CN102620771A - Equipment for monitoring state of current collector of medium and low-speed magnetic suspension train - Google Patents
Equipment for monitoring state of current collector of medium and low-speed magnetic suspension train Download PDFInfo
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Abstract
The invention discloses equipment for monitoring the state of a current collector of a medium and low-speed magnetic suspension train. The equipment comprises a data acquisition system, an image acquisition system and a data storing and processing system, wherein the data acquisition system and the image acquisition system transmit detected motion state and current collecting state information and a motion image to the data storing and processing system; and the data storing and processing system stores and comprehensively processes the motion state and current collecting state information of the current collector and the motion image so as to output state data of the current collector. The data storing and processing system in the monitoring equipment acquires the motion state and current collecting state information of the current collector and the motion image at the same time, so that the acquired data and the acquired image can be comprehensively processed, the image can verify the detected data, and factors of the current collector, such as the material, the structural design, the mounting specification and the like, can be optimized, namely efficient data support for the improvement on the current collector is provided.
Description
Technical field
The present invention relates to the magnetic suspension train technical field, particularly a kind of middle low speed magnetic suspension train pantagraph current collector condition monitoring device.
Background technology
In low speed magnetic suspension train mainly adopt three, four rails power supplies to contact to be flowed with the side formula; Promptly receiving trajectory (power rail) along being provided with near the track; The pantagraph current collector of train setting with receive the trajectory contacts side surfaces, receive trajectory that electric current is imported pantagraph current collector, be the purpose that train provides electric energy in real time to reach.
Pantagraph current collector and the good necessary condition that contacts to the normal safe operation of such magnetic suspension train that receives trajectory.Since external factor (such as receiving trajectory radius off-set joint, irregularity) or pantagraph current collector flowed boots irregular wear or pantagraph current collector before and after contact uneven; All cause pantagraph current collector easily and receive the trajectory loose contact; Cause then that gently power supply is unstable, heavy then cause major accident such as stoppage in transit.Therefore, to the motion state of pantagraph current collector with effectively monitored by stream mode after, can find in advance that leak prevents that accident from taking place, and status monitoring also helps to estimate and improve pantagraph current collector, to advance the security performance of pantagraph current collector.Therefore, the motion state of pantagraph current collector effectively being monitored is the important means of low speed magnetic suspension train safe operation in the guarantee.
Yet the pantagraph current collector that middle low speed magnetic suspension train adopted is a kind of new product, does not set up effective monitoring system at present, makes the concrete working condition of pantagraph current collector and performance boost all can't obtain reliable data support.
In view of this, how a kind of middle low speed magnetic suspension train pantagraph current collector condition monitoring device being provided, is those skilled in the art's technical issues that need to address.
Summary of the invention
For solving the problems of the technologies described above, the object of the invention is for providing a kind of middle low speed magnetic suspension train pantagraph current collector condition monitoring device.The motion state that this monitoring equipment can effectively be monitored pantagraph current collector with receive flow state information, thereby the data support is provided for the evaluation of pantagraph current collector and improvement.
For reaching above-mentioned purpose, the present invention provides a kind of middle low speed magnetic suspension train pantagraph current collector condition monitoring device, it is characterized in that, comprising:
Data acquisition system (DAS) is used for acquisition testing pantagraph current collector motion state and receives flow state information;
Image capturing system is used to gather the pantagraph current collector moving image;
The data storage processing system is used to store the pantagraph current collector motion state information of also integrated data processing acquisition system collection and receives flow state information, and the pantagraph current collector moving image of image capturing system collection, with output pantagraph current collector status data.
Preferably, said data acquisition system (DAS) and said image capturing system are sampled by same position pulse signal synchronous triggering.
Preferably, middle low speed magnetic suspension train is provided with the sleeper locating device that tests the speed, and said data acquisition system (DAS) and said image capturing system trigger sampling according to the test the speed pulse signal of locating device of sleeper.
Preferably, said data acquisition system (DAS) comprises the detecting element that detects the pantagraph current collector motion state and receive flow state information, and the data collecting card of the information of acquisition testing element testing; So image capturing system comprises the detection camera that detects the pantagraph current collector moving image, and the image pick-up card of the image of acquisition testing phase machine testing; The shutter of said data collecting card, said image pick-up card, said detection camera is sampled by same position pulse signal synchronous triggering.
Preferably, said monitoring equipment is supplied power by independent current source.
Preferably, the power lead that is connected with power supply of said detecting element, all make electromagnetic protection with the signal wire of data acquisition card connection and handle; Said data collecting card is through data interface card transmission pantagraph current collector motion state and receive the extremely said data storage processing of flow state information system; Also comprise the electromagnetic protection cabinet, said data collecting card and said data interface card all are arranged in the said electromagnetic protection cabinet.
Preferably, be provided with common mode in the filtering of monitoring equipment power supply and absorb circuit, and introduce the reversal connection diode between power positive cathode, seal in to prevent high-frequency current.
Preferably, said detecting element comprises:
Be installed on the holder of pantagraph current collector contact boots and be used to detect the accelerometer of pantagraph current collector transverse vibration;
Detect the current transformer and the voltage transformer (VT) of pantagraph current collector supply voltage and supply current respectively;
Be installed between pantagraph current collector contact boots holder and the contact boots and be used to the pressure transducer that detects pantagraph current collector and receive pressure between the trajectory;
Detect the temperature sensor of contact boots temperature.
Preferably, said detecting element is all installed through the insulating mounting seat.
Preferably, be provided with three rank IIR wave digital lowpass filters in the said data storage processing system, said data storage processing system through this wave filter to the pantagraph current collector motion state that receives with receive flow state information to carry out Filtering Processing.
Preferably, said data storage processing system adopt wavelet function to the pantagraph current collector motion state with receive flow state information to carry out data analysis.
Preferably; Said image capturing system is gathered the video image of pantagraph current collector; The pantagraph current collector motion state of said data storage processing systematic analysis ad-hoc location is when receiving flow state information; Extract the video image corresponding simultaneously, video image and the pantagraph current collector motion state that said data storage processing system will be corresponding with this ad-hoc location and receive flow state information to compare analysis with this ad-hoc location.
Data storage processing system in the pantagraph current collector condition monitoring device provided by the invention obtains the motion state and the moving image that receives flow state information and pantagraph current collector of pantagraph current collector simultaneously; Thereby can handle data of gathering and the image synthesis that obtains; Image can be verified the data that detect; And the state of the pantagraph current collector that reflects according to image data can be found out on image intuitively; Be convenient to the technician and understand, and then can be optimized factors such as the selection of pantagraph current collector, structural design, installation specifications, i.e. improvement to pantagraph current collector provides data support effectively.
Description of drawings
Fig. 1 is arranged at the structural representation of a kind of embodiment on the pantagraph current collector for data acquisition system (DAS) in the monitoring equipment provided by the present invention;
Fig. 2 is arranged at the structural representation of a kind of embodiment on the pantagraph current collector for image capturing system in the monitoring equipment provided by the present invention;
Fig. 3 is the installation side view of image capturing system among Fig. 2;
Fig. 4 is the test the speed structural representation of locating device of sleeper.
Among Fig. 1-4:
1 electricity connects flexible cord; 2 contact boots holders; 3 contact boots; 4 pressure transducers; 5 accelerometers; 6 temperature sensors; 7 swing-bar mechanisms; 8 spring drag link mechanisms; 9 insulator foots; 10 porcelain vases; 11 pantagraph current collector mounting seat; 12 temperature sensor lines; 13 add the table line; 14 pressure transducer lines; 15 cabinets; The 15a data interface card; The 15b data collecting card; 16 voltage table lines; 17 voltage tables; 18 reometer lines; 19 reometers; 20 cables; 21 receive trajectory; 22 install trailing arm; 23 detection camera; 24 image pick-up cards; 25 image interface cards; 31 install and fix seat; 32 near switch; 33 locating interfaces that test the speed; 34 mounting rails; 35 locating devices that test the speed.
Embodiment
Core of the present invention is for providing a kind of middle low speed magnetic suspension train pantagraph current collector condition monitoring device.The motion state that this monitoring equipment can effectively be monitored pantagraph current collector with receive flow state information, thereby the data support is provided for the evaluation of pantagraph current collector and improvement.
In order to make those skilled in the art understand technical scheme of the present invention better, the present invention is done further detailed description below in conjunction with accompanying drawing and specific embodiment.
Please refer to Fig. 1, Fig. 1 is arranged at the structural representation of a kind of embodiment on the pantagraph current collector for data acquisition system (DAS) in the monitoring equipment provided by the present invention; Fig. 2 is the structural representation that image capturing system is arranged at a kind of embodiment on the pantagraph current collector in the monitoring equipment provided by the present invention, and wherein pantagraph current collector is the vertical view of pantagraph current collector among Fig. 1.
The pantagraph current collector of middle low speed magnetic suspension train comprises that electricity connects flexible cord 1, contact boots holder 2, contact boots 3, swing-bar mechanism 7, insulator foot 9, spring drag link mechanism 8, porcelain vase 10 and cable 20 and forms; Pantagraph current collector generally is installed on the train bogie through pantagraph current collector mounting seat 11; When contacting boots 3 and contacted by trajectory 21; As shown in Figure 2; Receive the high-tension electricity of trajectory 21 to transfer to magnetic suspension train through cable 20, promptly pantagraph current collector can be train power supply with good contact that receives trajectory 21, and concrete principle of work can be with reference to prior art.
Among this embodiment, be provided with the image capturing system of data acquisition system (DAS), collection pantagraph current collector moving image, and the data storage processing system, data acquisition system (DAS) comprises the detecting element that detects the pantagraph current collector motion state and receive flow state information.Detecting element comprises sensor groups, mainly contains: pressure transducer 4, accelerometer 5, temperature sensor 6, voltage transformer (VT) summation current transformer, voltage transformer (VT) summation current transformer are respectively the reometer 19 and voltage table 17 shown in Fig. 1.
As shown in Figure 1; Pressure transducer 4 is installed between contact boots holder 2 and the contact boots 3; When contacting boots 3 and receiving trajectory 21 to do the time spent, contact boots 3 and receive the contact force between the trajectory 21 thereby pressure transducer 4 produces the distortion measurement, and this pressure signal is transferred to the data storage processing system.Pressure can characterize pantagraph current collector and the contact condition that receives trajectory 21, and therefore, pressure signal can reflect pantagraph current collector and the power supply reliability that receives trajectory 21 under the different operating modes.
Accelerometer 5 is installed on the contact boots holder 2, is used for detecting the transverse vibration of motion process contact boots 3, and transverse vibration can reflect the dynamic following ability of smooth-going degree of the side direction that receives trajectory 21 and pantagraph current collector.
Temperature sensor 6 also is installed on the contact boots holder 2; Be used for detecting the temperature of motion process contact boots 3, the function of pantagraph current collector mainly relies on contact boots 3 and receives contacting of trajectory 21, in contact process; The temperature of contact boots 3 can raise; And temperature is relevant with through-current capability, so the temperature of the contact boots 3 that detect can reflect the through-current capability that contacts boots 3, can reference be provided for the optimization of material type selecting of contact boots 3.
Voltage table 17 and reometer 19 are installed in cable 20 places of pantagraph current collector mounting seat 11 tops; Be respectively applied for and detect supply voltage and supply current; Supply voltage and supply current can directly reflect pantagraph current collector in the whole service process, the through-flow state of pantagraph current collector under the different operating modes.
What more than enumerate only is a part of status information parameter of pantagraph current collector; In order better and all sidedly to grasp the duty of pantagraph current collector; Can also detect other informations parameter, but the above-mentioned parameter of enumerating is a pantagraph current collector principal character parameter, in fact can have satisfied the demand of monitoring.The mounting means of detecting element and installation site also are not limited to this; When those skilled in the art use such detecting element; Guarantee that it can obtain required parameter and get final product; Mounting means in the present embodiment can make checkout equipment comparatively compact with the sensor module of taking, and is easy to dismounting, and is better portable.
The status information that above-mentioned detecting element detects need transfer to the data storage processing system, so that handle, the data storage processing system comprises storage unit and processing unit, is used to store the data and the image of input and analyze.Among this embodiment, all adopt circuit to connect, and be provided with data collecting card 15b and data interface card 15a.Data collecting card 15b is used for the signal of each sensor acquisition of acquisition testing element, and with the signal digitalized of sensor after data interface card 15a transfers to data storage processing system (can be usually adopt host computer).As shown in Figure 1, various kinds of sensors all is connected to data collecting card 15b through line, can expect; Being not limited to circuit here and connecting, can be wireless connections also, consider production cost and with the distance of data storage processing system; It is more suitable to connect through circuit, and pantagraph current collector with receive under the particular surroundings of trajectory 21, electromagnetic interference (EMI) is comparatively serious; Such as pantagraph current collector electromagnetic interference (EMI) of discharge generation when receiving trajectory 21 loose contacts is instantaneous high energy pulse signal; Can produce bigger electromagnetic interference (EMI) to power supply and signal, at this moment, it is also more reliable that circuit transmits signal.
As implied above; Above-mentioned monitoring equipment places electromagnetic interference (EMI) comparatively under the serious environmental, in order further to improve the quality of signals collecting, guarantees the correctness of data analysis; Can carry out electromagnetic protection to the connection line between each sensor and the data collecting card 15b handles; Simultaneously can also each sensor all be installed on the relevant position through the insulating mounting seat,, improve the quality of signal transmission to reduce electromagnetic interference (EMI).Further, can data collecting card 15b and data interface card 15a be placed in the electromagnetic protection cabinet 15, guarantee that the signal that transfers to data collecting card 15b can transfer to the data storage processing system under the situation of no electromagnetic interference (EMI).As shown in Figure 1; Pressure transducer 4 after the insulation processing, accelerometer 5, temperature sensor 6, voltage table 17, reometer 19 are connected to data collecting card 15b through pressure transducer 4 lines, accelerometer 5 lines, temperature sensor line 12, voltage table line 16, reometer line 18 respectively; Wherein, pressure transducer line 14, accelerometer line 13, temperature sensor line 12, voltage table line 16, reometer line 18 have all been done the electromagnetic protection processing.
To the foregoing description; In order further to overcome the influence of electromagnetic interference (EMI); The data storage processing system can be provided with three rank IIR wave digital lowpass filters; Then the data storage processing system can carry out filtering to the signal that receives through three rank IIR wave digital lowpass filters in the pantagraph current collector motion state of storing the detecting element detection with before receiving the flow state information signal, thereby effectively prevents the interference of complex electromagnetic environment to the signal transmission.In addition, also can be in power filter, common mode is set absorb circuit, and introduce the reversal connection diode between power positive cathode, seal in to prevent high-frequency current, thereby discharge is to the high frequency interference of power supply when eliminating loose contact.In addition, can also make whole pantagraph current collector condition monitoring device adopt the independent current source power supply, independent current source is set improve under high pressure, big current work environment the security of monitoring equipment and reliability.
Image capturing system in the monitoring equipment can continue with reference to figure 2 and combines Fig. 3 to understand, and Fig. 3 is the installation side view of image capturing system among Fig. 2.
Among this embodiment, image capturing system mainly comprises detection camera 23, camera installation trailing arm 22, image pick-up card 24 and image interface card 25.Camera is installed the bogie of the end connection magnetic suspension train of trailing arm 22; One end installation and measuring camera 23; Being installed on this position can make the visual field of detection camera 23 cover whole pantagraph current collector; Then in train whole service process, the pantagraph current collector moving image all can effectively be obtained, and can analyze the running status of each parts of pantagraph current collector comparatively intuitively according to the pantagraph current collector moving image of gathering.Similar with data acquisition system (DAS), after handling, the picture signal that image pick-up card 24 obtains detection camera 23 transfers to image interface card 25, and image interface card 25 exports picture signal to the data storage processing system again.Equally, image capturing system can adopt other signal transmission forms, also can adopt video camera to obtain the video image of pantagraph current collector.
Can know by foregoing; The data storage processing system obtains the motion state of pantagraph current collector simultaneously and receives flow state information; And the moving image of pantagraph current collector; Thereby can handle data of gathering and the image synthesis that obtains, can analyze the pantagraph current collector motion state and receive stream mode through the data of gathering.Though can obtain the pantagraph current collector motion state and receive flow state information according to independent data acquisition system (DAS); But when the signal transmission exists error or other external factors to disturb; Deviation possibly appear in pantagraph current collector real work state analysis; And the image of image capturing system collection can be verified the data that the data acquisition system detects; Be the data storage processing system when the data image of overall treatment image capturing system and data acquisition system (DAS), can obtain the real work state of pantagraph current collector accurately; And the state of the pantagraph current collector that is reflected by image data can be found out on image greatly intuitively, is convenient to the technician and understands.According to above-mentioned analysis result, can realize that the factor such as selection, structural design, installation specification to pantagraph current collector is optimized, the improvement that is pantagraph current collector provides data support effectively.
In addition, the pantagraph current collector condition monitoring device in the foregoing description also possesses following advantages: simple in structure, volume is little, in light weight, and its operation, maintenance, easy accessibility, and have stronger electromagnetic protection function; Can continuous detecting and show the pantagraph current collector power supply state and with the contact condition that receives trajectory 21.After the data storage processing system of monitoring equipment receives the signal of data acquisition system (DAS) and image capturing system output, can be automatically with signal storage such as the electric current of reception, voltage, temperature, pressure, images, and can possess the automatic hold function of the data of outage; When such data of analysis-by-synthesis and image, oscillogram, route curve figure that can each test item of real-time rendering, and can carry out processing such as convergent-divergent, translation, selections to waveform, so that the technician checks and understands.The data storage processing system can also possess functions such as overload alarm, operation total kilometrage accumulative total and demonstration, mileage error correction
The data storage processing system needs the data-signal and the picture signal of comparative analysis same position when the image that the data and the image capturing system of the collection of integrated data processing acquisition system are gathered.Data collecting card 15b and image pick-up card 24 all can trigger sampling by the same position pulse signal, thereby guarantee to gather the data and the image of same position, so that comparative analysis.Data collecting card 15b gathers the signal of a plurality of sensors, so on the data collecting card 15b a plurality of acquisition channels can be set, each passage triggers sampling by the same position pulse signal.The shutter of detection camera 23 also can trigger sampling by the same position pulse signal with image pick-up card 24 in the image capturing system, thereby guarantees that image capturing system and data acquisition system (DAS) realize synchro control by the same position pulse signal.
The same position pulse signal locating device that can test the speed through the sleeper that generally can be provided with on the train track is realized.As shown in Figure 4, Fig. 4 is the test the speed structural representation of locating device 35 of sleeper.This locating device 35 that tests the speed comprise install and fix the seat 31; Install and fix on the seat 31 and be fixed with mounting rail 34; All be installed on the mounting rail 34 near the switch 32 and the locating interface 33 that tests the speed; During work, count through the current train speed of adjacent sleeper Time Calculation through responding to sleepers and pass through near switch 32, and through fast locating interface 33 output speed position pulse signals.At this moment, this position pulse signal can control data capture card 15b and image pick-up card 24 carry out synchronized sampling.
Further; Because pantagraph current collector time lasting with receiving to contact between trajectory phenomenon such as bad is shorter; The routine data analytical approach is difficult to effectively extract data characteristics, and for this reason, the data storage analytic system is when being for data processing; Can adopt wavelet function to carry out data analysis, so that extract the correlated phenomena characteristic.When image capturing system adopts video camera to obtain the video image of pantagraph current collector; Data storage processing systematic analysis data acquisition system (DAS) is when the data that certain ad-hoc location is gathered; Can effectively locate the position coordinates of these data; Extract the video image corresponding simultaneously, carry out phenomenon and confirm and the further analysis of causes, improved efficiency of data analysis with this ad-hoc location.
In the foregoing description, the storage unit in the data storage processing system can be compatible with computer interface, thereby can off-line data importing to computing machine be made further analyzing and processing, supports for the simulation calculation of improving the pantagraph current collector design provides data.
More than to provided by the present invention a kind of in low speed magnetic suspension train pantagraph current collector condition monitoring device carried out detailed introduction.Used concrete example among this paper principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (12)
1. low speed magnetic suspension train pantagraph current collector condition monitoring device in a kind is characterized in that, comprising:
Data acquisition system (DAS) is used for acquisition testing pantagraph current collector motion state and receives flow state information;
Image capturing system is used to gather the pantagraph current collector moving image;
The data storage processing system is used to store the pantagraph current collector motion state information of also integrated data processing acquisition system collection and receives flow state information, and the pantagraph current collector moving image of image capturing system collection, with output pantagraph current collector status data.
2. low speed magnetic suspension train pantagraph current collector condition monitoring device in according to claim 1 is characterized in that said data acquisition system (DAS) and said image capturing system are sampled by same position pulse signal synchronous triggering.
3. low speed magnetic suspension train pantagraph current collector condition monitoring device in according to claim 2; It is characterized in that; In low speed magnetic suspension train be provided with the sleeper locating device that tests the speed, said data acquisition system (DAS) and said image capturing system trigger sampling according to the test the speed pulse signal of locating device of sleeper.
4. according to claim 2 or 3 described middle low speed magnetic suspension train pantagraph current collector condition monitoring devices; It is characterized in that; Said data acquisition system (DAS) comprises the detecting element that detects the pantagraph current collector motion state and receive flow state information, and the data collecting card of the information of acquisition testing element testing; So image capturing system comprises the detection camera that detects the pantagraph current collector moving image, and the image pick-up card of the image of acquisition testing phase machine testing; The shutter of said data collecting card, said image pick-up card, said detection camera is sampled by same position pulse signal synchronous triggering.
5. according to claim 2 or 3 described middle low speed magnetic suspension train pantagraph current collector condition monitoring devices, it is characterized in that said monitoring equipment is supplied power by independent current source.
6. low speed magnetic suspension train pantagraph current collector condition monitoring device in according to claim 5 is characterized in that, the power lead that said detecting element is connected with power supply, and the signal wire of data acquisition card connection all do the electromagnetic protection processing; Said data collecting card is through data interface card transmission pantagraph current collector motion state and receive the extremely said data storage processing of flow state information system; Also comprise the electromagnetic protection cabinet, said data collecting card and said data interface card all are arranged in the said electromagnetic protection cabinet.
7. low speed magnetic suspension train pantagraph current collector condition monitoring device in according to claim 5 is characterized in that, is provided with common mode in the filtering of monitoring equipment power supply and absorbs circuit, and introduce the reversal connection diode between power positive cathode, seals in to prevent high-frequency current.
8. according to each described middle low speed magnetic suspension train pantagraph current collector condition monitoring device of claim 1-3, it is characterized in that said detecting element comprises:
Be installed on the holder of pantagraph current collector contact boots and be used to detect the accelerometer of pantagraph current collector transverse vibration;
Detect the current transformer and the voltage transformer (VT) of pantagraph current collector supply voltage and supply current respectively;
Be installed between pantagraph current collector contact boots holder and the contact boots and be used to the pressure transducer that detects pantagraph current collector and receive pressure between the trajectory;
Detect the temperature sensor of contact boots temperature.
9. according to each described middle low speed magnetic suspension train pantagraph current collector condition monitoring device of claim 1-3, it is characterized in that said detecting element is all installed through the insulating mounting seat.
10. according to each described middle low speed magnetic suspension train pantagraph current collector condition monitoring device of claim 1-3; It is characterized in that; Be provided with three rank IIR wave digital lowpass filters in the said data storage processing system, said data storage processing system through this wave filter to the pantagraph current collector motion state that receives with receive flow state information to carry out Filtering Processing.
11. according to claim 1-3 each described in low speed magnetic suspension train pantagraph current collector condition monitoring device, it is characterized in that, said data storage processing system adopt wavelet function to the pantagraph current collector motion state with receive flow state information to carry out data analysis.
12. low speed magnetic suspension train pantagraph current collector condition monitoring device in according to claim 11; It is characterized in that; Said image capturing system is gathered the video image of pantagraph current collector; The pantagraph current collector motion state of said data storage processing systematic analysis ad-hoc location is extracted the video image corresponding with this ad-hoc location when receiving flow state information simultaneously, video image and the pantagraph current collector motion state that said data storage processing system will be corresponding with this ad-hoc location and receive flow state information to compare analysis.
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| CN102818960A (en) * | 2012-08-31 | 2012-12-12 | 南车株洲电力机车有限公司 | Device for detecting working state of current collector |
| CN102830302A (en) * | 2012-08-08 | 2012-12-19 | 南车株洲电力机车有限公司 | Monitoring system and method of current collector |
| CN106515461A (en) * | 2016-12-29 | 2017-03-22 | 中铁二院工程集团有限责任公司 | Collector shoe of magnetic suspension train and electromagnetic shielding method of magnetic suspension train |
| CN108177530A (en) * | 2018-02-28 | 2018-06-19 | 广州地铁集团有限公司 | A kind of boots rail relationship comprehensive detection device and method |
| CN108318172A (en) * | 2018-03-28 | 2018-07-24 | 上海磁浮交通发展有限公司 | Pantagraph current collector contact force device for testing and analyzing and its method for testing and analyzing |
| CN108645451A (en) * | 2018-07-12 | 2018-10-12 | 中铁磁浮科技（成都）有限公司 | Middle speed magnetic suspension train on-line condition monitoring system |
| CN109269544A (en) * | 2018-09-27 | 2019-01-25 | 中国人民解放军国防科技大学 | Inspection system for suspension sensor of medium-low speed magnetic suspension vehicle |
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| CN110518777A (en) * | 2019-09-25 | 2019-11-29 | 中车株洲电机有限公司 | The bilateral dynamic primary formula linear motor of one kind and its air gap stability control mechanism |
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| CN109318938A (en) * | 2018-08-24 | 2019-02-12 | 同济大学 | A kind of magnetic-levitation train tests the speed range-measurement system |
| CN109318938B (en) * | 2018-08-24 | 2020-02-14 | 同济大学 | Speed and distance measuring system for maglev train |
| CN109269544B (en) * | 2018-09-27 | 2021-01-29 | 中国人民解放军国防科技大学 | Inspection system for suspension sensor of medium-low speed magnetic suspension vehicle |
| CN109269544A (en) * | 2018-09-27 | 2019-01-25 | 中国人民解放军国防科技大学 | Inspection system for suspension sensor of medium-low speed magnetic suspension vehicle |
| CN110518777B (en) * | 2019-09-25 | 2021-10-29 | 中车株洲电机有限公司 | Double-side-acting primary linear motor and air gap stability control mechanism thereof |
| CN110518777A (en) * | 2019-09-25 | 2019-11-29 | 中车株洲电机有限公司 | The bilateral dynamic primary formula linear motor of one kind and its air gap stability control mechanism |
| CN111942427A (en) * | 2020-08-19 | 2020-11-17 | 湖南凌翔磁浮科技有限责任公司 | Dynamic detection device and method for magnetic suspension track contact rail |
| CN111942428A (en) * | 2020-08-19 | 2020-11-17 | 湖南凌翔磁浮科技有限责任公司 | Magnetic suspension track detection device |
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| CN111942427B (en) * | 2020-08-19 | 2021-10-01 | 湖南凌翔磁浮科技有限责任公司 | Dynamic detection device and method for magnetic suspension track contact rail |
| CN113405714A (en) * | 2021-07-01 | 2021-09-17 | 成都慧虹宏创科技有限公司 | Train current collector pressure detection method based on strain measurement |
| CN113405714B (en) * | 2021-07-01 | 2021-12-31 | 成都慧虹宏创科技有限公司 | Train current collector pressure detection method based on strain measurement |
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