IOSR Journal of Electronics and Communication Engineering (IOSR-JECE) e-ISSN: 2278-2834,p- ISSN: 2278-8735.Volume 10, Issue 2, Ver. IV (Mar - Apr.2015), PP 41-47 www.iosrjournals.org DOI: 10.9790/2834-10244147 www.iosrjournals.org 41 | Page Hull Monitoring System for Submarine K. Yashwanthi Mala, N. Samba Murthy, Dr. M. Kamaraju M.TECH Embedded systems Dept. of ECE Gudlavalleru Engineering college Assistant Professor Dept. of ECE Gudlavalleru Engineering college Professor and HEAD Dept .of ECE Gudlavalleru Engineering college Abstract: In ancient time, submarines are definitely in cigar-shaped. Their layout in beginning submarines looks noticeable often known as "teardrop hull". The hydrodynamic drag is decreased whenever underwater, but it reduces the sea-keeping abilities and improves pull while surfaced. Because the restrictions of the propulsion techniques in very beginning submarines powered them to manage surfaced most of the time, their own hull models were a compromise. Mainly because of the slower submerged speeds of those subs, commonly well below 18 km/h, the improved drag for submerged journey was acceptable. Key words: Lpc (Linear Predictive Coding), (Lcd (Liquid Crystal Display), Triac (Triode For Alternating Current), Uart (Universal Asynchronous Receiver/Trasmitter), Arm (Advanced Risc Machine) , Rf (Radio Frequency) I. Introduction Submarine is a watercraft able of individual process under the sea. That varies from a submersible, which has a much more minimal under the sea capacity. The expression many typically relates to a huge, crewed, self-directed vessel. It is also often used traditionally or colloquially to refer to slightly managed automobiles and robots, as well as medium sized or compact vessels, like the midget submarine as well as the wet sub. Applied as an adjective in phrases such as submarine wire, "submarine" means "under the sea". The noun submarine evolved as a reduced form of submarine boat. For causes of naval traditions, submarines are generally called to as "boats" instead of "ships", irrespective of their size. II. Block Diagram The block diagram for this system is shown in the figure 1, It consists of two power supply (L1117), two motors, two Arm controller (LPC2148), two LCD display, TRIAC, Buzzer, Switches, Driver (L293D), Temperature sensor (LM35), Smoke sensor (MQ6), Ultrasonic sensor, UART and a RF Receiver. Fig. 1 Block Diagram For Hull Monitoring System For Submarine III. Microcontroller (LPC2148) We selected LPC2148 microcontroller for our project execution, because of its speed. It is a 32-bit microcontroller with 32kb to 512kb flash memory. This controller supports totally 2 serial ports here we are using 2 microcontrollers for master and slave communication, both microcontrollers are communicating with UART communication. The slave controller contained sensors and it will send the data to the master controller the master will display this data in the LCD.