CN103902006A - Power-off protection system and method - Google Patents

Abstract

The invention provides a power-off protection system and method. The method is as follows: continuously detect the voltage, current, and/or temperature information of all nodes; judge whether each detected voltage, current, and/or temperature information is abnormal; The switch connected to the abnormal node is turned off, so that the power supply corresponding to the abnormal node should be disconnected to protect the abnormal node. The power-off protection system and method of the multi-node system of the present invention uses a voltage divider to monitor the information of each node in the multi-node system in real time, and when the system is abnormal, the power supply of the abnormal node is disconnected in time, and each node in the system is powered off. Provides power failure protection.

Description

Power failure protection system and method

technical field

The invention relates to a power-off protection system and method, in particular to a power-off protection system and method for a multi-node system.

Background technique

Existing various motherboards generally have the function of self-power-off protection, that is, when the information such as voltage, current and temperature of itself is abnormal, the power supply is cut off so as to protect the motherboard from being burned. However, in a system composed of multiple nodes, there is no effective power-off protection method.

Contents of the invention

In view of this, it is necessary to provide a power-off protection system and method for a multi-node system.

A power-off protection system applied to a multi-node system. The multi-node system includes several voltage supply units, a voltage divider and several nodes. The voltage supply unit is used to provide working power to the multi-node system. The provided operating power is converted into various operating voltages and output to the nodes. The multi-node system also includes switches with the same number as the nodes. One end of each switch is connected to the voltage divider, and the other end is respectively connected to a node. The power failure protection system runs on the voltage divider. The power-off protection system includes: a monitoring module for continuously detecting voltage, current, and/or temperature information of all nodes; an abnormal judgment module for judging each detected voltage, current, and/or Whether the temperature information is abnormal; and a control module, which is used to control the disconnection of the switch connected to the abnormal node when an abnormality occurs, so that the power supply corresponding to the abnormal node should be disconnected, and the abnormal node Protect.

A power-off protection method applied to a multi-node system, the multi-node system includes several voltage supply units, a voltage divider board and several nodes, the voltage supply unit is used to provide working power for the multi-node system, and the voltage divider board supplies the voltage The provided operating power is converted into various operating voltages and output to the nodes. The multi-node system also includes switches with the same number as the nodes. One end of each switch is connected to the voltage divider, and the other end is respectively connected to a node. The power-off protection method operates on the voltage dividing board. The method is as follows: continuously detect the voltage, current, and/or temperature information of all nodes; judge whether each detected voltage, current, and/or temperature information is abnormal; The switch connected to the abnormal node is turned off, so that the power supply corresponding to the abnormal node should be disconnected to protect the abnormal node.

The power-off protection system and method for a multi-node system of the present invention uses a voltage divider to monitor the information of each node in the multi-node system in real time, and when the system is abnormal, the power supply of the node where the abnormality occurs is promptly disconnected, and each node in the system is powered off. Provides power failure protection.

Description of drawings

FIG. 1 is a system structure diagram of a multi-node system in a preferred embodiment of the present invention.

FIG. 2 is a block diagram of a power-off protection system applied to a multi-node system according to a preferred embodiment of the present invention.

Fig. 3 is a flowchart of a method for power-off protection of a multi-node system according to a preferred embodiment of the present invention.

Explanation of main component symbols

Multi-node system 10

Voltage supply unit 101, 102, ..., 10m

Divider 200

Node 301, 302, ..., 30n

Switches 401, 402, ..., 40n

Power failure protection system 20

Monitoring module 201

Abnormal Judgment Module 202

Sending module 203

Control Module 204

The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings.

Detailed ways

Please refer to FIG. 1 , which is a system structure diagram of a multi-node system in a preferred embodiment of the present invention. The multi-node system 10 includes several voltage supply units (101, 102, . . . , 10m), a voltage dividing board 200, and several nodes (301, 302, . . . , 30n). Wherein, each node can be a server or a mainboard.

The voltage supply units ( 101 , 102 , . . . , 10 n ) are used to provide working power to the multi-node system 10 . The voltage dividing board 200 converts the operating power provided by the voltage supply units (101, 102, ..., 10n) into various operating voltages, and outputs them to the nodes (301, 302, ..., 30n). The voltage dividing board 200 is a programmable chip, such as NXP LPC1768 specifically.

The multi-node system 10 also includes switches ( 401 , 402 , . . . , 40n ) having the same number as nodes ( 301 , 302 , .

FIG. 2 is a block diagram of a power-off protection system applied to a multi-node system according to a preferred embodiment of the present invention. The power failure protection system runs on the voltage dividing board 200 . The power-off protection system 20 includes a monitoring module 201 , an abnormal judgment module 202 , a sending module 203 and a control module 204 . The specific functions of each module will be described in conjunction with Figure 3

Fig. 3 is a flowchart of a method for power-off protection of a multi-node system according to a preferred embodiment of the present invention. The power-off protection method runs on the voltage dividing board 200 .

In step S21, the monitoring module 201 continuously detects the voltage, current, and/or temperature information of all nodes (301, 302, ..., 30n) and voltage supply units (101, 102, ..., 10m);

In step S22, the abnormality judging module 202 judges whether each detected voltage, current, and/or temperature information is abnormal, and if so, the process goes to step S23; The normal range of the stored voltage, current, and/or temperature information, judging whether the detected voltage, current, and/or temperature information exceeds the normal range, and if it exceeds the range, it is considered abnormal;

In step S23, the sending module 203 informs all nodes (301, 302, ..., 30n) that the multi-node system 10 has an abnormality and specific information about the abnormality, and the specific information about the abnormality includes the location of the abnormal node and/or the voltage supply unit ( For example, the node 302 is abnormal), and/or there is abnormal voltage, current, and/or temperature information (for example, the voltage of the node 302 is too high);

In step S24, the abnormality judging module 202 judges whether the node (301, 302, ..., 30n) is abnormal, if so, the process goes to step S25, if not, the process goes to step S21;

In step S25, the control module 204 controls the switch (such as switch 402) connected to the abnormal node (such as node 302) to be turned off, so that the power supply corresponding to the abnormal node should be disconnected, and the abnormal node Protect.

In a word, those of ordinary skill in the art should recognize that the above embodiments are only used to illustrate the present invention, rather than to limit the present invention, as long as within the spirit of the present invention, the above examples Appropriate changes and changes all fall within the scope of protection of the present invention.

Claims (10)

1. one kind is applied to the circuit breaking protective system of multi-node system, this multi-node system comprises some voltage feed units, one point of pressing plate and some nodes, voltage feed unit is used for providing to multi-node system provides working power, the working power of dividing pressing plate that voltage feed unit is provided is converted into various operating voltage, and export to node, this multi-node system also comprises the switch identical with number of nodes, each switch one end is connected with a point pressing plate, the other end connects respectively a node, it is characterized in that, this circuit breaking protective system runs on point pressing plate, this circuit breaking protective system comprises:

One monitoring modular, for continuing voltage, electric current and/or the temperature information of all nodes of detecting;

One abnormal judge module, for judging whether every voltage, electric current and/or temperature information on detection of occurs extremely; And

One control module, in the time that appearance is abnormal, control the switch disconnection that the node abnormal with this appearance is connected, thereby abnormal power supply corresponding to node of this appearance of this disconnection is protected to the node that this appearance is abnormal.

2. circuit breaking protective system as claimed in claim 1; it is characterized in that; this abnormal judge module judges whether each voltage, electric current and/or temperature information of detecting occurs that abnormal concrete grammar is: according to the normal range of pre-stored voltage, electric current and/or temperature information; judge whether each voltage, electric current and/or temperature information of detecting exceedes this normal range; if go beyond the scope, be considered as abnormal.

3. circuit breaking protective system as claimed in claim 1, is characterized in that, this circuit breaking protective system also comprises a sending module, in the time that appearance is abnormal, informs that abnormal and abnormal specifying information appears in all nodes.

4. circuit breaking protective system as claimed in claim 3; it is characterized in that; this monitoring modular is also for continuing voltage, electric current and/or the temperature information of all voltage feed units of detecting; described sending module, also in the time that appearance is abnormal, informs that abnormal and abnormal specifying information appears in all voltage feed units.

5. circuit breaking protective system as claimed in claim 3, is characterized in that, this abnormal specifying information comprises and occurs abnormal node or the position of voltage feed unit, and/or occurs abnormal voltage, electric current and/or temperature information.

6. one kind is applied to the power-off protection method of multi-node system, this multi-node system comprises some voltage feed units, one point of pressing plate and some nodes, voltage feed unit is used for providing to multi-node system provides working power, the working power of dividing pressing plate that voltage feed unit is provided is converted into various operating voltage, and export to node, this multi-node system also comprises the switch identical with number of nodes, one end of each switch is connected with a point pressing plate, the other end connects respectively a node, it is characterized in that, this power-off protection method runs on this point of pressing plate, the method following steps:

Continue voltage, electric current and/or the temperature information of all nodes of detecting;

Judge whether each voltage, electric current and/or temperature information of detecting occurs extremely;

In the time that appearance is abnormal, control the switch disconnection that the node abnormal with this appearance is connected, thereby abnormal power supply corresponding to node of this appearance of this disconnection protected to the node that this appearance is abnormal.

7. power-off protection method as claimed in claim 6; it is characterized in that; this judges whether each voltage, electric current and/or temperature information of detecting occurs that abnormal step is specially: according to the normal range of pre-stored voltage, electric current and/or temperature information; judge whether each voltage, electric current and/or temperature information of detecting exceedes this normal range; if go beyond the scope, be considered as abnormal.

8. power-off protection method as claimed in claim 6, is characterized in that, the method also comprises step: in the time that appearance is abnormal, inform that abnormal and abnormal specifying information appears in all nodes.

9. power-off protection method as claimed in claim 8; it is characterized in that; the method also comprises step: continue voltage, electric current and/or the temperature information of all voltage feed units of detecting, and in the time that appearance is abnormal, inform that abnormal and abnormal specifying information appears in all voltage feed units.

10. power-off protection method as claimed in claim 8, is characterized in that, the method also comprises step: determine whether that node occurs abnormal.

Images