BLUEBOX CX Industrial UHF
Page 36 of 126
and optionally tag type, reading antenna and the detection timestamp) are
save in buffer and FIFO.
The
BLUEBOX
allows the execution of ‘on request’ functi
ons. During the
execution of these functions, the ‘continuous’ identification activity will be
suspended temporarily; the involved commands are relative to device
configuration and tag read/write specific activities.
If not required, the
‘continuous’ ident
ification activity can be disabled through
flags defined in the general parameters. In this case, the
BLUEBOX
will only
execute the ‘on request’ commands already defined above.
‘
T
est’ mode
s are also defined:
•
‘
RF
Reading’ test: in ‘continuous’ mode allows t
he user to easily and
quickly test the read range of the reader with fast beeping (100ms) the
buzzer for every identified tag. This ‘test’ mode is stored in non volatile
memory and its status is kept at every reader restart and until it is
disabled.
•
‘
RF Po
wer’ test: allows the user to easily and quickly test the minimum RF
output power needed to read a tag in a fixed position. The reader sweeps
from the minimum RF output power to maximum RF output power or until
it finds a tag, increasing the RF power of 1 dB every 500ms with fixed Q
selection algorithm and Q=0. It is an ‘on request’ function which
temporarily suspends the ‘continuous’ mode.
•
‘RF Sensitivity’ test: allows the user
to easily and quickly test the minimum
RF input sensitivity needed to read a tag in a fixed position. The reader
sweeps from the minimum RF input sensitivity to maximum RF input
sensitivity or until it finds a tag, increasing the RF sensitivity of 1 dB every
500ms with fixed Q selection algorithm and Q=0. It is an ‘on request’
functi
on which temporarily suspends the ‘continuous’ mode.
•
Read Reflected Power: allows the user to read the reflected power of the
antenna at a given frequency to check the antenna connection.
•
Read RSSI: allows the user to read the signal strengh received by the
antenna at a given frequency to check the presence of external RF sources.
The
BLUEBOX
integrates an RF antenna tuning feature which allows the usage
of the reader in many different environments and configurations. The auto
antenna tuning is done at every power on and during normal operations of the
reader based on RF tuning configuration parameters described in next sections.