49results about How to "Control reliability" patented technology

The invention discloses a rolling optimal dispatching method based on wind power output prediction error, which comprises the following steps: determining the output power plan value of a corresponding unit through optimization and the size of wind power reserve capacity; The uncertainty of wind power forecasting error is modeled and analyzed from two angles of time and power. The wind power prediction error probability density function of different power under different time section is obtained. Formulate the strategy of positive and negative rotation reserve within the day, underestimate thecost, and join the rolling scheduling layer within the day; To positive, negative rotation reserve high, underestimating the cost; The minimum cost of rolling adjustment is the objective function ofthe intra-day scheduling layer, which satisfies the constraints of climbing rate and rotating reserve capacity of each time section of the unit, and the results of the day-ahead planning layer are optimized. The risk caused by prediction errors is effectively controlled, and under the constraint of line capacity, rolling optimization of unit output and reserve capacity is achieved, so as to to achieve the optimal scheduling of economy.

The invention discloses low-rank coal quality-improving pyrolysis equipment. The low-rank coal quality-improving pyrolysis equipment comprises a closed kiln with a feed inlet and a discharge outlet. A high-temperature gas pipeline is arranged in the kiln. A low-rank coal propelling and decomposing channel is formed between the high-temperature gas pipeline and the inner wall of the kiln. A decomposed gas collection pipe communicated with the low-rank coal propelling and decomposing channel is arranged on the kiln. The high-temperature gas pipeline is communicated with a high-temperature gas output / input mechanism arranged on the surface of the kiln. The low-rank coal quality-improving pyrolysis equipment has the advantages that the high-temperature gas output / input mechanism arranged on the surface of the kiln is communicated with the high-temperature gas pipeline to enable high-temperature gas to pass in the high-temperature gas pipeline, heat brought by the high-temperature gas is fully absorbed and decomposed by low-rank coal, and fuel gas, tar gas and coal with high heat value are generated in the low-rank coal propelling and decomposing channel through decomposition.

The invention provides a nuclear magnetic resonance signal processing method. The method is characterized by comprising the following steps: collecting nuclear magnetic resonance signal data; calculating the ratio of extreme difference between a maximum sampling value and a minimum sampling value of the collected nuclear magnetic resonance data, and screening gross error data and rejecting the gross error data; calculating the nuclear magnetic resonance data by using studentized residual, and recognizing abnormal points in the nuclear magnetic resonance data according to a critical value of an absolute value of the studentized residual; measuring impact of the abnormal points through a statistic method to determine the choice of the abnormal points; further checking the linear fitting quality of the data through checking of related coefficients, signification checking of a regression equation and checking of residual standard difference, and performing linear fitting on the nuclear magnetic resonance data of which the gross error data and the abnormal points are rejected to obtain a final standard calibration straight line. The nuclear magnetic resonance signal processing method can perform linear fitting on the collected nuclear magnetic resonance data quickly, efficiently, reliably and accurately.

The invention relates to a troposphere long-distance sub centimeter-level real-time dynamic satellite navigation positioning method. The troposphere long-distance sub centimeter-level real-time dynamic satellite navigation positioning method includes the following steps that: firstly, the double-difference ambiguity of L1 and L2 carriers is fixed, and thereafter, an ionosphere weighted double-difference observation equation containing troposphere parameters is constructed; secondly, decorrelation parameters are determined, in a calculation process of the decorrelation parameters, the truth values of unknown numbers need to be used, and a co-factor matrix of least-square position parameters which do not contain troposphere parameters is adopted to replace a quadric form matrix of parameter truth values in a decorrelation parameter solution process; and finally, an optimal decorrelation solution is obtained according to the decorrelation parameters, and therefore, a reliable sub centimeter-level coordinate estimated value can be obtained. Compared with the prior art, the troposphere long-distance sub centimeter-level real-time dynamic satellite navigation positioning method of the invention has the advantages of high precision, high stability, wide application range and the like.

The invention belongs to the technical field of test and measurement and particularly relates to a BP (Back Propagation) neural network based high-precision correction and test method for a resonance cylinder pressure sensor, aiming to increase the correction and test precision for the resonance cylinder pressure sensor. The method comprises the steps of: structuring a sensor BP neural network of a dual-implicit-strata network structure, wherein input variables of the network structure are respectively the output period T and the temperature voltage V of the sensor, and output variables of the network structure is the pressure value P; acquiring output periods and temperature voltages of the sensor at different temperature under different pressure input conditions; and collecting output quantities of the sensor at different temperature under different pressure conditions to serve as correction and test as well as inspection sample points. According to the method, with the dual-implicit-strata network structure, the number of network parameters is reduced while the output precision is guaranteed; and the correction and test precision of the resonance cylinder pressure sensor is increased by 25%, and the high-precision correction and test of the sensor is realized.

The invention relates to a method for designing the reliability index of a space radiation environment, in particular to a method for designing the space radiation environment effect failure rate of a spacecraft to improve the reliability of the spacecraft. The method comprises the steps that a total dose effect failure rate calculation module is used for calculating the total dose effect failure efficiency of the spacecraft; a displacement damage effect failure rate calculation module is used for calculating the displacement damage effect failure rate of the spacecraft; a single-particle effect failure rate calculation module is used for calculating the single-particle effect failure rate of the spacecraft; the calculated total dose effect failure rate, the displacement damage effect failure rate and the single-particle effect failure rate are input into a space radiation environment effect failure rate calculation module to be calculated, and the space radiation environment effect failure rate of the spacecraft is obtained. According to the method for designing the reliability index of the space radiation environment, the reliability analysis and optimization design guidance of an electronic system of the spacecraft can be facilitated, and the design and implementation cost of aerospace engineering is further lowered.

The invention discloses a system for reducing the mine temperature by use of constant-temperature water bearing formation. The system comprises a first circulating water pump, a second circulating water pump, a third circulating water pump, a constant-temperature water bearing layer, a mining area low-temperature water sump and a tunneling roadway low-temperature water pipe and / or stope face low-temperature water pipe, wherein a water outlet of the tunneling roadway low-temperature water pipe and / or stope face low-temperature water pipe is connected with a water inlet of the constant-temperature water bearing layer through the first circulating water pump; a water outlet of the constant-temperature water bearing layer is connected with a water inlet of the mining area low-temperature water sump through the second circulating water pump; and a water outlet of the mining area low-temperature water sump is connected with a water inlet of the tunneling roadway low-temperature water pipe and / or stope face low-temperature water pipe through the third circulating water pump. According to the invention, a constant-temperature water source in the formation is used as the main cold water source for reducing the mine temperature, and an auxiliary mine temperature reducing device is adopted at the same time to achieve the aim of preventing heat damage of a mine. The system saves energy and has high value in industrial application.

The invention discloses an assessment method for time sequence construction reliability of a wind turbine generator and the energy storage of a power distribution network, and the method comprises thesteps of obtaining the basic data of any time sequence construction scheme of the wind turbine generator and the energy storage of the power distribution network, and determining the configuration capacity and configuration position of the wind turbine generator and the energy storage corresponding to each intermediate construction year in the planning; calculating the reliability index of the power distribution network in each construction stage in the time sequence construction scheme; calculating a power distribution network reliability Talr coefficient of the time sequence construction scheme; and obtaining the reliability Talr coefficients of the plurality of time sequence construction schemes, and taking the time sequence construction scheme corresponding to the minimum reliabilityTalr coefficient as the time sequence construction scheme with the optimal reliability of the wind turbine generator and energy storage of the power distribution network. According to the method, thereliability Talr coefficient is adopted as an evaluation index of the reliability of the time sequence construction scheme, so that the risks brought to the overall reliability of the scheme due to the existence of a construction stage with poor reliability are avoided, and the method has a good application prospect.

The invention relates to a fan-out packaging structure and the production technology of a high power device. The fan-out packaging structure is characterized by comprising a core board, wherein a groove body of the core board is provided with a chip, the core board, the chip, a lower-layer medium material and an upper-layer medium material are stitched together, the upper-layer medium material is arranged above the back surface of the core board, the surface of the upper-layer medium material is provided with a metal layer, the upper-layer medium material is provided with an opening, the opening is arranged above the back surface of the chip, a heat sink is filled in the opening, the lower surface of the lower-layer medium material is provided with a welding resistance layer, the welding resistance layer is provided with an RDL line layer, a welding disc of the RDL line layer is provided with a BGA ball, the lower-layer medium material is provided with a laser blind hole, the laser blind hole is filled with a plated metal, the RDL line layer is mutually connected with the welding disc on the front surface of the chip through the plated metal in the laser blind hole, and the surface of the chip is wrapped in a resin layer. The fan-out packaging structure solves a heat radiation problem existing in fan-out packaging of the high power device, the technology is simple, and the fan-out packaging structure is compatible with multiple chips.

The invention provides a pipeline device for a car air conditioning system. The pipeline device comprises a metal pipe, a rubber pipe and a metal pressing sleeve; the metal pipe comprises a metal pipe body and an extension part connected with the metal pipe body, the extension part extends in the axial direction of the metal pipe body, the intersection of the metal pipe body and the extension part forms a step surface, and the outer diameter of the extension part is smaller than that of the metal pipe body; the rubber pipe wraps the outer circumferential surface of the extension part; the inner circumferential surface of the metal pressing sleeve is pressed on the outer circumferential surface of the rubber pipe, one open end of the metal pressing sleeve is provided with a bent part which is bent towards the extension part, the first surface of the bent part is attached to the outer circumferential surface of the extension part, a sealing groove is formed in the outer circumferential surface of the extension part, a sealing ring is arranged in the sealing groove, and the sealing ring is used for making the metal pipe and the rubber pipe sealed in the radial direction.

The invention discloses a method for producing an oil-field drag reducing agent. The drag reducing agent comprises the following raw material components in parts by weight: a main agent: 30-50 parts of polyethylene oxide, 30-80 parts of acrylamide, 100-250 parts of a sulfonate, 35-95 parts of modified acrylic acid, 200-280 parts of polyisobutylene, 100-160 parts of an organosilicone, 5-15 parts ofpolyimide, 50-150 parts of a sodium secondary alkylsulfonate, 10-90 parts of an allyl resin, 20-50 parts of an amino resin, and 300-600 parts of distilled water; and an auxiliary agent: 20-45 parts of a pressure-sensitive adhesive, 10-25 parts of a curing agent, 25-35 parts of a monoalkyl phosphate, 18-35 parts of polyvinyl acetate, 60-100 parts of isopropyl alcohol, 75-150 parts of benzyl alcohol, and 60-120 parts of a polyether polyol. The invention relates to the technical field of drag reducing agents. According to the method for producing the oil-field drag reducing agent, the oil-fielddrag reducing agent can adapt to a relatively low temperature after the production is completed, the production environment of the drag reducing agent in the high-latitude is effectively maintained, and the drag reducing agent can maintain the same experimental effects outdoors as indoor tests by the combined setting of the organosilicone, the allyl resin and the amino resin when the drag reducingagent is at work.

The invention discloses a wireless intelligent fire-fighting shutter door control system and method. The control system uses a wireless communication mode, and a fire-fighting shutter door controller used for monitoring the state of a shutter door is arranged on a fire-fighting shutter door electric unit. A main controller is arranged at the side of a fire-fighting control room to realize state monitoring over the shutter door and shutter door controlling in a fire-fighting linkage process. A plurality of signal relay transmission units (routers) are arranged between the fire-fighting shutter door controller and the main controller at the side of the fire-fighting control room and are used for signal relay transmission between the main controller at the side of the fire-fighting control room and the fire-fighting shutter door controller. In normal conditions, the state of the shutter door is monitored; and in the fire-fighting linkage process, the shutter door is controlled to close and open, and fire-fighting fire-proof isolation is realized. The wireless intelligent fire-fighting shutter door control system and method have the advantages that the interference resistance is high, automatic monitoring is realized, installation and debugging are convenient, the maintenance cost is low, the control requirements of the fire-fighting shutter door monitor system such as reliability, interference resistance and stability are met, and the wireless intelligent fire-fighting shutter door control system and method can be widely applied to building fire-fighting systems.

The invention provides a pipeline device for a car air conditioning system. The pipeline device comprises a metal pipe, a rubber pipe and a metal pressing sleeve; the metal pipe comprises a metal pipe body and an extension part connected with the metal pipe body, the extension part extends in the axial direction of the metal pipe body, the intersection of the metal pipe body and the extension part forms a step surface, and the outer diameter of the extension part is smaller than that of the metal pipe body; the rubber pipe wraps the outer circumferential surface of the extension part; the inner circumferential surface of the metal pressing sleeve is pressed on the outer circumferential surface of the rubber pipe, one open end of the metal pressing sleeve is provided with a bent part which is bent towards the extension part, the first surface of the bent part is attached to the outer circumferential surface of the extension part, a sealing groove is formed in the outer circumferential surface of the extension part, a sealing ring is arranged in the sealing groove, and the sealing ring is used for making the metal pipe and the rubber pipe sealed in the radial direction.

The invention relates to the technical field of circuit designing, in particular to a self-locking power switch comprising a first MOS (metal oxide semiconductor) transistor, a second MOS transistor, a first triode, a second triode, a third triode, a charger, a battery and other components. System power of an electronic device can be provided through the first MOS transistor by a charger and can also be provided through the second MOS transistor by the battery; a self-locking circuit composed of the first triode and the second triode is capable of effectively controlling reliable connection or disconnection of the electronic device and the battery, power consumption of the battery is maximally reduced, and the self-locking power switch is applicable to various applications, such as remote transporting of electronic equipment.

The invention provides a method for controlling a terminal to enter a secret communication, a secret communication method and a terminal for secret communication. The terminal judges whether a handshake terminating mark is received, if so, the terminal enters the secret communication. The terminal judges whether the handshake terminating mark is received to control the time when the terminal enters the secret communication, so that the secret communication parties can achieve the synchronization and the secret communication can be implemented.

The invention discloses a wireless intelligent tunnel fire monitoring system and method, and a wireless communication mode is adopted. The method comprises the steps that a main controller is arranged on the side of a fire protection control room to conduct tunnel fire situation monitoring and fire protection linkage control over a tunnel fire; a plurality of fan controllers are arranged on the side of a fan; a plurality of fire detectors and fire alarms are arranged in a tunnel, and a fire broadcast controller is arranged in the tunnel; a plurality of signal relay transmission units (router) are arranged between the controllers and the main controller arranged on the side of the fire protection control room, and the signal relay transmission units are used for signal relay transmission between the controllers and the main controller arranged on the side of the fire protection control room; a tunnel fire condition is monitored under a normal situation; and when a situation of fire protection linkage occurs, the fan is controlled to conduct fire protection, smoke exhausting, fire alarming and fire fighting broadcast starting. The wireless intelligent tunnel fire monitoring system has the advantages of strong anti-interference, automatic monitoring, convenient installing and debugging, low maintaining cost and the like. The control requirements of reliability, anti-interference and stability on the tunnel fire monitoring system are met, and the wireless intelligent tunnel fire monitoring system can be applied to a tunnel fire protection and ventilating system widely.

The invention discloses a wireless intelligent fire protection air valve control system and a wireless intelligent fire protection air valve control method. According to the wireless intelligent fire protection air valve control system, based on a wireless communication mode, an air valve controller is arranged on a fire protection air valve control electric unit and is used for air valve state monitoring; a main controller is arranged at a fire protection control room side and is used for carrying out real-time processing on air valve state monitoring and air valve-fire protection linkage control; and a plurality of signal relaying transmission units (routers) are arranged between the air valve side controller and the fire protection control room side main controller and are used for signal relaying transmission between the fire protection control room side main controller and the air valve side controller. In a normal working condition, the wireless intelligent fire protection air valve control system monitors the state of an air valve; and in fire protection linkage, the wireless intelligent fire protection air valve control system controls the opening and closing of the air valve to achieve fire protection smoke exhausting actions. The wireless intelligent fire protection air valve control system of the invention has the advantages of high anti-interference performance, automatic monitoring, convenient installation and debugging, low maintenance cost and the like, and can meet control requirements for reliability, anti-interference performance and stability, and can be widely used in fire protection systems and ventilation and air conditioning systems of buildings.

The invention provides a method for making an acid solution and a silicon condenser microphone. The acid solution is formed by mixing a strong acid and a buffer acid in a weight ratio of 1:2 to 1:5, wherein the PH of the strong acid is less than 3, and the buffer acid is a mixture of NH4F and HF. Compared with the related technology, the acid solution can effectively remove a sacrificial oxide layer and has little impact on the material of other silicon condenser microphone structures, and the silicon condenser microphone produced by the process is high in sensitivity, good in consistency, and high in stability.

The invention discloses a silicon wafer worktable for an LED chip automatic sorting machine. The silicon wafer worktable comprises an X-axis worktable and a Y-axis worktable, wherein an X-axis guide rail is arranged on the X-axis worktable; the X-axis guide rail is provided with an X-axis guide rail sliding block capable of sliding along the X-axis guide rail; the Y-axis worktable is arranged at the upper portion of the X-axis worktable; the Y-axis worktable can slide relative to the X-axis worktable; the Y-axis worktable is fixedly connected with the guide rail sliding block; and the Y-axis worktable is connected with the X-axis worktable through the X-axis guide rail sliding block.

The invention discloses a counter electromotive force detection circuit of a brushless motor controller, the circuit comprises a controller chip and two counter potential detection resistors, and is characterized by further comprising a control element, and the control element is connected in series between the two counter electromotive force detection resistors and is connected with an analog quantity input port of the controller chip; and a control signal of the control element comes from signal output after the controller chip is awakened. According to the invention, a control element (MOSFET or IGBT device and the like) is added to disconnect an analog quantity detection circuit in the dormant state, so that the reliability of the control chip in the dormant state is improved.

The invention relates to a fan-out packaging structure and its production process, which is characterized in that: it includes a core board, a chip is arranged in a groove on the core board, a pad is provided on the front side of the chip, and bumps are arranged on the pad; The board, the chip, and the dielectric material on the front and back of the chip are pressed together, the pads and bumps on the front of the chip are embedded in the dielectric material, and the gap between the chip and the tank is filled with the dielectric material; the dielectric material on the back of the chip A metal layer is provided on the outer surface, a solder resist layer is provided on the outer surface of the dielectric material on the front of the chip, an RDL circuit layer is arranged in the solder resist layer, and BGA balls are arranged on the pads of the RDL circuit layer; the dielectric material on the front of the chip The material is provided with laser blind holes, which are filled with electroplated metal, and the RDL circuit layer is interconnected with the bumps on the front of the chip through the electroplated metal in the laser blind holes. The invention eliminates the restrictive condition of the active chip embedded in the organic substrate, improves the yield rate of device packaging, and reduces the cost of fan-out packaging.

The invention discloses a system for reducing the mine temperature by use of constant-temperature water bearing formation. The system comprises a first circulating water pump, a second circulating water pump, a third circulating water pump, a constant-temperature water bearing layer, a mining area low-temperature water sump and a tunneling roadway low-temperature water pipe and / or stope face low-temperature water pipe, wherein a water outlet of the tunneling roadway low-temperature water pipe and / or stope face low-temperature water pipe is connected with a water inlet of the constant-temperature water bearing layer through the first circulating water pump; a water outlet of the constant-temperature water bearing layer is connected with a water inlet of the mining area low-temperature water sump through the second circulating water pump; and a water outlet of the mining area low-temperature water sump is connected with a water inlet of the tunneling roadway low-temperature water pipe and / or stope face low-temperature water pipe through the third circulating water pump. According to the invention, a constant-temperature water source in the formation is used as the main cold water source for reducing the mine temperature, and an auxiliary mine temperature reducing device is adopted at the same time to achieve the aim of preventing heat damage of a mine. The system saves energy and has high value in industrial application.

The invention relates to a method for designing a reliability index of a space radiation environment, in particular to a design method for improving the reliability of a spacecraft by designing the failure rate of the space radiation environment effect of a spacecraft; it includes a calculation module for the failure rate using a total dose effect Calculate the total dose effect failure rate of the spacecraft; use the displacement damage effect failure rate calculation module to calculate the displacement damage effect failure rate of the spacecraft; use the single event effect failure rate calculation module to calculate the single event effect failure rate of the spacecraft. Calculation; input the calculated total dose effect failure rate, displacement damage effect failure rate and single event effect failure rate into the space radiation environmental effect failure rate calculation module for calculation, and obtain the space radiation environmental effect failure rate of the spacecraft. The design method of the present invention is helpful for reliability analysis of the spacecraft electronic system and guidance of the optimal design, and further reduces the design and implementation cost of aerospace engineering.

The invention discloses a multi-axis robot offline programming method. The method comprises the following steps that a robot three-dimensional model of a multi-axis robot and a task three-dimensionalmodel of an operation task are established, and the degree of approximation of the models are verified; a corresponding angular displacement of each joint point in the robot three-dimensional model isformulated according to the task three-dimensional model, and a corresponding angular displacement duration of each joint point is determined; all the joint points are programmed independently one byone, and debugging and verifying are carried out to control respective error proportion requirements; and combination joint debugging and verifying are carried out on each joint point, and finally anoverall error proportion is controlled. According to the multi-axis robot offline programming method, the high similarity can be ensured through verification of the degree of approximation, the reliability of offline programming is enhanced, programming is performed independently in a one-by-one mode, the difficulty of combination joint debugging in the next step can be reduced, and error causedby combination can be controlled by utilizing the combination joint debugging and verifying.

The invention discloses a control device of lighting devices, motors, solenoids or heating bodies connected by an AC single line. The control device comprises a control receiving part and a switching part or a switch functional part. When the control device is used for controlling the lighting devices, the motors, actuators or the heating bodies connected by the AC single line by means of switches, the control device can perform action control on colors, brightness, time and a scene sequence of the lighting devices or can perform selection control on the plurality of lighting devices in addition to a simple On / Off operation. If loads are motors, the control device can control actions of rotation starting / stopping, rotation speeds, rotation amounts, rotation time, rotation directions, and a scene sequence of the motors, control timed actions or perform selection control on the plurality of motors. The actuators can control the solenoids so as to control a displacement amount of a set object. The heating bodies can be directly controlled or indirectly controlled through setting target temperature. The control device is a device employing the plurality of switches, is economical and convenient in control, and is easier to implement since a wireless control means is adopted simultaneously.

The invention discloses a community digital health station with functions of automatic physical examination and medicine selling. The community digital health station comprises a frame body; heat insulation boards are respectively and fixedly installed on the top and at the periphery of the frame body; a door is arranged at one side of the frame body; an accommodation compartment is defined by theframe body and the heat insulation boards; the accommodation compartment is internally provided with a plurality of functional areas, i.e., an automatic physical examination area, an automatic medical laboratory testing area, an automatic physiotherapy area and an automatic medicine selling area; a control room is also arranged in the accommodation compartment. The community digital health station is simple in structure principle, high in degree of automation and convenient to use, can realize automatic physical examination, medical laboratory testing, physiotherapy and medicine selling, andcan realize remote expert consultation, thus greatly improving the diagnosis and treatment level of community hospitals and greatly reducing the hospital outpatient pressure.