System and method for improved location accuracy

A location anchor comprising:

• a transceiver;
• a programmable processor;
• executable control software stored on a non-transitory computer readable medium;
• and
• a pressure sensor,
• wherein the transceiver is configured to transmit a signal that includes information related to a reading from the pressure sensor to a location engine,
• wherein, based on the signal that includes the information related to the reading from the pressure sensor, the location engine is configured to determine a differential pressure between the pressure sensor and a second pressure sensor in an object,
• wherein the location anchor is separate from the object, and
• wherein the location engine is configured to determine the differential pressure, and wherein, based on the differential pressure, the location engine is configured to estimate an altitude of the object.

A system comprising:

• a location engine;
• and
• a plurality of location anchors, wherein at least one of the plurality of location anchors comprises a plurality of directional transmitters and a pressure sensor, wherein the plurality of directional transmitters are configured to transmit a plurality of first signals to an object at a plurality of identifiable angles, wherein each directional transmitter of the plurality of directional transmitters is configured to include information unique to the respective identifiable angle in a corresponding first signal of the plurality of first signals transmitted from the plurality of directional transmitters, and wherein the pressure sensor is configured to determine a pressure reading at the at least one of the plurality of location anchors,
• wherein the location engine is configured to determine an angular orientation of the object with respect to the at least one location anchor based on the plurality of first signals,
• wherein, based on the angular orientation of the object with respect to the at least one location anchor, the location engine is further configured to estimate a location of the object,
• wherein the location engine is further configured to determine a differential pressure between the pressure sensor and a second pressure sensor in the object based on the pressure reading, and, based on the differential pressure, the location engine is further configured to estimate an altitude of the object.

A system comprising:

• a location engine;
• and
• a plurality of location anchors,
• wherein at least some location anchors of the plurality of location anchors are configured to transmit first signals to the location engine,
• wherein the location engine is configured to receive a second signal from an object,
• wherein, based on the first signals and the second signal, the location engine is configured to determine a differential pressure between the at least some location anchors and the object,
• wherein the at least some location anchors and the object are separate, and
• wherein, based on the differential pressure, the location engine is configured to estimate an altitude of the object.