RFID reader-writer control system based on sensor and welding robot system

Abstract

The utility model provides an RFID reader-writer control system and a welding robot system based on a sensor, the RFID reader-writer control system comprises at least one control assembly, and the control assembly comprises an RFID reader-writer used for reading an RFID tag on an object to be detected; the sensor is connected with the RFID reader-writer and is used for detecting whether an object to be detected exists in the reading range of the RFID reader-writer or not; the controller is connected with the sensor and the RFID reader-writer and can generate an opening signal or a closing signal according to a detection result of the sensor and send the opening signal or the closing signal to the RFID reader-writer; after receiving the detection result, the controller generates and sends an opening signal, and the controller can also generate a closing signal; wherein the RFID reader-writer can be turned on when receiving the turn-on signal or stop working when receiving the turn-off signal. According to the utility model, the starting of the RFID reader-writer can be controlled according to the result of the sensor, so that the RFID reader-writer does not need to be started for a long time, and the service life of the RFID reader-writer can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of welding equipment, and in particular to an RFID reader control system and a welding robot system based on a sensor. Background Art

[0002] An RFID reader, namely radio frequency identification, automatically identifies a target object through radio frequency identification signals and obtains relevant data without manual intervention. It can identify high-speed moving objects and can simultaneously identify multiple RFID tags. The RFID reader replaces barcode scanning in the production link to achieve automatic data collection. Currently, the welding RFID reader has a large amount of manual intervention and is mainly in a discrete production mode. It is impossible to control the reader through pipeline equipment such as PLC (Programmable Logic Controller). Therefore, the reader adopts a constant identification mode, resulting in a short service life of the reader.

[0003] Therefore, how to propose an RFID (Radio Frequency Identification) reader control system based on a sensor to extend the service life of the reader in the welding system has become an urgent problem to be solved at present. Summary of the Utility Model

[0004] This application proposes an RFID reader control system based on a sensor, which solves the problem of the short service life of the reader in the welding system in the related art.

[0005] To this end, the first object of the utility model is to provide an RFID reader control system based on a sensor.

[0006] The second object of the utility model is to provide a welding robot system.

[0007] In view of this, the technical solution of the first aspect of the utility model provides an RFID reader control system based on a sensor for a welding robot system. The RFID reader control system includes at least one control component. The control component includes: an RFID reader for reading the RFID tag on the object to be inspected; a sensor connected to the RFID reader for detecting whether there is an object to be inspected within the reading range of the RFID reader; a controller connected to the sensor and the RFID reader, capable of generating an enabling signal or a disabling signal according to the detection result of the sensor and sending it to the RFID reader; the controller is used to generate and send an enabling signal after receiving the detection result, and the controller can also generate a disabling signal; wherein, the RFID reader can be turned on when receiving the enabling signal or stop working when receiving the disabling signal.

[0008] In this technical solution, the control device of the RFID reader of the welding robot system is improved. The RFID reader control system includes at least one control component, and the control component includes an RFID reader, a sensor, and a controller. The sensor can detect whether there is an object to be inspected within the reading range of the RFID reader, so as to judge whether the RFID reader needs to work. When the sensor detects that there is an object to be inspected within the reading range of the RFID reader, it means that there is already an object within the reading range of the RFID reader and the RFID reader needs to work to identify the RFID tag on the object to be inspected, and then send an activation signal or a shutdown signal to the RFID reader to activate or deactivate the RFID reader. The RFID reader control device in the present utility model is provided with a sensor and a controller on the basis of the related technology, and can control the activation of the RFID reader according to the result of the sensor, so that the RFID reader does not need to be activated for a long time, which can greatly improve the service life of the RFID reader. At the same time, the sensor can automatically identify the object to be inspected, so it can reduce the manual intervention and realize the complete pipeline control.

[0009] In some possible designs, the control component further includes: a converter, one end of the converter is connected to the sensor, and the other end of the converter is connected to the controller. The converter is used to convert the signal sent by the sensor into a signal that the controller can recognize.

[0010] In this design, the control component further includes a converter. One end of the converter is connected to the sensor, and the other end of the converter is connected to the controller. The converter can convert the detection result sent by the sensor into a detection result that can be recognized by the controller. Specifically, the specific data of the sensor is not important. It only needs to be clear whether the sensor has detected data to judge whether there is an object to be inspected within the detection range of the RFID reader. Therefore, there is only one kind of detection result that the controller can receive, that is, the object to be inspected is recognized. And the controller can only send one kind of signal that needs to be activated.

[0011] In some possible designs, the converter includes an IO (Input-Output) module.

[0012] In some possible designs, the controller sends an activation signal and a shutdown signal to the RFID reader through a server.

[0013] In this design, the controller sends an activation signal and a shutdown signal to the RFID reader through a server. All the control components are connected to the server together. Through the server, multiple control components can be connected together, which plays a role in facilitating the management of all control components.

[0014] In some possible designs, the RFID reader includes: a scanning module for scanning the model information carried on the RFID tag; an Ethernet module connected to the scanning module; wherein, the Ethernet module is connected to a server, and is used to obtain an enabling signal and a disabling signal from the server, and control the enabling and disabling of the scanning module based on the enabling signal and the disabling signal.

[0015] In this design, the RFID reader includes a scanning module and an Ethernet module. Among them, the scanning module can scan the model information carried on the RFID tag, and the Ethernet module is connected to the scanning module. Users can control the operation of the RFID reader by disconnecting or connecting the Ethernet module. For example, in a working scenario, users control the RFID reader to connect to the network, thereby controlling the normal operation of the scanning module and further reading the model information on the RFID tag. That is, users can independently control the operation of the RFID reader, and by reasonably arranging the usage time of the RFID reader, the service life of the RFID reader is further improved.

[0016] In some possible designs, the RFID reader control system further includes: a communication module disposed on the RFID reader for communication between the controller and the RFID reader, and for receiving the enabling signal and the disabling signal from the controller and sending them to the RFID reader; the communication module includes one or a combination of the following: a WiFi (Wireless Fidelity) module, a Bluetooth module, and a 5G (5th Generation Mobile Communication Technology) module.

[0017] In this design, the RFID reader control system further includes: a communication module disposed on the RFID reader for communication between the controller and the RFID reader, and for receiving the enabling signal and the disabling signal from the controller and sending them to the RFID reader; the communication module includes one or a combination of the following: a WiFi module, a Bluetooth module, and a 5G module, thereby achieving convenient communication without laying cables and reducing safety hazards caused by cables.

[0018] In some possible designs, the sensor is one or a combination of the following: a position sensor, a light sensor, and a weight sensor.

[0019] In this design, the sensor includes at least one of a position sensor, a light sensor, and a weight sensor. Among them, the position sensor can detect the position of the object to be inspected. When the distance between the object to be inspected and the position sensor reaches the threshold, the position sensor issues a detection result. The light sensor can sense the change of light, and by sensing the change of light, it can detect whether there is an object to be inspected within the detection range of the RFID reader. The weight sensor is arranged on the workbench. When an object to be inspected is placed on the workbench, the weight sensor will detect the weight change and thus issue a detection result. This solution can adopt at least one of a position sensor, a light sensor, and a weight sensor. By using the sensor to determine whether there is an object to be inspected within the detection range of the RFID reader, it can be determined whether to issue a detection result to activate the RFID reader.

[0020] In some possible designs, the RFID reader control system further includes: a manual switch, connected to the controller, and the controller can generate an on signal or an off signal according to the state of the manual switch.

[0021] In this design, the RFID reader control system further includes: a manual switch, connected to the controller, and the controller can generate an on signal or an off signal according to the state of the manual switch. The manual switch serves as an emergency switch and can manually turn on or off the RFID reader.

[0022] According to the second aspect of the present invention, a welding robot system is further proposed, including: a workbench for placing workpieces; an RFID tag provided on the workpiece, and the RFID tag carries model information corresponding to the workpiece; the sensor-based RFID reader control system proposed in any of the above technical solutions.

[0023] In this design, the welding robot system includes a workbench for placing workpieces, an RFID tag is provided on the workpiece, and the sensor-based RFID reader control system can identify the RFID tag on the workpiece, so that the RFID reader does not need to be turned on for a long time, which can greatly improve the service life of the RFID reader. At the same time, the sensor can automatically identify the object to be inspected, so it can reduce manual intervention and realize complete pipeline control.

[0024] In some possible designs, the welding robot system further includes: a process parameter system and a welding robot component; the process parameter system includes: a database storing model information and welding parameters of the workpiece; a matching module for matching welding parameters corresponding to the model information according to the database and outputting the welding parameters; the welding robot component includes: a robotic arm for picking up and welding the workpiece; a control module for receiving the welding parameters and adjusting the operating parameters of the robotic arm according to the welding parameters.

[0025] In this design, the process parameter system includes a database and a matching module. Among them, the database stores the model information of workpieces and welding parameters, and there is a corresponding relationship between the model information of workpieces and the welding parameters. The matching module can match the welding parameters corresponding to the model information according to the database and output the welding parameters. That is to say, after receiving the model information, the process parameter system matches the welding parameters corresponding to the model information in the database through the matching module, and sends the obtained welding parameters to the welding robot assembly. The process parameter system can complete the conversion of model information and welding parameters, realizing the all-round automatic control of the welding robot system. The welding robot assembly includes a robotic arm and a control module. The robotic arm can pick up and weld workpieces, and the control module can receive the welding parameters and adjust the operating parameters of the robotic arm according to the welding parameters. That is to say, after the control module receives the welding parameters, it can control the operating parameters of the robotic arm according to the welding parameters, that is, automatically adjust the operating parameters of the robotic arm according to the welding parameters, ensuring that the welding robot assembly can weld workpieces of different models and specifications without manual adjustment, enhancing the applicability of the welding robot system.

[0026] In some possible designs, the RFID tag includes an RFID nickel-cobalt tag.

[0027] In this design, the RFID tag includes an RFID nickel-cobalt tag. That is to say, the RFID tag uses a nickel-cobalt material that is resistant to high temperatures. Generally, the temperature in the welding workshop is relatively high, and the RFID tag is attached to the workpiece, and the temperature of the workpiece is even higher during the welding process. RFID tags made of general materials are easily damaged by high temperatures. Therefore, using RFID nickel-cobalt tags can greatly improve the stability of the tags to ensure that the welding robot system can operate automatically.

[0028] In some possible designs, the RFID tag includes: a base layer and a cover layer, which are oppositely arranged; a sandwich layer, which is arranged between the base layer and the cover layer; and a radio frequency circuit, which is arranged in the sandwich layer.

[0029] In this design, the RFID tag includes a base layer, a cover layer and a sandwich layer. Among them, the base layer and the cover layer are oppositely arranged, the sandwich layer is arranged between the base layer and the cover layer, and the radio frequency circuit is arranged in the sandwich layer. That is to say, the RFID tag has a multi-layer structure, and the radio frequency circuit is not exposed outside the RFID tag, but exists inside the RFID tag. On the one hand, the base layer and the cover layer play a physical protection role for the radio frequency circuit. On the other hand, the radio frequency circuit is arranged in the sandwich layer, which can also improve the flatness of the RFID tag.

[0030] The additional aspects and advantages of the present utility model will become apparent in the following description section or be learned through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the following will briefly introduce the drawings required for use in the description of the embodiments or related technologies. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0032] Figure 1 is one of the schematic diagrams of the sensor-based RFID reader control system according to an embodiment provided by the present invention;

[0033] Figure 2 is the second schematic diagram of the sensor-based RFID reader control system according to an embodiment provided by the present invention;

[0034] Figure 3 is the third schematic diagram of the sensor-based RFID reader control system according to an embodiment provided by the present invention;

[0035] Figure 4 is the schematic diagram of an RFID reader according to an embodiment provided by the present invention;

[0036] Figure 5 is one of the schematic diagrams of the welding robot system according to an embodiment provided by the present invention;

[0037] Figure 6 is the second schematic diagram of the welding robot system according to an embodiment provided by the present invention.

[0038] Among them, Figures 1 to 6 the corresponding relationship between the reference numerals and component names in is as follows:

[0039] 1 RFID reader control system, 10 control component, 11 RFID reader, 112 scanning module, 114 Ethernet module, 12 sensor, 122 position sensor, 124 light sensing sensor, 126 weight sensor, 13 controller, 14 converter, 142 IO module, 15 communication module, 152 WiFi module, 154 Bluetooth module, 156 5G module, 16 manual switch, 2 server, 3 welding robot system, 32 process parameter system, 322 database, 324 matching module, 34 welding robot component, 342 robotic arm, 344 control module, 30 workbench, 4 workpiece, 42 RFID tag. Detailed implementation manners

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0041] An embodiment of the first aspect of the present invention provides an RFID reader control system 1 based on sensors for a welding robot system 3. The RFID reader control system 1 includes at least one control component 10. The control component 10 includes: an RFID reader 11 for reading RFID tags on an object to be inspected; a sensor 12 connected to the RFID reader 11 for detecting whether there is an object to be inspected within the reading range of the RFID reader 11; a controller 13 connected to the sensor 12 and the RFID reader 11, capable of generating an enabling signal or a disabling signal according to the detection result of the sensor 12 and sending it to the RFID reader 11; the controller is used to generate and send an enabling signal after receiving the detection result, and the controller 13 can also generate a disabling signal; wherein, the RFID reader 11 can be activated when receiving the enabling signal or stop working when receiving the disabling signal.

[0042] In this embodiment, as Figure 1 shown, the control device of the RFID reader 11 of the welding robot system 3 is improved. The RFID reader control system 1 includes at least one control component 10. The control component 10 includes an RFID reader 11, a sensor 12 and a controller 13. Among them, the sensor 12 can detect whether there is an object to be inspected within the reading range of the RFID reader 11, so as to judge whether the RFID reader 11 needs to work. When the sensor 12 detects that there is an object to be inspected within the reading range of the RFID reader, it means that there is already an object within the reading range of the RFID reader 11, and the RFID reader 11 needs to work to identify the RFID tag 42 on the object to be inspected, and then send an enabling signal or a disabling signal to the RFID reader 11, so as to activate or close the RFID reader 11. The RFID reader 11 control device in the present invention, on the basis of the related technology, is provided with a sensor 12 and a controller 13, which can control the activation of the RFID reader 11 according to the result of the sensor 12, so that the RFID reader does not need to be activated for a long time, which can greatly improve the service life of the RFID reader 11. At the same time, the sensor 12 can automatically identify the object to be inspected, so it can reduce the manual intervention and realize the complete pipeline control.

[0043] In some possible embodiments, the control component 10 further includes: a converter 14, one end of the converter 14 is connected to the sensor 12, and the other end of the converter 14 is connected to the controller 13. The converter 14 is configured to convert the signal emitted by the sensor 12 into a signal that can be recognized by the controller 13.

[0044] In this embodiment, as Figure 2 shown, the control component 10 further includes a converter 14. One end of the converter 14 is connected to the sensor 12, and the other end of the converter 14 is connected to the controller 13. The converter 14 can convert the detection result emitted by the sensor 12 into a detection result that can be recognized by the controller 13. Specifically, the specific data of the sensor 12 is not important. It only needs to be clear whether the sensor 12 has detected data, so as to determine whether the object to be detected appears within the detection range of the RFID reader 11. Therefore, there is only one detection result that the controller 13 can receive, that is, the object to be detected is recognized. And the controller 13 can only emit one signal that needs to be activated.

[0045] In some possible embodiments, the converter 14 includes an IO module 142.

[0046] In some possible embodiments, the controller 13 sends an opening signal and a closing signal to the RFID reader 11 through the server 2.

[0047] In this embodiment, as Figure 2 shown, the controller 13 sends an opening signal and a closing signal to the RFID reader 11 through the server 2. The control components 10 are all connected to the server 2 together. Through the server 2, multiple control components 10 can be connected together, which is convenient for managing all the control components 10.

[0048] In some possible embodiments, the RFID reader 11 includes: a scanning module 112, configured to scan the model information carried on the RFID tag 42; an Ethernet module 114, connected to the scanning module 112; wherein, the Ethernet module 114 is connected to the server 2, configured to obtain an opening signal and a closing signal from the server 2, and control the opening and closing of the scanning module 112 based on the opening signal and the closing signal.

[0049] In this embodiment, as Figure 4As shown, the RFID reader / writer 11 includes a scanning module 112 and an Ethernet module 114. Among them, the scanning module 112 can scan the model information carried on the RFID tag 42, and the Ethernet module 114 is connected to the scanning module 112. The user can control the operation of the RFID reader / writer 11 by disconnecting or connecting the Ethernet module 114. For example, in a working scenario, the user controls the RFID reader / writer 11 to connect to the network, thereby controlling the normal operation of the scanning module 112, and further reading the model information on the RFID tag 42. That is, the user can independently control the operation of the RFID reader / writer 11. By reasonably arranging the usage time of the RFID reader / writer 11, the service life of the RFID reader / writer 11 is further improved.

[0050] In some possible embodiments, the RFID reader / writer control system 1 further includes: a communication module 15, which is arranged on the RFID reader / writer 11 and is used for communication between the controller 13 and the RFID reader / writer 11, and is used to receive the start signal and the stop signal from the controller 13 and send them to the RFID reader / writer 11; the communication module 15 includes one or a combination of the following: a WiFi module 152, a Bluetooth module 154, and a 5G module 156.

[0051] In this embodiment, as Figure 3 shown, the RFID reader / writer control system 1 further includes: a communication module 15, which is arranged on the RFID reader / writer 11 and is used for communication between the controller 13 and the RFID reader / writer 11, and is used to receive the start signal and the stop signal from the controller 13 and send them to the RFID reader / writer 11; the communication module 15 includes one or a combination of the following: a WiFi module 152, a Bluetooth module 154, and a 5G module 156, so as to achieve convenient communication without laying cables and reduce the safety hazards caused by cables.

[0052] In some possible embodiments, the sensor 12 is one or a combination of the following: a position sensor 122, a light sensor 124, and a weight sensor 126.

[0053] In this embodiment, the sensor 12 includes at least one of a position sensor 122, a light sensing sensor 124, and a weight sensor 126. Among them, the position sensor 122 can detect the position of the object to be inspected. When the distance between the object to be inspected and the position sensor 122 reaches a threshold value, the position sensor 122 issues a detection result. The light sensing sensor 124 can sense the change of light, and by sensing the change of light, it determines whether there is an object to be inspected within the detection range of the RFID reader 11. The weight sensor 126 is disposed on the workbench 30. When an object to be inspected is placed on the workbench 30, the weight sensor 126 will detect a change in weight and thus issue a detection result. This solution can use at least one of the position sensor 122, the light sensing sensor 124, and the weight sensor 126 to determine whether there is an object to be inspected within the detection range of the RFID reader 11, so as to judge whether to issue a detection result to activate the RFID reader 11.

[0054] In some possible embodiments, the RFID reader control system 1 further includes: a manual switch 16, connected to the controller 13, and the controller 13 can generate an on signal or an off signal according to the state of the manual switch 16.

[0055] In this embodiment, as Figure 5 and Figure 6 shown, the RFID reader control system 1 further includes: a manual switch 16, connected to the controller 13, and the controller 13 can generate an on signal or an off signal according to the state of the manual switch 16. The manual switch 16 serves as an emergency switch and can manually turn on or off the RFID reader 11.

[0056] In one embodiment, the present utility model defines a sensor-based RFID reader system, which mainly includes an RFID tag 42, a sensor 12, an RFID reader 11, a cloud server, and a controller 13. The sensor mainly includes an optoelectronic module, and the converter 14 is an IO module 142; the RFID reader 11 mainly includes a scanning module 112 and an Ethernet module 114. Compared with the related art, after the sensor-based RFID reader control system 1 of the present utility model identifies that the workpiece is placed in the specified position through the optoelectronic module inside the sensor 12, it scans the workpiece to obtain an optoelectronic signal, and transmits the optoelectronic signal to the controller 13 through the IO module 142. The controller 13 processes the optoelectronic signal to obtain a network signal, and then sends the network signal to the cloud server. The cloud server queries the binding relationship between the RFID reader 11 and the sensor 12 according to the network signal, queries the specified RFID reader 11 according to the binding relationship, and sends a target signal to the specified RFID reader 11. The target signal controls the start and stop of the RFID reader 11 through the Ethernet module 114 of the RFID reader 11. When the RFID reader 11 receives the start signal, it turns on the scanning module 112 to perform an Ethernet scan on the RFID tag 42. In this way, the sensor 12 controls the opening and closing of the RFID reader 11, enabling the RFID reader 11 to automatically collect the RFID tag 42 without being in a constant identification mode, thereby improving the service life of the RFID reader 11. It reduces manual working hours, has high reliability, extends the service life cycle of the equipment, and reduces the maintenance cost. By controlling the opening and closing of the RFID reader 11 through the sensor 12, the RFID reader 11 can automatically collect the RFID tag 42 without being in a constant identification mode, thereby improving the service life of the RFID reader 11. The sensor 12 adopts an optoelectronic diffuse reflection mode and is connected to the IO controller, ensuring the reading accuracy and simplifying the process operation actions, and thus can achieve the purpose of accurately controlling the start and stop of the reader. The RFID reader 11 is connected to the Ethernet module 114, can receive the command signal from the cloud server to perform scanning start and stop, does not need to use a constant scanning mode, can increase the service life of the equipment; does not require manual control, can save the manual operation cost, and can also achieve automatic control, improving the control efficiency of the system.

[0057] According to the second aspect of the present utility model, a welding robot system 3 is further proposed, including: a workbench 30 for placing a workpiece 4; an RFID tag 42 provided on the workpiece 4, and the RFID tag 42 carries model information corresponding to the workpiece 4; the sensor-based RFID reader control system 1 proposed in any of the above technical solutions.

[0058] In this embodiment, as Figure 5As shown, the welding robot system 3 includes a workbench 30 for placing the workpiece 4. An RFID tag 42 is provided on the workpiece 4. The sensor-based RFID reader control system 1 can identify the RFID tag 42 on the workpiece 4, enabling the RFID reader to be turned on for a short time only, greatly increasing the service life of the RFID reader 11. At the same time, the sensor 12 can automatically identify the object to be inspected, thus reducing manual intervention and realizing complete pipeline control.

[0059] In some possible embodiments, the welding robot system 3 further includes: a process parameter system 32 and a welding robot assembly 34; the process parameter system 32 includes: a database 322 storing the model information and welding parameters of the workpiece 4; a matching module 324 for matching the welding parameters corresponding to the model information according to the database 322 and outputting the welding parameters; the welding robot assembly 34 includes: a robotic arm 342 for picking up and welding the workpiece 4; a control module 344 for receiving the welding parameters and adjusting the operating parameters of the robotic arm 342 according to the welding parameters.

[0060] In this embodiment, the process parameter system 32 includes a database 322 and a matching module 324. Among them, the database 322 stores the model information and welding parameters of the workpiece 4, and there is a corresponding relationship between the model information of the workpiece 4 and the welding parameters. The matching module 324 can match the welding parameters corresponding to the model information according to the database 322 and output the welding parameters. That is, after receiving the model information, the process parameter system 32 matches the welding parameters corresponding to the model information in the database 322 through the matching module 324, and sends the obtained welding parameters to the welding robot assembly 34. The process parameter system 32 can complete the conversion of model information and welding parameters, realizing the full-automatic control of the welding robot system 3. The welding robot assembly 34 includes a robotic arm 342 and a control module 344. The robotic arm 342 can pick up and weld the workpiece 4, and the control module 344 can receive the welding parameters and adjust the operating parameters of the robotic arm 342 according to the welding parameters. That is to say, after the control module 344 receives the welding parameters, it can control the operating parameters of the robotic arm 342 according to the welding parameters, that is, automatically adjust the operating parameters of the robotic arm 342 according to the welding parameters, ensuring that the welding robot assembly 34 can weld workpieces 4 of different models and specifications without manual adjustment, enhancing the applicability of the welding robot system 3.

[0061] In some possible embodiments, the RFID tag 42 includes an RFID nickel-cobalt tag.

[0062] In this embodiment, the RFID tag 42 includes an RFID nickel-cobalt tag. That is to say, the RFID tag 42 is made of a nickel-cobalt material that can withstand high temperatures. Generally, the temperature in the welding workshop is relatively high, and the RFID tag 42 is attached to the workpiece 4. The temperature of the workpiece 4 is even higher during the welding process. RFID tags 42 made of general materials are easily damaged by high temperatures. Therefore, using RFID nickel-cobalt tags can greatly improve the stability of the tags to ensure that the welding robot system 3 can operate automatically.

[0063] In some possible embodiments, the RFID tag 42 includes: a base layer and a covering layer, which are oppositely arranged; an interlayer, which is arranged between the base layer and the covering layer; and a radio frequency circuit, which is arranged in the interlayer.

[0064] In this embodiment, the RFID tag 42 includes a base layer, a covering layer and an interlayer. Among them, the base layer and the covering layer are oppositely arranged, the interlayer is arranged between the base layer and the covering layer, and the radio frequency circuit is arranged in the interlayer. That is to say, the RFID tag 42 has a multi-layer structure. The radio frequency circuit is not exposed outside the RFID tag 42, but exists inside the RFID tag 42. On the one hand, the base layer and the covering layer play a role in physically protecting the radio frequency circuit. On the other hand, the radio frequency circuit is arranged in the interlayer, which can also improve the flatness of the RFID tag 42.

[0065] In addition, in the present utility model, descriptions such as "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first", "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0066] In the present utility model, unless otherwise clearly specified and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0067] In addition, the technical solutions between various embodiments of the present utility model can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions conflicts with each other or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0068] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, various modifications and variations can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A sensor-based RFID reader control system, characterized in that: For a welding robot system, the RFID reader control system includes at least one control component and a server, the control component is connected to the server, and the control component includes: RFID reader / writer, used to read the RFID tag on the object to be inspected; A sensor connected to the RFID reader / writer, and used to detect whether the object to be detected is within the reading range of the RFID reader / writer; A controller, connected to the sensor and the RFID reader / writer, capable of generating an on signal or a off signal according to the detection result of the sensor and sending the signal to the RFID reader / writer; The controller is used to generate and send an opening signal after receiving the detection result, and the controller can also generate a closing signal; Wherein, the RFID reader can be turned on upon receiving the turn-on signal or can be stopped upon receiving the turn-off signal; The control components also include: A converter, one end of which is connected to the sensor, and the other end of which is connected to the controller, and the converter is used to convert the signal sent by the sensor into a signal that can be recognized by the controller; The converter includes an IO module; The sensor includes one of the following or a combination thereof: a position sensor, a light sensor, and a weight sensor; the controller sends the opening signal and the closing signal to the RFID reader through the server; The RFID reader / writer comprises: A scanning module, used for scanning the model information carried on the RFID tag; An Ethernet module, connected to the scanning module; The Ethernet module is connected to the server, and is used to obtain the start signal and the stop signal from the server, and control the start and stop of the scanning module based on the start signal and the stop signal; The sensor-based RFID reader-writer control system also includes: A communication module, arranged on the RFID reader / writer, used for communication between the controller and the RFID reader / writer, and used for receiving the opening signal and the closing signal from the controller and sending them to the RFID reader / writer; The communication module includes one or a combination of the following: a WiFi module, a Bluetooth module, and a 5G module; The sensor-based RFID reader-writer control system also includes: A manual switch connected to the controller, wherein the controller can generate the on signal or the off signal according to the state of the manual switch; The RFID tag includes an RFID nickel-cobalt tag.

2. A welding robot system, characterized in that: include: A workbench, used to hold workpieces; An RFID tag is disposed on the workpiece, and the RFID tag carries model information corresponding to the workpiece; and The sensor-based RFID reader-writer control system as claimed in claim 1.

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