29results about How to "Pointing accurately" patented technology

The invention discloses an unmanned aerial vehicle-based laser direction automatic adjustment method and system, and relates to the technical field of unmanned aerial vehicles, and the method comprises the steps: collecting IMU, GPS, laser radar and visible light camera data in real time, and carrying out the primary processing; fusing the processed data through a Kalman filtering algorithm, and estimating the attitude of the unmanned aerial vehicle in real time; constructing a deep learning model, and automatically identifying the contour and direction of the target object; calculating the offset distance from the central point of the image to the target object according to the contour and direction of the target object; an environment model is established, and compensation parameters of the laser emission direction are calculated; dynamically adjusting the laser direction according to the attitude estimation result, the offset distance from the central point of the image to the target object and the compensation parameter of the laser direction; the center point coordinate of the target object in the image is determined according to the contour and direction information of the target object, the laser emitting direction is adjusted in real time, and accurate pointing of the laser can be kept even if the unmanned aerial vehicle moves or the target object moves.

The invention relates to the technical field of intelligent unmanned aerial vehicles, in particular to an unmanned aerial vehicle fixed-point launching device and an operation method. The technical problems are as follows: the unmanned aerial vehicle fixed-point launching device in the prior art is insufficient in attitude pre-adjustment, inaccurate in launching control and imperfect in attitude feedback and adjustment mechanism; according to the technical scheme, the unmanned aerial vehicle fixed-point launching device comprises an unmanned aerial vehicle rack, an integrated sensor module, a signal transmission module, a support and a launching assembly; the attitude of the unmanned aerial vehicle is accurately pre-adjusted through the ground control station, it is ensured that the unmanned aerial vehicle is in the optimal stable state before being put, the opening and closing time and force of the electric telescopic rod and the electromagnetic block are dynamically adjusted according to the real-time position and attitude data of the unmanned aerial vehicle, the putting accuracy and reliability are improved, and the putting efficiency is improved. When the unmanned aerial vehicle has attitude deviation, the deviation can be corrected through attitude feedback and an adjustment mechanism, and it is ensured that the unmanned aerial vehicle can continuously fly stably and complete subsequent launching tasks.

The invention provides a compatible system and a compatible control method of a cross-time-sequence database, and relates to the technical field of data processing, and the compatible system comprises a service kernel management module which is used for receiving preset source configuration information, creating corresponding kernel service processes according to the preset source configuration information, and controlling the start and stop of the kernel service processes, the kernel service process is used for connecting a corresponding time sequence database; the proxy module is used for acquiring request information of a client; and the data source driving module is used for accessing the time sequence database through the corresponding kernel service according to the request information and receiving a query result of the time sequence database. According to the method, efficient, flexible and compatible data access of the cross-time-sequence database is achieved, a developer only needs to achieve an interface once, the system can automatically process interaction of different types of databases, the requirement for writing specific interface codes for each type of database is reduced, and therefore the development cost of an application program is reduced.

The invention discloses a control device and method for an anti-unmanned aerial vehicle jammer, and the method comprises the steps: enabling a radar system to scan a set air area, and obtaining the time period, distance and movement track of an unmanned aerial vehicle invading the air area; the spectrum analysis module is used for carrying out full-band scanning on the air radio signal and recording a spectrogram in the whole frequency band; the interference identification module identifies and separates the local highest signal intensity value in the same time period from the spectrogram as the target intensity, and the peak frequency corresponding to the local highest signal intensity value as the target frequency; the radio frequency front end adjusts the radio frequency of the directional transmitting antenna in real time according to the target frequency, and adjusts the radio frequency power of the directional transmitting antenna in real time according to the target intensity and the distance of the unmanned aerial vehicle; the omni-directional rotating device carries a directional transmitting antenna according to the motion trail to transmit interference electromagnetic signals to a dynamic directional area where the unmanned aerial vehicle is located. According to the invention, accurate interference on the unmanned aerial vehicle is realized, and the problem of space electromagnetic pollution is avoided while the airspace safety is guaranteed.

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 present invention relates to the technical field of debugging of optical mechanical sensor components, and discloses a debugging device of an optical mechanical sensor component and a method of using the same, comprising a sensor fixing plate and a base, wherein an optical mechanical sensor debugging component is arranged on the sensor fixing plate, and the optical mechanical sensor debugging component is used to control multiple angles of the optical mechanical sensor, and an optical mechanical sensor debugging auxiliary component is arranged on the base, and the optical mechanical sensor debugging auxiliary component is used to assist in completing the debugging of the optical mechanical sensor component. The debugging device of the optical mechanical sensor component, the debugging device of the optical mechanical sensor component and the method of using the same, can clamp the optical mechanical sensor component by manually rotating a corresponding knob during use, and during the process, due to the deceleration property of a first worm and a first worm wheel, the movement of the final hook-shaped clamping block can have a large torque, which is sufficient to firmly fix the optical mechanical sensor component, and the clamping process is easy and effortless.

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 mobile integrated emergency communication base station device, which relates to the technical field of communication base stations. The device comprises a mobile base station and at least four mobile wheels, wherein the four mobile wheels are fixedly connected to the bottom surface of the mobile base station in a rectangular array, a leveling component is arranged at the bottom of the mobile base station, and the leveling component comprises a bearing bottom plate, which is arranged at the bottom of the mobile base station; positioning blocks arranged by the array are squeezed by a concave-convex ground surface to slide upward in a corresponding square sleeve cavity, and the height of the upward sliding corresponds to the shape of the concave-convex ground surface, so that when the ground is broken and uneven, the mobile base station can be adaptively moved and fitted by the positioning blocks arranged by the array, and effectively support and contact with the concave-convex ground surface, so as to avoid the situation that the effective support area with the ground is insufficient when the center of gravity moves upward due to the extension of the antenna of the mobile base station when working, resulting in the mobile base station tipping over, thereby ensuring the working safety of the mobile base station.

The utility model discloses a standard tone device capable of being used for practicing and playing an erhu, which is arranged on an erhu tube and an erhu rod and comprises a fixed upper end, a metal sheet, a condition strip, a spring and a fixed lower end. The condition strip is provided with a sound column and a sound column base. According to the arrangement of the utility model, the sound post can be moved and fixed to the accurate position of each musical scale according to different erhu so as to adapt to all erhu; 2, the outer end of the sound post is accurate in pointing, and the position of each accurate musical scale is accurate; thirdly, when the erhu is pulled, the fingertips of the fingers can directly touch the outer end of the sound post, and whether the accurate sound position is pressed or not can be felt even if the user does not see the erhu, so that judgment is facilitated; fourthly, when a finger presses each sound post condition strip, the whole sound post condition strip moves towards the guitar rod, and the distance between the outer ends of other sound posts and the guitar strings is increased, so that the guitar strings are not touched; and fifthly, the device does not hinder the up-down movement of the fingers and does not affect the normal string rubbing action.

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 invention relates to a service address driven satellite grouping and beam joint scheduling method and system, and the method comprises the steps: obtaining a satellite position at a current moment, and determining a corresponding relation between a service address and a beam position according to the satellite position; acquiring a service address corresponding to a target packet to be transmitted at the current moment, and determining beam position identification information corresponding to the target packet according to the service address of the target packet and the corresponding relationship; and driving the satellite beam to irradiate the beam position corresponding to the beam position identification information, and transmitting the target packet to a target user. According to the invention, the corresponding relation between the service address and the beam position is determined in real time according to the satellite position, and the satellite beam can be accurately directed to the area with the actual service requirement. The invalid irradiation of the wave beam in a user-free area in a traditional pre-planning wave beam pointing mode is avoided, and the wave beam resource is utilized more effectively.

The present invention relates to the technical field of automobile brand improvement, and specifically discloses a method and system for determining improvement clues for automobile brands. The method comprises the following steps: constructing a user database based on automobile brand user information, receiving a clue voice package sent by an automobile end; receiving clue text information uploaded by a 4S store end; integrating the clue voice package and the clue text information to determine initial improvement clues and improvement directions for a required vehicle model and time; sending the initial improvement clues and improvement directions to the automobile end, and receiving clue confirmation results sent by the automobile end; determining final improvement clues based on the clue confirmation results, issuing preferential discounts to automobile end users and 4S store ends based on the final improvement clues, directly connecting with automobile drivers by sending invitations to the automobile end, and reducing the work of user text editing by inputting user voice packages, thereby improving the success rate of clue collection.

The utility model discloses a distribution box with an automatic fire extinguishing function, which comprises a box body and a fire extinguisher bin, the fire extinguisher bin is used for storing a fire extinguisher body, and the fire extinguisher body is connected with a fire detection tube; a vertical rod is vertically connected in the box body, a pipe cavity is formed in the vertical rod, a plurality of groups of through holes are formed in the side wall of the vertical rod, each group of through holes are communicated with the pipe cavity, a plurality of groups of rotary drums are rotatably connected to the outer side wall of the vertical rod, cavities are formed in the rotary drums, each group of through holes is located in the cavity of the corresponding rotary drum, and each group of through holes is located in the corresponding cavity of the corresponding rotary drum. The rotary joint of the rotary drum and the vertical rod is sealed, the pipe cavity is communicated with the cavity of the rotary drum through a through hole, a spray hole is formed in the side wall of the rotary drum and communicated with the cavity of the rotary drum, a nozzle opening of the fire extinguisher body is communicated with the pipe cavity of the vertical rod through a connecting pipe, and the spray hole is aligned with the position where a fire may happen. Therefore, the pointing is more accurate, and the fire can be controlled in the first time.

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 utility model discloses a pointer of an energy storage device. The pointer comprises a driving plate, a pointer part and an elastic part, one end of the driving plate is rotatably mounted on a device plate of the energy accumulator, and the device plate is located between the driving plate and the pointer component; the other end of the driving plate is elastically mounted on the device plate through the elastic piece; the surface of the driving plate is used for abutting against a driving arm of the energy storage device, and the other end of the driving plate rotates with one end of the driving plate as the center under driving of the driving arm or pulling of the elastic piece. The pointer component comprises a fixed part and a movable part; the fixing part is connected with one end of the driving plate; and the movable part can point to the position of the energy storage state on the energy storage device under the driving of the driving plate. According to the utility model, the pointer component can accurately and timely point to the corresponding energy storage state.

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.

The invention discloses a tracking device based on a low earth orbit satellite and a spread spectrum communication technology, which comprises a receiving antenna, a signal amplification circuit, a monopulse angle measurement tracking receiver and a controller, and is characterized in that the signal amplification circuit is respectively connected with the receiving antenna and the monopulse angle measurement tracking receiver; and the monopulse angle measurement tracking receiver is also connected with the controller. The method comprises the following steps: receiving a satellite signal from a low-orbit satellite through a receiving antenna; the satellite signals are amplified through the signal amplification circuit; then, a monopulse angle measurement tracking receiver calculates an angle error according to the amplitude and the phase difference of the satellite signal, and outputs a corresponding angle error signal; and finally, the controller corrects the pointing angle of the receiving antenna according to the angle error signal, so that the controller measures the satellite-to-satellite angle error of the antenna through the monopulse angle measurement tracking receiver to control the receiving antenna to accurately point to the low-orbit satellite, and the tracking precision is further improved.

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 present invention discloses a vehicle-mounted phased array moving communication antenna tracking method, comprising: after the combined inertial navigation converges, every T1 time, the azimuth angle A, the pitch angle E and the polarization angle V of the antenna beam are obtained; and the azimuth angle A, the pitch angle E and the polarization angle V are used as the target angle to control the antenna beam to point to the satellite; after the signal receiver is locked, the horizontal center point H0=A and the vertical center point V0=E are initialized to enter the tracking state; it is determined whether the satellite signal is in an obstruction state, if not, the scanning tracking mode is entered; if so, it is determined whether the satellite signal is completely obstructed and the obstruction time is greater than the signal strength threshold; if not, the scanning tracking mode is entered; if so, the scanning satellite mode is entered. Through the vehicle-mounted phased array moving communication antenna tracking method disclosed by the present invention, stable and reliable satellite communication can be achieved.

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.

The invention relates to the technical field of beam forming, in particular to a beam forming device and method.The beam forming device comprises a base, a mounting hole is formed in the side face of the base, a rotating assembly is arranged at the top of the base and comprises an upper cover located at the top of the base, a positioning column and a limiting frame are arranged at the bottom of the upper cover, and an abutting groove is formed in the side face of the limiting frame; a rotating groove is formed in the center of the upper cover, a rotating piece is rotationally connected into the rotating groove, a connecting piece is fixedly connected to the bottom of the rotating piece, an antenna element is arranged at the top of the rotating piece, and a second rotating base and a third rotating base are fixedly connected to the bottom of the antenna element; by arranging the base, the rotating assembly, the fixed assembly and the like, a base structure of the antenna assembly convenient to disassemble and assemble is formed, so that the antenna assembly can find a proper direction and a proper elevation angle, the strength and the stability of signals are ensured, better receiving experience is provided, and the stable proceeding of a signal receiving process is further ensured.