Active rfid-based real time location systems

A system comprising:

• one or more tag readers;
• said one or more tag readers being positioned peripherally to a region;
• a tag;
• one or more processors;
• one or more computer readable storage media;
• computer program instructions;
• said computer program instructions being stored on said one or more computer readable storage media;
• said computer program instructions comprising instructions to:
• receive a signal, by at least one of said one or more tag readers, from a tag;
• determine a received signal strength indication for at least one of said one or more tag readers;
• map at least one said received signal strength indication onto at a one dimensional representation of said region to yield a mapped data;
• perform pattern recognition on said mapped data to yield a pattern data;
• and
• apply machine learning to said pattern data to locate said tag within said region.

A computer program product comprising one or more computer readable storage media and program instructions stored on said one or more computer readable storage media, said program instructions comprising instructions to:

• identify one or more tag readers, said one or more of tag readers being positioned peripherally to a region;
• receive a signal, by at least one of said one or more tag readers, from a tag;
• determine a received signal strength indication for at least one of said one or more tag readers;
• map at least one said received signal strength indication onto at a one dimensional representation of said region to yield a mapped data;
• perform pattern recognition on said mapped data to yield a pattern data;
• and
• apply machine learning to said pattern data to locate said tag within said region.