6results about How to "Strong tracking ability" patented technology

The invention relates to the field of intelligent monitoring, and discloses a machine room wild animal intelligent defense system based on a millimeter wave radar, which comprises a signal capture module, a signal processing module, a feature extraction module, a classification tracking module and an alarm linkage module, the signal capturing module collects target reflection signals through a millimeter wave radar, the signal processing module carries out multi-target separation and interference suppression on the signals, the feature extraction module extracts time-frequency characteristics and motion track characteristics of targets, and the classification tracking module classifies the targets and tracks the motion states of the targets in real time. And the alarm linkage module evaluates the threat level according to the classification result and triggers corresponding defense measures. The system can accurately identify and track targets, timely respond and execute defense actions, has the advantages of high precision, multi-target monitoring, real-time dynamic tracking, intelligent defense and the like, and can effectively guarantee safe operation of machine room equipment.

The invention relates to the technical field of park intelligent management, and discloses a park intelligent video monitoring system and method based on deep learning, and the system comprises a data collection module and an intelligent management module. According to the park intelligent video monitoring system and method based on deep learning, a data collection module collects a data set, an intelligent management module establishes a two-dimensional coordinate system and marks a coordinate point corresponding to each monitoring device, whenever a strange person or a strange vehicle enters and exits from a park, whether the strange person or the strange vehicle continuously appears in a monitoring video of the monitoring device is judged, and the strange person or the strange vehicle enters and exits from the park. When an abnormal signal is generated, the intelligent management module analyzes and generates a delay time difference, then judges whether there is a strange person or a strange vehicle in a patrol video of the unmanned aerial vehicle equipment, identifies appearance characteristics and behavior characteristics through a deep learning model, is high in intelligent monitoring safety, and when an early warning signal is generated, the intelligent management module analyzes and generates a tracking mileage. And the unmanned aerial vehicle equipment with the shortest tracking mileage is screened for tracking, so that the efficient tracking capability is high.

The invention provides an urban road atmospheric pollution management and control system and method based on data monitoring. The urban road atmospheric pollution management and control system comprises a road monitoring micro station, a control analysis room, a scheduling client and a municipal cleaning system. The road monitoring small micro station monitors air quality data and meteorological data of a road where the road monitoring small micro station is located in real time, when the environment air quality data is high, the municipal cleaning system is started, the road where the road monitoring small micro station is located is purified and cleaned, relevant information is fed back to the analysis control room, and workers can check feedback information through the dispatching client side. The urban road atmospheric pollution management and control system and method based on data monitoring have the advantages of being high in target performance, high in traceability and the like, the urban road atmospheric environment pollution condition can be rapidly found in real time, the urban road pollution area condition can be mastered in time, the road pollution traceability and management and control effect is improved, and the urban road atmospheric pollution management and control system and method are suitable for popularization and application. And the road with high pollution degree can be effectively treated in time.

This invention discloses an indoor target localization and trajectory tracking method and system based on millimeter-wave radar. The method includes: acquiring the frequency-modulated continuous wave emitted by the millimeter-wave radar towards the target area and receiving the echo signal; demodulating and transcoding the echo signal; performing preliminary noise reduction on the demodulated and transcoded data; segmenting and extracting the data after preliminary noise reduction to obtain a dataset; filtering environmental noise from the dataset to obtain a first-optimized dataset; clustering the first-optimized dataset to filter out noise generated by the target during movement, obtaining a second-optimized dataset; and using a constant false alarm rate (CFAR) detection algorithm on the second-optimized dataset, using peak points in the clustering results to replace the entire clustering interval to complete target localization.

The invention discloses a combustion gas turbine active-disturbance-rejection rotating speed control method and system based on a sliding-mode observer, and relates to the technical field of combustion gas turbines.The method comprises the steps that an operation state equation of a combustion gas turbine is established with fuel oil flow as the input quantity and the rotating speed of a power turbine of the combustion gas turbine as the state quantity; an estimated value of uncertain disturbance is obtained through a self-adaptive high-order sliding mode observer, a power turbine rotating speed controller is designed based on an active-disturbance-rejection control theory, the set rotating speed of a gas turbine serves as a control target value, and robust control over the rotating speed is achieved by compensating a disturbance value estimated by the observer in real time. Therefore, the controller can still keep better control precision under the condition that the system parameters suddenly change. The gas turbine power turbine rotating speed control method has high robustness on gas turbine modeling errors and external interference, and the tracking performance and the active disturbance rejection capacity of a system can be obviously improved.

A three-axis antenna for a carrying tool comprises a mounting bottom shell, a supporting frame is rotationally arranged on the mounting bottom shell and is obliquely arranged, a first driving assembly is arranged between the supporting frame and the mounting bottom shell, and the top end of the supporting frame is rotationally connected with a [-shaped frame; a second driving assembly is arranged between the middle of the n-shaped frame and the supporting frame, a rotating plate is rotationally arranged between two side plates of the n-shaped frame, a third driving assembly is arranged between the rotating plate and the n-shaped frame, and a signal receiver is rotationally arranged on the rotating plate; a fourth driving assembly is arranged between the signal receiver and the rotating plate; through rotation of the mounting rack, rotation of the [-shaped frame and rotation of the rotating plate, the signal receiver can freely adjust the orientation of the central axis of the signal receiver to point to a satellite at any position in the sky, and the three-axis adjustment mode is high in adjustment speed and high in tracking capability.