BY: MITALI BHOPAL TOPIC: UNDERWATER WIRELESS ITP (LAB)

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Presentation transcript:

BY: MITALI BHOPAL TOPIC: UNDERWATER WIRELESS ITP (LAB)

We can use Underwater Sensor Networks (UWSN): Ocean Sampling Networks Environmental Monitoring Undersea Explorations Disaster Prevention Assisted Navigation Distributed Tactical Surveillance

 Engineer explores underwater wireless communications. Sending and receiving message below water. The most common is using hydrophones. Under water communication is difficult due: 1.to factors like multi-path propagation, 2.to time variations of the channel.

 Underwater Acoustic Sensor Networks (UW-ASN) Is the enabling technology for these applications. Consist of a variable number of sensors. Unexplored area although underwater communications. Experimented since World War II in 1945, An underwater telephone was developed in the United States.

 Major challenges in the design of UW-ASN are: The available bandwidth is severely limited; Prone to failures because of fouling; The available bandwidth is severely limited; High bit error rates can be experienced; Usually batteries can not be recharged

Wireless information transmission through the ocean Is one of the enabling technologies for The development of future ocean-observation systems. Underwater wireless sensing systems are envisioned For stand-alone applications and Control of autonomous underwater vehicles (AUVs).

 Wireless Controller Underwater Robot Swims A waterproof tablet controller designed and built by York University researchers is allowing an underwater robot to go “wireless” in a unique way. Divers can program the tablet to display tags onscreen, similar to barcodes read

Wireless underwater Camera for viewing and recording exactly what is going on in the sea around you, with a 20 meter long cable. This is a professional grade video camera product for fishermen, scuba divers, marine biologists.

Underwater communication has been a major technological issue since the start of autonomous (scuba) divers and deep-sea vehicles (DSVs). wide-area sensor networks have enabled the close monitoring of environmental in case of tsunamis and volcanic ash clouds.

Underwater Sensor Networks is a very recent technology that tries to follow the same steps than terrestrial wireless networks in a very different and challenging network environment. There is an increasing interest in USWN technologies.