CN100343786C - Power supply monitoring and protecting system - Google Patents
Power supply monitoring and protecting system Download PDFInfo
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- CN100343786C CN100343786C CNB001377981A CN00137798A CN100343786C CN 100343786 C CN100343786 C CN 100343786C CN B001377981 A CNB001377981 A CN B001377981A CN 00137798 A CN00137798 A CN 00137798A CN 100343786 C CN100343786 C CN 100343786C
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- voltage
- power supply
- supply monitoring
- central processing
- processing unit
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Abstract
The present invention relates to a power supply monitoring and protecting system which is used for monitoring at least one voltage is in the normal state or not and protecting the voltage against errors. The power supply monitoring and protecting system mainly comprises a control unit and an I/O unit, wherein the control unit is used for monitoring the voltage at any time, and has a switching circuit, the voltage is input through the switching circuit, and the voltage value is displayed; the I/O unit knows the voltage value through the control unit, and judges whether the voltage value exceeds the set standard voltage value or not. When the voltage value exceeds the set standard voltage value, a power supply is promptly switched off so as to perform the functions of effective monitoring and protection.
Description
Technical field
The present invention relates to a kind of guard method, especially relate to a kind of monitoring and protection method or Power Supply Monitoring guard method of CPU associated voltage in notebook computer.
Background technology
General notebook computer mainly is equiped with motherboard and heat abstractor at present, and motherboard is provided with element such as CPU (central processing unit) (central processing unit; CPU) etc., heat abstractor includes radiator fan etc.When CPU running and adstante febre, fan blows out hot-air, and heat abstractor causes convection current rapidly, increases radiating effect, in order to the inner and extraneous cross-ventilation that produces of notebook computer, also can all elements on the motherboard be dispelled the heat.
Though be provided with heat abstractor in the notebook computer, yet notebook computer is not provided with the line related supervisory system to system or CPU, thus system or the present magnitude of voltage of CPU can't be learnt, and the function that can't accomplish effective monitoring and protection.
Because can't monitoring and protect of the magnitude of voltage that system or CPU are present so burn if any the part on the motherboard, will cause power supply to rise, and often may therefore just burn CPU or motherboard.Therefore there be not the line related monitor protective system of design at above-mentioned common technology notebook computer to system or CPU; we will propose a power supply monitoring and protecting system; whether normal in order to the state of monitoring at least a voltage, and protection appears making when wrong in the above-mentioned voltage of what.
Summary of the invention
Purpose of the present invention is to provide a kind of Power Supply Monitoring guard method, its be suitable for notebook computer on, but supervisory system or central processing unit associated voltage.
Another object of the present invention is to provide a kind of Power Supply Monitoring guard method, and it can make effective protection powered-down immediately when mistake appears in each voltage, avoid motherboard or CPU to burn.
In order to reach above-mentioned purpose, Power Supply Monitoring guard method of the present invention is applied on the following power supply monitoring and protecting system, and this system comprises a control module, and it is monitoring voltage at any time; An and output/input unit; it learns this magnitude of voltage by this control module, judges whether this magnitude of voltage surpasses a set standard voltage value, when this magnitude of voltage surpasses the magnitude of voltage of this set standard; with being about to power-off, to reach the effect of effective monitoring and protection.
Power Supply Monitoring guard method of the present invention comprises the steps:
S11, system boot, the protection of beginning Power Supply Monitoring;
S12, by described output/input unit by described control module input system voltage and central processing unit voltage;
S13, described control module shows two magnitudes of voltage;
S14, described output/input unit judges at first by resulting two magnitudes of voltage of monitoring at any time of described control module whether described system voltage value is correct; If step S14 judges described system voltage value and surpasses a set standard voltage value, then arrives step S15; If step S14 judges described system voltage value and does not surpass a set standard voltage value, then to step S16;
S15, record surpassed the magnitude of voltage of set standard at that time, and with being about to power-off, again to step S17, judged system's protection of whether shutting down;
S16 judges whether described central processing unit magnitude of voltage is correct; If step S16 judges described central processing unit magnitude of voltage and surpass a set standard voltage value, then to step S15, record surpassed the magnitude of voltage of set standard at that time, and with being about to power-off, again to step S17, judged system's protection of whether shutting down; If step S16 judges described central processing unit magnitude of voltage and does not surpass a set standard voltage value, then to step S17;
S17 judges system's protection of whether shutting down, if system's shutdown, then to step S15, shutdown is handled the back and finished the Power Supply Monitoring protection, otherwise to step S14 repetitive operation.
Described step S12 is by control module input system voltage or the central processing unit voltage of described output/input unit by having a change-over circuit.
Described step S12 is by control module input system voltage or the central processing unit voltage of described output/input unit by having an A/D converter.
Control module in described each step is a keyboard controller.
Output/input unit in described each step is a basic input/output.
Described system voltage among the described step S14 is 3V voltage or 5V voltage.
Described central processing unit voltage among the described step S16 comprises central processing unit core voltage and central processing unit input/output voltage.
Description of drawings
To detailed content of the present invention and technology, conjunction with figs. is illustrated below:
Fig. 1 is the arrangement plan of power supply monitoring and protecting system of the present invention;
Fig. 2 is a power supply monitoring and protecting system workflow calcspar of the present invention.
Embodiment
Power Supply Monitoring guard method of the present invention is applied on the following power supply monitoring and protecting system, and this system comprises a control module, and it is monitoring voltage at any time; An and output/input unit; it learns this magnitude of voltage by this control module, judges whether this magnitude of voltage surpasses a set standard voltage value, when this magnitude of voltage surpasses the magnitude of voltage of this set standard; with being about to power-off, to reach the effect of effective monitoring and protection.The control module of this power supply monitoring and protecting system also includes a change-over circuit, and this change-over circuit is imported this voltage.And this change-over circuit can be one mould/digital converter (analog to digital converter; A/Dconverter), this control module can be a keyboard controller (Kevboar Controller), and this output/input unit can be a basic input/output (basic Input output system; BIOS), the voltage of monitoring is system voltage and CPU voltage, and system voltage can be 3V voltage or 5V voltage, and CPU voltage can be core (core) voltage or I/O (I/O) voltage.
Fig. 1 is the arrangement plan of power supply monitoring and protecting system of the present invention.As shown in the figure, control module is the associated voltage of monitoring and display system or CPU at any time, and I/O unit is learnt magnitude of voltage by control module, when surpassing the magnitude of voltage of set standard, with being about to power-off.
Control module can be a keyboard controller (Keyboard Controller) 40, between passage and input/output device, includes data buffer and logical circuit, and control data shifts and peripherals work.Keyboard controller 40 has a change-over circuit 50, and change-over circuit can be an A/D converter (analog to digital converter; A/D converter), with this voltage via A/D converter input and show this magnitude of voltage.
This voltage can be system voltage or CPU voltage.As shown in the figure, A/D converter input system 3V voltage 21, system 5V voltage 23, core cpu (core) voltage 25 and CPU I/O (I/O) voltage 27.
The I/O list can not be (the basic Inputoutput system of a keyboard basic input/output; BIOS) 30, the operation interface of system is provided; The transfer of data and steering order between promotion system and its peripherals makes operating system be fit to the user.
Keyboard basic input/output BIOS 30 learns magnitude of voltage by keyboard controller 40, judges whether magnitude of voltage surpasses a set standard voltage value, when magnitude of voltage surpasses the magnitude of voltage of set standard, closes with being about to system power supply switch 29.
Fig. 2 is the workflow calcspar of Power Supply Monitoring guard method of the present invention.As shown in Figure 2,
At first, in step S11, system boot, the protection of beginning Power Supply Monitoring.
At step S12, keyboard basic input/output BIOS 30 imports associated voltage by the A/D converter of keyboard controller 40 again.
Then, at step S13, show each magnitude of voltage by keyboard controller 40.Among the step S14, keyboard basic input/output BIOS 30 judges by the keyboard controller 40 resulting magnitudes of voltage of monitoring at any time whether the magnitude of voltage of the 3V of system voltage, 5V voltage is correct.
If step S14 judges the 3V of system, 5V magnitude of voltage and surpass a set standard voltage value, then in step S15, record surpassed the magnitude of voltage of set standard at that time, and with being about to power-off, again to step S17, judged system's protection of whether shutting down.If step S14 judges the 3V of system, 5V magnitude of voltage and does not surpass a set standard voltage value, then to step S16, judges whether the magnitude of voltage of core cpu voltage and CPU input/output voltage is correct again.
If step S16 judges core cpu voltage and CPU input/output voltage value and surpass a set standard voltage value, then to step S15, record surpassed the magnitude of voltage of set standard at that time, and with being about to power-off, again to step S17, judged system's protection of whether shutting down.
If step S16 judges core cpu voltage and CPU input/output voltage value and does not surpass a set standard voltage value, then to step S17.In step S17, judge system's protection of whether shutting down.If system's shutdown, then to step S15, shutdown is handled the back and is finished the Power Supply Monitoring protection, otherwise to step S14 repetitive operation.
Because power supply monitoring and protecting system of the present invention can be learnt system or the present magnitude of voltage of CPU by keyboard basic input/output BIOS 30; and when this magnitude of voltage surpasses the magnitude of voltage of this set standard; rapidly with power-off, so can reach the effect of effective monitoring and protection.
In sum, the present invention is put notebook computer with the power supply monitoring and protecting system design, so can avoid power supply to rise the problem that causes CPU or motherboard to burn.Though oneself is disclosed the present invention with preferred embodiment; right its is not in order to limit the present invention; anyly have the knack of this operator; in god who does not break away from this creation and scope; may do some and change and retouching, so protection scope of the present invention should be as the criterion with the scope of applying for a patent that claims were defined.
Claims (7)
1. Power Supply Monitoring guard method, whether the state of monitoring at least a voltage is normal, and makes protection when mistake appears in above-mentioned voltage, is applied in the system that comprises a control module and an output/input unit, and this method may further comprise the steps:
S11, system boot, the protection of beginning Power Supply Monitoring;
S12, by described output/input unit by described control module input system voltage and central processing unit voltage;
S13, described control module shows two magnitudes of voltage;
S14, described output/input unit judges at first by resulting two magnitudes of voltage of monitoring at any time of described control module whether described system voltage value is correct; If step S14 judges described system voltage value and surpasses a set standard voltage value, then arrives step S15; If step S14 judges described system voltage value and does not surpass a set standard voltage value, then to step S16;
S15, record surpassed the magnitude of voltage of set standard at that time, and with being about to power-off, again to step S17, judged system's protection of whether shutting down;
S16 judges whether described central processing unit magnitude of voltage is correct; If step S16 judges described central processing unit magnitude of voltage and surpass a set standard voltage value, then to step S15, record surpassed the magnitude of voltage of set standard at that time, and with being about to power-off, again to step S17, judged system's protection of whether shutting down; If step S16 judges described central processing unit magnitude of voltage and does not surpass a set standard voltage value, then to step S17;
S17 judges system's protection of whether shutting down, if system's shutdown, then to step S15, shutdown is handled the back and finished the Power Supply Monitoring protection, otherwise to step S14 repetitive operation.
2, Power Supply Monitoring guard method as claimed in claim 1 is characterized in that, described step S12 is by control module input system voltage or the central processing unit voltage of described output/input unit by having a change-over circuit.
3. Power Supply Monitoring guard method as claimed in claim 2 is characterized in that, described step S12 is by control module input system voltage or the central processing unit voltage of described output/input unit by having an A/D converter.
4. Power Supply Monitoring guard method as claimed in claim 1 is characterized in that, the control module in described each step is a keyboard controller.
5, Power Supply Monitoring guard method as claimed in claim 1 is characterized in that, the output/input unit in described each step is a basic input/output.
6, Power Supply Monitoring guard method as claimed in claim 1 is characterized in that, the described system voltage among the described step S14 is 3V voltage or 5V voltage.
7, Power Supply Monitoring guard method as claimed in claim 1 is characterized in that, the described central processing unit voltage among the described step S16 comprises central processing unit core voltage and central processing unit input/output voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001377981A CN100343786C (en) | 2000-12-26 | 2000-12-26 | Power supply monitoring and protecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001377981A CN100343786C (en) | 2000-12-26 | 2000-12-26 | Power supply monitoring and protecting system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1361463A CN1361463A (en) | 2002-07-31 |
| CN100343786C true CN100343786C (en) | 2007-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001377981A Expired - Fee Related CN100343786C (en) | 2000-12-26 | 2000-12-26 | Power supply monitoring and protecting system |
Country Status (1)
| Country | Link |
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| CN (1) | CN100343786C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100334575C (en) * | 2003-03-06 | 2007-08-29 | 华硕电脑股份有限公司 | Portable computer with desk top computer processor and its power supply managing method |
| CN113849375A (en) * | 2021-09-29 | 2021-12-28 | 超越科技股份有限公司 | Remote management method, system and medium for computer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0342846A2 (en) * | 1988-05-16 | 1989-11-23 | Fujitsu Limited | Data protection system in a data processing system |
| US5386575A (en) * | 1991-06-10 | 1995-01-31 | Canon Kabushiki Kaisha | Electronic apparatus and method for detecting the value of voltage supplied by a power source during the operation of an input and/or output device on the basis of test data sent to the input and/or output device |
| CN1212392A (en) * | 1997-09-23 | 1999-03-31 | 微星科技股份有限公司 | Method for protecting CPU against damage owing to overvoltage and overcurrent |
-
2000
- 2000-12-26 CN CNB001377981A patent/CN100343786C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0342846A2 (en) * | 1988-05-16 | 1989-11-23 | Fujitsu Limited | Data protection system in a data processing system |
| US5386575A (en) * | 1991-06-10 | 1995-01-31 | Canon Kabushiki Kaisha | Electronic apparatus and method for detecting the value of voltage supplied by a power source during the operation of an input and/or output device on the basis of test data sent to the input and/or output device |
| CN1212392A (en) * | 1997-09-23 | 1999-03-31 | 微星科技股份有限公司 | Method for protecting CPU against damage owing to overvoltage and overcurrent |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1361463A (en) | 2002-07-31 |
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