Distributed state monitoring network system of hydraulic component test bench

Abstract

The invention relates to a distributed condition monitoring network system for hydraulic element test beds. The system comprises a plurality of sensors, filter circuits, a server, a field industrial personal computer, data acquisition cards, and a remote client, wherein the filter circuits are in one-to-one correspondence with the sensors. The field industrial personal computer is provided with a data acquisition module, a data calculation module, a data analysis module, a display module, a data storage module, and a network monitoring module. The sensors are disposed at signal acquisition positions of a hydraulic element test bed respectively. The distributed condition monitoring network system for hydraulic element test beds has the advantages that timeliness and accuracy in hydraulic element condition monitoring are well improved and the acquired data can also be stored completely and orderly.

Description

technical field [0001] The invention relates to the technical field of hydraulic component state monitoring, in particular to a distributed state monitoring network system based on a hydraulic component test bench. Background technique [0002] The hydraulic system is a complete set of devices that use oil as the working medium, use the pressure energy of the oil and control the work of the hydraulic actuator through the control valve and other accessories. With the rapid development of science and technology, hydraulic systems have higher and higher requirements for the performance of hydraulic components. Hydraulic tests play a pivotal role in the development of hydraulic systems. Real-time testing tasks, data, and quality records for the entire process of hydraulic systems are implemented. Comprehensive management, comprehensive processing and comprehensive analysis have become an important means of comprehensive monitoring, management, evaluation and improvement of hydra...

AI Technical Summary

Problems solved by technology

[0004] The existing test and detection methods in our country mainly use mechanical monitoring instruments. The main disadvantages are: 1. The test data is manually read and recorded, which is not only inefficient, but also brings a lot of inconvenience to the further processing of the data.

2. Each test bed is isolated from each other, and there is no unified database to manage it, so the overall analysis of the system is limited to a certain extent, and the value of test data cannot be fully utilized

3. Lack of long-term storage and management of data. In many cases, each test data is only used in the current analysis, and hidden laws in the hydraulic system cannot be found from multiple data

[0006] First of all, the existing hydraulic component status monitoring system cannot display the collected multi-channel signals separately on the waveform graph control, but can only be represented in the same waveform graph with the horizontal axis as the time axis and the vertical axis as the voltage axis. Monitoring of temperature, pressure and flow, so that the temperature value, pressure value and flow value cannot be directly expressed

[0007] Secondly, when the existing hydraulic component status monitoring system analyzes the collected data, it directly inputs the collected data into the data calculation module. Since the data collection is to collect an array per unit time, and this mode is continuously Loop, if the data calculation module is placed in the loop structure, it may cause the speed of the acquisition module to be inconsistent with the speed of the analysis module, resulting in the inability to achieve continuous data collection

[0008] Thirdly, the existing storage method is to directly send the generated data to the remote database for storage through the network. If the network speed is limited, the running speed of the program will not be guaranteed;

[0009] Finally, the existing hydraulic component status detection system is only a single monitoring instrument, which has not realized networked monitoring technology, and cannot realize monitoring in other places, and its use in the factory area has certain limitations.

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