8 results about "Contamination zone" patented technology

This invention discloses a water-based plasma jet cleaning method and apparatus. The method involves collecting multi-modal contamination detection data from the workpiece surface, analyzing the physicochemical properties of the contamination to generate a contamination characteristic spectrum, matching a pre-stored material specification library to generate a discharge safety margin coefficient, and then performing plasma discharge treatment on deionized water under its constraint to generate a plasma-activated water flow, establishing a water-based plasma composite cleaning domain. Multi-path collaborative cleaning flow is generated through decoupling and regulating the jet intensity and water-air ratio. The cleaning effect is monitored to identify residual deviation characteristics, extracting the schedulable margin in lightly contaminated areas to trigger a compensation mechanism, generating cleaning compensation parameters, and constructing an enhanced cleaning configuration. Based on the enhanced cleaning configuration, the cleanliness convergence curve is monitored, and the optimal cleaning termination time is determined by identifying the decreasing convergence slope. Adaptive passivation processing is then performed based on the cleanliness convergence curve, achieving closed-loop adaptive control throughout the entire process, including contamination perception, safety margin configuration, process compensation, and convergence termination.

This invention discloses a machine vision-based method for detecting contaminant residues after duodenoscope reprocessing, specifically in the field of machine vision, to address the problem of accurately locating and removing contaminant residues after existing duodenoscope reprocessing. The method involves applying controlled incident angle, wavelength, and polarization state light perturbations to the outer surface and inner lumen of the duodenoscope, acquiring image sequences under perturbation, and extracting temporal brightness response features of pixel blocks. Brightness difference residuals and consistency weights are calculated at different incident angles to identify candidate abnormal regions and generate a difference map reflecting their response characteristics to a clean baseline. The difference map is segmented, analyzed for connectivity, and clustered. Combining three-dimensional coordinate continuity and surface normal consistency, the three-dimensional spatial boundary of the suspected contamination area is delineated. Within this range, directional cleaning and retesting are performed, with repeated detection until the contamination area disappears, achieving high-precision detection and efficient cleaning.

The application discloses a heat-responsive self-stripping peelable film and a preparation method and application thereof, and belongs to the technical field of gamma contamination removal materials. The heat-responsive self-stripping peelable film comprises the following raw materials: porous adsorption material, dispersing agent, film-forming base, surfactant, thickening agent and colorant. When the heat-responsive self-stripping peelable film is used, only the mixed solution needs to be sprayed or brushed on the radioactive contamination area to wait for film formation, and the film can be self-contracted and peeled off by heating. The gamma contamination removal rate of the heat-responsive self-stripping peelable film on a stainless steel surface reaches 80% to 95%, realizes non-contact automatic peeling without human power and machinery, and avoids the radiation of personnel caused by human peeling and the damage of mechanical equipment caused by high-difficulty operation of mechanical peeling.

The application discloses a kind of based on rotary digging pile technology's contaminated soil directional excavation and ex situ repair integration method.The present application belongs to the cross field of environmental engineering and geotechnical engineering, to solve deep>15m, range<100m 2 The traditional excavation of contaminated soil has high support cost, mud pollution, lack of real-time monitoring and the problem of cutting off excavation and repair, and an integrated system and method are provided.The system includes a rotary drilling rig, a multi-section full protection cylinder assembly, an online detection device and a remote monitoring terminal;The method is: after determining the pollution range, the drilling rig is in place and the detection device is modified, the full protection cylinder is buried, the pollutant data is monitored in real time while drilling to dynamically adjust the excavation parameters, and after excavation, the acceptance is determined, the clay or cement mixed clay is backfilled layer by layer, and the full pollution area is covered by full sleeve hole jumping lap rotary digging.The present application realizes accurate excavation, integrated operation shortens construction period by 50-70%, there is no mud pollution, and the support cost is reduced by 60-80%.

The application discloses a kind of absolute grating ruler pollution area identification and anti-pollution decoding reading method, first acquisition is decoded image and is preprocessed, and enhanced image is obtained;Then boundary detection is carried out to enhanced image, and candidate boundary and its integrity mark are obtained;Again, missing boundary is inserted between adjacent candidate boundary whose interval exceeds preset threshold value, and the integrity mark of missing boundary is determined to form final boundary sequence;Then, according to final boundary sequence, coding area is divided and initial binary coding sequence is generated;Again, according to integrity mark, the coding area of left and / or right boundary marked as broken boundary is judged as pollution area, and the rest is clean area;Finally, with the position index of the coding subsequence of clean area as constraint, in the reference grating coding sequence pre-stored, the candidate coding fragment most matched with initial binary coding sequence is searched in, and it is output as final decoding result;The application improves the decoding robustness and measurement reliability of grating ruler under harsh working conditions.

This invention discloses a collaborative intelligent water quality monitoring method using a dual-platform approach combining a drone and a biomimetic fish. It includes the following steps: The drone subsystem transmits the location and extent information of the initially screened contaminated area, along with spectral data, back to an intelligent remote monitoring platform in real time; a biomimetic fish precision detection task is generated, and the coordinates of the initially screened contaminated area and a preset monitoring path are sent to the biomimetic fish subsystem; the biomimetic fish subsystem collects measured data from the initially screened contaminated area and transmits the collected data back to the intelligent remote monitoring platform; based on the spectral data from the drone and the measured data from the biomimetic fish, data fusion is performed using spatiotemporal registration to obtain the fused contamination concentration inside and outside the contaminated area; an early warning level is automatically triggered according to the water quality anomaly level, and the coordinates of the contaminated area are pushed to the operation and maintenance terminal, completing the early warning response closed loop. This invention not only enables rapid response to pollution events and improves source tracing efficiency but also shortens the monitoring cycle.

This invention relates to the field of pollution detection technology, specifically to a method and apparatus for detecting pollution in golf clubs based on AI image recognition technology. The method includes: preprocessing acquired dual-environment images; performing regional correlation analysis based on the topological characteristics of the golf club structure to extract dual-environment spatial feature images; processing the dual-environment spatial feature images; decomposing the processed images to obtain multiple modal feature components; and inputting each modal feature component into a preset static image parsing channel to obtain dual-environment structured feature data. This invention generates personalized cleaning strategies based on the determined actual pollution point information, including matching suitable cleaning media and cleaning methods, thereby ensuring the targeted and effective nature of cleaning operations and reducing the impact on non-polluted areas.

The utility model discloses a pet defecation flushing device relates to pet article technical field, including drainage mechanism, the top of drainage mechanism is provided with the flushing mechanism, the flushing mechanism includes the column type vertical pole, the top fixed mounting of column type vertical pole has the bottom disc, the top fixed mounting of bottom disc has the water outlet cylinder, the inner chamber fixed mounting of water outlet cylinder has electric control valve, the input of electric control valve is fixedly connected with the water inlet pipe. The utility model discloses the bottom disc annular array of flushing mechanism opens a plurality of water outlets, and water source is controlled after passing through electric control valve, and from water outlet cylinder vertical downward annular flow is passed through water outlet, and even flows down along the outer wall of column type vertical pole, and only need to press the flush button to trigger electric control valve, realizes quick start and stop, and the water flow annular flow and down along the vertical pole, avoids splashing everywhere, reduces ground water stain residual, directly flushes the contaminated area to the characteristic of pet urine adhering vertical pole, improves the cleaning efficiency.