Application of Qualcomm Color Display Electronic Tag in Picking System of Automobile Production Line
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Generally, there are two ways to distribute parts in the automobile manufacturing industry. One is to distribute them directly to the assembly line by different parts suppliers; the other is to distribute them to a unified third-party logistics warehouse served by different parts suppliers. In the process, the third-party logistics will directly distribute to the side of the line. These two completely different distribution methods place higher requirements on employees beside the automobile assembly line; a computer-assisted picking system needs to be introduced to improve the efficiency of parts picking operations and reduce the error rate. Among them, the use of picking label system is an effective solution.
1. Disadvantages of traditional picking methods
In the production workshop of the automobile manufacturing industry. Due to the elimination of old models and the continuous introduction of new models, the types and status of parts are increasing rapidly. Under the premise of responding to the production cycle, the requirements for assembly workers are getting higher and higher. Therefore, the picking operation has become the top priority of the cycle control, and it is also the basis for the final assembly of the vehicle. The purpose of the picking operation is to gather the parts of the required car model correctly and within the production cycle. From this point of view, if you want to improve the efficiency of the vehicle assembly and reduce the error rate, starting from the improvement of the material picking operation, you can achieve a multiplier effect with half the effort.
At this stage, the traditional manual picking method according to work orders is still the part picking operation method of most automobile manufacturers in my country. Although manual material picking is guided by printed paper work orders, the operator is required to be very familiar with the different types of parts of each vehicle model and must be highly concentrated.
This will bring some unavoidable problems:
1. Waste a lot of waiting time, such as waiting for receipts to be printed, etc.;
2. The brain is in a state of tension for a long time. Picking errors in manufacturing parts will cause the entire vehicle to be scrapped or delay a lot of time to make corrections. Therefore, companies have extremely high requirements for the accuracy of employee picking, and usually penalties are used to avoid errors;
3. Rely on skilled workers. Because on-site picking has production cycle requirements, it has higher requirements for skilled workers. If unskilled operators are replaced, the picking accuracy and speed must not meet the production speed of the production line;
4. High error rate. According to statistics, for every 2()0 parts picked by field operators, it is possible to pick the wrong part or miss one part. Therefore, the phenomenon of wrong picking and missed picking often occurs;
5. The picking efficiency is low. Since the operators work according to the paper documents, the work efficiency is low. In order to meet the speed of the production line, the enterprise needs to spend a lot of labor to perform simple picking operations, which greatly increases the cost of the enterprise.
In this case, some automated and semi-automated technical equipment has been gradually developed and applied to the picking system to effectively improve productivity.
2. Advantages of picking electronic label assisted picking system
The picking label system uses the picking label to represent each material location and is used in conjunction with the production management system. To put it simply, the production management system issues detailed instructions for picking materials, and the picking label system automatically lights up the picking labels corresponding to the positions that need to be operated according to the instruction information, and displays the number of items to be picked on the picking labels, and picking The personnel can complete the picking operation by picking the required number of items from the lighted goods position according to the system instructions.
Compared with the traditional picking method, the advantages of using the picking label system are:
• No need to wait-zero idle time;
• No need to think-zero judgment business (do not rely on skilled workers, reduce the error rate). Analysis of statistical data shows that the error rate can be reduced from three thousandths of the original picking form to two thousandths, and the picking efficiency can be increased by 2 times;
• No need to look for-storage management;
• No need to write-no paper work;
• Convenient data collection and statistics, high accuracy;
• Facilitate personnel management and assessment;
• Completely liberate your hands.
The automobile manufacturing industry generally has the following characteristics: assembly-oriented, a large variety of parts; a small number of parts in each beat; a higher frequency of picking materials according to the production rhythm; high requirements for service quality.
Correspondingly, the following requirements are put forward for the parts picking operation in the factory: the efficiency of the main production line is improved; the paperless operation; the operation error is greatly reduced; the operation time is greatly shortened; the multi-state parts do not need to be identified.
Undoubtedly, the efficiency and accuracy of the picking operation have a great impact on the service quality of the enterprise. Therefore, how to effectively improve the efficiency of the operation and reduce the error picking rate of the operators has become the biggest issue in the picking operation.
3. A simple and easy solution from Qualcomm Technology
Qualcomm Technology has used years of designing multi-national character display font chip and display interface technology, combined with the strong advantages in the industrial control field, and developed the only one on the market that can display the product name, purchase date, inventory quantity, inventory shelf number and picking The large color screen with large capacity display information such as the quantity of goods displays the picking electronic label.
Features of Qualcomm picking electronic tags:
Label display interface and function description:
* The label has two states: “Idle” and “Working”.
* The working state is started by the relevant instruction, and it is divided into three states:’unconfirmed’,’confirmed’ and’completed’.
* The confirm key completes the switch from the’non-confirmed’ state to the’confirmed’ state.
* The FN function key completes the transition from the’confirmed’ state to the’non-confirmed’ state.
* The device enters the completed state when receiving the end work instruction, and then switches to the idle state.
* In the “unconfirmed” state, you can use the up and down keys to adjust the gray text on the screen. You can modify the display content. After entering the’finished’ state, the above gray part shows all zeros.
The conventional warehouse is directly distributed to the production line. In this mode, the company hopes to replenish the goods in the first time, pick all parts of each station in the conventional warehouse, and then directly deliver to the station superior.
The application features are reflected in: the storage location, quantity, batch number and other information of the materials in the warehouse system are transmitted to theelectronic labelThe picking system realizes efficient, accurate and real-time material picking, avoids frequent replenishment, greatly improves the ability of distribution to support the production line, and gives full play to the role of the logistics center as a link between the previous and the next.
The following is the network diagram of the fruit picking solution adopted by Qualcomm Technology. In this way, one electronic tag is placed in a cargo space. The picking tags can be associated one-to-one or one-to-many, and are connected to other devices in the system. The internet. The picking label system can issue picking instructions and light up the picking tags on the shelf according to the material location and work order data. The pickers can complete the picking operations in a timely, accurate and easy manner according to the quantity displayed on the picking tags.
The operation method is that according to the work order of the parts required by the model under the current production cycle, the picking label system lights up the picking label of the required parts of the model and displays the quantity, and the picking personnel picks according to the picking label prompts Operate and snap off the relevant picking labels until all the picking labels are snapped off, then the work order picking operation is completed, the interface downloads the ERP data, and the next work order picking operation can be continued. Because this kind of picking method reasonably arranges the walking route of the pickers in the design, it greatly reduces the unnecessary walking of the operator. The system also realizes real-time on-site monitoring with a computer, and has various features such as emergency work order processing, out of stock notification, and wrong picking and missing inspection prompts.
Figure 1 Schematic diagram of physical connection of system networking
Figure 2 Network topology of a large library
4. Industry customer software management interface examples
4.1 Main function interface
When entering this interface: first click the text box below the BOM number with the mouse to give the focus
Then use a barcode gun to scan the bill number and light up the label. If the bill number has been scanned, the interface will prompt “BOM bill number cannot be scanned repeatedly”. If you find that the order of the bill number is scanned incorrectly during the picking process, the materials under the bill number are not picked, then double-click the place where the current “Please enter the BOM bill number” is displayed to cancel the current picking bill number.
Content: This area displays the information of all materials to be picked under the order number
About Qualcomm:
Qualcomm is a world-renowned smart brand and smart device and solution expert, focusing on the system development and application of “smart devices and solutions” in the field of business intelligence. Relying on 20 years of industry experience and deep IT technology reserves, adhering to the business philosophy of “change life with intelligence, and inherit civilization with technology”, we continue to promote the development of people’s material life and spiritual civilization.
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