CN113835513A - Power failure information transmission method, main control board, sub-card, equipment and storage medium - Google Patents

Power failure information transmission method, main control board, sub-card, equipment and storage medium Download PDF

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Publication number
CN113835513A
CN113835513A CN202111089381.1A CN202111089381A CN113835513A CN 113835513 A CN113835513 A CN 113835513A CN 202111089381 A CN202111089381 A CN 202111089381A CN 113835513 A CN113835513 A CN 113835513A
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control board
daughter card
module
main control
power
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CN113835513B (en
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石成金
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New H3C Security Technologies Co Ltd
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New H3C Security Technologies Co Ltd
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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
    • G06F1/30—Means for acting in the event of power-supply failure or interruption, e.g. power-supply fluctuations
    • 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
    • G06F1/266—Arrangements to supply power to external peripherals either directly from the computer or under computer control, e.g. supply of power through the communication port, computer controlled power-strips
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Power Engineering (AREA)
  • Power Sources (AREA)

Abstract

The invention provides a power failure information transmission method, a main control board, a sub-card, equipment and a storage medium, wherein the method comprises the following steps: acquiring a power supply voltage of a back plate, and adjusting the power supply voltage to a working voltage; after detecting that the power supply voltage is reduced to a first threshold value, closing a working module of the main control board; starting a first energy storage circuit to supply power to a preset module; generating a Dying Gasp message according to a preset template; sending the DyingGasp message to the daughter card so that the daughter card can forward the DyingGasp message and close a working module of the daughter card after detecting that the power supply voltage is reduced to a second threshold value; the second threshold is less than the first threshold. Therefore, a power failure monitoring circuit and a load power supply management circuit on the daughter card can be saved, the Dying Gasp module software and logic development work of the daughter card can be saved, the requirement on the daughter card is reduced, the daughter card does not need to be additionally upgraded, and the cost is greatly reduced.

Description

Power failure information transmission method, main control board, sub-card, equipment and storage medium
Technical Field
The invention relates to the technical field of power failure transmission, in particular to a power failure information transmission method, a main control board, a sub-card, equipment and a storage medium.
Background
When a CPE (Customer Premises Equipment) is powered off, the Equipment can report to a CO (Central Office) in time, and a capacitor with a large capacitance value is required to implement this function, so that sufficient electric quantity is available to maintain the system operation after the power failure, and the power failure information can be smoothly sent out. In the prior art, a Dying Gasp function is realized on a daughter card, that is, a sufficient energy storage capacitor, a power failure monitoring chip and a corresponding Dying Gasp module are designed on the daughter card.
However, for a distributed system with a very large variety of daughter cards, all the daughter cards need to be upgraded to high-speed cards supporting Dying Gasp functions, and the design change is required on each daughter card, which is very costly.
Disclosure of Invention
The problem solved by the invention is that the application cost of the existing power-down information transmission solution is too high.
In order to solve the above problems, the present invention first provides a power failure information transmission method, which is applied to a main control board, and comprises:
acquiring a power supply voltage of a back plate, and adjusting the power supply voltage to a working voltage;
after detecting that the power supply voltage is reduced to a first threshold value, closing a working module of the main control board;
starting a first energy storage circuit to supply power to a preset module;
generating a Dying Gasp message according to a preset template;
sending the Dying Gasp message to the daughter card so that the daughter card can forward the Dying Gasp message and close a working module of the daughter card after detecting that the power supply voltage is reduced to a second threshold value; the second threshold is less than the first threshold.
Preferably, the preset module comprises a logic module, a Dying Gasp module and a switching chip.
Secondly, a power failure information transmission method is provided, which is applied to a daughter card and comprises the following steps:
acquiring a power supply voltage of a back plate, and adjusting the power supply voltage to a working voltage;
forwarding after receiving a Dying Gasp message sent by a main control board; the Dying Gasp message is generated by turning off a working module of the main control board and starting a first energy storage circuit to supply power according to a preset template after the main control board detects that the power supply voltage is reduced to a first threshold value;
after detecting that the power supply voltage is reduced to a second threshold value, closing a working module of the daughter card; the second threshold is less than the first threshold.
Preferably, the method further comprises the following steps:
starting a second energy storage circuit to supply power to a preset module of the daughter card; the equivalent capacitance of the second tank circuit is smaller than that of the first tank circuit.
Again, a master control board is provided, comprising:
the first voltage conversion module is used for acquiring the power supply voltage of the back plate and adjusting the power supply voltage into working voltage;
the first slow starting circuit is used for closing the working module of the main control panel after detecting that the power supply voltage is reduced to a first threshold value;
the logic module circuit is used for enabling the first energy storage circuit to supply power to the preset module;
the system comprises a Dying Gasp module, a mapping module and a message processing module, wherein the Dying Gasp module is used for generating a Dying Gasp message according to a preset template;
the switching chip is used for sending the Dying Gasp message to the daughter card so that the daughter card can forward the Dying Gasp message and close a working module of the daughter card after detecting that the power supply voltage is reduced to a second threshold value; the second threshold is less than the first threshold.
From the second aspect, there is provided a daughter card comprising:
the second voltage conversion module is used for acquiring the power supply voltage of the back plate and adjusting the power supply voltage into working voltage;
the physical chip is used for forwarding after receiving the Dying Gasp message sent by the main control board; the Dying Gasp message is generated by turning off a working module of the main control board and starting a first energy storage circuit to supply power according to a preset template after the main control board detects that the power supply voltage is reduced to a first threshold value;
the second slow starting circuit is used for closing the working module of the daughter card after detecting that the power supply voltage is reduced to a second threshold value; the second threshold is less than the first threshold.
Preferably, the method further comprises the following steps: the second energy storage circuit is used for starting the second energy storage circuit to supply power to the preset module of the daughter card; the equivalent capacitance of the second tank circuit is smaller than that of the first tank circuit.
In another aspect, a network device is provided, which includes a backplane, a main control board as described above, and a daughter card as described above; the master control board and the daughter card are arranged on the backboard, and the backboard supplies power.
In another aspect, an electronic device is provided, which includes a computer-readable storage medium storing a computer program and a processor, where the computer program is read by the processor and executed to implement the power-down information transmission method or the power-down information transmission method.
Finally, a computer-readable storage medium is provided, in which a computer program is stored, and when the computer program is read and executed by a processor, the power-down information transmission method as described above is implemented, or the power-down information transmission method as described above is implemented.
Therefore, by realizing the Dying Gasp function on the main control board, in the power-down process of the whole machine, the main control board triggers the Dying Gasp message after power-down, and the message is forwarded to each daughter card through the switching chip, thereby realizing the sending of the Dying Gasp message. Therefore, a power failure monitoring circuit and a load power supply management circuit on the daughter card can be saved, the Dying Gasp module software and logic development work of the daughter card can be saved, the requirement on the daughter card is reduced, the daughter card does not need to be additionally upgraded, and the cost is greatly reduced.
Thus, for the distributed system with a plurality of sub cards, after the cost of a single sub card is reduced, the more the number of slots of the sub card of the whole machine is, the more the cost is reduced, and the cost of the distributed system is greatly reduced; and the daughter card directly transmits the Dying Gasp message as a common message without developing Dying Gasp characteristics, thereby greatly shortening the development period of products.
Therefore, a power failure detection module, a Dying Gasp module and the like do not need to be installed on the daughter card, and only a physical chip and a simple control module need to be installed, so that the cost can be greatly saved. The power supply voltage is reduced to a first threshold value, then the main control board is powered off, and then the sub-card is powered off after the power supply voltage is reduced to a second threshold value, so that the main control board is powered off firstly, and the sub-card is powered off secondly; in addition, the power of the main control board is high, the power of the daughter cards is low, and therefore even if the power failure time is the same, the main control board can preferentially consume the electric energy of the energy storage circuit, and therefore the main control board is powered down firstly.
Therefore, the second energy storage circuit is arranged on the daughter card, so that the duration time of the daughter card forwarding function can be maintained after the power failure of the daughter card, the available time for forwarding the Dying Gasp message can be further prolonged, and the normal realization of the Dying Gasp function is further ensured.
Drawings
FIG. 1 is a schematic diagram of a prior art apparatus;
fig. 2 is a flowchart of a power down information transmission method according to an embodiment of the present invention;
fig. 3 is a flowchart of a power failure information transmission method of a main control board according to an embodiment of the present invention;
fig. 4 is a first flowchart of a method of transmitting power down information of a daughter card according to an embodiment of the present invention;
fig. 5 is a second flowchart of a method of transmitting power down information of a daughter card according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a main control board according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a daughter card according to an embodiment of the present invention;
FIG. 8 is a block diagram of a network device according to an embodiment of the present invention;
fig. 9 is a block diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
When a CPE (Customer Premises Equipment) is powered down, the Equipment can report to a CO (Central Office) in time, and this function is called "Dying Gasp (terminal heritage)".
The Dying Gasp function requires that when the single board is powered down, a certain number of messages with fixed formats are sent out to inform equipment of the failure. The function needs a capacitor with enough capacity to store energy, the power failure monitoring chip is used for monitoring power failure and triggering interruption, the single board load power supply management is carried out after the power failure, and a certain number of fixed format Dying Gasp messages can be sent out according to requirements after the system is interrupted.
In the prior art, a Dying Gasp function is realized on a daughter card, that is, a sufficient energy storage capacitor, a power failure monitoring chip and a corresponding Dying Gasp module are designed on the daughter card.
However, for the distributed system, the sub-cards are very various, and if the Dying Gasp function is implemented on each sub-card, the related hardware circuit and the associated software modification are required on each sub-card, which is very costly in design; and the Dying Gasp module can be realized only by a specific chip, and for some low-speed daughter cards, the module cannot be realized, so that the low-speed daughter cards cannot support the Dying Gasp function, and the use scene of the daughter cards is limited.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
The embodiment of the application provides a power failure information transmission method. As shown in fig. 1, the hardware involved in the method of the present invention includes: the system comprises a main control board, a daughter card and a back board; the master control board and the daughter card are arranged on the backboard, and the backboard supplies power. As shown in fig. 2, the specific scheme flow of the embodiment of the present application is as follows:
s10, the backboard supplies power to the main control board and the daughter card; the master control board and the daughter cards acquire power supply voltage of the backplane and adjust the power supply voltage to working voltage;
the master control board and the daughter cards are arranged on the backboard, and the backboard supplies power.
Preferably, the supply voltage of the back plate is 48V.
The working voltage of the main control board and the daughter card is lower than the power supply voltage of the backboard, so that the main control board and the daughter card are both provided with power supply conversion modules for converting the power supply voltage into the working voltage.
Preferably, the operating voltage of the master control board/daughter card is 12V.
S20, the main control board closes the working module of the main control board after detecting that the power supply voltage is reduced to a first threshold value;
the main control board is provided with a slow starting circuit, the slow starting circuit is provided with a first threshold, when the input voltage is smaller than the first threshold, the slow starting circuit is powered off, and PG signals of the slow starting circuit can be changed after the power is off, so that the purposes of notification and detection are achieved. The slow start circuit is powered down, that is, it means that the main control board detects that the power supply voltage is reduced to the first threshold value.
When the PG signal is in standby, the PG circuit outputs a zero-level self-detection signal to the host, and the host stops working and is in a standby state; after the controlled start, the PG circuit delays for hundreds of milliseconds to jump from zero level to +5V after the output voltage of the switching power supply is stable, and sends a high-level signal to the host computer to inform the host computer that the trigger system is automatically closed before the power supply is powered off.
The back board can also send a voltage enabling signal to the main control board, the purpose of notifying the main control board is achieved through the enabling signal, and the main control board receives different enabling signals, namely, the main control board detects that the power supply voltage is reduced to a first threshold value (the back board is set to send an effective enabling signal when the power supply voltage is greater than the first threshold value, and send an invalid enabling signal when the power supply voltage is less than or equal to the first threshold value).
The enabling signal is a control signal, and when the enabling signal is invalid, the corresponding equipment is in a standby state; when the enable signal is valid, the corresponding device will operate.
When detecting or receiving a change of a PG signal of the slow starting circuit, the logic module controls the main control board to close a working module of the logic module, wherein the working module can be a module which comprises a CPU and is irrelevant to generation and sending of a Dying Gasp message; for example, all modules except the logic module, the Dying Gasp module and the switch chip.
S30, starting the first energy storage circuit to supply power to the preset module;
the first energy storage circuit is charged when the main control board works normally, and the preset module is charged after the main control board is powered off.
Preferably, the preset module comprises: a logic module, a Dying Gasp module and a switching chip.
S40, generating a Dying Gasp message according to a preset template;
the slow start circuit may transmit the abnormal information (change PG signal) after the power supply voltage is reduced to the first threshold value to the logic module and the Dying Gasp module; the logic module controls the working module of the main control board to power off, and the Dying Gasp module generates a Dying Gasp message according to a preset template.
S50, sending the Dying Gasp message to the daughter card;
and the generated Dying Gasp message is sent to a physical chip of the daughter card through the switching chip.
S60, the daughter card receives the Dying Gasp message and then forwards the Dying Gasp message;
and the physical chip of the daughter card forwards the received message, and the received Dying Gasp message is also forwarded.
It should be noted that, if there are multiple daughter cards, the Dying Gasp message may select a specific daughter card to forward, and all the daughter cards are not required to forward.
S70, the daughter card closes the working module of the daughter card after detecting that the power supply voltage is reduced to a second threshold value; the second threshold is less than the first threshold.
Preferably, the first threshold is 36V and the second threshold is 34V.
In addition, for the driving Gasp function, the driving Gasp message sent by the driving Gasp function is a signal with a certain time length, so that the power-off time of the daughter card serving as a forwarding message (the power-off time refers to the time when all circuits and elements inside the device are powered off and stop working) needs to have a certain time interval with the power-off time of the main control board to complete the forwarding of the driving Gasp message.
It should be noted that, the energy storage circuit is arranged in the main control board, and the driving Gasp can continue to work normally for a period of time after power failure, so that it is actually required to ensure that the power failure time of the main control board and the power failure time of the daughter card have a certain interval, thereby completing the generation and forwarding of the driving Gasp message.
In this way, the second threshold is set to be smaller than the first threshold, so that in the process of voltage reduction, the power failure of the main control board is triggered first, and then the power failure of the daughter card is triggered, so that the power failure of the daughter card can be achieved after the generation and forwarding of the Dying Gasp message can be continuously completed after the power failure of the main control board, and the normal realization of the Dying Gasp function is ensured.
Therefore, by realizing the Dying Gasp function on the main control board, in the power-down process of the whole machine, the main control board triggers the Dying Gasp message after power-down, and the message is forwarded to each daughter card through the switching chip, thereby realizing the sending of the Dying Gasp message. Therefore, a power failure monitoring circuit and a load power supply management circuit on the daughter card can be saved, the Dying Gasp module software and logic development work of the daughter card can be saved, the requirement on the daughter card is reduced, the daughter card does not need to be additionally upgraded, and the cost is greatly reduced.
Thus, for the distributed system with a plurality of sub cards, after the cost of a single sub card is reduced, the more the number of slots of the sub card of the whole machine is, the more the cost is reduced, and the cost of the distributed system is greatly reduced; and the daughter card directly transmits the Dying Gasp message as a common message without developing Dying Gasp characteristics, thereby greatly shortening the development period of products.
Therefore, a power failure detection module, a Dying Gasp module and the like do not need to be installed on the daughter card, and only a physical chip and a simple control module need to be installed, so that the cost can be greatly saved. The power supply voltage is reduced to a first threshold value, then the main control board is powered off, and then the sub-card is powered off after the power supply voltage is reduced to a second threshold value, so that the main control board is powered off firstly, and the sub-card is powered off secondly; in addition, the power of the main control board is high, the power of the daughter cards is low, and therefore even if the power failure time is the same, the main control board can preferentially consume the electric energy of the energy storage circuit, and therefore the main control board is powered down firstly.
In addition, after the main control board is powered off, the energy storage circuit closes useless power supply on the single board and reserves power supply to the Dying Gasp module, the logic device and the exchange chip, so that the power consumption of the main control board can be reduced, and the electric energy standard required to be stored by the energy storage circuit is reduced.
Preferably, as shown in fig. 2, the power failure information transmission method further includes:
s80, the daughter card starts the second energy storage circuit to supply power to the preset module of the daughter card; the equivalent capacitance of the second tank circuit is smaller than that of the first tank circuit.
The preset module of the daughter card is the physical chip, and the physical chip is used for forwarding the Dying Gasp message; and the method can also be used for forwarding other messages sent by the main control board.
Therefore, the second energy storage circuit is arranged on the daughter card, so that the duration time of the daughter card forwarding function can be maintained after the power failure of the daughter card, the available time for forwarding the Dying Gasp message can be further prolonged, and the normal realization of the Dying Gasp function is further ensured.
It should be noted that the equivalent capacitance in this application is used to balance the relationship between the capacities of the first tank circuit and the second tank circuit, and the larger the capacity is, the higher the cost is generally.
The equivalent capacitance of the second energy storage circuit is smaller than that of the first energy storage circuit, so that a large-capacity energy storage circuit does not need to be arranged on the daughter card, and the cost of the single daughter card is reduced by ensuring the normal realization of the Dying Gasp function.
The CPU of the control panel is connected with the logic device and the physical chip of the daughter card through a management bus; the exchange chip of the control board is connected with the control device and the physical chip of the daughter card through a data bus.
The embodiment of the application provides a power failure information transmission method, which is applied to a main control board and can be executed by the main control board. Fig. 3 is a flowchart of a power failure information transmission method of a main control board according to an embodiment of the present invention; the power failure information transmission method is applied to a main control board and comprises the following steps:
s1, obtaining the power supply voltage of the backboard and adjusting the power supply voltage to a working voltage;
s2, after detecting that the power supply voltage is reduced to a first threshold value, closing the working module of the main control board;
s3, starting the first energy storage circuit to supply power to the preset module;
s4, generating a Dying Gasp message according to a preset template;
s5, sending the Dying Gasp message to the daughter card so that the daughter card can forward the Dying Gasp message and close a working module of the daughter card after detecting that the power supply voltage is reduced to a second threshold value; the second threshold is less than the first threshold.
In this way, the second threshold is set to be smaller than the first threshold, so that in the process of voltage reduction, the power failure of the main control board is triggered first, and then the power failure of the daughter card is triggered, so that the power failure of the daughter card can be achieved after the generation and forwarding of the Dying Gasp message can be continuously completed after the power failure of the main control board, and the normal realization of the Dying Gasp function is ensured.
Therefore, by realizing the Dying Gasp function on the main control board, in the power-down process of the whole machine, the main control board triggers the Dying Gasp message after power-down, and the message is forwarded to each daughter card through the switching chip, thereby realizing the sending of the Dying Gasp message. Therefore, a power failure monitoring circuit and a load power supply management circuit on the daughter card can be saved, the Dying Gasp module software and logic development work of the daughter card can be saved, the requirement on the daughter card is reduced, the daughter card does not need to be additionally upgraded, and the cost is greatly reduced.
Thus, for the distributed system with a plurality of sub cards, after the cost of a single sub card is reduced, the more the number of slots of the sub card of the whole machine is, the more the cost is reduced, and the cost of the distributed system is greatly reduced; and the daughter card directly transmits the Dying Gasp message as a common message without developing Dying Gasp characteristics, thereby greatly shortening the development period of products.
Therefore, a power failure detection module, a Dying Gasp module and the like do not need to be installed on the daughter card, and only a physical chip and a simple control module need to be installed, so that the cost can be greatly saved. The power supply voltage is reduced to a first threshold value, then the main control board is powered off, and then the sub-card is powered off after the power supply voltage is reduced to a second threshold value, so that the main control board is powered off firstly, and the sub-card is powered off secondly; in addition, the power of the main control board is high, the power of the daughter cards is low, and therefore even if the power failure time is the same, the main control board can preferentially consume the electric energy of the energy storage circuit, and therefore the main control board is powered down firstly.
Preferably, the preset module comprises: a logic module, a Dying Gasp module and a switching chip.
The slow start circuit may transmit the abnormal information (change PG signal) after the power supply voltage is reduced to the first threshold value to the logic module and the Dying Gasp module; the logic module controls the power-off of the working module of the main control board, the Dying Gasp module generates a Dying Gasp message according to a preset template, and the generated Dying Gasp message is sent to the physical chip of the daughter card through the exchange chip.
The embodiment of the application provides a power failure information transmission method, which is applied to a daughter card and can be executed by the daughter card. Fig. 4 is a first flowchart of a power down information transmission method of a daughter card according to an embodiment of the present invention; the power failure information transmission method is applied to a daughter card and comprises the following steps:
s100, acquiring a power supply voltage of a backboard, and adjusting the power supply voltage to a working voltage;
s200, forwarding after receiving a Dying Gasp message sent by the main control board; the Dying Gasp message is generated by turning off a working module of the main control board and starting a first energy storage circuit to supply power according to a preset template after the main control board detects that the power supply voltage is reduced to a first threshold value;
s300, after detecting that the power supply voltage is reduced to a second threshold value, closing a working module of the daughter card; the second threshold is less than the first threshold.
In this way, the second threshold is set to be smaller than the first threshold, so that in the process of voltage reduction, the power failure of the main control board is triggered first, and then the power failure of the daughter card is triggered, so that the power failure of the daughter card can be achieved after the generation and forwarding of the Dying Gasp message can be continuously completed after the power failure of the main control board, and the normal realization of the Dying Gasp function is ensured.
Therefore, by realizing the Dying Gasp function on the main control board, in the power-down process of the whole machine, the main control board triggers the Dying Gasp message after power-down, and the message is forwarded to each daughter card through the switching chip, thereby realizing the sending of the Dying Gasp message. Therefore, a power failure monitoring circuit and a load power supply management circuit on the daughter card can be saved, the Dying Gasp module software and logic development work of the daughter card can be saved, the requirement on the daughter card is reduced, the daughter card does not need to be additionally upgraded, and the cost is greatly reduced.
Thus, for the distributed system with a plurality of sub cards, after the cost of a single sub card is reduced, the more the number of slots of the sub card of the whole machine is, the more the cost is reduced, and the cost of the distributed system is greatly reduced; and the daughter card directly transmits the Dying Gasp message as a common message without developing Dying Gasp characteristics, thereby greatly shortening the development period of products.
Therefore, a power failure detection module, a Dying Gasp module and the like do not need to be installed on the daughter card, and only a physical chip and a simple control module need to be installed, so that the cost can be greatly saved. The power supply voltage is reduced to a first threshold value, then the main control board is powered off, and then the sub-card is powered off after the power supply voltage is reduced to a second threshold value, so that the main control board is powered off firstly, and the sub-card is powered off secondly; in addition, the power of the main control board is high, the power of the daughter cards is low, and therefore even if the power failure time is the same, the main control board can preferentially consume the electric energy of the energy storage circuit, and therefore the main control board is powered down firstly.
Preferably, as shown in fig. 5, the power failure information transmission method further includes:
s400, starting a second energy storage circuit to supply power to a preset module of the daughter card; the equivalent capacitance of the second tank circuit is smaller than that of the first tank circuit.
Therefore, the second energy storage circuit is arranged on the daughter card, so that the duration time of the daughter card forwarding function can be maintained after the power failure of the daughter card, the available time for forwarding the Dying Gasp message can be further prolonged, and the normal realization of the Dying Gasp function is further ensured.
The equivalent capacitance of the second energy storage circuit is smaller than that of the first energy storage circuit, so that a large-capacity energy storage circuit does not need to be arranged on the daughter card, and the cost of the single daughter card is reduced by ensuring the normal realization of the Dying Gasp function.
The embodiment of the present invention provides a main control board, which is used for executing the power failure information transmission method described in the above content of the present invention, and the main control board is described in detail below.
As shown in fig. 6, the main control board includes:
the first voltage conversion module 101 is configured to obtain a power supply voltage of the backplane and adjust the power supply voltage to a working voltage;
the first slow starting circuit 102 is configured to close the working module of the main control board after detecting that the power supply voltage is reduced to a first threshold;
a logic module circuit 103, configured to enable the first energy storage circuit to supply power to the preset module;
a Dying Gasp module 104, configured to generate a Dying Gasp packet according to a preset template;
the switching chip 105 is configured to send the Dying Gasp message to the daughter card, so that the daughter card forwards the Dying Gasp message and closes a working module of the daughter card after detecting that the power supply voltage is reduced to a second threshold; the second threshold is less than the first threshold.
Therefore, by realizing the Dying Gasp function on the main control board, in the power-down process of the whole machine, the main control board triggers the Dying Gasp message after power-down, and the message is forwarded to each daughter card through the switching chip, thereby realizing the sending of the Dying Gasp message. Therefore, a power failure monitoring circuit and a load power supply management circuit on the daughter card can be saved, the Dying Gasp module software and logic development work of the daughter card can be saved, the requirement on the daughter card is reduced, the daughter card does not need to be additionally upgraded, and the cost is greatly reduced.
Thus, for the distributed system with a plurality of sub cards, after the cost of a single sub card is reduced, the more the number of slots of the sub card of the whole machine is, the more the cost is reduced, and the cost of the distributed system is greatly reduced; and the daughter card directly transmits the Dying Gasp message as a common message without developing Dying Gasp characteristics, thereby greatly shortening the development period of products.
Therefore, a power failure detection module, a Dying Gasp module and the like do not need to be installed on the daughter card, and only a physical chip and a simple control module need to be installed, so that the cost can be greatly saved. The power supply voltage is reduced to a first threshold value, then the main control board is powered off, and then the sub-card is powered off after the power supply voltage is reduced to a second threshold value, so that the main control board is powered off firstly, and the sub-card is powered off secondly; in addition, the power of the main control board is high, the power of the daughter cards is low, and therefore even if the power failure time is the same, the main control board can preferentially consume the electric energy of the energy storage circuit, and therefore the main control board is powered down firstly.
The embodiment of the present application provides a daughter card, which is used for executing the power failure information transmission method described in the foregoing of the present invention, and the daughter card is described in detail below.
As shown in fig. 7, the daughter card includes:
the second voltage conversion module 201 is configured to obtain a power supply voltage of the backplane, and adjust the power supply voltage to a working voltage;
the physical chip 202 is configured to forward a Dying Gasp message sent by the main control board after receiving the Dying Gasp message; the Dying Gasp message is generated by turning off a working module of the main control board and starting a first energy storage circuit to supply power according to a preset template after the main control board detects that the power supply voltage is reduced to a first threshold value;
the second slow starting circuit 203 is used for closing the working module of the daughter card after detecting that the power supply voltage is reduced to a second threshold value; the second threshold is less than the first threshold.
Therefore, by realizing the Dying Gasp function on the main control board, in the power-down process of the whole machine, the main control board triggers the Dying Gasp message after power-down, and the message is forwarded to each daughter card through the switching chip, thereby realizing the sending of the Dying Gasp message. Therefore, a power failure monitoring circuit and a load power supply management circuit on the daughter card can be saved, the Dying Gasp module software and logic development work of the daughter card can be saved, the requirement on the daughter card is reduced, the daughter card does not need to be additionally upgraded, and the cost is greatly reduced.
Thus, for the distributed system with a plurality of sub cards, after the cost of a single sub card is reduced, the more the number of slots of the sub card of the whole machine is, the more the cost is reduced, and the cost of the distributed system is greatly reduced; and the daughter card directly transmits the Dying Gasp message as a common message without developing Dying Gasp characteristics, thereby greatly shortening the development period of products.
Therefore, a power failure detection module, a Dying Gasp module and the like do not need to be installed on the daughter card, and only a physical chip and a simple control module need to be installed, so that the cost can be greatly saved. The power supply voltage is reduced to a first threshold value, then the main control board is powered off, and then the sub-card is powered off after the power supply voltage is reduced to a second threshold value, so that the main control board is powered off firstly, and the sub-card is powered off secondly; in addition, the power of the main control board is high, the power of the daughter cards is low, and therefore even if the power failure time is the same, the main control board can preferentially consume the electric energy of the energy storage circuit, and therefore the main control board is powered down firstly.
Preferably, the daughter card further includes:
the second energy storage circuit 204 is used for starting the second energy storage circuit to supply power to a preset module of the daughter card; the equivalent capacitance of the second tank circuit is smaller than that of the first tank circuit.
Wherein the preset module is the physical chip.
Therefore, the second energy storage circuit is arranged on the daughter card, so that the duration time of the daughter card forwarding function can be maintained after the power failure of the daughter card, the available time for forwarding the Dying Gasp message can be further prolonged, and the normal realization of the Dying Gasp function is further ensured.
The equivalent capacitance of the second energy storage circuit is smaller than that of the first energy storage circuit, so that a large-capacity energy storage circuit does not need to be arranged on the daughter card, and the cost of the single daughter card is reduced by ensuring the normal realization of the Dying Gasp function.
The embodiments of the present application provide a network device, and the subcard is described in detail below.
As shown in fig. 8, the network device includes: the system comprises a backboard, a main control board as described in the foregoing and a daughter card as described in the foregoing; the master control board and the daughter card are arranged on the backboard, and the backboard supplies power.
Therefore, by realizing the Dying Gasp function on the main control board, in the power-down process of the whole machine, the main control board triggers the Dying Gasp message after power-down, and the message is forwarded to each daughter card through the switching chip, thereby realizing the sending of the Dying Gasp message. Therefore, a power failure monitoring circuit and a load power supply management circuit on the daughter card can be saved, the Dying Gasp module software and logic development work of the daughter card can be saved, the requirement on the daughter card is reduced, the daughter card does not need to be additionally upgraded, and the cost is greatly reduced.
Thus, for the distributed system with a plurality of sub cards, after the cost of a single sub card is reduced, the more the number of slots of the sub card of the whole machine is, the more the cost is reduced, and the cost of the distributed system is greatly reduced; and the daughter card directly transmits the Dying Gasp message as a common message without developing Dying Gasp characteristics, thereby greatly shortening the development period of products.
Therefore, a power failure detection module, a Dying Gasp module and the like do not need to be installed on the daughter card, and only a physical chip and a simple control module need to be installed, so that the cost can be greatly saved. The power supply voltage is reduced to a first threshold value, then the main control board is powered off, and then the sub-card is powered off after the power supply voltage is reduced to a second threshold value, so that the main control board is powered off firstly, and the sub-card is powered off secondly; in addition, the power of the main control board is high, the power of the daughter cards is low, and therefore even if the power failure time is the same, the main control board can preferentially consume the electric energy of the energy storage circuit, and therefore the main control board is powered down firstly.
An electronic device is provided in an embodiment of the present application, as shown in fig. 9, and includes a computer-readable storage medium 301 and a processor 302, where the computer program is stored, and when the computer program is read and executed by the processor, the method for transmitting power-down information applied to a main control board as described above is implemented, or the method for transmitting power-down information applied to a daughter card as described above is implemented.
Therefore, by realizing the Dying Gasp function on the main control board, in the power-down process of the whole machine, the main control board triggers the Dying Gasp message after power-down, and the message is forwarded to each daughter card through the switching chip, thereby realizing the sending of the Dying Gasp message. Therefore, a power failure monitoring circuit and a load power supply management circuit on the daughter card can be saved, the Dying Gasp module software and logic development work of the daughter card can be saved, the requirement on the daughter card is reduced, the daughter card does not need to be additionally upgraded, and the cost is greatly reduced.
Thus, for the distributed system with a plurality of sub cards, after the cost of a single sub card is reduced, the more the number of slots of the sub card of the whole machine is, the more the cost is reduced, and the cost of the distributed system is greatly reduced; and the daughter card directly transmits the Dying Gasp message as a common message without developing Dying Gasp characteristics, thereby greatly shortening the development period of products.
Therefore, a power failure detection module, a Dying Gasp module and the like do not need to be installed on the daughter card, and only a physical chip and a simple control module need to be installed, so that the cost can be greatly saved. The power supply voltage is reduced to a first threshold value, then the main control board is powered off, and then the sub-card is powered off after the power supply voltage is reduced to a second threshold value, so that the main control board is powered off firstly, and the sub-card is powered off secondly; in addition, the power of the main control board is high, the power of the daughter cards is low, and therefore even if the power failure time is the same, the main control board can preferentially consume the electric energy of the energy storage circuit, and therefore the main control board is powered down firstly.
An embodiment of the present application provides a computer-readable storage medium, where a computer program is stored, and when the computer program is read and executed by a processor, the method for transmitting power-down information applied to a main control board as described above is implemented, or the method for transmitting power-down information applied to a daughter card as described above is implemented.
The technical solution of the embodiment of the present invention essentially or partially contributes to the prior art, or all or part of the technical solution may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be an air conditioner, a refrigeration device, a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the method of the embodiment of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
Therefore, by realizing the Dying Gasp function on the main control board, in the power-down process of the whole machine, the main control board triggers the Dying Gasp message after power-down, and the message is forwarded to each daughter card through the switching chip, thereby realizing the sending of the Dying Gasp message. Therefore, a power failure monitoring circuit and a load power supply management circuit on the daughter card can be saved, the Dying Gasp module software and logic development work of the daughter card can be saved, the requirement on the daughter card is reduced, the daughter card does not need to be additionally upgraded, and the cost is greatly reduced.
Thus, for the distributed system with a plurality of sub cards, after the cost of a single sub card is reduced, the more the number of slots of the sub card of the whole machine is, the more the cost is reduced, and the cost of the distributed system is greatly reduced; and the daughter card directly transmits the Dying Gasp message as a common message without developing Dying Gasp characteristics, thereby greatly shortening the development period of products.
Therefore, a power failure detection module, a Dying Gasp module and the like do not need to be installed on the daughter card, and only a physical chip and a simple control module need to be installed, so that the cost can be greatly saved. The power supply voltage is reduced to a first threshold value, then the main control board is powered off, and then the sub-card is powered off after the power supply voltage is reduced to a second threshold value, so that the main control board is powered off firstly, and the sub-card is powered off secondly; in addition, the power of the main control board is high, the power of the daughter cards is low, and therefore even if the power failure time is the same, the main control board can preferentially consume the electric energy of the energy storage circuit, and therefore the main control board is powered down firstly.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
All the embodiments in the application are described in a relevant manner, and the same and similar parts among the embodiments can be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, as for the embodiments of the method for transmitting power-down information, the main control board, the daughter card, the network device, the electronic device, and the machine-readable storage medium, since the embodiments are substantially similar to the embodiment of the power-down information transmission method described at the front end, the description is relatively simple, and relevant points can be referred to the partial description of the embodiment of the power-down information transmission method described at the front end.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (10)

1. A power failure information transmission method is applied to a main control board and is characterized by comprising the following steps:
acquiring a power supply voltage of a back plate, and adjusting the power supply voltage to a working voltage;
after the power supply voltage is detected to be reduced to a first threshold value, a working module of the main control board is closed;
starting a first energy storage circuit to supply power to a preset module of the main control board;
generating a Dying Gasp message according to a preset template;
sending the Dying Gasp message to a daughter card so that the daughter card can forward the Dying Gasp message and close a working module of the daughter card after detecting that the power supply voltage is reduced to a second threshold value; the second threshold is less than the first threshold.
2. The power-down information transmission method according to claim 1, wherein the preset module comprises a logic module, a Dying Gasp module and a switch chip.
3. A power failure information transmission method is applied to a daughter card and is characterized by comprising the following steps:
acquiring a power supply voltage of a back plate, and adjusting the power supply voltage to a working voltage;
forwarding after receiving a Dying Gasp message sent by a main control board; the Dying Gasp message is generated by the main control board by turning off a working module of the main control board and starting a first energy storage circuit to supply power according to a preset template after the main control board detects that the power supply voltage is reduced to a first threshold value;
after detecting that the power supply voltage is reduced to a second threshold value, closing a working module of the daughter card; the second threshold is less than the first threshold.
4. The power-down information transmission method according to claim 3, further comprising:
starting a second energy storage circuit to supply power to a preset module of the daughter card; the equivalent capacitance of the second tank circuit is smaller than that of the first tank circuit.
5. A master control board, comprising:
the first voltage conversion module is used for acquiring the power supply voltage of the back plate and adjusting the power supply voltage into working voltage;
the first slow starting circuit is used for closing the working module of the main control board after detecting that the power supply voltage is reduced to a first threshold value;
the logic module circuit is used for enabling the first energy storage circuit to supply power to a preset module of the main control board;
the system comprises a Dying Gasp module, a mapping module and a message processing module, wherein the Dying Gasp module is used for generating a Dying Gasp message according to a preset template;
the switching chip is used for sending the Dying Gasp message to a daughter card so that the daughter card can forward the Dying Gasp message and close a working module of the daughter card after detecting that the power supply voltage is reduced to a second threshold value; the second threshold is less than the first threshold.
6. A daughter card, comprising:
the second voltage conversion module is used for acquiring the power supply voltage of the back plate and adjusting the power supply voltage into working voltage;
the physical chip is used for forwarding after receiving the Dying Gasp message sent by the main control board; the Dying Gasp message is generated by turning off a working module of the main control board and starting a first energy storage circuit to supply power according to a preset template after the main control board detects that the power supply voltage is reduced to a first threshold value;
the second slow starting circuit is used for closing the working module of the daughter card after detecting that the power supply voltage is reduced to a second threshold value; the second threshold is less than the first threshold.
7. The daughter card of claim 6, further comprising:
the second energy storage circuit is used for starting the second energy storage circuit to supply power to the preset module of the daughter card; the equivalent capacitance of the second tank circuit is smaller than that of the first tank circuit.
8. A network device comprising a backplane, a master control board according to claim 5 and a daughter card according to claim 6 or 7; the master control board and the daughter card are arranged on the backboard, and the backboard supplies power.
9. An electronic device, comprising a computer-readable storage medium storing a computer program and a processor, wherein the computer program is read by the processor and executed to implement the power-down information transmission method according to claim 1 or 2, or to implement the power-down information transmission method according to claim 3 or 4.
10. A computer-readable storage medium, characterized in that it stores a computer program which, when read and executed by a processor, implements the power-down information transmission method according to claim 1 or 2, or implements the power-down information transmission method according to claim 3 or 4.
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