CN107807630B

CN107807630B - Switching control method of main and standby equipment, switching control system and device thereof

Info

Publication number: CN107807630B
Application number: CN201711230020.8A
Authority: CN
Inventors: 易圣; 张宁; 夏忠勇; 肖兆锋
Original assignee: Raisecom Technology Co Ltd
Current assignee: Raisecom Technology Co Ltd
Priority date: 2017-11-29
Filing date: 2017-11-29
Publication date: 2020-06-16
Anticipated expiration: 2037-11-29
Also published as: CN107807630A

Abstract

The invention discloses a switching control method of a main device and a spare device, and a switching control system and a device thereof, wherein the main device controls the standby device to be powered on or powered off by setting the switching control method of the main device and the spare device, so that the main device is used for controlling the standby device to be thoroughly reset; in addition, the main-standby relationship between the two devices can be determined in real time through the real-time main-standby arbitration result between the main device and the standby device, and then the control of the other device is realized through the respective main-standby states, so that the normal work of the local side device is ensured; in addition, when the standby device does not receive the control signal sent by the main device, the standby device can be automatically upgraded to the main device through the preset auxiliary power supply unit and the pull-down unit to complete the work, so that the problem that the local-side device cannot work normally due to the fault of the main device is avoided, and the smoothness of a communication network is effectively ensured.

Description

Switching control method of main and standby equipment, switching control system and device thereof

Technical Field

The present invention relates to the field of active/standby switching technologies, and in particular, to a switching control method for an active/standby device, and a switching control system and device thereof.

Background

The office device for transmission occupies a crucial role in the whole communication network, not only needs to collect the remote services hung down, but also needs to manage the remote devices, and if the office device is damaged, the normal operation of the communication network is greatly affected. Therefore, in order to avoid such a risk, the office device generally establishes a redundancy protection mechanism, taking redundancy protection of a main control panel as an example, a main control panel and a standby control panel are arranged in one office device, and when the main panel works abnormally, both management and service are switched to the standby control panel by using a main/standby arbitration mechanism, so as to improve reliability of the communication network.

Due to the redundancy protection design of the master control panel, the CPU crash or the function abnormality of the central processing unit, which often occurs in the existing communication network, cannot be completely avoided, so a hardware watchdog circuit is often arranged in the local side equipment to reset the key chip; however, because the reset mode is not thorough, the problem of CPU crash or abnormal function sometimes cannot be completely solved, and the office device may work normally only after the office device is powered on again and completely reset; therefore, operation and maintenance personnel are required to go to the site of the machine room and manually power off or plug and unplug the board card, so that the operation and maintenance cost is increased.

In the prior art, an automatic power-down restart device is generally arranged to automatically restart a main control panel with a dead halt or abnormal function of a Central Processing Unit (CPU), so as to ensure the normal work of local-side equipment; although the device can realize the automatic power-down restarting function, only single-disk control can be realized, the power-up or power-down of the disk can not be realized through the main disk control, namely the complete reset of the multiple disks can not be controlled through the main disk, so that the problem of complete reset of the local side equipment with a redundancy protection mechanism can not be effectively solved.

Disclosure of Invention

The embodiment of the invention provides a switching control method of main and standby equipment, a switching control system and a switching control device thereof, which are used for solving the problem that the local side equipment with a redundancy protection mechanism in the prior art cannot be completely reset.

The embodiment of the invention provides a switching control method of a main device and a standby device, which comprises the following steps:

receiving a switching signal which is sent by a network manager and used for controlling the standby equipment to be powered on or powered off;

determining whether the current equipment state is the main equipment or not according to the real-time main/standby arbitration result of the standby equipment;

and when the current equipment state of the equipment is determined to be the main equipment, sending a control signal carrying information for controlling the standby equipment to be powered on or powered off to the standby equipment according to the received switching signal.

In a possible implementation manner, in the above switching control method provided in an embodiment of the present invention, the determining whether a current device state of the device is an active device according to a real-time active-standby arbitration result with the standby device specifically includes:

determining whether the current in-place indication signal is a preset first potential signal or not according to the real-time main/standby arbitration result of the standby equipment;

when the current in-place indication signal is determined not to be the preset first potential signal, determining that the current equipment state is the standby equipment;

when the current on-site indication signal is determined to be a preset first potential signal, determining whether the current main/standby state signal is a preset second potential signal;

when the current main/standby state signal is determined not to be the preset second potential signal, determining that the current equipment state is the standby equipment;

when the current main/standby state signal is determined to be a preset second potential signal, determining whether the current working indication signal is the second potential signal;

when the current working indication signal is determined not to be the second potential signal, determining that the current equipment state is the standby equipment;

and when the current working indication signal is determined to be the second potential signal, determining that the current equipment state is the active equipment.

In a possible implementation manner, in the above switching control method provided in the embodiment of the present invention, a real-time active/standby arbitration mechanism with the standby device is: and performing real-time automatic negotiation processing according to a first state signal group which is sent to a main/standby arbitration unit in the standby equipment by the main/standby arbitration unit in the standby equipment and carries a current in-place indication signal, a main/standby state signal and a working indication signal, and a second state signal group which is sent to the main/standby arbitration unit in the standby equipment and carries the current in-place indication signal, the main/standby state signal and the working indication signal of the standby equipment by the main/standby arbitration unit in the standby equipment, and determining respective equipment states.

In a possible implementation manner, in the above switching control method provided in this embodiment of the present invention, before a main/standby arbitration unit in the main/standby arbitration unit sends a first state signal group carrying a current on-site indication signal, a main/standby state signal, and a working indication signal to a main/standby arbitration unit in the standby device, the main/standby arbitration unit in the main/standby arbitration unit performs logic and processing on the first indication signal used for indicating the working state of the CPU of the main/standby central processing unit and a second indication signal used for indicating the working state of each working chip of the main/standby arbitration unit, so as to generate the current working indication signal of the main/standby arbitration unit;

before a main/standby arbitration unit in the standby device sends a second state signal set carrying a current in-place indication signal, a main/standby state signal and a working indication signal of the standby device to a main/standby arbitration unit inside the standby device, the main/standby arbitration unit in the standby device performs logic and processing on a third indication signal used for indicating a working state of a CPU in the standby device and a fourth indication signal used for indicating a working state of each working chip in the standby device, and generates the current working indication signal of the standby device.

In a possible implementation manner, in the handover control method provided in an embodiment of the present invention, the sending, to the standby device according to the received handover signal, a control signal carrying information for controlling power on or power off of the standby device specifically includes:

determining a mark corresponding to the switching signal in an internal register according to the received switching signal;

and sending a control signal carrying information for controlling the standby equipment to be powered on or powered off to the standby equipment according to the determined mark.

On the other hand, an embodiment of the present invention further provides a method for controlling switching between a master device and a slave device, including:

determining whether a first control signal which is sent by main equipment and carries information for controlling power-on or power-off is received;

when a first control signal which is sent by the main equipment and carries information for controlling power-on or power-off is determined to be received, a preset auxiliary power supply unit is utilized to control the current working state according to the received first control signal and a real-time main/standby arbitration result of the main equipment;

when it is determined that a first control signal carrying power-on or power-off control information sent by the main equipment is not received, adjusting the current equipment state to be the main equipment by using a preset auxiliary power supply unit and a preset pull-down unit; and the pull-down unit is used for determining a second control signal carrying information for adjusting the current equipment state to be the main equipment.

In a possible implementation manner, in the above switching control method provided in this embodiment of the present invention, the controlling, by using a preset auxiliary power supply unit, a current operating state according to the received first control signal and a real-time active/standby arbitration result with the main device specifically includes:

determining a first intermediate signal for indicating whether power-off operation is required or not according to a real-time main/standby arbitration result of the main device and the received first control signal;

determining a second intermediate signal for indicating whether power-on operation is needed or not according to the received first control signal by using the power supply provided by the auxiliary power supply unit;

and controlling the current working state according to the determined first intermediate signal and the second intermediate signal by using the power supply provided by the auxiliary power supply unit.

In a possible implementation manner, in the above switching control method provided in an embodiment of the present invention, the determining, according to a real-time active/standby arbitration result with the active device and the received first control signal, a first intermediate signal used for indicating whether a power-down operation is required to be performed specifically includes:

determining the current equipment state according to the real-time main/standby arbitration result of the main equipment;

when the current equipment state is determined to be the standby equipment, determining a first intermediate signal for indicating that power-off operation is not needed, and determining the first intermediate potential to be a preset second potential; or, determining whether the first control signal is a preset first potential signal;

when the first control signal is determined to be a preset first potential signal, determining a first intermediate signal used for indicating that power-off operation is required, and determining the potential of the first intermediate signal to be a first potential;

when the first control signal is determined not to be the preset first potential signal, a first intermediate signal used for indicating that power-down operation is not needed is determined, and the potential of the first intermediate signal is determined to be in a high-resistance state.

In a possible implementation manner, in the foregoing switching control method provided in an embodiment of the present invention, before determining a current device state of the device according to a real-time active/standby arbitration result with the active device, the method further includes:

and carrying out filtering processing on the first control signal.

In a possible implementation manner, in the foregoing handover control method provided in an embodiment of the present invention, the determining, according to the received first control signal, a second intermediate signal used for indicating whether a power-on operation needs to be performed specifically includes:

determining whether the first control signal is a preset second potential signal;

when the first control signal is determined not to be a preset second potential signal, determining a second intermediate signal used for indicating that no power-on operation is needed, and determining the potential of the second intermediate signal to be in the high-resistance state;

when the first control signal is determined to be a preset second potential signal, determining whether the first control signal is a stable signal;

when the first control signal is determined not to be a stable signal, determining a second intermediate signal which is used for indicating that no power-on operation is needed, and determining the potential of the second intermediate signal to be in the high-resistance state;

when the first control signal is determined to be a stable signal, a second intermediate signal used for indicating that power-on operation is needed is determined, and the potential of the second intermediate signal is determined to be the second potential.

In a possible implementation manner, in the handover control method provided in an embodiment of the present invention, the controlling a current working state according to the determined first intermediate signal and the determined second intermediate signal specifically includes:

when the potential of the first intermediate signal is determined to be in the high-resistance state and the potential of the second intermediate signal is determined to be in the second potential, or when the potential of the first intermediate signal is determined to be in the second potential and the potential of the second intermediate signal is determined to be in the high-resistance state, determining an enabling signal for indicating that power-on operation is required;

controlling the current working state to be a power-on state according to the determined enabling signal for indicating that the power-on operation is required;

when the potential of the first intermediate signal is determined to be the first potential and the potential of the second intermediate signal is determined to be the high-resistance state, determining a non-enabling signal for indicating that power-off operation is required;

and controlling the current working state to be a power-down state according to the determined non-enabling signal for indicating that the power-down operation is required.

In a possible implementation manner, in the above switching control method provided in an embodiment of the present invention, the adjusting, by using a preset auxiliary power supply unit and a pull-down unit, a current device state to be an active device specifically includes:

determining a second intermediate signal for indicating that power-on operation needs to be performed according to the second control signal carrying information for adjusting the current device state to be the main device, which is determined by the pull-down unit, by using the power provided by the auxiliary power unit;

and adjusting the current equipment state to be the main equipment by using the power supply provided by the auxiliary power supply unit according to the determined second intermediate signal for indicating that the power-on operation needs to be carried out.

In a possible implementation manner, in the handover control method provided in an embodiment of the present invention, the determining, according to the second control signal carrying information for adjusting the current device state to be the active device and determined by the pull-down unit, a second intermediate signal used for indicating that a power-on operation needs to be performed specifically includes:

determining whether the second control signal carrying information for adjusting the current device state to be the master device is the second potential signal;

when the second control signal carrying the information for adjusting the current device state to be the active device is determined to be the second potential signal, determining a second intermediate signal used for indicating that power-on operation needs to be performed, and determining the potential of the second intermediate signal to be the second potential.

In a possible implementation manner, in the handover control method provided in an embodiment of the present invention, the adjusting, according to the determined second intermediate signal indicating that the power-on operation needs to be performed, a current device state to be an active device specifically includes:

when the potential of the second intermediate signal is determined to be the second potential, determining an enabling signal for indicating that power-on operation is required;

and adjusting the current working state to be the power-on state according to the determined enabling signal for indicating that the power-on operation is required, so that the adjusted equipment state is the main equipment.

On the other hand, an embodiment of the present invention further provides an active device, including: the system comprises a Central Processing Unit (CPU) unit, a main and standby arbitration unit, an output control unit and a main power supply unit; wherein the content of the first and second substances,

the CPU unit is used for receiving a switching signal which is sent by a network manager and used for controlling the standby equipment to be powered on or powered off;

the main/standby arbitration unit is used for determining whether the current equipment state is the main equipment or not according to the real-time main/standby arbitration result of the standby equipment;

the output control unit is used for sending a control signal carrying information for controlling the standby equipment to be powered on or powered off to the standby equipment according to the received switching signal when the current equipment state of the output control unit is determined to be the main equipment;

the main power supply unit is used for respectively providing power for the CPU unit, the main and standby arbitration units and the output control unit.

In a possible implementation manner, in the above-mentioned main device provided in the embodiment of the present invention, the main-standby arbitration unit is specifically configured to determine whether a current in-place indication signal of the main-standby arbitration unit is a preset first potential signal according to a real-time main-standby arbitration result of the main-standby arbitration unit and the standby device; when the current in-place indication signal is determined not to be the preset first potential signal, determining that the current equipment state is the standby equipment; when the current on-site indication signal is determined to be a preset first potential signal, determining whether the current main/standby state signal is a preset second potential signal; when the current main/standby state signal is determined not to be the preset second potential signal, determining that the current equipment state is the standby equipment; when the current main/standby state signal is determined to be a preset second potential signal, determining whether the current working indication signal is the second potential signal; when the current working indication signal is determined not to be the second potential signal, determining that the current equipment state is the standby equipment; and when the current working indication signal is determined to be the second potential signal, determining that the current equipment state is the active equipment.

In a possible implementation manner, in the foregoing active device provided in the embodiment of the present invention, a real-time active/standby arbitration mechanism between the active device and the standby device is as follows: and performing real-time automatic negotiation processing according to a first state signal group which is sent to a main/standby arbitration unit in the standby equipment by the main/standby arbitration unit in the standby equipment and carries a current in-place indication signal, a main/standby state signal and a working indication signal, and a second state signal group which is sent to the main/standby arbitration unit in the standby equipment and carries the current in-place indication signal, the main/standby state signal and the working indication signal of the standby equipment by the main/standby arbitration unit in the standby equipment, and determining respective equipment states.

In a possible implementation manner, in the above-mentioned main device provided in the embodiment of the present invention, before the main/standby arbitration unit in the main/standby arbitration unit sends the first state signal group carrying the present in-place indication signal, the main/standby state signal, and the working indication signal to the main/standby arbitration unit in the standby device, the main/standby arbitration unit in the main/standby arbitration unit performs logic and processing on the first indication signal for indicating the working state of the CPU of the central processing unit itself and the second indication signal for indicating the working state of each working chip of the main/standby arbitration unit itself, so as to generate the present working indication signal of the main/standby arbitration unit itself; before a main/standby arbitration unit in the standby device sends a second state signal set carrying a current in-place indication signal, a main/standby state signal and a working indication signal of the standby device to a main/standby arbitration unit inside the standby device, the main/standby arbitration unit in the standby device performs logic and processing on a third indication signal used for indicating a working state of a CPU in the standby device and a fourth indication signal used for indicating a working state of each working chip in the standby device, and generates the current working indication signal of the standby device.

In a possible implementation manner, in the above-mentioned main device provided in this embodiment of the present invention, the CPU unit is further configured to determine, according to the received switching signal, a flag in an internal register, where the flag corresponds to the switching signal;

and the output control unit is specifically configured to send a control signal carrying information for controlling the standby device to power on or power off to the standby device according to the determined mark.

In a possible implementation manner, in the above-mentioned active device provided in the embodiment of the present invention, the output control unit is a complex editable logic device or a field-editable gate array.

On the other hand, an embodiment of the present invention further provides a standby device, including: the device comprises a determining unit, a first adjusting unit, a second adjusting unit, a pull-down unit, a main power supply unit and an auxiliary power supply unit; wherein the content of the first and second substances,

the determining unit is configured to determine whether a first control signal carrying information for controlling power-on or power-off is received, where the first control signal is sent by the master device;

the first adjusting unit is configured to, when it is determined that a first control signal carrying information for controlling power-on or power-off sent by the active device is received, control a current operating state according to the received first control signal and a real-time active-standby arbitration result with the active device by using the auxiliary power supply unit;

the second adjusting unit is configured to adjust a current device state to be the active device by using the auxiliary power supply unit and the pull-down unit when it is determined that the first control signal carrying information for controlling power-on or power-off sent by the active device is not received;

the pull-down unit is used for determining a second control signal carrying information for adjusting the current equipment state to be the main equipment;

the active power supply unit is used for providing power for the first adjustment unit and the second adjustment unit of the determination unit;

the auxiliary power supply unit is used for supplying power to the first adjusting unit and the second adjusting unit.

In a possible implementation manner, in the standby device provided in an embodiment of the present invention, the first adjusting unit specifically includes: the power-off control circuit, the first power-on control circuit and the first adjustment control circuit; wherein the content of the first and second substances,

the power-off control circuit is used for determining a first intermediate signal for indicating whether power-off operation is required or not according to a real-time main/standby arbitration result of the main equipment and the received first control signal;

the first power-on control circuit is used for determining a second intermediate signal for indicating whether power-on operation is needed or not according to the received first control signal by using the power supply provided by the auxiliary power supply unit;

the first adjustment control circuit is configured to control a current working state according to the determined first intermediate signal and the determined second intermediate signal by using the power provided by the auxiliary power supply unit.

In a possible implementation manner, in the standby device provided in the embodiment of the present invention, the power-down control circuit is specifically configured to determine a current device state of the standby device according to a real-time active-standby arbitration result of the active device; when the current equipment state is determined to be the standby equipment, determining a first intermediate signal for indicating that power-off operation is not needed, and determining the first intermediate potential to be a preset second potential; or, determining whether the first control signal is a preset first potential signal; when the first control signal is determined to be a preset first potential signal, determining a first intermediate signal used for indicating that power-off operation is required, and determining the potential of the first intermediate signal to be a first potential; when the first control signal is determined not to be the preset first potential signal, a first intermediate signal used for indicating that power-down operation is not needed is determined, and the potential of the first intermediate signal is determined to be in a high-resistance state.

In a possible implementation manner, in the standby device provided in the embodiment of the present invention, the power-down control circuit is further specifically configured to perform filtering processing on the first control signal.

In a possible implementation manner, in the standby device provided in the embodiment of the present invention, the first power-on control circuit is specifically configured to determine whether the first control signal is a preset second potential signal; when the first control signal is determined not to be a preset second potential signal, determining a second intermediate signal used for indicating that no power-on operation is needed, and determining the potential of the second intermediate signal to be in the high-resistance state; when the first control signal is determined to be a preset second potential signal, determining whether the first control signal is a stable signal; when the first control signal is determined not to be a stable signal, determining a second intermediate signal which is used for indicating that no power-on operation is needed, and determining the potential of the second intermediate signal to be in the high-resistance state; when the first control signal is determined to be a stable signal, a second intermediate signal used for indicating that power-on operation is needed is determined, and the potential of the second intermediate signal is determined to be the second potential.

In a possible implementation manner, in the standby device provided in an embodiment of the present invention, the first adjustment control circuit specifically includes: a first enable control sub-circuit and a first state adjustment sub-circuit; wherein the content of the first and second substances,

the first enable control sub-circuit is configured to determine an enable signal indicating that a power-on operation is required when the potential of the first intermediate signal is determined to be in the high-impedance state and the potential of the second intermediate signal is determined to be in the second potential, or when the potential of the first intermediate signal is determined to be in the second potential and the potential of the second intermediate signal is determined to be in the high-impedance state; when the potential of the first intermediate signal is determined to be the first potential and the potential of the second intermediate signal is determined to be the high-resistance state, determining a non-enabling signal for indicating that power-off operation is required;

the first state adjusting sub-circuit is used for controlling the current working state to be the power-on state according to the determined enabling signal for indicating that the power-on operation is required; and controlling the current working state to be a power-down state according to the determined non-enabling signal for indicating that the power-down operation is required.

In a possible implementation manner, in the standby device provided in an embodiment of the present invention, the second adjusting unit specifically includes: a second power-on control circuit and a second regulation control circuit; wherein the content of the first and second substances,

the second power-on control circuit is configured to determine, by using the power supply provided by the auxiliary power supply unit, a second intermediate signal used for indicating that a power-on operation needs to be performed according to the second control signal carrying information for adjusting the current device state to be the active device, which is determined by the pull-down unit;

and the second adjustment control circuit is configured to adjust the current device state to be the active device according to the determined second intermediate signal indicating that the power-on operation needs to be performed, by using the power provided by the auxiliary power supply unit.

In a possible implementation manner, in the standby device provided in the embodiment of the present invention, the second power-on control circuit is specifically configured to determine whether the second control signal carrying information for adjusting a current device state to be the active device is the second potential signal; when the second control signal carrying the information for adjusting the current device state to be the active device is determined to be the second potential signal, determining a second intermediate signal used for indicating that power-on operation needs to be performed, and determining the potential of the second intermediate signal to be the second potential.

In a possible implementation manner, in the standby device provided in an embodiment of the present invention, the second adjustment control circuit specifically includes: a second enable control sub-circuit and a second state adjustment sub-circuit; wherein the content of the first and second substances,

the second enable control sub-circuit is used for determining an enable signal for indicating that power-on operation is required when the potential of the second intermediate signal is determined to be the second potential;

and the second state adjusting sub-circuit is used for adjusting the current working state to be the power-on state according to the determined enabling signal for indicating that the power-on operation needs to be carried out, so that the adjusted equipment state is the main equipment.

In a possible implementation manner, in the standby device provided in the embodiment of the present invention, the first power-on control circuit and the second power-on control circuit are the same circuit formed by logic devices;

the first enabling control sub-circuit and the second enabling control sub-circuit are the same sub-circuit formed by a logic device and an optical coupling chip;

the first state adjustment sub-circuit and the second state adjustment sub-circuit are the same sub-circuit.

In a possible implementation manner, in the standby device provided in the embodiment of the present invention, the active power supply unit is specifically configured to provide an active power supply for the first state adjustment sub-circuit;

the auxiliary power supply unit is specifically configured to provide an auxiliary power supply for the first power-on control circuit and the first enable control sub-circuit.

In a possible implementation manner, in the above standby device provided in this embodiment of the present invention, the first state adjustment sub-circuit is further configured to provide a power supply for the power-down control circuit.

On the other hand, an embodiment of the present invention further provides a switching control system for a host/standby device, including: the main device provided by the embodiment of the present invention, the standby device provided by the embodiment of the present invention, the first power supply panel, the second power supply panel, and the network manager electrically connected to the main device and the standby device, respectively; wherein the content of the first and second substances,

the structure of the main equipment is completely the same as that of the standby equipment;

the first power panel and/or the second power panel are used for providing power for the main equipment and the standby equipment;

and the network manager is used for sending the received switching signal which is sent remotely and used for controlling the standby equipment to be powered on or powered off to the main equipment.

In a possible implementation manner, in the above handover control system provided in this embodiment of the present invention, the active device and the standby device each include at least: the CPU unit, the main and standby arbitration units, the output control unit, the first power-on control circuit, the power-off control circuit, the first enable control sub-circuit, the first state adjustment sub-circuit, the pull-down unit, the main power supply unit and the auxiliary power supply unit.

In a possible implementation manner, in the above switching control system provided in this embodiment of the present invention, the first power strip and/or the second power strip are specifically configured to provide power for the active power supply unit and the auxiliary power supply unit in the active device, and to provide power for the active power supply unit and the auxiliary power supply unit in the standby device.

The invention has the following beneficial effects:

according to the switching control method of the main and standby equipment, the switching control system and the switching control device provided by the embodiment of the invention, through setting the switching control method of the main and standby equipment, the main equipment can control the standby equipment to be powered on or powered off, and then the main equipment can control the standby equipment to be thoroughly reset; in addition, the main-standby relationship between the two devices can be determined in real time through the real-time main-standby arbitration result between the main device and the standby device, and then the control of the other device is realized through the respective main-standby states, so that the normal work of the local side device is ensured; in addition, when the standby device does not receive the control signal sent by the main device, the standby device can be automatically upgraded to the main device through the preset auxiliary power supply unit and the pull-down unit to complete the work, so that the problem that the local-side device cannot work normally due to the fault of the main device is avoided, and the smoothness of a communication network is effectively ensured.

Drawings

Fig. 1 is a flowchart of a method for controlling switching between a master device and a slave device according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a main/standby arbitration unit in a main device and a main/standby arbitration unit in a standby device according to an embodiment of the present invention;

fig. 3 is a second flowchart of a method for controlling switching between a master device and a slave device according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a primary device provided in an embodiment of the present invention;

FIG. 5 is a flow chart of a method according to a first embodiment of the present invention;

fig. 6 is a third flowchart of a method for controlling switching between a master device and a slave device according to an embodiment of the present invention;

fig. 7 is a fourth flowchart of a method for controlling switching between a master device and a slave device according to an embodiment of the present invention;

fig. 8 to fig. 10 are schematic structural diagrams of a standby device according to an embodiment of the present invention;

FIG. 11 is a flow chart of a method of a second embodiment provided in an embodiment of the present invention;

FIG. 12 is a flow chart of a method of a third embodiment provided in an embodiment of the present invention;

fig. 13 is a schematic structural diagram of a switching control system of a master/slave device according to an embodiment of the present invention.

Detailed Description

The following describes in detail specific embodiments of a method for controlling switching between main and standby devices, a system for controlling switching between main and standby devices, and a device according to an embodiment of the present invention with reference to the accompanying drawings. It should be noted that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

An embodiment of the present invention provides a method for controlling switching between a primary device and a standby device, where, on a side of a primary device, as shown in fig. 1, the method may include:

s101, receiving a switching signal which is sent by a network manager and used for controlling the standby equipment to be powered on or powered off;

s102, determining whether the current equipment state is the main equipment or not according to the real-time main/standby arbitration result of the standby equipment; if yes, go to step S103; if not, executing step S104;

s103, sending a control signal carrying information for controlling the standby equipment to be powered on or powered off to the standby equipment according to the received switching signal;

and S104, not sending a control signal to the standby equipment.

It should be noted that, in the prior art, when determining the primary/secondary relationship between two devices, the primary/secondary relationship is completed through a Central Processing Unit (CPU) in the device, and once the CPU is abnormal, the primary/secondary state is frequently switched, which further reduces the reliability of the system; in the switching control method provided in the embodiment of the present invention, the main/standby relationship between the two devices may be determined in real time by using the main/standby arbitration units disposed in the two devices according to the real-time main/standby arbitration result between the main device and the standby device, instead of determining the main/standby relationship by using the CPU, so that even if the CPU is abnormal, the problem of frequent main/standby switching does not occur, thereby improving the reliability of the system; and through the setting of the switching control method of the main and standby equipment, the main equipment can control the standby equipment to be powered on or powered off, and then the main equipment can control the standby equipment to be thoroughly reset, so that the normal work of the local side equipment is ensured.

In addition, it should be noted that the active device and the standby device are both installed on the backplane, and the active device and the standby device may be installed on the backplane through a slot arranged on the backplane, so as to implement the fixation and electrical connection of the active device and the standby device; of course, the fixing and the electrical connection between the active device and the standby device may also be implemented by other manners, which is not limited herein. In addition, the main device and the standby device do not need to interact through a protocol, and only a switching signal sent by the main device needs to be transmitted to the standby device through a signal line in the slot, so that the method is simple and convenient, the communication interaction process is greatly simplified, and the efficiency of controlling the standby device to carry out power-on operation or power-off operation by the main device is improved.

Therefore, in the embodiment of the invention, when the control signal carrying the information for controlling the power-on or power-off of the standby equipment is sent to the standby equipment, the control signal is transmitted through the signal wire which is arranged in the slot in advance and is electrically connected with the standby equipment, so that the direct transmission of the control signal can be realized, the efficiency of signal transmission is improved, the complexity of signal transmission by using a protocol is avoided, and the signal transmission is simplified.

In specific implementation, in order to transmit the control signal to the standby device, step S103 in the foregoing switching control method provided in the embodiment of the present invention, according to the received switching signal, sends a control signal carrying information for controlling the standby device to power on or power off to the standby device, which may specifically include:

Specifically, after receiving the switching signal and when determining that the switching signal is currently the active device, the switching signal is analyzed, it is determined whether the received switching signal is to control the standby device to be powered on or powered off, and after the determination, the internal register is marked according to the switching signal. For example, after the analysis, if it is determined that the standby device is to be powered on, the flag of the internal register is marked as 1, and if it is determined that the standby device is to be powered off, the flag of the internal register is marked as 0; of course, the marking of the internal register according to the switching signal is only illustrated here, so the marking is not limited to 1 and 0, and may be other numbers or letters, and the like, and is not limited herein.

Specifically, after the mark is determined, a control signal is sent to the standby equipment according to the mark, so that the working state of the standby equipment is controlled; generally, whether to power up or power down the backup device can be determined by setting the potential height of the control signal. For example, when it is determined that the standby device is powered on and the flag of the register is 1, a control signal having a low potential is sent to the standby device; if the standby equipment is determined to be powered off and the mark of the register is 0, sending a control signal with high potential to the standby equipment; of course, the description is only given here by way of example to how the control signal is transmitted according to the flag, and therefore, the power-on operation of the standby device may be indicated when the potential of the control signal is high, and the power-off operation of the standby device may be indicated when the potential of the control signal is low, which is not limited herein.

In specific implementation, in order to determine the main/standby arbitration result in real time, the main/standby arbitration result may be implemented by interaction between a main/standby arbitration unit in the main device 1 and a main/standby arbitration unit in the standby device 4 shown in fig. 2; in fig. 2, the structures of the main device 1 and the standby device 4 are completely the same, only a CPU unit and a main/standby arbitration unit are shown in the figure, and the main/standby arbitration unit is installed on a Field Programmable Gate Array (FPGA); wherein, 2 is used to represent the CPU unit in the main device 1, 3 is used to represent the main/standby arbitration unit in the main device 1, 5 is used to represent the CPU unit in the standby device 4, and 6 is used to represent the main/standby arbitration unit in the standby device 4; and, the main standby arbitration units each include: CPU state detection circuit, normal operating state indicating circuit, logic processing circuit, main and standby arbitration circuit and filter circuit.

Specifically, the functions of the CPU unit mainly include the following: firstly, a CPU unit sends a low-frequency pulse signal to a CPU state detection circuit in a main and standby arbitration unit; then, the CPU state detection circuit judges whether the CPU unit works normally or not through real-time sampling, and then a first indication signal is input to the logic processing circuit; the CPU unit works normally when the potential of the first indicating signal is high potential, and the CPU unit works abnormally when the potential of the first indicating signal is low potential; secondly, the CPU unit may also access each working chip (such as a main working chip, a temperature monitoring chip, a voltage monitoring chip, etc., not shown) in the belonging device through a preset bus (not shown), and then write a corresponding flag into a register in the working normal state indicating circuit; then the working normal state indicating circuit inputs a second indicating signal to the logic processing circuit according to the mark of the internal register; when all the working chips work normally, 1 is written into a register in the working normal state indicating circuit, and the potential of a second indicating signal is high potential, otherwise, 0 is written into the register in the working normal state indicating circuit, and the potential of the second indicating signal is low potential; thirdly, the CPU unit may also access a register in the main/standby arbitration circuit through a preset bus to implement the main/standby switching enable control and the forced main/standby switching function.

Of course, the potential of the first indication signal and the potential of the second indication signal may be opposite to the above-described potentials, and the potentials are not limited as long as the operation states of the respective members can be described.

Further, as shown in fig. 2, the backup apparatus 4 includes, in addition to 5 and 6: a first resistor R1, a second resistor R2 and a third resistor R3; the master device 1 includes, in addition to 2 and 3: a fourth resistor R4, a fifth resistor R5 and a sixth resistor R6; the second resistor R2, the third resistor R3, the fifth resistor R5 and the sixth resistor R6 are pull-down resistors; the pull-down resistor is used for enabling the device to receive valid signals and upgrading the device to be a master through arbitration logic when another device is not in place, and the pull-up resistor is used for enabling the device to receive valid signals when another device is plugged in or pulled out.

For example, taking the fifth resistor R5 and the sixth resistor R6 in the active device 1 as an example, the fifth resistor R5 and the sixth resistor R6 are used for enabling the active device 1 to receive valid signals when the standby device 4 is not in place; taking the fourth resistor R4 in the active device 1 as an example, the fourth resistor R4 is used for enabling the active device 1 to receive valid signals when the standby device 4 is plugged in or unplugged from the active device.

Specifically, in the above switching control method provided in the embodiment of the present invention, with reference to the structure shown in fig. 2, the real-time active/standby arbitration mechanism of the active device and the standby device is as follows: according to a first state signal group which is sent to a main/standby arbitration unit in the standby device by the main/standby arbitration unit in the main/standby device and carries a current on-position indication signal online, a main/standby state signal act and a working indication signal work of the main/standby device, and a second state signal group which is sent to the main/standby arbitration unit in the standby device by the main/standby arbitration unit in the standby device and carries the current on-position indication signal online, the main/standby state signal act and the working indication signal work of the standby device, real-time automatic negotiation processing is carried out, and respective device states are determined. Therefore, the main-standby relationship between the two devices can be judged according to the interaction between the main-standby arbitration units without determining the main-standby relationship through the CPU, and a basis is provided for the main device to control the standby device to be powered on or powered off; and the real-time result is obtained through the interaction between the main arbitration unit and the standby arbitration unit, so that the adjustment can be carried out at any time according to the real-time result, and the normal work of the local side equipment is effectively ensured.

Further, in the switching control method provided in the embodiment of the present invention, as shown in fig. 2, before the main/standby arbitration unit in the main/standby arbitration unit sends the first status signal group carrying the present on-bit indication signal online, the main/standby status signal act, and the working indication signal work to the main/standby arbitration unit in the standby device, the main/standby arbitration unit in the main/standby arbitration unit performs logic and processing on the first indication signal 1_ ok used for indicating the working status of the CPU of the main/standby arbitration unit and the second indication signal 2_ ok used for indicating the working status of each working chip of the main/standby arbitration unit, and generates the present working indication signal work of the main/standby arbitration unit;

before a main/standby arbitration unit in the standby device sends a second state signal group carrying a current on-position indication signal online, a main/standby state signal act and a working indication signal work of the standby device to the main/standby arbitration unit in the standby device, the main/standby arbitration unit in the standby device performs logic and processing on a third indication signal 3_ ok used for representing the working state of a CPU in the standby device and a fourth indication signal 4_ ok used for representing the working state of each working chip in the standby device to generate a current working indication signal work of the standby device.

Specifically, taking the active device 1 as an example, the reason for performing the above logic and processing is as follows: if no logic and processing exists, when a fault occurs in 2, the potential of the second indication signal 2_ ok may remain unchanged and still be a high potential, and at this time, the main/standby switching is not triggered, so that services, management and the like cannot be switched to the standby equipment; therefore, the hardware watchdog is reset, the local side device is restarted, and the main/standby switching is triggered at the moment. In general, from 2 times of crash to the restart of the local side device, the time for the main/standby switching is in the second level, so that the requirement of the main/standby switching in 50 milliseconds cannot be met. In the embodiment of the present invention, first, the first indication signal 1_ ok and the second indication signal 2_ ok are logically and-processed and then sent to the standby device 6, so that an exception is output only when one of the first indication signal 1_ ok and the second indication signal 2_ ok is abnormal, and the standby/standby switching is triggered after the exception is sensed by the standby device 6; the switching time is mainly logic gate delay, so that the switching requirement of 50 milliseconds can be met, and the reliability of the local-side equipment is improved.

Of course, the above only explains and explains the necessity of logic and processing by taking the active device as an example, and the logic and processing will be performed in the standby device as well, for the specific reason, see the above, and the repeated parts will not be described again.

In a specific implementation, in order to determine a current device state of the switching control method, so as to further determine whether to send a control signal to the standby device, in step S102 of the switching control method provided in the embodiment of the present invention, it is determined whether the current device state of the switching control method is an active device according to a real-time active-standby arbitration result with the standby device, as shown in fig. 3, which may specifically include:

s301, determining whether the current on-site indication signal online is a preset first potential signal or not according to a real-time main/standby arbitration result of the standby equipment; if yes, go to step S302; if not, go to step S305;

s302, determining whether the current active/standby state signal act is a preset second potential signal; if yes, go to step S303; if not, go to step S305;

s303, determining whether the current work indication signal work is a second potential signal; if yes, go to step S304; if not, go to step S305;

s304, determining the current equipment state as the main equipment;

s305, determining the current equipment state as the standby equipment.

Specifically, according to the method, a real-time main/standby arbitration result can be obtained, and the current device state of the main/standby arbitration result can be determined at any time, so that the main device can send a control signal to the standby device, thereby controlling the working state of the standby device, achieving the purpose that the main device controls the standby device to be completely reset, and being beneficial to the normal operation and working of the local side device.

In addition, as shown in fig. 2, the on-site indication signal online indicates whether the active device 1 is on site, that is, whether the active device 1 is inserted into the backplane, if so, the potential of the on-site indication signal online may be set to a first potential, otherwise, the potential of the on-site indication signal online may be set to a second potential; the active-standby state signal act indicates whether the device currently sending the control signal is an active device, if the device currently sending the state signal is the active device, the potential of the active-standby state signal act can be set to be a second potential, otherwise, the potential of the active-standby state signal act is set to be a first potential; the work indication signal work indicates whether the main device 1 works normally, if the main device 1 works normally, the potential of the work indication signal work can be set to be the second potential, otherwise, the potential of the work indication signal work can be set to be the first potential.

Wherein the first potential may be set to a low potential and the second potential may be set to a high potential; of course, the first potential may be set to a high potential, and the second potential may be set to a low potential, as long as the state of the active device can be described by the potential height, which is not limited herein.

It should be noted that, regardless of the standby device or the active device, the hot plug characteristic of the FPGA itself can be directly implemented to implement hot plug processing, and a related driver chip needs to be added in the middle, so that the manufacturing cost of the local device can be saved; meanwhile, the number of the driving chips is reduced, so that the reliability can be greatly improved, and the smoothness of network communication is ensured.

Based on the same inventive concept, embodiments of the present invention further provide an active device, and since the principle of the active device is similar to that of the foregoing switching control method for the active device on one side of the active device, specific embodiments of the active device may refer to the specific embodiments of the switching control method, and repeated details are omitted.

Specifically, as shown in fig. 4, the active device provided in the embodiment of the present invention may include: a CPU unit 401, a main/standby arbitration unit 402, an output control unit 403, and a main power supply unit 404; wherein the content of the first and second substances,

the CPU unit 401 is configured to receive a switching signal sent by a network manager and used for controlling the standby device to power on or power off;

a main/standby arbitration unit 402, configured to determine whether a current device state of the device is a main device according to a real-time main/standby arbitration result of the standby device;

an output control unit 403, configured to send a control signal carrying information for controlling the standby device to power on or power off to the standby device according to the received switching signal when it is determined that the current device state of the output control unit is the active device;

an active power supply unit 404, configured to provide power to the CPU unit 401, the active-standby arbitration unit 402, and the output control unit 403, respectively.

In the main device provided in the embodiment of the present invention, the main-standby arbitration unit disposed in the two devices may be utilized to determine the main-standby relationship between the two devices in real time according to the real-time main-standby arbitration result between the main device and the standby device, instead of determining the main-standby relationship by using the CPU, so that even if the CPU is abnormal, the problem of frequent main-standby switching does not occur, thereby improving the reliability of the system; in addition, the standby equipment can be controlled to be powered on or powered off through the main equipment, and then the main equipment is used for controlling the standby equipment to be thoroughly reset, so that the normal work of the local side equipment is ensured.

In a specific implementation, in the foregoing active device provided in the embodiment of the present invention, the active-standby arbitration unit 402 is specifically configured to determine whether a current in-place indication signal of the active-standby arbitration unit is a preset first potential signal according to a real-time active-standby arbitration result of the active-standby device; when the current in-place indication signal is determined not to be the preset first potential signal, determining that the current equipment state is the standby equipment; when the current on-site indication signal is determined to be a preset first potential signal, determining whether the current main/standby state signal is a preset second potential signal; when the current main/standby state signal is determined not to be the preset second potential signal, determining that the current equipment state is the standby equipment; when the current main/standby state signal is determined to be a preset second potential signal, determining whether the current working indication signal is the second potential signal; when the current working indication signal is determined not to be the second potential signal, determining that the current equipment state is the standby equipment; and when the current working indication signal is determined to be the second potential signal, determining that the current equipment state is the main equipment.

Specifically, in the above-mentioned active device provided in the embodiment of the present invention, the real-time active/standby arbitration mechanism with the standby device is as follows: according to a first state signal group which is sent to a main/standby arbitration unit in standby equipment by a main/standby arbitration unit in the standby equipment and carries a current on-position indication signal, a main/standby state signal and a working indication signal of the standby equipment, and a second state signal group which is sent to the main/standby arbitration unit in the standby equipment and carries the current on-position indication signal, the main/standby state signal and the working indication signal of the standby equipment by the main/standby arbitration unit in the standby equipment, real-time automatic negotiation processing is carried out, and respective equipment states are determined.

Further, in the above-mentioned main device provided in the embodiment of the present invention, before the main/standby arbitration unit in the main/standby arbitration unit sends the first state signal set carrying the present in-place indication signal, the main/standby state signal, and the working indication signal to the main/standby arbitration unit in the standby device, the main/standby arbitration unit in the main/standby arbitration unit performs logic and processing on the first indication signal for indicating the working state of the CPU of the main/standby unit and the second indication signal for indicating the working state of each working chip of the main/standby arbitration unit, so as to generate the present working indication signal; before a main/standby arbitration unit in the standby device sends a second state signal group carrying a current on-position indication signal, a main/standby state signal and a working indication signal of the standby device to a main/standby arbitration unit inside the standby device, the main/standby arbitration unit in the standby device performs logic and processing on a third indication signal used for indicating the working state of a CPU in the standby device and a fourth indication signal used for indicating the working state of each working chip in the standby device to generate a current working indication signal of the standby device.

In specific implementation, in the above-mentioned main device provided in this embodiment of the present invention, the CPU unit 401 is further configured to determine, according to the received switching signal, a flag corresponding to the switching signal in an internal register;

the output control unit 403 is specifically configured to send a control signal carrying information for controlling the standby device to power on or power off to the standby device according to the determined mark.

In specific implementation, in the main device provided in the embodiment of the present invention, the output control unit 403 may be a complex editable logic device or a field editable gate array; of course, other structures may be used to implement the function of the output control unit 403, and are not limited herein.

The working process of the above-mentioned active device provided in the embodiment of the present invention will be described in detail below with reference to specific embodiments.

The first embodiment is as follows: in conjunction with the flow chart of the method shown in fig. 5.

S501, a CPU unit receives a switching signal which is sent by a network manager and used for controlling the standby equipment to be powered on or powered off;

s502, the main/standby arbitration unit determines whether the current equipment state is main equipment or not according to the real-time main/standby arbitration result of the main/standby equipment; if yes, go to step S503; if not, executing step S505;

s503, the CPU unit determines a mark corresponding to the switching signal in an internal register according to the received switching signal;

s504, the output control module sends a control signal carrying information for controlling the standby equipment to be powered on or powered off to the standby equipment according to the determined mark;

and S505, the output control module does not send a control signal to the standby equipment.

Based on the same inventive concept, an embodiment of the present invention further provides a method for controlling switching between a main device and a standby device, where, as shown in fig. 6, the method may include:

s601, determining whether a first control signal which is sent by a main device and carries information for controlling power-on or power-off is received; if yes, go to step S602; if not, executing step S603;

s602, controlling the current working state by using a preset auxiliary power supply unit according to the received first control signal and the real-time main/standby arbitration result of the main equipment;

s603, adjusting the current equipment state to be the main equipment by utilizing a preset auxiliary power supply unit and a pull-down unit; the pull-down unit is used for determining a second control signal carrying information for adjusting the current device state to be the active device.

According to the switching control method provided by the embodiment of the invention, through setting the switching control method of the main equipment and the standby equipment, the main equipment can control the standby equipment to be powered on or powered off, and then the main equipment can control the standby equipment to be thoroughly reset; and when the control signal sent by the main device is not received, the standby device can be automatically upgraded to the main device to complete the work through the preset auxiliary power supply unit and the pull-down unit, so that the problem that the local-side device cannot work normally due to the fault of the main device is avoided, and the smoothness of the communication network is effectively ensured.

In addition, under the action of the power supply provided by the preset auxiliary power supply unit, the auxiliary power supply unit can ensure that the standby equipment can be powered on when the main equipment fails, and the auxiliary power supply unit can normally process the control signal sent by the main equipment when the standby equipment is in a power-off state, so that the normal operation of the local-side equipment is ensured while the main equipment controls the standby equipment to be powered on or powered off, and the operability of the local-side equipment is improved.

In specific implementation, in order to control the current operating state after receiving the first control signal sent by the active device, in step S602 in the foregoing switching control method provided in this embodiment of the present invention, a preset auxiliary power supply unit is used to control the current operating state according to the received first control signal and the real-time active/standby arbitration result with the active device, as shown in fig. 7, which may specifically include:

s701, determining a first intermediate signal for indicating whether power-off operation is needed or not according to a real-time main/standby arbitration result of the main equipment and a received first control signal;

s702, determining a second intermediate signal for indicating whether power-on operation is needed or not according to the received first control signal by using a power supply provided by the auxiliary power supply unit;

and S703, controlling the current working state according to the determined first intermediate signal and the second intermediate signal by using the power supply provided by the auxiliary power supply unit.

Specifically, in order to determine the first intermediate signal, in step S701 of the above switching control method according to the embodiment of the present invention, the determining, according to the real-time active/standby arbitration result with the active device and the received first control signal, the first intermediate signal used for indicating whether a power-down operation is required may specifically include:

when the first control signal is determined not to be the preset first potential signal, a first intermediate signal indicating that power-down operation is not required is determined, and the potential of the first intermediate signal is determined to be in a high-resistance state.

Specifically, when determining the current device state according to the real-time active/standby arbitration result of the active device, the determination method is similar to the method shown in fig. 3, and it is determined whether the on-bit indication signal online, the active/standby state signal act, and the working indication signal work are preset signals according to the real-time active/standby arbitration result, so as to determine whether the current device state is a standby device or an active device, and repeated details are omitted.

However, after the active device is inserted from the backplane, noise, such as glitch, may occur in the first control signal sent to the standby device, and such signal may affect subsequent identification and detection, thereby reducing the stability of signal processing; therefore, in the above switching control method provided in this embodiment of the present invention, before determining the current device state of the device according to the real-time active/standby arbitration result with the active device, the method may further include: filtering the first control signal; the filtering mode filters burrs or other interferences of the first control signal, and improves the stability of the first control signal so as to facilitate subsequent processing.

Specifically, in order to determine the second intermediate signal, in step S702 of the handover control method according to the embodiment of the present invention, determining the second intermediate signal used for indicating whether a power-on operation needs to be performed according to the received first control signal may specifically include:

when the first control signal is determined not to be the preset second potential signal, determining a second intermediate signal used for indicating that no power-on operation is needed, and determining that the potential of the second intermediate signal is in a high-resistance state;

when the first control signal is determined to be the preset second potential signal, determining whether the first control signal is a stable signal;

when the first control signal is determined not to be a stable signal, determining a second intermediate signal which is used for indicating that no power-on operation is needed, and determining the potential of the second intermediate signal to be in a high-impedance state;

when the first control signal is determined to be a stable signal, a second intermediate signal used for indicating that power-on operation is needed is determined, and the potential of the second intermediate signal is determined to be a second potential.

It should be noted that, before determining the second intermediate signal according to the received first control signal, the first control signal also needs to be subjected to filtering processing to filter out glitches or other interferences in the first control signal, so as to improve the stability of the first control signal, so as to facilitate subsequent processing. In addition, when determining the state of the second intermediate signal, it is necessary to ensure that the second intermediate signal is stable within a preset time, so as to avoid a subsequent operation error caused by instability of the second intermediate signal, thereby avoiding a disorder in the operation of the office device.

Specifically, in order to control the current operating state according to the first intermediate signal and the second intermediate signal, in step S703 in the above switching control method provided in the embodiment of the present invention, the controlling the current operating state according to the determined first intermediate signal and the determined second intermediate signal may specifically include:

when the potential of the first intermediate signal is determined to be in a high-resistance state and the potential of the second intermediate signal is determined to be in a second potential, or when the potential of the first intermediate signal is determined to be in the second potential and the potential of the second intermediate signal is determined to be in the high-resistance state, an enabling signal used for indicating that power-on operation is required to be carried out is determined;

when the potential of the first intermediate signal is determined to be a first potential and the potential of the second intermediate signal is in a high-resistance state, determining a non-enabling signal for indicating that power-down operation is required;

Specifically, when the current operating state is controlled according to the first intermediate signal and the second intermediate signal, there are only three relationships between the first intermediate signal and the second intermediate signal, as shown in table 1; wherein the first potential represents a high potential and the second potential represents a low potential; of course, the first potential and the second potential are not limited thereto, and are only illustrated and not limited herein.

TABLE 1

As can be seen from table 1, the state relationships between the first intermediate signal and the second intermediate signal are only three, so that a situation that one of the first intermediate signal and the second intermediate signal is low and the other is high does not occur between the first intermediate signal and the second intermediate signal, so as to avoid a problem that the current working state is controlled according to the first intermediate signal and the second intermediate signal in a subsequent process, which is disordered and cannot be controlled, thereby improving the accuracy and efficiency of the switching control.

In a specific implementation, in step S603 of the above switching control method provided in this embodiment of the present invention, using a preset auxiliary power unit and a pull-down unit to adjust a current device state to be an active device may specifically include:

determining a second intermediate signal for indicating that power-on operation needs to be performed by using a power supply provided by the auxiliary power supply unit according to a second control signal which is determined by the pull-down unit and carries information for adjusting the current equipment state to be the main equipment;

Specifically, when the pull-down resistor is arranged, one end of the pull-down resistor is grounded, and a signal line for transmitting signals between the main device and the standby device is electrically connected with the other end of the pull-down resistor, so that when the main device does not send a first control signal through the signal line, a second control signal is sent to the standby device through the pull-down resistor through the signal line, and the standby device is controlled to be powered on; therefore, when the first control signal is not received, the action of sending the second control signal does not need the control of the main equipment, and the power-on operation can be realized only by pulling down the resistor, and the first control signal is automatically upgraded to the main equipment, so that when the main equipment is not in place or fails, one equipment can still be ensured to be in a normal working state, and the normal work of the local side equipment is ensured.

Specifically, in order to determine a second intermediate signal according to a second control signal after a first control signal sent by the active device is not received, in the handover control method provided in the embodiment of the present invention, determining the second intermediate signal used for indicating that a power-on operation needs to be performed according to the second control signal carrying information for adjusting the current device state to be the active device and determined by the pull-down unit may specifically include:

determining whether a second control signal carrying information for adjusting the current equipment state to be the main equipment is a second potential signal;

and when determining that the second control signal carrying the information for adjusting the current equipment state to be the active equipment is a second potential signal, determining a second intermediate signal for indicating that power-on operation needs to be performed, and determining that the potential of the second intermediate signal is a second potential.

Specifically, since the second control signal is transmitted to the standby device through the pull-down resistor, the second control signal does not need to be filtered before the second intermediate signal is determined according to the second control signal, so that the signal processing steps are simplified, the standby device is favorably and quickly upgraded, and the normal operation of the local-side device is ensured.

Specifically, in order to upgrade the standby device to the active device, in the handover control method provided in the embodiment of the present invention, according to the determined second intermediate signal indicating that the power-on operation needs to be performed, adjusting the current device state to the active device may specifically include:

Based on the same inventive concept, embodiments of the present invention further provide a standby device, and since the principle of the standby device is similar to that of the foregoing switching control method for a main device and a standby device on one side of the standby device, reference may be made to the above switching control method for specific implementation of the standby device, and repeated details are omitted.

Specifically, as shown in fig. 8, the standby device provided in the embodiment of the present invention may include: a determination unit 801, a first adjustment unit 802, a second adjustment unit 803, a pull-down unit 804, an active power unit 805, and an auxiliary power unit 806; wherein the content of the first and second substances,

a determining unit 801, configured to determine whether a first control signal carrying information for controlling power on or power off and sent by a master device is received;

a first adjusting unit 802, configured to, when it is determined that a first control signal carrying information for controlling power-on or power-off sent by the active device is received, control a current working state according to the received first control signal and a real-time active-standby arbitration result with the active device by using the auxiliary power supply unit 806;

a second adjusting unit 803, configured to, when it is determined that the first control signal carrying information for controlling power-on or power-off sent by the active device is not received, adjust the current device state to be the active device by using the auxiliary power unit 806 and the pull-down unit 804;

a pull-down unit 804, configured to determine a second control signal carrying information for adjusting a current device state to be a master device;

an active power supply unit 805 configured to provide power to the determining unit 801, the first adjusting unit 802, and the second adjusting unit 803;

an auxiliary power supply unit 806 is used for supplying power to the first adjusting unit 802 and the second adjusting unit 803.

The standby equipment provided by the embodiment of the invention can control the standby equipment to be powered on or powered off through the main equipment, and then the main equipment is used for controlling the standby equipment to be thoroughly reset; and when the control signal sent by the main device is not received, the standby device can be automatically upgraded to the main device to complete the work through the preset auxiliary power supply unit and the pull-down unit, so that the problem that the local-side device cannot work normally due to the fault of the main device is avoided, and the smoothness of the communication network is effectively ensured.

In specific implementation, in the above standby device provided in the embodiment of the present invention, as shown in fig. 9 and fig. 10, in order to avoid complexity of the drawings, the main power supply unit 805 and the auxiliary power supply unit 806 are not shown in fig. 9; the first adjusting unit 802 may specifically include: the power-off control circuit 802-1, the first power-on control circuit 802-2 and the first adjusting control circuit 802-3; wherein the content of the first and second substances,

the power-off control circuit 802-1 is configured to determine, according to a real-time active-standby arbitration result with the active device and a received first control signal, a first intermediate signal used for indicating whether power-off operation is required;

a first power-on control circuit 802-2, configured to determine, according to the received first control signal, a second intermediate signal indicating whether a power-on operation is required, by using the power provided by the auxiliary power unit 806;

the first adjusting control circuit 802-3 is configured to control a current operating state according to the determined first intermediate signal and the determined second intermediate signal by using the power provided by the auxiliary power unit 806.

Specifically, in the standby device provided in the embodiment of the present invention, the power-down control circuit 802-1 is specifically configured to determine a current device state of the standby device according to a real-time active-standby arbitration result with the active device; when the current equipment state is determined to be the standby equipment, determining a first intermediate signal for indicating that power-off operation is not needed, and determining the first intermediate potential to be a preset second potential; or, determining whether the first control signal is a preset first potential signal; when the first control signal is determined to be a preset first potential signal, determining a first intermediate signal used for indicating that power-off operation is required, and determining the potential of the first intermediate signal to be a first potential; when the first control signal is determined not to be the preset first potential signal, a first intermediate signal indicating that power-down operation is not required is determined, and the potential of the first intermediate signal is determined to be in a high-resistance state.

Further, in the standby device provided in the embodiment of the present invention, the power-down control circuit 802-1 is further specifically configured to perform filtering processing on the first control signal.

Specifically, in the above standby device provided in the embodiment of the present invention, the first power-on control circuit 802-2 is specifically configured to determine whether the first control signal is a preset second potential signal; when the first control signal is determined not to be the preset second potential signal, determining a second intermediate signal used for indicating that no power-on operation is needed, and determining that the potential of the second intermediate signal is in a high-resistance state; when the first control signal is determined to be the preset second potential signal, determining whether the first control signal is a stable signal; when the first control signal is determined not to be a stable signal, determining a second intermediate signal which is used for indicating that no power-on operation is needed, and determining the potential of the second intermediate signal to be in a high-impedance state; when the first control signal is determined to be a stable signal, a second intermediate signal used for indicating that power-on operation is needed is determined, and the potential of the second intermediate signal is determined to be a second potential.

Specifically, in the standby device provided in the embodiment of the present invention, as shown in fig. 9 and 10, the first adjustment control circuit 802-3 may specifically include: a first enable control sub-circuit 802-3a and a first state adjustment sub-circuit 802-3 b; wherein the content of the first and second substances,

a first enable control sub-circuit 802-3a, configured to determine an enable signal indicating that a power-on operation is required when it is determined that the potential of the first intermediate signal is in a high-impedance state and the potential of the second intermediate signal is in a second potential, or when it is determined that the potential of the first intermediate signal is in the second potential and the potential of the second intermediate signal is in the high-impedance state; when the potential of the first intermediate signal is determined to be a first potential and the potential of the second intermediate signal is in a high-resistance state, determining a non-enabling signal for indicating that power-down operation is required;

the first state adjustment sub-circuit 802-3b is configured to control a current working state to be a power-on state according to the determined enable signal indicating that a power-on operation is required; and controlling the current working state to be a power-down state according to the determined non-enabling signal for indicating that the power-down operation is required.

In a specific implementation, in the standby device provided in the embodiment of the present invention, as shown in fig. 9, the second adjusting unit 803 may specifically include: a second power-on control circuit 803-1 and a second regulation control circuit 803-2; wherein the content of the first and second substances,

the second power-on control circuit 803-1 is configured to determine, by using the power provided by the auxiliary power unit 806, a second intermediate signal indicating that a power-on operation needs to be performed according to the second control signal carrying the information for adjusting the current device state to be the active device and determined by the pull-down unit 804;

and a second adjustment control circuit 803-2, configured to adjust the current device state to be the active device according to the determined second intermediate signal indicating that the power-on operation needs to be performed, by using the power provided by the auxiliary power unit 806.

Specifically, in the standby device provided in the embodiment of the present invention, the second power-on control circuit 803-1 is specifically configured to determine whether a second control signal carrying information for adjusting the current device state to be the active device is a second potential signal; and when determining that the second control signal carrying the information for adjusting the current equipment state to be the active equipment is a second potential signal, determining a second intermediate signal for indicating that power-on operation needs to be performed, and determining that the potential of the second intermediate signal is a second potential.

Specifically, in the standby device provided in the embodiment of the present invention, as shown in fig. 9, the second adjustment control circuit 803-2 may specifically include: a second enable control sub-circuit 803-2a and a second state adjustment sub-circuit 803-2 b; wherein the content of the first and second substances,

a second enable control sub-circuit 803-2a for determining an enable signal indicating that a power-on operation is required when the potential of the second intermediate signal is determined to be the second potential;

and the second state adjusting sub-circuit 803-2b is configured to adjust the current working state to be the power-on state according to the determined enable signal indicating that the power-on operation needs to be performed, so that the adjusted device state is the active device.

Specifically, in the standby device provided in the embodiment of the present invention, the first power-on control circuit and the second power-on control circuit are the same circuit formed by logic devices; the first enabling control sub-circuit and the second enabling control sub-circuit are the same sub-circuit formed by a logic device and an optical coupling chip; the first state adjustment sub-circuit and the second state adjustment sub-circuit are the same sub-circuit. Thus, as can be seen in FIG. 10, only the first power-on control circuit 802-2, the first enable control sub-circuit 802-3a, and the first state adjustment sub-circuit 802-3b are used to form an important component of the standby device.

Of course, the specific structure of the first power-on control circuit 802-2 may be a logic device, and of course, other structures may also be used to implement the function of the first power-on control circuit 802-2, which is not limited herein. Similarly, the specific structure of the first enable control sub-circuit 802-3a may be composed of a logic device and an optocoupler chip, but is not limited thereto, and may also be other structures that can implement the function of the first enable control sub-circuit 802-3 a; similarly, the first state adjustment sub-circuit 802-3b may be a standard power chip, but is not limited thereto, and may be other structures that can implement the functions of the first state adjustment sub-circuit 802-3 b.

Specifically, in the standby device provided in the embodiment of the present invention, as shown in fig. 10, the main power supply unit 805 is specifically configured to provide a main power supply for the first state adjustment sub-circuit 802-3b, so that the first state adjustment sub-circuit 802-3b converts the power supply into a working voltage required by a chip in the standby device, and ensures normal operation of the standby device; the auxiliary power supply unit 806 is specifically configured to provide an auxiliary power supply for the first power-on control circuit 802-2 and the first enable control sub-circuit 802-3a, so as to ensure that when the primary device fails, the auxiliary power supply unit 806 can also power on the standby device, and when the standby device is in a power-off state, the auxiliary power supply unit 806 can normally process a control signal sent by the primary device, so that when the primary device controls the standby device to power on or power off, normal operation of the local device is ensured.

In addition, the power-off control circuit can be an FPGA (field programmable gate array), and the FPGA has more functions, so that the power consumption of the FPGA is larger; the power consumption of the auxiliary power supply is generally small, and the normal work of the FPGA cannot be maintained generally; therefore, in the above-mentioned standby device provided in the embodiment of the present invention, as shown in fig. 10, the first state adjustment sub-circuit 802-3b is further configured to provide power for the power-down control circuit 802-1, instead of using the auxiliary power unit 806 to provide power for the power-down control circuit 802-1, so as to ensure normal operation of the FPGA, and further ensure normal operation of the standby device.

The following describes in detail the working process of the above backup device provided by the embodiment of the present invention with reference to a specific embodiment.

Example two: with reference to the schematic structural diagram of the standby device shown in fig. 10 and the flowchart of the method shown in fig. 11, the foregoing switching control method provided in the embodiment of the present invention is described by taking an example in which the active device sends the first control signal to the standby device.

S1101, receiving a first control signal sent by the main equipment by the power-down control circuit, and performing filtering processing;

s1102, the power-down control circuit determines a first intermediate signal according to a real-time main/standby arbitration result of the main device and a received first control signal;

s1103, the first power-on control circuit determines a second intermediate signal according to the received first control signal;

s1104, the first enabling control sub-circuit determines whether power-on operation is required at present according to the received first intermediate signal and the second intermediate signal; if yes, go to step S1105; if not, go to step S1107;

s1105, the first enabling control sub-circuit determines an enabling signal for indicating that power-on operation is needed;

s1106, the first state adjusting sub-circuit controls the current working state to be a power-on state according to the determined enabling signal; ending the flow;

s1107, the first enabling control sub-circuit determines a non-enabling signal which indicates that power-down operation is required;

and S1108, the first state adjusting sub-circuit controls the current working state to be a power-off state according to the determined enabling signal.

Example three: with reference to the schematic structural diagram of the standby device shown in fig. 10 and the flowchart of the method shown in fig. 12, the above switching control method provided in the embodiment of the present invention is described by taking an example that the active device fails and cannot send the first control signal to the standby device.

S1201, determining a second control signal carrying information for adjusting the current equipment state by a pull-down unit;

s1202, the first power-on control circuit determines a second intermediate signal according to the second control signal;

s1203, determining an enabling signal for indicating that power-on operation is needed by the first enabling control sub-circuit according to the second intermediate signal;

and S1204, the first state adjustment sub-circuit controls the current working state to be a power-on state according to the determined enabling signal.

Based on the same inventive concept, an embodiment of the present invention further provides a switching control system for a host/standby device, as shown in fig. 13, where the switching control system may include: the main device 1, the standby device 4, the first power panel 10, the second power panel 20, and the network manager 30 electrically connected to the main device 1 and the standby device 4, respectively; wherein the content of the first and second substances,

the structure of the main equipment 1 is completely the same as that of the standby equipment 4;

the first power panel 10 and/or the second power panel 20 are used for providing power for the main device 1 and the standby device 4;

and the network manager 30 is configured to send the received switching signal for controlling the standby device 4 to power on or power off, which is sent remotely, to the main device 1.

Specifically, in the above switching control system provided in the embodiment of the present invention, as shown in fig. 13, each of the active device 1 and the standby device 4 includes: when the first state adjustment sub-circuit 802-3b controls the device to which the chip 40 belongs to be powered on, the first state adjustment sub-circuit 802-3b outputs the required working voltage to the chip 40, so that the chip 40 can normally work, and the processing of services is realized; when the first state adjustment sub-circuit 802-3b controls the device to which it belongs to power down, the first state adjustment sub-circuit 802-3b does not output the required working voltage to the chip 40, so that the chip 40 cannot work normally, and the standby device 4 is powered on or powered off by switching the control system.

In specific implementation, in the above switching control system provided in the embodiment of the present invention, as shown in fig. 13, each of the active device 1 and the standby device 4 at least includes: a CPU unit 401, a main/standby arbitration unit 402, an output control unit 403, a first power-on control circuit 802-2, a power-off control circuit 802-1, a first enable control sub-circuit 802-3a, a first state adjustment sub-circuit 802-3b, a pull-down unit 804, a main power supply unit and an auxiliary power supply unit 806; it should be noted that, since the active power supply unit in the active device is the same as the active power supply unit in the standby device, and there is no difference, both 404 and 805 represent the active power supply unit; when the equipment is standby equipment, the first power-on control circuit, the power-off control circuit, the first enabling control sub-circuit, the first state adjusting sub-circuit, the main power supply unit and the auxiliary power supply unit can normally work, and the CPU unit and the output control unit do not work; when the device is a main device, only the CPU unit, the output control unit and the main power supply unit can normally work to control the working state of the device; in addition, whether the main device 1 works or the standby device 4 works, the main/standby arbitration units in the two devices always work so as to determine a main/standby arbitration result in real time; in addition, because the structures of the active device 1 and the standby device 4 are completely the same, the mutual active-standby relationship between the two devices can be ensured, and the working state of the standby device 4 is controlled by the active device 1, so that the local side device can work normally.

It should be noted that, in fig. 13, only the structures of the active device 1 and the standby device 4 are completely the same, that is, the structures have the same structure, and the connection relationships between the structures are completely the same, and the connection relationships between the active device 1 and the standby device 4, the first power supply panel 10, the second power supply panel 20, and the network management 30 are also completely the same, and the positions of the structures in the drawing do not indicate the actual positions, but only the connection relationships between the structures are clearly illustrated.

Specifically, in the above switching control system provided in the embodiment of the present invention, as shown in fig. 13, the first power panel 10 and/or the second power panel 20 are specifically configured to provide power for the main power supply unit and the auxiliary power supply unit in the main device 1, and provide power for the main power supply unit 805 and the auxiliary power supply unit 806 in the standby device 4; so as to ensure the normal operation of the main device 1 and the standby device 4, and when one power panel has a problem, the other power panel can still ensure the normal operation of the local side device, thereby ensuring the smoothness of network communication.

It should be further noted that, in the standby device in the above switching control system provided in the embodiment of the present invention, there is no need to set a determination unit, and when the active device 1 sends the first control signal to the standby device 4, the first power-on control circuit 802-2 and the first power-off control circuit 802-1 will automatically receive the first control signal and correspondingly process the first control signal; when the active device 1 cannot send the first control signal to the standby device 4, since the pull-down unit 804 is connected to the signal line between the active device and the standby device, and the second control signal can be automatically transmitted to the first power-on control circuit 802-2 through the pull-down unit 804, the standby device 4 receives the signal regardless of whether the active device 1 sends the signal to the standby device 4, so as to control the operating state, and therefore, the standby device 4 may not need to be provided with a determination unit, as shown in fig. 13.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.

The embodiment of the invention provides a switching control method of a main device and a standby device, and a switching control system and a switching control device thereof, wherein the main device can control the power-on or power-off of the standby device through the setting of the switching control method of the main device and the standby device, so that the main device can control the thorough reset of the standby device; in addition, the main-standby relationship between the two devices can be determined in real time through the real-time main-standby arbitration result between the main device and the standby device, and then the control of the other device is realized through the respective main-standby states, so that the normal work of the local side device is ensured; in addition, when the standby device does not receive the control signal sent by the main device, the standby device can be automatically upgraded to the main device through the preset auxiliary power supply unit and the pull-down unit to complete the work, so that the problem that the local-side device cannot work normally due to the fault of the main device is avoided, and the smoothness of a communication network is effectively ensured.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A method for controlling switching between a main device and a standby device is characterized by comprising the following steps:

when the current equipment state of the equipment is determined to be the main equipment, sending a first control signal carrying information for controlling the standby equipment to be powered on or powered off to the standby equipment according to the received switching signal, so that:

when the standby equipment determines to receive the first control signal, the standby equipment controls the current working state according to the received first control signal and a real-time main/standby arbitration result of the main equipment by using a preset auxiliary power supply unit; or when the standby equipment determines that the first control signal is not received, adjusting the current equipment state to be the main equipment by using a preset auxiliary power supply unit and a pull-down unit; and the pull-down unit is used for determining a second control signal carrying information for adjusting the current equipment state to be the main equipment.

2. The switching control method according to claim 1, wherein the determining whether the current device state of the device itself is the active device according to the real-time active/standby arbitration result with the standby device specifically includes:

3. The switching control method according to claim 1, wherein the real-time master/slave arbitration mechanism with the backup device is: and performing real-time automatic negotiation processing according to a first state signal group which is sent to a main/standby arbitration unit in the standby equipment by the main/standby arbitration unit in the standby equipment and carries a current in-place indication signal, a main/standby state signal and a working indication signal, and a second state signal group which is sent to the main/standby arbitration unit in the standby equipment and carries the current in-place indication signal, the main/standby state signal and the working indication signal of the standby equipment by the main/standby arbitration unit in the standby equipment, and determining respective equipment states.

4. The switching control method according to claim 3, wherein before the main/standby arbitration unit in itself sends the first status signal group carrying the current on-site indication signal, the main/standby status signal, and the working indication signal to the main/standby arbitration unit in the standby device, the main/standby arbitration unit in itself performs logic and processing on the first indication signal for indicating the working status of the CPU of its own central processing unit and the second indication signal for indicating the working status of each working chip of itself, and generates the current working indication signal of itself;

5. The handover control method according to claim 1, wherein the sending, to the standby device according to the received handover signal, a first control signal carrying information for controlling power on or power off of the standby device specifically includes:

and sending a first control signal carrying information for controlling the standby equipment to be powered on or powered off to the standby equipment according to the determined mark.

6. A method for controlling switching between a main device and a standby device is characterized by comprising the following steps:

7. The switching control method according to claim 6, wherein the controlling a current operating state by using a preset auxiliary power supply unit according to the received first control signal and a real-time active-standby arbitration result with the active device specifically comprises:

8. The switching control method according to claim 7, wherein the determining, according to the real-time active-standby arbitration result with the active device and the received first control signal, a first intermediate signal indicating whether a power-down operation is required specifically includes:

when the current equipment state is determined to be standby equipment, determining a first intermediate signal for indicating that power-off operation is not needed, and determining the first intermediate potential to be a preset second potential; or, determining whether the first control signal is a preset first potential signal;

9. The switching control method according to claim 8, before determining the current device state according to the real-time active/standby arbitration result with the active device, further comprising:

and carrying out filtering processing on the first control signal.

10. The handover control method according to claim 8, wherein the determining, according to the received first control signal, a second intermediate signal indicating whether a power-on operation is required includes:

11. The handover control method according to claim 10, wherein the controlling the current working state according to the determined first intermediate signal and the determined second intermediate signal specifically comprises:

12. The handover control method according to claim 11, wherein the adjusting the current device state to be the active device by using the preset auxiliary power unit and the pull-down unit specifically comprises:

13. The handover control method according to claim 12, wherein determining, according to the second control signal carrying the information for adjusting the current device state to the active device determined by the pull-down unit, a second intermediate signal indicating that a power-on operation is required includes:

14. The handover control method according to claim 12, wherein the adjusting the current device state to be the active device according to the determined second intermediate signal indicating that the power-on operation is required includes:

15. A host device, comprising: the system comprises a Central Processing Unit (CPU) unit, a main and standby arbitration unit, an output control unit and a main power supply unit; wherein the content of the first and second substances,

the output control unit is configured to send a first control signal carrying information for controlling power on or power off of the standby device to the standby device according to the received switching signal when determining that the current device state of the output control unit is the main device, so that the standby device controls a current working state according to the received first control signal and a real-time main/standby arbitration result with the main device by using a preset auxiliary power supply unit when determining that the first control signal is received; or when the standby equipment determines that the first control signal is not received, adjusting the current equipment state to be the main equipment by using a preset auxiliary power supply unit and a pull-down unit; the pull-down unit is used for determining a second control signal carrying information for adjusting the current equipment state to be the main equipment;

16. The active device according to claim 15, wherein the active-standby arbitration unit is specifically configured to determine whether a current in-place indication signal of the active-standby arbitration unit is a preset first potential signal according to a real-time active-standby arbitration result of the standby device; when the current in-place indication signal is determined not to be the preset first potential signal, determining that the current equipment state is the standby equipment; when the current on-site indication signal is determined to be a preset first potential signal, determining whether the current main/standby state signal is a preset second potential signal; when the current main/standby state signal is determined not to be the preset second potential signal, determining that the current equipment state is the standby equipment; when the current main/standby state signal is determined to be a preset second potential signal, determining whether the current working indication signal is the second potential signal; when the current working indication signal is determined not to be the second potential signal, determining that the current equipment state is the standby equipment; and when the current working indication signal is determined to be the second potential signal, determining that the current equipment state is the active equipment.

17. The active device of claim 16, wherein the real-time active-standby arbitration mechanism with the standby device is: and performing real-time automatic negotiation processing according to a first state signal group which is sent to a main/standby arbitration unit in the standby equipment by the main/standby arbitration unit in the standby equipment and carries a current in-place indication signal, a main/standby state signal and a working indication signal, and a second state signal group which is sent to the main/standby arbitration unit in the standby equipment and carries the current in-place indication signal, the main/standby state signal and the working indication signal of the standby equipment by the main/standby arbitration unit in the standby equipment, and determining respective equipment states.

18. The active device according to claim 17, wherein before the active/standby arbitration unit in the standby device sends the first status signal group carrying the current on-site indication signal, the active/standby status signal, and the operation indication signal to the active/standby arbitration unit in the standby device, the active/standby arbitration unit in the standby device performs logic and processing on the first indication signal indicating the operating status of the CPU of the central processing unit and the second indication signal indicating the operating status of each operating chip of the standby device to generate the current operation indication signal of the standby device; before a main/standby arbitration unit in the standby device sends a second state signal set carrying a current in-place indication signal, a main/standby state signal and a working indication signal of the standby device to a main/standby arbitration unit inside the standby device, the main/standby arbitration unit in the standby device performs logic and processing on a third indication signal used for indicating a working state of a CPU in the standby device and a fourth indication signal used for indicating a working state of each working chip in the standby device, and generates the current working indication signal of the standby device.

19. The active device of claim 15, wherein the CPU unit is further configured to determine, according to the received switching signal, a flag in an internal register corresponding to the switching signal;

and the output control unit is specifically configured to send a first control signal carrying information for controlling the standby device to power on or power off to the standby device according to the determined mark.

20. The master device of claim 19, wherein the output control unit is a complex editable logic device or a field-editable gate array.

21. A backup device, comprising: the device comprises a determining unit, a first adjusting unit, a second adjusting unit, a pull-down unit, a main power supply unit and an auxiliary power supply unit; wherein the content of the first and second substances,

the active power supply unit is used for providing power for the determining unit, the first adjusting unit and the second adjusting unit;

22. The standby device according to claim 21, wherein the first adjusting unit specifically includes: the power-off control circuit, the first power-on control circuit and the first adjustment control circuit; wherein the content of the first and second substances,

23. The standby device according to claim 22, wherein the power-down control circuit is specifically configured to determine a current device state of the host device according to a real-time host-standby arbitration result with the host device; when the current equipment state is determined to be the standby equipment, determining a first intermediate signal for indicating that power-off operation is not needed, and determining the first intermediate potential to be a preset second potential; or, determining whether the first control signal is a preset first potential signal; when the first control signal is determined to be a preset first potential signal, determining a first intermediate signal used for indicating that power-off operation is required, and determining the potential of the first intermediate signal to be a first potential; when the first control signal is determined not to be the preset first potential signal, a first intermediate signal used for indicating that power-down operation is not needed is determined, and the potential of the first intermediate signal is determined to be in a high-resistance state.

24. The backup device of claim 23, wherein said power down control circuit is further configured to filter said first control signal.

25. The standby device of claim 23, wherein the first power-on control circuit is specifically configured to determine whether the first control signal is a preset second potential signal; when the first control signal is determined not to be a preset second potential signal, determining a second intermediate signal used for indicating that no power-on operation is needed, and determining the potential of the second intermediate signal to be in the high-resistance state; when the first control signal is determined to be a preset second potential signal, determining whether the first control signal is a stable signal; when the first control signal is determined not to be a stable signal, determining a second intermediate signal which is used for indicating that no power-on operation is needed, and determining the potential of the second intermediate signal to be in the high-resistance state; when the first control signal is determined to be a stable signal, a second intermediate signal used for indicating that power-on operation is needed is determined, and the potential of the second intermediate signal is determined to be the second potential.

26. The standby device of claim 25, wherein the first regulation control circuit specifically comprises: a first enable control sub-circuit and a first state adjustment sub-circuit; wherein the content of the first and second substances,

27. The standby device according to claim 26, wherein the second adjusting unit specifically includes: a second power-on control circuit and a second regulation control circuit; wherein the content of the first and second substances,

28. The standby device of claim 27, wherein the second power-on control circuit is specifically configured to determine whether the second control signal carrying information for adjusting a current device state to be the active device is the second potential signal; when the second control signal carrying the information for adjusting the current device state to be the active device is determined to be the second potential signal, determining a second intermediate signal used for indicating that power-on operation needs to be performed, and determining the potential of the second intermediate signal to be the second potential.

29. The standby device of claim 28, wherein the second regulation control circuit comprises: a second enable control sub-circuit and a second state adjustment sub-circuit; wherein the content of the first and second substances,

30. The standby device of claim 29 wherein said first power-on control circuit and said second power-on control circuit are the same circuit of logic devices;

31. The standby device of claim 30 wherein said active power supply unit is specifically configured to provide active power for said first state adjustment subcircuit;

32. The backup device of claim 30, wherein said first state adjustment subcircuit is further configured to provide power to said power down control circuit.

33. A switching control system of a main device and a standby device, comprising: the active device according to any one of claims 15 to 20, the standby device according to any one of claims 21 to 32, the first power supply panel, the second power supply panel, and a network manager electrically connected to the active device and the standby device, respectively; wherein the content of the first and second substances,

34. The switching control system of claim 33, wherein the active device and the standby device each comprise at least: the device comprises a Central Processing Unit (CPU) unit, a main and standby arbitration unit, an output control unit, a first power-on control circuit, a power-off control circuit, a first enabling control sub-circuit, a first state adjusting sub-circuit, a pull-down unit, a main power supply unit and an auxiliary power supply unit.

35. The handover control system of claim 34, wherein the first power strip and/or the second power strip are specifically configured to provide power for the active power supply unit and the auxiliary power supply unit in the active device, and to provide power for the active power supply unit and the auxiliary power supply unit in the standby device.