7results about How to "Supply on demand" patented technology

The invention relates to the field of big data, and discloses a water and fertilizer regulation and control method, device and system based on big data, and the method comprises the steps: building a water and fertilizer regulation and control management container in a cloud data server according to the information of a water and fertilizer regulation and control region; obtaining a plurality of water and fertilizer monitoring sub-regions according to the water and fertilizer monitoring sub-region information, and obtaining target water and fertilizer monitoring sub-region reference comparison data corresponding to the planting information; according to a set time interval, obtaining water and fertilizer regulation and control characteristics of the target water and fertilizer monitoring sub-region corresponding to the planting information, generating an irrigation path according to an adjacent sub-region sequence of the target water and fertilizer monitoring sub-region corresponding to the planting information, and according to the water and fertilizer regulation and control characteristics of the target water and fertilizer monitoring sub-region corresponding to the planting information at a previous time interval, generating an irrigation path. And water and fertilizer regulation and control characteristic changes of the target water and fertilizer monitoring sub-region corresponding to the planting information are obtained until water and fertilizer regulation and control in the whole planting stage are completed.

The application provides a communication system, a communication method and a device, and relates to the technical field of communication. The communication system comprises a first entity, a second entity, a third entity and at least one fourth entity; the first entity, the second entity, the third entity and the at least one fourth entity are connected with each other; the second entity is used for acquiring a service demand and sending a service request message to the first entity; the first entity is used for determining an execution operation list of a target service according to the service request message; the third entity is used for determining at least one execution operation of each fourth entity according to the execution operation list; and each fourth entity is used for executing the at least one execution operation to obtain an execution result. The communication system provided by the application can provide intelligent endogenous services such as AI services.

The invention discloses an anticorrosive coating as well as a preparation method and application thereof, and relates to the technical field of high polymer materials and metal corrosion protection. The anticorrosive paint comprises the following components which are independently subpackaged: a component A: an epoxy resin prepolymer; component B: an epoxy resin curing agent, wherein the epoxy resin curing agent comprises an amino curing agent; component C: a functional molecule, wherein the functional molecule comprises alpha-lipoic acid. The coating has an innovative self-layering structure, so that the coating has a lotus leaf effect-like hydrophobic surface and super glue-like base layer adhesion at the same time, and the contradiction that the hydrophobicity and the adhesion force of a traditional coating are difficult to consider at the same time is solved. The existence of the dynamic disulfide bond not only endows intelligent release and potential self-repairing functions, but also provides possibility for degradation and chemical recovery of the coating material after the life cycle is ended, and conforms to the concepts of green chemistry and sustainable development.

The application provides an open-field cabbage water and fertilizer intelligent regulation method and device, and applies to the crop water and fertilizer precision regulation technical field.The method comprises the following steps: synchronously collecting short-impending meteorological data, cabbage body growth image data and hierarchical soil moisture data of an open-field cabbage planting area; taking a natural day as a time reference, integrating and processing the collected multi-source heterogeneous data, and generating daily characteristic data of a unified scale and representing growth correlation characteristics of the cabbage; inputting the daily characteristic data into a multi-source fusion intelligent decision model to obtain irrigation regulation parameters and fertilization regulation parameters of the open-field cabbage; and performing water and fertilizer supply operations on the open-field cabbage according to the irrigation regulation parameters and the fertilization regulation parameters.

The invention provides a wire twister for heat tracing band production, and belongs to the technical field of heat tracing band production equipment. The wire twisting machine comprises a wire separating guide mechanism and a wire collecting and gathering mechanism which are sequentially arranged in the conveying direction of a heat tracing band, the wire separating guide mechanism is used for guiding a plurality of single wires to the wire collecting and gathering mechanism, and the wire collecting and gathering mechanism is used for gathering and twisting the plurality of single wires; the branching guide mechanism comprises a branching disc, a plurality of groups of threading holes are formed in the circumferential direction of the branching disc, a wire guide assembly is arranged in the branching disc, the wire guide assembly comprises two groups of limiting wire guide rollers, and the distance between the two groups of limiting wire guide rollers is adjustable so as to adapt to single wires with different diameters; the wire collecting and gathering mechanism comprises a gathering horn, wire anti-abrasion rollers and an oil storage pipe, a plurality of sets of wire anti-abrasion rollers are arranged in the circumferential direction of the gathering horn, and single wires are guided into the gathering horn through the wire anti-abrasion rollers. The invention particularly provides a wire twisting machine for heat tracing band production, which can ensure the wire twisting path of a single wire and avoid deviation and abrasion of the single wire.

The application relates to the technical field of intelligent air conditioning systems, in particular to a data machine room precision air conditioning wisdom energy-saving system and method, which comprises the following: an environment detection module, which is used for detecting environment parameters in a machine room to obtain detection data; an energy efficiency control module, which is used for acquiring the detection data, determining an operation mode of an air conditioner based on the detection data and generating a control instruction, wherein the operation mode comprises an original mode and an energy-saving mode; a switch module, which is arranged on a supply fan and a compressor of the air conditioner, and is used for controlling the on-off of the supply fan and the compressor according to the determined operation mode and the corresponding control instruction; and a variable frequency control module, which is arranged on the air conditioner to realize variable frequency speed regulation control in the confirmed operation mode according to the corresponding control instruction, so as to realize supply air volume control of the supply fan and compression intensity control of the compressor. The application has the effect of reducing air conditioner energy waste in the data machine room.

The utility model discloses an opening and closing device for receiving vacuum negative pressure of a filter stick transmitter, the filter stick transmitter comprises a plurality of transmitting units, each transmitting unit comprises a transmitting unit support, and a vacuum negative pressure interface on the transmitting unit support is connected to a gas tank distributor through the opening and closing device. The opening and closing device comprises a pneumatic valve, a pressure regulating valve, a first connecting pipeline structure and a second connecting pipeline structure, the inlet end of the pneumatic valve is connected with a vacuum negative pressure connector of the launching unit support through the first connecting pipeline structure, and the outlet end of the pneumatic valve is connected with a port of the gas tank distributor through the second connecting pipeline structure. The pressure regulating valve is connected to the control end of the pneumatic valve, the inlet end of the pressure regulating valve is connected with a control gas pipe, and the other end of the control gas pipe is connected to a control gas section of a transmitting gas one-way valve of the filter stick transmitter. Compared with the prior art, the utility model has the following advantages: the automatic opening and closing of the vacuum negative pressure pipeline are realized, the on-demand supply of negative pressure is realized, and the energy consumption is saved.