WO2020011255A1

WO2020011255A1 - Single board, backplane switch and method for powering on/off single board

Info

Publication number: WO2020011255A1
Application number: PCT/CN2019/095836
Authority: WO
Inventors: 候海军
Original assignee: 中兴通讯股份有限公司
Priority date: 2018-07-12
Filing date: 2019-07-12
Publication date: 2020-01-16
Also published as: CN110719236B; CN110719236A

Abstract

The present application provides a single board, a backplane switch, and a method for powering on/off a single board. The single board comprises a power monitoring module and a programmable control module, both being able to be configured to control a connection situation between at least one single board power supply and the single board at different times according to power requirements of the single board itself and power on/off the single board.

Description

Single board, backplane switch, and method for powering off single board

This application claims priority from a Chinese patent application filed with the Chinese Patent Office on July 12, 2018, with application number 201810766064.0, the entire contents of which are incorporated herein by reference.

Technical field

This application relates to the field of communications, for example, to a single board, a backplane switch, and a method for powering off a single board.

Background technique

In related technologies, with the development of the network information age, data has exploded. Correspondingly, the requirements for data security, centralized data management, reliable data transmission, and fast data processing have been raised. Data centers are Born to meet these needs applications. In order to support and meet the requirements of data center construction under the new situation, the switch system located at the core has become a key device. At present, the mainstream data center switches use a control, service, and switching function separation, and the middle backplane is orthogonally connected. Each plane is implemented by a separate circuit board, such as the main control board, service board, and switch board. After the AC / DC input power of the switch is converted to -48V, it is input to each board, and then converted to the required power voltage on each board. Since each board in the switch uses more components, it requires There are many power supply modules, and the power supply of these power supplies generally has timing requirements. In order to flexibly control the power-on and power-off of each power supply, a programmable logic device is generally used for control.

In view of the fact that the controllable single board power-on and power-off control process in the related art is relatively single, there is currently no effective improvement scheme.

Summary of the invention

The following is an overview of the topics detailed in this article. This summary is not intended to limit the scope of protection of the claims.

The embodiments of the present application provide a single board, a backplane-type switch, and a method for powering off a single board, so as to avoid at least a situation in which the controllable board power-on and power-off control process in the related art is relatively single.

According to an embodiment of the present application, a single board is provided, including: a power supply monitoring module and a programmable control module, wherein the power supply monitoring module or the programmable control module is used to control at least one at different times. The board power is used to power off the board.

According to another embodiment of the present application, a backplane switch is also provided, including: at least two boards, where each board includes a power monitoring module and a programmable control module, wherein the power monitoring module or The and programmable control module are used to control at least one board power source to power off the board at different times.

According to another embodiment of the present application, a method for powering on and off a single board is also provided, which includes: a power monitoring module and a programmable control module to obtain power requirements of the current single board; the power monitoring module or the programmable control module, Controlling at least one board power source to power off the board at different times according to the power demand.

According to still another embodiment of the present application, a storage medium is also provided. The storage medium stores a computer program, and the computer program is configured to execute the method in any one of the foregoing method embodiments when running.

According to another embodiment of the present application, an electronic device is further provided, which includes a memory and a processor. The memory stores a computer program, and the processor is configured to run the computer program to execute any one of the foregoing. Method in the method embodiment.

After reading and understanding the drawings and detailed description, other aspects can be understood.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The schematic embodiments of the present application and the descriptions thereof are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

FIG. 1 is a flowchart of a method for powering on and off a board according to an embodiment of the present application; FIG.

FIG. 2 is a veneer structure diagram according to the related art; FIG.

3 is a schematic structural diagram of a programmable single-board power-down control device according to another embodiment of the present application;

4 is a flowchart of a programmable single-board power-down control method according to another embodiment of the present application;

5 is a flowchart of online upgrade of a single board according to another embodiment of the present application;

6 is a structural diagram of an online upgrade of a power monitoring module according to a second exemplary embodiment;

7 is a structural diagram of an online upgrade of a programmable control module according to an exemplary embodiment;

8 is a schematic diagram of a method for online upgrade of each board of a backplane switch system according to a third exemplary embodiment;

FIG. 9 is a diagram of an online upgrading device of a power supply monitoring module and a programmable control module of a service board or a power supply monitoring module and a programmable control module of a switch board in a backplane switch system according to a third exemplary embodiment; FIG.

10 is a flowchart of a programmable single-board power-down control method according to the present application;

11 is a structural diagram of a programmable single-board power-off and control device according to the present application;

FIG. 12 is a structural diagram of a device supporting power control switching according to the present application.

detailed description

Hereinafter, the present application will be described in detail with reference to the drawings and embodiments. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

It should be noted that the terms “first” and “second” in the specification and claims of the present application and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

According to an embodiment of the present application, a method for powering on and off a single board is provided. FIG. 1 is a flowchart of a method for powering on and off a single board according to an embodiment of the present application. As shown in FIG. 1, the method includes step S102. And step S104.

In step S102, the power monitoring module and the programmable control module obtain the power requirements of the current board.

In step S104, the power supply monitoring module or the programmable control module controls one or more single board power sources to power off and on the single board according to the power demand at different times.

With the above technical solution, the board includes a power monitoring module and a programmable control module, both of which can be set to control the connection between one or more board power sources and the board according to the power requirements of the board itself. With the above technical solution, there are two modules to alternately control the power on and off of the board. For a multi-power board, the board is kept powered on during the upgrade of the board's power logic, that is, the module that is in a rest state performs the upgrade, and another module controls the power supply to power on and off to ensure that the business is not interrupted during the upgrade and avoids related technologies. The controllable board's power-on and power-off control process is relatively single, and the two modules can alternately rest or perform operations such as upgrading.

In one embodiment, the power supply monitoring module or the programmable control module controls one or more single-board power supplies to power off and on the single board according to the power requirements at different times, including one of the following: The monitoring module controls one or more single-board power supplies to power off the single-board according to the power demand; when the power-supply monitoring module is in an upgraded state or stops working, the programmable control module controls one or more single-board power supplies. The board power is used to power off the board.

In one embodiment, the power monitoring module controls one or more single-board power supplies to power off the single board according to the power demand, including: the power monitoring module controls one or more single-board power supplies for all During the process of powering on and off the board, monitor the voltage value of the power supply of the one or more boards; if any voltage value of the power supply of any board is abnormal, report the abnormality to the center of the board Processor CPU.

In an embodiment, the power monitoring module or the programmable control module controls one or more single board power supplies to power off and on the single board according to the power demand at different times, including: the power monitoring module sends A first control signal for controlling the one or more single-board power supplies to a selector to power off the single-board; the programmable control module sends a control signal for controlling the one or more single-board power supplies to the selector; A second control signal for powering on and off the board is sent to the selector; the selector sends the first control signal or the second control signal to the power of each board.

In one embodiment, the power monitoring module or the programmable control module controls one or more single-board power supplies to power off and on the single board according to the power demand at different times. The method further includes: The upgrade file transmitted in advance by the central processing unit CPU of the single board completes the upgrade of a power monitoring module or a programmable control module that currently does not control the power supply of the one or more single boards to the single board.

In one embodiment, the single board is connected to the network, and the upgrade file is downloaded remotely.

In one embodiment, the power supply monitoring module or the programmable control module prohibits operation of the power supply monitoring module before controlling one or more single-board power supplies to power off the single-board based on the power demand at different times. The power-on and power-off sequencing logic in the method is used to control one or more board power supplies to power on and off on a board; in the one or more board power supplies, the current standby power is determined. The single board power supply is tested, and the single board power supply to be tested is tested by the programmable control module.

According to an embodiment of the present application, a single board is provided, including: a power monitoring module and a programmable control module, wherein the power monitoring module or the programmable control module is configured to control one at different times. Or multiple single board power supplies power off the single board.

In the above solution, there are two modules to alternately control the power on and off of the board. For multi-power boards, the board power logic is maintained during the upgrade process, that is, the modules in the rest state perform the upgrade. The controller controls the power supply of the board to power on and off to ensure that services are not interrupted during the upgrade process, avoiding the situation where the control process of the controllable board in the related technology is relatively single. The two can alternately rest or perform upgrades.

In one embodiment, controlling one or more single-board power supplies to power on a single board includes: controlling the timing of one or more single-board power supplies to power on a single board. After one or more board power supplies are powered on for the board, they are converted to the required power supply voltage on the board.

In an embodiment, for a schematic diagram of the power supply monitoring module and the programmable control module, reference may be made to the description of FIG. 12 in the subsequent embodiments.

In an embodiment, the power monitoring module is further configured to control the voltage value of the one or more single-board power supplies during the power-off of the single-board or the single-board power supplies, and is set to When an abnormal voltage value of the power supply of any single board is detected, the abnormality is reported to the central processing unit of the single board.

In an embodiment, the selector is configured to receive a control signal sent by the power monitoring module and the programmable control module, which is used to control one or more single-board power supplies to power off the single-board. It is assumed that one control signal is selected from two control signals and sent to the one or more single-board power supplies.

In one embodiment, the single board further includes: a central processing unit configured to send an upgrade file to the power monitoring module or the programmable control module; the power monitoring module or the programmable control module, configured to The upgrade is completed according to the upgrade file without controlling the power of one or more boards to power off the boards. When the CPU is connected to the network, the above-mentioned upgrade file or logic file can be downloaded from the network. With the above-mentioned upgrade scheme, one of the power monitoring module or the programmable control module works and is set to control the connection state between the power supply and the board, and the other is One of the rest states can perform the upgrade operation, that is, continuous power is achieved, and the upgrade process is completed under the condition that the power supply is connected to the board.

According to another embodiment of the present application, a backplane switch is also provided, including: at least two boards, where each board includes a power monitoring module and a programmable control module, wherein the power monitoring module or The programmable control module is used to control one or more single-board power supplies to power off and on the single board at different times.

The following describes in detail with reference to another embodiment of the present application.

FIG. 2 is a structural diagram of a board according to related technologies. As shown in FIG. 2, a current control system for a power supply mainly includes an input power monitoring module, a power module, and a programmable control module. The input power monitoring module monitors the power status. The programmable control module operates according to a pre-programmed logic file, and performs switching control of the power source according to the received power state information.

Although the scheme in the related art uses a programmable logic device for power-on and power-off control, there are two problems.

1. During the board debugging and maintenance stage, especially the power test stage, you need to repeatedly power on and off each power module. At this time, if you directly operate the programmable control module (such as Complex Programmable Logic Device (CPLD)) ) Logic control, it is easy to cause abnormalities in the normal power-on logic; if it is operated by welding the enable terminal of the power module, the efficiency is low and the welding error is easy.

2. The logic upgrade of the power monitoring module can only be upgraded after the board is powered off and connected to the computer through the sintered socket on the board. The scalability is poor. After the board is produced and shipped, if there is a power logic failure, repair it Personnel can only go to the site to upgrade, which is time-consuming and laborious.

The present application provides a programmable method and device for controlling power on and off a single board, so that during the board debugging and maintenance process, each power module can be flexibly controlled to power on and off without affecting the normal logic sequence function. The remote online upgrade function of the power supply monitoring logic device is programmed to complete the power supply monitoring logic upgrade during the normal operation of the board, without interrupting the current business.

FIG. 3 is a schematic structural diagram of a programmable single-board power-off control device according to another embodiment of the present application. As shown in FIG. 3, it includes the following modules: a power supply monitoring module (programmable power supply timing control and voltage monitoring chip), Power supply module, programmable control module (CPLD); also includes selector module, CPU module, etc.

The power supply monitoring module described in this application integrates voltage monitoring and programmable timing control functions, and can use only one chip to realize the design scheme in the related technology, which saves costs and makes the design simpler. The input terminal of the power monitoring module is connected to the output of each power module to achieve the monitoring of each voltage. The output terminal connects the control signal with the set timing to the programmable control module and the selector; the programmable control module can also output the power control signal to Selector: The selector can select one or two of the control signals of the power supply monitoring module and the programmable control module, so as to realize the power supply monitoring module or the programmable control module to control the power supply of each power supply. The power monitoring module itself has voltage monitoring and logic programmable functions to control the normal working sequence of the board power supply. The programmable control module (CPLD) is a programmable logic device and does not have a voltage monitoring function itself, so it cannot completely replace the power monitoring module. Functions. Since the power module of the board is controlled by an enable control signal, this control function can be implemented by a power monitoring module or a programmable control module, and the two can work independently without affecting each other.

The CPU module is applied to each board as a control center. The online upgrade function of the power supply monitoring module described in this application requires the CPU module to assist in the implementation. The network connection module can connect the board to the network to achieve remote control of the board, and download the software / logic version file to the FLASH. The CPU connects to a CPLD through the CPU bus (localbus). Because the logic device program is through JTAG The interface is sintered, so the CPLD converts the software / logic version file into a Joint Test Working Group (JTAG) interface signal and outputs it to a selector on the board, which can be gated to the JTAG of the power monitoring module. The interface can also be strobe output to the JTAG interface of the programmable control module, so as to realize the online upgrade of the software / logic version.

FIG. 4 is a flowchart of a programmable single-board power-down control method according to another embodiment of the present application. As shown in FIG. 4, the method includes steps 401 to 405.

In step 401, the power monitoring module (a programmable power supply timing control and voltage monitoring chip) is selected by default when the board is started. The power monitoring module controls the board to power on according to the timing. The chip can realize the timing by simple programming. control.

In step 402, in the process of controlling the power supply of each board, the power monitoring module monitors whether each voltage is normal and monitors the output voltage value; in the case of abnormal voltage value, the power monitoring module will report a single The power supply of the board is abnormally interrupted and processed by the central processing unit (CPU). When the voltage is normal, the board can be powered on normally.

In step 403, whether the selector is gated by the programmable control module for control. If the selector is not gated by the programmable control module for control, continue to switch through the power monitoring module, and go to step 404; When the control is performed through the programmable control module, the switching is confirmed, and the process proceeds to step 405.

In step 404, the power monitoring module is gated by default, that is, no switching is required. After that, the power monitoring module will continuously monitor whether each power voltage value is normal.

In step 405, the programmable power control module (CPLD) controls the power supply. At this time, three kinds of operation functions can be realized.

Function 1. The programmable control module (CPLD) performs power-on and power-off control of the power module.

Function 2. Start online upgrade of the power monitoring module. It has been described earlier that both the power supply monitoring logic device and the programmable control module (CPLD) can work independently. After the programmable control module (CPLD) takes over control of the power supply module, the power supply monitoring logic device can start online upgrade. After the upgrade is completed, You can switch to the power monitoring module to continue control, and the board can run normally during the whole process.

Function 3. Debug mode. Testing, debugging, or repairing the power module requires frequent switching of the power module. At this time, by setting the corresponding power control register in the programmable control module (CPLD), the switching signal of the power module can be easily implemented. control.

The following further describes with reference to example embodiments.

Example embodiment one: power control switching method

FIG. 12 is a diagram of a device supporting power control switching according to the present application. As shown in FIG. 12, the power monitoring module includes voltage monitoring analog / digital (Analog / Digital, A / D), and programmable logic (Programmable Logic). Device (PLD). The programmable control module includes a power status register, a power control register, and the like. The power status register and the power control register are both customized. The example implementation includes the following five steps.

In the first step, the power supply monitoring module has the function of voltage monitoring, and can transmit the voltage information of each power supply to the programmable control module, which is stored in the power supply status register.

In the second step, the programmable logic device PLD in the power supply monitoring module runs according to the set logic sequence file, and outputs the power control signal to the selector. After the selector is selected, the power supply module can be controlled to power on and off. ; After each power supply is normally powered on, the power supply monitoring module passes the power-on result to the programmable control module, corresponding to the "other signals" in Figure 12, so that the programmable control module knows the status and switching information of each power supply module.

In the third step, some power control registers are defined in the programmable control module, corresponding to controlling the switches of each power module one by one. According to the power information obtained in the third step, the programmable control module can now take over the status of the power module. control.

In the fourth step, the selector selects the programmable control module. The power module is controlled by the programmable control module. The power monitoring module is in an idle state at this time and can perform operations such as online upgrade.

In the fifth step, when the power monitoring module is required to control, the selector can be used to select the power monitoring module.

As a result, the power control switching of the entire board is realized, and the power supply will not be powered off during the switching process, and services are not affected.

Example embodiment two: online upgrade of power monitoring module and programmable control module

FIG. 6 is a structural diagram of an online upgrade of a power monitoring module according to the second exemplary embodiment, and FIG. 7 is a structural diagram of an online upgrade of a programmable control module according to the second exemplary embodiment, as shown in FIGS. 6 and 7 Refer to FIG. 6 for the module online upgrade device and FIG. 7 for the online upgrade device of the programmable control module (CPLD). FIG. 5 is a flowchart of online upgrade of a single board according to another embodiment of the present application. As shown in FIG. 5, the method includes steps 501 to 505.

In step 501, the switch accesses the network through the network connection module, and remotely downloads the software / logic file to be upgraded and stores it in a flash memory (FLASH).

In step 502, it is determined whether the board is upgraded. The initial default logical upgrade of the system needs to be confirmed to prevent random changes of the system logical version. If the board upgrade is not confirmed, wait forever; after the board confirms the upgrade, see step 503.

In step 503, the CPU transmits the upgrade file to the CPLD, and the CPLD outputs the upgrade file as a JTAG signal.

In step 504, it is confirmed whether the power monitoring module is upgraded. In the case where the power monitoring module is confirmed to be upgraded, the selector selects the power monitoring module for upgrading; when it is confirmed that the power monitoring module is not upgraded, the selector is gated to the programmable control. The module is upgraded.

Since the power monitoring module and the programmable control module are both programmable logic devices, both can be upgraded. At this time, it is necessary to determine which device to upgrade, and the selector will select the device to be upgraded.

In step 505, the board is operating normally. After the programmable logic device upgrade is completed, the new software / logic version takes effect after the device is reset, and then the new logic software version can be used to start working.

The method of the present application realizes the remote control logic upgrade without affecting the normal business of the system. The related technical solutions cannot be upgraded remotely, and the system has poor scalability.

Example Embodiment 3: Online Upgrade of Backplane Switch Power Management System

9 is a diagram of an online upgrading device of a power supply monitoring module and a programmable control module of a service board or a power supply monitoring module and a programmable control module (CPLD) of a switch board in a backplane switch system according to the third embodiment, as shown in FIG. 9 As shown, the system includes a main control board, a service board, and a switch board; the online upgrade process of the service board and the switch board can be understood by referring to FIG. 8. FIG. 8 is a schematic diagram of an online upgrade method of each board of a backplane switch system according to the third embodiment, as shown in FIG. 8, which includes steps 801 to 806.

In step 801, the main control board is connected to the network, and the software / logic file to be upgraded is remotely downloaded and stored in the flash of the board.

In step 802, the CPU module of the main control board outputs the file to be upgraded to the backplane, and the subsequent backplane sends the board to be upgraded.

In step 803 and step 804, the service board and the switch board each put the received upgrade file into the flash of the board.

In steps 805 and 806, the subsequent steps are the same as the above-mentioned box switch upgrade. After the upgrade is completed, the board operates normally with the new logical version.

The method of the present application realizes the remote logical upgrade of each board in the entire switch system, does not affect the normal business of the system, is convenient for upgrade and maintenance, and has high reliability.

Example embodiment four: single board power debugging

FIG. 11 is a structural diagram of a programmable single-board power-down control device according to the present application, and FIG. 10 is a flowchart of a programmable single-board power-down control method according to the present application, as shown in FIGS. 10 and 11. It shows that the power supply is debugged and maintained without affecting the normal power-on sequence logic of the board. Assume that this is a single board power network diagram. The power monitoring system described in this application will monitor the six voltage values, and add corresponding registers to the programmable control module to control the switches of the six power modules. The board has timing requirements. The 12V is powered on at the earliest, and the 1.2V is powered on at night. The normal power-on sequence can be controlled by the programmable power monitoring module to turn on the power of each board in turn according to requirements.

During the debugging and maintenance process, because the power monitoring module stores the normal power-on sequence logic, this application does not perform any operation on the power monitoring module, that is, does not change the normal power-on logic of the power monitoring module. Register operations, such as the three cases listed below.

1. For example, if you need to test a 3.3V power supply, you only need to open the register of power supply 1 through a programmable control module (CPLD), and then independently control the switch of power supply 3.

2. For example, to test the effect of 5V on 1.2V voltage, you only need to independently control the registers of power supply 1, 2, and 6 through a programmable control module (CPLD), and other power supplies are turned off.

3. For example, to test the effect of 5V on 1V voltage, you only need to independently control the registers of power supply 1, 2, and 4 through a programmable control module (CPLD), and other power supplies are turned off.

For CPLDs, the switches of each power module can be controlled by operating registers, which can be operated when the CPU is working normally, without changing the timing logic of the power monitoring module at all. The CPLD described in this application is equivalent to a standby controller, and the power monitoring module is the active controller. In the related technology, there is only one controller. If you directly operate it, it will easily disrupt the original control logic.

The method used in this application adopts the method of independent programmable power chip combined with CPLD to realize the monitoring and timing control of each power supply on the board and the remote online upgrade function of the programmable logic device. Compared with related technologies, the single board The hardware and software / logic have better integrity, which improves the development, debugging, and maintenance efficiency of the entire product, and has better reliability and scalability.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by means of software plus a necessary universal hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is Better implementation. Based on such an understanding, the technical solution of this application that is essentially or contributes to related technologies can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, and optical disk) ) Includes several instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in the embodiments of the present application.

An embodiment of the present application further provides a storage medium, where the computer program is stored, wherein the computer program is configured to execute the method described in any one of the embodiments when running.

An electronic device according to an embodiment of the present application includes a memory and a processor. The memory stores a computer program, and the processor is configured to run the computer program to execute the computer program described in any one of the foregoing embodiments. method.

In one embodiment, the electronic device has a function of connecting to a network, and can remotely download files such as upgrade files.

Those skilled in the art should understand that the above modules or steps of the present application may be implemented by a general-purpose computing device, and they may be centralized on a single computing device or distributed on a network composed of multiple computing devices. For example, they may be implemented with program code executable by a computing device, so that they may be stored in a storage device and executed by the computing device, and in some cases may be performed in a different order than shown here Or the steps described, or they are made separately into individual integrated circuit modules, or multiple modules or steps in them are made into a single integrated circuit module. As such, this application is not limited to any particular combination of hardware and software.

Claims

A board includes:

The power supply monitoring module and the programmable control module, wherein the power supply monitoring module or the programmable control module is configured to control at least one board power source to power off the board at different times.
The veneer according to claim 1,

The power monitoring module is further configured to monitor the voltage value of the at least one board power supply during the process of controlling at least one board power supply to power off and on the board; and detect the voltage of any one board power supply. When the value is abnormal, the abnormality is reported to the central processing unit of the board.
The veneer according to claim 1, further comprising a selector;

The selector is configured to receive control signals sent by the power monitoring module and the programmable control module, respectively, for controlling at least one board power supply to power off the board, and control the two boards according to preset rules. A control signal is selected from the signals and sent to the at least one single board power supply.
The single board according to claim 1, further comprising a central processing unit;

The central processor is configured to send an upgrade file to the power monitoring module or the programmable control module;

The power monitoring module or the programmable control module is configured to complete the upgrade according to the upgrade file when the power of at least one board is not controlled to power off the board.
A backplane switch includes:

At least two boards, each of which includes a power monitoring module and a programmable control module, wherein the power monitoring module or the programmable control module is configured to control the power of at least one board at different times. The board is powered off.
A method for powering on and off a board includes:

The power monitoring module and the programmable control module obtain the power requirements of the current board;

The power monitoring module or the programmable control module controls at least one board power source to power off and on the board according to the power demand at different times.
The method according to claim 6, wherein the power monitoring module or the programmable control module controls at least one board power supply to power off and on the board according to the power demand at different times, including one of the following:

The power monitoring module controls at least one board power supply to power off the board according to the power demand;

When the power supply monitoring module is in an upgraded state or stops working, the programmable control module controls at least one board power supply to power off the board.
The method according to claim 7, wherein the power monitoring module controls at least one board power supply to power off and on the board according to the power demand, comprising:

The power monitoring module monitors the voltage value of the at least one board power supply during the process of controlling at least one board power supply to power off the board;

When an abnormal voltage value of the power supply of any single board is detected, the abnormality is reported to the central processing unit CPU of the single board.
The method according to claim 6, wherein the power monitoring module or the programmable control module controls at least one board power supply to power off and on the board according to the power demand at different times, comprising:

Sending, by the power monitoring module, a first control signal for controlling the at least one board power supply to power down the board to a selector;

The programmable control module sends a second control signal for controlling the at least one single board power supply to power down the single board to the selector;

The selector sends the first control signal or the second control signal to at least one single-board power supply.
The method according to claim 6, after the power source monitoring module or the programmable control module controls at least one board power source to power off and on the board according to the power demand at different times, the method further comprises:

According to the upgrade file transmitted in advance by the central processing unit CPU of the single board, the power supply monitoring module or programmable control module that does not currently control the power of the at least one single board connected to the single board is upgraded.
The method according to claim 6, before the power source monitoring module or the programmable control module controls at least one board power source to power off the board at different times according to the power demand, the method further comprises:

It is forbidden to operate the power-on and power-off sequence logic in the power supply monitoring module, wherein the power-on and power-off sequence logic is used to control at least one board power supply to a power-on and power-off sequence of a board on and off;

Among the at least one single-board power source, determine the current single-board power source to be tested, and test the single-board power source to be tested by the programmable control module.
A storage medium stores a computer program therein, wherein the computer program is configured to execute the method according to any one of claims 6 to 11 when running.
An electronic device includes a memory and a processor, and a computer program is stored in the memory, and the processor is configured to run the computer program to perform the method according to any one of claims 6 to 11.