9results about How to "High maintenance costs" patented technology

The invention relates to the technical field of chip design, in particular to a timing constraint automation generation method. According to the method, the actual demand of the clock needing to be created is determined based on the design document, and then the clock list is generated based on the actual demand; the content of the clock list comprises a PLL source, a clock type, a clock name, a source path, a main clock name, a main clock source path, a frequency, a main clock duty ratio, a derivative clock duty ratio, a frequency division coefficient, whether the clock has a cross-clock requirement or not, and the mutual relation between the created clocks; executing the script in a clock list which needs to be read by the configuration script and the specified script; and traversing all options in the clock list by the script, generating a time sequence constraint, and automatically finishing GCA check. According to the method, timing constraint compiling and checking can be automatically achieved through the script only by completing output of the clock list, and the method for compiling the timing constraint is accurate and easy to maintain.

The present invention discloses a filter for dusty oil and gas, comprising a cylinder, the top of which is connected to a top cover, the bottom of which is connected to a cone, a first bypass port and a second bypass port are provided on the top cover and the cylinder, the two are connected through a pipeline to form an external passage, and a bypass valve is provided on the pipeline; a plurality of filter elements are provided in the cylinder; a first heating component and a second heating component are provided on the outer wall of the cylinder and the cone. The filter of the present invention, under the joint action of the heating component and the external passage, can not only ensure that the interior of the cylinder and the cone always maintains a relatively high temperature, but also can timely dredge the filter element during operation, thereby achieving effective separation of dust and oil and gas, and effectively avoiding abnormal phenomena such as negative pressure inside the filter, having the advantages of high processing efficiency, good filtering effect, low maintenance cost, high safety, long service life, etc., can effectively remove dust in the oil and gas when used for filtering dusty oil and gas, has high use value, and good application prospects.

A computer vision-based method for calculating the volume of stacked goods within a regular cube space is disclosed. This method trains a neural network for semantic segmentation using the projected images of the stacked goods on both sides of the cube to obtain a model for calculating the projected area of ​​the stacked goods. This model is then used to calculate the projected area of ​​the collected image data to determine the volume of the stacked goods within the regular cube space. This method avoids the problems of human error and subjective judgment inherent in traditional manual observation methods, and also avoids the drawbacks of instrument measurement methods, such as high equipment costs and maintenance expenses, and susceptibility to environmental interference. It enables accurate and efficient real-time calculation of the volume of stacked goods within a regular cube space.

The invention belongs to the technical field of medicinal chemistry, and particularly discloses ergosterol of a spherical crystal and a preparation method thereof. The preparation method comprises the following steps: heating and mixing ergosterol and ethyl acetate to obtain a mixed solution; and cooling the obtained mixed solution to a crystal growing temperature, growing the crystal, and filtering after the crystal growing is finished, so as to obtain the ergosterol of a spherical crystal. Compared with traditional flaky or needle-shaped crystals and spherical crystals prepared by other methods in the market, the ergosterol of the spherical crystal prepared by the invention has good fluidity, and a series of problems caused by material addition can be greatly improved, so that the industrial production cost is reduced, and the economic benefit is increased.

The invention relates to the technical field of power transformer equipment, and particularly discloses an electric power engineering oil-immersed power transformer convenient to install, which comprises a cuboid-shaped body, and the upper surface of the body is fixedly connected with a top plate. When the air pressure groove conveys air into the inserting pipe, the air pressure can enter the mounting pipe through the air pressure hole, namely, the air pressure in the mounting pipe is gradually increased, and then a pushing force is generated on the pushing plate through the auxiliary groove, so that the pushing plate moves towards the outer side along the limiting rod; according to the transformer installation device, the insertion plate is moved out of the insertion groove to be inserted into a hole reserved in the cement base, then the transformer is rapidly installed, the installation steps are greatly reduced, the installation efficiency is improved, the insertion plate can be effectively protected by arranging the insertion plate in the insertion pipe at the initial time, and the installation efficiency of the transformer is improved. And the situation that the plug board is bent and cannot be plugged and installed in the transportation process is avoided, so that the working stability of the transformer is improved.

The invention belongs to the technical field of medical data analysis, and discloses a hemodialysis sufficiency prediction method based on transfer learning, and the method comprises the steps: S1, collecting and processing dialysis data: taking time increment, conductivity and temperature as input variables, and carrying out the standardization processing; and S2, model training: carrying out regression prediction model training on the data processed in the step S1 by using an improved multi-source domain TrAdaboost algorithm. The algorithm comprises the following steps: firstly training a plurality of weak regression devices, gradually improving the performance of each weak regression device through multi-round iteration, and finally constructing a strong regression model as a final prediction model by integrating the plurality of weak regression devices; and 3, dialysis sufficiency prediction: inputting new patient data into the final regression model trained in the step 2, and performing dialysis sufficiency prediction. The dialysis sufficiency is effectively predicted through the conductivity and the temperature.

A communication controller with an automatic spraying function belongs to the technical field of coal mine spraying, and input terminal strip wires DC24V-and I2.0 of a PLC (Programmable Logic Controller) in the communication controller are connected with a magnet type sensor. And a 127V connecting wire of the PLC is connected with a power supply binding post of the electric ball valve and a normally open connecting wire C end of the relay. And a Q0.5 terminal of the PLC is connected with a Q0.5 terminal of the relay. And the normally open terminal G of the relay is connected with the other power binding post of the electric ball valve. The magnet type speed sensor is arranged above the belt conveyor, and the magnet is hung below the magnet type speed sensor. An original outsourcing main control box of an automatic spraying device is omitted, a PLC in a communication controller used for controlling the rubber belt conveyor is used for controlling, meanwhile, an original electronic touch sensor is changed into a magnet type speed sensor to achieve the automatic spraying function, the equipment failure rate is reduced, the control reliability is improved, funds are saved, and safe operation of equipment is guaranteed.

The invention belongs to the technical field of wireless communication, and particularly discloses a short-wave transmitter and method for inhibiting intermodulation and harmonic distortion, and the short-wave transmitter is designed based on a digital pre-distortion method, and comprises a digital pre-distortion algorithm module, an orthogonal up-conversion module, a digital-to-analog converter, a power amplifier, an analog-to-digital converter and an orthogonal down-conversion module, a first input end of the digital pre-distortion algorithm module is connected with a baseband signal, a second input end is connected with an output end of the orthogonal down-conversion module, an output end of the digital pre-distortion algorithm module is connected with an input end of the orthogonal up-conversion module, an output end of the orthogonal up-conversion module is connected with an input end of the DAC, an output end of the DAC is connected with an input end of the PA, an output end of the PA is connected with an input end of the ADC, and an output end of the ADC is connected with an output end of the ADC. And the output end of the ADC is connected with the input end of the orthogonal down-conversion module. The short-wave transmitter provided by the invention not only realizes suppression of intermodulation distortion and harmonic distortion at the same time, but also improves the linearity of the power amplifier.

The present invention belongs to the technical field of safety monitoring of marine boilers. The present invention discloses a safety monitoring platform for marine boilers. The method comprises: setting a safety monitoring device for marine boilers, collecting boiler status characteristic data, the boiler status characteristic data comprising working status data and standard working status data in the boiler, the working status data comprising real-time working status data, preset flue gas emission and preset water hardness; evaluating whether the boiler is operating through the real-time working status data, and generating a working safety assessment coefficient; comparing and analyzing the working safety assessment coefficient with a preset working safety assessment coefficient threshold, and determining whether to generate an early warning message; if the early warning message is generated, inputting the flue gas emission characteristic data and the standard flue gas emission characteristic data into a pre-constructed boiler flue gas emission prediction model, obtaining the predicted flue gas emission, and determining whether to generate an operation stop instruction, thereby improving the safety of the use of marine boilers.