JP2000311154A - Web server type telemeter device and remote supervisory control system having the device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily extend the system by sending an HTML document, stored in a storage means, out to a remote supervisory terminal at a request for loading by a network address from the remote supervisory terminal. SOLUTION: A data gathering part 122 continuously measures digital values of switch states of external devices 201 to 203, the voltage of a specific part, etc., through an input/output part 141 and stores their measured values as gathered data 132 in a storage part 131. According to the gathered data 132 stored in the storage part 131, a processing program 113 generate an HTML document 134 and stores it in the storage part 131. Then the HTML document 134 is sent from the storage part 131 to a browser program 402 through a network 301 and a communication part 151 in response to operation done by a user of the remote supervisory terminal 401 and the gathered data are displayed in a browser screen.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telemeter device and a remote monitoring control system having the same, and more particularly to a telemeter device.
The present invention relates to a telemeter device having an EB (World Wide Web) server configuration and a remote monitoring control system having the same.

[0002]

2. Description of the Related Art Conventionally, in order to collect remote monitoring information such as the status of a monitored system, a communication procedure and a message format have been determined between a telemeter device and a remote monitoring terminal.

[0003] That is, the remote monitoring terminal collects measurement data by exchanging messages with the telemeter device in accordance with a prescribed format according to a communication procedure decided in advance. Communication procedures and messages must be negotiated for each system, and when applying to other systems, new rules have to be negotiated each time.

[0004] A retrospective study of the technology related to the field of the present invention from a past patent application shows that Japanese Patent Application Laid-Open No. 10-207527 requires a wide range of facility monitoring and control methods to display and control the operation status of facilities. A method is disclosed in which control information from a requesting terminal device and screen information from a terminal server that collects information on a target facility are mutually communicated in a hypertext format for the purpose of disclosing the information to the source.

[0005] Japanese Patent Application Laid-Open No. 10-254732 discloses a system similar to the above, except that the above-mentioned target facility is changed to a controller.

[0006]

However, in the prior art, it is necessary to determine a communication procedure and a message format between the telemeter device and the remote monitoring terminal.

That is, as described above, the remote monitoring terminal collects measurement data by exchanging messages with the telemeter device in accordance with a prescribed format according to a communication procedure determined in advance. , Communication procedures and messages need to be negotiated for each system, and such rules have not been standardized, so new rules need to be negotiated each time they are extended and applied to other systems. was there.

Accordingly, the present invention provides a remote monitoring and control system for performing communication between a telemeter device and a remote monitoring terminal, which does not require a new protocol to be set for each system when the system is expanded. An object of the present invention is to make it possible to easily expand a system by adopting the system.

Also, a remote monitoring control system that enables a remote monitoring terminal to collect standard observation data from an external device connected to the telemeter device and control the external device via the telemeter device. The purpose is to provide.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems in the conventional remote monitoring and control system, and has as its object to provide a remote monitoring and control system that can easily be expanded. And

[0011]

According to the present invention, there is provided a WEB server type telemeter apparatus which collects measurement data from an external device, and an HTML (Hyper Text) having the measurement data based on the collected measurement data. Mark
up Language) editing means for generating a document, and the HTML
A storage unit for storing a document, and a unit for sending an HTML document stored in the storage unit to the remote monitoring terminal when a loading request by a network address is received from a remote monitoring terminal.

Further, in the WEB server type telemeter device according to the present invention, in the above WEB server type telemeter device, the editing means refers to the collected data attribute table and stores the collected data attribute table in the measurement data. When there is an item in the set range, the item is specially displayed or an HTML document for generating a warning sound is created.

Further, in the WEB server type telemeter device according to the present invention, in the WEB server type telemeter device described above, the telemeter device includes control means for controlling the external device, start means for starting the control means, An HTML document stored in a storage unit, wherein the activation unit is described in an action attribute of a form tag, and an HTML document having a submit button is provided.

Further, according to the WEB server type telemeter device according to the present invention, in the above WEB server type telemeter device, an H having the measurement data based on the measurement data is provided.
CGI (Common Gateway Interface) that generates TML documents
e) The CGI program is described in a program and an action attribute of a form tag, and includes an HTML document having a submit button. Further, the WEB server type telemeter device according to the present invention is provided with the above WEB server.
In the server-type telemeter device, the CGI program activates measurement data collection means.

[0015] A remote monitoring control system according to the present invention comprises the above-described WEB server type telemeter device, means for receiving the HTML document transmitted from the WEB server type telemeter device, and a browser for displaying the HTML document. Means for executing a program and the browser program; and means for displaying the HTML document.

[0016]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the overall configuration of a remote monitoring control system according to an embodiment of the present invention.

Referring to FIG. 1, the remote monitoring control system of the present embodiment includes a telemeter device 101, external devices 201, 202, and 203 connected to the telemeter device, a network 301, and a remote monitoring terminal 401.

The telemeter device 101 includes a processing unit 111,
Firmware unit 121, storage unit 131, input / output unit 14
1. It has a communication unit 151 compliant with TCP / IP. The processing unit 111 includes a CGI (Common Gateway Interface) program 112 and a processing program 113. The firmware unit 121 includes a data collection unit 122 and a data control unit 123. The storage unit 131 stores the collected data 13
2. Collected data attribute table 133, HTML (Hyper T
ext Markup Language) document is stored.

The external devices 201, 202, and 203 are devices for performing various measurements or various home appliances, and are connected to the input / output unit 141 of the telemeter device.

The network 301 is connected to the telemeter device 10
1 and a communication path between the remote monitoring terminal 401,
The protocol is TCP / IP (Transmission Control
Protocol / Internet Protocol).
The network 301 is an Internet network and / or a public communication network and / or a local private network.

The remote terminal 401 stores the HTML document 1
The communication unit 403 has TCP / IP-compliant communication means 403 for receiving the HTML document 134 and transmitting the input on the HTML document 134 to the telemeter device 101, and a browser program 402 for browsing the received HTML document 134. The screen to be displayed is displayed on the monitor of the input / output device 411, and the operation of a pointer such as a mouse on the screen is processed by the browser program 402.

Next, the operation of the remote monitoring control system of the present embodiment will be described.

[First Embodiment] First, a basic operation will be described as a first embodiment.

The data collection unit 122 continuously operates the input / output unit 1
Via the switch 41, the switch status of the external devices 201, 202, and 203, and digital or analog values such as voltages of predetermined portions are measured, and the measured values are stored in the storage unit 131 as collected data 132. Therefore, the storage unit 131 always stores the latest collected data. The processing program 113 stores the collected data 132 written in the storage unit.
HTML document 1 with information on the value of the collected data based on
34 is created and stored in the storage unit 131. Therefore, HT
The latest collected data is always written in the ML document 134. As a display format of the collected data on the HTML document 134, for example, a table format having a fixed portion such as an item name of the collected data and a variable portion such as the collected data can be adopted.

In this way, when the remote monitoring terminal 401 accesses the remote monitoring terminal 401 via the network 301, the latest collected data can always be transmitted to the remote monitoring terminal 401. When a request to display the HTML document 134 by a URL is specified on the browser program 402 by a user operation, the HTML document 134 is stored in the storage unit 1 via the network 301 and the communication unit 151.
31 to the browser program 402, and the collected data is displayed on the browser screen.

A CG that generates an HTML document 134 having the measurement data 132 based on the measurement data 132
I program 112 and an HT having the submit button described with the CGI described in the action attribute of a form tag
An ML document 134 is prepared, and the HTML document 1
The CGI program 112 may be activated when the submit button is pressed while the remote monitoring terminal 401 is displayed by the browser program 402 on the remote monitoring terminal 401 side. Further, the CGI program 112 may activate the data collection unit 122. When the submit button of the HTML document 134 is pressed, the CGI program 112 is activated, the CGI program 112 activates the data control unit 123, and the data control unit 123 controls the external devices 201 to 203. Begins. In this case, C
External devices 201 to 2 controlled by GI program 112
The HTML document 134 corresponding to the state 03 is sent to the browsing screen realized by the browser program 402.

[Second Embodiment] The operation of the second embodiment is basically the same as that of the first embodiment, so that the description thereof will be omitted, and only the parts unique to the second embodiment will be described below.

The processing program 113 for generating the HTML document 134 performs
In addition to the collected data 132, the collected data attribute table 13
Please refer to FIG. The collected data attribute table stores, for each item of collected data, whether or not the item is specially displayed under a predetermined condition, and for an item to be specially displayed, a predetermined condition when the item is specially displayed is stored. Have been. The predetermined condition (special display condition) is “0” or “1” when the value of the item is digital, and is a value within a predetermined range when the value of the item is analog.

The processing program 113 compares the value of the item in the collected data 132 with the special display condition of the item in the collected data attribute table 133 for the item specially displayed under a predetermined condition. If the value of the item satisfies the special display condition, the attribute of the special display is set to the item value or the value tag of the item in the HTML document 134 to be created. As the special display, for example, there is a flicker display. Further, a warning sound may be output instead of the special display.

[Third Embodiment] The operation of the third embodiment is basically the same as that of the first embodiment, so that the description thereof will be omitted, and only the parts unique to the third embodiment will be described below.

CG for activating data control unit 123
I program 112 is created, and the CG is added to the action attribute of the form tag of a predetermined HTML document 134.
The I program 112 is described. When the user of the remote monitoring terminal 401 presses the submit button of the HTML document 134 while the HTML document 134 is being displayed on the browser, the CGI program 112 is displayed.
Is started, the data control unit 123 is started by the CGI program 112, and the control of the external devices 201 to 203 by the data control unit 123 is started.

[0033] HTML document 1
34, or information (such as selection information set on radio buttons) input to the HTML document 134
The operation of the data control unit 123 is switched by, for example, reading by the I program 112. That is, for example,
The external device to be controlled is switched, and the content of the control is switched.

Further, the CGI program 112 sends the HTML document 134 corresponding to the state of the external devices 201 to 203 after control to the browsing screen realized by the browser program 402.

According to the third embodiment, the remote monitoring terminal 4
By operating 01, it is possible to control the external devices 201 to 203 located at a remote location from the remote monitoring terminal.

[0036]

According to the present invention described above, the software of the remote monitoring terminal includes the ARPA (Advanced Resear
ch Project Agency) By adopting a protocol for the Internet network (Internet Protocol) based on the network, it is possible to simplify the software configuration of the remote monitoring terminal. In other words, the remote terminal may be provided with only an HTML browser in addition to the operating system, and does not require special-standard software for analyzing packets and messages. You can browse monitoring data.

Also, the monitoring data of the telemeter device is stored in We
By adopting the method of distributing in the b format, it is possible to arbitrarily browse monitoring data at a remote monitoring terminal existing on the network, regardless of the location or the number.

Further, as a network, ARPA (Adv
By using an Internet network based on an advanced research project agency (network), communication costs can be reduced even when the telemeter device is located at a remote place.

Further, it is possible to control an external device at a remote place from an HTML browser.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an overall configuration of a remote monitoring control system according to a first embodiment of the present invention.

[Explanation of symbols]

Reference Signs List 101 Telemeter device 111 Processing unit 112 CGI program 113 Processing program 121 Firmware unit 122 Data collection unit 123 Data control unit 131 Storage unit 132 Collection data 133 Collection data attribute table 134 HTML document 141 Input / output unit 151 Communication unit 201, 202, 203 External Device 301 Network 401 Remote monitoring terminal 402 Browser program 403 Communication unit 411 Input / output device (monitor, pointing device)

Claims (6)

[Claims] A measurement data collecting means for collecting measurement data from an external device, and an HTML (Hyper Text Markup Language) having the measurement data based on the collected measurement data.
age) editing means for generating a document, storage means for storing the HTML document, and sending the HTML document stored in the storage means to the remote monitoring terminal when a remote monitoring terminal requests loading by a network address. And WEB server type telemeter device. 2. The WEB server type telemeter device according to claim 1, wherein the editing unit refers to a collected data attribute table and is within a range set in the collected data attribute table in the measurement data. When there is an item, H for specially displaying the item or issuing a warning sound
A WEB server type telemeter device for creating a TML document. 3. The WEB server type telemeter device according to claim 1, wherein the telemeter device includes a control unit for controlling the external device, a start unit for starting the control unit, and storage in the storage unit. A web server type telemeter device, comprising: a generated HTML document, wherein the activation means is described in an action attribute of a form tag and an HTML document having a submit button is provided. 4. The WEB server type telemeter device according to claim 1, wherein a CGI (Common Gateway Interface) program for generating an HTML document having the measurement data based on the measurement data, A WEB server type telemeter device characterized in that the CGI program is described in an action attribute of a form tag and an HTML document having a submit button is provided. 5. The WEB server type telemeter device according to claim 4, wherein said CGI program activates measurement data collection means. 6. A WEB server type telemeter device according to claim 1, a means for receiving the HTML document transmitted from the WEB server type telemeter device, and displaying the HTML document. And a means for executing the browser program, and a means for displaying the HTML document.