Code scanning wrong material prevention method and system based on MES

Abstract

The invention discloses an MES-based code scanning material error prevention method and system, and the method comprises the steps: building a material station table in the MES, and recording a product code, a material code, a feeder specification, a production line code, an equipment number and a station number in the material station table; the PDA scans the two-dimensional code on the material to obtain the position information of the material; the MES updates a material station table according to the scanning result, and the updated material station table reflects the latest station position of the material; the PDA scans the material label and the station label, and checks whether a scanning result is matched with the material station table data or not; and if the scanning result is not matched with the material station table, the system sends out warning information to prompt an operator to check and provide error correction information. According to the method, the material station table is established and maintained in the MES, the PDA equipment is used for scanning the materials, accurate management of the materials is achieved, and the production efficiency and accuracy are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of electronic manufacturing, and relates to a code scanning and error-proofing method and system based on MES. Background Art

[0002] SMT (Surface Mount Technology) is a technology used in the field of electronic manufacturing to mount electronic components on the surface of a printed circuit board (PCB). With the rapid development of the electronics industry, SMT production lines have increasingly higher requirements for accuracy and efficiency in operations. In the traditional SMT production process, material management is a crucial link, which is directly related to the smooth operation of the production line and the quality of the final product.

[0003] In existing SMT production, material loading usually relies on manual operation. Operators need to select the corresponding materials from the warehouse according to the production plan and bill of materials, and place them in the correct position on the production line. However, due to the wide variety and large quantity of materials, as well as the urgency of production tasks, the manual management of materials has the following shortcomings, namely, manual operation is inevitably negligent, resulting in the wrong picking and placing of materials, which not only increases production costs, but may also cause product quality problems. In a production environment with a large number of materials, operators need to spend a lot of time to find and check material information, which greatly reduces production efficiency. Summary of the invention

[0004] The present invention provides a method and system for preventing wrong materials by scanning codes based on MES. By establishing and maintaining a material station table in MES and using a PDA device to scan materials, accurate material management can be achieved, thereby improving production efficiency and accuracy.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A method for preventing wrong material by scanning code based on MES, comprising the following steps:

[0007] A material station table is established in MES, and the material station table records product code, material code, feeder specification, production line code, equipment number and station number;

[0008] The PDA device scans the QR code on the material to obtain the material's location information;

[0009] MES updates the material station table based on the scanning results. The updated material station table reflects the latest location of the material.

[0010] The PDA device scans the material label and station label, and checks whether the scan result matches the material station table data;

[0011] If the scanned result does not match the material station table, the system will issue a warning message, prompting the operator to check and provide correction information.

[0012] Furthermore, the material station table is established in the MES, and the material station table records the product code, material code, feeder specification, production line code, equipment number and station number, and also includes:

[0013] Export the material delivery list of the current work order from the ERP system, including the material code, quantity, and preset station information of the delivered material;

[0014] Match the material code in the delivery list with the material code in the material station table to ensure that the code of each material is consistent;

[0015] Compare the preset station information in the material delivery list with the station information in the material station table;

[0016] If there is any inconsistency, MES will indicate an error and prevent the use of the material station table until the error is corrected.

[0017] Furthermore, the PDA scans the material label and the station label, and checks whether the scan result matches the material station table data, and further includes:

[0018] The PDA device scans the barcode or RFID tag on the feeder and reads the specification information of the feeder;

[0019] The read information is transmitted to MES via wireless network for matching and verification.

[0020] Furthermore, the transmitting of the read information to the MES via the wireless network for matching and verification also includes:

[0021] After receiving the feeder specification information, the MES retrieves the pre-stored records related to the feeder specifications in the database;

[0022] MES performs model matching verification based on pre-stored records to confirm whether the scanned feeder model is consistent with the model recorded in the system;

[0023] The system performs dimensional verification to check whether the feeder size is suitable for the intended station and material;

[0024] The system performs a component type check to verify that the feeder is suitable for the type of component to be loaded.

[0025] Furthermore, if the scan result does not match the material station table, the system issues a warning message to prompt the operator to check and correct the error, which also includes:

[0026] MES checks the feeder specifications based on the feeder specifications to see if they are consistent with those recorded in the material station table;

[0027] If the specifications are inconsistent, the MES will send an error message to the PDA device and provide information on the correct feeder or station adjustment.

[0028] Furthermore, if the scanned result does not match the material station table, the system issues a warning message to prompt the operator to check and provide error correction information, and also includes:

[0029] MES checks the feeder specifications based on the feeder specifications to see if they are consistent with those recorded in the material station table;

[0030] If the specifications are inconsistent, the MES will send an error message to the PDA device and provide information on the correct feeder or station adjustment.

[0031] Furthermore, if the specifications are inconsistent, the MES will send an error message to the PDA device and provide information on the correct feeder or adjustment of the station, and also include:

[0032] After the error is corrected, the PDA device rescans the material tag and station tag until the system confirms a match.

[0033] Furthermore, if the specifications are inconsistent, the MES will send an error message to the PDA device and provide information on the correct feeder or adjustment of the station, and also include:

[0034] If the scan result does not match the material station table again, the system will record the material as an abnormal material and generate an abnormal report.

[0035] A scanning code error prevention system based on MES, comprising:

[0036] The material station table establishment module is used to create and maintain a material station table that records product codes, material codes, feeder specifications, production line codes, equipment numbers, and station numbers;

[0037] The scanning module is integrated into the PDA device and is used to scan the QR code on the material to obtain the material's location information;

[0038] The information update module is used to update the material station table according to the PDA scanning results to reflect the latest station location of the material;

[0039] Verification module, used for PDA to scan material labels and station labels, and verify whether the scanning results match the material station table data;

[0040] Error warning module: when the scan result does not match the material station table, the system will issue a warning message to prompt the operator to check and provide correction information.

[0041] Beneficial effects of the present invention: The present invention realizes the automation and intelligence of material management through the scanning code to prevent wrong materials based on MES, and improves the accuracy of operations and production efficiency. By scanning the material QR code through PDA, the material station table is updated in real time to ensure the accuracy of material information. The automated verification process reduces human errors and improves the accuracy of material distribution. The warning information issued by the system helps to quickly discover and correct errors and avoid production interruptions. In addition, real-time data support makes production scheduling more flexible, enhances the stability of the production line, reduces material waste, improves product quality, realizes accurate material management, and improves production efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a schematic diagram of the structure of the present invention. DETAILED DESCRIPTION

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of the present invention; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of the present invention or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0044] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0045] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0046] The present invention provides Figure 1 In an embodiment of the present invention, a method for preventing wrong material by scanning a code based on MES includes the following steps:

[0047] A material station table is established in MES, and the material station table records product code, material code, feeder specification, production line code, equipment number and station number;

[0048] The PDA device scans the QR code on the material to obtain the material's location information;

[0049] MES updates the material station table based on the scanning results. The updated material station table reflects the latest location of the material.

[0050] The PDA device scans the material label and station label, and checks whether the scan result matches the material station table data;

[0051] If the scanned result does not match the material station table, the system will issue a warning message, prompting the operator to check and provide correction information.

[0052] This application establishes a material station table through the MES system, and records detailed information such as product code, material code, feeder specifications, production line code, equipment number and station number, which can ensure the accuracy and traceability of material information. The PDA scans the QR code on the material, obtains the material's station information, and updates the material station table in the MES system in real time, so that the latest station information of the material can be monitored and managed in real time. The automated scanning and verification process reduces the operator's human errors in the material identification and placement process, and improves the accuracy of the operation. Through the automated scanning and verification process, the operator's time consumption in finding material information and verifying station information is reduced, thereby improving the overall production efficiency. When the scanning result does not match the material station table, the system will automatically issue a warning message, so that the operator can respond quickly and take measures, reducing the production downtime caused by errors. By checking the material label and station label, ensure that the material is correctly delivered to the designated station to avoid errors caused by misplaced materials. The system records all scanning results and warning information, providing detailed data support for quality management, facilitating problem tracking and continuous improvement.

[0053] The material station table is established in the MES, and the material station table records the product code, material code, feeder specification, production line code, equipment number and station number, and also includes: exporting the material dispatch list of the current work order from the ERP system, including the material code, quantity, and preset station information of the dispatched material; matching the material code of the material dispatch list with the material code of the material station table to ensure that the code of each material is consistent; comparing the preset station of the material dispatch list with the station information in the material station table; if inconsistent, MES prompts an error and blocks the use of the material station table until the error is corrected. This application ensures the consistency of the material code by matching the material dispatch list in the ERP system with the material station table in the MES. This avoids the confusion of material management caused by data asynchrony and improves the accuracy of the data. By comparing the preset station of the material dispatch list with the station information in the material station table, it can ensure that the material is correctly placed in the predetermined position. This helps to reduce the situation of misplacement of materials and improve the accuracy of material distribution. If inconsistency is found, the MES system will prompt an error and block the use of the material station table until the error is corrected. This measure can prevent wrong materials from flowing into the production line, avoiding production interruptions or product quality problems that may be caused by this. The material delivery list is exported from the ERP system and automatically matched with the material station list in the MES, reducing the manual operation links, improving the level of automation, and reducing human errors. Through the automated verification process, problems can be quickly discovered and solved, thereby speeding up production scheduling, improving the responsiveness of the production line, ensuring the consistency of material codes and station information, and facilitating the traceability of material use in subsequent production processes, facilitating quality control and problem diagnosis.

[0054] The PDA scans the material label and the station label, and checks whether the scanning result matches the material station table data, and also includes: the PDA device scans the barcode or RFID tag on the feeder to read the specification information of the feeder; and transmits the read information to the MES through the wireless network for matching and verification. By scanning the material label and the station label by the PDA device, the information of the material and the station can be collected quickly and accurately, reducing the errors of manual input. After the PDA device reads the barcode or RFID tag on the feeder, it transmits the information to the MES system in real time through the wireless network, ensuring the real-time and accuracy of the data in the MES, and automatically matching and verifying the scanned feeder specification information with the pre-stored records in the MES, reducing the workload of manual verification and improving efficiency. If the scanning result does not match the material station table data, the system can immediately feedback the error information, thereby avoiding the wrong material from being used or placed in the wrong station.

[0055] The information read is transmitted to MES through a wireless network for matching and verification, and also includes: after MES receives the feeder specification information, it retrieves the pre-stored records related to the feeder specifications in the database; MES performs model matching verification based on the pre-stored records to confirm whether the scanned feeder model is consistent with the model recorded in the system; the system performs size verification to check whether the size of the feeder is suitable for the predetermined station and material; the system performs component type verification to verify whether the feeder is suitable for the component type to be loaded. In this embodiment, matching and verification ensure that the specifications of the feeder are completely matched with the component type to be loaded, thereby avoiding production interruptions or quality accidents caused by mismatched feeders. In addition, the automated matching and verification process improves the efficiency and accuracy of material management, reduces the workload of operators, and improves overall production efficiency and product quality. Through this method, the production line can achieve more intelligent and automated material management, improve the controllability and response speed of the production process, and ultimately enhance the market competitiveness of the enterprise.

[0056] If the scanned result does not match the material station table, the system will issue a warning message to prompt the operator to check and correct the error. It also includes: MES checks whether the specifications of the feeder are consistent with those recorded in the material station table based on the specification information of the feeder; if the specifications are inconsistent, MES will send an error prompt to the PDA device and provide the correct feeder or station adjustment information. The automated verification process reduces the placement errors caused by the operator's negligence and improves the response speed. When the specifications are inconsistent, the system can immediately prompt the error, and the operator can quickly take corrective measures to reduce production interruption time. This not only improves the efficiency of material management, but also enhances the stability of the production line, reduces material waste and production accidents, and thus reduces the overall production cost.

[0057] If the scanned result does not match the material station table, the system will issue a warning message to prompt the operator to check and provide error correction information, including:

[0058] MES checks the feeder specifications based on the feeder specifications to see if they are consistent with those recorded in the material station table;

[0059] If the specifications are inconsistent, MES will send an error prompt to the PDA device and provide information on the correct feeder or adjustment station. By implementing this technical solution, the automation and intelligence of material management is realized. When the scanning results do not match the material station table, the system can automatically issue a warning message, prompt the operator to check in time, and provide guidance on correcting the error information. This instant error detection and feedback mechanism significantly reduces production delays and material waste caused by operational errors. At the same time, the MES system automatically checks whether the specifications recorded in the feeder table are consistent with the specifications of the feeder based on the specification information of the feeder. If the specifications are inconsistent, MES will not only send an error prompt to the PDA device, but also provide information on the correct feeder or adjustment station, thereby ensuring the accuracy of material supply and the smooth operation of the production line.

[0060] If the specifications are inconsistent, the MES will send an error prompt to the PDA device and provide the correct feeder or station adjustment information, and also include: after the error is corrected, the PDA device rescans the material label and station label until the system confirms the match. When the specifications of the feeder are inconsistent with the records in the material station table in the MES system, the MES system will automatically send an error prompt to the PDA device and provide accurate feeder or station adjustment information to guide the operator to make corrections. After correcting the error, the operator uses the PDA device to rescan the material label and station label, and the system checks again until the match is confirmed. This process ensures the accuracy and timeliness of material management, avoids unmatched materials from entering the production line, and reduces the resulting production interruptions and quality risks. In addition, this closed-loop verification and confirmation mechanism improves the automation level of the production line, ensures the continuity and reliability of material supply, thereby improving the overall production efficiency and product quality, enhancing the company's ability to control the production process, and ensuring high-efficiency and low-cost production operations.

[0061] If the specifications are inconsistent, the MES will send an error message to the PDA device and provide information on the correct feeder or station adjustment, including:

[0062] If the re-scan result still does not match the material station table, the system will record the material as an abnormal material and generate an abnormal report. By implementing this technical solution, when the specification information of the feeder is inconsistent with the record of the material station table in the MES system, the MES system not only sends an error prompt to the PDA device and provides the correct feeder or adjustment station information, but also after the operator makes corrections according to the prompts, if the re-scan result still does not match the material station table, the system will automatically mark the material as abnormal and generate an abnormal report. This mechanism significantly improves the accuracy and response speed of material management, ensuring that only materials of the correct specifications can enter the production line, thereby avoiding possible production delays and product quality problems. At the same time, the function of automatically recording abnormal materials and generating reports provides valuable data support for management, helps to quickly locate the source of the problem, conduct root cause analysis and continuous improvement, reduce material waste and production costs, and improve the stability and efficiency of the production line.

[0063] A scanning code error prevention system based on MES, comprising:

[0064] The material station table establishment module is used to create and maintain a material station table that records product codes, material codes, feeder specifications, production line codes, equipment numbers, and station numbers;

[0065] The scanning module is integrated into the PDA device and is used to scan the QR code on the material to obtain the material's location information;

[0066] The information update module is used to update the material station table according to the PDA scanning results to reflect the latest station location of the material;

[0067] Verification module, used for PDA to scan material labels and station labels, and verify whether the scanning results match the material station table data;

[0068] Error warning module: when the scan result does not match the material station table, the system will issue a warning message to prompt the operator to check and provide correction information.

[0069] By implementing this technical solution, a scanning code error prevention system based on MES is established. The system creates and maintains a detailed material station table through the material station table establishment module, recording key information such as product code, material code, feeder specifications, production line code, equipment number and station number. The scanning module integrated in the system is installed in the PDA device to efficiently scan the QR code on the material and obtain the station information of the material in real time. The information update module dynamically updates the material station table according to the scanning results of the PDA to ensure that the information in the table reflects the latest station of the material. The verification module further scans the material label and station label through the PDA to verify the matching of the scanning result with the material station table information to ensure the correct placement of the material. When the scanning result does not match the material station table, the error warning module promptly issues a warning message to remind the operator to check and provide guidance on correcting the error information. This series of automated functions greatly improves the accuracy of material management and the convenience of operation, reduces human errors, and improves production efficiency and compliance of material use.

[0070] The invention is operational with numerous general purpose or special purpose computer system environments or configurations.

[0071] For example: personal computers, server computers, handheld or portable devices, tablet devices, multiprocessor systems, microprocessor-based systems, set-top boxes, programmable consumer electronics devices, network PCs, minicomputers, mainframe computers, distributed computing environments that include any of the above systems or devices, etc.

[0072] The invention may be described in the general context of computer-executable instructions, such as program modules, being executed by a computer.

[0073] Generally, program modules include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. The invention may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network.

[0074] In a distributed computing environment, program modules may be located in both local and remote computer storage media including memory storage devices.

[0075] Specifically, a person skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through computer-readable instructions, and the computer-readable instructions can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, the aforementioned storage medium can be a non-volatile storage medium such as a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

[0076] It should be understood that although the steps in the flowchart of the accompanying drawings are shown in sequence according to the instructions of the arrows, these steps are not necessarily performed in the order indicated by the arrows. Unless otherwise clearly stated in this document, the execution of these steps is not strictly limited in order and can be performed in other orders.

[0077] Moreover, at least part of the steps in the flowchart of the accompanying drawings may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily executed at the same time, but can be executed at different times. The order of execution is not necessarily sequential, but can be executed in turn or alternately with other steps or at least part of the sub-steps or stages of other steps.

[0078] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. The drawings provide preferred embodiments of the present invention, but do not limit the scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0079] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned specific embodiments, or replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the present invention's specification and drawings, directly or indirectly applied to other related technical fields, is also within the scope of patent protection of the present invention.

Claims

1. A method for preventing wrong material by scanning code based on MES, characterized in that: The following steps are involved: A material station table is established in MES, and the material station table records product code, material code, feeder specification, production line code, equipment number and station number; The PDA device scans the QR code on the material to obtain the material's location information; MES updates the material station table based on the scanning results. The updated material station table reflects the latest location of the material. The PDA device scans the material label and station label, and checks whether the scan result matches the material station table data; If the scanned result does not match the material station table, the system will issue a warning message, prompting the operator to check and provide correction information.

2. According to the MES-based code scanning and error-proofing method according to claim 1, it is characterized in that: The material station table is established in the MES, and the material station table records the product code, material code, feeder specification, production line code, equipment number and station number, and also includes: Export the material delivery list of the current work order from the ERP system, including the material code, quantity, and preset station information of the delivered material; Match the material code in the delivery list with the material code in the material station table to ensure that the code of each material is consistent; Compare the preset station information in the material delivery list with the station information in the material station table; If there is any inconsistency, MES will indicate an error and prevent the use of the material station table until the error is corrected.

3. The method for preventing wrong material by scanning code based on MES according to claim 1 is characterized in that: The PDA device scans the material label and the station label, and checks whether the scan result matches the material station table data, and also includes: The PDA device scans the barcode or RFID tag on the feeder and reads the specification information of the feeder; The read information is transmitted to MES via wireless network for matching and verification.

4. The method for preventing wrong material by scanning code based on MES according to claim 3 is characterized in that: The transmitting of the read information to the MES via the wireless network for matching and verification also includes: After receiving the feeder specification information, the MES retrieves the pre-stored records related to the feeder specifications in the database; MES performs model matching verification based on pre-stored records to confirm whether the scanned feeder model is consistent with the model recorded in the system; The system performs dimensional verification to check whether the feeder size is suitable for the intended station and material; The system performs a component type check to verify that the feeder is suitable for the type of component to be loaded.

5. The method for preventing wrong material by scanning code based on MES according to claim 4 is characterized in that: If the scanned result does not match the material station table, the system will issue a warning message to prompt the operator to check and correct the error, including: MES checks the feeder specifications based on the feeder specifications to see if they are consistent with those recorded in the material station table; If the specifications are inconsistent, the MES will send an error message to the PDA device and provide information on the correct feeder or station adjustment.

6. The method for preventing wrong material by scanning code based on MES according to claim 5 is characterized in that: If the scanned result does not match the material station table, the system will issue a warning message to prompt the operator to check and provide error correction information, including: MES checks the feeder specifications based on the feeder specifications to see if they are consistent with those recorded in the material station table; If the specifications are inconsistent, the MES will send an error message to the PDA device and provide information on the correct feeder or station adjustment.

7. The method for preventing wrong material by scanning code based on MES according to claim 6 is characterized in that: If the specifications are inconsistent, the MES will send an error message to the PDA device and provide information on the correct feeder or station adjustment, including: After the error is corrected, the PDA device rescans the material tag and station tag until the system confirms a match.

8. The method for preventing wrong material by scanning code based on MES according to claim 6 is characterized in that: If the specifications are inconsistent, the MES will send an error message to the PDA device and provide information on the correct feeder or station adjustment, including: If the scan result does not match the material station table again, the system will record the material as an abnormal material and generate an abnormal report.

9. A code scanning and error-proofing system based on MES, characterized in that: include: The material station table establishment module is used to create and maintain a material station table that records product codes, material codes, feeder specifications, production line codes, equipment numbers, and station numbers; The scanning module is integrated into the PDA device and is used to scan the QR code on the material to obtain the material's location information; The information update module is used to update the material station table according to the PDA scanning results to reflect the latest station location of the material; Verification module, used for PDA to scan material labels and station labels, and verify whether the scanning results match the material station table data; Error warning module: when the scan result does not match the material station table, the system will issue a warning message to prompt the operator to check and provide correction information.

Images