Method and system for obtaining wire information

Patent metadata

Field	Value
Publication number	US-11354522-B2
Application number	US-202016862846-A
Country	US
Kind code	B2
Filing date	Apr 30, 2020
Priority date	Mar 20, 2020
Publication date	Jun 7, 2022
Grant date	Jun 7, 2022

Abstract

A method and system for obtaining wire information, includes a RFID tag, a RFID reader, and a data center. The RFID tact obtains the sensing information of the wire and transmits the sensing information and identification information of the RFID tag. The RFID reader transmits high-frequency electromagnetic waves to trigger the RFID tact and transmits and receives sensing information and identification information sent by the RFID tag. The data center is communicatively connected with the RFID reader and determines the type of the received sensing information based on the received sensing information and identification information for data analysis.

First claim

What is claimed is:

1. A method for obtaining wire information, comprising:
emitting high-frequency electromagnetic waves to trigger a radio frequency identification (RFID) tag by a RFID reader;
transmitting a notice signal to the RFID reader by the RFID tag to ask the RFID reader pause to emit the high-frequency electromagnetic waves;
obtaining a data of sensor of the wire by the RFID tag, the data of sensor includes current, temperature and humidity;
transmitting the data of sensor and an identification of the RFID tag to the RFID reader by the RFID tag;
resuming the transmit of the high-frequency electromagnetic waves after receiving the data of sensor by RFID reader;
transmitting the data of sensor and the identification of the RFID tag to a data center according to a communicating connection between the RFID reader and the data center; and
analyzing a classification of the data of sensor according to the identification of the RFID tag by the data center;
wherein the RFID tag comprises:
a clip clamping to the wire;
a sensor of temperature and humidity to obtaining temperature and humidity;
a coil antenna receiving the high-frequency electromagnetic waves which are emitted from the RFID reader, receiving electromagnetic waves of the wire, transmitting the data of sensor and the identification of the RFID tag, coupling a first induced electromotive force according to the high-frequency electromagnetic and coupling a second induced electromotive force according to the electromagnetic waves of the wire;
an amplifying circuit electrically connecting with the coil antenna, generating a notice signal according to the first induced electromotive force and generating the wire information according to the second induced electromotive force; and
a microprocessor coupling with the sensor of temperature and humidity, the microprocessor asking the RFID reader pause to emit the high-frequency electromagnetic waves according to the notice signal by the coil antenna, obtaining the current according to the amplifying circuit and generating the data of sensor according to the temperature, the humidity and the current; and

the amplifying circuit comprises a transistor, a resistor, a first capacitor, a diode, a second capacitor, and an amplifier, the coil antenna generates a charge according to the first induced electromotive force and stores the charge in the first capacitor, the first capacitor transfers the charge in the first capacitor to the second capacitor when the charge in the first capacitor is greater than a charge in the second capacitor, the notice signal is generated when the second capacitor reaches a certain voltage, the coil antenna couples the second induced electromotive force after the RFID reader pauses emitting the high-frequency electromagnetic waves, the coil antenna charges the first capacitor according to the second induced electromotive force to generate a voltage on the resistor, the microprocessor obtains the voltage on the resistor and calculates the current according to the voltage on the resistor and a known resistor value of the resistor.

2. The method for obtaining wire information as claimed in claim 1 , wherein a plane formed by the coil antenna is parallel to the wire, a normal direction of the plane is orthogonal to an extending direction of the wire, and magnetic force lines of the electromagnetic wave of the wire is perpendicular to the plane.

3. The method for obtaining wire information as claimed in claim 2 , further comprising distinguish the classification of the data of sensor according to an identification code, wherein the identification of the RFID tag includes a number of the RFID tag and the identification code of the data of sensor.

4. The method for obtaining wire information as claimed in claim 2 , wherein the communicating connection includes Ethernet, 4G, 5G, Wi-Fi, or blue tooth.

5. The method for obtaining wire information as claimed in claim 2 , further comprising:
obtaining a first wire information by a first RFID tag and transmitting the first wire information and a first identification of the first RFID tag;
obtaining a second wire information by a second RFID tag and transmitting the second wire information and a second identification of the second RFID tag;
receiving the first wire information, the first identification, the second wire information and the second identification by the RFID reader, and transmitting the first wire information, the first identification, the second wire information and the second identification to the data center; and
distinguishing the first wire information from the first RFID tag according to the first identification, the second wire information from the second RFID tag according to the second identification by the data center.

6. A system for obtaining wire information, comprising:
a RFID tag obtaining a data of sensor of wire and transmits the data of sensor, a identification of the RFID tag, wherein the data of sensor includes current, temperature and humidity;
a RFID reader emitting high-frequency electromagnetic waves to trigger the RFID tag, and receives the data of sensor, the identification of the RFID tag; and
a data center connecting by communication with the RFID reader, the data center receives the data of sensor and the identification of the RFID tag and analysis a classification of the data of sensor according to the identification of the RFID tag;
wherein the RFID tag comprises:
a clip clamping to the wire;
a sensor of temperature and humidity to obtaining temperature and humidity;
a coil antenna receiving the high-frequency electromagnetic waves which are emitted from the RFID reader, receiving electromagnetic waves of the wire, transmitting the data of sensor and the identification of the RFID tag, coupling a first induced electromotive force according to the high-frequency electromagnetic and coupling a second induced electromotive force according to the electromagnetic waves of the wire;
an amplifying circuit electrically connecting with the coil antenna, generating a notice signal according to the first induced electromotive force and generating the wire information according to the second induced electromotive force; and
a microprocessor coupling with the sensor of temperature and humidity, the microprocessor asking the RFID reader pause to emit the high-frequency electromagnetic waves according to the notice signal by the coil antenna, obtaining the current according to the amplifying circuit and generating the data of sensor according to the temperature, the humidity and the current; and

the amplifying circuit comprises a transistor, a resistor, a first capacitor, a diode, a second capacitor, and an amplifier, the coil antenna generates a charge according to the first induced electromotive force and stores the charge in the first capacitor, the first capacitor transfers the charge in the first capacitor to the second capacitor when the charge in the first capacitor is greater than a charge in the second capacitor, the notice signal is generated when the second capacitor reaches a certain voltage, the coil antenna couples the second induced electromotive force after the RFID reader pauses emitting the high-frequency electromagnetic waves, the coil antenna charges the first capacitor according to the second induced electromotive force to generate a voltage on the resistor, the microprocessor obtains the voltage on the resistor and calculates the current according to the voltage on the resistor and a known resistor value of the resistor.

7. The system for obtaining wire information as claimed in claim 6 , wherein a plane formed by the coil antenna is parallel to the wire, a normal direction of the plane is orthogonal to an extending direction of the wire,

Assignees

• Nanning Fugui Prec Ind Co Ltd

Inventors

• Yu Zhi-Cheng
• Lin xin-yue

Classifications

• G01R19/00

  Arrangements for measuring currents or voltages or for indicating presence or sign thereof (G01R5/00 takes precedence; for measuring bioelectric currents or voltages A61B5/24) · CPC title

• G06K17/0025

  the arrangement consisting of a wireless interrogation device in combination with a device for optically marking the record carrier · CPC title

• G06K19/0717 Primary

  the sensor being capable of sensing environmental conditions such as temperature history or pressure · CPC title

• G01R1/0408

  Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets (G01R1/067 takes precedence; mass production testing systems G01R31/59; testing of connections G01R31/66; for testing printed circuit boards G01R31/2808) · CPC title

• G06K7/10366 Primary

  the interrogation device being adapted for miscellaneous applications · CPC title