Operating Features - iDTRONIC BLUEBOX ADVANT UHF Manual

M30 form factor uhf rfid system

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Table Of Contents

Table of Contents

In 'continuous' mode the

'parallel' and asynchronous activities: the tag identification (inventory) and the

communication with the 'host' system. The 'continuous' identification activity

interacts with the communication activity through a buffer that contains the code

of the last identified tags or that is empty indicating the absence of tags. Due to

synchronization and filtering reasons, the buffer is handled for each identified

tag by a parameter defined as 'hold time' (same as 'filter time' defined below,

to be set in the range of 0 ... 99 seconds or 0 ... 99 minutes, default value 1

second) and allows to extend 'artificially' the presence of the tag after it leaves

the antenna's influence area; this behavior is observable looking at the green

led status that is 'on' indicating the presence of tag. Through the OD 2180h it is

possible to get the data contained in the buffer.

The

BLUEBOX

handles also a 32 elements FIFO queue which is combined with

the 'filter time' general parameter (to be set in a range of 0 ... 99 seconds or 0

... 99 minutes, default value 1 second) that prevents the queue saturation in

case of a tag 'continuous' presence. When a tag is identified, the

verifies if it belongs to the list of read tags. If the tag do not belong to the list

(it is defined as 'new'), its code will be inserted in the queue, a filter time

assigned to the tag will be started. Otherwise (the tag belong to the list of read

tags), the

BLUEBOX

(the filter time is expired), the tag is defined as 'new' and will be processed as

described above, otherwise only the relative filter time will be rearmed. Through

the OD 2181h and 2182h, it is possible to get the data contained in the queue

and unload it.

Buffer and FIFO queue will hold onto a maximum of 82 bytes of tag

data. Once the 82 bytes of tag data limit is reached, the exceeded

bytes will be discarded!

The

BLUEBOX

allows the execution of 'on request' functions. During the

execution of these functions, the 'continuous' identification activity will be

suspended temporarily; the involved commands are relative to the read/write

specific activities of the supported transponders.

If not required, the 'continuous' identification activity can be disabled through a

flag defined in the parameters. In this case, the

'on request' commands already defined above.

'Test' modes are also defined:

• 'RF Power' 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

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