CN101436046B - Integrated multichannel synchronous oscillation data acquiring and monitoring and analysis diagnostic device - Google Patents
Integrated multichannel synchronous oscillation data acquiring and monitoring and analysis diagnostic device Download PDFInfo
- Publication number
- CN101436046B CN101436046B CN2008102438157A CN200810243815A CN101436046B CN 101436046 B CN101436046 B CN 101436046B CN 2008102438157 A CN2008102438157 A CN 2008102438157A CN 200810243815 A CN200810243815 A CN 200810243815A CN 101436046 B CN101436046 B CN 101436046B
- Authority
- CN
- China
- Prior art keywords
- circuit
- sampling
- signal
- vibration
- data acquisition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
The invention discloses an integrated multi-channel synchronous vibration data acquisition, monitoring and analysis diagnosis device. The data acquisition unit comprises a signal conditioning circuit, an anti-aliasing filtering circuit, a multi-channel synchronous sampling chip, a system control logic unit, a pulse-shaping circuit (16), a phaselocking frequency multiplication chip and a microprocessor CPU, wherein the system control logic unit comprises a channel configuration logic unit, a clock generation logic unit, a rotating speed measurement logic unit, a sampling control logic unit and a frequency divider, and the data acquisition unit (1) is directly connected with a plurality of eddy current vibration displacement sensors, ICP type piezoelectric vibration acceleration sensors or magnetoelectric vibration speed sensors, and has an interface of a single-channel direct-connected eddy-current, photoelectric or magnetoelectric key phase/revolution speed sensor and so on. The CPU core board is connected with a computer or a palm computer through a network and a USB or a serial interface and finishes the data acquisition for monitoring and analysis diagnosis.
Description
Technical field
The invention belongs to the field of mechanical oscillation signal supervision and equipment fault analysis and diagnosis, particularly a kind of hand-held, portable and fixed incorporate plant equipment multichannel synchronous oscillation data acquiring and supervision and analysis diagnostic device.
Background technology
Modern process industry, as industries such as metallurgy, petrochemical complex, electric power, by the device populations formation that extensively is coupled, scale is increasing, the contact of each production link is also close day by day, formed and had whole related production chain, and constantly to efficiently, at a high speed, high capacity, high strength, systematization, automation direction development.The function of equipment is more and more, performance index are more and more higher, composition and mechanism become increasingly complex, this promotes the raising of production efficiency on the one hand greatly, on the other hand, in a single day equipment break down, and not only causes the loss of equipment itself, more will cause whole enterprise to produce and pause, will influence the stability and development of whole national economy when serious.In addition, the breakdown loss of many large-scale key equipments and maintenance cost also rise significantly in the process industry.Therefore, by security, the reliability of status monitoring and fault analysis and diagnosis technology raising equipment operation, stable, long-term, the high-quality operation at full capacity of support equipment, the reduction maintenance cost has become the focus of enterprises pay attention.
Existing equipment status monitoring and fault analysis and diagnosis device mainly are divided into three major types: the one, based on the status monitoring and the warning device of measuring instrument, this type of device can on-line monitoring equipment vibration and information such as temperature, pressure, flow, and according to the alarm threshold of artificial setting unusual monitoring parameter is made alarm and stop until interlocking, its shortcoming is to lack the faults analysis diagnosis capability; The 2nd, based on the fault analysis instrument of portable instrument or portable computer, common signal Processing and failure analysis methods mainly is provided, as spectrum analysis, wave form analysis, analysis of orbit etc., this type of device is mainly used in patrolling and examining of equipment state, its shortcoming be can not the complete documentation equipment operation status information, lack the ability of prevention catastrophic failure; The 3rd, based on the on-line condition monitoring and the trouble-shooter of industrial control computer, this type of device combines the function of preceding two class devices together, and because the employing of computer technology, can realize the To enterprises in-house network even towards the remote condition monitoring of Internet and fault analysis, diagnosis.
(application number: 200810055629.0) the employing embedded ARM processor has realized the detection of single pass vibration acceleration signal to disclosed Chinese invention patent " a kind of portable vibration data collector and method based on embedded technology ", and provides the time-frequency domain analytic function by the LCD display and the keyboard interface of configuration.But it has only a vibration input channel and forms of sensor is single, lack the input of rotating machinery key signal, limited its application, and be difficult to realize gather the complete cycle of vibration signal, influenced the precision of its signal analysis, generally only be applicable to patrolling and examining of non-critical devices.
Disclosed Chinese invention patent " integrated vibration signal equiphase complete cycle high-speed synchronous data acquiring system " (application number: 02145406.X) adopt industrial control computer to add the form of expansion board clamping, realized that key signal is handled and the high-speed synchronous of hyperchannel vibration signal is gathered complete cycle, but this type systematic only is applicable to online stationary applications environment.
(patent No.: 200520050843.9) form that adopts notebook computer to add the data harvester has realized hyperchannel vibration signals and processing to China's utility model patent " high integration portable vibration signal processing apparatus ", but the processing that it does not consider the rotating machinery key signal has limited range of application.
China's utility model patent " a kind of portable vibration tester " (patent No.: 86200213U) adopt Analogical Circuit Technique to realize single channel vibration survey, function singleness.
Summary of the invention
The purpose of this invention is to provide a kind of hand-held, portable and fixed incorporate plant equipment multichannel synchronous oscillation data acquiring and supervision and analysis diagnostic device, overcome the deficiency of existing product or system.Especially be provided with a plurality of sensors of direct connection, and have the special purpose interface data acquisition unit of the key phase that single channel can directly connect multiple sensors such as eddy current type, photo-electric or magneto-electric/tach signal input.
To be integrated multichannel synchronous oscillation data acquiring and supervision and analysis diagnostic device be made up of data acquisition unit 1 and computing machine or palm PC 2 in the present invention, both are by network, USB or the interconnection of RS-232C serial communication interface, data acquisition unit 1 can connect the input signal from a plurality of vibration transducers, and the power supply output of single channel key phase/tach signal input and dissimilar sensor is provided.
The synchronous oscillation data acquiring device, data acquisition unit comprises signal conditioning circuit, the anti-aliasing filtering circuit, the multi-channel synchronous sampling A, the system control logic unit, pulse shaping circuit 16, phase locking frequency multiplying chip and microprocessor constitute, system control logic unit 14 comprises the channel arrangement logic, the clock generating logic, the tachometric survey logic, all unit of controlling of sampling logic and frequency divider constitute, described data acquisition unit 1 is nursed one's health the TTL logical signal of generation standard by 16 pairs of external bond phase/rotating speed input signals of its inner pulse shaping circuit, the tachometric survey logical one 43 that is connected to system control logic 14 inside is on the one hand finished the real-time detection of speed cycle, be connected on the other hand the phase locking frequency multiplying circuit that constitutes jointly by phase locking frequency multiplying chip 17 and frequency divider 145 realize key mutually pulse phase locking frequency multiplying and export vibration controlling of sampling logical one 44 to and be used to provide vibration signal Synchronous Sampling Pulse complete cycle, outside hyperchannel vibration input signal inserts anti-aliasing filtering circuit 12 after the signal conditioning circuit 11 of data acquisition unit 1 inside is handled, output after anti-aliasing filtering circuit 12 is handled inserts and is mounted on multi-channel synchronous sampling A 13 on the core cpu plate expansion bus, system control logic 14 clock internal produce logical one 42 provides anti-aliasing filtering circuit 12 required cutoff frequencys to control clock, under the common control of core cpu plate 18 and the controlling of sampling logical one 44 that is mounted on system control logic 14 inside on its expansion bus, realize synchronous acquisition complete cycle of hyperchannel vibration input signal, data acquisition unit 1 built-in DC/DC power supply 15 provides data acquisition unit 1 required power supply, and can be the external vibration sensor, key phase/speed probe power supply, core cpu plate 18 passes through network, USB or RS-232C serial communication interface and computing machine or palm PC 2 interconnection, receive controlling of sampling parameter and sensor configuration information on the one hand from computing machine or palm PC 2, finish the related data acquisition function, the data with its collection send to computing machine or palm PC 2 confession data processing and fault analysis and diagnosis on the other hand.
Described modulate circuit is by sensor feed circuit 111, vibration signal DC component separation circuit 112 and vibration signal AC compounent separation circuit 113 in parallel, AC compounent programmable amplifying circuit 114, integrating circuit 115 of AC compounent and quadratic integral circuit 116 and output signal selection circuit 117 are formed, vibration signal DC component separation circuit 112 is single order low-pass filter circuits, vibration signal AC compounent separation circuit 113 is single order high-pass filtering circuits, the output of DC component separation circuit 112 and AC compounent separation circuit 113 connects integrating circuit of AC compounent and quadratic integral circuit after connecing AC compounent programmable amplifying circuit 114 again, the AC compounent programmable amplifying circuit is selected integrated program control amplification chip for use, integrating circuit 115 of AC compounent and AC compounent quadratic integral circuit 116 adopt the operational amplifier LTC2052 of high precision zero shift, and output signal selection circuit 117 is by the 4:1 MUX.
Described computing machine or palm PC 2 only need to select in industrial control computer, notebook computer or PDA palm PC three a kind ofly can make up fixed accordingly, portable or hand-held machine equipment multichannel synchronous oscillation data acquiring and supervision and analysis diagnostic device with described data acquisition unit 1 is common in the specific implementation.
Compared with prior art, the invention has the advantages that:
(1) data acquisition unit 1 can directly connect a plurality of eddy current type vibration displacement sensors, ICP type piezoelectric type vibration acceleration sensor or magneto-electric vibrating speed sensors, and have single channel and can directly connect eddy current type, key phase/tach signal the input interface of multiple sensors such as photo-electric or magneto-electric, in addition, data acquisition unit 1 built-in multiple sensors power supply, comprise-24V eddy current sensor power supply, + 12V photo-electric key phase/speed probe power supply, + 24V piezoelectric type vibration acceleration sensor constant-current supply, wherein piezoelectric type vibration acceleration sensor constant current power supply can or be closed by the program control unlatching of software.
(2) data acquisition unit 1 built-in vibration signal modulate circuit, can realize that the separation of vibration transducer input signal ac/dc, the program control amplification of AC signal, AC signal are once or quadratic integral, wherein the program control enlargement factor of AC signal is chosen as 1,2,5,10,20,50,100 7 grade, and the signal condition pattern can be set by software programming.
(3) data acquisition unit 1 built-in key phase/tach signal treatment circuit, can measure the speed cycle of revolution in real time and key signal be carried out frequency multiplication by the phase locking frequency multiplying circuit, provide vibration signal synchronous acquisition complete cycle required controlling of sampling pulse, the multiple of frequency multiplication can be chosen as 8,16,32,64,128,256,512,1024 times by software, multiple can instantaneously switch, and need not to wait for.When no key phase/tach signal was imported, data acquisition unit 1 can produce the required sampling pulse of synchronized sampling according to software programming by the sample frequency timer that its internal programmable logical device (CPLD) provides.
(4) data acquisition unit 1 is realized system control logic 14 and is adopted monolithic multi-channel synchronous sampling A 13 to finish synchronous acquisition complete cycle of vibration signal by monolithic programmable logic device (PLD) (CPLD), simplified system architecture, realize the miniaturization of data acquisition unit, improved its portability.
(5) data acquisition unit 1 adopts the core cpu plate as its main control module, core cpu plate plug-in storer, data-carrier store and networking interface, RS-232C serial line interface etc., by its expansion bus and peripheral device interconnection, be convenient to system upgrade and maintenance, the core cpu plate both can have been selected X86 series embedded type CPU core board, also can select ARM series embedded type CPU core board.
(6) data acquisition unit 1 adopts hand-held, portable and fixed integrated design, the multiple communication interface that comprises network, USB device port and RS-232C is provided, can directly connect industrial control computer, notebook computer or PDA palm PC, flexible configuration.To the hand-held application scenario, the pattern that can select data acquisition unit to add the PDA palm PC realizes patrolling and examining of equipment, and can carry out the analysis and the differentiation of equipment state and carry out spot dynamic balance by the simple and easy data analysis software that the PDA palm PC provides; To the portable use occasion, can select data acquisition unit to add the pattern of notebook computer, the analyzing and diagnosing and the spot dynamic balance that carry out equipment failure by the software of notebook computer inside; To the stationary applications occasion, can select the pattern of data acquisition unit processing industry control computer, realize the on-line continuous monitoring and the analyzing and diagnosing of equipment state.
Description of drawings
Integrated multichannel synchronous oscillation data acquiring of Fig. 1 and supervision and analysis diagnostic device general structure block diagram.
Fig. 2 is the programmable logic device (PLD) functional block diagram.
Fig. 3 is the signal conditioning circuit schematic diagram.
Fig. 4 is the anti-aliasing filtering circuit theory diagrams.
Fig. 5 is multi-channel synchronous sampling AD chip circuit schematic diagram.
Fig. 6 is the programmable logic device (PLD) circuit theory diagrams.
Fig. 7 is the pulse shaping circuit schematic diagram.
Fig. 8 is the phase locking frequency multiplying circuit theory diagrams.
Fig. 9 is core cpu plate interface and telecommunication circuit schematic diagram.
Figure 10 is device power circuit principle figure.
Figure 11 is the workflow diagram of data acquisition application software.
Figure 12 monitors and analyzing and diagnosing software function block diagram for vibration signal.
Embodiment
Present embodiment is a kind of integrated six passage synchronous oscillation data acquirings and supervision and analysis diagnostic device.Below in conjunction with accompanying drawing specific embodiments of the present invention is further elaborated.
As shown in Figure 1, present embodiment is made up of data acquisition unit 1 and computing machine or palm PC 2, and data acquisition unit 1 links to each other with computing machine or palm PC 2 by its built-in network, USB device port or RS-232C serial line interface.Data acquisition unit 1 comprises signal conditioning circuit 11, anti-aliasing filtering circuit 12, multi-channel synchronous sampling A 13, system control logic 14, DC/DC power supply 15, pulse shaping circuit 16, phase locking frequency multiplying chip 17, core cpu plate 18.Signal conditioning circuit 11, anti-aliasing filtering circuit 12, multi-channel synchronous sampling A 13, core cpu plate 18 links to each other successively, the channel arrangement logical one 41 of system control logic 14 inside, clock generating logical one 42 and controlling of sampling logical one 44 respectively with signal conditioning circuit 11, anti-aliasing filtering circuit 12 and 13 interconnection of multi-channel synchronous sampling A, the mode of control signal conditioning, anti-aliasing filtering cutoff frequency and multi-channel synchronous sampling, 16 pairs of outside key phase/tach signals that insert of pulse shaping circuit are nursed one's health the TTL pulse signal that generates 0～5V standard, the tachometric survey logical one 43 and the controlling of sampling logical one 44 of one side connecting system steering logic 14 inside, finish the synchro control of the real-time detection and the vibration signal sampling of rotating machinery rotating speed, insert phase locking frequency multiplying chip 17 on the other hand and carry out phase locking frequency multiplying, phase locking frequency multiplying chip 17 required divider circuits realize that by the frequency divider 145 of system control logic 14 inside DC/DC power supply 15 provides present embodiment required various direct supplys.
As shown in Figure 2, system control logic 14 links to each other with microprocessor CPU core board 18 by bus and the port decoding logic 146 that its inside is provided with, channel arrangement logical one Unit 41 comprise sampling control signal selection port 1410, acceleration transducer power supply control port 1411 and gain Serial Control port one 412, sampling control signal is selected port 1410 outputs 12 tunnel control signal SEL0～SEL11, the corresponding vibrating channel of every two paths of signals, be respectively applied for the AC compounent of selecting this vibrating channel signal, an integration output of AC compounent, the quadratic integral output of AC compounent or the DC component of this vibrating channel signal are used for sampling, acceleration transducer power supply control port 1411 is used to control the unlatching of 6 road vibration acceleration sensor constant current power supplies or close, gain Serial Control port one 412 is used to control the enlargement factor of 6 passage vibration signal AC compounent, controlling of sampling logical one 44 comprises AD steering logic 1440, sample frequency timer 1441, the sampling trigger pulse is selected logical one 442, AD steering logic 1440 provides multi-channel synchronous sampling A 13 required sampling control signal, and the sample states information of reception multi-channel synchronous sampling A 13, supply the data after core cpu plate 18 reads sampling, sample frequency timer 1441 produces the required Synchronous Sampling Pulse of multi-channel synchronous sampling A 13 when being used for the input of (inside) no external bond phase/tach signal, the frequency of this sampling pulse can be by software set, the sampling trigger pulse selects logical one 442 to be used to select the Synchronous Sampling Pulse of the key phase frequency-doubled signal of the output of inner sample frequency timer 1441 or frequency divider 145 outputs as multi-channel synchronous sampling A 13, when options button phase frequency-doubled signal, further the multiple of options button phase frequency multiplication is 8,16,32,64,128,256,512,1024 times, 147 pairs of USB look-at-mes of interrupt control and AD EOC interrupt handling and interrupt to the CPU application.
As accompanying drawing 3, present embodiment wherein one road vibration signal modulate circuit by sensor feed circuit 111, vibration signal DC component separation circuit 112, vibration signal AC compounent separation circuit 113, AC compounent programmable amplifying circuit 114, integrating circuit 115 of AC compounent, AC compounent quadratic integral circuit 116 and output signal selection circuit 117 are formed, sensor feed circuit 111 adopts the switch of PhotoMOS relay AQW214 control power supply, vibration signal DC component separation circuit 112 is by the realization of single order low-pass filter circuit and with 6 times of signal attenuations, vibration signal AC compounent separation circuit 113 adopts the single order high-pass filtering circuits to realize and with 2.5 times of signal attenuations, AC compounent programmable amplifying circuit 114 is selected integrated program control amplification chip LTC6912-1 for use, can realize 1,2,5,10,20,50,100 7 grades of amplifications, effectively reduced the volume of circuit board, integrating circuit 115 of AC compounent and AC compounent quadratic integral circuit 116 adopt the operational amplifier LTC2052 of high precision zero shift, improved integral accuracy, output signal selection circuit 117 realizes that by 4:1 MUX MAX4052 whole embodiment comprises six same signal conditioning circuits.
As accompanying drawing 4 and accompanying drawing 5, the anti-aliasing filtering circuit 12 of present embodiment adopts linear phase, high direct current accuracy, 10 rank switching capacity filter LTC1569-7, multi-channel synchronous sampling A 13 adopts 16 precision 250KSPS, 6 passage synchronized sampling chip AD7656, analog input signal has guaranteed sample rate and sampling precision by high speed operation amplifier AD8030 buffering rear drive AD7656.
As accompanying drawing 6, present embodiment system control logic 14 adopts a slice programmable logic device (PLD) XC95288XL chip to realize, has improved the integrated level of system effectively.
As accompanying drawing 7, present embodiment pulse shaping circuit 16 comprises input buffer circuit, datum adaptive circuit, comparison shaping circuit and monostable circuit, input buffer circuit can receive the input to eddy current sensor, photoelectric sensor or other type bonds phase/speed probe, the datum adaptive circuit provides comparison signal for comparing shaping circuit, key phase/tach signal is shaped as the pulse of 0～5V standard Transistor-Transistor Logic level, and monostable circuit further is treated to key phase/tach signal the fixed pulse width signal and uses for other circuit.
As accompanying drawing 8, present embodiment phase locking frequency multiplying chip 17 adopts 74HC4046, select a path loop filter to insert frequency multiplier circuit by 4:1 MUX MAX4052, corresponding respectively four the frequency multiplication frequency range 1Hz～10Hz of four path loop filters, 5Hz～50Hz, 20Hz～200Hz, 50Hz～500Hz.
As accompanying drawing 9, present embodiment core cpu plate interface adopts two 36 core connectors, can select embedded x86CPU mainboard of ETR232I/H or EM9160 embedded-type ARM cpu motherboard for use, the application software of data acquisition unit 1 is solidified the FLASH program storage in the core cpu plate, and by its network interface, built-in/as to extend out USB interface or RS-232C serial line interface and industrial control computer, notebook computer or PDA palm PC to interconnect swap data.
As accompanying drawing 10, present embodiment DC/DC power supply can produce ± 5V, VCC (+5V) ,+12V ,+3.3V, ± the 24V power supply, wherein ± 5V be used for mimic channel power supply, VCC be used for the digital circuit power supply ,+3.3V be used for the programmable logic device (PLD) power supply ,+12V be used for the power supply of exterior light electric transducer ,+24V be used for the power supply of ICP type acceleration transducer ,-24V is used for the power supply of outer vortex sensor.
The computing machine of present embodiment or palm PC are equipped with vibration signal and monitor and analyzing and diagnosing software, to the hand-held applied environment, this software provides polling path management, signals collecting, frequency test and on-the-spot spectrum analysis function, to portable and stationary applications environment, this software provides online signal monitoring and functions such as analysis, historical data management, trend analysis, sample analysis, spot dynamic balance and data drawing list printing simultaneously, makes things convenient for equipment state assessment and fault analysis and handling.
The principle of work of apparatus of the present invention is as follows:
With the embedded x86CPU mainboard of ETR232I/H is example, after data acquisition unit powers on, the embedded x86CPU mainboard of ETR232I/H at first starts the dos operating system that solidifies in its FLASH program storage, operation is stored in the data acquisition application software in the FLASH program storage then, the data acquisition application software comprises data acquisition and storage, data communication, three functional modules of system maintenance, after the operation of data acquisition application software, at first according to the current duty that is stored in the software configuration file initialization data collecting unit in its FLASH program storage, begin data acquisition then and monitor its network, serial line interface and the information that extends out the usb communication port, control command according to the communication port acquisition from computing machine or palm PC, the working method of configuration data collecting unit, finish the data acquisition task, upload the data of collection, perhaps carry out system software upgrading and maintenance.The workflow of data acquisition application software as shown in Figure 11.
The vibration signal that computing machine or palm PC are installed monitors the working method that is used for the configuration data collecting unit with analyzing and diagnosing software, receives the vibration data of gathering from data acquisition unit, and further analyzes and handle.Vibration signal monitors with analyzing and diagnosing software discerns identification equipment lifting/lowering speed, constant speed and normal operating condition automatically, go forward side by side line data analysis and storage, press during equipment lifting/lowering speed and decide relative speed variation stored data at interval, press the fixed time interval stored data when normal operation, constant speed, and can be according to the range of speeds of setting or amplitude variation, phase change stored data.Software is by rod figure, form, display mode monitors vibration signal and eigenwerts thereof such as figure, the involving vibrations waveform, spectrogram and rotating speed, logical amplitude peaks peak value frequently, the power frequency amplitude, phase place, 0.5X and 2X amplitude, phase place, gap voltage, vibration severity, eigenwerts such as peak-to-peak value after the removal power frequency amount, and has a multiple time domain, frequency domain and time-frequency domain vibration analysis function, comprise time domain waveform, correlation analysis, each passage vibration logical amplitude and frequency-selecting amplitude and phase place trend frequently, orbit of shaft center, shaft core position, frequency spectrum, Bode diagram, polar plot, cascade graphs, waterfall figure, the multi-measuring point time domain waveform, frequency spectrum and trend comparative analysis, wavelet analysis etc., in addition, vibration signal monitors with analyzing and diagnosing software also provides transient equilibrium to calculate and whole monitorings, analysis diagram, the inquiry of historical data result, the printing of configuration parameter etc. and Print Preview function.Hand-held is patrolled and examined application, can examine by class, daily test, the week inspection, classification such as monthly test management equipment polling path, increase, deletion, revise measuring point acquisition configuration information, and can connect by serial-port communication, download pre-configured polling path to the PDA palm PC, be used for the scene and patrol and examine test, patrol and examine in the test process, can monitor sampling process, tables of data is provided simultaneously, oscillogram, on-the site analysis functions such as spectrogram demonstration, patrolling and examining the sampling finish after, can connect by serial-port communication and upload sampled data, deposit associated databases in, browse analysis afterwards, comprise data query, trend analysis, oscillogram, spectrogram etc.Vibration signal monitors with analyzing and diagnosing software to be needed at frequency measurements such as blade, structures, and specialized designs has single measuring point amplitude thresholds to trigger the sampling function, and has functions such as frequency measurement sampled data waveform, frequency spectrum and time frequency analysis.Vibration signal supervision and analyzing and diagnosing software function block diagram are as shown in Figure 12.
Claims (6)
1. integrated multichannel synchronous oscillation data acquiring and supervision and analysis diagnostic device, form by data acquisition unit and computing machine (2), it is characterized in that, the microprocessor of data acquisition unit (18) is by network, USB or RS-232C serial communication interface and computer interconnection, and computing machine is industrial control computer, notebook computer or PDA palm PC; Microprocessor receives controlling of sampling parameter and the sensor configuration information from computing machine (2), finishes the related data acquisition function, and the data connection of its collection is sent to computing machine for data processing and fault analysis and diagnosis; Described data acquisition unit comprises signal conditioning circuit, the anti-aliasing filtering circuit, the multi-channel synchronous sampling A, the system control logic unit, pulse shaping circuit (16), phase locking frequency multiplying chip and microprocessor constitute, system control logic unit (14) comprises the channel arrangement logical block, the clock generating logical block, the tachometric survey logical block, vibration controlling of sampling logical block and frequency divider constitute, described data acquisition unit (1) directly connects a plurality of eddy current type vibration displacement sensors, ICP type piezoelectric type vibration acceleration sensor or magneto-electric vibrating speed sensors, and have single channel and can directly connect eddy current type, photo-electric or magneto-electric key phase/speed probe interface, the TTL logical signal that the pulse shaping circuit (16) of described data acquisition unit (1) is nursed one's health the generation standard to external bond phase/rotating speed input signal is connected to the inner tachometric survey logical block (143) in system control logic unit (14), finish the real-time detection of speed cycle, the TTL logical signal also be connected to by the common phase locking frequency multiplying circuit that constitutes of phase locking frequency multiplying chip (17) and frequency divider (145) realize key mutually pulse phase locking frequency multiplying and export vibration controlling of sampling logical block (144) to, be used to provide vibration signal Synchronous Sampling Pulse complete cycle; Outside hyperchannel vibration input signal inserts anti-aliasing filtering circuit (12) after the inner signal conditioning circuit (11) of data acquisition unit (1) is handled, output after anti-aliasing filtering circuit (12) is handled inserts the multi-channel synchronous sampling A (13) on the core board expansion bus that is mounted on microprocessor, system control logic unit (14) clock internal produces logical block (142) provides anti-aliasing filtering circuit (12) required cutoff frequency control clock, microprocessor (18) and the common control that is mounted on the inner vibration controlling of sampling logical block (144) in system control logic unit (14) on its core board expansion bus down the realization hyperchannel vibrate synchronous acquisition complete cycle of input signal.
2. multichannel synchronous oscillation data acquiring according to claim 1 and supervision and analysis diagnostic device, it is characterized in that described system control logic unit (14) links to each other with microprocessor core core (18) by bus and the port decoding logic unit (146) that its inside is provided with, channel arrangement logical block (141) comprises sampling control signal selection port (1410), acceleration transducer power supply control port (1411) and gain Serial Control port (1412), sampling control signal is selected port (1410) output 12 tunnel control signal SEL0～SEL11, the corresponding vibrating channel of every two paths of signals, correspond respectively to the AC compounent of selecting this vibrating channel signal, an integration output of AC compounent, the quadratic integral output of AC compounent or the DC component of this vibrating channel signal are used for sampling, acceleration transducer power supply control port (1411) connects and controls the unlatching of 6 road vibration acceleration sensor constant current power supplies or close, gain Serial Control port (1412) connects and controls the enlargement factor of 6 passage vibration signal AC compounent, vibration controlling of sampling logical block (144) comprises AD steering logic unit (1440), sample frequency timer (1441), the sampling trigger pulse is selected logical block (1442), AD steering logic unit (1440 ') provides multi-channel synchronous sampling A (13) required sampling control signal, and receives the sample states information of multi-channel synchronous sampling A (13); Sample frequency timer (1441) is the inner timer that produces the required Synchronous Sampling Pulse of multi-channel synchronous sampling A (13), and the sampling trigger pulse selects logical block (1442) to be used for selecting connecting the Synchronous Sampling Pulse of the key phase frequency-doubled signal of the output of sample frequency timer (1441) or frequency divider (145) output as multi-channel synchronous sampling A (13).
3. integrated multichannel synchronous oscillation data acquiring according to claim 1 and supervision and analysis diagnostic device, it is characterized in that, the power supply of the built-in above-mentioned various kinds of sensors of data acquisition unit (1), wherein ICP type piezoelectric type vibration acceleration sensor constant current power supply is by the program control unlatching of software or close.
4. integrated multichannel synchronous oscillation data acquiring according to claim 1 and supervision and analysis diagnostic device, it is characterized in that the built-in DC/DC power supply of data acquisition unit (15) provides data acquisition unit required power supply, and be external vibration sensor, key phase/speed probe power supply.
5. integrated multichannel synchronous oscillation data acquiring according to claim 1 and supervision and analysis diagnostic device, it is characterized in that described modulate circuit is by sensor feed circuit (111), vibration signal DC component separation circuit (112) and vibration signal AC compounent separation circuit (113) in parallel, AC compounent programmable amplifying circuit (114), an integrating circuit of AC compounent (115) and quadratic integral circuit (116) and output signal selection circuit (117) are formed, vibration signal DC component separation circuit (112) is the single order low-pass filter circuit, vibration signal AC compounent separation circuit (113) is the single order high-pass filtering circuit, the output of vibration signal DC component separation circuit (112) and vibration signal AC compounent separation circuit (113) connects integrating circuit of AC compounent and quadratic integral circuit after connecing AC compounent programmable amplifying circuit (114) again, the AC compounent programmable amplifying circuit is selected integrated program control amplification chip for use, an integrating circuit of AC compounent (115) and AC compounent quadratic integral circuit (116) adopt operational amplifier LTC2052, and output signal selection circuit (117) is realized by the 4:1 MUX.
6. according to the described integrated multichannel synchronous oscillation data acquiring of claim 1 and supervision and analysis diagnostic device, it is characterized in that, described computing machine is equipped with vibration signal and monitors and analyzing and diagnosing software, the working method that is used for the configuration data collecting unit, the vibration data that reception is gathered from data acquisition unit, and further analyze and diagnose; Vibration signal monitors and analyzing and diagnosing software automatic identification equipment lifting/lowering speed, constant speed and normal operating condition, carry out data monitoring, analysis and storage, and transient equilibrium calculating and equipment routing inspection are provided and trigger sampling and analytic function at single measuring point amplitude thresholds that blade, structure frequency measurement need design.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102438157A CN101436046B (en) | 2008-12-08 | 2008-12-08 | Integrated multichannel synchronous oscillation data acquiring and monitoring and analysis diagnostic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102438157A CN101436046B (en) | 2008-12-08 | 2008-12-08 | Integrated multichannel synchronous oscillation data acquiring and monitoring and analysis diagnostic device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101436046A CN101436046A (en) | 2009-05-20 |
| CN101436046B true CN101436046B (en) | 2010-10-06 |
Family
ID=40710513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102438157A Expired - Fee Related CN101436046B (en) | 2008-12-08 | 2008-12-08 | Integrated multichannel synchronous oscillation data acquiring and monitoring and analysis diagnostic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101436046B (en) |
Families Citing this family (44)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116670B (en) * | 2010-01-05 | 2012-08-08 | 华北电力科学研究院有限责任公司 | Vibration acquisition and analysis method |
| CN102253275B (en) * | 2010-05-21 | 2013-04-24 | 淮阴工学院 | Data sampler being universally used by voltage-type sensor and inductively coupled plasma (ICP) sensor |
| CN102455212B (en) * | 2010-10-21 | 2014-07-02 | 上海鑫晟源测控技术有限公司 | Digital signal processor (DSP)-based rotating machine vibration detection and protection system |
| CN102032928A (en) * | 2010-12-15 | 2011-04-27 | 上海工业自动化仪表研究院 | Universal HART (Highway Addressable Remote Transducer) transmitting module and work method |
| CN102155984B (en) * | 2010-12-30 | 2013-04-10 | 北京四方继保自动化股份有限公司 | General vibration signal measuring system of fan |
| CN103547899B (en) * | 2011-06-28 | 2016-01-27 | 国际商业机器公司 | Vibration monitoring system |
| CN102508456B (en) * | 2011-09-29 | 2013-12-18 | 东南大学 | Backplane bus type structure of vibration monitoring and protecting device and communication control method thereof |
| CN102445661B (en) * | 2011-10-14 | 2013-09-25 | 北京航空航天大学 | Reconfigurable dual-channel aero-generator in situ fault diagnosis instrument based on acoustic emission and vibration features |
| CN102621217B (en) * | 2012-03-05 | 2014-03-05 | 清华大学 | Mass spectrum imaging platform device and control method |
| DE102012203968A1 (en) * | 2012-03-14 | 2013-09-19 | Robert Bosch Gmbh | Multi-channel sensor unit and associated operating method |
| CN102645270A (en) * | 2012-05-04 | 2012-08-22 | 北京化工大学 | Intelligent dual-mode vibration sensor for rotary machinery |
| CN102768335A (en) * | 2012-06-29 | 2012-11-07 | 福州瑞芯微电子有限公司 | Circuit and method for monitoring chip internal circuit signal |
| CN102841371B (en) * | 2012-09-20 | 2015-03-25 | 中北大学 | Compound intelligent vibration sensor and vibration source test and location method |
| CN103605302B (en) * | 2013-10-25 | 2016-09-28 | 中国科学院等离子体物理研究所 | A kind of analogue signal interlock protection controller for neutral-beam injector |
| CN103825617B (en) * | 2014-02-28 | 2017-02-15 | 深圳供电局有限公司 | Front-end analog signal conditioning device and method for broadband data acquisition system |
| US9977422B2 (en) * | 2014-07-28 | 2018-05-22 | Computational Systems, Inc. | Intelligent configuration of a user interface of a machinery health monitoring system |
| CN104182553B (en) * | 2014-08-12 | 2017-09-19 | 国网上海市电力公司 | The data processing of transformer DC magnetic bias monitoring system and storage method |
| CN105388784B (en) * | 2014-08-20 | 2019-04-23 | 计算系统有限公司 | The data collection of adaptability and state-driven |
| CN104587630B (en) * | 2015-01-27 | 2018-10-02 | 山东平安消防安全器材有限公司 | A kind of fire extinguisher intelligent management system and management method |
| CN104731748B (en) * | 2015-03-31 | 2018-01-09 | 北京百度网讯科技有限公司 | Multi-path audio-frequency data acquisition method and device |
| CN104835495B (en) * | 2015-05-30 | 2018-05-08 | 宁波摩米创新工场电子科技有限公司 | A kind of high definition speech recognition system based on low-pass filtering |
| CN106444884A (en) * | 2015-08-13 | 2017-02-22 | 天津航天瑞莱科技有限公司 | Multichannel control device used for hydraulic vibration test system |
| CN106933134A (en) * | 2015-12-31 | 2017-07-07 | 中核陕西铀浓缩有限公司 | Multi-channel intelligent main frame frequency signal detects box |
| CN105806474B (en) * | 2016-06-01 | 2019-02-15 | 国网上海市电力公司 | A kind of rotating machinery vibrating measurement method |
| CN106643637B (en) * | 2017-01-12 | 2019-01-25 | 中国工程物理研究院总体工程研究所 | Inspection type principal strain measurement method for vibration measurement |
| CN107071642A (en) * | 2017-04-13 | 2017-08-18 | 深圳市豪富特自动化设备有限公司 | Miaow head automatic separation equipment |
| CN107144343A (en) * | 2017-07-10 | 2017-09-08 | 薛天 | Low-frequency vibration displacement transducer network-building method, system and device |
| CN108021125A (en) * | 2017-12-28 | 2018-05-11 | 深圳市永达电子信息股份有限公司 | Industrial system signal of communication detecting system |
| CN108414823A (en) * | 2018-01-25 | 2018-08-17 | 深圳市简测智能技术有限公司 | A kind of synchronous and synchronous collection method |
| CN110823560A (en) * | 2018-08-07 | 2020-02-21 | 上海华依科技集团股份有限公司 | Data acquisition method for automatic transmission offline test system |
| TWI689708B (en) | 2018-12-24 | 2020-04-01 | 財團法人工業技術研究院 | Vibration sensor with monitoring function and vibration signal monitoring method thereof |
| CN111351566B (en) * | 2018-12-24 | 2022-11-01 | 财团法人工业技术研究院 | Vibration sensor with monitoring function and vibration signal monitoring method thereof |
| KR102683826B1 (en) * | 2019-11-29 | 2024-07-09 | 선전 구딕스 테크놀로지 컴퍼니, 리미티드 | Biometric data sampling method, sampling management device, biometric data detection device and electronic devices |
| CN111947957A (en) * | 2020-08-17 | 2020-11-17 | 浙江中控技术股份有限公司 | Vibration signal sampling method and device, storage medium and electronic equipment |
| CN112345630A (en) * | 2020-10-27 | 2021-02-09 | 内蒙古电力(集团)有限责任公司内蒙古电力科学研究院分公司 | Device and method for detecting lead sealing state of large-thickness nonmetal coating layer accessory |
| CN112558514B (en) * | 2020-11-17 | 2022-03-29 | 中山大学 | Multi-device hardware synchronization method |
| CN112798099A (en) * | 2020-12-30 | 2021-05-14 | 江阴众和电力仪表有限公司 | Digital display type four-channel vibrating instrument |
| CN113156849B (en) * | 2021-03-17 | 2023-03-24 | 上海极熵数据科技有限公司 | Industrial equipment data acquisition method and system and storage medium |
| CN113640654B (en) * | 2021-07-30 | 2024-02-20 | 深圳速跃芯仪科技有限公司 | High-speed state analysis method and system |
| CN113624321B (en) * | 2021-08-12 | 2022-03-04 | 北京博华信智科技股份有限公司 | Real-time online protection system and method based on vibration monitoring |
| CN113390505B (en) * | 2021-08-17 | 2021-12-14 | 北京博华信智科技股份有限公司 | Vibration protection method and system for multi-channel synchronous acquisition |
| CN114594721B (en) * | 2022-02-21 | 2023-10-24 | 江苏赛德力制药机械制造有限公司 | Centrifugal machine fault diagnosis device |
| CN114485912A (en) * | 2022-04-06 | 2022-05-13 | 山东胜业智控科技有限公司 | Multifunctional vibration polling instrument and operation control method |
| CN116026303A (en) * | 2023-03-29 | 2023-04-28 | 航天星云(北京)科技有限公司 | Optical fiber gyro circuit board, debugging method, optical fiber gyro and inertial navigation system |
-
2008
- 2008-12-08 CN CN2008102438157A patent/CN101436046B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101436046A (en) | 2009-05-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101436046B (en) | Integrated multichannel synchronous oscillation data acquiring and monitoring and analysis diagnostic device | |
| CN201277910Y (en) | Test parameter measurement system for aero engine | |
| CN110614539B (en) | Online real-time monitoring and analyzing method for state of spindle of numerical control machine tool | |
| CN101533052B (en) | Testing system and method for PWM fan electrical performance | |
| CN201417174Y (en) | Monitoring system of electro-mechanic equipment | |
| CN109445324B (en) | Control system and control method for motor and reducer integrated test | |
| CN101105501A (en) | Fan rotary speed test system and method | |
| CN201666248U (en) | Natural gas compressor state detection and failure predication system | |
| CN202075305U (en) | State recording device of full-function rotating machine | |
| CN101135894A (en) | Built-in rotating machinery operation monitoring protecting equipment and setting method thereof | |
| JPH0560596A (en) | Abnormality diagnostic unit for rotary equipment | |
| CN113280909A (en) | Coal preparation plant vibrating screen intelligent detection system and method based on vibration signal analysis | |
| CN207457811U (en) | A kind of numerically-controlled machine tool intelligent trouble diagnosis device | |
| CN102445661A (en) | Reconfigurable dual-channel aero-generator in situ fault diagnosis instrument based on acoustic emission and vibration features | |
| CN201247097Y (en) | Apparatus for monitoring and analyzing hydroelectricity set vibration | |
| CN109405889A (en) | System and method for for the prediction of development machine working arm decelerator trouble | |
| CN105372537B (en) | Frequency converter intelligence test platform based on Labview/PDA | |
| CN206192657U (en) | Bearing failure diagnostic equipment | |
| CN102520631A (en) | On-line automatic balancing controller of rotating machinery | |
| CN2890860Y (en) | Real-time detection and diagnosis system torsional vibration | |
| CN111896098A (en) | Embedded remote monitoring system for vibration signals | |
| CN201502410U (en) | Static debugging device of steam turbine speed control system | |
| CN102789228B (en) | Detection device for mechanical cam controller | |
| CN108375733A (en) | A kind of numerical control servo motor multi-parameter Performance Test System and method | |
| CN105388766A (en) | Detection system and method for detecting multiple rotating speed monitoring devices |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101006 Termination date: 20191208 |