PLC based Multi-channel Fire Detection & Alarm System Project

Download Project Document/Synopsis



A fire alarm system is used to detect and warn the people through visual and audio appliances when smoke, fire, carbon monoxide or other fire producing chemicals are present. Fire accidents are the accidents which occur most frequently, which takes major lives. Flammable liquids and gases can cause an explosion if they come in contact with a heat source. Welding, torch cutting, and other fire producing work transmits sparks and molten material into the air, which is a common reason for combustible dust or flammable liquid to catch fire. There are more chances of fire accidents in industries. To overcome such circumstances, we have proposed a Multi-channel fire alarm system. In this fire alarm system, any signal from each fire flame detector at any level is detected and monitored using a monitoring system. The detectors are placed in such a way that they are parallel in different levels. This plc-based fire alarm system detects smoke, heat etc. the appliance system has buzzer for alarming and motor pump to stop the fire. Relay drivers are used to switch on/off relay according to PLC output. When the sensors from each level are triggered individually, the main buzzer operates and disconnects the AC power supply. Then it runs the emergency exit Door motor to escape, Lift comes to ground level and the water pump motor pumps water to the affected zone to stop the fire. The exit doors will get opened automatically.

nevonproject electronics kits
nevonproject electronics kits
  • Components
  • PLC
  • Gas Sensor
  • Push buttons
  • Led Lamps
  • Buzzer
  • DC motor
  • water pump
  • door
  • Relay

Block Diagram

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