Building health monitoring system based on field monitoring

Abstract

The invention relates to the technical field of building detection, and discloses a building health monitoring system based on field monitoring, and the system comprises a sensor module which is used for monitoring various health parameters of a building; the data acquisition module is used for collecting and converting signals of the sensor; the communication module is used for transmitting data to a remote terminal; the control module is used for regularly starting and controlling each sensor; the data processing module is used for analyzing and storing data; the display alarm module is used for displaying the monitoring result and giving an alarm; and the concrete structure detection module is used for detecting the health condition of the concrete structure of the building. Through real-time monitoring, the system can timely discover potential problems of the building, such as foundation settlement, inclination and stress abnormity, the monitoring response speed is improved, managers can quickly take measures to prevent problem deterioration, and meanwhile, comprehensive building health assessment results are provided to help the managers to make reasonable maintenance plans, so that the maintenance efficiency of the building is improved. The service life of the building is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of building detection, and in particular to a building health monitoring system based on on-site monitoring. Background Art

[0002] With the development of modern society and the acceleration of urbanization, the number and size of buildings are increasing. However, during the use of buildings, due to environmental changes, natural disasters, human factors and other factors, the structural health of buildings will gradually deteriorate, and even potential safety hazards may occur. Traditional building health monitoring methods mainly rely on manual inspections, which have the disadvantages of being time-consuming, laborious, and inaccurate, and are difficult to meet the needs of modern building management and maintenance.

[0003] Existing on-site monitoring assesses the health of buildings by manually inspecting and recording the appearance and internal structure of buildings. Although this method is simple, it relies on manual experience, the test results are highly subjective, and it is difficult to ensure the comprehensiveness and accuracy of the test; at the same time, sensor monitoring is used: sensors are installed at key parts of the building to monitor the health parameters of the building in real time, such as displacement, stress, and temperature. This method can provide relatively accurate monitoring data, but due to the limitations of a single sensor, it is difficult to achieve comprehensive monitoring of the overall health of the building.

[0004] To this end, the present invention proposes a building health monitoring system based on on-site monitoring. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a building health monitoring system based on on-site monitoring, which solves the problem that it is difficult to ensure the comprehensiveness and accuracy of the detection results, and it is difficult to achieve comprehensive monitoring of the overall health status of the building due to the limitations of a single sensor.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A building health monitoring system based on on-site monitoring, comprising:

[0007] Sensor modules to monitor various health parameters of buildings;

[0008] Data acquisition module, used to collect and convert sensor signals;

[0009] A communication module for transmitting data to a remote terminal;

[0010] Control module, used for timing start and control of each sensor;

[0011] Data processing module, used to analyze and store data;

[0012] Display alarm module, used to display monitoring results and issue alarms;

[0013] Concrete structure detection module, used to detect the health of the concrete structure of the building;

[0014] Steel bar structure detection module, used to detect the health of the steel bar structure of the building;

[0015] The position offset detection module is used to detect the offset of the building structure.

[0016] Preferably, the sensor module comprises:

[0017] Pore ​​water pressure sensor, used to measure the seepage water pressure in the soil. The pore water pressure sensor is buried in the foundation at the bottom of the building, and the water column height is directly obtained through the sensor;

[0018] Distance sensors are used to monitor the settlement rate of buildings. Distance sensors are installed around the building and calculate the settlement rate by measuring the height changes multiple times and recording the time intervals.

[0019] Temperature sensor and humidity sensor are used to monitor the temperature and humidity around the building. The sensor directly reads the temperature and humidity values ​​and transmits them to the data acquisition module;

[0020] Gyroscope sensor, used to monitor the offset state of the building. The gyroscope sensor is installed at the center of gravity of the building, obtains the angular velocity in real time, and calculates the offset angle by integration;

[0021] Strain gauge pressure sensors are used to measure stress inside buildings. The sensor directly measures strain and calculates stress based on the elastic modulus of the material.

[0022] Preferably, the data acquisition module includes:

[0023] Analog-to-digital converter, used to convert the analog signal of the sensor into a digital signal to ensure the accuracy and processability of the data;

[0024] Data storage device, used to temporarily store the converted digital signals to ensure the integrity and continuity of the data;

[0025] Signal interface, used to connect sensors and analog-to-digital converters to ensure correct signal transmission;

[0026] Data filter, used to filter out noise and invalid data and improve data quality.

[0027] Preferably, the communication module includes:

[0028] Wireless communicator, used to transmit data via wireless network, transmit data via wireless network, reduce wiring complexity and ensure real-time data transmission;

[0029] Network interface, used to connect wireless communicators and remote terminals to ensure correct signal transmission;

[0030] Signal transmitter, used to send data to the remote terminal to ensure timely transmission of data;

[0031] Data encryptor is used to encrypt transmitted data to ensure data security and privacy.

[0032] Preferably, the control module includes:

[0033] Timer, used to start the sensor regularly for data collection, to ensure the timing and regularity of data collection;

[0034] Control interface, used to connect timers and sensors to ensure the correct start and stop of sensors;

[0035] The power controller is used to manage the power supply of the sensor to ensure the normal working state of the sensor;

[0036] Control software is used to configure and manage the operation of control modules, improving the flexibility and automation level of the system.

[0037] Preferably, the data processing module includes:

[0038] A data analysis unit, used to analyze the received data, evaluate the health status of the building, and generate an evaluation report;

[0039] Storage unit, used for long-term storage of analyzed data to facilitate subsequent query and historical data analysis;

[0040] Processor, which is used to perform data analysis and storage operations to ensure efficient operation of the system;

[0041] Data backup unit, used to regularly back up stored data to prevent data loss and disaster recovery.

[0042] Preferably, the display alarm module includes:

[0043] Display, used to display monitoring results in real time, so that managers can view and analyze data;

[0044] Alarms are used to sound an alarm when an abnormality is detected, providing timely warning of abnormal conditions in the building;

[0045] User interface, used to manage and control display and alarm functions, providing a user-friendly operation interface;

[0046] The remote monitoring unit is used for remote monitoring via the Internet to improve the convenience and coverage of monitoring.

[0047] Preferably, the concrete structure detection module includes:

[0048] Concrete strength sensor, used to measure the strength of concrete, evaluate the solidity of concrete structure, obtain the destructive force and damage area through press test, and calculate the concrete strength;

[0049] Carbonation depth detector, used to detect the carbonation depth of concrete, evaluate the aging degree of concrete, and obtain the carbonation depth through chemical reagent method;

[0050] Crack depth detector, used to measure the crack depth of concrete structure, evaluate the impact of cracks on the structure, measure the distance between seamless evaluation transducers, the acoustic time value of the crack evaluation and the acoustic time value of the seamless evaluation through ultrasonic equipment, and calculate the crack depth;

[0051] Ultrasonic detectors are used to detect internal defects in concrete, providing non-destructive testing and calculating distances through ultrasonic propagation time and sound speed;

[0052] X-ray detectors are used to deeply analyze the internal structure of concrete and obtain internal defects and structural information through image analysis.

[0053] Preferably, the steel bar structure detection module includes:

[0054] Steel bar stress sensor, used to measure the stress of steel bars, evaluate the stress state of steel bars, and calculate stress by measuring strain and combining elastic modulus;

[0055] Steel bar corrosion detector, used to detect the degree of steel bar corrosion, evaluate the aging of steel bars, and obtain corrosion potential and current through electrochemical methods;

[0056] Steel bar displacement sensor, used to monitor the position change of steel bar structure, detect the displacement of steel bar, calculate the displacement change by measuring the force and cross-sectional area and combining the elastic modulus;

[0057] Electromagnetic induction detector, used to detect the magnetic field changes of steel bars, evaluate the force and position of steel bars, and obtain magnetic field change data through the principle of electromagnetic induction;

[0058] Radar detectors are used to deeply detect the location and distribution of steel bars, provide accurate internal structure information, and calculate distance and distribution through radar wave reflection time.

[0059] Preferably, the position offset detection module includes:

[0060] Horizontal displacement sensor, used to measure the horizontal displacement of buildings, evaluate the degree of horizontal deviation, obtain the coordinates of the starting point and the end point through GPS or laser rangefinder, and calculate the horizontal displacement;

[0061] Vertical displacement sensor, used to measure the vertical displacement of the building, evaluate the degree of vertical deviation, obtain the coordinates of the starting point and the end point through GPS or laser rangefinder, and calculate the vertical displacement;

[0062] Tilt sensor, used to measure the tilt angle of a building, evaluate the degree of tilt, obtain height changes and horizontal displacement changes through GPS or laser rangefinder, and calculate the tilt angle;

[0063] GPS locator, used to accurately measure the absolute position of a building, provide a location reference, and obtain the absolute coordinates of the building through satellite signals;

[0064] Laser rangefinder is used to measure the displacement of buildings with high precision, ensure the accuracy of measurement, and calculate the distance through laser flight time and speed of light.

[0065] The present invention provides a building health monitoring system based on on-site monitoring. It has the following beneficial effects:

[0066] 1. The present invention installs a variety of high-precision sensors at key locations of buildings, and the sensors can collect the health parameters of buildings in real time. Through the timer in the control module, the system can start each sensor to collect data at regular intervals to ensure the timeliness of the data. The data is transmitted to the remote terminal in real time for processing and display through the wireless communicator and network interface in the communication module. Through real-time monitoring, the system can promptly detect potential problems of the building, such as foundation settlement, tilt, and stress anomalies, improve the response speed of monitoring, and enable managers to take quick measures to prevent problems from worsening.

[0067] 2. The present invention provides comprehensive building health assessment results, including foundation stability, structural strength, stress distribution, environmental impact, etc. It provides a scientific basis for building maintenance and management, helps managers formulate reasonable maintenance plans, and extends the service life of buildings. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] Figure 1 is a system architecture diagram of the present invention;

[0069] Figure 2 is a schematic diagram of a sensor module of the present invention;

[0070] Figure 3 It is a schematic diagram of a data acquisition module of the present invention;

[0071] Figure 4 It is a schematic diagram of a communication module of the present invention;

[0072] Figure 5 is a schematic diagram of a control module of the present invention;

[0073] Figure 6 It is a schematic diagram of a data processing module of the present invention;

[0074] Figure 7 It is a schematic diagram of a display alarm module of the present invention;

[0075] Figure 8 It is a schematic diagram of a concrete structure detection module of the present invention;

[0076] Fig. 9 It is a schematic diagram of a steel bar structure detection module of the present invention;

[0077] Fig.10 Schematic diagram of a position offset detection module of the present invention. DETAILED DESCRIPTION

[0078] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0079] Example:

[0080] Please see attached Figure 1 -Attached Fig.10 The embodiment of the present invention provides a building health monitoring system based on on-site monitoring. The system includes a sensor module, a data acquisition module, a communication module, a control module, a data processing module, a display alarm module, a concrete structure detection module, a steel structure detection module and a position offset detection module. The modules exchange data and control each other through a standardized interface to ensure the overall coordination of the system and the accuracy of the data.

[0081] In this embodiment, the sensor module includes the following sub-units:

[0082] Pore ​​water pressure sensor: used to measure the seepage water pressure in the soil. The pore water pressure sensor is buried in the foundation at the bottom of the building. The sensor directly obtains the water column height h and calculates the pore water pressure P w =γ w ·h;

[0083] γ w is the unit weight of water, usually 9.81 kN / m 3 Under certain conditions, the threshold value can be set to 20 kPa according to the local water density and gravity acceleration. w When this threshold is exceeded, the system issues an alarm.

[0084] Distance sensor: used to monitor the settlement rate of a building. Distance sensors are installed around the building and calculate the settlement rate by measuring the height change Δh multiple times and recording the time interval Δt. Set the threshold to 2mm / day. s When this threshold is exceeded, the system issues an alarm.

[0085] Temperature sensor and humidity sensor: used to monitor the temperature and humidity around the building respectively. The sensor directly reads the temperature and humidity values ​​and transmits them to the data acquisition module.

[0086] Gyro sensor: used to monitor the offset state of the building. The gyro sensor is installed at the center of gravity of the building, obtains the angular velocity ω in real time, and calculates the offset angle θ = ∫ωdt by integration;

[0087] The time t is recorded by the system timer, and the deviation angle threshold is set to 1°. When θ exceeds the threshold, the system will issue an alarm.

[0088] Strain pressure sensor: used to measure stress inside buildings. The sensor directly measures the strain ∈ and calculates the stress σ=E·∈ in combination with the elastic modulus E of the material; the stress threshold is set to 30MPa, and the system issues an alarm when σ exceeds the threshold.

[0089] The data acquisition module is used to collect and convert sensor signals, convert analog signals into digital signals, and perform preliminary processing and storage.

[0090] In this embodiment, the data acquisition module includes the following subunits:

[0091] Analog-to-digital converter: Converts the analog signal of the sensor into a digital signal to ensure the accuracy and processability of the data. The analog-to-digital converter uses a high-precision ADC chip, and the specific steps include sampling, quantization, and encoding.

[0092] Data storage: Temporarily stores the converted digital signal to ensure the integrity and continuity of the data. The data storage uses high-capacity storage chips and adopts FIFO (first in first out) mechanism to store data.

[0093] Signal interface: used to connect sensors and analog-to-digital converters to ensure correct signal transmission. The signal interface uses standard transmission protocols (such as I2C, SPI, etc.).

[0094] Data filter: used to filter noise and invalid data to improve data quality. The data filter uses a digital filtering algorithm, such as a Kalman filter. The specific steps include initializing the filter, predicting the state, and updating the state.

[0095] The communication module is used to transmit data to the remote terminal to ensure the real-time and accuracy of the data.

[0096] In this embodiment, the communication module includes the following sub-units:

[0097] Wireless communicator: Transmit data through wireless network, reduce wiring complexity and ensure real-time data transmission. Wireless communicator uses Wi-Fi or LoRa technology, and the specific steps include network configuration, connection and data transmission.

[0098] Network interface: used to connect the wireless communicator and the remote terminal to ensure the correct transmission of the signal. The network interface uses Ethernet or serial port communication.

[0099] Signal transmitter: used to send data to the remote terminal to ensure timely data transmission. The signal transmitter uses a high-frequency transmission module, and the specific steps include data packaging, modulation and transmission.

[0100] Data encryptor: used to encrypt transmitted data to ensure data security and privacy. The data encryptor uses the AES (Advanced Encryption Standard) algorithm, and the specific steps include key generation, encryption, and decryption.

[0101] The control module is used to start and control each sensor at a fixed time to ensure the timing and accuracy of data collection.

[0102] In this embodiment, the control module includes the following sub-units:

[0103] Timer: used to start the sensor to collect data at a fixed time to ensure the timing and regularity of data collection. The timer uses an RTC (real-time clock) chip, and the specific steps include time setting, starting and stopping.

[0104] Control interface: used to connect timers and sensors to ensure the correct start and stop of sensors. The control interface uses GPIO (general purpose input and output) ports, and the specific steps include signal transmission and status monitoring.

[0105] Power controller: manages the power supply of the sensor to ensure the normal operation of the sensor. The power controller uses a voltage-stabilized power module. The specific steps include power management and fault detection.

[0106] Control software: used to configure and manage the operation of the control module, improving the flexibility and automation level of the system. The control software is developed using embedded systems, and the specific steps include program design, debugging and deployment.

[0107] The data processing module is used to analyze and store data and evaluate the health status of the building.

[0108] In this embodiment, the data processing module includes the following sub-units:

[0109] Data analysis unit: Analyzes the received data, evaluates the health status of the building, and generates an evaluation report. The data analysis unit uses machine learning algorithms, such as BP neural network. The specific steps include data preprocessing, model training, and result output.

[0110] Storage unit: long-term storage of analyzed data for subsequent query and historical data analysis. The storage unit uses a database system, such as MySQL, and the specific steps include data insertion, query and backup.

[0111] Processor: performs data analysis and storage operations to ensure efficient operation of the system. The processor uses a high-performance CPU. The specific steps include task scheduling, data processing, and system monitoring.

[0112] Data backup unit: regularly backs up stored data to prevent data loss and disaster recovery. The data backup unit uses cloud storage services, and the specific steps include data synchronization, backup and recovery.

[0113] The display alarm module is used to display monitoring results and issue alarms to promptly warn of abnormal conditions in buildings.

[0114] In this embodiment, the display alarm module includes the following subunits:

[0115] Display: Display monitoring results in real time, which is convenient for managers to view and analyze data. The display uses an LCD or LED screen. The specific steps include data refresh, interface design and user interaction.

[0116] Alarm: When an abnormality is detected, it will sound an alarm to warn the abnormal condition of the building in time. The alarm uses a buzzer or warning light. The specific steps include signal detection, alarm triggering and status reset.

[0117] User interface: used to manage and control display and alarm functions, providing a friendly user interface. The user interface uses a touch screen or buttons, and the specific steps include command parsing, operation feedback and status display.

[0118] Remote monitoring unit: Remote monitoring through the Internet improves the convenience and coverage of monitoring. The remote monitoring unit uses a Web server, and the specific steps include data uploading, remote access and authority management.

[0119] The concrete structure detection module is used to detect the health status of the concrete structure of the building.

[0120] In this embodiment, the concrete structure detection module includes the following subunits:

[0121] Concrete strength sensor: measures the strength of concrete, evaluates the robustness of concrete structures, obtains the destructive force F (obtained through press testing) and the destruction area A (calculated by measuring the cross-sectional area of ​​the destroyed specimen) through press testing, and calculates the concrete strength Set the concrete strength threshold to 25MPa. c When the threshold is lower than the system will sound an alarm.

[0122] Carbonation depth detector: detects the carbonation depth of concrete, evaluates the degree of concrete aging, and obtains the carbonation depth through chemical reagent method. The specific steps include: spraying the chemical reagent phenolphthalein on the concrete surface, observing the color change, and recording the carbonation depth value. The carbonation depth threshold is set to 10mm, and the system will issue an alarm when the carbonation depth exceeds the threshold.

[0123] Crack depth detector: measures the crack depth of concrete structures, evaluates the impact of cracks on structures, and measures the distance L between seamless evaluation transducers and the acoustic time value t during crack evaluation through ultrasonic equipment. c And seamless evaluation time value t, calculate the crack depth Set the crack depth threshold to 5 mm. c When this threshold is exceeded, the system issues an alarm.

[0124] Ultrasonic detector: used to detect internal defects in concrete, providing non-destructive testing and calculating distance through ultrasonic propagation time t and sound speed v

[0125] X-ray detector: used to deeply analyze the internal structure of concrete and obtain internal defects and structural information through image analysis.

[0126] The steel structure detection module is used to detect the health of the steel structure of a building.

[0127] In this embodiment, the steel bar structure detection module includes the following sub-units:

[0128] Steel bar stress sensor: measures the stress of steel bars, evaluates the stress state of steel bars, and measures the strain s Combined with the elastic modulus E s Calculate stress σ s =E s ∈ s . Set the steel bar stress threshold to 400MPa. s When this threshold is exceeded, the system issues an alarm.

[0129] Rebar corrosion detector: detects the degree of corrosion of the steel bars, evaluates the aging of the steel bars, and obtains the corrosion potential and current through electrochemical methods. The specific steps include: connecting the electrochemical sensor, measuring the potential difference and current change, and analyzing the degree of corrosion. The corrosion potential threshold is set to -0.5V, and the system will sound an alarm when the potential is lower than this threshold.

[0130] Rebar displacement sensor: monitors the position change of the rebar structure, detects the displacement of the rebar, and calculates the displacement change by measuring the force F and cross-sectional area A combined with the elastic modulus E For example, the displacement change threshold is set to 2 mm, and the system issues an alarm when ΔL exceeds the threshold.

[0131] Electromagnetic induction detector: used to detect changes in the magnetic field of steel bars, evaluate the force and position of the steel bars, and obtain magnetic field change data through the principle of electromagnetic induction.

[0132] Radar detector: used to deeply detect the location and distribution of steel bars, provide accurate internal structure information, and calculate the distance and distribution through the reflection time of radar waves.

[0133] The position deviation detection module is used to detect the deviation of the building structure.

[0134] In this embodiment, the position offset detection module includes the following subunits:

[0135] Horizontal displacement sensor: measures the horizontal displacement of the building, evaluates the degree of horizontal deviation, and obtains the coordinates of the starting point and the end point (x 1 ,y 1 ) and (x 2 ,y 2 ), calculate the horizontal displacement Set the horizontal displacement threshold to 5cm. h When this threshold is exceeded, the system issues an alarm.

[0136] Vertical displacement sensor: measures the vertical displacement of the building, evaluates the degree of vertical deviation, and obtains the coordinates of the starting and ending points through GPS or laser rangefinder 1 and z 2 , calculate the vertical displacement d v =|z 2 -z 1 ∣. Set the vertical displacement threshold to 5cm. v When this threshold is exceeded, the system issues an alarm.

[0137] Tilt sensor: measures the tilt angle of a building, assesses the degree of tilt, and obtains the height change Δ through GPS or laser rangefinder z And the horizontal displacement changes Δx, Δy, calculate the tilt angle The tilt angle threshold is set to 2°, and the system issues an alarm when θ exceeds the threshold.

[0138] GPS locator: accurately measure the absolute position of buildings, provide location reference, and obtain the absolute coordinates of buildings through satellite signals.

[0139] Laser rangefinder: measures the displacement of buildings with high precision to ensure the accuracy of measurement.

[0140] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Building health monitoring system based on on-site monitoring, It is characterized in that include: Sensor modules to monitor various health parameters of buildings; Data acquisition module, used to collect and convert sensor signals; A communication module for transmitting data to a remote terminal; Control module, used for timing start and control of each sensor; Data processing module, used to analyze and store data; Display alarm module, used to display monitoring results and issue alarms; Concrete structure detection module, used to detect the health of the concrete structure of the building; Steel bar structure detection module, used to detect the health of the steel bar structure of the building; The position offset detection module is used to detect the offset of the building structure.

2. The building health monitoring system based on on-site monitoring according to claim 1, It is characterized in that The sensor module comprises: Pore ​​water pressure sensor, used to measure the seepage water pressure in the soil; distance sensors to monitor the settlement rate of buildings; Temperature sensors and humidity sensors to monitor the temperature and humidity around the building; Gyroscopic sensors to monitor the building's deflection status; Strain gauge pressure sensors are used to measure stress inside buildings.

3. The building health monitoring system based on on-site monitoring according to claim 1, It is characterized in that The data acquisition module comprises: Analog-to-digital converter, used to convert the analog signal of the sensor into a digital signal; A data memory for temporarily storing the converted digital signal; Signal interface, used to connect sensors and analog-to-digital converters; Data filter, used to filter out noise and invalid data.

4. The building health monitoring system based on on-site monitoring according to claim 1, It is characterized in that The communication module comprises: A wireless communicator for transmitting data via a wireless network; Network interface, used to connect wireless communicators and remote terminals; A signal transmitter for sending data to a remote terminal; Data encryptor is used to encrypt transmitted data to ensure data security.

5. The building health monitoring system based on on-site monitoring according to claim 1, It is characterized in that The control module comprises: Timer, used to start the sensor regularly for data collection; Control interface, used to connect timers and sensors; A power controller to manage the power supply to the sensor; Control software, used to configure and manage the operation of the control modules.

6. The building health monitoring system based on on-site monitoring according to claim 1, It is characterized in that The data processing module comprises: A data analysis unit, used for analyzing the received data; A storage unit for long-term storage of analyzed data; A processor for performing data analysis and storage operations; The data backup unit is used to regularly back up the stored data.

7. The building health monitoring system based on on-site monitoring according to claim 1, It is characterized in that The display alarm module comprises: A display, used to display monitoring results in real time; An alarm to sound an alarm when an abnormality is detected; User interface for managing and controlling display and alarm functions; Remote monitoring unit for remote monitoring via the Internet.

8. The building health monitoring system based on on-site monitoring according to claim 1, It is characterized in that The concrete structure detection module comprises: Concrete strength sensor, used to measure the strength of concrete; Carbonation depth detector, used to detect the carbonation depth of concrete; Crack depth detector, used to measure the depth of cracks in concrete structures; Ultrasonic detectors for detecting internal defects in concrete; X-ray detector for in-depth analysis of the internal structure of concrete.

9. The building health monitoring system based on on-site monitoring according to claim 1, It is characterized in that The steel bar structure detection module comprises: Steel bar stress sensor, used to measure the stress of steel bars; Steel bar corrosion detector, used to detect the degree of steel bar corrosion; Steel bar displacement sensor, used to monitor the position change of steel bar structure; Electromagnetic induction detector, used to detect changes in the magnetic field of the steel bars; Radar detector for deep detection of the location and distribution of rebar.

10. The building health monitoring system based on on-site monitoring according to claim 1, It is characterized in that The position offset detection module comprises: Horizontal displacement sensor, used to measure the horizontal displacement of buildings; Vertical displacement sensor, used to measure the vertical displacement of buildings; Tilt sensors, used to measure the tilt angle of a building; GPS locators, used to accurately measure the absolute location of buildings; Laser rangefinder, used to measure the displacement of buildings with high precision.

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