42 results about "OMAP" patented technology

The invention discloses a video data processing method and a video data processing device. The video data processing method includes: converting one or more channels of original video data acquired currently into video data in a preset format by means of image signal processing; according to channel number of a to-be-outputted video bitstream, adopting a Resize module in an OMAP (open multimedia application platform) processor to subject each branch of video data in the preset format to scaling for one or more times; coding and packaging the scaled video data to output a multi-channel video bitstream. According to the technical scheme, bitstream data in different demands can be generated, and low-resolution real-time video previewing on a remote network platform and local high-resolution videorecording of the same channel of data can be realized efficiently and simultaneously.

The invention provides a dual-mode navigator with a GPS receiving mode and a plough receiving mode. Satellites of two constellations can be used at the same time, so that the visible number of the satellites is increased. The navigator comprises an analog signal processing module, a GPS receiving module, a plough receiving module, a processor module and a power supply module. The analog signal processing module comprises an antenna, a low-noise amplifier, a filter and a power divider. The GPS receiving module comprises a GPS radio frequency front end module and a base band signal processing module. The plough receiving module comprises a plough radio frequency front end module, a high-speed A/D converter, an FIFO cache and an FPGA. The processor module is an OMAP dual-core processor which comprises a DSP core and an ARM core.

The invention relate to an Ad Hoc network construction method based on an OMAP 3530Mini development board which realizes the Ad Hoc network by using the OMAP 3530Mini development board as a hardware platform and using a wireless local area network card as hardware support. The method comprises the following steps of: manufacturing an embedded kernel suitable for the OMAP 3530Mini development board in the development environment of Ubuntu, adding necessary function in the kernel to adapt the requirement of the Ad Hoc network, manufacturing a simple root file system to finish the basic function of the file system, compiling the driver of the wireless local area network card in an intersecting way so that the driver can be successfully operated on the development board, driving the wireless local area network card to operate, compiling a wireless configuration tool in an intersecting way to perform network configuration on the wireless local area network card, transplanting an AODV (Ad Hoc On-demand Distance Vector) routing protocol so that a node in the network can perform multi-hop communication so as to finally construct the Ad Hoc network, performing point-to-point communication test and multi-hop test on the constructed network, and performing tests of functions for word communication, voice communication, ftp file transmission and the like.

The invention discloses a system and method for processing multimedia information of a sensor network based on an OMAP (Open Multimedia Application Platform). The system for processing multimedia information of the sensor network based on the OMAP is characterized by comprising an ARM (Advanced RISC Microprocessor) and a DSP (Digital Signal Processor) of the OMAP, wherein the ARM is mainly used for controlling the whole system; the DSP is mainly used for processing the multimedia information; and the ARM communicates with the inner part of the DSP through sharing the RAM; a sensor information module, a video information module and an audio information module which are connected with the DSP processor under the control of the ARM microprocessor; and an intermediate- and high-speed transmission interface module, a serial port module, a power management module, a GPS (Global Position System) module, a touch screen module, an upper computer and a WIFI (Wireless Fidelity) module which are connected with the ARM. The system and method for processing multimedia information of the sensor network based on the OMAP disclosed by the invention adopt an OMAP dual-core structure with excellent performance so that multimedia information such as audio/video and various sensor data can be acquired, sent, received and processed in real time; and the system and method for processing multimedia information of the sensor network based on the OMAP disclosed by the invention can be widely applied to fields, such as military reconnaissance, public security and the like as well as have very strong practicability.

The invention provides a navigation computer of an optical fiber gyro strapdown system based on OMAP, which relates to the navigation computer of a strapdown system. The invention intends to solve the problem of low navigation calculating efficiency of the navigation computer of a current strapdown system. Three-way gyro signal and three-way accelerometer signal output terminals of a data acquisition module of the navigation computer are connected with three-way gyro signal and there-way accelerometer signal input terminals of a navigation calculating and controlling module, storage signal input and output terminals of an external storage module are connected with storage signal input and output terminals of the navigation calculating and controlling module, and transmission signal input and output terminals of an external transmission module are connected with transmission signal input and output terminals of the navigation calculating and controlling module; interaction signal input and output terminals of a man-machine interaction module are connected with interaction signal input and output terminals of the navigation calculating and controlling module; and the navigation calculating and controlling module are implemented by an OMAP-L137 processor. The navigation computer of an optical fiber gyro strapdown system based on OMAP is suitable for the optical fiber gyro strapdown system.

The invention discloses an automated testing device for a power distribution terminal. The automated testing device is characterized by comprising an OMAP module, an FPGA module, a display module used for man-machine interaction, wherein the OMAP module and the FPGA module communicate with each other through a data bus, the FPGA module is connected with a telemetering input testing interface and carries out processing on tasks at a telemetering input side, the OMAP module is respectively connected with a remote signaling input testing interface and a remote control input testing interface and carries out processing on tasks at a control side, and a standard model of the automated testing device is used for constructing a plurality of the power distribution terminals into a plurality of logical devices according to a modeling principle of an IEC61850 standard, so as to achieve function tests of the power distribution terminal. The automated testing device for the power distribution terminal solves the problems that the existing state grid typical design power distribution terminal is low in testing efficiency, the field maintenance workload is great and the like.

The invention relates to a control device and control method of a modular multi-level high-voltage frequency converter. According to the invention, a hierarchical control mode suitable for the modular multi-level high-voltage frequency converter is provided according to the special structure of the modular multi-level high-voltage frequency converter. The control device includes a monitoring layer, a control layer and a field layer; the monitoring layer includes a specific control upper computer designed through adopting LabVIEW; the control layer adopts an OMAP-L137 and an FPGA with powerful processing and computation functions; and the field layer includes a plurality of data acquisition boards and a plurality of sub control boards. Separate control modes are adopted for the rectification side and inversion side of the modular multi-level high-voltage frequency converter; and the quantity of DSP data acquisition interface resources and PWM output interface resources fully satisfies the control requirements of the modular multi-level high-voltage frequency converter.

The invention discloses a stacking method and system of a video image with adjustable transparency based on an OMAP chip. The system comprises a user operation module, an acquisition module, a storage module, an ARM control module, a DSP operation module and a display module. A user selects a picture wanting to be stacked to display and a transparency value thereof through an interaction interface of the user operation module, preprocesses an OSD (on-screen-display) picture, and then writes in a cache zone of the storage module; the OMAP chip ARM control module and acquisition module acquire real-time video data in a specific format; the OMAP chip DSP operation module perform pixel-level weighted computation on the real-time video data and the picture data according to a set transparency value; and the display module display a final stacking fusion effect through an LCD screen. An operation of stacking the transparent OSD on the real-time video is independent of the complexity of the picture selected by the user, the real-time modification of the mixed transparence is supported, and the flexibility and the convenience of the OSD are improved.

A system and method implements optimal task partitioning between a general purpose processor (GPP) and a digital signal processor (DSP) to replace a fixed function ASIC solution with an OMAP software solution to implement a 3G phone that uses OMAP and requires MIDI synthesis, yielding a reduced system cost.

An OMAP-L137-based portable static Fourier transform spectrometer. The static Fourier transform spectrometer is high in performance, small in size and low in power consumption, is miniaturized, intelligent and portable, and can perform collection and mass data and processing of complex operation. The portable static Fourier transform spectrometer comprises a power module, a temperature control module, a spectral data collection module, a memory expansion module, a human-computer interaction module, a function expansion module and a CPLD module; the temperature control module is internally provided with a temperature control output circuit, an electric heating shell, a temperature shell, a temperature sensor and AD7710 which are electrically connected in sequence; the human-computer interaction module is internally provided with AD7843 and a touch screen controller and an LCD display screen AT050TN22 which are electrically connected with the AD7843, and the temperature control module and the human-computer interaction module are electrically connected with an OMAP-137 main control chip through an arranged SPI1 interface module to communicate; and the spectral data collection module is internally provided with an optical system linear array CCD, an SPI0 interface, ADSI178 and OPA4348 which are electrically connected in sequence and communicate with the OMAP-137 main control chip through the arranged SPI0 interface.

The invention provides an embedded intelligent milling duplication eliminating balance measuring system based on an OMAP, and belongs to the technical field of detection devices. The system is composed of a signal conditioning circuit, an A/D conversion system and an OMAP embedded system. The signal conditioning circuit is composed of a left magnetoelectric sensor, a right magnetoelectric sensor, a signal conditioning circuit, a photoelectric sensor, a mean value extracting circuit, a pulse shaping circuit and a phase locking doubling circuit. Mechanical vibration signals are converted into voltage signals through the left magnetoelectric sensor and the right magnetoelectric sensor, the photoelectric sensor acquires phase reference signals, and the A/D conversion system is used for A/D conversion. Digital signals generated after A/D conversion are sent to an ARM in the OMAP system, full period sampling is conducted under the effect of clock pulse signals, sampled periodic signals are sent to a DSP unit through an SCR/EDMA, the amplitude and phase information of the amount of unbalance is extracted through calibration and resolving, and meanwhile the speed of a rotating spindle is measured according to shaped pulse signals.

The invention discloses an intelligent distribution transformation terminal monitoring system. The intelligent distribution transformation terminal monitoring system comprises a distribution transformation monitoring terminal, a condition monitoring server, an electric energy quality management server, a communication network, a distribution network master station, a condition monitoring IED and primary equipment. According to the intelligent distribution transformation terminal monitoring system, an intelligent distribution transformation terminal scheme is designed by using a high-performance dual-core embedded microprocessor OMAP-L138, so that the power requirement of an intelligent power distribution region is met; a dual-core DSP and an ARM are of independent operation, and are of a good data interaction and peripheral visiting mechanism, so that the whole performance of the system is improved; the modularization and bus technique is adopted in the design of a terminal, the systemhas the expansibility of functions, the upgrading of the system can be realized conveniently, and the development period is shortened; and designing is carried out by using bus interfaces of industrystandard, so that the terminal has good openness and flexibility, and the reliability of the system is improved.

The present invention belongs to the technical field of embedded computers, and in particular relates to a portable low-power cipherable military electronic flying lapboard. The military electronic flying lapboard is characterized in that: an OMAP processor based on a symmetric multi-processing heterogeneous multi-core system is used to complete application layer data processing, satellite positioning signal solving, display control, audio output/input, power management, receiving and responding to the touch screen and the key signal, data exchange, and other functions, and has relatively lowpower consumption; an open source Android 4.0 or higher operating system is used, and boot encryption software of the system is used to satisfy the functional requirements of the device for boot graphics encryption and password encryption; a flight card template with text, table and picture editing functions is customized according to the military aircraft mission requirement, and the use requirements of pilots for combat, training, reconnaissance, and the like are satisfied; and the user can encrypt and set passwords for the sensitive data according to demand, and a one-click fast data hard self-destructing function can be provided to clear confidential information stored by the user.

The invention discloses an NEXT series product OMAP and FPGA calculation system, which consists of an FPGA system, a DSP system, a bionic polarization optical sensor, an A/D conversion circuit, a milemeter, an MEMS, a Big Dipper/GPS, an elevation meter and a PC, wherein the FPGA system is connected with the milemeter, the MEMS, the Big Dipper/GPS, the elevation meter and the PC through expansion serial ports, and is used for system data integration and preprocessing; the DSP system and the FPGA system are in two-way connection through an EMIFA interface of the DSP system, and is used for realizing the navigation calculation of the system; the bionic polarization optical sensor is used for collecting polarization light signals; the elevation meter is used for carrier altitude positioning; the PC is used for outputting attitude angle, speed and position information to realize the combined navigation function. The NEXT series product OMAP and FPGA calculation system has the characteristics that the structure is simple; the integration degree is high; the power consumption is low; the operation speed is high.

The invention discloses a data deletion method. The method comprises the steps of determining an HDD where to-be-deleted data is located according to a received deletion instruction; migrating journal and omap corresponding to the HDD to an SSD through a preset migration script; and deleting the to-be-deleted data in the journal and the omap through the SSD. Because SSD read-write efficiency is far higher than the feature of the HDD, journal and omap of stored data of the HDD are migrated to the SSD through the preset migration script. Through the SSD, the deletion of the stored data in thejournal and the omap is realized. The data deletion efficiency of a storage system is greatly improved. The storage space can be more efficiently vacated for storing new data. the storage space of thesystem is conveniently integrated and utilized, and the utilization rate of the storage space is effectively improved. The invention further discloses a data deletion system and device and a computerreadable storage medium which all have the above beneficial effects.

A software-defined tactical radio solution meets the original JTRS SWaP goals by providing four complete software-defined 125W (peak) radio channels in four modules that replace the four UT modules of the current GMR design, while retaining the GVA and NIU of the GMR. Two dual transceiver modules each include two transceivers based on OMAP processors. Two dual-channel power amplifier modules each include two 125W (peak) amplifiers, each amplifier combining two GaN transistors combined in parallel. In embodiments, the OMAP processors include TM320C64xx DSP cores. In some embodiments, the OMAP processors are DM3730 processors. In various embodiments, each dual transceiver module includes a five Watt power amplifier. In embodiments, SINCGAR, SRW, and/or WNW waveforms are supported by software configuration. In some embodiments transceivers can be transitioned by software between waveforms.

The invention provides a metadata backup and recovery method based on a file storage system. The method includes: designing an import interface and an export interface of an omap object; designing a metadata backup script to call a storage system command or a linux command, and backing up metadata objects in the file system at set time intervals; and designing a metadata recovery script, and recovering a single metadata object or all backed-up metadata objects when metadata is damaged. By designing import and export interfaces of an omap object and using a script to call a storage system command or a linux command at the same time, metadata objects in a file system are backed up regularly, and when metadata is damaged, a single metadata object or all backed-up metadata objects can be recovered. Not only is recovery speed improved, but also data loss is reduced.

The invention discloses a method and system for improving bucket log performance in a distributed object storage system, and the method comprises the steps: initializing a global data structure when a distributed object storage gateway is started; picking request information of the access request according to an access request processing result of the current service thread to the client; according to the global data structure and the request information, constructing a map form of an omap structure of a bucket log object; and storing bucket log records by utilizing an omap structure of the bucket log rados object. The system comprises an initialization module, a request information extraction module, a map form construction module and a storage module. By means of the method and device, locking can be avoided, the problem that the log recording time sequence is inconsistent is solved, and then the bucket log performance of the distributed object storage system is greatly improved.