2008 results about "Integrated design" patented technology

The invention discloses a coal drop pipe full-life-cycle operation and maintenance decision-making method. The method comprises the steps of S1, coal drop pipe full-life-cycle data collection; s2, constructing and updating a digital twinborn body of the coal drop pipe: S2.1, constructing a multi-dimensional digital twinborn body comprising a geometric model, a physical model, a behavior model and a rule model, and comprehensively describing the characteristics of each aspect of the coal drop pipe; s2.2, dynamically updating the twinborn body, and dynamically updating the twinborn body through a data driving algorithm by using real-time monitoring data; s3, health state evaluation and reliability prediction, including short-term health diagnosis and long-term reliability prediction; s4, carrying out dynamic operation and maintenance decision making based on risks and cost; and S5, performing decision issuing execution and closed-loop feedback. According to the method, the design data, the real-time monitoring data, the environment data and the operation and maintenance historical data are integrated, the coal drop pipe digital twinborn body is constructed and dynamically updated, it is ensured that the model is consistent with the physical entity state, and the comprehensiveness and timeliness of the data are improved.

The invention belongs to the technical field of industrial system integration, and provides a design method for rapid adaptive integration of a cross-domain system. Through the method, developers extract business logic rules of the industry, standardize characteristic mapping and select, develop and integrate functional modules, logic processes and scene components of the cross-domain system, so that the cross-domain system which conforms to industry characteristics and meets business circulation is formed, and meanwhile, the development efficiency of the cross-domain system is improved. The newly added industry logic component can be classified into each industry characteristic model based on the knowledge base, and a multi-dimensional characteristic vector is generated in the platform, so that cross-industry integrated component multiplexing is realized, and the cross-field applicability and flexibility of the platform are further improved. Modularized construction and configuration type development are supported, mapping and matching functions are carried out on various industrial manufacturing industry characteristics such as machining, electronic and electrical appliances and equipment sets, the requirements for subdivision production in the industrial field and rapid adaptation of business processes are met, the system integration cost is reduced, and the application development efficiency is greatly improved.

The invention discloses a preparation method of a high-temperature-resistant high-strength polyimide composite material, and relates to the technical field of polyimide composites.The preparation method comprises the following preparation steps that S1, a customized silane coupling agent is prepared; s2, preparing a bionic dynamic interface modified reinforcing filler, wherein the modified reinforcing filler is synergistically modified through a bionic coating and a customized silane coupling agent; and S3, preparing a polyimide precursor solution containing the dynamic network. According to the preparation method of the high-temperature-resistant high-strength polyimide composite material, through the integrated design of'customized silane coupling agent + bionic dynamic interface modification + dynamic network-containing polyimide precursor + gradient hot-pressing curing ', the glass-transition temperature of the prepared composite material is greater than or equal to 335 DEG C, the tensile strength is greater than or equal to 208 MPa, and meanwhile, the thermal repair efficiency at 180-250 DEG C is greater than or equal to 87%; the technical bottleneck that high temperature resistance, mechanical strength and repairing performance of the material are difficult to consider at the same time in the prior art is solved.

The invention relates to a detection-interference integrated unmanned aerial vehicle electromagnetic interference device, which belongs to the technical field of electronic countermeasure, and comprises an integrated design of an antenna module, a radio frequency front end module, a digital signal processing module and a main control module, the radio frequency front-end module comprises a detection receiving channel and an interference transmitting channel to process signal conversion, the digital signal processing module executes signal detection and analysis, intelligent interference decision and anti-self-interference signal processing based on a self-adaptive filtering algorithm, and the main control module is responsible for overall control and power supply. According to the invention, the technical problems of large response delay, complex system cooperation and incapability of continuous reconnaissance in the interference process of traditional anti-unmanned aerial vehicle equipment are solved. Real-time signal cancellation is achieved through the normalized least mean square algorithm, the reconnaissance capability is kept while interference is applied, the method has the advantages of being rapid in response, accurate in interference, low in power consumption and the like, and the countering efficiency is remarkably improved.

A coal mine tunnel ditch cleaning system relates to the technical field of coal mine tunnel cleaning and comprises a walking system used for enabling the whole system to move in the extending direction of a ditch in a tunnel; the screening system is installed on the upper end face of the supporting plate, is close to the edge of the supporting plate in the advancing direction of the walking assembly and comprises a screening hopper elastically installed on the supporting plate, a screen plate is arranged in the screening hopper, and the bottom of the screening hopper communicates with a liquid discharging assembly; the feeding system is located on the outer side of the advancing direction of the walking assembly and used for conveying sundries and accumulated water in the ditch into the screening hopper. Compared with the defects that traditional manual cleaning is high in risk and low in efficiency, and a suction type ditch cleaning machine is stopped due to blocking of large gangues, the system achieves breakthrough through the integrated design of material digging and screening, a digging hopper of the feeding system rotates along with a transmission chain and can directly go deep into a ditch to dig deposits high in viscosity and mixed in component, and the problem that a suction opening is blocked is solved.

The invention discloses an AGV-six-degree-of-freedom mechanical arm operating system and method based on double-vision fusion, the system comprises a control system and a six-degree-of-freedom mechanical arm, and the control system comprises a master control unit, a slave control unit and a dynamic error compensation module; the method comprises the steps of AGV autonomous navigation and material transfer, cross-station accurate docking and dynamic error compensation, high-precision biological medicine operation under double-vision fusion guidance, and material recovery and circulation. According to the invention, through dual-vision dynamic fusion of eyes outside the hand and eyes on the hand, adaptive switching from global coarse positioning to local fine positioning is realized; due to the integrated design of the AGV and the six-degree-of-freedom mechanical arm, the operation flexibility is greatly improved; an extended Kalman filtering dynamic error compensation algorithm is innovatively adopted, so that the comprehensive error of the AGV, the mechanical arm and the visual system can be corrected in real time; and by combining with a double-layer distributed control architecture, the system realizes multi-task intelligent scheduling and modular collaboration.

The invention relates to the technical field of fine hole precision machining and surface treatment, and discloses a precision drilling device for winding machine accessories, which comprises a workbench, a main shaft driving unit is arranged on one side of the workbench, a compound tool is mounted on the main shaft driving unit, and the main shaft driving unit is used for driving the compound tool to rotate and axially feed; a clamping base is embedded and fixedly connected to the upper surface of the workbench and used for positioning and installing a workpiece, a fluid processing unit is arranged in the workbench, located below the clamping base and communicated with the clamping base, and a sealing guide assembly is arranged between the clamping base and the main shaft driving unit. The compound tool is divided into a cutting guide section at the front end, a fluid disturbance section at the middle end and a clamping section at the rear end in the axial direction. By means of the integrated design of the compound tool, two procedures are seamlessly connected under the same main shaft and clamp system, and accumulative errors caused by workpiece transferring and repositioning are thoroughly eliminated.

The invention relates to a gas nanometer purification method and a purifier, and the method comprises the following steps: gas to be cleaned enters a gas-water separator for gas-liquid separation and coarse filtration, liquid impurities and large-particle solid impurities in the gas are removed, and preliminarily purified gas is obtained; on the basis of switching logic, the preliminarily purified gas is alternately conveyed to two adsorption unit groups for deep adsorption purification, adsorbent dehydration treatment and fine dust interception treatment are sequentially completed in the adsorption units, and clean gas is obtained; one part of the clean gas is conveyed to the gas storage bin to be stored, and the other part of the clean gas is conveyed to the regeneration gas bin to be pre-stored for regeneration cycle of the subsequent adsorption unit. Through the integrated method design of continuous adsorption working conditions, online regeneration cycle and automatic pressure equalizing switching, seamless connection of adsorption and regeneration and uninterrupted gas supply in the whole process are achieved, gas supply interruption and severe gas pressure fluctuation are effectively avoided, and the strict use requirements of precise manufacturing, automatic production lines and continuous production scenes for stable gas sources can be met.

The invention discloses a village island micro-grid virtual synchronous machine parameter optimization and cooperative control method oriented to frequency support, and relates to the technical field of electrical automation, and the method comprises the steps: obtaining village power distribution network parameters and load side parameters, and basic technical parameters of each virtual synchronous machine unit; constructing a standard dynamic model of the virtual synchronous machine based on the obtained parameters; introducing uncertainty integrated design on the basis of the standard dynamic model of the virtual synchronous machine, and performing equivalent aggregation on all the virtual synchronous machines to obtain a virtual synchronous machine uncertainty model; based on the uncertainty model of the virtual synchronous machine, establishing a cooperative control model by taking system frequency fluctuation minimization as a target; and solving the cooperative control model by using a commercial solver, and solving the power of each device. According to the invention, by constructing an optimization and cooperative control mechanism oriented to frequency support, the problem of over-limit of frequency deviation and frequency change rate is effectively suppressed, and the dynamic response capability of the island micro-grid under the condition of sudden load change is improved.

The invention discloses a tight-lock coupler intelligent tensile testing machine and a testing method thereof, and belongs to the technical field of tight-lock coupler test.The tight-lock coupler intelligent tensile testing machine comprises a mounting bottom plate and an electric control cabinet, and a support for supporting a tight-lock coupler to be detected is mounted on the surface of the mounting bottom plate; a tensile connecting frame for connecting the tight-lock coupler is mounted on the surface of the bottom plate on one side of the support, an integrated design of'tensile force detection and visual detection 'is innovatively adopted, mechanical parameter acquisition and visual deformation observation are combined, traditional mechanical data such as tensile force and displacement are obtained, and visual characteristics such as fine deformation and crack initiation are captured; precise synchronization of pulling force application, displacement collection and camera shooting is achieved through the synchronous controller, the real-time corresponding relation of pulling force-displacement-visual deformation is established, the problems that an existing device is single in detection dimension and poor in data relevance are solved, and the potential quality hazard checking capacity and the persuasion of a detection result are improved.

The invention relates to a precise separation and online detection integrated system for a multi-component complex system, and belongs to the technical field of analysis and detection. The system comprises an intelligent preprocessing and component sensing unit, a self-adaptive precise separation unit, a multi-modal cooperative detection unit, a zero dead volume-intelligent adaptive interface unit and a multi-algorithm fusion intelligent control and data analysis unit, and the five units form a closed-loop cooperative architecture through real-time data interaction. The system adopts a preprocessing-sensing integrated design, a multi-mode switching type separation architecture, a dynamic intelligent chromatographic column, a four-channel collaborative detection system and multi-algorithm fusion regulation. According to the invention, the problems of separation and detection disjunction, narrow adaptability, weak matrix interference suppression capability, low intelligent degree, poor portability and the like in the prior art are effectively solved, and one-time sample injection accurate separation and high-accuracy detection of trace target components with wide polarity range and similar structures can be realized.

The invention provides a new energy vehicle flying protection method based on a vehicle comprehensive control system and a medium. The new energy vehicle flying protection method comprises the following steps that vehicle state parameters are continuously collected; based on the vehicle state parameters, judging whether the vehicle enters a flying state or not; after it is confirmed that the vehicle enters the flying state, power pre-adjustment and vehicle body posture pre-adjustment are conducted on the vehicle; when the vehicle lands, traction control and stability control are cooperatively executed, so that stable grounding and posture stability are achieved. According to the integrated design, the advantages of system redundancy and cooperative control are brought into full play, the problems of information islands and control conflicts possibly existing in a traditional independent protection system are solved, the whole vehicle control system can form unified control resultant force, and the control effect and the system reliability are improved.

The invention provides a cutter handle and a machine tool. The cutter handle comprises a main shaft connector, a cutter handle body, a vibration reduction assembly and a chip removal channel. The cutter handle body is connected with the main shaft connector, a first cavity and a second cavity are formed in the cutter handle body, and the second cavity is arranged around the first cavity; the vibration reduction assemblies are arranged in the first cavity and the second cavity correspondingly so as to be used for reducing vibration generated in the cutting process. The chip removal channel is arranged in the first cavity in the axial direction of the cutter handle body, the chip removal channel is at least partially connected with the vibration reduction assembly, a cutter clamping hole is formed in the end, away from the main shaft connector, of the cutter handle body, and the chip removal channel communicates with the cutter clamping hole; the diameter and the wall thickness of the cutter handle body are gradually increased in the direction from the cutter handle body to the main shaft connector. Through the integrated design of the vibration reduction assembly and the chip removal channel, the machining stability and efficiency are remarkably improved, and then the technical problems that when a traditional machine tool cutter handle conducts high-speed cutting, vibration control is poor, and the chip removal efficiency is low are solved.

The invention discloses underwater multi-load constant-temperature sealing bin equipment, and relates to the technical field of underwater detection equipment, and the underwater multi-load constant-temperature sealing bin equipment comprises a cylindrical sealing bin main body and a heat conduction assembly; two corresponding sealing cover assemblies are installed on the left side and the right side of the cylindrical sealing bin body, and a detection assembly is installed at the left end of the sealing cover assembly on the left side. Unified installation of multiple types of detection modules can be achieved through integrated design, and the problems that in a traditional scheme, due to the single function, the number of mounting positions is large, and the load of a submersible is heavy are solved. The heat dissipation efficiency is effectively improved through a five-stage heat conduction mechanism and a net-shaped rib heat bridge structure, and the problems of temperature fluctuation and equipment overheating faults caused by passive heat dissipation are solved. A double-sealing interface is formed by the trapezoidal seam allowance and the sealing rubber ring, so that the waterproof reliability in a high-pressure environment is enhanced, and the leakage risk is reduced; and meanwhile, the universality of equipment is improved by virtue of standardized mounting surface design, and the multi-scene deployment cost is reduced.

The invention discloses a progressive multi-modal medical image fusion method based on multiple scales. Relates to the technical field of multi-modal medical image fusion, in particular to a progressive multi-modal medical image fusion method based on multiple scales. Through the integrated design of multi-scale extraction, hierarchical coding, layer-by-layer fusion and adaptive modeling, efficient and accurate fusion of multi-modal medical images is realized, and reliable technical support is provided for clinical application. The method comprises the following steps: acquiring images of a mode A and a mode B, and preprocessing the images; performing multi-modal parallel coding on the preprocessed image, wherein the multi-modal parallel coding comprises four coding stages; the input of each coding stage passes through a self-adaptive visual RWKV module, an efficient cross-modal module and a progressive fusion module in sequence to obtain the output of multi-modal parallel coding; and carrying out image conversion to obtain an RGB fusion image.

The invention discloses a high-sensitivity double Fabry-Perot interference hydrogen sensor resistant to temperature and humidity interference, and belongs to the technical field of optical fiber sensing. A modular integrated design is adopted, and the core comprises double Fabry-Perot interferometers which are connected in series and are respectively a temperature compensation unit FPI-1 and a hydrogen sensing unit FPI-2, and a matched software controllable vernier processing module; the FPI-1 realizes temperature real-time compensation by filling PDMS in an open microcavity, and the FPI-2 adopts a PDMS / Pd-WO3 composite material as a hydrogen sensitive layer, and has wide humidity range anti-interference capability through structural optimization; the weak hydrogen signal is amplified through Fourier transform filtering, sine function fitting, twin interference spectrum construction and vernier effect. According to the invention, precise detection of ultra-trace hydrogen in a complex temperature and humidity environment is realized, and the temperature and humidity interference resistance is high.

The invention provides a hydraulic fracturing simulation device, which comprises a pressure pump, a function module, an execution module, a visual display module and a valve assembly, the function module comprises a sand mixing unit and an oil-water separation unit, the execution module comprises a shaft simulation unit and a multi-stage crack simulation unit, and the shaft simulation unit and the multi-stage crack simulation unit are communicated. A gradient pressure triggering structure is arranged in the multi-stage crack simulation unit so as to realize multi-stage crack progressive expansion; the valve assembly comprises a first valve, a second valve, a third valve and a fourth valve, the first valve is connected with the pressure pump and the sand mixing unit, the second valve is connected with the sand mixing unit and the shaft simulation unit, the third valve is connected with the pressure pump and the oil-water separation unit, and the fourth valve is connected with the oil-water separation unit and the shaft simulation unit; thus, through integrated design, a valve assembly double-loop switching mechanism and gradient triggering and visual collaborative layout, the requirements for integration, continuity, high simulation and high precision of the hydraulic fracturing experiment are met, and the hydraulic fracturing experiment system fully meets the requirements for industry core development.

The invention relates to an IGBT parallel current sharing control circuit and method for turn-off transient current change rate detection, and the circuit employs a PCB Rogowski coil probe to carry out the non-contact detection of the turn-off current change rate of a parallel device, thereby accurately judging the non-current sharing characteristic of the parallel device. The problem of integrated design of a traditional detection scheme in large-current and high-power-density application is effectively solved; meanwhile, by designing a current change rate peak holding circuit, the holding time of a peak signal is remarkably prolonged, and the performance requirement on the ADC sampling rate is greatly reduced; a reset branch is additionally arranged for the peak holding circuit, and the peak output value in the last period is zeroed in the turn-on transient state by using a driving signal, so that the charge accumulation effect is effectively eliminated, and the sampling precision of the system is guaranteed; the regulation and control part of each parallel branch only needs to be additionally provided with two passive elements including the control switch and the capacitor, current sharing control can be achieved by adjusting the access time of the bypass branch, the structure is simple, cost is low, and good popularization applicability is achieved.

The invention discloses a titanium-magnesium intramedullary nail and a designing and manufacturing method thereof, and the designing and manufacturing method comprises the steps that multiple working modes of the titanium-magnesium intramedullary nail are defined according to use requirements, a mode specification table is generated, and the mode specification table comprises main structure parameters, simulated bone trabecula structure parameters and a magnesium alloy filling scheme corresponding to each working mode; based on the mode specification table, optimization design of parameter mapping is conducted, a customized parameter combination of the titanium-magnesium intramedullary nail is determined, and the customized parameter combination comprises pore distribution and magnesium alloy gradient degradation configuration; a 3D digital model of the titanium-magnesium intramedullary nail is generated through modeling of the mode specification table, a titanium-magnesium intramedullary nail prototype is manufactured through a low-temperature 3D printing process, and magnesium alloy filling and micropore channel integration are completed through customized parameter combination in the period; the process of designing, optimizing, forming and compositing is achieved; according to the method, a mode specification table and parameterization mapping serve as links, the titanium-magnesium intramedullary nail integrated design and manufacturing process is constructed, and therefore multi-mode parameter customization is achieved while the manufacturing stability is guaranteed.

The invention relates to the technical field of strip steel cutting machining, in particular to a coiled strip steel shearing machining treatment method and device. S2, double-area elastic abutting is carried out; s3, dynamic cutting and dynamic adjustment; s4, shearing dynamic parameters; s5, dynamic cleaning of the cutting edge is conducted, specifically, a plating layer adhering to the cutting edge is removed in real time in a combined mode of airflow blowing and brush cleaning; s6, coating micro-area synchronous repair is carried out; and S7, buffering and rolling are conducted, specifically, after spraying, drying and flexible straightening are conducted, rolling is conducted, and machining is completed. Through pretreatment integrated design, double-area elastic symmetric constraint and a vibration dynamic adjusting system, vibration interference of the strip steel and the cutter is accurately restrained, and matched control over the cutter gap and the strip steel thickness is achieved, so that the flatness and size precision of the strip steel shearing face are remarkably improved, the defects of shearing burrs, coating adhesion and the like are effectively reduced, and the product quality is improved. And the harsh requirement of high-end strip steel on the shearing quality is met.

The invention provides a Hall and ion hybrid electric propulsion system. The Hall and ion hybrid electric propulsion system comprises a composite material gas cylinder, an inflation valve, a pressure adjusting module, a Hall flow adjusting module, an ion flow adjusting module, a Hall thruster, an ion thruster, an electric propulsion control unit, a power processing unit and a power supply processing and control unit, the pressure adjusting module supplies gas to the Hall flow adjusting module and the ion flow adjusting module in a time-sharing manner; the Hall flow regulation module and the ion flow regulation module are used for carrying out flow control on the Hall thruster and the ion thruster respectively; the electric push control unit performs time-sharing power supply control on the power processing unit and the power supply processing and control unit; the power processing unit and the power supply processing and control unit respectively provide electric energy for the Hall thruster and the ion thruster; the Hall thruster and the ion thruster provide thrust or impulse for the spacecraft; according to the Hall and ion hybrid electric propulsion system, the integrated design of air supply, power supply and autonomous process control of the Hall and ion thrusters is achieved, system air path and circuit configuration is simplified, and the requirement for a spacecraft with high specific impulse and high thrust electric propulsion systems at the same time is met.

The invention is suitable for the technical field of tapered-straight composite shell ring processing, and provides a processing method of an integrated tapered-straight composite shell ring, which comprises the following steps: S1, cutting and blanking a steel plate according to the size of the tapered-straight composite shell ring, and cutting out a plate material; s2, preparation work before machining is conducted on the plate material, wherein the preparation work at least comprises groove machining, two-side edge pre-bending and generatrix, symmetric center line and step line drawing; s3, according to the drawn step line, pressing forming is conducted on the plate through a top pressing type plate bending machine, and a formed workpiece is of a composite structure of a semi-cylindrical pipe section and a semi-conical pipe section; s4, the formed workpiece is shaped; and S5, the two shaped workpieces are folded and welded, and the conical and straight composite shell ring is formed. Therefore, not only is the specific process problem of the integrated cone-straight composite shell ring in the bending forming process solved, but also the core advantages of no annular weld joint, high continuity and high performance pursued by the integrated design are achieved by guaranteeing the manufacturing precision and consistency of the integrated cone-straight composite shell ring.

The invention discloses a network interface card with autonomous access authentication, and provides an integrated hardware authentication mechanism. The EAP-TLS client protocol stack is integrated on the bottom layer of the network card, so that the defect that an authentication module depends on a host system, manual intervention and the like in the existing scheme is overcome, TLS handshake and certificate verification are independently completed on the network card side, and authentication interaction is automatically initiated. The network interface card serves as a unique identity certificate of an access network, a client certificate and a corresponding private key are embedded in the network interface card and are stored in a protected nonvolatile area, and data confidentiality is effectively enhanced. The network card is used as an identity certificate and network access equipment at the same time, and the integrated design reduces the dependence on the service capability of management personnel. A traditional physical network card and an automatic authentication protocol are fused, and the method is suitable for application environments with high requirements for access control and authentication safety, such as an enterprise intranet and a government affair private network.

The invention relates to the related technical field of geophysical exploration instruments, in particular to a miniaturized broadband induction type magnetic field sensor. The sensor comprises a magnetic core, an induction coil, a feedback coil and a signal processing circuit. The invention is characterized in that the magnetic core is of a long rod-shaped structure formed by laminating and curing high-permeability soft magnetic strip materials, the length of the magnetic core is 580mm-640mm, the cross section of the magnetic core is a square or an equivalent circle with the side length of 11mm-15mm, and the length-diameter ratio of the magnetic core is greater than 40; the feedback coil is formed by spirally winding a metal foil belt along the magnetic core, and the metal foil belt forms a main shielding layer for restraining interference of an external electric field at the same time. By optimizing the size and the length-diameter ratio of the magnetic core and combining the integrated design of feedback and shielding functions, while the working frequency band and the low-noise performance are ensured, remarkable miniaturization and light weight of the sensor are realized, and the portability and the layout efficiency of field exploration are greatly improved.

The invention discloses a comprehensive design method for an anti-freezing pavement of a highway in a high-altitude severe cold area, relates to the technical field of road engineering, and solves the problems of high energy consumption, short service life, unfriendly environment or poor system reliability and the like generally existing in the prior art. And the design of combining structures, materials, energy and intelligent control is lacked. A comprehensive design method for an anti-freezing pavement of a highway in a high-altitude severe cold area comprises the following steps that S1, a multi-layer composite pavement structure is constructed, and the multi-layer composite pavement structure is composed of an anti-sliding and ice-inhibiting functional layer, an energy active layer and a heat preservation structure layer from top to bottom; and S2, a distributed state sensing network is arranged in the multi-layer composite pavement structure and on the roadside of the multi-layer composite pavement structure. Passive ice suppression, active ice melting, intelligent sensing and green energy are organically integrated to form a complete'sensing-decision-execution-energy supply 'closed-loop system, and the limitation of a single technology is broken through.

The invention relates to the technical field of energy storage assemblies, in particular to an energy storage converter and an energy storage system. The energy storage converter comprises a first shell, and the first shell is provided with an accommodating cavity; the energy storage converter further comprises a high-voltage box which is accommodated in the accommodating cavity. Wherein the high-voltage box is provided with a bearing assembly, and the bearing assembly is used for bearing electric devices in the high-voltage box, so that the electric devices in the high-voltage box are separated from other electric devices in the energy storage converter. Through the design mode, electric parts in the high-voltage box can be accommodated in the bearing assembly, direct-current electric parts in the high-voltage box and alternating-current electric parts in the energy storage converter are prevented from interfering with each other in the use process, and normal use of the energy storage converter and the high-voltage box is guaranteed. Through the arrangement of the bearing assembly, the integrated design of the high-voltage box and the energy storage converter is achieved, meanwhile, direct-current electric devices in the high-voltage box can be separated from alternating-current electric devices in the energy storage converter, and normal use of the energy storage converter and the high-voltage box is guaranteed.

The invention discloses a synchronous detection system for surface density and wall thickness uniformity of a composite bulletproof helmet, which belongs to the technical field of bulletproof helmet detection and comprises a detector cooperative control module, a two-parameter synchronous acquisition module, a data preprocessing module, a two-parameter cooperative constraint module and an intelligent modeling output module. Through the integrated design that the detection unit integrates the 3D scanning detector, the microwave thickness measuring probe and the beta-ray density detector, and in cooperation with the synchronous triggering and double-channel signal acquisition mode of the double-parameter synchronous acquisition module, synchronous acquisition of the surface density and wall thickness data of the helmet is realized; the problems that traditional step-by-step detection is low in efficiency and poor in data relevance are solved, the detection efficiency and the accuracy of quality judgment are greatly improved, meanwhile, a detection report containing process optimization suggestions is output, the problems that traditional detection results are not visual, and connection with the production process is not smooth are effectively solved, and the product quality is improved. And accurate guidance can be provided for mass production quality control and process adjustment.

The utility model discloses a valve device which comprises a valve seat with a water distribution cavity, an inlet communicated with the water distribution cavity and at least two water outlets communicated with the water distribution cavity. The at least two valves can move relative to the valve seat, and the water outlet of the valve seat can be opened or closed through movement of the valves; the switching device is provided with a pushing body which can move in the axial direction so as to enable the valve to move; the valve device is provided with a valve and a stabilizing body which can stabilize the valve in the state that the water outlet is opened or closed at different stable positions, the valve device can reduce pressing force during switching, meanwhile, opening and closing of a plurality of valves are controlled through a single key, the integrated design is achieved, the modularization degree is high, and the size is small.

The invention discloses a detection and power-on optimization method for contact resistance of an electric connector. The detection and power-on optimization method comprises an integrated design of a multi-parameter acquisition module, a real-time calculation engine and a piezoelectric regulation and control module. The multi-parameter acquisition module synchronously acquires the micro-friction coefficient, the electrochemical reaction product concentration and other physical quantities; the real-time calculation engine executes three-formula linkage calculation of basic contact resistance, vibration-friction coupling correction and service life attenuation; the piezoelectric regulation and control module dynamically outputs pre-tightening force to compensate pressure loss; the method solves the defect that multi-factor coupling is ignored in the prior art, improves the contact resistance detection precision and the service life prediction accuracy, guarantees the power-on reliability of the electric connector, and is suitable for a high-reliability power electronic system.

The invention provides an optical gain and electro-optical modulation integrated device and a preparation method thereof, and relates to the field of photoelectron, the optical gain and electro-optical modulation integrated device comprises a chip platform, and an electro-optical modulator and a gain waveguide which are integrated on the chip platform, and the chip platform is doped with rare earth ions in a region corresponding to the gain waveguide; the electro-optical modulator is used for modulating an input optical signal to obtain a modulated optical signal; and the gain waveguide is used for amplifying the modulated optical signal under the action of the pump light and the rare earth ions to obtain a target optical signal. The electro-optical modulator and the gain waveguide are integrated on the chip platform, cooperative work between the electro-optical modulator and the gain waveguide is achieved through rare earth ions, integrated design is achieved, the defects of discrete devices are overcome, and the design target of an on-chip photonic system can be met.