CN110749297A - Mobile platform limit measuring instrument and measuring method - Google Patents

Mobile platform limit measuring instrument and measuring method Download PDF

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Publication number
CN110749297A
CN110749297A CN201911213437.2A CN201911213437A CN110749297A CN 110749297 A CN110749297 A CN 110749297A CN 201911213437 A CN201911213437 A CN 201911213437A CN 110749297 A CN110749297 A CN 110749297A
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CN
China
Prior art keywords
sensor
host
platform
measuring instrument
positioning
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Pending
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CN201911213437.2A
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Chinese (zh)
Inventor
柴雪松
段培勇
暴学志
徐济松
田德柱
凌烈鹏
杨佳乐
周游
谢锦妹
金花
时佳斌
王智超
张啟学
张伟月
薛超
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China Academy of Railway Sciences Corp Ltd CARS
Railway Engineering Research Institute of CARS
China Railway Science and Technology Development Co
Original Assignee
China Academy of Railway Sciences Corp Ltd CARS
Railway Engineering Research Institute of CARS
China Railway Science and Technology Development Co
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Application filed by China Academy of Railway Sciences Corp Ltd CARS, Railway Engineering Research Institute of CARS, China Railway Science and Technology Development Co filed Critical China Academy of Railway Sciences Corp Ltd CARS
Priority to CN201911213437.2A priority Critical patent/CN110749297A/en
Publication of CN110749297A publication Critical patent/CN110749297A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/16—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring distance of clearance between spaced objects
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C22/00—Measuring distance traversed on the ground by vehicles, persons, animals or other moving solid bodies, e.g. using odometers, using pedometers

Abstract

The invention discloses a movable platform limit measuring instrument and a measuring method, wherein the measuring instrument comprises a sensor positioning device, a detection frame, a first sensor, a second sensor, an inclinometer, an encoder, a power supply and a host; the first sensor is arranged on the sensor positioning device and transmits the acquired platform section data to the host, and the second sensor is arranged on the detection frame and transmits the measured track gauge data to the host; walking wheels are arranged at the bottoms of the two ends of the detection frame and can move along the track; the first sensor, the second sensor, the inclinometer and the encoder are respectively connected with the host; the first sensor, the second sensor, the inclinometer, the encoder and the host are respectively connected with a power supply. The mobile station limit measuring instrument and the method can accurately acquire the actually measured limit size, the track gauge and the line ultrahigh numerical value of the station, and compare the actually measured limit size with the preset limit threshold value to judge whether the station invades the limit.

Description

Mobile platform limit measuring instrument and measuring method
Technical Field
The invention relates to the technical field of automatic measurement, in particular to a movable platform limit measuring instrument and a measuring method.
Background
With the rapid development of railways in recent years, the train running speed is faster and faster, the operating mileage is increased continuously, and therefore the requirement on transportation safety is higher and higher.
The platform is used as a place for passengers to get on and off the train, a gap is formed between the train and the platform after the train is stopped stably, the passengers can not safely and conveniently get in and out the train when the gap is too large, and the train is easy to scratch when the gap is too small, so that the transverse and vertical sizes of the edge of the platform relative to the rail must meet the requirements of the railway platform limit.
Along with the long-term operation of the line, the position relationship of the platform relative to the line is changed under the influence of various factors, once some parts of the platform invade the clearance, the scratch accident of the train is likely to happen, and the adverse effect is brought to the safe operation of the railway. According to the requirement of platform limit management, each building department needs to dynamically manage the in-pipe platform limit, periodically detect, and comprehensively and timely master the dynamic change condition of the platform limit. At present, most of railway building departments adopt handheld tools for measurement, the measurement efficiency is low, fixed-point measurement can be carried out only on individual sections, the influence of human factors is large, the detection precision is low, the consumed time is long, and much manpower is needed.
Therefore, it is necessary to develop a mobile platform limit measuring instrument for rapidly and continuously detecting the platform limit.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a mobile platform limit measuring instrument and a measuring method, so as to solve at least one technical problem in the prior art.
One aspect of the invention provides a mobile platform limit measuring instrument, which comprises a sensor positioning device, a detection frame, a first sensor, a second sensor, an inclinometer, an encoder, a power supply and a host; wherein the content of the first and second substances,
the sensor positioning device is arranged on the detection frame, and walking wheels are arranged at the bottoms of two ends of the detection frame and roll along a track;
the first sensor, the second sensor, the inclinometer and the encoder are respectively connected with the host; the first sensor, the second sensor, the inclinometer, the encoder and the host are respectively connected with a power supply;
the first sensor is arranged on the sensor positioning device and transmits the acquired platform section data to the host, and the second sensor is arranged on the detection frame and transmits the measured displacement data to the host;
the inclinometer is arranged in the detection frame and used for measuring the ultrahigh numerical value of the line; the encoder is arranged on the shaft head of the walking wheel and sends pulse signals to the host, and the host calculates and obtains mileage positioning information according to the number of the pulse signals and the wheel diameter of the walking wheel.
Further, the first sensor is a two-dimensional section measuring sensor.
Further, the second sensor is a displacement sensor.
Further, the sensor positioning device comprises an upright post and an upright post positioning assembly, and the upright post is connected with the detection frame through the upright post positioning assembly.
Furthermore, the sensor positioning device further comprises a sliding positioning assembly, and the sliding positioning assembly is connected to the upright post in a sliding mode.
Further, the first sensor is mounted on the sliding positioning component.
Furthermore, one or more positioning seats are arranged on the upright column, and the upright column is divided into a plurality of detection positions by the positioning seats so as to adjust the installation heights of the sliding positioning assembly and the first sensor.
In another aspect, the present invention provides a mobile platform clearance measuring method, which includes using any one of the above mobile platform clearance measuring apparatuses, wherein the measuring method includes the following steps:
establishing a coordinate system by taking the middle point of a connecting line of the top surfaces of the rails as an original point, taking the connecting line of the top surfaces of the rails as an x axis and taking a connecting line of the top of the rails vertical to the rails as a y axis;
according to the height of the station to be measured, the position of the sliding assembly positioning assembly is adjusted, so that the top surface and the side surface of the station are positioned in the effective range of the first sensor;
the method comprises the steps that a first sensor acquires platform section data, a second sensor acquires displacement data and an inclinometer acquires angle data reflecting the track superelevation;
the host respectively carries out calculation processing on the platform section data, the displacement data and the angle data reflecting the ultra-high track and calculates the height position of the sliding assembly position to obtain the actually measured limit size of the platform, the track gauge and the ultra-high numerical value of the line;
and comparing the measured limit size of the platform with a preset limit threshold value to judge whether the platform is violated.
Furthermore, when the host calculates the size of the measured limit of the station, the host synchronously acquires the signal of the encoder and calculates the mileage information of the measured station limit.
Compared with the prior art, the invention has the beneficial effects that:
the mobile platform clearance measuring instrument provided by the embodiment of the invention can carry out mobile continuous detection on the vertical clearance distance and the horizontal clearance distance of the platforms with different heights of the railway and judge whether the requirements of the standard clearance of the platforms are met.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings, in which:
fig. 1 is a schematic front view of a mobile platform limit measuring instrument according to an embodiment of the present invention;
FIG. 2 is a schematic top view of a mobile platform limit gauge provided in accordance with an embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating a measurement principle of a mobile platform limit measuring instrument according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating a method for measuring station clearance according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of an overall structure of a sensor positioning device according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a column positioning assembly according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a slide positioning assembly according to an embodiment of the present invention.
The device comprises a sensor positioning device-100 and a stand column positioning component-110; base-111, first sliding groove-112, positioning block-113, top block-114, second groove-115, limit pin-116, third fastening device-117 and bearing-118; column-120; a slide positioning assembly-130; the sensor comprises a sensor base-131, a positioning seat-132, a sliding block-133, a guide rail-134, a first fastening device-135 and a first nut-136;
a detection frame-200 and a traveling wheel-210; transverse running wheels-211 and longitudinal running wheels-212; a first sensor-300, a second sensor-400, an inclinometer-500, an encoder-600, a power supply-700, and a mainframe-800.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 and fig. 2 are schematic front and top views of a mobile platform boundary measuring instrument according to an embodiment of the present invention; referring to fig. 1 and 2, the mobile platform limit measuring instrument includes a sensor positioning device 100, a detection frame 200, a first sensor 300, a second sensor 400, an inclinometer 500, an encoder 600, a power supply 700, and a host 800; the sensor positioning device 100 is mounted on the detection frame 200, the bottom of each of two ends of the detection frame 200 is provided with a traveling wheel 210, the traveling wheels 210 roll along a rail, and the traveling wheels 210 are arranged to realize the movement detection of the platform limit measuring instrument on the rail, so that the measuring efficiency is improved;
the first sensor 300, the second sensor 400, the inclinometer 500 and the encoder 600 are respectively connected with the host 800, the host 800 is used for displaying data transmitted by the first sensor 300, the second sensor 400, the inclinometer 500 and the encoder 600, and the host 800 processes the obtained measurement data in real time and can synchronously display the measurement result; the first sensor 300, the second sensor 400, the inclinometer 500, the encoder 600 and the main frame 800 are respectively connected with a power supply 700, the power supply 700 supplies power to the devices (namely, the first sensor 300, the second sensor 400, the inclinometer 500, the encoder 600 and the main frame 800 are respectively connected with the power supply 700), and the power supply 700 is also installed on the detection frame 200; preferably, the power source 700 is located inside the inspection frame 200 to protect the power source 700;
the first sensor 300 is installed in the sensor positioning device 100 and transmits the acquired platform section data to the host 800, and the second sensor 400 is installed in the detection frame 200 and transmits the measured displacement data to the host 800;
the inclinometer 500 is installed in the detection frame 200 and used for measuring the ultrahigh numerical value of the line; the encoder 600 is mounted on the axle head of the running wheel 210, and the encoder 600 sends a pulse signal to the host 800 through the running wheel 210, and provides mileage positioning information to the host 800 according to the pulse number of the pulse signal.
Further, the first sensor 300 is a two-dimensional section measuring sensor, and since the first sensor is a section measuring sensor and belongs to a two-dimensional sensor, the first sensor 300 can output the longitudinal and horizontal dimensions of the platform at the same time; preferably, the cross-section measuring sensor selected for the first sensor 300 is a high-frequency measuring sensor (for example, a sensor with model number ZLDS 200), where high frequency means that the frequency range of the first sensor 300 may be, for example, 1kHz, it is understood that the present invention is not limited to this frequency range, and continuous measurement can be performed on a platform to obtain real-time data; the first sensor 300 is mounted on a detection column, the detection area includes the upper surface of the platform and the side surface of the platform, and the first sensor 300 measures the transverse and longitudinal dimensions of the platform from the center of the line and the top surface of the rail in real time in the detection area. When the detection frame 200 is pushed to perform continuous measurement, the first sensor 300 can be set to measure the platform section data once every 10mm or even lower to 1mm by the pulse trigger signal provided by the encoder 600, so that the measurement efficiency and the accurate reliability of measurement of the mobile platform limit measuring instrument are improved, and the continuous measurement is realized.
Further, the second sensor 400 is a displacement sensor and is used for accurately measuring the track gauge in real time, and when the second sensor 400 is installed, the radial center line of the second sensor is parallel to the center lines of the two vertical traveling wheels; the displacement sensor and the inclinometer 500 are utilized to measure the line gauge and the ultrahigh data, so that the output result of the mobile platform limit measuring instrument is the longitudinal distance and the horizontal distance between the platform and the top surface of the rail and the line center line, and the numerical value is more accurate.
Further, the sensor positioning device 100 includes a column 120 and a column positioning assembly 110, the column 120 is connected to the detection frame 200 through the column positioning assembly 110, and the column positioning assembly 110 is used for positioning the column 120; preferably, one or more positioning seats 132 are arranged on the upright column 120, and the positioning seats 132 divide the upright column 120 into a plurality of detection positions; therefore, the sensor positioning device 100 can achieve accurate repeated positioning during the process of disassembly and assembly, and can meet the measurement requirements of platforms of various specifications with different heights.
Optionally, the second sensor 400 is installed between the rails to detect the rail gauge in real time and transmit the measured rail gauge value to the host 800; preferably, the second sensor 400 is located inside the detection frame 200;
the inclinometer 500 is installed in the detection frame 200 and used for measuring the ultrahigh numerical value of the line;
the encoder 600 is mounted on the axle head of the running wheel 210, and the encoder 600 sends a pulse signal to the host 800 through the running wheel 210, and provides mileage positioning information to the host 800 according to the pulse number of the pulse signal.
Optionally, the detection frame 200 is a vehicle frame, and the inclinometer 500 is installed in a beam of the vehicle frame.
Optionally, the pillar positioning assembly 110 includes a base 111, the pillar 120 and the base 111 may be positioned by a pin, and the pillar 120 is fixed on the base 111 by a fastening or positioning device; preferably, the frame is T-shaped, and it will be appreciated that in other embodiments, the frame may be i-shaped or otherwise shaped.
Optionally, the running wheels 210 comprise transverse running wheels 211 and vertical running wheels 212.
Preferably, the transverse traveling wheels 211 are positioned at two sides of the frame and are horizontally placed, and the central lines of the transverse traveling wheels are 16mm below the top surface of the rail, so that the smooth traveling of the detection frame is ensured;
the vertical running wheels 212 are positioned at two sides of the frame of the detection trolley and are vertically placed for bearing the weight of the frame and ensuring the smooth running of the detection frame. It is understood that the number of the transverse running wheels 211 may be 1 or more, and that the number of the vertical running wheels 212 may be more than one.
Optionally, there are two vertical running wheels (212).
Optionally, referring to fig. 5 and 6, the sensor positioning apparatus 100 further includes a sliding positioning assembly 130, the upright post 120 is connected to the sliding positioning assembly 130, and the sliding positioning assembly 130 is slidably connected to the upright post 120; preferably, the first sensor 300 is slidably connected to the upright 120, so as to adjust the height and the low direction at different positions of the upright 120, thereby realizing the measurement of platforms with different heights and various specifications; the first sensor 300 is mounted on the sliding positioning component 130;
the column positioning assembly 110 includes a positioning block 113, a first sliding slot 112 is disposed in the base 111, the positioning block 113 is mounted in the first sliding slot 112, and the positioning block 113 is connected to the column 120 through a second fastening device (not shown in the figure); one side of the positioning block 113 is provided with a top block 114 matched with the positioning block 113; a second groove 115 is formed in one side of the base 111, one end of a third fastening device 117 extends into the second groove 115, a bearing 118 is arranged between the third fastening device 117 and the top block 114, and the top block 114 moves in the second groove 115 along with the rotation of the third fastening device 117; through setting up stand locating component 110, guaranteed the accuracy of the repeated positioning between stand 120 and the detection frame 200 to the concrete structure of stand locating component 110 of this embodiment has realized stand 120 and detection frame 200's dismantlement, has assembled simply convenient.
Referring to fig. 5 and 7, the slide positioning assembly 130 includes a sensor base 131, a positioning seat 132, a slider 133 and a guide rail 134; the guide rail 134 is installed on one side of the upright post 120, and the slide block 133 is installed on the guide rail 134; wherein, the sliding block 133 and the guide rail 134 are tightly matched, so that the sliding block 133 can freely slide on the upright post 120 longitudinally; it can be understood that the slide block 133 can be provided in plurality according to the actual application requirement; similarly, a plurality of guide rails can be arranged;
one or more positioning seats 132 are arranged on the other side of the upright column 120, the upright column 120 is divided into a plurality of detection positions by the plurality of positioning seats 132 so as to adjust the installation heights of the sliding positioning assembly 130 and the first sensor 300, as shown in fig. 7, the number of the detection positions can be N, where N is greater than or equal to 1, and the multi-stage positioning of the first sensor 300 can be realized by arranging the N detection positions, so that the first sensor 300 can slide on the upright column 110 to a required detection position according to the detected height requirement, thereby ensuring that the detection position is consistent and accurate with respect to the height of the upright column 120 when the first sensor 300 is repeatedly positioned;
a sensor base 131 is fixedly installed on the sliding block 133, the first sensor 300 is installed on the sensor base 131, and the first fastening device 135 penetrates through the positioning seat 132 to connect the sensor base 131 to the guide rail 134;
wherein, the first fastening device 135 can combine the sensor base 131, the first sensor 300 and the slider 133 into a whole; preferably, a first nut 136 is provided on the first fastening device 135, and the first fastening device 135 can be moved (for example, moved forward and backward) by the first nut 136; by providing the sliding positioning assembly 450 on the mast 120, the first sensor 300 can detect the detection data of the line limits of different heights.
Optionally, a spacing pin 116 is anchored to the base 111, and the spacing pin 116 is used to position the upright post 120 in the direction along the route (the "direction along the route" refers to the direction along the mileage of the route).
Fig. 4 is a flowchart illustrating a mobile station clearance measurement method according to an embodiment of the present invention; referring to fig. 4, the measuring method includes the steps of:
s100, establishing a coordinate system by taking the middle point of a connecting line of the top surface of the rail as an origin, taking the connecting line of the top surface of the rail as an x axis and taking the connecting line vertical to the top surface of the rail as a y axis;
s200, adjusting the position of the sliding component positioning component 130 according to the height of the station to be detected, so that the top surface and the side surface of the station are positioned in the effective range of the first sensor 300;
s300, acquiring platform section data by the first sensor 300, acquiring displacement data by the second sensor 400 and acquiring angle data reflecting the track superelevation by the inclinometer (500);
s400, the host 800 respectively calculates and processes the platform section data, the displacement data and the angle data reflecting the ultra-high height of the track, and calculates and obtains the dimension of the platform actual measurement limit (namely the transverse distance and the vertical distance of the platform actual measurement limit), the track gauge and the ultra-high numerical value of the line by combining the height position of the sliding assembly position 130;1
s500, comparing the measured limit size of the platform with a preset limit threshold value, and judging whether the platform invades the limit.
Preferably, the line superelevation values are obtained by measurement using inclinometer 500.
Preferably, the host 800 synchronously acquires the signal of the encoder 600 when calculating the measured limit size of the station, and calculates the mileage information of the measured station limit so as to position and obtain the information of the cross section of the line.
And (4) obtaining the information whether the station invades the line according to the judgment, moving the station clearance measuring instrument, and measuring the whole line so as to obtain the actual clearance information of the whole station.
Fig. 3 is a schematic view illustrating a measurement principle of a mobile platform limit measuring instrument according to an embodiment of the present invention, and fig. 3 is a schematic view; in the embodiment, a coordinate system is established by taking the middle point of a connecting line of the top surface of the rail of the track as an original point, taking the connecting line of the top surface of the steel rail as an x axis and taking the connecting line vertical to the top surface of the steel rail as a y axis;
after the first sensor 300 is fixed on the upright post 120, platform section data is obtained, and the host 800 identifies and processes the platform section data to finally obtain platform edge profile data; the platform edge profile data comprises a first lateral distance e and a first longitudinal distance f, wherein the first lateral distance e is a lateral distance value of the first sensor 300 from a track gauge point on a side close to the platform; the first longitudinal distance f is a vertical distance value of the first sensor 300 from the top surface of the rail, wherein the values e and f can be obtained by measurement on a calibration table and are known fixed values;
the station edge profile data further includes a second lateral distance a and a second longitudinal distance b; wherein the second lateral distance a is the lateral distance from the first sensor 300 to the platform, and the second longitudinal distance b is the longitudinal distance from the first sensor 300 to the platform, where values a and b are measured in real time during the movement detection process of the first sensor 200 on the track;
the second sensor 400 acquires the track gauge n in real time;
obtaining the transverse distance x of the platform actual measurement limit according to the first transverse distance e, the first longitudinal distance f, the second transverse distance a, the second longitudinal distance b and the track gauge n1And a vertical distance y1The concrete formula is as follows:
x1＝a+e+m＝a+e+n/2；
y1＝f-b；
wherein m is n/2; x is the number of1、y1The horizontal and vertical distances of the platform actual measurement limit are respectively.
The invention has the beneficial effects that:
the mobile platform limit measuring instrument and the measuring method provided by the embodiment of the invention can realize mobile continuous measurement of the platform limit size, and obviously improve the measuring efficiency.
The concrete expression is as follows:
(1) the two-dimensional sensor is adopted to quickly acquire the section data of the platform, the detection speed is high, and the detection precision is high. The section acquisition interval can be less than 10mm, which is equivalent to the continuous detection of the platform, so that the most unfavorable sections cannot be missed in the longitudinal direction; in the cross section, continuous acquisition is also realized, and the most unfavorable point is not needed to be manually positioned, so that the accuracy and the rapidity of measurement are ensured.
(2) The sensor positioning device can enable the sensor to detect limit detection data of platforms with different heights by arranging the sliding positioning component on the upright post; through setting up stand locating component, guaranteed the accuracy of the repeated location between stand and the detection frame to the concrete structure of stand locating component of this embodiment has realized the stand and has detected the dismantlement of frame, has assembled simple convenient, easily operation, save time, safe and reliable, and the effect of being convenient for transport and deposit, and guarantee the accuracy of the repeated location of stand and detection frame.
(3) The detection frame is adopted to realize the stable movement of the measuring instrument, and an operator only needs to stably push the measuring instrument in the measuring process, so that the working complexity of the operator is greatly reduced.
Finally, it should be pointed out that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (9)

1. A mobile platform limit measuring instrument, characterized in that the measuring instrument comprises a sensor positioning device (100), a detection frame (200), a first sensor (300), a second sensor (400), an inclinometer (500), an encoder (600), a power supply (700) and a host (800); wherein the content of the first and second substances,
the sensor positioning device (100) is arranged on a detection frame (200), walking wheels (210) are arranged at the bottoms of two ends of the detection frame (200), and the walking wheels (210) roll along a track;
the first sensor (300), the second sensor (400), the inclinometer (500) and the encoder (600) are respectively connected with the host (800); the first sensor (300), the second sensor (400), the inclinometer (500), the encoder (600) and the host (800) are respectively connected with a power supply (700);
the first sensor (300) is arranged on the sensor positioning device (100) and transmits the acquired platform section data to the host computer (800), and the second sensor (400) is arranged on the detection frame (200) and transmits the measured displacement data to the host computer (800);
the inclinometer (500) is arranged in the detection frame (200) and is used for measuring the ultrahigh numerical value of the line; the encoder (600) is installed on a shaft head of the walking wheel (210), the encoder (600) sends pulse signals to the host (800), and the host (800) calculates and obtains mileage positioning information according to the number of the pulse signals and the wheel diameter of the walking wheel (210).
2. The mobile platform clearance measuring instrument of claim 1, wherein the first sensor (300) is a two-dimensional profile measuring sensor.
3. The mobile platform clearance measuring instrument of claim 1 or 2, wherein the second sensor (400) is a displacement sensor.
4. The mobile platform clearance measuring instrument of claim 1, wherein the sensor positioning device (100) comprises a mast (120) and a mast positioning assembly (110), the mast (120) being connected to the inspection frame (200) by the mast positioning assembly (110).
5. The mobile platform clearance measuring instrument of claim 4, wherein the sensor positioning device (100) further comprises a slide positioning assembly (130), the slide positioning assembly (130) being slidably connected to the upright (120).
6. The mobile platform clearance measuring instrument of claim 4, wherein the first sensor (300) is mounted on the slide positioning assembly (130).
7. The mobile platform clearance measuring instrument of claim 4, wherein the upright (120) is provided with one or more positioning bases (132), and the positioning bases (132) divide the upright (120) into a plurality of detection positions to adjust the installation height of the sliding positioning assembly (130) and the first sensor (300).
8. A mobile station clearance measuring method, comprising using the mobile station clearance measuring apparatus according to any one of claims 1 to 7, wherein the measuring method comprises the steps of:
establishing a coordinate system by taking the middle point of a connecting line of the top surfaces of the rails as an original point, taking the connecting line of the top surfaces of the rails as an x axis and taking a connecting line of the top of the rails vertical to the rails as a y axis;
adjusting the position of the sliding assembly positioning assembly (130) according to the height of the station to be detected, so that the top surface and the side surface of the station are within the effective range of the first sensor (300);
the method comprises the steps that a first sensor (300) acquires platform section data, a second sensor (400) acquires displacement data and an inclinometer (500) acquires angle data reflecting the track superelevation;
the host (800) respectively calculates and processes the section data, the displacement data and the angle data reflecting the ultra-high track of the platform and calculates by combining the height position of the sliding positioning assembly (130) to obtain the actually measured limit size of the platform, the track gauge and the ultra-high numerical value of the line;
and comparing the measured limit size of the platform with a preset limit threshold value to judge whether the platform is violated.
9. The method of claim 8, wherein the host (800) synchronously acquires signals from the encoder (600) and calculates the range information of the measured station boundary when calculating the measured boundary dimension of the station.
CN201911213437.2A 2019-12-02 2019-12-02 Mobile platform limit measuring instrument and measuring method Pending CN110749297A (en)

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Application Number Priority Date Filing Date Title
CN201911213437.2A CN110749297A (en) 2019-12-02 2019-12-02 Mobile platform limit measuring instrument and measuring method

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111750829A (en) * 2020-07-02 2020-10-09 沈阳铁道科学技术研究所有限公司 Method for judging vertical section in non-contact measurement of railway platform clearance
CN112678023A (en) * 2021-01-04 2021-04-20 天津路安工程咨询有限公司 Rail transit clearance detection device and detection method
CN112937631A (en) * 2021-01-29 2021-06-11 吉林市盈冲科技有限公司 Detection method for railway tunnel clearance
CN113776490A (en) * 2021-08-19 2021-12-10 铁科检测有限公司 From walking platform boundary limit check out test set

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111750829A (en) * 2020-07-02 2020-10-09 沈阳铁道科学技术研究所有限公司 Method for judging vertical section in non-contact measurement of railway platform clearance
CN111750829B (en) * 2020-07-02 2022-06-03 沈阳铁道科学技术研究所有限公司 Method for judging vertical section in non-contact measurement of railway platform clearance
CN112678023A (en) * 2021-01-04 2021-04-20 天津路安工程咨询有限公司 Rail transit clearance detection device and detection method
CN112937631A (en) * 2021-01-29 2021-06-11 吉林市盈冲科技有限公司 Detection method for railway tunnel clearance
CN112937631B (en) * 2021-01-29 2022-12-06 吉林市盈冲科技有限公司 Detection method for railway tunnel clearance
CN113776490A (en) * 2021-08-19 2021-12-10 铁科检测有限公司 From walking platform boundary limit check out test set

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