327results about How to "Improve adjustment flexibility" patented technology

The invention relates to a switch power supply and a method for adjusting output current thereof. The switch power supply comprises a transformer, a pulse frequency modulation controller and a switch transistor; wherein the pulse frequency modulation controller inputs a feedback voltage and a sampling voltage, the feedback voltage is associated with the voltage output by the assistant coil, the sampling voltage is associated with the voltage of a second terminal of the switch transistor, the pulse frequency modulation controller also inputs a control signal, the pulse frequency modulation controller generates the driving voltage according to the feedback voltage, the sampling voltage and the control signal, so as to control the switch transistor to switch on or off of the primary coil, thus adjusting the on time and off time of the secondary coil. The invention improves output current regulating flexibility ratio of switch power supply.

The invention provides a pole piece roll-forming method and a pole piece roll-forming device. The method comprises the steps that: slurry is coated on the surface of a current collector, such that a pole piece is prepared; the pole piece is bake-dried in a baking oven of a coating machine; the dried pole piece is delivered into a rolling mechanism, and rolling is carried out, wherein the bake-drying treatment and the rolling of the rolling mechanism are carried out in the baking oven of the coating machine. The pole piece roll-forming device is used for implementing the pole piece roll-forming method. The device comprises a coating machine baking oven used for carrying out the bake drying treatment upon the pole piece formed by the current collector coated with the slurry, and the rolling mechanism used for rolling the dried pole piece. The rolling mechanism is arranged in the coating machine baking oven. With the pole piece roll-forming method and device, battery core electrochemical properties can be improved, and pole piece thickness rebound can be reduced. In industrial production, the method and the device have the advantages of simple operation and easy realization.

The invention relates to a steel tube concrete arch bridge hoisting construction method, belongs to the technical field of bridge construction, and discloses a steel tube arch bridge towerless buckling three-section type double-rib folding hoisting construction method. The method includes the following steps of 1, arch rib pre-assembly, 2, ground anchor arrangement, 3, single-floating-crane transportation, 4, single-edge segment adjustment to be close to design angles through a floating crane, 5, buckling system installation, 6, repetition of the steps 3, 4 and 5 and installation of the other section of a single-edge segment, 7, double-floating-crane transportation, and 8, folding and welding. The method improves production efficiency, accelerates construction, saves engineering cost, and guarantees arch rib installation quality.

The present invention provides an uninterruptible power system (UPS), the UPS comprising: a first converter having a first input terminal for receiving a first power source and a first output terminal for outputting a first voltage, wherein the first power source is a DC power or AC power and the first voltage is a DC voltage; a third converter having a third input terminal for receiving the second power source and the third output terminal connected to the first output terminal, wherein the second power source is a DC power; and a second converter having a second input terminal connected to the first output terminal and the third output terminal, and the second output terminal for outputting a second voltage corresponding to the first voltage.

The invention relates to a dual-valve orifice-area-variable fuel nozzle which comprises an ejector rod (1), a sleeve valve spring (2), a switching base (3), a needle valve spring (4), a sleeve valve (5), a nozzle body (6) and a needle valve (7). The sleeve valve (5) and the needle valve (7) which control opening of orifices are arranged in the nozzle body (6). The sleeve valve (5) is arranged in the nozzle body (6) and the needle valve (7) is arranged in the sleeve valve (5). The auxiliary orifice (14) and the main orifice (15) are formed in the nozzle body (6). The sleeve valve (5) controls opening and closing of the auxiliary orifice (14) and the needle valve (7) controls opening and closing of the main orifice (15). The dual-valve orifice-area-variable fuel nozzle can be applied to a fuel supply system composed of inline type fuel injection pumps or monoblock pumps, the orifice area is controlled through fuel supply pressure of the pumps, so that the law that fuel is injected slowly and then injected rapidly or the fuel is injected in a stepped mode is finally achieved, the fuel atomizing effect under low injection pressure is improved, the orifice area can be changed through fuel pressure change.

The invention relates to a device for brushing dotted lines on roads. The device comprises a support frame consisting of a vertical rod and a horizontal rod which intersect to be cross-shaped, wherein a standing leg is arranged at each of the front end and the rear end of the vertical rod; an auxiliary wheel is mounted on each of the left side and the right side of each standing leg; a No.1 discharging tank is mounted at the intersection of the vertical rod and the horizontal rod; a No.1 painting brush is arranged at the lower part of the No.1 discharging tank; a No.1 crescent roller is arranged below the No.1 painting brush; the upper part of the No.1 crescent roller is in contact with the No.1 painting brush; an end sleeve sleeves each of the left end and the right end of the horizontal rod; a plurality of through holes are formed in the end sleeves and the horizontal rod. The device adopts the mode that three scribing devices are used together for road mark brushing, so that the working efficiency is improved by many times; a paint only needs to be heated on one side to be used by the three scribing devices, so that the energy consumption is reduced; the positions of the end sleeves on the horizontal rod are adjustable, so that the flexibility in adjusting the stretching lengths of the end sleeves is improved, and the device is suitable for mark brushing on roads in different widths.

The invention provides a double-control-valve multi-sealing-tape fuel nozzle which comprises a nozzle body, a sleeve valve, a needle valve and an adapter seat. The sleeve valve is assembled in the inner cavity of the nozzle body, and the needle valve is assembled in the inner cavity of the sleeve valve. A main spray hole and an auxiliary spray hole are formed in the lower end portion of the nozzle body, the auxiliary spray hole is sealed with the main spray hole by means of an upper sealing tape and a lower sealing tape, and the main spray hole is sealed by means of one sealing tape. Opening and closing of the auxiliary spray hole are controlled by ascending and descending the sleeve valve. Opening and closing of the main spray hole are controlled by ascending and descending the needle valve. The double-control-valve multi-sealing-tape fuel nozzle has the advantages that the double-control-valve multi-sealing-tape fuel nozzle can be applied to a fuel supply system consisting of in-line arranged fuel injection pumps or simple pumps, the nozzle area is controlled through fuel pressures of the pumps, accordingly a slowly first and faster afterwards or stepped fuel injection law is achieved finally, and fuel atomization effect under low injection pressure is improved.

The present invention discloses a color temperature adjusting method used for improving the color temperature adjustment flexibility of a display screen of an electronic device. The method comprises the steps of using an acquisition unit to acquire the current scene information, and determining a preset color temperature value range corresponding to the current scene information according to a corresponding relationship of the scene information and the preset color temperature value range; determining whether a first color temperature value is located in the preset color temperature value range; when the first color temperature value is not in the preset color temperature value range, controlling the electronic device to adjust the color temperature value of a display unit from the first color temperature value into a second color temperature value according to a preset rule, wherein, the second color temperature value is located in the preset color temperature value range. The present invention also discloses the electronic device used for realizing the method.

The invention relates to a brick paving robot for garden afforestation. The brick paving robot comprises a bottom plate, travelling wheels, a mounting frame, a grasping device, a paving device and a joint filling device, wherein the travelling wheels are mounted at the lower end of the bottom plate; the mounting frame is mounted at the upper end of the bottom plate; square holes are symmetricallyformed in front and rear ends of the mounting frame; the mounting frame is sequentially provided with the grasping device, the paving device and the joint filling device in sequence from left to right; the grasping device comprises a supporting mechanism and a hold-down mechanism; the paving device comprises a guide mechanism and a compaction mechanism; the joint filling device comprises a charging box and a joint filling mechanism. By adopting the brick paving robot provided by the invention, the problems in an existing square brick paving process of high labor cost, great labor intensity, low working efficiency, poor adjustability, easiness of skewing in a paving process and the like can be solved; a function of automatically paving square bricks can be realized; the brick paving robot has the advantages of low labor cost, small labor intensity, high working efficiency, flexibility in adjustment, high paving straightness and the like.

The invention relates to a parallel steel wire winding device. The parallel steel wire winding device comprises a bottom plate, two lifting frames are arranged on left and right sides of the bottom plate respectively, the left lifting frame is driven by a driving gear, the right lifting frame is driven by a driven gear meshed with the driving gear, and a motor is connected with the driving gear. Each lifting frame comprises a mounting frame, wherein a lead screw is longitudinally arranged in the middle of the mounting frame, a drum is longitudinally mounted on the upper portion of the mounting frame, a shaft of the drum is capable of rotating on the mounting frame, the front end of the shaft of the drum penetrates the mounting frame to sequentially sleeve a transmission wheel and a driving belt wheel, the front end of the lead screw penetrates the mounting frame to sleeve a driven belt wheel, and a timing belt is connected between the driving belt wheel and the driven belt wheel. By the means that one steel wire is driven by one winding drum to realize steel wire winding, steel wire winding length is greatly increased, and interference of two steel wires under the condition of excessive steel wire winding quantity is avoided. In addition, a second wheel is mounted in a way that a supporting position and a steel wire winding wrap angle of a first wheel are adjustable.

The invention discloses a steel arch frame mounting trolley used for operation tunnel disease treatment. The steel arch frame mounting trolley comprises a steel arch frame mounting operating mechanism, an electrical control part and a hydraulic control part. The steel arch frame mounting operating mechanism comprises a railroad flatbed vehicle, a lift trolley, a side wall steel arch frame feedingmechanism, a steel arch frame mounting machine and an arch top and arch waist steel arch frame feeding mechanism, wherein the lift trolley and the side wall steel arch frame feeding mechanism are installed on the railroad flatbed vehicle, and the steel arch frame mounting machine and the arch top and arch waist steel arch frame feeding mechanism are mounted on the lift trolley. The invention further provides a steel arch frame mechanical mounting method used for the operation tunnel disease treatment. According to the steel arch frame mounting trolley, by arranging the railroad flatbed vehicle, the lift trolley, the side wall steel arch frame feeding mechanism, the steel arch frame mounting machine, the arch top and arch waist steel arch frame feeding mechanism, the electrical control partand the hydraulic control part, side walls and arch top and arch waist steel arch frames can be automatically mounted during tunnel disease treatment, the manpower input is reduced, the mechanizationand automation degrees are high, and the mounting efficiency, quality and operation safety of the steel arch frames of the tunnel disease treatment are sharply improved.

The invention provides a comprehensive energy system tie line power control method, which comprises the following steps of: (1) establishing a comprehensive energy optimization scheduling model for dynamically coupling energy supply and production, and calculating to obtain a day-ahead energy production optimization plan and a tie line power plan reference value; (2) based on the real-time power balance equation of each energy subsystem in the comprehensive energy system, constructing a state space model of the comprehensive energy system participating in tie line power control; (3) equivalently converting the state space model of the tie line power control into a quadratic programming model, solving the model by adopting a sequential quadratic programming algorithm, and obtaining adjustable equipment power adjustment quantities of the current time period to the last T control time periods; and (4) issuing the power regulation quantity of the current time period to the first time period after the current time period, and sampling the real-time state of the comprehensive energy system for feedback correction. According to the invention, the tie line power of the integrated energy system is accurately controlled in a complex time-varying environment, and the tie line power of the integrated energy system is ensured to meet the examination of superior power grid departments.

The invention provides a day-ahead scheduling method for a flexible direct-current power transmission system containing pumped storage and new energy power generation, and belongs to the technical field of power grid and energy storage system scheduling. The method comprises the steps of firstly establishing a relative error probability model for predicting the output of each new energy field station; according to the day-ahead output prediction data of all the new energy plant stations, establishing a new energy plant station day-ahead output prediction typical scene set, and calculating corrected day-ahead output measurement data of each new energy plant station under each day-ahead output prediction typical scene; and then establishing a day-ahead scheduling optimization model of the flexible direct-current power transmission system containing pumped storage and new energy power generation, and solving the model to obtain a water pumping and power generation operation plan of a day-ahead constant/variable speed unit, wherein the model is composed of an objective function and constraint conditions. According to the method, the day-ahead prediction output error of the new energy field station is considered in the day-ahead scheduling optimization model, the next day constant/variable speed pumped storage unit is reasonably arranged to operate, and sending and consumption of new energy power generation are realized on the premise of ensuring the constraint of the transmission power of the flexible direct current power transmission system.

The invention discloses a household intelligent controller and a control method thereof. The household intelligent controller comprises a master control chip (1), an infrared sensor (2), a counter (3), a timer (12) and an alternating-current touch switch (4), wherein the infrared sensor (2), the counter (3), the timer (12) and the alternating-current touch switch are electrically connected with the master control chip (1), and the infrared sensor (2) is two pairs of infrared transmission receivers. The controller also comprises a light sensor (13), and the light sensor (13) is electrically connected with the master control chip (1). The household intelligent controller can effectively judge whether people exist in a room or not, and the intelligent control over indoor electrical equipment or power supplies is realized. The intelligent degree is high, the practicality is strong, and the reliability of the controller is very high through accurate count and control. In addition, with the arrangement of the timer and the light sensor, the regulation flexibility of the controller is increased, and the controller is more intelligent and energy-saving. The on and off of the power supplies within a certain time is realized.

The automatic modeling method of the business service model comprises the steps of constructing a model, training the model, evaluating the model and applying the model, and performing continuous dataexploration and model optimization in the process of training the model and the application model; Constructing a model: carrying out data cleaning, data mining, data conversion and data writing by uploading a training set, automatically and quickly matching an algorithm model, and providing multi-dimension assessment model quality; Training a model: training the model through the test set by using a machine learning technology; And model application: applying the model to a real business scene to verify the model, and outputting a visual chart report according to business requirements afterthe model is evaluated and optimized through a test set. The invention provides a big data technology automatic modeling method covering a data mining program module, a machine learning module and anartificial intelligence program module for the whole industry.

The invention discloses a construction conversion technology of double side walls of single-hole large section tunnels. The method comprises following steps: 1. a left middle partition wall of a double-side-wall tunnel moves to the left and a temporary invert gradually moves downward to be respectively coincident with a middle partition wall and a temporary invert of CRD; 2. excavation and supportare carried out for the upper steps and the lower steps of drift heading at two sides of the two side walls and the upper step in the middle, and a middle lower step core soil is reserved; 3. small section step method of excavation and support for the upper step and the lower step is carried out; 4. excavation and support are carried out for the upper step at two sides of the middle section CRD and the lower step at the right side; 5. excavation and support are carried out for the lower step at the middle of the double side walls and for the lower step at right side of the CRD. The inventionuses the method of double-side wall drift heading and combines the moving of the partition wall and the reserved core soil for construction. The construction safety is guaranteed; the cost is reduced;the construction progress is accelerated; the construction scheme is flexible; surrounding rock deformation is rarely developed and strict deformation requirements for project construction can be met.

The invention provides a Point Merge route structure-based approaching track dynamic optimization method in a busy terminal area. The method comprises steps of setting two inner side sequence arcs and two outer side sequence arcs in the terminal area and vertically classifying all aircrafts entering the inner side sequence arcs or the outer side sequence arcs according to different wake flow types; landing the aircrafts in the inner side sequence arcs and the outer side sequence arcs on two adjacent and parallel runways R after the aircrafts pass a converge position point; setting a sliding window with a fixed time length and a moving interval, determining the time length and the moving interval of the sliding window according to flight time of the aircrafts in the terminal area; and then, using an intelligent algorithm to optimize time for entering the terminal area for aircrafts of which parts of or full tracks are in the sliding window, the turning moments of the aircrafts on the sequence arcs and the flight speeds of the aircrafts. The beneficial effects are that positions of the approaching aircrafts can be adjusted more flexibly and an optimal sequence strategy can be achieved.

The invention discloses a binocular camera comprising first and second imaging lenses and first and second image sensors, wherein the binocular camera further comprises first and second optical path conversion devices arranged on object sides of the first and second imaging lenses, a calibration mark fixed relative to the first imaging lens and a calibration lens arranged between the calibration mark and the second optical path conversion device, and the calibration mark can be imaged on the second image sensor by the calibration lens and the second imaging lens. The invention further discloses a self-calibration method for the binocular camera. The self-calibration method comprises the following steps: collecting an image of the calibration mark through the second image sensor; extracting feature parameters in the image; comparing the feature parameters with a pre-stored reference benchmark; and when the difference of the feature parameters and the pre-stored reference benchmark exceeds a predetermined threshold, judging that the binocular camera needs to be marked again. According to the self-calibration method disclosed by the invention, the state in which the binocular camera needs to be marked again can be detected conveniently and effectively.

The invention discloses a manufacture method of a bi-distributed feedback laser double-amplifier based on gamma waveguide, comprising the steps of manufacturing an InP buffer layer, a lower waveguide layer, a multiple quantum well active area, an upper waveguide layer and a grating layer on an N-type indium phosphide substrate in extension and in sequence; manufacturing a passive waveguide area and an active waveguide area on the other side; manufacturing a grating; manufacturing a grating cover layer, a light limitation layer and an electric contact layer on the active waveguide area and on the passive waveguide area in extension and in sequence; etching a gamma-type ridge waveguide downward on the electric contact layer; growing a silicon dioxide insulation layer on the top of the grating and on the surface of the gamma-type ridge waveguide; etching the silicon dioxide insulation layer on the surface of the gamma-type ridge waveguide; manufacturing a first electric isolation groove between the two arms of the gamma-type ridge waveguide on the active waveguide area, and manufacturing a second electric isolation groove between the DFB area and the SOA area on the active waveguide area; manufacturing P electrodes on the two sides of the first electric isolation groove and on the two sides of the second electric isolation groove; reducing the thickness of the N-type indium phosphide substrate; and manufacturing an N-side electrode below the N-type indium phosphide substrate after reducing the thickness to complete the manufacture of the amplifier.