity that is predetermined for the processing of S261. The threshold Th6 is held in advance by the recording unit 126 illustrated in FIG.

  When the determination result obtained in S261 is yes, the processing unit 106b performs the process in S262.

  On the other hand, when the determination result of the process of S261 is “no”, the processing unit 106b performs the process of S261 again.

  When the processing unit 106b performs the process of S262, whether the ID of the transmission source of the radio wave included in the radio wave determined to be yes by the process of S261 is that of the communication device 201. Judgment is made about.

  The processing unit 106b performs the process of S263 when the determination result of the process of S262 is yes.

  On the other hand, the process part 106b performs the process of S264, when the determination result by the process of S262 is no.

  When performing the process of S263, the processing unit 106b performs a first process described later with reference to FIG. Then, the processing unit 106b performs the process of S266.

  When performing the processing of S264, the processing unit 106b determines whether the ID included in the wireless radio wave is that of another target wireless device as the same processing. The other communication device is a wireless device such as the communication device 201 shown in FIG. The other communication device is assumed to be held by a monitoring target of a communication device other than the communication device 101 illustrated in FIG.

  When the determination result obtained in the process of S264 is yes, the processing unit 106b performs the process of S265.

  On the other hand, the process part 106b performs the process of S266, when the determination result by the process of S264 is no.

  When performing the process of S265, the processing unit 106b performs a second process described later with reference to FIG. 25 as the same process. Then, the processing unit 106b performs the process of S266.

  When performing the process of S266, the processing unit 106b determines whether to end the process illustrated in FIG. 14 as the same process. The processing unit 106b performs the determination by determining whether or not the end information is input, for example. The end information is generated, for example, when the power supplied to the processing unit 106b is stopped.

  If the determination result obtained in step S266 is yes, the processing unit 106b ends the process illustrated in FIG.

  On the other hand, when the determination result obtained in step S266 is no, the processing unit 106b performs the process in step S261 again.

  FIG. 15 is a conceptual diagram illustrating a processing flow example of the processing of S263 illustrated in FIG. The process illustrated in FIG. 15 is a process related to determination based on whether there is an abnormality in the location of the communication device 201 illustrated in FIG. 1 and notification based on the determination result. As described above, the abnormality in the location of the communication device 201 means an abnormality in the location of the monitoring target that holds the communication device 201.

  When the determination result obtained in step S262 illustrated in FIG. 14 is yes, the processing unit 106b performs the first determination as the processing in step S211. The first determination is a process for determining whether the watching target is in a state as shown in FIG. 7B or FIG. 10A, for example. A processing example of the first determination will be described later with reference to FIGS.

  When the determination result by the first determination is yes indicating the determination result that the location of the communication device 201 illustrated in FIG. 1 is abnormal, the processing unit 106b performs the process of S212.

  On the other hand, when the determination result by the first determination is no indicating the determination result that there is no abnormality in the location of the communication device 201, the processing unit 106b performs the process of S211 again.

  When performing the process of S212, the processing unit 106b performs the first notification described above as the same process.

  Then, the processing unit 106b performs the second determination as the process of S213. The second determination is a process of determining whether the watching target has maintained the state shown in FIG. 7B or FIG. 10A, for example. A processing example of the second determination will be described later with reference to FIG.

  When the determination result by the second determination is yes indicating the determination result indicating that the degree of abnormality of the location of the communication device 201 illustrated in FIG. 1 is increased, the processing unit 106b performs the process of S214.

  On the other hand, when the determination result by the second determination is no indicating the determination result that the degree of abnormality of the location of the communication device 201 has not increased, the processing unit 106b performs the process of S213 again.

  When performing the process of S214, the processing unit 106b performs the second notification described above as the same process.

  Then, the processing unit 106b performs a third determination as the process of S215. The third determination is a process for determining whether the watching target is in a state as shown in FIG. 8A or FIG. 10B, for example. An example of the third determination process will be described later with reference to FIGS. 21 and 22.

  When the determination result of the third determination is yes indicating the determination result indicating that the degree of abnormality of the location of the communication device 201 illustrated in FIG. 1 is increased, the processing unit 106b performs the process of S216.

  On the other hand, when the determination result by the third determination is no indicating the determination result that the degree of abnormality of the location of the communication device 201 has not increased, the processing unit 106b performs the process of S215 again.

  When performing the process of S216, the processing unit 106b performs the above-described third notification as the same process.

  Then, the processing unit 106b performs a fourth determination as the process of S217. The fourth determination is a process for determining whether the watching target is in a state as shown in FIG. 8B or FIG. 10C, for example. A fourth determination process example will be described later with reference to FIGS.

  When the determination result by the fourth determination is yes indicating the determination result indicating that the degree of abnormality of the location of the communication device 201 illustrated in FIG. 1 is increased, the processing unit 106b performs the process of S218.

  On the other hand, when the determination result by the fourth determination is no indicating the determination result that the degree of abnormality of the location of the communication device 201 has not increased, the processing unit 106b performs the process of S217 again.

  When performing the processing of S218, the processing unit 106b performs the above-described fourth notification as the same processing.

  Then, the processing unit 106b performs the process of S266 illustrated in FIG.

  Note that any three or less of the first to fourth determinations shown in FIG. 15 can be deleted. In this case, the notification (any one or more of the first to fourth notifications) corresponding to the deleted one of the first to fourth determinations is deleted.

  Further, when any one of the first determination to the fourth determination is not deleted, the notification corresponding to the one not deleted (any one of the first to fourth notifications) is It may be deleted. However, at least one of the first to fourth notifications is not deleted.

  FIG. 16 is a conceptual diagram illustrating a first example of the process of S211 illustrated in FIG.

  When the determination result of the process of S262 illustrated in FIG. 14 is yes, the processing unit 106b determines whether the first strength sent from the communication unit 116b illustrated in FIG. 2 is equal to or greater than the threshold Th1 as the process of S221a. Make a decision. Here, the threshold value Th1 is a threshold value for the first intensity relating to the reception by the communication unit 116b of the radio wave emitted by the communication device 201, which is predetermined for the processing of S221a. The recording unit 126 shown in FIG. 2 holds a threshold value Th1 in advance.

  If the determination result obtained in S221a is yes, the processing unit 106b performs the process in S212 illustrated in FIG.

  On the other hand, when the determination result of the process of S221a is no, the processing unit 106b performs the process of S221a again.

  FIG. 17 is a conceptual diagram illustrating a second example of the process of S211 illustrated in FIG.

  When the determination result of the process of S262 illustrated in FIG. 14 is yes, the processing unit 106b performs the process of S221b, in which the slope of the increase in the first intensity sent from the communication unit 116b illustrated in FIG. Determine if there is any. Here, the threshold value Th1b is a threshold value for the slope of the first intensity related to reception by the communication unit 116b of the radio wave emitted by the communication device 201, which is predetermined for the process of S221b. The recording unit 126 illustrated in FIG. 2 holds a threshold value Th1b in advance.

  If the determination result obtained in step S221b is yes, the processing unit 106b performs the process in step S212 illustrated in FIG.

  On the other hand, when the determination result obtained in S221b is no, the processing unit 106b performs the process in S221b again.

  FIG. 18 is a conceptual diagram illustrating a third example of the process of S211 illustrated in FIG.

  When the determination result obtained in step S262 illustrated in FIG. 14 is yes, the processing unit 106b performs the process in step S221b. The description of the process of S221b is the same as the description of the process of S221b illustrated in FIG. However, the process part 106b performs the process of S221a, when the determination result by the process of S221b is yes. The description of the process of S221a is the same as the description of the process of S211a illustrated in FIG.

  As shown in FIG. 18, by combining the processing of S221a and S221b, for example, due to the influence of noise or the like, the watching target does not go out of the building, but it goes out of the building. Then, the determination error determined by the processing unit 106b can be suppressed.

  FIG. 19 is a conceptual diagram illustrating a fourth example of the process of S211 illustrated in FIG.

  When the determination result of the process of S262 illustrated in FIG. 14 is yes, the processing unit 106b performs the following determination as the process of S221c. The determination is as to whether the slope of the increase in the first intensity sent from the communication unit 116b shown in FIG. 2 is equal to or greater than the aforementioned threshold Th1b, or whether the first intensity is equal to or greater than the aforementioned threshold Th1. It is a judgment of.

  If the determination result obtained in step S221c is yes, the processing unit 106b performs the process in step S212 illustrated in FIG.

  On the other hand, when the determination result of the process of S221c is no, the processing unit 106b performs the process of S221c again.

  With the processing shown in FIG. 19, for example, a determination error that the processing unit 106b determines that the watching target is not out of the building even though the watching target is out of the building due to the influence of noise or the like. Can be suppressed.

  FIG. 20 is a diagram illustrating an example of the process of S213 illustrated in FIG.

  Whether the first intensity sent from the communication unit 116b illustrated in FIG. 2 is equal to or greater than the above-described threshold Th1 continues as the processing of S231a after the process of S212 illustrated in FIG. Judgment is made about. Here, the time T1 is a threshold value for a predetermined time for the processing of S231a. The recording unit 126 shown in FIG. 2 holds the time T1.

  If the determination result obtained in step S231a is yes, the processing unit 106b performs the process in step S214 illustrated in FIG.

  On the other hand, when the determination result of the process of S231a is no, the processing unit 106b performs the process of S231a again.

  FIG. 21 is a conceptual diagram illustrating a first example of the process of S215 illustrated in FIG.

  The processing unit 106b determines whether or not the first intensity sent from the communication unit 116b illustrated in FIG. 2 is equal to or greater than the threshold Th2 as the processing of S241 following the processing of S214 illustrated in FIG. Here, the threshold value Th2 is a threshold value for the first intensity related to reception by the communication unit 116b of radio waves emitted by the communication device 201, which is determined in advance for the processing of S241. The threshold value Th2 is a value larger than the aforementioned threshold value Th1. This is to detect that the communication device 201 has approached the communication device 101 as in the states illustrated in FIG. 8A and FIG. The recording unit 126 illustrated in FIG. 2 holds a threshold Th2 in advance.

  If the determination result obtained in S241 is yes, the processing unit 106b performs the process in S216 illustrated in FIG.

  On the other hand, when the determination result of the process of S241 is no, the processing unit 106b performs the process of S241 again.

  FIG. 22 is a conceptual diagram illustrating a second example of the process of S215 illustrated in FIG.

  The processing unit 106b performs the process of S241 after the process of S214 illustrated in FIG. The description of the process of S241 illustrated in FIG. 22 is the same as the description of the process of S241 illustrated in FIG. However, the process part 106b performs the process of S242, when the determination result by the process of S241 is yes.

  When performing the process of S242, the processing unit 106b determines whether the first intensity is monotonously increased for a certain time until the process is performed.

  If the determination result obtained in step S242 is yes, the processing unit 106b performs the process of S216 illustrated in FIG.

  On the other hand, the process part 106b performs the process of S241 again, when the determination result by the process of S242 is no.

  When the watching target or the person holding the watching target goes out of the site, the person holding the watching target or the watching target is assumed to go straight to the gate of the site. And it is assumed that the first strength increases monotonously when the watching target or the person holding the watching target goes straight to the gate of the site. Accordingly, by combining the process of S241 with the process of S241 as in the process shown in FIG. 22, it is possible to determine that the watching target is in a more dangerous state.

  FIG. 23 is a conceptual diagram illustrating a first example of the process of S217 illustrated in FIG.

  The processing unit 106b determines whether the first intensity transmitted from the communication unit 116b illustrated in FIG. 2 is less than the threshold Th3 as the processing of S251 after the processing of S216 illustrated in FIG. Here, the threshold value Th3 is a threshold value for the first intensity related to reception by the communication unit 116b of the radio wave emitted by the communication device 201, which is predetermined for the processing of S251.

  The threshold value Th3 is set to a value smaller than the above-described threshold value Th1 when the processing of S211 shown in FIG. 15 is not deleted. Further, the threshold value Th3 is set, for example, as shown in FIG. 7 (a), FIG. 9 (a), or FIG. 9 (b) regardless of whether or not the processing of S211 shown in FIG. 15 is deleted. The value is smaller than the first intensity in some cases.

  The threshold value Th3 is set as described above, for example, when the state shown in FIG. 8A is changed to the state shown in FIG. 8B, the state shown in FIG. This is to distinguish from the case of returning to the state shown in FIG. Alternatively, for example, when the state shown in FIG. 10B is changed to the state shown in FIG. 10C, the state shown in FIG. 10B is returned to the state shown in FIG. 10A. This is to distinguish.

  The recording unit 126 illustrated in FIG. 2 holds a threshold value Th3 in advance.

  If the determination result obtained in step S251 is yes, the processing unit 106b performs the process in step S218 illustrated in FIG.

  On the other hand, when the determination result obtained in S251 is no, the processing unit 106b performs the process in S251 again.

  FIG. 24 is a conceptual diagram illustrating a second example of the process of S217 illustrated in FIG.

  The processing unit 106b performs the process of S251 after the process of S216 illustrated in FIG. The description of the process of S251 is the same as the description of the process of S251 shown in FIG. However, the process part 106b performs the process of S252, when the determination result by the process of S251 is yes.

  When performing the process of S252, the processing unit 106b determines whether or not the first intensity is monotonously decreased for a certain time until the process is performed.

  If the determination result obtained in step S252 is yes, the processing unit 106b performs the process in step S218 illustrated in FIG.

  On the other hand, when the determination result of the process of S252 is no, the processing unit 106b performs the process of S251 again.

  It is estimated that the decrease in the first intensity is a monotonous decrease, and there is a clear intention to move away from the site to those who are watching or who are watching, and the degree of danger for the watching is high accordingly. . By the processing in S252 shown in FIG. 24, it is possible to estimate a case where the degree of danger is higher.

  FIG. 25 is a conceptual diagram illustrating a processing flow example of the processing of S265 illustrated in FIG.

  When the determination result obtained in step S264 illustrated in FIG. 14 is yes, the processing unit 106b performs the fifth determination as the process in S301. A fifth determination processing example will be described later with reference to FIG.

  The processing unit 106b performs the process of S302 when the determination result of the process of S301 is a determination result indicating that a communication apparatus that is not the communication apparatus 201 is approaching.

  On the other hand, the processing unit 106b performs the process of S301 again when the determination result of the process of S301 is “no” indicating that the communication apparatus that is not the communication apparatus 201 is not approaching.

  When performing the process of S302, the processing unit 106b instructs the communication unit 116a illustrated in FIG. 2 to send the B notification described above to the management apparatus 301 illustrated in FIG.

  Then, the processing unit 106b performs the process of S266 illustrated in FIG.

  FIG. 26 is a conceptual diagram illustrating an example of the process of S301 illustrated in FIG.

  When the process illustrated in FIG. 15 is started, the processing unit 106b determines whether the second intensity is greater than or equal to the threshold Th4 as the process of S311. Here, the threshold value Th4 is a threshold value for the second intensity determined in advance for the processing of S311. The recording unit 126 illustrated in FIG. 2 holds a threshold value Th4.

  If the determination result obtained in step S311 is yes, the processing unit 106b performs the processing in step S302 illustrated in FIG.

  On the other hand, when the determination result of the process of S311 is no, the processing unit 106b performs the process of S311 again.

  Next, a processing flow example of processing performed by the management apparatus 301 illustrated in FIG. 1 will be described.

  FIG. 27 is a conceptual diagram illustrating the above-described measurement information storage process performed by the processing unit 306 of the management apparatus 301a illustrated in FIG. 3 which is an example of the management apparatus 301.

  The processing unit 306 starts the process illustrated in FIG. 27, for example, by supplying power.

  Then, the processing unit 306 determines whether the measurement information is sent from the communication unit 316a illustrated in FIG. As described above, the measurement information is sent to the management apparatus 301 from the communication apparatus 101 shown in FIG. 1 or the other communication apparatus described above.

  The process part 306 performs the process of S322, when the determination result by the process of S321 is yes.

  On the other hand, the process part 306 performs the process of S321 again, when the determination result by the process of S321 is no.

  When the processing unit 306 performs the processing of S322, as the processing, the first information described above, which is a combination of the usage amount included in the measurement information, the reception time, and the ID of the communication device that has sent the measurement information, The data is stored in the first database held by the recording unit 321 shown in FIG. The usage amount is the usage amount included in the measurement information that has been determined to have been sent in the process of S321. The reception time is the reception time of the measurement information in the communication unit 316a.

  Then, the processing unit 306 determines whether to end the process illustrated in FIG. 27 as the process of S323. The processing unit 306 performs the determination by, for example, determining whether there is input of end information from the outside. The end information is, for example, due to power supply stoppage.

  If the determination result obtained in step S323 is yes, the processing unit 306 ends the process illustrated in FIG.

  On the other hand, the processing unit 306 performs the process of S321 again when the determination result of the process of S323 is no.

  FIG. 28 is a conceptual diagram illustrating an example of a processing flow of processing accompanying reception of the B notification described above, which is performed by the processing unit 306 of the management apparatus 301a illustrated in FIG.

  The processing unit 306 starts the processing shown in FIG. 28, for example, when the power supply is started.

  Then, the processing unit 306 determines whether or not the B notification is sent from the communication unit 316a as the processing of S331. Here, when the communication unit 316a receives the B notification from the communication device 101 illustrated in FIG. 1 or the above-described other communication device via the communication line 501a illustrated in FIG. 1, the communication unit 316a transmits the B notification and the B notification. It is assumed that the reception time is sent to the processing unit 306.

  And the process part 306 stores the above-mentioned 2nd information in the 2nd database which the recording part 321 shown in FIG. 3 hold | maintains as a process of S332. The second information is a combination of the ID of the communication device that has sent the B notification, the ID of the communication device, and the reception time of the B notification included in the B notification sent from the communication unit 316a.

  Then, the processing unit 306 determines whether to end the process illustrated in FIG. 28 as the process of S333. The processing unit 306 performs the determination by, for example, determining whether there is input of end information from the outside. The end information is, for example, due to the stop of the power supplied to the processing unit 306.

  If the determination result obtained in step S333 is yes, the processing unit 306 ends the process illustrated in FIG.

  On the other hand, the processing unit 306 performs the process of S331 again when the determination result of the process of S333 is no.

  FIG. 29 is a conceptual diagram illustrating an example of a processing flow of processing performed by the processing unit 306 of the management apparatus 301a illustrated in FIG.

  For example, the processing unit 306 starts the processing of FIG. 29 when power supply is started.

  Then, the processing unit 306 determines whether an A notification is sent from the communication unit 316a as the processing of S341. Here, when the communication unit 316a receives the A notification from the communication device 101 illustrated in FIG. 1 or the above-described other communication device via the communication line 501a illustrated in FIG. 1, the communication unit 316a transmits the A notification and the A notification. It is assumed that the reception time is sent to the processing unit 306.

  In step S342, the processing unit 306 stores the second database stored in the second database held by the recording unit 321 that matches the ID of the communication device included in the notification A sent from the communication unit 316a. It is determined whether there is a communication device ID included in the information. The second information described above is a combination of the ID of the communication device that sent the B notification, the ID of the communication device, and the reception time of the B notification.

  The process part 306 performs the process of S343, when the determination result by the process of S342 is yes.

  On the other hand, the process part 306 performs the process of S342 again, when the determination result by the process of S342 is no.

  When performing the process of S343, the processing unit 306 performs C notification as the same process. An example of the process of S343 will be described later with reference to FIG.

  Then, the processing unit 306 determines whether to end the process illustrated in FIG. 29 as the process of S344. The processing unit 306 makes the determination by, for example, determining the presence / absence of input from the outside of the end information. The end information is, for example, due to stoppage of power supply to the processing unit 306.

  If the determination result obtained in step S344 is yes, the processing unit 306 ends the process illustrated in FIG.

  If the determination result obtained in step S344 is no, the processing unit 306 performs the process in step S341 again.

  FIG. 30 is a conceptual diagram illustrating an example of the process of S343 illustrated in FIG.

  If the determination result obtained in step S342 illustrated in FIG. 29 is yes, the processing unit 306 instructs the creating unit 307 illustrated in FIG. 3 to create the content of the C notification as the processing in step S351. An example of the processing of S351 will be described later with reference to FIG.

  In step S352, the processing unit 306 instructs the communication unit 316a to send the C notification to the destination. The destination of the C notification is as described above.

  Then, the processing unit 306 performs the process of S344 illustrated in FIG.

  FIG. 31 is a conceptual diagram illustrating an example of the process of S351 illustrated in FIG.

  If the determination result obtained in step S342 shown in FIG. 29 is yes, the processing unit 306 uses the second information including the communication device ID that matches the communication device ID included in the notification A as the second processing. From the database. The second information is a combination of the ID of the communication device that sent the B notification, the ID of the communication device, and the reception time of the B notification.

  And the process part 306 derives | leads-out the position of the communication apparatus of communication apparatus ID contained in A notification from said 2nd information read by the process of S361 as a process of S362. An example of the process of S362 will be described later with reference to FIG.

  Then, the processing unit 306 instructs the creating unit 307 illustrated in FIG. 3 to create a C notification that incorporates the location information related to the location of the communication device derived by the processing of S362 as the processing of S363.

  Then, the processing unit 306 performs the process of S352 illustrated in FIG.

  FIG. 32 is a conceptual diagram illustrating a first example of the process of S362 illustrated in FIG.

  After the processing of S361 shown in FIG. 31, the processing unit 306 performs the processing of S371 in the first information including the communication device ID that matches the communication device ID included in the A notification sent from the communication unit 316a. Among them, the communication device ID included in the newest device is specified.

  Then, as the processing of S372, the processing unit 306 specifies the position of the communication device with the communication device ID from the communication device ID specified by the processing of S371 and the position information held by the recording unit 321.

  And the process part 306 makes the position of the communication apparatus specified by the process of S372 the process of S373 as a position of a communication apparatus.

  Then, the processing unit 306 performs the process of S363 illustrated in FIG.

  FIG. 33 is a conceptual diagram illustrating a second example of the process of S362 illustrated in FIG.

  The processing unit 306 specifies the reception time (first reception time) and the communication device ID included in the latest first information as the processing of S381 after the processing of S361 shown in FIG. The first information is the newest information among the first information including the communication device ID that matches the communication device ID included in the A notification sent from the communication unit 316a.

  Then, as the processing of S382, the processing unit 306 uses the communication device ID specified by the processing of S381 and the above-described position information held by the recording unit 321 to communicate the communication device ID of the communication device ID related to the first reception time. The position (first position) is specified.

  Next, in step S383, the processing unit 306 updates the second newest information among the first information including the communication device ID that matches the communication device ID included in the A notification sent from the communication unit 316a. The included reception time (second reception time) and the communication device ID are specified.

  Then, as the processing of S384, the processing unit 306 uses the communication device ID specified by the processing of S383 and the position information held by the recording unit 321 to communicate the communication device ID of the communication device ID related to the second reception time. The position (second position) is specified.

  Then, the processing unit 306 derives the direction of travel of the communication device 201 based on the first position specified by the process of S382 and the second position specified by the process of S384 as the process of S385. The processing unit 306 performs the derivation by, for example, connecting the first position and the second position with a straight line, and setting the direction from the second position to the first position in the straight line as the direction of travel. .

  The processing unit 306 further derives the speed of the communication device 201 as the processing of S385. The processing unit 306 obtains the derivation by, for example, obtaining a linear distance between the first position and the second position, and deriving the linear distance by subtracting the second reception time from the first reception time. This is done by dividing by

  Then, the processing unit 306 derives an estimated value of the current position of the communication device 201 based on the direction of travel and the speed of the communication device 201 derived by the processing of S385 as the processing of S386.

  Then, the processing unit 306 sets the estimated value derived by the process of S386 as the current position of the communication device 201 as the process of S387.

  Then, the processing unit 306 performs the process of S363 illustrated in FIG.

  The communication device according to the present embodiment is a communication device that measures the usage amount of a predetermined supply target and sends the usage amount to the management device by communication. Smart meters, which are such communication devices, are being introduced into homes and are expected to be completed by the end of FY2024 throughout Japan (see Non-Patent Document 1). By watching with a communication device such as a smart meter that configures the AMI network, it is possible to provide a reliable watch at low cost without introducing an independent new system for watching.

Furthermore, the following effects can be obtained in an environment where the communication device is a smart meter and the smart meter is installed in each home and exists at high density. That is, the management device of this embodiment enables tracking of the position of the monitoring target in a substantially continuous time series by communication between the communication device held by the monitoring target and the smart meter.
[effect]
As described above, in the communication system of the first embodiment, the communication device determines an abnormality in the position of the watching target from the received radio wave intensity (first strength) of the radio wave emitted by the communication device held by the watching target. . The received radio wave intensity is a value that varies greatly depending on the distance between the communication device and the communication device held by the watching target. Therefore, the accuracy of determination regarding the position of the watching target based on the received radio wave intensity is higher than that of the method using GPS described in the section “Background Art”.

  The communication device further detects an abnormality in the position of the monitoring target that the monitoring target goes out of the building depending on the presence or absence of a member between the communication device installed outside the building and the communication device. Judgment is made based on a change in the received intensity. Therefore, the communication device can perform a more accurate determination as to whether the watching target goes out of the building.

  The communication device can make a subdivided determination about the abnormal situation of the position of the watching target by the value of the first intensity and the duration of the value even after the watching target goes out of the building. . Therefore, the person watching over the watching target can grasp the subdivided abnormal situation of the watching target position.

  When the communication device determines an abnormality in the position to be watched over, the communication device performs the above-described notification A including the ID of the communication device as necessary to the management device. The management device determines whether the communication device or another communication device similar to the communication device is approaching not only from the communication device but also from another communication device similar to the communication device (the combination described above). Collecting. Then, when receiving the A notification, the management device watches the C notification indicating that an abnormality has occurred in the position of the watching target and sends it to the person watching the monitoring target. In that case, the person watching can know that an abnormality has occurred in the position of the watching target.

  The management apparatus may search for the determination information of the communication device ID that matches the communication device ID included in the A notification, and obtain the position of the communication device from the matching determination information in the communication device ID. In that case, the management apparatus watches the C notification including the position information of the position and sends it to the person watching the target. In that case, the person who watches can know the position of the watching target as well as the abnormality of the position of the watching target.

  Further, when the communication device is a smart meter that constitutes an AMI network, the communication system of the present embodiment makes it possible to reduce the cost of reliable monitoring without introducing an independent new system for monitoring. It becomes possible to provide.

  Furthermore, in an environment where smart meters are installed in each household and exist at high density, the following effects can be obtained in addition to the above effects. That is, the communication system can track (trace) the position of the watching target in a substantially continuous time series by communication between the communication device held by the watching target and the smart meter.

In addition, when the band of the radio wave which a communication apparatus discharge | releases is a 920 MHz band, attenuation | damping of the radio wave by presence of a member is remarkable. Therefore, in this case, the increase in the first strength in the communication device due to the opening of the entrance / exit by the watching target holding the communication device is significant. Therefore, in this case, the communication device can more accurately determine whether the watching target has moved out of the building.
<Second embodiment>
The second embodiment is an embodiment relating to a communication system including a second communication device capable of receiving the above-described radio wave emitted by the communication device. Here, the second communication device is a communication device that is not the communication device 101 illustrated in FIG. 1 described in the first embodiment and the other communication devices described above.
[Configuration and operation]
FIG. 34 is a conceptual diagram illustrating a configuration of a communication system 401b that is an example of the communication system according to the second embodiment.

  The communication system 401b includes a second communication device 181 in addition to the configuration of the communication system 401 illustrated in FIG.

  The description of the communication system 401b is the same as the description of the communication system 401 shown in FIG. However, when the following description and the description of FIG. 1 contradict each other, the following description has priority.

  The second communication device 181 can receive the radio wave when the radio wave emitted from the communication device 201 to the radio space has a predetermined intensity or more. Then, the second communication device 181 measures the received radio wave intensity (third intensity) of the received radio wave. Then, the second communication device 181 wirelessly communicates information (hereinafter referred to as “third information”) that combines the measured third strength, the ID of the communication device 201, and the ID of the second communication device 181. It is sent to the communication apparatus 101.

  The frequency of the radio wave used by the second communication device 181 for the communication device 101 is the same as the frequency of the radio wave emitted by the communication device 201, for example.

  The second communication device 181 is, for example, a HEMS.

  The communication device 101 determines whether there is an abnormality in the position of the watch target that holds the communication device 201 from the first strength and the third strength described above. A specific example of the determination operation will be described later with reference to FIGS.

  The communication apparatus 101 performs the above-described notification and the like based on the determination result.

  The communication device 101 sends the information indicating the first strength to the second communication device 181, and the second communication device 181 uses the first strength and the third strength to monitor the communication device 201. You may perform the determination about an abnormality of a position. In that case, the second communication device 181 sends the determination result to the communication device 101. And the communication apparatus 101 performs operation | movements, such as above-mentioned notification, according to the said determination result.

  FIG. 35 is a conceptual diagram illustrating a configuration of a second communication device 181a that is an example of the second communication device 181 illustrated in FIG.

  The second communication device 181a includes a recording unit 426, a communication unit 416, and a processing unit 406.

  The communication unit 416 measures the above-described third intensity for the radio wave emitted by the communication device 201 illustrated in FIG. 34 and sends information representing the third intensity to the processing unit 406.

  The communication unit 416 also sends information instructed by the processing unit 406 to the communication device 101.

  The processing unit 406 reads the ID of the communication device 201 and the ID of the second communication device 181a illustrated in FIG. Then, the processing unit 406 sends an instruction to send the third information combining the information indicating the third strength, the ID of the communication device 201, and the ID of the second communication device 181a to the communication device 101, to the communication unit 416. To do.

  The configuration example of the communication apparatus 101 illustrated in FIG. 34 is the same as the configuration example of the communication apparatus 101a illustrated in FIG. The description of the communication device 101a is as described with reference to FIG. 2 except for the following. However, when the description of FIG. 2 conflicts with the following description, the following description is given priority.

  Each component of the communication apparatus 101 performs the following operation in addition to the operation described with reference to FIG.

  When the communication unit 116b receives the third information including the third strength described above, which is transmitted by the second communication device 181 illustrated in FIG. 34, the communication unit 116b transmits the third information to the processing unit 106b.

  The processing unit 106b reads the threshold value Th5 from the recording unit 126. The threshold value Th5 is a threshold value for the third intensity. Then, the processing unit 106b determines whether the third intensity included in the third information transmitted from the communication unit 116b is equal to or greater than a threshold Th5. Then, the processing unit 106b determines whether there is an abnormality in the position of the watching target that holds the communication device 201 from the determination result regarding the first intensity and the determination result regarding the third intensity. An example of the determination process will be described later with reference to FIGS.

  The processing unit 106b performs an operation such as the notification described above based on the determination result.

  Here, the processing unit 106b sends information representing the first strength to the second communication device 181, and the second communication device 181 keeps the communication device 201 from the first strength and the third strength. You may make it determine about the abnormality of a position. In that case, the second communication device 181 sends the determination result to the communication device 101a. The communication unit 116b receives the determination result and sends the determination result to the processing unit 106b. Then, the processing unit 106b performs the above-described notification and the like based on the determination result.

  The recording unit 126 holds the threshold Th5 and the ID of the second communication device 181a in advance. The recording unit 426 holds programs and information necessary for the processing unit 406 to perform the above-described processing. The recording unit 426 also records information instructed by the processing unit 406. The processing unit 406 also sends information instructed by the processing unit 406 to the processing unit 406.

  The configuration example of the management apparatus 301 illustrated in FIG. 34 is the same as the configuration of the management apparatus 301a illustrated in FIG.

  The configuration example of the communication device 201 illustrated in FIG. 34 is the same as the configuration example of the communication device 201a illustrated in FIG. 4, the communication device 201b illustrated in FIG. 5, or the communication device 201c illustrated in FIG.

  FIG. 36 is a diagram illustrating a time change example of the position of the communication device 201 illustrated in FIG. 34. The time changes in the order of FIG. 36 (a) and FIG. 36 (b).

  The description of FIGS. 36A and 36B is the same as the description of FIGS. 7A and 7B in this order except for the following. However, when the following description and the description of FIG. 7 conflict, the following description is given priority.

  A second communication device 181 shown in FIG. 34 is installed inside the building 706. The second communication device 181 measures the third intensity of the radio wave emitted by the communication device 201 held by the subject 701, and communicates the third information including the third intensity at a predetermined timing. Send to device 101.

  In the state shown in FIG. 36 (a), the radio wave from the communication device 201 is at a short distance and reaches the second communication device 181 without separating members. Therefore, the third strength is a relatively high value. The communication apparatus 101 determines that the third intensity is a threshold Th5 or more.

  In the state shown in FIG. 36A, as described above, the communication apparatus 101 determines that the first intensity is smaller than the threshold value Th1.

  The communication apparatus 101 determines that the target person 701 is inside the building 706 from the determination result that the first intensity is smaller than the threshold Th1 and the determination result that the third intensity is equal to or greater than the threshold Th5. .

  The communication device 101 does not perform any operation other than the above.

  FIG. 36B is a diagram illustrating a state in which the subject 701 has opened the entrance 711 and has exited the site outside the building 706.

  In the state shown in FIG. 36 (b), the subject 701 opens the entrance and exits the building 706, and then the entrance is closed. Here, it is assumed that the entrance / exit is closed after the subject 701 goes out of the building 706.

  The third strength of the radio wave by the second communication device 181 by the communication device 201 is that the constituent members (doors, window glass, etc.) of the entrance / exit 711 and the wall of the building 706 exist between the communication device 201 and the communication device 101. To attenuate. Since the time required for the constituent members of the entrance / exit 711 to exist between the communication device 201 and the communication device 101 is short, the third strength is attenuated in a short time.

  The third information including the third strength in the state shown in FIG. 36B is sent to the communication apparatus 101. The communication device 101 determines that the third intensity is smaller than the threshold Th5.

  At this point, the communication device 101 determines that the first intensity is equal to or greater than the threshold Th1 as described above.

  From the determination result that the first strength is greater than or equal to the threshold Th1 and the determination result that the third strength is less than the threshold Th5, the communication device 101 detects that the subject 701 and the communication device 201 are out of the building 706. It is determined that it has occurred (first determination). For example, the communication apparatus 101 performs notification (first notification) based on the first determination. The first notification is as described above with reference to FIG.

  FIG. 37 is a conceptual diagram illustrating an example of temporal change in the first intensity and the third intensity. FIG. 37A shows the above-described first intensity, and FIG. 37B shows the above-described third intensity.

  Time Tr is the time at which the subject 701 shown in FIG. The time Ta is the time when the doorway 711 is opened most widely. The time Te is the time when the doorway 711 is automatically closed.

  The first intensity greatly increases between the time Tr and the time Ta, and becomes equal to or higher than the threshold Th1 at the time Ta or higher. After the time Ta, the first strength increases as the communication device 201 approaches the communication device 101.

On the other hand, the third intensity before the time Ta shows a tendency to decrease as the communication device 201 moves away from the second communication device 181. Thereafter, the time decreases greatly as the entrance / exit 711 is closed between the time Ta and the time Te, and is lower than the threshold Th5 after the time Te. The third intensity after the time Te shows a tendency to decrease as the communication device 201 moves away from the second communication device 181.
[Processing flow example]
A processing flow example of processing performed by the processing unit 106b of the communication apparatus 101a illustrated in FIG. 2 according to the second embodiment is the same as the processing flow example illustrated in FIG.

  And the process example of the 1st determination represented to S211 of FIG. 15 which the process part 106b of 2nd embodiment performs is as showing to FIG. 38 or FIG.

  FIG. 38 is a conceptual diagram illustrating a first determination processing example (part 1) represented in S211 of FIG. 15 performed by the processing unit 106b of the second embodiment.

  When the determination result of the process of S362 illustrated in FIG. 14 is yes, the processing unit 106b determines whether the first intensity is greater than or equal to the threshold Th1 as the process of S401. Here, the threshold value Th1 is a threshold value for the first intensity determined in advance for the process of S401.

  When the determination result obtained in S401 is yes, the processing unit 106b performs the process in S402.

  On the other hand, when the determination result obtained in S401 is no, the processing unit 106b performs the process in S401 again.

  When performing the process of S402, the processing unit 106b determines whether the above-described third intensity is less than the threshold Th5 as the same process.

  If the determination result from the process of S402 is yes, the processing unit 106b performs the process of S212 illustrated in FIG.

  On the other hand, when the determination result of the process of S402 is no, the processing unit 106b performs the process of S401 again.

  The processing unit 106b performs, as a first determination process, a combination of the process of S401 and the process of S402 as shown in FIG. It is possible to suppress a determination error for determining that the occurrence of the error occurs.

  FIG. 39 is a conceptual diagram illustrating a first determination processing example (part 2) represented in S211 of FIG. 15 performed by the processing unit 106b of the second embodiment.

  When the determination result of the process of S362 illustrated in FIG. 14 is yes, the processing unit 106b determines whether the above-described first intensity is greater than or equal to the threshold Th1 or the above-described third intensity is less than the threshold Th5 as the process of S403. Judgment is made about whether or not.

  When the determination result obtained in step S403 is yes, the processing unit 106b performs the process in step S212 illustrated in FIG.

  On the other hand, when the determination result of the process of S402 is no, the processing unit 106b performs the process of S403 again.

  The processing unit 106b can suppress the determination error that determines that an abnormality has not occurred due to the influence of noise or the like even though an abnormality has occurred in the position to be watched over, by performing the processing shown in FIG.

  The second determination processing example shown in S213 in FIG. 15 performed by the processing unit 106b of the second embodiment may be the processing example (part 1) shown in FIG. Further, the second determination processing example represented by S213 in FIG. 15 performed by the processing unit 106b of the second embodiment may be the processing example (second or third) illustrated in FIG. 40 or FIG.

  FIG. 40 is a conceptual diagram illustrating a second determination processing example (part 2) illustrated in S213 of FIG. 15 performed by the processing unit 106b of the second embodiment.

  After the process of S212 shown in FIG. 15, the processing unit 106b determines whether a period in which the first intensity is Th1 or more continues for a time T1 or more as the process of S411. Here, the time T1 is a threshold value for a predetermined time for the processing of S411. The recording unit 126 shown in FIG. 2 holds the time T1.

  The processing unit 106b performs the process of S412 when the determination result of the process of S411 is yes.

  On the other hand, the process part 106b performs the process of S411 again, when the determination result by the process of S411 is no.

  When performing the process of S412, the processing unit 106b determines whether the period in which the third intensity is less than Th5 has continued for the time T1 or longer as the same process.

  If the determination result obtained in step S412 is yes, the processing unit 106b performs the process in step S414 illustrated in FIG.

  On the other hand, the process part 106b performs the process of S411 again, when the determination result by the process of S411 is no.

  The processing unit 106b performs a combination of the processing of S411 and the processing of S412 as shown in FIG. 40 as the second determination processing, so that noise or the like is not increased although the degree of abnormality is not high. It is possible to suppress a determination error that is determined to be higher due to the influence of the above.

  FIG. 41 is a conceptual diagram illustrating a second determination processing example (part 3) illustrated in S213 of FIG. 15 performed by the processing unit 106b of the second embodiment.

  After the process of S212 shown in FIG. 15, the processing unit 106b determines whether the period in which the first intensity is Th1 or more or the third intensity is less than Th5 continues for the time T1 or more as the process of S413. Judgment is made.

  If the determination result obtained in step S413 is yes, the processing unit 106b performs the process in step S214 illustrated in FIG.

  On the other hand, the process part 106b performs the process of S413 again, when the determination result by the process of S413 is no.

The processing unit 106b performs the process shown in FIG. 41 as the second determination process, so that the degree of abnormality of the position to be watched over is not high due to, for example, the influence of noise or the like. Can be suppressed.
[effect]
Since the communication system of the second embodiment has the same configuration as the communication system of the first embodiment, the same effect as the communication system of the first embodiment can be obtained.

  In addition, the communication system of the second embodiment includes the second communication device, and when the determination is made regarding the abnormality of the position to be watched over, the radio wave received by the second radio device is emitted by the communication device. See also strength (third strength). Therefore, the communication system of the second embodiment can suppress a decrease in the determination accuracy of the abnormality of the position to be watched over due to the influence of noise or the like.

  FIG. 42 is a block diagram illustrating a configuration of a determination apparatus 101x that is the minimum configuration of the determination apparatus according to the embodiment described above.

  The determination apparatus 101x includes a reception unit 116x, a determination unit 106x, and an output unit 117x.

  The receiving unit 116x receives a radio wave carrying information including an identifier of the communication device, which is emitted by a communication device within a predetermined distance from the watching target regardless of whether the watching target is moved, and the wireless radio wave The received radio field strength is derived.

  The determination unit 106x performs a first determination as to whether the position of the watching target is within a predetermined position range from the received radio wave intensity and the identifier.

  The output unit 117x outputs the determination result of the first determination.

  The determination apparatus 101x determines whether the position of the watching target is within a predetermined position range based on the received radio wave intensity of the radio wave emitted by the communication device held by the watching target. The received radio wave intensity is a value that varies greatly depending on the distance between the watching target and the receiving unit 116x. Therefore, the determination apparatus 101x can more appropriately watch over the object to be watched over as compared to the method using GPS described in the section “Background Art” and the method described in the patent literature.

  Therefore, the determination apparatus 101x has the effects described in [Effects of the Invention] by the above configuration.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and further modifications, substitutions, and adjustments may be made without departing from the basic technical idea of the present invention. Can be added. For example, the configuration of the elements shown in each drawing is an example for helping understanding of the present invention, and is not limited to the configuration shown in these drawings.

  Further, a part or all of the above-described embodiment can be described as in the following supplementary notes, but is not limited thereto.

  In the following supplementary notes, the first determination is specifically a determination as to whether the state is shown in FIG. 7B or FIG. 10A, for example.

  The second determination is specifically a determination as to whether or not FIG. 7B or FIG. 10A is in a continuous state, for example.

  In addition, the third determination is specifically a determination as to whether the state shown in FIG. 8A or FIG.

  In addition, the fourth determination is specifically a determination as to whether the state is in the state of FIG. 8B or FIG. 10C, for example.

(Appendix A1)
Regardless of whether the watched object is moving or not, the communication device that is within a predetermined distance from the watched object receives a radio wave that carries information including the identifier of the communication device, and receives the received radio wave intensity of the radio wave. A receiving unit to derive;
A determination unit that performs a first determination as to whether the position of the watching target is within a predetermined position range from the received radio wave intensity and the identifier;
An output unit for outputting the determination result of the first determination;
A determination apparatus comprising:

(Appendix A2)
The determination result by the first determination is described in appendix A1, in which the output when the position indicates that the position exceeds the position range is a first notification made to a person who watches the watching target. Judgment device.

(Appendix A3)
For the person who watches the object to be watched when the first notification receives the A notification that is sent when the determination result of the first determination indicates that the position does not exist in the position range The determination device according to attachment A2, which is performed by sending the notification A to the management device that performs the first notification.

(Appendix A4)
The determination device according to any one of Supplementary Notes A1 to A3, wherein the position range is inside a predetermined building.

(Appendix A5)
The determination device according to any one of Supplementary Notes A1 to A4, which is installed outside the building.

(Appendix A6)
The determination apparatus according to any one of Supplementary Notes A1 to A5, which is installed inside the building.

(Appendix A7)
The determination apparatus according to any one of Supplementary Notes A1 to A6, wherein the first determination is based on a change in the received radio wave intensity associated with opening and closing of the entrance of the building.

(Appendix A8)
The determination apparatus according to any one of appendices A1 to A7, wherein the first determination is based on a change in the received radio wave intensity associated with the presence or absence of an object between the watch targets.

(Appendix A9)
The determination device according to any one of Supplementary Notes A1 to A8, wherein the object is a member constituting an entrance.

(Appendix A10)
The determination device according to attachment A9, wherein the member is a component member of a door or a window.

(Appendix A11)
The determination device according to any one of appendices A1 to A10, wherein the first determination is a determination as to whether the received radio wave intensity is equal to or greater than a first threshold value.

(Appendix A12)
Any one of Supplementary Note A1 to Supplementary Note A10, wherein the first determination is a magnitude comparison between a change amount that is a value representing a degree of change of the received radio wave intensity with time and a threshold value for the change amount. The determination apparatus described in one.

(Appendix A13)
The determination device according to attachment A12, wherein the change amount is a change amount per unit time of the received radio wave intensity.

(Appendix A14)
The determination device according to attachment A12, wherein the amount of change is an inclination of a time change in the electric reception radio wave intensity.

(Appendix A15)
The determination device according to any one of appendices A1 to A10, wherein the first determination is a determination as to whether a time during which the received radio wave intensity is equal to or greater than a second threshold continues for a predetermined time.

(Appendix A16)
The determination device according to any one of appendices A1 to A14, further performing a second determination that is a determination as to whether or not the time during which the received radio wave intensity is equal to or greater than a second threshold continues for a predetermined time.

(Appendix A17)
The determination device according to any one of appendices A1 to A10, wherein the first determination is a determination as to whether the received radio wave intensity is equal to or greater than a second threshold value.

(Appendix A18)
Additional notes A1 to A16 further comprising: performing a third determination for determining whether the communication device is located outside the position range based on whether the received radio wave intensity is equal to or higher than a second threshold value higher than the first threshold value. The determination apparatus described in any one of them.

(Appendix A19)
The determination apparatus according to any one of appendices A1 to A10, wherein the first determination is a determination as to whether the received radio wave intensity is less than a third threshold value.

(Appendix A20)
Appendices A1 to A1 to further perform a fourth determination for determining whether the communication device is moving away from the position range based on whether the received radio wave intensity is less than a third threshold that is a threshold lower than the first threshold. The determination apparatus described in any one of A19.

(Appendix B1)
Any one of the appendices A1 to A20;
A measuring unit for measuring usage information representing usage by the users to be supplied;
A sending unit for sending the usage information to a management device;
A communication device comprising:

(Appendix B2)
The communication device according to appendix B1, wherein the supply target is at least one of electric power, water, and gas.

(Appendix B3)
The communication device described in Appendix B2, which is a smart meter belonging to an AMI (Advanced Metering Infrastructure) network (Appendix C1)
Regardless of whether the watched object is moving or not, the communication device within a predetermined distance from the watched object emits a radio wave carrying information including the identifier of the communication device, and the received radio wave intensity of the radio wave is Derived,
A first determination is made as to whether the position of the watching target is within a predetermined position range from the received radio wave intensity and the identifier,
Outputting the determination result of the first determination;
Judgment device,
Create a first notification when receiving a notification A which is a notification sent from the determination device when the determination result by the first determination represents that the position is not in the position range And
A communication unit that sends the first notification created by the creation unit to a person who watches the object to be watched;
Management device.

(Appendix C2)
A deriving unit for deriving position information representing the position from the B notification sent from another communication device that sends the B notification including the identifier when the radio wave is received;
The creating unit creates the first notification including the position information derived by the deriving unit;
The management apparatus described in Appendix C1.

(Appendix C3)
A deriving unit for deriving position information indicating the position from the B notification sent from another communication device that sends the B notification including the identifier and the reception time of the B notification when the radio wave is received; In addition,
The creating unit creates the first notification including the position information derived by the deriving unit;
The management apparatus described in Appendix C1 or Appendix C2.

(Appendix C4)
The management device according to attachment C3, wherein the derivation unit derives the position information from a plurality of the B notifications and reception times of the B notifications.

(Appendix C5)
The management device according to Supplementary Note C3 or Supplementary C4, wherein the derivation unit derives the position information from the B notification sent from a plurality of the other communication devices and the reception time of each of the B notifications.

(Appendix C6)
The management device according to any one of supplementary notes C1 to C5, which receives usage amount information representing a usage amount to be supplied, which is sent from a communication device including the determination device.

(Appendix C7)
The management apparatus according to appendix C6, which determines a destination of the first notification based on the usage amount information.

(Appendix C8)
The management apparatus described in appendix C7, wherein the determination is performed by determining whether the person to watch is in the position range based on the usage amount information.

(Appendix D1)
Retained by the watched object,
When a predetermined radio wave is received, a received radio wave intensity of the radio wave is derived, and whether the position to be watched is within a predetermined position range from the received radio wave intensity and an identifier carried by the radio wave A determination device that performs a first determination, and includes a transmission unit that emits the radio wave that carries the identifier;
Communication machine.

(Appendix E1)
Regardless of whether the watched object is moving or not, the communication device within a predetermined distance from the watched object emits a radio wave carrying information including the identifier of the communication device, and the received radio wave intensity of the radio wave is A first determination is made as to whether the position to be watched is within a predetermined position range from the received radio wave intensity and the identifier, and the determination result by the first determination indicates that the position is not in the position range. A determination device that sends a first notification to the management device that sends the first notification to a person watching over the watched object when receiving a notification A that is a notification sent when
The management device;
The communication device;
A communication system comprising:

(Appendix E2)
A communication system comprising a plurality of the determination devices and a plurality of the communication devices.

(Appendix E3)
A communication system in which the communication device sends, to the management device, usage amount information representing the measured usage amount of a supply target.

(Appendix F1)
Regardless of whether the watched object is moving or not, the communication device that is within a predetermined distance from the watched object receives a radio wave that carries information including the identifier of the communication device, and receives the received radio wave intensity of the radio wave. Derived,
A first determination is made as to whether the position of the watching target is within a predetermined position range from the received radio wave intensity and the identifier,
Outputting the determination result of the first determination;
Judgment method.

(Appendix G1)
Regardless of whether the watched object is moving or not, the communication device that is within a predetermined distance from the watched object receives a radio wave that carries information including the identifier of the communication device, and receives the received radio wave intensity of the radio wave. Processing to derive,
A process of performing a first determination as to whether the position of the watching target is within a predetermined position range from the received radio wave intensity and the identifier;
Processing for outputting the determination result of the first determination;
A judgment program that causes a computer to execute

(Appendix H1)
Regardless of whether the watched object is moving or not, the communication device that is within a predetermined distance from the watched object receives a radio wave that carries information including the identifier of the communication device, and receives the received radio wave intensity of the radio wave. Derived,
A first determination is made as to whether the position of the watching target is within a predetermined position range from the received radio wave intensity and the identifier,
Outputting the determination result of the first determination;
Judgment device,
The first notification is generated when the determination result by the first determination by the device receives a notification A which is a notification sent from the determination device when the position indicates that the position exceeds the position range. And
Sending the first notification created by the creation unit to a person who watches the object to be watched;
How to send.

(Appendix I1)
In a state where it is held by the watching target,
When a predetermined radio wave is received, a received radio wave intensity of the radio wave is derived, and whether the position to be watched is within a predetermined position range from the received radio wave intensity and an identifier carried by the radio wave Performing a first determination, the determination device may receive, emitting the radio wave carrying the identifier;
Radio wave emission method.

(Appendix J1)
Regardless of whether the watched object is moving or not, the communication device that is within a predetermined distance from the watched object receives a radio wave that carries information including the identifier of the communication device, and receives the received radio wave intensity of the radio wave. A first determination is made as to whether or not the position of the watched object is within a predetermined position range from the received radio wave intensity and the identifier, and the determination result of the first determination is transmitted by communication to an AMI (Advanced Metering Infrastructure). A smart meter belonging to the AMI network, which is sent to a management device belonging to the network;
When the determination result by the first determination indicates that the position is not in the position range, a first notification is generated when a notification A that is a notification sent from the smart meter is received. Sending the first notification to a person watching over the object to be watched;
A communication system comprising:

(Appendix J2)
The management device
A deriving unit for deriving position information representing the position from the B notification sent from another communication device that sends the B notification including the identifier when the radio wave is received;
The creating unit creates the first notification including the position information derived by the deriving unit;
The communication system described in Appendix J1.

(Appendix J3)
The communication system according to appendix J2, wherein the deriving unit derives position information representing the position from the B notification and a reception time of the B notification.

(Appendix J4)
Among the supplementary notes J1 to J3, which receives the usage amount information representing the usage amount of the supply target sent from the communication device including the determination device, and determines the destination of the first notification based on the usage amount information A communication system according to any one of the above.

101, 101a Communication device 106a, 106b, 211, 306 Processing unit 111, 307 Creation unit 116a, 116b, 316a, 316b Communication unit 117x Output unit 121 Measurement unit 126, 216, 321 Recording unit 181 Second communication device 199a Line 201, 201a, 201b, 201c Communication device 206 Transmitting unit 221 Power source 226 Transmitter 231, 231c Wearing unit 232 Contacting unit 233 Belt unit 234 Contacted unit 301, 301a Management device 401 Communication system 501a, 501b Communication line 601 Notification destination 701 Target 702 Object 703 people 706 Building 711 Doorway 716 Gate

Claims (11)

Regardless of whether the watched object is moving or not, the communication device that is within a predetermined distance from the watched object receives a radio wave that carries information including the identifier of the communication device, and receives the received radio wave intensity of the radio wave. A receiving unit to derive;
A determination unit that performs a first determination as to whether the position of the watching target is within a predetermined position range from the received radio wave intensity and the identifier;
An output unit for outputting the determination result of the first determination;
A determination apparatus comprising:   The determination apparatus according to claim 1, wherein a first notification is given to a person who watches the watching target when the determination result by the first determination indicates that the position is not in the position range.   The said position range is the inside of a predetermined building, and said 1st determination is based on the change of the said received radio wave intensity accompanying opening and closing of the entrance and exit of the said building. Judgment device.   The third determination which determines whether the said communication apparatus is located in the exterior of the building which is the said position range based on whether the said received field strength is more than a 2nd threshold value is carried out among Claim 1 thru | or 3 The determination apparatus described in any one of.   5. The method according to claim 1, further comprising a fourth determination for determining whether the communication device is moving away from the position range based on whether the received radio wave intensity is less than a third threshold value. The determination device described. A determination device according to any one of claims 1 to 5;
A measuring unit for measuring usage information representing usage by the users to be supplied;
A sending unit for sending the usage information to a management device;
A communication device comprising: Regardless of whether the watched object is moving or not, the communication device that is within a predetermined distance from the watched object receives a radio wave that carries information including the identifier of the communication device, and receives the received radio wave intensity of the radio wave. Derived,
A determination device that performs a first determination as to whether the position of the watching target is within a predetermined position range from the received radio wave intensity and the identifier;
Create a first notification when receiving a notification A which is a notification sent from the determination device when the determination result by the first determination represents that the position is not in the position range And
A communication unit that sends the first notification created by the creation unit to a person who watches the object to be watched;
Management device. A deriving unit for deriving position information representing the position from the B notification sent from another communication device that sends the B notification including the identifier when the radio wave is received;
The creating unit creates the first notification including the position information derived by the deriving unit;
The management device according to claim 7.   The management device according to claim 8, wherein the deriving unit derives position information representing the position from the B notification and a reception time of the B notification.   Claims 7 thru | or which receive the usage-amount information showing the usage-amount by the user of supply sent from the communication apparatus provided with the said determination apparatus, and determine the transmission destination of said 1st notification with the said usage-amount information. The management apparatus as described in any one of Claim 9. Regardless of whether the watched object is moving or not, the communication device that is within a predetermined distance from the watched object receives a radio wave that carries information including the identifier of the communication device, and receives the received radio wave intensity of the radio wave. A first determination is made as to whether or not the position of the watched object is within a predetermined position range from the received radio wave intensity and the identifier, and the determination result of the first determination is transmitted by communication to an AMI (Advanced Metering Infrastructure). A smart meter belonging to the AMI network, which is sent to a management device belonging to the network;
When the determination result by the first determination is a notification that is sent from the smart meter when the position indicates that the position is not in the position range, a first notification is created, Sending the first notification to a person watching over the object to be watched;
A communication system comprising:

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