44results about How to "Reduce maximum power" patented technology

The exemplary embodiments describe a method for use in a user equipment (700), a method for use in a radio base station (600); a user equipment (700) and a radio base station (600). According to the exemplary embodiments, the user equipment (700) is configured to decide on application or not of a power reduction and to indicate it decision in a power headroom report intended for transmission to the radio base station (600). The radio base station (600) is configured to receive the power headroom report and based on the indicated information in the received power headroom report, the base station in made aware of an additional or special power backoff (e.g. to fulfill SAR requirements) has been applied and thereby able to distinguish it from normal power backoff or power reduction.

The invention provides a friction type anti-loosening structure of an underwater clamp connector. The friction type anti-loosening structure comprises a clamp handle, a clamp handle fixing plate, a clamp handle rotating block, a threaded rod, a threaded sleeve, a torsion joint, a guide plate and a pressing plate. Reticulated knurling is arranged on the contact surfaces of the clamping handle and aclose bolt of the clamp connector, so that the friction coefficient of the clamping handle and the close bolt is increased; a lug is arranged outside the threaded sleeve and capable of limiting the circumferential direction and the axial movement of the threaded sleeve through being assembled and rotated by a certain angle with a shell plate of the connector, so that the linear movement of the threaded rod is ensured; when the threaded sleeve and the threaded rod are rusted and cannot be screwed off, a remote control robot carries a manipulator to axially pull the threaded rod out of one sideof a pressing plate of the shell plate, wherein the pressing plate plays a limiting role, and the pressing plate can be pulled off so that a locking device and the close bolt can be separated; the guide plate is used for limiting the rotation of the clamp handle; and the torsion joint is provided with an interface combined with a torsion wrench, and a ROV carries the torsion wrench to realize therotation of the threaded rod, so that the pressure of the clamp handle and the close bolt is provided, and the anti-loosening purpose is finally realized.

The invention provides a method and a device for resource authorization. The method includes the steps: determining the size of an initial MAC-e PDU (protocol data unit) according to a scheduling request of a user terminal; acquiring capacity information of the initial MAC-e PDU; inquiring a pre-generated MAC-e PDU capacity information sheet and acquiring the minimum usable MAC-e PDU with capacity information as same as that of the initial MAC-e PDU as an authorized MAC-e PDU; including the sizes of all usable MAC-e PDUs and the capacity information of each usable MAC-e PDU in the MAC-e PDU capacity information sheet; and issuing the authorized MAC-e PDU and power authorization corresponding to the authorized MAC-e PDU to the user terminal. By the aid of the technical scheme, the power of UE (unified equipment) can be more reasonably authorized, MAC-e PDU resources can be more reasonably distributed, and waste of the MAC-e PDU resources and power resources is decreased.

The exemplary embodiments describe a method for use in a user equipment (700), a method for use in a radio base station (600); a user equipment (700) and a radio base station (600). According to the exemplary embodiments, the user equipment (700) is configured to decide on application or not of a power reduction and to indicate it decision in a power headroom report intended for transmission to the radio base station (600). The radio base station (600) is configured to receive the power headroom report and based on the indicated information in the received power headroom report, the base station in made aware of an additional or special power backoff (e.g. to fulfill SAR requirements) has been applied and thereby able to distinguish it from normal power backoff or power reduction.

The invention discloses a wireless communication transceiver system. The wireless communication transceiver system comprises a wireless transceiver unit, a receiving processing unit, a sending processing unit, a duplexer and a transceiver antenna, wherein both the receiving processing circuit and the sending processing circuit are connected with the duplexer; and the duplexer is connected with the transceiver antenna to receive and send the wireless signal; a sending access of the duplexer is a low-pass filter which can improve insertion loss, so that the power consumption is saved, simultaneously, the maximum power to be output by a power amplifier in the receiving processing circuit and the sending processing circuit is reduced, thus the terminal heat dissipation is reduced.

The invention belongs to the technical field of power control systems for engineering machinery, and discloses a quick response power system for the engineering machinery. The quick response power system comprises an executing mechanism and a power quick response unit; the executing mechanism is composed of an oil cylinder, a work hydraulic pump, three three-position four-way reversing valves and three hydraulic cylinders; the power quick response unit is composed of an energy accumulator, a first solenoid reversing valve, a safety valve, a second solenoid reversing valve, an oil cylinder, a one-way valve, a power hydraulic pump, an electromotor, a motor frequency converter, a control unit and a pressure sensor. According to the invention, the rotation speed of the hydraulic pumps can be timely, quickly and efficiently regulated according to the specific change conditions of the pressure of hydraulic components, the energy utilization rate can be increased, and the rated power provided by a hydraulic machinery power system, namely the rated power of the electromotor can be lowered.

The invention discloses an extra-large type geotechnical centrifuge loading separable design. The extra-large type geotechnical centrifuge loading separable design adopts two engine bases; a high-speed bearing is adopted by the small engine base to meet the demands of high rotation speed and a big g value; and a low-speed heavy loading bearing is adopted by the big engine base to meet the demands of low speed and heavy loading, so that the separation of high speed and heavy loading is realized. Two rotating arms are mounted on a main shaft system of the same driving motor; and the two rotating arms are linked with each other through a hydraulic pressure linking device, so that time-sharing work or simultaneous work of the two rotating arms is realized. Instrument cabins are mounted on main shafts and each instrument cabin is not in contact with each rotating arm; break-make and supply of fluid, signals and a power source are achieved just through pipe connectors and cable connectors; and connecting or disconnecting is guaranteed according to the experiment need, so that separation and fastening of each rotating arm relative to the main shafts are realized. One driving motor is adopted, under the working conditions of full loading of the big rotating arm in low speed and heavy loading and full loading of the small rotating arm in high speed and light loading, motor power needed by the big rotating arm and the small rotating arm is consistent, ability of the motor is brought into full play, the maximum power of the motor is reduced, and developing and using cost is reduced.

The invention relates to oil development equipment, in particular to a pulley drive balance type lifting system for a drilling machine in the mechanical field of drilling machines. According to the pulley drive balance type lifting system for the drilling machine, hook load is balanced by a balancing box so as to reduce the maximum driving force based on a pulley drive principle. The pulley drive balance type lifting system for the drilling machine has the advantages that 1) energy is saved, and the maximum power can be reduced; the maximum drive power can be reduced effectively by a balance mode according to a movable pulley drive principle; theoretically, under the conditions of the same hook load and the same lifting speed, compared with the conventional drilling machine, the pulley drive balance type lifting system has the advantages that the maximum power can be reduced by 50 percent, and the system has obvious effects of clipping peaks and saving energy; 2) the labor intensity of operation staff can be reduced; and the balancing box has the function of an elevator type load box, so that operation staff can be lifted on a derrick of the drilling machine conveniently, and objects such as tools can be conveyed conveniently.

The invention provides a frictional anti-loosening structure of an underwater clamp connector, which includes a clamping hand, a clamping plate, a clamping rotary block, a threaded rod, a threaded sleeve, a twist joint, a guide plate, and a pressure plate. There is knurling on the contact surface between the hand and the clamp connector, which can increase the friction coefficient between the hand and the bolt. The circumferential and axial movement of the threaded sleeve can ensure the linear movement of the threaded rod; when the threaded sleeve and the threaded rod are rusted and cannot be unscrewed, the remote control robot carries the manipulator to axially pull the threaded rod out from the side of the shell plate pressure plate , where the pressure plate acts as a limiter, which can pull the pressure plate off to ensure that the locking device and the pull-in bolt can be separated; the function of the guide plate is to limit the rotation of the card hand; the twist joint is equipped with an interface combined with a torque wrench, and is carried by ROV The torque wrench realizes the rotation of the threaded rod, thereby providing the pressure to clamp the hand and pull the bolt closer, and finally achieve the purpose of anti-loosening.

Uplink transmit power adjustment is provided by the mobile device receiving an uplink transmission grant from the serving base station. The mobile device determines a maximum power reduction and a SAR-related power reduction for uplink transmissions. The mobile device compares these values ​​and adjusts the transmit power according to the SAR related power reduction in response to the SAR related power reduction exceeding the maximum power reduction. A power headroom report is generated when the determined SAR related power reduction exceeds a previous SAR related power reduction. Under various conditions, the power headroom report is sent from the mobile device to the serving base station.

The invention provides a method and a device for resource authorization. The method includes the steps: determining the size of an initial MAC-e PDU (protocol data unit) according to a scheduling request of a user terminal; acquiring capacity information of the initial MAC-e PDU; inquiring a pre-generated MAC-e PDU capacity information sheet and acquiring the minimum usable MAC-e PDU with capacity information as same as that of the initial MAC-e PDU as an authorized MAC-e PDU; including the sizes of all usable MAC-e PDUs and the capacity information of each usable MAC-e PDU in the MAC-e PDU capacity information sheet; and issuing the authorized MAC-e PDU and power authorization corresponding to the authorized MAC-e PDU to the user terminal. By the aid of the technical scheme, the power of UE (unified equipment) can be more reasonably authorized, MAC-e PDU resources can be more reasonably distributed, and waste of the MAC-e PDU resources and power resources is decreased.

The invention provides a bilateral motor-drive tracked vehicle steering system which comprises a control system, a power system and a mechanical system. The mechanical system comprises a driving motor, a brake and a speed reducer, wherein the speed reducer is connected with a vehicle driving wheel. The mechanical system further comprises a steering motor controller, a steering motor, a controllable differential, a clutch and a coupler, wherein the steering motor controller, the steering motor, the controllable differential, the clutch and one input end of the coupler are connected sequentially, another input end of the coupler is connected with the driving motor, the output end of the coupler is connected with the brake, and the steering motor controller, the controllable differential and the clutch are further connected with the control system. The steering motor is arranged in the mechanical system, torque supplied by the steering motor and the driving motor is coupled through the coupler, the maximum power of the driving motor can be reduced, and the power of the driving motor is fully utilized.

A power management circuit for a remote access platform extracts power from a wireline for powering a ring generator that generates a ringing voltage signal that is distributed to a plurality of subscriber circuits. A power-limited voltage converter steps up the wireline voltage to a higher ‘isolating’ voltage, charging a capacitor coupled to the ring generator. A monitor circuit reduces the power that the power-limited voltage converter can draw, if the wireline voltage drops too low. This prevents the wireline voltage from collapsing should the remote terminal be deployed at a distance from wireline voltage source (the central office) greater than its specified capability.

The invention discloses an energy management system for a fuel cell hybrid electric locomotive, which comprises a unidirectional DC / DC converter based on a DC / DC conversion module and cascaded with a fuel cell power generation system, a DC / DC conversion module based on a DC / DC conversion module and connected with a battery pack level A bidirectional DC / DC converter connected to the system, a bidirectional DC / DC converter based on a DC / DC conversion module and cascaded with a super capacitor bank, a braking resistor unit, an energy management unit, a voltage acquisition circuit, a current acquisition circuit and a load interface. The invention realizes the braking energy recovery according to the demand of the traction motor, the output characteristics of the fuel cell, and the electrical characteristics of the battery pack and the super capacitor pack. The present invention is a fuel cell hybrid locomotive energy management system based on a DC / DC conversion module. The present invention makes the fuel cell work in a "high hydrogen efficiency mode", maintains the state of charge of the battery within a certain range, and can prolong the service life of the battery .