Full-automatic foundation pit deep displacement measuring system and measuring method thereof

Abstract

The invention discloses a full-automatic foundation pit deep displacement measuring system and a measuring method thereof. The system comprises a microcontroller unit used for monitoring the stability and deep displacement of a foundation pit; the display module is used for displaying measurement data and a measurement system in real time, providing a visual data view and helping engineers to monitor the safety condition of the foundation pit; the system controls the stepping motor to move up and down through the stepping motor controller, records the position change of the motor through the encoder, and measures the inclination angle through the 485 sensor. The system has an automatic measurement function, can complete the measurement of the deep displacement of the foundation pit within a set time interval, and uploads the data to a background monitoring platform through a 4G module. According to the invention, the monitoring precision and efficiency are improved, the requirement of manual intervention is reduced, and the monitoring cost is reduced. The system has stable long-time operation capability, supports remote configuration and control through Bluetooth or a 4G module, and is suitable for various foundation pit monitoring application scenes.

Description

Technical Field

[0001] The present invention belongs to the technical field of civil engineering monitoring, and in particular relates to a fully automated foundation pit deep displacement measurement system and a measurement method thereof. Background Art

[0002] Currently, in foundation pit monitoring projects, deep displacement measurements are usually performed manually. This method is not only inefficient but also subject to large measurement errors due to human factors. With the advancement of science and technology, improving monitoring accuracy and efficiency has become an urgent problem to be solved. To this end, the present invention proposes a fully automatic inclinometer based on an embedded system, which realizes automated measurement through software control, reduces measurement errors, and improves work efficiency. Inclinometers, as key instruments in geological exploration, have been developed in China since the 1960s and 1970s. In the early days, domestic oil fields mainly relied on single-point and multi-point inclinometers for drilling operations. The core sensitive components of these instruments were compasses and pendulums. With the growing demand for directional well drilling, domestic oil fields began to introduce advanced foreign inclinometers, such as SST, DOT, MS-3, ESI, SRO, MWD650, FEMWD, QDYMWD, etc. These devices have improved the accuracy and efficiency of drilling operations to a certain extent. However, their application is limited because some equipment is not fully adapted to the special environment of Chinese oil fields.

[0003] With China's rapid economic growth, the application of inclinometers has expanded from traditional applications in oil and gas, construction, and geological exploration to emerging fields such as urban rail transit, highway construction, mine safety monitoring, and dam stability assessment, providing critical assurance for the safety and quality of various engineering projects. In recent years, domestic research institutions and enterprises have conducted extensive innovative research on inclinometer technology. For example, the research by Li Junxin, Lang Xiangwei, and others has led to the development of a new fixed inclinometer based on fiber Bragg grating sensing technology, a fully automatic intelligent inclinometer, and a while-drilling inclinometer suitable for small-bore, short-radius horizontal wells. These have not only enriched the product range of inclinometers but also significantly advanced the overall level of inclinometer technology in my country.

[0004] Since the late 19th century, inclinometer technology has evolved from bubble-type, mechanical, and optical inclinometers to electronic, non-magnetic, and omnidirectional inclinometers. Advances in technology, particularly the application of MEMS, wireless communications, and microcomputer control, have significantly improved inclinometer performance, enabling the transition from single-parameter measurement to multi-dimensional, real-time, remote monitoring.

[0005] Despite continuous advancements in inclinometer technology, current foundation pit monitoring projects still rely primarily on manual monitoring for deep displacement measurements. This method is not only inefficient and costly, but also prone to significant measurement errors due to human error. To address these issues, the industry has proposed a solution using fully automated monitoring technology. Fully automated foundation pit measurement can improve monitoring accuracy, increase monitoring efficiency, and reduce overall costs. This technology has been widely adopted in developed countries such as Europe and the United States. Companies in Germany, the United States, and Japan have demonstrated significant technological advantages in this field and have launched a number of advanced fully automated foundation pit measurement devices. For example, Trimble's fully automated total station is widely used in foundation pit monitoring, offering high-precision measurement, remote control, and data processing capabilities. Data collection through laser ranging, angle and direction measurement, automated measurement, and image and video assistance has greatly improved the accuracy and efficiency of monitoring work. Summary of the Invention

[0006] The purpose of the present invention is to provide a fully automated foundation pit deep displacement measurement system and measurement method thereof to solve the problems raised in the above background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions: a fully automated foundation pit deep displacement measurement system, comprising:

[0008] Microcontroller unit: used to monitor the stability and deep displacement of the foundation pit;

[0009] Display module: used to display measurement data and measurement system in real time and provide intuitive data view;

[0010] Communication module: used to transmit measurement data from the site to the remote monitoring system or data center, upload data to the background monitoring platform and receive instructions;

[0011] The communication module includes:

[0012] 4G communication module: used to achieve real-time data transmission and remote monitoring, upload data collected by various sensors in the measurement system to the background monitoring platform in real time and receive instructions;

[0013] Bluetooth communication module: used for short-distance data transmission and local communication, and for data transmission between sensors and data acquisition devices;

[0014] Stepper motor controller: used to control the rise and fall of the stepper motor;

[0015] Encoder: used to accurately measure and record deep displacement and record the position of the stepper motor;

[0016] Tilt sensor: used to monitor and measure the tilt changes of the structure, monitor the tilt of the structure around the foundation pit in real time, identify potential foundation settlement or structural deformation to assess the stability of the foundation pit and its supporting structure;

[0017] Proximity sensor: used to detect displacement changes and obstacles deep in the foundation pit;

[0018] GPS module: used for large-scale foundation pit areas, and provides high-precision location information to accurately measure the displacement of foundation pit boundaries and surrounding facilities;

[0019] Software architecture: used to provide hardware driver interfaces and control each device to complete specified tasks, while also being responsible for user transactions and fault handling.

[0020] Preferably, the software architecture includes at least a driver layer, a control layer and an application layer, wherein the driver layer provides a hardware driver interface, the control layer completes designated tasks by controlling various devices, and the application layer is responsible for user transactions and fault handling.

[0021] Preferably, the control layer includes a configuration management module, and the configuration management module is used to obtain configuration information, add new configuration information, and modify existing configuration information.

[0022] Preferably, the stepper motor controller includes an interface for initializing the stepper motor and controlling the stepper motor to rise, fall, and stop.

[0023] Preferably, the Bluetooth communication module and the 4G communication module realize local and remote data interaction;

[0024] Preferably, the microcontroller unit further includes:

[0025] Flash module: used to store data;

[0026] Encoder module: used to record the displacement of the stepper motor;

[0027] Button module: used for user operation;

[0028] Buzzer module: used to emit prompt sound;

[0029] LED module: used to indicate status.

[0030] Preferably, the proximity sensor includes:

[0031] Abnormal management module: responsible for detecting, analyzing and responding to abnormal situations in the system, ensuring the safety and stability of the foundation pit project, monitoring the deep displacement data of the foundation pit in real time, detecting whether there are abnormal values ​​or changes beyond the normal range, and diagnosing and reporting them.

[0032] The present invention also provides a measurement method of a fully automated foundation pit deep displacement measurement system, which specifically includes the following steps:

[0033] S1. First, initialize the measurement system after power-on and establish a communication connection with the local APP or background system through the Bluetooth communication module or 4G communication module;

[0034] S2. Connect the system device via the Bluetooth communication module for local configuration, and remotely configure device parameters via the 4G communication module;

[0035] S3. After the system configuration is complete, the system will automatically perform the inclinometer task according to the predetermined measurement cycle;

[0036] S4. During this process, the motor control module drives the motor up or down to the specified position. The encoder generates pulses to provide real-time feedback on the motor's position, while the tilt sensor collects angle data at each pit measurement point.

[0037] S5. The tilt sensor collects the angle data of each foundation pit measurement point. The measurement module sends the results to the transaction management module, which is responsible for uploading the data to the background monitoring platform and displaying the measurement results on the local LCD screen.

[0038] Preferably, during the entire foundation pit displacement measurement process, the configuration management module continuously monitors the system status and adjusts the configuration as needed;

[0039] Preferably, the system also supports a manual control mode, which triggers the stepper motor controller through the button module to control the motor to rise, fall or stop, and start a single manual measurement.

[0040] Compared with the existing technology, the technical effects and advantages of the present invention are as follows: the fully automated foundation pit deep displacement measurement system and its measurement method establish a communication connection with the local APP or background through Bluetooth communication and 4G communication modules. Local configuration can be performed through the Bluetooth connection device, or the device parameters can be remotely configured through the 4G communication module. After the configuration is completed, the system will automatically perform the inclinometer task according to the predetermined measurement cycle. In this process, the motor control module will drive the motor to rise or fall to the specified position, the encoder will generate pulses to feedback the position information of the motor in real time, and the tilt sensor will collect the angle data of each measuring point to complete the measurement of a set of data. The measurement module will send the results to the transaction management module, which is responsible for uploading the data to the background monitoring platform and displaying the measurement results on the local LCD screen. During the entire measurement process, the configuration management module continuously monitors the system status and adjusts the configuration as needed to ensure the smooth progress of the measurement task. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1This is a schematic diagram of the hardware framework structure of the present invention;

[0042] Figure 2 This is a schematic diagram of the hierarchical structure of the system software of the present invention;

[0043] Figure 3 This is a schematic diagram of the flow structure of the sensor probe jam detection algorithm of the present invention. DETAILED DESCRIPTION

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0045] See also Figure 1-3 The present invention provides a technical solution: a fully automated foundation pit deep displacement measurement system, comprising:

[0046] Microcontroller unit: used to monitor the stability and deep displacement of the foundation pit to ensure the safety and stability of the foundation pit project;

[0047] Display module: used to display measurement data and measurement systems in real time, and provide intuitive data views to help engineers monitor the safety status of foundation pits;

[0048] Communication module: used to transmit measurement data from the site to the remote monitoring system or data center, ensuring real-time data transmission and remote management of the system, and uploading data and receiving instructions to the background monitoring platform;

[0049] The communication module includes:

[0050] 4G communication module: used to achieve real-time data transmission and remote monitoring, upload data collected by various sensors in the measurement system to the background monitoring platform in real time and receive instructions;

[0051] Bluetooth communication module: used for short-distance data transmission and local communication, and for data transmission between sensors and data acquisition devices. It is suitable for scenarios where the distance between devices is relatively close.

[0052] Stepper motor controller: used to control the rise and fall of the stepper motor. In the deep displacement measurement system of the foundation pit, it is mainly used to accurately control the moving position of the sensor or detection equipment.

[0053] Encoder: used to accurately measure and record deep displacement and record the position of the stepper motor;

[0054] Tilt sensor: used to monitor and measure the tilt changes of the structure, monitor the tilt of the structure around the foundation pit in real time, identify potential foundation settlement or structural deformation to assess the stability of the foundation pit and its supporting structure;

[0055] Proximity sensor: used to detect displacement changes and obstacles deep in the foundation pit. When the foundation pit wall, support structure or other key parts move, the sensor can capture these changes in real time;

[0056] GPS module: used for large-scale foundation pit areas, and provides high-precision location information to accurately measure the displacement of foundation pit boundaries and surrounding facilities;

[0057] Software architecture: used to provide hardware driver interfaces and control each device to complete specified tasks, while also being responsible for user transactions and fault handling.

[0058] The software architecture includes at least a driver layer, a control layer, and an application layer. The driver layer provides a hardware driver interface, the control layer completes designated tasks by controlling various devices, and the application layer is responsible for user transactions and fault handling.

[0059] The control layer includes a configuration management module, which is used to obtain configuration information, add new configuration information, and modify existing configuration information.

[0060] The stepper motor controller includes an interface for initializing the stepper motor and controlling the stepper motor to rise, fall, and stop.

[0061] The Bluetooth communication module and the 4G communication module realize the data interaction between local data and the background monitoring platform;

[0062] Interaction: Used to report system commands and data configuration, status, and measurement information, and receive configuration, control, and factory reset commands for mutual communication and control.

[0063] The microcontroller unit further comprises:

[0064] Flash module: used to store data;

[0065] Encoder module: used to record the displacement of the stepper motor;

[0066] Button module: used for user operation;

[0067] Buzzer module: used to emit prompt sound;

[0068] LED module: used to indicate status.

[0069] The proximity sensor comprises:

[0070] Abnormal management module: It is mainly responsible for detecting, analyzing and responding to abnormal situations in the system, ensuring the safety and stability of the foundation pit project, monitoring the deep displacement data of the foundation pit in real time, detecting whether there are abnormal values ​​or changes beyond the normal range, and diagnosing and reporting them.

[0071] The present invention also provides a measurement method of a fully automated foundation pit deep displacement measurement system, which specifically includes the following steps:

[0072] S1. First, initialize the measurement system after power-on and establish a communication connection with the local APP or remote background through the Bluetooth communication module or 4G communication module;

[0073] S2. Connect the system device via the Bluetooth communication module for local configuration, and remotely configure device parameters via the 4G communication module;

[0074] S3. After the system configuration is complete, the system will automatically perform the inclinometer task according to the predetermined measurement cycle;

[0075] S4. During this process, the motor control module drives the motor to rise or fall to the specified position. The encoder generates pulses to provide real-time feedback of the motor's position information, while the tilt sensor collects the angle data of each foundation pit measurement point.

[0076] S5. The tilt sensor collects the angle data of each foundation pit measurement point to complete the measurement. The measurement module sends the results to the transaction management module, which is responsible for uploading the data to the background monitoring platform and displaying the measurement results on the local LCD screen.

[0077] During the entire foundation pit displacement measurement process, the configuration management module continuously monitors the system status and adjusts the configuration as needed to ensure the smooth progress of the foundation pit measurement task.

[0078] The system also supports manual control mode, which can trigger the stepper motor controller through the button module to control the motor to rise, fall or stop, and start a single manual measurement.

[0079] The fully automated foundation pit deep displacement measurement system mainly consists of two parts: hardware system and software system:

[0080] 1. Hardware system:

[0081] The fully automated deep-displacement measurement system for foundation pits is based on the STM32F407VET6 microcontroller. The STM32F407VET6 serves as the core of the system, connecting various peripherals such as the Bluetooth LE106 module, the EC600 4G module, the GPS module, the 12864 LCD display, encoders, stepper motors, stepper motor controllers, and the W25Q80 Flash memory. These components work together, with the STM32F407VET6 serving as the core processor, processing information from each component and controlling their coordinated operation. The Bluetooth LE106 module and the EC600 4G module enable Bluetooth parameter configuration and data upload to the backend monitoring platform. The LCD 12864 displays device status information. An encoder is used to obtain precise motor position data. Mechanical motion is achieved through the stepper motor and stepper motor controller. The W25Q80 Flash memory stores important data.

[0082] 2. Software Architecture

[0083] Layered architecture

[0084] Driver layer: responsible for hardware initialization and basic operations;

[0085] For example: use the function DG_HAL_Motor_Init(void) to initialize the motor driver;

[0086] Use the function DG_HAL_Motor_Up(int speed) to implement motor up control;

[0087] Use the function DG_HAL_Motor_Down(int speed) to realize the motor down control, and use the function DG_HAL_Motor_Stop to realize the motor stop;

[0088] Control layer: coordinates the work of various hardware components through control primitives;

[0089] Application layer: handles user transactions and system exceptions.

[0090] Module division

[0091] (1) Transaction management module: This module includes processing periodic measurements, manual measurements, Bluetooth parameter configuration, and 4G remote configuration.

[0092] Operation steps of periodic measurement mode:

[0093] 1. The user presses the automatic measurement button or the periodic timer times out to trigger the automatic measurement.

[0094] 2. The transaction management module generates zeroing, bottoming, and several measurement commands based on the hole depth, and then processes these commands in sequence;

[0095] 3. The transaction management module sends a zero adjustment command to the motor control module and waits for a reply;

[0096] 4. After receiving a positive response, the transaction management module sends a bottoming command to the motor control module and then waits for a response;

[0097] 5. After receiving a positive reply, the transaction management module sends a command to the motor control module to move to the specified position and then waits for a reply.

[0098] Manual measurement mode operation steps:

[0099] 1. The user presses the manual measurement button to generate a button interrupt and notify the transaction management thread;

[0100] 2. The transaction management thread sends the measurement command to the measurement module;

[0101] 3. After completing the measurement, the measurement module sends the results to the transaction processing module;

[0102] 4. The transaction processing module sends the measurement results to the display module, which stores the measurement results locally.

[0103] (2) Configuration module: receives configuration primitives and completes configuration tasks.

[0104] Bluetooth parameter configuration steps:

[0105] 1. Connect the mobile phone APP to the device;

[0106] 2. The mobile phone sends a configuration command;

[0107] 3. The Bluetooth serial port receives the command, encapsulates it into a message and sends it to the configuration management thread;

[0108] 4. The configuration management thread modifies the configuration;

[0109] 5. Configuration management sends a reply message to the Bluetooth serial port.

[0110] 4G remote configuration operation steps:

[0111] 1. The network side issues a command;

[0112] The 2.4G module receives the configuration command;

[0113] The 3.4G module sends the message to the configuration management module through the serial port;

[0114] 4. The configuration management module updates the configuration.

[0115] (3). Display module: receives display update data and completes display update.

[0116] The display module maintains a list of module attributes. When other modules detect a status change, they modify the attribute list and refresh the displayed information. The display module displays information such as the device's current battery level, signal strength, motor status, and motor displacement. The current battery level is updated in real time through periodic sampling. Signal strength is updated when the device connects to the network at power-up and is acquired. Thereafter, signal strength is acquired and the display is refreshed each time data is sent. Motor status is updated when the status changes. Motor displacement is updated when encoder data changes.

[0117] (4). Measurement module: receives measurement data and completes measurement tasks.

[0118] The module is responsible for 485 sensor measurements. When automatic measurement is enabled, it measures data at specified intervals from the bottom of the hole, as configured by the user, until the sensor reaches the hole mouth. Upon receiving each measurement result, the measurement module signals the completion of the measurement task.

[0119] (5). Motor control module: receives motor control instructions and completes motor control.

[0120] When a "zero adjustment" message is received, the system will control the motor to first lower about 1 meter until the proximity sensor for zero adjustment is detected, and then stop. If the machine becomes stuck during this process, an alert will be sent to the backend. When a "bottoming out" message is received, the system will attempt to lower the machine to the specified depth. If it cannot reach the bottom, it will try to lower it faster, with up to three attempts. If these attempts are still unsuccessful, it will assume that the pipe is stuck and send an alert to the backend. When a "adjust to a specified position" message is received, the system will control the motor to ascend or descend to the specified position. If a jam occurs, an alert will be sent to the backend. When a "stop" message is received, the motor will stop.

[0121] (6).4G communication module: receives 4G communication data and controls data communication.

[0122] The 4G communication module is responsible for network connection, data transmission, and reception. Upon receiving a "Connect to Network" message, the module attempts to connect to the network. If the network connection fails, it re-initiates the network connection. Upon receiving a "Send Data" message, the module sends data. Upon receiving a downlink message, the module analyzes whether it is a configuration message. If so, it converts the message into a message and sends it to the corresponding module.

[0123] (7). Bluetooth communication module: receives Bluetooth communication data and controls Bluetooth communication.

[0124] The Bluetooth communication module, as an independent thread, remains in the Bluetooth client module after system startup, waiting for a server connection. It is responsible for interacting with the Bluetooth module, primarily processing AT commands. When a "send data" command is received, data is sent via the Bluetooth serial port. When a "receive data" command is received, it receives user app messages and identifies whether they are user configuration messages. If so, it forwards the message to the configuration management module.

[0125] (8) Inter-module communication mechanism and design: including Bluetooth communication protocol design and 4G communication protocol design. Bluetooth communication protocol design: the message format is dg+message code+iot, as shown in Table 1.

[0126] Table 1 Bluetooth communication protocol design table

[0127]

[0128]

[0129] 4G communication protocol design:

[0130] The 4G module communicates with the backend via the MQTT protocol, primarily covering four topics: uplinkData, uplinkConfig, downlinkConfig, downlinkReboot, downlinkReset, and downlinkGetConfig. After the system is powered on and connected to the network, it publishes the uplinkConfig topic to report device configuration and subscribes to all downlink topics. Upon completion of automatic measurement, it publishes the uplinkData topic to report measurement information. All messages are in JSON string format.

[0131] 1. The format of the uplinkData topic message is shown in Table 2.

[0132] Table 24G communication protocol uplinkData topic message format

[0133]

[0134]

[0135] 2. The format of the uplinkConfig and downlinkConfig topic messages is shown in Table 3.

[0136] Table 34G communication protocol uplinkConfig, downlinkConfig topic message format

[0137]

[0138] 3. The format of the downlinkReboot topic message is shown in Table 4.

[0139] Table 44G communication protocol downlinkReboot theme message format

[0140]

[0141] 4. The format of the downlinkReset topic message is shown in Table 5;

[0142] Table 54G communication protocol downlinkReset topic message format

[0143]

[0144]

[0145] 5. The format of the downlinkGetConfig topic message is shown in Table 6;

[0146] Table 64G communication protocol downlinkGetConfig topic message format

[0147]

[0148] (9). System algorithm design: including motor drive and speed control algorithm and sensor probe jam detection algorithm.

[0149] Motor drive and speed control algorithm: The reference clock period is generated by the timer, and the period is calculated by the following formula:

[0150] T=(TIM_Period+1)*(TIM_Prescaler+1) / TIMxCLK

[0151] Among them, TIMxCLK is its clock frequency, which is 84MHz, TIM_Prescaler is 83, and TIM_Period is 9. Therefore, T is 10us.

[0152] By adjusting the speed variable speed (the number of T cycles), when the total number of cycles T generated reaches the speed number, the IO drive pin is controlled to flip, thereby controlling the output pulse frequency.

[0153] Sensor probe jam detection algorithm:

[0154] The sensor probe winding passes through the encoder and enters the monitoring hole. Therefore, the device determines whether the probe is stuck by detecting the changes in the encoder within a unit time. The algorithm flow is as follows: Figure 3 shown.

[0155] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fully automated foundation pit deep displacement measurement system, characterized in that: include: Microcontroller unit: used to monitor the stability and deep displacement of the foundation pit; Display module: used to display measurement data and measurement system in real time and provide intuitive data view; Communication module: used to transmit measurement data from the site to the remote monitoring system or data center, upload data to the background monitoring platform and receive instructions; The communication module includes: 4G communication module: used to achieve real-time data transmission and remote monitoring, upload data collected by various sensors in the measurement system to the background monitoring platform in real time and receive instructions; Bluetooth communication module: used for short-distance data transmission and local communication, and for data transmission between sensors and data acquisition devices; Stepper motor controller: used to control the rise and fall of the stepper motor; Encoder: used to accurately measure and record deep displacement and record the position of the stepper motor; Tilt sensor: used to monitor and measure the tilt changes of the structure, monitor the tilt of the structure around the foundation pit in real time, identify potential foundation settlement or structural deformation to assess the stability of the foundation pit and its supporting structure; Proximity sensor: used to detect displacement changes and obstacles deep in the foundation pit; GPS module: used for large-scale foundation pit areas, and provides high-precision location information to accurately measure the displacement of foundation pit boundaries and surrounding facilities; Software architecture: used to provide hardware driver interfaces and control each device to complete specified tasks, while also being responsible for user transactions and fault handling.

2. A fully automated foundation pit deep displacement measurement system according to claim 1, characterized in that: The software architecture includes at least a driver layer, a control layer, and an application layer. The driver layer provides a hardware driver interface, the control layer completes designated tasks by controlling various devices, and the application layer is responsible for user transactions and fault handling.

3. The fully automated foundation pit deep displacement measurement system according to claim 2, characterized in that: The control layer includes a configuration management module, which is used to obtain configuration information, add new configuration information, and modify existing configuration information.

4. The fully automated foundation pit deep displacement measurement system according to claim 1, characterized in that: The stepper motor controller includes an interface for initializing the stepper motor and controlling the stepper motor to rise, fall, and stop.

5. The fully automated foundation pit deep displacement measurement system according to claim 1, characterized in that: The Bluetooth communication module realizes local data interaction and performs data interaction with the background monitoring platform through the 4G communication module.

6. The fully automated foundation pit deep displacement measurement system according to claim 1, characterized in that: The microcontroller unit further comprises: Flash module: used to store data; Encoder module: used to record the displacement of the stepper motor; Button module: used for user operation; Buzzer module: used to emit prompt sound; LED module: used to indicate status.

7. The fully automated foundation pit deep displacement measurement system according to claim 1, characterized in that: The proximity sensor comprises: Abnormal management module: responsible for detecting, analyzing and responding to abnormal situations in the system, ensuring the safety and stability of the foundation pit project, monitoring the deep displacement data of the foundation pit in real time, detecting whether there are abnormal values ​​or changes beyond the normal range, and diagnosing and reporting them.

8. A measurement method for a fully automated foundation pit deep displacement measurement system according to any one of claims 1 to 7, characterized in that: The specific steps include: S1. Initialize the measurement system after power-on. S2. Connect the system device via the Bluetooth communication module for local configuration, and remotely configure device parameters via the 4G communication module; S3. After the system configuration is complete, the system will automatically perform the inclinometer task according to the predetermined measurement cycle; S4. During this process, the motor control module drives the motor up or down to the specified position. The encoder generates pulses to provide real-time feedback on the motor's position, while the tilt sensor collects angle data at each pit measurement point. S5. The tilt sensor collects the angle data of each foundation pit measurement point. The measurement module sends the results to the transaction management module, which is responsible for uploading the data to the background monitoring platform and displaying the measurement results on the local LCD screen.

9. The measurement method of a fully automated foundation pit deep displacement measurement system according to claim 8, characterized in that: During the entire foundation pit displacement measurement process, the configuration management module continuously monitors the system status and adjusts the configuration as needed.

10. The measurement method of a fully automated foundation pit deep displacement measurement system according to claim 8, characterized in that: The system also supports a manual control mode, which triggers the stepper motor controller to control the motor to rise, fall or stop, and start a single manual measurement through the button module.

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