This document describes the design of an automatic doorlock control system for railways in Indonesia using ultrasonic sensors. It aims to create a prototype using an Arduino board, servo motors, ultrasonic sensors and other components to automatically stop trains and lock the doors at railroad crossings for safety. The system is tested using two prototype methods - the first uses lights and sounds to indicate a train's presence, while the second adds an LCD display to show messages. Testing of the prototypes was concluded to provide a reference for fully automating railroad crossings to reduce accidents from human errors.

1. DESIGN OF AUTOMATIC
DOORLOCK CONTROL SYSTEM
RAILWAYS USE ULTRASONIC
SENSORS
Pilmapres 2023

2. Abstract
1
Introduction
2
Research Methods
3
Results and Discussion
4
Conclusion and Closing
5
discussion agenda

3. The Indonesian rail system has experienced significant technological
advances, integrated with technology 4.0 which allows all
transaction processes and train monitoring to be carried out
electronically. Adequate infrastructure is needed, especially at the
railroad crossing which is important in regulating travel safety.
To overcome this, a prototype of an automatic railway doorstop was
created using Arduino UNO R3, servo motors, HC-SR04 ultrasonic
sensors, and other components. It is hoped that this automatic rail
doorstop system can reduce the number of accidents caused by the
negligence of the train gatekeepers and become a solution to reduce
the risk of train accidents in Indonesia.
Abstract
Abstract

4. Trains are a popular mode of land transportation
around the world. The speed of the train can reach
100 km/hour and the fee is in accordance with the
economic conditions of the community. However,
this speed can also be dangerous for safety if the
train door latch is still manual and human error
occurs.
Introduction
Introduction

5. Introduction
Introduction
To overcome this, microcontroller technology
such as Arduino UNO R3, SG90 servo motor,
HC-SR04 ultrasonic sensor, LED light,
buzzer, and LCD screen are used to create a
safe and efficient automatic railroad doorstop
prototype.

6. RESEARCH METHODS
The research method used is a qualitative method to design the flow of making automatic
railroad crossings.
A. Qualitative Method
Flowchat
When there is an object (train) at a distance of <= 10 cm, 2 HC-SR 04 ultrasonic sensors will respond
by giving a signal to all components that have been installed.
After that, if the signal is received by all components, all components will respond according to
their respective functions, such as: The Servo Motor will move down 180 degrees, the Buzzer will
sound, the LED light will turn red and the LCD screen will display the message "There is a Train
Stopped". !!!”
Then if there is no object (train) at a distance of <= 10 cm, the HC-SR 04 ultrasonic sensor will not
give any signal, thus indicating the absence of a train.
When there is no train, all components will be in their initial configuration positions such as; the
LED indicator light will remain green, the servo motor remains in a position above 70 degrees, the
buzzer does not sound and the LCD screen displays the message "Be careful when driving"
1.
2.
3.
4.

7. RESEARCH METHODS
https://drive.google.com/file/d/1fMbetjwksgp
v5P8hwnQKy-d64xqAxkqG/view?usp=sharing

8. ANALYTICAL METHOD
The use of software that is used to run this automatic
train doorstop prototype is Arduino IDE Software, Draw Io
and Microsoft Excel.
a) The Arduino IDE functions to enter, change each
program that will be configured later.
b) Draw Io functions to create diagrams and Use Cases
c) Microsoft Excel functions to load numeric data in
tabular form which will be processed later.
SOFTWARE ANALYSIS

9. is a device that consists of 20 input
pins and is equipped with an
ATmega 328 chipset with 32 kb of
storage
ARDUINO UNO R3
MIKROKONTROLER
The sg 90 servo motor is a tool that
is used to display a response in the
form of movement with a voltage
of 4.8 – 6 Vdc
SERVO SG 90
MOTION OUTPUT
This led light serves as an
indication in the form of light
LAMPU LED
VIEWER IN THE FORM OF LIGHT
LCD 16X2 And there are 2 types of i2c
modules namely 0x27 and 0x3f. there
are 4 pins on i2c namely +,-,sda and scl
LCD 16X2 DAN MODUL I2C
WRITING VIEWER
It is a distance reading sensor and
functions as input to read the selected
distance
ULTRASONIC SENSORS
HCSR 04
ANALYTICAL METHOD
HARDWARE ANALYSIS
active buzzer serves as an indicator in
the form of a sound, the buzzer has a
voltage of 3 - 12V
BUZZER
SOUND OUTPUT

10. Making this type one prototype
focuses on creating a concept
which uses sound and light as an
indication of the presence of
objects (trains).
www.reallygreatsite.com
PROTOTYPING METHOD
PROTOTYPE METHOD 1

11. design scheme
Implementation of the installation path
of each component
schema flow
The difference between prototypes 1 and 2 is
that there is an LCD to display messages
PROTOTYPING METHOD
PROTOTYPE METHOD 2

12. CONCLUSION AND
CONCLUSION AND
CLOSING
CLOSING
Testing and making prototypes for automatic
railroad crossings resulted in the conclusion
that making an automatic system for railroad
crossings could be a reference for the actual
automation process.
The use of automatic train doorstops is
expected to reduce the number of accidents
and become an alternative for the digitalization
process and technology development in the
world of railways.

13. THANK YOU