CN204495300U - Pantograph monitoring running state device - Google Patents
Pantograph monitoring running state device Download PDFInfo
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- CN204495300U CN204495300U CN201420868441.9U CN201420868441U CN204495300U CN 204495300 U CN204495300 U CN 204495300U CN 201420868441 U CN201420868441 U CN 201420868441U CN 204495300 U CN204495300 U CN 204495300U
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Abstract
The disclosure is directed to a kind of pantograph monitoring running state device, comprise: pantograph detection trigger module and three-dimensional information acquisition module, wherein, pantograph detects on trigger module and track by being provided with interval between the top of train, pantograph detected for judging whether in predetermined detection area, predetermined detection area is positioned on the route via of pantograph; The pickup area of three-dimensional information acquisition module all/part covers predetermined detection area, for detect when pantograph trigger module pantograph detected time, image data acquisition is carried out to pantograph, obtains the image data information of pantograph.This device can in time, easily and quickly to pantograph dimension information as pantograph pan thickness detects, thus guarantee that pantograph is in normal operating condition, drastically increase the detection efficiency of pantograph, avoid the generation causing accident between pantograph due to bow failure.
Description
Technical field
The disclosure relates to vehicle monitoring technical field, particularly relates to a kind of pantograph monitoring running state device.
Background technology
Pantograph is that one is arranged on electric traction machine roof, and be usually provided with at pantograph top can with the slide plate of contact net sliding contact, in order to obtain electric energy from contact net, for hauling engine provides power.In order to ensure the traction current that pantograph can provide stable, on the one hand, require that the length of slide plate can ensure still can contact with osculatory when nosing, on the other hand, also need the osculatory close contact by the slide plate at pantograph top and contact net, usually bottom pantograph, be provided with the elastic devices such as spring, slide plate is withstood on osculatory, and there is therebetween certain contact.
But in actual applications, pantograph is that random overall height speed is advanced, the slide plate slides at osculatory relative pantograph top always in locomotive traveling process, in the relative sliding process of osculatory and slide plate, friction can be produced to slide plate, the conductive material on slide plate is worn away, once abrasion transition, contact between slide plate and osculatory is not enough, produces gap, and then occurs electric spark, may produce accident between pantograph, even may there is locomotive failure in serious.
In order to avoid the generation of accident between pantograph, constantly pantograph is monitored in real time, such as, once the slide plate abrasion transition of pantograph, then need to change pantograph pan in time.Therefore, how the accurate size to pantograph detects, and is current problem demanding prompt solution.
Utility model content
For overcoming Problems existing in correlation technique, the disclosure provides a kind of pantograph monitoring running state device.
A kind of pantograph monitoring running state device, comprising: pantograph detection trigger module and three-dimensional information acquisition module, wherein,
By being provided with interval between the top of train on described pantograph detection trigger module and track, pantograph detected for judging whether in predetermined detection area, described predetermined detection area all/part covers the route via of described pantograph;
The pickup area of described three-dimensional information acquisition module all/part covers described predetermined detection area, when described pantograph detection trigger module detects described pantograph, trigger described three-dimensional information acquisition module and image data acquisition is carried out to described pantograph, and obtain the image data information of described pantograph.
Alternatively, described three-dimensional information acquisition module comprises: at least two image data acquiring devices, wherein,
At least two image data acquiring devices all detect trigger module with described pantograph and are electrically connected;
The image acquisition region of image data acquiring device described in any one all/part covers described predetermined detection area, and described in each, image data acquiring device synchronously carries out image data acquiring from diverse location to described pantograph.
Alternatively, described three-dimensional information acquisition module also comprises the structured light light source for generation of structured light, described structured light all/part covers described predetermined detection area.
Alternatively, described predetermined detection area covers the route via of described pantograph;
Described structured light light source is irradiated and is formed structured light on described pantograph side;
At least two described image data acquiring devices obtain the image data information of the side that described structured light irradiates described pantograph simultaneously from diverse location.
Alternatively, described structured light light source is grating light source, and the striped that formed of the grating of described grating light source and the bearing of trend of described pantograph perpendicular.
Alternatively, the position of at least two described image data acquiring devices is symmetrical arranged centered by the optical axis of described structured light light source, and the line of the optical center point of at least two described image collecting devices is parallel with the bearing of trend of described pantograph.
Alternatively, angle is provided with between the optical axis of image data acquiring device described in each.
Alternatively, described pantograph detection trigger module comprises:
For projecting the induced signal projecting unit of induced signal in described predetermined detection area;
For obtaining the induction acquiring unit of described induced signal;
For judging whether described induction information occurs that the feature be blocked exceedes the probe unit of threshold value; And,
When described induction information occurs that the feature be blocked exceedes threshold value, for triggering the trigger element of described three-dimensional information acquisition module;
Described induced signal projecting unit, sensing unit, described acquiring unit, described probe unit and described trigger element are electrically connected successively.
Alternatively, described induction acquiring unit is visual pattern pick-up unit, infrared image pick-up unit, at least one in ultraviolet image pick-up unit and Laser Detecting Set.
Alternatively, described pantograph monitoring running state device also comprises: demarcate information-storing device and dispensing device;
The demarcation information of at least two image data acquiring devices described in storing in described demarcation information-storing device;
All image data acquiring devices in described dispensing device and described demarcation information-storing device, described three-dimensional information acquisition module are electrically connected,
The image data information that described dispensing device collects at least two image data acquiring devices described in obtaining, the demarcation information of at least two image data acquiring devices described in obtaining from described demarcation information-storing device, and described demarcation information and image data information are sent to backstage image server, so that the dimension information of described backstage image server pantograph according to described image data information and described demarcation information extraction.
The technical scheme that embodiment of the present disclosure provides can comprise following beneficial effect:
This device that disclosure embodiment provides, when train operation, when detecting that pantograph enters into predetermined detection area with train, carry out image data acquisition with regard to three-dimensional information acquisition module to pantograph, such backstage image server just can extract the dimension information of pantograph according to the image data information collected.
Therefore, on the way, route can be provided with one or more detecting position to install and be equipped with this pantograph monitoring running state device, in train travelling process, all can detect the dimension information of pantograph in time, easily and quickly, thus guarantee that pantograph is in normal operating condition, drastically increase the detection efficiency of pantograph, avoid the generation causing accident between pantograph due to bow failure.
Should be understood that, it is only exemplary and explanatory that above general description and details hereinafter describe, and can not limit the disclosure.
Accompanying drawing explanation
Accompanying drawing to be herein merged in instructions and to form the part of this instructions, shows embodiment according to the invention, and is used from instructions one and explains principle of the present invention.
The structural representation of a kind of pantograph monitoring running state device that Fig. 1 provides for disclosure embodiment.
Fig. 2 overlooks scene schematic diagram for the one that the embodiment of the present invention provides.
Fig. 3 is the detected image of left image collecting device in Fig. 2.
Fig. 4 is the detected image of right image collecting device in Fig. 2.
The structural representation of the pantograph detection trigger module that Fig. 5 provides for disclosure embodiment.
The structural representation of the another kind of pantograph monitoring running state device that Fig. 6 provides for disclosure embodiment.
A kind of curve schematic diagram that Fig. 7 provides for disclosure embodiment.
Embodiment
Here will be described exemplary embodiment in detail, its sample table shows in the accompanying drawings.When description below relates to accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawing represents same or analogous key element.Embodiment described in following exemplary embodiment does not represent all embodiments consistent with the present invention.On the contrary, they only with as in appended claims describe in detail, the example of apparatus and method that aspects more of the present invention are consistent.
The structural representation of a kind of pantograph monitoring running state device that Fig. 1 provides for disclosure embodiment.
As shown in Figure 1, this device can comprise: pantograph detection trigger module 1 and three-dimensional information acquisition module 2, wherein,
Pantograph detection trigger module 1 is arranged on portal frame, portal structure or the bicycle shed that the top of the track that train passes through or side overlap in advance, and pantograph detects on trigger module 1 and track by being provided with interval between the top of train, pantograph is detected, on the route via of all or part of covering pantograph in predetermined detection area for judging whether in predetermined detection area.
In pantograph operational process, the slide plate slides at osculatory relative pantograph top always, in the relative sliding process of osculatory and slide plate, friction can be produced to slide plate, the conductive material on slide plate is worn away, once abrasion transition, contact between slide plate and osculatory is not enough, produces gap, and then occurs electric spark, may produce accident between pantograph, even may there is locomotive failure in serious.In addition, the main part of pantograph and be pantograph pan than the part being easier to detect, therefore in the present embodiment, above-mentioned predetermined detection area need cover the approach route of pantograph pan, certainly, under technology general knowledge known by those skilled in the art, in other real-time modes, predetermined detection area can also be or comprise the other parts of pantograph.
As shown in Figure 2, the one provided for disclosure embodiment overlooks scene schematic diagram, Fig. 2 comprises: train 100, pantograph pan 200, pantograph detection trigger module 1 and three-dimensional information acquisition module 2, wherein, pantograph pan 200 is arranged on the top of train 100, and move with train 100, pantograph detects on trigger module 1 and track by being provided with interval between the top of train 100.
Three-dimensional information acquisition module 2 for carrying out image data acquisition to pantograph, so the predetermined detection area of pantograph detection trigger module 1 all/part covers the pickup area of three-dimensional information acquisition module 2.Like this, once pantograph pan 200 runs to the predetermined detection area of pantograph detection trigger module 1, so pantograph detection trigger module 1 just can judge whether pantograph to be detected.
This device that disclosure embodiment provides, when train operation, when detecting that pantograph enters into predetermined detection area with train, carry out image data acquisition with regard to three-dimensional information acquisition module to pantograph, such backstage image server just can extract the dimension information of pantograph according to the image data information collected.
The dimension information of above-mentioned pantograph can comprise the thickness information of pantograph pan, pantograph centerline deviation metrical information, pantograph whole appearance information, and by above-mentioned information by graphical analysis measuring technique the abrasion of pantograph pan information that converts out, pantograph working position contact information and pantograph foreign matter and important spare part status information.
Therefore, on the way, route can be provided with one or more detecting position to install and be equipped with this pantograph monitoring running state device, in train travelling process, all can detect the dimension information of pantograph in time, easily and quickly, thus guarantee that pantograph is in normal operating condition, drastically increase the detection efficiency of pantograph, avoid the generation causing accident between pantograph due to bow failure.
As shown in Figure 2, three-dimensional information acquisition module 2 comprises: at least two image data acquiring devices 22, image data acquiring device 22 is for two in fig. 2, two image data acquiring devices 22 are arranged on the same side of pantograph detection trigger module 1, and at least two image data acquiring devices 22 all detect trigger module 1 with pantograph and are electrically connected, the image acquisition region of any one image data acquiring device 22 all covers predetermined detection area, and each image data acquiring device 22 synchronously carries out image data acquisition from diverse location to pantograph pan 200.
This device that disclosure embodiment provides is when applying, pantograph pan continues mobile with train, in three-dimensional information acquisition module the installation site of at least two image data acquiring devices at same position and position fix, so, if the moment difference that two image data acquiring devices carry out gathering, so in two moment gathering image, the distance of pantograph pan distance three-dimensional information acquisition module is also different, correspondingly, in the image collected, the ratio of pantograph pan is also different, cause, cannot the follow-up image to collecting to carry out image processing step loaded down with trivial details, the dimension information of pantograph even cannot be obtained by image procossing.
For this reason, in the disclosed embodiments, need to control at least two image data acquiring device synchronous acquisitions in three-dimensional information acquisition module, like this for each two image data acquiring devices, when carrying out image acquisition, identical owing to gathering the moment, so the distance of pantograph pan distance three-dimensional information acquisition module is identical, correspondingly, in the image collected, the ratio of pantograph pan is also identical, and then in successive image processing procedure, can obtain the dimension information of pantograph quickly and easily.
In addition, as shown in Figure 2, three-dimensional information acquisition module 2 can also comprise: structured light light source 21, structured light light source 21 is irradiated and is formed multiple striped on pantograph pan 200 side, and at least two image data acquiring devices 22 can obtain the image data information of the side that structured light irradiates pantograph pan 200 simultaneously from diverse location.Structured light light source 21 and pantograph detect trigger module 1 and are electrically connected, like this, once pantograph detection trigger module 1 detects pantograph (namely occurring in induction information that the feature be blocked exceedes threshold value) in predetermined detection area, then pantograph detection trigger module 1 generates trigger pip, and trigger pip is sent to respectively structured light light source 21 and image data acquiring device 22, start work to make structured light light source 21 and image data acquiring device 22.
Here structured light light source can be at least one of line source, array light source, array light source and grid light source, in the present embodiment, structured light light source 21 is preferably linear array (grating) light source, and this structured light light source 21 can be irradiated and be formed multiple striped on the slide plate side of pantograph.In the disclosed embodiments, the striped that formed of the grating of grating light source and the bearing of trend of pantograph pan 200 perpendicular.
On the portal frame that structured light light source 21 can arrange train top or portal structure, and and be provided with interval between the top of train 100, structured light light source 21 usually and pantograph pan 200 not on sustained height, such as, the height of structured light light source 21 higher than the height of pantograph pan 200, can make structured light light source 21 preset inclination angle with one and irradiates pantograph pan 200 like this.
In the disclosed embodiments, as shown in Figure 2, structured light light source 21 can be arranged in orbit by the center position of the over top of train.
As shown in Figure 2, at least two image data acquiring devices 22 and structured light light source 21 are all arranged on the same side of pantograph detection trigger module 1, and structured light light source 21 is between at least two image data acquiring devices 22, at least two image data acquiring devices 22 are positioned at the both sides of the optical axis of structured light light source 21.In addition, the position of at least two image data acquiring devices 22 is symmetrical arranged centered by the optical axis of structured light light source 21, and the line of the optical center point of at least two image data acquiring devices 22 parallels with the bearing of trend of pantograph pan 200, and be provided with angle between the optical axis of each image data acquiring device 22.
For the image data acquiring device 22 of two in Fig. 2, depression angle from Fig. 2, left image data acquiring device will can be called on the left of the optical axis being positioned at structured light light source 21, and right image data acquiring device will be called on the right side of the optical axis being positioned at structured light light source 21, so see Fig. 3 and Fig. 4, be respectively the detected image that left image data acquiring device and right image data acquiring device collect.Have row's striped in Fig. 3 and Fig. 4 respectively, these stripeds are exactly the image that structured light light source 21 is radiated at the structured light on pantograph pan 200.
In the disclosed embodiments, image data acquiring device 22 can be area array cameras, also other known by line-scan digital camera basic area technician can collect camera or the video camera of video image; In addition, above-mentioned image data acquiring device can also be non-visible light image collecting device.In the preferred case, the model of at least two image data acquiring devices 22 needs identical, thus can make the error-reduction that image data acquiring device synchronously triggers.
In the disclosure one embodiment, as shown in Figure 5, pantograph detection trigger module 1 can comprise: induced signal projecting unit 11, induction acquiring unit 12, probe unit 13 and trigger element 14, wherein,
Induced signal projecting unit 11, for projecting induced signal in predetermined detection area, in a particular application, induced signal projecting unit can be generating laser;
Induction acquiring unit 12, for obtaining induced signal;
Probe unit 13, for judging whether induction information occurs that the feature be blocked exceedes threshold value;
Trigger element 14, when the feature for occurring being blocked when induction information exceedes threshold value, triggers three-dimensional information acquisition module startup work;
And induced signal projecting unit, sensing unit, acquiring unit, probe unit and trigger element are electrically connected successively.
In the disclosed embodiments, induction acquiring unit can be visual pattern pick-up unit, infrared image pick-up unit, at least one in ultraviolet image pick-up unit and Laser Detecting Set.
In the disclosure one embodiment, as shown in Figure 6, this pantograph monitoring running state device can also comprise: dispensing device 3 and demarcation information-storing device 4.
Demarcate the demarcation information storing at least two image data acquiring devices 22 in information-storing device 4;
Dispensing device 3 is electrically connected with all image data acquiring devices 22 demarcated in information-storing device 4, three-dimensional information acquisition module 2;
The image data information that dispensing device 3 collects for obtaining at least two image data acquiring devices 22, from demarcating the demarcation information obtaining at least two image data acquiring devices 22 information-storing device 4, and demarcation information and image data information are sent to backstage image server 5, so that backstage image server 5 is according to image data information and the dimension information demarcating information extraction pantograph.
Below in conjunction with a specific embodiment, the pantograph monitoring running state device that the disclosure provides is described:
11), pantograph detection trigger module judges whether pantograph to be detected in predetermined detection area.
12), when pantograph being detected in predetermined detection area, pantograph detection trigger module generates trigger pip, and trigger message is sent to three-dimensional information acquisition module;
13) structured light light source, in three-dimensional information acquisition module and at least two image data acquiring devices are all according to start trigger signal work;
14), structured light light source is irradiated and is formed structured light on pantograph side;
15), at least two image data acquiring devices obtain the image data information of the side that structured light irradiates pantograph simultaneously from diverse location;
16), the view data that at least two image data acquiring devices collect is sent to backstage image server by dispensing device;
17), demarcation information also for obtaining the demarcation information of at least two image data acquiring devices from demarcation information-storing device, and is sent to backstage image server by transmitting apparatus;
18), backstage image server carries out feature point extraction, images match and 3-d recovery in conjunction with demarcation information to each image data information, structure pantograph three-dimensional dimension information model.
19), backstage image server according to pantograph three-dimensional dimension model, extract the dimension information of pantograph.
In other embodiment of the disclosure, backstage image server can also carry out stripe pattern coupling in conjunction with demarcation information to each raster image information, streak feature point extracts and 3-d recovery, obtain the smooth curve of two all stripeds of envelope, two end points according to the matching of all 3-d recovery results, the positional information between smooth curve forms the thickness information of pantograph.
When after the 3-D view being obtained each striped by 3-d recovery, by the end points of the same side, streaky upper and lower both sides carry out line, matching obtains two smooth curves, as shown in Figure 7, the smooth curve be positioned in figure above striped is 101, and the smooth curve be positioned at below striped is 102.
As can see from Figure 7, two smooth curves that matching obtains, due to two smooth curves 101, distance between 102 is the width of each striped, so, two smooth curves that matching obtains also can be regarded as the thickness curve of pantograph pan 200, the variation in thickness of pantograph pan 200 can be reflected from the distance change between these curves, so, in this step, can using the thickness information of the positional information between these two smooth curves as pantograph pan, it is to be noted, the dimension information of above-mentioned pantograph slider is including but not limited to pantograph pan thickness information.
Those skilled in the art, at consideration instructions and after putting into practice invention disclosed herein, will easily expect other embodiment of the present invention.The disclosure is intended to contain any modification of the present invention, purposes or adaptations, and these modification, purposes or adaptations are followed general principle of the present invention and comprised the undocumented common practise in the art of the disclosure or conventional techniques means.Instructions and embodiment are only regarded as exemplary, and true scope of the present invention and spirit are pointed out by claim below.
Should be understood that, the present invention is not limited to precision architecture described above and illustrated in the accompanying drawings, and can carry out various amendment and change not departing from its scope.Scope of the present invention is only limited by appended claim.
Claims (10)
1. a pantograph monitoring running state device, is characterized in that, comprising: pantograph detection trigger module and three-dimensional information acquisition module, wherein,
By being provided with interval between the top of train on described pantograph detection trigger module and track, pantograph detected for judging whether in predetermined detection area, described predetermined detection area all/part covers the route via of described pantograph;
The pickup area of described three-dimensional information acquisition module all/part covers described predetermined detection area, when described pantograph detection trigger module detects described pantograph, trigger described three-dimensional information acquisition module and image data acquisition is carried out to described pantograph, and obtain the image data information of described pantograph.
2. pantograph monitoring running state device according to claim 1, is characterized in that, described three-dimensional information acquisition module comprises: at least two image data acquiring devices, wherein,
At least two image data acquiring devices all detect trigger module with described pantograph and are electrically connected;
The image acquisition region of image data acquiring device described in any one all/part covers described predetermined detection area, and described in each, image data acquiring device synchronously carries out image data acquiring from diverse location to described pantograph.
3. pantograph monitoring running state device according to claim 2, is characterized in that, described three-dimensional information acquisition module also comprises the structured light light source for generation of structured light, described structured light all/part covers described predetermined detection area.
4. pantograph monitoring running state device according to claim 3, is characterized in that,
Described predetermined detection area covers the route via of described pantograph;
Described structured light light source is irradiated and is formed structured light on described pantograph side;
At least two described image data acquiring devices obtain the image data information of the side that described structured light irradiates described pantograph simultaneously from diverse location.
5. pantograph monitoring running state device according to claim 4, is characterized in that,
Described structured light light source is grating light source, and the striped that formed of the grating of described grating light source and the bearing of trend of described pantograph perpendicular.
6. pantograph monitoring running state device according to claim 4, is characterized in that,
The position of at least two described image data acquiring devices is symmetrical arranged centered by the optical axis of described structured light light source, and the line of the optical center point of at least two described image collecting devices is parallel with the bearing of trend of described pantograph.
7., according to described pantograph monitoring running state device arbitrary in claim 2-6, it is characterized in that, between the optical axis of image data acquiring device described in each, be provided with angle.
8. pantograph monitoring running state device according to claim 1, is characterized in that, described pantograph detection trigger module comprises:
For projecting the induced signal projecting unit of induced signal in described predetermined detection area;
For obtaining the induction acquiring unit of described induced signal;
For judging whether described induction information occurs that the feature be blocked exceedes the probe unit of threshold value; And,
When described induction information occurs that the feature be blocked exceedes threshold value, for triggering the trigger element of described three-dimensional information acquisition module;
Described induced signal projecting unit, sensing unit, described acquiring unit, described probe unit and described trigger element are electrically connected successively.
9. pantograph monitoring running state device according to claim 8, is characterized in that, described induction acquiring unit is visual pattern pick-up unit, infrared image pick-up unit, at least one in ultraviolet image pick-up unit and Laser Detecting Set.
10. the pantograph monitoring running state device according to any one of claim 2-6, is characterized in that, described pantograph monitoring running state device also comprises: demarcate information-storing device and dispensing device;
The demarcation information of at least two image data acquiring devices described in storing in described demarcation information-storing device;
All image data acquiring devices in described dispensing device and described demarcation information-storing device, described three-dimensional information acquisition module are electrically connected,
The image data information that described dispensing device collects at least two image data acquiring devices described in obtaining, the demarcation information of at least two image data acquiring devices described in obtaining from described demarcation information-storing device, and described demarcation information and image data information are sent to backstage image server, so that the dimension information of described backstage image server pantograph according to described image data information and described demarcation information extraction.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105571508A (en) * | 2016-01-25 | 2016-05-11 | 成都国铁电气设备有限公司 | Deformation detecting method and deformation detecting system for pantograph of overhead contact system |
| CN112762827A (en) * | 2020-12-25 | 2021-05-07 | 江苏集萃智能光电***研究所有限公司 | Pantograph comprehensive geometric parameter online detection device and method based on laser projection |
| CN112762826A (en) * | 2020-12-25 | 2021-05-07 | 江苏集萃智能光电***研究所有限公司 | Online detection device and method for center line deviation of train pantograph |
| CN112781493A (en) * | 2020-12-25 | 2021-05-11 | 江苏集萃智能光电***研究所有限公司 | Online detection equipment for comprehensive geometric parameters of pantograph of train |
| CN112950532A (en) * | 2021-01-14 | 2021-06-11 | 成都铁安科技有限责任公司 | Train pantograph state detection method |
| CN113310616A (en) * | 2021-07-01 | 2021-08-27 | 成都慧虹宏创科技有限公司 | Train current collector pressure detection system based on strain measurement |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571508A (en) * | 2016-01-25 | 2016-05-11 | 成都国铁电气设备有限公司 | Deformation detecting method and deformation detecting system for pantograph of overhead contact system |
| CN105571508B (en) * | 2016-01-25 | 2018-03-30 | 成都国铁电气设备有限公司 | The deformation detecting method and system of OCS and pantograph |
| CN112762827A (en) * | 2020-12-25 | 2021-05-07 | 江苏集萃智能光电***研究所有限公司 | Pantograph comprehensive geometric parameter online detection device and method based on laser projection |
| CN112762826A (en) * | 2020-12-25 | 2021-05-07 | 江苏集萃智能光电***研究所有限公司 | Online detection device and method for center line deviation of train pantograph |
| CN112781493A (en) * | 2020-12-25 | 2021-05-11 | 江苏集萃智能光电***研究所有限公司 | Online detection equipment for comprehensive geometric parameters of pantograph of train |
| CN112950532A (en) * | 2021-01-14 | 2021-06-11 | 成都铁安科技有限责任公司 | Train pantograph state detection method |
| CN112950532B (en) * | 2021-01-14 | 2024-04-16 | 成都铁安科技有限责任公司 | Train pantograph state detection method |
| CN113310616A (en) * | 2021-07-01 | 2021-08-27 | 成都慧虹宏创科技有限公司 | Train current collector pressure detection system based on strain measurement |
| CN113310616B (en) * | 2021-07-01 | 2021-12-31 | 成都慧虹宏创科技有限公司 | Train current collector pressure detection system based on strain measurement |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |