Total Station Shielding System

Abstract

The present invention relates to the technical field of total stations, and in particular to a total station shielding system, which includes a base assembly and a shielding cover assembly; the shielding cover assembly is connected to the base assembly, and the shielding cover assembly can rotate relative to the base assembly; the base assembly is used to carry the total station, and the total station is located in the shielding space of the shielding cover assembly. By installing the total station on the base assembly and locating it in the shielding space of the shielding cover assembly, the shielding cover assembly can rotate relative to the base assembly. Since the body of the total station can rotate relative to the base of the total station, when the body of the total station rotates, the shielding cover assembly also rotates, thereby ensuring the use of the total station, and electromagnetically shielding the total station to prevent the total station from causing electromagnetic interference to other equipment.

Description

Technical Field

[0001] The invention relates to the technical field of total stations, and in particular to a total station shielding system. Background Art

[0002] A total station is a high-tech measuring instrument that integrates optics, mechanics and electronics. It is a surveying and mapping instrument system that integrates horizontal angle, vertical angle, distance (slant distance, horizontal distance) and height difference measurement functions. When it is used in special occasions, it may cause electromagnetic interference (EMI) to other equipment. For example, the EMI of a laser total station will directly affect the operation and observation accuracy of the 500-meter Aperture Spherical Radio Telescope (FAST). Summary of the invention

[0003] The purpose of the present invention is to provide a total station shielding system to solve the technical problem in the prior art that the total station may cause electromagnetic interference to other equipment to a certain extent.

[0004] The present invention provides a total station shielding system, which comprises a base assembly and a shielding cover assembly; the shielding cover assembly is connected to the base assembly, and the shielding cover assembly can rotate relative to the base assembly; the base assembly is used to carry the total station, and the total station is located in the shielding space of the shielding cover assembly.

[0005] In any of the above technical solutions, further, the base assembly and the shielding cover assembly are rotatably connected via a bearing.

[0006] In any of the above technical solutions, further, the base assembly includes a cutoff shaft and a carrier frame; the carrier frame is annular, and the cutoff shaft is located inside the carrier frame; the cutoff shaft is used to support the total station; the shielding cover assembly includes a rotating base and a shielding barrel; the shielding barrel is fixedly connected to the rotating base; the bearing is installed between the rotating base and the carrier frame.

[0007] In any of the above technical solutions, further, the outer ring of the bearing is fixedly connected to the rotating base, and the inner ring of the bearing is fixedly connected to the supporting frame.

[0008] In any of the above technical solutions, further, the base assembly also includes a chassis, the cut-off shaft and the supporting frame are respectively connected to the chassis, and the cut-off shaft is located inside the annular supporting frame.

[0009] In any of the above technical solutions, further, the total station shielding system also includes a driving assembly for driving the shielding cover assembly to rotate relative to the base assembly.

[0010] In any of the above technical solutions, further, the driving assembly includes a motor and an inner gear ring; the motor is installed on the base assembly, the inner gear ring is fixedly connected to the shielding cover assembly, and the motor is transmission-connected to the inner gear ring through gears.

[0011] In any of the above technical solutions, further, the shielding barrel includes a shielding cage and a shielding layer; the shielding layer is arranged on the shielding cage.

[0012] In any of the above technical solutions, further, the total station shielding system also includes a first tray, the first tray is fixedly connected to the top end of the cut-off shaft, and the first tray is used to be connected to the base of the total station.

[0013] In any of the above technical solutions, further, it also includes a synchronization component for enabling the shielding cover component to rotate together with the total station.

[0014] Compared with the prior art, the beneficial effects of the present invention are mainly:

[0015] The total station shielding system provided by the present invention includes a base assembly and a shielding cover assembly; the shielding cover assembly is connected to the base assembly, and the shielding cover assembly can rotate relative to the base assembly; the base assembly is used to carry the total station, and the total station is located in the shielding space of the shielding cover assembly. By installing the total station on the base assembly and locating it in the shielding space of the shielding cover assembly, the shielding cover assembly can rotate relative to the base assembly. Since the body of the total station can rotate relative to the base of the total station, when the body of the total station rotates, the shielding cover assembly also rotates, thereby ensuring the use of the total station, and electromagnetically shielding the total station to prevent the total station from causing electromagnetic interference to other equipment.

[0016] It should be understood that both the foregoing general description and the following specific embodiments are for the purpose of example and illustration and do not necessarily limit the present disclosure. The accompanying drawings, which are incorporated into and constitute a part of the specification, illustrate the subject matter of the present disclosure. At the same time, the specification and the drawings are used to explain the principles of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1A schematic structural diagram of a total station shielding system provided by an embodiment of the present invention;

[0019] Figure 2 for Figure 1 Sectional view along line AA;

[0020] Figure 3 for Figure 2 A partial enlarged schematic diagram of point E in the middle;

[0021] Figure 4 It is a structural schematic diagram of a base assembly in an embodiment of the present invention;

[0022] Figure 5 for Figure 4 Sectional view along line BB;

[0023] Figure 6 It is an axonometric view of the rotating base in an embodiment of the present invention;

[0024] Figure 7 This is a front view of the rotating base in an embodiment of the present invention;

[0025] Figure 8 for Figure 7 Sectional view along line CC;

[0026] Fig. 9 This is a schematic diagram of the structure of the upper barrel ring in an embodiment of the present invention;

[0027] Fig.10 for Fig. 9 Sectional view along line DD;

[0028] Fig.11 2 is a schematic structural diagram of the upper barrel ring from another perspective in an embodiment of the present invention.

[0029] icon:

[0030] 100-total station; 101-bearing; 102-cut-off shaft; 103-first wire hole; 104-second wire hole; 105-upper barrel; 106-lower barrel; 107-carrying plate; 108-annular boss; 109-limiting step; 110-chassis; 111-lower base; 112-lower barrel ring; 113-storage tank; 114-upper barrel ring; 115-first tray; 116-screw; 117-motor; 118-inner gear ring; 119-shielding cage; 120-warp ribs; 121-weft ribs; 122-open area; 123-lens waveguide; 124-disc slip ring; 125-stator; 126-rotor; 127-second tray; 128-carrying frame; 129-shoulder; 201-handle connecting shaft; 202-guide plate; 203-gyroscope; 204-reed switch. DETAILED DESCRIPTION

[0031] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0032] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0033] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Embodiment 1

[0037] See also Figures 1 to 11 As shown, this embodiment provides a total station shielding system, which includes a base assembly and a shielding cover assembly; the shielding cover assembly is connected to the base assembly, and the shielding cover assembly can rotate relative to the base assembly; the base assembly is used to carry the total station 100, and the total station is located in the shielding space of the shielding cover assembly.

[0038] Specifically, the shielding cover assembly is used to achieve electromagnetic shielding of the total station located inside the shielding cover assembly to prevent it from being interfered with by the outside world.

[0039] The total station shielding system provided by the embodiment of the present invention is to install the total station behind the base assembly and place it in the shielding space of the shielding cover assembly so that the shielding cover assembly can rotate relative to the base assembly. Since the body of the total station can rotate relative to the base of the total station, when the body of the total station rotates, the shielding cover assembly also rotates, thereby ensuring the use of the total station, and electromagnetically shielding the total station to prevent the total station from causing electromagnetic interference to other equipment. The total station can be a single-rotation laser total station.

[0040] In an optional solution of this embodiment, the base assembly and the shielding cover assembly are rotatably connected via a bearing 101. The stable rotation of the shielding cover assembly can be achieved via the bearing.

[0041] Specifically, the bearing may be an angular contact ball bearing. It should be noted that the bearing may also be other types of bearings to achieve the function of bearing the axial load and realizing the rotation of the shielding cover assembly.

[0042] In an optional solution of this embodiment, the base assembly includes a cut-off shaft 102 and a bearing frame; the cut-off shaft 102 is used to carry the total station; the shielding cover assembly includes a rotating base and a shielding barrel; the shielding barrel is fixedly connected to the rotating base; and the bearing is installed between the rotating base and the bearing frame. The bearing frame is annular. The cut-off shaft 102 can bear the weight of the entire total station, and the rotating base can rotate and can carry the shielding barrel.

[0043] Specifically, the cut-off shaft 102 has a first wire hole 103 extending along its axial direction and a second wire hole 104 extending along its radial direction, the first wire hole 103 is connected to the second wire hole 104, and the opening of the second wire hole 104 is close to the upper end of the cut-off shaft 102. The bearing frame is barrel-shaped, and the cut-off shaft 102 is coaxially arranged with the barrel-shaped bearing frame. The rotating base is basically barrel-shaped, and the rotating base includes an upper barrel part 105 and a lower barrel part 106 connected to the upper barrel part 105. The rotating base also includes a bearing plate 107; the bearing plate 107 has a through hole for the cut-off shaft 102 to pass through, and the bearing plate 107 is arranged at the connection between the upper barrel part 105 and the lower barrel part 106; the bearing plate 107, the upper barrel part 105 and the lower barrel part 106 are an integrated structure. The shielding barrel is fixedly connected to the upper barrel part 105 by a sleeve connection. The bearing plate 107 is sleeved on the cut-off shaft 102.

[0044] In an optional solution of this embodiment, the outer ring of the bearing is fixedly connected to the rotating base, and the inner ring of the bearing is fixedly connected to the supporting frame, which is convenient for fixation.

[0045] Specifically, the outer ring of the bearing is fixedly connected to the inner wall of the lower barrel 106, and the fixed connection between the two can be an interference fit, and the upper side of the outer ring of the bearing is limited by the annular boss 108 provided on the inner wall of the lower barrel 106. The outer surface of the bearing frame 128 has a limiting step 109, the inner ring of the bearing is sleeved on the bearing frame, and the lower surface of the inner ring of the bearing is in contact with the step surface of the limiting step 109, so that the limiting step 109 can axially limit the inner ring of the bearing.

[0046] In the optional solution of this embodiment, the base assembly also includes a chassis 110, and the cut-off shaft 102 and the carrier are respectively connected to the chassis 110, and the cut-off shaft 102 is located inside the annular carrier. The chassis 110 is convenient for carrying the cut-off shaft 102 and the carrier, and the cut-off shaft 102 and the carrier can be connected together.

[0047] Specifically, the carrier, the cut-off shaft 102 and the chassis 110 can all be made of stainless steel. The carrier can be fixed to the chassis 110 by welding or screw connection. The middle part of the chassis 110 has a perforation for the lower end of the cut-off shaft 102 to be inserted, and the cut-off shaft 102 is also provided with a limited step 109, so that after the lower end of the cut-off shaft 102 is inserted into the perforation of the chassis 110, the step surface of the limited step 109 abuts against the upper surface of the chassis 110, thereby realizing the limit of the cut-off shaft 102. The cut-off shaft 102 and the chassis 110 can be fixedly connected by welding or screw connection.

[0048] In an optional solution of this embodiment, the base assembly further includes a lower base 111, and the chassis 110 is fixed to the upper surface of the lower base 111 by screws. A storage tank 113 structure is also provided on the chassis 110, and the storage tank 113 structure is formed by a lower barrel ring 112 fixed to the upper surface of the chassis 110, and the lower barrel ring 112 is sealed with the upper surface of the chassis 110, and the sealing connection can be achieved by welding. The lower barrel ring 112 is sleeved on the outside of the cut-off shaft 102, and the inner wall of the lower barrel ring 112, the upper surface of the chassis 110 and the outer surface of the cut-off shaft 102 form a storage tank 113. The lower surface of the bearing plate 107 of the rotating base has an upper barrel ring 114, the outer diameter of the upper barrel ring 114 is smaller than the outer diameter of the lower barrel ring 112, and the upper barrel ring 114, the lower barrel ring 112 and the cut-off shaft 102 are coaxially arranged. The upper end of the upper barrel ring 114 is fixedly connected to the lower surface of the carrier plate 107 by screws, and the lower end of the lower barrel ring 112 extends into the storage tank 113, and a gap is left between the lower end of the lower barrel ring 112 and the upper surface of the chassis 110. Liquid metal is stored in the storage tank 113, and the liquid metal can be mercury, gallium, gallium-indium alloy, gallium-indium-tin alloy or gallium-indium-tin-zinc alloy. It should be noted that after the liquid metal is loaded, liquid sealant can be applied on the liquid metal to achieve sealing of the liquid metal.

[0049] In an optional solution of this embodiment, the total station shielding system further includes a first tray 115, which is fixedly connected to the top of the cut-off shaft 102 and is used to be connected to the base of the total station. The first tray 115 can better carry the total station.

[0050] Specifically, the first tray 115 is fixedly connected to the top of the cut-off shaft 102 by screws. A screw 116 is provided at the center of the first tray 115 for matching with a threaded hole at the top of the base of the total station.

[0051] In an optional solution of this embodiment, the total station shielding system also includes a driving assembly for driving the shielding cover assembly to rotate relative to the base assembly, so that the shielding cover assembly is easily driven by electricity.

[0052] In an optional solution of this embodiment, the driving assembly includes a motor 117 and an inner gear ring 118; the motor is mounted on the base assembly, the inner gear ring 118 is fixedly connected to the shielding cover assembly, and the motor is connected to the inner gear ring 118 through a gear. The matching of the inner gear ring 118 and the motor is conducive to improving the accuracy of the rotation angle of the shielding cover assembly.

[0053] Specifically, the inner gear ring 118 is installed inside the upper barrel 105, and the inner gear ring 118 is interference-connected with the upper barrel 105. The inner wall of the upper barrel 105 also has a limiting step 109, and the lower surface of the inner gear ring 118 abuts against the step surface of the limiting step 109, so that the inner gear ring 118 is axially limited. The upper end of the cut-off shaft 102 is provided with a shoulder, which is located above the limiting step 109 on the cut-off shaft 102; the cut-off shaft 102 is sleeved with a second tray 127, and the second tray 127 is fixedly connected to the shoulder 129 of the cut-off shaft 102 by screws. The shoulder supports and limits the second tray 127. The housing of the motor is fixedly connected to the second tray 127. A gear (not shown) is fixed on the output shaft of the motor, and the gear is meshed with the inner gear ring 118. The axis of the output shaft of the motor is parallel to the axis of the cut-off shaft 102; the motor can be a servo motor. The first wire hole 103 and the second wire hole 104 are used to pass the wires through to supply power to the motor. In addition, a power filter can be accommodated in the first wire hole 103. When in use, the shield barrel is rotated by controlling the operation of the motor.

[0054] In an optional solution of this embodiment, the shielding barrel includes a shielding cage 119 and a shielding layer (not shown); the shielding layer is arranged on the shielding cage 119. This makes it convenient to replace the shielding layer.

[0055] Specifically, the shielding cage 119 can be a birdcage structure, which is a mesh structure formed by interweaving warp ribs 120 and weft ribs 121, which is conducive to reducing the weight of the total station shielding system. The bottom of the birdcage structure is open, which is convenient for fixed connection with the upper barrel part 105 of the rotating base, and the birdcage structure can be bound to the upper barrel part 105 by tying wire. The shielding layer can be a cover structure, and the cover structure covers the outer surface of the birdcage structure. The cover structure has openings to avoid blocking the lens of the total station. The side of the birdcage structure also has an open area 122 to avoid blocking the lens of the total station.

[0056] In an optional solution of this embodiment, the shielding layer is an electromagnetic shielding cloth layer, which can better perform electromagnetic shielding. It should be noted that a rain cover can also be provided on the outside of the shielding barrel to protect against rain.

[0057] In an optional scheme of this embodiment, the total station shielding system also includes a lens waveguide tube 123, which is used to cooperate and connect with the lens of the total station (i.e., the objective lens of the total station); extension can be achieved through the lens waveguide tube 123 to avoid the influence of the shielding layer during use.

[0058] Specifically, one end of the lens waveguide tube 123 has a thread that matches the thread of the lens of the total station, so as to realize the fixed connection between the lens waveguide tube 123 and the lens. The lens waveguide tube 123 passes through the opening on the cover structure (i.e., the shielding layer). The cover structure and the lens waveguide tube 123 are connected by a tie wire, that is, the part of the cover structure at the opening is tied to the lens waveguide tube 123 by the tie wire. The tube surface of the lens waveguide tube 123 has a plurality of water leakage holes. When in use, when the lens waveguide tube 123 is connected to the lens of the total station, the water leakage holes face downward to prevent rainwater from entering the total station through the lens waveguide tube 123.

[0059] In an optional solution of this embodiment, a disc slip ring 124 is provided between the cut-off shaft 102 and the carrier plate 107, a stator 125 of the disc slip ring 124 is fixedly connected to the cut-off shaft 102, and a rotor 126 of the disc slip ring 124 is fixedly connected to the carrier plate 107. The disc slip ring 124 is located between the second tray 127 and the carrier plate 107.

[0060] The shielding part of the total station shielding system in this embodiment is mainly composed of a metal continuous closed body consisting of a shielding cage, a lower barrel, a bearing plate, a chassis, a lower barrel ring, liquid metal and a cut-off shaft, which can better protect the total station.

[0061] Embodiment 2

[0062] The total station shielding system in the second embodiment is an improvement on the first embodiment, and the technical contents disclosed in the first embodiment are not described repeatedly, and the contents disclosed in the first embodiment also belong to the contents disclosed in this embodiment.

[0063] In this embodiment, the total station shielding system further includes a synchronization component, which is used to enable the shielding cover component to rotate together with the total station. In this way, when the operator realizes the rotation of the total station body through the lens waveguide 123, the screen cover component can rotate together with the body of the total station.

[0064] See also Figure 1 and Figure 2 As shown, in the optional solution of this embodiment, the synchronization component includes a handle connecting shaft 201, a guide plate 202, a gyroscope 203 and a reed switch 204; the guide plate 202 is fixed to the top of the handle connecting shaft 201; the gyroscope 203 is installed on the guide plate 202 and is located directly above the top of the handle connecting shaft 201; the reed switch 204 is fixed inside the shielding cage 119, and a magnet is fixed at one end of the guide plate 202, and the magnet is located directly above the reed switch 204. The handle connecting shaft 201 is used to be fixedly connected to the handle of the total station through a thread. The number of reed switches 204 is two, and the two reed switches 204 are respectively located at the two ends of a diameter of the birdcage structure.

[0065] The total station shielding system also includes a controller, which may be an MCU controller or a PLC controller. The controller is mounted on the second tray 127. Since the disc slip ring 124 is provided, the reed switch 204 can be electrically connected to the controller. The gyroscope 203 is electrically connected to the controller.

[0066] It should be noted that the magnet may also be located below the reed switch 204. The gyroscope 203 may be a single gyroscope 203 or a dual gyroscope 203, and the gyroscope 203 may be connected to the controller by wireless transmission or wired transmission.

[0067] The working principle of the total station shielding system is as follows: when the system is powered on, it needs to be centered (i.e., the magnet on the guide plate 202 is first placed in the middle of the arcs corresponding to the two reed switches 204), and then the motor of the total station shielding system is rotated forward and reversed once each to reset the angle of the gyroscope 203. At this time, the angle of the gyroscope 203 is 0°, and the angle difference is calculated after 50 milliseconds, and the startup is completed. When the total station rotates, the gyroscope 203 rotates with it at the same angle. When the total station rotates more than ±5° (the gyroscope 203 also rotates ±5°), the motor of the total station shielding system starts to follow; when the primary tracking angle is relatively small (less than 10°), when it is detected that the magnet on the guide plate 202 passes the first reed switch 204, the motor of the total station shielding system slowly stops, and the angle of the gyroscope 203 is reset; when the tracking angle is relatively large (greater than 15°), when the motor runs at full speed, when it is detected that the magnet on the guide plate 202 passes the first reed switch 204, the motor slowly stops, and when the magnet on the guide plate 202 passes the second reed switch 204, the motor stops suddenly (the angle of the gyroscope 203 is reset); when the total station continues to rotate, the gyroscope 203 also rotates ±5° again, and the shielding system continues to follow the rotation.

[0068] It should be noted that the synchronization component can also be implemented in other ways to enable the shielding cover component to rotate with the total station; for example: an encoder is installed between the upper part of the total station and the inner top of the shielding cage 119 to detect the angle difference between the total station and the shielding cage 119, and the angle difference is set to zero, so that the rotating drum follows the movement of the total station, and cooperates with the Hall element position switch to complete the limit, zeroing and other protection functions, so that the shielding cover follows the total station to run reliably. The housing of the encoder is fixedly connected to the shielding cage 119 through a bracket, and the rotating shaft of the encoder is fixedly connected to the upper part of the total station through another bracket; the total station can rotate automatically when in use.

[0069] In summary, the total station shielding system provided by Embodiment 1 and Embodiment 2 of the present invention achieves lightweight shielding cover assembly, solves the problem of electromagnetic radiation interference, and enables the shielding cover assembly to rotate with the total station, which is beneficial to improving the operation and observation accuracy of FAST.

[0070] Finally, it should be noted that 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 with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A total station shielding system, characterized in that: It comprises a base assembly and a shielding cover assembly; the shielding cover assembly is connected to the base assembly, and the shielding cover assembly can rotate relative to the base assembly; the base assembly is used to carry a total station, and the total station is located in the shielding space of the shielding cover assembly; The body of the total station can rotate relative to the base of the total station, and when the body of the total station rotates, the shielding cover assembly also rotates; Also included is a synchronization assembly, used to enable the shielding cover assembly to rotate together with the total station; The synchronization component includes: Handle connecting shaft, guide plate, gyroscope and reed switch; The guide plate is fixed to the top end of the handlebar connecting shaft; The gyroscope is mounted on the guide plate and is located directly above the top end of the handlebar connecting shaft; The shielding cover assembly includes a shielding barrel, the shielding barrel includes a shielding cage, the reed switch is fixed inside the shielding cage, a magnet is fixed to one end of the guide plate, the magnet is located directly above the reed switch, and the handle connecting shaft is fixedly connected to the handle of the total station via threads.

2. The total station shielding system according to claim 1, characterized in that: The base assembly and the shielding cover assembly are rotatably connected via a bearing.

3. The total station shielding system according to claim 2, characterized in that: The base assembly includes a cutoff shaft and a bearing frame; the bearing frame is annular, and the cutoff shaft is located inside the bearing frame; the cutoff shaft is used to carry the total station; the shielding cover assembly includes a rotating base; the shielding barrel is fixedly connected to the rotating base; the bearing is installed between the rotating base and the bearing frame.

4. The total station shielding system according to claim 3, characterized in that: The outer ring of the bearing is fixedly connected to the rotating base, and the inner ring of the bearing is fixedly connected to the supporting frame.

5. The total station shielding system according to claim 3, characterized in that: The base assembly also includes a chassis, the cut-off shaft and the bearing frame are respectively connected to the chassis, and the cut-off shaft is located inside the annular bearing frame.

6. The total station shielding system according to any one of claims 1 to 5, characterized in that: It also includes a driving assembly for driving the shielding cover assembly to rotate relative to the base assembly.

7. The total station shielding system according to claim 6, characterized in that: The driving assembly includes a motor and an inner gear ring; the motor is mounted on the base assembly, the inner gear ring is fixedly connected to the shielding cover assembly, and the motor is transmission-connected to the inner gear ring via a gear.

8. The total station shielding system according to any one of claims 3 to 5, characterized in that: The shielding barrel comprises a shielding layer; the shielding layer is arranged on the shielding cage.

9. The total station shielding system according to any one of claims 3 to 5, characterized in that: It also includes a first tray, which is fixedly connected to the top end of the cut-off shaft and is used to be connected to the base of the total station.

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