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1. Project background
There are various forms of loan assets in Weihai branch. Many assets have the characteristics of high value, strong liquidity, and difficult safety management. However, in order to check or count the real-time status of assets and track the flow of assets, the branch needs to waste a lot of valuable assets. Time, manpower and material resources. Traditional asset management methods generally rely on non-automated methods of recording and tracking management based on paper documents, which are inefficient. As the number of assets increases, the burden on warehouse managers is getting heavier and heavier. It is also easy to omit or repeat the manual inventory, and the physical objects are difficult to match the book. At the same time, it also increases the difficulty of asset management, often causing problems such as untimely data and high error rates.
2. Application goals
In order to optimize inventory and improve the efficiency of asset management, grasp the inventory status in real time, accurately grasp the flow of assets, realize the intelligent, scientific and automated inventory management, effectively control the loss or idleness of assets caused by poor inventory asset management, and improve Management efficiency and service image, Beiyang Group’s asset in-place management system based on smart shelves, adopts advanced RFID technology and computer software technology, uses RFID electronic tags as information storage media and pastes them on assets, and stores the basics of the assets in the chip. Information and the return status of receipt can realize the information management of the work process of asset registration, storage, search, inventory, outgoing, online inspection, etc.
The system performs unified numbering, account creation, and card creation of assets, which can perform strict state management of items in the warehouse, and realize functions such as accurate registration of items in and out of the warehouse, intelligent inventory counting, and item flow tracking. The system can strictly monitor the presence of all items in the warehouse, that is, whether an item is in the warehouse. If the item is lent, it is no longer necessary to record manually, and only need to perform the asset loan operation in the system, and the asset loan can be realized automatically. The system realizes the networked asset management of multi-level units/departments. It can record in real time which unit/department’s warehouse the asset is borrowed from and which unit/department is borrowed, and can check the asset in/out and in-warehouse status of all units at any time.
Use the latest RFID smart shelf developed by Beiyang Group to check and count the assets, accounts, and cards of in-place assets in real time, and perform statistics and print reports on a regular basis, so as to improve the existing inventory management methods, improve management levels, and reduce work intensity. The positioning and tracking of corporate assets help companies achieve the consistency of assets and books, and establish an advanced, standardized and optimized management mechanism for companies to help companies minimize operating costs and risks, thereby increasing the utilization rate of corporate resources , Improve the efficiency of asset inventory and the rate of return on investment.
3. The overall structure of the system
1. System function module
2. System topology
Four, system design
1) How to paste the asset tag
Due to the various types of assets and different sizes of enterprises, the individual differences of the items are large, and the metal properties of the items are different, it is not only difficult to formulate standardized rules for sticking labels, but also puts forward higher requirements on the size and specifications of the labels. Therefore, before sticking the label, it must be classified and managed according to the type of asset.
Assets in the warehouse can be roughly divided into four categories: large boxes, small boxes, metal items, and ordinary unpackaged items.
a) Large packing box category refers to the use of outer packing box packaging, large-scale assets, the packing box may contain one or more items. For this kind of items, due to their large size, it is difficult to put them on the shelves or to check inventory, and also difficult to borrow or return to register. Therefore, an asset is managed with one label and the label is pasted on the outer packaging box. Use RFID handsets for registration management when lending or returning registration.
b) Small-box items refer to assets that are packaged in an outer packing box but are relatively small in size. The packing box may contain one or more items. For such items, the label is affixed to the outer packing box, and the RFID asset loaner is used for registration when loaning or returning it.
c) Metal objects refer to single metal objects. Because metal interferes with the identification of the tag, it will be hanged on the metal object by the way of tag, and the RFID asset loaner will be used for registration during loan or return registration.
d) Ordinary unpackaged items refer to single items, which adopt tag or paste methods, and use RFID asset loan and return device for registration during loan or return registration.
2) Smart shelf design
Each RFID smart shelf is modular in design, with good concealment in appearance, and can be customized according to the actual needs of user asset management, or it can be directly transformed on the basis of existing shelves. The smart shelf is equipped with an LED indicator prompt device. If it detects that the required asset is on the shelf, it will be lit, which can be used in various occasions.
The flat panel antennas embedded in the shelves are placed in a horizontal manner, placed flat on the bottom surface of each shelf, and can sense the asset tags placed on this layer.
The standard shelf of the branch office has a floor height of 50cm and a length of about 150cm, so three flat antennas must be placed side by side on each shelf. Each shelf has four floors, and a total of 12 panel antennas need to be embedded. In this way, each smart shelf needs to be equipped with a 4W reader and two multiplexers, the reader signal is distributed to the multiplexer, and then connected to 12 flat antennas.
Five, software function
Asset management based on RFID smart shelves can realize asset export/entry control, asset storage location and quantity statistics, automation of the information query process, and automatic selection of assets in and out of the library, so as to facilitate management personnel to perform statistics, query and grasp the flow of materials , In order to achieve convenient, fast, safe and efficient management goals.
1) Realize the unique identification of physical assets
First, according to the uniqueness of the RFID tag, realize the one-to-one correspondence with the physical asset, and then enter the name, category, origin, quantity, storage location and other information of the asset in the tag through the RFID read-write device, and finally install the tag on the asset.
2) Realize the automatic positioning of assets
The system can scan the assets in place on the smart shelf in real time according to the input asset number or name. When the asset is located, the smart shelf will automatically turn on the indicator to indicate the shelf location of the asset. The entire process only takes 10 seconds. Can be done.
3) Realize automatic inventory of existing assets
When counting, there is no need to manually count each asset one by one, just start the “online count” function, the smart shelf will read the RFID electronic tag information on the assets in turn, and read the information through the communication interface The asset information is transmitted to the server, and the server uses the application software to process the asset information accordingly. It counts and counts the assets in place in real time, and compares it with the inventory data. If it is found that the scanned data and the existing data in the database are When there is a conflict, a prompt message is generated, and finally the asset inventory table can be printed according to the user’s needs.
4) Asset storage management
When an asset needs to be put into storage, the management staff will make a storage slip based on the invoice. The system determines the warehouse and shelf where the asset should be stored based on the storage slip information. The RFID tag of the asset is read through the RFID read-write device and the asset is recorded. And put the asset on the designated shelf, then check it with the electronic label information on the cargo location, and finally log the information into the system database.
5) Asset delivery management
When an asset needs to be shipped out of the warehouse, the management staff will make a delivery list according to the sales contract. The system determines the warehouse and shelf where the asset should be stored based on the delivery list information. The intelligent shelf detects and locates the asset in real time, and matches it with the inventory. Check the electronic label information, and finally log the information into the system database.
6) Security management of assets
By installing an intelligent security detection door at the entrance of the warehouse to collect label information in real time, if the asset is not authorized to leave the warehouse, the system will immediately interlock with the security system to alarm to ensure the safe custody of the asset. If it is an authorized asset out of the library, the software will automatically record the out of library information and make statistics.
Six, hardware equipment
The asset in-place management system based on smart shelves is mainly composed of smart shelves, smart security detection doors, RFID asset loan and return devices, and asset tags.
1) Smart shelf
The smart shelf is a high-performance asset positioning management device that supports ISO15693 protocol label identification, supports a single shelf with a maximum width of 100cm, and supports multiple shelf parallel applications. Through shelf layer label scanning, it can complete item inventory, query positioning, and Error statistics and other functions. The performance of the smart shelf includes:
Adopt advanced anti-collision algorithm and powerful label detection function
Low power design, adjustable output power
Stable performance and strong anti-interference ability
The single test success rate is greater than 99.5%, which is higher than similar international products
Realize segmented and layered shelf control, reduce application costs
A single control host can control 4 sections of shelves, and a single section of shelves supports double-sided 6-layer cargo positioning management
2) RFID asset loan and return device
The RFID asset loan and return device automatically reads and recognizes the asset when the asset is lent or returned, and automatically modifies the loan and return status.
Comply with ISO15693 protocol, realize powerful label processing capability, stable performance, strong anti-interference ability, etc.
Reading distance above 50cm (label size is standard card size)
3) Asset tag
Asset tags comply with the ISO/IEC15693 standard RFID tag chip. The label printing content can be customized according to customer requirements. The surface coating, face material and adhesive of the label sticker are specially selected for asset needs. It is easy to stick and has good adhesion. Low corrosion.
4) Intelligent safety detection door
The intelligent safety detection door is made of aluminum alloy and plexiglass, with high-grade appearance and stable performance.
Single channel width 80-120cm, integrated integrated design, convenient installation and simple maintenance
Through the speed of 40-50 / sec, high-speed, high-efficiency read label information
Communication interface RS232/RS485, TCP/IP
Seven, application characteristics
1) Asset automatic positioning function: the system can automatically track the inventory of item-level assets, accurately determine the shelf location of the asset, without manually searching for the asset, improving the accuracy of asset records, and confirming that the asset is placed on the shelf The time and the time of evacuation, thereby solving the chaotic, disorderly and poor real-time problem in asset management.
2) Improve work efficiency: The system can greatly improve the work efficiency of the enterprise, at the same time greatly increase the utilization rate of enterprise assets, and reduce the operation cost of the enterprise.
3) Simplify the management process: Make full use of the automatic collection and remote transmission functions of the smart shelf to realize the real-time consistency of asset change information and system information, and realize the effective real-time monitoring and recording of the work process by the back-end system, so that the managers can be in the office You can learn about the allocation and use of assets in time, reducing labor costs.
4) Improve safety: establish safe and reliable asset files, strengthen asset supervision through high-tech, rationally allocate resources, reduce resource waste, and prevent asset loss.
5) High reliability and stability: The entire system has the characteristics of long-distance, fast identification, high reliability, high stability, high confidentiality, easy operation, and easy expansion.
6) Achieved a high degree of unification of physical objects and accounts: The system uses the real-time detection function of smart shelves to realize the online inventory of assets in response to the frequent inconsistencies between physical objects and financial accounts in inventory management, so that the physical objects and accounts of assets can be realized. The information is highly consistent, so that the enterprise management is orderly and the accounts are consistent.
8. Project implementation and effectiveness
The Weihai branch has two asset warehouses with 1,100 items under supervision. The system was implemented in August 2010 and officially launched in October 2010. Establish a network management platform in the branch information center to supervise the branch online.
After the implementation of “in-place asset management based on smart shelves”, intelligent warehouse management has been effectively realized, and the following effects have been achieved:
1) Increase in and out speed by 50%
2) The chance of misplacement and mishandling is reduced by 30%
3) Through real-time statistics of items in the inventory, the speed of inventory is increased by 80% to 120% compared with manual methods
The successful implementation of the system not only effectively ensures the real-time tracking and asset safety of assets, but also makes a qualitative leap in the management level of users, which has won unanimous praise from users.
Nine, the scope of application
In-place asset management based on smart shelves is widely used in fields such as classified assets, valuable assets, libraries, archives, guns and weapons, and controlled drugs.
At present, Beiyang Group’s in-place asset management system has been widely used in the field of libraries and archives, and has been widely praised by users.
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