Long-distance radio frequency electronic identification tire structure

• US 9,972,885 B2
• Filed: 08/01/2017
• Issued: 05/15/2018
• Est. Priority Date: 08/18/2016
• Status: Active Grant

• Current Assignee: Read Tag Technology Corp.
• Original Assignee: Read Tag Technology Corp.
• Inventors: Wu, Chi Ju, Chang, Shirl Mei, Chan, Alexander, Ting, Chin Hsien, Chan, Hsi Jui
• Primary Examiner(s): Hess, Daniel
• Application Number:
  US15/665,424
• Publication Number:
  US 20170358839A1
• Time in Patent Office: 287 Days
• Field of Search: 235492, 343711, 343873, 1521521
• CPC Class Codes: B60C 23/04 mounted on the wheel or tyre
• CPC Class Codes: G06K 19/07764 the adhering arrangement making the record carrier attachable to a tire tire temperature or pressur control arrangements, see B60C23/00
• CPC Class Codes: G06K 19/07766 comprising at least a second communication arrangement in addition to a first non-contact communication arrangement
• CPC Class Codes: G06K 19/07773 Antenna details antennas for wireless devices, e.g. RFID tags, in general H01Q1/22
• CPC Class Codes: G06K 19/07783 the coil being planar
• CPC Class Codes: G06K 19/07786 the antenna being of the HF type, such as a dipole
• CPC Class Codes: G06K 19/07794 the record carrier comprising a booster or auxiliary antenna in addition to the antenna connected directly to the integrated circuit
• CPC Class Codes: H01Q 1/2225 used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal
• CPC Class Codes: H01Q 1/2241 used in or for vehicle tyres
• CPC Class Codes: H01Q 1/3291 mounted in or on other locations inside the vehicle or vehicle body
• CPC Class Codes: H01Q 7/00 Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
• CPC Class Codes: H01Q 9/24 Shunt feed arrangements to single active elements, e.g. for delta matching

Abstract

A long-distance radio frequency electronic identification tire structure is provided. When the production of the tire is completed and an electronic tag reading device is used for identification, an RFID chip of an ultra high frequency electronic tag of a main tire body receives and sends an electromagnetic wave signal generated by a far-field copper film antenna and the electronic tag reading device. The frequency band and the bandwidth of the electromagnetic wave signal are adjusted by a frequency band/bandwidth adjustment portion, and first and second field effect adjustment grooves of first and second field effect adjustment portions are configured to adjust the field effect when a tire bead bundle and a steel belt layer reflect the electromagnetic wave signal, so that the electronic tag reading device can read the identification code of the ultra high frequency electronic tag at a wide angle and a long distance.

Claims

1. A long-distance radio frequency electronic identification tire structure, comprising a main tire body with an ultra high frequency electronic tag, an outer surface of the main tire body being formed with a tire tread, each of two sides of the tire tread being formed with a tire shoulder and a tire sidewall;

the main tire body having a bead assembly composed of a tire bead bundle and a bead filler and including an airtight layer, a liner layer, a steel belt layer, and a cover layer arranged from inside to outside;

the ultra high frequency electronic tag comprising a substrate sheet made of a flexible temperature-resistant insulating material, a far-field copper film antenna formed on a surface of the substrate sheet, and an antenna protective film made of a flexible temperature-resistant insulating material attached to a surface of the far-field copper film antenna;

the far-field copper film antenna including a frequency band/bandwidth adjustment portion, a first field effect adjustment portion and a second field effect adjustment portion at two sides of the frequency band/bandwidth adjustment portion respectively;

the frequency band/bandwidth adjustment portion having a rectangular perforation formed on a copper film to form a rectangular loop circuit, the rectangular loop circuit being electrically connected with a radio frequency identification chip;

the first field effect adjustment portion being a square wave antenna electrically connected with the rectangular loop circuit and matched with the tire bead bundle and the steel belt layer of the main tire body and having a plurality of first field effect adjustment grooves;

the second field effect adjustment portion being a square wave antenna electrically connected with the rectangular loop circuit and matched with the tire bead bundle and the steel belt layer of the main tire body and having a plurality of second field effect adjustment grooves each having a width less than that of the first field effect adjustment grooves.

2. The long-distance radio frequency electronic identification tire structure as claimed in claim 1, wherein the ultra high frequency electronic tag is attached to a surface of the liner layer of the main tire body and covered by the tire sidewall at one side of the tire tread.

3. The long-distance radio frequency electronic identification tire structure as claimed in claim 2, wherein the substrate sheet of the ultra high frequency electronic tag is provided with a near-field loop antenna formed by etching a copper foil at one side of the far-field copper film antenna, and two ends of the near-field loop antenna are electrically connected with another radio frequency identification chip to form a high frequency electronic tag.

4. The long-distance radio frequency electronic identification tire structure as claimed in claim 2, wherein a high frequency electronic tag is attached to a side of the ultra high frequency electronic tag, the high frequency electronic tag has a near-field loop antenna matched with the far-field copper film antenna of the ultra high frequency electronic tag, and two ends of the near-field loop antenna are electrically connected with another radio frequency identification chip.

5. The long-distance radio frequency electronic identification tire structure as claimed in claim 1, wherein the frequency band/bandwidth adjustment portion of the far-field copper film antenna of the ultra high frequency electronic tag uses the rectangular perforation to adjust a frequency band and bandwidth for use, the first field effect adjustment portion and the second field effect adjustment portion are dual square wave antennas and asymmetrical according to a reflection field pattern of the tire bead bundle and the steel belt layer relative to an electromagnetic wave signal, the first field effect adjustment portion is formed with two first field effect adjustment grooves, the second field effect adjustment portion is formed with two second field effect adjustment grooves, and the first field effect adjustment grooves each have a width greater than that of the second field effect adjustment grooves.

6. The long-distance radio frequency electronic identification tire structure as claimed in claim 1, wherein the substrate sheet and the antenna protective film of the ultra high frequency electronic tag are flexible temperature-resistant insulating films made of a polyimide (PI) material.