7 results about "Right palm" patented technology

The present invention relates to a robot, and particularly to a slag raking robot, which includes a slag raking manipulator. The slag raking manipulator includes a gantry that is fixedly connected to the end of the robot's arm. Left and right hinge shafts are provided at the lower ends of the two columns of the gantry; a cylinder is fixedly arranged under the top plate between the two columns of the gantry; the upper end of a connecting plate is hinged to the driving rod of the cylinder; the lower end of the connecting plate is hinged to a right slag raking claw and a left slag raking claw, and the right palm and the left palm of the right slag raking claw and the left slag raking claw are respectively hinged to the left hinge shaft and the right hinge shaft. Compared with the prior art, the present invention can filter out molten iron faster, reduce the amount of molten iron carried out, and reduce the consumption of molten iron.

The utility model discloses a novel bunt tide, relates to musical instrument technical field, including the tube body, four tuning holes are seted up in the tube body front side bottom, the replaceable contact mouth is provided with three clamping blocks in the array of tube body top end outer wall bottom end outer wall, and the fixed connection of limit stop is provided with in the tube body outer wall close to the position of clamping block, the protection ring is provided with in the tube body bottom end outer wall, the auxiliary mechanism is provided with in the tube body outer wall close to the position of tuning hole, and the auxiliary mechanism includes left -hand auxiliary block and right -hand auxiliary block. The utility model discloses design structure is reasonable, and the left hand index finger and middle finger are placed respectively on the both sides of limit ring B, and the left hand index finger is positioned and is guided to the groove A of placing, and right hand index finger and middle finger hold the tube body and are placed below limit ring C, and right hand thumb is placed in the groove B of placing on limit ring C under the guidance of limit ring C, and contact block A and contact block B support left and right palm while holding the tube body, have the advantage that the hand of player is attached.

The utility model discloses a protective glove for static fit. The protective glove comprises a left glove and a right glove which are paired; the left glove comprises a left palm protection sleeve and a left finger protection sleeve; the right glove comprises a right palm protection sleeve and a right finger protection sleeve; a palm protection pad is arranged on the palm center surface of the left palm protection sleeve; a first palm cut-preventing layer is arranged on the palm center surface of the right palm protecting sleeve. According to the protective glove for static dispensing, different protective modes are arranged according to different structures of the left hand, the right hand and the palm in a matched mode, the cutting-preventing and needling-preventing functions and effects of the glove can be guaranteed, and a user can flexibly conduct vein dispensing after wearing the protective glove.

The present disclosure provides an authentication device based on palm vein data, comprising: a data acquisition device configured to acquire a palm image and obtain palm vein data based on the palm image; a data processing device comprising a left / right palm determination module configured to determine whether the palm image acquired by the data acquisition device is a left palm image or a right palm image based on image features of the palm image; and a data storage module configured to store left and right palm vein data. The data acquisition device acquires left or right palm vein data based on the determination result of the left / right palm determination module and stores the data in the data storage module, with the left and right palm vein data being stored separately. The present disclosure also provides an authentication method, an electronic device, a readable storage medium, and a computer program product.

The utility model discloses a wrist joint movement trainer, and belongs to the technical field of medical instruments. The wrist joint training device solves the problem that in the prior art, when a training device is used by a patient who needs to do activity training on wrist joints of two hands, efficiency is low, the wrist joint training device comprises a left wrist joint training mechanism and a right wrist joint training mechanism which are arranged on a bearing mechanism, and the right wrist joint training mechanism comprises a base. A first rotating mechanism is arranged on the base, a second rotating mechanism is arranged on the first rotating mechanism, a palm model is arranged on the second rotating mechanism, a palm fixing mechanism is arranged on the palm model, and the left wrist joint training mechanism and the right wrist shutdown training mechanism are the same in structure. The palm model of the right wrist shutdown training mechanism is a left palm model, and the palm model of the left wrist shutdown training mechanism is a right palm model. Wrist joint movement training can be performed on the two hands of a patient at the same time, and the training efficiency is improved.

The application discloses a palm vein ROI extraction method and system based on a light network, and the method comprises the following steps: first, inputting a palm vein image into an improved HRnet deep learning key point detection model to position key points; then, positioning a palm vein region of interest and a selected region position through key point coordinates obtained through geometric operation and fine adjustment; in order to correctly select the palm vein region of interest, the left and right palms are distinguished; finally, an affine transformation algorithm is used to obtain a final region containing the vein. Through the method, redundant network branches are deleted, the number of convolution channels is reduced, and a deep separable convolution mode is adopted for a residual block structure to reduce the network parameter quantity; while the key point detection accuracy is considered, the model calculation amount is greatly reduced, and the palm vein ROI extraction speed is accelerated. The application can be widely applied to the field of biometric recognition technology.

The invention relates to the technical field of virtual reality gesture recognition, and provides a Meta XR two-hand cross gesture recognition method based on a virtual point ray, and the method comprises the steps: operating a target application in a virtual reality environment of Meta XR equipment; calling a gesture recognition interface provided by the virtual reality environment, collecting hand skeleton information data of a user, and extracting skeleton nodes of left and right palm centers; taking palm center skeleton nodes of the left hand and the right hand as virtual points, taking forward directions of local coordinate systems of the virtual points as directions of palms, adopting a vector point multiplication method to perform vector operation on the forward directions of the left hand and the right hand, and when a point multiplication result is smaller than a preset threshold value, judging that a double-hand cross gesture exists, and triggering preset interaction feedback in the virtual reality environment. According to the method, the virtual point ray is generated based on the direction information of the palm center skeleton node without depending on the preset gesture configuration of Meta XR, and the two-hand cross gesture is judged through the vector point multiplication operation, so that the accuracy of two-hand interaction recognition is effectively improved.