Object tracking using receivers

A system, comprising:

• a plurality of receivers connected together through a network and having a synchronized clock;
• a processor;
• a memory device that stores instructions executable by the processor to:
• receive, from at least one transmitter coupled to an object, a transmission signal, wherein the transmission signal is received at a subset of the plurality of receivers;
• identify, for each of the plurality of receivers in the subset, a time of receipt of the transmission signal and marking the transmission signal with a timestamp corresponding to the time of receipt;
• determine, using the marked transmission signals, a relative position of the object relative to the receivers;
• and
• identify a location of the object within an environment by correlating the determined relative position of the object to a map of the environment.

A product, comprising:

• a storage device that stores code, the code being executable by a processor and comprising:
• code that receives, from at least one transmitter coupled to an object, a transmission signal, wherein the transmission signal is received at a subset of a plurality of receivers, wherein the plurality of receivers are connected together through a network and have a synchronized clock;
• code that identifies, for each of the plurality of receivers in the subset, a time of receipt of the transmission signal and marking the transmission signal with a timestamp corresponding to the time of receipt;
• code that determines, using the marked transmission signals, a relative position of the object relative to the receivers;
• and
• code that identifies a location of the object within an environment by correlating the determined relative position of the object to a map of the environment.