CN101800432A - System power supply monitoring device and method thereof - Google Patents

Abstract

The invention discloses a system power supply monitoring device and a system power supply monitoring method, wherein the system power supply monitoring method is suitable for an electronic device. The system power monitoring method comprises the following steps of firstly obtaining charging data from a charging module. And then, judging whether the charging module stops charging the battery or the battery capacity is higher than the preset battery capacity according to the charging data. And if the charging module charges the battery and the battery capacity is lower than the preset battery capacity, judging whether the charging current value charged into the battery is smaller than the preset current value. If the charging current value is smaller than the preset current value and the system power value is smaller than the preset power value, the control element reduces the preset power value, and if the charging current value is larger than the preset current value and the system power value is larger than the preset power value, the control element increases the preset power value so as to further more accurately adjust and calibrate the power of the electronic device.

Description

System power monitoring device and method thereof

technical field

The invention relates to a system power monitoring device and a method thereof, in particular to a system power monitoring device and a method for judging battery charging status to adjust a system power default value.

Background technique

With the development of electronic technology, the size of many electronic systems, such as notebook computers, is getting smaller and smaller, and the amount of signals they need to process is also becoming more and more complicated. A large number of program calculations cause the electronic system to use too much power. Excessive power will reduce the service life of the components of the electronic system, and even cause damage to the electronic system. Therefore, electronic systems need a power management system to effectively manage power. Taking a notebook computer as an example, traditionally, the power management system uses resistance to measure the current and voltage of the power supply to know the power of the system, and the monitoring system power is within a safe range.

However, only using resistance to detect system power is likely to fail to perform the normal correction function due to insufficient sensitivity of the resistance, and cause measurement errors due to aging of the resistance. Once an error occurs in the power of the measurement system, the mechanism for adjusting the power of the system will fail, resulting in erroneous actions such as transformer damage, electronic system damage, or system work efficiency is greatly reduced.

Therefore, it is not easy to accurately measure the actual power of the system by only detecting the power of the system in the conventional technology. Therefore, how to enable the power detection circuit to detect the actual power and automatically feed it back to the power management system so that the system can accurately monitor the power at any time is what the industry needs.

In view of various problems in the prior art, in order to solve them in a comprehensive manner, the inventor proposes a system power monitoring device and its method based on many years of research and development and practical experience, as a means and basis for improving the above-mentioned shortcomings.

Contents of the invention

In view of this, one of the objectives of the present invention is to provide a system power monitoring device and method thereof, so as to solve the problem in the prior art that the actual power of the system cannot be accurately obtained by means of resistance detection.

Therefore, in order to achieve the above purpose, the present invention provides a system power monitoring method, which is suitable for an electronic device, and the device includes a charging module, a power detection element and a control element. The power detection element detects the power value of the system, and the control element adjusts the power state of the electronic device. The control element has a preset battery capacity, a preset current value, and a preset power value, wherein the preset power value can be adjusted by And change. The system power monitoring method includes the following steps. First obtain the charging data from the charging module. Then, according to the charging data, it is judged whether the charging module stops charging the battery or whether the battery capacity is higher than the preset battery capacity. If the charging module is charging the battery and the battery capacity is lower than the preset battery capacity, it is judged whether the charging current value charged into the battery is smaller than the preset current value. If the charging current value is less than the preset current value and the system power value is less than the preset power value, the control element reduces the preset power value; if the charging current value is greater than the preset current value and the system power value is greater than the preset power value, the control element Increase preset power value.

To achieve the above purpose, the present invention also provides a system power monitoring device suitable for electronic devices, which has a charging module. The system power monitoring device includes a power detection element and a control element. The power detection element detects a system power value of the electronic device. The control element has preset preset battery capacity, preset current value and preset power value. The control element adjusts the power state of the electronic device according to the preset power value and the system power value. Among them, the control element obtains the charging data from the charging module, and judges according to the charging data whether the charging module stops charging the battery or whether the battery capacity is higher than the preset battery capacity; if the charging module is charging the battery and the battery capacity is lower than the preset battery capacity capacity, it is judged whether the charging current value charged into the battery is less than the preset current value; if the charging current value is less than the preset current value and the system power value is less than the preset power value, the control element reduces the preset power value.

By comparing the adjusted preset power value with the system power value, the electronic device can more accurately adjust the power consumption.

Based on the above, according to the present invention, the system power monitoring device and its method have one or more of the following advantages:

(1) The system power monitoring device and its method can determine whether the charging current value charged into the battery is less than a preset current value and whether the system power value is less than a preset power value. If so, the control element reduces the preset power value to prevent the actual power of the system itself from exceeding the maximum power supply capacity, but the system power monitoring device does not initiate a power reduction action, thereby preventing the system from overheating or being damaged.

(2) The system power monitoring device and its method can determine whether the charging current value charged into the battery is greater than a preset current value and whether the system power value is greater than a preset power value. If so, the control element increases the preset power value to prevent the actual power of the system itself from exceeding the maximum power supply load, but the system power monitoring device initiates an action to reduce power, so as to avoid the unexpected decrease in system operating capacity and make the application program abnormal The situation of execution.

Description of drawings

1 is a flow chart of the steps of the system power monitoring method of the present invention.

2 is a flow chart of the steps of the first embodiment of the system power monitoring method of the present invention.

3 is a flow chart of the steps of the second embodiment of the system power monitoring method of the present invention.

4 is a block diagram of the system power monitoring device of the present invention.

1 means electronic device, 2 means charging module, 20 means monitoring battery circuit, 21 means charging data, 211 means charging current value, 212 means charging state, 213 means battery capacity, 22 means battery, 3 means power detection element, 31 means system power 4 represents the control element, 41 represents the preset power value, 42 represents the preset battery capacity, 43 represents the preset current value, S11-S14 represent the step flow, S21-S25 represent the step flow, and S31-S35 represent the step flow.

Detailed ways

Please refer to FIG. 1 , which is a flow chart of the steps of the system power monitoring method of the present invention. In the figure, the flowchart starts with system power monitoring.

Step S11: judging whether the battery stops charging or whether the battery capacity is higher than the preset battery capacity. If yes, control the system power according to the preset power value and return to system power monitoring to continue judging; if not, proceed to the next step S12.

Step S12: Determine whether the charging current value is less than a preset current value. If yes, go to the next step S13; if not, go to step S13a.

Step S13: Determine whether the system power value is less than a preset power value. If yes, proceed to the next step S14; if not, control the system power according to the preset power value and return to system power monitoring to continue to judge.

Step S14: Decrease the preset power value, then control the system power according to the preset power value and return to system power monitoring to continue judging.

Step S13a: Determine whether the system power value is greater than a preset power value. If yes, proceed to the next step S14a, if not, control the system power according to the preset power value and return to system power monitoring to continue judging.

Step S14a: Increase the preset power value, then control the system power according to the preset power value and return to the system power monitoring to continue judging.

Please refer to FIG. 2 , which is a flow chart of the steps of the first embodiment of the system power monitoring method of the present invention. In the figure, the system power monitoring method is applicable to an electronic device, and the electronic device at least includes a charging module, a power detection element and a control element. The power detection element detects a system power value of the electronic device. The control element adjusts the power state of the electronic device. The control element has a preset battery capacity, a preset current value, and a preset power value, wherein the preset power value can be changed through adjustment. The system power monitoring method includes the following steps:

Step S21: Obtain charging data from the charging module.

Step S22: Determine whether the charging module stops charging the battery or whether the battery capacity is higher than a preset battery capacity according to the charging data.

Step S23: If the charging module is charging the battery and the battery capacity is lower than the preset battery capacity, then judge whether the charging current value charged into the battery is lower than the preset current value according to the charging data.

Step S24: If the charging current value is smaller than the preset current value and the system power value is smaller than the preset power value, the control element decreases the preset power value.

Step S25: Control the system power according to the preset power value and the system power value, so as to prevent the actual system power from exceeding the maximum power supply load, but the system power monitoring device does not initiate a power reduction action, and return to step S21 to continue judging.

After adjusting the above preset power value to make it equal to the system power value, if the battery is not charging and the system power value is greater than the corrected preset power value; or the battery capacity is higher than the preset battery capacity and the system power value greater than the corrected preset power value; or the battery is in a charging state, the battery capacity is lower than the preset battery capacity, and the charging current value is smaller than the preset current value and the system power value is greater than the adjusted preset power value. When any one of the above three conditions is met, the action of the control element adjustment system to reduce power consumption. Among them, the adjustment method of the control components is implemented by controlling the system power supply and management performance (BIOS) to reduce the CPU operation frequency, reduce the graphics card operation, and reduce or stop the power supply of various devices in the system.

Please refer to FIG. 3 , which is a flow chart of the steps of the second embodiment of the system power monitoring method of the present invention. In the figure, the system power monitoring method is applicable to an electronic device, and the electronic device at least includes a charging module, a power detection element and a control element. The power detection element detects a system power value of the electronic device. The control element adjusts the power state of the electronic device. The control element has a preset battery capacity, a preset current value, and a preset power value, wherein the preset power value can be changed through adjustment. The system power monitoring method includes the following steps:

Step S31: Obtain charging data from the charging module.

Step S32: Determine whether the charging module stops charging the battery or whether the battery capacity is higher than a preset battery capacity according to the charging data.

Step S33: If the charging module is charging the battery and the battery capacity is lower than the preset battery capacity, then judge whether the charging current value charged into the battery is lower than the preset current value according to the charging data.

Step S34: If the charging current value is greater than the preset current value and the system power value is greater than the preset power value, the control element increases the preset power value.

Step S35: Control the system power according to the preset power value and the system power value, so as to prevent the actual system power from exceeding the maximum power supply load, but the system power monitoring device has issued an action to reduce the system power.

After adjusting the above preset power value to make it equal to the system power value, if the battery is not charging and the system power value is less than the corrected preset power value; or the battery capacity is higher than the preset battery capacity and the system power value less than the corrected preset power value; or the battery is in a charging state, the battery capacity is lower than the preset battery capacity, and the charging current value is greater than the preset current value and the system power value is smaller than the corrected preset power value. When any one of the above three conditions is met, the control element stops the above action of reducing power consumption. Among them, the adjustment method of the control components restores the normal operation of the CPU operation frequency, graphics card performance, and power supply of various devices in the system by controlling the system power supply and management performance (BIOS), so as to restore the normal operation of the system.

In the first embodiment and the second embodiment, the electronic device can be a portable electronic device, a notebook computer or a mobile communication device. The power detection element is a resistor and a power chip. After measuring the input voltage and current through the resistor, it is amplified by the power chip to obtain the system power value. The preset battery capacity is preferably 90% of the capacity of the battery itself as the preset battery capacity. The preset current is preferably 0, but not limited thereto.

Incidentally, the system power monitoring method of the first embodiment and the second embodiment can be implemented in combination to provide more complete protection of the system, and are not limited to be implemented separately.

Please refer to FIG. 4 , which is a block diagram of the system power monitoring device of the present invention. In the figure, the system power monitoring device is suitable for an electronic device 1, and the electronic device 1 can be a portable electronic device, a notebook computer or a mobile communication device. The electronic device 1 has a charging module 2. The charging module 2 has a monitoring battery circuit 20 and a battery 22. The monitoring battery circuit 20 can monitor and output the real-time status of the battery 22 (such as whether the battery 22 is in a charging state, the capacity of the battery that can be charged, and the input The current value of the battery), the monitoring battery circuit 20 has charging data 21 , and the charging data 21 has charging status 212 , battery capacity 213 and charging current value 211 . The system power monitoring device includes a power detection element 3 and a control element 4 .

The power detection element 3 receives the system power, calculates the system power value 31 by using the input voltage and current of the system power supply, and outputs the system power value 31 to the control element 4 .

The control element 4 has a preset power value 41 , a preset battery capacity 42 and a preset current value 43 . The control element 4 adjusts the power of the electronic device 1 according to the preset power value 41 and the system power value 31 .

Wherein, the control unit 4 obtains the charging data 21 from the monitoring battery circuit 20 , and judges whether the charging module 2 stops charging the battery 22 or whether the battery capacity 213 is higher than the preset battery capacity 42 according to the charging state 212 . If the charging module is charging the battery and the battery capacity is lower than the preset battery capacity, the control element 4 determines whether the charging current value 211 charged into the battery 22 is smaller than the preset current value 43 . If so, the control element 4 further reduces the preset power value 41 , and after the adjusted preset power value 41 is compared with the system power value 31 , it can be known from the first embodiment that the power consumed by the overall system can be reduced.

Conversely, when the battery 22 is being charged and the battery capacity 213 is lower than the preset battery capacity 42, the control element 4 judges whether the charging current value 211 charged into the battery 22 is greater than the preset current value 43, and if so, the control element 4 further increases the preset value. Power value 41, after the preset power value 41 after adjustment is compared with the system power value 31, it is known from the second embodiment that the control element 4 can make the system stop the above action of reducing power consumption, and restore the normal operation of the system .

In addition, when the battery 22 supplies power to the monitoring battery circuit 20, the monitoring battery circuit 20 outputs charging data 21 related to the charging current value 211, charging status 212 or battery capacity 213 to the control element 4, so that the control element 4 can data to adjust the default power value.

The above description is for illustration only, not for limitation. Any equivalent modification or change without departing from the spirit and scope of the present invention shall be included in the scope of the patent application.

Claims (10)

1. system power supply method for supervising, be applicable to electronic installation, this electronic installation comprises charging module, power detection element and control element at least, the system power value of this this electronic installation of power detection element testing, this control element preestablishes preset battery capacity, predetermined current value and default performance number, should preset the power rating that performance number is used for this electronic installation of adjustment, this system power supply method for supervising comprises following steps:

Obtain the charging data from this charging module;

Judge according to this charging data whether this charging module stops whether battery charge or this battery capacity are higher than preset battery capacity;

If this charging module charges to this battery and this battery capacity is lower than this preset battery capacity, then judge whether to charge into the charging current value of this battery less than the predetermined current value according to this charging data; And

If less than this default performance number, then reduce should default performance number for this control element less than this predetermined current value and this system power value for this charging current value.

2. the system as claimed in claim 1 method for monitoring power supply also comprises:

If greater than this default performance number, then increase should default performance number for this control element greater than this predetermined current value and this system power value for this charging current value.

3. the system as claimed in claim 1 method for monitoring power supply is characterized in that, this charging data comprises charged state, judges whether this battery to be charged so that this control element to be provided.

4. the system as claimed in claim 1 method for monitoring power supply is characterized in that, this power detection element is resistance and power supply chip.

5. the system as claimed in claim 1 method for monitoring power supply is characterized in that, this electronic installation is portable electron device, notebook computer or mobile communications device.

6. a system power supply supervising device is applicable to the electronic installation with charging module, and this system power supply supervising device comprises:

The power detection element detects the system power value of this electronic installation; And

Control element preestablishes preset battery capacity, predetermined current value and default performance number, and this control element came the power rating of this electronic installation of adjustment according to presetting performance number and this system power value;

Wherein, this control element obtains the charging data from this charging module, and judges according to this charging data whether this charging module stops whether battery charge or this battery capacity are higher than preset battery capacity; If this control element judges that this battery charges and this battery capacity is lower than preset battery capacity, then judge whether to charge into the charging current value of this battery less than the predetermined current value; If this control element judge this charging current value less than this predetermined current value and this system power value less than this default performance number, then reduce should default performance number for this control element.

7. system power supply supervising device as claimed in claim 6, it is characterized in that, if this control element judge this charging current value of charging into this battery greater than this predetermined current value and this system power value greater than this default performance number, then increase should default performance number for this control element.

8. system power supply supervising device as claimed in claim 6 is characterized in that, this charging data comprises charged state, judges whether this battery to be charged so that this control element to be provided.

9. system power supply supervising device as claimed in claim 6 is characterized in that, this power detection element is resistance and power supply chip.

10. system power supply supervising device as claimed in claim 6 is characterized in that, this electronic installation is portable electron device, notebook computer or mobile communications device.

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