2results about How to "Long reading distance" patented technology

The utility model discloses an identification PCCP (prestressed concrete cylinder pipe), which relates to the technical field of concrete prefabricated parts and comprises a PCCP frame and an integrally formed concrete chip arranged on the PCCP frame. The PCCP frame comprises a peripheral steel cylinder, a pipe core outer wall concrete layer wrapping the peripheral steel cylinder, a prestressed steel wire wound around the periphery of the pipe core outer wall concrete layer, a mortar protection layer wrapping the prestressed steel wire and a pipe core inner wall concrete layer arranged on the inner side of the peripheral steel cylinder. The integrally-formed concrete chip is arranged on a peripheral steel cylinder at the socket end of the PCCP pipe frame and / or a concrete layer on the inner wall of the pipe core; the integrally-formed concrete chip is arranged in the identification PCCP pipe, so that identification and traceability management are facilitated. The PCCP information recording device is simple in principle and obvious in effect, can be effectively suitable for PCCPs with different information recording requirements, marks and traces the PCCPs at the same time, and remarkably improves the quality management level of concrete products or structures.

The invention provides an IGV fusion positioning method based on UHF RFID communication, and the method comprises the steps: arranging a plurality of positioning columns, and arranging four UHF RFID reader-writers, a laser radar scanner, a visual camera, and a vehicle-mounted information processing system; upright post positioning coordinate information of each positioning upright post is measured, and an RFID tag is arranged; scanning and identifying RFID tags on positioning upright posts around the IGV body, and transmitting a plurality of signal strength indication values and upright post positioning coordinate information to a vehicle-mounted information processing system; laser scanning is carried out on a positioning stand column near the IGV, so that laser identification stand column point cloud data is obtained, and then the laser identification stand column point cloud data is transmitted to a vehicle-mounted information processing system; positioning columns near the IGV are shot to obtain visual positioning data, and the visual positioning data are transmitted to a vehicle-mounted information processing system; and carrying out matching fusion to obtain real-time positioning coordinates of the IGV. The invention provides an IGV fusion positioning system based on UHF RFID communication. According to the invention, IGV navigation in a port is more accurate, reliable and stable.