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1. Introduction
For many companies, assets exist in various forms. They can include production materials, equipment, vehicles, desks, computers, cables, and even personnel. As far as some of the essential valuable assets commonly used by companies are concerned, they It has the characteristics of high value, strong liquidity, and difficult safety management. These large or small valuables often waste a lot of precious time, manpower and material resources in order to check assets at the end of the year or find (or inventory) the location of assets flowing to various departments or project sites and understand their conditions. Because assets are constantly flowing Yes, it is easy to omit or repeat when counting, and it is difficult to match the actual item with the book. Moreover, as far as valuables are concerned, a lot of manpower and material resources are also spent on anti-theft and other aspects.
The asset RFID identification, monitoring and management system uses RFID technology to locate and track corporate assets, helping the actual object to be consistent with the book, and improving the efficiency of asset inventory and the rate of return on investment. The main goal is to achieve full visibility of corporate assets and real-time updates of information, so that users can more refined asset management, so that they can monitor the use and flow of resources in real time, so as to ensure that the physical objects are in line with the book. Through the RFID asset management system to ensure the best use and safe flow of tangible assets, and to help companies establish a set of advanced, standardized and optimized management mechanisms, implement resource management to every aspect of corporate operations, and help companies maximize Reduce operating costs and risks to a degree, thereby enhancing comprehensive competitiveness.
2. Benefits of RFID solutions in asset management
1) From the physical point of view, compare with the financial account, and the two correspond to each other, so that the account and the material match in the true sense;
2) Ensure the best use and safe operation of tangible resources, and help companies establish a set of advanced, standardized and optimized management mechanisms, implement resource management to every aspect of corporate operations, and help companies minimize operating costs And risk, improve profitability, thereby enhancing comprehensive competitiveness;
3) Enterprise assets are fully visible and information is automatically updated, allowing users to more refined asset management, enabling them to monitor the use and flow of resources in real time, maximizing resource utilization, and ensuring that expensive resources are in demand Time can be obtained anytime, anywhere;
4) The introduction of automatic identification technology can automatically monitor and update asset information, making it possible to quickly count assets, greatly reducing the manpower and material resources for financial inspections at the end of the year, and also reducing the error rate of inventory.
3. RFID electronic label technology
3. 1. Technical introduction
RFID (Radio Frequency Identification) is a radio frequency inductive identification technology, which is composed of a read-write device and an electronic tag. The target object is automatically identified through radio frequency signals between the read-write device and the electronic tag, and its related data is obtained, thereby realizing the identification of the object , And remotely transmit the collected information and data through wireless technology. Compared with the currently widely used barcode technology, RFID has a long reading distance (several meters to hundreds of meters), strong penetrating ability (information can be read directly through the packaging box), anti-pollution, and high efficiency (can be processed at the same time) Multiple tags), the characteristics of large amount of information.
3. 2. RFID technology suitable for material management
RFID identification technology is a technology with a wide coverage. The applied frequency ranges from 125kHz, 134.2KHz low frequency to 13.56MHz high frequency, to 915MHz UHF band and 2.45GHz, 5.8GHz are all applied. The recognition distance ranges from ten centimeters to tens or even 100 meters. According to the characteristics of valuable assets, the following products can be used:
1 Asset tracking reader: The frequency band is 2.45GHz, the gain is controllable, and it can be combined with PDA to realize the flow of fixed and mobile tracking materials;
2 Asset electronic tags: The frequency band is 2.45GHz, active electronic tags, which can be pasted on target materials.
Four, system function
1) Arrange a reader at a suitable location so that its signal can cover the entire room. The asset RFID identification monitoring management system monitors the movement and location of the asset in real time. When the asset leaves the department room due to the transfer, the system will check the transfer Record, if the asset is transferred without authorization, an audible and visual alarm will prompt the administrator for verification. If the asset is authorized to be transferred, the system will automatically locate the new area of the transferred asset and update the asset record, which will be approved by the administrator. – How to judge whether to authorize? How to judge that the person who moves the assets is a legally authorized person?
2) Or arrange a reader at each key entrance and exit. When the asset is taken away from the company, the asset RFID identification monitoring and management system will query the list of electronic article release notes and whether the article is on the list. If it is in the list, the system automatically records the travel time and the information of the person carrying the item. If it is not in the list, the system will automatically add the item to the blacklist and activate the alarm mechanism to prevent the item from being stolen;
3) In areas not covered by the signal of the reader, a handheld reader can be used to periodically check the number of assets quickly and remotely. The recognition distance of the handheld reader is about 15M, and asset tags within its range can be recognized.
Five, system architecture
5. 1. Schematic diagram of system network structure
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Schematic diagram of RFID asset management system network structure
5. 2. Composition of related equipment
5, 2, 1, asset electronic label
The active RFID independently developed and produced by Shenzhen Bisha Technology can meet various technical requirements such as metal resistance, remote monitoring, convenient search, and anti-theft alarm for the management of valuables. The electronic label is encapsulated by ABS and pasted (addressing label) or tied (strip & card label) on the surface of the material to identify the attributes of the material object. Each label corresponds to a unique ID number. Through system integration, it can be A series of basic information of the materials corresponding to this ID is stored in the computer.
1) Addressing tag 24TAG03A
The addressing tag is a new type of tag specially designed for asset location, tracking and inventory management, which is newly developed by our company. According to the unique ID address on the tag, it can effectively track and identify assets and find warehouse goods.
The addressing tag is an active working tag of 2.45GHZ, which can be recognized at a long distance. The tag has a precise location search function. The user can find the location of the tag area through the control center, and then find the specific location of the target tag through the handheld terminal. The target tag will immediately display a specific flash signal after receiving the search command from the handheld terminal. The user can use the search belt A tag with a specific light signal finds the target asset.
Working frequency: 2.45GHz
Recognition distance: 15~30 meters (stable and adjustable
Communication protocol: Customized by Bisha (non-public protocol)
Average current: 15uA
RF power: 0dBm
Battery life: 1 year (calculated based on the label flashing 12 times), the battery can be replaced
Dimensions: 51*26*8.4mm
Working temperature: -20～+60℃
Typical applications: asset tracking, warehouse management
2) 2.4GHz active configuration tag 24TAG02A/24TAG02B
The asset configuration tag can not only realize long-distance identification and positioning, but also increase the parameter configuration function. The user can modify the radio frequency signal transmission interval through the configurator, and can also switch the tag work/sleep state, which greatly extends the battery life and is effective Solve the life-neck bottle faced by active tags.
Transmission distance: 2~50 meters adjustable
Working frequency: 2.4GHz-2.5GHz ISM microwave range
Working mode: read-only
Configuration function: a, work/sleep mode conversion; b, radio frequency signal transmission interval modification; c, serial number modification.
RF power: 0dBm
Working current: <6uA, 3V
Modulation mode: GFSK
Communication rate: 1Mbps
Anti-conflict: can recognize 100 cards at the same time
Service life: 2~3 years
Dimensions: cassette type 85.5*54*4mm; strip type 90*31*11mm
5, 2, 2, asset tracking recognizer
1) 2.4GHz gain controllable reader/writer 24GR02A & 24GR10A & BW01A
The device is a separate design of the host and antenna, and omnidirectional/directional antennas are optional. The equipment is easy to be fixedly installed on the entrance and exit of the door or on the ceiling of the room. The recognition distance is adjustable from 2 to 50 meters. Any asset with an electronic tag enters and exits the area, and the asset intelligent tracking system can automatically enter the information management center.
Identification method: omnidirectional identification, standard λ/4 rubber whip antenna
Recognition distance: 2~50 meters stable and adjustable, which can reduce the maximum reading range
Working frequency: 2.4GHz~2.5GHz ISM microwave range
RF power: 0dBm
Receiving sensitivity: -90dBm
Working current: see different interface data
Modulation mode: GFSK
Working mode: direct mode/buffered mode
Buffer capacity: 100 latest Tag data, which can be expanded to 800
Communication rate: 1Mbps
Anti-conflict: can recognize 100 cards at the same time
Interface mode: support multiple interface modes, RS232/485, TCP/IP, WI-FI
Working temperature: -10～70 ℃
Moisture resistance: 90% (non-condensing)
Dimensions: 126*104*28mm
2) Alarm controller
In addition to the basic functions of a TCP/IP reader, the RFID sound and light alarm reader also adds a blacklist alarm function; the sound alarm is built-in, and the optical alarm is external. The antenna is an omnidirectional design, which can identify the target in all directions, identify its identity, and determine its scope of activity. RFID sound and light alarms have great advantages in personnel control and occasions requiring alarm control.
3) USB handheld reader 24GR01U
The handheld reader is composed of a PDA terminal and a USB recognizer. It is small and easy to carry. It is often used as a supplement to a fixed reader for mobile inventory and mobile search of target assets.
The USB reader/writer implements the computer to obtain data through the USB interface. Its advantages are low cost, high performance, safety and reliability, and humanized design. It can be applied to logistics, personnel identification, banking systems, etc. The reader interface adopts USB2.0, which is suitable for smart phones, PDAs, notebook computers and other USB interface devices. The antenna is an omnidirectional design, which can identify and track targets in all directions. Exquisite appearance, easy to carry.
Recognition method: omnidirectional recognition, chip antenna
Working frequency: 2.4GHz-2.5GHz ISM microwave range
Communication distance: 20 meters
RF power: 0dBm
Receiving sensitivity: -90dBm
Modulation mode: GFSK
Working mode: direct mode
Communication rate: 1Mbps
Anti-conflict: can recognize 100 cards at the same time
Interface mode: USB2.0
Moisture resistance: 90% (non-condensing)
Shell material: plastic shell
Typical application: mobile identification
For more detailed plans, please contact us for:
Phone: 0755-86069613 Fax: 0755-86069649
Mobile phone: 15986790282 Contact person: Tian Lu
Address: Room 816, Block F, Xihai Pearl, No. 1, Taoyuan Road, Nanshan District, Shenzhen
E-mail: [email protected]
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