1779results about How to "Guaranteed stable work" patented technology

Method and a device are disclosed for a fast performance of network operations via a network with high delay times by means of a module for processing system calls of an application layer and for initiating network operations of a network layer. In the module a differentiation between a blocking and non-blocking implementation mode is made. A non-blocking execution mode means that the considered system call returns a logical value as a result to the application, which signals whether the system call was successfully executed. In this case it is provided by the method and device to directly send a logical value to the application when a non-blocking system call is called, without having waited for the actual result of the operation executed in the communicating partner instance and corresponding to the system call. The handling of the results of the actually executed operations takes place at a later time. With this modification, the network operations, which are derived from the system calls, are executed faster, as the actual result is not waited for at each call, which also implies the reduction of the number of required RTTs (Round Trip Time).

Syringes and methods of using are described which protect the syringe barrel cavity from contaminants. A first syringe is formed with a corrugated sheath or non-corrugated sheath which is positioned internal or external to the syringe barrel cavity. A second syringe is formed with a syringe barrel having a straight segment and a corrugated segment having the forward face of the plunger handle member molded to the rearward terminus of the corrugated segment of the syringe barrel. A third syringe is formed from mating syringe barrel and plunger member walls. The walls of the mating syringe barrel and plunger member are concentric and slide relative to each other while maintaining an enclosure around the plunger shaft. A fourth syringe is formed from inner and outer concentric syringe barrel walls mating with the walls of a plunger member. The mating walls are concentric and slide relative to each other while maintaining an enclosure around the plunger shaft. A fifth syringe is formed with an end cap contaminant shield having an extension wall that is mated with the inner wall surfaces of the syringe barrel cavity, or outer wall surfaces of the syringe barrel. Alternatively, the end cap contaminant shield can be provided with a flat design without the extending wall and is bonded or molded to the rearward end terminus of the syringe barrel. The end cap contaminant shield designs are provided with an opening defining the shape of the cross-section of the plunger shaft.

In construction machinery, control is conducted to keep a work machine to operate at a constant speed regardless of the operation thereof. Different engine output lines T0-T3 and pump torque lines M1-M4 are defined for different operation types. All the matching points of the engine output lines T0-T3 and pump torque lines M1-M4 designate a constant engine speed N1. One engine output line and one pump torque line are selected according to the operation type presently selected. An output horsepower of the engine is controlled on an equal horsepower line corresponding to a sum of a horsepower for an auxiliary machine and a horsepower at a matching point of the selected lines. The pump torque for the work machine is controlled on the selected pump torque line. The engine operates at a constant speed N1 even when the operation type varies or the horsepower for the auxiliary machine changes.

The invention discloses an IGBT driving circuit embedded with an isolating source, comprising a power supply circuit and a driving circuit; wherein the power supply circuit sequentially comprises an oscillating circuit in charge of producing a push-pull driving signal, a transforming circuit which comprises at least one pair of switch tube and realizes energy transformation by alternate on/off according to the push-pull driving signal, a power transformer in charge of transmitting energy from the primary winding thereof to the secondary winding and a rectifying filtering circuit in charge of independent rectifying filtering on the secondary winding of the power transformer in two paths, wherein a common terminal is led out to realize positive and negative power supply output, so as to supply power to the driving circuit. A high-efficiency DC/DC isolating converter and the IGBT driving circuit are integrated, thus saving an outdoor isolating source and being convenient for application of a driver; and the invention is easy to be realized by adopting hybrid integrated thick film circuit, thus being beneficial to adopting SIP encapsulation and saving PCB area.

The invention relates to a vehicle environment sensing system and method based on an unmanned plane, and the system and method are used for quickly acquiring the road environment information around a vehicle. The sensing system comprises the unmanned plane and an earth station, the unmanned plane id connected with the vehicle through a mooring rope, the road surface is shot by the unmanned plane, and a video image is transmitted to the earth station; the earth station is arranged in the target vehicle, the earth station can process the video image to obtain the vehicle environment information, and the earth station also can calculate the flight control parameter and send the parameter to the unmanned plane to make the unmanned plane and the vehicle move together. The sensing method is based on the sensing system, the unmanned plane takes off and hovers above the vehicle, the unmanned plane establishes a communication for sensing the environment and transmits the video image to the earth station, the earth station processes the video image, calculates the vehicle environment information and transmits the information to the vehicle, and the earth station calculates the flight control parameter and transmits the parameter to the unmanned plane. According to the invention, the system can perform the wide area observation in the direction vertical to the vehicle plane direction, the coverage is wide, the road environment information around the target vehicle can be easily sensed, and the distance between the objects in the image can be precisely calculated.

The invention discloses an apple peeling and core removing all-in-one machine, which comprises a machine frame, wherein a pulley rail is arranged under the machine frame; an L-shaped pushing rod is arranged under the pulley rail; the tail end of the pushing rod is provided with a peeling cutter blade; two groups of motors are arranged under the machine frame; rotatable telescopic rods are arranged under the motors; a steel needle used for being inserted into an apple so as to conveniently rotate for peeling is arranged under one group of telescopic rods; a core removing device is arranged under the other group of telescopic rods; a conveying belt is arranged in the machine frame; a circular ring-shaped tray is arranged on the conveying belt; a recovery box used for discharging out apple cores is arranged under the conveying belt; in addition, the recovery box is arranged right under the core removing device; the right end of the conveying belt is provided with a collecting box; a switch is also arranged on the machine frame. The apple peeling and core removing all-in-one machine has the advantages that the structural design is reasonable; the occupied area is small; the peeling and the core removing are integrated; the work efficiency is high; the apple peeling and core removing all-in-one machine is suitable for being generally popularized and used.

A switching device that selectively changes a computer to be operated from multiple computers including a control unit that the control unit detects a cursor position on the computer to be operated based on coordinate data and a computer resolution of the computer to be operated, the coordinate data being generated by performing a same acceleration process as the computer to be operated, on relative coordinate data that has been acquired from a given pointing device, and the control unit selectively changing changes the computer to be operated according to the cursor position. It is thus possible to selectively change the computer to be operated without any dedicated software or requiring a given space for manipulation.

A chemical composition and method for repairing a thermal barrier coating on a component designed for use in a hostile thermal environment, such as turbine, combustor and augmentor components of a gas turbine engine. The method repairs a thermal barrier coating on a component that has suffered localized damage to the thermal barrier coating. After cleaning the surface area of the component exposed by the localized spallation, a paste-like mixture of a ceramic composition comprising ceramic powders and nano-sized ceramic materials in a binder is applied to the surface area of the component, and is optionally smoothed using mechanical means. The composition is then allowed to dry and cure to form a dried coating having polymeric characteristics. Upon subsequent heating, the dried coating reacts to produce a glassy ceramic repair coating. Due to the thixotropic properties of the coating composition upon application to a component, the repair method can be performed in-situ while the component remains installed in its operating environment.

There is provided a forklift in which a mast upstands in front of the body of the forklift, a lift bracket is mounted on the mast in a vertically movable manner, and a fork is engaged with the lift bracket, wherein a laser light source which illuminates an area in front of the fork is attached to the lift bracket or the fork, and a light beam emitted from the laser light source is formed into a shape which laterally elongates, via a lens.

A chemical composition and method for repairing a thermal barrier coating on a component designed for use in a hostile thermal environment, such as turbine, combustor and augmentor components of a gas turbine engine. The method repairs a thermal barrier coating on a component that has suffered localized damage to the thermal barrier coating. After cleaning the surface area of the component exposed by the localized spallation, a paste-like mixture of a ceramic composition comprising ceramic powders and nano-sized ceramic materials in a binder, further including an accelerant, is applied to the surface area of the component, and is optionally smoothed using mechanical means. The composition is then allowed to dry and cure to form a dried coating having polymeric characteristics. Upon subsequent heating, the dried coating reacts to produce a glassy ceramic repair coating. Due to the thixotropic properties of the coating composition upon application to a component, the repair method can be performed in-situ while the component remains installed in its operating environment.

The invention discloses a quantitative recovery method for the long-term blowing-down of a blast furnace, belonging to the technical field of blast furnace iron-making. A long-term blowing-down and furnace condition recovery process is divided into four phases, namely, a blowing-down operation phase, a blowing-down phase, a blowing-in operation phase and a furnace condition recovery phase by taking air quantity control as a core, according to the focused work in each phase of the long-term blowing-down and furnace condition recovery process of the blast furnace. The quantitative recovery method has the advantages of standardizing the long-term blowing-down recovery phase of the blast furnace and the control standards of various parameters, and providing a guarantee on the safety and the high efficiency of the recovery process.

The invention discloses a rail transit power supply system twin coil access medium-voltage energy feed system and method. The system comprises a rectification transformer, a twin coil access energy feed device, and a rectification unit. The twin coil access energy feed device comprises two energy feed branches arranged in parallel. Each energy feed branch comprises an AC-side low-voltage breaker, an isolation transformer, an inverter, and a DC-side contactor which are successively arranged in series. The method comprises steps that current is acquired from a medium-voltage AC power grid and is supplied to a DC traction network by means of the rectification transformer and the rectification unit when a train is started; and the twin coil access energy feed device is started and train braking energy is fed back to the medium-voltage AC power grid via the twin coil access energy feed device and the rectification transformer when the train is braked. The system may achieve energy conservation and stable DC bus voltage, is good in flexibility, small in size, high in combination with a conventional system, high in power factor, low in harmonic injected into an AC side, and good in universality.

The present invention relates to waste paper baler technology, and is especially one kind of automatic waste paper baler. The automatic waste paper baler includes hydraulic device, pushing head, threading rod, string winding device, and frame with paper feeding cavity, paper pressing cavity and paper discharging cavity. The paper pressing cavity is communicated to the paper feeding cavity and the paper discharging cavity; the pushing head is mounted in the back of the paper pressing cavity; and beside the frame, there are iron string for baling pressed paper package, threading rod and string winding device. The automatic waste paper baler has great compressibility, high baling capacity, simple operation and low cost.

The invention relates to an electric vehicle chassis battery charging and replacing device. The electric vehicle chassis battery charging and replacing device comprises a ground slide guide rail, a mechanical arm, a battery box and a battery frame, wherein the mechanical arm is arranged on the ground slide guide rail; the battery frame is used for placing the battery box; a non-standard clamp used for clamping the battery box is arranged on the mechanical arm; the battery frame comprises a frame body, a charging layer, a working layer and a stored to-be-charged layer; each of the charging layer, the working layer and the stored to-be-charged layer is provided with a lifting table, a moveable guide rail and a tray which are arranged on the frame body; a pressure sensor is arranged on each tray; each lifting table is connected with the frame body through each lifting guide rail; the moveable guide rail is arranged on each lifting table; each tray is arranged on each moveable guide rail of each lifting table. The electric vehicle chassis battery charging and replacing device is convenient and quick in work, clear in labor division, flexible in clamping, precise in positioning, and stable and reliable in the whole working process, the requirement of quickly replacing the battery of a large-mass electric vehicle is better met, the battery charging and replacing efficiency is greatly improved, and the problems of low battery charging and replacing efficiency and the like of the electric vehicle are solved.

The invention discloses a method for tracking a solar double-peak maximum power point. The method comprises the following steps of: 1) performing global scanning periodically, if a global scanning time reaches a predetermined time, executing the step 2) to the step 4) in turn, and if the global scanning time does not reach the predetermined time, performing a local MPPT algorithm all the time; 2) defining initial scanning power and setting an initial step length; 3) measuring a current voltage and a current, and calculating current power, wherein the current power is equal to a product of the current and the current voltage; and 4) comparing the current power with last power, and judging power change by disturbing a duty ratio continuously to determine whether the scanning is finished so as to determine a maximum power point. The method has the advantages that: periodic global scanning is added into a common maximum power point tracing algorithm; a scanning time is shortened effectively according to series-parallel characteristics of a solar system so as to ensure the steady operation of the system and avoid that the system works at a secondary maximum power point in a double-peak phenomenon; and therefore, electric energy production is improved.

The invention relates to a USB data transmission device in a high-speed data communication link and a method thereof. The device comprises a USB control functional module connected with a host machine and a central control module, wherein the central control module comprises a DMA controlling unit and an ARM controlling unit connected with the DMA controlling unit, and the DMA controlling unit and the ARM controlling unit are respectively connected with the USB control functional module. The method comprises the following steps: data receiving processing operation and data transmitting processing operation. The USB data transmission device in the high-speed data communication link and the data transmission method thereof completes the data transmission by skillfully adopting the way that a hardware signal directly triggers the DMA, reduce the interruption to the CPU to the utmost extent, obviously lower the load of the CPU, and improve the efficiency and the reliability of the system. meanwhile, the principle is simple and practical, the operating process of the system is stable and reliable, the application range is broader, and especially in the high-speed data communication, the data transmission speed can reach 100 Mbps, which can meet the requirements of application of majority of communication data links.