Patent ID: 7592911

Claim:
A method of monitoring the activities of workers on a construction site where each worker wears a hardhat having an electric circuit forming a party thereof where the electric circuit functions to transmit information to a monitoring system, the method comprising: dividing the construction site into a plurality of distinct sectors where each sector covers an area not covered by another sector; transmitting information from the electric circuits of the hardhats of workers located in the plurality of sectors of the construction site where the information transmitted from the electric circuits of the hardhats includes position signals that indicate the location of workers on the construction site and personal information uniquely associated with the workers wherein the hardhats of the workers in the plurality of distinct sectors are monitored by the monitoring system; utilizing on or more processors to process the position signals and personal information received from the electric circuit of each hardhat; and generating one or more messages target for workers whose location and personal information indicate access to an unauthorized area of the construction site.