CN103994857A - Embedded intelligent milling duplication eliminating balance measuring system based on OMAP - Google Patents
Embedded intelligent milling duplication eliminating balance measuring system based on OMAP Download PDFInfo
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- CN103994857A CN103994857A CN201410206700.6A CN201410206700A CN103994857A CN 103994857 A CN103994857 A CN 103994857A CN 201410206700 A CN201410206700 A CN 201410206700A CN 103994857 A CN103994857 A CN 103994857A
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Abstract
The invention provides an embedded intelligent milling duplication eliminating balance measuring system based on an OMAP, and belongs to the technical field of detection devices. The system is composed of a signal conditioning circuit, an A/D conversion system and an OMAP embedded system. The signal conditioning circuit is composed of a left magnetoelectric sensor, a right magnetoelectric sensor, a signal conditioning circuit, a photoelectric sensor, a mean value extracting circuit, a pulse shaping circuit and a phase locking doubling circuit. Mechanical vibration signals are converted into voltage signals through the left magnetoelectric sensor and the right magnetoelectric sensor, the photoelectric sensor acquires phase reference signals, and the A/D conversion system is used for A/D conversion. Digital signals generated after A/D conversion are sent to an ARM in the OMAP system, full period sampling is conducted under the effect of clock pulse signals, sampled periodic signals are sent to a DSP unit through an SCR/EDMA, the amplitude and phase information of the amount of unbalance is extracted through calibration and resolving, and meanwhile the speed of a rotating spindle is measured according to shaped pulse signals.
Description
Technical field
The invention belongs to checkout equipment technical field, is the device of duplicate removal balancing a survey in a kind of Milling Process.
Background technology
Most of Test System of Dynamic Balance is all operated in the place of circumstance complication, has various strong interference sources to affect directly or indirectly the work of test macro around, and therefore the reliability of Test System of Dynamic Balance is one of main contents of design system.
The test macro of dynamic balancing machine is mainly made up of microcontroller and peripheral components at present, many inferior positions such as integrated level is low, poor stability, measuring accuracy is low, antijamming capability is weak, arithmetic speed is slow, and be easy to cause deadlock phenomenon.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of based on OMAP embedded intelligence milling duplicate removal balancing a survey system.
The scheme of technical solution problem of the present invention is to adopt signal conditioning circuit, A/D converting system and OMAP embedded system composition, signal conditioning circuit is by a left side, right two-way magnetoelectric transducer, signal conditioning circuit, photoelectric sensor, average is extracted circuit, pulse shaping circuit and phase-locking frequency multiplication circuit form, left, right magnetoelectric transducer converts mechanical oscillation signal to voltage signal, carry out filtering by signal conditioning circuit, amplify, multichannel is selected to process, photoelectric sensor acquisition phase reference signal, extract circuit by average, pulse shaping circuit and phase-locking frequency multiplication circuit are processed, A/D converting system is carried out A/D conversion under the effect of N double frequency pulse signal to the output signal of advance signal treatment circuit, OMAP embedded system is formed by ARM kernel and the set of dsp chip double-core, receive the digital signal that A/D converting system is sent, realize man-machine interface, data acquisition, numerical control milling, control system management and both sides' Communication Control, digital signal processing, tachometric survey, computing and frequency compensation.Digital signal after A/D is sent in the data acquisition unit (ARM) in OMAP system, under the effect of clock pulse signal, carry out integer-period sampled, the periodic signal sampling is sent into digital information processing system (DSP) unit by SCR/EDMA, by demarcating and resolve amplitude and the phase information of extracting amount of unbalance, simultaneously according to the speed of its rotary main shaft of pulse measure after shaping.
The vibration signal of main shaft rotation is the starting point of system data, in the time that main shaft starts to rotate, left, right magnetoelectric transducer will be converted to voltage signal by vibration signal, and send the faint analog voltage signal producing to signal conditioning circuit module, through conditioning circuit module collection, hardware low-pass filtering, the adjusting of programme-controlled gain and by processing such as multi-way switch selections, simulating signal is converted to digital signal by A/D, the digital signal obtaining is by the acquisition system in OMAP, this data acquisition system stores capacity is large, multifunction, real-time is good, aboundresources in conjunction with software filtering in sheet, there is huge superiority for the integrality and the real-time that ensure desired signal.Send the resolving circuit of the DSP digital display circuit in OMAP to by SCR/EDMA for signal complete cycle after gathering.DSP resolving circuit carries out drawing size and the amplitude of amount of unbalance and data touch-screen being shown after a series of computings to digital signal, user-friendly and control milling.In measuring system, send reference signal treatment circuit with reference signal frequently by photoelectric encoder with rotary main shaft, this signal extracts circuit, amplification and rectification circuit, phase-locking frequency multiplication circuit processing through average, obtain and input with square-wave signal frequently, on the one hand for measuring the rotating speed of rotor and the synchronizing clock signals as whole system, process the clock signal as A/D conversion through phase-locking frequency multiplication circuit on the other hand, in whole signal processing, both ensured its phase point of synchronously having got back of signal.
The present invention adopts the high-performance dual core processor OMAP embedded system of TI company, integrated and the synchronously processing to process implementation height such as data acquisition, process control, signal processing, man-machine interface, system management, amplitude phase extraction, compensation tache, tachometric surveies, utilize the advantage of high-performance OMAP embedded system dual core processor make whole electric measuring system reduced circuit design, reduced whole volume, shortened Measuring Time (average 2-4 second/time), improved measurement efficiency, ensured measuring accuracy.OMAP embedded system is integrated ARM kernel and dsp chip, have control function and DSP calculation function fast that ARM is powerful, high performance double-core disposal system OMAP embedded system is applied in the middle of equilibrator measuring system, is a qualitative leap to the progress of equilibrator electric measuring system technology.The present invention uses ARM subsystem in OMAP embedded system as master control system, is mainly responsible for the functions such as finishing man-machine interaction interface, data acquisition, numerical control milling, system management; DSP subsystem mainly completes and receives from information, digital signal processing, the tachometric survey of ARM, copies and the link such as extraction, compensation of phase place.SCR/EDMA is responsible for the telecommunication management between ARM and DSP.In equilibrator test macro, use OMAP embedded system not only to reduce peripheral analog component, on suppressing analog component, on signal reference channel, nonlinear impact has good effect; But also reduced the interference of the factors such as component tolerances value, temperature, environment, there is Reliable guarantee at utmost reducing initial unbalance signal.In OMAP system, integer-period sampled digital signal is demarcated and is resolved, extract amplitude and the phase information of unbalanced signal, this system makes full use of resource and standard interface mode in the sheet that OMAP embedded system is abundant, implement the filtering mode that software and hardware combines, computing and frequency compensation link, adopt the parallel of data and process in real time.The low-power consumption mode of OMAP embedded system has reduced power supply interference, and high integration has reduced the interference of spatial channel radiation.
Brief description of the drawings
Fig. 1 is test macro overall plan figure of the present invention;
Fig. 2 is OMAP embedded system figure of the present invention.
Embodiment
The present invention is by signal conditioning circuit 1, A/D converting system 2 and OMAP embedded system 3 form, signal conditioning circuit 1 is by a left side, right two-way magnetoelectric transducer, signal conditioning circuit, photoelectric sensor, average is extracted circuit, pulse shaping circuit and phase-locking frequency multiplication circuit form, left, right magnetoelectric transducer converts mechanical oscillation signal to voltage signal, carry out filtering by signal conditioning circuit, amplify, multichannel is selected to process, photoelectric sensor acquisition phase reference signal, extract circuit by average, pulse shaping circuit and phase-locking frequency multiplication circuit are processed, A/D converting system 2 is carried out A/D conversion under the effect of N double frequency pulse signal to the output signal of advance signal treatment circuit, OMAP embedded system 3 is formed by ARM kernel and the set of dsp chip double-core, receive the digital signal that A/D converting system is sent, realize man-machine interface, data acquisition, numerical control milling, control system management and both sides' Communication Control, digital signal processing, tachometric survey, computing and frequency compensation.Digital signal after A/D is sent in the data acquisition unit (ARM) in OMAP system, under the effect of clock pulse signal, carry out integer-period sampled, the periodic signal sampling is sent into digital information processing system (DSP) unit by SCR/EDMA, by demarcating and resolve amplitude and the phase information of extracting amount of unbalance, simultaneously according to the speed of its rotary main shaft of pulse measure after shaping.
OMAP embedded system is core of the present invention.The core of OMAP embedded system is made up of ARM subsystem and DSP subsystem, also has abundant peripheral interface, the outer scalable storage of sheet etc.These abundant Resources on Chips have obtained good application in the middle of equilibrator test macro.ARM subsystem has mainly completed the functions such as Man Machine Interface, data acquisition, numerical control milling, system management, as master control equipment, is also responsible for controlling peripherals, as touched the input/output functions such as demonstration, printing function, keyboard and mouse; For Real-Time Sharing processor, ARM mainly coordinates communicating by letter of both sides and handshaking information by SCR/EDMA with DSP subsystem.DSP subsystem mainly completes and receives from the extraction of measurement, amplitude and the phase place of the compensation of information processing, digital signal processing, amplitude and the phase place of ARM, rotating speed etc.In equilibrator test macro, use high performance OMAP embedded system, make precision and the speed measured have very large superiority, particularly have in high speed situation the advantage can not be substituted.
Claims (2)
1. one kind based on OMAP embedded intelligence milling duplicate removal balancing a survey system, it is characterized in that: it is by signal conditioning circuit, A/D converting system and OMAP embedded system composition, signal conditioning circuit is by a left side, right two-way magnetoelectric transducer, signal conditioning circuit, photoelectric sensor, average is extracted circuit, pulse shaping circuit and phase-locking frequency multiplication circuit form, left, right magnetoelectric transducer converts mechanical oscillation signal to voltage signal, carry out filtering by signal conditioning circuit, amplify, multichannel is selected to process, photoelectric sensor acquisition phase reference signal, extract circuit by average, pulse shaping circuit and phase-locking frequency multiplication circuit are processed, A/D converting system is carried out A/D conversion under the effect of N double frequency pulse signal to the output signal of advance signal treatment circuit, OMAP embedded system is formed by ARM kernel and the set of dsp chip double-core, receive the digital signal that A/D converting system is sent, realize man-machine interface, data acquisition, numerical control milling, control system management and both sides' Communication Control, digital signal processing, tachometric survey, computing and frequency compensation, digital signal after A/D is sent in the data acquisition unit in OMAP system, under the effect of clock pulse signal, carry out integer-period sampled, the periodic signal sampling is sent into digital information processing system unit by SCR/EDMA, by demarcating and resolve amplitude and the phase information of extracting amount of unbalance, simultaneously according to the speed of its rotary main shaft of pulse measure after shaping.
2. measuring system according to claim 1, it is characterized in that: the core of OMAP embedded system is by ARM subsystem, DSP subsystem, the outer scalable storage of peripheral interface and sheet forms, ARM subsystem has mainly completed Man Machine Interface, data acquisition, numerical control milling, the functions such as system management, also be responsible for controlling peripherals, ARM mainly coordinates communicating by letter of both sides and handshaking information by SCR/EDMA with DSP subsystem, DSP subsystem completes the information processing receiving from ARM, digital signal processing, the compensation of amplitude and phase place, the measurement of rotating speed, the extraction of amplitude and phase place.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410206700.6A CN103994857A (en) | 2014-05-16 | 2014-05-16 | Embedded intelligent milling duplication eliminating balance measuring system based on OMAP |
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| CN201410206700.6A CN103994857A (en) | 2014-05-16 | 2014-05-16 | Embedded intelligent milling duplication eliminating balance measuring system based on OMAP |
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| CN103994857A true CN103994857A (en) | 2014-08-20 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105371886A (en) * | 2015-10-28 | 2016-03-02 | 长春理工大学 | Embedded photoelectric and spectral feature integrated tester for photoelectric sensor |
| CN112012941A (en) * | 2019-05-31 | 2020-12-01 | 北京四海祥云流体科技有限公司 | Molecular pump online debugging system and method |
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| US20110191040A1 (en) * | 2010-02-02 | 2011-08-04 | Eric Robert Bechhoefer | Techniques for use with rotor track and balance to reduce vibration |
| CN102692298A (en) * | 2012-06-13 | 2012-09-26 | 中国船舶重工集团公司第七0四研究所 | On-site dynamic balance monitoring correcting device and method of high-speed rotary machinery for boat |
| CN102890477A (en) * | 2012-09-26 | 2013-01-23 | 西安交通大学 | On-line active dynamic balance measurement and control device and on-line active dynamic balance measurement and control method |
| CN203432746U (en) * | 2013-09-03 | 2014-02-12 | 嘉禾福顺机械实业有限公司 | Weight removing device of balancing machine |
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2014
- 2014-05-16 CN CN201410206700.6A patent/CN103994857A/en active Pending
Patent Citations (4)
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| US20110191040A1 (en) * | 2010-02-02 | 2011-08-04 | Eric Robert Bechhoefer | Techniques for use with rotor track and balance to reduce vibration |
| CN102692298A (en) * | 2012-06-13 | 2012-09-26 | 中国船舶重工集团公司第七0四研究所 | On-site dynamic balance monitoring correcting device and method of high-speed rotary machinery for boat |
| CN102890477A (en) * | 2012-09-26 | 2013-01-23 | 西安交通大学 | On-line active dynamic balance measurement and control device and on-line active dynamic balance measurement and control method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105371886A (en) * | 2015-10-28 | 2016-03-02 | 长春理工大学 | Embedded photoelectric and spectral feature integrated tester for photoelectric sensor |
| CN105371886B (en) * | 2015-10-28 | 2018-01-12 | 长春理工大学 | Embedded photoelectric sensor photoelectric spectrum test integrated apparatus |
| CN112012941A (en) * | 2019-05-31 | 2020-12-01 | 北京四海祥云流体科技有限公司 | Molecular pump online debugging system and method |
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Application publication date: 20140820 |