TW201539178A - Fan identifying system and server having same - Google Patents

Abstract

The present invention provides a fan identifying system which is used on a server. The fan identifying system includes an IBMC, a connector, a detecting module, and a notice module. The IBMC is electrically connected to the connector. The connector connects to a fan or a fan detecting board. The detecting module and a notice module are electrically connected to the IBMC. When the connector connects to different external devices, the IBMC outputs different signals to the detecting module, the signals are feed back to the IBMC after being processed by the detecting module, the IBMC determines types of the external devices accordingly, and then the IBMC outputs different control signals to the notice module to notice different states. An server having the fan identifying system is also disclosed.

Description

Fan identification system and server

The present invention relates to a fan identification system, and more particularly to a fan identification system capable of simultaneously identifying a fan and a fan detection board on a server, and an electronic device using the same.

In a server cabinet, multiple fan connectors are usually installed on the cabinet door to access multiple fans to dissipate heat inside the server cabinet. In order to detect the speed of these fans, a fan detection board is usually connected to the server system. The fan detection board has a connector, and a detector board connector is further disposed on the cabinet door of the server to correspondingly connect the connector of the fan detection board to achieve electrical connection with the server system. . However, when the separately provided detection board connector is idle, it will waste resources and occupy the space for connecting the fan, thereby causing more waste of resources.

In view of the above, it is necessary to provide a fan identification system that can automatically detect the access of the fan and the fan detection board.

In addition, a server to which the fan identification system is applied is also provided.

A fan identification system is applied to a server. The fan identification system includes an IBMC and a connector. The IBMC is electrically connected to the connector, and the connector is used to connect a fan or a fan detection board. The fan identification system further includes a detection module and an indication module. The detection module and the indication module are respectively electrically connected to the IBMC. When the connector is connected to different devices, the IBMC sends different signals to the The detection module sends the control signal to the IBMC through the detection module, and the IBMC determines the type of the access device and sends a control signal to the indication module to display different states.

A server, the fan identification system described above.

The fan identification system automatically recognizes that the connector is connected to a fan or a fan detection board when the server system is running, and correspondingly sends a fan speed control signal or receives a fan speed detection signal, and passes the different states of the indicator light. Switch to indicate. Therefore, the fan identification system makes the connector applicable to different external devices, and is flexible in use and practical.

1 is a schematic diagram of a server having a fan identification system in accordance with an embodiment of the present invention.

2 is a circuit diagram of a connector of a fan identification system in accordance with an embodiment of the present invention.

3 is a circuit diagram of a detection module of a fan identification system according to an embodiment of the present invention.

4 is a circuit diagram of an indication module of a fan identification system according to an embodiment of the present invention.

Referring to FIG. 1, a preferred embodiment of the present invention provides a fan identification system 100 for use on a server. The fan identification system 100 includes the integrated baseboard management controller (IBMC) 10, the connector 20, the detection module 30, and the indication module 40. In the server system, a plurality of connectors 20, a plurality of detection modules 30, and a plurality of indicator modules 40 are included. Each of the connectors 20 can be respectively connected to a fan or a fan detecting board. When the connector 20 is connected to the fan, it is used to dissipate heat for the server system; when the connector 20 is connected to the fan detecting board, the connector 20 is used for detecting Fan speed information. The IBM C10 is configured to separately control the plurality of connectors 20, the plurality of detection modules 30, and the plurality of indicator modules 40. Each of the connectors 20 corresponds to a detection module 30 and an indication module 40. The detection module 30 is configured to detect the type of the device accessed by the connector 20. The indicator module 40 is used according to the connector. The type of the device accessed by 20 corresponds to the display indication information. In this embodiment, a connector 20, a detection module 30, and an indicator module 40 are connected to the IBM C10 as an example for description.

The IBM C10 is disposed on the main board of the server, and is electrically connected to the connector 20, the detecting module 30, and the indicating module 40, respectively. The IBM C10 includes a control pin PWM, a feedback pin TACH, a sense pin DET, and an indicator pin LED. The control pin PWM and the feedback pin TACH are electrically connected to the connector 20 respectively. The control pin PWM is used to transmit a Pulse Width Modulation (PWM) signal to the connected fan through the connector 20 to control the rotation speed of the fan. The feedback pin TACH is configured to receive a tachometer (TACH) signal from the fan through the connector 20 to detect fan speed information fed back from the fan. The detection pin DET is electrically connected to the control pin PWM through the detection module 30. The detection pin DET is configured to detect the type of the device accessed by the connector 20 according to the signal of the control pin PWM. The indicator pin LED is electrically connected to the indicator module 40 for controlling the state of the indicator module 40.

Referring to FIG. 2, the connector 20 is disposed on the motherboard of the server, and the connector of the fan or the connector of the fan detection board is connected to the fan or the fan detection board. The connector 20 includes a control signal connection terminal CTR, a feedback signal connection terminal SEN, a power connection terminal VCC, and a ground terminal GND. The control signal terminal CTR is electrically connected to the control pin PWM for transmitting the PWM signal. The feedback signal connection terminal SEN is electrically connected to the feedback pin TACH for transmitting the TACH signal. The power connection terminal VCC is connected to a power source P12V, and the power connection terminal VCC is also grounded through a capacitor C1. The ground terminal GND is grounded.

Referring to FIG. 3 , one end of the detection module 30 is electrically connected to the control pin PWM, and the other end is electrically connected to the detection pin DET. The detecting module 30 includes a first transistor Q1, a second transistor Q2, a buffer U1 and a plurality of resistors. The base of the first transistor Q1 is electrically connected to the control pin PWM through a first resistor R1, and its collector is connected to a power source P3V3 through a second resistor R2, and its emitter is grounded. The base of the first transistor Q1 is also connected to the power source P3V3 through the first resistor R1 and a third resistor R3. The base of the second transistor Q2 is electrically connected to the collector of the first transistor Q1, and the collector thereof is connected to the power source P3V3 through a fourth resistor R4, and the emitter thereof is grounded. The input end of the buffer U1 is electrically connected to the collector of the second transistor Q2, and the output end thereof is electrically connected to the detecting pin DET. The buffer U1 is also connected to the power source P3V3 and to ground.

Referring to FIG. 4 , the indicator module 40 includes a light emitting diode LED 1 and a fifth resistor R5 . The anode of the LED LED1 is connected to a power source P5V, and the cathode thereof is electrically connected to the indicator pin LED through the fifth resistor R5.

If the device connected to the connector 20 is a fan, after the server system is running, the IBMC10 transmits the PWM signal to the fan through its control pin PWM and the control signal connector CTR of the connector 20 to control the fan speed. At the same time, the control pin PWM outputs a high level signal to the first transistor Q1, the first transistor Q1 is turned on, the collector is connected to the ground, and the base of the second transistor Q2 is pulled low. The second transistor Q2 is turned off and its collector remains at a high level. The high level signal of the collector of the second transistor Q2 is buffered by the buffer U1 and transmitted to the detection pin DET. When the detection pin DET receives a high level, the connector 20 is recognized to be connected to the fan. At this time, the IBMC10 outputs a high level control signal to the indication module 40 through the indicator pin LED to control the state of the LED 2 to be off.

If the device connected to the connector 20 is a fan detection board, the connector 20 cannot transmit the PWM signal to the fan detection board, and the control pin PWM is pulled low. At this time, the control pin PWM outputs a low level signal to the first transistor Q1, the first transistor Q1 is turned off, the collector thereof is kept at a high level, and the base of the second transistor Q2 is also Keeping high, the second transistor Q2 is turned on, its collector is connected to ground, and remains low. The low-level signal of the collector of the second transistor Q2 is buffered by the buffer U1 and transmitted to the detection pin DET. When the detection pin DET receives the low level, the connector 20 is recognized to be connected to the fan detector. Measuring board. At this time, the IBMC10 receives the TACH signal carrying the fan speed information from the fan detection board through its feedback pin TACH and the feedback signal connection terminal SEN of the connector 20, and generates a record for storage. At the same time, the IBM C10 outputs a low level control signal to the indication module 40 through the indicator pin LED to control the state of the LED 2 to be bright, to indicate that the connector 20 is currently connected to the fan detector. Measuring board.

When the server system is running, the fan identification system 100 can automatically recognize that the connector 20 is connected to a fan or a fan detection board, and correspondingly send a fan speed control signal or receive a fan speed detection signal, and pass the indicator light. Different states are switched to indicate. Thus, the fan identification system 100 makes the connector 20 adaptable to different external devices, and is flexible in use and practical.

In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. The above description is only the preferred embodiment of the present invention, and equivalent modifications or variations made by those skilled in the art will be covered by the following claims.

1‧‧‧Server

100‧‧‧Fan identification system

10‧‧‧IBMC

PWM‧‧‧ control pin

TACH‧‧‧ feedback pin

DET‧‧‧Detection pin

LED‧‧‧indicator pin

20‧‧‧Connector

CTR‧‧‧ control signal connection

SEN‧‧‧Feedback signal connection

VCC‧‧‧ power connection

GND‧‧‧ ground terminal

30‧‧‧Detection module

40‧‧‧Instruction Module

P12V, P3V3, P5V‧‧‧ power supply

Q1‧‧‧ first triode

Q2‧‧‧Secondary transistor

U1‧‧‧ buffer

LED1‧‧‧Light Emitting Diode

R1~R5‧‧‧First resistance~5th resistor

C1‧‧‧ capacitor

no

1‧‧‧Server

100‧‧‧Fan identification system

10‧‧‧IBMC

PWM‧‧‧ control pin

TACH‧‧‧ feedback pin

DET‧‧‧Detection pin

LED‧‧‧indicator pin

20‧‧‧Connector

CTR‧‧‧ control signal connection

SEN‧‧‧Feedback signal connection

VCC‧‧‧ power connection

GND‧‧‧ ground terminal

30‧‧‧Detection module

40‧‧‧Instruction Module

Claims (10)

A fan identification system is applied to a server. The fan identification system includes an integrated baseboard management controller (IBMC) and a connector. The IBMC is electrically connected to the connector, and the connector is used to connect a fan or a fan. The improvement of the test panel is that the fan identification system further includes a detection module and an indication module. The detection module and the indication module are electrically connected to the IBMC respectively. When the connector is connected to different devices, The IBMC sends a different signal to the detection module, and the signal is processed by the detection module and fed back to the IBMC. The IBMC determines the type of the access device and sends a control signal to the indication module to display different status. The fan identification system of claim 1, wherein the IBMC includes a control pin, a feedback pin, a detection pin, and an indication pin, and the control pin and the feedback pin are respectively connected to the connector. The control pin is configured to transmit a PWM signal to the fan to control the rotation speed of the fan, and the feedback pin is configured to receive a TACH signal from the fan connection portion to detect fan speed information. The fan identification system of claim 2, wherein the connector comprises a control signal connection end, a feedback signal connection end, a power connection end and a ground end, and the control signal connection end is electrically connected to the control pin. The feedback signal connection end is electrically connected to the feedback pin, the power connection end is connected to a first power source, and is also grounded through a capacitor, and the ground end is grounded. The fan identification system of claim 3, wherein one end of the detection module is electrically connected to the control pin, and the other end is electrically connected to the detection pin, and the indicator module is electrically connected. To the indicator pin. The fan identification system of claim 4, wherein the detection module module has a first triode, a second triode, a buffer, and a plurality of resistors, and a base of the first triode Connected to the control pin through a first resistor, the collector is connected to a second power source through a second resistor, the emitter thereof is grounded, and the base of the first transistor further passes the first resistor and a first a third resistor is connected to the second power source; a base of the second transistor is electrically connected to the collector of the first transistor, and a collector of the second transistor is connected to the second through a fourth resistor The power source has an emitter grounded; the buffer input is connected to the collector of the second transistor, and the output end is connected to the detection pin, and the buffer is further connected to the second power source and the ground. The fan identification system of claim 5, wherein the indication module comprises a light emitting diode and a fifth resistor, the anode of the light emitting diode is connected to a third power source, and the cathode thereof passes through the fifth The resistor is electrically connected to the indicator pin. The fan identification system of claim 6, wherein when the connector is connected to the fan, the IBMC transmits the PWM signal to the fan through the control pin and the control signal connection end of the connector; and the control pin Outputting a high level to the first transistor, so that the first transistor is turned on, and the second transistor is turned off, so that the collector of the second transistor receives a high level signal, and the high level signal passes through the The buffer is sent to the detection pin, and the IBMC identifies that the connector is connected as a fan, and outputs a high level control signal to the LED through the indication pin to enable the LED The state of the body is off. The fan identification system of claim 7, wherein when the connector is connected to the fan detection board, the connector cannot transmit the PWM signal to the fan detection board, so that the control pin is pulled low; At the same time, the control pin outputs a low level to the first transistor, so that the first transistor is turned off, and the second transistor is turned on, so that the collector of the second transistor obtains a low level signal, which is low. The level signal is transmitted to the detecting pin through the buffer, and the IBMC identifies that the connector is connected as a fan detecting board, and outputs a low level control signal to the light emitting diode through the indicating pin. The body is such that the state of the light-emitting diode is bright. The fan identification system of claim 1, wherein the fan identification system comprises a plurality of connectors, a plurality of detection modules, and a plurality of indicator modules, and the IBMC respectively connects the plurality of connectors, A detection module and a plurality of indicator modules, each of which can be respectively connected to a fan or a fan connector. A server comprising a fan identification system according to any one of claims 1 to 9.