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

• Main Authors: Nagabhushan Raju KONDURU, Lakshmi Narayana ROSHANNA, Rajendra Prasad THOMMUNDRU, Chandrasekhar Reddy DEVANNA
• Format: Article
• Language: English
• Published: IFSA Publishing, S.L. 2012-01-01
• Series: Sensors & Transducers
• Subjects: ARM7LPC2148; MST radar transmitter; Ethernet controller LM3S6432
• Online Access: http://www.sensorsportal.com/HTML/DIGEST/january_2012/P_912.pdf

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 ADC’s and fast GPIO. Ethernet controller LM3S6432 is used to send sensors’ digitalized data over internet.