45results about How to "Spatial location is accurate" patented technology

The invention relates to a high-precision autonomous obstacle-avoiding flying method for an unmanned plane, and the method comprises the following steps: (1) building a high-precision map model; (2) planning flight control for a three-dimensional airline; (3) transmitting a flight control signal at step (2) to a steering engine of an unmanned plane servo mechanism, thereby achieving the control purpose through the changing of the position of the steering engine. The advantages of the method lie in that the space coordinates of the terrain environment of a region through the combination of the technology of laser scanning and the technology of differential GPS, thereby providing support for the autonomous obstacle-avoiding line planning; the position control error of the whole flight process is controlled at a centimeter level, thereby guaranteeing that the unmanned plane can fly along a planned path, achieving an effect of automatically avoiding obstacles, and finally enabling the unmanned plane to arrive at a destination for operation.

An apparatus and method for analyzing and imaging chemical compounds within a test subject uses subatomic particle activation. The test subject (and chemical compounds contained therein) is irradiated by non-thermal neutrons, thereby generating thermal neutrons within the test subject and stimulating the emission of gamma rays. Gamma ray detectors detect the emitted gamma rays and energy signals derived from the gamma ray detectors are filtered to eliminate non-relevant spectral artifacts.

A method and device for monitoring an electrical network, including: a mechanism detecting electrical signals and additional signals produced in the electrical network, the additional signals being of a different physical nature to the electrical signals; a mechanism for processing the electrical signals to define a first time reference representing a detection time of the electrical signals emitted upon a fault event arising in the electrical network; a mechanism processing the additional signals to define a second time reference representing a detection time of the additional signals emitted upon the fault event arising in the electrical network; and a processor spatially locating the fault event in the electrical network according to the first and second time references.

The invention discloses a method for manufacturing and using a microscopic stereo view. Two digital single lens reflex cameras are arranged on the left external connecting arm and the right external connecting arm of an operating microscope, a left image and a right image in pair are formed by taking a photo with the two cameras simultaneously, through post processing, the overlapped parts of theleft and the right images in pair are respectively put at the left side and the right side of one newly created picture, the whole picture is evenly filled, and then the picture is printed and outputto form one microscopic stereo view. During the manufacturing process of the microscopic stereo view, the structure of the traditional operating microscope is fully utilized to ensure that images aresimultaneously acquired in a simple and convenient process; and when the view is observed stereoscopically with a stereo view mirror, the images are vivid, colorful and stereo, so that the spatial cognition of a trainee is greatly improved, the learning interest is increased, and the learning efficiency is improved. The method is particularly suitable for medical teaching, research and communication.

The invention provides a simple flexible positioning method for a continuous external surface of a workpiece, which comprises the following steps: external surface elements-positioning points or lines are selected on the continuous positioning external surface of the workpiece, and the shape of the workpiece is determined and positioned discontinuously by the multiple points or multiple lines; positioning pins which are in point contact or line contact with the external surface of the workpiece are installed on the selected positioning points or lines, and shape positioning pins (7) are distributed along the shape of the workpiece; the positioning pins are positioned by tangent points or tangent lines which are in contact with the shape of the workpiece; the shape positioning pins (7) areinstalled in a step bushing (6); the shape positioning pins (7) are assembled at one end of the step bushing (6), and a target ball (8) of a laser tracking instrument is arranged at the other end of the step bushing (6); laser beams are received by the target ball (8); and the laser tracking instrument emits and receives the laser beams fedback by the target ball (8) and judges the space positionof the positioning points by a computer. The method for flexibly positioning the shape of the workpiece provided by the invention has high manufacturing accuracy, small technology difficulty, high work efficiency and short manufacturing cycle.

The invention discloses a mounting method for templates of a box-type steel skeleton inclined column, which comprises the following steps that 1) a steel reinforcement cage of a steel skeleton is bound by steel reinforcements; 2) a column foot template and a column body template of the inclined column are subjected to lofting; a variable cross-section wire is put at the steel skeleton; 3) a template support is welded at a variable cross section; 4) templates are assembled and reinforced; double-groove steel is adopted as template reinforcing main ribs; and 5) a supporting frame is erected by the templates. The mounting method for the templates of the box-type steel skeleton inclined column has the benefits that 1) as the double-groove steel is adopted as the template reinforcing main ribs, welding of an anchor bolt on an inclined column body, subsequent cutoff and surface repair of concrete are avoided effectively; and 2) the steel reinforcement support is welded at the variable cross section of the column for bearing the pressure of the column body template, the probability of instability of the column foot template due to the pressure is reduced, and the probability of repeated position adjusting processes of the column foot template and the column body template is avoided.

The invention discloses a full-automatic paster ticket inserting machine for a collection book. The full-automatic paster ticket inserting machine comprises a controller, a positioning mechanism in signal connection with the controller, more than one paster unit and a synchronous conveying system with a positioned conveying function. The number of the paster units corresponds to the number of pages of a to-be-pasted book body, and each paster unit comprises a page turning mechanism, a glue rolling mechanism and a picking mechanism which are arranged in sequence, and further comprises a feeding mechanism for providing to-be-pasted plasters for the picking mechanism. The page turning mechanisms are used for automatic page turning of the to-be-pasted book body; the glue rolling mechanisms are used for one-time glue rolling of pages; the picking mechanisms are used for one-time picking and pasting of the to-be-pasted plasters on the pages; and the efficient and automatic paster pasting process is achieved, and the problems of large labor intensity, low efficiency, poor quality and the like caused by manual operation are solved. The paster pasting position is accurate and unified, and the quality of the collection book is obviously improved.

The invention discloses a multi-degree-of-freedom aided ship model starting and braking device and belongs to the ship and marine engineering experimental equipment technical field. The device comprises fixed structures, longitudinal adjustment structures, vertical adjustment structures and a truss structure; the fixed structures are installed on the deck of a test ship model; each vertical adjustment structure is integrally connected with one corresponding fixed structure; each vertical adjustment structure is correspondingly welded on the upper side and lower side of the corresponding fixedstructure; each longitudinal adjustment structure is installed on adjacent vertical adjustment structures at the same side of the deck; the longitudinal adjustment structures at two sides of the deckare provided with fixed trusses; a slideable truss is connected between the two fixed trusses; and various components are fixed through bolts. The multi-degree-of-freedom aided ship model starting andbraking device is of structural simplicity; and the relative positions of the components of the device can be flexibly adjusted. With the multi-degree-of-freedom aided ship model starting and brakingdevice adopted, multi-degree-of-freedom force supporting points can be provided for the starting and braking of ship models with different shapes; and damage to valuable test and measurement equipment caused by larger load generated during the starting and braking of the ship models can be avoided.