368 results about "Small range" patented technology

The invention belongs to the technical field of glue filling control, and particularly relates to a glue filling amount control method and system. According to the method, the glue filling deviation can be controlled within an extremely small range through multi-time iteration control of a stage theoretical value and real-time feedback, the filling consistency and the bonding strength are remarkably improved, initial compensation is conducted in combination with various working condition parameters such as temperature, pressure and materials, the pressure and the diffusion dynamic state are monitored in real time, and the working efficiency is improved. The system can automatically adapt to environmental fluctuation and glue performance change, accurately control the filling amount, respond to overflow and viscosity abnormity in time, reduce glue waste, avoid product reworking caused by excess or insufficient glue, combine closed-loop feedback with maintenance strategies, automatically identify and process abnormal states, improve the automation degree and operation stability of a production line, and improve the production efficiency. Manual intervention is reduced, rapid configuration and expansion can be carried out according to different workpiece shapes, materials and production working conditions, and the device is suitable for various glue filling scenes.

The invention relates to the technical field of electrical measurement, and discloses an electrical measurement instrument dynamic calibration error compensation method, which comprises the following steps: S1, multi-source data real-time acquisition: integrating a temperature sensor, a humidity sensor and an electromagnetic interference detection module in a measurement instrument, configuring voltage, current, frequency and other measurement channels, and carrying out multi-source data real-time acquisition at the frequency of not less than 100HZ; environmental parameters (temperature T, humidity H and electromagnetic interference intensity E) and measurement data (model characteristic parameters X1, X2,..., Xn such as voltage, current and frequency) are synchronously acquired. According to the electrical measuring instrument dynamic calibration error compensation method, through multi-source data real-time acquisition and composite error model construction, in combination with multiple linear regression and an improved BP neural network, environment and measurement signal changes are comprehensively captured, an error compensation value is accurately calculated, a measurement error can be effectively controlled within an extremely small range, and the error compensation accuracy is improved. Compared with a traditional method, the measurement precision is greatly improved.

The invention relates to the technical field of Internet, and discloses a bandwidth control method and device, equipment and a storage medium, and the method comprises the steps: determining a target resource address corresponding to a current request based on the address information of the current request in response to the issuing of the current request; the current request number and the request number threshold value of the target resource address are obtained, and the request number threshold value is determined based on the real-time bandwidth and the redundant bandwidth of the target resource address; and if the current request number is smaller than or equal to the request number threshold value, scheduling the current request to a target resource address, so that a target machine corresponding to the target resource address serves the current request. Therefore, the request number threshold value of the target resource address is determined based on the real-time bandwidth and the redundant bandwidth of the target resource address, so that prediction control is performed on the number of requests which can be borne by a machine, the bandwidth of the machine is controlled to fluctuate in a small range near the bandwidth threshold value, and the service quality of a service is not influenced while the bandwidth utilization rate is guaranteed.

The invention provides a communication method and a communication device, which are applied to the field of sensing and / or tracking, in the communication method, when a sensing function determines a target object, errors possibly existing in a first position are calibrated through object distribution information and the first position in a first area, more accurate position information of the target object is obtained, and the positioning accuracy of the target object is improved. And the tracking precision is improved. Besides, the first object can be non-UE, and the sensing function refers to the position information of the UE in the first area when determining the first object in the objects in the first area, so that the UE in the first area can be excluded, and the first object close to the first position can be determined as the target object in a small range or few objects after exclusion. The recognition accuracy of the target object is improved, and the sensing or tracking precision is further improved.

The invention relates to the technical field of mark point identification and positioning, in particular to a polygon mark point rapid identification and positioning method and system and a storage medium. Then, the gradient direction information and the coordinate information of the reserved strong edge are used for rapidly estimating the rotation angle and the center of the polygon mark point to be detected, the method is small in calculation amount and easy to operate, and rough pose information of the polygon mark point to be detected can be rapidly obtained; the estimated angle is further corrected in a small range in a rotary projection mode, the deviation between an estimated value and a real value is reduced, and a more accurate initial value is provided for subsequent registration; finally, the corrected coarse positioning result is used as an initial value for registration, the convergence speed can be increased, the number of iterations can be reduced, meanwhile, the probability that iteration falls into a local extreme value can be reduced, the operation speed is increased, and the accuracy rate is increased.

The invention belongs to the technical field of environmental monitoring, and particularly relates to a range adaptive detection method and system based on light source and gain cooperative adjustment. The method comprises the following steps: setting a detection system to be in a small-range working state; signal acquisition is carried out, and a signal value after analog-to-digital conversion is obtained; judging whether the signal value reaches a saturation threshold value or not; determining a combination of new light source intensity and new sensor gain according to a pre-stored calibration parameter table; adjusting the light source intensity of the detection system to Inew, and adjusting the sensor gain to Gnew; after adjustment, new signal acquisition and conversion are carried out to obtain a new signal value, a pre-stored calibration parameter table is inquired to obtain a corresponding compensation coefficient based on the currently used combination of Inew and Gnew, and a compensated real concentration value is calculated and output. According to the invention, the core contradiction that the measurement precision and the measuring range are difficult to consider in a wide concentration range in the traditional fixed-measuring-range detection technology is fundamentally solved.

The invention discloses a probe structure of an eddy current type edge sensor, which comprises an eddy current type sensor, a first clamping mechanism fixedly arranged on the back surface of a first sub-mirror, a second clamping mechanism fixedly arranged on the back surface of a second sub-mirror adjacently connected with the first sub-mirror, and a U-shaped notch structure with one end, close to the second clamping mechanism, of a U-shaped block, a cantilever beam is clamped on the second clamping mechanism, the cantilever end of the cantilever beam is inserted into the notch structure, and detection components of the eddy current type sensor are fixedly arranged on the cantilever end and the upper surface and the lower surface of the notch structure respectively. The probe structure shows excellent stability under specified environmental conditions, drifting among the sensors is kept within a small range, and the probe structure has high reliability and performance consistency under temperature change and humidity fluctuation.

The invention relates to the technical field of dam monitoring, and discloses an automatic dike deformation monitoring device and a use method.The automatic dike deformation monitoring device comprises a dam body, a sliding groove is fixedly connected to the top of the dam body, universal wheels are slidably connected to the inner wall of the sliding groove, a moving plate is fixedly connected to the tops of the universal wheels, and a console is fixedly connected to the top of the moving plate; according to the device, the rotating plate drives the monitor to rotate, in the moving process of a monitoring area of the device, the monitoring area can be increased through rotating movement of the monitor, the monitoring collection area of the monitor is increased, the monitoring efficiency of the device is improved, and the monitoring precision of the device is improved; the rotation of the rotating rod can drive the monitor to rotate in a small range, at the moment, the rotation of the monitor can further improve the detection area of the monitor, the monitoring integrity of the device is improved, and the monitoring data precision is improved.

The invention provides a fast capture implementation method suitable for high-speed spread frequency hopping signals, which comprises the following steps of: 1, starting a capture process, and carrying out digital de-hopping; 2, roughly capturing and searching the de-hopped signal; and step 3, finely capturing and searching the de-hopped signal. According to the method provided by the invention, a large-range preliminary search method is used for assisting a small-range fine search method to replace the problem of resource doubling caused by a traditional spread frequency hopping large dynamic interval search method, so that the on-satellite resource consumption is greatly reduced, the capture time is shortened, and the method is insensitive to the transmission rate. The method is suitable for a space environment with a severe signal-to-noise ratio, a complex electromagnetic compatibility environment, an electrostatic discharge environment and a random interference environment, and is also suitable for a complex space environment.

The present disclosure provides a multi-functional emergency rescue multi-rotor drone, which includes a drone frame. Installation cabins are arranged on both sides of the drone frame, and a control unit and a power supply unit are arranged inside the installation cabins. The present disclosure belongs to the technical field of multi-functional emergency rescue multi-rotor drones. When in use, the present invention controls the motor to cooperate with the gear assembly to rotate the connecting shaft, and with the arrangement of the linkage assembly, when the connecting shafts on both sides rotate, they can rotate in the same direction or rotate relatively, so that the arc-shaped frames connected by the two connecting shafts can flip synchronously in the same direction or synchronously in the opposite direction to control the orientation of the flight rotors at each position. And with the cooperation of the control component, the drone can change among the states of normal flight, vertical flight and rotor deflection flight, so that the drone can move in an open environment and a narrow environment, and can rotate and flip within a small range of environment.

The invention provides a 3D point cloud generation, identification and segmentation method, a device comprises a laser, a camera, a motor and a controller, the laser is assembled on the motor, and the controller can control the motor to rotate according to a preset speed so as to drive the laser to rotate and can obtain and store the rotation angle of the motor; the laser is controlled to emit a beam of planar laser; the controller can control the camera to take photos according to different parameters and store photos, and the device belongs to a point cloud generation device of a monocular structured light method, is suitable for point cloud generation in a small range and a short distance, and is high in precision; according to the 3D point cloud generation, identification and segmentation method, the three-dimensional point cloud and the two-dimensional image of the to-be-measured object can be synchronously acquired, the point cloud corresponds to the image, and the identification and segmentation of the three-dimensional point cloud can be realized by identifying and segmenting the two-dimensional image, so that the complexity of 3D point cloud identification and segmentation is remarkably reduced, and the efficiency is improved.

The invention belongs to the field of integrated circuit fault analysis, and particularly relates to a large-scale integrated circuit multi-means combined soft defect fault positioning method, which comprises the following steps of: narrowing a multi-input vector range by adopting a dichotomy, and quickly determining a part of logic vectors associated with a fault phenomenon; the method comprises the following steps: dividing an internal transistor of a large-scale integrated circuit into a plurality of functional modules according to functions, and testing each functional module in a grading manner in combination with a nanoprobe and a dichotomy under the excitation of a part of logic vectors associated with a fault phenomenon; for the screened abnormal function modules, whether transistor faults or / and connecting line faults exist or not is judged; if a transistor fault or / and a connecting line fault exist, scanning the fault transistor and an accessory line by adopting an SEM, slicing a fault part by adopting an FIB, and observing the fault morphology by adopting a TEM; according to the method, the positioning range is effectively narrowed, fault excitation conditions are refined, soft errors in a large range are converted into hard errors in a small range, and then fault points are quickly positioned.

The invention discloses a micro-motion control device for online compensation of optical axis offset, which comprises an optical end mechanism and a base, a plurality of micro-motion driving rods are connected in parallel between the optical end mechanism and the base, a plurality of micro-displacement sensors are arranged on one side of the optical end mechanism, and the optical end mechanism comprises a mirror frame. According to the invention, the optical tail end mechanism, the micro-motion driving rods and the micro-displacement sensor are arranged and are matched with one another, and the lengths of the six micro-motion driving rods are respectively adjusted, so that the lens can be driven to realize any posture on six degrees of freedom in a small range, and meanwhile, measured data can be compensated in real time through feedback closed-loop control; the infrared imaging system has the advantages that the control precision is improved, the optical axis deviation of the infrared imaging system caused by the heat effect can be compensated, the optical lens can be controlled in a closed-loop manner by arranging the measuring element and the feedback ring, the control precision of the whole equipment is high, the stability can be kept in a complex mechanical environment, and the imaging quality of the system is ensured.

The invention provides a semiconductor scribing method and a semiconductor chip. The semiconductor scribing method is used for a single-axis scribing machine and comprises the following steps: S1, fixing a silicon wafer; s2, cutting the center of the scribing channel of the silicon wafer for the first time in a penetrating manner; s3, cutting a second knife at a first preset distance on one side of the knife edge of the first knife in a penetrating manner; s4, cutting a third knife at a second preset distance on the other side of the knife edge of the first knife in a penetrating manner; and S5, separating the cut silicon wafer to obtain a semiconductor chip. According to the invention, the size of the broken edge of the chip after cutting up can be controlled within a small range, no step exists on the side surface of the chip after cutting up, in addition, the method can be directly carried out on a single-axis scribing machine, and the equipment transformation cost can be saved.

The invention relates to the related technical field of security and protection monitoring, and discloses an intelligent security and protection monitoring device capable of regulating and controlling the visual field range, which comprises a base, a shell is rotatably arranged on the upper side of the base, a first rotating shaft is fixedly arranged in the shell, and the lower end of the first rotating shaft rotates in the base. Two cameras are arranged on the two sides of the outer portion of the shell respectively, an orientation adjusting assembly is arranged in the base, and two angle adjusting assemblies are symmetrically arranged in the shell. According to the invention, small-range azimuth adjustment or large-range azimuth adjustment can be carried out through the azimuth adjustment assembly, so that the range of azimuth adjustment of the two cameras can be adjusted and controlled according to requirements, and the field of view can be adjusted and controlled; and then the two angle adjusting assemblies are controlled to be started at the same time or one angle adjusting assembly is started, so that the angles of the two cameras can be adjusted at the same time, or the angles of the two cameras are made to be different, and the view field can be expanded.

According to the efficient turning device for the automobile transmission shaft, damping assemblies close to each other are arranged on the two sides of a tool base, so that the tool base drives the damping assemblies to move synchronously in the moving process, effective supporting points of the transmission shaft are further increased in cooperation with traditional fixing points at the two ends of the transmission shaft, and a small supporting distance is formed for the transmission shaft; by means of the small supporting distance, most turning force can be limited within the small range when the cutting knife turns the transmission shaft, generated forced vibration is buffered, the amplitude is reduced, the turning force is stabilized, and therefore the surface roughness of the transmission shaft is reduced, the service life of the cutting knife is prolonged, and the supporting distance is small. When the transmission shaft moves, the transmission shaft continuously changes along with the movement of the tool base, so that internal stress generated by cutting of the cutting tool is accumulated and can be more uniformly distributed at all parts of the transmission shaft along with the movement of the damping assembly, and dynamic compensation is carried out.

The invention belongs to the technical field of online steel plate thickness measurement application, and discloses a high-precision online thickness measuring device and a thickness measuring method. When a detected steel plate passes through a detection area, the TOF laser distance measuring sensor is firstly used for carrying out preliminary measurement and positioning, the thickness value of the detected steel plate is roughly determined, then according to the measured thickness value, the industrial camera with the measurement range covering the thickness value is selected for shooting, and small-range accurate measurement is carried out in combination with the point light source. Therefore, the requirement for high-precision measurement of the thickness of the steel plate is met. The device and the method have higher measurement precision and wider detection range, and particularly during high-temperature steel plate measurement and steel plate measurement with larger warping amplitude, the longer measurement distance can play a better role in protecting equipment instruments, so that the service life of the device is prolonged, and the reliability of the device is indirectly improved.

The invention provides a sampling device for shale gas geological exploration, which structurally comprises a movable base, a positioning block, a vertical rod, a height adjuster, a collecting tank and a sampler, and is characterized in that a parallel plate added on the surface layer of the movable base is used as a basis, and four electrifying blocks are used for electrifying a calibration ring on the edge of a vertical through groove; then the calibration ring can scan the edge of the detection hole of the shale through multiple groups of infrared calibration lenses on the circular ring, so that the circle center of the vertical through groove can be aligned with the circle center of the hole of the shale, and if errors exist, error information is fed back to the movable base through an electric signal, so that the movable base can move in a small range according to the error range; the position adjusting effect is achieved, it is ensured that the sampler can be accurately embedded into the hole of the shale in the vertical direction, damage to the edge of the hole of the shale caused by position errors is prevented, and the stability of shale gas sampling is further improved.

The invention discloses an electrical installation and debugging method for a 110kV booster station, and aims to solve the problems of low precision, low efficiency, large potential safety hazard and the like in the aspects of equipment installation, wiring, debugging and the like in a traditional method. A laser positioning technology, a high-precision measuring instrument, electrical wiring software, big data analysis, artificial intelligence, automatic testing equipment, a perfect quality control and safety management system and the like are used; the installation precision is greatly improved, the wiring is optimized, the debugging efficiency and accuracy are improved, the quality control is enhanced, and the safety guarantee is enhanced. According to the method, the equipment installation precision error can be controlled within an extremely small range, the bus contact resistance is reduced to below 1 / 3 of that of a traditional mode, the cable fault checking time is shortened by more than 60%, the debugging time is shortened by 30%-40%, the data accuracy is improved by more than 95%, and the comprehensive construction cost is reduced by 10%-15%. The device is suitable for electrical installation and debugging engineering of various 110kV booster stations.

The invention relates to the technical field of optical equipment testing, and particularly discloses a large-caliber large-range second-of-arc intense laser multi-optical-axis parallelism testing machine which comprises a light pipe body, a light inlet and a light outlet, a supporting table is arranged at the end, close to the light inlet, of the light pipe body, and a three-dimensional adjusting frame is installed at the top of the supporting table; a focal plane observation system is installed in the light outlet, a two-dimensional adjusting frame is installed at the end, close to the light outlet, of the light pipe body, and a trepanning diaphragm plate is installed at the top of the two-dimensional adjusting frame. A second driving assembly is installed at the end, away from the rotating table, of the lifting table, a first driving assembly is installed at the end, below the second driving assembly, of the bottom plate, and a third driving assembly is installed at the end of the inclined plate. According to the invention, a series of structures are arranged, so that the testing machine can carry out large-aperture multi-optical-axis synchronous testing, manual or servo numerical control operation is carried out by means of the three-dimensional adjusting frame, the position of a to-be-detected product is adjusted, large-range and small-range precision adjustment is satisfied, and the testing precision is improved.

The invention discloses an antenna control method, system and device and a computer readable storage medium, and relates to the technical field of communication, and the method comprises the steps: obtaining a target position of a terminal device; generating mechanical platform control information and beam forming control information according to the target position; performing angle control on the mechanical platform according to the mechanical platform control information; performing angle control on the beam forming chip according to the beam forming control information; wherein the mechanical platform is used for carrying out horizontal rotation and / or pitching rotation on the antenna array; and the beam forming chip is used for performing phase control and / or amplitude control on the antenna array. According to the invention, large-range coarse adjustment of the horizontal angle and / or the pitching angle of the antenna array can be carried out by means of the mechanical platform, and small-range fine adjustment of the antenna array can be carried out by means of the beam forming chip, so that the antenna array can flexibly send beams to the terminal equipment, the beam width limitation of a small-size array is broken through, and the antenna array can be flexibly and accurately adjusted. And the signal quality of the terminal equipment is improved.

The present application belongs to the technical field of remote sensing image intelligent processing, and particularly relates to a sample-optimized passive microwave data seamless reconstruction deep learning method. The present application acquires passive microwave data with track gap loss, fully utilizes the periodicity of the track gap and the spatial complementarity of adjacent time phases, optimizes samples through a small-range loss sample interpolation generation method and a single-cycle mask strategy, fuses U-net and Transformer to construct a multi-time phase feature connection reconstruction network model, realizes seamless reconstruction, and obtains remote sensing data with continuous distribution and seamless connection between the reconstructed area and the original area. The present application effectively solves the limitation that the existing deep learning reconstruction method has obvious "seam" marks in the reconstruction result when the sample quantity is small and the sample features are not rich enough, and is suitable for the reconstruction of all passive microwave image data or quantitative parameter data with track gaps, which will play an important role in the spatial complete monitoring of global or regional scale passive microwave data.

The present invention relates to the technical field of servers, and in particular relates to a server configuration debugging method, system and device, a medium and a computer program product. The server configuration debugging method comprises: a receiving step of receiving a debugging configuration releasing message, wherein the debugging configuration releasing message comprises a debugging configuration entry, and the debugging configuration entry comprises a key, a value and a effectiveness rule; a query step of querying whether there is a predetermined key in the debugging configuration entry; a determination step of judging, when the predetermined key is found, whether the effectiveness rule is satisfied; and a reading step of reading the value when the effectiveness rule is satisfied. Configuration debugging verification may be carried out in a very small range. When there is a problem in the configuration, the risks may be greatly reduced, thereby preventing a wider impact range.

The invention discloses a convenient-to-position camera for virtual shooting, and relates to the technical field of cameras, a shooting component comprises a camera, the bottom of the camera is movably connected with a second limiting plate, the bottom of the second limiting plate is rotatably connected with an adjusting mechanism, the bottom of the adjusting mechanism is fixedly connected with a first limiting plate, and the first limiting plate is fixedly connected with a second limiting plate. According to the invention, through the arrangement of the shooting part, before the camera is used for shooting, when the shooting position of the camera needs to be rotationally adjusted, the first limiting plate is rotated, and the first limiting plate is rotated on the supporting block through the limiting mechanism, so that the shooting position of the camera is adjusted; and meanwhile, when the shooting range of the camera is subjected to large-range movement adjustment and small-range micro adjustment needs to be carried out, the second limiting plate is rotated through the adjusting mechanism by rotating the second limiting plate.

The projection unit (30) projects pattern light (50) into a range in which the field of view of the first imaging unit (10) and the field of view of the second imaging unit (20) overlap. The measurement unit (404) measures the distance to the measurement surface on which the pattern light (50) has been projected on the basis of the parallax between the first image obtained by the first imaging unit (10) and the second image obtained by the second imaging unit (20). The patterned light (50) includes a plurality of light regions having different hues and a plurality of light regions having the same hue but different brightness, in which a plurality of large-range light regions (51) are distributed in a prescribed pattern, and in each of the plurality of large-range light regions (51), a small-range light region (52) is distributed in a prescribed pattern.

The present invention provides a text adversarial attack method based on Gaussian white noise, belonging to the technical field of natural language processing. First, a natural language text is input into the model. After passing through the word embedding layer, the core layer, and the linear layer, the forward training loss is obtained, and the gradient is obtained through backpropagation. Then, several perturbation terms are added to the gradient of the word embedding vector to generate an adversarial sample, and the forward calculation of the loss value is continued. After multiple iterative trainings, the model can learn the optimal solution within a very small range of changes in the current vector. The perturbation terms prompt the update of the model parameters to move in the direction of increasing loss, achieving the purpose of attacking the model. In this process, the present invention makes the intensity of parameter update have a certain randomness within a set range by adding Gaussian white noise perturbation terms, so that the model has higher fault tolerance performance and improves the accuracy of the model.

The invention belongs to the technical field of equipment calibration, discloses a multifunctional precision calibration platform for an enterprise laboratory, and aims to calibrate different types of calibrated equipment. The high-precision positioning unit can ensure that the relative position error between the calibrated devices is controlled within a very small range, when the calibrated devices counteract the environment vibration, the damping floating device counteracts the environment vibration and suppresses vibration interference, and when the calibrated devices need specific environment temperature and humidity, the damping floating device counteracts the environment vibration and suppresses vibration interference. The temperature and humidity during calibration are adjusted in real time through the temperature and humidity adjusting unit according to the environment temperature and humidity, the platform can be flexibly combined according to the calibration requirements of different instruments, calibration of various laboratory instruments is achieved, the universality and multifunctionality of the platform are greatly improved, and the investment of enterprises in the aspect of calibration equipment is reduced.

The invention relates to the technical field of grounding, and discloses an anti-vibration and anti-damage grounding suspension device for a transformer substation, the anti-vibration and anti-damage grounding suspension device comprises a U-shaped hook and movable openings formed in the two sides of the hook, clamping jaws are hinged in the two movable openings of the hook, and a torsion spring is mounted on a connecting shaft of the clamping jaws, so that the two clamping jaws clamp a cable towards the inner side together; and the inner side of the hook is provided with an elastic component which is in contact with the cable, so that the cable is in contact with the elastic component under the locking of the two clamping jaws, and the vibration of the cable and the damage to the cable can be avoided. The elastic component is of a composite structure, the elastic layer absorbs most vibration impact force through compression and resilience, the elastic metal assists in dispersing stress, and fatigue damage of the cable due to high-frequency vibration is avoided; the upper and lower clamping structures cooperate with the clamping force of the torsion spring, the vibration displacement amplitude of the cable is controlled within a small range, collision with peripheral equipment is prevented, and the fault risk is reduced.

The present invention provides a computer automatic control test method based on the perspective of interlocking route and interlocking function, including: issuing HMI operation instructions to the CBI configuration file at the beginning of the test phase, and the station state changes; changing the state of the relay, signal machine, section and switch according to the changed station state; issuing HMI operation instructions to the CBI configuration file again, and the CBI station state changes; determining that the IO point state is consistent with the expected route state, then passing the test. The present invention solves the defects of the existing single route inspection test with a small range and low accuracy.

The utility model discloses a breeding box for Cordyceps sinensis host larvae, comprising a box body, a chamber is arranged inside the box body, a plurality of sub-boxes with upper openings are slidably arranged inside the box body, culture soil is laid inside the sub-boxes, a through hole for the sub-boxes to pass through is opened on one side of the box body, and a telescopic rod is installed on the lower side of each sub-box. First, the sub-boxes are gradually moved out of the box body by manually pulling a handle, and the sub-boxes move toward the outside of the box body along the through hole, thereby driving the telescopic rods to extend, wherein the telescopic rods not only play a guiding role, but also a supporting role. After the telescopic rods are fully extended, the sub-boxes are also mostly moved out of the box body. Through small-range observation, on the one hand, the loss of temperature and humidity in the box body is reduced, and on the other hand, the sub-boxes are directly moved out of the box body, which is also convenient for observation. Both of them have a small range of sub-boxes, and can obtain accurate data in a short time, thereby speeding up efficiency.