32 results about "Triangle center" patented technology

A surface light source device having LED clusters arranged in a matrix of rows and columns on a board. Each of the LED clusters includes red, green and blue LEDs arranged in a triangle. The LED clusters are grouped into A, E, C and D, which have the red LEDs located top, right, bottom and left, respectively, from a center of the triangle. The matrix of the LED clusters includes alternating first and second type rows arranged repeatedly from top to bottom of the matrix, terminating with the second type row. The first type rows each have first type cluster arrays of the LED clusters arranged in a repeating order of E, C, D and C from left to right. The second type rows each have second type cluster arrays of the LED clusters arranged in a repeating order of A, D, A and D from left to right.

As set forth herein, computer-implemented methods and systems facilitate employing a single stochastic screen defined up to a specified transition level. The dots at the specified level are connected to form a triangle tessellation with an associated spot function. For up to three colorants, a vector screening technique is employed, which involves a first colorant dot being grown from the vertices, second colorant dot grown from the triangle center, and a third colorant dot grown from the side midpoints. Growth in this manner ensures separation of colorants up to a certain density level. In cases where fourth colorant is to be used at a given pixel, the fourth colorant can be added using methods typically used for clustered screens, such as stochastic screening of the lightest colorant, in order to mitigate color shift sensitivity issues.

The invention discloses a solar energy charging chair. The solar energy charging chair comprises a triangular prism structure and a casing at two end surfaces of the triangular prism structure, wherein the casing is a chair supporting structure, three side surfaces of the triangular prism structure are respectively a solar energy cell panel, a heating surface and a cooling surface, a triangular center of an end surface of the triangular prism structure is provided with a rotation shaft, the casing is internally provided with a controller and a stepping motor, an outer surface of the casing is provided with a heating surface and cooling surface selection button, the selection button is connected with the controller, the controller is connected with the stepping motor, and the stepping motor is connected with the rotation shaft through a moving mechanism to make the triangular prism structure rotate in three sides. The solar energy charging chair is advantaged in that the charging function is realized, an outdoor charging problem is solved, no ground digging is realized through solar energy power supplying, moreover, the heating surface and a reflection surface are added, a comfort temperature chair surface is provided for travelers in summer and winter, and excellent and comfort experience is realized.

A data center network based on a prism structure. Eight switches form a triangular prism unit network structure, including six five-port switches and two four-port switches. First, the top and bottom surfaces are composed of three five-interface switches connected in pairs to form an equilateral triangle with side length L. A four-interface switch is added to the center of the two equilateral triangles respectively, and connected with the other three The two switches are connected in pairs, the switches corresponding to the upper and lower bottom are connected in pairs, and then the three switches at the vertices of the triangle on the bottom are connected to the switch in the upper right corner in turn to form a basic network topology unit. Every switch is connected to a server except the switch in the center of the triangle. Expanding in this manner can form a vertically connected data center network with a base length of NL and h unit layers, where h and N are integers greater than or equal to 1.

The present invention discloses a triangulation ray tracing path searching method. The searching method comprises the following steps: defining a normal vector of each triangular, wherein the normal vector faces outward corresponding to a straight prism, establishing a dot product on a ray direction vector and the normal vector of the triangular, and abandoning a triangular whose dot product is greater than zero; separately acquiring a distance between each ray and each triangular center, and if the distance is greater than a radius of a circumscribed circle of a triangular, abandoning the triangular; for each ray, calculating a signed volume of a polyhedron consisting of three vertexes of the triangular and two endpoints of a line segment, and if a symbol of the volume is the same as a symbol of the ray direction vector, indicating that the ray intersects with the triangular, or otherwise the ray does not intersect with the triangular; and acquiring a distance between each intersection point and a starting point of the ray, and selecting an intersection point that is the closest to the starting point as an end point of a ray line segment. According to the triangulation ray tracing path searching method, computational complexity is reduced, and program execution efficiency is improved.

The invention relates to a spiral welding mesh pipe rolling welding machine. The spiral welding mesh pipe rolling welding machine is characterized in that the bending deformation force of a mesh belt is applied to a mesh belt and a spiral pipe blank through an upper rolling wheel and then is transmitted to small core shafts and lower rolling wheels to enable the mesh belt to be formed through bending in one time between the three rolling wheels (comprising the upper rolling wheel) which are arranged in a triangular shape namely in the peripheral direction. The triangle center is provided with the small core shafts which are parallel to rolling wheel shafts and the small core shafts which are hanging arm servo shafts play roles in assisting forming and sizing diameter. According to the spiral welding mesh pipe rolling welding machine, the bending forming mode is different from the forming mode that a spiral welding pipe forming machine unit or a three-rod veneer reeling machine only presses part of steel plates to be in arc shapes.

The present application provides a three-dimensional model texture map conversion method, device, computer equipment and storage medium, the method projects the vertices of the three-dimensional model facets into the initial target texture map, and calculates each facet in the initial target texture map The barycenter coordinates of the inner pixels, according to the existing original texture map mapping relationship, project the vertices of the 3D model face into the original texture map, and calculate the texture coordinates of the pixels in the original target texture map in the original texture map through the barycenter coordinates of the triangle , establish the mapping relationship from the initial target texture map to the original texture map, convert the original texture map into the actual target texture map, and realize the mutual conversion of any texture map.

The invention discloses a high-strength combined type drain plate. The high-strength combined type drain plate comprises a main plate body and an auxiliary plate body. The main plate body is of a regular hexagon structure. The center of the surface of one side of the main plate body is provided with a first through hole. The centers of the connection lines of the circle center of the first through hole and the six side edges of the main plate body are each provided with a second through hole. The centers of the connection lines of the circle centers of the second through holes and the six side edges of the main plate body are each provided with a third through hole. The centers of triangles formed by the circle center of the first through hole and the side edges of the main plate body in a surrounded mode are each provided with a fourth through hole. First bosses are fixed to the centers of the connection lines of the circle centers of the third through holes and the midpoints of the side edges of the main plate body correspondingly. Second bosses, third bosses and fourth bosses are sequentially arranged around the first bosses. According to the high-strength combined type drain plate, tensile force of adjacent drain plates in the drain installation process can be resolved effectively, the overall horizontal tensile strength and longitudinal bearing ability are ensured, the manufacturing process for the overall structure is simple, the work strength of the drain plate is improved greatly, and the service life of the drain plate is prolonged greatly. The drain plate has good practicability and is worth using and popularizing.

The invention relates to the field of foamed ceramic materials, in particular to a high mechanical strength foamed ceramic material provided with a circular centre hole or a suborbicular centre hole and a preparation method of the high mechanical strength foamed ceramic material. The preparation method adopts a soluble high-molecular polymer cladding method to make a cross section shape of a rib body of the high-molecular foamed plastic transformed from a triangle to a circle; the circular high-molecular foamed plastic is taken as a precursor, and the foamed ceramic material obtained finally is provided with the circular centre hole or the suborbicular centre hole. The preparation method comprises the following steps: preparing an additional coating on the surface of the high-molecular foamed plastic; modifying the triangular rib of the high-molecular foamed plastic to be circular or suborbicular; utilizing the circular high-molecular foamed plastic as the precursor; adopting a cloning method to obtain the foamed ceramic material of which the centre hole is circular or suborbicular. Compared with the mechanical strength of the same material with a triangular centre hole, the mechanical strength of the foamed silicon carbide ceramic is obviously improved. Therefore, the service life of the material can be effectively prolonged.

The invention belongs to a flexible supporting device and flexible supporting pieces of a photoetching machine. Each flexible supporting piece comprises a top block, a flexible connecting mechanism and bottom blocks, wherein the top block is connected with an objective lens; the bottom blocks are connected with a main base plate; the flexible connecting mechanism comprises two flexible connecting pieces; the flexible connecting pieces are arranged between the top block and the bottom blocks to form a herringbone or inverted-T-shaped flexible supporting piece; each flexible connecting piece is a frame structure with an internal beam or a beam structure with a flexible hinge. The flexible supporting device comprises a first flexible supporting piece, a second flexible supporting piece and a third flexible supporting piece, wherein the three flexible supporting pieces are distributed at three intersection points of an isosceles triangle; the objective lens is arranged in the center of the triangle. According to the technical scheme provided by the invention, the overall modal of an assembly of the objective lens and the main base plate is smaller than 30Hz by virtue of the adopted flexible supporting pieces and the positional layout of the flexible supporting pieces. Each flexible supporting piece is ultralow in rigidity and sufficient in supporting strength, and meanwhile, the stress concentration is avoided.

The invention discloses an automatic centering total station base apparatus. The automatic centering total station base apparatus comprises an upper base, a lower base and a triangular tripod, wherein a reflection pile is arranged on the ground of the central part of the triangular tripod, a circular hole A is formed in the center of the lower base, two sides of the circular hole A are respectively provided with a transverse sliding rod A and a transverse sliding rod B, sliding grooves are respectively formed in the upper surfaces of the transverse sliding rod A and a transverse sliding rod B, the transverse sliding rod A and the transverse sliding rod B are provided with longitudinal sliding rods, two adjacent longitudinal sliding rods are provided with a drive motor C, the upper base is arranged on the longitudinal sliding rods, a circular hole B is formed in the center of the upper base in a triangle shape, an image projector is arranged at the inner lower part of the circular hole B, the image projector is provided with a computer controller, and the computer controller is connected with a drive motor A, a drive motor B and the drive motor C. The automatic centering total station base apparatus automatically precisely adjusts a total station measuring point, thereby saving the leveling time and reducing the manmade error.