33results about How to "Reduce Uncertainty Risk" patented technology

The invention relates to a steering shaft for a flatbed vehicle with solid tires, which is characterized in that the steering shaft includes a flat plate and a steering shaft. A conical sleeve and a gasket, the gasket is fixed by a round nut, and the lower part of the steering shaft is connected with a rotating assembly. Compared with the prior art, the present invention has the following advantages. The technical scheme has long service life, low maintenance cost, short maintenance time, significantly improved efficiency, significantly reduced maintenance workload, and effectively shortened maintenance time and labor intensity and the process of turning over. Uncertain danger exists, which reduces the frequency of production operation driving combined with maintenance and turning over, effectively solves the contradiction when there is no gap when the production is busy, and the flatbed car is damaged and needs to be repaired, and it also avoids the flatbed car in the process of turning over. Due to the limited conditions, it is easy to damage the appearance quality of the coil and cause quality objections.

The invention discloses a method and system for measuring the timeliness of accounting information. The method includes: obtaining the actual earnings per share of a company to be analyzed within a certain period of time, and calculating the current stock price of the company based on the actual earnings per share; Based on the company's current stock price and the average value of the company's earnings per share within a certain period, the expected value in three years is constructed; based on the expected value and the average value of the company's earnings per share within a certain period, the company's current excess return rate of individual stocks is constructed; based on Construct the series data of earnings per share based on the excess return rate of individual stocks in the current period, and construct the series data of stock return rate based on the excess return rate of individual stocks in the current period; obtain the timeliness factor and stock return rate fitting program increment of the stock return rate correlation coefficient increment measurement Measured timeliness factor; yield determination based on an optimized five-factor model. In the embodiment of the present invention, the relevance and reliability of accounting information are improved, and the risk of information uncertainty is reduced.

The invention discloses a control device and a method for HSCB (high-speed circuit breaker) automatic re-operation under a subway train VVVF (variable voltage and variable frequency) fault work condition. The device comprises a drive control unit, an analog circuit processing unit of the drive control unit is used for converting a VVVF state signal into a voltage signal and real-timely outputting the voltage signal to a real-time fault protection programmable logic unit and a digital signal processing unit for use in real-time fault hardware protection and real-time voltage and current sampling, and the digital signal processing unit is connected with an embedded processing unit through a parallel data bus; the real-time fault protection programmable logic unit and a digital quantity input / output programmable logic control unit are connected with the embedded processing unit through the parallel data bus; the embedded processing unit is connected with a subway train network system through an MVB bus. The method is realized based on the device. The device and the method have the advantages of fast operating speed, precise sampling, precise control, and high automatization degree, and can reduce the operating strength of a driver and improve the operating reliability.

The present invention provides a method for realizing PLC interactive FC function functions. PLC drives the driver through driving instructions. PLC includes FC function sub-modules, and FC function sub-modules include FC function functions. FC function functions include: jog / inch control strategy, Single-action control strategy, speed / torque / displacement control strategy, fault acquisition and fault reset strategy, actual parameter reading and writing and dynamic parameter writing strategy, among which, the FC function uses time-sharing trigger MASTER or extended frame + data frame interactive command, Secondary retransmission mechanism. This method can solve the problem of unification of interaction between different PLCs and different drivers, improves the interaction efficiency and flexible setting of network nodes, and greatly reduces the uncertainty risk caused by procurement. It adopts parameter input and output methods, and FC function function It adopts black box encapsulation and encryption, flexible and convenient program reference, and can realize various complex control functions.

The invention discloses a device for rotary drilling and coring to measure the thickness of sediment of a pile foundation and a construction method. The device comprises a plurality of rotary drillingrods, conical type movable drill bits, a rotary drilling plate and a base plate, wherein the number of the rotary drilling rods is set according to the different depths of the pile foundation; each conical type movable drill bit is mounted at the bottom of the corresponding rotary drilling rod; a spiral threaded cap is arranged between each rotary drilling rod and the corresponding conical movable drill bit; by each spiral threaded cap, the corresponding rotary drilling rod and the corresponding conical type movable drill bit are fixed; the rotary drilling plate is mounted at the upper ends of the rotary drilling rod; the base plate is mounted at the position of a protecting barrel opening of the pile top of the pile foundation; a movable tooth block which can be opened is arranged on thebase plate; after the movable tooth block is opened, the rotary drilling rods are inserted in the pile foundation at the position of the opening; and the rotary drilling rods are further provided with protruded ribs, and cooperate with the base plate to limit through the protruded ribs. The device further comprises an external measuring barrel. The thickness of the sediment of a pile bottom can be measured effectively, a construction process is simple, and an operator easily operates the device.

The invention discloses a high-voltage DC non-isolated voltage sampling circuit, which introduces a quantity resistance at the sampling end of the MCU AD, greatly reduces the common-mode noise introduced by the sampling signal loop length, and attenuates the common-mode noise amplitude by 10 times from the source, ensuring The MCU AD sampling terminal truly reflects the signal at the sampling terminal, which reduces the uncertain risk of PCB layout engineers on non-isolated common-mode noise processing, speeds up the project development cycle, and ensures that the system control can run stably for a long time.

The invention discloses a method for checking the reality of an ocean color remote sensing product. The method comprises the following steps: (1) reconstructing a long time sequence remote sensing data set; (2) computing and integrating based on the time-space variation characteristics of the remote sensing data set; (3) carrying out quality control and screening on a practical measurement data set for checking the remote sensing product; (4) checking generation of data sets by practical measurement-remote sensing data based on a time-space matching rule; (5) carrying out risk level division on the eligible matched data sets; and (6) computing indexes for checking the data reality of the remote sensing product. According to the method, the representativeness and the reasonability between the remote sensing product data and the checking practical measurement data can be checked, the matched data sets are screened and generated, and an evaluation method for different risk levels is obtained, so that the evaluation results are diversified and reasonable, the uncertain risk in the checking process is lowered, and the checking credibility is improved.

The invention discloses a manufacturing method of a coiled bipolar membrane. The method includes: 1) unreeling a coiled sulfonated polystyrene-polyethylene cation exchange dry film reel and a polyolefin film reel respectively, then performing overlapping, then conducting hot-pressing by a four-roll hot press, cooling by a five-roll cooling unit and winding by a winder in order, thus obtaining a single-side coated polyolefin coated positive membrane roll; 2) loosening the polyolefin coated positive membrane roll, spraying a polymeric monomer solution containing a functional monomer, a crosslinking agent and an initiator to the coating surface, carrying out overlapping with a polyester protective film alternately, and performing compaction, then performing winding, placing the whole object in a constant temperature oven and conducting heating to initiate polymerization, and stripping the polyester protective film to obtain an absorption positive membrane roll with single side containing a functional polymer; and 3) selecting a polypropylene isolation net and the absorption positive membrane roll obtained in step 2) to conduct loose alternate winding, carrying out amination reaction in a mixed water solution of dimethylamine and trimethylamine, performing washing, then stripping the polypropylene isolation net, and winding a wet film individually, thus obtaining the coiled bipolar membrane.

The invention provides a multi-channel automatic infusion pump, comprising: a pump body, a pump door, an infusion switching mechanism, an exhaust device and a bubble detection device arranged on the pump body; Clip fixing seat and driving structure, the multi-channel liquid stop clip includes a body and N channels formed on the body, each channel includes a liquid passage section and a liquid stop section, and the liquid passage section and the liquid stop section on each channel It is arranged that when any one of the upper branch pipes is located in the liquid-through section of the corresponding channel, the other upper branch pipes are located in the liquid-stop section of the corresponding channel; the driving structure is arranged at the upper end of the pump body, It is movably connected with the multi-channel liquid stop clip, and is used to drive the multi-channel liquid stop clip to move back and forth along the sliding channel, so that the upper branch pipe is selectively communicated with the main pipe. The invention can insert at least two bags of liquid medicine at one time, and has simple operation and saves time and effort.

The invention provides a multi-channel automatic infusion control device, comprising: a pump body, a pump door, an infusion switching mechanism, an exhaust device and a bubble detection device arranged on the pump body; the infusion switching mechanism comprises a multi-channel liquid stop clip, a stopper A liquid clip fixing seat and a driving structure, the multi-channel liquid stop clip includes a body and N channels formed on the body, each channel includes a liquid passage section and a liquid stop section, and the liquid passage section and the liquid stop section on each channel The section is set so that when any one of the upper branch pipes is located in the liquid passage section of the corresponding channel, the other upper branch pipes are located in the liquid stop section of the corresponding channel; the driving structure is arranged on the upper end of the pump body is movably connected with the multi-channel liquid stop clip, and is used for driving the multi-channel liquid stop clip to move back and forth along the sliding channel, so that the upper branch pipe is selectively communicated with the main pipe. The present invention can access at least two bags of medicinal liquid at one time, is simple in operation, and saves time and effort.