36results about How to "Real-time automatic detection" patented technology

The invention discloses a sand material detection structure. The structure comprises a sand hopper, wherein a material level detection mechanism is arranged in the sand hopper, and comprises a plurality of contact probes which are arranged on the inner wall of the sand hopper from top to bottom sequentially and are connected with a controller. By adopting the sand material detection structure, real-time automatic detection on the number of molding sands in the sand hopper can be implemented, thereby effectively avoiding the phenomenon that clay core waste is produced due to the reduced number of the molding sands in the sand hopper, and effectively improving the yield of clay core produced by a box core shooter.

The invention belongs to the technical field of fine measurement, and in particular relates to a small module arc gear measurement method. According to the technical scheme, the small module arc gear non-contact optical fine measurement method comprises the steps that a microscopic image of a small module arc gear is collected; the image edge of the small module arc gear is accurately identified; by using a least square circle method, the geometric center of the small module arc gear is fit; by using a maximum inscribed circle method, the center hole assembly center of the small module arc gear is fit; by using a polar coordinate system, the tooth pitch deviation of the small module arc gear is measured; by using a segmentation measurement method, the tooth profile deviation of the small module arc gear is measured; and the maximum tooth thickness deviation of the small module arc gear is measured. According to the method, the problem that the basic parameters, the geometry parameters, the tooth pitch deviation, the tooth profile deviation and the maximum tooth thickness deviation of the arc gear are difficultly measured is solved, wherein the module of the arc gear is below 0.2mm, and the tip diameter is below 2mm.

The present invention discloses basic watermark facility, and is one digital work copyright protecting system based on digital watermark. The user purchased legal digital work has two CA signature watermarks embedded, one identifying the publisher and the other identifying the purchaser. When illegal copying is found out with the network detector or memory medium based on movable deputy, the illegal propagator may be determined based these two watermark. The copyright information watermark of the publisher includes the publisher ID and the work ID, the digital fingerprint of the purchaser includes the purchaser ID, and these two watermarks are random sequence produced with the corresponding ID and through CA signature. The present invention uses the correlated concept of PKI system for tracing illegal copying and is simple, practical, reliable and expandable.

The invention provides an elevator non-load balance coefficient detection device with the hydraulic cylinder pressure detection function. The elevator non-load balance coefficient detection device comprises an upper clamp, hydraulic cylinders and a lower clamp. The upper clamp is directly installed above the hydraulic cylinders. The lower clamp is directly installed below the hydraulic cylinders. The hydraulic cylinders are used for lifting the lower clamp. The hydraulic cylinders are connected with a hydraulic pump through a hydraulic pipe. A pressure sensor is arranged on the hydraulic pipe so as to detect pressure of hydraulic media in the hydraulic pipe. As the pressure sensor is connected to the hydraulic pipe of the hydraulic cylinders, the pressure of the media such as hydraulic oil in the hydraulic cylinders can be automatically detected in real time and displayed so as to be directly and conveniently observed, or other parameters such as tension of the hydraulic cylinders are further calculated through the pressure.

The invention discloses a method for connecting master-slave circuit breakers in a power distribution box and the power distribution box, comprising: Step 1: Establishing a hand-in-hand communication connection; Step 2: The host re-numbers a plurality of sub-circuit breakers in sequence; Step 3 : Then execute the step of retrieving the number, and perform pairing one by one; Step 4: End the whole process of automatic retrieving and retrieving the number, and return to the normal mode.

The invention discloses a high-precision water level detection system. The high-precision water level detection system comprises an image acquisition module, a data transmission module, a water leveldetection terminal and an alarm module, wherein the image acquisition module is used for obtaining the overwater scale image and the position information of the overwater scale image, the obtained overwater scale image and the position information are transmitted to the water level detection terminal through the data transmission module, the water level detection terminal is used for carrying outimage processing on the overwater scale image so as to obtain the current water level value, and displaying the position information of the water level value and the water level in real time, and thealarm module is used for giving an alarm when the obtained water level value reaches a preset warning value. The high-precision water level detection system has the advantages that the image processing technology and the water level detection are combined, the defect that a person needs to check the scales on the marker post in the traditional method, the operation is inconvenient and the error islarge are overcome, the real-time and automatic detection of the water level is realized, so that the safety of water level detection is improved.

The invention proposes an accelerometer fault diagnosing and detecting method, which utilizes the redundant information between non-orthogonal axes (completely orthogonal ones or partially orthogonal ones) to realize the real-time automatic detection to the invalid axis in the accelerometer and to report the self-diagnosing and detecting processing method for the diagnosing information, achieving the purposes of ensuring data credibility, increase in detection efficiency and decrease in cost.

The invention discloses a device for detecting the concentration of a transparent mixed solution with two solutes. The device consists of a semiconductor laser (1), a polarization relevant optoisolator (2), a film polarization beam splitter prism (3), a sample pool and a magneto-optic modulator (4), a polaroid (5), photoelectric detectors (6 and 7), a division amplifier (8) and a microcomputer processing and displaying unit (9). The device has simple detection principle and easier device manufacturing; the division amplifier is adopted so as to improve system detection sensitivity and remove adverse influence due to instability of light source transmitted power at the same time; a non-invasive detection method is adopted, thus the device has no pollution on the solution; real-time and automatic detection can be realized by adopting the microcomputer processing and drawing display technology; and the technology has a better application prospect in detecting the concentration of the transparent mixed solution with the two solutes.

The invention discloses a train carriage abnormal crowd density detection method. The method includes the following steps that a plurality of carriage sample images with different crowd density grades are collected, and multimodal fusion characteristics of the images are obtained; a crowd density classifier is obtained through training; multimodal fusion characteristics of an image to be detected are obtained; according to the crowd density classifier, the crowd density grade of a carriage corresponding to the image to be detected is obtained, and accordingly whether the crowd density in the carriage is abnormal or not is judged; abnormal information of related crowd density is recorded automatically. According to the method, the multimodal fusion characteristics are used, abnormal crowd density scenes are learned and identified automatically, and therefore abnormal crowd density can be identified and recorded automatically in a real-time mode in the running process of a train. The method is insensitive to train scene crowd shielding, illumination and slight deformation of a camera, and is suitable for train abnormal crowd density detection through 360 cameras or bolt cameras.

The invention discloses a construction concrete preparation equipment, which comprises a concrete mortar mixing tower. A stirring device is arranged inside the concrete mortar mixing tower. The mortar mixing tower is vertically supported by several supports. The concrete mortar mixing tower The bottom end of the tapered lower hopper is a tapered lower hopper with the tip facing down; the lower end of the tapered lower hopper is provided with a discharge port, and a valve is arranged in the discharge port; the structure of the present invention is simple, and the mortar The consistency real-time detection mechanism can automatically detect the consistency of the concrete preparation process in real time, and can adjust its consistency in real time to ensure that the consistency of the final material meets the standard.