Monitoring system consist of wireless portable devices that each employee have and wear it during all worktime. Portable devices equipped with wireless module, accelerometer, gyroscope, temperature sensor and gas detector. Also it contain ID of employee. Also system consist of base stations - Internet Gateways. Base stations are located in all places where employee have risk for health.
When employee enter danger zone, his portable device interact with one of base stations. Base station start to monitor sensors. If signal from any of sensor reach critical level (for example fall detection, gas detection, absence of movement for some period) base station generate alarm message and transmit it to internet. This signal could be captured in location of lifeguard team, or could be broadband transmitted to all personel of facility to smartphones, e-mails, activate special lights and horns. Location of base stations is determined thats why system will have information according place where accident was detected.