CN1595375A - Computer data protecting method and apparatus - Google Patents
Computer data protecting method and apparatus Download PDFInfo
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- CN1595375A CN1595375A CNA031570623A CN03157062A CN1595375A CN 1595375 A CN1595375 A CN 1595375A CN A031570623 A CNA031570623 A CN A031570623A CN 03157062 A CN03157062 A CN 03157062A CN 1595375 A CN1595375 A CN 1595375A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
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Abstract
The invention relates to a computer data protection method and its device, which is used to protect the computer data when powered off. The method is composed of the following steps. A} Add the signal transmitting interface between the power output circuit and the main board. B} Transfer the power off indicating signal to the main board through the mentioned signal transmission interface. C} The main board informs the operating system to save the computer data according to the power off indicating signal, and the system enters the predetermining power state. The mentioned equipment is composed of the main board, the external power, the battery, the power commutation circuit, the power off detecting circuit and the signal transmission interface. The main board includes the indicating device additionally. The computer state is maintained by the batter when power off, and the added interface is used to transmit the power-off indicating signal for the operating system to save the computer data and enter the low low-power consumption power state.
Description
Technical field
The present invention relates to the method and the device of data protection, the method and the device of protection computer data when referring to a kind of the outage especially.
Background technology
The widespread use of computing machine has strengthened the ability of human transformation the Nature greatly, and now, new computer technique constantly occurs, and people can utilize the various application of computer realization, and this makes that people's live and work is more convenient.
Because computing machine is realized various application by program processing data, therefore, the protection of the computer data of solution of emergent event is very important.Especially outage (being the external AC power supply power down) computer-chronograph Data Protection is extremely important.The protection of existing techniques in realizing computer data; general automatic hold function by application program is realized; promptly the computer data that just will handle of application program is preserved at set intervals, when application program is undesired when closing, and the computer data of preserving before can recovering to close.
There is following shortcoming in said method:
Owing to be not that every kind of application program all has automatic hold function, therefore, when situation such as sudden power occurring, there is not the computer data of the application program of automatic hold function to lose, this can cause unnecessary loss to the user.
And for the application program that possesses automatic hold function; the degree of its computer data protection is subjected to the restriction of the interval time of preservation automatically; if promptly before next preserves interval time, cut off the power supply suddenly; to have the part computer data and lose owing to not preserving, the effect of real data protection is unsatisfactory.
Summary of the invention
In order to solve the problem that causes computer data to lose owing to reasons such as outages.The invention provides a kind of method and device of computer data protection, can effectively improve the efficient of computer data protection, needing to be widely used in the environment of computer data protection.
According to a kind of computer data guard method provided by the invention, may further comprise the steps:
A) between power supply output loop and mainboard, set up signal and transmit interface;
B) transmit interface by described signal and send external power supply power down indicator signal to described mainboard;
C) according to described external power supply power down indicator signal, described mainboard notifying operation system preserves computer data, and makes system enter the predetermined power source state.
Best, described step b) also comprises and detects whether power down of external power supply, if power supply is switched to powered battery, and send external power supply power down indicator signal to mainboard; Otherwise, continue to detect.
Best, described step c) further comprises judging whether current system power supply state is normal operating conditions, if current system power supply state is a normal operating conditions, after then operating system is preserved computer data, directly makes system enter the predetermined power source state; Otherwise operating system makes the system power supply state enter normal operating conditions earlier, preserves computer data, makes system enter the predetermined power source state then.
Correspondingly, a kind of computer data protective device provided by the invention comprises mainboard and external power supply, also comprises in addition being built in battery in the computing machine, provides electric energy to computing machine when being used for the external power supply power down;
Power supply switch circuit links to each other with battery with external power supply respectively, is used for power supply is switched between external power supply and battery;
The power down circuit for detecting links to each other with power supply switch circuit with external power supply respectively, is used to detect whether power down of external power supply, if detect the external power supply power down, then notifies power supply switch circuit that power supply is switched to powered battery;
Signal transmits interface, is arranged between power supply output loop and the mainboard, is used for the mutual external power supply condition indicative signal of power supply output loop and mainboard;
Described mainboard also comprises indicating device, is used for according to transmit the external power supply outage indicator signal that interface receives from signal, and indication operating system is preserved computer data and made system enter the predetermined power source state.
Best, described indicating device is the ACPI module of mainboard BIOS circuit.
Compared with prior art, the present invention has the following advantages:
When 1, cutting off the power supply, by reserve battery to computer power supply, and transmit interface by signal newly-increased between power supply output loop and the mainboard and notify the mainboard computing machine undesired outage, preserve computer data by mainboard notifying operation system again, and enter predetermined low power consumption power supply status, can overcome the problem of prior art outage computer-chronograph loss of data;
2, the computer data protection all is suitable for various application programs; even application program does not possess automatic hold function; also can preserve whole relevant computer datas of outage pre-treatment, applied widely, the occasion that needs computer data to protect in the time of can being widely used in cutting off the power supply.
Description of drawings
Fig. 1 is the specific embodiment process flow diagram of computer data guard method of the present invention;
Fig. 2 is the composition synoptic diagram of computer data protective device of the present invention;
Fig. 3 is the workflow diagram of computer data protective device of the present invention when outage.
Embodiment
Present computing machine is desktop PC particularly, and the power supply of employing mainly contains two kinds: a kind of is external AC power supply, and it provides computer operation required electric energy in most of the time; Another is a battery, and described battery can be powered separately, also can be when the work of computing machine external AC power supply is undesired, as sudden power etc., continue to provide electric energy to computing machine by described battery as standby power supply, in this case, computing machine is generally operational in sleep state to save electric energy.Concrete, according to up-to-date ACPI (senior setting and power supply interface) standard, system power supply is divided following condition managing:
The S0 state: the normal boot-strap state, promptly system all powers up (running status).
S1 state-S4 state all is a sleep state, wherein
S1 state: the sleep state that the S1 state is defined as waking up fast.In this state, all devices state except that CPUCache (buffer memory) all must be preserved, and that is to say, most of parts are (as CPU in a computing machine, internal memory, chipset) all to keep powering state, otherwise the work at present state can be lost because of outage.
S2 state: the sleep state that the S2 state is defined as waking up fast.Unique difference of this state and S1 is that the data of internal memory will not keep, because internal storage data is the deciding factor of system operation in computing machine, therefore, the producer that supports this state seldom.
S3 state: the sleep state that the S3 state is defined as waking up fast.In this state, in the computing machine except that internal memory nearly all equipment all can cut off the power supply, cpu fan also can stall.System state is stored in the internal memory.After receiving wake-up signal, each equipment wakes up respectively and returns to form.In this case, any equipment of S3 of not supporting all can cause system to crash when entering or withdrawing from the S3 state.
The S4 state: the S4 state is defined as waking up at a slow speed, energy-conservation significantly sleep state.In this state, computing machine cuts off the power supply fully, and system state is saved in the hard disk.
S5 state: normal shutdown state, all information dropouts.
In order to overcome the shortcoming of prior art, the present invention can adopt reserve battery to provide electric energy to keep computer mode when situations such as generation outage, then computer data is preserved, and is entered the power supply status of low-power consumption, as the S4 state.Adopt this method, the computer data protection is not subjected to the restriction of Application Type, and protection efficient is higher.
Describe with specific embodiment below.
Fig. 1 is the method specific embodiment process flow diagram of computer data protection of the present invention.
In order to implement the method for computer data of the present invention protection, be provided with reserve battery in computer-internal, when not having external power supply by described reserve battery to computer power supply, and support the low power consumpting state of computing machine.
With reference to figure 1, described specific embodiment may further comprise the steps:
Step 11 is set up signal and is transmitted interface between power supply output loop and mainboard, described signal transmission interface is mainly used in the power supply output loop and the mutual power supply status indicator signal of mainboard is operated so that mainboard carries out follow-up computer data protection.
During step 12 outage, the power supply output loop transmits interface by described signal and sends the outage indicator signal to mainboard.Concrete, the computer power supply end can be provided with the state that observation circuit detects external power supply, when detecting the external power supply power down (outage), power supply can be switched to powered battery, transmit interface by described signal then and send the outage indicator signal to mainboard, otherwise, continue to detect.
Whether whether power down can be that high level is judged by the PWR_OK pin of detection computations machine ATX reference power supply interface to concrete detection external AC power supply, if high level, can judge that then external AC power supply is normal, otherwise, if low level, then can judge the external AC power supply power down, the outage of notice mainboard external AC power supply.
Step 13 is according to described outage indicator signal, and described mainboard notifying operation system preserves computer data, makes system enter the predetermined power source state then.Described predetermined power source is in the best state to be the power supply status of low-power consumption, as the S4 state.
In addition, mainboard is being received the outage indicator signal of power supply, when beginning and operating system interactive information, the mark of predetermined power source state can be set in the ACPI module of the BIOS of mainboard (basic input-output system) circuit, operating system is after receiving the indicator signal of mainboard, earlier relevant computer datas such as application program are preserved, and entered corresponding power supply status according to the mark that is provided with in the ACPI module in the mainboard.During concrete operations, can carry out respective handling according to current system power supply state, for example, when the user presses the power knob start, if system enters normal boot-strap state S0 state, this moment, then this step 13 can directly enter the S4 state after preserving computer data as if the unexpected power down of external ac power source.And if the current computer state is S1 state, S2 state or S3 state etc., then the operating system need at first return the power supply status of system to the S0 normal operating conditions by described S1 state, S2 state or S3 state, operating system then enters the S4 state after preserving relevant computer data.
It is above-mentioned when external AC power supply cuts off the power supply, operating system is preserved computer data and is made the system power supply state enter the S4 state, after external AC power supply restores electricity, then power supply can be switched back the external power supply power supply and get final product, computer data is not lost because of outage.
In sum, the present invention provides electric energy by reserve battery to computing machine when outage, and transmit interface by the signal that increases between power supply output loop and the mainboard and send the outage indicator signal to mainboard, mainboard can the notifying operation system be preserved computer data according to described outage indicator signal, and enter the low power operation state, can effectively preserve computer data.
Narrate the device of another aspect of the present invention computer data protection below.
Fig. 2 is that the device embodiment of computer data protection of the present invention forms synoptic diagram.
As shown in Figure 2; the device of computer data protection of the present invention comprises following ingredient: mainboard 21 and external power supply 22; described mainboard 22 is provided with the BIOS circuit and other computing machine is formed circuit; external power supply 22 links to each other with mainboard 21 by power supply output loop 23; with to mainboard and other power devices; provide computer operation required AC power, in addition, described device also comprises:
Battery 24 is built in the computing machine, provides electric energy to computing machine when being used for external power supply 22 power down;
Power supply switch circuit 26 is connected with battery 24 with external power supply 22 respectively, is used for power supply is switched between external power supply 22 and battery 24, and when external power cut-off, this power supply switch circuit can switch to power supply battery 24 power supplies;
Power down circuit for detecting 25 links to each other with power supply switch circuit 26 with external power supply 22 respectively, is used to detect whether power down of external power supply 22, if detect external power supply 22 power down, then notifies power supply switch circuit 26 that power supply is switched to battery 24 power supplies;
Signal transmits interface 27, be arranged between power supply output loop 23 and the mainboard 21, be used for power supply output loop 23 and mainboard 21 mutual external power supply condition indicative signals, during outage, can transmit interface 27 by described signal and send external power supply power down indicator signal to mainboard;
Described mainboard 21 also comprises indicating device 211, is used for according to transmitting the external power supply power down indicator signal that interface 27 receives from signal, and indication operating system is preserved data and made system enter the predetermined power source state.
Concrete, described indicating device 211 is preferably the ACPI module in the mainboard BIOS circuit.The ACPI module is to be used for the BIOS circuit to communicate by letter with operating system so that carry out the module of power management, can be carried out by described ACPI module indication operating system to comprise the preservation computer data and make system enter operations such as low-power dissipation power supply state.
Concrete, it is connecting interfaces of a newly-increased 7PIN that the signal between described mainboard 21 and the power supply output loop 23 transmits interface 27, need increase the plug and socket of 7PIN on mainboard and power supply respectively, as shown in table 1
| Pin | Signal name |
| 1 | GND |
| 2 | For expansion in the future keeps |
| 3 | For expansion in the future keeps |
| 4 | BATT_OK |
| 5 | ON_BATT |
| 6 | FanC |
| 7 | FanM |
Table 1
1 PIN meets GND in described interface, 2,3 PIN are that expansion keeps in the future, 4 PIN transmit the BATT_OK signal, 5 PIN transmit the ON_BATT signal, 67 PIN transmit FanC and FanM signal respectively, the signal that wherein said BATT_OK transmits is the effective signal of a TTL (transistor-transistor logic circuit) high level, its standard is output as+5V, judge the surplus value of battery capacity by detecting cell voltage, no matter whether there is external AC power supply, as long as the energy content of battery can be supported a Hold_UP Event (dormant event), the BATT_OK signal just keeps high level.When the BATT_OK signal is low level, i.e. its output is lower than+5V, represents that then the capacity of battery can not be finished a complete Hold_UP Event (dormant event) by back-up system.Can be by LED (light emitting diode) signal lamp of mainboard or other modes, the pilot cell capacity is not much of that, needs charging or replaces battery.
The signal that ON_BATT transmits also is an effective signal of TTL high level, its standard output also is+5V, this signal shows mainly that by the LED demonstration (battery has enough electric energy back-up systems to finish a dormant event by powered battery for external AC power supply decompression (or power down), system, the BATT_OK signal is a high level), detecting after mainboard PS_ON signal is high level, the ON_BATT signal must be got back to low level, at this moment need disconnect and being connected of battery, and stops from the battery power taking.
When FanC and FanM then are used for power supply and are connected to fan, transmit the fan signal.
Above-mentioned BATT_OK signal and ON_BATT signal send to mainboard by power supply; mainboard can be judged power supply status and carry out the associative operations such as preservation of computer data, illustrate the principle of work of computer data protective device of the present invention below with the situation of computing machine external power supply sudden power under the S0 state according to the height of described BATT_OK signal that receives and ON_BATT signal.
Fig. 3 is the workflow diagram of computer data protective device of the present invention when outage.
Step 31 power down circuit for detecting 25 detects external power supply 22 power down, sends message so that the Switching power power supply to power supply switch circuit 26;
Step 32 power supply switch circuit 26 switches to battery 24 power supplies with power supply, and the ON_BATT that is passed through described 7 PIN interfaces by power supply output loop 23 sends the external power supply condition indicative signals to mainboard 21, wherein the signal of exporting to mainboard 21 by ON_BATT is a high level, shows external power supply power down, battery-powered;
It is high level that step 33 mainboard 21 detects the ON_BATT signal, then the power supply status with ACPI module in the BIOS circuit is set at the S4 status indication, and send message informing operating system by described ACPI module to operating system and cut off the power supply, preserve the correlation computations machine data by operating system, and make system enter the power supply status (being the S4 state) of setting.
The present invention when computer circuit breaking owing to can give computer power supply and can keep the low power consumpting state (as the S4 state) of computing machine the long period by reserve battery; and the transmission of the signal between newly-increased power supply and mainboard interface is used to transmit the power supply status indicator signal; according to described indicator signal; computing machine can carry out the protection of computer data and enter low power consumpting state; after restoring electricity, can return normal duty; can effectively preserve computer data; avoid unnecessary computer data to lose, the computer user is avoided because computer data is lost the unnecessary loss that causes.
The above only is a preferred implementation of the present invention, does not constitute the qualification to protection domain of the present invention.Any any modification of being done within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within the claim protection domain of the present invention.
Claims (7)
1, the method for a kind of computer data protection prevents when being used to cut off the power supply that computer data from losing, and it is characterized in that, said method comprising the steps of:
A) between power supply output loop and mainboard, set up signal and transmit interface;
B) transmit interface by described signal and send external power supply power down indicator signal to described mainboard;
C) according to described external power supply power down indicator signal, described mainboard notifying operation system preserves computer data, and makes system enter the predetermined power source state.
2, according to the method for the described computer data protection of claim 1, it is characterized in that described step b) also comprises:
Detect whether power down of external power supply, if power supply is switched to powered battery, and send external power supply power down indicator signal to mainboard; Otherwise, continue to detect.
3, according to the method for the described computer data protection of claim 1, it is characterized in that described step c) further comprises:
Judge whether current system power supply state is normal operating conditions,, after then operating system is preserved computer data, directly make system enter the predetermined power source state if current system power supply state is a normal operating conditions; Otherwise operating system makes the system power supply state enter normal operating conditions earlier, preserves computer data, makes system enter the predetermined power source state then.
4, according to the method for claim 1 or 3 described computer data protections, it is characterized in that described predetermined power source state is the S4 state.
5, the device of a kind of computer data protection prevents when being used to cut off the power supply that computer data from losing, and comprises mainboard and external power supply, it is characterized in that described device also comprises:
Battery is built in the computing machine, provides electric energy to computing machine when being used for the external power supply power down;
Power supply switch circuit links to each other with battery with external power supply respectively, is used for power supply is switched between external power supply and battery;
The power down circuit for detecting links to each other with power supply switch circuit with external power supply respectively, is used to detect whether power down of external power supply, if detect the external power supply power down, then notifies power supply switch circuit that power supply is switched to powered battery;
Signal transmits interface, is arranged between power supply output loop and the mainboard, is used for the mutual external power supply condition indicative signal of power supply output loop and mainboard;
Described mainboard also comprises indicating device, is used for according to transmit the external power supply outage indicator signal that interface receives from described signal, and indication operating system is preserved data and made system enter the predetermined power source state.
6, according to the device of the described computer data protection of claim 5, it is characterized in that described predetermined power source state is the S4 state.
7, according to the device of claim 5 or 6 described computer data protections, it is characterized in that described indicating device is the ACPI module of mainboard BIOS circuit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031570623A CN1595375A (en) | 2003-09-12 | 2003-09-12 | Computer data protecting method and apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031570623A CN1595375A (en) | 2003-09-12 | 2003-09-12 | Computer data protecting method and apparatus |
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| CN1595375A true CN1595375A (en) | 2005-03-16 |
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| CNA031570623A Pending CN1595375A (en) | 2003-09-12 | 2003-09-12 | Computer data protecting method and apparatus |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101867219A (en) * | 2010-06-12 | 2010-10-20 | 中山大学 | Power supply protection system for preventing information loss during power failure and method thereof |
| CN101471126B (en) * | 2007-12-28 | 2011-04-27 | 北京爱国者存储科技有限责任公司 | Power-down data protection method for electronic voice recording equipment |
| CN101377708B (en) * | 2007-08-30 | 2011-06-15 | 宏达国际电子股份有限公司 | Mobile device and power supply control method thereof |
| CN101201686B (en) * | 2006-12-13 | 2011-11-02 | 英业达股份有限公司 | Electric power detecting system and method thereof |
| CN101520745B (en) * | 2008-02-27 | 2012-03-28 | 联想(北京)有限公司 | Data processing equipment and status switching method thereof |
| CN102479302A (en) * | 2010-11-24 | 2012-05-30 | 鸿富锦精密工业（深圳）有限公司 | Password protection system and method |
| CN101652738B (en) * | 2007-04-02 | 2012-07-11 | 国际商业机器公司 | System and method for thresholding system power loss notifications in a data processing system |
| CN103995522A (en) * | 2014-06-11 | 2014-08-20 | 浪潮电子信息产业股份有限公司 | Integrally-designed modular data center system and energy consumption regulation and control method |
| CN107688381A (en) * | 2017-09-04 | 2018-02-13 | 安徽爱她有果电子商务有限公司 | A kind of automatic protective system based on computer burst power-off |
| CN108073476A (en) * | 2016-11-15 | 2018-05-25 | 天津慧康溢德科技发展有限公司 | A kind of technological service industry security system for software |
| CN104836324B (en) * | 2015-04-07 | 2018-08-10 | 深圳欧陆通电子股份有限公司 | A kind of redundant power discharge control system and method |
| CN113835513A (en) * | 2021-09-16 | 2021-12-24 | 新华三信息安全技术有限公司 | Power failure information transmission method, main control board, sub-card, equipment and storage medium |
-
2003
- 2003-09-12 CN CNA031570623A patent/CN1595375A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101201686B (en) * | 2006-12-13 | 2011-11-02 | 英业达股份有限公司 | Electric power detecting system and method thereof |
| CN101652738B (en) * | 2007-04-02 | 2012-07-11 | 国际商业机器公司 | System and method for thresholding system power loss notifications in a data processing system |
| CN101377708B (en) * | 2007-08-30 | 2011-06-15 | 宏达国际电子股份有限公司 | Mobile device and power supply control method thereof |
| CN101471126B (en) * | 2007-12-28 | 2011-04-27 | 北京爱国者存储科技有限责任公司 | Power-down data protection method for electronic voice recording equipment |
| CN101520745B (en) * | 2008-02-27 | 2012-03-28 | 联想(北京)有限公司 | Data processing equipment and status switching method thereof |
| CN101867219A (en) * | 2010-06-12 | 2010-10-20 | 中山大学 | Power supply protection system for preventing information loss during power failure and method thereof |
| CN102479302A (en) * | 2010-11-24 | 2012-05-30 | 鸿富锦精密工业（深圳）有限公司 | Password protection system and method |
| CN103995522A (en) * | 2014-06-11 | 2014-08-20 | 浪潮电子信息产业股份有限公司 | Integrally-designed modular data center system and energy consumption regulation and control method |
| CN104836324B (en) * | 2015-04-07 | 2018-08-10 | 深圳欧陆通电子股份有限公司 | A kind of redundant power discharge control system and method |
| CN108073476A (en) * | 2016-11-15 | 2018-05-25 | 天津慧康溢德科技发展有限公司 | A kind of technological service industry security system for software |
| CN107688381A (en) * | 2017-09-04 | 2018-02-13 | 安徽爱她有果电子商务有限公司 | A kind of automatic protective system based on computer burst power-off |
| CN113835513A (en) * | 2021-09-16 | 2021-12-24 | 新华三信息安全技术有限公司 | Power failure information transmission method, main control board, sub-card, equipment and storage medium |
| CN113835513B (en) * | 2021-09-16 | 2024-03-01 | 新华三信息安全技术有限公司 | Power-off information transmission method, main control board, sub-card, equipment and storage medium |
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