Innovative Folding Bed Cum Chair Based on IoT-Cloud Technology
Authors: Badotra Sumit , Panda Surya Narayan , Singh Simranjeet , Kaushal Rajesh , Kumar Naveen 
Published: January 2021

Aim:

The method of utilization of IoT and other evolving techniques in medical equipment
design field is discussed in the present paper. A remotely managed interface equipped in a wheelchair
cum bed is embedded for elderly or physically challenged people. With the help of a camera embedded
in the proposed solution, a real-time remote monitoring of the patient is achieved using an android application
on the concerned person. For achieving the above mentioned purpose, the use of linear actuators
has been done. This paper further aims to explore the hidden potentials of the merger of all these
fields to benefit the end users.

Objectives:

Remote monitoring of health of the patient through a cloud-based android application. Automatic
adjustment of the wheelchair into bed and vice-versa. Automatic stool passing chamber facility
is available under the proposed model. Injuries during transportation of the patient from one chair to
another (or chair to bed) have been limited in our designed model.

Methods:

The basic mechanism of proposed wheelchair has been designed using the computer-aided
design software. The basic methodology adopted for development of prototype & subsequent “user review
analysis” is displayed. The CAD Model of the wheelchair cum stretcher was designed using the
“Solid works solid modelling techniques”. The basic structure has been designed with several modifications
when compared to the conventional wheelchair design. The computer made design was then utilized
for final fabrication of the prototype. The prototype was tested for endurance, load bearing capacity
and customer comfort during various phases of development. The feedbacks of several subjects were
recorded for future utilization in improved design & fabrication.

Results:

The proposed model is of utmost importance as the number of critical patients like accident
cases, critical pre and post-surgery cases is increasing day by day. Sometimes these patients need intime
medication during transition in ambulance while they are picked up from houses and referred to
nearby big hospitals. During transition or in hospital, critical patients can be handled efficiently by a
specialist doctor through his/her smart phone applications. It also optimizes the services of specialist
doctors as we can find the shortage of specialists in Indian hospitals. In a nutshell, this WheelChair system
can be moved anywhere due to its portability. Following are the most highlighted features:
1. Authorized relatives and Doctors can see and interact with the patient remotely at any time on his/her
smart phone.
2. Authorized relatives and Doctors can see the Vital Sign of patient like BP, ECG, and Pulse etc. at
any time through Smart Phone.
3. Doctor can instruct the caretaker to release the emergency drugs through Infusion Pump.
4. Doctor can plan the exceptions, drug infusion, alarm, etc.
5. System is portable and can easily be shifted to ambulance. All transmissions are wireless, so there is
no hassle of wires and connectivity.

Conclusion:

The presented work is limited to the design and fabrication of a new model of wheelchair,
which works as a stretcher and has locomotive capabilities. The key feature of the design is its versatility
and adaptability to various working conditions. The feedback obtained from various subjects during
the testing of wheelchair shows their confidence and a fair degree of comfort which they felt while using
the wheelchair. The easy and user-friendly use of the android application helps to monitor the
health of the patient. The smartphone camera helped to achieve this data. The analysis of the data can
be done in the cloud-based station. The linear actuator has proved to be the low cost and highly reliable
equipment to propel the wheelchair.