20100219243 | Closed loop location detection system - A closed loop location detection system for use in monitoring simultaneously the presence or absence of objects in at least two locations, comprises at least one detectable element per location and adapted to be associated with a respective object to be monitored, and at least one detecting device adapted to detect the detectable elements of the objects and so determine whether objects are present in, or absent from, all of the locations being monitored. Means are provided for causing an object to be fed to a location determined to be devoid of objects by the detecting device. Typically, the closed loop location detection system uses RFID technology, e.g. the detection device comprises at least one antenna and the detectable element comprising at least one RF tag. There may be provided one such antenna for each location to be monitored, whereby for a given location, a respective antenna detects the presence or absence of a respective tag thereby determining whether an object is present in this given location. Alternatively, the antenna can be adapted to monitor more than one location, wherein a position tag is associated with each location and means to deactivate the position tag are provided on each object, whereby when the object is fed to a given location, the means to deactivate that are provided on this given object, cause the position tag associated with the given location to stop being detected by the antenna thereby determining that a specific object has been fed to a specific location. | 09-02-2010 |
20080277469 | Closed-Loop Reel Setup Verification and Traceability - A closed-loop receptacle setup verification and traceability system for use in automatically detecting the presence or absence of a components receptacle at a location is presented, such receptacles comprising components reels, components bearing trays or racks, or other such receptacles for bearing and providing components for components processing and/or manipulation. The system is further for automatically identifying the detected receptacles and validating their use at respective detecting locations based on components parameters identifiably associated therewith. The system is still further for tracking and monitoring such receptacles from one detecting location to another optionally updating components parameters associated therewith as needed. To implement the system, each receptacle should comprise at least one detectable element and each detecting position should comprise at least one reader adapted to detect the detectable element and so determine whether receptacles are present at the detecting locations being monitored. Typically, the closed loop system uses RFID technology, e.g. the detector comprises at least one antenna and the detectable element comprises at least one RF tag. Detector antennae may be multiplexed or operated independently to communicate detection, identification and/or validation data between the detectable elements and the system. | 11-13-2008 |