114results about How to "Fast reliability" patented technology

A method includes receiving discovery messages from respective devices of an ad-hoc wireless network. The messages are received by a first device in the ad-hoc wireless network prior to a particular discovery interval. The discovery messages include information identifying the respective devices. The method further includes caching the information identifying the respective devices. During the particular discovery interval, a first discovery message is sent. The first discovery message includes a request to reserve a paging interval during the particular discovery interval. The first discovery message further includes an indication of the information.

The present invention relates to a high-speed testing box of the temperature changing which pertains to the field of equipment technology of environment testing. The characteristics are: an electromotor is positioned on the top of said workshop, and an axial-flow fan impeller; an upper chamber A of the box is formed by the wind inlet board positioned in the workshop and a liner and a lower chamber B of the box is formed by a wind outlet board and the liner; the testing can be performed quickly under the limit stress defined by the technique terms to find the working limitation of the product, and even to destroy the limitation finally; then, a high-accelerating stress filtering testing plan can be made according to the limitation defined by a lifetime testing, and the production deficiency can be eliminated through the high-accelerating stress filtering testing the make the product reliable in a short time; the most remarkable difference between the product in the present invention and the prior high and low temperature testing box reside in the rising speed of the temperature and the linear and gradual changing of the high temperature.

The invention discloses a mobile phone curved glass panel and a manufacturing method of the mobile phone curved glass panel. A curved glass panel body is formed by bending a mobile phone panel body toward the same side in an arc shape with the center line of the mobile phone panel body in the X-axis direction or the Y-axis direction as a center, or bending the periphery of the mobile phone panel body toward the same side in an arc shape with the center point of the mobile phone panel as the center, or the mobile phone curved glass panel comprises a main panel and curved panels. The curved panels are formed by bending one or more side edges of the main panel. The multiple curved panels are bent toward the same side relative to the main panel. The forming method includes the three steps of manufacturing a planar glass panel, manufacturing a graphite die and forming the curved glass panel. The good lubricating performance of graphite is used, through exerting certain pressure for deformation, heat deformation is achieved at the temperature below a glass softening point, the manufactured product is high in precision, the designing requirements of a 3D mobile phone glass panel are met, large-scale industrial production can be achieved, production cost can be reduced, and the requirement for personalized and fashionable mobile phones can be met for people.

A method for the stabilization of full-order flux observers for speed-sensorless induction motors in the regenerative mode. The method comprises determining the current vector of the induction motor, determining the stator voltage vector of the induction motor, forming a full-order flux observer having a system matrix (A) and a gain matrix (L), the state-variable observer being augmented with a speed adaptation loop, and producing an estimated rotor flux linkage vector and an estimated stator current vector, determining an estimation error of the stator current vector, defining a correction angle, and forming a speed adapt-tion law based on the cross product of the estimation error of the stator current vector and the estimated rotor flux linkage vector, where the correction angle is used to turn the rotor flux linkage vector or the estimation error of the stator current vector in order to keep the observer stable.

The invention relates to a three-in-one water quality risk early warning system of a water supply enterprise, which comprises an automatic monitoring system, a fish biological monitoring early warning system and a manual sampling assay monitoring system, wherein monitoring information of the three systems is collected into the same monitoring platform; video monitoring is performed on the fish biological monitoring early warning system; a video signal is transmitted to the monitoring platform; manual sampling assay monitoring data is timely transferred to the monitoring platform within the specified time via a computer; and omnibearing and stereoscopic monitoring and comprehensive early warning are performed on a water quality condition via comprehensive analysis of the monitoring information of the three systems. The water quality risk early warning system has the advantages that the defects that the traditional single system is low in early warning reliability and low in response speed are overcome by adopting the three-in-one water quality risk early warning system of water works; complete and quick early warning of a water quality risk of the water works can be achieved; the three systems perform comprehensive early warning; the reliability is very high; and the early warning response speed is highest.

The invention relates to a rotary-type self-latching safety braking device and a working method thereof. The rotary-type self-latching safety braking device comprises a rotating wheel, an axle, an axle base, a movable pin key and a pin key resetting device. An inner cylindrical surface of the rotating wheel, which is matched with the axle, is provided with a plurality of key slots. The axle is provided with a radial sliding chute which is internally provided with the movable pin key and the pin key resetting device. During the slow rotating process of the rotating wheel, the movable pin key makes slow radial reciprocating motion in the radial sliding chute of the axle correspondingly, and the axle can normally rotate; and when the rotation speed of the rotating wheel suddenly increases, the reciprocating motion of the movable pin key is damaged, one end of the movable pin key is propped into the key slot of the rotating wheel, and the rotating wheel is self-latching braked immediately. The invention has compact structure, simple construction, small volume, good sealing property, sensitive action, high reliability, short braking distance and safe use, and is applicable to the engineering fields such as building, machinery, metallurgy, mining, vehicles, vessels and the like. When in normal work, the rotary-type self-latching safety braking device slowly runs; and when in dangerous situations, the device fast runs, and the self-latching safety braking device in running is stopped immediately.

The invention provides an electric connection contact reliability detecting method. A plurality of battery cells are connected in series or parallel to form a battery pack, the electric connection contact reliability detecting method applied to the battery pack comprises the steps of: connecting an AC internal resistance tester to an electrically-connected node to be detected by adopting a wiring manner of a four-terminal testing method; setting measurement gears, a voltage measuring range and a resistance measuring range; acquiring measurement data; transmitting the acquired measurement data to an upper computer for processing; and judging whether a measured resistance value is within an acceptability limit by means of the upper computer, and indicating that a problem exists in the electric connection reliability if the measured resistance value exceeds the acceptability limit. The electric connection contact reliability detecting method adopts the AC internal resistance tester for measuring electric connection contact internal resistance, realizes fast detection of electrical connection parts of products, ensures the reliability and consistency of product quality, and quantifies the reliability of connection by means of numerical values.

The invention belongs to the technical field of electromechanical control in a high-pressure marine environment, and particularly relates to a position indicator for marine equipment. The position indicator comprises a power supply circuit, a water pressure switch, a single chip microcomputer, a GPS and iridium satellite positioning communication module, and an antenna, wherein the power supply circuit is connected with a battery, the water pressure switch, the single chip microcomputer, the GPS and iridium satellite positioning communication module and the antenna are connected in sequence, and the power supply circuit is connected with the single chip microcomputer and the GPS and iridium satellite positioning communication module. The position indicating method comprises the following steps: when a contact in a switching assembly of the water pressure switch is closed, the single chip microcomputer is brought into a working state, and the GPS and iridium satellite positioning communication module is started to work, and whether GPS information is effective or not is judged; if GPS position information deviates from the last position information by more than 10 meters, the GPS information is judged as effective, and the GPS position information is sent; and if the GPS position information does not deviate from the last position information by more than 10 meters, the GPS information is judged as ineffective, and the last detected position information is used as effective information of positioning and does not need to be resent. The position indicator is not in electrical connection with marine environment to which the position indicator is attached, so that interference to the marine equipment is avoided, and the influence of power failure of the main system of the marine equipment to the work of the position indicator system is avoided.

The invention relates to a liquid-state metal electromagnetic pump. Aiming at solving the problem that an existing electromagnetic pump cannot meet application requirements of a space nuclear power supply system, the invention provides a liquid-state metal electromagnetic pump for a space nuclear environment. The electromagnetic pump is composed of a pump groove assembly, an electromagnetic excitation structure assembly, a gas sealing shell assembly and a power transmission assembly. According to the liquid-state metal electromagnetic pump, an iron core structure has relatively good magnetism conducting efficiency and the weight and volume of the electromagnetic pump are easy to reduce; an annular flow channel of liquid-state metal can effectively improve the working efficiency of the electromagnetic pump; the electromagnetic pump is compact and firm in structure and can bear vibration and impacts from a launching phase to an orbit injection phase of a spacecraft; the gas sealing shell assembly and inert gas can provide effective protection for an electromagnetic excitation structure so that the service life is extremely prolonged and the reliability is extremely improved; and the electromagnetic pump adopts a relatively reasonable design structure so that the control of temperature distribution is facilitated and the electromagnetic pump can stably work for a long period in a vacuum environment.

The invention discloses a power generation system reliability rapid assessment method based on state clustering and belongs to the technical field of power system reliability assessment. Reliability assessment of a power generation system is carried out mainly through non-sequential Monte Carlo sampling and state clustering methods. Through the non-sequential Monte Carlo sampling method for sampling operation (failure) states of conventional power units of the system, and with the forced outage rate of the generator units being taken into consideration, the method not only replaces a conventional method for adding spare capacity to the system to ensure system reliability, but also establishes a system available generating capacity probability model with operation randomness and uncertainty of all units in the system being taken into full consideration; and by carrying out clustering on available generating capacity samples obtained through sampling to obtain a typical available generating capacity scene, workload of reliability calculation is reduced, reliability evaluation speed is allowed to be improved greatly, and the purpose of rapidly evaluating the reliability of the large-scale power system is achieved.

The invention relates to the field of testing, and discloses an automatic testing method which is applied to automatic testing equipment. The method comprises the following steps: acquiring a preset protocol format, a data protocol and a test configuration parameter; calculating a protocol format length, a data protocol length and a data packet length according to the protocol format and the dataprotocol; performing data packaging according to the protocol format length, the data protocol length and the data packet length to obtain a data packet; sending a data packet to a WIFI module througha serial port according to the test configuration parameter; obtaining a response data packet sent by the WIFI module; and determining a test result according to the sent data packet and the responsedata packet. Through the mode, a user can freely combine protocol formats according to requirements and customize data protocols, and the whole test process is full-automatic, so that the method hasvery high universality and can quickly test the communication stability and reliability.

The invention relates to a resistance simulation device based on a multiplying type digital-to-analog converter, which comprises a digital signal processor DSP, an isolator, a multiplying digital-to-analog converter, an inverter, a comparison unit, a PID unit, a limiting unit and a driving circuit, a power transistor, a sampling resistor, a differential amplifier, an amplifier, an attenuator, a follower, a digital ground, an analog ground and external test power supplies. The invention constructs a fast and high-resolution resistance value simulation system with a multiplicative digital-to-analog converter as the core, adopts a PID link to eliminate the error generated by the system, and increases the limiting circuit to prevent the power tube from entering a dead zone or an overload, thereby realizing an accurate resistance. The simulation has high resolution, wide range of analog resistance values, fast circuit response, stable circuit parameters, low price and high reliability. According to the invention, a fast and high-resolution resistance value simulation system is built by taking a multiplying digital-to-analog converter as a core, errors generated by the system are eliminated by adopting a PID link, the limiting circuit is added to prevent the power tube from entering a dead zone or an overload, the analog resistance value range is wide, the circuit reaction speed is fast, the circuit parameter is stable, the price is low, and the reliability is high.

The invention discloses a standard container-based rapid take-off booster device for an unmanned aerial vehicle cluster, and belongs to the take-off booster device on a aircraft take-off phase. The standard container-based rapid take-off booster device for the unmanned aerial vehicle cluster is applied to a large-scale fixed-wing unmanned aerial vehicle cluster maneuvers and rapid takes-off in cooperative operation under the limited environment conditions. The standard container-based rapid take-off booster device for the unmanned aerial vehicle cluster comprises a standardized container (1),an unmanned aerial vehicle (2), a storage rack (3) used for storing the unmanned aerial vehicle, a linear motor (5) used for launching the unmanned aerial vehicle, a mobile high energy density energystorage unit (6), a motor drive device (7) and a console (8). The standard container-based rapid take-off booster device for the unmanned aerial vehicle cluster realizes the integration of storage, transportation and launch of the unmanned aerial vehicle, the unmanned aerial vehicle can quickly reach a working area by means of vehicles in a maneuver mode, ships and other carrier tools, realize therapid continuous launching of the unmanned aerial vehicle, the cluster is formed rapidly, and cooperative operation tasks are rapidly carried out.

The invention discloses a vehicle storage battery safety device, comprising a rigid shell and an outage mechanism arranged in the shell; the outage mechanism comprises an electromagnetic coil capable of connecting with a vehicle safety airbag control unit, a static contact and a moving contact; the static contact is arranged at one end of a fixing post; the moving contact is arranged at the opposite end of a moving post of which the other end is glidingly arranged in a center hole of an opening iron core of the electromagnetic coil; a round armature plate is arranged in the middle of the moving post; an elastic check bowl is arranged in the middle of the shell and is provided with elastic fingers in annular distribution and inclined to one side of the electromagnetic coil; the dangling end of each elastic finger forms an armature hole of which the diameter is smaller than the armature plate. The vehicle storage battery safety device effectively solves the problems of low reliability and slow reaction speed of a vehicle collision outage protection device in the prior art, and the vehicle storage battery safety device is simple in structure, high in reliability, fast in action speed and has very high practical value.

The invention relates to a semiconductor refrigeration dryer which is used for micro flow below 0.7m<3>/min, is small in the appearance size, simple in the structure and convenient to operate as well as a refrigeration drying method. The semiconductor refrigeration dryer comprises an alternative-current direct-current electrical appliance controller. A refrigeration surface of the semiconductor refrigerator is connected with an outer wall surface of an aluminum alloy air cavity; the radiation surface of an aluminum alloy radiating fin is connected with a radiation surface of the semiconductorrefrigerator; the inside of the whole aluminum alloy air cavity is cooled down by means of heating emission of a metal conductor; and the flowing air inside the air cavity is cooled down so that water in the air is separated through condensation and is discharged through an automatic drainer communicated with the lower end of the aluminum alloy air cavity. The invention has the advantages of supplement of application blank of micro flow below 0.7m<3>/min, small volume, simple structure, convenient operation, remarkable energy-saving effect, environmental protection, energy saving, low carbon,no noise of the whole machine, no moving member, high reliability, rapid start speed, flexible control and very accurate control of air outlet dew point.

The invention relates to a quick vacuum circuit breaker. The quick vacuum circuit breaker is characterized in that the tail end of a movable conducting rod is connected with one end of an insulator (2), the other end of the insulator (2) is connected with one side of an opening coil (3) by a connecting rod, the other side of the opening coil (3) is connected with one side of a closing coil (5) by a connecting rod, the other end of the closing coil (5) is connected with a disc spring by a connecting rod, and an eddy current disc (4) is further mounted on the connecting rod between the opening coil (3) and the closing coil (5); a second wiring terminal of the opening coil (3) and a second wiring terminal of the closing coil (5) are respectively connected with two output ends of a selector control switch (K), and the quick vacuum circuit breaker further comprises a first energy storage capacitor (C1) and a second energy storage capacitor (C2) which are serially connected with each other. The quick vacuum circuit breaker has the advantages that the closing time can be about 12ms, and the opening time can be within a range of 5ms under the control.

The invention discloses a multiferroic liquid. The multiferroic liquid is a stable suspension liquid obtained by uniform dispersion of multiferroic nano-particles in a uniform mixed solution of a base liquid and a surfactant. The preparation method of the multiferroic liquid comprises pouring dry multiferroic nano-particles into a mixed solution of a base liquid and a surfactant in a container, sealing the container, putting the sealed container into a shaking table and carrying out shaking to obtain a stable multiferroic liquid. Compared with the solid multiferroic material, the multiferroic liquid has ferroelectricity, magnetism, fluidity, unique magneto-optic effect and optical direfringence effect, electric field (magnetic field) sensibility, and strong magnetoelectric effect. Through application of a small electric field (magnetic field), ferroelectricity and magnetism of the multiferroic liquid can be adjusted and controlled. Multiferroic nano-particles of the multiferroic liquid can easily rotate in the electric field (magnetic field) so that an electric domain direction is completely along an electric field direction. The multiferroic liquid provides a novel research direction of a multiferroic material and has a good application prospect.

The invention predicts premature dielectric breakdown in a semiconductor. At least one dielectric breakdown mode is calculated for the semiconductor wafer. If a one mode is calculated, premature dielectric breakdown will be associated with any semiconductor with a breakdown voltage less than a predetermined standard deviation of a plurality of breakdown voltages within said calculated mode. If multiple modes are calculated, the mode that most accurately represents dielectric breakdown for the semiconductor wafer is determined and premature dielectric breakdown will be associated with any semiconductor with a breakdown voltage less than a predetermined standard of the calculated mode that most accurately represents dielectric breakdown for the semiconductor wafer.

The invention discloses a proportional electromagnetic electronic throttle controlling method. An electronic throttle controller is used for controlling the movement of the throttle drawbar on the jet pump by proportional electromagnet, i.e. the signal of a throttle pedal sensor is input into the electronic throttle controller to be processed and the processed signal is output to the proportional electromagnet to drive the axial movement of the proportional electromagnet, so the throttle drawbar of the jet pump is powered by the proportional electromagnet to control the amount of the fuel in the jet pump. In the proportional electromagnet for controlling the throttle drawbar a spring or a torsional spring is set, so as to make the running more reliable.