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Low Cost Real Time GPS Based Location Recorder And Display System With SD-CARD On PSoC Microcontroller
Aim of the project
• In today’s world vehicle tracking has become a big necessity
• A vehicle tracking system is an electronic device installed in a vehicle to track vehicle’s location and display system using SD-card
• The information we are stored in SD-Card for the later analyses to download the personal-computer.
• Aiming for low cost and easy operation
Existing methods
• Lojack
-Uses radio frequency transmitter but not implemented in India
• LORAN
-Uses radio frequency transmitter not implemented in India
• DGPS
-Increases the accuracy but is quite expensive
• Most of small transport companies don’t use any vehicle tracking system at all due to its high cost and complex user interface.
Novelty in my solution
• Using PSoC (programmable system on chip) which is low cost and has several configurable blocks which can be used to add more features
• Sd card is interfaced With microcontroller to retrieve the data.
Basic principle
• The position is taken by the GPS receiver through GPS Satellite
• Sd-card and RTC interfacing with the microcontroller.
Specifications
• RS232 interface between GPS Rx and PSoC using first UART
• Second UART of PSoC for RS232 interface
• Can retrieve data at any time using sd-card
• Power can be derived from Vehicle battery itself
• Programmable system on chip (PSoC)‏
• The PSoC architecture
• PSoC interconnect view
• Algorithm steps
Block Explanation
• SD-Card is used to store the GPS locations
• GPS Receiver
-used to receive the satellite navigational data and calculate the position of the vehicle
• PSoC CY8C24966
- used to interface the GPS receiver with GSM modem
Tools and Language Used
• Tools Used
-PSoC Designer software to develop the code
• Hardware used
-CY8C29466-24PXI microcontroller
-GPS receiver
-GSM Modem
-Mobile phone for sending and receiving sms
Applications
• Mainly used for fleet control
• Stolen vehicle searching
• Race control in sports
• Animal tracking (wild life study)‏
Advantages over other scheme
• Can be used for air applications as it is using the satellites for positioning
• No access fee required to access the navigational data.
• Reliable vehicle tracking.
Disadvantages
• Still expensive
• Limited by the resolution (few tens of meters)‏
• No map based software hence for city applications not suitable.
• Needs care and handling (or requires rugged packing on top of the vehicle)‏