56results about How to "Improve data reading efficiency" patented technology

The invention discloses a rapid caching method for a large-scale remote sensing image, belongs to the field of remote sensing visualization, mainly aims at the large-scale remote sensing image, and provides a remote sensing image data caching method based on a memory block. The method comprises the steps: carrying out the layered and segmented storage of the remote sensing image in a memory at different resolutions; building the relation of layer, row and column of the corresponding image blocks, and carrying out the dynamic scheduling of memory blocks, thereby remarkably increasing the loading and browsing speed of the large-scale remote sensing image. A memory caching layer is disposed in a bottom data reading and rendering pipe, thereby reducing the reading frequency of a magnetic disc,wherein the reading speed of the memory is about 100 times higher than the reading speed of the magnetic disc. Therefore, after the memory caching mechanism is added, a system can greatly improve thereading efficiency of cached data. The memory fragments, caused by repeated application, of the memory are reduced, and the performances of the system are improved. A memory caching region is employed for applying for and releasing the memory, thereby solving a problem of memory leakage.

The invention relates to a high-speed multichannel real-time analog quantity detection system with an enhanced data buffer memory. The system comprises a signal conditioning circuit, an analog detection circuit, an analog quantity detection circuit, an FPGA and a DSP, wherein the signal conditioning circuit converts an analogy signal input from the external into a directly sampling voltage or current signal; the analog quantity detection circuit is connected with the output end of the signal conditioning circuit, and converts the sampling voltage or current signal into a corresponding digital signal; the FPGA is connected with the output end of the analog quantity detection circuit, and is internally provided with an ADC driving module, an FIR digital filter and an enhanced double-port RAM storage management module, multiple ADC chips are operated rapidly, and data is filtered and stored; and the DSP is connected with the enhanced double-port RAM storage management module, reads the digital signals from the enhanced double-port RAM storage management module, processes the read signal, and communicates with the external. Under the high-speed, multichannel and synchronous sampling condition, delayed time is reduced, the precision is high, the precision and instantaneity of the detection system are improved, and the channel expansion capability and the anti-interference capability are high.

The invention discloses a memory-chip data acquiring device for AX-flash mobile phones. The memory-chip data acquiring device is characterized by comprising an eMMC (embedded multi- media card) chip clamping holder, an eMCP (embedded master control program) chip clamping holder, a memory-controller chip and a level selection switch, wherein the eMMC chip clamping holder and the eMCP chip clamping holder respectively establish signal connection with the memory-controller chip through two independent data buses, the memory-controller chip is provided with a USB (universal serial bus) main machine interface, and the level selection switch is connected with the eMMC chip clamping holder and the eMCP chip clamping holder. The memory-chip data acquiring device disclosed by the invention has the benefits that when the memory-chip data acquiring device disclosed by the invention is used, a memory chip in a mobile phone needs to be separated from a main board, and therefore, the use of the memory chip is not influenced by the damages of a display screen, a cell and a communication interface of the mobile phone; the device disclosed by the invention is provided with the eMMC chip clamping holder and the eMCP chip clamping holder in two different interface manners, and therefore, the device can satisfy the reading requirements for more than 99% of memory chips on the current mobile phone market; the device disclosed by the invention is provided with two independent data buses for supporting the simultaneous data analysis of memory chips, of two different specifications, of the mobile phone, so that the data reading efficiency is high.

The invention discloses a clustering storage method for airborne navigation data, which comprises the following steps of: A, sequentially dividing continuous blocks in a geographic coordinate system,acquiring longitude and latitude coordinate positions of aviation data from the airborne navigation data, and respectively dividing and marking each piece of aviation data into blocks corresponding tothe geographic coordinate system according to longitude and latitude coordinates of each piece of aviation data; B, sequentially endowing all blocks in the geographic coordinate system with block identification information corresponding to each block according to a geographic position sequence; and C, performing clustering storage on the airborne navigation data: during airborne navigation data storage, storing the airborne navigation data and the block identification information in the same block into the same storage space, and establishing a block-based index database at the same time. According to the method, different types of aviation data are clustered and stored according to geographic positions, so that the data reading efficiency of airborne equipment can be improved, and the operation efficiency and real-time performance of the system are guaranteed.

The invention relates to the technical field of storage equipment, and puts forward a data reading method and device for storage equipment, terminal equipment and a storage medium. The data reading method comprises the following steps that: obtaining a plurality of data reading commands issued from a principal computer; analyzing the plurality of data reading commands to independently obtain a physical address corresponding to each data reading command, wherein the physical address comprises the chip selection address and the memory unit address of flash; and according to a sequence of firstlytraversing the chip selection address and then traversing the memory unit address, submitting the data reading command to the controller of the flash to enable the controller to execute the receiveddata reading commands in sequence. By use of the method, the data reading commands are sorted according to the sequence of firstly traversing the chip selection address and then traversing the memoryunit address, so that each chip selection memory area of the flash can begin data preparation work in time, and the data reading efficiency of the storage equipment is obviously improved.

Embodiments of the invention disclose a data reading method and device of a memory, and a data writing method and device of the memory, belonging to the technical field of integrated circuits. The data reading method and device and the data writing method and device can effectively improve data reading and writing efficiency on the premise of ensuring correct data reading and writing. The data reading method comprises the following steps: writing test data into preset storage unit rows of the memory based on a test write effective signal; respectively reading the data in the preset storage unit rows according to different data reading time sequences to obtain corresponding read-out data; determining a critical reading duration corresponding to a reading time sequence of the memory according to the change of the consistency of the reading data and test data; and performing read operation on the memory according to the critical reading duration. The methods and devices are suitable for integrated circuit design.

The present disclosure relates to a hash table data storage management method, device, medium, and electronic equipment, wherein the method includes: obtaining data in the hash table to be processed, each data carrying a hash value, an address offset, and the associated hash Table identification; based on the identification and hash value of the hash table to which each data belongs, look up the address of each data in the corresponding storage area in the memory in the pre-established hash lookup table, and the corresponding storage area in the corresponding storage area The address of the unit, and then determine the actual physical address of the data to be written based on the address offset, and finally write the data into the corresponding storage unit in the memory. The embodiments of the present disclosure can improve the portability of the hash table, and the data is stored more aggregated, so that the subsequent data reading efficiency of the hash table is higher.

A method for displaying the real scene space on a navigation map. The data storage and processing method is as follows. The data part is entered from the outside. In order to solve the problem of excessive original data, data compression is required after data entry. The proposed method is here The basic idea of ​​the scheme is to reorganize and sort the original data, and it is necessary to ensure that the data is not damaged; the data mainly consists of two parts: the object model and the model texture; the object model is divided into two parts, one part is a separate model with no commonality, and the other part is There is a common model with commonality; the original vertex coordinates and texture coordinates are all stored by floating point numbers. The invention has the advantages of solving the problem of limited capacity of the storage medium by compressing the data, and improving the utilization rate of the storage medium. It improves the efficiency of the program in data reading, and is especially effective in guiding and prompting complex intersections. It is an indispensable real-scene display technology for future metropolitan navigation.