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\title{Silent Guardian~:~NodeMCU Revolutionizes Ambulance Transponding System}



\author[1]{Manish Singh}%
\affil[1]{Affiliation not available}%


\vspace{-1em}



  
  \date{April 30, 2026}


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\selectlanguage{english}
\begin{abstract}
This is the project that criticize about the need of Ambulance. We all
used ambulance whenever we are facing emergency health issue to get
medical support in quick time. Despite the ambulance siren actively
making emergency sound so that the cars would give way, the ambulance
gets stuck. This is because people in the car are unaware of the
ambulance siren due to closed windows or because they hear the siren sol
late that there is no space to move the car. Another factor is that
siren sound makes the patient and others more anxious contributing to
increasing noise pollution. To solve this issue, we introduce a new
ambulance system without siren sound. In this system all the ambulances
will attach a transmitter and all the private and commercial vehicles
will attach a receiver so that they can catch the signal transmitted by
the ambulance. Our target is to initiate contact i.e., to send signal to
a minimum range of 100~meter . This will help us to get quick response
from a farther distance to move the cars away for the ambulance, also
reducing sound pollution.%
\end{abstract}%



\sloppy


\emph{} \emph{} \textbf{I.~INTRODUCTION}

We all know that the main problem faced in our society when driving is
lack of knowledge about road traffic safety. This leads to an increase
in road accidents all over the globe. There are multiple projects which
aim to enhance the response time of emergency system like smart
ambulance system {[}1{]}, automatic traffic control {[}2{]}, etc.
However India is also one of the countries having poor traffic system
and we Indians also naturally possess rude nature or lack of ethics.
Because of all these reasons we have to face ~delay in emergency
services.{}

To avoid the ambulance from getting stuck in traffic jam, we prepared
this project. In this project an ambulance can give signal without the
use of siren, we are using a transmitter which will be embedded to the
ambulance, and a receiver to be embedded in the cars , to receive the
transmitted ambulance signal. ~The main aim of this project is to
effectively transmit signals from ambulances to other vehicles. As the
process is performed with soundless system the patient inside the
ambulance also relaxes, reducing anxiety/panic level. This work is not
only for emergency service it also targeted to reduce noise pollution,
not to disturb the environment and to reduce panic during emergency
situations. {}

\textbf{II.~RELATED WORK}

We are living in the world of advanced technologies which has made
things easy for us, but it comes with its own disadvantages. One of them
being health related problems. As a preventive measure we have invented
many advanced technologies in hospitals. There are many inventions like
automatic traffic signal where traffic signal and ambulance were
communicated with cloud-based GPS system {[}2{]}, smart ambulance system
using smartphone app based on cloud {[}3{]}. In this system the track of
the ambulance is triggered to nearby vehicle with the help of smartphone
app. In order to control the traffic congestion a novel technique
utilizing IR sensor technology is also put forth to address the crucial
problems of traffic signal time consumption and vehicle congestion
{[}4{]}.Employing transmitters and receivers to alert drivers of other
vehicles about emergencies {[}5{]}. An IOT based traffic and road safety
using transmitter, this project is actually based on road safety
technique where the situation are collected automatically and notified
to nearby vehicles {[}6{]}. More lives will likely be saved by smart
ambulances, which are predicted to transform the emergency medical
system. But they also have to deal with issues like cost and data
security.{}

\textbf{III.~WORKING}{}

The transmitter, receiver, buzzer, and NodeMCU~serve as the main
foundation for this purposed work .\selectlanguage{english}
\begin{figure}[H]
\begin{center}
\includegraphics[width=0.45\columnwidth]{figures/Capture/Capture}
\caption{{Components Actual :~ Sensors used for the work ~
{\label{396873}}%
}}
\end{center}
\end{figure}

{}All ambulances will have the transmitter attached, and any private or
commercial vehicles will have the receiver attached. So that when an
ambulance approaches, all the vehicles within a range of 100m will
receive a signal from the ambulance which will be received by the
commercial vehicles via their receiver. When signal is received by the
receiver the buzzer will work as the notifier. This project aimed to
transmit the signal at least 100m.\selectlanguage{english}
\begin{figure}[H]
\begin{center}
\includegraphics[width=0.34\columnwidth]{figures/Capture1/Capture1}
\caption{{Working Principle
{\label{414587}}%
}}
\end{center}
\end{figure}

This is the working flows of the project. The main target of this
project is to reduce noise and the cost effective i.e. one can readily
assign to this practice.{}

\textbf{IV.~CONCLUSION}{}

All the existing system are mainly based on traffic light control and
they are almost based on cloud computing. But it is not easy to apply
cloud computing systems in all the vehicles and it is costly. Another
problem is that it will take more time to adapt to this system. Our
project is pocket friendly and can be applied easily with our existing
economic system and technology. Thus, we can resolve the problem of
people ignoring the signal, because there is no accuse as the
buzzer/indicator attached personally in respective vehicles. And it will
also help to keep the patient and environment calm as it will be a
soundless system.{}

\textbf{V.~FUTURE WORK}{}

The future scope of this project is :{}

a)~To transmit the signal with larger coverage area.{}

b)~To pass the signal to the nearby hospital also to get ready and to
give quick response.\textbf{}

\textbf{}

\subsection*{\hyperref[csl:1]{(Dhatrak \& Gandhe, 2018)}~\hyperref[csl:2]{(Sharmila et al., 2022)}~\hyperref[csl:3]{(Singh et al., 2015)}~\hyperref[csl:4]{(Mahalakshmi et al., 2022)}~\hyperref[csl:5]{(Gupta et al., 2015)}~\hyperref[csl:6]{(Deshmukh \& Vanjale, 2018)}~\hyperref[csl:7]{(KOBAYASHI et al., 2019)}}

{\label{483283}}

\subsection*{\hyperref[csl:1]{(Dhatrak \& Gandhe, 2018)}~\hyperref[csl:2]{(Sharmila et al., 2022)}~\hyperref[csl:3]{(Singh et al., 2015)}~\hyperref[csl:4]{(Mahalakshmi et al., 2022)}~\hyperref[csl:5]{(Gupta et al., 2015)}~\hyperref[csl:6]{(Deshmukh \& Vanjale, 2018)}~\hyperref[csl:7]{(KOBAYASHI et al., 2019)}}

{\label{483283}}

\selectlanguage{english}
\FloatBarrier
\section*{References}\sloppy
\phantomsection
\label{csl:1}{Automatic Traffic Signals in Smart Cities for Speedy Clearance of Emergency Vehicles}. (2018, August). \textit{2018 Fourth International Conference on Computing Communication Control and Automation (ICCUBEA)}. \url{https://doi.org/10.1109/iccubea.2018.8697720}

\phantomsection
\label{csl:2}{An IoT based Intelligent Transport and Road Safety System}. (2022, February). \textit{2022 International Conference on Innovative Trends in Information Technology (ICITIIT)}. \url{https://doi.org/10.1109/icitiit54346.2022.9744248}

\phantomsection
\label{csl:3}{Ambulance siren noise reduction using psychoacoustic active noise control system with A-weighting filter}. (2015, May). \textit{International Conference on Computing, Communication \ Automation}. \url{https://doi.org/10.1109/ccaa.2015.7148519}

\phantomsection
\label{csl:4}{Adaptive ambulance monitoring system using IOT}. (2022). \textit{Measurement: Sensors}, \textit{24}. \url{https://doi.org/10.1016/j.measen.2022.100555}

\phantomsection
\label{csl:5}{Ambulance siren noise reduction using noise power scheduling based online secondary path modeling for ANC System}. (2015, September). \textit{2015 International Conference on Signal Processing, Computing and Control (ISPCC)}. \url{https://doi.org/10.1109/ispcc.2015.7374999}

\phantomsection
\label{csl:6}{IOT Based Traffic Signal Control for Reducing Time Delay of an Emergency Vehicle Using GPS}. (2018, August). \textit{2018 Fourth International Conference on Computing Communication Control and Automation (ICCUBEA)}. \url{https://doi.org/10.1109/iccubea.2018.8697555}

\phantomsection
\label{csl:7}{Smart Ambulance Approach Alarm System Using Smartphone}. (2019, January). \textit{2019 IEEE International Conference on Consumer Electronics (ICCE)}. \url{https://doi.org/10.1109/icce.2019.8661960}

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