A laser ranging-based settlement matrix monitoring device for heating pipelines

Abstract

This utility model relates to the field of heating pipeline settlement monitoring technology, specifically a heating pipeline settlement matrix monitoring device based on laser ranging. It includes a housing, a cover, a measuring mechanism, a settlement observation chamber, a motion mechanism, a control module, a communication module, and a host computer. The housing is a long, rectangular box with a cover fixed to the top. The motion mechanism is located on the underside of the cover and includes two parallel slide rails fixed to the underside of the cover. Each slide rail has a sliding seat mounted on it, and a fixing plate is fixed to the bottom of the two sliding seats. A power device is mounted on the fixing plate. The measuring mechanism includes a laser ranging module fixed to the underside of the fixing plate of the motion mechanism. The control module and communication module are also fixed to the underside of the fixing plate. The settlement observation chamber is located in an opening at the bottom of the housing and extends beyond the bottom of the housing. Legs are installed below the housing, extending to the hard soil layer. The settlement observation chamber is buried in the soft soil layer. The power device drives the laser ranging module to move along the slide rails periodically to measure the height change of the settlement observation chamber.

Description

Technical Field

[0001] This utility model relates to the field of heating pipeline settlement monitoring technology, specifically a heating pipeline settlement matrix monitoring device based on laser ranging. The matrix monitoring system based on laser ranging technology is used to monitor the ground settlement when the heating pipeline passes through the settlement zone in real time, so as to ensure the safe operation of the pipeline. Background Technology

[0002] During the construction of heating pipelines, if the pipelines need to cross settlement or subsidence areas, failure to conduct timely monitoring of foundation settlement will pose serious safety hazards to the future operation of the heating network. Settlement areas typically refer to areas with unstable geological conditions, such as soft soil layers, mining remnants, or urban landfills. The foundations in these areas are prone to deformation due to changes in groundwater levels, increased load, or natural settlement. Pipeline settlement may lead to loosening of pipe joints, cracking of welds, or overall displacement, which can then cause accidents such as leakage of heating media and pipe bursts, affecting residents' lives and industrial production.

[0003] Currently, the most common method for settlement detection is to monitor settlement by measuring changes in ground elevation using a precision level. This method relies on optical principles, establishing benchmark points and observation points, and periodically measuring the elevation difference to calculate settlement. For example, in some engineering projects, construction workers set up multiple leveling points along the pipeline route and use a precision level for periodic measurements. The advantage of this method is its relatively simple equipment and low cost, but it has significant drawbacks. First, this method is highly dependent on manual operation and is significantly affected by human error. The skill level of the surveyors, weather conditions (such as fog or rain), and instrument calibration can all introduce errors, leading to unstable measurement accuracy. Second, observation points are usually set on the ground, while heating pipelines are often buried in trenches 1-2 meters underground, making it difficult to directly measure the settlement beneath the pipeline. Ground settlement and settlement beneath the pipeline are not completely synchronized, especially in cases of uneven settlement, where ground data cannot accurately reflect the stress on the pipeline. This can lead to monitoring blind spots and delays in detecting potential hazards.

[0004] In addition, other existing settlement monitoring methods include the use of inclinometers, strain gauges, or GPS positioning systems, but these methods also have limitations. Inclinometers mainly measure the tilt angle and cannot directly quantify the settlement; strain gauges need to be embedded inside the pipe, which is complex to install and may affect the pipe structure; GPS systems are suitable for large-scale monitoring, but their accuracy is insufficient to reach the millimeter level, and their signal is weak in underground environments.

[0005] In general, existing settlement monitoring technologies suffer from low measurement accuracy, heavy reliance on manual labor, inability to monitor settlement beneath pipelines, and poor real-time performance. These shortcomings are particularly pronounced in heating pipeline projects, as heating pipelines are typically laid over long distances, traversing multiple geological sections, requiring multi-point, continuous monitoring to create a comprehensive settlement distribution map. To address these issues, this invention proposes a laser ranging-based settlement matrix monitoring device for heating pipelines. By installing monitors on both sides and in the middle of the pipeline, a matrix observation network is formed, enabling accurate monitoring of settlement beneath the pipeline, avoiding human error, and achieving automated early warning. The innovation of this device lies in combining laser ranging with a compaction spring mechanism to form a dynamic measurement system, and generating a settlement surface through matrix analysis, thereby improving the comprehensiveness and reliability of monitoring. Utility Model Content

[0006] The main objective of this invention is to provide a laser ranging-based settling matrix monitoring device for heating pipelines, so as to effectively solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a laser ranging-based heating pipeline settlement matrix monitoring device, comprising a housing, a cover, a measuring mechanism, a settlement observation chamber, a motion mechanism, a control module, a communication module, and a host computer; the housing is a long rectangular housing with a cover on the upper side, and the housing and the cover are fixedly connected on the side by bolts; the motion mechanism is located on the lower side of the cover and includes two parallel slide rails fixed to the lower side of the cover, each slide rail having a slide seat mounted on it, and a fixing plate fixed to the bottom of the two slide seats, with a power device mounted on the fixing plate; the measuring mechanism includes a laser ranging module fixed to the lower side of the fixing plate of the motion mechanism; the control module and the communication module are also fixed to the lower side of the fixing plate; the settlement observation chamber is located at the bottom of the housing.

[0008] Preferably, the bottom surface of the box is provided with multiple rectangular openings at intervals according to the measurement needs. Each rectangular opening is provided with a settlement observation chamber that protrudes from the bottom surface of the box. A compression spring is fixed on each side of the top surface of the settlement observation chamber. The upper end of the compression spring is fixed to the box cover. The components of the motion mechanism are all located between the two compression springs and do not contact each other.

[0009] Preferably, the laser ranging module is at a certain vertical distance from the settlement observation chamber to ensure that the laser ranging module can measure the distance from the top surface of the settlement observation chamber to the laser ranging module.

[0010] Preferably, the power unit includes a drive motor mounted on a fixed plate, with a driving rubber wheel mounted on the shaft of the drive motor. The driving rubber wheel is in close contact with the inner side of one of the two slide rails, and a driven rubber wheel is mounted on the inner side of the other slide rail. The shaft of the driven rubber wheel is bolted to a groove in the fixed plate. A battery is also mounted on the fixed plate to power the drive motor. By adjusting the position of the driven rubber wheel shaft, the friction between the driving rubber wheel and the side of the slide rail can be ensured to be sufficient so that when the drive motor rotates, the driving rubber wheel drives the fixed plate and the laser ranging module to move along the slide rail.

[0011] Preferably, the data on the height changes of multiple settlement observation chambers measured by the laser ranging module are stored in the control module.

[0012] Preferably, the control module integrates A / D conversion and data processing functions, can calculate the distance change rate, and set a threshold. If the threshold is exceeded, an alarm signal is generated and sent to the host computer set up near the heating pipeline via a communication module (supporting GPRS or LoRa). At the same time, the control module can control the drive motor to run at timed intervals.

[0013] Preferably, the box body is provided with multiple support legs, which are deeply buried in the hard soil layer on the side of the measuring pipe, and the settlement observation chamber is buried in the soft soil layer and compressed by a compression spring to measure the ground settlement; three detection devices are buried on both sides and in the middle of the two pipes of the heating pipeline.

[0014] Preferably, the analysis software of the host computer runs on a PC or cloud server and includes data acquisition, surface modeling and visualization modules; the software uses MATLAB or Python algorithms to generate settlement surfaces and uses interpolation methods to convert matrix point data into three-dimensional models, which facilitates engineers to analyze settlement trends.

[0015] The beneficial effects of this invention are: 1. Accurate monitoring of settlement beneath pipelines, avoiding blind spots in ground measurements; 2. Automated operation, reducing human error; 3. Matrix monitoring, providing multi-point data for surface analysis; 4. Real-time alarm, improving response speed; 5. Simple structure, low cost, easy installation and maintenance. Compared to existing technologies, this device improves monitoring accuracy and reliability, and is suitable for various heating projects. Attached Figure Description

[0016] Appendix Figure 1 This is a side view of the structure of this utility model.

[0017] Appendix Figure 2 For the appendix Figure 1 Sectional view of AA.

[0018] Appendix Figure 3 This is a three-dimensional structural diagram of the present invention.

[0019] Appendix Figure 4 This is a three-dimensional structural diagram of the box cover of this utility model.

[0020] Appendix Figure 5 This is a schematic diagram of the internal three-dimensional structure of the box body of this utility model.

[0021] Appendix Figure 6 This is a schematic diagram of the installation structure of this utility model.

[0022] Appendix Figure 1 —In section 6, there are: 1. Box body; 2. Box cover; 3. Bolt; 4. Support leg; 5. Settlement observation chamber; 6. Compression spring; 7. Slide rail; 8. Slide seat; 9. Laser ranging module; 10. Control module; 11. Communication module; 12. Slide groove; 13. Battery; 14. Fixing plate; 15. Drive motor; 16. Active rubber wheel; 17. Driven rubber wheel; 18. Driven rubber wheel shaft; 19. Soft soil layer; 20. Hard soil layer; and 21. Pipeline. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] Appendix Figure 1 As shown in Figure 6, a laser ranging-based heating pipeline settlement matrix monitoring device includes a housing 1, a cover 2, a measuring mechanism, a settlement observation chamber 5, a motion mechanism, a control module, a communication module, and a host computer. The housing 1 is a long rectangular housing with a cover 2 on the upper side. The housing 1 and the cover 2 are fixedly connected on the side by bolts 3. The motion mechanism is located on the lower side of the cover 2 and includes two parallel slide rails 7 fixed to the lower side of the cover. Each slide rail 7 is fitted with a slide block 8. A fixing plate 14 is fixed on the bottom surface of the two slide blocks 8, and a power device is installed on the fixing plate 14. The measuring mechanism includes a laser ranging module 9, which is fixed to the lower side of the fixing plate 14 of the motion mechanism. The control module 10 and the communication module 11 are also fixed to the lower side of the fixing plate 14. The settlement observation chamber 5 is located at the bottom of the housing.

[0025] The bottom surface of the box 1 is provided with multiple rectangular openings at intervals according to the measurement needs. Each rectangular opening is provided with a settlement observation chamber 5 protruding from the bottom surface of the box 1. A compression spring 6 is fixed on each side of the top surface of the settlement observation chamber 5. The upper end of the compression spring 6 is fixed on the box cover 2. The components of the motion mechanism are all located between the two compression springs and do not contact each other.

[0026] The laser ranging module 9 and the settlement observation chamber 5 are at a certain distance in the vertical direction, ensuring that the laser ranging module 9 can measure the distance from the top surface of the settlement observation chamber 5 to the laser ranging module 9.

[0027] The power unit includes a drive motor 15 mounted on a fixed plate 14. A drive roller 16 is mounted on the shaft of the drive motor 15. The drive roller 16 is in close contact with the inner side of one of the two slide rails. A driven roller 17 is mounted on the inner side of the other slide rail. The driven roller shaft 18 is bolted to a groove 12 opened in the fixed plate 14. A battery 13 is also mounted on the fixed plate 14 to supply power to the drive motor 15. By adjusting the position of the driven roller shaft 18, the friction between the drive roller 16 and the side of the slide rail can be ensured to be sufficient so that when the drive motor 15 rotates, the drive roller 16 drives the fixed plate and the laser ranging module 9 to move along the slide rail 7.

[0028] The data on the height changes of multiple settlement observation chambers 5 measured by the laser ranging module 9 are stored in the control module 10.

[0029] The control module integrates A / D conversion and data processing functions, can calculate the distance change rate, and set a threshold. If the threshold is exceeded, an alarm signal is generated and sent to the host computer set up near the heating pipeline via the communication module (supporting GPRS or LoRa). At the same time, the control module can control the drive motor 15 to run at timed intervals.

[0030] The box 1 is equipped with multiple support legs 4, which are deeply buried in the hard soil layer 20 on the side of the measuring pipe 21. The settlement observation chamber 5 is buried in the soft soil layer 19 and is pressed by the compression spring 6 to measure the ground settlement. Three detection devices are buried on both sides and in the middle of the two pipes of the heating pipeline.

[0031] The host computer's analysis software runs on a PC or cloud server and includes modules for data acquisition, surface modeling, and visualization. The software uses MATLAB or Python algorithms to generate settlement surfaces and converts matrix point data into a three-dimensional model through interpolation methods, making it easier for engineers to analyze settlement trends.

[0032] During use, three detection devices are buried on both sides and in the middle of the heating pipeline to form an inspection matrix. The data is uploaded to the host computer, and settlement changes can be detected in a timely manner and measures can be taken promptly.

[0033] Beneficial effects: 1. Accurately monitors settlement beneath pipelines, avoiding blind spots in ground measurements; 2. Automated operation reduces human error; 3. Matrix monitoring provides multi-point data for surface analysis; 4. Real-time alarms improve response speed; 5. Simple structure, low cost, and easy installation and maintenance. Compared to existing technologies, this device improves monitoring accuracy and reliability, and is suitable for various heating projects.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A laser ranging-based settlement matrix monitoring device for heating pipelines, characterized in that: It includes a housing, a cover, a measuring mechanism, a settlement observation chamber, a motion mechanism, a control module, a communication module, and a host computer. The housing is a long rectangular housing with a cover on the top, and the housing and cover are bolted together on the side. The motion mechanism is located on the lower side of the cover and includes two parallel slide rails fixed to the lower side of the cover. Each slide rail has a slide seat mounted on it, and a fixing plate is fixed to the bottom of the two slide seats. A power device is mounted on the fixing plate. The measuring mechanism includes a laser ranging module, which is fixed to the lower side of the fixing plate of the motion mechanism. The control module and the communication module are also fixed to the lower side of the fixing plate. The settlement observation chamber is located at the bottom of the housing. 2.The heat pipeline settlement matrix monitoring device based on laser ranging according to claim 1, characterized in that: The bottom surface of the box is provided with multiple rectangular openings at intervals according to measurement needs. Each rectangular opening contains a settlement observation chamber that protrudes from the bottom surface of the box. A compression spring is fixed on each side of the top surface of the settlement observation chamber. The upper end of the compression spring is fixed to the box cover. The components of the motion mechanism are all located between the two compression springs and do not contact each other. 3.The heat pipeline settlement matrix monitoring device based on laser ranging according to claim 1, characterized in that: The laser ranging module is at a certain vertical distance from the settlement observation chamber to ensure that the laser ranging module can measure the distance from the top surface of the settlement observation chamber to the laser ranging module.

4. The heat pipe settlement matrix monitoring device based on laser ranging according to claim 1, characterized in that: The power unit includes a drive motor mounted on a fixed plate. A driving rubber wheel is mounted on the shaft of the drive motor, and the driving rubber wheel is in close contact with the inner side of one of the two slide rails. A driven rubber wheel is mounted on the inner side of the other slide rail. The shaft of the driven rubber wheel is bolted into a groove on the fixed plate. A battery is also mounted on the fixed plate to power the drive motor. By adjusting the position of the driven rubber wheel shaft, the friction between the driving rubber wheel and the slide rail side can be ensured to be sufficient so that when the drive motor rotates, the driving rubber wheel drives the fixed plate and the laser ranging module to move along the slide rail.

5. The heat pipe settlement matrix monitoring device based on laser ranging according to claim 1, characterized in that: The data on the height changes of multiple settlement observation chambers measured by the laser ranging module are stored in the control module. 6.The heat pipeline settlement matrix monitoring device based on laser ranging according to claim 1, characterized in that: The control module integrates A / D conversion and data processing functions, can calculate the distance change rate, and set a threshold. If the threshold is exceeded, an alarm signal is generated and sent to the host computer set up near the heating pipeline via a communication module that supports GPRS or LoRa. At the same time, the control module can control the drive motor to run at timed intervals. 7.The heat pipeline settlement matrix monitoring device based on laser ranging according to claim 1, characterized in that: The box is equipped with multiple support legs, which are deeply buried in the hard soil layer on the side of the measuring pipe. The settlement observation chamber is buried in the soft soil layer and is compressed by a compression spring to measure ground settlement. Three detection devices are buried on both sides and in the middle of the two pipes of the heating pipeline. 8.The heat pipeline settlement matrix monitoring device based on laser ranging according to claim 1, characterized in that: The host computer's analysis software runs on a PC or cloud server and includes modules for data acquisition, surface modeling, and visualization. The software uses MATLAB or Python algorithms to generate settlement surfaces and converts matrix point data into a three-dimensional model through interpolation methods, making it easier for engineers to analyze settlement trends.

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