A person tracking method capable of tracking movements of a person captured by a camera through lighter processing in comparison with tracking processing that employs a Kalman filter or the like is provided. The seal generally includes a seal cavity provided in a housing, where the seal cavity is configured opposite the process tube. The IBLS also utilizes quotas and deficit counters to ensure that packets from each source receive their fair portion of the outgoing link bandwidth. A flexible strap is provide for securing the coiled cord onto the cord organizer and to secure the individual loops of the coil to prevent the loops from becoming entangled during transportation or storage.