Research Paper On Zigbee

Is social media safe enough for schools to allow students to use it on their school WiFi? Or is it too threatening? Why should schools allow students to use their WiFi for social media? Numerous schools restrict students from using social media on their WiFi by blocking them from being used. Although schools currently block social media on their WiFi to ensure student safety, social media should be unblocked on the school WiFi because it can guide students to become more knowledgeable about opportunities in their school, classrooms can use it in their schoolwork, and when abstained from use by high users it can evoke anxiety and depression.

The Gateway will provide the interface between the Sensor Network and the Internet. Each Gateway will then communicate with a central router that is connected to the Internet. To ensure that the Gateway’s WiFi signal is able to reach the central router a directional antenna and amplifier can be used to increase the gain of the transmitted signal. Both the Sensor Modules and Gateway should be solar powered with a battery back up. The diagram below outlines the flow of data in the network. In this diagram the circles represent the Sensor Modules, the squares represent the Gateways, the triangle represents an Internet WiFi Hotspot, and each color represents a separate network. Separate Zigbee networks are created around each Gateway. Each Zigbee network will use different mesh network id and channel number. Each of the Gateways will then communicate with the Internet WiFi

In this research paper we review three promising short-range wireless communication such as Radio FrequencyIdentification (RFID), Bluetooth, zigbee and Near-field Communication (NFC).NFC mobile services are an important emerging areafor NFC technology, with great potential for growth. The NFC Forum’s strategy for accelerating the growth of this business areaincludes recognizing and describing what is needed to realize successful NFC mobile services, such as key technologies, typical usecases, and the structure of the overall ecosystem. The success NFC across a broad range of applications depends on its large-scaleadoption by enterprises and consumers. This implies the need for simple, low-cost implementation of the technology in a wide variety ofdevices. This paper discusses NFC technology in detail along with its protocols, communication modes, comparison with other

The use of IoT in the development of autonomous vehicles has led to the general reduction of fatalities (Sheng et.al, 2013). The reduction of fatalities is from the following aspects of driverless cars which are improved on by the use of IoT in the vehicle technology.

In the recent years, wireless technologies have taken a new dimension in the ways society lives. Wireless broadband is available to everyone. Whether the users are at home, driving the car, sitting in the park, and it would even work while people are a pleasure boat ride in the middle of a lake. And because of this, the need to have information at any time and be connected in all places, all the time has been satisfied.

The deceleration of vehicle speed is demonstrated successfully with the embedded system. Along with this, android based notification system consisting of image and voice output worked efficiently during the testing of embedded system. This work in progress opens opportunities for additional analysis and implementations. The measuring characteristics of sensors are for low speed conditions. When applied in higher speed situations, high-end and enhanced senors with higher range can be implemented. The notification app developed is only for android platform, in future the application can be ported to other

In recent years, the use of intelligent systems in cars has developed considerably. These systems use wireless sensor networks to monitor and transmit the condition of the car and the driver. Smart cars which use software techniques to control engine speed, steering, transmission, brake etc. has improved the quality of driving

We conclude that we were able to successfully incorporate all the four features mentioned in this paper into our prototype model. This will be useful for mankind .Accidents that occur due to human errors can be completely avoided. It will be useful for disabled people and people who are not well versed in driving.

The safety of the citizens is the priority of the emergency management for each and every event that occurs. Early warning and communicating with the citizens allows time for the individuals to take action and seek shelter. As technology advances, so to, must the methods of communicating the warning of threats to the citizens. The various forms of communication must be encompassed into a system that is both quick and multi-faceted. The Integrated Public Alert and Warning System is diverse and allows for alerts to be broadcast over various communication devices as a method of mitigation and preparedness.

PTC is a computer based traffic management system that includes global positioning system (GPS), on-board computers and digital wireless communication data networks that calculate the braking distances for different types of trains and transmit information about train speed. It can also stop the train if the crew is unable to do so in an emergency. Specifically, PTC does the following: (1) monitor and control train movements with the intent to prevent train collisions; (2) Enforce speed limits to avoid over-speed derailments; (3) provide protection for workers on or near tracks within their work zones; and (4) keep trains from moving through misaligned switches or when a main line switch has been improperly positioned through human error (Lindsey, 2009). After the Philadelphia accident in 2015, the NTSB reported that derailment could have been prevented had positive train control technology (PTC) been operational on the effected segment of track (Weikel,

(Rainie and Perrin), there may now be a readily available technology to communicate with a broader audience, similar to the Emergency Alert System (EAS), which also supports AMBER Alert systems Wireless Emergency Alerts (WEA) program (Federal Communications Commission), and improve first responder response times and reduce accidents. With the availability and preponderance of use of smartphone and smart vehicle technology, an improved emergency vehicle preemption system is at hand. The emergency vehicle preemption systems in use today (Figure 3), need to be upgraded so that when emergency vehicles are enroute to an incident their position is broadcast to smartphones and smart vehicles along the intended path.

The concept of internet of vehicle is shown in Fig.10. The converging technologies of IoV are related to electric vehicle, autonomous vehicle etc. The IoV can also deals with the vehicle to vehicle (V2V), vehicle to device (V2D), vehicle to infrastructure (V2I) and vehicle to grid (V2G) communication.

Figure 1 23 shows the proposed network arrangement between the nodes and their associated roles within the ZigBee network. The roles within the network are in accordance with the functionalities and requirements of each type of device as specified by the ZigBee networking standard. The PC/base station has been appointed the role of coordinator since its functions include hosting the SLAM and GUI processes. Therefore the PC/base station is required to transmit GUI data commands and receive updated sensor data to and from both quadcopters. Furthermore as these processes are computationally intensive and require a lot of memory resource; the PC/ base station must be mains powered; reinforcing the requirement for it to be a coordinator. The quadcopters have been appointed the role of routers so that they are able to relay data intended for the coordinator between each other, if one of the quadcopters should fall beyond the range of the coordinator. This would not have been possible if they were appointed the role of end devices. The quadcopters will be battery powered although the ZigBee standard for routers recommend that they be mains powered. Nevertheless, this recommendation was made out of preventing different network segments from falling if power to the router is lost. However this is not applicable in terms of this project as the routers will not be connected to any other network segments.

1. The track circuits are considered as the vital component of signaling system to achieve safety of train operations. Various Accident Enquiry Committees have recommended to bring more and more tracks under track circuiting to safeguard against reception of trains on occupied lines. The track circuiting could not achieved desired progress die to virtual scarcity of wooden sleepers, prohibitive costs and environmental consciousness in the country and the world at large. Availability of concrete sleepers have solved the problem to some extent but track circuiting on loop lines, points and crossings still suffers for want of adequate supply and insertion of concrete sleepers.

This project is nothing but as advanced version of currently running Railway Reservation System used by IRCTC. The passenger can individually select his seat as per the preferred berth unlike the current system which provides seat as per the availability. The transparency in existing system is compromised means one can illegally book the ticket and sell them at higher price. In our system we overcome this problem by providing more security by using