CN111277039A - Power management method and power system of operating room equipment, operating lamp and operating table - Google Patents

Power management method and power system of operating room equipment, operating lamp and operating table Download PDF

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Publication number
CN111277039A
CN111277039A CN202010070670.6A CN202010070670A CN111277039A CN 111277039 A CN111277039 A CN 111277039A CN 202010070670 A CN202010070670 A CN 202010070670A CN 111277039 A CN111277039 A CN 111277039A
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China
Prior art keywords
power supply
main
standby
operating
circuit
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CN202010070670.6A
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Chinese (zh)
Inventor
何祥连
卢惠辉
练荣辉
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Nanjing Mindray Bio Medical Electronics Co Ltd
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Nanjing Mindray Bio Medical Electronics Co Ltd
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Priority to CN202010070670.6A priority Critical patent/CN111277039A/en
Publication of CN111277039A publication Critical patent/CN111277039A/en
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    • 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
    • H02J9/061—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 for DC powered loads
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems

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  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

The invention provides a power management method of operating room equipment, a power system, an operating lamp and an operating bed. The method is used for providing a power supply system for operating room equipment, wherein the power supply system comprises a main power supply, a standby power supply and a main/standby switching circuit; the method comprises the steps of detecting a level signal of a main power supply, driving a main/standby switching circuit of the main/standby switching circuit according to the change of the level signal of the main power supply, and enabling the standby power supply to supply power to driving equipment of an operating bed assembly or power supply equipment in the operating lamp assembly after being boosted, or enabling the main power supply to supply power to the driving equipment of the operating bed assembly or the power supply equipment in the operating lamp assembly. In the scheme, the main/standby switching circuit completes the rapid switching of the main/standby power supplies by detecting the detection result of the level signal of the main power supply, so that the problem of unstable power supply caused by voltage drop in the switching process is avoided, and the purpose of stably supplying power to a rear-end load in the switching process of the main/standby power supplies is realized.

Description

Power management method and power system of operating room equipment, operating lamp and operating table
Technical Field
The invention relates to the technical field of power supplies, in particular to a power supply management method of operating room equipment, a power supply system, an operating lamp and an operating table.
Background
In the operation process, aiming at the power supply of loads such as an operation lamp, an operation bed and the like, a set of independent power supply main and standby power supply system is respectively adopted.
At present, in the existing main/standby power supply system technical scheme, the main/standby power supply switching mainly depends on the switching between the main/standby power supplies by an active switching tube. On one hand, however, the active switching tube is loaded with a switch, and both current and voltage stress are large, so that the active switching tube is easily damaged, and power supply to a rear-end load is influenced; on the other hand, the active control signal has a problem of hysteresis, so that the output voltage drops greatly in the switching process of the main power supply and the standby power supply, and the power supply to the rear-end load may be abnormal in a serious case.
Therefore, the problems of unstable power supply and abnormal power supply can be caused when the main power supply and standby power supply system in the prior art is used for switching the main power supply and the standby power supply to supply power to the rear-end load.
Disclosure of Invention
In view of this, embodiments of the present invention provide a power management method for operating room equipment, a power system, an operating lamp, and an operating table, so as to achieve the purpose of stably supplying power to a back-end load during the process of switching between a main power supply and a standby power supply, and avoiding abnormal power supply.
The embodiment of the invention provides the following technical scheme:
a power supply management method of operating room equipment is used for a power supply system, wherein the power supply system comprises a processor, a main power supply, a standby power supply, a booster circuit and a main/standby switching circuit, wherein the output voltage of the main power supply is greater than that of the standby power supply; the operating room equipment comprises an operating lamp assembly for illuminating in the operating room operation process or an operating bed assembly for carrying a patient in the operating room operation process; the method comprises the following steps:
detecting a level signal of the main power supply;
and driving the main/standby switching circuit according to the change of the level signal of the main power supply, so that the standby power supply supplies power to the driving equipment of the operating table assembly or the power supply equipment in the operating lamp assembly after being boosted, or the main power supply supplies power to the driving equipment of the operating table assembly or the power supply equipment in the operating lamp assembly.
The embodiment of the invention also provides another technical scheme as follows.
A power supply system comprising: the main power supply, the standby power supply, the booster circuit and the main/standby switching circuit;
the main power supply is connected with driving equipment of an operating bed component or power supply equipment in an operating lamp component through the main/standby switching circuit;
the standby power supply is connected with the driving equipment of the operating bed component or the power supply equipment in the operating lamp component through the booster circuit and the main/standby switching circuit;
wherein the output voltage of the main power supply is greater than that of the standby power supply, the operating table assembly is used for bearing a patient in an operating room operation process, and the operating lamp assembly is used for illuminating in the operating room operation process;
the main/standby switching circuit switches the standby power supply and the main power supply according to the change of the level signal of the main power supply, so that the standby power supply supplies power to the driving equipment of the operating bed assembly or the power supply equipment in the operating lamp assembly after being boosted by the booster circuit, or the main power supply supplies power to the driving equipment of the operating bed assembly or the power supply equipment in the operating lamp assembly.
The embodiment of the invention also provides another technical scheme as follows.
A power supply system comprising: the system comprises a main power supply, a standby power supply, a direct-current power supply port, a booster circuit, a main-standby switching circuit, a charging circuit, a microcontroller MCU (microprogrammed control unit), a battery management circuit, a power consumption management circuit, a driving power supply and a communication circuit;
the microcontroller MCU is used for detecting a level signal of the main power supply and/or a level signal of the direct-current power supply;
the main/standby switching circuit is used for enabling the main power supply to directly supply power to the driving equipment of the operating bed component or the power supply equipment in the operating lamp component when the microcontroller MCU detects the level signal of the main power supply, enabling the output voltage of the standby power supply to supply power to the driving equipment of the operating bed component or the power supply equipment in the operating lamp component after being boosted by the boosting circuit when the microcontroller MCU does not detect the level signal of the main power supply and detects the level signal of the DC power supply port, and enabling the output voltage input by the DC power supply through the DC power supply port to supply power to the driving equipment of the operating bed component or the power supply equipment in the operating lamp component after being boosted by the boosting circuit when the microcontroller MCU does not detect the level signal of the main power supply and detects the level signal of the DC power supply port;
the charging circuit is used for charging the standby power supply after the output voltage of the main power supply is reduced when the microcontroller MCU detects a level signal of the main power supply, and charging the standby power supply after the output voltage input by the DC power supply through the DC power supply port is reduced when the microcontroller MCU does not detect the level signal of the main power supply and detects the level signal of the DC power supply port;
the battery management circuit is used for acquiring the state parameters of the standby power supply and sending the state parameters to the microcontroller MCU;
the microcontroller MCU is further used for determining the state of the standby power supply according to the state parameters of the standby power supply, controlling the charging circuit to stop charging if the state of the standby power supply does not meet the requirements, calculating the residual electric quantity of the standby power supply by the microcontroller MCU, and disconnecting the battery switch of the standby power supply if the residual electric quantity indicates that the standby power supply is insufficient;
the power consumption management circuit is used for enabling the microcontroller MCU to be in a standby state, or enabling the standby power supply to stop supplying power to the main control equipment of the operating bed component or the operating lamp component when the microcontroller MCU detects that a switch turn-off signal or the voltage of the standby power supply is lower than a protection value;
the microcontroller MCU is also used for adjusting the driving voltage output by the driving circuit to the driving equipment of the operating bed component based on receiving a speed regulating signal sent by the main control equipment of the operating bed component or the operating lamp component;
the communication circuit is used for communicating with the main control equipment of the operating table assembly or the operating lamp assembly.
The embodiment of the invention also provides another technical scheme as follows.
An operating lamp comprises an operating lamp assembly and the power supply system provided by the embodiment of the invention;
the surgical lamp assembly includes: the operating lamp, the power supply equipment and the main control equipment of the operating lamp;
the power supply system is connected with the operating lamp assembly and used for switching power supplies to supply power to the power supply equipment and/or the main control equipment of the operating lamp.
The embodiment of the invention also provides another technical scheme as follows.
An operating bed, comprising: the power supply system provided by the embodiment of the invention is provided with a surgical bed component;
the surgical bed assembly includes: the bed body supporting plates, the driving devices arranged on the corresponding bed body supporting plates and the main control device of the operating bed;
the power supply system is connected with the operating bed assembly and used for switching a power supply to supply power to the driving device and/or the main control device of the operating bed;
if the power supply system further comprises a driving circuit;
the power supply system is also used for receiving a speed regulation signal sent by a main control device of the operating bed and adjusting the driving circuit to output driving voltage to the driving device based on the speed regulation signal;
and the driving equipment is used for enabling the corresponding bed body supporting plate to act based on the driving voltage.
Based on the power management method, the power system, the operating lamp and the operating bed of the operating room equipment provided by the embodiment of the invention. The method is used for a power supply system, wherein the power supply system comprises a main power supply, a standby power supply and a main/standby switching circuit; the method comprises the steps of detecting a level signal of a main power supply, driving a main/standby switching circuit of the main/standby switching circuit according to the change of the level signal of the main power supply, and enabling the standby power supply to supply power to driving equipment of an operating bed assembly or power supply equipment in the operating lamp assembly after being boosted, or enabling the main power supply to supply power to the driving equipment of the operating bed assembly or the power supply equipment in the operating lamp assembly. In the scheme, the main/standby switching circuit completes the rapid switching of the main/standby power supplies by detecting the detection result of the level signal of the main power supply, so that the problem of unstable power supply caused by voltage drop in the switching process is avoided, and the purpose of stably supplying power to a rear-end load in the switching process of the main/standby power supplies is realized.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is apparent that the drawings in the following description are only embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a power supply system according to an embodiment of the disclosure;
FIG. 2 is a schematic structural diagram of another power supply system according to an embodiment of the disclosure;
FIG. 3 is a schematic structural diagram of another power supply system according to an embodiment of the disclosure;
FIG. 4 is a schematic structural diagram of another power supply system according to the embodiment of the present disclosure;
FIG. 5 is a schematic view of a surgical lamp according to an embodiment of the present invention;
fig. 6 is a schematic structural view of an operating table according to an embodiment of the present invention;
fig. 7 illustrates a power management method for operating room equipment according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In this application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The main and standby power switching is mainly realized by controlling the switching between main and standby power supplies through an active switch tube, and due to the problem of hysteresis of active control signals, the output voltage drops greatly in the main and standby power supply switching process, so that the power supply to a rear-end load is unstable in severe cases, and the power supply is abnormal.
Therefore, the embodiment of the invention provides a power supply system. The main/standby switching circuit completes the rapid switching of the main/standby power supplies by detecting the detection result of the level signal of the main power supply, and enables the standby output voltage to supply power to a rear-end load after boosting under the condition of power supply of the standby power supply, thereby avoiding the problem of unstable power supply to the load due to voltage drop in the switching process. Specifically, the structure of the power supply system and the main/standby switching process implemented based on the power supply system are described in detail by the following embodiments.
Fig. 1 is a schematic structural diagram of a power supply system according to an embodiment of the present invention. The power supply system mainly includes: the power supply comprises a main power supply 1, a standby power supply 2, a main/standby switching circuit 3 and a booster circuit 4.
The main power supply 1 is connected to a first load 20 through the main/standby switching circuit 3.
The standby power supply 2 is connected with a first load 20 through a booster circuit 4 and a main/standby switching circuit 3.
The output voltage of the main power supply 1 is greater than the output voltage of the backup power supply 2.
In some of these embodiments, the main power supply 1 comprises an AC/DC power supply module or an AC/DC power supply board provided with an AC/DC power supply.
The AC/DC power supply is used as a switching power supply, stable and reliable 24V _ AC/DC direct-current voltage can be output, the problems caused by a power frequency transformer can be solved, and loads requiring two input power supplies of DC24V and AC24V are compatible.
In some of these embodiments, the backup power source 2 may be a lithium battery.
In some of these embodiments, the backup power supply 2 comprises two batteries in parallel. Alternatively, the parallel battery may be two lead-acid batteries connected in parallel.
The lead-acid battery has the advantages of reduced compressive stress, more selectable types and lower cost. And the parallel lead-acid batteries have balanced voltage, the requirement on the initial state of the batteries is not high in series connection, and the safety of the battery in the use process can be improved. Two lead-acid batteries connected in parallel are used for charging and supplying power in parallel, and the output voltage of a charging circuit is changed from 24V in series connection of the batteries to 12V in parallel connection of the batteries. The transient output voltage of the charging circuit can be 29V at most, and the maximum floating charge voltage can be 13.8V.
The types of the main power supply 1 and the backup power supply 2 in the embodiment of the present invention are not limited to this, and it is only necessary to satisfy the requirement that the load can be supplied with power, and the output voltage of the main power supply 1 is greater than the output voltage of the backup power supply 2.
In an embodiment of the present invention, the first load 20 belongs to an operating room device, which comprises an operating light assembly for illuminating during an operating room procedure or an operating bed assembly for carrying a patient during an operating room procedure. The surgical lamp assembly includes: the operating lamp, the power supply equipment and the main control equipment of the operating lamp; the surgical bed assembly includes: a plurality of bed body backup pads, set up in the main control equipment of the drive device and operation table in corresponding bed body backup pad. The first load 20 comprises a driving device of the operating bed assembly or a power supply device in the operating lamp assembly. The second load comprises a master device in a surgical bed assembly or a surgical light assembly.
The main/standby switching circuit 3 is configured to, according to a change of a level signal of the main power supply 1, enable the standby power supply 2 to supply power to a driving device of the operating table assembly or a power supply device in the operating lamp assembly after being boosted by the voltage boosting circuit 4, or enable the main power supply to supply power to the driving device of the operating table assembly or the power supply device in the operating lamp assembly under the condition that the level signal exists in the main power supply.
In a specific implementation, the active/standby switching circuit 3 is configured to, when a level signal exists in the main power supply 1, enable the main power supply 1 to directly supply power to the load 20, or, when the level signal does not exist in the main power supply 1, enable the output voltage of the standby power supply 2 to be boosted by the voltage boost circuit 4 and then supply power to the first load 20.
In the embodiment of the invention, the load is supplied with power according to the priority of the power supply, and the priority of the main power supply 1 is higher than that of the standby power supply. Specifically, the power supply with the highest priority, that is, the main power supply, starts to detect whether the power supply is online, and once the power supply with the current level is detected to be offline, the power supply with the current level is switched to supply power to the power supply with the next level.
In some of these embodiments, the power supply system further comprises a charging circuit.
The charging circuit is used for charging the standby power supply 2 after the output voltage of the main power supply 1 is reduced under the condition that the level signal exists in the main power supply 1.
In the specific implementation, when the charging circuit charges the standby power supply 11, based on the control of the microcontroller MCU, trickle charging is performed first, then constant current charging is performed, and finally floating voltage charging is performed on the standby power supply 11 all the time.
In some embodiments, the charging circuit 17 is designed with a buck topology. The charging circuit 17 is powered by 24V _ AC/DC or 21V _ AC/DC, and the 24V is reduced to 12V through a voltage reduction topology.
In the embodiment of the invention, whether the power supply is on line or not can be detected by the first microcontroller MCU.
In some embodiments, the first microcontroller MCU is respectively connected to the main power supply 1, the standby power supply 2, and the main/standby switching circuit 3.
The first microcontroller MCU is configured to detect a level signal of the main power source 1, send a switching signal to the main/standby switching circuit 3 when the level signal of the main power source 1 is detected, so that the main/standby switching circuit 3 directly supplies power to the first load 20 based on the switching signal, and send a switching signal to the main/standby switching circuit 3 when the level signal of the main power source 1 is not detected, so that the main/standby switching circuit 3 boosts an output voltage of the standby power source 2 based on the switching signal and then supplies power to the first load 20.
Based on the types of the main power supply and the backup power supply disclosed in some embodiments above, the description is given by taking the first microcontroller MCU to detect a level signal as an example:
the main power supply 24V _ AC/DC converted from the mains supply is preferentially used for supplying power, if the microcontroller MCU does not detect the output voltage of the main power supply 24V _ AC/DC, the power is switched to the standby power supply, and the standby power supply, namely a lead-acid battery or a lithium battery, is used for supplying power to the load.
In some embodiments, the power supply system further includes a power management circuit, and the power management circuit includes a first switch tube and/or a second switch tube.
The first switch tube is arranged on a path between the standby power supply 2 and the second load. The second switch tube is connected with the first microcontroller MCU.
In some embodiments, the first switch tube may adopt a soft-hard combination manner.
In physical aspect, a physical switch is added to the physical hardware. The physical switch is mainly used for power consumption management of loads, i.e. surgical accessories, in the state of long-distance transport and long-term storage.
In terms of software, when the physical switch is turned off, the first microcontroller MCU stores data after detecting that the physical switch is turned off, and turns off other circuits and the first switching tube on the power system. When the first microcontroller MCU turns off the second switch tube, the first microcontroller MCU is in a standby state, so that the power supply system is in a low power consumption state.
In some embodiments, the first microcontroller MCU is further configured to control the first switching tube to be turned off when a switch off signal is detected or the voltage of the standby power supply 2 is lower than a protection value, so that the standby power supply 2 stops supplying power to the second load.
In some embodiments, the first microcontroller MCU is further configured to enable the first microcontroller MCU to be in a standby state when the second switching tube is turned off.
In some of these embodiments, the power supply system further comprises: a battery management circuit; the battery management circuit is connected with the standby power supply 2 and the first microcontroller MCU.
And the battery management circuit is used for acquiring the state parameters of the standby power supply 2 and sending the state parameters to the first microcontroller MCU.
The microcontroller MCU is further used for determining the state of the standby power supply according to the state parameters of the standby power supply 2, and if the state of the standby power supply does not meet the requirements, the first microcontroller MCU controls the charging circuit to stop charging;
in some embodiments, the first microcontroller MCU is further configured to calculate a remaining power of the backup power supply 2 based on the status parameter of the backup power supply, and disconnect the battery switch of the backup power supply 2 if the remaining power indicates that the backup power supply 2 is low in power.
In some of these embodiments, the power supply system further comprises a driver circuit. The driving circuit is connected with the first microcontroller MCU and the driving device of the operating bed component, and the first microcontroller MCU is also used for receiving a speed regulating signal sent by the main control device of the operating bed component and adjusting the driving voltage output by the driving circuit to the driving device of the operating bed component based on the speed regulating signal.
In the embodiment of the invention, whether the power supply is on line or not can be detected by controlling the switch.
In some of these embodiments, the control switch is connected to the main power supply 1.
The control switch is used for switching on when the main power supply 1 has a level signal or switching off when the main power supply 1 does not have the level signal.
The active/standby switching circuit 3 is further configured to boost the output voltage of the standby power supply 2 to supply power to the first load 20 when the control switch is turned off, or to supply power to the first load by the main power supply when the control switch is turned on.
In some of these embodiments, the power system further includes a second microcontroller, a battery management circuit, a power consumption management circuit, and a driver circuit.
And the battery management circuit is used for acquiring the state parameters of the standby power supply 2 and sending the state parameters to the second microcontroller MCU.
Second microcontroller MCU still is used for calculating based on stand-by power supply 2's state parameter stand-by power supply 2's residual capacity, if the residual capacity instruction stand-by power supply 2 insufficient voltage, second microcontroller MCU disconnection stand-by power supply's battery switch.
And the second microcontroller MCU is also used for determining the state of the standby power supply according to the state parameters of the standby power supply 2, and controlling the charging circuit to stop charging if the state of the standby power supply does not meet the requirements.
The power consumption management circuit comprises a first switch tube, and the first switch tube is arranged on a path between the standby power supply 2 and the second load;
the second microcontroller MCU is further used for controlling the first switch tube to be disconnected when a switch turn-off signal is detected or the voltage of the standby power supply 2 is lower than a protection value, so that the standby power supply 2 stops supplying power to the second load; and/or the power consumption management circuit further comprises a second switch tube, and the second switch tube is connected with the second microcontroller MCU.
And the second microcontroller MCU is also used for controlling the second switching tube to be in a standby state when the second switching tube is disconnected.
The driving circuit is connected with the second microcontroller MCU and the driving device of the operating bed component.
And the second microcontroller MCU is used for receiving a speed regulation signal sent by the main control equipment of the operating bed component and adjusting the driving voltage output by the driving circuit to the driving equipment of the operating bed component based on the speed regulation signal.
In the embodiment of the invention, in the process of supplying power to the driving device of the operating table assembly or the power supply device in the operating lamp assembly, when the level signal of the main power supply is detected, the main/standby switching circuit enables the main power supply to directly supply power to the load, and when the level signal of the main power supply is not detected, the main/standby switching circuit enables the output voltage of the standby power supply to be boosted to supply power to the driving device of the operating table assembly or the power supply device in the operating lamp assembly. In the scheme, the main/standby switching circuit completes the rapid switching of the main/standby power supplies by detecting the detection result of the level signal of the main power supply, and under the condition of supplying power by the standby power supply, the standby output voltage supplies power for the driving equipment of the operating bed assembly or the power supply equipment in the operating lamp assembly after being boosted, so that the problem of unstable power supply caused by voltage drop in the switching process is avoided, and the purpose of stably supplying power to a rear-end load in the switching process of the main/standby power supplies is realized.
In some of these embodiments, the power supply system further comprises a switching circuit; the switch circuit is arranged between a charging bus of the power supply system and the first load 20, and has a hot plug protection function.
In some of these embodiments, the power system further comprises a communication circuit; the communication circuit is connected with the second load and is used for communicating with the second load.
In some embodiments, the main/standby switching circuit 3 includes: a switching circuit. In some of these embodiments, the switching circuit includes an ideal diode or a first schottky diode.
In some of these embodiments, the switching circuit may include a plurality of ideal diodes connected in parallel or a plurality of first schottky diodes connected in parallel.
The main power supply 1 is connected to the first load 20 through the switching circuit.
The standby power supply 2 is connected with the first load 20 through the boosting circuit 4 and the switching circuit.
The switching circuit is configured to be turned on in a forward direction when a level signal exists in the main power supply 1, so that the main power supply 1 directly supplies power to the first load 20, and be turned off in a reverse direction when the level signal does not exist in the main power supply 1, so that the output voltage of the backup power supply 2 is boosted by the voltage boost circuit 4 and then supplies power to the first load 20.
In a specific implementation, when a level signal is present in the main power source 1, the ideal diode or the first schottky diode is turned on in a forward direction, and the main power source 1 directly supplies power to the first load 20.
When the main power supply 1 does not have a level signal, the ideal diode or the first schottky diode is turned off in a reverse direction, and the output voltage of the standby power supply 2 is boosted by the boost circuit 4 to supply power to the first load 20.
In the embodiment of the invention, the main/standby switching circuit is realized by the Schottky diode and the ideal diode. Wherein the main power supply and the backup power supply are switched by ideal diodes with very small voltage drops during the supply of the load. If the current power supply supplies power for the standby power supply, the standby power supply which supplies power at present is boosted through the boosting circuit, and the voltage required by the load is output.
In the embodiment of the invention, in the process of supplying power to the load, the main power supply and the standby power supply are switched based on the result of detecting the level signal of the power supply, so that the pressure difference between the main power supply and the standby power supply is ensured to be in a smaller state, and the problem of unstable power supply to the load caused by voltage drop in the switching process is avoided. Therefore, the purpose of stably supplying power to the rear-end load in the process of switching the main power supply and the standby power supply is achieved.
The power supply system disclosed in fig. 1 in conjunction with the above embodiment of the present invention is a schematic structural diagram of another power supply system disclosed in the embodiment of the present invention, as shown in fig. 2. The power supply system includes: the power supply comprises a main power supply 1, a standby power supply 2, a main/standby switching circuit 3, a boosting circuit 4, a second Schottky diode 5 and a voltage reduction circuit 6.
The main power supply 1 is connected with a first load 20 through a main/standby switching circuit 3.
The standby power supply 2 is connected with a first load 20 through a booster circuit 4 and a main/standby switching circuit 3.
The main power supply 1 and the standby power supply 2 are both connected with the second load 21 through the second schottky diode 5 and the voltage reduction circuit 6.
The second load 21 comprises a master device of the operating bed assembly or the operating light assembly.
The second schottky diode 5 is configured to be turned on in a forward direction when a level signal exists in the main power supply 1, so that the output voltage of the main power supply 1 is reduced by the voltage reduction circuit 6 to supply power to the second load 21, and be turned off in a reverse direction when the level signal does not exist in the main power supply 1, so that the output voltage of the standby power supply 2 is reduced by the voltage reduction circuit 6 to supply power to the second load 21.
In the embodiment of the invention, when the main control equipment of the load with low current is powered, the main power supply and the standby power supply are switched through the second Schottky diode, and if the current power supply is the main power supply, the voltage of the current power supply is reduced through the voltage reduction circuit, and the voltage required by the power supply is output. In the process of supplying power to the load, the main power supply and the standby power supply are switched through the main/standby switching circuit. If the current power supply supplies power for the standby power supply, the standby power supply which supplies power at present is boosted through the boosting circuit, and the voltage required by the load is output. Therefore, the voltage difference between the main power supply and the standby power supply is ensured to be in a small state, and the problem of unstable power supply for the load caused by voltage drop in the switching process is avoided. Therefore, the purpose of stably supplying power to the rear-end load in the process of switching the main power supply and the standby power supply is achieved.
The power supply system disclosed in fig. 1 in conjunction with the above embodiment of the present invention is a schematic structural diagram of another power supply system disclosed in the embodiment of the present invention, as shown in fig. 3. The power supply system comprises a main power supply 1, a standby power supply 2, a main/standby switching circuit 3, a booster circuit 4, a direct-current power supply 7 and a direct-current power supply port 8.
The main power supply 1 is connected with a first load 20 through a main/standby switching circuit 3.
The standby power supply 2 is connected with a first load 20 through a booster circuit 4 and a main/standby switching circuit 3.
The direct current power supply 7 is connected with the main/standby switching circuit 3 through a direct current power supply port 8.
The output voltage of the direct current power supply 7 is smaller than the output voltage of the main power supply 1 and larger than the output voltage of the standby power supply 2.
In some of these embodiments, the main power supply 1 comprises an AC/DC power supply module or an AC/DC power supply board provided with an AC/DC power supply. Optionally, the output voltage of the main power supply 10 is 24V _ AC or 24V _ DC.
In some of these embodiments, the backup power source 2 may be a lithium battery.
In some of these embodiments, the backup power supply 2 comprises two batteries in parallel. Alternatively, the parallel battery may be two lead-acid batteries connected in parallel. Optionally, the output voltage of the backup power supply 2 is 12V.
In some of these embodiments, the output voltage of the dc power supply 7 is 21V.
The main/standby switching circuit 3 is further configured to enable the main power supply 1 to directly supply power to the first load 20 when the level signal exists in the main power supply 1.
The main/standby switching circuit 3 is further configured to, when there is no level signal in the main power supply 1 and there is a level signal in the dc power supply port 8, enable the output voltage input by the dc power supply 7 through the dc power supply port 8 to supply power to the first load 20 after being boosted by the voltage boost circuit 4.
The active/standby switching circuit 3 is further configured to, under the condition that no level signal exists at both the main power supply 1 and the dc power supply port 8, boost the voltage of the standby power supply 2 by the voltage boost circuit 4 and then supply power to the first load 20.
In the embodiment of the present invention, the load is supplied with power according to the priority of the power supply, and the priority of the main power supply 10 is higher than that of the backup power supply. Specifically, the power supply with the highest priority, that is, the main power supply, starts to detect whether the power supply is online, and once the power supply with the current level is detected to be offline, the power supply with the current level is switched to supply power to the power supply with the next level.
Based on the types of the main power supply and the backup power supply disclosed in some embodiments above, the priority is, in order from high to low: the system comprises an AC/DC power supply, a direct current power supply and a standby power supply which are converted by commercial power. Preferentially detecting whether a main power supply converted from commercial power is on line, if so, supplying power by using the main power supply 24V _ AC/DC, if not, outputting 24V _ AC/DC output voltage by using the main power supply, supplying power by using the direct current power supply 21V, if not, outputting 21V output voltage by using the direct current power supply, switching to a standby power supply, and supplying power to a load by using the standby power supply, namely a lead-acid battery or a lithium battery.
Specifically, the main/standby switching circuit 12 includes a switching circuit, the switching circuit includes an ideal diode or a first schottky diode, and the first microcontroller MCU detects a level signal as an example to explain:
when the first microcontroller MCU detects a level signal of the main power source 1, the ideal diode or the first schottky diode is turned on in the forward direction, so that the main power source 1 directly supplies power to the first load 20.
When the first microcontroller MCU does not detect the level signal of the main power supply 1 and detects the level signal of the dc power supply port 8, the ideal diode or the first schottky diode is turned off in the reverse direction, and the boost circuit 4 boosts the output voltage of the dc power supply 7 accessed via the dc power supply port 8 to supply power to the first load 20.
In some of these embodiments, the power supply system further comprises a charging circuit. Accordingly, in the embodiment of the present invention, the charging circuit is further configured to, when there is no level signal in the main power supply 1 and there is a level signal in the dc power supply port 8, charge the backup power supply 2 with the output voltage input by the dc power supply 7 through the dc power supply port 8 after being stepped down.
In the embodiment of the invention, the main/standby switching circuit is realized by a Schottky diode or an ideal diode. The rapid switching between the main power supply and the standby power supply is completed by detecting the level signal of the current power supply and utilizing the Schottky diode or the ideal diode, so that the pressure difference between the main power supply and the standby power supply is ensured to be in a smaller state, and the problem of unstable power supply for a load caused by voltage drop in the switching process is avoided. Therefore, the purpose of stably supplying power to the rear-end load in the process of switching the main power supply and the standby power supply is achieved.
Fig. 4 is a schematic structural diagram of another power supply system disclosed in the embodiment of the present invention. The power supply system includes: the power supply system comprises a main power supply 1, a standby power supply 2, a main/standby switching circuit 3, a booster circuit 4, a direct-current power supply 7, a direct-current power supply port 8, a microcontroller MCU9, a charging circuit 10, a battery management circuit 11, a power consumption management circuit 12, a driving circuit 13, a switching circuit 14 and a communication circuit 15.
In some embodiments, the main/standby switching circuit 3, the boost circuit 4, the DC power port 8, the microcontroller MCU9, the charging circuit 10, the battery management circuit 11, the power management circuit 12, the driving circuit 13, the switching circuit 14, and the communication circuit 15 may be disposed on the DC module board. The DC module board can be provided with a plurality of interfaces or functional modules as a carrier.
The power supply system is connected with three power supplies, and sequentially comprises the following components according to priority levels: a main power supply 1, a dc power supply 7 and a backup power supply 2.
The first load 20 to be powered belongs to an operating room device comprising an operating light assembly for illumination during an operating room procedure or an operating bed assembly for carrying a patient during an operating room procedure.
The surgical lamp assembly includes: the operating lamp, the power supply equipment and the main control equipment of the operating lamp; the surgical bed assembly includes: a plurality of bed body backup pads, set up in the main control equipment of the drive device and operation table in corresponding bed body backup pad. The first load 20 comprises a driving device of the operating bed assembly or a power supply device in the operating lamp assembly. The second load comprises a master device in a surgical bed assembly or a surgical light assembly.
The main/standby switching circuit 3 may be the main/standby switching circuit disclosed in fig. 2, and a specific structure may be as shown in fig. 2.
The microcontroller MCU9 is configured to detect a level signal of the main power supply 1 and/or a level signal of the dc power supply 7.
The active/standby switching circuit 3 is configured to, when the microcontroller MCU9 detects a level signal of the main power supply 1, enable the main power supply 1 to directly supply power to the first load 20, when the microcontroller MCU9 does not detect the level signal of the main power supply 1, enable the output voltage of the standby power supply 2 to be boosted by the voltage boost circuit 4 to supply power to the first load 20, and, when the microcontroller MCU9 does not detect the level signal of the main power supply 1 and detects the level signal of the dc power port 8, enable the output voltage input by the dc power supply 7 through the dc power port 8 to be boosted by the voltage boost circuit 4 to supply power to the first load 20.
The charging circuit 10 is configured to charge the standby power supply 2 after the output voltage of the main power supply 1 is reduced when the microcontroller MCU9 detects the level signal of the main power supply 1, and charge the standby power supply 2 after the output voltage of the dc power supply 7 is reduced by the output voltage input through the dc power supply port 8 when the microcontroller MCU9 does not detect the level signal of the main power supply 1 and detects the level signal of the dc power supply port 8.
The battery management circuit 11 is connected with the standby power supply 2 and the microcontroller MCU 9.
The battery management circuit 11 is configured to obtain a state parameter of the standby power supply 2, and send the state parameter to the microcontroller MCU 9.
The microcontroller MCU9 is further configured to determine a standby power state according to the state parameter of the standby power supply 2, and if the standby power state does not meet the requirement, the microcontroller MCU9 controls the charging circuit 10 to stop charging.
Microcontroller MCU9 still is used for calculating the basis stand-by power supply 2's state parameter stand-by power supply 2's residual capacity, if the residual capacity instruction stand-by power supply 2 is insufficient, microcontroller MCU9 disconnection stand-by power supply 2's battery switch.
In specific implementation, the battery management circuit 11 samples the temperature, the voltage, the charging current, and the discharging current of the backup power supply 2, and feeds back the sampled state parameters of each backup power supply 2 to the microcontroller MCU9, and once the microcontroller MCU9 determines that the backup power supply 2 is in an over-temperature state, an over-voltage state, an over-current state, or the like, the microcontroller MCU9 controls the charging circuit 10 to stop charging the backup power supply.
The microcontroller MCU9 also calculates the remaining power according to the obtained status parameters, and feeds back the obtained remaining power to the main control device of the load. Once the remaining power indicates that the power loss condition of the standby power supply 2 occurs, the microcontroller MCU9 may control the battery switch of the standby power supply 2 to turn off by sending a RELAY _ EN signal, so as to implement zero power consumption of the battery and enable the power supply system to be in a low power consumption state.
The power consumption management circuit 12 is configured to enable the microcontroller MCU9 to be in a standby state, or enable the standby power supply 2 to stop supplying power to the second load 21 when the microcontroller MCU9 detects a switch off signal or the voltage of the standby power supply 2 is lower than a protection value.
The driving circuit 13 is connected with the microcontroller MCU9 and the driving device of the operating bed component.
In some embodiments, the driving circuit 13 may be an oil pump driving circuit or a hydraulic driving circuit.
The microcontroller MCU9 receives a speed regulation signal sent by the main control device of the operating bed assembly, and adjusts the driving voltage output by the driving circuit 13 to the driving device of the operating bed assembly based on the speed regulation signal.
In a specific implementation, the microcontroller MCU9 adjusts the duty ratio of the PWM signal sent to the driving circuit 13 according to the received speed-adjusting signal, so that the driving voltage output by the driving circuit 13 to the driving device of the surgical bed assembly is continuously in a high level state within a pulse period, that is, the output voltage of the driving circuit 13 is close to or equal to the input voltage, thereby achieving the purpose of maximizing the speed adjustment.
The switch circuit 14 is arranged between the charging bus of the power supply system and the first load 20, and the switch circuit has a hot plug protection function, so that the power supply system can be prevented from being burnt out by hot plug action between the power supply system and the load.
The communication circuit 15 is connected to the second load 21 for communicating with the second load 21.
In some embodiments, the second loads 21 are respectively disposed on the corresponding main control boards. For example, the master control device of the operating bed assembly is disposed on the master control board of the operating bed assembly, and the master control device of the operating lamp assembly is disposed on the master control board of the operating lamp assembly. The communication circuit 15 of the power supply system communicates with a main control board of the operating table through an RS232 protocol, and the communication circuit 15 communicates with main control equipment of the operating lamp assembly through an LIN communication mode.
In a specific implementation, the main content of the communication between the power system and the second load 21 includes a power supply status, a driving status, and the like.
Based on the power supply system disclosed by the embodiment of the invention, the embodiment of the invention also discloses an operating lamp.
As shown in fig. 5, the surgical lamp includes a surgical lamp assembly 51 and a power supply system 52.
The power supply system 52 may be the power supply system disclosed in the above embodiments fig. 1 to 4.
The surgical lamp assembly 51 includes: an operation lamp 511, a power supply device 512 and a main control device 513 of the operation lamp.
The power system 52 is connected to the surgical light assembly 51 for switching between a primary power supply and a backup power supply to power the power supply 512 and/or the surgical light master device 513.
In some of these embodiments, if there is a dc power source, the power system 52 is further configured to switch the main power source 1, the backup power source 2, and the dc power source 7 to supply power to the power supply device 512 and/or the main control device 513 of the operating lamp.
Based on the power supply system disclosed by the embodiment of the invention, the embodiment of the invention also discloses an operating table.
As shown in fig. 6, the surgical bed includes a surgical bed assembly 61 and a power supply system 62.
The power supply system 62 may be the power supply system disclosed in the above embodiments fig. 1 to 4.
In some embodiments, the operating table assembly 61 includes a plurality of bed supporting plates 611, a driving device 612 disposed on the corresponding bed supporting plate, and a main control device 613 of the operating table, and the power system of the power system 62 further includes a driving circuit.
The plurality of bed support plates include, but are not limited to, a table top, a column system and a base, wherein the table top may be composed of a plurality of support plate assemblies for correspondingly supporting different body parts of a patient, such as a head plate, a back plate, a waist plate, a leg plate, a hip plate, a foot plate or an extension plate.
The power system 62 is connected to the operating table assembly 61, and is configured to switch between a main power supply and a standby power supply to supply power to the driving device 612 and/or the main control device 613 of the operating table.
In some of these embodiments, if there is a dc power source, the power system 62 is further configured to switch the main power source 1, the backup power source 2, and the dc power source 7 to supply power to the driving device 612 and/or the main control device 613 of the operating table.
If the power system 62 includes a driving circuit. The power system 62 receives a speed regulation signal sent by the main control device 613 of the operating bed, and adjusts the driving circuit to output a driving voltage to the driving device 612 based on the speed regulation signal, and the driving device 612 makes the corresponding bed body support plate 611 act based on the driving voltage.
In some of these embodiments, the drive device comprises an electric motor or a hydraulic drive device.
Taking a transmission part driven by a motor as an example, the processing/controller drives the power equipment through a power driving circuit, so that the power equipment controllably moves under the driving of the processing/controller, and in the moving process, one or more force transmission/conversion equipment (such as gears or transmission shafts) drive a control object (a waist board, a leg board and the like) to move. The power plant may be an electromagnetic device that converts or transmits electrical energy according to the laws of electromagnetic induction, such as a Permanent Magnet (PM) motor, a reactive (VR) motor, and a Hybrid (HB) motor.
Taking a hydraulically driven transmission part as an example, the transmission part at least comprises an electromagnetic valve, an oil cylinder and an oil pump. The processing/controller detects a control signal in the control part, adjusts the conduction direction of the electromagnetic valve according to the control signal, and controls the oil pump driving circuit according to the control signal to control the oil pump to work or stop, oil between the oil pump and the oil cylinder flows through the conduction direction of the electromagnetic valve, the oil capacity of cavities on two sides of the piston in the oil cylinder changes correspondingly, so that the position of the piston changes correspondingly, and finally the position of at least one part in the table top connected with the piston is driven to change due to the movement of the piston.
In the embodiment of the invention, the driving voltage output by the driving circuit to the driving device is adjusted based on the speed regulating signal sent by the main control device of the operating bed, so that the output voltage output to the operating bed is ensured to be equal to or close to the input voltage, and the aim of maximizing the speed regulation is fulfilled.
In some embodiments, a power system may be multiplexed between the operating table and the surgical lights or like loads. That is to say, in the embodiment of the present invention, the power supply system is used as a power supply system for load multiplexing of an operating table, an operating lamp, and the like, and in a process of supplying power to the operating table and the operating lamp, the detection result of the level signal of the power supply is detected to switch the power supply from the main/standby switching circuit, so that a voltage difference between the power supplies is ensured to be in a small state, and a problem of unstable power supply to the operating lamp and the operating table due to voltage drop in a switching process is avoided. Therefore, the purpose of stably supplying power to the rear-end operation lamp and the operating bed in the process of switching the main power supply and the standby power supply is achieved.
Based on the power supply system disclosed by the embodiment of the invention, the embodiment of the invention also discloses a power supply management method of the operating room equipment. The power management method of the operating room equipment is used for a power supply system, wherein the power supply system comprises a processor, a main power supply, a standby power supply, a booster circuit and a main/standby switching circuit; the operating room equipment comprises an operating lamp assembly for illuminating in the operating room operation process or an operating bed assembly for carrying a patient in the operating room operation process. The processor in the power supply system is equivalent to the first microcontroller MCU, and the power supply system is also equivalent to the power supply system including the first microcontroller MCU disclosed in the above embodiment of the present invention.
As shown in fig. 7, the power management method of the operating room device includes the following steps:
s701: detecting a level signal of the main power supply.
S702: and driving the main/standby switching circuit according to the change of the level signal of the main power supply, so that the standby power supply supplies power to the driving equipment of the operating table assembly or the power supply equipment in the operating lamp assembly after being boosted, or the main power supply supplies power to the driving equipment of the operating table assembly or the power supply equipment in the operating lamp assembly.
In some of these embodiments, the active-standby switching circuit includes an ideal diode or a first schottky diode; the specific implementation process of S802 is:
when the existence of the level signal of the main power supply is detected, the ideal diode or the first Schottky diode is conducted in the forward direction, and the main power supply directly supplies power to the driving device of the operating bed assembly or the power supply device in the operating lamp assembly.
Or when the absence of the level signal of the main power supply is detected, the ideal diode or the first Schottky diode is cut off in a reverse direction, and the output voltage of the standby power supply is boosted by the booster circuit to supply power to the driving device of the operating bed assembly or the power supply device in the operating lamp assembly.
In some of these embodiments, the power supply system further comprises a second schottky diode and a voltage step-down circuit; the power management method of the operating room device further comprises the following steps:
when the level signal of the main power supply is detected to exist, the second Schottky diode is conducted in the forward direction, and the output voltage of the main power supply is reduced by the voltage reduction circuit to supply power to the operating bed assembly or the main control equipment of the operating lamp assembly.
Or when the level signal of the main power supply is detected to be absent, the second Schottky diode is cut off in the reverse direction, and the output voltage of the standby power supply is reduced by the voltage reduction circuit to supply power to the operating bed assembly or the main control equipment of the operating lamp assembly.
In some embodiments, the power supply system further includes a dc power supply and a dc power supply port, and the dc power supply is connected to the active/standby switching circuit through the dc power supply port; the specific implementation process of S802 includes:
when the level signal of the main power supply is detected to be absent and the level signal of the direct current power supply port is detected to be present, the main-standby switching circuit is driven, so that the output voltage input by the direct current power supply port is boosted by the direct current power supply to supply power for the driving equipment of the operating bed component or the power supply equipment of the operating lamp component.
Or when the level signal of the main power supply and the level signal of the direct-current power supply port are detected to be absent, the main/standby switching circuit is driven, and the standby power supply supplies power to the driving device of the operating table assembly or the power supply device in the operating lamp assembly after being boosted.
In some embodiments, the method for power management of operating room equipment further comprises:
and switching the main power supply or the direct-current power supply through the main/standby switching circuit according to the change of the level signal of the main power supply, so that the output voltage of the main power supply or the direct-current power supply is reduced and then the standby power supply is charged.
In some embodiments, the method for power management of operating room equipment further comprises:
and acquiring the state parameters of the standby power supply, and controlling the main power supply or the direct current power supply to stop charging the standby power supply when the state of the standby power supply is determined to not meet the requirements according to the state parameters of the standby power supply.
And/or calculating the residual capacity of the standby power supply according to the state parameters of the standby power supply, and disconnecting the standby power supply if the residual capacity indicates that the standby power supply is insufficient.
In some embodiments, the power supply system further includes a first switch tube and a second switch tube; the power management method of the operating room device further comprises the following steps:
when the processor detects that a switch turn-off signal or the voltage of the standby power supply is lower than a protection value, the first switch tube is controlled to be disconnected, and the standby power supply stops supplying power to the operating bed assembly or the main control equipment of the operating lamp assembly.
And/or when the processor controls the second switching tube to be disconnected, the second switching tube is in a standby state.
In some of these embodiments, the power supply system further comprises a driver circuit; the power management method of the operating room device further comprises the following steps:
and receiving a speed regulating signal sent by the main control equipment of the operation bed component, and adjusting the driving voltage output by the driving circuit to the driving equipment of the operation bed component based on the speed regulating signal.
In some of these embodiments, the power system further comprises a communication circuit; the power management method of the operating room device further comprises the following steps:
and communicating with the operating bed assembly or the main control equipment of the operating lamp assembly based on the communication circuit.
In the embodiment of the invention, the power supply management method of the operating room equipment drives the main/standby switching circuit according to the change of the level signal of the main power supply by detecting the level signal of the main power supply, so that the standby power supply supplies power to the driving equipment of the operating bed assembly or the power supply equipment in the operating lamp assembly after being boosted, or the main power supply supplies power to the driving equipment of the operating bed assembly or the power supply equipment in the operating lamp assembly. In the scheme, the main/standby switching circuit completes the rapid switching of the main/standby power supplies by detecting the detection result of the level signal of the main power supply, so that the problem of unstable power supply caused by voltage drop in the switching process is avoided, and the purpose of stably supplying power to a rear-end load in the switching process of the main/standby power supplies is realized.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, the system or system embodiments are substantially similar to the method embodiments and therefore are described in a relatively simple manner, and reference may be made to some of the descriptions of the method embodiments for related points.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (31)

1. A power supply management method of operating room equipment is characterized in that the method is used for a power supply system, the power supply system comprises a processor, a main power supply, a standby power supply, a booster circuit and a main/standby switching circuit, wherein the output voltage of the main power supply is greater than that of the standby power supply; the operating room equipment comprises an operating lamp assembly for illuminating in the operating room operation process or an operating bed assembly for carrying a patient in the operating room operation process; the method comprises the following steps:
detecting a level signal of the main power supply;
and driving the main/standby switching circuit according to the change of the level signal of the main power supply, so that the standby power supply supplies power to the driving equipment of the operating table assembly or the power supply equipment in the operating lamp assembly after being boosted, or the main power supply supplies power to the driving equipment of the operating table assembly or the power supply equipment in the operating lamp assembly.
2. The power management method of claim 1, wherein the active-standby switching circuit comprises an ideal diode or a first schottky diode; the driving the main/standby switching circuit according to the change of the level signal of the main power supply to make the standby power supply power to the driving device of the operating table assembly or the power supply device in the operating lamp assembly after boosting, or to make the main power supply power to the driving device of the operating table assembly or the power supply device in the operating lamp assembly, includes:
when the existence of a level signal of the main power supply is detected, the ideal diode or the first Schottky diode is conducted in the forward direction, and the main power supply directly supplies power to the driving equipment of the operating bed assembly or the power supply equipment in the operating lamp assembly;
when the absence of the level signal of the main power supply is detected, the ideal diode or the first Schottky diode is in reverse cut-off, and the output voltage of the standby power supply is boosted by the booster circuit to supply power to the driving device of the operating bed assembly or the power supply device in the operating lamp assembly.
3. The power management method of claim 1, wherein the power system further comprises a second schottky diode and a voltage step-down circuit; the method further comprises the following steps:
when the level signal of the main power supply is detected to exist, a second Schottky diode is conducted in the forward direction, and the output voltage of the main power supply is reduced by the voltage reduction circuit to supply power to the operating bed assembly or the main control equipment of the operating lamp assembly;
when the situation that the level signal of the main power supply does not exist is detected, the second Schottky diode is cut off in the reverse direction, and the output voltage of the standby power supply is reduced by the voltage reduction circuit to supply power to the operating bed assembly or the main control equipment of the operating lamp assembly.
4. The power management method of claim 1, wherein the power system further comprises a dc power source and a dc power source port, and the dc power source is connected to the main/standby switching circuit through the dc power source port; the output voltage of the direct current power supply is smaller than the output voltage of the main power supply and larger than the output voltage of the standby power supply; the driving the main/standby switching circuit according to the change of the level signal of the main power supply to make the standby power supply power to the driving device of the operating table assembly or the power supply device in the operating lamp assembly after boosting, or to make the main power supply power to the driving device of the operating table assembly or the power supply device in the operating lamp assembly, includes:
when the level signal of the main power supply is detected to be absent and the level signal of the direct current power supply port is detected to be present, the main-standby switching circuit is driven, so that the output voltage input by the direct current power supply port is boosted by the direct current power supply to supply power for the driving equipment of the operating bed component or the power supply equipment of the operating lamp component.
5. The power management method of claim 4, further comprising:
when the level signal of the main power supply and the level signal of the direct-current power supply port are detected to be absent, the main/standby switching circuit is driven, and the standby power supply supplies power to driving equipment of the operating table assembly or power supply equipment in the operating lamp assembly after being boosted.
6. The method of power management according to claim 4, further comprising:
and switching the main power supply or the direct-current power supply through the main/standby switching circuit according to the change of the level signal of the main power supply, so that the output voltage of the main power supply or the direct-current power supply is reduced and then the standby power supply is charged.
7. The method of power management according to claim 6, the method further comprising:
acquiring state parameters of the standby power supply, and controlling the main power supply or the direct current power supply to stop charging the standby power supply when the state of the standby power supply is determined to not meet the requirements according to the state parameters of the standby power supply;
and/or calculating the residual capacity of the standby power supply according to the state parameters of the standby power supply, and disconnecting the standby power supply if the residual capacity indicates that the standby power supply is insufficient.
8. The power management method according to any one of claims 1 to 7, wherein the power system further comprises a first switch tube and a second switch tube; the method further comprises the following steps:
when the processor detects that a switch turn-off signal or the voltage of the standby power supply is lower than a protection value, the processor controls the first switch tube to be switched off, so that the standby power supply stops supplying power to the operating bed assembly or the main control equipment of the operating lamp assembly;
and/or when the processor controls the second switching tube to be disconnected, the second switching tube is in a standby state.
9. The power management method according to any one of claims 1 to 7, the power system further comprising a driver circuit; the method further comprises the following steps:
and receiving a speed regulating signal sent by the main control equipment of the operation bed component, and adjusting the driving voltage output by the driving circuit to the driving equipment of the operation bed component based on the speed regulating signal.
10. The power management method according to any one of claims 1 to 7, the power system further comprising a communication circuit; the method further comprises the following steps:
and communicating with the operating bed assembly or the main control equipment of the operating lamp assembly based on the communication circuit.
11. A power supply system, comprising: the main power supply, the standby power supply, the booster circuit and the main/standby switching circuit;
the main power supply is connected with driving equipment of an operating bed component or power supply equipment in an operating lamp component through the main/standby switching circuit;
the standby power supply is connected with the driving equipment of the operating bed component or the power supply equipment in the operating lamp component through the booster circuit and the main/standby switching circuit;
wherein the output voltage of the main power supply is greater than that of the standby power supply, the operating table assembly is used for bearing a patient in an operating room operation process, and the operating lamp assembly is used for illuminating in the operating room operation process;
the main/standby switching circuit switches the standby power supply and the main power supply according to the change of the level signal of the main power supply, so that the standby power supply supplies power to the driving equipment of the operating bed assembly or the power supply equipment in the operating lamp assembly after being boosted by the booster circuit, or the main power supply supplies power to the driving equipment of the operating bed assembly or the power supply equipment in the operating lamp assembly.
12. The power supply system according to claim 11, wherein the main-standby switching circuit includes: an ideal diode or a first schottky diode;
the main power supply is connected with the driving device of the operating bed component or the power supply device in the operating lamp component through the ideal diode or the first Schottky diode;
the standby power supply is connected with the power supply device in the driving device of the operating bed component or the operating lamp component through the booster circuit and the ideal diode, or the standby power supply is connected with the power supply device in the driving device of the operating bed component or the operating lamp component through the booster circuit and the first Schottky diode;
the ideal diode or the first Schottky diode is used for conducting in the forward direction when a level signal exists in the main power supply, so that the main power supply directly supplies power to the driving equipment of the operating bed assembly or the power supply equipment in the operating lamp assembly, and is cut off in the reverse direction when the level signal does not exist in the main power supply, so that the output voltage of the standby power supply is boosted by the booster circuit and then supplies power to the driving equipment of the operating bed assembly or the power supply equipment in the operating lamp assembly.
13. The power supply system according to claim 11, further comprising: a second schottky diode and a voltage step-down circuit;
the main power supply and the standby power supply are connected with the main control equipment of the operating bed assembly or the operating lamp assembly through the second Schottky diode and the voltage reduction circuit;
and the second Schottky diode is used for conducting in the forward direction when the level signal exists in the main power supply, so that the output voltage of the main power supply is reduced by the voltage reduction circuit and then supplies power to the main control equipment of the operating bed assembly or the operating lamp assembly, and is cut off in the reverse direction when the level signal does not exist in the main power supply, so that the output voltage of the standby power supply is reduced by the voltage reduction circuit and then supplies power to the main control equipment of the operating bed assembly or the operating lamp assembly.
14. The power supply system according to claim 11, further comprising: a DC power supply and a DC power port;
the direct current power supply is connected with the main/standby switching circuit through the direct current power supply port;
the main/standby switching circuit is further configured to enable the dc power supply to supply power to the driving device of the surgical bed assembly or the power supply device of the surgical lamp assembly after the output voltage input by the dc power supply port is boosted when the level signal does not exist in the main power supply and the level signal exists in the dc power supply port.
15. The power system of claim 14, wherein the active-standby switching circuit is further configured to boost the standby power to power a driving device of the surgical bed assembly or a power supply device in the surgical lamp assembly when no level signal exists at the main power supply port and the dc power supply port.
16. The power supply system according to claim 11, further comprising: a charging circuit;
the charging circuit is used for charging the standby power supply after the output voltage of the main power supply is reduced under the condition that the level signal exists in the main power supply; or,
under the condition that power supply system still includes DC power supply and DC power supply port, charging circuit still is used for being in the main power does not exist the level signal, and under the condition that DC power supply port exists the level signal, makes DC power supply passes through the output voltage of DC power supply port input is for stand-by power supply charges after stepping down.
17. The power supply system according to any one of claims 11 to 16, characterized by comprising: a first microcontroller MCU;
the first microcontroller MCU is used for detecting a level signal of the main power supply, sending a switching signal to the main/standby switching circuit when the level signal of the main power supply is detected, enabling the main power supply to directly supply power to the driving equipment of the operating bed component or the power supply equipment in the operating lamp component based on the switching signal by the main/standby switching circuit, and sending the switching signal to the main/standby switching circuit when the level signal of the main power supply is not detected, so that the output voltage of the standby power supply is boosted by the main/standby switching circuit based on the switching signal to supply power to the driving equipment of the operating bed component or the power supply equipment in the operating lamp component.
18. The power supply system of claim 17, further comprising: a battery management circuit;
the battery management circuit is used for acquiring the state parameters of the standby power supply and sending the state parameters to the first microcontroller MCU;
the first microcontroller MCU is also used for calculating the residual electric quantity of the standby power supply based on the state parameters of the standby power supply, and if the residual electric quantity indicates that the standby power supply is insufficient, the microcontroller MCU disconnects a battery switch of the standby power supply; or,
and if the power supply system further comprises a charging circuit, the first microcontroller MCU is further used for determining the state of the standby power supply according to the state parameters of the standby power supply, and if the state of the standby power supply does not meet the requirements, the first microcontroller MCU controls the charging circuit to stop charging.
19. The power supply system of claim 17, further comprising: a power management circuit comprising a first switching tube disposed on a path between the standby power supply and a master control device of the surgical bed assembly or surgical light assembly;
the first microcontroller MCU is also used for controlling the first switch tube to be disconnected when detecting that a switch turn-off signal or the voltage of the standby power supply is lower than a protection value, so that the standby power supply stops supplying power to the main control equipment of the operating bed assembly or the operating lamp assembly; and/or the presence of a gas in the gas,
the power consumption management circuit further comprises a second switch tube, and the second switch tube is connected with the first microcontroller MCU;
and the first microcontroller MCU is also used for controlling the first microcontroller MCU to be in a standby state when the second switch tube is disconnected.
20. The power supply system of claim 17, further comprising: a drive circuit;
the driving circuit is connected with the first microcontroller MCU and the driving device of the operating bed component;
the first microcontroller MCU is also used for receiving a speed regulation signal sent by the main control equipment of the operation bed component and adjusting the driving voltage output by the driving circuit to the driving equipment of the operation bed component based on the speed regulation signal.
21. The power supply system according to any one of claims 11 to 16, characterized by comprising: a control switch;
the control switch is connected with the main power supply and is used for being switched on when a level signal exists in the main power supply or being switched off when the level signal does not exist in the main power supply;
the main/standby switching circuit is further configured to boost the output voltage of the standby power supply to supply power to the driving device of the operating bed assembly or the power supply device in the operating lamp assembly when the control switch is turned off, or to supply power to the driving device of the operating bed assembly or the power supply device in the operating lamp assembly when the control switch is turned on.
22. The power supply system of claim 21, further comprising a second microcontroller MCU and a battery management circuit;
the battery management circuit is used for acquiring the state parameters of the standby power supply and sending the state parameters to the second microcontroller MCU;
the second microcontroller MCU is also used for calculating the residual electric quantity of the standby power supply based on the state parameters of the standby power supply, and if the residual electric quantity indicates that the standby power supply is in power shortage, the second microcontroller MCU disconnects a battery switch of the standby power supply; or,
and if the power supply system further comprises a charging circuit, the second microcontroller MCU is further used for determining the state of the standby power supply according to the state parameters of the standby power supply, and if the state of the standby power supply does not meet the requirements, the second microcontroller MCU controls the charging circuit to stop charging.
23. The power supply system of claim 21, further comprising a second microcontroller MCU and a power consumption management circuit;
the power consumption management circuit comprises a first switch tube, and the first switch tube is arranged on a path between the standby power supply and the main control equipment of the operating bed assembly or the operating lamp assembly;
the second microcontroller MCU is also used for controlling the first switch tube to be disconnected when detecting that a switch turn-off signal or the voltage of the standby power supply is lower than a protection value, so that the standby power supply stops supplying power to the main control equipment of the operating bed assembly or the operating lamp assembly; and/or the presence of a gas in the gas,
the power consumption management circuit further comprises a second switch tube, and the second switch tube is connected with the second microcontroller MCU;
and the second microcontroller MCU is also used for controlling the second switching tube to be in a standby state when the second switching tube is disconnected.
24. The power supply system of claim 21, further comprising: the second microprocessor MCU and the driving circuit;
the driving circuit is connected with the second microcontroller MCU and the driving device of the operating bed component;
and the second microcontroller MCU is used for receiving a speed regulation signal sent by the main control equipment of the operating bed component and adjusting the driving voltage output by the driving circuit to the driving equipment of the operating bed component based on the speed regulation signal.
25. The power supply system according to any one of claims 11 to 16, further comprising: a switching circuit;
the switch circuit is arranged between a charging bus of the power supply system and the driving device of the operating bed assembly or the power supply device in the operating lamp assembly, and has a hot plug protection function.
26. The power supply system according to any one of claims 11 to 16, further comprising: a communication circuit;
the communication circuit is connected with the main control equipment of the operating bed assembly or the operating lamp assembly and is used for communicating with the main control equipment of the operating bed assembly or the operating lamp assembly.
27. The power supply system of any one of claims 11 to 16, wherein the primary power supply comprises an AC/DC power supply module.
28. The power system of any one of claims 11 to 16, wherein the backup power source comprises a lithium battery, or two parallel lead acid batteries.
29. A power supply system, comprising: the system comprises a main power supply, a standby power supply, a direct-current power supply port, a booster circuit, a main-standby switching circuit, a charging circuit, a microcontroller MCU (microprogrammed control unit), a battery management circuit, a power consumption management circuit, a driving power supply and a communication circuit;
the microcontroller MCU is used for detecting a level signal of the main power supply and/or a level signal of the direct-current power supply;
the main/standby switching circuit is used for enabling the main power supply to directly supply power to the driving equipment of the operating bed component or the power supply equipment in the operating lamp component when the microcontroller MCU detects the level signal of the main power supply, enabling the output voltage of the standby power supply to supply power to the driving equipment of the operating bed component or the power supply equipment in the operating lamp component after being boosted by the boosting circuit when the microcontroller MCU does not detect the level signal of the main power supply and detects the level signal of the DC power supply port, and enabling the output voltage input by the DC power supply through the DC power supply port to supply power to the driving equipment of the operating bed component or the power supply equipment in the operating lamp component after being boosted by the boosting circuit when the microcontroller MCU does not detect the level signal of the main power supply and detects the level signal of the DC power supply port;
the charging circuit is used for charging the standby power supply after the output voltage of the main power supply is reduced when the microcontroller MCU detects a level signal of the main power supply, and charging the standby power supply after the output voltage input by the DC power supply through the DC power supply port is reduced when the microcontroller MCU does not detect the level signal of the main power supply and detects the level signal of the DC power supply port;
the battery management circuit is used for acquiring the state parameters of the standby power supply and sending the state parameters to the microcontroller MCU;
the microcontroller MCU is further used for determining the state of the standby power supply according to the state parameters of the standby power supply, controlling the charging circuit to stop charging if the state of the standby power supply does not meet the requirements, calculating the residual electric quantity of the standby power supply by the microcontroller MCU, and disconnecting the battery switch of the standby power supply if the residual electric quantity indicates that the standby power supply is insufficient;
the power consumption management circuit is used for enabling the microcontroller MCU to be in a standby state, or enabling the standby power supply to stop supplying power to the main control equipment of the operating bed component or the operating lamp component when the microcontroller MCU detects that a switch turn-off signal or the voltage of the standby power supply is lower than a protection value;
the microcontroller MCU is also used for adjusting the driving voltage output by the driving circuit to the driving equipment of the operating bed component based on receiving a speed regulating signal sent by the main control equipment of the operating bed component or the operating lamp component;
the communication circuit is used for communicating with the main control equipment of the operating table assembly or the operating lamp assembly.
30. An operating lamp comprising an operating lamp assembly and the power supply system of any one of claims 11 to 29;
the surgical lamp assembly includes: the operating lamp, the power supply equipment and the main control equipment of the operating lamp;
the power supply system is connected with the operating lamp assembly and used for switching power supplies to supply power to the power supply equipment and/or the main control equipment of the operating lamp.
31. An operating bed, comprising: a surgical bed assembly and the power supply system of any one of claims 11 to 29;
the surgical bed assembly includes: the bed body supporting plates, the driving devices arranged on the corresponding bed body supporting plates and the main control device of the operating bed;
the power supply system is connected with the operating bed assembly and used for switching a power supply to supply power to the driving device and/or the main control device of the operating bed;
if the power supply system further comprises a driving circuit;
the power supply system is also used for receiving a speed regulation signal sent by a main control device of the operating bed and adjusting the driving circuit to output driving voltage to the driving device based on the speed regulation signal;
and the driving equipment is used for enabling the corresponding bed body supporting plate to act based on the driving voltage.
CN202010070670.6A 2020-01-21 2020-01-21 Power management method and power system of operating room equipment, operating lamp and operating table Pending CN111277039A (en)

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