Aim To write a program for demonstrating constructors. Theory A constructor is a special method which has the same name as class name and that is used to initialize the objects (fields of an object) of a class. A constructor has the following characteristics: Constructor has the same name as the class in which […]
Aim To write a program for demonstrating data types, variables, operators, arrays, and control structures in Java. Theory Data Types A data type specifies the type of value a variable can store or the type of an expression. Java is a strongly typed language means that you should specify the type of a variable […]
Aim To write a program for demonstrating the basic structure of a Java program. Theory A Java program is a collection of one or more classes, in which, one class contains the main method. Before looking at the structure of a Java program, let’s see the structure of a Java class. Structure of a […]
Security Requirements Five functional components of security are defined in IoT reference architecture: Identity Management (IDM) Authentication Authorisation Key Exchange and Management (KEM) Trust and Reputation Layer 1 Security Attack Solution Security depends on the devices and technology used. Security solution for BLE at link-level is AES-CCM 128 authenticated encryption algorithm for confidentiality […]
Xively (formerly known as Cosm and Pachube) is an Internet of Things (IoT) platform owned by Google. Xively is basically a data collection, management, and distribution platform. Xively offers product companies a way to connect products, manage connected devices and the data they produce, and integrate that data into other systems. Xively is a […]
A service consists of a set of related software components and their functionalities. Each service has an associated service description. A service also has an associated Service Level Agreement (SLA). Cloud connects the devices, gateways, systems, applications, services, things, businesses and manufacturing processes. Cloud services can be considered as distribution service, a service […]
Business processes (BPs) refer to a sequence of actions or a set of processes logically related to each other. A business process contains a series of activities. An enterprise might have a number of interrelated processes, which serves a particular result or goal that may include M2M/IoT data acquiring, storing, organizing, and transactions using […]
In this article let’s explore the role of devices, gateways in IoT and also understand how data management takes place in an IoT system. Device The device management assigns ID and address for each device: ID: Each device is assigned an unique ID which is used for source and destination address Addressing: Header fields […]
In this article we will explore various web connectivity technologies and protocols that allow the connected devices in IoT to transfer data to the cloud and receive commands or data back. Data from connected devices route over the web in two types of communication environments as given below: Unconstrained environment web applications use HTTP […]
In the network layer or communication layer of the IoT system architecture, one or more communication technologies, either wired or wireless are used to collect the data, process the data and transfer the data to the cloud layer. In this article, let’s understand the basics of networking or the networking technologies used in IoT for […]