# Introduction oT (Internet of Things) is a process of process that means all the electronic devices are connected with each other in a local area, forming a system. Further this system will connect to build up a bigger system. IoT is a concept or technology which aims to connect all the devices to the internet and help them communicate with each other using the internet as a medium. If we can connect any device to the internet it can be considered as an element for IoT. Some application areas of the Internet of Things are Home Automation, Healthcare, Agriculture, Transportation, Manufacturing, and Environment [1]. Before being on the era of IoT, a patient had to communicate with his doctor through visits, telephone, and text interactions. The doctors or hospitals could not monitor patient's health continuously and give advice accordingly, as there was no way to direct interactions all the time. But IoT has solved this problem by making remote monitoring possible in the healthcare field. It has the potential to keep the patient safe and healthy. It has also increased patient's engagement and satisfaction. As the interactions with the doctor has become more efficient, and trouble-free than earlier days. IoT is making a revolutionary transformation in the healthcare sector The rest of the paper is arranged as follows: in Sec II, we have discussed the architecture, technologies of IoT based Healthcare system and in sec III, we have talked about the benefits and challenges of IoT in Healthcare sector. In sec IV, we have gone through those above with the comparison table as a difference and with sec V, we have concluded the paper. # II. # Technologies used in Healthcare IoT has a four-step architecture in Healthcare. All the stages are interconnected with each other: Step 1(Devices): In the first step there will be devices (interconnected) which include sensors, monitors, camera systems etc. that will collect the data. Step 2(Data Aggregation and Pre-processing): In the second step there will be analog data from the interconnected devices which need to be in total and translated into the digital form. Step 3(Data Storage): If the data is in total and digital form, it will be moved to the data center or cloud. Step 4(Data Analysis): Final data is examined with the records and further decisions are made [6]. # Iot Benefits And Challenges In Healthcare By using IoT in the field of healthcare, we will be so much benefited that we can not describe in some words. But we can make an eye on some outstanding benefits of IoT in Healthcare. IV. # Related Works IoT is an element of the future internet. By reading some correspondent papers, we have got some ideas on IoT in the Healthcare sector. IoT applications in Healthcare can be in a single condition or clustered condition. Single condition applications such as Glucose Level Sensing, Electrocardiogram Monitoring, Blood Pressure Monitoring, Oxygen Saturation Monitoring, Body Temperature Monitoring. And clustered condition applications such as: Rehabilitation System, Medication Management, Wheelchair Management, Imminent Healthcare, Smartphone Healthcare Solutions [3]. V. # Conclusion The rising technology Internet of Things is changing the lives by connecting limitless devices. In the near future IoT has a remarkable effect. There will be a net of IoT connecting worldwide devices. It will bring the nations closer. It will help to connect people and get information anytime and anywhere in the world. Health is one of the most important things for the human beings. Table 1 1![Fig. 1: Four-step architecture There is a wide range of technologies in the field of healthcare in IoT. Advanced solutions have a deep strong effect on the fast growth of IoT. IoT healthcare solutions are supported by industrial science. Some technologies that can increase the IoT based healthcare services: Ultra-Low Power Sensing, IoT Processors, Cloud Computing, Grid Computing, Big Data, Communication Networks, and Wearable [2]. III.](image-2.png "Fig. 1 :") We should monitor the health of the patients at all times. This paper puts the light on a survey of the healthcare applications regarding IoT. We are exploring IoT applications and here we also are working for additional insights. We also, studying the problems of many healthcare discussions. * Latest Topics in Computer Science for Project and Thesis M 2019 Chandigarh Tech/Ph.D Thesis Help in Chandigarh-Thesis Guidance * Jð??"ð??"e ? 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