5results about How to "Pointing accurately" patented technology

This invention discloses a multi-target adaptive jamming system based on an array antenna, belonging to the field of electromagnetic countermeasures and signal processing technology. The system includes an array antenna unit, a multi-channel RF front-end, a signal processing and control unit, and an environmental sensing unit. The array antenna scans the airspace and captures signals from multiple targets; the signal processing and control unit runs various algorithms to estimate the azimuth, frequency, and power parameters of multiple targets; an interference suppression matrix is ​​constructed based on singular value decomposition, generating multiple low-sidelobe focused jamming beams aimed at each target; the environmental sensing unit monitors background noise intensity in real time and dynamically adjusts the transmission power through a noise adaptive power control algorithm. This invention overcomes the shortcomings of traditional jamming techniques, such as energy dispersion, poor environmental adaptability, and unintelligent resource allocation. It can simultaneously achieve efficient and precise jamming of multiple targets, significantly improving the suppression ratio of a single target, and maintaining high jamming efficiency and resource utilization even in high-noise environments.

This invention relates to a six-degree-of-freedom (6DOF) measurement system and method. The 6DOF measurement system includes a camera, a prism, and a target; the optical axis of the prism is coaxial with the line of sight of the camera; the target is mounted on the target and positioned within the combined field of view of the camera and prism; the target includes a mounting base and a main shaft mounted on the mounting base, with a fixing plate on the main shaft; an annular sleeve is fixedly connected to the fixing plate, and a motor is mounted outside the annular sleeve; the main shaft of the motor passes through the annular sleeve and is connected to a transmission component, which has rollers connected to a slider. Driven by the motor, the slider can slide radially from the center to the edge of the annular sleeve via the rollers; a main marker is mounted on the top of the main shaft, and an auxiliary marker is mounted on the top of the slider. Compared with the prior art, this invention can achieve six-degree-of-freedom pose measurement of a target under uncalibrated conditions, improving the adaptability of the measurement system.

This invention discloses a pollution source tracing method that couples water system topological constraints with multi-source tracing technology. This invention relates to the field of environmental monitoring and water pollution control technology, and includes the following steps: constructing a digital water system topology network for a watershed: based on digital elevation model data of the target watershed, after hydrological preprocessing, flow direction calculation, runoff accumulation analysis, and river network extraction, the natural river network is abstracted into a topological network graph composed of nodes and directed edges. A reachability matrix is ​​generated based on the directed edge connection relationships. The advantages of this invention are: by fusing four complementary chemical fingerprints—stable isotopes, biomarkers, three-dimensional fluorescence spectroscopy, and conventional water quality physicochemical parameters—a high-dimensional feature space is constructed. Cross-validation is performed using the distinguishing advantages of different fingerprints in different dimensions, effectively overcoming the source type confusion problem caused by insufficient dimensions of a single indicator, and significantly improving the specificity and accuracy of source identification.

The utility model discloses an integration heaven pool, including heaven pool shell, meridian, middle axle, magnetic pointer, magnetic block and transparent top cover, the heaven pool shell integratedly, the meridian integratedly formed is arranged in the inner bottom surface of heaven pool casing, the middle axle verticality is arranged in the surface of the bottom of heaven pool shell, and the bottom of middle axle is arranged in the midpoint position of meridian, the top rotation of middle axle is equipped with copper cap, the magnetic pointer includes swivel, needle head and needle tail, the swivel is arranged in the outside of copper cap, needle head and needle tail are integrally arranged in both ends of swivel respectively, the magnetic block is arranged in the bottom of swivel, and the magnetic block is around in the periphery of middle axle, the transparent top cover is sealed in the top of heaven pool shell, the utility model discloses long service life, and the use effect is good.

This invention discloses an intelligent temperature-sensing explosion-proof unmanned aerial vehicle (UAV) for tunnels, relating to the field of UAV technology. It includes a fuselage, wings, and a detection system. A mounting frame for the detection system is installed on the fuselage. A drive wheel is rotatably mounted on the mounting frame and connected to a first drive mechanism. A rotating frame is rotatably mounted on the drive frame, with one end connected to a second drive mechanism and the other end housing the detection unit. Through the cooperation of the first and second drive mechanisms, the detection unit can achieve full-angle rotation in the horizontal direction and adjustment of the pitch angle in the vertical direction, significantly improving the detection field of view. The detection unit is equipped with a cleaning mechanism that utilizes the Venturi effect to adsorb dust and has a self-cleaning function. The wings automatically fold and unfold via a planetary gear set and a locking mechanism. This invention has a compact structure, flexible and reliable detection capabilities, and is suitable for complex environments such as tunnels.