30results about How to "Control posture" patented technology

The present invention relates to a track control system for hydraulic excavator working equipment and its method. Said system includes the following main components: DSP, moving arm angle detection mechanism, bucket arm angle detection mechanism, bucket angle detection mechanism, hydraulic cylinder, engine, working equipment and its driving cylinder and CAN bus. Said invention also provides the concrete steps of said control method. It can implement automatic control of hydraulic excavator working equipment, and can accurately and stably control the position and attitute of said hydraulic excavator working equipment so as to raise its working efficiency.

The permanent magnetic double crawler robot for washing hull surface has permanent magnets fixed onto its double crawler for adsorption onto hull surface and a remote control device to realize the overwater and underwater crawling and hull cleaning operation. The permanent magnetic double crawler robot is different from available hull surface cleaning machine (robot) in that it has adsorption and walking functions originated from the double crawler comprising driving chain wheel pair and permanent magnetic adsorption unit. The permanent magnetic double crawler robot is different from available wall-crawling crawler robot in that it has specific structure with two row of chain wheel pairs in each crawler resulting in improved smoothness and no crawler breaking fault and permanent magnetic adsorption unit suitable for hull surface operation. In addition, the robot is provided with three telescopic brush assemblies, etc. suitable for underwater operation.

The present invention relates to a method of the 3D track simulation for a miniature aircraft under urban surroundings and belongs to the field of the 3D real-time route navigation technology for a miniature aircraft. The following modules are set in a computer: a map digitalized module, which digitalizes the 3D model of urban surroundings including threat points, buildings, the departure and target points of a miniature aircraft that is inputted by the graphical user interface (GUI), map parameters and the coordinate of a candidate navigation point composed of the 3D model of urban surroundings and the map parameters; a flight path programming module, which inputs the data from the map digitalized module, calculates the overall route index that takes the flight resource consumption rate and the survival rate into consideration, figures out the most feasible route using network optimizing algorithm under the condition of taking barriers into consideration, and then smooths the bevel at turnings and generates a realtime flight orbit; a data-collecting module, which collects the coordinate values of the aircraft positions and postures outputted by the flight path programming module and forms a posture coordinate value including orthogonal coordinate variables X, Y and Z, a pitch angle h, a yawing angle p and a roll angle r. The present invention saves flight resources and improves flights simultaneously.

The invention discloses an inner system for controlling the gestures of an underwater robot, comprising a main controller connected with an adjustment mechanism, a gesture sensor, and an upper computer controller, wherein the adjustment mechanism is a balance adjustment mechanism arranged inside the underwater robot, and comprises a gravity slider, a double-shaft drive motor, a worm, a guiderail, a slide bar, a limit switch and a mechanism platform; the double-shaft drive motor is connected with the worm to drive the worm to rotate bidirectionally; the worm drives the slide bar to perform planar movement through the transmission of a lead screw; one end of the slide bar is connected with the lead screw of the worm and penetrates the gravity slider, while the other end thereof is connected with the guiderail by a slider and drives the gravity slider to move in a plane so as to realize the gravity adjustment of the underwater robot and control the transverse swing and longitudinal incline gestures of the underwater robot. The control system for gestures can be widely applied to the gesture control of the underwater robot.

The invention relates to a construction method of a shield close-range undercrossing underground excavated tunnel of a composite stratum. The construction method comprises the steps of tunnel construction preparation; exit and entrance line underground excavated tunnel construction preparation; monitoring and measuring preparing work before crossing; control measures in the process of shield crossing; segment reinforcement in the shield tunnel; monitoring frequency control; and patrol control in a hole. The construction method has the beneficial effects that the method is simple in step, reasonable in design, easy and convenient to construct, low in input cost and high in implementation of actual engineering operation; through the construction method, the undercrossing tunneling efficiencycan be improved, and the posture of a shield tunneling machine is controlled, so that the possibility of tunnel accidents is reduced, and a favorable foundation for following successful crossing is laid; and the practical value is high, the using effect is good, compared with an existing construction method of undercrossing an underground excavated tunnel, the construction period is shortened, and the construction cost is greatly reduced.

The invention discloses a cone top cover pull type recovery sub-orbital carrier rocket, which belongs to the technical field of spaceflight rockets, and comprises a primary rocket body, a cone top cover arranged at the upper end of the primary rocket body, and a recovery power device, a load is accommodated in the cone top cover; the power recovery device at least comprises a power recovery engine and a power recovery cover arranged on the outer side of the power recovery engine, an engine jet pipe is arranged on the power recovery engine, and the orientation of the engine jet pipe is fixedly arranged or can be adjusted to be downward or outward obliquely downward; the two recovery power devices are symmetrically arranged on the outer side face of the upper portion of the first-stage rocket body or the outer side face of the cone top cover on the two sides. According to the cone top cover pull type recovery suborbital carrier rocket, the technical problems that in the prior art, a landing point is uncontrollable and recovery is difficult are solved, the test environment of ground launching, flight and suborbital flight can be provided, and an environment test in a real state and test services of the environment test can be provided for research and development of aerospace products.

The invention discloses a four-vector ducted loading airship which is characterized in that the four-vector ducted load-carrying airship comprises a buoyancy air bag, the buoyancy air bag comprises amiddle air bag (1) and outer side air bags (2) which are symmetrically arranged with the middle air bag (1) as the main axis, and the middle air bag (1) and the outer side air bags (2) are arranged inparallel; wings (3) are symmetrically mounted at the front parts and the tail parts of the outer side air bags (2) respectively, and duct power devices (4) are mounted at wing tips of the wings (3);the loading airship further comprises a nacelle (8), an empennage, a solar cell array (10) and an internal mechanism or air cushion landing device (12); the solar cell array (10) is mounted at the upper part of the middle air bag (1); and the air cushion landing device (12) is mounted at the bottom of the buoyancy air bag. Pneumatic lifting and buoyancy are combined, the loading capacity of the airship is improved, and meanwhile, vertical take-off and landing, level flight hovering and maneuvering flight of the airship are controlled.

Provided in the invention is a method for calculating the gear cutting movement trajectory of a splitting type equal-base bevel gear wheel. On the basis of the theory of the equal-base circular-curvebevel gear wheel, a splitting type gear cutting processing coordinate system is established according to characteristics of tooth surface forming and each instantaneous cutter position attitude of thetooth surface is analyzed; calculation and coordinate conversion are carried out by a cutter axis vector and a cutter core coordinate, so that a cutter position under a wheel blank coordinate systemis obtained. Each instantaneous cutter position during gear cutting processing is calculated by combining the structural layout of a general machine tool and an installation position relationship between a split wheel blank and a machine tool; and then post-processing is carried out to obtain an expression function of a machine tool motion coordinate during numerical control gear cutting is obtained. According to the invention, a problem that processing can not be carried out when the revolution center of the split type wheel blank of the equal-base bevel gear wheel falls beyond the general numerical control machine tool and thus is not overlapped with a certain revolution axis of the machine tool is solved.

The invention discloses a longitudinal motion control method for a hydrofoil boat. The method comprises the steps of: establishing a state equation for a hydrofoil boat according to the longitudinal motion characteristics of the hydrofoil boat; and designing a robust controller, enabling the estimated time delay value to approach to a real time delay value by utilizing a robust estimation controlalgorithm, wherein the estimated hydrofoil boat state model approaches the real hydrofoil boat motion state, so that when the estimated hydrofoil boat motion state follows a given reference state, thereal state of the hydrofoil boat can still follow the given reference state in the presence of sensor network communication delay, and the hydrofoil boat motion state is stable. According to the method, the estimation control algorithm is adopted to research the estimation method of the communication time delay, the real-time performance of the system is improved, the system can rapidly control the attitude of the hydrofoil boat, and the efficiency is improved. Robust control is adopted, interference of sea waves on the hydrofoil boat is considered, the stability of the system is greatly improved, and adjustment of the posture of the system is facilitated to a large extent.

The invention discloses a motion control system of a spherical robot having visual feedback and a motion control method thereof. The motion control system comprises a spherical robot body, a control system which is installed on the spherical robot body and an upper computer which wirelessly communicates with the control system. The control system comprises a core control system, a performing system, a sensor system, an image processing system and a power supply system which are electrically connected with the core control system, and a communication system which performs wireless transmission with the core control system. The performing system, the sensor system, the communication system and the image processing system are electrically connected with the power supply system. According to the motion control system of the spherical robot having visual feedback and the motion control method thereof, the inertia measurement unit data are processed so that accurate acquisition of attitude information can be realized; and the speed and the attitude of the spherical robot can be controlled and rectilinear motion and arc turning motion of the robot can be realized.

The invention discloses a bale filling machine which comprises a frame, a drawing head, a front wheel and rear wheels. The frame is provided with a hand rocking lifter, a pushing tray mechanism, a portal frame, a hydraulic oil tank, a hydraulic pump and a power mechanism. The frame is provided with a guide rail for the pushing tray mechanism to slide. A trigger is arranged in the pushing tray mechanism. The portal frame is arranged behind the pushing tray mechanism. The portal frame is provided with a bag opening mechanism and a hydraulic hand control valve assembly. The hydraulic hand controlvalve assembly is connected with a hydraulic system. The rear wheels are composed of a left rear wheel and a right rear wheel. The left rear wheel and the right rear wheel are connected through a rear wheel shaft. The rear wheel shaft is provided with a rear wheel shaft sleeve in a sleeving manner. The two rear wheels are fixedly connected through a rear wheel support and the frame. Portal frameinclining hydraulic cylinders are arranged on the rear sides of stand columns on the two sides of the portal frame correspondingly. Piston ends of the portal frame inclining hydraulic cylinders are connected with the rear wheel support in a hinged manner. The other ends of the portal frame inclining hydraulic cylinder are hinged to the stand columns on the two sides of the portal frame. Portal frame inclining limiters are arranged at the left end and the right end of the rear wheel shaft sleeve correspondingly.

The method for controlling the sonar is applied to a control device, the control device is loaded on a ship, and the method comprises the steps that after a specified request is obtained, a target cabin door of the ship is indicated to be adjusted to a target state, a cabin corresponding to the target cabin door is used for storing the sonar, and the specified request is used for requesting to adjust the sonar to a first pose; the target state corresponds to the first pose; and when the target cabin door is adjusted to the target state, controlling the sonar to be adjusted to the first pose. By means of the method, the problems that the sonar cannot be effectively controlled on ships such as an unmanned ship, the sonar can only be kept in the using state of stretching out of the ship all the time after being installed on the ship, and the execution efficiency and navigation of the ship are affected can be solved.

This continuously variable transmission (10) is obtained by winding, around a drive sheave (KS) and a driven sheave (JS), a continuously variable transmission belt (3) in which a plurality of metal elements (1) are stacked and supported on an endless ring (2). In at least one of the metal elements (1), flange parts (113a, 124a) are formed on a head part (11) positioned at an outer peripheral side of the endless ring (2) and a trunk part (12) positioned at an inner peripheral side of the endless ring (2). The continuously variable transmission (10) is provided with a fluid supply device (4) which, during movement of the continuously variable transmission belt (3) from the driven sheave (JS) to the drive sheave (KS), sprays lubricating oil (4aw, 4bw) in a movement direction (the direction of arrow FB) of the continuously variable transmission belt (3), towards the flange parts (113a, 124a).

The invention relates to a long-distance chassis mechanism and an AGV. The long-distance chassis mechanism comprises a chassis body. The front driving assembly is arranged at the front end of the chassis body and is suitable for driving the chassis body to move and turn; the at least two rear driving assemblies are arranged at the rear end of the chassis body and are symmetrically arranged relative to the chassis body; and the turning detection assembly is arranged at the front driving assembly and is suitable for detecting the turning angle of the front driving assembly, transmitting signals to the two rear driving assemblies and controlling the speed of the rear driving assemblies, and the effect of accurately controlling the walking route and posture of the AGV during turning is achieved.

The invention discloses a construction method for shield tunneling under an existing station in a silt layer, which comprises the following steps: step 1: removing the portal (1) of the existing station (2); step 2: removing the existing station ( 3) and the existing station (2) for reinforcement; step 3: the shield machine passes through the reinforcement area of ​​the starting end of the existing station (3); step 4: the shield machine passes under the floor of the existing station (3) range, and carry out synchronous grouting and secondary grouting during the underpass; step 5: the shield machine passes through the existing station (3) and exits the end area of ​​the existing station; step 6: the shield machine exits the existing station (3) ) and grind the retaining piles of the existing station (3). The invention can reduce the impact of disturbance on the silt layer soil during the tunneling process of the shield machine, effectively control the attitude of the shield machine, reduce the impact of ground subsidence, reduce construction risks, and speed up the construction period.

A design method of an attitude subsystem controller for attitude angle control input saturation is provided, a double-power reaching law sliding mode controller based on an index observer is designed in combination with the index observer and a double-power reaching rate sliding mode control method for a quadrotor unmanned aerial vehicle attitude subsystem; a more accurate attitude angle of the four-rotor unmanned aerial vehicle can be obtained through the designed controller, and the attitude of the unmanned aerial vehicle can be better controlled; an expected attitude angle is given and input into the double-power approaching rate sliding mode controller based on the index observer, interference signals observed by the index observer in the controller are input into the attitude subsystem for interference compensation, and a new attitude angle can be obtained through the attitude subsystem. A new attitude angle signal is input into the designed controller again, closed-loop control is formed, and real-time updating is carried out. The problem of attitude angle control input saturation can be solved, the buffeting defect caused by sliding mode control is weakened to a certain extent, and the control precision and stability of the system can be improved.

The invention discloses a cover type spaceflight rocket, which relates to the technical field of spaceflight rockets, and comprises a first-stage rocket body, a cone top cover arranged at the upper end of the first-stage rocket body, and a power recovery device, the conic top sleeve cover sequentially comprises a conic top cover and a sliding rail cylinder cover from top to bottom; the cone top cover sequentially comprises a scalloped segment part and a shell section from top to bottom; the sliding rail cylinder cover comprises a sleeve, a sliding rail and a load support. The upper portion of the sleeve is connected with the lower portion of the shell section, the lower portion of the sleeve is connected with the load support, and the sliding rail is arranged on the inner side face of the sleeve. The cone top cover, the sleeve and the load support jointly define a space which can be opened and closed and is used for containing a load, and at least one part of the load is slidably connected with the sliding rail in a matched mode. The cone top sleeve cover and the first-stage rocket body are integrally recycled, and a pull type recycling mode is adopted, so that stable and accurate landing is ensured; the device can be applied to tests of ground launch, flight and sub-orbit flight.