The invention discloses an RFID (
Radio Frequency Identification Device) technology-based displacement sensing
positioning system and a positioning method thereof. The
system comprises a plurality of positioning communication units, wherein each positioning
communication unit is composed of two base stations and a certain length of leakage cable with two ends connected with the two base stations; the base stations on the two ends of the leakage cable send signals with time marks to a
mobile station, and the
mobile station in any position between the two base stations monitors and receives the signals sent by the two base stations, and the accurate position of the
mobile station between the two base stations can be analyzed and calculated out according to the
signal sending time of the two base stations and the
signal arrival time, as well as the known speed and distance of the
signal sending between the mobile
station and the two base stations through the leakage cable, thereby completing the displacement sensing positioning communication. According to the invention, the displacement sensing positioning communication of the mobile
station in a laneway is realized, and the installation and debugging of positioning card readers, substations and the like which are used in a traditional positioning
communications system are avoided, thereby simplifying the
system, reducing installation
workload and maintenance
workload in a later period, and improving the stability and performance of the
system. Therefore, whole-journey continuous accurate positioning communication is realized in the system coverage.