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598results about How to "Guaranteed adaptability" patented technology

Motor stalling detection method and system

The invention provides a motor stalling detection method and system. The motor stalling detection method comprises the steps that when initialization of a preset motor stalling threshold algorithm is completed and it is determined that a motor is in an operating state, the maximum current value of the motor in a first preset period of time is detected and is led into the preset motor stalling threshold algorithm to enable a current motor stalling current threshold to be obtained, and the adaptability of the current motor stalling current threshold to the current operating environment of the motor is guaranteed; then, when it is judged that the current value of the motor in a second preset period of time is constantly larger than the current motor stalling current threshold, a motor stalling signal is designed to be one, the motor is controlled to stop rotating, whether motor stalling of a system occurs can be detected more accurately and more timely when the motor works in different operating environments, the situation that the motor is burnt down due to the fact that the stalling current of the motor is larger than the rated current of the motor for a long time is avoided, and thus it is guaranteed that the motor can operate safely in different operating environments.
Owner:BEIJING JINGWEI HIRAIN TECH CO INC

Hydraulic peristaltic pipeline robot traction device

The invention relates to a hydraulic peristaltic pipeline robot traction device, which can provide powerful traction force for robots in pipeline operation such as an oil-gas pipeline, a sewage pipeline and the like. The hydraulic peristaltic pipeline robot traction device mainly consists of an extension cabin, a propelling cabin and a propelling oil cylinder, wherein the extension cabin mainly consists of an extension cabin body, an extension cabin front cover, extension cabin supporting legs, extension cabin brackets, extension cabin supporting rods, an extension cabin supporting leg oil cylinder, a synchronous plate, a synchronous plate slide shaft and an extension cabin rear cover; the propelling cabin mainly consists of a propelling cabin body, a propelling cabin front cover, propelling cabin supporting legs, propelling cabin brackets, propelling cabin supporting rods, a propelling cabin supporting leg oil cylinder, a synchronous plate, a synchronous plate slide shaft and a propelling cabin rear cover. The hydraulic power is adopted as a power source, sufficient traction power can be provided for a pipeline operation robot, and the successful traveling of the pipeline robot in the pipeline can be guaranteed. The hydraulic peristaltic pipeline robot traction device has advantages of simplicity in structure, high carrying capacity, high reliability, high environmental adaptability and the like.
Owner:BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY

Variable radio frequency signal phase-shifting circuit and its phase-shifting method

The present invention discloses a variable radio frequency signal phase shift circuit, which comprises a 3dB electric bridge. Wherein, the 3dB electric bridge is connected with two resonance circuits. The resonance circuit is composed of a variable capacitance. One end of the variable capacitance is connected with the 3dB electrical bridge through a 50 Omega micro-strip line. In addition, the other end of the variable capacitance is grounded through a 50 Omega micro-strip line. The present invention also discloses a radio frequency signal phase shift method. The radio frequency signal enters into the 3dB electric bridge and then is divided into two totally symmetric paths, which respectively enter into two resonance circuits to adjust the variable capacitance and the 50 Omega micro-strip line of two resonance circuits, accordingly changing two paths of signals transmitting through a first and a second resonance circuit. And then, two paths of signals are reflected to the 3dB electric bridge for secondary synthesis and are output from one isolation terminal of the 3dB electric bridge. The present invention has the advantages of simple structure, easy execution, lower cost, large adjusting range, lower insertion loss and control over phase shift range of a phase shifter and stepping voltage.
Owner:锐德科无线通信技术(上海)有限公司

Box-packed white wine automatic incasing machine

The invention relates to a box-packed white wine automatic incasing machine which comprises a case conveying roller way, a machine frame, a box-packed white wine arraying mechanism, a horizontal-moving lifting system, a case propping mechanism, a gripper, a screw rod, a servo motor, two square guide rails and a box-packed white wine conveying chain plate. An incasing platform, the screw rod, the servo motor and the two square guide rails of the box-packed white wine arraying mechanism are respectively arranged on the machine frame. Four sliding blocks of the horizontal-moving lifting system are matched with the two square guide rails arranged at the upper end of the machine frame. One end of screw rod is connected with the servo motor, and a horizontal-moving lifting support of the horizontal-moving lifting system is arranged on the screw rod in a penetrating mode and fixed with the screw rod through a nut. The gripper is connected with the lower ends of two optical shafts of the horizontal-moving lifting system, and the box-packed white wine conveying chain plate and the case conveying roller way are fixed on the ground and matched with the box-packed white wine arraying mechanism, the horizontal-moving lifting system, the gripper and the case propping mechanism to achieve the function of box-packed white wine incasing. The box-packed white wine automatic incasing machine has the advantages of being wide in applicable white wine box type, accurate in incasing positioning, large in transport load, stable in performance and the like, and the difficult incasing problem which troubles the white wine industry for years is solved.
Owner:WUHAN AUTOMATED ELECTROMECHANICAL TECH

Quadruped robot gait control method based on reinforcement learning and CPG controller

The invention discloses a quadruped robot gait control method based on reinforcement learning and a CPG controller. The quadruped robot gait control method comprises the steps that S1, building a single-leg model and an overall model of a quadruped robot; S2, constructing an actor neural network and a reviewer neural network to train the single-leg model; S3, determining a relative sequential relationship between legs of the quadruped robot and constructing a controller model according to leg movement characteristics; and S4, constructing a foot end motion trail model of the quadruped robot from an output signal of the controller model through mapping transformation, and taking the output of the foot end motion trail model as a gait control signal of the quadruped robot to drive the quadruped robot. According to the method, it is guaranteed that legs of the quadruped robot move strictly according to the time sequence, the gait characteristic of mammals is achieved, meanwhile, it is guaranteed that the trunk of the robot is stable in the moving process, the pitch angle and the lateral angle change range is small, and overturning is effectively prevented; the leg movement has self-adaptability, and a complex control and planning algorithm does not need to be artificially designed.
Owner:SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV

Multi-target economic dispatch method for power system with wind farm

The invention provides a multi-target economic dispatch method for a power system with a wind farm. The method comprises the steps that first, possible wind power output scenes in a dispatch cycle are generated, and the number of the scenes is reduced to S; second, a mathematical model of the method is built, target functions include total electricity generation cost, power balance levels of all the moments of all the scenes and spinning reserve levels of all the moments of all the scenes, and constraint conditions include output upper limit and output lower limit constraints of thermal power units, climbing rate constraints and the minimum start and shut down time constraints; third, fuzzification processing is carried out by building membership functions of all the target functions; fourth, the minimum values of all the membership functions are obtained to serve as global satisfaction degree indexes; fifth, an economic dispatch result meeting the constraint conditions in the second step and enabling the global satisfaction degree indexes in the fourth step to be maximum is solved. The economic dispatch method is suitable for solving the problems about economic dispatch of the power system with the wind farm and the thermal power units, and a plurality of optimization targets are balanced in a dispatch result.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING)

Method for constructing algal phase in prawn culturing pool

The invention discloses a method for establishing the algal phase of a shrimp culture pond, microalgae with the dominance of greater than 0.15 is selected from a culture water body, the microalgae is arranged in culture liquid with the nitrogen source concentration of 261 to 338mumol/L and the phosphorus source concentration of 25 to 32mumol/L, the enlarged culture and propagation are carried out under the culture conditions till the microalgae total biomass which is required by the shrimp culture, algae liquid is further introduced into the shrimp culture pond for the shrimp culture: the temperature is 24 to 27 DEG C; the salinity is 21 to 26; the pH is 7.5 to 8.5; the light intensity is 5500 to 7000Lx, and the lighting ratio is 12: 12 to 14: 10. The microalgae ecological environment of the shrimp culture pond is optimized by establishing the algal phase to cause the balanced culture of various types of microalgae, thereby being conductive to avoiding the single biological diversity of the shrimp pond caused by excessive culture of individual microalgae or group disappearance during the culture process and the situations of drastic change of water environment, deterioration of the quality of the environment of the culture water body, and the like.
Owner:SOUTH CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI

Shield general segment assembling point location determining method

The invention discloses a metro shield construction general segment assembling point location determining method. A shield tunneling machine is used for conducting shield tunneling construction on a construction tunnel along a tunnel central axis from back to front. After the shield tunneling construction is completed for one link, shield segment assembling construction is carried out. Before anylink of shield segment assembling construction is performed, first of all, segment assembling point locations of current shield segments are determined. Processes include the following steps that firstly, selectable assembling point locations are determined; secondly, selection influence indexes and weight coefficients of the selection influence indexes are determined, and the three selection influence indexes and the weight coefficients of the three selection influence indexes influencing segment assembling point location selection are determined separately; thirdly, the selectable assemblingpoint locations are selectively evaluated, wherein according to a weight coefficient method, the selection of all the selectable assembling point locations is evaluated separately, and the segment assembling point locations of the current shield segments are determined. The shield general segment assembling point location determining method is simple in step reasonable in design, convenient to achieve, good in using effect and capable of conveniently, fast and precisely determining the assembling point locations of the general segments.
Owner:CHINA RAILWAY FIRST GRP CO LTD +1

Controller deployment method and system in SDN network, and route computing method and system in SDN network

The invention relates to route computing in an SDN network. The invention discloses a controller deployment method in the SDN network. The method comprises the steps of dividing at least three SDN controllers into at least two levels according to control ranges of SDN controllers, wherein the lowest-level SDN controllers are responsible for directly controlling SDN switches, and the upper-level SDN controllers are responsible for controlling the lower-level SDN controllers; dividing the SDN switches into domains with the number of the lowest-level SDN controllers, wherein the domains are controlled by the corresponding lowest-level SDN controllers; and abstracting networks directly controlled by the lower-level SDN controllers into virtual networks composed of virtual switches, wherein the virtual networks are controlled by the upper-level SDN controllers of the lower-level SDN controllers. Through leveled control of the controllers, the first-level controllers only need to control the virtual networks composed of the next-level controllers; and therefore, the computing load of the SDN controllers in the system can be effectively reduced. The invention also discloses a controller route computing method in the SDN network, a controller employment system and a route computing system.
Owner:NO 30 INST OF CHINA ELECTRONIC TECH GRP CORP

Single crawler type wall climbing robot based on electrostatic absorption principle

The invention discloses a single-crawler type wall climbing robot based on the electrostatic adherence theory, and relates to a wall climbing robot. The invention aims to provide a wall climbing robot which has the advantages of large range adapting to wall surface materials, low noise, smaller volume, small electrostatic adherence device self weight and high moving speed. Flexible aluminum plated film crawlers are adopted as a walking device and an adherence device of the robot. One end of a slide base plate is overlapped with one end of a slide guide plate, and the base plate is connected with an end part of the slide guide plate. One end of a spring is connected with a guiding and positioning rod piece, while the other end is connected with an end part of the slide guide plate. The other end of the slide base plate is perpendicularly connected with the middle part of a driving wheel supporting frame main body of a driving wheel supporting frame, and the other end of the slide guide plate is perpendicularly connected with the middle part of an inducement wheel supporting frame main body of an inducement wheel supporting frame. The wall climbing robot has the advantages of large range adapting to the wall surface materials, low noise, smaller volume, small electrostatic adherence device self weight and high moving speed, and has board application prospect in the aspects of anti-terrorism detection, high building detection and so on.
Owner:SHENZHEN LONGHAITE ROBOT TECH CO LTD
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