System for relative positioning of access points in a real time locating system

A method for providing real time locating and gas exposure monitoring, the method comprising:

• receiving, by an interface, gas levels in a work area detected by respective sensor devices in the work area indicative of gas emissions;
• and
• receiving, by the interface, a location identifier associated with the respective sensor devices;
• displaying, by a processor, on a display, a map of the work area;
• and
• representing, by the processor, the gas emissions on the map of the work area, wherein the displayed map includes a representation of the gas levels at respective locations of the sensor devices.

A method for providing real time locating and gas exposure monitoring of a work area, the method comprising:

• receiving, by an interface, an alarm data item from a sensor device, the alarm data item being associated with a first user being exposed to a gas concentration measured by the sensor device;
• identifying, by a processor, a location of the sensor device in the work area based on a location identifier of the sensor device;
• identifying, by the processor, a second user located within a predetermined vicinity of the location of the sensor device;
• receiving, by the processor, operator instructions to transmit the alarm data item;
• and
• in response to the operator instructions, transmitting, by the interface, for receipt by a communication device of the second user, an indication of the alarm data item received from the first user and the location of the sensor device in the work area.

A system comprising:

• a plurality of hazard detection units in a work area;
• and
• a controller configured to monitor hazardous conditions in the work area, the controller being configured to receive, from a first hazard detection unit of the plurality of hazard detection units, an alarm and a location of the first hazard detection unit, in response to the first hazard detection unit's detection of a predetermined hazardous condition;
• the controller configured to identify the first hazard detection unit being within a work zone of the work area;
• the controller configured to identify a second hazard detection unit of the plurality of hazard detection units within the work zone a predetermined distance from the first hazard detection unit;
• and
• the controller configured to transmit to the second hazard detection unit a request to check the safety of a user of the first hazard detection unit in response to the second hazard detection unit being within the work zone from which the alarm from the first hazard detection unit is received.