Remote Monitoring Module based on Embedded Webpage Control

Published Time: 2010-03-29 Author: Shanghai ZLAN Views: 6250

After ZLSN2000, Shanghai ZLAN launched the module special for embed webpage control-ZLSN2030 depending on its own embedded Web server technology-ZLWeb. The IoT monitoring solution based on Web (also as the B/S architeture) is superior than the one based on Client (C/S structure), this is because the monitoring user no need to install special software, just use the web can be ok. One example of ZLSN2030 controlling Web is shown as figure 1:

ZLSN2030 Web monitoring scheme is a Web server embedded in internal ZLSN2030 module, user input ZLSN2030 IP address in the browser, you can open a Web page, click on the button in your Web pages you can realize the control the user need. The scheme has many advantages over the solution based on central Web server (renting a Web server over the Internet). Includes: 1). The cost of renting Internet web server is omitted. 2). The designer does not need to know the details of the Web server architecture. 3). Short development cycle.

The basic principle of ZLSN2030 web page remote control is that the user use the generic HTML web page editor (such as Notepad, DreamWaver, etc.) design good one or more pages, its format is fully compatible with the ordinary HTLM web page. Use the "ZLAN web download" (as shown in figure 2)Download these pages to ZLSN2030. The user enters ZLSN2030 IP address in the browser to open the newly designed web page. Click the button on the webpage to output the command from the serial port of ZLSN2030 to the user MCU serial port, and the user MCU will take corresponding action after receiving the command. Of course, the user MCU can also send commands to ZLSN2030 to dynamically update the content of the webpage so that the temperature and other collected information can be displayed on the webpage. This will facilitate the use of the web to control MCU. Of course, the website can directly control the IO pin of ZLSN2030 to realize the function of the web IO module. ZLWeb uses the technology of "ZLAN HTML control", a technology similar to CGI, which links Web and applications, ZLAN supports more than 40,000 "ZLAN HTML controls". The "ZLAN HTML control" is different from the general web control. It does not need to be downloaded and installed without the need to set the browser security level. "ZLAN HTML control" is not an ActiveX or Java Applet control, it adopts plain text HTML that is fully compatible with existing browsers. And the control size is small (text bytes).

ZLSN2030 web control features:
1) Users can design their own web pages and download them. This brings convenience to the late upgrade and maintenance of the equipment.
2) Use the output command of "ZLAN HTML control" to SCM for control. A command can be an arbitrary hexadecimal (HEX format) command string.
3) Use the "ZLAN HTML control" to receive the command sent to ZLSN2030 by the SCM, and the dynamic status of the Web display the collection data. Any part of the web page can be modified.
4) The browser does not need to install special plug-ins. Unless you use a Java Applet.
5) Support to control via mobile phone (e.g. iphone), including wifi and GPRS network.
6) Use the ZLFs file management system to download the entire website, including pictures, Java applets and other files.
7) Support Login control to prevent unauthorized page control.
8) Support web port resetting to support access multiple ZLSN2030 web pages through an IP address on the Internet gateway.
9) Support the remote upgrade of the internal web page of ZLSN2030 (via Internet download page).
10) Support user custom control command function, customizable over 40,000 controls and commands.
11) If the user needs a larger page space, the ZLSN2030EX model can be selected to expand the page space.

The price of such a powerful ZLSN2030 is slightly higher than ZLSN2000. The launch of ZLSN2030 inject new vitality to the application of web-based monitoring inject, ZLSN2030 with mature technology, stable product, the complete solution and design tool, we believe it will also bring gospel to Ethernet monitoring application design engineers.