PONDICHERRY MARITIME ACADEMY

Edge Computing enables the deployment of computing resources and communication technologies through a unified computing infrastructure along with the transmission channel. By using edge computing, computational requirements are more easily fulfilled. Wherever there is an information gathering necessity or where a user performs a specific activity, it can be performed in real-time. Usually, increased efficiency and decreased operational costs are the two primary advantages connected with edge computing, that are defined below.   Advantages of Edge Computing Some advantages of Edge computing are discussed below- 1. Security While the emergence of IoT edge computing devices increases the networks' total attack vectors, it also offers some major safety benefits. The conventional cloud computing architecture is fundamentally centralized, which makes it extremely vulnerable to exploitation and power failures from decentralized denial of service (DDoS). Edge computing disburses co...

A Particularly Sensitive Sea Area (PSSA) is an area that needs special protection through action by IMO because of its significance for recognized ecological or socio-economic or scientific reasons and which may be vulnerable to damage by international maritime activities. The criteria for the identification of particularly sensitive sea areas and the criteria for the designation of special areas are not mutually exclusive. In many cases a Particularly Sensitive Sea Area may be identified within a Special Area and vice versa. Particularly Sensitive Sea Areas  Guidelines on designating a "particularly sensitive sea area" (PSSA) are contained in resolution A.982(24) Revised guidelines for the identification and designation of Particularly Sensitive Sea Areas (PSSAs). These guidelines include criteria to allow areas to be designated a PSSA if they fulfil a number of criteria, including: ecological criteria, such as unique or rare ecosystem, diversity of the ecosystem or vulnerab...

 What is the Internet of Things (IoT)? The internet of things, or IoT, is a system of interrelated computing devices, mechanical and digital machines, objects, animals or people that are provided with unique identifiers (UIDs) and the ability to transfer data over a network without requiring human-to-human or human-to-computer interaction. A thing in the internet of things can be a person with a heart monitor implant, a farm animal with a biochip transponder, an automobile that has built-in sensors to alert the driver when tire pressure is low or any other natural or man-made object that can be assigned an Internet Protocol (IP) address and is able to transfer data over a network. Increasingly, organizations in a variety of industries are using IoT to operate more efficiently, better understand customers to deliver enhanced customer service, improve decision-making and increase the value of the business. How does IoT work? An IoT ecosystem consists of web-enabled smart devices that...

What is Sextant? The sextant is an instrument used to measure angles. Mainly used at sea, the tool is so named because its arc is one-sixth of a circle – 60 degrees. It adheres to the principle of double reflection hence it can measure angles up to 120 degrees. Practically speaking, the arc of the sextant is a little over 60 degrees and therefore the total angle measurable is about 130 degrees. Sextant is an essential tool for celestial navigation and is used to measure the angle between the horizon and a visible object (or two objects at sea. The sextant is used to measure the following: Vertical Sextant Angle (VSA) Horizontal Sextant Angle (HSA) Altitudes Principle of the Sextant 1.       When a ray of light is reflected by a plane mirror, the angle of the incident ray is equal to the angle of the reflected ray, when the incident ray, reflected ray and the normal lie on the same plane 2.       When a ray of light suffers two su...

  Life rafts are survival equipment provided as a life-saving appliance on every seagoing merchant or passenger ship, in addition to the  lifeboats . Life rafts are much easier to launch than lifeboats. In emergencies, evacuation from the ship can be done without manually launching any of them, as the life rafts are designed with an auto-inflatable system. SOLAS Chapter III  gives all the details for types and the number of life rafts to be carried as per the size and type of the ship. Where Are Liferafts Located On Ships? Life rafts are normally located on the muster station, on the port and starboard side near the  lifeboat , and fwd and aft of the ship. The location generally depends on the size of the ship. Life rafts are stored in a fibreglass container, with a high-pressure gas used to inflate life rafts during an emergency. A Hydrostatic Release Unit (HRU) is connected to the raft container and ship, which releases the raft even after the vessel sinks in...