CN114740510A - Operation and maintenance railway digital tamping method and system based on linear measurement - Google Patents

Operation and maintenance railway digital tamping method and system based on linear measurement Download PDF

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Publication number
CN114740510A
CN114740510A CN202110666957.XA CN202110666957A CN114740510A CN 114740510 A CN114740510 A CN 114740510A CN 202110666957 A CN202110666957 A CN 202110666957A CN 114740510 A CN114740510 A CN 114740510A
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China
Prior art keywords
tamping
track
data
measurement
position deviation
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CN202110666957.XA
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Chinese (zh)
Inventor
叶阳升
蔡德钩
韩自力
楼梁伟
王晓凯
王鹏
陈云峰
盛世勇
时瑾
张雨潇
倪国华
姚建平
魏少伟
杨立光
何复寿
张也
叶晓宇
石越峰
林佳木
李吉亮
杨伟利
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Beijing Jiaotong University
China Academy of Railway Sciences Corp Ltd CARS
Railway Engineering Research Institute of CARS
Beijing Tieke Special Engineering Technology Co Ltd
China Railway Lanzhou Group Co Ltd
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Beijing Jiaotong University
China Academy of Railway Sciences Corp Ltd CARS
Railway Engineering Research Institute of CARS
Beijing Tieke Special Engineering Technology Co Ltd
China Railway Lanzhou Group Co Ltd
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Priority to CN202110666957.XA priority Critical patent/CN114740510A/en
Publication of CN114740510A publication Critical patent/CN114740510A/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/06Systems determining position data of a target
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01CMEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/10Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration
    • G01C21/12Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning
    • G01C21/16Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning by integrating acceleration or speed, i.e. inertial navigation
    • G01C21/165Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning by integrating acceleration or speed, i.e. inertial navigation combined with non-inertial navigation instruments
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S19/00Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/38Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
    • G01S19/39Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/42Determining position

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  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Automation & Control Theory (AREA)
  • Machines For Laying And Maintaining Railways (AREA)

Abstract

The invention discloses a method and a system for digital tamping of an operation and maintenance railway based on linear measurement. Wherein, the method comprises the following steps: acquiring control network data; generating position deviation data according to the control network data; formulating a fine tamping scheme according to the position deviation data; and executing the operation task according to the fine tamping scheme. The invention solves the technical problems that the operation mode in the prior art has no track accurate measurement data support, the long wave irregularity control and the linear geometric parameter recovery can not achieve ideal effects, and the long wave smoothness can not be controlled by adopting a relative measurement of a track detector or a chord measurement maintenance mode of a large machine.

Description

Operation and maintenance railway digital tamping method and system based on linear measurement
Technical Field
The invention relates to the technical field of railway engineering, in particular to a method and a system for digital tamping of an operation and maintenance railway based on linear measurement.
Background
The primary condition for the safety and comfort of railway train operation is to ensure high smoothness of the track. Therefore, during railway maintenance, the track alignment must have very precise absolute and relative compliance with geometric parameters. The requirement of the ballast railway on the smoothness of the track is more strict, the precise maintenance of large-scale road maintenance machinery is used as a main measure for improving the state of the ballast railway, the traditional operation mode is not supported by track precise measurement data, and the long-wave irregularity control and the recovery of linear geometric parameters can not achieve ideal effects. The long wave cannot be controlled to be smooth by adopting a relative measurement mode of a track detector or a chord measurement and maintenance mode of a large machine, and a good effect cannot be achieved. Often, the operation needs to be performed for multiple times to reach the expected value, the maintenance cycle of the state of the tamped line is short, and the ballast is degraded due to the tamping operation for multiple times, which is not beneficial to maintaining the overall stability of the track.
In order to make up for the defects of traditional track maintenance, a large amount of researches are conducted on a fine measurement and tamping system of a ballast railway in combination with practices, and the idea of guiding the tamping of a large machine by the fine measurement of the track is preliminarily formed by analyzing and researching the problems of control network construction, a track inspection instrument, tamping scheme design, a tamping operation mechanism of the large machine and the like. Although the tamping effect can be improved through a series of researches, a standardized technical system is lacked, the TQI value is difficult to effectively reduce, and the influence of track irregularity is controlled.
In view of the above problems, no effective solution has been proposed.
Disclosure of Invention
The embodiment of the invention provides a digitized tamping method and a digitized tamping system for an operation and maintenance railway based on linear measurement, and solves the technical problems that an operation mode in the prior art is not supported by track accurate measurement data, the ideal effects of long wave irregularity control and linear geometric parameter recovery cannot be achieved, and meanwhile, the long wave smoothness cannot be controlled by adopting a relative measurement of a track detector or a chord measurement and maintenance mode of a large machine.
According to an aspect of the embodiment of the invention, a digital tamping method for an operation and maintenance railway based on linear measurement is provided, and comprises the following steps: acquiring control network data; generating position deviation data according to the control network data; formulating a fine tamping scheme according to the position deviation data; and executing the operation task according to the fine tamping scheme.
Optionally, after generating the position deviation data according to the control network data, the method further includes: and transmitting the position deviation data to a smoothness optimization end.
Optionally, the generating position deviation data according to the control network data includes: generating position deviation data according to a preset method, wherein the preset method comprises the following steps: satellite positioning, laser positioning, inertial measurement.
Optionally, the job task includes: controlling the track irregularity condition of preset parameters, wherein the preset parameters comprise: track, height, level, triangular pits.
According to another aspect of the embodiments of the present invention, there is also provided a digital tamping system for an operation and maintenance railway based on linear measurement, including: the acquisition module is used for acquiring control network data; the generating module is used for generating position deviation data according to the control network data; the formulating module is used for formulating a fine tamping scheme according to the position deviation data; and the execution module is used for executing the operation task according to the precise tamping scheme.
Optionally, the system further includes: and the transmitting module is used for transmitting the position deviation data to the smoothness optimizing end.
Optionally, the generating position deviation data according to the control network data includes: generating position deviation data according to a preset method, wherein the preset method comprises the following steps: satellite positioning, laser positioning, inertial measurement.
Optionally, the job task includes: controlling the track irregularity condition of preset parameters, wherein the preset parameters comprise: track, height, level, triangular pits.
According to another aspect of the embodiment of the invention, a non-volatile storage medium is further provided, and the non-volatile storage medium comprises a stored program, wherein the program is used for controlling equipment where the non-volatile storage medium is located to execute a digital tamping method for the operation and maintenance railway based on linear measurement.
According to another aspect of the embodiments of the present invention, there is also provided an electronic apparatus, including a processor and a memory; the memory is used for storing computer readable instructions, and the processor is used for executing the computer readable instructions, wherein the computer readable instructions are executed for executing a digital tamping method of an operation and maintenance railway based on linear measurement.
According to the intelligent precise measurement and tamping technical system for the ballast-operated railway track, provided by the invention, the original control network which is continuously distributed in the whole line is optimized into a mixed control network with the characteristics of high-precision control of a key zone, special design of a difficult zone and no network distribution of a general zone by optimizing a three-level control network into a two-level control network. The rapid orbit measurement instrument combining the satellite positioning, the laser positioning instrument and the inertial measurement is adopted, so that the field measurement speed is improved by 3-4 times, the precision meets the standard requirement, and the orbit measurement requirements of different environmental sections are met through the combined application of different measurement system modules. Fitting actual linear shapes through precisely measured data scatter points, accurately identifying the line elements of the flat longitudinal section, considering the limits of structures and equipment, and reconstructing the flat longitudinal section of the line; secondly, based on the control of a string of 10m and a string of 2mm and a string of 70m and a string of 4mm, carrying out smoothness calculation adjustment; and finally, comparing the difference between the operation effect of the large machine and the scheme according to the characteristics of the large machine, performing large data regression analysis, calculating an adjustment coefficient, formulating an optimal precise tamping scheme, automatically importing the optimal precise tamping scheme into an ALC (automatic level control) system of the large machine, and realizing intelligent tamping operation. By applying a control network, a track inspection tester, a tamping car and other large maintenance machines and detection equipment, an intelligent energy-based precise measurement and tamping technical system for operating a ballast railway is formed, the existing railway network building and measurement efficiency is effectively improved, the manufacturing cost is greatly reduced, the irregularity of medium and long waves can be effectively controlled, the line holding capacity is enhanced, and the maintenance period is prolonged.
In the embodiment of the invention, the control network data is obtained; generating position deviation data according to the control network data; formulating a fine tamping scheme according to the position deviation data; according to the precise tamping scheme, the mode of executing the operation task solves the technical problems that the operation mode in the prior art is not supported by rail precise measurement data, the long wave irregularity control and the recovery of linear geometric parameters can not achieve ideal effects, and the long wave smoothness can not be controlled by adopting a mode of relatively measuring by a rail detector or measuring and maintaining by the string of the large machine.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a schematic diagram of a digitized tamping work mechanism of an operation and maintenance railway based on linear measurement according to an embodiment of the invention;
FIG. 2 is a schematic diagram of an operation mode of a digital tamping system of an operation and maintenance railway based on linear measurement according to an embodiment of the invention;
fig. 3 is a flowchart of a digitized tamping method for an operation and maintenance railway based on linear measurement according to an embodiment of the present invention;
fig. 4 is a block diagram of a digital tamping system for an operation and maintenance railway based on linear measurement according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those 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.
According to an embodiment of the present invention, there is provided a method embodiment of digital tamping method for an operation and maintenance railway based on linear measurement, it is noted that the steps shown in the flowchart of the drawings may be executed in a computer system such as a set of computer executable instructions, and that although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in an order different from the order shown.
Example one
Fig. 3 is a flowchart of a digital tamping method for an operation and maintenance railway based on linear measurement according to an embodiment of the present invention, and as shown in fig. 3, the method includes the following steps:
step S302, control network data is obtained.
Specifically, the invention provides an intelligent precise measurement and tamping technical system for a ballast railway track. The track leveling device comprises control network measurement, a track inspection instrument, track smoothness optimization software and a tamping machine. On the basis of two-stage net distribution control, a multi-mode track inspection tester with satellite positioning, laser positioning and inertia measurement is adopted to carry out track accurate measurement, a scientific scheme is established by analyzing track accurate measurement data, the scheme is directly input into a large machine ALC system to guide field operation, accurate track tamping is realized, the line state meets the high smoothness requirement, and a standardized system is established to realize high-precision and high-efficiency tamping. The four stages jointly form a precision measurement and tamping standard operation flow of a technical system, wherein the working mechanism of the technical system comprises: control net construction → track measurement → fine tamping scheme → large tamping machine.
And step S304, measuring the geometrical state of the track according to the control network data to generate position deviation data.
Specifically, the orbit is precisely measured to generate position deviation data.
Optionally, the generating position deviation data according to the control network data includes: generating position deviation data according to a preset method, wherein the preset method comprises the following steps: satellite positioning, laser positioning, inertial measurement.
Optionally, after generating the position deviation data according to the control network data, the method further includes: and transmitting the position deviation data to a smoothness optimization end.
Furthermore, the control network is constructed by adopting a two-stage control network system, and a basic control network with the interval of 20km is arranged at the first stage, so that the overall control of the line position is realized; and the second stage adopts different fixed pile track control networks of a lead, a station 6 point pair and the like according to different external environments, so that the requirement of local track measurement and positioning is met.
And S306, formulating a fine tamping scheme according to the position deviation data.
Furthermore, the track measurement adopts a relative + absolute multi-mode rapid track measuring instrument, accurately collects the geometric shape and position data of the internal and external tracks, and transmits the data to track smoothness optimization software.
And further, the precise tamping scheme is that track smoothness optimization software is applied to formulate a large-machine operation precise tamping scheme, the scheme is based on track precise measurement data, medium-long wave irregularity control is taken as a core, factors such as design standards, precise tamping control and operation management are fully considered, an efficient and stable automatic reconstruction method for the flat and longitudinal sections of the line is established, a scheme value is transmitted to a large tamping vehicle through a computer, a large road maintenance machine is guided to complete precise maintenance operation, and the track smoothness state is improved.
And step S308, executing an operation task according to the refining scheme.
Optionally, the job task includes: controlling the track irregularity condition of preset parameters, wherein the preset parameters comprise: track, height, level, triangular pits.
Specifically, the large tamping machine completes track lifting, leveling and track shifting smoothing operation by adopting a large tamping vehicle, and controls the irregularity of tracks such as a track direction, a height, a level, a triangular pit and the like. The operator strictly carries out tamping operation according to each standardized program, and the tamping adjustment amount refers to a scheme value, so that the track smoothness state reaches an expected target.
As shown in fig. 1 and 2, an embodiment of the invention provides an intelligent precision measurement and tamping system for operating a ballast track, and the system comprises ride comfort optimization software 1, control network construction 2, a track measuring instrument 3, a large tamping car 4, and different mechanical devices which are coordinated and matched to perform operation, so as to form a precision measurement and tamping operation system for an operating railway. Another application implementation operation process of the embodiment of the invention is as follows:
firstly, establishing two levels of control networks, wherein one level is a basic control network and is distributed in a full line; and the second level is a fixed pile track control network which is locally arranged according to different line environments. A fixed pile track control network is not arranged in the conventional section, and a primary foundation control network is used as a reference station for operation; in a weak satellite signal area, a satellite positioning fixing pile orbit control network with the interval of 1km is arranged, and a four-equal satellite positioning observation and joint measurement foundation control network is adopted. In a station turnout area, 6 pairs of fixed pile track control networks are arranged, and the distance between double-track railways is 50-120 m; and (3) laying a wire fixing pile track control network with the side length of 200-400 m in a tunnel or a satellite-free signal section with the length of more than 400 m.
And (3) accurately measuring the geometric shape and position data of the track by using a rapid track inspection tester 3 combining GNSS (global navigation satellite system), laser positioning instrument and inertial measurement to obtain a deviation value of an actual line and a design position, and transmitting the deviation value to the ride comfort optimization software 1.
Specifically, linear design parameters such as start and end point coordinates, a flat curve radius, a vertical curve radius, a gentle curve length and other information are input into the track measuring instrument 3, and whether project attributes and equipment parameters meet measurement requirements or not is checked, so that accuracy and reliability of a measurement result are ensured.
In addition, the laser positioning device of the track measuring instrument 3 is used for aligning the prism target to determine the three-dimensional coordinates of the control network, or the GNSS mobile station captures the space coordinates, and the space coordinates are used as control points to introduce absolute coordinate data into the measuring system. Between adjacent control points, equipment such as a high-precision inertial navigation unit and a track gauge sensor can automatically collect information such as horizontal distance, rail top height, measurement inclination angle and track gauge to obtain attitude measurement data taking equipment coordinates as a reference. And the track measuring instrument 3 performs data fusion on the attitude data and the absolute coordinates in the system to generate position data based on a railway track construction coordinate system, compares the actual line position with the corresponding designed line position to obtain a horizontal and vertical section deviation value between the actual line position and the designed line position, and transmits the data to the smoothness optimization software 1 to provide a basis for the formulation of a precision tamping scheme. The smoothness optimization software 1 evaluates the state of a line based on track precision measurement data, formulates a precision tamping scheme according to a control standard for vector and vector distance difference in railway measurement specifications, guides a large tamping machine to rectify track irregularity, and automatically records the operation scheme value of each mileage point into the large tamping machine through a computer system. The large tamping car 4 operates under the guidance of the precise tamping scheme value, and can effectively control the unevenness of the tracks such as track direction, height, level, triangular pits and the like.
Therefore, according to the customized requirements of users, the embodiment of the invention comprehensively applies the ride comfort optimization software 1, the control network construction 2, the track measuring instrument 3, the large tamping car 4 and other large maintenance machines and detection equipment to form a standard working mechanism for precise measurement and tamping, so that the ride comfort state of the ballast railway track can be effectively improved, the working efficiency and tamping quality can be fully ensured, the labor cost can be saved, and the human errors can be avoided.
By the embodiment, the technical problems that an operation mode in the prior art is not supported by track accurate measurement data, the long wave irregularity control and the recovery of linear geometric parameters cannot achieve ideal effects, and the long wave smoothness cannot be controlled by adopting a relative measurement mode of a track detector or a chord measurement maintenance mode of a large machine are solved.
Example two
Fig. 4 is a block diagram of a digital tamping system for an operation and maintenance railway based on linear measurement according to an embodiment of the present invention, as shown in fig. 4, the system includes:
step S302, control network data is obtained.
Specifically, the invention provides an intelligent precise measurement and tamping technical system for a ballast railway track. The track leveling device comprises control network measurement, a track inspection instrument, track smoothness optimization software and a tamping machine. On the basis of two-stage network distribution control, a multi-mode track inspection tester with satellite positioning, laser positioning and inertial measurement is adopted to carry out track accurate measurement, a scheme is scientifically formulated by utilizing big data analysis, and the scheme is directly input into a big machine ALC system to guide field operation, so that track accurate tamping is realized, the line state meets the high smoothness requirement, and a standardized system is established to realize high-precision and high-efficiency tamping. The four stages jointly form a precision measurement and tamping standard operation flow of a technical system, wherein the working mechanism of the technical system comprises: control net construction → track measurement → fine tamping scheme → large tamping machine.
And step S304, generating position deviation data according to the control network data.
Optionally, the generating position deviation data according to the control network data includes: generating position deviation data according to a preset method, wherein the preset method comprises the following steps: satellite positioning, laser positioning, inertial measurement.
Optionally, after generating the position deviation data according to the control network data, the method further includes: and transmitting the position deviation data to a smoothness optimization end.
Furthermore, the control network is constructed by adopting a two-stage control network system, and a basic control network with the interval of 20km is arranged at the first stage, so that the overall control of the line position is realized; the second level adopts different fixing pile control nets such as a lead, a station 6 point pair and the like according to different external environments, and the requirements of local track measurement and positioning are met.
And S306, formulating a refining and pounding scheme according to the position deviation data.
Furthermore, the track measurement adopts a 'relative + absolute' multi-mode rapid track measuring instrument, accurately collects the geometric shape and position data of the inner and outer tracks, and transmits the data to track smoothness optimization software.
And further, the precise tamping scheme is that track smoothness optimization software is applied to formulate a large-machine operation precise tamping scheme, the scheme is based on track precise measurement data, medium-long wave irregularity control is taken as a core, factors such as design standards, precise tamping control and operation management are fully considered, an efficient and stable automatic reconstruction method for the flat and longitudinal sections of the line is established, a scheme value is transmitted to a large tamping vehicle through a computer, a large road maintenance machine is guided to complete precise maintenance operation, and the track smoothness state is improved.
And step S308, executing the operation task according to the refining scheme.
Optionally, the job task includes: controlling the track irregularity condition of preset parameters, wherein the preset parameters comprise: track direction, high and low, horizontal and triangular pits.
Specifically, the large tamping machine completes track lifting, leveling and track shifting smoothing operation by using a large tamping vehicle, and controls the unevenness of the tracks such as the track direction, the height, the level, the triangular pits and the like. The operator strictly carries out tamping operation according to each standardized program, and the tamping adjustment amount refers to a scheme value, so that the track smoothness state reaches an expected target.
As shown in fig. 1 and fig. 2, an embodiment of the invention provides an intelligent precision-measuring and precision-tamping system for operating a ballast track, and the intelligent precision-measuring and precision-tamping system comprises ride comfort optimization software 1, a control network construction 2, a track measuring instrument 3, a large-scale tamping car 4, and different mechanical equipment which are coordinated and matched to carry out operation, so as to form a precision-measuring and precision-tamping operation system for an operating railway. Another application implementation operation process of the embodiment of the invention is as follows:
firstly, establishing two levels of control networks, wherein one level is a basic control network and is distributed in a full line; and the second level is a fixed pile track control network which is locally distributed according to different line environments. A fixed pile track control network is not arranged in the conventional section, and a primary foundation control network is used as a reference station for operation; in a satellite signal weak section, a satellite positioning fixing pile orbit control network with the distance of 1km is arranged, and a foundation control network is measured in a joint mode by adopting four equal satellite positioning observation. In a station turnout area, 6 pairs of fixed pile track control networks are arranged, and the distance between double-track railways is 50-120 m; and (3) laying a wire fixing pile track control network with the side length of 200-400 m in a tunnel or a satellite-free signal section with the length of more than 400 m.
And (3) accurately measuring the geometric shape and position data of the track by using a rapid track inspection tester 3 combining GNSS (global navigation satellite system), laser positioning instrument and inertial measurement to obtain a deviation value of an actual line and a design position, and transmitting the deviation value to the ride comfort optimization software 1.
Specifically, linear design parameters such as start and end point coordinates, a flat curve radius, a vertical curve radius, a gentle curve length and other information are input into the track measuring instrument 3, and whether project attributes and equipment parameters meet measurement requirements or not is checked, so that accuracy and reliability of a measurement result are ensured.
In addition, the laser positioning device of the track measuring instrument 3 is used for aligning the prism target to determine the three-dimensional coordinates of the control network, or the GNSS mobile station captures the space coordinates, and the space coordinates are used as control points to introduce absolute coordinate data into the measuring system. Between adjacent control points, the high-precision inertial navigation unit, the track gauge sensor and other equipment can automatically collect information such as horizontal distance, rail top height, measurement inclination angle and track gauge to obtain attitude measurement data with equipment coordinates as a reference. And the track measuring instrument 3 performs data fusion on the attitude data and the absolute coordinates in the system to generate position data based on a railway track construction coordinate system, compares the actual line position with the corresponding designed line position to obtain a horizontal and vertical section deviation value between the actual line position and the designed line position, and transmits the data to the smoothness optimization software 1 to provide a basis for the formulation of a precision tamping scheme. The smoothness optimization software 1 evaluates the state of a line based on track precision measurement data, formulates a precision tamping scheme according to a control standard for vector and vector distance difference in railway measurement specifications, guides a large tamping machine to rectify track irregularity, and automatically records the operation scheme value of each mileage point into the large tamping machine through a computer system. The large-scale tamping car 4 operates under the guidance of the precise tamping scheme value, and can effectively control the irregularity of the tracks such as track direction, height, level, triangular pits and the like.
Therefore, according to the customized requirements of users, the invention comprehensively applies the ride comfort optimization software 1, the control network construction 2, the track measuring instrument 3, the large tamping car 4 and other large maintenance machines and detection equipment to form a standard working mechanism for precise measurement and precise tamping, can effectively improve the ride comfort state of the ballast railway track, fully ensures the working efficiency and tamping quality, saves the labor cost and avoids human errors.
By the embodiment, the technical problems that an operation mode in the prior art is not supported by track accurate measurement data, the long wave irregularity control and the recovery of linear geometric parameters cannot achieve ideal effects, and the long wave smoothness cannot be controlled by adopting a relative measurement mode of a track detector or a chord measurement maintenance mode of a large machine are solved.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and amendments can be made without departing from the principle of the present invention, and these modifications and amendments should also be considered as the protection scope of the present invention.

Claims (10)

1. A digital tamping method for an operation and maintenance railway based on linear measurement is characterized by comprising the following steps:
acquiring control network data;
generating position deviation data according to the control network data;
formulating a fine tamping scheme according to the position deviation data;
and executing the operation task according to the fine tamping scheme.
2. The method of claim 1, wherein after said generating positional deviation data from said control net data, said method further comprises:
and transmitting the position deviation data to a smoothness optimization end.
3. The method of claim 1, wherein generating positional deviation data from the control net data comprises:
generating position deviation data according to a preset method, wherein the preset method comprises the following steps: satellite positioning, laser positioning, inertial measurement.
4. The method of claim 1, wherein the job task comprises: controlling the track irregularity condition of preset parameters, wherein the preset parameters comprise: track, height, level, triangular pits.
5. A digital tamping system of fortune dimension railway based on alignment measurement, its characterized in that includes:
the acquisition module is used for acquiring control network data;
the generating module is used for measuring the geometric state of the track according to the control network data so as to generate position deviation data;
the formulating module is used for formulating a fine tamping scheme according to the position deviation data;
and the execution module is used for executing the operation task according to the precise tamping scheme.
6. The system of claim 5, further comprising:
and the transmitting module is used for transmitting the position deviation data to the smoothness optimizing end.
7. The system of claim 5, wherein said generating positional deviation data from said control net data comprises:
generating position deviation data according to a preset method, wherein the preset method comprises the following steps: satellite positioning, laser positioning, inertial measurement.
8. The method of claim 1, wherein the job task comprises: controlling the track irregularity condition of preset parameters, wherein the preset parameters comprise: track, height, level, triangular pits.
9. A non-volatile storage medium, comprising a stored program, wherein the program when executed controls an apparatus in which the non-volatile storage medium is located to perform the method of any one of claims 1 to 4.
10. An electronic device comprising a processor and a memory; the memory has stored therein computer readable instructions for execution by the processor, wherein the computer readable instructions when executed perform the method of any one of claims 1 to 4.
CN202110666957.XA 2021-06-16 2021-06-16 Operation and maintenance railway digital tamping method and system based on linear measurement Pending CN114740510A (en)

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