TWI509525B - Writing method for electronic tag - Google Patents

Description

Electronic tag writing method

The present invention relates to a method of writing an electronic tag.

Radio Frequency Identification (RFID) is one of the important technologies in the 21st century. Traditional radio frequency identification mainly uses a special expensive radio frequency identification reader (Reader) to read the radio frequency identification tag attached to the object to obtain the data stored in the radio frequency identification tag. For example, radio frequency identification technology is applied to data access of stored value cards, tracking of access control personnel, animal tracking, equipment tracking, commodity check inventory, commodity checkout, product history security tracking management system, etc. . The product history is, for example, the entire production and supply chain logistics from raw materials, manufacturing, inventory, transportation to sales.

Ultra High Frequency Electronic Product Code (EPC) Radio Frequency Identification (RFID) has been widely used in article coding driven by the Commodity Barcode Association GS1. The product electronic code is designed as a universal identifier, defining a 36-bit serial number, plus a 24-bit product category that provides a unique identity code for each object in the real world at any time, anywhere. The world in the clouds The product electronic code can provide physical code addressing for each object. Before using the label, the manufacturer must write the company code according to GS1, plus the product category code and product serial number, and write the label number one by one. Therefore, the manufacturer needs to construct an environment in which the field is not interfered by other microwaves, so that the RFID reader can write the electronic code of the product into the label one by one through the wireless communication mode through the frequency band of the ultra high frequency. The frequency band of UHF is between 433 and 950 MHz.

The present invention relates to a method of writing an electronic tag.

According to the present invention, a method of writing an electronic tag is proposed. The method for writing the electronic tag includes: issuing a write command to the wireless microcontroller, the write command includes identifying the data and a specific address; initializing a Serial Peripheral Interface (SPI) or an Inter-integrated Circuit (Inter-integrated Circuit, I2C) interface, serial peripheral interface or interactive integrated circuit interface to connect wireless microcontroller and electronic tag; set electronic tag as controlled end according to write command; and wireless microcontroller via serial peripheral interface or interactive integrated circuit The interface writes the identification data to the electronic tag.

In order to better understand the above and other aspects of the present invention, the preferred embodiments are described below, and in conjunction with the drawings, the detailed description is as follows:

11‧‧‧ Terminal devices

12‧‧‧Wireless Microcontroller

13‧‧‧Electronic label

14‧‧‧ interface

15‧‧‧ tag reader

16‧‧‧Sensor

17‧‧‧Display device

201~206‧‧‧Steps

1 is an architecture of a terminal device, a wireless microcontroller, and an electronic tag of the present invention. schematic diagram.

Fig. 2 is a flow chart showing a method of writing an electronic tag according to a first embodiment of the present invention.

Figure 3 is a schematic view of the electronic tag reading of the present invention.

4 is a schematic structural diagram of a display device, a sensor, a terminal device, a wireless microcontroller, and an electronic tag according to a second embodiment of the present invention.

First embodiment

Please refer to FIG. 1 and FIG. 2 simultaneously. FIG. 1 is a schematic structural diagram of a terminal device, a wireless microcontroller and an electronic tag according to the present invention, and FIG. 2 is a flow chart of a method for writing an electronic tag according to the first embodiment of the present invention. Figure. The interface 14 connects the wireless microcontroller 12 and the electronic tag 13. The interface 14 is, for example, a Serial Peripheral Interface (SPI) or an Inter-integrated Circuit (I2C) interface. The electronic tag 13 is, for example, a radio frequency identification (RFID) tag, and the electronic tag 13 includes a chip and an antenna. The chip is, for example, a semi-active ultra high frequency radio frequency identification chip, and the frequency band of the ultra high frequency is between 433 and 950 MHz. The terminal device 11 writes the identification data to the electronic tag 13 via the wireless microcontroller 12 and the interface 14. The wireless microcontroller 12 communicates with the terminal device 11 via, for example, a Bluetooth module (BLE 4.0) or a ZigBee module. After the identification data is written in the electronic tag 13, the identification material in the electronic tag 13 can be read by the terminal device 11 or a tag reader (not shown).

The identification data is, for example, an electronic product code (EPC), and the terminal device 11 is, for example, a personal computer, a notebook computer, or a tablet. Computer, mobile phone or personal digital assistant. The product electronic code is designed as a universal identifier, defining a 36-bit serial number, plus a 24-bit product category that provides real-world unique identity encoding for each object anywhere, anytime. In the cloud world, product electronic code can provide physical code addressing for each object. It should be noted that the wireless transmission between the terminal device 11 and the wireless microcontroller 12 is not limited to the ultra-high frequency band, so it is feasible to operate in a frequency band other than 433 to 950 MHz, and the present invention is not limited thereto. For the convenience of description, FIG. 1 only shows an electronic tag. However, the actual application is not limited thereto, and the number of input and output pins of the wireless wireless controller 12 allows the wireless microcontroller 12 to simultaneously perform identification data writing of several electronic tags.

The method of writing the electronic tag includes the following steps: as shown in step 201, a write command is issued to the wireless microcontroller 12 via a terminal device 11. The write command includes the identification data and a specific address of the wireless microprocessor 12. As shown in step 202, after the wireless microcontroller 12 receives the write command, the wireless microcontroller 12 initializes the interface 14. As shown in step 203, the wireless microcontroller 12 obtains the current state of the electronic tag 13. As shown in step 204, after the wireless microcontroller 12 obtains the current state, the wireless microcontroller 12 sets the electronic tag 13 as a controlled end (Slave) according to the write command. After the wireless tag 12 sets the electronic tag 13 as the controlled end, the radio frequency response function (RF Transponder) of the electronic tag 13 is further disabled. As shown in step 205, after the electronic tag 13 is set as the controlled end, the wireless microcontroller 12 writes the identification data to the electronic tag 13 via the interface 14. As shown in step 206, the wireless microcontroller 12 sets the electronic tag 13 as the master. Wireless microcontroller After the electronic tag 13 is set as the main control terminal, the RF response function of the electronic tag 13 is enabled. After the identification data is written into the electronic tag 13, the terminal device 11 can read the identification data of the electronic tag 13 via the Bluetooth module or the ZigBee module. Alternatively, the identification material in the electronic tag 13 is read by the tag reader.

Please refer to FIG. 3, which is a schematic diagram of reading an electronic tag according to the present invention. After the identification data is written into the electronic tag 13, the identification data of the electronic tag 13 can be read via the tag reader 15. The tag reader 15 is, for example, an expensive UHF radio frequency identification tag reader, and the tag reader 15 can read the identification data carried by the electronic tag 13 via the frequency band of 433 to 950 MHz. Moreover, the identification data of the electronic tag 13 can also be read by the inexpensive terminal device 11. The terminal device 11 can read the identification data of the electronic tag 13 from a frequency band other than 433 to 950 MHz in addition to the frequency band of 433 to 950 MHz.

Second embodiment

Referring to FIG. 4, FIG. 4 is a schematic structural diagram of a display device, a sensor, a terminal device, a wireless microcontroller, and an electronic tag according to a second embodiment of the present invention. The second embodiment is mainly different from the first embodiment in that the second embodiment further includes a sensor 16 and a display device 17. The wireless microcontroller 12 is coupled to the sensor 16 and the display device 17. The sensor 16 is, for example, a temperature sensor, a GPS sensor or a bar code sensor, etc., and the display device 17 is, for example, an electronic paper or a liquid crystal display. The sensor 16 is configured to output a signal, such as a sensing signal, and the display device 17 is configured to display the signal, such as the sensing signal. In another embodiment, the wireless microcontroller 12, the sensor 16 and the display device 17 are also It can be further integrated into the electronic tag 13. Moreover, in other embodiments, the battery of the electronic tag 13 can be charged by a wireless charging module.

In conclusion, the present invention has been disclosed in the above preferred embodiments, and is not intended to limit the present invention. A person skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims.

201~206‧‧‧Steps

Claims (17)

A method for writing an electronic tag, comprising: issuing a write command to a wireless microcontroller, the write command comprising an identification data and an address; after receiving the write command, the wireless microcontroller initializes an interface The interface is connected to the wireless controller and the at least one electronic tag; the wireless microcontroller sets the electronic tag as a controlled end according to the write command; and the wireless microcontroller passes the interface, Write the identification data to the electronic tag. The writing method of claim 1, wherein the wireless microcontroller obtains a current state of one of the electronic tags after initializing the interface. The writing method of claim 2, wherein after the wireless microcontroller obtains the current state, the electronic tag is set as the controlled terminal. The writing method of claim 1, wherein the wireless microcontroller disables one of the RF tags of the electronic tag after the electronic tag is set to the controlled end. The writing method of claim 4, wherein after the identification data is written into the electronic tag, the wireless microcontroller sets the electronic tag as a master. The writing method of claim 5, wherein the wireless tag enables the electronic tag after the electronic tag is set as the master terminal The RF response function (RF Transponder). The writing method of claim 1, wherein the identification data is an electronic product code (EPC), and the address is a specific address of the wireless microcontroller. The writing method of claim 1, wherein the interface is one of a sequence peripheral interface (SPI) or an interactive integrated circuit (I2C) interface. The writing method of claim 1, wherein the writing command is issued by a terminal device. The writing method of claim 1, wherein the wireless microcontroller is integrated into the electronic tag. The method of claim 1, wherein the wireless microcontroller is coupled to a sensor and a display device, wherein the sensor is configured to output a signal, and the display device is configured to display the signal. The writing method of claim 11, wherein the sensor is a temperature sensor. The writing method of claim 1, wherein the sensor is a GPS sensor. The writing method of claim 1, wherein the sensor is a barcode sensor. The writing method of claim 1, wherein the display device is electronic paper. The writing method described in claim 1, wherein the display device Set as a liquid crystal display. The writing method of claim 1, wherein the electronic tag is a Radio Frequency Identification (RFID) tag.