A PROTOTYPE OF SMART HELMET FOR WORKERS SAFETY IN HAZARDOUS ENVIRONMENT

Abstract

Safety is the most vital part of any type of industry. Negligence in the safety may cause damage of high
quality equipment or may cause loss of human life also in extreme cases. To avoid any kind of unwanted phenomena all
mining industries follow some basic precautions. Communication is the most vital key factor today, to monitor different
parameters continuously and to take necessary actions accordingly to avoid any types of hazards related to production,
managing of human resources.
To improve safety in underground mines, a reliable and range efficient communication system must be
established between workers moving in the mine and control room. Inside underground mines, the wired communication
network system is not that effective.
The demo module is constructed with four gas sensors for four directions that are connected to the controller
89C2051 through trigger circuit designed using comparator. When harmful gas is detected in any of the direction that
appropriate gas sensor will provide a logic signal to the controller by which the voice channel in the voice chip will be
activated by the controller to announce the information. The same way temperature sensor is interfaced to the controller
89C51 through ADC. All these parameter values are read and displayed in the LCD interfaced to the controller 89C51
and when any of the parameter goes abnormal, automatically the information will be transmitted to the monitoring
station through zigbee technology