30results about How to "Strong certainty" patented technology

The invention discloses a tree network-based multistage server networking communication method which can be applied to a video conference system. Forwarding servers are deployed according to conference participant distribution and network bandwidth condition; stage classification and code management are carried out on each server; a sending end sends data to a server (S10), the server (S10) distributes the data to a receiving end, and at the same time forwards the data to an upper-stage node server (S0) and forwards the data to a plurality of lower-stage node servers (S200, S201); and the lowest-stage node servers directly distribute the data to the receiving ends connected with the lowest-stage node servers. According to the tree network-based multistage server networking communication method, the problem of poor intercommunication among internet operators can be solved, and the method can be better adaptive to a physical network structure of an enterprise private network.

The invention discloses a wireless communication terminal positioning method. A movable positioning device is used for positioning a target device; the movable positioning device measures the sum of time for propagating a signal from a base station to the target device and time for propagating the signal from the target device to the positioning device; an elliptic line with the position, where the base station and the positioning device are located, as the focus is determined; when a downlink signal and an upper uplink signal which are detected by the target device and the positioning device respectively are directly propagated, it is considered that the target device is on the elliptic line; when the downlink signal and the upper uplink signal which are detected by the target device and the positioning device respectively are not directly propagated, it is considered that the target device is located in the elliptic line; by means of multiple times of measurement, the intersection point of previous ellipses is used as the preferential positioning position for searching for the target device, whether position determining conditions are met or not is measured, and finally the position of the target device is determined. The wireless communication terminal positioning method has the advantage of being high in positioning precision and positioning efficiency.

The invention relates to a concrete slump inference method based on a mix proportion and raw material performance. According to the method, the accumulation gap condition of sandstone, the sandstone proportion, the mucilage flowing property, the mucilage filling gap degree, the additive water reducing property and the like are merged into a mathematical formula; the quantitative relation among thedosage proportion of concrete raw materials, performance indexes and the slump of a mixture is disclosed, and the method can be used for designing and examining the mix proportion of concrete and controlling the mixing production quality.

The invention discloses a well-to-seismic collaborative sedimentary microfacies division method based on a high-precision sequence framework model, and the method comprises the steps: building a matching relation of well-to-seismic sedimentary facies features based on the lithologic combination of a stratum under a high-precision sequence stratum shelf and the seismic response features of sedimentary body cycle features, and optimizing the seismic attributes sensitive to the types of stratum sedimentary facies; and establishing a three-dimensional data volume for researching sedimentary subfacies and microfacies of a target layer through well-to-seismic collaborative simulation. And verifying the reliability and accuracy of the sedimentary facies three-dimensional data volume through a phase sequence rule, and finally obtaining a sedimentary facies division result suitable for industrial standards. According to the three-dimensional data volume of the sedimentary microfacies, the working efficiency of sedimentary facies division can be greatly improved, the transverse resolution and the longitudinal resolution are high, and the determinacy and the reliability of sedimentary microfacies fine division results are higher.

The invention discloses a no-power-stoppage conversion circuit breaker set sequential control method for 30-degree angular phase difference power distribution lines. Through selecting a standby circuit breaker, a remedial measure on the condition of action rejection of a loop closing circuit breaker or a loop unlinking circuit breaker is realized. Through a method of sequentially controlling the circuit breakers, high definiteness is realized. The no-power-stoppage conversion circuit breaker set sequential control method is suitable for a 30-degree angular phase difference power distribution line loop-closing or loop unlinking occasion in high-speed communication.

A communication method in an automation system, wherein the system comprises an access point and client terminals that receive downlink data sent from the access point and send uplink data to the access point, and the data transmission is divided into a master multiple receiver aggregation phase and more than one slave multiple receiver aggregation phases. During the master multiple receiver aggregation phase, the access point aggregates the data to be sent to the plurality of client terminals into one packet for transmitting in the downlink, and during the slave multiple receiver aggregation phases, the access point aggregates data in which errors have occurred when being transmitted during the master multiple receiver aggregation phase into one packet for transmitting in the downlink. The method can have strict control, through the access point and over the uplink and downlink data transmission, thus enhancing the certainty during automation communication and further reducing the cycle time.

The present invention discloses a method for determining crack propagation characteristics of a turbine engine rotor. The method comprises defect fabrication, structural member forging blank fabrication, test block design, test block fabrication, gantry orthogonal fatigue test, and full focus phased array detection correspondence establishment, CT three-dimensional reconstruction detection correspondence establishment, test block fracture analysis, structural parts fabrication, structural part defect identification, structural part fatigue test, structural part internal crack detection, structural part surface crack detection, structural part fracture analysis. The method solves the problem of determining location and size of defects and cracks. The method achieves the purpose of quantitative analysis of internal cracks and internal characteristics of surface cracks and achieves the purpose of mastering the crack propagation law and further achieving damage tolerance design. The methodhas strong crack propagation characteristics determination ability, and solves shortcomings of the existing crack propagation characteristics determination technology.

The invention relates to a program solidifying method based on the Ethernet. The method comprises the steps of initializing an end to be loaded, establishing network connection between a loading end and the end to be loaded so as to finish synchronization, enabling the loading end to load files to be solidified to the end to be loaded, and enabling the end to be loaded to solidify the files to be solidified into a Flash storer one by one through calling a writing Flash drive program according to a file loading information table. According to the program solidifying method, the characteristic that the Ethernet is quicker in transmission speed than media such as serial ports is utilized, and the files to be solidified are loaded from the loading end to the end to be loaded quickly, so that time needed by loading files is effectively shortened, and program solidifying efficiency is improved.

The invention discloses a 664 network message construction algorithm, which comprises the following three steps of: determining the basis of a message algorithm, performing macro definition and valuecalculation thereof, and performing MESSAGE supplementary construction caused by DP deletion, modification and increment. The MESSAGE algorithm based determination comprises two-layer classification of DP in the same APP, internal construction of DS and internal DS classification of Message; the macro definition and value calculation comprises setting of main parameters and macro definitions, determination of a limiting relation satisfied between the macro definitions, and calculation of macro definition values; MESSAGE supplementary construction caused by DP deletion, modification and increment comprises determination of algorithm design limiting conditions, determination of a processing method of a deletion module, determination of a processing method of a modification module, determination of a processing method of an increment module and determination of a relationship among the three modules; the Message internal DS classification includes a simple and optimized filling method. According to the invention, various choices can be provided, the bandwidth utilization rate is higher, fewer switches are needed, the network delay is lower, the jitter is lower, the network determinacyis stronger, and the 664 network physical structure setting requirement applied to airplanes is fully met.

The invention discloses a method for detecting maturity of fruits on a tree based on a visual saliency map. The method comprises the following steps: firstly, acquiring a fruit tree image through a camera, and identifying the fruits on the tree by using a YOLOv5 target detection algorithm; cutting fruit image blocks by using a bounding box coordinate output by the YOLOv5, and obtaining a visual saliency image by using an improved MSSS visual saliency detection algorithm; and the fruit image blocks and the corresponding visual saliency images are connected in series to form a four-dimensional RGBS image, and the maturity category of the fruit is judged by using an image classification network ResNet34 in combination with RGB and saliency information of the fruit local image. The detection method provided by the invention is excellent in accuracy and robustness, and is suitable for the conditions of complex scene and changeable illumination in a natural environment.