WO2022110931A1 - Power source control module and control system for dual computers, and medical imaging equipment - Google Patents

Power source control module and control system for dual computers, and medical imaging equipment Download PDF

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Publication number
WO2022110931A1
WO2022110931A1 PCT/CN2021/114578 CN2021114578W WO2022110931A1 WO 2022110931 A1 WO2022110931 A1 WO 2022110931A1 CN 2021114578 W CN2021114578 W CN 2021114578W WO 2022110931 A1 WO2022110931 A1 WO 2022110931A1
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WO
WIPO (PCT)
Prior art keywords
computer
power source
source control
power
ups
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PCT/CN2021/114578
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French (fr)
Inventor
Zhida Chen
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Siemens Shanghai Medical Equipment Ltd.
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Publication of WO2022110931A1 publication Critical patent/WO2022110931A1/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/28—Supervision thereof, e.g. detecting power-supply failure by out of limits supervision
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/30—Means for acting in the event of power-supply failure or interruption, e.g. power-supply fluctuations
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J1/00—Circuit arrangements for dc mains or dc distribution networks
    • H02J1/08—Three-wire systems; Systems having more than three wires
    • H02J1/084—Three-wire systems; Systems having more than three wires for selectively connecting the load or loads to one or several among a plurality of power lines or power sources
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems

Definitions

  • the present invention relates to the field of computer technologies, and in particular, to a power source control module for dual computers and a power source control system for dual computers.
  • both a primary computer and a secondary computer are started up; and when the power switch at the power input end is opened, that is, a power-off button is pressed, both the primary computer and the secondary computer are shut down.
  • a primary computer can perform a startup or shutdown response properly according to a command, while a secondary computer cannot perform the startup or shutdown response properly according to the command.
  • the present invention provides a power source control module for dual computers, a power source control system for dual computers, and medical imaging equipment, so that a secondary computer can perform a startup or shutdown response properly according to a command.
  • the present invention provides a power source control module for dual computers, including:
  • a power source control circuit for a primary computer configured to detect a power input end and a port of the primary computer, electrically connect, when detecting a voltage output in either of the power input end and the port of the primary computer, the primary computer to an external uninterruptible power supply (UPS) to power on the primary computer, and electrically disconnect, when detecting no voltage output in both the power input end and the port of the primary computer, the primary computer from the UPS to power off the primary computer;
  • UPS uninterruptible power supply
  • a power source control circuit for a secondary computer configured to detect the power input end, the port of the primary computer, and electrical connection between the primary computer and the UPS, electrically connect, when detecting that a first condition is satisfied, the secondary computer to the UPS to power on the secondary computer, and electrically disconnect, when detecting that the first condition is not satisfied, the secondary computer from the UPS to power off the secondary computer, where the first condition is that there is a voltage output in both the power input end and the port of the primary computer, and that the primary computer is electrically connected to the UPS.
  • the power source control circuit for the secondary computer is further configured to electrically connect, when detecting that a second condition is satisfied, the secondary computer to the UPS, where the second condition is that there is a voltage output in a port of the secondary computer; and is further configured to detect whether the second condition is satisfied when detecting whether the first condition is satisfied, and perform the operation of electrically disconnecting the secondary computer from the UPS when detecting that neither the first condition nor the second condition is satisfied.
  • the power source control circuit for the primary computer is implemented by a first OR gate, two input ends of the first OR gate are respectively connected to a status output of the power input end and a status output of the port of the primary computer, and an output end of the first OR gate controls electrical connection between the primary computer and the UPS.
  • the power source control circuit for the secondary computer includes a first AND gate, where,
  • the power source control circuit for the secondary computer includes a second AND gate and a second OR gate, where,
  • the other input end of the second OR gate is connected to a status output of the port of the secondary computer, and an output end of the second OR gate controls the electrical connection between the secondary computer and the UPS.
  • the power source control circuit for the primary computer includes a control loop, a switch contact of a first relay, and a switch contact of a second relay, where,
  • control loop includes a control switch and a coil of the first relay that are serially connected;
  • the UPS, the switch contact of the first relay, and the primary computer are serially connected sequentially, to form a first connecting line;
  • the UPS, the switch contact of the second relay, and the primary computer are serially connected sequentially, to form a second connecting line;
  • a coil of the second relay is connected to the port of the primary computer.
  • the power source control circuit for the secondary computer includes a switch contact of a third relay, a coil of a fourth relay, and a switch contact of the fourth relay, where,
  • the switch contact of the third relay and the coil of the fourth relay are first serially connected and then connected in parallel to both ends of the coil of the first relay;
  • an end of the switch contact of the fourth relay is connected to a first point of connection of the first connecting line, and the first point of connection is located between the switch contact of the first relay and the primary computer;
  • a coil of the third relay is connected to the port of the primary computer.
  • the power source control circuit for the secondary computer further includes a switch contact of a fifth relay, where,
  • the switch contact of the fifth relay is connected in parallel to both ends of the switch contact of the fourth relay;
  • a coil of the fifth relay is connected to the port of the secondary computer.
  • the present invention provides a power source control system for dual computers, including a power switch at a power input end, a UPS, a primary computer, a secondary computer, and a power source control module for dual computers according to any of the embodiments in the present invention, where,
  • an end of the UPS is connected to the power switch, and the other end of the UPS is connected to the power source control module for dual computers.
  • the power source control system for dual computers further includes an alternating current-direct current (AC-DC) conversion circuit, where an input end of the AC-DC conversion circuit is connected to the power switch, and an output end of the AC-DC conversion circuit is connected to a port of the primary computer.
  • AC-DC alternating current-direct current
  • the present invention provides medical imaging equipment, including a power source control system for dual computers according to any of the embodiments in the present invention.
  • a power source control system for dual computers and medical imaging equipment that are provided in the present invention, there is no switch directly connecting a UPS and a secondary computer in a power source control circuit for the secondary computer, that is, the secondary computer is not powered on by the UPS directly through the direct connecting switch.
  • power-on/off of the secondary computer is controlled based on whether there is a voltage output in a port of a primary computer and electrical connection between the UPS and the primary computer, so that power-on/off of the secondary computer is consistent with that of the primary computer. In this way, the secondary computer can properly run a startup or shutdown command during a startup or shutdown.
  • FIG. 1 is a schematic structural diagram of a power source control module for dual computers according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a logic circuit of a power source control circuit for a primary computer according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a logic circuit of a power source control circuit for a secondary computer according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of a logic circuit of a power source control circuit for a secondary computer according to another embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a circuit when a power source control module for dual computers is implemented based on a relay according to an embodiment of the present invention
  • FIG. 6 is a schematic structural diagram of a power source control system for dual computers according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a power source control system for dual computers according to another embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of medical imaging equipment according to an embodiment of the present invention.
  • the applicant of the present invention discovers that, in a dual-computer system, a UPS is usually used for supplying power to a primary computer and a secondary computer, and a direct connecting switch is usually disposed between the secondary computer and the UPS.
  • the secondary computer tends to improperly run a startup or shutdown command when being shut down during a startup or being started up during a shutdown.
  • the primary computer can properly run a startup or shutdown command due to an internal preset logic. Therefore, if power-on/off of the secondary computer is kept consistent with that of the primary computer, the secondary computer can also properly run a startup or shutdown command during a startup or shutdown.
  • a power source control module for dual computers includes:
  • a power source control circuit 201 for a primary computer configured to detect a power input end and a port of the primary computer, electrically connect, when detecting a voltage output in either of the power input end and the port of the primary computer, the primary computer to a UPS to power on the primary computer, and electrically disconnect, when detecting no voltage output in both the power input end and the port of the primary computer, the primary computer from the UPS to power off the primary computer;
  • a power source control circuit 202 for a secondary computer configured to detect the power input end, the port of the primary computer, and electrical connection between the primary computer and the UPS, electrically connect, when detecting that a first condition is satisfied, the secondary computer to the UPS to power on the secondary computer, and electrically disconnect, when detecting that the first condition is not satisfied, the secondary computer from the UPS to power off the secondary computer, where the first condition is that there is a voltage output in both the power input end and the port of the primary computer, and that the primary computer is electrically connected to the UPS.
  • the secondary computer is not powered on by the UPS directly through the direct connecting switch.
  • power-on/off of the secondary computer is controlled based on whether there is a voltage output in the port of the primary computer and electrical connection between the UPS and the primary computer, so that power-on/off of the secondary computer is consistent with that of the primary computer. In this way, the secondary computer can properly run a startup or shutdown command during a startup or shutdown.
  • the power source control circuit for the secondary computer is further configured to electrically connect, when detecting that a second condition is satisfied, the secondary computer to the UPS, where the second condition is that there is a voltage output in a port of the secondary computer.
  • the power source control circuit for the secondary computer is further configured to detect whether the second condition is satisfied when detecting whether the first condition is satisfied, and perform the operation of electrically disconnecting the secondary computer from the UPS when detecting that neither the first condition nor the second condition is satisfied.
  • the secondary computer when detecting that either the first condition or the second condition is satisfied, the secondary computer is electrically connected to the UPS to be powered on, and when detecting both the first condition and the second condition are not satisfied, the secondary computer is electrically disconnected from the UPS to be powered off.
  • the power source control circuit for the primary computer may be implemented by a logic circuit of an OR gate.
  • OR gate 1 two input ends of the OR gate (noted as OR gate 1) are respectively connected to a status output of the power input end and a status output of the port of the primary computer, and an output end of the OR gate 1 controls electrical connection between the primary computer and the UPS.
  • an input of the OR gate 1 may be denoted as 1 and 1, or 1 and 0, there is a voltage output in the output end of the OR gate 1, that is, an output of the OR gate 1 may be denoted as 1.
  • the primary computer is electrically connected to the UPS to be powered on.
  • the input of the OR gate 1 may be denoted as 0 and 0, there is no voltage output in the output end of the OR gate 1, that is, the output of the OR gate 1 may be denoted as 0.
  • the primary computer is electrically disconnected from the UPS to be powered off, thereby implementing the function of the power source control circuit for the primary computer.
  • Manner 1 An AND gate is used to implement the power source control circuit for the secondary computer.
  • an OR gate on the left is the OR gate 1 for implementing the power source control circuit for the primary computer.
  • the OR gate implements the power source control circuit for the secondary computer with an AND gate (noted as AND gate 1) on the right.
  • AND gate 1 Three input ends of the AND gate 1 are respectively connected to the output end of the OR gate 1, the status output of the power input end, and the status output of the port of the primary computer.
  • An output end of the AND gate 1 controls electrical connection between the secondary computer and the UPS. It is to be seen that when an output of the power input end, an output of the port of the primary computer, and the output of the OR gate 1 are all 1, the secondary computer is electrically connected to the UPS to be powered on. Otherwise, the secondary computer is electrically disconnected from the UPS to be powered off, thereby implementing the function of the power source control circuit for the secondary computer.
  • Manner 2 An AND gate and an OR gate are used to implement the power source control circuit for the secondary computer.
  • manner 2 may be used to implement the power source control circuit for the secondary computer.
  • an OR gate on the left is the OR gate 1 for implementing the power source control circuit for the primary computer
  • an AND gate in the middle is noted as AND gate 2
  • an OR gate on the right is noted as OR gate 2.
  • Three input ends of the AND gate 2 are respectively connected to the output end of the OR gate 1, the status output of the power input end, and the status output of the port of the primary computer.
  • An output end of the AND gate 2 serves as an input end of the OR gate 2.
  • the other input end of the OR gate 2 is connected to a status output of a port of the secondary computer. That is, when there is a voltage output in the port of the secondary computer, an input from the other input end to the OR gate 2 is 1.
  • the secondary computer When the outputs of the power input end, the port of the primary computer, and the OR gate 1 are all 1, that is, an output of the AND gate 2 is 1, or when there is a voltage output in the port of the secondary computer, that is, an output is 1, the secondary computer is electrically connected to the UPS to be powered on.
  • the outputs of the power input end, the port of the primary computer, and the OR gate 1 are not all 1, that is, the output of the AND gate 2 is 0, and at the same time, there is no voltage output in the port of the secondary computer, that is, the output is 0, the secondary computer is electrically disconnected from the UPS to be powered off, thereby implementing the function of the power source control circuit for the secondary computer.
  • a relay may also be used for implementing the power source control module for dual computers.
  • a relay includes a coil and a switch contact. Opening or closing of the switch contact depends on whether there is a voltage output in the coil.
  • a circuit structure of the power source control module for dual computers is implemented as follows:
  • the power source control circuit for the primary computer includes a control loop, a switch contact K12 of a first relay, and a switch contact K22 of a second relay, where,
  • control loop includes a control switch K0 and a coil K11 of the first relay that are serially connected;
  • a coil K21 of the second relay is connected to the port of PC1 (for example, a port COM1 shown in FIG. 5) .
  • the power source control circuit for the secondary computer includes a switch contact K32 of a third relay, a coil K41 of a fourth relay, and a switch contact K42 of the fourth relay, where,
  • K32 and K41 are first serially connected and then connected in parallel to both ends of K11;
  • an end of K42 is connected to a first point of connection of the first connecting line, and the first point of connection is located between K12 and PC1;
  • a coil K31 of the third relay is connected to the port of PC1 (for example, the port COM1 shown in FIG. 5) .
  • the power source control circuit for the secondary computer may further include a switch contact K52 of a fifth relay, where,
  • K52 is connected in parallel to both ends of K42;
  • a coil K51 of the fifth relay is connected to the port of the secondary computer PC2 (for example, a port COM2 shown in FIG. 5) .
  • a startup command is inputted first, that is, after a power switch K of a power input end 601 on the left is switched to "power on” , K12 is closed and PC2 starts up after detecting a signal rising edge. At the same time, PC1 starts up after detecting a startup signal.
  • a shutdown occurs during the startup, that is, the power switch of the power input end is opened and switched to "power off” , as described before, PC1 is shut down normally.
  • PC1 is powered off after the shutdown, there is no voltage output in the port COM1 of PC1. As a result, the following will occur:
  • switch contacts K22, K12, and K42 are all opened after a shutdown during a startup.
  • PC2 is also powered off like PC1 and shuts down. Therefore, PC2 also properly runs a shutdown command during the startup.
  • a shutdown command is inputted, that is, after the power switch K of the power input end 601 on the left is switched to "power off” , PC2 shuts down. At the same time, PC1 shuts down after detecting a shutdown signal.
  • PC1 can start up normally after the shutdown. As PC1 starts up after the shutdown, PC1 is first powered off and then powered on.
  • a power source control system for dual computers is further provided.
  • the system includes:
  • An end of the UPS 702 is connected to the power switch 701, and the other end of the UPS 702 is connected to the power source control module 705 for dual computers.
  • another power source control system for dual computers is provided.
  • this system further includes an AC-DC conversion circuit 801, where an input end of the AC-DC conversion circuit 801 is connected to the power switch 701, and an output end of the AC-DC conversion circuit 801 is connected to a port of the primary computer 703.
  • a person of skill in the art may apply the technical principles taught in the present invention to various application scenarios of dual computers according to actual application requirements.
  • the present invention may be applied to the field of medical imaging, to which the present invention is not limited.
  • FIG. 8 is a schematic structural diagram of medical imaging equipment according to an embodiment of the present invention.
  • the medical imaging equipment 800 includes any of power source control systems 810 for dual computers as described above.
  • the medical imaging equipment 800 may be a C-arm X-ray machine with dual computers.
  • the present invention is not limited in this aspect.
  • the medical imaging equipment 800 may also be various medical imaging equipment requiring dual computers, including but not limited to, X-ray equipment, CT equipment, MR equipment, and the like.

Abstract

The present invention provides a power source control module for dual computers, a power source control system for dual computers, and medical imaging equipment. The power source control module for dual computers includes: a power source control circuit for a primary computer, configured to: when detecting a voltage output in either of a power input end and a port of the primary computer, electrically connect the primary computer to an uninterruptible power supply (UPS) to power on the primary computer, and when detecting no voltage output in both the power input end and the port of the primary computer, electrically disconnect the primary computer from the UPS to power off the primary computer; and a power source control circuit for a secondary computer, configured to: when a first condition is satisfied, electrically connect the secondary computer to the UPS to power on the secondary computer, and when the first condition is not satisfied, electrically disconnect the secondary computer from the UPS to power off the secondary computer, where the first condition is that there is a voltage output in both the power input end and the port of the primary computer and that the primary computer is electrically connected to the UPS. The present invention can make the secondary computer properly run a startup or shutdown command.

Description

POWER SOURCE CONTROL MODULE FOR DUAL COMPUTERS, POWER SOURCE CONTROL SYSTEM FOR DUAL COMPUTERS, AND MEDICAL IMAGING EQUIPMENT TECHNICAL FIELD
The present invention relates to the field of computer technologies, and in particular, to a power source control module for dual computers and a power source control system for dual computers.
BACKGROUND
Nowadays, single-computer control systems cannot satisfy service requirements in many aspects such as data security and physical isolation any more. Therefore, dual-computer systems emerge. However, dual computers increase complexity in design of power source control.
In an existing power source control system for dual computers, when a power switch at a power input end is closed, that is, a power-on button is pressed, both a primary computer and a secondary computer are started up; and when the power switch at the power input end is opened, that is, a power-off button is pressed, both the primary computer and the secondary computer are shut down.
In a dual-computer system, if a shutdown occurs during a startup or a startup occurs during a shutdown, a primary computer can perform a startup or shutdown response properly according to a command, while a secondary computer cannot perform the startup or shutdown response properly according to the command.
SUMMARY
The present invention provides a power source control module for dual computers, a power source control system for dual computers, and medical imaging equipment, so that a secondary computer can perform a startup or shutdown response properly according to a command.
In a first aspect, the present invention provides a power source control module for dual computers, including:
a power source control circuit for a primary computer, configured to detect a power input  end and a port of the primary computer, electrically connect, when detecting a voltage output in either of the power input end and the port of the primary computer, the primary computer to an external uninterruptible power supply (UPS) to power on the primary computer, and electrically disconnect, when detecting no voltage output in both the power input end and the port of the primary computer, the primary computer from the UPS to power off the primary computer; and
a power source control circuit for a secondary computer, configured to detect the power input end, the port of the primary computer, and electrical connection between the primary computer and the UPS, electrically connect, when detecting that a first condition is satisfied, the secondary computer to the UPS to power on the secondary computer, and electrically disconnect, when detecting that the first condition is not satisfied, the secondary computer from the UPS to power off the secondary computer, where the first condition is that there is a voltage output in both the power input end and the port of the primary computer, and that the primary computer is electrically connected to the UPS.
Preferably, the power source control circuit for the secondary computer is further configured to electrically connect, when detecting that a second condition is satisfied, the secondary computer to the UPS, where the second condition is that there is a voltage output in a port of the secondary computer; and is further configured to detect whether the second condition is satisfied when detecting whether the first condition is satisfied, and perform the operation of electrically disconnecting the secondary computer from the UPS when detecting that neither the first condition nor the second condition is satisfied.
The power source control circuit for the primary computer is implemented by a first OR gate, two input ends of the first OR gate are respectively connected to a status output of the power input end and a status output of the port of the primary computer, and an output end of the first OR gate controls electrical connection between the primary computer and the UPS.
The power source control circuit for the secondary computer includes a first AND gate, where,
three input ends of the first AND gate are respectively connected to the output end of the first OR gate, the status output of the power input end, and the status output of the port of the primary computer, and an output end of the first AND gate controls electrical connection between the secondary computer and the UPS.
The power source control circuit for the secondary computer includes a second AND gate and a second OR gate, where,
three input ends of the second AND gate are respectively connected to the output end of  the first OR gate, the status output of the power input end, and the status output of the port of the primary computer, and an output end of the second AND gate is connected to an input end of the second OR gate; and
the other input end of the second OR gate is connected to a status output of the port of the secondary computer, and an output end of the second OR gate controls the electrical connection between the secondary computer and the UPS.
The power source control circuit for the primary computer includes a control loop, a switch contact of a first relay, and a switch contact of a second relay, where,
the control loop includes a control switch and a coil of the first relay that are serially connected;
the UPS, the switch contact of the first relay, and the primary computer are serially connected sequentially, to form a first connecting line;
the UPS, the switch contact of the second relay, and the primary computer are serially connected sequentially, to form a second connecting line; and
a coil of the second relay is connected to the port of the primary computer.
The power source control circuit for the secondary computer includes a switch contact of a third relay, a coil of a fourth relay, and a switch contact of the fourth relay, where,
the switch contact of the third relay and the coil of the fourth relay are first serially connected and then connected in parallel to both ends of the coil of the first relay;
an end of the switch contact of the fourth relay is connected to a first point of connection of the first connecting line, and the first point of connection is located between the switch contact of the first relay and the primary computer; and
a coil of the third relay is connected to the port of the primary computer.
The power source control circuit for the secondary computer further includes a switch contact of a fifth relay, where,
the switch contact of the fifth relay is connected in parallel to both ends of the switch contact of the fourth relay; and
a coil of the fifth relay is connected to the port of the secondary computer.
In a second aspect, the present invention provides a power source control system for dual computers, including a power switch at a power input end, a UPS, a primary computer, a secondary computer, and a power source control module for dual computers according to any of the embodiments in the present invention, where,
an end of the UPS is connected to the power switch, and the other end of the UPS is connected to the power source control module for dual computers.
Preferably, the power source control system for dual computers further includes an alternating current-direct current (AC-DC) conversion circuit, where an input end of the AC-DC conversion circuit is connected to the power switch, and an output end of the AC-DC conversion circuit is connected to a port of the primary computer.
In a third aspect, the present invention provides medical imaging equipment, including a power source control system for dual computers according to any of the embodiments in the present invention.
It is to be seen that in a power source control module for dual computers, a power source control system for dual computers and medical imaging equipment that are provided in the present invention, there is no switch directly connecting a UPS and a secondary computer in a power source control circuit for the secondary computer, that is, the secondary computer is not powered on by the UPS directly through the direct connecting switch. In addition, power-on/off of the secondary computer is controlled based on whether there is a voltage output in a port of a primary computer and electrical connection between the UPS and the primary computer, so that power-on/off of the secondary computer is consistent with that of the primary computer. In this way, the secondary computer can properly run a startup or shutdown command during a startup or shutdown.
BRIEF DESCRIPTION OF THE DRAWINGS
To describe the technical solutions in the embodiments of the present invention or in existing technologies more clearly, the accompanying drawings required for describing the embodiments or existing technologies are briefly described below. Apparently, the accompanying drawings in the following description show some embodiments of the present invention, and a person of ordinary skill in the art may still derive other drawings from these accompanying drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a power source control module for dual computers according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a logic circuit of a power source control circuit for a primary computer according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a logic circuit of a power source control circuit for a secondary computer according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a logic circuit of a power source control circuit for a secondary computer according to another embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a circuit when a power source control module for dual computers is implemented based on a relay according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a power source control system for dual computers according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a power source control system for dual computers according to another embodiment of the present invention; and
FIG. 8 is a schematic structural diagram of medical imaging equipment according to an embodiment of the present invention.
DETAILED DESCRIPTION
To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following clearly and thoroughly describes the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are merely some embodiments of the present invention rather than all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
As described above, the applicant of the present invention discovers that, in a dual-computer system, a UPS is usually used for supplying power to a primary computer and a secondary computer, and a direct connecting switch is usually disposed between the secondary computer and the UPS. As a result, the secondary computer tends to improperly run a startup or shutdown command when being shut down during a startup or being started up during a shutdown. In addition, the applicant further discovers that, in the dual-computer system, the primary computer can properly run a startup or shutdown command due to an internal preset logic. Therefore, if power-on/off of the secondary computer is kept consistent with that of the primary computer, the secondary computer can also properly run a startup or shutdown command during a startup or shutdown.
The following schematically describes the technical solutions of the present invention with reference to the accompanying drawings.
Referring to FIG. 1, in an embodiment of the present invention, a power source control module for dual computers is provided. The module includes:
a power source control circuit 201 for a primary computer, configured to detect a power input end and a port of the primary computer, electrically connect, when detecting a voltage output in either of the power input end and the port of the primary computer, the primary computer to a UPS to power on the primary computer, and electrically disconnect, when detecting no voltage output in both the power input end and the port of the primary computer, the primary computer from the UPS to power off the primary computer; and
a power source control circuit 202 for a secondary computer, configured to detect the power input end, the port of the primary computer, and electrical connection between the primary computer and the UPS, electrically connect, when detecting that a first condition is satisfied, the secondary computer to the UPS to power on the secondary computer, and electrically disconnect, when detecting that the first condition is not satisfied, the secondary computer from the UPS to power off the secondary computer, where the first condition is that there is a voltage output in both the power input end and the port of the primary computer, and that the primary computer is electrically connected to the UPS.
According to the foregoing description of the power source control module for dual computers shown in FIG. 1, there is no switch directly connecting the UPS and the secondary computer in the power source control circuit for the secondary computer, that is, the secondary computer is not powered on by the UPS directly through the direct connecting switch. In addition, power-on/off of the secondary computer is controlled based on whether there is a voltage output in the port of the primary computer and electrical connection between the UPS and the primary computer, so that power-on/off of the secondary computer is consistent with that of the primary computer. In this way, the secondary computer can properly run a startup or shutdown command during a startup or shutdown.
When the primary computer is being started up, a temporary power-down occurs on the port of the primary computer due to logic of the primary computer. To prevent the temporary power-down from affecting a startup of the secondary computer, according to an embodiment of the present invention, the power source control circuit for the secondary computer is further configured to electrically connect, when detecting that a second condition is satisfied, the secondary computer to the UPS, where the second condition is that there is a voltage output in a port of the secondary computer. The power source control circuit for the secondary computer is further configured to detect whether the second condition is satisfied when detecting whether the first condition is satisfied, and perform the operation of electrically disconnecting the secondary computer from the UPS when detecting that neither the first condition nor the second condition is satisfied. In the embodiment, it is to be seen  that when detecting that either the first condition or the second condition is satisfied, the secondary computer is electrically connected to the UPS to be powered on, and when detecting both the first condition and the second condition are not satisfied, the secondary computer is electrically disconnected from the UPS to be powered off.
According to an embodiment of the present invention, the power source control circuit for the primary computer may be implemented by a logic circuit of an OR gate. Referring to FIG. 2, two input ends of the OR gate (noted as OR gate 1) are respectively connected to a status output of the power input end and a status output of the port of the primary computer, and an output end of the OR gate 1 controls electrical connection between the primary computer and the UPS. It is to be seen that when there is a voltage output in either the power input end or the port of the primary computer, that is, an input of the OR gate 1 may be denoted as 1 and 1, or 1 and 0, there is a voltage output in the output end of the OR gate 1, that is, an output of the OR gate 1 may be denoted as 1. Then, the primary computer is electrically connected to the UPS to be powered on. When there is no voltage output in both the power input end and the port of the primary computer, that is, the input of the OR gate 1 may be denoted as 0 and 0, there is no voltage output in the output end of the OR gate 1, that is, the output of the OR gate 1 may be denoted as 0. Then, the primary computer is electrically disconnected from the UPS to be powered off, thereby implementing the function of the power source control circuit for the primary computer.
Based on the foregoing manner of implementing the power source control circuit for the primary computer by using the OR gate, the following two manners may be used for implementing the power source control circuit for the secondary computer.
Manner 1: An AND gate is used to implement the power source control circuit for the secondary computer.
Referring to FIG. 3, an OR gate on the left is the OR gate 1 for implementing the power source control circuit for the primary computer. The OR gate implements the power source control circuit for the secondary computer with an AND gate (noted as AND gate 1) on the right. Three input ends of the AND gate 1 are respectively connected to the output end of the OR gate 1, the status output of the power input end, and the status output of the port of the primary computer. An output end of the AND gate 1 controls electrical connection between the secondary computer and the UPS. It is to be seen that when an output of the power input end, an output of the port of the primary computer, and the output of the OR gate 1 are all 1, the secondary computer is electrically connected to the UPS to be powered on. Otherwise, the secondary computer is electrically disconnected from the UPS to be powered off, thereby  implementing the function of the power source control circuit for the secondary computer.
Manner 2: An AND gate and an OR gate are used to implement the power source control circuit for the secondary computer.
When the primary computer is being started up, a temporary power-down occurs on the port of the primary computer due to logic of the primary computer. To prevent the temporary power-down from affecting a startup of the secondary computer, manner 2 may be used to implement the power source control circuit for the secondary computer.
Referring to FIG. 4, an OR gate on the left is the OR gate 1 for implementing the power source control circuit for the primary computer, an AND gate in the middle is noted as AND gate 2, and an OR gate on the right is noted as OR gate 2. Three input ends of the AND gate 2 are respectively connected to the output end of the OR gate 1, the status output of the power input end, and the status output of the port of the primary computer. An output end of the AND gate 2 serves as an input end of the OR gate 2. The other input end of the OR gate 2 is connected to a status output of a port of the secondary computer. That is, when there is a voltage output in the port of the secondary computer, an input from the other input end to the OR gate 2 is 1. When the outputs of the power input end, the port of the primary computer, and the OR gate 1 are all 1, that is, an output of the AND gate 2 is 1, or when there is a voltage output in the port of the secondary computer, that is, an output is 1, the secondary computer is electrically connected to the UPS to be powered on. When the outputs of the power input end, the port of the primary computer, and the OR gate 1 are not all 1, that is, the output of the AND gate 2 is 0, and at the same time, there is no voltage output in the port of the secondary computer, that is, the output is 0, the secondary computer is electrically disconnected from the UPS to be powered off, thereby implementing the function of the power source control circuit for the secondary computer.
The foregoing describes the structures adopting gate circuits to implement the present invention.
According to an embodiment of the present invention, a relay may also be used for implementing the power source control module for dual computers. A relay includes a coil and a switch contact. Opening or closing of the switch contact depends on whether there is a voltage output in the coil. On this basis, referring to FIG. 5, in an embodiment of the present invention, a circuit structure of the power source control module for dual computers is implemented as follows:
The power source control circuit for the primary computer includes a control loop, a switch contact K12 of a first relay, and a switch contact K22 of a second relay, where,
the control loop includes a control switch K0 and a coil K11 of the first relay that are serially connected;
the external UPS, K12, and the primary computer PC1 are serially connected sequentially, to form a first connecting line;
the UPS, K22, and PC1 are serially connected sequentially, to form a second connecting line; and
a coil K21 of the second relay is connected to the port of PC1 (for example, a port COM1 shown in FIG. 5) .
Referring to FIG. 5, based on the structure of the power source control circuit for the primary computer, the power source control circuit for the secondary computer includes a switch contact K32 of a third relay, a coil K41 of a fourth relay, and a switch contact K42 of the fourth relay, where,
K32 and K41 are first serially connected and then connected in parallel to both ends of K11;
an end of K42 is connected to a first point of connection of the first connecting line, and the first point of connection is located between K12 and PC1; and
a coil K31 of the third relay is connected to the port of PC1 (for example, the port COM1 shown in FIG. 5) .
According to the embodiment of the present invention, to prevent a temporary power-down of the primary computer during a startup from affecting a startup of the secondary computer, referring to FIG. 5, the power source control circuit for the secondary computer may further include a switch contact K52 of a fifth relay, where,
K52 is connected in parallel to both ends of K42; and
a coil K51 of the fifth relay is connected to the port of the secondary computer PC2 (for example, a port COM2 shown in FIG. 5) .
Based on the power source control module for dual computers as shown in FIG. 5, power-on/off of the secondary computer can be kept consistent with that of the primary computer, thereby resolving the problem that the secondary computer cannot properly run a startup or shutdown command during a startup or shutdown. Analysis is as follows:
The following describes how to resolve the problem that the secondary computer cannot properly run a startup or shutdown command due to a shutdown during a startup. Referring to FIG. 5, a startup command is inputted first, that is, after a power switch K of a power input end 601 on the left is switched to "power on" , K12 is closed and PC2 starts up after detecting a signal rising edge. At the same time, PC1 starts up after detecting a startup signal. When a  shutdown occurs during the startup, that is, the power switch of the power input end is opened and switched to "power off" , as described before, PC1 is shut down normally. As PC1 is powered off after the shutdown, there is no voltage output in the port COM1 of PC1. As a result, the following will occur:
1. There is no voltage output in the port COM1. Correspondingly, there is no voltage output in the coil K21 and the coil K31, which are connected in parallel to an output end of the port COM1. Then, the switch contact K22 matching the coil K21 and the switch contact K32 matching the coil K31 are opened.
2. As the switch of the power input end is opened and switched to "power off" , the switch K0 is also opened. There is no voltage output in the coil K11 after the power-off, so that the switch contact K12 matching the coil K11 is opened.
3. As the switch contact K32 is opened, there is no voltage output in the coil K41. Then, the switch contact K42 matching the coil K41 is opened.
It is to be seen that the switch contacts K22, K12, and K42 are all opened after a shutdown during a startup. In this way, without power supply from the UPS, PC2 is also powered off like PC1 and shuts down. Therefore, PC2 also properly runs a shutdown command during the startup.
The following describes how to resolve the problem that the secondary computer cannot properly run a startup or shutdown command due to a startup during a shutdown. Referring to FIG. 5, a shutdown command is inputted, that is, after the power switch K of the power input end 601 on the left is switched to "power off" , PC2 shuts down. At the same time, PC1 shuts down after detecting a shutdown signal. When a startup occurs during the shutdown, that is, after the power switch K of the power input end 601 is closed and switched to "power on" , as described before, PC1 can start up normally after the shutdown. As PC1 starts up after the shutdown, PC1 is first powered off and then powered on. Therefore, first there is no voltage output in the port of COM1 and then there is a voltage output in the port COM1 of PC1. As a result, there is no voltage output in K31 first and then there is a voltage output in K31. Correspondingly, the switch K32 is opened first and then closed. Correspondingly, there is no voltage output in K41 first and then there is a voltage output in K41. Correspondingly, the switch K42 is opened first and then closed, so that PC2 detects a signal rising edge and starts up. Therefore, PC2 also properly run a startup or shutdown command during the shutdown.
With reference to the circuit structure shown in FIG. 5, the following describes how to prevent a temporary power-down of PC1 during a startup from affecting a startup of PC2 in the embodiment of the present invention.
At the moment of the startup, after PC1 and PC2 are powered on, a transient power-down occurs on the port COM1 of PC1 due to logic of PC1. Therefore, there is no voltage output in the coil K31 and the coil K21, and then the switch contacts K32 and K22 are opened. After K32 is opened, there is no voltage output in the coil K41, so that the switch contact K42 is also opened. However, the switch contact K52 is matched with the coil K51 connected to the port COM2 of PC2. Therefore, the opening or closing of the switch contact K52 depends on power-on/off of PC2. In the foregoing case, although the switch contacts K42 and K22 are opened when the power-down occurs on PC1, since the switch contacts K12 and K52 are still closed, the power supply of the UPS is still available for PC2. Therefore, PC2 is still powered on and the startup of PC2 is not affected by a voltage jump of PC1.
In an embodiment of the present invention, a power source control system for dual computers is further provided. Referring to FIG. 6, the system includes:
a power switch 701 at a power input end 706, a UPS 702, a primary computer 703, a secondary computer 704, and a power source control module 705 for dual computers according to any of the embodiments in the present invention.
An end of the UPS 702 is connected to the power switch 701, and the other end of the UPS 702 is connected to the power source control module 705 for dual computers.
In another embodiment of the present invention, another power source control system for dual computers is provided. Referring to FIG. 7, based on the power source control system for dual computers shown in FIG. 6, this system further includes an AC-DC conversion circuit 801, where an input end of the AC-DC conversion circuit 801 is connected to the power switch 701, and an output end of the AC-DC conversion circuit 801 is connected to a port of the primary computer 703.
A person of skill in the art may apply the technical principles taught in the present invention to various application scenarios of dual computers according to actual application requirements. For example, the present invention may be applied to the field of medical imaging, to which the present invention is not limited.
FIG. 8 is a schematic structural diagram of medical imaging equipment according to an embodiment of the present invention. In the embodiment shown in FIG. 8, the medical imaging equipment 800 includes any of power source control systems 810 for dual computers as described above. In practice, the medical imaging equipment 800 may be a C-arm X-ray machine with dual computers. The present invention is not limited in this aspect. The medical imaging equipment 800 may also be various medical imaging equipment requiring dual  computers, including but not limited to, X-ray equipment, CT equipment, MR equipment, and the like.
It is to be noted that, the relational terms herein such as first and second are used only to differentiate an entity or operation from another entity or operation, and do not require or imply any actual relationship or sequence between these entities or operations. Furthermore, terms "comprise" , "include" or any other variants are intended to encompass non-exclusive inclusion, such that a process, a method, an article or a device including a series of elements not only includes those elements, but also includes other elements not listed explicitly or includes intrinsic elements for the process, the method, the article, or the device. Unless otherwise specified, an element defined by the phrase "include a/an... " does not exclude existence of other same elements in the process, the method, the article, or the device that includes the elements.
The last point to be noted is that the foregoing descriptions are only comparatively good embodiments of the present invention, and are only used to describe the technical solutions of the present invention, but are not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, or improvement made and the like within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims (11)

  1. A power source control module for dual computers, comprising:
    a power source control circuit for a primary computer, configured to detect a power input end and a port of the primary computer, electrically connect, when detecting a voltage output in either of the power input end and the port of the primary computer, the primary computer to an external uninterruptible power supply (UPS) to power on the primary computer, and electrically disconnect, when detecting no voltage output in both the power input end and the port of the primary computer, the primary computer from the UPS to power off the primary computer; and
    a power source control circuit for a secondary computer, configured to detect the power input end, the port of the primary computer, and electrical connection between the primary computer and the UPS, electrically connect, when detecting that a first condition is satisfied, the secondary computer to the UPS to power on the secondary computer, and electrically disconnect, when detecting that the first condition is not satisfied, the secondary computer from the UPS to power off the secondary computer, wherein the first condition is that there is a voltage output in both the power input end and the port of the primary computer, and that the primary computer is electrically connected to the UPS.
  2. The power source control module for dual computers according to claim 1, wherein
    the power source control circuit for the secondary computer is further configured to electrically connect, when detecting that a second condition is satisfied, the secondary computer to the UPS, wherein the second condition is that there is a voltage output in a port of the secondary computer, and is further configured to detect whether the second condition is satisfied when detecting whether the first condition is satisfied, and perform the operation of electrically disconnecting the secondary computer from the UPS when detecting that neither the first condition nor the second condition is satisfied.
  3. The power source control module for dual computers according to claim 1, wherein
    the power source control circuit for the primary computer is implemented by a first OR gate, two input ends of the first OR gate are respectively connected to a status output of the power input end and a status output of the port of the primary computer, and an output end of the first OR gate controls the electrical connection between the primary computer and the UPS.
  4. The power source control module for dual computers according to claim 3, wherein  the power source control circuit for the secondary computer comprises a first AND gate, wherein
    three input ends of the first AND gate are respectively connected to the output end of the first OR gate, the status output of the power input end and the status output of the port of the primary computer, and an output end of the first AND gate controls electrical connection between the secondary computer and the UPS.
  5. The power source control module for dual computers according to claim 3, wherein the power source control circuit for the secondary computer comprises a second AND gate and a second OR gate, wherein
    three input ends of the second AND gate are respectively connected to the output end of the first OR gate, the status output of the power input end, and the status output of the port of the primary computer, and an output end of the second AND gate is connected to an input end of the second OR gate; and
    the other input end of the second OR gate is connected to a status output of the port of the secondary computer, and an output end of the second OR gate controls electrical connection between the secondary computer and the UPS.
  6. The power source control module for dual computers according to claim 1, wherein the power source control circuit for the primary computer comprises a control loop, a switch contact of a first relay, and a switch contact of a second relay, wherein
    the control loop includes a control switch and a coil of the first relay that are serially connected;
    the UPS, the switch contact of the first relay, and the primary computer are serially connected sequentially, to form a first connecting line;
    the UPS, the switch contact of the second relay, and the primary computer are serially connected sequentially, to form a second connecting line; and
    a coil of the second relay is connected to the port of the primary computer.
  7. The power source control module for dual computers according to claim 6, wherein the power source control circuit for the secondary computer comprises a switch contact of a third relay, a coil of a fourth relay, and a switch contact of the fourth relay, wherein
    the switch contact of the third relay and the coil of the fourth relay are first serially connected and then connected in parallel to both ends of the coil of the first relay;
    an end of the switch contact of the fourth relay is connected to a first point of connection of the first connecting line, and the first point of connection is located between the switch contact of the first relay and the primary computer; and
    a coil of the third relay is connected to the port of the primary computer.
  8. The power source control module for dual computers according to claim 7, wherein the power source control circuit for the secondary computer further comprises a switch contact of a fifth relay, wherein
    the switch contact of the fifth relay is connected in parallel to both ends of the switch contact of the fourth relay; and
    a coil of the fifth relay is connected to the port of the secondary computer.
  9. A power source control system for dual computers, comprising: a power switch at a power input end, a UPS, a primary computer, a secondary computer, and the power source control module for dual computers according to any of claims 1 to 8; wherein
    an end of the UPS is connected to the power switch, and the other end of the UPS is connected to the power source control module for dual computers.
  10. The power source control system for dual computers according to claim 9, further comprising an alternating current-direct current (AC-DC) conversion circuit, wherein an input end of the AC-DC conversion circuit is connected to the power switch and an output end of the AC-DC conversion circuit is connected to a port of the primary computer.
  11. Medical imaging equipment, comprising the power source control system for dual computers according to claim 9 or 10.
PCT/CN2021/114578 2020-11-24 2021-08-25 Power source control module and control system for dual computers, and medical imaging equipment WO2022110931A1 (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3226380A1 (en) * 2016-03-31 2017-10-04 Konica Minolta Business Solutions Europe GmbH Uninterruptible power supply

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002258993A (en) * 2001-03-05 2002-09-13 Toshiba Tec Corp Uninterruptible power supply unit
US20030227785A1 (en) * 2002-06-06 2003-12-11 Johnson Robert W. On-line uninterruptible power supplies with two-relay bypass circuit and methods of operation thereof
CN2705816Y (en) * 2004-05-31 2005-06-22 崔青松 Full turn-off protector for computer
TWI330445B (en) * 2007-01-29 2010-09-11 Chimei Innolux Corp Power control circuit and liquid crystal display device using the same
CN101299547B (en) * 2007-05-03 2012-07-04 国际商业机器公司 Apparatus and method for distributed standby power provision
CN201393076Y (en) * 2009-03-20 2010-01-27 深圳市捷益达电子有限公司 Uninterrupted power supply two-machine redundancy parallel connection system
JP5414402B2 (en) * 2009-07-15 2014-02-12 キヤノン株式会社 Power supply device and image forming apparatus
CN201518119U (en) * 2009-10-28 2010-06-30 航天信息股份有限公司 On-off device
CN201780549U (en) * 2010-08-16 2011-03-30 鸿富锦精密工业（深圳）有限公司 Multi-status switch control device and system
CN101968677A (en) * 2010-10-25 2011-02-09 广东威创视讯科技股份有限公司 Device and method for controlling multiple sets of electronic equipment to switch on or shut down at same time
CN102354261A (en) * 2011-08-15 2012-02-15 广州爱亿信息科技有限公司 Remote control system for power supply switches of machine room servers
CN102880280A (en) * 2012-08-31 2013-01-16 天津三星电子有限公司 Display terminal
US10277067B2 (en) * 2013-10-30 2019-04-30 Schneider Electric It Corporation Power supply control
EP3123272A4 (en) * 2014-03-28 2017-12-13 Schneider Electric IT Corporation Systems and methods for monitoring a configuration of ups groups with different redundancy levels
CN204028614U (en) * 2014-07-25 2014-12-17 上海联影医疗科技有限公司 Switching on and shutting down control circuit and medical imaging device
CN104898476B (en) * 2015-04-07 2017-10-03 海能达通信股份有限公司 A kind of switching on and shutting down control circuit and the electronic equipment with the circuit
CN105467870B (en) * 2015-11-20 2018-05-18 沈阳东软医疗系统有限公司 A kind of method and system of simultaneously operating
CN205301910U (en) * 2016-01-07 2016-06-08 郑州捷安高科股份有限公司 Open power -off control device
CN205510006U (en) * 2016-03-11 2016-08-24 深圳市安保科技有限公司 Switching on and shutting down circuit and medical equipment
CN106130175A (en) * 2016-08-05 2016-11-16 王楚 A kind of ups power and the computer with power-off protection
CN108241314A (en) * 2016-12-26 2018-07-03 杭州秋溢科技有限公司 A kind of no UPS realizes the circuit of one key switch machine of industrial equipment
CN206451126U (en) * 2017-02-06 2017-08-29 吴广平 A kind of control circuit of controlled in wireless computer on/off
CN207706199U (en) * 2017-12-28 2018-08-07 南京熊猫电子股份有限公司 A kind of the time frequency system of more extension set switching on and shutting down of host computer control
CN207884354U (en) * 2018-02-01 2018-09-18 龚学龙 A kind of industrial computer dual power supply automatic switching device
CN108899955B (en) * 2018-07-27 2022-02-18 上海联影医疗科技股份有限公司 Power-off control device and active medical equipment
CN208984991U (en) * 2018-12-24 2019-06-14 郑州畅想高科股份有限公司 Delaying shutdown control system and delaying shutdown control device
CN211349074U (en) * 2020-04-10 2020-08-25 邵山武 Unified startup and shutdown terminal control device of student experiment machine room terminal computer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3226380A1 (en) * 2016-03-31 2017-10-04 Konica Minolta Business Solutions Europe GmbH Uninterruptible power supply

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