88results about How to "Speed balance" patented technology

The invention provides a video transmission method and a device with high fault tolerance and low latency which is applied to deep space communication, wherein, the method comprises a video coding step, a base-layer data transmission step, an enhancement-layer data transmission step and a video decoding step. In the video coding step, acquired video data is processed through scalable video coding, and a scalable video coding code stream includes a base-layer code stream and at least an enhancement-layer code stream; in the base-layer data transmission step, the base-layer code stream in the scalable video coding code stream is extracted and transmitted by using an automatic retransmission request method, and the network packet loss rate is calculated when the transmission of the base-layer code stream is finished; in the enhancement-layer data transmission step, the enhancement-layer code stream is extracted, the obtained parameter is calculated for channel coding and transmission according to the packet loss rate by combining the channel coding technology for Athlon code, and the received enhancement-layer code stream is processed through channel decoding; and in the video decoding step, the received base-layer code stream is processed through video decoding, and the enhancement-layer code stream which is processed through channel decoding is processed through video decoding by combining the received base-layer code stream.

The invention discloses a method for removing heat-stable salts in amine desulphurization, aiming at solving the problem that the prior art has difficulty in treating desulphurizer with high content of sulfate radical. The method is as follows: strong base type II anion exchange resin with particle size of 0.5-1.5mm is filled in an ion exchange resin tower with height-diameter ratio of 1:1-3:1, the desulphurized amine solution with PH value less than 5.4 passes through the ion exchange resin tower at the airspeed of 30h-50h to experience purifying treatment, when the PH value of the desulphurized amine solution at the exit of the resin tower is equal to that at the entrance of the resin tower, sodium hydroxide solution is used to carry out upflow regeneration on the ion exchange resin, and the regenerated ion exchange resin is recycled. The method can solve the problems of rapid cumulative rate and large total content of the sulfate radical in reproducible wet method flue gas desulphurization system.

The invention relates to the technical fields of medical image processing, three-dimensional visualization and communication, and discloses a method for processing and displaying image data in a PACS (Picture Archiving and Communication System) by a mobile terminal. The method comprises the following steps: taking an intermediate server as a proxy of the mobile terminal and acquiring an image list from a server of the PACS system; and acquiring the image data from the server of the PACS system by using the acquired image list and using the intermediate server as the proxy through the mobile terminal. According to the method disclosed by the invention, original image data in the PACS system are processed and displayed by the mobile terminal, and thus the effect of the image data in the PACS system can be browsed anytime and anywhere.

The invention discloses an intelligent detection and early warning method and system for an outer envelope in a prostate operation. The method comprises the following steps: 1) acquiring outer envelope image data in a prostate operation video; 2) carrying out gray processing and singular value decomposition on the outer envelope data, and extracting a principal component characteristic value of the image; 3) performing image enhancement on the outer coating image after the image preprocessing in the first step by adopting a deep bilateral learning method; 4) neural network training; 5) detection and early warning. According to the invention, the latest artificial intelligence image recognition technology is utilized to carry out target detection on the prostate envelope, so that an intelligent early warning function is provided for the operations. Different from the existing static medical image recognition technology, the method is characterized in that dynamic images of an operationsite video need to be recognized, early-warned and analyzed. By means of image preprocessing measures such as data expansion, principal component analysis and image enhancement, speed and precision are balanced, and the actual application requirements of prostate operation auxiliary early warning are met.

The invention provides a control method, a control system and a refrigerator. The control method is used for controlling the rotation speed of a draught fan of the refrigerator, and includes the steps that according to a received draught fan start request, whether current environment temperature is larger than or equal to a first preset temperature value is judged; a rotation speed threshold range of current compressor rotation speed of the refrigerator is determined according to a judgment result, and draught fan work voltage of the refrigerator is adjusted according to the rotation speed threshold range so as to determine the rotation speed of the draught fan. By means of the technical scheme, the rotation speed of the draught fan can be reasonably adjusted through cooperation of the environment temperature, the compressor rotation speed and refrigeration requirements of chambers in the refrigerator, so that start and stop time of a compressor is optimized and overall energy consumption of a refrigerator system is reduced while the cooling speed is guaranteed.

The invention discloses a parameter identification method of a synchronous generator excitation system, which is used for outputting an optimal solution of a parameter Theta of the synchronous generator excitation system. The parameter identification method comprises the following steps of building an excitation system simulation module M; determining an equivalent standard J; and carrying out disturbance test on the excitation system with a signal X, and acquiring each real response index Y<Ri>. The parameter identification method also comprises the following steps of determining weight W corresponding to the Y<Ri>, wherein Sigma W is equal to 1; selecting a value of the parameter Theta, substituting the value of the parameter Theta into the M, carrying out disturbance test on the M with the signal X, and acquiring each real response index Y<Ii>; calculating an error e between the Y<Ii> and the Y<Ri>, and calculating a weight value e<W> of the error e if the error e conforms to the equivalent standard J; and taking the value of the parameter Theta as the optimal solution to be output if the e<W> is the minimum e<Wmin>, wherein the numbers of the Y<Ri> and the Y<Ii> are both N, and i is equal to 1, 2 until N. By the parameter identification method, the optimal solution can be found out from a parameter solution cluster of the synchronous generator excitation system, and the identification speed is increased within an acceptable precision range to the great extent.