CN102304884B - Method for detecting smoothness of high-speed railway track - Google Patents

Abstract

The invention belongs to the field of optical measurement, and relates to an apparatus for detecting smoothness of a high-speed railway track. According to the detection apparatus, a measurement trolley (4), an optical reference station (2) and a reference marker post are mainly adopted in the method; traditional detection principles of an inertial reference method and a chord measurement method are broken; and the distance difference is measured by adopting a double-frequency laser ratio contrapuntal phase method, the smoothness of the track is measured by measuring long resolution capability, and spatial high-precision measurement is further finished by using the accuracy of time. The invention provides the new high-precision track smoothness detection method, so that technical guarantee is provided for realizing safety and comfortableness of higher speed operation in high-speed railways; and the method can be widely applied in the field of precise measurement such as linearity measurement of high-precision ultra long tracks, deformation monitoring of large dams, maintenance and detection of subway tracks and the like.

Description

A kind of pick-up unit of high speed railway track ride comfort

Technical field

The invention belongs to field of optical measuring technologies, relate to a kind of pick-up unit of high speed railway track ride comfort.

Background technology

Along with developing rapidly of China Express Railway system, train operation speed is more and more faster, and is more and more higher to the ride comfort requirement of high speed railway track.The detection method of current track mainly is divided into inertial reference method chord and surveys method, large-scale track checking car generally adopts the inertial reference method, carry out quadratic integral by the acceleration signal to train and directly try to achieve position or displacement, draw inertial reference, its shortcoming is that measurement result is subjected to the influence of road speed, can only be for detection of the highway section of having completed, manufacturing cost and use cost is very high, is not easy to daily wireline inspection and safeguards.Portable track checking car then adopts string to survey method mostly, calculate long wave irregularity (CN200971459) by measuring short string rise, because it is big to push away for a short time, there are problems such as error amplification, and string is surveyed method transport function poor astringency, measured value can not reflect track condition fully truly, handles also to be converted to the long measured value of 40 metric waves by liftering.In order to improve the measuring accuracy of long wave irregularity, Dalian La Te laser company limited adopts method of laser alignment to carry out long-chord and measures (CN201575794U), its shortcoming is to overcome the laser facula randomized jitter that atmospheric turbulence causes, and the parallax error of spot center and vibration etc. all can limit the further raising of measuring accuracy.

Summary of the invention

The objective of the invention is to overcome the problems referred to above, break through inertial reference method chord and survey these two kinds traditional detection principles of method, a kind of track ride comfort detection scheme of new high-speed railway is provided, realize high precision, the high-level efficiency measurement of the uneven compliance of high speed railway track, provide technical guarantee thereby realize security and the comfortableness of more speed operation for high-speed railway.

The technical scheme that the present invention adopts for achieving the above object is: a kind of detection method of high speed railway track ride comfort, mainly by measuring dolly (4), optical reference station (2) and base stake are formed, wherein measure dolly (4) and mainly comprise horizontal phase-locked gauge head (10), vertical phase-locked gauge head (9), self leveling plumb aligner (8), gauge laser measuring device for measuring (13), horizontal laser light distance measuring equipment (7), dolly car body (11), dolly wheel track (12), power supply and driver module (5) and data are handled and memory module (6), and base stake comprises base stake A type (1) and base stake Type B (3).

Above-mentioned base stake A type (1) has a ball-type prism, base stake Type B (3) has two vertical ball-type prisms that separate, reference point when the ball-type prism detects as the track ride comfort, base stake A type (1) and base stake Type B (3) are symmetrical in high-speed railway circuit center line, overlap with the CPIII reference stake and to lay, arrange a pair ofly every 120 meters, and the line that guarantees reference point is perpendicular to central lines of track.

Above-mentioned optical reference station (2) arranges one along the central lines of track of high-speed railway every 120 to 360 meters, demarcates the terrestrial coordinate of optics base station by geodetic surveying, and once demarcate every half a year.

Above-mentioned optical reference station (2) also can fixedly be laid with the GPS device, measures the terrestrial coordinate of optics base station (2) in real time by the GPS device.

Above-mentioned horizontal phase-locked gauge head (10) and vertical phase-locked gauge head (9) adopt double-frequency laser than contraposition mutually method come measuring distance poor, calculate the bias of gauge head relative datum dot center line, and can scan and follow the tracks of base stake.

Above-mentioned horizontal phase-locked gauge head (10) can be measured horizontal phase-locked gauge head (10) to the ball-type prism reference point (26) of base stake A type (1), with the range difference of horizontal phase-locked gauge head (10) to the following ball-type prism reference point (27) of base stake Type B (3), calculate horizontal phase-locked gauge head (10) transversal displacement of central lines of track relatively, measure dolly (4) orbital motion, then can solve the horizontal irregularity of horizontal phase-locked gauge head (10) by the lateral excursion data of match every bit.

Above-mentioned vertical phase-locked gauge head (9) can be measured vertical phase-locked gauge head (9) to the last ball-type prism reference point (28) of base stake Type B (3) and the range difference of following ball-type prism reference point (27), calculate vertical phase-locked gauge head (9) with respect to the vertical side-play amount of last ball-type prism reference point (28) and following ball-type prism reference point (27) center line, measure dolly (4) orbital motion, then can solve the vertical irregularity of vertical phase-locked gauge head (9) by the lateral excursion data of match every bit.

Above-mentioned self leveling plumb aligner (8) can provide the quasi-optical line that hangs down, extract the terrestrial coordinate information at optical reference station (2), and comprise laser ranging function, can measure horizontal phase-locked gauge head (10) to the vertical distance at optical reference station (2), thereby calculate the terrestrial coordinate of horizontal phase-locked gauge head (10), further utilize the geometric relationship of the rigid structure of measuring dolly (4), solve the value of dolly coordinate system under terrestrial coordinate.At first adjust during measurement and measure dolly (4), make self leveling plumb aligner (8) sight optical reference station (2), extract its terrestrial coordinate information, as the starting point of measuring.

Above-mentioned gauge laser ranging system (13) is used for measuring gauge, and measure left and right sides track to the lateral separation of dolly coordinate system, horizontal laser light distance measuring equipment (7) is used for measuring left and right sides track tread to the vertical distance of dolly coordinate system, the vertical irregularity data that the horizontal irregularity data that record in conjunction with horizontal phase-locked gauge head (10) and vertical phase-locked gauge head (9) record, calculate horizontal irregularity and the vertical irregularity of track, thereby reflect the space irregularity state of track fully truly, further can deal with data obtain gauge, level (superelevation), rail is to (versed sine), just, orbit geometry parameters such as twist irregularity.

Technical problem underlying and good effect thereof that the present invention can solve are:

1, breaks through inertial reference method chord and surveyed these two kinds traditional tracks detection principles of method, adopt double-frequency laser than contraposition phase method measuring principle, namely utilize the long resolution characteristic of survey to detect the ride comfort of track, and then finish the high-acruracy survey in space with the accuracy of time;

2, overcome short string measurement rise and calculated defectives such as long wave irregularity time error amplification, can realize the successive dynamic measuring of track irregularity, thereby reflect the continuous situation of change in space of track profile and position fully truly;

3, owing to adopt double-frequency laser poorer than contraposition phase method measuring distance, can suppress the error that environmental changes such as atmospheric disturbance cause measurement result, do not exist the decision errors of hot spot shake and spot center to the restriction of raising measuring accuracy, thereby realize high precision, high stability is measured;

4, detect data and can store, show and print, improved detection efficiency;

5, can be widely used in high precision overlength track straight line degree measurement, the deformation monitoring of large-scale dam, precision measurement fields such as the maintenance of underground railway track and detection.

Description of drawings

Fig. 1 is measuring system synoptic diagram of the present invention;

Fig. 2 is measurement vehicle structure synoptic diagram of the present invention;

Fig. 3 is straight line degree measurement schematic diagram of the present invention;

Fig. 4 is phase-locked gauge head optical schematic diagram of the present invention; Fig. 5 is that track ride comfort of the present invention detects schematic diagram.

Drawing reference numeral explanation: 1-base stake A type; 2-optical reference station; 3-base stake Type B; 4-measures dolly; 5-power supply and driver module; The 6-data are handled and memory module; 7-horizontal laser light distance measuring equipment; 8-self leveling plumb aligner; The vertical phase-locked gauge head of 9-; The horizontal phase-locked gauge head of 10-; 11-dolly car body; 12-dolly wheel track; 13-gauge laser measuring device for measuring; The 14-two-frequency laser; The 15-1/4 wave plate; The 16-analyzer; The 17-detector; The 18-collimating and beam expanding system; The 19-polarization beam splitter prism; The 20-turntable; The 21-catoptron; The 22-driving-belt; 23-light splitting rib; D1-90 ° of 24-isosceles right-angle prism; The 25-spectroscope; The ball-type prism reference point of 26-base stake A type; The following ball-type prism reference point of 27-base stake Type B; The last ball-type prism reference point of 28-base stake Type B.

Embodiment

Below in conjunction with accompanying drawing the present invention is further detailed

As Fig. 1 and Fig. 2, the detection method of a kind of high speed railway track ride comfort involved in the present invention, mainly by measuring dolly (4), optical reference station (2) and base stake are formed, wherein measure dolly (4) and mainly comprise horizontal phase-locked gauge head (10), vertical phase-locked gauge head (9), self leveling plumb aligner (8), gauge laser measuring device for measuring (13), horizontal laser light distance measuring equipment (7), dolly car body (11), dolly wheel track (12), power supply and driver module (5) and data are handled and memory module (6), and base stake comprises base stake A type (1) and base stake Type B (3).

Base stake A type (1) has a ball-type prism, base stake Type B (3) has two vertical ball-type prisms that separate, reference point when the ball-type prism detects as the track ride comfort, base stake A type (1) and base stake Type B (3) are symmetrical in high-speed railway circuit center line, overlap with the CPIII reference stake and to lay, arrange a pair ofly every 120 meters, and the line that guarantees reference point is perpendicular to central lines of track.

Optical reference station (2) arranges one along the central lines of track of high-speed railway every 120 to 360 meters, demarcates the terrestrial coordinate of optics base station by geodetic surveying, and once demarcate every half a year; Also can fixedly lay with the GPS device, measure the terrestrial coordinate of optics base station (2) by the GPS device in real time.

Detection principle of the present invention is as follows:

1, linearity detects principle

As shown in Figure 3, measurement point is expressed as G, and reference point is expressed as S ₁And S ₂, measurement point G is to reference point S ₁Distance table be shown L ₁, measurement point G is to reference point S ₂Distance table be shown L ₂, reference point S ₁And S ₂Distance table be shown 2d, measurement point G is to reference point S ₁And S ₂The distance table of line be shown L, measurement point G relative datum point S ₁And S ₂The offset-lists of center line be shown δ.

$\left\{\begin{array}{c}{L_1}^2={\mathrm{<figure-callout\; id="2"\; label="L"\; filenames="HSB00001052948300011.png,HSB00001052948300031.png"\; state="\{\{state\}\}">L</figure-callout>}}^2+{(d-\mathrm{\&delta;})}^2\\ {{\mathrm{<figure-callout\; id="2"\; label="L"\; filenames="HSB00001052948300011.png,HSB00001052948300031.png"\; state="\{\{state\}\}">L</figure-callout>}}_2}^2={\mathrm{<figure-callout\; id="2"\; label="L"\; filenames="HSB00001052948300011.png,HSB00001052948300031.png"\; state="\{\{state\}\}">L</figure-callout>}}^2+{(d+\mathrm{\&delta;})}^2\end{array}\right.\&DoubleRightArrow;({\mathrm{<figure-callout\; id="2"\; label="L"\; filenames="HSB00001052948300011.png,HSB00001052948300031.png"\; state="\{\{state\}\}">L</figure-callout>}}_2+L_1)\left(L_2{-L}_1\right)=4\mathrm{d\&delta;}$

$\&DoubleRightArrow;\mathrm{\&delta;}=\frac{({\mathrm{<figure-callout\; id="2"\; label="L"\; filenames="HSB00001052948300011.png,HSB00001052948300031.png"\; state="\{\{state\}\}">L</figure-callout>}}_2+L_1)(L_2-L_1)}{4d}$

Because L＞＞d, L ₂+ L ₁≈ 2L

Order $L_2-L_1=\mathrm{\&Delta;L}$

$\&DoubleRightArrow;\mathrm{\&delta;}=\frac{\mathrm{<figure-callout\; id="2d"\; label="L"\; filenames="HSB00001052948300021.png"\; state="\{\{state\}\}">L</figure-callout>}}{2d}\mathrm{\&Delta;L}$ Formula (1)

In the formula: d: reference point S ₁And S ₂Distance to its center line

L: measurement point G is to reference point S ₁And S ₂The distance of line

L ₁: measurement point G is to reference point S ₁Distance

L ₂: measurement point G is to reference point S ₂Distance

δ: measurement point G relative datum point S ₁And S ₂The side-play amount of center line

Δ L: measurement point G is to reference point S ₁And S ₂Range difference

Namely can be by directly measuring measurement point G to reference point S ₁And S ₂Range difference, obtain measurement point G relative datum point S indirectly ₁And S ₂The side-play amount of center line, if measurement point G is along reference point S ₁And S ₂Centerline direction move, then measure the linearity of measurement point G mobile route.

Therefore the measuring accuracy of linearity depends on that measurement point G is to reference point S ₁And S ₂The measuring accuracy of range difference Δ L, the present invention adopts double-frequency laser than contraposition phase method measuring distance difference Δ L.

2, double-frequency laser is than contraposition phase method principle

As shown in Figure 4, two-frequency laser (14) sends a branch of left-handed and right-circularly polarized light that contains two different frequencies, through becoming the mutually perpendicular linearly polarized light of direction of vibration behind the quarter wave plate (15), through a part of light reflection in spectroscope (25) back, form photo-beat at analyzer (16), be detected device (17) and receive; After the transmission of another part light through collimating and beam expanding system (18), pass through polarization beam splitter prism (19) again, two different linearly polarized lights of the mutually perpendicular frequency of direction of vibration are separated from each other, separately latter two linearly polarized light passes through quarter wave plate (15) respectively, become left-handed and right-circularly polarized light, after the mirror that is reflected (21) reflection through Amici prism (23) outgoing; Catoptron (21) is installed on the turntable (20), is rotated by motor-driven turntable (20), changes the shooting angle of outgoing beam, connects two turntables with driving-belt, thereby realizes in the measuring process twin-beam symmetrical scanning and tracking to base stake.The circularly polarized light of outgoing arrives the ball-type prism back reflection on the base stake, return along original optical path, pass through quarter wave plate (15) again and become linearly polarized light, through forming photo-beat at analyzer (16) after the reflection of isosceles right-angle prism D I-90 ° (24), be imaged on the detector (17).Compare the Strength Changes waveform of the photo-beat that reference beam and measuring beam produce with phase detector, can obtain the range difference between measurement point to two reference point.

Use E ₁The complex amplitude of representing a branch of polarized light, its angular frequency ω ₁Expression, its wave number k ₁Expression, this light beam is shown Z from the distance table that measurement point is transmitted into ball-type prism on the base stake ₁Use E ₂The complex amplitude of representing another bundle polarized light, its angular frequency ω ₂Expression, its wave number k ₂Expression, its wavelength λ ₂Expression, this light beam is shown Z from the distance table that measurement point is transmitted into ball-type prism on the base stake ₂Represent the synthetic complex amplitude of two-beam with E, represent its synthetic light intensity with I, represent the time with t.

$\left\{\begin{array}{c}{E}_1=A\cos ({\mathrm{\&omega;}}_{1}t-2k_1{Z}_1)\\ {\mathrm{<figure-callout\; id="2"\; label="E"\; filenames="HSB00001052948300011.png,HSB00001052948300031.png"\; state="\{\{state\}\}">E</figure-callout>}}_2=A\cos ({\mathrm{\&omega;}}_{2}t-2k_2{Z}_2)\end{array}\right.$

Z ₂-Z ₁＝ΔL

$E=E_1+{\mathrm{<figure-callout\; id="2"\; label="E"\; filenames="HSB00001052948300011.png,HSB00001052948300031.png"\; state="\{\{state\}\}">E</figure-callout>}}_2=\cos ({\mathrm{\&omega;}}_{1}t-2k_1{Z}_1)+\cos [{\mathrm{\&omega;}}_{2}t-2k_2{Z}_2]$

$=2A\cos [\frac{({\mathrm{\&omega;}}_1+{\mathrm{\&omega;}}_2)t}{2}-(k_1+k_2)Z_1-{\mathrm{<figure-callout\; id="2"\; label="k"\; filenames="HSB00001052948300011.png,HSB00001052948300031.png"\; state="\{\{state\}\}">k</figure-callout>}}_2\mathrm{\&Delta;L}]\cos [\frac{({\mathrm{\&omega;}}_1-{\mathrm{\&omega;}}_2)t}{2}-(k_1-k_2)Z_1+{\mathrm{<figure-callout\; id="2"\; label="k"\; filenames="HSB00001052948300011.png,HSB00001052948300031.png"\; state="\{\{state\}\}">k</figure-callout>}}_2\mathrm{\&Delta;L}]$ Formula (2)

In the formula: A: amplitude

Δ L: range difference

$I={\mathrm{<figure-callout\; id="2"\; label="E"\; filenames="HSB00001052948300011.png,HSB00001052948300031.png"\; state="\{\{state\}\}">E</figure-callout>}}^2=4{\mathrm{<figure-callout\; id="2"\; label="A"\; filenames="HSB00001052948300011.png,HSB00001052948300031.png"\; state="\{\{state\}\}">A</figure-callout>}}^2{\cos }^2[\frac{({\mathrm{\&omega;}}_1+{\mathrm{\&omega;}}_2)t}{2}-(k_1+k_2)Z_1-{\mathrm{<figure-callout\; id="2"\; label="k"\; filenames="HSB00001052948300011.png,HSB00001052948300031.png"\; state="\{\{state\}\}">k</figure-callout>}}_2\mathrm{\&Delta;L}]{\cos }^2[\frac{\left({\mathrm{\&omega;}}_1{-\mathrm{\&omega;}}_2\right)t}{2}-(k_1-k_2)Z_1+{\mathrm{<figure-callout\; id="2"\; label="k"\; filenames="HSB00001052948300011.png,HSB00001052948300031.png"\; state="\{\{state\}\}">k</figure-callout>}}_2\mathrm{\&Delta;L}]$

$=M{\cos }^2[\frac{({\mathrm{\&omega;}}_1-{\mathrm{\&omega;}}_2)t}{2}-(k_1-k_2)Z_1+{\mathrm{<figure-callout\; id="2"\; label="k"\; filenames="HSB00001052948300011.png,HSB00001052948300031.png"\; state="\{\{state\}\}">k</figure-callout>}}_2\mathrm{\&Delta;L}]$

$=\frac{M}{2}(1+\cos [({\mathrm{\&omega;}}_1-{\mathrm{\&omega;}}_2)t-2(k_1-k_2)Z_1+2{\mathrm{<figure-callout\; id="2"\; label="k"\; filenames="HSB00001052948300011.png,HSB00001052948300031.png"\; state="\{\{state\}\}">k</figure-callout>}}_2\mathrm{\&Delta;L}\left]\right)$ Formula (3)

In the formula: $M=4A^2{\cos }^2[\frac{({\mathrm{\&omega;}}_1+{\mathrm{\&omega;}}_2)t}{2}-(k_1+k_2)Z_1-{\mathrm{<figure-callout\; id="2"\; label="k"\; filenames="HSB00001052948300011.png,HSB00001052948300031.png"\; state="\{\{state\}\}">k</figure-callout>}}_2\mathrm{\&Delta;L}]$ The part that expression can't be responded by photodetector

The light intensity wave number that photodetector can respond is

It is the situation of change that the latter half of formula (3) has reflected photo-beat.The resolution characteristic of phase detector is generally 0.5 °, calculates double-frequency laser than the precision of contraposition phase method measuring distance difference:

When we adopt the He-Ne laser instrument, get λ ₂=632.8nm, then Δ L=0.44nm has reached very high Measurement Resolution.

3, the track ride comfort detects principle

Horizontal phase-locked gauge head (10) and vertical phase-locked gauge head (9) adopt double-frequency laser than contraposition mutually method come measuring distance poor, and calculate the bias of gauge head relative datum dot center line.

As shown in Figure 5, horizontal phase-locked gauge head (10) can be measured horizontal phase-locked gauge head (10) to the ball-type prism reference point (26) of base stake A type (1), with the range difference of horizontal phase-locked gauge head (10) to the following ball-type prism reference point (27) of base stake Type B (3), substitution formula (1) can be in the hope of the transversal displacement of the relative central lines of track of horizontal phase-locked gauge head (10), measure dolly (4) orbital motion, then can solve the horizontal irregularity of horizontal phase-locked gauge head (10) by the lateral excursion data of match every bit.

Vertical phase-locked gauge head (9) can be measured vertical phase-locked gauge head (9) to the last ball-type prism reference point (28) of base stake Type B (3) and the range difference of following ball-type prism reference point (27), utilize the formula (1) can be in the hope of the vertical side-play amount of vertical phase-locked gauge head (9) with respect to last ball-type prism reference point (28) and following ball-type prism reference point (27) center line, measure dolly (4) orbital motion, then can solve the vertical irregularity of vertical phase-locked gauge head (9) by the lateral excursion data of match every bit.

Self leveling plumb aligner (8) can provide the quasi-optical line that hangs down, extract the terrestrial coordinate information at optical reference station (2), and comprise laser ranging function, can measure horizontal phase-locked gauge head (10) to the vertical distance at optical reference station (2), thereby calculate the terrestrial coordinate of horizontal phase-locked gauge head (10), further utilize the geometric relationship of the rigid structure of measuring dolly (4), solve the value of dolly coordinate system under terrestrial coordinate.At first adjust during measurement and measure dolly (4), make self leveling plumb aligner (8) sight optical reference station (2), extract its terrestrial coordinate information, as the starting point of measuring.

Gauge laser ranging system (13) is used for measuring gauge, and measure left and right sides track to the lateral separation of dolly coordinate system, horizontal laser light distance measuring equipment (7) is used for measuring left and right sides track tread to the vertical distance of dolly coordinate system, the vertical irregularity data that the horizontal irregularity data that record in conjunction with horizontal phase-locked gauge head (10) and vertical phase-locked gauge head (9) record, calculate horizontal irregularity and the vertical irregularity of track, thereby reflect the space irregularity state of track fully truly, further can deal with data obtain gauge, level (superelevation), rail is to (versed sine), just, orbit geometry parameters such as twist irregularity.

4, the measuring accuracy of track irregularity is calculated

When we arrange a pair of base stake A type (1) and base stake Type B (3) every 120 meters, and the ball-type prism reference point (26) of base stake A type is 13 meters to the distance of the following ball-type prism reference point (27) of base stake Type B, when the vertical distance of following ball-type prism reference point (27) of the last ball-type prism reference point (28) of base stake Type B and base stake Type B is 1 meter, suppose measurement point to the distance L=120m of the line of the following ball-type prism reference point (27) of the ball-type prism reference point (26) of base stake A type and base stake Type B, utilize formula (1) can in the hope of:

Horizontal irregularity Measurement Resolution: ${\mathrm{\&delta;}}_1=\frac{\mathrm{<figure-callout\; id="2d"\; label="L"\; filenames="HSB00001052948300021.png"\; state="\{\{state\}\}">L</figure-callout>}}{2d_1}\mathrm{\&Delta;L}=\frac{120}{13}0.44\mathrm{nm}=4.06\mathrm{nm}$

Vertical irregularity Measurement Resolution: ${\mathrm{\&delta;}}_2=\frac{\mathrm{<figure-callout\; id="2d"\; label="L"\; filenames="HSB00001052948300021.png"\; state="\{\{state\}\}">L</figure-callout>}}{2{\mathrm{<figure-callout\; id="2"\; label="d"\; filenames="HSB00001052948300011.png,HSB00001052948300031.png"\; state="\{\{state\}\}">d</figure-callout>}}_2}\mathrm{\&Delta;L}=\frac{120}{1}0.44\mathrm{nm}=52.8\mathrm{nm}$

In the formula: 2d ₁=13m, the ball-type prism reference point (26) of expression base stake A type is to the distance of the following ball-type prism reference point (27) of base stake Type B

2d ₂=1m, the last ball-type prism reference point (28) of expression base stake Type B and the vertical distance of following ball-type prism reference point (27) of base stake Type B

Δ L=0.44nm, the expression double-frequency laser is than the resolution of contraposition phase method measuring distance difference.

Claims (4)

1. the pick-up unit of a high speed railway track ride comfort, it is characterized in that: form by measuring dolly (4), optical reference station (2) and base stake, described measurement dolly (4) mainly comprises horizontal phase-locked gauge head (10), vertical phase-locked gauge head (9), self leveling plumb aligner (8), gauge laser measuring device for measuring (13), horizontal laser light distance measuring equipment (7), dolly car body (11), dolly wheel track (12), power supply and driver module (5) and data are handled and memory module (6); Described base stake comprises base stake A type (1) and base stake Type B (3), base stake A type (1) has a ball-type prism, base stake Type B (3) has two vertical ball-type prisms that separate, reference point when the ball-type prism detects as the track ride comfort, base stake A type (1) and base stake Type B (3) are symmetrical in high-speed railway circuit center line, overlap with the CPIII reference stake and lay; Described horizontal phase-locked gauge head (10) and vertical phase-locked gauge head (9) adopt double-frequency laser than contraposition mutually method come measuring distance poor, calculate the bias of gauge head relative datum dot center line, and can scan and follow the tracks of base stake.

2. the pick-up unit of a kind of high speed railway track ride comfort according to claim 1, it is characterized in that: described optical reference station (2) arranges one along the central lines of track of high-speed railway every 120 to 360 meters, by the terrestrial coordinate of geodetic surveying demarcation optics base station, once demarcate every half a year; Optical reference station (2) also can fixedly be laid with the GPS device, measures the terrestrial coordinate of optics base station (2) in real time by the GPS device.

3. the pick-up unit of a kind of high speed railway track ride comfort according to claim 1, it is characterized in that: described self leveling plumb aligner (8) can provide the quasi-optical line that hangs down, extract the terrestrial coordinate information at optical reference station (2), and comprise laser ranging function, can measure horizontal phase-locked gauge head (10) to the vertical distance at optical reference station (2), thereby calculate the terrestrial coordinate of horizontal phase-locked gauge head (10), further utilize the geometric relationship of measuring dolly (4) rigid structure, solve the value of dolly coordinate system under terrestrial coordinate.

4. the pick-up unit of a kind of high speed railway track ride comfort according to claim 1, it is characterized in that: described gauge laser ranging system (13) is used for measuring gauge, and measure left and right sides track to the lateral separation of dolly coordinate system, horizontal laser light distance measuring equipment (7) is used for measuring left and right sides track tread to the vertical distance of dolly coordinate system, the vertical irregularity data that the horizontal irregularity data that record in conjunction with horizontal phase-locked gauge head (10) and vertical phase-locked gauge head (9) record, calculate horizontal irregularity and the vertical irregularity of track, further can deal with data obtain gauge, level (superelevation), rail is to (versed sine), just, these several orbit geometry parameters of twist irregularity.

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