30results about How to "Realize automatic identification function" patented technology

The present invention provides a QR code recognition method based on image processing, which includes the following steps: (1) preprocessing: including grayscale, image enhancement, binarization, and image denoising; (2) positioning: determining the QR code symbol The position information of 12 corner points on the position detection graph and the position information of the lower right corner of the QR code symbol are determined; (3) decoding: according to the various position information of the QR code symbol obtained in the positioning stage, geometric correction is performed to extract the standard QR code symbols, and then draw a sampling grid. The advantages of the present invention are: the method can be applied to the field of industrial production automation, realizes the automatic recognition function of the QR code without manual participation, and can solve the problem of complex image background, low image quality, and QR code position detection graphics in practical applications. Problems such as scale features being destroyed. The algorithm can achieve a high recognition rate of 98% under stable operation conditions. The algorithm has strong real-time performance, and it takes about 150ms to recognize a frame of image.

The invention relates to a power distribution system remote maintenance method based on the IEC61850 standard, and belongs to the technical field of power systems and automation thereof. The method comprises the following steps: (1) a power distribution master station in a power distribution system sends Discover information; (2) the power distribution system acquires configuration information of a power distribution terminal; (3) the power distribution master station obtains real-time measurement data of the power distribution terminal; and (4) a power distribution station generates a measurement point table for the power distribution terminal according to the real-time measurement data of the power distribution terminal. By adopting the method, power distribution network terminal accessing and exiting is realized, the process is full-automatic, and no manual check on a data point table is needed. By adopting the method, a power distribution network terminal can be automatically discovered and registered. The primary topology of a power distribution network is updated automatically when a power distribution terminal logs off a system or fails. Especially, after the power distribution terminal logs off a system or is subject to permanent failure, the system automatically logs the terminal out in time. Thus, real-time updating of the distribution network topology is realized, and accurate information is provided for the relay protection function.

The invention discloses a wireless power transmission winding position identification device and method based on a pre-excitation magnetic field, and belongs to the technical field of wireless power supply. The wireless power transmission winding position identification device comprises a pre-excitation winding, a magnetic sensor, a controller and a pre-excitation power supply. The winding position identification method comprises the following steps of applying a pre-excitation current to the pre-excitation winding, constructing the pre-excitation magnetic field, and detecting the magnetic field sensing intensity in the position of the sensor through the magnetic sensor on the other side. According to a distribution function of the pre-excitation magnetic field disclosed by the invention,the distance between the sensor and the central axis of the pre-excitation side winding is judged, and the dislocation coordinates are determined through a multi-sensor geometric relation. Based on the magnetic field "zero crossing point" characteristic point, the magnetic field distribution rule of the excitation windings with different magnetic structures and different parameters can be automatically determined, and then the relative position coordinates of the pre-excitation winding are calculated, thereby providing in-place information and accurate dislocation position information for automatic parking, automatic charging of an electric automobile and automatic adjustment and compensation of wireless power supply.

The invention relates to a Nand Flash parameter reading method. The method includes the following steps that a Nand Flash reading command is sent, and a first section of Nand Flash parameters in multiple sections of Nand Flash parameters are read, wherein each section of Nand Flash parameters includes a first part of data and a second part of data; the first part of data are verified for the first time, and if verified to be corrected in the first time of verification, the first part of data continue to be verified for the second time; if the first part of data are verified to be corrected in the second time of verification, values of parameters in the first part of data are compared with values set by a program; if the values of the parameters in the first part of data and the values set by the program are the same, it is determined that Nand Flash parameter reading succeeds. Through the method, automatic identification of Nand Flash parameters is achieved without adding memorizers or increasing cost.

An automatic paper wrapping device for anti-corrosion coating protection at the end of oil and gas steel pipes is provided, which has a sloping conveying carrier, and a steel pipe roller bracket that is integrally lifted by a lifting mechanism is provided under the steel pipe limit groove at the end of the conveying carrier, and the steel pipe roller bracket Lift the steel pipe to make the steel pipe rotate at a constant speed; the axial movement mechanism outside the shaft end of the steel pipe is equipped with the lifting arm assembly and the paper wrapping system to move axially close to the shaft end of the steel pipe, and stop at the pipe mouth after the pipe mouth is detected by the brake mechanism; The arm assembly is equipped with a paper winding system consisting of a paper unloading mechanism, a paper feeding mechanism, a paper cutting mechanism, a paper pressing mechanism and a gluing system; The kraft paper strip guided by the paper mechanism is wound and bonded to the steel pipe nozzle. The invention replaces manpower to complete the technical problem of automatic paper wrapping, glue coating and bonding of the steel pipe nozzle, and overcomes the technical problem of more energy saving and consumption reduction, especially eliminating the poor synchronization of steel pipe rotation and paper wrapping, and meets the needs of modern production.

The invention discloses an intelligent quantitative injection system and an intelligent quantitative injection method thereof. The intelligent quantitative injection system comprises a conveying belt,a plurality of liquid storage tanks, a plurality of pipeline mechanisms corresponding to the multiple liquid storage tanks, a code scanning gun, a displacement mechanism and a controller, wherein thecontroller controls the conveying belt to convey a container to a code scanning position of the code scanning gun and controls the code scanning gun to scan a bar code on the container; then, the controller controls the conveying belt to convey the container to an injection position and controls a stepping motor of the displacement mechanism to drive a sliding plate to move according to the scanned code information so that a liquid injection opening corresponding to the scanned code information is aligned at the container for injection; at last, the controller controls the stepping motor to drive the sliding plate to return and controls the conveying belt to convey the container continuously. By means of the intelligent quantitative injection system and the intelligent quantitative injection method thereof, quantitative and accurate injection of different types of liquid is realized, the injection speed of different types of liquid is improved, and the injection efficiency is improved.