3
1.3 FAQ
1. Direct judgement is not accurate in bi-directional
access
When IR function is enabled, only one direction should
be accessed at one time and avoid bi-directional
access, as the following figure:
2. Tag detection is not accurate when more than
one person pass through the passage
side-by-side
When more than one person pass through the passage,
they should pass through one by one and avoid
side-by-side, as the following figure:
3. No reaction when pass through too slow
Maximum time limit is set when passing through. If
walking too slow and exceed maximum time limit,
direction judgement will be disclaimed.
4. It will alarm when quickly reentry after pass
through
Passage filters tags when detecting, how long does
filtering take is decided by "tag filtering time". In the
period of tag filtering time, the same tag is processed
only one time. If the person passes through the
passage and then quickly reentry within "tag filter time",
reentry tag will be filtered, and causing alarm.
To ensure the accuracy of direction judgement,
immediate reentry is prohibited. Please wait 5 to 10
seconds after pass through.
5. Other person's information is displayed
First-come-first-serve rule is applied in tag detection.
When more than one person pass through the passage,
the information of the first detected tag will be reported.
If some one stands inside detection area, when other
person passes through the passage, the tag
information of whom stands inside detection area will
be reported.
6. How to deal with the case that one person takes
more than one card
"One person-one card, more cards-waiting time-out"
rule is applied in tag detection, i.e., when one person
passes through the passage, one tag information will
be reported, and the rest tag information will be saved
in cache and waiting for the next person or later
reported as time-out information when reached "tag
time-out".
When one person takes more than one card, the first
detected tag information will be reported, and the rest
tag information will be reported as time-out information.
Note:
)
Standing inside detection area for a long time
should be avoided!!!
Note:
)
Normal walking speed is recommended,
please do not stop inside the passage.
