CN1312585C - Embedding rotary mechanical intelligent state monitoring and failure diagnostic device - Google Patents
Embedding rotary mechanical intelligent state monitoring and failure diagnostic device Download PDFInfo
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- CN1312585C CN1312585C CNB2003101060035A CN200310106003A CN1312585C CN 1312585 C CN1312585 C CN 1312585C CN B2003101060035 A CNB2003101060035 A CN B2003101060035A CN 200310106003 A CN200310106003 A CN 200310106003A CN 1312585 C CN1312585 C CN 1312585C
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Abstract
The present invention relates to an embedded intelligent status monitoring and failure diagnosing device of a rotary machine, which comprises an embedded main board of an industrial control computer, a signal conditioner and a signal synchronous collector, wherein an output terminal of the signal conditioner is connected with an analog input terminal of the signal synchronous collector, and a digital quantity output terminal of the signal synchronous collector is connected with an AC/DC selection input terminal of the signal conditioner; other digital quantity output terminals from S1 to S3 are connected with an address selection input terminal of the signal conditioner; and a data line and an address line of the signal synchronous collector 3 are respectively connected with a data line and an address line of a PC bus line, and an embedded computer data line and an embedded computer address line which are on the computer main board are respectively connected with the data line and the address line of the PC bus line. A solid state electronic disk connected to the computer is used for storing status data of an embedded operating system, data collecting software, diagnostic software and mechanical equipment. The device can realize remote maintenance and upgrade.
Description
Technical field
The present invention relates to a kind of monitoring and failure diagnosis apparatus of plant equipment operation conditions, relate in particular to a kind of built-in rotating machinery intellectual status monitoring and trouble-shooter, belong to plant equipment condition monitoring and fault diagnosis field.
Background technology
Progress and economic globalization along with science and technology, the production scale of modern enterprise is more and more huger, corresponding production equipment is also more towards maximization, high speed, automation direction development, the function of equipment becomes increasingly complex, influence each other is also increasing, equipment running status is differentiated accurately and predicted, diagnose in time and handle, become safety in production and guaranteed the key measure of business economic benefit unusual equipment occurring.Yet, because the high complexity of device structure and function, simple dependence equipment use and maintainer solve the problem that occurs in the equipment running process and have become more and more difficult, when equipment occurs when unusual, often need design, manufacturing, installation, use and service engineer's fellowship of equipment to come acquisition equipment unusual reason and solution to occur, this not only feasible differentiation or diagnosis to equipment running status is difficult in time carry out, and has greatly increased the service of goods expense of equipment manufacturers and the maintenance cost that equipment uses the merchant.In order to address the above problem, a kind of method is monitoring of apparatus for establishing remote status and fault diagnosis system, for device fabrication merchant and equipment use the merchant that a mutual remote collaborative fault diagnosis platform is provided; Other method is, utilizes embedded technology to improve the intelligent level of equipment self, manufactures and designs the Intelligentized mechanical equipment that has from monitoring, self diagnostic capability.For last method, along with the develop rapidly of infotech, computer networking technology, especially Internet technology and Web's is extensively universal, and it realizes not existed technical bottleneck.Existing many universities and research institution are studied it both at home and abroad, and obtained certain achievement in research, what this was wherein the most attractive is undoubtedly towards Internet/Web, based on the long-distance distribution formula Troubleshooting Theory of multi-agent technology and the research of method, and some researchers have developed the remote collaborative fault diagnosis prototype system based on multi-agent technology.To back one method; also just rest on the unusual or normal simple differentiation of equipment state at present; and some have the diagnosis of clear and definite causal simple fault, carry out the embedded intelligence diagnosis for mechanical fault complicated, main equipment and still do not have effective method at present.Trace it to its cause, on the one hand, be that embedded system requires to have stronger real-time, the reliability and the high integration degree of height, requiring almost to need not manual intervention can autonomous operation, simultaneously, the embedded system volume is little, can be for user's scheduling and the resource-constrained that uses, and present intelligent Troubleshooting Theory that proposes and method are not considered these application requirements, are difficult to be integrated among the embedded system; On the other hand, because the coupling of the height between the plant equipment parts, mechanical fault has randomness, the characteristics of ambiguity, there is not simple one-to-one relationship between phenomenon of the failure and the failure cause, even the equipment of same model, because the difference of assembling and condition of work, its work condition state and fault mode also often there are differences, so just require embedded monitoring and the diagnostic system must can be in operational process according to the change of equipment operation condition, the function of regulating self adaptively guarantees the accuracy monitoring and diagnose, this point exactly also is the place of the theoretical deficiency of present intelligent trouble diagnosis.
Existing machinery equipment condition monitoring and trouble-shooter 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.Therefore, this type of device has become the emphasis that present fault diagnosis field is researched and developed, but the maintenance of this type of device is complicated with upgrading, does not still possess the ability that remote system is safeguarded and upgraded so far, and the expense costliness.
Summary of the invention
The invention provides a kind of monitoring of built-in rotating machinery intellectual status and the trouble-shooter that are used for the plant equipment state-detection that can implement remote maintenance, upgrading.
The present invention is a kind of monitoring of built-in rotating machinery intellectual status and trouble-shooter that is used for the plant equipment state-detection, by embedded main board of industrial control computer 1, signal conditioner 2 and signal synchronous collection device 3 are formed, comprise the vibrating sensing signal in of the input end Ain input of interior simulating signal by signal conditioner 2, the output terminals A out of signal conditioner 2 is connected in the analog input end AnalogIn of signal synchronous collection device 3, comprise the revolution speed sensing signal in of the pulse signal input terminal SP input of interior pulse signal by signal synchronous collection device 3, comprise of the digital quantity input/output terminal DIO input of the digital signal of on off state by signal synchronous collection device 3, the digital quantity output terminal S0 of signal synchronous collection device 3 selects input end AC/DCSEL to be connected with the AC/DC of signal conditioner 2, other digital quantity output terminals S1～S3 of signal synchronous collection device 3 is connected with the address selection input end ADDRSEL of signal conditioner 2, computer motherboard 1 comprises embedded computer CPU, the data line of signal synchronous collection device 3 is connected with address wire with the data line of personal computer PC bus respectively with address wire, the data line of embedded computer CPU is connected with address wire with the data line of personal computer PC bus respectively with address wire, be connected with solid-state electronic dish 11 on embedded computer CPU, solid-state electronic dish 11 is used to deposit embedded OS, data acquisition software, diagnostic software and plant equipment status data.
Compared with prior art, the present invention has following advantage:
1, adopt embedded computer and DSP to constitute master-slave system, embedded computer is realized the built-in network service by the built-in Linux operating system that is stored in the solid-state electronic dish, and has remote software upgrade, system maintenance ability; The dsp software of signal synchronous collection device (2) adopts the dynamic loading designing technique, will be stored in the program/data RAM (36) that is filled to signal synchronous collection device (2) under the DSP working routine of its solid-state electronic dish (11) for signal synchronous collection device (2) operation by embedded computer during the system operation.Thereby can realize dynamically changing the working routine of signal synchronous collection device (2) by embedded computer, adjust the function of signal synchronous collection device, improved the flexibility of system, and can realize easily that by the network interface that embedded computer provides system remote is safeguarded, the requirement of upgrading.
2, the complex logic function that traditional needs ten multi-disc integrated chips could be realized by in-system programmable logical device (32) concentrates in a slice device, guaranteed equipment miniaturization and embedded, enable to combine together with equipment, realize informationization, the intellectuality of plant equipment, and can realize the condition monitoring and the diagnosis in cycle equipment life-cycle.
3, the diagnostic software that is stored in the solid-state electronic dish 11 of embedded computer configuration calls execution by embedded computer; characteristic quantities such as the vibration amplitude that embedded computer at first obtains signal synchronous collection device 2, each frequency division amplitude and kurtosis coefficient and operate as normal value separately compare; the identification equipment state is normally still unusual; if each characteristic quantity exceeds normal range of operation; the then unusual and warning of prompt facility; then, starting the fault diagnosis software module diagnoses the unusual reason of current device.The fault diagnosis software module is according to the corresponding relation between vibration performance value such as equipment time domain, frequency domain and the equipment corresponding failure classification, and the fuzzy basis function artificial neural network technology of utilization carries out failure modes automatically, and unusual reason appears in the equipment that obtains.This fault diagnosis software realizes that by embedded agent and mobile proxy technology embedded agent is the ageng that is used for embedded system, and mobile agent software can move to corresponding destination host under network environment in automatic " migration ".Utilize the characteristics of ageng, the network interface that this fault diagnosis software can provide by embedded computer is by LAN (Local Area Network) or Internet and remote fault diagnosis center automatic interaction diagnostic message, realize collaborative diagnosis, and can move the renewal of implement device diagnostic software and upgrading by code.
4, perfect signal ability, can directly detect, also can detect tempolabile signal (as temperature, pressure, flow etc.) and switching value signal rotating speed and common electric vortex vibrating displacement, magneto-electric vibration velocity and piezoelectric type vibration acceleration signal.To ICP type piezoelectric acceleration transducer commonly used, this device can provide embedded power supply.
5, device has 16 programmable digital I/O passages, the input of 1 road rotating speed, 16 tunnel simulating signal input channels, and wherein the simulating signal input channel can extend to 256 passages according to application need.
6, be that 16 channel signal synchronous acquisition modules of core can realize that 16 channel analog signals gather synchronous complete cycle according to the rotating speed of measuring with DSP, the every passage of frequency acquisition is up to 75KHz.In addition, 16 channel signal synchronous acquisition modules have internal trigger and external trigger sampling function, and its external trigger sampling function can guarantee that polylith 16 channel signal synchronous acquisition modules use simultaneously, realize the synchronized sampling of (as 32,48 etc.) of hyperchannel more.
7, the embedded 128K word program of 16 channel signal synchronous acquisition modules storer, 128K digital data memory buffer, 1M bytes of serial nonvolatile memory are guaranteed can realize " black box " function when unit exception is shut down.
8, device has the hardware check ability, can online detection port and sensor states, and to guarantee that systemic-function is normal.
Description of drawings
Fig. 1 is a circuit block diagram of the present invention.
Fig. 2 is the theory diagram of signal synchronous collection device.
Fig. 3 is the theory diagram of signal conditioner.
Fig. 4 is the theory diagram of anti alias filter.
Fig. 5 is the programmable logic device (PLD) functional block diagram.
Fig. 6 is signal condition element circuit figure.
Fig. 7 is a signal synchronous collection device main circuit diagram.
Fig. 8 is signal synchronous collection device simulating signal buffer cell (16 a passage) circuit.
Fig. 9 is a signal synchronous collection device A/D converter circuit (16 passage).
Figure 10 is a signal synchronous collection device memory circuitry.
Figure 11 is a signal synchronous collection device DSP circuit.
Figure 12 is a signal synchronous collection device programmable logic device (PLD) circuit (a).
Figure 13 is signal synchronous collection device PC bus interface and programmable logic device (PLD) circuit (b).
Figure 14 is signal synchronous collection device power supply and signal input output interface circuit.
Figure 15 is embedded computer system monitoring, diagnostic software workflow.
Embodiment
Embodiment 1:
Present embodiment is a kind of monitoring of built-in rotating machinery intellectual status and trouble-shooter that is used for the plant equipment state-detection, by embedded main board of industrial control computer 1, signal conditioner 2 and signal synchronous collection device 3 are formed, comprise the vibrating sensing signal in of the input end Ain input of interior simulating signal by signal conditioner 2, the output terminals A out of signal conditioner 2 is connected in the analog input end Analogin of signal synchronous collection device 3, comprise the revolution speed sensing signal in of the pulse signal input terminal SP input of interior pulse signal by signal synchronous collection device 3, comprise the digital quantity input/output terminal DIO input of the digital signal of on off state by signal synchronous collection device 3, the digital quantity output terminal S0 of signal synchronous collection device 3 selects input end AC/DC SEL to be connected with the AC/DC of signal conditioner 2.Other digital quantity output terminals S1～S4 of signal synchronous collection device 3 is connected with the address selection input end ADDR SEL of signal conditioner 2, computer motherboard 1 comprises embedded computer CPU, on embedded computer CPU, be connected with solid-state electronic dish 11, the data line of signal synchronous collection device 3 is connected with address wire with the data line of PC bus respectively with address wire, the data line of embedded computer CPU is connected with address wire with the data line of PC bus respectively with address wire, signal synchronous collection device 3 comprises 2 signal synchronous collection unit and program data memory at least, this signal synchronous collection unit is by digital signal processor 31, system programmable logic chip 32, simulating signal buffer cell 33, A/D converter 34 is formed, the output terminal of simulating signal buffer cell 33 is connected with the input end of A/D converter 34, data line D0～the D13 of A/D converter 34 is connected with the data terminal of the internal bus 311 of digital signal processor 31 respectively, on the internal bus 311 of digital signal processor 31, be connected with program and data-carrier store, program and data-carrier store comprise data RAM 35, program/data RAM 36 and data flash memory 37, data terminal D0～the D15 of data RAM 35 is connected with the internal bus 311 of digital signal processor 31 respectively with address end A0～A15, data terminal D0～the D15 of program/data RAM 36 is connected with the internal bus 311 of digital signal processor 31 respectively with address end A0～A15, the chip selecting side CS of program/data RAM 36 be connected with the program storage selecting side PS of digital signal processor 31, the serial peripheral interface SPI of data flash memory 37 is connected with the multichannel buffered serial port McBSP of digital signal processor 31, behind the programming code that system programmable logic chip 32 is accepted from programming port JTAG1, make the internal logic of system programmable logic chip 32 form its generation sampling pulse generation circuit 321 according to programming code, port encoded control logic 322, HPI interface logic 323, frequency dividing circuit 324 and programmable digital input/output port 325.Data terminal D0～the D15 of programmable digital input/output port 325 is connected with the internal bus of digital signal processor 31, the read-write control end of programmable digital input/output port 325 is connected with the read-write control end I/O RD/WR of port encoded control logic 322, data terminal D0～the D15 of port encoded control logic 322 is connected with the internal bus 311 of digital signal processor 31 respectively with address end A0～A15, the chip selecting side of port encoded control logic 322 and write signal end respectively with the chip selecting side RAMCS of data RAM 35 and the write signal end MWR of data RAM 35, the write signal end of program/data RAM 36 connects, the AD look-at-me end ADINT of port encoded control logic 322 is connected with the interrupting input end INT0 of digital signal processor 31, the input and output of port encoded control logic 322 are connected with memory read/write control end IO/MEM CTRL with the input and output of digital signal processor 31 respectively with memory read/write control end IO/MEM CTRL, the interrupting input end INT1 of digital signal processor 31 is connected with the output terminal of frequency dividing circuit 324, the pulse signal that comprises the revolution speed sensing signal after the pulse shaping as the input signal of frequency dividing circuit 324, the reset terminal RESET of digital signal processor 31 is connected with the reseting controling end DSPRST of HPI interface logic 323, the host interface of digital signal processor 31 is connected with the host interface bus HPIBUS of HPI interface logic 323, the PC bus interface PCBUS of HPI interface logic 323 is connected with the personal computer PC bus, the zero-output terminal TOUT0 of digital signal processor 31 is connected with the input end of clock CLKIN that sampling pulse produces circuit 321, the trigger pulse selecting side Select that sampling pulse produces circuit 321 is connected with the trigger pulse selecting side of port encoded control logic 322, the start end Start that sampling pulse produces circuit 321 is connected with AD converter 34 startup end of convert CONVST, and sampling pulse produces circuit 321 and is provided with external trigger input end TRIGCLK.Above-mentioned digital signal processor 31 adopts the TMS320VC5402 chip, system programmable logic chip 32 adopts the XC95144XL chip, by the JTAG mouth on it its logic function is programmed, this chip is made up of interface logic, the decoding of DSP port and steering logic, A/D sampling pulse generation circuit, countdown circuit and the programmable digital amount input and output DIO port logic of DSP HPI interface and personal computer PC bus.The follower that the simulating signal buffer cell adopts operational amplifier to constitute carries out the buffering of analog input signal, A/D converter 34 adopts the AD7865 chip of 4 passage synchronized samplings, data RAM 35 and program/data RAM 36 all adopt the IS61LV12816 chip, data flash memory 37 adopts AT45DB081B, is used to realize the non-volatile preservation (power down is obliterated data not) with interior device history data record in nearest 24 hours.Signal conditioner 2 comprises alternating current-direct current separation vessel 21, o controller (22), electronic switch K1 and another electronic switch K2, comprising the vibrating sensing signal carries out after alternating current-direct current separates through alternating current-direct current separation vessel 21 in interior simulating signal, the AC compounent signal amplifies through signal amplifier again, export after the low-pass filter filtering, alternating current output signal is transported to the output terminal of signal conditioner 2 behind an electronic switch K1, export after signal attenuation through the DC component signal that alternating current-direct current separation vessel 21 carries out after alternating current-direct current separates, direct-flow output signal is also transported to the output terminal of signal conditioner 2 behind another electronic switch K2, this electronic switch K1 and another electronic switch K2 are controlled by o controller 22, this o controller 22 is by address comparator 221, a not gate 222 and a Sheffer stroke gate 223 and another Sheffer stroke gate 224 are formed, address comparator 221 with the address code signal of the output signal of the digital quantity output terminal S1～S3 of signal synchronous collection device 3 and signal conditioner 2 as its input signal, its output terminal is connected with an input end of this another Sheffer stroke gate 224 of Sheffer stroke gate 223 and this, the input end of not gate 222 is connected as the AC/DC selecting side of signal conditioner 2 and with another input end of this Sheffer stroke gate 223, another input end of another Sheffer stroke gate 224 of the output terminal and this of not gate 222 is connected, the output terminal of this another Sheffer stroke gate 224 of Sheffer stroke gate 223 and this is connected with the control end of this another electronic switch K2 with this electronic switch K1 respectively, above-mentioned alternating current-direct current separation vessel 21 is by resistance, high pass (AC signal extraction) that electric capacity constitutes and low-pass filter (direct current signal extraction) realize that AC signal is amplified and low-pass filter adopts operational amplifier and resistance, the active filter circuit that electric capacity constitutes is realized.Between signal conditioner 2 and signal synchronous collection device 3, be provided with frequency overlapped-resistable filter 4, the output terminals A out of signal conditioner 2 is connected with the input end In of frequency overlapped-resistable filter 4, the output terminal Out of frequency overlapped-resistable filter is connected with the input end AnalogIn of signal synchronous collection device 3, the output terminal of clock of the system programmable logic chip 32 in the signal synchronous collection device 3 is connected with the input end of clock CLKIN of frequency overlapped-resistable filter 4, above-mentioned frequency overlapped-resistable filter 4 adopts switching capacity filter TLC04 to realize, is used to guarantee not occurrence frequency aliasing of the signal gathered through A/D.
Embodiment 2:
Present embodiment is a kind of monitoring of 16 passage built-in rotating machinery intellectual statuses and trouble-shooter that is used for the plant equipment state-detection, by embedded main board of industrial control computer 1,16 channel signal conditioners and 16 channel signal synchronous acquisition devices (Fig. 7～Figure 14) form, comprising the vibrating sensing signal is imported by the input end Ain of 16 channel signals conditioning unit respectively at 16 interior channel analog signals, 16 output terminals A out of 16 channel signals conditioning unit are connected in the analog input end SigIn[0..15 of 16 channel signal synchronous acquisition devices respectively] (Fig. 7), comprise the revolution speed sensing signal in of the pulse signal input terminal J3 input (Figure 13) of interior pulse signal by 16 channel signal synchronous acquisition devices, comprise the digital quantity input/output terminal IO[0..15 of the digital signal of on off state by 16 channel signal synchronous acquisition devices] input (Fig. 7), 8 bit digital quantity output terminal S[0..7 of 16 channel signal synchronous acquisition devices] S0～S4 signal be connected with the S0～S4 of 16 channel signal conditioners, wherein S0 selects input (AC/DC SEL) as AC/DC, and S1～S4 is as the address selection input (ADDR SEL) of 16 channel signal conditioners.The formation of embedded main board of industrial control computer 1 is identical with embodiment 1.16 channel signal conditioners are made of side by side 16 signal condition unit (Fig. 6), there is independently alternating current-direct current separation vessel each signal condition unit, ac signal amplifiers, low-pass filter, direct current signal attenuator and independently electronic switch K1 control exchanges or direct current signal is exported with another electronic switch K2, the unified output control of the electronic switch K1 of all 16 passages by Sheffer stroke gate 223, the unified output control by Sheffer stroke gate 224 of electronic switch K2 guarantees 16 passages output AC or direct current signal simultaneously.Between 16 channel signal conditioners and 16 channel signal synchronous acquisition devices, be provided with the 16 passage frequency overlapped-resistable filters that constitute side by side by 16 anti-aliasing filtering unit among the embodiment 1,16 output terminals A out of 16 channel signal conditioners are connected with 16 input end In of 16 passage frequency overlapped-resistable filters respectively, 16 output terminal Out of 16 passage frequency overlapped-resistable filters and 16 input end SigIn[0..15 of 16 channel signal synchronous acquisition devices] be connected, the input end of clock CLKIN of 16 anti-aliasing filtering unit is connected and is connected with the output terminal of clock of system programmable logic chip 32 in the 16 channel signal synchronous acquisition devices.16 channel signal synchronous acquisition devices (form by the 16 passage A/D converters (Fig. 9) that Fig. 7～Figure 14) is made of 16 tunnels analogy input buffers (Fig. 8), 44 passage synchronized sampling A/D chip AD7865AS-1 and other circuit unit among the embodiment 1 such as digital signal processor (Figure 11), data-carrier store (Figure 10), program/data-carrier store (Figure 10), programmable logic device (PLD) (Figure 12, Figure 13) and power supply and input/output port circuit (Figure 14) etc.
The principle of work of apparatus of the present invention is as follows:
System powers on after the start, embedded computer 1 at first starts the built-in Linux operating system of customization on the solid-state electronic dish 11, finish the hardware detection and the system initialization of computer system, move the user application software that is stored in the solid-state electronic dish 11 then automatically.User application software comprises two threads: thread and network service and network service thread are obtained, store and diagnosed to data.
Wherein data are obtained, are stored and diagnose thread at first to pass through the PC bus interface of 2 of embedded computer board 1 and signal synchronous collection devices with the working routine of signal synchronous collection device 2 and the program/data RAM 36 of working status parameter (as: sample frequency, each characteristic quantity alarm threshold value etc.) input signal synchronous acquisition device thereof.Signal synchronous collection device 2 carries out data acquisition and signal analysis according to the working routine and the running parameter that receive and store in program/data RAM 36.When equipment work just often, data are obtained, are stored and diagnose thread to obtain and preserve data and corresponding analysis result that signal synchronous collection device 2 is gathered according to pre-set time interval; When unusual condition appearred in equipment work, signal synchronous collection device (2) interrupted the normal execution flow process of embedded computer by HPI, and embedded computer carries out that abnormal data is handled and storage, and unusual reason is appearred in equipment analyzed and diagnose.
Network service and network service thread provide interface with the external world for apparatus of the present invention, by this thread, apparatus of the present invention can occur unusual and monitor from the trend Local or Remote after embedded diagnostic module obtains diagnosis by this machine at equipment, diagnostic center (computing machine) sends diagnosis, can not finish at the embedded diagnostic module of this machine under the situation of current diagnostic task and monitor from the trend Local or Remote, diagnostic center proposes diagnosis request, the status information that transmitting apparatus is current is also obtained remote monitoring, diagnostic method that diagnostic center returns and diagnosis, be stored in local data base and be provided with the back use, to improve the diagnosis capability of this device self.Local or Remote monitoring, diagnostic center also can pass through this thread, obtain equipment state and relevant historical record, and apparatus of the present invention are configured, safeguard, remote update dsp system software, setting data collection, storage mode.
The software workflow of whole contrive equipment comprises two parts:
1. embedded computer system software workflow
2.DSP system software workflow
Wherein the embedded computer system software workflow is divided into two big modules, i.e. monitoring normally, diagnostic module and network service, remote maintenance module again.Figure 15 is the workflow of embedded computer system monitoring, diagnostic software.
In Figure 15:
(SuSE) Linux OS starts back run user application software automatically, apparatus of the present invention are carried out the setting of initialization and related work mode, obtain, store and diagnose the operation of the whole device of the common control of thread and network service and network service thread then by the data of user application software.Two threads replace according to the timeslice that (SuSE) Linux OS distributes, standard is moved concurrently, the former is responsible for the status information (original sampling data and the characteristic of analyzing through dsp system) of the equipment that obtains, normally move under the situation at equipment, preserve the history log of equipment according to the time interval of setting, under the unit exception situation, preserve the equipment alarm record and start diagnostic module automatically and diagnose, after the embedded diagnostic module of this machine is successfully diagnosed, report diagnosis by network service and network service thread to Local or Remote monitoring and diagnosis center automatically; When the embedded diagnostic module of this machine can not be made efficient diagnosis, to Local or Remote monitoring and diagnosis center collaborative diagnosis request is proposed by network service and network service thread automatically.
Network service and network service thread are responsible for sending this machine diagnosis or collaborative diagnosis request, and are responsible for accepting diagnosis policy that Local or Remote monitoring, diagnostic center return and diagnosis and are saved to local data base and call later on for diagnostic module.Therefore, when running into similar fault afterwards once more, apparatus of the present invention can be preserved diagnosis policy and conclusion directly obtains corresponding diagnostic result according to database, and needn't ask the diagnostic center diagnosis once more.Improved the diagnosis capability of contrive equipment self like this, effectively.
The dsp system software workflow is as follows: TMS320VC5402 DSP powers on and at first moves self embedded Bootloader program, load the user job program, because the embedded Bootloader of DSP self only provides the function that the user job program is loaded into its internal processes RAM, and the program RAM max cap. of TMS320VC5402 inside has only the 16K word, the working routine that can not hold apparatus of the present invention DSP part fully, therefore designed user Bootloader program, be used for the user job program reprinted to TMS320VC5402 external program RAM and move.
After the DSP user job program run of apparatus of the present invention; the whether normal and initialization controlling of sampling parameter of detection hardware at first; carry out rotating speed and switch acquisition then; directly play guard's valve and maybe whether rotating speed and the equipment operate as normal rotating speed contrast judgment device that records is in the start-stop state according to equipment; set and shut down sign, preserve with the control black box data.Then according to the integer-period sampled frequency of speed setting, the anti-aliasing filtering clock is set, vibrate, the non-vibration data acquisition, extract time domain, the frequency-region signal feature is used for state recognition.
If reporting to the police or being in shutdown appears in equipment state; then start black box data and preserve, and propose interrupt request, send abnormal data to embedded computer and handle for further to embedded computer; otherwise deposit related data in buffer storage, read for embedded computer.
Claims (4)
1, a kind of monitoring of built-in rotating machinery intellectual status and trouble-shooter that is used for the plant equipment state-detection, by embedded main board of industrial control computer (1), signal conditioner (2) and signal synchronous collection device (3) are formed, comprise the vibrating sensing signal in of the input end Ain input of interior simulating signal by signal conditioner (2), the output terminals A out of signal conditioner (2) is connected in the analog input end AnalogIn of signal synchronous collection device (3), comprise the revolution speed sensing signal in of the pulse signal input terminal SP input of interior pulse signal by signal synchronous collection device (3), comprise of the digital quantity input/output terminal DIO input of the digital signal of on off state by signal synchronous collection device (3), the digital quantity output terminal S0 of signal synchronous collection device (3) selects input end AC/DC SEL to be connected with the AC/DC of signal conditioner (2), other digital quantity output terminals S1～S3 of signal synchronous collection device (3) is connected with the address selection input end ADDR SEL of signal conditioner (2), it is characterized in that computer motherboard (1) comprises embedded computer CPU, on embedded computer CPU, be connected with solid-state electronic dish (11), the data line of signal synchronous collection device (3) is connected with address wire with the data line of personal computer PC bus respectively with address wire, the data line of embedded computer CPU is connected with address wire with the data line of personal computer PC bus respectively with address wire, links to each other by the personal computer PC bus between embedded computer CPU and the signal synchronous collection device (3).
2, built-in rotating machinery intellectual status monitoring according to claim 1 and trouble-shooter, it is characterized in that signal synchronous collection device (3) comprises 2 signal synchronous collection unit and program and data-carrier store at least, this signal synchronous collection unit is by digital signal processor (31), system programmable logic chip (32), simulating signal buffer cell (33), A/D converter (34) is formed, the output terminal of simulating signal buffer cell (33) is connected with the input end of A/D converter (34), data line D0～the D13 of A/D converter (34) is connected with the data terminal of the internal bus (311) of digital signal processor (31) respectively, on the internal bus (311) of digital signal processor (31), be connected with program and data-carrier store, program and data-carrier store comprise data RAM (35), program/data RAM (36) and data flash memory (37), data terminal D0～the D15 of data RAM (35) is connected with the internal bus (311) of digital signal processor (31) respectively with address end A0～A15, data terminal D0～the D15 of program/data RAM (36) is connected with the internal bus (311) of digital signal processor (31) respectively with address end A0～A15, the chip selecting side CS of program/data RAM (36) be connected with the program storage selecting side PS of digital signal processor (31), the serial peripheral interface SPI of data flash memory (37) is connected with the multichannel buffered serial port McBSP of digital signal processor (31), behind the programming code of system programmable logic chip (32) acceptance from programming port JTAG, make the internal logic of system programmable logic chip (32) form sampling pulse generation circuit (321) according to programming code, port encoded control logic (322), HPI interface logic (323), frequency dividing circuit (324) and programmable digital input/output port (325), data terminal D0～the D15 of programmable digital input/output port (325) is connected with the internal bus of digital signal processor (31), the read-write control end of programmable digital input/output port (325) is connected with the read-write control end I/O RD/WR of port encoded control logic (322), data terminal D0～the D15 of port encoded control logic (322) is connected with the internal bus (311) of digital signal processor (31) respectively with address end A0～A15, the chip selecting side of port encoded control logic (322) and write signal end respectively with the chip selecting side RAMCS of data RAM (35) and the write signal end MWR of data RAM (35), the write signal end of program/data RAM (36) connects, the AD look-at-me end ADINT of port encoded control logic (322) is connected with the interrupting input end INT0 of digital signal processor (31), the input and output of port encoded control logic (322) are connected with memory read/write control end IO/MEM CTRL with the input/output terminal of digital signal processor (31) respectively with memory read/write control end IO/MEM CTRL, the interrupting input end INT1 of digital signal processor (31) is connected with the output terminal of frequency dividing circuit (324), the pulse signal that comprises the revolution speed sensing signal after the pulse shaping as the input signal of frequency dividing circuit (324), the reset terminal RESET of digital signal processor (31) is connected with the reseting controling end DSPRST of HPI interface logic (323), the host interface of digital signal processor (31) is connected with the host interface bus HPIBUS of HPI interface logic (323), the PC bus interface PCBUS of HPI interface logic (323) is connected with the personal computer PC bus, the zero-output terminal TOUT0 of digital signal processor (31) is connected with the input end of clock CLKIN that sampling pulse produces circuit (321), the trigger pulse selecting side Select that sampling pulse produces circuit (321) is connected with the trigger pulse selecting side of port encoded control logic (322), the start end Start that sampling pulse produces circuit (321) is connected with AD converter (34) startup end of convert CONVST, and sampling pulse produces circuit (321) and is provided with external trigger input end TRIGCLK.
3, built-in rotating machinery intellectual status monitoring according to claim 1 and 2 and trouble-shooter, it is characterized in that signal conditioner (2) comprises alternating current-direct current separation vessel (21), o controller (22), electronic switch K1 and another electronic switch K2, comprising the vibrating sensing signal carries out after alternating current-direct current separates through alternating current-direct current separation vessel (21) in interior simulating signal, the AC compounent signal amplifies through signal amplifier again, export after the low-pass filter filtering, alternating current output signal exports the output terminal of signal conditioner (2) to behind an electronic switch K1, export after signal attenuation through the DC component signal that alternating current-direct current separation vessel (21) carries out after alternating current-direct current separates, direct-flow output signal also exports the output terminal of signal conditioner (2) to behind another electronic switch K2, this electronic switch K1 and this another electronic switch K2 are controlled by o controller (22), this o controller (22) is by address comparator (221), a not gate (222) and a Sheffer stroke gate (223) are formed with another Sheffer stroke gate (224), address comparator (221) with the address code signal of the output signal of the digital quantity output terminal S1～S3 of signal synchronous collection device (3) and signal conditioner (2) as its input signal, its output terminal is connected with an input end of this Sheffer stroke gate (223) and this another Sheffer stroke gate (224), the input end of not gate (222) is connected as the AC/DC selecting side of signal conditioner (2) and with another input end of this Sheffer stroke gate (223), another input end of another Sheffer stroke gate of output terminal and this (224) of not gate (222) is connected, and this Sheffer stroke gate (223) is connected with the control end of this another electronic switch K2 with this electronic switch K1 respectively with the output terminal of this another Sheffer stroke gate (224).
4, built-in rotating machinery intellectual status monitoring according to claim 3 and trouble-shooter, it is characterized in that between signal conditioner (2) and signal synchronous collection device (3), being provided with frequency overlapped-resistable filter (4), the output terminals A out of signal conditioner (2) is connected with the input end In of frequency overlapped-resistable filter (4), the output terminal Out of frequency overlapped-resistable filter is connected with the input end AnalogIn of signal synchronous collection device (3), and the output terminal of clock of the system programmable logic chip (32) in the signal synchronous collection device (3) is connected with the input end of clock CLKIN of frequency overlapped-resistable filter (4).
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| CN101894060B (en) * | 2010-06-25 | 2012-11-21 | 福建星网锐捷网络有限公司 | Fault detection method and modular device |
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| CN102979755A (en) * | 2012-11-19 | 2013-03-20 | 桂林电子科技大学 | Embedded data acquisition system-based mechanical fault diagnosis device of mining fan |
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| CN109236697B (en) * | 2018-10-29 | 2020-09-01 | 安徽四创电子股份有限公司 | Fan control system |
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| CN113776794B (en) * | 2021-08-13 | 2023-04-28 | 昆明理工大学 | Fault diagnosis method, device and system for embedded edge calculation |
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