CN117148946A - Distributed power supply management method - Google Patents
Distributed power supply management method Download PDFInfo
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- CN117148946A CN117148946A CN202311062002.9A CN202311062002A CN117148946A CN 117148946 A CN117148946 A CN 117148946A CN 202311062002 A CN202311062002 A CN 202311062002A CN 117148946 A CN117148946 A CN 117148946A
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- 238000007726 management method Methods 0.000 title claims abstract description 143
- 230000005540 biological transmission Effects 0.000 claims description 6
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- 230000002159 abnormal effect Effects 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/28—Supervision thereof, e.g. detecting power-supply failure by out of limits supervision
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/14—Handling requests for interconnection or transfer
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Abstract
The application provides a distributed power management method, which belongs to the technical field of power management, and particularly comprises the steps of connecting power management controllers and power modules of a plurality of computers to a group of power management buses, realizing unified management of power sources of the computers through the group of power management buses, and ensuring that other power management controllers can take over the work of the power management controllers under the condition that the individual power management controllers fail, and ensuring that the system can normally operate. Meanwhile, as the management of a plurality of power modules is realized by adopting only one group of power management buses, the design structure is simple, the reliability is high, and the computer interface resources and the interconnection resources are saved.
Description
Technical Field
The present application relates to the field of power management, and in particular, to a method for power management of a distributed computer.
Background
In the application scenario of an airborne distributed computer, a plurality of computers together form a processing platform. Each computer is provided with a power supply module, and meanwhile, each computer is internally provided with a power supply management controller, and the power supply management controller realizes the functions of output switch control, output current detection and the like of the power supply module. Since there is only one power management controller per computer, the local power module is actually in a "run away" state when this power management controller fails to implement local power management due to a failure. At this time, if abnormal conditions such as over-temperature and over-current of the power supply occur, the power supply management controller is damaged, so that the local power supply cannot be turned off in time, and further the power supply is damaged, and even other modules in the computer are damaged.
Disclosure of Invention
In view of this, the present application provides a distributed power management method, which solves the problems in the prior art, and in the case that a power management controller of a certain computer is damaged, the power management controllers in other computers can take over the power module of the computer, so as to avoid the power module from being in a runaway state, and ensure the normal operation of the system.
The application provides a distributed power supply management method, which adopts the following technical scheme:
a distributed power management method comprising the steps of:
connecting a plurality of power management controllers and a plurality of power modules of the computers to a same set of power management buses;
when the system works, the power management controllers connected to the power management bus start an preemption mechanism, only one of the power management controllers is successful in preemption, the power management controller which is successful in preemption obtains control rights to the power modules, the power management controller which is successful in preemption is a master controller, and other power management controllers are slave controllers;
after the right is successfully robbed by the main controller, enumeration is carried out on the power modules connected to the power management bus, and after the enumeration is successful, the main controller records all the power modules on the power management bus on a power module management table constructed in the main controller;
the system takes a time interval T as a working beat, and when the working beat arrives, the main controller reads the power module management table to acquire power module information and then sequentially and normally initiates management work of a plurality of power modules.
Optionally, each power management controller and each power module have unique ID numbers, and the power management controller and the power module are identified by the ID numbers in the system, and after the system is powered on, the power management controller and the power module respectively confirm the ID numbers.
Optionally, the system ID is a 4 bit code, the power management controller and the power module are both 5 bit ID codes, the ID of the power management controller is added with one bit 0 after the system ID, and the power module is added with one bit 1 after the system ID.
Optionally, when the working beat arrives, the main controller initiates management work on the plurality of power modules as follows: and sequentially reading the voltage, current and temperature information of each power supply module, comparing the voltage, current and temperature information of each power supply module with the stored normal working threshold, and if the voltage, current or temperature of one power supply module is found to exceed the normal working threshold, controlling the power supply module to turn off the power supply output of the power supply module through the power supply management bus.
Optionally, when the master controller fails, the slave controller monitors the state of the power management bus, if the bus is detected to be in an idle state all the time within 2T time, a preemption mechanism is started, the power management controller with successful preemption becomes a new master controller, and other power management controllers are slave controllers.
Optionally, the power management bus includes two signal lines SD1 and SD2, where the signal line SD1 is used as a data transmission clock line and also as an preemption signal line, and the signal line SD2 is used as a data transmission signal line and also as an preemption acknowledge line.
In summary, the application has the following beneficial technical effects:
1. the application has simple connection relation, adopts a group of power management buses to connect all power management controllers and power modules in the system, realizes the management of the power modules in the system, has simple structure and saves interface resources and interconnection resources of the system;
2. after a certain power supply controller in the system fails, other power supply controllers can take over the work of the power supply controller, so long as one power supply controller in the system can work normally, the normal operation of the system can be ensured, and the power supply management redundancy is high;
3. the power management bus has a fault isolation function, equipment faults connected to the power management bus do not affect the normal operation of the power management bus and other equipment, the faults cannot spread, and the system reliability is high.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of a distributed power management architecture of the present application;
FIG. 2 is a flow chart of a distributed computing power management method of the present application.
Detailed Description
Embodiments of the present application will be described in detail below with reference to the accompanying drawings.
Other advantages and effects of the present application will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present application with reference to specific examples. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. The application may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present application. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It is noted that various aspects of the embodiments are described below within the scope of the following claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the present disclosure, one skilled in the art will appreciate that one aspect described herein may be implemented independently of any other aspect, and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number of the aspects set forth herein. In addition, such apparatus may be implemented and/or such methods practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.
It should also be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present application by way of illustration, and only the components related to the present application are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.
In addition, in the following description, specific details are provided in order to provide a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects may be practiced without these specific details.
The embodiment of the application provides a distributed computer power management method.
As shown in fig. 1 and 2, a distributed power management method includes the following steps:
a plurality of power management controllers and a plurality of power modules of the computers are connected to the same set of power management buses.
When the system works, the power management controllers connected to the power management bus start an preemption mechanism, only one of the power management controllers is successful in preemption, the power management controller which is successful in preemption obtains control rights to the power modules, the power management controller which is successful in preemption is a master controller, and other power management controllers are slave controllers.
After the right is successfully robbed by the main controller, enumeration is carried out on the power modules connected to the power management bus, and after the enumeration is successful, the main controller records all the power modules on the power management bus on a power module management table internally constructed by the main controller.
The system takes a time interval T as a working beat, and when the working beat arrives, the main controller reads the power module management table to acquire power module information and then sequentially and normally initiates management work of a plurality of power modules.
The power management bus is composed of 2 signal lines SD1 and SD 2. The signal line SD1 has two functions: 1. 2, as a data transmission clock line, as a preemption signal line; the signal line SD2 has two functions: 1. as a data transmission signal line, 2. As a preemption acknowledge line. Based on the functions of the signal lines SD1 and SD2 in the power management bus, the power management bus functions as follows: 1. a power management controller connected to the power management bus may preempt power through the power management bus; 2. the power management controller with successful preemption can manage the power module through the power management bus.
The power management bus has the function of fault open circuit, namely any equipment connected to the power management bus, whether the power management controller or the power module, can automatically cut off the connection with the power management bus when faults occur, and ensures that the faults can not influence the normal operation of the power management bus and the normal operation of other equipment connected to the power management bus.
Each of the power management controller and the power module has a unique ID number by which the power management controller and the power module are identified in the system. After the system is electrified, the power management controller and the power module respectively confirm ID numbers, and the ID number allocation rule is as follows: each computer has a unique system ID, the system ID of the computer is 4-bit code, specifically, SYSID [4:1], the power management controller and the power module are both 5-bit ID code, the ID of the power management controller is added with one-bit '0' after the system ID, and the power module is added with one-bit '1' after the system ID. Assuming that the system ID is XXXX (e.g., 0110), the power management controller ID is 01100 and the power module ID is 01101. By the above method, each power management controller and power module in the system is assigned a unique ID number.
When the whole system starts to work, the power management controller connected to the power management bus starts a preemption mechanism, only one of the power management controllers can successfully preempt the right, and the power management controller with the successfully preempted right obtains the control right of the power modules. At this time, the power management controller for which the robbery is successful is called a "master controller", and the other power management controllers are called "slave controllers".
After the right is successfully robbed by the main controller, enumeration is carried out on the power modules connected to the power management bus, and after the enumeration is successful, the main controller records all the power modules on the power management bus on a power module management table internally constructed by the main controller.
The system takes a time interval T as a working beat, and when the working beat arrives, the master controller and the slave controller adopt different processing strategies. Specifically, when the working beat arrives, the main controller reads the power module management table, acquires the power module information, and then sequentially and normally initiates management work on a plurality of power modules. When the working beat arrives, the main controller initiates management work for a plurality of power supply modules as follows: and sequentially reading the voltage, current and temperature information of each power supply module, comparing the information with a stored normal working threshold, and if the voltage, current or temperature of one power supply module is found to exceed the normal working threshold, controlling the power supply module to close the power supply output of the power supply module through the power supply management bus, so that the power supply module is prevented from being damaged seriously or other equipment is prevented from being damaged due to long-time working under abnormal conditions.
When the main controller fails and cannot manage the power module through the power management bus, the power management bus is in an idle state at the moment, when the working beat arrives, the slave controller detects the power management bus state, when the power management bus is detected to be in the idle state, the slave controller continuously detects the power management bus state in the next 2T time, if the power management bus is always in the idle state in the 2T time, the slave controller starts a preemption mechanism, and the slave controller obtaining control right becomes a new main controller.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present application should be included in the present application. Therefore, the protection scope of the application is subject to the protection scope of the claims.
Claims (6)
1. A distributed power management method, comprising the steps of:
connecting a plurality of power management controllers and a plurality of power modules of the computers to a same set of power management buses;
when the system works, the power management controllers connected to the power management bus start an preemption mechanism, only one of the power management controllers is successful in preemption, the power management controller which is successful in preemption obtains control rights to the power modules, the power management controller which is successful in preemption is a master controller, and other power management controllers are slave controllers;
after the right is successfully robbed by the main controller, enumeration is carried out on the power modules connected to the power management bus, and after the enumeration is successful, the main controller records all the power modules on the power management bus on a power module management table constructed in the main controller;
the system takes a time interval T as a working beat, and when the working beat arrives, the main controller reads the power module management table to acquire power module information and then sequentially and normally initiates management work of a plurality of power modules.
2. The method of claim 1, wherein each of the power management controller and the power module has a unique ID number, the power management controller and the power module are identified in the system by the ID number, and after the system is powered on, the power management controller and the power module perform the identification of the ID number respectively.
3. The distributed power management method of claim 2, wherein the system ID is a 4-bit code, the power management controller and the power module are each a 5-bit ID code, the ID of the power management controller is added with one bit of 0 after the system ID, and the power module is added with one bit of 1 after the system ID.
4. The distributed power management method according to claim 1, wherein the main controller initiates management work for the plurality of power modules when a work beat arrives as follows: and sequentially reading the voltage, current and temperature information of each power supply module, comparing the voltage, current and temperature information of each power supply module with the stored normal working threshold, and if the voltage, current or temperature of one power supply module is found to exceed the normal working threshold, controlling the power supply module to turn off the power supply output of the power supply module through the power supply management bus.
5. The distributed power management method of claim 1, wherein when the master control fails, the slave controller monitors the power management bus state, and if the bus is detected to be in an idle state for a 2T period of time, the preemption mechanism is started, the power management controller with successful preemption becomes a new master controller, and the other power management controllers are slave controllers.
6. The power management method according to claim 1, wherein the power management bus includes two signal lines SD1 and SD2, respectively, the signal line SD1 is used as a data transmission clock line and also as an preemption signal line, and the signal line SD2 is used as a data transmission signal line and also as an preemption acknowledge line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311062002.9A CN117148946A (en) | 2023-08-22 | 2023-08-22 | Distributed power supply management method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311062002.9A CN117148946A (en) | 2023-08-22 | 2023-08-22 | Distributed power supply management method |
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| Publication Number | Publication Date |
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| CN117148946A true CN117148946A (en) | 2023-12-01 |
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| CN202311062002.9A Pending CN117148946A (en) | 2023-08-22 | 2023-08-22 | Distributed power supply management method |
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| CN (1) | CN117148946A (en) |
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- 2023-08-22 CN CN202311062002.9A patent/CN117148946A/en active Pending
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