Underground antenna framework device used for RFID radio frequency identification and underground installation method thereof

Abstract

The invention discloses an underground antenna framework device used for RFID radio frequency identification and an underground installation method of the underground antenna framework device used for RFID radio frequency identification. The underground antenna framework device used for RFID radio frequency identification comprises an insulating medium framework and a metal outer fame, wherein the insulating medium framework is made of polypropylene plastic, an antenna hole is formed in the insulating medium framework and is used for installation of a wire antenna, a groove is formed in one side of the interior of the insulating medium framework, vibration sensors are installed at the two ends of the interior of the groove respectively, a wire is connected to the sensors, the metal outer frame is made of steel plates, the interior of the metal outer frame is in close fit with the insulating medium framework, the upper plane of the metal outer frame is flush with the upper plane of the insulating medium framework, and a radio-frequency antenna lead pipe and a vibration sensor lead pipe are arranged at one end of the metal outer frame. According to the underground antenna framework device used for RFID radio frequency identification and the underground installation method of the underground antenna framework device used for RFID radio frequency identification, an insulating medium shell can be provided for an antenna buried underground, attenuation, cased by absorption of the stratum, of energy emitted by the antenna is avoided, the emitting efficiency of the antenna is guaranteed, the efficiency of overground emission of the antenna is improved, and the device can be installed and fixed in a concrete or asphalt road and can bear rolling of heavy vehicles.

Description

【Technical field】 [0001] The invention relates to an underground antenna skeleton device applied to RFID radio frequency identification and an underground installation method thereof. 【Background technique】 [0002] Traditional RFID radio frequency sensors are suspended, called the antenna. But the traditional suspension antenna can not meet some special radio frequency identification: [0003] 1. Road lane identification: RFID radio frequency signs on high-speed vehicles, boundary conditions of road radio frequency identification: [0004] Ordinary road lanes are 3.2 meters wide, and the vehicle height limit is 4.5 meters. The height of the suspension antenna in the lanes should be greater than 5 meters. The main lobe angle of the traditional antenna direction is 60 degrees. The width of the suspension antenna 5 meters above the road is 5.7 meters. Compared with the road width of 3.2 meters, the antenna identification width spans 1.2 meters across adjacent lanes, and the ...

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Problems solved by technology

[0004] Ordinary road lanes are 3.2 meters wide, and the vehicle height limit is 4.5 meters. The height of the suspension antenna in the lanes should be greater than 5 meters. The main lobe angle of the traditional antenna direction is 60 degrees. The width of the suspension antenna 5 meters above the road is 5.7 meters. Compared with the road width of 3.2 meters, the antenna identification width is 1.2 meters across adjacent lanes, and the width of each lane antenna without interference from adjacent lane antennas is only 0.8 meters, so the suspension antenna cannot be used for lane-divided radio frequency identification

[0005] 2. Due to the influence of the human body, the reading distance of the radio frequency ticket cards carried by passengers and spectators is less than 4 meters, while the height of the airport departure hall and venue hall is more than 6 meters. The traditional hanging antenna installed on the ceiling of the hall cannot identify passengers. , the radio frequency ticket card carried by the audience

[0006] 3. Some open-air freight yards have no roofs and poles to install traditional suspension antennas, so it is impossible to implement radio frequency signs on vehicles or goods entering and leaving the freight yard

[0008] The reason why there is no application of buried antennas at present is that the ground surface and formations have an absorption and attenuation effect on radio frequency transmission energy, and the function of radio frequency antennas is reduced. The antennas buried under the ground surface cannot recognize the RFID radio frequency signs on vehicles.

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