Gláucio Bezerra Brandão

Hospital automation system RFID-based: Technology embedded in smart devices (cards, tags and bracelets)

RFID is a technology being adopted in many business fields, especially in the medical field. This work has the objective to present a system for automation of a hospital clinical analysis laboratory. This system initially uses contactless smart cards to store patients data and for authentication of hospital employees in the system. The proposed system also uses RFID tags stuck to containers containing patients collected samples for the correct identification of the patient who gave away the samples. This work depicts a hospital laboratory workflow, presents the system modeling and deals with security matters related to information stored in the smart cards.

Real Time QRS Detection Based on Redundant Discrete Wavelet Transform

The electrocardiogram (ECG) analysis provide several information about the current state of the heart. The QRS complex detection is one of the fundamental issue in the electrocardiographic signal analysis. This paper presents a real time QRS complex detector based on Redundant Discrete Wavelet Transform (RDWT). The algorithm use both scales and wavelet coefficients, and the wavelet coefficient energy for detection. The algorithm was evaluated with the MIT-BIH Arrhythmia Database, achieving an detection rate of QRS complexes above 99.32 % and for the P and T waves can also be detected, based on QRS positions and wavelet coefficients.

Hospital automation RFID-based

RFID is a technology have been adopted in many business fields, especially in medical field. This work has the objective to present a system for automation of a hospital clinical analysis laboratory. This system initially uses contactless smart cards to store patientpsilas data and for authentication of hospital employees in the system. The proposed system also uses RFID tags stuck in each patientpsilas collected samples container for correct identification of the patient who gave away the samples. This work depicts a hospital laboratory workflow, presents the system modeling and deals with security matters related to information stored in the smart cards.

A performance analysis of the Ethernet nets for applications in real-time: IEEE 802.3 and 802.3 1 Q

Ethernet technology dominates the local net market of computers. However, it was not established as a technology for industrial automation, where the requirements demand determinism with a performance of real time. Many solutions have been proposed to solve the problem of the no determinism, which are based mainly on the TDMA (time division multiple access), token pass and master-slave. It is in this context that this paper carried through measures of performance on communication nets that use the standard IEEE 802.3, observing the behavior of these nets when submitted to different scenes of overload. For this, variations were adopted in the test environment, which will be based on Shared Ethernet (Hub), Switch Ethernet and Switch Ethernet with priority (IEEE 802.1Q). This way, being capable to indicate which devices analyzed among the performance tests demonstrated a more appropriate behavior to support the applications with the time requirements of real time.

AngelCare mobile system: Homecare patient monitoring using Bluetooth and GPRS.

The quick progress in technology has brought new paradigms to the computing area, bringing with them many benefits to society. The paradigm of ubiquitous computing brings innovations applying computing in peoples daily life without being noticed. For this, it has used the combination of several existing technologies like wireless communications and sensors. Several of the benefits have reached the medical area, bringing new methods of surgery, appointments and examinations. This work presents telemedicine software that adds the idea of ubiquity to the medical area, innovating the relation between doctor and patient. It also brings security and confidence to a patient being monitored in homecare.

A New Computational Tool for Voice Analysis Based on FFT, Wavelet Transform, and Spectrogram

Digital signal processing techniques have been used by acoustic analysis to evaluate the voice quality of the patient, due to the simplicity and non-invasive procedures for measurements.Copyright

REDE NEURAL ARTIFICIAL APLICADO A GERENCIAMENTO DE CHAVES COM AUTENTICAÇÃO EM SISTEMAS RFID

RFID (Radio Frequency Identification) identifies object by using the radio frequency which is a non-contact automatic identification technique. This technology has shown its powerful practical value and potential in the field of manufacturing, retailing, logistics and hospital automation. However, the main problem that impacts the application of RFID system is the key management. Recently, Kinzel and Kanter (Kinzel and Kanter, 2002) showed that two neural networks with the common input vector can finally synchronize their weights vector by output-based mutual learning. This paper presents an approach to solve the key management problems in RFID systems by designing a new key management protocol with mutual authentication. This protocol is an extension of the protocol proposed by Kinzel and Kanter, being added to the original protocol: mutual authentication and the establishment of frames. Keywords— RFID Security and Privacy, Authentication and Key Management Protocols. Resumo— Identificação por rádio freqüência, também chamado de RFID, representa uma tecnologia de identificação que utiliza ondas eletromagnéticas para a transmissão dos dados. Esta tecnologia está sendo cada vez mais utilizada nas indústrias, hospitais e loǵıstica. No entanto, o principal obstáculo para a utilização de sistemas RFID é a segurança da informação, especialmente o gerenciamento de chaves criptográficas. Recentemente, Kinzel e Kanter (Kinzel and Kanter, 2002) demonstraram que duas redes neurais podem aprender mutualmente, gerando ao final do processo de aprendizado pesos sinápticos iguais. Este artigo propõe um novo protocolo de gerenciamento de chaves com autenticação mútua. Este protocolo é uma extensão do protocolo proposto por Kinzel e Kanter, sendo adicionada ao protocolo original: a autenticação mútua e a definição de quadros. Palavras-chave— Sistemas RFID, Autenticação e Gerenciamento de Chaves.

ANÁLISE DE DESEMPENHO SOBRE REDES IEEE 802.3/PM-AH (PROTOCOLO MULTICILOS PARA AUTOMAÇÃO HOSPITALAR)

Com a incorporacao de conceitos da automacao em ambientes hospitalares surge uma serie de novos requisitos pertinentes a area medica. Dentre esses requisitos, um que merece destaque e a necessidade do estabelecimento de uma rede de comunicacao segura e eficiente entre os elementos do ambiente hospitalar, visto que, os mesmos encontram-se de maneira distribuida. Nesse sentido, existe uma serie de protocolos que podem ser utilizados no estabelecimento dessa rede, dentre os quais, um que merece destaque e o PM-AH (Protocolo Multiciclos para Automacao Hospitalar) justamente por ser voltado a automatizacao de ambientes hospitalares tanto no que diz respeito ao cumprimento dos requisitos impostos nesse tipo de ambiente, como pelo fato de ser projetado para funcionar sobre a tecnologia Ethernet, padrao esse que e comumente utilizado pela rede de dados dos hospitais. Em decorrencia disso, o presente trabalho aborda uma analise de desempenho comparativa entre redes PM-AH e puramente Ethernet visando atestar a eficiencia do primeiro no que diz respeito ao cumprimento dos requisitos impostos pela automacao hospitalar.

Mult-I/O - a middleware multi input and output for access devices: A case study applied the biomedical devices

The great diversity in the architecture of hardware devices allied to many communication protocols, has been hindering the implementation of systems that need to access these devices. Given these differences, it appears the need of providing the access of these devices in a transparent way. In this sense, the present work proposes a middleware, mult input and output for access the devices, as a way of abstracting the writing and reading data mechanisms in hardware devices, contributing this way, for increasing systems productivity, as the developers are just focused in their functional requirements.

Neural cryptography applied to key management protocol with mutual authentication in RFID systems

RFID (radio frequency identification) is an emerging technology, for automatic identification and tracking, to provide increased efficiency and decrease operating costs in industry and supply chain. However, existing international standards not include security specifications, which resulted in appearance of security threats. Many efforts have been done in this area. However, the key management protocols proposed are unsafe or impractical for most RFID systems. This paper presents a novel approach of a key management protocol with mutual authentication for RFID systems. This protocol is an extension of RFID systems for the protocol proposed by Kinzel and Kanter , adding to the original protocol: a mutual authentication and the definition of frames. Through simulations it was possible to observe that the security level of the proposed protocol is a function only of the computational resources of the entities in the RFID system.