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The project designs and constructs a system for receiving and analyzing cardiac signals that receive directly from the body by sending it to the phone via Bluetooth protocol then submit to be displayed and analyzed for identifying a number of diseases.
Context in source publication
Context 1
... Menu from the Choice Group, the user encounters with some options. The first one is Receive Record which sends a message to turned off Bluetooth and attempts to connect. This option includes two commands which are Main Menu and Connect. By pressing the Connect button, program attempts to communicate with defined address via Bluetooth module(6). Fig. 4 shows the RFCOMM protocol which is responsible for the connection(9). After receiving the dialed numbers, an Alert message indicating the end of receiving signal is screened. Thearray of application can both be stored and saved in mobile phone by selecting Display or Save commands. The end of the storing is alerted by a signal. ...
Citations
... To improve the confidentiality and the security [5,26,35] have proposed different methods to encrypt those signals before their transmission processes. Several methods have been proposed for the transmission of ECG signals, amount which include Bluetooth, GSM, Internet and various combinations of modern digital telecommunications systems [4,6,14,24,25,32,42,43,48,50]. The limitations of those methods are the number of the transmitted leads (usually one lead), the transmission distance which is very short, and the weak level of security and the degradation of the signals [44]. ...
... This method has been used successfully to transmit ECG/EEG signals by Kengnou and al in [44]. This overcomes the drawbacks faced in [4,6,14,24,25,32,42,43,48,50]. The signal can be tranfered far as possible depending on the CDMA equipement (the range of CDMA signal) and the security level will be increase because the CDMA method will transform all the leads of the signal into one multiplexed signal similar to noise. ...
For telemedicine purpose, simultaneous transmission of biomedical multichannel signals remains problematic. There is a need to transmit all the channels without creating distortions such as delay, inversion of the signal parts. Multiple access techniques are more indicated. In this paper, we proposed a multi-user direct sequence code division multiple access (DS-CDMA) based chaotic communication system to simulate the transmission of biomedical multichannel electrocardiogram (ECG) signals and electroencephalogram (EEG) signals in the same bandwidth. We used binary chaotic sequences to spread the ECG/EEG signals and the Walsh sequences as pilot signals. The performance of the proposed system is evaluated in the presence of Additive White Gaussian Noise (AWGN) channel and in the presence of the Rayleigh flat fading channel. We achieved the code acquisition that represents the first stage of the synchronization process in the presence of AWGN channel and in the presence of the Rayleigh flat fading channel. We evaluated the code acquisition stage in term of the probability of detection and probability of false alarm. We used the time delay estimated by the code acquisition to despread the received signal. The low bit error rate obtained confirms the effectiveness of the synchronization unit, the effectiveness and the robustness of the proposed system.
p align="justify">El electrocardiograma permite visualizar la actividad eléctrica del corazón por medio de electrodos de superficie, los cuales captan las diferencias de potencial que ocurren en cada uno de los latidos. Es una de las herramientas más utilizada en la detección y el diagnostico de enfermedades cardiovasculares, que hoy la tecnología permite hacerlo en forma digital, ahorrando tiempo y costo. El presente trabajo trata sobre el diseño y la implementación de un sistema de adquisición de señales cardiacas, empleando un dispositivo que registra el ECG , mediante un proceso de amplificación y filtrado y posteriormente lo envía a una PC mediante tecnología bluetooth, para visualizarla y almacenarla. Dado el bajo costo de los elementos y la confiabilidad del equipo se consiguen un instrumento capaz de suplir algunas de las prestaciones de un electrocardiógrafo profesional.</p
Telemedicine is becoming increasingly, with applications in many areas of healthcare, such as home telecare of the elderly, diagnosis at a distance and robotic surgery. The simultaneous transmission of several leads of biomedical signals should be considered in telemedicine, given the many benefits it brings. Code division multiple access (CDMA) is a multiple access technique that enables users to transmit independent information simultaneously within the same bandwidth. The direct sequence CDMA (DS-CDMA) is a variant of the CDMA technique in which a pseudorandom sequence having a higher bandwidth than the information signal is used to modulate the information signal directly. Biomedical signals are confidential; thus, their transmission must be secured. In this paper we propose a protocol similar to DS-CDMA for the simultaneous transmission of all of the leads of some multichannel biomedical signals. We assigned orthogonal codes to different leads of a signal. The convolution of each lead with the code gives a signal spread over a broad frequency band. All of the spread signals are then mixed to produce a single composite signal. This composite signal is frequency modulated, amplified and transmitted. At the reception, inverse functions to the previous are developed to perform demodulation, demultiplexing and extraction of the physiological signals transmitted. We used the discrete Walsh functions as codes. The results obtained are satisfactory, even in situations where the noise disturbances are significant.
Cardiovascular disease is the main cause of human casualty in the world as reported by World Health Organization (WHO). To facilitate in minimizing this cause, constant monitoring of the heart's rhythm appears to be essential in observing the condition of the heart by checking or recording the Electrocardiogram (ECG) signal. This paper presents a prototype design of Single Wireless Electrocardiogram Monitoring and Acquisition System (SIWEMS). The system is designed to implement Zigbee wireless technology for monitoring and storing an ECG signal remotely from a patient. The conceptual design of the system is discussed along with the circuits devised to generate a good-quality signal. Microcontrollers are employed to form a controller board for digitizing the signal and stored the signal in SD-card. Plus, the board is also interfaced with wireless module to transmit the signal to a Graphical User Interface (GUI) window. The GUI installed in laptop received the signal and concurrently displays it in real-time. Instead, the window does also provide data logger function. The proposed system is tested, and the results demonstrate it performs well to generate, displays and logs the ECG signal. Currently, this prototype is practically relevant to be employed for remote continuous dynamic monitoring and acquisition of ECG in healthcare.
Heart affections are currently the main type of illness affecting the elderly, and pose unique difficulties both in diagnostic and in treatment effects tracking and long term evolution monitoring. The already stretched out medical system cannot handle the requirements of long term monitoring of patients with severe heart conditions, and thus, automated long term monitoring solutions are required. The present work displays a practical analysis of the hardware and software solutions available for ambulatory ECG (electrocardiogram) monitoring, by proposing a replicable ECG sensor architecture - HeartFelt. The proposal is detailed and validated by means of a complete hardware and software implementation, confirmed by tests performed in cooperation with medical staff. The exposed architecture offers the possibility of long term monitoring of an ECG signal from a patient in ambulatory environment, and offers a balance between precision, ergonomics, autonomy and productions costs.
This paper presents a novel design scheme of a portable 12 lead ECG signal acquisition system. The proposed system mainly consists of three parts: An ECG signal acquisition module based on ADS1298, a control module based on MSP430, and an Android medical software runs on smart phone. The collected ECG data is sent from the control unit to user's mobile phone via Bluetooth for further processing, storing, and displaying. The three parts are integrated together to achieve a small size, wireless and portable ECG acquisition system.
