A control system of a device, an AR device and a VR device

Abstract

The application discloses a control system of a device, an AR device and a VR device, relates to the field of power management, and the device comprises a module to be powered on and a capacitor module, the control system comprises a management module and a soft start module, the soft start module comprises a soft start controllable switch, a first end of the soft start controllable switch is connected with a system power supply end of the management module, and second ends of the soft start controllable switch are connected with the capacitor module and the module to be powered on respectively. The application can ensure that the capacitor module is not charged at the moment of starting the device, the management module cannot detect the existence of a large current, and the protection state is not entered, so that the normal starting of the device is ensured.

Description

Technical Field

[0001] This application relates to the field of power management, and in particular to a control system for a device, an AR device, and a VR device. Background Technology

[0002] With the rise of the metaverse, VR (Virtual Reality) and AR (Augmented Reality) devices have proliferated, and their functions have become increasingly complex. However, as device functionality increases, so does power consumption. To improve product operational safety, [further details are needed]. Figure 1 As shown, capacitor modules are typically installed in the system power supply path. When the device is powered on or a USB device is plugged in, the power management chip starts up. The system power supply terminal VSYS of the power management chip is powered on first, causing the capacitor modules in the system power supply path to charge instantly. If the current drawn by the capacitor modules is too large, the power management chip will detect the presence of the large current and enter the overcurrent protection state, which will cause the device to fail to power on normally.

[0003] Therefore, how to provide a solution to the above-mentioned technical problems is a problem that needs to be solved by those skilled in the art. Summary of the Invention

[0004] The purpose of this application is to provide a control system for an AR device and a VR device, which enables the capacitor module to stop charging at the moment of device startup, so that the management module cannot detect the presence of a large current and will not enter the protection state, thus ensuring that the device can start normally.

[0005] To solve the above-mentioned technical problems, this application provides a control system for a device, the device including a power-on module and a capacitor module, the control system including a management module and a soft-start module, the soft-start module including a soft-start controllable switch, the first end of the soft-start controllable switch being connected to the system power supply terminal of the management module, and the second end of the soft-start controllable switch being connected to the capacitor module and the power-on module respectively;

[0006] The management module is used to output the system power supply voltage through the system power supply terminal when it receives a system startup command;

[0007] The soft start module also includes an adjustment module, which is used to control the soft start controllable switch to be in an open state and then in a partially open state when the current time has not reached the current target delay start time; it is also used to control the soft start controllable switch to be in a fully open state when the current time has reached the current target delay start time.

[0008] The soft-start controllable switch is used to convert the system power supply voltage into a charging voltage to charge the capacitor module when it is in the partially conducting state, and is also used to output the system power supply voltage to the module to be powered on when it is in the fully conducting state, so that the device can perform a power-on operation.

[0009] Optionally, the management module is also used to determine whether the device is powered on normally. If not, it cuts off the output of the system power supply terminal, generates and sends a time adjustment command, and then re-outputs the system power supply voltage through the system power supply terminal.

[0010] The adjustment module is used to respond to the time adjustment command and adjust the current target delay start time to the target delay start time corresponding to the time adjustment command.

[0011] Optionally, the management module is further configured to record the configuration information corresponding to the time adjustment command when the device is determined to be powered on normally, so that when the system startup command is received again, the time adjustment command can be output to the adjustment module based on the recorded configuration information.

[0012] Optionally, the device further includes a battery module, and the management module further includes a battery power supply terminal;

[0013] The management module is also used to charge the battery module through the battery power supply terminal to activate the battery module when the current target delay start time has not been reached at the current time.

[0014] Optionally, the control system further includes an energy storage module, which includes a load controllable switch and a capacitor unit. The module to be powered on includes a control module. The first terminal of the load controllable switch is connected to the second terminal of the soft-start controllable switch. The second terminal of the load controllable switch is connected to the capacitor unit. The control terminal of the load controllable switch is connected to the control module.

[0015] The control module is configured to control the load controllable switch to close after normal startup so as to charge the capacitor unit through the system power supply voltage, and to control the load controllable switch to open when the charging disconnection condition is met; and / or, the control module is configured to control the load controllable switch to close when it is determined that the load demand power is greater than a preset value.

[0016] Optionally, the adjustment module includes a first capacitor, a first resistor, and a second resistor, wherein:

[0017] The first terminal of the first capacitor is connected to the first terminal of the soft-start controllable switch and the first terminal of the first resistor, respectively. The second terminal of the first capacitor is connected to the second terminal of the first resistor, the first terminal of the second resistor and the control terminal of the soft-start controllable switch, respectively. The second terminal of the second resistor is grounded.

[0018] Optionally, the adjustment module includes a main time-adjusting circuit and at least one auxiliary time-adjusting unit. The main time-adjusting circuit includes a first capacitor, a first resistor, and a second resistor, wherein:

[0019] The first end of the first capacitor is connected to the first end of the soft-start controllable switch and the first end of the first resistor respectively. The second end of the first capacitor is connected to the second end of the first resistor, the first end of the second resistor and the control end of the soft-start controllable switch respectively. The second end of the second resistor is grounded. The first end of each auxiliary time adjustment unit is connected to the control end of the soft-start controllable switch. The second end of each auxiliary time adjustment unit is grounded or connected to the system power supply end.

[0020] The management module is also used to generate and send time adjustment instructions, which are used to control the auxiliary time adjustment unit to switch into or out of the main time adjustment circuit.

[0021] The master timing circuit is used to control the soft start controllable switch to be in an open state and then in a partially open state when the current time has not reached the current target delay start time corresponding to the timing instruction, and is also used to control the soft start controllable switch to be in a fully open state when the current time reaches the current target delay start time.

[0022] Optionally, the auxiliary time adjustment unit includes a time adjustment controllable switch connected in series and at least one time adjustment element, wherein the time adjustment element is a capacitor or a resistor, and the control terminal of the time adjustment controllable switch is connected to the management module for receiving the time adjustment command.

[0023] To address the aforementioned technical problems, this application also provides an AR device, including a control system for the device as described in any of the above descriptions.

[0024] To address the aforementioned technical problems, this application also provides a VR device, including a control system for the device as described in any of the above descriptions.

[0025] This application provides a control system for a device. A soft-start controllable switch is set between the system power supply terminal of the management module and the capacitor module. After receiving a power-on command, the management module outputs the system power supply voltage. At the instant the management module's system power supply terminal is powered on, the adjustment module controls the soft-start controllable switch to open, thus preventing the capacitor module from charging at the moment of device startup. Because the capacitor module does not charge at startup, the management module cannot detect the presence of a large current and will not enter a protection state. Before the current target delay startup time is reached, the system voltage is first converted to a charging voltage through the soft-start controllable switch to charge the capacitor module. When the current target delay startup time is reached, the soft-start controllable switch is fully open, allowing the system power supply voltage to be transmitted to the module to be powered on, enabling the device to perform a power-on operation. Since the capacitor module has already been charged when the soft-start controllable switch is not fully open, there is no problem of instantaneous charging of the capacitor module when the soft-start controllable switch is fully open, thus ensuring normal device startup. This application also provides an AR device and a VR device with the same beneficial effects as the control system described above. Attached Figure Description

[0026] To more clearly illustrate the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the control system of a device in the prior art;

[0028] Figure 2 A schematic diagram of the control system of a device provided in this application;

[0029] Figure 3 A schematic diagram of the control system of another device provided in this application;

[0030] Figure 4 A circuit simulation diagram provided for this application;

[0031] Figure 5 A schematic diagram of the control system of another device provided in this application;

[0032] Figure 6 A schematic diagram of the control system of another device provided in this application. Detailed Implementation

[0033] The core of this application is to provide a control system for an AR device and a VR device, which enables the capacitor module to stop charging at the moment of device startup, so that the management module cannot detect the presence of a large current and will not enter the protection state, thus ensuring that the device can start normally.

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] Firstly, please refer to Figure 2 , Figure 2 The present application provides a schematic diagram of the structure of a control system for a device. The device includes a power-on module 01 and a capacitor module 02. The control system includes a management module 11 and a soft-start module 12. The soft-start module 12 includes a soft-start controllable switch QP1. The first end of the soft-start controllable switch QP1 is connected to the system power supply end of the management module 11, and the second end of the soft-start controllable switch QP1 is connected to the capacitor module 02 and the power-on module 01 respectively.

[0036] Management module 11 is used to output the system power supply voltage through the system power supply terminal when a system startup command is received;

[0037] The soft start module 12 also includes an adjustment module 121, which is used to control the soft start controllable switch QP1 to be in the open state and then in the partially open state when the current time has not reached the current target delay start time, and is also used to control the soft start controllable switch to be in the fully open state when the current time has reached the current target delay start time.

[0038] The soft-start controllable switch QP1 is used to convert the system power supply voltage into a charging voltage to charge the capacitor module 02 when it is not fully conducting, and also to output the system power supply voltage to the module 01 to be powered on when it is fully conducting, so that the device can perform a power-on operation.

[0039] The device can be an electronic device such as an AR device or a VR device, as shown in the reference. Figure 2 As shown, the device includes a management module 11 and a power-on module 01. The power-on module 01 includes, but is not limited to, a load module and a control module. The path between the system power supply terminal VSYS of the management module 11 and the power-on module 01 is the system power supply path. The device also includes a capacitor module 02, which is disposed on the system power supply path. In this embodiment, the management module 11 can specifically be a power management chip.

[0040] It is understandable that after receiving the system startup command, the management module 11 prioritizes powering on its system power supply terminal VSYS. To prevent the downstream capacitor module 02 from charging instantaneously and drawing a large current at the moment the system power supply terminal VSYS is powered on, thus causing the management module 11 to enter overcurrent protection mode, the control system provided in this embodiment also includes a soft-start module 12. The soft-start module 12 includes a soft-start controllable switch QP1, which is set on the system power supply path. The first end of the soft-start controllable switch QP1 is connected to the system power supply terminal VSYS, and the second end of the soft-start controllable switch QP1 is connected to the capacitor module 02 and the module 01 to be powered on at the downstream end of the system power supply path, respectively. The system startup command can be a command generated when the device is connected to a USB device, or a command generated when the user operates the corresponding power button on the device.

[0041] The soft start module 12 also includes an adjustment module 121, which is connected to the soft start controllable switch QP1 and is used to adjust the state of the soft start controllable switch QP1. The state of the soft start controllable switch QP1 includes an open state, a partially conducting state, and a fully conducting state. The adjustment module 121 is also used to adjust the time for the soft start controllable switch QP1 to go from the open state to the fully conducting state, that is, to adjust the delayed start time of the device.

[0042] Specifically, the adjustment module 121 first controls the soft-start controllable switch QP1 to be in the off state. At the instant the system power supply terminal VSYS is powered on, the soft-start controllable switch QP1 is in the off state, preventing the downstream capacitor module 02 from charging. Because the downstream capacitor module 02 is not charging momentarily, the management module 11 does not detect a large current and can perform subsequent operations normally. Next, the adjustment module 121 controls the soft-start controllable switch QP1 to be in a partially conducting state. In this partially conducting state, the soft-start controllable switch QP1 can convert the voltage output from the system power supply terminal into a charging voltage, slowly charging the downstream capacitor module 02. As time progresses, when the current target delay start time is reached, the soft-start controllable switch QP1 is in a fully conducting state. At this time, the system power supply voltage output from the system power supply terminal VSYS of the management module 11 can be directly transmitted to the module 01 to be powered on, allowing the module 01 to be powered on under the system power supply voltage, thus enabling the device to perform the power-on action. Since the back-end capacitor module 02 has been charged when the soft start controllable switch QP1 is not fully turned on, there will be no instantaneous charging of the capacitor module 02 after the soft start controllable switch QP1 is fully turned on, which further ensures that the equipment can start normally.

[0043] As an optional embodiment, the soft-start controllable switch QP1 can specifically be a PMOS transistor; please refer to [reference needed]. Figure 3 , Figure 3The schematic diagram of the management system of another device provided in this application shows that the adjustment module 121 includes a first capacitor C1, a first resistor R1 and a second resistor R2. The first end of the first capacitor C1 is connected to the first end of the soft-start controllable switch QP1 and the first end of the first resistor R1. The second end of the first capacitor C1 is connected to the second end of the first resistor R1, the first end of the second resistor R2 and the control end of the soft-start controllable switch QP1. The second end of the second resistor R2 is grounded.

[0044] Specifically, at the moment the system power supply terminal VSYS of management module 11 is powered on, the PMOS is disconnected due to the action of adjustment module 121, referring to... Figure 4 As shown, over time, the system power supply voltage output by the system power supply terminal VSYS charges the first capacitor C1. The increase in the voltage across the first capacitor C1 causes a decrease in the voltage between the first capacitor C1 and the second resistor R2. Figure 4 The voltage curve ① in the figure causes the state of the PMOS to change. When the first capacitor C1 is not fully charged, the PMOS is in a partially turned-on state, and the voltage on the system power supply path rises slowly. Figure 4 The voltage curve ② in the figure shows that the back-end capacitor module 02 is slowly charged. When the first capacitor C1 is fully charged, the PMOS is in a fully conducting state and transmits the system power supply voltage output by the system power supply terminal VSYS to the module 01 to be powered on.

[0045] It is understandable that the time for the soft start controllable switch QP1 to go from the off state to the fully on state depends on the capacitance value of the first capacitor C1 and the resistance values ​​of the first resistor R1 and the second resistor R2. Different soft start controllable switches QP1 may have different on-state voltage drops. Therefore, the device's delayed start time needs to be determined based on the parameters of the soft start controllable switch QP1 and the parameters of the adjustment module 121. The adjustment module 121 and the soft start controllable switch QP1 can be selected according to the actual engineering needs to set the corresponding target delayed start time. The target delayed start time is the time from the moment the system power supply terminal VSYS of the management module 11 is powered on to the time when the soft start controllable switch QP1 is fully on.

[0046] As can be seen, in this embodiment, a soft-start controllable switch QP1 is set between the system power supply terminal of the management module 11 and the capacitor module 02. After receiving the power-on command, the management module 11 outputs the system power supply voltage. The adjustment module 121 controls the soft-start controllable switch QP1 to open at the moment the system power supply terminal of the management module 11 is powered on, so that the capacitor module 02 does not charge at the moment the device starts. Since the capacitor module 02 does not charge at the moment the device starts, the management module 11 cannot detect the presence of a large current and will not enter the protection state. The current target delay start time has not been reached at the current time. First, the system voltage is converted into a charging voltage by the soft-start controllable switch QP1 to charge the capacitor module 02. When the current time reaches the current target delay start time, the soft-start controllable switch QP1 is in a fully conducting state, which can transmit the system power supply voltage to the module 01 to be powered on, so that the device can perform the power-on operation. Since the capacitor module 02 has been charged when the soft-start controllable switch QP1 is not fully conducting, there will be no problem of instantaneous charging of the capacitor module 02 when the soft-start controllable switch QP1 is in a fully conducting state, thus ensuring the normal start-up of the device.

[0047] Based on the above embodiments:

[0048] As an optional embodiment, the management module 11 is also used to determine whether the device is powered on normally. If not, it cuts off the output of the system power supply terminal, generates and sends a time adjustment command, and then re-outputs the system power supply voltage through the system power supply terminal.

[0049] The adjustment module 121 is used to respond to the time adjustment command and adjust the current target delay start time to the target delay start time corresponding to the time adjustment command.

[0050] Considering that the current target delay start time configured based on the parameter information of the aforementioned adjustment module 121 and soft start controllable switch QP1 may not meet the device's power-on requirements, such as the system failing to start normally or the battery module 03 not being activated due to an unreasonable target delay start time configuration, the management module 11 is also used to monitor whether the device can start normally in order to ensure that the device can start normally. If the device cannot start normally after the current time reaches the target time corresponding to the current target delay start time, it means that the target delay start time needs to be reconfigured. The management module 11 first cuts off the output of the system power supply terminal, and then sends a time adjustment command to the adjustment module 121. When the adjustment module 121 responds to the time adjustment command and adjusts the current target delay start time to the target delay start time corresponding to the time adjustment command, the management module 11 re-outputs the system power supply voltage through the system power supply terminal, and then re-determines whether the device can start normally under the adjusted target delay start time. If not, this step is repeated until the configured target delay start time can meet the device's power-on requirements.

[0051] Understandably, referring to Figure 5 As shown, the device to be powered on includes a control module 011, which can specifically be the device's MCU module. The management module 11 has at least one first GPIO port, and the control module 011 has at least one second GPIO port. One first GPIO port of the management module 11 and one second GPIO port of the control module 011 are connected to enable information exchange between them. After the control module 011 starts normally, it outputs power-on information to the first GPIO port of the management module 11 through the second GPIO port. If the management module 11 receives the power-on information before the target time corresponding to the current target delay start time is reached, it determines that the device has started normally. If the management module 11 still does not receive the power-on information after the target time corresponding to the current target delay start time is reached, it determines that the device has not started normally. The target time is slightly longer than the current target delay start time.

[0052] Of course, in addition to the above-mentioned method, the management module 11 can also use other methods to determine whether the device is powered on normally. This embodiment does not make specific limitations here.

[0053] The operation of reconfiguring the current target delay start time can be achieved by adjusting the parameter information of the adjustment module 121.

[0054] As an optional embodiment, the adjustment module 121 includes a main time-adjusting circuit and at least one auxiliary time-adjusting unit. The main time-adjusting circuit includes a first capacitor C1, a first resistor R1, and a second resistor R2, wherein:

[0055] The first terminal of the first capacitor C1 is connected to the first terminal of the soft-start controllable switch QP1 and the first terminal of the first resistor R1. The second terminal of the first capacitor C1 is connected to the second terminal of the first resistor R1, the first terminal of the second resistor R2 and the control terminal of the soft-start controllable switch QP1. The second terminal of the second resistor R2 is grounded. The first terminal of each auxiliary time adjustment unit is connected to the control terminal of the soft-start controllable switch QP1. The second terminal of each auxiliary time adjustment unit is grounded or connected to the system power supply terminal.

[0056] Management module 11 is also used to generate and send time adjustment instructions, which are used to control the auxiliary time adjustment unit to switch into or out of the main time adjustment circuit.

[0057] The main timing circuit is used to control the soft start controllable switch QP1 to be in the open state and then in the partially open state when the current time has not reached the current target delay start time corresponding to the timing instruction. It is also used to control the soft start controllable switch to be in the fully open state when the current time reaches the current target delay start time.

[0058] In this embodiment, the adjustment module 121 includes a main time adjustment circuit, which adjusts the state of the soft-start controllable switch QP1. The adjustment module 121 also includes at least one auxiliary time adjustment unit, which adjusts the parameter information of the main time adjustment circuit by switching the corresponding auxiliary time adjustment unit into or out of the main time adjustment circuit, thereby adjusting the time of the soft-start controllable switch QP1 in each state, and thus adjusting the current delayed start time of the device.

[0059] For example, assuming the master timing circuit only includes a first capacitor C1, a first resistor R1, and a second resistor R2, the current target delay start time is determined based on the capacitance of the first capacitor C1, the resistance of the first resistor R1, and the resistance of the second resistor R2. If a timing unit is switched into the master timing circuit, assuming this timing unit includes a third resistor R3, then the master timing circuit includes a first capacitor C1, a first resistor R1, a second resistor R2, and a third resistor R3. At this time, the current target delay start time is determined based on the capacitance of the first capacitor C1, the resistance of the first resistor R1, the resistance of the second resistor R2, and the resistance of the third resistor R3. Since the third resistor R3 is newly switched in, the parameter information of the master timing circuit changes, causing the soft-start controllable switch QP1 under the control of the master timing circuit to change the time in each state, thereby achieving the purpose of adjusting the current target delay start time.

[0060] As an optional embodiment, the auxiliary time adjustment unit includes a time adjustment controllable switch connected in series and at least one time adjustment element, which is a capacitor or a resistor. The control terminal of the time adjustment controllable switch is connected to the management module 11 to receive time adjustment commands.

[0061] Each auxiliary time-adjusting unit includes a time-adjusting controllable switch and at least one time-adjusting element. The management module 11 controls the on / off state of the time-adjusting controllable switch to switch the time-adjusting element into or out of the main time-adjusting circuit. To achieve precise control, the management module 11 can connect to each time-adjusting controllable switch one-to-one through multiple first GPIO ports to send corresponding time-adjusting commands to each time-adjusting controllable switch.

[0062] Reference Figure 5 As shown, Figure 5 The diagram shows an adjustment module 121 including four auxiliary timing units. Of course, for cases with multiple requirements, more auxiliary timing units can be added to configure more delay start times.

[0063] The four auxiliary time-adjustment units are denoted as the first auxiliary time-adjustment unit, the second auxiliary time-adjustment unit, the third auxiliary time-adjustment unit, and the fourth auxiliary time-adjustment unit. The first auxiliary time-adjustment unit includes a first time-adjustment controllable switch QP2 and a second capacitor C2; the second auxiliary time-adjustment unit includes a second time-adjustment controllable switch QP3 and a third resistor R3; the third auxiliary time-adjustment unit includes a third time-adjustment controllable switch QN1 and a fourth resistor R4; and the fourth auxiliary time-adjustment unit includes a fourth time-adjustment controllable switch QN2 and a fifth resistor R5. The first and second time-adjustment controllable switches QP2 and QP3 can be PMOS transistors, while the third and fourth time-adjustment controllable switches QN1 and QN2 can be NMOS transistors. The control terminals of the first, second, third, and fourth time-adjustment controllable switches QP2, QP3, QN1, and QN2 are connected one-to-one with the four first GPIO ports of the management module 11. The specific connection relationships are detailed in [reference needed]. Figure 5 As shown.

[0064] Understandably, when the device is first started, all four time-adjusting controllable switches are turned off by default. That is, the main time-adjusting circuit only includes the first capacitor C1, the first resistor R1, and the second resistor R2. When the management module 11 determines that the device cannot start normally under the target delay start time determined based on the first capacitor C1, the first resistor R1, and the second resistor R2, the management module 11 first controls the output of its system power supply to be disconnected, and then outputs the corresponding time-adjusting commands through the four GPIO ports respectively, controlling the time-adjusting elements in the corresponding auxiliary time-adjusting units to switch into the main time-adjusting circuit. The time-adjusting commands may include a turn-on command to control the first time-adjusting controllable switch QP2 to be turned on and a turn-off command to control the second time-adjusting controllable switch QP3, the third time-adjusting controllable switch QN1, and the fourth time-adjusting controllable switch QN2 to be turned off. The adjustment module 121 responds to the above four time-adjusting commands and switches the second capacitor C2 into the main time-adjusting circuit. The timing circuit, managed by the management module 11, controls its system power supply terminal to re-output the system power supply voltage. The main timing circuit operates and adjusts the state of the soft-start controllable switch QP1. The management module 11 re-determines whether the device can be powered on normally under the target delay start time determined based on the first capacitor C1, the second capacitor C2, the first resistor R1, and the second resistor R2. If not, the corresponding timing instructions are re-output through the four GPIO ports. The timing instructions may include the turn-on instruction to control the first timing controllable switch QP2 to be turned on, the turn-on instruction to control the second timing controllable switch QP3 to be turned on, the turn-off instruction to control the third timing controllable switch QN1 to be turned off, and the turn-off instruction to control the fourth timing controllable switch QN2 to be turned off. Then, the operation of determining whether the device can be powered on normally is re-executed until the current target delay start time configured by the main timing circuit meets the power-on requirements of the device.

[0065] Of course, the above switching scheme is just an example. The order of switching in and out of the auxiliary time adjustment unit, as well as the number of switching in and out, can be set according to the actual engineering needs. In addition, the capacitance value of the second capacitor C2, the resistance values ​​of the third resistor R3, the fourth resistor R4, and the fifth resistor R5 can be selected according to the actual engineering needs. This embodiment does not make specific limitations here.

[0066] As an optional embodiment, the management module 11 is also used to record the configuration information corresponding to the time adjustment command when the device is determined to be powered on normally, so that when the system startup command is received again, the time adjustment command can be output to the adjustment module 121 based on the recorded configuration information.

[0067] Specifically, the configuration information refers to the parameter information of the aforementioned master timing circuit. Assuming the device can power on normally under a certain timing command, the configuration information corresponding to that command is recorded. For example, if the timing commands output by the four GPIO ports are 1100, then the configuration information of the master timing circuit includes information related to the first capacitor C1, the first resistor R1, and the second resistor R2. If the device can power on normally under the configuration of this master timing circuit, the current configuration information of the master timing circuit and the corresponding timing command 1100 are recorded so that the management module 11 can receive the system startup information again. When the start command is given, 1100 is directly output to the adjustment module 121. For example, the timing commands output by the four GPIO ports are 1110. At this time, the configuration information of the main timing circuit includes information related to the first capacitor C1, the first resistor R1, the second resistor R2, and the fourth resistor R4. If the device can be powered on normally under the configuration of the main timing circuit, the current configuration information of the main timing circuit and the timing command 1110 corresponding to the configuration information are recorded so that when the management module 11 receives the system start command again, it can directly output 1110 to the adjustment module 121 to improve the power-on efficiency of the device.

[0068] It is understandable that when the management module 11 receives the system start command for the first time, it defaults to not switching each auxiliary time adjustment unit into the main time adjustment circuit. Therefore, the default time adjustment command output is 1100. When the system start command is received for the i-th time, the output time adjustment command is the time adjustment command recorded when the system start command is received for the (i-1)-th time and the device is successfully powered on. i = 2, 3, ... n, where n is the preset maximum number of adjustments. If the device still cannot be powered on normally for the nth time, it can be determined that the device is abnormal.

[0069] Please refer to Figure 6 , Figure 6 This is a schematic diagram of the control system of another device provided in this application, which is based on the above embodiments:

[0070] As an optional embodiment, the device also includes a battery module 03, and the management module 11 also includes a battery power supply terminal;

[0071] The management module 11 is also used to charge the battery module 03 through the battery power supply terminal to activate the battery module 03 when the current target delay start time has not been reached at the current time.

[0072] Understandably, the device also has a battery module 03, which is connected to the battery power supply terminal of the management module 11. Considering that the device may also have a situation where the battery module 03 is in a protected state, in this situation, when the device is connected to a USB device, the management module 11 receives the system startup command, and the system power supply terminal VSYS is powered on first. Due to the presence of the soft start module 12, the capacitor module 02 at the back end of the system power supply path will not be charged instantly. The management module 11 performs subsequent work normally, and its battery power supply terminal Vbat is powered on to activate the battery module 03, so that the battery module 03 is no longer in a protected state, so that the battery module 03 can supply power to the system in the future, further ensuring that the device can start normally.

[0073] As an optional embodiment, the control system further includes an energy storage module, which includes a load controllable switch 131 and a capacitor unit 132. The power-on module 01 includes a control module 011. The first end of the load controllable switch 131 is connected to the second end of the soft-start controllable switch QP1, the second end of the load controllable switch 131 is connected to the capacitor unit 132, and the control end of the load controllable switch 131 is connected to the control module 011.

[0074] The control module 011 is used to control the load controllable switch 131 to close after normal startup so as to charge the capacitor unit 132 with the system power supply voltage, and to control the load controllable switch 131 to open when the charging disconnection condition is met; and / or, the control module 011 is used to control the load controllable switch 131 to close when it is determined that the load demand power is greater than a preset value.

[0075] The control module 011 is also equipped with a control port, through which it connects to the load controllable switch 131 to output control commands. Specifically, after the control module 011 starts normally, it outputs a first control command to the load controllable switch 131 to turn it on, so that the system power supply voltage output from the system power supply terminal can charge the capacitor unit 132 for energy storage. When the charging disconnection condition is met, it outputs a second control command to the load controllable switch 131 to turn it off. The charging disconnection condition includes, but is not limited to, the energy stored in the capacitor unit 132 reaching a preset value. When the device needs to enable some high-power scenario functions, i.e., when the load power demand is determined to be greater than the preset value, the control module 011 outputs a first control command to the load controllable switch 131 to turn it on, so that the load can be powered simultaneously through the system power supply terminal VSYS and the capacitor unit 132, ensuring the normal implementation of the high-power scenario functions.

[0076] The following is based on, Figure 6 The control systems shown illustrate different operating conditions of the equipment:

[0077] Operating Condition 1:

[0078] Battery module 03 in the device is in a protected state. A USB device needs to be inserted to activate battery module 03 and power on the device. When the USB module is inserted, the power management IC starts first, adjusting QP2, QP3, QN1, and QN2 in module 121 to be in a disconnected state. The system power supply terminal VSYS of the power management IC is powered on. Because QP1 is located behind VSYS, QP1 disconnects the moment VSYS is powered on, preventing the capacitor module 02 from charging. Since the capacitor module 02 behind VSYS does not charge momentarily, the power management IC does not detect a large current, and it operates normally. At this time, the battery power supply terminal Vbat of the power management IC is powered on, activating battery module 03. As time progresses, VSYS charges C1. When C1 is fully charged... When QP1 is fully conducting, the VSYS system reaches a normal power-on state, the device executes normal power-on logic, and the MCU starts normally. After startup, it sends power-on information back to the power management IC via GPIO ports. Upon receiving the power-on information, the power management IC determines that the system has started normally. If the system fails to start, the battery is not activated, and the power management IC does not receive the power-on information from the MCU, it cuts off the VSYS power supply. It then controls the conduction or disconnection of peripheral QP2, QP3, QN1, and QN2 via GPIO to adjust different delay startup times. Upon restarting the system, when the adapted delay startup time meets the startup requirements, the MCU sends back its power-on signal. The power management IC's register records the current configuration information. Subsequent power-on attempts will directly call the default delay startup time to ensure normal system startup. It is understandable that before QP1 is fully conducting, [further details are needed]. Figure 4 In the circuit simulation shown, the voltage between C1 and R2 gradually decreases over time, while the voltage on the VSYS system slowly increases. This indicates that capacitor module 02 has begun charging, albeit slowly. Before QP1 is fully turned on, capacitor module 02 at the VSYS backend has completed its charging process. Therefore, once QP1 is fully turned on, there is no risk of the system failing to power on due to instantaneous charging of capacitor module 02. At this point, battery module 03 is activated, and the system is powered on. After power-on, the MCU controls the load controllable switch 131 to turn on, charging capacitor unit 132 at the backend of the load controllable switch 131 to store some energy.

[0079] Operating Condition 2:

[0080] The battery module 03 in the device is not in a protected state, and the power management IC enters ship mode. At this time, the system power supply terminal VSYS of the management module 11 is not powered on. When the user presses a button or inserts a USB device, the power management IC starts working. Assuming that when the system startup command generated by the user pressing the button is received, the battery module 03 supplies power to the system power supply terminal VSYS of the management module 11. Due to the function of QP1, the system power supply terminal VSYS will not charge the back-end capacitor module 02 at this time. Over time, the system power supply voltage output by the system power supply terminal VSYS charges C1. When C1 is fully charged, QP1 is fully turned on, thereby supplying power to the back-end module 01 that is waiting to be powered on. Before QP1 is fully turned on, power is supplied through... Figure 4 As shown in the circuit simulation, the voltage between C1 and R2 gradually decreases over time, while the voltage on the VSYS system slowly increases over time, indicating that capacitor module 02 is beginning to charge slowly. When C1 is fully charged, QP1 is fully turned on, and capacitor module 02 at the back end of VSYS is fully charged. There is no sudden large current charging at this point, so the system can power on normally. If the system fails to power on, the power management IC does not receive the power-on signal from the MCU. The power management IC cuts off the VSYS power supply and controls the conduction or disconnection of peripheral QP2, QP3, QN1, and QN2 via GPIO to adjust different delay start times. When the adapted delay start time meets the power-on requirements, the MCU sends back its power-on signal. The power management IC's register records the current configuration information. In subsequent power-on attempts, the default delay start time is directly called to ensure that the system can start normally. After the device powers on normally, the MCU controls the load controllable switch 131 to conduct, charging the back end capacitor unit 132 and storing some energy.

[0081] Operating Condition 3:

[0082] The battery module 03 has a low power level. At this time, the device is already powered on, and the control module 011 has controlled the load controllable switch 131 to charge the back-end capacitor unit 132. When the device enables some high-power scenario functions, although the load is large, not only will the system power supply VSYS supply power to the load, but the energy stored in the capacitor unit 132 behind the load controllable switch 131 will also be used to supply power to the load. This ensures the device functions even when the battery module 03 has a low power level.

[0083] Secondly, this application also provides an AR device, including a control system for the device as described in any of the embodiments above.

[0084] For a description of the AR device provided in this application, please refer to the above embodiments; further details will not be repeated here.

[0085] The AR device provided in this application has the same beneficial effects as the control system of the aforementioned device.

[0086] Thirdly, this application also provides a VR device, including a control system for the device as described in any of the embodiments above.

[0087] For a description of the VR device provided in this application, please refer to the above embodiments; further details will not be repeated here.

[0088] The VR device provided in this application has the same beneficial effects as the control system of the aforementioned device.

[0089] It should also be noted that, in this specification, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0090] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A control system for a device, characterized in that, The device includes a power-on module and a capacitor module. The control system includes a management module and a soft-start module. The soft-start module includes a soft-start controllable switch. The first end of the soft-start controllable switch is connected to the system power supply end of the management module, and the second end of the soft-start controllable switch is connected to the capacitor module and the power-on module respectively. The management module is used to output the system power supply voltage through the system power supply terminal when it receives a system startup command; The soft start module also includes an adjustment module, which is used to control the soft start controllable switch to be in an open state and then in a partially open state when the current time has not reached the current target delay start time; it is also used to control the soft start controllable switch to be in a fully open state when the current time has reached the current target delay start time. The soft-start controllable switch is used to convert the system power supply voltage into a charging voltage to charge the capacitor module when it is in the partially conducting state, and is also used to output the system power supply voltage to the module to be powered on when it is in the fully conducting state, so that the device can perform a power-on operation. The management module is also used to determine whether the device is powered on normally. If not, it cuts off the output of the system power supply terminal, generates and sends a time adjustment command, and then re-outputs the system power supply voltage through the system power supply terminal. The adjustment module is used to respond to the time adjustment command and adjust the current target delay start time to the target delay start time corresponding to the time adjustment command.

2. The control system of the equipment according to claim 1, characterized in that, The management module is also used to record the configuration information corresponding to the time adjustment command when the device is determined to be powered on normally, so that when the system startup command is received again, the time adjustment command can be output to the adjustment module based on the recorded configuration information.

3. The control system of the equipment according to claim 1, characterized in that, The device also includes a battery module, and the management module also includes a battery power supply terminal; The management module is also used to charge the battery module through the battery power supply terminal to activate the battery module when the current target delay start time has not been reached at the current time.

4. The control system of the equipment according to claim 1, characterized in that, The control system further includes an energy storage module, which includes a load controllable switch and a capacitor unit. The module to be powered on includes a control module. The first terminal of the load controllable switch is connected to the second terminal of the soft-start controllable switch. The second terminal of the load controllable switch is connected to the capacitor unit. The control terminal of the load controllable switch is connected to the control module. The control module is configured to control the load controllable switch to close after normal startup so as to charge the capacitor unit through the system power supply voltage, and to control the load controllable switch to open when the charging disconnection condition is met; and / or, the control module is configured to control the load controllable switch to close when it is determined that the load demand power is greater than a preset value.

5. The control system of the equipment according to claim 1, characterized in that, The adjustment module includes a first capacitor, a first resistor, and a second resistor, wherein: The first terminal of the first capacitor is connected to the first terminal of the soft-start controllable switch and the first terminal of the first resistor, respectively. The second terminal of the first capacitor is connected to the second terminal of the first resistor, the first terminal of the second resistor and the control terminal of the soft-start controllable switch, respectively. The second terminal of the second resistor is grounded.

6. The control system of the equipment according to any one of claims 1-4, characterized in that, The adjustment module includes a main time-adjusting circuit and at least one auxiliary time-adjusting unit. The main time-adjusting circuit includes a first capacitor, a first resistor, and a second resistor, wherein: The first end of the first capacitor is connected to the first end of the soft-start controllable switch and the first end of the first resistor respectively. The second end of the first capacitor is connected to the second end of the first resistor, the first end of the second resistor and the control end of the soft-start controllable switch respectively. The second end of the second resistor is grounded. The first end of each auxiliary time adjustment unit is connected to the control end of the soft-start controllable switch. The second end of each auxiliary time adjustment unit is grounded or connected to the system power supply end. The management module is also used to generate and send time adjustment instructions, which are used to control the auxiliary time adjustment unit to switch into or out of the main time adjustment circuit. The master timing circuit is used to control the soft start controllable switch to be in an open state and then in a partially open state when the current time has not reached the current target delay start time corresponding to the timing instruction, and is also used to control the soft start controllable switch to be in a fully open state when the current time reaches the current target delay start time.

7. The control system of the equipment according to claim 6, characterized in that, The auxiliary time adjustment unit includes a time adjustment controllable switch connected in series and at least one time adjustment element, wherein the time adjustment element is a capacitor or a resistor, and the control terminal of the time adjustment controllable switch is connected to the management module for receiving the time adjustment command.

8. An AR device, characterized in that, The control system of the device as described in any one of claims 1-7.

9. A VR device, characterized in that, The control system of the device as described in any one of claims 1-7.

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