CN220772468U - Air leakage positioning device for bottom pipeline of train - Google Patents
Air leakage positioning device for bottom pipeline of train Download PDFInfo
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Abstract
The utility model discloses a positioning device for air leakage of a pipeline at the bottom of a train, which belongs to the technical field of pipeline leakage detection and aims to solve the problems that the existing positioning of an air pipe leakage point of the train is complex in operation, cannot be quickly and intuitively determined, has poor positioning accuracy and affects the efficiency of detection and positioning. The method and the device are mainly used for positioning the leakage points in the bottom pipeline of the train.
Description
Technical Field
The utility model belongs to the technical field of pipeline leakage detection, and particularly relates to a train bottom pipeline leakage positioning device.
Background
At present, when a train is overhauled in an overhauling warehouse, a train pipe and a main air pipe are required to be detected, and whether leakage occurs in the pipelines or not is judged. If leakage occurs, the leakage position needs to be positioned for maintenance, but because the train pipeline is long, the position determination is not easy to perform, and thus the quick positioning maintenance cannot be performed. Some means can detect the leakage position, for example, the position is determined by opening and closing valves at all positions, but the operation is complex, the position cannot be determined rapidly and intuitively, the positioning accuracy is poor, and the efficiency of detection and positioning is affected, so that the development of a device capable of rapidly and accurately positioning the leakage point of the train air duct is very in line with the actual needs.
Disclosure of Invention
The utility model aims to solve the problems that the existing method for positioning the leakage point of the train air pipe is complex in operation, cannot quickly and intuitively determine the position, is poor in positioning accuracy and affects the efficiency of detection and positioning, and further provides a train bottom pipeline leakage positioning device;
the positioning device comprises a traveling module, a sound acquisition module, an imaging module and an industrial control and display module, wherein the traveling module comprises a mobile trolley and a traveling track, the traveling track is fixedly connected to the ground of a train detection area, two sides of the traveling track are respectively provided with a support bracket, each support bracket is fixedly connected with the ground of the train detection area, a detected train is arranged right above the traveling track, the length extension direction of the traveling track is the same as that of the detected train, the detected train is fixed on the support brackets on two sides of the traveling track, the mobile trolley is arranged on the traveling track, the mobile trolley moves along the length extension direction of the traveling track, the sound acquisition module, the imaging module and the industrial control and display module are integrated on the mobile trolley, the sound acquisition end of the sound acquisition module and the image acquisition end of the imaging module are arranged towards the bottom of the detected train, and the industrial control and display module are connected with the sound acquisition module, the imaging module and a driving motor in the mobile trolley through wires;
further, one end of the running track is provided with a front limit switch, and the other end of the running track is provided with a rear limit switch;
further, a containing cavity is formed in the top of the movable trolley, a storage battery is arranged in the containing cavity, the storage battery is connected with a power output motor of the movable trolley through a wire, and the storage battery is also connected with a power input end of the sound acquisition module, a power input end of the imaging module and a power input end of the industrial control and display module through wires;
further, the sound collection module comprises a mounting plate and a plurality of sound collection microphones, the mounting plate is arranged at the top of the mobile trolley, the mounting plate is connected with the mobile trolley in a detachable mode, the sound collection microphones are all arranged on the upper surface of the mounting plate, the sound collection end of each sound collection microphone faces to the bottom of a detected train, the electric power input end of each sound collection microphone is connected with a storage battery in the mobile trolley through a wire, the information output end of each sound collection microphone is connected with the industrial control and display module through a wire, and the imaging module is arranged at the center of the top of the mounting plate;
further, the plurality of sound collecting microphones are divided into a first sound collecting group and a second sound collecting group, wherein the first sound collecting group comprises eight first sound collecting microphones which are sequentially and equidistantly arranged along the edge contour of the mounting plate, the second sound collecting group comprises four second sound collecting microphones which are circumferentially equidistantly arranged around the imaging module, and the distance between each second sound collecting microphone and three nearest first sound collecting microphones is equal;
further, the imaging module comprises a camera and a light supplementing lamp, the camera is arranged at the center of the top of the mounting plate, the shooting end of the camera is arranged towards the bottom of the detected train, the power input end of the camera is connected with a storage battery in the mobile trolley through a wire, the information output end of the camera is connected with the industrial control and display module through a wire, the light supplementing lamp is sleeved on a camera of the camera, the power input end of the light supplementing lamp is connected with the storage battery in the mobile trolley through a wire, and the switch of the light supplementing lamp is connected with the industrial control and display module through a wire;
further, the industrial computer and the display module comprise an industrial computer and a display, the industrial computer is arranged in a containing cavity in the mobile trolley, a shell of the industrial computer is connected with the bottom of the containing cavity in a detachable mode, the display is arranged at one end of the mobile trolley, which is close to the rear limit switch, the shell of the display is fixedly connected with the outer end wall of the mobile trolley, the electric power input end of the industrial computer is connected with a storage battery in the mobile trolley through a wire, the electric power input end of the display is connected with the storage battery in the mobile trolley through a wire, the information input end of the industrial computer is connected with the information output end of the sound collecting microphone and the information output end of the camera through a wire, the information output end of the industrial computer is connected with the display through a wire, the signal input end of the industrial computer is connected with the operating handle through a remote signal, and the signal output end of the industrial computer is connected with a driving motor in the mobile trolley and a light supplementing lamp through a wire.
The method for positioning the air leakage of the bottom pipeline of the train is realized through the following steps:
step one: firstly, placing a detected train on two support brackets and fixing the detected train;
step two: after the detected train is fixed, an operator sends a specification to the industrial personal computer through an operation handle, the industrial personal computer drives the movable trolley to move forward at a constant speed along the length direction of the train by taking a front limit switch as a starting point, and a parking interval occurs after the movable trolley moves for a certain distance;
step three: when the mobile trolley moves in the second step, an operator sends an instruction to the industrial personal computer through an operation handle, the industrial personal computer starts a camera to work, so that the camera photographs the bottom of the train, the time point of photographing the camera is the same as the time point of parking the mobile trolley, and the camera transmits collected picture information to the industrial personal computer after photographing;
step four: when the camera shoots in the third step, the plurality of sound collecting microphones synchronously act, gas leakage sound in the range of the collected picture in the third step is collected, and the collected sound information is transmitted to the industrial personal computer;
step five: and the industrial personal computer integrates each photo acquired in the third step and the corresponding sound information acquired in the fourth step, marks the position information of the leakage point in the pictures according to an acoustic positioning mode, stores the pictures with the position information of the leakage point, and after the mobile trolley moves to the rear limit switch, an operator invokes the stored picture information to quickly position the leakage point.
The application has the beneficial effects compared with the prior art that:
this patent provides a bottom of train pipeline gas leakage positioner, combine image and acoustics, and automated technique, the demonstration that can be accurate leaks the position and compares in current leakage point locate mode all has very big promotion in efficiency and accuracy, when the vent line of bottom of train leaks gas, can fix a position to revealing the position using the locate mode method that this application provided, and visual display leaks the position on the photo, also can use this equipment to leak gas detection to the bottom of the train, can discover gas leakage, and give direct positional information. The positioning device is a mobile device, can run in a maintenance tunnel of a train, is provided with a group of microphone arrays, is provided with a camera in the middle of each microphone array, can receive leakage abnormal sound at the bottom of the train, judges the occurrence position of the abnormal sound according to the time of each microphone receiving the abnormal sound, marks on a photo shot by the camera, and enables the leakage position to be visually displayed on the photo.
Drawings
FIG. 1 is a schematic top view of a positioning device according to the present application;
FIG. 2 is a schematic top view of a mobile cart in a positioning device according to the present application;
FIG. 3 is a schematic front view of a mobile cart in the positioning device according to the present application;
FIG. 4 is a right side schematic view of a mobile cart in a positioning device according to the present application;
in the figure, a moving trolley 11, a front limit switch 12, a rear limit switch 13, a running track 14, a 21 mounting plate, a 22 first sound collecting microphone, a 23 second sound collecting microphone, a 31 camera, a 32 light supplementing lamp, a 41 industrial personal computer and a 42 display.
Detailed Description
The first embodiment is as follows: referring to fig. 1 to 4, this embodiment is described with reference to fig. 1 to 4, in which a positioning device for air leakage in a pipeline at the bottom of a train is provided, the positioning device includes a running module, a sound collecting module, an imaging module and an industrial control and display module, the running module includes a moving trolley 11 and a running rail 14, the running rail 14 is fixedly connected to the ground of a train detection area, two sides of the running rail 14 are respectively provided with a support bracket, each support bracket is fixedly connected to the ground of the train detection area, the detected train is disposed directly above the running rail 14, the length extending direction of the running rail 14 is the same as the length extending direction of the detected train, the detected train is fixed on the support brackets at two sides of the running rail 14, the moving trolley 11 is disposed on the running rail 14, the moving trolley 11 moves along the length extending direction of the running rail 14, the sound collecting module, the imaging module and the industrial control and display module are all integrated on the moving trolley 11, and the sound collecting end of the imaging module and the image collecting end of the imaging module are all disposed towards the bottom of the detected train, and the industrial control and display module are connected to the driving module and the imaging module 11.
The second embodiment is as follows: the present embodiment is described with reference to fig. 1 to 4, and one difference between the present embodiment and the specific embodiment is that a front limit switch 12 is disposed at one end of the running rail 14, and a rear limit switch 13 is disposed at the other end of the running rail 14. Other compositions and connection modes are the same as in the first embodiment.
In the present embodiment, the travel of the travelling car 11 is limited by the front limit switch 12 and the rear limit switch 13, so that the travelling car 11 can stably move in the travelling rail 14.
And a third specific embodiment: the second difference between this embodiment and the specific embodiment is that the top of the mobile cart 11 is processed with a receiving cavity, a storage battery is disposed in the receiving cavity, the storage battery is connected with the power output motor of the mobile cart 11 through a wire, and the storage battery is further connected with the power input end of the sound collecting module, the power input end of the imaging module and the power input end of the industrial control and display module through wires. Other compositions and connection modes are the same as those of the second embodiment.
In this embodiment, the battery is used to supply power to the circuit elements of the whole vehicle.
The specific embodiment IV is as follows: the third difference between this embodiment and the specific embodiment is that the sound collection module includes a mounting plate 21 and a plurality of sound collection microphones, the mounting plate 21 is disposed at the top of the mobile cart 11, the mounting plate 21 is detachably connected with the mobile cart 11, the plurality of sound collection microphones are all mounted on the upper surface of the mounting plate 21, the sound collection end of each sound collection microphone is disposed towards the bottom of the detected train, the electric power input end of each sound collection microphone is connected with the storage battery in the mobile cart 11 through a wire, the information output end of each sound collection microphone is connected with the industrial control and display module through a wire, and the imaging module is mounted at the center of the top of the mounting plate 21. Other compositions and connection modes are the same as those of the third embodiment.
Fifth embodiment: the fourth difference between the present embodiment and the specific embodiment is that the plurality of sound collecting microphones are divided into a first sound collecting group and a second sound collecting group, the first sound collecting group includes eight first sound collecting microphones 22, the eight first sound collecting microphones 22 are sequentially equidistantly arranged along the edge profile of the mounting plate 21, the second sound collecting group includes four second sound collecting microphones 23, the four second sound collecting microphones 23 are circumferentially equidistantly arranged around the imaging module, and the distance between each second sound collecting microphone 23 and the three first sound collecting microphones 22 closest thereto is equal. Other compositions and connection modes are the same as those of the fourth embodiment.
In combination with the description of the fourth embodiment and the fifth embodiment, in the present application, the sound collecting module is used for collecting the sound leaking from the leaking point, and the structural functions of the first sound collecting microphone 22 and the second sound collecting microphone 23 are the same, because the sound collecting modules are arranged according to the specific positions, the distances from the sound source to the twelve sound collecting microphones are different, so that the different distances from the sound source to the sound collecting microphones can be obtained according to the time difference that the sound collecting microphones receive the sound, and the sound source position is marked on the picture collected in the imaging module according to the position information of the twelve sound collecting microphones from the sound source.
Specific embodiment six: the fifth difference between the present embodiment and the specific embodiment is that the imaging module includes a camera 31 and a light compensating lamp 32, the camera 31 is installed at the center of the top of the mounting board 21, the shooting end of the camera 31 is set towards the bottom of the detected train, the power input end of the camera 31 is connected with the storage battery in the mobile trolley 11 through a wire, the information output end of the camera 31 is connected with the industrial control and display module through a wire, the light compensating lamp 32 is sleeved on the camera of the camera 31, the power input end of the light compensating lamp 32 is connected with the storage battery in the mobile trolley 11 through a wire, and the switch of the light compensating lamp 32 is connected with the industrial control and display module through a wire. Other compositions and connection modes are the same as those of the fifth embodiment.
In this embodiment, because the light is darker in the train bottom, adopt the camera to take a photograph and can exist and shoot the unclear condition of taking a photograph and appear, set up light filling lamp 32 and can guarantee a comparatively good collection environment when taking a photograph, guarantee the collection effect.
Seventh embodiment: the sixth difference between the present embodiment and the specific embodiment is that the present embodiment is described with reference to fig. 1 to fig. 4, and the industrial personal computer and display module includes an industrial personal computer 41 and a display 42, where the industrial personal computer 41 is disposed in a housing cavity in the mobile cart 11, and the housing of the industrial personal computer 41 is detachably connected to the bottom of the housing cavity, the display 42 is disposed at one end of the mobile cart 11 near the rear limit switch 13, and the housing of the display 42 is fixedly connected to an outer end wall of the mobile cart 11, an electric power input end of the industrial personal computer 41 is connected to a storage battery in the mobile cart 11 through a wire, an electric power input end of the display 42 is connected to the storage battery in the mobile cart 11 through a wire, an information input end of the industrial personal computer 41 is connected to an information output end of the sound collecting microphone and an information output end of the camera 31 through a wire, a signal input end of the industrial personal computer 41 is connected to the display 42 through a wire, a signal input end of the industrial personal computer 41 is connected to an operation handle through a remote signal, and a signal output end of the industrial personal computer 41 is connected to a driving motor in the mobile cart 11 and a light switch 32. Other compositions and connection modes are the same as those of the sixth embodiment.
Eighth embodiment: the present embodiment is described with reference to fig. 1 to 4, and provides a method for locating leakage of a train bottom pipeline, which is implemented by the following steps;
step one: firstly, placing a detected train on two support brackets and fixing the detected train;
step two: after the detected train is fixed, an operator sends a designation to the industrial personal computer 41 through an operation handle, the industrial personal computer 41 drives the movable trolley 11 to uniformly advance along the length direction of the train by taking the front limit switch 12 as a starting point, and a parking interval occurs after the movable trolley 11 moves for a certain distance;
step three: when the mobile trolley 11 moves in the second step, an operator sends a designation to the industrial personal computer 41 through an operation handle, the industrial personal computer 41 starts the camera 31 to work, so that the camera 31 photographs the bottom of the train, the time point when the camera 31 photographs is the same as the time point when the mobile trolley 11 stops, and the camera 31 transmits collected picture information to the industrial personal computer 41 after photographing;
step four: when the camera 31 in the third step photographs, the plurality of sound collecting microphones act synchronously, gas leakage sound in the range of the collected picture in the third step is collected, and the collected sound information is transmitted to the industrial personal computer 41;
step five: the industrial personal computer 41 integrates each photo acquired in the third step and the corresponding sound information acquired in the fourth step, marks the position information of the leakage point in the pictures according to the acoustic positioning mode, stores the pictures with the position information of the leakage point, and after the mobile trolley 11 moves to the rear limit switch 14, an operator retrieves the stored picture information to quickly position the leakage point.
The positioning method provided by the application utilizes the mode of sound-image combination to perform positioning, and in a maintenance workshop, a car inspector finds out air leakage of a vehicle and starts an air leakage positioning device of a bottom pipeline of a train. At this time, the mobile trolley 11 starts from the front limiting device 12 at a constant speed and advances while starting the imaging module to photograph the bottom of the train, the sound collecting modules work simultaneously when photographing each time, and collect the gas leakage sound in the range of the picture, because the sound collecting modules are arranged according to specific positions, the distances from the sound source to 12 sound collecting microphones are different, so that different distances from the sound source to twelve sound collecting microphones can be obtained according to different times when the sound collecting microphones receive the sound, the sound source position can be marked on the picture according to the position information of the twelve sound collecting microphones from the sound source, the mobile trolley 11 starts from the front limiting device 12 to the rear limiting device 13 to stop along the train, photographs the bottom of the whole train, displays the picture marked with the gas leakage position to the car inspector, and simultaneously, according to the advancing speed of the mobile trolley 11 and the photographing time of the gas leakage position picture, the distance from the front limiting device 12 can be obtained, and the car inspector can conveniently and rapidly locate the fault point;
the position of the train pipeline is mostly at the bottom of the bogie, the imaging module is adjusted to enable an imaging photo to be imaged at the bottom of the bogie, the imaging range is 2500mm or 2500mm square, the width of the bogie can be covered, each time the moving trolley 11 stops moving 2500mm, photographing and sound collection are carried out, the size of the mounting plate 21 in the sound collection module is 900mm or 900mm, the center of the camera 31 is taken as the coordinate center, and the coordinates of twelve sound collection microphones are recorded as V1 (x 1, y 1) … V12 (x 12, y 12) (the specific distribution of the sound collection microphones is shown in fig. 2). The propagation speed of sound is about 340 meters/second, the sampling frequency of sound collection microphone is 24000hz, the time that twelve sound collection microphones received leakage sound is t1 … t12, take a picture and sound collection after travelling car 11 stops, sound collection microphone V1 receives sound information through t1 this moment, combine the sound velocity, can obtain the distance S1=340×t1 of leakage source R distance V1, can obtain the distance Sn of different sound collection microphone distance leakage source R equally, take 3 sound collection microphones and leakage source R' S distance can obtain coordinate R (xr, yr) of leakage source on the sound collection module, take different 3 sound collection microphones and calculate, can improve the precision, prevent the interference. And a plurality of groups of sound collecting microphones are taken, so that a coordinate set of the leakage source R can be obtained. The range of 900mm of the sound acquisition module is enlarged to 2500mm of 2500mm in proportion, the coordinate of the leakage source R is enlarged in proportion corresponding to the photo size of the imaging module, and the leakage source R is marked on the photo, so that the accurate positioning of the leakage point on the image is realized.
The present utility model has been described in terms of preferred embodiments, but is not limited to the above-described embodiments, and any simple modification, equivalent changes and variation of the above-described embodiments according to the technical principles of the present utility model will be within the scope of the present utility model when the above-described structures and technical principles can be utilized to make a few equivalent embodiments without departing from the technical scope of the present utility model.
Claims (7)
1. The utility model provides a train bottom pipeline gas leakage positioner which characterized in that: the positioning device comprises a walking module, a sound collection module, an imaging module and an industrial control and display module, wherein the walking module comprises a mobile trolley (11) and a walking track (14), the walking track (14) is fixedly connected on the ground of a train detection area, two sides of the walking track (14) are respectively provided with a support bracket, each support bracket is fixedly connected with the ground of the train detection area, a detected train is arranged right above the walking track (14), the length extension direction of the walking track (14) is identical to the length extension direction of the detected train, the detected train is fixed on the support brackets on the two sides of the walking track (14), the mobile trolley (11) is arranged on the walking track (14), the mobile trolley (11) moves along the length extension direction of the walking track (14), the sound collection module, the imaging module and the industrial control and display module are all integrated on the mobile trolley (11), and the sound collection end of the sound collection module and the image collection end of the imaging module are all arranged towards the bottom of the detected train, and the industrial control and display module are connected with the imaging module through a wire and the imaging module and the driving module (11).
2. The bottom of train pipeline leak location apparatus of claim 1, wherein: one end of the running track (14) is provided with a front limit switch (12), and the other end of the running track (14) is provided with a rear limit switch (13).
3. The bottom-of-train pipeline leak location apparatus of claim 2, wherein: the top processing of travelling car (11) has the chamber of holding, holds the intracavity and is equipped with the battery, and the battery passes through the wire and links to each other with the power take off motor of travelling car (11), and the battery still passes through the wire and links to each other with the electric power input of sound collection module, imaging module's electric power input and industrial control and display module's electric power input.
4. A bottom-of-train pipeline leak location apparatus as defined in claim 3, wherein: the sound collection module comprises a mounting plate (21) and a plurality of sound collection microphones, the mounting plate (21) is arranged at the top of the mobile trolley (11), the mounting plate (21) is connected with the mobile trolley (11) in a disassembling mode, the sound collection microphones are all arranged on the upper surface of the mounting plate (21), the sound collection ends of the sound collection microphones are arranged towards the bottom of a detected train, the electric power input end of each sound collection microphone is connected with a storage battery in the mobile trolley (11) through a lead, the information output end of each sound collection microphone is connected with an industrial control and display module through the lead, and the imaging module is arranged at the center of the top of the mounting plate (21).
5. The bottom-of-train pipeline leak location apparatus of claim 4, wherein: the sound collection microphones are divided into a sound collection group and a two-number sound collection group, the sound collection group comprises eight one-number sound collection microphones (22), the eight one-number sound collection microphones (22) are sequentially equidistantly arranged along the edge profile of the mounting plate (21), the two-number sound collection group comprises four two-number sound collection microphones (23), the four two-number sound collection microphones (23) are circumferentially equidistantly arranged around the imaging module, and the distance between each two-number sound collection microphone (23) and three one-number sound collection microphones (22) closest to the two-number sound collection microphones is equal.
6. The bottom-of-train pipeline leak location apparatus of claim 5, wherein: the imaging module comprises a camera (31) and a light supplementing lamp (32), the camera (31) is arranged at the center of the top of the mounting plate (21), the shooting end of the camera (31) is arranged towards the bottom of a detected train, the power input end of the camera (31) is connected with a storage battery in the mobile trolley (11) through a wire, the information output end of the camera (31) is connected with an industrial control and display module through a wire, the light supplementing lamp (32) is sleeved on a camera of the camera (31), the power input end of the light supplementing lamp (32) is connected with the storage battery in the mobile trolley (11) through a wire, and the switch of the light supplementing lamp (32) is connected with the industrial control and display module through a wire.
7. The bottom-of-train pipeline leak location apparatus of claim 6, wherein: the utility model provides an industrial computer and display module includes industrial computer (41) and display (42), the holding intracavity of industrial computer (41) setting in travelling car (11), and the casing of industrial computer (41) is dismantled with the bottom of holding the chamber and is connected, display (42) set up on travelling car (11) are close to the one end of back limit switch (13), and the casing of display (42) is with the outer end wall fixed connection of travelling car (11), the electric power input of industrial computer (41) passes through the wire and links to each other with the battery in travelling car (11), the electric power input of display (42) passes through the wire and links to each other with the battery in travelling car (11), the information input of industrial computer (41) passes through the wire and links to each other with the information output of sound collection microphone and camera (31), the information output of industrial computer (41) passes through the wire and links to each other with display (42), the signal input part of industrial computer (41) passes through remote signal and operation handle signal connection, the signal output part of industrial computer (41) passes through the wire and links to each other with light (32) in the travelling car (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322498400.7U CN220772468U (en) | 2023-09-14 | 2023-09-14 | Air leakage positioning device for bottom pipeline of train |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322498400.7U CN220772468U (en) | 2023-09-14 | 2023-09-14 | Air leakage positioning device for bottom pipeline of train |
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| Publication Number | Publication Date |
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| CN220772468U true CN220772468U (en) | 2024-04-12 |
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| CN202322498400.7U Active CN220772468U (en) | 2023-09-14 | 2023-09-14 | Air leakage positioning device for bottom pipeline of train |
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| CN (1) | CN220772468U (en) |
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2023
- 2023-09-14 CN CN202322498400.7U patent/CN220772468U/en active Active
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