62results about How to "Realize online collection" patented technology

The invention discloses a machine tool health state rapid checking method. According to the method, a HuaZhong HNC-8 numerical control system is utilized, a sensor is arranged into each position that is required to be checked in a machine tool in advance, and then sampling channel information is configured in an oscilloscope sampling interface; health checking parameters are configured in a diagnosis meson interface of the numerical control system; then machining processes are selected, a circulating start button is pressed down to perform on-line sampling, and the system obtains feature values of sampling information by means of a signal analysis method; finally, comprehensive comparison with standard data is performed, health assessment of the machine tool is performed, and a result is displayed in a graphical mode. By means of the machine tool health state rapid checking method, signals of outer sensors are directly transmitted into the numerical control system through a port of the numerical control system, on-line collecting and analysis can be achieved, a mode of traditional external measurement and off-line modeling analysis is changed, and health checking efficiency, practicability and using range of the numerical control machine tool can be increased.

The embodiment of the invention relates to the technical field of robot control, and discloses a method and a module for distinguishing a load of a six-axis robot. The method for distinguishing the load of the six-axis robot comprises the following steps: according to a preset parameter limiting value of each joint, generating an excitation track of the six-axis robot; when the six-axis robot carrying the load is controlled to run along the excitation track, collecting a parameter running value of each joint; according to the parameter running value of each joint and a preset robot dynamics model, calculating a torque predicting value of each joint; calculating a difference between the torque running value and the torque predicting value, the difference serving as torque produced by the load, and according to preset relationship of the torque produced by the load and a load inertia parameter, calculating the load inertia parameter. The embodiment of the invention also provides the module for distinguishing the load of the six-axis robot. The module for distinguishing the load of the six-axis robot disclosed by the embodiment has the advantage that compared with the prior art, the parameter running value of the robot is collected on line, and the load inertia parameter of the robot is distinguished; because a six-dimensional force sensor is not used, the cost is reduced.

The invention discloses a pipeline natural gas hydrate formation online early-warning device and a method. The online early-warning device comprises an online data acquisition module which is directly arranged at a position of a gathering pipeline, required to be monitored, for tracking and monitoring parameters relevant to the hydrate formation condition on the whole pipeline and realizing online early warning for the hydrate formation and optimization of the injection volume of different types of natural gas hydrate inhibitors finally. According to an online early-warning method, the electrical conductivity and the temperature of the liquid phase as well as the propagation speed of ultrasonic waves in the water phase are monitored to calculate the concentration of the hydrate inhibitor and the saline concentration in the water phase of the monitored point, and the acquired parameters such as gaseous phase pressure, gaseous phase components and temperature are also considered to realize online early warning and the optimization of the injection volume of the inhibitor.

The invention discloses a permanent magnet synchronous motor parameter identification system based on an improved least-squares method. The real-time resistance value, the real-time inductance value and the real-time permanent magnet magnetic chain value of a permanent magnet synchronous motor are identified through a permanent magnet synchronous motor parameter collecting system and a control system by using a parameter identification algorithm based on the improved least-squares method. The identification system comprises a permanent magnet synchronous motor parameter collection system, a permanent magnet synchronous motor control system and a parameter identification algorithm, wherein the permanent magnet synchronous motor parameter collection system comprises a voltage collector, a current collector and a rotating speed collector; the voltage collector, the current collector and the rotating speed collector are connected with a tested permanent magnet synchronous motor through data transmission wires; the permanent magnet synchronous motor control system uses a sine wave vector control system with the direct axis current id being 0; and the parameter identification algorithm uses the permanent magnet synchronous motor parameter identification method based on the improved least-squares method. The permanent magnet synchronous motor parameter identification efficiency can be improved; the identification speed is accelerated; and the parameter identification accuracy can be ensured.

The invention provides an online collecting and monitoring device for diesel engine lubricating oil. The online collecting and monitoring device comprises a sampling tube, an oil outlet tube, a residual gas treater, a micro pump, a sampling circulating valve, a micro radiator, a heat exchange switching valve, an oil sample collecting switching valve, a heat exchange temperature sensor, a sample temperature sensor, an oil quality sensor, a particle content sensor, a sampling bottle, a liquid level sensor, a signal processing device and a displayer. One end of the sampling tube is connected with a diesel engine oil return tube, one end of the oil outlet tube is connected with an oil tank of a diesel engine, and then a new lubricating oil collecting and monitoring bypass is formed on the basis of an original circulating loop of the diesel engine and the oil tank. The online collecting and monitoring device can complete collecting of lubricating oil of any type of diesel engines and monitoring of the frictional wear state of the diesel engines online in real time, the accuracy of collected oil samples and monitoring data is guaranteed, major failures of the diesel engines can be avoided in time, and property loss can be reduced.

The invention relates to a broadband signal transmission system of a high-potential environment based on wireless transmission, which belongs to the technical field of the high-voltage testing equipment and measurement. The broadband signal transmission system comprises: a sensor which is used for receiving an original signal of a broadband signal to be transmitted and transforming the original signal into a voltage signal; a remote unit which is used for receiving the voltage signal and obtaining a digital signal through analog-to-digital conversion, is connected with the sensor and is arranged in a high-potential environment; a local unit which is used for receiving the digital signal and transmitting the digital signal to a remote computer; and a remote computer which is used for receiving the digital signal from the local unit, displaying the waveform of the original signal received by the sensor, storing the waveform, and completing data storage and analysis. When matched with a proper sensor probe, the signal transmission system of the invention can realize the measurement of physical quantities of the high-potential environment such as the voltage, current, electromagnetic field, power, temperature and the like, and can realize the long-term all-weather online data acquisition and transmission in the harsh natural environment and electromagnetic environment.

The invention provides a test device and test method for platform formation performance under an ultralow temperature, and relates to the technical field of metal plate performance test. In order to solve the problem that an existing test device cannot be used for acquiring deformation information and mechanical property of a metal plate under the ultralow temperature and a complicated stress state, the test device comprises an ultralow temperature cooling system, a deformation test system, a heat preservation box, a cooling agent recycling device, an exhaust device, an on-line acquisition system and a computer control system, wherein the heat preservation box is used for preserving heat, the exhaust device is used for sucking mist in the heat preservation box out of the box via an exhausthole, the cooling agent recycling device is used for recycling a remaining cooling agent via a liquid discharging hole after test, the ultralow temperature cooling system is used for providing different test low temperatures required by the metal plate via a liquid inlet hole, the deformation test system is used for fixing the metal plate and performing complicated stress test on the metal plateby the plate formation device, and the on-line acquisition system and the computer control system are used for monitoring in real time and recording a test parameter. The test device is used for performing performance test on the metal plate.

The invention discloses a fuel cell water distribution visual on-line detection system which comprises a main controller, a visual fuel cell, a humidity sensor, an image acquisition module, an image processing module, an analysis and diagnosis module, a terminal display device and a terminal database. According to the characteristics of a fuel cell, the image acquisition and processing is carried out on the fuel cell, thus fuel cell liquid water distribution data is extracted, then the fuel cell liquid water distribution data is analyzed and diagnosed through the analysis and diagnosis module, a dynamic water distribution map is established to study the working state of the fuel cell, the water distribution information of the fuel cell is characterized and displayed in real time, key factors which affect the performance and life of the fuel cell are analyzed, and a reasonable fuel cell water management strategy is made.

The invention relates to a residual sand collection and treatment system of a 3D printer in the technical field of sand removal of the 3D printer. The residual sand collection and treatment system of the 3D printer comprises a plurality of material receiving grooves which are arranged on a sand paving printing station and are used for collecting the scraped sand in all working boxes and a plurality of dry hand-held sand suction guns which are arranged on a sand cleaning station and used for sucking away sand in all working boxes. The residual sand collection and treatment system of the 3D printer is characterized in that a material outlet at the bottom of each material receiving groove is connected with a material sucking pipe, the material sucking pipe and the sand suction guns are respectively connected to a sand suction main pipeline through a material suction branch pipe and a sand suction branch pipe, the other end of the sand suction main pipeline is sequentially connected with a dust remover, a suction pipeline and an exhaust fan, the lower part of the dust remover is provided with a sand discharging opening, and the sand discharging opening is sequentially connected with a material collecting tank and a screening machine. According to the residual sand collection and treatment system of the 3D printer, the process of collecting and recycling the residual sand is provided for the working boxes of a plurality of printing stations through the negative pressure pneumatic conveying technology, and the problem that the residual sand and the scattered sand could not be cleaned up in time in a sand mold 3D working process and a sand cleaning station sweeping process is solved.

The invention relates to an indoor rainfall simulation experiment device. In the field of geotechnical engineering, an experiment device which is suitable for simulating a minitype pile reinforced expansive soil landslide test under various rainfall conditions is not available yet. The indoor rainfall simulation experiment device comprises a rainfall path control system and a water supply system, wherein the rainfall path control system comprises a main transmission device and an auxiliary transmission device; the main transmission device comprises a rectangular fixed frame; a screw rod is vertically arranged on a group of opposite frames of the fixed frame; the auxiliary transmission device comprises a fixed bearing plate which is provided with a ball screw; a sliding table of the ball screw is provided with a rainfall spray head; the fixed bearing plate is vertically fixed under the screw rod by a ball screw nut; a stepping motor is controlled by the path preset by a computer, so that the rainfall spray head can move along the specified path in the XOY plane. The indoor rainfall simulation experiment device can simulate various rainfall paths, can be used for adjusting the rainfall intensity to achieve even rainfall, and can complete the automatic online acquisition of the rainfall capacity and the rainfall time.

The invention provides a heat exchanger energy efficiency online detection device. The heat exchanger energy efficiency online detection device comprises a flow detection apparatus, a temperature detection apparatus, a differential pressure detection apparatus and a host data processing apparatus, wherein the flow detection apparatus is adapted to detecting medium flows in hot medium and cold medium inlet pipelines, the temperature detection apparatus is adapted to detecting medium temperatures in hot medium and cold medium inlet and outlet pipelines, the differential pressure detection apparatus is adapted to detecting medium pressure differences between the hot medium and cold medium inlet and outlet pipeline, and the host data processing apparatus is connected with the flow detection apparatus, the temperature detection apparatus and the differential pressure detection apparatus and is adapted to performing processing conversion and calculation display on the detected medium flows, the temperatures and differential pressure signals. According to the invention, the heat exchanger energy efficiency online detection device can realize online acquisition of such basic data of a heat exchange as the flow, the temperature and the pressure difference, the operation and application of the heat exchange are not affected, and the heat exchanger energy efficiency online detection device is applied to rapidly determining an energy efficiency value of the heat exchange and determining the heat transfer capability of the heat exchange as a determining basis of maintenance work of the heat exchange.

The invention discloses an online sampling device and an online sampling method for an X-ray fluorescent spectrograph. The device comprises a sampling pool main body, a motion guide rail, a fixed mass block, a bearing, an overflow pipe, a correcting baffle, a correcting sheet, a test through hole, a sample storage groove, a thin soft rope, a float bowl, a sample inlet pipe, a sample outlet pipe, an inlet valve and an outlet valve. By using the device and method provided by the invention, the online sampling and test of liquid samples are realized, the test efficiency is increased, and the labor intensity of worker is relieved. By adjusting the position of the correcting baffle through gravity and buoyancy, the use of electronic elements is avoided. The device has high safety performance and can be used for testing inflammable and explosive petroleum products. Since the height of the overflow pipe is adjustable, the height of liquid level is adjustable, and further, the distance between an X-ray probe and a sample is adjustable; therefore, the device has certain flexibility in test.

The invention discloses a spacecraft assembly accuracy measurement data online acquisition system and method. The spacecraft assembly accuracy measurement data online acquisition system comprises a lower computer control module, a communication module, an online module, a data acquisition module, a data processing module and a data management module. According to the invention, unified access andmeasurement data online acquisition of an electronic theodolite, a laser tracker and high-precision angle measuring equipment are realized, and automatic calculation of the measurement accuracy is realized through an algorithm library; automatic acquisition of a measurement preset value is realized through reading a three-dimension design model online, which supports rapid making of a measurementplan; the centralized storage of the measurement data can be realized, and the measurement data is associated with the model, the development stage and the process, so that online query and statistical analysis of the data is realized; and the spacecraft assembly accuracy measurement data online acquisition system is constructed by using a B / S architecture, which has the characteristics of convenient deployment and thin client; users can monitor the device through a browser according to permissions; and the measurement function which can only be achieved by the dedicated software deployed by asingle machine in the prior art can be realized, which is convenient for function expansion.

The invention discloses a pairing bearing vibration signal collection device which comprises a motor, a motor support seat, a coupler, a main shaft, a locking ring, a locking screw, a loading space ring and two sets of bearings. The motor is fixed on the motor support seat. A motor shaft is connected on the main shaft through the coupler. The main shaft is provided with the locking ring with a connecting flange. The locking ring is provided with the locking screw which is capable of tightly locking the locking ring on the main shaft. The main shaft is further provided with the loading space ring I which is provided with a flange, the flange is opposite to and connected with the flange of the locking ring. The two sets of bearings support the main shaft and are fixed on the same bearing seat. The loading space ring I relatively contacts a bearing inner ring of the loading space ring. The motor support seat and the bearing seat are fixed on the same base seat. Axial loading force of the pairing bearing vibration signal collection device is loaded on the loading pace ring I. The pairing bearing vibration signal collection device effectively avoids interference on vibration signal collection, and the interference is caused by utilizing a plurality of support bearings. The pairing bearing vibration signal collection device has the advantages of being simple in structure and design, small in size, convenient to process and assemble and the like.

The invention discloses a loss assessment method based on a video image, and the method comprises the steps: obtaining case reporting information and an insurance identification corresponding to an insurance case reporting request when the insurance case reporting request transmitted by a client terminal is received; obtaining a target insurance policy corresponding to the insurance identifier, setting a case item according to the target insurance policy, and allocating a corresponding survey terminal to the case item; when a processing instruction fed back by the survey terminal based on thecase item is received, sending the processing instruction to the client terminal; when a loss assessment video sent by the client terminal is received, identifying the loss assessment video to obtaina first loss assessment limit corresponding to an insurance mark in the loss assessment video, and sending the loss assessment video to the survey terminal; and when a second loss assessment quota fedback by the survey terminal is received, determining a target loss assessment quota according to the first loss assessment quota and the second loss assessment quota and sending the target loss assessment quota to the client terminal. The invention further discloses a loss assessment device and equipment based on the video image and a storage medium. According to the invention, the survey and loss assessment efficiency and accuracy are improved.

The invention discloses a bridge cable corrosion all-weather online monitoring system and method, and the monitoring system comprises an integrated communication box and a monitoring integrated box, the monitoring integrated box is attached to a non-protective coating of a cable, and the integrated communication box is electrically connected with the monitoring integrated box for signal data collection. According to the invention, the corrosion rate state of the bridge cable can be monitored online in real time around the clock, and online acquisition of corrosion data in the service process of the bridge cable is realized.

The present invention relates to capillary electrophoresis multidimensional equipment. Said equipment includes the following components: an electrophoretic bath body, a capillary tube and a high-voltage DC power supply. Said invention also provides the concrete structure of the above-mentioned every component and connection mode of all the above-mentioned components.

Lightweight is an important measure for energy conservation, emission reduction and environmental protection, engineering plastics and composite materials belong to typical lightweight materials and have the advantages of small density, high specific strength and specific modulus, corrosion resistance and the like, and more and more plastic and composite material parts exist in equipment. Detection and maintenance of equipment are one important aspect of intelligent manufacturing, but the development level is far behind the intelligent manufacturing of production equipment, and technologies related to equipment maintenance need to be vigorously developed. The invention relates to a damage monitoring and online maintenance system for a plastic and composite material structure, which can be used for carrying out damage identification, evaluation, positioning and repair on plastic and composite material parts in equipment such as transportation equipment, mining equipment and an offshore platform, and is particularly suitable for situations such as toxic, harmful and dangerous environments which are not suitable for human operation. The system has the advantages of high applicability, high intelligent degree, low cost and the like, logistics supply and storage pressure can be greatly reduced, and development of an intelligent manufacturing industry is promoted.

The invention discloses a volatile oil crystal extraction system, and relates to the field of pharmaceutical equipment. A product is separated by a variable temperature crystal oil-water separator. The variable temperature crystal oil-water separator can deeply cool an oil-water mixture in an oil-water mixture descending process, promotes an oil phase component to be condensated into crystals, andthe crystals enter a filter device along with an aqueous phase and are separated. The volatile oil crystal extraction system is suitable for collecting materials that can form crystals at low temperature, is simple and convenient to operate and high in separation efficiency, can realize online collection of the materials and saves manpower and material resources. The invention relates to an essential oil production assembly line, wherein the essential oil production assembly line comprises the volatile oil crystal extraction system, has high extraction efficiency for essential oil and can realize the high-efficiency production of essential oil products.

The invention discloses an on-line detection system for a main speed reducer assembly test. The on-line detection system comprises a measurement and control cabinet, a plurality of PLC switching cabinets and a detection device; the measurement and control cabinet comprises an industrial personal computer and a display; the PLC transfer cabinet comprises a PLC module and a signal conditioning module; the detection device comprises a noise sensor, an infrared temperature measurement sensor and a pressure sensor which are respectively installed at corresponding positions on a test bed for testinga main speed reducer assembly and connected with the input end of a signal conditioning module, the output end of the signal conditioning module is connected with a PLC module, and the PLC module anda display are both connected with an industrial personal computer. The system realizes the functions of online acquisition, storage, printing and the like of test data, the test data is real, and theinfluence of human factors is avoided; abnormal phenomena in the test process can be timely alarmed, so that the expansion of accidents is avoided; meanwhile, an operator does not need to monitor ina test room, man-machine isolation is achieved, potential safety hazards are eradicated, and the intrinsic safety of the process is improved.

The invention discloses a thermosetting composite material, especially a fiber-reinforced thermosetting composite material. The material has the advantages of small density, high specific strength and specific modulus, good impact toughness, corrosion resistance, good molding processing performance and the like, and the application of thermosetting composite material parts is more and more. Detection and maintenance of equipment are important aspects of intelligent manufacturing, but the development level of the equipment is far out of the intelligent manufacturing of production equipment, and technologies related to equipment maintenance need to be vigorously developed. The invention relates to a damage monitoring and online maintenance system for a thermosetting composite material structure. The system can be used for carrying out damage identification, evaluation, positioning and repair on thermosetting composite material parts in equipment such as aerospace, transportation equipment, mining machinery, offshore platforms, power generation facilities and the like. The system is particularly suitable for the situations such as toxic, harmful and dangerous environments which are not suitable for human operation, has the advantages of high applicability, high intelligent degree, low cost and the like, can reduce logistics supply and storage pressure, and has wide engineering application prospects.

The invention belongs to the technical field of environmental protection, and particularly relates to a device and method for online collection of an atmospheric fine particulate matter concentrated solution and measurement of heavy metal elements. The device comprises a float flowmeter, a concentrated airflow vacuum pump, a main airflow vacuum pump, a drying pipe, a mass flow controller, a collision type PM2.5 cutting head, a condensation system machine, a water tank, an electric heating rod, a virtual cutter, a biological sampling bottle, two micro-injection pumps, an automatic sampler, an inductively coupled plasma mass spectrometer and the like. According to the device, particulates are blended into liquid through links of sampling, condensation, concentration and the like, so that the concentration of the particulates is improved by one order of magnitude, the concentration effect is better than that of similar products, and the problems of sample pollution, high reagent loss and the like in a traditional filter membrane collection monitoring method are effectively avoided; and the concentration technology and an inductively coupled plasma mass spectrometry are combined to measure the heavy metal, the detection rate can be greatly increased, the sampling time can be greatly shortened, artificial intelligence atmospheric particulate online detection is possible, and the device and method can be widely applied to environment monitoring.

The invention discloses an online collection ionization device and method for cigarette smoke. The online collection ionization device for cigarette smoke comprises a cigarette holder, a suction module, a suction gas path, a sampling gas path, an ionization cavity and an ionization module, the cigarette holder is communicated with the suction module through the suction gas path, and the sampling gas path is communicated with the suction gas path, and the ionization module is communicated with the sampling gas path through the ionization cavity. According to the invention, online collection of fresh flue gas is realized; smoke collection and ionization processes are organically fused and simultaneously carried out, so that a powerful tool is provided for real-time online analysis of cigarette smoke; through the design of a plurality of components between the suction gas path and the sampling gas path, the suction capacity of the suction module is not influenced while smoke is collected, the accuracy and stability of puff-by-puff suction can be ensured, and the sample introduction and ionization stability of the ionization cavity can be ensured; the device is high in universality and can be adapted to various instruments or equipment for separation analysis based on the ionic state.

The invention provides a cable trench operation and maintenance monitoring system which comprises at least one Mojie node sensor, an Internet of Things (IOT) gateway, a server, a mobile terminal and adistribution network operation and maintenance system, wherein each Mojie sensor comprises a temperature probe, a gas probe, a smoke probe and a liquid level probe, the temperature probe is used formeasuring ambient temperature and cable joint temperature, the gas probe is used for measuring the volume concentration of combustible alkane gas, the volume concentration of hydrogen sulfide H2S gasand the volume concentration of carbon monoxide gas, the smoke probe is used for monitoring the volume concentration of smoke, and the liquid level probe is used for measuring a liquid level depth. Each Mojie sensor is used for obtaining measurement data and sending the data to the IOT gateway. The IOT gateway sends the above data to the server. The terminal and the distribution network operationand maintenance system are used for reading the data from the server. According to the system, a cable trench is continuously monitored online through the sensor, and the problem that the cable trenchcannot be continuously monitored in the prior art is solved.

The invention relates to the technical field of transformer monitoring and particularly relates to a transformer voiceprint vibration monitoring system based on the Internet of Things technology. The system comprises a plurality of vibration sensors, three PT transformers, three CT transformers, a neutral point current sensor, a multi-channel acquisition board, a communication module and a server, wherein a plurality of vibration sensors are distributed and installed on the transformer shell, the neutral point current sensor is coupled with a neutral line to monitor current signals in the neutral line, and the plurality of vibration sensors, the three PT transformers, the three CT transformers and the neutral point current sensor are all connected with the multi-channel acquisition board; and the multi-channel acquisition board is in communication connection with the server through the communication module. The transformer vibration voiceprint acquisition system is advantaged in that vibration signals of the transformer shell are acquired through the vibration sensor, the multi-channel acquisition board acquires the vibration signals and sends the vibration signals to the server, online acquisition of transformer vibration information is achieved, and the server performs data processing and analysis to obtain the vibration voiceprint of the transformer.

The invention relates to a movable straw incineration device. The movable straw incineration device comprises a vehicle body, a combustion furnace, a driving mechanism, a conveying mechanism and an air blowing mechanism; the vehicle body is hollow, the combustion furnace is arranged in the vehicle body, the driving mechanism is arranged on the vehicle body, the conveying mechanism is arranged at one end of the vehicle body, and the air blowing mechanism is arranged in the combustion furnace. According to the movable straw incineration device, movement of the vehicle body is achieved through the driving mechanism, straws are conveyed into the combustion furnace through the conveying mechanism to be incinerated, air blowing is conducted in the combustion furnace through the air blowing mechanism, and a better incineration effect is achieved, and compared with an existing straw incineration device, the movable straw incineration device has the advantages that through linkage of a drivingassembly and a conveying assembly, and the online collection and incineration of the straws are realized; compared with an existing air blowing mechanism, the mechanism has the advantages that automatic air blowing is achieved through linkage of a mechanical structure when the vehicle body moves, an independent driving source is not needed, and energy is saved.

The invention relates to a mining while-drilling type borehole track detection method and system and a drill rod. The method comprises the following steps that 1, a posture detection device on the drill rod is triggered, and when the posture detection device is triggered, detected posture information is encoded, and elastic waves including the encoded information are transmitted and transmitted back through a reverse path of a borehole; and 2, the elastic waves including the encoded information are received, the elastic waves are analyzed, and the corresponding posture information of the drill rod is obtained. The posture detection device is arranged on the drill rod and comprises a CPU, a battery, an encoding and decoding unit, a posture detection sensor and an elastic wave transmitting module. The mining while-drilling type borehole track detection system comprises a measuring host and the drill rod. The measuring host is in drive connection with a first elastic wave receiving and transmitting module used for transmitting and receiving the elastic waves. According to the borehole depth detection method, online borehole track detection can be achieved.

The invention belongs to the technical field of environmental protection, and particularly relates to a device and method for on line concentrating and collecting atmospheric aerosol and measuring small molecular organic acid. The device comprises a float flowmeter, a concentrated airflow vacuum pump, a main airflow vacuum pump, a drying pipe, a mass flow controller, a collision type PM2.5 cutting head, a condensation system machine, a water tank, an electric heating rod, a virtual cutter, a biological sampling bottle, two micro-injection pumps, an automatic sampler, an inductively coupled plasma mass spectrometer and the like. According to the device, particulates are blended into liquid through links of sampling, condensation, concentration and the like, so that the concentration of the particulates is improved by one order of magnitude, the concentration effect is better than that of similar products, and the problems of sample pollution, high reagent loss and the like in a traditional filter membrane collection monitoring method are effectively avoided; and the concentration technology and an ultrahigh pressure liquid chromatography time-of-flight mass spectrometer are combined to measure the small molecular organic acid, the detection rate can be greatly increased, the sampling time can be greatly shortened, and the device and method can be widely applied to environment monitoring.

With the promotion of artificial intelligence and industrialization, intelligent manufacturing has become an important development direction. At present, in the aspect of product production and manufacturing, intelligent manufacturing development is rapid, and achievements are abundant. However, in the aspects of operation monitoring and maintenance of equipment, the automation degree is still low. The invention relates to a damage monitoring and online maintenance system for a metal material structure, belongs to the technical field of intelligent manufacturing, and can be used for carrying out damage identification and 3D printing repair on metal parts in production machinery, large mining equipment, special transportation equipment, offshore platforms, aerospace equipment and the like. The system is especially suitable for being used in toxic, harmful and dangerous environments and other situations which are not suitable for human operation, has the advantages of being wide in application range, high in flexibility, high in intelligent degree, high in efficiency and the like, can greatly reduce the pressure of logistics supply and storage, assists the development of the intelligent manufacturing industry in China, and has very wide engineering application prospects.