BRETT JAMES KAYE,DOUGLAS CRAIG SWINYARD,JUSTYN PETER SMYTHE
申请号：
NZ70533915
公开号：
NZ705339A
申请日:
2015.02.27
申请国别(地区):
NZ
年份:
2016
代理人:
摘要：
When processing the stems of felled trees with a timber-working device, the number of stems being concurrently processed heavily influences the manner in which measurements by the device (such as diameter and length measurement of the collective stems) are to be interpreted. While a manual count could be performed, it is generally desirable to reduce the burden on operators in order to reduce stress and fatigue. A timber-working device and method of operation are provided for distinguishing between circumstances in which two stems are being processed, and a number other than two. The method includes holding at least one stem using at least one pair of arms moveably connected to a frame of a timber-working device. A signal is output indicative of a distance between the frame and a frame facing surface of the at least one stem from a sensing device having a sensing path extending between the frame and the at least one stem. The signal indicative of the distance between the frame and the frame facing surface of the at least one stem is received, and a determination made whether the number of stems currently held by the at least one pair of arms is two, or a number other than two, based at least in part on the signal.
