59results about How to "Add work mode" patented technology

A wide high speed range multimode programmable frequency divider with 50 percent of duty ratio comprises basic frequency division units cascaded with each other, a main divider stage comprising a series of or gates and used for expanding frequency driving ration range, a 2 divider stage made up of a DFF flip-flop element . A first stage basic frequency division unit in the main divider stage is a 2/3/4 frequency division unit while the rest is a 2/3 frequency division unit. A mode control signal output end of a second stage basic frequency division unit in the main divider stage inputs a trigger signal end of the DFF flip-flop element. A Q end of the DFF flip-flop element outputs the final output f of the frequency divider. The frequency divider has simple circuit structure, low power consumption, good effect; the output signal has low jitter characteristic; the duty ratio of a control output signal reaches 50 percent; when in even number frequency division, output duty ratio is 50 percent; when in odd number frequency division, the output duty ratio is 44.4 % at worst; along with the augment of the duty factor, the output duty ratio is closer to 50 %.

The invention provides a broadband low-profile omnidirectional radiation vertical linear polarized dielectric resonating antenna. According to the technical scheme, the antenna comprises an antenna feeder, a metal floor, an inner dielectric annular ring and an outer dielectric annular ring, wherein the inner dielectric annular ring is processed with a low dielectric constant and the outer dielectric annular ring is processed with a high dielectric constant. The inner dielectric annular ring and the outer dielectric annular ring are fixed on the upper surface of the metal floor and the centers of circles of the inner dielectric annular ring and the outer dielectric annular ring are overlaid. The antenna feeder is provided with a coaxial joint, an outer conductor of the antenna feeder is arranged on the lower surface of the metal floor and is electrically connected with the metal floor, and an inner conductor of the antenna feeder penetrates through the metal floor at the center of circle of the inner dielectric annular ring and extends out vertically from one side of the upper surface of the metal floor. The antenna provided by the invention has the advantages of being simple in structure, easy to process and assemble, low in profile and broad in band.

The invention provides a residual current protecting device. The residual current protecting device comprises a first current transformer, a second current transformer, a switching unit, a first residual current detecting module and a second residual current detecting module, wherein the second residual current detecting module comprises a first detecting unit and a second detecting unit; the switching unit is used for switching the residual current protecting device between a first state and a second state, so that, in the first state, the coil of the first current transformer and the coil of the second current transformer can be connected in series and both ends of the formed series-connected coil set can be connected with the two input electrodes of the first residual current detecting module, and in the second state, both ends of the coil of the first current transformer can be connected with the first detecting unit and both ends of the coil of the second current transformer can be connected with the second detecting unit. The residual current protecting device can enhance the sensitivity under the premise of no increase in size.

The invention discloses a multimodal vascular robot based on giant electrorheological fluids. The vascular robot comprises a fuselage body, hand pawls uniformly arranged on the fuselage body through rotating joints, and a variable pump, an ultrasonic motor and a micro motor arranged in the fuselage body. The hand claws and rotating joints are hollow structure. A passage communicating with the variable displacement pump through the rotating joint is arranged in the cavity of the hand pawl. The front portion of the rotary joint comprises a plurality of identical first semi-cylindrical tables andthe rear portion comprises a plurality of identical second semi-cylindrical tables. And a gap exists between adjacent two first semi-cylindrical tables and between adjacent two second semi-cylindrical tables. The cavity of the rotating joint and the cavity of the paw are filled with giant electrorheological fluids. The robot utilizes the giant electrorheological fluid in the blood vessel robot, simplifies the structure of the rotating joint, enhances the support strength of the hand pawl, and increases the working mode of the blood vessel robot, and has the functions of dredging the thrombus,removing the arterial fat deposit, supporting the blood vessel and the like.

The invention provides a method for autonomous access to a low-orbit broadcast satellite without ephemeris, aiming to solve a problem that a terminal device cannot access to a low-orbit broadcast satellite without ephemeris. The method is as follows: amid no ephemeris or ephemeris failure, the terminal device autonomously accesses to the low-orbit broadcast satellite, wherein autonomous accessingfalls into three stages: target search stage, target precise tracking stage and orbit data receiving stage, in the target search stage, a target is searched in a full-range traversing manner in a search spatial domain, after a satellite signal is found, target precise tracking stage is started, the terminal is guaranteed to receive the satellite signal constantly in a time period through orbit observation and extrapolation methods, after precise tracking for a fixed time, the orbit data receiving stage is started, a terminal receiver solves orbit data delivered by a satellite in a received data frame, and complete update of local ephemeris and access to subsequent circle by using new orbit data.

The invention discloses a multi-output mode conversion control circuit of a switching power supply. The control circuit comprises a power output module, a constant voltage control loop circuit, a constant current control loop circuit, an MCU, a control chip, an alternative module, two digital potentiometers and a current sensor. An input voltage is divided by the digital potentiometers; after comparison and amplification by an error amplifier, the MCU controls the alternative module to select the constant voltage control loop circuit or the constant current control loop circuit; and a requiredvoltage value can be set in a constant voltage mode, and a required current value is set in a constant current mode, so that the power supply has constant-voltage and constant-current working modes.The multiple output modes of the power supply can be applied to various power utilization occasions, so that the flexibility and convenience of the power supply in use are improved.

The invention discloses a variable structure combined LLC resonant converter. The converter comprises a direct current source, a square wave generator, a combined resonance circuit, a combined transformer, a combined rectification filter circuit and a load, wherein the combined resonance circuit includes a first LLC resonance circuit and a second LLC resonance circuit; the combined transformer includes a first transformer and a second transformer; the direct-current source is connected with the square-wave generator; the square-wave generator is connected with the combined resonance circuit, the combined resonance circuit is connected with a primary side of the combined transformer, and a secondary side of the combined transformer is connected with the combined rectification filter circuit; and the combined rectification filter circuit is connected with the load. According to the variable structure combined LLC resonant converter, four working modes can be combined and converted, a gain range of the converter can be widened, stable output can be guaranteed through mode transition, conduction losses are not increased due to the added rectifying device, and the advantages of the LLCresonant converter are reserved.

The invention relates to an ignore blind area earth leakage protective method and the circuit breaker. The circuit breaker comprises a casing, a power supply circuit, an electrical detection circuit, a control circuit and an electrical wiring board of actuator, wherein the power supply circuit is provided with a expend full wave bridge circuit with rectification branch circuit of PE input earth connection, the electrical detection circuit is provided with an zero-sequence current transformer with the secondary coin and an LED insulation condition indicator light, the control signal output foot of IC control chip of the control circuit is provided with the method of selective switch in the operation mode in order that the control circuit has normal operation electric voltage in any case, the drive operation execution device can apply the protective function of tripping operation and cutting power when the abnormal condition happens on the phase line or the center lines. The area earth leakage protective circuit breaker has real coverage earth leakage protective function, which has strong practicability.

The invention discloses an experiment power supply and an experiment system. The experiment power supply comprises a transformer, a rectifier connected with the transformer, a three-phase inverter connected with the rectifier. An A phase inverter, a B phase inverter and a C phase inverter in the three-phase inverter are the same in structure. The A phase inverter comprises a first inversion unit and a controller, wherein the first inversion unit comprises n first switch elements which are connected in series, n is larger than or equal to four, and the controller is connected with all the first switch elements and is used for controlling the switch states of all the first switch elements. The experiment power supply and the experiment system solve the problem that the waveform quality of an experiment power supply in the prior art is poor, so that the effects of reducing the harmonic content in output voltage of the experiment power supply and improving the output quality of waveforms of the experiment power supply are further achieved.

The invention provides a method for uniformly controlling the conference scene showing of a video conference system. The video conference system is of a star network structure, and a central control system and a conference scene showing control module of the video conference system are in communication with conference scene terminal equipment through a concentrator and MCU equipment. The method includes the following steps that the conference scene showing control module establishes an analog simulation message; a conference template is established according to acquired conference data; the MCU equipment is started; the conference scene showing is controlled through the conference scene showing control module. The method achieves uniform control over the conference scene showing by establishing the analog simulation message on the basis that the network structure of an original video conference system is not changed and thus improve operation efficiency of the video conference system.

The invention discloses a bidirectional direct-current converter. The bidirectional direct-current converter comprises a full-bridge circuit, an inductor and a first full-controlled device, wherein the full-bridge circuit comprises a first half bridge and a second half bridge; the first half bridge comprises a second full-controlled device and a third full-control device; the second half bridge comprises a fourth full-controlled device and a fifth full-controlled device; the first end of the inductor is connected with the middle point of the first half bridge; the second end of the inductor is connected with the middle point of the second half bridge; the third end of the inductor is connected with the input end of the first full-controlled device; the output end of the first full-controlled device is connected with the output ends of third full-controlled device and the fifth full-controlled device. By adopting the bidirectional direct-current converter, the full-bridge circuit, the inductor and the first full-controlled device are utilized, so that the circuit can be switched freely among six bidirectional working modes, the working modes of the bidirectional direct-current converter are increased, and meanwhile the voltage adjustment width is increased.

The embodiments of the present invention provide a laser scanning method and apparatus. The method comprises the following steps that: a laser operation instruction is received, a working mode and a light emission mode which are the same as a target working mode and a target light emission mode which are contained in the laser operation instruction are selected from a plurality of working modes and a plurality of light emission modes corresponding to the plurality of working modes; and the laser operation instruction is responded, and a laser is controlled to emit corresponding laser according to light emission parameters corresponding to the light emission mode. According to the laser scanning method provided by the technical schemes of the invention, different laser scanning modes are selected according to different use demands, and therefore, the working modes of a laser scanning device and the light emission modes of the laser can be expanded, and thus, the general applicability of laser scanners can be improved.

The invention provides a coin-operated dance machine and a remote dance battle method and relates to the technical field of recreational equipment, wherein the coin-operated dance machine comprises body and a footboard, a camera mechanism and a display screen are fixed to the same outer surface of the body; the footboard is positioned on the side of the body provided with the camera mechanism and the display screen and is fixedly connected with the body, the footboard is used for providing a user with a dance area, a remote communication module is arranged in the body, the coin-operated dance machine is in communication connection with a remote dance machine through the remote communication module, the remote communication module transmits a first user's dance video taken by the camera mechanism to the remote dance machine, receives a second user's dance video sent by the remote dance machine, and the display screen is used for displaying the first user's dance video and the second user's dance video. The coin-operated dance machine and the remote dance battle method solve the technical problem that an existing coin-operated dance machine having only one working mode is unable to meet the needs of various players.

The invention discloses a power drive system of a vehicle and the vehicle with the power drive system. The power drive system of the vehicle comprises a power source, a speed varying unit, a first electric generator unit, a system power output part and a mode conversion device, wherein the speed varying unit is suitable for being selectively in dynamic coupling with the power source, the mode conversion device is used for being in dynamic coupling or decoupling with at least one of the speed varying unit and the first electric generator unit and the system power output part, when the mode conversion device is disconnected from at least one of the speed varying unit and the first electric generator unit and the system power output part, power output by the power source is suitable for driving the first electric generator to generate power through the speed varying unit and the mode conversion device in sequence. By means of the power drive system, the working modes of the power drive system can be increased, and particularly under a parking power generating mode, the functions of the vehicle are greatly enriched.

According to the double-switch type DC/DC converter circuit topological structure, through the design of different turn ratios of the primary side and the secondary side of the coupling inductor, charging and discharging of the capacitor C1 and the capacitor C2 and leakage inductance energy recovery in the working process, the converter loss is reduced and the efficiency is improved while the high-voltage gain of the converter is realized. Besides, the boost converter is relatively simple in circuit structure, few in circuit working modes, low in device voltage stress, capable of achieving coupling inductance primary and secondary side energy and leakage inductance energy feedback, and suitable for a boost converter system between the output side of a photovoltaic cell and the micro-grid direct-current bus voltage.

The invention provides an intra-pulse airspace scanning radar system and a receiving and processing method thereof. The system comprises an intra-pulse scanning transmitting module which is configuredto transmit signals through diversified array elements and carry out intra-pulse scanning transmission of an array antenna, an echo signal receiving module configured to receive a target echo signalin a coverage airspace through multi-beam receiving, and an echo signal processing module configured to process the target echo signal through multi-pulse phase-coherent accumulation detection.

A hot water air conditioning system comprises a hot water unit (1), an air conditioning unit (2) and a heat-transferring pipeline module (3). The hot water unit (1) has a water inlet pipeline (16) and a water outlet pipeline (17). The water inlet pipeline (16) is provided with a water guide branch (11) in communication with an external water supply pipeline. Through the water guide branch (11), low-temperature water can be introduced into the system, so that water output from the water outlet pipeline (17) maintains a constant temperature and does not affect the efficiency of the air conditioning unit.

The invention relates to a host machine of a split television, a display device and a working mode adjustment method. The host machine comprises a signal analysis module for determining the source of power supply signals, and a mode adjusting module for adjusting the working mode of the machine body of the host machine to a first mode when the power supply signals come from an interface, and adjusting the working mode of the machine body of the host machine to a second mode when the power supply signals come from a power source adaptor. According to the host machine of the split television, the display device and the working mode adjustment method provided by the technical schemes of the invention, when the host machine of the split television cooperates with other displays rather than a preset display so as to work, the powering on of the host machine can be completed; and when the host machine of the split television is connected with different displays, the machine body of the host machine can also work under at different modes, and therefore, the host machine can be matched with the other displays so as to work, the host machine can work under the second mode which is different from the first mode, and thus, the working modes of the host machine of the split television can be expanded.

The invention discloses a power drive system of a vehicle and the vehicle with the same. The power drive system of the vehicle comprises a power source, a first electric generator unit, a system poweroutput part and a mode conversion device, wherein the mode conversion device comprises a conversion device input part and a conversion device output part, the conversion device input part is selectively in dynamic coupling with the power source, the conversion device input part is in dynamic coupling with the first electric generator unit, the conversion device output part is fixed to a shell ofthe system power output part, the conversion device input part is selectively connected with the conversion device output part, and when the conversion device input part and the conversion device output part are disconnected, the power source is suitable for directly driving the first electric generator unit to generate power. The power drive system has many working modes, and particularly under aparking power generation mode, the functions of the vehicle are greatly enriched; meanwhile, the power source is suitable for directly driving the electric generator unit to generate power, and the drive efficiency is high.

The invention discloses a lithium battery energy storage efficient heat management unit. The unit comprises a box body; a three-way two-position electromagnetic valve A and a three-way two-position electromagnetic valve B are installed in the box body; a first valve port of the three-way two-position electromagnetic valve A and a third valve port of the three-way two-position electromagnetic valve B are both connected with a shell-and-tube condenser through an anti-freezing solution pipeline; a second valve port of the three-way two-position electromagnetic valve A and a fourth valve port of the three-way two-position electromagnetic valve B are both connected with a low-temperature radiator through an anti-freezing solution pipeline; the other valve port of the three-way two-position electromagnetic valve A is connected with the input end of a water pump through an anti-freezing solution pipeline; the other valve port of the three-way two-position electromagnetic valve B is connected with the output end of the water pump through an anti-freezing solution pipeline; the other end of the low-temperature radiator is connected with a plate heat exchanger through an anti-freezing solution pipeline. The opening and closing of the corresponding valves ports of the three-way two-position electromagnetic valve A and the three-way two-position electromagnetic valve B and the startup and stop of the water pump are controlled, so that an anti-freezing solution in the management unit can be changed, and therefore, a refrigeration mode and a heating mode can be achieved.