Introduction: Barcode technology belongs to the category of automatic identification technology. It is a practical data acquisition and automatic input technology developed on the basis of computer technology and information technology.
From a system perspective, bar code technology involves coding technology, communication technology, photoelectric sensing technology, printing technology and computer application technology. Because bar code technology has the advantages of low cost, fast identification, accurate operation, simple operation and low error rate, bar code technology plays an important supporting role in the formation and transmission of modern logistics information, and has become a necessary necessity for modernization of logistics. Prerequisites and are widely used in modern logistics systems. In developed countries, bar code technology has also been widely used in commercial warehousing, transportation, production control processes, finance, customs, postal, medical and health, ticket management, quality tracking and other fields. In China, bar code technology has been widely used as a mature identification technology in the field of commodity circulation, and its application in logistics and production control processes is also constantly developing.
Transportation industry applications
A typical transportation business process usually goes through several processes: supplier-->freight agent, freight forwarder-->cargo company, freight company-->customer, which involves the processing of delivery documents in each process. The shipping documents contain a large amount of information, including: shipper information, consignee information, goods list, shipping methods, and so on. The premise of document processing is the entry of data. The method of manual keyboard entry has the problems of low efficiency and high error rate, which can no longer meet the requirements of modern transportation industry. Two-dimensional barcodes provide a good solution in this regard. The contents of the documents are compiled into a two-dimensional barcode, printed on the shipping documents, and the barcode is scanned using a two-dimensional barcode reader at all stages of the transportation business. Entering into a computer management system is fast and accurate. In the United States, although EDI applications have revolutionized the core of business processes, it is unfortunate that it ignores the key role in the process - shipping companies. Many EDI messages are always late for the shipper to affect the shipment and customer receipts due to the inability to confirm accurate shipper information in a timely manner. The American Freight Association (ATA) therefore proposed an on-paper EDI system. The sender compiles the EDI information into a PDF417 barcode label and submits it to the shipping provider. By scanning the barcode, the information is immediately transmitted to the shipping company's computer system. All of this happens at the right time and in the right place, making the entire transportation process much more efficient.
Identification card application
The US Department of Defense has printed PDF417 code on the military identity card. The cardholder's name, rank, photos and other personal information are compiled into a PDF417 code printed on the card. This card is used to manage entry and exit and hospital visits for important locations. The advantages of this application are real-time data collection, low implementation costs, card damage (such as gunshots), and anti-counterfeiting. The resident ID card of the Hong Kong Special Administrative Region of China also uses the PDF417 code. Other applications, such as business licenses, driver's licenses, passports, temporary residence permits for migrants in cities, and medical insurance cards, are also good applications.
File and form application
Every broker of Seimei Insurance Company of Japan is carrying a laptop when meeting with customers. Each policy and agreement is made and printed on the computer. When they return to the office, they need to manually enter the policy data into the company's mainframe. In order to improve the accuracy and speed of data entry, they make the policy and compile the policy into a PDF417 barcode and print it on the document, so they can use the 2D barcode reader to scan the barcode to record the data into the host. Other similar applications include: customs declarations, tax returns, various forms of government departments, and so on.
Asset tracking
American steel pipe companies have different types of pipelines to maintain in various places. To track each tube, they numbered the tube number, location, manufacturer, length, grade, size, thickness, and other information into a PDF417 barcode, which was then placed on the tube. When the tube is removed or installed, the operator scans the barcode label and the database information is updated in a timely manner. The factory can also track production equipment using 2D barcodes.
Healthcare industry applications
The EAN item coding system approved by the European Committee for Standardization, which effectively eliminates false representations of product information. Such as content, category, size, ingredients. The application of the EAN system enables medical products and services to have identification numbers represented by standardized barcodes. This number itself does not carry information, it is like a key to enter the door, used to retrieve the data stored in the file in the computer.
In addition to enhancing the information transfer between the various parts of the logistics management, the EAN system can improve the management efficiency of the hospital through the following ways:
A. Better distribution management (reducing errors, accurately dispensing medicines, and improving employee motivation);
B. Quality assurance (timely data, tracking capabilities of drugs and medical devices);
C. Better clinical diagnosis (accurate identification of patients, provide correct documentation, and quickly obtain test conclusions);
D. Enhance customer satisfaction;
E. Improvements in productivity and cost and many other benefits.
The EAN system has been used to identify prescriptions and medicines in 30 countries on all continents. Recently, the United Nations International Drug Control Regulations have agreed to adopt an EAN system to accurately and timely track the spread of narcotic drugs in the world.
Application in postal car operation
The postal department should adopt an all-round bar code automatic identification technology to assemble an all-round scanning device at the door of the train compartment to solve the problem of identification and automatic input of the general bag information of the pouch. The post office receives the mail, after rough division, subdivision (excluding direct seal), puts the pouch, and uses the label containing 128 yards and pdf417 barcode on each bag label. The label is printed by the barcode printer in the format required by the postal industry. On-site printing is carried out in each business window (direct mail pouch) or sorting and sealing department. After the automatic export of the export package, the waybills are generated in the order of arrival along the railway. When the train is always on the train, it is equipped with a full-scale barcode scanning device to quickly and automatically identify the barcode information on the general package, and generate a total package handover list. After the pouch is loaded, the general package information is transmitted to the computer system through the scanning device, and printed by the micro-printer configured by the carriage to produce a road order. According to the road list, pile up in order to facilitate getting off the road. After arriving at the station, the ground staff used the identification device with infrared transmission to transmit and connect with the identification device on the vehicle to transmit the data to the ground station. Then, the scanner scans the bag by bag, and automatically checks, picks, verifies, and pairs, and realizes the bar code management automation of the operation flow. By using barcode recognition technology to realize the automation of train mail processing information, the automatic transmission of two-way data between the vehicle and the ground station can be realized, instead of the original manual operation, not only can the production efficiency be greatly improved, but also the error rate will be greatly reduced. The service points of the postal network will bring significant economic and social benefits, and the competitiveness of the post will be greatly enhanced.
Application in traffic management
After using the annual inspection label of PDF417:
1. Since the PDF417 symbol on the annual inspection label contains important parameters of the automobile, it is not necessary to repeatedly input data during the annual inspection of the automobile, which improves the annual inspection speed of the vehicle;
2, PDF417 2D barcode is a paper EDI, it does not require the network, through a label paper can easily realize the data storage, transmission and automatic identification function, and the investment is very low, can be well reduced The network burden has made up for the lack of network construction;
3. Improve the processing speed of traffic violations and ensure the safety and smoothness of traffic;
4. Because PDF417 has strong anti-counterfeiting ability, it is not easy to be forged. It can effectively combat and stop the illegal activities of theft of vehicles.
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