internet enabled system control and monitoringvickysagarwal.tripod.com/projects/iescm.pdf ·...

INTERNET ENABLED SYSTEM CONTROL AND MONITORING

STUDY PHASE REPORT

BY

Vikas Agarwal

UNDER THE GUIDANCE OF

Dr. L. Umanand

T. V. Prabhakar

N. V. C. Rao

CENTRE FOR ELECTRONICS DESIGN AND TECHNOLOGY

INDIAN INSTITUTE OF SCIENCE BANGALORE - 560012.

November 2003

Indian Institute of Science CEDT

Internet Enabled System Control and Monitoring

11/25/2003 2 of 18

INDEX

1. NEED ANALYSIS ...........................................................................................................3

2. MOTIVATION.................................................................................................................4 3. PRODUCT CONCEPTUALIZATION..............................................................................5

4. PRODUCT DETAILS.......................................................................................................6 COMPONENT MODULES OF THE PRODUCT..........................................................................6 4.1 CLIENT PC.................................................................................................................6 4.2 WEB SERVER .............................................................................................................6 GUI….............................................................................................................................7 4.3 INTERFACE UNIT ........................................................................................................7 4.4 USB-JTAG INTERFACE DEVELOPMENT......................................................................8 4.4.1 USB CONTROLLER:.................................................................................................9 4.4.2 JTAG CONTROLLER:............................................................................................. 10 4.5 DSP CONTROL......................................................................................................... 10

5. SPECIFICATION REVIEW MINUTES......................................................................... 12 6. SCOPE OF WORK......................................................................................................... 13

7. TARGET SPECIFICATIONS......................................................................................... 14 8. TIME PLAN ................................................................................................................... 18



11/25/2003 3 of 18

1. Need Analysis The Internet Technology has clearly changed the way we communicate and get information. Basic idea of the project is to go one step further and control & monitor complex systems via Internet.

Fig 1. Basic Idea There are many applications for controlling and monitoring a system using Internet. The following are some such applications:

Distance-based engineering education that allows students to conduct laboratory experiments from their home PCs.

Remote monitoring and control Remote debugging and repair: The Embedded Designer can update the code in the

device (embedded controllers), or correct errors which are not caught during the prototype stage, or during early deployment in the field by OEMs, or debug the system from anywhere in the globe

Data Acquisition System

Instrumentation plant control

Security systems

Hazardous System control A good innovation from Daewoo Electronics is Internet enabled Refrigerator. The

information about food stored inside the refrigerator is made available by a barcode scanner. This information about food quality (expiry dates) and quantity information (kilograms) is instantly available. With this information, one may plan the purchase of additional food and other groceries

Internet Enabled Medical Applications

Internet enabled earthquake alert system



11/25/2003 4 of 18

2. Motivation

I. Consider a city such as Bangalore that has around 30–50 Engineering Colleges. Due to several factors such as Infrastructure, Space, Resources availability, Technical support etc, not every college will be able to setup a Laboratory such as Electromagnetic Lab. To overcome this problem concept of Virtual Lab is proposed. The key idea is to design and develop laboratories, which have real hardware set-ups and which can be virtually accessed by students or users via the Internet. Once a virtual laboratory has been set up, students or users will be able to conduct actual experiments from remote computers anywhere in the world twenty-four hours a day, as if they were working in actual laboratories. This technology greatly enhances the flexibility of laboratory education, and introduces students to the new paradigm of remote experimentation. The core of virtual laboratories is a cluster of general-purpose and/or specialised instruments interfaced to a set of personal computer systems connected to the Internet. With the ability to configure instruments and data analysis remotely via software, virtual laboratories facilitate the sharing of expensive instruments and equipment, and may well be the next important step in remote distant learning.

2a 2b

Fig 2a. Instruments in the Virtual Laboratory. 2b. Students conducting the virtual laboratory based experiment through the Internet at a

remote location

II. Remote debugging and repair: The Embedded Designer can update the code in the device (embedded controllers), or correct errors which are not caught during the prototype stage, or during early deployment in the field by OEMs, or debug the system from anywhere in the globe.



11/25/2003 5 of 18

3. Product Conceptualization

Fig 3a. Complete System Diagram

Fig 3b. IESCM Block Details

The Present Focus is to create a Virtual Laboratory to carry out experiments related to motor control and monitoring. For example: (1) Study Induction motor Speed – Torque Characteristics (2) Speed control and monitoring of dc motor (3) Position control of motor (4) voltage and frequency monitoring for V/f control drive of Induction motor.



11/25/2003 6 of 18

4. Product Details Component modules of the Product

Client PC

Web Server Interface Unit - Motherboard

USB – JTAG interface Development DSP Board

4.1 Client PC Internet Connection

Web Browser Multimedia Kit Pentium III or Higher

4.2 Web Server

Fig 4a. Web Server Setup Web Server Software (HTTPD or similar – Apache freely available)



11/25/2003 7 of 18

Matlab Web Server Audio-Video Streaming

Ethernet Interface to Motherboard Design a Virtual Experiment

Designing GUI - HTML forms for Control Inputs required for experiment and displaying results.

Establishing a connection between Client PC and Web Server, Test for Audio/Video and data transfer.

GUI

Fig 4b. GUI Example

4.3 Interface Unit

Interface components in this module: Interfaces

• Ethernet

VIRTUAL LAB

• Introduction

• Instruction

• Conduct Experiment

• References

• Suggestions

• Contact Us

• Demo



11/25/2003 8 of 18

• USB

• Audio Port

• Video Port

• Serial Port

• JTAG Interface to DSP

• IEEE1394/Fierwire/iLink port

• Wi-Fi Interface Controlling data movements

Ethernet Interface to Web Server Interface Software

Audio/Video Compression Techniques Board Design

PCB – EMI issues Populate PCB

Testing Board As all of the above interfaces except the JTAG interface to DSP are available on general PC motherboards, the task of would reduce to selection of the proper motherboard.

4.4 USB-JTAG Interface Development

An USB-JTAG Emulator provides a link between DSP Processor and Interface board. It is required for Programming and Debugging the DSP processor. Tasks to be done:

Exhaustive Study of USB Protocol Exhaustive Study of JTAG Protocol

Decision about implementing JTAG in FPGA or master TAP controllers

USB Controller selection from various vendors

JTAG TAP Controller selection Interface Design

Development of USB Device Drivers Interfacing Application (CCS – IDE) to USB Device driver

USB Firmware development



11/25/2003 9 of 18

USB controller – TAP controller Interface design Interface Software design

PCB Testing

Fig 4c. Block Diagram of USB-JTAG Controller

4.4.1 USB Controller: Texas Instruments TUSB3210 USB Controller is selected because of following features:

Multiproduct support with one code and one chip (up to 16 products with one chip)

Fully compliant with the USB release 2.0 full-speed specification

Supports 12 Mbits/s USB data rate (full speed)

Motherboard

USB Connector

USB Controller

TUSB3210

14 pin JTAG Connector

JTAG Controller

SN748990

RAM EEPROM

USB cable

USB Port

DSP Control Board

14 pin JTAG Connector

TMS320LF2407



11/25/2003 10 of 18

Supports USB suspend/resume and remote wake-up operation Integrated 8052 microcontroller with:

• 256 × 8 RAM for internal data

• 8K × 8 RAM code space available for downloadable firmware from host or I2C port.

• 512 × 8 shared RAM used for data buffers and endpoint descriptor blocks (EDB)

• Four 8052 GPIO ports, ports 0,1, 2, and 3

• Master I2C controller for external slave device access Operates from a 12-MHz crystal

On-chip PLL generates 48 MHz Supports a total of 3 input and 3 output (interrupt, bulk) endpoints

Power-down mode

4.4.2 JTAG Controller: SN74ACT8990 - IEEE STD 1149.1 (JTAG) TAP MASTERS WITH 16-BIT GENERIC HOST INTERFACES Members of the Texas Instruments SCOPE Family of Testability Products

Compatible With the IEEE Standard 1149.1-1990 (JTAG) Test Access Port and Boundary-Scan Architecture

Control Operation of Up to Six Parallel Target Scan Paths Accommodate Pipeline Delay to Target of Up to 31 Clock Cycles

Scan Data Up to 232 Clock Cycles Execute Instructions for Up to 232 Clock Cycles

Each Device Includes Four Bidirectional Event Pins for Additional Test Capability Inputs Are TTL-Voltage Compatible

16 – Bit Generic Host Interface

4.5 DSP Control To develop a TMS320LF2407 DSP Board for controlling Induction Motor.

Tasks to be done: Study TMS320F2407 Architecture



11/25/2003 11 of 18

Study DSP Board Architecture– Components, Circuits, Interfaces required Interface

• SRAM

• DAC

• Serial Interface

• JTAG Interface

• Analog Signal Conditioning

• Board Design

• Interfacing Software

• PCB – EMI issues

• Populate Board



11/25/2003 12 of 18

5. Specification Review Minutes Discussed the complexity of project

Originally it was planned to develop USB-JTAG interface for Downloading code and data from PC to DSP. However due to non-availability of technical information of TAP Controller of DSP processor TMS320F2407, the idea was dropped.

Suggestions were given to Download the code into DSP processor using Serial or Parallel communication

Idea was to download the client's code into the DSP, run the code and get back the results to client. It was then decided by committee that the code will already be there in the DSP and the client will just change some parameters of the code and see the results. If this part is completed successfully then go for downloading the code.

Use PC for Interface board instead of developing separate Motherboard One Project Assistant is allotted for Audio/Video Interfaces



11/25/2003 13 of 18

6. Scope of Work

Fig 5. Interface Diagram Virtual experiment – Speed Control of Motors

HTML client end GUI – turn On, Off, speed, direction, plot characteristics Interfacing with Matlab webserver

Webserver to interface board interaction (Ethernet) DSP board development

Interface Board – DSP Board Interface (Serial or Parallel or both) Video and Audio stream (support from Project Associate)



11/25/2003 14 of 18

7. Target Specifications

Client PC

Parameters

Specifications

Web Browser

Internet Explorer 6 (or above)

Netscape Navigator 6 (or above)

OS

Windows 98, 2000,XP

PC

PIII (or above) Internet Connection

Multimedia Kit

Web Server

Web Server Software

HTTPD and Matlab Web Server



11/25/2003 15 of 18

OS

Windows NT

PC

TCP/IP Networking Software Matlab 5.3 (or above)

512 MB RAM

Interface Unit - Motherboard

PC

Pentium III (or above)

Windows 98, 2000, XP

Interfaces

Ethernet

USB Audio port

Video Port

Serial Port

JTAG Interface IEEE1394/Firewire/iLink Port

Wi-Fi Interface

DSP Control Board



11/25/2003 16 of 18

DSP Processor

TI TMS320LF2407

Frequency

40 MIPS

Flash ROM

32K on chip

SRAM

128K words on board

Power Supply

Analog Part - ± 15V Flash memory programming of DSP 0-5V

Digital Part – 3.3V (onboard 3.3 volt regulators)

Connectors

Power supply JTAG port

I/O Connector Output PWM

Serial I/O port ADCIN 1

ADCIN 2

Interrupt

Reset

5 – pin (DVDD, DVSS, VCCA, AGND, VSSA) 14 – Pin Header (Standard Interface)

32 – pin Berg Stick 32 – pin Berg Stick

DB-9 Connector

16 – pin Berg Stick

16 – pin Berg Stick 16 – pin Berg Stick

Push Button



11/25/2003 17 of 18

Output

3 isolated PWM outputs for 3φ bridge

Environmental

Operating Temperature 100C to 500C

Humidity Range

25-90 %RH (non condensing)

Vibrations

1G

Availability

98%



11/25/2003 18 of 18

8. Time Plan

internet enabled system control and monitoringvickysagarwal.tripod.com/projects/iescm.pdf ·...

Documents