A control method and system for a regulated power supply having a differential amplification stage

Abstract

The application relates to a control method and system of a voltage stabilizing power supply with a differential amplification link, and belongs to the technical field of voltage stabilizing power supply systems. The method comprises the following steps: when an adjusting knob and a voltage stabilizing power supply switch are both in a locking state, preferentially acquiring an adjusting instruction; and then unlocking the adjusting knob based on the adjusting instruction. Since the adjusting knob and the voltage stabilizing power supply switch are both in the locking state, a user cannot operate the adjusting knob and the voltage stabilizing power supply switch. When the user uses the voltage stabilizing power supply, the adjusting instruction is preferentially acquired, and then the adjusting knob is unlocked based on the adjusting instruction. At this time, the voltage stabilizing power supply switch is still in the locking state, so the user has to operate the adjusting knob first. Therefore, the user can avoid neglecting the reset (zero return) operation of the adjusting knob when using the voltage stabilizing power supply, and the failure of the direct-current voltage stabilizing power supply during use is reduced.

Description

Technical Field

[0001] This application relates to the technical field of regulated power supply systems, and in particular to a control method and system for a regulated power supply with a differential amplifier stage. Background Technology

[0002] Currently, a stabilized voltage supply is an electronic device that provides stable alternating current (AC) or direct current (DC) to a load. It includes two main categories: AC stabilized voltage supply and DC stabilized voltage supply. When the mains voltage or load experiences momentary fluctuations, the stabilized voltage supply compensates for the voltage amplitude with a response time of 10-30ms, stabilizing it within ±2%.

[0003] In related technologies, a DC regulated power supply is typically used to power the load. When using it, connect the two output lines of the DC regulated power supply to the positive and negative terminals of the load. Then, rotate the voltage adjustment knob to the minimum position (generally counter-clockwise to decrease), and then rotate the current regulation knob to the minimum position. Next, connect the power cord of the DC regulated power supply to an AC outlet, turn on the DC regulated power supply, and rotate the current regulation knob to adjust the current value appropriately. Then, rotate the voltage regulation knob to adjust the voltage as needed.

[0004] Regarding the aforementioned related technologies, the inventors discovered that when using a DC regulated power supply, different loads require different voltages. Therefore, when supplying power to different loads, the voltage adjustment knob is often neglected to be rotated to the minimum position, which often leads to malfunctions in the DC regulated power supply during use. Summary of the Invention

[0005] To reduce the occurrence of malfunctions in DC regulated power supplies during use, this application provides a control method and system for a regulated power supply with a differential amplifier stage.

[0006] Firstly, this application provides a control method for a regulated power supply with a differential amplification stage, which adopts the following technical solution: A control method for a regulated power supply with a differential amplifier stage, comprising: When both the adjustment knob and the regulated power switch are locked, the adjustment command is obtained first. Based on the adjustment command, unlock the adjustment knob.

[0007] By adopting the above technical solution, since both the adjustment knob and the regulated power switch are in the locked state, the user cannot operate the adjustment knob and the regulated power switch. When using the regulated power supply, the user will first obtain the adjustment command, and then unlock the adjustment knob based on the adjustment command. At this time, the regulated power switch is still in the locked state, so the user has to operate the adjustment knob first. Therefore, this avoids the user neglecting to reset (zero) the adjustment knob when using the regulated power supply, thus reducing the possibility of failure when using the DC regulated power supply.

[0008] Optionally, the control method further includes: After the adjustment knob is adjusted, a power-on command is obtained; Based on the power-on command, the regulated power supply switch is unlocked.

[0009] By adopting the above technical solution, after turning the adjustment knob to the minimum value, a power-on command is obtained. Based on the power-on command, the regulated power supply switch is unlocked, so that the user can turn on the regulated power supply through the regulated power supply switch. At this time, the adjustment knob is still in the unlocked state, so that the adjustment knob can be operated when the regulated power supply is in use.

[0010] Optionally, the control method further includes: After unlocking the adjustment knob, an auxiliary signal is output; After the adjustment knob is adjusted, a power-on command is obtained; Based on the auxiliary signal and the power-on command, the regulated power supply switch is unlocked.

[0011] By adopting the above technical solution, and through the two limiting adjustments of auxiliary signal and power-on command, the situation where users neglect to operate the adjustment knob when using the regulated power supply is further avoided.

[0012] Optionally, the control method further includes: After unlocking the regulated power supply switch, a safety command is obtained; Based on the safety command, the regulated power supply switch is locked.

[0013] By adopting the above technical solution, since it is stipulated that the voltage regulator cannot be turned on and off arbitrarily like a circuit switch when using the voltage regulator, a safety command is obtained after the voltage regulator switch is turned on, and based on the safety command, the voltage regulator switch is locked again to prevent user operation.

[0014] Optionally, the step after unlocking the regulated power supply switch further includes: Output the first timing signal; Based on the first timing signal, timing is performed, and a first duration is output; Determine whether the security instruction is obtained when the first duration exceeds a preset first duration threshold; if not, output a lock signal. Based on the locking signal, the regulated power supply switch is locked.

[0015] By adopting the above technical solution, if no safety command is obtained when the first duration is longer than the first duration threshold, it means that the user may have ignored locking the regulated power switch. Therefore, a lock signal will be automatically output, and the regulated power switch will be locked based on the lock signal to further prevent the user from operating the regulated power switch.

[0016] Optionally, the control method further includes: When both the adjustment knob and the regulated power switch are locked, if the power-on command is received first, a prompt message is output.

[0017] By adopting the above technical solution, the user is prompted that the operation is incorrect and is asked to repeat the operation.

[0018] Optionally, the control method further includes: When the regulated power supply is no longer in use and the adjustment knob is in the unlocked state, a second timing signal is output; Based on the second timing signal, timing is performed, and the second duration is output; Determine whether the second duration is greater than a preset second duration threshold; if so, output a reset signal. Based on the reset signal, the adjustment knob is automatically locked.

[0019] By adopting the above technical solution, after the regulated power supply is turned off, the second duration obtained is the duration after the regulated power supply stops being used. If the duration is longer than the second duration threshold, it indicates that the user may have forgotten to lock the adjustment knob. Therefore, a reset signal is output to automatically lock the adjustment knob.

[0020] Secondly, this application provides a control system for a regulated power supply with a differential amplifier stage, employing the following technical solution: A control system for a regulated power supply with a differential amplifier stage, comprising: The adjustment command sending module is used to send adjustment commands when both the adjustment knob and the regulated power switch are locked. The adjustment instruction acquisition module is used to acquire adjustment instructions; A locking assembly for locking the adjusting knob and the regulated power switch; The control module is connected to both the adjustment command acquisition module and the locking component, and controls the locking component to unlock the adjustment knob based on the adjustment command.

[0021] By adopting the above technical solution, when a regulated power supply is to be used, the user first sends an adjustment command through the adjustment command sending module, the adjustment command acquisition module acquires the adjustment command, and then the control module controls the locking component to unlock the adjustment knob based on the adjustment command. Since both the adjustment knob and the regulated power switch are locked, the user cannot operate them. After unlocking the adjustment knob, the regulated power switch remains locked, so the user must first operate the adjustment knob. This prevents the user from neglecting to reset the adjustment knob when using the regulated power supply, thus reducing the likelihood of malfunctions during DC regulated power supply use.

[0022] Optionally, the control system further includes: A power-on command sending module is used to send a power-on command after the adjustment knob has been adjusted. A power-on command acquisition module is used to acquire the power-on command; The control module is connected to the power-on command acquisition module, and controls the locking component to unlock the regulated power switch based on the power-on command.

[0023] By adopting the above technical solution, after unlocking the adjustment knob, the user sends a power-on command through the power-on command sending module, the power-on command acquisition module acquires the power-on command, and then the control module controls the locking component to unlock the regulated power switch based on the power-on command. At this time, the adjustment knob is still in the unlocked state.

[0024] Optionally, the control system further includes: A safety command sending module is used to send a safety command after the regulated power supply switch is unlocked; A security instruction acquisition module is used to acquire the security instruction; The control module is connected to the safety command acquisition module, and based on the safety command, controls the locking component to lock the regulated power switch.

[0025] By adopting the above technical solution, in order to prevent the voltage regulator switch from being switched on and off arbitrarily after it is turned on, the user can send a safety command through the safety command sending module. The safety command acquisition module obtains the safety command, and then the control module controls the locking component to lock the voltage regulator switch based on the safety command.

[0026] In summary, this application has at least the following beneficial effects: 1. Prioritizing the acquisition of adjustment commands to unlock the adjustment knob aims to ensure that, even after unlocking the knob, the power supply switch remains locked, forcing the user to operate the adjustment knob first. This prevents users from neglecting to reset the adjustment knob while using the power supply, thus reducing the likelihood of malfunctions during DC power supply operation. 2. The purpose of obtaining the power-on command to unlock the regulated power supply switch is to unlock the regulated power supply switch so that the user can turn on the regulated power supply through the regulated power supply switch. Since the adjustment knob is still in the unlocked state, it is convenient to operate the adjustment knob when using the regulated power supply. 3. The purpose of obtaining a safety command to lock the regulated power supply switch is that, since it is stipulated that the regulated power supply cannot be turned on and off arbitrarily like a circuit switch when using it, a safety command is obtained after the regulated power supply switch is turned on, and based on the safety command, the regulated power supply switch is locked again to prevent user operation. Attached Figure Description

[0027] Figure 1 This is a flowchart illustrating the first implementation of the unlocking adjustment knob step in the method embodiment of this application; Figure 2 This is a flowchart of the first implementation of the method embodiment of this application for unlocking the voltage regulator switch; Figure 3 This is a flowchart of another embodiment of the step of unlocking the voltage regulator switch in the method embodiment of this application; Figure 4 This is a flowchart of one embodiment of the locking and stabilizing power source switch step in the method embodiment of this application; Figure 5 This is a flowchart of the steps after unlocking the regulated power supply switch in the method embodiment of this application; Figure 6 This is a flowchart of the steps following the termination of use of the regulated power supply in the embodiments of the method of this application; Figure 7 This is a structural block diagram of the unlocking adjustment knob in an embodiment of the system of this application; Figure 8 This is a schematic diagram of one embodiment of the locking component in the system embodiments of this application; Figure 9 This is a structural block diagram of one embodiment of the system for unlocking the regulated power supply switch in this application. Figure 10 This is a structural block diagram of another embodiment of the system for unlocking the regulated power supply switch in this application. Figure 11 This is a structural block diagram of the locking and regulating power switch in the system embodiment of this application; Figure 12This is a structural block diagram of the system embodiment of this application, which outputs a prompt message after first obtaining the power-on command; Figure 13 This is a structural block diagram of the system embodiment of this application, showing how the adjustment knob is locked after the regulated power supply is no longer in use.

[0028] Explanation of reference numerals in the attached drawings: 110, Adjustment command sending module; 120, Adjustment command acquisition module; 130, Locking assembly; 131, Electric push rod; 132, Locking plate; 140, Control module; 150, Power-on command sending module; 160, Power-on command acquisition module; 170, Auxiliary signal output module; 180, Safety command sending module; 190, Safety command acquisition module; 210, First timing signal output module; 220, First timing module; 230, Judgment module; 240, Prompt module; 250, Second timing signal output module; 260, Second timing module. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will be described in conjunction with the appendices in the embodiments of the present invention. Figure 1 -Appendix Figure 13 The technical solutions in the embodiments of the present invention are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] One embodiment of this application discloses a control method for a regulated power supply with a differential amplifier stage. (Refer to...) Figure 1 As one embodiment of the method, the method may include steps S110-S120: S110, when both the adjustment knob and the regulated power switch are locked, priority is given to obtaining the adjustment command; Initially, both the adjustment knob and the regulated power supply are locked. If the user wants to use the regulated power supply, they need to send an adjustment command first.

[0031] S120, based on this adjustment command, unlock the adjustment knob.

[0032] Reference Figure 2 As another embodiment of the control method, the control method may further include steps S130-S140: S130: After the adjustment knob is adjusted, a power-on command is received; S140, based on this power-on command, unlocks the regulated power supply switch.

[0033] Reference Figure 3As another embodiment of the control method, the control method may include steps S150-S170: S150 outputs an auxiliary signal after the adjustment knob is unlocked; S160: After the adjustment knob is adjusted, a power-on command is received. S170 unlocks the regulated power supply switch based on auxiliary signals and power-on commands.

[0034] Steps S130-S140 and steps S150-S170 are parallel.

[0035] Reference Figure 4 As another embodiment of the control method, the control method may further include steps S180-S190: S180, after unlocking the regulated power supply switch, obtains a safety command; S190, based on safety instructions, locks the regulated power supply switch.

[0036] Reference Figure 5 Additionally, the steps following unlocking the regulated power supply switch may also include steps S181-S184: S181, output the first timing signal; S182, based on the first timing signal, performs timing and outputs the first duration; S183, determine whether a security instruction has been obtained when the first duration exceeds the preset first duration threshold; if not, send a lock signal. S184, based on the latching signal, locks the regulated power supply switch.

[0037] For example, the first duration threshold can be set to 20 seconds. After unlocking the regulated power switch, if the first duration is 21 seconds, the regulated power switch is still not locked. Therefore, it can be determined that no safety command has been obtained after 20 seconds, i.e., the user has not sent a safety command. Therefore, a locking signal will be automatically sent to lock the regulated power switch.

[0038] In addition, as another embodiment of the control method, the control method may also include the following steps: When both the adjustment knob and the regulated power switch are locked, if the power-on command is received first, a prompt message will be output.

[0039] When both the adjustment knob and the regulated power switch are locked, if the user issues a power-on command first, the regulated power switch will not be unlocked. Instead, a prompt message will be output to indicate an operational error. This prompt message may include information about the order of operation steps, such as, "Please reset the adjustment knob first."

[0040] Reference Figure 6As another implementation of the control method, the control method may further include steps S210-S240: S210 outputs a second timing signal after the regulated power supply has stopped working and the adjustment knob is in the unlocked state; S220, based on the second timing signal, performs timing and outputs the second duration; S230, determine whether the second duration is greater than the preset second duration threshold; if so, output a reset signal. S240 automatically locks the adjustment knob based on the reset signal.

[0041] For example, the second duration threshold can be set to 30 seconds. If the second duration is 31 seconds, it means that the user did not lock the adjustment knob within 31 seconds after the regulated power supply was finished using it. Therefore, a reset signal will be output to automatically lock the adjustment knob. It should be noted that, based on safety commands, the regulated power supply switch can be locked, or it will automatically lock if the first duration exceeds the first duration threshold when no safety command is received. Therefore, there is no need to consider the locking status of the regulated power supply switch after the regulated power supply is finished using it.

[0042] In other embodiments, step S230 may also output a reset prompt message. In step S240, based on the reset prompt message, the user is prompted to lock the adjustment knob. For example, the reset prompt message may be "Please reset", "Please lock the adjustment knob and the regulated power switch", etc.

[0043] The implementation principle of this application embodiment is as follows: When the adjustment knob and the regulated power supply are locked, an adjustment command is obtained first, and then the adjustment knob is unlocked based on the adjustment command. After the adjustment knob is adjusted, a power-on command is obtained, and then the regulated power supply switch is unlocked based on the power-on command. After the regulated power supply switch is unlocked, a safety command is obtained, and then the regulated power supply switch is locked based on the safety command. After the regulated power supply is no longer in use and the adjustment knob is not locked, a second timing signal is output. Then, based on the second timing signal, timing is started and a second duration is output. When the second duration exceeds the second duration threshold, a reset signal is output, and then the adjustment knob is automatically locked based on the reset signal.

[0044] Based on the above method embodiments, another embodiment of this application provides a control system for a regulated power supply with a differential amplification stage, referring to... Figure 7 As one embodiment of the control system, the control system includes: The adjustment command sending module 110 is used to send an adjustment command when both the adjustment knob and the regulated power switch are locked. The adjustment instruction acquisition module 120 is used to acquire adjustment instructions; Locking assembly 130 is used to lock the adjusting knob and the regulated power switch; The control module 140 is connected to the adjustment command acquisition module 120 and the locking component 130 respectively. Based on the adjustment command, it controls the locking component 130 to unlock the adjustment knob.

[0045] Reference Figure 8 As one embodiment of the locking assembly 130, the locking assembly 130 may include two electric push rods 131 and two locking plates 132. The two electric push rods 131 are respectively fixedly connected to the corresponding locking plates 132. One locking plate 132 is used to block the adjustment knob, and the other locking plate 132 is used to block the voltage regulator switch. Both electric push rods 131 are connected to the control module 140.

[0046] Reference Figure 9 As another implementation of the control system, the control system may further include: The power-on command sending module 150 is used to send a power-on command after the adjustment knob has been adjusted. Power-on command acquisition module 160 is used to acquire power-on commands; The control module 140 is connected to the power-on command acquisition module 160, and controls the locking component 130 to unlock the regulated power switch based on the power-on command.

[0047] Additionally, refer to Figure 10 As another implementation of the control system, this control system differs from the aforementioned unlocking regulated power supply switch in that it may include: Auxiliary signal output module 170 is used to output auxiliary signals; The control module 140 is also connected to the auxiliary signal output module 170, which controls the locking assembly 130 to unlock the regulated power switch based on the auxiliary signal and the power-on command.

[0048] The auxiliary signal output module 170 can be a pressure sensor. The pressure sensor is installed on the housing of the regulated power supply. When the locking component 130 unlocks the adjustment knob, the baffle corresponding to the adjustment knob exerts pressure on the pressure sensor, thereby causing the pressure sensor to output an auxiliary signal.

[0049] Reference Figure 11 As another implementation of the control system, the control system may further include: The safety command sending module 180 is used to send a safety command after the regulated power supply switch is unlocked; Security instruction acquisition module 190 is used to acquire security instructions; The control module 140 is connected to the safety command acquisition module 190, and controls the locking assembly 130 to lock the regulated power switch based on the safety command.

[0050] The control system may also include: The first timing signal output module 210 is used to output a first timing signal after the regulated power supply switch is unlocked; The first timing module 220 is used for timing and outputs the first duration; The judgment module 230 is used to determine whether a security instruction is obtained when the first duration is greater than a preset first duration threshold. The control module 140 is connected to the first timing module 220, the first timing signal output module 210, and the judgment module 230 respectively. It is used to receive the first timing signal to control the first timing module 220 to keep time. When the first duration is determined to be greater than the first duration threshold and the safety command acquisition module 190 does not acquire the safety command, it outputs a locking signal to the locking component 130. After receiving the locking signal, the locking component 130 locks the regulated power supply switch.

[0051] Reference Figure 12 As another implementation of the control system, the control system may include: The prompt module 240 is used to output prompt information; The control module 140 is connected to the prompt module 240 and is used to control the prompt module 240 to output prompt information when both the adjustment knob and the regulated power switch are in the locked state and the power-on command acquisition module 160 obtains the power-on command first.

[0052] The prompt module 240 can be a component with voice broadcasting function, such as a voice alarm, and is installed on the casing of the regulated power supply.

[0053] Reference Figure 13 As another implementation of the control system, the control system may include: The second timing signal output module 250 is used to output a second timing signal after the regulated power supply is turned off and the adjustment knob is in the unlocked state; The second timing module 260 is used for timing and outputs a second duration; The judgment module 230 is used to determine whether the second duration is greater than a preset second duration threshold; The control module 140 is also connected to the second timing signal output module 250 and the second timing module 260, respectively, to receive the second timing signal and control the second timing module 260 to keep time. When the control module 140 determines that the second duration is greater than the second duration threshold, it outputs a reset signal to the locking component 130. After receiving the reset signal, the locking component 130 locks the adjustment knob.

[0054] In other embodiments, if the control module 140 determines that the second duration is greater than the second duration threshold, it can output a reset prompt message to the prompt module 240. After receiving the reset prompt message, the prompt module 240 reminds the user to lock the adjustment knob.

[0055] It should be noted that the adjustment command sending module 110, safety command sending module 180, and power-on command sending module 150 can all be control buttons located on the casing of the voltage regulator. These three control buttons can be distinguished by color; for example, the control button for sending adjustment commands can be red, the control button for sending power-on commands can be green, and the control button for sending safety commands can be yellow. The adjustment command sending module 110, safety command sending module 180, and power-on command sending module 150 can also be virtual buttons on a user's terminal (e.g., a smartphone, tablet, or other smart display and control device). The user's terminal can connect to the control module 140 via Bluetooth. The control module 140 can be a microcontroller or other control chip. The adjustment command acquisition module 120, power-on command acquisition module 160, safety command acquisition module 190, first timing signal output module 210, second timing signal output module 250, first timing module 220, second timing module 260, and judgment module 230 can be integrated by a program and embedded within the control module 140.

[0056] The implementation principle of this embodiment is as follows: When the adjustment knob and the regulated power supply are locked, the user first sends an adjustment command through the adjustment command sending module 110, which is then received by the adjustment command acquisition module 120. Based on this adjustment command, the control module 140 controls the locking assembly 130 to unlock the adjustment knob. After the adjustment knob is adjusted, the power-on command sending module 150 sends a power-on command, which is received by the power-on command acquisition module 160. Based on this power-on command, the control module 140 controls the locking assembly 130 to unlock the regulated power supply switch. After unlocking the regulated power supply switch, the safety command sending module 180 sends a safety command, which is received by the safety command acquisition module 190. The control module 140, based on the safety command, controls the locking component 130 to lock the regulated power supply switch. After the regulated power supply is no longer in use and the adjustment knob is not locked, the second timing signal output module 250 outputs a second timing signal. Then, based on the second timing signal, the control module 140 controls the second timing module 260 to start timing. The second timing module 260 outputs a second duration in real time. The judgment module 230 judges whether the second duration is greater than the second duration threshold. When the second duration is greater than the second duration threshold, the control module 140 outputs a reset signal to the locking component 130. After receiving the reset signal, the locking component 130 locks the adjustment knob.

[0057] The above are all preferred embodiments of the present application and are not intended to limit the scope of protection of this application. Any feature disclosed in this specification (including the abstract and drawings) may be replaced by other equivalent or similar features unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is only one example of a series of equivalent or similar features.

Claims

1. A control method for a regulated power supply with a differential amplifier stage, characterized in that, include: When both the adjustment knob and the regulated power switch are locked, the adjustment command is obtained first. Based on the adjustment command, unlock the adjustment knob; After the adjustment knob is adjusted, a power-on command is obtained; Based on the power-on command, the regulated power supply switch is unlocked; After unlocking the regulated power supply switch, a safety command is obtained; Based on the aforementioned safety command, the regulated power supply switch is locked; The steps following unlocking the regulated power supply switch include: Output the first timing signal; Based on the first timing signal, timing is performed, and a first duration is output; Determine whether the security instruction is obtained when the first duration exceeds a preset first duration threshold; if not, output a lock signal. Based on the locking signal, the regulated power supply switch is locked; The control method further includes: When the regulated power supply is no longer in use and the adjustment knob is in the unlocked state, a second timing signal is output; Based on the second timing signal, timing is performed, and the second duration is output; Determine whether the second duration is greater than a preset second duration threshold; if so, output a reset signal. Based on the reset signal, the adjustment knob is automatically locked.

2. The control method for a regulated power supply with a differential amplification stage according to claim 1, characterized in that, The control method further includes: After unlocking the adjustment knob, an auxiliary signal is output; After the adjustment knob is adjusted, a power-on command is obtained; Based on the auxiliary signal and the power-on command, the regulated power supply switch is unlocked.

3. The control method for a regulated power supply with a differential amplification stage according to claim 1, characterized in that, The control method further includes: When both the adjustment knob and the regulated power switch are locked, if the power-on command is received first, a prompt message is output.

4. A control system for a regulated power supply with a differential amplifier stage, characterized in that, The control method for a regulated power supply with a differential amplifier stage as described in any one of claims 1-3 includes: The adjustment command sending module (110) is used to send an adjustment command when both the adjustment knob and the regulated power switch are locked. The adjustment instruction acquisition module (120) is used to acquire adjustment instructions; A locking assembly (130) is used to lock the adjusting knob and the regulated power switch; The control module (140) is connected to the adjustment command acquisition module (120) and the locking assembly (130) respectively, and controls the locking assembly (130) to unlock the adjustment knob based on the adjustment command; The power-on command sending module (150) is used to send a power-on command after the adjustment knob has been adjusted. A power-on command acquisition module (160) is used to acquire the power-on command; The control module (140) is connected to the power-on command acquisition module (160), and controls the locking component (130) to unlock the regulated power switch based on the power-on command; A safety command sending module (180) is used to send a safety command after the regulated power supply switch is unlocked; A security instruction acquisition module (190) is used to acquire the security instruction; The control module (140) is connected to the safety command acquisition module (190), and controls the locking component (130) to lock the regulated power switch based on the safety command.

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