52results about How to "Low execution efficiency" patented technology

The invention provides a bank system historical data cleaning method and device, used for cleaning historical data of a database data table. The bank system historical data cleaning method comprises the following steps: formulating a data cleaning rule according to the life cycle and association relationship of the data table of the database; screening data and key values of the data table to be cleaned according to the data cleaning rule, and determining the cleaned data index of the data table to be cleaned; cleaning the data of the data table of the database according to the data cleaning index, and writing the key values of the cleaned data into a backup index file; and generating a cleaning statistics report and recording the cleaned data in the file to save for a set time according to the backup index file, so as to support recovering the file from the file as needed. Through the bank system historical data method and device disclosed by the invention, the cleaning of the historical data can be realized, and efficient and safe operation of the production environment system can be ensured; therefore, the impact of the historical data cleaning process on normal business applications is avoided to the greatest extent, and the probability of affecting the normal applications in the normal production environment after the data cleaning is reduced.

The invention discloses a H.264 standard-based deblocking filter boundary strength computing device and method, which are used for computing boundary strength of boundary points during H.264 deblocking filtering. According to the invention, the boundary point with same modes are pre-judged according to a coding mode of current macroblocks and a coding mode of adjacent macroblocks and according tothe condition that boundaries of the macroblocks exist, and can be directly assigned. For the boundaries which can not be directly assigned, logic operation and arithmetic operation are adopted for replacing skip judgment when the boundary strength is computed. The invention has the advantages of being capable of remarkably reducing a large quantity of repetitive computation and complex conditionjudgment of a deblocking filtering link of the H.264 standard and increasing program execution efficiency, and is especially suitable for embedded processors such as a DSP (Digital Signal Processor).

The invention discloses a space debris collision early warning method, which is characterized by comprising a space debris positioning system and an early warning system; the early warning system is used for calculating the relative motion trail of space debris under a spacecraft orbit coordinate system by utilizing spacecraft orbit information through space debris observation information detectedby a microwave radar on a spacecraft, calculating the minimum distance of the space debris relative to the spacecraft in the future T time, giving early warning information by judging the minimum distance for multiple times, and starting an orbit avoidance program for avoiding collision. Compared with the prior art, the invention aims to provide the space debris collision early warning method, which is provided for the collision harm of the space debris to the satellite, has a good actual processing effect, and can be widely applied to space debris monitoring.

A multi-thread processor (1) which executes instructions in multiple threads in parallel is provided with a computing unit group (119) comprising multiple computing units each for executing an instruction, a first instruction grouping unit (108) to a third instruction grouping unit (110) each for, in each thread, grouping instructions included in the thread into a group comprising instructions concurrently executable by the multiple computing units, a thread selection unit (114) for selecting, from among the multiple threads, a thread including instructions to be issued to the multiple computing units at every execution cycle of the multi-thread processor (1) by controlling the frequency of execution of the instructions in the multiple threads, and an instruction issuance control unit (115); for issuing the instructions of the grouped group among instructions included in the thread selected by the thread selection unit (114) to the multiple computing units at every execution cycle of the multi-thread processor (1).

A power transmitter (101) for inductively transferring power to a power receiver (105) comprises a resonance circuit (201) comprising a transmitter coil (103) for generating a power transfer signal. A sampler (511) samples a current through, or voltage over, the transmitter coil (103). A message receiver (509) receives messages load modulated onto the power transfer signal based on the samples. A driver (203) generates a drive signal for the resonance circuit (201) and a resonance modification circuit (505) reduces the resonance frequency of the resonance circuit (201) by slowing a state change for a resonating component of the resonance circuit (201) for a fractional time interval of the cycles of the drive signal. A sample time controller (513) controls the sample times in response to at least one of start-times and end-times of the fractional time intervals, and specifically may set the sample times to be within the fractional time intervals.

Provided is a space debris pre-warning method based on GPU acceleration. The method comprises following steps: (1) transplanting an SGP4 / SDP4 model on a GPU, initializing parameters of the SGP4 / SDP4 model on a CPU and setting the number of thread blocks on the GPU and the thread number of each thread block; (2) obtaining TLE data of currently pre-warning space debris on the CPU and copying obtained data to the assigned GPU memory; (3) initializing a zero-copy memory pointer, mapping the pointer to the above GPU memory, combining the available maximum memory and thread number based on the number of currently pre-warning space debris to calculate the batch size of space debris; (4) using zero-copy technology for batching space debris according to the above batch size in order to obtain collision probability of each debris at each time point in the manner of an assembly line and sending back to the CPU for storage; (5) releasing assigned GPU memory after processing space debris.

The invention relates to an intelligent scheduling method of a single-thread and multi-priority system. The intelligent scheduling method of the single-thread and multi-priority system includes the step of deferred execution scheduling and the step of appointed instruction control execution, wherein according to the step of deferred execution scheduling, a deferred execution state identity is added to each kind of instruction, and whether the non-deferred state needs to be recovered or not is detected by a deferring recovery detector; according to the step of appointed instruction control execution, a control cycle is set, an execution threshold value of each appointed instruction is calculated in each control cycle, and the number of executed appointed instructions in each control cycle is controlled according to the execution threshold values. Compared with the prior art, the intelligent scheduling method of the single-thread and multi-priority system improves the instruction execution efficiency, and solves the problem that in the single-thread and multi-priority system, due to insertion of low-priority tasks occupying too much time, execution efficiency of high-priority tasks drops largely.