CN104216815B - Fan state indication device - Google Patents

Abstract

A fan status indicating device is suitable for being coupled to a fan to receive a working status signal from the fan and receive a working voltage. The fan status indication device includes a processing unit and a display unit. The processing unit receives the operating voltage and the operating state signal to generate a first control signal or a second control signal. Wherein, the working state signal is used to indicate that the fan is in a normal state or an abnormal state. The display unit receives the first control signal to display a first indication signal, or receives the second control signal to display a second indication signal. Wherein, when the fan is in a normal state, the display unit displays the first indication signal. When the fan is in an abnormal state, the display unit displays the first indication signal and the second indication signal.

Description

Fan status indicator

technical field

The invention relates to a fan state indicating device, in particular to a fan state indicating device which can effectively indicate the working state of the fan and reduce the production cost of the server.

Background technique

As far as the server is concerned, it is bulky and takes up space. When an enterprise uses multiple servers, the storage space of the server host is even more considerable, which promotes the emergence of the rack (Rack), so that several server hosts can be placed in the rack at the same time and managed uniformly.

In the structure of the cabinet, multiple fan control boards (Fan Controller Board, FCB) will be configured to control the operation of the corresponding fans, thereby cooling the cabinet. Moreover, these fan control boards are connected to, for example, a rack management controller (Rack Management Controller, RMC). Moreover, the rack management controller can access the information of each fan control board for unified management. That is, the user can control the operation of the fan control board through the rack management controller.

However, in the current circuit design of these fan control boards, the control signal is generated by the hard disk light signal control device, and drives the buffer circuit in the fan control board, so that the light-emitting component generates a corresponding light signal to indicate that the fan is on. normal state or abnormal state. Therefore, each fan control board must be additionally designed with a buffer circuit.

Generally speaking, most of the circuit designs applied to the fan control board in the prior art are designed with a buffer circuit, so that the light-emitting components can generate corresponding indicator lights to indicate the working status of the fan. As a result, each fan control board needs to be manufactured with an additional buffer circuit, which also increases the production cost of the server.

Contents of the invention

The present invention provides a fan state indicating device, which is used to effectively indicate the working state of the fan, so that the user can deal with it when the fan is abnormal, and can also reduce the production cost of the server.

According to an embodiment of the present invention, a fan status indicating device is adapted to be coupled to a fan to receive a working status signal from the fan and receive a working voltage. The fan status indication device includes a processing unit and a display unit. The processing unit is used for receiving the working voltage and the working status signal, and generating a first control signal or a second control signal according to the working status signal. Wherein, the working state signal is used to indicate that the fan is in a normal state or an abnormal state. The display unit is coupled to the processing unit for receiving the first control signal or the second control signal, and displaying a first indication signal according to the first control signal, or displaying a second indication signal according to the second control signal. Wherein, when the fan is in a normal state, the display unit displays the first indication signal, and when the fan is in an abnormal state, the display unit displays the first indication signal and the second indication signal.

Wherein, the processing unit has a first input terminal, a second input terminal, a first output terminal, a second output terminal and a ground terminal, the first input terminal is used to receive the operating voltage, and the second input terminal The end is used to receive the working status signal, the first output end is used to generate the first control signal, and the second output end is used to generate the second control signal.

Wherein, the display unit includes: a first resistor with a first terminal and a second terminal, the first terminal of the first resistor receives the operating voltage; a first light-emitting element with a first terminal and a The second end, the first end of the first light-emitting element is coupled to the second end of the first resistor, the second end of the first light-emitting element receives the first control signal to display the first indication signal ; a second resistor with a first terminal and a second terminal, the first terminal of the second resistor receives the operating voltage; and a second light emitting element with a first terminal and a second terminal, the The first end of the second light emitting element is coupled to the second end of the second resistor, and the second end of the second light emitting element receives the second control signal to display the second indication signal.

Wherein, the first light emitting element and the second light emitting element are respectively a light emitting diode.

Wherein, it further includes: a divided voltage generating unit coupled between the processing unit and the display unit, and used to generate a divided voltage for the display unit.

Wherein, the voltage division generating unit includes: a third resistor having a first terminal and a second terminal, the first terminal of the third resistor receives the operating voltage, and the second terminal of the third resistor is coupled to The processing unit; and a fourth resistor having a first terminal and a second terminal, the first terminal of the fourth resistor receives the operating voltage, and the second terminal of the fourth resistor is coupled to the processing unit.

Wherein, the fan state indication device is configured in a server.

Wherein, the processing unit is a microcontroller.

The fan status indication device provided by the present invention uses the processing unit to receive the working status signal from the fan, and generates a first control signal indicating that the fan is in a normal state or a second control signal in an abnormal state, and then displays the The unit displays the first indication signal according to the first control signal, or displays the second indication signal according to the second control signal, so as to indicate the working state of the fan correspondingly. In this way, the working state of the fan can be effectively indicated, so that the user can take corresponding measures when the fan is abnormal, and the production cost of the server can also be reduced.

The above descriptions about the content of the present invention and the following descriptions of the implementation modes are used to demonstrate and explain the spirit and principle of the present invention, and provide further explanations of the patent application scope of the present invention.

Description of drawings

FIG. 1 is a schematic circuit diagram of a fan status indicating device of the present invention.

FIG. 2 is a schematic circuit diagram of a fan status indicating device according to another embodiment of the present invention.

Among them, reference signs:

10 fan status indication device

100 processing units

110 First input terminal

120 Second input terminal

130 First output terminal

140 Second output terminal

200 display units

210 first light-emitting element

220 Second light-emitting element

300 partial pressure generation unit

GND ground terminal

R1 first resistor

R2 second resistor

R3 third resistor

R4 fourth resistor

VCC operating voltage

detailed description

The detailed features and advantages of the present invention are described in detail below in the embodiments, the content of which is sufficient to enable any person skilled in the art to understand the technical content of the present invention and implement it accordingly, and according to the content disclosed in this specification, the scope of claims and the drawings , any person skilled in the art can easily understand the related objects and advantages of the present invention. The following examples further illustrate the concept of the present invention in detail, but do not limit the scope of the present invention in any way.

Please refer to FIG. 1 , which is a schematic circuit diagram of a fan status indicating device according to an embodiment of the present invention. The fan status indicating device 10 of this embodiment is suitable for being coupled to a fan to receive a working status signal from the fan and receiving a working voltage VCC, and the fan status indicating device 10 is configured in a server. That is, the user can know the working status of the fan in the server through the fan status indicating device 10 . The fan status indicating device 10 includes a processing unit 100 and a display unit 200 .

The processing unit 100 is used for receiving the working voltage VCC and the working status signal, and generating a first control signal or a second control signal according to the working status signal. In this embodiment, the working voltage VCC can be P3V3, for example. Wherein, the working state signal is used to indicate that the fan is in a normal state or an abnormal state. In this embodiment, the processing unit 100 may be, for example, a microcontroller (Micro-Controller Unit, MCU). However, the present embodiment is not limited thereto, and the processing unit 100 may also be implemented using other similar elements. Further, the processing unit 100 has a first input terminal 110 , a second input terminal 120 , a first output terminal 130 , a second output terminal 140 and a ground terminal GND. The first input terminal 110 is used for receiving the working voltage VCC, and the second input terminal 120 is used for receiving the working status signal. The first output terminal 130 is used to generate a first control signal, and the second output terminal 140 is used to generate a second control signal.

The display unit 200 is coupled to the processing unit 100 for receiving the first control signal or the second control signal, and displaying a first indication signal according to the first control signal, or displaying a second indication signal according to the second control signal . Further, the display unit 200 includes a first resistor R1 , a first light emitting element 210 , a second resistor R2 and a second light emitting element 220 .

The first resistor R1 has a first terminal and a second terminal, and the first terminal of the first resistor R1 receives the operating voltage VCC. The first light emitting element 210 has a first end and a second end, the first end of the first light emitting element 210 is coupled to the second end of the first resistor R1, and the second end of the first light emitting element 210 receives the first control signal to display the first indicator signal. In this embodiment, the first light emitting element 210 can be, for example, a light emitting diode. Wherein, the first indication signal is, for example, a green light. However, this embodiment is not limited thereto, and the first light emitting element 210 may also be implemented using other similar light emitting elements.

The second resistor R2 has a first terminal and a second terminal, and the first terminal of the second resistor R2 receives the operating voltage VCC. The second light emitting element 220 has a first end and a second end, the first end of the second light emitting element 220 is coupled to the second end of the second resistor R2, and the second end of the second light emitting element 220 receives the second control signal to display the second indicator signal. In this embodiment, the second light emitting element 220 can be, for example, a light emitting diode. Wherein, the second indication signal is, for example, a red light. However, the present embodiment is not limited thereto, and the second light emitting element 220 may also be implemented using other similar light emitting elements.

For example, when the fan is in a normal state, the second input terminal 120 of the processing unit 100 will receive a working state signal such as a normal state. Accordingly, the first output terminal 130 of the processing unit 100 generates a first control signal, and the first control signal is transmitted to the first light emitting element 210 of the display unit 200 . Next, according to the first control signal, the first light emitting element 210 correspondingly displays the first indication signal.

Further, when the fan is in an abnormal state, the second input terminal 120 of the processing unit 100 will receive, for example, a working state signal indicating an abnormal state. Accordingly, the second output terminal 140 of the processing unit 100 generates a second control signal, and the second control signal is transmitted to the second light emitting element 220 of the display unit 200 . Then, according to the second control signal, the second light emitting element 220 correspondingly displays the second indication signal. Moreover, the first output terminal 130 of the processing unit 100 can continuously generate the first control signal, so that the first light emitting element 210 can continuously display the first indication signal.

That is to say, when the fan is in an abnormal state, the display unit 200 can simultaneously display the first indication signal and the second indication signal. Wherein, the first indication signal is, for example, a green light, and the second indication signal is, for example, a red light. Therefore, the display unit 200 can, for example, display an orange light signal after color mixing, so that the user can take corresponding measures when the fan is abnormal.

Please refer to FIG. 2 , which is a schematic circuit diagram of a fan status indicating device according to another embodiment of the present invention. In this embodiment, the fan status indicating device 10 further includes a partial pressure generating unit 300 . The divided voltage generation unit 300 is coupled between the processing unit 100 and the display unit 200 for generating a divided voltage to the display unit 200 . Further, the divided voltage generating unit 300 includes a third resistor R3 and a fourth resistor R4.

The third resistor R3 has a first terminal and a second terminal, the first terminal of the third resistor R3 receives the operating voltage VCC, and the second terminal of the third resistor R3 is coupled to the processing unit 100 . The fourth resistor R4 has a first terminal and a second terminal, the first terminal of the fourth resistor R4 receives the operating voltage VCC, and the second terminal of the fourth resistor R4 is coupled to the processing unit 100 .

In addition, the configuration of related components and their operational relationship of the fan status indicating device 10 can refer to the implementation manners of the foregoing embodiments, so details are not repeated here.

To sum up, the fan status indication device disclosed in the embodiments of the present invention generates the first control signal indicating that the fan is in a normal status or the first control signal in an abnormal status through the processing unit receiving the working status signal from the fan. Two control signals, and then through the display unit to display the first indication signal according to the first control signal, or to display the second indication signal according to the second control signal, so as to indicate the working state of the fan correspondingly. In this way, the working state of the fan can be effectively indicated, so that the user can take corresponding measures when the fan is abnormal, and the production cost of the server can also be reduced.

Certainly, the present invention also can have other various embodiments, without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these corresponding changes All changes and modifications should belong to the protection scope of the claims of the present invention.

Claims (6)

1. A fan status indicating device, adapted to be coupled to a fan, to receive a working status signal from the fan, and to receive a working voltage, characterized in that the fan status indicating device comprises: A processing unit is used to receive the working voltage and the working state signal, and generate a first control signal or a second control signal according to the working state signal, wherein the working state signal is used to indicate that the fan is in a normal state state or an abnormal state; A display unit, coupled to the processing unit, for receiving the first control signal or the second control signal, and displaying a first indication signal according to the first control signal, or displaying a a second indication signal; and A divided voltage generating unit, coupled between the processing unit and the display unit, for generating a divided voltage to the display unit, wherein the divided voltage generating unit includes: a third resistor having a first end and a second end, the first end of the third resistor receives the operating voltage, the second end of the third resistor is coupled to the processing unit; and a fourth resistor having a first end and a second end, the first end of the fourth resistor receives the operating voltage, and the second end of the fourth resistor is coupled to the processing unit; Wherein, when the fan is in the normal state, the display unit displays the first indication signal, and when the fan is in the abnormal state, the display unit displays the first indication signal and the second indication signal. 2. The fan status indicating device according to claim 1, wherein the processing unit has a first input terminal, a second input terminal, a first output terminal, a second output terminal and a ground terminal, The first input terminal is used to receive the working voltage, the second input terminal is used to receive the working status signal, the first output terminal is used to generate the first control signal, and the second output terminal is used to generate the second control signal. 3. The fan status indicating device according to claim 1, wherein the display unit comprises: a first resistor having a first end and a second end, the first end of the first resistor receives the working voltage; A first light-emitting element has a first end and a second end, the first end of the first light-emitting element is coupled to the second end of the first resistor, and the second end of the first light-emitting element receives the first control signal to display the first indication signal; A second resistor has a first end and a second end, the first end of the second resistor receives the operating voltage; and A second light emitting element has a first end and a second end, the first end of the second light emitting element is coupled to the second end of the second resistor, and the second end of the second light emitting element receives The second control signal is used to display the second indication signal. 4 . The fan status indicating device according to claim 3 , wherein the first light-emitting element and the second light-emitting element are respectively a light-emitting diode. 5. The fan status indicating device according to claim 1, wherein the fan status indicating device is configured in a server. 6. The fan status indicating device according to claim 1, wherein the processing unit is a microcontroller.