105results about How to "Improve application reliability" patented technology

The invention discloses a satellite attitude control semiphysical simulation system based on a multi-target machine. The satellite attitude control semiphysical simulation system comprises a real-time positioning sub system, an attitude measurement sub system, an attitude control comprehensive processing system, an execution mechanism, a signal conditioning box, a target machine, a working computer and a display system, wherein the real-time positioning sub system acquires real-time position information of a satellite; aiming at different working modes of the satellite during orbit flying, the attitude measurement sub system acquires real-time attitude information of the satellite; the attitude control comprehensive processing system manages all attitude measurement components and the execution mechanism; the target machine performs attitude calculation and torque calculation according to acquired real-time position information and the acquired attitude information and sends control information to the execution mechanism; and the execution mechanism sends actual execution information back to the target machine through the signal conditioning box, acquires the real-time attitude information of the satellite through dynamics and sends the attitude information to the attitude measurement components. The satellite attitude control semiphysical simulation system has high simulation instantaneity, high fault-tolerant capability and high integration degree and has great instructional significance for design and development of satellite attitude control systems.

The invention discloses a reaction type thermal conductive insulating double sided tape and a preparation method thereof. The method comprises the following steps that the raw materials of, by weight,5%-30% of epoxy resin, 3%-50% of film former, 0.2%-3.0% of a curing agent, 0.01%-2.0% of an accelerator and 30%-90% of thermal conductive powder are taken, the raw materials are added into a planetary mixer, mixing is conducted to be uniform, vacuum defoamation is conducted, and reaction type heat-conducting glue is obtained; the reaction type heat-conducting glue and a PET release film are extruded by a calender to obtain a heat-conducting glue film; the heat-conducting glue film is attached to the two sides of a polyimide thin film through laminating equipment, and the reaction type thermalconductive insulating double sided tape is obtained. Accordingly, the requirements of high initial adhesion of the high heat-conducting glue tape can be met, and the heat-conducting tape can have higher mechanical strength and more excellent adhesion; the problem that for a traditional coating process, solvent must be used, and the environment pollution is caused is solved, the air hole problem possibly generated in the baking process is avoided, energy consumption can be saved, and the production cost is lowered.

The invention discloses a full bridge topology power supply, a control method and communication equipment. An inductance clamping circuit capable of self-adjusting resonance is arranged in a full bridge topology power supply device, inductance value features can be automatically adjusted with the utilization self-adjusted resonance inductance in the inductance clamping circuit and according to the size of passed current, a control circuit controls each switch tube of a full bridge topology, wide zero voltage switch load range, small circulation energy and small duty ratio loss are achieved, and therefore light loading vice side rectifying loss is reduced, light loading converting efficiency is enhanced, performance of flexible switches of a full bridge is improved, wide load range zero voltage opening up of primary side switch tubes of the full bridge is favorable for being achieved, switch loss is reduced, and efficiency of full load range is improved. Besides, the changing rate of primary side current is lowered by the self-adjusted resonance inductance, the vice side rectifier tube voltage spike is clamped through the self-adjusting resonance inductance clamping circuit, and therefore vice side rectifier tube source drain electrode voltage spike is lowered, and application reliability is improved.

A process for determining the speed of a moving sport ball using a mobile device having a camera, the process comprising: providing instructions to a user on how to position the mobile device relative to a sport court of a known layout and in relation to which the sport ball is expected to move; providing feedback to the user about the position of the mobile device; determining the position of the mobile device relative to the sport court; video shooting of the moving sport ball using the camera of the mobile device; analyzing the video of the moving sport ball and extracting from the video the data necessary for computing the speed of the moving sport ball; computing the speed of the moving sport ball; and, displaying the computed speed on the screen of the mobile device.

Method for assembling thermoelectric unicouples is provided and applied with silicon-based nanostructure thermoelectric legs. The method includes preparing and disposing both n-type and p-type thermoelectric material blocks in alternative columns on a first shunt material. The method includes a sequence of cutting processes to resize the thermoelectric material blocks to form multiple cingulated unicouples each having an n-type thermoelectric leg and a p-type thermoelectric leg bonded to a section of the first shunt material. Additionally, the method includes re-disposing these cingulated unicouples in a serial daisy chain configuration with a predetermined pitch distance and bonding a second shunt material on top. The method further includes performing additional cutting processes to form one or more parallel series of thermoelectric unicouples in daisy chain configuration. The first shunt material is coupled to a cold-side heat sink and the second shunt material is coupled to a hot-side heat sink.

The invention provides a product similarity judgment method and device and a server cluster. According to the embodiment, when the similarity among products needs to be judged to recommend similar products to a user who is possibly interested in the similar products or realize classification management and the like of a large quantity of products according to the similarity, at least one piece ofproperty information of a product is obtained, wherein the property information refers to factors possibly influencing product selection by the user or factors influencing classification by the user,such as a CPU, a hard disk, a memory, size, thickness and other property information of a notebook computer; and next, a current property weight value corresponding to each piece of property information is determined, wherein the current property weight is a probability reflecting the influence of the corresponding property information on user fondness of the product with the corresponding property information. In this way, based on the property information and the current property weights corresponding to the property information, the similarity among multiple products can be calculated moreaccurately, and therefore the application reliability based on a product similarity calculation result is improved.

Coating composition suitable for multi-layer lacquerings, with a binder composition which comprises: A) 25 to 75 wt. % of carboxyl-functional (meth)acrylic copolymers and / or carboxyl-functional polyesters, the carboxyl functionality of which corresponds to an acid number of 15 to 300 mg KOH / g, B) 25 to 75 wt. % of epoxide-functionalized crosslinker resins, at least one of which is a (meth)acrylic copolymer which has been prepared co-using tert-butyl (meth)acrylate, C) 0 to 50 wt. % of polyols which have at least two hydroxyl functions in the molecule, D) 0 to 40 wt. % of components which crosslink with hydroxyl groups to form ethers, and / or of a crosslinking agent based on triazine, E) 0 to 40 wt. % of polyisocyanates, F) 0 to 50 wt. % of at least one organic polyanhydride with at least two cyclic carboxylic acid anhydride groups per molecule, G) 0 to 20 wt. % of reactive thinners with an epoxide function, H) 0 to 10 wt. % of one or more catalysts for the reaction of carboxyl and epoxide groups.

A method, an apparatus, and a system for enhancing application reliability of a script-based service are disclosed. The method includes: analyzing data source information of a script-based service; obtaining current state information of the data source of the script-based service according to the analysis result; and judging the availability state of the script-based service according to the obtained current state information. With the technical solution of the present invention, a related analysis function is added to a script-based service server to analyze related data source information in the script-based service logic and mark the script-based service. In this way, a user can know the state of the script-based service when requesting a service, thus avoiding unnecessary service trials, saving system resources, and improving the user experience.

The invention provides a cascade full-bridge direct-current breaker. The cascade full-bridge direct-current breaker comprises a main through-flow branched circuit, a transfer branched circuit and an energy absorption branched circuit which are in parallel; the main through-flow branched circuit comprises a first full-bridge module and a mechanical switch which are connected in series; the transfer branched circuit comprises N second full-bridge modules which are connected in series successively; the energy absorption branched circuit comprises M lightning arresters; and the full-bridge modules adopt bridge-arm circuits or diode bridge-arm circuits composed of full-control devices. Through the technical scheme provided in the invention, nonlinear resistance voltage sharing is adopted, the constitution form is greatly simplified, and the total cost and volume of the equipment are reduced; compact arrangement of the cascade full-bridge direct-current breaker is facilitated, the stray parameter is easily reduced, overvoltage inhibition is realized, the overall application reliability is improved, high-speed reclosing of the cascade full-bridge direct-current breaker in several milliseconds can be realized, the application range of the cascade full-bridge direct-current breaker is expanded, and the operation reliability and economical efficiency of a flexible multi-port and direct-current power grid are further improved.

The invention discloses a digital phase-shift circuit in the technical field of a power system. The digital phase-shift circuit comprises a counting, triggering and frequency dividing unit, a short circuit pulse counting unit and an over-current pulse counting unit. An improved AC power source including the digital phase-shift circuit comprises a main loop and a control loop which is connected with the main loop and transmits a work state and a control command; the main loop comprises an input filter, an AC-DC voltage adjusting circuit, a DC filter, a DC-AC converter and an output filter, allof which are connected sequentially; and the control loop comprises a variable frequency trigger circuit, a man-machine interaction module and the digital phase-shift circuit according to any one of claims 1 to 3. The digital phase-shift circuit, disclosed by the invention, solves the problems of output waveform distortion, small frequency adjustment range, influence to input power source, complex circuit and the like of the conventional voltage adjusting and frequency adjusting power source which adopts a thyristor voltage adjusting circuit.

The invention discloses a steam generating system and a water scale detecting method thereof. The steam generating system comprises a steam generator body, a water supply assembly, a heater, a temperature sensor, and a control panel, wherein at least part of a heating area of the heater is positioned above water level when the steam generating system operates; the temperature sensor is arranged above the water level when the steam generating system operates; the control panel is connected with the water supply assembly, the heater and the temperature sensor; the control panel controls the water supply assembly and the heater to work for controlling the steam generating system to generate steam; and the control panel is further used for controlling the water supply assembly and the heater according to a preset process, obtaining the temperature detected by the temperature sensor, and judging whether water scales are generated in the steam generator body or not according to a fluctuationcondition of the temperature detected in the temperature sensor. Water scale clearing and reminding are realized through a mode of combining the temperature sensor with water supply control, so thatgeneral production cost can be effectively reduced, and application reliability is improved.

The invention relates to an increment type Sigma-Delta digital-to-analog converter. The overall circuit is implemented by using a switched capacitor structure, the circuit uses the correlated double-sampling technique to reduce imbalance and errors, the increment type Sigma-Delta digital-to-analog converter is composed of two levels of integrators, and the first level integrator adopts a gain bootstrap operational amplifier. The increment type Sigma-Delta digital-to-analog converter provided by the invention has a clear and simple circuit structure, and has the advantages of high precision andlow power consumption.

The invention discloses a method for manufacturing an insulated gate bipolar transistor, comprising the following steps: providing a semiconductor substrate of a first conductivity type, selectively forming a deep well region of a second conductivity type at a first main surface side of an active region of the semiconductor substrate, and selectively forming a protection terminal of the second conductivity type in a terminal protection region around the active region; implanting ions of the first conductivity type at the first main surface side of the active region of the semiconductor substrate of the first conductivity type; selectively photoetching and etching a gate oxide layer and a polycrystalline silicon layer to form a polycrystalline silicon gate and a window; and continuing to implant ions of the second conductivity type in the position of the deep well region at the first main surface side of the active region of the semiconductor substrate based on the window and activating the ions to form a base region of the second conductivity type. On the premise of not increasing the thermal process or even reducing the thermal process, the well junction depth is expanded largely, the anti-latch-up capability is improved, and the application reliability of products is improved.

The invention relates to an intelligent well lid monitoring system based on an Internet of Things architecture. The system comprises an intelligent well lid, an intelligent electronic key and a well lid monitoring management platform, the intelligent well lid comprises a well lid body, a passive electronic lock and an intelligent monitoring module, the passive electronic lock and the intelligent monitoring module are both connected with the well lid body, the intelligent electronic key is matched with the passive electronic lock, and the passive electronic lock is opened or closed by making contact with the passive electronic lock through the intelligent electronic key. The intelligent monitoring module comprises a sensor unit, a processor and a wireless communication unit which are connected in sequence. The sensor unit is used for sensing the opening and closing state, environment and position of the intelligent well lid. The processor is used for acquiring sensing data and uploadingthe data through the wireless communication unit; the wireless communication unit is connected with the well lid monitoring management platform through the low-power-consumption narrow-band Internetof Things. Compared with the prior art, the system has the advantages of being safe, reliable, high in expansibility, high in well lid opening and closing efficiency, scientific in management, good ineconomic benefit and the like.

The invention discloses a cloud-side-end collaborative meteorological intelligent early warning system. The system comprises a cloud end for large-area meteorological early warning, an edge end for small-area meteorological early warning and a terminal for collection and result display. The cloud end performs large-area meteorological early warning analysis and meteorological intelligent early warning model training on meteorological data acquired from the terminal, and issues the meteorological data to the edge end; the edge end obtains corresponding required data from each terminal accordingto the meteorological intelligent early warning model obtained from the cloud end, inputs the data into the meteorological intelligent early warning model and performs model calculation to obtain meteorological early warning analysis of the small area, analyzes the comprehensive meteorological early warning information of the large area and the small area in combination with the characteristics of the area where the edge end is located, and uploads the small-area and comprehensive meteorological early warning information to the cloud end for large-area meteorological early warning for storage, and issues the comprehensive meteorological early warning information to the terminal for collection and result display for early warning display. The system is high in meteorological early warningprecision and high in speed.

The invention relates to a low-current grounding fault positioning method and system, a monitoring device, equipment and a medium. The method comprises steps of detecting zero-sequence current abruptchange energy by monitoring points along the line and carrying out starting quickly; recording fault waveforms, AND then, according to opposite characteristics of upstream and downstream transient zero-sequence current mutation directions of a fault point, calculating whether the slope of the previous sampling point of the first extreme point of the zero-sequence current in the low-frequency bandcontaining the power frequency is positive or negative; correspondingly fitting a maximum value point curve or a minimum value point curve in an original signal by adopting cubic spline interpolation;and finally calculating a break variable characteristic value, and carrying out fault positioning according to the break variable characteristic value. The storage medium is a computer readable storage medium, and a computer program used for achieving the reset control method is stored on the storage medium. The equipment includes a processor and a memory storing the computer program, and is capable of implementing the reset control method. According to the invention, rapid fault positioning can be carried out when a small-current grounding system has a single-phase grounding fault.

The invention discloses a photobacterium damsela rapid detection primer, a kit and an application. The primer consists of an outer primer and an inner primer, wherein the outer primer consists of an outer primer upstream primer shown by SEQ ID NO.1 and an outer primer downstream primer shown by SEQ ID NO. 2; the inner primer consists of an inner primer upstream primer shown by SEQ ID NO.3 and an inner primer downstream primer shown by SEQ ID NO.4. The problems that the detection of photobacterium damsela is long in cycle and high in detection cost, can not be applied to on-site detection, and the like in the prior art can be solved by adopting the photobacterium damsela rapid detection primer; the primer disclosed by the invention is rapid and ordered in detection, realizes the routinization and standardization of the detection process, is standard in operation, and is hard to cause errors; an amplification primer has very good specificity and accuracy; by adopting a method of embedding dyes, a reaction pipe does not need to be opened after completing reaction, and results can be directly observed by naked eyes after taking out the reaction pipe, thus preventing amplified products from polluting follow-up samples to be detected, and improving the application reliability of the kit.

The invention provides a mooring cable, a mooring UAV (unmanned aerial vehicle) assembly and a mooring UAV system. The mooring cable comprises an outer sheath, a non-metal reinforcing core, a signal transmission line and a composite conductor insulating wire core, wherein the non-metal reinforcing core, the signal transmission line and the composite conductor insulating wire core are arranged in the outer sheath and extend in the length direction of the outer sheath. The signal transmission line and the composite conductor insulation wire core SZ are twisted to form a cable core, and the nonmetal reinforcing core is disposed between the inner wall of the outer sheath and the cable core. The composite conductor insulating wire core comprises an insulating layer and a composite conductor coaxially arranged inside the insulating layer, and the composite conductor is composed of a copper wire, a copper-clad aluminum wire and an aluminum alloy wire which are formed by twisting, and the copper wire and the copper-clad aluminum wire are respectively provided with a plating layer. The weight of the cable can be effectively reduced, the conductive capability of the cable can be effectivelyimproved, the service life of the cable can be effectively prolonged, and the application reliability of the mooring cable can be effectively improved.

The present invention provides a transverse groove-type MOSFET device, belonging to the technical field of semiconductor power devices. A polycrystalline silicon region or a Schottky contact metal region is formed at the circumference side of the gate structure to allow polycrystalline silicon region or the Schottky contact metal region and the drift region to form heterojunction or Schottky contact with rectification characteristics. Because the heterojunction or Schottky contact is multiple sub devices and is lower in conduction pressure drop compared to a traditional parasitic diode, the reverse recovery characteristic of the device can be optimized, and an excellent three-quadrant on-state performance is achieved; and compared to an external antiparallel diode mode, the size of the electrical power system can be significantly reduced, the package cost is reduced, interconnection lines are reduced, and the parasitic effect of the interconnection lines is reduced so as to improve thereliability of the system. Aiming at the problem that the device gate medium electric field is too high, the optimization is design to improve the long application reliability performance of the device. Besides, the preparation method of the device is simple and controllable and easy to achieve, and promotes the popularization of the semiconductor power device in the many actual applications.

The invention relates to a circuit board for replacing golden metal strips and a manufacturing method of the circuit board. The circuit board solves the technical problem that golden metal strips of an existing circuit board are high in cost. The method includes the following steps that firstly, a semi-finished circuit board obtained after resistance welding is pretreated; secondly, alloy electroplating is conducted on the pretreated semi-finished circuit board, at least one alloy layer is formed on the surface of a copper layer of the plug-pull connection position of the semi-finished circuit board, and then semi-finished circuit board obtained after alloy electroplating is washed through water; and thirdly, the electroplated semi-finished circuit board is polish-brushed and dried, so that the finished circuit board is obtained. The circuit board has the beneficial effects that the plug-pull connection position of the circuit board is electroplated with the alloy-plated layer; and under the condition of meeting contact resistance, the oxidation resistance and corrosion resistance of products are improved remarkably compared with a gold finger circuit board, wear resistance is improved remarkably, the application reliability of the products is higher, and manufacturing cost is lower.

The invention provides a digital compensation method for adjusting an installation error of strapdown equipment. The strapdown equipment is connected with a computer system provided with a strapdown vertical reference benchmark setup system; the installation errors of a course angle, a pitching angle and a rolling angle of the strapdown equipment are measured by angle measurement equipment; the measured installation error angles are input into the computer system provided with the strapdown vertical reference benchmark setup system; the installation error angles are inserted into a formula to obtain a transformation matrix from a strapdown coordinate system to an installation coordinate system by the strapdown vertical reference benchmark setup system; the measurement information of a spinning top and an accelerometer is updated by the error matrix to finish the compensation of the installation error; and correct gesture information can be solved by the traditional strapdown gesture updating method of compensated instrument information strapdown. By adopting the digital compensation method, the material and time can be greatly saved; and the installation error accuracy is improved.

A control chip of a primary-side feedback switch power source comprises a voltage control unit (101), an RS trigger (102), a chopper unit (103), a driving unit (104), a current control unit (105) and three pins VDD, GND and OUT. The pin OUT outputs to drive an external switch tube after the chopper unit (103) is amplified by the driving unit (104), the voltage control unit (101) and the current control unit (105) are respectively connected with an S end and an R end of the RS trigger (102) respectively to control the chopper unit (103) through the RS trigger. The control chip is characterized in that the pin VDD is used as a feedback voltage collecting point, and the pin OUT is used as a primary-side current signal collecting point. The control chip of the primary-side feedback switch power source solves the problems of high withstand voltage and cost and non-flexible application of a control chip in the prior art.

The invention discloses a water and electricity integrated intelligent diesel heating device, facility and system and a working method thereof, and belongs to the field of automobiles. The water and electricity integrated intelligent diesel heating device comprises an engine, a main oil tank, an auxiliary oil tank, an engine water inlet / outlet, an oil pump, an oil return regulating tee joint, an oil absorbing regulating tee joint, a filter, a regulating valve, a water circulation heating pipeline, a water and electricity oil quantity sensor, an electric oil tank heater and an integrated oil quantity sensor. The main oil tank and the auxiliary oil tank are communicated with the engine through a heating oil supply pipeline, the engine water inlet / outlet is communicated with the main oil tank through a circulation water pipeline, the oil pump, the oil return regulating tee joint, the oil absorbing regulating tee joint and the filter are sequentially arranged on the heating oil supply pipeline, the regulating valve is arranged on the circulation water pipeline, the water circulation heating pipeline is arranged inside the main oil tank, the water and electricity oil quantity sensor and the electric oil tank heater are arranged on the end portion of the water circulation heating pipeline and the integrated oil quantity sensor is arranged on the end portion of the auxiliary oil tank. The water and electricity integrated intelligent diesel heating device, facility and system are low in cost and obvious in heating effect and meanwhile, solves the problem of potential safety hazards existing in existing products.

The invention discloses a neutron-shielding aluminum-based composite material and a preparation method thereof. The neutron-shielding aluminum-based composite material adopts pure aluminum as a matrixmaterial, the shielding components comprises the following ingredients of, by mass percentage, 20%-50% of metal hydride, 10%-20% of 10B-rich elementary substances or compounds, and the balance aluminum and inevitable impurities. The preparation method comprises the following steps of (1), weighing raw material powder according to the proportion of the aluminum-based composite material; (2), mixing the material under the protection condition of argon; (3), carrying out cold isostatic pressing forming on the mixture to obtain a cold isostatic pressed ingot blank; (4), putting the cold isostaticpressing ingot blank into an aluminum sleeve, degassing at the temperature of 300-450 DEG C, and carrying out hot isostatic pressing forming; and (5), removing the aluminum sleeve to obtain the aluminum-based composite material. The neutron-shielding aluminum-based composite material has good slowing-down and shielding effects on fast neutrons of more than 0.1 Million electron Volts, and has goodheat resistance, irradiation resistance and structural mechanical properties.

The invention discloses a method and a system for intelligent monitoring of micro data center refrigeration equipment. The method comprises steps of transmitting information collected by a refrigeration system to a monitoring and management system; and after the monitoring and management system receives the information, using an expert diagnosis module in the monitoring and management system to perform equipment health analysis and diagnosis according to parameters collected by the refrigeration system. The method and the system have advantages of significantly reducing the time required for personnel to go to test and maintain equipment, and saving operation and maintenance cost; helping customers quickly recover equipment and ensure business continuity; adjusting the settings to solve the problem or notify the relevant staff in a timely manner while the equipment is not shut down; taking preventive measures to reduce the professional level of operation and maintenance personnel; and at the same time, reducing the number of professional after-sales service, improving fault handling efficiency, reducing operation and maintenance cost, helping to locate the fault boundary and improve products, and greatly improving product application reliability.

The embodiment of the invention provides a financial service risk prediction method and device. The method comprises the steps of receiving a financial service risk prediction request for a target user; selecting one of the plurality of financial service risk prediction models as a target financial service risk prediction model based on the financial service request type, wherein the financial service risk prediction model is obtained by training by using respective corresponding training sets, and the training sets are target data sets obtained by performing data binning on historical user financial information of multiple users by using a Spark system; and inputting the user financial information into the target financial service risk prediction model, and taking output as a financial service risk prediction result of the target user. The reliability, efficiency and automation degree of the binning process of the training data can be effectively improved, and then the accuracy, efficiency and automation degree of financial service risk prediction of financial institution users by applying the financial service risk prediction model obtained by binning data training can be effectively improved.

The embodiment of the invention provides a capsule, a transformer oil conservator and a gas leakage detection method and device. The capsule comprises an elastic capsule bag and a gas guide componentwhich are arranged in the transformer oil conservator; the inner cavity of the elastic capsule bag communicates with the outside of the transformer oil conservator through a through hole formed in thetop of the transformer oil conservator, and a sealed oil containing cavity is formed between the outer wall of the elastic capsule bag and the inner wall of the transformer oil conservator. The air guide component is fixedly arranged at the position, close to the through hole, of the outer wall of the elastic capsule bag and extends in the length direction of the elastic capsule bag so as to prevent the elastic capsule bag from being attached to the inner wall of the top of the transformer oil conservator. According to the transformer oil conservator, the phenomenon that the capsule is attached to the inner wall of the top of the transformer oil conservator can be effectively avoided, the situation can be known in time when gas leakage happens to the transformer oil conservator, and thenthe application reliability of the capsule can be effectively improved.

The invention provides an internal bus for an aerospace electronic product, which is used for performing information interaction between a master module and a plurality of slave modules. Bus signals comprise a test signal, a system signal, a digital I / O (Input / Output) signal, an auxiliary functional signal, a power supply signal and a time clock synchronization signal; a bus time sequence is classified into a main module operation period using waiting and a main module operation period not using waiting; each operation period is classified into a reading time sequence and a writing time sequence. The bus provided by the invention has high universality and compatibility specific to aerospace electronic products, and contributes to improvement of module interconnection signal quality and working reliability.