scholarly journals Radiofrequency Technologies of Local Positioning in Healthcare

2020 ◽  
Vol 23 (3) ◽  
pp. 62-79
Author(s):  
D. S. Bragin ◽  
I. V. Pospelova ◽  
I. V. Cherepanova ◽  
V. N. Serebryakova
Keyword(s):  
Moving Objects ◽  
Data Transfer ◽  
Indoor Positioning ◽  
Radio Waves ◽  
Good Communication ◽  
Medical Facilities ◽  
Medical Sensors ◽  
Bibliographic Retrieval ◽  
Hospital Building ◽  
Quality Of Medical Care

Introduction. Localization of objects position in closed space plays an important role in many areas of human activity, including medicine. Using indoor-positioning technologies as a part of telemedicine systems allows one to improve the quality of medical care and to reduce mortality of patients. Therefore, indoor-positioning technologies contribute to achieve the goals outlined in the Russian Federation government`s program "Healthcare development". Aim. To study the applicability of modern radiofrequency technologies for localization of patients inside a hospital building. Materials and methods. Scientific sources devoted to indoor-positioning based on radiofrequency technologies were analyzed. The methods used included: - bibliographic retrieval; - selection and verification of sources based on their relevance; - analysis of sources by methods of deconstruction and comparative analysis . Results. The result of the analysis indicated that radiofrequency positioning technologies allow one to locate objects using radio waves properties. The disadvantage of the technology is the penetration of radio signal through walls and floors. Given this, it is necessary to use complex algorithms to detect an object with accuracy to a specific room. Despite this disadvantage, radiofrequency technologies can be used for positioning in medical facilities since they are easy in deployment and service. Also, they are used in ready-made commercial solutions. ZigBee technology is an exception because it does not allow one to track moving objects in real-time. Conclusion. Based on the study it was concluded that BLE technology is the most suitable for indoor-positioning in medical facilities. It is energy-efficient, it has sufficiently fast data transfer rate, good communication radius and a large range of ready-made communication equipment. It is also worth noting that most wireless medical sensors exchange data via the BLE interface.

scholarly journals Sensing Framework for the Internet of Actors in the Value Co-Creation Process with a Beacon-Attachable Indoor Positioning System

Sensors ◽  
2020 ◽  
Vol 21 (1) ◽  
pp. 83
Author(s):  
Keiichi Zempo ◽  
Taiga Arai ◽  
Takuya Aoki ◽  
Yukihiko Okada
Keyword(s):  
Radio Wave ◽  
Indoor Positioning ◽  
Measurement Range ◽  
Pulse Interval ◽  
Retail Stores ◽  
Positioning System ◽  
Radio Waves ◽  
Positioning Systems ◽  
Environment Recognition ◽  
Indoor Positioning System

To evaluate and improve the value of a service, it is important to measure not only the outcomes, but also the process of the service. Value co-creation (VCC) is not limited to outcomes, especially in interpersonal services based on interactions between actors. In this paper, a sensing framework for a VCC process in retail stores is proposed by improving an environment recognition based indoor positioning system with high positioning performance in a metal shelf environment. The conventional indoor positioning systems use radio waves; therefore, errors are caused by reflection, absorption, and interference from metal shelves. An improvement in positioning performance was achieved in the proposed method by using an IR (infrared) slit and IR light, which avoids such errors. The system was designed to recognize many and unspecified people based on the environment recognition method that the receivers had installed, in the service environment. In addition, sensor networking was also conducted by adding a function to transmit payload and identification simultaneously to the beacons that were attached to positioning objects. The effectiveness of the proposed method was verified by installing it not only in an experimental environment with ideal conditions, but posteriorly, the system was tested in real conditions, in a retail store. In our experimental setup, in a comparison with equal element numbers, positioning identification was possible within an error of 96.2 mm in a static environment in contrast to the radio wave based method where an average positioning error of approximately 648 mm was measured using the radio wave based method (Bluetooth low-energy fingerprinting technique). Moreover, when multiple beacons were used simultaneously in our system within the measurement range of one receiver, the appropriate setting of the pulse interval and jitter rate was implemented by simulation. Additionally, it was confirmed that, in a real scenario, it is possible to measure the changes in movement and positional relationships between people. This result shows the feasibility of measuring and evaluating the VCC process in retail stores, although it was difficult to measure the interaction between actors.

scholarly journals A light protocol for tracking secure stuff for the internet of things

2018 ◽  
Vol 7 (3) ◽  
pp. 1491
Author(s):  
Dr Chalasani Srinivas ◽  
Dr Srinivas Malladi
Keyword(s):  
Internet Of Things ◽  
Moving Objects ◽  
Data Transfer ◽  
Low Cost ◽  
The Internet ◽  
Authentication Code ◽  
Ipv6 Address ◽  
Internet Connections ◽  
Identity System ◽  
The Internet Of Things

The Internet of Things (IoT) is growing in the web of an age-old IPv6 address for Internet connections and messages that arise between these and other devices and systems that work with the Internet. It is equipped with the unique ID and data transfer capability through the network. Among other things, tracking and tracking online travel is a major issue. Although there are many tracking techniques for moving objects, many are at risk. So there is a need for tracking the safety of an object Safety protocols should provide visibility and tracking of street objects in support of the Internet (IoT). This protocol is based on the RFID Identity System for IoT Objects. Existing ones do not provide authentication of sites that lead to fakes. Great use of energy. The proposed protocol improves road safety tracking using the base protocol light and SPDL. The requested protocol is intended to ensure accuracy, accuracy, confidentiality and encryption. To ensure safe monitoring of objects, the requested protocols use cryptic primitives that use HMAC concepts that are used to authenticate an object. This protocol introduction relies on code authentication code (CMC), which is used to reduce power consumption at low cost. The testing of a test network evaluates protocol implementation and is found to be safer and requires less calculation than existing protocols.  

scholarly journals �A Phenomenal Person and Doctor�: Thank You Letters to Medical Care Providers (Preprint)

2016 ◽  
Author(s):  
Talya Miron-Shatz ◽  
Stefan Becker ◽  
Franklin Zaromb ◽  
Alexander Mertens ◽  
Avi Tsafrir
Keyword(s):  
Medical Care ◽  
The United States ◽  
Care Providers ◽  
Good Care ◽  
Patient Centered ◽  
Medical Facilities ◽  
Centered Care ◽  
Quality Of Medical Care ◽  
The Web

BACKGROUND Thank you letters to physicians and medical facilities are an untapped resource, providing an invaluable glimpse into what patients notice and appreciate in their care. OBJECTIVE The aim of this study was to analyze such thank you letters as posted on the Web by medical institutions to find what patients and families consider to be good care. In an age of patient-centered care, it is pivotal to see what metrics patients and families apply when assessing their care and whether they grasp specific versus general qualities in their care. METHODS Our exploratory inquiry covered 100 thank you letters posted on the Web by 26 medical facilities in the United States and the United Kingdom. We systematically coded and descriptively presented the aspects of care that patients and their families thanked doctors and medical facilities for. We relied on previous work outlining patient priorities and satisfaction (Anderson et al, 2007), to which we added a distinction between global and specific evaluations for each of the already existing categories with two additional categories: general praise and other, and several subcategories, such as treatment outcome, to the category of medical care. RESULTS In 73% of the letters (73/100), physicians were primarily thanked for their medical treatment. In 71% (71/100) of the letters, they were thanked for their personality and demeanor. In 52% cases (52/100), these two aspects were mentioned together, suggesting that from the perspective of patient as well as the family member, both are deemed necessary in positive evaluation of medical care. Only 8% (8/100) of the letters lacked reference to medical care, personality or demeanor, or communication. No statistically significant differences were observed in the number of letters that expressed gratitude for the personality or demeanor of medical care providers versus the quality of medical care (χ21, N=200=0.1, not statistically significant). Letters tended to express more specific praise for personality or demeanor, such as being supportive, understanding, humane and caring (48/71, 68%) but more general praise for medical care (χ21, N=424=63.9, P<.01). The most often mentioned specific quality of medical care were treatment outcomes (30/73, 41%), followed by technical competence (15/73, 21%) and treatment approach (14/73, 19%). A limitation of this inquiry is that we analyzed the letters that medical centers chose to post on the Web. These are not necessarily a representative sample of all thank you letters as are sent to health care institutions but are still indicative of what centers choose to showcase on the Web. CONCLUSIONS Physician demeanor and quality of interaction with patients are pivotal in how laymen perceive good care, no less so than medical care per se. This inquiry can inform care providers and medical curricula, leading to an improvement in the perceived quality of care.

Hybrid BCI Controller for a Semi-Autonomous Wheelchair

2019 ◽  
Author(s):  
Vidya K. Nandikolla ◽  
Travis K. van Leeuwen ◽  
Amiel Hartman
Keyword(s):  
Evoked Potential ◽  
Moving Objects ◽  
Data Transfer ◽  
Response Times ◽  
Extended Period ◽  
Data Transfer Rate ◽  
Transfer Rates ◽  
Smart Wheelchairs ◽  
Lower Accuracy ◽  
Electroencephalogram Eeg

Abstract Smart wheelchairs with semi or fully autonomous functions, can greatly improve the mobility of physically impaired persons. However, most are controlled using inputs that require physical manipulation (e.g. joystick controllers) and for persons with severe physical impairments this method of control can be too demanding. A noninvasive brain-computer interface (BCI) technology-based controller could bridge between the smart wheelchairs users and physically impaired persons with severe conditions. Current BCI controlled wheelchairs rely on detecting steady-state visually evoked potential (SSVEP) responses as these typically have the greatest data transfer rate. However, this method requires the user to focus on a screen for an extended period of time. This causes strain on the user and takes their attention away from their surroundings, which could be dangerous in a scenario that requires navigation around multiple moving objects. The focus of this project is to design a hybrid BCI controller using an electroencephalogram (EEG) headset to detect hand motor imagery (MI) and jaw electromyography (EMG) signals to control a smart wheelchair in conjunction with its semi-autonomous capabilities. A controller of this kind is well-known to have low data transfer rates, and therefore has lower accuracy and longer response times as compared to other controllers. However, a properly structured controller hierarchy between the BCI controller and semi-autonomous system is developed to compensate the limitations of the controller’s accuracy.

On-line survey and diagnose of sewer networks

2007 ◽  
Vol 2 (2) ◽  
Author(s):  
G. Manic ◽  
R. Bernardin ◽  
C. Salic ◽  
F. Blanchet ◽  
M. Zug
Keyword(s):  
Decision Support ◽  
Data Transfer ◽  
Time Estimation ◽  
Decision Support Tool ◽  
Work Force ◽  
Radio Waves ◽  
Support Tool ◽  
Sanitary Sewer ◽  
Optimal Maintenance ◽  
Sewer Networks

Optimal maintenance strategies of sewer networks require an important work force as well as strong experience and knowledge. To ensure both a complete survey of the network and real time estimation of the current state of the network is necessary. A project was started in order to develop a new decision support tool for sewer managers. A new sensor measuring water level was first developed combining four major characteristics: a good resistance to corrosive atmosphere, long term autonomy, reduced cost and the ability to transfer data using radio waves. Further, a deployment campaign of these sensors was undertaken involving 100 sensors coupled with the commissioning of a wireless data transfer system. Finally, a decision support tool was developed to treat the data provided by the sensors to reach three aims: detect drifts, estimate the amount of parasite water and inflow during rainy days, and report any alarms. The pilot site chosen for this program is a main sanitary sewer of the city of Toulouse (France). This article presents the complete methodology, including the development of the decision support tool, as well as the difficulties met and the first results obtained in term of rehabilitation strategies of the network.

Antenna System and Architecture-Circular Polarized UWB Antenna for Indoor Positioning Application

2016 ◽  
pp. 340-361
Author(s):  
Rupesh Kumar ◽  
Bernard Huyart ◽  
Jean-Christophe Cousin
Keyword(s):  
Indoor Environment ◽  
Indoor Positioning ◽  
Antenna System ◽  
Future Perspective ◽  
Two Dimensional ◽  
Radio Waves ◽  
Uwb Antenna ◽  
Localization System ◽  
Recent Developments ◽  
Waves Propagation

Indoor environment can be characterized as sever attenuating and depolarizing medium for electromagnetic (radio) waves propagation. These signals are radiated from transmitters to space (free-space propagation channel) and received from space to receivers through antennas. These signals are commonly radiated or received with pre-defined signal's polarization schemes and these schemes are always controlled by the antenna. In this chapter, the two-dimensional antenna designs and its polarization schemes are presented for minimizing the sever effects of an indoor environment. Emphasis is on understanding the special attention required for designing an antenna dedicated to an Indoor Positioning/Localization System. Some recent developments in antenna designs are presented as an example for the better understanding and its future perspective.

LonWorks Node Achieving Power Line Communication Based on Slave a Parallel Mode

2011 ◽  
Vol 317-319 ◽  
pp. 1304-1307 ◽  
Author(s):  
Shuai Yang ◽  
Lan Xue
Keyword(s):  
Real Time ◽  
Data Exchange ◽  
Data Transfer ◽  
Data Communication ◽  
Monitoring Network ◽  
Power Line ◽  
Band Frequency ◽  
Good Communication ◽  
Slave Processor ◽  
Parallel Mode

LonWorks technology is a complete development platform used in monitoring network system. In order to improve the real-time of LonWorks node, its master processor AT89C2051 and slave processor MC143150 will realize data exchange each other in Slave A parallel mode. Data transfer mechanism using virtual token passing can solve the issue of master and slave processor seizing the data bus. PLT-22 transceiver featuring a dual carrier and narrow band frequency can complete data communication on LonWorks power line network, the transceiver can overcome the drawbacks of noise sources, attenuation, distortion. Experiments show that LonWorks node achieving power communication based on Slave A parallel mode has good communication and high real-time performance.

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