RTK rover assist device

Abstract

The application discloses an RTK flow station auxiliary device and relates to the technical field of engineering measurement. Technical points are as follows: the auxiliary device comprises a mounting clamp, two inclined supporting legs are movably arranged on one side of the mounting clamp, and the two inclined supporting legs are telescopic structures; the inclined supporting leg comprises a fixed shell, and a telescopic supporting leg is arranged in the fixed shell; a tension control unit is arranged at one end of the fixed shell close to the mounting clamp, a clamping unit connected with the tension control unit is arranged at the other end of the fixed shell, and the specific state of the clamping unit can be controlled through the tension control unit. The auxiliary device can save the trouble of a measurer holding an RTK flow station centering rod, so that the influence of hand fatigue on the measurement data precision can be effectively avoided.

Description

Technical Field

[0001] This application relates to the field of engineering surveying technology, and in particular to an RTK rover auxiliary device. Background Technology

[0002] RTK measurement utilizes carrier phase differential technology for real-time positioning. It is precisely through these two measurement methods—differential correction and carrier phase ranging—that the accuracy of dynamic positioning can reach the centimeter level. Differential GPS technology uses the spatial correlation between the base station and the rover to perform differential correction, thereby reducing positioning errors.

[0003] In practical applications, a GPS receiver is typically set up as a reference station at a known point with high accuracy and reliability. The reference station should be surrounded by a wide field of view and good observation conditions. Then, a surveyor carries a rover to the point to be measured, sets up the rover there, and simultaneously observes satellites using both the reference station and the rover. After capturing satellite signals, the reference station's receiver begins calculating its own position. The calculated result is then compared with the known coordinates to determine the error value. Based on the coordinate error, the positioning error for each satellite is calculated. Since the reference station's GPS receiver cannot know the number of satellites received by the rover's receiver, the reference station receiver locks onto all satellites in its field of view, calculates the positioning error for each satellite, and then encodes it into a standard code, sending it to the rover via the communication link. Upon receiving the code, the rover corrects for errors based on its own satellite observations to obtain an accurate positioning result.

[0004] The general structure of a GPS rover commonly used in the surveying field is as follows: Figure 1 As shown, a typical system consists of a retractable centering rod (which includes a level for calibrating the verticality of the equipment), the main body of the rover, and an operating handheld device. After the rover is placed at the point to be measured, it is difficult for the rover to maintain a properly adjusted vertical position at the point to be measured by relying solely on the centering rod. Therefore, when using an RTK rover for measurement, it is difficult to quickly align the end of the RTK rover rod with the crosshairs of the control point mark. Generally, the surveyor needs to adjust the state of the centering rod according to the level, hold the centering rod firmly with one hand and stabilize it, and use the other hand to operate the handheld device on the centering rod to transmit or record data. If the handheld device is a Bluetooth handheld device, the surveyor can also remove the handheld device and perform the corresponding operations with one hand.

[0005] To ensure the accuracy of measurement points, smoothing measurements are often required more than 10 times for a single control point. (Smoothing measurements involve continuously collecting data from multiple eras and processing it using average or weighted average methods to reduce errors and improve positioning accuracy.) During this process, the rover's centering rod needs to remain as stable as possible for several minutes. However, the surveyor holds the centering rod by hand to keep it upright, which inevitably leads to hand tremors and deviations over time, significantly affecting the accuracy of the data measurement. Even if the surveyor corrects the verticality of the centering rod after each measurement, or takes a short break after several measurements to alleviate hand fatigue before readjusting the verticality and continuing the measurement, both methods will affect the measurement efficiency. Therefore, there is an urgent need for an RTK rover station auxiliary device to help surveyors solve these problems. Utility Model Content

[0006] This application provides an RTK rover auxiliary device that can replace the surveyor in maintaining the rover in a vertical state after the rover has been adjusted for verticality, thereby improving the accuracy of measurement data when the surveyor performs measurement operations.

[0007] The above-mentioned objective of this application is achieved through the following technical solution: An RTK rover auxiliary device includes a mounting clip for connecting to an RTK centering rod, wherein two mutually symmetrical inclined legs are movably mounted on one side of the mounting clip, and both inclined legs are telescopic structures. The inclined support leg includes a fixed housing, and a telescopic support leg is inserted inside the fixed housing. The telescopic support leg can slide freely along its length direction inside the fixed housing. A tension control unit is provided at one end of the fixed housing near the mounting card, and a snap-fit ​​unit connected to the tension control unit is provided at the other end of the fixed housing. The tension control unit can control the specific state of the snap-fit ​​unit.

[0008] Furthermore, the snap-fit ​​unit includes an adjustment through hole formed on the fixed housing, and a side bracket is provided on each side of the adjustment through hole in the width direction, and the side brackets are fixedly connected to the fixed housing; An abutment block is provided between the two side supports. The abutment block is movably connected to the two side supports via a rotating shaft. An elastic element is connected to the abutment block or the rotating shaft. The elastic element allows the abutment block to maintain an abutment relationship with the telescopic support leg inside the fixed housing.

[0009] Furthermore, the elastic element is a torsion spring, which is mounted on the rotating shaft. Under normal conditions, the torsion spring can drive the abutment block to lock the telescopic leg in the position within the fixed housing.

[0010] Furthermore, a rubber gasket is installed on the side surface of the abutment block facing the adjustment through hole.

[0011] Furthermore, the tension control unit includes a fixed side plate, which is installed on one side wall of the fixed housing near the mounting clip. A wire through hole is provided at the center of the fixed side plate, and a control handle is provided on the upper side of the wire through hole. An outer protective tube is fixedly installed on the lower side of the wire through hole. A control wire is provided in the wire through hole, one end of which extends upward and connects to the control handle. The other end of the control wire passes downward through the outer protective tube and extends to the abutment block, where it is tied and fixed together with the mounting hole on the abutment block.

[0012] Furthermore, the control handle is circular, and the inner diameter of the control handle is not less than the diameter of a single finger of an average person.

[0013] Furthermore, the mounting clip includes a U-shaped slot, on one side wall of which a screw with a knob is inserted. One end of the screw extending into the U-shaped slot is fixedly connected to a fixed compression end. An expansion plate is fixedly connected to the side of the U-shaped slot opposite to the screw. Both ends of the expansion plate in the length direction are bent toward the screw. The upper ends of the two inclined legs are respectively hinged to the outside of the two bent portions of the expansion plate.

[0014] In summary, this application includes at least one of the following beneficial technical effects: The mounting clip of this application allows the entire auxiliary device to be connected to a traditional RTK centering rod. When used outdoors, after the surveyor adjusts the verticality of the centering rod at the point to be measured, they can move the two inclined legs on the mounting clip. The two inclined legs can then be used to maintain the RTK rover in a stable vertical position, replacing manual operation. This way, even if the surveyor performs operations on the handheld device for several minutes to obtain accurate data, there is no need to worry about the rover shaking or tilting due to hand fatigue. This not only reduces the surveyor's fatigue but also improves the convenience of the surveyor's operation of the equipment and the efficiency of the measurement.

[0015] Furthermore, the inclined support leg of this application also has a telescopic function. During the process of adjusting the verticality of the centering rod, the surveyor can use the upper tension control unit to control the locking unit to release its restriction on the telescopic support leg. This allows the length of the inclined support leg to change in real time during adjustment to adapt to the real-time position of the centering rod. After the centering rod is adjusted, the tension control unit is used to restore the locking unit's state and relock the telescopic support leg, thus allowing the inclined support leg to quickly complete the support operation for the centering rod. Because the tension control unit of this application is located at the upper end of the inclined support leg, the surveyor can control the state of the locking unit without bending over, significantly improving the convenience of actual operation compared to existing technologies. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of a commonly used RTK rover in existing technology; Figure 2 This is an overall structural diagram of this application; Figure 3 yes Figure 2 Enlarged structural diagram at point A; Figure 4 This is a schematic diagram of the internal structure of the fixed outer shell in one of the inclined legs of this application; Figure 5 This is a schematic diagram showing the state after the control handle of this application is pulled upward to drive the locking unit away from the adjustment through hole; Figure 6 This is a schematic diagram showing the state when the auxiliary device of this application is used together with an existing RTK rover.

[0018] Reference numerals: 1. Centering rod; 2. Mounting clip; 21. U-shaped slot; 22. Screw; 23. Extrusion end; 24. Outer expansion plate; 3. Slanted support leg; 31. Fixed outer shell; 32. Telescopic support leg; 4. Tightening control unit; 41. Fixed side plate; 42. Through hole for wiring; 43. Control handle; 44. Outer protective tube; 45. Control wire; 5. Snap-fit ​​unit; 51. Adjustment through hole; 52. Side bracket; 53. Abutment block; 54. Rotating shaft; 6. Torsion spring. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this application.

[0020] like Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, this application discloses an RTK rover auxiliary device, which includes a mounting clip 2 for connecting to the RTK centering rod 1. Two mutually symmetrical inclined legs 3 are movably mounted on one side of the mounting clip 2, and both inclined legs 3 are telescopic structures. The inclined support leg 3 includes a fixed housing 31, and a telescopic support leg 32 is inserted inside the fixed housing 31. The telescopic support leg 32 can slide freely along its length direction inside the fixed housing 31. A tension control unit 4 is provided at one end of the fixed housing 31 near the mounting card 2, and a snap-fit ​​unit 5 connected to the tension control unit 4 is provided at the other end of the fixed housing 31. The specific state of the snap-fit ​​unit 5 can be controlled by the tension control unit 4.

[0021] In the above embodiments, the mounting clip 2 of this application is a snap-fit ​​component similar to a clamp. The entire auxiliary device can be assembled with the traditional RTK centering rod 1 through the mounting clip 2, thereby forming a whole structure. The mounting position of the mounting clip 2 on the RTK centering rod 1 is close to the lower side of the level instrument on it. In this way, the height of the tension control unit 4 at the upper end of the inclined support leg 3 in the vertical direction will also be close to the height of the level instrument, which makes it convenient for the worker to adjust the state of the snap-fit ​​unit 5 using the tension control unit 4 while observing the level instrument.

[0022] When used outdoors, after the surveyor adjusts the verticality of the centering rod 1 at the point to be measured, they can adjust the angle of the two inclined legs 3 on the mounting clip 2. The two inclined legs 3 replace the human hand to keep the RTK rover in a stable vertical state. In this way, even if the surveyor performs operations on the handheld device for several minutes to obtain accurate data, there is no need to worry about the rover shaking or tilting due to hand fatigue. This not only reduces the surveyor's fatigue, but also improves the convenience of the surveyor's operation of the equipment and the efficiency of the measurement.

[0023] In addition, the inclined support leg 3 of this application also has a telescopic function. During the process of adjusting the verticality of the centering rod 1, the surveyor can use the upper tension control unit 4 to control the locking unit 5 to release its restriction on the telescopic support leg 32. In this way, the length of the inclined support leg 3 can change in real time during the adjustment process to adapt to the real-time position of the centering rod 1. After the centering rod 1 is adjusted, the tension control unit 4 is used to restore the state of the locking unit 5 and relock the telescopic support leg 32. In this way, the inclined support leg 3 can quickly complete the support operation of the centering rod 1.

[0024] Because the tension control unit 4 of this application is located at the upper end of the inclined support leg 3, compared with the traditional telescopic parts where the locking button or switch is located at a lower position, the surveyor can control the state of the locking unit 5 without bending over when using the auxiliary device of this application, which can significantly improve the convenience of actual operation compared with the prior art.

[0025] Furthermore, such as Figure 2 and Figure 3 As shown, the snap-fit ​​unit 5 includes an adjustment through hole 51 opened on the fixed housing 31, and a side bracket 52 is provided on both sides of the adjustment through hole 51 in the width direction. The side brackets 52 are fixedly connected to the fixed housing 31. An abutment block 53 is provided between the two side supports 52. The abutment block 53 is movably connected to the two side supports 52 through a rotating shaft 54. An elastic element is connected to the abutment block 53 or the rotating shaft 54. The elastic element can keep the abutment block 53 in contact with the telescopic support leg 32 inside the fixed housing 31.

[0026] In the above embodiments, the adjustment through hole 51 on the fixed housing 31 is mainly to facilitate the smooth insertion of the abutment block 53 from the fixed housing 31 into contact with the telescopic support leg 32 inside. The abutment block 53 is movably connected to the two side brackets 52 on the outside of the adjustment through hole 51 through the pivot 54, so that the abutment block 53 has the ability to rotate around the axis of the pivot 54 when in use. An elastic element is provided on the abutment block 53 or the pivot 54. Regardless of the arrangement of the elastic element, under normal conditions, the elastic force of the elastic element must ensure that the end of the abutment block 53 away from the pivot 54 is firmly stuck on the outside of the telescopic support leg 32 in the adjustment through hole 51. It is equivalent to the elastic element using its elastic force to make the abutment block 53 tend to swing downward under normal conditions. When the abutment block 53 contacts the telescopic support leg 32, this tendency will cause the abutment block 53 to generate a force on the surface of the telescopic support leg 32 that presses it tightly against the fixed housing 31. This force can keep the telescopic support leg 32 in a relatively static state (i.e., locked state) with the fixed housing 31 under normal conditions. Similarly, when it is necessary to adjust the position of the telescopic outrigger 32 within the fixed housing 31, simply use the tension control unit 4 to release the abutment block 53 from restricting the telescopic outrigger 32, which is convenient and efficient to operate.

[0027] Furthermore, the elastic element is a torsion spring 6, which is mounted on the rotating shaft 54. Under normal conditions, the torsion spring 6 can drive the abutment block 53 to lock the telescopic leg 32 in the position within the fixed housing 31.

[0028] In the above embodiments, the torsion spring 6 is a commonly used elastic component in the prior art. Its full name is a torsion spring, which is a mechanical part that stores and releases angular energy or generates torque by undergoing elastic deformation around its own axis. Torsion springs 6 are used in various everyday devices such as car door hinges, clutches, laptop clips, and computer optical drive bay doors. The specific usage of the torsion spring 6 is common knowledge to those skilled in the art, and therefore will not be elaborated upon here. Compared to using a spring between the abutment block 53 and the fixed housing 31 to lock the telescopic leg 32, the use of the torsion spring 6 makes the overall structure of the latching unit 5 more compact, enabling it to play an important role in limited space, with high space utilization. Furthermore, it maintains its performance under multiple cyclic loads, has a long service life, and is not easily broken or permanently deformed.

[0029] Furthermore, a rubber gasket is installed on the surface of the abutment block 53 facing the adjustment through hole 51.

[0030] In the above embodiments, the rubber pad on the abutment block 53 can reduce the wear on the surface of the telescopic support leg 32 when it is pressed against the telescopic support leg 32.

[0031] Furthermore, such as Figure 2 , Figure 4 and Figure 5 As shown, the tension control unit 4 includes a fixed side plate 41, which is installed on one side wall of the fixed housing 31 near the mounting clip 2. A wire through hole 42 is provided at the center of the fixed side plate 41. A control handle 43 is provided on the upper side of the wire through hole 42, and an outer protective tube 44 is fixed on the lower side of the wire through hole 42. A control wire 45 is provided in the wire through hole 42. One end of the control wire 45 extends upward and connects to the control handle 43. The other end of the control wire 45 passes downward through the outer protective tube 44 and extends to the abutment block 53, where it is tied and fixed together with the mounting hole on the abutment block 53.

[0032] In the above embodiments, the control handle 43 and the abutment block 53 on the fixed side plate 41 are connected by a control wire 45. When the abutment block 53 is normally locked to the telescopic outrigger 32, the length of the control wire 45 is exactly taut between the fixed side plate 41 and the abutment block 53. This allows the control wire 45 to quickly swing the abutment block 53 upwards when the surveyor pulls the control handle 43, shortening the measurement time. The size of the control handle 43 is larger than the diameter of the through hole 42 at the center of the fixed side plate 41, thus restricting the control handle 43 to the upper side of the fixed side plate 41 during use, allowing the surveyor to easily access the control handle 43.

[0033] Furthermore, such as Figure 3 As shown, the control handle 43 is circular, and the inner diameter of the control handle 43 is not less than the diameter of a single finger of an ordinary person.

[0034] In the above embodiments, the control handle 43 is configured as a ring shape, and the upper side of the through hole on the fixed side plate 41 is configured as a flared opening that matches its external contour. When in use, the control handle 43 can be smoothly locked into the through hole on the fixed side plate 41. The inner diameter of the ring-shaped control handle 43 ensures that an ordinary person can easily insert at least one finger when using it. This allows the surveyor to hold the upper ends of the two inclined legs 3 with both hands and swing the centering rod 1 through the two inclined legs 3 when straightening the centering rod 1. During this process, the surveyor only needs to insert their finger into the corresponding side of the control handle 43 and lift their finger upward to easily release the freedom of the telescopic leg 32 within the fixed housing 31. During the swinging of the centering rod 1, when the lower end of the telescopic leg 32 is far from the ground... Under the influence of gravity, it will automatically extend until it contacts the ground. When the centering rod 1 swings to the side of the inclined leg 3, the distance between the inclined leg 3 and the ground will shorten. During this process, the ground will automatically push the telescopic leg 32 into the fixed housing 31. After the centering rod 1 is adjusted in conjunction with the level, the surveyor can withdraw his finger, and the abutment block 53 can quickly reset under the action of the torsion spring 6, so that the inclined leg 3 is kept in the adjusted state. Then the surveyor can release his hand, and the two inclined legs 3 can stably support the adjusted RTK rover.

[0035] Furthermore, such as Figure 2 and Figure 6 As shown, the mounting clip 2 includes a U-shaped slot 21. A screw 22 with a knob is inserted into one side wall of the U-shaped slot 21. One end of the screw 22 that extends into the U-shaped slot 21 is fixedly connected to a fixed pressing end 23. An outer expansion plate 24 is fixedly connected to the side of the U-shaped slot 21 opposite to the screw 22. Both ends of the outer expansion plate 24 in the length direction are bent toward the screw 22. The upper ends of the two inclined support legs 3 are respectively hinged to the outside of the two bent parts of the outer expansion plate 24.

[0036] In the above embodiments, the notch in the U-shaped slot 21 facilitates its slippage onto one side of the RTK centering rod 1. The operator can adjust the position of the pressing end 23 within the U-shaped slot 21 by rotating the screw 22 with a knob on the U-shaped slot 21, thereby enabling the installation and removal of the auxiliary device on the RTK centering rod 1. The fixed housings 31 of the two inclined legs 3 are respectively hinged to the two bends of the outward expansion plate 24 on the U-shaped slot 21, improving the stability of the support when the inclined legs 3 are used to support the centering rod 1. The hinge shaft between the inclined legs 3 and the outward expansion plate 24 can be a damping shaft (a damping shaft is a mechanical component in the prior art that can provide controllable rotational resistance and achieve a smooth, slow, and controlled rotation effect), which helps to hold the inclined legs 3 and the centering rod 1 in a specific state before adjusting the length of the inclined legs 3.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An RTK rover auxiliary device, comprising a mounting clip (2) for connecting to an RTK centering rod (1), characterized in that: Two mutually symmetrical inclined legs (3) are movably installed on one side of the mounting clip (2), and both inclined legs (3) are telescopic structures. The inclined support leg (3) includes a fixed outer shell (31), and a telescopic support leg (32) is inserted inside the fixed outer shell (31). The telescopic support leg (32) can slide freely along its length direction inside the fixed outer shell (31). A tension control unit (4) is provided at one end of the fixed housing (31) near the mounting card (2), and a snap-fit ​​unit (5) connected to the tension control unit (4) is provided at the other end of the fixed housing (31). The specific state of the snap-fit ​​unit (5) can be controlled by the tension control unit (4).

2. The RTK rover auxiliary device according to claim 1, characterized in that: The snap-fit ​​unit (5) includes an adjustment through hole (51) opened on the fixed housing (31), and a side bracket (52) is provided on both sides of the adjustment through hole (51) in the width direction. The side brackets (52) are fixedly connected to the fixed housing (31). An abutment block (53) is provided between the two side supports (52). The abutment block (53) is movably connected to the two side supports (52) via a pivot (54). An elastic element is connected to the abutment block (53) or the pivot (54). The elastic element allows the abutment block (53) to maintain an abutment relationship with the telescopic support leg (32) inside the fixed housing (31).

3. The RTK rover auxiliary device according to claim 2, characterized in that: The elastic element is a torsion spring (6), which is mounted on the rotating shaft (54). Under normal conditions, the torsion spring (6) can drive the abutment block (53) to lock the telescopic leg (32) in the position inside the fixed housing (31).

4. The RTK rover auxiliary device according to claim 2, characterized in that: A rubber gasket is installed on the side surface of the abutment block (53) facing the adjustment through hole (51).

5. The RTK rover auxiliary device according to claim 3 or 4, characterized in that: The tension control unit (4) includes a fixed side plate (41), which is installed on one side wall of the fixed housing (31) near the mounting clip (2). A wire through hole (42) is provided at the center of the fixed side plate (41). A control handle (43) is provided on the upper side of the wire through hole (42), and an outer protective tube (44) is fixed on the lower side of the wire through hole (42). A control wire (45) is provided in the wire through hole (42). One end of the control wire (45) extends upward and connects to the control handle (43). The other end of the control wire (45) passes downward through the outer protective tube (44) and extends to the abutment block (53), and is tied and fixed together with the mounting hole on the abutment block (53).

6. The RTK rover auxiliary device according to claim 5, characterized in that: The control handle (43) is circular, and the inner diameter of the control handle (43) is not less than the diameter of a single finger of an ordinary person.

7. The RTK rover auxiliary device according to any one of claims 1 to 4, characterized in that: The mounting clip (2) includes a U-shaped slot (21), and a screw (22) with a knob is inserted into one side wall of the U-shaped slot (21). One end of the screw (22) extending into the U-shaped slot (21) is fixedly connected to a fixed extrusion end (23). An expansion plate (24) is fixedly connected to the side of the U-shaped slot (21) opposite to the screw (22). Both ends of the expansion plate (24) in the length direction are bent toward the screw (22). The upper ends of the two inclined legs (3) are respectively hinged to the outside of the two bent parts of the expansion plate (24).

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