1852results about How to "High movement precision" patented technology

A wearable input device includes a body and a soft battery. The body is connected to the soft battery to form a collar range, and the soft battery surrounds a hand of a user. The soft battery supplies an electric power to a finger-contact control module and a wireless transmitter in the body, such that the finger-contact control module senses a movement of an object (for example, a finger) on the body, and generates a control signal corresponding to a moving position of the object, and then the wireless transmitter transmits the control signal to a computer host, thus manipulating a cursor on an operating system frame of the computer host.

A robot aided surgical system for the bone setting operation with the locking intramedullary nail is composed of multifunctional automatic operation bed, robot, bone setting regulator on said robot, bone fixing mechanism, high-accuracy full-automatic X-ray machine with C-shaped arm, navigation robot, robot controller, master hand control station, and slave hand control station.

The invention provides an automatic assembly machine for an infusion apparatus, and belongs to the technical field of medicinal instruments. The automatic assembly machine solves the problem of low automation degree of the conventional infusion apparatus assembly machine. The automatic assembly machine for the infusion apparatus comprises a frame, wherein the frame is glidingly connected with a feeding sliding table; a feeding driving mechanism is arranged between the frame and the feeding sliding table; two sides of the feeding sliding table are fixedly provided with a plurality of pairs of clamping stations distributed opposite; the inlet end of the feeding sliding table is provided with an infusion long tube feeding device; one side of the feeding sliding table is sequentially providedwith a flow box assembly device, a switching wheel assembly device, an infusion short tube assembly device and a filter assembly device; the other side of the feeding sliding table is sequentially provided with a dropping bottle assembly device, a two-way tube assembly device, an infusion medium tube assembly device and a bottle inserting needle assembly device; and the outlet end of the feeding sliding table is also provided with an unloading device for taking the assembled infusion apparatus assembly out of the clamping station. The automatic assembly machine for the infusion apparatus has high positioning accuracy, accurate clamping position and high automation degree.

The invention relates to a free 6-UPS three-linkage parallel robot, belonging to the robot and mechanical producing area. The invention is characterized in that: three couples of straight driving branches are arranged in symmetry right triangle between the upper platform (1) and the base (2), while each couple comprises: two same SPU synchronous flexible driving branch while the upper end of each branch has a ball couple, the middle has a moving couple and the lower end has a universal couple connected to the base (2); the moving couple is formed by a mechanical or hydraulic synchronous flexible driver; the distance between two ball couples of each couple of straight driving branch is the same as the distance between two universal couple vertical axles (9). The invention is characterized in less freedom, easy control, large working space, simple structure and high accuracy. The invention can be used in large radio telescope, three-dimensional measure and sensor, etc.

The invention relates to a three-degree-of-freedom parallel mechanism type dual head for five-axis machine tools, which comprises a static platform, a movable platform and four branch chains connected with the two platforms. A control method includes seven steps: (1) a Jacobian matrix is solved according to the inverse solution formula of the symmetric structure, and a corresponding model is established; (2) a Jacobian matrix is solved according to the inverse solution formula of the asymmetric structure, and a corresponding model is established; (3) a corresponding variable-structure controller is designed; (4) the tracking locus and external load of the dual head are set, and the internal force threshold of each branch chain is set; (5) the force feedback value of a force sensor on each non-redundant branch chain is acquired and compared with a set threshold; (6) according to the Jacobian matrix in the first step, the driving force of each motor is calculated, force control is adopted on the non-redundant branch chains, and position-tracking control is adopted on the redundant branch chains; (7) according to the Jacobian matrix in the second step, the driving force of each motor is calculated, position-tracking control is adopted on the non-redundant branch chains with the force feedback values larger than the threshold, and force control is adopted on the redundant branch chains and the other two non-redundant branch chains.

Apparatus (10) for generating motion around a remote center of motion (RCM), comprising a distal link (L12, LR) arranged to revolve about the remote center of motion and to translate through the remote center of motion, a proximal link (L10, LI) arranged to revolve about a proximal center of motion (LCM), coupled to a base link, through a rotational joint (150) and a sliding joint (181), a first mechanism comprising a first link (L9, BE) pivotally coupled to the proximal link (L10) and to the distal link (L12) and operable to transfer motion of the proximal link relative to the proximal center of motion to a motion of the distal link relative to the remote center of motion by maintaining a parallelogram (PAR1), and a second mechanism operable to move the first link with two degrees of freedom in a plane parallel to the plane of motion of the proximal link, characterised in that the second mechanism comprises one link or a serial connection of links (L4, L8, L3, L7, L2, L6) connecting the base link to the first link, configured to have an orientation of instant motion which is different from an orientation of instant motion of the proximal link (L10), relative to the base link.

The invention relates to a 3D (three-dimensional) printing system structure. The 3D (three-dimensional) printing system structure comprises a lifting printing platform, a dual-screw dual-optical-axis Z-shaft driving mechanism, an X-shaft drive mechanism, a Y-shaft drive mechanism as well as a stationary object carrying platform, wherein the printing platform is provided with an X-shaft drive motor and a Y-shaft drive motor; the two motors are respectively connected to a pair of driven bearings by synchronous belts at two ends of the driving shaft; double slide shafts in the X direction and the Y direction are both provided with slide seats; two pairs of slide seats are respectively connected by an X cross beam and a Y cross beam, and the two cross beams respectively penetrate through a 3D printer head; a driving motor of the dual-screw dual-optical-axis driving mechanism and the driving shaft are connected by the synchronous belt; the position of the driving motor can be adjusted randomly. The X-shaft drive mechanism, the Y-shaft drive mechanism and the driving shaft operate individually, so that the motion modulation is reduced; the dual-screw dual-optical-axis driving mechanism has favorable stability, so that the printing platform is stressed in a balance manner; the driving in each direction is stable; the 3D printing precision is improved.

The invention relates to an operating robot comprising a base, a first arm, a second arm, a main shaft, an oscillating arm, a first rotary joint, a second rotary joint, a third rotary joint and a fourth rotary joint. The base is connected with a first arm shaft through the first rotary joint; the first arm is connected with a second arm shaft through the second rotary joint; the second arm is connected with the main shaft through the third rotary joint; the main shaft is connected with an oscillating shaft through the fourth rotary joint; at least one of the first rotary joint, the second rotary joint, the third rotary joint and the fourth rotary joint comprises a motor and a speed reduction box, wherein the speed reduction box is connected with the motor and is used for decreasing the rotation speed outputted by the motor, increasing the moment of force and driving the first arm, the second arm, the main shaft or the oscillating arm to move, and the motor is used for supplying power. The components of the novel operating robot are connected into a whole body by the four rotary joints, thus the novel operating robot has simple structure. In addition, the motor of the rotary joint is matched with the speed reduction box to control, thus the operating robot is easy to operate.

The invention discloses a parallel mechanism capable of realizing four-degree-of-freedom movement. The mechanism is characterized in that a subangle mechanism or the combination of the subangle mechanism and a parallelogram structure is adopted for a moving platform, thus the moving platform is of a rhombus structure, the relative positions of virtual central points of the structure are not changed, and only the deformation movement of relative extension and compression along the diagonal direction can be performed. The mechanism provided by the invention has the advantages of flexible movement, uniform stress, high movement accuracy; the relative movement is converted into rotation movement of an actuator through an angular magnification mechanism, moving pairs are not used in the mechanism, the defects such as nonuniform stress, great friction, short service life and the like are avoided, the integral structure has good rigidity and stability, high-speed movement can be realized easily, and requirements of complex grabbing operations are satisfied; and the mechanism has high reorganization, multiple configurations can be realized, and the clamping and rotation operations can be implemented, thus multiple choices are provided for practical applications.

The invention discloses a claw beam lifting mechanism for a forging manipulator, applied to forging industry. The claw beam lifting mechanism mainly comprises a front lifting part, a rear lifting part, a synchronous connector rod, a lifting cylinder, a pitching cylinder and a buffering part, a front fixing shaft in the front lifting part, a rear fixing shaft in the rear lifting part and the lower end of the lifting cylinder are respectively connected with a large machine frame through hinges, the synchronous connecting rod is arranged overhead and always moves in a range above a connecting line of a front fixing hinge point and a rear fixing hinge point of a claw beam lifting and pitching mechanism and the large machine frame, front ends of two buffering cylinders are respectively connected with tow front lifting connecting rods through hinges, the rear ends of the two buffering cylinders are respectively articulated with two ends of a compensating beam, and the middle part of the compensating beam is connected with the middle part of the large machine frame by a hinge through a beam fixing shaft. The claw beam lifting mechanism has novel and scientific design concept, reasonable stress application, high movement precision, simple structure, low manufacturing cost and is convenient to install, adjust and maintain. The invention not only reduces the manufacturing cost of the lifting mechanism under the condition of ensuring the movement precision, but also thoroughly solves the problems that the front fixing shaft and a shaft sleeve matched with the front fixing shaft are worn easily and a side plate of a machine needs to be thickened specifically.

An adjustable experimental platform with 3,4,5-SPS type parallel mechanism for robot, machine-tool, or sensing element is disclosed. 3,4 or 5 linear drive branches are distributed between upper platform and base in polygonaly symmetrical mode. One of 4 or 5 linear drive braches is arranged in the center of platform and base. The both ends of each branch have a ball set consisting of the rotation set A formed by connecting one end of said branch with ring frame, the rotation set B formed by connecting ring frame with supporter, and the rotation set C formed by connecting supporter with axle sleeve. The vertical and transverse pins are used to change the freedom of ball set.

The invention discloses a three-freedom-degree series-parallel omni-directional mobile transfer robot. The transfer robot comprises an omni-directional mobile chassis, a main slewing gear, a lifting device, parallel working arms, a tail end slewing gear and a clamp holder. The omni-directional mobile chassis is used for executing walking and steering tasks, the lifting device is connected with the omni-directional mobile chassis through the main slewing gear, the parallel working arms installed at the top of the lifting device are connected with the clamp holder through the tail end slewing gear and are used for adjusting the operation posture of the clamp holder. A series-parallel is adopted in a robot body, and the omni-directional mobile transfer robot has the advantages of being high in rigidity, large in carrying capacity, high in motion precision, large in operation space and the like; the clamp holder has six motion ranges and three independent motion freedom degrees and is high in motion flexibility; the tri-drive omni-directional mobile chassis can realize walking tasks of moving forward, or moving backward, or turning left or turning right, and is reasonable in structural design, and high in anti-overturning ability. In addition, the omni-directional mobile transfer robot has the advantages of being convenient to manipulate, and high in adaptability to road conditions.

A method and system for an efficient transcoding of a sequence of input images in a first format to a sequence of output images in a second format are described. The method utilizes the encoding block mode, the motion vectors and the residual information extracted during the decoding of the input image that are effectively reused to select an optimal transcoding block mode and to perform selective refinement of motion vectors. A corresponding system for video transcoding is also provided.

A position detecting apparatus and method used in a navigation system, which can improve positional accuracy and bearing accuracy even in a system equipped with few sensors, are provided. A position detecting apparatus used in a navigation system for detecting a vehicle position includes: a sensor unit including a vehicle speed sensor, an acceleration sensor, and an angular velocity sensor; and a dead reckoning calculating unit for calculating state quantity inclusive of a current vehicle position, a vehicle speed, and a vehicle attitude angle based on a signal output from each of the sensors at a predetermined periodic interval. The dead reckoning calculating unit includes: a movement calculating unit for calculating a movement during a period from a previous state quantity calculation time up to a current state quantity calculation time; a change amount detecting unit for calculating an amount of change in vehicle attitude; a movement resolving unit for resolving the movement into a vehicle longitudinal component, a vehicle lateral component, and a vehicle vertical component based on the amount of change in vehicle attitude; and a state quantity calculating unit for determining, by calculation, a vehicle position at the current state quantity calculation time using each of the components.

A method for determining a motion estimate, comprising: capturing at least two digital images of a scene at different capture times; designating one of the digital images as a reference digital image; designating a plurality of image regions; determining motion estimates for each image region by shifting the image regions within the non-reference digital images according to each of a plurality of spatial offsets relative to the image region within the reference digital image, computing merit function values for each spatial offset providing an indication of a difference between the image region in the reference digital image and the shifted image regions, computing a fitting function that provides an estimated merit function value as a function of spatial offset; and determining the motion estimate responsive to the determined non-integer spatial offset. A combined motion estimate is determined using weighting coefficients determined responsive to the shapes of the fitting functions.

The invention provides a two-DOF moving shunt connection decoupling mechanism. The whole mechanism is fixed on a base platform by a guideway; two Y-direction guideways and a Y-direction driving device are fixed on an XOY basic platform; a Z-direction guideway is fixed on a YOZ basic platform; a Y-direction sliding block is fixed on the Y-direction guideway; two lower sliding supporters are respectively fixed on corresponding Y-direction sliding blocks; an upper supportor is connected with the two lower sliding supporters by a parallelogram mechanism consisting of 8 supporting rods and a rotation pair; an X-direction guideway is fixed on the upper supporter; an X-direction driving device is fixed on the Z-direction guideway; furthermore, a shell of the X-direction driving device is fixedly connected with the upper supporter; a movable platform is fixed on the X-direction guideway. The invention combines an isosceles triangle two-force member truss structure and the parallelogram structure, thus leading the final two-DOF moving shunt connection mechanism to have the advantages of implementing the decoupling of two-DOF, stable structure, high rigidity, good forcing characteristic, high transmission efficiency, simple structure, easy control, high operation precision and low cost.

A first angle-detecting unit outputs a first rotation angle according to the rotation angle of a rotation shaft of a servo motor. A second angle-detecting unit outputs a second rotation angle according to a rotation angle of a rotation shaft of a reduction gear. A torque calculation unit calculates the torque acting on the rotation shaft of the reduction gear according to the angle difference between the first rotation angle and the second rotation angle. An angle-control unit generates a torque reference value according to the difference between the angle reference value and the second rotation angle. A torque control unit generates a current reference value according to the difference between the torque reference value and the torque.

The invention discloses an indoor track type intelligent patrolling robot system based on a combined track. The system comprises the combined track and a robot body. The robot body comprises a drive system, a detecting assembly, a holder, a synchronous belt system, a movable platform and a control system, wherein the control system is arranged on the movable platform, the holder is fixed to the upper end of the movable platform, the detecting assembly is fixed to the holder, the synchronous belt system is fixedly connected with the combined track, the driving system is fixed to the movable platform, the movable platform is placed on the combined track, and the drive system provides power to enable a robot to move along the combined track. The wall-mounted combined track is adopted, the robot can move in two or more vertical planes, the combined mode meets the diverse and complex detecting requirements of indoor equipment detection, and according to the actual detecting requirement, a horizontal track or a vertical track can be independently taken out to independently form a system detection robot system.

An encoding target region in an image can be partitioned into a plurality of prediction regions. Based on prediction information of a neighboring region neighboring a target region, the number of previously-encoded prediction regions in the target region, and previously-encoded prediction information of the target region, a candidate for motion information to be used in generation of a predicted signal of the target prediction region as a next prediction region is selected from previously-encoded motion information of regions neighboring the target prediction region. According to the number of candidates for motion information selected, merging block information to indicate generation of the predicted signal of the target prediction region using the selected candidate for motion information and motion information detected by prediction information estimation means, or either one of the merging block information or the motion information is encoded.

The invention provides an inspection system and an inspection method of a valve hall robot based on a video monitoring linkage system. The inspection system comprises a linkage analysis control host, a communication server and an auxiliary fixed point monitoring subsystem; an inspection robot comprises a robot terminal system; the robot terminal system comprised a track; a moving mechanism, a motion driving mechanism and a detection mechanism are arranged on the track; the inspection system and the inspection method have the advantage that real-time unmanned detection requirement of valve hall equipment is met; by coordinating inspection of the robot with a fixed point camera, the problems that the monitoring range is limited and the geographic position of substation equipment is not convenient for arrangement of monitoring points are solved; the problems that the abnormality cannot be autonomously identified as well as intelligent linkage security and protection, firefighting and online equipment management system are solved; fires are monitored by using a mixing mode of a visible light video and a thermal infrared imager, so the fires can be reduced; according to the inspection system and the inspection method provided by the invention, by adopting double detection of the visible light video and an infrared thermal video, the false alarm rate of fire alarms is reduced, and the processing efficiency of the fire alarms is improved.