15results 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.

The utility model belongs to the technical field of protection devices, and particularly relates to a temperature detection device for live equipment, which comprises a detection host, a temperature detection assembly is arranged at the bottom of the detection host, a detection needle is arranged at the detection end of the temperature detection assembly, and a connecting disc is fixedly connected to the outer side of the top of the detection needle. First clamping grooves are formed in the two sides of the connecting disc, a fixing assembly is arranged on the outer side of the connecting disc, second bolts which are evenly distributed are arranged at the fixing end of the fixing assembly, and clamping pieces are arranged on the inner sides of the second bolts; according to the live equipment temperature detection device provided by the utility model, the second clamping groove and the first clamping groove are clamped at the same time through the clamping piece, so that the connecting disc and the connecting ring are fixedly connected, the detection host and the temperature detection assembly are rapidly detached from the fixing assembly by rapidly detaching the connecting piece, no extra tool is needed, and the cost is reduced. Installation and detachment are quicker and more convenient, operation efficiency is greatly improved, and downtime is shortened.

The utility model belongs to the technical field of calibration, and discloses a calibration device for a magnetic compass, which comprises a calibration mechanism comprising a rotating platform for driving the magnetic compass to rotate horizontally, a magnet assembly, and four groups of upright guide rails which are respectively positioned on the periphery of the rotating platform, a magnet block capable of sliding along the vertical direction of the vertical guide rail is arranged on the vertical guide rail; compared with the prior art, the magnetic compass has the following beneficial effects that through the design of the magnet assembly, when the magnetic compass rotates on the rotating platform, the height is adjusted by enabling the peripheral magnet blocks to slide up and down along the vertical guide rail, so that the height of the magnetic compass can be adjusted according to the autodyne condition when the magnetic compass rotates to different directions on the rotating platform; and the magnetic field action intensity between the magnet block and the magnetic compass is adjusted. Therefore, the autodyne of the magnetic compass can be corrected in a targeted manner, the calibration precision is improved, the operation of the sliding adjustment mode is more convenient, the time and labor cost required by calibration are reduced, and the working efficiency is improved.

The invention discloses a perimeter device and a view detection method, and relates to the technical field of medical detection.The perimeter device comprises a shell, a light source, a digital micromirror device, an imaging unit, an image acquisition unit and a controller; the digital micro-mirror device is arranged in the shell and is used for receiving light emitted by the light source and then generating an optical stimulation pattern; the imaging unit is installed in the shell and used for projecting the optical stimulation pattern to the eye fundus of the human eye for imaging; the image acquisition unit is mounted in the shell and is used for acquiring image data of human eyes; the controller is electrically connected with the image sensor and the digital micro-mirror device and used for calculating the rotation angle of the eyeball according to the image data of the human eyes and adjusting the position, where the optical stimulation graph is generated, on the digital micro-mirror device according to the rotation angle of the eyeball. And the image of the optical stimulation pattern projected to the eye fundus of the human eye through the imaging unit moves along with the eyeball.

The invention relates to the technical field of underwater long-distance communication, and particularly discloses an underwater wireless high-speed optical communication system, which comprises a transmitting end, a receiving end and a control unit, the transmitting end is used for generating a light beam, performing collimation and beam expansion processing on the light beam, adjusting the deflection angle of the light beam, and transmitting the light beam through an underwater channel; the receiving end is used for receiving a light beam from an underwater channel, filtering stray light and splitting the light beam into two paths: one path is used for demodulating communication data, and the other path is used for detecting the position of a light spot; the control unit is used for calculating the light spot offset according to the detected light spot position information and generating a correction instruction to adjust the deflection of the emitted light beam so as to correct the light beam direction; according to the invention, the direction of the light beam is corrected by detecting the position of the underwater light spot and feeding back and adjusting the deflection angle of the transmitting end.

The utility model is suitable for the technical field of microphone detection, and provides a directional microphone rapid test device, which comprises a mounting seat and a test tube arranged on the mounting seat, one end of the test tube is provided with a sound source module, and the test tube is provided with a detection port; the execution mechanism comprises a rotating arm and a rotating stand column, the rotating stand column is fixedly installed on the installation base, the rotating arm is arranged on the rotating stand column, and the rotating stand column is further provided with a multifunctional clamping assembly used for clamping a microphone and driving the microphone to rotate; the number of the executing mechanisms is two. According to the utility model, the two groups of symmetrically arranged actuating mechanisms are matched with the test tube, so that the microphone modules to be detected can be quickly switched, the batch quick 100% detection is realized, and the problems that the single detection efficiency is low and the whole detection cannot be met in the traditional sampling detection mode are solved.

The utility model discloses an antenna installation technical field's a kind of radio frequency antenna installation integrated seat, including upper installation shell and with the lower installation shell of four bolts installation of upper installation shell, the upper installation shell top is integrally equipped with limit frame, the lower installation shell bottom is integrally equipped with mounting bracket, the limit frame inboard is installed with RTK antenna by fixed part, the mounting bracket inboard is installed with stick antenna by mounting part, the upper installation shell top and close to one side are equipped with wire slot, the stick antenna is connected between RTK antenna by SMA connector, and the upper installation shell and the lower installation shell are fixed on two sides arm by four bolts, arm is far from fuselage, avoid unnecessary electronic equipment interference, RTK antenna distance is far, without any shelter, guarantee the search star quality and pointing accuracy, the radio frequency antenna of stick antenna is the smallest sheltered area, RTK antenna and radio frequency antenna same set of fixed structure, light in weight, simple structure.

The invention belongs to the technical field of fault identification and dynamic monitoring, and provides a digital twin-driven liquid cooling system fault diagnosis method and system, and the method specifically comprises the steps: firstly, recognizing each node from a liquid cooling system, presetting monitoring features, collecting the monitoring features at the nodes, obtaining a header pipe state vector and a node state vector, and carrying out the fault diagnosis of the liquid cooling system; and then an oscillation event is identified through a header pipe state vector, finally, an efficiency tearing feedback value of each node is calculated through a node state vector in the oscillation event, and a liquid cooling system fault diagnosis result is returned according to the efficiency tearing feedback values. In the liquid cooling system of a large-scale parallel framework or a micro-channel array, the regular evolution direction of thermal dead pointing or wear-through pointing of each node in the efficiency tearing problem fault of the whole liquid cooling system is quantified, the efficiency of different identification is improved, accurate pointing is provided for the fault position, and the labor cost and the time cost of operation and maintenance are remarkably reduced.

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.

The utility model discloses a shallow sea magnetotelluric acquisition station capable of automatically correcting orientation, which belongs to the field of marine geological detection instruments and comprises a rectangular shell, an orientation detection unit and an automatic correction unit are arranged in the rectangular shell, and a data acquisition unit is arranged at the top of the rectangular shell; the azimuth detection unit comprises an inertial measurement unit, the automatic correction unit comprises a control chip, a driving circuit and a waterproof steering engine gear arranged at the top of a rectangular shell, and the data acquisition unit comprises an electromagnetic field sensor and an electric field sensor; the inertia measurement unit transmits collected attitude signals to the control chip, the control chip transmits generated control signals to the drive circuit, the drive circuit drives the waterproof steering engine gear to rotate, and the electromagnetic field sensor and the electric field sensor are fixedly arranged at the top of the waterproof steering engine gear and rotate along with rotation of the waterproof steering engine gear. The orientation of the electric field and magnetic field sensor can be automatically adjusted according to the detection attitude.

The invention provides a limestone aquifer dominant runoff channel testing device and a testing method. The testing device comprises an inner steel pipe frame capable of being connected with a drill rod or a drill bit in a matched mode, end steel plates fixed to the two ends of the circumferential face of the inner steel pipe frame, a supporting steel plate fixed between the two end steel plates, a bag arranged on the periphery of the inner steel pipe frame in a sleeving mode and a water injection hose communicated with the interior of the bag. The two length ends of the supporting steel plate are fixed to the end steel plate, and the projection of the supporting steel plate on the end steel plate does not exceed the boundary of the end steel plate. When the testing method is used for testing the development direction of the karst fissure, the supporting steel plate is rotated, and the amount of water flowing out of a drilling hole opening is recorded; the direction of the center line of the supporting steel plate at the position with the maximum water volume can represent the most advantageous runoff channel direction; the testing device is practical in function and easy to manufacture and use; according to the method, the dominant channel direction can be visually obtained by rotating the supporting steel plate and dynamically monitoring the water yield.

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.

The utility model relates to a portable stem cell injection device. Including intermediate saddle, one end pivotal connection has clamping plate seat no.

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.