SMART BUNK BED CHILD MONITORING SYSTEM | BABY MONITORING SYSTEM(PART-01)
Bunk bed! What is bunk bed? Do you know bunk bed? Bunk bed is type of a bed. All kinds of beds you see in your daily life, among them it is a one type of a bed.
They have four poles and with the support of four poles, a bed is just a bed on its top, a bed on its top, in this way you can put as many beds as you want. This bed takes up only one bed space, you can put two or more bed in this bunk bed. The use of bunk beds is mostly in hostels, military, prisons and it is used the most in the children's bedroom. Because children need a lot of space to play, bunk bed is the most suitable for them. So today our focus will be in the children's bedroom. In a bunk bed of children's bedroom something is going to do. So that you can easily monitor the children along with using the bunk bed. Who young children are 2 years ,3 year old or under years old they are in learning mode. The children of this age are very naughty. They have the curiosity to know any things. In this age there is a lot of mischief going on in the minds of these children. Kids are jumping and jumping everywhere. If a lighter, match box or any chemical accidentally comes in the hands of children, then those kids start experimenting . Which is very dangerous for kids. Children do not sleep on time, which can cause health problems and the child urinates or spills water on the bed during sleeping. Children who are at risk of infection. If do not change the bed sheet and there are many thins that are not favor of children's health. So in this article, we can reduce some problems with the help of smart bunk bed child monitoring system or baby monitoring system and you can easily monitor from any where. For example if the kids burns any things in the children's bed room or there is a gas leak due to chemical reaction, then the gas sensor will sens the gas, smoke or fire and notify you so that you will know and you are in time. You can solve the problem before accidentally. Similarly, if the child urinates or spills water on the bed while sleeping, then you will know this in children's bed room without any intervention and you can change the bed sheet in time so that you can easily save infection your child.
If your children are in the bed then you will know whether their presence is in the bed or not etc.
COMPONENT REQUIRED
1.)Arduino uno.
2.)Mq2 gas sensor.
3.)Wet sensor.
4.)Piezo electric sensor.
5.) HC-SR04 Ultrasonic sensor.
6.)12v, 1 amp power supply adapter.
7.)Plywood for frame(Bunk bed).
8.) Some wires.
ARDUINO UNO
Mq2 GAS SENSOR
Mq2 gas sensor is a type of sensor.Which detects Smoke or Gas in the air. This is made metal oxide semiconductor (MOS) . We know as Chemiresistor .When a smoke or gas comes into contact with gas sensor . The MOS material is heated then stars causing the resistance value change according to concentration of gas or smoke. And the resistance value level of sensor is changed depend up on the type of gases presents in the atmosphere of Mq2 sensor.
There are following types of gases detect by Mq2 Gas sensor
- LPG.
- Propane.
- Methane.
- Butane.
- CO.
- Alcohol.
- Hydrogen etc.
WET SENSOR OR SOIL MOISTURE SENSOR
Soil moisture sensor or wet sensor an electronic sensor. Which is used in the irrigation system or any wet or dry detect . Soil sensor measure the volumetric water content in the soil. sensor is low cost, less power consume and easy to interface to Arduino. Sensor operate to 3.3V to 5V DC power supply.
PIEZO ELECTRIC SENSOR
A piezoelectric sensor is a device that uses the piezoelectric effect to measure changes in pressure, acceleration, temperature, strain, or force by converting them to an electrical charge. The prefix piezo- is Greek for 'press' or 'squeeze'.
HC-SRO4 ULTRASONIC SENSOR
The HC-SR04 Ultrasonic sensor distance is distance measuring sensor. This sensor uses sonar to determine distance to any object, It provide a some no-contact range detection with high accuracy. You can easy-to-use and low power consume and buy low cost ultrasonic use common in robotic. And other automation field. Ultrasonic range is detect object within 2 cm to 400 cm but sensor get better result within 10 cm to 250 cm.
There are Three sections of HC-SR04 ultrasonic sensor:-1.Transmitter 2.Receiver3.Circuit of HC-SR04
WORKING PRINCIPLE
The working principle of this project is very simple. How do parents know if their child is in the bed of the children's bedroom without enter. You can easily monitor. Bunk bed has attached three sensors hc-sro4 ultrasonic sensor,mq2 gas sensor, soil moisture or wet sensor and piezo electric sensor and buzzer. All these sensors are connected to arduino board and all sensors and arduino board operates by 5 volt dc power supply . When the children go to sleep on the bed or through the stair , the ultrasonic sensor detects the children the buzzer in the bunk bed starts ringing as soon as it is detected . So that parents can easily know that their children are inside the bed or not. Whenever children come in the bed, it detects the piezo inside the bed due to electric pressure and sends a signal to the arduino as soon as it is detected and turns on the buzzer.so this is how parents know that their on the bed. And when the child spills water in the bed or urinates suddenly while sleeping, so the wet sensor in the bed makes sensor sens and the buzzer starts ringing so that the parents know that the bed is wet And changes the bed sheet in time so that infection can be easily avoided. And when there is a gas leakage due to some reason or burning of something than the gas sensor in the bunk bed detects in the buzzer starts ringing so that the parents know easily So this kind of smart bunk bed child monitoring system works.
PIN OUT
HC-SRO4 ARDUINO UNO
VCC +5VGND GNDTRIG D2ECHO D3
 |
MQ2 ARDUINO UNO
VCC +5VGND GNDDO D4
WET SENSOR ARDUINO UNO
VCC +5VGND GNDDO D5
PIEZO ELECTRIC ARDUINO UNO
+ A0 - GND
BUZZER ARDUINO UNO+ D6GND GND
SCHEMATICS DIAGRAM
Video:-
CODE
//ultrasonic sensor
int trigPin=2;
int echoPin=3;
int duration;
int distance;
//gas sensor
int mq2 =4;
int val1;
//piezo sensor
int piezo= A0;
int val2;
//wet sensor
int wet = 5;
int val3;
// Buzzer
int buzzer=6;
void setup()
{
// put your setup code here, to run once:
Serial.begin(9600);
pinMode(trigPin, OUTPUT);
pinMode(echoPin, INPUT);
pinMode(buzzer,OUTPUT);
pinMode(mq2,INPUT);
pinMode(piezo,INPUT);
pinMode(wet,INPUT);
}
void ultrasonicsensor()
{
digitalWrite(trigPin, HIGH);
digitalWrite(trigPin, LOW);
int duration = pulseIn(echoPin, HIGH);
int distance = (duration/2) / 29.1;
Serial.print("Distance=");
Serial.println(distance);
if (distance <= 5 || distance <= 1) //when distance is greater than or equal to 200 OR less than or equal to 0,the buzzer and LED are of
{
digitalWrite(buzzer ,HIGH);
delay(100);
}
else
{
digitalWrite(buzzer, LOW);
}
}
void mq()
{
val1=digitalRead(mq2);
Serial.print("mq=");
Serial.println(val1);
if(val1==0)
{
digitalWrite(buzzer ,HIGH);
delay(100);
}
else
{
digitalWrite(buzzer, LOW);
}
}
void piezo_sensor()
{
val2=analogRead(piezo);
Serial.print("Piezo=");
Serial.println(val2);
if(val2>10)
{
digitalWrite(buzzer ,HIGH);
delay(100);
}
else
{
digitalWrite(buzzer, LOW);
}
}
void wet_sensor()
{
val3=digitalRead(wet);
Serial.print("Wet=");
Serial.println(val3);
if(val3==0)
{
digitalWrite(buzzer ,HIGH);
delay(100);
}
else
{
digitalWrite(buzzer, LOW);
}
}
void loop() {
// put your main code here, to run repeatedly:
ultrasonicsensor();
wet_sensor();
piezo_sensor();
mq();
wet_sensor();
}
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