52results about How to "Comprehensive collection" patented technology

The application relates to a full polarization high-gain wide-band conformal antenna, belongs to the technical field of electromagnetic propagation and energy collection, and particularly relates to a full polarization high-gain wide-band conformal antenna and a small-size rectifier circuit. The application conforms to the inner wall of an energy collection box by using an improved structure simple Yagi antenna, expands the working frequency band range of the antenna, is convenient for integration with equipment, and reduces the size of the energy collection device. The application designs an ultra-wide-band and compact structure quadrature coupler which is integrated at the bottom of the device. The quadrature coupler can realize 3db coupling in a wide frequency band range, evenly divides the energy received by each port into two paths, and solves the problem of low efficiency caused by the imbalance of the rectifier link in the prior art. The rectifier is small in size, has a good joint simulation effect, and is convenient for integration. The antenna can work in different radio frequencies and power ranges.

This invention discloses a UAV inspection method and system for bridge bearings. The method includes: planning a strip-shaped flight path and constructing a coarse 3D point cloud model of the bridge; then planning a scanning flight path around the bridge's outer envelope to collect fine point clouds of bridge components; firstly, using a small amount of labeled data combined with pseudo-label generation and knowledge distillation to complete lightweight training of the PointNet model; then, strengthening structural association features through a contextual attention mechanism and generating virtual points using an occlusion region feature completion method to complete the occluded region and obtain a complete bearing point set; finally, extracting bearing geometric parameters by weighted noise point removal, iteratively fitting bounding boxes, and smoothing; planning a flight path based on the bearing's location to collect the bearing's surface image; then performing image cleaning and enhancement processing, and finally identifying surface defects using image recognition methods to generate an inspection report. Comprehensive technical support is provided.

This invention discloses a die-cutting device for corrugated cardboard box production, comprising: a vacuum pump, a dust suction nozzle, a water pump, and an atomizing nozzle. During the production of corrugated cardboard boxes, a large amount of debris and dust is generated during die-cutting. The vacuum pump is activated to draw the dust from the die-cutting area inside the casing into a connecting pipe via the dust suction nozzle, where it is then transported to a dust collection box for centralized storage. Simultaneously, heavier debris automatically falls into a collection box. Since the water pump draws water from a water tank and delivers it through pipes to the atomizing nozzle on the inner wall of the collection box, the atomizing nozzle sprays water onto the bottom of the collection box, effectively wetting the debris that falls into the collection box. This not only prevents secondary dispersion of debris but also allows dust not sucked in by the vacuum pump to fall into the collection box, thus achieving more comprehensive dust and debris collection and protecting the working environment.

The utility model discloses a wooden floor processing grinding and polishing machine which comprises a grinding and polishing shell, supporting plates are arranged at the front end and the rear end of the interior of the grinding and polishing shell, a wooden floor conveying belt is arranged between the two supporting plates, grinding and polishing rollers are arranged at the upper end of the interior of the grinding and polishing shell respectively, and the wooden floor processing grinding and polishing machine further comprises a wood chip collecting mechanism. And the wood chip collecting mechanism comprises dust collecting covers, dust suction pipes and brushing rollers, the dust collecting covers are arranged between the upper surfaces of the two supporting plates correspondingly, and the grinding and polishing rollers are rotationally connected between the front inner walls and the rear inner walls of the dust collecting covers through first rotating shafts correspondingly. According to the wood flour collecting device, wood flour generated during grinding and polishing of the wood floor is collected in a centralized and multi-directional mode, compared with a single dust collection mode, diffusion of the wood flour to the outside can be reduced, wood flour collection is more comprehensive, residues of the wood flour on the surface of the wood floor are reduced, follow-up machining is facilitated, and the quality of the wood floor machining environment is improved.

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.

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 bentonite raw material drying equipment with the dust removal function comprises a first supporting seat, a second supporting seat and a drying machine, a material tank is rotationally connected between the first supporting seat and the second supporting seat, one end of the back face of the first supporting seat is fixedly connected with a first motor, and the inner side of the first supporting seat is rotationally connected with a lead screw; a first movable supporting base is slidably connected into the first supporting seat, a supporting frame is fixedly connected to the top of the first movable supporting base, a stirring mechanism is arranged on the front face of the supporting frame, and a second movable supporting base is slidably connected into the drying machine. The dust collection device is driven by the air cylinder to linearly move in the material tank, the third motor drives the steering ring to rotate, the steering ring further drives the dust collectors, the arc-shaped scraping blocks and other components to rotate together, the dust collectors can comprehensively collect dust on the inner wall of the material tank in the rotating mode, all parts of the material tank are effectively covered, and the dust collection efficiency is improved. Dust dead angles are avoided, and the comprehensiveness and thoroughness of dust collection are greatly improved.

The application provides a multi-finger tactile acquisition device, comprising: a plurality of finger tactile sensing modules and a wrist centralized processing module; the finger tactile sensing module comprises a first wearable base corresponding to a finger tip, a composite silica gel force transmission unit connected with the first wearable base for conducting finger tip contact force, and a finger tip tactile sensing unit for sensing finger tip contact force; the wrist centralized processing module comprises a second wearable base corresponding to a wrist and a processing mainboard, the processing mainboard is packaged in the second wearable base, the processing mainboard is in communication connection with the finger tip tactile sensing unit of the plurality of finger tactile sensing modules through a customized cable, a star-shaped topology network is formed to receive data of finger tip contact force; and the processing mainboard is used for transmitting the data of finger tip contact force to other electronic devices. The problems of multi-channel data acquisition, real-time processing, stable power supply, neat wiring and comfortable wearing are solved, and the overall hand tactile information in complex operation can be comprehensively, synchronously and efficiently acquired.

The utility model provides a kind of active air environment DNA sample collector, it is related to environmental DNA collection field. Including handheld air gun, filter paper and filter paper compression ring, the air inlet end of handheld air gun is provided with the suction nozzle being communicated with handheld air gun;Filter paper is set at the side of suction nozzle away from air inlet end, and is compressed by filter paper compression ring;Filter paper compression ring is detachably connected to suction nozzle. The present application can solve the problems of low collection efficiency, inconvenient operation, poor adaptability, sample contamination and other problems existing in the existing air DNA collection device, provide a kind of active air environment DNA sample collector with compact structure, portable and efficient, strong controllability and convenient replacement of filter medium, solve the shortcomings of traditional fixed position collection, can stay in target habitat area by walking, so as to more comprehensive collection of environmental DNA sample, and the collection efficiency is high.

The utility model belongs to the technical field of building monitoring, and particularly relates to a building safety monitoring device which comprises a supporting mechanism, a monitoring component and a motion driving mechanism. The supporting mechanism comprises a side mounting piece, a bottom mounting piece, a supporting column and a reinforcing piece; the bottom of the supporting column is connected to the bottom mounting piece; the motion driving mechanism is connected to the top of the supporting column; the monitoring part is connected to the motion driving mechanism; the side mounting piece is obliquely connected to the bottom mounting piece; one end of the reinforcing piece is movably connected to the supporting column; the other end of the reinforcing piece can be detachably connected to the side mounting piece; the bottom mounting piece is used for being mounted on a first base surface; and / or the side mounting piece is used for being mounted on a second base plane. The building safety monitoring device can be installed in different assembling environments, and the assembling convenience, efficiency and stability of the building safety monitoring device are improved.

The utility model discloses an on-water garbage collecting device for ecological environment, which comprises a main body unit comprising a main body bin, the bottom surface of the main body bin is fixedly provided with a base, and the main body unit further comprises a power assembly; the cleaning unit is arranged on the top surface of the main body unit and comprises a cleaning part and a collecting part located on the left side of the cleaning part, and the cleaning unit further comprises a telescopic assembly; and the protection unit is arranged in the main body unit and comprises a protection part, the cleaning part comprises two limiting frames fixedly connected to the top faces of the front end and the rear end of the main body bin, and toothed plates are slidably connected to the inner walls of the limiting frames. Through the cooperative work of the cleaning part and the collecting part, when the device works in a large water area, the device can move on the water surface in all directions, and under the condition that garbage is unevenly distributed, the garbage can be rapidly collected in a centralized mode, so that the garbage is collected more comprehensively, and the water area can be cleaned more efficiently in a large range; and the overall cleaning efficiency is improved.

This utility model relates to an installation structure and a range hood for an active noise reduction system of a fume extraction device. The active noise reduction system includes a sound acquisition device disposed in an air duct. The air duct has a first sidewall and a second sidewall opposite to each other in a first direction, and an airflow inlet. The airflow inlet is disposed adjacent to the first sidewall, and at least one sound acquisition device is disposed adjacent to the second sidewall. The sound acquisition device includes a housing and a sound acquisition element. The housing defines a sound propagation channel, which includes a first channel segment and a second channel segment arranged sequentially at an angle. The sound acquisition element is located in the first channel segment, and the housing has a second sound inlet for sound from the air duct to enter the second channel segment. The advantages are: the installation position of the sound acquisition device is reasonably arranged according to the airflow state in the air duct, resulting in good wind noise reduction and thus effectively improving the accuracy of sound acquisition in the active noise reduction system of the fume extraction device.

The utility model discloses a multi-point collection smoke dust detector, which belongs to the technical field of smoke dust detectors and comprises a smoke dust detector body and a sampling component, the sampling component comprises a vertical pipe and a bottom pipe, two guide grooves are arranged on the outer surface of the bottom of the vertical pipe, and the bottom of the vertical pipe is connected with the bottom of the bottom pipe. Through the structural design of the vertical pipe, the bottom pipe and the bearing piece, the filter screen can be conveniently and rapidly disassembled, the disassembly and assembly time is effectively shortened, the operation difficulty is reduced, and the maintenance efficiency of the filter screen is greatly improved; by means of the structural design of the collecting piece, air at multiple point positions can be efficiently sampled, collection of air samples is enriched, representativeness of the air samples is guaranteed, and accuracy of detection data is improved.

The utility model discloses a filter for serum treatment relates to serum processing technical field. The utility model discloses a separable filter shell, the inside of separable filter shell is provided with collection subassembly, and the inside of collection subassembly is provided with filter component, and the inside of separable filter shell is provided with rotating component. The utility model discloses a rotating component can drive collection subassembly and rotate, and the rotating collection subassembly can drive the filter component in its inside and rotate, and the impurity on the circular table filter end can be thrown to the inner wall of collection subassembly under the action of centrifugal force at this time, and the circular table filter end is whole three -dimensional arrangement to make collection subassembly can collect more impurity, and the whole flow rate of circular table filter end is not easily affected, the above -mentioned setting makes when filtering the impurity in serum, need not frequently to the impurity collected in collection subassembly inside and clean up to make when filtering serum, the efficiency can be guaranteed.

This utility model discloses a temperature and humidity regulating laboratory specimen preservation device, belonging to the field of laboratory equipment technology. It includes a cabinet with rotating doors on both sides, and also includes a temperature sensor, a humidity sensor, a small compressor, an ultrasonic humidifier, a condenser dehumidifier, a heater, and a controller for intelligent control. This utility model, by arranging temperature, humidity, and light sensors inside the preservation cabinet, allows for comprehensive and accurate collection of temperature, humidity, and light intensity data within the cabinet. Combined with an intelligent control module, a temperature and humidity regulation module, and a light regulation module, it achieves precise temperature and humidity regulation, ensuring sufficient light intensity for the specimens and maintaining a suitable preservation environment. The controller's intelligent control module automatically controls the temperature and humidity regulation module according to preset temperature and humidity standard ranges, eliminating the need for frequent manual operation and improving the efficiency and stability of specimen preservation.

This utility model discloses a multi-roller speed acquisition device for a textile production line, relating to the field of textile equipment. Its key technical features include: multiple acquisition terminals, each comprising a bracket, an encoder, and a synchronous pulley connected to the encoder's shaft; the bracket is used for mounting on the textile equipment, and the brackets for multiple acquisition terminals can share the same bracket or each use a different bracket; the synchronous pulley contacts the rollers of the textile equipment. This utility model includes multiple acquisition terminals, each corresponding to multiple rollers of a single textile machine or multiple rollers of multiple textile machines. Through the contact transmission between the synchronous pulley and the rollers, combined with the encoder, the speed of each roller is accurately converted into an electrical signal, achieving comprehensive and real-time collection of the speeds of multiple rollers on the production line, providing a complete data foundation for subsequent adjustments.

The invention discloses a liquid collecting bag for shoulder joint surgery and a drape with the liquid collecting bag, and belongs to the technical field of surgical liquid collecting bags. The liquid collecting bag for the shoulder joint operation comprises a liquid collecting bag body, the liquid collecting bag body comprises a bag opening, and the liquid collecting bag is characterized in that the edge of the bag opening is divided into a first section and a second section, the first section is provided with a shielding part, hanging parts are arranged at the two ends of the shielding part, and the second section is located in the big arm direction of a shoulder joint. On the basis of effectively collecting the flushing waste liquid flowing down along the shoulder joint through the bag opening of the liquid collecting bag, the flushing waste liquid reflected and splashed by a surgical incision or the skin of the shoulder joint can be effectively collected through the shielding part in the vertical state. The liquid collecting bag for shoulder joint surgery and the component thereof are simple in structure, can be laid in an arm hanging state, are simple to operate, reasonable in design and easy to manufacture, and are beneficial to clinical application and popularization.

The utility model discloses a wafer cassette internal pollutant sampling device which comprises a fixed seat, a limiting barrel is fixedly mounted on the surface of the fixed seat, a main driving cylinder is fixedly mounted in the limiting barrel, a lifting table is fixedly mounted at the end of an output shaft of the main driving cylinder, and a mounting seat is fixedly mounted at the top of the lifting table. A sampling assembly A, a sampling assembly B, a sampling assembly C, a sampling assembly D and a sampling assembly E are fixedly arranged on the side wall of the mounting seat, a secondary driving cylinder is arranged on the sampling assembly E, a sampling nozzle is fixedly connected to the end part of an output shaft of the secondary driving cylinder, and a stress seat is arranged on the circumferential outer wall of the sampling nozzle. According to the sampling device for the pollutants in the wafer box, the universality of samples sampled by the sampling nozzle is improved; therefore, impurity samples at different positions of the surface of the wafer can be collected more comprehensively, and the distribution condition and the average content of impurities on the surface of the whole wafer can be reflected more accurately. The wafer quality can be evaluated more accurately.

The invention belongs to the technical field of waste gas treatment, and particularly relates to a low-temperature volatilization recovery process and equipment for organic waste gas. Comprising a shell; tube plates are fixedly mounted at the top and the bottom of the shell; a plurality of heat exchange tubes are fixed between the two tube plates; a water inlet cover is mounted at the bottom of the shell; a water outlet cover is mounted at the top of the shell; first circular plates which are uniformly arranged are arranged in the shell; second circular plates which are uniformly arranged are arranged in the shell; two first lead screws are jointly in threaded engagement with the multiple first circular plates; the multiple second circular plates are jointly in threaded engagement with two second lead screws. A rectangular air groove is formed in the side edge of the first circular plate; a circular air groove is formed in the middle of the second circular plate; by arranging the auxiliary assembly, a liquid film can be prevented from forming a heat insulation layer on the heat exchange tube, so that a cold source in the heat exchange tube is in direct contact with waste gas, and the condition that cold transfer is blocked is avoided.

The invention discloses a terminal equipment information acquisition and deduplication method, a client and a server, the method is applied to the client, the client is installed on the terminal equipment, the method comprises the following steps: calling a terminal equipment information acquisition script, identifying the system type of the terminal equipment, and according to the identified system type, determining the deduplication of the terminal equipment; calling a script command corresponding to the system type to collect terminal equipment information; generating standardized terminal equipment information; judging the network state of the terminal equipment; when the network state is offline, storing standardized terminal equipment information to a local cache, and performing periodic cycle detection on the network state of the terminal equipment; when the network state is online, the standardized terminal equipment information is packaged into the data transmission request, the data transmission request is sent to the server side, and the response information of the server side is received, so that continuous, timely, accurate and comprehensive information collection and deduplication management can be performed on the terminal equipment, and the suitability of an operating system of the terminal equipment is improved.

The utility model provides a kind of radiation air conditioner terminal acquisition device, including the independent multiple parameter perception unit for collecting indoor environmental parameters being arranged in indoor, the air conditioning system perception unit for collecting air conditioning system internal operation parameter being arranged in air conditioning system inside, the thermal imaging camera for obtaining indoor heat source being arranged in indoor, the data communication end of thermal imaging camera, temperature and humidity sensor and carbon dioxide sensor, first temperature sensor, first flow sensor, second temperature sensor, second flow sensor is respectively connected with the data communication end communication connection of first central processing module, can obtain the influencing factor condition of influencing radiation air conditioner terminal operation in time, i, indoor environmental parameters, air conditioning system operation parameter, indoor heat source parameter, improve the comprehensiveness of radiation air conditioner terminal information acquisition.

The utility model relates to sample tube bar code recognition, tube type identification technical field, concretely relates to a sample tube bar code and tube type identification device based on machine vision, including frame, install conveying equipment on the frame, conveying equipment adopts track or conveyer belt, is used for driving sample holder moves, and the sample holder is placed with sample tube, and the one side of conveying equipment is equipped with mounting plate, and the mounting plate is equipped with image acquisition module and visual processing board, is used for gathering sample holder bar code information, sample tube bar code information, sample tube's type and whether have the collection of such information as cap, compares with the mode that only bar code information can be identified of current, the information that gathers is more comprehensive and the cost of equipment is relatively lower, and simultaneously still can improve detection stability.

The utility model discloses a gas flow type aerosol LIBS (Laser-induced Breakdown Spectroscopy) spectrum collecting device which comprises a laser, a condensing lens, an aerosol container and a spectrum collector, a vacuum target chamber is arranged in the aerosol container, a plane lens I and a plane lens II are arranged on the aerosol container, laser emitted by the laser device can be focused in the vacuum target chamber through the condensing lens, the aerosol container is further provided with a spraying air nozzle communicated with the interior of the vacuum target chamber, the outer opening end of the spraying air nozzle is used for being connected with an aerosol spraying device, and the spraying axis of the inner opening end of the spraying air nozzle is orthogonal to the focusing optical axis of the condensing lens. A focusing lens is further arranged in the vacuum target chamber, the focusing lens enables gathered LIBS spectrums to penetrate through the plane lens II to the outside of the aerosol container, the spectrum collector is located outside the aerosol container, and the focusing lens is arranged in the aerosol container. And the collecting end of the spectrum collector is positioned on the focusing point of the focusing lens.

The utility model discloses a coal gangue sorting machine bearing temperature abnormality alarm device relates to high -efficient abnormality alarm device technical field, this is the high -efficient abnormality alarm device of loading and unloading workpiece and includes alarm main part, and the data processing module is installed to the alarm main part front side, the utility model, infrared temperature sensor and magnetic attraction contact type temperature sensor double sensor cooperation, cover multiple installation scene, bearing temperature is collected comprehensively and accurately, once temperature is unusual, loudspeaker, green warning light and red warning light alarm quick trigger, make up artificial inspection short board, early warning failure, reduce the risk of equipment damage, guarantee production continuity, integrated microphone and loudspeaker, support local voice interaction, communication module helps temperature data, alarm information remote transmission, make things convenient for operation and maintenance personnel to grasp equipment state in different places, fit intelligent factory management mode, improve operation and maintenance efficiency greatly, reduce artificial patrol cost.

The invention relates to a train high-voltage component monitoring device. The train high-voltage component monitoring device comprises a signal acquisition module and a high-voltage component monitoring module, the signal acquisition module comprises an acquisition sensor and an acquisition circuit, the acquisition sensor is connected with the input end of the acquisition circuit, and the output end of the acquisition circuit is connected with the input end of the high-voltage monitoring module; the acquisition sensor monitors the connected tested high-voltage component to obtain a tested signal; the acquisition circuit detects whether the acquisition sensor successfully obtains the detected signal, sends an alarm signal when the acquisition sensor does not successfully obtain the detected signal, and sends signal data to the high-voltage component monitoring module when the acquisition sensor successfully obtains the detected signal; and the high-voltage component monitoring module detects the signal data, and when the signal data exceeds a preset monitoring threshold value, fault early warning information is sent out. Full coverage of state monitoring of the high-voltage component of the train high-voltage main circuit is achieved, state signals of the high-voltage component can be comprehensively collected, and missing detection of the state signals of the high-voltage component is avoided.

This utility model discloses a grooving device for processing aluminum alloy templates, including a frame; a processing table fixedly connected to the outside of the frame; a grooving assembly fixedly connected to the outside of the frame; and a cleaning mechanism fixedly connected to the top of the processing table. The cleaning mechanism includes a small self-powered fan, the bottom of which is fixedly connected to the top of the processing table. A baffle plate is fixedly connected to the top of the processing table. A limiting slide rail is fixedly connected to the outside of the processing table, and a supporting slider is slidably connected to the bottom of the limiting slide rail. A recycling frame is fixedly connected to the bottom of the supporting slider. This utility model, by setting up a cleaning mechanism, changes the situation where traditional grooving devices for processing aluminum alloy templates generate a large amount of metal coils during grooving operations, which, if not quickly cleaned, can affect subsequent processing operations. It enables rapid cleaning and recycling of these coils, providing convenience for users.

The utility model relates to the technical field of VOCs treatment, and discloses a movable VOCs treatment machine which comprises a vehicle body, the front side surface of the vehicle body is fixedly connected with a storage box, the upper surface of the vehicle body is fixedly connected with a hose communicated with the interior of the vehicle body, and the end, away from the vehicle body, of the hose is fixedly provided with an air suction hood. A lifting plate is slidably connected to the interior of the storage box, a supporting shaft is rotatably connected to the upper surface of the lifting plate, a connecting piece is arranged between the supporting shaft and the air suction cover, and swing of the air suction cover is achieved through cooperation of the supporting shaft, a rotating shaft, a gear, a toothed plate, a reciprocating lead screw, a reciprocating lead screw sleeve, a first motor and other structures; therefore, a larger area can be covered, dead angles caused by dispersion of pollution sources are reduced, VOCs gas can be more comprehensively collected, the treatment efficiency is improved, and the effective coverage range is remarkably expanded.

A ventilation cabinet for a laboratory comprises a cabinet body, a window, a working table top, a lifting cabinet door, an air collecting cover and an exhaust pipe, the window is formed in a panel of the cabinet body, the ventilation cabinet further comprises a first air knife, a bottom plate and a front baffle, the first air knife is installed on the inner wall of the cabinet body above the window, and the bottom plate is of an L-shaped structure formed by bending a head section, a middle section and a tail section; the middle section is fixedly connected to the working table top through a plurality of first guide strips, a first gap is formed between the head section and the cabinet body back plate, a second gap is formed between the tail section and the cabinet body panel, the front baffle is fixedly connected to the cabinet body back plate through a plurality of second guide strips, and one end of the head section is located in the gap between the front baffle and the cabinet body back plate. And the air outlet direction of the first air knife is upward. The ventilation cabinet door opening device is used for solving the problem that poisonous gas floats out of a window when a ventilation cabinet door is opened.

The utility model provides a water ion generator. The water ion generator comprises a semiconductor refrigerator; the dielectric barrier discharge plasma generator covers the cold end face of the semiconductor cooler, the dielectric barrier discharge plasma generator comprises a discharge upper polar plate, a discharge lower polar plate and a dielectric layer between the discharge upper electrode and the discharge lower electrode, the discharge upper polar plate is a patterned electrode, and the discharge lower polar plate is a patterned electrode. The dielectric layer is exposed and is used for collecting condensed water condensed on the cold end surface and exciting the condensed water into water ions. Due to the adoption of the plane structure design, the discharge area is greatly increased, and a traditional point-shaped area of needle tip discharge is changed into a large-area plane area, so that the positive and negative ion generation efficiency is remarkably improved. Meanwhile, the condensation area of the plane structure is far larger than that of the needle point structure, more condensate water can be collected, and the generation amount of water ions is further increased.

The invention provides a body armor damage grade assessment method and system based on energy attenuation inversion, and relates to the technical field of body armor damage assessment, and the method comprises the steps: collecting a stress wave signal, carrying out the preprocessing of the stress wave signal, and obtaining a stress wave effective signal; performing time domain integral operation on the stress wave effective signal to obtain impact initial energy; acquiring a propagation distance according to the spatial distribution parameters of the sensor array; based on an energy attenuation formula and according to the propagation distance, calculating the energy attenuation amount of the stress wave in the impact process; performing structured analysis and feature extraction on a pre-constructed body armor material mechanical parameter library and a historical impact test data set to obtain a sample feature set, and training an energy attenuation-damage grade mapping model based on the sample feature set; and performing energy attenuation inversion on the energy attenuation amount and the initial impact energy according to the energy attenuation-damage level mapping model to obtain the damage level of the body armor.