Garbage pool deformation monitoring system

Abstract

The utility model relates to a garbage pool deformation monitoring system which is characterized in that a magnetic hydrostatic level is used for measuring the sedimentation of a garbage pool, an embedded strain gauge is used for measuring the stress change of the garbage pool, and an inclinometer is used for measuring the inclination of the garbage pool; the acquisition terminal comprises an acquisition instrument and a distributed acquisition base station; the acquisition instrument is respectively connected with the magnetostrictive hydrostatic level and the inclinometer, and the distributed acquisition base station is connected with the embedded strain gauge; the monitoring cloud platform is respectively connected with the acquisition instrument of the acquisition terminal and the distributed acquisition base station, and the monitoring cloud platform is used for receiving measurement data of the magnetic hydrostatic level gauge, the embedded strain gauge and the inclinometer and carrying out deformation early warning on the garbage pool according to the measurement data. The deformation monitoring points can be arranged according to the characteristics of the household garbage storage partitions in the garbage pool, data are monitored in the whole life cycle of operation of the household garbage incineration power plant, and production management is effectively guided to ensure the structural safety of the garbage pool.

Description

Technical Field

[0001] This application relates to the field of waste-to-energy safety technology, and in particular to a waste pit deformation monitoring system. Background Technology

[0002] With the advancement of urbanization and the continuous improvement of residents' living standards, the amount of domestic waste is increasing year by year. The incineration method for treating urban domestic waste has advantages such as good harmlessness, high reduction rate, convenient resource utilization, and small land area.

[0003] The typical characteristics of municipal solid waste in my country are high water content, high organic matter content, and mixed collection. After being transported to the waste incineration power plant, the waste is stored in the waste pit for 5 to 7 days. After a certain period of fermentation and dehydration, the calorific value is significantly improved, thereby reducing the need for auxiliary fuel, increasing power generation, and improving the efficiency of the waste incineration power plant. This process characteristic makes the incineration treatment of municipal solid waste have a certain periodicity. Therefore, after entering the waste incineration power plant, the municipal solid waste is stored in separate areas in the waste pit and then put into the incinerator for incineration according to the fermentation time.

[0004] The waste disposal site employs a cast-in-place reinforced concrete frame-shear wall structure, with approximately one-quarter of the main structure typically underground. Foundation treatment is implemented based on the local geological conditions and soil bearing capacity. When the amount of municipal solid waste generated within the service area of ​​the waste-to-energy incineration plant experiences a sudden surge, exceeding the original design storage capacity, it can significantly impact the waste disposal site's structure and foundation. This can lead to uneven settlement and structural deformation, potentially causing structural failure and posing a serious threat to the site's structural safety and overall operational stability. Furthermore, the fermentation process of municipal solid waste generates leachate and odorous gases, which, due to their complex composition and high concentration of harmful substances, can severely pollute the surrounding air and groundwater in the event of a leak. Moreover, such pollution is difficult to detect and effectively address in a timely manner.

[0005] In existing technologies, deformation monitoring of waste disposal sites mainly employs leveling methods. Firstly, this method only monitors settlement, resulting in a limited scope. Secondly, the placement of settlement observation points is primarily based on the site's structural characteristics and foundation type, meaning the monitoring data cannot directly or indirectly reveal the impact of the zoning of municipal solid waste storage on the site's overall structure, hindering adjustments and management during operation. Thirdly, deformation monitoring is primarily conducted during the construction phase and the first 2-3 years of operation, until a stable rate is reached, resulting in a limited monitoring period. Monitoring deformation changes in the waste disposal site throughout the entire lifecycle of a municipal solid waste incineration power plant will incur continuous and high costs. Furthermore, the waste disposal site is located within the main plant building, surrounded by numerous auxiliary structures, which are divided into many rooms according to functional requirements. The layout of production equipment and process piping within the plant also influences the measurement process. Traditional optical and laser measurement equipment, lacking line-of-sight, requires multiple relocations of measurement base stations, increasing cumulative measurement errors. This necessitates specialized personnel using specialized equipment and calculation software for adjustment to reduce measurement errors, demanding high levels of expertise and specialized equipment. Utility Model Content

[0006] To address the aforementioned technical issues, this application provides a waste pit deformation monitoring system. By monitoring the settlement, tilt, and stress changes of the waste pit, and by arranging the monitoring points according to the characteristics of the domestic waste storage zones within the waste pit, the monitoring data can directly or indirectly reflect the impact of the amount of domestic waste stored in each zone on the waste pit structure.

[0007] Specifically, this application provides a waste pit deformation monitoring system, including:

[0008] The sensing terminal includes a magnetostatic level, an embedded strain gauge, and an inclinometer; the magnetostatic level is used to measure the settlement of the waste pit, the embedded strain gauge is used to measure the stress change of the waste pit, and the inclinometer is used to measure the tilt of the waste pit.

[0009] The data acquisition terminal includes a data acquisition instrument and a distributed data acquisition base station; the data acquisition instrument is connected to the magnetostrictive hydrostatic level and the inclinometer, and the distributed data acquisition base station is connected to the embedded strain gauge.

[0010] The monitoring cloud platform is connected to the data acquisition instrument and the distributed data acquisition base station of the acquisition terminal, respectively. The monitoring cloud platform is used to receive the measurement data of the magnetostrictive hydrostatic level, the embedded strain gauge and the inclinometer, and to provide early warning of deformation of the waste pool based on the measurement data.

[0011] Furthermore, the magnetostrictive hydrostatic level is installed at the four corners of the waste pool and on the column bases every 2-3 columns.

[0012] Furthermore, the liquid storage tanks of each of the magnetostatic level instruments are connected by PU material liquid pipes; the liquid pipes are wrapped with heat-insulating cotton; the liquid storage tanks and the liquid pipes are filled with antifreeze; the output of the magnetostatic level instrument is a digital signal, using RS485 signal output to realize remote automated monitoring, and the power supply and communication between the magnetostatic level instruments at each measuring point adopts a bus mode serial communication.

[0013] Furthermore, the embedded strain gauge is installed in the stress change monitoring area on the first floor of the waste pit, which is a shear wall structure enclosed by frame columns and frame beams.

[0014] Furthermore, three measuring points are vertically arranged in the middle of each stress change monitoring zone. The three measuring points are located at 1 / 4, 1 / 2 and 3 / 4 of the height direction, respectively, and the embedded strain gauge is installed in the center of the horizontal direction.

[0015] Furthermore, the embedded strain gauge is designed using vibrating wire theory and outputs a vibrating wire signal. The power supply and communication of the embedded strain gauge use a four-core shielded cable, and the vibrating wire signal and temperature signal are transmitted in bus mode. The monitoring equipment bus of each measuring point is individually connected to the distributed acquisition base station. The distributed acquisition base station acquires the vibrating wire signal and supports 4-32 channels of vibrating wire signal, while also supporting 485 serial port signal output, GPRS network wireless transmission, and SD card data storage.

[0016] Furthermore, the inclinometer is horizontally installed on the third floor of the waste pool and located on the outer facade of the frame column.

[0017] Furthermore, the output of the inclinometer is a digital signal, using RS485 signal output to achieve remote automated monitoring. The power supply and communication between the inclinometers adopt a bus mode serial communication. The monitoring angle value of the inclinometer is calculated based on the installation height and the horizontal displacement, i.e., θ = arctan(L / H), where L is the horizontal displacement, θ is the monitoring angle value, and H is the installation height.

[0018] Furthermore, the monitoring cloud platform includes a mobile phone or a PC; the data acquisition terminal exports data to the mobile phone or PC; the monitoring cloud platform marks the monitoring location on a map; the monitoring cloud platform is used for alarm settings, database management, and results output.

[0019] Compared with the prior art, this application has the following beneficial effects:

[0020] This application comprises three main parts: an intelligent sensing terminal, an intelligent data acquisition terminal, and a monitoring cloud platform. It monitors the settlement, tilt, and stress changes of the waste collection pit. Monitoring points can be strategically placed based on the characteristics of the waste storage zones within the pit. Monitoring data directly or indirectly reflects the impact of the amount of waste stored in each zone on the pit's structural integrity. All equipment and accessories are a one-time investment, saving costs. The system uses cable connections between devices, eliminating the need for line-of-sight and ensuring strong environmental adaptability. Management personnel can monitor changes in the waste collection pit's structure in real time. It requires minimal expertise, has adjustable alarm thresholds, and the monitoring cloud platform automatically pushes early warning information, exhibiting a high degree of automation. This enables remote, real-time monitoring of the waste collection pit's structural health, preventing structural deformation, damage, and environmental pollution incidents.

[0021] All equipment and accessories in this application are provided as a one-time investment. Except for damage caused by human error or equipment aging, no special personnel are required for maintenance, and no additional costs are incurred. The total cost is equivalent to one-third of that of traditional deformation monitoring. The equipment is connected by communication lines and powered by cables, requiring no line of sight. Adjustments can be made according to the site layout and to avoid the influence of equipment pipelines on the measurement. Stress change parameters are collected automatically at high frequency. The data collection frequency and transmission interval are adjustable according to management needs. The collected data is uploaded to the monitoring cloud platform via wireless network, allowing managers to view the structural changes of the garbage pit in real time. The application requires less expertise and can set deformation alarm thresholds based on structural design parameters and usage management. When the monitored value reaches the alarm threshold, the monitoring cloud platform can issue real-time warnings through SMS, email, and APP push notifications to guide managers in adjusting the storage and stacking of domestic waste in the garbage pit, ensuring the structural health of the garbage pit, preventing structural deformation and damage, and environmental pollution accidents, and ensuring the normal operation of urban infrastructure. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] The structures, proportions, sizes, etc., shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this application. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0024] Figure 1 This is a schematic diagram of the overall structure of the waste pool deformation monitoring system in this application embodiment;

[0025] Figure 2 This is a schematic diagram of the installation of the magnetostatic level and the embedded strain gauge on the first floor of the garbage pit in this application embodiment;

[0026] Figure 3 This is a schematic diagram of the installation of the tilt meter at the top of the garbage pit in this embodiment of the application;

[0027] Figure 4 This is a flowchart of the waste pool deformation monitoring method in the embodiments of this application. Detailed Implementation

[0028] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0029] In the description of this application, it should be understood that the orientations or positional relationships indicated by terms, etc., are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device, element, module, system, platform, or device referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The following description of this application is only to be understood as a description of individual embodiments of the technical solutions of this application. Other embodiments are not reflected in the following description, but this does not mean that this application excludes these other embodiments, nor is the technical solution of this application limited to the specific implementations described below, and the protection scope of this application is not limited to the specific implementations described below. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this application.

[0030] It should be noted that if the terms "first," "second," etc., appear in the specification, claims, and accompanying drawings of this application, such descriptions are only used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a system, product, or device that comprises a series of units, modules, or components is not necessarily limited to those explicitly listed, but may include other components not explicitly listed or inherent to such systems, products, or devices.

[0031] The technical solution of this application will be further described below with reference to the accompanying drawings and specific embodiments.

[0032] In some embodiments, such as Figure 1-3 As shown, this application provides a waste pool deformation monitoring system, specifically including a sensing terminal, a data acquisition terminal, and a monitoring cloud platform.

[0033] The sensing terminals include settlement monitoring, tilt monitoring, and stress change monitoring equipment and accessories. All power supply and communication cables for the sensing terminals are protected by galvanized conduit, with additional conduit sleeves used when passing through floor slabs and expansion joints to prevent damage from impacts and compression during production and maintenance, which could affect normal equipment operation. The communication cables are shielded, offering strong anti-interference capabilities and distortion-free long-distance transmission, effectively preventing data transmission instability caused by interference from power distribution facilities and equipment within the factory.

[0034] Specifically, the sensing terminal includes a magnetostrictive hydrostatic level 1, an embedded strain gauge 2, and an inclinometer 3; the magnetostrictive hydrostatic level 1 is used to measure the settlement of the waste pool, the embedded strain gauge 2 is used to measure the stress change of the waste pool, and the inclinometer 3 is used to measure the tilt of the waste pool.

[0035] The data acquisition instrument 4 is connected to the magnetostrictive hydrostatic level 1 and the inclinometer 3 respectively, and the distributed data acquisition base station 5 is connected to the embedded strain gauge 2.

[0036] The magnetostrictive hydrostatic level 1 is installed at the four corners of the waste pit and on column bases every 2-3 columns, approximately 50cm above the ground. The liquid storage tanks of each magnetostrictive hydrostatic level 1 are connected by PU material liquid-conducting pipes; these pipes are wrapped with heat-insulating cotton; the liquid storage tanks and pipes are filled with antifreeze; the output of each magnetostrictive hydrostatic level 1 is a digital signal, using RS485 signal output for remote automated monitoring. Power supply and communication between the magnetostrictive hydrostatic level 1s at each measuring point are conducted in series via a bus mode. The measuring points and reference points of the magnetostrictive hydrostatic level 1 are installed at approximately the same elevation, with the height difference within the measuring range and sufficient settlement space allowed. The storage tanks of each magnetostrictive hydrostatic level 1 are connected by PU material liquid-conducting pipes. The pipes should be smooth, without Ω-shaped bends, and the bends should not create dead zones for airflow. The length of the liquid-conducting pipes should be as short as possible to reduce excessive stabilization time and errors caused by excessive liquid flow distance. The magnetostrictive hydrostatic level 1 is used to measure the relative settlement of each measuring point. The overall accuracy (<0.05%FS) and range (200mm) of a single device meet the accuracy requirements of first-class building deformation measurement. Compared to differential pressure hydrostatic levels, it is more accurate and effectively avoids the measurement errors caused by temperature changes in the measurement site and atmospheric pressure differences at various measuring points in a closed environment. Compared to traditional optical and laser measuring equipment, it does not require a line-of-sight and is suitable for settlement observation requirements in various complex environments. Specifically, using the same magnetostrictive hydrostatic level as each measuring point as the working benchmark can eliminate data errors caused by factors such as liquid evaporation and instrument system errors. The working benchmarks are located outside the deformation influence range, i.e., outside the plant, in a stable location that is easy to preserve long-term. The change in the real-time measured value of each measuring point relative to the working benchmark is the settlement change. The working benchmarks should be periodically measured and calibrated in conjunction with the plant's internal measurement benchmarks using leveling methods to ensure the accuracy of the monitoring results. The magnetostrictive hydrostatic level 1 can also be equipped with a waterproof vent valve, allowing the liquid level in the storage tanks at each measuring point of the entire system to communicate with the atmosphere, thereby ensuring that the liquid level pressure at all measuring points is atmospheric pressure and eliminating the influence of air pressure changes on the monitoring results. The storage tanks and the liquid inlet pipes are filled with antifreeze, providing excellent performance such as antifreeze in winter, anti-boiling in summer, anti-scaling, and anti-corrosion all year round, ensuring long-term stable operation of the equipment. The magnetostrictive hydrostatic level 1 outputs a digital signal using RS485 signal output, enabling remote automated monitoring. Power supply and communication between the monitoring devices installed at each measuring point are conducted in series using a bus mode, saving cables and increasing applicability in complex environments.

[0037] The installation location of the embedded strain gauge 2 is determined based on the characteristics of the domestic waste storage and stacking within the garbage pit. The bottom of the garbage pit experiences the greatest lateral force from the accumulated waste, and considering the reverse force exerted by the soil on the sidewalls of the garbage pit, it can be installed in the stress change monitoring area on the first floor of the garbage pit. This stress change monitoring area is a shear wall structure enclosed by frame columns and frame beams. Three measuring points are vertically arranged in the middle of each stress change monitoring area, located at 1 / 4, 1 / 2, and 3 / 4 of the height, respectively, with the embedded strain gauge 2 installed horizontally in the center. The embedded strain gauge 2 is pre-embedded during construction, installed after the main structural reinforcement is tied and before concrete pouring, and marked accordingly. During concrete pouring, the vibrator should be kept away from the embedded strain gauge 2. The embedded strain gauge 2 is designed using vibrating wire theory and outputs a vibrating wire signal. The power supply and communication of the embedded strain gauge 2 utilize a four-core shielded cable bus mode to transmit vibrating wire and temperature signals. The monitoring equipment bus at each measuring point is individually connected to the distributed acquisition base station 5. The distributed acquisition base station 5 acquires the vibrating wire signal and supports 4-32 channels of vibrating wire signals, while also supporting 485 serial port signal output, GPRS wireless network transmission, and SD card data storage. The embedded strain gauge 2 is made entirely of stainless steel, featuring corrosion resistance and a long service life. The embedded strain gauge 2 has a built-in temperature sensor that can directly obtain the temperature at the measuring point. During the fermentation of domestic waste in the garbage pit, the temperature rises, resulting in a temperature difference between the inside and outside of the garbage pit. The temperature at the measuring point can be used for temperature correction of the strain value. The embedded strain gauge 2, designed using vibrating wire theory and outputting a vibrating wire signal, has advantages such as high sensitivity and accuracy, good linearity and stability. The embedded strain gauge 2 is powered and communicated using a four-core shielded cable, and transmits vibrating wire signals and temperature signals in bus mode. The monitoring equipment bus of each measuring point needs to be connected to the distributed acquisition base station 5 separately.

[0038] Inclinometer 3 is horizontally installed on the third floor of the waste pit, located on the outer facade of the frame column. This allows it to accurately reflect the overall deformation trend of the waste pit structure. Inclinometer 3 should be installed as horizontally as possible, without any shaking, to avoid excessive tilt angles that could prevent data reading. The installation orientation and elevation of inclinometer 3 at all monitoring points should be consistent. The output of inclinometer 3 is a digital signal, using RS485 for remote automated monitoring. Power supply and communication between inclinometers 3 are conducted via a bus-mode serial communication. The monitoring angle value of inclinometer 3 is calculated based on the installation height and horizontal displacement, i.e., θ = arctan(L / H), where L is the horizontal displacement, θ is the monitoring angle value, and H is the installation height. The digital signal output of inclinometer 3 using RS485 enables remote automated monitoring. Power supply and communication between the monitoring devices installed at each measuring point are conducted via a bus-mode serial communication, saving cables and increasing applicability in complex environments. The angle value monitored by the inclinometer 3 is used to determine the impact on the surrounding equipment, especially the incinerator and waste heat boiler, which are different structural entities from the garbage pit, but are interconnected and interdependent.

[0039] The monitoring cloud platform can be a PC 6, which is connected to the data acquisition instrument 4 and the distributed data acquisition base station 5 of the data acquisition terminal. The monitoring cloud platform is used to receive the measurement data of the magnetostrictive hydrostatic level 1, the embedded strain gauge 2 and the inclinometer 3, and to provide early warning of deformation of the garbage pool based on the measurement data.

[0040] The data acquisition terminal exports the data to the PC terminal computer 6; the monitoring cloud platform marks the monitoring location on the map; the monitoring cloud platform is used for alarm settings, database management, and result output.

[0041] The aforementioned data acquisition terminal can be powered by either a solar panel or AC220V, offering energy savings and flexibility. The data acquisition unit 4 integrates measurement and transmission functions, featuring online, power-saving, and sleep modes. It is suitable for environments with a wide variety of sensors, dispersed distribution, wireless networking requirements, and remote data upload capabilities. The data acquisition unit 4 adopts a modular, standard 3U rack-mount design, simplifying maintenance and replacement, and enabling timely troubleshooting. The data acquisition unit 4 can be configured with four channels: a four-channel RS485 digital module supporting up to 40 digital signal sensors (multiple RS485 signal sensors can be connected simultaneously per channel, with adjustable access quantity per channel); a four-channel vibrating wire module supporting up to four vibrating wire signal sensors; a four-channel analog module supporting up to four analog signal sensors; and a four-channel switch module supporting up to four switch signal sensors. The data acquisition unit 4 is equipped with a dedicated dongle, supporting remote reverse control via mobile phone (Bluetooth), configuration of instrument parameters, data viewing, and remote monitoring of instrument status such as remaining battery power, signal strength, temperature, and humidity. The distributed data acquisition base station 5 automatically acquires vibrating wire signals, supports wireless communication, and integrates measurement, transmission, and power supply functions. It features sleep mode, power-saving mode (low power consumption), and real-time mode. Through automatic interval sampling, continuous sampling, and manual sampling, it achieves automated monitoring requirements. It can operate normally in surrounding climates and is waterproof, lightning-proof, and resistant to electromagnetic interference. The distributed data acquisition base station 5 supports 4-32 vibrating wire signal channels, and simultaneously supports 485 serial port signal output and GPRS network (China Mobile, China Unicom, China Telecom 4G) wireless transmission, and supports SD card data storage. The distributed data acquisition base station 5 has a built-in Bluetooth module, allowing connection to a mobile phone via Bluetooth and parameter configuration using a mobile APP. It is simple and easy to operate, with main functions including: setting system parameters (working mode, upload ID, and port number), upload parameters (sampling interval and upload interval), module parameters, and action settings. The distributed data acquisition base station 5 features an open structure and a modular, plug-and-play design, allowing for customized parameter configuration to achieve data acquisition according to project needs. It offers high measurement accuracy and system stability and reliability.

[0042] The monitoring cloud platform, through proprietary remote configuration software, allows for data export, setting of data collection intervals, configuration of chart display methods, and marking of monitored project locations on a map. Preferably, the monitoring cloud platform can, according to the actual project situation and management needs, perform alarm settings (setting alarm thresholds, sending emails, sending SMS messages), database management (the cloud server has a large network database), and output of results (daily reports, data tables, graphs), etc.

[0043] In general, this application discloses a waste pit deformation monitoring system that monitors settlement, tilt, and stress changes in the waste pit structure. The system includes sensing terminals, data acquisition terminals, and a monitoring cloud platform. The sensing terminals include a magnetostrictive hydrostatic level 1, an embedded strain gauge 2, and an inclinometer 3, arranged according to the characteristics and storage capacity of each zone within the waste pit, and their impact on the waste pit structure. The intelligent data acquisition terminals include an intelligent data acquisition instrument 4 and a distributed data acquisition base station 5, connected to each device via communication lines and powered by cables. The monitoring cloud platform includes a PC 6, which can be deployed in the production control room or accessed via any networked computer to view deformation monitoring data, as needed for production management. The monitoring cloud platform can automatically push early warning information, enabling remote real-time monitoring and automatic early warning of the waste pit structure's health, preventing structural deformation, damage, and environmental pollution accidents.

[0044] This application arranges deformation monitoring points according to the characteristics of the municipal solid waste storage zones within the waste incineration power plant. Throughout the entire life cycle of the plant's operation, the monitoring data can effectively guide production management to ensure the structural safety of the waste incineration power plant. All equipment and accessories are one-time investments, resulting in low maintenance costs and cost savings. The system equipment is connected by cables, eliminating the need for line-of-sight conditions. Adjustments can be made based on the site layout to avoid the influence of equipment and pipelines, adapting to various site conditions and natural environments. Management personnel can remotely monitor changes in the waste incineration power plant structure in real time via mobile phones, PCs, etc., requiring minimal professional expertise. Alarm thresholds are adjustable, and the monitoring cloud platform can automatically push early warning information, demonstrating a high degree of automation.

[0045] In some embodiments, such as Figure 4 As shown, this application also provides a method for monitoring the deformation of a waste pit using the waste pit deformation monitoring system described above, comprising:

[0046] S1: The settlement of the waste pit was measured using a magnetostrictive hydrostatic level; the stress changes in the waste pit were measured using an embedded strain gauge; and the tilt of the waste pit was measured using an inclinometer.

[0047] S2: The data acquisition unit acquires the measurement data of the magnetostatic level and the inclinometer; the distributed data acquisition base station acquires the measurement data of the embedded strain gauge; and

[0048] S3: The monitoring cloud platform is used to receive the measurement data from the magnetostatic level, embedded strain gauge and inclinometer, and to provide early warning of deformation of the waste pool based on the measurement data.

[0049] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] The above-described embodiments are merely illustrative of several implementation methods of this application and are only used to illustrate the technical solutions of this application, not to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application. For those skilled in the art, several variations and improvements can be made without departing from the concept of this application, and these all fall within the protection scope of this application.

Claims

1. A deformation monitoring system for a waste pit, characterized in that, include: The sensing terminal includes a magnetostatic level, an embedded strain gauge, and an inclinometer; the magnetostatic level is used to measure the settlement of the waste pit, the embedded strain gauge is used to measure the stress change of the waste pit, and the inclinometer is used to measure the tilt of the waste pit. The data acquisition terminal includes a data acquisition instrument and a distributed data acquisition base station; the data acquisition instrument is connected to the magnetostrictive hydrostatic level and the inclinometer, and the distributed data acquisition base station is connected to the embedded strain gauge. The monitoring cloud platform is connected to the data acquisition instrument and the distributed data acquisition base station of the acquisition terminal, respectively. The monitoring cloud platform is used to receive the measurement data of the magnetostrictive hydrostatic level, the embedded strain gauge and the inclinometer, and to provide early warning of deformation of the waste pool based on the measurement data.

2. The waste pit deformation monitoring system according to claim 1, characterized in that: The magnetostatic level is installed at the four corners of the garbage pit and on the column bases every 2-3 columns.

3. The waste pit deformation monitoring system according to claim 2, characterized in that: The storage tanks of each magnetostatic level are connected by PU material liquid pipes; the liquid pipes are wrapped with heat-insulating cotton; the storage tanks and liquid pipes are filled with antifreeze; the output of the magnetostatic level is a digital signal, using RS485 signal output to realize remote automatic monitoring, and the power supply and communication between the magnetostatic levels at each measuring point are connected in series in bus mode.

4. The waste pit deformation monitoring system according to claim 1, characterized in that: The embedded strain gauge is installed in the stress change monitoring area on the first floor of the waste pit. The stress change monitoring area is a shear wall structure enclosed by frame columns and frame beams.

5. The waste pit deformation monitoring system according to claim 4, characterized in that: Three measuring points are vertically arranged in the middle of each stress change monitoring area. The three measuring points are located at 1 / 4, 1 / 2 and 3 / 4 of the height direction, respectively, and the embedded strain gauge is installed in the center of the horizontal direction.

6. The waste pit deformation monitoring system according to claim 5, characterized in that: The embedded strain gauge is designed using vibrating wire theory and outputs a vibrating wire signal. The power supply and communication of the embedded strain gauge use a four-core shielded cable, and the vibrating wire signal and temperature signal are transmitted in bus mode. The monitoring equipment bus of each measuring point is individually connected to the distributed acquisition base station. The distributed acquisition base station acquires the vibrating wire signal and supports 4-32 channels of vibrating wire signal. It also supports 485 serial port signal output, GPRS network wireless transmission and SD card data storage.

7. The waste pit deformation monitoring system according to claim 1, characterized in that: The inclinometer is horizontally installed on the third floor of the waste pit and located on the outer facade of the frame column.

8. The waste pit deformation monitoring system according to claim 7, characterized in that: The output of the inclinometer is a digital signal, using RS485 signal output to achieve remote automated monitoring. The power supply and communication between the inclinometers are connected in series in bus mode. The monitoring angle value of the inclinometer is calculated based on the installation height and the horizontal displacement, i.e., θ = arctan(L / H), where L is the horizontal displacement, θ is the monitoring angle value, and H is the installation height.

9. The waste pit deformation monitoring system according to claim 1, characterized in that: The monitoring cloud platform includes a mobile phone or a PC; the data acquisition terminal exports data to the mobile phone or PC; the monitoring cloud platform marks the monitoring location on a map; the monitoring cloud platform is used for alarm settings, database management, and results output.

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