CN214472830U - System for be used for apparent damage detection of ballastless track bed - Google Patents
System for be used for apparent damage detection of ballastless track bed Download PDFInfo
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- CN214472830U CN214472830U CN202120211599.9U CN202120211599U CN214472830U CN 214472830 U CN214472830 U CN 214472830U CN 202120211599 U CN202120211599 U CN 202120211599U CN 214472830 U CN214472830 U CN 214472830U
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- 238000004458 analytical method Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 13
- 238000005259 measurement Methods 0.000 description 4
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Abstract
This scheme discloses a system that is used for apparent damage detection of ballastless track bed, this system includes: the detection device comprises a frame capable of continuously moving along a ballastless track bed and a detection device arranged on the frame, wherein walking wheels are fixedly arranged below the frame; the detection device comprises a trigger unit which is connected with the walking wheels and can send out signals capable of continuously exciting the acquisition unit to acquire images based on the moving distance of the frame. The system can be used for carrying out mobile continuous detection on the apparent cracks, the separation, the falling blocks and other damages of the railway ballastless track bed, carrying out intelligent identification, analysis and processing on detection data, and finally outputting the information of the class, the mileage, the size, the grade and the like of the apparent damages of the ballastless track bed, so that railway operation and maintenance personnel can conveniently master the degradation condition and the development and change rule of the apparent damages of the ballastless track bed, timely repair and repair are carried out, and powerful support is provided for guaranteeing the safe passing of trains.
Description
Technical Field
The utility model relates to a railway inspection technical field, in particular to a system that is used for apparent damage detection of ballastless track bed.
Background
Under the guidance and driving of railway technological innovation, Chinese railway construction development obtains huge achievements, the overall operation state is good, however, with the increase of railway operation time and frequency, apparent damage degradation of partial ballastless track beds of lines occurs to different degrees, for example, CA mortar bed separation, wide and narrow seam cracks, concrete damage, block falling and the like occur to the ballastless track beds, the apparent damage forms are complex and various, at present, detection is mainly carried out by means of traditional tools such as a manual jam gauge, a crack width gauge and the like, the working efficiency is low, the accuracy is poor, much manpower is consumed, in addition, the detection is limited by a railway maintenance skylight, the upper detection time is limited, certain potential hazards exist in the safety of operating personnel, and the mode cannot adapt to the requirement of quick railway development and cannot match the advanced level of the railway construction technology. Under the intelligent development trend of railway operation and maintenance, a new technology and a new method are urgently needed to improve the automation level of the apparent damage inspection of the ballastless track bed, and the development of instrument equipment capable of moving and intelligently detecting the apparent damage of the ballastless track bed is of great significance for assisting or replacing manual mechanical inspection.
SUMMERY OF THE UTILITY MODEL
One object of this scheme is to provide a system for ballastless track bed apparent damage detection. The method can be used for carrying out mobile continuous detection on the apparent cracks, the separation, the falling blocks and other damages of the railway ballastless track bed, carrying out intelligent identification, analysis and processing on detection data, and finally outputting the information of the class, the mileage, the size, the grade and the like of the apparent damages of the ballastless track bed, so that railway operation and maintenance personnel can master the degradation condition and the development and change rule of the apparent damages of the ballastless track bed, timely manage and repair the apparent damages, and provide powerful support for guaranteeing the safe passing of trains.
In order to achieve the purpose, the scheme is as follows:
a system for ballastless track bed apparent damage detection, the system comprising:
the system comprises: the device comprises a frame capable of continuously moving along a ballastless track bed and a detection device arranged on the frame; a walking wheel is fixedly arranged below the bracket;
the detection device includes:
the triggering unit is connected with the walking wheels and sends a triggering signal capable of continuously exciting the acquisition unit to acquire images based on the moving distance of the frame;
the acquisition unit is fixedly arranged on the frame and used for receiving a trigger signal and acquiring image information of the ballastless track bed;
and the processing unit is fixedly arranged on the frame and used for processing the acquired image information and judging whether the ballastless track bed has apparent damage or not.
Preferably, a plurality of acquisition units are symmetrically arranged on the frame by taking the center of the frame as a symmetric center, and different acquisition units positioned on the same side of the center of the frame have different shooting directions.
Preferably, the shooting direction of the acquisition unit close to the center of the frame is vertical to the horizontal plane of the ballastless track bed; the shooting direction of the acquisition unit far away from the center of the frame forms an angle beta with the horizontal plane of the ballastless track bed, and the angle beta can be 45 degrees°。
Preferably, two ends of the frame are connected with the wheel support through a screw and a nut, the wheel support is sleeved on a shaft sleeve of the traveling wheel, and a spring is sleeved on the periphery of the screw between the frame and the wheel support;
one end of the trigger unit is fixedly arranged on the wheel bracket, and the other end of the trigger unit is connected with the wheel shaft of the walking wheel so as to realize that the trigger unit can receive the real-time information of the walking wheel.
Preferably, the trigger unit is an incremental rotary encoder.
Preferably, the acquisition unit is a line camera, and the processing unit is a computer.
Preferably, the system further comprises a power unit for providing power to the detection device, wherein the power unit is a storage battery; the system also includes a push rod connected to the frame.
The scheme has the following beneficial effects:
1. the detection system of the scheme can continuously detect the apparent state movement of the ballastless track bed, thereby greatly improving the detection efficiency;
2. the linear array camera is used for photographing, the photographed image is identified by special software, the damage characteristics and the size are quantitatively judged, and compared with manual measurement and reading, the accuracy of the detection of the apparent damage of the ballastless track bed is improved;
3. the detection result is output in a document mode, so that data management, recording and historical data query are facilitated, and the intelligent level of railway field detection is greatly improved;
4. by using the encoder trigger signal, the detection result can be subjected to mileage positioning and continuous image non-repeated acquisition.
5. The computer processes the detection data in real time, synchronously displays the detection result, and facilitates the detection personnel to master the apparent state of the ballastless track bed in real time and recheck and confirm.
Drawings
In order to illustrate the implementation of the solution more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the solution, and that other drawings may be derived from these drawings by a person skilled in the art without inventive effort.
FIG. 1 is a schematic diagram of a line camera measurement;
FIG. 2 is a schematic view of an apparent damage detection system of a ballastless track bed according to an embodiment;
FIG. 3 is an encoder installation diagram of an embodiment;
FIG. 4 is a schematic diagram of a mount on a line camera according to an embodiment;
FIG. 5 is a schematic view of an embodiment camera mount;
wherein,
1-a push rod;
2-a frame;
3-an encoder;
4-line camera;
5-a computer;
6-a storage battery;
7-a cross beam;
8-running wheels;
9-screw rod;
10-a spring;
11-wheel support;
12-display screen
13-a mounting frame;
14-a camera mount;
15-ballastless track bed.
Detailed Description
Embodiments of the present solution will be described in further detail below with reference to the accompanying drawings. It is clear that the described embodiments are only a part of the embodiments of the present solution, and not an exhaustive list of all embodiments. It should be noted that, in the present embodiment, features of the embodiment and the embodiment may be combined with each other without conflict.
The terms "first," "second," and the like in the description and in the claims, and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.
Along with the increase of the railway operation time and frequency, apparent damage deterioration of different degrees occurs to the ballastless track bed of part of railway lines, for example, CA mortar bed separation, wide and narrow seam cracks, concrete damage, block falling and the like occur to the ballastless track bed, the apparent damage forms are complex and various, and the manual detection efficiency is low. Based on this, this scheme provides how to use artificial intelligence technique to detect ballastless track bed apparent state.
Fig. 1 shows the measurement process of a line-scan camera, where a is the length of a single image, d is the width of a single image, and m is the measured object distance. The linear array camera 4 is installed on the vehicle frame 2, the carrier moves along the X direction of the track, and the value of the measured object distance m between the linear array camera 4 and the surface of the ballastless track bed 15 is kept unchanged in the moving process. When the linear array camera 4 is triggered by an external triggering mode of the encoder 3, the linear array camera 4 shoots an a x d long and thin image every time the linear array camera is triggered, d is 1 pixel, a is composed of a plurality of pixels, and the number of the pixels is determined by camera parameters. And finally, splicing a plurality of images into a large image according to a trigger signal of the encoder 3 to obtain complete image information of the surface of the ballastless track bed 15, extracting damage characteristics of the surface of the ballastless track bed 15 through image recognition software, and calculating the size of the damage characteristics according to calibration parameters.
As shown in fig. 2, a system for detecting apparent damage of a ballastless track bed comprises a frame 2 continuously movable along a ballastless track bed 15, and a detection device arranged on the frame 2; a traveling wheel 8 is fixedly arranged below the frame 2; the detection device includes:
the encoder 3 is connected with the walking wheels 8 and sends out a trigger signal capable of continuously exciting the linear array camera 4 to acquire images based on the moving distance of the frame 2;
the linear array camera 4 is fixedly arranged on the frame 2, and starts to acquire image information of the ballastless track bed 15 after receiving a trigger signal sent by the encoder 3;
the computer 5 is fixedly arranged on the frame 2, receives the image signal sent by the linear array camera 4, analyzes the image signal and judges whether the ballastless track bed 15 has apparent damage or not; in one embodiment, for convenience of installation and use, the computer 5 arranged on the frame 2 is a microcomputer;
the encoder 3 selects an incremental rotary encoder.
As shown in fig. 3, two ends of the frame 2 are connected with wheel brackets 11 through screws and nuts, the wheel brackets 11 are sleeved on shaft sleeves of the traveling wheels 8, and springs 10 are sleeved on the peripheries of the screws between the cross beams 7 and the wheel brackets 11;
one end of the encoder 3 is fixedly arranged on the wheel bracket 11, and the other end is connected with the wheel shaft of the walking wheel 8 to receive the advancing information of the walking wheel 8 in real time.
The screw 9 which connects the frame 12 with the wheel support 11 plays a limiting role for the walking wheel 8, due to the fixing effect of the screw 9, the sliding of the walking wheel 8 in the advancing direction is avoided, the sliding of the walking wheel 8 only along the up-down direction of the screw 9 is ensured, the spring 10 which is sleeved outside the screw 9 can apply a buffer force in the vertical direction to the encoder 3 and the walking wheel 8 through the wheel support 11, and the phenomenon that the encoder 3 idles or slips due to the fact that tracks are not smooth or the multiple walking wheels 8 below the frame 2 are not coplanar in the operation detection process of the frame 2, and the phenomenon that images collected by the linear array camera 4 are incomplete due to the fact that the trigger signals output by the encoder 3 are discontinuous is avoided through the screw 9 and the sleeved spring 10.
In this embodiment, the encoder 3 is preferably an incremental rotary encoder, and provides a trigger signal at equal intervals according to the running distance, so as to realize continuous and non-repeated acquisition of the image to be acquired. BEI's H25 series encoder, or Limonic optical A-CHA type encoder, may be selected.
As shown in fig. 4 and 5, in this embodiment, a mounting frame 13 of the line camera 4 is disposed on the carriage 2, 4 fixing shafts for fixing the positions of the cameras are disposed on the mounting frame 13 of the line camera, and three cylindrical steps with diameters of d1, d2, and d3 are disposed at the end of the fixing shafts. The camera mounting seat 14 is welded on the frame 2, the surface of the camera mounting seat 14 is provided with holes with the diameter of D1 and the width of D2, D3 is larger than D1 and is larger than D1, D2 is larger than D2, D3 and D2 are inserted into the hole of D1 and then pressed downwards during mounting, so that the D2 is clamped into the D2 groove to be fixed firmly, and the linear array camera 4 is rapidly detached and mounted.
4 linear-array cameras 4 are symmetrically arranged on the frame 2 by taking the center of the frame 2 as a symmetrical center, and the included angles between the shooting directions of the 2 linear-array cameras 4 positioned on the same side of the center of the frame 2 and the shot surface are different; the shooting direction of the linear array camera 4 close to the center of the frame 2 is vertical to the horizontal plane of the track; the shooting direction of the linear array camera 4 far away from the center of the frame 2 forms an angle beta with the horizontal plane of the track, and the size of the angle beta can be 45°Or set other angles according to the photographing region.
For transportation and transportation, the frame 2 of the present embodiment may be composed of a plurality of parts, such as a bolt-on removable structure.
The frame 2 adopts a contact mode of the running wheels 8 and the steel rails, and realizes the continuous movement detection when the push rod 1 is manually pushed.
The detection system can also adopt the storage battery 6 to provide power for each item of equipment in the ballastless track bed 15 apparent damage detection system.
In order to facilitate observation, the detection system can further comprise a display screen 12, and the detection state and the detection result of the software are displayed in real time through the display screen 12, so that the detection personnel can be helped to master the apparent state of the ballastless track bed 15 in real time.
The detection steps of the detection system using the scheme are as follows:
before detection, the detection system is manually conveyed to a detection starting point, the vehicle frame 2, the computer 5, the linear array camera 4, the storage battery 6 and other components are assembled, the power supply is started, and after the computer 5 and the detection software are started, the ballastless track bed 15 apparent damage detection system is manually pushed to continuously detect the ballastless track bed 15 apparent state.
(1) The ballastless track bed 15 apparent damage detection system carries linear cameras to continuously collect and photograph the apparent state of the ballastless track bed 15, and the number of the carried linear cameras is determined according to the apparent range of the ballastless track bed 15 to be detected;
(2) splicing linear images shot by a linear array camera into a large image by a computer, and distinguishing the collected image in real time by image recognition software to identify an apparent damage area;
(3) computer detection software extracts and quantifies the damage characteristics in real time according to the judged damage area image, and gives out detection result information by combining mileage information, track plate number and other information
The detection system and the method using the scheme have the following effects,
1. the system for detecting the apparent damage of the ballastless track bed in the embodiment can continuously detect the apparent movement of the ballastless track bed, so that the detection efficiency is greatly improved;
2. the linear array camera is used for photographing, the photographed image is identified by special software, the damage characteristics and the size are quantitatively judged, and compared with manual measurement and reading, the accuracy of the detection of the apparent damage of the ballastless track bed is improved;
3. the detection result is output in a document mode, so that data management, recording and historical data query are facilitated, and the intelligent level of railway field detection is greatly improved;
4. by using the encoder trigger signal, the detection result can be subjected to mileage positioning and continuous image non-repeated acquisition.
5. The computer processes the detection data in real time, synchronously displays the detection result, and facilitates the detection personnel to master the apparent state of the ballastless track bed in real time and recheck and confirm.
Obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it is obvious for those skilled in the art to make other variations or changes based on the above descriptions, and all the embodiments cannot be exhausted here, and all the obvious variations or changes that belong to the technical solutions of the present invention are still in the protection scope of the present invention.
Claims (7)
1. A system for ballastless track bed apparent damage detection, the system comprising: the device comprises a frame (2) capable of continuously moving along a ballastless track bed (15) and a detection device arranged on the frame (2); a traveling wheel (8) is fixedly arranged below the frame (2);
the detection device includes:
the triggering unit is connected with the walking wheels (8) and sends a triggering signal capable of continuously exciting the acquisition unit to acquire images based on the moving distance of the frame (2);
the acquisition unit is fixedly arranged on the frame (2) and used for receiving a trigger signal and acquiring image information of the ballastless track bed (15);
and the processing unit is fixedly arranged on the frame (2) and used for processing the acquired image information and judging whether the ballastless track bed (15) has apparent damage or not.
2. The system according to claim 1, characterized in that a plurality of acquisition units are symmetrically arranged on the frame (2) with the center of the frame (2) as a symmetry center, and different acquisition units located on the same side of the frame center have different shooting directions.
3. The system according to claim 2, characterized in that the shooting direction of the acquisition unit near the center of the frame (2) is perpendicular to the horizontal plane of the ballastless track bed (15); the shooting direction of the acquisition unit far away from the center of the frame (2) forms an angle beta with the horizontal plane of the ballastless track bed (15), and the angle beta can be 45 degrees°。
4. The system according to claim 1, characterized in that, the two ends of the frame (2) are connected with the wheel bracket (11) through a screw and a nut, the wheel bracket (11) is sleeved on the shaft sleeve of the walking wheel (8), and the periphery of the screw between the frame (2) and the wheel bracket (11) is sleeved with a spring (10);
one end of the trigger unit is fixedly arranged on the wheel bracket (11), and the other end of the trigger unit is connected with a wheel shaft of the walking wheel (8) so as to realize that the trigger unit can receive real-time information of the walking wheel (8).
5. The system of claim 1, wherein the trigger unit is an incremental rotary encoder.
6. The system according to claim 1, characterized in that the acquisition unit is a line camera (4) and the processing unit is a computer (5).
7. The system according to claim 1, characterized in that it further comprises a power unit for supplying electric power to said detection means, said power unit being a battery (6); the system also comprises a push rod (1) connected with the frame (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120211599.9U CN214472830U (en) | 2021-01-26 | 2021-01-26 | System for be used for apparent damage detection of ballastless track bed |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120211599.9U CN214472830U (en) | 2021-01-26 | 2021-01-26 | System for be used for apparent damage detection of ballastless track bed |
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| CN214472830U true CN214472830U (en) | 2021-10-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112798606A (en) * | 2021-01-26 | 2021-05-14 | 中国铁道科学研究院集团有限公司 | System and method for detecting apparent damage of ballastless track bed |
| CN114842193A (en) * | 2022-04-21 | 2022-08-02 | 上海应用技术大学 | Intelligent track slab gap detection vehicle |
-
2021
- 2021-01-26 CN CN202120211599.9U patent/CN214472830U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112798606A (en) * | 2021-01-26 | 2021-05-14 | 中国铁道科学研究院集团有限公司 | System and method for detecting apparent damage of ballastless track bed |
| CN114842193A (en) * | 2022-04-21 | 2022-08-02 | 上海应用技术大学 | Intelligent track slab gap detection vehicle |
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