Irradiation processing visual code scanning intelligent device and control method thereof

Abstract

The invention discloses a visual code scanning intelligent system for irradiation processing, relates to the technical field of irradiation processing automatic control, and solves the problems of high manual intervention degree, low detection precision, poor flow linkage and the like in the existing irradiation processing. The system comprises a hardware execution module, a control module and an information display module, the hardware execution module comprises a multi-station code reader, an area-array camera assembly, a laser code carving machine and the like, and information collection and execution control are achieved. The control module carries a visual industrial personal computer and an algorithm platform to complete data processing, process matching and exception handling; and the information display module realizes production state visualization and manual interaction. A multi-station visual code scanning and area-array camera detection combined structure is adopted, manual operation is replaced, and the detection precision is improved; through linkage of a linear speed encoder and a control module, the problem of material positioning in an irradiation area is solved. Various exception handling mechanisms are integrated, and production stability is guaranteed; the modular design adapts to multiple scenes, and can be widely applied to irradiation processing of food and medical equipment.

Description

Technical Field

[0001] This invention relates to the field of irradiation technology, specifically to an intelligent visual scanning device for irradiation processing and its control method. Background Technology

[0002] In the field of irradiation processing, such as disinfection and sterilization in the short-shelf-life food industry and sterilization of medical devices, traditional production processes rely on manual labor for key operations such as tray positioning, process parameter verification, and material status detection, which has many technical shortcomings. 1. Manual tray information identification is inefficient and prone to errors in process parameter matching due to visual fatigue, affecting irradiation effects; for example, excessive dosage may damage product quality, while insufficient dosage may fail to meet sterilization standards. 2. During material processing, it is difficult to determine in real time whether materials exceed the tray's range, require flipping, or need unloading, as automated detection methods are lacking. 3. The irradiation area is a special environment where electronic equipment cannot be directly deployed, making it difficult to distinguish material processing stages and achieve precise process linkage. 4. Problems such as abnormal line stoppages, tray jams, missed scanning of tray-product binding, and poor tray type switching recognition are prone to occur during production; traditional manual handling is slow and prone to errors. 5. The lack of a unified information visualization management platform means that production status, process parameters, and alarm information cannot be synchronized in real time, hindering production process traceability and control. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an intelligent device for visual scanning of irradiation processing and its control method, which addresses the shortcomings of the prior art.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: An intelligent visual barcode scanning device for irradiation processing includes a transmission line. A hardware execution module, a control module, and an information display module are installed on the transmission line. The hardware execution module includes a barcode reader at the loading station, a barcode reader at the unloading station, an area array camera assembly, a laser marking machine, a line speed encoder, an infrared sensor, and a transmission line control unit. The loading and unloading barcode readers are respectively located in the loading and unloading areas of the transmission line. An infrared sensor is installed on one side of each of the loading and unloading barcode readers. The laser marking machine is installed at the front end of the transmission line. The area array camera assembly, the line speed encoder, and the transmission line control unit are all installed on the transmission line. The control module includes a vision industrial control computer and a built-in vision algorithm platform. The information display module includes a display and a touch screen.

[0005] Furthermore, the barcode readers at the loading and unloading stations have a resolution of 1280×1024 and a working distance of 200±10mm.

[0006] Furthermore, the area array camera assembly includes two high-definition pixel area array cameras, equipped with focal length lenses and bar light sources, and the two high-definition pixel area array cameras are installed above the material conveying path.

[0007] Furthermore, the infrared sensor is model GL6 P1211.

[0008] Furthermore, the linear speed encoder model is E6B2-CWZ5B 2000P / R.

[0009] Furthermore, the vision industrial control computer is model MV-IPC-F477Q, and the vision algorithm platform is the VM algorithm development platform.

[0010] Furthermore, it also includes auxiliary components, including a light source controller, a 10GigE data acquisition card, a handheld barcode scanner, and a three-color alarm light.

[0011] Furthermore, the 10GigE acquisition card model is MV-GS1000.

[0012] A control method for an intelligent visual barcode scanning device for irradiation processing includes the following steps: S1: Manually place materials on a tray, select the product number via touch screen, the laser marking machine marks the laser code on the tray, the barcode reader at the loading station scans the laser code, binds it with the product information and uploads it to the control module; S2: The control module calculates the number and intensity of irradiation wheels based on the process parameters in the product file, and simultaneously calculates the material position and the time to reach the irradiation zone in real time through the speed data collected by the linear speed encoder. S3: The area scan camera component acquires images of the pallet during transmission. The vision algorithm platform analyzes the images to determine whether the material exceeds the pallet's range. If it does, a three-color alarm is triggered. S4: After the material is irradiated, it is transferred to the unloading area. The barcode reader at the unloading station scans the product's QR code. After receiving the information, the control module determines whether to unload the material. If it needs to be flipped, it sends a command to the transmission line control unit to return the material to the irradiation area.

[0013] Compared with the prior art, the irradiation processing visual scanning intelligent device and its control method of the present invention have the following beneficial effects: 1. The system adopts a combination of multi-station visual barcode scanning and area scan camera detection to replace manual pallet binding and material status detection, thereby reducing manual intervention, minimizing operational errors, and improving detection accuracy. 2. By linking the linear speed encoder with the control module, the problem of material positioning caused by the inability to deploy electronic equipment in the irradiation area is solved, and accurate judgment is achieved in the process stage. 3. The information display module enables visualization of the production process, facilitating real-time monitoring and traceability, while simplifying manual operation procedures and improving production efficiency; 4. The hardware components adopt a modular design, which can adapt to different materials and tray types, and has strong compatibility. It can be widely used in irradiation processing scenarios such as food and medical equipment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention; Among them, 1. Transmission line, 2. Loading station barcode reader, 3. Unloading station barcode reader, 4. Area array camera assembly, 5. Laser marking machine, 6. Line speed encoder, 7. Infrared sensor, 8. Transmission line control unit, 9. Vision industrial control computer, 10. Display, 11. Touch screen. Detailed Implementation

[0015] The technical solutions in the embodiments of the present invention will be clearly and completely described below.

[0016] like Figure 1 As shown, an intelligent visual barcode scanning device for irradiation processing includes a transmission line 1. The transmission line 1 is equipped with a hardware execution module, a control module, and an information display module. The hardware execution module includes a loading station barcode reader 2, a unloading station barcode reader 3, an area array camera assembly 4, a laser engraving machine 5, a line speed encoder 6, an infrared sensor 7, and a transmission line control unit 8. The loading station barcode reader 2 and the unloading station barcode reader 3 are respectively located in the loading and unloading areas of the transmission line 1, perpendicular to the trays on the conveyor line 1. The loading station barcode reader 2 and the unloading station barcode reader 3 have a resolution of 1280×1024 and a working distance of 200±10mm, used for recognizing QR codes. An infrared sensor 7, model GL6 P1211, is equipped on one side of each loading station barcode reader 2 and the unloading station barcode reader 3 to detect whether the material is in place and prevent missed scanning.

[0017] The laser marking machine 5 is installed at the front end of the transmission line and is used to mark a unique laser code on the surface of the pallet, providing an identification basis for binding the pallet and the materials.

[0018] The area array camera assembly 4 is installed on the transmission line 1. In this embodiment, the area array camera assembly includes two 25-megapixel high-definition area array cameras, equipped with 12mm focal length lenses and strip light sources. It is installed above the material transmission path at a 30-degree angle on four sides, with a working distance of 502±10mm, and is used to collect images of the pallet edge to detect whether the material exceeds the pallet range.

[0019] The linear speed encoder 6 and the transmission line control unit 8 are both installed on the transmission line 1. The linear speed encoder is model E6B2-CWZ5B 2000P / R, which is used to collect transmission line speed data in real time, communicate with the control module, receive speed adjustment commands, and realize the start and stop of the transmission line and speed adjustment.

[0020] The control module includes a vision industrial control computer 9 and a built-in vision algorithm platform. The vision industrial control computer 9 is model MV-IPC-F477Q, and the vision algorithm platform is a VM algorithm development platform. The control module is configured with a product file management unit, a data processing unit, an exception handling unit, and a communication unit. The product file management unit pre-stores irradiation process parameters for various materials, such as irradiation dose, number of rounds, and transmission speed. The data processing unit receives signals from the loading / unloading barcode reader, area scan camera, and line speed encoder, calculates the material position and determines the process stage through algorithms, and outputs control commands. The exception handling unit triggers corresponding processing mechanisms for scenarios such as abnormal line stoppage, tray jamming, missed scanning, and tray switching. The communication unit adopts an IO / serial communication protocol to realize data interaction with the hardware execution module and the information display module.

[0021] The information display module includes a display 10 and a touch screen 11. The display 10 displays production process steps, material details, and alarm information in real time, while the touch screen 11 is used for manual selection of product numbers, confirmation of binding information, and manual operation intervention.

[0022] The device also includes auxiliary components, including a light source controller, a 10GigE acquisition card, a handheld barcode scanner, and a three-color alarm light. The light source controller is compatible with a bar light source and adjusts the illumination intensity. The 10GigE acquisition card, model MV-GS1000, enables high-speed transmission of image data. The handheld barcode scanner is used for manual binding in case of missed scans. The three-color alarm light is used to indicate an alarm. Example

[0023] Check the hardware equipment and enter the process parameters for three typical materials in the product file management unit: chilled fresh meat, pre-cooked vegetables, and disposable syringes. The process parameters are as follows: chilled fresh meat: irradiation dose 3 kGy, number of wheels 2, transmission speed 0.5 m / s; pre-cooked vegetables: irradiation dose 5 kGy, number of wheels 1, transmission speed 0.3 m / s; syringes: irradiation dose 8 kGy, number of wheels 3, transmission speed 0.2 m / s. Then, set the abnormal handling thresholds: the abnormal stop time is 10 seconds, and the missed scan alarm delay time is 3 seconds. Configure the detection parameters of the vision algorithm platform: the criterion for material exceeding the tray is that the material edge exceeds the tray edge by ≥5 mm, and the character recognition rate threshold for barcode scanning is set to 95%.

[0024] As the conveyor line operates, operators place chilled meat materials on metal trays and select the "chilled meat" product number via a touchscreen. A laser marking machine engraves a laser code on the side of the tray. The code reader 2 at the loading station scans the laser code, binds it to the chilled meat product information, and uploads it to the vision control computer. The vision control computer retrieves the process parameters from the product file, calculates the number of irradiation rounds (2) and the irradiation intensity (3 kGy), and simultaneously, the linear speed encoder collects the transmission line speed in real time, estimating the material's arrival time in the irradiation area to be 20 seconds. When the material reaches the area of ​​the area array camera component, the camera captures an image of the tray. The vision algorithm platform analyzes the image and determines that the material has not exceeded the tray's capacity, allowing the conveyor line to continue feeding the material into the irradiation area. After completing two rounds of irradiation, the material is transferred to the unloading area, where the code reader 3 at the unloading station scans it. After receiving the product's QR code, the vision control computer determines that the material meets the feeding conditions and sends a command to the transmission line control unit. The transmission line then delivers the material to the feeding port. If the transmission line suddenly stops during operation, the fault handling unit immediately stops adjusting the irradiation parameters and performing visual inspection. The three-color red light illuminates and a buzzer sounds, a pop-up window on the display displays "Transmission line abnormal stop," and a voice broadcast announces the fault information. The offline scanning station records the laser code and material information of the current pallet for easy troubleshooting and production resumption. If the barcode reader fails to scan the pallet's laser code during feeding (i.e., the infrared sensor detects the material but does not receive a scanning signal), the system triggers a missed scan alarm, and the display prompts "Please manually bind." The operator uses a handheld barcode scanner to scan the pallet's laser code, completes the supplementary binding, and production continues.

[0025] When it is necessary to switch processing materials, the operator places an empty pallet with a switching mark on the conveyor line. After the area scan camera component recognizes the switching mark, it sends a signal to the control module. The control module retrieves the process parameters of the next product from the product file and automatically updates the line parameters such as irradiation dose and transmission speed, thus completing the synchronous switching of the pallet and process.

[0026] This invention is not limited to the embodiments described. Those skilled in the art can make some modifications or changes without departing from the spirit and scope of this invention. Therefore, the scope of protection of this invention is defined by the claims.

Claims

1. A visual barcode scanning intelligent device for irradiation processing, characterized in that: The system includes a transmission line, on which a hardware execution module, a control module, and an information display module are installed. The hardware execution module includes a barcode reader at the loading station, a barcode reader at the unloading station, an area array camera assembly, a laser marking machine, a line speed encoder, an infrared sensor, and a transmission line control unit. The barcode readers at the loading and unloading stations are respectively located in the loading and unloading areas of the transmission line. An infrared sensor is provided on one side of each barcode reader at the loading and unloading stations. The laser marking machine is installed at the front end of the transmission line. The area array camera assembly, the line speed encoder, and the transmission line control unit are all installed on the transmission line. The control module includes a vision industrial control computer and a built-in vision algorithm platform. The information display module includes a display and a touch screen. 2.The irradiation processing visual scanning code intelligent device according to claim 1, characterized in that: The barcode readers at the loading and unloading stations have a resolution of 1280×1024 and a working distance of 200±10mm. 3.The irradiation processing visual scanning code intelligent device according to claim 1, characterized in that: The area array camera assembly includes two high-definition pixel area array cameras, equipped with focal length lenses and bar light sources, and the two high-definition pixel area array cameras are installed above the material conveying path. 4.The irradiation processing visual scanning code intelligent device according to claim 1, wherein: The infrared sensor is model GL6 P1211.

5. The visual scanning code intelligent device for irradiation processing according to claim 1, characterized in that: The linear encoder model is E6B2-CWZ5B 2000P / R. 6.The irradiation processing visual scanning code intelligent device according to claim 1, wherein: The vision industrial control computer is model MV-IPC-F477Q, and the vision algorithm platform is the VM algorithm development platform. 7.The irradiation processing visual scanning code intelligent device according to claim 1, wherein: It also includes auxiliary components, including a light source controller, a 10GigE data acquisition card, a handheld barcode scanner, and a three-color alarm light. 8.The irradiation processing visual scanning code intelligent device according to claim 7, characterized in that: The 10GigE acquisition card is model MV-GS1000.

9. The control method of the visual scanning code intelligent device for radiation processing according to any one of claims 1-8, characterized in that: Includes the following steps, S1: Manually place materials on a pallet, select the product number via touch screen, the laser marking machine marks the pallet with a laser code, the barcode reader at the loading station scans the laser code, binds it with the product information and uploads it to the control module; S2: The control module calculates the number and intensity of irradiation wheels based on the process parameters in the product file, and simultaneously calculates the material position and the time to reach the irradiation zone in real time through the speed data collected by the linear speed encoder. S3: The area scan camera component acquires images of the pallet during transmission. The vision algorithm platform analyzes the images to determine whether the material exceeds the pallet's range. If it does, a three-color alarm is triggered. S4: After the material is irradiated, it is transferred to the unloading area. The barcode reader at the unloading station scans the product's QR code. After receiving the information, the control module determines whether to unload the material. If it needs to be flipped, it sends a command to the transmission line control unit to return the material to the irradiation area.

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