923results about How to "Implementation drive" patented technology

The invention discloses a calibration device of a laser alignment device and a method for measuring indication errors of the laser alignment device through the calibration device. The calibration device comprises two mutually independent rotation shafts capable of rotating for 360 degrees. One of the rotation shafts is used as a reference shaft and the other rotation shaft is capable of moving, pitching and deflecting in the horizontal direction and vertical direction. By setting the rotation angles of the rotation shafts, and adjusting the horizontal and vertical displacement quantity, pitching quantity and deflection quantity of the other rotation shaft, measurement of the displacement quantity in the horizontal and vertical directions, the rotation angle quantity of an inclinometer and indication errors of alignment deviation of a position sensitive sensor of the laser alignment device can be achieved. According to the invention, operation states of the laser alignment device in actual working processes can be precisely simulated; the standard alignment deviation quantity of measurement shafts can be displayed in a real-time and direct manner; calibration results are quite precise; and operability of the measurement process is quite high.

The invention provides a spatial six-degree-of-freedom motion platform modal control method. In the invention, a spatial six-degree-of-freedom motion platform modal matrix is used to convert a strong-coupling physical space system into a decoupled modal space system, a modal control concept is introduced on the basis of the conventional spatial six-degree-of-freedom hydraulic motion platform control, the modal conversion matrix is used to decouple a strong dynamic coupling six-degree-of-freedom hydraulic motion platform, an expected physical input signal and a motion platform actual output signal are converted into modal signals to perform independent modal control regulation, the drive and control of the spatial six-degree-of-freedom hydraulic motion platform are realized, the coupling influences among the actuators and degrees of freedom in a spatial six-degree-of-freedom hydraulic motion are weakened effectively, indexes such as the single degree of freedom motion and multiple degree of freedom motion reproduction of the six-degree-of-freedom hydraulic motion platform are improved, and the bandwidths of degrees of freedoms besides the close degree of freedom of a first order modal are improved.

The invention discloses a heating returning closed cooling recirculation system of a Brighton scramjet, which relates to a cooling recirculation system of a scramjet. The invention aims at solving the problems of cooling difficulty, a large amount of cooling fuel flow, insufficient heat sink and gas-fetching difficulty of the fuel supply system of the scramjet of a prior hypersonic aerial vehicle. One end of a central axis is connected with a generator and another end thereof is respectively connected with a gas compressor and a fuel pump. A turbine is arranged on the central axis between the generator and the gas compressor. A cooling channel is arranged on the external wall at the upper part of the scramjet. The cooling recirculation system is provided with a primary cooling loop and a secondary cooling loop. The cooling recirculation system of the scramjet is applicable to the thermal protection of the hypersonic aerial vehicle and the cooling of the scramjet.

The present invention provides a system for automatically detecting the redundant object of the spaceflight electronic device and a detecting method. The system comprises the following components: a sound sensor 1, a rotating platform 2, a crank-rocker mechanism 3, an IO*amp;DA board card 4, a transducer 5, a three-phase machine 6, a sound signal regulating circuit 7, a real-time data collection card 8 and an upper machine processor 9. The sound sensor is adhibited on the external wall of the detected pice. The sound sensor 1 is connected with the sound signal regulating circuit 7 through a signal wire. The sound signal regulating circuit 7 is connected to the real-time data collection card 8. The real-time data collection card 8 is connected with the upper machine processor 9. The upper machine process 9 is connected with the control end of the transducer 5 through the IO*amp;DA board card 4. The transducer 5 is connected to the three-phase machine 6 which drives the rotating platform 2 through the crank-rocket mechanism 3. The invention settles the problems of no high detecting precision, no strong objectivity, no realization for automatic detection or automatic determining, only determination to the existence of the redundant particle, no determination to the material and characteristic of the redundant object and the like in the existing traditional PIND detection method.

The invention comprises a shaping circuit, a CPLD logic controller, a pulse modulation amplification circuit, an isolating transformer, a pulse demodulation circuit and an output amplification circuit. The inputted signals are translated into the square wave through the shaping circuit, and then are inputted into the CPLD logic controller to make logic process; after outputting, the signals pass through the modulation amplification circuit to generate the sharp pulse signals that are coupled to the sublevel through the isolating transformer and reduced to PWM signals through the demodulation circuit; finally, driving the IGBT through the output amplification circuit.

The invention relates to an H-bridge driving control circuit of a motor, which comprises an H-bridge driving circuit, a driving control unit, an anti-interference unit and a protection unit, wherein in the H-bridge driving unit, two diagonal branch circuits are formed by four switching tubes; the driving control unit is used for converting an input control signal into a suitable voltage for controlling to switch on the corresponding switching tube; the anti-interference unit is used for preventing the upper arm switching tube of the other branch circuit from being switched on when one branch circuit is in the switch-on state; and the protection unit is used for preventing the lower arm switching tube of the other branch circuit from being switched on when one branch circuit is in the switch-on state. The H-bridge driving control circuit of the invention prevents the P switching tube which cannot be switched on from being switched on due to starting of the motor or burr generated by transient large current, improves the anti-interference capacity of the circuit, and can rapidly switch off the corresponding N-channel switching tube when the circuit control signal is disordered or goes wrong, so that the circuit has through protection function. The whole driving control circuit is driven by a single power supply, is easy to implement and has a simple structure, and the reliable work of the circuit is further guaranteed.

The invention discloses a method for driving a virtual character and a device thereof. The method comprises the steps that a three-dimensional face model is constructed according to face information in an image; the expression and attitude control parameters of the three-dimensional face model are determined; and the expression and attitude control parameters are applied to a three-dimensional virtual character so that the expression and the attitude of the three-dimensional virtual character are maintained to be consistent with those of the face in the image. Therefore, the expression and the attitude of the face in the image can be tracked, and the virtual character is driven in a virtual space so that communication of the facial expressions between the character in the virtual space and other virtual characters is enabled to be highly personified; meanwhile, users can realize driving of the virtual character under the state of keeping easy and natural in the use process without operation of marking points on the face so as to have no user antipathy and enhance the user experience.

The invention provides a pipeline inspection robot. The robot mainly comprises parts of a cover plate supporting column, a cleaning motor, travelling motors, supporting arms, a triangular plate, a ball screw, a connecting bolt and lifting plates. According to the pipeline inspection robot, a roller movement mode is adopted, electric drive is adopted, the lifting plates are driven to move upwards or downwards through the ball screw, so that the movement of the first lifting plate or the movement of the second lifting plate drives the supporting arms to lift and fold upwards to be close to the ball screw or to drop and expand downwards to be far away from the ball screw; therefore, the pipeline inspection robot can correspondingly control rollers at the end parts of the supporting arms according to the size of a pipeline, so that the rollers can be kept in close abutting connection with the inner wall of the pipeline, then the position of the pipeline inspection robot in the pipeline canbe maintained through the abutting action of the rollers, and driving and control of the pipeline inspection robot running up and down are achieved; and therefore, the pipeline inspection robot not only maintains certain pipeline passing performance but also has certain speed.

The invention aims at providing a liquid path system based on unit metering and a use method thereof. The liquid path system has the functions of fetching liquid, mixing and discharging the liquid at the same time, guarantees accurate metering and is convenient to use. In order to achieve the effects, the liquid path system comprises an upper solenoid valve, a reaction container, a lower solenoid valve, a liquid level sensor, a multi-position valve, a three-way valve and a peristaltic pump. Through the structure, the liquid path system has the following benefits as follows: a volume metering mode of an extraction unit is achieved through a hard plastic guide pipe connected between a public hole of the multi-position valve and the liquid level sensor; the whole liquid path system only makes use of one liquid level sensor; and a reagent is metered and directly enter the reaction container to be subjected to processes of mixing, reacting, testing and the like.

The invention discloses a high-pressure bidirectional miniature power-driven air pump which comprises a motor, an eccentric shaft, an oscillating bar, a pump body, a left cylinder body, a right cylinder body, a piston rod, and a one-way valve body and a cylinder cover connected with the two cylinder bodies, wherein the motor is fixed on the pump body, a motor shaft is connected with the eccentricshaft, a driving pin at one end of the eccentric shaft penetrates through one installation hole of the oscillating rod, the oscillating rod is connected on the piston rod arranged horizontally by a screw, sealing rings are arranged on two ends of the piston rod and stretch into the left and the right cylinder bodies respectively, and the two cylinder bodies are respectively arranged at two ends of the pump body. The power-driven air pump has the advantages of small volume, light weight, low power consumption, capacity of generating high pressure, wide pressure range, good starting performancewith pressure, and the like, and can satisfy the requirements of the industry on small flow and high pressure.

The invention discloses a driving device for a large-sized reciprocating motion machine tool. According to the driving device, two same hydraulic cylinders are fixed together in parallel in the opposite directions, a piston rod of each hydraulic cylinder is provided with a pulley, one end of a sliding workbench of the machine tool is fixedly connected with one end of one steel wire rope, and after the steel wire rope passes through the pulley on the edge where the steel wire rope is located, the other end of the steel wire rope is fixedly connected with a machine tool body; the other steel wire rope is fixed at the other end of the sliding workbench of the machine tool, and after the steel wire rope passes through the pulley on the edge where the steel wire rope is located, the other end of the steel wire rope is fixedly connected with the machine tool body. According to the driving device, in the strokes of the piston rods of the hydraulic cylinders, the sliding workbench can obtain the doubled stroke distance of the piston rods, the purpose of lowering costs can be achieved, in particular, the advantage of being easy to manufacture is achieved, and the sliding workbench with a large stroke of the machine tool can be driven.

The invention belongs to a hand-operated air pressure sample introduction method for microfluidic chips. According to a hand-operated mixed sample introduction detection method for microfluidic chips, pressure generated by pushing of a section of enclosed air to another end is used as power to drive liquid in a chip detecting micro-channel circuit which forms an enclosed passage to flow along a designated target direction and to pass the position of a detector on a microfluidic chip so as to complete analysis and detection of substances; a cavity 11 is provided at a sample introduction inlet of the microfluidic chip for storage of a reaction solution and air used as a driving means, which is beneficial for people to control reaction and detection timing, and continuous air pressure is easily generated and is used as power needed in flowing of the liquid in the microfluidic chip, which enables driving to be realized. The hand-operated mixed sample introduction method provided in the invention has high cost performance and is simple and practical; the method is an optimal lightweight sample introduction scheme and is especially applicable to on-site detection and analysis in the field. The method can be widely applied to a variety of microfluidic chip detection apparatuses and has good versatility.

The invention relates to an open winding motor system and a drive circuit and belongs to the technical field of opening winding motor control. Redundant bridge arms and redundant inductors are set inthe drive circuit. When an open circuit fault occurs in certain phase of winding or certain bridge arm, the fault winding or bridge arm stops working, the redundant inductors and the redundant bridgearms are put into operation, and fault-tolerant control is realized. Even under fault condition, a connection method of motor windings is not limited, and a switching drive signal originally sent to the fault bridge arm is forwarded to the redundant bridge arms, so the control is simple, secure and reliable. Even if the fault occurs in certain phase, the circuit still can be operated normally, normal drive is realized, and reliability of an inverter circuit is improved.

Disclosed are an electric vehicle, a control method thereof and a system for controlling driving and braking thereof. The system comprises a pedal plate, a first collection unit, a second collection unit and a control unit; the first collection unit is used for collecting a pedal plate depth signal; the second collection unit is used for collecting the rotating speed of a motor; the control unit is used for determining whether a control signal needs to be output to control the driving and braking of the vehicle or not according to the pedal plate depth signal, determining a driving power value for the vehicle according to the pedal plate depth signal and the rotating speed of the motor and calculating the braking force of the vehicle according to the pedal plate depth signal. According to the electric vehicle, the control method thereof and the system for controlling the driving and braking thereof, a serious traffic accident caused by the accidental stepping of a driver due to the separate arrangement of the fuel feed pedal and the braking pedal is avoided; the driving and braking control of the vehicle can be implemented only through the single pedal plate of the system and accordingly the operation of the driver is simple; the control signal is output to the motor from the control unit to control the motor to output the reverse torque in the braking process so as to enable the energy to be recycled to a battery and accordingly the maximum recovery of the energy is implemented.

The invention discloses a solar thermal collector which comprises a thermal collection pipe, a framework, a reflecting plate and a reflecting plate rotation control device; the reflecting plate is positioned on the back side of the thermal collection pipe, and a focal axis of the reflecting plate is coincident with the axis of the thermal collection pipe; the reflecting plate is used for gathering the solar energy onto a thermal absorbing body of the thermal collection pipe; the reflecting plate rotation control device is used for driving the reflecting plate to rotate by taking the focal axis as a center, so that the reflecting plate can rotate along the change of sunshine. The invention further discloses a method for converting solar energy into mesothermal heat energy by utilizing the solar thermal collector, so that the self tracking of sunshine can be realized, the problems of common tank type, tower type, butterfly type, Fresnel type thermal collection modes are high in cost, and incapable of combining with a factory building and the problem that the non-tracking focusing mode is small in focusing ratio can be solved, 4-20 times of solar focusing ratio can be realized, solar energy is efficiently converted into mesthermal heat energy to obtain a stable mesothermal heat source of 100DEG C-300DEG C.

The invention discloses a mine storage battery electric locomotive mounted charging and driving integrated circuit structure. The structure mainly comprises a storage battery, a supercapacitor, a first DC-DC converter, a second DC-DC converter, an inverter circuit and a driving motor; one end of the first DC-DC converter is connected with the storage battery in series, the other end of the first DC-DC converter is connected with the inverter circuit in parallel, one end of the second DC-DC converter is connected with the supercapacitor in series, the other end of the second DC-DC converter isconnected with the inverter circuit in parallel, and the output end of the inverter circuit is connected with the driving motor in series. When a mine storage battery electric locomotive is in the traction driving state, the storage battery and the supercapacitor supply power to the electric locomotive; when the mine storage battery electric locomotive is in the parking charging mode, the drivingmotor and the inverter circuit form a charging circuit of the electric locomotive. The problem that mine storage battery electric locomotive offline charging equipment is huge and low in charging efficiency is solved, and the mine electric locomotive charging and operation efficiency can be improved.

A power switch tube isolated gate drive circuit for a power converter comprises a pulse width modulation driver, an isolation driving transformer T, a blocking capacitor Cb, a capacitor C1, a diode D and a driven switch tube Q which constitute an isolated gate drive circuit in the prior art. According to the invention, on the basis of the above circuit, a resistor R1 in parallel with the capacitor C1 is additionally installed; a capacitor C2 is additionally installed to be in parallel connection with a resistor R2 and connected to a cathode of the diode D; after the capacitor C2 and the resistor R2 are in parallel connection, the other end of the capacitor C2 is connected between the capacitor C1 and a grid electrode of the driven switch tube Q. The capacitor C2, the resistor R2 and the diode D form a negative voltage source to provide a stable negative voltage in turn-off of the switch tube Q. Accidental switch-on of the switch tube in the switch-off process because of various crosstalks is prevented, and the reliability of the system is raised.

The invention discloses a fully suspended electric magnetic levitation vehicle. The electric magnetic levitation vehicle comprises a vehicle body, a magnetic wheel and a magnetic wheel driving motor.The magnetic wheel is arranged on the lower part of the vehicle body; The magnetic wheel driving motor is arranged in the middle of the magnetic wheel, and is used for driving the magnetic wheel to rotate, so that the magnetic wheel is suspended above the maglev lane, the maglev lane comprises a roadbed and a conductor plate laid on the roadbed, and drives the vehicle body to move in the extendingdirection of the conductor plate. By using the fully suspended electric maglev vehicle provided by the invention, the full suspension of the whole electric maglev vehicle can be realized, so that thewheel does not contact with the road surface, thus effectively reducing the wear of the wheel and prolonging the service life of the vehicle.

The invention provides a portable type large-variable-diameter all-wheel-drive type pipeline robot which comprises a front end plate, a rear end plate, a front rocker arm, a rear rocker arm, a scissor-type reducing mechanism and a positioning all-wheel-drive mechanism, wherein the positioning all-wheel-drive mechanism is arranged on the front end plate; the scissor-type reducing mechanism is arranged on the rear end plate; one end of the front rocker arm is hinged with the front end plate; the rear rocker arm is hinged with the rear end plate; the front rocker arm is hinged with the rear rocker arm to form a shears-fork structure; the scissor-type reducing mechanism is connected with the positioning all-wheel-drive mechanism; and the scissor-type reducing mechanism can slide relative to the positioning all-wheel-drive mechanism to drive the front rocker arm and the rear rocker arm to form shears-fork motion. According to the portable type large-variable-diameter all-wheel-drive type pipeline robot provided by the invention, when the reducing motor rotates, a nut pulls the front end plate to get close to a guide post or get away from the guide post, and scissor-type rocker arms which are synchronously fixedly arranged on the front end plate and the rear end plate open and close, so that a supporting radius of the robot is changed.

The invention relates to the field of tool rests for numerical control machines, particularly to a single servo power tool rest in which a single servo motor simultaneously drives indexing of a cutter head and drives power tools, solving the problems of transmission, power switching and the like of the tool rest. The single servo power tool rest is provided with a cutter head, a tool rest case body and a backseat cover, wherein the cutter head is used for installing a tool apron, and the backseat cover is arranged at one end of the tool rest case body; the other end of the tool rest case body is sequentially provided with a fixed fluted disc and a movable fluted disc; one ends of the fixed fluted disc and the movable fluted disc extend into the tool rest case body, the fixed fluted disc is fixed on the tool rest case body, and the outer end of the movable fluted disc which can rotate in the tool rest case body is connected with the cutter head; and a first rotating shaft, a second rotating shaft and a third rotating shaft are arranged in the tool rest case body. The indexing of the cutter head and the driving state switching of the tools are realized through the controlling of a hydraulic transmission system, the hydraulic transmission system controls the flow direction of hydraulic pressure by a reversing valve so as to realize the meshing and separation of an inner gear and a first shaft gear, the locking and detachment of locking fluted discs, and the meshing and separation of drive parts of the power tools.

The invention discloses a multi-functional dicer, and relates to the field of technical equipment for fruit dicing. The multi-functional dicer comprises two stand columns and a fixed frame mounted on the stand columns. A hopper is fixedly mounted on the fixed frame. A grid-shaped dicing knife is mounted in the hopper. A slideable slitting knife is arranged below the dicing knife. The tail of the slitting knife penetrates from the hopper. A mounting rack is mounted on the stand columns. A driving motor is mounted on the mounting rack. A screw rod is fixedly connected with an output shaft of the driving motor by means of a coupling. A nut matched with the screw rod is arranged on the screw rod. A connecting rod is hinged to the nut. The other end of the connecting rod is hinged to the tail of the slitting knife. A mounting plate is fixedly mounted at the upper ends of the two stand columns. A pushing cylinder is mounted on the mounting plate. A piston rod of the pushing cylinder penetrates the mounting plate downwards. A fixed plate is mounted on the piston rod of the pushing cylinder. A plurality of push rods disconnected with one another are arranged on the fixed plate. The multi-functional dicer has the advantages that dicing is uniform, manual operation is not needed, use is convenient, and the labor is reduced.

The invention discloses a control system and a method for a hub motor type electric balance car, wherein the control system comprises a vehicle-mounted terminal device and a visible multimedia control device; the vehicle-mounted terminal device comprises a first control module, a first wireless transmission module, a right hub motor driving module, a left hub motor driving module, an altitude detecting module, a pedal detecting module and a steering detecting module; the visible multimedia control device comprises a second control module, a second wireless transmission module, a touch screen and a data storage module; the touch screen is used for receiving a starting password of the electric balance car and a multimedia playing control signal and displaying operation state information of the electric balance car; and the vehicle-mounted terminal device and the visible multimedia control device interact information through the first wireless transmission module and the second wireless transmission module, so that the safety and the driving performance of the electric balance car can be improved.