CN202815810U - Data access device - Google Patents
Data access device Download PDFInfo
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- CN202815810U CN202815810U CN201220463796.0U CN201220463796U CN202815810U CN 202815810 U CN202815810 U CN 202815810U CN 201220463796 U CN201220463796 U CN 201220463796U CN 202815810 U CN202815810 U CN 202815810U
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- card reader
- pin
- data access
- controller
- control chip
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Abstract
The utility model is applicable to the field of data processing and provides a data access device. According to the data access device, the data access device comprises a hub controller, a first card reading controller, a second card reading controller, an interface module and a power supply changeover module, the hub controller is used for carrying out data centralized management and transit between a USB (Universal Serial Bus) interface and the first and second card reading controllers, meanwhile, the first card reading controller and the second card reading controller are used for carrying out data conversion between the hub controller and the interface module, and the data access to two storage media of the same type between a computer and the two storage media of the same type can be simultaneously realized, so that the requirements of users on large-quantity data access are met, and the data access efficiency is increased.
Description
Technical field
The utility model belongs to data processing field, relates in particular to a kind of data access arrangement.
Background technology
Development along with science and technology, electronic circuit is increasingly miniaturization also, realize data access whenever and wherever possible for the ease of the user, all kinds of small portable storage mediums arise at the historic moment, such as safe digital storage card (Secure Digital Memory Card, SD), multimedia storage card (Multimedia Card, MMC) and compact flash cards (Compact Flash, CF) etc., most of users store when reading data at needs, normally adopt card reader that single storage medium (for example individual SD card) is carried out data access operation.Yet, if the user need to when carrying out data access in enormous quantities, existing card reader can't satisfy this demand to the storage medium (for example two SD cards) of two same types simultaneously by computer; For existing card reader, the user can only by frequent SD card to realize data access in enormous quantities, so then can reduce data access efficiency.
The utility model content
The purpose of this utility model is to provide a kind of data access arrangement, be intended to solve existing card reader because can't realizing simultaneously that storage medium to two same types carries out data access and can't satisfy the user for the demand of data access in enormous quantities, and reduce the problem of data access efficiency.
The utility model is achieved in that a kind of data access arrangement, comprises USB interface, and described USB interface is carried out data transmission by USB socket and the computer of computer, and described data access arrangement also comprises:
Line concentration controller, the first Card Reader controller, the second Card Reader controller, interface module and power transfer module;
Described line concentration controller is connected with described USB interface, described the first Card Reader controller and described the second Card Reader controller, and described line concentration controller carries out data centralization management and transfer between described USB interface and described the first Card Reader controller and described the second Card Reader controller;
Described the first Card Reader controller is connected with described interface module, and described the first Card Reader controller carries out data-switching between described line concentration controller and described interface module;
Described the second Card Reader controller is connected with described interface module, and described the second Card Reader controller carries out data-switching between described line concentration controller and described interface module;
Described interface module also is connected with described USB interface, and when two of described interface module accesses storage medium of the same type, described interface module provides data access path for described the first Card Reader controller and described the second Card Reader controller;
Described power transfer module is connected with described USB interface, described line concentration controller, described the first Card Reader controller and described the second Card Reader controller, described power transfer module is carried out voltage transitions to the input voltage of described USB interface, and supplies with for described line concentration controller, described the first Card Reader controller and described the second Card Reader controller provide power supply.
In the utility model, in data access arrangement, adopt described line concentration controller, described the first Card Reader controller, described the second Card Reader controller, described interface module and described power transfer module, between described USB interface and described the first Card Reader controller and described the second Card Reader controller, carry out data centralization management and transfer by described line concentration controller, and between described line concentration controller and described interface module, carry out data-switching by described the first Card Reader controller and described the second Card Reader controller simultaneously, can between computer and two storage medium of the same type, realize simultaneously two storage mediums of the same type are carried out data access, thereby satisfied the demand of user for data access in enormous quantities, and improved data access efficiency.
Description of drawings
Fig. 1 is the modular structure figure of the data access arrangement that provides of the utility model embodiment;
Fig. 2 is the exemplary circuit structural drawing of the data access arrangement that provides of the utility model embodiment.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
In the utility model embodiment, in data access arrangement, adopt line concentration controller, the first Card Reader controller, the second Card Reader controller, interface module and power transfer module, between USB interface and the first Card Reader controller and the second Card Reader controller, carry out data centralization management and transfer by line concentration controller, and between line concentration controller and interface module, carry out data-switching by the first Card Reader controller and the second Card Reader controller simultaneously, can between computer and two storage medium of the same type, realize simultaneously two storage mediums of the same type are carried out data access, thereby satisfied the demand of user for data access in enormous quantities, and improved data access efficiency.
Fig. 1 shows the modular structure of the data access arrangement that the utility model embodiment provides, and for convenience of explanation, only shows the part relevant with the utility model, and details are as follows:
Data access arrangement comprises usb 1 00, and usb 1 00 carries out data transmission by USB socket and the computer of computer, and data access arrangement also comprises:
The first Card Reader controller 300 is connected with interface module 500, and the first Card Reader controller 300 carries out data-switching between line concentration controller 200 and interface module 500.
The second Card Reader controller 400 is connected with interface module 500, and the second Card Reader controller 400 carries out data-switching between line concentration controller 200 and interface module 500.
Wherein, the power end of usb 1 00+5V output+5V direct current, earth terminal GND ground connection, USB differential signal anode D+ and USB differential signal negative terminal D-are used for the transmission of data.
Data access arrangement also further comprises:
Be connected with usb 1 00, when usb 1 00 is connected with the USB socket of computer, carry out the access state reminding module 700 of luminous prompting;
Be connected with the first Card Reader controller 300, when the first Card Reader controller 300 when storage medium is carried out data access, carry out the first data access condition prompting module 800 of corresponding luminous prompting according to the data access state;
Be connected with the second Card Reader controller 400, when the second Card Reader controller 400 when storage medium is carried out data access, carry out the second data access condition prompting module 900 of corresponding luminous prompting according to the data access state.
Fig. 2 shows the exemplary circuit structure of the data access arrangement that the utility model embodiment provides, and for convenience of explanation, only shows the part relevant with the utility model, and details are as follows:
As the utility model one embodiment, line concentration controller 200 is GL850A line concentration control chip U1, and the external USB differential signal anode DATA+ of GL850A line concentration control chip U1 and external USB differential signal negative terminal DATA-are connected respectively USB differential signal anode D+ and the USB differential signal negative terminal D-of usb 1 00.
As the utility model one embodiment, the first Card Reader controller 300 is GL827L Card Reader control chip U2, the USB differential signal anode DP of a GL827L Card Reader control chip U2 and differential signal negative terminal DM respectively with the first couple of GL850A line concentration control chip U1 in USB differential signal anode D1+ be connected with USB differential signal negative terminal D1-in first couple.
As the utility model one embodiment, the second Card Reader controller 400 is the 2nd GL827L Card Reader control chip U3, the USB differential signal anode DP of the 2nd GL827L Card Reader control chip U3 and differential signal negative terminal DM respectively with the second couple of GL850A line concentration control chip U1 in USB differential signal anode D2+ be connected with USB differential signal negative terminal D2-in second couple.
As the utility model one embodiment, interface module 500 is an ERNI connector J1, the 6th pin 6 of ERNI connector J1, octal 8, the tenth pin 10, the 12 pin 12, the tenth octal 18, the 22 pin 22 and the 24 pin 24 respectively with the command response end CMD of a GL827L Card Reader control chip U2, the 4th data transmission terminal DAT3, the 3rd data transmission terminal DAT2, earth terminal VSS, clock signal terminal CLK, first data transmission end DAT0 and the second data transmission terminal DAT1 are connected, the 14 pin 14 of ERNI connector J1 and the 15 pin 15 are connected to the power end VDD of a GL827L Card Reader control chip U2 altogether, the 20 pin 20 of ERNI connector J1 connects the power end+5V of usb 1 00, the 31 pin 31 of ERNI connector J1, the 30 tripod 33, the 35 pin 35, the 37 pin 37, the 40 tripod 43, the 47 pin 47 and the 49 pin 49 respectively with the command response end CMD of the 2nd GL827L Card Reader control chip U3, the 4th data transmission terminal DAT3, the 3rd data transmission terminal DAT2, earth terminal VSS, clock signal terminal CLK, first data transmission end DAT0 and the second data transmission terminal DAT1 are connected, the 39 pin 39 of ERNI connector J1 and the 40 pin 40 are connected to the power end VDD of the 2nd GL827L Card Reader control chip U3 altogether, the first pin 1 to the 5th pin 5 of ERNI connector J1, the 7th pin 7, the 9th pin 9, the 11 pin 11, the tenth tripod 13, the 16 pin 16, the 17 pin 17, the 19 pin 19, the 21 pin 21, the 20 tripod 23, the 25 pin the 25 to the 30 pin 30, the 32 pin 32, the 34 pin 34, the 36 pin 36, the 30 octal 38, the 41 pin 41, the 42 pin 42, the 44 pin the 44 to the 46 pin 46, the 40 octal 48, the 50 pin the 50 to the 55 pin 55 and the equal ground connection of the 56 pin SG1 to the 77 pin SG22.
As the utility model one embodiment, power transfer module 600 is DC/DC transducer U4, power end+the 5V of the input termination usb 1 00 of DC/DC transducer U4, the output terminal of DC/DC transducer U4 is connected with the feeder ear VCC of power end VCC, the GL827L Card Reader control chip U2 of GL850A line concentration control chip U1 and the feeder ear VCC of the 2nd GL827L Card Reader control chip U3.DC/DC transducer U4 by the power end+5V to usb 1 00 export+the 5V direct current carries out voltage transitions take output+3.3V direct current as GL850A line concentration control chip U1, GL827L Card Reader control chip U2 and GL827L Card Reader control chip U3 power supply.
As the utility model one embodiment, access state reminding module 700 comprises resistance R 1 and LED 1, power end+the 5V of the first termination usb 1 00 of resistance R 1, the anode of the second termination LED 1 of resistance R 1, the plus earth of LED 1.
As the utility model one embodiment, the first data access condition prompting module 800 comprises resistance R 2, LED 2, resistance R 3 and LED 3, the first end that the first end of resistance R 2 is connected with resistance R connects respectively the first universaling I/O port GPIO1 and the second universaling I/O port GPIO2 of a GL827L Card Reader control chip U2, the anode of the second end of resistance R 2 and the second end of resistance R 3 difference connecting luminous diode LED2 and the anode of LED 3, the negative electrode of the negative electrode of LED 2 and LED 3 is connected to ground altogether.Wherein, LED 2 is green LED, and LED 3 is red light emitting diodes.
As the utility model one embodiment, the second data access condition prompting module 900 comprises resistance R 4, LED 4, resistance R 5 and LED 5, the first end that the first end of resistance R 4 is connected with resistance R connects respectively the first universaling I/O port GPIO1 and the second universaling I/O port GPIO2 of the 2nd GL827L Card Reader control chip U3, the anode of the second end of resistance R 4 and the second end of resistance R 5 difference connecting luminous diode LED4 and the anode of LED 5, the negative electrode of the negative electrode of LED 4 and LED 5 is connected to ground altogether.Wherein, LED 4 is green LED, and LED 5 is red light emitting diodes.
Below in conjunction with principle of work above-mentioned data access arrangement is described further:
When usb 1 00 is connected with the USB socket of computer, enter the first end of resistance R 1 and the input end of DC/DC transducer U4 from the power end of usb 1 00+5V output+5V direct current, then LED 1 obtains power supply and luminous from resistance R 1, simultaneously DC/DC transducer U4 right+output+3.3V direct current makes GL850A line concentration control chip U1 after the 5V direct current carries out voltage transitions, GL827L Card Reader control chip U2 and GL827L Card Reader control chip U3 start working, after the user enters ERNI connector J1 with two SD clampings, the user can send data access command by usb 1 00 to GL850A line concentration control chip U1 by computer, so GL827L Card Reader control chip U2 and GL827L Card Reader control chip U3 begin respectively two SD to be sticked into capable data access.In carrying out the data access process, if data can normally be read or store, then can to send green glow current as normal data access state to represent for LED 2 and LED 4; If can't normally read or store data, then can to send ruddiness current as the abnormal data store status to represent for LED 3 and LED 5, after the user can reconnect SD card and ERNI connector J1 according to this luminous prompting so, proceed again data access.
In the utility model embodiment, in data access arrangement, adopt line concentration controller 200, the first Card Reader controller 300, the second Card Reader controller 400, interface module 500 and power transfer module 600, between usb 1 00 and the first Card Reader controller 300 and the second Card Reader controller 400, carry out data centralization management and transfer by line concentration controller 200, and between line concentration controller 200 and interface module 100, carry out data-switching by the first Card Reader controller 300 and the second Card Reader controller 400 simultaneously, can between computer and two storage medium of the same type, realize simultaneously two storage mediums of the same type are carried out data access, thereby satisfied the demand of user for data access in enormous quantities, and improved data access efficiency.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (8)
1. a data access arrangement comprises USB interface, and described USB interface is carried out data transmission by USB socket and the computer of computer, it is characterized in that described data access arrangement also comprises:
Line concentration controller, the first Card Reader controller, the second Card Reader controller, interface module and power transfer module;
Described line concentration controller is connected with described USB interface, described the first Card Reader controller and described the second Card Reader controller, and described line concentration controller carries out data centralization management and transfer between described USB interface and described the first Card Reader controller and described the second Card Reader controller;
Described the first Card Reader controller is connected with described interface module, and described the first Card Reader controller carries out data-switching between described line concentration controller and described interface module;
Described the second Card Reader controller is connected with described interface module, and described the second Card Reader controller carries out data-switching between described line concentration controller and described interface module;
Described interface module also is connected with described USB interface, and when two of described interface module accesses storage medium of the same type, described interface module provides data access path for described the first Card Reader controller and described the second Card Reader controller;
Described power transfer module is connected with described USB interface, described line concentration controller, described the first Card Reader controller and described the second Card Reader controller, described power transfer module is carried out voltage transitions to the input voltage of described USB interface, and supplies with for described line concentration controller, described the first Card Reader controller and described the second Card Reader controller provide power supply.
2. data access arrangement as claimed in claim 1 is characterized in that, described data access arrangement also comprises:
Be connected with described USB interface, when described USB interface is connected with the USB socket of computer, carry out the access state reminding module of luminous prompting;
Be connected with described the first Card Reader controller, when described the first Card Reader controller when storage medium is carried out data access, carry out the first data access condition prompting module of corresponding luminous prompting according to the data access state;
Be connected with described the second Card Reader controller, when described the second Card Reader controller when storage medium is carried out data access, carry out the second data access condition prompting module of corresponding luminous prompting according to the data access state.
3. data access arrangement as claimed in claim 2, it is characterized in that, described line concentration controller is GL850A line concentration control chip, and the external USB differential signal anode of described GL850A line concentration control chip and external USB differential signal negative terminal are connected respectively USB differential signal anode and the USB differential signal negative terminal of described USB interface.
4. data access arrangement as claimed in claim 3, it is characterized in that, described the first Card Reader controller is a GL827L Card Reader control chip, the USB differential signal anode of a described GL827L Card Reader control chip and differential signal negative terminal respectively with the first couple of described GL850A line concentration control chip in USB differential signal anode be connected with USB differential signal negative terminal in first pair.
5. data access arrangement as claimed in claim 4, it is characterized in that, described the second Card Reader controller is the 2nd GL827L Card Reader control chip, the USB differential signal anode of described the 2nd GL827L Card Reader control chip and differential signal negative terminal respectively with the second couple of described GL850A line concentration control chip in USB differential signal anode be connected with USB differential signal negative terminal in second pair.
6. data access arrangement as claimed in claim 5, it is characterized in that, described interface module is an ERNI connector, the 6th pin of described ERNI connector, octal, the tenth pin, the 12 pin, the tenth octal, the 22 pin and the 24 pin respectively with the command response end of a described GL827L Card Reader control chip, the 4th data transmission terminal, the 3rd data transmission terminal, earth terminal, clock signal terminal, first data transmission end and the second data transmission terminal are connected, the 14 pin of described ERNI connector and the 15 pin are connected to the power end of a described GL827L Card Reader control chip altogether, the 20 pin of ERNI connector connects the power end of described USB interface, the 31 pin of described ERNI connector, the 30 tripod, the 35 pin, the 37 pin, the 40 tripod, the 47 pin and the 49 pin respectively with the command response end of described the 2nd GL827L Card Reader control chip, the 4th data transmission terminal, the 3rd data transmission terminal, earth terminal, clock signal terminal, first data transmission end and the second data transmission terminal are connected, the 39 pin of described ERNI connector and the 40 pin are connected to the power end of described the 2nd GL827L Card Reader control chip altogether, the first pin to the five pin of described ERNI connector, the 7th pin, the 9th pin, the 11 pin, the tenth tripod, the 16 pin, the 17 pin, the 19 pin, the 21 pin, the 20 tripod, the 25 pin to the 30 pin, the 32 pin, the 34 pin, the 36 pin, the 30 octal, the 41 pin, the 42 pin, the 44 pin to the 46 pin, the 40 octal, the 50 pin to the 55 pin and the equal ground connection of the 56 pin to the 77 pin.
7. data access arrangement as claimed in claim 6, it is characterized in that, described power transfer module is a DC/DC transducer, the power end of the described USB interface of input termination of described DC/DC transducer, the output terminal of described DC/DC transducer is connected with the feeder ear of the power end of described GL850A line concentration control chip, a described GL827L Card Reader control chip and the feeder ear of described the 2nd GL827L Card Reader control chip.
8. data access arrangement as claimed in claim 7, it is characterized in that, described access state reminding module comprises resistance R 1 and LED 1, the power end of the described USB interface of the first termination of described resistance R 1, the anode of the described LED 1 of the second termination of described resistance R 1, the plus earth of described LED 1;
Described the first data access condition prompting module comprises resistance R 2, LED 2, resistance R 3 and LED 3, the first end of described resistance R 2 be connected the first end of resistance R 3 and connect respectively the first universaling I/O port and second universaling I/O port of a described GL827L Card Reader control chip, the second end of described resistance R 2 be connected the second end of resistance R 3 and connect respectively the anode of described LED 2 and the anode of described LED 3, the negative electrode of the negative electrode of described LED 2 and described LED 3 is connected to ground altogether;
Described the second data access condition prompting module comprises resistance R 4, LED 4, resistance R 5 and LED 5, the first end of described resistance R 4 be connected the first end of resistance R 5 and connect respectively the first universaling I/O port and second universaling I/O port of described the 2nd GL827L Card Reader control chip, the second end of described resistance R 4 be connected the second end of resistance R 5 and connect respectively the anode of described LED 4 and the anode of described LED 5, the negative electrode of the negative electrode of described LED 4 and described LED 5 is connected to ground altogether.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201220463796.0U CN202815810U (en) | 2012-09-12 | 2012-09-12 | Data access device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201220463796.0U CN202815810U (en) | 2012-09-12 | 2012-09-12 | Data access device |
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CN202815810U true CN202815810U (en) | 2013-03-20 |
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CN201220463796.0U Expired - Lifetime CN202815810U (en) | 2012-09-12 | 2012-09-12 | Data access device |
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CN (1) | CN202815810U (en) |
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2012
- 2012-09-12 CN CN201220463796.0U patent/CN202815810U/en not_active Expired - Lifetime
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20190221 Address after: 518000 Guangzhou Nanshan Nantou Street Pass No. 2 Zhiheng Strategic Emerging Industrial Park, 1 Building and 1 Floor Patentee after: Shenzhen Donika Avionics Co.,Ltd. Address before: 518000 High-tech Industrial Park, Nanshan District, Shenzhen, Guangdong Province (North District) Patentee before: DONICA AVIATION ENGINEERING Co.,Ltd. |
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CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20130320 |