7results about How to "Avoid repeated switching" patented technology

The invention relates to the technical field of dissolved gas determination, and discloses a method and a system for on-line in-situ determination of the concentration of dissolved oxygen in an organic liquid phase. The method comprises the following steps: introducing an organic liquid phase containing dissolved oxygen into a gas-liquid separation membrane, and guiding the organic liquid phase containing dissolved oxygen to flow along a first surface of the gas-liquid separation membrane; guiding a gas phase separated out from the organic liquid phase to flow along the second surface of the gas-liquid separation membrane, and detecting the oxygen content of the obtained gas phase; wherein the gas-liquid separation membrane comprises a membrane tube base body, a plurality of inner holes are formed in the membrane tube base body in the axial direction, oxygen permeation membranes are formed on the surfaces of the inner holes, and the membrane tube base body is of a porous structure; the first surface is the outer surface of the oxygen permeable membrane; and the second surface is the outer surface of the membrane tube base body. The method can be applied to online in-situ determination of the content of dissolved oxygen in the oil phase under a high-temperature working condition and / or in the presence of low-boiling-point organic matters, and is simple and convenient to operate, relatively small in deviation and convenient for industrial implementation.

The invention discloses a wind power resource drought degree assessment method and related equipment. The method comprises the following steps: acquiring hourly wind speed data of a target area in historical and evaluation periods, and determining an hourly wind power output sequence in combination with a wind turbine power curve; determining a reliable output reference value and a recharging threshold value for each duration t based on historical wind power output sequence samples and historical sample statistical distribution of each duration t; calculating the equivalent energy buffer capability of the system for resisting the wind power debt in the evaluation window; based on the reliable output reference value and the recharging threshold value, calculating a power gap and a power surplus hour by hour; according to the reliable reference gap power which is not met by the stored energy and the stored energy state, calculating an operation conferring; and calculating a wind power resource drought index based on the equivalent energy buffer capability and the operation femur. The problem that existing methods for quantifying and analyzing the drought of wind power resources comprise a fixed threshold value method, a relative distance flatness method and a standardized index method can be solved.

The application discloses a kind of based on the building engineering management system and application method of government-enterprise interconnection, the system includes: enterprise data acquisition end, supervision data acquisition end, supervision subsystem and enterprise management subsystem;Enterprise data acquisition end carries out the collection to the internal management data of participating enterprise, and the supervision data is sent to supervision data acquisition end;Supervision data acquisition end sends supervision data to supervision subsystem;Supervision subsystem receives and stores supervision data, and returns supervision data to enterprise management subsystem;Enterprise management subsystem receives supervision data, and according to the preset data analysis strategy, the supervision data is analyzed.Can realize supervision data sharing, avoid the management mode of single supervision to project, by integrating supervision data acquisition end, supervision subsystem and enterprise data acquisition end into a system, so as to avoid that technical personnel repeatedly switches different management work and carries out data repeated input, improve the convenience of use.

The invention discloses a non-feed network photovoltaic air conditioning system and a control method thereof.The non-feed network photovoltaic air conditioning system comprises an air conditioning unit, a photovoltaic controller used for supplying power to the air conditioning unit and an alternating current mains supply, and the alternating current mains supply is connected to a direct current bus through a power factor correction circuit; the photovoltaic controller is connected to a direct current bus through a first conversion module, and the first conversion module and the power factor correction circuit can construct bus voltage of the direct current bus. Compared with the prior art, the non-stop operation of the air conditioning unit can be realized under the photovoltaic condition when the alternating current mains supply is powered off, and meanwhile, the smooth transition from the off-grid state to the grid-connected state is realized when the alternating current mains supply is powered on.

This invention provides a switch state detector, comprising: a magnetic component and a sensing component. The sensing component is used to detect magnetic induction intensity and is configured to: send a first message when the distance parameter between the magnetic component and the sensing component gradually decreases to a first interval ending at a first threshold; and send a second message when the distance parameter between the magnetic component and the sensing component gradually increases to a second interval starting at a second threshold. The first interval and the second interval do not overlap, and the difference between the second threshold and the first threshold is greater than or equal to 1 mm. The switch state detector provided by this invention can prevent the sensing state from repeatedly switching when the distance between the magnetic component and the sensing component reaches a certain critical value.

The present application relates to the technical field of automotive interior parts, and discloses a skin lifting device of a computer cutting bed, which comprises a device platform, two first supporting rods and two second supporting rods arranged on the device platform, and a rotary lifting device, two triangular curved arms are arranged on the two sides of the rotary lifting device, the top ends of the two triangular curved arms are respectively hinged to the outer ends of a second supporting rod, and an arm swing cylinder drives the triangular curved arms to rotate around the top ends; the vertical lifting device comprises two temporary storage bases arranged on the outer sides of the upper second supporting rods, and the temporary storage bases are connected with lifting cylinders for driving the temporary storage bases to move up and down; the end of the first supporting rod is hinged to a flap, and the flap is located directly above a second V-shaped groove. The present application further discloses a lifting method of the skin lifting device of the computer cutting bed. The skin lifting device of the computer cutting bed and the lifting method thereof realize automatic lifting and layered placement of the skin and kraft paper, avoid the phenomenon that the broken part is not perpendicular when the cloth is broken at a subsequent station, and improve the utilization rate of the skin.

The present application relates to the technical field of intelligent communication control, in particular to a multi-protocol data interaction method and system integrated with cloud management and host computer control. The system comprises a mainboard, a cloud background management system and a host computer management system. The mainboard is provided with multiple independent serial ports, forming multiple RS485 ports and at least one RS232 port. The mainboard receiving port is configured with a proposal and generates a shadow configuration. An original frame ring buffer area is established according to the port, and the original byte sequence and the receiving time and frame interval are stored. The shadow configuration is verified based on the buffered frame playback, and a verification report, a shadow digest value and a verification digest value are generated. When the digest is consistent and meets the safety switching window, the atomic switching is switched to the effective configuration. After taking effect, the multi-protocol is parsed and converted into a unified format for uploading, and the control instruction is mapped to the target protocol frame for issuing, thereby improving the configuration online reliability.