171results about How to "Accurate collection" patented technology

The utility model provides a kind of monitoring system of photolithography machine internal environment, comprising: photolithography machine;Air circulation air outlet located in the photolithography machine inside;Particle detection device located at the air circulation air outlet, for real-time monitoring the particle contaminant inside the photolithography machine and generating detection data;Data sending module is electrically connected with the particle detection device, for accepting the detection data and real-time transmission to external monitoring equipment;Real-time monitoring and data real-time transmission to photolithography machine internal environment particle contaminant are realized.This enables operator to promptly understand photolithography machine internal air quality condition, provides strong guarantee for the stable performance of photolithography process, improves the automation level and operating efficiency of entire photolithography machine.

The invention relates to the technical field of straightening equipment, and discloses an automatic matching straightening machine for shaft workpieces, which comprises a machine body, a plurality of linear sliding rails for a plurality of mechanisms to linearly move are arranged on the machine body, and strip-shaped tooth grooves matched with moving gears are formed in the two sides of the interior of the machine body; one side of the machine body is provided with a PLC (Programmable Logic Controller) control cabinet for calculating input shaft workpiece data information and generating a control signal, and the PLC control cabinet is used for controlling each mechanism on the machine body in an operation process. By adding and arranging the movable detection mechanism, when the shaft workpiece is straightened, the movable detection mechanism adopts a lever type detection structure, can be tightly attached to the surface of the shaft workpiece, sensitively captures bending deformation information of the workpiece, realizes accurate acquisition of deformation, avoids subjectivity and errors of manual detection, and improves the straightening accuracy of the shaft workpiece. And full-length movement detection can be realized along a linear sliding rail, all parts of the shaft workpiece are covered, and the condition of missing detection of a deformation position is avoided.

The invention discloses a nonlinear support system and a hypersonic velocity sweep / fixed frequency wind tunnel test method, and belongs to the technical field of wind tunnel tests. The device comprises a protection platform, a protection cover, a lifting platform, a vertical mounting plate, a protection cover shoulder split, a test model and a driving mechanism, the test model is mounted at the top of the vertical mounting plate through the driving mechanism, the vertical mounting plate is mounted on the lifting platform, the protection cover is mounted on the protection platform, and the protection cover shoulder split is arranged at the top of the protection cover. The vertical mounting plate and the driving mechanism are arranged in the protective cover; and the test model at the top of the vertical mounting plate extends out of the protective cover shoulder cleft of the protective cover. The technical problem that in an existing hypersonic wind tunnel test, structural nonlinear factors such as gaps, friction and collision between kinematic pairs of an executing mechanism are ignored due to a simplified supporting mode, and consequently the influence of the performance of the executing mechanism in a complex vibration environment cannot be truly reflected by a test result is solved. And a reliable test means is provided for revealing a structural nonlinearity and pneumatic nonlinearity coupling effect rule.

The utility model relates to the technical field of millet winnowing, in particular to winnowing and screening integrated sorghum rice deslagging equipment which comprises a machine body, a screening mechanism, an air supply mechanism and a collecting mechanism, and the screening mechanism comprises a screen, a moving block, a rotating wheel and a motor; the multiple screens are arranged in the machine body in the radial direction. The moving blocks are arranged at the two ends of the screen and are in rigid connection with the screen, and moving grooves are formed in the moving blocks. The rotating wheels are arranged at the two ends of the screen, inserting rods are arranged on the rotating wheels, the rotating wheels at the two ends of the screen are rigidly connected through the inserting rods, and the inserting rods are inserted into the moving grooves. When the rotating wheel rotates, the screen is in a vibration state, and at the moment, the screen can screen the sorghum rice; the motor is used for driving the rotating wheels to rotate and arranged on the outer wall of the machine body and drives other rotating wheels to rotate through a transmission belt. The device reduces the equipment maintenance cost and the shutdown frequency, prolongs the service life, provides stable equipment support for large-scale sorghum rice deslagging operation, and enhances the toughness of an industrial processing chain.

This invention relates to a surface ecological monitoring device and method based on a surface filter, comprising a surface filter body and a monitoring mechanism. The filter body includes a barrel-shaped floating frame fixed by a shore-based support. A filter barrel is elastically connected within the frame. A bottom-driven pump provides intermittent negative pressure, causing the filter barrel to float back and forth. A guide plate, level with the water surface, is located at the end of the floating frame. The monitoring mechanism includes a vision assembly and a computing unit. The vision assembly is positioned above the floating frame, and its support section has a circular array of several monitoring units. Each unit includes a supplementary lighting panel (light-emitting component) and a vision sensor (vision component) located in its center facing the water surface. A reflective section is provided on the surface of the guide plate, allowing the supplementary light to penetrate the water surface and be reflected to the vision component. The computing unit includes an image temporary storage unit, a standard data storage unit, and a comparison calculation unit. The temporary storage unit stores visual images at unit intervals, and the comparison calculation unit extracts images, compares them with standard data, and outputs the results.

This invention discloses a method, apparatus, equipment, and medium for determining the uniformity of a converted-wave observation system. The method includes: determining the target layer depth parameter and the target layer conversion parameter; determining the original conversion point of each original shot-receiver pair in the target layer based on the original shot point position, original receiver position, and target layer conversion parameter of each original shot-receiver pair corresponding to the common shot point; selecting a common conversion point from among the original conversion points, and moving other original conversion points and their corresponding original shot-receiver pairs to obtain new shot-receiver pairs corresponding to the common conversion point; determining the average receiver distance of the common conversion point based on each new shot-receiver pair, and determining the reference common-shot point conversion distance of the common conversion point based on the average receiver distance and the target layer conversion parameter; and determining the converted-wave uniformity of the common conversion point based on each new shot-receiver pair, the average receiver distance, the reference common-shot point conversion distance, and the target layer depth parameter. Embodiments of this invention can determine the uniformity of the observation system and guide the optimization of the observation system layout.

The application discloses a muscle fatigue monitoring system and method based on myoelectric signals and deformation signals. A multi-channel myoelectric signal collector collects multi-channel myoelectric signals of muscles at a monitored part through a flexible array type myoelectric electrode, a multi-channel pre-myoelectric signal amplifier amplifies the multi-channel myoelectric signals, a multi-channel myoelectric signal filter filters the amplified multi-channel myoelectric signals, and a multi-channel post-myoelectric signal amplifier amplifies the filtered multi-channel myoelectric signals. A multi-channel deformation signal collector collects multi-channel deformation signals of muscles at the monitored part through a flexible array type deformation electrode, a multi-channel pre-deformation signal amplifier amplifies the multi-channel deformation signals, a multi-channel deformation signal filter filters the amplified multi-channel deformation signals, and a multi-channel post-deformation signal amplifier amplifies the filtered multi-channel deformation signals. A controller uploads the multi-channel myoelectric signals and the multi-channel deformation signals.

The invention relates to the technical field of visual inspection, and discloses a label surface pattern online detection device which comprises a main body box, detection tables are symmetrically arranged on the upper surface of the main body box, label bodies are placed on the upper surfaces of the detection tables, a supporting frame is arranged above the main body box, and a control box is fixedly installed at the top of the supporting frame; a detection head is fixedly connected to the bottom of the control box, a displayer is fixedly installed on the side face of the main body box, a leveling assembly is arranged above the detection table and comprises movable rolling wheels, the rolling wheels can roll along the surface of the label main body to level the surface of the label main body, and through the leveling assembly, after the rolling wheels are attached to the surface of the label main body, the surface of the label main body is leveled; the rolling device can roll along the surface of the label main body to flatten the surface of the label which may have wrinkles or bends, so that the influence of unevenness of the surface of the label on a detection result is eliminated, the surface of the label is in a flat state, and a detection head can accurately collect information of patterns on the surface of the label.

The invention belongs to the technical field of air-ground cooperative rescue, and discloses a mooring type unmanned aerial vehicle disaster relief system and a working method.The mooring type unmanned aerial vehicle disaster relief system comprises the steps that stable hovering in a complex environment is achieved through an unmanned aerial vehicle by means of a hovering module, releasing and recycling of a robot are accurately controlled through a winch mechanism, and a guiding bin and a UWB recycling positioning sensor are combined; it is ensured that the robot recovery alignment deviation does not exceed a preset threshold value, and the robot delivery and recovery problems are solved; the snakelike robot has excellent complex ruin gap adaptability by means of a multi-section joint structure and multi-sensor fusion, environment data and survivor information are accurately collected, and search and rescue accuracy is improved; the emergency module is used for realizing automatic return flight of the unmanned aerial vehicle, inertial navigation return of the robot or extreme power-saving rescue waiting for faults such as mooring disconnection and signal loss, and the data cache is used for automatically storing key task data, so that task continuity and data safety are guaranteed, and the search and rescue efficiency and reliability in extreme disaster scenes are greatly improved on the whole.

The invention discloses a multi-mode non-contact intelligent early warning monitoring method and system, and relates to the technical field of intelligent medical monitoring. Four core physical sign data including body temperature, heart rate, respiratory rate and body movement are collected in a non-contact mode; filtering and denoising are carried out by adopting an LMS adaptive filtering and moving average filtering combined algorithm; extracting each physical sign characteristic parameter; the early warning level is judged through the improved BP neural network intelligent early warning model; when early warning is triggered, local sound-light alarm is started, and early warning information is synchronously pushed to the multiple terminals. The system not only realizes multi-sign non-contact, real-time and accurate acquisition, strong anti-interference capability, accurate early warning judgment and multi-terminal linkage alarm, is suitable for vital sign monitoring of scenes such as hospital wards and pension institutions, but also solves the problems that traditional contact monitoring is poor in comfort level, easy to cross infection and poor in monitoring effect. And the problems of weak multi-mode fusion capability, poor anti-interference performance and low early warning precision of the existing non-contact monitoring are solved.

This invention relates to the field of perioral muscle function detection technology, and discloses a flexible sensing integrated tongue muscle function detection system and method. The system includes: a brace-type flexible thin-film sensor, a wireless transmission module, and a control module. The brace-type flexible thin-film sensor is configured as a wearable brace structure, and internally contains a sensor array composed of multiple sensing units distributed in the maxillary and lateral tooth regions corresponding to tongue muscle activity. The wireless transmission module is located in the lateral region of the upper molars and is connected to the brace-type flexible thin-film sensor via a flexible printed circuit. The control module is connected to the wireless transmission module and includes a calibration module, an initial value determination module, a correction module, and a data storage and communication module. This invention achieves precise, non-invasive, and real-time monitoring of tongue muscle activity.

A multi-channel microfluidic label-free pathogen detection system and method with internal reference correction is disclosed, relating to the field of pathogen detection. The method includes: acquiring the initial interference spectrum of each functional detection region before the reaction; injecting the sample to be tested and distributing it to multiple parallel microfluidic channels according to a preset flow path; specific binding of the target pathogen to the aptamer to form an aptamer-pathogen complex layer; acquiring the post-reaction interference spectrum of each functional detection region, comparing the post-reaction interference spectrum with the initial interference spectrum before the reaction, and calculating the change in optical path difference of each functional detection region; calculating the target detection signal and comparing it with a standard curve to obtain the concentration of the target pathogen in the sample. This invention achieves continuous, accurate, and repeatable spectral acquisition of multiple functional detection regions, without the need for nucleic acid amplification or labeling, realizing multi-channel parallel, automated acquisition, internal reference correction, and quantitative analysis of pathogen concentration, thus improving the accuracy and reliability of the detection results.

Embodiments of the present application provide a kind of horn cavity test method, equipment, medium and program product, it is related to test technical field or electronic equipment technical field.The method comprises: controlling the horn to emit sound;Through the multiple optical fiber sensors, the sound wave vibration signal in the horn cavity is collected, the sound wave vibration signal is vibration data continuously distributed along the length direction of optical fiber;The sound wave vibration signal is carried out optical signal demodulation processing, and the frequency domain feature of the sound wave vibration signal is extracted;According to the frequency domain feature of the sound wave vibration signal, the sampling parameter of the multiple optical fiber sensors is adjusted, and the frequency domain feature of new sound wave vibration signal is obtained again;According to the multiple frequency domain features obtained by adjusting the sampling parameter of the multiple optical fiber sensors multiple times, the test result of the horn cavity is determined.The method is used to reach the effect of improving the accuracy of horn cavity test.

The present application relates to zero-carbon park management technical field, specifically relates to a kind of multi-source carbon data intelligent management and control method and system for zero-carbon park.The technical scheme includes the following steps: constructing multidimensional perception network, real-time acquisition multi-source carbon related data;And it is preprocessed, obtains carbon data set.Combined with emission source type, obtain park carbon emission evaluation data.Through park carbon emission evaluation data, construct multidimensional zero-carbon park carbon emission evaluation index system, calculate the comprehensive weight and comprehensive evaluation score of each evaluation index.Judge whether the comprehensive evaluation score meets the qualified standard, and combined with park zero-carbon development goal and park carbon emission evaluation data, construct intelligent emission reduction decision model and generate emission reduction scheme.Through data preprocessing algorithm, eliminate abnormal data, fusion multi-source data, improve data reliability;Realize high-precision carbon emission calculation, and calculation error can be controlled in very small range;Effectively improve park zero-carbon transformation efficiency.

The present application relates to the technical field of metal material heat treatment, in particular to a heat treatment furnace device and method capable of controlling temperature and cooling speed, wherein the furnace body is internally constituted as a hearth, the output end of the air supply system is located at the lower region of the hearth through the furnace body; the flow equalizing system is arranged at the lower region of the hearth and is in communication with the output end of the air supply system; the workpiece is placed on the flow equalizing system; the circulation and exhaust system is arranged at the upper region of the hearth and is in communication with the interior of the hearth, the temperature monitoring system is arranged on the circulation and exhaust system and is directly above the workpiece; the control system is electrically connected with the air supply system, the circulation and exhaust system and the temperature monitoring system. The present application effectively solves the problems of insufficient cooling speed and poor cooling uniformity in the prior art.

The invention relates to the technical field of cable force detection, and discloses a flexible photovoltaic support cable force intelligent real-time detection system and method. Comprising the following steps: S01, simulating a bracket digital model; s02, judging whether a cable force real-time regulation and control mode is entered or not; s03, carrying out real-time cable force regulation and control; s04, drawing a time period cable force curve graph and a periodic cable force curve graph; s05, carrying out future cable force regulation and control; according to the invention, the dynamic change of the flexible photovoltaic support can be mapped in real time on a virtual level, the limitation of passive data acquisition under a single point location or a specific point location is avoided, and the cable force change trend of the flexible photovoltaic support in a historical period can be analyzed from a plurality of different dimensions. The cable force abnormity false alarm phenomenon caused by abnormal fluctuation of single-point data at different moments is avoided, and the accuracy of cable force abnormity diagnosis is further improved.

This invention belongs to the field of data processing technology, specifically relating to a method, system, and storage medium for natural resource information management based on AI technology. The method includes constructing a business process; creating corresponding data forms for the business process according to business acceptance rules; sending the data forms to the corresponding approval processing unit; collecting resource information data based on the data forms; and sending the resource information data to a storage management module. The storage management module encrypts and segments the resource information data for distributed storage, and also performs restoration processing on the distributed resource information data to obtain the original resource information data. AI technology is used to analyze and process the original resource information data to determine if any anomalies occur. If anomalies are found, the relevant departments are notified. This invention improves the security of natural resource information data by encrypting, segmenting, and distributing the resource information data.

The utility model belongs to the technical field of lenses, and discloses a lens structure applied to a doorbell, which comprises a lens and a dismounting assembly, and one side of the lens is fixedly connected with an elastic chuck; the dismounting assembly comprises an annular seat and a knob, the knob is rotatably mounted on the annular seat, an insertion groove is formed in the annular seat in the radial direction of the annular seat, a movable rod is slidably inserted into the insertion groove, a pressing rod is fixedly connected to the lower end of the movable rod, and the lower end of the pressing rod slidably penetrates out of an inner ring of the annular seat; according to the lens dismounting device, the dismounting assembly comprises the annular seat and the knob, the elastic clamping head can be extruded to realize quick dismounting of the lens only by rotating the knob and utilizing the transmission of the gradual change bulge to the movable rod and the pressing rod, additional tools are not needed, the operation efficiency is remarkably improved, and the mounting risks such as screw slipping are avoided.

The utility model relates to vacuum ion coating pretreatment equipment technical field, especially vacuum ion coating pretreatment equipment, including device body, device body is provided with connecting mechanism, connecting mechanism contains setting exhaust component on device body upper section, device body lower section is provided with connecting component, device body middle section is provided with cooling assembly. Cooling assembly through the combination of cooling fan and cooling fin, can quickly send away the heat generated by equipment operation, effectively reduce the device body internal temperature, the fixed connection of slide holder and exhaust hood can move with exhaust hood, slide on the fixed slide rod, realize the flexible heat dissipation to device different area. The cooperation of collocation fixed rod, limit spring and L shape frame guarantees the stability when heat dissipation part moves, avoids the influence equipment performance and workpiece pretreatment effect because of temperature is too high, prolongs equipment life, guarantees the continuous and stable development of pretreatment work.

This invention relates to the field of noise testing technology, and particularly to a method and system for testing the noise of electric drive assemblies in new energy vehicles. The method includes: constructing a test platform for electric drive noise; delineating a test area; drawing a traffic network distribution map within the test area; marking all road segments; acquiring real-world images of each road segment; and generating environmental data, wherein the environmental data includes at least: road condition information, type, and traffic flow. Through the test platform, the method obtains data reading permissions for the test vehicle; selects the deployment location of the audio pickup device at the electric drive assembly; collects audio data; locates the real-time position of the test vehicle; and uses a preset timestamp. This invention, by generating a test report, can intuitively display the road segments corresponding to the noise and perform correlation analysis between noise data and road attributes, thereby quickly identifying concentrated areas of abnormal noise and improving the accuracy and readability of noise test results.

A wind tunnel test model structure with a high slenderness ratio belongs to the field of wind tunnel test vehicle design technology. It solves the problems of large vibration amplitude and low data accuracy in existing technologies during testing. Key technical points: The rectifier cap, front cylinder, and front port flange are sequentially bonded together, with the front port flange connected to the front end of the central steel shell; the rear port flange, rear end cylinder, and rear end plate are sequentially bonded together, with the rear port flange connected to the rear end of the central steel shell; a balance sleeve is fitted onto the balance, the central steel shell is fitted onto the balance sleeve, the balance front cone tension plate is connected to the central steel shell, the front end of the balance is connected to the balance front cone tension plate, and the rear end of the balance is connected to the tail end of the balance sleeve. This invention significantly reduces the vibration amplitude of the model structure during testing, avoids damage to the model and equipment caused by resonance, and improves the safety and stability of the entire wind tunnel high angle-of-attack test process; it effectively suppresses the interference of model vibration on measurement results, ensuring accurate and reliable test data acquisition.

This application discloses an endoscope performance testing device, comprising: a base, including a first end and a second end disposed opposite to each other; a first support platform for supporting a test target, the first support platform being coupled to a first drive component, the first drive component being used to drive the first support platform to move between the first end and the second end; a second support platform disposed on one side of the first end of the base, the second support platform being used to support the endoscope to be tested, the endoscope being used to acquire an image corresponding to the test target; wherein, the second support platform is coupled to a second drive component, the second drive component being used to adjust the position of the endoscope; and a control module coupled to the first drive component and the second drive component. Through the above method, this application can improve the accuracy and efficiency of endoscope performance testing.

The invention discloses a thunder and lightning management system and method for a traction power supply network, and aims to improve rapid and accurate monitoring and management of thunder and lightning faults of the traction power supply network, provide stable and reliable low-power-consumption power consumption management and improve the stability and fault processing efficiency of the traction power supply network. An intelligent discharge monitoring device is installed on the overvoltage discharger, and overvoltage signals are collected and wirelessly transmitted to a data monitoring center. The overvoltage signal acquisition module is integrated in the monitoring device to realize signal isolation acquisition. The solar power supply assembly is matched with the micro-power-consumption power management module and comprises a two-stage energy storage structure and various protection chips, so that stable and reliable power supply is ensured. The data monitoring center receives the data, and can locate the fault position, analyze the data and give an early warning. The equipment is distinguished by the equipment ID, the fault is positioned by longitude and latitude, and the operation data is visually processed. Intelligent dynamic monitoring of the traction power supply network is integrally realized, and the stability and fault processing efficiency of the power supply network are improved.

This invention provides a method, device, and system for intelligent power quality sensing, relating to the field of power distribution network technology. The intelligent power quality sensing method provided by this invention calculates power quality data for the line under test using power data collected from the line under test. This power quality data serves as the basis for predicting the changing trends of power data. An intelligent sensing strategy is then employed to manage pre-deployed power quality monitoring micro-applications, thereby adjusting the monitoring frequency and range of the power data for the line under test. This allows for dynamic adjustment of the monitoring granularity of power quality monitoring based on dynamic changes in the power grid, thus ensuring accurate collection of power quality information.

This invention relates to the field of torque testing machine technology and discloses a horizontal torque testing machine, including a machine base, guide rail, drive shaft, slide, chuck, and clamping components. The clamping components are mounted on the chuck, with an air pipe at the outward-facing end of the jaws. Several cylindrical bodies are mounted on a fixed ring via a support plate. An end plate is provided at the end of the air pipe. Several mounting slots are also formed inside the jaws, and locating pins are movably mounted within these slots. The invention also includes auxiliary components. By setting up a clamping component composed of a toothed ring, drive component, and jaws, and movably mounting locating pins within the jaws, this invention allows gas to enter the air chamber when the jaws move towards the surface of shaft-like parts. The cooperation between the air pipe and the cylindrical bodies pushes the locating pins outward and abuts against the uneven surface structure of the shaft-like parts. This enables the machine to adapt to shaft-like parts with different surface structures, achieving reliable clamping without changing the clamps, significantly improving testing efficiency, and avoiding the problem of decreased positioning accuracy caused by frequent clamp changes.

The utility model discloses a financial data acquisition device, which relates to the technical field of financial data acquisition devices and comprises a tilting arm electronic scale, a scanner is arranged above the tilting arm electronic scale, and a light supplement lamp is arranged on one side of the scanner. According to the utility model, character information in images of paper documents such as financial bills, reports and the like can be converted into editable electronic data by using an optical character recognition technology through the scanner, a large amount of paper financial data can be quickly and accurately acquired, and the workload and error rate of manual input are reduced; the electronic scale is used for rechecking the weight change of the inventory goods for cost accounting and inventory management; the warped arm sensor transmits weighing information to the circuit board, the circuit board converts electric signals into digital signals, the digital signals are respectively transmitted to the display screen to be displayed, and the digital signals are transmitted to a computer through the HDMI interface and the HDMI data line, so that finance can record weight changes of reinventory goods. Tediousness of manual input is omitted, and the accuracy of data is improved.

The utility model relates to the technical field of aluminum electrolysis cell guide rod equidistant pressure drop detection, and discloses a high-precision aluminum electrolysis cell guide rod equidistant pressure drop detection device, which comprises a control system box, a touch screen and a mobile detection device, the mobile detection device is connected with the control system box through a 485 communication line, the mobile detection device is arranged in the electrolytic bath, a touch screen is arranged on the outer side of the control system box, the touch screen is connected with the side wall of the control system box in a matched mode through an adaptive screw, and the touch screen is connected with a circuit board in the control system box through a 485 communication line which is the same as the 485 communication line. The high-precision isometric pressure drop detection device for the guide rod of the aluminum electrolysis cell effectively researches a guide rod parameter distributed online detection technology adapted to the space and environment of the electrolysis cell and a technology easy to install and operate, and develops a centralized monitoring control device for the guide rod parameter of the aluminum electrolysis cell, which is low in cost, easy to install, high in precision and high in reliability.

The utility model relates to a distributed intelligent sump oil collecting device which is characterized in that a water surface oil storage tank is arranged in a light water boat, a plurality of mounting seats are arranged on the light water boat, each mounting seat is provided with a sump oil collector, and the sump oil collectors are in transmission connection with steel belt guide wheels through magnetic steel belts. The sump oil collector is communicated with the water surface oil storage tank through a sump oil conveying pipe, collects sump oil through a magnetic attraction steel belt and conveys the sump oil into the water surface oil storage tank, the water surface oil storage tank is communicated with a first oil outlet pipe, a sump oil conveying pump is arranged on the first oil outlet pipe, and the first oil outlet pipe is detachably communicated with a second oil outlet pipe through a magnetic attraction device. The outlet end of the second oil outlet pipe communicates with a ground oil storage tank arranged on the ground of the water collecting well, and the water surface oil storage tank conveys collected dirty oil into the ground oil storage tank through a dirty oil conveying pump. According to the utility model, the sump oil can be automatically monitored, accurately collected and efficiently treated, the recovery efficiency and quality are improved, and the operation cost and manual intervention are reduced.

The utility model provides an elevator hoisting rope detection system which comprises a counterweight device, a hoisting rope detection device and a control device, the counterweight device comprises a counterweight frame and a counterweight buffer, the counterweight frame is connected with an elevator car through a hoisting rope, and the counterweight buffer and the counterweight frame are oppositely arranged; the image acquisition device is arranged close to the hoisting rope and is used for acquiring the state of the hoisting rope; the monitoring device is arranged close to the counterweight frame, the monitoring device is electrically connected with the control device, the monitoring device is used for monitoring the distance between the counterweight frame and the counterweight buffer, and the monitoring device compares the distance with a standard value; according to the elevator, the image collecting device is used for collecting the state image of the hoisting rope, the monitoring device is used for monitoring the distance between the counterweight frame and the counterweight buffer, and therefore the accuracy of judging whether the hoisting rope is lengthened or not can be improved, and the safety of the elevator is improved. And therefore, the running safety of the elevator is improved.

The invention discloses an evaluation analysis method based on the Internet. The evaluation analysis method comprises the following steps: carrying out acquisition processing and storage control on network data; performing data analysis and evaluation processing on the network performance; performing visual display management on the network condition data information; and carrying out identification and early warning on the network operation condition information. According to the method, the acquisition of network data can be more efficient and accurate, subsequent evaluation processing requirements are met, data can be classified, irrelevant data can be cleaned and filtered out, subsequent data evaluation analysis is more efficient and accurate, interference of the irrelevant data is reduced, network performance quality evaluation can be more efficient and accurate, the evaluation range is wider, and the method is suitable for popularization and application. And the evaluation result accords with the actual operation condition of the network. The network condition data information can be visually displayed, and a reliable reference basis is provided for network optimization by a worker according to a network performance quality evaluation result. The method has the characteristics of high accuracy and efficient management analysis.