CN106445844A - Data protection method and device for expansion card - Google Patents
Data protection method and device for expansion card Download PDFInfo
- Publication number
- CN106445844A CN106445844A CN201611055604.1A CN201611055604A CN106445844A CN 106445844 A CN106445844 A CN 106445844A CN 201611055604 A CN201611055604 A CN 201611055604A CN 106445844 A CN106445844 A CN 106445844A
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- Prior art keywords
- data
- draw
- expansion card
- groove
- signal processing
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Links
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000001939 inductive effect Effects 0.000 claims description 10
- 230000005611 electricity Effects 0.000 claims description 2
- 230000001960 triggered effect Effects 0.000 abstract 1
- 238000004321 preservation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/16—Protection against loss of memory contents
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/78—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data
- G06F21/79—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data in semiconductor storage media, e.g. directly-addressable memories
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Software Systems (AREA)
- Storage Device Security (AREA)
- Power Sources (AREA)
Abstract
The invention discloses a data protection method and device for an expansion card. The data protection method comprises the steps that in an equipment work state, a card slot opening signal is received; data cache is stopped; cached data is written in the storage space of the expansion card; a power-off instruction is sent to power off an equipment power source. In the equipment work state, the card slot opening signal can be triggered when a user opens a card slot, equipment makes response to the signal, data cache is stopped, the cached data is written in the storage space of the expansion card, and the power-off instruction is sent to power off the equipment power source. Before the user takes out the expansion card, it is guaranteed that the cached data is correctly written in the expansion card, the equipment is powered off, and data damage and loss caused by card taking are avoided.
Description
Technical field
The present invention relates to electronic equipment expansion card technical field, more particularly, to a kind of data guard method of expansion card and dress
Put.
Background technology
At present, the hot plug of expansion card all supported by most electronic equipment, inserts or pull out expansion in the energized state
Zhan Ka；For the electronic equipment not supporting hot plug, if inserting or pull out expansion card in the energized state it is more likely that can damage
Hardware device.In the principle of storage, because there is direct relation in the life-span of expansion card with read-write number of times, it is all first to cache
After certain data volume, property is written in card and forms file again, such as caches 5 seconds, 10 seconds or 5M, 10M and writes once.
If extracting expansion card during caching, the loss of data caching, current file corruption can be led to it is impossible on an electronic device just
Often check.At some in particular cases, the audio-video document as drive recorder or monitoring device is highly important, and data is lost
File corruption of becoming estranged can bring great loss to user.
Content of the invention
It is an object of the invention to proposing a kind of data guard method of expansion card and device, ensure that from electronic equipment
Before taking out expansion card, buffered data is correctly written in expansion card, will not cause damage and the loss of data because of card taking.
For reaching this purpose, the present invention employs the following technical solutions：
On the one hand, the present invention provides a kind of data guard method of expansion card, including：
Under equipment working state, receive draw-in groove open signal；
Stop data buffer storage；
The data of caching is write the memory space of expansion card；
Send shutdown command pass hull closure power supply.
Further, described data guard method also includes：
Under equipment off-mode,
If device power receives start-up command, whether test card slot is opening；
It is that then refusal executes described start-up command, pass hull closure power supply.
Further, before receiving draw-in groove open signal, also include：
Draw-in groove is opened triggering controlling switch and is sent draw-in groove open signal；
Described controlling switch is toggle switch or inductive switch.
On the other hand, the present invention provides a kind of data protecting device of expansion card, for executing above-mentioned data guard method,
Including：Signal acquisition circuit, signal processing circuit and logic control circuit；
Described signal acquisition circuit is used for draw-in groove is detected when being unlocked, and sends draw-in groove open signal and notifies at described signal
Reason circuit；
After described signal processing circuit is used for receiving described draw-in groove open signal, export corresponding control instruction to described
Logic control circuit；
Described logic control circuit is used for, according to described control instruction, stopping data buffer storage, by the data write of caching
The memory space of expansion card, and send shutdown command pass hull closure power supply.
Wherein, described signal acquisition circuit includes toggle switch；
When draw-in groove is unlocked, described toggle switch is pressed in linkage；
Accordingly, described signal acquisition circuit is used for detecting whether described toggle switch is pressed, and if so, sends draw-in groove and opens
Open signal processing circuit described in signalisation.
Or, described signal acquisition circuit includes inductive switch；
Whether described inductive switch sensing draw-in groove is unlocked, and if so, sends draw-in groove open signal and notifies described signal processing
Circuit.
Wherein, described signal processing circuit includes microcontroller；Described logic control circuit includes SOC(system on a chip).
Beneficial effects of the present invention are：
Under equipment working state, user opens draw-in groove and can trigger draw-in groove open signal, and equipment responds this signal, stops data
Caching, the data of caching is write the memory space of expansion card, and sends shutdown command pass hull closure power supply.Take out in user
It is ensured that the data of caching has been correctly written in expansion card before expansion card, equipment shuts down, and will not cause the damage of data because of card taking
And loss.
Brief description
Fig. 1 is the flow chart of the data guard method of expansion card that the embodiment of the present invention one provides.
Fig. 2 is the structural representation of the data protecting device of expansion card that the embodiment of the present invention two provides.
Fig. 3 is the schematic diagram of the signal acquisition circuit that the embodiment of the present invention two provides.
Specific embodiment
For make present invention solves the technical problem that, the technical scheme that adopts and the technique effect that reaches clearer, below
By combine accompanying drawing the technical scheme of the embodiment of the present invention is described in further detail it is clear that described embodiment only
It is a part of embodiment of the present invention, rather than whole embodiments.
Embodiment one
The present embodiment provides a kind of data guard method of expansion card it is adaptable to the various electronic equipment with expansion card, uses
When ensureing that user extracts expansion card, data and file will not be lost or damage.Described data guard method is by a kind of expansion card
Executing, this device is made up of data protecting device software and/or hardware, is typically integrated on electronic equipment.
Fig. 1 is the flow chart of the data guard method of expansion card that the embodiment of the present invention one provides.As shown in figure 1, it is described
Data guard method comprises the steps：
S11, under equipment working state, receives draw-in groove open signal.
Draw-in groove is opened triggering controlling switch and is sent draw-in groove open signal；Described controlling switch is toggle switch or sensing is opened
Close.When the groove lid of draw-in groove is opened, toggle switch is pressed in linkage, or inductive switch senses that groove lid is opened, and triggering draw-in groove opens letter
Number.
S12, stops data buffer storage.
User uses electronic equipment recording, video recording, editor's document etc., and the data of input is buffered on internal memory (RAM) first,
After caching certain time or data length, then write preservation in expansion card.After equipment receives draw-in groove open signal, inwardly stop
Deposit the new data of write.
S13, the data of caching is write the memory space of expansion card.
The data being buffered in internal memory is write in expansion card and preserves.
S14, sends shutdown command pass hull closure power supply.
After completing the write of data, sending instruction makes equipment shut down.
Further, described data guard method also includes：
Under equipment off-mode, if device power receives start-up command, whether test card slot is opening；It is then
Refusal executes described start-up command, pass hull closure power supply.That is, under draw-in groove opening, toggle switch is in the state pressed, sense
Also can sense whether groove lid opens after electricity on inductive switch, when to judge draw-in groove be opening, forbid starting shooting.
In the present embodiment, open the groove lid Trig control signal of draw-in groove by user, instruction equipment carries out data preservation,
Complete the write of data when groove lid fully opens and equipment has shut down it is ensured that when user takes out expansion card, preserving in expansion card
File will not damage, on equipment caching data will not lose.Meanwhile, when draw-in groove is not turned off, equipment can not be started shooting it is ensured that expanding
Exhibition card and equipment will not damage because of plug-in card.
Embodiment two
The present embodiment provides a kind of data protecting device of expansion card, for executing the data protection described in above-described embodiment
Method.Fig. 2 is the structural representation of the data protecting device of expansion card that the embodiment of the present invention two provides.As shown in Fig. 2 it is described
Data protecting device includes：Signal acquisition circuit 21, signal processing circuit 22 and logic control circuit 23.
Described signal acquisition circuit 21 is used for draw-in groove is detected when being unlocked, and sends draw-in groove open signal and notifies described signal
Process circuit 22.
Fig. 3 is the schematic diagram of the signal acquisition circuit that the embodiment of the present invention two provides.As shown in figure 3, described signals collecting
Circuit 21 includes toggle switch 211；Described toggle switch 211 is in parallel with commutation diode ZD, electric capacity C, toggle switch 211 defeated
Go out end to be connected with the negative pole of commutation diode ZD.When draw-in groove is unlocked, described toggle switch 211 is pressed in linkage；Accordingly, described
Signal acquisition circuit 21 is used for detecting whether described toggle switch 211 is pressed, and if so, sends draw-in groove open signal PUSH_KEY
Notify described signal processing circuit 22.
Or, described signal acquisition circuit 21 includes inductive switch；Whether described inductive switch sensing draw-in groove is unlocked, if
It is to send draw-in groove open signal and notify described signal processing circuit 22.
After described signal processing circuit 22 is used for receiving described draw-in groove open signal, export corresponding control instruction to institute
State logic control circuit 23.Described signal processing circuit 22 includes microcontroller (MCU), MCU can according to the content of input signal,
Export corresponding control signal be given to circuit downstream go execute.
Described logic control circuit 23 is used for, according to described control instruction, stopping data buffer storage, the data of caching being write
Enter the memory space of expansion card, and send shutdown command pass hull closure power supply.Described logic control circuit 23 includes SOC(system on a chip)
(SoC：System on a chip), a SOC integrated complete system on a single chip, can be executed according to control instruction
Corresponding operation.
In the present embodiment, open the operation triggering command of draw-in groove by user, the data of instruction equipment write caching is simultaneously
Shutdown, before user fully opens the groove lid of draw-in groove, completes the preservation of data, can effectively prevent loss and the file of data
Damage.
Describe the know-why of the present invention above in association with specific embodiment.These descriptions are intended merely to explain the present invention's
Principle, and limiting the scope of the invention can not be construed to by any way.Based on explanation herein, the technology of this area
Personnel do not need to pay other specific embodiments that performing creative labour can associate the present invention, and these modes fall within
Within protection scope of the present invention.
Claims (7)
1. a kind of data guard method of expansion card is it is characterised in that include：
Under equipment working state, receive draw-in groove open signal；
Stop data buffer storage；
The data of caching is write the memory space of expansion card；
Send shutdown command pass hull closure power supply.
2. the data guard method of expansion card according to claim 1 is it is characterised in that also include：
Under equipment off-mode,
If device power receives start-up command, whether test card slot is opening；
It is that then refusal executes described start-up command, pass hull closure power supply.
3. expansion card according to claim 1 data guard method it is characterised in that receive draw-in groove open signal it
Before, also include：
Draw-in groove is opened triggering controlling switch and is sent draw-in groove open signal；
Described controlling switch is toggle switch or inductive switch.
4. a kind of data protecting device of expansion card is it is characterised in that require the number described in 1 to 3 any one for perform claim
According to guard method, including：Signal acquisition circuit, signal processing circuit and logic control circuit；
Described signal acquisition circuit is used for draw-in groove is detected when being unlocked, and sends draw-in groove open signal and notifies described signal processing electricity
Road；
After described signal processing circuit is used for receiving described draw-in groove open signal, export corresponding control instruction to described logic
Control circuit；
Described logic control circuit is used for, according to described control instruction, stopping data buffer storage, by the data write extension of caching
The memory space of card, and send shutdown command pass hull closure power supply.
5. expansion card according to claim 4 data protecting device it is characterised in that：Described signal acquisition circuit includes
Toggle switch；
When draw-in groove is unlocked, described toggle switch is pressed in linkage；
Accordingly, described signal acquisition circuit is used for detecting whether described toggle switch is pressed, and if so, sends draw-in groove and opens letter
Number notify described signal processing circuit.
6. expansion card according to claim 4 data protecting device it is characterised in that：Described signal acquisition circuit includes
Inductive switch；
Whether described inductive switch sensing draw-in groove is unlocked, and if so, sends draw-in groove open signal and notifies described signal processing circuit.
7. expansion card according to claim 4 data protecting device it is characterised in that：
Described signal processing circuit includes microcontroller；
Described logic control circuit includes SOC(system on a chip).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611055604.1A CN106445844B (en) | 2016-11-25 | 2016-11-25 | Data protection method and device for expansion card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611055604.1A CN106445844B (en) | 2016-11-25 | 2016-11-25 | Data protection method and device for expansion card |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106445844A true CN106445844A (en) | 2017-02-22 |
| CN106445844B CN106445844B (en) | 2024-03-22 |
Family
ID=58218867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611055604.1A Active CN106445844B (en) | 2016-11-25 | 2016-11-25 | Data protection method and device for expansion card |
Country Status (1)
| Country | Link |
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| CN (1) | CN106445844B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107844721A (en) * | 2017-10-30 | 2018-03-27 | 深圳市麦道微电子技术有限公司 | One kind prevents data card from missing plug-in system in drive recorder |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002032326A (en) * | 2000-07-19 | 2002-01-31 | Nec Kofu Ltd | Extended slot hot plug controller |
| CN101377761A (en) * | 2007-08-30 | 2009-03-04 | 联想(北京)有限公司 | Apparatus and method for removing hot-plug equipment |
| CN101458672A (en) * | 2007-12-10 | 2009-06-17 | 联想(北京)有限公司 | Hot plug equipment, computer and data-transmission indicating method |
| CN101604547A (en) * | 2009-07-07 | 2009-12-16 | 中兴通讯股份有限公司 | A kind of disk array hot-swap data Write-protect system and method |
| CN103257906A (en) * | 2012-02-21 | 2013-08-21 | 宇龙计算机通信科技(深圳)有限公司 | Storage card hot plug control method and device |
| CN103744807A (en) * | 2013-12-04 | 2014-04-23 | 西安诺瓦电子科技有限公司 | Memory card access control system based on programmable logic device |
| CN206411659U (en) * | 2016-11-25 | 2017-08-15 | 广东远峰电子科技股份有限公司 | A kind of data protecting device of expansion card |
-
2016
- 2016-11-25 CN CN201611055604.1A patent/CN106445844B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002032326A (en) * | 2000-07-19 | 2002-01-31 | Nec Kofu Ltd | Extended slot hot plug controller |
| CN101377761A (en) * | 2007-08-30 | 2009-03-04 | 联想(北京)有限公司 | Apparatus and method for removing hot-plug equipment |
| CN101458672A (en) * | 2007-12-10 | 2009-06-17 | 联想(北京)有限公司 | Hot plug equipment, computer and data-transmission indicating method |
| CN101604547A (en) * | 2009-07-07 | 2009-12-16 | 中兴通讯股份有限公司 | A kind of disk array hot-swap data Write-protect system and method |
| CN103257906A (en) * | 2012-02-21 | 2013-08-21 | 宇龙计算机通信科技(深圳)有限公司 | Storage card hot plug control method and device |
| CN103744807A (en) * | 2013-12-04 | 2014-04-23 | 西安诺瓦电子科技有限公司 | Memory card access control system based on programmable logic device |
| CN206411659U (en) * | 2016-11-25 | 2017-08-15 | 广东远峰电子科技股份有限公司 | A kind of data protecting device of expansion card |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107844721A (en) * | 2017-10-30 | 2018-03-27 | 深圳市麦道微电子技术有限公司 | One kind prevents data card from missing plug-in system in drive recorder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106445844B (en) | 2024-03-22 |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170823 Address after: 523808, building 1, 2 and 4, building A, 18 industrial East Road, Songshan hi tech Industrial Development Zone, Guangdong, Dongguan Applicant after: GUANGDONG YUANFENG AUTOMOTIVE ELECTRONIC Co.,Ltd. Address before: 523808, No. 18, industrial East Road, Songshan hi tech Industrial Development Zone, Guangdong, Dongguan Applicant before: GUANGDONG YUANFENG ELECTRONIC TECHNOLOGY Co.,Ltd. Applicant before: DONGGUAN YUANFENG TECHNOLOGY Co.,Ltd. Applicant before: GUANGDONG YUANFENG AUTOMOTIVE ELECTRONIC Co.,Ltd. |
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Country or region after: China Address after: No.18, Industrial Road East, Songshanhu Park, Dongguan City, Guangdong Province Applicant after: Yuanfeng Technology Co.,Ltd. Address before: 523808 1st, 2nd and 4th floors, building a, No.18, Gongye East Road, Songshanhu high tech Industrial Development Zone, Dongguan City, Guangdong Province Applicant before: GUANGDONG YUANFENG AUTOMOTIVE ELECTRONIC Co.,Ltd. Country or region before: China |
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