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Navigation computer board based on FPGA and DSP

A technology of navigation computer and board card, applied in the field of navigation computer, can solve the problems of high complexity, difficult to control volume, large size of inertial navigation equipment, etc., and achieve the effect of small size, simplified hardware structure, and simple overall structure

Pending Publication Date: 2022-02-22
CHONGQING HUAYU ELECTRIC GRP
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Problems solved by technology

[0002] With the development of science and technology, the requirements for inertial navigation systems in various industries are getting higher and higher; the hardware structure of traditional navigation equipment adopts the structure of IF board, power supply board, navigation computer board, and navigation bottom board, which is complex and difficult to control in volume, and It is necessary to add MCU to process and convert data, which makes the existing inertial navigation equipment larger in size and higher in cost

Method used

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  • Navigation computer board based on FPGA and DSP

Examples

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Embodiment

[0017] Example: see figure 1 A navigation computer board based on FPGA and DSP includes a circuit board on which an FPGA module, a DSP module, a peripheral interface circuit and a power supply circuit are integrated.

[0018] The DSP module is connected to the FPGA module through the EMIF interface; thereby realizing data communication, and providing hardware interfaces such as RS-422 and Ethernet through the FPGA module. Wherein, the DSP module includes a CPU core, on-chip peripheral circuits and a two-level Cache system. Specifically, the CPU core adopts an eight-outlet ultra-long instruction word structure, and the whole is mapped to the storage space as an SRAM; in order to reduce power consumption, it adopts a dual power supply scheme, which can output 4 power supplies in parallel. The core power supply of the DSP chip needs 1.2V, and the power supply of the DSP peripheral circuit is 3.3V, mainly for the IO power supply of the DSP; secondly, the DSP needs to design a clo...

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Abstract

The invention discloses a navigation computer board based on an FPGA (Field Programmable Gate Array) and a DSP (Digital Signal Processor). The navigation computer board comprises a circuit board on which an FPGA module, a DSP module, a peripheral interface circuit and a power supply circuit are integrated; the DSP module is connected with the FPGA module through an EMIF interface. The peripheral interface circuit comprises a serial port communication circuit and a board card connector, and the peripheral circuit of the FPGA module is connected with the board card connector through the serial port communication circuit; and the power supply circuit is also connected with the board card connector, and meanwhile, the power supply circuit supplies power to the FPGA module and the DSP module. The circuit structure of the whole navigation computer board can be simplified, the equipment size is reduced, meanwhile, the operation efficiency can be effectively improved, and the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of navigation computers, in particular to a navigation computer board based on FPGA and DSP. Background technique [0002] With the development of science and technology, the requirements for inertial navigation systems in various industries are getting higher and higher; the hardware structure of traditional navigation equipment adopts the structure of IF board, power supply board, navigation computer board, and navigation bottom board, which is complex and difficult to control in volume, and It is necessary to add an MCU to process and convert data, which makes the existing inertial navigation equipment larger in size and higher in cost. Contents of the invention [0003] For the above-mentioned deficiency that prior art exists, the purpose of the present invention is to provide a kind of navigation computer board based on FPGA and DSP, can simplify the circuit structure of whole navigation computer boar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042
CPCG05B19/0423G05B2219/25257
Inventor 刘熙文黄国松苏柳莫兰俊
Owner CHONGQING HUAYU ELECTRIC GRP
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