Non-contact measuring method and system for track platform gauge based on total station

Abstract

The invention provides a non-contact measurement method and system for a rail platform gauge based on a total station. The method comprises the following steps: taking an initial coordinate as a measurement initial position; based on the measurement initial position, obtaining a first top surface coordinate and a first side surface coordinate of a downlink track, a second top surface coordinate and a second side surface coordinate of an uplink track of the track, and a station edge side surface coordinate opposite to the measurement initial position; based on the first top surface coordinates, the first side surface coordinates, the second top surface coordinates, the second side surface coordinates and the platform edge side surface coordinates, the track gauge, the track levelness, the near-track vertical deviation, the near-track transverse deviation, the center line transverse deviation, the center line vertical deviation and the center transverse deviation are calculated. The method is not limited by the skylight time limit, and the flexibility of platform limit measurement is improved. When the vehicle passes through the platform or stops on the platform, the distance between the platform and the vehicle is better controlled to be within a reasonable and safe range so as to ensure the safety of the vehicle and the platform.

Description

Technical Field

[0001] The present invention relates to the technical field of track platform clearance measurement, and particularly to a non-contact measurement method and system for track platform clearance based on a total station instrument. Background Art

[0002] The platform clearance refers to the contour dimension line that buildings, equipment and rolling stock cannot exceed each other on the line to ensure transportation safety. It includes two types: the building approach clearance and the rolling stock clearance, which are collectively referred to as the basic clearances of the railway. The building approach clearance is the contour line that buildings on both sides of the railway line are not allowed to intrude into, while the rolling stock clearance is the contour line that the rolling stock itself and the goods it loads are not allowed to exceed. A certain gap should be left between the two to ensure that the running rolling stock will not collide with the buildings along the line.

[0003] In high-speed railways, the measurement accuracy of the platform clearance plays an extremely important role in ensuring the safe transportation of the railway. The measurement of the high-speed rail platform clearance is not only related to the operation safety of high-speed rail locomotives, but also related to the personal safety of high-speed rail workers and passengers. During long-term operation, the load of the train on the track may cause changes in the geometric dimensions of the line, such as wear and deformation of the track; geological changes; track adjustment during maintenance; these changes may affect the platform clearance.

[0004] Relevant departments need to regularly detect the platform clearance to ensure that the platform and the track are at an appropriate safe distance. The measurement technologies for high-speed rail platform clearance include non-contact measurement methods and contact measurement methods. Although non-contact measurement methods such as laser measuring instruments have high accuracy, they have not been popularized due to their high price and high requirements for operators. At present, the main method for railway departments to measure the platform clearance is contact measurement, which is not only inefficient, time-consuming and laborious, but also during non-sky window time, due to the inability to enter the track, the platform clearance cannot be effectively measured. The laser measuring instrument also needs to enter the track to carry out the measurement work. Therefore, the existing platform clearance measurement methods are all restricted by the sky window time, and applications are very inconvenient because applications and approvals are required before the sky window. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a non-contact measurement method and system for track platform clearance based on a total station instrument to solve the deficiencies in the above-mentioned existing technologies.

[0006] In the first aspect, the present invention provides a non-contact measurement method for track platform clearance based on a total station instrument, and the method includes:

[0007] Obtain the coordinate points of the observation platform and the track to get the initial point coordinates, and obtain the coordinates of the first track point and the second track point on the downlink track of the track with the initial point coordinates to obtain the first coordinate and the second coordinate, and obtain the angle between the first track point and the preset direction and the angle between the second track point and the initial direction to obtain the first angle and the second angle;

[0008] Calculate the initial coordinates of the contact point between the initial direction and the downlink track based on the first coordinate, the second coordinate, the first angle, and the second angle, and use the initial coordinates as the measured initial position;

[0009] Obtain the first top surface coordinate, the first side surface coordinate of the downlink track, the second top surface coordinate, the second side surface coordinate of the uplink track of the track, and the side surface coordinate of the platform edge opposite the measured initial position based on the measured initial position;

[0010] Calculate the gauge, track level, near-rail vertical deviation, near-rail lateral deviation, centerline lateral deviation, centerline vertical deviation, and center lateral deviation based on the first top surface coordinate, the first side surface coordinate, the second top surface coordinate, the second side surface coordinate, and the side surface coordinate of the platform edge.

[0011] Compared with the prior art, the beneficial effects of the present invention are: the measured initial position calculated by the first coordinate, the second coordinate, the first angle, and the second angle, and the gauge, track level, near-rail vertical deviation, near-rail lateral deviation, centerline lateral deviation, centerline vertical deviation, and center lateral deviation are calculated by the first top surface coordinate, the first side surface coordinate, the second top surface coordinate, the second side surface coordinate, and the side surface coordinate of the platform edge obtained from the measured initial position, so that the flexibility of platform clearance measurement can be improved without being restricted by the skylight time. Better control the distance between the platform and the vehicle within a reasonable and safe range when the vehicle passes through or docks at the platform to ensure the safety of the vehicle and the platform.

[0012] Further, after the step of obtaining the first angle and the second angle, the method further includes:

[0013] Calculate a first measurement reference point and a second measurement reference point based on the first coordinate, the second coordinate, the first angle, and the second angle, where the first measurement reference point is located on the uplink platform and the second measurement reference point is located on the downlink platform;

[0014] Obtain the first top surface coordinate, the first side surface coordinate of the downlink track, the second top surface coordinate, and the second side surface coordinate of the uplink track of the track based on the first measurement reference point;

[0015] Obtain the third top surface coordinates, the third side coordinates of the downlink track, the fourth top surface coordinates of the uplink track of the track, and the fourth side coordinates based on the second measurement reference point;

[0016] Calculate the gauge, track level, near-rail vertical deviation, near-rail transverse deviation, centerline transverse deviation, centerline vertical deviation, and center transverse deviation based on the first top surface coordinates, the first side coordinates, the second top surface coordinates, the second side coordinates, the third top surface coordinates, the third side coordinates, the fourth top surface coordinates, and the fourth side coordinates.

[0017] Further, the calculation expression for the gauge is:

[0018]

[0019] In the formula, d represents the gauge, X C1 、Y C1 、Z C1 respectively represent the abscissa, ordinate, and vertical coordinate of the first side coordinates, X C2 、Y C2 、Z C2 respectively represent the abscissa, ordinate, and vertical coordinate of the second side coordinates, X D1 、Y D1 、Z D1 respectively represent the abscissa, ordinate, and vertical coordinate of the first top surface coordinates.

[0020] Further, the calculation expression for the track level is:

[0021]

[0022] In the formula, sp represents the track level, X D1 、Y D1 、Z D1 respectively represent the abscissa, ordinate, and vertical coordinate of the first top surface coordinates, X D2 、Y D2 、Z D2 respectively represent the abscissa, ordinate, and vertical coordinate of the second top surface coordinates.

[0023] Further, the calculation expression for the near-rail vertical deviation is:

[0024] C P =Z3 - Z D2 ;

[0025] In the formula, C P represents the near-rail vertical deviation, Z D2 represents the vertical coordinate of the second top surface coordinates, and Z3 represents the vertical coordinate of the platform edge side coordinates.

[0026] Further, the calculation expression of the near-rail lateral deviation is as follows:

[0027] H P = X3 - X C2 ;

[0028] In the formula, H P represents the near-rail lateral deviation, X C2 represents the abscissa of the second side coordinate, and X3 represents the abscissa of the side coordinate of the platform edge.

[0029] Further, the calculation expression of the center-line lateral deviation is as follows:

[0030]

[0031]

[0032] In the formula, represents the center-line lateral deviation, X D1 , X D2 respectively represent the abscissa of the first top surface coordinate and the abscissa of the second top surface coordinate, X LC represents the abscissa of the center line, and X3 represents the abscissa of the side coordinate of the platform edge.

[0033] Further, the calculation expression of the center-line vertical deviation is as follows:

[0034]

[0035]

[0036] In the formula, LC CP represents the center-line vertical deviation, Z D1 , Z D2 respectively represent the ordinate of the first top surface coordinate and the ordinate of the second top surface coordinate, Z LC represents the ordinate of the center line, and Z3 represents the ordinate of the side coordinate of the platform edge.

[0037] Second, the present invention also provides a total station-based non-contact measurement system for the track platform clearance, and the system includes:

[0038] A first acquisition module, configured to observe the coordinate points of the platform and the track to obtain the initial point coordinates, and obtain the coordinates of the first track point and the second track point on the down-line track of the track with the initial point coordinates, so as to obtain the first coordinate and the second coordinate, and obtain the angle between the first track point and the preset direction and the angle between the second track point and the initial direction, so as to obtain the first angle and the second angle;

[0039] The first calculation module is configured to calculate the initial coordinates of the contact point between the initial direction and the down-line track based on the first coordinate, the second coordinate, the first included angle, and the second included angle, and use the initial coordinates as the measured initial position.

[0040] The second acquisition module is configured to acquire the first top surface coordinate, the first side surface coordinate of the down-line track, the second top surface coordinate, the second side surface coordinate of the up-line track of the track, and the side surface coordinate of the platform edge opposite to the measured initial position based on the measured initial position.

[0041] The second calculation module is configured to calculate the gauge, the track level, the near-rail vertical deviation, the near-rail lateral deviation, the center-line lateral deviation, the center-line vertical deviation, and the center lateral deviation based on the first top surface coordinate, the first side surface coordinate, the second top surface coordinate, the second side surface coordinate, and the side surface coordinate of the platform edge. Description of the Drawings

[0042] Figure 1 It is a flowchart of the non-contact measurement method for the track platform clearance based on a total station in the first embodiment of the present invention.

[0043] Figure 2 It is a schematic diagram of the initial direction during the total station measurement in the first embodiment of the present invention.

[0044] Figure 3 It is a schematic diagram of the structure during the gauge calculation in the first embodiment of the present invention.

[0045] Figure 4 It is a schematic diagram of the structure during the track level calculation in the first embodiment of the present invention.

[0046] Figure 5 It is a schematic diagram of the structure during the calculation of the near-rail vertical deviation and the near-rail lateral deviation in the first embodiment of the present invention.

[0047] Figure 6 It is a schematic diagram of the structure during the calculation of the center-line lateral deviation and the center-line vertical deviation in the first embodiment of the present invention.

[0048] Figure 7 It is a flowchart of the non-contact measurement method for the track platform clearance based on a total station in the second embodiment of the present invention.

[0049] Figure 8 It is a schematic diagram of the structure during the gauge calculation in the second embodiment of the present invention Figure 1 ;

[0050] Figure 9 It is a schematic diagram of the structure during the gauge calculation in the second embodiment of the present invention Figure 2 ;

[0051] Figure 10This is the structural block diagram of the non-contact measurement system for the track platform clearance based on a total station in the third embodiment of the present invention.

[0052] Description of main component symbols:

[0053] 10. First acquisition module; 20. First calculation module; 30. Second acquisition module; 40. Second calculation module.

[0054] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. Specific embodiments

[0055] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

[0056] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0057] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. The terms used herein in the description of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0058] Embodiment 1

[0059] Please refer to Figure 1 , which shows the non-contact measurement method for the track platform clearance based on a total station in the first embodiment of the present invention. The method includes steps S1 to S4:

[0060] S1. Observe the coordinate points of the platform and the track to obtain the initial point coordinates, and obtain the coordinates of the first track point and the second track point on the down-line track of the track with the initial point coordinates to obtain the first coordinate and the second coordinate, and obtain the included angle between the first track point and the preset direction and the included angle between the second track point and the initial direction to obtain the first included angle and the second included angle;

[0061] It should be noted that, without being restricted by the skylight time, on the platform side, when the total station is in a leveled state, the coordinates of the platform and the track points are observed. Among them, for the observation of the platform coordinate points, a prism (parameters: constant 17.5 mm, outer diameter 45 mm, height 35 mm) is required. The prism is placed on the measuring block (length 80 mm, width 65 mm, thickness 20 mm) and assembled firmly.

[0062] It can be understood that during measurement, the total station of the system equipment needs to be initialized. Taking the direction perpendicular to the track as the initial direction, the total station observes the first point and the second point on the downlink track, so as to obtain the first coordinate and the second coordinate. In this embodiment, the first coordinate is (X1, Y1, Z1), and the second coordinate is (X2, Y2, Z2).

[0063] S2. Calculate the initial coordinates of the contact point between the initial direction and the downlink track based on the first coordinate, the second coordinate, the first included angle, and the second included angle, and use the initial coordinates as the measurement initial position.

[0064] As Figure 2 shown, the included angle between the first track point and the preset direction is a1, the included angle between the second track point and the initial direction is a2, and a1 + a2 = a3. Figure 2 In

[0065]

[0066] In the formula, X O′ 、Y O′ 、Z O′ respectively represent the abscissa, ordinate, and vertical coordinate of the initial coordinates. X1, Y1, Z1 respectively represent the abscissa, ordinate, and vertical coordinate of the first point coordinates. X2, Y2, Z2 respectively represent the abscissa, ordinate, and vertical coordinate of the second point coordinates. a1 represents the first included angle, and a3 represents the sum of the first included angle and the second included angle.

[0067] It is worth noting that Among them, L 12 represents Figure 2 the distance between point 1 and point 2 in

[0068] After calculating the initial coordinates, the total station automatically rotates to this position, that is, the measurement initial position is set.

[0069] S3. Obtain the first top surface coordinates, the first side surface coordinates of the down-line track, the second top surface coordinates, the second side surface coordinates of the up-line track of the track, and the side surface coordinates of the platform edge opposite to the measurement initial position based on the measurement initial position;

[0070] It can be understood that the total station observes the first top surface coordinates, the first side surface coordinates on the down-line track, the second top surface coordinates, the second side surface coordinates of the up-line track of the track, and the side surface coordinates of the platform edge opposite to the measurement initial position on the platform side close to the up-line track. In this embodiment, the first top surface coordinates are represented as (X D1 , Y D1 , Z D1 ), the first side surface coordinates are represented as (X C1 , Y C1 , Z V1 ), the second top surface coordinates are represented as (X D2 , Y D2 , Z D2 ), the second side surface coordinates are represented as (X C2 , Y C2 , Z C2 ), and the side surface coordinates of the platform edge are represented as (X C3 , Y C3 , Z C3 ).

[0071] S4. Calculate the gauge, track level, near-rail vertical deviation, near-rail lateral deviation, centerline lateral deviation, centerline vertical deviation, and center lateral deviation based on the first top surface coordinates, the first side surface coordinates, the second top surface coordinates, the second side surface coordinates, and the side surface coordinates of the platform edge;

[0072] It should be noted that in this embodiment, the calculation expression of the gauge is:

[0073]

[0074] In the formula, d represents the gauge, X C1 , Y C1 , Z C1 respectively represent the abscissa, ordinate, and vertical coordinate of the first side surface coordinates, X C2 , Y C2 , Z C2 respectively represent the abscissa, ordinate, and vertical coordinate of the second side surface coordinates, X D1 , Y D1 , Z D1 respectively represent the abscissa, ordinate, and vertical coordinate of the first top surface coordinates, as specifically shown in Figure 3 ;

[0075] The calculation expression of the track level is:

[0076]

[0077] Wherein, sp represents the track levelness, X D1 , Y D1 , Z D1 respectively represent the abscissa, ordinate, and vertical coordinate of the first top surface coordinate, X D2 , Y D2 , Z D2 respectively represent the abscissa, ordinate, and vertical coordinate of the second top surface coordinate, specifically as Figure 4 shown;

[0078] The calculation expression of the near - track vertical deviation is:

[0079] C P = Z3 - Z D2 ;

[0080] Wherein, C P represents the near - track vertical deviation, Z D2 represents the vertical coordinate of the second top surface coordinate, Z3 represents the vertical coordinate of the platform edge side coordinate, specifically as Figure 5 shown;

[0081] The calculation expression of the near - track horizontal deviation is:

[0082] H P = X3 - X C2 ;

[0083] Wherein, H P represents the near - track horizontal deviation, X C2 represents the abscissa of the second side coordinate, X3 represents the abscissa of the platform edge side coordinate, specifically as Figure 5 shown;

[0084] The calculation expression of the center - line horizontal deviation is:

[0085]

[0086] Wherein, represents the center - line horizontal deviation, X D1 , X D2 respectively represent the abscissa of the first top surface coordinate, the abscissa of the second top surface coordinate, X LC represents the abscissa of the center line, X3 represents the abscissa of the platform edge side coordinate, specifically as Figure 6 shown;

[0087] The calculation expression of the center - line vertical deviation is:

[0088]

[0089]

[0090] Wherein, LC CP represents the vertical deviation of the center line, and Z D1 , Z D2 respectively represent the vertical coordinates of the first top surface coordinate and the vertical coordinates of the second top surface coordinate, and Z LC represents the vertical coordinate of the center line, Z3 represents the vertical coordinate of the side coordinate of the platform edge, specifically as Figure 6 shown.

[0091] In summary, in the above embodiments of the present invention, the non-contact measurement method for the track platform clearance based on the total station calculates the initial measurement position through the first coordinate, the second coordinate, the first angle, and the second angle, and calculates the gauge, track level, near-rail vertical deviation, near-rail lateral deviation, center line lateral deviation, center line vertical deviation, and center lateral deviation through the first top surface coordinate, the first side coordinate, the second top surface coordinate, the second side coordinate, and the side coordinate of the platform edge obtained from the initial measurement position. Therefore, it can be unrestricted by the skylight time limit and improve the flexibility of platform clearance measurement. It can better control the distance between the platform and the vehicle within a reasonable and safe range when the vehicle passes through or docks at the platform to ensure the safety of the vehicle and the platform.

[0092] Embodiment 2

[0093] Please refer to Figure 7 , which shows the non-contact measurement method for the track platform clearance based on the total station in the second embodiment of the present invention. The method includes steps S1 to S5:

[0094] S1, taking the direction perpendicular to the track as the initial direction, obtaining the coordinates of the first track point and the second track point on the down-line track of the track to obtain the first coordinate and the second coordinate, and obtaining the angle between the first track point and the preset direction and the angle between the second track point and the initial direction to obtain the first angle and the second angle;

[0095] S2, calculating the first measurement reference point and the second measurement reference point based on the first coordinate, the second coordinate, the first angle, and the second angle, wherein the first measurement reference point is located on the up-line platform, and the second measurement reference point is located on the down-line platform;

[0096] S3, obtaining the first top surface coordinate and the first side coordinate of the down-line track and the second top surface coordinate and the second side coordinate of the up-line track of the track based on the first measurement reference point;

[0097] S4. Obtain the third top surface coordinates, third side coordinates of the downlink track, fourth top surface coordinates of the uplink track of the track, and fourth side coordinates based on the second measurement reference point;

[0098] It can be understood that in this embodiment, the total station is respectively close to the uplink track and the downlink track, so that the first measurement reference point and the second measurement reference point can be obtained.

[0099] It is worth noting that in this embodiment, the first top surface coordinates are expressed as (X D1 , Y D1 , Z D1 ), the first side coordinates are expressed as (X C1 , Y C1 , Z C1 ), the second top surface coordinates are expressed as (X D2 , Y D2 , Z D2 ), the second side coordinates are expressed as (X C2 , Y C2 , Z C2 ), the third top surface coordinates are expressed as (X D3 , Y D3 , Z D3 ), the third side coordinates are expressed as (X C3 , Y C3 , Z C3 ), the fourth top surface coordinates are expressed as (X D4 , Y D4 , Z D4 ), and the fourth side coordinates are expressed as (X C4 , Y C4 , Z C4 );

[0100] It should be explained that X D1 , Y D1 , Z D1 respectively represent the abscissa, ordinate, and vertical coordinate of the first top surface coordinates, X C1 , Y C1 , Z C1 respectively represent the abscissa, ordinate, and vertical coordinate of the first side coordinates, X D2 , Y D2 , Z D2 respectively represent the abscissa, ordinate, and vertical coordinate of the second top surface coordinates, X C2 , Y C2 , Z C2 respectively represent the abscissa, ordinate, and vertical coordinate of the second side coordinates, X D3 , Y D3 , Z D3respectively represent the abscissa, ordinate, and vertical coordinate of the third top surface coordinate, X C3 , Y C3 , Z C3 respectively represent the abscissa, ordinate, and vertical coordinate of the third side surface coordinate, X D4 , Y D4 , Z D4 respectively represent the abscissa, ordinate, and vertical coordinate of the fourth top surface coordinate, X C4 , Y C4 , Z C4 respectively represent the abscissa, ordinate, and vertical coordinate of the fourth side surface coordinate.

[0101] S5. Calculate the gauge, track level, near-rail vertical deviation, near-rail lateral deviation, centerline lateral deviation, centerline vertical deviation, and center lateral deviation based on the first top surface coordinate, the first side surface coordinate, the second top surface coordinate, the second side surface coordinate, the third top surface coordinate, the third side surface coordinate, the fourth top surface coordinate, and the fourth side surface coordinate;

[0102] It should be noted that when the total station is located at the first measurement reference point, in this embodiment, specifically as Figure 8 shown, the calculation expression of the gauge is:

[0103]

[0104] In this embodiment, the calculation expression of the track level is:

[0105]

[0106] In this embodiment, the calculation expression of the near-rail vertical deviation is:

[0107] C P = Z2 - Z D4 ;

[0108] In the formula, Z2 represents the vertical coordinate of the second measurement reference point;

[0109] In this embodiment, the calculation expression of the near-rail lateral deviation is:

[0110]

[0111]

[0112] In the formula, X2 represents the horizontal coordinate of the second measurement reference point;

[0113] In addition, in this embodiment, the expression of the centerline coordinate is:

[0114]

[0115]

[0116]

[0117] In the formula, X LC represents the abscissa of the center line coordinate, Y LC represents the ordinate of the center line coordinate, Z LC represents the vertical coordinate of the center line coordinate;

[0118] In this embodiment, the calculation expression of the center line horizontal deviation is:

[0119] LC HP = X2 - X LC ;

[0120] In this embodiment, the calculation expression of the center line vertical deviation is:

[0121] LC CP = Z2 - Z LC ;

[0122] It should be noted that when the total station is located at the second measurement reference point, in this embodiment, specifically as Figure 9 shown, the calculation expression of the gauge is:

[0123]

[0124] In this embodiment, the calculation expression of the track levelness is:

[0125]

[0126] In this embodiment, the calculation expression of the near-rail vertical deviation is:

[0127] C P = Z1 - Z D1 ;

[0128] In the formula, Z1 represents the vertical coordinate of the first measurement reference point;

[0129] In this embodiment, the calculation expression of the near-rail horizontal deviation is:

[0130]

[0131] In the formula, X1 represents the horizontal coordinate of the first measurement reference point;

[0132] In addition, in this embodiment, the expression of the center line coordinate is:

[0133]

[0134]

[0135]

[0136] In this embodiment, the calculation expression of the horizontal deviation of the center line is:

[0137] LC HP = X1 - X LC ;

[0138] LC CP = Z1 - Z LC .

[0139] Embodiment III

[0140] Please refer to Figure 10 , which shows a non-contact measurement system for the track platform clearance based on a total station in the third embodiment of the present invention. The system includes:

[0141] A first acquisition module 10, configured to observe the coordinate points of the platform and the track to obtain the initial point coordinates, and obtain the coordinates of the first track point and the second track point on the downlink track of the track based on the initial point coordinates, so as to obtain the first coordinate and the second coordinate, and obtain the angle between the first track point and the preset direction and the angle between the second track point and the initial direction, so as to obtain the first angle and the second angle;

[0142] A first calculation module 20, configured to calculate the initial coordinates of the contact point between the initial direction and the downlink track based on the first coordinate, the second coordinate, the first angle, and the second angle, and use the initial coordinates as the measurement initial position;

[0143] A second acquisition module 30, configured to obtain the first top surface coordinate, the first side surface coordinate of the downlink track, the second top surface coordinate, the second side surface coordinate of the uplink track of the track, and the side surface coordinate of the platform edge opposite to the measurement initial position based on the measurement initial position;

[0144] A second calculation module 40, configured to calculate the gauge, the track level, the near-track vertical deviation, the near-track horizontal deviation, the center-line horizontal deviation, the center-line vertical deviation, and the center horizontal deviation based on the first top surface coordinate, the first side surface coordinate, the second top surface coordinate, the second side surface coordinate, and the side surface coordinate of the platform edge.

[0145] Further, in some alternative embodiments, the first acquisition module 10 includes:

[0146] A first calculation unit, configured to calculate a first measurement reference point and a second measurement reference point based on the first coordinate, the second coordinate, the first angle, and the second angle, where the first measurement reference point is located on the uplink platform and the second measurement reference point is located on the downlink platform;

[0147] A first acquisition unit, configured to acquire a first top surface coordinate, a first side surface coordinate of the downlink track, a second top surface coordinate, and a second side surface coordinate of the uplink track of the track based on the first measurement reference point;

[0148] A second acquisition unit, configured to acquire a third top surface coordinate, a third side surface coordinate of the downlink track, a fourth top surface coordinate, and a fourth side surface coordinate of the uplink track of the track based on the second measurement reference point;

[0149] A second calculation unit, configured to calculate the gauge, the track level, the near-rail vertical deviation, the near-rail transverse deviation, the centerline transverse deviation, the centerline vertical deviation, and the center transverse deviation based on the first top surface coordinate, the first side surface coordinate, the second top surface coordinate, the second side surface coordinate, the third top surface coordinate, the third side surface coordinate, the fourth top surface coordinate, and the fourth side surface coordinate.

[0150] The functions or operation steps implemented when the above-mentioned modules and units are executed are substantially the same as those in the above method embodiment, and will not be described in detail here.

[0151] The non-contact measurement system for the track platform clearance based on the total station provided by the embodiment of the present invention has the same implementation principle and the same technical effects as those in the foregoing method embodiment. For a brief description, for the parts not mentioned in the system embodiment, reference may be made to the corresponding content in the foregoing method embodiment.

[0152] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0153] The above-mentioned embodiments only represent several implementation manners of the present invention, and the descriptions thereof are relatively specific and detailed, but should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

1. A non-contact measurement method for track platform limits based on a total station, characterized in that: The method comprises: Observe the coordinate points of the platform and the track to obtain the coordinates of the initial point, and use the coordinates of the initial point to obtain the coordinates of the first track point and the second track point on the downline track of the track to obtain the first coordinate and the second coordinate, and obtain the angle between the first track point and the preset direction and the angle between the second track point and the initial direction to obtain the first angle and the second angle; Calculate the initial coordinates of the contact point between the initial direction and the downline track based on the first coordinates, the second coordinates, the first angle, and the second angle, and use the initial coordinates as the measurement initial position; Based on the measurement initial position, obtain the first top surface coordinate and the first side surface coordinate of the downline track, the second top surface coordinate and the second side surface coordinate of the upline track of the track, and the side surface coordinate of the platform edge opposite to the measurement initial position; The track gauge, track horizontality, near-track vertical deviation, near-track lateral deviation, centerline lateral deviation, centerline vertical deviation and center lateral deviation are calculated based on the first top surface coordinate, the first side surface coordinate, the second top surface coordinate, the second side surface coordinate and the platform edge side coordinate.

2. The non-contact measurement method of track platform limits based on total station according to claim 1 is characterized in that: After the steps of obtaining the first angle and the second angle, the method further includes: Calculate a first measurement reference point and a second measurement reference point based on the first coordinate, the second coordinate, the first angle, and the second angle, wherein the first measurement reference point is located at an uplink platform, and the second measurement reference point is located at a downlink platform; Acquire a first top surface coordinate, a first side surface coordinate of the downline track, a second top surface coordinate and a second side surface coordinate of the upline track of the track based on the first measurement reference point; Acquire a third top surface coordinate, a third side surface coordinate of the downline track, and a fourth top surface coordinate and a fourth side surface coordinate of the upline track of the track based on the second measurement reference point; Based on the first top surface coordinate, the first side surface coordinate, the second top surface coordinate, the second side surface coordinate, the third top surface coordinate, the third side surface coordinate, the fourth top surface coordinate and the fourth side surface coordinate, the track gauge, track horizontality, near-track vertical deviation, near-track lateral deviation, centerline lateral deviation, centerline vertical deviation and center lateral deviation are calculated.

3. The non-contact measurement method of track platform limits based on total station according to claim 1 is characterized in that: The calculation expression of the track gauge is: Where d represents the track gauge, X C1 , Y C1 , Z C1 Respectively represent the abscissa, ordinate, and vertical coordinate of the first side coordinate, X C2 , Y C2 , Z C2 Respectively represent the abscissa, ordinate, and vertical coordinate of the second side coordinate, X D1 , Y D1 , Z D1 Respectively represent the abscissa, ordinate and ordinate of the first top surface coordinate.

4. The non-contact measurement method of track platform limits based on total station according to claim 1 is characterized in that: The calculation expression of the track horizontality is: Where, sp represents the track level, X D1 , Y D1 , Z D1 Respectively represent the abscissa, ordinate, and vertical coordinate of the first top surface coordinate, X D2 , Y D2 , Z D2 Respectively represent the abscissa, ordinate and ordinate of the second top surface coordinate.

5. The non-contact measurement method of track platform limits based on total station according to claim 1 is characterized in that: The calculation expression of the near-track vertical deviation is: C P =Z3-Z D2 ; In the formula, C P represents the near-track vertical deviation, Z D2 represents the vertical coordinate of the second top surface coordinate, and Z3 represents the vertical coordinate of the side surface coordinate of the platform edge.

6. The non-contact measurement method of track platform limits based on total station according to claim 1 is characterized in that: The calculation expression of the near-track lateral deviation is: H P =X3-X C2 ; In the formula, H P represents the near-track lateral deviation, X C2 represents the abscissa of the second side coordinate, and X3 represents the abscissa of the side coordinate of the platform edge.

7. The non-contact measurement method of track platform limits based on total station according to claim 1 is characterized in that: The calculation expression of the midline lateral deviation is: In the formula, LC HP Indicates the lateral deviation of the midline, X D1 , X D2 represent the abscissa of the first top surface coordinate and the abscissa of the second top surface coordinate, respectively, LC represents the abscissa of the center line, and X3 represents the abscissa of the side coordinate of the platform edge.

8. The non-contact measurement method of track platform limits based on total station according to claim 1, characterized in that: The calculation expression of the vertical deviation of the center line is: In the formula, LC CP represents the vertical deviation of the midline, Z D1 , Z D2 Respectively represent the vertical coordinate of the first top surface coordinate and the vertical coordinate of the second top surface coordinate, Z LC represents the vertical coordinate of the center line, and Z3 represents the vertical coordinate of the side coordinate of the platform edge.

9. A non-contact measurement system for track platform limits based on a total station, characterized in that: The system comprises: A first acquisition module is used to observe the coordinate points of the platform and the track to obtain the coordinates of the initial point, and to obtain the coordinates of the first track point and the second track point on the downline track of the track with the coordinates of the initial point to obtain the first coordinate and the second coordinate, and to obtain the angle between the first track point and the preset direction and the angle between the second track point and the initial direction to obtain the first angle and the second angle; A first calculation module, configured to calculate initial coordinates of a contact point between the initial direction and the downline track based on the first coordinates, the second coordinates, the first angle, and the second angle, and use the initial coordinates as a measurement initial position; A second acquisition module is used to acquire, based on the measurement initial position, a first top surface coordinate and a first side surface coordinate of the downline track, a second top surface coordinate and a second side surface coordinate of the upline track of the track, and a side surface coordinate of the platform edge opposite to the measurement initial position; The second calculation module is used to calculate the track gauge, track horizontality, near-track vertical deviation, near-track lateral deviation, centerline lateral deviation, centerline vertical deviation and center lateral deviation based on the first top surface coordinate, the first side surface coordinate, the second top surface coordinate, the second side surface coordinate and the platform edge side coordinate.

Images