Blockage monitoring method and device for pumped concrete delivery pipe

Abstract

The application relates to the technical field of building construction, and discloses a method and device for monitoring the blockage of a pumped concrete conveying pipe, aiming to solve the problem of poor accuracy of the method for monitoring the blockage of the pumped concrete conveying pipe, and mainly comprising the following steps: determining the pumping condition of the pumped concrete conveying pipe; simulating the pumping condition by using simulation analysis software, determining the easy-to-block pipe points of the pumped concrete conveying pipe and the corresponding pipe blockage critical strain values of the easy-to-block pipe points; respectively acquiring the strain data and temperature data of the easy-to-block pipe points, correcting the strain data according to the temperature data, and obtaining the corresponding strain values of the easy-to-block pipe points; judging the size relationship between the corresponding strain values of the easy-to-block pipe points and the pipe blockage critical strain values, and if the strain value corresponding to an easy-to-block pipe point is greater than or equal to the pipe blockage critical strain value corresponding to the easy-to-block pipe point, it is determined that the pumped concrete conveying pipe is blocked at the easy-to-block pipe point. The application improves the accuracy of the blockage monitoring and is suitable for super-high pumped concrete conveying pipes.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and in particular to a method and device for monitoring the blockage of a pumping concrete delivery pipe. Background Art

[0002] Pumped concrete is the process of transporting and placing concrete mixtures along delivery pipes using concrete pumps or pump trucks. Pumped concrete is an efficient method of transporting concrete mixtures, offering high speed and minimal labor. It is particularly suitable for transporting and placing large volumes of concrete and high-rise building concrete.

[0003] During the pouring process of pumped concrete, blockage of the delivery pipe often occurs. In order to determine the location of the blockage, the current method is usually judged manually by technicians, such as visual observation, knocking and listening, and section-by-section inspection. This method is not only time-consuming and labor-intensive, but also relies on the experience of technicians and has large errors in manual judgment.

[0004] Application publication number CN106017401A discloses a monitoring device and monitoring and evaluation method for blockage of ultra-high pumped concrete delivery pipes. Its main technical solution is to monitor the stress and strain values ​​of each key node and compare the stress and strain values ​​with a preset threshold value to determine whether each key node has a blockage risk, and to determine the location of the blockage by indicating the location with a blockage risk. However, the above solution has at least the following problems: (1) The manual setting of key nodes still relies on the work experience of technicians. Improper setting of key nodes may cause blockage of non-key nodes, thereby resulting in inaccurate judgment results; (2) In actual application, due to different pumping heights, slumps and pump pipe layouts, the stress and strain values ​​of each key node when conveying concrete are also different. Setting the same threshold value for all key nodes will result in inaccurate judgment results; (3) Different temperatures will also cause differences in stress and strain values. The stress and strain values ​​detected by the stress and strain sensor cannot accurately reflect the stress and strain values ​​caused by concrete pressure, thereby resulting in inaccurate judgment results. Summary of the Invention

[0005] The present invention aims to solve the problem of poor accuracy in existing methods for monitoring blockage of a pumping concrete delivery pipe, and proposes a method and device for monitoring blockage of a pumping concrete delivery pipe.

[0006] The technical solution adopted by the present invention to solve the above technical problems is:

[0007] In one aspect, a method for monitoring blockage of a pumped concrete delivery pipe is provided, comprising the following steps:

[0008] Determining the pumping conditions of the pumped concrete delivery pipe, wherein the pumping conditions include at least: concrete mix ratio, pumping elevation, slump, pump pipe layout, and friction on the inner surface of the pump pipe;

[0009] simulate the pumping condition by using simulation analysis software to determine the easy-to-block point of the pumping concrete conveying pipe and the corresponding blocking critical strain value thereof;

[0010] acquire strain data and temperature data of each easy-to-block point respectively, correct the strain data according to the temperature data to obtain the strain value corresponding to each easy-to-block point;

[0011] determine the size relationship between the strain value corresponding to each easy-to-block point and the blocking critical strain value, if the strain value corresponding to a certain easy-to-block point is greater than or equal to the blocking critical strain value corresponding to the easy-to-block point, it is determined that the pumping concrete conveying pipe is blocked at the easy-to-block point.

[0012] Further, the blocking critical strain value is the minimum value among the maximum pumping strain value corresponding to the easy-to-block point, the maximum pipe pressure strain value and the blocking critical pressure strain value.

[0013] Further, the method further comprises:

[0014] When it is determined that the pumping concrete conveying pipe is blocked at the easy-to-block point, a blocking alarm signal is sent and the position of the easy-to-block point where the blocking exists is indicated.

[0015] Further, the method specifically comprises:

[0016] A blocking detection module is arranged at the corresponding position of each easy-to-block point, and the blocking detection module at least comprises a power supply unit, a strain sensor, a temperature sensor, a human-computer interaction unit, a control unit and a light alarm unit;

[0017] The strain data of the corresponding easy-to-block point is acquired by the strain sensor, and the temperature data of the corresponding easy-to-block point is acquired by the temperature sensor;

[0018] The blocking critical strain value of the corresponding easy-to-block point is set by the human-computer interaction unit;

[0019] The strain value of the corresponding easy-to-block point is obtained by correcting the strain data according to the temperature data by the control unit, and the size relationship between the strain value and the blocking critical strain value of the corresponding easy-to-block point is determined, if the strain value is greater than or equal to the blocking critical strain value, it is determined that the corresponding easy-to-block point is blocked;

[0020] When it is determined that the easy-to-block point is blocked, a blocking alarm signal is sent by the corresponding light alarm unit, and the position of the easy-to-block point where the blocking exists is indicated by the position of the light alarm unit sending the blocking alarm signal.

[0021] Further, the human-computer interaction unit is an adjusting knob.

[0022] Furthermore, the method further comprises:

[0023] When the light alarm unit sends a blockage alarm signal, the timing starts. If the strain value of the corresponding blockage-prone point is less than the critical strain value of the blockage or the duration reaches the preset duration, the light alarm unit is controlled to stop the blockage alarm.

[0024] Furthermore, the power supply unit is a battery, and the method further includes:

[0025] Real-time detection of battery power. If the battery power is lower than the preset power, a low-battery alarm signal will be issued through the light alarm unit.

[0026] Furthermore, the simulation analysis software is discrete element simulation analysis software, finite element simulation analysis software or computational fluid dynamics simulation analysis software.

[0027] In another aspect, a blockage monitoring device for a concrete delivery pipe is provided, comprising: a determination module, a simulation analysis module, and at least one blockage detection module;

[0028] The determination module is used to determine the pumping conditions of the pumped concrete delivery pipe, wherein the pumping conditions include at least: concrete mix ratio, pumping elevation, slump, pump pipe layout, and friction force on the inner surface of the pump pipe;

[0029] The simulation analysis module is used to simulate the pumping working condition using simulation analysis software to determine the easy-to-block points of the pumped concrete delivery pipe and the corresponding critical strain values ​​for blockage;

[0030] The blockage detection module is correspondingly arranged at the pipe-blocking-prone point, and is used to obtain strain data and temperature data of the corresponding pipe-blocking-prone point, correct the strain data according to the temperature data to obtain the strain value of the corresponding pipe-blocking-prone point; and determine the relationship between the strain value of the corresponding pipe-blocking-prone point and the critical strain value of the pipe blockage. If the strain value is greater than or equal to the critical strain value of the pipe blockage, it is determined that the corresponding pipe-blocking-prone point is blocked.

[0031] Furthermore, the blockage detection module comprises at least: a power supply unit, a strain sensor, a temperature sensor, a human-computer interaction unit, a control unit and a light alarm unit;

[0032] The strain sensor is used to obtain strain data corresponding to the point prone to pipe blockage;

[0033] The temperature sensor is used to obtain temperature data corresponding to the point where the pipe is prone to blockage;

[0034] The human-computer interaction unit is used to set a pipe blocking critical strain value corresponding to a pipe blocking point;

[0035] The control unit is configured to correct the strain data according to the temperature data to obtain a strain value corresponding to a point prone to pipe blockage, and determine a relationship between the strain value corresponding to the point prone to pipe blockage and a critical strain value for pipe blockage; if the strain value is greater than or equal to the critical strain value for pipe blockage, then it is determined that the point prone to pipe blockage is blocked;

[0036] The light alarm unit is used to send out a blockage alarm signal when it is determined that the corresponding easily blocked pipe point is blocked, and the position of the easily blocked pipe point is indicated by the position of the light alarm unit that sends the blockage alarm signal.

[0037] The beneficial effects of the present invention are as follows: the method and device for monitoring blockage of a pumped concrete delivery pipe of the present invention accurately determine the easily blocked points of the pumped concrete delivery pipe by performing simulation analysis on the pumped concrete delivery pipe, and determine the critical blockage strain value corresponding to each easily blocked point, and perform blockage monitoring on each easily blocked point based on the corresponding critical blockage strain value, thereby improving the accuracy of blockage monitoring. In addition, the present invention corrects the strain according to the temperature, avoiding the influence of temperature on stress monitoring, and further improving the accuracy of blockage monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 Schematic diagram of the flow of a method for monitoring blockage of a pumped concrete delivery pipe according to an embodiment of the present invention;

[0039] Figure 2 This is a schematic diagram of the installation structure of the blockage detection module according to an embodiment of the present invention;

[0040] Figure 3 This is a schematic diagram of the principle structure of the congestion detection module according to an embodiment of the present invention;

[0041] Figure 4 This is a schematic structural diagram of a blockage monitoring device for a pumped concrete delivery pipe according to an embodiment of the present invention; DETAILED DESCRIPTION

[0042] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0043] The present invention aims to provide a method and device for monitoring blockage of a pumped concrete delivery pipe to improve the accuracy of blockage monitoring. The main technical scheme includes: determining the pumping conditions of the pumped concrete delivery pipe, wherein the pumping conditions include at least: concrete mix ratio, pumping elevation, slump, pump pipe layout and friction force on the inner surface of the pump pipe; simulating the pumping conditions using simulation analysis software to determine the easily blocked points of the pumped concrete delivery pipe and their corresponding critical strain values ​​for blockage; respectively obtaining strain data and temperature data of each easily blocked point, correcting the strain data according to the temperature data, and obtaining the strain value corresponding to each easily blocked point; judging the relationship between the strain value corresponding to each easily blocked point and the critical strain value for blockage, and if the strain value corresponding to a certain easily blocked point is greater than or equal to the critical strain value for blockage corresponding to the easily blocked point, then determining that the pumped concrete delivery pipe is blocked at the easily blocked point.

[0044] Specifically, the present invention establishes a simulation analysis model for a pumped concrete delivery pipe. Based on the concrete mix ratio, pumping elevation, slump, pump pipe layout, and the friction force on the inner surface of the pump pipe, the pumping conditions of the delivery pipe during concrete delivery are accurately simulated. The simulation analysis then determines the prone-to-blocking points of the pumped concrete delivery pipe and their corresponding critical strain values ​​for blockage. A blockage detection module is then installed at each prone-to-blocking point. Each blockage detection module obtains strain data and temperature data for the corresponding prone-to-blocking point, and corrects the strain data based on the temperature data to obtain the strain value caused by concrete pressure. If the strain value is greater than or equal to the corresponding critical strain value for blockage, the corresponding prone-to-blocking point is determined to be blocked. Otherwise, the corresponding prone-to-blocking point is determined to be unblocked. Furthermore, the blockage detection module of the present invention also includes a light alarm unit. Upon determining that the corresponding prone-to-blocking point is blocked, the corresponding light alarm unit is controlled to issue a blockage alarm. Since the light alarm unit is also installed at the prone-to-blocking point, technicians can quickly determine the location of the blockage based on the location of the light alarm unit that issues the blockage alarm.

[0045] Example

[0046] The method for monitoring the blockage of a pumped concrete delivery pipe according to an embodiment of the present invention is as follows: Figure 1 As shown, the following steps are included:

[0047] Step 1: Determine the pumping conditions of the pumped concrete delivery pipe, wherein the pumping conditions include at least: concrete mix ratio, pumping elevation, slump, pump pipe layout, and friction force on the inner surface of the pump pipe;

[0048] Specifically, this embodiment first needs to determine the pumping conditions of the pumped concrete delivery pipe to be monitored in order to realize the simulation analysis of the pumped concrete, wherein the concrete mix ratio refers to the proportional relationship between the various components in the pumped concrete, and the slump is used to quantify the workability of the concrete. The pumped concrete delivery pipe in this embodiment can be an ultra-high pumped concrete delivery pipe, that is, the pumping elevation exceeds 200 meters.

[0049] Step 2: Using simulation analysis software to simulate the pumping working condition, determine the easy-to-block points of the pumped concrete delivery pipe and the corresponding critical strain value of the blocking pipe;

[0050] In this embodiment, the simulation analysis software may be discrete element (DEM) simulation analysis software, finite element (FEA) simulation analysis software, or computational fluid dynamics (CFD) simulation analysis software. Specifically, in this embodiment, the simulation analysis software first establishes an analytical model of the pumped concrete delivery pipe based on the pump pipe layout, then assigns relevant parameters to the pipe based on the pumping elevation and the friction force on the inner surface of the pump pipe, and then simulates the pumping of concrete based on the concrete mix ratio and slump. The simulation analysis then determines the easily blocked points of the pumped concrete delivery pipe and their corresponding critical strain values ​​for blockage.

[0051] In order to avoid damage to the power pump and bursting of the pump pipe, the critical pipe blocking strain value corresponding to the easily blocked pipe point in this embodiment is the minimum value among the maximum pump pressure strain value of the corresponding easily blocked pipe point, the maximum pressure strain value of the pipeline, and the critical pipe blocking pressure strain value.

[0052] Step 3: respectively obtain the strain data and temperature data of each pipe-blocking-prone point, and correct the strain data according to the temperature data to obtain the strain value corresponding to each pipe-blocking-prone point;

[0053] Understandably, because temperature can cause variations in strain values, the strain values ​​detected by the strain sensor cannot accurately reflect the strain values ​​caused by concrete pressure, leading to inaccurate detection results. To avoid this problem, this embodiment corrects the strain data based on temperature data to obtain the strain values ​​caused by concrete pressure in the pump pipe corresponding to the blockage-prone points, further improving the accuracy of blockage monitoring.

[0054] Step 4: Determine the relationship between the strain value corresponding to each easily blocked pipe point and the critical strain value of the pipe blocking. If the strain value corresponding to a certain easily blocked pipe point is greater than or equal to the critical strain value of the pipe blocking corresponding to the easily blocked pipe point, it is determined that the pumped concrete delivery pipe is blocked at the easily blocked pipe point.

[0055] In this embodiment, after determining the easy-to-block point of the pumped concrete delivery pipe and its corresponding critical strain value for blocking, Figure 2As shown, a blockage detection module is respectively provided at the corresponding position of each easily blocked pipe point of the pumped concrete delivery pipe, and the blockage detection module is used to monitor whether the corresponding easily blocked pipe point is blocked.

[0056] like Figure 3 As shown, the blockage detection module described in this embodiment includes: a power supply unit, a strain sensor, a temperature sensor, a human-computer interaction unit, a control unit, and a light alarm unit. In each blockage detection module, the power supply unit supplies power to the module, the strain sensor acquires strain data for the corresponding easily blocked pipe point, and the temperature sensor acquires temperature data for the corresponding easily blocked pipe point. The human-computer interaction unit sets a critical blockage strain value for the corresponding easily blocked pipe point. The control unit corrects the strain data based on the temperature data to obtain the strain value for the corresponding easily blocked pipe point, and determines the relationship between the strain value for the corresponding easily blocked pipe point and the critical blockage strain value. If the strain value is greater than or equal to the critical blockage strain value, the corresponding easily blocked pipe point is determined to be blocked. When a blockage is determined to be present at the easily blocked pipe point, a blockage alarm signal is issued by the corresponding light alarm unit, and the location of the light alarm unit that issued the blockage alarm signal indicates the location of the easily blocked pipe point.

[0057] In this embodiment, the human-computer interaction unit can be an adjustment knob. After the technician sets the blockage detection module at the corresponding easily blocked pipe point, he can use the adjustment knob to set the pipe blocking critical strain value to the pipe blocking critical strain value corresponding to the current easily blocked pipe point.

[0058] It can be understood that when the congestion detection module detects a congestion, the light alarm unit in the congestion detection module sends a congestion alarm signal. Since the congestion detection module and the easily blocked pipe point are set one-to-one, the user can quickly determine the location of the easily blocked pipe point based on the position of the light alarm unit that sends the congestion alarm signal.

[0059] In this embodiment, the light alarm unit can emit a blockage alarm signal by flashing a red light. Typically, if a pipe blockage has occurred, all points near the pump end of the blockage point that may exceed the strain value will flash red. A technician can first check the pump tubing farther from the alarm to quickly identify the blockage. If a blockage occurs, the technician can take a photo to record the color and location of the warning light.

[0060] To balance the necessary observation and recording time with energy conservation, this embodiment begins counting down when the light alarm unit issues a blockage alarm signal. If the strain value at the corresponding blockage-prone point falls below the critical strain value, or if the duration reaches a preset time, the light alarm unit stops the blockage alarm. If the blockage persists for a long time without a change in the strain value, and no timely photographs are taken, technicians can retrieve on-site surveillance footage or dedicated video recordings to observe the warning light and determine the location of the blockage. The preset time can be set based on actual conditions, for example, 10 minutes.

[0061] To reduce wiring difficulties, the power supply unit in the congestion detection module can be a battery. This embodiment also detects the battery level in real time. If the battery level is lower than a preset level, a low-battery alarm signal is issued via a light alarm unit to remind technicians to replace the battery, thereby ensuring the normal operation of the congestion detection module. The low-battery alarm signal issued by the light alarm unit can be a flashing yellow light.

[0062] To summarize, this embodiment accurately determines the points prone to blockage in the pumped concrete delivery pipe by performing simulation analysis on the pumped concrete delivery pipe, and determines the critical strain value of blockage corresponding to each point prone to blockage. Based on the corresponding critical strain value of blockage, blockage monitoring is performed on each point prone to blockage, thereby improving the accuracy of blockage monitoring. In addition, this embodiment also corrects the strain according to temperature, avoiding the influence of temperature on stress monitoring, and further improving the accuracy of blockage monitoring.

[0063] Based on the above technical solution, this embodiment also proposes a blockage monitoring device for a pumped concrete delivery pipe, such as Figure 4 As shown, it includes: a determination module, a simulation analysis module and at least one congestion detection module;

[0064] The determination module is used to determine the pumping conditions of the pumped concrete delivery pipe, wherein the pumping conditions include at least: concrete mix ratio, pumping elevation, slump, pump pipe layout, and friction force on the inner surface of the pump pipe;

[0065] The simulation analysis module is used to simulate the pumping working condition using simulation analysis software to determine the easy-to-block points of the pumped concrete delivery pipe and the corresponding critical strain values ​​for blockage;

[0066] The blockage detection module is correspondingly arranged at the pipe-blocking-prone point, and is used to obtain strain data and temperature data of the corresponding pipe-blocking-prone point, correct the strain data according to the temperature data to obtain the strain value of the corresponding pipe-blocking-prone point; and determine the relationship between the strain value of the corresponding pipe-blocking-prone point and the critical strain value of the pipe blockage. If the strain value is greater than or equal to the critical strain value of the pipe blockage, it is determined that the corresponding pipe-blocking-prone point is blocked.

[0067] It can be understood that since the blockage monitoring device for the pumping concrete delivery pipe described in the embodiment of the present invention is a device for implementing the blockage monitoring method for the pumping concrete delivery pipe described in the embodiment, for the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method.

Claims

1. A method for monitoring blockage of a pumped concrete delivery pipe, characterized in that: The following steps are involved: Determining the pumping conditions of the pumped concrete delivery pipe, wherein the pumping conditions include at least: concrete mix ratio, pumping elevation, slump, pump pipe layout, and friction on the inner surface of the pump pipe; The pumping working condition is simulated using simulation analysis software to determine the easily blocked points of the pumped concrete delivery pipe and the corresponding critical strain value of the blocked pipe; the critical strain value of the blocked pipe is the minimum value among the maximum pump pressure strain value of the corresponding easily blocked point, the maximum pressure strain value of the pipeline, and the critical pressure strain value of the blocked pipe; Obtaining strain data and temperature data of each pipe-blocking-prone point respectively, and correcting the strain data according to the temperature data to obtain the strain value corresponding to each pipe-blocking-prone point; The relationship between the strain value corresponding to each easily blocked pipe point and the critical strain value of the pipe blocking is determined. If the strain value corresponding to a certain easily blocked pipe point is greater than or equal to the critical strain value of the pipe blocking corresponding to the easily blocked pipe point, it is determined that the pumped concrete delivery pipe is blocked at the easily blocked pipe point.

2. The method for monitoring blockage of a pumped concrete delivery pipe according to claim 1, wherein: The method further includes: When it is determined that the pumped concrete delivery pipe is blocked at a pipe-blocking point, a blockage alarm signal is issued and the position of the pipe-blocking point is indicated.

3. The method for monitoring blockage of a pumped concrete delivery pipe according to claim 2, wherein: The method specifically includes: A blockage detection module is set at the corresponding position of each easily blocked pipe point. The blockage detection module includes at least: a power supply unit, a strain sensor, a temperature sensor, a human-computer interaction unit, a control unit and a light alarm unit; The strain data of the corresponding pipe-blocking points are obtained through the strain sensor, and the temperature data of the corresponding pipe-blocking points are obtained through the temperature sensor; Set the critical strain value of pipe blocking corresponding to the pipe blocking point through the human-computer interaction unit; The control unit corrects the strain data according to the temperature data to obtain a strain value corresponding to the pipe-blocking-prone point, and determines the relationship between the strain value of the corresponding pipe-blocking-prone point and the critical strain value of the pipe-blocking. If the strain value is greater than or equal to the critical strain value of the pipe-blocking, it is determined that the corresponding pipe-blocking-prone point is blocked. When it is determined that a pipe point prone to blockage is blocked, a blockage alarm signal is sent out through the corresponding light alarm unit, and the position of the light alarm unit that sends the blockage alarm signal indicates the position of the pipe point prone to blockage.

4. The method for monitoring blockage of a pumped concrete delivery pipe according to claim 3, wherein: The human-computer interaction unit is an adjustment knob.

5. The method for monitoring blockage of a pumped concrete delivery pipe according to claim 3, wherein: The method further includes: When the light alarm unit sends a blockage alarm signal, the timing starts. If the strain value of the corresponding blockage-prone point is less than the critical strain value of the blockage or the duration reaches the preset duration, the light alarm unit is controlled to stop the blockage alarm.

6. The method for monitoring blockage of a pumped concrete delivery pipe according to claim 3, wherein: The power supply unit is a battery, and the method further includes: Real-time detection of battery power. If the battery power is lower than the preset power, a low-battery alarm signal will be issued through the light alarm unit.

7. The method for monitoring blockage of a pumped concrete delivery pipe according to any one of claims 1 to 6, characterized in that: The simulation analysis software is discrete element simulation analysis software, finite element simulation analysis software or computational fluid dynamics simulation analysis software.

8. A device for monitoring the blockage of a pumped concrete delivery pipe, characterized in that: include: a determination module, a simulation analysis module, and at least one congestion detection module; The determination module is used to determine the pumping conditions of the pumped concrete delivery pipe, wherein the pumping conditions include at least: concrete mix ratio, pumping elevation, slump, pump pipe layout, and friction force on the inner surface of the pump pipe; The simulation analysis module is used to simulate the pumping working conditions using simulation analysis software to determine the easily blocked points of the pumped concrete delivery pipe and their corresponding critical blockage strain values; the critical blockage strain value is the minimum value among the maximum pump pressure strain value of the corresponding easily blocked point, the maximum pressure strain value of the pipeline, and the critical blockage pressure strain value; The blockage detection module is correspondingly arranged at the pipe-blocking-prone point, and is used to obtain strain data and temperature data of the corresponding pipe-blocking-prone point, correct the strain data according to the temperature data, and obtain the strain value of the corresponding pipe-blocking-prone point; and determine the relationship between the strain value of the corresponding pipe-blocking-prone point and the critical strain value of the pipe blockage. If the strain value is greater than or equal to the critical strain value of the pipe blockage, it is determined that the corresponding pipe-blocking-prone point is blocked.

9. The blockage monitoring device for a pumped concrete delivery pipe according to claim 8, characterized in that: The blockage detection module at least includes: a power supply unit, a strain sensor, a temperature sensor, a human-computer interaction unit, a control unit and a light alarm unit; The strain sensor is used to obtain strain data corresponding to the point prone to pipe blockage; The temperature sensor is used to obtain temperature data corresponding to the point where the pipe is prone to blockage; The human-computer interaction unit is used to set a pipe blocking critical strain value corresponding to a pipe blocking point; The control unit is configured to correct the strain data according to the temperature data to obtain a strain value corresponding to a point prone to pipe blockage, and determine a relationship between the strain value corresponding to the point prone to pipe blockage and a critical strain value for pipe blockage; if the strain value is greater than or equal to the critical strain value for pipe blockage, then it is determined that the point prone to pipe blockage is blocked; The light alarm unit is used to send out a blockage alarm signal when it is determined that the corresponding easily blocked pipe point is blocked, and the position of the easily blocked pipe point is indicated by the position of the light alarm unit that sends the blockage alarm signal.

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