A surveying instrument for construction engineering cost

Abstract

The application relates to the technical field of surveying equipment, and discloses a surveying instrument for construction engineering cost, wherein after a controller obtains images shot by a leveling camera, the center point O of a first ball head bottom image is first made to coincide with a station point in a lower image by controlling a walking mechanism to move, then a driver is controlled to drive the first ball head to rotate, and a vertical mark point is moved to the center point O of the first ball head bottom image; and the controller is connected with a control end through a wireless network. An image shot by a high-precision camera is taken as a reference, the angle of a surveying head is adjusted, the inclination angle of the surveying head after leveling is within the compensation range of a double-shaft compensator, the measurement accuracy of the surveying instrument is guaranteed, and the surveying instrument can be remotely controlled to move and level, so that in actual work, a surveying personnel can hold a prism to remotely control the surveying instrument to measure, one-person measurement is realized, and the labor cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of surveying equipment technology, specifically a surveying instrument for construction project cost estimation. Background Technology

[0002] Total stations have a variety of uses, including angle measurement, distance (slope distance, horizontal distance, elevation difference) measurement, three-dimensional coordinate measurement, traverse surveying, intersection point measurement, and layout surveying. They are the most widely used surveying instruments.

[0003] When using a total station, the tilt of its vertical axis can cause deviations in the measurement results. Therefore, the total station needs to be leveled before use. Generally, leveling is done by manually observing the movement of the bubble to determine the direction that needs adjustment. However, since changes in angles in one direction will affect angles in other directions in three-dimensional space, adjustments need to be made one angle at a time, which is a rather tedious process.

[0004] Secondly, when conducting surveying, it is usually necessary to have one person operate the total station and another person hold the prism, that is, at least two people are required to operate it, which requires a high labor cost. Summary of the Invention

[0005] To address the shortcomings of the aforementioned background technology, this invention provides a technical solution for a surveying instrument used in construction engineering cost estimation. Using images captured by a high-precision camera as a reference, the angle of the surveying head is adjusted so that the tilt angle of the leveled surveying head is within the compensation range of a dual-axis compensator, ensuring the measurement accuracy of the surveying instrument. Simultaneously, the movement and leveling can be remotely controlled. Therefore, in practical work, surveyors can remotely control the surveying instrument using a handheld prism, enabling single-person measurement, reducing labor costs, and solving the problems raised in the background technology.

[0006] The present invention provides the following technical solution: a surveying instrument for construction engineering cost estimation, comprising a support platform, a first ball seat connected to the support platform, a circular channel in the middle of the support platform, and a walking mechanism connected to the support platform via a support frame;

[0007] A surveying head, the surveying head having a biaxial compensator inside, a spherical first ball head fixedly connected to the bottom of the surveying head, the first ball head being assembled into a first ball seat, the bottom of the first ball head penetrating the bottom of the first ball seat, the surface of the first ball head having vertical marking points, the line connecting the vertical marking points to the center of the ball coinciding with the vertical axis of the surveying head, and the first ball seat having at least two sets of drivers that drive the first ball head to rotate around the center from two directions respectively;

[0008] A leveling camera, wherein the leveling camera has a camera that can always remain vertical and can vertically capture photos from above and below;

[0009] The controller, after acquiring the image captured by the leveling camera, first controls the walking mechanism to move so that the center point O of the bottom image of the first ball head coincides with the station in the image below, and then controls the driver to drive the first ball head to rotate, moving the vertical marker point to the center point O of the bottom image of the first ball head. The controller is connected to a control terminal via a wireless network.

[0010] Preferably, the actuator is provided in two sets, and the line connecting the center of the two sets of actuators to the center of the sphere is perpendicular to each other.

[0011] Preferably, a tripod consisting of three sets of telescopic rods is provided between the first ball seat and the support platform.

[0012] Preferably, when moving the image of the vertical marker point to the center point O of the bottom image of the first ball head, the telescopic rod is first controlled to extend and retract so that the image of the vertical marker point moves to a position where the distance from the center point O is less than a set value d, and then the driver is controlled to drive the first ball head to rotate so that the image of the vertical marker point moves to coincide with the center point O of the bottom image of the first ball head.

[0013] Preferably, the actuator is a concave rotating roller, the side of the actuator exactly matches the side wall of the first ball head, the plane containing the axes of the two actuators passes through the center of the first ball head, and the first ball head is connected to a drive box, which is used to drive or lock the first ball head.

[0014] Preferably, the middle part of the first ball head is rough, while the other parts are smooth.

[0015] Preferably, the leveling camera includes a second ball seat, a second ball head is movably connected to the second ball seat, a counterweight rod is fixedly connected to the lower side of the second ball head, and cameras are provided at the bottom of the counterweight rod and the top of the second ball head. The weight of the counterweight rod makes the two cameras vertical.

[0016] Preferably, the side wall of the second ball seat is provided with a braking block, and one side of the braking block is provided with an electromagnet and a return spring. The braking block vibrates under the action of the electromagnet and the return spring.

[0017] Preferably, when shooting begins, the electromagnet is energized and de-energized at a set frequency until the k images captured by the two cameras no longer change.

[0018] The present invention has the following beneficial effects:

[0019] 1. This surveying instrument for construction engineering cost estimation uses the image captured by the vertical leveling camera as a reference to adjust the surveying head. Since the leveling camera is a whole, its center of gravity remains unchanged, making it easier to maintain verticality and less affected by external factors. Secondly, the vertical axis of the surveying head passes through the center of the first ball head, which is the geometric center of the first ball head. Its position does not change with the angle, realizing the goal of first aligning with the site position and then leveling, so that no further movement is needed after leveling.

[0020] 2. This surveying instrument for construction engineering cost estimation uses images captured by a high-precision camera as a reference to adjust the angle of the surveying head. After leveling, the tilt angle of the surveying head is within the compensation range of the dual-axis compensator, ensuring the measurement accuracy of the surveying instrument. Since there is no need to consider the relationship between various angles during the leveling process, the adjustment process is simpler and more objective. Whether it is automatic adjustment or manual control leveling, it has high leveling efficiency.

[0021] 3. This surveying instrument used for construction project cost estimation can be remotely controlled for movement and leveling. Therefore, in actual work, surveyors can use a handheld prism to remotely control the surveying instrument for measurement, enabling single-person measurement and reducing labor costs. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a control block diagram of the present invention;

[0024] Figure 3 This is a schematic diagram of an image captured by the leveling camera in this invention;

[0025] Figure 4 This is a top view of the first ball seat in this invention;

[0026] Figure 5 This is a front view of the first ball seat and the first ball head in this invention;

[0027] Figure 6 This is a front view of the leveling camera in this invention;

[0028] Figure 7 This is a top view of the leveling camera in this invention.

[0029] In the diagram: 1. Support platform; 2. Surveying head; 3. First ball head; 4. First ball seat; 5. Driver; 6. Leveling camera; 61. Second ball seat; 62. Second ball head; 63. Counterweight rod; 64. Brake block; 65. Electromagnet; 66. Return spring; 7. Vertical marker point; 8. Telescopic rod; 9. Controller; 10. Control end; 11. Drive box; 12. Rough surface. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figures 1-2 A surveying instrument for construction engineering cost estimation includes a support platform 1, a first ball seat 4 connected to the support platform 1, the support platform 1 being detachably connected to a support frame, the support platform 1 having a circular channel in the middle, the support platform 1 being snapped or bolted to the support frame, and the support platform 1 being mounted on a walking mechanism via a bracket, the walking mechanism being a wheeled, tracked, or four-legged robot walking mechanism, etc.

[0032] The surveying head 2 has a measuring head for measurement, a targeting camera for aiming at the target, and a drive structure for driving the surveying head 2 to swing up and down and rotate. The surveying head 2 has a dual-axis compensator inside. These structures have been adopted by existing total stations and are known to those skilled in the art, so they will not be described in detail. A spherical first ball head 3 is fixedly connected to the bottom of the surveying head 2. The first ball head 3 is assembled into a first ball seat 4, so that the surveying head 2 can be adjusted at any angle relative to the first ball seat 4. The bottom of the first ball head 3 passes through the bottom of the first ball seat 4. A vertical mark point 7 is provided on the surface of the first ball head 3. The line connecting the vertical mark point 7 to the center of the ball coincides with the vertical axis of the surveying head 2. That is, when the line connecting the vertical mark point 7 and the center of the first ball head 3 is vertical, the surveying head 2 has completed the leveling. The first ball seat 4 is provided with at least two sets of drivers 5 that drive the first ball head 3 to rotate around the center from two directions respectively.

[0033] The leveling camera 6 has a lens that can always remain vertical, enabling it to take photos vertically from above and below.

[0034] The controller 9 acquires the image captured by the leveling camera 6. After acquiring the image captured by the leveling camera 6, the controller 9 first controls the walking mechanism to move so that the center point O of the bottom image of the first ball head 3 coincides with the station in the image below. Then, the controller 9 controls the driver 5 to drive the first ball head 3 to rotate, moving the vertical mark point 7 to the center point O of the bottom image of the first ball head 3. The controller 9 is connected to the control terminal 10 via a wireless network. The control terminal 10 can be installed on a mobile phone or other terminal.

[0035] After merging the upper and lower images, please refer to Figure 3The solid line represents the major and minor axes of the first ball head 3 image. The intersection of the major and minor axes is the center point O. Point A is the image of the station. At this time, the walking mechanism moves the ball head 3 so that the center point of the first ball head 3 image coincides with A, thus achieving alignment. Then, leveling begins. Since the vertical mark point 7 will be offset when the vertical axis of the surveying head 2 is tilted, the driver 5 drives the first ball head 3 to rotate. The position of the driver 5 is adjusted so that the vertical mark point 7 gradually moves to the center of the image. At this time, the line connecting the vertical mark point 7 to the center of the first ball head 3 is vertical, and the surveying head 2 is vertical.

[0036] The actuator 5 has two sets, and the line connecting the center of the two sets of actuators 5 to the center of the sphere is perpendicular to each other, such as... Figure 2 As shown by the dashed lines, the distance from the vertical marker 7 to the two dashed lines is the adjustment amount of the two drivers 5. When manually leveling, the dashed lines can also be used as a reference. When the adjustment reaches the position of the dashed lines, it means that the driver 5 in one direction has been adjusted.

[0037] Please see Figures 1-3 Three sets of telescopic rods 8 are provided between the first ball seat 4 and the support platform 1. The three sets of telescopic rods 8 are arranged in a circumferential array around the vertical axis of the center of the first ball head 3, and all three sets of telescopic rods 8 are inclined towards the vertical axis. The three sets of telescopic rods 8 form a telescopic tripod to support the first ball seat 4. The tripod can be an inverted triangle or an upright triangle, which does not affect the implementation of this embodiment. Each of the three sets of telescopic rods 8 is connected to the same circulating pressure source through two sets of control valves to realize telescopic movement. The pressure source is set on the walking mechanism and is connected to the control valve through pipelines. The specific setting of the pressure source and pipelines does not affect the implementation of this embodiment. Those skilled in the art can set it according to the needs of the actual scenario, which will not be described in detail. The control valve can be a servo valve to control the telescopic rods 8 to extend and retract quantitatively, or it can be a common solenoid valve that can realize timely cut-off. The pressure medium can be liquid or gas.

[0038] When moving the image of the vertical marker point 7 to the center point O of the bottom image of the first ball head 3, first control the telescopic rod 8 to extend and retract so that the image of the vertical marker point 7 moves to a position where the distance from the center point O is less than the set value d, and then control the driver 5 to drive the first ball head 3 to rotate so that the image of the vertical marker point 7 moves to coincide with the center point O of the bottom image of the first ball head 3.

[0039] In other words, during the adjustment process, coarse adjustment is first achieved through the telescopic rod 8, and then fine adjustment is achieved through the driver 5, so as to improve the leveling speed.

[0040] Please see Figure 3 and Figure 4The actuator 5 is a concave rotating roller. The side of the actuator 5 matches the side wall of the first ball head 3. The plane containing the axes of the two actuators 5 passes through the center of the first ball head 3. When on a horizontal ground, the plane is parallel. The first ball head 3 is connected to a drive box 11. The motor in the drive box 11 drives the actuator 5 to rotate at a low speed through a reduction gear set. The actuator 5 is close to the first ball head 3. The friction between the first ball head 3 and the actuator 5 can limit the rotation of the first ball head 3 and prevent the first ball head 3 from rotating again after the adjustment is completed.

[0041] Please see Figure 5 The middle part of the first ball head 3 is rough to ensure that there is a sufficiently large frictional force between the driver 5 and the first ball head 3. The other parts are smooth to ensure that the first ball head 3 and the driver 5 are tightly attached to each other and to ensure adjustment accuracy. The clamping a in the rough area can meet the fine adjustment requirements of the first ball head 3.

[0042] Please see Figure 6 and Figure 7 The leveling camera 6 includes a second ball seat 61, which is located below the first ball head 3 and is mounted on a support frame. The second ball seat 61 is movably connected to a second ball head 62, and a counterweight rod 63 is fixedly connected to the lower side of the second ball head 62. Cameras are provided at the bottom of the counterweight rod 63 and the top of the second ball head 62. The weight of the counterweight rod 63 makes the two cameras vertical. A windproof cover is provided on the outer periphery of the leveling camera 6 to prevent the counterweight rod 63 from swinging in the wind.

[0043] The side wall of the second ball seat 61 is provided with a brake block 64. An electromagnet 65 and a return spring 66 are provided on one side of the brake block 64. The brake block 64 vibrates under the action of the electromagnet 65 and the return spring 66. The vibration direction of the brake block 64 is aligned with the center of the second ball head 62. The brake block 64 is used to reduce the swing of the second ball head 62.

[0044] When shooting starts, the electromagnet 65 is powered on and off at a set frequency until the k images captured by the two cameras no longer change, where k is greater than 2. When the brake block 64 leaves the second ball head 62, the second ball head 62 automatically adjusts under the gravity of the counterweight rod 63. When the brake block 64 sticks to the second ball head 62, the kinetic energy of the rotation of the second ball head 62 is eliminated, shortening the adjustment time.

[0045] The working principle and workflow of this invention:

[0046] The walking mechanism moves to the vicinity of the station according to the coordinates or under manual control, controls the leveling camera 6 to be vertical and takes an image, and controls the walking mechanism to move according to the image taken by the leveling camera 6, so that the station coincides with the center point O. Then, leveling begins, and the vertical mark point 7 is adjusted according to the direction of deviation from the center point O. First, the vertical mark point 7 is moved to a range no greater than the set value d from the center point O by the extension and retraction of the telescopic rod 8. Then, the first ball head 3 is driven to rotate by the driver 5 so that the vertical mark point 7 is located on the center point O.

Claims

1. A surveying instrument for construction project cost estimation, comprising a support platform (1), characterized in that: The support platform (1) is connected to a first ball seat (4), the support platform (1) has a circular channel in the middle, and the support platform (1) is connected to a walking mechanism through a support frame; A surveying head (2) is provided with a dual-axis compensator inside. A spherical first ball head (3) is fixedly connected to the bottom of the surveying head (2). The first ball head (3) is assembled into a first ball seat (4). The bottom of the first ball head (3) passes through the bottom of the first ball seat (4). A vertical mark point (7) is provided on the surface of the first ball head (3). The line connecting the vertical mark point (7) to the center of the ball coincides with the vertical axis of the surveying head (2). At least two sets of drivers (5) are provided on the first ball seat (4) to drive the first ball head (3) to rotate around the center from two directions respectively. The leveling camera (6) has a camera that can always remain vertical and can take photos vertically above and below; The controller (9) acquires the image captured by the leveling camera (6), first controls the walking mechanism to move so that the center point O of the bottom image of the first ball head (3) coincides with the station in the image below, and then controls the driver (5) to drive the first ball head (3) to rotate, moving the vertical mark point (7) to the center point O of the bottom image of the first ball head (3). The controller (9) is connected to the control terminal (10) via a wireless network.

2. The surveying instrument for construction project cost estimation according to claim 1, characterized in that: The actuator (5) is provided in two sets, and the line connecting the center of the two sets of actuators (5) to the center of the sphere is perpendicular to each other.

3. A surveying instrument for construction project cost estimation according to claim 2, characterized in that: A tripod consisting of three sets of telescopic rods (8) is provided between the first ball seat (4) and the support platform (1).

4. A surveying instrument for construction project cost estimation according to claim 3, characterized in that: When the image of the vertical marker point (7) is moved to the center point O of the bottom image of the first ball head (3), the telescopic rod (8) is first controlled to extend and retract so that the image of the vertical marker point (7) is moved to a position where the distance from the center point O is less than the set value d. Then, the driver (5) is controlled to drive the first ball head (3) to rotate so that the image of the vertical marker point (7) is moved to coincide with the center point O of the bottom image of the first ball head (3).

5. A surveying instrument for construction project cost estimation according to claim 2 or 4, characterized in that: The driver (5) is a concave rotating rod. The side of the driver (5) matches the side wall of the first ball head (3). The plane containing the axes of the two drivers (5) passes through the center of the first ball head (3). The first ball head (3) is connected to a drive box (11). The drive box (11) is used to drive or lock the first ball head (3).

6. A surveying instrument for construction project cost estimation according to claim 1, characterized in that: The middle part of the first ball head (3) is rough, while the other parts are smooth.

7. A surveying instrument for construction project cost estimation according to claim 1, characterized in that: The leveling camera (6) includes a second ball seat (61), which is movably connected to a second ball head (62). A counterweight rod (63) is fixedly connected to the lower side of the second ball head (62). Cameras are provided at the bottom of the counterweight rod (63) and the top of the second ball head (62). The weight of the counterweight rod (63) makes the two cameras vertical.

8. A surveying instrument for construction project cost estimation according to claim 7, characterized in that: The second ball seat (61) has a brake block (64) on its side wall. An electromagnet (65) and a return spring (66) are provided on one side of the brake block (64). The brake block (64) vibrates under the action of the electromagnet (65) and the return spring (66).

9. A surveying instrument for construction project cost estimation according to claim 8, characterized in that: When shooting is started, the electromagnet (65) is powered on and off at a set frequency until the k images taken by the two cameras no longer change.

Images