GPRS+GSM AVL

The ET512 GPS+GSM 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 ET512 AVL support both GPS and GSM 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.

GSM Data 
•	Frequency: 850/900/1800/1900Mhz
•	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
•	GPS positioning, charge free month rent
•	Remotely controllable oil cutoff\power-off lock
•	Telephone number filtering function
•	Vehicle traveling data record inquiry
•	Vehicle alarm voice monitoring
•	Main power supply off alarm
•	Periodical GPS terminal inspection
•	Real time vehicle position monitoring
•	Vehicle position inquiry through monitoring center
•	Mobile based vehicle position inquiry
•	SMS authorization mode
•	Brand new GPS\GSM module with excellent performance and preferred prices
Interface 
•	GSM 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)