A control method of a buried vibration detector

Abstract

The application provides a control method of a buried vibration detector, belongs to the technical field of vibration detection control, and has a sealed cubic structure and a magnetic keyless design, is waterproof and pressure-resistant, has strong ground burying stability, and has a service life of 0.5 years; time domain-frequency domain joint analysis combined with effective radius calculation can accurately distinguish between personnel, passenger cars and engineering vehicles and reduce misjudgment; a self-adaptive learning formula dynamically corrects a threshold value, adapts to different soil, temperature and humidity environments, and reduces the false report rate; standardized switching on and off and timing data uploading prolong the endurance and meet long-term unattended monitoring; positioning and transmission are stable: Beidou and GPS dual-mode positioning and cellular network positioning are accurate under a ground burying environment, and data transmission is uninterrupted; the background can realize real-time viewing of the state and historical records, and the operation and maintenance efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the field of vibration detection control technology, and specifically relates to a control method for a buried vibration detector. Background Technology

[0002] Existing buried vibration monitoring equipment generally suffers from poor environmental adaptability, high false alarm rates, and low target identification accuracy. Traditional buried vibration monitoring equipment mostly uses fixed thresholds to trigger alarms, and cannot adaptively adjust parameters according to actual scenarios such as soil medium, temperature and humidity, and surrounding interference. At the same time, the processes of power-on / off, positioning verification, and data uploading of buried vibration monitoring equipment lack standardized control logic, resulting in excessive power consumption, positioning failure, and data transmission interruption. In addition, existing equipment has not established a complete time-domain and frequency-domain joint analysis model for vibration signals, making it difficult to accurately distinguish between different targets such as personnel, passenger vehicles, and engineering vehicles. Furthermore, the structural sealing performance and installation stability of buried vibration monitoring equipment are insufficient, affecting the long-term monitoring reliability.

[0003] To address the aforementioned shortcomings, this invention proposes a control method for a buried vibration detector that features adaptive learning, accurate target recognition, low power consumption control, and integrated structural protection. This method solves the problems of poor scenario adaptability, false alarms and missed alarms, high power consumption, and low structural reliability in existing technologies. Summary of the Invention

[0004] This invention addresses the core shortcomings of existing buried vibration detectors through structural optimization and standardized control methods, namely, the control method for buried vibration detectors. It is applicable to various buried vibration monitoring scenarios such as security, border areas, factories, and pipelines.

[0005] The present invention employs the following technical solution.

[0006] A control method for a buried vibration detector includes:

[0007] Step 1: Construct the buried vibration detector equipment and install its structure;

[0008] Step 2: After the structural installation of the buried vibration detector equipment is completed, the buried vibration detector equipment is powered on.

[0009] Step 3: After powering on the buried vibration detector, perform the positioning and initialization of the buried vibration detector.

[0010] Step 4: After locating and initializing the buried vibration detector, the buried vibration detector will collect and calculate vibration signals.

[0011] Step 5: The buried vibration detector equipment determines the target type based on the effective monitoring radius;

[0012] Step 6: After the buried vibration detector determines the target type, it triggers an alarm and uploads the data.

[0013] Step 7: The buried vibration detector device performs adaptive learning and correction in real time;

[0014] Step 8: The buried vibration detector equipment shall be shut down when necessary.

[0015] Furthermore, in step 1, the constructed underground vibration detector device is a cubic sealed structure, and the entire cubic sealed structure is made of waterproof and pressure-resistant material;

[0016] The top cover of the cubic sealing structure is sealed to the main body of the top opening of the cubic sealing structure;

[0017] The cubic sealing structure is equipped with the following components:

[0018] The magnetic switch module is located in a designated area on the top surface of the buried vibration detector device, which is the designated area on the top surface of the cubic sealed structure. It has a built-in magnetic induction unit, no physical buttons, and improves the sealing performance.

[0019] The dual indicator light module is located on the front of the cubic sealed structure. The green light of the dual indicator light module is on the left side of the front of the cubic sealed structure, while the red light of the dual indicator light module is on the right side of the front of the cubic sealed structure.

[0020] The vibration sensing unit is located at the center of the equipment, that is, at the center of the cubic sealed structure, and is used to collect ground-transmitted vibration signals.

[0021] Temperature sensor, which is located inside the device;

[0022] The positioning unit integrates a Beidou + GPS dual-mode positioning module and is located inside the device, that is, inside the cubic sealed structure.

[0023] The cellular transmission unit, which uses a 4G / 5G cellular network and is located inside the device, enables remote data uploading.

[0024] The main control unit, which uses a microprocessor and is located inside the device;

[0025] The power supply unit uses a disposable power supply module and is located inside the equipment;

[0026] The magnetic power switch module, dual indicator light module, vibration sensing unit, temperature sensor, cellular transmission unit, and positioning unit are all connected to the main control unit; the main control unit is connected to the power supply unit.

[0027] Furthermore, the method for structural installation of the buried vibration detector device in step 1 specifically includes:

[0028] The buried vibration detector is placed underground with its top cover 10mm below the ground level to ensure that the buried vibration detector is placed horizontally.

[0029] Furthermore, step 2 specifically includes:

[0030] At the magnetic power switch position on the top of the buried vibration detector, hold the magnetic switch for 5 seconds, and the green light on the left will illuminate for 3 seconds to confirm that the buried vibration detector is powered on.

[0031] Furthermore, in step 2, the user places the permanent magnet in the magnetic switch marking area on the top surface of the buried vibration detector. The magnetic switch detects the external magnetic field and outputs a low-level trigger signal to the main control unit. The main control unit polls and samples this low-level trigger signal, starts a timer, and increments the timer while the magnetic field is present. When the magnetic field is interrupted, the timer is reset to zero. When the timer reaches 5 seconds, the main control unit determines that it is a valid power-on command and executes the power-on process. After successful power-on, the main control drive green light stays on for 3 seconds and then turns off, entering normal monitoring status.

[0032] Furthermore, step 3 specifically includes:

[0033] After the buried vibration detector device is powered on, the positioning unit is automatically started to perform positioning. After successful positioning, the main control unit controls the red and green lights to flash for 3 seconds to complete the positioning verification. Then the main control unit activates the cellular transmission unit to establish a data transmission link.

[0034] Furthermore, step 4 specifically includes:

[0035] The vibration sensing unit collects ground vibration signals at a fixed frequency. It is then transmitted to the main control unit to generate a discrete sequence of ground vibration signals;

[0036] The main control unit transmits ground vibration signals. Substitute into Formula 1 to calculate the time-domain energy of the signal. This is used to distinguish effective signals from environmental noise;

[0037] The main control unit transmits ground vibration signals. Substitute into Formula 2 to calculate the power spectral density in the frequency domain and extract the target characteristic frequency.

[0038] Furthermore, in step 4, formula 1 is:

[0039] ;

[0040] In this formula, The energy per unit time of the vibration signal; This represents the total number of sampling points for the vibration signal per unit time. For the first Vibration amplitude at each sampling point , The intensity of the vibration signal;

[0041] Formula 2 is:

[0042] ;

[0043] In this formula, for In frequency Power spectral density at frequency The formula for obtaining is: , The sampling frequency of the vibration sensing unit; The imaginary unit;

[0044] The method for extracting target feature frequencies is as follows: The frequency corresponding to the maximum value This is the target characteristic frequency.

[0045] Furthermore, in step 5, formula 3 is applied to calculate the effective monitoring radius of the current environment. Formula 3 is;

[0046] ;

[0047] In this formula, The effective monitoring radius under the current environment; For standard monitoring radius, It is 50m; This is the reference signal strength under standard conditions; The real-time operating temperature of the buried vibration detector device is collected by the temperature sensor and transmitted to the main control unit. Standard ambient temperature, It is 25℃;

[0048] The method for determining the target type is as follows:

[0049] exist , ≤30m, target characteristic frequency Within the range of 20Hz to 80Hz and At that time, the target type was determined to be personnel intrusion;

[0050] exist 30m ≤50m, target characteristic frequency Within the range of 10Hz to 50Hz and At that time, the target type was determined to be vehicle intrusion; among which The latest judgment threshold, This is the noise threshold.

[0051] Furthermore, step 6 specifically includes:

[0052] Once the buried vibration detector identifies the target type, it immediately activates an alarm. The main control unit transmits the target type, location data collected by the positioning unit, current time, and vibration signal intensity to the background monitoring platform connected to the cellular transmission unit via the cellular transmission unit. The background monitoring platform can then view the device status and alarm information in real time.

[0053] Furthermore, step 7 specifically includes:

[0054] The buried vibration detector equipment uses Formula 4 to update the judgment threshold in real time. Formula 4 is;

[0055] ;

[0056] In this formula, The latest alarm threshold after adaptive learning; The original alarm threshold; It is a time variable; The learning rate factor is set. This is the starting time of integration, which is the statistical start time of this threshold update, and also the time when the previous threshold update was completed. The integration end time is the statistical end time of this judgment threshold update, which is also the time when the judgment threshold calculation begins. This represents the rate of change of signal strength over time.

[0057] Furthermore, step 8 specifically includes:

[0058] When the buried vibration detector needs to be shut down, the magnetic switch on the top of the device will be held for 15 seconds, and the red light on the right side will illuminate for 3 seconds, at which point the device will shut down.

[0059] The beneficial effects of the present invention are as follows, compared with the prior art:

[0060] This invention features a sealed cubic structure, a magnetic, buttonless design, waterproof and pressure-resistant construction, strong underground stability, and a service life of up to 0.5 years. Time-domain and frequency-domain joint analysis combined with effective radius calculation accurately distinguishes between personnel, passenger vehicles, and engineering vehicles, reducing false alarms. An adaptive learning formula dynamically corrects thresholds, adapting to different soil types and temperature / humidity environments, further reducing false alarm rates. Standardized power on / off and timed data uploads extend battery life and meet the requirements for long-term unattended monitoring. Stable positioning and transmission are achieved through BeiDou + GPS dual-mode positioning and cellular networks, ensuring accurate positioning and uninterrupted data transmission even in underground environments. Real-time status and historical records can be viewed in the background, improving operational efficiency. Attached Figure Description

[0061] Figure 1 This is a partial flowchart illustrating the control method of the buried vibration detector in this invention. Detailed Implementation

[0062] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this invention. The embodiments described in this application are merely some embodiments of this invention, and not all embodiments. Based on the spirit of this invention, other embodiments obtained by those skilled in the art without creative effort are all within the protection scope of this invention.

[0063] like Figure 1 As shown, this invention proposes a control method for a buried vibration detector, comprising the following steps:

[0064] Step 1: Construct the buried vibration detector equipment and install its structure;

[0065] In a preferred but non-limiting embodiment of the present invention, in step 1, the constructed buried vibration detector device is a cubic sealed structure. The cubic sealed structure is made of waterproof and pressure-resistant material, and the structure has clear layers.

[0066] The top cover of the cubic sealing structure is sealed to the main body of the top opening of the cubic sealing structure;

[0067] The cubic sealing structure is equipped with the following components:

[0068] The magnetic switch module is located in a designated area on the top surface of the buried vibration detector device, which is the designated area on the top surface of the cubic sealed structure. It has a built-in magnetic induction unit, no physical buttons, and improves the sealing performance.

[0069] The dual indicator light module is located on the front of the cubic sealed structure. The green light of the dual indicator light module is on the left side of the front of the cubic sealed structure, and the red light of the dual indicator light module is on the right side of the front of the cubic sealed structure. It is independently packaged and used for status indication.

[0070] The vibration sensing unit is located at the center of the equipment, that is, at the center of the cubic sealed structure, and is used to collect ground-transmitted vibration signals.

[0071] Temperature sensor, which is located inside the device;

[0072] The positioning unit integrates a Beidou + GPS dual-mode positioning module and is located inside the device, that is, inside the cubic sealed structure, to ensure positioning accuracy after burial.

[0073] The cellular transmission unit, which uses a 4G / 5G cellular network and is located inside the device, enables remote data uploading.

[0074] The main control unit, which uses a microprocessor and is located inside the device, is responsible for signal analysis, adaptive learning, alarm determination, and status control.

[0075] The power supply unit uses a disposable power supply module located inside the equipment, ensuring continuous operation of the buried vibration detector for 0.5 years after startup.

[0076] The magnetic power switch module, dual indicator light module, vibration sensing unit, temperature sensor, cellular transmission unit, and positioning unit are all connected to the main control unit; the main control unit is connected to the power supply unit.

[0077] In a preferred but non-limiting embodiment of the present invention, the method for structural installation of the buried vibration detector device in step 1 specifically includes:

[0078] The buried vibration detector is buried underground with its top cover 10mm below the ground surface to ensure that the buried vibration detector is placed horizontally. The top cover, which acts as a sealing cover, is tightly closed to prevent soil and moisture from entering.

[0079] In other words, the installation requirement for the buried vibration detector equipment is that the top cover is 10mm from the ground to ensure monitoring sensitivity and structural stability.

[0080] For example, the waterproof and pressure-resistant material can be made of high-strength pressure-resistant material with an IP68 waterproof rating, preferably one of reinforced nylon PA66+30% glass fiber, PC / ABS alloy or SMC composite material; the external dimensions of the cubic sealing structure are 192mm in length, 192mm in width and 188mm in height; the magnetic switch module can be a reed switch, and the magnetic induction unit is a reed; the vibration sensing unit can be a vibration sensor.

[0081] Step 2: After the structural installation of the buried vibration detector equipment is completed, the buried vibration detector equipment is powered on.

[0082] In a preferred but non-limiting embodiment of the present invention, step 2 specifically includes:

[0083] At the magnetic power switch position on the top of the buried vibration detector, hold the magnetic switch for 5 seconds, and the green light on the left will illuminate for 3 seconds to confirm that the buried vibration detector is powered on and has entered the initialization state.

[0084] In a preferred but non-limiting embodiment of the present invention, in step 2, the user places the permanent magnet in the magnetic switch marking area on the top surface of the buried vibration detector device. The magnetic switch detects the external magnetic field and outputs a low-level trigger signal to the main control unit. The main control unit polls and samples the low-level trigger signal, starts a timer, and accumulates the timer count while the magnetic field is present. When the magnetic field is interrupted, the timer counts down to zero. When the timer counts down for 5 seconds (5000ms), the main control unit determines that it is a valid power-on command and executes the power-on process, namely, initializing the vibration sensing unit, the cellular transmission unit, and the positioning unit. After successful power-on, the main control drive green light stays on for 3 seconds (3000ms) and then turns off, entering the normal monitoring state.

[0085] Therefore, when the user places a permanent magnet on the top magnetic switch position of the buried vibration detector and maintains continuous magnetic attraction for 5 seconds, the magnetic switch converts the magnetic field signal into an electrical signal and transmits it to the main control unit. After the main control unit confirms that the trigger duration meets the power-on threshold through a timer, it controls the power supply unit to start the power supply of the whole machine and complete the system initialization. At the same time, the main control unit drives the green indicator light on the left to stay lit for 3 seconds and then turn off to confirm that the buried vibration detector has been successfully powered on.

[0086] Step 3: After powering on the buried vibration detector, perform the positioning and initialization of the buried vibration detector.

[0087] In a preferred but non-limiting embodiment of the present invention, step 3 specifically includes:

[0088] After the buried vibration detector device is powered on, the positioning unit is automatically started to perform positioning. After successful positioning, the main control unit controls the red and green lights to flash for 3 seconds to complete the positioning verification. Then the main control unit activates the cellular transmission unit to establish a data transmission link.

[0089] Step 4: After locating and initializing the buried vibration detector, the buried vibration detector will collect and calculate vibration signals.

[0090] In a preferred but non-limiting embodiment of the present invention, step 4 specifically includes:

[0091] The vibration sensing unit collects ground vibration signals at a fixed frequency. It is then transmitted to the main control unit to generate a discrete sequence of ground vibration signals;

[0092] The main control unit transmits ground vibration signals. Substitute into Formula 1 to calculate the time-domain energy of the signal. This is used to distinguish effective signals from environmental noise;

[0093] The main control unit transmits ground vibration signals. Substitute into Formula 2 to calculate the power spectral density in the frequency domain and extract the target characteristic frequency.

[0094] In a preferred but non-limiting embodiment of the present invention, in step 4, formula 1 is:

[0095] ;

[0096] In this formula, The energy per unit time of the vibration signal; This represents the total number of sampling points for the vibration signal per unit time. For the first Vibration amplitude at each sampling point , The intensity of the vibration signal;

[0097] Formula 2 is:

[0098] ;

[0099] In this formula, for In frequency Power spectral density at frequency The formula for obtaining is: , The sampling frequency of the vibration sensing unit; The imaginary unit;

[0100] The method for extracting target feature frequencies is as follows: The frequency corresponding to the maximum value This is the target characteristic frequency.

[0101] Step 5: The buried vibration detector equipment determines the target type based on the effective monitoring radius;

[0102] In a preferred but non-limiting embodiment of the present invention, in step 5, formula 3 is applied to calculate the effective monitoring radius of the current environment. Formula 3 is;

[0103] ;

[0104] In this formula, The effective monitoring radius under the current environment; For standard monitoring radius, It is 50m; This is the reference signal strength under standard conditions; The real-time operating temperature of the buried vibration detector device is collected by the temperature sensor and transmitted to the main control unit. Standard ambient temperature, It is 25℃;

[0105] The method for determining the target type is as follows:

[0106] exist , ≤30m, target characteristic frequency Within the range of 20Hz to 80Hz and At that time, the target type was determined to be personnel intrusion;

[0107] exist 30m ≤50m, target characteristic frequency Within the range of 10Hz to 50Hz and At that time, the target type was determined to be vehicle intrusion; among which This is the latest judgment threshold, and its initial value is set according to specific requirements. This is the noise threshold.

[0108] It should be noted that the average vibration signal intensity collected when the buried vibration detector equipment is newly installed and there are no people, vehicles, wind, or other vibrations around it; The setup method is as follows: When the buried vibration detector is newly installed and there are no people, vehicles, wind, or other vibrations nearby, the vibration sensing unit continuously collects vibration signals for 1 minute. Then, the arithmetic mean of the vibration amplitude of the 1-minute ground vibration signal is calculated. This arithmetic mean is the reference signal intensity under standard conditions. .

[0109] Furthermore, noise threshold The method for obtaining the value is as follows: Under pure environmental noise conditions with no personnel or vehicles, the vibration sensing unit continuously collects vibration signals for ≥10 minutes and transmits them to the main control unit. The main control unit then uses the formula described above to determine the value of the collected vibration signals. Calculate the mean square energy of this pure noise segment, and use it as the average noise energy. Therefore, take =1.5× ,when < When it is, it is determined to be environmental noise; when ≥ If the signal is deemed valid, it will proceed to target type identification.

[0110] Step 6: After the buried vibration detector determines the target type, it triggers an alarm and uploads the data.

[0111] In a preferred but non-limiting embodiment of the present invention, step 6 specifically includes:

[0112] Once the buried vibration detector identifies the target type, it immediately activates an alarm. The main control unit transmits the target type, location data collected by the positioning unit, current time, and vibration signal intensity to the background monitoring platform connected to the cellular transmission unit via the cellular transmission unit. The background monitoring platform can then view the device status and alarm information in real time.

[0113] It should be noted that the backend monitoring platform can be a computer.

[0114] Step 7: The buried vibration detector device performs adaptive learning and correction in real time;

[0115] In a preferred but non-limiting embodiment of the present invention, step 7 specifically includes:

[0116] The buried vibration detector equipment uses Formula 4 to update the judgment threshold in real time. To reduce the probability of false alarms and false alarms, and to adapt to different soil, temperature and humidity scenarios, Formula 4 is;

[0117] ;

[0118] In this formula, The latest alarm threshold after adaptive learning; The original alarm threshold is the previous judgment threshold that the buried vibration detector device was using before this update. It is a time variable; The learning rate factor is set to control how fast the judgment threshold is updated, and it is a fixed small constant (such as 0.1 to 1). This is the starting time of integration, which is the statistical start time of this threshold update, and also the time when the previous threshold update was completed. The integration end time is the statistical end time of this judgment threshold update, which is also the time when the judgment threshold calculation begins. It represents the rate of change of signal strength over time, indicating how fast the vibration intensity changes over time, and reflecting the fluctuation of environmental noise and changes in interference intensity.

[0119] It should be noted that, That is to arrive The vibration signal intensities acquired at each time point are arranged in chronological order. The least squares method is used to fit a fitting function with time as the independent variable and vibration signal intensity as the dependent variable, and the derivative of the function with respect to time is obtained.

[0120] Step 8: The buried vibration detector equipment shall be shut down when necessary.

[0121] In a preferred but non-limiting embodiment of the present invention, step 8 specifically includes:

[0122] When the buried vibration detector needs to be shut down after being powered on, the magnetic switch on the top of the device will be held for 15 seconds, and the red light on the right side will illuminate for 3 seconds. This will shut down the device, stop all operations, and reduce power consumption.

[0123] It should be noted that in step 8, when the buried vibration detector needs to be shut down after being powered on, the user places the permanent magnet in the magnetic switch marking area on the top surface of the buried vibration detector. The magnetic switch detects the external magnetic field and outputs a low-level trigger signal to the main control unit. The main control unit polls and samples this low-level trigger signal and starts a timer. The timer increments while the magnetic field is present and resets when the magnetic field is interrupted. When the timer reaches 15 seconds (15000ms), the main control unit determines it as a valid shutdown command and executes the shutdown process, i.e., the red light driven by the main control unit stays on for 3 seconds (3000ms) and then turns off, thus shutting down the buried vibration detector, stopping all operations, and reducing power consumption.

[0124] In short, this invention uses magnetic triggering to power on / off; a green light indicates power on, and a red light indicates power off. Upon power-on, dual-mode positioning is automatically initiated; upon successful positioning, both lights flash. The vibration sensing unit continuously collects signals and transmits them to the main control unit. The main control unit calculates the signal's time-domain energy and frequency-domain power spectral density; it then uses the effective radius formula to determine the target type and distance. If a threshold is met, an alarm is triggered and uploaded to the backend via the cellular network. The alarm threshold is adjusted based on historical data and environmental changes. Device status, monitoring data, and alarm records are uploaded daily at set intervals.

[0125] The beneficial effects of the present invention are as follows, compared with the prior art:

[0126] This invention features a sealed cubic structure, a magnetic, buttonless design, waterproof and pressure-resistant construction, strong underground stability, and a service life of up to 0.5 years. Time-domain and frequency-domain joint analysis combined with effective radius calculation accurately distinguishes between personnel, passenger vehicles, and engineering vehicles, reducing false alarms. An adaptive learning formula dynamically corrects thresholds, adapting to different soil types and temperature / humidity environments, further reducing false alarm rates. Standardized power on / off and timed data uploads extend battery life and meet the requirements for long-term unattended monitoring. Stable positioning and transmission are achieved through BeiDou + GPS dual-mode positioning and cellular networks, ensuring accurate positioning and uninterrupted data transmission even in underground environments. Real-time status and historical records can be viewed in the background, improving operational efficiency.

[0127] It should be recognized that embodiments of the present invention may be implemented or carried out by computer hardware, a combination of hardware and software, or by computer instructions stored in a non-transitory computer-readable storage medium.

[0128] The method can be implemented using standard programming techniques, including a non-transitory computer-readable storage medium configured with a computer program in the computer program, wherein the storage medium is configured such that the computer operates in a specific and predefined manner.

[0129] Each program can be implemented in a high-level procedural or object-oriented programming language to communicate with the computer system; however, if required, the program can be implemented in assembly or machine language.

[0130] In any case, the language can be either compiled or interpreted.

[0131] Furthermore, for this purpose, the program can run on programmed application-specific integrated circuits.

[0132] The processes described herein (or variations and / or combinations thereof) can be executed under the control of one or more computer systems configured with executable instructions, and can be implemented by hardware or a combination thereof as code (e.g., executable instructions, one or more computer programs, or one or more applications) that commonly executes on one or more processors. The computer program includes a plurality of instructions executable by one or more processors.

[0133] Furthermore, the method can be implemented in any suitable computing platform, including but not limited to personal computers, minicomputers, mainframes, workstations, networked or distributed computing environments, standalone or integrated computer platforms, or in communication with charged particle tools or other imaging devices.

[0134] Various aspects of the present invention can be implemented in machine-readable code stored on a non-transitory storage medium or device, whether portable or integrated into a computing platform, such as a hard disk, optical read and / or write storage medium, RAM, ROM, etc., such that it can be read by a programmable computer, and when the storage medium or device is read by the computer, it can be used to configure and operate the computer to perform the processes described herein.

[0135] Furthermore, machine-readable code, or parts thereof, can be transmitted via wired or wireless networks.

[0136] When such media includes instructions or programs that combine with a microprocessor or other data processor to implement the steps described above, the invention described herein includes these and other different types of non-transitory computer-readable storage media.

[0137] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A control method for a buried vibration detector, characterized in that, include: Step 1: Construct the buried vibration detector equipment and install its structure; Step 2: After the structural installation of the buried vibration detector equipment is completed, the buried vibration detector equipment is powered on. Step 3: After powering on the buried vibration detector, perform the positioning and initialization of the buried vibration detector. Step 4: After locating and initializing the buried vibration detector, the buried vibration detector will collect and calculate vibration signals. Step 5: The buried vibration detector equipment determines the target type based on the effective monitoring radius; Step 6: After the buried vibration detector determines the target type, it triggers an alarm and uploads the data. Step 7: The buried vibration detector device performs adaptive learning and correction in real time; Step 8: The buried vibration detector equipment shall be shut down when necessary.

2. The control method of the in-ground seismic detector according to claim 1, characterized by, In step 1, the constructed underground vibration detector device is a cubic sealed structure, and the entire cubic sealed structure is made of waterproof and pressure-resistant material; The top cover of the cubic sealing structure is sealed to the main body of the top opening of the cubic sealing structure; The cubic sealing structure is equipped with the following components: The magnetic switch module is located in a designated area on the top surface of the buried vibration detector device, which is the designated area on the top surface of the cubic sealed structure. It has a built-in magnetic induction unit, no physical buttons, and improves the sealing performance. The dual indicator light module is located on the front of the cubic sealed structure. The green light of the dual indicator light module is on the left side of the front of the cubic sealed structure, while the red light of the dual indicator light module is on the right side of the front of the cubic sealed structure. The vibration sensing unit is located at the center of the equipment, that is, at the center of the cubic sealed structure, and is used to collect ground-transmitted vibration signals. Temperature sensor, which is located inside the device; The positioning unit integrates a Beidou + GPS dual-mode positioning module and is located inside the device, that is, inside the cubic sealed structure. The cellular transmission unit, which uses a 4G / 5G cellular network and is located inside the device, enables remote data uploading. The main control unit, which uses a microprocessor and is located inside the device; The power supply unit uses a disposable power supply module and is located inside the equipment; The magnetic power switch module, dual indicator light module, vibration sensing unit, temperature sensor, cellular transmission unit, and positioning unit are all connected to the main control unit; the main control unit is connected to the power supply unit.

3. The control method of the in-ground seismic detector according to claim 2, characterized by, The method for structural installation of the buried vibration detector equipment in step 1 specifically includes: The buried vibration detector is placed underground with its top cover 10mm below the ground level to ensure that the buried vibration detector is placed horizontally.

4. The control method of the in-ground seismic detector according to claim 3, wherein Step 2 specifically includes: At the magnetic power switch position on the top of the buried vibration detector, the magnetic attraction lasts for 5 seconds, and the green light on the left side lights up for 3 seconds to confirm that the buried vibration detector is powered on. In step 2, the user places the permanent magnet in the magnetic switch marking area on the top surface of the buried vibration detector. The magnetic switch detects the external magnetic field and outputs a low-level trigger signal to the main control unit. The main control unit polls and samples this low-level trigger signal, starts a timer, and increments the timer while the magnetic field is present. When the magnetic field is interrupted, the timer is reset to zero. When the timer reaches 5 seconds, the main control unit determines that it is a valid power-on command and executes the power-on process. After successful power-on, the main control drive green light stays on for 3 seconds and then turns off, entering normal monitoring mode.

5. The control method of the in-ground seismic detector according to claim 4, characterized by, Step 3 specifically includes: After the buried vibration detector device is powered on, the positioning unit is automatically started to perform positioning. After successful positioning, the main control unit controls the red and green lights to flash for 3 seconds to complete the positioning verification. Then the main control unit activates the cellular transmission unit to establish a data transmission link.

6. The control method of the in-ground seismic detector according to claim 5, wherein Step 4 specifically includes: The vibration sensing unit collects the ground vibration signal at a fixed frequency and transmits to the main control unit to generate a discrete sequence of ground vibration signal; The main control unit transmits ground vibration signals. Substitute into Formula 1 to calculate the time-domain energy of the signal. This is used to distinguish effective signals from environmental noise; The main control unit transmits ground vibration signals. Substitute into Formula 2 to calculate the power spectral density in the frequency domain and extract the target characteristic frequency; In step 4, formula 1 is: ； In this formula, The energy per unit time of the vibration signal; This represents the total number of sampling points for the vibration signal per unit time. For the first Vibration amplitude at each sampling point , The intensity of the vibration signal; Formula 2 is: ； In this formula, for In frequency Power spectral density at frequency The formula for obtaining is: , The sampling frequency of the vibration sensing unit; The imaginary unit; The method for extracting the target characteristic frequency is: The frequency corresponding to the maximum value of the characteristic frequency That is, the target characteristic frequency.

7. The control method for the buried vibration detector according to claim 6, characterized in that, In step 5, the effective monitoring radius for the current environment is calculated using equation 3 Equation 3 is; ； In this formula, The effective monitoring radius under the current environment; For standard monitoring radius, It is 50m; This is the reference signal strength under standard conditions; The real-time operating temperature of the buried vibration detector device is collected by the temperature sensor and transmitted to the main control unit. Standard ambient temperature, It is 25℃; The method for determining the target type is as follows: exist , ≤30m, target characteristic frequency Within the range of 20Hz to 80Hz and At that time, the target type was determined to be personnel intrusion; In , 30m ≤ 50m, target characteristic frequency in the range of 10Hz~50Hz and , determine the target type as vehicle intrusion; wherein is the latest judgment threshold, is the noise threshold.

8. The control method of the in-ground seismic detector according to claim 7, characterized by, Step 6 specifically includes: After the buried vibration detector identifies the target type, it activates an alarm in real time. The main control unit transmits the target type, location data collected by the positioning unit, current time, and vibration signal intensity to the background monitoring platform connected to the cellular transmission unit via the cellular transmission unit. The background monitoring platform can then view the device status and alarm information in real time.

9. The control method of the in-ground seismic detector according to claim 8, wherein Step 7 specifically includes: The buried vibration detector device applies formula 4 to update the judgment threshold in real time , formula 4 is; ； In this formula, The latest alarm threshold after adaptive learning; The original alarm threshold; It is a time variable; The learning rate factor is set. This is the starting time of integration, which is the statistical start time of this threshold update, and also the time when the previous threshold update was completed. The integration end time is the statistical end time of this judgment threshold update, which is also the time when the judgment threshold calculation begins. This represents the rate of change of signal strength over time.

10. The control method for the buried vibration detector according to claim 9, characterized in that, Step 8 specifically includes: When the buried vibration detector needs to be shut down, the magnetic switch on the top of the device will be held for 15 seconds, and the red light on the right side will illuminate for 3 seconds, at which point the device will shut down.

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