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1. System overview
Asset management currently relies on traditional manual management methods and means. Data collection and entry have always been manual operations, which are inefficient and high in error rates, and asset physical information and management system information cannot be synchronized in real time. RFID technology can effectively integrate daily asset management activities with asset management systems, so as to achieve real-time synchronization of physical information and system information. The new technology of RFID realizes remote, dynamic, and real-time equipment asset data collection, replacing the front-end manual data collection of traditional asset management methods, and better combining with the back-end computer database to realize the addition, allocation and transfer of assets in daily management. Inventory and other information are monitored, recorded and automatically updated in real time, and personnel information is collected at the same time, so as to avoid the reduction of management efficiency caused by information distortion caused by human factors, and create good social and economic benefits.
2. System composition
(1) Reader: Integrate RFID reader module, GSM wireless communication module and reader power interface board to realize real-time automatic collection and wireless transmission of remote data
(2) Electronic tags: The GR245T / GR245W / GR245R long-distance omnidirectional card reader produced by GOFAR is used to automatically read the information of the radio frequency card and has good anti-metal interference performance.
(3) Card issuer: write data for the electronic tag, such as asset name, model, barcode number, etc., and can set a password, lock the data area, and prevent the data in the electronic tag from being rewritten.
(4) Handheld machine: used for asset inventory, can quickly read the electronic tag information on the device, and send the read tag information to the background server for processing.
(5) Card issuing software: Mainly used to write data into electronic labels, including device name, device model, device barcode, etc. After data is written, reports can be automatically generated.
(6) GIS asset management auxiliary system based on RFID technology.
3. System principle and flow chart
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The RFID automatic identification system is responsible for the automatic collection of operator information, asset changes, and inventory information, and uploads the information to the management center asset management auxiliary system server through the RFID handset, as a data source for updating the database and other system applications such as MIS and EMIP. Enable managers to keep abreast of asset allocation and work completion in a timely manner, realize effective supervision of daily management work, and improve work efficiency.
3.1 The working principle of the system
Each asset is attached with an electronic tag with a unique ID number. When an item with an electronic tag enters the identification area of the reader, its own information issued by the electronic tag will be received by the reader, and the reader will receive these The information is transmitted to the computer, and the computer system will perform the corresponding format conversion, filtering and related follow-up statistical processing to obtain relevant information such as whether the item should be stored here. After the stored items leave the recognition range of the reader, the reader will also feed back the information to the computer, which will process it. Analyze whether the information is abnormal, and if any abnormal information is found, it will send an alarm through the alarm. If you want to find an item, enter the ID number of the item into the handheld, and the handheld will send the ID information to the electronic tag, and the electronic tag will send out an alarm.
3.2 System workflow
Asset management includes operations such as the addition, allocation, idleness, scrapping, maintenance, and inventory of assets. It includes the entire process of equipment from leaving the factory and putting into use to scrapping out of use. The specific workflow is shown in the figure:
RFID hardware includes reading and writing equipment, metal electronic tags, etc. It is planned to implement the system from the following aspects to realize the automatic collection and monitoring and management of accurate information of the entire process of assets, and to realize the sharing of various information and data.
Personnel information management: On-site operators hold work cards corresponding to staff information, and realize automatic monitoring and management of personnel operation information.
New equipment management: create electronic label information files for newly purchased equipment, assign electronic labels to equipment and personnel through card readers, associate electronic label ID numbers with equipment and personnel information and import them into the database, and paste the electronic labels in On the corresponding device panel, the personnel management card is assigned to the personnel.
Equipment real-time allocation management: the equipment becomes an asset after it is purchased. After it is put into use, there will be normal allocation, maintenance, and scrapping operations. Before the allocation, the operator card information or warehouse card information is read through the RFID handset, and when entering Read the electronic label information on the transferred asset once, and read the electronic label information on the transferred asset once when it is exported, and transmit the label information including the operator, time and other information to the central server, and automatically process and judge the status of the equipment. Complete real-time tracking and positioning management of operator information and assets.
Equipment inventory management: read the operator card information and base station card information through the RFID handset before inventory, and then download the list of equipment classification information that needs to be inventoryed from the server through the GPRS network or the handset data line, and then use the handset to collect the base The current equipment information in the station, the two are compared and processed, and relevant alarms and treatments are provided for the inconsistency of the accounts. Finally, the asset inventory profit and loss results are automatically generated, including the operator, time and other information and uploaded to the asset management system, and In this way, the relevant information of the corresponding assets in the back-end database is updated.
Four, system highlights
The application system uses the latest international automatic identification technology-radio frequency identification technology (RFID), and uses modern computer technology, communication technology, automatic control technology and other technologies to comprehensively realize automatic asset identification, informatization and intelligent management.
The whole system has the characteristics of long-distance rapid identification, high reliability, high confidentiality, easy operation and easy expansion. The asset identification system can operate independently and does not depend on other systems.
Establish safe and reliable registered asset files, strengthen asset supervision through high-tech, rationally allocate resources, reduce resource waste, and prevent asset loss. It can effectively and accurately identify, collect, record, and track the data information of assets (assets with electronic tags) entering and leaving the base station (library) to ensure the rational use of assets.
Fully considered the actual situation of the communication company, studied the problem from the perspective of professional technology, and effectively solved the chaotic, disorderly and poor real-time problem in asset management. Provide an advanced, reliable, and applicable digital platform for automatic identification and intelligent management of incoming and outgoing assets, so that the ability of telecom operators to dynamically manage internal assets in real time is qualitatively improved.
Five, product pictures and performance analysis
Long-distance card reader
Product Image:
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Product model: GR245U
Product Description:
The USB interface design can be used for logistics and asset management with notebooks, PDAs, etc.
Specifications:
1 Working frequency: 2.4G ~ 2.5G ISM
2 125 channels, air speed 250K/1M
3 Modulation mode: GSFK
4 Recognition distance: 3 ~ 50M
5 Recognition speed: 100Km/h
6 Communication interface: usb
7 RF power <1mW
8 Input voltage: DC 5V
9 Maximum working current <50mA
10 Working temperature: -25 ℃ ~ +65 ℃
11 Storage temperature: -40 ℃ ~ +85 ℃
Configurator
Product model: GC245
Product Image:
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Product Description:
Configrator is a card-issuing device designed for changing various parameters of tags in field applications. It has 2.4G communication, USB interface, and low-power design. It can configure ID, sending interval and other parameters for TAGs with two-way communication functions.
Specifications:
1.Communication method: USB interface, plug and play
2. Power supply: USB power supply (5VDC <50ma)
3. RF power: <1mW
4. Communication protocol: Gofar Defined
5. Card reading distance: 1-50cm (depending on the card type)
6. Appearance size: 106mm×82mm×25mm
7. Working temperature: -40 ℃～80 ℃
8. Storage temperature: 0℃～40℃
9. Working humidity: <90%
Card label
Product model: GT245CT
Product Image:
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Product technical characteristics:
Communication parameters
1.Working frequency band: 2.4 GHz ~ 2.4835 GHz, ISM frequency band
2. Modulation method: GFSK
3. Air rate: 1Mbps
4. RF power: <1mW
4. Agreement: Gofar Defined
5.Mode: One-way read-only
6. Recognition speed: 200Km/h
7. Reliable recognition distance: 3～60M
8.Anti-collision performance: 100 tags/sec
Electrical parameters
1. Power supply: CR2325 battery, DC3V
2. Working current: <5uA
3. Working time: 3～4 years (2s interval)
Physical parameters:
1. Size: 85mm×53mm×5mm
2. Material: ABS/ROHS
3. Weight: 25g
4.color: White
5.Package: Ultrasonic
Working environment parameters:
1. Working temperature: -25 ℃～65 ℃
2. Storage temperature: 0℃～30℃
3. Working humidity: <90%
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