Single board processing method, single board, equipment and system

Abstract

The invention discloses a single board processing method, a single board, equipment and a system, and belongs to the field of communication. The first single board comprises an interface, a switching unit and a power switch unit; the switching unit is used for disconnecting the electrical connection between the interface and the power switch unit; the power switch unit is used for connecting the electric connection between the power switch unit and the power panel when the electric connection is disconnected, so that the power panel provides input voltage for the first single board; the interface is used for receiving or sending information interacted with the second single board when the first single board has voltage input; the switching unit is also used for communicating electric connection between the interface and the power switch unit; the interface is also used for sending a disconnection indication signal to the power switch unit after receiving the disconnection indication signal sent by the second single board; and the power switch unit is also used for disconnecting the electric connection between the power switch unit and the power panel based on the disconnection indication signal. The cost can be reduced, and the integration level of equipment can be improved.

Description

Technical Field

[0001] This application relates to the field of communications, and particularly to a processing method, a single board, a device, and a system for a single board. Background Art

[0002] In a frame device, a device includes multiple single boards. The multiple single boards may include a power board, a main control board, and an interface board. The interface board may include a first interface, a second interface, and a power switch unit. The main control board is connected to the first interface and the main control board is also connected to the second interface. The second interface is also connected to the power switch unit, and the power switch unit is also connected to the power board.

[0003] The power switch unit is closed to enable the power board to input voltage to the interface board. When there is voltage input, the interface board performs information interaction with the main control board through the first interface. When the interface board does not need to work, or when fault isolation is required after the interface board fails, the main control board sends a disconnection instruction signal to the second interface, the second interface sends the disconnection instruction signal to the power switch unit, and the power switch unit disconnects based on the disconnection instruction signal to enable the power board to stop inputting voltage to the interface board, so as to reduce power consumption or isolate the fault.

[0004] The interface board needs to include a first interface and a second interface, which not only increases the cost but also reduces the integration of the device. Summary of the Invention

[0005] This application provides a processing method, a single board, a device, and a system for a single board to reduce costs and improve the integration of the device. The technical solutions are as follows:

[0006] In a first aspect, this application provides a first single board, including: an interface, a switching unit, and a power switch unit; the interface is used to connect to a second single board and is also used to connect to the switching unit. The switching unit is used to disconnect the electrical connection between the interface and the power switch unit. The power switch unit is used to connect the electrical connection between the power switch unit and the power board when the electrical connection is disconnected, so that the power board provides input voltage to the first single board. The interface is also used to receive or send information for interaction with the second single board when there is voltage input to the first single board. The switching unit is also used to connect the electrical connection between the interface and the power switch unit. The interface is also used to send the disconnection instruction signal received from the second single board to the power switch unit after receiving the disconnection instruction signal, and the disconnection instruction signal is used to indicate disconnecting the electrical connection between the power switch unit and the power board. The power switch unit is also used to disconnect the electrical connection between the power switch unit and the power board based on the disconnection instruction signal.

[0007] Since the electrical connection between the interface and the power switch unit can be disconnected through the switching unit, the power switch unit connects the electrical connection between the power switch unit and the power board, and then the power board provides an input voltage to the first single board. The first single board can interact information with the second single board through this interface. Or, the electrical connection between the interface and the power switch unit can be connected through the switching unit. In this way, the second single board can send a disconnection indication signal to the interface, the interface sends this disconnection indication signal to the power switch unit, and the power switch unit disconnects the electrical connection between the power switch unit and the power board based on this disconnection indication signal. In this way, by setting an interface on the first single board, the information interaction between the first single board and the second single board can be completed, and the power switch control unit on the first single board can also be controlled by the second single board, thereby reducing the hardware cost and improving the integration of the device.

[0008] In a possible implementation, the interface is further configured to send the connection indication signal to the power switch unit after receiving the connection indication signal sent by the second single board. The connection indication signal is used to indicate connecting the electrical connection between the power switch unit and the power board. The power switch unit is further configured to connect the electrical connection between the power switch unit and the power board based on this connection indication signal, so that the power board provides an input voltage to the first single board. In this way, the first single board can be started to ensure that the first single board can work properly.

[0009] In another possible implementation, the switching unit is a switch, and the first single board further includes a processing unit, and the processing unit is also connected to the switch. The processing unit is configured to control the switch to disconnect to disconnect the electrical connection between the interface and the power switch unit, or control the switch to close to connect the electrical connection between the interface and the power switch unit.

[0010] In another possible implementation, the switch is a relay, the processing unit is connected to the control end of the relay, the input end of the relay is connected to the interface, and the output end of the relay is connected to the power switch unit. Thereby enriching the implementation manner of the switching unit.

[0011] In another possible implementation, the switch is a metal oxide semiconductor MOS transistor, the processing unit is connected to the gate of the MOS transistor, the source of the MOS transistor is connected to the interface, and the drain of the MOS transistor is connected to the power switch unit. Thereby enriching the implementation manner of the switching unit.

[0012] In another possible implementation, the switch is a triode, the processing unit is connected to the base of the triode, the emitter of the triode is connected to the interface, and the collector of the triode is connected to the power switch unit. Thereby enriching the implementation manner of the switching unit.

[0013] In another possible implementation, the first single board is an interface board and the second single board is a main control board.

[0014] In another possible implementation, the processing unit is a monitoring unit on the first single board, and the monitoring unit is used to monitor the first single board.

[0015] In another possible implementation, the information includes one or more of the following: the status information of the first single board or the status information of the second single board.

[0016] In a second aspect, the present application provides a processing method for a single board. The single board is the first single board, and the first single board includes: an interface, a switching unit, and a power switch unit. In the method, the electrical connection between the interface and the power switch unit is disconnected. When the electrical connection is disconnected, the electrical connection between the power switch unit and the power supply board is connected, so that the power supply board provides an input voltage to the first single board. When there is voltage input to the first single board, information for interacting with the second single board is received or sent through the interface. The electrical connection between the interface and the power switch unit is connected. After receiving a disconnection indication signal sent by the second single board through the interface, the electrical connection between the power switch unit and the power supply board is disconnected.

[0017] Since the electrical connection between the interface and the power switch unit can be disconnected, the electrical connection between the power switch unit and the power supply board can be connected, and then the power supply board can provide an input voltage to the first single board, so that information can be interacted with the second single board through this interface. Or, the electrical connection between the interface and the power switch unit can be connected, so that the second single board can send a disconnection indication signal to the interface. After receiving the disconnection indication signal through the interface, the electrical connection between the power switch unit and the power supply board is disconnected. In this way, by setting an interface on the first single board, the information interaction between the first single board and the second single board can be completed, and the power switch control unit on the first single board can also be controlled by the second single board, thereby reducing the hardware cost and improving the integration degree of the device.

[0018] In a possible implementation, a disconnection indication signal is sent to the power switch unit, and the disconnection indication signal is used to indicate disconnecting the electrical connection between the power switch unit and the power supply board, so that the power switch unit disconnects the electrical connection between the power switch unit and the power supply board based on the disconnection indication signal.

[0019] In another possible implementation, after receiving a connection indication signal sent by the second single board through the interface, the electrical connection between the power switch unit and the power supply board is connected, so that the power supply board provides an input voltage to the first single board. This can start the first single board and ensure that the first single board can work normally.

[0020] In another possible implementation, the switching unit is a switch, and the switch is controlled to disconnect to disconnect the electrical connection between the interface and the power switch unit, or the switch is controlled to close to connect the electrical connection between the interface and the power switch unit.

[0021] In another possible implementation, the first single board further includes a processing unit for controlling the switch to be turned off or on. The switch is a relay, the processing unit is connected to the control end of the relay, the input end of the relay is connected to the interface, and the output end of the relay is connected to the power switch unit. Thus, the implementation manners of the switching unit are enriched.

[0022] In another possible implementation, the switch is a metal oxide semiconductor (MOS) transistor, the processing unit is connected to the gate of the MOS transistor, the source of the MOS transistor is connected to the interface, and the drain of the MOS transistor is connected to the power switch unit. Thus, the implementation manners of the switching unit are enriched.

[0023] In another possible implementation, the switch is a triode, the processing unit is connected to the base of the triode, the emitter of the triode is connected to the interface, and the collector of the triode is connected to the power switch unit. Thus, the implementation manners of the switching unit are enriched.

[0024] In another possible implementation, the first single board is an interface board and the second single board is a main control board.

[0025] In another possible implementation, the processing unit is a monitoring unit on the first single board, and the monitoring unit is used to monitor the first single board.

[0026] In another possible implementation, the information exchanged between the processing unit and the second single board includes one or more of the following: the status information of the first single board or the status information of the second single board.

[0027] In a third aspect, the present application provides a device, and the device includes the first single board in the first aspect or any possible implementation manner of the first aspect.

[0028] In a fourth aspect, the present application provides a multi-single board system, and the system includes the first single board, the second single board, and the power supply board in the first aspect or any possible implementation manner of the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic structural diagram of a device provided by an embodiment of the present application;

[0030] Figure 2 is another schematic structural diagram of a device provided by an embodiment of the present application;

[0031] Figure 3 is a schematic structural diagram of a first single board provided by an embodiment of the present application;

[0032] Figure 4 is another schematic structural diagram of a first single board provided by an embodiment of the present application;

[0033] Figure 5It is another schematic diagram of the first single board provided by the embodiment of the present application;

[0034] Figure 6 It is a schematic diagram of a switch structure provided by the embodiment of the present application;

[0035] Figure 7 It is another schematic diagram of a switch structure provided by the embodiment of the present application;

[0036] Figure 8 It is another schematic diagram of a switch structure provided by the embodiment of the present application;

[0037] Figure 9 It is another schematic diagram of the first single board provided by the embodiment of the present application;

[0038] Figure 10 It is another schematic diagram of the first single board provided by the embodiment of the present application;

[0039] Figure 11 It is another schematic diagram of the first single board provided by the embodiment of the present application;

[0040] Figure 12 It is another schematic diagram of the first single board provided by the embodiment of the present application;

[0041] Figure 13 It is a flowchart of a processing method for a single board provided by the embodiment of the present application.

[0042] The following is a detailed introduction to the reference numerals appearing in the embodiments of the present application:

[0043] 10, device; 11, first single board; 12, second single board; 13, power supply board;

[0044] 110, interface; 111, switching unit, switch, relay, MOS transistor, triode; 112, power switch unit;

[0045] 113, processing unit; 114, first voltage conversion unit; 115, functional circuit; 116, second voltage conversion unit;

[0046] 117, third voltage conversion unit; 118, power switch; R, resistor; GND, ground terminal. Detailed Embodiment

[0047] Refer to Figure 1 , the embodiment of the present application provides a device 10, and the device 10 includes multiple single boards.

[0048] For example, the device 10 may include a first single board 11, a second single board 12, and a power supply board 13. The first single board 11 is connected to the second single board 12, and the first single board 11 is also connected to the power supply board 13.

[0049] The power supply board 13 is used to input voltage to the first single board 11.

[0050] The first single board 11 is used to perform one or more of the following operations when there is voltage input: providing service functions or performing information interaction with the second single board 12, etc.

[0051] The second single board 12 is used to manage the first single board 11 and / or perform information interaction with the first single board 11, etc.

[0052] The operation of the second single board 12 managing the first single board 11 can be:

[0053] The second single board 12 can control the first single board 11 to turn on or off, etc. For example, the second single board 12 can control the first single board 11 to receive the voltage input by the power supply board 13 to turn on the first single board 11; and / or, control the first single board 11 to stop receiving the voltage input by the power supply board 13 to turn off the first single board 11.

[0054] In some embodiments, when the first single board 11 does not need to continue providing the service function, the second single board 12 can control the first single board 11 to stop receiving the voltage input by the power supply board 13 to reduce power consumption. When the first single board 11 is required to provide the service function, the second single board 12 can control the first single board 11 to receive the voltage input by the power supply board 13, so that the first single board 11 provides the service function when there is voltage input.

[0055] In some embodiments, when the first single board 11 fails, the second single board 12 can control the first single board 11 to stop receiving the voltage input by the power supply board 13, so as to isolate the first single board 11 to achieve fault isolation.

[0056] In some embodiments, the device 10 may include one first single board 11. Or, refer to Figure 2 , the device 10 may include multiple first single boards 11.

[0057] For each of the multiple first single boards 11, the first single board 11 is connected to the second single board 12, and the first single board 11 is also connected to the power supply board 13. The power supply board 13 inputs the voltage to the first single board 11, and the second single board 12 can manage the first single board 11 and / or perform information interaction with the first single board 11, etc.

[0058] In some embodiments, the device 10 may include one second single board 12. Or, the device 10 may include multiple second single boards 12, and each second single board 12 may be connected to at least one first single board 11.

[0059] For each second single board 12 and for at least one first single board 11 connected to the second single board 12, the second single board 12 is used to manage the at least one first single board 11 and / or to perform information interaction with the at least one first single board 11, etc.

[0060] The at least one first single board 11 connected to each second single board 12 may be the same, or the at least one first single board 11 connected to each second single board 12 may be different, or some of the at least one first single board 11 connected to each second single board 12 may be the same.

[0061] In some embodiments, when the at least one first single board 11 connected to each second single board 12 is the same, one of the multiple second single boards 12 is the primary one, and the other second single boards 12 are the standby ones. Among them, when the primary second single board 12 is normal, the primary second single board 12 manages the at least one first single board 11 and / or performs information interaction with the at least one first single board 11. When the primary second single board 12 fails, the standby second single board 12 manages the at least one first single board 11 and / or performs information interaction with the at least one first single board 11.

[0062] In some embodiments, the device 10 may be a frame device, etc., the second single board 12 may be a main control board, etc., and the first single board 11 may be an interface board, etc.

[0063] See Figure 3 , the embodiment of the present application provides a first single board 11, and the first single board 11 may be Figure 1 or Figure 2 the first single board 11 in the device 10 shown, including:

[0064] An interface 110, a switching unit 111, and a power switch unit 112;

[0065] The interface 110 is connected to the second single board 12, the interface 110 is also connected to the switching unit 111, the switching unit 111 is also connected to the power switch unit 112, and the power switch unit 112 is also connected to the power supply board 13;

[0066] The switching unit 111 is used to disconnect the electrical connection between the interface 110 and the power switch unit 112;

[0067] The power switch unit 112 is used to connect the electrical connection between the power switch unit 112 and the power supply board 13 when the electrical connection is disconnected, so that the power supply board 13 inputs voltage to the first single board 11;

[0068] The interface 110 is used to receive or send information interacting with the second single board 12 when the first single board 11 has voltage input;

[0069] The switching unit 111 is further configured to connect the electrical connection between the interface 110 and the power switch unit 112;

[0070] The interface 110 is further configured to, after receiving the disconnection indication signal sent by the second single board 12 and when the electrical connection is connected, send the disconnection indication signal to the power switch unit 112, and the disconnection indication signal is used to indicate disconnecting the electrical connection between the power switch unit 112 and the power supply board 13;

[0071] The power switch unit 112 is further configured to disconnect the electrical connection between the power switch unit 112 and the power supply board 13 based on the disconnection indication signal.

[0072] In some embodiments, the input end of the power switch unit 112 is connected to the output end of the power supply board 13, the output end of the power switch unit 112 is connected to at least one device (such as Figure 4 the processing unit 113) in the first single board 11, the control end of the power switch unit 112 is connected to the output end of the switching unit 111, and the input end of the switching unit 111 is connected to the interface 110.

[0073] In some embodiments, the input end of the power switch unit 112 is connected to the output end of the power supply board 13 through a power bus.

[0074] In some embodiments, the switching unit 111 can disconnect the electrical connection between the interface 110 and the control end of the power switch unit 112, so that there is no signal input to the control end of the power switch unit 112. When there is no signal input to the control end of the power switch unit 112, the power switch unit 112 is in a closed state, connecting the electrical connection between the power switch unit 112 and the power supply board 13, and the voltage from the power supply board 13 can be input into the first single board 11 to realize the voltage input from the power supply board 13 to the first single board 11, that is, to turn on the first single board 11. When the first single board 11 has voltage input, information interaction is performed with the second single board 12 through the interface 110.

[0075] Optionally, when the first single board 11 has voltage input, it sends information to the second single board 12 through the interface 110, and / or receives information sent by the second single board 12 through the interface 110.

[0076] In some embodiments, the switching unit 111 can connect the electrical connection between the interface 110 and the control terminal of the power switch unit 112. The second single board 12 can send a disconnection indication signal to the interface 110, and the interface 110 transmits the disconnection indication signal to the control terminal of the power switch unit 112, and the control terminal of the power switch unit 112 receives the disconnection indication signal. Under the control of the disconnection indication signal, the power switch unit 112 is in an off state, disconnecting the electrical connection between the power switch unit 112 and the power board 13, so as to stop inputting the voltage from the power board 13 into the first single board 11, and the first single board 11 is turned off. When there is no voltage input, the first single board 11 stops information interaction with the second single board 12 through the interface 110.

[0077] The so-called connection of the electrical connection between the power switch unit 112 and the power board 13 means that when the power switch unit 112 is closed, the circuit for transmitting voltage from the power board 13 to the first single board 11 is turned on. The so-called disconnection of the electrical connection between the power switch unit 112 and the power board 13 means that when the power switch unit 112 is off, the circuit for transmitting voltage from the power board 13 to the first single board 11 is disconnected.

[0078] Optionally, after the first single board 11 is turned off, since the switching unit 111 continuously connects the electrical connection between the interface 110 and the control terminal of the power switch unit 112, the second single board 12 continuously sends a disconnection indication signal to the interface 110, and the interface 110 continuously sends the disconnection indication signal to the control terminal of the power switch control unit 112. Under the control of the disconnection indication signal, the power switch unit 112 will continuously be in an off state, so that the first single board 11 remains in a closed state.

[0079] In some embodiments, the disconnection indication signal may be a high-level signal.

[0080] In some embodiments, for the power switch unit 112, when the switching unit 111 disconnects the electrical connection between the interface 110 and the control terminal of the power switch unit 112, no signal is input to the control terminal of the power switch unit 112, and the power switch unit 112 closes, so that the power switch unit 112 is in a closed state and the electrical connection between the power switch unit 112 and the power supply board 13 is connected, thereby inputting the voltage from the power supply board 13 into the first single board 11. When the switching unit 111 connects the electrical connection between the interface 110 and the control terminal of the power switch unit 112, if the disconnect indication signal is input to the control terminal of the power switch unit 112, the power switch control unit 112 disconnects, so that the power switch unit 112 is in an open state and the electrical connection between the power switch unit 112 and the power supply board 13 is disconnected, thereby stopping the input of the voltage from the power supply board 13 into the first single board 11 to implement the shutdown of the first single board 11.

[0081] Since the first single board 11 includes a switching unit 111, the switching unit 111 is connected to the interface 110, and the switching unit 111 is also connected to the power switch unit 112. The switching unit 111 can disconnect the electrical connection between the interface 110 and the power switch unit 112, and the power switch unit 112 connects the electrical connection between the power supply board 13 and the power switch unit 112, so that the power supply board 13 inputs voltage to the first single board 11. The first single board 11 performs information interaction with the second single board 12 through the interface 110, thereby ensuring the normal operation of the first single board 11. The switching unit 111 can also connect the electrical connection between the interface 110 and the power switch unit 112, so that the second single board 12 can send a disconnect indication signal to the interface 110, the interface 110 sends the disconnect indication signal to the power switch unit 112, and the power switch unit 112 disconnects the electrical connection between the power supply board 13 and the power switch unit 112 based on the disconnect indication signal to stop inputting the voltage from the power supply board 13 to the first unit 11, so that the power switch unit 112 can be controlled to control the shutdown of the first single board 11. In this way, by setting an interface 110 between the first single board 11 and the second single board 12, the information interaction between the first single board 11 and the second single board 12 can be completed, and the second single board 12 can also control the power switch control unit 112 on the first single board 11, thereby saving hardware costs and improving the integration of the device 10.

[0082] After the first single board 11 is shut down, if the first single board 11 needs to be started, since the switching unit 111 connects the electrical connection between the interface 110 and the control terminal of the power switch unit 112 at this time, the second single board 12 can send a connection indication signal to the interface 110, and the connection indication signal is used to indicate the connection of the electrical connection between the power switch unit 112 and the power supply board 13;

[0083] The interface 110 is further configured to, after receiving the connection indication signal sent by the second single board 12, send the connection indication signal to the power switch unit 112;

[0084] The power switch unit 112 is further configured to, based on the connection indication signal, connect the electrical connection between the power switch unit 112 and the power supply board 13, so that the power supply board 13 inputs voltage to the first single board 11.

[0085] In some embodiments, the control end of the power switch unit 112 receives the connection indication signal sent by the interface 110 from the second single board 12, the power switch unit 112 closes based on the connection indication signal, and the power switch unit 112 is in a closed state to connect the electrical connection between the power switch unit 112 and the power supply board 13 and input the voltage from the power supply board 13 into the first single board 11, realizing the startup of the first single board 11.

[0086] When there is voltage input, the first single board 11 can perform operations such as information interaction with the second single board 12 through the interface 110.

[0087] Optionally, the information interacted between the first single board 11 and the second single board 12 may include one or more of the following: the status information of the first single board 11 or the status information of the second single board 12, etc.

[0088] In some embodiments, referring to Figure 4 , the first single board 11 further includes a processing unit 113. The processing unit 113 is connected to the output end of the power switch unit 112, and the processing unit 113 is further connected to the interface 110. When the power switch unit 112 is in a closed state, the voltage from the power supply board 13 can be input to the processing unit 113.

[0089] The processing unit 113 performs information interaction with the second single board 12 through the interface 110 when there is voltage input. That is, when there is voltage input, the processing unit 113 can send the status information of the first single board 11 to the interface 110, and the interface 110 sends the status information to the second single board 12. And / or, the interface 110 receives the status information of the second single board 12 sent by the second single board 12, sends the status information to the processing unit 113, and the processing unit 113 receives the status information.

[0090] In some embodiments, the second unit 12 may include an interface, and is connected to the interface 110 included in the first single board 11 through this interface. The second single board 12 may include a processing unit. The operation of the processing unit 113 in the first single board 11 performing information interaction with the second single board 12 may be: the processing unit 113 in the first single board 11 performs information interaction with the processing unit in the second single board 12.

[0091] Optionally, the processing unit 113 may be a monitoring unit for monitoring the first single board 11. Optionally, the status information of the first single board 11 may be the monitoring status information obtained by the processing unit 113 querying the first single board 11.

[0092] Optionally, the monitoring status information may be the basic operating conditions of the first single board 11 obtained by the processing unit 113 querying. For example, the monitoring status information includes one or more of the following: voltage, clock, system power-on / off control, temperature monitoring, or fan control, etc.

[0093] Optionally, the processing unit in the second single board 12 may be a monitoring unit for monitoring the second single board 12. Optionally, the status information of the second single board 12 may be the monitoring status information obtained by the processing unit in the second single board 12 querying the second single board 12.

[0094] Optionally, the monitoring status information of the second single board 12 may be the basic operating conditions of the second single board 12 obtained by the processing unit in the second single board 12 querying. For example, the monitoring status information of the second single board 12 includes one or more of the following: voltage, clock, system power-on / off control, temperature monitoring, or fan control, etc.

[0095] In some embodiments, the connection indication signal may be a low-level signal, etc. Of course, if the disconnection indication signal is a low-level signal and the connection indication signal is a high-level signal, it can also achieve controlling the power switch unit 112 to close or disconnect, which will not be elaborated here.

[0096] See Figure 5 , the switching unit 111 may be a switch 111, and the processing unit 113 is also connected to the switch 111;

[0097] The processing unit 113 is used to control the switch 111 to disconnect to disconnect the electrical connection between the interface 110 and the power switch unit 112, or control the switch 111 to close to connect the electrical connection between the interface 110 and the power switch unit 112.

[0098] In some embodiments, the processing unit 113 is also connected to the control end of the switch 111, so the processing unit 113 can control the switch 111 to disconnect or close.

[0099] When the processing unit 113 needs the power switch unit 112 to disconnect, that is, when the power switch unit 112 needs to stop inputting the voltage from the power supply board 13 to the processing unit 113, the processing unit 113 controls the switch 111 to close. Then, the second single board 12 sends a disconnection indication signal to the interface 110, and the interface 110 sends this disconnection indication signal to the power switch unit 112 and the processing unit 113. Since the processing unit 113 knows that the power switch unit 112 needs to be disconnected, even if the processing unit 113 receives this disconnection indication signal and discards the received disconnection indication signal, it will not affect the processing unit 113.

[0100] After the power switch unit 112 disconnects, since the processing unit 113 has no voltage input, the processing unit 113 will not work and will not receive the disconnection indication signal sent by the interface 110.

[0101] In the case where the processing unit 113 has no voltage input, even without the control of the processing unit 113, the switch 111 is in a continuously closed state, that is, continuously connecting the electrical connection between the interface 110 and the voltage switch control unit 112.

[0102] In the case where the processing unit 113 has voltage input, the processing unit 113 can control the switch 111 to disconnect to disconnect the electrical connection between the interface 110 and the power switch unit 112. After the electrical connection between the interface 110 and the power switch unit 112 is disconnected, since there is no signal input to the control end of the power switch unit 112, the power switch unit 112 will remain in a closed state and will continuously input the voltage from the power supply board 13 to the processing unit 113.

[0103] In some embodiments, the interface 110 may be a pin on the first single board 11, and this pin can be connected to the processing unit 113 and the switching unit 111 through signal lines.

[0104] In some embodiments, refer to Figure 6 , the switch 111 is a relay 111. The processing unit 113 is connected to the control end of the relay 111. The input end of the relay 111 is connected to the interface 110, and the output end of the relay 111 is connected to the power switch unit 112.

[0105] Optionally, the default state of the relay 111 is a closed state. When the processing unit 113 needs the relay 111 to disconnect, it can input a high-level signal to the control end of the relay 111, and the relay 111 disconnects under the control of the high-level signal to disconnect the electrical connection between the interface 110 and the power switch unit 112.

[0106] When the processing unit 113 needs the relay 111 to be closed, it can stop inputting signals to the control terminal of the relay 111. After the relay 111 resumes its default state, it automatically closes to connect the electrical connection between the interface 110 and the power switch unit 112. When the power switch unit 112 stops inputting voltage to the processing unit 113, since the processing unit 113 stops working, it will not send signals to the relay 111, and the relay 111 remains in the default state, that is, remains closed, to continuously connect the electrical connection between the interface 110 and the power switch unit 112.

[0107] In some embodiments, referring to Figure 7 , the switch 111 is a metal oxide semiconductor (MOS) transistor 111. The processing unit 113 is connected to the gate of the MOS transistor 111. The source of the MOS transistor 111 is connected to the interface 110, and the drain of the MOS transistor 111 is connected to the power switch unit 112.

[0108] Optionally, referring to Figure 7 , one end of the resistor R is also connected to the gate of the MOS transistor 111, and the other end of the resistor R is connected to the ground terminal GND.

[0109] Optionally, when the processing unit 113 needs the MOS transistor 111 to be disconnected, it can input a high-level signal to the gate of the MOS transistor 111, and the source and drain of the MOS transistor 111 are disconnected to disconnect the electrical connection between the interface 110 and the power switch unit 112.

[0110] When the processing unit 113 needs the MOS transistor 111 to be closed, it can stop inputting signals to the gate of the MOS transistor 111. When the second single board 12 needs to control the power switch unit 112 to be disconnected, it inputs a high-level signal to the interface 110. The interface 110 transmits this high-level signal to the source of the MOS transistor 111, and the voltage between the source and the gate of the MOS transistor 111 increases, so that the source and drain of the MOS transistor 111 are turned on to connect the electrical connection between the interface 110 and the power switch unit 112.

[0111] When the power switch unit 112 stops inputting voltage to the processing unit 113, since the processing unit 113 stops working, it will not send signals to the MOS transistor 111, and the second single board 12 continuously sends high-level signals, and the source and drain of the MOS transistor 111 are continuously turned on to continuously connect the electrical connection between the interface 110 and the power switch unit 112.

[0112] In some embodiments, referring to Figure 8, the switch 111 is a triode 111, the processing unit 113 is connected to the base of the triode 111, the emitter of the triode 111 is connected to the interface 110, and the collector of the triode 111 is connected to the power switch unit 112.

[0113] Optionally, refer to Figure 8 , one end of the resistor R is also connected to the base of the triode 111, and the other end of the resistor R is connected to the ground terminal GND.

[0114] Optionally, when the processing unit 113 needs the triode 111 to be turned off, a high-level signal can be input to the base of the triode 111, and the emitter and collector of the triode 111 are disconnected to disconnect the electrical connection between the interface 110 and the power switch unit 112.

[0115] When the processing unit 113 needs the triode 111 to be turned on, it can stop inputting a signal to the base of the triode 111. When the second single board 12 needs to control the power switch unit 112 to be turned off, a high-level signal is input to the interface 110. The interface 110 transmits the high-level signal to the emitter of the triode 111, and the voltage between the emitter and the base of the triode 111 increases, so that the emitter and collector of the triode 111 are turned on to connect the electrical connection between the interface 110 and the power switch unit 112.

[0116] When the power switch unit 112 stops inputting voltage to the processing unit 113, since the processing unit 113 stops working, it will not send a signal to the triode 111. The second single board 12 continuously sends a high-level signal, and the emitter and collector of the triode 111 are continuously turned on to continuously connect the electrical connection between the interface 110 and the power switch unit 112.

[0117] In some embodiments, refer to Figure 4 , the first single board 11 further includes a first voltage conversion unit 114. The input end of the first voltage conversion unit 114 is connected to the output end of the power switch unit 112, and the output end of the first voltage change unit 114 is connected to the processing unit 113.

[0118] The voltage value of the voltage from the power supply board 13 may not be equal to the voltage value of the voltage required for the processing unit 113 to work, so the power switch unit 112 cannot directly input the voltage from the power supply board 13 to the processing unit 113. Therefore, it is necessary to use the first voltage conversion unit 114 to convert the voltage from the power supply board 13 and input the converted voltage to the processing unit 113.

[0119] For ease of explanation, the voltage input by the power switch unit 112 to the first voltage conversion unit 114 is referred to as the first voltage, that is, the power switch unit 112 inputs the first voltage from the power supply board 13 to the first voltage conversion unit 114. The first voltage conversion unit 114 converts the first voltage into a second voltage, and the voltage value of the second voltage may be equal to the voltage value required for the processing unit 113 to operate, and the second voltage is input to the processing unit 113.

[0120] For example, the first voltage is a voltage of 48 volts, and the second voltage required for the normal operation of the processing unit 113 is a voltage of 3.3 volts. In this way, the first voltage conversion unit 114 is used to convert the 48-volt first voltage into a 3.3-volt second voltage and input the 3.3-volt second voltage to the processing unit 113.

[0121] For another example, the first voltage is a voltage of 48 volts, and the second voltage required for the normal operation of the processing unit 113 is a voltage of 1.2 volts. In this way, the first voltage conversion unit 114 is used to convert the 48-volt first voltage into a 1.2-volt second voltage and input the 1.2-volt second voltage to the processing unit 113.

[0122] Optionally, the first voltage conversion unit 114 may be a device such as a transformer.

[0123] In some embodiments, the first voltage conversion unit 114 can convert the first voltage into a plurality of second voltages with different voltage values and input the plurality of second voltages to the processing unit 113 to meet the requirements of the processing unit 113. For example, the first voltage conversion unit 114 can convert the 48-volt first voltage into a 3.3-volt second voltage, a 1.2-volt second voltage, and a 0.8-volt second voltage, and input the 3.3-volt second voltage, the 1.2-volt second voltage, and the 0.8-volt second voltage to the processing unit 113.

[0124] In some embodiments, refer to Figure 9 , the first single board 11 further includes: a functional circuit 115, and the power switch unit 112 is also connected to the functional circuit 115;

[0125] When the switching unit 111 disconnects the electrical connection between the interface 110 and the power switch unit 112, the power switch unit 112 is further configured to input the voltage from the power supply board 13 to the functional circuit 115, and the functional circuit 115 is configured to implement the service function required by the first single board 11.

[0126] Refer to Figure 9 , the output end of the power switch unit 112 is connected to the input end of the functional circuit 115, the power switch unit 112 inputs a voltage to the functional circuit 115, and the functional circuit 115 implements the service function when there is a voltage input.

[0127] For example, the service function may be a communication interface. That is, when there is a voltage input, the functional circuit 115 provides a communication interface to the user. For instance, the communication interface is an Ethernet interface, and when there is a voltage input, the functional circuit 115 provides an Ethernet interface to the user. Another example is that the communication interface is a passive optical network (PON) interface, and when there is a voltage input, the functional circuit 115 provides a PON interface to the user.

[0128] Also for example, the service function may be a storage function. That is, when there is a voltage input, the functional circuit 115 provides a storage function to the user.

[0129] In some embodiments, referring to Figure 9 , the first single board 11 further includes a second voltage conversion unit 116. The input end of the second voltage conversion unit 116 is connected to the output end of the power switch unit 112, and the output end of the second voltage change unit 116 is connected to the functional circuit 115.

[0130] The voltage value of the voltage from the power supply board 13 may not be equal to the voltage value of the voltage required for the functional circuit 115 to operate. Therefore, the power switch unit 112 cannot directly input the voltage from the power supply board 13 into the functional circuit 115. For this reason, it is necessary to use the second voltage conversion unit 116 to convert the voltage from the power supply board 13 and input the converted voltage into the functional circuit 115.

[0131] For the convenience of description, the voltage input by the power switch unit 112 to the first voltage conversion unit 114 is referred to as the first voltage. That is, the power switch unit 112 inputs the first voltage from the power supply board 13 into the second voltage conversion unit 116. The second voltage conversion unit 116 converts the first voltage into a third voltage. The voltage value of the third voltage may be equal to the voltage value of the voltage required for the functional circuit 115 to operate, and the third voltage is input into the functional circuit 115.

[0132] For example, the first voltage is a voltage of 48 volts, and the third voltage required for the normal operation of the functional circuit 115 is a voltage of 5 volts. In this way, the second voltage conversion unit 116 is used to convert the 48-volt first voltage into a 5-volt third voltage and input the 5-volt third voltage into the processing unit 113.

[0133] Another example is that the first voltage is a voltage of 48 volts, and the third voltage required for the normal operation of the functional circuit 115 is a voltage of 1.8 volts. In this way, the second voltage conversion unit 116 is used to convert the 48-volt first voltage into a 1.8-volt third voltage and input the 1.8-volt third voltage into the processing unit 113.

[0134] Optionally, the second voltage conversion unit 116 may be a device such as a transformer.

[0135] In some embodiments, the second voltage conversion unit 116 may convert the first voltage into multiple third voltages with different voltage values and input the multiple third voltages to the functional circuit 115 to meet the requirements of the functional circuit 115. For example, the second voltage conversion unit 116 may convert the first voltage of 48 volts into a third voltage of 5 volts and a third voltage of 1.8 volts, and input the third voltage of 5 volts and the third voltage of 1.8 volts to the functional circuit 115.

[0136] In some embodiments, referring to Figure 10 , the first single board 11 further includes a third voltage conversion unit 117. The input end of the third voltage conversion unit 117 is connected to the output end of the power switch unit 112, and the output end of the third voltage conversion unit 117 is connected to the input ends of the first voltage conversion unit 114 and the second voltage conversion unit 116.

[0137] The power switch unit 112 inputs the first voltage from the power board 13 into the third voltage conversion unit 117. The third voltage conversion unit 117 converts the first voltage into a fourth voltage and inputs the fourth voltage to the first voltage conversion unit 114 and the second voltage conversion unit 116.

[0138] The first voltage conversion unit 114 converts the fourth voltage into a second voltage and inputs the second voltage to the processing unit 113. The second voltage conversion unit 116 converts the fourth voltage into a third voltage and inputs the third voltage to the functional circuit 115.

[0139] The voltage value of the first voltage may be relatively large. Compared with the voltage value of the first voltage, the voltage values of the second voltage and the third voltage are relatively small. If the first voltage conversion unit 114 is directly used to convert the first voltage into the second voltage, and / or the second voltage conversion unit 116 is directly used to convert the first voltage into the third voltage, it may be necessary to perform multiple power isolation conversions in the first single board 11, which increases the size and circuit complexity of the first single board 11 and results in high costs.

[0140] Therefore, a third voltage conversion unit 117 may be added to the first single board 11. The third voltage conversion unit 117 is used to convert the first voltage into a fourth voltage with a relatively small voltage value and input the fourth voltage to the first voltage conversion unit 114 and the second voltage conversion unit 116. Then, the first voltage conversion unit 114 converts the fourth voltage into the second voltage, and the second voltage conversion unit 116 converts the fourth voltage into the third voltage. In this way, a single power isolation conversion is performed in the first single board 11, which reduces the size of the first single board 11, reduces the circuit complexity, and reduces the cost.

[0141] For example, the first voltage is 48 volts, the fourth voltage is 12 volts, the second voltage required for the normal operation of the processing unit 113 is 3.3 volts, and the third voltage required for the normal operation of the functional circuit 115 is 5 volts. Thus, the third voltage conversion unit 117 is used to convert the 48-volt first voltage into a 12-volt fourth voltage and input the 12-volt fourth voltage to the first voltage conversion unit 114 and the second voltage conversion unit 116. The first voltage conversion unit 114 is used to convert the 12-volt fourth voltage into a 3.3-volt second voltage and input the 3.3-volt second voltage to the processing unit 113. The second voltage conversion unit 116 is used to convert the 12-volt fourth voltage into a 5-volt third voltage and input the 5-volt third voltage to the functional circuit 115.

[0142] For another example, the first voltage is still 48 volts, the fourth voltage is still 12 volts, the second voltage required for the normal operation of the processing unit 113 is 1.2 volts, and the third voltage required for the normal operation of the functional circuit 115 is 1.8 volts. Thus, the third voltage conversion unit 117 is used to convert the 48-volt first voltage into a 12-volt fourth voltage and input the 12-volt fourth voltage to the first voltage conversion unit 114 and the second voltage conversion unit 116. The first voltage conversion unit 114 is used to convert the 12-volt fourth voltage into a 1.2-volt second voltage and input the 1.2-volt second voltage to the processing unit 113. The second voltage conversion unit 116 is used to convert the 12-volt fourth voltage into a 1.8-volt third voltage or input the 1.8-volt third voltage to the functional circuit 115.

[0143] In some embodiments, referring to Figure 11 , the first single board 11 further includes a power switch 118. The output end of the power switch unit 112 is connected to the power switch 118. The power switch 118 is further connected to the input end of the second voltage conversion unit 116. The processing unit 113 is further connected to the control end of the power switch 118.

[0144] The processing unit 113 can send a control signal to the power switch 118 to control the power switch 118 to be turned off or on. When the power switch 118 is turned on, the power switch unit 112 can input the first voltage from the power board 13 to the second voltage conversion unit 116. When the power switch 118 is turned off, the power switch unit 112 can stop inputting the first voltage from the power board 13 to the second voltage conversion unit 116.

[0145] In some embodiments, referring to Figure 12 , the output end of the third voltage conversion unit 117 is connected to the power switch 118. The power switch 118 is further connected to the input end of the second voltage conversion unit 116. The processing unit 113 is further connected to the control end of the power switch 118.

[0146] The processing unit 113 may send a control signal to the power switch 118 to control the power switch 118 to turn off or on. When the power switch 118 is on, the third voltage conversion unit 117 may input a fourth voltage to the second voltage conversion unit 116; in the case where the power switch 118 is off, the third voltage conversion unit 117 may stop inputting the fourth voltage to the second voltage conversion unit 116.

[0147] In the embodiment of the present application, since the switching unit is connected to the interface and the power switch unit, the switching unit can disconnect the electrical connection between the interface and the power switch unit, so that the power switch unit is closed, thereby a voltage from the power supply board can be input to the processing unit. At this time, the processing unit performs information interaction with the second single board through the signal line, thereby ensuring the normal operation of the processing unit, that is, ensuring that the normal operation of the first single board is not affected. The switching unit can connect the electrical connection between the processing unit and the power switch unit. In this way, the second single board can send a disconnection instruction signal to the power switch unit through the interface. The power switch unit receives the disconnection instruction signal and stops inputting the voltage from the power supply board to the processing unit based on the disconnection instruction signal, thereby the power switch unit can be controlled to control the first single board to turn off. Thus, by providing an interface on the first single board and an interface on the second single board, the information interaction between the processing unit and the second single board can be completed, and the power switch control unit on the first single board can also be controlled by the second single board. Therefore, by providing an interface on the first single board and an interface on the second single board, the hardware cost is saved and the integration degree of the device is improved.

[0148] See Figure 13 , the embodiment of the present application provides a processing method 1300 for a single board. The method 1300 is used to manage the first single board, and the first single board includes: an interface, a switching unit, and a power switch unit. The first single board may be Figure 3 , Figure 4 , Figure 5 , Figure 9 , Figure 10 , Figure 11 or Figure 12 the first single board provided in the embodiment shown. The method 1300 includes:

[0149] Step 1301: Disconnect the electrical connection between the interface and the power switch unit.

[0150] Step 1302: Connect the electrical connection between the power switch unit and the power supply board, so that the power supply board provides an input voltage to the first single board.

[0151] Step 1303: Receive or send information for interacting with the second single board through the interface when there is a voltage input to the first single board.

[0152] Step 1304: Connect the electrical connection between the interface and the power switch unit.

[0153] Step 1305: After receiving the disconnection indication signal sent by the second single board through the interface, disconnect the electrical connection between the power switch unit and the power board.

[0154] In some embodiments, a disconnection indication signal is sent to the power switch unit, and the disconnection indication signal is used to indicate disconnecting the electrical connection between the power switch unit and the power board, so that the power switch unit disconnects the electrical connection between the power switch unit and the power board based on the disconnection indication signal.

[0155] In some embodiments, after receiving the connection indication signal from the second single board through the interface, connect the electrical connection between the power switch unit and the power board, so that the power board provides an input voltage to the first single board.

[0156] Optionally, after disconnecting the electrical connection between the power switch unit and the power board, the connection indication signal sent by the second single board can also be received through the interface, and then the connection indication signal is sent to the power switch unit, and the connection indication signal is used to indicate connecting the electrical connection between the power switch unit and the power board;

[0157] Based on the connection indication signal, the power switch unit connects the electrical connection between the power switch unit and the power board, so that the power board provides an input voltage to the first single board.

[0158] In some embodiments, the switching unit is a switch, and the control switch is turned off to disconnect the electrical connection between the interface and the power switch unit, or the control switch is turned on to connect the electrical connection between the interface and the power switch unit.

[0159] In some embodiments, the first single board further includes a processing unit for controlling the switch to be turned off or on. The switch is a relay, the processing unit is connected to the control end of the relay, the input end of the relay is connected to the interface, and the output end of the relay is connected to the power switch unit.

[0160] In some embodiments, the switch is a MOS transistor, the processing unit is connected to the gate of the MOS transistor, the source of the MOS transistor is connected to the interface, and the drain of the MOS transistor is connected to the power switch unit.

[0161] In some embodiments, the switch is a triode, the processing unit is connected to the base of the triode, the emitter of the triode is connected to the interface, and the collector of the triode is connected to the power switch unit.

[0162] In some embodiments, the first single board is an interface board, and the second single board is a main control board.

[0163] In some embodiments, the processing unit is a monitoring unit on the first single board.

[0164] In some embodiments, the information includes one or more of the following: the status information of the first single board or the status information of the second single board.

[0165] In the embodiments of the present application, since the electrical connection between the interface and the power switch unit can be disconnected and the electrical connection between the power board and the power switch unit can be connected, the power board can provide an input voltage to the first single board. When there is voltage input to the first single board, information interaction can be carried out with the second single board through the interface, so as to ensure the normal operation of the first single board. Alternatively, the electrical connection between the interface and the power switch unit can be connected. In this way, the second single board can send a disconnection instruction signal to the power switch unit through the interface, and after receiving the disconnection instruction signal through the interface, disconnect the electrical connection between the voltage switch control unit and the power board, so that the voltage board stops providing the input voltage to the first single board, thereby the power switch unit can be controlled to control the first single board to turn off. Thus, by setting an interface on the first single board, information interaction between the first single board and the second single board can be completed, and the second single board can also control the power switch control unit on the first single board, thereby reducing the hardware cost and improving the integration of the device.

[0166] The embodiments of the present application provide a device, the device includes Figure 3 , Figure 4 , Figure 5 , Figure 9 , Figure 10 , Figure 11 or Figure 12 the first single board provided in the embodiments shown.

[0167] The embodiments of the present application provide a multi-single board system, including Figure 3 , Figure 4 , Figure 5 , Figure 9 , Figure 10 , Figure 11 or Figure 12 the first single board, the second single board and the power board in the embodiments shown.

[0168] Those of ordinary skill in the art can understand that all or part of the steps to implement the above embodiments can be completed by hardware, or can be completed by a program instructing relevant hardware. The program can be stored in a computer-readable storage medium. The above-mentioned storage medium can be a read-only memory, a disk or an optical disc, etc.

[0169] The above are only the optional embodiments of the present application, and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the principle of the present application shall be included in the protection scope of the present application.

Claims

1. A first single board, characterized in that, Including: An interface, a switching unit, and a power switch unit; The interface is used to connect to a second single board, and the interface is also used to connect to the switching unit; The switching unit is used to disconnect the electrical connection between the interface and the power switch unit; The power switch unit is used to connect the electrical connection between the power switch unit and the power board when the electrical connection is disconnected, so that the power board provides an input voltage to the first single board; The interface is also used to receive or send information for interacting with the second single board when there is voltage input to the first single board; The switching unit is also used to connect the electrical connection between the interface and the power switch unit; The interface is also used to send the disconnection indication signal to the power switch unit after receiving the disconnection indication signal from the second single board and when the electrical connection is connected, and the disconnection indication signal is used to indicate disconnecting the electrical connection between the power switch unit and the power board; The power switch unit is also used to disconnect the electrical connection between the power switch unit and the power board based on the disconnection indication signal.

2. The first single board according to claim 1, characterized in that, The interface is also used to send the connection indication signal to the power switch unit after receiving the connection indication signal sent by the second single board, and the connection indication signal is used to indicate connecting the electrical connection between the power switch unit and the power board; The power switch unit is also used to connect the electrical connection between the power switch unit and the power board based on the connection indication signal, so that the power board provides an input voltage to the first single board.

3. The first single board according to claim 1 or 2, characterized in that, The switching unit is a switch, and the first single board further includes a processing unit, and the processing unit is connected to the switch; The processing unit is used to control the switch to be disconnected to disconnect the electrical connection between the interface and the power switch unit, or control the switch to be closed to connect the electrical connection between the interface and the power switch unit.

4. The first single board according to claim 3, wherein The switch is a relay, the processing unit is connected to the control end of the relay, the input end of the relay is connected to the interface, and the output end of the relay is connected to the power switch unit; or The switch is a metal oxide semiconductor MOS transistor, the processing unit is connected to the gate of the MOS transistor, the source of the MOS transistor is connected to the interface, and the drain of the MOS transistor is connected to the power switch unit; or The switch is a triode, the processing unit is connected to the base of the triode, the emitter of the triode is connected to the interface, and the collector of the triode is connected to the power switch unit.

5. The first single board according to any one of claims 1-4, characterized in that, The first single board is an interface board, and the second single board is a main control board.

6. The first single board according to claim 3 or 4, characterized in that, The processing unit is a monitoring unit on the first single board, and the monitoring unit is used to monitor the first single board.

7. The first single board according to any one of claims 1-6, characterized in that, The information includes one or more of the following: the status information of the first single board or the status information of the second single board.

8. A processing method for a single board, characterized in that The single board is the first single board, and the first single board includes: an interface, a switching unit, and a power switch unit; The method includes: Disconnect the electrical connection between the interface and the power switch unit; Connect the electrical connection between the power switch unit and the power board, so that the power board provides an input voltage to the first single board; Receive or send information for interacting with the second single board through the interface when there is voltage input to the first single board; Connect the electrical connection between the interface and the power switch unit; After receiving the disconnection indication signal sent from the second single board through the interface, disconnect the electrical connection between the power switch unit and the power board.

9. The method according to claim 8, wherein The disconnecting the electrical connection between the power switch unit and the power board includes: Sending the disconnection indication signal to the power switch unit, where the disconnection indication signal is used to indicate disconnecting the electrical connection between the power switch unit and the power board, so that the power switch unit disconnects the electrical connection between the power switch unit and the power board based on the disconnection indication signal.

10. The method according to claim 8 or 9, characterized in that, After disconnecting the electrical connection between the power switch unit and the power board, it further includes: After receiving the connection indication signal from the second single board through the interface, connect the electrical connection between the power switch unit and the power board, so that the power board provides an input voltage to the first single board.

11. The method according to any one of claims 8 to 10, characterized in that, The switching unit is a switch, and the disconnecting the electrical connection between the interface and the power switch unit includes: Controlling the switch to open to disconnect the electrical connection between the interface and the power switch unit; The connecting the electrical connection between the power switch unit and the power board includes: Controlling the switch to close to connect the electrical connection between the interface and the power switch unit.

12. The method according to claim 11, wherein The first single board further includes a processing unit for controlling the switch to open or close; The switch is a relay, the processing unit is connected to the control end of the relay, the input end of the relay is connected to the interface, and the output end of the relay is connected to the power switch unit; or, The switch is a metal oxide semiconductor MOS transistor, the processing unit is connected to the gate of the MOS transistor, the source of the MOS transistor is connected to the interface, and the drain of the MOS transistor is connected to the power switch unit; or, The switch is a triode, the processing unit is connected to the base of the triode, the emitter of the triode is connected to the interface, and the collector of the triode is connected to the power switch unit.

13. A device, characterized in that, The device includes the first single board according to any one of claims 1-7.

14. A multi-single-board system, characterized in that, Comprising the first single board, the second single board and the power board according to any one of claims 1-7.

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