CN210776663U

CN210776663U - Bus management module

Info

Publication number: CN210776663U
Application number: CN201922324509.2U
Authority: CN
Inventors: 徐竹青; 荣光祥
Original assignee: Shanghai Bix Electronic Co ltd
Current assignee: Shanghai Bix Electronic Co ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-06-16
Anticipated expiration: 2029-12-23

Abstract

The utility model provides a bus management module, it includes power detection and control module, power conversion module, BMC controller and AD converting circuit. The bus management module provides functions of real-time accurate detection of power supply voltage and current, intelligent control of a power supply, temperature sensing and real-time detection, fan control, reset control and the like through an IPMB (intelligent power management bus) of an I2C interface, and can also support user-defined software functions. Compared with the management mode based on network communication in the prior art, the method is more reliable and can be adapted to various devices. The bus management module is packaged by dual in-line insertion, can be used in a plug-and-play mode, and simplifies the design cost and the deployment difficulty of the monitoring system.

Description

Bus management module

Technical Field

The utility model relates to the field of electronic technology, especially, relate to a bus management module.

Background

In the fields of internet of things, data centers and manpower, a large number of hardware devices are generally required to be deployed. A large number of devices operate simultaneously, and various hardware needs to be uniformly managed and monitored in a certain way. In the prior art, each device is generally managed through a network, for example, the device is waken up through the network, and the device reports a state through the network, but the management method has the following problems:

1. each device reports the state by itself, and when a processor of the device fails or is invaded by viruses, an error state can be reported, so that the reliability of the management system is reduced;

2. network protocols require complex protocol stacks and have high requirements on hardware and software.

SUMMERY OF THE UTILITY MODEL

To not enough among the above-mentioned prior art, the utility model provides a bus management module, this bus management module is through being connected by monitoring equipment to be connected with management system through the bus, in order to realize the effective management to monitored equipment.

In order to achieve the above object, the utility model provides a bus management module, it includes power detection and control module, power conversion module, BMC controller and AD converting circuit, wherein:

the input end of the power supply detection and control module is connected with the power supply input pin, and the output end of the power supply detection and control module is connected with the power supply output pin;

the A/D conversion circuit comprises at least two input ends, and each input end is respectively connected with the power supply input pin and a plurality of reference voltage pins;

the BMC controller is respectively connected with the power supply detection and control module and the A/D conversion circuit through a bidirectional bus and is configured to drive the power supply detection and control module to control the connection and disconnection between the power supply input pin and the power supply output pin according to the detection result of the A/D conversion circuit;

the BMC controller is also connected with a starting signal pin, a reset signal pin, a UART port pin, an I2C port pin and a plurality of GPIO pins;

the input end of the power supply conversion module is connected with the power supply input pin, and the output end of the power supply conversion module is respectively connected with the BMC controller and the A/D conversion circuit so as to supply power to the BMC controller and the A/D conversion circuit;

the power supply detection and control module, the power supply conversion module, the BMC controller and the A/D conversion circuit are packaged into a glue injection block in a glue injection mode, and the power supply input pin, the power supply output pin, the reference voltage pin, the starting signal pin, the reset signal pin, the UART port pin, the I2C port pin and the GPIO pin all comprise one pin or a plurality of pins; the pins are inserted into the glue injection block and are arranged in a dual-in-line mode.

The utility model discloses a further improvement lies in, the figure of reference voltage pin is three, each the voltage input scope of reference voltage pin is 0.6V to 18.6V.

The utility model discloses a further improvement lies in, I2C port pin is in order to include clock pin and signal pin.

The utility model discloses a further improvement lies in, the figure of GPIO pin is 6.

The utility model discloses a further improvement lies in, the inside pull-down resistance that is provided with of start signal pin.

The utility model has the advantages of: the IPMB bus with the I2C interface provides functions of real-time accurate detection of power supply voltage and current, intelligent control of a power supply, temperature sensing and real-time detection, fan control, reset control and the like, and can also support user-defined software functions. Compared with the management mode based on network communication in the prior art, the method is more reliable and can be adapted to various devices. The bus management module is packaged by dual in-line insertion, can be used in a plug-and-play mode, and simplifies the design cost and the deployment difficulty of the monitoring system.

Drawings

FIG. 1 is a schematic diagram of a bus management module according to the present invention;

fig. 2 is a perspective view of the bus management module of the present invention;

FIG. 3 is a pin numbering diagram of the bus management module of the present invention;

fig. 4 is a schematic diagram of an application example of the bus management module of the present invention;

fig. 5 is a schematic diagram of another application example of the bus management module of the present invention;

fig. 6 is a schematic diagram of another application example of the bus management module of the present invention.

Detailed Description

The following description of the preferred embodiment of the present invention will be given in detail with reference to the accompanying drawings 1, so as to better understand the functions and features of the present invention.

Referring to fig. 1, an embodiment of the present invention includes a bus management module, which includes a power detection and control module 1, a power conversion module 2, a BMC controller 3, and an a/D conversion circuit 4. The power detection and control module 1, the power conversion module 2, the BMC controller 3 and the A/D conversion circuit 4 all adopt existing components and combinations thereof, and do not relate to specific software.

The input end of the power detection and control module 1 is connected to the power input Pin, and the output end thereof is connected to the power output Pin Pout. And a power meter and a relay switch are arranged in the power supply detection and control module 1. The a/D conversion circuit 4 includes at least two input terminals, each of which is connected to the power input Pin and the plurality of reference voltage pins Vref, respectively. The BMC controller 3 is connected to the power detection and control module 1 and the a/D conversion circuit 4 through a bidirectional bus, and configured to drive the power detection and control module 1 to control on and off between the power input Pin and the power output Pin Pout according to a detection result of the a/D conversion circuit 4.

For example, the BMC controller 3 detects the voltage values of the power input Pin and the reference voltage pins Vref through the a/D conversion circuit 4 to determine whether the voltage of the power input Pin exceeds the range defined by the reference voltage pins Vref, and controls the power input Pin to be disconnected from the power output Pin Pout through the power detection and control module 1 if the voltage of the power input Pin is too large or too small.

The power meter in the power detection and control module 1 can detect the power output by the power output pin Pout, and the BMC controller 3 can obtain the power detected by the power meter through the bus. In addition, the BMC controller 3 may send an instruction to the power detection and control module 1 through the bus, so that a relay inside the power detection and control module 1 is turned on or off, thereby implementing a function of controlling on and off between the power input Pin and the power output Pin Pout.

In addition, the BMC controller 3 is also connected to a BOOT signal pin BOOT, a reset signal pin RST, a UART port pin, an I2C port pin, and a plurality of GPIO pins. The input end of the power conversion module 2 is connected with the power input Pin, and the output end thereof is respectively connected with the BMC controller 3 and the a/D conversion circuit 4 so as to supply power to the two.

In one embodiment, the voltage input range of each reference voltage pin is 0.6V to 18.6V, in this embodiment, the I2C port pins include a clock pin SCL and a signal pin SDA, and the number of GPIO pins is 6. The I2C port is for IPMB bus and can be set to Master or Slave, and the default is Master. TXD and RXD are respectively transmitted data and received data of a UART interface and are used for program starting, program upgrading and debugging maintenance of a module, and the default baud rate is 115200 bps. RST is a reset signal and is used for resetting an internal circuit of the module, the low level is effective, and the low level needs to be kept for more than 250 mu s. The starting signal pin Boot is used for setting a starting mode of the module, is locally started when set to be 0, is started by a UART when set to be 1, is internally provided with a pull-down resistor, defaults to be 0, and locally starts.

As shown in fig. 1 and 2, the power detection and control module 1, the power conversion module 2, the BMC controller 3, and the a/D conversion circuit 4 are encapsulated into an injection block 5 by an injection method, and each of the power input Pin, the power output Pin Pout, the reference voltage Pin Vref, the start signal Pin Boot, the reset signal Pin Rst, the UART port Pin, the I2C port Pin, and the GPIO Pin includes one or more pins 6; the pins 6 are inserted in the glue injection block 5 and are arranged in a dual-in-line mode. The definition of each pin is shown in FIG. 3, and tables-1 and-2.

TABLE-1 definition of the pins

TABLE-2 definition of each stitch (continuation)

As shown in fig. 4, in an application example, the bus management module (IPMB module) of the present embodiment is connected to a device to be managed (Function Unit). In this example, the IPMB module may be used for cell board health status tracking, testing the temperature, current, voltage and power of the cell board.

In another application example, as shown in fig. 5, a plurality of GPIOs of a bus management module (IPMB module) are respectively connected to a fan of a device to be managed so as to control the fan. In this embodiment, the bus management module (IPMB module) is connected to the host of the control system via an I2C bus.

In another application example, as shown in fig. 6, the bus management modules (IPMB modules) are connected in sequence via an I2C bus, and each bus management module is connected to a device to be monitored (function sub-system). The bus management module receives the instruction through the I2C bus and sends the instruction to the device to be monitored connected with the bus management module. Meanwhile, the bus management module can report the state parameters of the devices to be monitored through an I2C bus so as to facilitate the control system to monitor the states of the devices.

The present invention has been described in detail with reference to the embodiments shown in the drawings, and those skilled in the art can make various modifications to the present invention based on the above description. Therefore, certain details of the embodiments should not be construed as limitations of the invention, which are intended to be covered by the following claims.

Claims

1. The utility model provides a bus management module which characterized in that, includes power detection and control module, power conversion module, BMC controller and AD converting circuit, wherein:

2. The bus management module of claim 1, wherein the number of the reference voltage pins is three, and the voltage input range of each of the reference voltage pins is 0.6V to 18.6V.

3. The bus management module of claim 1, wherein the I2C port pins are to include a clock pin and a signal pin.

4. The bus management module of claim 1, wherein the number of GPIO pins is 6.

5. The bus management module of claim 1, wherein a pull-down resistor is disposed inside the enable signal pin.