High formwork inclination monitor

By combining a triaxial MEMS tilt sensor and a Kalman filter algorithm with a vibration filter and a temperature sensor, the problem of inaccurate monitoring by traditional tilt meters under high-frequency vibration and environmental changes is solved, achieving high-precision and timely monitoring of high formwork tilt.

CN223940278UActive Publication Date: 2026-02-24GUANGDONG CONSTR ENG QUALITY & SAFETY INSPECTION STATION CO LTD
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Patent Information

Application Number
CN202520701088.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-14
Publication Date
2026-02-24
Estimated Expiration
2035-04-14

AI Technical Summary

Technical Problem

Traditional inclinometers struggle to capture the true tilt under high-frequency vibrations, are sensitive to environmental interference, and lack effective temperature compensation and vibration suppression modules, resulting in inaccurate tilt monitoring of high-support formwork and susceptibility to environmental influences.

Method used

It employs a three-axis MEMS tilt sensor combined with a Kalman filter algorithm, and is equipped with a vibration filter and an integrated temperature sensor to improve dynamic monitoring accuracy. It also pushes alarms in real time via a wireless transmitter and supports 4G and LoRa dual-mode communication.

Benefits of technology

Maintain high-precision monitoring under vibration and temperature change environments, provide timely alarms and improve monitoring efficiency to ensure the accuracy and timeliness of high formwork tilt detection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a high formwork inclination monitor, which relates to the technical field of building construction safety monitoring and comprises a monitoring box, and a monitoring assembly and a control assembly are arranged in the monitoring box. The monitoring assembly comprises a three-axis MEMS tilt angle sensor, the three-axis MEMS tilt angle sensor is fixedly connected with one side in the monitoring box, a vibration filter and an integrated temperature sensor are sequentially arranged on one side of the three-axis MEMS tilt angle sensor, the vibration filter is fixedly connected with the bottom in the monitoring box, and the integrated temperature sensor is arranged on the other side of the three-axis MEMS tilt angle sensor. And the multiple integrated temperature sensors are fixedly connected with the two sides in the monitoring box correspondingly, the control assembly comprises a main controller, and a wireless transmitter and a storage battery are arranged on one side of the main controller. According to the utility model, through the arrangement of the monitoring assembly, the dynamic monitoring precision is effectively improved, through the combination of the three-axis MEMS tilt angle sensor and the Kalman filtering algorithm, the high-strength measurement precision can still be maintained in a vibration environment, and the measurement efficiency is greatly improved.
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Description

Technical Field

[0001] This utility model relates to the field of building construction safety monitoring technology, specifically a high formwork tilt monitoring instrument. Background Technology

[0002] High formwork (tall formwork support system) is widely used in large-span, high-space concrete pouring projects, such as stadiums and core tubes of high-rise buildings. Since the formwork height usually exceeds 8m, and can even reach more than 20m, during the concrete pouring process, the dynamic loads borne by the formwork system (such as pumping impact force, asymmetrical pouring, etc.) and uneven settlement of the foundation can easily cause the support frame to tilt. If the tilt exceeds the critical value, it may trigger a chain of instability and even cause a collapse accident. High formwork is in a state of continuous micro-deformation during the pouring process. The sampling frequency and filtering algorithm (such as moving average) of traditional inclinometers are difficult to capture the true tilt under high-frequency vibration. There is also sensitivity to environmental interference: temperature difference (-5℃~50℃) and mechanical vibration (such as vibratory rod operation) at the construction site can cause the sensor to drift. Existing products lack effective temperature compensation and vibration suppression modules.

[0003] Based on this, a high formwork tilt monitoring device is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0004] The purpose of this invention is to provide a high formwork tilt monitoring device to solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A high formwork tilt monitoring device includes a monitoring box, wherein a monitoring component and a control component are provided inside the monitoring box;

[0007] The monitoring component includes a three-axis MEMS tilt sensor, which is fixedly connected to one side of the monitoring box. A vibration filter and an integrated temperature sensor are sequentially arranged on one side of the three-axis MEMS tilt sensor. The vibration filter is fixedly connected to the bottom of the monitoring box. Several integrated temperature sensors are arranged and fixedly connected to both sides of the monitoring box. The control component includes a main controller, and a wireless transmitter and a battery are arranged on one side of the main controller.

[0008] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0009] In one alternative: the main controller is an STM32 microprocessor with a built-in Kalman filter tilt algorithm.

[0010] In one alternative: the wireless transmitter is an EC200T+RA-02 module combination and is electrically connected to an external cloud monitoring platform; the wireless transmitter supports 4G and LoRa dual-mode communication.

[0011] In one alternative: an audible and visual alarm is installed through one side of the monitoring box, and a control panel is fixedly connected to one side of the upper surface of the monitoring box.

[0012] In one alternative: the control panel is electrically connected to the audible and visual alarm, the monitoring component, and the control component, respectively.

[0013] In one alternative: a connection component is provided on one side of the monitoring box.

[0014] In one alternative embodiment: the connecting assembly includes a retainer, with a fixing block and a hinge seat fixedly connected to each end of the retainer, one end of the fixing block being fixedly connected to the middle of one side of the monitoring box, a buckle being hinged to the inner side of the hinge seat, a connecting block being fixedly connected to the other end of the buckle, a locking assembly being provided between the fixing block and the connecting block, and anti-slip pads being fixedly connected to adjacent sides of the buckle and the retainer.

[0015] In one alternative: the locking assembly includes a locking bolt, one end of which passes through the fixing block and the connecting block and is threadedly connected to a locking nut.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This invention effectively improves dynamic monitoring accuracy through its monitoring components. By combining a three-axis MEMS tilt sensor with a Kalman filter algorithm, it maintains high measurement accuracy even in vibration environments, greatly improving measurement efficiency. Furthermore, the inclusion of a vibration filter and an integrated temperature sensor effectively compensates for temperature drift in real time, further enhancing monitoring accuracy. When the tilt value exceeds a threshold, an audible and visual alarm is triggered simultaneously, and data is pushed to the cloud via a wireless transmitter, effectively improving the timeliness and efficiency of monitoring. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is an exploded view of the overall structure of this utility model.

[0020] Figure 3 This is an exploded view of the connecting component structure of this utility model.

[0021] Figure 4 This is a schematic diagram of the internal structure of the monitoring box of this utility model.

[0022] Figure label annotations: 1. Monitoring box; 2. Control panel; 3. Audible and visual alarm; 4. Card holder; 5. Hinge seat; 6. Buckle; 7. Fixing block; 8. Connecting block; 9. Anti-slip pad; 10. Locking bolt; 11. Locking nut; 12. Triaxial MEMS tilt sensor; 13. Main controller; 14. Vibration filter; 15. Integrated temperature sensor; 16. Wireless transmitter; 17. Battery. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0024] In one embodiment, such as Figures 1-4 As shown, the high formwork tilt monitoring device includes a monitoring box 1, which contains a monitoring component and a control component.

[0025] The monitoring component includes a three-axis MEMS tilt sensor 12, which is fixedly connected to one side of the monitoring box 1. A vibration filter 14 and an integrated temperature sensor 15 are sequentially arranged on one side of the three-axis MEMS tilt sensor 12. The vibration filter 14 is fixedly connected to the bottom of the monitoring box 1. Several integrated temperature sensors 15 are arranged and fixedly connected to both sides of the monitoring box 1. The control component includes a main controller 13, and a wireless transmitter 16 and a battery 17 are arranged on one side of the main controller 13.

[0026] In this embodiment, automatic calibration is performed after power-on. An initial reference plane is obtained through an inclination sensor, and then monitoring begins. The triaxial MEMS inclination sensor 12 collects the X / Y / Z axial tilt data of the high support. The vibration filter 14 and the integrated temperature sensor 15 are environmental compensation modules to eliminate environmental interference. The triaxial MEMS inclination sensor 12 monitors tilt changes in real time. The data is filtered by the main controller 13 and then uploaded through the wireless transmitter 16. When the tilt angle exceeds a preset threshold, the audible and visual alarm 3 is triggered, and an on-site audible and visual alarm is triggered. A text message is also sent to the management personnel through the wireless transmitter 16.

[0027] In one embodiment, such as Figure 4 As shown, the main controller 13 is an STM32 microprocessor and has a built-in Kalman filter tilt algorithm to calculate the tilt angle.

[0028] In one embodiment, such as Figure 4 As shown, the wireless transmitter 16 is an EC200T+RA-02 module combination and is electrically connected to an external cloud monitoring platform. The wireless transmitter 16 supports 4G and LoRa dual-mode communication to ensure the stability of wireless communication.

[0029] In one embodiment, such as Figure 1 As shown, an audible and visual alarm 3 is installed through one side of the monitoring box 1, and a control panel 2 is fixedly connected to one side of the upper surface of the monitoring box 1 for controlling the device and the audible and visual alarm.

[0030] In one embodiment, such as Figure 1 As shown, the control panel 2 is electrically connected to the audible and visual alarm 3, the monitoring component, and the control component, respectively, so that staff can operate the device through the control panel 2.

[0031] In one embodiment, such as Figure 1 As shown, a connecting component is provided on one side of the monitoring box 1 for fixing the monitoring instrument.

[0032] In one embodiment, such as Figure 3 As shown, the connecting assembly includes a retainer 4, with a fixing block 7 and a hinge seat 5 fixedly connected to both ends of the retainer 4. One end of the fixing block 7 is fixedly connected to the middle of one side of the monitoring box 1. A buckle 6 is hinged to the inner side of the hinge seat 5. A connecting block 8 is fixedly connected to the other end of the buckle 6. A locking assembly is provided between the fixing block 7 and the connecting block 8. Anti-slip pads 9 are fixedly connected to adjacent sides of the buckle 6 and the retainer 4. After opening the buckle 6 and the retainer 4, they are then wrapped around the support rod of the high support formwork and tightened. The anti-slip pads 9 prevent slippage. Then, the fixing block 7 and the connecting block 8 are locked by the locking bolt 10 and the locking nut 11 to complete the fixing of the monitoring box 1.

[0033] In one embodiment, such as Figure 3 As shown, the locking assembly includes a locking bolt 10, one end of which passes through the fixing block 7 and the connecting block 8 and is threadedly connected to a locking nut 11, which is used to lock the card seat 4 and the buckle 6.

[0034] The above embodiment discloses a high formwork tilt monitoring device. The buckle 6 and the mounting base 4 are opened, and then the support rod of the high formwork is wrapped around it and tightened. Anti-slip pad 9 prevents slippage. Then, the fixing block 7 and the connecting block 8 are locked using locking bolts 10 and locking nuts 11, completing the fixing of the monitoring box 1. After power-on, automatic calibration is performed, and an initial reference plane is obtained through the tilt sensor. Monitoring then begins. The triaxial MEMS tilt sensor 12 collects the X / Y / Z axial tilt data of the high formwork. Vibration filter 14 and integrated temperature sensor 15 serve as an environmental compensation module to eliminate environmental interference. The triaxial MEMS tilt sensor 12 monitors tilt changes in real time. The data is filtered by the main controller 13 and then uploaded via a wireless transmitter 16. When the tilt angle exceeds a preset threshold, an audible and visual alarm 3 is triggered, triggering an on-site audible and visual alarm and sending a text message to management personnel via the wireless transmitter 16.

[0035] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A high formwork tilt monitoring device, comprising a monitoring box (1), wherein the monitoring box (1) is provided with a monitoring component and a control component; Its features are, The monitoring component includes a three-axis MEMS tilt sensor (12), which is fixedly connected to one side of the monitoring box (1). A vibration filter (14) and an integrated temperature sensor (15) are sequentially arranged on one side of the three-axis MEMS tilt sensor (12). The vibration filter (14) is fixedly connected to the bottom of the monitoring box (1). Several integrated temperature sensors (15) are arranged and fixedly connected to both sides of the monitoring box (1). The control component includes a main controller (13), which is equipped with a wireless transmitter (16) and a battery (17) on one side.

2. The high formwork tilt monitoring instrument according to claim 1, characterized in that, The main controller (13) is an STM32 microprocessor and has a built-in Kalman filter tilt algorithm.

3. The high formwork tilt monitoring instrument according to claim 1, characterized in that, The wireless transmitter (16) is an EC200T+RA-02 module combination and is electrically connected to an external cloud monitoring platform. The wireless transmitter (16) supports 4G and LoRa dual-mode communication.

4. The high formwork tilt monitoring instrument according to claim 1, characterized in that, An audible and visual alarm (3) is installed through one side of the monitoring box (1), and a control panel (2) is fixedly connected to one side of the upper surface of the monitoring box (1).

5. The high formwork tilt monitoring instrument according to claim 4, characterized in that, The control panel (2) is electrically connected to the audible and visual alarm (3), the monitoring component, and the control component, respectively.

6. The high formwork tilt monitoring instrument according to claim 1, characterized in that, A connection component is provided on one side of the monitoring box (1).

7. The high formwork tilt monitoring instrument according to claim 6, characterized in that, The connecting assembly includes a card holder (4), with a fixing block (7) and a hinge seat (5) fixedly connected to both ends of the card holder (4). One end of the fixing block (7) is fixedly connected to the middle of one side of the monitoring box (1). A buckle (6) is hinged to the inner side of the hinge seat (5). A connecting block (8) is fixedly connected to the other end of the buckle (6). A locking assembly is provided between the fixing block (7) and the connecting block (8). Anti-slip pads (9) are fixedly connected to adjacent sides of the buckle (6) and the card holder (4).

8. The high formwork tilt monitoring instrument according to claim 7, characterized in that, The locking assembly includes a locking bolt (10), one end of which passes through the fixing block (7) and the connecting block (8) and is threadedly connected to a locking nut (11).