System, method, and apparatus for rebooting a device

Abstract

This invention discloses a system restart device, method, and apparatus, relating to the field of system restart technology. By simultaneously pressing a combination of buttons for a preset duration, a level inversion signal is obtained. This signal triggers a low-voltage operating device, which inverts its output signal. The inversion signal output by the low-voltage operating device is used to control a switching device to shut down the system's main power supply. Upon releasing the combination of buttons, a delay-based judgment circuit determines the button's state, obtaining a button disconnection information. Based on this disconnection information, the system's main power supply is turned on by the system's control switching device. This invention solves the technical problems of limited applicability and poor restarting effects in existing restart methods. By using multiple button combinations to enable a low-voltage device, triggering a conditional signal, and shutting down the device's main power, it achieves the effect of power-on after a power outage.

Description

Technical Field

[0001] This invention relates to the field of system restart technology, and in particular to a system restart device, method and apparatus. Background Technology

[0002] Electronic devices all have reliability issues. Even with careful hardware and software design, occasional system crashes are inevitable under extreme conditions, especially in the early stages of product development. When such malfunctions occur, a restart is usually used to restore normal operation. Currently, the main methods for handling system crashes are: 1. Restarting using a reset signal. (A reset circuit restores the circuit to its initial state, similar to the zero button on a calculator, allowing it to return to its original state and start calculating again.) If an external hardware reset button is provided, a restart can be achieved by touching it. However, a reset signal does not guarantee a successful restart every time. The simplest and most reliable method is to power off and then power on again. 2. Restarting by powering off and then powering on again.

[0003] However, not all devices have a reset button on the outside, and having more buttons on the outside can affect the appearance and make them easier to accidentally press. Furthermore, not all faults can be easily resolved by resetting. Powering off and then on again can completely restart and restore normal operation. For devices with only external power, this method is indeed simple and effective, but if there is an internal battery, it must be removed, which is tedious, can easily damage the appearance, and may accidentally damage internal circuitry. Also, it's not always possible to carry disassembly tools with you at all times. Summary of the Invention

[0004] The purpose of this application is to provide a system restart device, method, and apparatus to solve the technical problems of limited applicability and poor restart effect of existing restart methods.

[0005] In view of the above problems, this application provides a system restart device, method and apparatus.

[0006] In a first aspect, this application provides a system restart device, comprising: a button combination disposed externally to the system device, the button combination including at least two buttons; and a system control switch connected to the button combination, wherein the system control switch is connected to the system main power supply and controls the output of the system main power supply; wherein, when all buttons in the button combination are in a pressed state for a preset duration, the button combination acts on the system control switch to turn off the output of the system main power supply, and when all buttons in the button combination are in a reset state, the system control switch turns on the output of the system main power supply.

[0007] Preferably, the system restart device further includes a delay judgment circuit, which is connected to the button combination and judges the state of the button combination.

[0008] Preferably, the system restart device further includes a low-voltage operating device, one end of which is connected to the delay judgment circuit and the other end of which is connected to the system control switch device, and controls the system control switch device according to the state judgment result of the button combination.

[0009] Preferably, the low-voltage operating device includes any level-flipping device such as an OR device, MOSFET, diode, or transistor.

[0010] Preferably, the system restart device further includes a TRI device, which is disposed between the low-voltage operating device and the system control switch device. The low-voltage operating device outputs a low level to the system control switch device through the TRI device to shut down the system main power supply output.

[0011] Secondly, this application provides a system restart method, which is applied in the system restart device. The method includes: obtaining a level flip signal when a combination key is pressed simultaneously for more than a preset time; triggering a low-voltage working device through the level flip signal, the low-voltage working device flipping its output signal; controlling a system control switching device to turn off the system main power supply and complete the system shutdown function using the flip signal output by the low-voltage working device; releasing the combination key when the system shutdown function is completed, determining the state of the combination key through a delay judgment circuit to obtain combination key disconnection information; and turning on the system main power supply output through the system control switching device according to the combination key disconnection information.

[0012] Preferably, the low-voltage operating device is triggered by the level flip signal, prior to which the following steps are taken: detecting the level value of the combination key through a delay judgment circuit to determine the key level value; and determining whether the key level value is a normal level change.

[0013] Preferably, the level-flipping signal includes flipping from a low level to a high level and flipping from a high level to a low level.

[0014] Thirdly, a system restart device, comprising: a flip signal acquisition unit, used to acquire a level flip signal when a combination key is pressed simultaneously for more than a preset time; an output voltage flip unit, used to trigger a low-voltage operating device through the level flip signal, the low-voltage operating device flipping the output signal; a power-off control unit, used to control a switching device to shut down the system main power supply and complete the system shutdown function using the flip signal output by the low-voltage operating device; a combination key disconnection detection unit, used to release the combination key when the system shutdown function is completed, and determine the state of the combination key through a delay judgment circuit to obtain combination key disconnection information; and a restart unit, used to turn on the system main power supply output through the system control switching device according to the combination key disconnection information.

[0015] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0016] When multiple buttons are pressed simultaneously for a preset duration, a level inversion signal is obtained. This signal triggers a low-voltage device, which inverts its output signal. The inversion signal from the low-voltage device controls a switching device to shut down the system's main power supply, completing the system shutdown function. When the system shutdown is complete, the buttons are released, and a delay-based circuit determines the button's state to obtain a disconnection message. Based on this disconnection message, the system's main power supply is turned on by the switching device. By using multiple button combinations to enable a low-voltage device and trigger a conditional signal to shut down the device's main power, a power-on restart is achieved. This completely restores the system to normal operation, avoiding the cumbersome process of removing the built-in battery. It effectively restarts the system when it crashes, thus solving the technical problems of limited applicability and poor restart performance in existing restart methods.

[0017] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0019] Figure 1 This application provides a schematic diagram of the structure of a system restart device according to an embodiment of the present application.

[0020] Figure 2 A flowchart illustrating a system restart method provided in an embodiment of this application;

[0021] Figure 3 This is a schematic diagram of a system restart device provided in an embodiment of this application. Detailed Implementation

[0022] This application provides a system restart device, method, and apparatus, which solves the technical problem that the restart methods in the prior art have limited applicability and poor restart effect.

[0023] The acquisition, storage, use, and processing of data in this application all comply with the relevant provisions of national laws and regulations.

[0024] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. It should be understood that this application is not limited to the exemplary embodiments described herein. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. It should also be noted that, for ease of description, only the parts related to this application are shown in the accompanying drawings, not all of them.

[0025] Example 1

[0026] like Figure 1 As shown, a system restart device includes:

[0027] A button combination, wherein the button combination is disposed on the outside of the system device, and the button combination includes at least two buttons;

[0028] Specifically, the button combination includes at least two or more buttons. By setting the combination buttons externally, pressing the combination buttons simultaneously for a preset duration generates a level inversion signal. This should be understood as the switching state of a digital circuit changing from high to low, or from low to high; this transition process is called level inversion. The system only activates when all buttons in the combination are pressed for the preset duration, which can be 2-3 seconds or longer. This avoids accidental operation caused by accidental reset button presses and prevents ineffective restarting due to specific fault resets.

[0029] A system control switch device is provided, wherein the button combination is connected to the system control switch device, and the system control switch device is connected to the system main power supply to control the output of the system main power supply;

[0030] Specifically, when all buttons in the button combination are in the pressed state for a preset duration, the button combination acts on the system control switch to turn off the system main power output; when all buttons in the button combination are in the reset state, the system control switch turns on the system main power output.

[0031] Furthermore, the system restart device also includes a delay judgment circuit, which is connected to the button combination to judge the state of the button combination.

[0032] Furthermore, the system restart device also includes a low-voltage operating device, one end of which is connected to the delay judgment circuit and the other end of which is connected to the system control switch device, and controls the system control switch device according to the state judgment result of the button combination.

[0033] Furthermore, the low-voltage operating device includes any level-flipping device such as an OR device, MOSFET, diode, or transistor.

[0034] Furthermore, the system restart device also includes a TRI device, which is disposed between the low-voltage operating device and the system control switch device. The low-voltage operating device outputs a low level to the system control switch device through the TRI device to shut down the system main power supply output.

[0035] Specifically, a small functional circuit is composed of combination buttons, a delay judgment circuit, a low-voltage operating device, and a TRI device. When the combination buttons are pressed simultaneously for a preset duration, such as 3 seconds, the delay judgment circuit judges the voltage level generated by the combination buttons. If the voltage level generated by the combination buttons continues to reach the preset duration, it is judged as a normal voltage change, avoiding misjudgments caused by leakage or accidental touch. When the voltage level inversion signal generated by the combination buttons is confirmed, the low-voltage device is triggered, causing its output signal to also invert. The low-voltage device's output signal controls the system's control switch to shut down the system's main power supply, i.e., the power chip, thus powering off the electronic system. When the combination buttons are released, the battery is restored to power the power chip, restarting the electronic system. The wide-voltage input LDO provides power to the small functional circuit composed of the combination buttons, delay judgment circuit, low-voltage operating device, and TRI device to ensure the normal operation of the entire functional circuit.

[0036] like Figure 1 As shown, taking two batteries connected in series as an example, the electronic system requires a normal operating voltage of 6V to 8.4V for the battery, while the actual battery protection voltage is 5V. The normal operating voltage of the low-voltage device OR is 1.8V. When the battery voltage is lower than 6V, the low-voltage device OR can still operate normally, avoiding the impact of battery voltage fluctuations on the effective detection of buttons. The TRI output is in a high-impedance state, which can ensure normal operation under the difference between the high and low operating voltages of the power chip and the low-voltage device OR. The delay judgment circuit can detect the level value and duration of the button to determine whether the button is pressed normally or the level change is caused by leakage, avoiding false judgments caused by accidental touches. In this scheme, the OR device (logic OR gate circuit) only outputs a low level when multiple buttons (≥2) are pressed simultaneously. After passing through the TRI device, the output is low, turning off the power chip's external output VSYS, thereby achieving power-off of the electronic system.

[0037] The power supply chips involved in the embodiments of this invention are not limited to power supply chips, but also include switching devices such as PMOS / NMOS transistors, PNP / NPN transistors, mechanical relays, and solid-state relays. Furthermore, the descriptions and surface mount points involving the EN enable level (high level) and the shutdown level (low level) are not limited to this; they also include situations where the EN enable level is low and the shutdown level is high. Additionally, OP, OR, and TRI are merely descriptive logic terms and are not limited to specific device types; other devices such as MOSFETs, diodes, and transistors can also implement the same logical function.

[0038] By utilizing a combination of multiple buttons to enable low-voltage devices, triggering conditional signals, and shutting down the device's main power, the effect of power-on after a power outage is achieved. This completely restarts the system and restores it to normal operation, avoiding the cumbersome process of removing the built-in battery. It effectively restarts the system when it crashes, thus solving the technical problems of limited applicability and poor restart performance in existing restart methods.

[0039] This application's embodiments are applicable to situations requiring a power-off restart due to faults such as low battery voltage, non-damaged devices, or software logic errors. It effectively solves the problem of recovering from recoverable device faults, such as excessively high or low chip or ambient temperatures, device self-locking, low battery voltage causing device malfunction, and software logic errors leading to system crashes and restart issues.

[0040] Example 2

[0041] like Figure 2 As shown, this application provides a system restart method, the method comprising:

[0042] S1: When the combination keys are pressed simultaneously for more than a preset duration, a level inversion signal is obtained;

[0043] Furthermore, the low-voltage operating device is triggered by the level flip signal, which includes: detecting the level value of the combination key through a delay judgment circuit to determine the key level value; and determining whether the key level value is a normal level change.

[0044] S2: The low-voltage operating device is triggered by the level-flipping signal, and the low-voltage operating device flips the output signal;

[0045] S3: The system controls the switching device by using the flip signal output by the low-voltage working device to turn off the main power supply of the system and complete the system shutdown function;

[0046] S4: When the system shutdown function is completed, release the combination key and determine the state of the combination key through the delay judgment circuit to obtain the combination key disconnection information;

[0047] S5: Based on the disconnection information from the combination key, the system main power output is turned on via the system control switching device.

[0048] Furthermore, the level-flipping signal includes a low-level flip to a high-level flip and a high-level flip to a low-level flip.

[0049] Specifically, when the combination keys are pressed simultaneously for more than a preset time, a level flip signal is generated, triggering a low-voltage operating device such as an OR device. This causes the output signal of the OR device to flip as well. Voltage isolation is achieved through the TRI three-gate switch. The low-level signal output by the OR device is output through the TRI device. Since the power chip is enabled at a high level, the output low level does not meet the requirements of its operating voltage. Therefore, the power chip stops working, that is, the main power supply of the system is cut off, and the power chip's external output VSYS is turned off, thereby achieving the power cut-off of the electronic system.

[0050] When the system is shut down, releasing the combination buttons triggers a delay-based detection circuit that checks the button status. The OR device stops outputting, the battery resumes power supply, and the system control switch turns on the main power output, restarting the system. The power chip outputs VSYS, restoring power to the electronic system. This achieves the effect of powering off and then back on by using multiple button combinations to enable low-voltage devices, triggering conditional signals, and shutting down the main power supply. It completely restarts the system and restores it to normal operation, avoiding the cumbersome process of removing the built-in battery. This effectively restarts the system when it crashes.

[0051] Example 3

[0052] Based on the same inventive concept as the system restart method in Embodiment 2, this application also provides a system restart device, such as... Figure 3 As shown, the device includes:

[0053] The flip signal acquisition unit is used to acquire a level flip signal when the combination keys are pressed simultaneously for more than a preset time.

[0054] An output voltage switching unit is used to trigger a low-voltage operating device through the level switching signal, and the low-voltage operating device switches the output signal.

[0055] The power-off control unit is used to control the switching devices by using the flip-flop signal output by the low-voltage working device to shut down the main power supply of the system and complete the system shutdown function;

[0056] The combination key disconnection detection unit is used to determine the state of the combination key by releasing the combination key when the system shutdown function is completed, and obtain the combination key disconnection information by using a delay judgment circuit to judge the state of the combination key.

[0057] The restart unit is used to turn on the system main power output through the system control switching device according to the disconnection information of the combination key.

[0058] The system restart method and specific examples in the foregoing Embodiment 2 are also applicable to the system restart device in this embodiment. Through the foregoing detailed description of the system restart method, those skilled in the art can clearly understand the system restart device in this embodiment; therefore, for the sake of brevity, it will not be described in detail here. As for the device disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant details can be found in the method section.

[0059] 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 system restart device, characterized in that, The system restart device includes: A button combination, wherein the button combination is disposed on the outside of the system device, and the button combination includes at least two buttons; A system control switch device is provided, wherein the button combination is connected to the system control switch device, and the system control switch device is connected to the system main power supply to control the output of the system main power supply; Specifically, when all buttons in the button combination are in the pressed state for a preset duration, the button combination acts on the system control switch to turn off the system main power output; when all buttons in the button combination are in the reset state, the system control switch turns on the system main power output. A delay judgment circuit is connected to the key combination to judge the state of the key combination; A low-voltage operating device, one end of which is connected to the delay judgment circuit and the other end of which is connected to the system control switch device, controls the system control switch device according to the state judgment result of the button combination; The low-voltage operating devices include any level-flipping device such as an OR device, MOSFET, diode, or transistor; The TRI device is disposed between the low-voltage operating device and the system control switch device. The low-voltage operating device outputs a low level to the system control switch device through the TRI device to shut down the system main power supply output.

2. A system restart method, characterized in that, The method is applied to the system restart device according to claim 1, and the method includes: When the combination keys are pressed simultaneously for more than a preset duration, a level inversion signal is obtained; The low-voltage operating device is triggered by the level-flipping signal, and the low-voltage operating device flips the output signal. The system controls the switching devices by using the flip-flop signal output from the low-voltage operating device to turn off the main power supply of the system and complete the system shutdown function; When the system shutdown function is completed, the combination key is released, and the state of the combination key is judged by the delay judgment circuit to obtain the combination key disconnection information; Based on the disconnection information from the combination key, the system main power output is turned on via the system control switching device.

3. The system restart method as described in claim 2, characterized in that, The low-voltage operating device is triggered by the level-flipping signal, prior to which the following is included: The level value of the combination keys is detected by a delay judgment circuit to determine the level value of the keys; Determine whether the button level change is normal based on the button level value.

4. The system restart method as described in claim 3, characterized in that, The level-flipping signal includes flipping from low level to high level and flipping from high level to low level.

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