477 results about "Control complexity" patented technology

An autonomous navigation and man-machine coordination picking operating system of a picking robot comprises a travelling unit of the picking robot, a picking robot arm, an Agent, a wireless sensor network, a computer and a panoramic stereoscopic visual sensor. The Agent has functions of autonomous navigation, obstacle avoidance, positioning and path planning and the like, the wireless sensor network is used for completing man-machine coordination picking information interaction, the computer is used for providing long-distance intervention and management for picking administrators during man-machine coordination picking operation, and the panoramic stereoscopic visual sensor is used for acquiring panoramic stereoscopic video images in a picking area. The autonomous navigation and man-machine coordination picking operating system of the picking robot is fine in natural flexibility, simple in mechanism, low in control complexity, limited intelligent, high in picking efficiency, fine in environmental adaptation, and low in manufacturing and maintenance costs., Picking objects and crop are not damaged during picking.

A biomimetic benthon fishing robot comprises a fishing robot body, four limbs based on artificial muscles and having two functions of seabed walking and benthon fishing, a pressure sensor used for sensing water depth, a digital compass used for detecting the walking direction of the fishing robot, a binocular stereoscopic panoramic visual sensor used for acquiring panoramic stereoscopic vision video images which are 360 degrees around the fishing robot, an intelligent body used for controlling the four limbs to harmonize seabed walking and for performing identification and spatial erientation to a fished object, autonomous navigation, fishing action controlling and information interaction with a mother ship on the water, and a navel cord for communicating with the mother ship on the water and connected with energy equipment supply equipment. The biomimetic benthon fishing robot provided by the invention has the advantages of good natural flexibility, simple mechanism, low control complexity, low manufacturing and maintenance costs, and high efficiency during the fishing process.

The invention relates to an autonomous navigation and man-machine coordination catching operating system of a benthic organism catching robot, which comprises a catching robot, a computer used for carrying out comprehensive analysis processing and judgment on catching site and the state of the catching robot and used for providing remote intervention and management for catching management personnel in man-machine coordination catching operation, a mother ship used for carrying the management personnel and collecting and transporting catching objects, and a GPS (Global Positioning System) used for positioning the spatial location of the mother ship; information interaction is carried out between Agent in the catching robot and the mother ship on the water surface, and the actions of benthic walking, identification and space orientation of the catching objects, control catching and the like are autonomously finished. The autonomous navigation and man-machine coordination catching operating system of the benthic organism catching robot is simple in mechanism, low in control complexity, limited in intelligentization, high in catching efficiency, good in environmental suitability and low in manufacturing and maintenance costs, and can pointedly realize catching.

A label switching method is provided. When a Passive Optical Network (PON)-based Label Switching Path (LSP) is established, a PON logical service transmission channel is established between an Optical Line Terminal (OLT) and an Optical Network Unit (ONU). According to an identifier (ID) of the PON logical service transmission channel as a PON label, a PON-based Forwarding Information Base (FIB) table on the ONU is updated, and a PON-based Label Forwarding Information Base (LFIB) table on the OLT is updated, where the PON-based LFIB table records a forwarding relationship between an ingress port plus an ingress label and an egress port plus an egress label, and the PON-based FIB table records a forwarding relationship between the ingress port plus a destination address and the egress port plus the egress label. Therefore, the problems between network segments of different forwarding characteristics, protocol variation, inter-segment conversion, and mapping and control complexity are avoided.

The invention relates to an improved gate drive device for SiC MOSFET bridge crosstalk suppression, belonging to the technical field of SiC driving. The device includes a main drive circuit and a passive auxiliary circuit, the main drive circuit is composed of a DC-DC converter unit, an optocoupler isolation chip unit, a drive chip unit and a drive resistor unit, and the passive auxiliary circuit is composed of a forward peak voltage suppression unit and an inverse peak voltage suppression unit. The invention provides a novel auxiliary circuit improved driving method additionally provided with a triode serial capacitor on the basis of a conventional drive circuit. Through the reasonable design of the main drive circuit and the passive auxiliary circuit, the aims of bridge crosstalk suppression, switch time-delay time shortening, switch loss reduction, and control complexity reduction can be achieved. The device provided improves the work reliability and efficiency of a SiC MOSFET bridge converter and reduces the cost and complexity of drive control.

A scissor lift mechanism (1) having at least two scissor elements (4, 5) connected in pairs by a swivel axis (3). The drive (11) for raising and lowering the scissor elements (4, 5) is provided by a traction member (13). To reduce the driving power required for operation while at the same time reducing control complexity, the scissor lift mechanism (1) is equipped with two coupling bridges (14, 15) situated on opposite sides of the swivel axis (3) and pivotably supported by thrust struts (22, 23) on each of the two scissor elements (4, 5), respectively. The distance “a” between the coupling bridges (14, 15) and the resulting height of lift “h” are easily variable by applying a tractive force “F” via the traction member (13, 25) which is guided around reversing rollers (16) and back and forth along a plurality of generally parallel paths (18, 19, 20, 21) between the two coupling bridges (14, 15).

The invention discloses an all-solid-state DC breaker and a control method thereof. The all-solid-state DC breaker, including a long-term flow passage branch, a current cut-off branch and an energy absorption branch that are connected in series, is characterized in that the long-term flow passage branch includes at least one half-control device and at least one full-control device that are in series connection, and a full-bridge circuit is adopted to achieve bidirectional flow passages; the current cut-off branch is formed by a circuit break unit including a full-control device, an RCD absorption circuit and a lightning arrester that are connected in series, and a full-bridge circuit is adopted to achieve bidirectional flow passages; and the energy absorption branch includes at least one lightning arrester. The all-solid-state DC breaker is simple and novel in topological structure and low in on-state loss, the number of full-control devices is reduced, and the control complexity and costs are reduced. Faulty currents can be removed quickly. The faulty currents are prevented from increasing through separate control of cut-off units, so the breaker effectively copes with short circuit and overload faults in a DC system while having a current limiting function. The DC system can be protected and runs safely.

The invention relates to a refrigerator and a branch air supply device for a refrigerator, wherein the branch air supply device comprises: a housing that has an air inlet, a first air outlet and a plurality of second air outlets; a retaining board that is rotatably mounted at the first air outlet; an adjusting member that is rotatably disposed inside the housing to fully or partially cover or fully expose all second air outlets from different rotation positions, thereby adjusting the air outlet area of each second air outlet; and a linkage that is configured to transmit rotational motion of the adjusting member to the retaining board, thereby moving the retaining board to open or close the first air outlet; in addition, the invention also provides a refrigerator having the branch air supply device. The refrigerator and the branch air supply device for the refrigerator may allow the opening and closing of the first air outlet and the multiple second air outlets to be controlled in the same time, thereby reducing the control complexity of the refrigerator.

The invention provides an air conditioner and an air conditioner control method. The method comprises the following steps: acquiring a dressing amount parameter and a metabolism rate parameter; collecting initial indoor temperature, initial relative humidity and initial wind speed; calculating based on the dressing amount parameter, the metabolism rate parameter, the initial room temperature, theinitial relative humidity, the initial wind speed and target environment requirements to obtain target operation temperature of the air conditioner; controlling the air conditioner to operate at the target temperature; and if new target environment requirements are input, calculating new target operation temperature of the air conditioner again until shutdown of the air conditioner. By using the air conditioner control method, the control complexity is reduced, thereby improving control instantaneity and user experience, and solving problems of long calculation cycle and complicated realization for air conditioner control methods in the prior art.

The invention relates to a control method of a dual-active-bridge converter, and aims to provide a triple-phase-shift control method of the dual-active-bridge converter. According to the triple-phase-shift control method, an output voltage controller used for adjusting an output voltage is arranged in the dual-active-bridge DC converter of a bi-directional topological structure, an input signal ofthe output voltage controller is a difference value between a given value of a secondary side DC voltage and an actual measured value, and an output signal of the same is a control signal alpha whichis used for adjusting a duty ratio D1 of a primary side bridge arm neutral-point voltage, a duty ratio D2 of a secondary side bridge arm neutral-point voltage and a phase difference D3 of the voltages. The triple-phase-shift control method solves the problems of dual-active-bridge current stress optimal solution and control complexity, obtains the corresponding D1, D2 and D3 when the inductive current stress is minimum under each power point, solves relationships among the D1, D2, and D3, proposes the simple control method, and can realize the effect that the converter operates according to atrajectory with the minimum current stress by using just one PI controller.

The invention discloses a multi-degree-of-freedom foot plate for a humanoid robot, and belongs to the technical field of robots. The multi-degree-of-freedom foot plate comprises a foot plate mechanism and a driving mechanism, wherein the foot plate mechanism consists of a central fixing plate and four foot plates; the front side and the rear side of the central fixing plate are hinged with two connecting plates respectively; each connecting plate is connected with a foot plate through a hinge; a rotating shaft of each hinge is provide with a torsion spring; an ankle joint connecting frame of the humanoid robot is fixedly arranged on the central fixing plate and is used for connecting ankle joints of the humanoid robot; and the driving mechanism is mainly stretched and retracted through a driving motor in combination with a spring so as to drive all the connecting plates in the foot plate mechanism to do pitching motion. The foot plate has the advantages that: the problem of incapability of matching the foot plate mechanism with an uneven ground surface is solved, and the foot plate mechanism has a passive structure, so that control complexity and structural complexity are effectively reduced without driving; and the driving mechanism is a flexible variable stiffness driving mechanism, so that impact absorption capacity is improved, and the robot can walk efficiently and stably.

The invention discloses an aerial camera focusing system, which comprises a lighting source, a collimating lens, an object, a beam-splitting prism, an objective lens, a reflector, a CCD (Charge Coupled Device), a signal acquisition module and a driving control module. During focusing, the reflector is rotated to be perpendicular to an optical axis; light emitted by the lighting source is collimated by the collimating lens for uniformly lighting the object which is placed on a focal plane of the objective lens of a camera; then the beam is split by the beam-splitting prism through reflection and transmission; the light which transmits through the prism is reflected back through the reflector after passing through the objective lens and then passes through the objective lens; and finally, the reflected light is imaged on the CCD by the beam-splitting prism. During imaging, the reflector is clockwise rotated at an angle of 45 degrees, ground light is reflected by the reflector, and the reflected light is directly imaged on the CCD by the beam-splitting prism after passing through the objective lens. The system is suitable for focusing of a medium-length focal aerial camera with a scanning reflector; a focusing optical path directly guides imaging of an imaging optical path; the control complexity is reduced; and the stability of the system is improved.

A biominetic crop picking robot comprises picking pipes based on pneumatic artificial muscle, a generator used for feeding air pressure into inner cavities of the picking pipes, pneumatic pressure rate control valves used for controlling the air pressure fed into the inner cavity of each picking pipe, a pressure sensor used for detecting air pressure fed into the inner cavity of each picking pipe, a pneumatic pressure rate controller used for coordinating and controlling each pneumatic pressure rate control valve, a pulse type vacuum generation module used for sucking picked objects, a picking control subsystem used for controlling and performing picking action, a container used for collecting the picked objects, a microprocessor used for intelligently analyzing a video, autonomously navigating and controlling the action of the picking pipes based on the pneumatic artificial muscle and a walking part used for the work of a picking robot in a picking crop area. The biominetic crop picking robot has the advantages of excellent natural flexibility, simple mechanism, low control complexity, high picking efficiency, excellent environmental adaptability, and low manufacturing and maintenance costs.

The present invention discloses a water purifier filtration core service life detection apparatus, which comprises: N filtration cores sequentially connected in a series, wherein N is an integer of greater than or equal to1; valves, wherein the inlet of the valve is respectively connected with the first end of the N filtration cores and the second end of the Nth filtration core; a detection module connected with the outlet of the valves and provided for detecting pressures of the first end and the second end of each filtration core so as to produce corresponding pressure detection signals; and a control module for controlling the valve so as to select the corresponding filtration core, acquiring the pressure difference value of the corresponding both filtration core ends according to the pressure detection signal, comparing the pressure difference values of both ends of each filtration core with a corresponding preset threshold, and judging whether the failure of each filtration core exists according to the comparing result. The water purifier filtration core service life detection apparatus has characteristics of high detection precision, cost saving, simplified control complexity, and improved reliability. The present invention further discloses a detection method of the water purifier filtration core service life detection apparatus.

The invention discloses a parallel three-phase grid-connected inverter adopting mutual reactors and a control method for the three-phase grid-connected inverter, and belongs to the technical field of power grid inversion. The inverter overcomes the shortcomings of large volume, high weight, high cost, low efficiency, narrow application range, control complexity, low reliability and the like of the conventional parallel grid-connected inverter. According to the inverter, two sets of three-phase grid connected inverters are connected in parallel, and a capacitor is connected in parallel with a direct current bus which is shared by the two sets of three-phase grid connected inverters; and the two in-phase alternating current signal output ends of the two sets of three-phase grid-connected inverters are connected together after passing through a set of mutual reactor respectively, and are connected with a power grid. According to the three-phase grid-connected inverter, the two sets of three-phase grid-connected inverters with the same structure are coupled with each other by the mutual reactors; and for each three-phase grid-connected inverter, a d-axis component and a q-axis component are coupled with each other, and in order to eliminate the influence, a feed-forward decoupling control strategy and a current loop are adopted in the control method.

The invention relates to an electric-driving transmission device for an electric vehicle and a control method. The electric-driving transmission device comprises a driving motor, a differential mechanism, a first brake, a second brake, a first planetary gear set and a second planetary gear set, wherein the first planetary gear set comprises a first sun wheel, a first planet carrier and a first gear ring, and the second planetary gear set comprises a second sun wheel, a second planet carrier and a second gear ring. An output shaft of a driving motor is sequentially connected with the first sunwheel and the second sun wheel. The first gear ring is connected with the first brake, and the second gear ring is connected with the second brake. The first planet carrier and the second gear ring are connected to form a whole, the second planet carrier is provided with an output support, and the output support is connected with an input shaft of the differential mechanism. Compared with the prior art, the electric-driving transmission device can achieve non power failure in the gear shifting process, is low in control complexity, has relatively low requirements for performance of the drivingmotor, and is high in practicability, compact in structure, small in size, low in weight and low in manufacturing cost.

The invention discloses a color wheel which receives laser radiation and is controlled to rotate. The color wheel comprises a base plate, wherein a fluorescence area and a transmission area are formed in the base plate; the fluorescence area comprises fluorescent powder and is used for being excited to generate fluorescence; the transmission area is used for transmitting laser; a color filter is arranged in the partial base plate surface area which corresponds to the fluorescence outlet side and is used for filtering the transmitted fluorescence, so that the color filtering effect is guaranteed, use of a filtering device is saved, the technical problem that an optical system, particularly a light source, is large in size is solved, and the color wheel is multifunctional. The invention also provides a laser light source structure applying the color wheel. The light source size and system control complexity can be reduced, and the product competitiveness is improved.

The invention discloses an under-actuation exoskeleton recovery mechanical hand which comprises a thumb joint assembly, an index finger joint assembly, a middle finger joint assembly, a ring finger joint assembly, a little finger joint assembly, a motor first assistant supporting plate, a finger bend-stretch drive motor set, a finger sway drive motor set, a motor second assistant supporting plate, a palm assembly and a palm fixer, wherein the thumb joint assembly, the index finger joint assembly, the middle finger joint assembly, the ring finger joint assembly and the little finger joint assembly are connected to the palm assembly; and the mechanical hand can be used to achieve recovery training of five fingers of a patient and can also achieve bending, unbending and left-right swaying of a single finger. An under-actuation form is adopted; the single finger is driven by two motors; the freedom degree is lower than the freedom degree of the single finger; power is transmitted by a flexible belt and a rope; and the mechanical hand is characterized by a simple structure, lower control complexity and higher motion flexibility.

The invention discloses a braking force distribution method of an electromobile, and belongs to the field of electromobiles. In order to solve the problems that when the electromobile brakes on a pavement of a low attachment coefficient, a motor is controlled to reduce energy recovery, the control complexity is increased, and the safety of the electromobile is reduced, the method is provided. Themethod comprises the following steps that according to braking intensity, the brake force of front and back wheels is distributed; the brake intensity, battery SOC and the total demand brake force aretaken as input, and the proportion of regenerated braking force to front-wheel braking force is output through a fuzzy controller; the regenerated braking force is subtracted from the front-wheel braking force, and friction braking force born by front wheels is obtained; a slip rate threshold value is set, the actual slip rate is taken as input, through backstepping control, the proportion of theregenerated braking force is reduced, and when the actual slip rate exceeds a required slip rate, the braking quota distributed to a driving motor is reduced through backstepping control; according to the method, on the pavement of the low attachment coefficient, energy recovery can be provided as much as possible, and the safety of the electromobile can be kept.

The invention provides a control system for realizing parallel-connection circulating charging of multiple sets of lithium batteries and a method of the control system. The control system at least comprises a charger, the multiple sets of lithium batteries, a charging loop and a communication line set, wherein the multiple sets of lithium batteries and the charger are connected in parallel through the charging loop, and the charger communicates with each lithium battery through the communication line set. The control system for realizing parallel-connection circulating charging of the multiple sets of lithium batteries and the method of the control system can guarantee that each set of lithium batteries is fully charged with electricity under an unattended condition, can obviously reinforce the durability of the lithium batteries, prolong the recycling service life of the battery packs, and meanwhile obviously improve the utilization rate of the charger on the premise of not increasing the control complexity of a charging system and development cost.

The embodiment of the invention provides an impedance control method and device, an impedance controller and a robot. The method comprises the steps of acquiring joint motion information and joint stress information of a mechanical arm in a joint space and actual interaction force received by a tail end, and solving actual motion information of the tail end in a task space according to the joint motion information; calculating a corrected expected trajectory by using environmental information and tail end expected interaction force, carrying out calculation to obtain an impedance control moment according to the joint stress information, the actual interaction force, the actual motion information and the tail end expected information containing the corrected expected trajectory, determininga compensation moment according to a nonlinear term in a constructed dynamic equation, and therefore controlling the joint moment of the mechanical arm. According to the technical scheme, the impedance control law is corrected to realize directional decoupling impedance control, so that the interaction between the tail end and the environment is safer and more compliant, and the force control precision can be improved; and control complexity can be simplified through the nonlinear term in the compensation dynamic equation

The present invention discloses a device control method and device, belonging to the intelligent control technology field. The method comprises: collecting biological feature information; obtaining the control operation corresponding to the biological feature information; and controlling a smart home device to execute a presetting function according to the control operation, wherein the smart home device includes at least one of a smart household appliance, a smart window and a smart curtain. The problems are solved that the control process is tedious and the user operation complexity is high because the user needs to control the smart home device to execute fixed functions through a fixed button when a smart device is used in the prior art; and moreover, the effects are reached that the smart home device is controlled to execute the presetting function according to the control operation corresponding to the user biological feature information to reduce the control complexity and the smart home device and simplify the control process.