Making Safe Waves in Hazardous Areas!

2009 ◽  
Vol 42 (8) ◽  
pp. 246-248
Author(s):  
John Hartley
Keyword(s):  
Wireless Networks ◽  
Radio Frequency ◽  
Mobile Phones ◽  
Potential Risk ◽  
Cost Effective ◽  
Process Industry ◽  
Wireless Devices ◽  
Simple Task ◽  
Laptop Computers ◽  
Technical Director

As wireless devices such as mobile phones and laptop computers become more reliable and cost effective, there is growing interest amongst the process industry as to the benefits to be found from enabling such devices to be used in hazardous areas. However, unlike most industries, this is not a simple task. Installing wireless networks in hazardous areas requires careful, expert planning and execution. John Hartley, Technical Director of Extronics, explains the hazards posed by radio frequency sources, the issues involved when installing wireless networks in hazardous areas and how to minimise the potential risk.

scholarly journals A Database for the Radio Frequency Fingerprinting of Bluetooth Devices

Data ◽  
2020 ◽  
Vol 5 (2) ◽  
pp. 55
Author(s):  
Emre Uzundurukan ◽  
Yaser Dalveren ◽  
Ali Kara
Keyword(s):  
Wireless Networks ◽  
Radio Frequency ◽  
Data Acquisition ◽  
Data Acquisition System ◽  
Physical Layer ◽  
Acquisition System ◽  
Wireless Devices ◽  
Malicious Attacks ◽  
Distinctive Features ◽  
Important Requirement

Radio frequency fingerprinting (RFF) is a promising physical layer protection technique which can be used to defend wireless networks from malicious attacks. It is based on the use of the distinctive features of the physical waveforms (signals) transmitted from wireless devices in order to classify authorized users. The most important requirement to develop an RFF method is the existence of a precise, robust, and extensive database of the emitted signals. In this context, this paper introduces a database consisting of Bluetooth (BT) signals collected at different sampling rates from 27 different smartphones (six manufacturers with several models for each). Firstly, the data acquisition system to create the database is described in detail. Then, the two well-known methods based on transient BT signals are experimentally tested by using the provided data to check their solidity. The results show that the created database may be useful for many researchers working on the development of the RFF of BT devices.

scholarly journals Practical Cross-Layer Radio Frequency-Based Authentication Scheme for Internet of Things

Sensors ◽  
2021 ◽  
Vol 21 (12) ◽  
pp. 4034
Author(s):  
Arie Haenel ◽  
Yoram Haddad ◽  
Maryline Laurent ◽  
Zonghua Zhang
Keyword(s):  
Internet Of Things ◽  
Radio Frequency ◽  
Real Life ◽  
Computation Time ◽  
Cost Effective ◽  
Battery Life ◽  
Cross Layer ◽  
Security Level ◽  
Cost Of Energy ◽  
Iot Devices

The Internet of Things world is in need of practical solutions for its security. Existing security mechanisms for IoT are mostly not implemented due to complexity, budget, and energy-saving issues. This is especially true for IoT devices that are battery powered, and they should be cost effective to be deployed extensively in the field. In this work, we propose a new cross-layer approach combining existing authentication protocols and existing Physical Layer Radio Frequency Fingerprinting technologies to provide hybrid authentication mechanisms that are practically proved efficient in the field. Even though several Radio Frequency Fingerprinting methods have been proposed so far, as a support for multi-factor authentication or even on their own, practical solutions are still a challenge. The accuracy results achieved with even the best systems using expensive equipment are still not sufficient on real-life systems. Our approach proposes a hybrid protocol that can save energy and computation time on the IoT devices side, proportionally to the accuracy of the Radio Frequency Fingerprinting used, which has a measurable benefit while keeping an acceptable security level. We implemented a full system operating in real time and achieved an accuracy of 99.8% for the additional cost of energy, leading to a decrease of only ~20% in battery life.

The Use of Photogrammetry in Piping Design

1983 ◽  
Vol 197 (2) ◽  
pp. 125-138 ◽  
Author(s):  
P A Bracewell ◽  
U R Klement
Keyword(s):  
Information Retrieval ◽  
Mathematical Formulation ◽  
Three Dimensional ◽  
Cost Effective ◽  
Process Industry ◽  
Process Plant ◽  
Definition Of ◽  
High Degree ◽  
Positional Data

Piping design for ‘revamp’ projects in the process industry requires the retrieval of large amounts of ‘as-built’ data from existing process plant installations. Positional data with a high degree of accuracy are required. Photogrammetry, the science of measurement from photographs, was identified in Imperial Chemical Industries plc (ICI) as a suitable tool for information retrieval. The mathematical formulation enabling the definition of three-dimensional positions from photographic information is described. The process of using ICI's photogrammetric system for the definition of complete objects such as structures and pipes is illustrated. The need for specialized photogrammetric software for design purposes is explained. A case study describing how the photogrammetric system has been applied is described and graphical outputs from this exercise are shown. It is concluded that this particular photogrammetric system has proved to be a cost effective and accurate tool for the retrieval of ‘as-built’ information.

scholarly journals Advanced Footstep Power Generation using RFID for Charging

2021 ◽  
Vol 9 (12) ◽  
pp. 969-980
Author(s):  
Priyanka Naresh Chandra Dayal
Keyword(s):  
Power Generation ◽  
Radio Frequency ◽  
Mobile Phone ◽  
Mobile Phones ◽  
Radio Frequency Identification ◽  
Piezoelectric Sensors ◽  
Charging Time ◽  
Time Period ◽  
Frequency Identification ◽  
Day By Day

Abstract: Day by day, the population of the country is increasing and the requirement of the power is also increasing in many ways. So, reforming this energy back to usable form is the major solution for future needs. In this Footstep power generation project, power is generated by human’s footsteps, so as to charge the battery by storing the power generated with the help of piezo sensors. The power stored in the battery, used to charge the mobile phones using RFID card. This system is powered by Atmega 328 microcontroller, it consists of Arduino IDE, RFID Sensor, USB Cable and LCD. When power is on in the system, the system enters into the registration mode. Three users can registered. Once all the users entered in the system, then the system asks to swipe the card and connect the charger. Initially all the user is given 5 minutes of charging time as default. When card is swiped and the user is authorized, the system turns on for charging the Mobile phone within a given time period. Keywords: Arduino Uno, Arduino IDE, Piezoelectric Sensors, RFID (Radio Frequency Identification ), LCD

Nep-Endotrainer: A cost-effective home-made laparoscopic simulation tool

2021 ◽  
Vol 23 (2) ◽  
pp. 52-55
Author(s):  
Uttam Laudari ◽  
Deepak Mahat ◽  
Rosi Pradhan ◽  
Suyog Bhandari ◽  
Deepak Raj Singh
Keyword(s):  
Laparoscopic Surgery ◽  
Mobile Phones ◽  
Cost Effective ◽  
Simulation Tool ◽  
Drilling Machine ◽  
Web Camera ◽  
The Cost ◽  
Training Modules ◽  
Established Treatment ◽  
The Web

Introduction: Laparoscopic surgery is an established treatment modality worldwide. Opportunities to acquire this skill using expensive simulation at workplace are not always feasible due to cost, time and accessibility constraints. Nep-Endotrainer is a cost effective homemade laparoscopic simulation tool built in Nepal. Methods: Nep-Endotrainer was built using plastic manikins easily available in market. Nine apertures were created with a drilling machine, four on each side of umbilicus and one at the epigastric region. These apertures were covered by thick piece of rubber of vehicle tire with apertures in them. Logitech® C270 HD webcam was fixed interiorly with metal screws. The base of the manikin was fixed to a wooden board with hinge joint. Five different interchangeable training modules were assembled in 10×10 cm2 size wooden boards. The LED light was fixed interiorly near the web camera. The camera USB can be easily connected with laptops, tablets and mobile phones. We used discarded hand instruments from laparoscopic centers to reduce the cost of the endotrainer. Conclusion: Nep-Endotrainer is accessible to any personal budget and can be readily constructed. It allows more frequent practice at home, outside the venue and hours of surgical departments.

Wireless Grids

2016 ◽  
pp. 293-320 ◽  
Author(s):  
Mariela J. Curiel H.
Keyword(s):  
Mobile Phones ◽  
Job Scheduling ◽  
Management Strategies ◽  
Simulation Models ◽  
Real Data ◽  
Battery Life ◽  
Wireless Devices ◽  
Grid Resource ◽  
Job Management ◽  
Wireless Grids

Wireless grids extend the capability of Grid Computing by including a collection of wireless devices of diverse characteristics, such as sensors, mobile phones, laptops and special instruments. These new resources increase the power and accessibility of grids. Wireless devices can be grid resource consumers or grid resource providers. This chapter focuses in the use of mobile devices as resource providers. Some characteristics of these resources, such as limited CPU power, small screen, short battery life, and intermittent disconnection, are genuine challenges for the development of job management strategies. Our goal is to depict recent proposals in resource discovering, monitoring and job scheduling. The main contributions of the last five years will be described along the chapter. The highlights of the review includes: the use of agent technology; solutions oriented to applications composed of independent tasks and the lack of studies using either real platforms or real data in simulation models.

Developing Brand Assets with Wireless Devices

2005 ◽  
pp. 175-192 ◽  
Author(s):  
Jari H. Helenius ◽  
Veronica Liljander
Keyword(s):  
Literature Review ◽  
Mobile Phones ◽  
Communication Channels ◽  
Wireless Devices ◽  
Mobile Telecommunications ◽  
Mobile Channel ◽  
Managerial Implications

Advancements of the wired Internet and mobile telecommunications offer companies new opportunities for branding but also create a need to develop the literature to incorporate the new communication channels. This chapter focuses on the mobile channel and how mobile phones can be used in branding activities. Based on a literature review and practical examples, the chapter discusses how brand managers can utilize the mobile channel to strengthen brand assets. Four mobile branding (m-branding) techniques are proposed and their impact on brand assets discussed. Managerial implications and suggestions for further research are provided.

Electronic Business over Wireless Device

2011 ◽  
pp. 384-396
Author(s):  
Richi Nayak ◽  
Anurag Nayak
Keyword(s):  
Mobile Phones ◽  
Exponential Growth ◽  
Electronic Business ◽  
Wireless Devices ◽  
Business Applications ◽  
Wireless Device ◽  
Basic Concepts ◽  
High Level ◽  
The Voice

Research and practices in electronic businesses over wireless devices have recently seen an exponential growth. This chapter presents the basic concepts necessary to understand m-business applications and a case study of the voice driven airline-ticketing system that can be accessed at any time, anywhere by mobile phones. This application offers maximum functionality while still maintaining a high level of user convenience in terms of input and navigation.

The Adverse Effect of Electromagnetic Radiation From Cellular Base Stations in Nigeria

2021 ◽  
pp. 269-280
Author(s):  
Ndidi Stella Arinze ◽  
Patrick Uche Okafor ◽  
Osondu Ignatius Onah
Keyword(s):  
Field Strength ◽  
Radio Frequency ◽  
Electromagnetic Radiation ◽  
Mobile Phones ◽  
Absorption Rate ◽  
Specific Absorption Rate ◽  
Base Stations ◽  
Telecommunication Industry ◽  
Specific Absorption ◽  
The People

On a global scale, the telecommunication industry is experiencing tremendous growth in mobile phones. Mobile phones communicate with base stations that are erected by the telecommunication industry. The base station produces radio frequency and exposes the people near the base stations to radiation. The effect of electromagnetic radiation from four base stations located at the residential area was studied by measuring their electric field strength and calculating their magnetic field strength and power density at different distances covering a frequency range of 900MHz to 2100MHz. The obtained values showed that the four cellular base stations are operating above the standard values of the International Commission on Non-Ionizing Radiation Protection Electromagnetic Field Radiation. The specific absorption rate was measured to determine the amount of radio frequency electromagnetic radiation absorbed by the human body. The result which is in the range of 3.22-3.70 W/kg is higher than the acceptable 2 W/kg for localized specific absorption rate.

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