CN205792628U - A kind of new network digital photo frame - Google Patents

Abstract

The utility model discloses a kind of new network digital photo frame, including core processor, serial port module, ethernet module, audio-frequency module, LCD module and power module, serial port module is connected with core processor by RS232 electric pressure converter, ethernet module is connected with core processor by isolating transformer, audio-frequency module is connected with controlling bus by audio data bus, and core processor is also connected with power module and LCD module.This new network digital photo frame, ARM series core plate is used to develop, use 256MB Nand Flash, 2MB Nor Flash storage device, with 64MB SDRAM, base plate uses DM9000 Ethernet chip and PC network communication, use UDA1341TS to play audio frequency, and provide serial ports for system debug；Transplanting uboot, cutting (SuSE) Linux OS, support and carry out between PC FTP communication, plurality of picture form, Text Mode, audio frequency broadcasting, simple in construction, low cost, speed is fast.

Description

A kind of new network digital photo frame

Technical field

This utility model relates to digital photo frame technical field, is specially a kind of new network digital photo frame.

Background technology

21 century, the Internet and electronic product bring great variety to the life of people.2000 start, and the Internet enters Enter 10 years developed rapidly, drive a ripple development climax of PC.Then, embedded device starts to step into the visual field of people, embedding Enter that formula equipment volume is small and exquisite, energy consumption is low, degree of stability is high, low price, function are with strong points, quickly receive the green grass or young crops of consumer Look at.Digital photo frame, as the embedded device of a kind of special display image, has many application in life, production, but current Digital photo frame is applied to family outlook and sees photograph, uses USB flash disk or SD card as the storage source of data, needs frequent updating data Time, shirtsleeve operation also becomes loaded down with trivial details, spends substantial amounts of manpower and time, is unfavorable for the centralized management of enterprise.

Utility model content

For problem above, this utility model provides a kind of new network digital photo frame, can effectively solve background skill Problem in art.

A kind of new network digital photo frame, including core processor, serial port module, ethernet module, audio-frequency module, LCD Module and power module, described serial port module is connected with core processor by RS232 electric pressure converter, described ethernet module Being connected with core processor by isolating transformer, described audio-frequency module is connected with controlling bus by audio data bus, institute State core processor to be also connected with power module and LCD module.

Described serial port module includes serial communication circuit, and serial communication circuit uses SP3232EEN chip, SP3232EEN The C1+ end of chip connects the one end having the first electric capacity C1, the other end of the first electric capacity C1 and the C1-end of SP3232EEN chip, SP3232EEN chip C2+ end connects the one end having the second electric capacity C2, the other end of the second electric capacity C2 and SP3232EEN chip C2-end, the R1IN end of SP3232EEN chip, R2IN end, T1OUT end, T2OUT end respectively at 3 ends of DB serial ports, 7 ends, 2 ends, 8 End, the vdd terminal of SP3232EEN chip connects 3.3V voltage, and the GND end of SP3232EEN chip connects holds GND with having.

As a kind of preferably technical scheme of this utility model, described core processor uses embedded S3C2440A core Sheet, the external harmoniousness of core processor has SDRAM, Nand flash and Nor flash storage chip.

As a kind of preferably technical scheme of this utility model, described LCD module uses touch LCD screen, and LCD module Carry ad/da converter and realize data acquisition and simulation output.

As a kind of preferably technical scheme of this utility model, described power module uses AMS1085CM-3.3 chip, electricity Source module provides maximum 3A operating current, the line regulation of 0.31% and the load regulation of 0.015%.

Compared with prior art, the beneficial effects of the utility model are: this new network digital photo frame, use ARM series Core board is developed, this core board use 256MB Nand Flash, 2MB Nor Flash as storage device, and with 64MB SDRAM, base plate uses DM9000 Ethernet chip and PC to carry out network service, uses UDA1341TS to play audio frequency, and There is provided serial ports for system debug；Transplant uboot, cutting (SuSE) Linux OS, use cross-platform graphic interface tool Qt to be Operating system makes the most easy-to-use interactive interface, support and carry out between PC FTP communication, plurality of picture form, Text Mode, Audio frequency is play, simple in construction, low cost, and hardware decoding makes speed generally ratio comparatively fast.

Accompanying drawing explanation

Fig. 1 is this utility model structural principle block diagram；

Fig. 2 is this utility model serial communication circuit figure；

In figure: 1-core processor；2-serial port module；3-ethernet module；4-audio-frequency module；5-LCD module；6-power supply Module；7-RS232 electric pressure converter；8-isolating transformer；9-audio data bus；10-controls bus；11-serial communication electricity Road.

Detailed description of the invention

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out Clearly and completely describe.

Referring to Fig. 1 and Fig. 2, a kind of new network digital photo frame, including core processor 1, serial port module 2, Ethernet Module 3, audio-frequency module 4, LCD module 5 and power module 6, described serial port module 2 is passed through at RS232 electric pressure converter 7 and core Reason device 1 is connected, and described ethernet module 3 is connected with core processor 1 by isolating transformer 8, and described audio-frequency module 4 passes through sound Frequently data/address bus 9 is connected with controlling bus 10, and described core processor 1 is also connected with power module 6 and LCD module 5.

Described serial port module 2 includes that serial communication circuit 11, serial communication circuit 11 use SP3232EEN chip, The C1+ end of SP3232EEN chip connects the one end having the first electric capacity C1, the other end of the first electric capacity C1 and SP3232EEN chip C1-end, SP3232EEN chip C2+ end connects one end of the second electric capacity C2, the other end of the second electric capacity C2 with The C2-end of SP3232EEN chip, the R1IN end of SP3232EEN chip, R2IN end, T1OUT end, T2OUT end are respectively at DB serial ports 3 ends, 7 ends, 2 ends, 8 ends, the vdd terminal of SP3232EEN chip connects 3.3V voltage, and the GND end of SP3232EEN chip connects Hold GND, described core processor 1 to use embedded S3C2440A chip with having, the external harmoniousness of core processor 1 have SDRAM, Nand flash and Nor flash storage chip, described LCD module 5 uses touch LCD screen, and LCD module 5 carries AD/DA Transducer realizes data acquisition and simulation output, and described power module 6 uses AMS1085CM-3.3 chip, power module 6 to provide Maximum 3A operating current, the line regulation of 0.31% and the load regulation of 0.015%.

Operation principle of the present utility model: this new network digital photo frame, electrifying startup digital photo frame, enters into mastery routine Interface, mastery routine interface is the control interface of whole program, shoulders picture, text importing function, being presented herein below of picture simultaneously The operations such as control knob, can switch over image, scaling, rotation, when design, are dock by Image to right tabular design Widget, double-clicks the file in just list, can show in LCD module 5 picture viewing area, can carry out list on screen Drag and drop, click " text " mode button, enter Text Mode, and main window switches to Text Mode, the file of display in list box It is updated to text list the most therewith, double-clicks the specific items in list, it is achieved the switching between file, the language that can select with highlighted user Sentence, to give top priority to what is the most important when reading, after starting digital photo frame, deposits the song under song catalog, by them by detection automatically It is processed as after list of songs file music.lst for MPlayer player, clicks " transmission " in main interfaces windows and press Button, enters into FTP network transport interface, it can be seen that two catalogues depositing file, and double-click can enter into next stage catalogue, Select the file needing to download, click download button and manually download, it is also possible to enable automatically updating function, automatically download new Data.

Claims (4)

1. a new network digital photo frame, including core processor (1), serial port module (2), ethernet module (3), audio frequency mould Block (4), LCD module (5) and power module (6), it is characterised in that: described serial port module (2) passes through RS232 electric pressure converter (7) being connected with core processor (1), described ethernet module (3) is connected with core processor (1) by isolating transformer (8), Described audio-frequency module (4) by audio data bus (9) and control bus (10) be connected, described core processor (1) also with electricity Source module (6) is connected with LCD module (5)；Described serial port module (2) includes serial communication circuit (11), serial communication circuit (11) using SP3232EEN chip, the C1+ end of SP3232EEN chip connects the one end having the first electric capacity (C1), the first electric capacity (C1) the other end and the C1-end of SP3232EEN chip, SP3232EEN chip C2+ end connects the one of the second electric capacity (C2) End, the other end of the second electric capacity (C2) and the C2-end of SP3232EEN chip, the R1IN end of SP3232EEN chip, R2IN end, T1OUT end, T2OUT end are respectively at 3 ends of DB serial ports, 7 ends, 2 ends, 8 ends, and the vdd terminal of SP3232EEN chip connects 3.3V electricity Pressure, the GND end of SP3232EEN chip connects to be held (GND) with having.

A kind of new network digital photo frame the most according to claim 1, it is characterised in that: described core processor (1) is adopted With embedded S3C2440A chip.

A kind of new network digital photo frame the most according to claim 1, it is characterised in that: described LCD module (5) uses to be touched Touch liquid crystal display screen.

A kind of new network digital photo frame the most according to claim 1, it is characterised in that: described power module (6) uses AMS1085CM-3.3 chip.