38results about How to "Reduce external wiring" patented technology

The inverted pendulum of the two-wheeled remote-controlled trolley and its balance control method of the present invention are characterized in that two DC motors (3) are symmetrically fixed on the car body (1), one end of the motor shaft is fixedly connected to the wheel (2), and the other end of the shaft is connected to the wheel (2). The shafts of the code discs (4) are connected; the gyroscope (7) is installed in the middle of the axis of the two wheels and the pendulum (5) is fixed; the controller (11), the remote control receiver (13), the power conversion module (15), the motor The driver (12) is welded on the circuit board (10); the circuit board (10) and the DC power supply (6) are fixed on the vehicle body (1); its balance control method includes automatically judging the zero voltage, correcting its drift, and reducing the measurement noise. to filter. The present invention avoids the control failure of the existing inverted pendulum due to mechanical transmission failure or possible errors caused by the transmission gap; it can walk back and forth, left and right, and remote control on the ground and slopes, can be used for teaching and scientific research, and can more effectively test various pendulums. Pros and cons of control algorithms.

The invention discloses an interactive slide rail display system, belongs to the technical field of interactive display devices, and aims to provide the interactive slide rail display system capable of integrating a controller in a display and convenient to install and use. The invention provides the technical scheme points that the interactive slide rail display system comprises at least one display device and a slide rail, wherein an installation frame for installing the display device is arranged on the slide rail; a telescoping mechanism capable of stretching out and drawing back a movingscreen is arranged between the installation frame and the moving screen; an installation mechanism for connecting the telescoping mechanism and the moving screen is arranged between the telescoping mechanism and the moving screen; a drive device for driving the installation frame to move on the slide rail is arranged between the slide rail and the installation frame; the display device comprises the moving screen and a controller integrated into the moving screen; displacement sensors are arranged at two ends of the slide rail; and the displacement sensors and the drive device are electricallyconnected with the controller. Through integrating the controller in the display screen, the external wire connection can be reduced, and the interactive slide rail display system is simple to install and debug, and is convenient to maintain in the later period at the same time.

The invention provides a driving and motor integration machine for a wind power generation variable propeller system. The driving and motor integration machine comprises a driving portion and a motorportion. The driving portion and the motor portion are connected with each other. A driving circuit, a switch power source and a control circuit are integrated on the driving portion. A permanent magnet synchronous motor, a motor brake, a position / speed sensor and a KTY temperature sensor are integrated on the motor portion. The driving signal output end of the control circuit is connected to thedriving signal input end of the driving circuit, and the driving signal output end of the driving circuit is connected to the driving signal input end of the permanent magnet synchronous motor. The motor brake is connected to a brake interface of the control circuit, the speed sensor is connected to an encoder interface of the control circuit, and the KTY temperature sensor is connected to a temperature sensor interface of the control circuit.

The invention relates to an electrical structure of a solid combination switch which can switch automatically; a three-phase system busbar incoming line is connected with a series reactor, the line outgoing from the reactor is connected with a capacitor, the outgoing line end of an A-C phase capacitor is connected with two groups of thyristor valve strings, the valve strings are connected with a contactor in parallel and then are short-connected with the outgoing line of a B-phase capacitor; a wall feed-through sleeve, a bus connecting copper bar, a thyristor valve string, an insulator, a thyristor valve high potential electric board (TE board), a TE board energy delivery power supply, a high-frequency converter, a high-voltage cable, an energy delivery magnet ring transformer, a vacuum contactor, a valve base electronic device (VBE), a regulating unit and a man-machine interface part are integrated together by an equipment cabinet, the equipment cabinet can be directly hung a high-voltage electric power system, so as to ensure the insulation of high-low voltage systems; in addition, the contact can be switched at the zero crossing point under the reactive power condition of the system, and the solid combination switch can be operated on the equipment cabinet in the running process.

The invention discloses a LED display video transmission method, which relates to the technical field of video data transmission. A master LED display module and a slave LED display module are arranged on an LED display screen, and a plurality of master LED display modules are cascaded to form a row for data transmission. Transmission, each master LED display module and at least one slave LED display module are cascaded through Ethernet to form a column for data transmission; after the video source data input from the outside is processed by the sending device, one channel of video source data is sent to the current level The receiving device in the main LED display module performs processing, and the other video source data is sent to the sending device in the next-level main LED display module for processing; this method decentralizes the video sending function and improves the stability of the display effect. At the same time, the data between the various display modules will not produce delay jitter and line interference, and there will be no phenomena such as display asynchrony or screen tearing.

The invention relates to a box of a valve-base electronic (VBE) device which is capable of automatically switching on and off a solid-state complex switch. The VBE device needs to be externally connected with both a secondary 100V AC synchronous signal for a three-phase voltage transformer and a control system for a 220V DC power. After an operating switch spanner is operated to enable the VBE device to operate automatically, the VBE device can automatically switch on and off a parallel capacitor set when the system needs to supplement or switch off the capacitive reactive power. After the operating switch spanner is operated to enable the VBE device to be operated manually, the solid-state complex switch can be switched on and off simultaneously without arcing by using a switching on andoff spanner and an integrated automation system in the station.

The invention provides a circuit of in-pace rotary knobs of an electric actuator. The circuit of the in-pace rotary knobs of the electric actuator comprises a casing, a main control module and a rotary knob module, wherein the outside of the casing is provided with the in-pace control rotary knob and the in-pace operation rotary knob, and the in-pace control rotary knob and the in-pace operation rotary knob are both provided with magnets; the main control module comprises a micro-control unit, a power supply control unit controlled by the micro-control unit and a first plug-in module with 5 ports, and the power supply control unit is provided with a first end, a second end and a third end; the rotary knob module is arranged inside the casing and is connected with the main control module through an external connecting wire, the rotary module is provided with a second plug-in unit with a first port, a second port, a third port, a forth port and a fifth port, the first port, the second port, the third port and the forth port are respectively connected with a reed switch used for sensing the position of the magnets. The circuit of the in-pace rotary knobs of the electric actuator can improve detection means and judging functions of an electric actuator reduce installation and material costs and probability of fault points and improve reliability of the control circuit.

The invention discloses an aerostat cable retracting experiment system based on Profinet communication. 1. A cable storage winch and a control system for storing cables, one end of the cable is tied to the load winch, and then bypasses the force measuring pulley, the traction winch and the cable discharge mechanism in turn, and is tied to the cable storage winch; the control system is connected with the cable storage winch respectively. The load winch, traction winch, cable discharge mechanism and cable storage winch are connected and their running states are controlled respectively. The invention utilizes a load winch that can provide load changes to overcome the limitations of the traditional tower suspension heavy load test, uses the load winch to realize the verification of cable discharge speed and operating characteristics under full load conditions, and can simulate the load change of the aerostat.

A drive controlling system of electric locomotive for mining shaft is composed of a rechargeable supper capacitor set as power supply, a single switching magnetoresistance motor as the drive motor, an energy controller for quickly recovering the regenerated electric energy to said super capacitor set when the electric locomotive is braking and is in electric generation state, a motor controller, and a master controller communicated via CAN but to said motor and energy controllers.

The logic controller for railway locomotive consists of main control board, input board, output board and power supply board, and features the bi-directional CAN bus communication among the control board, the input board and the output board, and the MOS FET driving between the output board and the electric device of the locomotive to be controlled. The present invention adopts embedded monochip computer system, CAN bus technology, and cured combination logic software in PLC logic ladder diagram structure easy to read and understand. Adopting logic control unit can simplify the design, production and debugging of locomotive control circuit, and raise the reliability of the control system. In addition, the microcomputer and electronic control system has vibration resistance obviously superior to traditional relay contact control system.