Method and apparatus receiving reports from at least two wireless vehicular sensor nodes and stepping through a process of comparing filtered queues to determine the first and the second waveform in time, leading to counting the vehicles passing the magnetic sensors of the wireless vehicular sensor nodes. A chain-like linkage system made up of a series of joints is molded in a single step from materials having different melting temperatures in a series of alternating communicating mold cavities. Said field oxide film contains extending portions extending to the interior of the active region; the side portions of extending portions are connected to silicon oxide film, and the exposed surface portions of extending portions become regions for hydrogen diffusion. The flexible band includes an accessory connector for attaching accessories such as a scent container, holder, or electric fan.