RFID Group Progress Leader: Muhammad Salman Younas Team: Jawad Khalil Sheikh Saad Al-Shaalan Muhammad Al-Khamees

Identification technology that uses RF Tags come in all sizes and shapes Two main types of tags – Active: own power source( feet)($10-$80) – Passive: powered by reader(2inches-30feet)($0.20-$3) RFID tags are small radio transmitters and receivers Mainly three frequency types – LF: kHz – HF: MHz – UHF: MHz What is RFID?

Low Frequency – good penetration of materials (including water) – less susceptible to effect of metal – longer read range than HF – maximum read range: 12 inches High Frequency – supports anti-collision read – tags lighter and cheaper than LF tags – more memory capacity than LF tags – maximum read range: 4 feet Ultra-High Frequency – behave more like light waves than radio waves – perform poorly with water and metal – read range: 10+ feet RFID Tag Frequencies

Read/Write range Materials present in surroundings Tag memory needed Cost Tag form (size, shape, etc..) Host application and Communication Protocol Power Consumption Antenna size Interference Factors Affecting Reader Choice

Skyetek M1 Reader (Storage Room) Intensecomp Reader(Products Gate) Readers Used

Achieved reader connectivity Performed Single Read Performed Anti-collision read Found maximum tag read ranges Testing in presence of water and metal Ran sample codes – Skyetek M1 reader: C, Java, C++, VB – Intensecomp reader: VB.NET, Java, VB, C Tasks Completed

Maximum tag ranges Skyetek M1 Reader Tag Ranges 4-5 cm5-7 cm10-12 cm

Larger the tag, greater the range – more signal reflection More the tags, less the range – less power supplied per tag Presence of water and metal – water and metals absorb HF waves – reduces range greatly Skyetek M1 Reader Tags

Hardware – Reader connectivity problem power supply was not connected properly – No tags read problem internal antenna was not connected – Read range problem built own antenna Software – Java programs not running had to add Java commAPI classes Skyetek M1 Reader Problems

Building the antenna Single Loop Antenna Copper Tape External Antenna Skyetek M1 Reader (Hardware)

Adjust C3 and C4 values to obtain maximum range Skyetek M1 Reader (Hardware)

Antenna built and test read was successful Skyetek M1 Reader (Hardware)

Reading range from antenna very poor – use copper tape for antenna material without antenna with antenna Skyetek M1 Reader (Hardware)

Java Application Skyetek M1 Reader (Software) SkyeTekCommSkyeTekMessagingSkyeTekListenerCRC16SkyeTekApplication SkyeTekCommImpl SkyeTekSerialComm SkyeTekReader SkyeTekTag Debug Format messagingreaderutilitydemo skyetek comm Numbers SkyeTekException

Java Application Skyetek M1 Reader (Software)

Java Application Skyetek M1 Reader (Software)

Detecting tags depends greatly on their position Skyetek M1 Reader (Software)

Antenna Multiplexer SkyePlus MXH Antenna Multiplexer Use multiple reader connections – a COM port needed for each M1 reader Skyetek M1 Multiple Readers

Main application is in C# (.NET framework) RFID application – Skyetek M1 reader: Java – Intensecomp reader: VB.NET Intensecomp application can be easily integrated Skyetek M1 reader – main application running – needs to read tags – will call Java program to run Skyetek M1 Integration

Product Gate if (new item at product gate) { if (product type of item not in DB) ask user to add product type; add item to DB; cancel item from expected order list; if (expected order list == 0) order received successfully; } Skyetek M1 Integration

Storage Room while (true) { read all tags in room; if (count not equal to previous count) { if (tagID not in delivery list) theft detected; } Skyetek M1 Integration

Hardware: Antenna built but range problem Software: Java application complete Next task: Integration into main system Expected completion date: Dec 18, 2006 Conclusion

Q u e s t i o n S ? ?