Buried UHF electronic label

Abstract

The invention belongs to the field of radio frequency identification technology and underground buried object identification and positioning, and is a buried UHF electronic tag, comprising a tag protective shell, a tag filling body, a tag body and a tail ring. The label protective shell is a hollow polymer cylinder, and the two ends are sealed. The label body is located in the middle of the labelprotective shell, and the label filler is arranged between the label protective shell and the label body. A tag of that embed times is connecte with the underground buried object through a tail line,the axis of the tag is at an included angle of 30 to 60 with the ground, the highest point of the tag is 5 to 30 centimeters from the ground, and the UHF electronic tag can realize the position of theunderground buried object when the UHF electronic tag is read by a UHF reader.

Description

technical field [0001] The invention relates to an underground UHF electronic tag, which is suitable for identification of various underground pipelines. Background technique [0002] RFID technology is a technology that uses wireless communication technology to communicate between systems and transmit information to achieve target identification. [0003] The basic RFID system is divided into two parts: the electronic tag reader and the electronic tag, so the RFID technology is also called the electronic tag technology. [0004] Because each electronic tag has a globally unique number, large information storage capacity, encryption, information can be changed and locked according to needs, waterproof, corrosion resistance, high temperature resistance, long service life, non-contact and non-visual reading, The characteristics of long recognition distance and high recognition speed make RFID technology widely used in the fields of logistics supply chain, item management, man...

AI Technical Summary

Problems solved by technology

[0006] There are a large number of underground pipelines buried underground in cities and large buildings, such as power lines, communication cables, water pipes, sewage pipes, etc. Since these pipelines are buried underground, although the construction drawings will be kept after construction, because the ground structures will be Therefore, there are many difficulties in pipeline maintenance, repair and ground construction due to other reasons. It often causes the pipeline to be cut off during construction, and the pipeline that needs maintenance and repair cannot be accurately found in a short time during maintenance and repair.

[0007] The current way to find underground pipelines is generally ground marking method and drawing plus empirical method and GPS electronic drawing positioning method; the ground marking method uses marking piles partially buried in the ground or metal sheets installed on the ground, and the scope of marking piles is limited. In the city In most places, it is not possible to use identification piles. The cost of installing metal sheets on the ground is very low, but it is easy to lose the identification sheets due to vehicles rolling off, man-made damage and other reasons; GPS electronic drawing positioning method has begun in some places in recent years. However, since the theoretical positioning accuracy of the civil GPS / Beidou system is about 10 meters, the positioning accuracy will be lower due to signal reflection / diffraction near cities or large buildings, so the GPS electronic drawing positioning method can only be used for large The positioning of the scope cannot be accurately positioned; the drawing plus experience method is the most commonly used method now, and the drawing plus experience method relies on the long-term memory and experience of the maintenance personnel, and everything has to be started from scratch when there is a personnel change

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