There are many types of sensors. When configuring a sensor (see sensor properties), the selection of sensor type depends on the device used and its principle of operation.
The table contains all sensor types currently available in the gTrack system. Moreover, here you can find units of measurement for the sensor values (either in metric or American/imperial systems), as well as short description for each sensor type.
The name of the sensor | Metrics | Description | |
Mileage sensor | kilometers (km) | miles (mi) | The sensor shows the distance
traveled. It can be used to detect trips and parkings. |
Relative odometer | kilometers (km) | miles (mi) | The sensor shows the distance
traveled since the previous message. It can be used to detect trips and
parkings. |
The name of the sensor | Metrics | Description |
Engine ignition sensor | On/Off or any | This is engine operation sensor that
is used in the report on engine hours as well as
in trips/stays detection and counters. It also allows to configure the fuel
consumption during idling. |
Alarm trigger | Sensor which non-nil value allows
marking a message as an alarm message (SOS). | |
Private mode | On/Off or any | This sensor is used to determine
trip type (Business, Private). |
Real-time motion sensor | On/Off | The sensor determines unit motion
state in real time. Its values are used to show the motion state in the Monitoring panel and on the
map (if the Replace unit icons with
motion state signs option is activated in the User Settings dialog). The
sensor can be based on such parameters as speed, ignition, engine
revolutions, etc. Its parameter can contain formulae, which allows using
validation. |
Custom digital sensor | On/Off or any | This sensor can register two states
(on/off, activated/deactivated, etc.). |
The
name of the sensor | Metrics | Description | |
Voltage sensor | volts (V) | The sensor shows some parameter
value (not necessarily voltage). It can be used to analyze input data. | |
Weight sensor | tons (t) | pounds (lb) | This sensor is used to detect
weight of transported cargo. |
Accelerometer | g | This type of sensor is used to
measure acceleration at X, Y, Z axes and immediately detect a collision of
cars. | |
Temperature sensor | Celsius
degrees (°C) | Fahrenheit
degrees (°F) | The sensor shows the value of
temperature or some other parameter. It can be used to analyze input data.
See the example of configuration. |
Temperature coefficient | Temperature coefficient that
affects fuel level calculations at different temperature in the tank. See
the example of configuration. | ||
The name of the sensor | Metrics | Description |
Engine revs sensor | rounds
per minute (rpm) | The sensor displays engine speed. |
Engine efficiency sensor | any | The sensor determines the
coefficient when working under load used for the mathematical calculation of
the fuel consumption. Can function as a reduction coefficient if its values
are between 0 and 1. |
Absolute engine hours | hours | The sensor registers the total
amount of engine hours. It also allows to configure the fuel consumption
during idling. |
Relative engine hours | hours | The sensor registers the amount of
engine hours with regard to the intensity of work. See the example of configuration. It also
allows to configure the fuel consumption during idling. |
The name of the sensor | Metrics | Description | |
Impulse fuel consumption
sensor | liters
(l) | gallons
(gal) | The sensor shows the accumulated
value of impulses. To convert the incoming value into the amount of consumed
fuel, the calculation table should be applied. For such sensor type the
calculation table is applied to the difference between two adjacent messages.
After sensor creation and adjustment it is necessary to enable impulse fuel consumption sensor on the
corresponding tab. Note that if a device sends
not an accumulated value of impulses, but the number of impulses between the
messages, it is necessary to use instant fuel consumption sensor. |
Absolute fuel consumption
sensor | liters
(l) | gallons
(gal) | The sensor detects fuel consumption
over all period of vehicle operation. After sensor creation and adjustment it
is necessary to enable absolute fuel consumption sensor on the
corresponding tab. |
Instant fuel consumption
sensor | liters
(l) | gallons
(gal) | The sensor shows fuel consumed from
the previous measure (message). After the sensor creation and adjustment it
is necessary to enable instant fuel consumption sensor on the
corresponding tab. |
Fuel level sensor | liters
(l) | gallons
(gal) | This sensor is placed in the tank.
After sensor creation and adjustment (see examples) it is necessary to enable fuel level sensor on the corresponding tab. |
Fuel level impulse sensor | liters
(l) | gallons
(gal) | The sensor detects the number of
impulses in a period. Fuel level in the tank is calculated from the received
values. |
The name of the sensor | Metrics | Description |
Counter sensor | any | The sensor can show passenger
traffic or count the number of some actions such as opening/closing the door,
etc. There are several types of counters: — instant (counts the number from the previous to the current message), — differential (shows total number), differential with overflow (2 bytes), — switcher from OFF to ON (counts the number of activations), — switcher from ON to OFF (counts the number of deactivations). Besides, you can enter any unit of measurement for this sensor. |
Custom sensor | any | This is a custom sensor for which
you can set any unit of measure. Its values can be displayed in the unit
tooltip, in the extended unit information or sent to report. |
Driver binding | This sensor can be used to detect
drivers assigned to units. | |
Trailer binding | This sensor can be used to detect
trailers attached to units. | |
Passengers sensor | This sensor supports detection of
passengers entering and leaving a vehicle. |