Adaptive deconvolution approach for estimating the input of checkweighing systems

Research on attitude compensated algorithm for shipborne dynamic weighing

“…In According to the above transformation, the attitude transformation matrix is obtained as follows: Then considering the ship's sway angle and acceleration effects, the forces on the weighed object in the XYZ direction of the carrier coordinate system are respectively as in equations ( 7)- (9).…”

“…According to the real-time acceleration value and expressed as the local gravity acceleration value in g, the real-time impact force of the symmetric weight sensor in three directions under the carrier coordinate system generated by the acceleration can be calculated, and the force of the symmetric weight sensor in three directions can be obtained as equation (13). Where M = [0, 0, m 0 ] T denotes the components of the ideal weight m 0 of the three axes in the geographic coordinate system.…”

“…In model-based estimation methods, it is common practice to create a model of the weighing system and then calculate estimated weights of moving objects based on this model. Halimic et al [8,9] modeled the weighing system of a belt scale using a second-order mass-spring-damper system and developed ideal weight signal models for different materials under test. The results showed that not only the test accuracy but also the weighing speed was improved.…”

“…Adaptive filtering is commonly used when dealing with non-stationary weighing signals in dynamic weighing systems. Adaptive filters [13][14][15][16] have transfer functions with adjustable parameters, which can be tuned using an optimization algorithm. Sun B et al [17] proposed a variable-step-size least-mean-square (NVS-LMS) algorithm based on improved hyperbolic tangent.…”