GPRS+GPS AVL

The ET511 GPS+GPRS AVL has designed as industrial product for vehicle, it’s a device that makes use of the Global Positioning System (GPS) to enable a business or agency to remotely track the location of its vehicle fleet by using the Internet. These devices combine GPS technology, cellular communications, street-level mapping, and an intuitive user interface, with the ostensible goal of improving fleet management and customer service. For example, a company using an AVL system is able to pinpoint the longitude, latitude, ground speed, and course direction of a given vehicle. The vehicle's location can be quickly found and it could be rerouted to provide timely delivery to a nearby customer. AVL systems also enable companies to structure delivery routes more efficiently by compiling a database of vehicle information, including location of customers in relation to established delivery routes
The ET511 AVL support both GPS and GSM, GPRS connection, The GPS receiver captures position data from the satellites, computes the position of the vehicle and sends this information to a central base station, using SMS. This information is collected by the built-in web-server at the base station. If the optional storage module is installed, then location data can be stored when the vehicle is out of range of the cellular operator and retrieved later.

GPRS Data 
•	Frequency: 850/900/1800/1900Mhz
•	Bandwidth: Up to 115.2Kbps
•	GPRS Class 2~10
•	Code plan: CS1~CS4 
•	Complied with SMG31bis specifications 
GPS
•	Advanced GPS L1 technology
•	Unfiltered, unsmoothed pseudo range measurement data for low noise, low multi-path error, and high dynamic response
•	Very low noise L1 measurements with 1 mm precision at 1 Hz
•	12 Channels L1 C/A Code, L1 Full Cycle Carrier, WAAS/EGNOS1
•	WAAS/EGNOS differential positioning accuracy typically <3 m 3DRMS2
Static GPS surveying
•	Horizontal . . . . . . . . . .. . . . . . . . . . .±5 mm + 0.5 ppm × (baseline length) RMS
•	Vertical . . . . . . . . . . . . . . . . . . . . . . ±5 mm + 1 ppm × (baseline length) RMS
Kinematics surveying
•	Horizontal . . . . . . . . . . .. . . . . . . . . . ±10 mm + 1 ppm × (baseline length) RMS
•	Vertical . . . . . . . . . . . . . . . . . . . . . . . ±20 mm + 1 ppm × (baseline length) RMS
Professional Functions
•	Acquire the location of vehicle and tracking vehicle real time.
•	The location of vehicle sent to mobile or control center once per second.
•	Record the trace of vehicle. The trace of vehicle can be recorded to memory stick.
•	Real-time communication with any telephone
•	Emergency alert.  Ask help when in risk such as in violence.
•	Remote control by owner.  Authorized owner can control vehicle by send messages to terminal.
•	Following messages is supported: shut down power, close door, close windows, etc
•	 Self checking. Checking states of terminal, such as GPS antenna, connectivity, etc.
•	R&TTE and GCF certified
Interface 
•	GPRS Antenna: 50ohm/SMA/Female 
•	GPS Antenna: 50ohm/SMA/Female 
•	UIM/SIM card: 3V 
Power Supply 
•	Voltage: +12VDC(+9~40VDC) 
•	Power consumption
   Max. current: 300mA@+12VDC
   Idle: 25mA@+12VDC 
Application Field:   
•	 Fleeting management acquire the location and trace of every vehicle, Send command to drivers of any vehicle in anytime.
•	In vehicle security, anti-theft, Dial up the default telephone number, settled by owner such as police, when the vehicle is in danger such as being robbed.
Others 
•	Mechanical: 93x54x23
(not include antenna) 
•	Weight: 150g 
•	Operation temperature: -40~+70ºC 
•	Related humidity: 95%(non-condensing)