4results about How to "Realize closed-loop regulation" patented technology

The application provides a polarization management device and a closed-loop control method thereof. The polarization management device comprises: a polarization separation unit configured to receive an input optical signal and split the input optical signal into a first transverse electric mode optical component and a first transverse magnetic mode optical component; a polarization conversion unit configured to receive the first transverse magnetic mode optical component and convert the polarization state of the first transverse magnetic mode optical component to obtain a second transverse electric mode optical component; a first phase adjustment unit configured to perform first phase adjustment on the second transverse electric mode optical component to obtain a third transverse electric mode optical component; a second phase adjustment unit configured to receive the first transverse electric mode optical component and the third transverse electric mode optical component, perform second phase adjustment, and combine the first transverse electric mode optical component and the third transverse electric mode optical component to obtain a coupled optical signal; a sampling monitoring unit configured to sample the coupled optical signal to obtain a monitoring optical signal, split the monitoring optical signal into a fourth transverse electric mode optical component and a second transverse magnetic mode optical component; and a controller configured to adjust the working state of the first phase adjustment unit and / or the second phase adjustment unit based on the fourth transverse electric mode optical component and the second transverse magnetic mode optical component.

This invention discloses a greenhouse environment control system and method based on crop organ phenotypic information, belonging to the field of greenhouse environment control technology. The method includes: acquiring historical datasets and weather forecast data; constructing a greenhouse environment prediction model; inputting the historical datasets and weather forecast data into the greenhouse environment prediction model to obtain greenhouse environmental data for the next 24 hours; constructing a crop growth prediction model; combining current environmental information and crop organ phenotypic growth information from the previous 7 days to predict crop organ phenotypic growth information to obtain predicted crop growth values; obtaining crop target values; acquiring actual crop growth values ​​using a crop organ phenotypic information acquisition platform and comparing them with the predicted values ​​to obtain the difference; determining whether to adjust the crop target values ​​based on the difference, and thus adjusting greenhouse environmental parameters. This invention incorporates crop organ phenotypic information feedback into greenhouse environment optimization and control technology, improving the yield and quality of greenhouse crops.

The present application relates to the technical field of reservoir regulation, and discloses a cascade reservoir ecological regulation method and device for improving water flow of a Chinese sturgeon natural spawning test field in a bifurcated river downstream of a dam, the method comprising: obtaining test field hydrological data, main river hydrological data and reservoir hydrological data; constructing a target relationship model between reservoir outflow and test field flow rate according to the data; analyzing spawning suitable flow rate of Chinese sturgeon according to activity trajectory data and the target relationship model to obtain a satisfaction rate of a target suitable flow rate threshold; and taking the maximum satisfaction rate of the target suitable flow rate threshold as an optimization target, and taking multiple technical constraints as constraint conditions, optimizing the outflow of upstream and downstream reservoirs to obtain a target regulation scheme. The present application improves the suitability of the influence of reservoir outflow adjustment on fish spawning through target relationship model analysis and outflow optimization.

The invention relates to the technical field of biomedical materials, and discloses an intelligent responsive degradable hydrogel, which is characterized by comprising the following components: a base material which is a blend of hyaluronic acid and chitosan and has a total concentration of 2.0%-3.0% w / v; the cross-linking agent is an anti-TNF-alpha monoclonal antibody, and the dosage of the cross-linking agent is 0.8 mu mol / g of the base material; the auxiliary cross-linking agent is genipin with the concentration of 0.1% w / v; the loaded drug is a platelet-derived growth factor, and the drug loading capacity is 100 ng / mg of the hydrogel. The hydrogel can specifically recognize an inflammation signal in a chronic wound high TNF-alpha microenvironment, trigger network degradation and synchronously release a repair promoting medicine, recognition-degradation-administration closed-loop regulation is achieved, and the hydrogel is suitable for diabetic foot ulcer and other hard-to-heal wounds.