37results about How to "Improve scientific rationale" patented technology

The invention discloses a method capable of dynamically partitioning traffic control subregion, including the following steps: acquisition of relevant data for associativity analysis; determining degree of association of adjacent crossings by utilizing the acquired data; further determining combination degree of association of multiple crossings; traversing all possible control subregion partition schemes by adopting subregion partition layer diffusion algorithm and selecting the control subregion partition scheme with maximum performance index by comparation; and partitioning a new traffic control subregion according to the maximum performance index scheme obtained in real time. The invention provides the definition of the degree of association of adjacent crossings and analysis algorithm thereof and realizes effective combination of association key elements of the adjacent crossings; and the provided coordination control subregion partitioning method based on analysis of the degree of association considers various factors influencing the control subregion partition and realizes mensuration, standardization and systematization of the control subregion partition.

The invention relates to the technical field of coal mining, and in particular relates to a testing device and a measuring method for the anchorage performance of a coal and rock mass in a coal mine tunnel. The testing device comprises a force applying device, a forcemeter, a first displacement sensor, a first anchor rod and a second anchor rod, wherein the first anchor rod and the second anchor rod are fixedly anchored on the coal and rock mass in the coal mine tunnel; the force applying device and the forcemeter are arranged on the first anchor rod; the force applying device is used for applying a drawing force on the first anchor rod; the forcemeter is used for detecting the magnitude of the drawing force of the force applying device to the first anchor rod; one end of the first displacement sensor is fixed on the first anchor rod while the other end of the first displacement sensor is fixed on the second anchor rod; and the first displacement sensor is used for detecting the displacement of the first anchor rod relative to the second anchor rod under the drawing force of the first anchor rod applied by the force applying device. The device and the method have the beneficial effects that a stably-positioned reference point is obtained in the coal mine tunnel, so that a relation curve between the drawing force and the displacement of the anchor rod can be obtained by measuring multiple groups of drawing forces and the displacements of the anchor rods on the basis of the reference point. Thus, the foundation for further understanding the anchorage performance of the coal and rock mass and carrying out the supporting design on the anchor rods is laid.

The invention relates to a plantation density optimizing and analyzing method based on three-dimensional virtual plants. The plantation density optimizing and analyzing method based on the three-dimensional virtual plants is characterized by including the following steps of S10, obtaining morphological structure characteristic parameters of a target planted tree species; S11, placing a three-dimensional model of the target planted tree species on a three-dimensional digital terrain based on the three-dimensional digital terrain which simulates a planted land; S12, calculating the light transmittance and the daily average light transmittance of standing forest colony tree canopies with different plantation densities in different growth stages according to the ray tracing algorithm in the computer graphics; S13, analyzing whether the light transmittance of a standing forest in different growth stages is reasonable or not, outputting the plantation densities, the plantation point configuration method, the line spacing, the plant spacing and the row direction if the light transmittance is reasonable, and repeating the S11, the S12 and the S13 if the light transmittance is not reasonable till the light transmittance is reasonable. According to the plantation density optimizing and analyzing method based on the three-dimensional virtual plants, the quantitative analysis tool can be provided for the plantation design, the intuitive and vivid auxiliary tool can be provided for agriculture technology promotion, and sustainable management, yield promotion and income increasing of forest districts are promoted.

A decentralized power spot market transaction simulation method, which first establishes a typical load daily transaction space model based on typical daily actual grid power consumption and large-scale user direct transactions, then establishes a decentralized power spot market transaction simulation model, and establishes an evaluation index system , design different trading schemes, and then calculate the evaluation indicators of each trading scheme according to the obtained trading simulation results, and finally carry out trading scheme analysis and sensitivity analysis according to the evaluation indicators of each trading scheme to verify the rationality of each trading scheme in the power spot market and analyze possible risks. This design can not only realize the effective simulation of the electric power spot market scientifically and rationally, but also accurately reflect the transaction reality of the initial stage of the electric power spot market.

A monitoring and early warning method for citrus diseases and insect pests based on distributed compressed sensing WSN, which applies distributed compressed sensing and wireless sensor networks to environmental monitoring of citrus crops and early warning of citrus diseases and insect pests. Including the use of distributed compressed sensing technology to perform joint sparse representation, coding measurement and joint information reconstruction of image data monitored by wireless sensor network nodes; apply DCNN (deep convolutional neural network) algorithm for image pattern recognition, and establish pest parameters ( image) feature library; quantify the biological information and environmental information parameters of citrus pests and diseases, and issue early warnings of pests and diseases accurately and timely according to the decision-making mechanism. The invention utilizes the image processing technology of distributed compressed sensing to reduce the transmission pressure of large-capacity images in the wireless network, utilizes the wireless sensor network to establish a timely, on-site, low power consumption, and strong vitality wireless network monitoring system, and improves agricultural The accuracy of monitoring can shorten the early warning cycle of citrus pests and diseases.