An underground optical fiber positioning detection device

Abstract

The invention provides an underground optical fiber positioning and detecting device which comprises a detector and an RFID (radio frequency identification device) positioning tag, wherein the detector is formed by connecting a computer with an RFID card reader; the RFID positioning tag is buckled on an underground optical fiber and comprises an inner hoop with an opening, an outer hoop with an opening and balls, and the balls are arranged between the inner hoop and the outer hoop, so that the outer hoop can flexibly rotate relative to the inner hoop; and an RFID chip and RFID tag antennae are arranged on the upper surface of the outer hoop, and a balance weight piece which enables the opening of the outer hoop to keep downward is arranged at one side end of the opening of the outer hoop. The underground optical fiber positioning and detecting device can conveniently maintain and check an underground optical cable through the RFID card reader and the RFID chip buckled above the optical fiber, and the construction waste is prevented; and meanwhile, the RFID tag antennae face the earth's surface by means of the double-layer RFID positioning tag structure, and the signal transceiving capacity is improved.

Description

technical field [0001] The invention relates to an underground optical fiber positioning detection device. Background technique [0002] Because the ground surface is covered by multiple paving or reference objects are changed, the construction unit often cannot find the fiber optic cable bundles that were previously laid underground, or cannot perform maintenance and inspection on the cables, resulting in construction waste and difficult maintenance. Therefore, the inventor designed and adopted RFID positioning tags dedicated to optical fibers, which can easily read the parameters and positions of optical fiber cables buried under the ground through card reading equipment, and do not need to dig out the pavement layer to check or find optical fiber cables. [0003] In addition, due to the thick covering layer on the optical fiber during the optical fiber laying project, even moisture or debris hinders signal transmission. Use a general RFID tag antenna, because its directi...

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Problems solved by technology

[0003] In addition, due to the thick covering layer on the optical fiber during the optical fiber laying project, even the signal transmission is hindered by moisture or debris.

Use a general RFID tag antenna, because its directivity is not strong enough, under the condition of a certain total power, it cannot penetrate the covering layer or the signal is very weak, and because the directivity is not strong enough, it is impossible to accurately locate the fiber position, so it is not applicable Underground Fiber

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