hmms..Last week we started on the project of the felica lift.. Cracked our brains to get that proposal done..haha..
Our proposal talks about how the lift operates and the purpose of RFID, how it made people's life more convenient and the security reasons we use RFID for.
Anyway, we also manage to complete assignment 2..phew..at least manage to complete 1 out of the many projects given..haha.. now, we're jus waiting for the presentation on tuesday =)
alright..till then when we distribute our task for the felica lift system then I'll update again..^^
This week post like not much to blog about =( But I shall still blog because it's weekly assignment-base.
okay, first of all, we did our practical lessons about how to use RFID technology in access control. We did our practical and implemented RFID technology on the sample lift. We followed the paper and type our codes in eclipse. I learned a lot of codes like how the system will react when different codes are typed in the program. For example, the buttonPressed() event in the output and input buttons, the onLight() event to switch on the different lights when being pressed and the offLight() event to turn it off when the lift reached its desired level. The codes for getting the card scanned and reading its ID is interesting. It is the cardChanged() event where the system actually prints out the card number and activates the lift. So far, it's really an interesting practical and I learned a lot! After the practical, Mr. Kong also questioned us about the questions provided in the paper. He explained quite a bit when we did not get the full answer. Not a bad experience =)
RFID card reader to scan the card for access
After that, in the afternoon, we did our presentations. Well, I personally think we did not too bad already, but we will definitely be better in the next round. Will heed Mr. Kong's feedback, to be more organized..^^
8:58 PM
This week journal a bit special..the classroom we reported to also a bit special..different from our original classroom..It is located at the aeroscout room..and we used a total 4 hours to complete our practical lessons!!
There are a few of the tracking systems and all of them have their own benefits in implementing.
- Able to track the vehicles in the carpark
- Updated information on vehicles informations
- Save time and cost as it locates quickly
- Accurate inventory report
- Prevent theft and misplace of vehicles
In this week practical, we used one PC pre-loaded with Tag Manager and Aeroscout Engine, Tag, Tag Activator, Access Point, Location Receiver, Wireless Bridge and Exciter. Peter made us do hands-on with these equipments to set up a tracking system outdoor and show us on how the system response. Everything was shown clealy on the screen when my classmates actually brought 2 tags outside to place. The distance shown on the computer is roughly about the calculated distance that they placed away from each other.
The Tag Activator is use as a wireless bridge between the Tag Manager and software residing in the PC. I also learn from the lesson that the faster transmission interval that we set, the shorter the lifespan of the battery. We can determine that the tag activation is successful by seeing that the light on the tag is blinking.
10:26 PM
- For the EPC Version 1.3 supports:
- General Identifier(GID) GID-96
- Global Trade Item Number(GTIN)SGTIN-96 SGTIN-198
- GS1 Serial Shipping Container Code(SSCC)SSCC-96
- GS1 Global Location Number(GLN), SGLN-96 SGLN-195
- GS1 Global Returnable Asswt Identifier(GRAO) GRAI-96 GRAI-170
- GS1 Global Individual Asset Identifier(GIAI) GIAI-96 GIAI-202
Class 1 Generation 2 UHF Air Interface Protocol Standard "Gen II" also commonly known as Gen II standard, this standard defines the physical and logical requirement for a RFID system operating in the 860 MHz - 960 MHz frequency range. The system comprises Readers and Labels.
We did an experiment this week on the high frequency and low frequency RFID readers. In this experiment, we did the scanning of barcodes, comparing them to using the readers to scan the RFID tags, RFID tags scan much faster. In the experiment, we compared the time difference, it is actually more than 10secs difference in both readers, scanning all the item. We also saw the distance that RFID reader is able to detect and read the item compared to the barcode scanner. RFID reader reads much further depending on whether it has higher frequency or lower. RFID reader can only scan all at once. However, there is 1 thing that it is unable to scan in the experiment. The reader is unable to scan the tag when it is attached to metal. Hence, it can be improved by putting sponge in between them so that it can be detected..
10:00 PM
RFID technology brings a lot of advantages as compared to barcodes because it can carries a larger amount of data and information with the product when it travels through the supply chain. In one glance, vendors can clearly see the infomation in details and can bring lots of convenience. RFID also provides less errors, thus, it saves time and additional cost. In this way, more profits can be shared out among vendors.
Other advantages includes like having multiple items being read in a single scan rather than reading 1 by 1 which is a waste of time. RFID tag is just like a portable database of information for each tag which stores large information with it. Passive tag have a virtually unlimited lifetime whereas active tags can read from great distance. It has the ability to suvive in harsh conditions. The data on the tag can be modified throughout the life of the product. There is also a unique permanant ID embedded in each tag so that the information are all safe.
Wal-Mart says:
7:00 PM
There are a few different type of automatic identification systems in the market which use mostly sensor-based technologies. However, it is said that barcodes are to be replaced with RFID in the future due to its competitive advantages as compared to the other auto-IDs. Consumers benefit from shorter lines and can save plenty of time because RFID tracks at a very fast speed. They can also benefit from lower prices because of the efficiencies RFID brings to the supply chain.
Security and convenience have been added into automobile by using RFID technology for anti-theft immobilizers and passive-entry systems.
RFID technology are used to meet export regulations and optimize livestock value. Wild animals are tracked in ecological studies, and many pets who are tagged with it are returned to their owners.
Hospitals and pharmacies meet tough product accountability legislation with RFID; libraries limit theft and keep books in circulation more efficiently.
Shop houses use RFID technology to keep inventories at the optimal level, reduce out-of-stock losses, limit shoplifting, and speed customers through check-out lines.
More applications:
RFID reader: Consist of antenna, Computer to store memory, and integrated circuit
Types of Tags
Passive Tag
It does not require battery to operate as the power is generated through the radio frequency from the reader that is induced in the antenna. It is less costly, small in size and has a shorter range of operation out of the 3 tags.
It operates with the battery and it's life span is based on the battery's life itself. Though it has the longest range of operations(up to 1.5km in open area) compared to the other 2 tags, it is more expensive and larger in size.
Semi-active tags is assisted by battery and is the combination of both passive and active functions as its name suggested. The passive component in the tag will be triggered when it is energised by electromagnetic field. It has longer range as compared to passive tags.
9:10 PM
harlo~ this is a new beginning of my RFID journal that is going to be recorded down daily as a part of my online assignment grades..so must do consistently otherwise will deduct marks T_T jia you~
9:37 AM
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