Racelogic VBOX LITE Hardware & Software Manual - page 16
VIDEO VBOX LITE MANUAL
Page | 16
22 December 2009
Logging Modes
The Video VBOX LITE supports two logging modes, they are as follows:
Log Only When Moving.
This is the default setting of the Video VBOX LITE. The VBOX will automatically start logging data once it
detects movement greater than 2.5 km/h, and will stop recording when the speed drops below 2.5km/h, or
the ‘RECORD’ button is pressed. (If the button is pressed to stop logging the box will then be in manual
logging mode, see below).
NB: The minimum speed at which the Video VBOX LITE starts and stops logging is configurable and can be changed
under the ‘Log Settings’ drop down in the scene properties in the Video VBOX Setup Software. The length of time the
box waits when this speed is reached before closing the file can also be configured. See the ‘Scene Properties’ section
for a more detailed description.
Manual Logging.
To enable manual logging, press the ‘RECORD’ button on the front of the unit. When this is done the Green
‘RECORD’ LED comes on and the Video VBOX LITE will log data until the logging button is pressed again or the
media runs out of space. To return the box to ‘Log only when moving’ the media needs to be removed then
replaced. The Video VBOX LITE will then have reverted back to log only when moving mode and will begin to
log immediately if the vehicle is still moving, or if the vehicle is stopped, when the vehicle moves away again.
NB: If the card is removed while the Video VBOX LITE is writing data to it, there is a risk that the data file may be
corrupted resulting in loss of video data or a corrupt video file. As a default ‘Log only when moving’ is the logging
mode selected, make sure to wait a short time after the vehicle has stopped for logging to finish. When this happens
the unit will beep and the green ‘RECORD’ light will go off.
If ‘Log continuously’ is selected, press the ‘RECORD’ button on the front of the unit. This will ensure that the current
file is closed and will help to safeguard against data corruption. If the power supply to the box is removed before this
happens, the tank circuit will provide power for approximately 15 seconds and close the current video file correctly.
Logging during Low Power. e.g. Cranking:
When the Video VBOX LITE is logging it is capable of detecting when the voltage supply
has dropped to a level at which it is unable to provide power to the video cameras. At
this point the box will emit a warning beep and a low power symbol will flash at the
centre of the recorded video.
If nominal power is regained within 5 seconds the box will stop beeping and continue to log. If power is not
regained the current video file will be closed. If after a period of time power is regained a new video file will
be created and logging will continue.
Logging Rates
The Video VBOX LITE logs data at a fixed rate of 10Hz (10 samples per second).
File Management
The Video VBOX LITE will log to a FAT32 formatted SD card. The Video VBOX LITE will search for and detect a newly
inserted card and record to the newly connected device when the vehicle moves or the logging button is pressed.
A new video (AVI) and data (VBO) file are created in a ‘media’ folder on the SD card every time the vehicle begins to
move or the ‘REC’ button is pressed. The current files are closed when the vehicle comes to a stop or the ‘REC’ button
is pressed again. The filename format is as follows: VBOX####.VBO, where #### represents an incrementing number.
NB: If the size of the video file reaches 2 Gb it will be closed and a new file will be opened. This is due to a 32 bit file
indexing limitation which prevents the creation of files bigger than approx 4Gb. The 2Gb size also makes the recorded
video files large enough to cover the length of most races without a new file being opened.