68results about How to "Improve capture success rate" patented technology

The invention discloses a non-cooperative target satellite acquisition device and an acquisition method, and belongs to the technical field of aerospace. The non-cooperative target satellite acquisition device includes an outer shell, two four-link capturing pawl mechanisms, four horizontal locking mechanisms, a screw rod and a controller; the two four-link capturing pawl mechanisms are arranged in the outer shell face to face, and the lower parts thereof are fixedly connected with an installing bottom plate; the lower end of the screw rod crosses through the installing bottom plate, and the lower end thereof is connected with a driving mechanism; four horizontal locking mechanisms are respectively located at outside of the two four-link capturing pawl mechanisms, and every two horizontal locking mechanisms are installed on the upper part of the outer shell; both sides of the upper part of the four-link capturing pawl mechanisms are respectively equipped with pressure lever mechanisms; when the four-link capturing pawl mechanisms are descended, the pressure lever mechanisms compress the horizontal locking mechanism to horizontally glide towards inside; the top part of the outer shell is equipped with a photoelectric sensor, and the photoelectric sensor and the driving mechanism are electrically connected with the controller. The non-cooperative target satellite acquisition device is widely applied to the acquisition of various space crafts, and the non-cooperative target satellite acquisition device is wide in application range, big in tolerance, quick in response speed, high in reliability, and others.

The invention provides a cell searching device, comprising an AFC (Automatic Frequency Control) and CP (Content Provider) judging device, a first FIFO (First In First Out) memory, a main synchronizing signal cross-correlator, a main synchronizing signal capturing state machine, an auxiliary synchronizing signal decoder, a Cell ID decoder and a PBCH (Physical Broadcasting Channel) decoder, whereinthe AFC and CP judging device is used for carrying out automatic frequency adjustment and CP length judgment on a received baseband digital signal, and the processed baseband digital signal is transmitted to the main synchronizing signal cross-correlator and simultaneously stored to the first FIFO memory; the main synchronizing signal cross-correlator is used for carrying out cross-correlation operation on the received baseband digital signal and a main synchronizing signal generated locally; the main synchronizing signal capturing state machine is used for capturing the main synchronizing signal and obtaining a Cell ID2 from the main synchronizing signal when the capturing is successful; the auxiliary synchronizing signal decoder decodes an auxiliary synchronizing signal to obtain a CellID1; the Cell ID decoder is used for figuring out a Cell ID according to the Cell ID2 and the Cell ID1; and the PBCH decoder is used for demodulating a PBCH by utilizing the Cell ID and analyzing system information containing a bandwidth and a system frame number.

The terminal device includes object lens, universal joints, motor drive and angular displacement sensor, part for switching channels, star capture channel and part, satellite laser communication channel and module, interfaces between each module and CPU, CPU, and interface between CPU and satellite platform. CPU controls switching part in adjustment channel so that light signal received by system can be transferred to star capture channel to capture stars, or to satellite laser communication channel, where relevant modules are cooperated to carry out satellite laser communication. Syncretizing function of star sensor, the system can accomplish capture procedure between communication terminal devices without need of scanning.

The invention discloses a method and a device for synchronously capturing pseudo codes in real time and mainly aims to solve the problem that real-time capture of long-period pseudo codes is difficult in the prior art. The method comprises the following steps: first, a synchronous head is spectrum-spread by adoption of a first pseudo code and a second pseudo code to generate a synchronization sequence, and the synchronization sequence is transmitted; second, a receiving end de-spreads a received signal to obtain segment correlation values and stores the segment correlation values; third, the segment correlation values are sequentially extracted and multiplied by the second pseudo code to obtain part of a correlation value sequence; fourth, modulo operation is performed on the sequence after FFT operation, the peak of the module value is selected and compared with a set threshold, the second pseudo code is successfully captured if the peak is greater than or equal to the threshold, or the method returns to the second step until the second pseudo code is synchronously captured; and fifth, the first half of a superposition value and the second half of the superposition value of the part of correlation value sequence are compared, synchronous capture succeeds if the two are approximately equal, or synchronous capture fails. The method and the device of the invention has the advantages of being capable of capturing long-period pseudo codes in real time, and can be used for real-time synchronous capture in burst communication.

The invention is suitable for the technical field of multimedia equipment and provides an audience life image shooting method, an audience life image shooting device and multimedia equipment. The method comprises the steps that when the multimedia equipment is used for playing a program, the facial expression of a user who watches the playing program is monitored in real time; whether the facial expression of the user accords with a preset trigger condition is judged; if so, an image comprising the facial expression of the user is shot according to a preset shooting format. According to the method, whether the facial expression of the user accords with the preset trigger condition is judged, if so, the image comprising the facial expression of the user is shot according to the preset shooting format, the problem that the facial expression of the user is difficult to snapshoot during the program watching period, so the family happiness moment is difficult to record is thus solved, and the snapshot successful rate is improved.

The invention discloses a coordination control method for a mechanical arm and an operation platform in the final stage of grabbing. The coordination control method comprises the steps that before the final stage of grabbing, effective data of the last frame of the portion which can be grabbed of an object are obtained through a hand-eye camera at the tail end of the mechanical arm by means of measurement, and under the condition of a posture configuration A of the current operation platform, an expected grabbing posture of the tail end of the mechanical arm under a base coordinate system of the mechanical arm is determined; during the final stage of grabbing, according to operation platform posture information measured by a top on the current operation platform, the variation amount, relative to the configuration A, of a posture configuration B of a new operation platform is calculated, and an expected posture of the tail end of the mechanical arm under the condition of the posture configuration B of the new operation platform is worked out by combining the measurement data of the last frame; and finally the corrective control amount of all joints of the mechanical arm is obtained through the computation of inverse-kinematics, and the mechanical arm is driven to grab the expected object. By means of the coordination control method for the mechanical arm and the operation platform in the final stage of grabbing, it is guaranteed that the pointing posture and position of the platform remain the same in the movement process of the mechanical arm.

The invention discloses a light mechanical collision type space debris capturing web claw. The light mechanical collision type space debris capturing web claw comprises a bottom plate and a pluralityof web claw teeth, wherein the plurality of web claw teeth are mounted on the bottom plate; toothed claw switch module for driving the web claw teeth to be closed when the web claw teeth have collisions with a space debris is also mounted on the bottom plate; the web claw teeth consist of claw teeth with spokes on the two sides; and when the web claw teeth are closed, the plurality of web claw teeth and the spokes on the two sides of the plurality of web claw teeth form a semi-closed capturing envelope to prevent a capturing target from escaping. According to the light mechanical collision type space debris capturing web claw, at the moment of approaching the space debris in the capturing process, the capturing envelope is formed by triggering the switch through triggering a collision triggering switch of the bottom plate and releasing a torsion spring to drive the closed claw teeth; and therefore, the motion of a non-cooperative target is restricted and limited to finally realize thecapturing.

The invention provides a thrombectomy instrument and a thrombectomy device, and relates to the technical field of medical instruments. The thrombectomy instrument comprises a far-end fixing end, a first near-end fixing end, a second near-end fixing end and a thrombus extraction bracket; the thrombus extraction bracket includes an inner bracket body and an outer bracket body which are connected at the far-end fixing end; the near end of the outer bracket body is connected with the first near-end fixing end, the near end of the inner bracket body is connected with the fixing end of the second near-end fixing end, and the second near-end fixing end is connected with the first near-end fixing end in a sliding mode so that the inner bracket can move relative to the outer bracket body; the thrombectomy device includes a pre-installation sheath, a delivery catheter, an operation controlling rod and the thrombectomy instrument; the operation controlling rod and the thrombectomy instrument are connected, and the installed thrombectomy instrument and the operation controlling rod enter the delivery catheter through the pre-installation sheath, sent to the position of thrombus through the delivery catheter and then released. The problems that an existing thrombectomy instrument can not hold the thrombus in the thrombus extraction process and the thrombus can not be extracted and the thrombus is easy to fall off to cause secondary embolisms when the thrombectomy device is used for thrombus extraction are alleviated.

A spinning machine comprises the components as follows: a spinning device (3), which twists a fibre bundle (F) to prepare a spun yarn (Y); a winding device (6), which winds the spun yarn (Y) to prepare a package (P); a first capture portion (23a), wherein when the spun yarn (Y) becomes discontinuous, the first capture portion captures the spun yarn at the side of the spinning device (3); and a control device (40), wherein when the first capture portion (23a) fails to capture the spun yarn (Y), the control device controls the first capture portion (23a) to enable the first capture portion (23a) to continue the capture action.

The invention discloses a vehicle-mounted aggregation safety alarm system, and relates to the technical field of the public security. The system comprises a cloud server, a camera, a wireless communication module, a face recognition device, an active alarm device and a controller; the camera is used for capturing a face picture or shooting a video stream; the face recognition device is used for extracting face image characteristics in the captured face picture or the shot video stream; the wireless communication module is used for sending the captured face picture or the shot video stream or the face image characteristics; the cloud server is connected with an escaped prisoner database of a public security system and a public security platform; the cloud server is used for comparing the face image characteristic with the escaped prisoner database and identifying the same; the active alarm device is used for performing active alarming by a driver end when a dangerous event occurs. The escaped prisoner in the vehicle can be precisely identified by adopting the above technical scheme, the law enforcement efficiency of the public security personnel can be improved, thereby ensuring thesecurity of the passenger in the vehicle.

The invention provides an equal-elevation-angle searching method for a narrow-beam radar to capture a space target, which adopts basic methods of celestial mechanics and celestial body metrology, in particular to a new method for guiding the narrow-beam radar to find and capture the target based on precise orbit parameters of the space target, and is an equal-elevation search method. The method can overcome the difficulty that the radar narrow beam is difficult to capture the target due to the fact that the prediction trace error diffusion is fast in the traditional point location prediction search method, remarkably improves the capture success rate of the narrow beam radar to the space target, and is an effective technical means for improving the radar application benefit.

The invention discloses a disease and pest control box for forestry. The pest and disease control box comprises a box body with an opening in the top, wherein two arc-shaped covers are rotationally installed on the inner walls of the two sides of the box body, a lifting table capable of moving up and down is arranged in the box body, a pest trapping assembly is arranged on the top of the lifting table, an infrared sensor is installed on the inner rear wall of the box body, when the infrared sensor senses that mosquitoes enter the box body, the lifting table is controlled to move downwards through an electric signal, the lifting table is driven to move upwards again after a specified time is maintained, the pest and disease control box further comprises a transmission assembly which is used for driving the two arc-shaped covers to rotate to be closed or opened, and when the lifting table moves downwards, the two arc-shaped covers are driven to rotate to be closed through the transmission assembly. Through cooperation of structures, the two arc-shaped covers are enabled to rotate to be closed through the transmission assembly while pests are attracted, the effects of trapping and actively catching pests can be achieved, and therefore, the trapping efficiency of diseases and pests is improved.

The invention discloses a failure satellite capturing and docking device which adopts a lasso capturing mechanism to capture a target satellite, then drives the captured target satellite to approach a task satellite, and realizes docking between the task satellite and the target satellite through a buffer docking locking mechanism. In addition, a controller is additionally arranged in the failure satellite capturing and docking device, and the capturing and docking process is intelligently controlled. The device integrates capturing, docking, locking and releasing, has the advantages of being large in capturing tolerance, high in capturing success rate and firm in docking, can reduce the attitude deviation between two satellites in the approaching process of the two satellites after capturing, improves the docking accuracy, can repeatedly implement multiple capturing tasks, and is high in practicability. The invention further discloses a failure satellite capturing and docking method based on the failure satellite capturing and docking device.

The invention relates to a control method of a capture recovery device of an unmanned aerial vehicle. The applicable device comprises three parts of a lead plane, a wing plane and a capture net, wherein the lead plane is provided with a main controller, an annular placement frame is fixed on the periphery of the lead plane, a plurality of ultrasonic ranging sensors are arranged on the periphery ofthe annular placement frame, and ranging signals from all the ultrasonic ranging sensors are transmitted to the main controller; and the lead plane is connected with the wing plane through a cable, amotor used for dragging the capture net to be unfolded is fixed on the wing plane, and the main controller is used for obtaining the position information of the unmanned aerial vehicle to be capturedaccording to the ranging signals from all the ultrasonic ranging sensors, and the target unmanned aerial vehicle is captured and controlled by controlling a propeller motor and the wing plane. The control method has the advantages that the capture precision is high, the capture success rate is high, and the captured unmanned aerial vehicle can be brought back to the ground without damaging the unmanned aerial vehicle after being captured.

The invention discloses a double-layer embolectomy device which comprises an inner-layer net, an outer-layer net and a blocking net structure. The inner-layer net comprises a near-end and a far-end. The head end of the outer-layer net is connected with the near end of the inner-layer net; the grid unit density of the inner-layer net is greater than that of the outer-layer net; one end of the blocking net structure is connected with the tail end of the outer-layer net, and the other end of the blocking net structure is folded and connected with the far-end of the inner-layer net; and the blocking net structure is connected with the outer-layer net to form a network structure wrapping the inner-layer net. When the double-layer embolectomy device is used, the density degree of the blocking net structure can be determined according to the hardness degree of actual thrombus, the proper blocking net structure is selected, and therefore the thrombus capturing success rate is effectively increased, and the phenomenon that part of thrombus is broken, falls off and escapes is prevented; through special grid arrangement of the inner-layer net and the outer-layer net, the compliance and the supporting force of the double-layer embolectomy device are effectively balanced, the damage to blood vessels is reduced, and the thrombus capture capacity is further improved.

The invention discloses a buoy catching device with clamping and magnetic attraction fixing functions and a method. The buoy catching device comprises a clamping mechanism and a magnetic attraction mechanism; the clamping mechanism comprises a clamping arm, a turnover small arm, a rotary oil cylinder and a turnover oil cylinder; the rotary oil cylinder is fixed to an outer plate of a ship body, one end of the clamping arm is connected with the rotary oil cylinder, and the other end of the clamping arm is hinged to the turnover small arm; the turnover oil cylinder is fixed to the clamping arm,and a piston rod is connected with the turnover small arm; and the magnetic attraction mechanism is an electromagnet and is arranged at the end part of the ship outer plate and / or the turnover small arm. According to the buoy catching device and the method, the rapid catching operation of a buoy is realized by simultaneously using the clamping arm and a magnetic attraction fixing mode.

The invention discloses a radio signal detection device and method in a specific area. The signal detection unit is used to detect wireless signals in a specific area; Carry out signal control and calculation, and distinguish the controllers inside and outside the area through the comparison of the strength of the two signals. Inductively receive and connect with the host through a coupler, the main antenna is more than one combined antenna set in the detection area and evenly distributed in the detection area. The auxiliary antenna is connected to the auxiliary machine through a coupler by inductively receiving signals from various directions, and the auxiliary antenna is more than one combined antenna set outside the detection area and evenly distributed outside the detection area.

The invention provides a safe and reliable mouse capture device, and belongs to the technical field of mouse capture. The device comprises a cage body, opening and closing doors are connected to the two ends of the cage body, a slippery trap is arranged inside the cage body, the upper end of the slippery trap is fixed through a cross rod, an opening of the slippery trap faces the opening and closing doors, and a feeding alluring hook is arranged at the rear end of the slippery trap. The slippery trap can trap a mouse, make it convenient to remove the mouse in the cage body in the later periodand prevent the mouse against contact with a capturer; the feeding alluring hook has an effect of trapping the mouse and can increase the success rate of the mouse capture of the device; the opening and closing doors are arranged at both ends of the cage body, the cage body of which the two ends are through creates a dark environment, and alluring of the device to the mouse can be improved, and the vigilance of the mouse in the cage body can be lowered. The safe and reliable mouse capture device has a good effect of trapping the mouse, the capturing success rate is high, after capturing is completed, the capturing interference on surrounding mice is small, the treatment of the captured mouse is high in convenience, and the safety is high.

The invention relates to a shared storage switch sending control method. According to the method, the characteristics of shared storage are sufficiently used, during switching data frame capture, only storage addresses of switches frames and state information such as switching data frame error information, switch ports and input or output timestamp are captured, the switching data per se is not captured, the captured data reuses the switching data, the release is realized after the captured data is output from a capture port, and the difficult design problem of the traditional capture port is effectively solved.

The invention discloses a peach pit removing device, which comprises a base, wherein a fixed rotating shaft base is transversely arranged on the base, a plurality of fixed peach bases are transverselyand fixedly arranged on the fixed rotating shaft base, movable peach bases which are rotatably hinged on the fixed rotating shaft base are arranged in front of the corresponding fixed peach bases, apush rod motor is hinged between each movable peach base and the base for pushing and overturning, a telescopic motor capable of pushing a peach pit out is arranged at the center of the fixed peach base and the movable peach base of each group, a longitudinal rotating shaft is arranged on the edge of an opening of each fixed peach base, the longitudinal rotating shaft is sleeved with a cutting blade used for separating and cutting peach pulp and a pit symmetrically, and a driving device capable of driving the cutting blade to turn over inwardly is arranged on the outer surface of each fixed peach base. The mousetrap device disclosed by the invention has openings in four sides for mice, greatly improves the success rate of capturing, improves the mousetrap quality, and has the advantages ofsimple structure and convenient use.

The invention provides a big data auditing scene analysis method and system applied to an intelligent education system, and the method comprises the steps: enabling an intelligent education platform to be divided into k auditing units according to different functions, and enabling the k to be a natural number; scanning each auditing unit to obtain a hook point, embedding a hook function in the hook point, monitoring an event message generated by each auditing unit, and intercepting and obtaining a message sent to a target window; and analyzing and processing the message sent to the target window, and determining whether a risk exists in a big data processing process or not. The system comprises modules corresponding to the steps of the method.

The invention provides a license plate snapshot intelligent illumination method and system. According to the scheme, illumination devices are arranged in front of and behind a highway license plate snapshot facility; a snapshot area is divided into a gradually strong illumination area, a stable illumination area and a gradually weak illumination area; when the brightness of the natural environmentaround the road license plate snapshot facility does not meet the license plate snapshot requirement, the illumination devices work, a vehicle passes through the gradually strong illumination area and reaches the stable illumination area, the license plate snapshot facility snapshots a license plate, and the vehicle passes through the gradually weak illumination area and then is driven away afterpassing through the stable illumination area; according to the scheme, the intelligent illumination method is provided for road license plate snapshot through an intelligent detection and control technology, the license plate snapshot success rate under the condition of insufficient light is improved, and the traffic safety problem caused by a light supplementing lamp mode is reduced.

The terminal device includes object lens, universal joints, motor drive and angular displacement sensor, part for switching channels, star capture channel and part, satellite laser communication channel and module, interfaces between each module and CPU, CPU, and interface between CPU and satellite platform. CPU controls switching part in adjustment channel so that light signal received by systemcan be transferred to star capture channel to capture stars, or to satellite laser communication channel, where relevant modules are cooperated to carry out satellite laser communication. Syncretizing function of star sensor, the system can accomplish capture procedure between communication terminal devices without need of scanning.