Introduction
A Wireless Sensor Network (WSN) is made up of several sensor nodes organized to form a cooperative network. These sensor nodes are autonomous sensors which have the capability of sensing, wireless communications and computing abilities which are used to observe physical and environmental conditions like temperature, pressure, sound, etc. Primarily the growth of these sensor networks was seen in military applications, but today it also has many consumer applications. Advanticsys is a USA based company which specializes in sensor networks and offers customized solutions based on remote monitoring system technologies + Low Cost.
WSN Platforms
The first platform of Wireless Sensor Network is the Embedded processor which schedules the tasks, data processing and complete functionality of the hardware. Embedded processors like Microcontroller, Field Programmable Gate Array etc. are used in the sensor nodes. The second platform is the Transceiver which has the responsibility of wireless communication with a sensor node. The third platform is Memory which consists of a flash memory and RAM and an external flash memory. The fourth platform is the Power Source. Communication and data processing results in the consumption of power from the sensor nodes, in order to maintain a constant supply of power, power can be stored in batteries or capacitors. The final platform is Sensor platform. This measures the change in physical or environmental conditions.
Applications of WSN
The Wireless Sensor Network was originally intended for military applications such as ocean monitoring and surveillance system for submarine detection etc. As the advancement in communications networks and sensor nodes increased they opened up a vast area in which these sensor networks can be applied. Some of the fields are Environmental Monitoring, Traffic Control, Health Monitoring, Infrastructure Security, Industrial sensing and much more.
Security Issues
In a simple scenario, resource limitation, wireless communication, secure sensitive data, is all vulnerabilities. It has threats in three layers which are Physical, Link and Network Layer. These sensor networks can only be deployed after eliminating these threats.
Advantages of WSN
The main advantage of these Wireless Sensor Networks is that it consumes less power and it has the ability to handle of failure of nodes. It avoids wiring issues. Besides it has a numerous benefits of the consumer applications. It also has the capability feature to withstand with the environmental conditions. This sensor device is very useful and recommended for all the companies and organizations.
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