Non-contact RTK measuring rod

Abstract

The utility model discloses a non-contact type RTK measuring rod, belongs to the technical field of surveying and mapping instruments, and can solve the problem that the existing RTK measuring rod is difficult to accurately or safely measure channel edges, wall corners or other areas which are not suitable for being in contact with a tip of a center rod or have potential safety hazards during field measurement. The measuring rod comprises a distance measuring rod which is internally provided with a laser distance measuring instrument; the laser range finder is used for measuring the distance between the to-be-measured point and the laser emission point; the RTK receiver is connected to the top end of the distance measuring rod; the RTK receiver and the laser range finder are both in wireless connection with the RTK handbook. The RTK handbook is used for controlling the RTK receiver to work and receiving measurement data of the RTK receiver and the laser range finder; the centering rod is detachably connected to the bottom end of the distance measuring rod; and the bottom end of the centering rod stands on a control point or the ground. The RTK measuring device is used for RTK measurement.

Description

Technical Field

[0001] This utility model relates to a non-contact RTK measuring rod, belonging to the field of surveying instrument technology. Background Technology

[0002] RTK (Real-Time Kinematic) has become an indispensable surveying instrument in the surveying profession, with the measuring rod serving as an essential accessory. When using RTK for surveying, the RTK needs to be mounted on a measuring rod (i.e., a centering rod, or single rod) for field measurements. For single-rod RTK measurements, the pointed end of the rod is typically aligned and placed on the point to be measured. Newly manufactured RTK equipment in recent years has inertial navigation tilt compensation measurement capabilities, allowing most devices to place the centering rod's pointed end on the measurement point at tilt angles within 60 degrees. However, for wider canal banks, distant corners, or other areas unsuitable for centering rod tip contact or where field measurements pose safety hazards, existing RTK measuring rods struggle to provide accurate and rapid measurements. Summary of the Invention

[0003] This invention provides a non-contact RTK measuring rod that solves the problem that existing RTK measuring rods are difficult to use for accurate or safe measurements in areas such as wide canal edges, distant corners, or other areas where it is not suitable to contact the rod tip or where there are safety hazards during field measurements.

[0004] This utility model provides a non-contact RTK measuring rod, the measuring rod comprising:

[0005] A distance measuring rod, which contains a laser rangefinder; the laser rangefinder is used to measure the distance between the point to be measured and the laser emission point;

[0006] An RTK receiver is connected to the top of the ranging rod; both the RTK receiver and the laser rangefinder are wirelessly connected to the RTK handheld device; the RTK handheld device is used to control the operation of the RTK receiver and to receive measurement data from the RTK receiver and the laser rangefinder.

[0007] A centering rod is detachably connected to the bottom end of the ranging rod; the bottom end of the centering rod stands on the control point or the ground.

[0008] Optionally, the bottom end of the ranging rod has a nut hole, through which the infrared laser emitted by the laser rangefinder can pass and illuminate the point to be measured.

[0009] Optionally, the top end of the centering rod is connected to the bottom end of the distance measuring rod by bolts.

[0010] Optionally, the measuring rod further includes:

[0011] A power supply module is used to supply power to the laser rangefinder.

[0012] Optionally, the ranging rod has a cavity, and both the laser rangefinder and the power supply module are placed inside the cavity.

[0013] Optionally, the rangefinder rod has a detachable threaded interface on its shaft; the cavity is opened or closed through the detachable threaded interface.

[0014] Optionally, the power supply module is a multi-cell battery.

[0015] Optionally, the battery is a rechargeable lithium battery.

[0016] Optionally, the measuring rod further includes:

[0017] A circular level is fixed to the rod of the measuring rod.

[0018] Optionally, the centering rod is a telescopic rod.

[0019] The beneficial effects that this utility model can produce include:

[0020] The non-contact RTK measuring pole provided by this utility model has a built-in laser rangefinder. After point correction and inertial navigation tilt measurement initialization are completed using the centering rod, the centering rod can be removed. Non-contact distance measurement and measurement of the point to be measured can be completed solely using the laser rangefinder and RTK equipment. This allows the RTK measuring pole to be applied to areas such as canal sides, wall corners, or other areas where it is not suitable for contact with the tip of the centering rod or where there are safety hazards during field measurement. This expands the application range of the RTK measuring pole and improves the efficiency and safety of RTK field measurement. Attached Figure Description

[0021] Figure 1 A schematic diagram of the distance measuring rod structure provided in an embodiment of this utility model;

[0022] Figure 2 A schematic diagram of the circular level structure provided in this embodiment of the utility model;

[0023] Figure 3 A schematic diagram of the detachable threaded interface structure provided in this embodiment of the utility model;

[0024] Figure 4 This is a schematic diagram of the centering rod structure provided in an embodiment of the present utility model;

[0025] Figure 5 A schematic diagram illustrating the control point calibration of the RTK measuring rod provided in this embodiment of the utility model;

[0026] Figure 6A schematic diagram illustrating the initialization of inertial navigation tilt measurement for the RTK measuring rod provided in this embodiment of the utility model;

[0027] Figure 7 A schematic diagram of the RTK measuring rod provided in this embodiment of the present invention for measuring the point to be measured. Figure 1 ;

[0028] Figure 8 A schematic diagram of the RTK measuring rod provided in this embodiment of the present invention for measuring the point to be measured. Figure 2 .

[0029] Figure label:

[0030] 1. Rangefinder pole; 2. RTK receiver; 3. Centering rod; 4. Circular level; 5. Fixing screw; 6. Detachable threaded interface; 7. Laser rangefinder; 8. RTK handheld device. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the embodiments, but the present invention is not limited to these embodiments.

[0032] This utility model embodiment provides a non-contact RTK measuring rod, such as Figures 1 to 8 As shown, the measuring rod includes:

[0033] The measuring rod 1 contains a laser rangefinder 7; the laser rangefinder 7 is used to measure the distance between the point to be measured and the laser emission point.

[0034] In practical applications, the bottom end of the measuring rod 1 has a nut hole, and the infrared laser emitted by the laser rangefinder 7 can pass through the nut hole and irradiate the point to be measured.

[0035] RTK receiver 2 is connected to the top of rangefinder 1; both RTK receiver 2 and laser rangefinder 7 are wirelessly connected to RTK handheld device 8; RTK handheld device 8 is used to control the operation of RTK receiver 2 and receive measurement data from RTK receiver 2 and laser rangefinder 7.

[0036] The centering rod 3 is detachably connected to the bottom end of the distance measuring rod 1; the bottom end of the centering rod 3 stands on the control point or the ground.

[0037] For details, please refer to Figure 4 As shown, the top of the centering rod 3 is connected to the bottom of the ranging rod 1. The bottom of the centering rod 3 is placed on the control point for point correction, or on the ground for inertial navigation tilt measurement initialization.

[0038] In practical applications, the top end of the centering rod 3 is connected to the bottom end of the distance measuring rod 1 by bolts.

[0039] refer to Figure 1As shown, the rangefinder 1 can be a cylinder made of carbon fiber with a screw head at the top, which is connected to the nut hole at the bottom of the RTK receiver 2. A laser rangefinder 7 is embedded inside it, which can emit an infrared laser beam from the center of the nut hole at the bottom of the rangefinder 1. The laser rangefinder 7 can measure the return distance of the illumination point and display it in the antenna height bar in the RTK handheld device 8.

[0040] Furthermore, the measuring rod also includes:

[0041] The power supply module is used to supply power to the laser rangefinder 7.

[0042] Specifically, the ranging rod 1 has a cavity inside, and the laser rangefinder 7 and the power supply module are both placed inside the cavity.

[0043] In this embodiment of the utility model, reference is made to Figure 1 and Figure 3 As shown, the rangefinder rod 1 has a detachable threaded interface 6 on its shaft; the cavity is opened or closed through the detachable threaded interface 6.

[0044] In practical applications, the power supply module can be composed of multiple batteries. Furthermore, the batteries are rechargeable lithium batteries.

[0045] The rangefinder pole 1 features infrared laser beam illumination and laser rangefinding capabilities. It has a built-in Bluetooth module for wireless connectivity with the RTK handheld device 8 and includes a high-capacity 26650 rechargeable and replaceable lithium battery. Multiple lithium batteries can be easily inserted by unscrewing the detachable threaded interface 6 on the rangefinder pole 1.

[0046] The centering rod 3 is a telescopic rod, which can reach a maximum length of 1.5m and is only about 0.2m when fully retracted, making it easy to carry. It is mainly used for RTK inertial navigation initialization and control point calibration.

[0047] Furthermore, the measuring rod also includes:

[0048] The circular level 4 is fixed to the rod of the distance measuring rod 1.

[0049] refer to Figure 2 As shown, the circular level 4 can be fixed to the rod of the measuring rod 1 by fixing screws 5. The circular level 4 can be used to determine whether the measuring rod is in a vertical state during point correction and inertial navigation tilt measurement initialization.

[0050] The non-contact RTK measuring rod provided by this utility model, in actual use, first connects the centering rod 3 to the ranging rod 1, and then connects it to the RTK receiver 2. After the RTK receiver 2 obtains the fixed solution, point calibration is completed at the control point (see reference). Figure 5 Then, enable the inertial navigation tilt measurement function and complete the inertial navigation tilt measurement initialization (refer to...). Figure 6 ).

[0051] Next, remove the telescopic centering rod 3, referring to... Figure 7 and Figure 8 As shown, the rangefinder 1 connected to the RTK receiver 2 is used for measurement. When measuring a ground point, the laser rangefinder 7 is turned on to emit an infrared laser. The laser point is aligned with the point to be measured on the ground. The measurement button is pressed on the RTK handheld device 8 to complete the ranging and measurement functions in sequence. When the measurement button is pressed, the instrument needs to perform the following actions in sequence: ranging (the measured distance plus the length of the rangefinder 1, the sum of which is the antenna height), the antenna height column in the handheld device automatically displays the ranging value (i.e., the antenna height value); inertial navigation tilt parameter measurement (tilt angle and azimuth angle); coordinate and elevation value measurement; inertial navigation tilt correction based on the above measurement values, and the final measurement results of the point to be measured are displayed and stored.

[0052] This invention integrates a laser rangefinder 7 into the ranging rod 1. After point calibration and inertial navigation tilt measurement initialization are completed using the centering rod 3, the centering rod 3 can be removed. Non-contact ranging and measurement of the target point can be completed solely through the laser rangefinder 7 and the RTK device. This allows the RTK measuring rod to be applied to areas such as canal sides, wall corners, or other areas where it is not suitable for contact with the pointed end of the centering rod 3 or where there are safety hazards during field measurements. This expands the application range of the RTK measuring rod and improves the efficiency and safety of RTK field measurements.

[0053] The above description is merely a few embodiments of this application and is not intended to limit this application in any way. Although this application discloses preferred embodiments as described above, it is not intended to limit this application. Any changes or modifications made by those skilled in the art without departing from the scope of the technical solution of this application using the disclosed technical content are equivalent to equivalent implementation cases and fall within the scope of the technical solution.

Claims

1. A non-contact RTK measuring rod, characterized in that, The measuring rod includes: A distance measuring rod, which contains a laser rangefinder; the laser rangefinder is used to measure the distance between the point to be measured and the laser emission point; An RTK receiver is connected to the top of the ranging rod; both the RTK receiver and the laser rangefinder are wirelessly connected to the RTK handheld device; the RTK handheld device is used to control the operation of the RTK receiver and to receive measurement data from the RTK receiver and the laser rangefinder. A centering rod is detachably connected to the bottom end of the ranging rod; the bottom end of the centering rod stands on the control point or the ground.

2. The measuring rod according to claim 1, characterized in that, The bottom end of the measuring rod has a nut hole, through which the infrared laser emitted by the laser rangefinder can pass and illuminate the point to be measured.

3. The measuring rod according to claim 2, characterized in that, The top end of the centering rod is connected to the bottom end of the distance measuring rod by bolts.

4. The measuring rod according to claim 1, characterized in that, The measuring rod also includes: A power supply module is used to supply power to the laser rangefinder.

5. The measuring rod according to claim 4, characterized in that, The ranging rod has a cavity, and the laser rangefinder and the power supply module are both placed inside the cavity.

6. The measuring rod according to claim 5, characterized in that, The rangefinder rod has a detachable threaded interface on its shaft; the cavity is opened or closed through the detachable threaded interface.

7. The measuring rod according to claim 6, characterized in that, The power supply module consists of multiple batteries.

8. The measuring rod according to claim 7, characterized in that, The battery is a rechargeable lithium battery.

9. The measuring rod according to claim 1, characterized in that, The measuring rod also includes: A circular level is fixed to the rod of the measuring rod.

10. The measuring rod according to claim 1, characterized in that, The centering rod is a telescopic rod.

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