Analysis And Research On Loader Standard Information Processing

At present, it is an important developing direction that computer technology combining with digital signal processing technology and communication technology realizes the remote fault diagnosis of engineering machinery. The thesis that combines the entry named"The remote service system of the loader and intellectualized excavator"focus on the processing of standard information.The thesis takes LG's ZL50G loader as the research object, The susceptible signal variables for fault diagnosis are selected on the basis of a lot of experiments. Based on each signal variable's character, the arithmetic to extract feature information has been designed. The feature information in temporal domain and frequency domain can be obtained through the software. In order to improve the transmission efficiency of the signal and decrease the load of signal acquisition, this thesis reconfigures signals using the computer technology and numerical algorithm, supplies the standard to estimate whether the reconfiguration signals are fuzzy, and confirms better sample frequency. In order to store the feature information and the standard data, this thesis designs a suite of rules to establish the reusable and extensible standard database based on the types of loaders. At last, based on the work above, the system of processing standard information has been developed to analyze and process the signal data and manage the standard database.