Tachosys Digifobpro User manual

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Digifobpro - Enforcement Functions
Digifobpro User Instructions - Enforcement supplement Page - 2
Downloading VDO 4H Data 3
Vehicle Unit Line by Line Activity Data 4
Vehicle Unit Calibration Data 5
Analysing 4H Speed Data 6
Using slider bars to define 4H Data Periods For Detailed
Analysis
7
Table of contents

Digifobpro - Enforcement Functions
Digifobpro User Instructions - Enforcement supplement Page - 4
Downloading VDO 4hz data
ecent Siemens Tachograph units provide short periods of speed data
recorded at 4hz. The data is excellent for applications such as Collision
investigation. In order to include the 4hz data in a Tachograph download use
the Custom download option and turn on the ‘VDO’ option. This will create an
additional file prefixed with a ‘S’ (special) which will include the 4hz data. The
4hz data can be analysed on the digifobpro itself, see ‘4Hz Speed Data’ on page
6. The digifobpro will have two entries for the same vehicle and the 4hz data
will be contained in the entry displaying T EP 18.
It is possible to download just the 4hz data by reducing the number of days on
T EP 2 to zero and deselecting T EPs 3,4 and 5. The download will take
approximately 1 minute.
Vehicle Unit Activity Data
In order to provide detailed line by line analysis of the VU data digifobpro
allows you to drill down into a number of data types.
Simply navigate from the Main Menu to ‘Vehicle Unit’. Use the ‘File Viewer’
option followed by the Up or Down arrow to navigate to the required file
identified by the vehicle licence number in the top left corner. Press the OK
button whilst your chosen file is displayed and select ‘Activity Data’. Press the
OK button.
You will now see a day by day entry of the Tachograph data in reverse
chronological order. You can move through the days using the Up and Down
arrows. In the bottom right of the screen you will see the total number of days
summarised.
The summary screen displays;
• Date
• Mileage (km)
• IW Data (Insertions and Withdrawals of card)
• Activities
• Work Entries
• Conditions
Digifobpro User Instructions - Enforcement supplement Page - 5
Drilling down into Activity Data
Display the date you wish to analyse by using the UP and Down arrows. Now
you can drill into any of the summarised headings by pressing the OK button
and navigating to the required heading using the Up and Down arrows. Click
the OK button to drill into the data and using the Up and Down arrows to navi-
gate all of the available records. Use the eturn arrow to get back to the sum-
mary headings for the required day.
Vehicle Unit Calibration Data
Simply navigate from the Main Menu to ‘Vehicle Unit’. Use the ‘File Viewer’ op-
tion followed by the Up or Down arrow to navigate to the required file identi-
fied by the vehicle licence number in the top left corner. Press the OK button
whilst your chosen file is displayed and select ‘Calibration’ by using the UP and
Down arrows. Press the OK button.
You will now see the main header information for the Tachograph unit . A bar
indicates the number of calibration records to view. Click OK to scroll through
the historical records using the Up and Down arrows.

Digifobpro - Enforcement Functions
Digifobpro User Instructions - Enforcement supplement Page - 6
4Hz Speed Data
Simply na igate from the Main Menu to ‘Vehicle Unit’. Use the ‘File Viewer’ op-
tion followed by the Up or Down arrow to na igate to the required file identi-
fied by the ehicle licence number in the top left corner. Press the OK button
whilst your chosen file is displayed and select ‘4Hz Speed Data’ by using the UP
and Down arrows. Press the OK button.
N.B. You will only be able to iew 4Hz data on records where TREP 18 is in-
cluded and this is only currently a ailable from VDO Tachograph Units.
The 4Hz data is split into six records each depicting two minute periods of
dri e at 4Hz and including a braking e ent which ends in the ehicle coming to
rest. See below for details of the function of each of the on-screen controls
which can be accessed using the UP and Down arrows.
Icon Function within 4Hz Speed Trace graph
Na igates between the six 4hz data records
Na igates in the opposite direction
Zooms out one step from the current iew. Steps are; 1 second per
screen pixel and one quarter of a second per screen pixel.
Zooms one step into the current iew. Steps are; 1 second per
screen pixel and one quarter of a second per screen pixel.
Shifts to the left effecti ely mo ing back in time for the period.
Shifts to the right effecti ely mo ing forward in time for the period.
Digifobpro User Instructions - Enforcement supplement Page - 7
4Hz Speed Data continued:-
Displaying the breakdown of user defined periods in 4Hz data
When you zoom into a 4Hz data record you are able to iew the 2 minute pe-
riod at the full 4Hz granularity. If you zoom in a second time using the ‘+’ icon
the screen control icons will change and two ertical bars appear. You must
ensure that the period you would like to analyse further is as close to the mid-
dle of the screen as possible before zooming.
The left of the two bars is identified as ‘I
II
I’ and the second as ‘II
IIII
II’. By using the
left hand control icons (see fig 1.) it is possible to mo e the ertical bars to a
start point and an end point. As you mo e the ertical bars the top of the
screen displays the deceleration between the start and end points and the dis-
tance in metres that this represents. By using the ‘’ icon you can additionally
iew the speed at the start and end points and elapsed time for the period in-
clusi e of the start and end points.
Fig 1.