CN107886016A - The data protection system of electronic installation and the application electronic installation - Google Patents
The data protection system of electronic installation and the application electronic installation Download PDFInfo
- Publication number
- CN107886016A CN107886016A CN201610861439.2A CN201610861439A CN107886016A CN 107886016 A CN107886016 A CN 107886016A CN 201610861439 A CN201610861439 A CN 201610861439A CN 107886016 A CN107886016 A CN 107886016A
- Authority
- CN
- China
- Prior art keywords
- storage card
- switch
- controlling switch
- controller
- electronic installation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/0013—Methods or arrangements for sensing record carriers, e.g. for reading patterns by galvanic contacts, e.g. card connectors for ISO-7816 compliant smart cards or memory cards, e.g. SD card readers
- G06K7/0021—Methods or arrangements for sensing record carriers, e.g. for reading patterns by galvanic contacts, e.g. card connectors for ISO-7816 compliant smart cards or memory cards, e.g. SD card readers for reading/sensing record carriers having surface contacts
- G06K7/003—Methods or arrangements for sensing record carriers, e.g. for reading patterns by galvanic contacts, e.g. card connectors for ISO-7816 compliant smart cards or memory cards, e.g. SD card readers for reading/sensing record carriers having surface contacts means for pressing the connector contacts in the direction of the card contacts to assure trustworthy electrical connection between card and connector
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/0013—Methods or arrangements for sensing record carriers, e.g. for reading patterns by galvanic contacts, e.g. card connectors for ISO-7816 compliant smart cards or memory cards, e.g. SD card readers
- G06K7/0086—Methods or arrangements for sensing record carriers, e.g. for reading patterns by galvanic contacts, e.g. card connectors for ISO-7816 compliant smart cards or memory cards, e.g. SD card readers the connector comprising a circuit for steering the operations of the card connector
- G06K7/0091—Methods or arrangements for sensing record carriers, e.g. for reading patterns by galvanic contacts, e.g. card connectors for ISO-7816 compliant smart cards or memory cards, e.g. SD card readers the connector comprising a circuit for steering the operations of the card connector the circuit comprising an arrangement for avoiding intrusions and unwanted access to data inside of the connector
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
- G06K7/0095—Testing the sensing arrangement, e.g. testing if a magnetic card reader, bar code reader, RFID interrogator or smart card reader functions properly
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- Engineering & Computer Science (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Storage Device Security (AREA)
Abstract
A kind of electronic installation, to carry out data transmission with a storage card, including one to output control signal platform courses hub chip;One electronic switch is turned on or off to receive the control signal according to the control signal;One controller, to write data into the storage card;A connector, to write data into the storage card according to the control controller that is turned on or off of the electronic switch or stop writing data to the storage card.The present invention also provides a kind of data protection system, can so avoid damaging data after storage card inserts electronic installation.
Description
Technical field
The present invention relates to a kind of electronic installation and the data protection system of the application electronic installation.
Background technology
Now with the fast development of memory technology, SD storage cards will be used widely in daily life.
However, when the SD card slot grafting of SD storage cards and computer, computer directly can carry out data friendship with the SD storage cards
Change.Virulent SD storage cards insertion computer ought will be particularly carried unintentionally.The data of computer will be caused destroyed, so that
Computer causes irremediable loss.
The content of the invention
In view of the foregoing, it is necessary to a kind of electronic installation that can protect data safety and the application electronics are provided and filled
The data protection system put.
A kind of electronic installation, to carry out data transmission with a storage card, the electronic installation includes:
One platform courses hub chip, to export a control signal;
One electronic switch, the platform courses hub chip is connected, to receive the control signal, and believed according to the control
Number it is turned on or off;
One controller, to write data into the storage card;And
A connector, the electronic switch and controller are connected, to the control institute that is turned on or off according to the electronic switch
Controller is stated to write data into the storage card or stop writing data to the storage card.
Further, the controller includes one first controlling switch, and the connector includes one second controlling switch, institute
Electronic switch is stated to be connected between first controlling switch and second controlling switch;When the electronic switch turns on,
First controlling switch is electrical connected with second controlling switch, and the controller is according to the released state of the storage card
To write data into the storage card.
Further, the second controlling switch of the connector is grounded by a toggle switch, when the storage card is in
During released state, the storage card inserts the connector to cause the toggle switch to close, and second controlling switch is defeated
Go out a low level trigger signal to first controlling switch, the controller to write data into the storage card.
Further, the electronic installation also includes a basic input output system, the basic output output system root
According to the operation of user to export corresponding instruction to the platform courses hub chip, to control the platform courses hub chip
Control signal corresponding to output.
A kind of data protection system, the data protection system include an electronic installation and a storage card, the electronics dress
Put for carrying out data transmission with the storage card, the electronic installation includes:
One platform courses hub chip, to export a control signal;
One electronic switch, the platform courses hub chip is connected, to receive the control signal, and believed according to the control
Number it is turned on or off;
One controller, to write data into the storage card;And
A connector, the electronic switch and controller are connected, to the control institute that is turned on or off according to the electronic switch
Controller is stated to write data into the storage card or stop writing data to the storage card.
Further, the controller includes one first controlling switch, and the connector includes one second controlling switch, institute
Electronic switch is stated to be connected between first controlling switch and second controlling switch;When the electronic switch turns on,
First controlling switch is electrical connected with second controlling switch, and the controller is according to the released state of the storage card
To write data into the storage card.
Further, the second controlling switch of the connector is grounded by a toggle switch, when the storage card is in
During released state, the storage card inserts the connector to cause the toggle switch to close, and second controlling switch is defeated
Go out a low level trigger signal to first controlling switch, the controller to write data into the storage card.
Further, the electronic installation also includes a basic input output system, the basic output output system root
According to the operation of user to export corresponding instruction to the platform courses hub chip, to control the platform courses hub chip
Control signal corresponding to output.
Further, the electronic switch is a FET, the first end of the electronic switch, the second end and the 3rd end
Correspond respectively to grid, drain electrode and the source electrode of the FET.
The data protection system of above-mentioned electronic installation and the application electronic installation passes through the platform courses hub chip
Control electronic switch is turned on or off, and whether the connector will according to the control controller that is turned on or off of electronic switch
Data are write in the storage card.It can so be selected according to the use demand of user when inserting storage card without data
Exchange, avoid damaging data after storage card inserts electronic installation.
Brief description of the drawings
Fig. 1 is the schematic diagram of a better embodiment of data protection system.
Fig. 2 is the circuit diagram of the better embodiment of electronic installation in Fig. 1.
Main element symbol description
Electronic installation | 100 |
PCH chips | 10 |
Controller | 20 |
Connector | 30 |
Storage card | 200 |
Sliding block | 210 |
Electronic switch | Q1 |
Resistance | R1 |
Following embodiment will combine above-mentioned accompanying drawing and further illustrate the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out, it is clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below with reference to accompanying drawing and embodiment party
Formula, is described in further detail and related description to the electronic installation in the present invention.
As shown in figure 1, a kind of data protection system includes an electronic installation 100 and a storage card 200.The electronic installation
100 are connected to the storage card 200, and enter row data communication with the storage card 200.
The storage card 200 is provided with a sliding block 210, and the sliding block 210 can be from a first position and a second place
Move back and forth.
As shown in Fig. 2 the electronic installation 100 includes a basic input output system(It is not shown), in a platform courses
Pivot(Platform Controller Hub, PCH)Chip 10, a controller 20, the electronic switch Q1 of a connector 30 and one.
The universal input output pin GPIO of the PCH chips 10 is connected to a power supply 3P3V_AUX by a resistance R1,
The universal input output pin GPIO of the PCH chips 10 is additionally coupled to the first end of the electronic switch Q1.The electronic cutting
Close Q1 the second end be connected to the controller 20 controlling switch SD_WP, the electronic switch Q1 three-terminal link to institute
State the controlling switch CONN_WP of connector 30.The data pin SD_DATA of the controller 20 is connected to the connector 30
Data pin CONN_DATA, the controlling switch CONN_WP of the connector 30 are also grounded by a toggle switch(It is not shown).
When the sliding block 210 is struck to first position, the sliding block 210 will touch dialling in the connector 30
Dynamic switch closure, to cause the controlling switch CONN_WP of the connector 30 to be grounded.
When the sliding block 210 is struck to the second place, the sliding block 210 will not be touched in the connector 30
Toggle switch, the toggle switch are off, to cause the controlling switch CONN_WP of the connector 30 earth-free.
The basic input output system is producing a control instruction to the PCH chips 10.
The PCH chips 10 receive the control instruction that the basic input output system is transmitted, and according to being received
Control signal corresponding to control instruction output.
The electronic switch Q1 receives the control signal that the PCH chips 10 are exported, and is believed according to the control received
Number between the controlling switch SD_WP of controller 20 described on or off and the controlling switch CONN_WP of the connector 30
Connection.
The controller 20 is according to the level state of the controlling switch SD_WP to deposit described in judging whether to write data into
Card storage 200.Wherein, the controlling switch SD_WP of the controller 20 is in high level state by default.
In one embodiment, the electronic switch Q1 is a FET, the first end of the electronic switch Q1, the second end
And the 3rd end correspond respectively to grid, drain electrode and the source electrode of the FET.
The operation principle of data protection system is described in detail below:
When the basic input output system output control is instructed to control the one low level control of the output of PCH chips 10 to believe
During number to the electronic switch Q1, electronic switch Q1 cut-off, to disconnect the controlling switch SD_WP of the controller 20 and institute
State the connection between the controlling switch CONN_WP of connector 30.The controlling switch SD_WP of the controller 20 is by default
In high level state.Now, the storage card 200 is inserted into the connector 30, the controller 20 will not write data
Enter the storage card 200.When the basic input output system output control is instructed to control the output one of PCH chips 10 high
When the control signal of level is to the electronic switch Q1, the electronic switch Q1 conductings, to realize the control of the controller 20
Connection between pin SD_WP and the controlling switch CONN_WP of the connector 30.
The storage card 200 is inserted into the connector 30, and causes the sliding block 210 of the storage card 200 to dial to the
One position, the sliding block 210 touches the toggle switch closure in the connector 30, to cause the control of the connector 30 to draw
Pin CONN_WP is grounded to export a low level trigger signal to the controlling switch SD_WP of the controller 20, the controller
20 controlling switch SD_WP is in low level state.Now, the controller 20 writes data into the storage card 200.
When causing the sliding block 210 of the storage card 200 to dial to the second place, the sliding block 210 will not touch institute
The toggle switch closure in connector 30 is stated, the controlling switch SD_WP of the controller 20 is in high level state.Now, institute
The storage card 200 will not be write data into by stating controller 20.
The data protection system of above-mentioned electronic installation and the application electronic installation is by controlling the PCH chips 10 to export
Corresponding control signal to control the electronic switch Q1 to end, with the corresponding controlling switch for disconnecting the controller 20 with it is described
Connection between connector 30.In this way, when the storage card 200 inserts the connector 30, the electronic installation 100 will not
The storage card 200 is write data into, avoids electronic installation by unnecessary damage.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although reference
The present invention is described in detail for preferred embodiment, it will be understood by those within the art that, can be to the present invention's
Technical scheme is modified or equivalent substitution, without departing from the spirit and scope of technical solution of the present invention.
Claims (9)
- A kind of 1. electronic installation, to carry out data transmission with a storage card, it is characterised in that the electronic installation includes:One platform courses hub chip, to export a control signal;One electronic switch, the platform courses hub chip is connected, to receive the control signal, and believed according to the control Number it is turned on or off;One controller, to write data into the storage card;AndA connector, the electronic switch and controller are connected, to the control institute that is turned on or off according to the electronic switch Controller is stated to write data into the storage card or stop writing data to the storage card.
- 2. electronic installation as claimed in claim 1, it is characterised in that the controller includes one first controlling switch, described Connector includes one second controlling switch, and the electronic switch is connected to first controlling switch and second controlling switch Between;When the electronic switch turns on, first controlling switch is electrical connected with second controlling switch, the control Device is write data into the storage card according to the released state of the storage card.
- 3. electronic installation as claimed in claim 2, it is characterised in that the second controlling switch of the connector is stirred by one Switch ground connection, when the storage card is in released state, the storage card inserts the connector to cause described stir out Close and close, second controlling switch exports a low level trigger signal to first controlling switch, the controller will Data are write in the storage card.
- 4. electronic installation as claimed in claim 1, it is characterised in that the electronic installation also includes a basic input and output system System, the basic output output system are instructed to the platform courses hub chip according to corresponding to the operation of user output, with Control control signal corresponding to the platform courses hub chip output.
- 5. a kind of data protection system, it is characterised in that the data protection system includes an electronic installation and a storage card, institute State electronic installation to be used to carry out data transmission with the storage card, the electronic installation includes:One platform courses hub chip, to export a control signal;One electronic switch, the platform courses hub chip is connected, to receive the control signal, and believed according to the control Number it is turned on or off;One controller, to write data into the storage card;AndA connector, the electronic switch and controller are connected, to the control institute that is turned on or off according to the electronic switch Controller is stated to write data into the storage card or stop writing data to the storage card.
- 6. data protection system as claimed in claim 5, it is characterised in that the controller includes one first controlling switch, The connector includes one second controlling switch, and the electronic switch is connected to first controlling switch and second control Between pin;When the electronic switch turns on, first controlling switch is electrical connected with second controlling switch, described Controller is according to the released state of the storage card to write data into the storage card.
- 7. data protection system as claimed in claim 6, it is characterised in that the second controlling switch of the connector passes through one Toggle switch is grounded, and when the storage card is in released state, the storage card inserts the connector to cause described dial Dynamic switch closure, second controlling switch export a low level trigger signal to first controlling switch, the control Device is write data into the storage card.
- 8. data protection system as claimed in claim 5, it is characterised in that the electronic installation also inputs defeated substantially including one Go out system, the basic output output system is instructed to the platform courses maincenter core according to corresponding to the operation of user output Piece, to control control signal corresponding to the platform courses hub chip output.
- 9. data protection system as claimed in claim 7, it is characterised in that the electronic switch is a FET, described The first end of electronic switch, the second end and the 3rd end correspond respectively to grid, drain electrode and the source electrode of the FET.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610861439.2A CN107886016A (en) | 2016-09-29 | 2016-09-29 | The data protection system of electronic installation and the application electronic installation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201610861439.2A CN107886016A (en) | 2016-09-29 | 2016-09-29 | The data protection system of electronic installation and the application electronic installation |
Publications (1)
Publication Number | Publication Date |
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CN107886016A true CN107886016A (en) | 2018-04-06 |
Family
ID=61769718
Family Applications (1)
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CN201610861439.2A Pending CN107886016A (en) | 2016-09-29 | 2016-09-29 | The data protection system of electronic installation and the application electronic installation |
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CN (1) | CN107886016A (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2609073Y (en) * | 2003-03-28 | 2004-03-31 | 群联电子股份有限公司 | Card slot switching device of commutating card |
CN101740105A (en) * | 2008-11-24 | 2010-06-16 | 联发科技股份有限公司 | System and method for accessing memory card |
US7836236B2 (en) * | 2004-02-12 | 2010-11-16 | Super Talent Electronics, Inc. | Extended secure-digital (SD) devices and hosts |
CN102043933A (en) * | 2009-10-21 | 2011-05-04 | 深圳Tcl新技术有限公司 | SD (Secure Digital) card reader module with controllable operating state |
CN104008079A (en) * | 2014-05-29 | 2014-08-27 | 广州视源电子科技股份有限公司 | Data read-write circuit capable of being simultaneously inserted into SD card and TF card |
CN104679699A (en) * | 2013-11-26 | 2015-06-03 | 英业达科技有限公司 | Electronic device |
-
2016
- 2016-09-29 CN CN201610861439.2A patent/CN107886016A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2609073Y (en) * | 2003-03-28 | 2004-03-31 | 群联电子股份有限公司 | Card slot switching device of commutating card |
US7836236B2 (en) * | 2004-02-12 | 2010-11-16 | Super Talent Electronics, Inc. | Extended secure-digital (SD) devices and hosts |
CN101740105A (en) * | 2008-11-24 | 2010-06-16 | 联发科技股份有限公司 | System and method for accessing memory card |
CN102043933A (en) * | 2009-10-21 | 2011-05-04 | 深圳Tcl新技术有限公司 | SD (Secure Digital) card reader module with controllable operating state |
CN104679699A (en) * | 2013-11-26 | 2015-06-03 | 英业达科技有限公司 | Electronic device |
CN104008079A (en) * | 2014-05-29 | 2014-08-27 | 广州视源电子科技股份有限公司 | Data read-write circuit capable of being simultaneously inserted into SD card and TF card |
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WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180406 |
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WD01 | Invention patent application deemed withdrawn after publication |