35results about How to "Reduce management and operation costs" patented technology

The present invention provides a method and system for detecting foreign objects on a rail from an air-based perspective based on weakly supervised learning, which solves the problem that many types of foreign objects on a rail are difficult to identify using traditional detection methods. The system of the invention includes a space-based image acquisition module, an image preprocessing module, a two-level segmentation network module, a regional positioning module and an abnormal information output module. The method of the invention shoots the image of the ground rail area by the unmanned aerial vehicle, and after preprocessing the image, it is input into the two-stage segmentation network to extract the rough segmentation prediction map and the pixel sub-category prediction map of the rail area. The sub-category prediction map extracts the pixels actually belonging to the railway track in the map, and the invention trains a two-level segmentation network through a weakly supervised reverse learning algorithm, and reversely locates the abnormal area in the railway track according to the two prediction maps. The invention can effectively detect the foreign objects in the rails without marking the foreign objects themselves, and realize the identification and early warning of the intrusion of the foreign objects in the rails.

The invention discloses integrated profile control technology of nitrogen foams during recovery of viscous oil reservoirs. The integrated profile control technology comprises a fixed station, a nitrogen foam generator, a nitrogen foam repetition generator, a nitrogen foam dispenser and nitrogen foam metering devices, all of which are sequentially connected.The fixed station comprises a nitrogen trolley group, a steam boiler and a foaming agent injection and skidding unit. The nitrogen trolley group, the steam boiler and the foaming agent injection and skidding unit are connected with the nitrogen foam generator. At least one nitrogen foam metering device is connected with corresponding shaft mouths. The integrated profile control technology of nitrogen foams during recovery of viscous oil reservoirs has following beneficial effects: the integrated profile control fails due to complex operation of steam-driven nitrogen foam profile control technology; the integrated profile control technology helps achieve linkage profile control of steam-driven with blocks; and development effect of steam flooding of viscous oil is improved.

The invention discloses a safety discharge system for tail water of a sewage treatment plant and a control method of the safety discharge system. The tail water of the sewage treatment plant is conveyed to a monitoring well through a sewage pipeline and passes through an intelligent hoisting weir plate; then the tail water enters into a discharge pipeline; finally, the tail water is discharged into a receiving water body; when a measured water level is greater than a set normal water level or when measured water quality is greater than a stipulated discharge index, the intelligent hoisting weir plate, an accident pipeline or a refluxing pipeline is hoisted to realize safety discharge of the tail water of the sewage plant. By adopting the safety discharge system disclosed by the invention,accident discharge problems that discharged water of the tail water of the sewage treatment plant is recharged, the water quality non-up-to-standard discharge and the like are effectively solved; thesafety discharge of the tail water can be realized and the water environment quality of the receiving water body is protected. The safety discharge system disclosed by the invention has the advantagesof dynamic acquisition, real-time monitoring and in-time processing and controlling of data, high intelligent degree, low infrastructure construction investment and low operation cost.

The invention discloses a method for efficiently extracting salidroside and rosavin from rhodiola rosea. The method comprises the following steps of: selecting rhodiola rosea roots, drying, and rapidly air-cooling; crushing the dried rhodiola rosea roots, and screening into the granularity of 40 meshes; adding 2% of hexadecyl trimethyl quaternary ammonium bromide and 80% alcohol solution of 1% of potassium acetate in an amount of 10 times of the weight of the rhodiola rosea into the obtained rhodiola rosea powder, performing dynamic countercurrent extraction at a temperature of 25 DEG C so as to obtain an extracting solution; performing vacuum concentration, concentrating into an extract proportion of 1.15-1.20; adding acidified pure water in an amount of 7 times of the weight into the obtained extract, fully stirring, precipitating in a refrigerated storage and staying overnight, and separating the precipitate; and performing spray drying, thereby obtaining the product. The production method provided by the invention is a one-step extraction method, the dynamic countercurrent extraction is adopted, extraction, separation and purification are simultaneously performed, the method is high in extraction speed, high in efficiency, low in energy consumption, simple in process and low in cost, and the product recovery rate is obviously improved.

The invention discloses a mobile campus integrated service platform and a working method thereof. The mobile campus integrated service platform comprises a one-stop service hall module, a data centerand a business logic layer; wherein the one-stop service hall module provides service guide, business consultation, suggestion feedback, service reservation, online processing, message push, self-payment and data statistics services; the data center provides data support for the business logic layer and the one-stop service hall module; and the business logic layer is responsible for the generation, processing and conversion of logical data. The business logic layer connects the service layer and the platform layer, and divides school-level businesses and services into different departments according to the business ownership; each department deals with the own businesses through asynchronous message passing; the processed data of each department is fused through a process center to realize the logical management and task scheduling of the school-level businesses, and to monitor the execution and feedback of the business processes. By means of the invention, the problems of business process splitting and lack of management are solved; and the seamless integration of student management, campus monitoring, consumption management and teaching management is realized.