CN204855793U - Marine navigation radar shows accuse processing unit based on OMAP4460 - Google Patents

Abstract

The utility model provides a marine navigation radar shows accuse processing unit based on OMAP4460, including OMAP4460 processor module, OMAP4460 processor module connects interface module, signal detection module, shows processing module and serial port expansion module, interface module connects the radar front end, the signal of radar front end loop through interface module, signal detection module and show processing module carry with show the display that processing module links to each other on, the serial port expansion module is connected to outside navigation equipment. The utility model relates to a rationally, simple structure, through adopting OMAP4460, FPGA chip, display control, its low -power consumption simultaneously, the low -cost characteristics that can realize navigation radar wide application in the marine navigation radar field of being convenient for.

Description

Based on the marine navigation radar aobvious control processing unit of OMAP4460

Technical field

The utility model relates to a kind of marine radar field of navigation technology, particularly a kind of marine navigation radar based on OMAP4460 aobvious control processing unit.

Background technology

Possess the feature of high-performance, in real time process and super low-power consumption based on OMAP (OMAP) processor, be widely used in the fields such as PDA, Web notepad, telecommunication, medicine equipment at present.Marine navigation radar display terminal, due to its working environment, technical development and low cost requirement, facilitates the technology application of OMAP processor in marine navigation radar display field.OMAP4460 processor is a low-Power Multicore processor of TI company exploitation, and inside possesses 2 Cortex-A91.5GHzARM processors, 1 460MHzC64+DSP processor, 2 Cortex-M3168MHzARM processors.Its special platform architecture and powerful processing power be marine navigation radar show control processing unit exploitation provide guarantee.

Utility model content

Utility model object: technical problem to be solved in the utility model is for the deficiencies in the prior art, provides a kind of marine navigation radar based on OMAP4460 aobvious control processing unit.

In order to solve the problems of the technologies described above, the utility model provides a kind of marine navigation radar based on OMAP4460 aobvious control processing unit, comprise OMAP4460 processor module, described OMAP4460 processor module connection interface module, signal detection module, Graphics Processing module and serial ports expansion module, described interface module connects radar front end, the signal of radar front end is transported to by interface module, signal detection module and Graphics Processing module on the display that is connected with Graphics Processing module successively, and described serial ports expansion model calling is to external navigation equipment.

In the utility model, described interface module comprises interface conversion circuit, front-end controlling circuit and bus decoding control circuit; Interface conversion circuit connects radar front end and front-end controlling circuit respectively, front-end controlling circuit connects bus decoding control circuit and signal detection module respectively, and bus decoding control circuit connects OMAP4460 processor module, signal detection module, Graphics Processing module and serial ports expansion module simultaneously.。

In the utility model, described Graphics Processing module comprises display input/output interface circuit, synthesis display treatment circuit and display translation interface circuit.

In the utility model, described serial ports expansion module comprises bus decoding control circuit and serial expanded circuit.

Beneficial effect: the utility model is reasonable in design, structure is simple, by adopting OMAP4460, fpga chip, can realize the display and control of navar, its low-power consumption simultaneously, low cost feature be convenient to be widely used in marine navigation radar field.

Innovative point of the present utility model is the Structure composing of hardware, does not relate to the improvement of any software.Those skilled in the art adopt existing software in conjunction with hardware modifications of the present invention, namely can realize the purpose of this utility model, solve the problem of the prior art that the utility model proposes.

Accompanying drawing explanation

To do the utility model below in conjunction with the drawings and specific embodiments and further illustrate, above-mentioned or otherwise advantage of the present utility model will become apparent.

Fig. 1 is marine navigation radar aobvious control processing unit system assumption diagram;

Fig. 2 is OMAP4460 processor module composition frame chart;

Fig. 3 is interface module composition frame chart.

Embodiment

Below in conjunction with accompanying drawing, the utility model is elaborated.

As Fig. 1, the utility model aobvious control processing unit 1 comprises interface module 2, signal detection module 3, Graphics Processing module 4, serial ports expansion module 5 and OMAP4460 processor module 6, wherein OMAP4460 processor module 6 connection interface module 2, signal detection module 3, Graphics Processing module 4 and serial ports expansion module 5, interface module 2 connects radar front end, the signal of radar front end is transported to by interface module 2, signal detection module 3 and Graphics Processing module 4 on the display that is connected with Graphics Processing module 4 successively, and serial ports expansion module 5 is connected to external navigation equipment.Interface module 2 comprises interface conversion circuit, front-end controlling circuit and bus decoding control circuit; Interface conversion circuit connects radar front end and front-end controlling circuit respectively, front-end controlling circuit connects bus decoding control circuit and signal detection module 3 respectively, bus decoding control circuit connects OMAP4460 processor module 6, signal detection module 3, Graphics Processing module 4 and serial ports expansion module 5 simultaneously, and serial ports expansion module 5 comprises bus decoding control circuit and serial expanded circuit.

As Fig. 2, the OMAP4460 processor module that the utility model is selected comprises polycaryon processor, the LPDDR2 internal memory of electric power management circuit and expansion, eMMC flash memory, WIFI module, USBHub and USB network card composition, and OMAP4460 processor module mainly realizes the functions such as navar information displaying, man-machine interaction and radar manipulation.Electric power management circuit is in charge of OMAP4460 electric sequence and is controlled, shutdown, the electric control of dormancy constant pitch.

LPDDR2 storer is low-power consumption dynamic storage, adopts PoP packaging technology, is directly welded on OMAP4460 chip top, can reduces pcb board design size, improves internal storage access performance.Simultaneous processor module is integrated WIFI module of knowing clearly, 4GBeMMC flash memory particle, SD card slot also, 2 tunnel USB interface and 1 road 10/100Mbps Ethernet interface.

As Fig. 3, interface module 2 forms primarily of interface conversion circuit, front-end control and bus decoding scheme.Interface module 2 mainly processes the input of navar front end, gives signal detection module 3 and processes further.Interface conversion circuit primary responsibility carries out level conversion and AD, DA conversion to the interface signal that radar front end inputs.Wherein the vision signal through level match can be carried out conversion and given FPGA by AD converter.Main chip adopts the modulus conversion chip of LINEAR company 80MHz sample frequency, and its digital interface can compatible FPGA level.DA chip, selects the product of AD company, and the digital signal that tuning operation circuit exports is converted to analog voltage by primary responsibility, then produces the suitable level signal of radar transmit-receive unit needs by amplifier.

Front-end controlling circuit realizes in FPGA inside, is responsible for carrying out pre-service to radar video, orientation, triggering before input, controls simultaneously to radar front end tuning voltage.Mainly comprise and trigger generation module, tuning control module, video selection module and orientation, stem signal test and conversion module.

Bus decoding control circuit realizes in FPGA inside, is responsible for the bus interface producing FPGA and OMAP4460, according to the read-write sequence of bus, can visit the register of FPGA inside and the register of serial ports expansion module by controlling chip selection signal.

Graphics Processing module 4 is primarily of display input/output interface circuit, synthesis display treatment circuit and display translation interface circuit composition, and synthesis display treatment circuit is realized by FPGA.The computer graphical of OMAP4460 processor module 6 and radar video signal combine by Graphics Processing module 4, realize radar video and show on a display screen.

Display input interface circuit is a level shifting circuit, mainly by the graphics video signal of OMAP4460 processor module, is input in FPGA after level shifting circuit.Display translation interface circuit mainly comprises display interface chip, can realize VGA, DVI and LVDS video display translation.

Synthesis display treatment circuit is realized by FPGA.

The utility model provides a kind of marine navigation radar based on OMAP4460 aobvious control processing unit; the method and access of this technical scheme of specific implementation is a lot; the above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.The all available prior art of each ingredient not clear and definite in the present embodiment is realized.

Claims (4)

1. the aobvious control of the marine navigation radar based on an OMAP4460 processing unit, it is characterized in that, comprise OMAP4460 processor module (6), described OMAP4460 processor module (6) is connection interface module (2) respectively, signal detection module (3), Graphics Processing module (4) and serial ports expansion module (5), described interface module (2) connects outside radar front end, the signal of radar front end is successively by interface module (2), signal detection module (3) and Graphics Processing module (4) are transported on the display of the outside be connected with Graphics Processing module (4), described serial ports expansion module (5) is connected to outside navigator.

2. a kind of marine navigation radar based on OMAP4460 according to claim 1 aobvious control processing unit, it is characterized in that, described interface module (2) comprises interface conversion circuit, front-end controlling circuit and bus decoding control circuit; Interface conversion circuit connects radar front end and front-end controlling circuit respectively, front-end controlling circuit connects bus decoding control circuit and signal detection module (3) respectively, and bus decoding control circuit connects OMAP4460 processor module (6), signal detection module (3), Graphics Processing module (4) and serial ports expansion module (5) simultaneously.

3. a kind of marine navigation radar based on OMAP4460 according to claim 1 aobvious control processing unit, it is characterized in that, described Graphics Processing module (4) comprises display input/output interface circuit, synthesis display treatment circuit and display translation interface circuit.

4. a kind of marine navigation radar based on OMAP4460 according to claim 1 aobvious control processing unit, it is characterized in that, described serial ports expansion module (5) comprises bus decoding control circuit and serial expanded circuit.