Skip to main content

Internet Of Things Basics(Part-3)

How things are connected in IOT world. IT jobs are growing in this area across the world.

Earlier, we discussed how the IoT refers to the interconnection of distinguishable smart/intelligent objects or "things" and their virtual manifestation within the Internet or other IP structure. 

In essence, the IPSO Alliance describes smart objects as small computers at a cost of only a few dollars and with a minimal footprint. 

This means that, with the provision of processors (8-, 16- or 32-bit microcontrollers), memory (several tens of kilobytes), storage, and so on, along with an inherent ability to sustain an IP connection (perhaps limited to sending/receiving a few hundred kilobits per second), almost anything and everything can become connected at an affordable cost. 

These devices would typically be battery operated, although this is not an absolute requirement. As such, it is envisaged that these smart objects will be embedded in everyday products such as cars, light switches, and industrial machinery, enabling a myriad of applications for home and commercial automation, in factories, throughout industry, and even in healthcare situations. 

IoT basics part 3
Image courtesy|

What's more, smart objects can become responsible for enabling intelligent smart grids, cities, and transportation. So, the extended IoT concept incorporates the new generation of smart/intelligent objects, and we are now entrusting this technology to educate, notify, and inform us of events that we have deemed important — this part is inescapable, as there still needs to be human interaction. 

The scalability and flexibility of IP are suitable for the diverse range and potential number of applications, and it is its well-established architecture, with existing applications for email, Voice over IP (VoIP), video streaming, and so on, that affords the protocol its robust and adaptable usage. The IP stack has been regarded as large and perhaps cumbersome, requiring high amounts of processing power and memory. 

However, several lightweight revisions have emerged to accommodate smaller devices and lower energy footprints. Furthermore, the lightweight nature of the new generation IP stack has allowed itself to be used in conjunction with other protocols, such as low power Wi-Fi, ZigBee, and Bluetooth low energy. Since IP can run over almost anything, adapting the stack to run over ZigBee or Bluetooth low energy, for example, is a relatively straightforward task, as we highlight in Figure 6.3. As can be seen in the figure, a 6loWPAN adaptation layer is used cohesively to allow both ZigBee and Bluetooth low energy to coexist with the upper layers of the IP stack, namely IPv6 and User Datagram Protocol (UDP) /Transmission Control Protocol (TCP).


Popular posts from this blog

The best 5 differences of AWS EMR and Hadoop

With Amazon Elastic MapReduce (Amazon EMR) you can analyze and process vast amounts of data. It does this by distributing the computational work across a cluster of virtual servers running in the Amazon cloud. The cluster is managed using an open-source framework called Hadoop.

Amazon EMR has made enhancements to Hadoop and other open-source applications to work seamlessly with AWS. For example, Hadoop clusters running on Amazon EMR use EC2 instances as virtual Linux servers for the master and slave nodes, Amazon S3 for bulk storage of input and output data, and CloudWatch to monitor cluster performance and raise alarms.

You can also move data into and out of DynamoDB using Amazon EMR and Hive. All of this is orchestrated by Amazon EMR control software that launches and manages the Hadoop cluster. This process is called an Amazon EMR cluster.

What does Hadoop do...

Hadoop uses a distributed processing architecture called MapReduce in which a task is mapped to a set of servers for proce…

5 Things About AWS EC2 You Need to Focus!

Amazon Elastic Compute Cloud (Amazon EC2) - is a web service that provides resizable compute capacity in the cloud. It is designed to make web-scale cloud computing easier for developers.
Amazon EC2’s simple web service interface allows you to obtain and configure capacity with minimal friction.

The basic functions of EC2... 
It provides you with complete control of your computing resources and lets you run on Amazon’s proven computing environment.Amazon EC2 reduces the time required to obtain and boot new server instances to minutes, allowing you to quickly scale capacity, both up and down, as your computing requirements change.Amazon EC2 changes the economics of computing by allowing you to pay only for capacity that you actually use. Amazon EC2 provides developers the tools to build failure resilient applications and isolate themselves from common failure scenarios. 
Key Points for Interviews:

EC2 is the basic fundamental block around which the AWS are structured.EC2 provides remote ope…

6 Most Popular IoT Protocols Currently Being Used

The below is complete list of Protocols being used in Internet of things projects.

CoAP: Constrained Application Protocol. MQTT: Message Queue Telemetry Transport. XMPP: Extensible Messaging and Presence Protocol. RESTFUL Services: Representational State Transfer. AMQP: Advanced Message Queuing Protocol Websockets. 
5 Challenges in Internet-of-things mostly people look inHot IT Skills by Udemy and Dice