How to estimate how many Brickstream 2D or 3D sensors are required for a store? : Tapway

First and foremost, these are the absolute requirements you need to get from the customers before proceeding:

Once these info are collected, kindly use the following Brickstream Coverage Model sheet to estimate coverage:

Now, you can also refer to this template to estimate number of sensors that is required: https://drive.google.com/open?id=0BxYTVEf6owJkdjZFQy1lV05aWDg

These are the steps you need to do to estimate number of sensors:

1. Use the Brickstream Coverage Model, enter Lens type, Ceiling/Entrance Height and X Tilt.

2. Get the max width

3. Enter max width in Tapway Brickstream Estimation template under "Per Sensor Coverage"

4. You should be able to get the 'Ratio' as well as 'No of Sensors'

Important Notes

Most of the stores have at least 3m ceiling height which is good for tilting. I won’t recommend more than 10 degree of tilt under 3m; for those with at least 3m especially those between 3.5m – 4.2m, you can tilt up to 25 degree on X-axis to extend greater coverage area without impacting its accuracy.
Please take note that you need to purchase Advanced Counting Key for more than 10 degree tilting.

Please take note that when you apply tilt to the sensor, the position of the sensor will not be in the middle center anymore, refer to picture below. The big green dot at the bottom represents the exact location of the sensor after tilted 20 degree on X-axis. This is an example for a Brickstream 3D 2.5mm @ 3.5m with 20 degree X-tilt. Although after tilt, you are getting maximum width of coverage at 5.3m at top area but take note that this is not the actual area where you can draw count line. Hence, always try to position the count lines in the middle. In this case, the effective width coverage for this sensor is 4.6m (take the average width value) – take this as the actual reference in estimating number of sensor needed. With this in mind, you may want to review again by looking at the store layout to determine the best location for installations and to tilt or not to tilt.

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