A method and system for supplying power

Abstract

This application relates to a power supply method and system. The power supply system includes at least two terminals, each terminal including a power receiving controller, at least one electrical appliance, and a power supply controller. The power receiving controller is connected to both the electrical appliance and the power supply controller. The method includes: when the power receiving controller of a current-level terminal is connected to the power supply controller of a previous-level terminal via a common ground, the power receiving controller of the current-level terminal, in response to a first voltage output by the power supply controller of the previous-level terminal, outputs a second voltage to the electrical appliance of the current-level terminal, and outputs the first voltage to the power supply controller of the current-level terminal. By connecting the power supply controller and the power receiving controller via a common ground, parallel connection of the power supply controllers of each terminal and the power receiving controllers of each terminal is achieved, thereby ensuring that the power receiving controllers of each terminal receive sufficient voltage, thus realizing cascaded power supply.

Description

Technical Field

[0001] This application relates to the field of Power over Ethernet (PoE) technology, and in particular to a power supply method and system. Background Technology

[0002] In a PoE (Power Over Ethernet) power supply system, each terminal includes a main control processor unit, a storage unit, a power supply unit, a PSE (Power Sourcing Equipment) power supply interface, and a PD (Power Device) power receiving interface. Typically, the PSE power supply interface of one terminal is connected to the PD power receiving interface of another terminal to enable the connection between multiple terminals.

[0003] In traditional video conferencing systems, the main control CPU typically boots the system interface via an eMMC (embedded memory multimedia card) and communicates with various system application interfaces through the memory. The power supply module can be powered by either a DC adapter or a PD port. When powering via the terminal's PSE and PD ports, to provide sufficient voltage to the internal electrical components of the conferencing terminal, only a single PoE connection is generally used, with the DC adapter supplying power to the first-level conferencing terminal. When multiple conferencing terminals are cascaded, to ensure sufficient voltage to each level, a DC adapter is connected to each level terminal, and this DC adapter supplies power to each level terminal. The line between the PSE interface of one level terminal and the PD interface of the next level terminal is only used for signal transmission and not for power supply.

[0004] It is evident that traditional methods can only power the local conference terminal via a DC adapter, and cannot achieve cascading power supply between conference terminals. As video conferencing systems become increasingly complex, the simple power supply mode of traditional methods can no longer meet the complex business needs of audio and video conferencing systems. Summary of the Invention

[0005] Therefore, it is necessary to provide a power supply method and system that can realize cascaded power supply for terminals to address the above-mentioned technical problems.

[0006] In a first aspect, this application provides a power supply method applied to a power supply system, the power supply system comprising at least two terminals, each terminal comprising a power receiving controller, at least one electrical appliance, and a power supply controller, the power receiving controller being connected to the electrical appliance and the power supply controller respectively; the method comprising:

[0007] The power receiving controller of this terminal establishes a handshake protocol with the power supply controller of the previous terminal. At this time, the switch module in the power receiving controller of this terminal closes, and the ground wire of the power receiving controller of this terminal is connected to the ground wire of the power supply controller of the previous terminal. The switch module connects the ground wire of the power receiving controller of this terminal and the ground wire of the power supply controller of the previous terminal.

[0008] When the power receiving controller of the local terminal and the power supply controller of the preceding terminal are connected to the same ground, the power receiving controller of the local terminal responds to the first voltage output by the power supply controller of the preceding terminal, outputs a second voltage to the electrical appliances of the local terminal, and outputs the first voltage to the power supply controller of the local terminal.

[0009] In one embodiment, the power receiving controller of the terminal further includes a switch module, the switch module being connected to the ground wire of the power receiving controller of the current terminal and the ground wire of the power supply controller of the preceding terminal; the method further includes: if the switch module is triggered to close, the ground wire of the power receiving controller of the current terminal is connected to the ground wire of the power supply controller of the preceding terminal.

[0010] In one embodiment, the method further includes: the electrical appliance of the local terminal and the power supply controller of the preceding terminal are connected to a common ground.

[0011] In one embodiment, the terminal further includes a first power module connected to the power receiving controller; the method further includes: the first power module outputting the second voltage to the power receiving controller.

[0012] In one embodiment, the terminal further includes a first control module, which stores a first control command for controlling the electrical appliance to power on and operate; the method further includes: the first control module responding to the second voltage and sequentially sending the first control command to the at least one electrical appliance at a first preset time interval, so that the at least one electrical appliance is powered on and operated sequentially.

[0013] In one embodiment, the appliance further includes a second control module, which stores a second control command for controlling the power supply controller to power on; the method further includes: the second control module responding to the first control command and sending the second control command to the power supply controller at a second preset time interval to power on the power supply controller.

[0014] In one embodiment, the second control module further stores a third control command for controlling the power supply controller to stop working; the method further includes: the second control module responding to the second voltage and sending the third control command to the power supply controller to cause the power supply controller to stop working.

[0015] In one embodiment, the cascaded power supply system further includes a second power module; the second power module is connected to the power receiving controller of the first-level terminal; the first voltage includes a first power supply voltage; the method further includes: the second power module outputting the first power supply voltage to the power receiving controller of the first-level terminal.

[0016] In one embodiment, the second power module includes a power adapter.

[0017] In one embodiment, the first power module includes a data interface.

[0018] Secondly, this application also provides a power supply system, comprising: at least two terminals connected in sequence, each terminal including a power receiving controller, at least one electrical appliance, and a power supply controller, wherein the power receiving controller is connected to the electrical appliance and the power supply controller respectively; wherein...

[0019] The power receiving controller of this terminal establishes a handshake protocol with the power supply controller of the previous terminal. At this time, the switch module in the power receiving controller of this terminal closes, and the ground wire of the power receiving controller of this terminal is connected to the ground wire of the power supply controller of the previous terminal. The switch module connects the ground wire of the power receiving controller of this terminal and the ground wire of the power supply controller of the previous terminal.

[0020] When the power receiving controller of the local terminal and the power supply controller of the preceding terminal are connected to the same ground, the power receiving controller of the local terminal responds to the first voltage output by the power supply controller of the preceding terminal, outputs a second voltage to the electrical appliances of the local terminal, and outputs the first voltage to the power supply controller of the local terminal.

[0021] The above-described power supply method and system, when at least two terminals are cascaded, solves the technical problem in related technologies where cascading power supply is impossible due to insufficient voltage to the cascaded power controllers, by connecting the power receiving controller of the current terminal to the power supply controller of the previous terminal via a common ground, and since the power supply controller of the first-level terminal is directly powered by the power source, it is equivalent to the power supply controller of each terminal being connected in parallel with the power source, and the power source directly supplies power to the power receiving controller of each terminal. This achieves cascaded power supply between multiple terminals. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the power supply system shown in one embodiment;

[0023] Figure 2 This is a schematic diagram of the power supply system shown in one embodiment;

[0024] Figure 3 This is a schematic diagram of the power supply system shown in one embodiment;

[0025] Figure 4 This is a schematic diagram of the power supply system shown in one embodiment;

[0026] Figure 5 This is a schematic diagram of the power supply system shown in one embodiment;

[0027] Figure 6 This is a schematic diagram of the power supply system shown in one embodiment;

[0028] Figure 7 This is a schematic diagram of the power supply system shown in one embodiment;

[0029] Figure 8 This is a schematic diagram of the power supply system shown in one embodiment;

[0030] Figure 9 This is a schematic diagram of the structure of a terminal shown in one embodiment;

[0031] Figure 10 This is a schematic diagram of the terminal structure shown in one embodiment. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0033] In one embodiment, a power supply system is provided; see [link to relevant documentation]. Figure 1 , Figure 1 This is a schematic diagram of a power supply system in this embodiment. The power supply system includes at least two terminals. Each terminal includes a power receiving controller, at least one electrical appliance, and a power supply controller. The power receiving controller is connected to the electrical appliance and the power supply controller, and the power receiving controller of this terminal is connected to the power supply controller of the previous terminal via a common ground.

[0034] In this embodiment, the power supply controller of the preceding terminal is connected to the power receiving controller of the following terminal, thereby realizing the cascading of multiple terminals in the power supply system; such as Figure 1As shown, the power receiving controller of each terminal is connected to GND1 and grounded, and the power supply controller of each terminal is connected to GND2 and grounded. Furthermore, GND1 and GND2 are two different ground lines that are isolated from each other.

[0035] In practical applications, GND1 connected to the power receiving controller and GND2 connected to the power supply controller have different voltages. For example, GND1 connected to the power receiving controller is usually a ground wire with a voltage of 48V, and GND2 connected to the power supply controller is usually a ground wire with a voltage of 12V. In this embodiment, the actual voltage of the two isolated ground wires is not limited, as long as they are isolated from each other.

[0036] The terminal can be an integrated conference terminal or a conference system composed of multiple conference terminals; this embodiment does not limit the type of terminal. For example, a conference terminal can be a microphone terminal, a video terminal, an audio terminal, a recording terminal, etc.; this embodiment also does not limit the type of terminal.

[0037] The power supply controller can be a PSE chip, and the power receiving controller can be a PD chip.

[0038] Please continue reading Figure 1 When the power receiving controller of this level terminal and the power supply controller of the previous level terminal are connected to the same ground, i.e., GND1 and GND2 are connected. Optional, such as... Figure 1 As shown, GND1 and GND2 are connected by wire 100.

[0039] In this embodiment, a power supply method for the power supply system is also provided. When the power receiving controller of the current terminal and the power supply controller of the previous terminal are connected to the same ground, the power receiving controller of the current terminal responds to the first voltage output by the power supply controller of the previous terminal, outputs a second voltage to the electrical appliances of the current terminal, and outputs the first voltage to the power supply controller of the current terminal.

[0040] Please see Figure 2 Taking the Nth level terminal as an example, then the (N-1)th level terminal is the previous level terminal. The power receiving controller of the Nth level terminal and the power supply controller of the (N-1)th level terminal are both connected to ground wire GND1 or GND2. Figure 2 As shown, the power supply controller of the preceding terminal outputs a first voltage to the power receiving controller of the current terminal. In response to the first voltage, the power receiving controller of the current terminal outputs a second voltage to the electrical appliances of the current terminal and outputs the first voltage to the power supply controller of the current terminal.

[0041] In practical applications, the power supply controller of the preceding terminal can input the first voltage to the power receiving controller of the current terminal through the data transmission network cable via the PSE port of the preceding terminal and the PD port of the current terminal, so as to supply power to the current terminal.

[0042] The data transmission cable can be an RJ45 data cable, and this embodiment does not limit it.

[0043] pass Figure 2 It can be seen that the power receiving controller and power supply controller of the terminal both receive the first voltage output by the previous stage terminal. When GND1 and GND2 are connected, it is equivalent to the power receiving controller and power supply controller of each terminal being connected in parallel. That is to say, the power receiving controller and power supply controller of each terminal are connected in parallel with the power receiving controller of the first stage terminal. Therefore, the voltages at both ends of the power receiving controller and power supply controller of each terminal are equal to those at the power receiving controller of the first stage terminal.

[0044] If the power supply controller of the first-level terminal can output a first voltage to the next-level terminal, then when the power receiving controller and power supply controller of each terminal are connected in parallel, both the power receiving controller and the power supply controller of each terminal can obtain a voltage equal to the voltage output by the first-level terminal, thus obtaining the first voltage. This ensures that the first voltage is provided to the power supply controllers of each cascaded terminal, supporting multi-level cascaded PoE power supply.

[0045] Furthermore, since PoE power supply can be cascaded through multiple terminals, the complexity of the circuit is simplified, and the materials required to build complex circuits are also saved.

[0046] It should be noted that in this embodiment, the first voltage refers to the voltage provided to the power supply controller, and the second voltage refers to the voltage provided to the electrical appliances. In practical applications, the first voltage should be greater than the second voltage.

[0047] In another embodiment shown, the method further includes: if the trigger switch module is closed, the ground wire of the power receiving controller of the current terminal is connected to the ground wire of the power supply controller of the previous terminal.

[0048] The terminal's power controller also includes a switch module, which connects the ground wire of the power controller of this terminal to the ground wire of the power supply controller of the previous terminal.

[0049] For example, see Figure 3 , Figure 3 This is a schematic diagram of a power supply system according to this embodiment. Figure 3 As shown, the power controller of the terminal includes a switch module 300, which is connected to GND1 and GND2.

[0050] If the trigger switch module is closed, the switch module will connect GND1 and GND2. In practical applications, the switch module can be a transistor, MOSFET, wire, diode, etc. This application does not impose any other restrictions, as long as it can achieve conduction between the two locations.

[0051] Furthermore, the power controller can be a PD chip containing a transistor, a PD chip containing a MOSFET, a PD chip containing a diode, etc., and this embodiment does not limit it.

[0052] In another embodiment shown, the method further includes: the electrical appliances of this level terminal are connected to the power supply controller of the previous level terminal in a common ground.

[0053] For example, assuming that the power receiving controller and power supply controller of each terminal are both connected to ground wire GND1, please refer to [link to relevant documentation]. Figure 4 , Figure 4 This is a schematic diagram of a power supply system shown in this embodiment.

[0054] like Figure 4 As shown, the electrical appliances of each terminal are connected to another ground wire GND3, which is isolated from ground wire GND1. There is a conductor 400 between ground wire GND1 and ground wire GND3, so that ground wire GND1 and ground wire GND3 are connected.

[0055] At this point, in this level of terminal, the voltage of both the electrical appliances and the power supply controller is provided by the power receiving controller, and the electrical appliances and the power supply controller are connected to the same ground. Therefore, the electrical appliances and the power supply controller are connected in parallel; that is, each terminal electrical appliance is connected in parallel to the power receiving controller and the power supply controller of each terminal.

[0056] At this time, the electrical appliances of each terminal are also powered by the power supply controller of the first-level terminal.

[0057] By connecting the electrical appliances at the terminal to the power supply controller of the preceding terminal via a common ground, the electrical appliances at the terminal are connected in parallel to the circuit and powered by the power supply controller of the first-level terminal. This ensures that the electrical appliances at each level of the terminal can also obtain sufficient voltage to operate. Furthermore, while simplifying the circuit by realizing multi-cascaded PoE power supply, it also ensures that sufficient voltage is provided to each electrical appliance in the cascade to guarantee the proper use of each electrical appliance.

[0058] It should be noted that when the power supply controller of the first-level terminal supplies power to the electrical appliances of the terminal, the magnitudes of the first voltage and the second voltage are equal.

[0059] Furthermore, in practical applications, the voltage supplied to the next level terminal is often greater than the voltage required by the electrical appliance at this level. In other words, the second voltage required by the electrical appliance is less than the voltage provided by the power controller.

[0060] In another embodiment shown, the terminal may also include a step-down module to prevent electrical appliances from burning out.

[0061] For example, see Figure 5 , Figure 5 This is a schematic diagram of a power supply system according to this embodiment. Figure 5 As shown, the terminal also includes a step-down module 500, which is located between the power receiver and the appliance. The step-down module receives a first voltage output from the power receiver, performs step-down processing to obtain a second voltage, and outputs the second voltage to the appliance to provide power to the appliance.

[0062] The step-down module may include an isolation transformer and / or a BUCK step-down converter, which is not limited in this application.

[0063] In another embodiment shown, the terminal further includes a first power module connected to a power receiver; the method further includes: the first power module outputting a second voltage to the power receiver.

[0064] Please see Figure 6 , Figure 6 This is a schematic diagram of a power supply system according to this embodiment. Figure 7 As shown, the terminal also includes a first power module 600, which is connected to the power receiver and outputs a second voltage to the power receiver for supplying voltage to the electrical appliances.

[0065] The first power module can be a data interface. For example, the first power module can be a Type-A interface, a Type-B interface, a Type-C interface, etc., and this embodiment does not impose other limitations on it.

[0066] In another embodiment shown, the power supply system further includes a second power module; the second power module is connected to the power receiving controller of the first-level terminal; the first voltage includes a first power supply voltage; the method further includes: the second power module outputting the first power supply voltage to the power receiving controller of the first-level terminal.

[0067] Please see Figure 7 , Figure 7 This is a schematic diagram of a power supply system according to this embodiment. Figure 7 As shown, the power supply system also includes a second power module 700, which is connected to the power receiving controller of the first-level terminal and provides a first power supply voltage to the power receiving controller of the first-level terminal.

[0068] It should be noted that since the power receiving controller and power supply controller of each terminal are connected in parallel to the circuit, and the second power module provides voltage to the first-level terminal, the parallel circuit is actually connected in parallel with the second power module, and the second power module provides cascade voltage to directly supply voltage to each level of terminal.

[0069] Therefore, in practical applications, as long as the voltage provided by the second power module is sufficient to enable the power supply controller of the first-level terminal to supply power to the second-level terminal, the power supply system can be guaranteed to achieve cascaded power supply.

[0070] In practical applications, the second power supply module can be a voltage adapter.

[0071] It should be noted that in the power supply system, if both the first power module and the second power module exist simultaneously, the second power module can be selected as the primary power supply method; furthermore, the power supply circuit of the first power module can be shut off, but this embodiment does not impose any limitations on this.

[0072] In another embodiment shown, please refer to Figure 8 , Figure 8 This is a schematic diagram of another power supply system shown in this embodiment. Figure 8 As shown, taking the connection between a first-level terminal and a second-level terminal as an example,

[0073] The adapter provides a 48V input voltage to the PSE controller of the first-level terminal. The PSE controller of the first-level terminal outputs the 48V input voltage through the PSE RJ45 port to the PD controller of the second-level terminal via the PD RJ45 port and the rectifier bridge.

[0074] The PD controller responds to the 48V input voltage, detects and classifies the voltage to determine the power consumption required to output to the next level terminal. In response to the determined power consumption level, the PD controller of this level terminal establishes a PoE handshake protocol with the PSE controller of the previous level terminal. At this time, the switch module in the PD controller of this level terminal closes, and the ground of the 48V adapter is connected to the ground of the PoE cascade, thereby realizing the function of the adapter's 48V voltage to power the cascaded downstream terminals.

[0075] The second-level PD controller receives the 48V voltage from the adapter through the RJ45 network cable. In addition to rectifying it through a rectifier bridge and outputting it to the PD controller cascade port, it also connects to the positive terminal of the PSE controller module, and provides a 48V power input to the PSE controller of this terminal.

[0076] In another embodiment shown, the terminal further includes a first control module, which stores a first control command for controlling the electrical appliances to power on and operate; the method further includes: the first control module responds to a second voltage and sequentially sends the first control command to at least one electrical appliance according to a first preset time interval, so that at least one electrical appliance is powered on and operated sequentially.

[0077] Please see Figure 9 , Figure 9 This is a schematic diagram of the structure of a terminal shown in this embodiment. Figure 9 As shown, the terminal may also include a first control module 800, which is located between the local electrical appliance and the power receiving controller.

[0078] The power receiving controller outputs a second voltage to the first control module, and the first control module responds to the second voltage and powers on; the first control module sends a first control command to at least one electrical appliance in sequence according to a first preset time interval; each electrical appliance of this terminal responds to the first control command and powers on.

[0079] The first control module can be an MCU chip.

[0080] In practical applications, the MCU chip on the motherboard outputs the first control command to each small module in the terminal through the control circuit on the MCU chip to control the power-on sequence of each small module in the terminal, thereby realizing the soft start of the electrical appliances in the terminal and avoiding insufficient voltage of the electrical appliances due to the large voltage required for the instantaneous power-on of multiple electrical appliances, which in turn affects the normal power-on operation of the terminal.

[0081] In another embodiment shown, the appliance further includes a second control module, which stores a second control command for controlling the power supply controller to power on; the method further includes: the second control module responding to the first control command and sending the second control command to the power supply controller to power on the power supply controller.

[0082] For example, see Figure 10 , Figure 10 This is a schematic diagram of the structure of a terminal shown in this embodiment. Figure 10 As shown, the electrical appliance may also include a second control module 900. The second control module stores second control commands for controlling the power supply controller to power on and operate.

[0083] When the second control module is powered on, it can output a second control command to the power supply controller; the power supply controller responds to the second control command and outputs a first voltage to the power receiving controller of the next level terminal.

[0084] The second control module may include a central processing unit and a control circuit for outputting second control commands to the power supply controller.

[0085] In practical applications, the CPU controls the power-on sequence of the microphone and speaker terminals through software, so that each main power supply is staggered and slowly powered on in sequence, reducing the peak power consumption during instantaneous power-on.

[0086] It should be noted that since the first control module sends power-on commands to different electrical appliances at preset time intervals, and if the second control module directly responds to the power-on command and controls the power supply controller to supply power to the next level terminal, it can also play the role of multi-terminal soft start.

[0087] However, in practical applications, there is a difference between the power-on time of the terminal appliances and the power-on time of multiple cascaded terminals. Usually, the power-on time of multiple cascaded terminals is longer. Obviously, relying solely on the first control module to control the power-on sequence of the appliances according to the preset time interval is insufficient to guarantee the problem of insufficient instantaneous voltage during the power supply process of the cascaded system.

[0088] In another embodiment shown, the second control module stores the ability to send the second control command to the power supply controller at a second preset time interval.

[0089] In practical applications, the second preset time interval can be greater than, less than or equal to the first preset time interval. The specific setting can be limited according to actual needs, and this embodiment does not impose any other limitations on this.

[0090] The second control module issues power-on commands at preset time intervals to achieve a slow start between terminals.

[0091] In another embodiment shown, the second control module further stores a third control command for controlling the power supply controller to stop working; the second control module is also connected to the first power module, and the method further includes: in response to the first power module outputting a second voltage, the second control module sends a third control command to the power supply controller to cause the power supply controller to stop working.

[0092] Optionally, the terminal may also include a detection circuit connected to the second control module and the first power module. In response to the second control module outputting a second voltage, the detection circuit outputs a first signal to the second control module. In response to the first signal, the second control module sends a third control command to the power supply controller to stop the power supply controller from working.

[0093] In practical applications, the CPU detects the plugging and unplugging signals of the USB port and outputs a voltage control signal through an external control circuit to turn off the external PSE enable of the microphone speaker terminal device. This reduces the external output load by disabling the external PSE power supply function when the power supply from the USB port is insufficient.

[0094] Optionally, when the microphone speaker terminal is plugged into the external DC power adapter of the integrated terminal, the external PSE power supply function is turned on through the external control circuit, and the PSE power supply capability is provided to the outside normally.

[0095] In practical applications, the PSE power supply function of the device is turned off when the device is powered only through the USB port, and the PSE power supply function of the terminal is turned on when the DC adapter is plugged in. The terminal's PSE can also be used to provide multi-level cascaded power supply when the first stage is plugged in. This method has a certain degree of flexibility and scalability.

[0096] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0097] Based on the same inventive concept, this application also provides a power supply system for implementing the power supply method described above. The solution provided by this system is similar to the solution described in the above method; therefore, specific limitations in one or more power supply system embodiments provided below can be found in the limitations of the power supply method described above, and will not be repeated here.

[0098] In one embodiment, such as Figure 1 As shown, a power supply system is provided, comprising: at least two terminals connected in sequence, each terminal including a power receiving controller, at least one electrical appliance, and a power supply controller, wherein the power receiving controller is connected to the electrical appliance and the power supply controller respectively; wherein,

[0099] When the power receiving controller of this level terminal is connected to the power supply controller of the previous level terminal in the same ground, the power receiving controller of this level terminal responds to the first voltage output by the power supply controller of the previous level terminal, outputs a second voltage to the electrical appliances of this level terminal, and outputs the first voltage to the power supply controller of this level terminal.

[0100] In one embodiment, the power receiving controller of the terminal further includes a switch module, the switch module being connected to the ground wire of the power receiving controller of the current terminal and the ground wire of the power supply controller of the preceding terminal; the system further includes: if the switch module is triggered to close, the ground wire of the power receiving controller of the current terminal is connected to the ground wire of the power supply controller of the preceding terminal.

[0101] In one embodiment, the electrical appliance of the local terminal is connected to the power supply controller of the preceding terminal via a common ground.

[0102] In one embodiment, the terminal further includes a first power module connected to the power receiving controller; the first power module is used to output the second voltage to the power receiving controller.

[0103] In one embodiment, the terminal further includes a first control module, which stores a first control command for controlling the electrical appliances to power on and operate; wherein, the first control module is used to respond to the second voltage and send the first control command to the at least one electrical appliance sequentially at a first preset time interval, so that the at least one electrical appliance is powered on and operated sequentially.

[0104] In one embodiment, the appliance further includes a second control module, which stores a second control command for controlling the power supply controller to power on; wherein the second control module is used to respond to the first control command and send the second control command to the power supply controller at a second preset time interval to power on the power supply controller.

[0105] In one embodiment, the second control module further stores a third control command for controlling the power supply controller to stop working, and the second control module is also connected to the first power module; wherein, the second control module is further configured to send the third control command to the power supply controller in response to the first power module outputting the second voltage, so as to cause the power supply controller to stop working.

[0106] In one embodiment, the power supply system further includes a second power module; the second power module is connected to the power receiving controller of the first-level terminal; the first voltage includes a first power supply voltage; wherein, the second power module is further configured to output the first power supply voltage to the power receiving controller of the first-level terminal.

[0107] In one embodiment, the second power module includes a power adapter.

[0108] In one embodiment, the first power module includes a data interface.

[0109] Those skilled in the art will understand that Figure 2 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0110] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties.

[0111] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0112] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A power supply method, applied to a power supply system, characterized in that, The power supply system includes at least two terminals, each terminal including a power receiving controller, at least one electrical appliance, and a power supply controller, wherein the power receiving controller is connected to the electrical appliance and the power supply controller respectively; the method includes: The power receiving controller of this terminal establishes a handshake protocol with the power supply controller of the previous terminal. At this time, the switch module in the power receiving controller of this terminal closes, and the ground wire of the power receiving controller of this terminal is connected to the ground wire of the power supply controller of the previous terminal. The switch module connects the ground wire of the power receiving controller of this terminal and the ground wire of the power supply controller of the previous terminal. When the power receiving controller of the local terminal and the power supply controller of the preceding terminal are connected to the same ground, the power receiving controller of the local terminal responds to the first voltage output by the power supply controller of the preceding terminal, outputs a second voltage to the electrical appliances of the local terminal, and outputs the first voltage to the power supply controller of the local terminal.

2. The method according to claim 1, characterized in that, The method further includes: The electrical appliances in this terminal are connected to the power supply controller of the preceding terminal via a common ground.

3. The method according to claim 1, characterized in that, The terminal further includes a first power module, which is connected to the power receiving controller; the method further includes: The first power module outputs the second voltage to the power receiving controller.

4. The method according to claim 3, characterized in that, The terminal further includes a first control module, which stores a first control command for controlling the electrical appliance to power on and operate; the method further includes: The first control module responds to the second voltage and sends the first control command to the at least one electrical appliance in sequence according to the first preset time interval, so that the at least one electrical appliance is powered on and put into operation in sequence.

5. The method according to claim 4, characterized in that, The electrical appliance further includes a second control module, which stores a second control command for controlling the power supply controller to power on; the method further includes: The second control module responds to the first control command by sending the second control command to the power supply controller at a second preset time interval, so as to power on the power supply controller.

6. The method according to claim 5, characterized in that, The second control module also stores a third control command for controlling the power supply controller to stop working, and the second control module is also connected to the first power supply module; the method further includes: In response to the first power module outputting the second voltage, the second control module sends the third control command to the power supply controller to cause the power supply controller to stop working.

7. The method according to claim 1, characterized in that, The power supply system further includes a second power module; the second power module is connected to the power receiving controller of the first-level terminal; the first voltage includes a first power supply voltage; the method further includes: The second power module outputs the first power supply voltage to the power receiver controller of the first-level terminal.

8. The method according to claim 7, characterized in that, The second power module includes a power adapter.

9. The method according to claim 3, characterized in that, The first power module includes a data interface.

10. A power supply system, characterized in that, include: At least two terminals are connected sequentially, each terminal including a power receiving controller, at least one electrical appliance, and a power supply controller, wherein the power receiving controller is connected to the electrical appliance and the power supply controller respectively; wherein... The power receiving controller of this terminal establishes a handshake protocol with the power supply controller of the previous terminal. At this time, the switch module in the power receiving controller of this terminal closes, and the ground wire of the power receiving controller of this terminal is connected to the ground wire of the power supply controller of the previous terminal. The switch module connects the ground wire of the power receiving controller of this terminal and the ground wire of the power supply controller of the previous terminal. When the power receiving controller of the local terminal and the power supply controller of the preceding terminal are connected to the same ground, the power receiving controller of the local terminal responds to the first voltage output by the power supply controller of the preceding terminal, outputs a second voltage to the electrical appliances of the local terminal, and outputs the first voltage to the power supply controller of the local terminal.

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