Advanced Mobile Phone Signal Jammer for GSM, CDMA and 3g

Networks

Under the Guidance ofSmt.V.Lavanya,M.TechAssistant Professor

Presented byM.Bharathi Devi(09331A0469)N.Karteek(09331A0480)S.B.S.Amarnath(09331A04A2)B.Chandini(10335A0402)

OVERVIEW OF 1st REVIEW

• Mobile jammer is used to prevent mobile phones from receiving or transmitting signals with the base stations.

• Jammers are used to block these frequencies used for communication.

Block diagram

TOPICS TO BE COVERED• ARM7 Processor• Architecture• Software Required• Jammer Block Diagram• LCD Interfacing• Driver Circuit• Relay Interfacing• Applications• Advantages

ARM7 PROCESSOR• 32 bit RISC*processor.

• High Code density.( Less memory)

• Load store architecture.

• Variable cycle execution for certain instructions.

• Thumb 16 bit instruction set.

• Conditional execution.

ARM7 LPC2148

Architecture

• VON NEUMANN Architecture

• The ARM7TDMI processor has two instruction sets:

1.the 32-bit ARM instruction set.

2.the 16-bit Thumb instruction set.

PIN OUT OF LPC214X

Software required

• Embedded ‘c’ programming

• Keil µvision compiler

• Proload 11

JAMMER BLOCK DIAGRAM

LCD INTERFACING

Driver circuit

RELAY INTERFACING

ADVANTAGES

• Sophisticated Security.

• No loss of data due to back up battery.

• Works for both GSM and CDMA networks

APPLICATIONS

• Gas Stations• Oil and Gas Storage Facilities • Hospitals• Conference Rooms• News Conference Rooms• Libraries• Military Units, Government Unit…

references

• www. howstuffworks.com

• Electronics for you

• Electrikindia

• www.wineyardprojects.com

Topics to be covered in the next review

• Other interfacing circuits.

• Working model of Mobile Jammer.

references

• www. howstuffworks.com

• Electronics for you

• Electrikindia

• www.wineyardprojects.com

Thank yo

u