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1. System overview
With the rapid economic development and the continuous growth of enterprises, warehouse management is gradually valued by enterprises. Scientific warehouse management has become the pursuit of many enterprises, and advanced warehouse management has undoubtedly increased an important magic weapon for enterprises to win. Although technology has now developed to a very high level, many enterprise warehouse management still remain on the basis of manual operation. All data entering and exiting the warehouse must be manually entered by the warehouse staff one by one. This warehouse management method is not only The workload is large, and it also seriously affects work efficiency. Even many inbound and outbound data cannot be updated in the system in time, and it is impossible to understand the distribution status of materials in the warehouse and the storage capacity of the warehouse. Workers are placing and receiving materials. If there is no scientific system to guide it, materials may be placed in the wrong position or materials received incorrectly or even lost. This kind of low-end operation that consumes manpower, material resources, and financial resources will undoubtedly have a negative impact on the company, enterprise, and even a group. Simply put, it is an extreme loss in terms of capital, which seriously restricts the development of the enterprise. .
In order to solve the above problems, so far, the common method in the market is to use barcode recognition technology. Although this technology brings hope to the scientific management of the warehouse, it still has drawbacks: it cannot be managed outside the warehouse for a long time and is extremely vulnerable to wind. Affected by rain and so on.
In response to the above phenomenon, our company launched the “warehouse item access management system” solution. This set of solutions integrates barcode technology, self-adhesive electronic label technology and 2.4G long-distance active electronic label technology. This set of solutions can easily realize scientific management inside and outside the warehouse, and make the operation change from extensive to intensive. To a large extent, it has reduced the cost burden for the enterprise, and the scheme is scientific, practical, and easy to operate. Through the daily automated data collection of the data of each operation link such as warehouse arrival inspection, warehousing, outbound, allocation, shifting, inventory counting, etc., to ensure the speed and accuracy of data collection in each link of warehouse management, and to ensure that the enterprise Timely and accurately grasp the real data of the inventory, reasonably maintain and control the enterprise inventory, and facilitate the enterprise to make the next decision, so as to provide an important bargaining chip for the survival and development of the enterprise.
2. System composition
We adopt different management methods for different types of warehouse items. For small items and parts, we use barcodes for access identification management, and for slightly larger items, we use self-adhesive electronic tags (or barcodes) for access identification management. For some large items in the warehouse, such as items that are frequently in and out of the warehouse, because they are easy to be beaten by wind and rain, if the barcode is used for a long time, the barcode is easy to be damaged, so we adopt long-distance and anti-collision , Waterproof, abrasion-resistant and highly resistant 2.4G long-distance active electronic tags for access management.
The system consists of three parts: valuables management, non-valuables management and back-end management:
Valuables management ● Handheld PDA reader
● 900MHZ passive electronic label
Non-valuables management
● Handheld PDA Reader
● Barcode
● Self-adhesive electronic label
Background management ● Router
● Computer
● Database
● Special warehouse management software based on this solution
Three, working principle
1. For valuables, 900MHZ passive electronic tag source electronic tag identification technology is adopted. Use the handheld PDA reader to identify and track the items with the 900MHZ passive electronic tag source electronic tag. Use the PDA to automatically read the information of the tag (remote distance), and manually import the information to the computer using the USB interface or directly transmit it to the computer through the wireless local area network (WiFi), and then add more detailed information through the computer (Such as: name, category, shape, color, market price, production date, use period, etc.) and automatically upload the most complete data to the database.
2. For the management of non-valuable items, the use of self-adhesive label technology and bar code technology. For warehousing operations, as long as the products are sorted before warehousing, and stickers or barcodes are affixed to each category, and then the handheld PDA reader is used to automatically record the information one by one. In this process, only the order in which the products are put into the warehouse needs to be recorded. That’s it. Then upload the recorded information to the database in the same manner as above, and the database will keep the data in a unified manner. For the outbound operation, it is even simpler, just use the handheld PDA reader to read the information of the outbound items one by one, and then upload the information. Substation computers can access the background database to view data, such as when and what items were lent.
3. Store the basic information of the items in the background, such as the name of the item, the number of the item, the type of the item, the time when the item is out of the warehouse, the time of entering the warehouse, etc., and the effective management of the item.
Four, system characteristics
Basic Features
1. On-site operation management and control: Guidance and monitoring of warehouse on-site operation processes such as warehousing, outgoing, transfer, lending, and inventory, to help companies grasp the status of operation in a timely manner, reduce execution errors, and improve the efficiency and transparency of warehouse management And authenticity, to minimize the operating cost of warehouse management.
2. The accuracy of reading information is high, reducing manual errors. Save manpower and material resources, and make full use of limited human resources to all the more necessary links.
3. The information written into the tag can be encrypted and the authority management can be carried out. The information in the tag cannot be read by a person without the corresponding authority and a special reader.
4. Professional technology supports the latest technology in the RFID field, and gathers the most extensive and most affordable 3 major recognition technologies.
Excellent performance
1. 900MHZ passive electronic label card, high recognition reliability, 100% front-end recognition rate; bar code, self-adhesive label fast and convenient
2. 900MHZ passive electronic label card recognition distance is long (1-10 meters)
3. Very high anti-collision
4. High recognition stability (error rate is less than one hundred thousandths), truly achieves no errors and no missing cards
5. Fast recognition speed (the fastest recognition speed can reach 80 km/h)
High safety and stability
1. Intrinsically safe explosion-proof and waterproof performance, with encryption function
2. High anti-interference, no special requirements for interference near the warehouse and perimeter environment, strong environmental adaptability
3. Minimized device failure rate and reliable operation
4. Using active identification card, no electromagnetic pollution, maintenance-free, safe to use
5. The use of barcodes and self-adhesive labels saves time and effort
Simple and convenient operation
1. The software has a full Chinese menu and a good operation interface
2. Integrated structure design of wireless monitoring, convenient and quick installation
3. Passive electronic tags, no power supply, durable.
Rich query and report functions
1. The query and report output and printing functions are simple and easy to operate
2. Can query various item information
3. Items can also be tracked
4. Various information reports can be output as required (such as: delivery time, warehousing time, etc.)
Five, system technical indicators
Six, system function
The warehouse item access management system can check the quantity of items and their locations, as well as select tracking, query and other functions.
Tracking: For outdoor items, items can be tracked according to the information on the active electronic tags on the items.
Query: Query the item according to the tag ID or barcode number, and you can find out the name of the item, the item number, the type of the item, the time when the item is out of the warehouse, and the time when the item is in the warehouse.
Modification: The basic system information of the item can be modified to the barcode number or label number. The modification information includes: the type of the item, the number of the item, and the name of the item.
Delete: delete items that are no longer there.
Use this system to refer to and compare:
Before implementation: The book inventory does not match the physical quantity due to the data not being updated in time and manual operation errors;
After implementation: Use this system instead of manual recording to realize real-time, efficient and accurate data collection, which greatly reduces the error rate.
Before implementation: lack of operation guidance, unable to efficiently and accurately find the location of goods when entering, moving, and exiting, and it is difficult to achieve first-in-first-out;
After implementation: warehouse personnel accurately perform the operation tasks according to the cargo location suggested by the system, and feedback the operation results through the collector.
Before implementation: it is difficult to control the inventory and expiration date of the goods;
After implementation: In the basic configuration of the goods, set the lower and upper limits of the inventory of the goods. If the actual inventory is not within the range of the upper and lower limits, an alarm will be given. At the same time, you can also set the lock status for goods, warehouses, storage locations, and specific inventory. If locked, it will not be allowed to enter or leave the warehouse.
Before implementation: It is difficult to trace the source and whereabouts of the goods after problems occur;
After implementation: The system records the entry and exit of each batch or each single piece of goods, and the ledger for borrowing and returning, and the user can check the entry and exit of the goods at any time. The clearest judgment is given to the user through the information such as the date of delivery, the dealer or the customer recorded by the system at the time of delivery.
Seven, main equipment introduction
1. Picture and performance of handheld PDA
PDA hardware configuration table
Specifications
Operating system Wince 5.0
System speed 400MHZ CPU
Size length * width * height 190*80*25 (mm)
Display 3.5-inch TFT low-temperature polysilicon 240*320 high-end QVGA display
Conventional interface RS232; Bluetooth Class2 V1.1; wireless network conforms to IEEE802.11b/g standard; GSM/GPRS communication module
Storage device Flash 64/128MB; RAM 64/128MB
Battery capacity 3.7V 3200mAh Li-ion battery
Keyboard 25+1 digital backlit keyboard/support handwriting input
2. Picture and performance of long-distance passive electronic tag card
Specification Description
Product model (order code) VT-93 (disposable seal)
Physical characteristics size 330 (length) * 2 (thickness) mm (total length)
5.5*2.4mm (slender strip)
85 (length) * 28 (width) mm (signal part)
Material low pressure/mixed polypropylene
Ambient working temperature -20°C to 80°C (-4°F to 176°F)
Storage temperature -20°C to 80°C (-4°F to 176°F)
Protection grade IP-66
Protocol EPC Class1 Gen2
Capacity 96bits
Frequency UHF
3. Barcode
4. Other electronic tags
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