Low-cost prototype design of a portable ECG signal recorder

2016 ◽  
Author(s):  
Shin-Chi Lai ◽  
Te-Hsuan Hung ◽  
Wen-Chih Li ◽  
Yu-Syuan Jhang ◽  
Kuan-Ying Chang ◽  
...  
Keyword(s):  
Low Cost ◽  
Ecg Signal ◽  
Signal Recorder ◽  
Prototype Design

Efficient and Robust Approach for Heartbeat Detection of ECG Signal

2019 ◽  
Vol 29 (08) ◽  
pp. 2050133
Author(s):  
Anas Fouad Ahmed ◽  
Mohammed Abdulmunem Ahmed ◽  
Hussain Mustafa Bierk
Keyword(s):  
Real Time ◽  
Low Cost ◽  
Suggested Method ◽  
The Other ◽  
Ecg Signal ◽  
Excellent Performance ◽  
Robust Approach ◽  
Different Types ◽  
Three Stages ◽  
Electrocardiogram Ecg

This paper introduces an efficient and robust method for heartbeat detection based on the calculated angles between the successive samples of electrocardiogram (ECG) signal. The proposed approach involves three stages: filtering, computing the angles of the signal and thresholding. The suggested method is applied to two different types of ECG databases (QTDB and MIT-BIH). The results were compared with the other algorithms suggested in previous works. The proposed approach outperformed the other algorithms, in spite of its simplicity and their fast calculations. These features make it applicable in real-time ECG diagnostics systems. The suggested method was implemented in real-time using a low cost ECG acquisition system and it shows excellent performance.

scholarly journals Development of Low-Cost ECG System for Comprehensive Monitoring Heart Function

2021 ◽  
Author(s):  
prihatin oktivasari ◽  
Ishartati Ishartati ◽  
Riandini Riandini ◽  
Amy Hamidah Salman ◽  
Freddy Haryanto ◽  
...  
Keyword(s):  
Heart Function ◽  
Low Cost ◽  
Integrated System ◽  
Ecg Signal ◽  
Analog To Digital ◽  
Rr Interval ◽  
Time Operation ◽  
The Status ◽  
Real Time Operation ◽  
Research And Education

Abstract A simple system, a low-cost, fully automated, and design for monitoring RR interval Electrocardiography (ECG) signal described in this paper. The platform, named Simple Low-Cost Electrocardiography System (SLES), is capable of monitoring RR interval and R peaks in 3 lead standards. The system is in .exe format, so it can be easily installed on a computer. The system's goal is to design a fully integrated system for measuring a characteristic of Heart Rate Variability (HRV) parameters for various applications in heart signal research and education. The ECG signal is analog filtered and amplified and processed from analog to digital. Eventually, the ECG signal will be shown on the monitor after digital filtering. The data obtained from the ECG will accurately reflect the status of human heart health. The system has the benefits of small volume, low power consumption, low cost, and real-time operation. All design and development reports, files, and system software will be given non-commercial use online on https://github.com/oktivasari.

scholarly journals Solar Ray Tracing Analysis to Determine Energy Availability in a CPC Designed for Use as a Residential Water Heater

2017 ◽  
Author(s):  
Miguel Terrón-Hernández ◽  
Manuel I. Peña-Cruz ◽  
J. G. Carrillo ◽  
Ulises Diego-Ayala ◽  
Vicente Flores
Keyword(s):  
Ray Tracing ◽  
Tracking System ◽  
Low Cost ◽  
Energy Availability ◽  
Water Heater ◽  
Available Energy ◽  
And Performance ◽  
Efficient Option ◽  
Prototype Design ◽  
Residential Water

Compound parabolic concentrators are relevant systems used in solar thermal technology. With adequate tailoring, they can be used as an efficient and low-cost alternative in residential water applications. This work presents a simulation study using a ray tracing methodology. With this technique we simulate the interaction between solar rays and solar concentrator to quantify the amount of energy that impinges on the receiver at a particular time. Energy availability is evaluated in a comparison of two configurations: stationary at 21° throughout the year and multi position setup; tilted with respect to the horizontal depending on three seasonal positions: 0° for summer, 16° for spring / autumn and 32° for winter, with the objective of increasing the amount of available energy in each season. The fact that a tracking system can be dispensed with also represents an economical option for the proposed application. The results showed that at 21°, the proposed system works satisfactorily; however, by carrying out the selected angular adjustments, the overall energy availability increased by 22%, resulting in a more efficient option. The methodology developed herein proved to be a valuable tool for prototype design and performance evaluation.

Low-Cost Braille Printer Prototype Design With OCR Technology

2019 ◽  
Author(s):  
Israel Duran Encinas ◽  
J. Andres Sandoval Bringas ◽  
A. Ivan De Casso Verdugo ◽  
Carlos Sandoval Bringas ◽  
Jonathan Giovanni Soto Munoz
Keyword(s):  
Low Cost ◽  
Prototype Design

Design of ECG Signal Acquisition and Processing Circult

2012 ◽  
Vol 236-237 ◽  
pp. 856-861 ◽  
Author(s):  
Jing Ma ◽  
Jun Xu ◽  
Hai Bo Xu ◽  
Yu Wang ◽  
Sheng Xu Yin
Keyword(s):  
Signal To Noise Ratio ◽  
Low Cost ◽  
Low Frequency ◽  
Low Noise ◽  
Cardiac Conduction ◽  
Signal Acquisition ◽  
Ecg Signal ◽  
Physiological Signal ◽  
Heart Study ◽  
Low Pass

ECG signal is, as a vital method performed on the heart study and clinical diagnosis of cardiovascular diseases, an important human physiological signal, containing the human cardiac conduction system of physiological and pathological information. Aiming at the weak low frequency characteristic of ECG signals, the core circuit based on the AD620 and LM324 amplifier is given. After analyzing the major components of the ECG signal and the frequency range of interference, weak ECG signal collected by the electrodes is amplified by the preamplifier circuit, and the interference then is wiped out by using a low-pass filer, a high-pass filer, 50Hz notch filer and back amplifier circuit, finally a right wave of ECG is received. The characteristics of the system features the merits of high input impedance, high CMRR, low noise, less excursion and high SNR(signal to noise ratio), low cost and so on.

scholarly journals Mobile Messaging Services-Based Personal Electrocardiogram Monitoring System

2009 ◽  
Vol 2009 ◽  
pp. 1-7 ◽  
Author(s):  
Ashraf A. Tahat
Keyword(s):  
Mobile Phone ◽  
Monitoring System ◽  
Low Cost ◽  
Vital Signs ◽  
Smart Phone ◽  
Ecg Signal ◽  
Area Network ◽  
Application Software ◽  
Data Services ◽  
Electrocardiogram Monitoring

A mobile monitoring system utilizing Bluetooth and mobile messaging services (MMS/SMSs) with low-cost hardware equipment is proposed. A proof of concept prototype has been developed and implemented to enable transmission of an Electrocardiogram (ECG) signal and body temperature of a patient, which can be expanded to include other vital signs. Communication between a mobile smart-phone and the ECG and temperature acquisition apparatus is implemented using the popular personal area network standard specification Bluetooth. When utilizing MMS for transmission, the mobile phone plots the received ECG signal and displays the temperature using special application software running on the client mobile phone itself, where the plot can be captured and saved as an image before transmission. Alternatively, SMS can be selected as a transmission means, where in this scenario, dedicated application software is required at the receiving device. The experimental setup can be operated for monitoring from anywhere in the globe covered by a cellular network that offers data services.

SECURE, LOW-COST PROTOTYPE DESIGN OF UNDERWATER ACOUSTIC SENSOR NETWORKS

2008 ◽  
Vol 17 (06) ◽  
pp. 1203-1208 ◽  
Author(s):  
FEI HU ◽  
PAUL TILGHMAN ◽  
STEVEN MOKEY ◽  
JAMES BYRON ◽  
ANDREW SACKETT
Keyword(s):  
Sensor Networks ◽  
Low Cost ◽  
Sensor Nodes ◽  
Wireless Sensor ◽  
Acoustic Sensor ◽  
Underwater Acoustic Sensor Networks ◽  
Underwater Wireless Sensor Networks ◽  
Underwater Environment ◽  
Acoustic Sensor Networks ◽  
Prototype Design

Underwater Wireless Sensor Networks are essentially different from terrestrial RF-based sensor networks due to its highly variable and long acoustic delay. This paper describes our hardware/software co-design of low-cost underwater sensor nodes for deployment in a shallow underwater environment. Each sensor is comprised of a DSP board responsible for modulation/demodulation and sensor readings, as well as an analog board responsible for signal strength amplification and signal conditioning.

scholarly journals Development of A Low-Cost Arduino-Based 12-Lead Ecg Acquisition System And Accompanied Labview Application

2019 ◽  
Vol 9 (1) ◽  
pp. 1641-1648
Keyword(s):  
Signal Processing ◽  
Real Time ◽  
Low Cost ◽  
Numerical Data ◽  
Digital Signal ◽  
Acquisition System ◽  
Signal Acquisition ◽  
Frequency Noise ◽  
Ecg Signal ◽  
Active Analog

In this paper, the design of a real-time digital multi--channel ECG signal acquisition system is presented. With the purpose of fabrication towards a simple, compact and low-cost tool for bioelectrical signal processing laboratories, the system is developed to acquire the 12 leads EGC signals and converted to numerical data based on an Arduino module named as Leonardo equipped 12 channels ADC. To observe the EGC waves, the ECG signals are amplified through designed amplifiers with the gain of 60 dB. To reduce the effects from the DC component as well as the baseline wandering and the high frequency noise, the active analog bandpass filter ranged in 0,05 Hz to 100 Hz was designed. The power line noise of 50 Hz also decreased with an active analog bandstop filter with attenuation -38 dB. Under the PC application was built using Labview programing, the low-cost digital ECG signal acquisition system was demonstrated with the requirement of observation in real-time. To clarify the small wave in the digital EGG signal, the limitation of the analog signal processing is improved through the digital filters parameterized in the software to increase the SNR from 1.4 dB to 27.6 dB. Practically, the system is evaluated through a series of experiments on a volunteer person resulting the ECG data is recorded and stored in a TDMS file. Since the system is designed as opened-system, a series of developments towards various applications in biomedical diagnosis based on digital signal analysis techniques is promised to be feasible in the near future.

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