Track gauge widening turnout track condition detection method and device

Abstract

The present invention discloses a method and device for detecting the track state of a turnout with widened gauge. The method includes: obtaining high-speed railway ledger data and track inspection data; determining the turnout layout direction according to the mileage at the tip cutting of the switch rail and the mileage at the tip cutting of the stock rail; performing mileage error correction on the track inspection data of the widened turnout according to the track alignment irregularity measurement data, the mileage of the tip of the switch rail of the preset widened turnout, and the turnout layout direction; determining the track state of the widened turnout according to the preset track alignment widening value, the track alignment irregularity measurement data after error correction, the preset gauge widening value of the widened turnout, the gauge irregularity measurement data after error correction, and the superelevation measurement data after error correction. The present invention identifies the turnout characteristics based on the track inspection data of the widened turnout, performs secondary correction on the track inspection data of the widened turnout, and improves the efficiency and accuracy of detecting the track state of the turnout with widened gauge.

Description

Technical Field

[0001] The present invention relates to the technical field of railway track detection, and particularly to a method and device for detecting the track state of a turnout with widened gauge. Background Art

[0002] As a weak link in the railway track structure, the track irregularity of the turnout can reflect the turnout structure state and has a significant impact on the running safety and stability of the vehicle when the train passes through the turnout.

[0003] Among many types of turnouts, the turnout with widened gauge adopts the dynamic gauge optimization technology, and widens the left and right tracks near the switch rail, thus forming a natural gauge and alignment irregularity. As a track dynamic detection equipment, the detection principle of the high-speed comprehensive inspection train for track dynamic irregularity is based on the inertial reference method. Such large-amplitude gauge, alignment irregularity and track quality index TQI caused by the designed gauge widening always exist in the detection results of track inspection data. The existing processing method is based on the characteristics of the alignment, gauge irregularity and TQI overrun in the widened turnout area, and decides whether to delete the overrun value by relying on manual experience, and cannot evaluate the track geometric state in the turnout area.

[0004] In summary, there is an urgent need for a method for detecting the track state of a turnout with widened gauge to solve the problems existing in the above-mentioned prior art. Summary of the Invention

[0005] An embodiment of the present invention provides a method for detecting the track state of a turnout with widened gauge, so as to improve the efficiency and accuracy of detecting the track state of a turnout with widened gauge. The method includes:

[0006] Obtain high-speed railway ledger data and track inspection data; the track inspection data includes superelevation measurement data, alignment irregularity measurement data, gauge irregularity measurement data, left rail single-sided gauge and right rail single-sided gauge; the high-speed railway ledger data includes preset superelevation data, the switch rail tip mileage of the preset widened turnout, the preset alignment widening value of the preset widened turnout, and the preset gauge widening value of the preset widened turnout;

[0007] Perform mileage error correction on the superelevation measurement data according to the preset superelevation data;

[0008] Determine the curvature value at the maximum value of the preset gauge widening value of the preset widened turnout according to the switch rail tip mileage of the preset widened turnout;

[0009] When the curvature value is less than the preset threshold, determine the first gauge irregularity according to the left rail single-sided gauge and the right rail single-sided gauge;

[0010] Determine the difference between the first gauge irregularity and the gauge irregularity measurement data as the second gauge irregularity;

[0011] Retrieve within a preset range at the maximum value of the gauge irregularity including the widened turnout according to the second gauge irregularity to obtain the mileage at the tip cutting position of the switch rail and the mileage at the tip cutting position of the stock rail;

[0012] Determine the turnout layout direction according to the mileage at the tip cutting position of the switch rail and the mileage at the tip cutting position of the stock rail;

[0013] Perform mileage error correction on the track inspection data of the widened turnout according to the track alignment irregularity measurement data, the preset mileage at the tip of the switch rail of the widened turnout, and the turnout layout direction;

[0014] Determine the track state of the widened turnout according to the preset track alignment widening value of the widened turnout, the error-corrected track alignment irregularity measurement data, the preset gauge widening value of the widened turnout, the error-corrected gauge irregularity measurement data, and the error-corrected superelevation measurement data.

[0015] An embodiment of the present invention further provides a device for detecting the track state of a gauge-widened turnout to improve the efficiency and accuracy of detecting the track state of a gauge-widened turnout. The device includes:

[0016] An acquisition module, configured to acquire high-speed railway ledger data and track inspection data; the track inspection data includes superelevation measurement data, track alignment irregularity measurement data, gauge irregularity measurement data, left rail single-sided gauge, and right rail single-sided gauge; the high-speed railway ledger data includes preset superelevation data, the preset mileage at the tip of the switch rail of the widened turnout, the preset track alignment widening value of the widened turnout, and the preset gauge widening value of the widened turnout;

[0017] A processing module, configured to perform mileage error correction on the superelevation measurement data according to the preset superelevation data; determine the curvature value at the maximum value of the preset gauge widening value of the widened turnout according to the preset mileage at the tip of the switch rail of the widened turnout; when the curvature value is less than the preset threshold, determine the first gauge irregularity according to the left rail single-sided gauge and the right rail single-sided gauge; determine the difference between the first gauge irregularity and the gauge irregularity measurement data as the second gauge irregularity; retrieve within a preset range at the maximum value of the gauge irregularity including the widened turnout according to the second gauge irregularity to obtain the mileage at the tip cutting position of the switch rail and the mileage at the tip cutting position of the stock rail; determine the turnout layout direction according to the mileage at the tip cutting position of the switch rail and the mileage at the tip cutting position of the stock rail; perform mileage error correction on the track inspection data of the widened turnout according to the track alignment irregularity measurement data, the preset mileage at the tip of the switch rail of the widened turnout, and the turnout layout direction; determine the track state of the widened turnout according to the preset track alignment widening value of the widened turnout, the error-corrected track alignment irregularity measurement data, the preset gauge widening value of the widened turnout, the error-corrected gauge irregularity measurement data, and the error-corrected superelevation measurement data.

[0018] An embodiment of the present invention further provides a computer device, including a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the computer program, the above-mentioned track gauge widening turnout track state detection method is implemented.

[0019] An embodiment of the present invention further provides a computer-readable storage medium. The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the above-mentioned track gauge widening turnout track state detection method is implemented.

[0020] An embodiment of the present invention further provides a computer program product. The computer program product includes a computer program, and when the computer program is executed by a processor, the above-mentioned track gauge widening turnout track state detection method is implemented.

[0021] In an embodiment of the present invention, high-speed railway ledger data and track inspection data are obtained; the mileage error of the superelevation measurement data is corrected according to the preset superelevation data; according to the mileage of the tip of the switch rail of the preset widened turnout, the curvature value at the maximum value of the track gauge widening value of the preset widened turnout is determined; when the curvature value is less than the preset threshold, the first track gauge irregularity is determined according to the left rail single-sided track gauge and the right rail single-sided track gauge; the difference between the first track gauge irregularity and the track gauge irregularity measurement data is determined as the second track gauge irregularity; according to the second track gauge irregularity, a search is performed within a preset range at the maximum value of the track gauge irregularity including the widened turnout to obtain the mileage of the tip cutting of the switch rail and the mileage of the tip cutting of the stock rail; the turnout layout direction is determined according to the mileage of the tip cutting of the switch rail and the mileage of the tip cutting of the stock rail; the mileage error of the track inspection data of the widened turnout is corrected according to the track direction irregularity measurement data, the mileage of the tip of the switch rail of the preset widened turnout, and the turnout layout direction; according to the preset track direction widening value of the widened turnout, the error-corrected track direction irregularity measurement data, the preset track gauge widening value of the widened turnout, the error-corrected track gauge irregularity measurement data, and the error-corrected superelevation measurement data, the track state of the widened turnout is determined. Compared with the prior art, the turnout characteristics are identified based on the track inspection data of the widened turnout, and the track inspection data of the widened turnout is corrected twice, improving the efficiency and accuracy of the track state detection of the track gauge widening turnout. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. In the drawings:

[0023] Figure 1 It is a flowchart showing the method for detecting the track state of a track gauge widening turnout provided by the present invention;

[0024] Figure 2 Schematic flow chart of the track gauge widening turnout track condition detection method provided by the present invention;

[0025] Figure 3 Schematic diagram of identifying the characteristic points of a horizontal curve using a 100m chord of superelevation provided by the present invention;

[0026] Figure 4 Schematic diagram of correcting the mileage error for the superelevation measurement data provided by the present invention;

[0027] Figure 5 Schematic flow chart of the track gauge widening turnout track condition detection method provided by the present invention;

[0028] Figure 6 Schematic flow chart of the track gauge widening turnout track condition detection method provided by the present invention;

[0029] Figure 7 Schematic diagram of the 42m track alignment irregularity detection result provided by the present invention;

[0030] Figure 8 Schematic diagram of the 42m track alignment irregularity detection result provided by the present invention;

[0031] Figure 9 Schematic diagram of the track gauge irregularity detection result provided by the present invention;

[0032] Figure 10 Schematic structural diagram of the track gauge widening turnout track condition detection device provided by the present invention. Detailed implementation manners

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer and more understandable, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Here, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but not to limit the present invention.

[0034] Figure 1 Schematic flow chart corresponding to a track gauge widening turnout track condition detection method provided by an embodiment of the present invention, as Figure 1 shown, the method includes:

[0035] Step 101, obtain high-speed railway ledger data and track inspection data.

[0036] It should be noted that the track inspection data includes superelevation measurement data, alignment irregularity measurement data, gauge irregularity measurement data, single-sided gauge of the left rail and single-sided gauge of the right rail; the high-speed railway ledger data includes preset superelevation data, the mileage of the tip of the switch rail of the preset widened turnout, the alignment widening value of the preset widened turnout, and the gauge widening value of the preset widened turnout.

[0037] Step 102, correct the mileage error of the superelevation measurement data according to the preset superelevation data.

[0038] Step 103, determine the curvature value at the maximum value of the gauge widening value of the preset widened turnout according to the mileage of the tip of the switch rail of the preset widened turnout.

[0039] In the embodiment of the present invention, read the mileage M0 of the tip of the switch rail of the preset widened turnout in the design ledger, and retrieve the maximum value of the gauge irregularity and its position M2 within the range of meters before and after it. If the maximum value exceeds η1 millimeters, it is considered that there is a suspected gauge design widening at this place, and the curvature value of the track inspection data at the position M2 of the maximum value of the gauge irregularity is extracted.

[0040] Step 104, when the curvature value is less than the preset threshold, determine the first gauge irregularity according to the single-sided gauge of the left rail and the single-sided gauge of the right rail.

[0041] If the curvature value is less than the preset threshold η2 rad / km, it is considered that the track inspection data at this place is the track inspection data of the moving inspection vehicle passing through the turnout straight, otherwise it is considered that the moving inspection vehicle passes through the turnout laterally, and no subsequent processing is performed.

[0042] Add the single-sided gauge of the left rail and the single-sided gauge of the right rail in the track inspection data and take the opposite number to obtain the first gauge irregularity i = 1, 2,..., N. The specific formula is as follows:

[0043]

[0044] Step 105, determine the difference between the first gauge irregularity and the gauge irregularity measurement data as the second gauge irregularity.

[0045] Subtract the first gauge irregularity from the gauge irregularity measurement value g i to obtain the second gauge irregularity The specific formula is as follows:

[0046]

[0047] Step 106, retrieve according to the second gauge irregularity within the preset range at the maximum value of the gauge irregularity including the widened turnout to obtain the mileage of the tip cutting position of the switch rail and the mileage of the tip cutting position of the stock rail.

[0048] Further, calculate the average value of the second gauge irregularity. For the second gauge irregularity

[0049] subtract its average value to obtain the third gauge irregularity, thereby eliminating the trend term of the second gauge irregularity.

[0050] Retrieve respectively the maximum value and its position of the absolute value of the third gauge irregularity within the range of meters before and meters after the maximum value M2 of the gauge irregularity, and record them as the mileage of the suspected switch point cutting position and the mileage of the suspected nose point cutting position. If the mileage difference between these two positions is greater than the threshold meters, then identify this group of turnouts as No. 42 widened turnouts, otherwise identify them as No. 18 widened turnouts.

[0051] Calculate respectively the distances of these two positions from the maximum value M2 of the gauge irregularity. The position with the larger distance is identified as the mileage M4 of the nose point cutting position, and the position with the smaller distance is identified as the mileage M3 of the switch point cutting position.

[0052] Step 107: Determine the turnout layout direction according to the mileage of the switch point cutting position and the mileage of the nose point cutting position.

[0053] In the embodiment of the present invention, determine the type, turnout layout direction and turnout opening direction of the widened turnout according to the mileage of the switch point cutting position and the mileage of the nose point cutting position;

[0054] Taking the right-opening turnout as an example, judge the turnout layout direction according to whether the switch rail is on the large-mileage or small-mileage side of the nose point. Combining with the mileage change rule of the track inspection data, if the inspection vehicle passes through the switch point cutting position first, it is identified that the train passes through the turnout in the reverse direction, and if it passes through the nose point cutting position first, it is identified that the train passes through the turnout in the forward direction.

[0055] Extract the left and right rail alignment irregularities at the maximum value of the gauge irregularity. The side with the larger absolute value of the rail alignment irregularity is identified as the straight stock rail, and record this rail alignment irregularity as the rail alignment irregularity of the straight stock rail at the maximum value of the gauge irregularity. Combining the mileage relationship between the switch point cutting position and the maximum gauge widening position and the straight stock rail information, the turnout opening direction can be judged.

[0056] Step 108: Perform mileage error correction on the track inspection data of the widened turnout according to the measured rail alignment irregularity data, the switch point mileage of the preset widened turnout and the turnout layout direction.

[0057] Step 109: Determine the track status of the widened turnout based on the preset track alignment widening value of the widened turnout, the track alignment irregularity measurement data after error correction, the preset gauge widening value of the widened turnout, the gauge irregularity measurement data after error correction, and the superelevation measurement data after error correction.

[0058] In the above solution, the mileage error of the superelevation measurement data is corrected according to the preset superelevation data, realizing the primary correction of the mileage error of the track inspection data. Based on the track inspection data of the widened turnout, the turnout characteristics are automatically identified, realizing the secondary correction of the mileage error of the track inspection data, achieving the precise positioning of the track inspection data of the widened turnout, and improving the efficiency and accuracy of the detection of the track status of the gauge-widened turnout.

[0059] In an embodiment of the present invention, a complete plane alignment includes 5 small line element elements, namely the tangent length before the curve, the first transition curve, the circular curve, the second transition curve, and the tangent length after the curve. The 4 line element demarcation points of these 5 line element elements are the straight-transition point, the transition-circular point, the circular-transition point, and the transition-straight point respectively.

[0060] In step 102 of the embodiment of the present invention, the mileage error of the superelevation measurement data is corrected according to the preset superelevation data, and the step process is as Figure 2 shown, specifically as follows:

[0061] Step 201: Determine multiple line element demarcation points and the mileage data of each line element demarcation point according to the superelevation measurement data.

[0062] Step 202: Correct the error of the superelevation measurement data according to the preset superelevation data and the mileage data of each line element demarcation point.

[0063] In a possible implementation manner, as Figure 3 shown, calculate the 100-meter midpoint chord measurement value of the superelevation measurement data. When the 100-meter midpoint chord measurement value of the superelevation measurement data is greater than the preset threshold, it is recognized that there is a line element demarcation point at this place, and the mileage at the maximum value of the 100-meter chord of the superelevation is the measured mileage of this line element demarcation point.

[0064] In an embodiment of the present invention, combined with the positive and negative of the superelevation measurement data and the positive and negative characteristics of the 100-meter chord of the superelevation measurement data at the line element demarcation point, the direction, superelevation, curve length, transition curve length, and mileage of the 4 line element demarcation points of each curve segment are marked.

[0065] Furthermore, according to the recognition result of the plane curve parameters, the measured plane curve obtained from the superelevation measurement data is matched with the designed plane curve obtained from the preset superelevation data one by one from the small mileage to the large mileage.

[0066] Perform mileage error correction on the sampling points of each curve segment. The measured mileage of the straight-transition point of the jth plane curve and the measured mileage of the transition-straight point Revise them respectively to the designed mileage of the straight-slow point of the curve and the designed mileage of the slow-straight point Distribute the mileage error evenly to each sampling point within the curve according to the following formula to obtain the revised mileage of the i-th sampling point within the curve

[0067]

[0068] wherein, is the measured mileage before revision of the i-th sampling point; is the measured mileage of the straight-slow point of the j-th horizontal curve; is the measured mileage of the slow-straight point; is the designed mileage of the straight-slow point; is the designed mileage of the slow-straight point.

[0069] Perform mileage error correction on the sampling points of each tangent line segment. Distribute the mileage error evenly to each sampling point within the tangent line according to the following formula to obtain the revised mileage of the i-th sampling point within the tangent line

[0070]

[0071] wherein, is the measured mileage before revision of the i-th sampling point, and are respectively the measured and designed mileages of the slow-straight point of the horizontal curve before the k-th tangent line, and are respectively the measured and designed mileages of the straight-slow point of the horizontal curve after the k-th tangent line.

[0072] In a possible implementation manner, the mileage of each sampling point of the track inspection data is an integer multiple of 0.25 meters. Change the revised mileage of each sampling point to the nearest integer multiple of 0.25 meters. Thus, the mileage error correction of the track inspection data is completed.

[0073] As Figure 4 shown, the preset superelevation data and the superelevation measurement data before and after mileage error correction provided by the embodiment of the present invention are presented. It can be seen that based on the plane curve information in the account, the track inspection data is translated, stretched, and compressed along the mileage direction, thereby correcting the absolute and relative mileage errors of the track inspection data.

[0074] In step 108 of the embodiment of the present invention, mileage error correction is performed on the track inspection data of the turnout with widened gauge according to the track alignment irregularity measurement data, the designed mileage of the tip of the switch rail of the preset turnout with widened gauge, and the turnout layout direction. The step flow is as Figure 5 shown, specifically as follows:

[0075] Step 501, determining the measurement mileage of the point where the track gauge widening is maximum on the straight point rail side according to the track irregularity measurement data.

[0076] Step 502, determining the preset mileage of the maximum widening point of the straight point rail side gauge according to the preset widened turnout point rail tip mileage and the turnout layout direction.

[0077] Step 503, determining the mileage error of the track inspection data of the widened turnout according to the measured mileage at the maximum widening point of the straight point rail side gauge and the preset mileage at the maximum widening point of the straight point rail side gauge.

[0078] Step 504: performing mileage error correction on the track inspection data of the widened turnout according to the mileage error of the track inspection data of the widened turnout.

[0079] In the embodiment of the present invention, the track irregularity of the straight point rail is taken as the object, and the direction from the maximum value M2 of the track gauge irregularity to the cutting point M3 of the point rail tip is obtained. If the straight basic rail has a positive track irregularity at the maximum gauge irregularity, the minimum track irregularity on the straight point rail side within the range and its position M1 are searched; if the straight basic rail has a negative track irregularity at the maximum gauge irregularity, the maximum track irregularity on the straight point rail side within the range and its position M1 are searched. Position M1 is the point where the gauge widening is maximum on the straight point rail side.

[0080] Furthermore, the preset mileage of the maximum track width of the straight point rail is calculated based on the track tip mileage of the group of turnouts in the ledger, the turnout layout direction and the track width design value of the widened turnout.

[0081] In the embodiment of the present invention, the mileage M1 at the maximum track irregularity on the straight point rail side and the preset mileage at the maximum track gauge widening on the straight point rail side The difference is the mileage error of the track inspection data in the turnout area. The mileage of the track inspection data near the turnout area that has undergone a mileage correction is uniformly corrected according to the error, thus completing the secondary correction of the mileage error of the track inspection data in the turnout area.

[0082] The above scheme automatically identifies the turnout number, driving direction and turnout direction based on the track inspection data characteristics near the widened turnout, and realizes the secondary correction of the mileage error of the track inspection data in the turnout area.

[0083] In step 109 of the embodiment of the present invention, the track state of the widened turnout is determined according to the preset track widening value of the widened turnout, the track irregularity measurement data after error correction, the preset track gauge widening value of the widened turnout, the track gauge irregularity measurement data after error correction, and the superelevation measurement data after error correction. The step flow is as follows: Figure 6 As shown, the details are as follows:

[0084] Step 601: Filter the preset gauge widening value of the turnout to obtain the gauge irregularity of the widened turnout under the inertial reference.

[0085] In a possible implementation, two rectangular windows are connected in parallel with two triangular windows to construct a linear-phase high-pass non-recursive filter.

[0086] Use the linear-phase high-pass non-recursive filter to filter the preset gauge widening value of the widened turnout.

[0087] Step 602: Determine the gauge irregularity data after error correction based on the gauge irregularity of the widened turnout under the inertial reference and the measured gauge irregularity data after error correction.

[0088] Step 603: Determine the gauge irregularity data after error correction based on the preset gauge widening value of the widened turnout and the measured gauge irregularity data after error correction.

[0089] Step 604: Determine the track state of the widened turnout based on the gauge irregularity data after error correction and the gauge irregularity data after error correction.

[0090] For example, the cut-off wavelengths of the high-pass filter are 42m, 70m, and 120m. Two rectangular windows are connected in parallel with two triangular windows to construct an FIR linear-phase high-pass filter, and its transfer function is as follows:

[0091]

[0092] Where m, n, p, q, a1, a2, and a3 are constant coefficients related to the cut-off wavelength.

[0093] In the embodiment of the present invention, the above high-pass filter is used to filter the designed values of the left and right rail widening amounts of the No. 18 and No. 42 turnouts, and the designed values of the widening amounts under the inertial reference are respectively obtained, that is, the left and right gauge irregularities of the three cut-off wavelengths under the ideal track alignment condition. The measured left and right rail gauge irregularities of the three cut-off wavelengths are respectively subtracted from the gauge irregularities under the above ideal track alignment condition, so as to obtain the left and right rail gauge irregularities after deducting the designed gauge widening value.

[0094] The measured gauge irregularity is directly subtracted from the designed gauge widening amount, so as to obtain the gauge irregularity after deducting the designed gauge widening value.

[0095] When calculating the Track Quality Index (TQI) near the turnout area, the left and right rail gauge irregularities and gauge irregularities in the 7 indicators are recalculated using the processed data, so as to deduct the influence of the designed gauge widening value.

[0096] For example, the left and right rail gauge irregularities and gauge irregularities are processed according to the above scheme, and the results are respectively asFigure 7 , Figure 8 , Figure 9 As shown. It can be seen that the 42m track alignment irregularity at the maximum gauge widening of the straight stock rail is reduced from the original +8.32mm to -0.70mm after treatment, the 42m track alignment irregularity at the maximum gauge widening of the straight switch rail is reduced from the original -4.46mm to -1.07mm after treatment, the gauge irregularity at the maximum widening is reduced from the original +15.63mm to +1.47mm after treatment, and the TQI of this 200m section is reduced from the original 9.00mm to 5.04mm after treatment. It can be seen that the above scheme can eliminate the influence of the designed gauge widening on the track irregularity detection result, significantly reduce the gauge, track alignment irregularity and TQI in the widened turnout area, and is more conducive to the maintenance and management of the widened turnout state.

[0097] For the above scheme, for the condition of the train passing through the turnout straight ahead, based on the designed gauge widening values of the rails on both sides of the widened turnout, the track alignment irregularity under the inertial reference is constructed, that is, the track alignment irregularity under the ideal gauge widening condition, and it is separated from the measured track alignment irregularity. A high-pass filter is used to obtain the track alignment irregularities of each wavelength under the designed widening condition, and the random component of the gauge irregularity in the widened turnout area is obtained by subtracting the designed gauge widening amount from the measured gauge irregularity.

[0098] In the embodiment of the present invention, a track state detection device for a gauge-widened turnout is also provided, as described in the following embodiment. The device is as Figure 10 shown, and the device includes:

[0099] An acquisition module 1001, configured to acquire high-speed railway ledger data and track inspection data; the track inspection data includes superelevation measurement data, track alignment irregularity measurement data, gauge irregularity measurement data, left rail single-sided gauge and right rail single-sided gauge; the high-speed railway ledger data includes preset superelevation data, the mileage of the switch rail tip of the preset widened turnout, the preset track alignment widening value of the widened turnout, and the preset gauge widening value of the widened turnout;

[0100] The processing module 1002 is configured to correct the mileage error of the ultra-high measurement data according to the preset ultra-high data; determine the curvature value at the maximum value of the gauge widening value of the preset widened turnout according to the mileage of the tip of the switch rail of the preset widened turnout; when the curvature value is less than the preset threshold, determine the first gauge irregularity according to the single-sided gauge of the left rail and the single-sided gauge of the right rail; determine the difference between the first gauge irregularity and the gauge irregularity measurement data as the second gauge irregularity; retrieve within a preset range at the maximum value of the gauge irregularity including the widened turnout according to the second gauge irregularity to obtain the mileage of the tip cutting point of the switch rail and the mileage of the tip cutting point of the stock rail; determine the turnout layout direction according to the mileage of the tip cutting point of the switch rail and the mileage of the tip cutting point of the stock rail; correct the mileage error of the track inspection data of the widened turnout according to the track alignment irregularity measurement data, the mileage of the tip of the switch rail of the preset widened turnout, and the turnout layout direction; determine the track state of the widened turnout according to the track alignment widening value of the preset widened turnout, the track alignment irregularity measurement data after error correction, the gauge widening value of the preset widened turnout, the gauge irregularity measurement data after error correction, and the ultra-high measurement data after error correction.

[0101] In an embodiment of the present invention, the processing module 1002 is specifically configured to:

[0102] Determine multiple line element demarcation points and the mileage data of each line element demarcation point according to the ultra-high measurement data;

[0103] Correct the error of the ultra-high measurement data according to the preset ultra-high data and the mileage data of each line element demarcation point.

[0104] In an embodiment of the present invention, the processing module 1002 is specifically configured to:

[0105] Determine the measurement mileage at the maximum gauge widening of the straight switch rail side according to the track alignment irregularity measurement data;

[0106] Determine the preset mileage at the maximum gauge widening of the straight switch rail side according to the mileage of the tip of the switch rail of the preset widened turnout and the turnout layout direction;

[0107] Determine the mileage error of the track inspection data of the widened turnout according to the measurement mileage at the maximum gauge widening of the straight switch rail side and the preset mileage at the maximum gauge widening of the straight switch rail side;

[0108] Correct the mileage error of the track inspection data of the widened turnout according to the mileage error of the track inspection data of the widened turnout.

[0109] In an embodiment of the present invention, the processing module 1002 is specifically configured to:

[0110] Filter the track alignment widening value of the preset widened turnout to obtain the track alignment irregularity of the widened turnout under the inertial reference;

[0111] Determine the alignment irregularity data after error correction based on the alignment irregularity under the inertial reference of the widened turnout and the measured alignment irregularity data after error correction;

[0112] Determine the gauge irregularity data after error correction based on the preset gauge widening value of the widened turnout and the measured gauge irregularity data after error correction;

[0113] Determine the track state of the widened turnout based on the alignment irregularity data after error correction and the gauge irregularity data after error correction.

[0114] In the embodiment of the present invention, the processing module 1002 is specifically configured to:

[0115] Parallelize two rectangular windows and two triangular windows to construct a linear-phase high-pass non-recursive filter;

[0116] Filter the preset alignment widening value of the widened turnout by using the linear-phase high-pass non-recursive filter.

[0117] Since the principle of this device for solving problems is similar to that of the track state detection method for the gauge-widened turnout, the implementation of this device can refer to the implementation of the track state detection method for the gauge-widened turnout, and the repeated parts will not be elaborated.

[0118] The embodiment of the present invention further provides a computer device, including a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the computer program, the above-mentioned track state detection method for the gauge-widened turnout is implemented.

[0119] The embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the above-mentioned track state detection method for the gauge-widened turnout is implemented.

[0120] The embodiment of the present invention further provides a computer program product, where the computer program product includes a computer program, and when the computer program is executed by a processor, the above-mentioned track state detection method for the gauge-widened turnout is implemented.

[0121] In an embodiment of the present invention, high-speed railway ledger data and track inspection data are obtained; the mileage error of the superelevation measurement data is corrected according to the preset superelevation data; the curvature value at the maximum value of the gauge widening value of the preset switch with widened gauge is determined according to the mileage of the tip of the switch rail of the preset switch with widened gauge; when the curvature value is less than the preset threshold, the first gauge irregularity is determined according to the single-sided gauge of the left rail and the single-sided gauge of the right rail; the difference between the first gauge irregularity and the gauge irregularity measurement data is determined as the second gauge irregularity; the mileage of the tip cutting of the switch rail and the mileage of the tip cutting of the stock rail are obtained by retrieving within a preset range at the maximum value of the gauge irregularity including the switch with widened gauge according to the second gauge irregularity; the layout direction of the switch is determined according to the mileage of the tip cutting of the switch rail and the mileage of the tip cutting of the stock rail; the mileage error of the track inspection data of the switch with widened gauge is corrected according to the track alignment irregularity measurement data, the mileage of the tip of the switch rail of the preset switch with widened gauge, and the layout direction of the switch; according to the preset track alignment widening value, the error-corrected track alignment irregularity measurement data, the preset gauge widening value of the switch with widened gauge, the error-corrected gauge irregularity measurement data, and the error-corrected superelevation measurement data, the track state of the switch with widened gauge is determined. Compared with the prior art, the characteristics of the switch are identified based on the track inspection data of the switch with widened gauge, and the track inspection data of the switch with widened gauge is corrected twice, improving the efficiency and accuracy of the track state detection of the gauge-widened switch.

[0122] Those skilled in the art should understand that the embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present invention can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0123] The present invention is described with reference to the flowcharts and / or block diagrams of methods, apparatuses (systems), and computer program products according to embodiments of the present invention. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and the combination of flows and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to the processors of general-purpose computers, special-purpose computers, embedded processors, or other programmable data processing devices to generate a machine, so that the instructions executed by the processors of the computer or other programmable data processing devices generate means for implementing the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0124] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to work in a particular manner, such that the instructions stored in the computer-readable memory produce a manufacture including an instruction device that implements the functions specified in one or more of the processes and / or blocks Figure 1 in one or more of the processes and / or blocks Figure 1 specified in the function.

[0125] These computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process, whereby the instructions executed on the computer or other programmable apparatus provide steps for implementing the functions specified in one or more of the processes and / or blocks Figure 1 in one or more of the processes and / or blocks Figure 1 specified in the function.

[0126] The specific embodiments described above further elaborate on the object, technical solution, and beneficial effects of the present invention. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for detecting the track state of a turnout with widened gauge, characterized in that, Including: Obtain high-speed railway ledger data and track inspection data; the track inspection data includes superelevation measurement data, alignment irregularity measurement data, gauge irregularity measurement data, left rail single-sided gauge and right rail single-sided gauge; the high-speed railway ledger data includes preset superelevation data, the mileage of the tip of the switch rail of the preset widened turnout, the alignment widening value of the preset widened turnout, and the gauge widening value of the preset widened turnout; Perform mileage error correction on the superelevation measurement data according to the preset superelevation data; Determine the curvature value at the maximum value of the gauge widening value of the preset widened turnout according to the mileage of the tip of the switch rail of the preset widened turnout; When the curvature value is less than the preset threshold, determine the first gauge irregularity according to the left rail single-sided gauge and the right rail single-sided gauge; Determine the difference between the first gauge irregularity and the gauge irregularity measurement data as the second gauge irregularity; Retrieve within a preset range at the maximum value of the gauge irregularity including the widened turnout according to the second gauge irregularity to obtain the mileage of the tip cutting of the switch rail and the mileage of the tip cutting of the stock rail; Determine the turnout layout direction according to the mileage of the tip cutting of the switch rail and the mileage of the tip cutting of the stock rail; Perform mileage error correction on the track inspection data of the widened turnout according to the alignment irregularity measurement data, the mileage of the tip of the switch rail of the preset widened turnout, and the turnout layout direction; Determine the track state of the widened turnout according to the alignment widening value of the preset widened turnout, the alignment irregularity measurement data after error correction, the gauge widening value of the preset widened turnout, the gauge irregularity measurement data after error correction, and the superelevation measurement data after error correction.

2. The method for detecting the track state of a turnout with gauge widening according to claim 1, wherein Performing mileage error correction on the superelevation measurement data according to the preset superelevation data includes: Determine multiple line element demarcation points and the mileage data of each line element demarcation point according to the superelevation measurement data; Perform error correction on the superelevation measurement data according to the preset superelevation data and the mileage data of each line element demarcation point.

3. The gauge widening turnout track state detection method according to claim 1, characterized in that Performing mileage error correction on the track inspection data of the widened turnout according to the alignment irregularity measurement data, the mileage of the tip of the switch rail of the preset widened turnout, and the turnout layout direction includes: Determine the measurement mileage at the maximum gauge widening on the straight switch rail side according to the alignment irregularity measurement data; Determine the preset mileage at the maximum gauge widening on the straight switch rail side according to the mileage of the tip of the switch rail of the preset widened turnout and the turnout layout direction; Determine the mileage error of the track inspection data of the widened turnout according to the measurement mileage at the maximum gauge widening on the straight switch rail side and the preset mileage at the maximum gauge widening on the straight switch rail side; Perform mileage error correction on the track inspection data of the widened turnout according to the mileage error of the track inspection data of the widened turnout.

4. The gauge widening turnout track state detection method according to claim 1, wherein Determining the track state of the widened turnout according to the alignment widening value of the preset widened turnout, the alignment irregularity measurement data after error correction, the gauge widening value of the preset widened turnout, the gauge irregularity measurement data after error correction, and the superelevation measurement data after error correction includes: Filter the alignment widening value of the preset widened turnout to obtain the alignment irregularity of the widened turnout under the inertial reference; Determine the alignment irregularity data after error correction according to the alignment irregularity of the widened turnout under the inertial reference and the alignment irregularity measurement data after error correction; Determine the gauge irregularity data after error correction based on the preset gauge widening value of the widened turnout and the gauge irregularity measurement data after error correction; Determine the track state of the widened turnout based on the alignment irregularity data after error correction and the gauge irregularity data after error correction.

5. The gauge widening turnout track state detection method according to claim 4, characterized in that, Filter the preset alignment widening value of the widened turnout, including: Parallelize two rectangular windows and two triangular windows to construct a linear-phase high-pass non-recursive filter; Use the linear-phase high-pass non-recursive filter to filter the preset alignment widening value of the widened turnout.

6. A track state detection device for a turnout with widened gauge, characterized in that, Including: An acquisition module for acquiring high-speed railway ledger data and track inspection data; the track inspection data includes superelevation measurement data, alignment irregularity measurement data, gauge irregularity measurement data, left rail single-sided gauge and right rail single-sided gauge; the high-speed railway ledger data includes preset superelevation data, the mileage of the tip of the switch rail of the preset widened turnout, the preset alignment widening value of the preset widened turnout, and the preset gauge widening value of the preset widened turnout; A processing module for performing mileage error correction on the superelevation measurement data according to the preset superelevation data; Determine the curvature value at the maximum value of the preset gauge widening value of the preset widened turnout according to the mileage of the tip of the switch rail of the preset widened turnout; When the curvature value is less than the preset threshold, determine the first gauge irregularity according to the left rail single-sided gauge and the right rail single-sided gauge; determine the difference between the first gauge irregularity and the gauge irregularity measurement data as the second gauge irregularity; retrieve according to the second gauge irregularity within a preset range at the maximum value of the gauge irregularity including the widened turnout to obtain the mileage of the tip cutting of the switch rail and the mileage of the tip cutting of the heart rail; determine the turnout layout direction according to the mileage of the tip cutting of the switch rail and the mileage of the tip cutting of the heart rail; Perform mileage error correction on the track inspection data of the widened turnout according to the alignment irregularity measurement data, the mileage of the tip of the switch rail of the preset widened turnout, and the turnout layout direction; determine the track state of the widened turnout according to the preset alignment widening value of the widened turnout, the alignment irregularity measurement data after error correction, the preset gauge widening value of the widened turnout, the gauge irregularity measurement data after error correction, and the superelevation measurement data after error correction.

7. The gauge widening turnout track condition detection device according to claim 6, wherein, The processing module is specifically used for: Determine multiple line element demarcation points and the mileage data of each line element demarcation point according to the superelevation measurement data; Perform error correction on the superelevation measurement data according to the preset superelevation data and the mileage data of each line element demarcation point.

8. The gauge widening turnout track state detection device according to claim 6, characterized in that, The processing module is specifically used for: Determine the measurement mileage at the maximum gauge widening on the straight switch rail side according to the alignment irregularity measurement data; Determine the preset mileage at the maximum gauge widening on the straight switch rail side according to the mileage of the tip of the switch rail of the preset widened turnout and the turnout layout direction; Determine the mileage error of the track inspection data of the widened turnout according to the measurement mileage at the maximum gauge widening on the straight switch rail side and the preset mileage at the maximum gauge widening on the straight switch rail side; Perform mileage error correction on the track inspection data of the widened turnout according to the mileage error of the track inspection data of the widened turnout.

9. The track gauge widening turnout track state detection device according to claim 6, characterized in that, The processing module is specifically used for: Filter the preset alignment widening value of the widened turnout to obtain the alignment irregularity of the widened turnout under the inertial reference; Determine the alignment irregularity data after error correction based on the alignment irregularity under the inertial reference of the widened turnout and the measured alignment irregularity data after error correction; Determine the gauge irregularity data after error correction based on the preset gauge widening value of the widened turnout and the measured gauge irregularity data after error correction; Determine the track state of the widened turnout based on the alignment irregularity data after error correction and the gauge irregularity data after error correction.

10. The gauge widening turnout track state detection device according to claim 9, characterized in that The processing module is specifically configured to: Parallelize two rectangular windows and two triangular windows to construct a linear-phase high-pass non-recursive filter; Filter the preset alignment widening value of the widened turnout using the linear-phase high-pass non-recursive filter.

11. A computer device, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the method according to any one of claims 1 to 5.

12. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program, and when the computer program is executed by the processor, it implements the method according to any one of claims 1 to 5.

13. A computer program product, characterized in that, The computer program product includes a computer program, and when the computer program is executed by the processor, it implements the method according to any one of claims 1 to 5.

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