A real-time monitoring device for verticality of a tower crane

Abstract

This invention provides a real-time monitoring device for tower crane verticality, relating to the field of construction monitoring technology. The device includes a tilt angle sensing unit, a data acquisition unit, a data processing unit, a communication unit, and a power management unit. These units work together via electrical connections to achieve real-time acquisition, processing, and remote transmission of tilt angle signals. By integrating multi-module electrical connections and a compensation mechanism, this invention improves the accuracy, stability, and ease of use of tower crane verticality monitoring, making it suitable for safety monitoring in fields such as smart construction sites.

Description

Technical Field

[0001] This utility model relates to the field of construction monitoring technology, and in particular to a real-time monitoring device for the verticality of tower cranes. Background Technology

[0002] Various tower crane verticality monitoring devices are widely used on construction sites, mainly based on mechanical pointers, bubble levels, or optical inclinometers. However, these solutions suffer from poor real-time performance, large errors in manual reading, and difficulty in achieving remote monitoring, making it difficult to meet the dual requirements of safety and efficiency in modern smart construction sites.

[0003] With the rapid development of the Internet of Things and smart sensing technologies, tilt sensors and wireless communication modules are gradually becoming the new mainstream for tilt monitoring. While online detection systems based on tilt sensors and data acquisition terminals already exist on the market, most rely on mechanical structure calibration, making on-site installation and debugging complex, and their real-time data processing capabilities are limited.

[0004] Existing technologies mostly rely on mechanical structures for correction and stabilization, resulting in poor reliability and difficult maintenance. There is a lack of a unified electrical connection structure between tilt measurement and data transmission modules, leading to scattered modules and complex interfaces. Real-time monitoring devices cannot form a remote closed-loop early warning system, and sensor error compensation methods are outdated, resulting in substandard overall measurement accuracy and stability. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a real-time monitoring device for tower crane verticality. By integrating multi-module electrical connections and a real-time compensation mechanism, it realizes high-precision real-time monitoring, remote transmission and local intuitive display of tower crane verticality data, which significantly improves the monitoring accuracy, stability and ease of use.

[0006] To achieve the above objectives, this utility model provides the following solution:

[0007] A real-time monitoring device for the verticality of a tower crane, comprising:

[0008] The tilt sensing unit is used to acquire the tilt angle signal of the tower crane structure in three-dimensional space;

[0009] A data acquisition unit, connected to the tilt sensing unit, is used to receive and digitize the tilt signal to obtain a digital tilt signal;

[0010] The data processing unit receives the digital tilt angle signal from the data acquisition unit via electrical connection and performs real-time calculations according to a preset algorithm to generate the current verticality status data of the tower crane.

[0011] The communication unit is connected to the data processing unit via an electrical connection and is used to wirelessly or wiredly transmit the processed verticality status data to the remote monitoring terminal.

[0012] The power management unit provides a stable power supply to the tilt sensing unit, the data acquisition unit, the data processing unit, and the communication unit via electrical connection, and supports overvoltage, overcurrent, and temperature protection.

[0013] Preferably, the tilt sensing unit includes at least one pair of mutually orthogonally mounted MEMS tilt sensors, which acquire the tilt angles of the X-axis and Y-axis in a differential manner.

[0014] Preferably, the data processing unit includes a microcontroller, a tilt zero-point correction module, and a temperature compensation module, wherein both the tilt zero-point correction module and the temperature compensation module are electrically connected to the microcontroller via an internal digital bus;

[0015] The tilt zero-point correction module is configured to perform zero-point offset correction on the digital tilt signal from the data acquisition unit; the temperature compensation module is configured to perform temperature drift compensation on the tilt data after zero-point correction based on the temperature information acquired synchronously with the digital tilt signal; after receiving the tilt data after zero-point correction and temperature compensation processing, the microcontroller generates tower crane verticality status data and outputs it to the communication unit.

[0016] Preferably, the power management unit internally includes a voltage regulation module, a current protection module, and a temperature protection module. The voltage regulation module, the current protection module, and the temperature protection module are interconnected through internal circuits and supply power to each unit through a unified circuit interface. The voltage regulation module is configured to regulate the input power supply and output a constant operating voltage. The current protection module is configured to cut off the power supply or provide current limiting protection when the output current exceeds a preset threshold. The temperature protection module is configured to perform over-temperature power-off or power limiting protection when an abnormal operating temperature of the unit is detected, so as to ensure the power supply safety and stability of the overall system.

[0017] Preferably, the communication unit includes a cellular communication module and a Wi-Fi communication module, both of which are electrically connected to the data processing unit.

[0018] The communication unit is equipped with a network switching control module, which is connected to the cellular communication module and the Wi-Fi communication module via electrical connection. The network switching control module is configured to select cellular communication or Wi-Fi communication as the data transmission path according to a preset priority rule.

[0019] Preferably, it further includes:

[0020] A local display unit, which is electrically connected to the data processing unit;

[0021] The local display unit includes a display screen and a driving circuit. The driving circuit is connected to the display screen via an electrical connection and interacts with the data processing unit. The local display unit is configured to receive tilt angle data and verticality deviation information output in real time by the data processing unit, and display the tilt angle value, deviation status and corresponding prompt information in digital or graphical form on the display screen in real time for on-site operators to view intuitively.

[0022] Preferably, the microcontroller is an STM32F407VGT6.

[0023] The present invention discloses the following technical effects:

[0024] (1) In view of the shortcomings of existing tower crane verticality monitoring devices, such as poor real-time performance, large manual reading error, inability to monitor remotely, and insufficient sensor error compensation capability, this utility model proposes a real-time monitoring device that integrates tilt sensing, data acquisition, data processing, communication and display functions through an electrical connection structure, realizing high-precision, real-time acquisition and transmission of verticality data, and significantly improving monitoring accuracy and ease of use.

[0025] (2) This utility model collects multi-dimensional tilt information of tower crane in real time through tilt sensing unit. Combined with the tilt zero point correction and temperature compensation module built into the data processing unit, it can effectively eliminate the influence of initial sensor error and temperature drift. Compared with traditional mechanical or single sensor solutions, it improves the accuracy and long-term stability of measurement results and ensures the authenticity and reliability of monitoring data.

[0026] (3) The data acquisition unit and data processing unit of this utility model are efficiently coordinated through electrical connection. Combined with the built-in cellular and Wi-Fi modules and switching mechanism of the communication unit, it ensures continuous and stable remote data transmission in complex construction site environments, breaking through the limitation of existing devices that are limited to local manual reading and meeting the needs of remote supervision of modern smart construction sites.

[0027] (4) The local display unit set in this utility model can output tilt angle data and deviation status simultaneously, which makes it convenient for on-site personnel to quickly grasp the status of the tower crane. Combined with the power management unit, it provides voltage stabilization, overcurrent and temperature protection functions, further improving the safety, reliability and industrial application adaptability of the overall device, and has good prospects for promotion and application. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 A schematic diagram of the device structure provided for an embodiment of this utility model.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Tilt sensing unit; 2. Data acquisition unit; 3. Data processing unit; 4. Communication unit; 5. Power management unit. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] The purpose of this invention is to provide a real-time monitoring device for tower crane verticality. By integrating multi-module electrical connections and a real-time compensation mechanism, it can achieve high-precision real-time monitoring, remote transmission, and local intuitive display of tower crane verticality data, significantly improving monitoring accuracy, stability, and ease of use.

[0034] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] Figure 1 A schematic diagram of the device structure provided for an embodiment of this utility model is shown below. Figure 1 As shown, the tower crane verticality real-time monitoring device provided by this utility model includes an inclination sensing unit 1, a data acquisition unit 2, a data processing unit 3, a communication unit 4, and a power management unit 5. The units are connected by electricity to form a unified working system, realizing real-time monitoring of the verticality status of the tower crane structure in three-dimensional space and remote data transmission.

[0036] The tilt sensing unit 1 preferably includes a pair of MEMS tilt sensors installed orthogonally to each other, which are used to collect tilt angle changes in the X-axis and Y-axis directions respectively. More accurate tilt angle data is obtained through differential calculation, avoiding the accumulation of errors caused by single-direction measurement. The tilt sensing unit 1 outputs a simulated tilt angle signal to the data acquisition unit 2.

[0037] The data acquisition unit 2 is electrically connected to the tilt sensing unit 1 and contains an analog-to-digital converter circuit to convert the received tilt angle analog signal into a digital signal in real time, outputting the digital tilt angle signal to the data processing unit 3. The data acquisition unit 2 ensures the stability and accuracy of data sampling, providing a reliable foundation for subsequent data processing.

[0038] The data processing unit 3 includes an STM32F407VGT6 microcontroller, and an internal tilt zero-point correction module and a temperature compensation module electrically connected via a digital bus. The tilt zero-point correction module corrects the initial zero-point offset of the digital tilt signal, eliminating sensor installation or initial errors. The temperature compensation module corrects for temperature drift in the tilt data based on ambient temperature data collected synchronously with the tilt signal, further improving data stability and accuracy. The data processed in this dual manner is then used by the microcontroller to generate tower crane verticality status data, which is transmitted to the communication unit 4 and the local display unit.

[0039] Specifically, modern MEMS inertial sensors (such as IMUs or dual-axis tilt modules) generally have a built-in zero-point bias calibration module, which communicates with the main control chip via electrical connection to achieve initial deviation correction before digital measurement. For example, the 10-DOFIMU module completes bias calibration at the factory and has digital filtering and compensation mechanisms in the circuit. This type of calibration has become part of modular sensor design and does not constitute the core technological breakthrough of this utility model.

[0040] Furthermore, similar products, such as dual-axis tilt modules, widely employ temperature compensation hardware. Internally, these modules use temperature sensors and an MCU for real-time temperature drift correction. For example, SkyMEMS reports that its Inclinometer module has an extremely low temperature coefficient (≤±0.001° / ℃) and achieves temperature compensation during the measurement phase through electrical connections. This type of functionality is readily available commercial technology and is standard practice in the industry, and it does not conflict with the core structure of this invention, which primarily uses electrical connections to form the overall module device.

[0041] In this embodiment, the microcontroller reads the triaxial acceleration data output by the tilt sensor and calculates the tilt angle based on standard trigonometric functions (such as arctan2), thereby generating verticality status data that reflects the tower crane's deviation from verticality. This calculation method is consistent with the method used in ST's official design guidelines for real-time tilt angle calculation using an STM32 microcontroller.

[0042] The communication unit 4 includes a cellular communication module and a Wi-Fi communication module, both of which are electrically connected to the data processing unit 3. The communication unit 4 internally includes a network switching control module, which automatically selects either cellular or Wi-Fi communication as the data transmission path based on current network signal strength, transmission quality, or a preset priority strategy. This ensures the continuity and stability of remote data transmission and adapts to the communication environment requirements of different construction sites.

[0043] The power management unit 5 supplies power to the tilt sensing unit 1, data acquisition unit 2, data processing unit 3, and communication unit 4 via electrical connections. Internally, it includes a voltage regulation module, a current protection module, and a temperature protection module. The voltage regulation module stabilizes the input power supply to output a constant voltage; the current protection module limits current or cuts off power in case of overcurrent; and the temperature protection module limits power or cuts off power in case of abnormal temperature rise, ensuring the overall system's electrical safety and stable operation, and extending the equipment's service life.

[0044] This embodiment further includes a local display unit, which is connected to the data processing unit 3 via an electrical connection. The local display unit includes a display screen and a driving circuit. The driving circuit receives the output signal from the data processing unit 3 and drives the display screen to display tilt angle data, verticality deviation information and status prompts in real time in the form of numbers, graphics or text, so that on-site operators can quickly grasp the vertical status of the tower crane and improve operational safety and management efficiency.

[0045] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0046] This document uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. Furthermore, those skilled in the art will recognize that, based on the ideas of this utility model, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A device for real-time monitoring of the verticality of a tower crane, characterized in that, include: The tilt sensing unit is used to acquire the tilt angle signal of the tower crane structure in three-dimensional space; A data acquisition unit, connected to the tilt sensing unit, is used to receive and digitize the tilt signal to obtain a digital tilt signal; The data processing unit receives the digital tilt angle signal from the data acquisition unit via electrical connection and performs real-time calculations according to a preset algorithm to generate the current verticality status data of the tower crane. The communication unit is connected to the data processing unit via an electrical connection and is used to wirelessly or wiredly transmit the processed verticality status data to the remote monitoring terminal. The power management unit provides a stable power supply to the tilt sensing unit, the data acquisition unit, the data processing unit, and the communication unit via electrical connection, and supports overvoltage, overcurrent, and temperature protection. The tilt sensing unit includes at least one pair of mutually orthogonally mounted MEMS tilt sensors, which acquire the tilt angles of the X-axis and Y-axis in a differential manner; The data processing unit includes a microcontroller, a tilt zero-point correction module, and a temperature compensation module. Both the tilt zero-point correction module and the temperature compensation module are electrically connected to the microcontroller via an internal digital bus. The tilt zero-point correction module is configured to perform zero-point offset correction on the digital tilt signal from the data acquisition unit; the temperature compensation module is configured to perform temperature drift compensation on the tilt data after zero-point correction based on the temperature information acquired synchronously with the digital tilt signal; after receiving the tilt data after zero-point correction and temperature compensation processing, the microcontroller generates tower crane verticality status data and outputs it to the communication unit.

2. The real-time monitoring device for the verticality of a tower crane according to claim 1, characterized in that, The power management unit internally includes a voltage regulation module, a current protection module, and a temperature protection module. The voltage regulation module, the current protection module, and the temperature protection module are interconnected through internal circuits and supply power to each unit through a unified circuit interface. The voltage regulation module is configured to regulate the input power supply and output a constant operating voltage. The current protection module is configured to cut off the power supply or provide current limiting protection when the output current exceeds a preset threshold. The temperature protection module is configured to perform over-temperature power-off or power limiting protection when an abnormal operating temperature of the unit is detected, so as to ensure the power supply safety and stability of the overall system.

3. The real-time monitoring device for the verticality of a tower crane according to claim 1, characterized in that, The communication unit includes a cellular communication module and a Wi-Fi communication module, both of which are electrically connected to the data processing unit. The communication unit is equipped with a network switching control module, which is connected to the cellular communication module and the Wi-Fi communication module via electrical connection. The network switching control module is configured to select cellular communication or Wi-Fi communication as the data transmission path according to a preset priority rule.

4. The real-time monitoring device for the verticality of a tower crane according to claim 1, characterized in that, Also includes: A local display unit, which is electrically connected to the data processing unit; The local display unit includes a display screen and a driving circuit. The driving circuit is connected to the display screen via an electrical connection and interacts with the data processing unit. The local display unit is configured to receive tilt angle data and verticality deviation information output in real time by the data processing unit, and display the tilt angle value, deviation status and corresponding prompt information in digital or graphical form on the display screen in real time for on-site operators to view intuitively.

5. The real-time monitoring device for the verticality of a tower crane according to claim 1, characterized in that, The microcontroller model is STM32F407VGT6.

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