Warehousing has always played the most important role in the logistics system. With the rapid development of modern logistics, higher requirements have been put forward for warehouse operations such as ex warehouse, warehousing, shift, inventory and goods query. In RFID system, antennas are divided into two categories: electronic tag antenna and reader / writer antenna, which are responsible for receiving energy and transmitting energy respectively. The characteristics of UHF RFID Desktop Reader/Writer is: small enough to be attached to the required items; Have omnidirectional or hemispherical coverage directionality; Capable of providing possible signals to the chip of the tag; Regardless of the direction of the object, the polarization of the antenna can match the query signal of the card reader; Robust; cheapness. Moreover, the manual identification of cargo information is not only inefficient and prone to errors, but also has a large workload. The ultimate goal of building an intelligent warehouse management system is to finally realize the unification of information flow and real logistics in enterprise warehouse management through the introduction of effective technical means, and realize real-time visual intelligent warehouse management.
The application of radio frequency identification (RFID) can fundamentally solve the above problems. Based on radio frequency identification (RFID) technology and according to the actual situation and needs of warehouse management, Hangzhou Dongshi technology has developed an RFID intelligent warehouse management system.
RFID is the abbreviation of radio frequency identification. It is a non-contact automatic identification technology. RFID can be traced back to the Second World War (about 1940). At that time, its main function was to distinguish the enemy from the British aircraft. In recent years, with the development of large-scale integrated circuit, network communication, information security and other technologies, as well as the promotion of Wal Mart, the world’s leading retailer, Long Distance Desktop Reader/Writer has been rapidly applied to smart grid, transportation, logistics industry, medical health, fine agriculture and animal husbandry, finance and service industry, industry and automatic control, smart home, environment and security detection, public security, national defense, smart city and other industries and fields. RFID is to automatically identify the target object and obtain relevant data through RF signals. It is mainly composed of electronic tag, reader and antenna. Tags are composed of coupling elements (also known as antennas) and chips. Each tag has an electronic code (EPC), and the chip can store specific serial numbers and other information. The reader is the bridge between the tag and the software system. On the one hand, it reads the tag information, and on the other hand, it communicates the reading results with the software system. The antenna exists in the tag and reader and is responsible for data transmission from the tag chip to the reader and then to the software system.
RFID technology is divided into low frequency, high frequency, ultra-high frequency, active, etc. RFID technology has the characteristics of non-contact, fast scanning, high identification efficiency, not easy to be damaged, suitable for harsh environment, convenient operation, fast reading and writing speed, large amount of information storage, multi-purpose one card, anti-collision, good security encryption performance, reusability, tracking and positioning, etc.
As a composite equipment integrating software and hardware, desktop uhf rfid reader/writer with usb products are constantly upgraded with the development of software, hardware and communication technology. With the development of related technologies and the continuous enrichment of application scenarios, printable, barcode scanning, fingerprint identification, IC card reading, GPS positioning and other functions came into being, and the functions and convenience are also increasing day by day. Digital assigning system) is another common electronic label application method, and the electronic version is omitted below. According to this information, sorting operations can be carried out quickly. Like DPS, DAS can also work in multiple areas to improve efficiency. The use of electronic labels in logistics distribution can effectively improve the delivery efficiency and adapt to various harsh operation requirements, especially in the distribution of scattered goods. They are widely used in chain distribution, drug circulation and logistics of frozen goods, clothing, clothing, audio-visual products. When the goods are stored in each link of the warehouse, the relevant information is automatically collected and recorded. The effective management of the goods packaging operation reduces the loss. The record of product quality in each production process, the rapid replacement of electronic labels, and the simple and rapid realization of products.
By using RFID technology, improve the efficiency of warehouse management and provide the accuracy of WMS system data. The main objectives are as follows:
Reduce human operation leakage, improve management level and reduce potential safety hazards;
Real time data acquisition, keeping the consistency of items and records in time;
Reliable and stable data acquisition and accurate data;
The statements are manually sorted and summarized and then completed by computer;
Improve the efficiency of data management, timely register the detailed accounts of various safety tools and instruments, and achieve the consistency of accounts, materials and cards;
The system is flexible and has expansion function;
The system is practical and easy to operate for users with different levels of professional quality.
At the same time, at this stage, RFID technology can help enterprises open up the data link between product market demand and supply side, and help enterprises achieve faster market response. In RFID system, antennas are divided into two categories: RFID tag manufacturer and reader / writer antenna, which are responsible for receiving energy and transmitting energy respectively. The characteristics of RFID reader/writer are: small enough to be attached to the required items; Have omnidirectional or hemispherical coverage directionality; Capable of providing possible signals to the chip of the tag; Regardless of the direction of the object, the polarization of the antenna can match the query signal of the rfid tag reader; Robust; cheapness. Electronic pallet and warehouse location management, realizing the electronization of pallet and warehouse location, is the basis of realizing visual and intelligent warehouse management.
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