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... it also performs as a power source for both of the sensors and the laser diodes as well. Figure 2 demonstrates the schematic diagram of the hard- ware prototype used in this work. The ultrasonic sensor used in this work is incorporated with 4 basic pins, which are labeled as VCC, Trigger, Echo and Ground. ...
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The article discusses the issue of hydrostatic leveling. Its application is presented in structural health monitoring systems in order to determine vertical displacements of controlled points. Moreover, the article includes a complete computation scheme that utilizes the estimation from observation differences, allowing the elimination of the influ...
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... The MAX30100 is a kind of sensor where pulse-oximetery as well as heart rate monitoring sensor is embedded to it. This module consists of two LEDs, optics which is well optimized, an analog signal processing unit(low noise) in order to detect the heart rate and SpO2 signals [14] [15]. The operating voltage of this sensor is 1.8V to 5V. ...
... Therefore, miscalculation due to physical error which causes a mismatch of the readings can be avoided. Due to the cost-efficient nature of the electronics used and the simplicity of the microcontroller code, this system can be reproduced/recreated by anyone with ease [15]. ...
Ever since the COVID-19 pandemic, the necessity of new,innovative medical devices to analyse and monitor the situation has become profound. With this in mind, we have developed an IOT based portable and cost-efficient heart rate and SpO2/level sensor device with efficient performance. The proposed system is equipped with an onboard OLED with simple internet connectivity, which publishes data on the OLED and to a HTML webpage. The salient features include its portability, user compatibility and is unique in its way of transmitting collected data online, making it achieve better results than the current available solutions in various ways. The system has on board a MAX30100 sensor(Pulse Oximeter sensor) and along with the IOT based microcontroller(WeMos D1 mini) enables the facility to monitor the real time health data of patients in real-time through a HTML page.
... HC-SR04 can produce garbage values due to several issues: sending and receiving signals, transmission delay, and fluctuation of reflection surface [18]. Moreover, these garbage values can directly affect the outcomes. ...
Height measurement considered as an important parameter for health monitoring. The increasing demand for telemedicine services requires a robust and affordable height measurement system. In addition, the system should have the ability to interact with a remote destination. Unfortunately, existing height measurement tools are incompatible with telemedicine services. In this paper, a low-cost autonomous height measurement system has been proposed. Moreover, the system utilizes an ultrasonic sensor to measure the human height and processes the sensor's data through a Micro Controller Unit (MCU). Finally, the MCU communicates with the remote terminal through a Bluetooth module. A special wearable prototype has been developed to deploy the hardware for real-life applications. The experiment results demonstrate that the results obtained by the proposed system are reliable with a mean error rate of 0.02%.
