International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 04 | Apr 2019 www.irjet.net p-ISSN: 2395-0072 © 2019, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 53 Improving patients health-care using IoT Garvit Khurana 1 1 School of Computer Science and Engineering, VIT Vellore 632014, Tamil Nadu, India ---------------------------------------------------------------------***--------------------------------------------------------------------- Abstract - The increasing development in the technologies related to Internet of things (IoT) is making possible the connection and communication of various smart devices together using the Internet and hence offering more data interoperability for application purpose. IoT has found its applications in various fields such as home automation, industries, city automation, pollution monitoring, traffic monitoring and many more. Among the never ending list of applications that are enabled by the Internet of Things (IoT), smart and automated health care is a highly important one as it can have a great impact and save and improve a lot of lives. Key Words: Automated health care system, IOT(Internet of Things),Arduino Uno, UR(Ultrasonic) sensor, IR(Infrared), Proximity sensor, LED (Light Emitting Diode). 1. INTRODUCTION This paper aims to implement Smart Healthcare System using Ultrasonic sensor and IR proximity sensor in the hospitals and the existing healthcare systems. The two sensors are used for two different purposes and hence my system performs two different functions at once. The system uses Arduino Uno for the connection of the sensors and the overall implementation of the system. The data gathered by the two sensors is sent to the server immediately which will be handled by the admin and accordingly required action can be taken by the staff. Input: The level of the IV fluid bottle which is calculated using the UR sensor which sends a sound wave and records the time taken through which the distance is calculated. Processing: By knowing the time taken by the wave to come back, the distance can be calculated using the formula Distance = Speed * Time, the speed is fixed 334~340 m/s. Output: The level of IV fluid, when to replace, will be automated instead of manually checking each patient’s bed by which the manpower is reduced and also the wages will get reduced which will be profitable for the organization. The device uses the ultrasonic sensor. It is a device which is used to measure the distance to a specific object by using the concept of sound waves. It measures the distance by emitting a sound wave at a fixed frequency and listening for the wave to bounce back after hitting the obstacle. It then records the elapsed time between the generation and the bouncing back of the sound waves and hence calculates the distance between the sensor and the object. The sensor has two openings in the front. One opening emits the ultrasonic waves like a tiny speaker and the other opening receives the waves like a microphone. It uses the following formula – (time x speed of sound)/2. Fig -1: Problems that can be solved using my IoT device. The device also uses the IR proximity sensor. An IR proximity sensor is used for the detection of the presence of close objects without any physical contact. It transmits an electromagnetic field or beam of infrared radiation and senses for the variations in the return signal. The object sensed by the sensor is called as the sensor's target. The maximum distance that can be detected by the sensor is called as nominal range. Most of these sensors are able to adjust the nominal range according to the application. They have high reliability and long lasting life due to the absence of physical contact and mechanical parts. An IR proximity sensor which is adjusted to a very short range can be used as a touch switch which is the case in this implementation. The implemented model has dual functions. The UR sensor which is used to measure the distance between object can be adjusted in the glucose drip which is given to patients in the hospitals. Most of the time patients are left unattended and there is no glucose drip left for them. Hence the UR sensor will able to measure the distance of the glucose solution from the base of the bottle and will accordingly notify the main server the position of the glucose in the drip by which proper action can be taken whenever necessary. The second function is carried out by the IR proximity sensor. The IR proximity sensor which senses the presence of an object can be used as a patient alarm system. The patient can simply put his hand over the sensor or can even