CN103400170B - A kind of underground fiber orientation pick-up unit - Google Patents

Abstract

The invention provides an underground optical fiber positioning detection device, which includes a detector formed by connecting a computer and an RFID card reader and an RFID positioning label that is buckled on the underground optical fiber. The inner and outer hoops are formed by balls that facilitate the flexible rotation of the outer hoop relative to the inner hoop. The upper surface of the outer hoop is provided with an RFID chip and an RFID tag antenna. One side of the opening of the outer hoop is provided so that the outer hoop The hoop opening holds the downward facing weight. The invention uses the RFID card reader and the RFID chip buckled above the optical fiber to facilitate maintenance and inspection of the underground optical fiber cable to avoid construction waste. At the same time, the invention uses a double-layer RFID positioning tag structure to ensure that the RFID tag antenna faces the surface , Improve the ability to send and receive signals.

Description

An underground optical fiber positioning detection device

technical field

The invention relates to an underground optical fiber positioning detection device.

Background technique

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.

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 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 in underground fiber optics.

Contents of the invention

The present invention improves the above-mentioned difficult problem of optical fiber positioning detection and maintenance, and designs an underground optical fiber positioning detection device. The specific embodiment of the present invention is: an underground optical fiber positioning detection device, which is characterized in that it includes a The detector formed by the card reader connection and the RFID positioning tag buckled on the underground optical fiber.

Further, the RFID positioning tag is composed of open inner and outer hoops and balls arranged between the inner hoop and the outer hoop to facilitate the flexible rotation of the outer hoop relative to the inner hoop. The upper surface of the outer hoop is provided with For the RFID chip and the RFID tag antenna, a counterweight is provided at one end of the opening of the outer hoop to keep the opening of the outer hoop downward and to make the emitting surface of the RFID tag antenna vertically upward.

Further, the detector is placed on a trolley, and the frame of the trolley close to the ground is provided with a card reader flat antenna, and the card reader flat antenna is connected to the detector.

Compared with the prior art, the present invention has the following beneficial effects: the invention can conveniently realize maintenance and inspection of underground optical fiber cables through the RFID card reader and the RFID chip buckled above the optical fiber, avoiding construction waste, and at the same time, the invention The double-layer RFID positioning tag structure is used to ensure that the RFID tag antenna faces the ground and improve the ability to send and receive signals.

Description of drawings

Fig. 1 is a schematic structural diagram of the RFID positioning tag of the present invention.

Fig. 2 is a schematic diagram of the surface structure of the outer hoop of the present invention.

Fig. 3 is a schematic diagram of the working state of the present invention.

In the figure: 1-detector, 2-RFID positioning label, 3-ball, 4-cart, 5-card reader plate antenna, 6-optical fiber, 21-inner hoop, 22-outer hoop, 221-RFID Chip, 222-RFID tag antenna, 223-counterweight.

detailed description

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figures 1-3, an underground optical fiber positioning detection device includes a detector 1 formed by connecting a computer and an RFID card reader and an RFID positioning tag 2 buckled on an underground optical fiber 6 .

The RFID positioning tag 2 is composed of an open inner and outer hoop and a ball 3 arranged between the inner hoop 21 and the outer hoop 22 to facilitate the flexible rotation of the outer hoop 22 relative to the inner hoop 21. The outer hoop 22 The upper surface is provided with an RFID chip 221 and an RFID tag antenna 222, and one side of the opening of the outer hoop ring 22 is provided with a counterweight so that the opening of the outer hoop ring 22 is kept downward and the emitting surface of the RFID tag antenna 222 is vertically upward. Counterweight 223.

The detector 1 is placed on a trolley 4, and the frame of the trolley close to the ground is provided with a card reader flat antenna 5, and the card reader flat antenna 5 is connected with the detector 1.

When laying the underground optical fiber 6, the optical fiber 6 is hooped into the inner hoop 21, and then the RFID chip is arranged on the upper surface of the outer hoop. The surface of the outer hoop 22 is also printed with an RFID tag antenna 222. One side of the opening is also provided with a counterweight 223, the counterweight 223 and the RFID chip 221 are arranged at corresponding points completely opposite to the outer surface of the outer hoop 22, and a ball is arranged between the inner hoop 21 and the outer hoop 22. 3. The ball 3 and the inner and outer hoops form a structure similar to a ball bearing, so that no matter how the optical fiber 6 is rotated during construction, the counterweight 223 will rotate the RFID positioning tag 2 to the state where the opening is facing downward under the action of gravity. The RFID chip 221 and the RFID tag antenna 222 opposite to the counterweight 222 face the ground to improve the ability of sending and receiving signals.

As shown in Figure 3, the RFID positioning tag 2 is passive, and the receiving method is passive reception without power consumption. During detection, the detector 1 formed by connecting the computer with the RFID card reader is placed on the cart 4, The card reader panel antenna 5 is arranged on the frame below the cart 4, and its transmission power of the card reader panel antenna 5 structure is much larger than that of an ordinary card reader under the premise of meeting the specifications. The card reader panel antenna 5 and The ground is as close to the ground as possible, and its signal emission angle also shows strong directivity. The card reader panel antenna 5 is connected with the detector 1. When the trolley 4 passes directly above the RFID positioning tag 2 on the optical fiber 6, since the RFID tag antenna 222 is vertically upward, the electromagnetic waves emitted by the detector 2 are received more concentratedly, which can The content of the RFID positioning tag 2 is read, and the precise positioning and management of the underground optical fiber 6 is completed.

The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope of the present invention.

Claims (2)

1. a underground fiber orientation pick-up unit, it is characterized in that, comprise the detector be connected to form by computing machine and RFID card reader and the RFID positioning label be snapped on the optical fiber of underground, described RFID positioning label is formed in order to the ball of the relative interior garter spring flexible rotating of outer garter spring by opening indoor and outdoor garter spring and being arranged between interior garter spring with outer garter spring, described outer garter spring upper surface is provided with RFID chip and RFID label antenna, described outer garter spring opening one side is provided with outer garter spring opening is kept down, makes RFID label antenna surface of emission counterweight vertically upward.

2. a kind of underground according to claim 1 fiber orientation pick-up unit, it is characterized in that, detector is placed in go-cart, and the subaerial vehicle frame of described go-cart is provided with card reader plate aerial, and described card reader plate aerial is connected with detector.