CN110652313A - Energy supply and power distribution device for a computed tomography apparatus - Google Patents
Energy supply and power distribution device for a computed tomography apparatus Download PDFInfo
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- CN110652313A CN110652313A CN201910932408.5A CN201910932408A CN110652313A CN 110652313 A CN110652313 A CN 110652313A CN 201910932408 A CN201910932408 A CN 201910932408A CN 110652313 A CN110652313 A CN 110652313A
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- 238000002591 computed tomography Methods 0.000 title claims abstract description 135
- 238000013170 computed tomography imaging Methods 0.000 claims abstract description 33
- 238000005265 energy consumption Methods 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 25
- 230000001502 supplementing effect Effects 0.000 claims description 48
- 239000003990 capacitor Substances 0.000 claims description 19
- 239000000872 buffer Substances 0.000 claims description 16
- 239000012536 storage buffer Substances 0.000 claims description 9
- 238000004590 computer program Methods 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 3
- 229910021389 graphene Inorganic materials 0.000 claims description 3
- 229910001416 lithium ion Inorganic materials 0.000 claims description 3
- 238000003384 imaging method Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 10
- 239000013589 supplement Substances 0.000 description 7
- 230000003139 buffering effect Effects 0.000 description 5
- 230000000295 complement effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/02—Devices for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
- A61B6/03—Computerised tomographs
- A61B6/032—Transmission computed tomography [CT]
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/56—Details of data transmission or power supply, e.g. use of slip rings
Abstract
The invention discloses an energy supply and power distribution device for a computer tomography imaging device and a related method, wherein the energy supply and power distribution device comprises: a first module; an output port for providing power input to a plurality of components of a computed tomography imaging apparatus; and when the stored energy of the first module exceeds an energy threshold value, supplying required energy and power to at least the instantaneous high-power energy consumption component of the computed tomography imaging device through the output port. The energy supply and power distribution device provided by the invention ensures that the computed tomography equipment does not depend on a medical equipment special line any more, reduces the cost of adding the medical equipment special line in a hospital, can be applied to remote places with poor power grid quality, and reduces the requirement of the computed tomography equipment on a high-quality power network. The energy supply and power distribution device has energy and the energy is expandable, so that the application range of the computed tomography system is expanded.
Description
Technical Field
The present invention relates to the field of medical devices, and more particularly, to an energy supply and power distribution apparatus for a computed tomography device, a computed tomography system, and related methods.
Background
The statements in this section merely provide background information related to the present disclosure and may not constitute prior art, nor is it intended that such statements be considered as admissions of prior art that have been disclosed or known to the public at the time of filing.
In a Computed Tomography (CT) apparatus, a high voltage generator drives a bulb to generate X-rays during scanning imaging, the output energy of the high voltage generator is usually divided into several levels, for example, 80kV, 100kV, 120kV or 140kV, and in some special cases, the highest voltage may be higher. During operation, the overall ac input current is large, and can reach substantially 100 amps or more. Therefore, the computed tomography apparatus has extremely high requirements on energy supply, and usually the medical equipment special line supplies power capacity of more than 80 kVA.
Fig. 1 is a schematic diagram of energy supply Distribution of a more conventional computed tomography apparatus, in which a medical apparatus line 10 outputs an ac voltage of about 380V, and Power Distribution units 20 (PDU) distribute Power of the Power output from the medical apparatus line 10 to a gantry 32, a scanning bed 34, a console 36, etc. of a computed tomography apparatus 30 to meet Power requirements of different components.
For newly purchasing a computer tomography imaging device in a hospital, a medical device special line needs to be additionally arranged or the original line needs to be increased in capacity, the construction cost of the special line relates to pipeline installation and line laying, the cost is not trivial, and the cost is up to dozens of ten thousand yuan in some cases.
In the course of completing the present invention, the inventor found that, for CT scanning, one CT scanning is about 8 minutes, but the time required for actually operating at high power is only as short as several seconds, and in extreme application, it is also tens of seconds. In order to support such instantaneous high-power scanning, a special line of medical equipment must be arranged, and the economic benefit and the social benefit are low.
Disclosure of Invention
The technical problem to be solved by the invention is to provide an energy supply and power distribution device for a computed tomography imaging device, a computed tomography imaging system, a related buffer energy interval configuration method and a CT scanning frequency reminding method, which do not depend on a traditional medical device special line any more and reduce the construction cost of a new special line when a hospital purchases the computed tomography imaging device.
To solve the above problems, the present invention provides an energy supply and power distribution apparatus for a computed tomography apparatus, comprising: a first module for storing energy; an output port connected with the computed tomography imaging apparatus for providing power input to a plurality of components of the computed tomography imaging apparatus, the plurality of components including an instantaneous high power consuming component and a general power consuming component; and when the stored energy of the first module exceeds an energy threshold value, supplying required energy and power to at least the instantaneous high-power energy consumption component of the computed tomography imaging device through the output port.
Preferably, the instantaneous high power consumption component comprises at least one of: high pressure generator bulb system part, rotor motor.
Preferably, the device further comprises a second module, the second module is connected to the output port and is used for providing the required energy and power to the general power consumption component of the computed tomography imaging apparatus through the output port, and the second module is a battery module.
Preferably, the general power consuming components include at least one of: the device comprises a PCB (printed circuit board), a DMS (digital distribution system) data acquisition board, a temperature control system, a display screen, a scanning bed or a console.
Preferably, the apparatus further comprises: the energy supplementing port is used for receiving electric energy provided by an energy supplementing network or equipment, and the power provided by the energy supplementing network or equipment is less than the power provided by a special line of the medical equipment; the energy supplementing port is connected with the first module and/or the second module and used for storing electric energy provided by an energy supplementing network or equipment to the first module and/or the second module.
Preferably, the energy charging port has a specification for connecting at least one of: a mains network, a solar charging device, a wind energy charging device, a portable charging device or a low power charging device.
Preferably, the first module is connected with the second module, and the first module is used for supplementing energy to the second module or the second module is used for supplementing energy to the first module.
Preferably, the second module includes an expandable battery module.
Preferably, the first module comprises a pair of first module units, and when one of the first module units is connected to the circuit to provide energy for the computed tomography imaging device, the other first module unit is used as a standby first module unit.
Preferably, the first module at least comprises the following graphene super capacitor, lithium ion super capacitor or super capacitor battery.
Preferably, the first module provides energy and power for instantaneous high-power energy consumption components with power more than or equal to 2.2kW, and the second module provides energy and power for general power energy consumption components with power less than 2.2 kW.
Preferably, the apparatus further comprises an emergency shutdown switch for disconnecting the output port from supplying energy to the computed tomography imaging apparatus.
In order to solve the above problem, the present invention further provides a computed tomography system comprising the aforementioned energy supply and power distribution apparatus, and a computed tomography apparatus.
In order to solve the above problem, the present invention further provides a buffer energy allocation method for the energy supply and power distribution apparatus, including: determining energy complementing power; determining the average power of CT scanning in the energy supplementing period; based on the energy supplementing power and the CT scanning average power, judging whether the energy consumption for completing all CT scanning can be supported in the energy supplementing period; if the judgment can support, configuring a preset buffer energy interval; if the CT scan cannot be supported, calculating and configuring a buffer energy interval according to the expected CT scan workload.
In order to solve the above problem, the present invention further provides a method for prompting the remaining number of CT scans, which is used for the aforementioned energy supply and power distribution apparatus, and comprises: judging whether the energy consumption for completing all CT scanning can be supported or not in the energy supplementing period; if the CT scan cannot be supported by the judgment, acquiring the average power of the CT scan and the current storage buffer energy; calculating the residual CT scanning times; and generating and reminding the residual CT scanning times.
Preferably, the acquiring the average power of the CT scan includes: acquiring historical power data or empirical power data of CT scanning; and calculating the average power of the CT scan according to the historical power data or the empirical power data of the CT scan based on a learning curve.
Preferably, the method further comprises the following steps: and generating a prompt if the current storage buffer energy is smaller than the early warning energy threshold value according to the current storage buffer energy and the early warning energy threshold value.
In order to solve the above problem, the present invention further provides a non-transitory computer readable storage medium, on which computer program instructions are stored, and the computer program instructions, when executed by a processor, implement the above CT scan remaining number reminding method.
Compared with the prior art, the energy supply and power distribution device provided by the invention has the advantages that the first module supplies energy and power to the instantaneous high-power component of the computed tomography imaging, so that the computed tomography imaging equipment does not depend on a special line of medical equipment any more, the energy supply and power distribution device can store the energy and distribute the power to each component of the computed tomography imaging equipment, and the cost for adding the special line of medical equipment in a hospital is reduced. Furthermore, the first module can be charged through a low-power network or equipment, or the first module can be charged through the second module of the energy supply and power distribution device, so that the energy stored by the first module is greatly guaranteed. The energy supply and power distribution device can be used in remote places with poor power grid quality, and the requirements of computer tomography equipment on a high-quality power network are reduced. Meanwhile, under the condition that energy can not be supplemented, the device can also scientifically configure buffer energy, support the normal work of the computed tomography imaging equipment and expand the application range and the scene of the equipment.
In addition, the device of the invention can support the whole system to operate for a period of time by means of the energy held by the device under the condition of no external energy supply. The capability is strongly supported for emergency management, disaster prevention and reduction and military application.
Drawings
Fig. 1 is a schematic diagram of an energy supply allocation of a computed tomography imaging apparatus.
FIG. 2 is a schematic diagram of a computed tomography imaging apparatus energy supply and power distribution arrangement according to some embodiments of the present invention.
Fig. 3 is a schematic diagram of an external mode of the energy supply and power distribution apparatus of some embodiments of the present invention.
Fig. 4 is a schematic diagram of the internal mode of the energy supply and power distribution apparatus of some embodiments of the present invention.
Fig. 5 is a schematic illustration of an energy delivery and power distribution apparatus of some embodiments of the invention delivering energy to a gantry of a computed tomography imaging apparatus.
Fig. 6 is a schematic illustration of an energy delivery and power distribution apparatus of some embodiments of the invention delivering energy to a couch and a console of a computed tomography imaging apparatus.
FIG. 7 is a stored energy model schematic of an energy supply and power distribution apparatus of some embodiments of the present invention.
FIG. 8 is a block diagram of a backup structure of a first module according to some embodiments of the invention.
Fig. 9 is a schematic diagram of energy supply and power distribution with an extended second module according to some embodiments of the invention.
Fig. 10 is a flow chart of a method of buffer energy calculation for an energy delivery and power distribution apparatus according to some embodiments of the invention.
FIG. 11 is a power pulse waveform schematic of a CT scan according to some embodiments of the present invention.
Fig. 12 is a flow chart of a CT scan prompt generation method according to some embodiments of the invention.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the embodiments will be described in detail below with reference to the accompanying drawings.
It should be clear that the embodiments described below are only examples or some embodiments of the invention, and that for a person skilled in the art, the invention can also be applied to other similar scenarios according to these embodiments without inventive effort. These exemplary embodiments are given solely to enable those skilled in the relevant art to better understand and implement the present invention, and do not limit the scope of the invention in any way. Unless otherwise apparent from the context, or otherwise indicated, like reference numbers in the figures refer to the same structure or operation.
As used in this disclosure and in the claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are inclusive in the plural, unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements.
Although the present invention makes various references to certain modules in a system according to embodiments of the present invention, any number of different modules may be used and run on the client and/or server. The modules are merely illustrative and different aspects of the systems and methods may use different modules.
Unlike conventional power distribution units PDU, the energy supply and power distribution apparatus of the embodiments of the present invention can supply energy and distribute power independently to a computed tomography imaging apparatus, and when supplying energy and distributing power, the energy supply and power distribution apparatus of the embodiments of the present invention can reduce or even completely do not depend on an external power grid (e.g., a medical equipment dedicated line) or other energy supply equipment.
FIG. 2 is a schematic diagram of a computed tomography imaging apparatus energy supply and power distribution apparatus according to some embodiments of the present invention. The energy supply and power distribution apparatus 200 generally includes a first module 202 and a second module 204. The first module may include a capacitor module, and the capacitor module may be a super capacitor module, for example, a lithium ion capacitor or a graphene capacitor. The first module can also comprise a super capacitor battery, and the super capacitor battery has the characteristic similar to a capacitor and can provide high-power output. The first module 202 can store energy according to its characteristics, and can provide a higher power supply for the external output dc voltage.
The capacitor module can refer to the content described in the chinese patent application (entitled "a new energy computer tomography imaging apparatus", application number CN201811644960.6) previously filed by the applicant. The capacitance may be a specific energy density of not less than 100Wh/kg and a specific power density of not less than 3 kW/kg.
The second module 204 may be a battery module, which may be a conventional battery for providing a lower power energy supply.
The energy supply and power distribution apparatus 200 further includes an energy supplement port for connecting with an external energy supplement network/device 100, and when energy supplement is required for the first module 202 and/or the second module 204, the energy supplement network/device 100 supplements energy through the energy supplement port. Unlike the conventional dedicated lines for medical devices, the energy supplementing network/device 100 can use low-power and low-voltage energy supplementing, such as a universal 220V standard commercial power network, and can also use low-power energy supplementing devices, such as solar charging devices, wind charging devices, and other low-power charging devices such as some portable charging devices.
The energy supplementing network/device 100 can respectively supplement energy into the first module 202 and the second module 204 after energy adaptation is performed through the adapter 201 and the adapter 203 via the energy supplementing port.
The energy delivery and power distribution apparatus 200 also includes an output port for providing energy delivery to the computed tomography device 300 and for distributing power to various components of the computed tomography device 300.
When the energy supply and power distribution apparatus 200 is connected to the energy supply network/device 100, the energy supply and power distribution apparatus 200 is in an external mode, as shown in fig. 3, the energy supply network/device 100 supplies energy to the energy supply and power distribution apparatus 200 through the energy supply port, and the power distribution apparatus 200 supplies energy supply and power distribution to the components of the computed tomography apparatus 300. In one aspect, energy accessed by the energy replenishment port may be replenished to the first module 202 via the adapter 201, the first module 202 providing energy to the computed tomography imaging apparatus 300 via the output port 1. On the other hand, the switch is connected to the loop of the adapter 205 (the loop of the adapter 203 and the second module 204 is not connected to the output port 2, and the loop is indicated by a dotted line in fig. 3), and the energy connected to the energy supplementing port can be adapted by the adapter 205 and then supplied to the computed tomography apparatus 300 through the output port 2.
When the power supply and distribution device 200 is not connected to the energy supplementing network/device 100, the energy supply and distribution device 200 is in an internal mode, and energy and power distribution is provided to the computed tomography apparatus 300 only by the power supply and distribution device 200, as shown in fig. 4, on one hand, the first module 202 provides energy to the computed tomography apparatus 300 through the output port 1 according to the stored energy thereof. On the other hand, the switch is switched into the loop of the adapter 203 and the second module 204 (the loop of the adapter 205 is not connected to the output port 2, and the loop is indicated by a dotted line in fig. 4), and the second module 204 supplies energy to the computed tomography apparatus 300 through the output port 2 according to the energy stored by itself.
In some embodiments, the first module 202 and the second module 204 may be connected via the adapter 206, and in the internal mode, the first module 202 and the second module 204 may be complementary to each other. In most cases, the second module 204 is primarily energized to the first module 202, but in special cases, the first module 204 may be energized to the second module 202.
In some embodiments of the present invention, the energy charging network/device 100 may only charge the first module 202 or the second module 204 through the energy charging port in some configurations (e.g., only the first module, or only the second module) or in some operating states (e.g., internal mode) of the energy supply and power distribution apparatus 200. In other configurations and operating states, the energy charging network/device 100 can also simultaneously charge the first module 202 and the second module 204.
In some embodiments of the present invention, the first module 202 and/or the second module 204 may be detachable, so that the energy is supplemented in the form of replacing the module when the first module and/or the second module are fed, so that an energy supplementing port may not be required. The second module 204 is more easily detachable, so that the module can be replaced, and the first module 202 with detachable structure can also be replaced after the discharge is completed.
The computed tomography apparatus 300 generally includes a Gantry (Gantry)302, a Bed (Bed) 304, and a Console (Console)306, and the inventors have divided the energy consuming components of the computed tomography apparatus into two categories: one type is an energy consumption component requiring instantaneous high power, the power required by the component is usually more than or equal to 2.2KW, for example, the power required by the component of a bulb tube system of a high-voltage generator is usually more than 50kW, for example, the power required by a rotor motor is usually more than 3kW, and other instantaneous high power energy consumption components can be provided; another type is a general power consuming component, which typically requires less than 2.2kW, and sometimes even less than 1.5kW of power, such as a PCB board, DMS data acquisition board, temperature control system, display screen, scanning bed, console, etc.
In some embodiments of the present invention, the first module 202 of the energy supply and power distribution apparatus 200 provides energy to the instantaneous high-power energy consuming component through the output port 1, and the second module 204 provides energy to the general power energy consuming component through the output port 2 according to the power requirement of each energy consuming component. Since the output voltage of the first module 202 or the second module 204 may be different from the input voltage of each component of the computed tomography apparatus, a direct current-direct current (DC-DC) converter or a direct current-alternating current (DC-AC) converter may be disposed in the middle of the power supply line for voltage conversion.
Fig. 5 is a schematic illustration of the energy delivery and power distribution apparatus of some embodiments of the present invention delivering energy and power to a rack. The gantry 302 of the computed tomography imaging apparatus 300 may include a rotational component 3022 and a stationary component 3024. The rotating component 3022 is mounted to the fixed component 3024, the rotating component 3022 is generally ring-shaped, the rotating component 3022 can rotate around its central axis, a hollow passage is provided inside the rotating component 3022, and a patient lies on a scanning bed into the passage to perform a computed tomography scan (CT scan). Fixed component 3024 generally includes a number of fixed structures including: the temperature control device comprises a rotor motor used for driving a rotating part to rotate at a high speed, a circuit module (PCB and the like), a display screen arranged on the surface of a fixed part, and a temperature control system used for controlling the temperature. The power supply line may supply power to each energy consuming module mounted on the rotating part 3022 through a slip ring (not shown in the figure).
The energy consuming module mounted by the rotating part 3022 generally comprises: a High Voltage Generator (HVG) for generating a high voltage, which is used to boost the input voltage to a high voltage required by the X-ray tube for driving the X-ray tube 1224 to generate X-rays. The needed instantaneous power of the X-ray bulb tube is very high, and the peak value of the power during paying off can reach 50-150 kW. The rotation component 3022 further includes a DMS data acquisition board for acquiring scan data from a computed tomography scan.
In this embodiment, the first module 202 respectively outputs the signals to the instantaneous high power energy consuming components through the output port 1: the high voltage generator and the rotor motor provide energy, and the second module 204 respectively provides energy to the general power energy consumption components through the output port 2: the DMS data acquisition board, the PCB board and the display screen provide energy.
FIG. 6 is a schematic illustration of the energy delivery and power distribution apparatus of some embodiments of the present invention delivering energy and power to the scan bed and the console. The scan bed 304 and the console are both general power consuming components that can be supplied with power and power, respectively, by the second module 204 via output port 2. Typically, the bed 304 and console 306 are configured with alternating current, and the second module 204 outputs direct current, so that a direct current to alternating current (DC-AC) converter may be added for conversion. The DC-AC converter may be located on the side of the scanning bed 304, console 306, or in other cases inside the energy supply and power distribution apparatus.
The energy supply mode of only part of energy consumption components is listed above, and the energy supply mode of other energy consumption components which are not listed is similar to the energy supply mode of the energy consumption components.
To ensure that the energy supply and power distribution apparatus 200 has sufficient energy and power to supply and distribute energy to the instantaneous high power consuming components of the computed tomography device, assume that the maximum peak power requirement of the instantaneous high power consuming components of the computed tomography device during a CT scan is PScanThe threshold energy required to be stored by the first module is WthThe output power of the first module is PthThen, the output power of the first module satisfies the condition of the following formula 1. Here, the threshold energy WthAnd a threshold power PthThe representative table indicates the minimum energy and power required by the first module to support the CT scan.
Equation 1: pth≥(1+δ)*Scan
Wherein, delta is a redundancy coefficient, the larger the value of delta is more than or equal to 0, the more stable the system is, but the higher the cost is, the more generally, the value is set to 0.2 or 0.3.
See fig. 7, which is an energy storage model of the energy supply and power distribution apparatus, the energy W stored by the energy supply and power distribution apparatusMaxAnd (corresponding power P)Max) A threshold value, W, greater than the corresponding requirement for the corresponding CT scan is generally requiredMax≥Wth，PMax≥PthAnd in order to support the normal operation of the CT scan, a certain buffer energy interval W is usually setbuff。
Equation 2: wbuff＝WMax-Wth
Fig. 8 is a schematic diagram of a first module structure according to some embodiments of the present invention, in this embodiment, a first module 202 adopts a dual backup structure, the first module 202 includes a pair of a first module unit 1 and a first module unit 2, and according to controlling the switch 1 and the switch 2, when CT scanning is performed, only the first module unit 1 may be accessed to provide energy for the CT imaging apparatus, and another first module unit 2 serves as a standby module unit, and energy may be supplemented to the first module unit 2 at this time. Similarly, when CT scanning is performed, only the first module unit 2 may be accessed to provide energy for the CT imaging apparatus, and the other first module unit 1 serves as a standby module unit, and energy can be supplemented to the first module unit 1 at this time.
Fig. 9 is a schematic diagram of the energy supply and power distribution apparatus 200 according to some embodiments of the present invention, further comprising an expansion second module 207, wherein the expansion second module 207 may be an expandable battery pack, for expanding the second module 204 to supply energy to the computed tomography device 300 via the output port 2.
In some embodiments of the present invention, the energy supply and power distribution apparatus may be configured as a stand-alone power distribution cabinet, which is convenient for installation between scanning rooms or facilities of the computed tomography apparatus, and which facilitates connection of various components of the computed tomography apparatus to the energy supply and power distribution apparatus.
In some embodiments of the present invention, the energy supply and power distribution apparatus 200 further comprises an emergency shutdown switch, and the energy supplied by the energy supply and power distribution apparatus 200 to the computed tomography apparatus 300 can be shut off through the emergency port switch in case of emergency.
In some embodiments of the present invention, when the first module is in the form of a capacitor, a super capacitor, or a super capacitor battery, the first module may be formed by connecting a plurality of independent units in series and parallel, so that the first module may be configured according to energy supply requirements to configure a specific series and parallel connection manner between capacitors, thereby implementing the preset power.
Some embodiments of the invention also provide a configuration method of buffering energy of the energy supply and power distribution device on the basis of the energy supply and power distribution device. FIG. 10 is a flow chart of a configuration method for a buffer energy interval WbuffThe arrangement of (a) relates to the energy storage arrangement of the energy supply and power distribution means, further to the costs of the energy supply and power distribution means.
Step S1001, energy complementing power is determined. Due to the difference of actual conditions, different hospitals may adopt different energy supplementing modes, for example, the 220V commercial power network energy supplementing mode is adopted, or a generator with smaller power is adopted, so that the different energy supplementing modes correspond to different energy supplementing power.
Step S1002, the average power of CT scanning in the energy supplementing period is determined. Energy W capable of being supplemented in one energy supplementing period TcharEqual to the complementary power P as shown in equation 3charAnd the product of the complementary energy period T.
Equation 3: wchar＝Pchar*T
Fig. 11 illustrates the power pulse shape for a CT scan within one energy replenishment period (here corresponding to one CT scan), which is typically 8 minutes in duration, but only about 10 seconds in X-ray tube exposure time (peak power duration). Within a CT scan, the average power is much lower than the peak power. The energy supplementing period is only an example, the time length of the energy supplementing period is 8 minutes, a plurality of CT scans can be converted into one CT energy supplementing period, and in other cases, the hospital working time can be calculated as one CT energy supplementing period, or one working day can be calculated as one CT energy supplementing period.
Step S1003, based on the energy compensation power and the average CT scan power determined in previous steps S1001 and S1002, determining whether the energy consumption for completing all CT scans can be supported in the energy compensation period, that is, whether the effect of using energy and compensating energy is achieved. When the energy supplementing period is one CT scan (8 minutes), whether the energy supplemented by the energy supplementing power is more than or equal to the energy consumption of one CT scan in the 8 minutes is judged, and if so, the energy consumption capable of supporting the completion of the CT scan is shown. If the energy supplementing period is multiple CT scans (e.g., 40 minutes, 5 CT scans), it is determined whether the energy supplemented by the energy supplementing power can support the completion of 5 CT scans in the 40 minutes. The other complementary periods are similar.
Specifically, according to the average power of the current CT scan, the average energy consumption W of the scan can be obtainedmeanWhen W ischar≥WmeanIn time, the supplemented energy is larger than or equal to the energy consumed by CT scanning in a supplementing energy period T, and the supplementing energy power P is indicatedcharIt is sufficient to support the completion of the respective one or more CT scans. Here, the comparison between the energy-compensating power and the CT average power can also be set to a certain redundancy, and the redundancy can be set to be more than a certain multiple to be considered as supporting the corresponding CT scanThe energy consumption is, for example, 1.2 times. Then, the process proceeds to step S1004, where the energy buffer interval W is filledbuffCan be configured to be relatively small and only need to suppress the largest deviation in energy demand. That is, the energy storage capacity of the whole device can be not too large, and the cost is lower. In some embodiments of the invention, the buffering energy W is set to ensure that the buffering energy suppresses the maximum energy requirement deviation during scanningbuffGreater than the maximum energy required for one CT continuous scan. The bulbs of CT all have the maximum heat capacity. After a period of continuous uninterrupted exposure, the high voltage and bulb must stop exposure. During the period, the maximum energy consumed by the high pressure and the bulb tube is basically fixed and can be theoretically calculated to obtain a reference value Wref. Set up Wbuff≥1.2WrefIn the initial full-energy condition, even if the power P is complementedcharAnd the instantaneous peak power requirement of the system is far less, and the whole system can work all the time.
When W ischar＜WmeanThen, it indicates that the energy to be supplemented is less than the energy consumed by CT scanning in one energy supplementing period T, and step S1005 is entered, where more buffer energy is required to be reserved for the device, and the buffer energy W isbuffCan be calculated and configured according to the actual CT scanning requirement.
For the specific calculation of the buffering energy in step S1005, those skilled in the art can calculate the buffering energy according to three factors, that is, the duration of the energy supplementing period, the CT scan average power, and the energy supplementing power, and the description is not repeated here.
Some embodiments of the present invention further provide a CT scan reminding method, as shown in fig. 12.
Step S1201, referring to step S1003 of the previous embodiment, determines whether the energy consumption for completing all CT scans can be supported in the energy compensation period. When it is determined that the energy consumption for completing all CT scans can be supported, the buffer energy stored in the device is not consumed less because the supplementary energy is greater than the energy consumed by the CT scans, and the step S1202 is entered without performing the reminder of the remaining number of CT scans, and the reminder/prompt of the current stored energy being sufficient may also be performed in the step S1202.
When it is determined that the energy consumption for completing all CT scans cannot be supported in the energy compensation period, the energy compensation is less than the energy consumption for CT scans, and step S1203 is performed to obtain the average power for CT scans and the current storage buffer energy.
When the average power of the CT scan is obtained, historical power data of the CT scan or empirical data of the existing machine of the type may be obtained first, and then the average power of the CT scan is calculated based on the learning curve.
In step S1204, the remaining number of CT scans is calculated. As shown in equation 4, the remaining CT scan times may be based on the current stored buffer energy W obtained in the previous step S1203storAnd CT scan average energy consumption WmeanIn combination with charging energy WcharAnd (4) calculating.
Equation 4:
and step S1205, generating the CT residual scanning times according to the CT residual scanning times obtained by calculation in the previous step, and reminding a doctor of the residual scanning times.
In some embodiment modes of the present invention, in the CT scan reminding method, the method further includes: and acquiring the current storage buffer energy and the early warning energy threshold, and generating a prompt if the current storage buffer energy is smaller than the early warning energy threshold.
The invention also provides a computer tomography system which comprises the energy supply and power distribution device described in the previous embodiment and a computer tomography device.
The invention also provides a corresponding non-transitory computer readable storage medium based on the CT scanning remaining frequency reminding method, wherein computer program instructions are stored on the computer readable storage medium, and when being executed by a processor, the computer program instructions realize the CT scanning remaining frequency reminding method.
The energy supply and power distribution device provided by the invention supplies energy and power to the instantaneous high-power component of computed tomography by the first module, so that the computed tomography equipment does not depend on a special line of medical equipment any more, the energy supply and power distribution device can store the energy and distribute the power to each component of the computed tomography equipment, and the cost for adding the special line of medical equipment in a hospital is reduced. Furthermore, the device can be charged through a low-power network or equipment, or the first module is charged through the second module of the energy supply and power distribution device, so that the energy stored by the first module is greatly guaranteed. The energy supply and power distribution device can be used in remote places with poor power grid quality, and the requirements of computer tomography equipment on a high-quality power network are reduced.
The energy supply and power distribution device provided by the invention can reasonably configure self-sustaining energy according to the use requirement, and the application range of the computed tomography equipment is expanded.
In addition, under the condition of no external energy supply, the device can support the whole system to operate for a period of time by means of the energy held by the device. The capability is strongly supported for emergency management, disaster prevention and reduction and military application.
The foregoing describes the invention and/or some other examples. From the foregoing, it is possible to variously modify the technical aspects of the present invention and to widely configure various embodiments of the present invention without departing from the spirit and scope of the present invention. The presently disclosed subject matter can be embodied in various forms and examples.
It should be understood that the invention is not limited to the specific embodiments described in the application, except as defined in the appended claims.
Claims (18)
1. An energy delivery and power distribution apparatus for a computed tomography imaging apparatus, comprising:
a first module for storing energy;
an output port connected with the computed tomography imaging apparatus for providing power input to a plurality of components of the computed tomography imaging apparatus, the plurality of components including an instantaneous high power consuming component and a general power consuming component;
and when the stored energy of the first module exceeds an energy threshold value, supplying required energy and power to at least the instantaneous high-power energy consumption component of the computed tomography imaging device through the output port.
2. The energy supply and power distribution apparatus according to claim 1, wherein the instantaneous high power consuming components comprise at least one of: high pressure generator bulb system part, rotor motor.
3. The energy supply and power distribution apparatus of claim 1, further comprising a second module connected to the output port for providing the required energy and power to the general power consuming components of the computed tomography imaging apparatus through the output port, the second module being a battery module.
4. The energy supply and power distribution apparatus of claim 3, wherein the general power consuming components comprise at least one of: the device comprises a PCB (printed circuit board), a DMS (digital distribution system) data acquisition board, a temperature control system, a display screen, a scanning bed or a console.
5. The energy supply and power distribution apparatus of claim 1, wherein the apparatus further comprises: the energy supplementing port is used for receiving electric energy provided by an energy supplementing network or equipment, and the power provided by the energy supplementing network or equipment is less than the power provided by a special line of the medical equipment; the energy supplementing port is connected with the first module and/or the second module and used for storing electric energy provided by an energy supplementing network or equipment to the first module and/or the second module.
6. The energy supply and power distribution apparatus of claim 5, wherein the energy replenishment port has a specification for connection of at least one of: a mains network, a solar charging device, a wind energy charging device, a portable charging device or a low power charging device.
7. The energy supply and power distribution apparatus of claim 3, wherein the first module is connected to the second module, the first module for replenishing energy to the second module, or the second module for replenishing energy to the first module.
8. The energy supply and power distribution apparatus of claim 3, wherein the second module comprises an expandable battery module.
9. The energy supply and power distribution apparatus of claim 1 wherein the first module includes a pair of first module cells, one of the first module cells serving as a backup first module cell when the other first module cell is connected to the circuitry for providing energy to the computed tomography imaging device.
10. The energy supply and power distribution apparatus of claim 1, wherein the first module comprises at least one of the following types: graphene super-capacitors, lithium ion super-capacitors, or super-capacitor batteries.
11. The energy supply and power distribution apparatus of claim 1, wherein the first module provides energy and power to instantaneous high power consuming components having a power of 2.2kW or more, and the second module provides energy and power to general power consuming components having a power of less than 2.2 kW.
12. The energy supply and power distribution apparatus of claim 1, further comprising an emergency disconnect switch for disconnecting the output port from providing energy to the computed tomography imaging device.
13. A computed tomography system, comprising: the energy supply and power distribution apparatus of any one of claims 1 to 12, and a computed tomography imaging device.
14. A buffer energy allocation method for the energy supply and power distribution apparatus of any one of claims 1 to 12, comprising:
determining energy complementing power;
determining the average power of CT scanning in the energy supplementing period;
based on the energy supplementing power and the CT scanning average power, judging whether the energy consumption for completing all CT scanning can be supported in the energy supplementing period;
if the judgment can support, configuring a preset buffer energy interval;
if the CT scan cannot be supported, calculating and configuring a buffer energy interval according to the expected CT scan workload.
15. A method for reminding the remaining number of CT scans for the energy supply and power distribution apparatus of any one of claims 1 to 12, comprising:
judging whether the energy consumption for completing all CT scanning can be supported or not in the energy supplementing period;
if the CT scan cannot be supported by the judgment, acquiring the average power of the CT scan and the current storage buffer energy;
calculating the residual CT scanning times;
and generating and reminding the residual CT scanning times.
16. The method for reminding the remaining number of CT scans of claim 15, wherein the obtaining the average power of CT scans comprises:
acquiring historical power data or empirical power data of CT scanning;
and calculating the average power of the CT scan according to the historical power data or the empirical power data of the CT scan based on a learning curve.
17. The method for reminding the remaining number of CT scans of claim 15, further comprising: and acquiring the current storage buffer energy and an early warning energy threshold, and generating a prompt if the current storage buffer energy is smaller than the early warning energy threshold.
18. A non-transitory computer readable storage medium having computer program instructions stored thereon, wherein the computer program instructions, when executed by a processor, implement the method of claim 15.
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| US20040013223A1 (en) * | 2002-07-19 | 2004-01-22 | Masahiko Yamazaki | X-ray computed tomography apparatus |
| CN105326515A (en) * | 2014-07-28 | 2016-02-17 | Ge医疗系统环球技术有限公司 | X-ray detection device and X-ray imaging equipment |
| CN105899134A (en) * | 2013-11-06 | 2016-08-24 | 三星电子株式会社 | X-ray detector, X-ray imaging apparatus and method of controlling the same |
| US20180263591A1 (en) * | 2017-03-20 | 2018-09-20 | General Electric Company | Peak shave enabled computed tomography system with built-in uninterruptible power supply and stabilizer |
| CN109620279A (en) * | 2018-12-30 | 2019-04-16 | 上海医乐信息科技有限公司 | A kind of new energy computer tomography equipment |
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| US20040013223A1 (en) * | 2002-07-19 | 2004-01-22 | Masahiko Yamazaki | X-ray computed tomography apparatus |
| CN105899134A (en) * | 2013-11-06 | 2016-08-24 | 三星电子株式会社 | X-ray detector, X-ray imaging apparatus and method of controlling the same |
| CN105326515A (en) * | 2014-07-28 | 2016-02-17 | Ge医疗系统环球技术有限公司 | X-ray detection device and X-ray imaging equipment |
| US20180263591A1 (en) * | 2017-03-20 | 2018-09-20 | General Electric Company | Peak shave enabled computed tomography system with built-in uninterruptible power supply and stabilizer |
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