43 results about "Sound level meter" patented technology

The application discloses a kind of for multi-scene adaptive power equipment intelligent inspection system, it is related to power equipment inspection field, wherein scene voiceprint modeling module is generated by laser radar scanning scene three-dimensional model and labels equipment identity data, and audio signal is collected to equipment, after extracting spectral feature, it is clustered, and it is constructed initial voiceprint model to remove anomaly;Adaptive learning module obtains real-time temperature with temperature sensor, calculates temperature influence coefficient and correction value, and obtains voiceprint baseline model by correcting initial model and is regularly updated;Inspection positioning module obtains the coordinates and attitude of inspection equipment, calculates its distance with equipment, azimuth angle, and generates predicted synthetic voiceprint data according to formula;Abnormality identification module compares real-time voiceprint data with prediction data, and identifies anomaly outside fluctuation range, and controls inspection equipment to move positioning abnormal equipment according to distance.The system solves the problem of multi-device sound source interference and temperature influence, and improves the reliability and abnormal positioning efficiency of inspection.

The invention provides a vibration noise detection device and method of a wall breaking machine, and mainly relates to the field of vibration noise detection. A vibration noise detection device of a wall breaking machine comprises a positioning mechanism arranged in a detection chamber and a plurality of noise detection mechanisms, coaxial placement and height adjustment of the wall breaking machine are achieved through clamping and positioning of the positioning mechanism, and the wall breaking machine can be located at the detection height on different workbenches. At least four noise detection mechanisms are arranged, each noise detection mechanism comprises a supporting arm, a supporting cavity is formed in the inner side of the front end of each supporting arm, a telescopic arm is arranged on each supporting cavity in a sliding mode, and a sound level meter and a distance sensor are arranged at the front end of each telescopic arm. The invention has the following beneficial effects: the invention creatively provides a structure and a method for respectively detecting noise by a plurality of workbenches, so that the noise intensity of the wall breaking machine in the daily use process can be more reasonably represented.

The invention relates to the technical field of sound insulation performance testing, and discloses a portable sound insulation performance testing device and a testing method thereof.The portable sound insulation performance testing device comprises a box body, a supporting assembly, a sound production unit, a sound level meter assembly and a dynamic signal tester; the supporting assembly is installed on the box body, a plate to be tested is installed on the supporting assembly, and the box body is divided into a sound source chamber and a receiving chamber; the sound production unit is mounted in the sound source chamber; the sound source chamber and the receiving chamber are internally provided with sound level meter assemblies used for collecting noise signals. And the dynamic signal tester is arranged outside the box body, is connected with the sound level meter assembly through a high-speed signal line assembly, and is used for receiving a signal of the sound level meter assembly. The device is simple in principle, convenient to install and easy to operate, the sound insulation testing efficiency can be greatly improved, and the testing energy consumption and cost are reduced.

This invention discloses an active coupling cavity device and calibration method for calibrating a standard microphone. A sound source adapter is located at the signal input end of the active coupling cavity. A multi-channel sound field distribution structure is located within the active coupling cavity, comprising eight acoustic channels evenly distributed circumferentially along the central axis of the active coupling cavity. A symmetrical clamping assembly constrains the reference microphone and the microphone under test to be symmetrical about the central axis of the active coupling cavity. A coaxiality test ring assembly rigidly constrains the axes of the reference microphone and the microphone under test to coincide with the central axis of the active coupling cavity. The calibration test system includes a signal generator, a sound level meter under test, a preamplifier, a measurement amplifier, a bandpass filter, and a digital voltmeter. The multi-channel uniformly distributed sound field structure solves the problem of uneven sound pressure distribution caused by unidirectional input, and the symmetrical clamping assembly and the coaxiality test ring assembly respectively solve the problem of poor consistency in low-frequency and high-frequency phase measurements.

System for detecting a leak in a water supply system, in particular a water supply system in a building, wherein several consumers can be supplied with water from the water supply system (8) and wherein each of the several consumers, when drawing water from the water supply system (8) - active consumer - emits sound into the water supply system (8), comprising: a flow measuring unit (3) designed to be attached to a supply line (5) of the water supply system (8) and to measure an actual flow rate through the supply line (5), a sound measuring unit (4) designed for attachment to the supply line (5) of the water supply system (8), for measuring sound in the water supply system (8) and for outputting sound measurement values ​​based on measured sound, wherein the sound measuring unit (4) is designed for detecting structure-borne sound, a sound evaluation unit (11) designed to detect active consumers based on sound measurement values, an estimation unit (12) designed to determine an estimated flow rate from the active consumers detected by the sound evaluation unit (11), and an evaluation unit (14) which is trained to compare the actual flow rate with the estimated flow rate and to detect a leak in the water supply system (8) based on a comparison result.

The utility model relates to the technical field of tire mute cotton, and provides an automobile tire mute cotton noise reduction effect static detection device which comprises a sound insulation bin, a bin cover and a noise display, the bin cover is hinged to the sound insulation bin through a hinge, and sound insulation cotton is fixedly installed on the inner wall of the sound insulation bin and one side of the bin cover. A sound level meter and an acrylic box are arranged in the sound insulation bin, the acrylic box is located on one side of the sound level meter, the sound insulation bin, a bin cover and sound insulation cotton are arranged, so that the sound level meter and the acrylic box can be located in a completely-closed space, and then different types of road noise are simulated through a loudspeaker; and then the sound intensity is measured through the sound level meter and is displayed on the noise display, so that the noise level when the mute cotton is installed or not installed can be measured and recorded, meanwhile, equipment such as the sound level meter can be prevented from being interfered by the outside, fine noise changes can be accurately captured, and the accuracy of a test result is effectively improved.

The invention provides an audio data processing method and system, electronic equipment and a storage medium, and the method comprises the steps: calling audio collection equipment to carry out the collection of biological sound audio, so as to obtain to-be-processed audio data; segmenting the audio data to be processed into a plurality of audio clips; calculating a cumulative percentage sound level of the audio clip; calculating the signal-to-noise ratio of the audio clip by using the cumulative percentage sound level; and according to the signal-to-noise ratio of the audio clip, identifying an effective audio clip from the plurality of audio clips. According to the scheme, the collected audio data to be processed are segmented into the plurality of audio clips; the signal-to-noise ratio of the audio clip is quickly calculated through the accumulated percentage sound level of the audio clip, and then the effective audio clip is identified from the plurality of audio clips according to the signal-to-noise ratio, so that the automatic audit of the audio is realized, and the audio audit efficiency and the audio audit accuracy are improved.

The utility model relates to the field of nylon strip detection, in particular to a new material modified nylon strip sound insulation performance testing device which comprises a sound insulation box, a box cover, a locking part, a sound insulation felt, a mounting plate, a fixing block, a sounder and the like, a box cover is hinged to the top of the soundproof box, a locking part is arranged on the front side of the box cover, the end of the locking part is locked on the front side of the soundproof box, soundproof felts are glued to all the end faces in the soundproof box and the box cover, mounting plates are arranged on the two sides of the inner bottom of the soundproof box, fixing blocks are slidably arranged on the mounting plates, and the fixing blocks are connected with the soundproof box. And a sounder is clamped on the fixed block on one side. According to the utility model, the sound generator and the sound level meter are arranged at relative positions, so that repeated testing can be carried out under the same condition, the accuracy and repeatability of testing results are improved, and accurate measurement of sound insulation performance indexes is ensured.

The utility model discloses a transformer sound level measurement auxiliary device, which comprises a plurality of sound level probes used for acquiring sound signals of a transformer, and further comprises a probe bearing frame covering the periphery of the transformer, and the plurality of sound level probes are arranged along the circumferential direction of the probe bearing frame. The sound level probes are located on the same horizontal plane, and the distances from the sound level probes to the outer surface of the transformer are equal. According to the utility model, the problem of inconsistent measurement distances caused by positioning deviation in traditional manual measurement is effectively solved, and the accuracy and reliability of measurement data are ensured; secondly, the sound level meter does not need to be held manually or the position of the measuring head does not need to be adjusted frequently, the electric shock safety risk possibly faced by manual operation under the electrified working condition is greatly reduced, and the personal safety of operators is guaranteed; and multiple measuring points can be measured at the same time, so that the condition of long time consumption of a single test caused by manual switching measurement of multiple measuring points in the prior art is changed, and the detection efficiency is greatly improved.

The utility model discloses a supporting rod for extending a sound level meter, and belongs to the technical field of extending supporting rods. The supporting rod for extending the sound level meter comprises a supporting mechanism and an extending mechanism, the extending mechanism comprises a connecting rod, a connecting base is rotationally connected to the interior of the upper end of the connecting rod, a micro motor is arranged on the outer side wall, close to the upper end, of the connecting rod, the output end of the micro motor is in transmission connection with the connecting base, and one end of the connecting base is connected with an extending base; sliding grooves are formed in the two sides of the inner wall of the extension base, an extension rod is slidably connected between the pair of sliding grooves, a screw is connected to the top end in the extension base through a bearing, one end of the screw is sleeved with a worm gear, a worm is rotationally connected to the position, close to the worm gear, in the extension base, and the worm and the worm gear are meshed with each other. The end, away from the worm gear, of the screw penetrates through the extension rod, extends into the extension rod and is in threaded connection with the extension rod, and the bottom end of the extension rod penetrates through the extension base and is connected with a connecting assembly.

The application discloses a road traffic noise crowd influence measurement method based on mobile phone signaling data, and the method comprises the following steps: acquiring mobile phone signaling data, determining the space-time distribution information of mobile phone signaling users, estimating the actual population space-time distribution according to the space-time distribution information of mobile phone signaling users and local population census data, calculating the residence time of users staying at each base station position according to the population age attribute in the mobile phone signaling data and the population activity characteristics in the actual population space-time distribution, and then determining a target data set; combining the hourly traffic noise map of the city to obtain the hourly traffic noise equivalent sound level of the coverage range of each base station, and calculating the road traffic noise continuous exposure intensity of the target crowd according to the target data set and the traffic noise equivalent sound level. The application has high accuracy and can be widely applied to the field of computer technology.

The utility model provides building environment noise detection equipment, belongs to the technical field of building engineering management, and aims to solve the problems that an existing sound level meter needs to be temporarily heightened by means of bricks and other objects in a building construction site to ensure the accuracy of a measurement result, operation is tedious, and extra errors are possibly introduced due to unstable supporting. Comprising a sound level meter body, a palm elastic band, an arm elastic band, a linkage placing assembly and a portable assembly. The two palm elastic bands are fixedly connected to the left side and the right side of the sound level meter body respectively. The arm elastic band is arranged behind the top of the sound level meter main body; the linkage placing assemblies are arranged on the left side, the right side and the bottom of the sound level meter body. And the portable assembly is arranged behind the top of the sound level meter main body. According to the utility model, the sound level meter main body can be magnetically attracted on an iron building structure and is matched with the three-legged telescopic support frame, so that the sound level meter main body adapts to detection operation in various complex environments, and the sound level meter main body can be fixed on an arm, so that the operation safety is guaranteed.

The utility model discloses a detection device for environmental engineering, which belongs to the technical field of environmental engineering, and comprises a sound level meter, the rear side of the sound level meter is movably connected with a split type disassembly and assembly mechanism, the rear side of the split type disassembly and assembly mechanism is movably connected with a flexible fixing mechanism, and the flexible fixing mechanism is movably connected with the sound level meter. The contradiction between portability and practicability of traditional long-time detection equipment can be solved, the problem that a traditional support is large in size and inconvenient to carry is solved by overturning and storing the clamping rods to the inner side of the fixed bottom plate and fixing the clamping rods through magnetic attraction, the portability is greatly improved, and an electronic telescopic rod is matched with a rotary knob to drive the clamping rods to conduct bidirectional clamping. The device can be rapidly installed on various carriers such as lampposts and trees without additional tools, traditional installation point position limitation is broken through, clamping rod lines enhance friction force, a ratchet and pawl structure locks a knob to prevent looseness, the installation stability in severe weather is effectively improved, the device is integrally compatible with various carriers such as wooden and metal rod bodies, and the installation cost is reduced. And the application scene of long-time detection is expanded.

An IoT Smart Sound Level Meter that is connected through the internet via ethernet cable, wifi or cellular network. The IoT Smart Sound Level Meter measures and monitors sound pressure levels. Sound pressure levels are measured in decibels. The sound pressure level data that is sent via the internet through ethernet, wifi or cellular network to cloud servers where the data is stored and saved. The cloud servers are connected to Application Programming Interfaces (API) connected to web-based software that converts the sound pressure level data into decibel measurements. These measurements are displayed to the end-user through the web-based software and / or application providing real-time decibel level measurements and historic sound pressure level recordings. The web-based software and / or application provides access to view decibel measurement data remotely from a computer, laptop, tablet, smart watch, or mobile device.

The utility model belongs to noise detection technical field, specifically disclose an improved wind power noise test is with noise signal collection equipment, including sound level meter and wireless device, wireless device includes the equipment cabinet that lies on the ground, is equipped with antenna mast structure on the equipment cabinet, is equipped with antenna support on antenna mast structure, has fixed structure on antenna mast structure, fixed structure includes the eye -splicing, the eye -splicing is fixed on the ground through the wind rope of inclination setting and the ground peg of wind rope bottom end, and the ground peg is symmetrically set up in the periphery of equipment cabinet, antenna support includes the connecting seat that sets up in the top of antenna mast structure, the lateral rod that is symmetrically set up with both sides of connecting seat, the lateral rod end is connected with the antenna through detachable structure, the top clearance of connecting seat is equipped with LED lamp and photosensitive switch.

The utility model discloses a device for realizing ultra-large dynamic range measurement of a sound level meter. The device comprises a microphone acquisition unit for acquiring sound signals and converting the sound signals into electric signals; the operational amplifier circuit unit and the operational amplifier attenuation circuit unit are used for receiving the sound signals acquired by the microphone acquisition unit and outputting electric signals; the relay switch unit is arranged on a circuit between the microphone acquisition unit and the operational amplification circuit unit and is used for receiving an opening and closing control signal of the processor CPU unit; and the audio ADC unit is used for receiving the electric signals of the operational amplifier circuit unit and the operational amplifier attenuation circuit unit, and outputting digital signals to the processor CPU unit to obtain and display sound level information. According to the utility model, preprocessing of full-scale sound signals of the sound level meter can be realized, and high precision and high dynamic range of measurement are ensured.

The utility model relates to the technical field of water pump detection equipment, and particularly discloses a water pump detection platform which comprises a base, a water tank, a control box, a movable base, a sound level meter, a pressure gauge, a water flow speed and temperature integrated sensor, a pressure sensor, a noise test shell, a flow meter, an electric valve, a first pipe body, a second pipe body, a motor and a pump body. The control box is arranged on one side of the water tank, the movable base is arranged on one side of the base, the pump body is arranged at the upper end of the movable base and communicated with the water tank through a first pipe body and a second pipe body, the motor is communicated with the pump body, and the noise testing shell is arranged at the upper end of the movable base. The noise testing shell covers the motor and the pump body, the sound level meter is arranged on the noise testing shell, and the pressure gauge, the water flow speed and temperature integrated sensor, the pressure sensor, the flow meter and the electric valve are sequentially arranged on the outer surface wall of the second pipe body.

The utility model discloses a sound level meter support for detecting automobile noise, which comprises a supporting assembly and a fixed placing assembly, the fixed placing assembly is arranged at the top of the supporting assembly, the supporting assembly is used for supporting the fixed placing assembly, and the fixed placing assembly is used for installing a sound level meter; the device is simple in structure and reasonable in design, through the arrangement of the supporting assembly and the fixed placing assembly, the measurement accuracy is improved, the device can be rapidly installed and adjusted on site, and the stability is enhanced.

This invention discloses a sound level weighting method for comparing subjective annoyance in train station halls. The method comprises the following steps: S1: obtaining a data set of traffic track noise to generate experimental signals; S2: using the experimental signals to conduct subjective annoyance assessments on test subjects; S3: mathematically modeling the annoyance assessment data; S4: validating the evaluation indicators; and S5: proposing a new evaluation network. This invention provides a method for quantifying subjective annoyance in train station halls to improve the waiting environment and facilitate noise management in train halls.

1. The name of this design product: Sound Level Meter (HT72). 2. Purpose of this design product: This design is used for noise measurement and acoustic measurement. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: three-dimensional picture.

The utility model belongs to the technical field of noise detection, and particularly relates to a noise acquisition device for intelligent mechanical equipment. Comprising a sound level meter body, a windproof cover is detachably installed on a microphone at one end of the sound level meter body, a containing groove is formed in the bottom of the sound level meter body, a telescopic support is arranged in the containing groove, and a motor used for driving the telescopic support to rotate relative to the sound level meter body is arranged in the sound level meter body. Space limitation is broken through through the telescopic support, the problem that an existing sound level meter is difficult to operate manually in narrow spaces such as the interior of a mechanical arm and an equipment interlayer is solved, the telescopic support can be remotely controlled to be unfolded, the angle can be adjusted, the microphone can be accurately aligned with a sound source, measured numerical values are more accurate, and operation is more convenient. And in cooperation with rapid disassembly and assembly of the magnetic type windshield and anti-interference design, full-automatic noise collection under complex working conditions is achieved, the feasibility and accuracy of noise detection of a closed space in the fields of automobile manufacturing and mechanical equipment machining are greatly improved, and the use requirements of users are met.

The invention provides an elevator noise and vibration testing system which comprises a hardware detection module, a data transmission module and an intelligent analysis module, automation and intelligence of elevator noise and vibration detection are achieved, the detection efficiency is greatly improved, the differentiated requirements are met, and the system is suitable for popularization and application. Signal acquisition, time synchronization, analog-to-digital conversion and storage are automatically completed through the front-end data processing module, and original data processing does not need to be manually intervened; the intelligent analysis module automatically optimizes data through algorithms such as background noise calibration and wavelet threshold denoising, realizes automatic judgment of states such as start-stop, constant speed, acceleration and deceleration of the elevator by means of a multi-feature fusion recognition algorithm, and finally automatically generates a visual chart and a standardized detection report; compared with a traditional mode of relying on a sound level meter for manual measurement and manual data summarization, the efficiency is remarkably improved, the differential detection requirements of low frequency, low noise level and the like can be met, and the single limitation of a traditional detection means is broken through.

The invention discloses a high-accuracy measurement method and equipment for a sound level test of a distribution transformer. The high-accuracy measurement method for the sound level test of the distribution transformer comprises the following steps: obtaining the external dimension and height information of the distribution transformer, obtaining a reference emission surface of the distribution transformer through a deep learning image segmentation algorithm, and carrying out smooth processing through a data fitting algorithm to obtain a specified contour line required by the test; measuring points are uniformly distributed on the contour line, a sound level meter and wireless transmission equipment are fixed, a distribution transformer wiring preparation test is completed, background noise is measured before the test and a result is uploaded, distribution transformer noise is measured in the test and a result is uploaded, background noise is measured after the test and a result is uploaded, and the effectiveness of the distribution transformer test noise is verified. If the conditions are not met, the background noise measurement before the test is carried out again after correction. The method provided by the invention can solve the problems of complex process, low accuracy and too low efficiency of the existing transformer sound level measurement method.

This invention discloses a portable sound source for sound level meter testing, comprising: a semi-in-ear earphone as a sound-generating unit; a sound guide tube, with the semi-in-ear earphone disposed at the front end of the sound guide tube for conducting sound waves; a limiting component disposed at the rear end of the sound guide tube for limiting the insertion depth of the sound level meter microphone; a microphone index tube disposed at the rear end of the limiting component for fixing the sound level meter microphone; and an external shock-absorbing and sound-insulating tube covering the exterior of the above components. This portable sound source for sound level meter testing uses a semi-in-ear earphone and common tubing for assembly, making it easy to manufacture and promote. It is also small in size and lightweight, requiring no external power supply, and suitable for on-site sound level meter testing. This solution provides a single sound source covering the 20Hz-16kHz frequency band, eliminating the need for equipment switching, simplifying the operation process, and achieving integrated testing across the entire frequency band. Furthermore, it exhibits high sound field stability and good sound field uniformity.

The invention discloses a power equipment intelligent inspection system for multi-scene self-adaption, and relates to the field of power equipment inspection, a scene voiceprint modeling module generates a scene three-dimensional model through laser radar scanning and marks equipment identity data, and a sound level meter is arranged to collect equipment audio signals; clustering after extracting frequency spectrum features, and eliminating anomalies to construct an initial voiceprint model; the adaptive learning module obtains real-time temperature by using a temperature sensor, calculates a temperature influence coefficient and a correction value, corrects the initial model to obtain a voiceprint baseline model, and updates the voiceprint baseline model regularly; the inspection positioning module acquires coordinates and postures of inspection equipment, calculates a distance and an azimuth angle between the inspection equipment and the equipment, and generates predicted synthetic voiceprint data according to a formula; and the abnormity identification module collects real-time voiceprint data, compares the real-time voiceprint data with prediction data, identifies abnormity when the fluctuation range is exceeded, and controls the inspection equipment to move and position abnormal equipment according to the distance. According to the system, the problems of multi-device sound source interference and temperature influence are solved, and the routing inspection reliability and the abnormity positioning efficiency are improved.

The utility model discloses a washing machine touchpad function testing device, which is used for testing a washing machine touchpad, the washing machine touchpad comprises a mechanical key and a touch screen, and the washing machine touchpad comprises an electric control box, an upper computer and a controller arranged in the electric control box, the washing machine touch panel function testing device further comprises a fixing bottom plate, a fixing assembly and a testing assembly, the testing assembly comprises a camera, a testing module and a sound level meter, the camera is fixedly connected with the fixing bottom plate and located above the fixing table, and the testing module comprises a moving device and testing fingers. The testing finger is fixedly connected with the moving device, moves under the driving of the moving device and presses the mechanical key or the touch screen, and the sound level meter is fixedly connected with the fixed bottom plate. According to the utility model, the mechanical key, touch, display and buzzing functions of the touch panel of the washing machine can be tested in a one-stop manner.

The application discloses an underwater glider vibration noise reduction and demonstration verification test bed, which comprises a suspension device, a swing table, a water tank, a data acquisition analyzer, a vibration acceleration sensor, a force sensor, a hydrophone, an excitation force hammer and a sound level meter. The hydrophone is arranged in the water tank, and the water tank is used for submerging the underwater glider into water to test the wet modal characteristics of the underwater glider. The data acquisition analyzer is connected with the vibration acceleration sensor, the force sensor, the hydrophone and the sound level meter. The excitation force hammer is used for applying a preset excitation force to the underwater glider. The underwater glider vibration noise reduction and demonstration verification test bed is used for testing the vibration noise of the underwater glider in air and in submerged water under various operating conditions in a suspended state, and analyzing the vibration reduction and noise reduction of the underwater glider. The swing table is used for fixing the underwater glider and simulating the swing posture and the depth of the underwater glider for demonstration verification.

The utility model relates to a quality control sound level meter, and particularly discloses a quality control sound level meter, which comprises a host, a PCB (printed circuit board) is arranged in the host, a first plug connector J1 is integrated on the PCB, and a storage module is fixedly mounted on the host; the storage module is in data connection with a corresponding pin SPI1SCK, a corresponding pin SPI1MISO and a corresponding pin SPI1MOSI on the first plug connector J1; a pin 7 and a pin 8 of the storage module are connected in parallel with a ground wire, and the ground wire is connected in series with a first capacitor C1; a pin 3 and a pin 4 of the storage module are connected with a power supply circuit formed by connecting a + 3.3 VBAT circuit and a BK circuit in parallel, and the + 3.3 VBAT circuit is connected with a disposable fuse F1 and a first resistor R1 in series and is connected with a second capacitor C2 in parallel. According to the invention, the read-write requirement of the storage module is met, and the memory requirement in the running process of the equipment is ensured.

Managing sound levels at an IHS, including determining, for each time duration over a first time period, multiple instantaneous sound levels of the time duration of an environment of the IHS; calculating, for each time duration over first time period, an average sound level of the time duration based on the multiple instantaneous sound levels of the time duration; determining, based on the average sound level of each time duration over the first time period, a lowest average first sound level for first time period; setting the lowest average first sound level as an ambient sound level of the environment of the IHS for the first time period; adjusting, for the first time period, a fan speed of a fan based on the ambient sound level of environment such that a noise level of the fan is less than the ambient sound level of environment for the first time period.

This application relates to the field of sampling and calibration device technology, and more particularly to an automatic sampling and calibration device for multi-point environmental parameters in space. The technical solution includes a main control device and at least one movable measuring platform. The main control device integrates a hygrometer, a dust particle counter, a differential pressure sensor, a sound level meter, an illuminance meter, a fiber optic temperature sensor, and an anemometer. The movable measuring platform integrates a fiber optic temperature sensor and a hygrometer. Both the main control device and the movable measuring platform are equipped with lifting devices and laser rangefinders, respectively used for sensor height adjustment and automatic positioning. The main control device has a control unit that controls each device to move to a designated point and rise to a set height according to a preset program, simultaneously collecting multiple environmental parameters and generating a calibration report. This application achieves efficient, accurate, and automated calibration of environmental parameters through integrated design, automatic positioning and lifting, and multi-machine collaborative control.