34results about How to "Solve the speed bottleneck" patented technology

The invention provides a distributed audio and video file processing system which comprises an input processing unit, multiple video data processing units, multiple audio data processing units, an output processing unit and a dispatching unit. The input processing unit is used for receiving and processing source video files to acquire audio and video data, the audio and video data are respectively segmented into audio and video data fragments which are dispatched to corresponding audio and video data processing units for processing according to a certain dispatching rule; the video data processing units are respectively used for processing the segmented video data fragments; the audio data processing units are respectively used for processing the segmented audio data fragments; the output processing unit is used for processing and outputting the processed audio and video data fragments; the dispatching unit is used for coordinating operation of the input processing unit, the audio and video data processing units and the output processing unit. The invention further provides a distributed audio and video file processing method and a distributed audio and video file processing device.

The invention discloses a data transmission method and a data transmission device for providing a serial and parallel combination transmission mode between a transmitting end and a receiving end. A plurality of control lines and a plurality of data lines are connected between the transmitting end and the receiving end, and the data lines can be increased based on a primary serial structure. The method comprises the following steps: packing data to be transmitted into a plurality of data packets according to the data lines and the data transmission mode at the transmitting end and distributing the data packets onto the plurality of data lines respectively; transmitting the plurality of data packets through the plurality of data lines respectively, wherein the data lines transmit the data packets in a serial mode; and receiving a plurality of data blocks at the receiving end respectively and recovering the data blocks into original data.

Provided is a high speed two-mode16/17 prescaler circuit belonging to high speed frequency synthesizer and high frequency transceiver technology field. The prescaler circuit comprises three positive edge triggers, a two input or a door, a two input or a non-door, a three input and a non-door and two negative edge triggers. The synchronization frequency division unit composed by the three positive edge trigger, the two input or door and the two input and the non-door adopts rising edge trigger except 4/5. The asynchronization frequency division unit composed by the two negative edge triggers adopts fall edge trigger except 4. The feedback control unit adopts the three input and the non-door. The prescaler circuit prevents the influence of the feedback path to the speed of the prescale in 17 frequency division in the existing technology and reduces the delay of the feedback path thus preventing the influence of the feedback state to the synchronization 4/5 frequency division speed, increasing the speed of the prescaler, solving the bottleneck problem of speed of the frequency synthesizer and realizing well the 16/17 high frequency division of the prescaler.

The invention relates to the field of bottle blowing machines, in particular to a servo motor mold opening and closing mechanism for a rotary bottle blowing machine. A hanging-lug-type mold carrier is adopted. The servo motor mold opening and closing mechanism comprises a connecting assembly connected to the hanging-lug-type mold carrier, and the connecting assembly is connected with a servo motor through a lead-screw and bushing transmitting mechanism. According to the servo motor mold opening and closing mechanism for the rotary bottle blowing machine, as the hanging-lug-type mold carrier, the connecting assembly, the lead-screw and bushing transmitting mechanism and the servo motor are arranged, track-free mold opening and closing control is achieved, and the multiple defects of a rotating speed bottleneck, serious abrasion, poor mold assembling-disassembling precision and poor mechanical stability of a track mold opening and closing mechanism in the prior art are overcome.

The invention provides a low-frequency string-wave signal phase difference measurement method and belongs to the field of phase different measurement with an aim to solve problems that existing phase difference measurement is complex in circuit structure and low in measurement accuracy. The low-frequency string-wave signal phase difference measurement method includes: subjecting two same-frequency string-wave signals acquired synchronously to no-signifying processing to acquire a first signal and a second signal which are to be process in an FPGA (field programmable gate array); sequentially determining self-correlation measurement value of the first signal, self-correlation measurement value of the second signal and cross-correlation measurement value of the first and second signals; according to noise and signal correlation features, acquiring self-correlation theoretical value of the first signal, self-correlation theoretical value of the second signal and cross-correlation theoretical value of the first and second signals; according to amplitude of the two same-frequency string-wave signals, the self-correlation theoretical value, the self-correlation theoretical value, the cross-correlation theoretical value of the first and second signals and an arbitrary-angle function relation formula, determining the phase difference of the same-frequency string-wave signals.

The embodiment of the invention discloses a fully-automatic bag fetching and opening machine. The fully-automatic bag fetching and opening machine comprises a lower opening mechanism, an upper openingmechanism and a bag fetching arm. A bag storage unit is fixedly arranged behind the lower opening mechanism and can move back and forth along with the lower opening mechanism. The upper opening mechanism is arranged on a longitudinal movement mechanism. The lower opening mechanism and the upper opening mechanism are each provided with a gluing mechanism. Each gluing mechanism comprises gluing wheels. Each gluing wheel is provided with adhesive tape. The adhesive face of each piece of adhesive tape faces the side away from the corresponding gluing wheel. The bag fetching arm is connected witha swing shaft through a hinge-joint seat and can be driven by the swing shaft to swing forwards and backwards. According to the fully-automatic bag fetching and opening machine, by means of the loweropening mechanism, the upper opening mechanism and the bag fetching arm, packaging bags can be fetched, opened and connected into a discharging mechanism in a sleeved manner fully automatically; the discharging speed is greatly increased while manpower is saved; and the main speed bottleneck problem found in the material packaging process is solved.

The invention discloses an implementation method for guaranteeing the real-time performance of semi-physical simulation by a three-layer structure, which aims at the real-time performance requirement of a semi-physical simulation system, starts from the top design and software and hardware, and is implemented by adopting a mode of reasonable division and mutual cooperation of hardware and software functions. A multi-core CPU is divided into two parts, wherein one part is that under RTX, threads where codes with high requirements for real-time performance are located independently occupy one CPU physical core respectively; the other part of the CPU is reserved in Windows to execute the codes that are time-consuming but not high in real-time requirement; the codes are divided into three layers on software, wherein the first layer is simulation and communication codes with high requirements on real-time performance; the second layer is a low-speed IO operation code; and the third layer is user interface codes. The division mode fully ensures that the real-time requirement of the semi-physical simulation is met, and ensures that threads where codes with high real-time requirement in the semi-physical simulation software are located can occupy CPU resources at any time and scheduling waiting does not occur. The third layer in the three-layer structure also provides a wide space for the design of the user interface, and the user interface of the third layer can use various UI design and programming languages based on the isolation effect of the second layer.