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125 results about "Variable interval" patented technology

Interval Schedule. Interval schedules require a minimum amount of time that must pass between successive reinforced responses (e.g. 5 minutes). Responses which are made before this time has elapsed are not reinforced.

Intelligent monitoring and identification method for vehicles exhausting black smoke based on image processing technology

The invention discloses an intelligent monitoring and identification method for vehicles exhausting black smoke based on an image processing technology. The method comprises the following steps: S1, using a video capture card to collect a high-definition real-time video data stream of a traffic checkpoint; adjusting the time of interval sampling according to the degree of pavement change by use of a variable-interval background mean sampling technology, and extracting payment background information by use of a multi-frame image mean algorithm; S3, according to the collected video stream, removing small vehicles and non-motorized vehicles from each frame of image in real time by use of a small vehicle filtering algorithm, so as to reduce the amount of data of image processing and improve the efficiency of the algorithm; S4, positioning tail flue gas of large vehicles in each frame of image; and S5, comparing the data of a positioning area image and the data of a background area image of exhaust gas emission to judge whether the vehicles are vehicles exhausting black smoke. The intelligent monitoring and identification method for vehicles exhausting black smoke disclosed by the invention can improve the detection efficiency. Whether a vehicle exhausts black smoke is judged by use of the computer technology.
Owner:XIANGTAN UNIV

BRT (bus rapid transit) combined dispatching method capable of achieving variable bus departure intervals

ActiveCN105448082ASolve the problem of concentrationAvoid \"cross-traffic\"Road vehicles traffic controlSeating capacityStop time
The invention belongs to the technical field of public transport dispatching and optimization, and especially relates to a BRT (bus rapid transit) combined dispatching method capable of achieving variable bus departure intervals. The method comprises the steps: determining the total number of stops and the total number of bus departure times, and obtaining the driving time of vehicles among stops, passenger flow information, the get-on time of passengers, the get-off time of passengers, and stopping time of vehicles; obtaining the number of get-on and get-off passengers at each stop, so as to determine the type of the stop as a BRT stop or common stop; taking a combination mode and a departure interval as decision variables; building a bus dispatching model, calculating the stop time and the number of get-on and get-off passengers of each vehicle at each stop, solving a target function expression, i.e., calculating the mean waiting time of passengers, the mean on-bus time of passengers, and the mean seating capacity of the vehicles; solving and obtaining a dispatching scheme through employing a particle swarm optimization algorithm, wherein the mean waiting time of passengers and the mean on-bus time of passengers are as short as possible in the scheme, the mean seating capacity of the vehicles are as large as possible in the scheme, and the scheme comprises a departure interval and a departure type.
Owner:TSINGHUA UNIV

Method and apparatus for printing on rigid panels and other contoured or textured surfaces

Ink jet printing is provided onto rigid panels (15) such as office clapboard which may have contoured, textured surface (16) made from three-dimensional material, or other surfaces having variable interval from rigid panels, the distance between printing elements (30, 130, 130a-130d) and position which surface will printing on thereof is not alaways or exactly predicted. Panels (15) are printed using ultraviolet light curable ink, first at least part of ink are cured by UV light, and maybe more completely cure and dry the ink to remove by using heating step, thereby removing uncured monomer through evaporating, furtherly curing or other maners. The surface (16) of rigid panels have contoured shape via sewing or moulding technics. Printhead to panel spacing is adjustable to maintain a predetermined constant distance from the printing element to the surface of the panel. Each of printheads (130a-130d) independently moveable to control the spacing of the printheads from the substrate. Sensors (40, 138) set on printhead carriage (129) measure the distance from the printhead to the surface of the substrate. Positions or focus of UV curing heads (23, 123) are variable to keep UV light focus on ink on contoured surface of substrate. UV curing heads may be located on the printhead carriage, every side of printhead has a light curing head, so that alternating work when the carriage reciprocating, spot curing and coagulating ink points immediately after ink deposited on the substrate. Cold UV sources may be used to prevent heat deformation of flat or contoured substrates, thereby making spot curing on heat-sensitive substrates.
Owner:L & P PROPERTY MANAGEMENT CO

Variable-interval self-adaptive measuring point-searching aircraft panel normal vector determination method

InactiveCN102607484AImprove the accuracy of normal vector solutionGuarantee processing qualityMeasurement devicesMeasurement pointMathematical model
The invention provides a variable-interval self-adaptive measuring point-searching aircraft panel normal vector determination method, which can utilize the equicurvature integration method to self-adaptively search measuring points and interpolate two cubic B-spline curves on the measuring points according to the theoretical mathematical model of a panel, so as to determine the normal vector of the curved surface. Compared with the conventional method, the method utilizes the beneficial mathematical parameters provided by the theoretical mathematical model of the curved surface of the panel and adopts the equicurvature integration method to search the measuring points, thus ensuring that the density of the measuring points can be increased or decreased as the curvature of the curve is increased or decreased, the precision of solving the normal vector of the curved surface of the panel is increased by optimizing the distribution of the positions of the measuring points, the solution result can be used for guiding automatic drilling and riveting equipment to drill and rivet the panel, can be used in the analysis and estimation of panel deformation, and as a basis for the detection of the shape of the panel, the method is significant for the guarantee of aircraft panel-machining quality.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Method and architectural structure for planting virescence on rock mountain body

The invention relates to a method and an architectural structure for planting virescence on a rock mountain body. The method for planting virescence on the rock mountain body is characterized by comprising the following steps of: (1) drilling blind holes according to the set specification and interval on the slope of a rock mountain body, inserting reinforcing steel bars into the blind holes, fixing the reinforcing steel bars into the blind holes and solidifying with the rock mountain body by cement or concrete; (2) taking the reinforcing steel bar extending out of the slope of the rock mountain body as a support, and constructing bags on the slope of the rock mountain body by the concrete; (3) filling planting soil into the bags, and planting plants in the planting soil; (4) overlaying a water pipe from top to bottom along the slope of the rock mountain body, arranging water injection nozzles on the water pipe, which are positioned on the bags, and enabling the water injection nozzles to be positioned above the bags; (5) continuously watering the plants in fixed time or at an variable interval to provide water required by plant growth so as to ensure the normal growth of the plant. According to the invention, an anchor rod is arranged on the slope of the rock mountain body to form a connection structure by taking the reinforcing steel bars as the support; the bags are evenly constructed from top to bottom on the slope of the rock mountain body by concrete, soil is filled into the bags, and plants are planted; therefore, multi-layer ecological composite virescence is formed on the slope; the purposes of slope protection, virescence and ecological environment protection are achieved.
Owner:广州市设计院集团有限公司

Three-axis micro-gyroscope based on tuning fork driving effect

The invention discloses a three-axis micro-gyroscope based on a tuning fork driving effect, which comprise an upper-layer gyroscope structure and a lower-layer glass substrate, the upper-layer gyroscope structure comprises a left mechanical structure, a right mechanical structure, a middle mechanical structure, an upper crossbeam, a lower crossbeam, short beams, and anchor points, a turning mechanism based on tuning fork driving is designed in the middle mechanical structure, X-axis simple harmonic driving and Y-axis simple harmonic driving of sensitive weights of the middle mechanical structure are realized by the X-axis unidirectional driving of the left mechanical structure and the right mechanical structure, and thereby the consistency of driving frequencies between different axes is ensured. When angular velocity is inputted from outside, the sensitive weights receives Coriolis force to shift. By adopting a double-sensitive weight design and variable-interval capacitance differential detection, the three-axis micro-gyroscope can inhibit the common-mode interference of temperature, structural stress, acceleration and the like; the structure of the three-axis micro-gyroscope issymmetrically arranged, the stability is good, and the anti-interference capability is high.
Owner:SOUTHEAST UNIV

Non-contact attendance information system based on Zigbee technology

The invention discloses a non-contact attendance information system based on a Zigbee technology, comprising a central management computer, a plurality of reader-writers and a plurality of electronic identification cards, wherein the central management computer is in communication connection with the reader-writers through a serial port; the reader-writers are connected with the electronic identification cards through the Zigbee technology; when the electronic identification cards are located in the communication range of some reader-writer, the short-distance wireless communication between the electronic identification cards and the reader-writers is realized through the Zigbee technology; and a reader can be communicated with the plurality of electronic identification cards at the same time. The electronic identification cards have the function of identifying fingerprints, in order to avoid checkingattendance for a person. The system provided by the invention can realize the functions of inspecting the duty at variable intervals, sending notices and tracing temporary visitors, and provide the functions of alarming attendance failure and inquiring attendance information. The system provided by the invention adequately utilizes the low power comsumption characteristic of the Zigbee technology and combines the radio frequency identification technology to realize attendances of multiple users at the same time and thus effectively improves the attendance efficiency and intelligent management level.
Owner:JIANGSU UNIV OF SCI & TECH

Method and apparatus for controlling a variable optical attenuator in an optical network

This invention describes a method for controlling attenuation for a variable optical attenuator (VOA) inserted in an optical path of an optical signal propagating in an optical network, comprising the steps of measuring power of the optical signal at the VOA; comparing the measured power with a target power; and if the measured power differs from the target power, changing the attenuation of the VOA in one or more variable size intervals (VSI) so that the power of the optical signal substantially equals to the target power, wherein the VSI being a function of the measured power and target power. The method further comprises the step of comparing the measured power with a Loss-of-signal (LOS) power threshold, and if the measured power is less than the LOS power threshold, changing the attenuation of the VOA in one or more variable size intervals so that the power of the optical signal substantially higher than the LOS power threshold, wherein the size of the variable interval being a function of the measured power and the LOS power threshold. The method dynamically computes a VSI, updates the VOA setting by said VSI, and manages a combination of open and closed VOA control loops to maintain the target power attenuation of the VOA The corresponding apparatus for controlling the VOA is also provided.
Owner:WSOU INVESTMENTS LLC +2

Double-laser cleaning device and method thereof

ActiveCN109719086AAvoid ablationPrecise control of laser cleaning effectCleaning using gasesPrismOptoelectronics
The invention provides a double-laser cleaning device. The double-laser cleaning device comprises a double-laser-beam dynamic combination device, wherein two laser beams are input into the double-laser-beam dynamic combination device, and the double-laser-beam dynamic combination device is used for outputting variable-interval parallel lasers which are emitted into the surface of a workpiece. Thetwo laser beams are emitted into a prism reflector through a first reflector and a second reflector, and the parallel lasers with variable intervals are output through the prism reflector in a translation mode. According to the double-laser cleaning device, the complex to-be-removed object on the surface of a substrate is efficiently removed through the two laser beams with different pulse widths,the first laser beam is used for cleaning most of the surface to-be-removed objects by using the long pulse width laser parameters, the second laser beam is used for using the short pulse width laserparameters, and the residual object to be removed is completely cleaned by utilizing the heat accumulation of the first laser beam, so that the laser cleaning efficiency is greatly improved, the energy is saved, the surface of the ablated substrate is effectively prevented from being ablated, and the surface quality of the substrate after laser cleaning is remarkably improved.
Owner:JIANGSU UNIV

Electro-thermal-driven micro-electro-mechanical comb tooth mechanism for regulating variable intervals of teeth

InactiveCN102951593AAchieving AMIncrease the sensor detection signal amplitudePiezoelectric/electrostrictive devicesFlexible microstructural devicesElectrothermal actuatorRight shift
The invention discloses an electro-thermal-driven micro-electro-mechanical comb tooth mechanism for regulating variable intervals of teeth. The electro-thermal-driven micro-electro-mechanical comb tooth mechanism comprises a left-shift electrothermal actuator, a right-shift electrothermal actuator, a fixed tooth, a moving tooth, four first anchor regions and an insulating substrate, wherein the fixed tooth consists of a left-shift fixed tooth and a right-shift fixed tooth; the left-shift electrothermal actuator is connected with one end of the left-shift fixed tooth, and the two ends of the left-shift fixed tooth are respectively connected to the first anchor regions; the right-shift electrothermal actuator is connected with one end of the right-shift fixed tooth, and the two ends of the right-shift fixed tooth are respectively connected to the first anchor regions; the left-shift fixed tooth comprises a first wide beam, a left-shift comb tooth and four first folding beams; the right-shift fixed tooth comprises a first wide beam, a right-shift comb tooth and four second folding beams; the moving tooth comprises a quality block, a moving tooth comb tooth, two second anchor regions and two third folding beams; and a left-shift stop block is arranged on the first wide beam, and a right-shift stop block is arranged on the second wide beam. Under the driving of an electrothermal driving force, the micro-electro-mechanical comb tooth mechanism regulates the intervals of the teeth to enable a signal generated by micro-electro-mechanical vibration to be strong.
Owner:SOUTHEAST UNIV
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