Signal Types

Valid values for the type field on a Signal. Each type defines its expected value format, units, and applicable asset parts.

TypeDescriptionValue TypeUnitAsset Parts
CAMERA_CAPTURE Camera image capture for ML classification string DigitalLocationUnit CARGO_COMPARTMENT
FLOOR_USAGE Floor usage percentage from cargo camera double PercentUnit CARGO_COMPARTMENT
VOLUMETRIC_USAGE Volumetric usage percentage from cargo camera double PercentUnit CARGO_COMPARTMENT
IS_CAMERA_OBSTRUCTED Whether the camera view of cargo is obstructed boolean NoUnit CARGO_COMPARTMENT
IS_EMPTY Whether the trailer cargo compartment is empty boolean NoUnit CARGO_COMPARTMENT
CONTAINER_TYPE Type of container detected (e.g. GOCART, PALLET) custom NoUnit CARGO_COMPARTMENT
IS_CONTAINER_EMPTY Whether the detected container is empty boolean NoUnit CARGO_COMPARTMENT
OBD_LIFETIME_ODOMETER Total distance accumulated from OBD/ECU speed data since the telematics device was installed. Not the vehicle's dashboard odometer — resets if the device is reinstalled. double DistanceUnit ENGINE
OBD_DERIVED_TRIP_ODOMETER Trip-level distance calculated by the telematics device from OBD/ECU vehicle speed readings. Resets per trip/ignition cycle. double DistanceUnit ENGINE
OBD_TRUE_ODOMETER Actual vehicle odometer read directly from the ECU via manufacturer-specific diagnostic PIDs. Matches the dashboard reading. Only available on supported makes/models. double DistanceUnit ENGINE
OBD_TOTAL_ENGINE_TIME Cumulative engine operating time, either read from the ECU or derived from ignition-on time by the telematics device. double TimeUnit ENGINE
ECU_TOTAL_ENGINE_TIME Total engine run time read directly from the engine control unit. Higher precision than OBD engine time. double TimeUnit ENGINE
OBD_TOTAL_ENGINE_IDLE_TIME Cumulative time the engine has been running while vehicle is stationary (RPM > 0, speed = 0). double TimeUnit ENGINE