The important thing to use in this project is :
GPS Module:
In this project the usage of GPS with the microcontroller
is very essential and need to be understood very carefully. Since the previous
GPS provided which are also an integrated board that have too many parameters
instead of only one general purpose of getting the coordinate location, we
decide to use a simpler GPS like Parallax GPS Receiver. We use this module
because it is much simpler and easy to be programmed instead of the previous
one. Besides, it is also due to the reason that the architecture of the GPS
itself.
The GPS Receiver Module provides standard, raw NMEA0183
(National Marine Electronics Association) strings or specific user-requested
data via the serial command interface, tracking of up to 20 satellites, and
WAAS/EGNOS (Wide Area Augmentation System/European Geostationary Navigation
Overlay Service) functionality for more accurate positioning results. The
Module provides current date, time, latitude, longitude, altitude, speed, and
travel direction/heading, among other data, and can be used in a wide variety
of applications, including navigation, tracking systems, mapping, fleet management,
auto-pilot, and robotics.
Specification:
·
Fully-integrated,
low-cost GPS receiver module with on-board, passive patch antenna.
·
Single-wire, 4800 baud
Serial TTL interface to BASIC Stamp®, SX, Propeller, and other processors.
·
Provides either raw
NMEA0183 strings or specific data requested via the command interface.
·
Requires single +5VDC
supply @ 115mA (typical).
·
0.100” pin spacing for
easy prototyping and integration.
- The
navigation update rate of the GPS Receiver Module is once per second.
- •
High sensitivity (-152 dBm for tracking and -139 dBm for acquisition).
- The
Module contains a built-in rechargeable battery for memory and real-time
clock back-up.
- On
average, the Module has a +/-5 meter position accuracy and a +/-0.1 meter
per second velocity accuracy.
RF module
These RF modules are
adopting RF integrated circuit with super-heterodyne working mode and SAW
resonance. Its features are stability and strong ability of anti-jamming. It is
widely used at some spot of industrial control that has high requirement.
RS-232
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