How the system software completes the signal acquisition processing and fault diagnosis reasoning
The system hardware virtual instrument is responsible for the data acquisition of the system. It is based on the PC equipped with the LabVIEW virtual instrument development platform. The sensor is installed in the corresponding part of the CNC machine tool, and the running status information such as vibration, temperature, speed and displacement is obtained online in real time. The vibration signal, temperature, pressure, displacement and other signals are processed and transmitted to the corresponding virtual instrument. The remote collaborative fault diagnosis system service platform is a service site established on the Internet. It includes several web servers, and distributes the CNC machine tool diagnosis expert system, large-scale knowledge base, database, and reasoning mechanism on several servers. The signal is analyzed and calculated to identify the fault location and cause. The main task of the system software system software is to complete the signal acquisition processing and fault diagnosis reasoning. The working mechanism is: collecting CNC machine tool information, inputting the CNC machine tool remote collaborative fault diagnosis system after processing, the diagnosis center calls the knowledge base data, and uses the established The fault diagnosis method judges the performance state of the numerical control machine tool through comparison, calculation, analysis and reasoning to obtain the final fault or the most likely fault. The fault diagnosis process is based on the virtual instrumentation of the CNC machine tool remote collaborative fault diagnosis system diagnostic process. In the application application stage, the CNC machine tool uses the direction diagnosis center to submit a collaborative diagnosis service, and uploads pictures, sample data, and oil sample information. (Finish)
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