1. Auto Detection of hunger level metabolism using a
Smart Watch: A Design Approach
Trideep Mahanta
Electronics and Telecommunication
Girijananda Chowdhury Institute of Management and
Technology
Guwahati, India
trideepmhnt@gmail.com
Amandeep Singh
Computer Science & Engineering
University of Petroleum Energy Studies, Dehradun, India
amanbaraut@yahoo.com
Abstract— This paper sublimes a broader prospect in
renovating day to day life with much more extant and vitality
respectively. To galvanize such redemption, the main objective of
this paper is to become an effective tool in helping out people's
metabolic rates of the body and responding to it. For instance,
this paper coherently focuses on the hunger level of the body. As
soon as the hunger level reaches a threshold limit, the
electronically tuned smart watch will respond and the food is
ordered from the respective destination. Collectively, it shall help
people in the metropolitan cities to manage their day schedule
more efficiently.
Keywords— android application, GPS automation,
electroencephalogram, hunger level, smart watch
synchronization.
I. INTRODUCTION
This paper is based on the efficiency of using a smart
watch for accomplishment of people's daily needs which
endeavors the detection of hunger level in a retrospective way.
The hunger level will significantly be simulated only when it
reaches a definite threshold level. A Smart watch would
acknowledge the threshold value and shall address a message
to the nearest restaurant or cafe via GPS connected with a
Smart phone. The person wearing the smart watch shall have
the full liability to instruct the menu items served in
accordance to the day or week. Also the application installed
in the smart phone would have the provision for the customer
to pay the bills through different payment options such as
Cash on delivery, Debit/Credit card and PayPal.
II. COMPONENTS REQUIRED
A. Smart Watch
The Smart watch inhibits different sensors built inside it
which thoroughly measures the hunger level of the human
body. The watch would simultaneously detect the electrical
pulses of the prime sensory system, the brain of our body and
collectively deliver feedback to the watch. This process shall
work on the principle of [1] electroencephalogram or EEG
which would monitor the fluctuation of the electric pulses of
the brain. A pattern of recognition needs to be followed which
resembles the hunger level where a definite threshold value
shall be associated with it.
B. Smart Phone
The Smart phone has an application that is interfaced with
the smart watch respectively. As soon as the
acknowledgement is arrived from the smart watch, the phone
would trigger the application to start in the background
instantaneously. This would be further accompanied by the
searching of the person's location via GPS and thereafter it
starts possessing data of the nearest restaurant or cafe present
respectively. The person has the liability to set the menu items
with respect to the preference of having special course on
weekdays or weekends. Furthermore, the availability of
payment options such as Cash on delivery (COD), credit/debit
card, PayPal etc. would definitely help people for buying with
greater ease. Simultaneously the delivery of the package
would be guaranteed to be arrived within half an hour at
maximum.
III. HUNGER LEVEL DETECTION
These process is enabled by measuring the electrical
signals associated with the functioning of the brain. The signal
frequency used depends on the brain activity of the person.
A. Threshold value detection
The smart watch fetches the electrical spikes from the
brain activity and would calibrate in accordance to the bar
graph shown below. Categorizing the threshold limit, a person
would be feeling uncomfortable [2] as soon as the threshold

2. limit is 3. If unconditionally, it reaches to a high value of 1
then the person is very much uncomfortable and shall feel
weak and light-headed. Furthermore, whereas a person is
perfectly comfortable when the hunger bar is at 6 and so on.
Figure 1. Hunger Level Detection
B. Interfacing
Corresponding to the detection of the threshold value of
hunger scale, the smart watch now collaborate itself with the
smart phone and interfaces with it accordingly. This process
can be carried out via a Bluetooth or any other peripheral
devices respectively.
C. GPS ranging
The mobile application [3] would trigger instantaneously
at the background as soon as the hunger threshold is detected.
This GPS module would search [4] for the location of the
customer holding the watch and thereby suggest some
restaurants or cafe's around the suburb. These facilitates the
person to choose his own beneficial destination with greater
ease.
D. Browsing
People have the liability to browse through different food
items indefinitely and prior [5] to that can select the items
introspect to the weekdays or weekends.
IV. DESIGN MECHANISM
After detection of the threshold the calibration of the
sensors would restore down and till then the mobile
application built [6] would start as a background menu in the
person's smart phone. This would be in capitulated with
various features and would help the people to order the food
items within short span of time, roughly about half an hour
maximum.
A. Synchronizing hunger level
.
Figure 2(a). When hunger level is high
Figure 2(b). When hunger level is low
B. Detection
Figure 3. Hunger level bar-graph

3. C. GPS screening
Figure 4. GPS data [7]
Figure 5. Restaurant details
D. Package Delivery
Figure 6. Selection of food course
Figure 7. Payment and delivery
V. FLOW CHART OF THE PROCESS
Figure 8. Flowchart of the design

4. Acknowledgment
We are grateful to Mr. Ravi Tomar, Assistant Professor,
Computer Science Engineering Department, CIT-UPES,
Dehradun, Mr.H.G.Sastry, Assistant Professor, Mr. Animesh
Malik, Graphic Designer and Mr. Agnimitra Borah, Assistant
Professor, Electronics and Telecommunication Engineering
Department, GIMT, Guwahati for guiding and assisting us in
designing our prospective model thoroughly and skillfully
without any hindrance.
References
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