The main aim of the project is to design a safety helmet for coal miners. The system is a cost effective IOT based coal mine supervising system. This project is a realized real-time surveillance with early-warning intelligence on temperature; leakage of gas in mining area, LDR sensor based light intensity detection. This system consists of IOT technology for alerting the control station using Wi-Fi module. The system is used to reduce potential safety problems in coal production. The status of the project will display on LCD. The system is used to reduce potential safety problems in coal production.   Wi-Fi (Short for Wireless Fidelity) is a wireless technology that use radio frequency to transmit data through the air. Wi-Fi has initial speeds of 1mbps to 2mbps. Wi-Fi transmits data in the frequency band of 2.4 GHz. It implements the concept of frequency division multiplexing technology. Range of Wi-Fi technology is 40-300 feet.   This system has gas sensor, smoke sensor, DHT11(humidity& temperature) sensor, LDR sensor interfaced to the microcontroller and the sensors information is transmitted to the control station using the Wi-Fi module. If the smoke sensor detects the smoke or gas sensor detect the gas, microcontroller will activate the buzzer for alerts and also displays on LCD to the user. The LDR sensor detects the light intensity and automatically controls the light using transistor switch. This sensors output is given to the Microcontroller for further processing to send the monitored parameter value to the control station using Wi-Fi module and also alert the person in abnormal condition. To achieve this task microcontroller loaded program written in Embedded C language.

 

Main features of this project:

1. Design a safety helmet to reduce potential safety problems in coal production.
2. Automatic head light control based on light intensity.
3. Automatic temperature, humidity, gas and smoke detection and alerting system.
4. Alert in abnormal condition using Buzzer.
5. Implementation of wireless communication for continuous monitoring.
6. Implementation of Real time embedded system, which involves hardware and software interaction.

The major building blocks of this project are:

1. Rechargeable battery.
2. Gas sensor.
3. Smoke sensor.
4. DHT11(Temperature and Humidity) sensor.
5. LDR sensor.
6. Buzzer with driver.
7. Head Light.
8. LCD with driver.
9. PIC Microcontroller.
10. Reset Button.
11. Crystal Oscillator.
12. Wi-Fi module.

Software’s used in the project:

1. PIC-C compiler for Embedded C programming.
2. PIC kit 2 programmer for dumping code into Micro controller.
3. Express SCH for Circuit design.

   

   

Block diagram:  

   

     

 

video: