METHOD FOR MONITORING THE STATE OF UNDERGROUND UNDERGROUND STRUCTURES AND SYSTEM FOR ITS IMPLEMENTATION

摘要

1. A method of monitoring underground installations of underground using electronic identifiers and readers, according to which the reader is fixed on the mobile object IDs of the electronic space is fixed on structural members, at the approach to the electronic mobile object identifier read its electronic reader identifier and code together with the moving object code is transmitted via radio to the radio electronic computer (PC), and the position of the electronic identifiers defined grid with a constant pitch, deposited on the floor plan, the electronic identifier codes and codes the coordinates of their position are stored in the computer, which determines the coordinates of a moving object and display it position on the monitor together with the plan of the room in an electronic ID used piezocrystal coated on its surface an aluminum interdigital transducer connected to a microstrip antenna and a set of reflectors, when approaching the identifier of the mobile object his reader irradiated electronic identifier harmonic oscillation of the carrier frequency ω, take it on the electronic identifier is converted into an acoustic wave, ensure its distribution over the surface of the piezoelectric crystal and back reflection, converts the reflected acoustic wave back into a composite signal with phase shift keying, the internal structure of which corresponds to the structure of the interdigital transducer, re-emit it in the air, taking the reader the mobile object is isolated for