51results about How to "Meet the requirements of real-time monitoring" patented technology

The invention provides a method for estimating a state of dynamic process of a power system. The method takes an estimated result of the static state before the electric grid disturbance as a basic section and introduces a load model and a motor model to perform the equivalent treatment to the electric grid; in the process of the electric grid disturbance, a synchronous phasor measuring unit(PMU)is used to measure and obtain data of a motor, and according to the active power and the reactive power zero injection pseudo-measurement equations of all nodes of the original electric grid, states ofall nodes of the electric grid are estimated, and the state of dynamic process of the electric grid is acquired only by the PMU measurement of a power plant. Because the state of the electric grid be fore disturbance is taken as a basis and only the PMU distribution of the power plant is required, the method effectively resolves the problem of state monitoring under the condition of the electricgrid disturbance; on the same disturbance, for continuous PMU measurement sections, PMU measurement data can be directly put in iterative computations, thereby the continuous sections in the process of electric grid disturbance are provided for stable control and analysis; moreover, the method is fast in speed, so that the method meets the requirement for monitoring the dynamic process in real time.

The invention provides a remote network behavior real time monitoring method based on multilayer data interception. A plurality of monitor devices are connected with a security center, the design framework of the monitoring system is implemented based on B / S model distributed network behavior, and the network behavior real time monitoring is divided into two parts: the monitor devices analyze themessages in real time, and the messages in conformity with the monitoring strategy are reported to the security center; the security center issues the monitoring strategy to the monitor devices, the messages are analyzed and a search engine is provided, a user is connected with the security center by a terminal, and the user configures the monitoring strategy and queries the network behaviour to realize monitoring the remote network behavior in real time. The application of remote network behavior real time monitoring technology based on multilayer data interception can effectively manage theinformation security of the remote network, thus realizing information security uniform management and secondary mining and analyzing of data and improving the information security of the whole network.

The invention discloses an urban traffic signal control method and device. The method includes: estimating the average vehicle speed of the urban road section according to the obtained traffic density parameters of the vehicles in the urban road section; counting the average vehicle speed of all road sections in the city, estimating the average vehicle speed of the city; according to the average vehicle speed of the city and The average speed of vehicles in each direction at the road intersection, and adjust the green signal ratio and / or switching period of the signal light at the road intersection. It can accurately and real-time estimate the average speed of road sections and urban vehicles, realize reasonable control and optimization of traffic signals, increase the speed of vehicles, and reduce the incidence of urban road congestion.

The invention belongs to the filed of dynamic object three-dimensional measurement and particularly relates to a corresponding point searching method based on phase shift and trifocal tensor. The method includes: using parallax constraints to remove error match points, optimizing grating boundary points, checking mixed consistency, using epipolar constraints to further improve corresponding point precision, and accordingly full-time-resolution and full-spatial-resolution three-dimensional measuring of dynamic objects is achieved. By the method, phase unwrapping is unnecessary during three-dimensional reconstruction, corresponding points of source match points are obtained by using trifocal tensor constraints directly, and surface discontinuity of an to-be-measured object needs not to be considered. In the mean time, data processing speed is increased due to the fact that the phase unwrapping is unnecessary, and real-time monitoring requirements of deformable objects are satisfied. The method is applicable to measuring of dynamic objects of optional shapes without using extra images to determine the corresponding points.

The invention relates to a radial basis function neural network adaptive enhancer circuit based on FPGA design, and its technical characteristics are: connected by a signal conversion circuit, a radial basis function circuit, a signal adjustment circuit, an LMS filter circuit and an output adjustment circuit The input end of the signal conversion circuit is connected with the original signal, the output end is connected with the input end of the signal adjustment circuit and the radial basis function circuit, and the output end of the radial basis function circuit is connected with the other input end of the signal adjustment circuit The two output signals of the signal adjustment circuit are respectively connected to the LMS filter circuit, the input terminals of the output adjustment circuit are respectively connected to the output terminals of the LMS filter circuit, the adjustment signal m and the adjustment signal n and output the noise-removed Signal. The invention has a reasonable design, improves the performance of the conventional LMS filter, realizes the fast calculation function, ensures the stable and reliable performance, and can meet the requirement of real-time monitoring of the somatosensory evoked potential.

The invention relates to a method for performing seismograph control and data transmission by using a short message and a short message control and transmission type cableless seismograph. Aiming at solving the problem of no real-time quality control to the prior cableless seismograph, the method for seismograph control and data transmission introduces a mobile phone unit into an acquisition station for the prior cableless seismograph, and utilizes the short message to conduct state control and data transmission to the acquisition station for the cable-less seismograph. The acquisition station for the cableless seismograph comprises a main control unit, an acquisition unit, a storage unit, a GPS unit, a power management control unit and a mobile phone unit. The invention has the advantages that the work load of measurement can be reduced, the laying of the acquisition equipment is more flexible, simpler and more convenient, the synchronous collection mode for blasting at the fixed time is convenient, the construction efficiency is favorable for improving, the data recovery is flexible, an SPS file can be automatically generated, the coordinate with cm-level accuracy can be automatically calculated, the difficult problem of no real-time quality control to the cableless seismograph is solved in a simple and inexpensive way, and the application range and the construction efficiency of the cableless seismograph are greatly improved.