RFID read-write error-proofing alarm system on vehicle production line

Abstract

The utility model relates to an RFID read-write mistake-proofing alarm system on a vehicle production line, and belongs to the field of vehicle production. The read-write error-proofing alarm system comprises a skid, a second RFID tag, a first RFID read-write head, a second RFID read-write head and a control system, a first RFID (Radio Frequency Identification) tag is arranged on the skid; the second RFID tag is used for being arranged on a vehicle on the skid; the first RFID read-write head is used for reading information of the first RFID tag or writing the information into the first RFID tag; the second RFID read-write head is used for reading the information of the second RFID tag or writing the information into the second RFID tag; and the control system is used for connecting and acquiring information read by the first RFID read-write head and the second RFID read-write head. And when the tag information is written in mistakenly, the control system can remind a worker, so that the worker can deal with the mistakenly-written tag information in time.

Description

Technical Field

[0001] The present application relates to the field of vehicle production, and in particular to an RFID reading and writing error prevention alarm system on a vehicle production line. Background Art

[0002] RFID technology has been widely adopted due to its advantages such as flexible scanning and identification distance, strong penetrability and barrier-free reading. Especially on vehicle production lines, RFID tags are widely used to record vehicle information.

[0003] However, in actual applications, RFID reading and writing failures may occur due to factors such as on-site environmental interference, human operating errors, and equipment abnormalities. It can be seen that RFID reading and writing failures are a common phenomenon in the production process.

[0004] During the vehicle production process, due to processing needs, the vehicles are placed on the skids in the early stages of production and transported on the production line. The vehicle tags are placed after the vehicles are processed and formed. At this time, the tag information in the skids needs to be written into the vehicle tags. However, during this process, RFID reading and writing may fail, resulting in the inability to successfully write the tag information in the skids into the corresponding vehicle tags.

[0005] When RFID reads and writes errors, it will affect the production process. However, there is currently no relevant error prevention method to effectively remind operators. Manual error troubleshooting is very laborious and inefficient. Therefore, it is necessary to design an error prevention system to solve this problem. Summary of the invention

[0006] The embodiment of the present application provides an RFID reading and writing error prevention alarm system on a vehicle production line to solve the problem in the related art that when an RFID reading and writing error occurs on a vehicle production line, the production personnel cannot be effectively reminded, thereby affecting the production process.

[0007] The embodiment of the present application provides an RFID read-write error prevention alarm system on a vehicle production line, comprising:

[0008] A sled, wherein a first RFID tag is disposed on the sled;

[0009] a second RFID tag, the second RFID tag being used to be disposed on a vehicle on the skid;

[0010] a first RFID read / write head, the first RFID read / write head being used to read information of the first RFID tag or write information into the first RFID tag;

[0011] a second RFID read / write head, the second RFID read / write head being used to read information of the second RFID tag or write information into the second RFID tag;

[0012] A control system is used to connect and obtain information read by the first RFID reader / writer head and the second RFID reader / writer head.

[0013] In some embodiments, a handheld terminal is further included, wherein the handheld terminal is connected to the control system and is used to receive an alarm signal transmitted by the control system.

[0014] In some embodiments, a track is provided at the bottom of the sled, and the sled is slidably connected to the track.

[0015] In some embodiments, the sled is connected to a sensor system, and the sensor system is used to monitor and control the moving speed and start / stop status of the sled.

[0016] In some embodiments, the sensor system includes a first proximity sensor for controlling the moving speed of the sled, and a second proximity sensor for controlling the start and stop state of the sled.

[0017] In some embodiments, a moving mechanism is connected to both the first RFID read / write head and the second RFID read / write head, and the moving mechanism includes a traveling wheel and a lifting arm.

[0018] In some embodiments, a CCD camera is also included. The CCD camera and the moving mechanism are both connected to the control system. The CCD camera is used to monitor the positions of the skid and the vehicle and transmit the position information to the control system. The control system is used to control the moving state of the moving mechanism.

[0019] In some embodiments, a photoelectric sensor is further included, wherein the photoelectric sensor is connected to the control system and is used to monitor whether the vehicle is on the skid.

[0020] In some embodiments, the handheld terminal is connected to the control system via a Bluetooth module.

[0021] In some embodiments, a control cabinet is further included, and the control system is arranged in the control cabinet.

[0022] The beneficial effects of the technical solution provided by this application include:

[0023] An embodiment of the present application provides an RFID reading and writing error prevention alarm system on a vehicle production line, including: a sled, a second RFID tag, a first RFID read / write head, a second RFID read / write head and a control system; the sled is provided with a first RFID tag; the second RFID tag is used to be set on a vehicle on the sled; the first RFID read / write head is used to read information of the first RFID tag or write information to the first RFID tag; the second RFID read / write head is used to read information of the second RFID tag or write information to the second RFID tag; the control system is used to connect and obtain information read by the first RFID read / write head and the second RFID read / write head.

[0024] In actual use, the vehicle is fixed on the sled and transported to the designated location by the sled. After that, the first RFID read / write head can read the first RFID tag on the sled, and through the control system, the tag information of the sled read by the first RFID read / write head is transmitted to the second RFID read / write head. After that, the second RFID read / write head can write the received tag information of the original sled to the second RFID tag on the vehicle to complete the writing of the tag information. During this period, the control system can compare the tag information with the tag queue information in the database, and analyze whether the tag information is located in the tag queue information in the database. If it is, it means that the information is correct and the writing of the tag information in the vehicle tag is completed. If it is not located therein, it means that the information is transmitted incorrectly, and the control system sends an alarm signal. When the second RFID tag information on the vehicle is written successfully, the control system controls the second RFID read / write head to read the information of the second RFID tag, and the control system can compare the written information with the information read by the first RFID read / write head to determine whether they are consistent. If the information is consistent, it means that the information is written correctly. If it is inconsistent, the control system sends an alarm signal to remind the staff, which can facilitate the staff to immediately deal with the incorrect reading and writing situation in a timely manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 A schematic diagram of the system layout provided in an embodiment of the present application.

[0027] Reference numerals:

[0028] 1. First proximity sensor; 2. Second proximity sensor; 3. First RFID read / write head; 4. First RFID tag; 5. Photoelectric sensor; 6. Second RFID read / write head; 7. Second RFID tag; 8. Vehicle; 9. Sled; 10. Control cabinet; 11. Track; 12. CCD camera. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0030] An embodiment of the present application provides an RFID reading and writing error prevention alarm system on a vehicle production line, which can solve the problem in the related art that when RFID reading and writing errors occur on the vehicle production line, production personnel cannot be effectively reminded, affecting the production process.

[0031] See also Figure 1 As shown, an embodiment of the present application provides an RFID reading and writing error prevention alarm system on a vehicle production line, including: a sled 9, a second RFID tag 7, a first RFID read / write head 3, a second RFID read / write head 6 and a control system; a first RFID tag 4 is arranged on the sled 9; the second RFID tag 7 is used to be arranged on a vehicle 8 on the sled 9; the first RFID read / write head 3 is used to read the information of the first RFID tag 4 or write the information into the first RFID tag 4; the second RFID read / write head 6 is used to read the information of the second RFID tag 7 or write the information into the second RFID tag 7; the control system is used to connect and obtain the information read by the first RFID read / write head 3 and the second RFID read / write head 6.

[0032] In actual use, the vehicle 8 is fixed on the sled 9 and transported to the designated position by the sled 9. After that, the first RFID reader / writer head 3 can read the first RFID tag 4 on the sled 9, and through the control system, the tag information of the sled read by the first RFID reader / writer head 3 is passed to the second RFID reader / writer head 6. Then, the second RFID reader / writer head 6 can write the received tag information of the original sled 9 to the second RFID tag 7 on the vehicle 8 to complete the writing of the tag information. During this period, the control system can compare the tag information with the tag queue information in the database to analyze whether the tag information is located in the tag queue information in the database. If it is, it means that the information is correct and the writing of the tag information in the vehicle 8 tag is completed. If it is not located there, it means that the information transmission is wrong and the control system sends an alarm signal. When the information of the second RFID tag 7 on the vehicle 8 is written successfully, the control system controls the second RFID read / write head 6 to read the information of the second RFID tag 7, and the control system can compare the written information with the information read by the first RFID read / write head 3 to determine whether they are consistent. If the information is consistent, it means that the information is written correctly. If it is inconsistent, the control system sends an alarm signal to remind the staff, which can facilitate the staff to immediately deal with the erroneous reading and writing situation in a timely manner.

[0033] In actual use, the control system includes a PLC controller, which can obtain the information read by the first RFID reader / writer head 3 and the second RFID reader / writer head 6, and can connect the first RFID reader / writer head 3 and the second RFID reader / writer head 6 to form a whole, so as to facilitate the comparison and judgment of information. In actual applications, the label queue information will be entered into the database in advance, that is, in actual production, there will be multiple skids 9. The system of the present application is intended to enter the label information on the skid 9 into the label information of the vehicle 8 corresponding to the skid 9, and the summary information of multiple skids 9 will be entered into the database in advance. When the first RFID reader / writer head 3 reads the first RFID tag 4 on the skid 9, and passes the label information of the skid read by the first RFID reader / writer head 3 to the second RFID reader / writer head 6 through the control system, the second RFID reader / writer head 6 can then write the received label information of the original skid 9 into the second RFID tag 7 on the vehicle 8 to complete the writing of the label information. During this period, the control system can compare the label information with the label queue information in the database, and query whether the label information entered into the vehicle 8 exists in the label queue information in the database. If so, it means that the information is entered correctly. If not, it means that the label information of the skid 9 has not been updated in time and needs to be corrected.

[0034] In some optional embodiments, a handheld terminal is also included, which is connected to the control system and is used to receive the alarm signal transmitted by the control system. The handheld terminal supports portable handheld devices such as mobile phones, tablets, smart watches, PDAs, etc. When the control system determines that the information is written incorrectly, it can send an alarm signal. The staff can receive the transmitted alarm signal through the handheld terminal, which can facilitate the staff to deal with the errors on the production line in a timely manner to prevent excessive impact on the production process. In some embodiments, the handheld terminal is connected to the control system via a Bluetooth module, which is easy to operate.

[0035] In some optional embodiments, a track 11 is provided at the bottom of the sled 9, and the sled 9 is slidably connected to the track 11. The sled passes through the track 11 to transport the vehicle 8 on the production line.

[0036] In some optional embodiments, the sled 9 is connected to a sensor system, which is used to monitor and control the moving speed and start / stop state of the sled 9. In some embodiments, the sensor system includes a first proximity sensor 1 for controlling the moving speed of the sled 9, and a second proximity sensor 2 for controlling the start / stop state of the sled 9. After the first proximity sensor 1 detects the sled 9, the sled 9 is controlled to start decelerating, and when the second proximity sensor 2 detects the sled 9, the sled 9 is controlled to stop, so that the sled 9 falls into a suitable designated position, which is convenient for reading the first RFID tag 4 on the sled 9.

[0037] In some optional embodiments, a mobile mechanism is connected to both the first RFID read / write head 3 and the second RFID read / write head 6, and the mobile mechanism includes a running wheel and a lifting arm. In some embodiments, a CCD camera 12 is also included, and the CCD camera 12 and the mobile mechanism are both connected to a control system. The CCD camera 12 is used to monitor the positions of the sled 9 and the vehicle 8, and transmit the position information to the control system, and the control system is used to control the moving state of the mobile mechanism.

[0038] In actual use, different models may be produced on the same production line, such as sedans, SUVs, 7-seater commercial vehicles, etc. The height and length of each model are different. Therefore, if the fixed position reading and writing method is used in the vehicle 8RFID reading and writing process, the signal strength of the RFID reading and writing head is not in the best state and cannot be well matched to different models. At the same time, the vehicle 8RFID tags are placed manually, and there is a certain range of deviation during the placement process of the staff.

[0039] Therefore, when the vehicle 8 is transported to the designated position by the sled 9, the first RFID read / write head 3 can read the first RFID tag 4 on the sled 9, and transmit the tag information of the sled read by the first RFID read / write head 3 to the second RFID read / write head 6 through the control system. The second RFID read / write head 6 can then write the received tag information of the original sled into the second RFID tag 7 on the vehicle 8 to complete the writing of the tag information. During this process, when the second RFID read / write head 6 writes the information into the second RFID tag 7 on the vehicle 8, in order to target different vehicle models, the CCD camera 12 is used to take a small range of mobile photos of the second RFID tag 7 on the vehicle 8. The CCD camera 12 takes multiple photos of the tag in the lateral movement to determine the tag position and transmit the position information to the control system. The control system controls the moving mechanism so that the moving mechanism adjusts the position of the second RFID read / write head 6, thereby facilitating the second RFID read / write head 6 to read the second RFID tag 7 on the vehicle 8.

[0040] In some optional embodiments, a photoelectric sensor 5 is further included, and the photoelectric sensor 5 is connected to the control system to monitor whether there is a vehicle 8 on the sled 9. When the photoelectric sensor 5 does not detect the presence of a vehicle 8 on the sled 9, a signal is sent through the control system to remind the production personnel to check and confirm. In some optional embodiments, the read-write error prevention alarm system also includes a control cabinet 10, and the control system is arranged in the control cabinet 10.

[0041] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0042] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0043] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. An RFID read-write error prevention alarm system on a vehicle production line, characterized in that: include: A sled (9), wherein a first RFID tag (4) is arranged on the sled (9); a second RFID tag (7), the second RFID tag (7) being used to be arranged on a vehicle (8) on the skid (9); A first RFID read / write head (3), the first RFID read / write head (3) being used to read information from the first RFID tag (4) or write information into the first RFID tag (4); A second RFID read / write head (6), the second RFID read / write head (6) being used to read information from the second RFID tag (7) or write information into the second RFID tag (7); A control system, wherein the control system is used to connect and obtain information read by the first RFID read / write head (3) and the second RFID read / write head (6).

2. The RFID read-write error prevention alarm system on a vehicle production line as claimed in claim 1, characterized in that: It also includes a handheld terminal, which is connected to the control system and is used to receive an alarm signal transmitted by the control system.

3. The RFID read-write error prevention alarm system on a vehicle production line as claimed in claim 1, characterized in that: A track (11) is provided at the bottom of the slide (9), and the slide (9) is slidably connected to the track (11).

4. The RFID read-write error prevention alarm system on a vehicle production line as claimed in claim 3, characterized in that: The sled (9) is connected to a sensor system, and the sensor system is used to monitor and control the moving speed and start / stop state of the sled (9).

5. The RFID read-write error prevention alarm system on a vehicle production line as claimed in claim 4, characterized in that: The sensor system comprises a first proximity sensor (1) for controlling the moving speed of the sled (9), and a second proximity sensor (2) for controlling the start and stop state of the sled (9).

6. The RFID read-write error prevention alarm system on a vehicle production line as claimed in claim 1, characterized in that: The first RFID read / write head (3) and the second RFID read / write head (6) are both connected to a moving mechanism, and the moving mechanism comprises a running wheel and a lifting arm.

7. The RFID read-write error prevention alarm system on a vehicle production line as claimed in claim 6, characterized in that: It also includes a CCD camera (12), wherein the CCD camera (12) and the moving mechanism are both connected to the control system, and the CCD camera (12) is used to monitor the positions of the sled (9) and the vehicle (8) and transmit the position information to the control system, and the control system is used to control the moving state of the moving mechanism.

8. The RFID read-write error prevention alarm system on a vehicle production line as claimed in claim 1, characterized in that: It also comprises a photoelectric sensor (5), which is connected to the control system and is used to monitor whether the vehicle (8) is on the skid (9).

9. The RFID read-write error prevention alarm system on a vehicle production line as claimed in claim 2, characterized in that: The handheld terminal is connected to the control system via a Bluetooth module.

10. The RFID read-write error prevention alarm system on a vehicle production line as claimed in claim 1, characterized in that: It also comprises a control cabinet (10), wherein the control system is arranged in the control cabinet (10).

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