A passing type wheelset detection device and wheelset detection method

Abstract

The present invention discloses a through-type wheelset detection device and a wheelset detection method, belonging to the field of vehicle engineering technology. A through-type wheelset detection device comprises: a first outer mounting box, a first inner mounting box, a second inner mounting box and a second outer mounting box which are sequentially arranged in a spaced relationship along the track transversely; a first high-speed 2D digital laser sensor and a second high-speed 2D digital laser sensor are arranged in the first outer mounting box, a third high-speed 2D digital laser sensor is arranged in the first inner mounting box, a fourth high-speed 2D digital laser sensor is arranged in the second inner mounting box, and a fifth high-speed 2D digital laser sensor and a sixth high-speed 2D digital laser sensor are arranged in the second outer mounting box. The present invention can accurately obtain the center coordinates and radius of the wheel, the wheel shape parameters and the inner distance of the wheelset through simple measurement and calculation, and has a simple overall structure, reliable principle and high calculation accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle engineering, and in particular to a through-type wheelset detection device and a wheelset detection method. Background Art

[0002] The wheelset of a rail vehicle is an important guarantee for the safe operation of the vehicle, and how to monitor the daily operation status of the vehicle is a key issue of concern. Safety performance can be effectively evaluated by calculating the surface parameters such as wheelset polygon, equivalent taper, wheelset wear, and wheel diameter through dimensional changes. The current dynamic detection systems for wheelset dimensions include laser measurement and image measurement. The image measurement method uses linear illumination to obtain the surface contour and calculates the wheelset parameters through filtering and grayscale processing. This method is greatly affected by the environment, produces obvious errors, and cannot calculate equivalent tapers. The existing laser measurement methods mainly include the chord height method and the three-point circle method to calculate the wheelset diameter. Both methods have varying degrees of approximation, which will cause deviations in the final measurement results and affect the measurement accuracy. Summary of the invention

[0003] The object of the present invention is to provide a through-type wheelset detection device and a wheelset detection method to solve the problem of low measurement accuracy of the existing wheelset size dynamic detection system.

[0004] The technical solution of the present invention to solve the above technical problems is as follows:

[0005] A through-type wheelset detection device comprises: a first outer mounting box, a first inner mounting box, a second inner mounting box and a second outer mounting box which are sequentially arranged at intervals along a track transversely; a first high-speed 2D digital laser sensor and a second high-speed 2D digital laser sensor are arranged in the first outer mounting box, a third high-speed 2D digital laser sensor is arranged in the first inner mounting box, a fourth high-speed 2D digital laser sensor is arranged in the second inner mounting box, and a fifth high-speed 2D digital laser sensor and a sixth high-speed 2D digital laser sensor are arranged in the second outer mounting box; a probe of the first high-speed 2D digital laser sensor is arranged opposite to a probe of the third high-speed 2D digital laser sensor, a probe of the fourth high-speed 2D digital laser sensor is arranged opposite to a probe of the fifth high-speed 2D digital laser sensor, and a probe of the second high-speed 2D digital laser sensor corresponds to a probe of the sixth high-speed 2D digital laser sensor.

[0006] The present invention selects two reference circles concentric with the wheel on the rim of the wheel, and the first high-speed 2D digital laser sensor and the second high-speed 2D digital laser sensor simultaneously scan along the longitudinal interval to obtain four detection points on the two reference circles, so that the center coordinates of the wheel can be accurately obtained through simple calculations. The first high-speed 2D digital laser sensor and the third high-speed 2D digital laser sensor are arranged in a mirror image relative to the track and are used to measure the rim height and rim thickness of the wheel, and the radius of the wheel is obtained through the rim height and the center coordinates of the wheel, while the fourth high-speed 2D digital laser sensor, the fifth high-speed 2D digital laser sensor and the sixth high-speed 2D digital laser sensor are used to detect the center and radius of another wheel, as well as the rim height and rim thickness of the wheel, and the third high-speed 2D digital laser sensor and the fourth high-speed 2D digital laser sensor measure the distance between the inner end faces of the left and right wheels, that is, the inner distance of the wheelset.

[0007] Furthermore, the first outer mounting box, the first inner mounting box, the second inner mounting box and the second outer mounting box are respectively provided with laser emitting and receiving holes for corresponding sensor lasers to pass through.

[0008] Furthermore, each of the above-mentioned installation boxes is respectively provided with a dust control device inside; the dust control device includes an electric telescopic rod and a dust baffle connected to the electric telescopic rod; the electric telescopic rod is connected to the corresponding installation box, and the dust baffle is close to the corresponding laser transmitting and receiving hole.

[0009] When the sensor of the present invention is working, the dustproof baffle plate opens the laser transmitting and receiving hole under the action of the electric telescopic rod, so that the sensor can work normally; after the sensor finishes working, the dustproof baffle plate blocks the laser transmitting and receiving hole under the action of the electric telescopic rod, preventing dust from entering the installation box, thereby achieving the purpose of dust prevention.

[0010] Furthermore, the dustproof baffle is provided with a laser passage hole arranged opposite to the corresponding laser emitting and receiving hole.

[0011] Furthermore, the telescopic direction of the electric telescopic rod is consistent with the extending direction of the corresponding installation box.

[0012] Furthermore, each of the installation boxes is provided with a dust blowing duct inside, the dust blowing duct corresponds to each sensor one by one, and the pipe opening of the dust blowing duct faces the probe of the corresponding sensor.

[0013] The dust blowing air duct of the present invention is used to blow away the probe of the sensor to avoid dust accumulation and affect the purpose of dust prevention.

[0014] Furthermore, the connection direction of the probe of the first high-speed 2D digital laser sensor and the probe of the second high-speed 2D digital laser sensor, and the connection direction of the probe of the fifth high-speed 2D digital laser sensor and the probe of the sixth high-speed 2D digital laser sensor are parallel to the extension direction of the track.

[0015] Furthermore, the through-type wheelset detection device also includes a first base and a second base, the first outer mounting box and the first inner mounting box are mounted on the first base, and the second inner mounting box and the second outer mounting box are mounted on the second base.

[0016] A wheelset detection method based on the above-mentioned passing wheelset detection device is characterized by comprising the following steps:

[0017] S1: placing the first outer mounting box, the first inner mounting box, the second inner mounting box and the second outer mounting box in sequence and at intervals in the transverse direction of the track, and making the first outer mounting box and the first inner mounting box arranged in a mirror image with respect to one track, and the second inner mounting box and the second outer mounting box arranged in a mirror image with respect to the other track;

[0018] S2: Select two circular edges whose centers coincide with the center of the wheel from the outer side of the rim of one of the wheels as two concentric reference circles. When the vehicle is running, the first high-speed 2D digital laser sensor and the second high-speed 2D digital laser sensor simultaneously scan the two concentric reference circles of one of the wheels in the longitudinal direction. After scanning twice, the first high-speed 2D digital laser sensor and the second high-speed 2D digital laser sensor obtain two detection points on the two reference circles respectively. The coordinate value of the center of the wheel is obtained through the distance between the first high-speed 2D digital laser sensor and the second high-speed 2D digital laser sensor and the positions of the four detection points.

[0019] The center coordinates of another wheel are detected by a fifth high-speed 2D digital laser sensor (41) and a sixth high-speed 2D digital laser sensor (42), and the detection process is the same;

[0020] S3: Detecting the wheel rim height h and wheel rim thickness by using the first high-speed 2D digital laser sensor and the third high-speed 2D digital laser sensor;

[0021] The rim height and rim thickness of another wheel are detected by a fourth high-speed 2D digital laser sensor (31) and a fifth high-speed 2D digital laser sensor (41), and the detection process is consistent;

[0022] S4: The radius r of the wheel can be obtained by the coordinate value of the center of the wheel P0 (x0, y0) and the wheel rim height h:

[0023] r = y0 - h;

[0024] The radius of the other wheel is obtained by the coordinate value of the center of the corresponding wheel and the height of the wheel rim.

[0025] S5: Measure the distance between the third high-speed 2D digital laser sensor and the inner end face of one of the wheels through the third high-speed 2D digital laser sensor, measure the distance between the fourth high-speed 2D digital laser sensor and the inner end face of the other wheel through the fourth high-speed 2D digital laser sensor, and then obtain the inner distance of the wheelset through the installation distance between the third high-speed 2D digital laser sensor and the fourth high-speed 2D digital laser sensor.

[0026] Furthermore, in the above step S2, the center coordinates of the two concentric reference circles and the center coordinates of the wheel are P0 (x0, y0), which are calculated according to the following formula:

[0027]

[0028]

[0029] Where:

[0030] S is the distance between the first high-speed 2D digital laser sensor and the second high-speed 2D digital laser sensor;

[0031] R1 and R2 are the radii of two concentric reference circles;

[0032] x1 and y1 are the horizontal and vertical coordinate values ​​of one of the detection points obtained by the first high-speed 2D digital laser sensor on one of the reference circles;

[0033] y2 is the ordinate value of another detection point obtained by the first high-speed 2D digital laser sensor on one of the reference circles;

[0034] y3 and y4 are the ordinate values ​​of two detection points obtained by the second high-speed 2D digital laser sensor on another reference circle;

[0035] The calculation process of the center coordinates of the other wheel is the same.

[0036] The wheelset detection method of the present invention selects two circular edges whose centers coincide with the center of the wheel on the outer side of the wheel rim as two concentric reference circles. Two sensors simultaneously scan longitudinally at intervals. The coordinates of the center of the wheel and the wheel radius can be calculated for each scanned section. Therefore, the calculation method is independent of the vehicle speed, and there is no requirement that the vehicle must pass at a constant speed within the measurement interval. At the same time, under the condition that the laser line of the laser sensor is perpendicular to the track surface, and the maximum dynamic measurement error of the wheel tread is 0.1mm, the calculated wheel radius error is less than 0.3mm, and the calculation accuracy of the wheel radius is high.

[0037] The present invention has the following beneficial effects:

[0038] (1) The present invention can accurately obtain the center coordinates and radius of the wheel through simple measurement and calculation. The sensors are arranged in a mirror image relative to the track to measure the wheel shape parameters. The inner distance of the wheelset can be obtained through two sensors located on the inner side of the track. The overall structure is simple, the principle is reliable, and the calculation accuracy is high.

[0039] (2) The present invention can prevent dust from entering the installation box and can prevent dust from accumulating on the probe of the sensor, thereby preventing the measurement accuracy from being affected by dust.

[0040] (3) The wheel radius calculation method of the present invention is independent of vehicle speed and does not require the vehicle to pass at a constant speed within the measurement interval, thereby making the measurement more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the structure of the through-type wheelset detection device of the present invention during detection;

[0042] Figure 2 It is a schematic diagram of the connection between the first outer installation box, the first inner installation box and the first base of the present invention;

[0043] Figure 3 It is a schematic diagram of the connection between the second inner installation box, the second outer installation box and the second base of the present invention;

[0044] Figure 4 It is a schematic diagram of the arrangement of the sensors of the present invention;

[0045] Figure 5 and Figure 6 It is a schematic diagram of the internal structure of the first outer installation box of the present invention;

[0046] Figure 7 It is a schematic structural diagram of the dust control device of the present invention;

[0047] Figure 8 It is a schematic diagram of the wheelset detection method of the present invention.

[0048] In the figure: 10-first outer mounting box; 11-first high-speed 2D digital laser sensor; 12-second high-speed 2D digital laser sensor; 20-first inner mounting box; 21-third high-speed 2D digital laser sensor; 30-second inner mounting box; 31-fourth high-speed 2D digital laser sensor; 40-second outer mounting box; 41-fifth high-speed 2D digital laser sensor; 42-sixth high-speed 2D digital laser sensor; 50-laser transmitting and receiving hole; 60-dust control device; 61-electric telescopic rod; 62-dust baffle; 63-laser passing hole; 70-dust blowing duct; 80-first base; 90-second base; 100-track; 110-wheel. DETAILED DESCRIPTION

[0049] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0050] Example

[0051] Please refer to Figures 1 to 3 A through-type wheelset detection device comprises: a first outer mounting box 10, a first inner mounting box 20, a second inner mounting box 30 and a second outer mounting box 40 which are sequentially arranged in a lateral direction of a track 100, and the extension direction of each mounting box is the extension direction of the track 100. One track 100 is located between the first outer mounting box 10 and the first inner mounting box 20, and the first outer mounting box 10 and the first inner mounting box 20 are arranged in a mirror image with respect to the track 100, and the other track 100 is located between the second inner mounting box 30 and the second outer mounting box 40, and the second inner mounting box 30 and the second outer mounting box 40 are arranged in a mirror image with respect to the track 100.

[0052] In order to ensure that the first outer mounting box 10, the first inner mounting box 20, the second inner mounting box 30 and the second outer mounting box 40 can be accurately installed and ensure the accuracy of inspection, the bottom of the first outer mounting box 10 and the first inner mounting box 20 are connected by a first base 80, the bottom of the second inner mounting box 30 and the second outer mounting box 40 are connected by a second base 90, and the two rails are respectively located above the first base 80 and the second base 90.

[0053] Please refer to Figure 4 The first outer mounting box 10 is provided with a first high-speed 2D digital laser sensor 11 and a second high-speed 2D digital laser sensor 12, the first inner mounting box 20 is provided with a third high-speed 2D digital laser sensor 21, the second inner mounting box 30 is provided with a fourth high-speed 2D digital laser sensor 31, and the second outer mounting box 40 is provided with a fifth high-speed 2D digital laser sensor 41 and a sixth high-speed 2D digital laser sensor 42.

[0054] The probes of the first high-speed 2D digital laser sensor 11 and the second high-speed 2D digital laser sensor 12 are arranged in the same direction, and the connection direction between the first high-speed 2D digital laser sensor 11 and the second high-speed 2D digital laser sensor 12 is consistent with the extension direction of the track 100. The first high-speed 2D digital laser sensor 11 and the third high-speed 2D digital laser sensor 21 are arranged in a mirror image with respect to one of the tracks, and the probe of the first high-speed 2D digital laser sensor 11 and the probe of the third high-speed 2D digital laser sensor 21 are arranged opposite to each other.

[0055] The probes of the fifth high-speed 2D digital laser sensor 41 and the sixth high-speed 2D digital laser sensor 42 are arranged in the same direction, and the direction of the connection line between the fifth high-speed 2D digital laser sensor 41 and the sixth high-speed 2D digital laser sensor 42 is consistent with the extension direction of the track 100. The fifth high-speed 2D digital laser sensor 41 and the fourth high-speed 2D digital laser sensor 31 are arranged in a mirror image with respect to another track, and the probe of the fifth high-speed 2D digital laser sensor 41 is arranged opposite to the probe of the fourth high-speed 2D digital laser sensor 31.

[0056] In this embodiment, the side wall of each installation box is provided with a laser emitting and receiving hole 50, the number of the laser emitting and receiving holes 50 on each installation box is consistent with the number of sensors in the corresponding installation box, and the laser emitting and receiving holes 50 correspond to the probes of the sensors.

[0057] Please refer to Figure 2 , Figure 5 , Figure 6 and Figure 7 , a dust control device 60 and a dust blowing duct 70 are provided inside the first outer mounting box 10. The dust control device 60 includes an electric telescopic rod 61 and a dust baffle 62. The electric telescopic rod 61 is installed on the inner side of the first outer mounting box 10, and the telescopic direction of the electric telescopic rod 61 is consistent with the extension direction of the first outer mounting box 10. The dust baffle 62 is close to the side of the laser transmitting and receiving hole 50 of the first outer mounting box 10, and the dust baffle 62 is provided with two laser passing holes 63, and the position of the laser passing holes 63 corresponds to the position of the laser transmitting and receiving hole 50 on the first outer mounting box 10. Driven by the electric telescopic rod 61, the dust baffle 62 can block the laser transmitting and receiving hole 50 to prevent dust from entering. There are two dust blowing ducts 70 installed on the dust baffle 62. The pipe openings of the two dust blowing ducts 70 are respectively close to the two laser passage holes 63. During operation, the dust blowing ducts 70 can respectively blow away the probes of the sensor to prevent dust from accumulating on the probes and affecting the measurement accuracy.

[0058] The structure of the first inner mounting box 20 is different from that of the first outer mounting box 10 in that the structure of the first inner mounting box 20 is symmetrical to that of the first outer mounting box 10, and there is only one sensor provided inside the first inner mounting box 20, namely, the third high-speed 2D digital laser sensor 21, and the first inner mounting box 20 is only provided with a laser emitting and receiving hole 50 corresponding to the probe of the third high-speed 2D digital laser sensor 21.

[0059] The structure of the second inner installation box 30 is symmetrical to that of the first inner installation box 20 , and the structure of the second outer installation box 40 is symmetrical to that of the first outer installation box 10 .

[0060] Please refer to Figure 8 A wheelset detection method based on the above-mentioned passing wheelset detection device comprises the following steps:

[0061] S1: Place the first outer mounting box 10, the first inner mounting box 20, the second inner mounting box 30 and the second outer mounting box 40 in sequence and at intervals along the lateral direction of the track 100, and arrange the first outer mounting box 10 and the first inner mounting box 20 in a mirror image with respect to one track, and arrange the second inner mounting box 30 and the second outer mounting box 40 in a mirror image with respect to the other track;

[0062] S2: Select two circular edges whose centers coincide with the center of the wheel from the outer side of the rim of one of the wheels 110 as two concentric reference circles. When the vehicle is running, the first high-speed 2D digital laser sensor 11 and the second high-speed 2D digital laser sensor 12 simultaneously scan the two concentric reference circles of one of the wheels 110 in the longitudinal direction. After scanning twice, the first high-speed 2D digital laser sensor 11 and the second high-speed 2D digital laser sensor 12 obtain two detection points (P1 and P2, and P3 and P4, respectively) on the two reference circles. The coordinate value of the center of the wheel 110 is obtained through the distance between the first high-speed 2D digital laser sensor 11 and the second high-speed 2D digital laser sensor 12 and the positions of the four detection points.

[0063] The center coordinates of the two concentric reference circles and the center coordinates of the wheel are P0 (x0, y0), which are calculated according to the following formula:

[0064]

[0065]

[0066] Where:

[0067] S is the distance between the first high-speed 2D digital laser sensor 11 and the second high-speed 2D digital laser sensor 12;

[0068] R1 and R2 are the radii of two concentric reference circles;

[0069] x1 and y1 are the horizontal and vertical coordinate values ​​of one of the detection points obtained by the first high-speed 2D digital laser sensor 11 on one of the reference circles;

[0070] y2 is the ordinate value of another detection point obtained by the first high-speed 2D digital laser sensor 11 on one of the reference circles;

[0071] y3 and y4 are respectively the ordinate values ​​of two detection points obtained by the second high-speed 2D digital laser sensor 12 on another reference circle.

[0072] The center coordinates of another wheel are detected by the fifth high-speed 2D digital laser sensor 41 and the sixth high-speed 2D digital laser sensor 42, and the detection process is consistent with the calculation process;

[0073] S3: the first high-speed 2D digital laser sensor 11 and the third high-speed 2D digital laser sensor 21 detect the corresponding wheel rim height h and wheel rim thickness;

[0074] The rim height and rim thickness of another wheel are detected by the fourth high-speed 2D digital laser sensor 31 and the fifth high-speed 2D digital laser sensor 41, and the detection process is the same;

[0075] S4: The radius r of the wheel can be obtained by the coordinate value of the center of the wheel P0 (x0, y0) and the wheel rim height h:

[0076] r = y0 - h;

[0077] The radius of the other wheel is obtained by the coordinate value of the center of the corresponding wheel and the height of the wheel rim.

[0078] S5: The third high-speed 2D digital laser sensor 21 measures the distance to the inner end face of one of the wheels 110, and the fourth high-speed 2D digital laser sensor 31 measures the distance to the inner end face of the other wheel 110. Then, the inner distance of the wheelset is obtained through the installation distance between the third high-speed 2D digital laser sensor 21 and the fourth high-speed 2D digital laser sensor 31.

[0079] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A wheelset detection method for a through-type wheelset detection device, characterized in that: The passing-type wheelset detection device comprises: a first outer mounting box (10), a first inner mounting box (20), a second inner mounting box (30) and a second outer mounting box (40) which are arranged in sequence and at intervals along the transverse direction of a track; a first high-speed 2D digital laser sensor (11) and a second high-speed 2D digital laser sensor (12) are arranged in the first outer mounting box (10); a third high-speed 2D digital laser sensor (21) is arranged in the first inner mounting box (20); and a fourth high-speed 2D digital laser sensor (31) is arranged in the second inner mounting box (30). A fifth high-speed 2D digital laser sensor (41) and a sixth high-speed 2D digital laser sensor (42) are arranged in the second outer mounting box (40); a probe of the first high-speed 2D digital laser sensor (11) is arranged opposite to a probe of the third high-speed 2D digital laser sensor (21), a probe of the fourth high-speed 2D digital laser sensor (31) is arranged opposite to a probe of the fifth high-speed 2D digital laser sensor (41), and a probe of the second high-speed 2D digital laser sensor (12) corresponds to a probe of the sixth high-speed 2D digital laser sensor (42); The first outer mounting box (10), the first inner mounting box (20), the second inner mounting box (30) and the second outer mounting box (40) are respectively provided with a laser emitting and receiving hole (50) for corresponding sensor lasers to pass through; A dust control device (60) is provided inside each installation box; the dust control device (60) comprises an electric telescopic rod (61) and a dust baffle (62) connected to the electric telescopic rod (61); the electric telescopic rod (61) is connected to the corresponding installation box, and the dust baffle (62) is close to the corresponding laser emitting and receiving hole (50); The dustproof baffle (62) is provided with a laser passage hole (63) arranged opposite to the corresponding laser emitting and receiving hole (50); The telescopic direction of the electric telescopic rod (61) is consistent with the extension direction of the corresponding installation box; A dust blowing duct (70) is further provided inside each installation box, the dust blowing duct (70) corresponding to each sensor one by one, and the pipe opening of the dust blowing duct (70) faces the probe of the corresponding sensor; The wheelset detection method comprises the following steps: S1: placing a first outer mounting box (10), a first inner mounting box (20), a second inner mounting box (30) and a second outer mounting box (40) in sequence and at intervals in the transverse direction of the track, and making the first outer mounting box (10) and the first inner mounting box (20) arranged in a mirror image with respect to one track, and the second inner mounting box (30) and the second outer mounting box (40) arranged in a mirror image with respect to the other track; S2: two circular edges whose centers coincide with the center of the wheel are selected from the outer side of the rim of one of the wheels as two concentric reference circles. When the vehicle is running, the first high-speed 2D digital laser sensor (11) and the second high-speed 2D digital laser sensor (12) simultaneously scan the two concentric reference circles of the wheel in the longitudinal direction. After scanning twice, the first high-speed 2D digital laser sensor (11) and the second high-speed 2D digital laser sensor (12) obtain two detection points on the two reference circles respectively. The coordinate value of the center of the wheel is obtained through the distance between the first high-speed 2D digital laser sensor (11) and the second high-speed 2D digital laser sensor (12) and the positions of the four detection points. The center coordinates of another wheel are detected by a fifth high-speed 2D digital laser sensor (41) and a sixth high-speed 2D digital laser sensor (42), and the detection process is the same; S3: Detecting the wheel rim height by means of the first high-speed 2D digital laser sensor (11) and the third high-speed 2D digital laser sensor (21) and rim thickness; The rim height and rim thickness of another wheel are detected by a fourth high-speed 2D digital laser sensor (31) and a fifth high-speed 2D digital laser sensor (41), and the detection process is the same; S4: Coordinate value of the center of the circle passing through the wheel and the wheel rim height , you can get the radius of the wheel : ； The radius of the other wheel is obtained by the coordinate value of the center of the corresponding wheel and the height of the wheel rim; S5: measuring the distance between the third high-speed 2D digital laser sensor (21) and the inner end face of one of the wheels by means of the third high-speed 2D digital laser sensor (21), measuring the distance between the fourth high-speed 2D digital laser sensor (31) and the inner end face of the other wheel by means of the fourth high-speed 2D digital laser sensor (31), and obtaining the inner distance of the wheelset by means of the installation distance between the third high-speed 2D digital laser sensor (21) and the fourth high-speed 2D digital laser sensor (31); In S2, the center coordinates of the two concentric reference circles and the center coordinates of the wheel are , calculated according to the following formula: Where: S is the distance between the first high-speed 2D digital laser sensor (11) and the second high-speed 2D digital laser sensor (12); and are the radii of two concentric reference circles respectively; and are the horizontal and vertical coordinate values ​​of one of the detection points on one of the reference circles obtained by the first high-speed 2D digital laser sensor (11); is the ordinate value of another detection point on one of the reference circles obtained by the first high-speed 2D digital laser sensor (11); and are respectively the ordinate values ​​of two detection points obtained by the second high-speed 2D digital laser sensor (12) on another reference circle; The calculation process of the center coordinates of the other wheel is the same.

2. The wheelset detection method of the passing wheelset detection device according to claim 1, characterized in that: The connection direction of the probe of the first high-speed 2D digital laser sensor (11) and the probe of the second high-speed 2D digital laser sensor (12), as well as the connection direction of the probe of the fifth high-speed 2D digital laser sensor (41) and the probe of the sixth high-speed 2D digital laser sensor (42) are all parallel to the extension direction of the track.

3. The wheelset detection method of the passing wheelset detection device according to claim 2, characterized in that: The pass-through wheelset detection device further comprises a first base (80) and a second base (90), the first outer mounting box (10) and the first inner mounting box (20) being mounted on the first base (80), and the second inner mounting box (30) and the second outer mounting box (40) being mounted on the second base (90).

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