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Freight Container Tracking
Dassnagar's RFID technology based freight container
tracking system will provide Container leasing companies with an
asset management system that will allow for efficient and cost
effective operations. The system will incorporate radio
frequency communication, with mobile computing platforms and web
based information systems. This unique combination of technology
provides an easy to use method of data capture, updating and
synchronization without the need for error prone manual data
entry.
Architecture
System
Framework
Features
- Easily identify and locate containers, equipment
etc
- Intrinsically safe tags can provide in-field
information of assets
- Verification of tasks and work orders with
time-stamps
- Schedule recurring tasks
- No filtering through information (Books, manuals) or
checking equipment for specifications
- Client determines desired information stored on
asset
- Manage asset information as they get moved and
upgraded
- Information is mirrored and synchronized with a
central database for easy access and modification
- Anti-collision capability ensures data integrity,
when several RFID tags are read simultaneously
Functionality
- Site analysis and estimate
- Tag mounting solutions
- Software integration
- System demonstration
- Training and operational protocols
- Customer support and quality assurance
- Hosting client data (ASP agreement)
- System testing
- Custom Report Generation
- Warranty
Stored Information
Types of information that can be stored :
- present location and next four destinations
with arrival departure dates,
- contents of the container
- work orders, route of travel,
- reports, history, notes etc
Technological superiority
- barcode system fails if the image recognition field
is minutely altered, may be due to scratching, dirt,
sand blasting, day to day wire since LINE of SIGHT is compulsory. On the other
hand RFID systems are based on radio wave
transmission, so line of sight is irrelevant. More >>
- tags are programmable (read/write-able) - re-usable, can store
multiple asset information
- security - tags can not be reproduced (duplicated) - each tag comes with a unique six digit no
which is set at the time of manufacturing. bar code
label contain visual pictures which may be dulicated
- item attendant data - information about the asset is
available onsite instead of referring to a database
- stored information may include; location, time stamps for
events, release
dates, billing information, container contents, equipment specifications
etc
- multiple assets tags can be read simultaneously - anti-collision capability
allows multiple scans in milli secs
Dassnagar's superiority
- tags are secure and use encryption to protect the
validity of the data,
- holds 8 times the amount of data than other RFID
suppliers,
- mount-on-metal solution will protect the tags in the
harshest of environments,
- with a hand held PDA, onsite info can be extracted from the tag
- complete system integartion, from the computing
network back-end to the application (container
tracking) software and a total integration with the
RFID technology.
Operational limitations
- The CAPTURE FIELD (operational range) of the tags is
limited to 2-3 cm i.e. read/writing is possible when the
distance between tag and reader is < 3 cm. May be
increased to 1-2 meter by replacing the hand held readers
with more expensive stationary readers,
-
Radio waves are absorbed by water so communication between the tag and
reader is cut off in case the tag is fully immersed under water.
However tags are waterproof,
-
Radio waves can not penetrate metals due to interference of magnetic fields
However with innovative system design and engineering, these limitations can be
easily avoided.
There is a
myth that Capture Field is a luxury in an RFID system. The
reason being since "Capture Field" is a
function of 'reader supplied power' and 'frequency' at
which the tag and the reader system communicates. Increase
in reader power can be achieved by using more powerful
readers and communicating in higher frequency range
demands use of battery powered active tags and higher
capacity readers and other accessories thus leading to a disproportionate
increase of the overall system cost and hence not
recommended.
Hardware
- RFID Tags (Data Access Points-DAP's) - Mount on Metal
type, 13.56 MHz, 16 kbits memory
- Hand held computer - Visor Pro PDA (With Recharging and data synchronization cradle)
- RFID Reader - HandIT Visor Module (RFID Springboard
Reader)
- Web server - PIV, 2 Ghz+, 1 Gb RAM, 120 Gb hard-disk
RAID config (at least mirroring) [qty: 1]
- Client PC's - Pentium, 1Ghz, 256 Mb RAM, 80 Gb HDD
[ qty: 1 x no of check points]
- Modem / LAN card to connect to Internet
Software
- Web server OS - Win 2000 Advanced Server
- Client PC OS - Win 2000 Professional edition with IE 6.0
- Microsoft SQL Server 2000 (10 client licenses)
- Management Software (PC, Server & PDA)
Conclusion
Initial evaluations of
RFID systems often show only a minimal benefit to the
end-user. However, RFID technology is currently replacing
barcode technology world-wide at an ever growing pace.
Most of the worlds leading companies are either using or
researching the potential of the technology for their
business. Companies that have invested properly have
proven that the benefits are not minimal at all but in
actual fact they are quite dramatic. Wal-Mart (the world's
largest company) for instance has just placed a mandate
for its top 100 suppliers to become compliant with RFID
technology for pallet and container tracking by January of
2005.
Investing in a barcode system, a technology that is passed by may be a
cheaper solution, but RFID is the future. Though the initial investment is
more than a conventional barcode system yet the added features gives your
enterprise scalability which decreases your overall operating cost. ROI
varies between 1 - 2 yrs depending on the type of application.
Barcode fails once again.....
US Military Problems with Container Tracking in Harsh
Environments
During Operation Desert Shield/Storm, the responsiveness
of the logistics systems were degraded by thousands of
duplicate orders placed because operational units had
inadequate visibility over the status of their
requisitions. Moreover, an enormous amount of materiel
was shipped to the theater which was not readily
available to forces because of poor control and poor
visibility of assets - for example, printed labels and
barcodes were sand swept and could not be read, so
containers had to be opened for their contents to be
known. Such problems reduced the readiness and
effectiveness of combat forces and place unnecessary
strain on the transportation system. Maintaining a
visible end-to-end distribution system has become
critical to U.S. military efforts. Last fall, General
Tommy Franks, commander in chief of the U.S. Central
Command, ordered "all air pallets, containers, and
commercial sustainment moving to/from theater and intra
theater movement to be tagged with RFID [radio frequency
identification] at origin."
Container Management System
RFID
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