A portable binocular contact network geometric parameter detection device

Abstract

The present application discloses a portable binocular contact network geometric parameter detection device, comprising a trolley running platform movable on a track, the trolley running platform comprising a T-shaped carrier trolley, a human-machine interaction unit, an electrical control unit and a binocular measurement component; the T-shaped carrier trolley comprises a crossbeam with guide mechanisms arranged at both ends, the middle of the crossbeam is arranged with a human-machine interaction unit, one end of the crossbeam is arranged with a side beam perpendicular to the crossbeam, and the binocular measurement component is arranged on the side beam; the human-machine interaction unit comprises a push rod connected to the crossbeam, and a data processing host mounting plate and a data processing host are arranged at one end of the push rod away from the side beam; the binocular measurement component comprises a structured light source arranged in the middle of the side beam and two area array cameras arranged at both ends of the side beam, the structured light source is projected upward onto the contact line, and the two area array cameras shoot upward a light curtain target picture of the structured light source on the contact line; the electrical control unit is arranged on the crossbeam, and is electrically connected to the human-machine interaction unit and the binocular measurement component.

Description

Technical Field

[0001] The present application relates to the field of rail transit detection technology, and in particular to a portable binocular contact network geometric parameter detection device. Background Art

[0002] The overhead contact network is a high-voltage transmission line that is set up in a zigzag shape above the rails in an electrified railway. It is used by the pantograph to draw current and directly transmits the electric energy obtained from the traction substation to the electric locomotive. The reliable contact and current drawing between the overhead contact wire and the pantograph are related to the normal and safe operation of the electrified railway. The geometric parameters of the overhead contact network, such as the pull-out value and the conductor height, are important items for the overhead contact network inspection. They are the main theoretical basis for the daily maintenance and inspection of the overhead contact network and an important guarantee for the safe operation of the train. They need to be inspected regularly.

[0003] At present, there are three main types of contact network geometric parameter detection devices: contact type, handheld non-contact type and vehicle-mounted non-contact network inspection equipment. Among them, the contact network inspection equipment is cumbersome and time-consuming to operate, and is not suitable for routine network inspection; the point laser test technology used by the handheld non-contact network inspection equipment requires manual alignment during the detection process, and the alignment is difficult and the test speed is slow, so it is not suitable for routine network inspection; although the vehicle-mounted non-contact network inspection equipment has a high degree of automation, it is difficult to achieve high-precision measurement under vehicle-mounted operating conditions, and the inspection vehicle has a long online inspection cycle.

[0004] Another type of non-contact detection equipment is a mobile ladder car placed on the track. Compared with the contact network inspection car, it can meet the needs of timely contact network maintenance on site. However, since there is only one set of detection equipment on the ladder car, it is only responsible for the inspection above the ladder car body. There are still problems such as the ladder car body shaking and the body tilting relative to the track plane, which causes errors in the measurement of the height guide and pull-out value.

[0005] In view of this, there is an urgent need for a portable binocular contact network geometric parameter detection device. Utility Model Content

[0006] In view of the shortcomings of the prior art described above, the present application proposes a portable binocular contact network geometric parameter detection device, which solves the shortcomings of the prior art that manual measurement is low in efficiency and single-point measurement cannot be continuous.

[0007] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0008] A portable binocular contact network geometric parameter detection device comprises a trolley running platform movable on a track, wherein the trolley running platform comprises a T-shaped carrier trolley, a human-machine interaction unit, an electrical control unit and a binocular measurement component;

[0009] The T-shaped carrier trolley comprises a crossbeam with guide mechanisms arranged at both ends, a human-machine interaction unit arranged in the middle of the crossbeam, a side beam perpendicular to the crossbeam arranged at one end of the crossbeam, and a binocular measurement component arranged on the side beam;

[0010] The human-machine interaction unit includes a push rod connected to the cross beam, and a data processing host mounting plate and a data processing host are arranged at one end of the push rod away from the side beam;

[0011] The binocular measurement assembly includes a structured light source arranged in the middle of the side beam and two area array cameras arranged at both ends of the side beam. The structured light source is projected upward onto the contact line, and the two area array cameras take pictures of the light curtain target of the structured light source on the contact line upward.

[0012] The electrical control unit is arranged on the crossbeam and is electrically connected to the human-machine interaction unit and the binocular measurement component.

[0013] As an optional technical solution, the crossbeam and the side beam are connected by battery iron adsorption. After the crossbeam and the side beam are docked and installed, the knob plunger pin is rotated to make the pin rebound, and the micro switch is pressed to energize the electromagnet for adsorption, and the crossbeam and the side beam are connected; the rotary plunger pin is pulled out to cut off the power to the electromagnet, and the crossbeam and the side beam can be separated.

[0014] As an optional technical solution, the crossbeam adopts an integrated aluminum alloy square tube.

[0015] As an optional technical solution, it is characterized in that the side beam is machined from aluminum, a base connected to an electromagnet of a binocular measurement component is mounted on the top, and a guide mechanism is provided at each end of the side beam.

[0016] As an optional technical solution, the guide mechanism includes a guide wheel and a guide wheel, the guide wheel is placed on the surface of the rail, and the guide wheel is clamped to the inner side of the rail.

[0017] As an optional technical solution, the trolley running platform further comprises a track gauge measuring unit (5), and the track gauge measuring unit is composed of a high-precision mechanical displacement sensor and an inclination sensor.

[0018] As an optional technical solution, the high-precision mechanical displacement sensor is installed at the end of the T-type carrier trolley. The tension assembly connected to the high-precision mechanical displacement sensor can keep the left and right gauge measuring wheel groups close to the inner side of the rail at all times to measure the displacement (rail gauge) during running.

[0019] As an optional technical solution, the inclination sensor is installed in the middle of the crossbeam of the detection T-type carrier trolley, which measures the horizontal inclination of the T-type carrier trolley to the ground, and the detection trolley platform always stays close to the track plane during its movement.

[0020] As an optional technical solution, the trolley traveling platform also includes a speed mileage measuring unit, which obtains the distance traveled by the vehicle between every two adjacent positioning points and the speed of the vehicle per unit time by installing a speed sensor on the axle of the T-type carrier trolley.

[0021] The beneficial effects of this application include:

[0022] This portable binocular contact network geometric parameter detection device is lightweight and easy to carry; each module can be quickly disassembled and assembled, and it uses electromagnetic suction to quickly assemble, and each component is tightly linked; it can be detected in real time on site without being restricted by location. Although the handheld contact network measuring instrument is easy to carry, it may be restricted by location and environment in some cases and cannot perform accurate, continuous and automatic measurements. It has the advantages of fast and continuous measurement of contact network geometric parameters, high measurement accuracy and high measurement efficiency. It solves the shortcomings of low efficiency of traditional manual measurement and single-point measurement that cannot be measured continuously.

[0023] Other beneficial effects or advantages of the present application will be described in detail in conjunction with the specific structure in the specific implementation manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor. In addition, it should be understood that the proportional relationship of the various components in the drawings of this specification does not represent the proportional relationship in the actual material selection and design, which is only a schematic diagram of the structure or position, where:

[0025] Figure 1 It is a block diagram of the detection device in the embodiment of the present application;

[0026] Figure 2 Schematic diagram of the structure of the detection device in the embodiment of the present application;

[0027] Figure 3 This is a schematic diagram of the structure of the cross beam and the side beam in the separated state in the embodiment of the present application;

[0028] Reference numerals:

[0029] 1-T-type carrier trolley, 11-crossbeam, 12-side beam, 2-human-computer interaction unit, 21-push rod, 22-data processing host mounting plate, 3-electrical control unit, 4-binocular measurement component, 41-structured light source, 42-area array camera, 5-track gauge measurement unit, 51-high-precision mechanical displacement sensor, 52-tilt sensor, 6-speed mileage measurement unit. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0032] In the description of this application, it should be noted that the terms used, such as "top" and "bottom", refer to the part of this application that is close to the top when in use as the top, and the part that is close to the bottom as the bottom; the terms used, such as "first" and "second", are only used to distinguish expressions, and do not indicate or imply that they have a difference in importance or order; the terms used, such as "inside" and "outside", refer to the inside and outside of a specific contour. The use of the above terms is only to facilitate a clear and simple description of the technical solution of this application, and cannot be understood as a limitation on this application.

[0033] Embodiment 1:

[0034] The present application discloses a portable binocular contact network geometric parameter detection device, comprising a trolley running platform movable on a track, the trolley running platform comprising a T-type carrier trolley 1, a human-machine interaction unit 2, an electrical control unit 3 and a binocular measurement component 4; the T-type carrier trolley 1 comprises a crossbeam 11 with guide mechanisms arranged at both ends, the middle of the crossbeam 11 is arranged with the human-machine interaction unit 2, one end of the crossbeam 11 is arranged with a side beam 12 perpendicular to the crossbeam, and the binocular measurement component 4 is arranged on the side beam 12; the human-machine interaction unit 2 comprises a push rod 21 connected to the crossbeam 11, and a data processing host mounting plate 22 and a data processing host are arranged at one end of the push rod 21 away from the side beam 12; the binocular measurement component 4 comprises a structured light source 41 arranged in the middle of the side beam 12 and two area array cameras 42 arranged at both ends of the side beam 12, the structured light source 41 is projected upward onto the contact line, and the two area array cameras 42 upwardly shoot a light curtain target picture of the structured light source 41 on the contact line; the electrical control unit 3 is arranged on the crossbeam 11, and is electrically connected to the human-machine interaction unit 2 and the binocular measurement component 4.

[0035] When doing specific operations, such as Figure 1 and Figure 2As shown: This device can be carried into the line operation area manually, and can be pushed manually to continuously detect the geometric parameters of the contact network. The binocular measurement component is mainly used to measure the contact line pull-out value, contact line height, contact line vertical distance, contact line horizontal distance and other contact line geometric parameters. It is mainly a binocular geometric parameter measurement component based on machine vision. The measurement component is mainly composed of line lasers, high-speed industrial array digital cameras, etc. The trolley travel platform is composed of a T-type carrier trolley, an electrical control unit, and a human-computer interaction unit. The electrical control unit provides power supply and control for each device; the human-computer interaction unit is mainly used for displaying detection results, system management, etc.; the data processing host in the human-computer interaction unit is mainly used to collect, compress, process, store and record images, videos and data of the binocular measurement component, gauge measurement unit and speed mileage measurement unit, and has remote control, information retrieval, data maintenance and other functions; a retractable and rotatable push rod is installed at the center of gravity of the equipment, and a laptop computer (referring to the data processing host in this article) can be placed on the top of the push rod.

[0036] As a possible implementation scheme, the cross beam 11 and the side beam 12 are connected by battery iron adsorption. It can be understood that the trolley running platform is a T-shaped trolley, and the side beams of the trolley along the track and the cross beams perpendicular to the track are connected by battery iron adsorption. When the cross beam and the side beam are docked and installed, rotate the knob plunger pin to make the pin rebound, press the micro switch to energize the electromagnet for adsorption, and ensure the stable connection between the side beam and the cross beam. Pull out the rotary plunger pin to cut off the power of the electromagnet, and the side beam and the main beam can be separated. Figure 3 shown.

[0037] As a possible solution, the crossbeam 11 is made of an integrated aluminum alloy square tube, the vehicle body strength is reliable, and there are installation reserved positions on the crossbeam for expanding functions, which can expand various functions.

[0038] As a possible implementation scheme, the side beam 12 is machined from aluminum, and a base connected to an electromagnet of a binocular measurement assembly is installed on the top. A guide mechanism is provided at each end of the side beam 12, and a guide wheel of one of the guide mechanisms is connected to a speed photoelectric encoder for speed mileage measurement.

[0039] As a possible implementation scheme, the guide mechanism includes a guide wheel and a guide wheel. The guide wheel is placed on the surface of the rail, and the guide wheel is clamped to the inner side of the rail. It can be understood that the entire device has three guide mechanisms, all of which are set in the same direction, with the cross beam and the side beam moving, and finally completing the movement of the entire trolley running platform.

[0040] As a possible implementation scheme, the trolley running platform further includes a track gauge measuring unit 5 , and the track gauge measuring unit 5 is composed of a high-precision mechanical displacement sensor 51 and an inclination sensor 52 .

[0041] As a possible implementation scheme, the high-precision mechanical displacement sensor 51 is installed at the end of the T-type carrier trolley 1. The tension assembly connected to the high-precision mechanical displacement sensor 51 can make the left and right track gauge measuring wheel groups always close to the inner side of the rail to measure the displacement during running. Furthermore, a maintenance window can be opened above the high-precision mechanical displacement sensor 51.

[0042] As a possible solution, the horizontal inclination of the vehicle 1 to the ground is detected, and the vehicle platform is always close to the track plane during its movement.

[0043] As a possible implementation scheme, the trolley running platform also includes a speed mileage measuring unit 6, which obtains the distance traveled by the vehicle between every two adjacent positioning points and the speed of the vehicle per unit time by installing a speed sensor on the axle of the T-type carrier trolley 1. Specifically, the speed mileage measuring unit installs a speed sensor on the axle of the platform trolley, and the encoder outputs a fixed number of pulses every time it rotates one circle. By counting the number of pulses, calculating it with the wheel radius, and combining it with other information, the vehicle mileage and other information can be calculated, wherein: the distance traveled by the vehicle between every two adjacent positioning points is the span, and the distance traveled by the vehicle per unit time is the speed of the vehicle.

[0044] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A portable binocular contact network geometric parameter detection device, characterized in that: It comprises a trolley running platform that can move on a track, the trolley running platform comprising a T-shaped carrier trolley (1), a human-machine interaction unit (2), an electrical control unit (3) and a binocular measurement component (4); The T-shaped carrier trolley (1) comprises a crossbeam (11) with guide mechanisms arranged at both ends, a human-machine interaction unit (2) arranged in the middle of the crossbeam (11), a side beam (12) perpendicular to the crossbeam (11) arranged at one end of the crossbeam (11), and a binocular measurement component (4) arranged on the side beam (12); The human-machine interaction unit (2) comprises a push rod (21) connected to the cross beam (11), and a data processing host mounting plate (22) and a data processing host are arranged at one end of the push rod (21) away from the side beam (12); The binocular measurement assembly (4) comprises a structured light source (41) arranged in the middle of the side beam (12) and two area array cameras (42) arranged at both ends of the side beam (12); the structured light source (41) is projected upward onto the contact line, and the two area array cameras (42) shoot upward images of a light curtain target of the structured light source (41) on the contact line; The electrical control unit (3) is arranged on the crossbeam (11) and is electrically connected to the human-machine interaction unit (2) and the binocular measurement component (4).

2. The detection device according to claim 1, characterized in that The crossbeam (11) is made of an integrated aluminum alloy square tube.

3. The detection device according to claim 1, characterized in that: The side beam (12) is machined from aluminum, and has an electromagnet connection base for the binocular measurement component mounted on the top. A guide mechanism is provided at each end of the side beam (12).

4. The detection device according to claim 1 or 3, characterized in that: The guide mechanism comprises a guide rail wheel and a guide wheel. The guide rail wheel is placed on the surface of the rail and the guide wheel is clamped on the inner side of the rail.

5. The detection device according to claim 1, characterized in that: The trolley traveling platform further comprises a track gauge measuring unit (5), wherein the track gauge measuring unit (5) is composed of a high-precision mechanical displacement sensor (51) and an inclination sensor (52).

6. The detection device according to claim 5, characterized in that: The high-precision mechanical displacement sensor (51) is mounted on the end of the T-shaped carrier trolley (1). During the running process, the tension assembly connected to the high-precision mechanical displacement sensor (51) can ensure that the left and right track gauge measuring wheel groups are always in close contact with the inner side of the rail to measure the displacement.

7. The detection device according to claim 5, characterized in that: The inclination sensor (52) is installed in the middle of the crossbeam (11) of the detection T-shaped carrier trolley (1), and measures the horizontal inclination of the T-shaped carrier trolley (1) to the ground, while the detection trolley platform always stays close to the track plane during its movement.

8. The detection device according to claim 1, characterized in that: The trolley running platform also includes a speed mileage measuring unit (6), which obtains the distance traveled by the vehicle between every two adjacent positioning points and the speed of the vehicle running per unit time by installing a speed sensor on the axle of the T-shaped carrier trolley (1).

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