335results about How to "Short response time" patented technology

The embodiment of the invention provides a printing control method, electronic equipment, a storage medium and a program product. The method comprises the steps that a task queue sent by a non-real-time application kernel is received through a communication protocol, and the task queue comprises a plurality of to-be-processed tasks corresponding to the five-axis laser printing equipment; determining a task type and a real-time requirement level corresponding to each to-be-processed task; according to the task type and the real-time requirement level corresponding to each to-be-processed task, adjusting the task priorities of the plurality of to-be-processed tasks to obtain a task priority queue; determining distributed system resources corresponding to the to-be-processed tasks according to the task priority queue and the current resource state; and executing each to-be-processed task according to the task priority queue and the allocated system resources corresponding to each to-be-processed task. The method is used for achieving the effect of improving the reliability of the printing system.

The invention relates to the technical field of flood control dispatching, and discloses a reservoir flood control water level dynamic control and flood recycling method and system, and the method comprises the steps: obtaining a surface rainfall forecast value of a reservoir basin based on real-time rainwater condition data and numerical weather forecast; a hydrodynamics and hydrology coupled drainage basin runoff model is driven, and an in-reservoir flood hydrograph in a predicted period is generated; judging the flood scale and grade based on the hydrograph, and when the flood is medium and small flood, calculating the dynamic flood control storage capacity of a downstream flood control object by adopting an equivalent flood control effect algorithm taking into account the pre-discharge scheduling capability; according to the dynamic flood control storage capacity, a dynamic flood control water level control value is obtained through backstepping of a water level-storage capacity relation curve of the reservoir; and finally, generating and executing a reservoir dispatching instruction based on the control value, and storing the water level of the reservoir to not exceed the dynamic value. The problems that a fixed flood control water level method is low in water resource utilization rate and inflexible in dispatching are solved, and flood resource efficient utilization on the premise of flood control safety is achieved.

The invention relates to the technical field of information retrieval, in particular to a large-scale semantic retrieval optimization method based on deep learning, which comprises the following steps: acquiring to-be-retrieved text data, and converting the to-be-retrieved text data into semantic vector representation through a deep learning model; carrying out topological structure analysis on the semantic vector representation to obtain topological characteristic information of a semantic space; on the basis of the topological characteristic information, a topological perception hierarchical navigable small-world graph index with a multi-layer structure is constructed, and each layer comprises a node set and a connection relation thereof; dynamically optimizing and adjusting the topology-aware hierarchical navigable small-world graph index according to an actual query mode and system performance feedback; and receiving a query request, converting the query request into a query vector, executing multi-layer navigation search in the topology-aware hierarchical navigable small-world graph index, and returning a retrieval result related to the semantics of the query vector.

The invention discloses a database metadata decentralized storage method, which comprises the following steps of: dividing a global hash space into a plurality of continuous hash value intervals through a consistent hash algorithm, and respectively distributing the plurality of hash value intervals to a plurality of virtual nodes of a server, so that each virtual node corresponds to one hash value interval; the metadata of each data table and the generated time sequence data are forcibly mapped and stored in the same virtual node, so that any operation of the time sequence data on the virtual node can obtain the metadata on the virtual node, and the delay and overhead caused by cross-node remote access to the metadata are avoided; at least two virtual nodes form a virtual node group, and strong consistency and automatic switching of metadata copies are realized in the virtual node group through a Raft protocol; and caching the hotspot data for reducing the response time of the query operation to the minimum by using a multi-level cache system penetrating through the server and the client, and establishing a multi-dimensional index.

The utility model relates to electronic protector technical field, concretely is a kind of TVS device with automatic open circuit protection function, including device body, automatic open circuit protection mechanism and pin connecting mechanism, and automatic open circuit protection mechanism and pin connecting mechanism are fixedly connected in the inside of device body, in the utility model, through the setting of fusible wire, temperature sensor and memory alloy spring, the automatic open circuit protection of TVS device when encountering abnormal overcurrent or overvoltage is realized, fusible wire can rapidly fuse, and timely cut off circuit connection, prevent the further expansion of fault range, temperature sensor real-time monitoring temperature, when temperature abnormally rises, memory alloy spring will rapidly change under the signal driving of temperature sensor, the pressure generated by its deformation can assist fusible wire to fuse more quickly when reaching fusing temperature, greatly shorten the response time of automatic open circuit protection, greatly improve the security and reliability of circuit.

The utility model discloses a portable intelligent substation microstation equipment inspection device, including front end equipment, back end equipment and cloud equipment. Front end equipment is handheld inspection terminal, and integrated main control board, camera, display screen, fingerprint identification, communication interface etc. parts are used for information collection and interaction, and cloud equipment includes equipment information database, fault log record library, solution library, and is connected with front and back end equipment through information interaction module, realizes data storage and scheme calling, and back end equipment includes video processing, state monitoring, fault prediction, personnel scheduling and information transmission etc. module, forms the automation inspection and fault processing process. The device has the advantages of flexible deployment, accurate identification, efficient response, and can improve the intelligent degree of inspection and the substation operation and maintenance efficiency.

The application provides a control method of a COT conversion circuit, the COT conversion circuit and a chip. The COT conversion circuit is used in connection with an output circuit. The method comprises the following steps: when it is detected that the output voltage of the COT conversion circuit is less than a preset first reference voltage, the COT conversion circuit is controlled to enter a pressure boosting state, and the pressure boosting state is reset through a reset signal; at the generation moment of the reset signal, if it is detected that the output voltage of the COT conversion circuit is still less than the preset first reference voltage, the reset signal is disabled, so that the COT conversion circuit remains in the pressure boosting state; and until it is detected that the output voltage of the COT conversion circuit is greater than a preset second reference voltage, the reset signal is enabled, so that the COT conversion circuit ends the pressure boosting state.

The application discloses a kind of integrated hair concentrator multi-fault diagnosis method and equipment, relating to swimming pool water treatment technical field, wherein the method comprises: real-time acquisition inlet, hair filter section outlet, ultraviolet disinfection section import and outlet negative pressure P1,P2,P3 and P4;Calculate filtration pressure drop ΔP1 and disinfection pressure drop ΔP2;And first judge whether P1 is less than safety threshold to trigger anti-adsorption emergency stop;If not, based on the comparison of ΔP1 and ΔP2 and their respective cleaning reference value, accurately distinguish and diagnose hair filter section blockage or ultraviolet disinfection section internal blockage fault;If both are normal, based on radiation intensity, judge the efficiency of ultraviolet lamp tube.Secondly, the equipment includes corresponding negative pressure sensor, controller and actuator, wherein the ultraviolet disinfection section uses integrated built-in scraping type cleaning component.The application realizes the intelligent identification and directional maintenance of multi-stage fault, improves safety, energy efficiency and maintenance convenience.

The utility model discloses a chemical factory raw material reaction mixing device, including fixed frame still includes mixing mechanism, the fixed frame top is provided with mixing mechanism, the mixing mechanism includes mixing box, feed pipe, discharge pipe, horizontal groove, end plate, plug rod, shunt inclined plate and conical shunt piece, the fixed frame top swing joint has the mixing box, the mixing box top is provided with feed pipe and is multiple sets for feed pipe, and the chemical raw material of different categories is inputed to the inside of feed pipe simultaneously, and the chemical raw material that enters the inside of feed pipe is evenly discharged by the discharge hole of distribution pipe bottom, falls into the surface of shunt inclined plate, and conical shunt piece can continuously shunt and mixing treatment to raw material in the process of material sliding along shunt inclined plate, realizes the premixing to raw material, and the material after premixing is discharged in having discharge pipe, can shorten the reaction time consumption of subsequent in the inside of reaction kettle, improves production efficiency.

The application discloses a kind of based on the stress field reconstruction and test verification method of blade root of multiple measuring points, comprising the following steps: blade root parameter sampling, modeling and carrying out blade root rim strength analysis;Field reconstruction model is constructed, and the input and output of model are divided, and the reconstruction model training is completed using data;Develop blade root rim tensile test, compare the numerical value measured by test with reconstruction stress value, and verify the reliability of reconstruction model.The application can obtain the stress field of blade root rim position according to input after the establishment of reconstruction model, complete strength analysis, effectively avoid the problems such as long analysis time and large calculation resource consumption in traditional finite element method, with the advantages of fast calculation speed and high precision, and can realize digital twin in industrial scene.The application verifies reconstruction stress field using blade root rim tensile test result, so that reconstruction model result is more convincing.

The application belongs to the technical field of positioning and measurement, and particularly relates to a target positioning method and device combining CSI coarse positioning and Y-type CCD fine correction, which comprises the following steps: S1, CSI acquisition equipment is arranged in a target area, and CSI data between a sending end and a receiving end is acquired; S2, a Y-type CCD sensor is geometrically calibrated and a coordinate system is corrected, and coordinate reconstruction is completed; S3, the CSI data is preprocessed, noise is removed, and input is normalized; S4, time domain features of the CSI are extracted by using a time domain branch; S5, frequency domain features of the CSI are extracted by using a frequency domain branch; S6, a gating fusion module is used to fuse the time domain and frequency domain features, and the approximate position coordinates of a target are output; S7, the Y-type CCD sensor is controlled to optically acquire a target area, and point light source coordinate information is acquired; and S8, error correction is performed on the data acquired by the Y-type CCD, and the accurate position coordinates of the target are output.

This invention discloses a humanoid dexterous fingertip tactile sensor, belonging to the field of tactile sensor technology. It includes a fingertip shell, a flexible contact layer, a signal acquisition unit, an encapsulation layer, and three-dimensional force-sensitive units. The fingertip shell is connected to the flexible contact layer, forming a receiving cavity between them. The signal acquisition unit, the encapsulation layer, and multiple sets of three-dimensional force-sensitive units are disposed within the receiving cavity. The signal acquisition unit includes a mainboard, an FPCB board, and Hall sensors. The number of sets of three-dimensional force-sensitive units is the same as the number of Hall sensors. Each three-dimensional force-sensitive unit includes a carrier plate, a magnet, and an elastic column. The advantages of this invention are that, in the application scenario of humanoid dexterous fingertips, this humanoid dexterous fingertip tactile sensor combines the comprehensive advantages of high three-dimensional force sensitivity, real-time feedback, high spatial resolution, miniaturized integration, and suitability for mass production.

The utility model belongs to the field of access control equipment, and particularly relates to an access control device for security and protection, which comprises a connecting wall, the side wall of the connecting wall is provided with a rotary gate, the top of the rotary gate is provided with a rotary boss, the rotary boss is provided with a synchronous assembly, and the synchronous assembly comprises a synchronous top seat. A synchronous top seat is arranged on the rotating boss, a stress rod is fixedly connected to the outer wall of the synchronous top seat, a pushing rod is arranged at the top of the rotating gate, a guide sliding block is slidably connected to the inner wall of the synchronous top seat, and a metal sheet is fixedly connected to the outer wall of the guide sliding block; and the inner wall of the synchronous top seat is fixedly connected with a metal elastic sheet switch. According to the access control device for security and protection, when a person climbs the rotary gate, the hand applies force to the blocking rod, the compression spring is stressed and compressed, the metal sheet is driven to move downwards, the metal elastic piece switch is triggered, the alarm immediately gives out a sound-light alarm, the response time is fast, and the climbing person is scared away before climbing work is completed.

The invention provides a water stop and drainage dynamic regulation and control construction method for a deeply-buried tunnel to pass through a water-rich pressure-bearing layer, which comprises the following steps of: detecting geological related data of the tunnel, and performing stratum risk grade division based on the detected data; designing a waterproof curtain, a drainage and depressurization hole and a drainage system based on the risk level and geological related data; layered and segmented construction is adopted, drainage and pressure reduction holes are constructed firstly, then curtain grouting is conducted in a layered and segmented mode, a monitoring system is arranged, and water inflow, water pressure, grouting pressure and stratum settlement data are monitored; closed-loop regulation and control are realized through a central control system based on monitoring data; the water stopping and pressure relief effects are evaluated based on the monitoring data, and crossing construction is conducted when the evaluation index reaches the standard. Through full-process management, controllable release of water pressure, accurate construction of the waterproof curtain and intelligent matching of a drainage system are achieved, the water inrush risk is fundamentally reduced, stratum disturbance is reduced, and construction safety and efficiency are guaranteed.

The invention discloses a Spring framework timed task multi-thread optimization method. The method comprises the following steps: newly establishing a native spring timed task item; a class A is newly created, a Boolean type member variable Execute of the class A is newly increased, and a set method of the member variable is newly increased; configuring a trigger thread pool P1 of the timed task: newly establishing a class B, and marking a Configuration annotation (at) and an EnableAsync annotation (at) on the class B; and configuring an execution thread pool P2 of the timed task: newly establishing a class C, and annotating and registering the class C to a spring container by using a (at) Component. The invention provides a method for improving a (at) Scheduling annotation in a Spring framework. The method is used for improving the performance and resource utilization of a timed task. According to the method, a multi-thread execution and intelligent task scheduling strategy is introduced, so that the timed task management function of the Spring framework is enhanced.

The application discloses a conjugated polymer of chlorobenzene, o-dichlorobenzene or m-dichlorobenzene and EDOT as well as a preparation method and application thereof, and belongs to the field of polymer electrochromic materials. By introducing chlorine atoms as intermediates in different active sites of benzene and EDOT as a strong electron-donating group, the obtained conjugated polymer has the characteristics of a wider redox peak, good optical contrast, fast response time, high coloring efficiency, good stability and the like.

The application discloses a wind-solar-water combined short-term optimization scheduling method based on wind-solar uncertainty prediction scenes, which comprises the following steps: pre-processing and dividing levels of historical wind-solar output data; establishing a wind-solar prediction scene construction model and a reduction model to generate a wind-solar prediction typical scene set; establishing a scene migration probability calculation model to obtain the migration probability between different time periods of actual wind-solar output values; updating the prediction scene according to the wind-solar prediction typical scene set, combining the hourly wind-solar output measured data and the scene migration probability information; and performing wind-solar-water combined short-term optimization scheduling. The application is based on the prediction and measured data of historical wind-solar output, considers the influence of the uncertainty of wind-solar output on the wind-solar-water combined short-term optimization scheduling by constructing the wind-solar output prediction scene, and provides a new method and technology for the optimization scheduling of a multi-energy complementary system connected with new energy.

The invention discloses a soft rock large deformation control method and a rapid support system suitable for TBM tunnel construction method characteristics, the method is implemented based on an anchoring support system composed of a short anchoring support system and a long anchoring support system, and the method is suitable for an open TBM construction scene: in a TBM tunneling process, before a shield is exposed, the shield is not exposed, and the long anchoring support system is not exposed; a short anchoring support system of a full-length anchoring anchor rod structure is timely arranged in the radial direction of the 180-degree area of the upper half ring of the tunnel section through a cutter head edge cutter hole, and the short anchoring support system and a shield cooperate to form an initial deformation control system; after the shield is exposed, according to the deformation degree of the surrounding rock, full-length anchoring anchor rods or pre-stressed anchor cables are adopted in a graded mode, long anchoring supporting systems are arranged at intervals with the short anchoring supporting systems in a spiral mode, then the long anchoring supporting systems are cooperatively borne with steel arches, reinforcing meshes and sprayed concrete, and the long anchoring supporting systems are matched with 70m system sprayed concrete and 1000m secondary lining construction behind a tunnel face. According to the method, the displacement around the hole is effectively controlled, the TBM is prevented from being stuck, and the construction safety and efficiency of the open-type TBM in the soft rock large-deformation geology are improved.

The invention provides a photoconductive switch of a comb electrode, which comprises a semi-insulating gallium arsenide substrate layer, a low-temperature gallium arsenide layer and an insulating protective layer, and is characterized in that the low-temperature gallium arsenide layer is formed on the semi-insulating gallium arsenide substrate layer, and the insulating protective layer is arranged on the low-temperature gallium arsenide layer; a switch anode and a switch cathode are respectively formed on the inner side of the low-temperature gallium arsenide layer surface insulation protection layer; a comb-shaped electrode is arranged on the surface of the low-temperature gallium arsenide layer and located at the switch anode. According to the invention, by arranging the comb-shaped electrode structure, a plurality of comb-tooth electrodes which are distributed in a staggered manner are formed in the electrode region, so that the action area of incident light and a semiconductor active region is increased under an illumination condition, and generation and collection of photon-generated carriers are facilitated; meanwhile, the distribution state of an electric field near the electrode is improved, and the possibility of local electric field concentration is reduced; in addition, a low-temperature gallium arsenide material is adopted as the photoconductive layer, the service life of a current carrier is short, and the device is suitable for photoelectric trigger application scenes with requirements for response speed and stability.

The application discloses a kind of inventory optimization methods of charging facility spare parts replacement cycle and failure rate analysis, and the core process of this method includes building data layer, multidimensional data is cleaned and optimized, to realize standardized storage;Based on the LSTM algorithm, a multidimensional linkage prediction model is built, the loss effect of design defects and environmental factors is quantified to optimize the model, and the accurate spare parts replacement cycle threshold and equipment failure rate are output;According to the flow properties of spare parts, a differentiated inventory management mode is designed, and the optimal management mode of slow-moving parts is selected;A full-cost quantification model is built to calculate the total cost and service level under each mode;Finally, with the goal of minimizing cost, an intelligent inventory control model is built, which dynamically outputs inventory warning thresholds, replenishment quantities and times;Through the algorithmization and parameter quantification of the whole process, the application realizes fine and intelligent management of inventory, significantly reduces operating costs and stockout risk, and improves the stability of charging facilities.

This invention proposes a graphene film-based photoconductive semiconductor switch and its application method. It includes a substrate, a graphene film layer, a semiconductor layer, a first electrode, a second electrode, and a light incident window. The substrate is an insulating, high-temperature resistant substrate with the semiconductor layer fixedly attached to its top surface. The graphene film layer covers the top surface of the semiconductor layer, forming an ohmic contact between the graphene film layer and the semiconductor layer. This invention utilizes the excellent conductivity of graphene to form an ohmic contact between the graphene film layer and the semiconductor layer, effectively reducing the switch's on-resistance and improving its conduction efficiency. Simultaneously, the ultra-thin structure of the graphene film layer enhances laser absorption efficiency, improves the switch's laser trigger sensitivity, and shortens the response time. The substrate is made of insulating, high-temperature resistant alumina ceramic material, which improves the switch's high-temperature stability and insulation performance, extending its service life. The overall structure is simple, cost-controllable, and highly practical, showing significant improvements in response speed, conduction performance, and stability.

The invention relates to the technical field of polymer dispersed liquid crystal, and discloses a perovskite quantum dot / polymer dispersed liquid crystal film and a preparation method thereof, and the method comprises the following steps: preparing a toluene solution of perovskite quantum dots, and adding dithiol as a ligand to carry out surface modification on the perovskite quantum dots to obtain a perovskite quantum dot / polymer dispersed liquid crystal film; cleaning by using a mixed solvent of toluene and ethyl acetate in a volume ratio of 1: 2-2: 1, and centrifuging to obtain surface-modified perovskite quantum dots; uniformly mixing the surface-modified perovskite quantum dots with an ultraviolet polymerizable monomer, a cross-linking agent, liquid crystal and an ultraviolet initiator, injecting the mixture into a liquid crystal box, and performing ultraviolet curing to obtain the perovskite quantum dot / polymer dispersed liquid crystal film. The perovskite quantum dot / polymer dispersed liquid crystal film with enhanced long-wave infrared emissivity, fluorescent pattern and information encryption, provided by the invention, has wide application prospects in liquid crystal display, intelligent glass, energy-saving building materials, automobile decoration and related fields.

The invention discloses a xanthene nitroreductase-responsive fluorescent dye compound as well as a preparation method and application thereof, and belongs to the technical field of xanthene derivatives. The fluorescent dye compound can be used for quickly and specifically recognizing overexpressed nitroreductase in tumor cells; after the fluorescent probe acts with nitroreductase, the fluorescence intensity of the fluorescent probe at 718 nm is obviously enhanced, and the fluorescent probe has excellent targeting capability on mitochondria; meanwhile, under the excitation of illumination with the specific wavelength of 660 nm, an acting product of the fluorescent dye compound and nitroreductase can efficiently generate reactive oxygen species (ROS), and then the effect of specifically killing tumor cells is achieved. The xanthene nitroreductase response type fluorescent dye compound provided by the invention can achieve the goal of integration of diagnosis and treatment of solid tumors, and has important clinical application value.

This application provides a method, apparatus, equipment, and storage medium for assessing drought / flood disaster risks in tobacco cultivation. It relates to the field of hydrological technology. The method includes: analyzing the response relationship between drought / flood conditions and actual disasters in different months of the tobacco growing season based on multi-timescale SPI analysis; calculating the distribution sequence of drought / flood conditions with a high probability of causing drought / flood disasters using the Naive Bayes method; constructing a new paradigm for assessing the risk of drought and flood disasters during the tobacco growing season based on drought / flood type classification, Bayesian modeling, and disaster-causing effect quantification; and further establishing a three-dimensional simplified framework drought / flood risk assessment model. This application aims to establish a drought / flood risk assessment model by analyzing the response relationship between drought / flood conditions and actual disasters in different months of the tobacco growing season based on multi-timescale SPI analysis, calculating the distribution sequence of drought / flood conditions with a high probability of causing drought / flood disasters using the Naive Bayes method, and then establishing a drought / flood risk assessment model.

The application relates to the technical field of automobile transmission shaft production, in particular to a safety management system for automobile transmission shaft production based on big data, which comprises a data acquisition module, which is used for collecting production parameter data, environment parameter data, operator behavior data and quality inspection data of multiple production devices in the automobile transmission shaft production process in real time, and constructing an original safety data set; a big data processing platform, which is in communication connection with the data acquisition module, is used for cleaning, fusing and standardizing the original safety data set, and generating a standardized safety data set; a safety risk research and judgment module, which is connected with the big data processing platform, is used for storing a dynamic safety threshold model, and identifying abnormal states and safety risks in the transmission shaft production process in real time based on the standardized safety data set, and outputting quantitative research and judgment results; the safety risk research and judgment module realizes the whole domain monitoring, hierarchical early warning, millisecond-level emergency shutdown and closed-loop control of the transmission shaft production safety, and significantly improves the response speed and management efficiency.

The application provides a location-based search processing method, device and equipment and a storage medium. The method comprises the following steps: in response to a location search request of a user, inputting search information into a preset multi-task search model; simultaneously processing the search information based on a city jump decision task and a search suggestion task in the multi-task search model to obtain target city location features corresponding to the city jump decision task and search suggestion features corresponding to the search suggestion task; obtaining a search processing result based on the target city location features and the search suggestion features; obtaining a search suggestion list with the highest matching degree with the search processing result in a preset search suggestion library, and displaying the search suggestion list on a search interface. Through the above method, the training and development and maintenance costs of multiple models can be effectively reduced.

The invention discloses an aerocar hovering control method and device and an aerocar, and relates to the technical field of aerocars, and the method comprises the steps: processing the point cloud data of a current frame to obtain at least one current point cloud block, and extracting the geometric description information of each current point cloud block; matching the geometric description information of the current point cloud block with the historical geometric description information of the tracked point cloud block: if the matching is successful, associating the current point cloud block with the corresponding tracked point cloud block, and updating the time sequence tracking state of the associated tracked point cloud block; if matching fails, newly establishing a tracked point cloud block for the current point cloud block and initializing a time sequence tracking state of the tracked point cloud block; the time sequence tracking state comprises a motion state; calculating a hovering control signal according to the motion state of each tracked point cloud block and a preset channel range; according to the hovering control signal, the hovering car is controlled to execute hovering action. According to the scheme, the risk of the obstacle invading the channel can be quickly judged, and hovering control is triggered immediately.

This invention relates to the field of geotechnical engineering mechanics testing and non-destructive testing technology. Existing technologies suffer from high computational delays due to passive monitoring modes, the inability to perform real-time physical intervention before macroscopic brittle fracture of soil and rock masses, and the inability to effectively preserve the critical failure state of rocks for microscopic damage constitutive relationship studies. This invention discloses a system and method for analyzing acoustic emission signals from freeze-thaw damage in soil and rock masses. A signal acquisition module is used to capture acoustic emission signals in real time; a feature analysis module is used to extract frequency band energy distribution characteristics and the instantaneous rate of change of the dominant frequency drift; a state determination module is used to determine the microcrack damage evolution stage and the precursors to critical failure based on the above features; and a linkage intervention module is used to generate physical intervention commands based on the determination results, enabling real-time adaptive adjustment or state latching of mechanical loads and ambient temperature. This allows for microsecond-level closed-loop linkage intervention, suppressing sudden shear surface slippage and instability, and effectively preserving the microstructure of rocks on the eve of critical failure.

The application discloses a method for manufacturing a colorimetric sensing unit and array by using a multi-target Bayesian optimization algorithm. Different formulations of colorimetric sensing units are initially prepared on a hole plate; the hole plate is dried, and the dried hole plate is introduced into a gas test to obtain the values of response time, reversibility, responsivity and sensitivity of each formulation; the values of response time, reversibility, responsivity and sensitivity of each formulation are processed by a Sigmoid function to obtain score values, which are substituted into a multi-target Bayesian optimization algorithm to generate a next round of formulation; colorimetric sensing units are prepared on the hole plate according to the formulation; the steps are repeatedly cycled, and the number of cycles reaches a stop condition to obtain a global optimal formulation; and colorimetric sensing units are prepared according to the global optimal formulation. The method solves the problem that multiple indexes of a sensor are simultaneously optimized and some indexes are easily neglected, and can quickly optimize a CO2 colorimetric sensing array which simultaneously has wide range, high sensitivity, fast response and high reversibility.

The invention relates to the technical field of gas sensing, and discloses a cavity enhanced spectral absorption gas detection system and method based on AR-HCF, and the system comprises a light source part, a transmission part, a gas chamber part, a signal detection part and a demodulation part; the air chamber part is a mode interferometer, the mode interferometer is composed of a single-mode fiber (SMF), a gradient refractive index multimode fiber (GIF) and an anti-resonance hollow-core fiber (AR-HCF), the gradient refractive index multimode fiber is welded to the output end of the single-mode fiber, the anti-resonance hollow-core fiber is welded to the output end of the gradient refractive index multimode fiber, and the gradient refractive index multimode fiber and the anti-resonance hollow-core fiber are welded to the output end of the gradient refractive index multimode fiber. According to the AR-HCF-based cavity enhanced spectral absorption gas detection system, the gas sensing unit is of an all-fiber structure, so that the AR-HCF-based cavity enhanced spectral absorption gas detection system is small in size, high in electromagnetic interference resistance, low in cost and convenient to integrate.