2255results about How to "Slow down" patented technology

A power and control architecture employing circuitry that sequentially regulate power flows from independent solar-array sources or a mixture of power sources providing power to a common load. The device may be used on a satellite with solar-array sources; however it may also be used on ground based systems. Stiff bus voltage regulation is obtained by tightly controlling the most recently activated power-processing channel while keeping the previously activated power-processing channels in the Maximum Power Tracking mode to supply maximum power to a common load. The remaining power-processing channels are turned off or operated in stand-by mode. In an alternative system, with primary design goal of uniform power sharing among solar-array sources, all solar array sources are activated with uniform power sharing at light load and, as load demand increases, sequentially controlled to operate in the Maximum Power Tracking mode one solar array source at a time as necessary.

The invention discloses an anti-misoperation type cutting stapler which comprises a nail pressing seat, a nail bin, a bracket and a nail pushing device, wherein a plurality of suturing nails are arranged inside the nail bin; the bracket takes a supporting effect on an assembly; the nail pushing device is used for pushing the suturing nails in the nail bin; the nail pushing device comprises a pushing plate, a nail pushing sledge and a nail pushing particle; the nail pushing particle inside the nail bin directly acts on the suturing nails; the nail pushing sledge is initially positioned in an initial position of the nail bin; the front part of the nail pushing sledge pushes the nail pushing particle and a hasp bridged with the front end of the pushing plate is arranged at the rear part of the nail pushing sledge; the rear end of the pushing plate is connected with a sliding block; a locking boss is formed in the front part of the pushing plate; the bracket between the locking boss and the nail pushing sledge is provided with a clamping groove; a pushing plate spring sheet is arranged on a guide block. When the stapler is in an initial state, the pushing plate is pushed forwards, the front end of the pushing plate is bridged with the rear part of the nail pushing sledge, the locking boss passes through the clamping groove, the pushing plate pushes the nail pushing sledge to reach the front end of the nail bin, the nail pushing sledge is clamped by the nail pushing particle to stay at the front end of the nail bin, and the pushing plate is reset backwards; when the pushing plate is pushed again, the pushing plate cannot be bridged with the nail pushing sledge, the pushing plate spring sheet presses down the pushing plate, the locking boss falls into the clamping groove and the pushing plate is locked. The structure can prevent the empty nail bin from being pushed by mistake.

A safety and recovery system for an unmanned aerial vehicle including a parachute holder mountable to the aerial vehicle. A parachute is disposed in the parachute holder. An actuator is engaged with the parachute holder. A flight sensor is in communication with the actuator, the flight sensor programmed to detect one or more predetermined emergency flight conditions, and transmit an emergency signal when the flight sensor detects one of the predetermined emergency flight conditions. The actuator deploys the parachute from the parachute holder when the actuator receives the emergency signal from the flight sensor. Autonomous deployment of the parachute can help minimize damage to the aerial vehicle, equipment on the aerial vehicle, or objects or persons beneath the aerial vehicle, in the event of an emergency.

An atomic vapor cell apparatus and method for obtaining spin polarized vapor of alkali atoms with relaxation times in excess of one minute is provided. The interior wall of the vapor cell is coated with an alkene-based material. The preferred coatings are alkenes ranging from C18 to C30 and C20-C24 are particularly preferred. These alkene coating materials, can support approximately 1,000,000 alkali-wall collisions before depolarizing an alkali atom, an improvement by roughly a factor of 100 over traditional alkane-based coatings. Further, the method involves a combination of one or more of the following: the use of a locking device to isolate the atoms in the volume of the vapor cell from the sidearm used as a reservoir for the alkali metal vapor source, careful management of magnetic-field gradients, and the use of the spin-exchange-relaxation-free (SERF) technique for suppressing spin-exchange relaxation.

The invention relates to a target localization and tracking system and a method. The system comprises a plurality of cluster localization modules and command control modules, each cluster localizationmodule comprises a plurality of sensor nodes and cluster head nodes, and each cluster head node comprises an initialization module, a particle filtration module, a particle weight calculation module,a re-sampling determination module and an estimation target state module. The method which combines Kalman and particle filtration is adopted for realizing the passive localization of a target, and the computation speed is far lower than the particle filtration method on the basis of realizing high-precision localization; the localization and the track of the target is finally realized by adopting multiple sensors and being based on the observation of the direction of the target, thereby being capable of overcoming the constraint that the traditional machine-mounted or ship-mounted single station system must carry out motorization during the observation period, having no need of observing the motorization of a platform, improving the flexibility of target localization, greatly increasingthe area of a region of target monitoring localization, avoiding the shortcoming of existence of localization blind regions and having very high effectiveness, accuracy and feasibility.

The invention relates to an operating robot comprising a base, a first arm, a second arm, a main shaft, an oscillating arm, a first rotary joint, a second rotary joint, a third rotary joint and a fourth rotary joint. The base is connected with a first arm shaft through the first rotary joint; the first arm is connected with a second arm shaft through the second rotary joint; the second arm is connected with the main shaft through the third rotary joint; the main shaft is connected with an oscillating shaft through the fourth rotary joint; at least one of the first rotary joint, the second rotary joint, the third rotary joint and the fourth rotary joint comprises a motor and a speed reduction box, wherein the speed reduction box is connected with the motor and is used for decreasing the rotation speed outputted by the motor, increasing the moment of force and driving the first arm, the second arm, the main shaft or the oscillating arm to move, and the motor is used for supplying power. The components of the novel operating robot are connected into a whole body by the four rotary joints, thus the novel operating robot has simple structure. In addition, the motor of the rotary joint is matched with the speed reduction box to control, thus the operating robot is easy to operate.

A salad, rice and other foods washer and spinner includes an angled bowl and cover with a cranking handle that turns a basket and basket lid inside the bowl via a gear set. A twin speed gear set is disclosed which allows a different velocity of spin when the cranking handle is turned in one direction than when it is turned in the other direction. A bowl is angled with respect to a base member and a covering lid includes water inlet on a higher side of the lid that allows water from a faucet or jug to be directed through the cover and onto the basket lid where it is dispersed into the basket volume via holes in the basket lid, with water escaping, if desired through an outlet grille.

The invention discloses an urban microscopic traffic flow simulation system based on a cellular machine, which comprises a simulated inner core, an initialization model, a human-computer interaction model, a database management system and an induction and control coordination system. The initialization model consists of a road network generating model, a vehicle generating model and a control and induction device generating model; the simulated inner core consists of a vehicle running model and a control and induction device running model; and the human-computer interaction model is in charge of the setting of a user on various parameters in the simulation system and the screen display work of a whole traffic network. The invention researches the overall design of the urban microscopic traffic flow simulation system, various running rules of vehicles at different road network positions and other necessary component parts for constructing the simulation system, mainly starts with the realization of the whole microscopic traffic flow simulation system to provide an overall framework of program running, and carries out corresponding simplification for certain complex independent parts so that the realization of the system is more feasible.

The embodiment of the invention provides a task processing method and system. A task to be processed is dismantled into multiple sub tasks, the sub tasks are distributed to task processing nodes, after the task processing nodes receive the sub tasks, whether the number of the sub tasks which are processed currently is not lower than a preset number threshold value is determined, if the number of the sub tasks which are processed currently is not lower than the preset number threshold value, processing rejection information to the sub tasks is fed back to task allocation nodes, and after the task allocation nodes receive the processing rejection information, the sub tasks are allocated to the task processing nodes which do not feed back processing rejection information to the sub tasks. In this way, when the sub tasks allocated to a certain task processing node are many, the task processing node can reject processing of subsequent allocated sub tasks, the task allocation nodes allocate the sub tasks rejected by the task processing node to other task processing nodes, balance of the number of the sub tasks of the task processing nodes is achieved, the situation that the operation speed of the task processing nodes is reduced due to the fact that the sub tasks are too many is avoided, and the situation that resources are wasted due to the fact that the sub tasks are too few is also avoided.

The invention discloses a control method for motion stability and outline machining precision of a multi-shaft linkage numerical control system. The control method achieves control on the motion stability and outline machining errors of the multi-shaft linkage numerical control system by using a compound control mode of multi-shaft parameter module predictive control and non-linear self-adaptive fuzzy proportional-integral-derivative (PID) control. Simultaneously, error module calculating efficiency is improved by building an outline error module, a speed error module and an acceleration error module. By means of performance optimization indexes, tracking errors, outline errors, speed errors and acceleration errors of the system are minimum, and control performance of a multi-shaft servo control system is improved. Multi-shaft parameter module predicative control increment is solved through a simplified calculating module so as to meet real-time requirements of the control system. Robust property of the multi-shaft linkage numerical control system is improved by adopting the non-linear self-adaptive fuzzy PID control method. The control method effectively improves the motion stability and outline machining precision of the multi-shaft linkage numerical control system.

There is disclosed an apparatus for implementing special mode playback operations in a digital video recorder. The apparatus comprises an Intra frame indexing device capable of receiving an incoming MPEG video stream and identifying therein data packets associated with Intra frames, wherein the Intra frame indexing device modifies header information in a first data packet associated with a first Intra frame to include location information identifying a storage address of a second data packet associated with a second Intra frame.

The invention relates to a load follow-up loading system for plane flap reliability tests. The system comprises a bearing wall. The system is characterized by further comprising a support component, a load loading adjusting unit and a load detection and adjusting unit, wherein a flap is mounted on a wing; the root of the wing is mounted on the bearing wall; the support component comprises two vertical columns and a transverse beam for supporting the load loading adjusting unit and the load detection and adjusting unit; the load loading unit comprises a moment motor and a steel rope; the moment motor is arranged on the support component and is used for exerting an action force on the flap; the steel rope is connected with the moment motor; the load detection and adjusting unit comprises an angle sensor, a sliding track component and a pulley component. A plurality of loading points are arranged on the surface of the flap, one loading point corresponds to one set of loading system, the size, the direction and an equivalent action point of real-time flap surface aerodynamic force can be simulated.

The invention relates to an energy saving system of a belt conveyor and an energy-saving control method of the energy saving system of the belt conveyor. The energy saving system of the belt conveyor comprises a system starting button, a belt conveyer, a material detection device, a signal transformer, a belt conveyer drive motor, a frequency converter and a programmable controller. The belt conveyer is provided with a conveyer belt and the belt conveyer drive motor. The material detection device is installed right belowunder the conveyer belt and connected with the programmable controller through a signal line. The system starting button is connected with the programmable controller which is connected with the belt conveyer drive motor through the frequency converter by controlling the signal line. The belt conveyer system realizes the automatic control state of ''high speed with materials and low speed without materials''. According to the energy saving system of the belt conveyor and the energy-saving control method of the energy saving system of the belt conveyor provided by the invention, the idle time and idle energy consumption of the belt conveyer can be effectively reduced, so that the system mechanical loss generated in the time is reduced, the work efficiency is remarkably improved, the electric energy loss is reduced, and the purpose of saving energy and reducing consumption is realized.

The invention discloses a Booth multiplier, which comprises a Booth coding circuit, a Booth decoding circuit, compressors and a carry save adder, wherein the Booth coding circuit is used for implementing Booth coding and coding a binary multiplying factor B to acquire signals X1, X2 and Neg; the Booth decoding circuit is used for combining the signals X1, X2 and Neg and a binary multiplicand A to generate partial product terms; the compressors are used for accumulating a plurality of partial product terms generated by the decoding circuit to acquire two accumulated values; and the carry save adder is used for implementing carry save adding operation on the two accumulated values acquired by accumulation of a plurality of partial product terms through the compressors to acquire a final product result. The operating rate is improved by adopting a hybrid Wallace-Tree structure and inserting a streamline. Compared with the prior art, the invention has the advantages that the Booth multiplier can achieve good effects on rate and area, and is low in energy consumption and accurate in calculation result at the same time.

Temporary lock-out is provided while programming a group of nonvolatile memory cells to more accurately program the memory cells. After successfully verifying that the threshold voltage of a memory cell has reached the level for its intended state, it is possible that the threshold voltage will subsequently decrease to below the verify level during additional iterations of the programming process needed to complete programming of other memory cells of the group. Memory cells are monitored (e.g., after each iteration) to determine if they fall below the verify level after previously verifying that the target threshold voltage has been reached. Cells that pass verification and then subsequently fail verification can be subjected to further programming. For example, the bit line voltage for the memory cell of interest may be set to a moderately high voltage to slow down or reduce the amount of programming accomplished by each subsequent programming pulse. In this manner, a memory cell that falls out of verification can be placed back in the normal programming flow without risking over-programming of the cell.