Importance

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Abstract

The invention relates to a system for providing a combined monitoring over a toll-container sealing, weighing-container sealing, or border crossing-container sealing, which comprises: (a) a plurality of combined toll-seal, weighing-seal or border crossing-seal interrogators, which are mounted along highways, said interrogators transmitting a same interrogating signal in a same standardized communication protocol and at the same operating frequencies, by all interrogators; (b) a plurality of toll, weighing, or border crossing, whichever is the case, transponders which are installed in vehicles, and a plurality of container sealing transponders which are installed in containers, said sealing transponders by receiving interrogation signal transmit a sealing response signal which is distinct from corresponding toll, weighing, or border crossing response signals transmitted by toll, weighing, or border crossing transponders; (c) decoding means within each interrogator for receiving and decoding response signals, and for separating response signals coming from sealing transponders from those coming from toll, weighing, or border crossing transponders, whichever is the case; and (d) an analyzing unit within each interrogator for analyzing the status of each decoded response signal coming from a sealing transponder, and for transmitting a status of the sealing transponder, as included in the decoded signal, or the decoded signal itself to a control center.

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First Claim