43results about How to "Guaranteed adaptive" patented technology

The invention discloses a self-adapting channel estimating method applied to 3GPP LTE system. The method comprises the following steps: (1) the LS (least square) channel estimating value at a pilot tone is computed according to reference signals in a receiving data field; (2) interpolation in the time domain is performed according to current frame pilot tone channel estimated value data and reserved delay frame pilot tone channel estimated value data, and a pilot matrix encrypted is obtained through computing; (3) channel delay spread is estimated according to LS estimation value at the pilot tone, then radio frequency channel filtering coefficient is selected according to the delay spread, and the frequency domain estimation value is computed; and (4) channel Doppler spread is estimated according to the LS estimation value at the pilot tone, then time domain filtering coefficient is selected according to the Doppler spread, and the time domain channel estimation value is computed. The self-adapting channel estimating method provided by the invention has a self-adapting capability to channel characteristics, reduces the occupancy rate and working consumption of hardware resource, improves the estimating speed and reduces computation delay of an estimator.

The invention discloses a dual-core medical electric bed controller which comprises a control module, a controller, a plurality of motors, a signal processor and a mechanical device. A control signal is sent to the controller by the control module, a plurality of driving signals are sent by the controller, the motors are respectively driven by the driving signals and the driving signals of the motors are synthesized by the signal processor, so that the mechanical device is controlled to move. The driving signals comprise a first driving signal, a second driving signal, a third driving signal, a fourth driving signal, a fifth driving signal, a sixth driving signal, a seventh driving signal, an eight driving signal, a ninth driving signal, a tenth driving signal, an eleventh driving signal, a twelfth driving signal and a thirteenth driving signal. The motors comprise a first motor, a second motor, a third motor, a fourth motor, a fifth motor, a sixth motor, a seventh motor, an eighth motor, a ninth motor, a tenth motor, an eleventh motor, a twelfth motor and a thirteen motor.

The invention relates to the technical field of data processing and discloses a method and a device for optimizing application program performance. The method comprises the following steps of: monitoring the operation state of a system; and if the operation state of the system satisfies a preset condition, loading or unloading application program data corresponding to the preset condition. The invention smoothens the operation of an application program and improves the response speed of the application program.

The invention belongs to the technical field of mobile communication and provides a channel estimation method based on a time-domain sliding window. The method includes the following steps: according to reference signal sign frequency domain estimation values in the time-domain sliding window, calculating time-domain estimation coefficients corresponding to subcarriers on OFDM symbol positions; according to the reference signal symbol frequency domain estimation values and the time-domain estimation coefficients, performing time-domain channel estimation on OFDM symbols without reference signals and outputting a channel estimation value; and updating the reference signal symbol frequency domain estimation values in the sliding window. The invention also provides a channel estimation device based on the time-domain sliding window. The device is capable of obtaining a higher channel estimation precision compared with a linear interpolation estimation technology based on two reference signals; the time-domain sliding window is adopted and in terms of time, channel information in the history or at a present moment is mainly used and a repeated or mixed output mode is adopted so that the estimation performance is improved and at the same time, larger processing waiting or realization difficulties are not brought; and the real-time update of the sliding window ensures self-adaption to a time-varying channel in an estimation process.

The invention provides a method for training a wake-up model and a device thereof, and the method comprises the steps: obtaining a first training set and a second training set when the model trainingis triggered; respectively inputting the first training set into an initial acoustic model and a current acoustic model, and determining a first difference parameter by comparing output results of theinitial acoustic model and the current acoustic model; inputting the second training set into a current acoustic model, and determining a second difference parameter by comparing an output result ofthe current acoustic model with a one-hot code corresponding to wake-up voice which can be recognized by the current acoustic model; and adjusting model parameters of the current acoustic model according to the first difference parameter and the second difference parameter. By utilizing the method provided by the invention, the current acoustic model can be compatible with the initial voice underthe condition of ensuring that the current acoustic model adapts to the current scene, the risk of unstable performance of the wake-up model caused by updating is reduced, and the trained acoustic model is well compatible with the previous initial wake-up scene on the premise of adapting to a more complex scene.

The embodiment of the invention discloses an image data processing method and device, a storage medium, and a terminal. The method comprises the steps of acquiring image data collected from a first detection moment, screening the image data by adopting a pre-configured image screening frame rate, and adding the screened image data into a network uploading cache; and uploading the image data in thenetwork uploading cache to a network server based on the current network state; when a second detection time is reached, and acquiring data amount change information in the network uploading cache between the first detection moment and the second detection time, and updating the image screening frame rate based on the data amount change information. By the adoption of the method, the current network state can be timely acquired to update the image screening frame rate, so that the image screening frame rate is guaranteed to be adapted to the network state, and then the effect of network livebroadcasting is guaranteed.

The invention discloses a valve bridge for a valve driving mechanism, the valve driving mechanism includes a guide pin (22), a middle part of the valve bridge (23) is provided with a through hole (231), the guide pin (22) penetrates through the through hole (231), the through hole (231) comprises a conic hole section (2311) and a cylindrical hole section (2312), the guide pin (22) comprises a spherical section (221) of which a bus is an arc line and a cylindrical section (222) of which a bus is a straight line, a contact line between the spherical section (221) and the conic hole section (2311) is a closed loop line, and diameter of the cylindrical hole section (2312 is more than that of the cylindrical section (222). The valve bridge disclosed by the invention can provide structure base for implementing synchronous start and close of two homologous valves, and has simple structure and higher reliability. The invention also discloses a valve driving mechanism including the valve bridge and an engine including the valve driving mechanism.

The invention relates to the technical field of ultrasonic data processing, in particular to a multi-channel high-speed LVDS data ordering method and circuit based on an FPGA. According to the technical scheme, each output port of each channel of each analog-to-digital conversion chip is correspondingly provided with an automatic ordering module on an FPGA chip, and each different output end of each analog-to-digital conversion chip is accurately set by the automatic ordering module when the power-on is started every time, so that the difference influence caused by the difference of hardware parameters of different output ends at different environment temperatures is overcome. The method has the advantages that dynamic optimal time sequence search and adjusment are carried out after each time of power-on, the problem that time delay differences exist between different circuit boards and different FPGA devices at different environment temperatures is effectively solved, and the correctness and stability of obtained sampling data are ensured. Meanwhile, respective channels are ordered independently in parallel, so that the adaption to the difference of each channel can be ensured to the greatest extent, and the ordering efficiency is also effectively improved.

The invention relates to a method and a system for obtaining multiple visual medical services rapidly based on LBS. According to the method, an LBS device receives interest point thematic map data marked with service items and uploaded by a medical service institution; the LBS device acquires location information reported by a user; service items and interest points, which meet requirements, near the geographical location in geographical location information are screened on the LBS device according to the location; and the service items and the interest points are displayed on an LBS interface of a mobile terminal user so that the mobile terminal user can make an appointment for video items. The user establishes visual data exchange with a medical service main body through an LBS medium so that a user acquires needed personalized video data from mass information conveniently, a positioning technology is used, visual communication increases the reality of on-line medical service information, and the network medical credibility is improved.

The invention discloses a bone conduction earphone for sports at night. The bone conduction earphone comprises a bone conduction earphone body and a haze monitor; a connection block is installed over the bone conduction earphone body; a fixing rod is installed over the connection block through a telescopic connecting rod; both two sides of the bone conduction earphone body are each provided with a fluorescent layer; the haze monitor is installed on the front surface of the bone conduction earphone body; an audio receiver is installed below a switching button; and a vibration conduction layer is fixedly installed on the rear surface of the bone conduction earphone body. According to the bone conduction earphone disclosed by the invention, two sides of a shell are each provided with the fluorescent layer; the bone conduction earphone can emit vivid light when outside light is relatively dark; therefore, the purposes of striking and reminding pedestrians and vehicles can be achieved; the haze monitor is installed on the top of the device; the air quality can be known better through detection of the haze monitor; and thus, on the basis of sports and fitness, air adaptation can be ensured.

The invention discloses a logging winch super depth protection system, which comprises a pneumatic brake loop and a control circuit of power system. A commutation and selection loop is arranged between the manual directional valve and the air compressor of the pneumatic brake loop, and the control circuit is provided with an alarm signal processing circuit; when the depth value of the logging winch exceeds a set value, the alarm signal processing circuit receives the alarm signal in the control circuit to generate alarm control signal to control the commutation and selection loop to work, and after the motion of the commutation and selection loop, the pneumatic brake loop can be started to brake. The invention establishes the association of the power system and depth monitor system of the logging winch, and realizes the protection function of automatic brake for the logging winch with super depth.

The invention discloses a target ship damage effect measurement system. The target ship damage effect measurement system comprises a measurement and acquisition unit, a data access exchange unit and adata storage and recovery unit, wherein the measurement and acquisition unit is used for measuring and acquiring a series of physical quantities reflecting impact vibration of a target ship and changes of the structure and the surrounding environment of the target ship and on-site video images in an offshore target practice test; the data access exchange unit is used for summarizing and distributing all paths of data transmitted by the measurement and acquisition unit; the data storage and recovery unit is used for storing and recording the data output by the data access exchange unit; and the data storage and recovery unit can be automatically separated from the target ship when the target ship sinks and float on the water surface, and meanwhile, the data storage and recovery unit is provided with a wireless positioning and signal sending device used for sending position signals of the data storage and recovery unit to the outside. The system has the advantages of being simple in design, reliable in test data acquisition, convenient and fast to recover and the like, and is particularly suitable for the target practice test of an overwater real ship.

The invention discloses a cultivation device of high altitude Setaria viridis, comprising a cultivation box and a single-chip microcomputer. The cultivation box is provided with hinges; a box cover isconnected with the cultivation box through the hinges; a handle I is arranged at the top of the box cover; one side of the cultivation box is provided with a liquid medicine inlet; the bottom of theliquid medicine inlet is provided with a sliding chamber; a retaining plate is arranged inside the sliding chamber; a handle II is arranged on the retaining plate; a motor box is arranged at the bottom of the sliding chamber; a vibrating motor is arranged inside the motor box; the vibrating motor has an output shaft; a damping pad is arranged at the bottom of the vibrating motor; a gas box is arranged at the bottom of the motor box; a carbon dioxide bag is arranged inside the gas box. The cultivation device of high altitude Setaria viridis is reasonable in design, high in practicality, convenient to use and suitable for popularization.

The invention discloses a height-adjustable self-locking interbody fusion cage device, which includes an elastic mechanism. The elastic mechanism is arranged in a shell; the upper side and the lower side of the elastic mechanism are clamped with an upper fusion plate and a lower fusion plate respectively; a chute is formed in one end of the elastic mechanism; a closing-up plate is arranged in thechute; the closing-up plate controls the depth of being screwed into/out of the shell through a threaded rod; the elastic variable quantity of the elastic mechanism is larger than the variable quantity of the height of the interbody fusion cage device; and the height of the interbody fusion cage is controlled by adjusting the matching depth of the closing-up plate and the elastic mechanism. On thepremise that the vertical height is adjusted at the same time, self-adaption of a certain angle and continuous acting force on the upper end plate and the lower end plate are guaranteed, and self-fixing is reliable.

The present invention discloses a video control box for a ship. The controller comprises a control box body, waterproof joints and a control circuit board; the control box body is provided with the upper cover of the control box, a waterproof adhesive tape is connected with a gap between the control box body and the upper cover of the control box, a plurality of waterproof joints are arranged above the waterproof adhesive tape, one sides of the waterproof joints are provided with a ship work state indication lamp, the upper end face of the upper cover of the control box is provided with cooling fins, two ends of the control box body are respectively provided with installation bases, the installation bases are provided with screws, a coaxial mixed loading aviation socket is arranged at the upper right portion of the back end of the control box body, the coaxial mixed loading aviation socket is installed on a fixed disc, a power indicator and a function switch are arranged at the lower left portion of the back end of the control box body, and the control box body is internally provided with the control circuit board. The cooling fins are arranged to accelerate the dissipation of heat in the device so that the device safety is ensured, the parts of the device cannot be damaged caused by high-heat accumulation and the service life of the device is prolonged.

The present invention provides an efficient pond microbial preparation adding device, which comprises a fixing frame, a steering motor, a stirring motor and a rolling rod; a floating plate is fixedlyinstalled at the bottom end of the fixing frame, a walking motor is arranged on the left side of the interior of the fixing frame, the steering motor is arranged on the right side of the interior of the fixing frame, and a top box is installed on the top face of the fixing frame; a discharging hole is formed in the bottom end of the storage groove, a driving wheel is installed on the outer side ofthe output end of the walking motor, a sleeve is fixed to the outer side of a side plate, a pawl is connected to the outer side of the top end of an adjusting rod, a fixing hole is formed in the sideplate, and a push plate is correspondingly installed on the inner side of an empty groove; and partition plates are arranged on the outer sides of the bottoms of the supporting rods. The high-efficiency pond microbial preparation adding device can adapt to ponds of different sizes, wherein the adding amount and the adding range of microbial preparations can be adjusted, and the stability of the pond water environment can be guaranteed.

The invention discloses a coiled material shaping and cutting machine. The coiled material shaping and cutting machine comprises a discharging mechanism, a shaping mechanism and a cutting assembly mechanism. A coiled material on a reel stretches out and makes contact with an initial drive wheel, and the cross section contour of the coiled material at the position of the initial drive wheel is a line segment. The shaping mechanism makes contact with the coiled material conveyed out of the discharging mechanism. The shaping mechanism comprises multiple shaping jigs sequentially arranged in the conveying direction of the coiled material. Each shaping jig is provided with a shaping seam allowing the coiled material to penetrate through, the coiled material penetrating through the shaping seamsin the conveying direction of the coiled material is finally in butt joint with a product, the track curvature of the shaping seam in each shaping jig is gradually increased, and the track of the shaping seam of the shaping jig closest to the product is matched with the edge track of the product. A cutting knife is arranged between the shaping jigs and the product, and the cutting knife sequentially cuts off the coiled material in the direction vertical to the curved surface where the coiled material is located. By the adoption of the coiled material shaping and cutting machine, common coiledmaterials are shaped into forms of which the coiled materials and product seams are assembled suitably stage by stage, and special-shaped small-size sheet parts are efficiently assembled.

The invention discloses a multifunctional suspension interconnection system suitable for a six-wheeled vehicle. The rear end of a front rocker arm is connected with the front end of a rear rocker armthrough a crossing adjusting rod, the crossing adjusting rod is provided with a spring rod, the front end of the front rocker arm is connected with a front wheel axle via a universal joint, the two ends, connected with horizontal upper and lower rocker arms, of the rear end of the rear rocker arm are provided with longitudinal upper and lower rocker arms, and the two ends of the longitudinal upperand lower rocker arms are connected with a rear wheel axle through universal joints. The multifunctional suspension interconnection system suitable for four-wheeled vehicles is characterized in thatthe front end of a front rocker arm is connected with a front wheel axle through a universal joint, and the rear end of a rear rocker arm is connected with a rear wheel axle through a universal joint.According to the multifunctional suspension interconnection system suitable for eight-wheeled vehicles, the front end of a front rocker arm and the rear end of a rear rocker arm are connected with the multifunctional suspension interconnection system suitable for the four-wheeled vehicle through universal joints, and the front end of the front rocker arm is connected with a transverse up-and-downrocker arm and a longitudinal up-and-down rocker arm through universal joints. The invention further provides a corresponding vehicle. The system realizes comprehensive inclination prevention, and has a cross lifting torsion eliminating function and a damping function.