Patent ID: 7683564
Filing Date: 2010-03-23
Classification: B66C,Y10S

Abstract:
1. A monitoring system for monitoring a force at a load moving device which uses at least one cable attached to a load to lift or slide the load, the system comprising: a first angle sensor configured to generate a first angle signal representative of a first angle of the cable relative to the load moving device; a second angle sensor configured to generate a second angle signal representative of a second angle of the cable relative to the load moving device; a monitoring circuit coupled to the first angle sensor and the second angle sensor to generate a force signal representative of at least one force being applied to the load moving device based upon at least one of the first angle signal and the second angle signal; and at least one load sensor coupled to the monitoring circuit and configured to generate a load signal representative of a force applied to the outrigger, such that the force signal is generated by the monitoring circuit based upon the angle and load signals; wherein the load moving device includes a boom supported by a structure including a plurality of outriggers for stabilizing the structure.