Wavetronix SmartSensor 105 (SS-105) - User Guide - Manual (Page 75)

74 CHAPTER 7 • DATA COLLECTION
Figure 7.1 – Data Collection Setup
Step 1: Configure Data Storage
The Interval (Bin) Size option specifies the interval of time over which traffic variables
like volume, speed, occupancy and classification are aggregated. This type of data is called
interval data. The minimum interval allowed is five seconds.
By default, the checkbox next to Memory Overwrite is checked. This means that your
study will run indefinitely and repeatedly overwrite the flash memory onboard storage.
This means that in order to not lose collected data, you must download it to a log on your
computer before it is overwritten.
Alternatively, you can uncheck the Memory Overwrite checkbox. In this case, the study
will run only until the sensor’s flash memory has been filled with interval data.
Note
Once the flash memory buffer is full, it must be erased before it can be reused. Before
you erase the stored data, you will want to download the data to a log file on your
computer.
The third line under Step 1 displays the Flash Storage Time. This shows the duration of
interval data that a full flash buffer holds, calculated for you as a number of days and hours.
Because of the way flash memory is managed, the Flash Storage Time will vary based on
whether or not you have Memory Overwrite enabled.