CN102937461A - Signal sampling method for state detection of large hydraulic machinery - Google Patents
Signal sampling method for state detection of large hydraulic machinery Download PDFInfo
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- CN102937461A CN102937461A CN2012104369251A CN201210436925A CN102937461A CN 102937461 A CN102937461 A CN 102937461A CN 2012104369251 A CN2012104369251 A CN 2012104369251A CN 201210436925 A CN201210436925 A CN 201210436925A CN 102937461 A CN102937461 A CN 102937461A
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Abstract
The invention discloses a signal sampling method for state detection of large hydraulic machinery. The signal sampling method includes steps: a vibration sensor outputs signals, a pressure sensor outputs signals, a temperature sensor outputs signals, the signals are processed, a 0.1s timer sends 0.1s timing trigger signals every 0.1s, a 1s timer sends 1s timing trigger signals every 1s, and a 1min timers sends 1min timing trigger signal every 1min. According to the signal sampling method, different timing periods can be adopted to achieve reliable obtaining of detection parameters aiming at different characteristics of state monitoring data of a hydraulic system.
Description
Technical field
The invention belongs to the hydraulic machinery industry, particularly a kind of signal sampling method of state-detection of large hydraulic machinery.
Background technology
Because there is the uniform property of continuity and Hydrostatic Transfer Device in fluid itself, the signal speed variation characteristic of vibration, pressure and temperature and inconsistent, if adopt the sampling of same period, cycle short system resource expend too much, cycle has been grown and can loss change fast signal, therefore in practice, is difficult to the cause-effect relationship of judgement hydraulic system fault; The fault of adding hydraulic system has diffusivity, and in system, an element breaks down, and can cause a series of elements to break down.The common very complex of hydraulic fault sign and hidden, these bring difficulty all to fault diagnosis and state-detection, need a kind of system resource comprehensive state detection signal method of sampling reliably of lossing signal not again that neither expend.
Summary of the invention
The object of the present invention is to provide a kind of signal sampling method of state-detection of large hydraulic machinery.
The technical scheme that realizes above-mentioned purpose is: a kind of signal sampling method of state-detection of large hydraulic machinery comprises the following steps:
S1, vibration transducer output signal: 0.1 second timing pip then, the vibration signal that vibration transducer detects hydraulic machinery exports signal processing module to;
S2, pressure transducer output signal: 1 second timing pip then, the pressure signal that strain transducer detects hydraulic machinery exports signal processing module to;
S3, temperature sensor output signal: then, the temperature signal that temperature sensor detects hydraulic machinery exports signal processing module to 1 minute timing pip;
S4, signal are processed: digital value is processed and converted to the signal to vibration transducer, strain transducer, temperature sensor output;
S5,0.1 second timer: send p.s. 1 second timing pip;
S6,1 second timer: send p.s. 1 second timing pip;
S7,1 minute hand timer: per minute sends 1 minute timing pip.
The signal sampling method of the state-detection of above-mentioned a kind of large hydraulic machinery, the timing pip of described step S5, S6 and S7 is by same clock generating.
The signal sampling method of the state-detection of above-mentioned a kind of large hydraulic machinery, the priority that described step S4 uploads for the signal of described step S1, S2 and S3 arrives the signal that sequential processes is uploaded.
The invention has the beneficial effects as follows: the present invention can adopt different timing cycles to realize obtaining of detected parameters for the fast slow characteristic of the difference of Hydraulic State Monitoring System data, neither expends system resource lossing signal not again.
The accompanying drawing explanation
Fig. 1 is schematic flow sheet of the present invention.
Embodiment
Below in conjunction with accompanying drawing to describing the preferred embodiments of the present invention.
Please refer to Fig. 1, the state detection signal method of sampling of the present embodiment large hydraulic machinery comprises the following steps:
S1, vibration transducer output signal: 0.1 second timing pip then, the vibration signal that vibration transducer detects hydraulic machinery exports signal processing module to;
S2, pressure transducer output signal: 1 second timing pip then, the pressure signal that strain transducer detects hydraulic machinery exports signal processing module to;
S3, temperature sensor output signal: then, the temperature signal that temperature sensor detects hydraulic machinery exports signal processing module to 1 minute timing pip;
S4, signal are processed: digital value is processed and converted to the signal to vibration transducer, strain transducer, temperature sensor output;
S5,0.1 second timer: send p.s. 1 second timing pip;
S6,1 second timer: send p.s. 1 second timing pip;
S7,1 minute hand timer: per minute sends 1 minute timing pip.
The signal sampling method of the state-detection of above-mentioned a kind of large hydraulic machinery, the timing pip of described step S5, S6 and S7 is by same clock generating.
The signal sampling method of the state-detection of above-mentioned a kind of large hydraulic machinery, the priority that described step S4 uploads for the signal of described step S1, S2 and S3 arrives the signal that sequential processes is uploaded.
Principle of work of the present invention is: use same clock that 0.1 second, 1 second and 1 minute three different timing cycle occur, according to the fast slow characteristic of difference that adopts signal, adopt according to different timing cycles, only at timing pip, then just carry out the signal processing.
Below embodiment has been described in detail the present invention by reference to the accompanying drawings, and those skilled in the art can make the many variations example to the present invention according to the above description.Thereby some details in embodiment should not form limitation of the invention, the present invention will be usingd scope that appended claims defines as protection scope of the present invention.
Claims (3)
1. the signal sampling method of the state-detection of a large hydraulic machinery, is characterized in that, comprises the steps:
S1, vibration transducer output signal: 0.1 second timing pip then, the vibration signal that vibration transducer detects hydraulic machinery exports signal processing module to;
S2, pressure transducer output signal: 1 second timing pip then, the pressure signal that strain transducer detects hydraulic machinery exports signal processing module to;
S3, temperature sensor output signal: then, the temperature signal that temperature sensor detects hydraulic machinery exports signal processing module to 1 minute timing pip;
S4, signal are processed: digital value is processed and converted to the signal to vibration transducer, strain transducer, temperature sensor output;
S5,0.1 second timer: send p.s. 1 second timing pip;
S6,1 second timer: send p.s. 1 second timing pip;
S7,1 minute hand timer: per minute sends 1 minute timing pip.
2. the signal sampling method of the state-detection of a kind of large hydraulic machinery according to claim 1, is characterized in that, the timing pip of described step S5, S6 and S7 is by same clock generating.
3. the signal sampling method of the state-detection of a kind of large hydraulic machinery according to claim 1, is characterized in that, the priority that described step S4 uploads for the signal of described step S1, S2 and S3 arrives the signal that sequential processes is uploaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104369251A CN102937461A (en) | 2012-11-06 | 2012-11-06 | Signal sampling method for state detection of large hydraulic machinery |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012104369251A CN102937461A (en) | 2012-11-06 | 2012-11-06 | Signal sampling method for state detection of large hydraulic machinery |
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| CN102937461A true CN102937461A (en) | 2013-02-20 |
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| CN2012104369251A Pending CN102937461A (en) | 2012-11-06 | 2012-11-06 | Signal sampling method for state detection of large hydraulic machinery |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4831361A (en) * | 1987-06-30 | 1989-05-16 | Nittan Company, Ltd. | Environmental abnormality alarm apparatus |
| GB2321109A (en) * | 1997-01-13 | 1998-07-15 | Minster Machine Co | Portable press vibration severity monitoring system and method |
| CN1629608A (en) * | 2003-12-15 | 2005-06-22 | 上海宝钢设备检测公司 | Device status data acquisitor |
| DE102008054303A1 (en) * | 2008-11-03 | 2010-05-12 | Airbus Deutschland Gmbh | Sensor unit for monitoring hydraulic system of e.g. aircraft, has temperature sensors providing temperature values to signal outputs, and pressure sensors for determining pressure signals corresponding to pressure difference between sensors |
| CN102252713A (en) * | 2011-05-06 | 2011-11-23 | 华北电力大学（保定） | Multiparameter state monitoring system for rotation unit |
| CN102339030A (en) * | 2011-10-20 | 2012-02-01 | 河海大学常州校区 | Online real-time diagnosis service system and method for hydraulic cold-drawing machine |
-
2012
- 2012-11-06 CN CN2012104369251A patent/CN102937461A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4831361A (en) * | 1987-06-30 | 1989-05-16 | Nittan Company, Ltd. | Environmental abnormality alarm apparatus |
| GB2321109A (en) * | 1997-01-13 | 1998-07-15 | Minster Machine Co | Portable press vibration severity monitoring system and method |
| CN1629608A (en) * | 2003-12-15 | 2005-06-22 | 上海宝钢设备检测公司 | Device status data acquisitor |
| DE102008054303A1 (en) * | 2008-11-03 | 2010-05-12 | Airbus Deutschland Gmbh | Sensor unit for monitoring hydraulic system of e.g. aircraft, has temperature sensors providing temperature values to signal outputs, and pressure sensors for determining pressure signals corresponding to pressure difference between sensors |
| CN102252713A (en) * | 2011-05-06 | 2011-11-23 | 华北电力大学（保定） | Multiparameter state monitoring system for rotation unit |
| CN102339030A (en) * | 2011-10-20 | 2012-02-01 | 河海大学常州校区 | Online real-time diagnosis service system and method for hydraulic cold-drawing machine |
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Application publication date: 20130220 |