Wavetronix SmartSensor 105 (SS-105) - User Guide - Manual (Page 55)

54 CHAPTER 5 • SENSOR SETTINGS
Figure 5.4 – Data Collection Tab
˽ Interval Data – Allows you to specify the length of your intervals as well as how those
intervals are stored. The interval refers to the time (in seconds) that traffic data is ag-
gregated (minimum interval is five seconds). Interval data is stored directly into the
sensor’s SRAM memory, which is volatile and will not persist after a power cycle. The
number of intervals is limited to 246. You can also tell the sensor to move the data
from SRAM to the sensor’s flash memory by clicking the Store in Flash Memory
check box. This protects the data because flash memory persists after power cycles. The
capacity in flash is about ten times greater than SRAM. If the Store in Flash Memory
box is not checked, the interval data will remain in SRAM until it is overwritten. Flash
storage management features are explained in greater depth in the Data Collection
Setup section of chapter 7.
˽ Vehicle Classification – Lets you customize vehicle classifications by length. Enter the
maximum length amounts for small and medium class vehicles in the active text boxes
and SmartSensor Manager will automatically determine the minimum lengths.
˽ Lane Setup – Allows you to change specific lane information such as lane name and
direction of travel, for your own information and for identification.
You can also change scale occupancy (loop size) and scale speed (loop spacing). The
entry in these columns for each lane represents the manual scaling applied to the oc-
cupancy/duration and speed data. The occupancy scale factor is the ratio of each lane’s
loop size to the default loop size. The speed scale factor is the ratio of each lane’s loop
spacing to that of the default loop spacing. You can modify the scale factors by clicking
on the arrows to the right of each box.