Characteristics And Features Of Tiny OS

In our project, we are trying to provide an embedded wireless system by using the Army base stations can monitor the health of soldiers using wireless body area sensor networks such as temperature sensor, heart beat sensor, etc. Base stations can also track the location of soldiers by using Global positioning system (GPS)

b) 1) Take the commands one by one from the main memory and execute the necessary commands and commands.

An operating system manages the hardware and software resources of the system. A computer must have an

Eliasson et al., (2015) states that ‘Small embedded systems equipped with a combination of sensors and/or actuators, as well as with networking capabilities, are the core building blocks of an Internet of Things’.

With the furtherance of computer networks extending boundaries and joining distant locations, wireless sensor networks (WSN) emerged as the new frontier in developing opportunities in order to collect and process data from remote locations. A wireless sensor network is a collection of nodes organized in a cooperative manner. Multiple sensor nodes arranged in proximity to sense an event and subsequently transmit sensed and collected information to a remote processing unit or base station. The nodes are able to communicate wirelessly and often self-organize after being deployed in an ad hoc fashion. More than 1000s or even 10,000 nodes are expected. Currently, wireless sensor

The mobile computing technology is an emerging technology, which consist of wireless sensor networks. The wireless sensor is the smallest unit of a network and some of the features supports large scale deployment, mobility, reliability and other applications. According to (Hoon-Jae, 2011), the main goals of WSNs are to deploy a number sensor devices over an unattended area and transmit to certain locations.

Sensor network protocols have a unique capability self-organizing. Another interesting feature of wireless sensor networks is that the sensor nodes cooperate with each other. Sensor nodes have an in-built processor, using which before transmission raw data is processed. These features facilitate wide range of applications of wireless sensor networks like biomedical, environmental, military, event detection and vehicular telematics.

Domestic Applications: Sensor networks can bring the idea of smart homes where we can monitor and control at site or remotely home appliances like air conditioning, heating, ventilation, refrigeration, security alarms etc.

The wireless sensor network is applicable in numerous life saving critical field because of low cost long battery life sensors. A sensor network comprises of sensors and routers to choose the administrator host that is called the coordinator [2]. A wireless sensor network is easy to use in the desired environment [6], and the information can be collected then processed and sent to a desired location. Recent break trough in wireless communication and micro-electro-mechanical systems (MEMS) [3-5] provides large scale, low power, multi-functional, and low cost network

Monitoring physical parameters such as temperature, pressure, humidity, etc. of process plant is important to continuously know the health of plant. Presently the various process parameters are monitored using conventional smart transmitters, transducers, etc. They need wiring, which not only increases cost of transfer of signal but also their reliability decreases due to physical interconnections, attenuation to the signal and general system becomes complex. Even in the presently available wireless system, they are either available for small range or are high power consuming if available for longer ranges and are very expensive. In order to overcome these problems, the author has suggested a distributed wireless environment to monitor the parameters of interest and send SMS alert to the operator in case of any predefined abnormality. The author has attempted to design and implement open architecture low cost medium range

At present, Wireless Sensor Network has becoming a hot technological topic with the development of computer science and wireless communication technology, wireless sensor network (WSNs) is a system shaped by a substantial number of sensor nodes, each one furnished with sensors to recognize physical phenomena, for example, heat, light, movement, or sound. Utilizing diverse sensors, WSNs can be implemented to backing numerous applications including security, diversion, mechanization, mechanical checking, and open utilities also state management. however, numerous WSN gadgets have serious asset demands as far as vitality, computation, and memory, brought about by a need to cutoff the expense of the substantial number of gadgets needed for some applications and by organization

Wireless Sensor Networks are formed by autonomous nodes containing partial memory, better range of communication, power and capable bandwidth. WSN are used to inspect the corporal and environmental conditions through a system and perform data processing. However, during data acquisition different types of issues and circumstances are to be resolved.

Programming Models for Sensor Networks: Currently, programmers are a lot of worried with low level points of interest like detecting and node to node communication raising a requirement for programming deliberations. Since the data gathered from the encompassing marvel is not for broadly useful figuring we require a reactive, event driven programming model. Resources in a sensor network are rare, where even a run of the mill implanted OS expending many KB of considered excessively. So programming models ought to help programmers in composing energy productive applications. We have to decrease the run time errors and complexity in the sensor network need to keep running for a long length without human intercession. Programming models ought to help programmers to compose transmission capacity proficient programs and ought to be joined by runtime systems that accomplish data transfer capacity effectiveness at whatever point conceivable.

nowadays sensors are anywhere. We take it for granted, however there are sensors in our cars, in our clever telephones, in factories controlling CO2 emissions, and even inside the ground tracking soil conditions in vineyards. while evidently sensors were around for a while, research on wireless sensor networks (WSNs) commenced returned within the Eighties and it's miles only in view that 2001 that WSNs generated an elevated hobby from commercial and research perspectives. This is due to the supply of less expensive, low powered miniature additives like processors, radios and sensors that have been regularly included on a unmarried chip (system on a chip (SoC)).

A wireless sensor network (WSN) is a network of nodes that sense and control the environment providing interaction between the machines and the surrounding environment. It is formed by large number of sensors nodes where each node is equipped with sensor to detect physical characteristic such as temperature, pressure, weight etc. [2]. WSN is a new revolutionary method which gathers information from sensor nodes providing a reliable and efficient network. With the growing technology of sensors, WSNs will become the key for internet of things. The current focus of sensor network is mainly on networking technology comprising of dynamic environment and the sensor nodes. The new research program of SenseIT provided the sensor networking with new capabilities such