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1. Introduction to the system
The global circulation of goods uses containers as carriers, especially sea containers. There are about 2 million containers produced in the world every year, and more than 50% are produced in China. In 2004, the global container holdings were about 21.87 million. Container manufacturers and container transportation management companies undertake a large number of heavy statistical management tasks such as production and transportation, finished product transportation, and stacking storage. After the container leaves the factory, it is not possible to know the location and status of the container in real time, and whether it has reached the yard safely. Due to the complicated procedures of entering and leaving the yard, the consignment vehicles line up in long lines. In addition, find the designated container on the huge yard Very difficult, not only a waste of time but also error-prone. Since it is impossible to know the number of containers on the yard and the vacancies in real time, the utilization rate of the yard is invisibly low, and enterprise resources are wasted.
ACTIVE of Shenzhen Baorong Yingfeng Technology Co., Ltd. RFIDThe technology can adapt to the harsh environment of the container production line and the metal box group in the storage yard. It can track the containers and consignment vehicles in real time during the product offline and transportation links, and realize the automatic management of containers (container production management), consignment vehicles and yards ( Container storage status) management. The RFID-based container management system uses 2.4GHZ active electronic tags. The 2.4GHz active electronic tag has the function of target recognition and/or micro-area positioning. It adopts advanced CMOS 0.18 um low-power integrated circuit, which meets the design of small size and low-power performance, and can be used in high-risk environments. Without affecting the transmission distance, the battery life is more than 4 years.
2. System composition
Electronic tags (container electronic tags and trailer electronic tags), readers, on-board reader systems, factory exit monitoring subsystems, yard automatic management subsystems, and central monitoring subsystems.
2.45G explosion-proof active electronic label
Baorong Yingfeng’s explosion-proof asset tag is a 2.45 GHz active RFID tag, which is RoHS compliant and has excellent resistance to cold and heat shocks and drop resistance. In addition, the chemical compatibility of the self-adhesive label and the insulation resistance of the shell surface are very good.
Features:
? Intrinsically safe low-power design.
? With read/write function, so that the end user can write relevant information into the label
? Advantages anti-collision function, can read the information of 100 tags per second and manage more than 2000 tags in the field
The unique hole design at both ends of the asset tag makes the tag easy to fix on the item
? Battery low voltage alarm prompt
technical parameter:
Working frequency: 2.4GHz-2.5GHz ISM microwave range
Recognition distance (theory): 0~60 meters (no interference environment)
Modulation mode: GFSK
Communication protocol: Bisha customized (non-public agreement)
Communication mode: read only
Communication rate: 1Mbps
Anti-collision (theory): 100 cards can be recognized at the same time
Working current/voltage: <6uA, 3V
Protection level: IP67
RF power: 0dBm
Battery life (theoretical): 3 years (one-time)
Working temperature: -20～60℃
Storage temperature: 0～30℃
Moisture resistance: 90% (non-condensing)
Typical applications: asset safety management, vehicle management, coal mine management, container management
Reader
The gain controllable reader adopts advanced 0.18um CMOS circuit, which is low cost and high density; the reader has diversified interfaces and can carry out various network layouts. The antenna is an omnidirectional design, which can identify and track targets in all directions. Users can adjust the recognition distance of the reader according to actual needs to make the recognition range more accurate.
Performance parameter
Identification method: omnidirectional identification, standard λ/4 rubber whip antenna
Recognition distance: adjustable from 2 to 80 meters, which can reduce the maximum reading range
Working frequency: 2.4GHz-2.5GHz ISM microwave range
RF power: 0dBm
Receiving sensitivity: -90dBm
Working current: 50mA, 9V
Modulation mode: GFSK
Working mode: direct mode/buffered mode
Buffer capacity: 800 latest Tag data
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, ZIGBEE
Working temperature: -40～80 ℃
Moisture resistance: 95% (non-condensing)
Dimensions: 126*104*28mm
Central monitoring center subsystem: monitor the operation of other subsystems, carry out information interaction with other subsystems; carry out container information management and consignment vehicle information management, data statistics and analysis, and carry out freight settlement; provide customers with container information inquiry services.
Factory monitoring subsystem: monitor and record the information of the factory container, the information of the consigned vehicle, the occurrence time, the operator, etc. Statistically analyze the delivery status of various containers.
Yard container management system: monitor and record the information of the containers passing through the gate, the corresponding haulage vehicle information, the time of the incident, the operator and other information, the management of the container stacking position information in the yard, quickly and accurately find the status of the container; the image of the 2D container The storage yard map and the function of placing and finding boxes.
Three, the system process
The normal working process of the system is as follows: install the electronic tag with the information of the container on the container of the new production line, confirm the container number when the stacker is operating, and then leave the factory. The consignment vehicle is transported from the factory to the yard, and the consignment vehicle is leaving At the gate of the factory, the system automatically collects container information and consignment vehicle information, and when consignment vehicles enter and exit the yard, the system automatically collects container information and consignment vehicle information, and dispatches the stacker to direct the stacker container location through the transmission system.
The RFID container management system pioneered the use of long-distance RFID technology for container tracking and management, and realized the automatic identification of boxes and vehicles, which greatly shortened the time required for the previous manual operation mode, and accelerated the delivery of offline products. The speed of transportation and yard storage; it also reduces the error input of information and improves the accuracy of information collection. These will achieve good economic benefits in the company’s cost control, and enhance the competitiveness of the company. In addition, its social benefits should not be underestimated. It improves the working environment of the staff, reduces the amount of manual work of the staff in harsh environments, and truly serves the purpose of increasing productivity with technology.
At the same time, the explosion-proof active electronic tags produced by Baorong Yingfeng Company are very convenient for users to use.Electronic label with sensor series and 2.4GHZ seriesReaderUsed in conjunction, it can effectively reduce the loss of information in the container transportation process, and has a stable reading and writing accuracy rate, which can well meet the application requirements of the container management system.
Four, system advantages
All equipment of this program meets industrial-grade standards for dustproof, shockproof, and high temperature. Active 2.4GHZ electronic tags, stable reading and writing, long reading distance, parameters can be set according to user needs, easy to use. Readers are installed at key points such as the entrance of the container factory and the entrance and exit of the yard to realize dynamic reading of tags without stopping. It speeds up the delivery, transportation, and yard storage of offline products, improves the accuracy of information collection, and reduces the manual work of staff in harsh environments.
5. Supplement to RFID application in containers
1. Technical application: In fact, the Global Radio Frequency Committee is working hard to promote the use of unified high frequency, ultra high frequency and microwave frequencies, so that RFID can be used smoothly on a global scale.The 2.45GHz active electronic tags and readers produced by Baorong Yingfeng Technology are a model of long-distance identification applications.
2. Infrastructure: Storage and ports are installing various RFID reading and writing equipment to increase the speed of goods in and out, so as to provide customers with value-added services. Not only that, the demand for RFID readers on cranes and ground facilities is also increasing day by day. Readers installed on cranes and tugboats can provide data link between material movement and equipment. So our products have a wide range of applications.
3. Time limit features. A typical RFID device can only read the historical data stored in the RFID tag or electronic seal when the goods and the container pass through the reader. However, in application, it is more effective to directly transmit the relevant data of the container to the truck driver. For example, when there is a problem with a refrigerating unit on a trailer, it is more effective for the driver of the trailer, rather than the headquarters staff who are thousands of miles away, to take measures.
4. Cost issues. On some containers that use electronic seals, we need some handhelds to perform operations, but most occasions and applications do not require handheld devices. Although the use of satellites to track containers does not require RFID-like handheld devices, it does need to subscribe to satellite services-it will incur continuous costs, and RFID handhelds only need to pay for the purchase. The most prominent problem with cost analysis is the lack of understanding of the business model: shippers of containers, not freight forwarders, need to pay for the use of RFID tags or satellite equipment. Port and warehouse owners pay to install RFID equipment, because the use of RFID can bring benefits to shippers, ports, and warehousing companies, so the cost of RFID systems can be shared by multiple parties. However, the use of satellite equipment requires the owner to bear all the costs.
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