30results about How to "Fast and accurate calibration" patented technology

The invention discloses a robot parallel polishing system which comprises a coarse polishing system, a refined polishing system, a base component, a system control cabinet, a pneumatic control cabinet, a robot vision self-positioning system, workpieces and a working table. The workpieces with large free curved faces can be coarsely and finely polished through the polishing systems at the same time, simultaneous polishing on the two same workpieces can be achieved, the polishing accuracy can be effectively guaranteed, and the polishing efficiency is improved. Before the robot parallel polishing system works, the polishing areas are divided by path generative software according to three-dimensional models of the workpieces, the polishing paths are generated, standards of the workpieces are rapidly and accurately demarcated through the robot vision self-positioning system, two industrial robots drive a pneumatic polishing head to conduct coarse polishing and refined polishing on the polishing areas according to the planed paths, the pneumatic mild force control technology, the normal polishing force control technology and the path real-time calibration compensation technology are adopted in the polishing process, and the polishing accuracy and the coincidence of the polishing quality are effectively guaranteed.

A system for calculating the operating distance range remaining for a vehicle. The system includes a driver input sensor for sensing predetermined vehicle operating condition data, an energy storage sensor for sensing energy storage capacity data of a corresponding energy supply mechanism, a controller in communication with the driver input sensor and the energy storage sensor. An executable range calculation software program is stored in the memory of the controller which uses sensed vehicle operating condition data from the driver input sensor and sensed energy storage capacity data from the energy storage sensor to determine range by determining a mean of energy storage capacity data, determining a slope of the energy storage capacity data, determining an intercept of the energy storage capacity data, and applying a least square linear regression to the determined mean, determined slope and determined intercept to find the remaining range.

The invention relates to the technical field of image processing, in particular relating to a method for correcting wide-angle camera lens distortion of an automatic teller machine (ATM). The method comprises the following steps: establishing a database in accordance with correction parameters for the wide-angle camera lens distortions of ATMs of different types from different manufacturers; shooting a wide-angle image in a scene containing a plurality of straight lines; manually extracting curves in the image; determining a group of optimal correction parameters for the wide-angle camera lens of the ATM; and correcting the wide-angle image in accordance with the optimal parameters. By utilizing the method provided by the invention, the optimal correction parameters can be acquired fast and accurately, and the wide-angle lens images can be accurately corrected based on the optimal parameters.

The invention relates to a method and equipment for calibrating a dust-measuring instrument. Weighed test dust is dispersed and then fed into a self-circulation system with stable gas flow, so that flowing standard dust-containing gas with stable concentration is prepared; and standard dust-containing gas with different concentrations can be prepared just by changing the quantity of the fed dust, and the dust-measuring instrument to be calibrated can be rapidly and correctly calibrated. The equipment comprises the dust-measuring instrument (1), a self-circulation pipeline (2), a dust generating device (3), a flow measuring device (4), a flow velocity and pressure adjusting valve (5), a circulating fan (6), an air filter (7), an air heater (8), a switch valve, a dust collector (12), an exhaust fan (13), connecting pipelines between all devices, and the like. Compared with the prior art, the method and the equipment can rapidly and correctly calibrate the dust-measuring instrument, thereby greatly reducing the error of the dust-measuring instrument and enabling the measurement data of the dust-measuring instrument to be more real and reliable.

Circuits, systems, and methods for generating and calibrating bias for a magneto-resistive (MR) sensor. The circuit relates to a preamplifier circuit in a magnetic storage system, including an amplifier having an input coupled to a first MR sensor node, a first feedback path comprising a feedback resistor, the path configured to receive an amplifier output from the amplifier and to provide a feedback output to the first MR sensor node, a charging circuit configured to generate a current, apply the current to the first MR sensor node, and sample a voltage between the first MR sensor node and a second MR sensor node to produce a sampled voltage, the charging circuit operating when the feedback path is activated, and a bias circuit configured to apply a bias voltage across the first and second MR sensor nodes and to adjust the bias voltage to match the sampled voltage, the bias circuit operating when the feedback path is deactivated. The present invention advantageously provides for fast and accurate calibration of bias across an MR sensor that compensates for bias error introduced by the feedback path.

The invention discloses a firearm laser calibrator, a method for demarcating the firearm laser calibrator, a method for calibrating a firearm, and a method for determining the target point of the boreaxis. The firearm laser calibrator comprises an inserted rod, a laser fixing frame and a laser generator, wherein the inserted rod is in a straight-handle rod shape, the diameter of the inserted rodis slightly less than the sunny side inner diameter of a gun barrel inner rotation line of a calibrated firearm, so that the inserted rod is smoothly inserted and connected into a gun barrel from a gun muzzle; the laser fixing frame includes a positioning cylinder for fixing the laser generator and an inserted rod positioning piece arranged on the upper side of the positioning cylinder, and the front end of the inserted rod is fixedly connected to the inserted rod positioning piece; and the laser generator is arranged in the positioning cylinder of the laser fixing frame. By means of the firearm laser calibrator, the purpose of calibrating the firearm can be achieved, and the accurate positioning of the extension line on the bore axis can also be achieved, the firearm laser calibrator is simple in structure, and convenient to use, the calibration work of the general light weapons such as rifles without live firing can be achieved, the calibration process is fast and accurate, and the firearm laser calibrator is very suitable for the use of the gun application unit of a basic level which lacks the special gun calibrator equipment.

The invention discloses a nano hard alloy micro-drill bar production system, and relates to the technical field of mold machining. An oil cylinder is arranged at the upper end of a top bracket, and a punching head is fixed on an output shaft at the lower end of the oil cylinder; supporting columns are arranged on the periphery of the lower side of the top support, and a clamping plate is fixed to the lower ends of the supporting columns; a first die plate is arranged on the lower side of the clamping plate, a second die plate is fixed on the lower side of the first die plate, and a storage device is arranged on the lower side of the second die plate; a material accommodating cavity and a mold cavity which are communicated with each other are formed in the first die plate and the second die plate respectively; the first die plate is provided with a left die and a right die, and the cross sections of the left die and the right die are semicircular; a heating device is arranged outside the lower end of the material accommodating cavity, and a cooling device is arranged outside the cavity; and the storage device is provided with a base, a supporting plate is arranged on the upper side of the base, and a placing groove is formed in the middle of the upper side of the base. The die plates can be prevented from being blocked, meanwhile, disassembly and cleaning are convenient, the forming effect of the die is guaranteed, and the product quality is improved.

A high molecular polymer powder material is characterized by comprising the following components in percentage by mass: 80-99.8 percent of high molecular polymer substrate, 0.1-5 percent of adhesion promoting resin and 0.1-15 percent of melt flow assistant. A mechanical mix process or an extrusion blending repulverizing process is adopted to uniformly mix the high molecular polymer substrate, theadhesion promoting resin and the melt flow assistant to obtain the high molecular polymer powder material; wherein the high molecular polymer powder material has excellent melt flow, and the melt flowrate thereof is at least 20% higher than the same polymer substrate without the addition of melt flow assistant, as measured according to ASTM 1238 (2015) at 160 DEG C under a load of 0.325 kg. The invention makes use of the self-leveling property of the melted high molecular polymer powder material with good melt fluidity, realizes accurate and rapid leveling of the substrate, improves the production efficiency, reduces the cost, and improves the accuracy and surface quality of the sintered workpiece.

An apparatus (200) for use with a robot (100) is disclosed. The apparatus (200) comprises a reflective photoelectric sensor (130) arranged on a gripper (120) of the robot (100) and a controller (300).The controller (300) is configured to: cause the reflective photoelectric sensor (130) to scan over a target object (210, 210'); monitor changes in an output signal from the reflective photoelectricsensor (130); for each detected change exceeding a threshold, determine a coordinate of a gripping component (140) on the gripper (120) in a robot coordinate system, to obtain a set of coordinates; determine a position of the target object (210,210') in the robot coordinate system based on the set of coordinates and a predefined offset value (PO) between the reflective photoelectric sensor (130) and the gripping component (140); and store the position of target object (210, 210') for future use in assembling objects. A method, a robot and a computer program product are also disclosed. The apparatus (200) and the method provide a new solution for calibrating or teaching the robot.