Data processing computer system for distributed POS (point of sale)

A computer system and data processing technology, used in navigation calculation tools, radio wave measurement systems, satellite radio beacon positioning systems, etc. Real-time navigation data, real-time differential GPS data time synchronization data, poor data processing capability of ARM chip, etc., to achieve the effect of high-speed and reliable transmission

Active Publication Date: 2014-06-18
BEIHANG UNIV
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Problems solved by technology

The Chinese invention patent "A Distributed POS Sub-IMU Data Synchronous Acquisition System" (patent application number: 201210171259.1) realizes the acquisition, preprocessing and data time synchronization of multiple sub-IMU raw data by using the FPGA+ARM architecture. However, due to the ARM The data processing ability of the chip is poor, and it cannot perform real-

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  • Data processing computer system for distributed POS (point of sale)
  • Data processing computer system for distributed POS (point of sale)
  • Data processing computer system for distributed POS (point of sale)

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[0019] The specific implementation structure of the technical solution of the present invention is as follows figure 1 As shown, a distributed POS data processing computer system includes two parts: FPGA data input and output module 1 and DSP data processing module 2. FPGA data input and output module 1 includes data input module 3, FPGA minimum subsystem module 4, data output module 5; data input module 3 is connected with FPGA minimum subsystem module 4, data input module 3 is used to complete the main IMU, the first sub Gyro and accelerometer pulse data collection and GPS data reception of IMU and second sub IMU, and sent to FPGA minimum subsystem module 4; FPGA minimum subsystem module 4 is used to complete the main IMU, the first sub IMU and the second sub IMU The gyro and accelerometer pulse data and GPS data are buffered and stored in the data buffer area, and the work process of the entire data processing computer system is managed and scheduled through logic control; th...

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Abstract

The invention relates to a data processing computer system for distributed POS (point of sale). An FPGA (Field Programmable Gate Array) plus six DSPs (Digital Signal Processors) framework scheme is adopted, the data processing computer system comprises an FPGA data input and output module and a DSP data processing module, wherein the FPGA data input and output module carries out pulse data collection and GPS (Global Position System) data receiving on gyros and accelerometers of a primary IMU (Inertial Measurement Unit), a first sub IMU and a second sub IMU, performs data interaction with a monitoring computer, imaging load and a storage module, and is in charge of managing and scheduling the working progress of the whole data processing computer system; and the DSP data processing module adopts a master-slave processor framework of six DSPs of which each two are parallel, three master processors realize time synchronization, IMU error compensation and strapdown resolving; and three slave processors carry out GPS data unpacking, combined filtering and transfer alignment. The data processing computer system for distributed POS (point of sale), and is suitable for high-precision distributed inertia measurement, navigation and integrated navigation system.

Description

technical field [0001] The invention relates to a data processing computer system for distributed POS, which can be applied to distributed POS (Position and Orientation System, position and attitude measurement system), and can also be applied to inertial navigation, inertial / GPS (Global Position System, global positioning system) ) Data processing and navigation calculation of integrated navigation system. Background technique [0002] High-precision POS can provide high-frequency, high-precision time and space reference information for high-resolution aerial remote sensing systems, and improve imaging accuracy and efficiency through motion error compensation. With the increasing demand for high-resolution imaging in aerial remote sensing, new high-efficiency multi-task imaging payload joint imaging technology, long-baseline microwave payload interferometry and array technology have gradually become effective means to improve imaging efficiency and resolution. For the flex...

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Application Information

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IPC IPC(8): G01C21/20
CPCG01C21/16G01C21/165G01C21/20G01S19/49
Inventor 李建利王文建房建成贾黎冬程骏超郭佳桂明臻
Owner BEIHANG UNIV
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