Abstract: A system and method for visually warning a person of a dangerous condition related to the proximity of the person to a machine is provided. The system includes a transmitter system located on the machine, a locator for being carried by the person, an algorithm performed at the transmitter for determining coordinates of the locator relative to the transmitter system, data input into the controller defining one or more safety zones around the machine, a warning indicator for generating a signal when the locator enters any of the one or more safety zones, and a lamp associated with the person. The lamp may be a spot lamp for illuminating the area around the person, and it may also include one or more warning lamps associated with the warning indicator such that the one or more warning lamps are illuminated when the locator enters either of the safety zones.

Abstract: A system and method for detecting a proximity of a person to a machine includes a first transmitter unit carried by the person, a plurality of receiver units located on the machine at know locations, and a processing unit including data defining a first boundary around the machine. The first transmitter unit transmits a magnetic proximity signal having a predetermined signal strength and a predetermined signal frequency. Each of the plurality of receiver units is for determining a received signal strength of the received magnetic proximity signal. The processing unit: determines a location of the first transmitter unit relative to the machine based on the received signal strength of the magnetic proximity signal and the known location of the plurality of receiver units; and outputs a proximity warning signal if the location of the transmitter relative to the machine is within the first boundary around the machine.

Abstract: A system and method for detecting a proximity of a person to a machine includes a first transmitter unit carried by the person, a plurality of receiver units located on the machine at know locations, and a processing unit including data defining a first boundary around the machine. The first transmitter unit transmits a magnetic proximity signal having a predetermined signal strength and a predetermined signal frequency. Each of the plurality of receiver units is for determining a received signal strength of the received magnetic proximity signal. The processing unit: determines a location of the first transmitter unit relative to the machine based on the received signal strength of the magnetic proximity signal and the known location of the plurality of receiver units; and outputs a proximity warning signal if the location of the transmitter relative to the machine is within the first boundary around the machine.