Total station measurement system and measuring instrument

Abstract

The present invention discloses a total station type measurement system and a measuring instrument. The measurement system includes a measuring instrument, a positioning system and a processing terminal. The measuring instrument includes a total station and a mobile device. The mobile device transfers the total station to different measuring points to measure the target point. The positioning system locates the coordinates of the total station and the measuring station in the coordinate system constructed by the positioning system, so as to determine the relative position coordinates of the total station and the measuring station when measuring at each measuring point. In this way, the centering step of the total station can be omitted, and the measurement efficiency is improved. The processing terminal determines the measurement data of the target point measured by the total station at each measuring point according to the corresponding relative position coordinates and the position coordinates and elevation of the measuring station, as well as the measurement results of the total station at each measuring point, and analyzes the measurement data of all measuring points to obtain the measurement data of the target point, so as to reduce the random error of the measurement data and improve the measurement accuracy.

Description

Technical Field

[0001] The present invention relates to the technical field of measuring instruments, and in particular to a total station type measuring system and a measuring instrument. Background Art

[0002] A total station is a high-tech measuring instrument that integrates optics, mechanics and electronics. After the total station is installed at the measuring station, it can measure the horizontal angle, vertical angle, distance, height difference and other data of the target point. Therefore, it is widely used in precision engineering measurement or deformation monitoring fields such as large-scale above-ground buildings and underground tunnel construction.

[0003] The total station currently used must be centered before starting measurement, so that the midpoint of the total station and the measuring station are on the same plumb line to determine the position coordinates of the total station. In addition, the total station needs to be kept in the centered position during the measurement process and cannot be moved. Therefore, the measured data is the measurement data of the target point relative to the total station at the same measuring point. During the measurement process, the total station is sometimes affected by factors such as the environment and the observer, resulting in a decrease in measurement accuracy. Therefore, there is an urgent need for a technology that can improve the measurement accuracy of the total station. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a total station measurement system and a measurement instrument, which can improve measurement efficiency and measurement accuracy.

[0005] In a first aspect, a total station measurement system is provided, comprising:

[0006] A total station and a mobile device, wherein the total station is mounted on the mobile device, and the mobile device is configured to transfer the total station to different measuring points to measure the target point;

[0007] A positioning system configured to locate the relative position coordinates of the total station and the measuring station when measuring at different measuring points;

[0008] The processing terminal is configured to fuse the measurement results of the total station at all measurement points and determine the measurement data of the target point in combination with the corresponding relative position coordinates.

[0009] In combination with the first aspect, in a first implementable manner of the first aspect, the mobile device includes a bracket and a linear drive module, the linear drive module is horizontally fixed on the top of the bracket, and the total station is mounted on a moving seat of the linear drive module.

[0010] In combination with the first aspect, in a second possible implementation manner of the first aspect, the positioning system includes:

[0011] a magnetic field generator configured to generate an electromagnetic field with a known magnetic field distribution;

[0012] an electromagnetic probe configured to detect the magnetic field strength at the measuring station and to detect the magnetic field strength at different measuring points of the total station;

[0013] The positioning terminal is configured to determine the relative position coordinates of the total station and the measuring station when measuring at different measuring points based on the detection data of the electromagnetic probe.

[0014] In combination with the second implementable manner of the first aspect, in a third implementable manner of the first aspect, the electromagnetic probe includes a needle body, a handle is provided at the needle tail of the needle body, an electromagnetic detector is provided at the needle tip, and a signal line of the electromagnetic detector extends along the needle body to the tail end of the handle and extends out.

[0015] In combination with the third implementable manner of the first aspect, in a fourth implementable manner of the first aspect, a plurality of marking points for calibrating the center of the total station are provided on the total station.

[0016] In combination with the first aspect, in a fifth implementation manner of the first aspect, the positioning system includes:

[0017] a magnetic field generator configured to generate an electromagnetic field with a known magnetic field distribution;

[0018] A magnetic field sensor configured to detect a magnetic field strength at a measuring station;

[0019] an electromagnetic sensor, disposed at the center of the total station and configured to detect the magnetic field strength at the center of the total station;

[0020] The positioning terminal is configured to determine the relative position coordinates of the total station and the measuring station when measuring at different measuring points based on the detection data of the magnetic field sensor and the electromagnetic sensor.

[0021] In a second aspect, a total station type measuring instrument is provided, including a total station and a mobile device, wherein the total station is mounted on the mobile device.

[0022] In combination with the second aspect, in a first implementable manner of the second aspect, the mobile device includes a bracket and a linear drive module, the linear drive module is horizontally fixed on the top of the bracket, and the total station is mounted on a moving seat of the linear drive module.

[0023] In combination with the second aspect, in a second implementable manner of the second aspect, an electromagnetic sensor is provided at the center of the total station, and the electromagnetic sensor is configured to detect the magnetic field strength at the center of the total station.

[0024] In combination with the second aspect, in a third possible implementation of the second aspect, a plurality of marking points for calibrating the center of the total station are arranged on the outer surface of the total station.

[0025] Beneficial effects: By adopting the total station measurement system and the measuring instrument of the present invention, the total station can be transferred to different measuring points to measure the target point through the set mobile device, and the relative position of the total station and the measuring station point when measuring at each measuring point can be located through the set positioning system, and combined with the known position coordinates of the measuring station point, the position coordinates of the total station at each measuring point can be determined. Therefore, in the technical solution of the present invention, it is not necessary to center the total station, which reduces the measurement method steps of the total station and improves the measurement efficiency. Moreover, the measurement results obtained by the total station at different measuring points can be fused and processed through the processing terminal to obtain the measurement data of the target point, thereby reducing the influence of factors such as the environment and the observer, and improving the measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation of the present invention, the following will briefly introduce the drawings required for use in the specific implementation. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0027] Figure 1 A principle block diagram of a total station measurement system provided by an embodiment of the present invention;

[0028] Figure 2 A schematic diagram of the structure of an electromagnetic probe provided by an embodiment of the present invention;

[0029] Figure 3 A principle block diagram of a total station measurement system provided by another embodiment of the present invention;

[0030] Figure 4 A schematic diagram of the structure of a total station provided by an embodiment of the present invention;

[0031] Figure 5 A schematic diagram of the principle of measuring elevation using a total station measurement system provided by an embodiment of the present invention;

[0032] Figure 6 A schematic diagram of the principle of measuring the coordinates of a measuring station by a total station measurement system provided by an embodiment of the present invention;

[0033] Reference numerals:

[0034] 1-total station, 2-processing terminal, 3-bracket, 4-linear drive module, 5-magnetic field generator, 6-electromagnetic probe, 7-positioning terminal, 8-needle body, 9-electromagnetic detector, 10-handle, 11-marking point, 12-magnetic field sensor. DETAILED DESCRIPTION

[0035] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0036] Embodiment 1

[0037] like Figure 1 The principle block diagram of the total station measurement system shown in the figure includes:

[0038] A total station 1 and a mobile device, wherein the total station 1 is mounted on the mobile device, and the mobile device is configured to transfer the total station 1 to different measuring points to measure a target point;

[0039] A positioning system configured to locate the relative position coordinates of the total station 1 and the measuring station when measuring at different measuring points;

[0040] The processing terminal 2 is configured to fuse the measurement results of the total station 1 at all measurement points and determine the measurement data of the target point in combination with the corresponding relative position coordinates.

[0041] Specifically, the measurement system consists of a total station 1, a mobile device, a positioning system and a processing terminal 2. The total station 1 is mounted on the mobile device, and the mobile device can transfer the total station 1 to different measurement points to measure the target point, and send the measurement results measured at each measurement point to the processing terminal 2. The positioning system can locate the coordinates of the total station 1 and the measuring station in the coordinate system constructed by the positioning system, so that the positioning system can determine the relative position coordinates of the total station 1 and the measuring station when measuring at each measuring point. In this way, the centering step of the total station 1 can be omitted during the measurement process, thereby improving the measurement efficiency.

[0042] The positioning system can send the relative position coordinates of the positioning to the processing terminal 2. The processing terminal 2 can determine the position coordinates and elevation of the total station 1 at each measuring point in combination with the corresponding relative position coordinates and the position coordinates and elevation of the preset measuring station. Combined with the measurement results of the total station 1 at each measuring point, the processing terminal 2 can determine the measurement data of the total station 1 for the target point at each measuring point, and then obtain the final measurement data about the target point through algorithms such as averaging, so as to reduce random errors in the measurement data and improve measurement accuracy.

[0043] Take measuring the elevation of the target point as an example. Figure 5 As shown, the mobile device can be set up at a survey station with a known elevation H1, and a prism with a known height can be installed at the target point, and then the total station 1 can be placed on the mobile device and leveled. After that, the total station 1 can be rotated to aim at the prism, and the rotation angle a and distance s of the total station 1 can be measured.

[0044] The total station 1 can send the measured angle distance data to the processing terminal 2. At the same time, the positioning system can send the relative position coordinates of the positioned total station 1 and the measuring station to the processing terminal 2. The processing terminal 2 can determine the height difference h2 between the total station 1 and the measuring station through the relative position coordinates, and then calculate the height difference h3 between the prism and the total station 1 through the rotation angle and distance. Finally, the elevation of the target point can be calculated by combining the elevation H1 of the measuring station, the height difference h2 between the total station 1 and the measuring station, the height difference h3 between the prism and the total station 1, and the prism height h1. The calculation formula is as follows:

[0045]

[0046] Afterwards, the mobile device can randomly transfer the total station 1 to the next measurement point, and the same method can be used to determine the elevation of the target point measured by the total station 1 at the next measurement point. The processing terminal 2 can perform data analysis on the elevation of the target point measured by the total station 1 at different measurement points, thereby determining the elevation of the target point.

[0047] By using the embodiments of the present invention, the three-dimensional coordinates of unknown measuring stations can also be measured. Figure 6 As shown, the mobile device can be set up at the survey station, and then the total station 1 can be placed on the mobile device and leveled. Afterwards, the angle and distance of the total station 1 relative to two known points with known position coordinates and elevations can be measured by the back intersection measurement method. The total station 1 can send the measured angle distance data to the processing terminal 2, and the processing terminal 2 can determine the position coordinates and elevation of the total station 1 according to the preset position coordinates and elevation of the known points. At the same time, the positioning system can send the relative position coordinates of the positioned total station 1 and the survey station to the processing terminal 2, and the processing terminal 2 can determine the three-dimensional coordinates of the survey station by combining the position coordinates and elevation of the total station 1 and the relative position coordinates of the total station 1 and the survey station.

[0048] Afterwards, the mobile device can randomly transfer the total station 1 to the next measuring point, and the same method can be used to determine the three-dimensional coordinates of the measuring station measured by the total station 1 at the next measuring point. The processing terminal 2 can perform data analysis on the three-dimensional coordinates of the measuring station measured by the total station 1 at different measuring points, thereby determining the three-dimensional coordinates of the measuring station.

[0049] In this embodiment, optionally, Figure 1As shown, the mobile device includes a bracket 3 and a linear drive module 4, the linear drive module 4 is horizontally fixed on the top of the bracket 3, and the total station 1 is mounted on the moving seat of the linear drive module 4. Specifically, the mobile device can be composed of a bracket 3 and a linear drive module 4, the bracket 3 can be a tripod used by the existing total station 1, and the linear drive module 4 can be horizontally fixed on the top of the bracket 3. The total station 1 can be detachably fixed to the moving seat of the linear drive module 4 by bolts. The total station 1 can be transferred to different measurement points for measurement through the linear drive module 4.

[0050] It should be understood that the embodiment of the present application is merely exemplified by the linear drive module 4, but the present invention is not limited thereto, and the mobile device may also be other mobile devices, such as an arc track, etc.

[0051] In this embodiment, optionally, Figure 1 As shown, the positioning system includes:

[0052] A magnetic field generator 5, configured to generate an electromagnetic field with a known magnetic field distribution;

[0053] The electromagnetic probe 6 is configured to detect the magnetic field strength at the measuring station, and detect the magnetic field strength at different measuring points of the total station 1;

[0054] The positioning terminal 7 is configured to determine the relative position coordinates of the total station 1 and the measuring station point when measuring at different measuring points according to the detection data of the electromagnetic probe 6.

[0055] The positioning system is an electromagnetic positioning system composed of a magnetic field generator 5, an electromagnetic probe 6 and a positioning terminal 7, wherein the magnetic field generator 5 and the electromagnetic probe 6 are both connected to the positioning terminal 7 by signal. The positioning terminal 7 can control the magnetic field generator 5 to generate an electromagnetic field with a known magnetic field strength distribution in the measurement area, and can detect the magnetic field strength at the measuring station and different measuring points through the electromagnetic probe 6. Specifically, the electromagnetic probe 6 can be used to touch the measuring station and the measuring point. The electromagnetic probe 6 can send the detected magnetic field strength signal to the positioning terminal 7, and the positioning terminal 7 can determine the magnetic field strength data of the measuring station and the measuring point through the magnetic field strength signal, thereby locating the coordinates of the measuring station and the measuring point in the magnetic field coordinate system constructed with the magnetic field generator 5 as the origin, thereby determining the relative position coordinates of the total station 1 with the measuring station when measuring at different measuring points.

[0056] In the embodiments of the present application, only the electromagnetic positioning system is used as an example, but the present invention is not limited thereto, and the positioning system may also adopt other positioning technologies, such as an optical positioning system.

[0057] In this embodiment, optionally, Figure 2As shown, the electromagnetic probe 6 includes a needle body 8, a handle 10 is provided at the needle tail of the needle body 8, an electromagnetic detector 9 is provided at the needle tip, and the signal line of the electromagnetic detector 9 extends along the needle body 8 to the tail end of the handle 10 and extends out. Specifically, the electromagnetic probe 6 is composed of the needle body 8 and the electromagnetic detector 9. The electromagnetic detector 9 is provided at the needle tip of the needle body 8 and can detect the magnetic field strength at the needle tip. The electromagnetic detector 9 can be an electromagnetic sensor. A handle 10 is provided at the tail of the needle body 8 for easy holding. The signal line of the electromagnetic detector 9 can extend from the needle tip to the tail end of the handle 10 along the needle body 8, and pass through the handle 10 to connect to the signal connector, and connect to the positioning terminal 7 through the signal connector.

[0058] In this embodiment, optionally, Figure 4 As shown, the total station 1 is provided with a plurality of marking points 11 for calibrating the center of the total station 1. Four marking points 11 can be sprayed on the outer surface of the total station 1, and the four marking points 11 can be arranged on the same plane, wherein the line between two marking points 11 intersects with the line between another two marking points 11, and the intersection is the center point of the total station 1.

[0059] The positioning terminal 7 can detect the magnetic field strength of the four marking points 11 through the electromagnetic probe 6 to locate the coordinates of the four marking points 11 in the magnetic field coordinate system. The positioning terminal 7 can determine the coordinates of the center point of the total station 1 in the magnetic field coordinate system based on the coordinates of the four marking points 11, and then accurately locate the relative position coordinates between the center point of the total station 1 and the measuring station in the magnetic field coordinate system in combination with the coordinates of the measuring station in the magnetic field coordinate system, thereby further improving the measurement accuracy.

[0060] Embodiment 2

[0061] The second embodiment is substantially the same as the first embodiment, and the main difference is that the positioning system includes:

[0062] A magnetic field generator 5, configured to generate an electromagnetic field with a known magnetic field distribution;

[0063] A magnetic field sensor 12, configured to detect the magnetic field strength at a measuring station;

[0064] An electromagnetic sensor, disposed at the center of the total station 1 and configured to detect the magnetic field strength at the center of the total station 1;

[0065] The positioning terminal 7 is configured to determine the relative position coordinates of the total station 1 and the measuring station point when measuring at different measuring points based on the detection data of the magnetic field sensor 12 and the electromagnetic sensor.

[0066] like Figure 3As shown, the positioning system is an electromagnetic positioning system composed of a magnetic field generator 5, a magnetic field sensor 12, an electromagnetic sensor and a positioning terminal 7, wherein the magnetic field generator 5, the magnetic field sensor 12 and the electromagnetic sensor are all connected to the positioning terminal 7 by signal. The positioning terminal 7 can control the magnetic field generator 5 to generate an electromagnetic field with a known magnetic field intensity distribution in the measurement area, and can detect the magnetic field intensity of the measuring station and the total station 1 at different measuring points through the magnetic field sensor 12 and the electromagnetic sensor. The magnetic field sensor 12 and the electromagnetic sensor can send the detected magnetic field intensity signal to the positioning terminal 7, and the positioning terminal 7 can determine the magnetic field intensity data of the measuring station and the total station 1 at the measuring point through the magnetic field intensity signal, so as to locate the coordinates of the measuring station and the center point of the total station 1 in the magnetic field coordinate system constructed with the magnetic field generator 5 as the origin, thereby determining the relative position coordinates of the center point of the total station 1 and the measuring station when measuring at different measuring points.

[0067] Embodiment 3

[0068] like Figure 3 As shown, the surveying instrument includes a total station 1 and a mobile device, and the total station 1 is mounted on the mobile device.

[0069] Specifically, the measuring instrument is composed of a total station 1 and a mobile device. The total station 1 can be mounted on the mobile device, and the total station 1 can be transferred to different measuring points by the mobile device to measure the target point, and the measurement results measured at each measuring point are sent to the processing terminal 2. The positioning system can locate the coordinates of the total station 1 and the measuring station in the coordinate system constructed by the positioning system, so that the positioning system can determine the relative position coordinates of the total station 1 and the measuring station when measuring at each measuring point. In this way, the centering step of the total station 1 can be omitted during the measurement process, thereby improving the measurement efficiency.

[0070] The positioning system can send the relative position coordinates of the positioning to the processing terminal 2. The processing terminal 2 can determine the position coordinates and elevation of the total station 1 at each measuring point in combination with the corresponding relative position coordinates and the position coordinates and elevation of the preset measuring station. Combined with the measurement results of the total station 1 at each measuring point, the processing terminal 2 can determine the measurement data of the total station 1 for the target point at each measuring point, and then obtain the final measurement data about the target point through algorithms such as averaging, so as to reduce random errors in the measurement data and improve measurement accuracy.

[0071] In this embodiment, optionally, the mobile device includes a bracket 3 and a linear drive module 4, the linear drive module 4 is horizontally fixed on the top of the bracket 3, and the total station 1 is mounted on the moving seat of the linear drive module 4. Specifically, the mobile device can be composed of a bracket 3 and a linear drive module 4, the bracket 3 can be a tripod used by the existing total station 1, and the linear drive module 4 can be horizontally fixed on the top of the bracket 3. The total station 1 can be detachably fixed to the moving seat of the linear drive module 4 by bolts. The total station 1 can be transferred to different measurement points for measurement through the linear drive module 4.

[0072] In this embodiment, optionally, an electromagnetic sensor is provided at the center of the total station 1, and the electromagnetic sensor is configured to detect the magnetic field strength at the center of the total station 1. The electromagnetic sensor can be provided at the center of the total station 1, and the electromagnetic sensor can detect the magnetic field strength of the center of the total station 1 in the electromagnetic field generated by the magnetic field generator 5, and send the detected magnetic field strength signal to the positioning terminal 7, and the positioning terminal 7 can locate the coordinates of the center of the total station 1 in the magnetic field coordinate system through the received magnetic field strength signal.

[0073] Embodiment 4

[0074] The fourth embodiment is substantially the same as the third embodiment, the main difference being that Figure 4 As shown, a plurality of marking points 11 for calibrating the center of the total station 1 are arranged on the outer surface of the total station 1 .

[0075] Four marking points 11 can be sprayed on the outer surface of the total station 1. The four marking points 11 can be set on the same plane, and the line between two marking points 11 intersects with the line between another two marking points 11, and the intersection is the center point of the total station 1.

[0076] The positioning terminal 7 can detect the magnetic field strength of the four marking points 11 through the electromagnetic probe 6 to locate the coordinates of the four marking points 11 in the magnetic field coordinate system. The positioning terminal 7 can determine the coordinates of the center point of the total station 1 in the magnetic field coordinate system based on the coordinates of the four marking points 11, and then accurately locate the relative position coordinates between the center point of the total station 1 and the measuring station in the magnetic field coordinate system in combination with the coordinates of the measuring station in the magnetic field coordinate system, thereby further improving the measurement accuracy.

[0077] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A total station measurement system, characterized in that: include: A total station and a mobile device, wherein the total station is mounted on the mobile device, and the mobile device is configured to transfer the total station to different measuring points to measure a target point; A positioning system configured to locate the three-dimensional coordinates of the total station and the measuring station in a coordinate system constructed by the positioning system, so as to determine the relative position coordinates of the total station and the measuring station when measuring at each measuring point; The processing terminal is configured to determine the three-dimensional coordinates and elevation of the total station at each measuring point in combination with the corresponding relative position coordinates and the position coordinates and elevation of the preset measuring station, determine the measurement data of the total station for the target point at each measuring point in combination with the measurement results of the total station at each measuring point, and then obtain the final measurement data about the target point through an averaging algorithm.

2. The total station measurement system according to claim 1, characterized in that: The mobile device comprises a bracket and a linear drive module, the linear drive module is horizontally fixed on the top of the bracket, and the total station is mounted on a moving seat of the linear drive module.

3. The total station measurement system according to claim 1, characterized in that: The positioning system comprises: a magnetic field generator configured to generate an electromagnetic field with a known magnetic field distribution; an electromagnetic probe configured to detect the magnetic field strength at the measuring station and to detect the magnetic field strength at different measuring points of the total station; The positioning terminal is configured to determine the relative position coordinates of the total station and the measuring station when measuring at different measuring points based on the detection data of the electromagnetic probe.

4. The total station type measurement system according to claim 3, characterized in that: The electromagnetic probe comprises a needle body, a handle is arranged at the needle tail of the needle body, an electromagnetic detector is arranged at the needle tip, and a signal line of the electromagnetic detector extends along the needle body to the handle tail end and then extends out.

5. The total station type measurement system according to claim 3, characterized in that: The total station is provided with a plurality of marking points for calibrating the center of the total station.

6. The total station type measurement system according to claim 1, characterized in that: The positioning system comprises: a magnetic field generator configured to generate an electromagnetic field with a known magnetic field distribution; A magnetic field sensor configured to detect a magnetic field strength at a measuring station; an electromagnetic sensor, disposed at the center of the total station and configured to detect the magnetic field strength at the center of the total station; The positioning terminal is configured to determine the relative position coordinates of the total station and the measuring station when measuring at different measuring points based on the detection data of the magnetic field sensor and the electromagnetic sensor.

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