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Vol. 136, Issue 1, January 2012, pp. 96-104

 

Bullet

 

An Embedded Web based Real Time Application for Remote Monitoring & Controlling
of MST RADAR Transmitters

 

1 Nagabhushan Raju KONDURU, 1 Lakshmi Narayana ROSHANNA,
2 Rajendra Prasad THOMMUNDRU, 3 Chandrasekhar Reddy DEVANNA

1 Department of Instrumentation, Sri Krishnadevaraya University,

Anantapur, 515003, India

Tel.: 08554 - 255744

2 National Atmospheric Research Laboratory (NARL),

Gadanki, 517112, India

Tel.: +91 858 527 2003, fax: +91 858 527 2018

3Megabyte Technologies, Bangalore

Tel.: +91 974 014 3321

E-mail: knrbhushan@yahoo.com, hilakshmin@yahoo.com, trp1910@narl.gov.in, ravichandru@mail.com

 

Received: 3 November 2011   /Accepted: 24 January 2012   /Published: 30 January 2012

Digital Sensors and Sensor Sysstems

 

Abstract: An embedded web based radar transmitters control & interlock system is developed in the present work. This research activity facilitates controlling and monitoring 53-MHz, 2.5 Mega-watt peak power MST radar triode based transmitters via internet. This radar is a prime instrument for atmospheric science research with 32 transmitters powering 1024-element antenna array. A comprehensive safety interlock is built in to protect expensive devices; by sensing anode voltages, heater currents and airflow etc. It automatically prevents fatal damages by switching transmitter / RF off. The system is designed and developed using RISC microcontroller ARM LPC 2148 based on a 32- bit ARM7 TDMI-S CPU with real-time emulation and embedded trace support and 512 kB high speed flash memory. The microcontroller is a blend of serial communication interface, dual 10-bit ADCís and fast GPIO. Ethernet controller LM3S6432 is used to send sensorsí digitalized data over internet.

 

Keywords: ARM7LPC2148, MST radar transmitter, Ethernet controller LM3S6432

 

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