An auxiliary device for automatically calibrating the horizontal height difference and included angle between a measuring instrument and a measuring point.

Abstract

This utility model discloses an auxiliary device for automatically calibrating the horizontal height difference and angle between a measuring instrument and a measuring point. The device includes a support component, a displacement component, a limiting component, and an instrument mounting and / or adjustment component. The support component supports the auxiliary device and the measuring instrument. The displacement component directly or indirectly drives the measuring instrument to generate vertical / horizontal or other directional displacements. The limiting component precisely controls the displacement stroke of the auxiliary device and the measuring instrument. The instrument mounting and / or adjustment component fixes the measuring instrument to the auxiliary device and / or adjusts the posture of the measuring instrument. This auxiliary device for automatically calibrating the horizontal height difference and angle between a measuring instrument and a measuring point defines a precise physical displacement L through a mechanical structure and calculates it using the high-precision distance measurement value of the measuring instrument itself. The entire process completely eliminates the subjective operation of humans, fundamentally eliminating human error sources and resulting in extremely high accuracy and repeatability of the calibration results.

Description

Technical Field

[0001] This utility model relates to the field of precision instrument monitoring technology, specifically an auxiliary device for automatically calibrating the horizontal height difference and included angle between a measuring instrument and a measuring point. Background Technology

[0002] In fields such as civil engineering, mechanical engineering, and precision instrument monitoring, high-precision monitoring of the displacement and vibration response of structures such as bridges, high-rise buildings, and precision machine tools is a crucial step in assessing their operational status, safety performance, and predicting their lifespan. Currently, non-contact measuring instruments such as laser displacement sensors, microwave radar sensors, and eddy current displacement sensors are widely used in these applications. These instruments acquire dynamic or static displacement data of the structure by measuring the change in the relative distance between the probe and the point to be measured along the measurement axis. However, to accurately reflect the actual displacement of the structure in the horizontal or vertical direction, the static horizontal height difference or vertical angle between the instrument installation point and the measuring point must be precisely calibrated. If a horizontal height difference Δh exists, when the structure experiences a vertical displacement δ, a geometric error exists between the distance change δ' measured by the instrument and the actual displacement δ, leading to data distortion and severely affecting the reliability of the monitoring results.

[0003] Currently, the calibration of the horizontal height difference between measuring instruments and measuring points mainly relies on the following traditional methods:

[0004] Conventional tape measure method: This method involves manually holding a steel tape measure or leather tape measure, aligning one end with the center of the instrument, and reading the scale value at the measuring point from the other end. This method is limited by the flexibility and deflection error of the tape measure, human centering deviation, and parallax in visual readings, making it difficult to meet high-precision monitoring requirements and resulting in low operational efficiency. Level instrument method: This method requires setting up a level instrument near the instrument and the measuring point, calculating the height difference by reading the difference in the leveling rod readings at the two points. While this method offers higher equipment accuracy, the operational process is complex, requiring repeated leveling, rod adjustment, reading, and calculation. It relies on professional personnel and is prone to errors due to human error, and is difficult to adapt to large-scale, multi-point rapid calibration scenarios.

[0005] In addition, existing calibration techniques have the following common drawbacks:

[0006] Insufficient automation and integration: The calibration process is separated from the measuring instrument, requiring manual data recording and input into the analysis system, resulting in redundant and error-prone data flow links;

[0007] Poor adaptability to complex working conditions: For inaccessible measuring points such as cross-river bridges, towering towers, and dangerous slopes, manual calibration poses safety hazards and may even be impossible to implement;

[0008] Lack of dynamic monitoring support: Traditional methods are mainly based on static calibration, which cannot meet the real-time and continuous calibration requirements of dynamic scenarios such as structural vibration response.

[0009] In summary, there is an urgent need for a calibration device that is high-precision, high-efficiency, automated, and adaptable to complex working conditions, in order to address the shortcomings of existing technologies in terms of accuracy, reliability, safety, and intelligence. Utility Model Content

[0010] The purpose of this invention is to provide an auxiliary device for automatically calibrating the horizontal height difference and included angle between the measuring instrument and the measuring point, so as to solve the problem mentioned in the background art that it cannot meet the requirements of high precision, high efficiency and automated calibration, especially the significant limitations under complex working conditions.

[0011] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary device for automatically calibrating the horizontal height difference and included angle between a measuring instrument and a measuring point, comprising a support component, a displacement component, a limiting component, and an instrument adjustment component;

[0012] The supporting member is used to support the auxiliary device and measuring instrument, the displacement member is used to directly or indirectly drive the measuring instrument to generate vertical / horizontal or other directional displacement, the limiting member is used to accurately control the displacement stroke of the auxiliary device and measuring instrument, and the instrument mounting and / or adjustment member is used to fix the measuring instrument to the auxiliary device and / or adjust the posture of the measuring instrument.

[0013] The above technical solution employs a rigid support structure, which can flexibly adapt to different external support equipment. It secures external supports and auxiliary devices through high-strength connections, forming a stable mechanical support system. The displacement component is fixed to the support component and, through rigid connection, drives the measuring instrument to move, providing a data basis for calculating the horizontal height difference and angle between the measuring instrument and the measuring point. The limiting component is fixed or placed at other locations on the displacement component or auxiliary device, limiting the stroke endpoint of the displacement component through mechanical hard limiting or inductive sensors, ensuring precise control of the displacement stroke and the reliability and repeatability of the measurement process. The instrument mounting and / or adjustment component is fixed to the displacement component or limiting component, providing the function of fixing the measuring instrument and auxiliary device and / or adjusting the posture of the measuring instrument. This ensures rigid fixation and displacement transmission between the instrument mounting and / or adjustment component and the displacement component, and / or flexibly adjusts the posture of the measuring instrument, ensuring precise alignment of the measuring instrument's line of sight with the measuring point. The synergistic effect of these components enables the device to achieve rapid and high-precision horizontal height difference and angle calibration under complex working conditions, effectively solving the problems of low accuracy, poor efficiency, and insufficient safety inherent in traditional manual calibration methods.

[0014] As a preferred technical solution of this utility model, the supporting component adopts a rigid structure and is fixed on an external support.

[0015] By employing the above technical solution, the rigid support components maintain extremely high structural strength and stability when subjected to static gravity loads from auxiliary devices and measuring instruments, as well as dynamic impact loads from displacement components. Their deformation is minimal, effectively preventing device misalignment or accuracy reduction due to support component deformation. By securely mounting the support components to external supports, not only are the overall device's vibration resistance and overturning resistance enhanced, but the operational reliability under complex working conditions is also significantly improved. This structural design ensures that the device maintains good geometric stability and operational consistency during long-term use, thereby effectively extending the equipment's service life and ensuring high-precision, high-stability operation under various environmental conditions.

[0016] As a preferred technical solution of this utility model, the displacement component uses a high-precision guide rail as the guiding structure and the weight of the auxiliary device and measuring instrument as the driving force.

[0017] By adopting the above technical solution, the displacement component relies on a high-precision guide rail for linear guidance and support, which effectively reduces frictional resistance and offset errors during movement, ensuring the smoothness and repeatability of the displacement motion. Using the weight of the auxiliary device and measuring instrument as the driving force, the system can achieve stable and controllable displacement adjustment without an additional power source. This not only simplifies the structural design and reduces energy consumption and maintenance costs, but also avoids vibration interference introduced by external drive devices. This design makes the displacement process smoother and the response more sensitive, thereby significantly improving the accuracy of measurement data and the overall reliability of system operation, laying the foundation for the automation of the auxiliary device.

[0018] As a preferred technical solution of this utility model, the displacement component is equipped with a displacement locking mechanism, which is a knob type.

[0019] By employing the above technical solution, the rotary displacement locking mechanism equipped on the displacement component can precisely fix the auxiliary device and measuring instrument at the highest point of gravitational potential energy controlled by the limiting component, providing a basis for using the self-weight of the auxiliary device and measuring instrument to drive the displacement component. This rotary displacement locking mechanism is easy to operate; stable locking and unlocking can be achieved by rotating the knob, ensuring rapid adjustment and secure fixation of the auxiliary device and measuring instrument, significantly improving operational efficiency and safety. By locking at the highest point of gravitational potential energy, the displacement stroke of the auxiliary device and measuring instrument can be effectively controlled, avoiding unnecessary displacement and ensuring the stability and reliability of values ​​when calculating horizontal height differences and included angles, while also improving the overall stability and accuracy of the system.

[0020] As a preferred technical solution of this utility model, the limiting member limits the end point of the displacement member's stroke by mechanical hard limiting.

[0021] By employing the above technical solution, the mechanical hard limiter, through a precision-machined stop structure, provides a strong physical limit at the end of the displacement component's stroke, effectively preventing the component from exceeding the predetermined range. This limiter component is designed with high load-bearing capacity and wear resistance, maintaining stability and high efficiency during long-term use while reducing maintenance costs. Through the application of the hard limiter mechanism, the auxiliary device can ensure accurate positioning even in complex working environments, avoiding damage or malfunctions caused by overuse, thereby significantly improving the overall reliability and service life of the auxiliary device.

[0022] As a preferred technical solution of this utility model, the instrument mounting and / or adjustment components have multi-axis adjustment functions, including a horizontal rotation mechanism and a pitch adjustment mechanism, and the adjustment range is flexible and controllable.

[0023] By adopting the above technical solution, the instrument mounting and / or adjustment components, through the integration of a horizontal rotation mechanism and a pitch adjustment mechanism, achieve multi-degree-of-freedom adjustment capabilities, providing precise angle adjustment for the measuring instrument in multiple directions. This design makes the adjustment range of the instrument mounting and / or adjustment components flexible and controllable in both horizontal and vertical directions, meeting the diverse needs of different application scenarios for measuring instrument angle adjustment. The instrument mounting and / or adjustment components not only improve the adaptability and operability of the auxiliary devices but also enhance the stability of the auxiliary devices and measuring instruments during dynamic operation, ensuring higher accuracy and reliability during use.

[0024] As a preferred technical solution of this utility model, the connection surfaces of the support member and the displacement member, the displacement member and the limiting member, and the limiting member and the instrument installation and / or adjustment member are provided with anti-rotation / anti-slip structures.

[0025] By adopting the above technical solution, the connecting surfaces of the auxiliary device are equipped with anti-rotation and anti-slip structures, effectively preventing relative rotation or sliding of the auxiliary device and measuring instrument due to external forces or vibrations during displacement or long-term measurement. Precise connections between the support components and displacement components, displacement components and limiting components, and limiting components and instrument mounting and / or adjustment components ensure that each component maintains a stable relative position during operation, avoiding systematic errors caused by loosening. The anti-rotation / anti-slip structure, through its rational design and the application of high-strength materials, significantly improves the stability and durability of the auxiliary device during long-term operation, while reducing maintenance frequency and costs.

[0026] As a preferred technical solution of this utility model, the supporting component and the displacement component, the displacement component and the limiting component, and the limiting component and the instrument installation and / or adjustment component are connected by bolts.

[0027] By adopting the above technical solution, the connections between the supporting components and the displacement components, the displacement components and the limiting components, and the limiting components and the instrument mounting and / or adjusting components are made by bolts, ensuring a firm and stable connection between all components. Bolted connections offer excellent vibration resistance and load-bearing capacity, effectively resisting the impact of external forces and wear during long-term use, ensuring the device maintains a precise relative position during operation. Through bolted connections, the fit between the various components of the device is tighter, avoiding accuracy errors or operational instability caused by loose connections, ensuring efficient operation of the system under complex working conditions. This connection method not only simplifies the assembly and disassembly process and reduces maintenance difficulty, but also greatly improves the overall reliability and service life of the device.

[0028] Alternative solutions for displacement driving methods of displacement components

[0029] Alternative solution: Motor-driven displacement drive.

[0030] In the original design, the measuring instrument was driven by gravity through a displacement component. An alternative solution could use a stepper motor or a servo motor for driving.

[0031] Alternative solutions for the displacement direction of auxiliary devices and measuring instruments

[0032] Alternative solution: Horizontal displacement solution.

[0033] The original solution uses the vertical displacement L generated by the displacement component to drive the measuring instrument to calculate the horizontal height and included angle. The alternative solution can place the original displacement component horizontally or provide a horizontal displacement component with a known and accurate horizontal displacement L'.

[0034] Alternatives to displacement locking mechanisms

[0035] Alternative solution: Electromagnetic locking mechanism.

[0036] The original design used a knob-type displacement locking mechanism for the displacement component; the alternative is an electromagnetic lock. The workflow is as follows: when the displacement component is at its upper limit and needs to be locked, the electromagnetic lock is energized, causing the locking pin to pop out or the friction plate to press, thus locking the displacement of the auxiliary device and measuring instrument; when R1 measurement is completed, the power is turned off, the locking pin retracts or the friction plate releases, allowing the auxiliary device and measuring instrument to fall.

[0037] Alternative solutions for limit mechanisms

[0038] Alternative solution: Sensor-based limit switch.

[0039] The original solution relied on the mechanical hard limit of the limiting component to determine the lower position. The alternative solution is to install a sensing sensor, such as an inductive proximity switch, photoelectric switch or Hall sensor, at the lower end position of the slide rail. When the displacement component moves to the position of the sensing sensor, the sensing sensor sends a signal to the controller, and the controller confirms that the lower position has been reached.

[0040] Alternative solutions for connection methods between sub-components

[0041] Alternative solutions include one or more of the following: hinged, riveted, welded, and slotted connections, or a one-piece auxiliary structure.

[0042] In the original scheme, the support components and displacement components, the displacement components and limiting components, and the limiting components and instrument installation and / or adjustment components are rigidly bolted together. The alternative scheme connects the components by one or more of the following methods: hinge, riveting, welding and slot connection, or directly adopts an integrated auxiliary structure.

[0043] Alternatives to measuring instruments

[0044] Alternative: Any instrument with distance measurement capabilities.

[0045] The core principle of this utility model is to use "known displacement + distance measurement". Therefore, this auxiliary structure is not limited to use with a certain measuring instrument. It can be used with any other instrument with distance measurement function, such as laser rangefinders and ultrasonic rangefinders.

[0046] A method for calculating horizontal height difference and angle using known displacement and distance measurement is the core idea of ​​this invention. Unlike the traditional approach of directly measuring height difference, this method indirectly calculates the height difference and angle by constructing a geometric model containing a known physical displacement (L) and two measurable distances (R1, R2), or a model containing a known physical displacement (L) and one measurable distance (R1 or R2) and the absolute distance difference (R'). This fundamentally avoids the error sources of direct measurement. A mechanical auxiliary device capable of providing accurate and known displacement is the key physical carrier for realizing the above method. Its core feature is that it includes a displacement component and a limiting component, which work together to provide a precisely known stroke (L) and a determined motion trajectory. Displacement is the physical basis for ensuring calculation accuracy. Utilizing gravity as a simplified and reliable motion mechanism, the switching between two measurement positions is achieved through a "lock-release-gravity descent-limit" method. This requires no additional power source, has a simple structure, and a low failure rate, making it a key design point for achieving efficient and low-cost calibration. This invention is not an isolated measuring tool but an "auxiliary component" closely integrated with existing distance measuring instruments. It cleverly utilizes the instrument's own high-precision distance measuring function as the core data source, which is the key to this invention's ability to solve technical problems at low cost and with high integration. The limiting component not only serves as a connector but, more importantly, integrates a limiting function, providing a definite and repeatable stopping position for gravity descent.

[0047] Compared with existing technologies, the advantages of this utility model's automatic calibration measuring instrument and auxiliary device for determining the horizontal height difference and angle between measuring points are:

[0048] This invention defines a precise physical displacement L through a purely mechanical structure and calculates it using the high-precision distance measurement values ​​(R1 and R2 or R1 / R2 and R') of the measuring instrument itself. The entire process completely eliminates the subjective human operation, fundamentally eliminating the source of human error, resulting in calibration results with extremely high accuracy and repeatability.

[0049] The calibration process of this invention requires only four simple steps: "lock-measure-unlock-measure," enabling simultaneous calibration of horizontal elevation differences at multiple measuring points. The entire process can be completed automatically within 30 seconds. Compared to the cumbersome setup, leveling, reading, and calculation process of the level instrument method, the efficiency is greatly improved, and no professional skills are required for operation; ordinary engineers can quickly master it.

[0050] This utility model is not an independent measuring tool, but an "auxiliary component" closely integrated with a measuring instrument. It utilizes the instrument's own distance measurement function as the core data source, realizing a collaborative working mode of "mechanical displacement + instrument measurement," achieving automatic data acquisition and processing, and improving the system's integration.

[0051] This utility model is mainly composed of rigid mechanical components, with a stable structure and strong anti-interference ability. Its non-contact measurement principle allows operators to complete all operations from a safe location away from the measuring point, making it suitable for various complex working conditions such as bridges, high towers, and slopes.

[0052] The structural components used in this invention are all mature, standardized mechanical parts, resulting in low manufacturing costs and ease of processing and mass production. Its compact structure and standard connection interfaces make it easy to carry and deploy, and it exhibits good compatibility with existing measurement systems, giving it high potential for widespread application. Attached Figure Description

[0053] Figure 1 This is a schematic diagram of the upper limit structure of the preferred technical solution of the auxiliary device of this utility model;

[0054] Figure 2 This is a schematic diagram of the lower limit structure of the preferred technical solution of the auxiliary device of this utility model.

[0055] In the diagram: 1. Supporting component; 2. Displacement component; 3. Limiting component; 4. Instrument mounting and / or adjustment component. Detailed Implementation

[0056] Example 1: Preferred Implementation Scheme

[0057] In this embodiment, the descriptions of each sub-component are as follows:

[0058] Support component 1: Support component 1 adopts a rigid structure, which can be flexibly adapted to different external support equipment. It fixes the external support and auxiliary devices through a high-strength connection method to form a stable mechanical support system.

[0059] Displacement component 2: Displacement component 2 is fixed on support component 1 and drives the measuring instrument to move through a rigid connection, providing a data basis for calculating the horizontal height difference and included angle between the measuring instrument and the measuring point.

[0060] Limiting component 3: The limiting component 3 is fixed or placed at other positions of the displacement component 2 or auxiliary device, and limits the end point of the stroke of the displacement component 2 by mechanical hard limiting or inductive sensor, so as to ensure the accurate controllability of the displacement stroke and the reliability and repeatability of the measurement process.

[0061] Instrument mounting and / or adjustment component 4: The instrument mounting and / or adjustment component 4 is fixed on the displacement component 2 or the limiting component 3, and has the function of fixing the measuring instrument and auxiliary devices and / or adjusting the posture of the measuring instrument, ensuring the rigid fixation and displacement transmission between the instrument mounting and / or adjustment component 4 and the displacement component 2, and / or flexibly adjusting the posture of the measuring instrument, ensuring that the line of sight of the measuring instrument is accurately aligned with the measuring point.

[0062] 2. Operating steps and procedures

[0063] Step 1: Assemble the auxiliary components. Assemble the support component 1, displacement component 2, limiting component 3, and instrument mounting and / or adjustment component 4 in the following order as shown in the attached diagram. Figure 1 The auxiliary device shown.

[0064] Step 2: Installation and Adjustment. Install this auxiliary device onto the external support of the predetermined monitoring point via the support member 1; fix the measuring instrument onto the instrument mounting and / or adjustment member 4; adjust the instrument mounting and / or adjustment member 4 to ensure that the measuring line of sight of the measuring instrument is precisely aligned with the point to be measured.

[0065] Step 3: Measurement at the upper point. Loosen the locking knob of displacement component 2, pull displacement component 2 upward to raise the auxiliary device and measuring instrument to the highest point of the stroke, and then tighten the locking knob of displacement component 2 to fix the entire auxiliary device and measuring instrument in this position; perform a distance measurement through the measuring instrument to measure the absolute distance between the measuring instrument and the measuring point, and record it as R1.

[0066] Step 4: Lowering the measurement point. Loosen the locking knob of displacement component 2. The auxiliary device and measuring instrument will fall smoothly along displacement component 2 under their own weight until they reach the limit of limit component 3. After stabilization, the absolute distance between the measuring point and the measuring point can be obtained again by measuring instrument or the difference between the two absolute distances can be obtained directly. This difference is recorded as the second distance R2 or the absolute distance difference R'.

[0067] Step 5: Elevation difference calculation. In this embodiment, the precise stroke L of the displacement component 2 is known; the horizontal elevation difference H and the included angle α are automatically calculated by the data processing unit of the measuring instrument or an external portable computer using R1, R2 and L or R1, R' and L, and the calculation is recorded and calibration is completed.

[0068] Example 2: Implementation of an Alternative Solution for Motor Drive

[0069] In an alternative embodiment of this utility model, the driving method of using the weight of auxiliary devices and measuring instruments in the original solution is replaced by stepper motor or servo motor drive.

[0070] The operation procedure has changed to:

[0071] Step 1: Assemble the auxiliary components. Assemble the support component 1, displacement component 2, limiting component 3, and instrument mounting and / or adjustment component 4 in the following order as shown in the attached diagram. Figure 1 The auxiliary device shown.

[0072] Step 2: Installation and Adjustment. Install this auxiliary device onto the external support at the predetermined monitoring point using the support member 1; fix the measuring instrument onto the instrument mounting and / or adjustment member 4; adjust the instrument mounting and / or adjustment member 4 to ensure the measuring instrument's line of sight is precisely aligned with the point to be measured.

[0073] Step 3: Measurement at the upper position. The controller sends an "up" command to the motor, and the motor drives the auxiliary device and measuring instrument to automatically rise to the highest point through the displacement component 2, and is locked by the built-in brake or motor holding force; the measuring instrument performs a distance measurement to obtain the absolute distance between the measuring instrument and the measuring point, which is recorded as R1.

[0074] Step 4: Lowering point measurement. The controller sends a "descend" command to the motor, which drives the auxiliary device and measuring instrument to descend through the displacement component 2 until it reaches the limit position of the limit component 3; after stabilization, the absolute distance between it and the measuring point is obtained again through the measuring instrument, or the difference between the two absolute distances is directly obtained, which is recorded as the second distance R2 or the absolute distance difference R'.

[0075] Step 5: Elevation difference calculation. In this embodiment, the precise stroke L of the displacement component 2 is known; the horizontal elevation difference H and the included angle α are automatically calculated by the data processing unit of the measuring instrument or an external portable computer using R1, R2 and L or R1, R' and L, and the calculation is recorded and calibration is completed.

[0076] Example 3: Implementation of a Horizontal Displacement Alternative Solution

[0077] In an alternative embodiment of this utility model, the auxiliary device in the original solution is placed horizontally or a horizontal displacement member with a known precise horizontal displacement L' is provided.

[0078] The operation procedure has changed to:

[0079] Step 1: Assemble the auxiliary components. Assemble the support component 1, displacement component 2, limiting component 3, and instrument mounting and / or adjustment component 4 in the following order as shown in the attached diagram. Figure 1 The auxiliary device shown.

[0080] Step 2: Installation and Adjustment. Install this auxiliary device onto the external support at the predetermined monitoring point using the support member 1; fix the measuring instrument onto the instrument mounting and / or adjustment member 4; adjust the instrument mounting and / or adjustment member 4 to ensure the measuring instrument's line of sight is precisely aligned with the point to be measured.

[0081] Step 3: First point measurement. Loosen the locking knob of displacement component 2, move displacement component 2 to slide the entire auxiliary device and measuring instrument to the first point, then tighten the locking knob of displacement component 2 to fix the entire auxiliary device and measuring instrument in this position; perform a distance measurement through the measuring instrument to measure the absolute distance between the measuring instrument and the measuring point, and record it as R1.

[0082] Step 4: Second point measurement. Loosen the locking knob of displacement component 2, move displacement component 2 to smoothly move the entire auxiliary device and measuring instrument to the second point until it reaches the limit of limit component 3; after stabilization, use the measuring instrument to obtain the absolute distance between it and the measuring point again, or directly obtain the distance difference between the two absolute distances, and record it as the second distance R2 or the absolute distance difference R'.

[0083] Step 5: Elevation difference calculation. In this embodiment, the precise stroke L of the displacement component 2 is known; the horizontal elevation difference H and the included angle α are automatically calculated by the data processing unit of the measuring instrument or an external portable computer using R1, R2 and L or R1, R' and L, and the calculation is recorded and calibration is completed.

[0084] Example 4: Implementation of an Alternative Solution to the Locking Structure

[0085] In an alternative embodiment of this utility model, the displacement locking mechanism of the displacement member 2 in the original scheme is replaced with an electromagnetic locking mechanism, which is controlled by an external controller.

[0086] The operation procedure has changed to:

[0087] Step 1: Assemble the auxiliary components. Assemble the support component 1, displacement component 2, limiting component 3, and instrument mounting and / or adjustment component 4 in the following order as shown in the attached diagram. Figure 1 The auxiliary device shown.

[0088] Step 2: Installation and Adjustment. Install this auxiliary device onto the external support at the predetermined monitoring point using the support member 1; fix the measuring instrument onto the instrument mounting and / or adjustment member 4; adjust the instrument mounting and / or adjustment member 4 to ensure the measuring instrument's line of sight is precisely aligned with the point to be measured.

[0089] Step 3: Measurement at the upper position. Power off the electromagnetic lock via the controller, lift the displacement component 2 to raise the auxiliary device and measuring instrument to the highest point of its stroke. Then, power on the electromagnetic lock via the controller to make the locking pin pop out or the friction plate press to lock it, fixing the entire auxiliary device and measuring instrument in this position. Perform a distance measurement using the measuring instrument to obtain the absolute distance between the measuring instrument and the measuring point, denoted as R1.

[0090] Step 4: Lowering point measurement. The electromagnetic lock is de-energized by the controller, and the auxiliary device and measuring instrument fall smoothly along the displacement member 2 under their own gravity until they reach the limit position of the limit member 3. After stabilization, the absolute distance between the device and the measuring point is obtained again by the measuring instrument, or the difference between the two absolute distances is obtained directly and recorded as the second distance R2 or the absolute distance difference R'.

[0091] Step 5: Elevation difference calculation. In this embodiment, the precise stroke L of the displacement component 2 is known; the horizontal elevation difference H and the included angle α are automatically calculated by the data processing unit of the measuring instrument or an external portable computer using R1, R2 and L or R1, R' and L, and the calculation is recorded and calibration is completed.

[0092] Example 5: Implementation of an Alternative Solution for the Limiting Mechanism

[0093] In an alternative embodiment of this utility model, the limiting method of determining the lower position by mechanical hard limiting of the limiting member 3 in the original solution is replaced by a sensing sensor.

[0094] The operation procedure has changed to:

[0095] Step 1: Assemble the auxiliary components. Assemble the support component 1, displacement component 2, and instrument mounting and / or adjustment component 4 in sequence. Install a sensing sensor as a limit component 3 at the lower position of the displacement component 2, such as an inductive proximity switch, photoelectric switch, or Hall sensor.

[0096] Step 2: Installation and Adjustment. Install this auxiliary device onto the external support of the predetermined monitoring point via the support member 1; fix the measuring instrument onto the instrument mounting and / or adjustment member 4; adjust the instrument mounting and / or adjustment member 4 to ensure that the measuring line of sight of the measuring instrument is precisely aligned with the point to be measured.

[0097] Step 3: Measurement at the upper point. Loosen the locking knob of displacement component 2, pull displacement component 2 upward to raise the auxiliary device and measuring instrument to the highest point of the stroke, and then tighten the locking knob of displacement component 2 to fix the entire auxiliary device and measuring instrument in this position; perform a distance measurement through the measuring instrument to measure the absolute distance between the measuring instrument and the measuring point, and record it as R1.

[0098] Step 4: Lower position measurement. Loosen the locking knob of displacement component 2. The auxiliary device and measuring instrument will fall smoothly along displacement component 2 under their own gravity. When displacement component 2 moves to the position of the sensing sensor, the sensing sensor sends a signal to the controller. The controller then confirms that the lower position has been reached and obtains the absolute distance between it and the measuring point again through the measuring instrument, or directly obtains the distance difference between the two absolute distances, which is recorded as the second distance R2 or the absolute distance difference R'.

[0099] Step 5: Elevation difference calculation. In this embodiment, the precise stroke L of the displacement member 2 is known. The horizontal elevation difference H and the included angle α are automatically calculated by the data processing unit of the measuring instrument or an external portable computer using R1, R2 and L or R1, R' and L, and the calculation is recorded and calibrated.

[0100] Example 6: Implementation of an Alternative Solution for Sub-component Connection Methods

[0101] In the alternative embodiments of this utility model, the bolt connection method between the sub-components in the original solution is replaced by one or more of the following: hinge, riveting, welding and slot connection, or an integrated auxiliary structure is directly adopted.

[0102] The operation procedure has changed to:

[0103] Step 1: Assemble the auxiliary components. Assemble the support component 1, displacement component 2, limiting component 3, and instrument mounting and / or adjusting component 4 in sequence as shown in the attached diagram using one or more of the following methods: hinge, riveting, welding, and slot connection. Figure 1 The auxiliary device shown can be used, or an integrated auxiliary structure can be used directly.

[0104] Step 2: Installation and Adjustment. Install this auxiliary device onto the external support of the predetermined monitoring point via the support member 1; fix the measuring instrument onto the instrument mounting and / or adjustment member 4; adjust the instrument mounting and / or adjustment member 4 to ensure that the measuring line of sight of the measuring instrument is precisely aligned with the point to be measured.

[0105] Step 3: Measurement at the upper point. Loosen the locking knob of displacement component 2, pull displacement component 2 upward to raise the auxiliary device and measuring instrument to the highest point of the stroke, and then tighten the locking knob of displacement component 2 to fix the entire auxiliary device and measuring instrument in this position; perform a distance measurement through the measuring instrument to measure the absolute distance between the measuring instrument and the measuring point, and record it as R1.

[0106] Step 4: Lowering the measurement point. Loosen the locking knob of displacement component 2. The auxiliary device and measuring instrument will fall smoothly along displacement component 2 under their own weight until they reach the limit of limit component 3. After stabilization, the absolute distance between the measuring point and the measuring point can be obtained again by measuring instrument or the difference between the two absolute distances can be obtained directly. This difference is recorded as the second distance R2 or the absolute distance difference R'.

[0107] Step 5: Elevation difference calculation. In this embodiment, the precise stroke L of the displacement component 2 is known; the horizontal elevation difference H and the included angle α are automatically calculated by the data processing unit of the measuring instrument or an external portable computer using R1, R2 and L or R1, R' and L, and the calculation is recorded and calibration is completed.

Claims

1. An auxiliary device for automatically calibrating the horizontal height difference and included angle between a measuring instrument and a measuring point, characterized in that, Includes support components (1), displacement components (2), limiting components (3), and instrument mounting and / or adjustment components (4); The supporting member (1) is used to support the auxiliary device and measuring instrument, the displacement member (2) is used to directly or indirectly drive the measuring instrument to generate vertical / horizontal displacement, the limiting member (3) is used to accurately control the displacement stroke of the auxiliary device and measuring instrument, and the instrument installation and / or adjustment member (4) is used to fix the measuring instrument to the auxiliary device and / or adjust the posture of the measuring instrument.

2. The auxiliary device for automatically calibrating the horizontal height difference and the included angle between the surveying instrument and the surveying point according to claim 1, characterized in that: The support member (1) is fixed on the external support and is used to support and fix the entire auxiliary device and measuring instrument.

3. The auxiliary device for automatically calibrating the horizontal height difference and the included angle between the surveying instrument and the surveying point according to claim 1, characterized in that: The displacement member (2) is fixed on the support member (1) to provide the measuring instrument with a precise and controllable displacement stroke.

4. The auxiliary device for automatically calibrating the horizontal height difference and included angle between the measuring instrument and the measuring point according to claim 1, characterized in that: The limiting member (3) is fixed or placed on the displacement member (2) or auxiliary device, and the travel end point of the displacement member (2) is limited by mechanical hard limiting or sensing sensor.

5. The auxiliary device for automatically calibrating the horizontal height difference and included angle between the measuring instrument and the measuring point according to claim 1, characterized in that: The instrument mounting and / or adjustment component (4) is directly or indirectly fixed on the displacement component (2) for fixing the measuring instrument to the auxiliary device and / or adjusting the attitude of the measuring instrument.

6. The auxiliary device for automatically calibrating the horizontal height difference and included angle between the measuring instrument and the measuring point according to claim 1, characterized in that: The horizontal height difference and vertical angle between the measuring instrument and the measuring point can be calculated based on geometric relationships using a known physical displacement (L) and two measurable distances (R1, R2) or a known physical displacement (L) and a measurable distance (R1, R2) and the difference in distances before and after (R').

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