Buried antenna skeleton device applied to RFID radio frequency identification and its underground installation method

Abstract

An underground antenna framework apparatus for RFID radio frequency identification and an underground installation method thereof, comprising an insulating medium framework (10) and a metal outer frame (20); the insulating medium framework (10) is made of polypropylene plastic, an antenna hole (11) being formed therein, said antenna hole (11) being used for accommodating a wire antenna, a groove (13) being disposed on one side of the inside of the insulating medium framework, a vibration sensor being installed respectively in the two ends of the groove (13), and a wire being connected to the sensor; the metal outer frame (20) is made of steel plate, the inside thereof being closely fitted to the insulating medium framework (10), the upper plane (22) of the metal outer frame being consistent with the upper plane (12) of the insulating medium framework, a radio frequency antenna lead tube and a vibration sensor lead tube being arranged at one end of the metal outer frame (20). An insulating medium outer shell is provided for burying the antenna underground, preventing the attenuation by the ground strata of energy emitted by the antenna, ensuring the emitting efficiency of the antenna, improving the overground emitting efficiency of the antenna; the apparatus is easily installed and secured in concrete or asphalt roads, and bears the rolling pressure of heavy vehicles.

Description

[0001] 【Technical field】 [0002] The invention relates to an underground antenna skeleton device applied to RFID radio frequency identification and an underground installation method thereof. [0003] 【Background technique】 [0004] Traditional RFID radio frequency sensors are suspended, called the antenna. But the traditional suspension antenna can not meet some special radio frequency identification: [0005] 1. Road lane identification: RFID radio frequency signs on high-speed vehicles, boundary conditions of road radio frequency identification: [0006] 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 ...

AI Technical Summary

Problems solved by technology

[0006] 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

[0007] 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

[0008] 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

[0010] 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.

Images