In this paper, the &bit MCGXI-ICl 1 MCU micro controller is used to receive data speed data from Doppler radar speed sensor. Vehicle speeds are detected by Doppler radar speed sensor and then send to a micro controller. The micro controller is programmed to detect the signal and calculate the speed of vehicle, display data on LCD, and concurrently send data to PC through RS-232 port via Serial Communication Interface. The GUI for PC is developed with VI36 progranuning to rcceive data €rani micro controller and capture picturc. VI36 is programmed to manual capture an image and also auto capture and auto save an image in directory if vehicle speed is over speed limit selected from micro controller. Also Microsoft's Access database program is used to saveirecord data in a database.
Present Era is completely a technological age. There are so many instruments or devices are invented day by day which are used in our everyday life. Security has now become an important fact. To secure our residences, industries & bank (where higher security is required)an "object detection & wireless signal transmission" circuit is designed. Using this circuit we will be able to protect our valuable things and make our life secured & safe. The circuits consist of NE555 timer, capacitor, diode, inductor, transistor, sound chip, speaker, led, resistor, IR led, TSOP 1738, 32 KHz crystal, trimmer, 4069UB. In this project, there are four sections: IR transmitter circuit IR receiver circuit Frequency transmitter circuit RF receiver circuit The proposed design has various desirable features such as low cost, simpler control and maintenance, and good efficiency.
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