TW202111526A - Computer device and shutdown and reboot controlling method thereof - Google Patents

Abstract

A computer device and a shutdown and reboot controlling method thereof are provided. The method includes a logic circuit generating a first enable signal at a first level for a power generating circuit to generate a working power and a standby power for operation of a processing circuit, the processing circuit generating an abnormal signal when an temperature of an processor being higher than a predetermined temperature, the processing circuit generating the abnormal signal when a time period of an pressing signal corresponding to a power button being pressed being at a predetermined level for longer than a predetermined time length, the logic circuit generating the first enable signal at a second level when receiving the abnormal signal and the time period of the pressing signal at the predetermined level being longer than the predetermined time length, and the power generating circuit stopping generating the working power and the standby power according to the first enable signal at the second level.

Description

Computer device and its shutdown and restart method

The present invention relates to a computer device, and particularly a computer device with emergency shutdown and restart functions.

Computers have been widely used in people’s lives. Computers can handle many calculations that replace humans. However, computers still have their limits in use. For example, computers are processing too many software or programs at the same time, which leads to insufficient memory capacity. The computer crashes, and when the computer crashes, the user of the computer generally keeps pressing the power button of the computer, hoping to solve the crash problem by long pressing the power button to shut down the computer.

However, due to the different versions of the system-on-chip that the computer is equipped with, the specific version of the system-on-a-chip equipped on the computer’s motherboard cannot be shut down according to the user’s long press of the power button. Press the power button to trigger its shutdown operation. For this type of computer, once the computer crashes, if you want to repair it, the user can only unplug the computer's power cord after the crash to force the computer to stop because it did not receive the mains power. Under the condition of incomplete execution of the normal shutdown procedure, the computer will directly enter the complete shutdown state, and then plug the power cord again to provide the mains power to the computer to restart the computer, and unplug the power cord of the computer to force the computer to shut down. The computer suddenly loses The state of electricity may cause the computer to enter the complete shutdown state directly under the condition of incompletely executing the normal shutdown procedure, which may cause the computer to be damaged and unable to operate normally after restarting.

In one embodiment, a computer device with emergency shutdown and restart functions includes a power button, a processing circuit, a power generation circuit, and a logic circuit. The processing circuit is coupled to the power button, the processing circuit has an operating temperature, and the processing circuit generates an abnormal signal when the operating temperature is greater than a preset temperature, or a pressing signal generated when the corresponding source key is pressed is at a preset position An abnormal signal is generated when the accurate time length is greater than a preset time length. The power generation circuit is coupled to the processing circuit for generating a working power supply and a standby power supply for the processing circuit to operate according to a first enable signal at a first level, and is enabled according to the first enable signal at a second level The signal does not generate working power and standby power. The logic circuit is coupled to the processing circuit and the power generation circuit for generating a first enabling signal at the first level in a working mode of the computer device, detecting an abnormal signal, and judging that the pressing signal is at a preset level Whether the time length is greater than the preset time length, when the logic circuit detects the abnormal signal and the key signal is at the preset level for longer than the preset time length, the logic circuit generates the first enable signal control at the second level The power generating circuit stops generating a voltage signal to turn off the processing circuit, causing the computer device to switch from a working mode to a monitoring mode.

In one embodiment, a method for shutting down and restarting a computer device includes a logic circuit generating a first enable signal at a first level to a power generating circuit generating a working power and a standby power for a processing circuit to operate , The processing circuit generates an abnormal signal when an operating temperature is greater than a preset temperature, or when a press signal generated when a corresponding power button is pressed is at a preset level for longer than a preset period of time Abnormal signal, the logic circuit judges whether the abnormal signal is received, the logic circuit judges whether the time length of the pressing signal at the preset level is greater than the preset time length, when the logic circuit receives the abnormal signal and the pressing signal is at the preset level time length When longer than the preset time length, the logic circuit generates a first enable signal at a second level, and the power generation circuit stops generating working power and standby power to shut down the processing circuit according to the first enable signal at the second level To switch the computer device to a monitoring mode.

Please refer to FIGS. 1 to 3 together. The computer device 1 includes a logic circuit 11, a processing circuit 12, a power button 13 and a power generation circuit 14. As shown in FIG. 1, the power button 13 can be arranged in the casing of the computer device 1. As shown in FIG. 2, the processing circuit 12 and the logic circuit 11 are coupled to the power button 13, and the logic circuit 11 is coupled to the processing circuit 12 and the power generating circuit. 14, and the power generation circuit 14 is coupled to the processing circuit 12.

In one embodiment, the processing circuit 12 may be implemented by a System on a Chip (SoC). The processing circuit 12 has a high temperature detection unit for detecting an operating temperature, and the high temperature detecting unit compares the operating temperature and the operating temperature. The preset temperature is used to determine whether the operating temperature of the processing circuit 12 is greater than the preset temperature (step S07). When the operating temperature is greater than the preset temperature, the processing circuit 12 switches its operating state (the processing circuit 12 switches from normal operation to operating mode). It is a low power consumption mode, such as a frequency reduction mode, a sleep mode, a standby mode, etc.; wherein, when the processing circuit 12 is running in the standby mode, the processing circuit 12 receives and determines that it corresponds to the output generated when the power button 13 is pressed. Whether the duration of the pressing signal S1 at a preset level is less than a preset duration, and the duration of the pressing signal S1 generated when the processing circuit 12 determines that the power button 13 is pressed at a preset level is less than one For a preset length of time, the processing circuit 12 switches to operate in the operation mode; wherein the processing circuit 12 operates in the low power consumption mode and consumes less power than the processing circuit 12 operates in the operation mode) and generates an abnormal signal S2 to indicate that the processing circuit The operating temperature of 12 is abnormal.

For example, the aforementioned preset temperature may be 90 degrees, and the high temperature detection unit detects and compares the operating temperature with the preset temperature of 90 degrees to determine whether the operating temperature is greater than 90 degrees. When the high temperature detection unit determines that the operating temperature is greater than 90 degrees, the processing circuit 12 is triggered to generate an abnormal signal S2. Among them, the high temperature detection unit may be implemented in a state built in the processing circuit 12, or may be implemented in a state in which the high temperature detection unit is electrically connected to the processing circuit 12 and externally connected to the processing circuit 12. The detecting unit can detect the operating temperature of the processing circuit 12 by being disposed at a position adjacent to the processing circuit 12. In one embodiment, the high temperature detection unit is, for example, a thermistor that detects the temperature of its processor and determines that the detected operating temperature is higher than the preset temperature, that is, triggers the processing circuit 12 to generate the abnormal signal S2.

Moreover, since the power button 13 may be pressed by the user of the computer device 1, the processing circuit 12 determines whether the duration of the pressing signal S1 generated when the power button 13 is pressed at a predetermined level is greater than a predetermined time Length (step S08) to determine whether the user presses the power button 13 for a long time. When the processing circuit 12 determines that the time length of the pressing signal S1 at the preset level is greater than the preset time length, the processing circuit 12 generates an abnormal signal S2, indicating that the user of the computer device 1 presses the power button 13 for a long time. Among them, taking the pressing signal S1 at a low level to indicate that the power button 13 is pressed and the pressing signal S1 at a high level to indicate that the power button 13 is not pressed as an example, the aforementioned preset time length can be 4 seconds, and the processing circuit 12 can determine Whether the duration of the pressing signal S1 is at a low level is greater than 4 seconds to determine whether the user of the computer device 1 presses the power button 13 for a long time. Therefore, as shown in FIG. 3, when the processing circuit 12 determines that the operating temperature of the processing circuit 12 of the computer device 1 is abnormal by the high temperature detection unit (the determination result of step S07 is "Yes") or the processing circuit 12 determines that the pressure is pressed The signal S1 continues to be at the preset level for a period of time longer than the preset period of time (the judgment result of step S08 is "Yes"), and the processing circuit 12 is triggered to generate an abnormal signal S2 (step S09).

The power generation circuit 14 receives an external power source generated by at least one of a power supply and a selectively matched adapter (adapter), and according to the second one of the first level or the second level The enable signal S32 and a first enable signal S31 selectively convert the external power supply to provide the working power supply P1, the standby power supply P2, and the monitoring power supply for the computer device 1 to operate in one of the working mode, the standby mode, and the monitoring mode. At least one and at least one of a first voltage signal and a second voltage signal is generated for at least one of the processing circuit 12 and the logic circuit 11 to monitor the power generation state of the power generation circuit 14. When the computer device 1 is operating in the working mode, the second enabling signal S32 and the first enabling signal S31 are both at the first level, so that the power generating circuit 14 generates the working power required for the computer device 1 to operate in the working mode P1, standby power supply P2 and monitoring power supply, as well as the first voltage signal and the second voltage signal for the processing circuit 12 and the logic circuit 11 to monitor the power generation state; when the computer device 1 is operating in the standby mode, the second enable signal S32 is in the first Two levels and the first enable signal S31 is at the first level, so that the power generation circuit 14 generates the standby power P2, the monitoring power, and the logic circuit 11 to monitor the power generation state required for the computer device 1 to operate in the standby mode. The second voltage signal does not generate the working power supply P1 and the first voltage signal; when the first enabling signal S31 is at the second level, the power generation circuit 14 generates the monitoring power supply and does not generate the working power supply P1, the standby power supply P2, and the first voltage Signal and the second voltage signal to make the computer device 1 operate in the monitoring mode.

In one embodiment, the power generation circuit 14 includes a first power generation unit and a second power generation unit. The second power generation unit converts the external power source to generate the standby power source according to the first enable signal S31 having the first level. P2 and the second voltage signal, and the first power generating unit converts the standby power P2 generated by the second power generating unit according to the second enabling signal S32 with the first level to generate the working power P1 and the first voltage signal. When the first enable signal S31 is at the second level, the power generation circuit 14 generates monitoring power and does not generate the standby power P2, and the first power generation unit cannot convert and generate the working power because it does not receive the standby power P2. P1.

Based on the above, please refer to FIGS. 2 and 4 together. When the computer device 1 is operating in the working mode, the logic circuit 11 generates the first enable signal S31 at the first level (step S01) to the power generation circuit 14 and processes The circuit 12 generates the second enable signal S32 at the first level to the power generation circuit 14, and the power generation circuit 14 receives the second enable signal S32 and the first enable signal S31 with the first level. Generate a working power supply P1, a standby power supply P2 (step S02) and a monitoring power supply for the computer device 1 to operate in the working mode, and a first voltage signal and a second voltage signal for the processing circuit 12 and the logic circuit 11 to monitor the power generation state, and logic The circuit 11 judges whether the abnormal signal S2 from the processing circuit 12 is received (step S03), and the logic circuit 11 further judges whether the time length of the pressing signal S1 at the preset level is greater than the preset time length (step S04). 4 is an example in which the logic circuit 11 executes steps S03 and S04 sequentially, but the present invention is not limited to this. The logic circuit 11 can also execute steps S03 and S04 at the same time or execute step S04 first and then execute step S03.

When the logic circuit 11 detects the abnormal signal S2 (the judgment result of step S03 is "Yes"), it means that the operating temperature of the processing circuit 12 is abnormal, or the processing circuit 12 determines that the power button 13 has been pressed for longer than A preset time length and the processing circuit 12 has switched to operate in a low power consumption mode; at this time, the logic circuit 11 will further select according to the judgment result of whether the pressing signal S1 is at the preset level for longer than the preset time length Whether to generate the first enable signal S31 at the second level. When the logic circuit 11 detects that the abnormal signal S2 is at the same time and judges that the time length of the pressing signal S1 at the preset level is greater than the preset time length (the judgment result of step S04 is "Yes"), it means that the power button 13 is affected. The user presses for a long time to cause the processing circuit 12 to switch to operate in the low power consumption mode and generate an abnormal signal S2. At this time, the logic circuit 11 performs an emergency processing operation, that is, the logic circuit 11 generates the first enable signal at the second level S31 gives the power generation circuit 14 (step S05) so that the power generation circuit 14 generates only the monitoring power according to the first enable signal S31 at the second level and stops generating the working power P1 and the standby power P2 (step S06) and the first enable signal S31. The voltage signal and the second voltage signal, so that the processing circuit 12 cannot operate in the low power consumption mode because it does not receive the standby power P2 and then switches to the off state, causing the computer device 1 to switch from the working mode to a monitoring mode.

Based on this, when the processing circuit 12 does not support the function of entering the monitoring mode directly according to the user's long press of the power button 13 to normally perform the shutdown operation of the computer device 1, it can be used with the logic circuit 11 to share the high temperature detection function. After ensuring that the processing circuit 12 has been switched to operate in the low power consumption mode, the emergency processing operation method can still be used to control the power generation circuit 14 urgently without generating the working power supply P1 and the standby power supply P2 by pressing the power button 13 for a long time. , In order to force the computer device 1 to switch to the monitoring mode because it has not received the working power P1 and the standby power P2.

In one embodiment, when the computer device 1 is operating in the monitoring mode, the power generation circuit 14 provides monitoring power to the computer device 1 for the logic circuit 11 to detect and determine whether to receive the pressing signal S1 at a preset level (step S10 ), if the logic circuit 11 receives the pressing signal S1 at the preset level when the computer device 1 is operating in the monitor mode (the judgment result is "Yes"), the logic circuit 11 generates and transmits the first enable signal S31 to the power supply The generating circuit 14 causes the power generating circuit 14 to generate the standby power P2 again, and the processing circuit 12 also initializes because it receives the standby power P2 again, and again generates the second enable signal S32 to the power generating circuit 14 to make the power generating circuit 14 provides the working power P1 again (that is, the computer device 1 is switched to operate in the working mode) and the processing circuit 12 is switched to operate in the working mode.

In one embodiment, the aforementioned first level and second level may be high level (ie logic "1") and low level (ie logic "0"), respectively. The logic circuit 11 performs steps S01 and S05. The first enabling signal S31 with a low level and the first enabling signal S31 with a high level are respectively sent; the abnormal signal S2 may have a low level, and the processing circuit 12 judges that the operating temperature is not greater than the preset in the high-temperature detection unit When the temperature and the processing circuit 12 does not receive the pressing signal S1 at the preset level for a time longer than the preset time length, the processing circuit 12 generates a normal signal without generating an abnormal signal S2, where the normal signal has a high level, and the logic circuit 11 In step S03, it is judged whether an abnormal signal S2 with a low level is received.

In one embodiment, when the logic circuit 11 detects the abnormal signal S2 but does not determine that the time length of the pressing signal S1 at the preset level is greater than the preset time length (the judgment result of step S04 is "No"), it means The operating temperature of the processing circuit 12 is abnormal and it switches to the low power consumption mode but the user does not long press the power button 13; at this time, the logic circuit 11 continues to generate the first enable signal S31 at the first level (step S01), Make the power generation circuit 14 continue to generate the working power P1 and the standby power P2 (step S02), that is, when the logic circuit 11 does not determine that the pressing signal S1 is at the preset level for longer than the preset time length, the logic circuit 11 does not The power generation circuit 14 is controlled to stop generating the standby power P2, so the computer device 1 will not switch to the monitoring mode because it does not receive the standby power P2.

In one embodiment, as shown in FIG. 2, the processing circuit 12 includes a central processing unit 121 and a platform path controller 122. When the computer device 1 is in the working mode, the platform path controller 122 generates a first level The second enable signal S32 is used to control the power generation circuit 14 to generate the working power P1 for the computer device 1 to operate in the working mode. When the platform path controller 122 generates the second enable signal S32 with the second level to control the power generation The circuit 14 does not generate the working power supply P1, but makes the computer device 1 operate in the standby mode; when the logic circuit 11 generates the first enable signal S31 at the first level, the power generation circuit 14 generates the standby power supply P2 for the computer When the device 1 operates in one of the working mode and the standby mode, when the logic circuit 11 generates the first enable signal S31 at the second level, the power generating circuit 14 is controlled according to the first enable signal S31 at the second level. The enable signal S31 stops generating the standby power supply P2 and the working power supply P1 (step S06), so that the platform path controller 122 and the central processing unit 121 enter the shutdown state because they do not receive the standby power supply P2 and the working power supply P1, and the computer device 1 is also switched off The working mode is switched to the monitoring mode.

Furthermore, before the platform path controller 122 enters the off state, that is, before the logic circuit 11 has generated the first enable signal S31 with the second level to control the power generation circuit 14 to stop generating the standby power P2, when the logic circuit 11 detects When the abnormal signal S2 is detected and the time length of the key signal S1 at the preset level is greater than the preset time length, please refer to FIGS. 2 and 5 together. The logic circuit 11 further generates a shutdown signal S6 to the platform path controller 122, and The logic circuit 11 outputs the shutdown signal S6 through the output terminal 112. The output terminal 112 is different from the output terminal 111 that outputs the first enable signal S31, so that the platform path controller 122 executes the corresponding shutdown operation according to the shutdown signal S6, for example The platform path controller 122 generates the second enable signal S32 with the second level, and then controls the power generation circuit 14 to stop generating the working power P1. However, when the computer device 1 crashes, the central processing unit 121 and the platform path controller 122 cannot normally switch to the off state and control the computer device 1 to restart to reinitialize to solve the problem of the computer device 1 crashing. According to the logic circuit 11, the computer device 1 controls the power generation circuit 14 to stop generating the working power supply P1 and the standby power supply P2 and switches to the monitoring mode. When the computer device 1 is down, its central processing unit 121 or its processing circuit 12 cannot be smoothly It enters the shutdown state and cannot be initialized again, because it does not support the function of normally executing the shutdown operation of the computer device 1 according to the user's long press of the power button 13, and it cannot be repaired without the user plugging and unplugging the power cord. The computer device 1 crashes. In this case, the logic circuit 11 determines that the key signal S1 is at the preset level for longer than the preset time period. The aforementioned emergency processing operation after detecting the high temperature is executed to control the computer device 1 to enter Monitoring mode, that is, the processing circuit 12 including the central processing unit 121 are all turned off, and the entire computer device 1 can only detect the pressing signal S1 at the preset level by monitoring the power operation of the logic circuit 11 Input monitoring mode, without the user plugging or unplugging the power cord, the computer device 1 can restart the computer device 1 only by detecting the pressing signal S1 at the preset level based on the logic circuit 11 Initializing the processing circuit 12 of the computer device 1 includes reinitializing the central processing unit 121 and the platform path controller 122 so as to resolve the crash problem of the computer device 1.

Therefore, when the platform path controller 122 of the computer device 1 cannot turn off the processing circuit 12 of the computer device 1 according to the long press of the power button 13, the logic circuit 11 can control the power generation circuit 14 by performing emergency processing operations. Stop generating the standby power P2 and the working power P1 for the operation of the processing circuit 12 (including the central processing unit 121 and the platform path controller 122) to force the computer device 1 to switch to the monitoring mode. In addition, since the platform path controller 122 and the central processing unit 121 are both off, the computer device 1 is in a low-power monitoring mode, compared to the advanced configuration and power interface (ACPI) The defined soft-off mode (soft-off, S5/G2), the power consumption of the computer device 1 in the low-power monitoring mode is less than the power consumption of the computer device 1 in the soft-off mode. The mechanism of controlling the shutdown of the computer device 1 by the logic circuit 11 reduces the power consumption of the computer device 1 in the soft shutdown mode, and the computer device 1 in the crash cannot be completely shut down by soft shutdown. The circuit 12 cannot enable the computer device 1 in a crash to restart the computer device 1 without the user having to plug and unplug the power cord.

In one embodiment, when the computer device 1 is in the monitoring mode, the central processing unit 121 and the platform path controller 122 are also in the off state because they did not receive the working power P1 and the standby power P2. The logic circuit 11 can still operate normally when the computer device 1 is in the monitoring mode. In the monitoring mode, the logic circuit 11 determines that the pressing signal S1 is at the preset level (step S10) to determine whether the user of the computer device 1 Press the power button 13 to restart the computer device 1. When the logic circuit 11 determines that the pressing signal S1 with a preset level is input (the result of step S10 is "Yes"), it means that the user of the computer device 1 presses the power button 13, and the logic circuit 11 generates a first The first enable signal S31 of the first level (step S11) is used to control the power generation circuit 14 to generate the standby power P2, so that the platform path controller 122 receives the standby power P2 again for initialization to generate the first level of the first power again. The two enable signal S32 further controls the power generation circuit 14 to generate the working power P1 for the operation of the central processing unit 121 and the platform path controller 122, and the logic circuit 11 also sends a reset signal S5 to the processing circuit 12 through the output terminal 113 ( Step S12), make the processing circuit 12 perform a reset operation, the central processing unit 121 and the platform path controller 122 can set the setting parameters of each register or the temporarily stored data to restore to the default value according to the reset signal S5. In detail, when the platform path controller 122 receives the standby power P2 and the reset signal S5 again, it initializes itself with the reset setting parameters or temporary data to regenerate the second enable signal with the first level. In S32, the power generating circuit 14 is further controlled to provide the working power P1 required by the computer device 1 to enter the working mode. Similarly, the central processing unit 121 also restarts with preset parameters after receiving the working power P1; After the reset operation is completed, the CPU 121 and the platform path controller 122 will start the computer device 1 to prevent the CPU 121 and the platform path controller 122 from not returning to the default settings after being powered off. When the computer device 1 is restarted, the computer device 1 fails to return to the default setting, which causes the computer device 1 to crash again.

In one embodiment, the working power P1 generated by the power generating circuit 14 corresponds to a main power on the motherboard of the computer device 1 for the central processing unit 121 and the platform path controller 122 to operate (for the convenience of description) , Hereinafter referred to as the working power P1) and the working power P1 is generated by converting the standby power P2 (standby power) generated by the power generating circuit 14. The power generating circuit 14 receives the first enable at the second level The signal S31 stops generating the aforementioned standby power supply P2, and the associated stop power generation circuit 14 generates the working power supply P1, which causes the central processing unit 121 and the platform path controller 122 to enter the off state, causing the computer device 1 to shut down and enter the monitoring mode ; Furthermore, when the computer device 1 is in the monitoring mode, the logic circuit 11 operates according to the monitoring power supply provided by the motherboard of the computer device 1, and since the monitoring power supply of the computer device 1 is only a small number related to the detection and determination of the pressing signal S1 The related circuits at the preset level (including the logic circuit 11, the related circuit connecting the logic circuit 11 and the power button 13, and the power button 13 related circuit that generates the pressing signal S1 according to the trigger, etc.) are used, so the monitoring power supply of the computer device 1 The power consumption is less than the power consumption of the aforementioned standby power supply P2.

In an embodiment, the logic circuit 11 may be implemented by a microcontroller (MCU).

In summary, according to an embodiment of the computer device and its shutdown and restart method in this case, when the processing circuit or other components of the computer device cannot normally perform shutdown operations to enter the monitoring mode according to the user's long press of the power button , The logic circuit can urgently shut down the processing circuit to the off state by means of emergency processing operations, so as to force the computer device to shut down to the monitoring mode, so as to solve the problem that the user can not long press the power button to make the processing when the computer device is down. The circuit is switched to the off state and the computer device cannot be restarted normally to perform a boot process to reset the processing circuit, so as to correct the wrong setting parameters in the processing circuit that may cause the computer device to crash. In addition, the logic circuit can control the processing circuit to reset the boot program in the restart operation after the computer device is shut down and enter the monitoring mode, so as to avoid the occurrence of the processing circuit that does not return to the preset value after entering the monitoring mode and the computer After the device is restarted, it still executes the boot process with the wrong setting parameters, which again causes the computer device to crash.

Although this case has been disclosed by the examples above, it is not intended to limit the case. Anyone with ordinary knowledge in the technical field can make some changes and modifications without departing from the spirit and scope of the case. Therefore, the scope of protection of this case The scope of the patent application attached hereafter shall prevail.

1: computer device 11: Logic circuit 111: output 112: output 113: Output 12: Processing circuit 121: Central Processing Unit 122: Platform Path Controller 13: Power button 14: Power generation circuit S1: Press signal S2: Abnormal signal S32: The second enabling signal S31: The first enabling signal S5: Reset signal S6: Shutdown signal P1: Working power supply P2: Standby power S01-S12: steps

[Fig. 1] is a schematic diagram of the appearance of an embodiment of the computer device according to the present invention. [Figure 2] is a block diagram of an embodiment of the computer device according to the present invention. [Figure 3] is a flowchart of an embodiment of the abnormal signal generation method of the processing unit according to the present invention. [Figure 4] is a flowchart of an embodiment of the shutdown and restart method of the computer device according to the present invention. [Fig. 5] is a block diagram of an implementation aspect of the computer device in Fig. 1. [Fig.

1: computer device

11: Logic circuit

12: Processing circuit

121: Central Processing Unit

122: Platform Path Controller

13: Power button

14: Power generation circuit

S1: Press signal

S2: Abnormal signal

S31: The first enabling signal

S32: The second enabling signal

P1: Working power supply

P2: Standby power

Claims (10)

A computer device with emergency shutdown and restart functions, including: A power button; A processing circuit coupled to the power button, the processing circuit has an operating temperature, and is used to generate an abnormal signal when the operating temperature is greater than a preset temperature, or to generate a pressing when the corresponding power button is pressed The abnormal signal is generated when the signal is at a predetermined level for longer than a predetermined length of time; A power generation circuit, coupled to the processing circuit, is used to generate a working power supply and a standby power supply for the processing circuit to operate according to a first enable signal at a first level, and according to a second level The first enabling signal does not generate the working power source and the standby power source; and A logic circuit, coupled to the processing circuit and the power generation circuit, is used to generate the first enable signal at the first level in a working mode of the computer device, detect the abnormal signal, and determine Whether the time length of the pressing signal at the preset level is greater than the preset time length, when the logic circuit detects the abnormal signal and the time length of the key signal at the preset level is greater than the preset time length , The logic circuit generates the first enable signal at the second level to control the power generation circuit to stop generating the working power and the standby power to turn off the processing circuit, causing the computer device to switch from the working mode to a Monitoring mode. The computer device according to claim 1, wherein the processing circuit includes a central processing unit and a platform path controller, wherein the power generation circuit generates the standby for the platform path controller to operate according to the first enable signal The power supply enables the platform path controller to generate a second enable signal according to the standby power, and the power generation circuit generates a second enable signal according to the second enable signal for the CPU and the platform path controller to operate in the working mode For the working power supply, when the logic circuit generates the first enable signal at the second level, the power generation circuit stops generating the standby power, so that the platform path controller shuts down and stops generating the second activation signal Can signal to turn off the central processing unit, causing the computer device to switch to the monitoring mode. The computer device according to claim 2, wherein the logic circuit operates according to the monitoring power provided by the motherboard of the computer device in the monitoring mode, and the logic circuit determines in the monitoring mode that the corresponding power button is pressed Whether the generated another pressing signal is at the preset level. The computer device according to claim 3, wherein when the pressing signal is at the preset level, the logic circuit generates the first enable signal at the first level to activate the platform path controller and the center The processor enables the computer device to switch from the monitoring mode to the working mode. The computer device according to claim 4, wherein after the logic circuit generates the first enable signal at the first level, the logic circuit generates a reset signal to the central processing unit and the platform path controller , Enabling the central processing unit and the platform path controller to first perform a reset operation according to the reset signal, and the central processing unit and the platform path controller will start one of the computer devices after the reset operation is performed Operation, the computer device enters the working mode. A method for shutting down and restarting a computer device, including: A logic circuit generates a first enable signal at a first level in a working mode to a power generation circuit to generate a working power supply and a standby power supply for a processing circuit to operate; The processing circuit generates an abnormal signal when an operating temperature is greater than a preset temperature, or when a pressing signal generated when a corresponding power button is pressed is at a preset level for longer than a preset period of time The abnormal signal; The logic circuit judges whether the abnormal signal is received; The logic circuit determines whether the time length during which the pressing signal is at the predetermined level is greater than the predetermined time length; When the logic circuit receives the abnormal signal and the time length of the pressing signal at the predetermined level is greater than the predetermined time length, the logic circuit generates the first enable signal at a second level; and The power generating circuit stops generating the working power and the standby power according to the first enabling signal at the second level to turn off the processing circuit, so that the computer device is switched from the working mode to a monitoring mode. The shutdown and restart method of a computer device according to claim 6, wherein the steps of the power generation circuit generating the working power and the standby power for the processing circuit to operate include: The power generation circuit generates the standby power for the operation of a platform path controller of the processing circuit according to the first enable signal at the first level; The platform path controller generates a second enable signal according to the operation of the standby power; and The power generating circuit generates the working power according to the second enabling signal for the platform path controller and a central processing unit of the processing circuit to operate in the working mode; Wherein, the power generating circuit stops generating the working power and the standby power according to the first enabling signal at the second level, and the power generating circuit is based on the first enabling signal at the second level. It can signal to stop generating the standby power to shut down the platform path controller, so that the central processing unit shuts down without receiving the working power. The shutdown and restart method of the computer device described in claim 7 further includes: In the monitoring mode, the logic circuit operates according to the monitoring power provided by the motherboard of the computer device to determine whether another pressing signal generated when the corresponding power button is pressed is at the preset level. The shutdown and restart method of the computer device as described in claim 8, further including: When the pressing signal is at the preset level, the logic circuit generates the first enable signal at the first level to activate the platform path controller and the central processing unit, so that the computer device is in the monitoring mode Switch to this working mode. The shutdown and restart method of a computer device according to claim 9, further comprising: after the logic circuit generates the first enable signal at the first level, the logic circuit generates a reset signal to the central processing unit And the path controller of the platform; The central processing unit and the platform path controller perform a reset operation according to the reset signal; and The central processing unit and the platform path controller execute a boot operation of the computer device after executing the reset operation.

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