CN103256173B - Fan monitoring method and system, blower fan group monitoring system - Google Patents
Fan monitoring method and system, blower fan group monitoring system Download PDFInfo
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- CN103256173B CN103256173B CN201210040203.4A CN201210040203A CN103256173B CN 103256173 B CN103256173 B CN 103256173B CN 201210040203 A CN201210040203 A CN 201210040203A CN 103256173 B CN103256173 B CN 103256173B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The embodiment of the present invention provides a kind of fan monitoring method and system, blower fan group monitoring system, and wherein, fan monitoring system includes: fan monitoring device, interlocking module and video monitor；Described fan monitoring device, for receiving the alarm signal that the controller of fan being arranged on blower fan sends, and is sent to interlocking module by described alarm signal, and described alarm signal includes time of fire alarming and the mark of described blower fan；Described interlocking module, for resolving the mark of time of fire alarming and the blower fan comprised in described alarm signal, the described alarm signal after resolving is sent to described video monitor；Described video monitor, for the mark according to described blower fan and described time of fire alarming, determines the blower fan image information that mark and time of fire alarming with described blower fan mate, and shows, it is possible to solve the problem that existing Wind turbines monitor mode exists hysteresis quality.
Description
Technical field
The present invention relates to technical field of wind power generation, particularly relate to fan monitoring method and system, blower fan group monitoring system.
Background technology
Along with the development of wind power industry, the safe and stable operation of wind power generating set is more and more concerned.Geographical position residing for wind energy turbine set is remoter, and condition is relatively more severe, once breaks down, and not only maintenance cost is high, and can affect generated energy because shutting down, and causes huge economic loss.Therefore, Wind turbines is installed monitoring system, attendant can be helped to find unit fault as early as possible, in a planned way keep in repair, thus improve unit utilization rate, extend the life-span of unit.
During fan operation, once occur hypervelocity phenomenon can have a strong impact on the security reliability of blower fan, will also result in the biggest economic loss simultaneously.Therefore, general Wind turbines all can utilize speed probe to detect whether blower fan exceeds the speed limit, and when rotating speed exceedes preset value, can send alarm signal, the simultaneously action of blower fan overspeed protective device, fan parking.But when sensor experiences failure, unreasonable, the overspeed protective device fault of preset value etc. all can cause the warning of mistake, result even in serious consequence.
Field personnel's understanding to blower fan situation for convenience, in existing monitoring system, is typically provided with video camera in fan engine room, when receiving alarm signal, staff recalls video again and carries out accident analysis, is not difficult to find out, the problem that existing this monitor mode exists hysteresis quality.
Summary of the invention
The embodiment of the present invention provides a kind of fan monitoring method and system, blower fan group monitoring system, it is possible to solve the problem that existing Wind turbines monitor mode exists hysteresis quality.
On the one hand the embodiment of the present invention provides a kind of fan monitoring system, including: fan monitoring device, interlocking module and video monitor；
Described fan monitoring device, for receiving the alarm signal that the controller of fan being arranged on blower fan sends, and is sent to interlocking module by described alarm signal, and described alarm signal includes time of fire alarming and the mark of described blower fan；
Described interlocking module, for resolving the mark of time of fire alarming and the blower fan comprised in described alarm signal, the described alarm signal after resolving is sent to described video monitor；
Described video monitor, for the mark according to described blower fan and described time of fire alarming, determines the blower fan image information that mark and time of fire alarming with described blower fan mate, and shows.
The another aspect of the embodiment of the present invention provides a kind of fan monitoring method, including:
Fan monitoring device receives the alarm signal that the controller of fan being arranged on blower fan sends, and described alarm signal is sent to interlocking module, and described alarm signal includes time of fire alarming and the mark of described blower fan；
Described interlocking module resolves the time of fire alarming and the mark of blower fan comprised in described alarm signal, and the described alarm signal after resolving is sent to video monitor；
Described video monitor, according to the mark of described blower fan and described time of fire alarming, determines the blower fan image information that mark and time of fire alarming with described blower fan mate, and shows.
The another aspect of the embodiment of the present invention provides a kind of blower fan group monitoring system, including:
Above-mentioned fan monitoring system；
Many Fans, at least install a controller of fan in every Fans.
The embodiment of the present invention passes through interlocking module, resolve mark and the time of fire alarming of the blower fan comprised in the alarm signal that fan monitoring device sends, and the alarm signal after resolving is sent to video monitor, so that video monitor is according to the mark of blower fan and time of fire alarming, the blower fan image information that display is mated with mark and the time of fire alarming of blower fan, it is analyzed for staff and processes, it is possible to solving the problem that existing fan monitoring mode exists hysteresis quality.
Accompanying drawing explanation
The structural representation of the fan monitoring system that Fig. 1 provides for the embodiment of the present invention one；
The structural representation of the fan monitoring system that Fig. 2 provides for the embodiment of the present invention two；
The schematic flow sheet of the fan monitoring method that Fig. 3 provides for the embodiment of the present invention three；
The structural representation of the blower fan group monitoring system that Fig. 4 provides for the embodiment of the present invention four.
Detailed description of the invention
The structural representation of the fan monitoring system that Fig. 1 provides for the embodiment of the present invention one；Including: fan monitoring device 11, interlocking module 12 and video monitor 13；
Fan monitoring device 11, for receiving the alarm signal that the controller of fan being arranged on blower fan sends, and is sent to interlocking module 12 by described alarm signal, and described alarm signal includes time of fire alarming and the mark of described blower fan；
Interlocking module 12, for resolving the mark of time of fire alarming and the blower fan comprised in described alarm signal, the described alarm signal after resolving is sent to video monitor 13；
Video monitor 13, for the mark according to described blower fan and described time of fire alarming, determines the blower fan image information that mark and time of fire alarming with described blower fan mate, and shows.
For example, the fan monitoring device of the present embodiment is attached by wind field proprietary network with controller of fan, when blower fan generation abnormal conditions or fault, abnormal conditions for example include hypervelocity, high temperature, high vibration etc., and fault refers to that blower fan quits work under normal circumstances.The controller of fan being arranged on blower fan aweather monitor unit sends alarm signal, wherein, alarm signal includes the mark of time of fire alarming and blower fan, for example, time of fire alarming can be determined by the current time in system, as controller of fan sends current time in system during alarm signal, the mark of blower fan can be the blower fan number that system pre-sets.Fan monitoring device, after receiving the alarm signal that controller of fan sends, can set up the corresponding relation of the mark of described controller of fan and described blower fan.
Fan monitoring device, interlocking module and the video monitor of the present embodiment can be arranged on the central control room of wind field, and fan monitoring device, interlocking module and video monitor are communicatively coupled by proprietary network.When interlocking module receives the alarm signal that fan monitoring device sends, alarm signal can be resolved, as resolved the mark of time of fire alarming and the blower fan comprised in alarm signal, and will resolve after alarm signal be sent to described video monitor by proprietary network.
The embodiment of the present invention passes through interlocking module, resolve mark and the time of fire alarming of the blower fan comprised in the alarm signal that fan monitoring device sends, and the alarm signal after resolving is sent to video monitor, so that video monitor is according to the mark of blower fan and time of fire alarming, the blower fan image information that display is mated with mark and the time of fire alarming of blower fan, it is analyzed for staff and processes, it is possible to solving the problem that existing fan monitoring mode exists hysteresis quality.
The structural representation of the fan monitoring system that Fig. 2 provides for the embodiment of the present invention two；Further expanding on the basis of system shown in Figure 1, described system also includes: controller of fan 14, the first acquisition module 15 and the second acquisition module 16 being arranged on same blower fan with controller of fan 14；
First acquisition module 15 is connected with controller of fan 14, for gathering the fan operation parameter of described blower fan, and is sent to controller of fan 14；
Second acquisition module 16 is connected with video monitor 13, for gathering the blower fan video information of described blower fan, and is sent to video monitor 13, and described blower fan video information includes blower fan image information, the mark of blower fan and image acquisition time；
Controller of fan 14, for receiving the fan operation parameter that the first acquisition module 15 sends, however, it is determined that described fan operation parameter exceedes default fan operation parameter threshold, then send described alarm signal fan watch-dog 11.
For example, controller of fan 14 can be attached by wind field proprietary network with the first acquisition module 15, and video monitor 13 can also be attached by wind field proprietary network with the second acquisition module 16.Specifically, video monitor can be with centrally disposed control room, and the first acquisition module 15 and the second acquisition module 16 can be installed in fan engine room.
For example, when fan operation parameter is rotating speed, rotary speed threshold value can be pre-set in controller of fan, when the rotating speed that the first acquisition module 15 that controller of fan 14 receives collects exceedes default rotary speed threshold value, send alarm signal.Yes it may be noted that, the fan operation parameter described in the present embodiment is not limited to rotating speed, and in further example, described fan operation parameter can also include the vibration parameters of blower fan or the temperature parameter etc. of blower fan.
In the present embodiment, when fan monitoring device 11 receives the alarm signal that controller of fan 14 sends, it is also possible to start abnormal protection action, make wind power generating set shut down.Specifically, fan monitoring device 11, be additionally operable to resolve the mark of the blower fan comprised in described alarm signal, according to the mark of described blower fan, send shutdown operation instruct to described controller of fan；
Controller of fan 14, is additionally operable to receive the shutdown operation instruction that fan monitoring device 11 sends, instructs according to described shutdown operation, control described blower fan out of service.
Wherein, the mark of blower fan can be the blower fan number that system pre-sets, it is also possible to be the first acquisition module or the mark of controller of fan arranged in described blower fan.
Alternatively, controller of fan 14 is additionally operable to if it is determined that described fan operation parameter is less than fan operation parameter threshold, then send described fan operation parameter fan watch-dog 11 and show.Accordingly, fan monitoring device 11, it is additionally operable to show the described fan operation parameter that controller of fan 14 sends in real time.
Further, video monitor 13 specifically includes:
Memory module 131, is additionally operable to receive the blower fan video information that the second acquisition module 16 sends, and described blower fan video information is stored in the storage element corresponding with the mark of described blower fan；
Enquiry module 132, the mark of the described blower fan in alarm signal after the parsing sent according to described interlocking module, inquire about the storage element corresponding with the mark of described blower fan；
Calling module 133, described time of fire alarming in alarm signal after the parsing sent according to described interlocking module determines the image acquisition time of correspondence, call, in the storage element that the mark of described blower fan is corresponding, the blower fan image information mated with described image acquisition time, and show.
In a practical situation, every Fans is all installed the second acquisition module (such as video camera), the second acquisition module Real-time Collection blower fan video information.Further, the memory module 131 of the present embodiment is provided with multiple storage element, each storage element and the mark one_to_one corresponding of every Fans, for storing the blower fan video information corresponding with the mark of described blower fan, when the alarm signal after interlocking module 12 will resolve is sent to video monitor 13, triggers video monitor 13 and show the blower fan image information mated with mark and the time of fire alarming of described blower fan.
It should be noted that in a practical situation, above-mentioned first acquisition module 15 at least includes two velocity sensors, in the slip ring of the gear box side that velocity sensor is arranged on described blower fan, is used for detecting hub rotation speed；Another velocity sensor is arranged on the electromotor non-drive side of described blower fan, is used for detecting the rotating speed of electromotor；Above-mentioned second acquisition module 16 at least includes a video camera.Accordingly, fan operation parameter can include hub rotation speed and generator speed, controller of fan is preset with hub rotation speed threshold value and generator speed threshold value, when hub rotation speed exceedes hub rotation speed threshold value, and/or generator speed is when exceeding generator speed threshold value, controller of fan aweather monitor unit sends alarm signal.It is pointed out that the first acquisition module described in the present embodiment is not limited to velocity sensor, in further example, described first acquisition module can also include vibrating sensor or temperature sensor etc..
The embodiment of the present invention passes through interlocking module, resolve mark and the time of fire alarming of the blower fan comprised in the alarm signal that fan monitoring device sends, and the alarm signal after resolving is sent to video monitor, so that video monitor is according to the mark of blower fan and time of fire alarming, the blower fan image information that display is mated with mark and the time of fire alarming of blower fan, it is analyzed for staff and processes, it is possible to solving the problem that existing blower fan group prosecutor formula exists hysteresis quality.Meanwhile, the fan monitoring device of the present embodiment can send shutdown operation according to alarm signal and instruct to the controller of fan mated with the mark of blower fan, starts stoppage protection action, it is possible to increase the safety of fan operation.
The schematic flow sheet of the fan monitoring method that Fig. 3 provides for the embodiment of the present invention three, specifically includes:
Step 301, fan monitoring device receive the alarm signal that the controller of fan being arranged on blower fan sends, and described alarm signal is sent to interlocking module, and described alarm signal includes time of fire alarming and the mark of described blower fan.
For example, the fan monitoring device of the present embodiment is attached by wind field proprietary network with controller of fan, when there is hypervelocity and fault in blower fan, the controller of fan being arranged on blower fan aweather monitor unit sends alarm signal, and wherein, alarm signal includes the mark of time of fire alarming and blower fan, for example, time of fire alarming can be determined by the current time in system, and as controller of fan sends current time in system during alarm signal, the mark of blower fan can be the blower fan number that system pre-sets.Fan monitoring device, after receiving the alarm signal that controller of fan sends, can set up the corresponding relation of the mark of described controller of fan and described blower fan.
In the present embodiment, before step 301, the first acquisition module Real-time Collection fan operation parameter being arranged on same blower fan with controller of fan, and it is sent to controller of fan by wind field proprietary network.
The fan operation parameter that controller of fan sends according to the first acquisition module, however, it is determined that described fan operation parameter exceedes fan operation parameter threshold, then send described alarm signal fan watch-dog.
For example, when fan operation parameter is rotating speed, rotary speed threshold value can be pre-set in controller of fan, when the rotating speed that the first acquisition module that controller of fan receives collects exceedes default rotary speed threshold value, send alarm signal.Yes it may be noted that, the fan operation parameter described in the present embodiment is not limited to rotating speed, and in further example, described fan operation parameter can also include the vibration parameters of blower fan or the temperature parameter etc. of blower fan.
In the present embodiment, when fan monitoring device receives the alarm signal that controller of fan sends, it is also possible to start overspeed protection action, make wind power generating set shut down.Specifically, fan monitoring device resolves in described alarm signal the mark of the blower fan comprised, according to the mark of described blower fan, send shutdown operation instruct to described controller of fan；
Accordingly, the shutdown operation instruction that controller of fan sends according to fan monitoring device, control described blower fan out of service.
Wherein, the mark of blower fan can be the blower fan number that system pre-sets, it is also possible to be the first acquisition module or the mark of controller of fan arranged in described blower fan.
Alternatively, controller of fan if it is determined that described fan operation parameter is less than fan operation parameter threshold, then sends described fan operation parameter fan watch-dog and shows.
Accordingly, fan monitoring device shows the described fan operation parameter that controller of fan sends in real time.
It should be noted that, in the present embodiment, alarm signal can be sent to interlocking module before sending shutdown operation instruction by fan monitoring device, or after sending shutdown operation instruction, alarm signal can be sent to interlocking module.
Step 302, described interlocking module resolve the time of fire alarming and the mark of blower fan comprised in described alarm signal, and the described alarm signal after resolving is sent to video monitor.
For example, fan monitoring device, interlocking module and the video monitor of the present embodiment can be arranged on the central control room of wind field, and fan monitoring device, interlocking module and video monitor are communicatively coupled by proprietary network.When interlocking module receives the alarm signal that fan monitoring device sends, alarm signal can be resolved, as resolved the mark of time of fire alarming and the blower fan comprised in alarm signal, and will resolve after alarm signal be sent to described video monitor by proprietary network.
Step 303, described video monitor, according to the mark of described blower fan and described time of fire alarming, determine the blower fan image information that mark and time of fire alarming with described blower fan mate, and show.
In the present embodiment, before step 301, the second acquisition module being arranged on same blower fan with controller of fan, Real-time Collection blower fan video information, described blower fan video information for example includes the mark of blower fan, blower fan image information and image acquisition time, by wind field proprietary network, blower fan video information is sent to video monitor in real time.
Accordingly, the described blower fan video information that the second acquisition module is sent by video monitor is stored in the storage element corresponding with the mark of described blower fan.
When alarm signal after video monitor receives the parsing that interlocking module sends, according to the mark of the described blower fan in described alarm signal, inquiry identifies corresponding storage element with described blower fan；Determine the image acquisition time of correspondence further according to the described time of fire alarming in described alarm signal, call, in the storage element that the mark of described blower fan is corresponding, the blower fan image information mated with described image acquisition time, and show.
In a practical situation, every Fans is all installed the second acquisition module (such as video camera), the second acquisition module Real-time Collection blower fan video information.Further, the blower fan video information that the second acquisition module in every Fans sends is stored in storage element corresponding with the mark of every Fans by the video monitor of the present embodiment, when the alarm signal after interlocking module will resolve is sent to video monitor, triggers video monitor and show the blower fan image information that mark and time of fire alarming with described blower fan mate.
It should be noted that in a practical situation, above-mentioned first acquisition module at least includes two velocity sensors, in the slip ring of the gear box side that velocity sensor is arranged on described blower fan, is used for detecting hub rotation speed；Another velocity sensor is arranged on the electromotor non-drive side of described blower fan, is used for detecting the rotating speed of electromotor；Above-mentioned second acquisition module at least includes a video camera.Accordingly, fan operation parameter can include hub rotation speed and generator speed, controller of fan is preset with hub rotation speed threshold value and generator speed threshold value, when hub rotation speed exceedes hub rotation speed threshold value, and/or generator speed is when exceeding generator speed threshold value, controller of fan aweather monitor unit sends alarm signal.It is pointed out that the first acquisition module described in the present embodiment is not limited to velocity sensor, in further example, described first acquisition module can also include vibrating sensor or temperature sensor etc..
Method shown in the present embodiment specifically can realize the function of system described in Fig. 1 or embodiment illustrated in fig. 2, and it realizes principle and technique effect repeats no more.
The structural representation of the blower fan group monitoring system that Fig. 4 provides for the embodiment of the present invention four, including:
Fan monitoring system described in embodiment illustrated in fig. 1；
Many Fans, further, at least install a controller of fan, two acquisition modules in every Fans.
System shown in the present embodiment can specifically perform the method described in embodiment illustrated in fig. 3, and it realizes principle and technique effect repeats no more.
Last it is noted that above example is only in order to illustrate technical scheme, it is not intended to limit；Although the present invention being described in detail with reference to previous embodiment, it will be understood by those within the art that: the technical scheme described in foregoing embodiments still can be modified by it, or wherein portion of techniques feature is carried out equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (6)
1. a fan monitoring system, including: fan monitoring device, interlocking module and video monitor；Described fan monitoring device, for receiving the alarm signal that the controller of fan being arranged on blower fan sends, and is sent to interlocking module by described alarm signal, and described alarm signal includes time of fire alarming and the mark of described blower fan；Described interlocking module, for resolving the mark of time of fire alarming and the blower fan comprised in described alarm signal, the described alarm signal after resolving is sent to described video monitor；Described video monitor, for the mark according to described blower fan and described time of fire alarming, determines the blower fan image information that mark and time of fire alarming with described blower fan mate, and shows；Wherein, described fan monitoring system also includes: described controller of fan, the first acquisition module being arranged on same blower fan with described controller of fan and the second acquisition module；Described first acquisition module is connected with described controller of fan, for gathering the fan operation parameter of described blower fan, and is sent to described controller of fan；Described second acquisition module is connected with described video monitor, for gathering the blower fan video information of described blower fan, and is sent to described video monitor, and described blower fan video information includes blower fan image information；Described controller of fan, for receiving the fan operation parameter that described first acquisition module sends, however, it is determined that described fan operation parameter exceedes default fan operation parameter threshold, then send described alarm signal to described fan monitoring device, it is characterised in that:
Described fan monitoring device, is additionally operable to resolve the mark of the blower fan comprised in described alarm signal, according to the mark of described blower fan, sends shutdown operation and instructs to described controller of fan；
Described controller of fan, is additionally operable to receive the shutdown operation instruction that described fan monitoring device sends, instructs according to described shutdown operation, control described blower fan out of service；
Described blower fan video information also includes: the mark of described blower fan and image acquisition time.
System the most according to claim 1, it is characterised in that described video monitor includes:
Memory module, for receiving the blower fan video information that described second acquisition module sends, and is stored in described blower fan video information in the storage element corresponding with the mark of described blower fan；
Enquiry module, the mark of the described blower fan in alarm signal after the parsing sent according to described interlocking module, inquire about the storage element that the mark of local and described blower fan is corresponding；
Calling module, described time of fire alarming in alarm signal after the parsing sent according to described interlocking module determines the image acquisition time of correspondence, call, in the storage element that the mark of described blower fan is corresponding, the blower fan image information mated with described image acquisition time, and show.
System the most according to claim 1 and 2, it is characterized in that, described first acquisition module at least includes two velocity sensors, in the slip ring of the gear box side that one velocity sensor is arranged on described blower fan, for detecting hub rotation speed, another velocity sensor is arranged on the electromotor non-drive side of described blower fan, for detecting the rotating speed of electromotor；Described second acquisition module at least includes a video camera.
4. a fan monitoring method, including: fan monitoring device receives the alarm signal that the controller of fan being arranged on blower fan sends, and described alarm signal is sent to interlocking module, and described alarm signal includes time of fire alarming and the mark of described blower fan；Described interlocking module resolves the time of fire alarming and the mark of blower fan comprised in described alarm signal, and the described alarm signal after resolving is sent to video monitor；Described video monitor, according to the mark of described blower fan and described time of fire alarming, determines the blower fan image information that mark and time of fire alarming with described blower fan mate, and shows；Wherein, described fan monitoring device includes before receiving the alarm signal that controller of fan sends: described controller of fan receives the fan operation parameter that the first acquisition module sends, and described controller of fan and described first acquisition module are positioned in same blower fan；Described controller of fan if it is determined that described fan operation parameter exceedes default fan operation parameter threshold, then sends described alarm signal to described fan monitoring device, it is characterised in that:
Described fan monitoring device includes after receiving the alarm signal that controller of fan sends:
Described fan monitoring device resolves the mark of the blower fan comprised in described alarm signal, sends shutdown operation and instructs to described controller of fan；
Described controller of fan instructs according to described shutdown operation, controls described blower fan out of service.
Method the most according to claim 4, it is characterised in that described fan monitoring device also includes before receiving the alarm signal that controller of fan sends:
Described video monitor receives the blower fan video information that the second acquisition module sends, and described blower fan video information includes that blower fan image information, the mark of blower fan and image acquisition time, described second acquisition module and described first acquisition module are positioned in same blower fan；
Described blower fan video information is stored in the storage element corresponding with the mark of described blower fan by described video monitor；
Described video monitor, according to the mark of described blower fan and described time of fire alarming, determines the blower fan image information that mark and time of fire alarming with described blower fan mate, and carries out display and specifically include:
According to the mark of the described blower fan in the alarm signal after the parsing that described interlocking module sends, inquire about the storage element that the mark of local and described blower fan is corresponding；
The image acquisition time of correspondence is determined according to the described time of fire alarming in the alarm signal after the parsing that described interlocking module sends, call, in the storage element that the mark of described blower fan is corresponding, the blower fan image information mated with described image acquisition time, and show.
6. a blower fan group monitoring system, it is characterised in that including:
Fan monitoring system as according to any one of claim 1-3 and many Fans.
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| CN109167959B (en) * | 2018-09-07 | 2020-04-03 | 浙江大华技术股份有限公司 | Video acquisition equipment, system and video signal transmission method |
| CN108958137A (en) * | 2018-09-10 | 2018-12-07 | 中国长江动力集团有限公司 | Generating set warning device and generating set alarm method |
| CN109838407B (en) * | 2019-03-19 | 2020-05-08 | 上海烟草集团有限责任公司 | Dust removal fan operation monitoring method and system |
| CN111787290B (en) * | 2020-07-29 | 2023-03-28 | 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） | Ship data transmission method and device and control terminal |
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| CN101761543A (en) * | 2008-12-25 | 2010-06-30 | 上海电气自动化设计研究所有限公司 | Overspeed protective device and overspeed protective method of wind driven generator |
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