
Intel® Responsive Retail Sensor (RRS) Hx Series Sensor
User & Installation Guide
August 2018
Page: 34
Revision 0.4
8.3.4
Deep Scan (Single Target)
This Use-
Case illustrates a thorough “Deep Scan" using the most robust RF link to insure
that all tags within the coverage area are successfully read at least once. This mode
also uses suppression to allow weaker tags to respond without competing with the
multiple responses of other tags and is recommended only in situations where multiple
reads per tag is not required. Sessions 2 and 3 are used to provide longer suppression
times while scanning. Alternating between sessions 2 and 3 (and between A and B)
allows for a rapid recovery when rescanning the tag population. This use-case insures
that even the most distant tags with the weakest backscatter signal can be eventually
read. Figure 6 illustrates the message exchange involved in this use case.
Figure 13 Deep Scan Data Flow