99results about How to "Adapt to testing needs" patented technology

The invention discloses a laser speckle detection device and a laser speckle detection method for a tire of an engineering machine. Negative pressure is applied to the external environment of the tire, the tire is horizontally arranged and is driven to rotate, and the inner side and the outer side of the tire are detected by using two probes respectively, so that the detection of defects of a deep layer inside the tire is facilitated; therefore, the defects existing inside the tire and specific positions of the defects are accurately detected, so that the accuracy of flaw detection inside thetire of the engineering machine is improved and optimized. The detection device comprises a vacuum device which forms a negative pressure environment, and a testing device and a rotating device whichare arranged inside the vacuum device, wherein the testing device is used for testing the inner side and the outer side of a detected tire by using a laser speckle technology respectively, and is provided with an inner probe and an outer probe, namely two independently-controlled and operated laser probes which can be moved and positioned along the vertical and horizontal directions; and the rotating device is used for bearing the detected tire and driving the detected tire to synchronously rotate.

The invention relates to a fluid sample processing device for a biochemical reaction. The device comprises a sample adding port, a sample processing chamber, at least two reaction chambers, a waste liquid chamber and a liquid separation detection chamber array; a fluid sample successively flows through the sample adding port, a sample processing chamber and at least two reaction chambers and then flows into the liquid separation detection chamber array or flows into the liquid separation detection chamber array and the waste liquid chamber by pressure and gravity; the sample processing chamber communicates with at least one reagent chamber, and each reaction chamber communicates with at least one reagent chamber. The device drives the liquid to flow by pressure and gravity, and relatively easily allows the fluid to smoothly enter and pass through the reaction chambers and the detection chambers. At the same time, the device can store a reagent in a form of vacuolar pre-encapsulation, can prevent the device from being additionally provided with a reagent storage structure, and reduces the total size of the device.

The invention discloses a detection system for air tightness of a valve. The system comprises a water tank, a water tank bracket, upper and lower pneumatic cylinders, a manipulator bracket, a plurality of manipulators and a manipulator transmission mechanism, wherein a water channel, a water inlet cylinder and a plurality of valve clamping fixtures are arranged in the water tank; the valve clamping fixtures are connected with the water inlet cylinder; the water tank bracket is fixedly arranged on the upper side of the water tank; the upper and lower pneumatic cylinders are arranged on the water tank bracket; the manipulator bracket is connected with piston rods of the upper and lower pneumatic cylinders; the manipulators are ranged on the manipulator bracket; each manipulator comprises a main shaft, a manipulator cylinder, a manipulator clamp and two clamping arms; the main shafts are provided with transmission gears; the manipulator cylinders are connected with the main shafts; the manipulator clamps are fixedly connected with the manipulator cylinders; the clamping arms are hinged in the manipulator clamps; one end of each clamping arm is hinged to the piston rod of the manipulator cylinder through a connecting arm respectively; the manipulator transmission mechanism comprises a transmission cylinder and a rack which is fixedly connected to the transmission cylinder; each transmission gear is engaged with the rack. The system can realize that the opening angle of a to-be-tested valve at each station is consistent to guarantee consistent testing condition of each to-be-tested valve and further achieve a more accurate test result.

The invention provides a rail train traction converter detection platform comprising a base plate, a support plate and an adjustment device; both the base plate and the support plate are parallel to the horizontal plane; the base plate and the support plate are arranged at interval; the base plate is supported on the ground, and the support plate is used for carrying a traction converter; the adjustment device is connected with the base plate and the support plate, to adjust the distance between the base plate and the support plate. The height of the traction converter placed on the support plate can be adjusted via the adjustment device, to adapt to the detection requirement, the traction converter can be conveniently detected.

The invention discloses a structural surface crack detection method based on fusion of image features and Bayesian data, which comprises the following specific steps: A, a metal member surface video image is collected and a detection image library is built; B, image texture features are calculated by localized binarization; C, two-step support vector machine image crack scanning and collection arecarried out; and D, Bayesian data fusion and decision making are carried out. By adopting video image detection, many areas that are difficult to reach by human beings can be acquired; a computer isadopted to recognize the surface crack of a structural member, thereby greatly reducing the heavy degree of interpretation and improving the crack detection rate; the correlation with the surface light intensity of the member is good, and in comparison with the previous grayscale map or other methods, the texture recognition effects can be improved; timely early warning can be carried out on a crack disease, and a structural disease can be detected early; on the premise of keeping a high scanning speed, a radial basis function support vector machine nerve network is used to maintain a high accuracy rate; and the crack recognition accuracy is improved.

The invention discloses portable high-power load modules easy to assemble. The load modules are used for forming charging pile test equipment. Each of the load modules comprises an integrated box body, two binding posts and a resistance module. The binding posts comprise power line interface plates, solid column bodies and hollow cavity bodies, two metal spring compression sheets are arranged in each of the hollow cavity bodies. The power line interface plates are arranged at the upper ends of the solid column bodies, and the hollow cavity bodies are arranged at the lower ends of the solid column bodies. Screw holes are formed in the power line interface plate. The solid column bodies comprise first solid column body parts and second solid column body parts, and the resistance module is arranged between the two second solid column parts. According to the portable high-power load module easy to assemble, an integrated box design is adopted in the load modules, and the load modules can be connected in series or in parallel to provide test current and power in different gears, so that the charging pile test equipment is convenient to carry and meets the test requirements of differentcharging piles.

The invention relates to the field of vehicle safety warning device detection, in particular to a vehicle safety warning device detection method based on space prior. The invention provides a vehicle safety warning device detection method based on deep learning and space prior. The method comprises the following steps: S1, an existing data set being labeled; S2, training a YOLOv3 target recognition framework by using the marked data set; S3, calculating a distance reference quantity and an area reference quantity by utilizing the training set and the label thereof; S4, identifying the picture to be predicted by using a YOLOv3 framework, and then obtaining an array in which warning sign information is stored; S5, calculating a distance score and an area score of the warning device in the picture to be predicted by using the information in the array; S6, if the sum of the distance score and the area score is larger than a preset threshold value, outputting and marking as a key target at the same time.