ThingMagic Mercury API v1.23.0 - Manual (Page 25)

Reading Tags - The Basics
Level 1 API 25
Reading Tags - The Basics
Read Methods
Reader Object provides multiple ways of reading/inventorying tags. The tag reading
methods:

Reader.read()

Reader.startReading()
issue one or more search commands to the device to satisfy the user’s request for
searches of a particular duration, duty cycle, antennas, and protocols.
The result of a read operation is a collection of TagReadData objects, which provides
access to the information about the tag and the metadata associated with each tag read.
The default read behavior is to search for all tags on all detected antennas using all
supported protocols.
Level 2 API can be used for advanced control over read behavior,
such as setting antennas (see Antenna Usage for more details), protocols and filtering
criteria used for the search. These are controlled by the ReadPlan object assigned to the /
reader/read/plan parameter of the Reader Configuration Parameters .
Note
Not all antennas are detectable by the readers. The antenna needs to have
some DC resistance if it is to be discovered by the antenna detection circuit.
If, when using the Level 1 read functionality, reads are not occurring it is
possible the antennas are not detectable and require explicit setting in the
ReadPlan .
Reader.read()
The read() method takes a single parameter:
TagReadData[] Reader.read(long duration)