Blackbox-Driving Data for a number of drives
nds_data.RdThis dataset contains 28 drives ranging in length from just over 2 hours to just 45 secs.
Format
A tibble with 23187 rows and 37 columns
- drive
integer, identifier for a drive; a drive is defined as the time between starting the car and turning it off again.
- time_utc
POSIXct time stamp for each observation in UTC
- time_cst
POSIXct time stamp for each observation in Central time
GPS based measurements for each observation:
- gps_long
numeric, geographic longitude
- gps_lat
numeric, geographic latidude
- gps_elevation
numeric elevation above sea-level (in m)
- gps_heading
numeric direction of the car (in degrees)
- gps_fix
numeric
- gps_sats
integer of the number of satellits covering a position.
- gps_pdop
numeric total dilution of precision
- gps_hdop
numeric horizontal dilution of precision
- gps_vdop
numeric vertical dilution of precision
- speed_mph
numeric
- speed_source
character one of "gps" or "obd"
- distance_miles
numeric distance travelled during a drive (in miles)
Measurements by the on-board gyroscope:
- accel_x
numeric, forward acceleration (in g)
- accel_y
numeric, sidewards acceleration (in g)
- accel_z
numeric, upwards acceleration (in g)
- accel_event
binary, did an acceleration event occur? 0/1
- accel_event_cat
character, categorization of acceleration event in low, medium, and high.
- gyro_x
numeric, Angular rotation rate about the right-to-left axis (in degrees/sec).
- gyro_y
numeric, Angular rotation rate about the forward-to-backward axis.
- gyro_z
numeric, Angular rotation rate about the up-to-down axis.
- gyro_heading
numeric, Calculated heading utilizing compass data and gyro data (in degrees). Note that we use non-standard congruence classes for continuity of consecutive values.
- grav_x
numeric, lateral gravity (in g)
- grav_y
numeric, longitudinal gravity
- grav_z
numeric, gravity (up-down)
- roll
numeric, Angle about the forward-to-backward axis. 0 = level, positive = tilted to the left
- pitch
numeric, Angle about the left-to-right axis. 0 = level, positive = tilted downward (i.e., vehicle going downhill).
- engine_rpm
numeric, current engine revolutions per minute value.
- engine_throttle
numeric, percentage of engine throttle (0-100).
- cumulative_drive_dist_mi
numeric
- gps_minute
factor
- gps_heading_raw
numeric, gps heading modulo 360
- gyro_heading_raw
numeric, gyro heading modulo 360