CN215341132U

CN215341132U - RFID device

Info

Publication number: CN215341132U
Application number: CN202022361499.2U
Authority: CN
Inventors: 李丹
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-22
Filing date: 2020-10-22
Publication date: 2021-12-28
Anticipated expiration: 2030-10-22

Abstract

An RFID device that writes information on a sheet to an RFID tag of the sheet, the RFID device comprising: the image acquisition module is used for acquiring images of the information carriers on the surface sheet; the information identification module is used for identifying the image from the image acquisition module to obtain the data information recorded by the information carrier; the main control module comprises a tag identification unit and a control unit, wherein the tag identification unit identifies whether a unique RFID tag exists in the detection area, and the control unit receives an identification result from the tag identification unit, receives data information from the information identification module and sends a write-in instruction and data information to the RFID tag read-write module; the RFID label read-write module writes data information into an RFID label of the bill of surface; and the human-computer interaction module outputs prompt information, and a user inputs operation information or instructions through the human-computer interaction module.

Description

RFID device

Technical Field

The utility model relates to the logistics industry, in particular to an RFID device used in the logistics industry.

Background

At present, each link of warehousing, transportation, sorting, delivery and the like in the logistics industry of China mainly depends on manual operation, and is time-consuming and labor-consuming. Not only the operation cost of express delivery is high, and quality of service is difficult to remain stable for a long time moreover, and the manpower is not enough and goods overstock scheduling problem appears very easily in the express delivery peak period.

In recent years, with the development of information technology, the logistics field is also applying new technology to digitalize and informationize to improve efficiency.

The logistics industry uses a bill of materials for the recording of information in order to uniquely mark goods for tracking, sorting, etc. The information on the express bill which is common in our lives usually includes sender information, recipient information, article types and the like, and the information logistics industry of the type is originally filled by senders and is printed by bill printers at present. In addition to this information, the sheet is also provided with coded information as its unique mark, initially a series of numbers, and with the development of technology, bar codes and two-dimensional codes are used as information carriers.

When registering and sorting goods, it is necessary to perform operations based on information such as the destination of the goods. In addition to manual sorting, which is time-consuming and labor-consuming, the current automated identification method is to acquire the information of the goods by identifying the bar code or two-dimensional code on the bill.

However, due to the particularity of the logistics industry, the goods information is recorded by using a bar code or a two-dimensional code, and the process of identifying the carrier in the manner has obvious limitations. For example, in the case of recognition, there is a demand for the posture of the cargo, and it is necessary to orient the barcode or the two-dimensional code on the cargo sheet in the direction in which the recognition device is located, so that correct recognition can be performed. If the goods are not placed in proper directions, the goods cannot be identified. In addition, if the bar code or the two-dimensional code is damaged or dirty, the failure of identification is also caused. Therefore, the efficiency of bill information identification in the logistics industry at the present stage needs to be improved.

For this reason, the logistics industry tries to use Radio Frequency Identification (Radio Frequency Identification, abbreviated as "RFID") technology to perform contactless bidirectional data communication in a Radio Frequency manner, and specifically, read and/or write information data to a recording medium (an electronic tag or a Radio Frequency card) in a Radio Frequency manner, so as to achieve the purpose of identifying a target and the purpose of data exchange.

The basis of the full intelligent processing of the logistics industry is to quickly identify each parcel, and the non-contact quick reading of the RFID technology can well meet the requirement. As long as the RFID label is in the communication range of the RFID reading and writing device, the RFID label can be identified and read and write information data no matter how the attitude of the goods package is and which direction the label faces.

In this regard, the use of RFID tags to record information on goods is far superior to bar codes and two-dimensional codes, and is easy to handle and has a high recognition rate.

Therefore, the logistics industry is expected to apply the RFID technology, for example, in the links of batch handover and check of goods, inventory of goods in a warehouse, track tracking of people, vehicles and objects in a field, and finding lost goods.

In order to use the data information in the RFID tag to perform operations such as sorting during the transportation of the goods, it is necessary to write information data into the RFID tag before the transportation (for example, at the time of receiving the goods or at the time of warehousing the goods), for example, in the waybill printing process, or after the waybill printing and before the transportation.

In the operation of writing the RFID tag, the prior art solution uses a dedicated RFID sheet printer, and such a commercially available RFID sheet printer uses a sheet with an RFID tag to print the receipt information on the sheet and also to write the information to the RFID tag attached to the sheet.

However, the integrated RFID surface sheet printer needs to be abandoned and purchased again, and the price of the integrated RFID surface sheet printer is expensive, which is too expensive for logistics enterprises. In addition to purchasing such RFID facer printers, a completely new warehouse management system needs to be replaced to support the associated functionality of the newly purchased integral RFID facer printer.

Thus, for logistics enterprises, instead of upgrading one machine, numerous machines requiring numerous logistics department or logistics warehouse are upgraded. Obviously, the integrated RFID surface single printer has huge investment in popularization and application, and relates to a plurality of systems, and for users, the fund required by the whole operation is too high, the time is long, and the effect is slow.

Although the RFID technology will greatly improve the logistics efficiency, the current RFID surface sheet printer has huge economic cost and high investment cost in the industry, and thus is not practically popularized and applied.

SUMMERY OF THE UTILITY MODEL

In view of the above disadvantages of the prior art, the present invention aims to provide a low-cost RFID device, which avoids a large amount of time and labor and material costs for large-scale modification of a warehouse system in the logistics industry to apply the RFID technology, accelerates the popularization of the RFID technology in the logistics industry, and enables the RFID technology to be practically applied in the logistics industry.

In order to achieve the above object, the present invention provides an RFID device that can recognize existing information on an article flow receipt and write the recognized information into an RFID tag of the receipt.

An RFID device that writes information on a sheet to an RFID tag of the sheet, the RFID device comprising:

the image acquisition module is used for acquiring an image of the information carrier on the menu to obtain an acquired image;

an information recognition module that recognizes the acquired image from the image acquisition module,

obtaining data information recorded by the information carrier;

a main control module including

A tag identification unit that identifies whether a unique RFID tag exists in the detection area, and

a control unit which receives the identification result from the tag identification unit, receives the data information from the information identification module, and sends an instruction and the data information to the RFID tag read-write module;

the RFID label read-write module writes the data information into the RFID label of the bill;

and

and the human-computer interaction module outputs prompt information and a user inputs operation information or instructions through the human-computer interaction module.

Preferably, the main control module includes a verification unit, after the write operation of the RFID read-write module is completed, the RFID read-write module reads the content written in the RFID tag to obtain read content, and sends the read content to the verification unit, the verification unit compares the received read content with the data information from the information identification module, if the two are the same, the verification unit determines that the verification is successful, and sends a result of successful verification to the control unit, and if the two are different, the verification unit determines that the verification is failed, and sends a result of failed verification to the control unit.

Preferably, after the verification fails, the control unit sends a write command and the data information to the RFID tag read-write module again.

Preferably, if the number of verification failures is equal to 3, the main control module outputs a failure state of writing in the RFID tag through the human-computer interaction module.

Preferably, the human-machine interaction module comprises a status display element and a user key interface.

Preferably, the status display element is a light emitting diode and a buzzer, and is connected to the main control module, and the main control module controls the on/off of the light emitting diode and the output of the buzzer.

Preferably, the human-computer interaction module comprises a liquid crystal display.

Preferably, the RFID device incorporates a network communication module, which is connected to an external system.

Preferably, the RFID device takes the form of a portable PDA.

Preferably, the RFID device is incorporated in a frame, the image acquisition module is disposed at an upper portion of the frame, the main control module and the RFID read/write module are disposed at a lower portion of the frame, and the frame leaves a space for placing a surface sheet printer.

The RFID device of the present invention is a device that "reprocesses" a printed form and is used in conjunction with existing form printers. In other words, the operation target of the RFID device of the present invention is a receipt on which information is printed by an existing receipt printer.

Therefore, the user does not need to abandon the existing surface sheet printer, and only needs to add the RFID device of the utility model to expand the functions and apply the RFID label technology. For users, compared with the solution of completely replacing a commercially available RFID (radio frequency identification) surface sheet printer and replacing a warehousing management system, the RFID device and the upgrading system are added to the existing surface sheet printer and system, so that the invested capital cost and time cost are greatly reduced, and the popularization and the application are easier.

The utility model can be seamlessly embedded into the existing logistics express system without a large amount of software research and development investment and a large amount of hardware investment.

Drawings

The following description is made in conjunction with the accompanying drawings, in which:

FIG. 1 is a schematic diagram of an RFID device according to the present invention;

FIG. 2 is a schematic diagram of a master control module of an RFID device according to the present invention;

FIG. 3 is a schematic diagram of a master control module of an RFID device in accordance with a preferred embodiment of the present invention;

FIG. 4 is a schematic diagram of a face sheet for an RFID device according to the present invention;

FIG. 5 is a schematic diagram of a human-machine interaction module of an RFID device according to the present invention;

FIG. 6 is a flow chart of a method of operation of an RFID device according to the present invention;

FIG. 7 is a flow chart of a method of operation of the RFID device of the present invention in a frame configuration at the exit of a thermal face sheet printer;

FIG. 8 is a flow chart of a method of operation of an RFID device in accordance with a preferred embodiment of the present invention; and

fig. 9 is a schematic diagram of an RFID device of the present invention arranged in a frame configuration at the exit of a facial sheet printer.

Detailed Description

The following describes embodiments of the present invention in detail with reference to the drawings.

As shown in fig. 1, the RFID device 1 of the present invention includes an image acquisition module 11, an information identification module 12, an RFID tag read/write module 13, a main control module 14, and a human-computer interaction module 15.

[ image acquisition Module ]

The image obtaining module 11 is configured to perform an image obtaining operation on a receipt 21 (a receipt on a parcel of goods located in a detection area, or a receipt printed by the receipt printer 3), and obtain an object of an information carrier 211 (for example, an image of a barcode, a two-dimensional code, or a text) on the receipt 21, where the composition of the receipt 21 is schematically shown in fig. 4.

When the bill 21 appears in the field of view of the image capturing module, the image capturing module 11 starts image capturing (for example, taking a photograph), and after the image is captured, the image capturing module 11 transmits the captured image to the information recognition module 12.

[ information recognition Module ]

The information identification module 12 is used for identifying the received image to obtain data information.

The information recognition module 12 has an input connected to the image acquisition module 11 and an output connected to the main control module 14.

The image from the image acquisition module 11 enters the information identification module 12 through the input end, the information identification module 12 starts image identification to obtain data information, and after the data information is successfully identified, the information identification module 12 transmits the identified data information to the main control module 14 through the output end.

[ RFID tag read/write Module ]

And the RFID tag read-write module 13 receives an instruction (for example, a read instruction or a write instruction) and data information from the main control module 14, and performs a read operation and a write operation on the RFID tag 212 in the detection area.

Specifically, the RFID tag read/write module 13 scans a detection field of view (detection area), receives a response signal from the RFID tag 212, and transmits data information from the main control module 14 to the RFID tag 212.

The RFID tag read-write module 13 has an input end and an output end, the input end and the output end are respectively connected with the main control module 14, the input end is used for receiving instructions and data information from the main control module 14, and the instructions include a tag identification instruction, a tag write-in instruction and a tag content read instruction.

When the input end of the RFID tag read/write module 13 receives the RFID tag identification instruction of the main control module 14, the detection/read/write end of the RFID tag read/write module 13 starts to scan the RFID tag 212, receive the response signal from the RFID tag 212, and send the response signal to the tag identification unit 142 of the main control module 14 through the output end.

When the input end of the RFID tag read/write module 13 receives the tag write instruction of the main control module 14, the detection/read/write end of the RFID tag read/write module 13 is started to write the data signal from the main control module 14 into the RFID tag 212, and after the write operation is completed, the RFID tag read/write module 13 sends a result of the completion of the write operation to the main control module 14 through the output end.

When the input end of the RFID tag read/write module 13 receives a tag content read instruction from the main control module 14, the detection/read/write end of the RFID tag read/write module 13 is activated to read the content of the RFID tag 212, and the read RFID tag content information is transmitted to the main control module 14 through the output end.

[ Master control Module ]

As shown in fig. 2, the main control module 14 includes a control unit 141 and a tag identification unit 142.

The control unit 141 issues instructions and receives information, including: a tag identification command, a read command, or a write command is issued to the RFID tag read/write module 13, and a tag identification result from the tag identification unit 142 is received.

The tag identification unit 142 is used to confirm whether or not an RFID tag is present in the detection area and the RFID tag is a unique tag. That is, it is confirmed whether or not an RFID tag is present in the detection area. When receiving the RFID tag response signal sent from the RFID tag read/write module 13, the tag identification unit 142 determines whether the received response signal satisfies a specific condition, i.e., whether there is only one response signal, and if the result is "yes", it determines that there is a unique RFID tag in the detection area, and at this time, the tag identification unit 142 sends a result of successful RFID tag identification to the control unit 141. If the RFID tag response signal is not received or a plurality of response signals are received after the scanning, it is determined that there is no RFID tag or a plurality of RFID tags in the detection area, and at this time, the tag identification unit 142 transmits a result of the RFID tag identification failure to the control unit 141.

The master control module 14 has a plurality of inputs and outputs.

A first input of the main control module 14 is connected to an output of the information identification module 12, and is configured to receive data information from the information identification module.

A first output end of the main control module 14 is connected to an input end of the RFID tag read-write module 13, and sends an instruction, for example, an RFID tag identification instruction, an RFID tag write-in instruction, and an RFID tag content read instruction, to the RFID tag read-write module.

A second input end of the main control module 14 is connected to an output end of the RFID tag read/write module 13, and is configured to receive various information from the RFID tag read/write module 13, such as an RFID tag response signal, an RFID tag write instruction execution result, or an RFID tag content read by the RFID tag read/write module 13.

The second output end of the main control module 14 is connected to the status display element 151 of the human-computer interaction module 15, and is used for outputting prompt information.

An input end (third input end) of the main control module 14 is connected to the user key interface 152 of the human-computer interaction module 15, and the main control module 14 obtains real-time operations (for example, key-press/lifting operation states) performed by the user through the input end and receives operation information or instructions of the user.

[ human-computer interaction Module ]

The human-computer interaction module 15 is used for outputting a signal to prompt a user, transmitting or expressing the operation state and the operation error state of the RFID device 1 of the present invention, and the user can input operation information or instructions through the human-computer interaction module 15.

As shown in fig. 5, the human-machine interaction module 15 has a status display element 151 and a user key interface 152.

The status display element 151 may be an LED (light emitting diode, which may be one or more) and a buzzer, which are connected to an output terminal (second output terminal) of the main control module 14, and the on/off of the LED and the output of the buzzer are controlled by the main control module 14.

Preferably, the status display element 151 may also be an LCD (liquid crystal display), or the status display element 151 may include an LED, and a buzzer and an LCD, the LCD is connected to an output (third output) of the main control module 14, and the instruction issued by the main control module 14 operates the content display on the LCD.

The user key interface 152 of the human-computer interaction module 15 is connected to an input terminal (a third input terminal) of the main control module 14, and the main control module 14 obtains a key pressing/lifting operation state performed by a user in real time through the input terminal, and receives operation information or an instruction of the user.

The operation of the RFID device of the present invention is described below with reference to fig. 6.

The operation object of the embodiment is a good on which information is printed on a bill, specifically, it is calculated that the good has the bill and a barcode, a two-dimensional code or a character is printed on the bill.

The RFID device 1 is activated after the cargo has entered the detection zone of the RFID device of the utility model.

Step 1, the image acquisition module 11 automatically detects the field of view, and when the goods attached with the receipt 21 are placed in the field of view of the image acquisition module 11, the image acquisition module 11 performs image acquisition on the information carrier 211 (such as a bar code, a two-dimensional code or characters) on the receipt 21, such as taking a picture, to obtain an acquired image.

Step 2, the image acquisition module 11 sends the acquired image to the information identification module 12.

And 3, the information identification module 12 identifies the image to obtain data information.

In step 4, the information identification module 12 transmits the identified data information (e.g. the content of barcode/two-dimensional code/text) to the main control module 14.

And step 5, after receiving the content sent by the information identification module 12, the main control module 14 sends a reading instruction to the RFID tag reading and writing module 13.

And step 6, the RFID label reading and writing module 13 performs scanning and reading.

Step 7, if the RFID tag response signal is received, the RFID tag read/write module 13 sends the received tag response signal to the tag identification unit 142 of the main control module 14. If the tag response signal is not received, the RFID tag read-write module 13 outputs a prompt that the RFID tag does not exist to the human-computer interaction module 15, and the process is ended.

Step 8, the tag identification unit 142 determines whether there is only one legal response signal in response to the received response signal. And if the result is yes, determining that the only legal RFID label exists in the detection area, at this time, resetting the number of times of writing the current RFID label into the check error, and proceeding to the next step 9. If a plurality of legal response signals exist, a plurality of legal RFID tags exist in the detection area, at this time, the tag identification unit 142 judges that the identification fails, sends a prompt to the human-computer interaction module 15, outputs a prompt of RFID tag collision, and ends the process.

In step 9, the tag identification unit 142 sends the result of successful RFID tag identification to the control unit 141 of the main control module 14.

Step 10, the control unit 141 of the main control module 14 sends a write instruction and written content to the RFID tag read-write module 13, where the written content is the data information of the barcode, the two-dimensional code, or the text identified in step 4.

Step 11, the RFID tag read/write module 13 sends a wireless signal including a write command and data information to the RFID tag 212 of the bill

In step 12, after the RFID tag 212 receives the write command, it stores the received data information in the tag storage unit.

In step 13, the RFID tag 212 sends a written wireless signal to the RFID tag read/write module 13.

Step 14, the RFID tag read-write module 13 sends a signal indicating completion of the write instruction to the main control module 14.

Step 15, the main control module 14 outputs a prompt of successful completion of writing of the RFID tag 212 to the human-computer interaction module 15, and the process is ended.

Through the above-described process, the RFID device 1 writes the data information written on the information carrier 211 on the sheet 21 into the RFID tag 212 of the sheet 21.

After such an operation, the sheet 21 on the goods carries two types of information, one is information of a bar code, a two-dimensional code or a character, and the other is information stored in the RFID tag.

When the goods enter the subsequent logistics transmission link, the information in the RFID label can be directly read by using the RFID reader-writer, and then the classification, the transfer and other operations are carried out according to the read information.

With the RFID device 1 of the present invention, it is possible to add the use of RFID tags to a sheet processed by an existing sheet printer, which is used in combination with the existing sheet printer. The use of the existing surface sheet printer is not abandoned, so that the cost of using the RFID label by a user is low, and the use of the RFID label is easily added to the actual use process.

[ product form ]

The utility model can adopt various product forms, for example, a portable PDA form, and a user can carry out scanning identification and RFID writing on received goods by holding the portable RFID device of the utility model.

The present invention may also take the form of a fixed frame, as shown in fig. 9.

The device of the utility model takes the form of a frame: the image acquisition module 11 is arranged at the upper part 41 of the frame 4; the frame 4 is provided with a space for placing the existing thermosensitive surface single printer 3 in the logistics industry; the main control module 14 and the RFID read-write module 13 are arranged at the lower part of the frame 4. The operation of this product form is shown in figure 7.

The operation steps of the RFID device of the preferred embodiment are shown in fig. 7.

Step 1, the receipt printer 3 receives a receipt printing task from the warehousing system/business system and prints and outputs an express receipt 21.

Step 2, mail information (including but not limited to bar code/two-dimensional code/character) on the bill 21 enters a detection end view field of an image acquisition module 11 arranged near a printing outlet of the bill printer 2 (the upper part 41 of the frame 4). The sheet 21 printed with the mail message stays there (at the printer outlet) for a period of time, for example 3 seconds.

And step 3, the image acquisition module 11 acquires an image.

The remaining operation steps are substantially the same as the steps (steps after step 2) described above with reference to fig. 6, and are not described again here.

[ preferred embodiments ]

The present invention is not limited to the above-described embodiments, and may be implemented in various forms or in a more preferable form.

Preferred embodiment 1

Preferably, the master control module 14 of the RFID device of the present invention may be additionally provided with a verification unit 143, which adds a verification function of writing RFID content on the basis of the original workflow.

As shown in fig. 3, the main control module 14 may further include a verification unit 143.

The verification unit 143 performs verification confirmation of whether the RFID tag writing is correct, that is, checks whether the content written in the RFID tag 212 coincides with the information data recognized from the facebook image. Specifically, the verification unit 143 compares the RFID tag content information from the RFID tag read/write module 13 with the data information from the information identification module 12 to verify whether the write operation of the RFID tag is completed correctly. If the comparison result is consistent, the verification unit 143 determines that the verification is successful, and sends the result of successful verification to the control unit 141; if the comparison result is not consistent, the checking unit 143 determines that the checking is unsuccessful, and transmits a result of the checking failure to the control unit 141.

The method of operation of the preferred embodiment is described below in conjunction with fig. 8.

Step 1, the image acquisition module 11 automatically detects the field of view, and when a goods attached with the receipt 21 is placed in the field of view of the image acquisition module 11, or when a receipt printed by a receipt printer is placed in the field of view of the image acquisition module 11, the image acquisition module 11 acquires an image of the information carrier 211 (such as a barcode, a two-dimensional code, or a text) on the receipt 21, such as taking a picture.

And step 5, after receiving the identification data information sent by the information identification module 12, the main control module 14 sends a reading instruction to the RFID tag reading and writing module 13.

Step 8, the tag identification unit 142 determines whether there is only one response signal in response to the received response signal. And if the result is yes, confirming that the unique RFID tag exists in the detection area, at the moment, resetting the number of times of writing the current RFID tag into the check error, and entering the next step 9. If a plurality of response signals exist, a plurality of RFID tags exist in the detection area, at this time, the tag identification unit 142 determines that the identification fails, sends a prompt to the human-computer interaction module 15, outputs a prompt of RFID tag collision, and ends the process.

Step 15, the main control module 14 sends an instruction for reading the RFID content to the RFID read/write module 13.

Step 16, the RFID read/write module 13 reads the content of the RFID tag.

In step 17, the RFID read/write module 13 sends the read content to the verification unit 143 of the main control module 14.

In step 18, verification unit 143 compares the received information content with the identification information content from information identification module 12 received in step 4. If yes, indicating that the RFID tag write was successful, proceed to step 19. If the comparison result is not consistent, the current number of write-check errors of the RFID tag is increased by one, and the process proceeds to step 20.

And 19, the main control module 14 outputs an RFID tag write success completion prompt through the man-machine interaction module 15, and the process is ended.

And step 20, detecting whether the number of times of current write verification errors of the RFID tag is equal to 3. If the error times are equal to 3, the main control module 14 outputs the failure state of writing in the RFID label through the man-machine interaction module 15, and the process is ended; and if the verification failure times are less than 3, returning to the step 5.

Preferred embodiment 2

The RFID device of the utility model can also be combined with a network communication module to be connected with an external system (such as an IOT platform or a service system).

The system is added with a remote network connection module, so that the function of informing a remote server of the successful execution result of the process, network remote configuration and the like can be realized.

The first input end of the network connection module is connected with the fourth output end of the main control module, receives commands of configuration, connection and the like of the main control module, accesses the network by adopting a mode of, but not limited to, LAN/WiFi/5G and the like through a network end, establishes communication connection and data exchange with a remote server, and sends data from the main control module to the remote server; and the first output end of the network connection module is connected with the fourth input end of the main control module, and the data from the remote server is sent to the main control module.

Therefore, the method can be conveniently integrated with an external system, form good service linkage and ensure smooth execution of a service flow. Meanwhile, the remote configuration and management of the equipment can be realized through the network, the state of the equipment can be monitored in real time, and the equipment fault can be found and eliminated in time.

While the utility model has been described in connection with a preferred embodiment, it is to be understood that the utility model is not limited to the embodiment disclosed herein, but is capable of numerous modifications and equivalent arrangements within the scope of the appended claims.

Claims

1. An RFID device that writes information on a sheet to an RFID tag of the sheet, the RFID device comprising:

the information identification module is used for identifying the acquired image to obtain data information recorded by the information carrier;

a main control module including

a control unit which receives the identification result from the tag identification unit, receives the data information from the information identification module, and sends an instruction and the data information to an RFID tag read-write module;

an RFID tag read-write module for writing the data information into the RFID tag of the menu; and

2. The RFID device of claim 1, wherein the master module further comprises a verification unit, wherein

After the write-in operation of the RFID tag read-write module is completed, the RFID tag read-write module reads the content written in the RFID tag to obtain read content, and sends the read content to the verification unit,

the verification unit compares the received read contents with the data information from the information identification module,

if the two are the same, the checking unit judges that the checking is successful, sends a result of the successful checking to the control unit, and,

if the two are different, the checking unit judges that the checking fails and sends the result of the checking failure to the control unit.

3. The RFID device of claim 2, wherein

And after the verification fails, the control unit sends a write-in instruction and the data information to the RFID label read-write module again.

4. The RFID device of claim 3, wherein the main control module outputs a status of failure in writing to the RFID tag through the human-computer interaction module if the number of verification failures is equal to 3.

5. The RFID device of claim 1, wherein the human interaction module comprises a status display element and a user key interface.

6. The RFID device according to claim 5, wherein the status display element is a light emitting diode and a buzzer, and is connected to the main control module, and the main control module controls the on/off of the light emitting diode and the output of the buzzer.

7. The RFID device of claim 5, wherein the human-computer interaction module comprises a liquid crystal display.

8. The RFID device of claim 1, wherein the RFID device incorporates a network communication module that connects to an external system.

9. The RFID device of claim 1, wherein the RFID device takes the form of a portable PDA.

10. The RFID device according to claim 1, wherein the RFID device is incorporated in a frame, the image acquisition module is provided at an upper portion of the frame, the main control module and the RFID tag reading and writing module are provided at a lower portion of the frame, and a space is left in the frame for placing a sheet printer.