| 摘要 |
A livestock sorting system comprising: (a) an alley comprising an entrance end and an exit end, the exit end comprising a main exit and a sort exit; (b) a sort gate positioned in the alley between the main exit and the sort exit, the sort gate being shiftable between a sorting position in which the sort gate blocks the main exit and opens the sort exit, and a non-sorting position in which the sort gate blocks the sort exit and opens the main exit; (c) an entrance sensor for identifying livestock entering the alley and providing an identification signal; (d) an activity-based controller for receiving input comprising identification of individual livestock, where the activity-based controller receives the identification signal from the entrance sensor, and if the identification signal corresponds to a specific animal identified as a sort animal, provides a sort signal; (e) a sort gate activator for receiving the sort signal and providing a gate open signal in response to the sort signal, thereby causing the sort gate to shift to the sorting position; and (f) an exit sensor for identifying that an animal be sorted has entered the sort exit, and providing an exit signal to the sort gate activator, the sort gate activator in turn providing a gate close signal in response to the exit signal, thereby causing the sort gate to shift to the non-sorting position only if at the time the sort gate activator receives the exit signal, the sort gate activator has not received a second sort signal from the activity-based controller.
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