Watching device, watching system, server device for watching system and watching method

Abstract

To perform watching based on consumption of city water, while giving consideration to privacy.SOLUTION: A watching device 100' comprises: a flow sensor 10 installed at a secondary side from a water meter WM of a water pipe; a watching side arithmetic unit 12' which is electrically connected to the flow sensor 10, and can generate anomaly notification, when consumption of city water is zero within a preset time, based on flow rate data about a usage status of the city water detected by the flow sensor 10; a watching side storage unit 16 which is electrically connected to the watching side arithmetic unit 12', and saves the flow rate data; and a watching side communication unit 14' which is electrically connected to the watching side arithmetic unit 12', and transmits the anomaly notification to a watching side terminal 1. The watching side arithmetic unit 12', according to a request from the watching side terminal 1, generates a water flow history screen displaying history information, on the basis of the flow rate data saved in the watching side storage unit 16, and can display it on the watching side terminal 1.SELECTED DRAWING: Figure 12

Description

Technical Field

[0001] The present disclosure relates to a monitoring device, a monitoring system, a server device for a monitoring system, and a monitoring method.

Background Art

[0002] Conventionally, various monitoring systems have been proposed to enable relatives living separately, etc., to check the living conditions of monitored persons such as the elderly living in a remote area or a single-person household living alone, even from a remote location, by using network technology. For example, a monitoring system is disclosed that monitors the usage status of tap water and determines and notifies that there may be some abnormality, such as the monitored person falling down, when the use of tap water stops (Patent Document 1).

[0003] However, since the water meter is under the jurisdiction of the waterworks, it is generally difficult to use its data from the outside. Especially in recent years, from the perspective of personal information protection, allowing a third party to view privacy-related data from the outside involves risks that may cause various problems.

[0004] Separately from this, conventionally, it has been proposed to provide a monitoring camera, a human sensor, etc. as a monitoring system for a single-person household, but the monitored person may sometimes feel psychological stress from being constantly monitored.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] One object of the present disclosure is to provide a monitoring device, a monitoring system, a server device for the monitoring system, and a monitoring method based on the usage status of tap water. Another object is to provide a privacy-conscious monitoring device, a monitoring system, a server device for the monitoring system, and a monitoring method that do not use data collected by existing water meters. Note that the description of these objects and problems of the present disclosure does not prevent the existence of other objects and problems. Also, one aspect of the present disclosure does not need to solve all of these problems. Furthermore, other problems can be extracted from the description of the specification, drawings, and claims of the present disclosure. Means for Solving the Problems and Effects of the Invention

[0007] The monitoring device according to Embodiment 1 of the present disclosure is a monitoring device for a monitor to remotely monitor a person to be monitored using a monitoring-side terminal based on the usage status of tap water within the premises where the person to be monitored is located. The monitoring device includes a flow sensor installed on the secondary side of the water meter of the water pipe, a monitoring-side arithmetic unit electrically connected to the flow sensor and capable of generating an abnormality notification when the flow rate data regarding the usage status of tap water detected by the flow sensor meets a predetermined abnormality determination condition, a monitoring-side storage unit electrically connected to the monitoring-side arithmetic unit for storing the flow rate data, and a monitoring-side communication unit electrically connected to the monitoring-side arithmetic unit for transmitting the abnormality notification to the monitoring-side terminal. The predetermined abnormality determination condition is that the usage amount of tap water is zero within a preset time. The monitoring-side arithmetic unit generates a running water history screen for displaying history information based on the flow rate data stored in the monitoring-side storage unit according to a request from the monitoring-side terminal and is configured to be displayable on the monitoring-side terminal. With the above configuration, the monitor can confirm the safety of the person to be monitored with a simple determination based only on the presence or absence of flow rate, while if the monitor wants to know the details of the usage amount of tap water of the person to be monitored, the monitor can access remotely using the monitoring-side terminal to view the history information, enabling a monitoring that combines safety confirmation and detail confirmation. Also, the person to be monitored can avoid receiving mental and economic burdens such as the installation of a surveillance camera or constant monitoring.

[0008] In addition, in the monitoring device according to Embodiment 2 of the present disclosure, in the above embodiment, when the monitoring-side arithmetic unit does not meet the abnormality determination condition, it is configured to transmit a normal notification indicating normality to the monitoring-side terminal via the monitoring-side communication unit at a preset time. With the above configuration, even when there is no abnormality in the person being monitored, a sense of security can be obtained by notifying the person being monitored of the normal notification. Also, by making it possible to specify the time for sending the normal notification, it is possible to regularly check for the presence or absence of abnormalities and avoid being bothered by normal notifications.

[0009] Furthermore, in the monitoring device according to Embodiment 3 of the present disclosure, in any of the above embodiments, the abnormality determination condition includes a case where the continuous use time of tap water exceeds a certain time. With the above configuration, by issuing an abnormality notification even when tap water is left running, it is possible to respond not only to abnormal situations such as falling down with tap water running, but also to situations such as forgetting to turn off the faucet.

[0010] Furthermore, in the monitoring device according to Embodiment 4 of the present disclosure, in any of the above embodiments, the normal notification is an email.

[0011] Furthermore, in the monitoring device according to Embodiment 5 of the present disclosure, in any of the above embodiments, the flow sensor has a communication function capable of wirelessly transmitting the flow data to the monitoring-side communication unit. With the above configuration, wiring work when installing the flow sensor is unnecessary, and installation on an existing water pipe can be easily performed. Also, since there is no wiring to draw out, a waterproof structure can be easily realized.

[0012] Furthermore, in the monitoring device according to Embodiment 6 of the present disclosure, in any of the above embodiments, the flow sensor is of the clamp-on type. With the above configuration, when attaching the flow sensor, it is not necessary to temporarily cut off the water supply and cut and fix the water pipe, and it is possible to easily attach it to the existing water pipe from the outside. Also, the advantage is obtained that replacement and maintenance work can be easily performed by detaching and attaching.

[0013] Furthermore, in the monitoring device according to Embodiment 7 of the present disclosure, in any of the above embodiments, the flow rate sensor is battery-powered. With the above configuration, the flow rate sensor is cordless, which is advantageous in terms of simplifying installation, waterproofing, and dustproofing.

[0014] Furthermore, in the monitoring device according to Embodiment 8 of the present disclosure, in any of the above embodiments, the flow rate sensor has a waterproof specification. With the above configuration, the flow rate sensor can be operated maintenance-free.

[0015] Furthermore, in the monitoring device according to Embodiment 9 of the present disclosure, in any of the above embodiments, the flow rate sensor is provided adjacent to the water meter in the water measuring box where the water meter is installed. With the above configuration, since the flow rate sensor can be installed in the water measuring box where the water meter is installed, there is no need to prepare a place for installing the flow rate sensor, and an installation space can be easily secured, and there is an advantage that the flow rate sensor does not become an obstacle after installation.

[0016] Furthermore, in the monitoring device according to Embodiment 10 of the present disclosure, in any of the above embodiments, the flow rate sensor is 120 mm or less. With the above configuration, it is easy to install the flow rate sensor as a small-sized one into the water measuring box where the water meter is installed.

[0017] Furthermore, in the monitoring device according to Embodiment 11 of the present disclosure, in any of the above embodiments, the flow rate sensor is a flow switch. With the above configuration, a monitoring device based on the presence or absence of use can be configured at low cost without calculating the usage amount of tap water.

[0018] Furthermore, in the monitoring device according to Embodiment 12 of the present disclosure, in any of the above embodiments, the person to be monitored is a single-person household or a household in need of care.

[0019] Furthermore, in the monitoring device according to Embodiment 13 of the present disclosure, in any of the above embodiments, the flow rate data includes the presence or absence of running tap water.

[0020] Furthermore, the monitoring system according to Embodiment 14 of the present disclosure is a monitoring system for a caregiver to remotely monitor a person under care using a caregiver terminal based on the usage status of tap water within the site where the person under care is located. The monitoring system includes a flow sensor installed on the secondary side of the water meter of the water pipe, and a caregiver-side communication unit that is electrically connected to the flow sensor and sends out flow data regarding the usage status of tap water detected by the flow sensor to the outside. A server device includes a server-side communication unit that communicates with the caregiver-side communication unit, a server-side arithmetic unit that can generate an abnormality notification when the flow data received from the caregiver-side communication unit by the server-side communication unit meets a predetermined abnormality determination condition, and a server-side storage unit that is electrically connected to the server-side arithmetic unit and stores the flow data. A caregiver terminal communicates with the server-side communication unit and can receive the abnormality notification generated by the server-side arithmetic unit. The predetermined abnormality determination condition is that the usage amount of tap water is zero within a preset time. The server-side arithmetic unit generates a running water history screen for displaying history information based on the flow data stored in the server-side storage unit according to a request from the caregiver terminal and is configured to be displayable on the caregiver terminal. With the above configuration, the caregiver can confirm the safety of the person under care with a simple determination based only on the presence or absence of flow, and when the caregiver wants to know the details of the usage amount of tap water of the person under care, the caregiver can access remotely using the caregiver terminal to view the history information, enabling a monitoring that combines safety confirmation and detail confirmation.

[0021] Furthermore, in another embodiment of the present disclosure, in any of the above embodiments, when the server-side arithmetic unit does not meet the abnormality determination condition, it is configured to send a normal notification indicating normality to the caregiver terminal via the server-side communication unit at a preset time. With the above configuration, by notifying the person under care of a normal notification even when there is no abnormality, a sense of security can be obtained. Also, by making it possible to specify the time when the normal notification is sent, it is possible to periodically check for the presence or absence of abnormalities and avoid situations where the caregiver is troubled by normal notifications.

[0022] Furthermore, in another aspect of the present disclosure, in any of the above aspects, the monitoring system according to this other aspect is configured such that the server device transmits a detection request from the server-side communication unit to the flow rate sensor, requesting the flow rate sensor to execute detection of the flow rate data according to the predetermined abnormality determination condition, and the monitoring device responds to receiving the detection request at the monitoring-side communication unit, detects the flow rate data, and transmits it to the server device. With the above configuration, the server device can request the monitoring device for flow rate data at a predetermined timing according to the abnormality determination condition, thereby reducing the load on the monitoring device side.

[0023] Furthermore, in another aspect of the present disclosure, in any of the above aspects, the monitoring system according to this other aspect includes a timing specifying unit in the server-side arithmetic unit that accepts specification of the timing for transmitting the normal notification to the monitoring-side terminal. With the above configuration, the monitoring side can avoid being troubled by notifications by defining the timing for receiving the notifications.

[0024] Furthermore, in another aspect of the present disclosure, in any of the above aspects, the abnormality notification includes identification information for identifying the person under monitoring, the detection time of the abnormality, and an explanation of the content of the abnormality.

[0025] Furthermore, in another aspect of the present disclosure, in any of the above aspects, in response to a request from the monitoring-side terminal, the server-side arithmetic unit refers to the water usage amount recorded in the server-side storage unit, generates a running water history screen for displaying the history information of the water usage amount, and is configured to display it on the monitoring-side terminal. With the above configuration, it becomes possible to confirm the past water usage amount in real time when it is necessary to check it.

[0026] Furthermore, the server device for the monitoring system according to Embodiment 15 of the present disclosure is a server device for a monitoring system for a monitor to remotely monitor a person under monitoring using a monitoring-side terminal based on the usage status of water in the premises where the person under monitoring is located. The server device includes a server-side communication unit for receiving, from a monitoring-side communication unit of a monitoring device, flow rate data regarding the usage status of tap water detected by a flow rate sensor installed on the secondary side of a water meter of a water pipe in the premises, a server-side arithmetic unit capable of generating an abnormality notification when the flow rate data received from the monitoring-side communication unit by the server-side communication unit meets a predetermined abnormality determination condition, and a server-side storage unit electrically connected to the server-side arithmetic unit for storing the flow rate data. The abnormality notification generated by the server-side arithmetic unit is configured to be transmissible from the monitoring-side communication unit to the monitoring-side terminal. The predetermined abnormality determination condition is that the usage amount of tap water is zero within a preset time. The server-side arithmetic unit generates a running water history screen for displaying history information based on the flow rate data stored in the server-side storage unit according to a request from the monitoring-side terminal and is configured to be displayable on the monitoring-side terminal.

[0027] Furthermore, the monitoring method according to Embodiment 16 of the present disclosure is a monitoring method in which a monitor who monitors a person to be monitored uses a monitoring terminal to remotely monitor the person to be monitored based on the usage status of water in the site where the person to be monitored is located. The method includes: a step of detecting flow rate data related to the usage status of tap water with a flow rate sensor installed on the secondary side of a water meter of a water pipe; a step of, based on the detected flow rate data, generating an abnormality notification when a calculation unit electrically connected to the flow rate sensor detects that the usage amount of tap water included in the flow rate data is zero within a preset time; a step of transmitting, by a communication unit, the abnormality notification generated by the calculation unit to the monitoring terminal; and a step of generating, by the calculation unit, a running water history screen for displaying history information based on the flow rate data stored in a storage unit according to a request from the monitoring terminal and displaying the screen on the monitoring terminal. Thereby, the monitor can confirm the safety of the person to be monitored with a simple determination based only on the presence or absence of flow rate, and when the monitor wants to know the details of the usage amount of tap water of the person to be monitored, the monitor can access remotely using the monitoring terminal to view the history information, enabling monitoring that combines safety confirmation and detailed confirmation.

[0028] Furthermore, the monitoring method according to Embodiment 17 of the present disclosure is a monitoring method in which a monitor who monitors a person to be monitored uses a monitoring terminal to remotely monitor the person to be monitored based on the usage status of water in the site where the person to be monitored is located. The method includes: a step of detecting flow rate data related to the usage status of tap water with a flow rate sensor installed on the secondary side of a water meter of a water pipe; a step of, based on the detected flow rate data, generating an abnormality notification when a calculation unit electrically connected to the flow rate sensor detects that the person to be monitored has left tap water running continuously for a certain period of time or more in an emergency; a step of transmitting, by the communication unit, the abnormality notification generated by the calculation unit to a pre-requested supporter; a step of the supporter making a call to a pre-registered phone number of the person to be monitored; and a step of dispatching a person in charge to the site where the person to be monitored is located when there is no response to the call. Thereby, the monitoring device can be used as an alternative to an emergency reporting button for reporting danger from the side of the person to be monitored.

[0029] Furthermore, in another aspect of the present disclosure, the monitoring method according to any of the above aspects further includes, prior to the step of detecting the flow rate data with the flow rate sensor, a step of receiving, by the flow rate sensor, a detection request to execute the detection of the flow rate data according to the predetermined abnormality determination condition.

Brief Description of the Drawings

[0030]

Figure 1

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Modes for Carrying Out the Invention

[0031] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. However, the embodiments shown below are examples for embodying the technical idea of the present disclosure, and the present invention is not limited to the following. Also, this specification does not at all identify the members shown in the claims with the members of the embodiments. In particular, dimensions, materials, shapes, relative arrangements, etc. of the components described in the embodiments are not intended to limit the scope of the present disclosure only to those, but are merely illustrative examples. Note that the sizes and positional relationships of the members shown in each drawing may be exaggerated for clarity of explanation. Further, in the following description, the same names and reference numerals indicate the same or equivalent members, and detailed descriptions will be omitted as appropriate. Furthermore, each element constituting the present invention may be configured such that a plurality of elements are formed of the same member and one member serves as a plurality of elements, or conversely, the functions of one member may be shared by a plurality of members.

[0032] The monitoring device, monitoring system, server device for the monitoring system, and monitoring method of the present disclosure can be used to simply confirm the safety of a person to be monitored, such as an elderly person or a person living alone, from a remote location by a monitor based on the usage status of tap water, that is, for monitoring. Hereinafter, an example in which a non-cohabiting family monitors an elderly person will be described, but the present disclosure is not limited to this usage mode. For example, it can also be used in a mode where a parent monitors a child living alone in the city from the countryside, or in a mode where a parent is monitored from a distant place when leaving a cohabiting parent temporarily at home due to travel or business trips, etc.

[0033] In the present disclosure, the person to be monitored corresponds to a single-person household or a household requiring care. Here, single-person households include not only complete single-person households but also temporary single-person households. For example, although there are cohabiting family members, as a result of the temporary absence of cohabiting family members due to business trips or travel, etc., the household becomes a single-person household during that period, or a household that spends time alone while being absent for work, etc. during the day also has a period of being temporarily alone, so there is a need for monitoring. The present disclosure enables family members, etc. to monitor such temporary single-person households from a remote location. [Embodiment 1]

[0034] Embodiment 1 of the present disclosure, a monitoring system 1000, is shown in FIG. 1, and an example of applying this monitoring system 1000 to a plurality of buildings is shown in FIG. 2. As shown in these figures, the monitoring system 1000 includes one or more monitoring devices 100 respectively installed in the residences where the persons to be monitored live, one or more monitoring-side terminals 1 respectively connected to each monitoring device 100 through a network, and a server device 20 that generates user screens such as an abnormal notification or a normal notification to the monitoring-side terminal 1 and a running history screen 50 to be displayed on the terminal-side display screen of the monitoring-side terminal 1, and transmits them to the monitoring-side terminal 1. (Monitoring device 100)

[0035] The monitoring device 100 includes a flow rate sensor 10, a monitoring-side arithmetic unit 12, and a monitoring-side communication unit 14. (Flow rate sensor 10)

[0036] The flow rate sensor 10 is installed on the secondary side of the water meter WM of the water pipe, that is, inside the site on the downstream side of the water meter WM. The flow rate sensor 10 detects and outputs flow rate data regarding the usage status of tap water within the site. Note that the site typically refers to the usage status of tap water indoors in a building, but is not limited to this, and includes, for example, detached buildings, storage sheds other than the main building, or sprinkling in the garden. Also, the usage status of tap water includes determining the flow rate of tap water or only whether tap water has flowed without measuring the flow rate.

[0037] As the flow rate sensor 10, a known flow meter capable of detecting the flow rate of the liquid passing through the branch pipe branched from the water pipe or the water pipe can be appropriately used. For example, a turbine type flow meter using a tangent flow impeller or an axial flow impeller, an ultrasonic type flow meter, an electromagnetic type flow meter, a Coriolis type flow meter, a thermal type flow meter, a Karman vortex type flow meter, a float type flow meter, a differential pressure type flow meter, etc. can be used.

[0038] Alternatively, the flow sensor may be of the clamp-on type. By using a clamp-on type flow sensor, when attaching the flow sensor to the water pipe, it is possible to easily attach it externally to the existing water pipe. As a result, the work of temporarily shutting off the water supply, cutting the water pipe, and then fixing the flow sensor can be eliminated. Also, for replacement and maintenance work, the advantage is obtained that the clamp-on type flow sensor can be easily attached and detached.

[0039] Also, the installation position of the flow sensor is not particularly limited as long as it is on the secondary side of the water meter WM of the water pipe, but preferably, it is installed in the water measuring box where the water meter is installed. Fig. 13 shows how the clamp-on type flow sensor 10 is installed in the water measuring box MB. This makes it easy to add a flow sensor to the existing equipment without separately providing a space for installing the flow sensor. Also preferably, the flow sensor is installed adjacent to the water meter. This makes it easy to access the flow sensor by opening the lid of the water measuring box. Also, there is no need to prepare a place for installing the flow sensor, the installation space can be easily secured, and furthermore, the advantage is obtained that the flow sensor does not get in the way after installation.

[0040] Also in this case, the outer shape and size of the flow sensor can be made to be of a size that can be accommodated in the flow meter box. The size of the flow meter box is generally determined by the caliber of the water pipe and the load-bearing capacity, but it is preferable to use a small-sized flow sensor so as not to interfere with the water meter. Preferably, the length is 120 mm or less. More preferably, it is 60 mm to 120 mm. This makes it easy to install the flow sensor as a small-sized one into the water measuring box where the water meter is arranged.

[0041] Also, the flow sensor may be battery-powered. This makes the flow sensor cordless, which is advantageous in terms of simplifying installation such as wiring work and in terms of waterproofing and dustproofing. Furthermore, the flow sensor preferably has a waterproof design. This allows the flow sensor to be operated maintenance-free. With such a configuration, in addition to being able to easily install the flow sensor on existing water pipes, wiring can be eliminated, and since there is no wiring to be drawn out, a waterproof structure can be easily realized.

[0042] Also, as the flow sensor, a flow switch that only discriminates the presence or absence of water flow, omitting the flow measurement function, may be used. This provides the advantage of being able to inexpensively configure a monitoring device based only on the presence or absence of the use of tap water without calculating the amount of tap water used. When referring to the flow sensor in the present disclosure, it is used in the sense of including such a flow switch or flow sensor that can only determine the presence or absence of water flow.

[0043] Furthermore, the flow sensor may be provided with a communication function capable of wirelessly transmitting the detected flow data to the monitoring-side communication unit. This eliminates the need for wiring work when installing the flow sensor, making it easy to install on existing water pipes. Also, since there is no wiring to be drawn out, a waterproof structure can be easily realized.

[0044] Flow sensors of the type that can output the detected flow data as a pulse output are common. However, if necessary, a converter for converting the flow data of the analog signal detected by the flow data into a data format that is easy to handle in subsequent processing, such as converting it into a digital signal for outputting from the monitoring-side communication unit 14 to the outside, can also be added to the monitoring device 100. Known components such as an A / D converter that converts the analog signal of the flow sensor into a digital signal can be appropriately used for such a converter.

[0045] For the electrical connection between the flow sensor 10 and the monitoring-side arithmetic unit 12, existing connection methods can be used. In the example of FIG. 1, a wired connection is made via the path indicated by the dashed line. When directly connecting the flow sensor 10 to the monitoring-side arithmetic unit 12 in this way, a communication interface is not essential. On the other hand, the electrical connection between the flow sensor 10 and the monitoring-side arithmetic unit 12 can also be made by data communication via a communication interface.

[0046] Also, in a configuration where a communication interface is provided in the flow sensor, the power for driving the communication interface may be supplied by drawing an electric wire from the outside, by battery driving as described above, or by providing a power generation function. For example, a turbine can be incorporated into the flow sensor, and the turbine can be rotated by the tap water flowing through the flow sensor to generate electricity, so as to secure the power for driving the communication interface. With this configuration, the flow sensor can be made independent of an external power source, and it is possible to eliminate the trouble of battery replacement compared to the case of battery driving.

[0047] In the present disclosure, "electrically connecting" a plurality of members such as the flow sensor and the monitoring-side arithmetic unit includes both the case of direct connection and the case of connection with some member intervening. Also, the connection method includes the case of wired connection, the case of wireless connection, and the case of a mixture of these. (Monitoring-side arithmetic unit 12)

[0048] The monitoring device 100 may also include a monitoring-side arithmetic unit 12 for controlling and integrating each member such as the monitoring-side communication unit 14 and the flow sensor 10. The monitoring-side arithmetic unit 12 is connected to the flow sensor 10 and the monitoring-side communication unit 14 and controls them. (Monitoring-side communication unit 14)

[0049] The monitoring-side communication unit 14 is a component for transmitting external flow rate data related to the flow rate of tap water detected by the flow rate sensor 10. In the example of FIG. 1, the monitoring-side communication unit 14 is electrically connected to the flow rate sensor 10 via the monitoring-side arithmetic unit 12. This monitoring-side communication unit 14 is controlled by the monitoring-side arithmetic unit 12. The monitoring-side communication unit 14 connects to a network line to perform data communication with the server device 20. In the present disclosure, the method by which a communication unit such as the monitoring-side communication unit 14 connects to a network line can be a method of directly connecting to an external network by using the communication unit as a communication device such as a router or a modem, or as a data communication module that connects to a public network line using a SIM. Also, it may be connected to an existing LAN line provided indoors that is connected to an external network. In this case, the communication unit or the like can be an Ethernet (registered trademark) communication interface or the like. Also, existing wired LANs or wireless LANs within the site can be appropriately used.

[0050] In the example of FIG. 1, the monitoring-side communication unit 14 and the monitoring-side arithmetic unit 12 are shown as separate components for the sake of explanation, but these may be integrated. For example, the functions of the monitoring-side communication unit and the monitoring-side arithmetic unit can also be realized as a system incorporating a communication module such as an SoC. (Server device 20)

[0051] The server device 20 includes a server-side communication unit 24, a server-side arithmetic unit 22, and a server-side storage unit 26. For such a server device 20, a general-purpose computer equipped with a communication function can be used. In this case, the server-side communication unit 24 can be a communication interface, the server-side arithmetic unit 22 can be a CPU or an MPU, and the server-side storage unit 26 can be a hard disk, an SSD, or the like. (Server-side communication unit 24)

[0052] The server-side communication unit 24 communicates with the monitoring-side communication unit 14. The communication between the server-side communication unit 24 and the monitoring-side communication unit 14 is carried out through a public network line such as the Internet line. Specifically, the flow rate data regarding the flow rate of the tap water detected by the flow rate sensor 10 installed on the secondary side of the water meter WM of the water pipe in the building where the person to be monitored is located is transmitted and received from the monitoring-side communication unit 14 of the monitoring device 100. (Server-side calculation unit 22)

[0053] Based on the flow rate data received by the server-side communication unit 24 from the monitoring-side communication unit 14, when the server-side calculation unit 22 meets a predetermined abnormality determination condition, it generates an abnormality notification. Here, the predetermined abnormality determination condition includes the case where the usage amount of tap water is zero within a preset time. For example, specify the morning time zone, noon time zone, evening time zone, etc. when it is expected to use tap water for things like using the toilet or preparing meals. If no tap water is used within these specified times, there may be some abnormality, such as the person being bedridden or having fainted. It is assumed that such a situation may occur, and it is determined as an abnormality and an abnormality notification is generated.

[0054] Alternatively, as the usage situation of tap water, the flow rate of tap water can be measured, compared with the preset tap water usage amount, and when it exceeds a predetermined abnormality determination condition, an abnormality notification may be generated. (Detection request)

[0055] Also, according to the abnormality determination condition, the server device 20 may be configured to transmit a detection request from the server-side communication unit 24 to request the flow rate sensor 10 to execute the detection of the flow rate data. In response to this, when the monitoring device 100 receives the detection request by the monitoring-side communication unit 14, it can execute the detection of the flow rate data and transmit it to the server device 20. With such a configuration, the server device 20 can define the collection timing of the flow rate data, thus reducing the load on the monitoring device 100 side. (Abnormality determination condition)

[0056] Here, the predetermined abnormality determination condition can be whether or not tap water is used within a specific time period during the day according to the daily life pattern of the person under surveillance. If the use of tap water is not detected, it is determined as abnormal, and conversely, if the use of tap water is detected, it is determined as normal. In this way, by determining normality or abnormality only based on the presence or absence of tap water use, it becomes extremely easy to confirm the safety of the person, and monitoring can be easily realized.

[0057] For example, it is assumed that tap water is used for meal preparation in accordance with the meal time. Therefore, it is assumed that tap water is used between 6:00 am and 9:00 am, including ±1 hour before and after the breakfast time, for example, if the breakfast time is from 7:00 am to 8:00 am, and the time period (6:00 am to 9:00 am) is specified as a condition. When there is no tap water usage amount in the time period specified in this way, it can be determined as abnormal and an abnormality notification can be issued.

[0058] Also, the abnormality determination condition may include the amount of tap water used. That is, not only the presence or absence of tap water use, but also the flow rate of the used tap water can be added to the abnormality determination condition. Based on how much tap water usage amount is assumed within a specific time period during the day, when the usage amount is less or conversely more, that is, when it exceeds the specified conditions, it can be determined as abnormal, and when it does not exceed the conditions, it can be determined as normal.

[0059] For example, it is assumed that 10 L of tap water is used during the above-mentioned meal time period, and together with the time period, the tap water usage amount (0 L to 10 L) is specified as a condition. As a result, in addition to determining that it is abnormal when the tap water usage amount is zero, when the tap water usage amount exceeds the upper limit value, it is possible to issue an abnormality notification assuming that there may be a failure to turn off the tap of the tap water.

[0060] Such abnormality determination conditions may be specified in multiple. For example, the lunch time period and dinner time period may be set in the same way. Also, according to the time for taking a bath or using the toilet, the time period and the tap water usage amount may be specified. Furthermore, according to each abnormality determination condition, the length of the time period and the magnitude of the tap water usage amount can also be changed.

[0061] In addition to, or instead of, the flow rate, the continuous usage time during which tap water is continuously flowing may be included in the abnormality determination conditions. For example, when tap water has been flowing continuously for one hour or more, in addition to the case of forgetting to turn off the tap water, it is also conceivable that some abnormality has occurred, such as falling down while using the tap water. Therefore, even when the continuous usage time of tap water reaches a predetermined time or more (for example, one hour or more), it may be configured to determine it as an abnormality and generate an abnormality notification.

[0062] In addition, by adding the water usage amount, continuous usage time, etc. to the abnormality determination conditions, it becomes possible to use it as a substitute for the so-called emergency call button, where the person being monitored intentionally causes an abnormality to notify the monitor. For example, when being trapped for some reason during toilet use or while cleaning the bathroom, by fully opening the faucet and keeping it open for a long time, an abnormality notification can be intentionally generated to notify the monitor, enabling the monitor, security company, or cooperating agencies such as neighboring residents, newspaper delivery persons, postal workers, and local government officials who have been previously requested to monitor, or the on-site responsible person to be called to the scene. As a result, when a person being monitored, such as an elderly person living alone, is trapped and wants to seek help, even if they do not have a mobile phone or the like at hand, if there is a tap water faucet, they can use it to generate an abnormality notification and seek rescue. In this way, it becomes possible to fulfill the function of an emergency call button that provides peace of mind for the person being monitored. It becomes possible to obtain the same peace of mind as if emergency call buttons were installed everywhere in the building or site as many as the number of tap water faucets and cocks. (Server-side storage unit 26)

[0063] The server - side storage unit 26 records the water consumption based on the flow rate data. Also, the server - side storage unit 26 records the settings such as the abnormal determination conditions and the flow rate data detected by the flow rate sensor 10. The flow rate data records, for example, the serial number, the start time, the end time, the flow rate, and the continuous running water time each time the flow rate sensor 10 detects running water. The storage period of the flow rate data is a preset period, such as the past three months or one year. Alternatively, when the data is full, it may be configured to delete the old data and overwrite and save it. For such a server - side storage unit 26, a non - volatile semiconductor memory, a fixed disk, etc. can be used. (Monitoring - side terminal 1)

[0064] As shown in FIG. 2, each monitoring device 100 is associated with a monitoring - side terminal 1 owned by a monitor (e.g., a family member) who wants to monitor a person to be monitored (e.g., an elderly person) living in the residence where the monitoring device 100 is installed.

[0065] Multiple monitoring - side terminals 1 can be set. The multiple monitoring - side terminals 1 may be owned by the same monitor or may be respectively held by different monitors (e.g., the spouse, children, or grandchildren of the elderly person). Such a monitoring - side terminal 1 can use existing portable terminals such as smartphones and mobile phones, and communication - capable devices such as computers. Typically, a portable terminal such as a smartphone held by the monitor with a dedicated user application installed, a terminal that accesses a specific website through an Internet browser or the like to execute a web application, or a terminal that accesses a dedicated website to view the display screen, etc. corresponds to the monitoring - side terminal 1. (Abnormal notification)

[0066] The monitoring terminal 1 communicates with the server-side communication unit 24 and receives an abnormality notification generated by the server-side calculation unit 22. With such a configuration, by adding the flow sensor 10 separately from the existing water meter WM, it becomes possible to remotely monitor the person under care based on the usage amount of tap water. In particular, without using facilities such as surveillance cameras and human sensors that the person under care may feel uncomfortable with, monitoring is realized only using daily information such as the usage amount of tap water, and without using the data collected by the existing water meter WM, information is also prevented from being collected by the waterworks etc. by using individually arranged flow sensors, and privacy-conscious monitoring can be realized.

[0067] Examples of the abnormality notification include cases where tap water usage is not detected during a specified time period, cases where the usage amount of tap water exceeds a specified amount, etc.

[0068] Also, as the transmission destination of the abnormality notification, in addition to the family members of the person under care who are the monitors, i.e., siblings and relatives, a third party may be included as necessary. Specifically, an abnormality notification may be automatically transmitted to a pre-specified or contracted operator such as a hospital, a nursing station, a security company, etc., and they may be requested to check on the condition of the person under care on behalf of the family. This enables appropriate responses and actions such as checking whether there is any abnormality with the person under care, actually visiting and visually confirming, and transporting to the hospital if necessary, on behalf of family members who may have difficulty responding due to work or distance in case of an emergency, and greater peace of mind can be obtained.

[0069] Also, the content of the abnormality notification may be changed according to the abnormality determination conditions. Specifically, it is also possible to change the text of the notification message according to the content of the abnormality determination conditions, or to add or change the notification destination. For example, when the water usage amount is zero, there is a possibility that the person being monitored has fallen, and the urgency is high. Therefore, the notification is sent with a high importance level, and an abnormality notification is also sent to the family and the security company or affiliated organizations. On the other hand, when the water usage amount is too high and exceeds the abnormality determination conditions, there is a possibility of forgetting to turn off the faucet. Therefore, it may be set to send a notification only to the security company or the like. The security company or the like can be pre-contracted to visit the building of the person being monitored and convey the fact of forgetting to turn off the faucet. In this way, by changing the text of the notification message according to each situation, or adding or changing the notification destination, it is possible to flexibly respond to different abnormalities. (Normal notification)

[0070] Also, the server-side arithmetic unit 22 can be configured to compare the actual water usage amount with the preset water usage amount based on the flow rate data, and when it is within a predetermined range, generate a normal notification indicating normality and transmit it to the monitoring terminal 1 via the server-side communication unit 24. With such a configuration, even when no abnormality is observed, by issuing a normal notification, the monitoring side can receive the notification and feel at ease.

[0071] Such normal notifications and abnormality notifications include identification information for identifying the person being monitored, the detection time of the abnormality, and the content of the abnormality or normality notification. The identification information of the person being monitored can be the name, house name, address, etc. of the person being monitored. The house name may be arbitrarily specified by the monitor, such as "father's house" or "grandmother's house". This makes it easier to distinguish at a glance a plurality of persons being monitored whose monitors live in different places.

[0072] As the content of the normal notification, for example, the text can be "Water flow has been confirmed within the specified time." On the other hand, as the content of the abnormality notification, for example, the text can be "Water flow has not been confirmed within the specified time.", "The continuous water flow time has exceeded 60 minutes.", etc.

[0073] In addition, email can be preferably used for normal notifications and abnormal notifications. The caregiver can receive normal notifications and abnormal notifications as emails on the caregiver terminal 1 he / she has, and appropriately grasp the situation of the person under care. Here, as an example of the abnormal notification 30A when the water usage amount is not confirmed, the text of the email is shown in FIG. 3. The abnormal notification 30A shown in this figure includes "○○'s house" as the identification information of the person under care in the subject line of the email. Here, the subject line is set as "○○'s house Water flow amount alert". In addition, the content of the abnormality is added to the text of the email. Here, following "Alert email to XX-sama which includes the caregiver's name", the text "Water flow was not confirmed within the specified time." is included as the content of the abnormality. In addition, the detection time of the abnormality and the identification information of the person under care are also added to the body of the email. Here, following the content of the abnormality notification, "○○-sama's house: 2023-10-21 18:09:15" is displayed.

[0074] In addition, as an example of the abnormal notification 30B when the water usage amount exceeds the abnormal determination condition, the text of the email is shown in FIG. 4. The abnormal notification 30B shown in this figure also includes the identification information of the person under care in the subject line of the email. Also, the points of adding the caregiver's name, the detection time of the abnormality, and the identification information of the person under care to the body of the email are the same as in FIG. 3. Here, as the content of the abnormality notification, the text "The continuous water flow time has exceeded 60 minutes." is displayed.

[0075] On the other hand, as an example of the normal notification 30C, the text of the email is shown in FIG. 5. The normal notification 30C shown in this figure also includes the identification information of the person under care in the subject line of the email, similar to the above-mentioned abnormal notification. Also, the caregiver's name, the detection time of normality, and the identification information of the person under care are added to the body of the email. Here, as the content of the notification of normality, the text "Water flow was confirmed within the specified time." is displayed.

[0076] The text and layout of such abnormal notifications 30A, 30B and normal notification 30C in the e-mail can be arbitrarily changed. For example, using an html e-mail, abnormal notifications and normal notifications may be displayed in different colors. Further, a telephone number may be displayed so that the caregiver can call the building immediately, or a link for starting an application for making a call with a smartphone or the like, or a link for starting a video call application may be set.

[0077] In addition, normal notifications and abnormal notifications can use known push-type notifications, such as pop-up notifications, instead of or in addition to e-mails. (Monitoring program)

[0078] In this way, the caregiver can monitor the person under care with abnormal notifications or normal notifications notified to the caregiver terminal 1. Also, the timing of notifications such as such abnormal notifications and the abnormal determination conditions can be specified to the server device 20. The various functions and members for realizing the monitoring system 1000 are preferably realized not only by being configured with dedicated hardware but also as functions of a monitoring program executed by the server device 20. The caregiver operates the caregiver terminal 1 to access a predetermined IP address or URL for connecting to a monitoring site executed and operated by the server device 20, and inputs necessary information for operating the monitoring device 100 such as setting of abnormal determination conditions, or can check the past history of the water usage amount of the person under care. Examples of the GUI of such a monitoring program are shown in FIGS. 6 to 10. The monitoring program shown in these figures can switch the screen by switching the upper tabs. FIG. 6 shows an example of a running water detection time zone setting screen 40, FIG. 7 shows a running water history screen 50, FIG. 8 shows a history search result screen 58, FIG. 9 shows a notification history screen 60, and FIG. 10 shows an example of a notification setting screen 70. The caregiver can access the monitoring site for login using the caregiver terminal 1 and enter the user ID and password to enter the monitoring site. The caregiver is issued with an individual user ID and password in advance, and access restrictions are set so that only the information of the contracted person under care can be accessed in association with the user ID (Timing Specifying Unit)

[0079] The server-side arithmetic unit 22 can include a timing specifying unit that receives a specification of the timing for transmitting a normal notification to the caregiver terminal 1. Thereby, the caregiver side can avoid being troubled by notifications by defining the timing of receiving notifications (Running Water Detection Time Zone Setting Screen 40)

[0080] The timing specifying unit is preferably realized as a function of the monitoring program executed by the server device 20 as described above. The monitor operates the monitoring-side terminal 1 to access a predetermined IP address or URL for connecting to the server device 20 and inputs it to the timing specifying unit. As an example of the timing specifying unit, the GUI of the running water detection time zone setting screen 40 of the monitoring program is shown in FIG. 6. The running water detection time zone setting screen 40 shown in this figure individually specifies the running water detection time zone for monitoring the usage amount of tap water by specifying the start time and the end time. A plurality of running water detection time zones can be set. In the example of FIG. 6, 24 running water detection time zones can be directly input numerically in tabular form, but the number of settable running water detection time zones and the specifying method are not limited to this method. For example, the start time and the end time can also be specified in the form of a pull-down menu.

[0081] Also, in the specified running water detection time zone, the water usage amount may be defined to determine an abnormality when the predetermined water usage amount is exceeded. For example, the upper limit value of the water usage amount may be specified for each running water detection time zone, or the upper limit values of the water usage amounts in each running water detection time zone may be specified collectively. (Running water history screen 50)

[0082] In response to a request from the monitoring-side terminal 1, the server-side arithmetic unit 22 can be configured to generate a running water history screen 50 that displays the history information of the water usage amount by referring to the water usage amount recorded in the server-side storage unit 26 and display it on the monitoring-side terminal 1. With such a configuration, it becomes possible to confirm the past water usage amount in real time when it is desired to confirm it.

[0083] An example of the running history screen 50 is shown in FIG. 7. The running history screen 50 shown in this figure includes a running graph display column 52, a running detail display column 54, and a history search column 56. In the running graph display column 52, the water consumption up to a certain time in the past is displayed as a running graph based on the timing when the monitoring terminal 1 accesses the running history screen 50. In the example of FIG. 7, the water consumption is displayed in 10-minute units, but it can be set to any time unit such as 1-hour units or 5-minute units.

[0084] In the running detail display column 54, for each event where running water is detected, the serial number, start time, end time, flow rate, and continuous running water time are displayed in tabular form.

[0085] In the history search column 56, the range of the history to be displayed is specified. In the example of FIG. 7, the reference date and the number of days after the date are specified numerically, and the "Send" button 57 is pressed. As a result, a history search result screen 58 as shown in FIG. 8 is displayed. On this history search result screen 58, the flow rate data for the specified period is displayed in a list. Specifically, for each event where running water is detected, the serial number, start time, end time, flow rate, continuous running water time, and the number of pulses output from the flow rate sensor 10 are displayed in tabular form. The flow rate and the number of pulses are correlated by the preset pulse weight of the flow rate sensor 10. Note that the method of setting the search conditions in the history search column 56 is not limited to the example of FIG. 7. For example, the reference date and the number of days after that date to be displayed can be specified numerically, or both the start and end of the period to be displayed can be specified by date. (Transmission history screen 60)

[0086] Furthermore, an example of the transmission history screen 60 is shown in FIG. 9. On the transmission history screen 60, it is possible to check the history of abnormal notifications and normal notifications. Here, the transmission time, the flow rate, and the transmission content are displayed in a tabular format. For example, when a normal notification is made according to the abnormal determination condition, "Normal water flow has been confirmed." is displayed as the transmission content. When an abnormal notification is made, depending on the type of abnormality, "Water flow could not be confirmed within the time limit.", "There has been continuous water flow for more than the specified time.", etc. are displayed. Note that the transmission content may be made to match the abnormal or normal notification content in the above-described abnormal notifications and normal notifications.

[0087] Also, the display format may be changed for normal notifications and abnormal notifications. For example, for normal notifications, the abnormal notifications can be colored red or the like, or the column can be highlighted for display, so that the normal notifications can be distinguished and made easier to visually recognize.

[0088] Furthermore, on the transmission history screen 60 as well, similar to the above-described water flow history screen 50, a history search bar for specifying the range of the history to be displayed may be provided. (Notification setting screen 70)

[0089] Finally, an example of the notification setting screen 70 is shown in FIG. 10. On the notification setting screen 70, a notification destination email address specification column 72 is provided. In the notification destination email address specification column 72, an email address is specified as the notification destination for abnormal notifications. Also, a notification destination name setting column 74 for distinguishing the notification destinations may be provided. For example, notification destination names such as "eldest son", "eldest daughter", "nursing care provider", etc. are input in text to the notification destination name setting column 74.

[0090] Furthermore, the notification setting screen 70 may be provided with a normal notification setting section 76 for selecting ON / OFF of normal notifications. In the example of FIG. 10, as the normal notification setting section 76, a "Report at normal times" column is provided, and by checking this column, normal notifications are also made. [Embodiment 2]

[0091] In the above example, an example in which the flow rate sensor 10 is wired-connected to the monitoring-side communication unit 14 has been described. However, the present disclosure is not limited to a configuration in which the connection between the flow rate sensor and the monitoring-side communication unit 14 is made by wire, and a wireless connection may be used. For example, the flow rate data may be sent from the flow rate sensor to the monitoring-side communication unit 14 via a medium such as radio waves, ultrasonic waves, or light. As such an example, the monitoring system 2000 according to Embodiment 2 is shown in FIG. 2. In this figure, members similar to those in the above-described Embodiment 1 and the like are denoted by the same reference numerals, and detailed description thereof will be omitted as appropriate.

[0092] In the monitoring system 2000 shown in FIG. 2, a communication module 11 is added to the flow rate sensor 10. The communication module 11 can appropriately use an existing data communication method, for example, a standardized communication method such as Bluetooth (registered trademark), ZIGBEE (registered trademark), IEEE802.x, LPWA (Low Power Wide Area), or a communication method conforming to a proprietary standard. [Embodiment 3]

[0093] In the above-described example, an example in which an arithmetic unit (server-side arithmetic unit 22 in the example of FIG. 1) is provided on the server device 20 side installed separately from the monitoring device 100 and processing such as calculation of water usage is performed has been described. However, the server device is not necessarily required, and an arithmetic unit may be provided on the monitoring device side, and the monitoring device may directly communicate with the monitoring-side terminal without going through the server device. Such an example is shown in FIG. 12 as the monitoring system 3000 according to Embodiment 3. In this figure, members similar to those in the above-described Embodiment 1 and the like are denoted by the same reference numerals, and detailed description thereof will be omitted as appropriate.

[0094] The monitoring system 3000 shown in FIG. 12 includes a monitoring measure 100' that comprises a flow sensor 10, a monitoring-side arithmetic unit 12', a monitoring-side communication unit 14', and a monitoring-side storage unit 16. The monitoring-side arithmetic unit 12' compares the actual water usage amount with a preset water usage amount based on the flow data, and generates an abnormality notification when a predetermined abnormality determination condition is exceeded. The monitoring-side storage unit 16 records the setting of the abnormality determination condition and the like, and the flow data detected by the flow sensor 10. The monitoring-side communication unit 14' directly sends the flow data regarding the flow rate of the tap water detected by the flow sensor 10 to the monitoring-side terminal 1 without going through the server device. This monitoring device has the advantage of being easily configured without the need for a server device.

[0095] As described above, the monitoring-side arithmetic unit 12', the monitoring-side communication unit 14', and the monitoring-side storage unit 16 each perform the same functions as the server-side arithmetic unit 22, the server-side communication unit 24, and the server-side storage unit 26 installed on the server device side in FIG. 1. In the present disclosure, a member that performs the function of the monitoring-side arithmetic unit 12' or the server-side arithmetic unit 22 is referred to as an arithmetic unit. Also, a member that performs the function of the monitoring-side communication unit 14' and the server-side communication unit 24 is referred to as a communication unit, and further, a member that performs the function of the monitoring-side storage unit 16 and the server-side storage unit 26 is referred to as a storage unit.

[0096] In the above examples, an example of monitoring based on the usage status of tap water by installing a single flow sensor on the secondary side of a water meter has been described. However, the present disclosure can also be applied to cases where, in addition to tap water, or instead of tap water, domestic water other than tap water, such as well water, spring water in mountainous areas, river water, etc., is used for drinking water or uses other than drinking water, such as toilet, laundry, bath water, etc. For these domestic waters, by adding a flow sensor to the supply pipe of domestic water other than the water pipe, it is similarly possible to monitor the usage status of domestic water and, for example, monitor whether domestic water is being used and keep watch. For example, when installing the flow sensor outside the water pipe, it is possible to determine whether the person being monitored is normal or abnormal based on the usage status such as the presence or absence of water volume in each of the plurality of flow sensors. In the present disclosure, the "usage status of tap water" is used in the sense of including such domestic water obtained from sources other than tap water. Similarly, in the present disclosure, tap water is used in the sense of including well water and the like in addition to tap water.

[0097] In addition, the site where the person being monitored is located does not refer only to the house where the person being monitored lives. For example, it is used in the sense of monitoring including the amount of tap water used in outdoor facilities such as toilets, bathhouses, laundries, and watering of the garden provided separately from the main house.

Industrial Applicability

[0098] The monitoring device, monitoring system, server device for the monitoring system, and monitoring method according to the present disclosure can be suitably used for a family living remotely to monitor a single-person household such as an elderly person or a person living alone. In addition, it is not limited to a single-person household. For example, it can also be used for the purpose of a family living with an elderly parent to monitor the parent's condition from a distant place when leaving home for travel, business trips, etc.

Explanation of Reference Numerals

[0099] 1000, 2000, 3000… Monitoring system 100… Monitoring device 1… Monitoring-side terminal 10… Flow sensor 11… Communication module 12…Monitoring-side arithmetic unit; 12’…Arithmetic unit 14…Monitoring-side communication unit; 14’…Communication unit 16…Memory unit 20…Server device 22…Server-side arithmetic unit 24…Server-side communication unit 26…Server-side memory unit 30A, 30B…Abnormality notification; 30C…Normal notification 40…Flow detection time zone setting screen 50…Flow history screen 52…Flow graph display column 54…Flow details display column 56…History search column 57…"Transmit" button 58…History search result screen 60…Transmission history screen 70…Notification setting screen 72…Notification destination email address specification column 74…Notification destination name setting column 76…Normal notification setting unit WM…Water meter MB…Water measuring box

Claims

1. A monitoring device for a caregiver to remotely monitor a person under care using a caregiver terminal based on the usage status of water in the premises where the person under care is located, comprising: a flow sensor installed on the secondary side of a water meter in a water pipe; a caregiver-side arithmetic unit electrically connected to the flow sensor and capable of generating an abnormality notification when it meets a predetermined abnormality determination condition based on flow rate data regarding the usage status of tap water detected by the flow sensor; a caregiver-side storage unit electrically connected to the caregiver-side arithmetic unit for storing the flow rate data; a caregiver-side communication unit electrically connected to the caregiver-side arithmetic unit for transmitting the abnormality notification to the caregiver terminal; wherein the predetermined abnormality determination condition is that the usage amount of tap water is zero within a preset time; the caregiver-side arithmetic unit is configured to generate a running history screen for displaying history information based on the flow rate data stored in the caregiver-side storage unit according to a request from the caregiver terminal and to be displayable on the caregiver terminal.

2. The monitoring device according to Claim 1, wherein when the caregiver-side arithmetic unit does not meet the abnormality determination condition, it is configured to transmit a normal notification indicating normality to the caregiver terminal via the caregiver-side communication unit at a preset time.

3. The monitoring device according to Claim 1, wherein the abnormality determination condition includes a case where the continuous usage time of tap water exceeds a certain time.

4. The monitoring device according to Claim 2, wherein the normal notification is an email.

5. The monitoring device according to any one of Claims 1 to 4, wherein the flow sensor is provided with a communication function capable of wirelessly transmitting the flow rate data to the caregiver-side communication unit.

6. The monitoring device according to any one of Claims 1 to 4, wherein the flow sensor is of a clamp-on type.

7. The monitoring device according to any one of Claims 1 to 4, wherein the flow sensor is battery-powered.

8. The monitoring device according to any one of Claims 1 to 4, wherein the flow sensor is waterproof.

9. The monitoring device according to any one of Claims 1 to 4, A monitoring device in which the flow sensor is provided adjacent to the water meter in a water measuring box where the water meter is installed.

10. The monitoring device according to any one of Claims 1 to 4, A monitoring device in which the flow sensor is 120 mm or less.

11. The monitoring device according to any one of Claims 1 to 4, A monitoring device in which the flow sensor is a flow switch.

12. The monitoring device according to any one of Claims 1 to 4, A monitoring device in which the person to be monitored is a single-person household or a household in need of care.

13. The monitoring device according to any one of Claims 1 to 4, A monitoring device in which the flow data includes the presence or absence of running tap water.

14. A monitoring system for remotely monitoring a person to be monitored by a monitor using a monitoring-side terminal based on the usage status of the water supply in the premises where the person to be monitored is located, A flow sensor installed on the secondary side of the water meter of the water pipe, A monitoring-side communication unit electrically connected to the flow sensor and sending out external flow data regarding the usage status of tap water detected by the flow sensor, A monitoring device comprising: A server-side communication unit that communicates with the monitoring-side communication unit, A server-side arithmetic unit that can generate an abnormality notification when the flow data received from the monitoring-side communication unit by the server-side communication unit meets a predetermined abnormality determination condition, A server-side storage unit electrically connected to the server-side arithmetic unit and storing the flow data, A server device comprising: A monitoring-side terminal that communicates with the server-side communication unit and can receive the abnormality notification generated by the server-side arithmetic unit, Comprising: The predetermined abnormality determination condition is that the water usage amount is zero within a preset time, A monitoring system configured such that the server-side arithmetic unit generates a running water history screen for displaying history information based on the flow data stored in the server-side storage unit according to a request from the monitoring-side terminal and can display it on the monitoring-side terminal.

15. A server device for a monitoring system for remotely monitoring a person to be monitored by a monitor using a monitoring-side terminal based on the usage status of the water supply in the premises where the person to be monitored is located, A server-side communication unit for receiving, from a monitoring-side communication unit of a monitoring device, flow rate data regarding the usage status of tap water detected by a flow rate sensor installed on the secondary side of a water meter of a water pipe within the site; A server-side arithmetic unit capable of generating an abnormality notification when the flow rate data received by the server-side communication unit from the monitoring-side communication unit meets a predetermined abnormality determination condition; A server-side storage unit electrically connected to the server-side arithmetic unit for storing the flow rate data; Comprising: The server-side arithmetic unit is configured to be able to transmit the abnormality notification generated by the server-side arithmetic unit from the monitoring-side communication unit to a monitoring-side terminal; The predetermined abnormality determination condition is that the usage amount of tap water is zero within a preset time; A server device configured such that the server-side arithmetic unit generates a running water history screen for displaying history information based on the flow rate data stored in the server-side storage unit according to a request from the monitoring-side terminal and is capable of displaying the running water history screen on the monitoring-side terminal.

16. A monitoring method in which a monitor who monitors a person under monitoring uses a monitoring-side terminal to remotely monitor the person under monitoring based on the usage status of the water supply in the site where the person under monitoring is located, A step of detecting flow rate data regarding the usage status of tap water with a flow rate sensor installed on the secondary side of a water meter of a water pipe; A step of generating an abnormality notification when an arithmetic unit electrically connected to the flow rate sensor detects that the usage amount of tap water included in the flow rate data is zero within a preset time based on the detected flow rate data; A step of transmitting, by a communication unit, the abnormality notification generated by the arithmetic unit to a monitoring-side terminal; A step of generating, by the arithmetic unit, a running water history screen for displaying history information based on the flow rate data stored in a storage unit according to a request from the monitoring-side terminal and causing the running water history screen to be displayed on the monitoring-side terminal; A monitoring method including:

17. A monitoring method in which a monitor who monitors a person under monitoring uses a monitoring-side terminal to remotely monitor the person under monitoring based on the usage status of the water supply in the site where the person under monitoring is located, A step of detecting flow rate data regarding the usage status of tap water with a flow rate sensor installed on the secondary side of a water meter of a water pipe; Based on the detected flow rate data, when a calculation unit electrically connected to the flow rate sensor detects that the person under surveillance has left the tap water running continuously for a certain period of time or more during an emergency, a step of generating an abnormality notification; A step of transmitting the abnormality notification generated by the calculation unit from a communication unit to a supporter who has been requested in advance; A step in which the supporter makes a call to the pre-registered phone number of the person under surveillance; A step of dispatching a person in charge to the site where the person under surveillance is located when there is no response to the call; A monitoring method including the above.

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