98 results about "Synchronous switching" patented technology

The invention discloses an OEO amplifier with a high-speed hard switching function and an optical transmission system, and relates to the technical field of optical amplifiers, the OEO amplifier comprises three magneto-optical switches, an optical splitter group, a photoelectric detector group, a real-time comparison circuit, a logic gate control circuit and a driving circuit; the photoelectric detector group collects optical signal power to generate an electric signal; the real-time comparison circuit performs voltage threshold judgment on the electric signal; the logic gate control circuit is connected with the output end of the real-time comparison circuit so as to synchronously control the switching states of the three magneto-optical switches according to a voltage threshold judgment result; the driving circuit is used for driving the magneto-optical switch to synchronously execute a switching action; when the OEO amplifier detects that optical signals in any direction are interrupted, all the magneto-optical switches finish synchronous switching within 100 microseconds, and the end-to-end optical signal switching time difference is smaller than 2 picoseconds. The method is suitable for a single-fiber bidirectional optical communication environment requiring high frequency, high precision and high stability.

The utility model provides a kind of foaming forming die die changing cooperation mechanism, including die changing device, foaming mould box and mould box clamp, mould box clamp includes upper clamp and lower clamp, foaming mould box includes upper die and lower die, first lock pin connecting mechanism and second lock pin connecting mechanism are respectively equipped between upper clamp and upper die and between lower clamp and lower die, die changing device includes device frame, device frame is also equipped with die changing assembly, first lock pin connecting mechanism and second lock pin connecting mechanism both have locking connection state and unlocking separation state, when being in locking connection state, upper clamp and upper die, lower clamp and lower die are connected as a whole, when being in unlocking separation state, upper clamp and upper die, lower clamp and lower die are disconnected, die changing assembly can drive first lock pin connecting mechanism and second lock pin connecting mechanism synchronous switching between locking connection state and unlocking separation state. The utility model can save artificial cost, improve die changing efficiency.

The application relates to the technical field of ring network boxes, and discloses a one-two fusion convenient maintenance ring network box, which comprises a box body and a plurality of electrical elements arranged in the box body, the box body comprises a top plate, side plates and a bottom plate, a plurality of heat dissipation holes for heat dissipation are formed in the side plates, a switching-on and switching-off knife is arranged on the electrical elements, a connecting groove is formed in the switching-on and switching-off knife, a magnetic block is arranged on the groove wall of the connecting groove, a driving rod is further connected to the switching-on and switching-off knife, a plurality of trigger rods are arranged on the driving rod, an adsorption block which is magnetically opposite to the magnetic block is arranged at the end of the trigger rod away from the driving rod, and the adsorption block extends into the connecting groove. The one-two fusion convenient maintenance ring network box realizes the synchronous switching-on and switching-off of a plurality of switching-on and switching-off knives through single operation of the driving rod and the trigger rod, and the condensate water on the inner walls of the side plates is scraped off through the dehumidification mechanism, so that the maintenance efficiency of the ring network box is improved, and the safe work of the electrical elements in the ring network box is ensured.

This invention relates to the field of drilling equipment, specifically a badminton racket positioning drilling device, comprising a frame, a clamping head, a drilling head, and a feeding assembly. The feeding assembly includes two sets of alternately operating feeding shafts located on the inner and outer sides of the frame, respectively. The feeding assembly also includes a base, a front swing arm, and a rear swing arm. The feeding shafts are fixed on the front and rear swing arms, respectively. Each feeding shaft includes a long beam, a housing, and a conveyor belt. This invention provides two sets of feeding shafts for carrying and conveying racket frames. When one feeding shaft is carrying and conveying racket frames on the inner side of the frame, the other feeding shaft can be positioned near the outer side of the frame for convenient loading by the user. After the inner feeding shaft is empty, a synchronous switching mechanism can drive the two swing arm components to move alternately, sending the feeding shaft that has been carrying a new racket frame to the inner side of the frame for feeding, thereby achieving continuous cyclic feeding without stopping the machine.

The invention discloses a piezoelectric energy acquisition circuit based on a parallel synchronous switch inductor, which comprises n piezoelectric transducers, n rectification circuits, n peak detection modules, an inductor, a first diode and an energy storage capacitor, and is characterized in that each piezoelectric transducer acquires vibration energy, converts the vibration energy into alternating voltage and outputs the alternating voltage; each rectifying circuit rectifies alternating current voltage into direct current voltage to be output, the first diode prevents load current from flowing back, the energy storage capacitor is used for storing electric energy and supplying power to a load, and a one-way conduction circuit, a switching circuit and a detection device are arranged in each peak value detection module; the detection device of each peak detection module can be connected in parallel with the inductor through the switching circuit of the detection device; the piezoelectric transducer has the advantages that only the positive half-cycle peak value of the output voltage of the piezoelectric transducer needs to be detected, the number of components needed by the peak value detection module is small, the overall circuit size is reduced, the cost is reduced, inductors can be shared at the same time during expansion, a time division multiplexing mode does not need to be adopted, and the expansion performance is high.

The utility model provides a micro electric energy collection circuit. The rectification unit is responsible for converting the alternating current output of the piezoelectric collector into a pulsating direct current signal; the synchronous charge extraction unit comprises a self-powered peak detection circuit and a synchronous switch controller and is responsible for efficiently transferring charges from a piezoelectric element to an electric quantity extraction inductor; the secondary electric energy storage unit comprises a primary electric energy storage device, a detection switch, a charging circuit, a secondary electric energy storage device and a voltage stabilization output circuit, input and output of each functional module are sequentially connected in series, and electric energy flows in a one-way mode; the absorption circuit is responsible for absorbing the electric energy in the inductor extracted by the circuit and effectively storing and stably outputting the electric energy; all the functional units are sequentially connected in series, and electric energy flows from the rectifying unit to the voltage stabilizing output circuit of the secondary storage unit in a one-way mode. The input end of the rectification unit is connected with the output end of the micro-electric energy collector, and the output end of the secondary storage unit is connected with the low-power-consumption internet-of-things sensor load. According to the utility model, intermittent weak AC electric signal energy from piezoelectric elements can be efficiently captured, and the intermittent weak AC electric signal energy can be adjusted to a stable output voltage of the Internet of Things sensor through secondary storage.

This invention relates to a non-contact, low-temperature, intermittent heat exchange pulsed-dynamic electrolytic machining apparatus and method, belonging to the field of electrolytic machining. The apparatus consists of a blade workpiece, a cathode plate, a cathode holder, and an insulating sleeve. The cathode plate undergoes high-frequency reciprocating vibration during radial feeding, coordinated with the synchronous switching of a pulse power supply, to achieve pulsed-dynamic electrolytic machining. In this pulsed-dynamic electrolytic machining method, the cooling medium flows into the insulating sleeve from the inlet of the cooling channel, flows through the cooling channel, and then flows out from the outlet of the cooling channel, reducing the temperature inside the insulating cavity. As the blade is shaped and enters the insulating cavity, the cooling medium undergoes convective intermittent heat exchange with the stray electrolyte within the cooling channel, reducing the temperature and conductivity of the stray electrolyte, and even freezing the stray electrolyte, creating a low-temperature environment around the shaped blade and inhibiting the electrolytic reaction in the stray corrosion zone. Pulsed-dynamic machining promotes the removal of electrolytic products and heat, further improving machining accuracy and surface quality.

The utility model discloses an identification friend or foe signal lamp and an identification friend or foe system, a main control board in the identification friend or foe signal lamp is provided with a wireless communication module, a shell is provided with a master-slave dial key and a mode key, and the identification friend or foe signal lamp can be configured as a host or a slave when the master-slave dial key is located at a host gear or a slave gear. The host is used for transmitting a light signal selected by the mode key to each slave through the wireless communication module so as to switch the light signals of the LED indicating lamps on the host and the slave, so that the light signals of the LED indicating lamps on the host and the slave are switched in group simulation confrontation activities; each team member in a team can set the host and the slave through the master-slave dial key on the worn identification friend or foe signal lamp, so that the team member wearing the host can select a light signal through the mode key and then control each slave to switch the light signal through the wireless communication module. The team members in the whole team can realize synchronous switching of light signals identified by friend or foe, and the team can conveniently carry out tactical adjustment.

The invention relates to the field of digital circuit design, and provides a method for optimizing noise influence of a synchronous switch in an IBIS model. When a traditional IBIS model measures pull-up / pull-down characteristics, it is assumed that a power supply and ground potential are constant, voltage fluctuation actually caused by a synchronous switch is ignored, and the simulation precision of a high-speed interface is reduced. By collecting current response data of a pull-up circuit and a pull-down circuit of the buffer under different power supply / ground fluctuations, pull-up and pull-down power supply modulation coefficients are calculated respectively, and the influence of power supply voltage disturbance on output current is represented. In the simulation stage, the output current in the IBIS model is dynamically modulated according to the power supply and ground potential change caused by the real-time SSN, so that the simulation is closer to the real chip behavior. The method does not need to modify a model structure, is compatible with an existing process, remarkably improves the accuracy of high-speed signal integrity analysis, is suitable for design verification of DDR, PCIe and other high-density parallel interfaces, and effectively supports the system-level power supply and signal co-simulation requirements.

The embodiment of the present disclosure provides a memory synchronous switching noise test method and test device, the test method comprises: determining one data input and output terminal of the memory as a first data terminal, and the rest data input and output terminals as second data terminals, and determining the transmission frequency of the first data terminal as a first frequency, and the transmission frequency of the second data terminals as a second frequency; wherein the first frequency is higher than the second frequency; writing first preset data to the first data terminal, and writing second preset data to the second data terminal; reading the written first preset data from the first data terminal; determining whether the memory has synchronous switching noise according to the frequency spectrum information corresponding to the data read from the first data terminal. The embodiment of the present disclosure distinguishes the transmission frequencies of the first data terminal and the second data terminals, and determines whether the memory has synchronous switching noise according to the frequency spectrum information in the data reading and writing process.

The present application relates to the field of oil and gas well downhole operation, disclose a kind of multiple pressure test mechanical slide rail type toe end sliding sleeve, including static locking mechanism is located in outer sleeve, the center guide cylinder of cooperation outer sleeve is used to form static reverse push test switching structure;Pressure test counting mechanism is located in static locking mechanism, cooperation static casing, embedded static cylinder, unlocking guide groove and reset snap spring two for forming rotatable multiple test switching structure;Sealing push mechanism is located in outer sleeve, cooperation center guide cylinder of outer sleeve and static casing is used to constitute pressure receiving structure when pressure test and work;Synchronous switching mechanism is located in outer sleeve, cooperation push ring, rotating sleeve, trapezoidal guide strip, linkage tooth edge cylinder Tapered tooth key and anti-rotation guide strip is used to form multiple pressure test limit switching structure. Through pressure conversion, multiple pressure test and final fracturing opening are completed, which greatly reduces the fault risk of downhole operation.

The invention provides a multi-source collaborative coal mine emergency power supply scheduling optimization method based on a super capacitor, and relates to the technical field of coal mine safe power supply, and the method comprises the steps: obtaining real-time operation parameters of a power supply system, constructing a node state feature matrix, decomposing and extracting dynamic features, constructing a node priority system, generating a power supply path score, and carrying out the global optimization. And determining an equipment switching strategy and a synchronous switching method, and establishing a super-capacitor transition state power supply mechanism. Rapid and reliable switching of the coal mine power supply system is realized, the power supply continuity is guaranteed, and the emergency response capability is improved.

A range automatic switching control system and method of a flow calibration device, the system comprising a multi-stage sensor array connected in parallel and partially overlapping in range, a high-speed switching valve group for controlling the on-off of each flow path, a signal acquisition unit, and a central control unit. The central control unit intelligently judges and executes the range switching instruction according to the acquired instantaneous flow, flow calibration range, fluid temperature, and pipeline pressure, etc. characteristic parameters, and realizes undisturbed range switching through pre-charge pressure and rapid synchronous switching. The present application realizes full-automatic undisturbed range switching in the flow calibration process. The system always selects the optimal range sensor, maintaining high resolution and high accuracy within the full flow range. Through pre-charge pressure and millisecond-level rapid switching, it ensures that the flow fluctuation is less than 0.1%, and the calibration process is continuous and uninterrupted. The intelligent decision mechanism can actively predict and avoid the risk of over-range, effectively protecting the sensor, and greatly improving the calibration efficiency, data reliability, and equipment safety.

The utility model relates to the technical field of double-layer rotating shaft doors, in particular to a double-layer rotating shaft door convenient to push and position. According to the technical scheme, two sets of door bodies are symmetrically arranged in the door frame, each set of door body comprises an outer door plate and an inner door plate, switch assemblies are arranged in the outer door plates and the inner door plates, a synchronous assembly is arranged on one sides of the outer door plates, positioning blocks are arranged below each set of outer door plates, and pulleys are arranged at the positions, close to the positioning blocks, below the outer door plates. According to the utility model, the switch assemblies arranged in the outer door plate and the inner door plate can be respectively opened and closed with the outer door plate and the inner door plate, and the outer door plate and the inner door plate can be in a connected state through the synchronous assembly, so that the outer door plate and the inner door plate can be synchronously opened and closed; and meanwhile, the positioning block is matched with the strong spring, so that the door body can be positioned, the friction between the door body and the door frame can be greatly reduced through the matched arrangement of the pulley, and an operator can conveniently and rapidly open and close the door body.

The application relates to the technical field of radio frequency switches, in particular to a single-pole double-throw type load radio frequency switch connecting rod transmission synchronous switching structure which comprises a fixed base, a first channel switching plate and a second channel switching plate, conductor spring sheets arranged below the two ends of the first channel switching plate and the second channel switching plate, conductor spring sheets penetrating through the base and riveted with spring top rods, an electromagnetic coil and a coil iron core, the electromagnetic coil and the coil iron core being arranged above the two ends of the second channel switching plate, and the coil iron core being arranged on the inner side of the electromagnetic coil. The application adopts a center connecting rod to connect two groups of symmetrical channel switching plates, has small changes, a compact structure and optimized internal space, cancels a group of channel switching electromagnetic coils and other electromagnetic components, reduces assembly time, improves efficiency, reduces heating components after electrification such as electromagnetic coils, generates less heat in the switch, reduces the failure rate, the structure reduces part of components, and can reduce material and processing costs.

The utility model discloses an integrated landscape water treatment device, and particularly relates to the technical field of landscape water treatment, the integrated landscape water treatment device comprises a landscape treatment pipe, a shunt pipe and a lower row main pipe, the shunt pipe is fixedly communicated with the bottom end of the landscape treatment pipe, the lower row main pipe is fixedly communicated with the bottom end of the outer wall of the shunt pipe, and the outer wall of the lower row main pipe is provided with a synchronous switching treatment assembly; the synchronous switching processing assembly comprises a sealing bottom pad arranged on the outer wall of the lower row main pipe in a sliding mode, the lower surface of the sealing bottom pad is fixedly connected with an extrusion block, and one side of the extrusion block is fixedly connected with a linkage frame. The synchronous switching treatment assembly is adopted, the electric cylinder pushes the linkage block to move leftwards, the linkage supporting block drives the sealing gasket to move leftwards, and the lower drainage main pipe is closed, so that water in the flow dividing pipe is filtered along the auxiliary filter element in the lower drainage side pipe, and the lower drainage side pipe and the lower drainage main pipe can be subjected to bidirectional rapid switching treatment.

Disclosed are a method and apparatus for synchronous switching of multiple-input demodulation comparators. The method includes receiving line signals by a plurality of combined multiple-input comparator demodulation circuits, each combined multiple-input comparator demodulation circuit receiving the line signals according to a corresponding input arrangement related to a corresponding subchannel vector of a plurality of mutually orthogonal subchannel vectors, the line signals including a superposition of a set of baseband symbols and a set of carrier-modulated symbols; generating a set of baseband subchannel outputs by combining the set of line signals according to the corresponding input arrangement; obtaining a phase-adjusted demodulation signal related to the set of carrier-modulated symbols; and generating a set of demodulated subchannel outputs by combining the set of line signals according to the corresponding input arrangement and according to the phase-adjusted demodulation signal, the phase-adjusted demodulation signal configured to constructively combine a first half cycle and a second half cycle of the carrier-modulated signals and destructively cancel the set of baseband symbols.

This invention relates to the field of high-voltage direct-connection power supply and power dispatch control technology, and discloses a dual AC input power conversion module, a power supply system, and a control method. The dual AC input power conversion module includes a first AC input terminal, a second AC input terminal, a rectifier unit, and a DC-DC conversion unit. The rectifier unit includes a first rectifier branch and a second rectifier branch connected to the first AC input terminal and the second AC input terminal, respectively. The negative terminal of the first DC bus after rectification by the first rectifier branch is connected to the positive terminal of the second DC bus after rectification by the second rectifier branch. The positive terminal of the first DC bus after rectification by the first rectifier branch and the negative terminal of the second DC bus after rectification by the second rectifier branch serve as the positive and negative terminals of the module's DC bus. In the power supply system constructed based on the dual AC input power conversion module, the secondary side of the phase-shifting transformer is equipped with at least one set of multi-pulse phase-shifting windings. The two AC input terminals of each dual AC input power conversion module are respectively connected to two sets of windings with different phases. Multiple power conversion modules are arranged in pairs to form a minimum output power unit, and are connected to multiple load ports via a matrix switching unit. The controller controls the synchronous switching of two power conversion modules in the same group and performs power allocation and recovery.

This application discloses a theme synchronization switching method, apparatus, electronic device, and storage medium. The method includes: registering a corresponding callback function for a theme information change operation; obtaining the triggering condition corresponding to the theme information change operation by executing the callback function; updating the processing function for theme synchronization switching based on the obtained triggering condition; and executing the processing function when the triggering condition is met to complete the synchronous switching of themes on different screens. The theme synchronization switching method, apparatus, electronic device, and storage medium provided by this invention can improve the success rate of theme consistency and eliminate the unnecessary action of manually switching themes.

The application discloses a power supply vehicle suitable for emergency power supply of low-voltage transformer area, and belongs to the technical field of emergency power supply of power distribution networks. The power supply vehicle suitable for emergency power supply of low-voltage transformer area comprises a vehicle body, a bidirectional isolation type DC and DC module, a direct-current bus, a network construction type PCS, a STS synchronous switch, at least two direct-current fast charging interfaces, a central controller, a battery management system and a grid-connected interface. The vehicle body is a new energy mobile carrier with fast charging and fast discharging functions. The direct-current fast charging interface is arranged on the vehicle body, and the outer side end of the direct-current fast charging interface is electrically connected with the bidirectional isolation type DC and DC module, so that bidirectional electric energy interaction between a new energy automobile and the direct-current bus is realized. In addition, the direct-current fast charging interface adopts the national standard GB and T20234.3 standard. One end of the bidirectional isolation type DC and DC module is electrically connected with the direct-current fast charging interface, and the other end is electrically connected with the direct-current bus.

The utility model discloses a liquid chromatographic column box device with a switching valve, which comprises a box body, the box body is provided with the switching valve, the switching valve comprises a flat plate, the flat plate is provided with a positioning block and a sliding block, and the sliding blocks on a plurality of groups of switching valves are connected to form a synchronous switching valve group. The linkage type flow path switching device is simple and compact in structure, the switching function is easy to implement, linkage type synchronous flow path switching is achieved in real time by connecting the sliding blocks through the connecting rods when different analysis methods are used, a chromatographic column does not need to be frequently replaced, and dead volume cannot be increased.

The application relates to the field of circular elevator door machines, and discloses a split automatic door opening and closing machine in a circular elevator, which comprises an upper base plate, a lower base plate, a guide wheel, an upper half ring of a synchronous belt, a motor, a reverse wheel, a lower half ring of the synchronous belt, a motor controller, a reverse wheel support is mounted on the inner side of the upper base plate, a reverse wheel is mounted on one side of the reverse wheel support, a guide wheel is arranged between the upper base plate and the lower base plate, the upper half ring of the synchronous belt and the lower half ring of the synchronous belt are combined to form a closed loop annular synchronous belt, one end of the annular synchronous belt is sleeved with a motor driving wheel of the motor, and the other end of the annular synchronous belt is sleeved with the reverse wheel after passing the outer side of the guide wheel. The application has simple and reasonable structure, smooth operation, and can ensure the synchronous opening and closing of the car door.

The invention discloses a synchronous switching control method for an instrument and a vehicle-mounted machine theme of an intelligent cabin. Comprising the following steps: in response to a theme switching instruction, a vehicle terminal generates a first theme switching signal, and executes operations of controlling vehicle interface switching and generating a synchronizing signal frame with an embedded code in parallel; the instrument end receives the signals and the frames, and theme switching is triggered after double-channel signal consistency verification. According to the method, an image frame hard coding and two-way verification mechanism is adopted, the technical problem that theme switching between an instrument and a vehicle-mounted terminal and theme switching between the whole interior of the instrument and screen projection content are not synchronous due to different rendering time consumption is effectively solved, and the display consistency, software reliability and user experience of an intelligent cabin are greatly improved.

The utility model provides an immersive multi -screen splicing and picture synchronous switching device relates to multimedia playing technical field, solves the requirement of picture immersion, therefore will adopt the use of connection display screen of multiple sets of devices cooperation, but when using simultaneously in multiple devices, through not having good cooperation mechanism use between the devices, lead to the device can not be used in good cooperation, influence the problem of actual experience. Immersive multi -screen splicing and picture synchronous switching device, include: the picture synchronous switcher body bottom is equipped with support seat, when needing to connect more display and use multiple groups of picture synchronous switcher body, only need to place the support seat of the bottom of the newly added picture synchronous switcher body firmly on the top of the existing equipment, make it strictly fits the joint and insert into the fixed slot of adjacent picture synchronous switcher body through manual clockwise rotation fixed screw, still can ensure that each group of equipment keeps perfect vertical alignment and stress balance.

The application discloses a kind of stove abnormal combustion's sub-condition determination control method, stove, the method includes the following steps: by abnormal combustion protection switch receiving on-off instruction, shield protection logic when closing, then execute subsequent steps when starting;Real-time acquisition burner temperature data using thermistor located between outer ring fire cover and center fire cover on burner burner head cover plate;According to temperature threshold value determination single burner or multiple burner working condition, when switching mode, synchronous switching abnormal determination standard;According to corresponding working condition, adopt different temperature rise slope interval and limit temperature threshold, temperature is greater than or equal to 100 DEG C, start slope determination, any condition satisfies, it is determined that abnormal combustion;Determine abnormality, output instruction cuts off stove main gas passage.The application can accurately identify abnormal combustion of stove under different working conditions, and consider safety protection and use demand, quickly cut off gas to reduce safety risk.

The application discloses a kind of multi-constraint impedance optimization methods of 2.5-dimensional integrated circuit based on core particle, comprising the following steps: constructing the equivalent circuit model of 2.5-dimensional integrated circuit comprising multiple parasitic parameters, obtaining the impedance matrix of equivalent circuit model;According to target impedance Z target,f And impedance matrix constructs impedance target function;According to equivalent circuit model, construct first constraint, second constraint and third constraint;According to impedance target function, first constraint, second constraint and third constraint, construct mixed target function;According to mixed target function and the PDN parameter of equivalent circuit model, determine the minimum value of mixed target function and the target position of corresponding core particle, the target capacitance quantity in interposer and the position of target capacitance.The optimization method of the application reduces system impedance, further reduces the synchronous switching noise of system, and improves the performance of 2.5-dimensional integrated circuit.

The invention relates to the technical field of semiconductor epitaxial growth, in particular to a high-quality InGaAsP or InGaAsP multi-quantum hydrazine interface epitaxial growth method, which comprises the following steps: adopting a dual-channel V-group source peak shifting switching strategy in MOCVD (Metal Organic Chemical Vapor Deposition) equipment: firstly turning off a III-group source and keeping the V-group source to be connected for T1 seconds (1-10 seconds), then switching a V-group source channel for T2 seconds (1-10 seconds), and finally turning on the III-group source to grow a next layer. The method ensures that the interface is always in a V-group protection atmosphere, and a component transition layer caused by traditional synchronous switching is effectively eliminated. According to the invention, an atomic-scale steep interface can be realized, the light-emitting intensity and wavelength consistency of the quantum well can be improved, and the method is suitable for manufacturing an EML laser active region.

This application relates to the field of interactive content playback, and in particular to a method and system for intelligent video content orchestration based on a multi-level rule engine. The method includes: acquiring a global broadcast time anchor point of a live channel and a multi-branch path dataset of interactive videos; based on this, performing real-time viewer progress tracking and estimated completion time analysis for each branch path to generate a viewer progress and time prediction information set; based on the viewer progress and time prediction information set, performing dynamic adjustment strategy analysis for flexible paths oriented towards the global time anchor point to generate a dynamic adjustment instruction set for controlling video content distribution; and based on the dynamic adjustment instruction set, performing personalized real-time video stream splicing and channel-level synchronous switching control to generate and output a channel broadcast stream synchronized with the global broadcast time anchor point. In the process of intelligent video content orchestration, this application reduces viewer experience interruptions or dissatisfaction through intelligent and flexible progress control, thereby improving viewing satisfaction.

The utility model discloses a sensor for rearview mirror angle control, which comprises a sensor body, the sensor body comprises a base, and a support is arranged on the base along two sides in an extending manner; the gear driving unit comprises a first gear driving assembly and a second gear driving assembly, the first gear driving assembly and the second gear driving assembly are arranged at the two ends of the support respectively, the gear driving unit is used for being in transmission connection with the rearview mirror, and when the rearview mirror switches the rotating direction, the gear driving unit synchronously switches the rotating direction; the connecting assembly is arranged in the base and connected with the gear driving units along the two ends of the support. The rearview mirror is reasonable in structural design, synchronous switching is achieved when the rotating direction of the rearview mirror is switched by arranging the gear driving unit, and therefore angle data of the rearview mirror can be obtained after the rearview mirror is adjusted left and right, and the angle data of the rearview mirror can be memorized and stored. Accurate and quick response is achieved, delay, jamming and angle deviation are avoided, and driving safety is improved.

The invention relates to a high-efficiency coordination control method for a semi-active bridge wireless power supply system, which is used for solving the problem that the light weight of a receiving end and the high energy transmission efficiency are difficult to consider when the battery load of the semi-active bridge-based wireless power supply system changes. According to the method, for a wireless power supply system based on a semi-active bridge, the conduction angle of a semi-active bridge synchronous switch is calculated and adjusted at a receiving end, and impedance matching is achieved; and then voltage regulation is carried out at the transmitting end, so that the output voltage can track the reference voltage value when the equivalent load changes, the impedance matching requirement of the receiving end is met on the premise of not additionally adding a passive matching network or a cascaded DC / DC converter, and the energy transmission efficiency of the wireless power supply system is improved.