285 results about "Continuous measurement" patented technology

The invention relates to a meter state adaptive estimation method supporting data incomplete completion. The method comprises the following steps: acquiring continuous measurement data of a meter under a unified time reference to form an original measurement data sequence; generating a state parameter set for describing the current working state based on the original measurement data sequence; dividing an original measurement data sequence into a plurality of data windows, and predicting an expected measurement value in each window according to the variation amplitude and trend direction of collected data in adjacent time periods; comparing the predicted measurement value with an actual measurement value, and identifying positions with difference values exceeding a set threshold value to form an incomplete position index set; aiming at the incomplete position index set, in combination with the change trend and continuity of adjacent data, searching a complementation value in a preset reasonable numerical value interval, and generating a complemented measurement data sequence; according to the invention, the integrity and accuracy of the meter data under the condition of loss or abnormity are improved.

The invention relates to the technical field of traditional Chinese medicine extraction, in particular to a communication control method and system in the traditional Chinese medicine extraction process, and the method comprises the following steps: S1, technological parameter monitoring and recording, S2, data-based judgment and analysis, S3, communication control strategy making and execution, and S4, abnormal condition monitoring and early warning processing. In each time sequence section of traditional Chinese medicine extraction, refractive index change values at the beginning and the end are accurately measured and compared, and through a set threshold value, specifically in a soaking time sequence section, when the refractive index change exceeds the set threshold value, it can be accurately affirmed that the extraction process is started; and at the later stage of extraction, the extraction end point is accurately judged according to the change trend of the refractive index and the stability of continuous measurement, so that the problem of insufficient extraction or excessive extraction caused by inaccurate judgment is effectively avoided, the stability of the quality of the extract is ensured, and the production efficiency is remarkably improved.

To solve conventional problems, that is, to provide a bridge displacement monitoring system capable of continuously measuring a displacement of a bridge member and determining whether or not the displacement amount is appropriate after subtracting a displacement due to a temperature.SOLUTION: A bridge displacement monitoring system according to the present invention is a system for monitoring the displacement of a bridge, and includes temperature measurement means, positioning means, observation point displacement calculation means, smooth displacement calculation means, temperature-based displacement generation means, correlation value calculation means, processing method selection means, temperature displacement calculation means, displacement difference calculation means, and first warning output means. The smooth displacement calculation means performs two or more types of noise processing on the observation point displacement to obtain two or more types of "smooth displacements", and the temperature-based displacement generation means generates two or more types of "temperature-based displacement data sets" based on the "time-based temperature data set" and the two or more types of "time-based displacement data sets".SELECTED DRAWING: Figure 2

Aspects of the present disclosure include methods for determining baseline noise of a photodetector (e.g., in a light detection system of a particle analyzer). Methods according to certain embodiments include irradiating a sample having particles in a flow stream, detecting light with the photodetector from the irradiated flow stream, generating data signals from the detected light and calculating a moving average mean squared error of the generated data signals to determine the baseline of the photodetector. Systems (e.g., particle analyzers) having a light source and a light detection system that includes a photodetector for practicing the subject methods are also described. Integrated circuits and non-transitory computer readable storage medium are also provided.

The invention belongs to the field of data control optimization, and provides a sediment thickness real-time calculation method, system and equipment based on dynamic electric dip angle feedback, which can collect the current value fed back by a sediment thickness probe by setting a plurality of continuous and equal time sampling windows, collect the current value set in each time sampling window, and calculate the sediment thickness according to the current value set. Respectively calculating a current signal inclination angle according to the current value set in each time sampling window; a dynamic time window is used to filter the current signal dip angle of each time sampling window to control the real-time calculation of the sediment thickness. The sediment thickness can be reliably and continuously obtained in real time and probe deflection and environment drifting can be automatically counteracted under the environments of mud, high pressure, deep holes and the like. The device and the method have remarkable progress in the aspects of drifting resistance, noise resistance, continuous measurement and equipment reliability, and can be widely applied to sediment thickness detection of deep piles, large-diameter cast-in-place piles and coastal high-salt projects.

The invention relates to a high-adaptability fused salt heat storage system in-situ monitoring method, which is characterized in that current and potential signals correspond to the concentration of impurity ions in fused salt through an electrochemical analysis method, and the current value of a characteristic peak corresponds to the concentration of impurities in the fused salt, so that sampling and chemical analysis are not needed; according to the method, the real-time concentration of the impurities can be obtained only by acquiring the characteristic peak current value through electrochemical scanning, the fused salt component analysis process is greatly simplified, the real-time monitoring of the ion concentration through the square wave voltammetry is an automatic and continuous process, and compared with a traditional analysis method, the method has the advantages of being high in sensitivity and analysis speed and suitable for popularization and application. And analyzable response can be generated to tiny concentration change. According to the invention, in-situ and continuous measurement of the concentration of the marker impurities in the molten salt can be realized, and timely and accurate feedback can be provided for changes of components and heat storage performance of the molten salt.

The invention belongs to the technical field of aircraft atmospheric data measurement equipment, and particularly relates to an intelligent towing cone system for test flight calibration, which is used for calibrating flight parameters such as height and speed output by an aircraft atmospheric data system and providing a parameter correction basis. The dragging cone system comprises a static pressure tube, a tail cone body, an optical fiber sensor, a dragging structure and an optical fiber sensing analyzer. According to the invention, the length of the pressure gas circuit of the towed cone system can be shortened, the problem of pressure delay in the existing towed cone product can be solved, the real-time continuous measurement of the pressure of the towed cone system is realized, the dynamic flight calibration of atmospheric parameters is realized, and the test flight calibration efficiency is improved.

The invention belongs to the technical field of atomic inertial measurement, and discloses a continuous measurement atomic interferometer control method and system. The method comprises the steps that atoms are sequentially subjected to N times of stimulated Raman transition, the time difference between the stimulated Raman transition is T, atom interference is achieved, in the same vacuum cavity, a plurality of atomic groups are sequentially subjected to atom interference, when the Kth atomic group is subjected to the nth time of stimulated Raman transition, the (K + 1) th atomic group and the Kth atomic group share Raman laser, and the Kth atomic group and the (K + 1) th atomic group share Raman laser. And the first stimulated Raman transition of the (K + 1) th atomic group is synchronously carried out, so that the atomic interference of the atomic group in the vacuum cavity at each moment can be ensured, the output result of the interferometer covers the working time of the whole interferometer, the continuous measurement of the atomic interferometer is realized, and n is less than or equal to N.

The utility model discloses a novel tetrahydrothiophene concentration measuring device, which relates to the technical field of tetrahydrothiophene detection and comprises a natural gas pipeline, the rear side of the natural gas pipeline is fixedly connected with an L-shaped pipeline I, and the rear end of an L-shaped pipeline III is fixedly connected with a gas mixing chamber. The rear side of the natural gas pipeline is respectively provided with a gas mixing chamber unit, a compressed air preparation unit, a natural gas decompression preparation unit, a sample gas detection unit, a control unit and a communication unit. Air and natural gas are mixed in equal volume, an aerobic detection environment is created, and the working principle of an electrochemical tetrahydrothiophene detector is matched; according to the electrochemical tetrahydrothiophene concentration detector, the tetrahydrothiophene concentration of the mixed gas is accurately detected, then the tetrahydrothiophene concentration of the natural gas is deduced according to the isovolumetric proportional relation, reliable working conditions are created for the electrochemical tetrahydrothiophene concentration detector, continuous measurement can be achieved, detection data are stable, repeatability is good, and precision is high.

The invention relates to a sleeper lateral resistance testing device considering the service state change of a ballast track. The sleeper lateral resistance testing device comprises a suspension assembly, a loading assembly and a measuring assembly, the suspension assembly comprises a suspension steel frame cross beam, a suspension steel frame side beam and a supporting cross beam; the suspension steel frame cross beam is installed on a steel rail, the supporting cross beam is installed on a sleeper, the suspension steel frame side beam is installed on a sliding rail of the supporting cross beam, and the side face of the suspension steel frame side beam is connected with the suspension steel frame cross beam; a side beam lower pressure sensor is mounted below the sliding rail; the loading assembly comprises two jacks which are arranged at symmetrical positions relative to a sleeper, and the jacks are arranged on a steel rail; the measuring assembly comprises a laser displacement sensor, a jack pressure sensor, a pressure data acquisition instrument, a displacement data acquisition instrument and a notebook computer; and continuous measurement of transverse resistance and displacement is realized. Compared with the prior art, the real service state can be kept; displacement can be accurately controlled; disturbance is reduced, and data reliability is high.

The invention relates to a system and a method capable of measuring the size of a casting blank on line, and the method comprises the steps: installing a photoelectric trigger and range finders on a continuous casting ejection roller way, respectively measuring the distances from the two range finders to narrow surfaces at two sides by using the two range finders which work synchronously at the same frequency, judging the reasonability of a width value, and storing width data at a computer end. Then width data in the length direction and the thickness reverse direction of the casting blank are measured through movement of the distance measuring instrument, the length and width sizes of the casting blank are calculated through the measured reasonable width value display range or the position change of the distance measuring instrument, and the width, the length, the thickness and curve data of the width, the length and the thickness are displayed on a computer end after numerical value correction. According to the invention, the continuous measurement of the casting blank size and the effective storage of the measurement data can be realized, the measurement size types are various, the measurement time is short, the precision is high, the manual labor intensity can be reduced, and the safety risk factors are reduced.

The invention provides an automatic foaming and automatic measuring soap film gas flow standard measuring device and method, and belongs to the technical field of gas flow measurement. The device comprises a liquid soap pool, a soap film pipe, a film lifting pipe, a connecting pipe, a pipettor, a single chip microcomputer and the like. The liquid soap pool is used for storing liquid soap, the soap film pipe is installed above the liquid soap pool, the film lifting pipe is used for generating and conveying a soap film, the pipettor is used for accurately controlling the liquid level in the film lifting pipe, and the single-chip microcomputer serves as a control center and is in communication connection with the sensors and the actuator. The specific measurement process comprises the stages of initial preparation, automatic wetting of the pipe wall of the soap film, automatic measurement, continuous measurement and the like, gas flow is accurately measured by automatically controlling generation, movement and breakage of the soap film and combining data of multiple sensors, errors caused by manual operation and foam residues of a traditional soap film flowmeter are avoided, and the measurement accuracy is improved. And high-precision and high-efficiency gas flow measurement is realized.

The invention provides a railway bridge line beam eccentricity measuring method, which at least comprises the following steps of: acquiring position information of a bridge guardrail by adopting a radar module, and adjusting the height position of a laser ranging module according to the position information, so that the laser ranging module can detect the bridge guardrail for ranging; the laser ranging module is adopted to measure the distances between the first steel rail and the bridge guardrails on the two sides of the first steel rail at the same time, and the eccentric distance is calculated according to the distance parameters measured by the laser ranging module and the track gauge of the track. The invention provides a device for measuring the eccentricity of the railway bridge line beam. The measuring device is applied to the method for measuring the eccentricity of the railway bridge line beam. The method has the beneficial effect that the eccentric distance along the track can be automatically and continuously measured.

The invention discloses a gradient thermocouple liquid level real-time detector, and relates to the technical field of liquid level detection, an integrated gradient thermocouple probe rod structure is adopted, a plurality of groups of thermocouple nodes are integrated on a single corrosion-resistant alloy integrated gradient thermocouple probe rod according to a preset interval through a special process, and a continuous temperature gradient sensitive area is formed. A high-precision signal processing circuit is embedded in the integrated gradient thermocouple probe rod, the temperature difference potential of each node is collected in real time, the liquid level height is calculated based on a dynamic temperature field modeling algorithm, and full-scale continuous measurement is achieved. Gradient node distributed layout is created for the first time, and a blind area of traditional point type measurement is eliminated; a self-adaptive temperature compensation mechanism is developed, and medium layering and boiling interference are overcome; the integrated gradient thermocouple probe rod adopts vacuum sealing and a nanometer heat insulation coating, and can resist a high temperature of 600 DEG C and a high pressure environment of 40 MPa. The device has millimeter-level measurement precision and millisecond-level dynamic response capability, does not need to move parts or external radiation sources, and remarkably improves the reliability, safety and installation convenience of liquid level monitoring of industrial reaction kettles and high-pressure boilers under extreme working conditions.

The invention relates to the technical field of continuous measuring devices, and discloses a continuous measuring device for land surveying and mapping, which comprises a frame, the bottom of the frame is fixedly connected with a roller assembly, the front side of the frame is fixedly connected with a fixed handle, the inner wall of the frame is provided with a surveying and mapping mechanism, the inner wall of the frame is provided with a fixing mechanism, and the surveying and mapping mechanism is fixedly connected with the fixing mechanism. After moving to the corresponding position, the electric drill rod assembly is driven by the motor to work at the corresponding position, the situation that a worker needs to manually push the electric drill rod assembly to conduct continuous surveying and mapping on the land during surveying and mapping is avoided, the working cost of equipment is saved, and the overall working efficiency of the equipment is improved; after work is completed, the hydraulic cylinder drives the dustproof shell to be closed, dust is prevented from adhering to the surface of the laser detection machine when the laser detection machine is not used, the detection result is further improved, the detection result better conforms to reality, and the service life of equipment is longer.

The invention relates to the technical field of automobile manufacturing, discloses a measuring gauge for the ablation edge angle and the profile tolerance of a door ring single plate, and solves the problems that an existing measuring gauge for the ablation edge angle and the profile tolerance of the door ring single plate can only perform single-dimension linear measurement, time and labor are wasted due to multi-step operation, and efficiency is low. The device comprises a frame, a workbench arranged at the top end of the frame and a dial indicator movably connected to one side of the workbench, the dial indicator is stably fixed through driving of a three-clamp structure, a driving structure, a moving assembly and a fixed-point measurement structure, the measurement accuracy and reliability are improved, meanwhile, a camera can record data in real time, three-face clamping is conducted on a single plate, and the measurement accuracy and reliability are improved. The device is simple in structure and convenient to operate, ensures that the device is fixed in position in the measurement process, can perform multi-path and fixed-point equidistant measurement on the measurement surface of the single board, improves the measurement integrity and accuracy, facilitates the evaluation of the quality of the single board, can achieve comprehensive and efficient continuous measurement through the cooperation of a short rack and a second gear, and is suitable for large-scale production measurement.

The invention discloses a cross section water depth continuous measurement method and system based on millimeter waves, and relates to the technical field of hydrographic measurement. According to the invention, through a millimeter wave radar array and a multiple-input-multiple-output antenna, a frequency modulation continuous wave signal is transmitted and a mixed echo signal is received; extracting time-frequency characteristics by using wavelet transform and short-time Fourier transform, and classifying reflection peaks in combination with a Gaussian mixture model; calculating the thickness of an ice layer, the thickness of an air interlayer and an initial water level based on the delay inequality, and dynamically correcting an error through adaptive Kalman filtering; a dynamic focusing algorithm is adopted to synthesize water surface and riverbed reflection signals, and a sand content compensation and flow velocity correction model is introduced to optimize water depth and riverbed elevation inversion; the three-dimensional interpolation weight is optimized through an ant population algorithm, and a high-precision cross section continuous water depth distribution diagram is generated; according to the invention, the problems of poor penetrability, weak anti-interference capability and low continuous water depth precision are solved, and full-section dynamic monitoring of the ice layer thickness, the water level, the water depth and the riverbed form is realized.

A radar level measuring device is provided, the device being configured to perform a measurement for determining a level of a filling material by a frequency modulated continuous wave measurement method, the radar level measuring device including: a transmitting device configured to transmit a radar signal in a direction of a filling material surface to perform the measurement; a receiving device configured to receive the radar signal reflected from the filling material surface and to evaluate the measurement; a control device configured to control the transmitting device and the receiving device; and a selection device configured to select a parameter set for controlling the transmitting device and the receiving device, the parameter set including at least a measurement duration of the measurement, a minimum measurement frequency and a maximum measurement frequency of the measurement, and a number of consecutive measurements.

The invention relates to the technical field of geological disaster monitoring, and discloses an unmanned aerial vehicle aerial survey intelligent identification and grading method and system for geological disaster hidden danger points, and the method comprises the steps: converting a pixel-level identification result into hierarchical data which retains a spatial topological structure through constructing a confidence quad-tree; establishing a weighted decision grid based on aerial survey parameters to realize coupling modeling of observation conditions and confidence uncertainty, calculating topology difference to generate a spatial difference field to quantify the deviation degree of a confidence field and a standard grading decision surface, and finally executing self-adaptive grading judgment to output a risk grade result with a confidence label; according to the method, the problem of confidence field and decision boundary space topology mismatch caused by truncation of confidence continuous measurement information in a grading stage in a traditional serial architecture is solved, systematic underestimation of misjudgment risks in observation condition limited areas such as alpine and gorge areas is avoided, and consistency of actual credibility of a risk quantification result and a nominal grade is realized.

The invention relates to the technical field of breathing machine off-line evaluation, in particular to a breathing machine intelligent off-line evaluation system based on multiple parameters, which is characterized in that a data acquisition unit acquires breathing and physiological parameters of a patient in real time; the data analysis unit extracts a respiratory rate instantaneous value and a blood oxygen saturation continuous measurement value through preprocessing, inputs the respiratory rate instantaneous value and the blood oxygen saturation continuous measurement value into an intelligent analysis model composed of a deep residual network and a time convolution network, fuses a physiological hysteresis compensation coefficient to generate an offline index, and outputs a preliminary offline risk index; the data processing unit is embedded into a clinical rule base through a decision tree algorithm, generates a risk correction factor through a taboo check factor, allocates differentiation weights according to severity levels, corrects initial risk deviation and generates a comprehensive offline risk index, and the clinical rule base is continuously optimized through online learning, so that the offline risk assessment accuracy is improved; and a reliable basis is provided for clinical decision-making.

The invention belongs to the field of magnetic positioning detection, and discloses a staggered casing detection system and positioning method based on magnetic field tensor gradient, and the system comprises three fluxgate sensors which are vertically arranged along a vertical measuring line in an underground magnetic casing, and a host located on the ground; the vertical measuring line is arranged on the axis of the magnetic casing pipe, and the three fluxgate sensors form a measuring array and are used for moving downwards along a drill hole at the dislocation position of the magnetic casing pipe for continuous measurement to obtain three-component data of a magnetic field of the dislocation casing pipe; and the host is used for receiving the data from the three fluxgate sensors and carrying out data processing and analysis to generate a magnetic anomaly response curve so as to observe and determine the position and the characteristics of the broken sleeve. The broken sleeve detection system and the positioning method have visual distance and positioning functions and are high in positioning efficiency and wider in application scene.

The utility model relates to a self-stabilization type ocean optical radiation profile continuous measuring device, and belongs to the technical field of buoys. According to the device, the overwater optical sensor is kept vertical through the vertical self-stabilization objective table on the water surface floating ball by means of gravity, and the attitude stability of the sea surface optical sensor is easily improved with low layout and low maintenance cost, so that the data measurement quality of the sea surface optical sensor is improved, and an environmental reference is provided for underwater optical data; the free rotation characteristic of the roller module is utilized to reduce the disturbance effect of ocean current, improve the attitude stability of the underwater measurement module and realize accurate measurement of underwater optical profile data; and the influence of shadow on the underwater optical sensor is eliminated by using the telescopic and symmetrically arranged supporting rods. Finally, the problem that the attitude of the measurement device is unstable is solved with easy arrangement and low maintenance cost, the measurement quality of underwater optical radiation profile data is improved, and continuous measurement of underwater data is realized by using a bidirectional control module in the underwater measurement module.

The invention discloses a deep stratum three-dimensional in-situ crustal stress continuous measurement device and method, and belongs to the technical field of crustal stress measurement. The device comprises a shell, wherein a plurality of cameras, a plurality of water jet heads, an image acquisition module, a water jet supply module and a data transmission module are connected in the shell; the cameras are arranged in the circumferential direction and used for shooting images of the periphery of the shell, the water jet cutter heads are arranged on the shell corresponding to the cameras, the cameras are electrically connected with the image acquisition module, the image acquisition module is electrically connected with the data transmission module, and the water jet cutter heads communicate with the water jet cutter supply module. The device can be used for continuously monitoring the ground stress, can be used under complex geological conditions, is simple and convenient to operate and high in efficiency, and greatly reduces the test cost and time investment.

The invention relates to the technical field of railway catenary geometric parameter detection, and discloses a method for high-precision continuous measurement of catenary geometric parameters, which is characterized in that the method is applied to a device for high-precision continuous measurement of catenary geometric parameters. The device is provided with a laser ranging module, a laser galvanometer module, a control module and a data processing module, the method comprises the step of emitting a ranging laser beam to a laser reflector, and according to the method and device for high-precision continuous measurement of the geometric parameters of the overhead line system, a deflection motor is controlled to drive the laser reflector to perform high-speed high-precision quantitative deflection; a distance measuring laser beam is emitted through a laser measuring module and irradiates a laser reflecting mirror to form a fan-shaped scanning area, laser distance values between a carrier cable, a dropper and a contact line and the laser distance measuring module are obtained at the same time in the area, and a guide height value and a pull-out value of the contact line are obtained after calculation. Therefore, the purpose of continuously measuring the geometric parameters of the contact line with high precision is achieved.

A temperature measurement device (1) comprises: a light emission unit (10) that generates coherent, continuous measurement-light; a light detection unit (30) that detects reflected light or transmitted light of the continuous measurement-light which is projected onto a sample (50) to be measured; and an analysis unit (42) that calculates a temperature distribution of the sample (50) to be measured on the basis of the intensity of the reflected light or the transmitted light detected by the light detection unit (30). The analysis unit (42) calculates the optical thickness of the sample (50) to be measured from a temporal change in the intensity of the reflected light or the transmitted light and, by using a refractive index distribution model representing the relationship between the optical thickness and a refractive index distribution in the thickness direction of the sample (50) to be measured at the time of a temperature change, calculates the refractive index distribution from the optical thickness, and calculates the temperature distribution of the sample (50) to be measured by converting the refractive index distribution into the temperature distribution on the basis of the thermo-optical coefficient of the sample (50) to be measured.

An aspect of this disclosure includes a method performed by a mobile device,. The method includes receiving, from an access network node, information for configuring continuous measurements across a plurality of a Radio Resource Control (RRC) states of the mobile device, performing the continuous measurements in one or more of the plurality of the RRC states, based on the information for configuring the continuous measurements across the plurality of the RRC states of the mobile device; and,transmitting, to the access network node, respective measurement reports corresponding to the one or more of the plurality of the RRC states, the respective measurement reports including information for tracing a process of the continuous measurements across the plurality of the RRC states.

The invention relates to a method for detecting the depth of an airtight belt groove of an aircraft hatch cover, and belongs to the technical field of aircraft assembly detection. According to the method, high-precision and high-efficiency measurement of the groove depth can be realized, depth measurement is realized by adopting a high-precision laser distance measuring sensor, an analog electric signal generated when the sensor moves is transmitted to a single chip microcomputer for processing and is converted into corresponding displacement through program calculation, and the problem of manual measurement error is solved. Meanwhile, a digital measuring device is designed, according to the appearance characteristics of the airtight belt groove, a dynamic balance component matched with measurement is manufactured, the measuring stability is guaranteed, and the measuring precision is improved. Meanwhile, continuous measurement of the depth of the airtight belt groove can be achieved through the measurement method, the specific depth value of each detection point can be displayed in real time in the whole measurement process, the minimum depth value is recorded, and the detection efficiency is improved.

The utility model discloses a novel body surface scar area measuring film, which belongs to the technical field of forensic medicine measuring tools and comprises a film, a plurality of vertical lines are coated on the film, a scar is arranged in a large quadrilateral frame formed by two vertical lines on the outermost layer and two transverse lines on the outermost layer of the film by arranging the film, and the scar area is measured by the aid of the large quadrilateral frame. 1 cm < 2 > is directly calculated when all the scars fall into the minimum grid units, the periphery of the scars does not occupy the minimum grid units, the marked minimum grid units are added according to the number of the scars falling into the grids, after continuous measurement is carried out, the total area of the scars is obtained by adding the estimated scattered scar areas, and the recording paper is used for recording data at any time. According to the method, a more accurate estimated scar area is obtained, the error with the scar area calculated by a scanner is further reduced, convenience can be kept, data during measurement can be recorded to prevent omission, data storage in the measurement process is facilitated, and the method has high practicability.

The invention relates to the technical field of ore pulp concentration detection, in particular to a continuous detection type ore pulp concentration detection device which comprises a detection shell, a knocking block arranged at the bottom of the detection shell, a vibration sensor arranged in the detection shell, a processing unit arranged in the detection shell, and supporting legs fixedly installed on the left side and the right side of the detection shell. A metal strap is installed on one side of each supporting leg, a buckle is arranged on each supporting leg, a plurality of clamping grooves are evenly formed in each metal strap, an electric guide rail is installed on each supporting leg, a chuck is installed on a sliding block of each electric guide rail, and a pressure sensor is installed at the bottom of each supporting leg. The pressure sensors and the electric guide rails are arranged on the supporting legs, so that an intelligent sensor system is formed, the electric guide rails automatically tension the metal strap when the metal strap is loosened, the situation that the detection shell and the pipeline cannot be stably connected due to loosening of the metal strap is avoided, and the detection precision and the use stability of equipment are effectively guaranteed.

The application discloses a kind of automatic monitoring device and method of tree trunk radial growth, it is related to measurement technical field, device includes: electric rotating platform, laser ranging sensor, data processing equipment and support platform;Electric rotating platform drives laser ranging sensor to rotate a week, and laser ranging sensor determines the distance of all sheltering objects to sensor in real time;Data processing equipment receives the real-time ranging data sent by laser ranging sensor;After measuring a circle, the ranging data of current ranging data set is clustered, and a plurality of ranging data clusters are obtained;Right-angle coordinate modeling and circle fitting are carried out on each ranging data cluster, to determine the position and diameter of each tree trunk;Through the diameter of tree trunk obtained by continuous measurement at different times, the radial growth rate of tree trunk is calculated. By implementing the present application, the growth rate of multiple tree trunks can be measured automatically in a non-contact form, solving the problem of contact measurement affecting tree growth and only single measurement in the prior art.