79results about "Control without using feedback" patented technology

A control system for a solar tracker assembly installation including a plurality of solar tracker assemblies, each of the plurality of solar tracker assemblies including a table supporting photovoltaic modules and rotatable through an angle of inclination. The solar tracker control system includes: a plurality of solar tracker controllers periodically outputting table angle of inclination data and solar tracker assembly operating data for the associated solar tracker assembly; a plurality of weather sensors, each outputting weather condition data; and an array controller in direct, wireless communications with each solar tracker controller and each weather sensor. The array controller analyzing communicated table angle of inclination data, the tracker operating data and the weather condition data and, as required, wirelessly communicating control signals to one or more solar tracker controllers of the plurality of solar tracker controllers to change a table angle of inclination of the one or more solar tracker assemblies.

The invention relates to the technical field of photovoltaic array control, and particularly discloses a photovoltaic array control method and system based on dynamic spacing and synchronous control, and the method comprises the steps: segmenting an area where a photovoltaic array is located, obtaining a plurality of photovoltaic array grids, and obtaining the environment parameters of each photovoltaic array grid; determining an initial arrangement scheme of the photovoltaic array according to the environmental parameters of each photovoltaic array grid, and carrying out analogue simulation on the shielding condition of the photovoltaic array according to the initial arrangement scheme; and determining a shadow shielding area of the photovoltaic array according to an analogue simulation result, and determining a synchronous control scheme of the photovoltaic array according to the shadow shielding area of the photovoltaic array. According to the invention, the photovoltaic array can be optimally arranged based on the environmental parameters of each region, and meanwhile, the photovoltaic modules are synchronously controlled for shadow shielding, so that the power generation efficiency of the photovoltaic array is ensured.

Some aspects include a method for operating an autonomous robot, including: capturing, with a first sensor disposed on the robot, data of an environment of the robot; generating, with the processor, a map of the environment based on at least the data of the environment; localizing, with the processor, the robot within the environment; capturing, with a second sensor disposed on the robot, data of a floor surface; determining, with the processor, a floor type of areas of the environment based on the data of the floor surface; and determining, with the processor, settings of the robot based on at least the floor type of the floor surface, wherein the settings comprise at least an elevation of each of at least one component of the robot from the floor surface.

An image / video capture apparatus is provided, to capture image data of a photovoltaic panel (101) and surroundings, and a controller (502) recognizes a category corresponding to the image data, and generates different instructions to control rotation of a photovoltaic tracker (102), to remove dust or snow accumulating on the photovoltaic panel (101). This does not need continuous heating, but is simple and efficient, saves electric energy, and resolves a technical problem that a conventional snow removal method of heating has low efficiency and wastes electric energy. In addition, a corresponding controller (1200) is further provided.

An assembly includes one or more photovoltaic solar trackers; a rechargeable power supply system, including power supply elements to power the tracker or trackers; a charging system, to recharge the power elements; and a tracker controller. The assembly stands out for including one or more supercapacitors as power supply elements. The invention makes it possible to arrange the power supply elements at low temperatures without the need for heaters, increase their useful life and reduce their size.

The present disclosure describes a device for controlling a rotary cylinder, which, by means of six skewed wheels, can align the horizontality or precisely control a target angle and simultaneously adjust the height and position of a rotary axis. In one embodiment, the device for controlling a rotary cylinder comprises a first rotary unit with a first and a second wheel, the inclined surfaces of which are arranged at an angle of deflection relative to the respective base surface such that they touch; a second rotary unit connected to the first rotary unit, comprising a third and a fourth wheel, the inclined surfaces of which are arranged at an angle of deflection relative to the respective base surface such that they touch; and a third rotary unit comprising a fifth and a sixth wheel, the inclined surfaces of which are arranged at an angle of deflection relative to the respective base surface such that they touch.a drive unit that independently drives the first to sixth wheels, a memory for storing instructions, and a processor that, by executing the instructions, rotates at least one wheel of the first to sixth wheels to control the drive unit so that the tilt angle of the rotary cylinder is set to a preset target value.

A photovoltaic tracking system on roof, includes a photovoltaic panel group having photovoltaic panels connected together by their sides in a linear direction using connecting frames, a tilting system, a gear rack, and a stepper motor. The tilting system includes a rod, a wheel, and a rail. The rod has a first end connected to the wheel and a second end connected to the photovoltaic group. The wheel is disposed on the rail and configured to move linearly along the rail. The tiling system is configured to tilt the photovoltaic panel group by a push or pull force from the rod when the wheel travels on the rail. A triangle is formed by the titling system, the photovoltaic panel group, and a portion of the roof, when the tilting system tilts the photovoltaic panel group. The stepper motor moves the gear rack, so it moves the wheel.

An embodiment selects, from a set of candidate locations within a power generation site, a first power generation location. An embodiment causes generation of electricity, by a first power generation unit, at the first power generation location. An embodiment forecasts, during the generation of electricity, a future power generation status of the first power generation unit at the first power generation location. An embodiment causes relocating, responsive to the future power generation status, of the first power generation unit to a second power generation location, the relocating altering the future power generation status.

The invention relates to a pneumatic valve device (1) for industrial automation, comprising a first valve unit (4) and a second valve unit (5), wherein the first valve unit (4) has a higher valve dynamics than the second valve unit (5) and the second valve unit (5) is designed for a higher flow rate than the first valve unit (4), further comprising a control unit (6) configured to provide a control signal (9) as part of a control system, and a frequency converter (11) configured to provide, on the basis of the control signal (9), a high-frequency control component (12) for controlling the first valve unit (4) and a low-frequency control component (13) for controlling the second valve unit (5).

The invention relates to the technical field of household electrical appliances, and discloses a box assembly, a control method thereof and a household electrical appliance. Wherein the box body assembly comprises a main body, a face position acquisition device, an interface projection device and a control device. The main body comprises a cover plate and a mounting plate arranged on one side of the cover plate. The face position collecting device is arranged on the mounting plate and used for collecting the face position of the human body. The interface projection device comprises a driving assembly and a projection piece arranged at the driving end of the driving assembly, and the projection piece is used for projecting the operation interface to the cover plate to be displayed. The control device is electrically connected with the face position collecting device and the driving assembly, and the control device is used for controlling the driving assembly to operate according to the face position collected by the face position collecting device so as to drive the projection part to move relative to the cover plate, and then the display position of the operation interface on the cover plate is adjusted. The operation interface of the household appliance can be adjusted according to the height visual angle of the user, and the use experience of the user is improved.

A method may include obtaining information from a weather forecasting service that relates to indicators of an incoming hail event. The method may include determining a stowing score that quantifies whether the hail event is likely to occur within a period of time based on the information from the weather forecasting service. Responsive to the stowing score exceeding a threshold value, a time at which the incoming hail event is likely to occur may be predicted based on the weather forecasting service information. The threshold value may indicate a threshold likelihood of the hail event occurring or a threshold period of time before occurrence. The method may include determining a wind direction at the predicted time at which the hail event is likely to occur and stowing photovoltaic modules based on the wind direction.

A control input apparatus for operating an aerial lift system includes a control lever assembly that has at least one control lever and at least one position sensor. The at least one position sensor may indicate a position and / or a movement of the at least one control lever. The control input apparatus additionally incudes a control input element actuatable over a movement range from a non-actuated position to a fully-actuated position, and at least one interlock sensor that releases an interlock corresponding to the control lever assembly upon the control input element being actuated at least to an actuation threshold position located between the non-actuated position and the fully-actuated position. Upon the control input element being actuated at least to the actuation threshold position, the control input apparatus provides control inputs corresponding to the position and / or the movement of the control lever indicated by the at least one position sensor.

The invention discloses an ore pass opening ore cleaning method, system and equipment and a storage medium. The method comprises the steps that mechanical arm starting point coordinates, mechanical arm target point coordinates, the mechanical arm base height, the tail end pendulum bob height, the connecting line length of the top end of a mechanical arm base and a tail end pendulum bob, the large arm length and the small arm length are obtained; according to the mechanical arm starting point coordinates and the mechanical arm target point coordinates, the mechanical arm vertical projection distance and the mechanical arm rotation angle are calculated; calculating the angle of the large arm according to the height of the mechanical arm base, the height of the tail end pendulum bob, the vertical projection distance of the mechanical arm, the length of the large arm and the length of the small arm; the forearm angle is calculated according to the mechanical arm base height, the tail end pendulum bob height, the mechanical arm vertical projection distance, the large arm length and the forearm length; according to the rotation angle of the mechanical arm, the angle of the large arm and the angle of the small arm, the mechanical arm is controlled to clean ore at the draw shaft opening through the preset constant flow, and the efficiency and safety of ore cleaning at the draw shaft opening are improved.

The application discloses a heliostat direction correction method and system for photo-thermal power generation, and relates to the technical field of data processing. The method comprises the following steps: acquiring a heliostat array of a target area, and acquiring layout information of the heliostat array; obtaining a plurality of target area grids; respectively calling a plurality of historical correction data of the plurality of target area grids, performing volume division on the plurality of target area grids, and obtaining a first area grid set and a second area grid set; respectively performing image acquisition on the heliostat array of the first area grid set and the second area grid set through an image acquisition device, and obtaining a first image set and a second image set; inputting into a direction correction model, and outputting a first correction parameter set and a second correction parameter set; and performing direction correction on the heliostat array. The application solves the technical problem that the existing heliostat direction correction has low intelligent degree and poor accuracy, and achieves the technical effect of improving correction accuracy.

The present application relates to the technical field of confocal adjustment, and particularly relates to a large-aperture segmented telescope discretization confocal testing and adjustment method, which comprises the following steps: S1: placing a microlens array on the focal plane of the segmented telescope to rearrange the spatial frequency of the focal point of the segmented telescope; S2: performing differential operation on the light intensity of each light spot and the light intensity of the central sub-aperture to obtain the distance from each light spot to the central sub-aperture; S3: performing testing in each direction by using an eight-neighborhood algorithm according to the distance from each light spot to the central sub-aperture to determine the adjustment step and direction of the segmented telescope; and S4: adjusting the spliced sub-mirror of the segmented telescope according to the adjustment step and direction to maximize the energy of the central sub-aperture. The microlens array is used to rearrange the spatial frequency of the focal point, and higher-precision confocal testing and adjustment are finally achieved.

A solar panel mounting system includes a rotatable vertical support member, a lower solar panel support member for supporting at least one solar panel in a rest position, and an upper solar panel support member rotatably attached to the at least one solar panel. One or more connection members attach the at least one solar panel to the upper solar panel support member, allowing the at least one solar panel to rotate relative to the upper solar panel support member. Wind force upon a surface of the at least one solar panel causes the at least one solar panel to rotate around the upper solar panel support member out of the rest position. The system may include a motor connected to the rotatable vertical support member for driving rotation, a computing unit for controlling the motor, and a ground anchoring system for the rotatable vertical support member.

The present application relates to the field of confocal modulation of a mosaic telescope, and specifically provides a large-aperture mosaic telescope partition multi-stage confocal method, comprising: performing finite element analysis on a mosaic mirror to obtain a deformation coupling relationship of mosaic sub-mirrors, dividing the mosaic sub-mirrors of the mosaic mirror into multiple structural functional areas, independently confocally adjusting the mosaic sub-mirrors in each structural functional area by using a digital micromirror device, detecting wavefront information of each structural functional area after independent confocal adjustment by using a wavefront sensor, and adjusting all the mosaic sub-mirrors in the structural functional area as a whole according to the wavefront information of each structural functional area, so that the area focal points of all the structural functional areas are collectively converged at a final system focal point of the mosaic mirror. The present application realizes initial misadjustment detection and high-precision confocal correction in a large dynamic range, and reduces confocal adjustment cost and complexity.

The utility model belongs to the technical field of electric lifting table controllers, and particularly relates to a linear driving controller with a fingerprint lock, which comprises a shell internally provided with a main control module; the at least two basic keys are embedded in the shell and are electrically connected with the main control module respectively; the fingerprint identification module is embedded in the shell and is electrically connected with the main control module; wherein the fingerprint identification module is suitable for verifying the fingerprint of a user and sending a verification success signal to the main control module after the verification is passed; the main control module is suitable for activating the basic key for use after obtaining the verification success signal, so that the lifting table can be controlled to ascend and descend when the basic key is pressed. According to the linear driving controller with the fingerprint lock, the user identity is recognized through the fingerprint recognition module, the situation that the height of the lifting table is changed by mistakenly touching of other people or children is effectively prevented, and the safety of the lifting table is improved. The stability of the height of the lifting table in the working process of a user is guaranteed, and the use experience of the user is improved.

Devices and methods presented in this disclosure may be advantageously employed to optimize power generation and / or increase longevity of modules. In aspects of the invention, switching from backtracking mode to twin half cut module mode depending on angle of incidence and / or diffuse fraction calculations / measurements may increase power generation compared to if only one mode were used. In aspects of the invention, preventing the tracker from generating excess power may reduce temperatures of the tracker and increase longevity of its solar panels.

A solar plant and single axis solar tracker management method maximize power output production. The object of the invention embraces a solar plant and a method accounting for readings being made by field sensors whilst weather forecast data are provided by third parties such as weather forecast companies collecting and broadcasting weather forecast data related to sun irradiance levels and climate conditions affecting sun irradiance levels, like clouds, pollution or fog. Some of the solar trackers of the plant are furnished with irradiance sensors, whilst the solar plant has a plurality of solar sensors arranged along; these solar sensors being configured to measure irradiance on a horizontal plane. The object of the invention envisages an outpost solar tracker configured to take radiation measurements in an inclined plane and, when it is necessary to verify the measurements of the horizontal sensors, they will go to 0° positions.

The present invention discloses a range hood and a control method thereof. The range hood includes a detection unit and a windshield. The control method includes: obtaining a target distance between the detection unit and an obstacle; and controlling the range hood to descend based on the relationship between the target distance and a first preset distance and a second preset distance. The first preset distance is determined by the vertical distance from the detection unit to the upper edge of the windshield and the angle between the plane containing the optical axis of the detection unit and the vertical direction. The second preset distance is determined by the vertical distance from the detection unit to the stove and the angle. The present invention greatly improves the intelligence level of range hoods with automatic lifting functions, prevents collisions between the range hood and cookware, and ensures user safety, thereby improving the product experience and service life.

The invention relates to the technical field of shield tunneling machine hoisting, in particular to a single-shield TBM hoisting installation method which comprises the steps that S1, a starting guide table, a pilot tunnel and an empty guide table are constructed, S2, an anterior shield is firstly put into a well and pre-tightened, the anterior shield is located at the front end of the starting guide table so that the front end face of the anterior shield can be located above an annular welding channel, S3, the anterior shield is located at the front end of the starting guide table so that the front end face of the anterior shield can be located above the annular welding channel. The cutter head and the front shield are pushed forwards along the starting guide table, the rear end face of the front shield is located above the annular welding channel, the middle shield is sequentially descended into a well and connected with the front shield, the annular welding channel is reserved between the starting guide table and the empty guide table, the shield body is subjected to receding in a forward pushing mode, and therefore shield body hoisting is achieved in the limited working well space. Splicing can be completed only by arranging one annular welding channel, and the construction difficulty of the guide table can be effectively reduced. Shield body posture control is achieved through the guide rails and the sliding blocks, the complexity of pipe piece disassembly and assembly is avoided, and the construction efficiency is greatly improved.

The application provides a three-way self-adaptive control tuned liquid damper, which comprises a liquid mass damper, a damping system, a stepping system, a connecting system and a control unit; the liquid mass damper is composed of a top water tank, a mass block and a bottom water tank; the damping system is composed of silicone oil, an iron bar and an elliptical plugboard; the stepping system is composed of a stepping motor, a stepping push-pull rod, a telescopic rod frame, a stepping telescopic rod and an electric rotary table; the connecting system is composed of a water pipe, a water pump, an electromagnetic valve and a shape memory alloy spring; the control unit can control the electric rotary table to change the angle of the elliptical plugboard, the stepping system and the connecting system to adjust the frequency, stiffness and damping of the damper in real time according to the signals of the accelerometer and the displacement meter on the structure; and the application can realize the vibration control in the Z direction, the X direction and the Y direction in the plane, and has stronger vibration control performance and structural use comfort.

A method may include obtaining information from a weather forecasting service that relates to indicators of an incoming hail event. The method may include determining a stowing score that quantifies whether the hail event is likely to occur within a period of time based on the information from the weather forecasting service. Responsive to the stowing score exceeding a threshold value, a time at which the incoming hail event is likely to occur may be predicted based on the weather forecasting service information. The threshold value may indicate a threshold likelihood of the hail event occurring or a threshold period of time before occurrence. The method may include determining a wind direction at the predicted time at which the hail event is likely to occur and stowing photovoltaic modules based on the wind direction.

The invention relates to the technical field of confocal modulation of spliced telescopes, and particularly provides a large-aperture spliced telescope partition multistage confocal method, which comprises the following steps: carrying out finite element analysis on a spliced mirror surface to obtain a deformation coupling relationship of spliced sub-mirrors, and dividing the spliced sub-mirrors of the spliced mirror surface into a plurality of structural functional areas, a digital micro-mirror device is used for carrying out independent confocal adjustment on spliced sub-mirrors in each structural functional area, then a wavefront sensor is used for detecting wavefront information of each structural functional area subjected to independent confocal adjustment, and all spliced sub-mirrors in the structural functional area are integrally adjusted according to the wavefront information of each structural functional area. And converging the regional focuses of all the structural functional regions together to a final system focus of the spliced mirror surface. According to the invention, large-dynamic-range initial imbalance detection and high-precision confocal correction are realized, and confocal adjustment cost and complexity are reduced.

This invention discloses a portable projector, comprising: an inner shell connected to outer shells on the upper and lower sides; the inner shell having an air inlet, an air outlet, and a sound outlet from top to bottom; a speaker installed inside the lower outer shell; a main control board above the speaker; a heat sink above the main control board; the heat sink having heat dissipation fins and a fan; the heat dissipation fins corresponding to the air outlet; an optical engine above the heat sink; a driver board above the optical engine; an angle adjustment component above the driver board; the position of the air inlet corresponding to the lower side of the driver board or the angle adjustment component; and a gesture detection board above the angle adjustment component. This design achieves a highly efficient heat dissipation structure while making the device compact and small in size.

The application provides a photovoltaic panel chain drive control system and a control method. The control system comprises a first track and a second track, the first track and the second track are arranged side by side, an activity space is arranged between the first track and the second track, the activity space comprises an unfolding part and a storage part; a plurality of power beams, the power beams are used for bearing photovoltaic panels, the power beams are connected in series, adjacent power beams are connected through fixed-distance ropes; an ejection rope and an ejection power mechanism, the ejection power mechanism is connected with the ejection rope and is used for driving the first end of the ejection rope to move forward; the power beams are arranged in the activity space, the first end of the power beam is connected to the first track, and the tail end of the power beam is connected to the second track; the plurality of power beams comprise a first power beam at the first position and a last power beam at the last position, and the first end of the ejection rope is connected with the first power beam. Through the application, the technical problem that the photovoltaic panel is difficult to realize the layering in and out is solved.