CN201740656U

CN201740656U - Bulldozer dynamic parameter testing device based on LabVIEW

Info

Publication number: CN201740656U
Application number: CN201020204683XU
Authority: CN
Inventors: 张为春; 刘敏
Original assignee: Shandong University of Technology
Current assignee: Shandong University of Technology
Priority date: 2010-05-27
Filing date: 2010-05-27
Publication date: 2011-02-09
Anticipated expiration: 2020-05-27

Abstract

The utility model relates to a bulldozer dynamic parameter testing device based on LabVIEW, which is mainly characterized by comprising an acquisition module, a data processing module, a fault diagnosis analysis module and a result display module; the acquisition module comprises a LabVIEW sensor and a single-chip microcomputer; the data processing module comprises a preamplifier circuit; and a communication interface module is connected with a communication interface through a CAN bus. The bulldozer dynamic parameter testing device based on LabVIEW can randomly detect the parameter changes, reduces the dependence on human being, has high accuracy of measurement results, intuitively displays the measurement results, and reduces the instrument repair expense.

Description

A kind of proving installation of the dozer dynamic parameter based on LabVIEW

Technical field

The utility model is mainly concerned with the field tests of dozer dynamic parameter, specifically is a kind of proving installation of the dozer dynamic parameter based on LabVIEW.

Background technology

In industrial dozer dynamic parametric test, the test site noise is big, vibration is strong, enchancement factor is more, data volume is bigger in the test process, therefore requires the ability that the anti-vibration ability is strong, data collecting card has stronger adaptation scene, the software requirement of establishment to store data by high capacity to test with the PC microcomputer.Some parameter has hidden, burst, waits characteristics at random such as the fault of hydraulic system, and fault diagnosis and detection difficulty are big, and when using conventional method of testing, the organization and administration of data and software programming be difficulty all, and it is often undesirable to test effect.We use the LabView making software and form virtual test system for this reason, make the whole test job simple, intuitive that becomes, and are easy to data analysis is handled.

Summary of the invention

The utility model purport is the defective that overcomes traditional detection method, though its task provide a kind of can be to dozer dynamic parameter and accurate test method.Realize by following content:

A kind of proving installation of the dozer dynamic parameter based on LabVIEW comprises acquisition module, data processing module, communication interface modules, Analysis on Fault Diagnosis module and display module as a result, and described acquisition module comprises LabVIEW sensor and single-chip microcomputer; Described data processing module comprises pre-amplification circuit; Described communication interface modules is for being connected with communication interface by the CAN bus; Described Analysis on Fault Diagnosis module comprises the expert system fault analysis software systems that are based upon on the LabVIEW operating platform; Described display module as a result comprises computer interface.

Major advantage of the present utility model is:

1, adopts the LabVIEW making software to form virtual test system, make the simple, intuitive that whole test job becomes, and be easy to data are carried out analyzing and processing;

2, adopt the LabVIEW making software to form virtual test system, can obtain required information fast and accurately under the help of expert system, reduce the blindness of work, improve parameter detecting quality and efficient, the maintenance cost of instrument also can reduce, high efficiency.

3, adopt the LabVIEW making software to form virtual test system, the update cycle is short, and the technology innovation cycle of traditional instrument is 5-10, and the technology innovation cycle of virtual instrument is 12;

4, adopting the LabVIEW making software to form virtual test system, can realize the remote monitoring and the diagnosis of dozer dynamic parameter, is the situation of change that the staff can understand parameter at any time;

5, adopt the LabVIEW making software to form virtual test system, reduced the dependence of traditional detection method the people;

6, adopt the LabVIEW making software to form virtual test system, some are had hidden, burst, wait the parameter of characteristic to monitor in real time at random, and the precision height.

Description of drawings

Fig. 1 is the process flow diagram that LabVIEW detects the dozer dynamic parameter.

Fig. 2 is the structure of expert system.

Fig. 3 is the utility model system construction drawing.

Embodiment

1, acquisition module; 2, data processing module; 3, communication interface modules; 4, display module as a result;

5, Analysis on Fault Diagnosis module.

With reference to Fig. 1 is the flow process of the proving installation of a kind of dozer dynamic parameter based on LabVIEW described in the utility model, at first sensor is placed on the position that needs measurement, make it can gather corresponding signal, can signal be amplified by pre-amplification circuit in case of necessity, afterwards signal being changed through the A/D standard utilizes CAN bus and serial communication interface module to realize the data communication of single-chip microcomputer and intercomputer, make signal arrive main frame, expert's fault analysis software compares data and the normal value that extracts, if having exceeded the scope of normal value, the data that read illustrate that there is fault in measurand, enter alternating interface between man and computer and show the conclusion of diagnosing, if fault is serious, then allowing dozer quit work adjusts parameter, do not adjust if fault is not very serious being convenient to again, can when dozer operates, adjust.

Fig. 2 is the structure of expert system, and knowledge base is an independent entity, and the knowledge of its storage inside is extracted and managed by program; Inference machine is the knowledge in the organizational controls mechanism working knowledge storehouse of expert system, carries out reasoning according to certain strategy; Knowledge acquisition is expert system and domain expert and knowledge engineer's a interface; Man-machine interface is the interface between expert system and domain expert or knowledge engineer and the general user, is used for the work of input and output.

Claims

1. proving installation based on the dozer dynamic parameter of LabVIEW, comprise acquisition module, data processing module, communication interface modules, Analysis on Fault Diagnosis module and display module as a result, it is characterized in that: described acquisition module comprises LabVIEW sensor and single-chip microcomputer; Described data processing module comprises pre-amplification circuit; Described communication interface modules is for being connected with communication interface by the CAN bus; Described Analysis on Fault Diagnosis module comprises the expert system trouble analysis system that is based upon on the LabVIEW operating platform; Described display module as a result comprises computer interface.