276 results about "Point change" patented technology

The invention discloses a resonant tracking non-contact power supply device and a resonant tracking non-contact power supply method and aims to mainly solve the problems that the transmission efficiency and transmission distance are reduced and induction voltage is sensitive to load change caused by the change of a resonant point in an LC resonant non-contact power supply. An excitation source with adjustable frequency and amplitude is formed through an adjustable switch power source (102) and a half-bridge switch (103) and is applied to a resonant circuit consisting of an emitting coil (112) and a resonant capacitor (113); a current signal in the resonant circuit is acquired by using a current sampler (104); an automatic resonant frequency tracking circuit consists of a comparator (105), a phase discriminator (106) and a controllable oscillator (107); when the resonant point changes, an excitation frequency is automatically adjusted and an automatic excitation voltage adjusting circuit consists of a wave detecting and filtering circuit (109), an error amplifier (110) and the adjustable switch power source (102) to automatically adjust the excitation voltage when a load changes, so a load voltage is basically constant. The resonant tracking non-contact power supply device can overcome the effects caused by resonant frequency change and load change and is applicable for the occasion of close-range and high-efficiency non-contact power transmission.

A control apparatus for a vehicular power transmitting system including (a) an electrically controlled differential portion having a differential mechanism disposed between an engine and a vehicle drive wheel, and a differential-portion electric motor operatively connected to the differential mechanism such that a differential state of the differential mechanism is controllable by controlling an operating sate of the electric motor, and (b) a transmission portion constituting a part of a power transmitting path, the control apparatus including a shifting-point changing portion configured to change a shifting point at which a determination to perform a shifting action of the transmission portion is made, such that the shifting point is changed according to a shifting response of the transmission portion. Alternatively, the control apparatus includes a shift-control start-point changing portion configured to change a shift-control start point at which the determination to perform the shifting action is made, such that the shift-control start point is changed according to the shifting response of the transmission portion, and a compulsory shift-control starting portion configured to make the determination when an operating point of the differential-portion electric motor has reached the shift-control start point.

A method of matching the power of a photovoltaic system producing electric energy by which a working point at which the system produces maximum power is set by changing the working point in an MPP matching process and by comparing the system power, which changes as a result thereof, is intended to be suited both for stationary characteristic curves and for non stationary generator characteristic curves and to be easy to carry out so that the best working point is always set, even when the system is subjected to external interfering factors. This is achieved in that one or several additional control steps or control cycles are performed in order to track during the matching process a power point changing under external impact for a working point of even higher power to be set.

An access point establishing a wireless LAN is constructed to have a monitor system ‘b’ for monitoring an available channel for communication, in addition to a communication system ‘a’. In the event of detection of radar/radio signals, the access point changes a communication channel used for wireless communication from a current active channel to the monitored channel. Each terminal belonging to the wireless LAN recognizes and follows this channel change by detection of a beacon broadcasted by the access point. In the case of non-detection of radar/radio signals for one minute at the monitored channel, the wireless communication is reestablished immediately at the monitored channel recognized as a CAC (channel availability check)-finished channel. This series of processing is also applicable to inter-access point communication, for example, communication in a WDS (wireless distribution system) mode. This arrangement desirably prevents the potential interruption of wireless communication in a 5 GHz frequency band for a significant period, in the event of detection of radar/radio signals, for example, a weather radar.

The invention discloses an industrial procedure for identifying preferential seepage channels of oil and gas reservoirs of clastic rock. The industrial procedure includes steps of 1), dividing n development phases and dividing wells into n groups according to the development phases of well drilling time; 2), dividing data grids of research areas; 3), interpolating permeability parameters of well points of the well groups 1 to obtain permeability planar distribution grids of the development phases 1; 4), sequentially acquiring permeability planar distribution grids R<1>, R<2>, ..., and R<n> of the n development phases by the aid of a method implemented in the step 3); 5), computing a variation coefficient of a permeability value of each grid point by the aid of results obtained in the step 4) so as to obtain variation coefficient grids P; 6), subtracting the R<1> from the R<n>, assigning values of 1 to the grid points with positive difference values and assigning values of -1 to the grid points with negative difference values to obtain grids T; 7), multiplying the grids P by the grids T to obtain grids Q, drawing contour maps of the grids Q, and utilizing regions larger than 0.3 in the contour maps as the preferential seepage channels. The variation coefficients of the permeability values of the grid points change along with change of the development phases. The industrial procedure has the advantage that oilfield water-flooding development and remaining oil prediction can be guided.

The invention provides an automobile suspension parameterization design method. A hard point meter is used for driving point and line models of all components of a suspension, the point and line models of the components are used for building a point and line DMU (diesel multiple unit) model of the suspension, the point and line DMU module drives the suspension components to move, the DMU model of a suspension system is formed, and then, the DMU model of the suspension system is subjected to movement checking. When the method is implemented, the components, the MDU model, detail digital analog data of each component and the like are automatically changed during the suspension hard point change. The remodeling is not needed, the development period of a suspension product is greatly shortened, different automobile types can share the DMU model, the work efficiency can be greatly improved, and the development time can be shortened.

The invention discloses a display device based on a phase-change material. The display device comprises a series of pixel points, and each pixel point comprises a reflecting layer deposited on a substrate, an isolating layer deposited on the reflecting layer, a solid-state phase-change layer deposited on the isolating layer and a covering layer deposited on the solid-state phase-change layer; the reflecting layers have the reflectivity of 80% or above in the visible light range and are used for supplying back reflection; the isolating layers are used for adjusting the reflectivity of the whole device; the solid-state phase-change layers can be reversibly transformed between a crystalline state and a noncrystalline state under driving of voltage or lasers to cause changes of the reflectivity of the phase-change materials, so that the colors of all the pixel points change; the covering layers are used for receiving the externally-exerted voltage. A large number of the pixel points can be stacked to form a display array through the spatial structure.

The invention provides an environmental data multi-point real-time collecting system. The environmental data multi-point real-time collecting system comprises an upper computer and one or more lower computers distributed in different areas. Each lower computer comprises a micro control unit and multiple sensors arranged at different monitoring points in the corresponding areas, wherein the sensors are used for collecting the environmental data of the monitoring points, and the micro control unit is used for obtaining the environmental data of the monitoring points in real time. Whether the current environmental data, obtained in real time, of each monitoring point change seriously is judged, and the current environmental data and the identity information of the corresponding monitoring point are transmitted to the upper computer when serious changes happen. The upper computer is used for receiving the current environmental data and the identity information of the corresponding monitoring point transmitted by each lower computer in real time, and for any monitoring point, if the upper computer does not receiving the new data of the monitoring point, it can be confirmed that the current environmental data of the monitoring point are consistent with the data received last time. The environmental data multi-point real-time collecting system can improve the real-time performance of summarization and tracking of the environmental data with low expenses.

In a system, a detection module periodically detects position information of a reflection point of a received back wave. A sampling module periodically samples a first reflection point and a second reflection point for the detected reflection points of the each period. The first and second reflection points are expected to be reflection points of first and second reflection parts of a moving object in front of the system. A first determination module determines whether a distance between the first reflection point and the second reflection point changes along with time. In the case of determining that the distance between the first reflection point and the second reflection point does not change along with time, a second determination module determines the reflection points of the first and second reflection parts of the single moving object corresponding to the first and second reflection points.

A program changing device includes a sequence interchanging unit for interchanging plural teaching points in a teaching sequence such that total movement time of a robot becomes smaller than that when the robot is moved in line with an initial teaching sequence of the teaching points, a calculating unit for calculating difference amounts between the initial teaching points and a trajectory of the robot that is obtained by executing an after-interchanged operational program by simulation, a position adjusting unit for adjusting positions of the teaching points of the after-interchanged operational program until the difference amounts become equal to or smaller than a predetermined allowable value, and a teaching point changing unit for changing the adjusted teaching points to be the initial teaching points when cycle time of the after-interchanged operational program including the adjusted teaching points is longer than initial cycle time.

The invention provides an abnormal behavior detection method and an abnormal behavior detection device based fused characteristics. The method comprises steps that, according to a detection tracking processing result of a motion target in a to-be-detected video, a behavior type of the motion target is determined; multi-dimensional characteristics of the motion target are extracted, including a pixel point change degree, a pixel point arrangement tightness degree, an integral shape, a frame image similarity degree, motion characteristics, position characteristics and form characteristics; the multi-dimensional characteristics are analyzed and processed according to a characteristic fusion model corresponding to the behavior type, whether the motion target has abnormal behaviors is determined according to the processing result; according to innovative characteristics of the multiple abnormal behaviors, algorithm robustness and stability can be effectively improved, according to the characteristic fusion model acquired through learning and training large-scale abnormal behaviors, the multi-dimensional characteristics are analyzed and processed, problems of algorithm overfitting and insufficient fitting can be effectively avoided, the method is suitable for multiple types of complex application scenes, time cost and manpower cost are greatly saved, and the method has high popularization values.

A mistaken touch prevention method for a touch screen comprises the following steps: (1) forming a mistaken touch area on the touch screen; (2) detecting touch point changes once happening on the touch screen; (3) determining whether touch points are mistaken touch points or not according to the size and the position of the mistaken touch area and the position of the touch points; (4) adjusting the position of the mistaken touch area along with the positions of all of the mistaken touch points; and (5) isolating touch of all of the mistaken touch points. The mistaken touch area can be realized by virtue of software or hardware, and a mistaken touch prevention area in the method can move according to the movement of a palm, namely the movement of the mistaken touch points, and therefore, the mistaken touch points generated by a human hand can be isolated reliably by virtue of automatic adaptation.

A middle layer network protocol enhancement, virtual connectivity (VC) makes the network attachment point changes of local and remote peers transparent to applications that use network services. A virtual connectivity module local to each peer translates communication connection parameters from apparent to real and vice versa, as well as sending and receiving secure connection updates directly to and from peers. Unlike Mobile IP, no routing infrastructure modifications are required. A subscribe-notify service provides connection update notifications when direct peer-to-peer connection updates are not possible, for example, when two communicating peers move simultaneously or when the moving peer is communicating with a peer behind network address translation (NAT). Methods for detecting these conditions are disclosed, as is a virtual connectivity protocol and virtual connectivity module architecture.

The invention provides a phased array radar electronic control wave beam stabilizing method. The problem of the influence of antenna beam pointing changes caused by carrier disturbance on target detection and tracking is solved. The phased array radar electronic control wave beam stabilizing method comprises: step one, performing initialization, powering on a phased array radar and initializing parameters of a beam stabilizing module; step two, utilizing a previous moment quaternion and an angular velocity measurement value within an existing time interval to calculate antenna relative gestures through a numerical integration method; step three, obtaining a beam offset angle for keeping beam stability according to the antenna relative gestures obtained the previous step and a previous moment target tracking vector and through coordinates transformation backstepping; step four, obtaining a target measurement value; and step five, utilizing the beam offset angle obtained through calculation, a target azimuth error angle and a pitching error angle to jointly achieve beam control, updating the target tracking vector and the quaternion for arithmetic iteration, accordingly offsetting the influence of carrier disturbance within the existing time interval and keeping a beam to always right face a target.

A middle layer network protocol enhancement, virtual connectivity (VC) makes the network attachment point changes of local and remote peers transparent to applications that use network services. A virtual connectivity module local to each peer translates communication connection parameters from apparent to real and vice versa, as well as sending and receiving secure connection updates directly to and from peers. Unlike Mobile IP, no routing infrastructure modifications are required. A subscribe-notify service provides connection update notifications when direct peer-to-peer connection updates are not possible, for example, when two communicating peers move simultaneously or when the moving peer is communicating with a peer behind network address translation (NAT). Methods for detecting these conditions are disclosed, as is a virtual connectivity protocol and virtual connectivity module architecture.

The invention provides a thermal deformation testing system of a high-precision star sensor support. The thermal deformation testing system comprises a temperature control system and a thermal deformation measuring system, wherein the temperature control system comprises a temperature loading system and a temperature measuring system and is used for accurately simulating a star sensor support in-orbit temperature field through feedback control of temperature loading load. The thermal deformation measuring system adopts an angle measuring system based on a photoelectric auto-collimator and usedfor measuring an optical axial vector of a star sensor standard prism under the specified measurement conditions, utilizing the optical axis of the standard prism to represent a pointing angle of thestar sensor, obtains the pointing change situation of the star sensor through data analyzing treatment and verifies the rationality of thermal stability design of the star sensor support. The high-precision thermal deformation ground verification test demand for arc-second-level pointing change of a satellite star sensor due to thermal deformation of the support is met by adopting the system.

The invention relates to a method for determining a bite point change of a hybrid separating clutch of a hybrid vehicle. Said hybrid separating clutch (4) disconnects or connects an internal combustion engine (2) and an electric traction drive (3), and the torque (M) supplied by the internal combustion engine (2) and/or the electric drive (3) is conveyed further to the drive wheels (10) of the hybrid vehicle. Said hybrid separating clutch (4) for determining the bite point (TP) moves from an open state into a closed state and a speed gradient (Ga, Gb, Gc) of the internal combustion engine (2) is determined. According to the invention, a very simple adaption of the bite point of the hybrid separating clutch is possible. Said hybrid separating clutch (4) is moved during the operation of the internal combustion engine (2) with constant torque (M) of said internal combustion engine, until a predetermined torque is transmitted by the hybrid separating clutch (4) and the bite point (TP) is corrected in accordance with the speed gradients (Ga, Gb, Gc) of the internal combustion engine (2).

The invention relates to a video speed measuring method based on feature point change. The video speed measuring method based on the feature point change is characterized by comprising the steps that a video probe is used for shooting continuous photos of a certain road at fixed time intervals or continuously shooting videos of the certain road, when a moving object enters a scene shot by the video probe, features of the moving object are extracted, and the speed of the moving object is calculated through displacement amount change of steps. According to the video speed measuring method based on the feature point change, an existing video probe is used for collecting continuous photos or video streaming, length calculation is conducted to pixel changing amount of feature points in the continuous photos or the video streaming, the speed of a measured object can be obtained by the fact that time difference is further divided, the addition of additional equipment is needless, a system is simple, and cost is low.

The invention relates to a frequency compensating device, in particular to a current model frequency compensating device of a DC-DC (direct current-direct current) converter. The device is characterized by comprising an error amplifier and a frequency compensating circuit connected in sequence. The device disclosed by the invention has the following advantages that: 1, the instant response of a frequency compensating system is accelerated, a compensating capacitor can be directly integrated in a chip, thus, the area of the overall circuit is saved; 2, a dynamic zero point changed with the change of the loaded current can be generated to counteract the pole omega 1; and 3, the error amplifier adopts a foldable common source common grid structure, thus, a high DC gain and a large output resistance can be provided, and a low frequency domain pole can be produced only at the output end of an operational amplifier.

A measuring instrument for a wafer for measuring the thickness of a wafer held on a chuck table using a laser beam includes a condenser for condensing and irradiating the laser beam on the wafer held on the chuck table, a light reception unit for receiving reflected light of the laser beam irradiated upon the wafer, a convergence light point changing unit for changing the convergence light point of the laser beam, and a control unit for measuring the thickness of the wafer based on a change signal from the convergence light point changing unit and a light reception signal from the light reception unit. The control unit stores a thickness control map. The control unit controls an angle adjustment actuator, provided for adjusting the installation angle of a pair of mirrors, to change the installation angle and detects two peaks of the light amount based on the reception signal from the light reception unit.

The invention relates to a hydraulic mem-inerter device and an application thereof. The hydraulic mem-inerter device comprises a first cylinder barrel, a first piston and a spiral passage, wherein the first cylinder barrel is divided by the first piston into a left cavity and a right cavity; and the spiral passage enables the left cavity and the right cavity of the first cylinder to communicate, and the length of the spiral passage changes along with the change of the relative displacement of the first cylinder barrel and the first piston. The cylinder barrel and the piston serve as a first end point and a second end point which are independent and movable correspondingly. When used, the hydraulic mem-inerter device can be connected to a system to control mechanical force. When generating relative movement between the two end points, fluid can flow from one cavity to the other cavity of the cylinder barrel through the spiral passage, the fluid in the spiral passage has mass and can generate inertia force when flowing, and the ratio of the generated inertia force to the relative acceleration of the two end points changes along with the change of the relative displacement of the two end points. The hydraulic mem-inerter device can serve as a regulation and control valve for an inerter and a damper, can realize continuous regulation and control on the inerter and the damper, and has a wide application range.

The invention discloses a time-based automatic shifting law formulation method. The method comprises the following steps: on the basis of a control system of a dual-clutch-transmission (DCT), storing the method in a transmission control unit (TCU) of the control system in a program manner; comparing the relationship between acceleration time t and setting time t0 in the TCU in real time according to target shifting velocity V, current running velocity V1 and acceleration a; and when t is more than t0, continuously detecting, and then shifting a target gear via a synchronizer when t is equal to t0 to achieve the purpose of previously shifting the target gear. In the method, shifting velocity points change with change of the acceleration, thereby avoiding defects of circular shifting and influence on shifting time.