The measurement and coding system runs through all links of the whole product industry chain. Through low-cost production line transformation, the product is given a unique identity code and bound with product information, and multi-level closed-loop association is carried out, such as single product-box-consignment data. Through weighing and PDA scanning code when warehousing, agent/distributor receiving code scanning, terminal store receiving code scanning, traceability/anti-counterfeiting scanning code after purchase by consumers, market inspectors scanning code and other behaviors, we can judge whether the products are in the process of goods smuggling. If there is any goods smuggling, the system will send early warning information to enterprise managers in time to facilitate timely market decision-making.
020-34563445Description of overall architecture of weighing and coding system
The overall structure of the Weighing system includes: laser coding, automatic weighing production line data acquisition, digital coding associated control system and system data center (including data interface server, data processing server and database server);
Label and laser coding instructions
According to the needs of enterprises, it is necessary to design one object and one code on the label:
1) Description of carton label design: marking function
The two-dimensional code includes: production date, product code, task order number and unique product number.
The specific label size and typesetting need to be negotiated by the end user.
2) After the product is filled and weighed, it is sent out by an automatic transmission line and flows through the transmission line of the laser engraving machine section to engrave the QR code on the side of the carton;
Description of the solution of automatic labeling and coding related control system in production line (coding system for short)
Description of system structure:
Industrial computer: responsible for the related data collection of Electronic scale production line, collecting, coding and scanning the related control system, and directly interacting with PLC controller; All the collected data are stored in the local hard disk.
PLC controller: mainly responsible for labeling (or laser coding), controlling code reading and rejecting;
Production line client: operator interactive interface, accepting production tasks, configuring code readers, setting parameters, etc.
Warehouse client: can obtain the data of industrial computer database, be responsible for warehouse management, and query all container codes associated with pallet codes; The associated data is exported in EXCEL format and provided to the outbound system.
Operation terminal: responsible for scanning the pallet code out of the warehouse.
Description of weighing, coding and scanning correlation system
The solution of coding associated control system for filling and weighing (filling into big box mode)
This system is managed by an industrial computer (server) for two identical production lines. Specific process description:
A product flows through the product transmission line after being filled by an automatic Filling machine;
B products are automatically coded on the side of the carton by an automatic laser engraving machine; (Using laser coding machine, it is necessary to ensure that the carton has a fixed pure background color at the laser coding position, which is suitable for the code reader to read the QR code information.)
C products are coded by laser, and the two-dimensional code (tracing logistics code) on the surface of the carton is triggered and collected by the fixed code reader, which will identify the two-dimensional code information and output the reading result IO signal to PLC as the basis of the rejection device; If duplicate codes appear or cannot be identified, they need to be eliminated.
D, when the number of products with code reading meets the number of one pallet, it is associated with pallet codes (each pallet has a fixed code, and reading is triggered by a fixed code reader), and the pallet code and all carton codes on this pallet form a one-to-many relationship and are stored in the database;
E code reader needs to transmit the two-dimensional code data read each time to the industrial computer, and the industrial computer compares whether the coding information meets the requirements and rules;
F warehouse client can access the data of the industrial computer (server) on site, and all product information on the pallet can be obtained by collecting the pallet code label barcode through the data collector during shipment.
Description of operation flow
1, preparation before work:
1.1) Manual appearance inspection: Before the product flows through the labeling machine, it is best for the inspector to inspect the appearance box of the product, so as to eliminate bumps, damages, etc., to ensure that there is no problem with the single product entering the production line, and to avoid the elimination of packaged products, which will affect the work efficiency.
1.2) Task list making: the system supports two ways to make task lists: entry and import. When making, the operator first logs into the background management system of the industrial computer, and then selects the right production mode.
Entry mode: Click the menu of "Task List Entry", then enter the corresponding task information and the distribution information of the production line, and then click "Save" to complete the task list entry.
1.3) Task list review: the operator opens the task list review interface and selects the task list to be produced. The field operator checks whether it is consistent with the actual production information, and if it is consistent, selects "Approved"; If they are inconsistent, enter the reason for not passing, and then click "Failed to Approve". Only the approved order can start production.
1.5) Check whether the preparation of hardware and materials is normal, automatically label the labels on the equipment, click the "Start Packaging" button of the control software when all the inspections pass, and cooperate with the labeling machine to label the products, scan and collect the labels and assign codes.
Fault-tolerant processing
In the automatic labeling, scanning, coding and weighing production line system, when there are various problems, the software design fault tolerance and operation treatment methods are based on the principle of minimizing the workload of workers and restoring the speed to maintain production efficiency;
When the product is wrong in code reading or the carton is damaged, the weighing system will automatically reject it, and the rejected products need to be re-coded, scanned, detected and data correlated.
Specification for abnormal situations and handling methods:
1. The weighing system crashes or loses power. After the industrial computer restarts the system, the weighing system automatically restores the pre-production settings, and then continues scanning, acquisition and laser engraving from the position when the power is cut off or crashed.
2. If a single box bar code cannot be scanned, the single bar code collector will directly reject it.
