CN202631101U - Vibration state monitoring device for marine rotary mechanical shaft system - Google Patents
Vibration state monitoring device for marine rotary mechanical shaft system Download PDFInfo
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- CN202631101U CN202631101U CN 201220276322 CN201220276322U CN202631101U CN 202631101 U CN202631101 U CN 202631101U CN 201220276322 CN201220276322 CN 201220276322 CN 201220276322 U CN201220276322 U CN 201220276322U CN 202631101 U CN202631101 U CN 202631101U
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Abstract
The utility model relates to a vibration state monitoring device for a marine rotary mechanical shaft system. A vibration signal, a process signal and a rotating speed key phase signal are processed and converted by an analog signal processing module and then are sent into a central processing unit (CPU) module for calculation and storage; an input/output module exchanges data with the CPU module; a power management module comprises a power processing circuit and a power voltage monitoring and resetting circuit; and the power processing circuit supplies power and also monitors and resets voltage of the power. The vibration state monitoring device is small in size and is suitable for a narrow cabin environment of a vessel; sailors can directly learn about a running state of the equipment shaft system in the cabin on site; the state of the shaft system can be intensively monitored in a monitoring room; the flexibility and the convenience of the system are improved; the device adopts a multi-CPU technology, each CPU has different functions and independently works without interference; due to the modular structure of the device, the reliability and the maintainability of the system are improved; and by adopting a standard transmission control protocol/Internet protocol (TCP/IP) network communication protocol, data communication is relatively reliable.
Description
Technical field
The utility model relates to a kind of mechanical vibration measuring technology, and particularly a kind of rotating machinery shaft peculiar to vessel is the Vibration Condition Monitoring device.
Background technology
Rotating machinery is the key equipment in fields such as boats and ships, oil, chemical industry, electric power, Aero-Space, and just the direction towards maximization, high speed, serialization, centralization, robotization develops.Rotating machinery is in the high-speed cruising state for a long time, because various stochastic factor some mechanical faults can occur unavoidably, and any one slight hitch of rotating machinery all possibly cause chain reaction, causes tremendous economic loss even catastrophic effect.Therefore, it is to avoid accident to take place that state in the rotating machinery operational process is monitored with fault anticipation in real time, guarantees the effective means of safety in production.Secondly, the config failure diagnostic system can reduce forced outage rate, reduces maintenance cost, reduces operating cost, has very high income/output investment ratio, researches and develops the very big realistic meaning that has of advanced fault diagnosis system.
Parameters to this type of key equipment; Carry out on-line monitoring like vibration, temperature, speed and numerous other service data and index; Be widely used in sophisticated industry fields such as Aeronautics and Astronautics, nuclear power, and fact proved it is a kind ofly can effectively predict and prevent the successful methods that plant equipment breaks down.High performance day by day and structure complicated along with the Modern Ships system; Consider from safety guarantee and combat performance; In time, accurately, dynamically grasp the fault that running status, prediction, the diagnosis key equipment of ship's fitting is potential and exist, become the important content of naval vessels technical management and the target of pursuit.
At present, domestic on the naval vessel to the vibrational state on-line monitoring and the fault diagnosis of rotating machinery, mostly stay in the analogue instrument stage, vibration monitoring rarely has more and relates to.Therefore, study a kind of good reliability, real-time is high, and volume is little, and no matter the state monitoring apparatus that network transmission performance is good is for the field, naval vessel or industrial circle all has very important meaning.
If need existing apparatus and method are applied to the naval vessel, also there is disadvantage in prior art:
(1) on-line monitoring in the time of for hyperchannel vibration signal, technology signal and other numerous signal, the existing apparatus volume is too huge, is not suitable for the limited cabin environment in complicacy and space;
(2) for the junior ordinary seaman in equipment cabin, the prior art scheme, complicated operation requires operating personnel and monitoring personnel's technical background dark, and existing scheme is not quite suitable for the naval vessel;
(3) the existing measured Monitoring Data of scheme generally is stored on the mass storage on the remote server; For existing naval vessel; Fail all to realize that data networkization is transmitted in Control Room even land remote server, the data storage of existing scheme is not suitable for the naval vessel.
(4) the existing measured Monitoring Data of scheme generally need be carried out follow-up a series of processing, even and can not carry out analyzing and processing, the needed figure of on-the-spot generation.
The utility model content
The utility model is, real-time poor, unhandy problem big to the vibrational state on-line monitoring of present rotating machinery and fault diagnosis volume; Having proposed a kind of rotating machinery shaft peculiar to vessel is the Vibration Condition Monitoring device; Device volume is little, operative intelligence abbreviation list, and efficient is high.
The technical scheme of the utility model is: a kind of rotating machinery shaft peculiar to vessel is the Vibration Condition Monitoring device; Comprise ASH module, CPU module, peripheral input/output module and power management module; Vibration signal, technology signal and rotating speed key signal are sent into the CPU module and are calculated storage, input/output module and CPU module swap data after changing through the ASH resume module; Power management module comprises power supply processing circuit and supply voltage monitoring and reset circuit; Power supply processing circuit provides power supply for each module chip, and the supply voltage monitoring receives each power supply signal, output alarm and control signal with reset circuit.
Behind the block isolating circuit of said vibration signal through the ASH module; After the vibration AC signal passed through the tracking filter circuit of automatic feedback amplifier, centre frequency automatic and adjustable successively, getting into runs simultaneously adopted A/D converter to carry out A/D conversion back output CPU module; After vibration signal and technology signal select 1 analog switch to carry out the quick switching of passage through 8 of ASH module; The vibration signal of output is through transferring the vibration direct current signal at a distance from the alternating current road, and vibration direct current signal and technology signal are successively through automatic amplifying circuit and A/D converter conversion back output CPU module; The rotating speed key signal is earlier through the high frequency interference beyond the low pass filter filters out rotating speed acquisition range of ASH module, and then process comparer and light-coupled isolation outputting standard square-wave signal are to the CPU module.
Said input/output module comprises the capacitive touch screen and the film key of man-machine interaction, and the LCD display of data presentation shows large-size screen monitors with the Control Room that can extend out, the Ethernet interface of data interaction, USB interface, serial ports, the general input and output expansion of GPIO mouth.
Said CPU module comprises OMAP-138 microprocessor minimum system and FPGA field programmable gate array, and the OMAP minimum system mainly comprises double-core OMAP-138 chip, storage system, crystal oscillator clock system and screen displaying driving circuit; Data entering FPGA field programmable gate array carries out pre-service, logic control and decoding after the number conversion of front-end collection signal mode.Said OMAP-138 comprises C6747 DSP and two CPU of ARM926J, and the acquired signal of FPGA field programmable gate array output is sent into dsp chip and carried out computing, and ARM chip output display result is with the communication of various interface data.
The beneficial effect of the utility model is: the utility model rotating machinery shaft peculiar to vessel is the Vibration Condition Monitoring device, and hardware circuit adopts advanced PCB designing technique and selects low-power consumption minitype paster device for use, is more suitable for the narrow and small cabin environment in naval vessel; For the ship's fitting monitoring, both can let the crewman be directly acquainted with the running status of equipment axis system at the scene, cabin, can also expand the usable range of equipment to a great extent at the Control Room Centralized Monitoring, improved dirigibility and convenience that system uses; Device adopts many CPU technology, and each CPU is responsible for difference in functionality, works alone and does not disturb mutually; The modular construction of device has not only improved the maintainability that reliability has also improved system; Device adopts linux system framework embedded real-time operating system, and is more stable, more reliable, can avoid virus to disturb fully, improved the stability and the reliability of system's operation; Data communication adopts the TCP/IP network communication protocol of standard, makes data communication more reliable.
Description of drawings
Fig. 1 is a Vibration Condition Monitoring apparatus structure synoptic diagram for the utility model rotating machinery shaft peculiar to vessel;
Fig. 2 is a Vibration Condition Monitoring plant network topological diagram for the utility model rotating machinery shaft peculiar to vessel.
Embodiment
Rotating machinery shaft peculiar to vessel as shown in fig. 1 is a Vibration Condition Monitoring apparatus structure synoptic diagram, mainly comprises ASH module 1, CPU module 3, peripheral input/output module 2 and power management four module 4 compositions.
ASH module 1 as shown in fig. 1: ASH module main processing comprises vibration signal AC portion 5, vibration signal direct current component 6, technology signal 7,8 four types of signals of rotating speed key signal.In partial vibration signal communication processing section 5 shown in the figure; Vibration signal is through behind the block isolating circuit; Wherein direct current signal is by the only remaining AC portion of filtering; AC signal after automatic feedback is amplified the tracking filter circuit with the centre frequency automatic and adjustable, the entering employing A/D converter of running simultaneously, the vibration signal AC portion becomes digital signal and can directly get into follow-up CPU module 3 and be for further processing like this.Vibration signal direct current component 6 and technology signal 7 since to real-time of signal vibration exchanges lowly, therefore before above-mentioned two kinds of signals, added 8 and selected 1 analog switch to carry out passage to switch fast, so just can expand at limited space realization hyperchannel.Vibration signal direct current component 6 has promptly been incorporated separated alternating current road into unique difference that technology signal 7 is handled in the middle of circuit.When device was in synchronous tracking rotating speed sampling pattern, rotating speed key signal 8 became the key of whole device, and it is undertaking the control of A/D sampling rate, and is therefore very important to its processing.Signal then can obtain purer glitch-free standard square-wave signal through comparer and optocoupler at first through the high frequency interference beyond the low pass filter filters out rotating speed acquisition range.
Peripheral input/output module 2 mainly comprises the capacitive touch screen 10 and film key 13 that can realize good man-machine interaction; The machine LCD display 11 of joining of realization data presentation output shows large-size screen monitors 12 with the Control Room that can extend out, and can be implemented in upper server or the mutual digital transmission interfaces such as the general input and output expansion of Ethernet interface 15, usb 16, serial ports 17, GPIO mouth 14 of mobile phone terminal good data.
Power management module 4 mainly comprises AC/DC conversion, various voltage transitions and power management and reset circuit.The groundwork of AD/DC conversion is to convert alternating current 220V into the 24V DC voltage, and various then voltage transitions part is the required various direct current of each module chip of system with the 24V dc voltage conversion.Power management and reset circuit are responsible for the monitoring and the abnormal alarm of the various voltage of total system, and system power-on reset and hand-reset control are provided.
CPU module 3:CPU module 3 is cores of whole device, and it mainly comprises OMAP-138 minimum system 18 and two core circuit parts of FPGA19.The main control chip of CPU module 3 belongs to three nuclears in fact; OMAP-138 comprises two CPU; Be C6747 DSP and ARM926J, dsp chip mainly is responsible for most of algorithm arithmetic section that acquired signal received and bore whole device, and the ARM chip is responsible for whole embedded OS; The main interfacial effect of being responsible for whole device shows; The communication of various interface data, the major functions such as management in black box data storehouse, FPGA19 mainly is responsible for the pre-service after the front-end collection signal mode number conversion of whole device, the logic control and the decoding of the most of chip of device.The OMAP minimum system mainly comprises double-core OMAP-138 chip, storage system, crystal oscillator clock system and screen displaying driving circuit.Wherein storage system mainly by the DDR internal memory that can carry out exchanges data and buffer memory, be responsible for the black box pattern deposit the solid hard disk of Large Volume Data database data, as the high capacity SD card of corresponding data backup, be responsible for storing Nandflash on SPI flash that the UBOOT embedded OS boot of similar PC BIOS deposits and the plate that is used for the carry embedded OS.
The performing step of rotating machinery shafting vibration state monitoring method peculiar to vessel is following:
1. confirm monitoring scheme.Consider type, quantity, the position of placement sensor according to type, characteristics and the required monitoring parameter of rotating machinery and axle system; Confirm device cabling mode, device position etc. according to this cabin environmental baseline; According to full ship existence conditions specified data communication modes; If do not possess full ship network monitoring pattern, can select off line black box monitoring pattern, arrange as carrying out full ship LAN; Then can select LAN Control Room monitoring pattern 21; Even whole gear is equipped with marine satellite transmission data capability 20, and system can adopt satellite communication remote monitoring pattern, network topological diagram as shown in Figure 2 like this.
2. placement sensor and wiring.Near each bearing of shaft system of unit, arrange the vibration displacement sensor according to pre-determined scheme; Arrange vibration velocity or acceleration transducer at the equipment key position; Layout speed probe under each axle system; Technology signal transducer dissimilar according to the requirement layout of status monitoring (like oil temperature, oil pressure, air pressure, hydraulic pressure etc.) and access switching value signal (signal etc. is exported in input/output signal, onsite alarming discrepancy like each valve) shield connecting line and lay monitoring device according to scheme arrangement then; And the connection all devices, device is arranged to debugging mode, debugging front end all the sensors is till guaranteeing not have any problem.
3. treat after the unit of the monitoring start operation; The vibration displacement sensor is with the vibration displacement sensor feeder that collects; Device ASH part is divided into signal direct current and exchanges, and behind analog signal processing circuit separately, the digital signal after the conversion is sent into rear end CPU module.
4. the digital signal of at first accepting after the conversion is the FPGA kernel, and the DSP that sends to OMAP-138 after the arrangement is changed, repacked to the big small end of the digital signal after FPGA will change.
5. after getting into DSP; DSP does digital filtering with signal earlier; Needs according to the ARM instruction carry out certain algorithm process, need check spectrogram such as system, and DSP just does the FFT conversion with digital signal; Check fundamental frequency orbit of shaft center figure like need, then DSP will carry out after the fundamental frequency bandpass filtering treatment data are given the ARM kernel of OMAP to signal.
6.ARM the operational scheme of kernel is that the boot startup embedded OS by external SPI flash progressively loads various peripheral hardwares and drives (comprising LCD, network interface, hard disk or the like), then starter gear interface behind the os starting.User or crewman select to propose different requirement to ARM through device interface 22; Need check the small echo figure of certain measuring point such as the user; The user touches the interface, and the ARM response requires DSP that data are carried out wavelet transformation to the DSP request of sending; After DSP response and the completion data that dispose are sent to ARM, ARM receives the back and on screen, draws respective graphical through interface program.
7. in ARM display interface operation, the data of the being gathered form with daily database, start and stop database, black box data storehouse is stored on the device solid state hard disc.If device adopts off line black box monitoring pattern, then can pass through device communication interface, the historical data that is stored in solid state hard disc is uploaded to the monitoring station data are carried out labor, diagnosis.
8. if monitoring device adopts full ship network monitoring pattern; The monitoring device of each unit sends packet and gives the monitoring station; The application software of monitoring station is carried out corresponding data processing, demonstration, diagnosis according to user's needs, simultaneously all data is stored in the big capacity hard disk of monitoring station server by different units with the database form.
9. if adopt the remote monitoring pattern, the user can pass through remote computer browser Input Monitor Connector site server IP address, and carries out transferring the data that are stored on the monitoring station server after the corresponding authority login.If the user need pass through mobile phone access, corresponding cell-phone customer terminal can be installed, through the client-access monitor server, transfer data and check set state.
Hardware circuit adopts advanced PCB designing technique; And all chips all adopt low-power consumption minitype paster device, in limited volumetric spaces, but a table apparatus synchronous monitoring 32 road vibration signals, 96 tunnel technology signals; 128 way switch amount signals are more suitable for the narrow and small cabin environment in naval vessel.
For the ship's fitting monitoring, both can let the crewman be directly acquainted with the running status of equipment axis system at the scene, cabin, can also expand through external device, even can pass through marine satellite remote monitoring at the Control Room Centralized Monitoring in the base.For stationary plant, this monitoring method not only can through PC in LAN or the Internet unreeling be running status, can also be through relative client be installed in mobile phone terminal, in on-the-spot or long-rangely directly check set state through mobile phone.Expand the usable range of equipment to a great extent, improved dirigibility and convenience that system uses.
Peripheral input/output module mainly comprises capacitive touch screen and the film key that can realize good man-machine interaction; The machine LCD display of joining of realizing data presentation output shows large-size screen monitors with the Control Room that can extend out, and can be implemented in digital transmission interfaces such as the mutual Ethernet interface of upper server or mobile phone terminal good data, USB interface, serial ports.
Device adopts on-keyboard, no mouse, no conventional hard disk hardware, reduces on-the-spot easily worn part like this;
Device adopts many CPU technology, and each CPU is responsible for difference in functionality, works alone and does not disturb mutually; The modular construction of device, various functions adhere to the different hardware module separately, have not only improved the maintainability that reliability has also improved system; Device adopts linux system framework embedded real-time operating system; More stable, more reliable, can avoid virus to disturb fully, and all software programmings also strictly observe the LINUX system architecture; Through strict non-fault test, improved the stability and the reliability of system's operation like this; Data communication adopts the TCP/IP network communication protocol of standard, makes data communication more reliable.The above function and the structural characteristics of device make device can adapt to the more complicated environment peculiar to vessel of usefulness than the land, but the reliability and stability of assurance device under environment peculiar to vessel.
Claims (5)
1. a rotating machinery shaft peculiar to vessel is the Vibration Condition Monitoring device; It is characterized in that, comprise ASH module, CPU module, peripheral input/output module and power management module, after vibration signal, technology signal and rotating speed key signal are changed through the ASH resume module; Send into the CPU module and calculate storage; Input/output module and CPU module swap data, power management module comprise power supply processing circuit and supply voltage monitoring and reset circuit, and power supply processing circuit provides power supply for each module chip; The supply voltage monitoring receives each power supply signal, output alarm and control signal with reset circuit.
2. be the Vibration Condition Monitoring device according to the said rotating machinery shaft peculiar to vessel of claim 1; It is characterized in that; Behind the block isolating circuit of said vibration signal through the ASH module; After the vibration AC signal passed through the tracking filter circuit of automatic feedback amplifier, centre frequency automatic and adjustable successively, getting into runs simultaneously adopted A/D converter to carry out A/D conversion back output CPU module; After vibration signal and technology signal select 1 analog switch to carry out the quick switching of passage through 8 of ASH module; The vibration signal of output is through transferring the vibration direct current signal at a distance from the alternating current road, and vibration direct current signal and technology signal are successively through automatic amplifying circuit and A/D converter conversion back output CPU module; The rotating speed key signal is earlier through the high frequency interference beyond the low pass filter filters out rotating speed acquisition range of ASH module, and then process comparer and light-coupled isolation outputting standard square-wave signal are to the CPU module.
3. be the Vibration Condition Monitoring device according to the said rotating machinery shaft peculiar to vessel of claim 1; It is characterized in that; Said input/output module comprises the capacitive touch screen and the film key of man-machine interaction; The LCD display of data presentation shows large-size screen monitors with the Control Room that can extend out, the Ethernet interface of data interaction, USB interface, serial ports, the general input and output expansion of GPIO mouth.
4. be the Vibration Condition Monitoring device according to the said rotating machinery shaft peculiar to vessel of claim 1; It is characterized in that; Said CPU module comprises OMAP-138 microprocessor minimum system and FPGA field programmable gate array, and the OMAP minimum system mainly comprises double-core OMAP-138 chip, storage system, crystal oscillator clock system and screen displaying driving circuit; Data entering FPGA field programmable gate array carries out pre-service, logic control and decoding after the number conversion of front-end collection signal mode.
5. be the Vibration Condition Monitoring device according to the said rotating machinery shaft peculiar to vessel of claim 4; It is characterized in that; Said OMAP-138 comprises C6747 DSP and two CPU of ARM926J; The acquired signal of FPGA field programmable gate array output is sent into dsp chip and is carried out computing, and ARM chip output display result is with the communication of various interface data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220276322 CN202631101U (en) | 2012-06-13 | 2012-06-13 | Vibration state monitoring device for marine rotary mechanical shaft system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220276322 CN202631101U (en) | 2012-06-13 | 2012-06-13 | Vibration state monitoring device for marine rotary mechanical shaft system |
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| CN202631101U true CN202631101U (en) | 2012-12-26 |
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| CN 201220276322 Expired - Lifetime CN202631101U (en) | 2012-06-13 | 2012-06-13 | Vibration state monitoring device for marine rotary mechanical shaft system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735329A (en) * | 2012-06-13 | 2012-10-17 | 中国船舶重工集团公司第七0四研究所 | Device and method for monitoring vibration state of marine rotary mechanical shaft system |
| CN115435889A (en) * | 2022-09-27 | 2022-12-06 | 中国船舶集团有限公司第七一一研究所 | Marine vibration signal acquisition module |
-
2012
- 2012-06-13 CN CN 201220276322 patent/CN202631101U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735329A (en) * | 2012-06-13 | 2012-10-17 | 中国船舶重工集团公司第七0四研究所 | Device and method for monitoring vibration state of marine rotary mechanical shaft system |
| CN115435889A (en) * | 2022-09-27 | 2022-12-06 | 中国船舶集团有限公司第七一一研究所 | Marine vibration signal acquisition module |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151123 Address after: 200031 Xuhui District, Hengshan Road, No. 10, Patentee after: SHANGHAI CSIC SHIP PROPULSION EQUIPMENT CO., LTD. Address before: 200031 Xuhui District, Hengshan Road, No. 10, Patentee before: No.704 Institute of China Shipbuilding Industry Corporation |
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| CX01 | Expiry of patent term |
Granted publication date: 20121226 |
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| CX01 | Expiry of patent term |