JP2017062725A - Remote monitoring system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a remote monitoring system that improves monitoring of monitor information through a Web page.SOLUTION: In a remote monitoring system in which a server 1 comprises monitor means that acquires information on a monitor object device 3, and displays the acquired information on a Web page opened by a terminal device 2, the Web page includes: a number input unit for inputting an authentication number; a start input unit for requesting a start operation of the monitor means; and a suspension input unit that requests an operation suspension of the monitor means. When the authentication number is input and a start request is input, the terminal device 2 is configured to transmit the authentication number and the start request to the server 1. When receiving the authentication number and the start request, the server 1 is configured to register the authentication number to start an operation of the monitor means. In the terminal device 2, during operating the monitor means, when the Web page is closed without an input of the suspension request, the Web page is opened again, and the registered authentication number is input, thereby the monitor means in operation is suspended.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a remote monitoring system.

  As a conventional remote monitoring system, for example, one that generates a Web page for notifying monitoring information has been known (for example, see Patent Document 1). Further, it has been known that a controller including a parent device and a child device is provided, information on all monitored devices is acquired via these controllers, and the acquired information is disclosed on a Web page (for example, , See Patent Document 2).

Japanese Patent No. 4070557 Japanese Patent No. 4715499

  However, the conventional remote monitoring system has room for improvement in monitoring monitoring information through a Web page.

  An object of the present invention is to provide a remote monitoring system that improves monitoring of monitoring information through a Web page.

  In order to solve the above-described problem, a remote monitoring system according to an aspect of the present invention includes a server and a terminal device, and the server acquires information on a monitoring target device, and the terminal device opens the acquired information. A remote monitoring system comprising a monitor means for displaying on a Web page, wherein the Web page includes a number input unit for inputting an authentication number for the terminal device to receive authentication, and the terminal device includes the terminal device A start input unit for inputting a start request for requesting an operation start of the monitoring means; and a stop input unit for inputting a stop request for the terminal device to request an operation stop of the monitoring means. When the authentication number is input and the start request is input, the input authentication number and start request are transmitted to the server, and the server receives the authentication number and the start request. Then, registering the authentication number and starting the operation of the monitoring means, and when the Web page is closed without inputting the stop request during the operation of the monitoring means in the terminal device, When the web page is opened again and the registered authentication number is input, the active monitoring means is stopped. Here, the “Web page” may be a plurality of pages. In such a case, the number input unit, the start input unit, and the stop input unit may be included in different pages.

  According to this configuration, even when the user accidentally closes the Web page without performing the stop operation of the monitor unit, the user can stop the monitor unit. As a result, it is possible to provide a remote monitoring system that improves monitoring of monitoring information through a Web page.

  When the authentication number is input and the stop request is input, the terminal device transmits the input authentication number and the stop request to the server, and when the server receives the authentication number and the stop request, When the authentication number matches the registered authentication number, the operation of the monitoring unit is stopped, and the server uses the session ID to publish the Web page except for the operation stop of the monitoring unit. Session management.

  According to this configuration, since the server manages the publishing of the web page by using the session ID except for the start and stop of the operation of the monitoring unit, basically the terminal that starts to access the web page A series of communication control between the apparatus and the server is managed as one aggregate. Accordingly, a new session ID is issued each time the terminal device accesses the Web page. However, since the operation start and operation stop of the monitoring means are performed using the authentication number instead of the session ID, the operation of the monitoring means is performed. If the user accidentally closes the Web page, the user can stop the monitoring means in operation in the previous session by inputting the registered authentication number and stop request in the terminal device. . Therefore, even if the user accidentally closes the Web page without performing the stop operation of the monitor unit, the function that the user can stop the monitor unit can be suitably realized.

  When the remote monitoring system includes a plurality of the terminal devices, a certain terminal device opens the web page, and the monitoring unit is in operation, when another terminal device accesses the web page, The server may display the information acquired by the monitoring unit on the Web page opened by the other terminal device.

  According to this configuration, a plurality of terminal devices can simultaneously monitor the same monitoring target device through the Web page.

  When the remote monitoring system includes a plurality of the terminal devices, a certain terminal device opens the web page, and the monitoring unit is in operation, when another terminal device accesses the web page, The server may display a time when the other terminal device can start the operation of the monitoring means.

  According to this configuration, it is possible to know the time at which a terminal device that does not have an operation right can use the monitoring means.

  According to the remote monitoring system, it is possible to provide a remote monitoring system that improves monitoring of monitoring information through a Web page.

FIG. 1 is a block diagram showing a configuration of a remote monitoring system according to the first embodiment of the present invention. FIG. 2 is a flowchart showing the operation of the remote monitoring system of FIG. FIG. 3 is a schematic diagram illustrating an example of a Web page for monitoring a monitoring target device. FIG. 4 is a schematic diagram illustrating an example of a Web page for monitoring a monitoring target device displayed on a terminal that does not have an operation right in the remote monitoring system according to the second embodiment of the present invention. FIG. 5 is a flowchart showing the operation of the assumed remote monitoring system. FIG. 6 is a flowchart showing the operation when the Web page is closed without stopping the monitoring means in the assumed remote monitoring system.

(Focus point of the present invention)
The HTTP protocol is used for the WWW service (Web page) used for monitoring monitoring information by the conventional remote monitoring system. In the HTTP protocol, every time there is a request from the client to the Web server, the client and the server A connection is established between them, a response to the request is made, and the connection is disconnected. Therefore, when no countermeasure is taken, it is impossible to determine whether or not a plurality of requests for the Web server are transmitted from the same client. When it is necessary to transfer a page while retaining login information until the user logs out after logging in to the Web server, the information is retained between the client and the server, and the access control is performed as one aggregate. As a management system is required. As a method for realizing this mechanism, a method is known in which a session ID is issued when a client logs in to a Web server, and thereafter, session management between the client and the Web server is performed based on the session ID.

  Here, a remote monitoring system that performs monitoring by a remotely installed server or the like is assumed for a connected hot water system that controls the number of water heaters. This remote monitoring system has a monitoring function (monitoring means or monitoring operation mode) for disclosing information such as the operating state of each device in the connected hot water supply system on a Web page.

  As shown in FIG. 5, when a web page is accessed from the web browser of the user's terminal, a session ID (IDA in this case) is assigned from the server, the terminal is identified based on the session ID, and the right to operate the monitor function ( The authority to start and stop the operation of the monitor function is granted. Specifically, when the terminal transmits an operation start request for the monitor function together with the session IDA, the server registers the session IDA, operates the monitor function, and transmits this (start response (permission)) to the terminal. Thereafter, a request (request) is transmitted from the terminal together with the session IDA to the server, and a response (response) is transmitted from the server to the terminal.

  Then, when the terminal transmits a request for stopping the monitoring function together with the session IDA, the server stops the monitoring function and transmits that fact (stop response (permission)) to the terminal. At this time, the registration of session IDA is deleted. As a result, the session ends and the user logs out of the server.

  However, as shown in FIG. 6, it is conceivable that a terminal having this operation right erroneously closes a Web page without sending a monitor function stop request. In this case, when the user operates the terminal to access the Web page so as to stop the operation of the monitor function, the server allocates a session IDB and transmits the Web page to the terminal. As a result, when the user transmits an operation stop request for the monitor function, the session IDB is transmitted together. Since the previous session is terminated when the monitoring function is deactivated, the previous session continues (login continues) at this point. Therefore, the server transmits a response (stop response (rejection)) rejecting the operation stop request to the terminal, assuming that the session IDs do not match. Therefore, in this assumption example, it can be seen that if the terminal having the operation right erroneously closes the Web page without sending a monitor function stop request, the monitor function cannot be stopped. The present invention has been made with this problem in mind.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the following, the same or corresponding elements are denoted by the same reference symbols throughout all the drawings, and redundant description thereof is omitted.

(First embodiment)
[Constitution]
FIG. 1 is a block diagram showing a configuration of a remote monitoring system according to the first embodiment of the present invention.
As shown in FIG. 1, the remote monitoring system according to the first embodiment may be collectively referred to as a server 1 and a first terminal to an nth terminal (terminal device: hereinafter, one or more terminals 2. And an integer above.) The server 1 and the terminal 2 are connected to each other via a network 4 capable of data communication. Connected to the network 4 are first to m-th devices (monitored devices: hereinafter, sometimes collectively referred to as one or more devices 3, where m is an integer of 2 or more). One or more devices 3 may be connected to the server 1 through a data communication line separate from the network 4.

  Here, the server 1 is a so-called Web server. For example, the server 1 includes a computer having a calculation unit and a storage unit, and functions as a Web server when a program for performing a WWW service stored in the storage unit is executed by the calculation unit. The server 1 publishes a Web site (hereinafter referred to as a remote monitoring Web site) including a Web page (hereinafter referred to as a remote monitoring Web page) for remotely monitoring one or more devices 3. The server 1 also includes a monitor unit 1a. The monitor unit 1a is a unit realized by the computer operating according to a remote monitoring program stored in the storage unit and executed by the arithmetic unit. The monitoring unit 1a collects information on one or more devices 3 and displays the collected information on the remote monitoring Web page 31 (see FIG. 3). The monitor unit 1a stores the collected information.

  The terminal 2 is a so-called Web client here. The terminal 2 is configured by, for example, a computer having a calculation unit and a storage unit, and functions as a Web client when a Web browser stored in the storage unit is executed by the calculation unit.

  The one or more devices 3 are not particularly limited. Each of the one or more devices 3 constitutes a system (hereinafter simply referred to as a system) that is a collection of devices that function independently (hereinafter referred to as independent devices) and achieves a specific purpose (exemplifies a specific function). Or a combination of independent devices and systems. There may be a plurality of systems. As the device 3, for example, a device constituting a hot water supply system is exemplified. Examples of such devices include a water heater, various sensors, a controller, and the like. Information collected from one or more devices 3 is not particularly limited. Examples of such information include a physical quantity (temperature, etc.) indicating the state of the device 3, a parameter indicating the operation status, failure information, and the like.

  The network 4 is composed of, for example, the Internet, a LAN, a commercial communication line, and the like.

[Operation]
The operation of the remote monitoring system configured as described above will be described. FIG. 2 is a flowchart showing the operation of the remote monitoring system of FIG. Below, the case where the 1st terminal as the terminal 2 accesses the server 1 is illustrated. In FIG. 2, the access to the remote monitoring Web page 31 (see FIG. 3) of the server 1 by the terminal 2 is shown as “Web page access”, and the transmission of the remote monitoring Web page 31 to the terminal 2 by the server 1 is shown. Shown as “Web page”.

  In the remote monitoring system of FIG. 1, the server 1 manages the release of the remote monitoring Web page 31 using the session ID, except for the stop of the operation of the monitoring unit 1a. Further, when the user operates the terminal 2 and logs in to the server 1, the user ID is authenticated. However, in this embodiment, since the user ID is commonly used for the plurality of terminals 2, the server 1 cannot identify the terminal 2 and its operator by the user ID. Therefore, in order for the server 1 to stop the operation of the monitor unit 1a, an authentication number (hereinafter simply referred to as an authentication number) input by the operator at the terminal 2 is used.

  Referring to FIG. 2, first, when the terminal 2 accesses the remote monitoring Web page 31 of the server 1, the user ID is authenticated between the terminal 2 and the server 1, and if this authentication is successful, the terminal 2 (exactly The user who operates the terminal 2 logs into the server 1. This login starts a session. The server 1 issues a session IDA and transmits it to the terminal 2 together with the remote monitoring Web page 3 1. In the following, a session ID is attached to a request (request) from the terminal 2 and a response (response) from the server 1, and session management is performed thereby. Omitted.

  The terminal 2 displays the received remote monitoring Web page 31 on its display unit (not shown) (hereinafter simply abbreviated as “display”). The remote monitoring web page 31 includes a number input unit for inputting an authentication number for the terminal 2 to receive authentication, and a start input unit for inputting a start request for the terminal 2 to request the start of operation of the monitor unit 1a. The terminal 2 includes a stop input unit for inputting a stop request for requesting to stop the operation of the monitor unit 1a.

  FIG. 3 shows a specific example of the remote monitoring Web page. In FIG. 3, reference numeral 31 indicates a remote monitoring Web page. The remote monitoring Web page 31 includes a “customer ID input unit” 32, a “decision input unit” 33, a “device selection unit” 34, a “monitor item selection unit” 35, and an “authentication number input unit” 36. , “Start input part” 37, “acquisition result display part” 38, and “stop input part” 39. The “decision input unit” 33 has a function corresponding to an enter key.

  The entity that publishes the remote monitoring Web site including the remote monitoring Web page 31 on the server 1 is the manufacturer of the device 3 to be monitored here. The purchaser of the device 3 is a “customer”. Then, the maintenance company uses the terminal 2 to monitor the device 3 for maintenance. The maintenance company is, for example, a sales agent that sells the device 3. The device 3 is, for example, a device group that constitutes a hot water supply system. Therefore, the “customer ID” is an ID for specifying a system or a group of independent devices delivered (sold) to the customer.

  Here, the description regarding the above-mentioned user ID is supplemented. A user ID is assigned to each maintenance company. In one maintenance contractor, a plurality of persons in charge (users) may operate each of the plurality of terminals 2 and perform maintenance while monitoring one customer's device 3. An ID is used in common for a plurality of terminals 2.

  Referring to FIGS. 2 and 3, “customer ID input unit” 32 is a page part (part of a Web page) for inputting “customer ID”. The user first inputs “customer ID” and clicks “decision input unit” 33.

  Then, a system or a group of independent devices to be monitored is specified and displayed on the “device selection unit” 34. Each device is displayed with a predetermined symbol (string of letters and numbers). The “device selection unit” 34 is a page portion for selecting a device to be monitored from a plurality of displayed devices. The user clicks to select a device to be monitored. In FIG. 3, the device “SC1”, the device “WH01”, and the device “WH02” are selected. Since all devices that can be delivered to the customer are displayed in the “device selection unit” 34, devices that are not delivered to the customer identified by the “customer ID” are selected with a strikethrough. I can't do it.

  The “monitor item selection unit” 35 is a page part for selecting items (information) to be monitored in common for the selected device. Each item is displayed with a predetermined symbol (numerical string). In addition, you may enable it to select a different item for every selected apparatus. The user clicks on an item to be monitored and selects it. In FIG. 3, the item “30” and the item “31” are selected.

  The “authentication number input portion” 36 is a page portion for inputting an “authentication number”. The “authentication number” is a number for identifying (authenticating) a person who has the operation right (in this case, the right to operate and stop operation) of the monitoring means 1a. Here, it is a four-digit number, which can be determined by the user as appropriate. However, if it is forgotten, the monitor means 1a cannot be operated. Here, an authentication number “0000” is set by default. The user inputs an appropriate authentication number A into the “authentication number input unit” 36.

  The “start input unit” 37 is a page part for inputting an operation start request (hereinafter simply referred to as an operation start request) of the monitoring unit 1a. The “acquisition result display portion” 38 is a page portion that displays data of the selected monitoring item acquired from the monitoring target device selected by the monitoring unit 1a. The “stop input unit” 39 is a page portion for inputting an operation stop request (hereinafter simply referred to as an operation stop request) of the monitoring unit 1a.

  Here, the user clicks the “start input unit” 37.

  Then, the terminal 2 transmits “operation start request” and “authentication number A” to the server 1.

  Upon receiving the “operation start request” and the “authentication number A”, the server 1 registers “authentication number A” (stores it in the storage unit). Then, the operation of the monitoring unit 1a is started, and the start of the operation of the monitoring unit 1a is permitted (start response (permission)) is transmitted to the terminal 2. The monitoring unit 1a collects and stores data of the selected monitoring item from the selected monitoring target device. The monitoring unit 1a collects and stores the data of all the monitoring items from all the monitoring target devices, extracts the data of the selected monitoring items of the selected monitoring target device from the data, It may be configured to transmit it to the terminal 2.

  When the terminal 2 receives the start response (permission), the terminal 2 transmits a request for data (data request) collected by the monitoring unit 1a to the server 1. Further, when the terminal 2 receives the start response (permission), the terminal 2 displays on the remote monitoring Web page 31 that the operation start of the monitor unit 1a is permitted. Here, the “start input part” 37 is colored and displayed. On the other hand, when the server 1 receives this request, it transmits the data (data response) collected by the monitoring means 1a at that time to the terminal 2. When the terminal 2 receives this data response, the data of the selected monitoring item of the selected monitoring target device, which is this data response, is displayed on the “acquisition result display” of the remote monitoring Web page 31 as shown in FIG. Part "38.

  Then, the terminal 2 transmits a data request to the server 1 at a predetermined time interval (for example, every 10 seconds), and the server 1 sequentially transmits a data response corresponding to the received data request to the terminal 2. The terminal 2 sequentially displays the received data response on the “acquisition result display unit” 38 of the remote monitoring Web page 31. As a result, the data displayed in the “acquisition result display section” 38 of the remote monitoring Web page 31 is sequentially updated. Therefore, the user who operates the terminal 2 can remotely monitor the selected monitoring item of the selected monitoring target device.

  Eventually, the scheduled process is completed, and the user tries to end the remote monitoring. However, the user may accidentally close the remote monitoring Web page 31. In this case, the above-described session continues and the monitoring means 1a remains activated. Therefore, the user accesses the remote monitoring Web page 31 in order to stop the operation of the monitoring unit 1a. Then, the server 1 issues a session IDB and transmits it to the terminal 2 together with the remote monitoring Web page 31.

  The terminal 2 displays the received remote monitoring Web page 31. Then, the user inputs the authentication number A registered in the “authentication number input unit” 36 and clicks the “stop input unit” 39.

Then, the terminal 2 transmits “operation stop request” and “authentication number A” to the server 1.

  When the server 1 receives the “operation stop request” and the “authentication number A”, the server 1 compares the “authentication number A” with the registered authentication number, and the authentication number A (here, the authentication number A) is registered. If it agrees, the operation of the monitoring means 1a is stopped, and the fact that the operation of the monitoring means 1a is permitted (stop response (permission)) is transmitted to the terminal 2. Then, registration of authentication number A is deleted. On the other hand, if the authentication number does not match the registered authentication number, the server 1 transmits a message to that effect to the terminal 2 and does not stop the operation of the monitoring means 1a. By the way, the session IDB is attached to the “operation stop request”, but the server 1 does not refer to the session IDB for the “operation stop request”.

  When the terminal 2 receives the stop response (permission), the terminal 2 displays on the remote monitoring Web page 31 that the operation of the monitor unit 1a has been stopped. Here, the “stop input part” 39 is colored and displayed. On the other hand, the coloring of the “start input unit” 37 disappears.

  If the user does not close the remote monitoring Web page 31 by mistake, the user inputs the registered authentication number A in the “authentication number input unit” 36 of the displayed remote monitoring Web page 31. Click “Stop input part” 39. Then, as described above, a series of processes including stopping the operation of the monitor unit 1a is performed.

  If the terminal 2 opens the remote monitoring Web page 31 and does not take any action, the server 1 is timed out and the terminal 2 (user) logs out of the server 1 and the registered authentication number ( Here, the authentication number A) and the session ID (here, session IDA) are deleted. The timeout process is performed, for example, when 30 minutes have elapsed since the last action.

  As described above, according to the remote monitoring system of the present embodiment, even if the user accidentally closes the remote monitoring Web page 31 without performing the stop operation of the monitoring unit 1a, the user can monitor The means 1a can be stopped. As a result, it is possible to provide a remote monitoring system that improves monitoring of monitoring information through the remote monitoring Web page 31.

(Second Embodiment)
The second embodiment of the present invention is basically the same as the first embodiment, but is partially different. Only this difference will be described below.

  FIG. 4 is a schematic diagram illustrating an example of a Web page for monitoring a monitoring target device displayed on a terminal that does not have an operation right in the remote monitoring system according to the second embodiment of the present invention.

  Referring to FIG. 4, reference numeral 41 indicates a remote monitoring Web page displayed on a terminal that does not have an operation right. Here, the “operation right” is the right to operate the monitor unit 1a described in the first embodiment. The remote monitoring Web page 41 includes an “item selection unit” 42 and an “acquisition result display unit” 43. The “item selection portion” 42 is a page portion that displays the scheduled operation time. The “acquisition result display portion” 43 is a page portion that displays the monitoring item selected by a certain terminal 2 and its corresponding received data (value).

  In the present embodiment, when a certain terminal (for example, the first terminal) 2 opens the remote monitoring Web page 31 and the monitoring means 1a is in operation, the other terminal (for example, the second terminal) 2 has the Web page 31. 4, the server 1 displays the information acquired by the monitoring unit 1 a on the remote monitoring Web page 41 opened by the other terminal 2 as shown in FIG. 4.

  Thereby, a plurality of terminals 2 can simultaneously monitor the same device to be monitored through the remote monitoring Web pages 31 and 41.

  In the present embodiment, when a certain terminal 2 opens the remote monitoring Web page 31 and the monitoring unit 1a is operating, when another terminal 2 accesses the remote monitoring Web page 31, the server 1 As shown in FIG. 4, the “item selection unit” 42 of the remote monitoring Web page 41 of the other terminal 2 displays the scheduled time at which the other terminal 2 can start the operation of the monitoring means 1a. . For example, the scheduled time is calculated by adding a time-out process (for example, 30 minutes) to the time when a certain terminal 2 starts the operation of the monitor unit 1a. This is the estimated time when no action was taken.

  According to this configuration, it is possible to know the time when the terminal 2 having no operation right can use the monitor unit 1a.

  In the above embodiment, the “authentication number input unit”, “start input unit”, and “stop input unit” are included in the same page, but may be included in different pages.

  From the foregoing description, many modifications and other embodiments of the present invention are obvious to one skilled in the art. Accordingly, the foregoing description should be construed as illustrative only and is provided for the purpose of teaching those skilled in the art the best mode of carrying out the invention. The details of the structure and / or function may be substantially changed without departing from the spirit of the invention.

  The remote monitoring system of the present invention is useful as a remote monitoring system that improves monitoring of monitoring information through a Web page.

1 server 2 terminal 3 device 4 network 31 web page 32 customer ID input unit 33 decision input unit 34 device selection unit 35 monitoring item selection unit 36 authentication number input unit 37 start input unit 38 acquisition result display unit 39 stop input unit 41 web page 42 Item selection part 43 Acquisition result display part

Claims (4)

A remote monitoring system including a server and a terminal device, wherein the server acquires monitoring target device information and displays the acquired information on a web page opened by the terminal device,
The web page is
A number input unit for inputting an authentication number for the terminal device to receive authentication;
A start input unit for inputting a start request for the terminal device to request an operation start of the monitoring means;
A stop input unit for inputting a stop request for the terminal device to request an operation stop of the monitoring means,
When the authentication number is input and the start request is input, the terminal device transmits the input authentication number and the start request to the server, and when the server receives the authentication number and the start request, Registering the authentication number and starting the monitoring means;
In the terminal device, when the Web page is closed without the stop request being input while the monitoring means is operating, the Web page is opened again and the registered authentication number is input. By doing so, the operating monitoring means is stopped. When the authentication number is input and the stop request is input, the terminal device transmits the input authentication number and the stop request to the server, and when the server receives the authentication number and the stop request, If the authentication number matches the registered authentication number, stop the operation of the monitoring means; and
The remote monitoring system according to claim 1, wherein the server manages the release of the Web page using a session ID, except for the stop of the operation of the monitoring unit. A plurality of the terminal devices;
When a certain terminal device opens the web page and the monitoring means is operating, when another terminal device accesses the web page, the server opens the web that the other terminal device opens. The remote monitoring system according to claim 1 or 2, wherein the information acquired by the monitoring means is displayed on a page. A plurality of the terminal devices;
When a certain terminal device opens the web page and the monitoring means is in operation, when another terminal device accesses the web page, the server sends the monitoring means to the other terminal device. The remote monitoring system according to any one of claims 1 to 3, wherein a time when the operation can be started is displayed.

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