4results about How to "Reduce irregularities" patented technology

This invention relates to the field of sand making technology, specifically to a sand making device with controllable stone powder content. The device includes a return conveyor tailstock, a sand making structure on the side of the tailstock, a primary filtration structure inside the tailstock, and a secondary filtration structure on the side of the tailstock away from the primary filtration structure. The stone powder is initially filtered by the up-and-down vibration of a moving block. When a specific size needs to be filtered out, the pneumatic bar valve moves, driving the inverted V-shaped guide plate to a parallel state. At this time, the first telescopic plate continues to move, changing the parallel guide plate into a regular V-shape, causing the stone powder on the guide plate to contact the interior of the return conveyor tailstock. This reduces the volume and irregularity of the splashed stone powder through collisions, and accelerates the guidance of the stone powder towards the pneumatic bar valve for filtration, thus improving production efficiency and the filtration effect of the pneumatic bar valve.

The application provides a household environment ontology knowledge base automatic construction method and system, and relates to the technical field of artificial intelligence and knowledge engineering. The method comprises the following steps: constructing a household environment ontology knowledge base template, wherein the template contains classes, attributes and instances of the ontology; establishing communication with a target object, obtaining communication text of the target object, and extracting semantic information of the target object; obtaining an image of the target object, and extracting semantic information of the target object based on the image; comparing the extracted semantic information of the object with the existing classes and attributes in the household environment ontology knowledge base as instances of the ontology; judging whether new classes and attributes need to be established based on the similarity comparison result, updating the semantic information, and perfecting the household environment ontology knowledge base. The application can simplify the construction process of the household environment ontology knowledge base, improve the construction efficiency, reduce the labor cost, reduce the non-standardization of manual construction, and improve the quality of the constructed ontology knowledge base.

The application discloses a kind of based on distributed optical fiber perception and physical information neural network's expressway global traffic state estimation method, comprising:1 by DAS collection expressway vehicle vibration signal and transform into vehicle space-time trajectory chart, each grid flow, speed is calculated after grid operation, the space-time flow chart and space-time speed chart obtained as model input;2 design ResUNet network, configure multi-scale hollow convolution module at network bottleneck layer, expand receptive field;3 LWR continuity constraint, FD basic map constraint, ARZ momentum constraint traffic flow physical law are embedded into loss function, so that the repaired flow and speed information meet the characteristics of real traffic flow, realize traffic space-time chart accurate repair.The application multiplexes existing communication optical fiber, realizes expressway global continuous perception, model has data fitting ability and physical rationality, can accurately output global traffic flow speed, flow state, provides reliable data support for traffic event detection and traffic management use, and engineering practicability is high.

The invention relates to a spraying device for production of a trimmer shell. Comprising a spraying box, and the top end of the spraying box is rotationally connected with a cover plate; the top end of the cover plate is fixedly connected with a sealing rubber strip; an observation window is formed in the side wall of the spraying box; a water outlet is fixedly connected to the side wall of the spraying box; the side wall of the spraying box is fixedly connected with a pair of storage boxes; a pair of nozzles is arranged on the inner side wall of the spraying box; the spray head is connected to the storage box through a pipeline; the bottom end of the spraying box is rotationally connected with a first fixing rod. The side wall of the first fixing rod is fixedly connected with a pair of electric push rods; the side wall of the first fixing rod is slidably connected with a supporting ring. The supporting ring is pushed through the electric push rod, so that the ejector rod forms uniform supporting force on the inner side of the shell, the shell can be quickly fixed, the preparation time is shortened, and the defects after spraying caused by the fact that a clamp shields an outer spraying surface during spraying of a spray head due to clamping and fixing from the outer side during shell fixing are reduced.