Annotation:
The article concentrates on the review and the solving of the problems of
the diagnostics support of non-contact track coordinate dimensioning system
(SBPP) of subway trains, based on RFID technologies. In the text there is a detailed
discussion of the problems of assignment and of SBPP structure, but the main
attention is paid to the solution of the problem of reader-antenna path control.
The reason for the growing interest specifically to this subject were few cases of
missing of station radio-frequency tags during the system operation. To explain
that the authors have developed a hypothesis that interprets the missing of tags
by the processes of increasing the intermediate resistance in connectors of readerantenna
path and of infl owing of the moisture into detachable connections during
carriage washing. The article proposes, using axiomatic-deductive reasoning
method, a method for controlling a stationary mode of SBPP equipment’s RFID
path, that allows to ensure the efficiency of the latter during the process of planned
maintenance inspection before departure of trains from the railway depot to the line.
To enable the possibility of further implementation of the method the necessary
experimental research have been carried out, that were aimed at studying of the
process of attenuation increasing in the reader-antenna path. The article provides
the results obtained by processing the statistical data. The basic provisions of the
proposed method are verified by using correlation analysis. Based on these results
the article gives recommendations on the application of the method of the RFID
path state control of the RFID. The practical value of the proposed solution, that allows to increase the system operational reliability by minimizing the possibility of
putting into operation the train line with inoperative RFID hardware, is also noted.
Key words:
RFID technologies; RFID path; reader-antenna path; state control; attenuation
increasing; non-contact track coordinate dimensioning system