Mount device utilizing patterned features for rack orientation detection
An embodiment of the invention relates to systems and methods for detecting the orientation of sample carriers using two or more RFID tags. One or two dimensional matrix of equally spaced RFID reader antennas may be positioned beneath or within an area on which racks are placed. The first RFID tag defines the origin of the sample carrier and its geometry. The second and additional RFID tags define the orientations of the sample carrier relative to the matrix of the RFID reader antennas. At least two of the tag antennas on the rack align uniquely with two antennas on the reader matrix. The system energizes each reader antenna and associates the RFID tags aligned with them to the RFID reader antenna's physical position.
1. A mount device comprising:
a mount body comprising a plurality of patterned features having the same size and shape, the plurality of patterned features capable of positioning sample carriers of different sizes and capable of positioning sample carriers at different locations and in different orientations on the mount body, wherein each of the sample carriers comprises two or more recesses to hold sample containers, wherein the patterned features comprise a plurality of mount orientation features configured to engage distinct carrier orientation features of the sample carriers to fix a rotational orientation of the sample carriers with respect to the plurality of mount orientation features in a distinct desired orientation; and
an RFID reader matrix physically coupled to the mount body, the RFID reader matrix comprising a plurality of RFID reader antennas.
2. The mount device of claim 1 , wherein the patterned features are defined or positioned relative to the positions of the RFID reader antennas.
3. The mount device of claim 1 , wherein the RFID reader antenna matrix is configured as a one dimensional or two dimensional matrix of equally spaced RFID reader antennas.
4. The mount device of claim 1 , wherein each of the plurality of the RFID reader antennas is configured to detect an RFID tag associated with a sample carrier, when said sample carrier is positioned on the mount device.
5. The mount device of claim 1 , wherein the RFID reader antennas in the RFID reader matrix are in a grid.
6. A laboratory automation system comprising the mount device of claim 1 .
7. The laboratory automation system of claim 6 , wherein the mount device is located within the laboratory automation system in an area where the sample carriers can be placed or exchanged.
8. The laboratory automation system of claim 7 , wherein the area is an input area, an output area, or a distribution area.
9. The mount device of claim 1 , wherein each of the sample carriers is rectangular.
10. The mount device of claim 1 , wherein the patterned features are configured to engage an interior surface of the sample carrier.
11. The mount device of claim 1 , wherein the plurality of patterned features positioning sample carriers of different sizes such that a first subset of the plurality of patterned features engages a sample carrier of a first size, and a second subset of the plurality of patterned features engages a sample carrier of a second size, wherein the second subset of the plurality of patterned features includes at least some of the first subset of the plurality of patterned features.