CN106528373A - Method for improving core voltage monitoring precision of mainboard - Google Patents
Method for improving core voltage monitoring precision of mainboard Download PDFInfo
- Publication number
- CN106528373A CN106528373A CN201610954747.XA CN201610954747A CN106528373A CN 106528373 A CN106528373 A CN 106528373A CN 201610954747 A CN201610954747 A CN 201610954747A CN 106528373 A CN106528373 A CN 106528373A
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- adc
- resistance
- mainboard
- voltage
- core voltage
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/3003—Monitoring arrangements specially adapted to the computing system or computing system component being monitored
- G06F11/3031—Monitoring arrangements specially adapted to the computing system or computing system component being monitored where the computing system component is a motherboard or an expansion card
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/3058—Monitoring arrangements for monitoring environmental properties or parameters of the computing system or of the computing system component, e.g. monitoring of power, currents, temperature, humidity, position, vibrations
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computing Systems (AREA)
- Physics & Mathematics (AREA)
- Quality & Reliability (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Measurement Of Current Or Voltage (AREA)
Abstract
The invention particularly relates to a method for improving core voltage monitoring precision of a mainboard. According to the method for improving the core voltage monitoring precision of the mainboard, before a 12V core voltage enters an ADC (Analog-to-Digital Converter) module through a resistor divider, a BMC chip periphery circuit is optimized; and through adjustment of a resistance value of the resistor divider R1 for inputting the 12V core voltage into the ADC module, a voltage monitoring range of the ADC module is increased, and monitoring errors resulting from input saturation are reduced. Moreover, the input of the ADC module is compensated, and the monitoring precision is further improved. According to the method for improving the core voltage monitoring precision of the mainboard, the monitoring precision before the voltage enters the ADC module is greatly improved, and the 12V core voltage can be monitored accurately, thereby accurately judging the health condition of a machine, further improving the stability of the mainboard and improving the reliability of the product.
Description
Technical field
The present invention relates to server admin technical field, more particularly to a kind of to improve the side that mainboard core voltage monitors precision
Method.
Background technology
Generally, in server system, mainboard is directly determined in occupation of vital status, the health status of mainboard
The service life of server.Server is different in the data-center applications of different clients, and the pressure applied to server is not yet
Equally；Different according to the pressure that client applies, some parameters on mainboard can occur minor variations, such as 12V cores on mainboard
Electrocardio pressure.Therefore, user needs the health status of these important parameters of monitor in real time, if any exception, immediately treats, it is ensured that service
Device can run well under any pressure.
Generally, in SMARTRACK Cabinet-type servers, 12V core voltages are particularly important.Institute in SMARTRACK racks
Some nodes are all by with a pair of copper bar power takings, if 12V voltages are problematic, whole cabinet is all risky.Therefore, it is necessary to real
When monitor copper bar voltage, guarantee that the situation of machine is good.
In prior art designs, it is by monitoring the 12V core voltages on mainboard monitoring copper bar voltage.Particular by
BMC（Baseboard management controller：Baseboard Management Controller）ADC in chip（Analog-to-
Digital Converter）Module monitors, 12V voltages enter ADC after electric resistance partial pressure, defeated after analog-to-digital conversion
Go out monitoring voltage value.But if the design of chip periphery monitoring circuit is unreasonable, the monitoring of 12V core voltages will produce compared with
Big error, monitors the demand that precision can not meet client.
Based on this, the present invention proposes a kind of method for improving mainboard core voltage monitoring precision.It is intended to set by optimization
Meter, improves the voltage monitoring precision of mainboard, and then improves the reliability of product.
The content of the invention
The present invention is in order to make up the defect of prior art, there is provided a kind of simple efficient to improve the monitoring of mainboard core voltage
The method of precision.
The present invention is achieved through the following technical solutions：
It is a kind of to improve the method that mainboard core voltage monitors precision, it is characterised in that：BMC chip periphery circuit includes divider resistance
R1, resistance R2 and filter capacitor C1,12V core voltage Jing divider resistance R1 are connected to the ADC of BMC chip, the resistance
One end of R2 and filter capacitor C1 is each grounded, and the other end is connected between the divider resistance R1 and ADC；
In 12V core voltages before partial pressure enters ADC, optimize BMC chip periphery circuit, by adjusting 12V cores
The divider resistance R1 resistances of control source to ADC, increase the scope of ADC voltage monitoring, reduce due to being input into saturation
And the monitoring error for causing；Simultaneously ADC input is compensated, so as to further increase the precision of monitoring.
To the adjustment of the divider resistance R1 by increasing the resistance of divider resistance R1 realizing, by increasing divider resistance
The resistance of R1 increases the scope of voltage monitoring, enables the maximum voltage that ADC is monitored to be more than server copper bar voltage；To described
The compensation of ADC input is realized by the configuration pin ADC12P ground connection by ADC, to reduce the reading of ADC
Error.
The resistance of the divider resistance R1 increases to 5.6K Ω, and resistance R2 resistances are 1K Ω.
The invention has the beneficial effects as follows：The method that the raising mainboard core voltage monitors precision, makes into before ADC
Monitoring precision has obtained great lifting and improvement, accurately 12V core voltages can be monitored, be easy to correctly judge machine
Device health status, and then the stability of mainboard is improve, improve the reliability of product.
Description of the drawings
Accompanying drawing 1 improves the method schematic diagram that mainboard core voltage monitors precision for the present invention.
Accompanying drawing 2 is existing mainboard core voltage monitoring method schematic diagram.
Specific embodiment
In order that the technical problem to be solved, technical scheme and beneficial effect become more apparent, below tie
Drawings and Examples are closed, the present invention will be described in detail.It should be noted that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
The method that the raising mainboard core voltage monitors precision, BMC chip periphery circuit include divider resistance R1, resistance R2
With filter capacitor C1,12V core voltage Jing divider resistance R1 are connected to the ADC of BMC chip, the resistance R2 and filtered electrical
The one end for holding C1 is each grounded, and the other end is connected between the divider resistance R1 and ADC；
In 12V core voltages before partial pressure enters ADC, optimize BMC chip periphery circuit, by adjusting 12V cores
The divider resistance R1 resistances of control source to ADC, increase the scope of ADC voltage monitoring, reduce due to being input into saturation
And the monitoring error for causing；Simultaneously ADC input is compensated, so as to further increase the precision of monitoring.
To the adjustment of the divider resistance R1 by increasing the resistance of divider resistance R1 realizing, by increasing divider resistance
The resistance of R1 increases the scope of voltage monitoring, enables the maximum voltage that ADC is monitored to be more than server copper bar voltage；To described
The compensation of ADC input is realized by the configuration pin ADC12P ground connection by ADC, to reduce the reading of ADC
Error.
Accompanying drawing 2 is existing mainboard core voltage monitoring method schematic diagram.In prior art designs, divider resistance R1 is 3.9K
Ω, resistance R2 resistance is 1K Ω.As the input voltage range that ADC is supported is 0～2.5V, i.e. A point voltages are to the maximum
2.5V.However, even if A points reach maximum 2.5V, the monitoring maximum of ADC is：(2.5V/1KΩ)*(3.9KΩ+
1KΩ)=12.25V.In this case, the voltage higher than 12.25V will be reached full because of the restriction of ADC monitoring
With show as 12.25V, and the copper bar voltage of server be 12.5V, thus can not correctly monitor copper bar voltage.Together
When, ADC itself also has certain reading error, without compensation error be 0.0625V, balanced situation
Lower error is 0.025V.Two factor collective effects, result in 12V core voltages monitoring precision relatively low.
For the trueness error for solving to bring due to monitoring input saturation, the resistance of divider resistance R1 is adjusted, by
3.9K Ω are changed to 5.6K Ω.The maximum voltage that can be monitored after adjustment is：(2.5V/1K Ω) * (5.6K Ω+1K Ω)=16.5V,
More than the copper bar voltage of server, the error brought due to monitoring input saturation is solved.Meanwhile, in order to eliminate ADC itself
Reading error, configuration pin ADC12P ground connection in ADC thus can be contracted ADC reading accuracy
It is little to 0.025V.Both collective effects, it is possible to solve the problems, such as that the monitoring precision of 12V core voltages is low.
The method that the raising mainboard core voltage monitors precision, makes into the monitoring precision before ADC to have obtained greatly
Lifting and improvement, accurately 12V core voltages can be monitored, be easy to correctly judge machine health indicator, Jin Erti
The high stability of mainboard, improves the reliability of product.
Claims (3)
- It is 1. a kind of to improve the method that mainboard core voltage monitors precision, it is characterised in that：BMC chip periphery circuit includes partial pressure electricity Resistance R1, resistance R2 and filter capacitor C1,12V core voltage Jing divider resistance R1 are connected to the ADC of BMC chip, the electricity One end of resistance R2 and filter capacitor C1 is each grounded, and the other end is connected between the divider resistance R1 and ADC；In 12V core voltages before partial pressure enters ADC, optimize BMC chip periphery circuit, by adjusting 12V cores The divider resistance R1 resistances of control source to ADC, increase the scope of ADC voltage monitoring, reduce due to being input into saturation And the monitoring error for causing；Simultaneously ADC input is compensated, so as to further increase the precision of monitoring.
- It is 2. according to claim 1 to improve the method that mainboard core voltage monitors precision, it is characterised in that：To the partial pressure The adjustment of resistance R1 is realized by the resistance of increase divider resistance R1, increases voltage by the resistance for increasing divider resistance R1 and supervise The scope of control, enables the maximum voltage that ADC is monitored to be more than server copper bar voltage；Compensation to ADC input Realized by the configuration pin ADC12P ground connection by ADC, to reduce the reading error of ADC.
- It is 3. according to claim 2 to improve the method that mainboard core voltage monitors precision, it is characterised in that：The partial pressure electricity The resistance of resistance R1 increases to 5.6K Ω, and resistance R2 resistances are 1K Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610954747.XA CN106528373A (en) | 2016-10-27 | 2016-10-27 | Method for improving core voltage monitoring precision of mainboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610954747.XA CN106528373A (en) | 2016-10-27 | 2016-10-27 | Method for improving core voltage monitoring precision of mainboard |
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| CN106528373A true CN106528373A (en) | 2017-03-22 |
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| CN201610954747.XA Pending CN106528373A (en) | 2016-10-27 | 2016-10-27 | Method for improving core voltage monitoring precision of mainboard |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108984365A (en) * | 2018-06-27 | 2018-12-11 | 郑州云海信息技术有限公司 | A kind of BMC voltage monitoring method and system for preventing from accidentally alerting |
| FR3087809A1 (en) * | 2018-10-30 | 2020-05-01 | Continental Automotive France | PRESENCE DETECTION SENSOR FOR MOTOR VEHICLE |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102841319A (en) * | 2012-08-15 | 2012-12-26 | 曙光信息产业(北京)有限公司 | Battery voltage monitoring method based on BMC (baseboard management controller) |
| US20140218199A1 (en) * | 2013-02-06 | 2014-08-07 | Hewlett-Packard Development Company, L.P. | Controller coupled to visual indicator |
-
2016
- 2016-10-27 CN CN201610954747.XA patent/CN106528373A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102841319A (en) * | 2012-08-15 | 2012-12-26 | 曙光信息产业(北京)有限公司 | Battery voltage monitoring method based on BMC (baseboard management controller) |
| US20140218199A1 (en) * | 2013-02-06 | 2014-08-07 | Hewlett-Packard Development Company, L.P. | Controller coupled to visual indicator |
Non-Patent Citations (1)
| Title |
|---|
| 周超，李春茂: "新型8通道24位-型模数转换器ADS1256的原理及应用", 《国外电子元器件》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108984365A (en) * | 2018-06-27 | 2018-12-11 | 郑州云海信息技术有限公司 | A kind of BMC voltage monitoring method and system for preventing from accidentally alerting |
| FR3087809A1 (en) * | 2018-10-30 | 2020-05-01 | Continental Automotive France | PRESENCE DETECTION SENSOR FOR MOTOR VEHICLE |
| WO2020089094A1 (en) * | 2018-10-30 | 2020-05-07 | Continental Automotive France | Presence detection sensor for a motor vehicle |
| US12007522B2 (en) | 2018-10-30 | 2024-06-11 | Vitesco Technologies GmbH | Presence detection sensor for a motor vehicle |
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Application publication date: 20170322 |