SmarTek Systems SAS-1 Setup Using SAS Monitor - Manual (Page 6)

SmarTek Systems (www.smarteksys.com) 6
Dspl Sens - Controls the display of data on the TAI display. Higher values of Dspl Sens
cause more acoustic data to be displayed. This parameter is only used for the SAS
Monitor and Setup Traffic Acoustic Image (TAI) display.
A typical value for this
parameter = 25.
Scale - This is a scaling parameter for converting acoustic power measurements
(intensity) into the levels of color (green) for the TAI display. Larger values of this
parameter would cause each acoustic power measurement to be shown in a darker shade
of green.
Mode - Sets the display mode for the SAS Monitor and Setup program. For each of the
available modes, the SAS-1 is told to send specific measurements for display.
Mode=1 .. Traffic Acoustic Image Mode (real time acoustic power and detection
indication). This mode is used to setup detection zones and to calibrate speed.
Mode=2 .. Multi-lane Flow Mode (vehicle volume, lane occupancy, and average speed
per lane). This mode displays and logs traffic flow time history.
Mode=3 .. Azimuth Detection Measurements Mode (peak amplitude and angle per
detection). This is a special mode used to display azimuth tracking measurements.
This mode is not used in highway monitoring applications.
Mode=4 .. Multi-lane Flow Mode (total vehicle volume, commercial truck volume,
tractor trailer volume, lane occupancy, and average speed per lane). This mode
displays and logs traffic flow time history.
Mode=7 .. Polled Multi-Lane Flow Mode (vehicle volume, lane occupancy, and
average speed per lane). This mode can log traffic flow time history for each SAS-1
polled. SAS Monitor and Setup can be set to poll up to 20 SAS-1 units.
Mode=10 . Programmable Button Response Display Mode using the visable message
window. This mode is used to display the response of a device to programmable
messages sent out by clicking the Programmable Buttons.
D-Mode - Default Operating Mode (not interactive) that the SAS-1 unit will fall back to
on power up, reset, or loss of data carrier detect when using modem communications.
LFP - Lane Finder Period specifies the amount of time (in minutes) used to collect data
and calculate the Lane Finder Function.
P-Alpha - Plot Alpha sets the amount of smoothing for the traffic flow measurements
display used in Mode=2 and 4 operation of SAS Monitor and Setup (1.0 for no
smoothing, .05 for significant smoothing).
Pwr Log – Power Logging Period specifies the amount of time (in minutes), that power
data (TAI display data) is logged when enabled.
Log – Logging indicator shows whether traffic flow message logging is enabled. This
flag shows “Off” in Red when message logging is disabled and “On” in Green when
message logging is enabled.
Detector Parameters: These parameters are used by the SAS-1 unit to adjust vehicle detection
sensitivity.
Max Det Sensitivity - Sets the SAS-1’s maximum detection sensitivity. Detection
sensitivity increases (“detection threshold”decreases) with higher values. The SAS-1
vehicle detector sensitivity always operates between the Minimum Detection Sensitivity