Virtual sensor and intelligent health monitoring decision making system

Abstract

The invention provides a virtual sensor. A simulation relationship model is set by a setting unit, the simulation relationship model is stored by a storage unit, parameters of the simulation relationship model are directly measured by a physical sensor, the physical sensor is mounted at the position which can be measured by a device, the measured original parameters are sent by the physical sensorto a processing unit, and the original parameters are inputted by the processing unit into the simulation relationship model to calculate parameters of a measuring point. Since the indirect method isutilized to measure the parameters of the indirect measurement point of the device, a problem that the measuring point in the extreme environment cannot be measured or the measuring point of the device is not suitable for placing the physical sensor and the parameters of the measuring point cannot be acquired is avoided. The virtual sensor is advantaged in that the virtual sensor can not only adapt to measurement when the measuring point is in the extreme environment or the measuring point is not suitable for placing the physical sensor, but also the cost is low.

Description

technical field [0001] The invention belongs to the technical field of computer-based modeling, and in particular relates to a virtual sensor and an intelligent decision-making system for health monitoring thereof. Background technique [0002] A very important application system in Industry 4.0 is the Cyber ​​Physical System (CPS). In the CPS of equipment health monitoring, it is necessary to use a large number of sensors to collect equipment status data, so as to accumulate data for analysis. [0003] Physical sensors have been widely used in the measurement and monitoring of modern machinery, electronics and other products. Physical sensors often directly measure physical phenomena and convert these measurements into measurement data that are passed on to the control system for further processing. Because the hardware cost associated with physical sensors is usually high and sometimes unreliable, and sometimes the measured point is in an extreme environment, it is not s...

AI Technical Summary

Problems solved by technology

For example: the change of the inflation pressure of the tire during the operation of the car, the friction with the road surface, etc.; the pressure sensor will face many difficulties when placed on the wheel, and the friction between the tire and the road surface is difficult to measure directly

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