54results about How to "Realize two-way control" patented technology

The invention relates to a vehicle-mounted equipment and mobile phone integral system based on Bluetooth transmission. The system comprises an in-vehicle information network system and a mobile Internet system, wherein the in-vehicle information network system comprises an ECU (Electronic Control Unit) module, a vehicle-mounted equipment Bluetooth module, a vehicle-mounted equipment man-machine interaction module and an automobile electrical appliance; the ECU module is used for receiving data or an instruction of a mobile phone, and executing the mobile phone instruction or sending an instruction to the mobile phone in response to the command in order to realize connection of the mobile phone with the vehicle-mounted equipment; the vehicle-mounted equipment Bluetooth module is taken as an information exchange medium of the vehicle-mounted equipment; the vehicle-mounted equipment is connected with the mobile phone through the vehicle-mounted equipment Bluetooth module; the vehicle-mounted equipment is used for controlling the mobile phone through the vehicle-mounted equipment man-machine interaction module; the ECU module is used for acquiring running parameters of the automobile electrical appliance through a CAN (Controller Area Network) bus. The vehicle-mounted equipment, network information acquisition through the automobile CAN bus, high-fidelity sound playing, APP application of a smart phone platform and mobile Internet technology application are organically combined to upgrade a low-cost vehicle-mounted electrical appliance, and good user experience is formed.

The invention discloses a method and a device for realizing bilateral control of a television terminal. In the method of bilateral control, communication connection is established between the television terminal and a control terminal through a communication interface; and a control command is sent by the control terminal according to the set communication protocol, and is transmitted to the television terminal through the communication interface; the control command is sent by the television terminal according to the set communication protocol, and is transmitted to the control terminal through the communication interface, thus realizing the bilateral control of the television terminal, and expanding the control mode and application range of the television terminal.

The invention provides an intelligent terminal screen sharing method and system based on a vehicle-mounted terminal, and the vehicle-mounted terminal. The method comprises the following steps: synchronously obtaining a screen image of the intelligent terminal in real time; based on the resolution of the vehicle-mounted terminal and the resolution of the intelligent terminal, displaying the screenimage on the vehicle-mounted terminal according to a preset proportion; obtaining a corresponding relation between the coordinate points on the display screen image and the coordinate points on the intelligent terminal screen; and sending click information for a certain coordinate point on the display screen image to a corresponding coordinate point on the intelligent terminal screen, so that theintelligent terminal executes a corresponding operation for the click information. According to the intelligent terminal screen sharing method and system based on the vehicle-mounted terminal and thevehicle-mounted terminal, checking of at least one intelligent terminal screen and control over operation of the intelligent terminal can be achieved on the vehicle-mounted terminal, and the user experience is greatly improved.

The invention discloses a magnetorheological fluid two-way damping regulating valve. The magnetorheological fluid two-way damping regulating valve comprises a piston rod, an upper end cover, a lower end cover, a squeezing valve assembly, a damping regulating mechanism, a piston valve system, and a working cylinder. The squeezing valve assembly comprises a valve core, a squeezing valve body, a squeezing valve base, excitation coils, magnetorheological fluid, and magnetic isolation rings. The damping regulating mechanism comprises the valve core, sliding blocks, sealing rings, sliding block return springs, sliding block supporting rods, and damping openings; the upper end cover matches with the lower end cover in a threaded mode and the damping opening C is thereby formed. The size of the damping opening C can be manually adjusted via threads on the upper end cover and the first adjustment of damping force is thereby realized. In the moving process of the valve core, the viscosity of themagnetorheological fluid is controlled by a magnetic field to adjust the resistance force on the valve core, so the displacement of the valve core is controlled; the flow area of two damping openingsis then adjusted via the sliding blocks to realize damping stepless adjustment; and the second adjustment of damping force is thereby realized. The magnetorheological fluid two-way damping regulatingvalve can be applied to single-cylinder and dual-cylinder vibration absorbers and can realize active control and damping stepless adjustment of the vibration absorbers.

The invention discloses a remote control circuit breaker. The remote control circuit breaker comprises a circuit breaker body, a manual operation rod, a spring manipulation mechanism, a fixed contact, a movable contract and a connection arm for fixing the movable contract; meanwhile, the remote control circuit breaker further comprises a driving unit and a transmission assembly, which are used for remote control. Under the coordination of the driving unit and the transmission assembly, a relative position of the movable contact and the fixed contact can be controlled to change, so that bidirectional control for performing remote switching-on and remote switching-off on the circuit breaker can be realized. Meanwhile, the remote control circuit breaker provided by the invention is additionally provided with a second micro-switch; remote switching-on and remote switching-off become invalid when manual switching-off is triggered through switching off the second micro-switch, so that the maintenance security in manual operation can be ensured.

The present invention relates to a current pulse generation method. The method comprises the steps of: employing an energy storage capacitor to store energy, wherein energy required by an ascent stageof current waveform pulses is supplied by the energy storage capacitor; and returning energy stored in a magnet load inductor at a descent stage of the current waveform into the energy storage capacitor to be prepared for the next pulse so as to achieve repeat utilization of the energy. The full energy storage mode is employed to specifically solve the main problem of the high excitation power supply of the pulse power supply of a particle accelerator.

The invention relates to a self-control two-way direct-current low-voltage electric temperature control valve, and belongs to the technical field of water heating valves. The valve is characterized in that: a main valve and a branch valve are pilot valves; a piston on a valve core controls the closing of a pressure relief opening; a main water outlet in the valve is opened or closed by the piston through a water pressure difference; the water inlet of the branch valve is connected with a valve body; the water outlet of the branch valve can be connected with the water outlet of the main valve, and also can form an independent system; and control boxes are control mechanisms which are arranged above the main valve and the branch valve and work according to programs.

The invention discloses a current drive of a tripolar magneto-rheological damper. The current drive comprises a current feedback circuit, a control circuit, an MOS transistor driving circuit, a full-bridge circuit and a current feedback circuit. Voltage applied to the two ends of the damper coil is controlled through three modes, so that the purposes of rapidly following expected current and reducing steady-state current fluctuation quantity are achieved.

The invention belongs to vehicle driving and controlling device, particularly relates to a coal mine well vehicle rotation operation and control unit and solves the problems that the height and space of a cab is limited by the roadway, a driver is difficult in turning and head turning, the driving difficulty is high and safety accidents are prone to occurrence. A vehicle operation and control system is integrated with one unit of the cab intensively, the vehicle operation flexibility is not affected, the bidirectional operation and control of the vehicle is implemented smoothly, and the problems that on serious well roadway condition, lateral driving is prone to fatigue during long distance conveying and the forward driving is poor in vision when the vehicle steers frequently during operation are solved.

The invention discloses a magnetorheological fluid two-way damping regulating valve. The magnetorheological fluid two-way damping regulating valve comprises a piston rod, an upper end cover, a lower end cover, a squeezing valve assembly, a damping regulating mechanism, a piston valve system, and a working cylinder. The squeezing valve assembly comprises a valve core, a squeezing valve body, a squeezing valve base, excitation coils, magnetorheological fluid, and magnetic isolation rings. The damping regulating mechanism comprises the valve core, sliding blocks, sealing rings, sliding block return springs, sliding block supporting rods, and damping openings; the upper end cover matches with the lower end cover in a threaded mode and the damping opening C is thereby formed. The size of the damping opening C can be manually adjusted via threads on the upper end cover and the first adjustment of damping force is thereby realized. In the moving process of the valve core, the viscosity of themagnetorheological fluid is controlled by a magnetic field to adjust the resistance force on the valve core, so the displacement of the valve core is controlled; the flow area of two damping openingsis then adjusted via the sliding blocks to realize damping stepless adjustment; and the second adjustment of damping force is thereby realized. The magnetorheological fluid two-way damping regulatingvalve can be applied to single-cylinder and dual-cylinder vibration absorbers and can realize active control and damping stepless adjustment of the vibration absorbers.

The invention discloses a topological DC power flow controller based on an MMC converter station, belonging to the field of electric power technology. Each single-port output terminal of the power flow controller is connected to a DC positive pole, and each single-port output terminal of the lower arm power flow controller is connected to a DC negative pole; the single-port power flow controller includes a three-phase multi-stage full-bridge circuit sub-module group, each The one-phase full-bridge circuit sub-module group is connected in series with the filter inductor, and the in-phase bridge arm of the topological DC power flow controller is directly connected with the in-phase bridge arm of the MMC converter station. The topology of the invention is simple, no additional transformers or passive devices are required, and the bidirectional control of the DC power flow is realized.

A method for improving channel utilization in overlapping coverage areas belongs to the technical field of communications. The invention aims to solve the problem that the called side cannot be processed in the existing method for using channels in overlapping coverage areas. It is assumed that terminal UE1 is attached to base station BS1, terminal UE2 is attached to base station BS2, and terminal UE3 is attached to base station BS3. Both terminal UE1 and terminal UE2 belong to group Group1, and terminal UE1 and terminal UE2 are located between base station BS1 and base station BS2. In overlapping coverage areas; the method of the present invention includes one of the following two forms or a combination of the two forms, the first form includes a single call calling side call processing method and a single call called side call processing method; the second The two forms include the call processing method of the calling side of the group call and the call processing method of the called side of the group call. The invention is used to improve the channel utilization rate in overlapping coverage areas.

The invention provides a bidirectional isolation type DC / DC converter and a control method thereof. The bidirectional isolation type DC / DC converter comprises at least two LLC resonant converter units; each LLC resonant converter unit comprises two switching networks and a resonant unit; each resonant unit comprises a resonant capacitor, a resonant inductor and a transformer, a first interface of the first switching network is connected in series with the resonant capacitor, the resonant inductor and one winding of the transformer and then is connected to a second interface of the first switching network, and two ends of the other winding of the transformer are respectively connected with two interfaces of the second switching network; and all the LLC resonant converter units are divided into two types, the first switching networks of all the first-class LLC resonant converter units are connected in series with the second networks of all the second-class LLC resonant converter units, and the second switching networks of all the first-class LLC resonant converter units are connected in parallel with the first networks of all the second-class LLC resonant converter units. Bidirectional gain and efficiency consistency and smooth power commutation can be realized.