Chapter 1
3
CAREU U1 Vehicle Tracker User Guide
1.4. Hardware Architecture
As hardware is concerned,
CAREU U1
is comprised of a micro-controller, regulator, GPS
receiver, GSM/GPRS modem, G-Force sensor, flash memory data storage, audio interface,
I/Os interface, serial ports and LED status indicators.
• Users can connect PC's HyperTerminal to the Diagnostic/setting port for the AVL
configuration.
• G-Sensor for car accident prevention, car tow-away warning and power management.
• The audio interface supports hand-free phone call.
• GPIO that connects to any customer monitoring points by door switch, anti-thief or
actuators.
• The A/D input that connects the analog signal sensor to the AVL, such as the fuel or
temperature sensor.
• With the built-in RF receiving circuit, an emergency push button is designable, and anti-
theft setting can be activated/deactivated.
• 1-wired interface, a reserved interface that is optional.
• The 1-wire interface facilitates the connection to temperature sensor, A/D devices, and
iButton devices.
SPI
FLASH
CAN
Transceiver
G-Sensor
I/O Ports
GPS
USB
Power
Bluetooth
Adapter
Optional
1-wired
Controller
RFID
Reader
External
Device
Barcode
Reader
RF Dialer
GSM
Modem
Audio
AMP
RS232
Transceiver
CPU
Audio
MIC
Speaker
S&T
Confidential
Documents