Study Of Dynamic Weighing Technology For Power Meteriel

In the thesis, dynamic weighing technology problem is presented under the background of the rearach and solution method being not mature in the world, this problem is attempted to resolve through signal processing arithmetic.First, the properties of dynamic weighing are described. In order to consider the speed and precision simultaneously, dynamic weighing is resolved through parameter identification based on least square method and forecast.Then the dynamic weighing system is equivalent to system that is time changeing and non-linearity syetem, dynamic mathmatic model is established by analysis. For the system is the ARMA model, parameter identification method of adaptive least square based on Householder transformation is adopted. The Householder transformation have some advantages of anti ill function, stability, fewer calculation amount and good trace ability.In addition, in practice application high frequency interferer and data mutation are considerd, so the data acquired derectly are pre-disposed. For in the experiment system operator system (OS) is Windows9X, VxD is programed for A/D data acquisition card.The method adopted by the thesis is proved by experiment result. Through the method, the technology requests, the weighing speed and presicion are achieved. The method have the some reference value for the practicality of. the system in the future.