As the World-Wide Web (WWW) continues to evolve, it is clear that its underlying technologies are useful for much more than just browsing the web. Web browsers have become the de factor standard user interface for a variety of applications including embedded real time applications such as Remote Data Acquisition System.This brings in a need for web services being deployed on various embedded processors such as Advanced RISC Machine (ARM) in real time context. The main aim of the project is to develop an embedded web server using ARM7 TDMI processor. The web pages which are required for the web server will be developed using HTML. This embedded web server which will be developed by using Embedded C language can be beneficial for mission critical applications, remote data acquisition systems, ATM and controlling devices such as servo motor, dc motor, stepper motor ,turning ON or OFF the stereo sets., use as dimmerstat to control light intensities. can be used in home automation, store programs in flash memory and run the according to need. Embedded systems are specialized computer systems designed and optimized to perform a particular task. Usually they are a part of a larger system or a machine In today's world, embedded systems are everywhere homes, offices, cars, factories, hospitals, plains and consumer electronics. They span all aspects of modern life and examples of their use are numerous. Modern embedded systems are able to connect to the internet and can be remotely maintained and diagnosed . M2M(Machine to machine) communication is growing with a considerable rate. The possibility to connect two or more embedded systems enables developers to build more powerful distributed systems such as networked embedded systems .Remote maintenance is performed by different communication protocols. The most common communication protocol is HTTP which enables remote system control and monitoring. A web server is a computer program that implements HTTP protocol. It accepts HTTP requests from clients like web browsers and serves HTTP responses which are usually HTML pages with linked objects. There are many web servers available, and a number of them are free, like Apache, AOL , Roxen . Internet Information Services, Sun Java System web Server are some of the most common commercial web servers. Some web servers can run on almost any operating system while others are platform specific. The general purpose web servers are intended to run on powerful server computers, workstations or personal computers and support a number of advanced features. On the other hand, web servers for embedded system shave limited resources and offer only a set of required features

1. EMBEDDED
WEB

3. Embedded Web server
 An Embedded Web Server is a microprocessor- or microcontroller-
based embedded system that contains an Internet software suite as
well as application code for monitoring and controlling external
systems. Such a system can serve web pages over a TCP/IP
network, allowing any browser with access to the network the
ability to control and monitor devices connected to the Embedded
Web Server.

4. WHY??

The Embedded Web Server is especially suited to embedded
Internet appliances and offers easy connectivity to any network via
an Ethernet or dial-up Modem connection. Our goal is to provide an
internet-enabled device that can be accessed remotely over a
network, through which an operator sitting on a remote computer
terminal can monitor and control other connected equipment. Such a
device may find applications in office and industrial automation,
high-speed gaming and medical science, to name a few.

5. General Structure of Embedded Web Server
Microprocessor
FLASH memory
 DRAM memory
network interface
Front application system of hardware
• Hardware system

6. center processing module
HTTP engine
 file system
configuration module
security module
 application program interface.
• software system

8.  To transfer information in this request-response manner both
the web service and the web browser must talk the same
language. That language is called Hypertext Transfer Protocol
or HTTP. HTTP is built on other standard protocols such as
TCP/IP.

9. Hypertext markup language (HTML) is a language used to
describe a webpage.
When a web browser receives content that is HTML it will
try to render the content into a web page. Similar to XML,
HTML is made up of tags, but unlike XML, HTML defines
what types of tags are acceptable.
HTML

10. Web pages from the embedded system (server) are transmitted
to the Web browser (client) , which implements the user interface
(Presentation layer).
WEB PAGES
WEB BROWSER
WORKING

11. Web-enabled devices use the HTTP (Hyper Text Transfer
Protocol) standard protocol to transmit Web pages from the
embedded system to the Web browser , and to transmit HTML
(Hyper Text Markup Languages) form the data from the browser
back to the device.

12. The HTTP protocol engine takes the request from the Web
browser and sends it on the TCP/IP. The HTTP protocol Engine
parses the request and sends it to the embedded application for
processing.
 After producing the results , the embedded application
generates the HTML code and feeds it to the HTTP Engine ,
which sends it back to the client using TCP/IP.

13. • Simplifies software and communications: The Embedded Web Server
contains dynamic web pages that allow the operator to control and
manipulate the embedded device over a TCP/IP-based network
•Offers increased functionality: Web-based GUIs offer a tremendous
advantage over traditional control and monitoring systems where the system’s
GUI software is running on the operator’s computer system itself. Unlike these
traditional systems which are OS-specific and need installation, a web-based
GUI is platform independent and needs no installation at the operator’s end
•Simplifies system management :Web pages can be used to monitor, control
and update the Embedded Web Server system. Any authorized user can access
the system through a browser on a client to conduct maintenance, change
system settings, and update system software

14. With Web access ability of the embedded devices will get
rapid development, the application in communication
equipment, information home appliances, instruments remote
management and other fields. Embedded Web server for
embedded devices provide network interface, to realize the
remote management and control, which is an important
technology of the network embedded equipment.
WHERE??

15. Traffic
monitoring
Video
monitorin
g
Power
infrastruct
ure
monitoring
APPLICATIONS

16. Web technology in embedded applications has distinct
advantages over legacy and custom communication
mechanisms due to the scalability and security. The amount
of knowledge and skills needed to create a web application
may be large. However embedded technology is vastly
becoming an important tool in our daily lives
CONCLUSION

17. THANK YOU!!!!
Presented By
C.Kavya Sree
13911A0416