Patent US7598854

System and method for creating a proximity map of plurality of living beings and objects

A proximity network map defines who and what objects have come in contact of each other including location and time. This map selects the list people who have come in contact with known infected people based on contagious disease epidemiology criteria to control its spread, or to prevent radiation poisoning, limit bio-chemicals exposure, etc. These people then undergo testing and quarantine procedures. It monitors hygiene practices and reduces nosocomial infections in hospitals and mitigates the pandemic flu threat by controlling contamination. It controls people interaction, information flow in a high security environment, control crime or gang activities. Each person or object carrying a proximity-sensing unit with unique ID records all units it encountered over a period of time. This information is stored with time stamp in a relational database and transferred to network servers. The databases are then replication throughout via a central web database server for retrieval and analysis.