AutoGRAPH-GSM • USER MANUAL
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TechnoKom © 2015
USB Port
The USB port embedded into controller is intended to:
•
configure and check the performance of the controller by means of the configuration
program – GSMConf;
•
read data from the device so as to deliver them to the AutoGRAPH Dispatch Software;
•
update processor microcode (firmware) of the device;
• use the controller in the «GPS mouse» mode.
When using the device as a GPS mouse, the tracker, which is connected to the USB port of
a PC, laptop or PDA with a data cable via virtual serial port (СОМ port), transmits the location
data in RMC format through the NMEA protocol once per second. This enables the users to
locate the object equipped with the AutoGRAPH-GSM using software such as OziExplorer,
Google Earth Plus/Pro, 2GIS for PC 3.0, Garmin, Navitel and many others. For details please
refer to «Using the GPS mouse» document.
CAN Bus (SAE J1939/FMS)
The CAN bus is an industrial network standard primarily designed for interconnection of
various actuators and sensors in a single network. It is used in the automotive industry as a
management and control line. The CAN interface of the controller may be connected to the
CAN bus of a vehicle and is intended for use with SAE J1939 / FMS standard protocol. This
standard is widely used in vehicles of well-known truck manufacturers, such as SCANIA,
MAN, VOLVO, DAF, IVEKO, RENAULT, MERCEDES (DaimlerChrysler), KAMAZ and MAZ
trucks of latest models etc. Advanced users can set up the tracker to receive data in any CAN
protocol using the GSMConf program.
Use of the two-wire CAN bus enables quick connection and allows access to a great number
of parameters directly from the sensors of vehicles.
Using the CAN bus, the following information would become available: vehicle speed, cruise
control status, accelerator pedal position, brakes and clutch switch statuses, fuel consumption,
fuel level in tanks (up to 6 sensors), engine speed, service distance, engine hours, engine
coolant temperature, oil and fuel temperatures, total vehicle distance and vehicle distance
per day and axle weight. Furthermore, it enables monitoring of some custom parameters not
covered by SAE J1939 / FMS standard.
RS-485 (TIA / EIA-485-A)
RS-485 (TIA / EIA-485-A) is a data transfer standard for data transmission via a two-wire
serial channel. This bus serves to simultaneously connect up to 32 different devices and
sensors compatible with the controller’s firmware by two wires.
The controller is equipped with two RS-485 buses. Additional RS-485-2 Bus is designed for
connecting a photo camera to the tracker.
The bus enables users to connect up to 8 fuel level LLS sensors, as well as Escort-TD,
Strela-D485, DUT-E-485, DT7.3-06, UZI-1.х and other sensors, and some extra expansion
modules to extend the controller’s functions, e.g. display for indication and messaging with a
vehicle driver, passenger traffic metering unit, expansion modules for discrete and analogue
inputs, barometrical altimeter, RS-232/RS-485 converters, etc.
The RS-485 port of AutoGRAPH-GSM controllers support MODBUS protocol that enables the
users to connect the controller to the thermal sensors, which transmit data via this protocol.