29,382 research outputs found
Asynchronous Wi-Fi Control Interface (AWCI) Using Socket IO Technology
The Internet of Things (IoT) is a system of interrelated computing devices to
the Internet that are provided with unique identifiers which has the ability to
transfer data over a network without requiring human-to- human or human-to-
computer interaction. Raspberry pi-3 a popular, cheap, small and powerful
computer with built in Wi-Fi can be used to make any devices smart by
connecting to that particular device and embedding the required software to
Raspberry pi-3 and connect it to Internet. It is difficult to install a full
Linux OS inside a small devices like light switch so in that case to connect to
a Wi-Fi connection a model was proposed known as Asynchronous Wi-Fi Control
Interface (AWCI) which is a simple Wi-Fi connectivity software for a Debian
compatible Linux OS). The objective of this paper is to make the interactive
user interface for Wi-Fi connection in Raspberry Pi touch display by providing
live updates using Socket IO technology. The Socket IO technology enables
real-time bidirectional communication between client and server. Asynchronous
Wi-Fi Control Interface (AWCI) is compatible with every platform, browser or
device.Comment: 5 pages, 5 figures, published with Global Research and Development
Journal for Engineerin
Multiport VNA Measurements
This article presents some of the most recent multiport VNA measurement methodologies used to characterize these highspeed digital networks for signal integrity. There will be a discussion of the trends and measurement challenges of high-speed digital systems, followed by a presentation of the multiport VNA measurement system details, calibration, and measurement techniques, as well as some examples of interconnect device measurements. The intent here is to present some general concepts and trends for multiport VNA measurements as applied to computer system board-level interconnect structures, and not to promote any particular brand or produc
Distributed Real-Time Emulation of Formally-Defined Patterns for Safe Medical Device Control
Safety of medical devices and of their interoperation is an unresolved issue
causing severe and sometimes deadly accidents for patients with shocking
frequency. Formal methods, particularly in support of highly reusable and
provably safe patterns which can be instantiated to many device instances can
help in this regard. However, this still leaves open the issue of how to pass
from their formal specifications in logical time to executable emulations that
can interoperate in physical time with other devices and with simulations of
patient and/or doctor behaviors. This work presents a specification-based
methodology in which virtual emulation environments can be easily developed
from formal specifications in Real-Time Maude, and can support interactions
with other real devices and with simulation models. This general methodology is
explained in detail and is illustrated with two concrete scenarios which are
both instances of a common safe formal pattern: one scenario involves the
interaction of a provably safe pacemaker with a simulated heart; the other
involves the interaction of a safe controller for patient-induced analgesia
with a real syringe pump.Comment: In Proceedings RTRTS 2010, arXiv:1009.398
Remote Control and Monitoring of Smart Home Facilities via Smartphone with Wi-Fly
Due to the widespread ownership of smartphone devices, the application of mobile technologies to enhance the monitoring and control of smart home facilities has attracted much academic attention. This study indicates that tools already in the possession of the end user can be a significant part of the specific context-aware system in the smart home. The behaviour of the system in the context of existing systems will reflect the intention of the client. This model system offers a diverse architectural concept for Wireless Sensor Actuator Mobile Computing in a Smart Home (WiSAMCinSH) and consists of sensors and actuators in various communication channels, with different capacities, paradigms, costs and degree of communication reliability. This paper focuses on the utilization of end users’ smartphone applications to control home devices, and to enable monitoring of the context-aware environment in the smart home to fulfil the needs of the ageing population. It investigates the application of an iPhone to supervise smart home monitoring and control electrical devices, and through this approach, after initial setup of the mobile application, a user can control devices in the smart home from different locations and over various distances
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