System device capable of verifying absolute position precision of Anberg GRP1000 trolley indoors

Abstract

The utility model discloses a system device capable of verifying absolute position accuracy of an Anberg GRP1000 trolley indoors. A reusable absolute scene is established by using the total station and the fixed prism, and the position of the GRP1000 trolley is determined by measuring and calculating the absolute coordinate of the fixed prism; in the measurement process, the total station measures the angle and the distance between the trolley and the fixed prism, and then the absolute position of the GRP1000 trolley is calculated through measurement software. The left and right fixed prisms are arranged on the wall surface, the absolute position of the GRP1000 trolley is determined by positioning the absolute coordinates of the fixed prisms, and the transverse and vertical quantitative displacements of the GRP1000 trolley are matched for comparing displacement change values in software; the device provides a convenient verification operation method, is stable and reliable, and can conveniently complete verification work of the GRP1000 trolley in a room.

Description

Technical Field

[0001] The utility model relates to the technical field of track fine-tuning measuring instruments and equipment, in particular to a system device capable of verifying the absolute position accuracy of an Amberg GRP1000 trolley indoors. Background Art

[0002] The GRP1000 track geometry measuring instrument (hereinafter referred to as the GRP1000 trolley) produced by the Swiss company Amberg is an indispensable track fine-tuning measurement tool in the construction and operation and maintenance of high-speed railways. It is mainly used to measure the internal geometric parameters of the track, such as gauge, superelevation and triangular pits, as well as the external geometric parameters of the track, such as plane and elevation absolute position. With the introduction of China's high-speed rail technology and the rapid development of the high-speed rail network, the GRP1000 trolley has been widely used, but it has also exposed the problem that the corresponding specifications and standards cannot keep up in time. Moreover, during use, due to the lack of necessary regular inspections, the measurement accuracy of the GRP1000 trolley on the internal and external geometric parameters of the track cannot be ensured. Therefore, there is an urgent need to develop necessary detection methods to detect the corresponding parameters of the GRP1000 trolley. The existing reference specification "Railway Track Inspection Instrument" TR / T3147-2020 only gives the allowable measurement deviation of the external geometric parameters of static measurement and line test, but does not give a specific measurement method. At present, related inspection and verification work is usually carried out on outdoor tracks. However, there are some inconveniences in outdoor testing, which are mainly affected by external environmental conditions. For example, climate factors (such as wind, rain, temperature changes) and human interference (such as traffic, construction site) may interfere with the accuracy of measurement results. Therefore, we need to find a more suitable testing environment and means to overcome these problems. Summary of the invention

[0003] In order to solve the above-mentioned deficiencies and defects in the prior art, the inventor has designed and improved a system device that can calibrate the absolute position accuracy of the Amberg GRP1000 trolley indoors. This system device establishes a reusable absolute scene indoors, cooperates with the detection prism, total station, calibration platform, track and GRP1000 trolley, and realizes the accurate measurement and calibration of the track gauge and elevation parameters of the GRP1000 trolley. In this way, it can ensure that the GRP1000 trolley can perform indoor calibration operations indoors. Specifically, the utility model is implemented as follows:

[0004] A system device capable of calibrating the absolute position accuracy of an Amberg GRP1000 trolley indoors is placed indoors and comprises: a calibration platform placed on the indoor floor and used for supporting and placing a simulated track; two simulated tracks are arranged and installed on the calibration platform at a spacing of real tracks and used for placing a GRP1000 trolley for calibration; a detection prism comprises a left fixed prism, a right fixed prism and a trolley prism, and the left fixed prism and the right fixed prism are respectively installed on the indoor wall and arranged at the same height; the trolley prism is installed on the GRP1000 trolley through a column; a total station is placed indoors and connected to an on-board computer on the GRP1000 trolley, and is placed in front of the calibration platform and faces the detection prism, and is used for calculating the position data of the GRP1000 trolley through the detection prism.

[0005] Furthermore, the left fixed prism and the right fixed prism are both arranged on the wall behind the calibration platform, with a distance greater than 3m from the total station and a height greater than 1.5m, and the distance between the two is greater than 2m.

[0006] Furthermore, the left fixed prism and the right fixed prism include a mirror body, a prism rod and an embedded part. The embedded part is placed inside the wall with the screw hole exposed. The tail end of the prism rod can be screwed into the screw hole for fixation, and the mirror body is installed at the front end of the prism rod.

[0007] Furthermore, a mounting hole is provided at the upper end of the column, the trolley prism is mounted on the end of the prism rod, the tail end of the prism rod is inserted into the mounting hole, and the bottom end of the column is mounted on a mounting plate, which can be mounted on the top surface of the GRP1000 trolley through a clamping component.

[0008] Furthermore, the clamping component is a dovetail fixing groove arranged on the top of the GRP1000 trolley, the width of the mounting plate is smaller than the width of the groove body of the dovetail fixing groove, and the mounting plate can be inserted into the dovetail fixing groove; a clamping block and a tightening screw are arranged on the side of the dovetail fixing groove, and tightening the tightening screw can make the clamping block extend to clamp the mounting plate.

[0009] Furthermore, it also includes a verification accessory, which is a heightening block. The heightening block is divided into several blocks of different thicknesses and can be placed between the wheels of the GRP1000 trolley and the simulated track to increase the relative height of the GRP1000 trolley body.

[0010] The working principle of the utility model is as follows: a reusable absolute scene is established indoors by means of a left fixed prism, a right fixed prism and a total station, a calibration platform is placed in the absolute scene, the total station is leveled at a suitable position, the absolute coordinates of the two current prisms are measured and recorded, the trolley prism is installed in the middle of the GRP1000 trolley body, the GRP1000 trolley is placed on the calibration platform at the nearest and farthest positions from the total station, the total station is used to measure the left and right fixed prisms on the two walls in a rear intersection manner, the coordinates of the trolley prism in the two positions are measured respectively, and the coordinates are input into the GRP The virtual absolute coordinates of the center of the calibration platform are obtained in the measurement software of the on-board computer of the GRP1000 trolley. By manipulating the lateral movement of the calibration platform to change several predetermined quantitative lateral shifts, the change in the absolute plane position of the trolley is measured in the on-board computer to see if it is the same as the predetermined quantitative lateral shift each time. Subsequently, by using several specific thicknesses of height blocks placed under the wheels of the GRP1000 trolley, the height displacement of the GRP1000 trolley is changed, and the change in the absolute vertical position of the trolley is measured in the on-board computer to see if it is the same as the predetermined height block specifications each time. Thus, the indoor calibration work is completed.

[0011] Beneficial technical effects of the utility model:

[0012] (1) Improve the absolute position accuracy of the GRP1000 vehicle: By establishing a reusable absolute scene indoors and using a total station and a detection prism to calculate the vehicle's position data, the absolute position accuracy of the vehicle can be accurately measured and verified without having to work outdoors or consider the influencing factors of the external environment.

[0013] (2) Ensure the consistency and accuracy of measurement: By placing left and right fixed prisms on the wall, determining the absolute coordinates of the fixed prisms, and inputting and comparing the measurement data in the on-board computer, the consistency and accuracy of the measurement results can be guaranteed. Through the built-in lateral movement function of the calibration platform, the relative lateral movement and horizontal height change of the vehicle body can be adjusted in conjunction with the pad block, providing accurate height changes when calibrating displacement changes. The system device establishes a reusable absolute scene indoors and uses multiple fixed prisms for measurement and comparison, which can improve the stability and reliability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a system device that can verify the absolute position accuracy of the Amberg GRP1000 trolley indoors according to the utility model;

[0015] Figure 2 This is a three-dimensional diagram of the Amberg GRP1000 trolley and calibration platform structure;

[0016] Figure 3It is a schematic diagram of the installation structure of the left and right fixed prisms;

[0017] Figure 4 This is a three-dimensional diagram of the structure of the trolley prism installed on the GRP1000 trolley;

[0018] Figure 5 This is a structural diagram of the use of pad blocks in vertical height verification operations;

[0019] Among them: 1-calibration table, 2-simulated track, 3-total station, 4-GRP1000 trolley, 5-left fixed prism, 6-right fixed prism, 7-trolley prism, 8-column, 9-mirror body, 10-prism rod, 11-embedded parts, 12-dovetail fixing groove, 13-mounting plate, 14-clamping block, 15-tensioning screw, 16-heightening block. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0021] Embodiment 1: A system device capable of verifying the absolute position accuracy of the Amberg GRP1000 trolley 4 indoors, used for verifying the absolute position accuracy of the Amberg GRP1000 trolley 4 indoors, and comprising the following components and steps:

[0022] Verification table 1: Use the verification table 1 of Ruibang, placed on the indoor floor, to support the simulated track 2. Install two simulated tracks 2 on the verification table 1, arranged at the spacing of the real tracks, and use them to place the GRP1000 trolley 4 for verification.

[0023] Detection prism: including left fixed prism 5, right fixed prism 6 and a trolley prism 7. The left fixed prism 5 and the right fixed prism 6 are respectively installed on the indoor wall and arranged at the same height. The trolley prism 7 is installed on the GRP1000 trolley 4 through the column 8. The upper end of the column 8 has a mounting hole. The trolley prism 7 is installed at the end of the prism rod 10. The tail end of the prism rod 10 is inserted into the mounting hole. The bottom end of the column 8 is installed on the mounting plate 13. The mounting plate 13 is installed on the top surface of the GRP1000 trolley 4 through the clamping component.

[0024] Total station 3: Placed indoors, connected to the onboard computer on the GRP1000 trolley 4. Total station 3 is placed in front of the calibration platform 1, facing the detection prism. Total station 3 measures the position data of the GRP1000 trolley 4 through the detection prism.

[0025] Left fixed prism 5 and right fixed prism 6 are arranged on the wall behind the calibration platform 1, with a distance of more than 3m from the total station 3 and a height of more than 1.5m, and the distance between the two is more than 2m. They include a mirror body 9, a prism rod 10 and an embedded part 11. The embedded part 11 is placed inside the wall, with the screw hole exposed. The tail end of the prism rod 10 can be screwed into the screw hole for fixing, and the mirror body 9 is installed at the front end of the prism rod 10.

[0026] Verification accessories: a heightening block 16, which is divided into several blocks of different thicknesses and is used to be placed between the wheels of the GRP1000 trolley 4 and the simulated track 2 to raise the relative height of the body of the GRP1000 trolley 4.

[0027] The specific steps for use are as follows:

[0028] 1. Establish a reusable absolute scene indoors, use the left fixed prism 5 and the right fixed prism 6, level the total station 3 at a suitable position, and measure the absolute coordinates of the two current fixed prisms.

[0029] 2. Install the trolley prism 7 in the middle of the GRP1000 trolley 4.

[0030] 3. Place the GRP1000 trolley 4 at the nearest and farthest positions on the calibration platform 1 respectively, use the total station 3 to measure the left and right fixed prisms 6 on the wall by rear intersection, obtain the coordinates of the trolley prism 7, and input the coordinates into the measurement software of the on-board computer of the GRP1000 trolley 4 to obtain the virtual absolute coordinates of the center of the calibration platform 1.

[0031] 4. Operate the calibration platform 1, use the built-in lateral movement function of the calibration platform 1 to perform quantitative lateral movement, measure the change in the absolute plane position of the trolley, and record and compare it in the on-board computer.

[0032] 5. Use different thicknesses of spacers 16 to place under the four wheels of the GRP1000 trolley to verify the relative height change, measure the change in the absolute vertical position of the trolley, and record and compare it in the on-board computer.

[0033] The above steps can be used to calibrate the absolute position accuracy of the Amberg GRP1000 car 4 indoors, and obtain the calibration results through measurement and comparison.

[0034] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or the equivalent forms of such scope and boundaries.

Claims

1. A system device that can verify the absolute position accuracy of the Amberg GRP1000 trolley indoors, placed indoors, characterized by include: A test platform (1) is placed on the floor of a room and is used to support and place the simulated track (2); Simulated tracks (2), two simulated tracks (2), arranged at the same spacing as the real tracks and installed on the calibration platform (1), for placing the GRP1000 trolley (4) for calibration; The detection prism comprises a left fixed prism (5), a right fixed prism (6) and a trolley prism (7), wherein the left fixed prism (5) and the right fixed prism (6) are respectively installed on the walls of the room at the same height; the trolley prism (7) is installed on the GRP1000 trolley (4) through a column (8); The total station (3), which is placed indoors and connected to an onboard computer on the GRP1000 trolley (4), is placed in front of the calibration platform (1) and faces the detection prism, and is used to calculate the position data of the GRP1000 trolley (4) through the detection prism.

2. The system device capable of verifying the absolute position accuracy of the Amberg GRP1000 vehicle indoors according to claim 1 is characterized in that: The left fixed prism (5) and the right fixed prism (6) are both arranged on the wall behind the calibration platform (1), at a distance of more than 3m from the total station (3), at a height of more than 1.5m, and the distance between the two is more than 2m.

3. The system device capable of verifying the absolute position accuracy of the Amberg GRP1000 trolley indoors according to claim 2 is characterized in that: The left fixed prism (5) and the right fixed prism (6) comprise a mirror body (9), a prism rod (10) and an embedded part (11); the embedded part (11) is placed inside the wall with the screw hole exposed; the tail end of the prism rod (10) can be screwed into the screw hole for fixation; and the mirror body (9) is mounted on the front end of the prism rod (10).

4. The system device capable of verifying the absolute position accuracy of the Amberg GRP1000 vehicle indoors according to claim 1 is characterized in that: The upper end of the column (8) is provided with a mounting hole, the trolley prism (7) is mounted on the end of the prism rod (10), the tail end of the prism rod (10) is inserted into the mounting hole, the bottom end of the column (8) is mounted on a mounting plate (13), and the mounting plate (13) can be mounted on the top surface of the GRP1000 trolley (4) through a clamping component.

5. The system device capable of verifying the absolute position accuracy of the Amberg GRP1000 trolley indoors according to claim 4 is characterized in that: The clamping component is a dovetail fixing groove (12) arranged on the top of the GRP1000 trolley (4); the width dimension of the mounting plate (13) is smaller than the width dimension of the groove body of the dovetail fixing groove (12); the mounting plate (13) can be inserted into the dovetail fixing groove (12); a clamping block (14) and a tensioning screw (15) are arranged on the side of the dovetail fixing groove (12); tightening the tensioning screw (15) can make the clamping block (14) extend to clamp the mounting plate (13).

6. The system device capable of verifying the absolute position accuracy of the Amberg GRP1000 vehicle indoors according to claim 1, characterized in that: The invention also comprises a calibration accessory, which is a padding block (16). The padding block (16) is divided into a plurality of blocks of different thicknesses and can be placed between the wheels of the GRP1000 trolley (4) and the simulated track (2) to raise the relative height of the body of the GRP1000 trolley (4).

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